Waste plastic bottle unpacking and crushing device and crushing method

Abstract

The invention provides a waste plastic bottle unpacking and crushing device and a crushing method, the waste plastic bottle unpacking and crushing device comprises a dividing cabin body, and the dividing cabin body comprises a front-end feeding port and a rear-end dividing port; the coiling cabin body is fixed at the top of the dividing cabin body and comprises a rotating motor, a lifting cylinder body and a crushing cabin, the upper part of the coiling cabin body is communicated with the gap, an opening and closing assembly and a press-fit assembly are arranged in the coiling cabin body, and the coiling cabin body comprises press-fit cabin bodies which are arranged on two sides of the crushing cabin and laterally communicated with the crushing cabin; when the metal wire of the blocky plastic bottle is not removed, the opening and closing assembly rotates to support the bottom of the blocky plastic bottle for supporting; when the metal wires of the blocky plastic bottles are gradually removed, the opening and closing assembly rotates to guide the plastic bottles to fall into the crushing cabin; and after a single batch of blocky plastic bottles are disassembled, the opening and closing assembly guides the metal wires to fall into the pressing cabin, the integrated unpacking device which is faster can be provided, the tedious flow of assembly line unpacking is optimized, and the unpacking method which is safer and more efficient is provided.

Description

[0001] The present invention relates to the technical field of recycling of waste plastic bottles, and particularly to a device and method for unpacking and crushing waste plastic bottles. Background Art

[0002] Waste recycling stations and waste transfer centers will press waste plastic bottles into rectangular blocks and attach steel wires and steel meshes to them to prevent them from spreading during subsequent transportation and save space. When transporting them to the sorting and recycling center, it is necessary to unpack and sort the rectangular waste plastic bottles. The sorting and recycling center cuts the steel mesh on one side of the package, and then uses a turning and throwing roller cutter to follow the advancement of the block of plastic bottles layer by layer to turn out the bottles from the pressing block. This method is prone to throwing the bottles out during implementation, consuming a large amount of labor for secondary collection. Moreover, during the turning and throwing process, the roller cutter is likely to break and shatter the lateral steel mesh and turn it into the material area together, which will be carried to the next sorting link, easily causing damage to the machinery in the next link. In addition, when the large turning and throwing roller cutter is working, workers need to stay away. In a complex working state, manual intervention cannot be carried out, resulting in low efficiency and poor applicability.

[0003] To achieve the above object, the present invention provides a device and method for unpacking and crushing waste plastic bottles, which can solve the problems raised in the above background art. Summary of the Invention

[0004] The present invention adopts the following technical solutions to achieve:

[0005] A device and method for unpacking and crushing waste plastic bottles, including

[0006] A splitting cabin, including a front feeding port and a rear splitting port. There is a gap between the front feeding port and the rear splitting port for temporarily storing unpacked plastic bottles. The gap is hollowed out above for picking up the external metal wire of the block of plastic bottles. The bottom of the gap is provided with a bottom splitting group for cutting the metal wire. The gap is hollowed out below for the disassembled block of plastic bottles to fall. Inside the splitting cabin, there is a lateral splitting group for cutting the lateral metal wire;

[0007] A coiling cabin, fixed on the top of the splitting cabin, including a rotating motor and a lifting cylinder. The bottom rotating and telescopic end of the rotating motor and the lifting cylinder is provided with a hook plate frame for picking up the external metal wire of the block of plastic bottles and recycling it;

[0008] A crushing cabin, the upper part of which is communicated with the gap. Inside it, there is an opening and closing component for guiding the falling of the disassembled plastic bottles and supporting the plastic bottles to implement the unpacking process;

[0009] A pressing component, including pressing cabins arranged on both sides of the crushing cabin and laterally communicated with the crushing cabin. The pressing cabins are used for pressing the gathered metal wires;

[0010] When the wire of the bulk plastic bottle is not removed, the opening and closing assembly rotates to support the bottom of the bulk plastic bottle; when the wire of the bulk plastic bottle is gradually removed, the opening and closing assembly rotates to guide the plastic bottle to fall into the crushing chamber; after the disassembly of a single batch of bulk plastic bottles is completed, the opening and closing assembly guides the wire to fall into the pressing chamber.

[0011] Preferably, an embedded groove body is provided on each side opposite to the front-end feeding port and the rear-end splitting port. The bottom splitting group includes two sets of propulsion cylinder groups and a cutting knife group. The cutting knife group is fixed between the pushing ends of the two sets of propulsion cylinder groups, and the other ends of the two sets of propulsion cylinder groups are respectively fixed inside the embedded groove body.

[0012] Preferably, the two sets of propulsion cylinder groups act simultaneously but in opposite propulsion directions. A vertical cutting machine is provided inside the cutting knife group, and the moving stroke of the vertical cutting machine is greater than the length of the longest side of the bottom of the bulk plastic bottle.

[0013] Preferably, the lateral splitting group includes movable grooves provided on both inner sides of the rear-end splitting port. A walking arm is slidably connected inside each of the two movable grooves. A cutting motor is provided at one end of the walking arm, and two horizontal cutting knives are respectively connected to the bottoms of the two cutting motors;

[0014] A sinking groove is provided on the inner bottom surface of the rear-end splitting port. The bottom of the horizontal cutting knife is slidably connected inside the sinking groove, and the cutting surface of the horizontal cutting knife is close to the inner bottom surface of the rear-end splitting port.

[0015] Preferably, the coiling cabin includes an inverted hopper-shaped cabin connected between the top of the front-end feeding port and the rear-end splitting port. A polymerization cabin is communicated with the top of the inverted hopper-shaped cabin. A rotating motor is provided at the top of the polymerization cabin, and the lifting cylinder body is fixed on the bottom output shaft of the rotating motor.

[0016] Preferably, a plurality of telescopic rods are provided on the output shaft of the rotating motor and pass downward through the hook plate frame and are connected to a turntable. A plurality of cutting gaps are provided on the turntable. A plurality of hook knives are provided below the hook plate frame. The hook knives are movably extended and retracted in the cutting gaps and are in one-to-one correspondence and cooperation with the cutting gaps.

[0017] Preferably, a limiting pile is provided at the inner top end of the polymerization cabin, and a limiting groove is provided above the turntable. The limiting groove and the limiting pile are mutually cooperated for limiting. When the turntable and the limiting pile are limited and cannot move, the hook knife retracts inside the cutting gap to complete the cutting action.

[0018] Preferably, the opening and closing assembly includes two auxiliary motors disposed at the other end of the crushing chamber. The output ends of the auxiliary motors are connected to support rotating plates inside the crushing chamber. When the similar sides of the two support rotating plates rotate upward and in opposite directions by 45° in the horizontal state, the apex of the inclined surface is the same as the cutting apex of the cutting knife group.

[0019] When the similar sides of the two support rotating plates rotate downward and in opposite directions by 45° in the horizontal state, the apex of the inclined surface is parallel to the highest point of the lateral opening of the pressing chamber.

[0020] A crushing roller motor is provided inside the crushing chamber for crushing the unpacked plastic bottles, and a material box is provided at the bottom of the crushing chamber.

[0021] Preferably, the pressing assembly further includes pressing machines fixed to both sides of the coiling chamber. The bottom telescopic ends of the two pressing machines are connected with pressing blocks, and the pressing area of the pressing blocks fits the inner diameter of the plane of the pressing chamber.

[0022] A lateral opening groove is provided on the side of the pressing chamber. When the similar sides of the two support rotating plates rotate upward and in opposite directions by 45° in the horizontal state, the lowest point of the inclined surface is at the same height as the lowest point of the opening of the lateral opening groove; a bottom discharge port is provided laterally at the bottom of the pressing chamber.

[0023] A method for unpacking and crushing waste plastic bottles includes the following steps: S1. Material transportation: Push the plastic bottles pressed into blocks into the inside of the dividing chamber through a transmission device from the front end feed port. At this time, the opening and closing assembly rotates upward and in opposite directions by 45° in the horizontal state.

[0024] S2. Synchronous unpacking: Actuate the bottom dividing group and the lateral dividing group to synchronously divide the metal wire or metal mesh outside the block-shaped plastic bottle. After the division is completed, a bottom crack and a lateral crack are formed.

[0025] S3. Separate the metal wire mesh; Actuate the lifting cylinder to push downward so that the hook plate frame is close to the surface of the block-shaped plastic bottle, then rotate the rotating motor so that the hook plate frame hooks the metal mesh surface, drive the lifting cylinder to move upward, and then synchronously rotate the rotating motor to rotate so that the metal wire mesh gathers inside the inverted funnel-shaped chamber.

[0026] S4. Crushing and separation: During the process of the metal wire mesh being lifted upward, the similar sides of the opening and closing assembly rotate downward and in opposite directions to guide the plastic bottle to fall into the crushing chamber, and turn on the crushing roller motor to initially crush the plastic bottle.

[0027] S5. Press the metal wire mesh: After the decomposition of a single block of plastic bottles is completed, the sides of the opening and closing assembly close to each other rotate downward and in opposite directions, driving the lifting cylinder to the apex to cut the metal wire mesh until it falls onto the opening and closing assembly and is guided to the side opening of any one of the pressing assemblies. During this process, the pressing assembly continuously performs a downward pressing action to press the wire mesh into the interior of the pressing chamber.

[0028] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0029] Through the integrated unpacking action, the present invention performs a single overall cutting inside a single chamber, solving the problems of the cumbersome process of unpacking on the production line and the large material input. At the same time, it can improve the unpacking and crushing efficiency of the automatic device for block-shaped waste plastic bottles, and reduce various process problems such as the escape of plastic bottles and the stagnation of plastic bottle transportation;

[0030] In addition, during the unpacking process, the present invention pulls out, aggregates, and converges the steel wire mesh. At this time, the disassembled steel wire mesh is an integral whole and will not be mixed into the plastic bottle raw materials and enter the next process to affect the normal operation of the machine in the next process. Moreover, by synchronously pressing the overall steel mesh, the steel mesh can be conveniently recycled;

[0031] The cutting ends of this device are all hidden ends, which can be used in combination with manual assistance in a complex unpacking environment, solving the problem that workers cannot approach during the unpacking of conventional turning-over roller drums in case of accidents, and having extremely strong applicability. Description of the Drawings

[0032] Figure 1 is a schematic internal structure diagram of the splitting chamber of the present invention;

[0033] Figure 2 is a schematic structural diagram of the present invention (removing the two-side shells of the splitting chamber and the pressing assembly);

[0034] Figure 3 is a three-dimensional cross-sectional side view of the present invention.

[0035] In the figure: 1. Splitting chamber; 2. Coiling chamber; 3. Pressing assembly; 4. Crushing chamber; 5. Material box;

[0036] 101. Front-end feeding port; 102. Rear-end splitting port; 103. Bottom splitting group; 104. Lateral splitting group; 105. Opening and closing assembly;

[0037] 106. Propelling cylinder; 107. Cutting tool group; 108. Vertical cutting machine; 109. Embedded groove body; 110. Sinking groove; 111. Activity groove; 112. Walking arm; 113. Cutting motor; 114. Transverse cutting tool;

[0038] 201, inverted bucket-shaped cabin; 202, aggregation cabin; 203, rotating motor; 204, lifting cylinder; 205, hook plate frame; 206, hook knife; 207, cutting gap; 208, turntable; 209, limit slot; 210, limit pile;

[0039] 301, pressing cabin; 302, pressing block; 303, pressing machine; 304, lateral opening slot; 305, bottom discharge port;

[0040] 401, crushing roller motor; 402, supporting rotating plate; 403, auxiliary motor; DETAILED DESCRIPTION

[0041] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0042] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0044] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0045] Please refer to the attached Figures 1-3 , including a split cabin 1, including a front feed inlet 101 and a rear splitting opening 102, a gap is provided between the front feed inlet 101 and the rear splitting opening 102 for temporarily storing unpacked plastic bottles, the upper part of the gap is hollowed out for picking up the metal wire outside the block plastic bottle, the bottom of the gap is provided with a bottom splitting group 103 for cutting the metal wire, the lower part of the gap is hollowed out for falling and disassembling the block plastic bottle, and the inside of the split cabin 1 is provided with a lateral splitting group 104 for cutting the lateral metal wire;

[0046] The coiled cabin 2 is fixed to the top of the split cabin 1, and includes a rotating motor 203 and a lifting cylinder 204. The bottom rotating and telescopic ends of the rotating motor 203 and the lifting cylinder 204 are provided with a hook plate frame 205 for picking up the external metal wires of the block-shaped plastic bottles and recycling them;

[0047] The crushing chamber 4, the upper part of which is in communication with the gap, is provided with an opening and closing assembly 105 inside, which is used to guide the disassembled plastic bottles to fall and support the plastic bottles to implement the unpacking process;

[0048] The pressing assembly 3 comprises a pressing chamber 301 disposed on both sides of the crushing chamber 4 and laterally connected to the crushing chamber 4, wherein the pressing chamber 301 is used to press the assembled metal wires;

[0049] When the metal wire is not removed from the block plastic bottles, the opening and closing component 105 rotates to support the bottom of the block plastic bottles; when the metal wire is gradually removed from the block plastic bottles, the opening and closing component 105 rotates to guide the plastic bottles to fall into the crushing chamber 4; after a single batch of block plastic bottles is disassembled, the opening and closing component 105 guides the metal wire to fall into the pressing chamber.

[0050] In one embodiment of the present invention: Please refer to Figures 1-3 , an embedded slot 109 is provided on the opposite side of the front feeding port 101 and the rear dividing port 102, the bottom dividing group 103 includes two propulsion cylinder groups 106 and a cutting knife group 107, the cutting knife group 107 is fixed between the pushing ends of the two propulsion cylinder groups 106, and the other ends of the two propulsion cylinder groups 106 are respectively fixed inside the embedded slot 109;

[0051] The two propulsion cylinder groups 106 act simultaneously but in opposite directions. A vertical cutter 108 is provided inside the cutting knife group 107. The movable stroke of the vertical cutter 108 is greater than the longest side length of the bottom of the block-shaped plastic bottle.

[0052] When the rotary support height of the support rotating plate 402 (that is, when the opening and closing assembly 105 is in a horizontal state and the adjacent ends at both ends rotate 45° upward and in opposite directions), the cutting surface of the vertical cutting machine 108 is slightly higher than its support height. At this time, the support structure of the block-shaped plastic is the linear support at the top ends of the telescopic arms of the propulsion cylinder group 106 and the two support rotating plates 402 of the opening and closing assembly 105. When the two propulsion cylinder groups 106 move in opposite directions for a complete stroke, the steel mesh outside the block-shaped plastic bottle is separated in the middle. At this time, the top ends of the two support rotating plates 402 are always close to the separated mesh surface. Including when the same side of the support rotating plate 402 rotates downward, due to the weight of the bottle pressing down and the shrinkage of the steel mesh by the top coiling cabin 2, the surface of the support rotating plate 402 is always in contact with the steel mesh and the scattered bottle body. At this moment, the bottom of the block-shaped bottle body is released. As the steel mesh is gradually retracted, the bottle gradually spreads out and falls into the crushing chamber 4. When classifying by bottle type is required, the crushing roller motor 401 and the crushing roller can be not set, and the bottle naturally falls and transfers to the next classification raw material inlet.

[0053] In another embodiment of the present invention:

[0054] Please refer specifically to Figure 2 、 Figure 3 , the lateral cutting group 104 includes moving grooves 111 provided on both inner sides of the inner part of the rear end splitting opening 102. A walking arm 112 is slidably connected to the inside of each of the two moving grooves 111. A cutting motor 113 is provided at one end of the walking arm 112. Two transverse cutting knives 114 are respectively connected to the bottoms of the two cutting motors 113;

[0055] A sinking groove 110 is provided on the inner bottom surface of the inner part of the rear end splitting opening 102. The bottom of the transverse cutting knife 114 is slidably connected to the inside of the sinking groove 110, and the cutting surface of the transverse cutting knife 114 is close to the inner bottom surface of the rear end splitting opening 102;

[0056] The lateral cutting group can solve the problem that the top pulling cannot be completed due to incomplete cutting. Synchronously, a set of movable lateral cutting groups 104 can be symmetrically arranged about the central plane of the rotating motor 203 to perform splitting on both sides. In actual production, it depends on the situation. After splitting on one side, the device can already realize the convergence and guidance of the metal mesh and the process of the bottle falling. The other end of the rear end splitting opening 102 has a housing protection, which is not shown in the picture for convenient observation of the internal structure. Marginalizing and hiding the main cutting knife group 107 can timely perform manual intervention and assistance.

[0057] In another embodiment of the present invention: Please refer specifically to Figure 3, the coiled cabin 2 includes an inverted hopper-shaped cabin 201 connected between the top of the front end feeding port 101 and the rear end dividing port 102. A polymerization cabin 202 is communicated and arranged at the top of the inverted hopper-shaped cabin 201. A rotating motor 203 is arranged at the top of the polymerization cabin 202. The lifting cylinder body 204 is fixed on the bottom output end shaft of the rotating motor 203;

[0058] A plurality of telescopic rods are arranged on the output end shaft of the rotating motor 203 and pass through the hook plate frame 205 downward and are connected with a turntable 208. A plurality of cutting gaps 207 are arranged on the turntable 208. A plurality of hook knives 206 are arranged below the hook plate frame 205. The hook knives 206 are movably extended and contracted in the cutting gaps 207 and are in one-to-one correspondence and cooperation with the cutting gaps 207. A limiting pile 210 is arranged at the inner top end of the polymerization cabin 202. A limiting groove 209 is arranged above the turntable 208. The limiting groove 209 and the limiting pile 210 are mutually cooperated for limiting. When the turntable 208 and the limiting pile 210 are limited and cannot move, the hook knives 206 contract inside the cutting gaps 207 to complete the cutting action. When the lifting cylinder body 204 drives the hook plate frame 205 to move upward, the rotating motor 203 rotates the turntable 208 synchronously. The rotation of the turntable 208 drives the lifting cylinder body 204 to rotate synchronously. The lifting cylinder body 204 always keeps lifting until the limiting groove 209 cooperates with the limiting pile 210. When the metal mesh needs to be released, the hook plate frame 205 is lifted again, so that the hook knives 206 take the steel wire and retract into the cutting gaps 207. After the cutting gaps 207 cut off the metal wire, the metal mesh falls and slides into the pressing assembly 3 for collection.

[0059] In another embodiment of the present invention: Please refer emphatically to Figure 1 , the opening and closing assembly 105 includes two auxiliary motors 403 arranged at the other end of the crushing cabin 4. The output ends of the auxiliary motors 403 are connected with a supporting rotating plate 402 inside the crushing cabin 4. When the two supporting rotating plates 402 rotate 45° upward and in opposite directions on the adjacent sides in the horizontal state, the vertex of the inclined surface is the same as the cutting vertex of the cutting knife group 107;

[0060] When the two supporting rotating plates 402 rotate 45° downward and in opposite directions on the adjacent sides in the horizontal state, the vertex of the inclined surface is parallel to the highest point of the lateral opening of the pressing cabin body 301;

[0061] A crushing roller motor 401 is arranged inside the crushing cabin 4 for crushing the unpacked plastic bottles. A material box 5 is arranged at the bottom of the crushing cabin 4;

[0062] The pressing assembly 3 further includes pressing machines 303 fixed to both sides of the coiling cabin 2. The bottom telescopic ends of the two pressing machines 303 are connected with pressing blocks 302, and the pressing area of the pressing blocks 302 matches the inner diameter of the plane of the pressing cabin 301;

[0063] A lateral opening groove 304 is provided on the side of the pressing cabin 301. When the two support rotating plates 402 rotate 45° upward and in opposite directions in the horizontal state, the lowest point of the inclined surface is at the same height as the lowest point of the opening of the lateral opening groove 304; A bottom discharge port 305 is provided laterally at the bottom of the pressing cabin 301.

[0064] Please refer to Figure 2 , Figure 3 , A method for unpacking and crushing waste plastic bottles includes the following steps: S1. Material transportation: Push the plastic bottles pressed into blocks into the dividing cabin 1 from the front end feed port 101 through the transmission device. At this time, the opening and closing assembly 105 is in a state of rotating 45° upward and in opposite directions in the horizontal state;

[0065] S2. Synchronous unpacking: Actuate the bottom dividing group 103 and the lateral dividing group 104 to synchronously divide the metal wire or metal mesh outside the block plastic bottle. After the division is completed, a bottom crack and a lateral crack are formed;

[0066] S3. Separate the metal wire mesh; Actuate the lifting cylinder 204 to push downward so that the hook plate frame 205 is close to the surface of the block plastic bottle. Then rotate the rotating motor 203 so that the hook plate frame 205 hooks the metal mesh surface, drive the lifting cylinder 204 to move upward, and then synchronously rotate the rotating motor 203 to rotate so that the metal wire mesh gathers inside the inverted funnel-shaped cabin 201;

[0067] S4. Crushing and separation: During the process of the metal wire mesh being lifted upward, the adjacent sides of the opening and closing assembly 105 rotate downward and in opposite directions to each other, guiding the plastic bottle to fall into the crushing cabin 4, and turn on the crushing roller motor 401 to initially crush the plastic bottle;

[0068] S5. Press the metal wire mesh: After a single block plastic bottle is decomposed, actuate the adjacent sides of the opening and closing assembly 105 to rotate downward and in opposite directions to each other, drive the lifting cylinder 204 to the apex to cut off the metal wire mesh until it falls onto the opening and closing assembly 105 and is guided to the side opening of any one of the pressing assemblies 3. During this process, the pressing assembly 3 continuously performs a downward pressing action to press the wire mesh into the pressing cabin 301.

[0069] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0070] The above content is only an example and explanation of the structure of the present invention. Those skilled in the art of this technology can make various modifications or supplements to the described specific embodiments or use similar methods for substitution. As long as it does not deviate from the structure of the invention or exceed the scope defined by this claim book, it should belong to the protection scope of the present invention.

Claims

1. A device for unpacking and crushing discarded plastic bottles, characterized by: include The partitioning chamber (1) comprises a front feeding port (101) and a rear partitioning port (102), wherein a gap is provided between the front feeding port (101) and the rear partitioning port (102) for temporarily storing unpacked plastic bottles, the upper portion of the gap is hollowed out for picking up metal wires outside the block-shaped plastic bottles, the bottom of the gap is provided with a bottom partitioning group (103) for cutting the metal wires, the lower portion of the gap is hollowed out for dropping and disassembling the block-shaped plastic bottles, and the interior of the partitioning chamber (1) is provided with a lateral partitioning group (104) for cutting lateral metal wires; The winding cabin (2) is fixed to the top of the split cabin (1), and comprises a rotating motor (203) and a lifting cylinder (204). The bottom rotating and telescopic ends of the rotating motor (203) and the lifting cylinder (204) are provided with a hook plate frame (205) for picking up the external metal wires of the block-shaped plastic bottles and recycling them; A crushing chamber (4), the upper part of which is in communication with the gap, is provided with an opening and closing assembly (105) inside thereof, which is used to guide the disassembled plastic bottles to fall and to support the plastic bottles to implement the unpacking process; A pressing assembly (3), comprising pressing chamber bodies (301) arranged on both sides of the crushing chamber (4) and laterally connected to the crushing chamber (4), wherein the pressing chamber bodies (301) are used to press the assembled metal wires; When the metal wires are not removed from the block-shaped plastic bottles, the opening and closing assembly (105) rotates to support the bottom of the block-shaped plastic bottles; when the metal wires are gradually removed from the block-shaped plastic bottles, the opening and closing assembly (105) rotates to guide the plastic bottles to fall into the crushing chamber (4); after a single batch of block-shaped plastic bottles is disassembled, the opening and closing assembly (105) guides the metal wires to fall into the pressing chamber.

2. The device for disassembling and crushing discarded plastic bottles according to claim 1, characterized in that: An embedded groove body (109) is provided on the opposite side of the front end feed port (101) and the rear end dividing port (102); the bottom dividing group (103) includes two propulsion cylinder groups (106) and a cutting knife group (107); the cutting knife group (107) is fixed between the pushing ends of the two propulsion cylinder groups (106); and the other ends of the two propulsion cylinder groups (106) are respectively fixed inside the embedded groove body (109).

3. The device for disassembling and crushing discarded plastic bottles according to claim 2, characterized in that: The two propulsion cylinder groups (106) act simultaneously but in opposite propulsion directions. A vertical cutter (108) is provided inside the cutting knife group (107). The movable stroke of the vertical cutter (108) is greater than the longest side length of the bottom of the block-shaped plastic bottle.

4. The device for disassembling and crushing discarded plastic bottles according to claim 1, characterized in that: The lateral cutting group (104) comprises movable grooves (111) arranged on both sides of the rear end cutting opening (102), the inside of the two movable grooves (111) are both slidably connected to a walking arm (112), one end of the walking arm (112) is provided with a cutting motor (113), and the bottoms of the two cutting motors (113) are respectively connected to two transverse cutting knives (114); The inner bottom surface of the rear end dividing opening (102) is provided with a sinking groove (110), the bottom of the transverse cutting knife (114) is slidably connected to the inside of the sinking groove (110), and the cutting surface of the transverse cutting knife (114) is close to the inner bottom surface of the rear end dividing opening (102).

5. The device for disassembling and crushing discarded plastic bottles according to claim 1, characterized in that: The coiled cabin body (2) comprises an inverted bucket-shaped cabin body (201) connected between the top of the front end feed port (101) and the rear end dividing port (102); the top of the inverted bucket-shaped cabin body (201) is connected to a polymerization cabin (202); the top of the polymerization cabin (202) is provided with a rotating motor (203); and the lifting cylinder body (204) is fixed to the bottom output end shaft of the rotating motor (203).

6. The device for disassembling and crushing discarded plastic bottles according to claim 5, characterized in that: A plurality of telescopic rods are arranged on the output end shaft of the rotating motor (203) and pass downward through the hook plate frame (205) and are connected to a rotating disk (208). A plurality of cutting gaps (207) are arranged on the rotating disk (208). A plurality of hook knives (206) are arranged below the hook plate frame (205). The hook knives (206) are located in the cutting gaps (207) and can be flexibly extended and retracted and are matched with the cutting gaps (207) in a one-to-one correspondence.

7. The device for disassembling and crushing discarded plastic bottles according to claim 6, characterized in that: A limiting pile (210) is provided at the inner top of the aggregation cabin (202), and a limiting groove (209) is provided above the rotating disk (208). The limiting groove (209) and the limiting pile (210) cooperate with each other to limit. When the rotating disk (208) and the limiting pile (210) are limited and cannot move, the hook knife (206) shrinks inside the cutting gap (207) to complete the cutting action.

8. The device for disassembling and crushing discarded plastic bottles according to claim 1, characterized in that: The opening and closing assembly (105) comprises two auxiliary motors (403) arranged at the other end of the crushing chamber (4); the output end of the auxiliary motor (403) is located inside the crushing chamber (4) and is connected to a supporting rotating plate (402); when the two supporting rotating plates (402) are in a horizontal state and the adjacent side is turned upward and in opposite directions by 45 degrees, the vertex of the inclined surface is the same as the cutting vertex of the cutting knife group (107); When the adjacent sides of the two support rotating plates (402) are turned downward and in opposite directions by 45° in a horizontal state, the apex of the inclined surface is highly parallel to the highest point of the lateral opening of the compression cabin (301); A crushing roller motor (401) is provided inside the crushing chamber (4) for crushing the unpacked plastic bottles, and a material box (5) is provided at the bottom of the crushing chamber (4).

9. The device for disassembling and crushing discarded plastic bottles according to claim 8, characterized in that: The pressing assembly (3) further comprises pressing machines (303) fixed on both sides of the coiled cabin (2), the bottom telescopic ends of the two pressing machines (303) are connected with pressing blocks (302), and the pressing area of ​​the pressing blocks (302) matches the plane inner diameter of the pressing cabin (301); A lateral opening groove (304) is provided on the side of the compression cabin (301); when the two support rotating plates (402) are rotated 45° in opposite directions with the adjacent side facing upward in a horizontal state, the lowest point of the inclined surface is at the same height as the lowest point of the opening of the lateral opening groove (304); and a bottom discharge port (305) is provided on the side of the bottom of the compression cabin (301).

10. A method for unpacking and crushing discarded plastic bottles, according to a device for unpacking and crushing discarded plastic bottles according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, material conveying: the plastic bottles pressed into blocks are pushed into the interior of the partition cabin (1) from the front feed port (101) through the transmission device, and the opening and closing assembly (105) is in a horizontal state and rotated 45° upward and in the opposite direction; S2, synchronous unpacking: the bottom segmentation group (103) and the side segmentation group (104) synchronously segment the metal wire or metal mesh outside the block-shaped plastic bottle, and after segmentation, a bottom split and a side split are formed; S3, separating the metal wire mesh; the lifting cylinder (204) is moved downward so that the hook plate frame (205) is pressed against the surface of the block-shaped plastic bottle, and then the rotary motor (203) is rotated so that the hook plate frame (205) hooks the metal mesh surface, driving the lifting cylinder (204) to move upward, and then the rotary motor (203) is rotated synchronously so that the metal wire mesh is gathered inside the inverted bucket-shaped cabin (201); S4, crushing and separation: when the metal wire mesh is lifted and moved upward, the opening and closing components (105) rotate downward and in opposite directions to guide the plastic bottles to fall into the crushing chamber (4), and the crushing roller motor (401) is turned on to perform preliminary crushing on the plastic bottles; S5. Pressing the metal wire mesh: After the single block of plastic bottle is decomposed, the opening and closing component (105) is moved to rotate on one side downward and in opposite directions, driving the lifting cylinder (204) to the top to cut the metal wire mesh until it falls to the opening and closing component (105) and is guided to the side opening of the pressing component (3) on any side. During this process, the pressing component (3) continuously presses down to press the wire mesh into the inside of the pressing cabin (301).

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