Injection molding pusher device

Abstract

The utility model discloses an injection molding pusher device, which belongs to the field of injection molding technology, and aims to solve the problem that the prior art lacks a mechanism for cleaning the pusher tube after the pusher tube is finished, and the hot-melt plastic will block the pusher tube after cooling, causing the speed of the hot-melt plastic injected into the mold cavity to decrease, or even completely block the pusher tube, resulting in a decrease in production efficiency. It includes a workbench, and a plurality of groups of support rods are installed on the upper surface of the workbench. The upper ends of the support rods are connected to a box body, and a tube body is installed on the side of the box body. A cleaning component is engaged with the end of the tube body away from the box body, and the cleaning component is fixedly installed on the upper surface of the end of the workbench away from the support rod. The injection molding pusher device, through the arrangement of the cleaning component, can, on the one hand, block the tube body to prevent the hot-melt plastic from flowing out when not injecting, and on the other hand, clean the pusher tube to prevent plastic from remaining in the pusher tube, thereby ensuring the injection speed of the hot-melt plastic and ensuring production efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of injection molding, and in particular relates to an injection molding material pushing device. Background Art

[0002] Injection molding is a method of making plastic products of various shapes from thermoplastics or thermosetting materials using plastic molding molds. During injection molding, the plastic particles need to be hot-melted, and then a pushing device is used to push the hot-melt plastic into the closed mold cavity. The hot-melt plastic cools to form a finished product.

[0003] Under the prior art, there is a lack of a mechanism for cleaning the push tube after the pushing of the materials is completed, and hot-melt plastic will remain in the push tube. These hot-melt plastics will block the push tube after cooling, causing the speed of hot-melt plastic injection into the mold cavity to decrease, or even completely block the push tube, thereby reducing production efficiency. Therefore, a technical measure is proposed to solve the problem that there is a lack of a mechanism for cleaning the push tube after the pushing of the materials is completed, and the hot-melt plastic will block the push tube after cooling, causing the speed of hot-melt plastic injection into the mold cavity to decrease, or even completely block the push tube, thereby reducing production efficiency. Utility Model Content

[0004] (1) Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide an injection molding pushing device, which aims to solve the problem that the prior art lacks a mechanism for cleaning the push tube after the push is completed, and the hot-melt plastic will block the push tube after cooling, causing the speed of hot-melt plastic injection into the mold cavity to decrease, or even completely block the push tube, resulting in a decrease in production efficiency.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the utility model provides an injection molding pushing device, including a workbench, a plurality of support rods are installed on the upper surface of the workbench, the upper ends of the support rods are connected to a box body, a tube body is installed on the side of the box body, and a cleaning component is engaged with the end of the tube body away from the box body. The cleaning component is fixedly installed on the upper surface of the end of the workbench away from the support rod. Thanks to the setting of the cleaning component, on the one hand, the tube body can be sealed to prevent the hot-melt plastic from flowing out when no injection molding is performed, and on the other hand, the pushing tube can be cleaned to avoid plastic residue in the pushing tube, thereby ensuring the injection speed of the hot-melt plastic and ensuring production efficiency.

[0008] Furthermore, a feeding pipe is installed on the upper part of one end of the tube body close to the box body, and multiple groups of heating rods are installed inside the tube body. The tube body converges toward one end of the cleaning assembly, and a pushing pipe is provided at one end of the tube body away from the box body. A connecting rod is slidably passed through the side of the tube body, and an auger is installed on the connecting rod. The other end of the connecting rod is connected to a motor. Thanks to the setting of the auger, on the one hand, the plastic particles are driven to move toward the pushing pipe, and on the other hand, shear friction is generated between the auger and the plastic particles, thereby accelerating the hot melting of the plastic particles.

[0009] Furthermore, the motor is inside the box body, a slide plate is installed at the lower end of the motor, limit plates are provided on both sides of the slide plate, a push plate is connected to one end of the lower part of the slide plate, a first cylinder is connected to the lower part of the push plate, and the first cylinder is fixedly installed on the upper surface of the workbench.

[0010] Furthermore, a slide groove is provided at the lower part of the box body, the slide plate is slidably matched with the slide groove, and the limit plate is inside the box body.

[0011] Furthermore, the cleaning assembly includes a second cylinder, which is fixedly mounted on the upper surface of the workbench. The second cylinder is connected to a mounting plate, which is in sliding contact with the upper surface of the workbench. A third cylinder is mounted on the upper surface of the mounting plate. A sleeve is disposed outside the third cylinder, and a vertical plate is mounted outside the sleeve. Thanks to the arrangement of the second cylinder, the cleaning assembly is prevented from blocking the connection between the closed mold and the push tube.

[0012] Furthermore, the cleaning assembly also includes a round rod, which is fixedly connected to the side of the vertical plate. The end of the round rod away from the vertical plate is connected to a scraper. Thanks to the setting of the scraper, it is convenient to clean the push tube.

[0013] Furthermore, the scraper is slidably matched with the push tube, and the length of the round rod is the same as the depth of the push tube.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model can seal the tube body and prevent the hot-melt plastic from flowing out when no injection molding is performed through the setting of the cleaning component. On the other hand, the push tube can be cleaned to prevent the plastic from remaining in the push tube, thereby ensuring the injection speed of the hot-melt plastic and ensuring the production efficiency. The third cylinder is started to drive the collar to move away from the tube body. The movement of the collar drives the scraper to move. The movement of the scraper contacts the wall of the push tube to scrape off the cooled plastic. Subsequently, the second cylinder is started to drive the mounting plate to move away from the push tube. The movement of the mounting plate drives the third cylinder, the collar, the vertical plate, the round rod and the scraper to move. The setting of the second cylinder can prevent the cleaning component from blocking the connection between the closed mold and the push tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 Schematic diagram of the internal structure of the tube;

[0020] Figure 3 It is a schematic diagram of the box body structure when viewed from above;

[0021] Figure 4 is a schematic diagram of the connection structure between the first cylinder and the slide plate;

[0022] Figure 5 This is a schematic diagram of the cleaning component structure.

[0023] The markings in the accompanying drawings are: 1. workbench; 2. cleaning assembly; 3. pipe body; 4. feeding pipe; 5. box body; 6. support rod; 7. first cylinder; 8. push pipe; 9. connecting rod; 10. heating rod; 11. auger; 12. motor; 13. slide; 14. push plate; 15. limit plate; 16. slide plate; 201, second cylinder; 202, mounting plate; 203, collar; 204, vertical plate; 205, round rod; 206, scraper; 207, third cylinder. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] This specific embodiment is an injection molding pusher device, and its structural schematic diagram is as follows Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a workbench 1 is provided on the upper surface of the workbench 1 with multiple groups of support rods 6, the upper ends of the support rods 6 are connected to a box body 5, a tube body 3 is provided on the side of the box body 5, a cleaning assembly 2 is engaged at one end of the tube body 3 away from the box body 5, the cleaning assembly 2 is fixedly installed on the upper surface of the end of the workbench 1 away from the support rods 6, a feeding pipe 4 is provided on the upper part of one end of the tube body 3 close to the box body 5, multiple groups of heating rods 10 are provided inside the tube body 3, the tube body 3 converges toward one end of the cleaning assembly 2, a pushing pipe 8 is provided at one end of the tube body 3 away from the box body 5, and the tube A connecting rod 9 is slidably passed through the side of the body 3, and a screw dragon 11 is installed on the connecting rod 9. The other end of the connecting rod 9 is connected to a motor 12, and the motor 12 is inside the box body 5. A slide plate 16 is installed at the lower end of the motor 12, and limit plates 15 are provided on both sides of the slide plate 16. A push plate 14 is connected to one end of the lower part of the slide plate 16, and the lower part of the push plate 14 is connected to the first cylinder 7. The first cylinder 7 is fixedly installed on the upper surface of the workbench 1, and a slide groove 13 is opened at the lower part of the box body 5. The slide plate 16 is slidably adapted to the slide groove 13, and the limit plate 15 is inside the box body 5. During injection molding, plastic particles are added into the tube body 3 through the feeding tube 4, and the motor 12 and the heating rod 10 are started. The heating rod 10 is started to hot-melt the plastic particles inside the tube body 3, and the motor 12 is started to drive the connecting rod 9 to rotate, and the connecting rod 9 drives the auger 11 to rotate. The rotation of the auger 11 drives the plastic particles to move toward the pushing tube 8 on the one hand, and on the other hand, shear friction is generated between the auger 11 and the plastic particles. Under the heating cooperation with the heating rod 10, the plastic particles are gradually turned into a hot-melt state, and then the cleaning component 2 is started to release the blockage of the pushing tube 8, and the closed mold cavity is offset against the pushing tube 8, and then the first cylinder 7 is started to drive the push plate 14 to move horizontally, and the push plate 14 moves to drive the slide plate 16 and the limit plate 15 to move, and the slide plate 16 moves to drive the motor 12 to move, and the motor 12 moves to drive the connecting rod 9 to move, and the connecting rod 9 moves to drive the auger 11 to move, and the auger 11 moves to push the hot-melt plastic inside the tube body 3 into the closed mold cavity to complete the injection molding. After the injection molding is completed, the cleaning component 2 is restored to its original position.

[0026] Reference Figure 1 , Figure 2 , Figure 5As shown, the cleaning assembly 2 includes a second cylinder 201, which is fixedly mounted on the upper surface of the workbench 1, and the second cylinder 201 is connected to a mounting plate 202, which is in sliding contact with the upper surface of the workbench 1, and a third cylinder 207 is mounted on the upper surface of the mounting plate 202, and a sleeve 203 is provided on the outer sleeve of the third cylinder 207, and a vertical plate 204 is mounted outside the sleeve 203, and the cleaning assembly 2 also includes a round rod 205, which is fixedly connected to the side of the vertical plate 204, and a scraper 206 is connected to the end of the round rod 205 away from the vertical plate 204, and the scraper 206 is slidably adapted to the push tube 8, and the length of the round rod 205 is the same as the depth of the push tube 8, and the third cylinder 2 07 drives the collar 203 to move away from the tube body 3, the movement of the collar 203 drives the vertical plate 204 to move, the movement of the vertical plate 204 drives the round rod 205 to move, the movement of the round rod 205 drives the scraper 206 to move, the scraper 206 moves and contacts the wall of the push tube 8, then the second cylinder 201 is started to drive the mounting plate 202 to move away from the push tube 8, the movement of the mounting plate 202 drives the third cylinder 207, the collar 203, the vertical plate 204, the round rod 205, and the scraper 206 to prevent blocking the connection between the closed mold and the push tube 8, when the cleaning component 2 returns to its original position, the scraper 206 contacts the wall of the push tube 8 to push the hot melt plastic into the tube body 3.

[0027] Working principle: When pushing materials during injection molding, plastic particles are added into the tube body 3 through the feeding tube 4, and the motor 12 and the heating rod 10 are started. The heating rod 10 starts to heat-melt the plastic particles inside the tube body 3. The motor 12 starts to drive the connecting rod 9 to rotate, and the rotation of the connecting rod 9 drives the auger 11 to rotate. The rotation of the auger 11 drives the plastic particles to move toward the pushing tube 8 on the one hand, and on the other hand, shear friction is generated between the auger 11 and the plastic particles. Under the heating cooperation with the heating rod 10, the plastic particles are gradually turned into a hot-melt state;

[0028] Then, the cleaning assembly 2 is started to release the blockage of the push tube 8, and the third cylinder 207 is started to drive the collar 203 to move away from the tube body 3. The movement of the collar 203 drives the vertical plate 204 to move, and the movement of the vertical plate 204 drives the round rod 205 to move, and the movement of the round rod 205 drives the scraper 206 to move, and the scraper 206 moves to contact the wall of the push tube 8. Then, the second cylinder 201 is started to drive the mounting plate 202 to move away from the push tube 8, and the movement of the mounting plate 202 drives the third cylinder 207, the collar 203, the vertical plate 204, the round rod 205, and the scraper 206 to prevent the connection between the closed mold and the push tube 8 from being blocked;

[0029] The closed mold cavity is offset against the push tube 8 (not shown in the figure), and then the first cylinder 7 is started to drive the push plate 14 to move horizontally. The movement of the push plate 14 drives the slide plate 16 and the limit plate 15 to move. The movement of the slide plate 16 drives the motor 12 to move. The movement of the motor 12 drives the connecting rod 9 to move. The movement of the connecting rod 9 drives the auger 11 to move. The auger 11 moves to push the hot-melt plastic inside the tube body 3 into the closed mold cavity to complete the injection molding. After the injection molding is completed, the cleaning component 2 is restored to its original position. When the cleaning component 2 is restored to its original position, the scraper 206 contacts the wall of the push tube 8 to push the hot-melt plastic into the tube body 3 to prevent the push tube 8 from retaining hot-melt plastic. Through the setting of the cleaning component 2, on the one hand, the tube body 3 can be blocked, and on the other hand, the push tube 8 can be cleaned to prevent plastic from remaining in the push tube 8, thereby ensuring the injection speed of the hot-melt plastic and ensuring production efficiency.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An injection molding pusher device, comprising a workbench (1), characterized in that: A plurality of groups of support rods (6) are installed on the upper surface of the workbench (1); the upper ends of the support rods (6) are connected to a box body (5); a tube body (3) is installed on the side of the box body (5); a cleaning component (2) is engaged at one end of the tube body (3) away from the box body (5); and the cleaning component (2) is fixedly installed on the upper surface of the end of the workbench (1) away from the support rods (6).

2. The injection molding pusher device according to claim 1, characterized in that: A feeding pipe (4) is installed on the upper part of one end of the tube body (3) close to the box body (5), and multiple groups of heating rods (10) are installed inside the tube body (3). The tube body (3) converges toward one end of the cleaning component (2), and a pushing pipe (8) is provided at one end of the tube body (3) away from the box body (5). A connecting rod (9) is slidably passed through the side of the tube body (3), and a screw auger (11) is installed on the connecting rod (9). The other end of the connecting rod (9) is connected to a motor (12).

3. The injection molding pusher device according to claim 2, characterized in that: The motor (12) is inside the box body (5), a slide plate (16) is installed at the lower end of the motor (12), limit plates (15) are provided on both sides of the slide plate (16), one end of the lower part of the slide plate (16) is connected to a push plate (14), the lower part of the push plate (14) is connected to a first cylinder (7), and the first cylinder (7) is fixedly installed on the upper surface of the workbench (1).

4. The injection molding pusher device according to claim 3, characterized in that: A sliding groove (13) is provided at the lower part of the box body (5), the sliding plate (16) is slidably matched with the sliding groove (13), and the limiting plate (15) is inside the box body (5).

5. The injection molding pusher device according to claim 4, characterized in that: The cleaning assembly (2) comprises a second cylinder (201), the second cylinder (201) being fixedly mounted on the upper surface of the workbench (1), the second cylinder (201) being connected to a mounting plate (202), the mounting plate (202) being in sliding contact with the upper surface of the workbench (1), a third cylinder (207) being mounted on the upper surface of the mounting plate (202), the outer sleeve of the third cylinder (207) being provided with a collar (203), the outer sleeve of the collar (203) being provided with a vertical plate (204).

6. The injection molding pusher device according to claim 5, characterized in that: The cleaning assembly (2) further comprises a round rod (205), wherein the round rod (205) is fixedly connected to the side of the vertical plate (204), and one end of the round rod (205) away from the vertical plate (204) is connected to a scraper (206).

7. The injection molding pusher device according to claim 6, characterized in that: The scraper (206) is slidably matched with the push tube (8), and the length of the round rod (205) is the same as the depth of the push tube (8).

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