Particle size separation device for plastic particles

Abstract

The utility model relates to the technical field of particle size separation, and discloses a particle size separation device for plastic particles, which comprises a fixed shell, supporting legs are fixedly connected to the bottom of the fixed shell, a driving mechanism, an air screen mechanism and a mesh screen mechanism are sequentially arranged in the fixed shell, the driving mechanism comprises a support, and the support is provided with a plurality of air holes. The particle size separation device for the plastic particles has the advantages that the accumulated plastic particles are scattered so that the plastic particles can evenly pass through the position above the draught fan, the air screening efficiency is improved, the plastic particles are shielded through a baffle and an extension plate, and therefore the plastic particles can be separated from the draught fan. The conveying belt is used for being matched with the gravity to adjust the initial speed of the plastic particles, the plastic particles evenly pass through the position above the draught fan to be subjected to air screening, then under the action of the vibration motor, the screen is used for secondary screening, and the problem that the plastic particles are accumulated in the particle size separation process of the plastic particles at present is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of particle size separation, in particular to a particle size separation device for plastic particles. Background Art

[0002] With the progress of society and the continuous development of technology, plastic products have become an indispensable part of people's daily life, and plastic particles are the basic raw materials for the production of plastic products. They can be widely used in various fields to meet people's requirements for lightness, durability, and easy processing and assembly. In the production and processing of plastic particles, the size of the particle size has an important influence on the performance and quality of the product. In order to meet specific needs, it is necessary to separate the engineering plastic particles by particle size to obtain particles within a specific particle size range.

[0003] Chinese patent application number 202321168624.5 discloses a particle size separation device for engineering plastic particles, including a screening box, wherein a left cavity and a right cavity are respectively provided inside the screening box, a partition is installed between the left cavity and the right cavity, and the partition is bolted to the inner wall of the screening box, an air flow cylinder is installed on one side of the screening box, and sieve plates are installed inside the left cavity and the right cavity, and the air flow separation and sieve plate screening methods are combined, and the plastic particles are first separated by air flow, and the lighter plastic particles change their flight trajectory when falling. Finally, the two groups of particles after separation fall on the corresponding screening structure, and the particles are subjected to secondary particle size separation through the sieve plate on the screening structure.

[0004] The particles of the required particle size are screened by manual cooperation with machines. However, when the materials are piled up for air screening, the materials are squeezed against each other and the air screening efficiency is affected. The operation is more troublesome, and the efficiency and accuracy of particle size separation are relatively low. Therefore, we propose a particle size separation device for plastic particles. Utility Model Content

[0005] In view of the problem of plastic particle accumulation in the particle size separation process of plastic particles in the prior art, the utility model provides a particle size separation device for plastic particles, which has the advantage of breaking up the accumulated plastic particles so that the plastic particles pass evenly over the fan to increase the wind screening efficiency.

[0006] To achieve the above object, the utility model provides the following technical solution: a particle size separation device for plastic particles, comprising a fixed shell, the bottom of which is fixedly connected to a support foot, and the interior of the fixed shell is sequentially provided with a driving mechanism, an air screen mechanism and a mesh screen mechanism;

[0007] The driving mechanism comprises a bracket, the bracket is fixedly connected to the fixed shell, a conveyor belt is installed inside the bracket, and the conveyor belt is inclined relative to the fixed shell;

[0008] The wind screen mechanism comprises a support plate, the support plate is fixedly connected to the fixed housing, a fan is installed on the top of the support plate, and the fan is inclined relative to the fixed housing;

[0009] The mesh screen mechanism comprises an upper box body and a lower box body, and the lower box body and the upper box body are both fixedly connected to the fixed shell.

[0010] Preferably, a feed port is fixedly connected to the top of the fixed shell, a mesh screen outlet is provided at the front of the fixed shell, and a discharge port is provided at the bottom of the fixed shell.

[0011] Preferably, the driving mechanism also includes a baffle, which is fixedly connected to the bracket, and an extension plate is provided at the tail of the baffle, and the extension plate is configured to be an arc-shaped bending structure that fits the conveyor belt. A fixing rod is installed on the top of the bracket, and a rotating plate is fixedly connected to the outside of the fixing rod.

[0012] Preferably, the wind screening mechanism further comprises an air induction plate, the top of which is fixedly connected to a fixing plate, a through hole is provided inside the fixing plate, and an air outlet pipe is fixedly connected inside the hole.

[0013] Preferably, the mesh screen mechanism also includes a partition plate, which is arranged in an arc-shaped structure. Screens are installed inside the lower box and the upper box. A vibration motor is installed at the tail of the screen, which can drive the screen to vibrate. The screen is arranged at an angle, so the material can leave the screen from the tail of the screen.

[0014] Preferably, a driving motor is installed at the tail of the conveyor belt, and a plurality of evenly distributed fans are provided, and the fans can drive air flow.

[0015] Preferably, a through hole is opened inside the support plate, and a filter is installed at the bottom of the support plate, and the filter can filter the passing air.

[0016] Beneficial effects:

[0017] 1. The particle size separation device of the plastic particles shields the plastic particles through baffles, extension plates and rotating plates, uses a conveyor belt and gravity to give the plastic particles an initial velocity, so that the plastic particles pass evenly over the fan to complete the wind screening, and then under the action of the vibration motor, uses a screen to complete the secondary screening.

[0018] 2. The particle size separation device of the plastic particles divides the plastic particles into two parts by setting the lower box and the upper box in cooperation with the fan, and then continues to move inside the upper box and the lower box and falls above the screen. The length of the screen is greater than the length of the upper box and the lower box. The plastic particles can fall below the screen during the vibration process. At the same time, the filtered plastic particles gradually move to the tail of the screen and fall to the screen outlet for discharge. The particles in this area can be collected and put into the device for screening again. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the driving mechanism of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the wind screen mechanism of the utility model;

[0022] Figure 4 It is a schematic diagram of the structure of the mesh screen mechanism of the utility model.

[0023] In the figure: 1. fixed shell; 2. supporting feet; 3. driving mechanism; 4. wind screen mechanism; 5. mesh screen mechanism; 6. bracket; 7. conveyor belt; 8. baffle; 9. extension plate; 10. fixed rod; 11. rotating plate; 12. supporting plate; 13. fan; 14. air induced plate; 15. air outlet duct; 16. lower box body; 17. upper box body; 18. partition plate; 19. screen; 20. feed inlet; 21. mesh screen outlet; 22. discharge outlet. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] See also Figure 1-4A particle size separation device for plastic particles comprises a fixed shell 1, a support foot 2 is fixedly connected to the bottom of the fixed shell 1, a driving mechanism 3, a wind screen mechanism 4 and a mesh screen mechanism 5 are sequentially arranged inside the fixed shell 1, the driving mechanism 3 comprises a bracket 6, the bracket 6 is fixedly connected to the fixed shell 1, a conveyor belt 7 is installed inside the bracket 6, and the conveyor belt 7 is inclined relative to the fixed shell 1, the wind screen mechanism 4 comprises a support plate 12, the support plate 12 is fixedly connected to the fixed shell 1, a fan 13 is installed on the top of the support plate 12, and the fan 13 is inclined relative to the fixed shell 1.

[0027] Reference Figure 1-2 As shown, plastic particles are put into the fixed housing 1 and fall onto the conveyor belt 7, and the conveyor belt 7 drives the plastic particles to move;

[0028] A feed port 20 is fixedly connected to the top of the fixed shell 1 , a mesh screen outlet 21 is arranged at the front of the fixed shell 1 , and a discharge port 22 is arranged at the bottom of the fixed shell 1 .

[0029] Reference Figure 2 As shown, the plastic particles enter the device from the feed inlet 20, and the screened plastic particles are discharged from the screen outlet 21.

[0030] Among them, the driving mechanism 3 also includes a baffle 8, which is fixedly connected to the bracket 6. An extension plate 9 is arranged at the tail of the baffle 8, and the extension plate 9 is arranged to be an arc-shaped bending structure that fits the conveyor belt 7. A fixed rod 10 is installed on the top of the bracket 6, and a rotating plate 11 is fixedly connected to the outside of the fixed rod 10.

[0031] Reference Figure 1 As shown: under the action of the baffle plate 8, the extension plate 9 and the rotating plate 11, the accumulated plastic particles can be spread out.

[0032] The wind screening mechanism 4 further includes an air induction plate 14 , the top of which is fixedly connected to a fixing plate, a through hole is provided inside the fixing plate, and an air outlet pipe 15 is fixedly connected inside the hole.

[0033] Reference Figure 3 As shown: the fan 13 rotates to drive the air flow, and the flowing air from the air induction plate 14 area is affected by the thinning of the air outlet pipe 15, and the wind pressure increases, which can improve the wind screening effect;

[0034] Among them, a driving motor is installed at the tail of the conveyor belt 7, and a number of fans 13 are evenly distributed. The fans 13 can drive the air flow. A through hole is opened inside the support plate 12, and a filter is installed at the bottom of the support plate 12, which can filter the passing air.

[0035] Working principle: When the particle size separation device of plastic particles is in use, the plastic particles can be put into the fixed shell 1 through the feed port 20 and fall onto the conveyor belt 7. The conveyor belt 7 drives the plastic particles to move and, under the action of the baffle 8, the extension plate 9 and the rotating plate 11, the accumulated plastic particles are spread out so that the plastic particles can pass evenly over the wind screening mechanism 4. During this process, the conveyor belt 7 is tilted and the gravity can be used to give the plastic particles an initial velocity during the rotation of the conveyor belt 7. When the plastic particles pass through the wind screening mechanism 4, the fan 13 rotates to drive the air flow. The flowing air is affected by the thinning of the air outlet 15 in the area of ​​the air induced draft plate 14, and the wind pressure increases, which can improve the wind screening effect, so that the plastic particles move to the lower box 16 and the upper box 17, and then under the action of the vibration motor, the screen 19 is used to complete the secondary screening, thereby improving the separation effect.

[0036] Embodiment 2

[0037] Further on the basis of the first embodiment, the mesh screen mechanism 5 comprises an upper box body 17 and a lower box body 16, and the lower box body 16 and the upper box body 17 are both fixedly connected to the fixed housing 1;

[0038] Reference Figure 4 As shown: the lower box body 16 and the upper box body 17 cooperate with the fan 13 to divide the plastic particles into two parts with different particle sizes;

[0039] The mesh screen mechanism 5 further includes a partition plate 18, which is configured as an arc-shaped structure, and a screen 19 is installed inside the lower box 16 and the upper box 17;

[0040] Reference Figure 4 As shown: the partition plate 18 is arranged in an arc shape, so that the plastic particles can enter the lower box body 16 and the upper box body 17 respectively;

[0041] A vibration motor is installed at the tail of the screen 19, which can drive the screen 19 to vibrate. The screen 19 is tilted, so the material can be separated from the screen 19 from the tail of the screen 19;

[0042] Reference Figure 4 As shown, the length of the screen 19 is greater than the length of the upper box 17 and the lower box 16, so that the plastic particles can fall below the screen 19 during the vibration process, and the plastic particles that are not filtered out gradually move to the tail of the screen 19.

[0043] Working principle: When the particle size separation device for plastic particles is in use, the lower box 16 and the upper box 17 can be set to cooperate with the fan 13 to divide the plastic particles into two parts with different particle sizes, and then continue to move inside the upper box 17 and the lower box 16 to fall above the screen 19. The length of the screen 19 is greater than the length of the upper box 17 and the lower box 16. The plastic particles can fall below the screen 19 during the vibration process. At the same time, the plastic particles that are not filtered out gradually move to the tail of the screen 19 and fall to the screen outlet 21 for discharge. The particles in this area can be collected and put into the device for screening again.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic particle size separation device, comprising a fixed housing (1), characterized in that: The bottom of the fixed shell (1) is fixedly connected to a support foot (2), and the interior of the fixed shell (1) is provided with a driving mechanism (3), an air screen mechanism (4) and a mesh screen mechanism (5) in sequence; The driving mechanism (3) comprises a bracket (6), the bracket (6) being fixedly connected to the fixed housing (1), a conveyor belt (7) being installed inside the bracket (6), and the conveyor belt (7) being arranged obliquely with respect to the fixed housing (1); The wind screen mechanism (4) comprises a support plate (12), wherein the support plate (12) is fixedly connected to the fixed housing (1), a fan (13) is installed on the top of the support plate (12), and the fan (13) is arranged obliquely with respect to the fixed housing (1); The mesh screen mechanism (5) comprises an upper box body (17) and a lower box body (16), wherein the lower box body (16) and the upper box body (17) are both fixedly connected to the fixed outer shell (1).

2. A plastic particle size separation device according to claim 1, characterized in that: The top of the fixed shell (1) is fixedly connected with a feed port (20), the front of the fixed shell (1) is provided with a mesh screen outlet (21), and the bottom of the fixed shell (1) is provided with a discharge port (22).

3. The device for separating the particle size of plastic particles according to claim 1, characterized in that: The driving mechanism (3) further comprises a baffle (8), wherein the baffle (8) is fixedly connected to the bracket (6), an extension plate (9) is arranged at the tail of the baffle (8), and the extension plate (9) is arranged to be an arc-shaped bending structure that fits the conveyor belt (7), and a fixing rod (10) is installed at the top of the bracket (6), and a rotating plate (11) is fixedly connected to the outside of the fixing rod (10).

4. The device for separating the particle sizes of plastic particles according to claim 1, characterized in that: The wind screening mechanism (4) further comprises an air induction plate (14), the top of which is fixedly connected to a fixing plate, a through hole is provided inside the fixing plate, and an air outlet pipe (15) is fixedly connected inside the hole.

5. The device for separating plastic particles by particle size according to claim 1, characterized in that: The mesh screen mechanism (5) further comprises a partition plate (18) which is arranged in an arc-shaped structure. Screens (19) are installed inside the lower box (16) and the upper box (17), and a vibration motor is installed at the tail of the screen (19).

6. The device for separating the particle sizes of plastic particles according to claim 1, characterized in that: A driving motor is installed at the tail of the conveyor belt (7), and a plurality of fans (13) are evenly distributed.

7. The device for separating the particle sizes of plastic particles according to claim 1, characterized in that: A through hole is provided inside the support plate (12), and a filter screen is installed at the bottom of the support plate (12).

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