CN212241886U

CN212241886U - Screw extrusion feeding device in full-automatic injection molding machine

Info

Publication number: CN212241886U
Application number: CN202020126608.XU
Authority: CN
Inventors: 韩湘屏; 梁兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-12-29
Anticipated expiration: 2030-01-19

Abstract

The utility model discloses a screw rod extrusion feed arrangement among full-automatic injection molding machine, including bottom plate, screw rod, mount and casing, bottom plate upper end middle part is equipped with the backing plate, the symmetry is equipped with the slide rail around the backing plate upper end, casing left and right sides cover is equipped with the supporting seat, the supporting seat lower extreme is equipped with the slider, sliding connection between slider and the slide rail. The utility model has reasonable structural design, and is provided with the non-return mechanism, and further avoids the problem that the quality of the injection molding product is unstable because the melted material flows back at the front end of the screw rod on the basis of the non-return ring; the melting and stirring mechanism is arranged, so that the materials can be stirred and heated uniformly, and the influence on the injection molding quality caused by blockage in the process of entering the shell or in the process of rotating the screw rod in the shell is avoided; set up the scraper blade, be favorable to carrying out automatic clearance to stirring shell inside, avoid the melting material to be stained with and attach at stirring shell inner wall, influence the use of injection molding machine next time.

Description

Screw extrusion feeding device in full-automatic injection molding machine

Technical Field

The utility model relates to a mechanical equipment field specifically is a screw extrusion feed arrangement in full-automatic injection molding machine.

Background

An injection molding machine is also known as an injection molding machine or an injection machine. It is a main forming equipment for making various shaped plastic products from thermoplastic plastics or thermosetting plastics by using plastic forming mould. The device is divided into a vertical type, a horizontal type and a full-electric type. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.

The existing injection molding machine has the disadvantages that when materials are heated only by the heating element in the shell, the heating speed is low, the materials in the charging barrel are heated unevenly, the injection molding quality is affected, and the materials in the shell are possibly blocked; meanwhile, some injection molding machines only use a non-return ring as a non-return device, and because the non-return ring has insufficient closing function and sealing property, the molten material at the front end of the screw rod is easy to reflow, so that the quality of injection molding products is unstable.

Accordingly, those skilled in the art have provided a screw extrusion feeding apparatus in a fully automatic injection molding machine to solve the problems set forth in the background art described above.

Disclosure of Invention

An object of the utility model is to provide a screw extrusion feed arrangement in full-automatic injection molding machine to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a screw extrusion feeding device in a full-automatic injection molding machine comprises a bottom plate, a screw, a fixing frame and a shell, wherein a base plate is arranged in the middle of the upper end of the bottom plate, slide rails are symmetrically arranged at the front and back of the upper end of the base plate, supporting seats are sleeved on the left side and the right side of the shell, a slide block is arranged at the lower end of each supporting seat, the slide blocks are in sliding connection with the slide rails, a supporting frame is arranged on the left side of the upper end of the bottom plate, an injection molding hole is formed in the middle of the upper side of the supporting frame, a fixing seat is arranged on the lower; a fixed table is arranged on the right side of the upper end of the shell, a melting and stirring mechanism is arranged in the middle of the fixed table, a visible window is arranged on the front side wall of the melting and stirring mechanism, the lower end of the melting and stirring mechanism extends into the shell, the inner wall of the shell is provided with a first heating layer, a first heating pipe is arranged in the first heating layer, an injection molding pipe is arranged in the middle of the left side wall of the shell, the injection molding pipe and the injection molding hole are mutually corresponding in position, the right side of the upper end of the bottom plate is provided with a fixed frame, a first motor cover is arranged at the upper part of the right side wall of the fixing frame, a first motor is arranged in the first motor cover, the motor shaft of the first motor passes through the fixed frame and is connected with one end of a screw rod through a coupler, the other end of the screw rod passes through the middle part of the right side wall of the shell and is provided with a screw rod joint, the middle part of the side wall of the screw joint is provided with a non-return ring, and the screw joint is internally provided with a non-return mechanism.

As a further aspect of the present invention: the non-return mechanism comprises a first communicating pipe, a circulation groove, a steel ball and a second communicating pipe, the circulation groove is arranged in the middle of the inner side of the screw joint, the first communicating pipe is symmetrically arranged on the left side of the circulation groove from top to bottom, the second communicating pipe is symmetrically arranged on the right side of the circulation groove from top to bottom, and the steel ball is arranged in the middle of the circulation groove.

As a further aspect of the present invention: the melting and stirring mechanism comprises a stirring shell, a feed hopper and a stirring shaft, the stirring shell is arranged in the middle of the inner side of the fixed platform, the inner wall of the stirring shell is provided with a second heating layer, a second heating pipe is arranged in the second heating layer, a feed hopper is arranged on the right side of the upper end of the stirring shell, a second motor cover is arranged in the middle of the upper end of the stirring shell, a second motor is arranged in the second motor cover, a motor shaft of the second motor penetrates through the stirring shell and is connected with one end of the stirring shaft through a coupling, stirring blades are symmetrically arranged on the left and the right of the stirring shaft, supporting rods are symmetrically arranged on the upper and the lower sides of the side wall of the stirring shaft, a scraping plate is arranged at the end part of the supporting rod, the scraping plate is connected with the inner wall of the second heating layer in a sliding way, a conical disc is arranged at the lower end of the stirring shaft, the stirring shell lower extreme middle part is equipped with the discharging pipe, the discharging pipe middle part is equipped with the solenoid valve, the discharging pipe extends to inside the casing.

As a further aspect of the present invention: the slide rail both sides tip all is equipped with the stopper.

As a further aspect of the present invention: and the side wall of the visible window is provided with a scale strip.

As a further aspect of the present invention: the hydraulic cylinder is XBYG in model, the first motor and the second motor are YD160L-4/2 in model, and the electromagnetic valve is ZCB-1/200Hz in model.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model has reasonable structural design, and is provided with the non-return mechanism, and further avoids the problem that the quality of the injection molding product is unstable because the melted material flows back at the front end of the screw rod on the basis of the non-return ring; the melting and stirring mechanism is arranged, so that the materials can be stirred and heated uniformly, and the influence on the injection molding quality caused by blockage in the process of entering the shell or in the process of rotating the screw rod in the shell is avoided; set up the scraper blade, be favorable to carrying out automatic clearance to stirring shell inside, avoid the melting material to be stained with and attach at stirring shell inner wall, influence the use of injection molding machine next time.

Drawings

Fig. 1 is a schematic structural diagram of a screw extrusion feeding device in a full-automatic injection molding machine.

Fig. 2 is a schematic structural diagram of a screw extrusion feeding device A in a full-automatic injection molding machine.

Fig. 3 is a schematic structural diagram of a melting and stirring mechanism in a screw extrusion feeding device in a full-automatic injection molding machine.

In the figure: the device comprises a bottom plate 1, a backing plate 2, a sliding rail 3, a sliding block 4, a hydraulic cylinder 5, a limiting block 6, a fixed seat 7, a supporting frame 8, an injection molding hole 9, an injection molding pipe 10, a non-return mechanism 11, a first communicating pipe 1101, a flow groove 1102, a steel ball 1103, a second communicating pipe 1104, a screw joint 12, a first heating layer 13, a first heating pipe 14, a supporting seat 15, a melting and stirring mechanism 16, a stirring shell 1601, a feeding hopper 1602, a second motor cover 1603, a second motor 1604, a scraping plate 1605, a supporting rod 1606, a stirring shaft 1607, a stirring blade 1608, a conical disc 1609, a discharging pipe 1610, an electromagnetic valve 1611, a second heating pipe 1612, a second heating layer 1613, a visible window 17, a fixed platform 18, a shell 19, a fixed frame 20, a first motor 21, a first motor cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, in the embodiment of the present invention, a screw extrusion feeding device in a full-automatic injection molding machine includes a bottom plate 1, a screw 23, a fixing frame 20 and a casing 19, wherein a base plate 2 is arranged in the middle of the upper end of the bottom plate 1, slide rails 3 are symmetrically arranged on the front and back of the upper end of the base plate 2, a support seat 15 is sleeved on each of the left and right sides of the casing 19, a slider 4 is arranged at the lower end of the support seat 15, the slider 4 is slidably connected with the slide rails 3, a support frame 8 is arranged on the left side of the upper end of the bottom plate 1, an injection molding hole 9 is arranged in the middle of the upper side of the support frame 8, a fixing seat 7 is arranged on the lower portion of the right side; the right side of the upper end of the shell 19 is provided with a fixed table 18, the middle of the fixed table 18 is provided with a melting and stirring mechanism 16, the front side wall of the melting and stirring mechanism 16 is provided with a visible window 17, the lower end of the melting and stirring mechanism 16 extends into the shell 19, the inner wall of the shell 19 is provided with a first heating layer 13, the inside of the first heating layer 13 is provided with a first heating pipe 14, the middle of the left side wall of the shell 19 is provided with an injection molding pipe 10, the positions between the injection molding pipe 10 and an injection molding hole 9 correspond to each other, the right side of the upper end of the bottom plate 1 is provided with a fixed frame 20, the upper part of the right side wall of the fixed frame 20 is provided with a first motor cover 22, the inside of the first motor cover 22 is provided with a first motor 21, the motor shaft of the first motor 21 passes through the fixed frame 20 and is connected, and a non-return ring 24 is arranged in the middle of the side wall of the screw joint 12, and a non-return mechanism 11 is arranged in the screw joint 12.

The non-return mechanism 11 includes a first communicating pipe 1101, a flow groove 1102, a steel ball 1103 and a second communicating pipe 1104, the flow groove 1102 is disposed in the middle of the inner side of the screw joint 12, the first communicating pipe 1101 is disposed on the left side of the flow groove 1102 in an up-down symmetrical manner, the second communicating pipe 1104 is disposed on the right side of the flow groove 1102 in an up-down symmetrical manner, and the steel ball 1103 is disposed in the middle of the flow groove 1102.

The melting stirring mechanism 16 comprises a stirring shell 1601, a feeding hopper 1602 and a stirring shaft 1607, wherein the stirring shell 1601 is arranged in the middle of the inner side of a fixed table 18, the inner wall of the stirring shell 1601 is provided with a second heating layer 1613, a second heating pipe 1612 is arranged inside the second heating layer 1613, the feeding hopper 1602 is arranged on the right side of the upper end of the stirring shell 1601, a second motor cover 1603 is arranged in the middle of the upper end of the stirring shell 1601, a second motor 1604 is arranged inside the second motor cover 1603, a motor shaft of the second motor 1604 penetrates through the stirring shell 1601 and is connected with one end of a stirring shaft 1607 through a coupling, stirring blades 1608 are symmetrically arranged on the left and right of the stirring shaft 1607, supporting rods 1606 are symmetrically arranged on the side wall of the stirring shaft 1607 in the vertical direction, a scraping plate 1605 is arranged at the end part of the supporting rods 1606, a sliding connection is arranged between the scraping plate 1605 and the inner wall, a solenoid valve 1611 is disposed in the middle of the discharge pipe 1610, and the discharge pipe 1610 extends to the inside of the housing 19.

The end parts of the two sides of the sliding rail 3 are respectively provided with a limiting block 6.

The side wall of the visible window 17 is provided with a scale strip.

The type of the hydraulic cylinder 5 is XBYG, the types of the first motor 21 and the second motor 1604 are YD160L-4/2, and the type of the electromagnetic valve 1611 is ZCB-1/200 Hz.

The utility model discloses a theory of operation is:

the utility model relates to a screw extrusion feed arrangement in full-automatic injection molding machine, get into stirring shell 1601 with the material through feeder hopper 1602 of melting rabbling mechanism 16 inside, later start second motor 1604 through external controller, the motor shaft of second motor 1604 passes through coupling joint (mixing) shaft 1607, (mixing) shaft 1607 drives scraper 1605, stirring blade 1608 and conical disk 1609 rotate, the second heating pipe 1612 of second zone of heating 1613 starts simultaneously, heat the stirring to the material, scraper 1605 is favorable to scraping the clearance to the material of stirring shell 1601 inner wall, avoid the trouble that needs clear up alone, the material after the stirring melting gets into inside casing 19 through discharging pipe 1610 and the control of solenoid valve 1611; then, the first motor 21 and the hydraulic cylinder 5 are started, the first motor 21 drives the screw 23 to rotate, the hydraulic cylinder 5 drives the supporting seat 15 to reciprocate left and right through the action of the sliding rail 3 and the sliding block 4, so that the shell 19 reciprocates left and right, when the material plasticized into a molten state is pushed by the rotating screw 23 to move forward, the material enters the cavity to be injected through a gap between the check ring 24 and the screw joint 12, when the screw 23 moves forward to start injection, the pressure of the molten material is increased due to the resistance of the injection pipe 10, the check ring 24 is pushed backward, the backflow of the molten material is prevented, but due to the insufficient closing function and sealing performance of the check ring 24, the molten material at the front end of the screw 23 is easy to backflow, and the quality of the injection molding product is unstable; the arrangement of the non-return mechanism 11 further increases the effect of preventing the backflow of the molten material, and when the molten material pushed and plasticized by the rotating screw 23 moves forward, the molten material passes through the hollow part of the non-return ring 24 and passes through the second communicating pipe 1104 and pushes the steel ball 1103, and then passes through the first communicating pipe 1101 through the gap between the steel ball 1103 and the flow groove 1102 and flows into the front part of the screw joint 12; when the screw 23 moves forward and starts injection, the pressure of the molten material at the screw joint 12 is increased due to the resistance of the injection pipe 10, and the steel ball 1103 is pushed back to the connection between the flow channel 1102, the first communication pipe 1101 and the second communication pipe 1104 by the pressure of the molten material, so that the backflow port of the molten material is sealed, the backflow of the molten material is prevented, and the problem that the quality of the injection product is unstable due to backflow of the molten material at the front end of the screw 23 is further avoided.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a screw extrusion feed arrangement in full-automatic injection molding machine, includes bottom plate (1), screw rod (23), mount (20) and casing (19), its characterized in that: the middle part of the upper end of the bottom plate (1) is provided with a base plate (2), the front and back of the upper end of the base plate (2) are symmetrically provided with slide rails (3), the left side and the right side of the shell (19) are sleeved with supporting seats (15), the lower end of each supporting seat (15) is provided with a slide block (4), the slide blocks (4) are in sliding connection with the slide rails (3), the left side of the upper end of the bottom plate (1) is provided with a supporting frame (8), the middle part of the upper side of the supporting frame (8) is provided with an injection molding hole (9), the lower part of the right side wall of the supporting frame (8) is provided with a fixing seat (7), the middle part of the right side wall; the utility model discloses a heating device, including casing (19), fixed station (18) middle part is equipped with melting rabbling mechanism (16), the lateral wall is equipped with visual window (17) before melting rabbling mechanism (16), melting rabbling mechanism (16) lower extreme extends to inside casing (19), casing (19) inner wall is equipped with first zone of heating (13), inside first heating pipe (14) of being equipped with of first zone of heating (13), casing (19) left side wall middle part is equipped with injection molding pipe (10), the position between injection molding pipe (10) and injection molding hole (9) corresponds each other, bottom plate (1) upper end right side is equipped with mount (20), mount (20) right side wall upper portion is equipped with first motor cover (22), inside first motor (21) of being equipped with of first motor cover (22), the motor shaft of first motor (21) passes mount (20) and passes through the one end of shaft coupling connection screw rod (23), the other end of the screw rod (23) penetrates through the middle part of the right side wall of the shell (19) and is provided with a screw rod joint (12), the middle part of the side wall of the screw rod joint (12) is provided with a non-return ring (24), and a non-return mechanism (11) is arranged inside the screw rod joint (12).

2. The screw extrusion feeding device in the full-automatic injection molding machine according to claim 1, characterized in that: the non-return mechanism (11) comprises a first communicating pipe (1101), a circulation groove (1102), a steel ball (1103) and a second communicating pipe (1104), wherein the circulation groove (1102) is arranged in the middle of the inner side of the screw joint (12), the first communicating pipe (1101) is symmetrically arranged on the left side of the circulation groove (1102) up and down, the second communicating pipe (1104) is symmetrically arranged on the right side of the circulation groove (1102) up and down, and the steel ball (1103) is arranged in the middle of the circulation groove (1102).

3. The screw extrusion feeding device in the full-automatic injection molding machine according to claim 1, characterized in that: the melting stirring mechanism (16) comprises a stirring shell (1601), a feeding hopper (1602) and a stirring shaft (1607), wherein the stirring shell (1601) is arranged in the middle of the inner side of a fixed platform (18), the inner wall of the stirring shell (1601) is provided with a second heating layer (1613), a second heating pipe (1612) is arranged inside the second heating layer (1613), the feeding hopper (1602) is arranged on the right side of the upper end of the stirring shell (1601), a second motor cover (1603) is arranged in the middle of the upper end of the stirring shell (1601), a second motor (1604) is arranged inside the second motor cover (1603), a motor shaft of the second motor (1604) penetrates through the stirring shell (1601) and is connected with one end of the stirring shaft (1607) through a coupler, stirring blades (1608) are symmetrically arranged on the left and right sides of the stirring shaft (1607), supporting rods (1606) are symmetrically arranged on the side wall of the stirring shaft (1607) in the vertical direction, sliding connection between scraper blade (1605) and second zone of heating (1613) inner wall, (mixing) shaft (1607) lower extreme is equipped with tapered disc (1609), stirring shell (1601) lower extreme middle part is equipped with discharging pipe (1610), discharging pipe (1610) middle part is equipped with solenoid valve (1611), discharging pipe (1610) extend to inside casing (19).

4. The screw extrusion feeding device in the full-automatic injection molding machine according to claim 1, characterized in that: the end parts of the two sides of the sliding rail (3) are respectively provided with a limiting block (6).

5. The screw extrusion feeding device in the full-automatic injection molding machine according to claim 1, characterized in that: the side wall of the visible window (17) is provided with a scale strip.

6. The screw extrusion feeding device in the full-automatic injection molding machine according to claim 1, characterized in that: the type of the first motor (21) and the type of the second motor (1604) are YD160L-4/2, and the type of the electromagnetic valve (1611) is ZCB-1/200 Hz.