Water gap material recycling system
By designing a sprue recycling and reuse system, and using a regulating proportional valve and a quantitative hopper to precisely control the amount of sprue and raw materials fed in, the problem of inconsistent quality in injection molded products was solved, and the stability and uniformity of injection molded products were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-03-24
AI Technical Summary
In existing technologies, it is difficult to control the proportion of sprue and raw materials when they enter the injection molding machine, which makes it difficult to maintain consistent quality in injection molded products.
A sprue material recycling and reuse system was designed, including a crusher, a sprue material bin, a raw material bin, a dryer, a drying box, a material extractor, and a mixer. The amount of sprue material and raw material fed in is precisely controlled by adjusting the proportional valve and the quantitative hopper, and the amount of material in the storage bin is monitored in real time by the material sensor to ensure uniform mixing and injection molding.
It achieves precise proportioning of sprue material and raw materials, ensuring the uniformity and stability of injection molded product quality, and improving the accuracy and control of material feeding.
Smart Images

Figure CN224028227U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sprue material recycling technology, specifically a sprue material recycling and reuse system. Background Technology
[0002] In the current injection molding process, in order to reduce costs and improve resource utilization, sprue material is added to the raw materials and then mixed before being used in the injection molding machine.
[0003] Among the relevant technologies, a sprue recycling system (announcement number CN208052357U) was found. The sprue is crushed by a crusher and then conveyed to a cyclone dust collector for dust removal. Large particles of sprue are then separated by a filter tube. The remaining sprue particles reach the collection pipe and are then mixed with the raw materials by a mixing device before entering the injection molding machine. This avoids the mixing of dust and large particles of sprue with the raw materials, ensuring the quality of the injection molded product.
[0004] However, when using sprue material in the above solution, it is difficult to control the ratio of sprue material and raw material entering the injection molding machine. The only solution is to mix the sprue material and raw material, which makes it difficult to maintain consistent product quality. Utility Model Content
[0005] The purpose of this invention is to provide a system for recycling and reusing sprue material to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a sprue material recycling and reuse system, comprising a crusher, a sprue material bin, a raw material bin, a dryer, a drying box, a material extractor, and a mixer, wherein the crusher is connected to the sprue material bin and can crush the sprue material;
[0007] The raw material box and the dryer are respectively connected to the drying box, and the raw material can be dried by the dryer;
[0008] The material extractor is connected to a storage tank. The upper side wall of the storage tank is equipped with an adjusting proportional valve. The adjusting proportional valve is electrically connected to the material extractor and is connected to the sprue material box and the drying box. The material extractor can transport the sprue material in the sprue material box and the raw material in the drying box to the storage tank. By adjusting the proportional valve, the amount of sprue material and raw material used can be set according to the needs, making the use more flexible.
[0009] The storage tank is connected to a mixer at the bottom. The mixer is equipped with an injection molding machine barrel, which is connected to the mixer. The mixer mixes the sprue material and raw materials to ensure that the sprue material and raw materials are mixed evenly. The sprue material produced by injection molding is fed into a shredder to realize the recycling and reuse of the sprue material.
[0010] Furthermore, a dust filter is connected between the crusher and the sprue hopper. A dust bag is provided below the dust filter, which can filter small particles and dust in the sprue into the dust bag.
[0011] Furthermore, a sprue discharge valve is provided below the sprue hopper, and a raw material discharge valve is provided below the drying hopper. The sprue discharge valve can precisely control the amount of sprue material discharged from the sprue hopper, and the raw material discharge valve can precisely control the amount of raw material discharged from the drying hopper, ensuring that the raw material can enter the subsequent processing stage according to the set flow rate and time. The sprue discharge valve and the raw material discharge valve are electrically connected to the material extractor. Through the electrical connection, the material extractor can automatically control the opening and closing of the discharge valve according to the preset program or real-time production needs.
[0012] Furthermore, a first quantitative hopper is connected between the sprue material discharge valve and the regulating proportional valve. Through the precise control of the quantitative hopper, the amount of sprue material fed each time can be kept consistent, avoiding material quantity deviation caused by flow fluctuations or insufficient accuracy of the discharge valve.
[0013] Furthermore, a second quantitative hopper is connected between the raw material discharge valve and the regulating proportion valve. Similar to the first quantitative hopper, the second quantitative hopper can ensure that the amount of raw material fed each time remains consistent, thereby further improving the accuracy of material feeding.
[0014] Furthermore, the storage hopper is equipped with a material sensor, which can detect the amount of material in the storage hopper in real time to ensure that the material supply is always under control. When the material amount is lower than the set minimum value, the sensor can send a signal to prompt the system to replenish the material; when the material amount reaches the set maximum value, the sensor will send a signal to stop the further addition of material.
[0015] Compared with the prior art, the beneficial effects of this utility model are: the feeding time controller controls the feeding time of the quantitative hopper and the first hopper, thereby controlling the amount of sprue material and raw material used; the feeder extracts sprue material and raw material respectively; the sprue material and raw material first pass through the proportional valve and then enter the storage tank; the proportional valve controls the ratio of sprue material and raw material, and can be adjusted according to needs, which helps to control the uniformity and stability of injection molded product quality. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] In the diagram: 1. Crusher; 2. Dust filter; 3. Dust bag; 4. Sprue hopper; 5. Sprue discharge valve; 6. First quantitative hopper; 7. Raw material bin; 8. Dryer; 9. Drying box; 10. Raw material discharge valve; 11. Second quantitative hopper; 12. Feeder; 13. Adjusting proportional valve; 14. Storage tank; 15. Material sensor; 16. Mixer; 17. Injection molding machine barrel. 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] Example:
[0020] Please see Figure 1 This utility model provides a technical solution: a sprue material recycling and reuse system, including a crusher 1, a sprue material box 4, a raw material box 7, a dryer 8, a drying box 9, a material extractor 12, and a mixer 16. The crusher 1 is connected to the sprue material box 4, and the sprue material can be crushed by the crusher 1.
[0021] In this embodiment, as Figure 1 As shown, the raw material bin 7 and the dryer 8 are connected to the drying box 9, respectively. The raw material can be dried by the dryer 8. The material extractor 12 is connected to the storage bin 14. The upper side wall of the storage bin 14 is equipped with an adjusting proportion valve 13. The adjusting proportion valve 13 is electrically connected to the material extractor 12 and is connected to the sprue bin 4 and the drying box 9. The material extractor 12 can transport the sprue material in the sprue bin 4 and the raw material in the drying box 9 into the storage bin 14. By adjusting the proportion valve 13, the amount of sprue material and raw material used can be set according to the needs, making the use more flexible. The storage bin 14 is connected to the mixer 16 at the bottom. The mixer 16 is equipped with an injection molding machine barrel 17. The injection molding machine barrel 17 is connected to the mixer 16. The mixer 16 mixes the sprue material and raw material to ensure that the sprue material and raw material are mixed evenly. The sprue material produced by injection molding enters the crusher 1 to realize the recycling and reuse of the sprue material.
[0022] In this embodiment, as Figure 1 As shown, a dust filter device 2 is also connected between the crusher 1 and the sprue hopper 4. A dust bag 3 is provided below the dust filter device 2. The dust filter device 2 can filter small particles and dust in the sprue into the dust bag 3.
[0023] In this embodiment, as Figure 1As shown, a sprue material discharge valve 5 is provided below the sprue material box 4, and a raw material discharge valve 10 is provided below the drying box 9. The sprue material discharge valve 5 can precisely control the amount of sprue material discharged from the sprue material box 4, and the raw material discharge valve 10 can precisely control the amount of raw material discharged from the drying box 9, ensuring that the raw material can enter the subsequent processing stage according to the set flow rate and time. The sprue material discharge valve 5 and the raw material discharge valve 10 are electrically connected to the material extractor 12. Through the electrical connection, the material extractor 12 can automatically control the opening and closing of the discharge valves according to the preset program or real-time production needs.
[0024] In this embodiment, as Figure 1 As shown, a first quantitative hopper 6 is also connected between the sprue material discharge valve 5 and the regulating proportional valve 13. Through the precise control of the quantitative hopper, the amount of sprue material fed each time can be kept consistent, avoiding material quantity deviation caused by flow fluctuations or insufficient accuracy of the discharge valve.
[0025] In this embodiment, as Figure 1 As shown, a second quantitative hopper 11 is also connected between the raw material discharge valve 10 and the regulating proportional valve 13. Similar to the first quantitative hopper 6, the second quantitative hopper 11 can ensure that the amount of raw material fed each time is consistent, thereby further improving the accuracy of material feeding.
[0026] In this embodiment, as Figure 1 As shown, a material sensor 15 is provided on the storage tank 14. The material sensor 15 can detect the amount of material in the storage tank 14 in real time to ensure that the supply of material is always under control. When the amount of material is lower than the set minimum value, the sensor can send a signal to prompt the system to replenish the material. When the amount of material reaches the set maximum value, the sensor will send a signal to stop the further addition of material.
[0027] In this embodiment, the specific working principle is as follows: the crusher 1 crushes the sprue material, and the sprue material is then filtered by the dust filter device 2 to filter small particles and dust into the dust bag 3. Large particles enter the sprue material box 4. There is a sprue material discharge valve 5 at the bottom of the sprue material box 4. When the sprue material discharge valve 5 is opened, the sprue material is temporarily stored in the first quantitative hopper 6. The sprue material temporarily stored in the first quantitative hopper 6 is pumped into the storage tank 14 by the pump 12.
[0028] The material extraction device inside the drying box 9 draws the raw materials from the raw material box into the drying box 9. The drying box 9 is connected to the dryer 8, which is used to dry the raw materials. The dried raw materials are opened by the raw material discharge valve 10 and enter the second quantitative hopper 11, waiting for the material extraction machine 12 to draw them into the storage tank 14. The sprue material and raw materials first pass through the adjusting proportion valve 13 and then enter the storage tank 14. The adjusting proportion valve 13 controls the ratio of sprue material and raw materials.
[0029] A material sensor 15 is installed on the storage tank 14. The material sensor 15 can detect the amount of material in the storage tank in real time to ensure that the material supply is always under control. When the material amount is lower than the set minimum value, the sensor can send a signal to prompt the system to replenish the material; when the material amount reaches the set maximum value, the sensor will send a signal to stop the further addition of material. During the production process, the material in the storage tank 14 will enter the mixer 16 for mixing, and finally flow into the injection molding machine barrel 17 to supply material for injection molding of the product. The sprue material generated by injection molding will then enter the shredder 1 for recycling.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A system for recycling and reusing sprue material, characterized in that, The assembly includes a crusher (1), a sprue hopper (4), a raw material hopper (7), a dryer (8), a drying chamber (9), a material extractor (12), and a mixer (16). The crusher (1) is connected to the sprue hopper (4). The raw material hopper (7) and the dryer (8) are respectively connected to the drying chamber (9). The material extractor (12) is connected to a storage tank (14). The upper side wall of the storage tank (14) is provided with a proportional adjustment valve (13). The proportional adjustment valve (13) is electrically connected to the material extractor (12). The proportional adjustment valve (13) is connected to the sprue hopper (4) and the drying chamber (9). The storage tank (14) is connected to the mixer (16) at the bottom. The mixer (16) is provided with an injection molding machine barrel (17). The injection molding machine barrel (17) is connected to the mixer (16).
2. The sprue material recycling and reuse system according to claim 1, characterized in that: A dust filter device (2) is also connected between the crusher (1) and the sprue hopper (4), and a dust bag (3) is provided below the dust filter device (2).
3. The sprue material recycling and reuse system according to claim 1, characterized in that: A sprue discharge valve (5) is provided below the sprue hopper (4), and a raw material discharge valve (10) is provided below the drying hopper (9). The sprue discharge valve (5) and the raw material discharge valve (10) are electrically connected to the feeder (12).
4. The sprue material recycling and reuse system according to claim 3, characterized in that: The sprue discharge valve (5) and the regulating proportional valve (13) are also connected by a first quantitative hopper (6).
5. The sprue material recycling and reuse system according to claim 3, characterized in that: A second quantitative hopper (11) is also connected between the raw material discharge valve (10) and the regulating proportion valve (13).
6. The sprue material recycling and reuse system according to claim 1, characterized in that: The storage hopper (14) is equipped with a material sensor (15).
Citation Information
Patent Citations
Mouth of a river material recovery system
CN208052357U