A waste recycling device for plastic production

Abstract

The application relates to the technical field of plastic waste recycling equipment, and discloses a waste recycling equipment for plastic production, which is used to solve the problems of poor cleaning of plastic waste flying missiles during crushing and poor cleaning of the plastic waste after crushing. During the crushing process, a power cylinder pulls a power plate, the power plate pushes a downward pressing rod to press the waste above the two crushing rollers, the waste enters between the two crushing rollers, and the waste flying missiles entering between the two crushing rollers are prevented; the downward pressing rod pushes a supporting rod and a sliding block to move downward, the sliding block drives the supporting shaft, a turnover plate and a power gear to move downward, the power gear moving downward drives the supporting shaft and the turnover plate to rotate synchronously, so that the turnover plate pushes the crushed waste cleaned below the crushing roller to the discharge port of the cleaning pool; meanwhile, the turnover plate moving downward presses the crushed waste into the washing liquid in the cleaning pool, the crushed waste is fully cleaned, and the floating of the crushed waste is prevented to cause incomplete cleaning.

Description

Technical Field

[0001] This application relates to the technical field of plastic waste recycling equipment, and more particularly to a waste recycling equipment for plastic production. Background Technology

[0002] Plastic production waste refers to waste generated during the manufacturing and processing of plastic products. It is not yet a commodity in circulation and mainly originates from start-up and shutdown materials, scraps and gate materials, defective and scrap products, machine cleaning materials, and waste materials that have fallen to the ground. Due to its high quality, plastic production waste has significant recycling and reuse value. Plastic production waste is generally recycled using plastic waste recycling equipment. During the recycling process, the waste is typically crushed first. The crushed waste falls into a washing tank, and after washing, it is transported to a melt extruder. After being extruded, the strip-shaped waste is granulated by a pelletizer to produce granular plastic pellets.

[0003] In the waste crushing and cleaning stage of plastic production, plastic waste is generally crushed by two relatively rotating crushing rollers. Due to the cylindrical structure of plastic waste, when the cylindrical plastic waste comes into contact with the two crushing rollers for crushing, it tends to bounce upwards. The cylindrical plastic waste is not only difficult to crush, but may also fly to the outside of the crushing chamber. Furthermore, after the crushed plastic waste falls into the washing tank, it floats on the surface of the washing liquid in the washing tank. Relying solely on the cleaning method during floating and conveying is insufficient to effectively remove impurities from the plastic waste, affecting the quality of subsequent plastic production. Summary of the Invention

[0004] This application proposes a waste recycling device for plastic production, which has the advantages of preventing plastic waste from flying during crushing and enhancing the cleaning effect of plastic waste after crushing, thereby solving the problems of plastic waste flying during crushing and poor cleaning effect of plastic waste after crushing.

[0005] To achieve the above objectives, this application adopts the following technical solution: a waste recycling device for plastic production, comprising a washing tank, a crushing chamber, crushing rollers, a power mechanism, and a control box. The side walls of the washing tank and the crushing chamber are provided with anti-missile mechanisms. The anti-missile mechanisms include: a support mechanism, fixedly installed on the inner walls of both sides of the washing tank; a support rod, one end of which is inserted into the support mechanism, and the other end extending from between the two crushing rollers to above the crushing rollers, the support mechanism being used to support and reset the support rod; a pressure rod, both ends of which are fixedly connected to the top ends of the two support rods; a power plate, symmetrically inserted into the side wall of the crushing chamber; and a power cylinder, fixedly installed on the side wall of the crushing chamber, with its drive end fixedly connected to the inner wall of the power plate.

[0006] Furthermore, the support mechanism includes: a support shell, which is fixedly installed on the inner walls of both sides of the cleaning pool; a support spring, whose bottom end is fixedly connected to the bottom end inside the support shell; and a sliding block, which is fixedly connected to the top end of the support spring and slidably installed inside the support shell, wherein the top end of the sliding block is fixedly connected to the support rod.

[0007] Furthermore, the lower end face of the power plate inside the crushing chamber is an inclined surface that gradually decreases towards the inner wall of the crushing chamber, and the inclined surface of the power plate is in close contact with the upper end face of the lower pressure rod.

[0008] Furthermore, the support spring is always in a compressed state.

[0009] Furthermore, a triangular strip is fixedly installed at the top of the pressure rod, with the tip of the triangular strip pointing vertically upward. A guide plate is fixedly connected to the middle position of the power plate. The guide plate penetrates the inner wall of the crushing chamber and extends into the crushing chamber. The guide plate is inclined on one side inside the crushing chamber, and the guide plate inside the crushing chamber has an inclined surface that gradually rises towards the inner wall of the crushing chamber.

[0010] Furthermore, a material-turning mechanism is connected to the support mechanism, the material-turning mechanism comprising: a support shaft, both ends of which are movably inserted into the opposing surfaces of the sliding blocks; a material-turning plate, fixedly sleeved on the support shaft; a power gear, fixedly sleeved on the support shaft near both ends; a plurality of hinge blocks, hinged to the side wall of the support shell via hinge shafts and equidistantly arranged, the hinge blocks meshing with the power gear; and a baffle, fixedly installed on the side wall of the support shell and closely abutting the end of the hinge block away from the power gear.

[0011] Furthermore, the hinge block has a rounded corner above the side wall of the baffle, and the axis of the rounded corner of the hinge block is on the same straight line as the axis of the hinge shaft.

[0012] Furthermore, a reinforced cleaning mechanism is installed on the support mechanism, which includes: a plurality of power columns fixedly connected to the toothed wall of the power gear facing the support shell; a vibrating strip fixedly connected to the side wall of the support shell, wherein the side wall of the vibrating strip facing the power gear is a wavy surface, and the power columns on the power gear abut against the wavy surface of the vibrating strip; a plurality of reinforcing strips arrayed on the end faces of both sides of the flipping plate; and the length of the support shaft is less than the distance between the inner walls of the two sliding blocks.

[0013] Furthermore, the wave surfaces of the two opposing sides of the shaking strips are arranged in parallel.

[0014] This application has the following beneficial effects:

[0015] 1. The present application provides a waste recycling device for plastic production. During the crushing process of the crushing rollers, the power plate is pulled by the power cylinder, which pushes the pressure rod downward. The downward pressure rod presses down on the waste material directly above the two crushing rollers, so that the waste material enters between the two crushing rollers, thereby preventing the waste material entering between the two crushing rollers from flying.

[0016] 2. This application provides a waste recycling device for plastic production. A power cylinder pulls a power plate, which in turn pushes a downward pressure rod. This downward pressure rod pushes a support rod and a sliding block downwards simultaneously. The sliding block then drives the support shaft, a tilting plate, and a power gear downwards. During the downward movement of the power gear, a hinge block obstructs its movement, causing the power gear to rotate. This rotating power gear drives the support shaft and the tilting plate to rotate synchronously. The tilting plate then pushes the cleaned waste material below the crushing roller to the outlet of the cleaning tank, preventing the waste material from accumulating in the cleaning tank below the crushing roller. Simultaneously, the downward-moving tilting plate presses the waste material into the washing liquid in the cleaning tank, thoroughly cleaning the waste material and preventing it from floating and causing incomplete cleaning.

[0017] 3. The waste recycling equipment for plastic production provided in this application involves a power gear driving a support shaft and a tilting plate to move down and rotate synchronously. During this process, the power column on the power gear intermittently abuts against the wave surface of the vibrating strip. Furthermore, the protrusions on the wave surface of the vibrating strip push the power column, power gear, support shaft, and tilting plate back and forth in a cyclical manner. This causes the reinforcing strip on the tilting plate to move the crushed plastic waste back and forth in the washing liquid, thereby enhancing the cleaning of the crushed plastic waste. Attached Figure Description

[0018] The accompanying drawings, which form part of this specification, illustrate embodiments disclosed in this application and, together with the specification, serve to explain the principles disclosed in this application.

[0019] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein:

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a rear view of the present invention;

[0022] Figure 3 This is a cross-sectional view of the cleaning tank and crushing chamber of the present invention;

[0023] Figure 4 This is a schematic diagram of the support mechanism, support spring, and sliding block of the present invention;

[0024] Figure 5 For the present invention Figure 4Enlarged view of the local structure at point A;

[0025] Figure 6 This is a cross-sectional view of the crushing chamber when the feed hopper is removed according to the present invention;

[0026] Figure 7 This is a schematic diagram of the internal structure of the support shell of the present invention;

[0027] Figure 8 For the present invention Figure 7 Enlarged view of the local structure at point B;

[0028] Figure 9 This is a schematic diagram showing the connection between the support shaft, the flipping plate, and the sliding block of the present invention;

[0029] Figure 10 This is a longitudinal sectional view of the cleaning tank, crushing chamber, and support shell of the present invention;

[0030] Figure 11 For the present invention Figure 10 Enlarged view of the local structure at point C.

[0031] In the diagram: 1. Washing tank; 2. Crushing chamber; 21. Feed hopper; 3. Crushing roller; 41. Power motor; 42. Chain; 43. Transmission gear; 5. Control box; 61. Support mechanism; 611. Support shell; 612. Support spring; 613. Sliding block; 62. Support rod; 63. Downward pressure rod; 64. Power plate; 65. Power cylinder; 66. Guide plate; 67. Triangular strip; 71. Support shaft; 72. Tilting plate; 73. Power gear; 74. Hinge block; 75. Baffle; 81. Power column; 82. Vibrating strip; 83. Reinforcing strip. Detailed Implementation

[0032] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0033] Example 1

[0034] Please see Figures 1-3A waste recycling device for plastic production includes a washing tank 1, a crushing chamber 2, crushing rollers 3, a power mechanism, and a control box 5. The crushing chamber 2 is fixedly installed on one side of the top of the washing tank 1. A feeding hopper 21 for feeding materials is fixedly installed on the top of the crushing chamber 2. Two parallel crushing rollers 3 are inserted into the feeding hopper 21. The crushing rollers 3 squeeze, shear, and crush the fed materials. A bracket is fixedly installed on the side wall of the washing tank 1. A power mechanism is installed above the bracket. The power mechanism includes a power motor 41, a chain 42, and a transmission gear 43. The power motor 41 is fixedly installed on one side above the bracket. The output shaft of the power motor 41 is connected to one end of one of the crushing rollers 3 through the chain 42. The other ends of the two crushing rollers 3 are driven by the transmission gear 43. The control box 5 is fixedly installed on the other side above the bracket. The control box 5 is used to control the operation of the device.

[0035] Please see Figures 1-6 The side walls of the washing tank 1 and the crushing chamber 2 are equipped with anti-missile mechanisms to prevent waste material from flying out between the two crushing rollers 3. The anti-missile mechanism includes a support mechanism 61, a support rod 62, a pressing rod 63, a power plate 64, and a power cylinder 65. The support mechanism 61 is fixedly installed on the inner walls of both sides of the washing tank 1. The support mechanism 61 is used to support and reset the support rod 62. One end of the support rod 62 is inserted into the support mechanism 61, and the other end of the support rod 62 extends from the middle of the ends of the two crushing rollers 3 to the crushing roller 3. Above, the top ends of two support rods 62 are fixedly connected to the two ends of the same pressure rod 63. Two power plates 64 are symmetrically inserted on the side wall of the crushing chamber 2. The lower end face of the power plate 64 inside the crushing chamber 2 is a slope that gets lower and lower as it approaches the inner wall of the crushing chamber 2. The slope of the power plate 64 is in close contact with the upper end face of the pressure rod 63. The power cylinder 65 is fixedly installed on the side wall of the crushing chamber 2 facing the inner wall of the power plate 64. The drive end of the power cylinder 65 is fixedly connected to the inner wall of the power plate 64. The power cylinder 65 is electrically connected to the control box 5.

[0036] The support mechanism 61 includes a support shell 611, a support spring 612, and a sliding block 613. The support shell 611 is fixedly installed on the inner walls of both sides of the cleaning pool 1. The support spring 612 is fixedly connected to the bottom of the support shell 611. The sliding block 613 is fixedly connected to the top of the support spring 612 and is slidably installed inside the support shell 611. The top of the sliding block 613 is fixedly connected to the bottom of the support rod 62, and the bottom of the support rod 62 is inserted into the support shell 611.

[0037] When using waste recycling equipment to crush plastic waste, the washing tank 1 contains a certain amount of washing liquid. At this time, the plastic waste is fed into the feed hopper 21. The power motor 41 is started through the control box 5. The output shaft of the power motor 41 drives the crushing rollers 3 to rotate relative to each other through the chain 42 and the transmission gear 43, crushing the incoming plastic waste. At the same time, the control box 5 controls the drive end of the power cylinder 65 to move back and forth, so that the drive end of the power cylinder 65 drives the power plate 64 to move. When the power plate 64 moves into the crushing chamber 2, the inclined surface at the lower end of the power plate 64 squeezes the pressure rod 63, so that the pressure rod 63 presses down on the plastic waste directly above the two crushing rollers 3, so that the plastic waste enters between the two crushing rollers 3. Furthermore, the downward pressure of the pressure rod 63 presses down on the plastic waste, preventing the waste entering between the two crushing rollers 3 from flying away.

[0038] It should be further explained that the support spring 612 is always in a compressed state. The compressed support spring 612 has a supporting elastic force on the sliding block 613. After the driving end of the power cylinder 65 drives the power plate 64 to press the pressure rod 63 to the final position, the driving end of the power cylinder 65 drives the power plate 64 to reset. The supporting elastic force of the support spring 612 pushes the sliding block 613, the support rod 62 and the pressure rod 63 to reset.

[0039] In this embodiment, a triangular strip 67 is fixedly installed at the top of the pressing rod 63, and the cross-section of the triangular strip 67 is an isosceles triangle. The tip of the triangular strip 67 points vertically upward. A guide plate 66 is fixedly connected to the middle position of the power plate 64. The guide plate 66 penetrates the inner wall of the crushing chamber 2 and extends into the crushing chamber 2. The guide plate 66 is inclined on one side inside the crushing chamber 2, and the guide plate 66 inside the crushing chamber 2 has an inclined surface that gradually rises towards the inner wall of the crushing chamber 2. When the driving end of the power cylinder 65 drives the power plate 64 to press the pressing rod 63, the power plate 64... The guide plate 66 is moved, and the inclined surface of the guide plate 66 pushes the plastic waste into the crushing chamber 2. After the pressure rod 63 reaches the final position, the drive end of the power cylinder 65 drives the power plate 64 to reset. Under the support of the support spring 612, the support spring 612 pushes the sliding block 613, support rod 62, pressure rod 63 and triangular strip 67 to move upward. The upward-moving triangular strip 67 pushes the plastic waste entering from above to both sides, so that the plastic waste moves horizontally and vertically at the same time, preventing it from accumulating in the crushing chamber 2 and the feed hopper 21.

[0040] Example 2

[0041] Example 2 is a further improvement based on Example 1.

[0042] Unlike Example 1, please refer to Figures 1-11The support mechanism 61 is connected to a turning mechanism for turning over the crushed material in the washing pool 1 at the lower end of the crushing roller 3. The turning mechanism includes a support shaft 71, a turning plate 72, a power gear 73, a hinge block 74, and a baffle 75. The two ends of the support shaft 71 are movably inserted into the opposite surfaces of the sliding block 613. The turning plate 72 is fixedly sleeved in the middle position of the support shaft 71. The power gear 73 is fixedly sleeved near the two ends of the support shaft 71. Several hinge blocks 74 are hinged to the side wall of the support shell 611 at equal intervals through the hinge shaft. The hinge blocks 74 mesh with the power gear 73. The baffle 75 is fixedly installed on the side wall of the support shell 611, and the baffle 75 is close to the end of the hinge block 74 away from the power gear 73. The baffle 75 restricts the hinge block 74. The upper part of the hinge block 74 close to the side wall of the baffle 75 is provided with a rounded corner. The axis of the rounded corner of the hinge block 74 is on the same straight line as the axis of the hinge shaft.

[0043] When the power cylinder 65 drives the power plate 64 to press the pressing rod 63, causing the pressing rod 63 to move downward, the moving pressing rod 63 drives the support rod 62, the pressing rod 63, the support shaft 71, the tilting plate 72, and the power gear 73 to move downward synchronously. At this time, due to the restriction of the baffle 75 on the hinge block 74, the hinge block 74 cannot rotate around the hinge shaft. The hinge block 74 hinders the downward movement of the power gear 73, thereby causing the power gear 73 to rotate. The rotating power gear 73 drives the support... Shaft 71 and tipping plate 72 rotate synchronously. The downward-moving and rotating tipping plate 72 pushes the cleaned waste material below the crushing roller 3, causing the waste material to move towards the discharge port of the washing tank 1, thereby preventing the crushed waste material from accumulating in the washing tank 1 below the crushing roller 3. At the same time, the downward-moving tipping plate 72 pours the freshly crushed waste material into the washing tank 1 and presses it into the washing liquid in the washing tank 1, thoroughly cleaning the crushed waste material and preventing the crushed waste material from floating and causing incomplete cleaning.

[0044] It should be noted that the number of hinge blocks 74 on the support shell 611 is just enough to make the power gear 73 rotate 180°, and there is a large friction at the insertion point of the support shaft 71 and the sliding block 613. When there is no active external force, the support shaft 71 will not drive the flipping plate 72 to rotate.

[0045] In addition, in this embodiment, a reinforced cleaning mechanism for cleaning crushed waste is installed on the support mechanism 61. The reinforced cleaning mechanism includes a power column 81, a vibrating strip 82, and a reinforcing strip 83. A power column 81 of the same length is fixedly connected to each tooth wall of the power gear 73 facing the support housing 611. A vibrating strip 82 is fixedly connected to the side wall of the support housing 611, and the side wall of the vibrating strip 82 facing the power gear 73 is a wavy surface. The power column 81 on the power gear 73 abuts against the wavy surface of the vibrating strip 82. The wavy surfaces of the two opposing sides of the vibrating strip 82 are parallel, ensuring that the power column 81 on the power gear 73 at both ends of the support shaft 71 can simultaneously contact the wavy surfaces of the two vibrating strips 82. Please refer to [link to relevant documentation]. Figure 11 The length of the support shaft 71 is less than the distance between the inner walls of the two sliding blocks 613, ensuring that the support shaft 71 can move back and forth in the sliding block 613 in the axial direction. Several reinforcing strips 83 are arrayed on the end faces of both sides of the flip plate 72.

[0046] When the power cylinder 65 drives the power plate 64 to press down the pressure rod 63, the pressure rod 63 drives the support rod 62, the pressure rod 63, the support shaft 71, the tilting plate 72 and the power gear 73 to move downward. The hinge block 74 hinders the downward movement of the power gear 73, thereby causing the power gear 73 to rotate. The rotating power gear 73 drives the power column 81 to rotate synchronously, so that the power column 81 on the power gear 73 at both ends of the support shaft 71 intermittently abuts the wave surface of the vibrating strip 82. The protruding part of the wave surface of the vibrating strip 82 lifts the power column 81, so that the power column 81 drives the power gear 73, the support shaft 71 and the tilting plate 72 to move back and forth in the axial direction of the support shaft 71. The reciprocating movement of the tilting plate 72 drives the reinforcing strip 83 to move synchronously, so that the reinforcing strip 83 drives the crushed plastic waste to shake back and forth in the washing liquid, thereby enhancing the cleaning effect of the crushed plastic waste.

Claims

1. A waste recycling device for plastic production, comprising a washing tank (1), a crushing chamber (2), crushing rollers (3), a power mechanism, and a control box (5), wherein the crushing chamber (2) is fixedly installed on one side of the top of the washing tank (1), and a feeding hopper (21) for feeding materials is fixedly installed on the top of the crushing chamber (2), wherein two parallel crushing rollers (3) are inserted into the feeding hopper (21), a bracket is fixedly installed on the side wall of the washing tank (1), a power mechanism is provided above the bracket, and the control box (5) is fixedly installed on the other side above the bracket, characterized in that: The side walls of the cleaning pool (1) and the crushing chamber (2) are provided with anti-missile mechanisms, which include: a support mechanism (61), a support rod (62), a pressure rod (63), a power plate (64), and a power cylinder (65). The support mechanism (61) is fixedly installed on the inner walls of both sides of the cleaning pool (1); The support rod (62) has one end inserted into the support mechanism (61) and the other end extends from between the two crushing rollers (3) to above the crushing rollers (3). The support mechanism (61) is used to support and reset the support rod (62). The pressure rod (63) is fixedly connected at both ends to the top of the two support rods (62); The power plate (64) is symmetrically inserted into the side wall of the crushing chamber (2). The lower end face of the power plate (64) in the crushing chamber (2) is an inclined surface that gets lower and lower as it approaches the inner wall of the crushing chamber (2). The inclined surface of the power plate (64) is in close contact with the upper end face of the lower pressure rod (63). The power cylinder (65) is fixedly installed on the side wall of the crushing chamber (2), and the drive end is fixedly connected to the inner wall of the power plate (64); The support mechanism (61) includes: The support shell (611) is fixedly installed on the inner walls of both sides of the cleaning tank (1); The support spring (612) is fixedly connected at its bottom end to the bottom end inside the support shell (611); The sliding block (613) is fixedly connected to the top of the support spring (612) and slidably installed in the support shell (611). The top of the sliding block (613) is fixedly connected to the support rod (62). A material-turning mechanism is connected to the support mechanism (61), and the material-turning mechanism includes: The support shaft (71) is movably inserted into the opposite surfaces of the sliding block (613) at both ends; The material turning plate (72) is fixedly sleeved on the support shaft (71); The power gear (73) is fixedly sleeved on the support shaft (71) near both ends; Several hinge blocks (74) are hinged to the side wall of the support shell (611) via hinge shafts and are equidistantly arranged. The hinge blocks (74) mesh with the power gear (73). The baffle (75) is fixedly installed on the side wall of the support shell (611) and closely abuts the end of the hinge block (74) away from the power gear (73); The hinge block (74) is provided with a rounded corner above the side wall of the baffle (75), and the axis of the rounded corner of the hinge block (74) is on the same straight line as the axis of the hinge shaft. A reinforced cleaning mechanism is installed on the support mechanism (61), the reinforced cleaning mechanism comprising: Several power columns (81) are fixedly connected to the tooth wall of the power gear (73) facing the support shell (611); The vibrating bar (82) is fixedly connected to the side wall of the support shell (611). The side wall of the vibrating bar (82) facing the power gear (73) is a wavy surface. The power column (81) on the power gear (73) abuts against the wavy surface of the vibrating bar (82). Several reinforcing strips (83) are arrayed and installed on the end faces of both sides of the flip plate (72); The length of the support shaft (71) is less than the distance between the inner walls of the two sliding blocks (613).

2. The waste recycling equipment for plastic production according to claim 1, characterized in that: The support spring (612) is always in a compressed state.

3. The waste recycling equipment for plastic production according to claim 1, characterized in that: A triangular strip (67) is fixedly installed at the top of the pressure rod (63), with the tip of the triangular strip (67) pointing vertically upward. A guide plate (66) is fixedly connected to the middle position of the power plate (64). The guide plate (66) penetrates the inner wall of the crushing chamber (2) and extends into the crushing chamber (2). The guide plate (66) is inclined on one side inside the crushing chamber (2), and the guide plate (66) inside the crushing chamber (2) is an inclined surface that gradually rises towards the inner wall of the crushing chamber (2).

4. The waste recycling equipment for plastic production according to claim 1, characterized in that: The wave surfaces of the two shaking bars (82) are arranged in parallel on opposite sides.

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