Material feeding mechanism of injection molding machine

Abstract

The utility model discloses a material feeding mechanism of an injection molding machine, which comprises a charging barrel, a screw mechanism for injection molding and feeding is arranged in an inner cavity of the charging barrel, a heating piece for melting materials is arranged on the surface of the charging barrel, and a material storage box is communicated with a feeding end at the top of the charging barrel. The top of the material storage box is communicated with a dust removal box through a filter plate mechanism, and feeding ports are formed in the two side faces of the dust removal box. According to the material feeding mechanism of the injection molding machine, plastic particles are fed into the inner cavity of the dust removal box through the feeding opening, the plastic particles can be stirred after a plurality of belt wheels are driven by a rotating rod to rotate, then dust attached to the plastic particles is more active, and after a dust suction mechanism works, the dust is well sucked and removed; and after dust is sucked, the filter plate mechanism can be opened, so that the cleaned plastic particles enter the inner cavity of the storage box to be stored, and the finished product quality of injection molding parts is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of injection molding machine feeding mechanism, specifically a material feeding mechanism for an injection molding machine. Background Technology

[0002] Injection molding machines are the core equipment in plastic product manufacturing. They use plastic molds to transform thermoplastic or thermosetting plastics into various plastic products. The working principle of injection molding machines mainly utilizes the thermophysical properties of plastics. Material is added from the hopper into the barrel, which is heated by heating coils to melt the material. Then, through the rotation and pushing action of the screw, the molten material is injected into the mold cavity. After pressure holding, cooling, solidification and shaping, the mold opens, and the product is ejected through the ejection device.

[0003] The feeding mechanism pushes molten plastic into the mold, ensuring that the plastic melts evenly and is injected into the mold cavity. Most existing injection molding machines' material feeding mechanisms do not have the ability to remove dust mixed in the plastic particles, which reduces the quality of the injection molded product and is not conducive to the production and processing of injection molding machines. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a material feeding mechanism for an injection molding machine, which solves the problem that most existing material feeding mechanisms for injection molding machines do not have the ability to remove dust mixed in the plastic particles, thereby reducing the quality of the injection molded product and hindering the production and processing of the injection molding machine.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a material feeding mechanism for an injection molding machine, including a barrel, wherein the inner cavity of the barrel is provided with a screw mechanism for injection feeding, and the surface of the barrel is provided with a heating element for molten material;

[0006] The feed end at the top of the material cylinder is connected to a storage box. The top of the storage box is connected to a dust collector via a filter plate mechanism. The dust collector has feed inlets on both sides. Rotating rods are rotatably installed on the lower part of both sides of the inner cavity of the dust collector. Several pulleys for agitating granular materials are fixedly connected to the surface of the rotating rods. A dust collection mechanism is installed at the top of the dust collector.

[0007] Furthermore, the screw mechanism includes a reduction gearbox, a first motor, and a screw body. The screw body is rotatably disposed within the inner cavity of the barrel. The reduction gearbox is disposed at the feed end of the barrel. One end of the screw body extends rotatably to the outside of the barrel and is fixedly connected to the output end of the reduction gearbox. The first motor is fixedly connected to the surface of the reduction gearbox and is fixedly connected to its input end.

[0008] Furthermore, a heat insulation sleeve is fixedly connected to the surface of the barrel, and the heat insulation sleeve covers the outside of the heating element.

[0009] Furthermore, the filter plate mechanism includes two openings, two second motors, and two filter plates. The two openings are respectively opened on one side and the other side of the top of the storage box and communicate with the inner cavity of the dust collector. A guide sloping block is fixedly connected to the bottom of the inner wall of the dust collector. The two filter plates are respectively rotatably disposed inside the two openings. The two second motors are respectively fixedly connected to both sides of the bottom of the front end face of the dust collector. The output shaft of the second motor rotatably extends into the inner cavity of the dust collector and is fixedly connected to the front end face of the filter plate at the same end.

[0010] Furthermore, a transmission box is fixedly connected to the lower part of the front side of the dust collector box. The front ends of the two rotating rods extend rotatably into the inner cavity of the transmission box and are fixedly connected to pulleys. The two pulleys are connected by belt drive. A third motor is fixedly connected to one end of the front side of the transmission box. The output shaft of the third motor extends rotatably into the inner cavity of the transmission box and is fixedly connected to the front end of one of the rotating rods.

[0011] Furthermore, the dust collection mechanism includes a receiving box, a dust removal fan, a dust collection disc, and a filter bag. The receiving box is fixedly connected to the top of the dust collection box, the dust collection disc is fixedly connected to the top of the inner wall of the dust collection box, the dust removal fan is fixedly connected to the inner cavity of the receiving box, the air inlet of the dust removal fan is connected to the dust collection disc through a pipe, the filter bag is detachably installed at the air outlet of the dust removal fan, and a maintenance cover is detachably installed on the surface of the receiving box, with an exhaust window provided on the surface of the maintenance cover.

[0012] Furthermore, both sides of the dust collector are fixedly connected with guide hoppers adapted to the feed inlet.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: plastic granules are fed into the inner cavity of the dust collection box through the feed port. After the rotating rod drives multiple pulleys to rotate, the plastic granules are stirred, making the dust attached to the plastic granules more active. Then, after the dust collection mechanism works, the dust is effectively sucked up and removed. After the dust is sucked up, the filter plate mechanism opens, allowing the cleaned plastic granules to enter the inner cavity of the storage box for storage. This facilitates subsequent injection molding feeding, improves the quality of the finished injection molded parts, and benefits the production and processing of the injection molding machine. Attached Figure Description

[0014] Figure 1 This is a front structural diagram of the present invention;

[0015] Figure 2This is a front sectional view of the present invention.

[0016] Figure 3 This is a schematic diagram of the transmission box and rotating rod in this utility model.

[0017] In the diagram: 1. Material cylinder; 2. Heat insulation sleeve; 3. Heating element; 4. Screw body; 5. Gearbox; 6. First motor; 7. Dust collector; 8. Feed inlet; 9. Guide hopper; 10. Second motor; 11. Filter plate; 12. Opening; 13. Transmission box; 14. Rotating rod; 15. Pulley; 16. Third motor; 17. Container box; 18. Dust collector fan; 19. Dust suction disc; 20. Filter bag; 21. Inspection cover; 22. Exhaust window; 23. Storage box. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a material feeding mechanism for an injection molding machine, including a barrel 1, a screw mechanism for feeding material for injection molding is provided in the inner cavity of the barrel 1, and a heating element 3 for molten material is provided on the surface of the barrel 1.

[0020] The top of the material cylinder 1 is connected to the material storage box 23. The top of the material storage box 23 is connected to the dust removal box 7 through the filter plate mechanism. The dust removal box 7 has a material inlet 8 on both sides.

[0021] Rotating rods 14 are rotatably installed on the lower part of both sides of the inner cavity of the dust collector 7. Several pulleys 15 for agitating granular materials are fixedly connected to the surface of the rotating rods 14. A dust collection mechanism is installed on the top of the dust collector 7.

[0022] The feed inlet 8 feeds plastic granules into the inner cavity of the dust collection box 7. After the rotating rod 14 drives multiple pulleys 15 to rotate, the plastic granules are stirred, making the dust attached to the plastic granules more active. Then, after the dust collection mechanism works, the dust is effectively sucked up and removed.

[0023] After the dust is sucked in, the filter plate mechanism can be opened to allow the cleaned plastic particles to enter the inner cavity of the storage box 23 for storage. This facilitates subsequent injection molding feeding, improves the quality of the finished injection molded parts, and benefits the production and processing of the injection molding machine.

[0024] The screw mechanism includes a reduction gearbox 5, a first motor 6, and a screw body 4. The screw body 4 is rotatably disposed in the inner cavity of the barrel 1. The reduction gearbox 5 is disposed at the feed end of the barrel 1. One end of the screw body 4 extends rotatably to the outside of the barrel 1 and is fixedly connected to the output end of the reduction gearbox 5. The first motor 6 is fixedly connected to the surface of the reduction gearbox 5 and is fixedly connected to its input end.

[0025] After the plastic granules in the inner cavity of the storage bin 23 enter the inner cavity of the barrel 1, the granules are melted by the heating element 3, and then the screw body 4 is driven by the first motor 6 to rotate, so as to inject and transport the raw material to the injection molding machine.

[0026] A heat insulation sleeve 2 is fixedly connected to the surface of the material cylinder 1. The heat insulation sleeve 2 covers the outside of the heating element 3, and the heat insulation sleeve 2 shields and protects the heating element 3, thereby improving the safety of the device during use.

[0027] The filter plate mechanism includes two openings 12, two second motors 10, and two filter plates 11. The two openings 12 are respectively opened on one side and the other side of the top of the storage box 23 and are connected to the inner cavity of the dust collector 7. A guide sloping block is fixedly connected to the bottom of the inner wall of the dust collector 7.

[0028] Two filter plates 11 are rotatably disposed inside two openings 12, and two second motors 10 are fixedly connected to the bottom sides of the front end face of the dust collector 7. The output shaft of the second motor 10 extends rotatably into the inner cavity of the dust collector 7 and is fixedly connected to the front end face of the filter plate 11 at the same end.

[0029] After the second motor 10 drives the filter plate 11 to rotate, it can seal or open the inside of the opening 12, so that the plastic particles can be better dusted and then put into the inner cavity of the storage box 23.

[0030] A transmission box 13 is fixedly connected to the lower part of the front side of the dust collector 7. The front ends of the two rotating rods 14 extend into the inner cavity of the transmission box 13 and are fixedly connected to pulleys 15. The two pulleys 15 are connected by belt drive.

[0031] A third motor 16 is fixedly connected to one end of the front side of the transmission box 13. The output shaft of the third motor 16 extends rotatably into the inner cavity of the transmission box 13 and is fixedly connected to the front end of a rotating rod 14.

[0032] During the process of the third motor 16 driving a rotating rod 14 to rotate, the two rotating rods 14 can be driven to rotate through the transmission of the two pulleys 15 and the belt.

[0033] The dust collection mechanism includes a container 17, a dust removal fan 18, a dust collection disc 19, and a filter bag 20. The container 17 is fixedly connected to the top of the dust collection box 7, the dust collection disc 19 is fixedly connected to the top of the inner wall of the dust collection box 7, the dust removal fan 18 is fixedly connected to the inner cavity of the container 17, and the air inlet of the dust removal fan 18 is connected to the dust collection disc 19 through a pipe.

[0034] The filter bag 20 is detached and installed at the outlet of the dust collector fan 18. The surface of the housing 17 is detached and installed with an inspection cover 21, and the surface of the inspection cover 21 is provided with an exhaust window 22.

[0035] After the dust removal fan 18 starts working, it can generate negative pressure inside the dust collection disc 19, which will suck up the airflow containing dust and discharge it into the inner cavity of the filter bag 20. After the filter bag 20 collects the dust, it discharges the airflow.

[0036] Both sides of the dust collector 7 are fixedly connected to guide hoppers 9 that are compatible with the feed inlet 8. The guide hoppers 9 facilitate the feeding of plastic granules into the feed inlet 8.

[0037] During operation, the feed inlet 8 feeds plastic granules into the inner cavity of the dust collection box 7. The rotating rod 14 drives multiple pulleys 15 to rotate, which agitates the plastic granules, making the dust attached to the plastic granules more active. Then, the dust collection mechanism works to effectively suck up and remove the dust. After the dust is sucked up, the filter plate mechanism opens, allowing the cleaned plastic granules to enter the inner cavity of the storage box 23 for storage, which facilitates subsequent injection molding feeding and improves the quality of the finished injection molded parts.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A material feeding mechanism of an injection molding machine comprising a barrel (1), characterized in that: The inner cavity of the barrel (1) is provided with a screw mechanism for injection molding feeding, and the surface of the barrel (1) is provided with a heating piece (3) for molten material; The feeding end of the top of the barrel (1) is communicated with a storage tank (23), the top of the storage tank (23) is communicated with a dust removal tank (7) through a filter plate mechanism, dust removal tank (7) The two side surfaces are each provided with a feeding port (8), and the lower part of the two sides of the dust removal tank (7) is rotatably provided with a rotating rod (14), and the surface of the rotating rod (14) is fixedly connected with a plurality of belt pulleys (15) for stirring granular material, and the top of the dust removal tank (7) is provided with a dust suction mechanism.

2. A material feeding mechanism for an injection molding machine as defined in claim 1, wherein: The screw mechanism comprises a reduction box (5), a first motor (6) and a screw body (4), the screw body (4) is rotatably arranged in the inner cavity of the barrel (1), the reduction box (5) is arranged at the feeding end of the barrel (1), one end of the screw body (4) rotatably extends to the outside of the barrel (1), and is fixedly connected with the output end of the reduction box (5), and the first motor (6) is fixedly connected with the surface of the reduction box (5), and is fixedly connected with the input end thereof.

3. A material feeding mechanism for an injection molding machine as defined in claim 1, wherein: The surface of the barrel (1) is fixedly connected with a heat insulation sleeve (2), and the heat insulation sleeve (2) covers the outside of the heating piece (3).

4. A material feeding mechanism for an injection molding machine as defined in claim 1, wherein: The filter plate mechanism comprises two openings (12), two second motors (10) and two filter plates (11), two openings (12) are respectively arranged on one side and the other side of the top of the storage tank (23), and are communicated with the inner cavity of the dust removal tank (7), the bottom of the inner wall of the dust removal tank (7) is fixedly connected with a guide slope, two filter plates (11) are rotatably arranged in the two openings (12), two second motors (10) are fixedly connected on both sides of the bottom of the front end face of the dust removal tank (7), the output shaft of the second motor (10) rotatably extends to the inner cavity of the dust removal tank (7), and is fixedly connected with the front end face of the filter plate (11) at the same end.

5. A material feeding mechanism for an injection molding machine as defined in claim 1, wherein: The lower part of the front side of the dust removal tank (7) is fixedly connected with a transmission box (13), the front ends of the two rotating rods (14) rotatably extend to the inner cavity of the transmission box (13), and are fixedly connected with a belt pulley (15), the two belt pulleys (15) are connected through a belt, one end of the front side of the transmission box (13) is fixedly connected with a third motor (16), the output shaft of the third motor (16) rotatably extends to the inner cavity of the transmission box (13), and is fixedly connected with the front end of one rotating rod (14).

6. A material feeding mechanism for an injection molding machine as defined in claim 1, wherein: Said dust collection mechanism includes containing box (17), dust removal fan (18), dust collection disc (19) and filter cloth bag (20), containing box (17) is fixedly connected to the top of dust removal box (7), dust collection disc (19) is fixedly connected to the top of the inner wall of dust removal box (7), dust removal fan (18) is fixedly connected to the inner cavity of containing box (17), the air inlet of dust removal fan (18) is communicated with dust collection disc (19) through pipeline, filter cloth bag (20) is detachably arranged at the air outlet of dust removal fan (18), the surface of containing box (17) is detachably provided with access cover plate (21), the surface of access cover plate (21) is provided with exhaust window (22).

7. A material feeding mechanism for an injection molding machine as defined in claim 1, wherein: Both sides of dust removal box (7) are fixedly connected with guide chute (9) matched with feed inlet (8).

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