A PET plastic bottle crushing and processing device

Abstract

The present invention discloses a PET plastic bottle crushing and processing device, which specifically relates to the field of crushing and processing technology, including a support frame, a protective shell is fixedly connected to the inner cavity of the support frame, a crushing group is arranged in the inner cavity of the protective shell, a motor is fixedly connected to the middle part of the front end of the protective shell, a hydraulic cylinder is fixedly connected to the upper part of the left end of the protective shell, a feeding group is fixedly connected to the left part of the hydraulic cylinder, and a support group is fixedly connected to the lower part of the hydraulic cylinder. The PET plastic bottle crushing and processing device described in the present invention squeezes the plastic bottle through a nail head pressure plate, a nail hole pressure plate and an elastic rod to puncture its surface, and the plastic bottle will be pushed out by the pulling group after squeezing to achieve the purpose of automatic unloading, and the purpose of compressing the plastic bottles in batches is achieved by the nail head pressure plate in conjunction with the tooth plate, with the assistance of the J-shaped frame and the toothed disc assembly, and the motor and the transmission wheel are combined with the belt to make the unqualified fragments pass through the material conveying device to enter the crushing device again and be crushed again.

Description

Technical Field

[0001] The invention relates to the technical field of crushing and processing, and in particular to a PET plastic bottle crushing and processing device. Background Art

[0002] Plastic bottles are mainly made of materials such as polyethylene or polypropylene and added with a variety of organic solvents. Plastic bottles are generally made of polyester, polyethylene, and polypropylene as raw materials. After adding corresponding organic solvents, they are heated at high temperatures and blown, extruded, or injection molded through plastic molds. They are mainly used for beverages, food, pickles, honey, dried fruits, edible oils, pesticides, and other liquid or solid disposable plastic packaging containers. Plastic bottles are not easy to break, low cost, high transparency, and food-grade raw materials. Therefore, waste plastic bottles need to be crushed and recycled.

[0003] Chinese patent document CN219427217U discloses a crushing device for recycling plastic bottles, including a crushing box, a first motor, a material guiding mechanism, a detection mechanism, a controller, a support foot, a feed port and a crushing roller. By setting the material guiding mechanism, the second motor drives the cam to rotate, the cam moves up and down in the slide groove on the slider, and drives the slider to move left and right, the slider drives the moving plate to slide left and right on the fixed plate, and repeats the above steps to perform reciprocating motion, so as to prevent the crushing device from being blocked due to excessive accumulation, thereby affecting the crushing efficiency; by setting the detection mechanism, the crushed plastic bottles enter the induction box through the inclined plate, first pass through the lamp, the lamp shines on the crushed plastic bottles, and then pass through the sensor and the comparison plate. Under the action of the light source, according to the intensity of the light and the color change, the controller generates an output signal to drive the spray valve to blow out the crushed plastic bottles of different colors to the left end discharge pipe, thereby reducing the cost of manual sorting and improving the efficiency; however, the following defects still exist in the implementation process:

[0004] During the implementation of the above patent document, although it can prevent the device from being blocked and blowing out broken plastic bottles of different colors, thereby reducing the cost of manual sorting, the above device has the problems of low crushing efficiency and insufficient crushing, which in turn affects the effectiveness of the work. Summary of the invention

[0005] The main purpose of the present invention is to provide a PET plastic bottle crushing processing device, which can effectively solve the problems of low crushing efficiency and insufficient crushing.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A PET plastic bottle crushing and processing device comprises a support frame, a protective shell is fixedly connected to the inner cavity of the support frame, a crushing group is arranged in the inner cavity of the protective shell, a motor is fixedly connected to the middle part of the front end of the protective shell, a hydraulic cylinder is fixedly connected to the upper left end of the protective shell, a feeding group is fixedly connected to the left part of the hydraulic cylinder, and a support group is fixedly connected to the lower part of the hydraulic cylinder.

[0008] Preferably, the compression mechanism includes two J-shaped frames, the inner cavities of the two J-shaped frames are rotatably connected to a gear disk assembly, the lower ends of the two J-shaped frames are commonly fixedly connected to a shell group, a compression group is provided in the middle of the shell group, and a shielding group is commonly provided on the right side of the shell group and the right side of the compression group.

[0009] Preferably, the shell group includes an outer shell fixedly connected to the upper left end of the protective shell, a circular hole is opened in the middle of the upper end of the outer shell, a square hole groove is opened symmetrically front and back in the middle of the upper end of the outer shell, a limiting groove 1 is opened on the right part of the inner cavity of the outer shell, a clamping plate is fixedly connected symmetrically front and back to the inner cavity of the limiting groove 1, a limiting groove 2 is opened on the bottom wall of the inner cavity of the outer shell, and the lower ends of the two J-shaped frames are fixedly connected to the middle of the upper end of the outer shell.

[0010] Preferably, the compression group includes a nail head pressure plate, the output end of the hydraulic cylinder passes through the inner cavity of the circular hole and is fixedly connected to the upper end of the nail head pressure plate in the vertical direction, the middle part of the upper end of the nail head pressure plate is symmetrically fixedly connected with a tooth plate, the four corners of the lower end of the nail head pressure plate are fixedly connected with elastic rods, the lower ends of the four elastic rods are commonly fixedly connected to the nail hole pressure plate, the front right part and the rear right part of the nail head pressure plate are commonly fixedly connected with a pulling group, the outer surface of the pulling group is slidably connected to the second inner cavity of the limiting groove, the upper parts of the outer surfaces of the two tooth plates respectively pass through the inner cavity of the square hole groove, and are respectively combined with the outer surfaces of the two toothed disc assemblies.

[0011] Preferably, the material pulling group includes a rotating pull rod fixedly connected to the right front end and the right rear end of the nail head pressure plate, the two rotating pull rods are fixedly connected to a rod sleeve on the opposite surfaces away from the nail head pressure plate, the rod sleeve inner cavity is rotatably connected to a gear rod, the front and rear ends of the gear rod are fixedly connected to rotating blocks, the upper left ends of the two rotating blocks are fixedly connected to a spring 1, and the other ends of the two springs 1 are fixedly connected to the left wall of the rod sleeve inner cavity.

[0012] Preferably, the shielding group includes a shielding plate that is slidably connected to an inner cavity of a limiting groove, and positioning grooves are symmetrically opened on the upper end of the shielding plate. The inner cavities of the two positioning grooves are both slidably connected with clamps, and the outer surfaces of the two clamps are jointly slidably connected with a connecting plate, and the left ends of the two clamps are fixedly connected with spring 2, and the left end of the connecting plate is fixedly connected to the right end of the nail head pressure plate.

[0013] Preferably, the feed group includes a feed hopper fixedly connected to the right end of the outer shell, a sliding groove is opened in the middle of the inner cavity of the feed hopper, a baffle plate is slidably connected to the inner cavity of the sliding groove, and the lower right part of the outer surface of the baffle plate is meshed with the outer surfaces of the two toothed disc assemblies.

[0014] Preferably, the support group includes a collection box fixedly connected to the lower end of the outer shell, the lower end of the collection box is fixedly connected to a support hole column, and the lower part of the outer surface of the support hole column is provided with a liquid outlet pipe.

[0015] Preferably, the crushing group includes a crushing device fixedly connected to the upper part of the inner cavity of the protective shell, the lower end of the crushing device is fixedly connected to a screening device, the lower right end of the screening device is fixedly connected to a material transmission device, the left front end of the crushing device, the front end of the screening device and the lower front end of the material transmission device are all provided with transmission wheels, and the transmission wheels are connected by belts, the rear end of the material transmission device is fixedly connected to the rear wall of the inner cavity of the protective shell, and the right front end of the crushing device is fixedly connected to the output end of the motor.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention comprises a shell group, a compression group and a shielding group. Through the coordinated use of a nail head pressing plate, a nail hole pressing plate and an elastic rod, the plastic bottle can be squeezed and its surface can be punctured at the same time. The plastic bottle will be pushed out by the material pulling group after being squeezed, so as to achieve the purpose of automatic unloading. The nail head pressing plate will squeeze the plastic bottle into a rectangular block, which is convenient for the subsequent squeezing work of the plastic bottle and can also release the excess water in the plastic bottle. When the nail head pressing plate moves downward to squeeze the plastic bottle, the shielding plate therein will block the plastic bottle in the inner cavity of the outer shell so that it cannot fall, so that the squeezing of the plastic bottle is more sufficient and the plastic bottle will not be affected from being pushed out of the outer shell by the material pulling group. When the nail head pressing plate moves upward, under the elastic force of the elastic rod, the nail hole pressing plate is pushed so that the PET plastic bottle stuck on the needle head of the nail head pressing plate is cleared and falls off by the nail hole pressing plate. There is no need to stop the machine for manual cleaning, so the working effect is improved.

[0018] 2. Through the cooperation of the nail head pressure plate with the tooth plate, with the assistance of the J-shaped frame and the toothed disc assembly, the baffle plate moves with the movement of the nail head pressure plate. When the nail head pressure plate moves downward, the baffle plate moves in the inner cavity of the sliding groove, so that the baffle plate blocks the feed hopper. When the nail head pressure plate moves upward, the inner cavity of the feed hopper is opened, thereby achieving the purpose of compressing plastic bottles in batches.

[0019] 3. Through the motor and the transmission wheel in combination with the belt, the unqualified plastic bottle fragments in the screening device can enter the crushing device again through the material conveying device for re-crushing, until they are qualified and discharged into the inner cavity of the protective shell through the screening device, so as to achieve the purpose of fully crushing the plastic bottles and improve the crushing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the compression mechanism structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the housing group of the present invention;

[0023] Figure 4 It is a schematic diagram of the compression group structure of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the material pulling group of the present invention;

[0025] Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0026] Figure 7 It is a schematic diagram of the structure of the shielding group of the present invention;

[0027] Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in the middle;

[0028] Fig. 9 It is a schematic diagram of the structure of the feed group of the present invention;

[0029] Fig.10 It is a schematic diagram of the operation state of the feed group and the compression mechanism of the present invention;

[0030] Fig.11 For the present invention Fig.10 The enlarged structural diagram at C in the middle;

[0031] Fig.12 It is a schematic diagram of the support group structure of the present invention;

[0032] Fig.13 It is a schematic diagram of the structure of the pulverizing group of the present invention.

[0033] In the figure: 1, support frame; 2, protective shell; 3, crushing group; 31, crushing device; 32, transmission wheel; 33, screening device; 34, material transmission device; 4, hydraulic cylinder; 5, feeding group; 51, feeding hopper; 52, material blocking plate; 53, sliding groove; 6, compression mechanism; 61, J-shaped frame; 62, toothed disc assembly; 63, shell group; 631, outer shell; 632, round hole; 633, square hole slot; 634, limit slot 1; 635, clamping plate; 636, limit slot 2; 64, compression mechanism Shrinkage group; 641, tooth plate; 642, nail head pressure plate; 643, elastic rod; 644, nail hole pressure plate; 645, pulling group; 6451, rod sleeve; 6452, tooth rod; 6453, rotating block; 6454, spring one; 6455, rotating pull rod; 65, shielding group; 651, shielding plate; 652, positioning groove; 653, clamping head; 654, spring two; 655, connecting plate; 7, supporting group; 71, collecting box; 72, supporting hole column; 73, liquid outlet pipe; 8, motor. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] Embodiment 1

[0036] like Figure 1 As shown, a PET plastic bottle crushing and processing device includes a support frame 1, a protective shell 2 is fixedly connected to the inner cavity of the support frame 1, a crushing group 3 is provided in the inner cavity of the protective shell 2, a motor 8 is fixedly connected to the middle part of the front end of the protective shell 2, a hydraulic cylinder 4 is fixedly connected to the upper left end of the protective shell 2, a feeding group 5 is fixedly connected to the left part of the hydraulic cylinder 4, and a support group 7 is fixedly connected to the lower part of the hydraulic cylinder 4.

[0037] It should be noted that the specific installation method of the hydraulic cylinder 4 and the motor 8, the circuit connection method and the control method in the present invention are all conventional designs and are conventional design means of designers.

[0038] The motor 8 mentioned above is installed with the protective shell 2, and is installed with the crushing group 3 through the output end of the motor 8, so as to drive the crushing group 3 to work. The support group 7 is installed to collect liquid for the compression mechanism 6 and also has the function of auxiliary support, thereby increasing the overall stability of the device.

[0039] like Figure 2As shown, the PET plastic bottles are compressed and driven into the crushing group 3 for crushing. The compression mechanism 6 includes two J-shaped frames 61, which are symmetrically arranged front and back. The inner cavities of the two J-shaped frames 61 are rotatably connected with toothed disc assemblies 62. A through hole is provided in the middle of the opposite surfaces of the two J-shaped frames 61. The two toothed disc assemblies 62 can rotate in the inner cavities of the through holes respectively. The lower ends of the two J-shaped frames 61 are commonly fixedly connected to a shell group 63. A compression group 64 is provided in the middle of the shell group 63. The shell group 63 is slidably connected to the compression group 64. The right part of the shell group 63 and the right part of the compression group 64 are commonly provided with a shielding group 65. The shielding group 65 is slidably connected to the shell group 63 and fixedly connected to the compression group 64.

[0040] It should be noted that the toothed disc assembly 62 is composed of two toothed discs and a rotating rod. The compression group 64 moves up and down in the shell group 63 to complete the compression of the PET plastic bottle and puncture it at the same time, which is convenient for compressing the PET plastic bottle and releasing the liquid in the bottle. At the same time, through the movement of the compression group 64, the two will drive the toothed disc assembly 62 to rotate and drive the shielding group 65 to move up and down. Through the shielding group 65, the uncompressed PET plastic bottles are prevented from entering the crushing group 3 during the compression of the PET plastic bottles by the compression group 64.

[0041] like Figure 3 As shown, in order to ensure the normal operation of the PET plastic bottle compression process, the shell group 63 includes an outer shell 631 fixedly connected to the upper left end of the protective shell 2, a hole is provided on the bottom wall of the inner cavity of the outer shell 631, so that the liquid in the punctured bottle flows into the support group 7 through the hole, a round hole 632 is provided in the middle of the upper end of the outer shell 631, and a square hole groove 633 is symmetrically provided in the middle of the upper end of the outer shell 631. A limiting groove 1 634 is provided on the right part of the inner cavity of the outer shell 631, and a clamping plate 635 is fixedly connected to the inner cavity of the limiting groove 1 634 symmetrically in front and back. A limiting groove 2 636 is provided on the bottom wall of the inner cavity of the outer shell 631, and the lower ends of the two J-shaped frames 61 are fixedly connected to the middle of the upper end of the outer shell 631.

[0042] In detail, the shielding group 65 is slidably installed through the limit groove 1 634, and the clamping plate 635 acts on the inside of the shielding group 65. The compression group 64 is slidably installed through the circular hole 632, the square hole groove 633 and the limit groove 2 636 as well as the inner cavity of the outer shell 631, so that the compression group 64 can move while driving the gear disk assembly 62 and the shielding group 65 to operate.

[0043] like Figure 4As shown, the compression group 64 includes a nail head pressure plate 642, the output end of the hydraulic cylinder 4 passes through the inner cavity of the circular hole 632 and is fixedly connected to the upper end of the nail head pressure plate 642 in the vertical direction, the middle part of the upper end of the nail head pressure plate 642 is symmetrically fixedly connected with a tooth plate 641, the four corners of the lower end of the nail head pressure plate 642 are fixedly connected with elastic rods 643, and the lower ends of the four elastic rods 643 are commonly fixedly connected with a nail hole pressure plate 644, the nail hole pressure plate 644 is provided with holes adapted to a number of nail heads installed at the lower end of the nail head pressure plate 642, the front right part and the rear right part of the nail head pressure plate 642 are commonly fixedly connected with a pulling group 645, the outer surface of the pulling group 645 is slidably connected with the inner cavity of the second limiting groove 636, the upper parts of the outer surfaces of the two tooth plates 641 respectively pass through the inner cavity of the square hole groove 633, and are respectively combined with the outer surfaces of the two toothed disc assemblies 62, and the tooth plates 641 are meshed and connected with the toothed disc assemblies 62.

[0044] In the initial state, the nail head pressing plate 642 compresses the elastic rod 643, so that the elastic rod 643 drives the nail hole pressing plate 644 to press on the bottom wall of the inner cavity of the outer shell 631, and the lower part of the nail head pressing plate 642 penetrates the nail hole pressing plate 644, which acts on the PET plastic bottle and punctures the PET plastic bottle. The hydraulic cylinder 4 acts on the nail head pressing plate 642, driving the nail head pressing plate 642 to move up and down in cooperation with the outer shell 631 and the circular hole 632. When the nail head pressing plate 642 moves upward, At the same time, the two tooth plates 641 are driven to move in the inner cavities of the two square hole grooves 633 respectively, and the two toothed disc assemblies 62 are driven to rotate, and the shielding group 65 is driven to slide up and down in the inner cavity of the limiting groove 1 634, and the pulling group 645 is driven to move left and right in the inner cavity of the limiting groove 2 636 through the nail head pressure plate 642. Through the movement of the pulling group 645, the PET plastic bottle compressed by the nail head pressure plate 642 and the nail hole pressure plate 644 enters the crushing group 3 for the next step of operation.

[0045] like Figure 5 and Figure 6 As shown, the compressed PET plastic bottles are driven into the crushing group 3, and the pulling group 645 includes a rotating pull rod 6455 fixedly connected to the front right part and the rear right part of the nail head pressure plate 642, and the two rotating pull rods 6455 are fixedly connected to the rod sleeve 6451 on the opposite surface away from the nail head pressure plate 642, and the inner cavity of the rod sleeve 6451 is rotatably connected to the gear rod 6452, and the front and rear ends of the gear rod 6452 are fixedly connected to the rotating blocks 6453, and the upper left ends of the two rotating blocks 6453 are fixedly connected to the spring 1 6454, and the other ends of the two spring 1 6454 are fixedly connected to the left wall of the inner cavity of the rod sleeve 6451.

[0046] In detail, the nail head pressure plate 642 is connected to the rotating pull rod 6455, and through the movement of the nail head pressure plate 642, the two rotating pull rods 6455 drive the rod sleeve 6451 to slide in the inner cavity of the second limiting groove 636, and when moving to the right, it drives the gear rod 6452 to pull the PET plastic bottle on the bottom wall of the inner cavity of the outer shell 631, so that the PET plastic bottle enters the crushing group 3. During the movement to the left, if the gear rod 6452 is blocked by the next batch of PET plastic bottles entering, the gear rod 6452 will rotate in the inner cavity of the rod sleeve 6451, so that the rotating block 6453 drives the spring 1 6454 to rotate, and the gear rod 6452 rotates to the inner cavity of the second limiting groove 636 to avoid the PET plastic bottle, and then through the contraction force of the spring 1 6454, the gear rod 6452 is driven to rotate to the initial position through the rotating block 6453.

[0047] Further explanation, such as Figure 7 and 8 As shown, in the process of compressing PET plastic bottles, the uncompressed PET plastic bottles are prevented from entering the crushing group 3. The shielding group 65 includes a shielding plate 651 slidably connected to the inner cavity of the limiting groove 1 634, and the upper end of the shielding plate 651 is symmetrically provided with positioning grooves 652. The inner cavities of the two positioning grooves 652 are both slidably connected with clamps 653. The outer surfaces of the two clamps 653 are slidably connected with a connecting plate 655. The left ends of the two clamps 653 are fixedly connected with springs 2 654, and the left end of the connecting plate 655 is fixedly connected to the right end of the nail head pressure plate 642.

[0048] It should be noted that the connecting plate 655 is composed of a long plate and two sleeves adapted to the clamping head 653. In the initial state, the shielding plate 651 is in a closed state in the inner cavity of the limiting groove 634 to block the PET plastic bottle. When the nail head pressing plate 642 moves upward, the connecting plate 655 cooperates with the clamping head 653, so that the clamping head 653 drives the shielding plate 651 to move upward in the inner cavity of the positioning groove 652, so that the compressed PET plastic bottle can enter the crushing group 3 under the action of the pulling group 645. When it moves to the appropriate position, the clamping plate 635 passes through the inner cavity of the positioning groove 652. The arc surface of the clamp head 653 is squeezed, so that the clamp head 653 compresses the spring 2 654 and enters the inner cavity of the connecting plate 655. The shielding plate 651 slides downward in the inner cavity of the limiting groove 1 634 under the action of its own gravity and returns to its initial position. When the nail head pressure plate 642 moves downward, the clamp head 653 is driven by the connecting plate 655 to slide downward to a suitable position close to the left end surface of the shielding plate 651. Under the elastic force of the spring 2 654, the clamp head 653 is pushed out of the inner cavity of the connecting plate 655 and enters the inner cavity of the positioning groove 652. When the nail head pressure plate 642 moves upward again, it drives the shielding plate 651 to move again.

[0049] like Fig. 9As shown, the feed group 5 includes a feed hopper 51 fixedly connected to the right end of the outer shell 631, a sliding groove 53 is opened in the middle of the inner cavity of the feed hopper 51, and a baffle plate 52 is slidably connected to the inner cavity of the sliding groove 53. The lower right part of the outer surface of the baffle plate 52 is meshed and connected with the outer surfaces of the two toothed disc assemblies 62.

[0050] It should be noted that the baffle plate 52 is composed of a long plate and a rack. In the initial state, the baffle plate 52 makes the feed hopper 51 in a closed state in the inner cavity of the sliding groove 53. When the nail head pressure plate 642 moves upward, it will drive the two tooth plates 641 to move upward in the inner cavity of the square hole groove 633 respectively, and at the same time drive the two toothed disc assemblies 62 to rotate in the inner cavity of the J-shaped frame 61. Through the rotation of the toothed disc assembly 62, the baffle plate 52 is driven to move right in the inner cavity of the sliding groove 53. The baffle plate 52 no longer blocks the inner cavity of the feed hopper 51, and the PET plastic bottles will fall from the upper end of the baffle plate 52 and enter the inner cavity of the outer shell 631 through the inner cavity of the feed hopper 51. When the nail head pressure plate 642 moves downward, it drives the two toothed plates 641 to move downward together, causing the toothed disc assembly 62 to rotate in the opposite direction, thereby driving the baffle plate 52 to move left in the inner cavity of the sliding groove 53 and restore the closed state.

[0051] Embodiment 2

[0052] like Fig.12 and Fig.13 As shown, this embodiment completes the collection and discharge of liquid in the bottle and further crushing of the PET plastic bottle on the basis of the first embodiment. The support group 7 includes a collection box 71 fixedly connected to the lower end of the outer shell 631, and a support hole column 72 is fixedly connected to the lower end of the collection box 71. A liquid outlet pipe 73 is provided on the lower part of the outer surface of the support hole column 72.

[0053] After the PET plastic bottle is compressed and punctured by the nail head pressure plate 642 , the liquid flows into the inner cavity of the collection box 71 through the outer shell 631 , then enters the inner cavity of the support hole column 72 through the collection box 71 , and finally flows out through the liquid outlet pipe 73 .

[0054] The crushing group 3 includes a crushing device 31 fixedly connected to the upper part of the inner cavity of the protective shell 2, a screening device 33 fixedly connected to the lower end of the crushing device 31, a feeding device 34 fixedly connected to the lower right end of the screening device 33, and a transmission wheel 32 is provided at the left front end of the crushing device 31, the front end of the screening device 33 and the lower front end of the feeding device 34, and the transmission wheels 32 are connected by belts. The rear end of the feeding device 34 is fixedly connected to the rear wall of the inner cavity of the protective shell 2, and the right front end of the crushing device 31 is fixedly connected to the output end of the motor 8.

[0055] It should be particularly noted that the crushing device 31 is composed of two matching crushing knife rollers, a protective shell and two toothed disc wheels, the screening device 33 is composed of a semicircular shell and a screening roller matched therewith, and an arc-shaped filter screen is provided at the lower part of the semicircular shell, and the screening roller blades are also provided with filter holes, and qualified PET plastic bottle fragments can pass through; the feeding device 34 is composed of an arc-shaped cover and a conveyor belt and a transmission roller matched therewith, and it only needs to meet the purpose of crushing PET plastic bottles, screening fragments and conveying unqualified fragments for re-crushing.

[0056] After the PET plastic bottles are compressed, they enter the crushing device 31, and the motor 8 is started. The motor 8 cooperates with the transmission wheel 32 and the belt to make the crushing device 31, the screening device 33 and the feeding device 34 operate simultaneously. The PET plastic bottles are crushed by the crushing device 31, and the fragments are sent to the screening device 33. The PET plastic bottle fragments are screened by the screening device 33, so that qualified fragments pass through the screening device 33 into the inner cavity of the protective shell 2 and are discharged through the protective shell 2, and unqualified fragments are discharged into the feeding device 34 by the screening device 33. Through the feeding device 34, the unqualified fragments are crushed in the crushing device 31 again until qualified ones are discharged.

[0057] Working principle of the present invention:

[0058] First, the PET plastic bottle is allowed to enter the inner cavity of the feed hopper 51, and at the upper end of the baffle plate 52, the hydraulic cylinder 4 is then started, so that the hydraulic cylinder 4 drives the nail head pressure plate 642 to move upward in cooperation with the outer shell 631 and the round hole 632, and at the same time drives the two tooth plates 641 to move in the inner cavities of the two square hole grooves 633 respectively, and at the same time drives the two toothed disc assemblies 62 to rotate, thereby driving the baffle plate 52 to move rightward in the inner cavity of the sliding groove 53, and the baffle plate 52 no longer blocks the inner cavity of the feed hopper 51, and the PET plastic bottle will fall from the upper end of the baffle plate 52, and enter the inner cavity of the outer shell 631 through the inner cavity of the feed hopper 51, and at the same time, through the movement of the nail head pressure plate 642, the two rotating pull rods 6455 drive the rod sleeve 6451 to move in the inner cavity of the second limit groove 636 Slide to the right, when the nail head pressure plate 642 moves upward, the connecting plate 655 cooperates with the clamping head 653, so that the clamping head 653 drives the shielding plate 651 to move upward in the inner cavity of the positioning groove 652. When it moves to the appropriate position, the clamping plate 635 squeezes the arc surface of the clamping head 653 through the inner cavity of the positioning groove 652, so that the clamping head 653 compresses the spring 2 654 and enters the inner cavity of the connecting plate 655. The shielding plate 651 slides downward in the inner cavity of the limiting groove 1 634 under the action of its own gravity, and restores the initial position to block the PET plastic bottle entering the inner cavity of the outer shell 631. Then, the nail head pressure plate 642 is driven to move downward by the hydraulic cylinder 4. The nail head pressure plate 642 compresses the elastic rod 643, so that the elastic rod 643 drives the nail hole pressure plate 644 to press on the bottom wall of the inner cavity of the outer shell 631. The lower part of the nail head pressure plate 642 passes through the nail hole pressure plate 644, which acts on the PET plastic bottle, punctures the PET plastic bottle, and compresses it. The liquid flows into the inner cavity of the collection box 71 through the outer shell 631, and then enters the inner cavity of the support hole column 72 through the collection box 71, and finally flows out through the liquid outlet pipe 73. At the same time, the clamping head 653 is driven by the connecting plate 655 to slide downward to a suitable position close to the left end surface of the shielding plate 651. Under the elastic force of the spring 2 654, the clamping head 653 is pushed to separate from the inner cavity of the connecting plate 655 and enter the inner cavity of the positioning groove 652. When the nail head pressure plate 642 moves upward again, under the elastic force of the elastic rod 643, the nail hole pressure plate 644 will be pushed to separate from the surface of the needle head of the nail head pressure plate 642, so that the PET plastic bottle stuck on the needle head of the nail head pressure plate 642 The PET plastic bottles are cleared and dropped by the nail hole pressure plate 644, driving the shield plate 651 to move again. After compression, the nail head pressure plate 642 moves upward and lifts up, which will drive the gear rod 6452 to pull the PET plastic bottles on the bottom wall of the inner cavity of the outer shell 631, so that the PET plastic bottles enter the crushing group 3, and the motor 8 is started. The crushing device 31, the screening device 33 and the feeding device 34 are operated simultaneously through the motor 8 in conjunction with the transmission wheel 32 and the belt. The PET plastic bottles are crushed by the crushing device 31, and the fragments are sent to the screening device 33. The PET plastic bottle fragments are screened by the screening device 33, so that the qualified fragments enter the inner cavity of the protective shell 2 through the screening device 33 and are discharged through the protective shell 2, and the unqualified fragments are discharged into the feeding device 34 by the screening device 33.Through the material conveying device 34, the unqualified fragments are crushed in the crushing device 31 until they are discharged as qualified ones.

[0059] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A PET plastic bottle crushing and processing device, comprising a support frame (1), characterized in that: The inner cavity of the support frame (1) is fixedly connected to a protective shell (2), the inner cavity of the protective shell (2) is provided with a crushing group (3), the middle part of the front end of the protective shell (2) is fixedly connected to a motor (8), the upper part of the left end of the protective shell (2) is fixedly connected to a hydraulic cylinder (4), the left part of the hydraulic cylinder (4) is fixedly connected to a feeding group (5), and the lower part of the hydraulic cylinder (4) is fixedly connected to a support group (7); The compression mechanism (6) comprises two J-shaped frames (61), the inner cavities of the two J-shaped frames (61) are both rotatably connected to a toothed disc assembly (62), the lower ends of the two J-shaped frames (61) are commonly fixedly connected to a housing group (63), a compression group (64) is provided in the middle of the housing group (63), and a shielding group (65) is commonly provided at the right part of the housing group (63) and the right part of the compression group (64); The shell assembly (63) comprises an outer shell (631) fixedly connected to the upper left end of the protective shell (2); a round hole (632) is provided in the middle of the upper end of the outer shell (631); a square hole groove (633) is symmetrically provided in the middle of the upper end of the outer shell (631); a limiting groove (634) is provided in the right part of the inner cavity of the outer shell (631); a clamping plate (635) is symmetrically fixedly connected to the inner cavity of the limiting groove (634); a limiting groove (636) is provided in the bottom wall of the inner cavity of the outer shell (631); and the lower ends of the two J-shaped frames (61) are fixedly connected to the middle of the upper end of the outer shell (631); The compression group (64) includes a nail head pressure plate (642), the output end of the hydraulic cylinder (4) passes through the inner cavity of the circular hole (632) and is fixedly connected to the upper end of the nail head pressure plate (642) in the vertical direction, the middle part of the upper end of the nail head pressure plate (642) is symmetrically fixedly connected with a tooth plate (641), the four corners of the lower end of the nail head pressure plate (642) are fixedly connected with elastic rods (643), the lower ends of the four elastic rods (643) are commonly fixedly connected with a nail hole pressure plate (644), the front right part and the rear right part of the nail head pressure plate (642) are commonly fixedly connected with a pulling group (645), the outer surface of the pulling group (645) is slidably connected to the inner cavity of the second limiting groove (636), the upper parts of the outer surfaces of the two tooth plates (641) respectively pass through the inner cavity of the square hole groove (633) and are respectively combined with the outer surfaces of the two toothed disc assemblies (62); The material pulling group (645) includes a rotating pull rod (6455) fixedly connected to the right front end and the right rear end of the nail head pressure plate (642); the two rotating pull rods (6455) are fixedly connected to a rod sleeve (6451) on the opposite surface away from the nail head pressure plate (642); the inner cavity of the rod sleeve (6451) is rotatably connected to a gear rod (6452); the front and rear ends of the gear rod (6452) are fixedly connected to a rotating block (6453); the upper left ends of the two rotating blocks (6453) are fixedly connected to a spring 1 (6454); the other ends of the two springs 1 (6454) are fixedly connected to the left wall of the inner cavity of the rod sleeve (6451); The shielding group (65) comprises a shielding plate (651) slidably connected to the inner cavity of the limiting groove 1 (634); the upper end of the shielding plate (651) is symmetrically provided with positioning grooves (652) in the front and rear; the inner cavities of the two positioning grooves (652) are both slidably connected to clamps (653); the outer surfaces of the two clamps (653) are slidably connected to a connecting plate (655); the left ends of the two clamps (653) are both fixedly connected to spring 2 (654); and the left end of the connecting plate (655) is fixedly connected to the right end of the nail head pressure plate (642); The feed group (5) comprises a feed hopper (51) fixedly connected to the right end of the outer shell (631), a sliding groove (53) is provided in the middle of the inner cavity of the feed hopper (51), a material baffle plate (52) is slidably connected to the inner cavity of the sliding groove (53), and the lower right portion of the outer surface of the material baffle plate (52) is meshingly connected to the outer surfaces of the two toothed disc assemblies (62); The pulverizing group (3) comprises a pulverizing device (31) fixedly connected to the upper part of the inner cavity of the protective shell (2); a screening device (33) is fixedly connected to the lower end of the pulverizing device (31); a material transfer device (34) is fixedly connected to the lower right end of the screening device (33); a transmission wheel (32) is provided at the left front end of the pulverizing device (31), the front end of the screening device (33) and the lower front end of the material transfer device (34); and the transmission wheels (32) are connected by belts; the rear end of the material transfer device (34) is fixedly connected to the rear wall of the inner cavity of the protective shell (2); and the right front end of the pulverizing device (31) is fixedly connected to the output end of the motor (8).

2. A PET plastic bottle crushing and processing device according to claim 1, characterized in that: The support group (7) comprises a collection box (71) fixedly connected to the lower end of the outer shell (631), a support hole column (72) fixedly connected to the lower end of the collection box (71), and a liquid outlet pipe (73) is provided at the lower part of the outer surface of the support hole column (72).

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