Screening device for plastic particle production

Abstract

The utility model discloses a screening device for plastic particle production, and relates to the field of plastic particle production. The screening device comprises a screening box, the top of the screening box is provided with a feeding bin used for feeding, the feeding bin is communicated with the interior of the screening box, a screening frame is arranged in the screening box, the inner wall of the screening frame is sequentially provided with a first screening plate, a second screening plate and a bottom plate from high to low, and an air cylinder is installed on the lower portion in the screening box. The output end of the air cylinder is connected with the bottom face of the screening frame. According to the plastic particle screening device, the problem that an existing screening device is not high in screening precision is solved, the air cylinder drives the screening frame to shake up and down, plastic particles can be gradually leaked from the first screening plate and the second screening plate with the hole diameters from large to small, the effect of screening the plastic particles with the multi-stage particle sizes is achieved, and the screening efficiency is improved. The rotating shaft is controlled by the motor to drive the material guide plate to rotate, so that the plastic particles uniformly fall into the screening box, and the collecting box is mounted on the screening box through the inserting rod, so that workers can conveniently replace the collecting box.

Description

Technical Field

[0001] The utility model relates to the field of plastic particle production, in particular to a screening device for plastic particle production. Background Art

[0002] Plastic granules are a kind of raw material widely used in the production of plastic products. The production process usually includes the recycling, crushing, cleaning, drying and processing of plastic waste. Plastic granules are the main raw materials for manufacturing various plastic products. They are widely used in the production of plastic products in various fields. They play an important role in the development of modern industry and the convenience of life.

[0003] The existing plastic particle screening device has low screening accuracy and is difficult to screen plastic particles into multiple particle sizes, resulting in low screening efficiency and inconvenience for subsequent processing steps. Therefore, it does not meet existing needs. We propose a screening device for plastic particle production. Utility Model Content

[0004] The utility model aims to provide a screening device for plastic particle production, which has the characteristics of improving screening accuracy and solves the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screening device for producing plastic particles, comprising a screening box, a feeding bin for feeding is arranged on the top of the screening box, the feeding bin is communicated with the interior of the screening box, a screening frame is arranged inside the screening box, a first screen plate, a second screen plate and a bottom plate are arranged on the inner wall of the screening frame in sequence from high to low, a cylinder is installed at the bottom of the screening box, and the output end of the cylinder is connected to the bottom surface of the screening frame.

[0006] Preferably, a discharge port is provided on one side of the screening box and the screening frame, the first screen plate, the second screen plate and the bottom plate are all inclined, and the discharge port is opened at a lower position of the first screen plate, the second screen plate and the bottom plate.

[0007] Preferably, a baffle is installed on the outer side of the discharge port, a collecting box is arranged directly below the discharge port, a fixing component is arranged on the collecting box, and the collecting box is installed on the outer wall of the screening box through the fixing component.

[0008] Preferably, the fixing assembly includes a plug plate, a plug rod and a fixing groove. The plug plate is arranged on the outer wall of the screening box. The upper surface of the collecting box is provided with a fixing groove. The plug rod passes through the fixing groove and is inserted into the plug plate. The collecting box is connected to the screening box by inserting the plug rod into the plug plate.

[0009] Preferably, feet are provided at the four corners of the bottom of the screening box, and the bottom surfaces of the feet are provided with anti-slip pads, and a box door is provided below one side of the screening box, and the box door is directly opposite to the installation position of the cylinder.

[0010] Preferably, a material guiding mechanism is arranged below the interior of the feed bin, and the material guiding mechanism includes a motor, a rotating shaft and a material guiding plate. A motor is arranged on the outer wall below the feed bin, and a rotating shaft is arranged on the inner wall of the feed bin. The output end of the motor is connected to the rotating shaft, and material guiding plates are evenly distributed on the outer peripheral surface of the rotating shaft.

[0011] Preferably, sliding blocks are symmetrically arranged on the outer wall of the screening frame, and sliding grooves matched with the sliding blocks are arranged on the inner wall of the screening box, and the screening frame is movably connected with the screening box by embedding the sliding blocks in the sliding grooves.

[0012] Preferably, the first sieve plate and the second sieve plate are provided with sieve holes, and the sieve holes of the first sieve plate have a larger aperture than the sieve holes of the second sieve plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The screening device for plastic granule production of the utility model drives the screening frame to swing up and down by the cylinder, so that the plastic granules can be leaked successively from the first sieve plate and the second sieve plate with apertures from large to small, and since the bottom plate is not provided with sieve holes, the plastic particles screened finally fall to the surface of the bottom plate. Due to the inclined arrangement of the first sieve plate, the second sieve plate and the bottom plate, the plastic particles screened on the surfaces of the first sieve plate and the second sieve plate and the plastic particles on the bottom plate will slide to the discharge port and fall into the corresponding collection box for collection. Through the above process, the effect of screening plastic particles of multiple particle sizes is achieved, thereby effectively improving the screening efficiency and facilitating subsequent processing procedures.

[0015] 2. In the screening device for plastic granule production of the utility model, plastic granules are put into the screening box from the feed bin for screening. The motor controls the rotation of the rotating shaft, which drives the guide plate to rotate. The guide plate allows the plastic granules to fall into the screening box more evenly, avoiding blockage during material discharge. The collection box for collecting the screened plastic granules is installed on the screening box through an insertion rod. The setting of the insertion rod makes it easy for the staff to replace the collection box after it is full. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the external structure of the screening box of the utility model;

[0018] Figure 3 This is a schematic diagram of the material guiding mechanism structure of the utility model;

[0019] Figure 4 It is an enlarged schematic diagram of point A of the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the fixing component of the utility model.

[0021] In the figure: 1. screening box; 11. discharge port; 111. baffle; 12. collecting box; 121. fixing assembly; 1211. plug plate; 1212. plug rod; 1213. fixing slot; 13. support foot; 14. box door; 15. slide; 2. feed bin; 21. material guide mechanism; 211. motor; 212. rotating shaft; 213. material guide plate; 3. screening frame; 31. slider; 4. first screen plate; 5. second screen plate; 6. bottom plate; 7. cylinder. DETAILED DESCRIPTION

[0022] 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.

[0023] In order to solve the technical problems that the existing plastic particle screening device has low screening accuracy, is difficult to screen plastic particles into multiple particle sizes, makes the screening efficiency low, and is not convenient for subsequent processing procedures, please refer to Figure 1-Figure 5 , this embodiment provides the following technical solutions:

[0024] A screening device for plastic granule production includes a screening box 1, wherein four corners of the bottom of the screening box 1 are provided with supporting feet 13, and the bottom surfaces of the supporting feet 13 are provided with anti-skid pads, the supporting feet 13 are used to support the screening box 1, and the anti-skid pads provided on the bottom surfaces of the supporting feet 13 are made of rubber material, and the anti-skid pads are in contact with the ground, and the supporting feet 13 increase the friction with the ground through the anti-skid pads. At this time, the anti-skid pads contact the ground, increasing the friction between the device and the ground, thereby achieving the effect of preventing the screening device from sliding during use. The top of the screening box 1 is provided with a useful A feed bin 2 for feeding materials is provided, and the feed bin 2 is connected with the interior of a screening box 1. A screening frame 3 is arranged inside the screening box 1, and a first screen plate 4, a second screen plate 5 and a bottom plate 6 are arranged on the inner wall of the screening frame 3 in sequence from high to low. A cylinder 7 is installed at the lower part of the screening box 1, and an output end of the cylinder 7 is connected to the bottom surface of the screening frame 3, and the screening frame 3 can be driven to swing up and down through the output end of the cylinder 7. A box door 14 is provided at the lower part of one side of the screening box 1, and the box door 14 is opposite to the installation position of the cylinder 7, and the cylinder 7 can be inspected and maintained at any time through the box door 14.

[0025] Slide blocks 31 are symmetrically arranged on the outer wall of the screening frame 3, and a chute 15 adapted to the slide block 31 is arranged on the inner wall of the screening box 1. The screening frame 3 is movably connected with the screening box 1 by embedding the slide block 31 into the chute 15. The setting of the slide block 31 and the chute 15 facilitates the cylinder 7 to push the screening frame 3 up and down. A discharge port 11 is arranged on one side of the screening box 1 and the screening frame 3. The first screen plate 4, the second screen plate 5 and the bottom plate 6 are all inclined. The discharge port 11 is opened on the first screen plate 4, the second screen plate 5 and the bottom plate 6 At a lower position, sieve holes are provided on the first sieve plate 4 and the second sieve plate 5, and the sieve hole diameter of the first sieve plate 4 is larger than the sieve hole diameter of the second sieve plate 5. It should be noted that the first sieve plate 4 and the second sieve plate 5 can be set in corresponding numbers according to the actual screening accuracy, but it is necessary to ensure that the bottom plate 6 is located at the bottom, and no sieve holes are provided on the bottom plate 6. After layers of screening, the plastic particles finally fall on the surface of the bottom plate 6. The bottom plate 6 has no sieve holes to prevent the finally screened plastic from falling into the bottom of the screening box 1 and being unable to be taken out for collection.

[0026] Specifically, when in use, the plastic particles to be screened are put into the feed bin 2, and the plastic particles fall into the screening frame 3 inside the screening box 1 through the feed bin 2, and the cylinder 7 is started. The screening frame 3 can be driven by the cylinder 7 to shake up and down. Through the up and down shaking of the screening frame 3, the plastic particles can be successively leaked from the first screen plate 4 and the second screen plate 5 with apertures from large to small, respectively. The large plastic particles will remain on the first screen plate 4, and the small plastic particles will pass through the first screen plate 4 to enter the second screen plate 5, and the smaller plastic particles will pass through the second screen plate 5 and fall on the surface of the bottom plate 6, and the plastic particles remaining on the first screen plate 4, the second screen plate 5 and the bottom plate 6 will automatically slide to the discharge port 11 due to the inclined setting, and fall into the corresponding collection box 12 from the discharge port 11 for collection. Through the above process, the effect of screening plastic particles of multi-level particle sizes is achieved, thereby effectively improving the screening efficiency and facilitating subsequent processing procedures.

[0027] A material guiding mechanism 21 is arranged at the lower part of the feed bin 2, and the material guiding mechanism 21 includes a motor 211, a rotating shaft 212 and a material guiding plate 213. The motor 211 is arranged on the outer wall below the feed bin 2, and the rotating shaft 212 is arranged on the inner wall of the feed bin 2. The output end of the motor 211 is connected to the rotating shaft 212, and the material guiding plates 213 are evenly distributed on the outer peripheral surface of the rotating shaft 212.

[0028] Specifically, after the plastic particles are put into the feed bin 2, the motor 211 is started, and the motor 211 controls the rotation of the rotating shaft 212. The rotation of the rotating shaft 212 can drive the guide plate 213 to rotate. The rotating guide plate 213 can control the unloading speed of the feed bin 2, so that the plastic particles in the feed bin 2 can fall into the interior of the screening box 1 more evenly, avoiding blockage during unloading, thereby improving the screening effect.

[0029] A baffle 111 is installed on the outer side of the discharge port 11, and the baffle 111 plays a shielding role. The baffle 111 can prevent the plastic particles coming out of the discharge port 11 from splashing everywhere. A collecting box 12 is arranged just below the discharge port 11, and a fixing component 121 is arranged on the collecting box 12. The collecting box 12 is installed on the outer wall of the screening box 1 through the fixing component 121.

[0030] The fixing assembly 121 includes an insert plate 1211, an insert rod 1212 and a fixing groove 1213. The insert plate 1211 is arranged on the outer wall of the screening box 1. The upper surface of the collecting box 12 is provided with a fixing groove 1213. The insert rod 1212 passes through the fixing groove 1213 and is inserted into the insert plate 1211. The collecting box 12 is connected to the screening box 1 by inserting the insert rod 1212 into the insert plate 1211.

[0031] Specifically, there is a collection box 12 corresponding to the bottom of each discharge port 11. When collecting, align the plug plate 1211 with the slot on the collection box 12 and insert it. Then, insert the plug rod 1212 from the fixed groove 1213, so that the plug rod 1212 is inserted into the plug plate 1211, so that the collection box 12 can be installed on the outer wall of the screening box 1. Through the cooperation between the plug plate 1211, the plug rod 1212 and the fixed groove 1213, when the collection box 12 is full, it can be quickly replaced with another empty collection box 12, thereby facilitating the replacement of the collection box 12. After the screening work is completed, the collection box 12 can be removed from the screening box 1 after the plug rod 1212 is removed, so that the collection box 12 will not affect the storage of the screening box 1.

[0032] Working principle: After the plastic particles are put into the feed bin 2, the motor 211 drives the rotating shaft 212 to drive the guide plate 213 to rotate. The guide plate 213 can control the feeding speed of the feed bin 2, so that the plastic particles can fall into the inside of the screening box 1 more evenly, avoiding blockage during feeding, thereby improving the screening effect. The plastic particles fall into the screening frame 3 inside the screening box 1 through the feed bin 2, and the screening frame 3 can be driven up and down by the cylinder 7, so that the first screen plate 4 and the second screen plate 5 screen the plastic particles in turn. The large plastic particles will remain on the first screen plate 4, and the small plastic particles will pass through the first screen plate 4 and enter the second screen plate 5. Second sieve plate 5, no matter how small the plastic particles are, they will pass through the second sieve plate 5 and fall on the surface of the bottom plate 6. Due to the inclined setting, the plastic particles remaining on the first sieve plate 4, the second sieve plate 5 and the bottom plate 6 will automatically slide to the discharge port 11, and fall into the corresponding collection box 12 from the discharge port 11 for collection. Through the above process, the effect of screening plastic particles of multiple particle sizes is achieved, thereby effectively improving the screening efficiency and facilitating subsequent processing procedures. The collection box 12 is installed on the screening box 1 by means of the insertion rod 1212. The setting of the insertion rod 1212 makes it convenient for the staff to replace it after the collection box 12 is full.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] 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 screening device for producing plastic particles, comprising a screening box (1), characterized in that: The top of the screening box (1) is provided with a feeding bin (2) for feeding materials, the feeding bin (2) is connected with the interior of the screening box (1), a screening frame (3) is provided inside the screening box (1), a first screening plate (4), a second screening plate (5) and a bottom plate (6) are arranged on the inner wall of the screening frame (3) in descending order, and a cylinder (7) is installed at the bottom of the screening box (1), and the output end of the cylinder (7) is connected to the bottom surface of the screening frame (3).

2. A screening device for plastic granule production according to claim 1, characterized in that: A discharge port (11) is provided on one side of the screening box (1) and the screening frame (3); the first screen plate (4), the second screen plate (5) and the bottom plate (6) are all arranged inclined; and the discharge port (11) is opened at a lower position of the first screen plate (4), the second screen plate (5) and the bottom plate (6).

3. A screening device for plastic granule production according to claim 2, characterized in that: A baffle (111) is installed on the outer side of the discharge port (11), a collection box (12) is arranged directly below the discharge port (11), a fixing component (121) is arranged on the collection box (12), and the collection box (12) is installed on the outer wall of the screening box (1) through the fixing component (121).

4. A screening device for plastic granule production according to claim 3, characterized in that: The fixing assembly (121) comprises an inserting plate (1211), an inserting rod (1212) and a fixing groove (1213); the inserting plate (1211) is arranged on the outer wall of the screening box (1); the fixing groove (1213) is arranged on the upper surface of the collecting box (12); the inserting rod (1212) passes through the fixing groove (1213) and is then inserted into the inserting plate (1211); the collecting box (12) is connected to the screening box (1) by inserting the inserting rod (1212) into the inserting plate (1211).

5. A screening device for plastic granule production according to claim 1, characterized in that: Support feet (13) are arranged at the four corners of the bottom of the screening box (1), and the bottom surfaces of the support feet (13) are provided with anti-slip pads. A box door (14) is arranged below one side of the screening box (1), and the box door (14) is directly opposite to the installation position of the cylinder (7).

6. A screening device for plastic granule production according to claim 1, characterized in that: A material guiding mechanism (21) is arranged below the inside of the feed bin (2), and the material guiding mechanism (21) comprises a motor (211), a rotating shaft (212) and a material guiding plate (213). The motor (211) is arranged on the outer wall below the feed bin (2), and the rotating shaft (212) is arranged on the inner wall of the feed bin (2). The output end of the motor (211) is connected to the rotating shaft (212), and the material guiding plates (213) are evenly distributed on the outer peripheral surface of the rotating shaft (212).

7. A screening device for plastic granule production according to claim 1, characterized in that: Slide blocks (31) are symmetrically arranged on the outer wall of the screening frame (3), and a slide groove (15) adapted to the slide block (31) is arranged on the inner wall of the screening box (1). The screening frame (3) is movably connected to the screening box (1) by embedding the slide block (31) into the slide groove (15).

8. A screening device for plastic granule production according to claim 1, characterized in that: The first sieve plate (4) and the second sieve plate (5) are provided with sieve holes, and the sieve hole diameter of the first sieve plate (4) is larger than the sieve hole diameter of the second sieve plate (5).

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