Injection molding machine capable of pretreating material particles
By introducing a material distribution box and a preheating box into the injection molding machine for screening and preheating, the problem of mismatched heating times for particles of different sizes is solved, reducing energy consumption and improving work efficiency and processing quality.
Patent Information
- Application Number
- CN202520311301.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-02-26
AI Technical Summary
Existing injection molding machines cannot screen the granules, resulting in mismatched heating times for granules of different sizes, leading to energy waste.
An injection molding machine including a material distribution box, a preheating box, and a feeding cylinder was designed. The material particles are screened and preheated by a screen and a filter screen. The heating and melting time is adjusted according to the particle size, and the surface dust is removed by a hot air blower.
This technology allows for adjusting heating time based on particle size, reducing energy consumption and improving work efficiency and product processing quality.
Smart Images

Figure CN223849810U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molding machine technology, and in particular to an injection molding machine capable of pre-treating granules. Background Technology
[0002] Injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. They are classified as vertical, horizontal, and all-electric. Injection molding machines heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.
[0003] A search revealed that utility model patent CN219445897U discloses "an injection molding machine capable of pre-treating granules." This injection molding machine, capable of pre-treating granules, uses a combination of a motor and a stirring structure, along with a water inlet, to thoroughly clean the granules. The stirring structure effectively removes dust from the granule surface, preventing clogging of the injection head and improving work efficiency. After washing, a second motor, in conjunction with a conveyor, guides the granules into a dryer. A heating plate, along with a fan and vents, effectively removes excess heat. A filter plate effectively blocks the granules, preventing them from being blown into the vents. The dryer not only removes residual moisture after washing but also preheats the granules, further improving work efficiency. The granules then enter the injection molding machine for processing, significantly enhancing efficiency and demonstrating high practicality.
[0004] The device cannot screen the material particles. Different particle sizes require different heating times, with larger particles requiring longer heating times and smaller particles requiring shorter heating times. When mixing particles of different sizes, the heating time must be adjusted according to that of the larger particles, which is energy-intensive.
[0005] Therefore, it is necessary to provide an injection molding machine capable of pre-treating the granules to solve the above-mentioned technical problems. Utility Model Content
[0006] This invention provides an injection molding machine capable of pre-treating granules, solving the problem that when mixing granules of different sizes, heating and melting must be performed according to the heating time of the larger granules, which is energy-intensive.
[0007] To solve the above-mentioned technical problems, this utility model provides an injection molding machine capable of pre-treating granules, comprising: a base;
[0008] The upper end of the base is provided with the injection molding machine body, and a material distribution box is fixedly connected to the upper end of the base. A feeding hopper is fixedly connected to the front of the material distribution box. A first screen and a second screen are fixedly connected inside the material distribution box. A first discharge port and a second discharge port are opened on the back of the material distribution box. A side plate is fixedly connected to the back of the material distribution box. A telescopic cylinder is provided at the upper end of the side plate. A baffle box is fixedly connected to the output end of the telescopic cylinder. A feeding port is opened on the front of the baffle box. A discharge port is opened at the bottom of the baffle box. A limit rod is fixedly connected to the upper end of the baffle box, and two sets of limit rods are provided. The limit rods are slidably connected to the side plate.
[0009] Preferably, a preheating box is provided at the upper end of the base, the baffle box is slidably connected to the preheating box, a first filter screen is fixedly connected inside the preheating box, and a connecting pipe is fixedly connected to the back of the preheating box.
[0010] Preferably, a hot air blower is provided at the upper end of the preheating box, an air duct is fixedly connected to the output end of the hot air blower, and an air cover is fixedly connected to the bottom end of the air duct.
[0011] Preferably, a collection box is slidably connected inside the preheating box, and a second filter screen is provided on the left side of the collection box.
[0012] Preferably, a feeding cylinder is provided at the upper end of the base, the feeding cylinder is fixedly connected to the connecting pipe, and a screw rod is rotatably connected inside the feeding cylinder.
[0013] Preferably, a motor is fixedly connected to the upper end of the feeding cylinder, and the output end of the motor is fixedly connected to the screw rod.
[0014] Compared with related technologies, the injection molding machine provided by this utility model, which can pre-treat granules, has the following beneficial effects:
[0015] This invention provides an injection molding machine capable of pre-treating granules. The material is fed into the hopper and flows into the distribution box. Smaller granules, sieved through the first screen, fall above the second screen. Fine dust and other particles pass through the second screen and fall off. When the inlet aligns with the first outlet, larger particles enter the baffle box and fall out of the discharge port. When the inlet aligns with the second outlet, the material above the second screen enters the baffle box and falls out of the discharge port. This structure allows for granule screening, enabling adjustment of the heating and melting time based on particle size, thereby reducing energy consumption. After the material falls through the feed port, it enters the preheating chamber. At this point, the material falls above the first filter screen and then rolls down along the first filter screen into the connecting pipe. After entering the preheating chamber, the material is heated by the hot air generated by the hot air blower. At the same time, the hot air can blow away the dust on the surface of the material, and the dust will fall into the collection box. The material heated by the hot air enters the feeding cylinder after passing through the connecting pipe. At this time, the motor drives the screw to rotate, which can transport the material in the feeding cylinder upward. When the material is transported to the top, it can fall into the material trough of the injection molding machine body. This structure can preheat the material particles and clean the surface dust, which helps to improve work efficiency and the quality of product processing. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a preferred embodiment of an injection molding machine capable of pre-treating granules, provided by this utility model.
[0017] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the material distribution box shown in the left view;
[0018] Figure 3 for Figure 1 The diagram shows the structure of the baffle box.
[0019] Figure 4 for Figure 1 The diagram shows a cross-sectional view of the preheating box from the left.
[0020] The following are the labels in the diagram: 1. Base; 2. Injection molding machine body; 3. Material distribution box; 4. Feed hopper; 5. First screen; 6. Second screen; 7. First discharge port; 8. Second discharge port; 9. Side plate; 10. Telescopic cylinder; 11. Material retaining box; 12. Feed port; 13. Discharge port; 14. Limiting rod; 15. Preheating box; 16. First filter screen; 17. Connecting pipe; 18. Hot air blower; 19. Air duct; 20. Air cover; 21. Collection box; 22. Second filter screen; 23. Feeding cylinder; 24. Screw rod; 25. Motor. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in Figure 1 This is a schematic diagram of a preferred embodiment of an injection molding machine capable of pre-treating granules, provided by this utility model. Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the material distribution box shown in the left view; Figure 3 for Figure 1 The diagram shows the structure of the baffle box.
[0023] Figure 4 for Figure 1 The left view of the preheating box shown is a cross-sectional structural diagram. An injection molding machine capable of pre-treating granules includes: a base 1;
[0024] The upper part of the base 1 is provided with the injection molding machine body 2. The upper part of the base 1 is fixedly connected with the material distribution box 3. The front of the material distribution box 3 is fixedly connected with the feed hopper 4. The inside of the material distribution box 3 is fixedly connected with the first screen 5 and the second screen 6. The back of the material distribution box 3 has a first discharge port 7 and a second discharge port 8. The back of the material distribution box 3 is fixedly connected with the side plate 9. The upper part of the side plate 9 is provided with the telescopic cylinder 10. The output end of the telescopic cylinder 10 is fixedly connected with the baffle box 11. The front of the baffle box 11 has the feed port 12 and the bottom of the baffle box 11 has the discharge port 13. The upper part of the baffle box 11 is fixedly connected with the limit rod 14, and there are two sets of limit rods 14. The limit rod 14 is slidably connected to the side plate 9.
[0025] A preheating box 15 is provided on the upper end of the base 1. The baffle box 11 is slidably connected to the preheating box 15. A first filter screen 16 is fixedly connected inside the preheating box 15. A connecting pipe 17 is fixedly connected to the back of the preheating box 15.
[0026] A hot air blower 18 is installed at the upper end of the preheating box 15. A duct 19 is fixedly connected to the output end of the hot air blower 18, and a fan cover 20 is fixedly connected to the bottom end of the duct 19.
[0027] A collection box 21 is slidably connected inside the preheating box 15, and a second filter screen 22 is provided on the left side of the collection box 21.
[0028] The upper end of the base 1 is provided with a feeding cylinder 23, which is fixedly connected to the connecting pipe 17. The feeding cylinder 23 is rotatably connected to a screw rod 24. The upper end of the feeding cylinder 23 is provided with a discharge port, which is located above the material trough of the injection molding machine body 2.
[0029] A motor 25 is fixedly connected to the upper end of the feeding cylinder 23, and the output end of the motor 25 is fixedly connected to the screw rod 24.
[0030] The working principle of the injection molding machine capable of pre-treating granules provided by this utility model is as follows:
[0031] Step 1: When using the material, put it into the feed hopper 4. The material will enter the distribution box 3 along the feed hopper 4. At this time, the smaller particles that have been screened by the first screen 5 will fall above the second screen 6. Fine dust and other substances will pass through the second screen 6 and fall off. When the feed inlet 12 is aligned with the first discharge outlet 7, the larger particles will enter the baffle box 11 and then fall off from the discharge outlet 13. When the feed inlet 12 is aligned with the second discharge outlet 8, the material above the second screen 6 will enter the baffle box 11 and then fall off from the discharge outlet 13.
[0032] Step 2: After the material falls through the discharge port 13, it enters the preheating box 15. At this time, the material falls above the first filter screen 16 and then rolls down along the first filter screen 16 into the connecting pipe 17. After entering the preheating box 15, the material is heated by the hot air generated by the hot air blower 18. At the same time, the hot air can blow away the dust on the surface of the material, and the dust will fall into the collection box 21. The material heated by the hot air enters the feeding cylinder 23 after passing through the connecting pipe 17. At this time, the motor 25 drives the screw rod 24 to rotate, which can transport the material inside the feeding cylinder 23 upward. When the material is transported to the top, it can fall into the material trough of the injection molding machine body 2.
[0033] Compared with related technologies, the injection molding machine provided by this utility model, which can pre-treat granules, has the following beneficial effects:
[0034] Material is placed into the feed hopper 4 and flows into the distribution box 3. Smaller particles, screened by the first screen 5, fall above the second screen 6. Fine dust and other particles pass through the second screen 6 and fall off. When the feed inlet 12 aligns with the first discharge outlet 7, larger particles enter the baffle box 11 and then fall through the discharge outlet 13. When the feed inlet 12 aligns with the second discharge outlet 8, the material above the second screen 6 enters the baffle box 11 and then falls through the discharge outlet 13. This structure allows for particle screening, enabling adjustment of the heating and melting time based on particle size, thereby reducing energy consumption. After falling through the discharge outlet 13, the material... Upon entering the preheating chamber 15, the material falls onto the first filter screen 16 and then rolls down along the first filter screen 16 into the connecting pipe 17. After entering the preheating chamber 15, the material is heated by the hot air generated by the hot air blower 18. At the same time, the hot air can blow away the dust on the surface of the material, and the dust will fall into the collection box 21. The material heated by the hot air enters the feeding cylinder 23 after passing through the connecting pipe 17. At this time, the screw rod 24 driven by the motor 25 can rotate to transport the material in the feeding cylinder 23 upward. When the material is transported to the top, it can fall into the material trough of the injection molding machine body 2. This structure can preheat the material particles and clean the surface dust, which is beneficial to improving work efficiency and the quality of product processing.
[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An injection molding machine capable of pre-treating a pellet, characterized by, Include: Base (1); The upper end of the base (1) is provided with an injection molding machine body (2), the upper end of the base (1) is fixedly connected with a distribution box (3), the front surface of the distribution box (3) is fixedly connected with a feed hopper (4), the inside of the distribution box (3) is fixedly connected with a first screen (5), the inside of the distribution box (3) is fixedly connected with a second screen (6), the back surface of the distribution box (3) is provided with a first discharge port (7), the back surface of the distribution box (3) is provided with a second discharge port (8), the back surface of the distribution box (3) is fixedly connected with a side plate (9), the upper end of the side plate (9) is provided with a telescopic air cylinder (10), the output end of the telescopic air cylinder (10) is fixedly connected with a blocking box (11), the front surface of the blocking box (11) is provided with a feed port (12), the bottom of the blocking box (11) is provided with a discharge port (13), the upper end of the blocking box (11) is fixedly connected with a limiting rod (14), and the limiting rod (14) is provided with two groups, and the limiting rod (14) is slidably connected with the side plate (9).
2. The injection molding machine capable of pre-treating pellets according to claim 1, characterized in that, The upper end of the base (1) is provided with a preheating box (15), the blocking box (11) is slidably connected with the preheating box (15), the inside of the preheating box (15) is fixedly connected with a first filter screen (16), the back surface of the preheating box (15) is fixedly connected with a connecting pipe (17).
3. The injection molding machine capable of pre-treating pellets according to claim 2, characterized in that, The upper end of the preheating box (15) is provided with a hot air fan (18), the output end of the hot air fan (18) is fixedly connected with an air pipe (19), and the bottom end of the air pipe (19) is fixedly connected with a fan cover (20).
4. The injection molding machine capable of pre-treating pellets according to claim 3, characterized in that, The inside of the preheating box (15) is slidably connected with a collecting box (21), and the left side of the collecting box (21) is provided with a second filter screen (22).
5. The injection molding machine capable of pre-treating the pellets according to claim 4, characterized in that, The upper end of the base (1) is provided with a feeding cylinder (23), the feeding cylinder (23) is fixedly connected with the connecting pipe (17), and the inside of the feeding cylinder (23) is rotatably connected with a screw rod (24).
6. The injection molding machine capable of pre-treating pellets according to claim 5, characterized in that, The upper end of the feeding cylinder (23) is fixedly connected with a motor (25), and the output end of the motor (25) is fixedly connected with the screw rod (24).
Citation Information
Patent Citations
Injection molding machine capable of pretreating material particles
CN219445897U