CN205443636U - Sewing machine - Google Patents

Abstract

The utility model relates to the technical field of textile equipment, and discloses a sewing machine, which comprises a sewing table and a sewing needle arranged on the sewing table. The sewing needle can reciprocate in the height direction to perform sewing work. The sewing machine also includes a blocking plate positioned on one side of the sewing needle and a supporting device connecting the blocking plate and the sewing table. The blocking plate is arranged on the sewing table through the supporting device, and the blocking plate can move radially along the table top of the sewing table, and there is a gap reserved between the blocking plate and the sewing table for passing the fabric to be sewn. The sewing machine prevents needles from pricking fingers when manually tensioning the fabric.

Description

sewing machine

technical field

The utility model relates to the field of textile equipment, in particular to a sewing machine.

Background technique

A sewing machine, also known as a tailor or sewing machine, is a machine used for textiles, which can sew textiles or other materials together with threads. Sewing machines have greatly improved the production efficiency of the textile and garment industry. At present, sewing machines are still one of the indispensable production equipment in the textile industry.

When the sewing machine processes workpieces such as cloth, it needs to be processed after the cloth is tensioned to prevent the workpiece from being wrinkled and affecting product quality. At present, the more common method is to use manual tensioning of the cloth, which brings a huge problem: operators, especially novice operators, are prone to prick their fingers by putting their hands under the needle, resulting in work-related injuries.

In the prior art, some solutions to this problem have been proposed: for example, the Chinese patent application number CN201210484759.2 discloses an automatic cloth pressing device for a sewing machine, which uses automatic equipment to press cloth to achieve the effect of tensioning the cloth , to prevent the operator from pricking his fingers.

However, since the operating experience during manual operation has an irreplaceable role in the work of the sewing machine, and directly determines the sewing effect of the obtained fabric, and the cost of the automatic cloth pressing device is relatively high, it is difficult to popularize, so the automatic pressing device is adopted. Cloth devices are not sufficient to meet the needs of the prior art.

Utility model content

The purpose of the utility model is to provide a sewing machine, which can prevent the sewing needle from pricking the fingers when the cloth is manually tensioned.

In order to solve the above technical problems, the embodiment of the utility model provides a sewing machine, including a sewing table and a sewing needle arranged on the sewing table, the sewing needle can reciprocate in the height direction to perform sewing work. The sewing machine also includes a blocking plate positioned on one side of the sewing needle and a supporting device connecting the blocking plate and the sewing table. The blocking plate is arranged on the sewing table through the supporting device, and the blocking plate can move radially along the table top of the sewing table, and there is a gap reserved between the blocking plate and the sewing table for passing the fabric to be sewn.

The embodiment of the utility model utilizes the blocking plate arranged on one side of the sewing needle to block the hands, prevents the hands from entering under the sewing needle, and prevents the sewing needle from pricking the fingers when the cloth is manually tensioned. Moreover, the embodiment of the present utility model reserves a gap between the blocking plate and the sewing table, so that the existence of the blocking plate will not cause obstruction to manual tensioning and delivery of cloth. In addition, because the embodiment of the present invention utilizes the supporting device arranged on the sewing table to support the blocking plate, it can also prevent the blocking plate from tipping over, ensuring the smooth progress of the sewing work.

Wherein, preferably, the support device may include a rotating shaft fixedly connected with the sewing table, the rotating shaft can rotate along its own axis, one side of the blocking plate is connected with the rotating shaft, and the blocking plate can rotate with the rotating shaft. Utilizing the rotating shaft can make one side of the blocking plate rotate according to requirements, which increases the range of motion of the hand and reduces the blocking effect of the blocking plate.

Further, preferably, the supporting device further includes a fixed shaft fixedly connected to the sewing table, and the side of the blocking plate not connected to the rotating shaft is connected to the fixed shaft through a tension spring. Utilizing the extension spring can make the blocking plate self-reset after being rotated, so that the blocking plate does not need to be moved repeatedly to reset the blocking plate, which reduces the labor intensity of the operator.

In addition, preferably, the supporting device may also include at least two translation shafts connected with the blocking plate, a limit assembly connected with the translation shafts, and a first fixing plate arranged at intervals above the sewing table top. Wherein, the first fixed plate is provided with the same number of translation shafts and one-to-one corresponding first through holes, the translation shaft passes through the corresponding first through holes, and can translate within the diameter range of the first through holes, and the position is limited. The component is used to prevent the translation shaft from detaching from the first through hole. Setting the translation shaft on the floating fixed plate can prevent the limit assembly from blocking the cloth feeding of the sewing machine, which has better reliability. However, the use of the limiting component can ensure that the translation axis is always located in the first through hole, preventing the blocking plate from tipping over and falling down. Compared with the simple rotatable blocking plate, the blocking plate that can move in the direction of the table top of the sewing table through the translation axis, its motion mode is more in line with the needs of the hand movement of the operator during sewing, so it has better practicality. sex.

Further, preferably, the limiting assembly includes a first positioning piece arranged at the upper end of each first through hole, the diameter of the first positioning piece is larger than the diameter of the first through hole, and the translation shaft is connected to the first positioning piece. The translation shaft is limited by using the positioning piece larger than the diameter of the first through hole, and the purpose of preventing the blocking plate from falling over and falling can be realized simply and at low cost.

Still further, preferably, the supporting device further includes a second fixing plate arranged at intervals above the first fixing plate, and the second fixing plate is provided with second through holes having the same number as the first through holes and one-to-one correspondence. The support device also includes a second positioning piece arranged at any end of the second through hole, the diameter of the second positioning piece is larger than the diameter of the second through hole, and the translation axis passes through the second through hole and is connected with the second positioning piece. The double through holes arranged at intervals and multiple sets of positioning pieces can stabilize the center of gravity of the blocking plate, further preventing the blocking plate from falling over.

Furthermore, preferably, the support device further includes a reset assembly disposed between the first fixing plate and the second fixing plate, and the reset assembly is used to restore the translated translation axis to an initial position. Utilizing the reset component can enable the blocking plate to reset itself after translation, so that it is not necessary to repeatedly toggle the blocking plate to reset the blocking plate, which reduces the labor intensity of the operator.

Still further, preferably, the reset assembly includes at least 3 springs, one end of these springs is connected to the outer wall of the translation shaft, and the other end is relatively fixed to the first fixing plate, and these springs are arranged around the translation shaft. A plurality of springs arranged around the translation shaft realize the reset of the translation shaft, thereby realizing the reset of the blocking plate.

In addition, preferably, the table top of the sewing table is also provided with the same number of first through holes and one-to-one corresponding third through holes, the translation axis passes through the corresponding third through holes, and can be used in the third through holes. Translate within the diameter range of the hole, and the stop component is also used to prevent the translation shaft from detaching from the third through hole. At the same time, the third through hole and the first through hole are respectively used to form a limit at both ends of the translation shaft, which can make the work of the translation shaft more stable.

In addition, preferably, a handle is provided on the side of the blocking plate facing away from the sewing needle, and the handle is used to pull back the blocking plate. Setting the handle can make the pull-back action of the blocking plate more convenient. And preferably, the side of the blocking plate facing away from the sewing needle is also provided with a recessed portion, and the recessed portion is arranged side by side with the handle. When the recessed portion approximately matches the shape of the operator's index finger, the handle is arranged at a position where the operator's thumb can be hooked back. Such a setting can improve the operating speed and meet the requirements of ergonomics.

Description of drawings

Fig. 1 is a three-dimensional schematic diagram of a sewing machine according to a first embodiment of the present invention;

Fig. 2 is a three-dimensional schematic diagram of a sewing machine according to a second embodiment of the present invention;

Fig. 3 is a schematic side view of the blocking plate supporting device of the sewing machine according to the second embodiment of the present invention;

Fig. 4 is a schematic side view of the blocking plate supporting device of the sewing machine according to the third embodiment of the present invention;

Fig. 5 is a schematic side view of the blocking plate supporting device of the sewing machine according to the fourth embodiment of the present invention;

Fig. 6 is a schematic side view of the blocking plate supporting device of the sewing machine according to the fifth embodiment of the present invention;

Fig. 7 is a schematic perspective view of a sewing machine according to a sixth embodiment of the present invention.

Explanation of reference signs:

1. Sewing table; 2. Sewing needle; 3. Blocking plate; 4. Fabric; 5. Supporting device; 51. Rotating shaft; 52. Fixed shaft; 53. Extension spring; 54. Translating shaft; 55. The first fixed plate ; 56, the first through hole; 57, the second through hole; 58, the second fixed plate; 59, the spring; 6, the limit assembly; 61, the first positioning piece; 62, the second positioning piece;

detailed description

Implementation Mode 1

The first embodiment of the present utility model provides a sewing machine, as shown in FIG. 1 , comprising a sewing table and a sewing needle arranged on the sewing table. The sewing needle can reciprocate in the height direction to perform sewing work. The sewing machine also includes a blocking plate positioned on one side of the sewing needle and a supporting device connecting the blocking plate and the sewing table. The blocking plate is arranged on the sewing table through the supporting device, and the blocking plate can move radially along the table top of the sewing table, and there is a gap reserved between the blocking plate and the sewing table for passing the fabric to be sewn.

Wherein, the supporting device includes a rotating shaft fixedly connected with the sewing table, the rotating shaft can rotate along its own axis, one side of the blocking plate is connected with the rotating shaft, and the blocking plate can rotate with the rotating shaft. Utilizing the rotating shaft can make one side of the blocking plate rotate according to requirements, which increases the range of motion of the hand and reduces the blocking effect of the blocking plate. And, the supporting device also includes a fixed shaft fixedly connected with the sewing table, and the side of the blocking plate not connected with the rotating shaft is connected with the fixed shaft through a tension spring. Utilizing the extension spring can make the blocking plate self-reset after being rotated, so that the blocking plate does not need to be moved repeatedly to reset the blocking plate, which reduces the labor intensity of the operator. Certainly, the purpose of the utility model can be basically realized without providing a return spring.

In this embodiment, the blocking plate may be transparent to facilitate observation of the tensioned state of the cloth. During actual work, the operator can push the blocking plate so that the hand is in a suitable position, and then use the hand to tension the fabric to perform sewing operations.

The embodiment of the utility model utilizes the blocking plate arranged on one side of the sewing needle to block the hands, prevents the hands from entering under the sewing needle, and prevents the sewing needle from pricking the fingers when the cloth is manually tensioned. Moreover, the embodiment of the present utility model reserves a gap between the blocking plate and the sewing table, so that the existence of the blocking plate will not cause obstruction to manual tensioning and delivery of cloth. In addition, because the embodiment of the present invention utilizes the supporting device arranged on the sewing table to support the blocking plate, it can also prevent the blocking plate from tipping over, ensuring the smooth progress of the sewing work.

Implementation Mode Two

The second embodiment of the present utility model provides a sewing machine, as shown in Fig. 2 and Fig. 3, comprising a sewing table and a sewing needle arranged on the sewing table, the sewing needle can reciprocate in the height direction to perform sewing work. The sewing machine also includes a blocking plate positioned on one side of the sewing needle and a supporting device connecting the blocking plate and the sewing table. The blocking plate is arranged on the sewing table through the supporting device, and the blocking plate can move radially along the table top of the sewing table, and there is a gap reserved between the blocking plate and the sewing table for passing the fabric to be sewn.

In this embodiment, the supporting device includes at least two translation shafts connected to the blocking plate, a limit assembly connected to the translation shafts, and a first fixing plate arranged at intervals above the sewing table. Wherein, the first fixed plate is provided with the same number of translation shafts and one-to-one corresponding first through holes, the translation shaft passes through the corresponding first through holes, and can translate within the diameter range of the first through holes, and the position is limited. The component is used to prevent the translation shaft from detaching from the first through hole. Setting the translation shaft on the floating fixed plate can prevent the limit assembly from blocking the cloth feeding of the sewing machine, which has better reliability. However, the use of the limiting component can ensure that the translation axis is always located in the first through hole, preventing the blocking plate from tipping over and falling down. Compared with the simple rotatable blocking plate, the blocking plate that can move in the direction of the table top of the sewing table through the translation axis, its motion mode is more in line with the needs of the hand movement of the operator during sewing, so it has better practicality. sex.

Specifically, the limiting assembly includes a first positioning piece arranged at the upper end of each first through hole, the diameter of the first positioning piece is larger than the diameter of the first through hole, and the translation shaft is connected with the first positioning piece. The translation shaft is limited by using the positioning piece larger than the diameter of the first through hole, and the purpose of preventing the blocking plate from falling over and falling can be realized simply and at low cost. Apparently, as shown in FIG. 4 , a first positioning piece can also be added at the lower end of the first through hole, so as to further enhance the limiting effect. In addition, the positioning piece can also be equivalently replaced by a positioning block or other positioning pieces.

It is worth mentioning that in the first embodiment of the utility model, the rotating shaft can also be fixed on the fixed plate, and the gap between the blocking plate and the sewing machine table can be created through the suspended rotating shaft, thus giving the fabric a larger exercise space.

Implementation Mode Three

The third embodiment of the utility model provides a sewing machine, the third embodiment is a further improvement of the second embodiment, the main improvement is that, in the third embodiment of the utility model, as shown in Figure 5, The support device also includes a second fixing plate arranged at intervals above the first fixing plate, and the second fixing plate is provided with second through holes having the same number as the first through holes and one-to-one correspondence. The support device also includes a second positioning piece arranged at any end of the second through hole, the diameter of the second positioning piece is larger than the diameter of the second through hole, and the translation axis passes through the second through hole and is connected with the second positioning piece. The double through holes arranged at intervals and multiple sets of positioning pieces can stabilize the center of gravity of the blocking plate, further preventing the blocking plate from falling over.

Implementation Mode Four

The fourth embodiment of the utility model provides a sewing machine, the fourth embodiment is a further improvement of the third embodiment, the main improvement is that, in the fourth embodiment of the utility model, the supporting device also includes a A reset component between the first fixed plate and the second fixed plate, the reset component is used to restore the translated translation axis to its original position.

Utilizing the reset component can enable the blocking plate to reset itself after translation, so that it is not necessary to repeatedly toggle the blocking plate to reset the blocking plate, which reduces the labor intensity of the operator.

Specifically, in this embodiment, as shown in FIG. 6 , the reset assembly includes at least three springs, one end of which is connected to the outer wall of the translation shaft, and the other end is relatively fixed to the first fixing plate, and these The spring is arranged around the translation axis. A plurality of springs arranged around the translation shaft realize the reset of the translation shaft, thereby realizing the reset of the blocking plate. Obviously, the more the number of springs, the smoother the reset movement of the translation axis in all directions, and the ideal number of springs is preferably 6 to 8.

Implementation Mode Five

The fifth embodiment of the present utility model provides a sewing machine. The fifth embodiment is a further improvement of the fourth embodiment. The main improvement is that in the fifth embodiment of the present utility model, the sewing table is further improved There are third through holes with the same number as the first through holes and one-to-one correspondence. The translation shaft passes through the corresponding third through holes and can translate within the diameter range of the third through holes. The limit assembly is also used to prevent The translation shaft breaks away from the third through hole. At the same time, the third through hole and the first through hole are respectively used to form a limit at both ends of the translation shaft, which can make the work of the translation shaft more stable.

In this embodiment, the structure of the limiting component may be the same as that of the previous embodiments, or other structures may be selected, so details will not be repeated here.

Embodiment six

The sixth embodiment of the present utility model provides a sewing machine. The sixth embodiment can be a further improvement of any one of the first to fifth embodiments. The main improvement is that in the sixth embodiment of the present utility model, As shown in Figure 7, a handle is provided on the side of the blocking plate facing away from the sewing needle, and the handle is used to pull back the blocking plate. Setting the handle can make the pull-back action of the blocking plate more convenient.

However, in this embodiment, the side of the blocking plate facing away from the sewing needle is also provided with a recessed portion (not shown in the figure), and the recessed portion and the handle are arranged side by side. When the recessed portion approximately matches the shape of the operator's index finger, the handle is arranged at a position where the operator's thumb can be hooked back. Such a setting can improve the operating speed and meet the requirements of ergonomics.

Claims (10)

1. a sewing machine, including sewing platform and the sewing needle being located on described sewing platform, described sewing needle can move back and forth in the height direction, performs sewing work；

It is characterized in that: described sewing machine also includes being positioned at stopping plate and connecting described obstruction plate and the support means of described sewing platform of described sewing needle side；

Described obstruction plate is arranged on described sewing platform by described support means, and described obstruction plate also can be reserved with between described obstruction plate and described sewing platform for the gap by fabric to be sewed along the radial motion of described sewing platform table top.

Sewing machine the most according to claim 1, it is characterized in that: described support means includes fixing, with described sewing platform, the rotary shaft being connected, described rotary shaft can rotate along own axes, and the side of described obstruction plate is connected with described rotary shaft, and described obstruction plate can rotate with described rotary shaft.

Sewing machine the most according to claim 2, it is characterised in that: described support means also includes fixing the fixing axle being connected with described sewing platform, and the side that described obstruction plate is not connected with described rotary shaft is connected by extension spring with described fixing axle.

Sewing machine the most according to claim 1, it is characterised in that: limit assembly that at least two shafts in translation that described support means includes with described obstruction plate is connected are connected with described translation shaft and be arranged at intervals at the first fixed plate above described sewing platform table top；

Described first fixed plate is provided with and one to one first through hole identical with described translation shaft quantity, described translation shaft is through corresponding described first through hole, and can translate in the diameter range of described first through hole, described limit assembly is used for preventing described translation shaft from departing from described first through hole.

Sewing machine the most according to claim 4, it is characterized in that: described limit assembly include being located at the first spacer of each first through hole upper end, described first spacer diameter more than the diameter of described first through hole, described translation shaft is connected with described first spacer.

Sewing machine the most according to claim 5, it is characterized in that: described support means also includes being arranged at intervals at the second fixed plate above described first fixed plate, described second fixed plate is provided with and one to one second through hole identical with described first number of openings；

Described support means also includes the second spacer being located at second any one end of through hole, and the diameter of described second spacer and is connected through described second through hole with described second spacer more than the diameter of described second through hole, described translation shaft.

Sewing machine the most according to claim 6, it is characterised in that: described support means also includes the reset assembly being arranged between described first fixed plate and described second fixed plate, and described reset assembly is for recovering the described translation shaft after translation to initial position.

Sewing machine the most according to claim 7, it is characterized in that: described reset assembly includes N number of spring, described N is more than or equal to 3, all lateral walls with described translation shaft, one end of these springs are connected, the other end is relatively fixed with described first fixed plate, further, these ring springs are arranged around described translation shaft.

9. according to the sewing machine described in any one in claim 4 to 8, it is characterized in that: on the table top of described sewing platform, be additionally provided with and one to one third through-hole identical with described first number of openings, described translation shaft is through corresponding third through-hole, and can translate in the diameter range of described third through-hole, described limit assembly is additionally operable to prevent described translation shaft from departing from described third through-hole.

Sewing machine the most according to claim 1, it is characterised in that: described obstruction backboard is additionally provided with handle to the side of described sewing needle, and described handle is used for retracting described obstruction plate；

Described obstruction backboard is additionally provided with depressed part to the side of described sewing needle, and described depressed part is arranged side by side with described handle.