A device for recycling defective plastic products

Abstract

The present invention belongs to the technical field of recycling and reusing defective plastic products, and specifically is a device for recycling and reusing defective plastic products, comprising a crushing box and two groups of crushing rollers meshing with each other, the two groups of crushing rollers are rotatably installed in the crushing box, one end of the two groups of crushing rollers are installed with gears, the two groups of gears mesh with each other, a first synchronous wheel is installed on one side of one group of gears, a second synchronous wheel is arranged above the first synchronous wheel, the second synchronous wheel and the first synchronous wheel are meshed with synchronous toothed belts, a feeding mechanism is arranged at the upper end of the crushing box, the feeding mechanism comprises two groups of side plates, the two groups of side plates are symmetrically fixedly installed on the crushing box, the push rod and the syringe are made of plastic material, the rubber head of the needle tube is removed during the transmission process through the feeding mechanism, the rubber head and the needle tube are completely separated, and the rubber head is prevented from affecting the subsequent processing of the needle tube.

Description

Technical Field

[0001] The invention belongs to the technical field of recycling and reusing defective plastic products, in particular to a device for recycling and reusing defective plastic products. Background Art

[0002] Defective plastic products usually refer to those plastic products that have a negative impact on the environment, health or safety during the production, use or disposal process, such as plastic syringes. Since plastic syringes are consumables, the amount of plastic syringes discarded every day is very large. In order to save resources and protect the environment, crushing, melting and regranulation, modification and molding processing are usually used to recycle and reuse discarded plastic syringes to turn waste into treasure.

[0003] The patent with publication number CN118699039A discloses a plastic syringe crushing and processing device for hematology, including a crushing mechanism, a separation mechanism 2 is arranged above the crushing mechanism, an arranging and unloading mechanism is arranged on the separation mechanism 2, an arranging and unloading mechanism is arranged on one side above the separation mechanism 2, and a separation mechanism 1 is arranged on the other side above the separation mechanism 2. The crushing mechanism includes a crushing box, a right-angled trapezoidal extrusion block is installed inside the crushing box, and the crushing mechanism is used to crush the syringe barrel; the crushing mechanism also includes a push rod motor fixed through one side of the crushing box, one end of the output shaft of the push rod motor is fixedly connected to the right-angled trapezoidal extrusion block. This scheme automatically separates the push rod and the syringe in the plastic syringe through the cooperation of the separation mechanism 2 and the separation mechanism 1, without the need for manual separation, thereby improving the automation rate and overall processing efficiency of the device.

[0004] In the above scheme, after the push rod and the syringe are separated, the syringe will roll into the crushing box, and the push rod will pass through the fence into the interior of the collection box, but the rubber head is still mounted on the end of the push rod, and the separation of the plastic syringe is not thorough enough, resulting in rubber mixed in the recovered plastic particles when the push rod is subsequently crushed; for this reason, the present invention provides a device for recycling and reusing defective plastic products. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problems is: the defective plastic product recycling and reuse equipment described in the present invention includes a crushing box and two groups of crushing rollers that mesh with each other. The two groups of crushing rollers are rotatably installed in the crushing box. One end of the two groups of crushing rollers is equipped with gears. The two groups of gears mesh with each other. A first synchronous wheel is installed on one side of one group of gears. A second synchronous wheel is arranged above the first synchronous wheel. The second synchronous wheel and the first synchronous wheel are meshed with synchronous toothed belts. A feeding mechanism is arranged at the upper end of the crushing box. The feeding mechanism includes two groups of side plates. The two groups of side plates are symmetrically fixedly installed on the crushing box. Two groups of transmission shafts are rotatably installed between the two groups of side plates. The second synchronous wheel is installed at the end of one group of transmission shafts. The two groups Two groups of sprockets are installed on the transmission shaft, and each group of chains meshes with two groups of sprockets. Several groups of chain plates are distributed around the two groups of chains. The chain plates are fixedly connected to the chains, and a holding groove for placing syringes is provided on the chain plates. The lower end of the unloading box is fixedly connected to a group of side plates, and a trapezoidal plate is fixedly installed on one group of side plates. The guide box is fixedly installed on the other group of side plates. Two groups of guide posts are plugged into one end of the chain plate, and one end of the two groups of guide posts is fixedly connected to a push plate. A slot for limiting one end of a push rod is provided on the push plate, and a U-shaped fixture for clamping a rubber head is fixedly installed between one end of the chain plate and the push plate. A first spring is sleeved on the two groups of guide posts, and the other ends of the two groups of guide posts are fixedly connected to a receiving plate, and the middle part of the receiving plate is fixedly connected to an L-shaped rod;

[0007] The push rod and syringe are made of plastic. The rubber head of the syringe is removed during the conveying process through the unloading mechanism, so that the rubber head and the syringe are completely separated to avoid the rubber head affecting the subsequent processing of the syringe.

[0008] Preferably, a rod wheel is rotatably mounted on the end of the L-shaped rod;

[0009] The setting of the rod wheel reduces the friction between the end of the L-shaped rod and the side of the trapezoidal plate, thereby reducing the wear of the L-shaped rod and the trapezoidal plate.

[0010] Preferably, the U-shaped fixture comprises two sets of movable plates, which are movably mounted in the chain plate, and an arc-shaped plate fixedly connected to the ends of the movable plates, which is used to scrape off the rubber head on the other end of the push rod, and a guide groove is provided on the movable plate, and pins are fixedly mounted at both ends of the receiving plate, and the pins are located in the guide groove, and the guide groove consists of a straight groove and an oblique groove;

[0011] When the rubber head hits the U-shaped structure composed of two sets of arc plates, the U-shaped structure will prevent the rubber head from moving further, causing the rubber head to detach from the other end of the push rod. When the pin shaft slides into the oblique groove, the rubber head has detached from the other end of the push rod. Since the pin shaft squeezes the inner wall of the oblique groove, the two sets of receiving plates together with the corresponding arc plates move backwards, freeing the rubber head from being stuck between the two sets of arc plates, so that the rubber head can smoothly fall into the material guide box below.

[0012] Preferably, a correction mechanism is provided on the material box, and the correction mechanism includes two sets of guide rails, which are movably installed on both sides of the material box, one end of each set of guide rails is fixedly connected to a pressure plate, two sets of second springs are provided between the pressure plate and the material box, the other ends of each set of guide rails are fixedly connected to a T-shaped rod, guide grooves are provided on both sides of the material box, the guide rails are slidably connected to the guide grooves, a concave block is fixedly installed on the other end of the chain plate, a roller is rotatably installed on the end of the T-shaped rod, and the roller engages with a set of concave blocks;

[0013] Before the needle tube falls onto the chain plate, the push rod on the needle tube will be corrected by the pressure plate to ensure that the push rod is inserted into place to avoid the occurrence of machine jams.

[0014] The beneficial effects of the present invention are as follows:

[0015] 1. The push rod and syringe are made of plastic. The rubber head of the syringe is removed during the conveying process through the unloading mechanism, so that the rubber head and the syringe are completely separated to avoid the rubber head affecting the subsequent processing of the syringe.

[0016] 2. When the rubber head slides along the inner cavity of the syringe, the two groups of pins on the receiving plate slide along the two groups of linear grooves respectively. When the rubber head hits the U-shaped structure composed of the two groups of arc plates, the U-shaped structure will prevent the rubber head from continuing to move, so that the rubber head will be separated from the other end of the push rod. When the pin slides into the oblique groove, the rubber head has been separated from the other end of the push rod. Since the pin squeezes the inner wall of the oblique groove, the two groups of receiving plates together with the corresponding arc plates move backwards, freeing the rubber head from being stuck between the two groups of arc plates, so that the rubber head can smoothly fall into the material guide box below.

[0017] 3. When the rubber head slides along the inner cavity of the syringe, the two groups of pins on the receiving plate slide along the two groups of linear grooves respectively. When the rubber head hits the U-shaped structure composed of the two groups of arc plates, the U-shaped structure will prevent the rubber head from continuing to move, so that the rubber head will be separated from the other end of the push rod. When the pin slides into the oblique groove, the rubber head has been separated from the other end of the push rod. Since the pin squeezes the inner wall of the oblique groove, the two groups of receiving plates together with the corresponding arc plates move backwards, freeing the rubber head from being stuck between the two groups of arc plates, so that the rubber head can smoothly fall into the material guide box below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the interior of the crushing box of the present invention.

[0021] Figure 3 It is a schematic diagram of the material unloading mechanism of the present invention.

[0022] Figure 4 It is a schematic diagram of the chain plate, guide post, push plate, U-shaped fixture, first spring, receiving plate, L-shaped rod and needle tube assembly of the present invention.

[0023] Figure 5 It is a schematic diagram of another state of the chain plate, guide pin, push plate, U-shaped clamp and needle tube combination of the present invention.

[0024] Figure 6 It is a schematic diagram of the chain plate, push plate, U-shaped clamp and receiving plate assembly cut away in the present invention.

[0025] Figure 7 It is a schematic diagram of the combination of the U-shaped fixture and the receiving plate.

[0026] Figure 8 It is a schematic diagram of the chain plate, material guide box, correction mechanism and needle tube assembly of the present invention.

[0027] In the figure: 1, crushing box; 2, crushing roller; 3, gear; 4, first synchronous wheel; 5, synchronous toothed belt; 6, second synchronous wheel; 7, unloading mechanism; 8, needle tube; 81, syringe; 82, push rod; 83, rubber head; 701, side plate; 702, transmission shaft; 703, sprocket; 704, chain; 705, chain plate; 7051, holding groove; 7052, concave block; 706, guide box; 707, trapezoidal plate; 708, unloading box; 7081, guide groove ; 709, guide column; 710, push plate; 101, clamping groove; 711, U-shaped fixture; 712, first spring; 713, receiving plate; 131, pin shaft; 714, L-shaped rod; 41, rod wheel; 715, correction mechanism; 7111, arc plate; 7112, movable plate; 7113, guide groove; 31, straight groove; 32, oblique groove; 7151, guide rail; 7152, pressure plate; 7153, second spring; 7154, T-shaped rod; 7155, roller. DETAILED DESCRIPTION

[0028] 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.

[0029] Embodiment 1

[0030] like Figures 1 to 5As shown, a defective plastic product recycling and reuse device described in an embodiment of the present invention includes a crushing box 1 and two groups of crushing rollers 2 that are meshed with each other. The two groups of crushing rollers 2 are rotatably installed in the crushing box 1. One end of the two groups of crushing rollers 2 is installed with a gear 3. The two groups of gears 3 are meshed with each other. A first synchronous wheel 4 is installed on one side of one group of gears 3. A second synchronous wheel 6 is arranged above the first synchronous wheel 4. The second synchronous wheel 6 and the first synchronous wheel 4 are meshed with a synchronous toothed belt 5. A feeding mechanism 7 is arranged at the upper end of the crushing box 1. The feeding mechanism 7 includes two groups of side plates 701. The two groups of side plates 701 are symmetrically fixedly installed on the crushing box 1. Two groups of transmission shafts 702 are rotatably installed between the two groups of side plates 701. The second synchronous wheel 6 is installed at the end of one group of transmission shafts 702. Two groups of sprockets 703 are installed on the two groups of transmission shafts 702. Each group of chains 704 meshes with two groups of sprockets 703, which are distributed around There are several groups of chain plates 705 around the two groups of chains 704. The chain plates 705 are fixedly connected to the chains 704. The chain plates 705 are provided with a receiving groove 7051 for placing the syringe 81. The lower end of the material box 708 is fixedly connected to a group of side plates 701. A trapezoidal plate 707 is fixedly installed on one group of side plates 701. The material guide box 706 is fixedly installed on the other group of side plates 701. Two groups of guide pillars 709 are inserted at one end of the chain plate 705. One end of the guide column 709 is fixedly connected to the push plate 710, and a groove 101 for limiting one end of the push rod 82 is opened on the push plate 710. A U-shaped clamp 711 for clamping the rubber head 83 is fixedly installed between one end of the chain plate 705 and the push plate 710. The two groups of guide columns 709 are both sleeved with a first spring 712. The other ends of the two groups of guide columns 709 are fixedly connected to the receiving plate 713, and the middle part of the receiving plate 713 is fixedly connected to the L-shaped rod 714.

[0031] Specifically, the inner spacing of the U-shaped fixture 711 is larger than the outer diameter of the push rod 82, and the inner spacing of the U-shaped fixture 711 is smaller than the outer diameter of the rubber head 83. Before the needle tube 8 is crushed, the lower end of the material box 708 is directly opposite to the holding groove 7051 on a group of chain plates 705, and the needle tube 8 to be crushed is placed in the material box 708, and the needle tube 8 slides downward along the inner cavity of the material box 708, so that the syringe 81 on a group of needle tubes 8 falls on the holding groove 7051, and one end of the push rod 82 falls into the card slot 101, and the remaining needle tubes 8 are stacked in the material box 708 in sequence, and then a group of crushing rollers 2 are driven by a motor to rotate, and the lower attached Figure 1The direction indicated by the middle arrow is the direction of rotation. One set of crushing rollers 2 is driven by two sets of gears 3 meshing to make another set of crushing rollers 2 rotate synchronously. At the same time, the first synchronous wheel 4 rotates together with the other set of crushing rollers 2. The first synchronous wheel 4 rotates the second synchronous wheel 6 through the synchronous toothed belt 5. The second synchronous wheel 6 drives the corresponding transmission shaft 702 to rotate. The transmission shaft 702 drives the corresponding two sets of sprocket wheels 703 to rotate together. At the same time, the two sets of sprocket wheels 703 drive the other two sets of sprocket wheels 703 and the transmission shaft 702 to rotate together through two sets of chains 704, and make several sets of chain plates 705 do circular motion with the chains 704. Figure 3 The direction indicated by the middle arrow is the circular motion direction, and the chain plate 705 with the needle tube 8 placed thereon also moves, and the chain plate 705 begins to stagger the lower port of the material box 708, and the next set of chain plates 705 will move below the material box 708, so that the needle tube 8 in the material box 708 automatically falls onto the next set of chain plates 705, and then the chain plates 705 continue to be transported, and at the same time, the end of the L-shaped rod 714 on the chain plate 705 will be squeezed by one side of the trapezoidal plate 707, so that the L-shaped rod 714 brings The movable receiving plate 713 moves together with the two groups of guide pillars 709 and the push plate 710, and the receiving plate 713 compresses the two groups of first springs 712. Then the push plate 710 drives the push rod 82 through the slot 101, so that the push rod 82 drives the rubber head 83 to slide along the inner cavity of the syringe 81 until the rubber head 83 is completely separated from the syringe 81. Since the rubber head 83 cannot pass through the U-shaped fixture 711, as the push rod 82 continues to move, the rubber head 83 will be peeled off from the other end of the push rod 82. The removed rubber head 83 will fall into the guide box 706 below and be discharged from the unloading mechanism 7 along the guide box 706. When the end of the L-shaped rod 714 moves to the other side of the trapezoidal plate 707, the push rod 82 is reinserted into the syringe 81 under the action of the rebound force of the first spring 712, so that the rubber head 83 is separated from the entire needle tube 8. The needle tube 8 with the rubber head 83 removed will automatically fall into the crushing box 1 as the chain plate 705 is conveyed, and then the needle tube 8 with the rubber head 83 removed will be torn into pieces by two sets of crushing rollers 2. The above operation is repeated to process the needle tube 8 into plastic fragments. Subsequently, the plastic fragments are melted and regranulated, modified, and formed to realize the recycling and reuse of the needle tube 8. Compared with the prior art, the push rod 82 and the syringe 81 are made of plastic. The unloading mechanism 7 allows the needle tube 8 to remove the rubber head 83 during the conveying process, so that the rubber head 83 is completely separated from the needle tube 8, so as to avoid the rubber head 83 affecting the subsequent processing of the needle tube 8.

[0032] Furthermore, a rod wheel 41 is rotatably mounted on the end of the L-shaped rod 714 .

[0033] Specifically, the end of the L-shaped rod 714 is squeezed by the side of the trapezoidal plate 707, and the rod wheel 41 at the end of the L-shaped rod 714 will roll along the side of the trapezoidal plate 707. The setting of the rod wheel 41 reduces the friction between the end of the L-shaped rod 714 and the side of the trapezoidal plate 707, thereby reducing the wear of the L-shaped rod 714 and the trapezoidal plate 707.

[0034] like Figure 6 and Figure 7 As shown, the U-shaped clamp 711 includes two groups of movable plates 7112, which are movably installed in the chain plate 705, and an arc plate 7111 is fixedly connected to the end of the movable plate 7112. The arc plate 7111 is used to scrape off the rubber head 83 on the other end of the push rod 82. A guide groove 7113 is opened on the movable plate 7112, and pins 131 are fixedly installed at both ends of the receiving plate 713. The pin 131 is located in the guide groove 7113, and the guide groove 7113 consists of a straight groove 31 and an oblique groove 32.

[0035] Specifically, when the rubber head 83 is separated from the other end of the push rod 82, due to the elasticity of the rubber head 83, a part of the rubber head 83 will enter between the two sets of U-shaped fixtures 711, and the rubber head 83 will be stuck in the U-shaped fixture 711, so that the rubber head 83 cannot fall into the guide box 706 below by itself, and the rubber head 83 will prevent the push rod 82 from being reinserted into the syringe 81, causing the push rod 82 to return to the syringe 81. Therefore, when the rubber head 83 slides along the inner cavity of the syringe 81, the two sets of pins 131 on the receiving plate 713 respectively move along the two sets of straight The wire groove 31 slides, and when the rubber head 83 hits the U-shaped structure composed of the two groups of arc plates 7111, the U-shaped structure will prevent the rubber head 83 from continuing to move, so that the rubber head 83 is separated from the other end of the push rod 82. When the pin shaft 131 slides into the oblique groove 32, the rubber head 83 has been separated from the other end of the push rod 82. Since the pin shaft 131 squeezes the inner wall of the oblique groove 32, the two groups of receiving plates 713 together with the corresponding arc plates 7111 move backwards, and the rubber head 83 is released from the two groups of arc plates 7111, so that the rubber head 83 can fall smoothly into the guide box 706 below.

[0036] Embodiment 2

[0037] like Figure 8As shown, compared with Example 1, another embodiment of the present invention is: a correction mechanism 715 is arranged on the unloading box 708, and the correction mechanism 715 includes two groups of guide rails 7151, and the two groups of guide rails 7151 are movably installed on both sides of the unloading box 708, one end of the two groups of guide rails 7151 are fixedly connected to the pressure plate 7152, and two groups of second springs 7153 are arranged between the pressure plate 7152 and the unloading box 708, and the other ends of the two groups of guide rails 7151 are fixedly connected to the T-bar 7154, and guide grooves 7081 are opened on both sides of the unloading box 708, and the guide rails 7151 are slidably connected to the guide grooves 7081, and the other end of the chain plate 705 is fixedly installed with a concave block 7052, and the end of the T-bar 7154 is rotatably installed with a roller 7155, and the roller 7155 engages with a group of concave blocks 7052.

[0038] Specifically, in the process of recovering the needle tube 8, it cannot be ensured that all the push rods 82 can be completely inserted into the bottom of the syringe 81. When the push rod 82 is not inserted into place, it is obvious that the staff can identify it with the naked eye. However, when the difference between the push rod 82 and the insertion position is not very obvious, the staff cannot identify it with the naked eye. Such needle tubes 8 will not be able to fall onto the chain plate 705 smoothly, causing the machine to jam. In the initial state, the roller 7155 just engages with a group of concave blocks 7052. Therefore, after the needle tube 8 is placed in the discharge box 708, during the circular motion of several groups of chain plates 705, the roller 7155 on the correction mechanism 715 will be squeezed by the group of concave blocks 7052, so that the roller 7155 drives the T-bar 7154 to move back to the direction of the discharge box 708. At the same time, the T-bar 7154 drives the two sets of guide rails 7151 together with the two sets of pressure plates 7152 to move, the guide rails 7151 slide along the guide groove 7081, the pressure plate 7152 will be squeezed toward the push rod 82, and the pressure plate 7152 compresses the two sets of second springs 7153. If the push rod 82 is not inserted into place, the pressure plate 7152 will push the push rod 82 to make the push rod 82 inserted into place until the roller 7155 is offset from the current concave block 7052. Under the action of the rebound force of the second spring 7153, the roller 7155 is engaged with the next set of concave blocks 7052. Therefore, before the needle tube 8 falls onto the chain plate 705, the push rod 82 on the needle tube 8 will be corrected by the pressure plate 7152 to ensure that the push rod 82 is inserted into place to avoid the occurrence of machine jamming.

[0039] Working principle: before the needle tubes 8 are crushed, the lower end of the material box 708 faces the holding groove 7051 on a group of chain plates 705, and the needle tubes 8 to be crushed are placed in the material box 708. The needle tubes 8 slide downward along the inner cavity of the material box 708, so that the syringes 81 on a group of needle tubes 8 fall on the holding groove 7051, and one end of the push rod 82 falls into the card slot 101, and the remaining needle tubes 8 are stacked in the material box 708 in sequence, and then a group of crushing rollers 2 are driven by a motor to rotate, and the lower attached Figure 1The direction indicated by the middle arrow is the direction of rotation. One set of crushing rollers 2 is driven by two sets of gears 3 meshing to make another set of crushing rollers 2 rotate synchronously. At the same time, the first synchronous wheel 4 rotates together with the other set of crushing rollers 2. The first synchronous wheel 4 rotates the second synchronous wheel 6 through the synchronous toothed belt 5. The second synchronous wheel 6 drives the corresponding transmission shaft 702 to rotate. The transmission shaft 702 drives the corresponding two sets of sprocket wheels 703 to rotate together. At the same time, the two sets of sprocket wheels 703 drive the other two sets of sprocket wheels 703 and the transmission shaft 702 to rotate together through two sets of chains 704, and make several sets of chain plates 705 do circular motion with the chains 704. Figure 3 The direction indicated by the middle arrow is the direction of circular motion. The chain plate 705 on which the needle tube 8 is placed also moves, and the chain plate 705 begins to stagger the lower port of the discharge box 708. The next set of chain plates 705 will move below the discharge box 708, so that the needle tube 8 in the discharge box 708 automatically falls onto the next set of chain plates 705, and then the chain plates 705 continue to be transported. At the same time, the end of the L-shaped rod 714 on the chain plate 705 will be squeezed by one side of the trapezoidal plate 707, so that the L-shaped rod 714 drives the receiving plate 713 together with the two sets of guide pillars 709 and the push plate 710 to move, and the receiving plate 713 compresses the two sets of first springs 712, and then the push plate 710 drives the push rod 82 through the slot 101, so that the push rod 82 drives the rubber head 83 to slide along the inner cavity of the syringe 81 until the rubber head 83 is completely separated from the syringe 81. Since the rubber head 83 cannot Through the U-shaped fixture 711, as the push rod 82 continues to move, the rubber head 83 will be peeled off from the other end of the push rod 82, and the removed rubber head 83 will fall into the guide box 706 below, and be discharged from the unloading mechanism 7 along the guide box 706. When the end of the L-shaped rod 714 moves to the other side of the trapezoidal plate 707, under the action of the rebound force of the first spring 712, the push rod 82 is reinserted into the syringe 81 to separate the rubber head 83 from the entire needle tube 8. The needle tube 8 with the rubber head 83 removed will automatically fall into the crushing box 1 as the chain plate 705 conveys it, and then the needle tube 8 with the rubber head 83 removed will be torn into pieces by two sets of crushing rollers 2. The above operation is repeated to process the needle tube 8 into plastic fragments. The plastic fragments are subsequently melted and regranulated, modified, and molded to achieve recycling of the needle tube 8.

[0040] When the rubber head 83 slides along the inner cavity of the syringe 81, the two groups of pins 131 on the receiving plate 713 slide along the two groups of linear grooves 31 respectively. When the rubber head 83 hits the U-shaped structure formed by the two groups of arc plates 7111, the U-shaped structure will prevent the rubber head 83 from moving further, so that the rubber head 83 is separated from the other end of the push rod 82. When the pin 131 slides into the oblique groove 32, the rubber head 83 has been separated from the other end of the push rod 82. Since the pin 131 squeezes the inner wall of the oblique groove 32, the two groups of receiving plates 713 together with the corresponding arc plates 7111 move backwards, and the rubber head 83 is released from being stuck between the two groups of arc plates 7111.

[0041] After the needle tube 8 is placed into the discharge box 708, during the circular motion of several groups of chain plates 705, the roller 7155 on the correction mechanism 715 will be squeezed by a group of concave blocks 7052, so that the roller 7155 drives the T-bar 7154 to move back to the direction of the lower box 708. At the same time, the T-bar 7154 drives the two groups of guide rails 7151 together with the two groups of pressure plates 7152 to move together. The guide rails 7151 slide along the guide grooves 7081, and the pressure plates 7152 will be squeezed toward the push rod 82, and the pressure plates 7152 compress the two groups of second springs 7153. If the push rod 82 is not inserted into place, the pressure plate 7152 will push the push rod 82 so that the push rod 82 is inserted into place until the roller 7155 is offset from the current concave block 7052, and under the action of the rebound force of the second spring 7153, the roller 7155 is engaged with the next group of concave blocks 7052.

[0042] The above shows and describes the basic principles, main features and 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. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for recycling defective plastic products, comprising a crushing box (1), two sets of mutually engaged crushing rollers (2), characterized in that: The upper end of the crushing box (1) is provided with a material discharge mechanism (7); The material unloading mechanism (7) comprises two sets of side plates (701); Two sets of transmission shafts (702) are rotatably mounted between the two sets of side plates (701), and two sets of sprocket wheels (703) are mounted on the two sets of transmission shafts (702); two sets of chains (704), each set of chains (704) meshing with two sets of sprockets (703); A plurality of groups of chain plates (705) are distributed around the two groups of chains (704), the chain plates (705) are fixedly connected to the chains (704), and a receiving groove (7051) for receiving the syringe (81) is provided on the chain plates (705); A material discharge box (708), wherein the lower end of the material discharge box (708) is fixedly connected to a group of side plates (701), and a trapezoidal plate (707) is fixedly mounted on the group of side plates (701); A material guide box (706), wherein the material guide box (706) is fixedly mounted on another set of the side plates (701); Two groups of guide posts (709) are inserted into one end of the chain plate (705), one end of the two groups of guide posts (709) are fixedly connected to a push plate (710), and a slot (101) for limiting one end of a push rod (82) is provided on the push plate (710); A U-shaped fixture (711) for clamping the rubber head (83) is fixedly installed between one end of the chain plate (705) and the push plate (710); The two groups of guide posts (709) are both sleeved with a first spring (712), and the other ends of the two groups of guide posts (709) are both fixedly connected to a receiving plate (713), and the middle part of the receiving plate (713) is fixedly connected to an L-shaped rod (714).

2. The defective plastic product recycling equipment according to claim 1 is characterized by: One end of the two groups of crushing rollers (2) is equipped with a gear (3), and the two groups of gears (3) are meshed with each other. A first synchronous wheel (4) is installed on one side of one group of gears (3), and a second synchronous wheel (6) is arranged above the first synchronous wheel (4). The second synchronous wheel (6) and the first synchronous wheel (4) are meshed with a synchronous toothed belt (5), and the second synchronous wheel (6) is installed at the end of one group of transmission shafts (702).

3. The defective plastic product recycling equipment according to claim 2 is characterized by: The two groups of side plates (701) are symmetrically fixedly mounted on the crushing box (1), and the two groups of crushing rollers (2) are rotatably mounted in the crushing box (1).

4. The defective plastic product recycling equipment according to claim 3 is characterized by: A rod wheel (41) is rotatably mounted on the end of the L-shaped rod (714).

5. The defective plastic product recycling equipment according to claim 4 is characterized by: The U-shaped fixture (711) comprises: Two groups of movable plates (7112), the two groups of movable plates (7112) are movably installed in the chain plate (705); An arc-shaped plate (7111) is fixedly connected to the end of the movable plate (7112), and the arc-shaped plate (7111) is used to scrape off the rubber head (83) on the other end of the push rod (82).

6. The defective plastic product recycling equipment according to claim 5, characterized in that: The movable plate (7112) is provided with a guide groove (7113), and pins (131) are fixedly installed at both ends of the receiving plate (713), and the pins (131) are located in the guide groove (7113).

7. The defective plastic product recycling equipment according to claim 6 is characterized by: The guide groove (7113) is composed of a straight groove (31) and an oblique groove (32).

8. The defective plastic product recycling equipment according to claim 7 is characterized by: The material box (708) is provided with a correction mechanism (715), and the correction mechanism (715) comprises: Two sets of guide rails (7151), the two sets of guide rails (7151) are movably mounted on both sides of the material discharge box (708); One end of the two groups of guide rails (7151) is fixedly connected to a pressing plate (7152); Two groups of second springs (7153) are arranged between the pressing plate (7152) and the material discharge box (708); The other ends of the two sets of guide rails (7151) are fixedly connected to the T-shaped rod (7154).

9. The defective plastic product recycling equipment according to claim 8, characterized in that: Guide grooves (7081) are provided on both sides of the material discharge box (708), and the guide rails (7151) are slidably connected to the guide grooves (7081).

10. The defective plastic product recycling equipment according to claim 9, characterized in that: A concave block (7052) is fixedly mounted on the other end of the chain plate (705), and a roller (7155) is rotatably mounted on the end of the T-shaped rod (7154), and the roller (7155) is engaged with a group of the concave blocks (7052).

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