Injection molding machine raw material feeding device

Abstract

The utility model provides a kind of injection molding machine raw material feeding device, belong to injection molding equipment technical field, including transmission pipe, the side fixed mounting of transmission pipe has feeding assembly, the side of feeding assembly is provided with stirring assembly.The utility model is stored in the raw material in storage tank by being accurately and continuously with the feeding assembly being set, effectively guarantees the continuity of raw material supply in injection molding production process, reduces the production failure and product quality problem caused by feeding interruption or instability;Through the stirring assembly being set, the raw material that possibly agglomerates, sticks in storage tank before injection molding machine works due to environmental factors is fully stirred and scattered, so that the raw material restores loose, uniform state, to ensure that raw material can smoothly enter feeding assembly, avoid the poor state of raw material and cause the poor transport and injection molding product defect, improve the overall efficiency of injection molding production and product quality.

Description

Technical Field

[0001] This utility model relates to the field of injection molding equipment technology, and more specifically, to a raw material feeding device for an injection molding machine. Background Technology

[0002] The raw material feeding device of an injection molding machine is a key piece of equipment in injection molding production. In the early days, the injection molding industry relied heavily on simple manual feeding, which was inefficient and difficult to control in terms of quality. With industrial development and the increasing demand for automation, feeding devices began to appear and gradually evolved. From the initial basic mechanical structure to the integration of electronic control technology, they have undergone continuous improvement to better adapt to the requirements of injection molding production for a stable and precise supply of raw materials.

[0003] A search revealed that Chinese Patent Publication No. CN214687631U discloses "a raw material feeding device for an injection molding machine, relating to the field of plastic injection molding. It includes a material tank connected to the injection molding machine's feed inlet, a transmission pipe spirally arranged inside the material tank, a heating component for drying the raw material inside the material tank, an inlet at the upper end of the material tank, an outlet at the lower end of the material tank, and a conveying component at the inlet for transporting the raw material into the material tank. This application has the effect of ensuring uniform heating of the raw material in the material tank without continuous heating, and that the raw material entering the injection molding machine is in a suitable drying state, which can greatly improve the injection molding quality of the product." However, it still has the following drawbacks: (1) In actual use, the device is equipped with only a spiral transmission pipe in the tank, and the structure is relatively simple. When facing some raw materials with poor flowability or easy agglomeration, the spiral transmission pipe may become blocked, affecting the continuity of material supply. (2) In actual use, the device does not take into account other problems that may occur during the storage and transportation of raw materials, such as the uniform mixing of raw materials and the prevention of raw material deposition in the tank, and cannot meet the requirements of modern injection molding production for multi-functional and high-efficiency raw material feeding devices. Therefore, a raw material feeding device for injection molding machines is proposed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing material feeding devices, which only have a spiral transmission tube inside the material tank, resulting in a relatively simple structure. When dealing with raw materials with poor flowability or a tendency to clump, the spiral transmission tube may become clogged, affecting the continuity of material feeding. Furthermore, it does not consider other problems that may occur during the storage and transportation of raw materials, such as the uniform mixing of raw materials and the prevention of raw material deposition in the material tank. Consequently, it fails to meet the requirements of modern injection molding production for multifunctional and high-efficiency raw material feeding devices. Therefore, this invention provides a raw material feeding device for injection molding machines to solve the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: The present invention is as follows: a raw material feeding device for an injection molding machine, including a transmission pipe, a feeding component for storing and stably conveying raw materials is fixedly installed on one side of the transmission pipe, and a stirring component for breaking up the piled-up state of the feeding material and preventing the raw materials from sticking together is provided on one side of the feeding component. The feeding assembly includes a first servo motor fixedly mounted on one side of the transmission pipe, a transmission shaft fixedly mounted on the output end of the first servo motor, spiral blades welded to the periphery of the transmission shaft, a feed inlet on the periphery of the transmission pipe, a storage box fixedly mounted at the feed inlet, a discharge outlet on the periphery of the transmission pipe away from the feed inlet, a discharge hopper fixedly mounted on the periphery of the discharge outlet, a connecting pipe at one end of the discharge hopper, four support legs fixedly mounted at the bottom of the storage box, and a support frame fixedly mounted on the periphery of the transmission pipe.

[0006] As a preferred technical solution of this utility model, the stirring assembly includes a second servo motor fixedly installed on one side of the storage tank, a stirring shaft fixedly installed at the output end of the second servo motor, and a plurality of stirring rods welded to the periphery of the stirring shaft.

[0007] As a preferred technical solution of this utility model, the bottom of the support frame is fixedly installed with two universal wheels, the bottom of the four support legs is fixedly installed with a base, and the bottom of the base is fixedly installed with four universal wheels.

[0008] As a preferred technical solution of this utility model, an electric heating wire is provided inside the transmission tube, and the electric heating wire is spirally wound around the inner wall of the transmission tube.

[0009] As a preferred technical solution of this utility model, the storage box is provided with a screen inside, and two handles are fixedly installed on the top of the screen.

[0010] As a preferred technical solution of this utility model, a heat insulation layer is provided on the periphery of the transmission pipe. The heat insulation layer is made of a material with good heat insulation performance and is tightly wrapped around the outside of the transmission pipe.

[0011] As a preferred technical solution of this utility model, a fence is fixedly installed on the top of the storage box, and the fence is made of carbon steel.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The feeding components are designed with a compact and reasonable layout, providing stable support and ensuring smooth operation. Functionally, they enable automated continuous feeding, accurately delivering raw materials to the injection molding machine's feed point, effectively improving feeding efficiency and reliability, reducing the risk of manual intervention and feeding interruptions, and facilitating efficient injection molding production. 2. The set-in stirring component can effectively solve the problem of raw material clumping and sticking caused by environmental humidity and its own characteristics during the storage of injection molding materials. The stirring shaft driven by the second servo motor drives the stirring rod to fully tumble the raw materials in the storage box, accurately breaking up the clumped raw materials and completely destroying the sticky structure between the raw materials. This keeps the raw materials in a loose and uniform state, which strongly guarantees the quality stability of injection molded products and provides solid support for efficient and high-quality injection molding production. Attached Figure Description

[0013] Figure 1 A schematic diagram of the raw material feeding device for injection molding machines provided by this utility model; Figure 2 Right view of the injection molding machine raw material feeding device provided by this utility model; Figure 3 The raw material feeding device for injection molding machines provided by this utility model Figure 2 A schematic diagram of the three-dimensional cross-sectional structure at point AA; Figure 4 The raw material feeding device for injection molding machines provided by this utility model Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the structure of the enclosure for the raw material feeding device of the injection molding machine provided by this utility model.

[0014] The diagram shows: 1. Transmission pipe; 2. Feeding assembly; 3. Mixing assembly; 201. First servo motor; 202. Transmission shaft; 203. Spiral blade; 204. Feed inlet; 205. Storage bin; 206. Discharge outlet; 207. Discharge hopper; 208. Connecting pipe; 209. Support leg; 210. Support frame; 301. Second servo motor; 302. Mixing shaft; 303. Mixing rod; 4. First caster wheel; 5. Second caster wheel; 6. Electric heating wire; 7. Screen; 8. Handle; 9. Insulation layer; 10. Fence; 11. Base. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0016] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0017] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0018] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0019] like Figure 1 As shown, this embodiment proposes a raw material feeding device for an injection molding machine, including a transmission pipe 1. A feeding component 2 for storing and stably conveying raw materials is fixedly installed on one side of the transmission pipe 1. A stirring component 3 for breaking up the stockpiled state of the raw materials and preventing them from sticking together is provided on one side of the feeding component 2. like Figure 3 and Figure 4 As shown, the feeding assembly 2 includes a first servo motor 201 fixedly mounted on one side of the transmission pipe 1. A transmission shaft 202 is fixedly mounted on the output end of the first servo motor 201. Spiral blades 203 are welded to the periphery of the transmission shaft 202. An inlet 204 is opened on the periphery of the transmission pipe 1. A storage tank 205 is fixedly mounted at the inlet 204. An outlet 206 is opened on the periphery of the transmission pipe 1 away from the inlet 204. A discharge hopper 207 is fixedly mounted on the periphery of the outlet 206. A connecting pipe 208 is provided at one end of the discharge hopper 207. Four support legs 209 are fixedly mounted on the bottom of the storage tank 205. A support frame 210 is fixedly mounted on the periphery of the transmission pipe 1. In use, the storage tank 205 is fixed at the inlet 204 of the transmission pipe 1. To store raw materials, the first servo motor 201 is started. The output of the first servo motor 201 drives the transmission shaft 202 to rotate. Since the transmission shaft 202 has spiral blades 203 welded around its periphery, the rotating spiral blades 203 generate a pushing force. The raw material enters the transmission pipe 1 from the storage box 205. Under the continuous pushing of the spiral blades 203, it moves along the transmission pipe 1 away from the feed port 204. Finally, the raw material reaches the discharge port 206 and falls naturally into the discharge hopper 207 under its own gravity. Then, it is accurately output to the feed port of the injection molding machine through the connecting pipe 208. At the same time, the four support legs 209 at the bottom of the storage box 205 and the support frame 210 around the transmission pipe 1 provide stable support for the entire device, ensuring that the feeding process is carried out smoothly.

[0020] like Figure 4 and Figure 5As shown, the mixing assembly 3 includes a second servo motor 301 fixedly installed on one side of the storage tank 205. A mixing shaft 302 is fixedly installed at the output end of the second servo motor 301. Several mixing rods 303 are welded to the periphery of the mixing shaft 302. During use, due to factors such as environmental humidity and the characteristics of the raw materials themselves, the raw materials of the injection molding machine may clump or stick during storage. If they directly enter the feeding system, it will lead to poor conveying and uneven distribution of raw materials, affecting the quality of injection molded products. When the injection molding machine is working, the second servo motor 301 is started. The output end of the second servo motor 301 drives the mixing shaft 302 to rotate, which in turn causes the several mixing rods 303 welded to the periphery of the mixing shaft 302 to rotate. The mixing rods 303 continuously tumble the raw materials in the storage tank 205, breaking up the clumps of raw materials and destroying the sticky state between the raw materials, so that the raw materials remain in a loose and uniform state, so as to smoothly enter the transmission pipe 1 for subsequent feeding.

[0021] like Figure 5 As shown, the bottom of the support frame 210 is fixedly equipped with two casters 4, and the bottom of the four support legs 209 is fixedly equipped with a base 11. The bottom of the base 11 is fixedly equipped with four casters 5. In use, the two casters 4 at the bottom of the support frame 210 and the four casters 5 under the base 11 of the support legs 209 work together. When it is necessary to move the feeding device, the casters 4 and 5 can rotate flexibly to change the direction of travel of the device, making it easy to move to different positions. This effectively reduces the time and effort spent moving the device, thereby greatly improving the overall work efficiency.

[0022] like Figure 4 As shown, an electric heating wire 6 is installed inside the transmission tube 1. The electric heating wire 6 is spirally wound around the inner wall of the transmission tube 1. When in use, when the power is turned on, the electric heating wire 6 spirally wound around the inner wall of the transmission tube 1 starts to work and heat up. Due to the spiral design, the contact area with the material inside the transmission tube 1 is increased, which can transfer heat to the transmission tube 1 more efficiently. For some injection molding materials that are sensitive to temperature and have poor flowability at low temperatures, the heat provided by the electric heating wire 6 can raise the temperature of the material and reduce its viscosity, so that the material can be transported more smoothly in the transmission tube 1, ensuring continuous and stable material supply.

[0023] like Figure 4 As shown, the storage bin 205 is equipped with a screen 7 inside. Two handles 8 are fixedly installed on the top of the screen 7. When in use, the raw material is poured into the storage bin 205 and falls onto the screen 7. The screen 7 can filter out larger particles or foreign objects mixed in the raw material, ensuring the purity of the raw material entering the subsequent feeding process. When the screen 7 affects the filtering effect due to intercepting too many impurities, the operator can hold the two handles 8 on the top of the screen 7 to remove the screen 7 from the storage bin 205, clean the impurities, and then put it back to ensure stable feeding quality.

[0024] like Figure 4 As shown, a heat insulation layer 9 is provided around the periphery of the transmission pipe 1. The heat insulation layer 9 is made of a material with good heat insulation performance and is tightly wrapped around the outside of the transmission pipe 1. When in use, the electric heating wire 6 inside the transmission pipe 1 will heat up the raw material inside the transmission pipe 1, and the temperature of the wall of the transmission pipe 1 will rise accordingly. The heat insulation layer 9, made of a material with good heat insulation performance, is tightly wrapped around the outside of the transmission pipe 1, which can effectively block the heat from being transferred outward. In this way, when operators work around the equipment, they will not be burned by contact with the wall of the transmission pipe 1, which provides a reliable guarantee for personnel safety and ensures that the entire feeding device operates stably in a safe environment.

[0025] like Figure 5 As shown, a fence 10 is fixedly installed on the top of the storage bin 205. The fence 10 is made of carbon steel. In use, the carbon steel fence 10 fixedly installed on the top of the storage bin 205 mainly serves to increase the overall height of the storage bin 205. During the process of pouring raw materials into the storage bin 205, the fence 10 can form an effective physical barrier to prevent the raw materials from overflowing outside the storage bin 205 due to factors such as excessive pouring angle or operational errors, ensuring that the raw materials fall accurately and safely into the storage bin 205.

[0026] Specifically, in use, the raw material feeding device for this injection molding machine works as follows: the storage bin 205 is fixed at the inlet 204 of the transmission pipe 1 to store raw materials. The first servo motor 201 is started, and its output drives the transmission shaft 202 to rotate. Because spiral blades 203 are welded to the periphery of the transmission shaft 202, the rotating blades generate a pushing force. The raw material enters the transmission pipe 1 from the storage bin 205. Under the continuous pushing of the spiral blades 203, it moves along the transmission pipe 1 away from the inlet 204. Finally, the raw material reaches the outlet 206 and, under its own gravity, naturally falls into the outlet hopper 207, and is then precisely output to the injection molding machine's feed point via the connecting pipe 208. Simultaneously, the four support legs 209 at the bottom of the storage bin 205 and the support frame 210 around the transmission pipe 1 provide stable support for the entire device, ensuring a smooth feeding process (e.g., ...). Figure 3 and Figure 4 As shown), during the storage of injection molding raw materials, factors such as environmental humidity and the characteristics of the raw materials themselves may cause clumping and sticking. If these materials are directly fed into the feeding system, it will lead to poor conveying and uneven distribution of raw materials, affecting the quality of the injection molded products. When the injection molding machine is working, the second servo motor 301 is started. The output end of the second servo motor 301 drives the stirring shaft 302 to rotate, which in turn causes several stirring rods 303 welded to the periphery of the stirring shaft 302 to rotate. The stirring rods 303 continuously tumble the raw materials in the storage box 205, breaking up the clumped raw materials and disrupting the sticky state between the raw materials, so that the raw materials remain in a loose and uniform state, so that they can smoothly enter the transmission pipe 1 for subsequent feeding (such as...). Figure 4and Figure 5 (As shown).

[0027] All technical features in this embodiment can be freely combined according to actual needs.

[0028] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A raw material feeding device for an injection molding machine, comprising a transmission pipe (1), characterized in that, A feeding assembly (2) for storing and stably conveying raw materials is fixedly installed on one side of the transmission pipe (1), and a stirring assembly (3) for breaking up the piled-up state of the feed material and preventing the raw materials from sticking together is provided on one side of the feeding assembly (2). The feeding assembly (2) includes a first servo motor (201) fixedly installed on one side of the transmission pipe (1), a transmission shaft (202) fixedly installed at the output end of the first servo motor (201), a spiral blade (203) welded to the periphery of the transmission shaft (202), a feed inlet (204) opened on the periphery of the transmission pipe (1), a storage box (205) fixedly installed at the feed inlet (204), a discharge port (206) opened on the periphery of the transmission pipe (1) away from the feed inlet (204), a discharge hopper (207) fixedly installed on the periphery of the discharge port (206), a connecting pipe (208) provided at one end of the discharge hopper (207), four support legs (209) fixedly installed at the bottom of the storage box (205), and a support frame (210) fixedly installed on the periphery of the transmission pipe (1).

2. The raw material feeding device for an injection molding machine according to claim 1, characterized in that, The stirring assembly (3) includes a second servo motor (301) fixedly installed on one side of the storage tank (205), and a stirring shaft (302) fixedly installed at the output end of the second servo motor (301). Several stirring rods (303) are welded to the periphery of the stirring shaft (302).

3. The raw material feeding device for an injection molding machine according to claim 1, characterized in that, The bottom of the support frame (210) is fixedly equipped with two casters (4), and the bottom of the four support legs (209) is fixedly equipped with a base (11), and the bottom of the base (11) is fixedly equipped with four casters (5).

4. The raw material feeding device for an injection molding machine according to claim 1, characterized in that, The transmission tube (1) is provided with an electric heating wire (6) inside, and the electric heating wire (6) is spirally wound around the inner wall of the transmission tube (1).

5. The raw material feeding device for an injection molding machine according to claim 1, characterized in that, The storage bin (205) is equipped with a screen (7) inside, and two handles (8) are fixedly installed on the top of the screen (7).

6. The raw material feeding device for an injection molding machine according to claim 1, characterized in that, A heat insulation layer (9) is provided around the periphery of the transmission pipe (1). The heat insulation layer (9) is made of a material with good heat insulation performance and is tightly wrapped around the outside of the transmission pipe (1).

7. The raw material feeding device for an injection molding machine according to claim 1, characterized in that, The top of the storage bin (205) is fixedly equipped with a fence (10), which is made of carbon steel.

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