A plastic raw material screening device

Abstract

The utility model belongs to plastic raw material processing technical field, concretely is a kind of plastic raw material screening device, including support frame, the bottom of support frame is installed with support leg, the inner wall of support frame is provided with vibration subassembly, the top of support frame is installed with fixed frame, the top of fixed frame is installed with separation component, is used to separate the adherent plastic particle. The small particle plastic in plastic raw material is made to fall into the top of screen No. 2 by the vibration of screen No. 1, and large particle plastic is continuously conveyed at the top of screen No. 1, when plastic particle moves to the place of rolling disc, driving motor drives rolling disc to rotate, and the rolling disc can roll and separate the adherent large particle in plastic raw material by the rolling bead at the bottom, so that the separated particle can be screened by screen No. 1, to achieve the effect of screening after rolling and separating the large particle plastic adhered together in plastic particle.

Description

Technical Field

[0001] This utility model belongs to the field of plastic raw material processing technology, specifically a plastic raw material screening device. Background Technology

[0002] When plasticizing plastic products, it is necessary to process the plastic raw materials into plastic granules with uniform particle size so that the extruder can melt the plastic raw material granules. During the granulation of plastic granules, the plastic granules may be affected by factors such as the melting state, the precision of the pelletizing equipment, and the cooling rate, which may result in inconsistent particle size such as plastic granules sticking together. Therefore, it is necessary to use a screening device to screen the plastic raw materials with different particle sizes.

[0003] When screening plastic raw material granules, the screening device generally drives the screen to vibrate through a vibrating device to vibrate and screen the plastic granules poured into the top of the screen. However, the particles that are stuck together in the plastic granules cannot be completely separated by vibration alone, resulting in large particles in the plastic granules not being screened and the screening effect being unsatisfactory. Therefore, a plastic raw material screening device is proposed to address the above problems. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology and address the problems of existing equipment, this utility model proposes a plastic raw material screening device.

[0005] The technical solution adopted by this utility model to solve its technical problem is a plastic raw material screening device, including a support frame, a support leg installed at the bottom of the support frame, a vibration component provided on the inner wall of the support frame, a fixed frame installed above the support frame, and a separation component installed at the top of the fixed frame for separating the adhered plastic particles.

[0006] The separation assembly includes a fixed plate fixedly installed on the top of the inner wall of the fixed frame. A drive motor is installed on the top of the fixed plate. A rotating rod is installed through the output shaft of the drive motor through the fixed plate. A telescopic rod is slidably installed inside the rotating rod. A threaded hole is opened on the outer surface of the rotating rod. A threaded post is threaded inside the threaded hole. One end of the threaded post passes through the interior of the rotating rod and abuts against the outer surface of the telescopic rod. A crushing disc is fixedly installed at the bottom of the telescopic rod. Multiple crushing beads are fixedly installed at the bottom of the crushing disc.

[0007] Preferably, a screen is fixedly installed on the inner wall of the fixed frame, a discharge plate is installed on the right side of the fixed frame, a screen is fixedly installed on the bottom of the inner wall of the fixed frame, a discharge plate is installed on the right side of the fixed frame, and a feed inlet is provided on the top left side of the fixed frame.

[0008] Preferably, the crushing disc is positioned above the first screen, and the first screen is positioned above the second screen.

[0009] Furthermore, the telescopic rod can be pulled inside the rotating rod to adjust the distance between the crushing disc and the screen, thereby crushing and separating plastic raw materials of different specifications.

[0010] Preferably, the vibration assembly includes a mounting groove formed in the inner wall of the support frame. The inner wall of the mounting groove has sliding grooves on both the left and right sides. A slider is slidably installed inside each of the two sliding grooves. A connecting plate is fixedly installed between the two sliders. A buffer spring is installed at the bottom and top of the connecting plate. The end of the buffer spring away from the connecting plate is installed on the inner wall of the mounting groove. A connecting rod is fixedly installed on the front of the connecting plate.

[0011] Preferably, the connecting rod is fixedly installed on the back of the fixed frame, and a vibration motor is installed on the left side of the fixed frame.

[0012] Preferably, four vibration components are provided, and the four vibration components are arranged in a rectangular array inside the support frame for connecting and installing the fixed frame.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model uses the vibration of screen one to drop small plastic particles from the plastic raw material onto the top of screen two, while large plastic particles continue to be conveyed at the top of screen one. When the plastic particles move to the crushing disc, the drive motor drives the crushing disc to rotate. The crushing disc can crush and separate the large particles adhering to the plastic raw material through the crushing beads at the bottom, so that the separated particles can be screened through screen one, achieving the effect of crushing and separating the large plastic particles adhering to the plastic raw material and completing the screening.

[0015] 2. In this utility model, when the vibrating motor is powered on and started, the vibrating motor drives the fixed frame to vibrate, which in turn drives the connecting rod and the connecting plate to vibrate together. The buffer springs at the top and bottom of the connecting plate can provide elastic support, avoiding the impact of the vibration of the fixed frame on the support frame, so that the fixed frame is in a suspended state, and the plastic raw materials at the top of the screen one and screen two can be vibrated and screened. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0018] Figure 2This is a schematic diagram of the compaction disc structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the detachable component of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of screen one and screen two of this utility model;

[0021] Figure 5 This is a schematic diagram of the vibration component structure of this utility model.

[0022] Legend:

[0023] In the diagram: 1. Support frame; 11. Support leg; 2. Vibration assembly; 201. Mounting groove; 202. Slide groove; 203. Slider; 204. Connecting plate; 205. Buffer spring; 206. Connecting rod; 21. Fixing frame; 22. Screen one; 23. Discharge plate one; 24. Screen two; 25. Discharge plate two; 26. Feed inlet; 3. Separation assembly; 301. Fixing plate; 302. Drive motor; 303. Rotating rod; 304. Telescopic rod; 305. Threaded column; 306. Compressing disc; 307. Compressing beads; 4. Vibration motor. Detailed Implementation

[0024] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-5 As shown, a plastic raw material screening device includes a support frame 1, with support legs 11 installed at the bottom of the support frame 1. Four support legs 11 are provided to support the support frame 1 and place it on the ground. A vibration component 2 is provided on the inner wall of the support frame 1. A fixed frame 21 is installed on the top of the support frame 1. A separation component 3 is installed on the top of the fixed frame 21 for separating the adhered plastic particles.

[0026] The separation component 3 includes a fixed plate 301 fixedly installed on the top of the inner wall of the fixed frame 21. A drive motor 302 is installed on the top of the fixed plate 301. The output shaft of the drive motor 302 passes through the fixed plate 301 and is mounted on a rotating rod 303. A telescopic rod 304 is slidably installed inside the rotating rod 303. A threaded hole is opened on the outer surface of the rotating rod 303. A threaded post 305 is threadedly connected inside the threaded hole. One end of the threaded post 305 passes through the interior of the rotating rod 303 and abuts against the outer surface of the telescopic rod 304. A crushing disc 306 is fixedly installed at the bottom of the telescopic rod 304. Multiple crushing beads 307 are fixedly installed at the bottom of the crushing disc 306.

[0027] A screen 22 is fixedly installed on the inner wall of the fixed frame 21. A discharge plate 23 is installed on the right side of the fixed frame 21. A screen 24 is fixedly installed on the bottom of the inner wall of the fixed frame 21. A discharge plate 25 is installed on the right side of the fixed frame 21. A feed inlet 26 is provided on the top left side of the fixed frame 21. The crushing disc 306 is positioned above the screen 22, and the screen 24 is positioned above the screen.

[0028] Through the above technical solution, the fixing plate 301 is installed and fixed to the top of the inner wall of the fixing frame 21, so that the drive motor 302 is installed on the top of the fixing plate 301. The output shaft at the bottom of the drive motor 302 passes through the fixing plate 301 and is connected to the rotating rod 303. When the drive motor 302 is started, it can drive the rotating rod 303 to rotate. The inside of the rotating rod 303 is set as a hollow structure. The telescopic rod 304 can be inserted into the inside of the rotating rod 303 for pulling and telescopic. The threaded post 305 is threaded into the inside of the threaded hole. Tightening the threaded post 305 can make one end of the threaded post 305 abut against the outer surface of the telescopic rod 304, thereby fixing and limiting the telescopic rod 304 inside the rotating rod 303. The bottom of the telescopic rod 304 is fixedly installed on the crushing disc 306, and the bottom of the crushing disc 306 is provided with multiple crushing balls 307. A screen 22 is fixedly installed on the inner wall of the fixed frame 21. The screen 22 is located on top of the screen 24. The discharge plate 23 and the screen 22 are in a horizontal position, and the discharge plate 25 and the screen 24 are in a horizontal position. The plastic raw material screened on the screen 22 and the screen 24 can flow out. The crushing disc 306 and the crushing beads 307 are adjusted to a suitable position by the telescopic rod 304 so that the crushing disc 306 and the crushing beads 307 can contact the plastic raw material screened on the top of the screen 22. Then, the motor 302 drives the crushing disc 306 to rotate, so that the crushing beads 307 can crush and separate the large particles adhering in the plastic raw material. This avoids the situation where multiple plastic raw materials are stuck together and cannot be screened, and achieves the effect of crushing and separating the adhering particles in the plastic raw material, making the screening of plastic raw material more comprehensive.

[0029] Considering the question of how the fixed frame 21 drives the first screen 22 and the second screen 24 to perform vibratory screening, the following is presented: Figure 2 , Figure 4 and Figure 5 The specific structure of the vibration component 2 is disclosed. The vibration component 2 includes a mounting groove 201 formed in the inner wall of the support frame 1. Sliding grooves 202 are formed on both the left and right sides of the inner wall of the mounting groove 201. Sliding blocks 203 are slidably installed inside the two sliding grooves 202. A connecting plate 204 is fixedly installed in the middle of the two sliding blocks 203. Buffer springs 205 are installed at the bottom and top of the connecting plate 204. The end of the buffer spring 205 away from the connecting plate 204 is installed on the inner wall of the mounting groove 201. A connecting rod 206 is fixedly installed on the front of the connecting plate 204.

[0030] The connecting rod 206 is fixedly installed on the back of the fixed frame 21, and the vibration motor 4 is installed on the left side of the fixed frame 21. Four vibration components 2 are provided, which are arranged in a rectangular array inside the support frame 1 and are used to connect and install the fixed frame 21.

[0031] Through the above technical solution, sliders 203 are fixedly installed on both the left and right sides of the connecting plate 204, so that the connecting plate 204 can be installed into the interior of the mounting groove 201 with the help of the sliders 203. The sliders 203 are slidably engaged in the sliding grooves 202 opened on the left and right sides of the inner wall of the mounting groove 201. Multiple buffer springs 205 are installed on the top and bottom of the connecting plate 204, so that the other end of the buffer springs 205 can be fixed and limited on the inner wall of the mounting groove 201. Multiple connecting rods 206 are fixedly installed on the front of the connecting plate 204, and the top of the front of the multiple connecting rods 206 are fixedly installed on the fixed On the front of frame 21, one corner of the outer surface of fixed frame 21 is connected. Four vibration components 2 are provided, which can connect the four corners of fixed frame 21 to support frame 1. When vibration motor 4 is powered on and started, vibration motor 4 drives fixed frame 21 to vibrate, which will drive connecting rod 206 and connecting plate 204 to vibrate together. In this way, buffer springs 205 at the top and bottom of connecting plate 204 can provide elastic support to avoid the impact of fixed frame 21 vibration on support frame 1, so that fixed frame 21 is in a suspended state, and plastic raw materials on the top of screen 1 22 and screen 2 24 can be vibrated and screened.

[0032] It should be noted that a controller is installed on the front of the support frame 1, which can power the drive motor 302 and the vibration motor 4 and control their start and stop.

[0033] In summary, the working principle of this utility model is as follows:

[0034] When screening plastic raw materials for particles of different sizes, the controller first starts the vibration motor 4 and drive motor 302. The telescopic rod 304 is pulled and adjusted to a suitable position within the rotating rod 303, and then tightened and fixed by the threaded column 305, so that the gap between the crushing disc 306 and the screen 22 is consistent with the gap for normal particle-sized plastic to pass through. The plastic raw material is poured into the top of the screen 22 through the feed inlet 26. The vibration motor 4 drives the screen 22 and the screen 24 to vibrate. The connecting plate 204 drives the buffer spring 205 to vibrate together in the mounting groove 201, so that the buffer spring 205 can provide elastic support for the fixed frame 21, reducing the impact force of the fixed frame 21 on the support frame 1. The vibration of the screen 22 causes small plastic particles to fall into the top of the screen 24, while larger particles... The plastic continues to be conveyed at the top of screen 22. When the plastic particles move to the crushing disc 306, the drive motor 302 drives the crushing disc 306 to rotate. The crushing disc 306 can crush and separate the large particles adhering to the plastic raw material through the crushing beads 307 at the bottom, so that the separated particles can be screened through screen 22. When the plastic particles on screen 22 vibrate and move to the far right, they can flow out and be collected through the discharge plate. The plastic raw material falling into the top of screen 24 can also be vibrated and screened to separate the debris and impurities mixed in the plastic raw material. The plastic particles fall from screen 24 and flow out and are collected from the discharge plate 25 after screening. This achieves the effect of crushing and separating the large plastic particles adhering to the plastic particles, and the screening of plastic particles is more comprehensive and thorough.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A plastic raw material screening device comprising a support frame (1), the bottom of which is provided with support legs (11), characterized in that: The inner wall of the support frame (1) is provided with a vibration assembly (2), the upper portion of the support frame (1) is provided with a fixed frame (21), the top of the fixed frame (21) is provided with a separation assembly (3) for separating the adhered plastic particles. The separation assembly (3) comprises a fixed plate (301) fixedly installed on the inner wall of the fixed frame (21), a driving motor (302) is installed on the top of the fixed plate (301), a rotating rod (303) is installed on the output shaft of the driving motor (302) and penetrates through the fixed plate (301), a telescopic rod (304) is slidably installed in the rotating rod (303), a threaded hole is formed in the outer surface of the rotating rod (303), a threaded column (305) is screwed into the threaded hole, one end of the threaded column (305) penetrates into the rotating rod (303) and abuts against the outer surface of the telescopic rod (304), and a rolling disc (306) is fixedly installed on the bottom of the telescopic rod (304).

2. The plastic feedstock screening device of claim 1, wherein: The inner wall of the fixed frame (21) is fixedly provided with a screen (22), the right side of the fixed frame (21) is provided with a discharge plate (23), the bottom of the inner wall of the fixed frame (21) is fixedly provided with a screen (24), the right side of the fixed frame (21) is provided with a discharge plate (25), and the top left side of the fixed frame (21) is provided with a feeding port (26).

3. The plastic feedstock screening device of claim 2, wherein: The rolling disc (306) is arranged above the screen (22), and the screen (22) is arranged above the screen (24).

4. The plastic feedstock screening device of claim 3, wherein: The vibration assembly (2) comprises an installation groove (201) formed in the inner wall of the support frame (1), a sliding groove (202) is formed in the inner wall of the installation groove (201) on the left and right sides, a sliding block (203) is slidably installed in the sliding groove (202), a connecting plate (204) is fixedly installed in the middle of the sliding block (203), a buffer spring (205) is installed on the bottom and top of the connecting plate (204), one end of the buffer spring (205) away from the connecting plate (204) is installed on the inner wall of the installation groove (201), and a connecting rod (206) is fixedly installed on the front surface of the connecting plate (204).

5. The plastic feedstock screening device of claim 4, wherein: The connecting rod (206) is fixedly installed on the back surface of the fixed frame (21), and the left side of the fixed frame (21) is provided with a vibration motor (4).

6. The plastic feedstock screening device of claim 5, wherein: The vibration assembly (2) is provided with four vibration assemblies (2), and the four vibration assemblies (2) are arranged in a rectangular array in the inner portion of the support frame (1) and are used for connecting and installing the fixed frame (21).

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