A foam processing and crushing device

Abstract

The present invention belongs to the field of plastic foam processing and crushing technology, and in particular to a foam processing and crushing device. In view of the fact that the existing foam crushing devices proposed in the background technology mostly adopt a single-stage crushing structure, which has the problems of low efficiency, uneven crushing particles, high energy consumption, etc., the following scheme is proposed, including a machine body, wherein the internal ends of the machine body are respectively provided with a pushing chamber and a foam plate crushing chamber, and the interior of the machine body is provided with a foam pre-crushing mechanism, and a connecting rod is provided on the outer wall of the foam pre-crushing mechanism, and the outer wall of one end of the connecting rod is provided with a foam secondary crushing mechanism. The present invention solves the problems of low efficiency, high energy consumption, and easy clogging of traditional equipment through innovative designs such as double-stage crushing, linked feeding, negative pressure conveying, and gradually shrinking crushing gap. While improving the crushing uniformity and processing efficiency, it achieves the comprehensive performance of compact structure and stable operation, and is suitable for various plastic foam recycling scenarios.

Description

Technical Field

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

[0002] Plastic foam is a type of polymer material composed of numerous gas micropores dispersed within a solid plastic. It offers lightweight, thermally insulating, sound-absorbing, and shock-absorbing properties, and its dielectric properties surpass those of the base resin, making it widely applicable. Plastic foam can be categorized as closed-cell, open-cell, and reticulated. Closed-cell foams have nearly all their cells disconnected, while open-cell foams have nearly all their cells connected. Reticulated foams have virtually no cell walls.

[0003] Foam materials are widely used in packaging, construction, and other fields, but their disposal remains a technical challenge. Existing foam crushing devices often use a single-stage crushing structure, which presents problems such as low efficiency, uneven crushing, and high energy consumption.

[0004] For example, traditional crushers use only a single cut with rotating blades, leaving large chunks of foam behind and requiring secondary processing. Some equipment utilizes a multi-stage cascade structure, but this is associated with bulk, high cost, and complex maintenance. Furthermore, the feeding process is prone to blockage, hindering continuous operation. Therefore, a highly efficient, energy-saving, and compact two-stage crushing device is urgently needed to improve foam recovery efficiency. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a foam processing and crushing device, which solves the problems of low efficiency, high energy consumption, and easy clogging of traditional equipment through innovative designs such as two-stage crushing, linked feeding, negative pressure conveying and gradually shrinking crushing gap. While improving the crushing uniformity and processing efficiency, it achieves the comprehensive performance of compact structure and stable operation, which is suitable for various plastic foam recycling scenarios to solve the problems raised in the above background technology.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A foam processing and crushing device comprises a body, wherein a pushing chamber and a foam plate crushing chamber are respectively provided at both ends of the body, a foam pre-crushing mechanism is provided inside the body, a connecting rod is provided on the outer wall of the foam pre-crushing mechanism, and a foam secondary crushing mechanism is provided on the outer wall of one end of the connecting rod;

[0008] Through the above scheme, a two-stage crushing design combining pre-crushing and secondary crushing is adopted, which can not only cut the foam in multiple dimensions to form uniform fragments, but also perform secondary extrusion and shearing on the fragments, significantly improving the crushing efficiency, and ultimately obtaining powder with uniform particle size, avoiding the problem of residual large pieces caused by traditional single-stage crushing, and having the advantages of efficient two-stage crushing and improved processing efficiency.

[0009] The foam pre-crushing mechanism includes a first servo motor, a worm, a reciprocating screw, a worm gear, a pre-crushing assembly, an internal threaded plate, a pushing piece, and an oblique material baffle plate, wherein the first servo motor is fixedly connected to the outer wall of one side of the body by screws, the worm is fixedly connected to the output shaft of the first servo motor through a coupling, the reciprocating screw is welded to the outer wall of one end of the worm, the worm gear is meshed with the outer wall of one end of the worm, the pre-crushing assembly is rotatably connected to the inner wall of the foam board crushing chamber, and the axial rod of the pre-crushing assembly is fixedly connected to the inner wall of the worm gear, the internal threaded plate is screwed to the outer wall of the reciprocating screw, the pushing piece is welded to the outer wall of one end of the internal threaded plate, and the pushing piece is slidably connected to the inner wall of the pushing chamber, and the oblique material baffle plate is welded to the top outer wall of the pushing piece, wherein the pre-crushing assembly and the pushing piece are horizontally distributed inside the body, and the oblique material baffle plate is exposed at the top of the body.

[0010] With this solution, when the first servo motor is activated, the worm drives the worm gear, which in turn drives the pre-crushing assembly. Simultaneously, the reciprocating screw rotates, causing the internally threaded plate to drive the pusher to slide back and forth along the inner wall of the pusher chamber. The pusher's serrated block compresses the foam material during this reciprocating motion, while the diagonal material retaining plate slides synchronously to control the opening and closing of the feed port.

[0011] Preferably, the foam secondary crushing mechanism includes a foam conveying pipe, a pushing piece, a buffer, an air supply pipe, a blower, a secondary crushing assembly, a storage tank, a second servo motor, and a rotating rod, wherein one end of the foam conveying pipe is connected to the bottom of the outer wall of one side of the foam board crushing chamber, the pushing piece is arranged on the outer wall of one end of the connecting rod, the buffer is arranged inside the foam conveying pipe, the air supply pipe is installed on the bottom outer wall of the foam conveying pipe, the blower is installed on the outer wall of one end of the air supply pipe, the secondary crushing assembly is arranged on the outer wall of the other end of the foam conveying pipe, the storage tank is arranged on the outer wall of the secondary crushing assembly, the second servo motor is fixedly connected to the outer wall of one side of the storage tank by screws, one end of the rotating rod is fixedly connected to the output shaft of the second servo motor through a coupling, and the other end of the rotating rod is installed on the outer wall of the secondary crushing assembly.

[0012] Through the above solution, the foam conveying pipe is assisted by the negative pressure generated by the negative pressure air duct and the blower to suck the material. Combined with the baffle and spring structure of the buffer part, it effectively prevents the crushed material from flowing back to the end of the push pipe, ensuring that the material is smoothly conveyed to the secondary crushing component and improving the stability of the system operation.

[0013] Preferably, the pre-crushing assembly includes a crushing roller, a connecting plate, a transverse slitting knife, and a vertical slitting knife, wherein the crushing roller is rotatably connected to the inner wall of the foam board crushing chamber, the connecting plates distributed at equal distances are welded to the outer wall of the crushing roller, the transverse slitting knives distributed at equal distances are welded to the outer wall of the connecting plate, and the vertical slitting knife is arranged on the inner wall of the transverse slitting knife, wherein the transverse slitting knife and the vertical slitting knife are distributed perpendicular to each other.

[0014] Through the above scheme, the worm gear drives the crushing roller to rotate at high speed, the horizontal slitting knife cuts the foam board horizontally, and the vertical slitting knife further divides it longitudinally to form uniform fragments.

[0015] Preferably, the pushing member includes a pushing seat slidably connected to the inner wall of the pushing chamber, serrated blocks equidistantly distributed on the outer wall of one side of the pushing seat, and guide strips welded to the outer walls on both sides of the pushing seat.

[0016] With this solution, the reciprocating motion of the pusher is synchronized and controlled by a sliding connection between the inclined material retaining plate and the feed port. When the pusher retracts, the feed port opens, allowing material to enter the pusher chamber. When the pusher advances, the feed port closes, preventing material from splashing back. This design ensures continuous and uniform feeding, avoiding the blockage problems associated with traditional equipment caused by material accumulation or backflow.

[0017] Preferably, the foam conveying pipe includes a suction pipe connected to the outer wall of one side of the foam board crushing chamber, a pushing pipe fixedly connected to one end of the suction pipe, and a negative pressure air duct fixedly connected to the outer wall of the bottom of the pushing pipe.

[0018] Through the above solution, the foam crushed material enters the pushing pipe through the suction pipe, and the negative pressure air duct is connected to the blower to generate negative pressure to assist in suctioning the material.

[0019] Preferably, the pushing member includes a pushing rod slidably connected to the inner wall of one end of the pushing tube, and a pushing plate welded to the outer wall of one end of the pushing rod, wherein the pushing plate is slidably connected to the inner wall of the pushing tube.

[0020] Through the above solution, the push rod is driven by the connecting rod, and the push plate reciprocates in the push tube to push the crushed materials to the secondary crushing assembly.

[0021] Preferably, the buffer member includes a baffle slidably connected to the inner wall of the push tube and a spring fixedly connected between the baffle and the push tube, wherein when the spring is in a relaxed state, the baffle is located on the shorter side of the connection between the suction tube and the push tube.

[0022] With the above solution, the baffle of the buffer member can block the crushed materials under the action of the spring, preventing the crushed materials from flowing back to the end of the push pipe and causing blockage, thereby controlling the crushed materials to flow back into the suction pipe normally.

[0023] Preferably, the secondary crushing assembly includes a crushing cover welded to the outer wall of the other end of the push tube, a conical crushing disk fixedly connected to the outer wall of the other end of the rotating rod, and crushing blocks respectively arranged between the crushing cover and the conical crushing disk, wherein the conical crushing disk is arranged inside the crushing cover, and the gap between the conical crushing disk and the crushing cover gradually decreases.

[0024] With the above solution, the second servo motor drives the rotating rod to drive the conical crushing disk to rotate at high speed. As the gap between the conical crushing disk and the crushing cover gradually decreases, the crushing block can squeeze and shear the crushed material, and finally the powder falls into the storage tank.

[0025] Preferably, a feed frame is welded to the top outer wall of the body, and an inclined feed plate is welded to the top of the feed frame on the top outer wall of the body, a feed port is opened inside the feed frame on the top outer wall of the body, and the inclined baffle plate is slidably connected to the inner wall of the feed port.

[0026] Through the above solution, when the pushing member retreats, the oblique material baffle plate opens the feed port and the material enters the pushing chamber; when the pushing member advances, the material baffle plate closes to prevent the material from splashing back.

[0027] Preferably, guide grooves are provided on the inner walls on both sides of the pushing chamber, and the guide bars are slidably connected to the inner walls of the guide grooves. A sliding groove is provided on the outer wall on one side of the body, and the internal thread plate is slidably connected to the inner wall of the sliding groove. A sealing plate is welded on the outer wall on one side of the internal thread plate, and the size of the sealing plate is adapted to the size of the sliding groove.

[0028] Through the above solution, the guide bar of the push piece is embedded in the guide groove to ensure the linear motion of the push seat. The internal thread plate is slidably connected to the machine body through the slide groove, and a sealing plate is welded on the outside to prevent material leakage.

[0029] The beneficial effects of the present invention are:

[0030] 1. The foam processing and crushing device of the present invention adopts a dual-stage crushing design that combines pre-crushing and secondary crushing. The horizontal and vertical cutters of the pre-crushing component cut the foam in multiple dimensions to form uniform fragments. The secondary crushing component utilizes the gradually shrinking gap between the conical crushing disk and the crushing cover to perform secondary extrusion and shearing on the fragments, significantly improving the crushing efficiency and ultimately obtaining a powder with uniform particle size. This avoids the problem of residual large chunks caused by traditional single-stage crushing and has the advantages of efficient dual-stage crushing and improved processing efficiency.

[0031] 2. In the foam processing and crushing device of the present invention, the reciprocating motion of the pusher is synchronously controlled by a sliding connection between the oblique material baffle and the feed port. When the pusher retracts, the feed port opens, allowing material to enter the pushing chamber. When the pusher advances, the feed port closes to prevent material splashback. This design ensures continuous and uniform feeding, avoiding the blockage problem caused by material accumulation or backflow in traditional equipment.

[0032] 3. The foam processing and crushing device of the present invention, through the transmission design of the worm and worm gear, converts the rotational motion of the first servo motor into the rotation of the pre-crushing component and the reciprocating motion of the pushing member, realizing a single power source driving multiple mechanisms and reducing energy consumption. At the same time, the lateral distribution of the pushing chamber and the foam plate crushing chamber, as well as the compact design of the guide groove and sealing plate, optimize the space utilization of the device, making it suitable for small and medium-sized recycling scenarios.

[0033] 4. In the foam processing and crushing device of the present invention, the foam conveying pipe is assisted in sucking materials through the negative pressure generated by the negative pressure air duct and the blower. Combined with the baffle and spring structure of the buffer part, it effectively prevents the crushed materials from flowing back to the end of the pushing pipe, ensuring that the materials are smoothly conveyed to the secondary crushing component, thereby improving the stability of the system operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the overall structure of a foam processing and crushing device proposed by the present invention;

[0035] Figure 2 This is a schematic diagram of the overall structure of a foam processing and crushing device proposed by the present invention. Figure 2 ;

[0036] Figure 3 Schematic diagram of the internal connection structure of the foam processing and crushing device proposed by the present invention Figure 1 ;

[0037] Figure 4 Schematic diagram of the internal connection structure of the foam processing and crushing device proposed by the present invention Figure 2 ;

[0038] Figure 5 This is a schematic diagram of a foam pre-crushing mechanism of a foam processing and crushing device proposed by the present invention;

[0039] Figure 6 This is a schematic diagram of a pre-crushing component of a foam processing and crushing device proposed by the present invention;

[0040] Figure 7 This is a schematic diagram of the structure of a pusher of a foam processing and crushing device proposed by the present invention;

[0041] Figure 8 Schematic diagram of the foam secondary crushing mechanism of the foam processing and crushing device proposed by the present invention

[0042] Figure 9 Schematic diagram of a foam conveying pipe for a foam processing and crushing device proposed by the present invention

[0043] Figure 10Schematic diagram of the connection structure of the pusher and buffer member of the foam processing and crushing device proposed by the present invention

[0044] Figure 11 This is a schematic diagram of the secondary crushing component of the foam processing and crushing device proposed by the present invention.

[0045] In the figure: 1. Machine body; 2. Pushing chamber; 3. Foam plate crushing chamber; 4. Foam pre-crushing mechanism; 41. First servo motor; 42. Worm; 43. Reciprocating screw; 44. Worm gear; 45. Pre-crushing assembly; 451. Crushing roller; 452. Connecting plate; 453. Horizontal slitting blade; 454. Vertical slitting blade; 46. Internally threaded plate; 47. Pushing member; 471. Pushing seat; 472. Sawtooth block; 473. Guide bar; 48. Oblique material blocking plate; 5. Connecting rod; 6. Foam secondary crushing mechanism; 61. Foam conveying pipe; 611. Suction pipe; 612. Pushing pipe; 613. Negative pressure air duct; 62. Pushing member; 621. Pushing rod; 622. Pushing plate; 63. Buffer; 631. Baffle; 632. Spring; 64. Air supply pipe; 65. Blower; 66. Secondary crushing assembly; 661. Crushing cover; 662. Conical crushing plate; 663. Crushing block; 67. Storage tank; 68. Second servo motor; 69. Rotating rod; 7. Feed frame; 8. Oblique feed plate; 9. Feed port; 10. Guide groove; 11. Slide groove; 12. Sealing plate. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0047] Reference Figure 1-Figure 3 In an embodiment of the present invention, a foam processing and crushing device includes a body 1, wherein a pushing chamber 2 and a foam plate crushing chamber 3 are respectively provided at both ends of the body 1, and a foam pre-crushing mechanism 4 is provided inside the body 1, and a connecting rod 5 is provided on the outer wall of the foam pre-crushing mechanism 4, and a foam secondary crushing mechanism 6 is provided on the outer wall of one end of the connecting rod 5.

[0048] In this embodiment, the foam processing and crushing device comprises a body 1, wherein a pushing chamber 2 and a foam plate crushing chamber 3 are respectively provided at both ends thereof. The pushing chamber 2 and the foam plate crushing chamber 3 are linked together by a foam pre-crushing mechanism 4.

[0049] A two-stage crushing design combining pre-crushing and secondary crushing is adopted. The horizontal slitting knife 453 and the vertical slitting knife 454 of the pre-crushing component 45 are used to cut the foam in multiple dimensions to form uniform fragments. The secondary crushing component 66 uses the gradually shrinking gap between the conical crushing disk 662 and the crushing cover 661 to perform secondary extrusion and shearing on the fragments, which significantly improves the crushing efficiency and finally obtains powder with uniform particle size, avoiding the problem of residual large pieces caused by traditional single-stage crushing. It has the advantages of efficient two-stage crushing and improved processing efficiency.

[0050] Reference Figure 5 In an embodiment of the present invention, a foam processing and crushing device is provided. The foam pre-crushing mechanism 4 includes a first servo motor 41, a worm 42, a reciprocating screw 43, a worm gear 44, a pre-crushing assembly 45, an internal thread plate 46, a push piece 47, and an oblique material blocking plate 48. The first servo motor 41 is fixedly connected to the outer wall of one side of the machine body 1 by screws, the worm 42 is fixedly connected to the output shaft of the first servo motor 41 by a coupling, the reciprocating screw 43 is welded to the outer wall of one end of the worm 42, and the worm gear 44 is engaged with the outer wall of one end of the worm 42. The pre-crushing assembly 45 is rotatably connected to the inner wall of the foam board crushing chamber 3, and the axis rod of the pre-crushing assembly 45 is fixedly connected to the inner wall of the worm gear 44, the internal threaded plate 46 is screwed to the outer wall of the reciprocating screw 43, the pushing piece 47 is welded to the outer wall of one end of the internal threaded plate 46, and the pushing piece 47 is slidably connected to the inner wall of the pushing chamber 2, and the oblique baffle plate 48 is welded to the top outer wall of the pushing piece 47, wherein the pre-crushing assembly 45 and the pushing piece 47 are horizontally distributed inside the body 1, and the oblique baffle plate 48 is exposed at the top of the body 1.

[0051] In this embodiment, through the transmission design of the worm 42 and the worm wheel 44, the rotational motion of the first servo motor 41 is converted into the rotation of the pre-crushing component 45 and the reciprocating motion of the pushing member 47, so that a single power source drives multiple mechanisms and reduces energy consumption. At the same time, the lateral distribution of the pushing chamber 2 and the foam board crushing chamber 3, as well as the compact design of the guide groove 10 and the sealing plate 12, optimize the space utilization of the device, which is suitable for small and medium-sized recycling scenarios.

[0052] Power drive: A first servo motor 41 is screwed to one side of the machine body 1. Its output shaft is connected to a worm 42 via a coupling. A reciprocating screw 43 is welded to the end of the worm 42 and meshes with a worm gear 44. The axis of the worm gear 44 is fixedly connected to a pre-crushing assembly 45.

[0053] Reciprocating motion part: The reciprocating screw 43 is screwed with an internal thread plate 46, one end of which is welded with a push piece 47, which is slidably connected to the inner wall of the pushing chamber 2. The top of the push piece 47 is welded with an oblique material blocking plate 48, which is exposed at the feed port 9 on the top of the machine body 1.

[0054] The linkage relationship: After the first servo motor 41 is activated, the worm 42 drives the worm gear 44 to rotate, driving the pre-crushing assembly 45 to rotate. Simultaneously, the rotation of the reciprocating screw 43 causes the internally threaded plate 46 to drive the pusher 47 to slide back and forth along the inner wall of the pusher chamber 2. The serrated block 472 of the pusher 47 compresses the foam material during this reciprocating motion, and the inclined material retaining plate 48 slides synchronously to control the opening and closing of the feed port 9.

[0055] Reference Figure 8 In an embodiment of the present invention, a foam processing and crushing device is provided, wherein the foam secondary crushing mechanism 6 includes a foam conveying pipe 61, a pushing piece 62, a buffer piece 63, an air supply pipe 64, a blower 65, a secondary crushing assembly 66, a storage tank 67, a second servo motor 68, and a rotating rod 69. One end of the foam conveying pipe 61 is connected to the bottom of the outer wall of one side of the foam board crushing chamber 3, the pushing piece 62 is arranged on the outer wall of one end of the connecting rod 5, the buffer piece 63 is arranged inside the foam conveying pipe 61, and the air supply pipe 64 is arranged on the outer wall of the connecting rod 5. It is installed on the bottom outer wall of the foam conveying pipe 61, the blower 65 is installed on the outer wall of one end of the air supply pipe 64, the secondary crushing assembly 66 is arranged on the outer wall of the other end of the foam conveying pipe 61, the storage tank 67 is arranged on the outer wall of the secondary crushing assembly 66, the second servo motor 68 is fixedly connected to the outer wall of one side of the storage tank 67 by screws, one end of the rotating rod 69 is fixedly connected to the output shaft of the second servo motor 68 through a coupling, and the other end of the rotating rod 69 is installed on the outer wall of the secondary crushing assembly 66.

[0056] In this embodiment, the foam conveying pipe 61 assists in sucking the material through the negative pressure generated by the negative pressure air duct 613 and the blower 65, combined with the baffle 631 and spring 632 structure of the buffer component 63, effectively preventing the crushed material from flowing back to the end of the pushing pipe 612, ensuring that the material is smoothly conveyed to the secondary crushing component 66, and improving the stability of the system operation.

[0057] Reference Figure 6 In an embodiment of the present invention, the pre-crushing assembly 45 includes a crushing roller 451, a connecting plate 452, a horizontal slitting knife 453, and a vertical slitting knife 454, wherein the crushing roller 451 is rotatably connected to the inner wall of the foam board crushing chamber 3, the connecting plates 452 distributed at equal distances are all welded to the outer wall of the crushing roller 451, the horizontal slitting knives 453 distributed at equal distances are all welded to the outer wall of the connecting plate 452, and the vertical slitting knife 454 is arranged on the inner wall of the horizontal slitting knife 453, wherein the horizontal slitting knife 453 and the vertical slitting knife 454 are distributed perpendicular to each other.

[0058] In this embodiment, the crushing roller 451 is rotatably connected to the inner wall of the foam board crushing chamber 3 through a bearing, and a plurality of equidistantly distributed connecting plates 452 are welded on the surface of the crushing roller.

[0059] A transverse slitting knife 453 is welded to the outer wall of each connecting plate 452 , and a vertical slitting knife 454 is provided on the inner wall of the transverse slitting knife 453 , and the two are vertically distributed.

[0060] Working process: The worm gear 44 drives the crushing roller 451 to rotate at high speed, the horizontal slitting knife 453 cuts the foam board horizontally, and the vertical slitting knife 454 further splits it longitudinally to form uniform fragments.

[0061] Reference Figure 7 In an embodiment of the present invention, the pushing member 47 includes a pushing seat 471 slidably connected to the inner wall of the pushing chamber 2, serrated blocks 472 equidistantly distributed on the outer wall of one side of the pushing seat 471, and guide strips 473 welded to the outer walls on both sides of the pushing seat 471.

[0062] In this embodiment, the reciprocating motion of the pusher 47 is synchronized and controlled by a sliding connection between the oblique material retaining plate 48 and the feed port 9. When the pusher 47 retracts, the feed port 9 opens, allowing material to enter the pushing chamber 2. When the pusher 47 advances, the feed port 9 closes, preventing material from splashing back. This design ensures continuous and uniform feeding, avoiding the blockage problems caused by material accumulation or backflow in conventional equipment.

[0063] Reference Figure 9 In an embodiment of the present invention, the foam conveying pipe 61 includes a suction pipe 611 connected to the outer wall of one side of the foam board crushing chamber 3, a pushing pipe 612 fixedly connected to one end of the suction pipe 611, and a negative pressure air duct 613 fixedly connected to the outer wall of the bottom of the pushing pipe 612.

[0064] In this embodiment, material transportation: the foamed material enters the pushing pipe 612 through the suction pipe 611, and the negative pressure air pipe 613 is connected to the blower 65 to generate negative pressure to assist in the suction of the material.

[0065] Reference Figure 10 In an embodiment of the present invention, the pushing member 62 includes a pushing rod 621 slidably connected to the inner wall of one end of the pushing tube 612, and a pushing plate 622 welded to the outer wall of one end of the pushing rod 621, wherein the pushing plate 622 is slidably connected to the inner wall of the pushing tube 612.

[0066] In this embodiment, pushing and buffering: the pushing rod 621 is driven by the connecting rod 5, and the pushing plate 622 reciprocates in the pushing tube 612 to push the crushed materials to the secondary crushing assembly 66.

[0067] Reference Figure 10 In an embodiment of the present invention, the buffer member 63 includes a baffle 631 slidably connected to the inner wall of the pushing tube 612 and a spring 632 fixedly connected between the baffle 631 and the pushing tube 612, wherein when the spring 632 is in a relaxed state, the baffle 631 is located on the shorter side of the connection between the suction tube 611 and the pushing tube 612.

[0068] In this embodiment, the baffle 631 of the buffer member 63 can block the crushed materials under the action of the spring 632 to prevent the crushed materials from flowing back to the end of the pushing tube 612 and causing blockage, thereby controlling the crushed materials to flow back into the suction tube 611 normally.

[0069] Reference Figure 11 In an embodiment of the present invention, the secondary crushing assembly 66 includes a crushing cover 661 welded to the outer wall of the other end of the pushing tube 612, a conical crushing disk 662 fixedly connected to the outer wall of the other end of the rotating rod 69, and a crushing block 663 respectively arranged between the crushing cover 661 and the conical crushing disk 662, wherein the conical crushing disk 662 is arranged inside the crushing cover 661, and the gap between the conical crushing disk 662 and the crushing cover 661 gradually decreases.

[0070] In this embodiment, secondary crushing occurs when a second servo motor 68 drives a rotating rod 69 to rotate the conical crushing disk 662 at high speed. As the gap between the conical crushing disk 662 and the crushing cover 661 gradually decreases, the crushing blocks 663 can squeeze and shear the crushed material, and the powder eventually falls into the storage tank 67.

[0071] Reference Figure 1 、 Figure 4 In the embodiment of the present invention, a feed frame 7 is welded to the top outer wall of the body 1, and an inclined feed plate 8 is welded to the top of the feed frame 7 on the top outer wall of the body 1. A feed port 9 is opened on the inside of the feed frame 7 on the top outer wall of the body 1, and an inclined baffle plate 48 is slidably connected to the inner wall of the feed port 9.

[0072] In this embodiment, the feeding structure is as follows: a feeding frame 7 and an oblique feeding plate 8 are welded on the top of the machine body 1 , and the oblique feeding plate 8 guides the foam plate to slide into the feeding port 9 .

[0073] The inner wall of the feed port 9 is slidably connected to the oblique baffle plate 48. When the push member 47 retreats, the oblique baffle plate 48 opens the feed port 9 and the material enters the pushing chamber 2; when the push member 47 advances, the baffle plate closes to prevent the material from splashing back.

[0074] Linkage control logic: The reciprocating motion of the pusher 47 is completely synchronized with the opening and closing of the feed port 9, ensuring that the material enters the crushing process continuously and evenly.

[0075] Reference Figure 1 In this embodiment of the present invention, guide grooves 10 are provided on the inner walls on both sides of the pushing chamber 2, and the guide bars 473 are slidably connected to the inner walls of the guide grooves 10. A slide groove 11 is provided on the outer wall on one side of the body 1, and the internal thread plate 46 is slidably connected to the inner wall of the slide groove 11. A sealing plate 12 is welded to the outer wall on one side of the internal thread plate 46, and the size of the sealing plate 12 is adapted to the size of the slide groove 11.

[0076] In this embodiment, guide grooves 10 are formed on the inner walls of both sides of the pushing chamber 2 , and the guide strips 473 of the pushing member 47 are embedded in the guide grooves 10 to ensure that the pushing seat 471 moves linearly.

[0077] The internal thread plate 46 is slidably connected to the body 1 through the slide groove 11, and a sealing plate 12 is welded to the outer side thereof to prevent material leakage.

[0078] Working principle:

[0079] 1. Feeding and pre-crushing stage

[0080] The waste foam board slides into the feed frame 7 through the oblique feed plate 8 and enters the pushing chamber 2 through the feed port 9.

[0081] When the first servo motor 41 is started, the worm 42 engages with the worm gear 44 to drive the crushing roller 451 of the pre-crushing assembly 45 to rotate at high speed. At this time, the horizontal slitting blade 453 can cut the foam horizontally, while the vertical slitting blade 454 further divides the foam longitudinally to form uniformly sized pieces.

[0082] 2. Pushing and feeding linkage control

[0083] The reciprocating screw 43 at the end of the worm 42 drives the internally threaded plate 46 and the pusher 47 to reciprocate along the guide groove 10. As the serrated block 472 of the pusher seat 471 approaches the pre-crushing assembly 45, it squeezes the crushed material, forcing it tightly into the foam board crushing chamber 3. Furthermore, when the pusher 47 retreats, the oblique material retaining plate 48 moves with it to open the feed port 9, allowing new material to enter the machine body 1. When the pusher 47 advances, the material retaining plate closes, forming a closed-loop control system for continuous feeding and crushing.

[0084] 3. Material conveying and secondary crushing

[0085] After pre-crushing, the crushed material enters the pusher tube 612 through the suction tube 611. The negative pressure air duct 613 blows against the pusher tube 612, creating a negative pressure that assists in the suction of the material. Because the pusher rod 621 of the pusher 62 is driven by the connecting rod 5, the pusher plate 622 pushes the crushed material to the secondary crushing assembly 66. A second servo motor 68 drives the conical crushing plate 662 to rotate at high speed. The gradually shrinking gap between the conical crushing plate 662 and the crushing cover 661 causes the crushed material to undergo multiple stages of shearing and extrusion, ultimately reducing it to powder and dropping it into the storage tank 67. As the negative pressure air duct 613 blows repeatedly, the crushed powder foam is continuously discharged from the bottom of the storage tank 67.

[0086] 4. Anti-backflow and sealing design

[0087] Baffle 631 of buffer 63, under the action of spring 632, blocks the flow of crushed material back to the end of push tube 612, preventing the crushed material from flowing back to the end of push tube 612 and causing blockage, thereby controlling the normal flow of crushed material back into suction tube 611. The dimensional adaptation of sealing plate 12 and chute 11, as well as the close fit between guide bar 473 and guide groove 10, effectively prevent material leakage, ensuring the sealing and operational stability of the equipment.

[0088] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0089] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0090] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A foam processing and crushing device, comprising a body (1), characterized in that: The two ends of the interior of the machine body (1) are respectively provided with a pushing chamber (2) and a foam plate crushing chamber (3), and a foam pre-crushing mechanism (4) is provided inside the machine body (1), and a connecting rod (5) is provided on the outer wall of the foam pre-crushing mechanism (4), and a foam secondary crushing mechanism (6) is provided on the outer wall of one end of the connecting rod (5); The foam pre-crushing mechanism (4) comprises a first servo motor (41), a worm (42), a reciprocating screw (43), a worm wheel (44), a pre-crushing assembly (45), an internal thread plate (46), a push piece (47), and an oblique material blocking plate (48), wherein the first servo motor (41) is fixedly connected to an outer wall of one side of the machine body (1) by screws, the worm (42) is fixedly connected to the output shaft of the first servo motor (41) by a coupling, the reciprocating screw (43) is welded to an outer wall of one end of the worm (42), the worm wheel (44) is meshed with an outer wall of one end of the worm (42), and the pre-crushing assembly (45) is fixedly connected to an outer wall of one end of the worm (42). The pre-crushing assembly (45) is rotatably connected to the inner wall of the foam plate crushing chamber (3), and the axis rod of the pre-crushing assembly (45) is fixedly connected to the inner wall of the worm wheel (44), the inner thread plate (46) is screwed to the outer wall of the reciprocating screw (43), the pushing piece (47) is welded to the outer wall of one end of the inner thread plate (46), and the pushing piece (47) is slidably connected to the inner wall of the pushing chamber (2), and the oblique material blocking plate (48) is welded to the outer wall of the top of the pushing piece (47), wherein the pre-crushing assembly (45) and the pushing piece (47) are horizontally distributed inside the body (1), and the oblique material blocking plate (48) is exposed at the top of the body (1); The foam secondary crushing mechanism (6) includes a foam conveying pipe (61), a pushing piece (62), a buffer (63), an air supply pipe (64), a blower (65), a secondary crushing assembly (66), a storage tank (67), a second servo motor (68), and a rotating rod (69), wherein one end of the foam conveying pipe (61) is connected to the bottom of the outer wall of one side of the foam board crushing chamber (3), the pushing piece (62) is arranged on the outer wall of one end of the connecting rod (5), the buffer (63) is arranged inside the foam conveying pipe (61), and the air supply pipe (64) is installed on the foam conveying pipe (61). The blower (65) is mounted on the outer wall of the bottom of the pipe (61), the blower (65) is mounted on the outer wall of one end of the air supply pipe (64), the secondary crushing assembly (66) is arranged on the outer wall of the other end of the foam conveying pipe (61), the storage tank (67) is arranged on the outer wall of the secondary crushing assembly (66), the second servo motor (68) is fixedly connected to the outer wall of one side of the storage tank (67) by screws, one end of the rotating rod (69) is fixedly connected to the output shaft of the second servo motor (68) by a coupling, and the other end of the rotating rod (69) is mounted on the outer wall of the secondary crushing assembly (66).

2. A foam processing and crushing device according to claim 1, characterized in that: The pre-crushing assembly (45) comprises a crushing roller (451), a connecting plate (452), a transverse slitting knife (453), and a vertical slitting knife (454), wherein the crushing roller (451) is rotatably connected to the inner wall of the foam board crushing chamber (3), the connecting plates (452) distributed at equal distances are all welded to the outer wall of the crushing roller (451), the transverse slitting knives (453) distributed at equal distances are all welded to the outer wall of the connecting plate (452), and the vertical slitting knife (454) is arranged on the inner wall of the transverse slitting knife (453), wherein the transverse slitting knife (453) and the vertical slitting knife (454) are distributed perpendicular to each other.

3. A foam processing and breaking device according to claim 1, characterized in that: The pushing member (47) includes a pushing seat (471) slidably connected to the inner wall of the pushing chamber (2), sawtooth blocks (472) arranged on the outer wall of one side of the pushing seat (471) and distributed at equal distances, and guide strips (473) welded to the outer walls on both sides of the pushing seat (471).

4. A foam processing and breaking device according to claim 1, characterized in that: The foam conveying pipe (61) comprises a suction pipe (611) connected to the outer wall of one side of the foam plate crushing chamber (3), a pushing pipe (612) fixedly connected to one end of the suction pipe (611), and a negative pressure air duct (613) fixedly connected to the outer wall at the bottom of the pushing pipe (612).

5. A foam processing and breaking device according to claim 1, characterized in that: The pushing member (62) comprises a pushing rod (621) slidably connected to the inner wall of one end of the pushing tube (612), and a pushing plate (622) welded to the outer wall of one end of the pushing rod (621), wherein the pushing plate (622) is slidably connected to the inner wall of the pushing tube (612).

6. A foam processing and breaking device according to claim 1, characterized in that: The buffer member (63) includes a baffle (631) slidably connected to the inner wall of the push tube (612), and a spring (632) fixedly connected between the baffle (631) and the push tube (612), wherein when the spring (632) is in a relaxed state, the baffle (631) is located on the shorter side of the connection between the suction tube (611) and the push tube (612).

7. The foam processing and breaking device according to claim 1, characterized in that: The secondary crushing assembly (66) includes a crushing cover (661) welded to the outer wall of the other end of the push tube (612), a conical crushing disk (662) fixedly connected to the outer wall of the other end of the rotating rod (69), and a crushing block (663) respectively arranged between the crushing cover (661) and the conical crushing disk (662), wherein the conical crushing disk (662) is arranged inside the crushing cover (661), and the gap between the conical crushing disk (662) and the crushing cover (661) gradually decreases.

8. The foam processing and breaking device according to claim 1, characterized in that: A feed frame (7) is welded to the top outer wall of the machine body (1), and an oblique feed plate (8) is welded to the top of the feed frame (7). A feed port (9) is opened on the top outer wall of the machine body (1) and is located inside the feed frame (7), and an oblique baffle plate (48) is slidably connected to the inner wall of the feed port (9).

9. The foam processing and breaking device according to claim 1, characterized in that: The inner walls on both sides of the pushing chamber (2) are provided with guide grooves (10), and the guide strips (473) are slidably connected to the inner walls of the guide grooves (10). A sliding groove (11) is provided on the outer wall of one side of the body (1), and the internal thread plate (46) is slidably connected to the inner wall of the sliding groove (11). A sealing plate (12) is welded to the outer wall of one side of the internal thread plate (46), and the size of the sealing plate (12) is adapted to the size of the sliding groove (11).

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