A feeding device for an injection molding machine

Abstract

The utility model belongs to injection molding machine technical field especially for a kind of feeding device for injection molding machine, including comminution feed hopper and support plate, the lower portion of comminution feed hopper is provided with hopper, the bottom of hopper is provided with conveying cylinder, the inside of comminution feed hopper is separately provided with support rod, one end of support rod is connected with motor box, and the top of motor box is arc, the inside of motor box is provided with third motor. Make cam to drive screening disc to shake through protruding block, pass and come back to shake, thereby to the granule is filtered, small granule raw material falls into the inside of hopper, and large granule raw material remains in the inside of comminution feed hopper, pass through third motor and drive comminution knife to rotate by second rotating shaft, so that it is to large granule raw material is comminuted, and the raw material after comminution falls down by screening disc, by its operation, so that the raw material of feeding is all fine granule, avoid raw material to exist large granule, lead to influence use effect.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding machine technology, specifically relating to a feeding device for injection molding machines. 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] When using an injection molding machine, the raw material granules need to be transported into the machine through a feeding device. However, ordinary injection molding machines cannot process these raw material granules, resulting in large particles inside the machine, which affects the performance. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a feeding device for injection molding machines, which solves the problem of the inability to process raw material particles, resulting in the presence of large particles inside the machine and thus affecting the performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a feeding device for an injection molding machine, comprising a crushing feed hopper and a support plate, a discharge hopper below the crushing feed hopper, a conveying cylinder at the bottom of the discharge hopper, support rods inside the crushing feed hopper, one end of each support rod connected to a motor housing, the top of the motor housing being arc-shaped, a third motor inside the motor housing, the output end of the third motor connected to a second rotating shaft, crushing blades on the surface of the second rotating shaft, a screening disc at the bottom of the crushing feed hopper, a groove at the top of the screening disc, protrusions inside the groove, and a cam at the bottom of the second rotating shaft, the cam being located inside the groove.

[0006] Preferably, a connecting frame is provided around the bottom of the crushing feed hopper, and bolts are provided at both ends of the connecting frame, with one end of the bolt passing through the connecting frame and threadedly connected to the crushing feed hopper and the discharge hopper respectively.

[0007] Preferably, springs are provided around the circumference of the screening disc, and one end of each spring is connected to the connecting frame.

[0008] Preferably, a second motor is provided at one end of the conveying cylinder, and a third rotating shaft is connected to the output end of the second motor. The surface of the third rotating shaft is provided with spiral blades.

[0009] Preferably, the other end of the conveying cylinder is threadedly connected to a connecting ring, and one end of the connecting ring is movably connected to the connecting cylinder.

[0010] Preferably, a first motor is provided at one end of the support plate, the output end of the first motor is connected to a first rotating shaft, connecting columns are provided on both sides of the hopper, one end of the first rotating shaft is fixedly connected to the connecting column, one end of the connecting column is movably connected to a connecting shaft, and one end of the connecting shaft is connected to the support plate.

[0011] Preferably, the bottom of the support plate is provided with a connecting plate, and the two ends of the connecting plate are respectively provided with connecting holes.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] During operation, raw material particles enter the crushing feed hopper, activating the third motor. This motor, via the second rotating shaft, drives the cam to rotate, causing the cam to vibrate the screening disc through the protrusion. This back-and-forth vibration filters the particles, with smaller particles falling into the discharge hopper, while larger particles remain inside. The third motor, through the second rotating shaft, drives the crushing blades to rotate, further crushing the larger particles. The crushed material then falls through the screening disc. This process ensures that the fed raw materials consist entirely of fine particles, preventing the presence of large particles that could affect the performance. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a first three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a second three-dimensional structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the spiral blade of this utility model;

[0018] Figure 4 This is a schematic diagram of the cam of this utility model.

[0019] In the diagram: 1. Crushing feed hopper; 2. Connecting frame; 3. First motor; 4. First rotating shaft; 5. Feed hopper; 6. Second motor; 7. Connecting plate; 8. Support plate; 9. Connecting shaft; 10. Connecting column; 11. Connecting ring; 12. Connecting cylinder; 13. Connecting hole; 14. Conveying cylinder; 15. Crushing blade; 16. Support rod; 17. Motor box; 18. Second rotating shaft; 19. Third rotating shaft; 20. Spiral blade; 21. Spring; 22. Bolt; 23. Screening disc; 24. Groove; 25. Cam; 26. Protrusion. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 The present invention provides the following technical solution: a feeding device for an injection molding machine, comprising a crushing feed hopper 1 and a support plate 8, a feeding hopper 5 is provided below the crushing feed hopper 1, a conveying cylinder 14 is provided at the bottom of the feeding hopper 5, support rods 16 are respectively provided inside the crushing feed hopper 1, one end of the support rods 16 is connected to a motor housing 17, and the top of the motor housing 17 is arc-shaped, a third motor is provided inside the motor housing 17, the output end of the third motor is connected to a second rotating shaft 18, crushing blades 15 are respectively provided on the surface of the second rotating shaft 18, a screening plate 23 is provided at the bottom of the crushing feed hopper 1, a groove 24 is provided on the top of the screening plate 23, a protrusion 26 is provided inside the groove 24, and a cam 25 is provided at the bottom of the second rotating shaft 18, and the cam 25 is located inside the groove 24.

[0022] In this embodiment, a spring 21 is used to restrict and tighten the screening disc 23, thereby restricting its movement and allowing it to swing back and forth, thus increasing its effectiveness.

[0023] In this embodiment, the crushing feed hopper 1 and the discharge hopper 5 are connected by setting a connecting frame 2 and bolts 22, thereby increasing the stability of the connection.

[0024] In this embodiment, the top of the motor housing 17 is set in an arc shape to prevent particles from remaining on its top.

[0025] In this embodiment: during use, the connecting ring 11 is threadedly connected to the conveying cylinder 14, thereby increasing the stability of the connection.

[0026] In this embodiment, the device is fixed by setting the connecting plate 7, the support plate 8, and the connecting hole 13, thereby increasing its stability during use.

[0027] The working principle and usage process of this utility model are as follows: After installation, when in use, raw material particles enter the crushing feed hopper 1, activating the third motor. This motor, via the second rotating shaft 18, drives the cam 25 to rotate, causing the cam 25 to vibrate through the protrusion 26 and the screening disc 23. This back-and-forth vibration filters the particles, with smaller particles falling into the discharge hopper 5, while larger particles remain in the crushing feed hopper 1. The third motor, via the second rotating shaft 18, drives the crushing blade 15 to rotate, crushing the larger particles. The crushed material then falls through the screening disc 23. This operation ensures that the fed material consists entirely of fine particles, preventing the presence of large particles that could affect the performance. When the particles fall into the conveyor cylinder 14... After the material is fed into the machine, the second motor 6 is activated, which drives the spiral blade 20 to rotate via the third rotating shaft 19. The spiral blade 20 then conveys the raw material particles, increasing the convenience of feeding. A connecting ring 11 and a connecting cylinder 12 are provided, with the connecting cylinder 12 positioned at the injection molding machine inlet to enhance the connection effect. The first motor 3 is activated, which drives the hopper 5 to move via the first rotating shaft 4, thereby adjusting the angle of the connecting cylinder 12. This allows the connecting cylinder 12 to better contact the injection molding machine inlet and enables the connecting cylinder 12 to be movably connected to the connecting ring 11, thus allowing for angle adjustment and increasing the flexibility of use. All electrical equipment in this device is powered by an external power source, and all motors in this device are connected and controlled by a PLC control system.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A feeding device for an injection molding machine, comprising a crushing feed hopper (1) and a support plate (8), characterized in that: Below the crushing feed hopper (1) is a feeding hopper (5), and at the bottom of the feeding hopper (5) is a conveying cylinder (14). Inside the crushing feed hopper (1) are support rods (16), one end of the support rods (16) is connected to a motor housing (17), and the top of the motor housing (17) is arc-shaped. Inside the motor housing (17) is a third motor, and the output end of the third motor is connected to a second rotating shaft (18). On the surface of the second rotating shaft (18) are crushing blades (15). At the bottom of the crushing feed hopper (1) is a screening disc (23), and at the top of the screening disc (23) is a groove (24). Inside the groove (24) are protrusions (26). At the bottom of the second rotating shaft (18) is a cam (25), and the cam (25) is located inside the groove (24).

2. The feeding device for an injection molding machine according to claim 1, characterized in that: Connecting frames (2) are provided around the bottom of the crushing feed hopper (1). Bolts (22) are provided at both ends of the connecting frames (2). One end of the bolts (22) passes through the connecting frames (2) and is threadedly connected to the crushing feed hopper (1) and the discharge hopper (5).

3. The feeding device for an injection molding machine according to claim 1, characterized in that: Springs (21) are provided around the screen (23), and one end of the spring (21) is connected to the connecting frame (2).

4. A feeding device for an injection molding machine according to claim 1, characterized in that: A second motor (6) is provided at one end of the conveying cylinder (14), and the output end of the second motor (6) is connected to a third rotating shaft (19). The surface of the third rotating shaft (19) is provided with a spiral blade (20).

5. A feeding device for an injection molding machine according to claim 1, characterized in that: The other end of the conveying cylinder (14) is threadedly connected to a connecting ring (11), and one end of the connecting ring (11) is movably connected to a connecting cylinder (12).

6. A feeding device for an injection molding machine according to claim 1, characterized in that: A first motor (3) is provided at one end of the support plate (8), and the output end of the first motor (3) is connected to a first rotating shaft (4). Connecting columns (10) are provided on both sides of the hopper (5), and one end of the first rotating shaft (4) is fixedly connected to the connecting column (10). One end of the connecting column (10) is movably connected to a connecting shaft (9), and one end of the connecting shaft (9) is connected to the support plate (8).

7. A feeding device for an injection molding machine according to claim 1, characterized in that: The bottom of the support plate (8) is provided with a connecting plate (7), and the two ends of the connecting plate (7) are respectively provided with connecting holes (13).

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