Injection molding machine with double injection molding ports

Abstract

The utility model discloses an injection molding machine with double injection molding ports, which comprises a rack, an injection molding machine body is arranged at one end of the rack, an exhaust charging barrel is arranged at the upper end of the injection molding machine body, an air inlet pipe and a discharge pipe are arranged at the lower end of the exhaust charging barrel, and the exhaust charging barrel is communicated with the inside of the injection molding machine body through the air inlet pipe and the discharge pipe. An air outlet pipe is arranged at the upper end of the exhaust charging barrel, a driving rod is arranged in the exhaust charging barrel, an extrusion screw blade is arranged on the driving rod, a driving motor is arranged at one end of the exhaust charging barrel, the output end of the driving motor is matched with the driving rod, and a storage bin is arranged at one end of the injection molding machine body; a first injection molding pipe and a second injection molding pipe are arranged at one end of the storage bin, a shaping mechanism is arranged at one end of the first injection molding pipe and one end of the second injection molding pipe, a storage pipe is arranged at one end of the first injection molding pipe and one end of the second injection molding pipe, a baffle plate is arranged in the storage pipe, and the first injection molding pipe and the second injection molding pipe are both matched with the baffle plate. The equipment is higher in product quality and better in production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, and more specifically, to an injection molding machine with double injection ports. Background Art

[0002] Injection molding is a common equipment production technology in modern technology. It can directly produce plastic products with specific structures and is widely used in the production field.

[0003] When a common injection molding machine is working, it will pass the heated and molten injection molding raw materials into the injection molding equipment, and then inject the raw materials into the mold through the injection molding equipment to complete the injection molding. However, in the actual feeding process, the raw materials are heated and the temperature rises, and the water inside them may evaporate into gas. If the gas is not completely discharged during the transportation process, resulting in some gas remaining in the raw materials for injection molding, bubbles may remain in the injection molded product, affecting the quality of the finished product; moreover, common injection molding equipment generally has only a single injection port. When working, the speed of single-port injection is limited and the efficiency is not high. Under long-term operation, the injection port may be blocked due to the solidification of the raw material temperature drop, affecting the use of the equipment and easily causing damage to the inside of the equipment; in addition, after the injection molding is completed, the product will not wait until it is completely cooled, and will have residual heat. At this time, the temperature of the product is still high, which is inconvenient for workers to directly contact and operate, affecting work efficiency. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the problems existing in the prior art, the utility model provides an injection molding machine with double injection ports to solve the technical problem mentioned in the background technology that the injection molding machine has a simple structure but is inconvenient to use.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-injection-port injection molding machine, comprising a frame, an injection molding machine body is arranged at one end of the frame, an exhaust barrel is arranged at the upper end of the injection molding machine body, an air inlet pipe and a discharge pipe are arranged at the lower end of the exhaust barrel, and the exhaust barrel is connected with the injection molding machine body through the air inlet pipe and the discharge pipe, an air outlet pipe is arranged at the upper end of the exhaust barrel, a driving rod is arranged in the exhaust barrel, an extrusion screw blade is arranged on the driving rod, a driving motor is arranged at one end of the exhaust barrel, and the output end of the driving motor cooperates with the driving rod;

[0008] A material storage bin is provided at one end of the injection molding machine body, a first injection molding tube and a second injection molding tube are provided at one end of the material storage bin, a shaping mechanism is provided at one end of the first injection molding tube and the second injection molding tube, a storage tube is provided at one end of the first injection molding tube and the second injection molding tube, a baffle is provided in the storage tube, and the first injection molding tube and the second injection molding tube both cooperate with the baffle.

[0009] The utility model is further configured that a loading frame is provided at the lower end of the shaping mechanism, a vent hole is opened on the loading frame, and a fan is provided beside the loading frame to provide a cooling effect.

[0010] The utility model is further configured as follows: the shaping mechanism includes a fixed mold and a movable mold, the first injection tube and the second injection tube are connected to the fixed mold, an electric push rod is provided at one end of the frame, the output end of the electric push rod cooperates with the movable mold, and the movable mold cooperates with the fixed mold to provide a molding structure.

[0011] The utility model is further configured that a push rod is provided on the frame, and an ejector rod is provided in the movable mold, and the push rod cooperates with the ejector rod to facilitate product demoulding.

[0012] The utility model is further configured such that a movable cavity is opened in the movable mold, a sliding ring is provided on the ejector rod, the sliding ring is slidably matched with the movable cavity, a return spring is provided in the movable cavity, the return spring cooperates with the sliding ring, so as to avoid the ejection structure affecting the quality of the injection molded product.

[0013] The utility model is further configured that a one-way check valve is provided on the discharge pipe to ensure stable movement of the raw materials.

[0014] The utility model is further configured that a movable plate is provided at one end of the shielding plate, a pulling rod is provided at one end of the movable plate, and the movable plate and the pulling rod are slidably matched with the storage tube to facilitate the control of the shielding plate.

[0015] The utility model is further configured such that a tightening spring is provided in the storage tube, the pulling rod is rotationally matched with the movable plate, a limiting block is provided on the pulling rod, an obstruction block is provided in the storage tube, and the limiting block cooperates with the obstruction block to stabilize the position of the shielding plate.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a double injection port injection molding machine, which has the following beneficial effects:

[0018] 1. The raw materials are transported through the injection molding machine body, and the exhaust structure is provided by setting the exhaust barrel, and the exhaust barrel and the injection molding machine body are connected through the air inlet pipe. When the injection molding machine body transports the raw materials, the internal conveying structure will squeeze the raw materials, so that the gas in the raw materials will enter the exhaust barrel from the air inlet pipe and be discharged from the equipment after leaving the raw materials. There is no need to worry about the leakage of raw materials. The raw materials entering the exhaust barrel will flow back into the injection molding machine body from the discharge pipe under the extrusion and conveying of the extrusion screw blade, thereby discharging the residual gas in the raw materials, avoiding the generation of bubbles, and ensuring the quality of injection molded products.

[0019] 2. The discharge bin is used as a turnover for diversion. The first injection tube and the second injection tube cooperate to form two groups of injection port structures. Injection molding can be performed simultaneously from two positions, thereby improving injection molding efficiency. The storage tube and the baffle plate cooperate to form a control structure to control the working status of the first injection tube and the second injection tube, thereby meeting the use requirements in different situations. When one group of injection ports is blocked, the equipment can still work normally.

[0020] 3. The injection molded products are collected by loading frames, and airflow is provided by fans. The airflow passes through the loading frames through the vents, so that the fans generate airflow to cool the collected products. Workers do not need to frequently touch the products with their hands. Without affecting the injection molding process, workers can wait until the products are completely cooled before touching them, which is convenient for workers to operate and ensures production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front structure of a double injection port injection molding machine in the utility model;

[0022] Figure 2 This is a schematic diagram of the matching structure of the injection molding machine body and the loading frame on the frame of the utility model;

[0023] Figure 3 This is a cross-sectional view of the internal matching structure of the injection molding machine body and the exhaust barrel in the utility model;

[0024] Figure 4 This is a cross-sectional view of the cooperation structure between the second injection tube and the storage tube and the shielding plate in the utility model;

[0025] Figure 5 It is a cross-sectional view of the cooperation structure between the interior of the movable mold and the ejector rod in the utility model.

[0026] In the figure: 1. frame; 2. injection molding machine body; 3. exhaust barrel; 4. air inlet pipe; 5. discharge pipe; 6. air outlet pipe; 7. drive rod; 8. extrusion screw blade; 9. drive motor; 10. storage bin; 11. first injection molding tube; 12. second injection molding tube; 13. storage tube; 14. baffle plate; 15. loading frame; 16. vent hole; 17. fan; 18. fixed mold; 19. movable mold; 20. electric push rod; 21. push rod; 22. ejector rod; 23. movable cavity; 24. sliding ring; 25. reset spring; 26. one-way check valve; 27. movable plate; 28. pull rod; 29. ​​tightening spring; 30. limit block; 31. obstruction block. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0030] See also Figure 1-5 A double-injection-port injection molding machine comprises a frame 1, an injection molding machine body 2 is arranged at one end of the frame 1, an exhaust barrel 3 is arranged at the upper end of the injection molding machine body 2, an air inlet pipe 4 and a discharge pipe 5 are arranged at the lower end of the exhaust barrel 3, and the exhaust barrel 3 is connected with the injection molding machine body 2 through the air inlet pipe 4 and the discharge pipe 5, an air outlet pipe 6 is arranged at the upper end of the exhaust barrel 3, a driving rod 7 is arranged in the exhaust barrel 3, an extrusion screw blade 8 is arranged on the driving rod 7, a driving motor 9 is arranged at one end of the exhaust barrel 3, and the output end of the driving motor 9 cooperates with the driving rod 7;

[0031] A material storage bin 10 is provided at one end of the injection molding machine body 2, a first injection molding tube 11 and a second injection molding tube 12 are provided at one end of the material storage bin 10, a shaping mechanism is provided at one end of the first injection molding tube 11 and the second injection molding tube 12, a storage tube 13 is provided at one end of the first injection molding tube 11 and the second injection molding tube 12, a baffle plate 14 is provided in the storage tube 13, and the first injection molding tube 11 and the second injection molding tube 12 are both matched with the baffle plate 14.

[0032] In this embodiment, the injection molding machine body 2 is operated by the support of the frame 1, and the heated and melted injection molding raw materials are placed in the equipment for injection molding. When the injection molding raw materials pass through the injection molding machine body 2, due to the extrusion of the internal transmission structure, the gas in the raw materials will enter the exhaust barrel 3 from the air inlet pipe 4, and the gas in the raw materials will be discharged. In addition, when exhausting, if part of the raw materials also enter the exhaust barrel 3 through the air inlet pipe 4, the drive motor 9 is controlled to work, so that the drive motor 9 drives the drive rod 7 to rotate, thereby driving the internal extrusion screw blade 8 to rotate, pushing the raw materials forward, and making the raw materials flow back to the injection molding machine body 2 from the discharge pipe 5, and squeezing the gas in the raw materials during the transmission process.

[0033] More specifically, when injection molding is performed, the injection molding machine body 2 delivers the raw material into the storage bin 10, and through the cooperation of the first injection molding tube 11 and the second injection molding tube 12, the raw material is injected into the molding mechanism at the same time, so that the raw material is molded in the molding mechanism. The first injection molding tube 11 and the second injection molding tube 12 work synchronously to improve the efficiency of injection molding. By controlling the baffle plate 14, the baffle plate 14 slides in the storage tube 13, and cooperates with the first injection molding tube 11 and the second injection molding tube 12 to block the first injection molding tube 11 or the second injection molding tube 12 for working switching.

[0034] See also Figure 1 and Figure 2 As an implementation method for cooling the waste heat: a loading frame 15 is provided at the lower end of the shaping mechanism, a vent hole 16 is opened on the loading frame 15, and a fan 17 is provided next to the loading frame 15.

[0035] Specifically, the material shaped in the shaping mechanism will fall into the loading frame 15 after leaving the shaping mechanism, and the fan 17 will be started to blow air toward the loading frame 15. The air flow will pass through the vent 16 to cool the material product and cool the residual heat.

[0036] Please refer to Figure 1 As a further implementation of the shaping mechanism: the shaping mechanism includes a fixed mold 18 and a movable mold 19, the first injection tube 11 and the second injection tube 12 are connected to the fixed mold 18, an electric push rod 20 is provided at one end of the frame 1, the output end of the electric push rod 20 cooperates with the movable mold 19, and the movable mold 19 cooperates with the fixed mold 18.

[0037] Specifically, when injecting the molding material, the electric push rod 20 pushes the movable mold 19 to move, so that the movable mold 19 fits with the fixed mold 18 to form a molding space, and then the molding material is introduced into the space through the first injection tube 11 and the second injection tube 12.

[0038] Please refer to Figure 1 , Figure 2 and Figure 5As a further implementation of the shaping mechanism: a push rod 21 is provided on the frame 1, and an ejector rod 22 is provided in the movable mold 19, and the push rod 21 cooperates with the ejector rod 22.

[0039] Specifically, when the movable mold 19 is separated from the fixed mold 18, the push rod 21 will contact the ejector rod 22. As the movable mold 19 moves, the push rod 21 will apply force to the ejector rod 22 to eject the fixed rod, thereby demolding the product.

[0040] Please refer to Figure 5 As a further implementation of the shaping mechanism: a movable cavity 23 is opened in the movable mold 19, a sliding ring 24 is provided on the ejector rod 22, the sliding ring 24 and the movable cavity 23 are slidably matched, a return spring 25 is provided in the movable cavity 23, and the return spring 25 and the sliding ring 24 are matched.

[0041] Specifically, when the ejector rod 22 slides in the movable mold 19, it will drive the sliding ring 24 to move. The sliding ring 24 moves in the movable cavity 23 and is restricted by the movable cavity 23 to prevent the ejector rod 22 from separating from the movable mold 19. When the ejector rod 22 is not pressurized by the ejector rod 21, the return spring 25 will push the sliding ring 24 to reset the ejector rod 22, thereby ensuring the internal structure of the movable mold 19.

[0042] Please refer to Figure 3 As a further implementation of the discharge pipe: a one-way check valve 26 is provided on the discharge pipe 5.

[0043] Specifically, the one-way check valve 26 is used to restrict the material in the injection molding machine body 2 from flowing from the discharge pipe 5 into the exhaust barrel 3 .

[0044] Please refer to Figure 4 As a further implementation of the shielding plate: a movable plate 27 is provided at one end of the shielding plate 14, and a pulling rod 28 is provided at one end of the movable plate 27. The movable plate 27 and the pulling rod 28 are slidably matched with the storage tube 13.

[0045] Specifically, by controlling the pulling rod 28 , the pulling rod 28 drives the movable plate 27 to move, and the movable plate 27 drives the shielding plate 14 to move, thereby controlling the state of the shielding plate 14 .

[0046] Please refer to Figure 4 As a further implementation of the shielding plate: a tightening spring 29 is provided in the storage tube 13, the pulling rod 28 is rotatably matched with the movable plate 27, a limit block 30 is provided on the pulling rod 28, and an obstruction block 31 is provided in the storage tube 13, and the limit block 30 cooperates with the obstruction block 31.

[0047] Specifically, pressure is applied to the movable plate 27 through the top spring so that the baffle plate 14 remains stable when blocking the first injection tube 11 and the second injection tube 12, and when the baffle plate 14 is pulled by the pull rod 28, when the pull rod 28 is pulled to the outermost part, the pull rod 28 is rotated to make the limit block 30 cooperate with the obstruction block 31, and the movement of the limit block 30 is blocked by the obstruction block 31, thereby ensuring that the baffle plate 14 is located in the storage tube 13.

[0048] In summary, when the overall equipment is in use (or running):

[0049] With the support of the frame 1, the injection molding machine body 2 is put into operation, the equipment is connected to an external power supply, the heated and melted injection molding raw materials are placed in the equipment, and injection molding is performed through the injection molding machine body 2. When the injection molding raw materials pass through the injection molding machine body 2, due to the extrusion of the internal transmission structure, the gas in the raw materials will enter the exhaust barrel 3 from the air inlet pipe 4, and the gas in the raw materials will be discharged. In addition, during exhaust, if part of the raw materials also enter the exhaust barrel 3 through the air inlet pipe 4, the drive motor 9 is controlled to work, so that the drive motor 9 drives the drive rod 7 to rotate, thereby driving the internal extrusion screw blade 8 to rotate, pushing the raw materials forward, so that the raw materials flow from the discharge pipe 5 to the injection molding machine body 2, and the gas in the raw materials is squeezed during the transmission process. Moreover, the one-way check valve 26 is used to limit the material in the injection molding machine body 2 from the discharge pipe 5 to the exhaust barrel 3.

[0050] During injection molding, the injection molding machine body 2 delivers the raw material into the storage bin 10, and through the cooperation of the first injection molding tube 11 and the second injection molding tube 12, the raw material is injected into the molding mechanism at the same time, so that the raw material is molded in the molding mechanism. The first injection molding tube 11 and the second injection molding tube 12 work synchronously to improve the efficiency of injection molding. By controlling the baffle plate 14, the baffle plate 14 slides in the storage tube 13 and cooperates with the first injection molding tube 11 and the second injection molding tube 12 to block the first injection molding tube 11 or the second injection molding tube 12 for switching work. By controlling the pull rod 28, the pull rod 28 drives the movable plate 27 to move, thereby The baffle plate 14 is driven to move by the movable plate 27 to control the state of the baffle plate 14. When the baffle plate 14 blocks the first injection tube 11 or the second injection tube 12, the top spring applies pressure to the movable plate 27 to keep the baffle plate 14 stable when blocking the first injection tube 11 and the second injection tube 12. When the baffle plate 14 is pulled by the pull rod 28, when the pull rod 28 is pulled to the outermost part, the limit block 30 is matched with the obstruction block 31 by rotating the pull rod 28, and the movement of the limit block 30 is blocked by the obstruction block 31, thereby ensuring that the baffle plate 14 is located in the storage tube 13, and different switches are performed to meet usage requirements.

[0051] When injecting the material, the electric push rod 20 pushes the movable mold 19 to move, so that the movable mold 19 fits with the fixed mold 18 to form a shaping space, and then the injection material is introduced into the space through the first injection tube 11 and the second injection tube 12. When the movable mold 19 is separated from the fixed mold 18, the push rod 21 will contact the ejector rod 22. As the movable mold 19 moves, the push rod 21 will apply force to the ejector rod 22 to eject the fixed rod, thereby demoulding the product. When the ejector rod 22 slides in the movable mold 19, it will drive the sliding ring 2 4 moves, the sliding ring 24 moves in the active cavity 23, and is restricted by the active cavity 23 to prevent the ejector rod 22 from being separated from the active mold 19, and when the ejector rod 22 is not pressed by the ejector rod 21, the reset spring 25 will push the sliding ring 24 to reset the ejector rod 22 to ensure the internal structure of the active mold 19. After the product is separated from the shaping mechanism, it will fall into the loading frame 15, and the fan 17 will be started to blow air toward the loading frame 15. The air flow will pass through the vent hole 16 to cool the material product and cool the residual heat.

[0052] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A double injection port injection molding machine, comprising a frame (1), characterized in that: An injection molding machine body (2) is provided at one end of the frame (1), an exhaust barrel (3) is provided at the upper end of the injection molding machine body (2), an air inlet pipe (4) and an outlet pipe (5) are provided at the lower end of the exhaust barrel (3), and the exhaust barrel (3) is connected with the injection molding machine body (2) through the air inlet pipe (4) and the outlet pipe (5), an air outlet pipe (6) is provided at the upper end of the exhaust barrel (3), a driving rod (7) is provided in the exhaust barrel (3), an extrusion screw blade (8) is provided on the driving rod (7), and a driving motor (9) is provided at one end of the exhaust barrel (3), and the output end of the driving motor (9) cooperates with the driving rod (7); A material storage bin (10) is provided at one end of the injection molding machine body (2); a first injection molding tube (11) and a second injection molding tube (12) are provided at one end of the material storage bin (10); a shaping mechanism is provided at one end of the first injection molding tube (11) and the second injection molding tube (12); a storage tube (13) is provided at one end of the first injection molding tube (11) and the second injection molding tube (12); a baffle plate (14) is provided inside the storage tube (13); and the first injection molding tube (11) and the second injection molding tube (12) are both matched with the baffle plate (14).

2. A double injection port injection molding machine according to claim 1, characterized in that: A loading frame (15) is provided at the lower end of the shaping mechanism, a vent hole (16) is provided on the loading frame (15), and a fan (17) is provided beside the loading frame (15).

3. The double-injection-port injection molding machine according to claim 1, characterized in that: The shaping mechanism comprises a fixed mold (18) and a movable mold (19); the first injection molding tube (11) and the second injection molding tube (12) are connected to the fixed mold (18); an electric push rod (20) is provided at one end of the frame (1); the output end of the electric push rod (20) cooperates with the movable mold (19); and the movable mold (19) cooperates with the fixed mold (18).

4. A double injection port injection molding machine according to claim 3, characterized in that: The frame (1) is provided with a push rod (21), the movable mold (19) is provided with an ejector rod (22), and the push rod (21) cooperates with the ejector rod (22).

5. A double injection port injection molding machine according to claim 4, characterized in that: A movable cavity (23) is provided in the movable mold (19), a sliding ring (24) is provided on the ejector rod (22), the sliding ring (24) and the movable cavity (23) are slidably matched, a return spring (25) is provided in the movable cavity (23), and the return spring (25) and the sliding ring (24) are matched.

6. The double-injection-port injection molding machine according to claim 1, characterized in that: The discharge pipe (5) is provided with a one-way check valve (26).

7. The double-injection-port injection molding machine according to claim 1, characterized in that: A movable plate (27) is provided at one end of the shielding plate (14), a pulling rod (28) is provided at one end of the movable plate (27), and the movable plate (27) and the pulling rod (28) are slidably matched with the storage tube (13).

8. The double-injection-port injection molding machine according to claim 7, characterized in that: A tensioning spring (29) is provided in the storage tube (13), the pulling rod (28) is rotationally matched with the movable plate (27), a limiting block (30) is provided on the pulling rod (28), an obstruction block (31) is provided in the storage tube (13), and the limiting block (30) cooperates with the obstruction block (31).

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