Plastic particle screening equipment

Abstract

The utility model discloses plastic particle screening equipment, which belongs to the technical field of plastic particle screening and comprises a box body, stand columns are fixedly mounted at four corners of the bottom end of the box body, inlets and outlets are formed in two sides of the box body, a feeding frame is fixedly mounted at the top end of the box body, and the bottom end of the feeding frame extends into the box body. A feeding frame is arranged in the box body, a material limiting assembly is arranged in the feeding frame, an installation frame is installed in the box body in a sliding mode, a first screening plate, a second screening plate, a third screening plate and a discharging plate are sequentially arranged in the installation frame from top to bottom, and the first screening plate, the second screening plate, the third screening plate and the discharging plate are located in the installation frame and are alternately and obliquely arranged. Through the arrangement of the first screening plate, the second screening plate and the third screening plate, and the mesh numbers of holes of the first screening plate, the second screening plate and the third screening plate are gradually increased in sequence, the multi-stage screening function of the equipment is facilitated, and the screening effect of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic particle screening, and more specifically to a plastic particle screening device. Background Art

[0002] Plastic particles refer to granular plastics. Common plastic particles include general-purpose plastics, engineering plastics, and specialty plastics. General-purpose plastics include polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyester, polyurethane, etc. After the plastic particles are processed, they need to be screened out through a screening device to obtain particles of different sizes for subsequent application and processing of different products.

[0003] Patent application number 202223509383.4 discloses a plastic particle screening device, comprising a drawer table, the top of which is fixedly connected to a group of symmetrically arranged U-shaped frames, the inner sides of which are respectively provided with guide blocks, one end of which is connected to a screening box, and two sides of which are respectively provided with slide grooves. The utility model drives the rotation of the rotating shaft and the elliptical turntable by a second motor, so that the guide blocks can drive the screening box to move up and down repeatedly, which is conducive to the screening box to produce up and down shaking and accelerate the screening speed of the screening box. The operation of the first motor can drive the screening box to move back and forth via the pull plate, which is conducive to the plastic particles following the forward and backward movement of the screening box. This ensures that the particles will push the large particles that stay at the screening port, which is conducive to the falling of small particles, reducing the time-consuming and labor-intensive problem of manual shifting. At the same time, the forward and backward shaking of the screening box can also achieve rapid screening and improve screening efficiency.

[0004] In response to the above-mentioned related technologies, the second motor drives the rotation of the rotating shaft and the elliptical turntable, so that the guide block can drive the screening box to move up and down repeatedly, which is beneficial for the screening box to shake up and down, and speed up the screening speed of the screening box. The first motor can drive the screening box to move back and forth through the pull plate, which is beneficial for the plastic particles to follow the movement of the screening box back and forth, ensuring that the particles will push the large particles staying at the screening port, which is beneficial for the falling of small particles and improving the screening efficiency of the equipment. However, the equipment only screens plastic particles through the screening box, can only screen fixed sizes, does not have the function of multi-stage screening, and reduces the scope of use of the equipment. Utility Model Content

[0005] In order to solve the above problems, the present invention provides a plastic particle screening device, which adopts the following technical solutions:

[0006] A plastic particle screening device comprises a box body, wherein four corners of the bottom end of the box body are fixedly installed with columns, inlets and outlets are opened on both sides of the box body, a feed frame is fixedly installed on the top of the box body, the bottom end of the feed frame extends into the box body, a material limiting assembly is provided in the feed frame, a mounting frame is slidably installed in the box body, a first screening plate, a second screening plate, a third screening plate and a discharge plate are provided in the mounting frame from top to bottom, the first screening plate, the second screening plate, the third screening plate and the discharge plate are arranged alternately and tilted in the mounting frame, two discharge frames are provided on both sides of the box body, the discharge frames are respectively located at the bottom of the inclined ends of the first screening plate, the second screening plate, the third screening plate and the discharge plate, a support assembly is provided between the bottom end of the mounting frame and the inner wall of the bottom end of the box body, and a vibration assembly is provided at the bottom end of the mounting frame.

[0007] By adopting the above technical solution, when the equipment is used, the staff puts the plastic particles into the feed frame, and the feed frame is provided with a material limiting component. Through the operation of the material limiting component, the plastic particles can enter the box in batches, which helps to avoid excessive one-time falling of materials and affecting the screening efficiency. Subsequently, the vibration component drives the mounting frame to slide up and down synchronously with the first screening plate, the second screening plate and the third screening plate, which can drive the first screening plate, the second screening plate and the third screening plate to vibrate, which is beneficial to increase the sliding speed of the plastic particles and thus help improve the screening efficiency of the equipment. A support component is provided between the mounting frame and the box, which can play a role in supporting and stabilizing the mounting frame, which is beneficial to maintaining the stability of the mounting frame sliding up and down. After entering the box, the plastic particles fall onto the first screening plate for screening. Plastic particles that are too small pass through the first screening plate and fall onto the second screening plate to achieve the effect of re-screening. Subsequently, they are screened again through the third screening plate. Through the cooperation of the first screening plate, the second screening plate and the third screening plate, the equipment has a multi-stage screening function, which is beneficial to improve the screening effect of the equipment.

[0008] Furthermore, the material limiting component includes a rotating rod rotatably installed in the feed frame, a plurality of material limiting plates distributed in a circular array are fixedly installed on the side wall of the rotating rod, a mounting box is fixedly installed on one side of the feed frame, a first reduction motor is fixedly installed in the mounting box, and one end of the rotating rod passes through the mounting box and is fixedly connected to the end of the output shaft of the first reduction motor.

[0009] By adopting the above technical solution, the staff puts the plastic particles into the feed frame, drives the rotating rod to rotate through the first reduction motor, and the rotating rod drives multiple limiting plates to rotate synchronously. Through the cooperation of multiple limiting plates, the plastic particles are easily fed into the box in batches, which helps to avoid excessive material falling at one time and affecting the screening efficiency.

[0010] Furthermore, the support assembly includes four pillars fixedly mounted on the inner wall of the bottom end of the box body, and the four pillars are symmetrically distributed on the inner wall of the bottom end of the box body. The top of the pillars are each provided with a movable groove, and a support rod is slidably installed in the movable groove. The bottom end of the support rod is fixedly connected to the inner wall of the bottom end of the movable groove on the same side with a spring, and the top end of the support rod is fixedly connected to the bottom end of the mounting frame.

[0011] By adopting the above technical solution, when the installation frame slides in the box body, the installation frame slides with the support rod in the movable groove on the same side, and the support rod pulls the springs of the same group to stretch. The springs can play the role of pulling the installation frame. Through the cooperation of the pillars, support rods and springs, the installation frame can be supported and stabilized, which is beneficial to maintaining the stability of the lifting and lowering vibration of the installation frame. The elastic force of the spring facilitates the continuous reciprocating motion of the installation frame, which is beneficial to improving the screening efficiency of the equipment.

[0012] Furthermore, two symmetrically distributed limiting blocks are fixedly mounted on the side walls of the bottom ends of the support rods, and the inner wall of the movable groove is provided with limiting grooves matching the limiting blocks on the same side.

[0013] By adopting the above technical solution, when the support rod slides in the movable groove on the same side, the support rod slides in the limit groove on the same side with the limit block. The cooperation between the limit block and the limit groove is conducive to maintaining the stability of the sliding of the support rod and helps to prevent the support rod from leaving the movable groove of the same group.

[0014] Furthermore, the vibration assembly includes a buffer block fixedly mounted on the bottom end of the mounting frame, a second reduction motor is fixedly mounted on the inner wall of the bottom end of the box body, and a cam is fixedly mounted on the side wall of the output shaft of the second reduction motor.

[0015] By adopting the above technical solution, the second reduction motor is used to drive the cam to rotate, and the cam rotates and contacts the buffer block installed at the bottom of the mounting frame. The cam pushes the buffer block to synchronously rise with the mounting frame, thereby driving the mounting frame to vibrate.

[0016] Furthermore, two symmetrically distributed sliding blocks are fixedly installed on both sides of the installation frame, and the inner wall of the box is provided with a sliding groove matching the sliding blocks on the same side.

[0017] By adopting the above technical solution, when the installation frame slides in the box, the installation frame slides with the slider in the same side slide groove. The cooperation between the slider and the slide groove is conducive to maintaining the stability of the vibration lifting of the installation frame.

[0018] Furthermore, two symmetrically distributed stabilizing blocks are fixedly installed on both sides of the box body, and support plates are fixedly installed on both sides of the feed frame. The cross-sections of the two support plates are inverted "L" shapes, and the bottom ends of the vertical sections of the two support plates are fixedly connected to the top of the box body.

[0019] By adopting the above technical solution, the stabilizing blocks are set on both sides of the lower section of the box body to support and stabilize the box body, and a support plate is provided between the feed frame and the box body to support and stabilize the feed frame, which is conducive to maintaining the stability of the feed frame during use.

[0020] In summary, the present invention has the following beneficial technical effects:

[0021] (1) In the present invention, by arranging the first screening plate, the second screening plate and the third screening plate, and the mesh sizes of the first screening plate, the second screening plate and the third screening plate are increased successively, the equipment has a multi-stage screening function, which is beneficial to improving the screening effect of the equipment.

[0022] (2) In the present invention, the cooperation of the vibration assembly and the support assembly facilitates the installation frame to vibrate the first screen plate, the second screen plate and the third screen plate up and down, which is beneficial to increase the sliding speed of the plastic particles, thereby improving the screening efficiency of the equipment and helping to avoid the blockage of the first screen plate, the second screen plate and the third screen plate.

[0023] (3) In the present invention, by setting up the material limiting component, the first reduction motor drives the rotating rod to rotate, and the rotating rod drives multiple material limiting plates to rotate synchronously. Through the cooperation of multiple material limiting plates, it is convenient for plastic particles to enter the box in batches, which helps to avoid excessive material falling at one time and affecting the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic structural diagram of the utility model from a first perspective;

[0025] Figure 2 This is a schematic diagram of the structure of the utility model from a second perspective;

[0026] Figure 3 It is a cross-sectional view of the utility model;

[0027] Figure 4 For this utility model Figure 3 A magnified view of middle A;

[0028] Figure 5 This is a diagram showing the internal structure of the installation frame in the present utility model.

[0029] Description of the numbers in the figure:

[0030] 1. Box body; 2. Mounting box; 3. Feed frame; 4. Inlet and outlet; 5. First reduction motor; 6. Rotating rod; 7. Material limit plate; 8. Mounting frame; 9. First screening plate; 10. Second screening plate; 11. Third screening plate; 12. Discharge plate; 13. Support rod; 14. Pillar; 15. Movable slot; 16. Spring; 17. Second reduction motor; 18. Cam; 19. Buffer block. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0034] The following is combined with Figure 1-5 The utility model is described in further detail.

[0035] See also Figure 1-5The feeding frame 3 is fixedly mounted on the top of the box 1, and the bottom end of the feeding frame 3 extends into the box 1. A material limiting assembly is provided in the feeding frame 3. The material limiting assembly includes a rotating rod 6 rotatably mounted in the feeding frame 3, and a plurality of material limiting plates 7 distributed in a circular array are fixedly mounted on the side wall of the rotating rod 6. A mounting box 2 is fixedly mounted on one side of the feeding frame 3. A first reduction motor 5 is fixedly mounted in the mounting box 2. One end of the rotating rod 6 passes through the mounting box 2 and is fixedly connected to the end of the output shaft of the first reduction motor 5. When the device is in use, the staff puts the plastic particles into the feeding frame 3, and the first reduction motor 5 drives the rotating rod 6 to rotate, and the rotating rod 6 drives multiple material limiting plates 7 to rotate synchronously. Through the cooperation of multiple material limiting plates 7, it is convenient for the plastic particles to enter the box 1 in batches, thereby helping to avoid too much material falling at one time and affecting the screening efficiency.

[0036] A mounting frame 8 is slidably installed in the box body 1, and a first screening plate 9, a second screening plate 10, a third screening plate 11 and a discharge plate 12 are sequentially arranged in the mounting frame 8 from top to bottom. The first screening plate 9, the second screening plate 10, the third screening plate 11 and the discharge plate 12 are located in the mounting frame 8 and are alternately inclined. Two discharge frames are provided on both sides of the box body 1, and the discharge frames are located at the bottom of the inclined ends of the first screening plate 9, the second screening plate 10, the third screening plate 11 and the discharge plate 12 respectively. A vibration assembly is provided at the bottom of the mounting frame 8, and the vibration assembly includes a buffer block 19 fixedly mounted on the bottom end of the mounting frame 8. A second reduction motor 17 is fixedly mounted on the inner wall of the bottom end of the box body 1, and a cam 18 is provided on the side wall of the output shaft of the second reduction motor 17. The cam 18 is driven to rotate by the second reduction motor 17. The cam 18 rotates and contacts the buffer block 19 installed at the bottom of the mounting frame 8. The buffer block 19 is pushed by the cam 18 to bring the mounting frame 8 up synchronously, thereby driving the mounting frame 8 to vibrate.

[0037] Two symmetrically distributed sliders are fixedly installed on both sides of the installation frame 8. The inner wall of the box body 1 is provided with a slide groove that matches the slider on the same side. When the installation frame 8 slides in the box body 1, the installation frame 8 slides in the slide groove on the same side with the slider. The cooperation between the slider and the slide groove is conducive to maintaining the stability of the vibration lifting and lowering of the installation frame 8.

[0038] A support assembly is provided between the bottom end of the mounting frame 8 and the inner wall of the bottom end of the box body 1. The support assembly includes four pillars 14 fixedly mounted on the inner wall of the bottom end of the box body 1. The four pillars 14 are symmetrically distributed on the inner wall of the bottom end of the box body 1. The tops of the pillars 14 are all provided with movable grooves 15. Support rods 13 are slidably installed in the movable grooves 15. The bottom ends of the support rods 13 are fixedly connected to the inner wall of the bottom end of the movable grooves 15 on the same side with springs 16. The tops of the support rods 13 are all fixedly connected to the bottom of the mounting frame 8. When the second reduction motor 17 drives the cam 18 to push When the buffer block 19 is moved, the installation frame 8 is located in the box body 1 and slides. The installation frame 8 slides in the movable groove 15 on the same side with the support rod 13. The support rod 13 pulls the spring 16 of the same group to stretch. The spring 16 can play the role of pulling the installation frame 8. Through the cooperation of the pillar 14, the support rod 13 and the spring 16, the installation frame 8 is supported and stabilized, which is conducive to maintaining the stability of the lifting vibration of the installation frame 8. The elastic force of the spring 16 facilitates the continuous reciprocating motion of the installation frame 8, which is conducive to improving the screening efficiency of the equipment.

[0039] Two symmetrically distributed limit blocks are fixedly installed on the side walls of the bottom ends of the support rods 13, and the inner walls of the movable grooves 15 are provided with limit grooves that match the limit blocks on the same side. When the support rods 13 slide in the movable grooves 15 on the same side, the support rods 13 slide in the limit grooves on the same side with the limit blocks. The cooperation between the limit blocks and the limit grooves is conducive to maintaining the sliding stability of the support rods 13 and helps to prevent the support rods 13 from leaving the movable grooves 15 of the same group.

[0040] Two symmetrically distributed stabilizing blocks are fixedly installed on both sides of the box body 1, and support plates are fixedly installed on both sides of the feed frame 3. The cross-sections of the two support plates are inverted "L" shapes, and the bottom ends of the vertical sections of the two support plates are fixedly connected to the top of the box body 1. The stabilizing blocks are set on both sides of the lower section of the box body 1 to support and stabilize the box body 1, and a support plate is provided between the feed frame 3 and the box body 1, which can support and stabilize the feed frame 3, which is conducive to maintaining the stability of the feed frame 3 during use.

[0041] The implementation principle of the embodiment of the present utility model is as follows: when the device is used, the staff puts the plastic particles into the feed frame 3, and the feed frame 3 is provided with a material limiting component. Through the operation of the material limiting component, the plastic particles can be put into the box body 1 in batches, which helps to avoid too much material falling at one time and affecting the screening efficiency. Subsequently, the vibration component drives the mounting frame 8 to slide up and down synchronously with the first screening plate 9, the second screening plate 10 and the third screening plate 11, which can play the role of driving the first screening plate 9, the second screening plate 10 and the third screening plate 11 to vibrate, which is beneficial to increase the sliding speed of the plastic particles and improve the screening efficiency. This is beneficial to improving the screening efficiency of the equipment, and a support component is provided between the mounting frame 8 and the box body 1, which can support and stabilize the mounting frame 8, and is beneficial to maintaining the stability of the mounting frame 8 sliding up and down. After the plastic particles enter the box body 1, they fall onto the first screening plate 9 for screening. Plastic particles that are too small pass through the first screening plate 9 and fall onto the second screening plate 10, achieving the effect of re-screening, and then pass through the third screening plate 11 for re-screening. Through the cooperation of the first screening plate 9, the second screening plate 10 and the third screening plate 11, the equipment has a multi-stage screening function, which is beneficial to improving the screening effect of the equipment.

[0042] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A plastic particle screening device, comprising a box (1), characterized in that: The box body (1) is fixedly provided with upright posts at the four corners of the bottom end, and both sides of the box body (1) are provided with inlets and outlets (4). A feed frame (3) is fixedly provided at the top end of the box body (1), and the bottom end of the feed frame (3) extends into the box body (1). A material limiting assembly is provided in the feed frame (3). A mounting frame (8) is slidably provided in the box body (1), and a first screening plate (9), a second screening plate (10), a third screening plate (11) and a discharge plate (12) are provided in the mounting frame (8) in order from top to bottom. The first screening plate (9), the second screening plate (10), the third screening plate (11) and the discharge plate (12) are arranged in an alternating and tilted manner in the installation frame (8); two discharge frames are provided on both sides of the box body (1); the discharge frames are respectively located at the bottom of the tilted ends of the first screening plate (9), the second screening plate (10), the third screening plate (11) and the discharge plate (12); a support assembly is provided between the bottom end of the installation frame (8) and the inner wall of the bottom end of the box body (1); and a vibration assembly is provided at the bottom end of the installation frame (8).

2. A plastic particle screening device according to claim 1, characterized in that: The material limiting component comprises a rotating rod (6) rotatably mounted in a feed frame (3); a plurality of material limiting plates (7) distributed in a circular array are fixedly mounted on the side wall of the rotating rod (6); a mounting box (2) is fixedly mounted on one side of the feed frame (3); a first reduction motor (5) is fixedly mounted in the mounting box (2); one end of the rotating rod (6) passes through the mounting box (2) and is fixedly connected to the end of the output shaft of the first reduction motor (5).

3. The plastic particle screening device according to claim 1, characterized in that: The support assembly comprises four pillars (14) fixedly mounted on the inner wall of the bottom end of the box body (1). The four pillars (14) are symmetrically distributed on the inner wall of the bottom end of the box body (1). The top ends of the pillars (14) are each provided with a movable groove (15). A support rod (13) is slidably mounted in the movable groove (15). The bottom end of the support rod (13) is fixedly connected to the inner wall of the bottom end of the movable groove (15) on the same side with a spring (16). The top end of the support rod (13) is fixedly connected to the bottom end of the mounting frame (8).

4. A plastic particle screening device according to claim 3, characterized in that: Two symmetrically distributed limiting blocks are fixedly mounted on the side walls of the bottom ends of the support rods (13), and the inner wall of the movable groove (15) is provided with limiting grooves that match the limiting blocks on the same side.

5. The plastic particle screening device according to claim 1, characterized in that: The vibration assembly includes a buffer block (19) fixedly mounted on the bottom end of the mounting frame (8); a second reduction motor (17) is fixedly mounted on the inner wall of the bottom end of the box body (1); and a cam (18) is fixedly sleeved on the side wall of the output shaft of the second reduction motor (17).

6. The plastic particle screening device according to claim 1, characterized in that: Two symmetrically distributed sliding blocks are fixedly mounted on both sides of the installation frame (8), and a sliding groove matching the sliding blocks on the same side is provided on the inner wall of the box body (1).

7. The plastic particle screening device according to claim 1, characterized in that: Two symmetrically distributed stabilizing blocks are fixedly installed on both sides of the box body (1), and support plates are fixedly installed on both sides of the feed frame (3). The cross-sections of the two support plates are both inverted "L" shapes, and the bottom ends of the vertical sections of the two support plates are fixedly connected to the top of the box body (1).

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