Injection molding machine feed apparatus

The injection molding machine feeding device with bidirectional stirring rod and vibration structure solves the problem of uneven raw material mixing, realizes efficient and uniform mixing and automated feeding, and ensures injection molding quality and smooth feeding.

CN224588466UActive Publication Date: 2026-08-04SUZHOU ORBITER PRECISION PLASTIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU ORBITER PRECISION PLASTIC CO LTD
Filing Date
2025-09-01
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In existing injection molding machine feeding devices, the raw materials and ingredients are not mixed evenly, which affects the injection molding quality.

Method used

It adopts a two-way stirring mechanism, including a motor-driven stirring rod and a gear meshing structure, combined with the vibration of the telescopic rod and spring to achieve efficient mixing, and realizes automated feeding through the pump body and guide pipe.

Benefits of technology

It improves the uniformity of raw material and ingredient mixing, ensuring injection molding quality, while also improving material supply efficiency and avoiding blockages, thus achieving automated continuous material supply.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224588466U_ABST
Patent Text Reader

Abstract

The utility model discloses an injection molding machine feedway belongs to injection molding machine feed field, including injection molding machine body, the feed of injection molding machine body is connected with the feed port having, the outer wall fixed connection of injection molding machine body has telescopic link, the movable end fixed connection of telescopic link has box, the outer wall of injection molding machine body is located the fixed connection of first spring of telescopic link's outer ring, the utility model discloses the setting of motor, stirring rod, first gear, telescopic link, first spring, box, extruding ball and connecting ball, and stirring rod drives extruding ball to rotate to the shear force that produces when with force ball contact can make the cooperation of box with telescopic link and first spring realizes the vibration, promotes the raw material and the batching in the box, can improve the mixing effect between each other, and then this kind of stirring mode will make the mixing between raw material and batching more uniform, makes raw material and batching carry out effective mixing after, thereby avoids the influence quality of subsequent injection molding.
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Description

Technical Field

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

[0002] An injection molding machine is a plastic injection molding device used to melt and shape plastic into a mold. Its main function is to heat and melt plastic powder or particles, and then inject them into the mold through the screw of the injection molding machine to produce plastic products of various shapes and excellent quality. It is widely used in various industries, such as automobile manufacturing, electronic product manufacturing and medical devices. Currently, injection molding machines require a feeding device to transport materials into the injection molding machine.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN214082528U) discloses a feeding device for an injection molding machine, comprising a feeding device, an outlet pipe connected to one outer surface of the feeding device, a pump connected to one outer surface of the outlet pipe, a guide port connected to one outer surface of the pump, a mixing chamber and a feeding port installed on the upper outer surface of the feeding device, the mixing chamber being located at the rear end of the feeding port, a mixing trough installed on the upper outer surface of the mixing chamber, a motor connected to one outer surface of the mixing chamber, and a guide pipe installed on the upper outer surface of the feeding port.

[0004] Although the aforementioned patents, compared to existing technologies, facilitate the supply of raw materials to the injection molding machine while simultaneously processing and mixing the ingredients before supplying them to the machine, thus improving usability and promising better application prospects, these patents rely solely on traditional mixing methods to blend the raw materials and ingredients. Consequently, this mixing method still results in uneven mixing of the raw materials and ingredients, failing to effectively combine them and thus affecting the quality of subsequent injection molding.

[0005] Therefore, this utility model provides a material feeding device for an injection molding machine to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This utility model provides a feeding device for an injection molding machine, which aims to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a feeding device for an injection molding machine, comprising an injection molding machine body, a feeding port connected to the feeding part of the injection molding machine body, a telescopic rod fixedly connected to the outer wall of the injection molding machine body, a housing fixedly connected to the movable end of the telescopic rod, a first spring fixedly connected to the outer wall of the injection molding machine body on the outer ring of the telescopic rod, the end of the first spring near the housing being fixedly connected to the outer wall of the housing, and a stirring mechanism being provided inside the housing.

[0010] The stirring mechanism includes stirring rods rotatably connected to both sides inside the housing. A motor for driving the stirring rods to rotate is provided on the outer wall of the housing. A first gear is fixedly connected between the outer surfaces of the stirring rods and meshes with each other. An extrusion ball is fixedly connected to the outer surface of the stirring rods. A connecting ball that contacts the extrusion ball is fixedly connected to the outer wall of the injection molding machine body.

[0011] As a preferred technical solution of this application, a pump body is fixedly connected to the top of the injection molding machine body, and a hose is connected to the inner cavity of the pump body. The end of the hose away from the pump body is connected to the inner cavity of the housing.

[0012] As a preferred technical solution of this application, the inner cavity of the pump body is connected to a guide pipe, and the end of the guide pipe away from the pump body is located in the feed port.

[0013] As a preferred technical solution of this application, the top of the injection molding machine body is rotatably connected to the feed port, and a second gear is fixedly connected to the outer surface of the scraper.

[0014] As a preferred technical solution of this application, a connecting rod is slidably connected to the top of the injection molding machine body, and a force-bearing block is fixedly connected to one end of the connecting rod near the gear.

[0015] As a preferred technical solution of this application, a second spring is fixedly connected to the top of the injection molding machine body on the outer ring of the connecting rod, and the end of the second spring near the force-bearing block is fixedly connected to the outer wall of the force-bearing block.

[0016] As a preferred technical solution of this application, a rack that meshes with the second gear is fixedly connected to the outer wall of the force-bearing block, a cam is slidably connected to the top of the injection molding machine body, and a transmission belt is connected between the cam and the stirring rod.

[0017] (III) Beneficial Effects

[0018] This invention, through the arrangement of a motor, stirring rod, first gear, telescopic rod, first spring, housing, extrusion ball, and connecting ball, allows the following: when the motor drives one of the stirring rods to rotate, the first gear connected to it rotates synchronously. This causes another first gear meshing with the first gear to drive the adjacent stirring rod to rotate in the opposite direction, forming a highly efficient bidirectional stirring effect. Furthermore, the shear force generated when the stirring rod drives the extrusion ball to contact the force-bearing ball causes the housing to vibrate using the cooperation of the telescopic rod and the first spring. This promotes better mixing of the raw materials and ingredients within the housing, resulting in a more uniform mixture. This effective mixing of the raw materials and ingredients prevents any impact on the quality of subsequent injection molding. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a feeding device for an injection molding machine;

[0020] Figure 2 This is a schematic diagram of the structure of the injection molding machine body in a material feeding device for an injection molding machine.

[0021] Figure 3 This is a schematic diagram of the structure of a stirring rod in a feeding device for an injection molding machine.

[0022] Figure 4 for Figure 1 A magnified structural diagram at point A;

[0023] Figure 5 for Figure 3 A magnified structural diagram at point B;

[0024] In the picture:

[0025] 1. Injection molding machine body; 2. Feed port; 3. Telescopic rod; 4. Housing; 5. First spring; 6. Agitator rod; 7. Motor; 8. First gear; 9. Extrusion ball; 10. Connecting ball; 11. Pump body; 12. Hose; 13. Guide pipe; 14. Scraper; 15. Second gear; 16. Connecting rod; 17. Force block; 18. Second spring; 19. Rack; 20. Cam; 21. Drive belt. Detailed Implementation

[0026] 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.

[0027] This utility model provides a feeding device for an injection molding machine, such as... Figure 1-5 As shown, the feeding device includes an injection molding machine body 1, a feeding port 2 connected to the feeding part of the injection molding machine body 1, a telescopic rod 3 fixedly connected to the outer wall of the injection molding machine body 1, a housing 4 fixedly connected to the movable end of the telescopic rod 3, a first spring 5 fixedly connected to the outer wall of the injection molding machine body 1 on the outer ring of the telescopic rod 3, and the end of the first spring 5 near the housing 4 fixedly connected to the outer wall of the housing 4. A stirring mechanism is provided inside the housing 4.

[0028] The mixing mechanism includes mixing rods 6 rotatably connected to both sides inside the housing 4. A motor 7 for driving the mixing rods 6 to rotate is provided on the outer wall of the housing 4. A first gear 8 is fixedly connected between the outer surfaces of the mixing rods 6 and meshes with each other. An extrusion ball 9 is fixedly connected to the outer surface of the mixing rods 6. A connecting ball 10 that contacts the extrusion ball 9 is fixedly connected to the outer wall of the injection molding machine body 1.

[0029] A pump body 11 is fixedly connected to the top of the injection molding machine body 1. A hose 12 is connected to the inner cavity of the pump body 11. The end of the hose 12 away from the pump body 11 is connected to the inner cavity of the housing 4.

[0030] The inner cavity of the pump body 11 is connected to a guide pipe 13, and the end of the guide pipe 13 away from the pump body 11 is located in the feed port 2.

[0031] Specifically, when effective mixing of raw materials and ingredients is required, the raw materials and ingredients are first placed into the housing 4, and then the motor 7 is started. After the motor 7 starts running, it drives the stirring rod 6 to rotate through the output shaft. Through the meshing of the adjacent first gear 8, the two stirring rods 6 can rotate synchronously in opposite directions, forming a highly efficient bidirectional mixing effect. At the same time, one of the stirring rods 6 can drive the extrusion ball 9 to contact the connecting ball 10, so that the extrusion ball 9 and the connecting ball 10 generate mutual shearing force. The housing 4 vibrates through the cooperation of the telescopic rod 3 and the first spring 5, promoting uniform mixing of materials. At the same time, the telescopic rod 3 drives the housing 4 to reciprocate under the action of the first spring 5, further enhancing the mixing effect. The mixed material is sucked in through the hose 12 by the negative pressure generated by the pump body 11, and then accurately delivered to the feeding port 2 by the guide pipe 13, realizing automated continuous feeding. This ingenious structural design not only ensures the uniformity of mixing, but also improves the feeding efficiency, effectively solving the problems of uneven mixing and low efficiency of traditional feeding devices.

[0032] The top of the injection molding machine body 1 is rotatably connected to the feed port 2, and a gear is fixedly connected to the outer surface of the scraper 14.

[0033] A connecting rod 16 is slidably connected to the top of the injection molding machine body 1, and a force-bearing block 17 is fixedly connected to one end of the connecting rod 16 near the gear.

[0034] A second spring 18 is fixedly connected to the top of the injection molding machine body 1 on the outer ring of the connecting rod 16. One end of the second spring 18 near the force block 17 is fixedly connected to the outer wall of the force block 17.

[0035] A rack 19 that meshes with a gear is fixedly connected to the outer wall of the force-bearing block 17, and a cam 20 is slidably connected to the top of the injection molding machine body 1. A transmission belt 21 is connected between the cam 20 and the stirring rod 6.

[0036] Specifically, the cam 20 rotates synchronously with the stirring rod 6 under the action of the transmission belt 21. When the cam 20 rotates to its highest point, it pushes the force block 17 to move outward against the elastic force of the second spring 18. This allows the force block 17 to drive the rack 19 to move outward through the connection stability provided by the connecting rod 16. The second gear 15, which meshes with the rack 19, can then drive the scraper 14 to rotate, thereby cleaning the raw material adhering to the inner wall of the feed port 2 and preventing the raw material from adhering to the feed port 2 and causing subsequent blockage. When the cam 20 rotates to its lowest point, the elastic restoring force of the second spring 18 causes the force block 17 to be smoothly reset through the connecting rod 16. This allows the force block 17 to drive the rack 19 back to its original position. The second gear 15, which meshes with the rack 19, can drive the scraper 14 to rotate in the opposite direction to complete a circular cycle, so as to thoroughly remove the raw materials adhering to the inner wall of the feed port 2, and further ensure the unobstructed flow of the feed port 2. This linkage design realizes the simultaneous mixing and cleaning, improves the mixing effect of raw materials and ingredients, and avoids the accumulation of materials in the feed port 2, ensuring that the channel of the feed port 2 is unobstructed. At the same time, the cam 20 is a sliding connection so that when the box 4 moves, the cam 20 will also move with it, preventing the cam 20 from being unable to move. When the box 4 moves, there will be an interlacing between the cam 20 and the transmission belt 21, preventing the transmission belt 21 from detaching from the cam 20 and causing the scraper 14 to be unable to rotate.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. Injection molding machine feed device, comprising an injection molding machine body (1), characterized in that: The injection molding machine body (1) has a feeding port (2) connected to its feeding port. A telescopic rod (3) is fixedly connected to the outer wall of the injection molding machine body (1). A housing (4) is fixedly connected to the movable end of the telescopic rod (3). A first spring (5) is fixedly connected to the outer wall of the injection molding machine body (1) on the outer ring of the telescopic rod (3). The end of the first spring (5) near the housing (4) is fixedly connected to the outer wall of the housing (4). A stirring mechanism is provided inside the housing (4). The stirring mechanism includes stirring rods (6) rotatably connected to both sides inside the housing (4). The outer wall of the housing (4) is provided with a motor (7) for driving the stirring rods (6) to rotate. A first gear (8) is fixedly connected between the outer surfaces of the stirring rods (6) and meshes with each other. An extrusion ball (9) is fixedly connected to the outer surface of the stirring rods (6). A connecting ball (10) that contacts the extrusion ball (9) is fixedly connected to the outer wall of the injection molding machine body (1).

2. An injection molding machine feed apparatus as defined in claim 1, wherein: A pump body (11) is fixedly connected to the top of the injection molding machine body (1). A hose (12) is connected to the inner cavity of the pump body (11). One end of the hose (12) away from the pump body (11) is connected to the inner cavity of the housing (4).

3. An injection molding machine feed apparatus as defined in claim 2 wherein: The inner cavity of the pump body (11) is connected to a guide pipe (13), and the end of the guide pipe (13) away from the pump body (11) is located in the feed port (2).

4. An injection molding machine feed apparatus as defined in claim 1, wherein: The top of the injection molding machine body (1) is rotatably connected to the feed port (2), and a second gear (15) is fixedly connected to the outer surface of the scraper (14).

5. An injection molding machine feed apparatus as defined in claim 4 wherein: A connecting rod (16) is slidably connected to the top of the injection molding machine body (1), and a force-bearing block (17) is fixedly connected to one end of the connecting rod (16) near the gear.

6. A material supply device for an injection molding machine according to claim 5, characterized in that: The top of the injection molding machine body (1) is fixedly connected to the outer ring of the connecting rod (16) with a second spring (18). The end of the second spring (18) near the force block (17) is fixedly connected to the outer wall of the force block (17).

7. An injection molding machine feed apparatus as defined in claim 6 wherein: The outer wall of the force-bearing block (17) is fixedly connected to a rack (19) that meshes with the second gear (15). The top of the injection molding machine body (1) is slidably connected to a cam (20). A transmission belt (21) is connected between the cam (20) and the stirring rod (6).