A feeding device of an EVA sheet extruder

Abstract

The utility model discloses a kind of EVA sheet material extruder's feeding device, belong to conveying material field, including support platform, the upper surface of support platform is equipped with two support frames, two The side of the support frame mutually close is jointly installed with storage box, the upper surface of the storage box is equipped with weighing box, the inside of the weighing box is equipped with weighing plate, the inside of the weighing plate is equipped with gyration shaft and pressure sensor, the outer surface of the weighing box is equipped with first motor, the surface of the first motor is connected with gyration shaft, there is weighing plate in the weighing box above storage box, gyration shaft and pressure sensor in weighing plate cooperate, pressure sensor can accurately weigh EVA raw material weight, cooperate first motor drive gyration shaft can control the accurate control of feeding amount, avoid because raw material too much or too little influence extruder production stability and EVA sheet material forming quality, save the manual once one weighing, save work time for worker and save physical strength.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, specifically a feeding device for an EVA sheet extruder. Background Technology

[0002] In the production process of EVA sheets, multiple components need to be mixed in a certain proportion in the internal mixer of the extruder. Currently, most of them are fed manually. This method is not only labor-intensive, but also makes it difficult to accurately control the amount of each component. Inaccurate feeding will lead to unstable quality of the produced EVA sheets, affecting the performance and use of the product.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN207630466U) discloses a feeding device for an EVA sheet extruder, comprising a support and a hopper mounted on the extruder. The support is equipped with a guide rail and a material box mounted on the guide rail. The material box slides on the guide rail via a chain drive mechanism mounted on the frame. The guide rail includes an upward inclined section, an arc-shaped section, and a downward inclined section. The hopper is positioned below the downward inclined section. The top of the hopper is equipped with a fixed plate and a cover plate hinged to the fixed plate. A base is mounted on the cover plate, and an upper pulley is mounted on the fixed plate. The side of the hopper is equipped with a side pulley and a lower pulley located below the side pulley. The distance between the lower pulley and the hopper is less than the distance between the side pulley and the hopper. Pull ropes are mounted on the base, upper pulley, side pulley, and lower pulley, with one end of the pull rope fixed to the base.

[0004] Although the aforementioned patent saves workers' physical strength and time by setting up a material conveyor box, this structure requires manual weighing before adding materials during the material preparation process. Weighing is time-consuming and laborious, and workers are prone to memory confusion due to prolonged weighing, which can affect the product.

[0005] Therefore, this utility model provides a feeding device for an EVA sheet extruder to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides a feeding device for an EVA sheet extruder, 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 EVA sheet extruder, comprising a support platform, two support frames mounted on the upper surface of the support platform, a storage box mounted on the side of the two support frames that are close to each other, a weighing box mounted on the upper surface of the storage box, a weighing plate mounted inside the weighing box, a rotary shaft and a pressure sensor mounted inside the weighing plate, a first motor mounted on the outer surface of the weighing box, the output end of the first motor connected to the rotary shaft, a crushing box mounted on the bottom surface of the storage box, two rotating shafts mounted inside the crushing box, multiple crushing blades mounted on the surface of each rotating shaft, and two second motors mounted on the outer surface of the crushing box, the output end of each second motor connected to the rotating shaft.

[0010] As a preferred technical solution of this application, an installation block is installed on the outer surface of the crushing box, and the surface of the installation block passes through one of the support frames.

[0011] As a preferred technical solution of this application, the mounting block has a mounting groove inside, an electric push rod is installed inside the mounting groove, and a baffle plate is installed at the output end of the electric push rod.

[0012] As a preferred technical solution of this application, the surface of the crushing box is provided with a discharge port, the surface of the discharge port is equipped with a discharge pipe, and an electric control valve is installed on the discharge pipe.

[0013] As a preferred technical solution of this application, a material box is installed on the upper surface of the support platform, and two mounting brackets are connected to the surface of the material box.

[0014] As a preferred technical solution of this application, two rotating rods are rotatably connected to the mounting frame, and a conveyor belt is mounted on both rotating rods. A third motor is mounted on the mounting frame, and the output end of the third motor is fixedly connected to one end of one of the rotating rods.

[0015] As a preferred technical solution of this application, the lower part of the support platform is equipped with four support legs, the surface of the support platform is equipped with a controller, and the inside of the storage box is equipped with a sliding plate.

[0016] (III) Beneficial Effects

[0017] The weighing box above the storage tank contains a weighing plate. The rotary shaft and pressure sensor inside the weighing plate work together to accurately weigh the EVA raw material. Combined with the first motor driving the rotary shaft, it can precisely control the feeding amount, avoiding the impact of too much or too little raw material on the extruder's production stability and the quality of EVA sheet forming. The two rotating shafts and multiple crushing blades in the crushing box below the storage tank rotate at high speed under the drive of the second motor. This can fully crush large pieces of raw material, making them into granules that are easier to melt and plasticize, reducing defects in subsequent extrusion processes. At the same time, it can prevent large pieces of raw material from clogging the channel, ensuring smooth feeding and improving overall production efficiency. Attached Figure Description

[0018] Figure 1 This is a front view schematic diagram of the feeding device of an EVA sheet extruder;

[0019] Figure 2 This is a schematic diagram of the left-hand structure of the feeding device of an EVA sheet extruder;

[0020] Figure 3 This is a frontal cross-sectional schematic diagram of the feeding device of an EVA sheet extruder;

[0021] Figure 4 This is an enlarged schematic diagram of the rotating shaft of the feeding device in an EVA sheet extruder.

[0022] Figure 5 This is an enlarged schematic diagram of the electrically controlled valve of the feeding device of an EVA sheet extruder.

[0023] In the picture:

[0024] 1. Support platform; 2. Support leg; 3. Controller; 4. Loading box; 5. Support frame; 6. Mounting frame; 7. Conveyor belt; 8. Baffle; 9. Third motor; 10. Rotating rod; 11. Weighing box; 12. Weighing plate; 13. First motor; 14. Storage box; 15. Slide plate; 16. Crushing box; 17. Mounting block; 18. Mounting slot; 19. Electric push rod; 20. Baffle plate; 21. Rotating shaft; 22. Crushing blade; 23. Second motor; 24. Electric control valve; 25. Discharge pipe. Detailed Implementation

[0025] 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.

[0026] This utility model provides a feeding device for an EVA sheet extruder, such as... Figure 1 - Figure 5 As shown, the system includes a support platform 1, with two support frames 5 mounted on the upper surface of the support platform 1. A storage box 14 is mounted on the side of the two support frames 5 that are close to each other. A weighing box 11 is mounted on the upper surface of the storage box 14. A weighing plate 12 is installed inside the weighing box 11. A rotary shaft and a pressure sensor are installed inside the weighing plate 12. A first motor 13 is mounted on the outer surface of the weighing box 11. The output end of the first motor 13 is connected to the rotary shaft. A crushing box 16 is mounted on the bottom surface of the storage box 14. Two rotating shafts 21 are installed inside the crushing box 16. Multiple crushing blades 22 are mounted on the surface of each rotating shaft 21. Two second motors 23 are mounted on the outer surface of the crushing box 16. The output end of each second motor 23 is connected to the rotating shaft 21.

[0027] The weighing plate 12 inside the weighing box 11 is equipped with a rotating shaft and a pressure sensor. The pressure sensor can accurately sense the weight of the raw material. In conjunction with the rotating shaft driven by the first motor 13, it can accurately control the quantitative entry of the raw material into the storage box 14, and achieve precise control of the feeding amount. The two support frames 5 on the support platform 1 provide stable support for the storage box 14. Inside the crushing box 16 below the storage box 14, the two rotating shafts 21 and the crushing blades 22 on the surface can fully crush the raw material under the drive of the second motor 23, avoiding large pieces of raw material from blocking the channel, improving the smoothness of feeding, and the crushed raw material is more suitable for the extruder, improving the extrusion efficiency.

[0028] An installation block 17 is mounted on the outer surface of the crushing box 16. The surface of the installation block 17 passes through one of the support frames 5. The interior of the installation block 17 has an installation groove 18, and an electric push rod 19 is installed inside the installation groove 18. A baffle plate 20 is installed at the output end of the electric push rod 19. The installation block 17 on the outer surface of the crushing box 16 passes through the support frame 5 and can play an auxiliary role in fixing the crushing box 16, enhancing its stability during operation, preventing the device from loosening due to vibration caused by the high-speed operation of the crushing blade 22, and extending the service life of the equipment. At the same time, the electric push rod 19 in the installation groove 18 inside the installation block 17 can drive the baffle plate 20 to move. By controlling the position of the baffle plate 20, the speed and amount of raw material conveyed from the storage box 14 to the crushing box 16 can be flexibly adjusted to avoid excessive accumulation of raw material in the crushing box 16, which would affect the crushing effect.

[0029] In this embodiment, the surface of the crushing box 16 is provided with a discharge port, and a discharge pipe 25 is installed on the surface of the discharge port. An electric control valve 24 is installed on the discharge pipe 25. The electric control valve 24 of the discharge port on the surface of the crushing box 16 can accurately control the opening and closing to control the discharge speed. In conjunction with the discharge pipe 25, the crushed raw materials can be stably transported to the next process, avoiding raw material leakage, reducing manual operation, and improving production continuity.

[0030] In this embodiment, a material loading box 4 is installed on the upper surface of the support platform 1. Two mounting brackets 6 are connected to the surface of the material loading box 4. Two rotating rods 10 are rotatably connected to the mounting brackets 6. A conveyor belt 7 is installed on both rotating rods 10. A third motor 9 is installed on the mounting brackets 6. The output end of the third motor 9 is fixedly connected to one end of one of the rotating rods 10. The material loading box 4 on the upper surface of the support platform 1 can temporarily store EVA raw materials, providing a stable supply of raw materials for the feeding process. The two mounting brackets 6 connected to the surface of the material loading box 4 provide solid support for the rotating rods 10 and the conveyor belt 7. The third motor 9 drives one of the rotating rods 10 to rotate, driving the conveyor belt 7 to operate, realizing automated material transportation and reducing the labor intensity of manual material loading.

[0031] In this embodiment, four support legs 2 are installed on the lower part of the support platform 1, and a controller 3 is installed on the surface of the support platform 1. A sliding plate 15 is installed inside the storage box 14. The four support legs 2 at the lower part of the support platform 1 provide stable support for the entire device, ensuring that the device is placed stably. The controller 3 on the surface of the support platform 1 can centrally control the operation of various components such as motors, electric push rods 19, and electric control valves 24, realize the automated control of the feeding process, and improve the ease of operation. The sliding plate 15 inside the storage box 14 can guide the raw material to slide smoothly into the crushing box 16, avoid raw material residue, and reduce raw material waste.

[0032] The working principle of this utility model is as follows: The material box 4 on the upper surface of the support platform 1 can be used to put raw materials. The third motor 9 drives the rotating rod 10 to make the conveyor belt 7 run. The baffle 8 can prevent the raw materials from slipping and transport the raw materials from the material box 4 to the weighing box 11. The raw materials are on the weighing plate 12 in the weighing box 11. After the pressure sensor detects that the weight reaches the standard, the first motor 13 drives the rotary shaft to rotate, so that the raw materials fall into the storage box 14 and slide to the crushing box 16 via the sliding plate 15. The electric push rod 19 drives the baffle plate 20 to control the amount of raw materials entering the crushing box 16. The second motor 23 drives the rotating shaft 21 to make the crushing blade 22 crush the raw materials. After crushing, the raw materials are sent to the extruder through the discharge port by the electric control valve 24 through the discharge pipe 25.

[0033] 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. A feeding device for an EVA sheet extruder, comprising a support platform (1), characterized in that: Two support frames (5) are installed on the upper surface of the support platform (1). A storage box (14) is installed on the side of the two support frames (5) that are close to each other. A weighing box (11) is installed on the upper surface of the storage box (14). A weighing plate (12) is installed inside the weighing box (11). A rotary shaft and a pressure sensor are installed inside the weighing plate (12). A first motor (13) is installed on the outer surface of the weighing box (11). The output end of the first motor (13) is connected to the rotary shaft. A crushing box (16) is installed on the bottom surface of the storage box (14). Two rotating shafts (21) are installed inside the crushing box (16). Multiple crushing blades (22) are installed on the surface of each rotating shaft (21). Two second motors (23) are installed on the outer surface of the crushing box (16). The output end of each second motor (23) is connected to the rotating shaft (21).

2. The feeding device for an EVA sheet extruder according to claim 1, characterized in that: The outer surface of the crushing box (16) is fitted with a mounting block (17), the surface of which passes through one of the support frames (5).

3. The feeding device for an EVA sheet extruder according to claim 2, characterized in that: The mounting block (17) has an internal mounting groove (18), and an electric push rod (19) is installed inside the mounting groove (18). A baffle plate (20) is installed at the output end of the electric push rod (19).

4. The feeding device for an EVA sheet extruder according to claim 1, characterized in that: The surface of the crushing box (16) is provided with a discharge port, and a discharge pipe (25) is installed on the surface of the discharge port. An electric control valve (24) is installed on the discharge pipe (25).

5. The feeding device for an EVA sheet extruder according to claim 1, characterized in that: The upper surface of the support platform (1) is equipped with a loading box (4), and the surface of the loading box (4) is connected to a mounting bracket (6).

6. The feeding device for an EVA sheet extruder according to claim 5, characterized in that: Two rotating rods (10) are rotatably connected to the mounting frame (6). A conveyor belt (7) is mounted on both rotating rods (10). A third motor (9) is mounted on the mounting frame (6). The output end of the third motor (9) is fixedly connected to one end of one of the rotating rods (10).

7. The feeding device for an EVA sheet extruder according to claim 1, characterized in that: The lower part of the support platform (1) is equipped with four support legs (2), the surface of the support platform (1) is equipped with a controller (3), and the inside of the storage box (14) is equipped with a sliding plate (15).

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