A recycling apparatus based on waste polyurethane balloons

Abstract

The application relates to the technical field of polyurethane balloon recycling, and discloses a recycling equipment based on waste polyurethane balloons, which comprises a main body, a crushing cavity is bolted to the top of the main body, and a discharge box is fixedly connected to the bottom of the crushing cavity. When the cutter heads on the two connecting shafts rotate relative to each other, the three cutting rings will rotate synchronously with the cutter heads, at this time, the bevel edges of the cutting rings will produce position displacement relative to the side surfaces of the adjacent cutter heads, the balloon fragments remaining between the two cutter heads can be scraped off, the situation that the long strip-shaped film formed in the crushing process of the waste polyurethane balloons bypasses the cutter head edges, slides into the space between the two cutter heads and is wound and accumulated on the surface of the connecting shaft can be reduced, the crushing efficiency of the balloons is ensured, and the uniformity of the discharged fragments of the crushed balloons is improved.

Description

Technical Field

[0001] This invention relates to the field of polyurethane balloon recycling technology, specifically to a recycling device based on waste polyurethane balloons. Background Technology

[0002] Waste polyurethane balloons (mostly thermoplastic polyurethane (TPU) film balloons, not cross-linked PU sponge) recycling equipment is a complete set of industrial equipment specifically designed to process thin, highly elastic, and easily tangled waste balloons into TPU recycled granules. It belongs to the thermoplastic elastomer physical recycling production line. When recycling waste polyurethane balloons, a dual-shaft shredder is usually used to shred them into fragments, transforming the waste into a reusable form to achieve the recycling purpose. However, due to the extremely thin and highly elastic nature of waste polyurethane balloons, when the dual-shaft blades rotate relative to each other to shred the balloons, the balloons tend to stretch elastically under the pushing force of the blades, making them difficult to cut directly. Some balloons, after being stretched, will be pulled into long strips of film, which will wrap around the blades and accumulate on the surface of the blade shaft. This not only reduces the crushing efficiency but also seriously affects the uniformity of the output fragments. Summary of the Invention

[0003] The purpose of this invention is to provide a recycling device based on waste polyurethane balloons to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a recycling device for waste polyurethane balloons, comprising a main body, a crushing chamber bolted to the top of the main body, a discharge box fixedly connected to the bottom of the crushing chamber, and further comprising: The elastic component is installed inside the crushing chamber to provide elastic support and cutting for the material during the crushing process, so as to prevent the material from entanglement. The elastic component includes several return springs disposed inside the crushing chamber, and a cutting ring is fixedly connected to the end of each return spring; A limiting component is installed on the side wall of the active component to reduce resonance in the active component.

[0005] Furthermore, the main body includes: The driver component is installed on the top of the main body; Crushing assembly, which is installed inside the crushing chamber; The drive component can drive the crushing component to rotate and crush the material.

[0006] Furthermore, the resilient components also include: The movable component is installed on the side wall of the cutting ring and is used to cut and scrape off stuck material.

[0007] Furthermore, the limiting components also include: The auxiliary component is installed on the side wall of the cutting ring to keep the three cutting rings moving synchronously as a whole when the cutting ring is not squeezed by material.

[0008] Furthermore, the drive assembly includes two couplings fixedly connected to the top of the main body, the two couplings being symmetrically distributed around the crushing chamber; A drive motor is installed at the bottom of the coupling, and the drive motor is connected to the input end of the coupling via a belt. The bottom of the drive motor is fixedly connected to the bottom inner wall of the main body.

[0009] Furthermore, the crushing assembly includes a connecting shaft rotatably connected inside the crushing chamber, with the side of the connecting shaft away from the center of the crushing chamber rotatably extending through to the side wall of the crushing chamber; The extension end of the connecting shaft is sleeved onto the output end of the coupling.

[0010] Furthermore, several cutter discs are slidably connected to the outer surface of the connecting shaft inside the crushing chamber; The right side of the cutter head is provided with a first annular groove, and the side wall of the first annular groove is rotatably connected with several balls for forming a rolling engagement with the auxiliary disc. A second annular groove is formed on the side wall of the first annular groove; Several cutter discs located on two connecting shafts inside the crushing chamber are arranged in a cross-overlapping pattern.

[0011] Furthermore, several return springs are fixedly connected to the side wall of the second annular groove in groups of three; The active component includes an L-ring that is fixedly connected to the sidewall of the first cutting ring; The cutting ring has three sliding grooves inside, which are arranged in a circular array around the center of the cutting ring. The sidewall of the sliding groove is provided with a recessed groove; The three cutting rings are arranged side by side inside the second annular groove. When the material slides into the gap between the two cutter discs, the material will push the cutting rings, so that the three cutting rings are arranged in a stepped and staggered manner. At this time, the cutting rings after the movement will cut the material that has slid in under the elastic potential energy of the return spring.

[0012] Furthermore, the sidewall of the L-ring is rotatably connected to several connecting springs, which are arranged in a circular array around the cutting ring. The auxiliary components include an auxiliary disk that is rotatably connected to one end of several connecting springs away from the L-ring.

[0013] Furthermore, the auxiliary disk is rotatably connected to the outer surface of several balls; The connecting spring is inclined between the L-ring and the auxiliary disk. When the first cutting ring slides after being pushed by the material, the cutting ring will stretch the connecting spring through the L-ring. After multiple connecting springs are stretched, they will drive the auxiliary disk, causing the auxiliary disk to rotate on the surface of multiple balls. The three sliding grooves are internally connected by spring pieces, and the sidewalls of the spring pieces are provided with annular protrusions; The spring is inserted into the corresponding sliding groove on the three cutting rings. At this time, the spring is inside the three cutting rings. By inserting the spring between the three cutting rings, the three cutting rings can be in a single structure when they are not squeezed by the material, thereby reducing the resonance that occurs when the three cutting rings rotate with the connecting shaft.

[0014] The present invention has the following beneficial effects: 1. In this invention, when the cutter discs on the two connecting shafts rotate relative to each other, the three cutting rings will rotate synchronously with the cutter discs. At this time, the beveled edge of the cutting ring will shift relative to the side of the adjacent cutter disc, which can scrape off the balloon fragments remaining between the two cutter discs. This can reduce the situation where waste polyurethane balloons form long strip-shaped films that bypass the cutter disc edges, slide between the two cutter discs, and accumulate on the surface of the connecting shaft during the crushing process, thus ensuring the crushing efficiency of the balloon and improving the uniformity of the balloon fragments after crushing.

[0015] 2. The present invention generates a kneading force on the material sliding between the two cutter discs, causing the material to accumulate into a larger strip, so that the material can be cut by the cutting ring more effectively and will not slip out during the cutting process. At the same time, when the cutting ring stretches multiple connecting springs through the L-ring, the cutting ring is also subjected to the contraction tension of multiple connecting springs, thereby ensuring the cutting strength when cutting the material.

[0016] 3. In this invention, when the multiple cutting rings are not pushed by the material, the spring can keep the three cutting rings in a single structure, thereby reducing the reciprocating resonance and impact on the side walls of adjacent cutter discs caused by the return spring during the rotation of the three cutting rings with the cutter disc, ensuring the integrity of the cutter disc cutting edge, and improving the continuity and effectiveness of the cutting rings in blocking and cutting materials.

[0017] 4. This invention reduces the likelihood of material fragments entering and getting stuck between the two cutting rings and inside the cutting ring and the second annular groove during the process of blocking and cutting materials. It ensures that the three cutting rings can slide stably and stably. At the same time, when the three cutting rings are reset, the spring can also maintain the consistency of the three cutting rings after reset through its own elasticity, further reducing the accumulation of material between the two cutter discs and improving the stability of the cutting ring in blocking materials.

[0018] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall partial cross-sectional structure of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the explosion of the crushing component of the present invention. Figure 5 This is a partial structural diagram of the crushing component of the present invention; Figure 6 This is an exploded view of the active components of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point B in the middle; Figure 8 This is a partial exploded cross-sectional view of the active component of the present invention.

[0021] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Main body; 101. Crushing chamber; 102. Discharge box; 11. Drive assembly; 111. Coupling; 112. Drive motor; 12. Crushing assembly; 121. Connecting shaft; 122. Cutter disc; 123. First annular groove; 124. Second annular groove; 2. Elastic assembly; 201. Return spring; 21. Movable assembly; 211. Cutting ring; 212. L-ring; 213. Sliding groove; 3. Restricting assembly; 301. Connecting spring; 31. Auxiliary assembly; 311. Auxiliary disc; 312. Spring. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figures 1-8 As shown, this invention is a recycling device based on waste polyurethane balloons, including a main body 1, a crushing chamber 101 bolted to the top of the main body 1, a discharge box 102 fixedly connected to the bottom of the crushing chamber 101, and further including: Elastic component 2 is installed inside the crushing chamber 101 to provide elastic support and cutting for the material during the crushing process, so as to prevent the material from entanglement. The elastic component 2 includes a plurality of return springs 201 disposed inside the crushing chamber 101, and a cutting ring 211 is fixedly connected to the end of the return spring 201; Limiting component 3 is installed on the side wall of the active component 21 to reduce resonance in the active component 21.

[0024] Entity 1 includes: Drive component 11 is installed on the top of the main body 1; Crushing assembly 12 is installed inside the crushing chamber 101; The operation of the drive component 11 can drive the crushing component 12 to rotate and crush the material.

[0025] Resilient component 2 also includes: The movable component 21 is installed on the side wall of the cutting ring 211 and is used to cut and scrape off stuck materials.

[0026] Component 3 also includes: The auxiliary component 31 is installed on the side wall of the cutting ring 211 and is used to keep the three cutting rings 211 moving synchronously as a whole when the cutting ring 211 is not squeezed by the material.

[0027] The drive assembly 11 includes two couplings 111 fixedly connected to the top of the main body 1, and the two couplings 111 are symmetrically distributed with the crushing chamber 101 as the center. A drive motor 112 is provided at the bottom of the coupling 111, and the drive motor 112 is connected to the input end of the coupling 111 via a belt. The bottom of the drive motor 112 is fixedly connected to the bottom inner wall of the main body 1.

[0028] The crushing assembly 12 includes a connecting shaft 121 rotatably connected inside the crushing chamber 101, with the side of the connecting shaft 121 away from the middle of the crushing chamber 101 rotatably extending through to the side wall of the crushing chamber 101. The extension end of the connecting shaft 121 is sleeved on the output end of the coupling 111; When the drive motor 112 is working, it drives the connecting shaft 121 connected to it to rotate through the belt and coupling 111. At this time, the two connecting shafts 121 inside the crushing chamber 101 will rotate relative to each other.

[0029] Several cutter discs 122 are slidably connected to the outer surface of the connecting shaft 121 located inside the crushing chamber 101; The right side of the cutter head 122 is provided with a first annular groove 123, and the side wall of the first annular groove 123 is rotatably connected with a number of balls for forming a rolling engagement with the auxiliary disk 311. The side wall of the first annular groove 123 is provided with a second annular groove 124; Several cutterheads 122 located on two connecting shafts 121 inside the crushing chamber 101 are arranged in a cross-overlapping pattern.

[0030] Several return springs 201 are fixedly connected to the side wall of the second annular groove 124 in groups of three; The active component 21 includes an L-ring 212 that is fixedly connected to the side wall of the first cutting ring 211; The cutting ring 211 has three sliding grooves 213 inside, and the three sliding grooves 213 are arranged in a circular array with the middle part of the cutting ring 211 as the center. The side wall of the sliding groove 213 is provided with a recessed groove; When the first cutting ring 211 slides in the second annular groove 124 after being pushed by the material, the cutting ring 211 will drive the L ring 212 to slide synchronously. The three cutting rings 211 are arranged side by side inside the second annular groove 124. When the material slides into the gap between the two cutter discs 122, the material will push the cutting rings 211, so that the three cutting rings 211 are arranged in a stepped staggered manner. At this time, the moving cutting rings 211 will cut the material that has slid in under the elastic potential energy of the return spring 201.

[0031] The side wall of the L-ring 212 is rotatably connected to several connecting springs 301, which are arranged in a circular array around the cutting ring 211. The auxiliary component 31 includes an auxiliary disk 311 rotatably connected to one end of a plurality of connecting springs 301 away from the L-ring 212; When the multiple connecting springs 301 are stretched, they will exert an oblique pull on the auxiliary disk 311, causing the auxiliary disk 311 to rotate in the opposite direction to the cutter head 122 on the surface of multiple balls.

[0032] The auxiliary disk 311 is rotatably connected to the outer surface of several balls; The connecting spring 301 is inclined between the L ring 212 and the auxiliary disk 311. When the first cutting ring 211 slides after being pushed by the material, the cutting ring 211 will stretch the connecting spring 301 through the L ring 212. After being stretched, the multiple connecting springs 301 will drive the auxiliary disk 311, causing the auxiliary disk 311 to rotate on the surface of multiple balls. The three sliding grooves 213 are internally connected to spring pieces 312, and the sidewalls of the spring pieces 312 are provided with annular protrusions; The spring piece 312 will be inserted into the corresponding sliding groove 213 on the three cutting rings 211. At this time, the spring piece 312 will be inside the three cutting rings 211. By inserting the spring piece 312 between the three cutting rings 211, the three cutting rings 211 can be in a single structure when they are not squeezed by the material, thereby reducing the resonance of the three cutting rings 211 when they rotate with the connecting shaft 121.

[0033] In use, the drive motor 112 is started. When the drive motor 112 is working, it drives the connecting shaft 121 connected to it to rotate through the belt and coupling 111. At this time, the two connecting shafts 121 inside the crushing chamber 101 will rotate relative to each other. During the rotation of the connecting shafts 121, the cutter head 122 will rotate synchronously. Then, the waste polyurethane balloons are poured into the crushing chamber 101. At this time, the two relatively rotating connecting shafts 121 will drive the cutter head 122 to tear and crush the waste balloons. Subsequently, the crushed waste balloon fragments will be discharged out through the discharge box 102, realizing the recycling and reuse of the crushed waste polyurethane balloons.

[0034] When the two connecting shafts 121 drive the cutter head 122 to rotate relative to each other, the three cutting rings 211 on the side wall of the cutter head 122 will be pushed tightly against the side wall of the adjacent cutter head 122 by the elastic push of the return spring 201, and form multiple annular spacers between the two cutter heads 122. When the balloon slides into the space between the two cutter heads 122 due to the relative push of the two cutter heads 122 during the breaking process, the three cutting rings 211 will block the balloon that has slid into the space between the two cutter heads 122, preventing the balloon from rushing towards and wrapping around the surface of the connecting shaft 121. At the same time, when the relative rotation of the two cutter heads 122 breaks the balloon, the stuck balloon will be stuck between the cutter head 122 and the three cutting rings 211 under the push of the cutter head 122. At this time, the stuck material will apply radial extrusion force to the three cutting rings 211 under the push of the cutter head 122, causing the three cutting rings 211 to slide inside the second annular groove 124 and present a stepped staggered arrangement. At this time, the three cutting rings 211 will cut the stuck balloon under the continuous outward elastic extrusion force of the return spring 201, preventing the balloon from forming a long film. At the same time, when the cutter discs 122 on the two connecting shafts 121 rotate relative to each other, the three cutting rings 211 will rotate synchronously with the cutter discs 122. At this time, the beveled edge of the cutting ring 211 will be misaligned relative to the side of the adjacent cutter disc 122, which can scrape off the balloon fragments remaining between the two cutter discs 122. This can reduce the situation where waste polyurethane balloons form long strips of film during the crushing process, bypass the cutting edge of the cutter disc 122, slide into the space between the two cutter discs 122, and accumulate on the surface of the connecting shaft 121, ensuring the crushing efficiency of the balloon and improving the uniformity of the balloon fragments after crushing.

[0035] When the first cutting ring 211 slides within the second annular groove 124 after being pushed by the material, the cutting ring 211 drives the L-ring 212 to slide synchronously. The L-ring 212 stretches multiple connecting springs 301. Since the multiple connecting springs 301 are inclined between the L-ring 212 and the auxiliary disk 311, when the multiple connecting springs 301 are stretched, they will form an oblique pull on the auxiliary disk 311, causing the auxiliary disk 311 to rotate in the opposite direction to the cutter disc 122 on the surface of multiple balls. At this time, during the rotation, the auxiliary disk 311 will generate a kneading force on the material that has slid between the two cutter discs 122, causing the material to accumulate into a larger strip, so that the material can be cut by the cutting ring 211 better and will not slip out during the cutting process. At the same time, when the cutting ring 211 stretches the multiple connecting springs 301 through the L-ring 212, the cutting ring 211 will also be subjected to the contraction tension of the multiple connecting springs 301, thereby ensuring the cutting strength when cutting the material.

[0036] When the three cutting rings 211 slide to different degrees under the push of the material and present a stepped staggered state, the cutting rings 211 will slide on the surface of the spring plate 312 and push the spring plate 312 to bend with the sliding of the cutting rings 211. During the sliding of the cutting rings 211 on the surface of the spring plate 312, the recessed groove on the inner wall of the sliding groove 213 will be restricted by the annular protrusion on the spring plate 312, which will drive the other cutting rings 211 to slide, so that the material can effectively slide into the other cutting rings 211 and be cut by the cutting rings 211. When the multiple cutting rings 211 are not pushed by the material, the spring plate 312 can keep the three cutting rings 211 in a whole structure, thereby reducing the reciprocating resonance and impact on the side wall of the adjacent cutter plate 122 caused by the action of the return spring 201 during the rotation of the three cutting rings 211 with the cutter plate 122, ensuring the integrity of the cutting edge of the cutter plate 122, and improving the continuity and effectiveness of the cutting rings 211 in blocking and cutting the material.

[0037] When the spring piece 312 bends between the three cutting rings 211 as they slide, it can form a gap between them, reducing the likelihood of material fragments getting stuck between two cutting rings 211 and inside the cutting ring 211 and the second annular groove 124 during the material blocking and cutting process. This ensures stable misalignment and sliding between the three cutting rings 211. Furthermore, when the three cutting rings 211 reset, the spring piece 312 can maintain consistency after reset through its elasticity, further reducing material accumulation between the two cutter discs 122 and improving the stability of the cutting rings 211 in blocking material.

[0038] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A recycling device based on waste polyurethane balloons, comprising a main body (1), wherein a crushing chamber (101) is bolted to the top of the main body (1), and a discharge box (102) is fixedly connected to the bottom of the crushing chamber (101), characterized in that, Also includes: Elastic component (2), which is installed inside the crushing chamber (101) to provide elastic support and cutting for the material during the crushing process, so as to prevent the material from entanglement; The elastic component (2) includes a plurality of return springs (201) disposed inside the crushing chamber (101), and a cutting ring (211) is fixedly connected to the end of the return spring (201). A limiting component (3) is installed on the side wall of the active component (21) to reduce the resonance of the active component (21).

2. The recycling equipment based on waste polyurethane balloons according to claim 1, characterized in that: The main body (1) includes: A drive assembly (11) is mounted on top of the main body (1); Crushing assembly (12), wherein the crushing assembly (12) is installed inside the crushing chamber (101); The drive component (11) can drive the crushing component (12) to rotate and crush the material.

3. The recycling equipment based on waste polyurethane balloons according to claim 2, characterized in that: The elastic component (2) also includes: The active component (21) is installed on the side wall of the cutting ring (211) for cutting and scraping off stuck materials.

4. The recycling equipment based on waste polyurethane balloons according to claim 3, characterized in that: The limiting component (3) also includes: An auxiliary component (31) is installed on the side wall of the cutting ring (211) to keep the three cutting rings (211) moving synchronously as a whole when the cutting ring (211) is not squeezed by the material.

5. The recycling equipment based on waste polyurethane balloons according to claim 4, characterized in that: The drive assembly (11) includes two couplings (111) fixedly connected to the top of the main body (1), and the two couplings (111) are symmetrically distributed with the crushing chamber (101) as the center; A drive motor (112) is provided at the bottom of the coupling (111), and the drive motor (112) is connected to the input end of the coupling (111) via a belt. The bottom of the drive motor (112) is fixedly connected to the bottom inner wall of the main body (1).

6. The recycling equipment based on waste polyurethane balloons according to claim 5, characterized in that: The crushing assembly (12) includes a connecting shaft (121) rotatably connected inside the crushing chamber (101), and the connecting shaft (121) rotatably extends through the side wall of the crushing chamber (101) away from the middle of the crushing chamber (101). The extension end of the connecting shaft (121) is sleeved on the output end of the coupling (111).

7. The recycling equipment based on waste polyurethane balloons according to claim 6, characterized in that: Several cutter discs (122) are slidably connected to the outer surface of the connecting shaft (121) located inside the crushing chamber (101). The cutter head (122) has a first annular groove (123) on its right side, and a number of balls are rotatably connected to the side wall of the first annular groove (123). The sidewall of the first annular groove (123) is provided with a second annular groove (124).

8. The recycling equipment based on waste polyurethane balloons according to claim 7, characterized in that: Several of the aforementioned return springs (201) are fixedly connected to the side wall of the second annular groove (124) in groups of three; The active component (21) includes an L-ring (212) fixedly connected to the side wall of the first cutting ring (211); The cutting ring (211) has three sliding grooves (213) inside, and the three sliding grooves (213) are arranged in a circular array with the middle part of the cutting ring (211) as the center. The sliding groove (213) has a recessed groove on its side wall.

9. A recycling device based on waste polyurethane balloons according to claim 8, characterized in that: The sidewall of the L-ring (212) is rotatably connected to a plurality of connecting springs (301), and the plurality of connecting springs (301) are arranged in a circular array with the cutting ring (211) as the center. The auxiliary component (31) includes an auxiliary disk (311) rotatably connected to one end of one of the connecting springs (301) away from the L-ring (212).

10. A recycling device based on waste polyurethane balloons according to claim 9, characterized in that: The auxiliary disk (311) is rotatably connected to the outer surface of several balls; The three sliding grooves (213) are internally connected to spring pieces (312), and the sidewalls of the spring pieces (312) are provided with annular protrusions.

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