Injection molding machine feed mechanism

Abstract

The utility model relates to injection molding machine feed technology field, concretely discloses a kind of injection molding machine feed mechanism, including feed hopper and the box cover being set at the top of feed hopper, rotatingly connected with rotating rod in the feed hopper, rotating rod is provided with several groups of cross bars, several groups of crushing blades are provided on the cross bar, the utility model is driven rotating rod to rotate by setting rotating rod, cross bar, crushing blade, drive assembly and air-blast component, air-blast component carries out air-blast to feed hopper inside, drive assembly drives rotating rod to rotate, rotating rod drives several groups of cross bars to rotate in feed hopper, plastic particles are stirred, can reduce the situation that plastic particles is due to humidity is larger and generates adhesion while a variety of injection molding raw materials can be stirred and mixed, avoid to appear a large amount of water vapor to enter injection molding machine, vaporization is generated under high temperature condition, lead to injection molding finished product inside appear bubble and other phenomena, improve the quality of injection molding.

Description

Technical Field

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

[0002] The core reason why injection molding machines need a feeding mechanism is to achieve an efficient, stable, and automated production process. The feeding mechanism accurately delivers plastic raw materials into the injection molding machine hopper through vacuum conveying, screw feeding, or a central feeding system, avoiding errors and contamination from manual feeding; at the same time, it integrates drying and mixing functions to ensure uniform drying of raw materials and prevent bubbles or color differences in the product.

[0003] A current patent publication number CN216230460U discloses a feeding mechanism for an injection molding machine, including a rotating rod and a flow-limiting baffle. External injection plastic is injected through the feed inlet. Because the cross-section of the feed shell is trapezoidal in actual use, the injection plastic can be more easily fed into the feed inlet. When the injection plastic discharge rate needs adjustment, the operator rotates the rotating head, which is fixedly connected to the rotating rod. The rotating rod is fixedly connected to the inside of the flow-limiting baffle in actual use. The rotating head drives the rotating rod to rotate, and the rotating rod drives the flow-limiting baffle to rotate. The operator adjusts and controls the injection plastic discharge rate according to the size of the obstruction area of ​​the flow-limiting baffle inside the feed trough. When the feed trough is blocked, the motor is started, and the motor drives the transmission shaft to rotate. The transmission shaft drives the agitator to rotate, allowing the injection plastic inside the feed trough to move along the inside of the agitator, thereby resolving the blockage inside the feed trough.

[0004] In the injection molding process, the uniformity of raw material mixing directly affects the quality of the finished product. The aforementioned devices require thorough pre-mixing of the raw materials during the feeding stage. Furthermore, since the surface of the plastic raw materials may absorb moisture, an additional drying process is necessary, leading to cumbersome operation and reduced production efficiency. To address these issues, a new feeding mechanism for injection molding machines is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a feeding mechanism for an injection molding machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A feeding mechanism for an injection molding machine includes a feeding hopper and a cover disposed on the top of the feeding hopper. A rotating rod is rotatably connected inside the feeding hopper. Several sets of crossbars are disposed on the rotating rod. Several sets of crushing blades are disposed on the crossbars. A driving assembly for driving the rotating rod to rotate is disposed on the cover.

[0008] The drive assembly includes a driven wheel and a driving wheel. The driven wheel is located on the top of the box cover, and the driving wheel is rotatably connected to the top of the box cover. The rotating rod is rotatably connected to the box cover and extends to the outer wall of the top of the box cover, where the driven wheel is fixedly connected. The driven wheel is connected to the driving wheel via a synchronous belt drive. A support frame is fixedly connected to the top of the box cover, and a second motor for driving the driving wheel to rotate is installed on the support frame.

[0009] A discharge pipe is fixedly connected to the bottom of the feed hopper, and an auger blade is rotatably connected inside the discharge pipe. A rotating assembly for driving the auger blade to rotate is provided on the top of the box cover, and a blower assembly is provided on one side of the feed hopper.

[0010] In one alternative: the rotating assembly includes a support rod rotatably connected inside the discharge pipe, the auger blades are fixedly connected to the support rod, the support rod is rotatably connected inside the rotating rod, one end of the support rod extending to the outside is rotatably connected to a support frame, and a first motor for driving the support rod to rotate is mounted on the support frame.

[0011] In one alternative embodiment: the blower assembly includes a blower pipe and a blower, the blower pipe is installed on one side of the feed hopper, the outlet of the blower is connected to the inlet of the blower pipe, a conveying pipe is installed at the inlet of the blower, the blower pipe is connected to the inner cavity of the feed hopper, and a protective net is installed at the outlet of the blower pipe.

[0012] In one alternative: a feeding hopper is installed on the top of the box cover, the feeding hopper is connected to the inner cavity of the feed hopper, and a filter cover is provided on the top of the feeding hopper.

[0013] In one alternative: the inner wall of the discharge pipe is connected to the inner wall of the feed hopper.

[0014] In one alternative: the crushing blade is positioned horizontally on the crossbar.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention incorporates a rotating rod, crossbars, crushing blades, a drive assembly, and a blower assembly. The blower assembly circulates air into the feed hopper, while the drive assembly rotates the rotating rod. The rotating rod, in turn, drives several sets of crossbars to rotate within the feed hopper, thus agitating the plastic granules. This process allows for the mixing of various injection molding materials while reducing the adhesion of plastic granules due to high humidity. It also prevents excessive moisture from entering the injection molding machine and vaporizing at high temperatures, which could lead to air bubbles in the finished product, thereby improving the quality of the injection molding process.

[0017] This invention, by setting up auger blades and a rotating assembly, starts a first motor to drive a support rod to rotate. The support rod drives the auger blades to rotate inside the discharge pipe, which uniformly conveys the plastic granules. This can prevent the granules from accumulating or fluctuating in flow rate inside the discharge pipe and reduce wear on the discharge pipe. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a structural diagram of the location of the blower in this utility model.

[0020] Figure 3 This is a schematic diagram of the structure where the crossbar is located in this utility model.

[0021] Figure 4 This is a schematic diagram of the structure where the rotating rod is located in this utility model.

[0022] Figure 5 This is a schematic diagram of the structure where the driven wheel is located in this utility model.

[0023] In the diagram: 11. Feed hopper; 12. Discharge pipe; 13. Rotating rod; 14. Crossbar; 15. Crushing blade; 16. Driven wheel; 17. Driving wheel; 18. Support rod; 19. Screwdriver blade; 20. Support frame; 21. First motor; 22. Second motor; 23. Blower; 24. Blower pipe; 25. Conveying pipe; 26. Box cover; 27. Feed hopper. Detailed Implementation

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] 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.

[0026] Please see Figures 1-5In this embodiment, an injection molding machine feeding mechanism includes a feeding hopper 11 and a box cover 26 disposed on the top of the feeding hopper 11. A rotating rod 13 is rotatably connected inside the feeding hopper 11. A plurality of crossbars 14 are disposed on the rotating rod 13. A plurality of crushing blades 15 are disposed on the crossbars 14. A driving assembly for driving the rotating rod 13 to rotate is disposed on the box cover 26.

[0027] The drive assembly includes a driven wheel 16 and a driving wheel 17. The driven wheel 16 is disposed on the top of the cover 26, and the driving wheel 17 is rotatably connected to the top of the cover 26. A rotating rod 13 is rotatably connected to the cover 26 and extends to the outer wall of the top of the cover 26, where it is fixedly connected to the driven wheel 16. The driven wheel 16 is connected to the driving wheel 17 via a synchronous belt drive. A support frame 20 is fixedly connected to the top of the cover 26, and a second motor 22 for driving the driving wheel 17 to rotate is mounted on the support frame 20. The second motor 22 starts, driving the drive wheel 17 to rotate. The driven wheel 16 is connected to the drive wheel 17 via a synchronous belt, driving the rotating rod 13 to rotate. The rotating rod 13 drives several sets of crossbars 14 to rotate in the feed hopper 11, stirring the plastic granules. This can mix various injection molding materials while reducing the adhesion of plastic granules due to high humidity, and prevent a large amount of water vapor from entering the injection molding machine and vaporizing at high temperatures, which could lead to bubbles inside the injection molded product, thus improving the quality of injection molding.

[0028] In actual use, both the driven pulley 16 and the driving pulley 17 are equipped with baffles at the bottom, so the timing belt will not fall off when it is set horizontally.

[0029] The bottom of the feed hopper 11 is fixedly connected to the discharge pipe 12, and the discharge pipe 12 is rotatably connected to the auger blade 19. The top of the cover 26 is provided with a rotating assembly for driving the auger blade 19 to rotate, and a blower assembly is provided on one side of the feed hopper 11.

[0030] The rotating assembly includes a support rod 18, which is rotatably connected inside the discharge pipe 12. The auger blade 19 is fixedly connected to the support rod 18. The support rod 18 is rotatably connected inside the rotating rod 13. One end of the support rod 18 extending to the outside is rotatably connected to a support frame 20. A first motor 21 for driving the support rod 18 to rotate is installed on the support frame 20. When the first motor 21 is started, it drives the support rod 18 to rotate. The support rod 18 drives the auger blade 19 to rotate inside the discharge pipe 12, which uniformly conveys the plastic granules. This can prevent the granules from accumulating or fluctuating in flow rate inside the discharge pipe 12, and reduce the wear of the discharge pipe 12.

[0031] The blower assembly includes a blower pipe 24 and a blower 23. The blower pipe 24 is installed on one side of the feed hopper 11. The air outlet of the blower 23 is connected to the air inlet of the blower pipe 24. A conveying pipe 25 is installed at the air inlet of the blower 23. The blower pipe 24 is connected to the inner cavity of the feed hopper 11. A protective net is installed at the air outlet of the blower pipe 24. When the blower 23 is started, the external air is filtered by the filter mechanism and then conveyed to the blower pipe 24 through the conveying pipe 25. The blower pipe 24 conveys the air into the feed hopper 11, which can dry the plastic particles in the feed hopper 11.

[0032] A feeding hopper 27 is installed on the top of the box cover 26. The feeding hopper 27 is connected to the inner cavity of the feeding hopper 11. A filter cover is provided on the top of the feeding hopper 27. The feeding pipe is connected to the feeding hopper 27 on the top of the box cover 26 to feed material into the feeding hopper 11. After the feeding is completed, the filter cover of the feeding hopper 27 is closed, and the gas drives the moisture in the feeding hopper 11 to be discharged into the air through the filter cover on the feeding hopper 27.

[0033] The inner wall of the discharge pipe 12 is connected to the inner wall of the feed hopper 11, which facilitates the uniform feeding of plastic granules into the feed hopper 11.

[0034] The crushing blade 15 is horizontally arranged on the crossbar 14. By horizontally arranging the crushing blade 15, the plastic raw material can be cut during the mixing process, making the plastic particles smaller, accelerating the melting of the plastic particles, and improving the efficiency of injection molding.

[0035] The working principle of this utility model is as follows: In use, firstly, the discharge pipe 12 is installed at the injection molding machine's feed inlet. The feed pipe is connected to the feeding hopper 27 on the top of the cover 26 to feed material into the feeding hopper 11. After feeding is complete, the filter cover of the feeding hopper 27 is closed, and the blower 23 is started. External air is filtered through the filter mechanism and then conveyed through the conveying pipe 25 to the blower pipe 24. The blower pipe 24 conveys the air into the feeding hopper 11. The second motor 22 is started, driving the drive wheel 17 to rotate. The driven wheel 16 is connected to the drive wheel 17 via a synchronous belt, driving the rotating rod 13 to rotate. The rotating rod 13 drives several sets of crossbars 14 to rotate within the feeding hopper 11, stirring the plastic granules. This allows for the mixing of various injection molding raw materials while reducing the impact of moisture on the plastic granules. To prevent adhesion and excessive moisture from entering the injection molding machine and vaporizing at high temperatures, which could lead to air bubbles in the finished product, the gas in the feed hopper 11 is discharged into the air through the filter cover on the loading hopper 27. During the rotation of the crossbar 14, several sets of crushing blades 15 cut the plastic granules, accelerating their melting and improving injection molding efficiency. After air drying and mixing, the second motor 22 and blower 23 are turned off, and the first motor 21 is started, driving the support rod 18 to rotate. The support rod 18 drives the auger blades 19 to rotate in the discharge pipe 12, uniformly conveying the plastic granules and preventing granule accumulation or flow rate fluctuations in the discharge pipe 12, thus reducing wear on the discharge pipe 12.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A feeding mechanism for an injection molding machine, comprising a feeding hopper (11) and a cover (26) disposed on the top of the feeding hopper (11), characterized in that: The feed hopper (11) is rotatably connected to a rotating rod (13), and the rotating rod (13) is provided with several sets of crossbars (14), and the crossbars (14) are provided with several sets of crushing blades (15). The box cover (26) is provided with a drive assembly for driving the rotating rod (13) to rotate. The drive assembly includes a driven wheel (16) and a driving wheel (17). The driven wheel (16) is located on the top of the box cover (26). The driving wheel (17) is rotatably connected to the top of the box cover (26). The rotating rod (13) is rotatably connected to the box cover (26). The rotating rod (13) extends to the outer wall of the top of the box cover (26) and is fixedly connected to the driven wheel (16). The driven wheel (16) is connected to the driving wheel (17) via a synchronous belt drive. A support frame (20) is fixedly connected to the top of the box cover (26). A second motor (22) for driving the driving wheel (17) to rotate is installed on the support frame (20). The bottom of the feed hopper (11) is fixedly connected to a discharge pipe (12), and an auger blade (19) is rotatably connected inside the discharge pipe (12). The top of the box cover (26) is provided with a rotating assembly for driving the auger blade (19) to rotate, and a blower assembly is provided on one side of the feed hopper (11).

2. The feeding mechanism for an injection molding machine according to claim 1, characterized in that: The rotating assembly includes a support rod (18) which is rotatably connected inside the discharge pipe (12). The auger blade (19) is fixedly connected to the support rod (18). The support rod (18) is rotatably connected inside the rotating rod (13). One end of the support rod (18) extending to the outside is rotatably connected to a support frame (20). A first motor (21) for driving the support rod (18) to rotate is installed on the support frame (20).

3. The feeding mechanism for an injection molding machine according to claim 1, characterized in that: The blower assembly includes a blower pipe (24) and a blower (23). The blower pipe (24) is installed on one side of the feed hopper (11). The air outlet of the blower (23) is connected to the air inlet of the blower pipe (24). A conveying pipe (25) is installed at the air inlet of the blower (23). The blower pipe (24) is connected to the inner cavity of the feed hopper (11). A protective net is installed at the air outlet of the blower pipe (24).

4. The feeding mechanism for an injection molding machine according to claim 1, characterized in that: The top of the box cover (26) is equipped with a feeding hopper (27), which is connected to the inner cavity of the feeding hopper (11). The top of the feeding hopper (27) is provided with a filter cover.

5. The feeding mechanism for an injection molding machine according to claim 1, characterized in that: The inner wall of the discharge pipe (12) is connected to the inner wall of the feed hopper (11).

6. The feeding mechanism for an injection molding machine according to claim 1, characterized in that: The crushing blade (15) is horizontally positioned on the crossbar (14).

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