Master batch screening device

Abstract

The utility model relates to the technical field of screening equipment, in particular to a master batch screening device which comprises two supporting cylinders rotationally connected with a machine frame, the axes of the two supporting cylinders are horizontally arranged in parallel, one of the supporting cylinders is in transmission connection with a forward and reverse rotation movement mechanism, each supporting cylinder is provided with a belt, and the belt is connected with the machine frame. The portion, located above the supporting cylinders, of the belt is defined as an upper belt portion, the portion, located below the supporting cylinders, of the belt is defined as a lower belt portion, a first screen is installed between the upper belt portions of the belts on the two supporting cylinders, and a second screen is installed between the lower belt portions of the belts on the two supporting cylinders. The hole diameter of the first screen mesh is larger than that of the second screen mesh. When the device works, the first screen mesh and the second screen mesh do reciprocating reverse motion to achieve the purpose of screening master batches, and due to the fact that the first screen mesh and the second screen mesh do reverse staggered motion all the time, separation of the master batches is promoted.

Description

Technical Field

[0001] The utility model relates to the technical field of screening equipment, in particular to a masterbatch screening device. Background Art

[0002] Plastic masterbatch is a concentrate of plastic additives, usually containing pigments, dyes, antioxidants, UV absorbers, etc., used to improve the performance and appearance of plastic products. They are mixed with base resins in a certain proportion during plastic processing to achieve specific color effects or enhance material properties. Plastic masterbatch can improve production efficiency and ensure uniform distribution of colors and additives.

[0003] Screening after masterbatch pelletizing is to ensure the uniformity and quality of the pellets. Screening can remove powder and debris generated during the cutting process, as well as irregularly shaped particles, thereby ensuring consistent particle size, facilitating subsequent plastic processing and uniformity of finished products. In addition, screening can also help remove impurities that may affect the performance of the plastic, ensuring the quality of the final product.

[0004] When the multi-layer screens of the existing screening device are working, the vibration motor generally drives the multi-layer screens distributed up and down to vibrate at the same frequency and in the same direction. Vibration in the same direction is not conducive to the separation of the masterbatch. Utility Model Content

[0005] The utility model aims to provide a novel screening device with reverse motion, and proposes a mother particle screening device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A masterbatch screening device comprises two supporting cylinders rotatably connected to a frame, wherein the axes of the two supporting cylinders are arranged horizontally and in parallel, wherein one of the supporting cylinders is transmission-connected with a forward and reverse motion mechanism, and each supporting cylinder is provided with a belt, wherein the belt located above the supporting cylinder is defined as an upper belt portion, and the belt located below the supporting cylinder is defined as a lower belt portion, a first screen is installed between the upper belt portions of the belts on the two supporting cylinders, and a second screen is installed between the lower belt portions of the belts on the two supporting cylinders, and the aperture diameter of the first screen is greater than the aperture diameter of the second screen.

[0008] A first ear portion is provided on the first screen near the upper belt portion. The first ear portion is detachably fixed to the first screen via a screw, and the first ear portion is fixed to the upper belt portion via a plurality of rivets.

[0009] The second screen is provided with a second ear portion near the lower belt portion. The second ear portion is detachably fixed to the second screen via screws, and the second ear portion is fixed to the lower belt portion via a plurality of rivets.

[0010] The first sieve includes a left side plate, a mesh plate, and a right side plate. The mesh plate is inclined along the width direction of the upper belt portion. The left side plate and the right side plate are respectively fixedly connected above both sides of the mesh plate. The left side plate is fixed to the upper belt portion of one belt, and the right side plate is fixed to the upper belt portion of another belt.

[0011] The inclination direction of the first sieve is the same as that of the second sieve;

[0012] Or the inclination direction of the first sieve is opposite to that of the second sieve.

[0013] The belt is a toothed belt, and the outer circumference of the support cylinder has a toothed surface that mates with the toothed belt.

[0014] The forward and reverse motion mechanism includes a rotary motor fixed to the frame. An eccentric disk is fixed on the power output shaft of the rotary motor. A connecting rod is eccentrically rotatably connected to the eccentric disk. One end of the connecting rod away from the eccentric disk is rotatably connected to a support rod, and one end of the support rod away from the connecting rod is fixed to the support cylinder.

[0015] For the masterbatch screening device proposed by the present utility model, the beneficial effects are as follows: When the device works, the support cylinder is driven by the reverse motion mechanism to reciprocate forward and reverse, thereby driving the belt to reciprocate. When the belt reciprocates around the support cylinder, the upper belt portion and the lower belt portion reciprocate in opposite directions. Thus, the first sieve and the second sieve reciprocate in opposite directions, achieving the purpose of screening the masterbatch. Since the first sieve and the second sieve always move in opposite and staggered motions, the separation of the masterbatch is promoted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is a front view structural schematic diagram of the present utility model.

[0018] In the figure: the first sieve 1, the first ear portion 2, the upper belt portion 3, the support cylinder 4, the lower belt portion 5, the second ear portion 6, the second sieve 7, the support rod 8, the connecting rod 9, the eccentric disk 10, the rotary motor 11, the belt 12, the left side plate 101, the mesh plate 102, the right side plate 103. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0020] Refer to Figure 1-2, A masterbatch screening device, comprising two support cylinders 4 rotatably connected to a frame. The axes of the two support cylinders 4 are horizontally parallel. One of the support cylinders 4 is drivingly connected to a forward and reverse motion mechanism. A belt 12 is provided on each support cylinder 4. The part of the belt 12 above the support cylinder 4 is defined as the upper belt part 3, and the part below the support cylinder 4 is defined as the lower belt part 5. A first screen 1 is installed between the upper belt parts 3 of the belts 12 on the two support cylinders 4, and a second screen 7 is installed between the lower belt parts 5 of the belts 12 on the two support cylinders 4. The aperture of the sieve holes of the first screen 1 is larger than that of the second screen 7.

[0021] When the device is working, the support cylinder 4 is driven by the reverse motion mechanism to reciprocate forward and reverse, thereby driving the belt 12 to reciprocate. When the belt 12 reciprocates around the support cylinder 4, the upper belt part 3 and the lower belt part 5 reciprocate in opposite directions. Thus, the first screen 1 and the second screen 7 reciprocate in opposite directions, achieving the purpose of screening the masterbatch. Since the first screen 1 and the second screen 7 always move in opposite and staggered motions, the separation of the masterbatch is promoted.

[0022] To facilitate the installation and replacement of the screen, a first ear part 2 is provided at a position of the first screen 1 close to the upper belt part 3. The first ear part 2 is detachably fixed to the first screen 1 by screws, and the first ear part 2 is fixed to the upper belt part 3 by a plurality of rivets;

[0023] And / or a second ear part 6 is provided at a position of the second screen 7 close to the lower belt part 5. The second ear part 6 is detachably fixed to the second screen 7 by screws, and the second ear part 6 is fixed to the lower belt part 5 by a plurality of rivets.

[0024] The first ear part 2 and the second ear part 6 are stably and firmly connected to the upper belt part 3 and the lower belt part 5 by rivets, and the first ear part 2 and the second ear part 6 are detachably assembled with the upper belt part 3 and the lower belt part 5 by screws, facilitating the replacement of the screen.

[0025] As an implementation manner of the screen, referring to Figure 1 , the first screen 1 includes a left side plate 101, a mesh plate 102, and a right side plate 103. The mesh plate 102 is inclined in the width direction of the upper belt part 3. The left side plate 101 and the right side plate 103 are respectively fixedly connected above both sides of the mesh plate 102. The left side plate 101 is fixed to the upper belt part 3 of one belt 12, and the right side plate 103 is fixed to the upper belt part 3 of the other belt 12. The inclined setting of the mesh plate 102 facilitates discharging.

[0026] Referring to Figure 1 , as a setting manner, the inclination direction of the first screen 1 is the same as that of the second screen 7;

[0027] Or as another setting manner, the inclination direction of the first screen 1 is opposite to that of the second screen 7.

[0028] As an implementation manner, the belt 12 is a toothed belt, and the outer circumference of the support cylinder 4 has a toothed surface that cooperates with the toothed belt. Through the cooperation of the toothed structure, a stable cooperation relationship between the belt 12 and the support cylinder 4 is achieved, avoiding belt slippage.

[0029] As a transmission method, referring to Figure 2 , the forward and reverse motion mechanism includes a rotary motor 11 fixed to the frame. An eccentric disk 10 is fixed on the power output shaft of the rotary motor 11. A connecting rod 9 is eccentrically rotatably connected to the eccentric disk 10. One end of the connecting rod 9 away from the eccentric disk 10 is rotatably connected to a support rod 8. One end of the support rod 8 away from the connecting rod 9 is fixed to the support cylinder 4. By continuously operating the rotary motor 11 in one direction, the support cylinder 4 is continuously rotated back and forth under the action of the connecting rod 9 and the support rod 8, and the transmission method is simple and convenient.

[0030] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes to obtain technical solutions, concepts, and designs, which should all be covered within the protection scope of the present invention.

Claims

1. A masterbatch screening device, characterized in that, It includes two support cylinders (4) rotatably connected to the frame. The axes of the two support cylinders (4) are horizontally parallel. One of the support cylinders (4) is drivingly connected to a forward and reverse movement mechanism. A belt (12) is provided on each support cylinder (4). The part of the belt (12) above the support cylinder (4) is defined as the upper belt part (3), and the part below the support cylinder (4) is defined as the lower belt part (5). A first screen (1) is installed between the upper belt parts (3) of the belts (12) on the two support cylinders (4), and a second screen (7) is installed between the lower belt parts (5) of the belts (12) on the two support cylinders (4). The aperture of the sieve holes of the first screen (1) is larger than that of the second screen (7).

2. The masterbatch screening device according to claim 1, wherein A first ear part (2) is provided at a position of the first screen (1) close to the upper belt part (3). The first ear part (2) is detachably fixed to the first screen (1) by screws, and the first ear part (2) is fixed to the upper belt part (3) by a plurality of rivets.

3. The masterbatch screening device according to claim 1, characterized in that, A second ear part (6) is provided at a position of the second screen (7) close to the lower belt part (5). The second ear part (6) is detachably fixed to the second screen (7) by screws, and the second ear part (6) is fixed to the lower belt part (5) by a plurality of rivets.

4. A masterbatch screening device according to claim 1 or 2 or 3, characterized in that, The first screen (1) includes a left side plate (101), a mesh plate (102), and a right side plate (103). The mesh plate (102) is inclined in the width direction of the upper belt part (3). The left side plate (101) and the right side plate (103) are respectively fixedly connected above both sides of the mesh plate (102). The left side plate (101) is fixed to the upper belt part (3) of one belt (12), and the right side plate (103) is fixed to the upper belt part (3) of the other belt (12).

5. The masterbatch screening device according to claim 4, wherein, The inclination direction of the first screen (1) is the same as that of the second screen (7); or the inclination direction of the first screen (1) is opposite to that of the second screen (7).

6. A masterbatch screening device according to any one of claims 1-3 and 5, characterized in that, The belt (12) is a toothed belt, and the outer circumference of the support cylinder (4) has a toothed surface that mates with the toothed belt.

7. A masterbatch screening device according to any one of claims 1-3 and 5, characterized in that, The forward and reverse movement mechanism includes a rotary motor (11) fixed to the frame. An eccentric disc (10) is fixed on the power output shaft of the rotary motor (11). A connecting rod (9) is eccentrically rotatably connected to the eccentric disc (10). One end of the connecting rod (9) away from the eccentric disc (10) is rotatably connected to a support rod (8), and one end of the support rod (8) away from the connecting rod (9) is fixed to the support cylinder (4).

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