An apparatus for recycling and reproducing amino molding compound recycling materials

Abstract

The present invention relates to the technical field of amino molding compound recycling, and specifically relates to a device for reproducing recycled amino molding compound, which includes a crushing box. A feed inlet is provided at the top of the crushing box, a crushing part is arranged inside the crushing box, and a cyclone separator is communicated with one side of the crushing box. By connecting the feed end of the cyclone separator with the discharge end of the crushing box, a negative pressure is formed inside the crushing box, and the external air flowing downward from the feed inlet into the feed box can not only accelerate the discharging speed inside the crushing box, but also prevent the dust generated after crushing from spreading. In addition, through the arranged sealing component and lifting component, for large particles that do not meet the size requirements, after the sealing component closes the feed inlet, the air flow path is optimized, the air flow rate introduced by the air intake port is increased, a stronger air flow is formed to entrain the large particles into the reflux channel, and the large particles are re-introduced into the crushing part through the reflux channel for secondary crushing, reducing waste and lowering the production cost.

Description

Technical Field

[0001] The present invention relates to the technical field of amino molding compound recycling, and particularly to a device for reproducing recycled amino molding compound materials. Background Art

[0002] With the enhancement of society's awareness of environmental protection and the growth of the demand for resource recycling, the recycling and reuse of high-molecular materials such as amino molding compounds have gradually become a research hotspot. As an important thermosetting resin material, amino molding compounds are widely used in fields such as decorative boards due to their excellent mechanical properties, chemical corrosion resistance, and good processing and molding characteristics. The recycling of waste amino molding compounds mainly focuses on physical methods such as crushing and grinding, aiming to convert them into smaller particles for subsequent recycling or as fillers blended into new products. However, the cost of secondary crushing of particles that do not meet the particle size requirements by traditional crushing equipment is relatively high.

[0003] The patent with the application number CN202222568390.5 discloses a waste amino molding compound recycling, crushing and cleaning integrated machine, including a frame and a crushing cylinder vertically and fixedly installed on the frame. At the top of the crushing cylinder, there is a feeding port for facilitating the input of amino molding compounds. Inside the upper part of the crushing cylinder, two crushing rollers arranged side by side are rotatably installed. There is a crushing gap for cooperating with amino molding compounds between the two crushing rollers. On the outer wall of the crushing cylinder, there is a power device for driving the crushing rollers to rotate.

[0004] However, after the above device crushes the raw materials, for large particles that do not meet the particle size requirements, a special screening device is still needed to screen out the large particles and a conveying device is erected to transport the screened particles back into the crushing cylinder for secondary crushing, which requires a relatively high cost and increases the use cost of the system. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a device for reproducing recycled amino molding compound materials to solve the problem that the existing amino molding compound recycling device has a relatively high cost for secondary crushing of particles that do not meet the particle size requirements.

[0006] Based on the above purpose, the present invention provides a device for reproducing recycled amino molding compound materials, including a crushing box, which has a feeding port at the top, a crushing part inside, and a cyclone separator connected to one side, and further includes:

[0007] Two groups of guard plates, symmetrically arranged inside the crushing box, the front and rear ends of the guard plates are fixedly connected to the inner wall of the crushing box. At the bottom of the bottom ends of the two groups of guard plates, there are respectively hollow air guide pipes, and on the side surfaces of the two groups of air guide pipes away from each other, there are exhaust holes; on the front side surface of the crushing box, there is an air inlet connected to the inner cavity of the air guide pipe.

[0008] Two groups of opening and closing plates are symmetrically arranged in the crushing box. The front and rear ends of the two groups of opening and closing plates are lapped with the inner wall of the crushing box, and partition plates are rotatably arranged at the tops respectively. The top of the partition plate is fixedly connected with the top of the inner cavity of the crushing box; A screening component is arranged between the bottom ends of the two groups of opening and closing plates; The two groups of opening and closing plates and the screening component divide the crushing box into a screening cavity and a feeding cavity from top to bottom;

[0009] A lifting component is arranged in the crushing box for lifting the screening component; When the lifting component lifts the screening component, it will drive the top of the opening and closing plate to closely adhere to the bottom of the air guiding pipe, so as to form a reflux channel between the opening and closing plate and the guard plate;

[0010] A sealing component is arranged in the crushing box for closing the feeding port;

[0011] A differential pressure sensor is arranged on the crushing box for monitoring the differential pressure between the screening cavity and the feeding cavity.

[0012] Furthermore, a reset slot is also opened at the top of the opening and closing plate. One end of the reset slot close to the screening component is rotatably provided with an elastic sheet, and the top of the elastic sheet abuts against the opening and closing plate; The air flow discharged from the exhaust hole acts on the elastic sheet and guides it to the screening component, so that the air flow is horizontally guided to the screening component; The elastic sheet and the reset slot are rotationally connected through a torsion spring hinge; When the lifting component lifts the screening component and drives the top of the opening and closing plate to closely adhere to the bottom of the air guiding pipe, the air guiding pipe will press the elastic sheet into the reset slot; When the lifting component controls the opening and closing plate to reset, the torsion spring hinge stores energy and releases it to drive the elastic sheet to reset and abut against the opening and closing plate.

[0013] Furthermore, the screening component includes an intermediate shaft and sieve plates rotatably arranged on both sides of the intermediate shaft. The two groups of sieve plates are respectively rotatably connected with the two groups of opening and closing plates; Among them, the intermediate shaft includes a first rotating shaft and two second rotating shafts. The two second rotating shafts are symmetrically and rotatably arranged at both ends of the first rotating shaft, and the first rotating shaft is connected with one side of the sieve plate, and the second rotating shaft is connected with the other side of the sieve plate.

[0014] Furthermore, the lifting component includes a mounting plate, the mounting plate is fixed on the rear wall of the crushing box, and an electric telescopic rod is fixedly arranged at the end of the mounting plate. The end of the output rod of the electric telescopic rod is connected with the intermediate shaft.

[0015] Furthermore, a vibrating sieve component is also arranged in the crushing box.

[0016] Furthermore, the vibrating sieve component includes a dialing block, the dialing block is rotatably arranged on the rear wall of the inner cavity of the crushing box, and a driving part for driving the dialing block to rotate is arranged on the crushing box; A sliding rod is also sleeved on the top of the output rod of the electric telescopic rod in a sliding manner. A spring is arranged in the sliding rod. One end of the spring is connected with the sliding rod, and the other end is connected with the output rod of the electric telescopic rod. The top of the sliding rod is connected with the intermediate shaft.

[0017] Furthermore, the crushing part includes two groups of crushing rollers, which are rotatably arranged in the inner cavity of the crushing box. Two groups of gear rods are rotatably arranged on one side of the crushing box. The ends of the two groups of gear rods are respectively provided with mutually meshing transmission gears. The two groups of gear rods are respectively connected to the roller shafts of the two groups of crushing rollers. A servo motor for driving a group of crushing rollers to rotate is provided on the other side of the crushing box.

[0018] Furthermore, the driving part includes two sets of transmission wheels, which are rotatably arranged on the crushing box and respectively connected to the two sets of shifting blocks; a transmission belt for transmission is sleeved between the transmission wheel and the gear rod of the transmission gear on the same side thereof.

[0019] Furthermore, the sealing assembly includes two groups of bidirectional screw rods, and two groups of second motors are provided on one side of the crushing box to drive the two groups of bidirectional screw rods to rotate. Two groups of sealing plates are provided between the two groups of bidirectional screw rods, and the sealing plates are respectively screwed to the two groups of bidirectional screw rods, and the two groups of sealing plates are symmetrically arranged on the front and rear sides of the feed port; after driving the two groups of bidirectional screw rods to rotate, the two groups of second motors will drive the two groups of sealing plates to move in a mirror image.

[0020] Furthermore, a suction pipe connected to an external suction pump is provided at the top of the cyclone separator, and a collecting box is connected at the bottom. A connecting pipe is provided between the cyclone separator and the crushing box, one end of the connecting pipe is connected to the crushing box, and the other end is tangentially arranged and connected to the cyclone separator.

[0021] The beneficial effects of the present invention are as follows: the feed end of the cyclone separator is connected with the discharge end of the crushing box, so that negative pressure is formed in the crushing box. The external air flows downward from the feed port into the feed box, which can not only accelerate the discharge speed in the crushing box, but also avoid the diffusion of dust generated after crushing. In addition, by setting the sealing component and the lifting component, large particles that do not meet the size requirements can optimize the airflow path after the sealing component closes the feed port, increase the airflow introduced by the air inlet, form a stronger airflow to entrain the large particles into the reflux channel and introduce the large particles into the crushing part again through the reflux channel for secondary crushing, thereby reducing waste and lowering production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the first viewing angle of an embodiment of the present invention;

[0024] Figure 2 Schematic diagram of the second perspective structure of the embodiment of the present invention;

[0025] Figure 3 In the embodiment of the present invention Figure 2 Enlarged structure diagram of A;

[0026] Figure 4 Front view sectional structure diagram of the embodiment of the present invention;

[0027] Figure 5 Partial front view sectional structure diagram of the embodiment of the present invention;

[0028] Figure 6 In the embodiment of the present invention Figure 5 Enlarged structure diagram of B;

[0029] Figure 7 Internal structure diagram of the slide bar in the embodiment of the present invention;

[0030] Figure 8 Internal structure diagram of the crushing box in the embodiment of the present invention;

[0031] Figure 9 In the embodiment of the present invention Figure 8 Enlarged structure diagram of C;

[0032] Figure 10 Structure diagram of the sealing component in the embodiment of the present invention;

[0033] Figure 11 Structure diagram of the intermediate shaft in the embodiment of the present invention.

[0034] The labels in the figure are:

[0035] 1. Crushing box; 101. Air inlet; 102. Feed inlet; 103. Guide plate; 2. Cyclone separator; 201. Suction pipe; 3. Collection box; 4. Connecting pipe; 5. Crushing part; 501. Crushing roller; 502. Transmission gear; 503. Servo motor; 6. Protective plate; 601. Air duct; 602. Exhaust hole; 7. Opening and closing plate; 701. Reset slot; 702. Elastic sheet; 8. Partition plate; 9. Sieve plate; 10. Intermediate shaft; 1001. First rotating shaft; 1002. Second rotating shaft; 11. Lifting component; 1101. Mounting plate; 1102. Electric telescopic rod; 1103. Slide bar; 1104. Spring; 12. Vibrating sieve component; 1201. Pushing block; 1202. Driving wheel; 1203. Transmission belt; 13. Sealing component; 1301. Bidirectional lead screw; 1302. Second motor; 1303. Sealing plate; 14. Differential pressure sensor. Detailed implementation manners

[0036] To make the objectives, technical solutions and advantages of the present invention more clear and understandable, the present invention will be further described in detail below in conjunction with specific embodiments.

[0037] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present invention should have the ordinary meanings understood by those with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar terms used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "comprising" or "including" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0038] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 As shown in

[0039] Two groups of guard plates 6, symmetrically arranged in the crushing box 1, the front and rear ends of the guard plates 6 are fixedly connected to the inner wall of the crushing box 1, and hollow air guide pipes 601 are respectively arranged at the bottoms of the two groups of guard plates 6. Exhaust holes 602 are opened on the side surfaces of the two groups of air guide pipes 601 away from each other; an air inlet 101 communicating with the inner cavity of the air guide pipe 601 is opened on the front side surface of the crushing box 1;

[0040] Two groups of opening and closing plates 7 are symmetrically arranged in the crushing box 1. The front and rear ends of the two groups of opening and closing plates 7 are lapped with the inner wall of the crushing box 1, and partition plates 8 are rotatably arranged at the top ends respectively. The top of the partition plate 8 is fixedly connected to the top of the inner cavity of the crushing box 1, and the opening and closing plate 7 rotates at the connection with the partition plate 8; A screening assembly is arranged between the bottom ends of the two groups of opening and closing plates 7; The two groups of opening and closing plates 7 and the screening assembly divide the crushing box 1 into a screening cavity and a feeding cavity from top to bottom;

[0041] A lifting assembly 11 is arranged in the crushing box 1 for lifting the screening assembly; When the lifting assembly 11 lifts the screening assembly, it will drive the top of the opening and closing plate 7 to closely adhere to the bottom of the air guide pipe 601, so as to form a return channel between the opening and closing plate 7 and the guard plate 6;

[0042] A sealing assembly 13 is arranged in the crushing box 1 for closing the feeding port 102;

[0043] A differential pressure sensor 14 is arranged on the crushing box 1 for monitoring the differential pressure between the screening cavity and the feeding cavity.

[0044] In this embodiment, the raw material for recycling aminoplastics is a decorative board. The decorative paper used for decoration on the board needs to be separated by air separation from the crushed particles after the board and the paper are crushed together. The feeding end of the cyclone separator 2 is communicated with the discharging end of the crushing box 1, so as to form a negative pressure in the crushing box 1; The crushing part 5 can crush the raw material fed into the crushing box 1 through the feeding port 102 into particles; When the external suction pump works, a negative pressure is formed in the cyclone separator 2 and the crushing box 1, so that the air flow enters the crushing box 1 through the feeding port 102 and enters the cyclone separator 2 after passing through the screening assembly; The air flow carries the crushed particles into the cyclone separator 2, and the cyclone separator 2 can separate the lighter impurities such as paper impurities contained in the raw material;

[0045] During this process, the screening assembly can screen out larger particles; As the gradually increasing and accumulated larger particles on the screening assembly will cause the screening assembly to be blocked, resulting in a decrease in the air flow rate of the air flow passing through the screening assembly and an increase in the differential pressure between the screening cavity and the feeding cavity; When the differential pressure between the two reaches the specified range value, the differential pressure sensor 14 will send a signal to the external control system. After receiving the signal, the external control system will send a working instruction to the sealing assembly 13 and the lifting assembly 11; After receiving the working instruction, the sealing assembly 13 starts to operate to close the feeding port 102. After receiving the working instruction, the lifting assembly 11 starts to operate to lift the screening assembly until the top of the opening and closing plate 7 closely adheres to the bottom of the air guide pipe 601, so as to form a return channel between the opening and closing plate 7 and the guard plate 6; During the lifting of the screening assembly, the large particles accumulated on the screening assembly will roll onto the two side opening and closing plates 7 and then move into the return channel;

[0046] Since the sealing component 13 closes the feed inlet 102, the external air flow can only be introduced into the crushing chamber 1 through the air guiding inlet 101. At this time, the air flow rate entering the inner cavity of the air guiding pipe 601 through the air guiding inlet 101 will increase. The air flow in the air guiding pipe 601 flows into the return channel through the exhaust holes 602 and entangles the large particles in the return channel and discharges them from the top end of the return channel, so as to bring the large particles into the crushing part 5 again for secondary crushing. The particles meeting the particle size requirements after secondary crushing will pass through the screening component and enter the cyclone separator 2 with the air flow for separation;

[0047] After secondary crushing, a reset signal is sent to the lifting component 11 and the sealing component 13 through an external control system. After receiving the reset signal, the sealing component 13 releases the sealing of the feed inlet 102. At the same time, after receiving the reset signal, the lifting component 11 drives the screening component to reset;

[0048] This device makes full use of resources, connects the feed end of the cyclone separator 2 with the discharge end of the crushing chamber 1, forms a negative pressure in the crushing chamber 1, and the external air flows downward from the feed inlet 102 into the feed box, which can not only accelerate the discharge speed in the crushing chamber 1, but also avoid the diffusion of dust generated after crushing; In addition, through the set sealing component 13 and lifting component 11, for the large particles that do not meet the size requirements, after the sealing component 13 closes the feed inlet 102, the air flow path can be adjusted and optimized, so that the air flow rate introduced by the air guiding inlet 101 increases, forming a stronger air flow to entangle the large particles into the return channel and introducing the large particles into the crushing part 5 again through the return channel for secondary crushing, reducing waste and lowering the production cost.

[0049] Preferably, a reset slot 701 is further opened at the top of the opening and closing plate 7. An elastic piece 702 is rotatably arranged at one end of the reset slot 701 close to the screening component, and the top of the elastic piece 702 abuts against the opening and closing plate 7; The air flow discharged from the exhaust holes 602 acts on the elastic piece 702 to guide the air flow to the screening component, so that the air flow is horizontally guided to the screening component; The elastic piece 702 and the reset slot 701 are rotationally connected through a torsion spring hinge; When the lifting component 11 lifts the screening component and drives the top of the opening and closing plate 7 to closely adhere to the bottom of the air guiding pipe 601, the air guiding pipe 601 will press the elastic piece 702 into the reset slot 701; When the lifting component 11 controls the opening and closing plate 7 to reset, the torsion spring hinge stores and releases energy to drive the elastic piece 702 to reset and abut against the opening and closing plate 7;

[0050] In this embodiment, when the device is in the crushing working state, since the sealing component 13 does not close the feed inlet 102, the air flow rate entering the air guiding pipe 601 through the air guiding inlet 101 is small at this time; The air flow discharged through the exhaust holes 602 blows on the elastic piece 702, and the elastic piece 702 will direct the air flow to the screening component, so that the air flow horizontally flows to the screening component, blowing the particles accumulated on the screening component, thereby optimizing the screening effect of the screening component.

[0051] Preferably, the screening assembly includes an intermediate shaft 10 and screening plates 9 rotatably arranged on both sides of the intermediate shaft 10. The screening plates 9 can screen out particles that do not meet the particle size requirements. The two groups of screening plates 9 are respectively rotatably connected to the two groups of opening and closing plates 7. Among them, the intermediate shaft 10 includes a first rotating shaft 1001 and two groups of second rotating shafts 1002. The two groups of second rotating shafts 1002 are symmetrically and rotatably arranged at both ends of the first rotating shaft 1001, and the first rotating shaft 1001 is connected to the screening plate 9 on one side, and the second rotating shaft 1002 is connected to the screening plate 9 on the other side.

[0052] The lifting assembly 11 includes a mounting plate 1101. The mounting plate 1101 is fixed to the rear wall of the crushing box 1. An electric telescopic rod 1102 is fixedly arranged at the end of the mounting plate 1101, and the end of the output rod of the electric telescopic rod 1102 is connected to the intermediate shaft 10.

[0053] In this embodiment, when the external control system issues a working signal, after receiving the working signal, the electric telescopic rod 1102 will drive the output rod to extend, thereby lifting the intermediate shaft 10 upward. The intermediate shaft 10 will drive the two side opening and closing plates 7 to move upward synchronously through the screening plates 9 on both sides, lifting the screening plates 9 on both sides from the screening state with a downward slope on both sides to the lifting state with an upward slope on both sides until the top of the opening and closing plate 7 is in close contact with the bottom of the air guide pipe 601. And during this process, when the screening plates 9 on both sides slope downward on both sides, they can guide the particles accumulated on the screening plates 9 to the opening and closing plates 7 until the particles move into the return channel.

[0054] Preferably, a vibrating screen assembly 12 is further arranged in the crushing box 1.

[0055] The vibrating screen assembly 12 includes a dial block 1201. The dial block 1201 is rotatably arranged on the rear wall of the inner cavity of the crushing box 1. A driving part for driving the dial block 1201 to rotate is arranged on the crushing box 1. A sliding rod 1103 is also slidably sleeved on the top of the output rod of the electric telescopic rod 1102. A spring 1104 is arranged in the sliding rod 1103. One end of the spring 1104 is connected to the sliding rod 1103, and the other end is connected to the output rod of the electric telescopic rod 1102. The top of the sliding rod 1103 is connected to the intermediate shaft 10.

[0056] In this embodiment, the driving part will drive the two groups of dial blocks 1201 to rotate in opposite directions. During the process that the two groups of dial blocks 1201 respectively rotate to abut against the two groups of opening and closing plates 7, they will press the two groups of opening and closing plates 7 to move closer to each other in a small range, so that the two groups of screening plates 9 move closer to each other in a small range. The intermediate shaft 10 will drive the sliding rod 1103 to slide downward at the top of the output rod of the electric telescopic rod 1102. Repeating this process repeatedly has the effect of vibrating the screen, avoiding the situation that small particles cannot pass through the screening assembly when large particles accumulate at the bottom, and further optimizing the screening effect of the screening assembly.

[0057] Preferably, the crushing part 5 includes two groups of crushing rollers 501. The two groups of crushing rollers 501 are rotatably arranged in the inner cavity of the crushing box 1. Two groups of toothed rods are rotatably arranged on one side of the crushing box 1. Transmission gears 502 that mesh with each other are respectively arranged at the ends of the two groups of toothed rods. The two groups of toothed rods are respectively connected to the roller shafts of the two groups of crushing rollers 501. A servo motor 503 for driving one group of crushing rollers 501 to rotate is arranged on the other side of the crushing box 1;

[0058] In this embodiment, the servo motor 503 drives one group of crushing rollers 501 to rotate. This group of crushing rollers 501 drives the other group of crushing rollers 501 to rotate in the reverse direction through two meshing transmission gears 502, and crushes the raw materials passing between the two groups of crushing rollers 501.

[0059] Preferably, the driving part includes two groups of transmission wheels 1202. The two groups of transmission wheels 1202 are rotatably arranged on the crushing box 1 and are respectively connected to the two groups of dial blocks 1201; A transmission belt 1203 for transmission is sleeved between the transmission wheel 1202 and the toothed rod of the transmission gear 502 on the same side thereof; When the two groups of crushing rollers 501 rotate, they will drive the two groups of toothed rods to rotate, and the two groups of toothed rods will drive the two groups of dial blocks 1201 to rotate through the transmission belt 1203.

[0060] Preferably, the sealing assembly 13 includes two groups of bidirectional lead screws 1301. Two groups of second motors 1302 for driving the two groups of bidirectional lead screws 1301 to rotate are arranged on one side of the crushing box 1. Two groups of plugging plates 1303 are arranged between the two groups of bidirectional lead screws 1301. Each group of plugging plates 1303 is respectively screwed to the two groups of bidirectional lead screws 1301. The two groups of plugging plates 1303 are symmetrically arranged on the front and back sides of the feed inlet 102; After the two groups of second motors 1302 drive the two groups of bidirectional lead screws 1301 to rotate, they will drive the two groups of plugging plates 1303 to move mirror-symmetrically;

[0061] When the external control system sends out a working signal, after the two groups of second motors 1302 receive the working signal, they will drive the bidirectional lead screws 1301 to rotate forward, thereby driving the two groups of plugging plates 1303 to approach each other to close the feed inlet 102; After the two groups of second motors 1302 receive the reset signal, they will drive the bidirectional lead screws 1301 to rotate in reverse, thereby driving the two groups of plugging plates 1303 to move away from each other to open the feed inlet 102.

[0062] Preferably, a suction pipe 201 communicating with an external suction pump is provided at the top of the cyclone separator 2, and a collection box 3 is connected to the bottom. A connecting pipe 4 is provided between the cyclone separator 2 and the crushing box 1. One end of the connecting pipe 4 is connected to the crushing box 1, and the other end is tangentially arranged and connected to the cyclone separator 2. The particles entering the cyclone separator 2 through the connecting pipe 4 will rotate at a high speed along the inner wall. Under the action of centrifugal force, the particulate matter will move downward along the inner wall and fall into the collection box 3 connected to the cyclone separator 2. The light impurities in the particulate matter will enter the suction pipe 201 along with the air flow and be discharged outward through the suction pipe 201.

[0063] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0064] The present invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for reproducing recycled amino molding plastics, comprising a crushing box (1), a feeding port (102) being arranged on the top thereof, a crushing part (5) being arranged inside thereof, and a cyclone separator (2) being connected to one side thereof, characterized in that: Also includes: Two groups of guard plates (6) are symmetrically arranged in the crushing box (1), the front and rear ends of the guard plates (6) are fixedly connected to the inner wall of the crushing box (1), the bottoms of the two groups of guard plates (6) are respectively provided with hollow air ducts (601), and the two groups of air ducts (601) are provided with exhaust holes (602) on the side away from each other; the front side of the crushing box (1) is provided with an air inlet (101) connected to the inner cavity of the air duct (601); Two groups of opening and closing plates (7) are symmetrically arranged in the crushing box (1), the front and rear ends of the two groups of opening and closing plates (7) overlap the inner wall of the crushing box (1), and the top ends are rotatably provided with partition plates (8), and the top of the partition plates (8) is fixedly connected to the top of the inner cavity of the crushing box (1); a screening assembly is arranged between the bottom ends of the two groups of opening and closing plates (7); the two groups of opening and closing plates (7) and the screening assembly divide the crushing box (1) into two parts, a screening cavity and a feeding cavity, from top to bottom; A lifting assembly (11) is arranged in the crushing box (1) and is used to lift the screening assembly; the lifting assembly (11) lifts the screening assembly, which drives the top of the opening and closing plate (7) to be in close contact with the bottom of the air duct (601), so that a reflux channel is formed between the opening and closing plate (7) and the guard plate (6); A sealing assembly (13) is arranged in the crushing box (1) and is used to seal the feed opening (102); A pressure difference sensor (14) is arranged on the crushing box (1) and is used to monitor the pressure difference between the screening chamber and the feeding chamber; The top of the opening and closing plate (7) is also provided with a reset slot (701), and an elastic sheet (702) is rotatably provided at one end of the reset slot (701) close to the screening component, and the top of the elastic sheet (702) is in contact with the opening and closing plate (7); the airflow discharged from the exhaust hole (602) acts on the elastic sheet (702) to guide the screening component, so that the airflow is horizontally guided to the screening component; the elastic sheet (702) and the reset slot (701) are rotatably connected via a torsion spring hinge; when the lifting component (11) lifts the screening component and drives the top of the opening and closing plate (7) to be in close contact with the bottom of the air duct (601), the air duct (601) presses the elastic sheet (702) into the reset slot (701); when the lifting component (11) controls the opening and closing plate (7) to reset, the torsion spring hinge releases the stored energy and drives the elastic sheet (702) to reset and abut against the opening and closing plate (7); The screening assembly comprises an intermediate shaft (10) and screen plates (9) rotatably arranged on both sides of the intermediate shaft (10), and the two groups of screen plates (9) are rotatably connected to the two groups of opening and closing plates (7) respectively; wherein the intermediate shaft (10) comprises a first rotating shaft (1001) and two groups of second rotating shafts (1002), and the two groups of second rotating shafts (1002) are symmetrically rotatably arranged at both ends of the first rotating shaft (1001), and the first rotating shaft (1001) is connected to the screen plate (9) on one side, and the second rotating shaft (1002) is connected to the screen plate (9) on the other side.

2. The amino molding compound recycled material re-production device according to claim 1, characterized in that: The lifting assembly (11) comprises a mounting plate (1101), wherein the mounting plate (1101) is fixed to the rear wall of the crushing box (1), and an electric telescopic rod (1102) is fixedly provided at the end of the mounting plate (1101), and the end of the output rod of the electric telescopic rod (1102) is connected to the intermediate shaft (10).

3. The amino molding compound recycled material re-production device according to claim 2, characterized in that: A vibrating screen assembly (12) is also provided in the crushing box (1).

4. The amino molding compound recycled material re-production device according to claim 3 is characterized in that: The vibrating screen assembly (12) comprises a shifting block (1201), which is rotatably arranged on the rear wall of the inner cavity of the crushing box (1), and the crushing box (1) is provided with a driving unit for driving the shifting block (1201) to rotate; a sliding rod (1103) is also slidably sleeved on the top of the output rod of the electric telescopic rod (1102), and a spring (1104) is arranged in the sliding rod (1103), one end of the spring (1104) is connected to the sliding rod (1103), and the other end is connected to the output rod of the electric telescopic rod (1102), and the top of the sliding rod (1103) is connected to the intermediate shaft (10).

5. The amino molding compound recycled material re-production device according to claim 1, characterized in that: The crushing part (5) comprises two groups of crushing rollers (501), the two groups of crushing rollers (501) are rotatably arranged in the inner cavity of the crushing box (1), one side of the crushing box (1) is rotatably arranged with two groups of toothed rods, the ends of the two groups of toothed rods are respectively provided with mutually meshing transmission gears (502), the two groups of toothed rods are respectively connected to the roller shafts of the two groups of crushing rollers (501), and the other side of the crushing box (1) is provided with a servo motor (503) for driving a group of crushing rollers (501) to rotate.

6. The amino molding compound recycled material reproducing device according to claim 4, characterized in that: The driving part comprises two groups of transmission wheels (1202), which are rotatably arranged on the crushing box (1) and respectively connected to the two groups of shifting blocks (1201); a transmission belt (1203) for transmission is sleeved between the transmission wheel (1202) and the toothed rod of the transmission gear (502) on the same side thereof.

7. The amino molding compound recycled material re-production device according to claim 1, characterized in that: The sealing component (13) comprises two groups of bidirectional screw rods (1301), and two groups of second motors (1302) are arranged on one side of the crushing box (1) for driving the two groups of bidirectional screw rods (1301) to rotate. Two groups of sealing plates (1303) are arranged between the two groups of bidirectional screw rods (1301), and the sealing plates (1303) are respectively screwed to the two groups of bidirectional screw rods (1301). The two groups of sealing plates (1303) are symmetrically arranged on the front and rear sides of the feed port (102); after driving the two groups of bidirectional screw rods (1301) to rotate, the two groups of second motors (1302) will drive the two groups of sealing plates (1303) to move in a mirror image.

8. The amino molding compound recycled material reproducing device according to claim 1, characterized in that: The top of the cyclone separator (2) is provided with a suction pipe (201) connected to an external suction pump, and the bottom is connected to a collecting box (3). A connecting pipe (4) is provided between the cyclone separator (2) and the crushing box (1), one end of the connecting pipe (4) is connected to the crushing box (1), and the other end is tangentially arranged and connected to the cyclone separator (2).

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