CN109137298B - Small semi-automatic cross-stitch embroidery machine - Google Patents
Small semi-automatic cross-stitch embroidery machine Download PDFInfo
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- CN109137298B CN109137298B CN201811061834.8A CN201811061834A CN109137298B CN 109137298 B CN109137298 B CN 109137298B CN 201811061834 A CN201811061834 A CN 201811061834A CN 109137298 B CN109137298 B CN 109137298B
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C3/00—General types of embroidering machines
- D05C3/02—General types of embroidering machines with vertical needles
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
- D05C11/02—Machine needles
- D05C11/04—Arrangements for fastening or inserting in bars or carriers
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
- D05C11/02—Machine needles
- D05C11/06—Needle-driving or control mechanisms
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C13/00—Auxiliary devices incorporated in embroidering machines, not otherwise provided for; Ancillary apparatus for use with embroidering machines
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- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention relates to a small semi-automatic cross-stitch embroidery machine, which comprises a rack, a cloth moving device, a needle threading device and a routing device, wherein the needle threading device, the cloth moving device and the routing device are all arranged on the rack, the cloth moving device is used for fixing embroidery cloth and driving the embroidery cloth to move in the horizontal direction, the needle threading device is used for driving embroidery needles to carry out cross-stitch embroidery on the embroidery cloth, the routing device is used for tensioning embroidery threads on the embroidery cloth, the needle threading device and the routing device are driven by a total power source, the total power source comprises a total transmission rod and a total driving device, the driving device is used for driving the total transmission rod to rotate, the embroidery needles are double-head embroidery needles, and the middle parts of the embroidery needles are provided with threading holes. The invention can drive the needle threading device and the routing device by one power source, and reasonably and accurately control the time sequences of opposite downward needle threading, downward needle jointing, upward needle threading, upward needle jointing and left and right routing through a plurality of groups of incomplete gears, thereby realizing continuous and accurate embroidering process.
Description
Technical Field
The invention relates to embroidery equipment, in particular to a small semi-automatic cross-stitch embroidery machine.
Background
Cross-stitch is commonly called "flower picking" or "supplemental embroidery" in folk. As early as the c.a. 4 century, cross-stitch was spread from turkish via italy in europe. Cross-stitch is an ancient national embroidery with a long history. Nowadays, cross-stitch embroidery comes to China and is applied and developed in China. People are becoming a sunrise industry by combining the traditional technique with modern high-tech techniques. The cross-stitch industry will certainly become a competitive and promising complete industrial chain in China.
Although the current cross-stitch is spread so widely in all countries of the world, there is still no feasible solution for the research of using machines to replace the traditional manual manufacturing process so that the cross-stitch can be produced in large quantities in industry. Although the cross-stitch has been introduced into China in the 4 th century, it has a long history in China. However, the research on how to utilize the mechanical industrial production mode in China to replace the traditional manual cross-stitch is started from the 90 s in the 20 th century.
In the international market, the most advanced technology at present is a computerized embroidery machine. The computer embroidery machine is essentially a sewing machine with a servo feeding system and has no cross-stitch function. Therefore, the research on the cross-stitch embroidery machine is still a worldwide problem.
Although cross-stitch has been introduced into China in the 4 th century of the Gongyuan, the ancient national embroidery has a long history in China. However, in theory, the research on how to utilize the mechanical industrial production mode to replace the traditional manual cross-stitch in China begins from the 80 th century after 20 th.
Today, the degree of textile industrialization is high in China, and China has become a large export country of textiles. But there is still no feasible solution for how to industrially mass-produce the cross-stitch pattern product. Although some websites call for providing cross-stitch embroidery machines on the internet, the cross-stitch embroidery machines are not really cross-stitch embroidery machines, but only sewing machines with embroidery functions.
In some existing computer embroidery machines, an embroidery needle does not completely penetrate through cloth, and an embroidery thread is tensioned and fixed in a bottom thread burying mode; can only complete the processes of embroidery and the like, does not have the function of cross stitch, and the embroidery needle structure is a single-headed needle, while the cross stitch needs the embroidery needle to completely penetrate through the cloth; the embroidery thread needs to be tensioned by a thread bonding mechanism without burying a bottom thread, and the embroidery needle structure is a double-ended needle.
From the comparison and analysis of the functions of the cross-stitch embroidery machine and the computerized embroidery machine, it is known that although the computerized embroidery machine has a strong function, the computerized embroidery machine is actually a sewing machine with a servo system. The current machines do not have the function of producing the cross-stitch technique.
Therefore, the research on the cross-stitch embroidery machine is still a worldwide problem and has wide prospect in the future.
Disclosure of Invention
The invention aims to solve the technical problem of providing a small semi-automatic cross-stitch embroidery machine which is convenient to use and saves energy.
The technical scheme for solving the technical problems is as follows:
a small-sized semi-automatic cross-stitch embroidery machine comprises a rack, a cloth moving device, a needle threading device and a routing device, wherein the needle threading device, the cloth moving device and the routing device are all arranged on the rack, the cloth moving device is used for fixing embroidery cloth and driving the embroidery cloth to move in the horizontal direction, the needle threading device is used for driving embroidery needles to carry out cross-stitch embroidery on the embroidery cloth, the routing device is used for tensioning embroidery threads on the embroidery cloth, the needle threading device and the routing device are driven by a total power source, the total power source comprises a total transmission rod and a total driving device, the driving device is used for driving the total transmission rod to rotate, the embroidery needles are double-head embroidery needles, and threading holes are formed in the middle parts of the embroidery needles.
Further, the cloth moving device comprises a first translation mechanism, a second translation mechanism and a cloth pressing frame, the first translation mechanism and the second translation mechanism are perpendicular to each other, the cloth pressing frame is arranged on the second translation mechanism, the second translation mechanism is used for driving the cloth pressing frame to move in the horizontal direction parallel to the second translation mechanism, the second translation mechanism is arranged on the first translation mechanism, the first translation mechanism is used for driving the second translation mechanism to move in the horizontal direction perpendicular to the first translation mechanism, and the cloth pressing frame is used for fixing the embroidery cloth.
Further, the first translation mechanism and the second translation mechanism are both screw rod driving devices.
Further, the needle threading device comprises an upper needle clamping mechanism and a lower needle clamping mechanism, the upper needle clamping mechanism is arranged above the cloth moving device, the lower needle clamping mechanism is arranged below the cloth moving device, the upper needle clamping mechanism comprises an upper needle clamping device and an upper needle clamping transmission device, the upper needle clamping device comprises an upper push rod, an upper clamping device, an upper spring and an upper L-shaped support, the vertical end of the upper L-shaped support of the upper clamping device is fixed on the frame, the horizontal end of the upper L-shaped support is arranged above the cloth moving device, the horizontal end of the upper L-shaped support is provided with a through hole, the upper push rod is arranged right above the through hole of the upper L-shaped support, the lower end of the upper clamping device penetrates through the through hole, the upper clamping device comprises a plurality of upper clamping strips, the upper ends of the plurality of upper clamping strips are fixed below the upper push rod, and the lower ends of the plurality of the upper clamping strips can be folded or unfolded, and a clamping groove for clamping the embroidery needle is formed inside the embroidery needle when the embroidery needle is folded; the upper spring is sleeved outside the upper clamping device, the upper end of the upper spring is fixed below the upper push rod, and the lower end of the upper spring is provided with a limiting device for preventing the upper spring from passing through the through hole; the upper clamping needle transmission device is used for driving an upper pushing rod which is used for driving the upper clamping device to move in the vertical direction, and the upper clamping device is opened or closed by changing the length of an upper spring wrapped on the outer side of the upper clamping device; the lower needle clamping mechanism comprises a lower needle clamping device and a lower needle clamping transmission device, the lower needle clamping device comprises a lower push rod, a lower clamping device, a lower spring and a lower L-shaped support, and the lower needle clamping device and the upper needle clamping device are arranged in an up-and-down symmetrical mode and are identical in structure.
Furthermore, the upper needle clamping transmission device comprises an upper first transmission rod, an upper second transmission rod, an upper third transmission rod, an upper needle clamping crank and an upper needle clamping connecting rod, the total transmission rod, the upper first transmission rod and the upper second transmission rod are vertical in pairs, one end of the upper first transmission rod is meshed with a bevel gear on the total transmission rod through a bevel gear, the other end of the upper first transmission rod is meshed with a bevel gear on the upper second transmission rod through a bevel gear, an upper first incomplete gear on the upper second transmission rod is meshed with an upper second incomplete gear on the upper third transmission rod, the upper third transmission rod is hinged with the upper end of the upper needle clamping crank, the lower end of the upper needle clamping crank is hinged with the upper end of the upper needle clamping connecting rod, the lower end of the upper needle clamping connecting rod is hinged with a pushing rod, and the lower needle clamping transmission device comprises a lower first transmission rod, a lower second transmission rod, a lower third transmission rod, The lower needle clamping crank and the lower needle clamping connecting rod are symmetrically arranged from top to bottom, the structures of the lower needle clamping transmission device and the upper needle clamping transmission device are the same, and one end of the lower first transmission rod is meshed with a bevel gear on the main transmission rod through the bevel gear.
Furthermore, the time sequence of the lower needle clamping mechanism and the upper needle clamping mechanism is controlled by designing the number of teeth of the upper first incomplete gear and the upper second incomplete gear, the number of teeth of the lower first incomplete gear and the lower second incomplete gear and the transmission time gap between the two groups of gear pairs, so that the moving steps of the lower needle clamping mechanism and the upper needle clamping mechanism are as follows:
s1.1, an upper push rod of an upper needle clamping mechanism pushes an upper clamping device to descend, the lower end of a embroidery needle is pushed to penetrate through embroidery cloth, an upper clamping strip is opened, and a lower push rod of a lower needle clamping mechanism pushes a lower clamping device to ascend and opens a lower clamping strip;
s1.2, the lower push rod drives the lower clamping device to descend and simultaneously closes the lower clamping strip, the lower clamping strip clamps the embroidery needle, and the embroidery needle is driven to integrally penetrate below the embroidery cloth;
s1.3, the lower push rod pushes the lower clamping device to rise, the upper end of the embroidery needle is pushed to penetrate through embroidery cloth, meanwhile, the lower clamping strip is opened, the upper push rod of the upper needle clamping mechanism pushes the upper clamping device to fall, and the upper clamping strip is opened;
and S1.4, the upper push rod drives the upper clamping device to ascend, the upper clamping strip is folded to clamp the embroidery needle, the embroidery needle is driven to integrally penetrate above the embroidery cloth, and the step S1.1 is carried out.
Further, the routing device includes left routing mechanism and right routing mechanism, right routing mechanism includes right routing device and right routing transmission, right routing transmission includes the first drive gear in right side, right second drive gear and the incomplete gear of right third, the first drive gear in right side sets up under on the second drive rod, the meshing of the first drive gear in right side and right second drive gear, right side second drive gear and the coaxial fixed of the incomplete gear of right third, the incomplete gear of right third and the incomplete gear meshing of right fourth, the incomplete gear of right fourth is used for driving right routing device.
Furthermore, the right routing device comprises a right routing wheel, a right cycloid slider, a right cycloid rod, a right cycloid connecting rod, a right guide rail slider, a right guide rail and a right routing rod, the fourth incomplete right gear is coaxially fixed with the right routing wheel, the right cycloid slider is fixed on the outer side of the right routing wheel, the right cycloid slider and the right cycloid rod form a sliding pair, the lower end of the right cycloid rod is hinged with the rack, the upper end of the right cycloid rod is hinged with the lower end of the right cycloid connecting rod, the upper end of the right cycloid connecting rod is hinged with the right guide rail slider, the right guide rail slider and the right guide rail form a sliding pair, the right guide rail is fixed on the side face of the rack, the right routing rod is fixed on the right guide rail slider, and the right routing rod is positioned above the cloth moving device; the left routing mechanism comprises a left routing device and a left routing transmission device, the left routing device comprises a left routing wheel, a left cycloid slider, a left cycloid rod, a left cycloid connecting rod, a left guide rail slider, a left guide rail and a left routing rod, the left routing device and the right routing device are arranged in a bilateral symmetry mode and are identical in structure, the left routing transmission device comprises a routing transmission rod and a routing transmission wheel, one end of the routing transmission rod is fixed with the axle center of a right fourth incomplete gear, the other end of the routing transmission rod is fixed with the axle center of the routing transmission wheel, the routing transmission wheel is meshed with the left routing wheel, and the left routing wheel and the right routing wheel are opposite in rotating direction.
Furthermore, the right routing rod is perpendicular to the right guide rail, and the right routing rod is horizontally arranged.
Further, by designing the number of teeth of the lower first incomplete gear and the lower second incomplete gear, the number of teeth of the right third incomplete gear and the right fourth incomplete gear, and the transmission time gap between the two sets of gear pairs, the time sequence of the left thread winding mechanism and the right thread winding mechanism is controlled, so that after the end of the step S1.4 of the previous period, the motion process of the left thread winding mechanism and the right thread winding mechanism specifically comprises the following steps before the start of the step S1.1 of the next period: the lower clamp pin transmission device drives the right routing transmission device, the right routing transmission device drives the right routing rod of the right routing device to move to a first limit position in the horizontal direction and then return to the original position, the right routing transmission device drives the left routing transmission device, the left routing transmission device drives the left routing rod of the left routing device to move to a second limit position in the horizontal direction and then return to the original position, and the moving directions of the right routing rod and the left routing rod are opposite.
The invention has the beneficial effects that: the invention realizes the automatic control of clamping and releasing needles, threading and cloth passing, needle and thread switching transmission, embroidery thread intermittent tensioning threads and the translation track of embroidery cloth by using machinery, can simultaneously drive an upper needle clamping mechanism, a lower needle clamping mechanism, a left thread bonding mechanism and a right thread bonding mechanism by only one power source, and reasonably and accurately control the time sequence of opposite downward threading, upward threading and left and right thread bonding by a plurality of groups of incomplete gears, thereby realizing the continuous and accurate embroidery process and completely simulating the manual cross embroidery process. The method is simple to operate, only the wire changing step needs to be carried out manually, and other steps are carried out automatically. The invention has the following advantages: 1. the volume is small, the energy consumption is low, the operation is simple and convenient, and the labor intensity is low; 2. the electromechanical integration degree is high, the safety performance is good, the system is stable, a servo motor is controlled by computer programming, and a closed loop feedback loop is used; 3. the cross-stitch embroidery machine has the advantages of simple structure, convenience in operation and maintenance, high efficiency, stable working performance and long service life, and is suitable for large-scale cross-stitch industrial production.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is an enlarged view of the upper needle clamping mechanism;
FIG. 3 is a schematic side view of the present invention;
FIG. 4 is a partial enlarged view of the right wire bonding mechanism;
fig. 5 is a partial perspective view of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a frame; 2. a cloth moving device; 3. a needle threading device; 4. a right thread-tying mechanism; 5. a left wire bonding mechanism; 6. a master drive link; 7. embroidery needle; 21. a first translation mechanism; 22. a second translation mechanism; 23. a cloth pressing frame; 30. a lower second transmission rod; 31. an upper push rod; 32. an upper clamping device; 33. an upper spring; 34. An upper L-shaped bracket; 35. an upper first transmission rod; 36. an upper second transmission rod; 37. an upper third transmission rod; 38. an upper needle clamping crank; 39. an upper clamp pin connecting rod; 361. a first incomplete gear; 371. a second incomplete gear; 41. a right first drive gear; 42. a right second transmission gear; 43. a third right partial gear; 44. a fourth right partial gear; 45. a right cycloid slider; 46. a right cycloid rod; 47. a right rail slide block; 48. a right guide rail; 49. a right thread-tying rod; 50. a right wire-marking wheel; 51. a right cycloidal connecting rod; 52. A left wire-marking wheel; 53. a left cycloid rod; 54. a left guide rail slider; 55. a left guide rail; 56. a left thread binding rod; 57. routing a transmission rod; 58. a routing transmission wheel.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
As shown in fig. 1-5, a small-sized semi-automatic cross-stitch embroidery machine comprises a frame 1, a cloth moving device 2, a needle threading device 3 and a thread bonding device, wherein the needle threading device 3, the cloth moving device 2 and the thread bonding device are all arranged on the frame 1, the cloth moving device 2 is used for fixing embroidery cloth and driving the embroidery cloth to move in the horizontal direction, the needle threading device 3 is used for driving an embroidery needle 7 to perform cross-stitch embroidery on the embroidery cloth, the thread bonding device is used for tensioning embroidery threads on the embroidery cloth, the needle threading device 3 and the thread bonding device are both driven by a total power source, the total power source comprises a total transmission rod 6 and a total driving device, the driving device is used for driving the total transmission rod 6 to rotate, the embroidery needle 7 is a double-head embroidery needle 7, and a thread through hole is formed in the middle of the embroidery needle 7.
The cloth moving device 2 comprises a first translation mechanism 21, a second translation mechanism 22 and a cloth pressing frame 23, wherein the first translation mechanism 21 and the second translation mechanism 22 are perpendicular to each other, the cloth pressing frame 23 is arranged on the second translation mechanism 22, the second translation mechanism 22 is used for driving the cloth pressing frame 23 to move along the horizontal direction parallel to the second translation mechanism 22, the second translation mechanism 22 is arranged on the first translation mechanism 21, the first translation mechanism 21 is used for driving the second translation mechanism 22 to move along the horizontal direction perpendicular to the first translation mechanism 21, and the cloth pressing frame 23 is used for fixing embroidery cloth.
In this embodiment, the first translation mechanism 21 and the second translation mechanism 22 are both screw rod driving devices.
The needle threading device 3 comprises an upper needle clamping mechanism and a lower needle clamping mechanism, the upper needle clamping mechanism is arranged above the cloth moving device 2, the lower needle clamping mechanism is arranged below the cloth moving device 2, the upper needle clamping mechanism comprises an upper needle clamping device and an upper needle clamping transmission device, the upper needle clamping device comprises an upper push rod 31, an upper clamping device 32, an upper spring 33 and an upper L-shaped support 34, the vertical end of the upper L-shaped support 34 of the upper clamping device 32 is fixed on the frame 1, the horizontal end of the upper L-shaped support 34 is arranged above the cloth moving device 2, a through hole is formed in the horizontal end of the upper L-shaped support 34, the upper push rod 31 is arranged right above the through hole of the upper L-shaped support 34, the lower end of the upper clamping device 32 penetrates through the through hole, the upper clamping device 32 comprises a plurality of upper clamping strips, and the upper ends of the plurality of the upper clamping strips are fixed below the upper push rod 31, the lower ends of the upper clamping strips can be folded or unfolded, and a clamping groove for clamping the embroidery needle 7 is formed inside the upper clamping strips when the upper clamping strips are folded; the upper spring 33 is sleeved outside the upper clamping device 32, the upper end of the upper spring is fixed below the upper push rod 31, and the lower end of the upper spring is provided with a limiting device for preventing the upper spring 33 from passing through the through hole; the upper needle clamping transmission device is used for driving an upper push rod 31, the upper push rod 31 is used for driving an upper clamping device 32 to move in the vertical direction, and the upper clamping device 32 is opened or closed by changing the length of an upper spring 33 wrapping the outer side of the upper clamping device 32; the lower needle clamping mechanism comprises a lower needle clamping device and a lower needle clamping transmission device, the lower needle clamping device comprises a lower push rod, a lower clamping device, a lower spring and a lower L-shaped support, and the lower needle clamping device and the upper needle clamping device are arranged in an up-and-down symmetrical mode and are identical in structure.
The upper needle clamping transmission device comprises an upper first transmission rod 35, an upper second transmission rod 36, an upper third transmission rod 37, an upper needle clamping crank 38 and an upper needle clamping connecting rod 39, the total transmission rod 6, the upper first transmission rod 35 and the upper second transmission rod 36 are vertical in pairs, one end of the upper first transmission rod 35 is meshed with a bevel gear on the total transmission rod 6 through a bevel gear, the other end of the upper first transmission rod 35 is meshed with a bevel gear on the upper second transmission rod 36 through a bevel gear, an upper first incomplete gear 361 on the upper second transmission rod 36 is meshed with an upper second incomplete gear 371 on the upper third transmission rod 37, the upper third transmission rod 37 is hinged with the upper end of the upper needle clamping crank 38, the lower end of the upper needle clamping crank 38 is hinged with the upper end of the upper needle clamping connecting rod 39, the lower end of the upper needle clamping connecting rod 39 is hinged with a pushing rod, and the lower needle clamping transmission device comprises a lower first transmission rod, The lower second transmission rod 30, the lower third transmission rod, the lower needle clamping crank and the lower needle clamping connecting rod further comprise a lower first incomplete gear and a lower second incomplete gear. The lower needle clamping transmission device and the upper needle clamping transmission device are symmetrically arranged up and down and have the same structure, and one end of the lower first transmission rod is meshed with the bevel gear on the main transmission rod 6 through the bevel gear.
Through the tooth number of first incomplete gear 361 and last second incomplete gear 371 in the design, down first incomplete gear and the number of teeth of second incomplete gear and the transmission time clearance between two sets of gear pairs down, press from both sides the chronogenesis of needle mechanism and last needle mechanism and control down, make press from both sides the needle mechanism down and the motion step of last needle mechanism is:
step S1.1, an upper push rod 31 of an upper needle clamping mechanism pushes an upper clamping device 32 to descend, the lower end of a embroidery needle 7 is pushed to penetrate through embroidery cloth, an upper clamping strip is opened at the same time, and a lower push rod of a lower needle clamping mechanism pushes a lower clamping device to ascend and opens a lower clamping strip at the same time;
s1.2, the lower push rod drives the lower clamping device to descend and simultaneously closes the lower clamping strip, the lower clamping strip clamps the embroidery needle 7, and the embroidery needle 7 is driven to integrally penetrate below the embroidery cloth;
s1.3, the lower push rod pushes the lower clamping device to rise, the upper end of the embroidery needle 7 is pushed to penetrate through embroidery cloth, meanwhile, the lower clamping strip is opened, the upper push rod 31 of the upper needle clamping mechanism pushes the upper clamping device 32 to fall, and the upper clamping strip is opened;
and S1.4, driving the upper clamping device 32 to ascend by the upper push rod 31, closing the upper clamping strip to clamp the embroidery needle 7, driving the embroidery needle 7 to integrally penetrate above the embroidery cloth, and turning to the step S1.1.
The routing device includes left routing mechanism 5 and right routing mechanism 4, right routing mechanism 4 includes right routing device and right routing transmission, right routing transmission includes right first drive gear 41, right second drive gear 42 and right third incomplete gear 43, right first drive gear 41 sets up under on second drive rod 30, right first drive gear 41 and right second drive gear 42 mesh, right second drive gear 42 and the coaxial fixed of right third incomplete gear 43, right third incomplete gear 43 and the meshing of right fourth incomplete gear 44, right fourth incomplete gear 44 is used for driving right routing device.
The right routing device comprises a right routing wheel 50, a right cycloid slider 45, a right cycloid rod 46, a right cycloid connecting rod 51, a right guide rail slider 47, a right guide rail 48 and a right routing rod 49, the right incomplete gear 44 is coaxially fixed with the right routing wheel 50, the right cycloid slider 45 is fixed on the outer side of the right routing wheel 50, the right cycloid slider 45 and the right cycloid rod 46 form a sliding pair, the lower end of the right cycloid rod 46 is hinged with the rack 1, the upper end of the right cycloid rod is hinged with the lower end of the right cycloid connecting rod 51, the upper end of the right cycloid connecting rod 51 is hinged with the right guide rail slider 47, the right guide rail slider 47 and the right guide rail 48 form a sliding pair, the right guide rail 48 is fixed on the side face of the rack 1, the right routing rod 49 is fixed on the right guide rail slider 47, and the right routing rod 49 is positioned above the cloth moving device 2; the left routing mechanism 5 comprises a left routing device and a left routing transmission device, the left routing device comprises a left routing wheel 52, a left cycloid slider, a left cycloid rod 53, a left cycloid connecting rod, a left guide rail slider 54, a left guide rail 55 and a left routing rod 56, the left routing device and the right routing device are arranged in bilateral symmetry and have the same structure, the left routing transmission device comprises a routing transmission rod 57 and a routing transmission wheel 58, one end of the routing transmission rod 57 is fixed with the axis of the right fourth incomplete gear 44, the other end of the routing transmission rod 57 is fixed with the axis of the routing transmission wheel 58, the routing transmission wheel 58 is meshed with the left routing wheel 52, and the left routing wheel 52 and the right routing wheel 50 rotate in opposite directions.
The right routing rod 49 is perpendicular to the right guide rail 48, and the right routing rod 49 is horizontally arranged.
By designing the tooth number of the lower first incomplete gear and the lower second incomplete gear, the tooth number of the right third incomplete gear 43 and the right fourth incomplete gear 44 and the transmission time gap between the two groups of gear pairs, the time sequences of the left wire bonding mechanism 5 and the right wire bonding mechanism 4 are controlled, so that after the step S1.4 of the previous period is finished, the movement process of the left wire bonding mechanism 5 and the right wire bonding mechanism 4 is started before the step S1.1 of the next period, the method specifically comprises the following steps: the lower clamp pin transmission device drives the right routing transmission device, the right routing transmission device drives the right routing rod 49 of the right routing device to move to a first limit position in the horizontal direction and then return to the original position, the right routing transmission device drives the left routing transmission device, the left routing transmission device drives the left routing rod 56 of the left routing device to move to a second limit position in the horizontal direction and then return to the original position, and the moving directions of the right routing rod 49 and the left routing rod 56 are opposite.
Before the small semi-automatic cross-stitch embroidery machine is used, the periphery of embroidery cloth is clamped by a cloth pressing frame, embroidery threads with corresponding colors are threaded in the middle of an embroidery needle, and then embroidery operation is carried out, wherein the working process of the invention is as follows:
(1) cloth moving device
By controlling the first translation mechanism and the second translation mechanism, the embroidery cloth on the cloth pressing frame is driven to move to the corresponding position between the upper needle clamping mechanism and the lower needle clamping mechanism, and the embroidery needle is aligned to corresponding grids on the embroidery cloth.
(2) Threading the embroidery needle from the upper part of the embroidery cloth to the lower part of the embroidery cloth
2.1, the main transmission rod drives an upper second transmission rod to rotate by driving an upper first transmission rod, the upper second transmission rod drives an upper second incomplete gear 371 and an upper third transmission rod to rotate by driving an upper first incomplete gear 361, the upper third transmission rod drives an upper push rod 31 to push an upper clamping device 32 to descend, the lower end of a embroidery needle 7 is pushed to penetrate through embroidery cloth, a limiting device at the lower end of an upper spring is blocked above a through hole, the upper spring is compressed, the lower end of an upper clamping strip penetrates through the through hole, the lower end of the upper clamping strip is opened due to the loss of the tightening of the upper spring, and a lower push rod of a lower clamping needle mechanism pushes a lower clamping device to ascend and simultaneously open a lower clamping strip;
and 2.2, the main transmission rod drives the lower first transmission rod to drive the lower second transmission rod to rotate, the lower second transmission rod drives the lower second incomplete gear and the lower third transmission rod to rotate through the lower first incomplete gear, the lower third transmission rod drives the lower transmission rod to drive the lower clamping device to descend and simultaneously fold the lower clamping strip, the lower clamping strip clamps the embroidery needle 7, and the embroidery needle 7 is driven to integrally penetrate below the embroidery cloth.
(3) Threading the embroidery needle from the lower part of the embroidery cloth to the upper part of the embroidery cloth
3.1, the main transmission rod drives a lower second transmission rod to rotate through driving a lower first transmission rod, the lower second transmission rod drives a lower second incomplete gear and a lower third transmission rod to rotate through a lower first incomplete gear, the lower third transmission rod drives a lower transmission rod to push a lower clamping device to ascend, the upper end of a embroidery needle 7 is pushed to penetrate through embroidery cloth, meanwhile, a lower clamping strip is opened, an upper pushing rod 31 of an upper needle clamping mechanism pushes an upper clamping device 32 to descend, and the upper clamping strip is opened;
3.2, the main transmission rod drives the upper second transmission rod to rotate by driving the upper first transmission rod, the upper second transmission rod drives the upper second incomplete gear 371 and the upper third transmission rod to rotate by driving the upper first incomplete gear 361, the upper third transmission rod drives the upper push rod 31 to drive the upper clamping device 32 to ascend, the upper clamping strips are folded to clamp the embroidery needle 7, the embroidery needle 7 is driven to integrally penetrate above the embroidery cloth, and the step S1.1 is carried out.
(4) Tensioning the embroidery thread
The lower second transmission rod of the lower needle clamping mechanism drives a right third incomplete gear to rotate through a right first transmission gear, the right third incomplete gear drives a right fourth incomplete gear to rotate, the right fourth incomplete gear drives a right routing wheel to rotate, the right routing wheel drives a right cycloid rod to move through driving a right cycloid slider, the right cycloid rod drives a right routing rod to move to a first limit position in the horizontal direction through driving a right cycloid connecting rod and then returns to the original position, the routing transmission rod drives a routing transmission wheel to rotate through the routing transmission rod during rotation of the right fourth incomplete gear, the routing transmission wheel drives a left routing wheel to rotate, the left routing wheel drives a left routing rod to move to a second limit position in the horizontal direction and then returns to the original position, the moving directions of the right routing rod and the left routing rod are opposite, the left routing rod and the right routing rod tension embroidery thread on the embroidery cloth together, and a needle sewing step is completed.
And (3) circularly performing the steps to perform continuous embroidery, threading embroidery threads with corresponding colors on the middle part of the embroidery needle when the embroidery threads are used up, continuing to perform embroidery operation, and directly replacing the corresponding embroidery threads when the embroidery colors need to be changed, and then performing embroidery.
The invention can simultaneously drive the upper needle clamping mechanism, the lower needle clamping mechanism, the left thread bonding mechanism and the right thread bonding mechanism by only one power source, and reasonably and accurately control the time sequence of opposite downward threading, upward threading and left and right thread bonding by a plurality of groups of incomplete gears, thereby realizing continuous and accurate embroidering process and completely simulating the embroidering process of manual cross embroidery. The method is simple to operate, only the wire changing step needs to be carried out manually, and other steps are carried out automatically.
The invention has the following advantages: 1. the volume is small, the energy consumption is low, the operation is simple and convenient, and the labor intensity is low; 2. the electromechanical integration degree is high, the safety performance is good, the system is stable, a servo motor is controlled by computer programming, and a closed loop feedback loop is used; 3. the cross-stitch embroidery machine has the advantages of simple structure, convenience in operation and maintenance, high efficiency, stable working performance and long service life, and is suitable for large-scale cross-stitch industrial production.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. A small semi-automatic cross-stitch embroidery machine is characterized by comprising a frame (1), a cloth moving device (2), a needle threading device (3) and a routing device, the needle threading device (3), the cloth moving device (2) and the routing device are all arranged on the frame (1), the cloth moving device (2) is used for fixing the embroidery cloth and driving the embroidery cloth to move in the horizontal direction, the needle threading device (3) is used for driving an embroidery needle (7) to perform cross-stitch embroidery on embroidery cloth, the routing device is used for tensioning embroidery threads on the embroidery cloth, the needle threading device (3) and the routing device are both driven by a total power source, the total power source comprises a total transmission rod (6) and a total driving device, the driving device is used for driving the main driving rod (6) to rotate, the embroidery needle (7) is a double-head embroidery needle (7), and a threading hole is formed in the middle of the embroidery needle (7);
the needle threading device (3) comprises an upper needle clamping mechanism and a lower needle clamping mechanism, the upper needle clamping mechanism is arranged above the cloth moving device (2), the lower needle clamping mechanism is arranged below the cloth moving device (2), the upper needle clamping mechanism comprises an upper needle clamping device and an upper needle clamping transmission device, the upper needle clamping device comprises an upper push rod (31), an upper clamping device (32), an upper spring (33) and an upper L-shaped support (34), the vertical end of the upper L-shaped support (34) is fixed on the rack (1), the horizontal end of the upper L-shaped support (34) is arranged above the cloth moving device (2), the horizontal end of the upper L-shaped support (34) is provided with a through hole, the upper push rod (31) is arranged right above the through hole of the upper L-shaped support (34), the lower end of the upper clamping device (32) penetrates through the through hole, the upper clamping device (32) comprises a plurality of upper clamping strips, the upper ends of the upper clamping strips are fixed below the upper push rod (31), the lower ends of the upper clamping strips can be folded or unfolded, and clamping grooves for clamping the embroidery needles (7) are formed inside the upper clamping strips when the upper clamping strips are folded; the upper spring (33) is sleeved outside the upper clamping device (32), the upper end of the upper spring (33) is fixed below the upper push rod (31), and the lower end of the upper spring (33) is provided with a limiting device for preventing the upper spring (33) from passing through the through hole; the upper needle clamping transmission device is used for driving an upper pushing rod (31), the upper pushing rod (31) is used for driving an upper clamping device (32) to move in the vertical direction, and the upper clamping device (32) is opened or closed by changing the length of an upper spring (33) wrapped on the outer side of the upper clamping device (32); the lower needle clamping mechanism comprises a lower needle clamping device and a lower needle clamping transmission device, the lower needle clamping device comprises a lower push rod, a lower clamping device, a lower spring and a lower L-shaped support, and the lower needle clamping device and the upper needle clamping device are arranged in an up-and-down symmetrical mode and are identical in structure.
2. Small semi-automatic cross-stitch embroidery machine according to claim 1, characterized in that said cloth transfer device (2) comprises a first translation mechanism (21), a second translation mechanism (22) and a cloth pressing frame (23), said first translation mechanism (21) and said second translation mechanism (22) being perpendicular to each other, said cloth pressing frame (23) being arranged on said second translation mechanism (22), said second translation mechanism (22) being adapted to drive said cloth pressing frame (23) to move in a horizontal direction parallel to said second translation mechanism (22), said second translation mechanism (22) being arranged on said first translation mechanism (21), said first translation mechanism (21) being adapted to drive said second translation mechanism (22) to move in a horizontal direction perpendicular to said first translation mechanism (21), said cloth pressing frame (23) being adapted to fix the embroidery cloth.
3. Small semi-automatic cross-stitch embroidery machine according to claim 2, characterized in that said first translation mechanism (21) and said second translation mechanism (22) are both screw drives.
4. The small-sized semi-automatic cross-stitch embroidery machine according to claim 3, wherein the upper gripper transmission device comprises an upper first transmission rod (35), an upper second transmission rod (36), an upper third transmission rod (37), an upper gripper crank (38) and an upper gripper connecting rod (39), the master transmission rod (6), the upper first transmission rod (35) and the upper second transmission rod (36) are perpendicular to each other two by two, one end of the upper first transmission rod (35) is engaged with a bevel gear on the master transmission rod (6) through a bevel gear, the other end of the upper first transmission rod (35) is engaged with a bevel gear on the upper second transmission rod (36) through a bevel gear, an upper first incomplete gear (361) on the upper second transmission rod (36) is engaged with an upper second incomplete gear (371) on the upper third transmission rod (37), and the upper third transmission rod (37) is hinged with the upper end of the upper gripper crank (38), the lower end of the upper needle clamping crank (38) is hinged to the upper end of the upper needle clamping connecting rod (39), the lower end of the upper needle clamping connecting rod (39) is hinged to the push rod, the lower needle clamping transmission device comprises a lower first transmission rod, a lower second transmission rod (30), a lower third transmission rod, a lower needle clamping crank and a lower needle clamping connecting rod, and further comprises a lower first incomplete gear and a lower second incomplete gear, the lower needle clamping transmission device and the upper needle clamping transmission device are symmetrically arranged up and down and have the same structure, and one end of the lower first transmission rod is meshed with a bevel gear on the main transmission rod (6) through a bevel gear.
5. The small-sized semi-automatic cross-stitch embroidery machine according to claim 4, characterized in that the timing of the lower needle clamping mechanism and the upper needle clamping mechanism is controlled by designing the number of teeth of the upper first incomplete gear (361) and the upper second incomplete gear (371), the number of teeth of the lower first incomplete gear and the lower second incomplete gear, and the transmission time gap between the two sets of gear pairs, so that the moving steps of the lower needle clamping mechanism and the upper needle clamping mechanism are as follows:
s1.1, an upper push rod (31) of an upper needle clamping mechanism pushes an upper clamping device (32) to descend, the lower end of a embroidery needle (7) is pushed to penetrate through embroidery cloth, an upper clamping strip is opened at the same time, and a lower push rod of a lower needle clamping mechanism pushes a lower clamping device to ascend and opens a lower clamping strip at the same time;
s1.2, the lower push rod drives the lower clamping device to descend and simultaneously closes the lower clamping strip, the lower clamping strip clamps the embroidery needle (7), and the embroidery needle (7) is driven to integrally penetrate below the embroidery cloth;
s1.3, the lower push rod pushes the lower clamping device to rise, the upper end of the embroidery needle (7) is pushed to penetrate through embroidery cloth, meanwhile, the lower clamping strip is opened, the upper push rod (31) of the upper needle clamping mechanism pushes the upper clamping device (32) to fall, and the upper clamping strip is opened;
and S1.4, driving the upper clamping device (32) to ascend by the upper push rod (31), closing the upper clamping strip to clamp the embroidery needle (7), driving the embroidery needle (7) to integrally penetrate above the embroidery cloth, and turning to the step S1.1.
6. Small semi-automatic cross-stitch embroidery machine according to claim 5, characterized in that said thread-bonding means comprise a left thread-bonding mechanism (5) and a right thread-bonding mechanism (4), the right routing mechanism (4) comprises a right routing device and a right routing transmission device, the right routing transmission device comprises a right first transmission gear (41), a right second transmission gear (42) and a right third incomplete gear (43), the right first transmission gear (41) is arranged on the lower second transmission rod (30), the right first transmission gear (41) is meshed with the right second transmission gear (42), the right second transmission gear (42) and the right third incomplete gear (43) are coaxially fixed, the right third incomplete gear (43) is meshed with the right fourth incomplete gear (44), and the right fourth incomplete gear (44) is used for driving the right routing device.
7. The small-sized semi-automatic cross embroidery machine according to claim 6, wherein the right routing device comprises a right routing wheel (50), a right cycloid slider (45), a right cycloid rod (46), a right cycloid connecting rod (51), a right guide rail slider (47), a right guide rail (48) and a right routing rod (49), the right fourth incomplete gear (44) is coaxially fixed with the right routing wheel (50), the right cycloid slider (45) is fixed on the outer side of the right routing wheel (50), the right cycloid slider (45) and the right cycloid rod (46) form a sliding pair, the lower end of the right cycloid rod (46) is hinged with the machine frame (1), the upper end of the right cycloid rod is hinged with the lower end of the right cycloid connecting rod (51), the upper end of the right cycloid connecting rod (51) is hinged with the right guide rail slider (47), the right guide rail slider (47) and the right guide rail (48) form a sliding pair, the right guide rail (48) is fixed on the side surface of the machine frame (1), a right thread binding rod (49) is fixed on the right guide rail sliding block (47), and the right thread binding rod (49) is positioned above the cloth moving device (2); left side routing mechanism (5) are including left routing device and left routing transmission, left side routing device includes left routing wheel (52), left cycloid slider, left cycloid pole (53), left cycloid connecting rod, left guide rail slider (54), left guide rail (55) and left routing pole (56), left side routing device sets up and the structure is the same with right routing device bilateral symmetry, and left routing transmission includes routing transfer line (57) and routing drive wheel (58), routing transfer line (57) one end is fixed with the axle center of right fourth incomplete gear (44), and the other end is fixed with the axle center of routing drive wheel (58), routing drive wheel (58) and left routing wheel (52) meshing, left side routing wheel (52) and right routing wheel (50) rotation direction are opposite.
8. Small semi-automatic cross-stitch embroidery machine according to claim 7, characterized in that said right thread take-up lever (49) is perpendicular to the right guide rail (48) and said right thread take-up lever (49) is arranged horizontally.
9. The small semi-automatic cross-stitch embroidery machine according to claim 8, characterized in that the timing of the left thread-drawing mechanism (5) and the right thread-drawing mechanism (4) is controlled by designing the number of teeth of the lower first incomplete gear and the lower second incomplete gear, the number of teeth of the right third incomplete gear (43), the right fourth incomplete gear (44) and the transmission time gap between the two sets of gear pairs, so that the movement process of the left thread-drawing mechanism (5) and the right thread-drawing mechanism (4) is after the end of step S1.4 of the previous cycle and before the start of step S1.1 of the next cycle, and specifically comprises the following steps: the lower clamp pin transmission device drives the right routing transmission device, the right routing transmission device drives a right routing rod (49) of the right routing device to move to a first limit position in the horizontal direction and then return to the original position, the right routing transmission device drives a left routing transmission device, the left routing transmission device drives a left routing rod (56) of the left routing device to move to a second limit position in the horizontal direction and then return to the original position, and the moving directions of the right routing rod (49) and the left routing rod (56) are opposite.
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