Embossing machine for producing TPU (Thermoplastic Polyurethane) film by recovering plastic waste

Abstract

The invention relates to the field of film embossing machines, in particular to an embossing machine for producing a TPU film by recycling plastic waste, which comprises a film embossing machine, a mounting frame is arranged on the film embossing machine, a shaft rod is rotatably mounted on the mounting frame, a coupler is fixed at one end of the shaft rod, a servo motor is mounted on the film embossing machine, and the shaft rod is rotatably mounted on the mounting frame. An output shaft of the servo motor is connected with the end, away from the coupler, of the shaft rod, an embossing assembly is arranged on the film embossing machine, the embossing assembly is composed of a rotating structure and an embossing structure, the rotating structure comprises a rotating column, a cavity is formed in the rotating column, the embossing structure comprises a sleeve, and the sleeve is sleeved with the rotating column. The sleeve is arranged on the rotating column in a sleeving mode, and lines are arranged on the peripheral face of the sleeve. According to the invention, a vertical sleeve dismounting design and an inserting structure of the limiting strips / grooves are adopted, so that the sleeve can be quickly replaced, the pattern adjusting time is obviously shortened, and the production requirements of various TPU films are met.

Description

Technical Field

[0001] The present invention relates to the field of film embossing machines, and in particular to an embossing machine for recycling plastic waste to produce TPU films. Background Art

[0002] Recycling plastic waste to produce TPU film is a circular economy model that converts waste plastics into high-performance TPU film through a specific process. Its core lies in using resource recycling technology to convert plastic waste that may have polluted the environment into new materials with economic value, while reducing dependence on virgin petroleum resources.

[0003] During the processing of TPU film made of plastic waste, an embossing machine is required to emboss the surface of the film with a pattern. After searching, the Chinese patent with the announcement number CN208646169U discloses a new film embossing machine, which includes: a frame, a feeding roller and a receiving roller are respectively provided on opposite sides of the frame; an upper embossing assembly arranged on the frame, the upper embossing assembly includes: an upper hot pressing roller rotatably connected to the frame for rolling the pattern on the upper surface of the film to be processed, and a first rubber roller; and a lower embossing assembly arranged on the frame, the lower embossing assembly includes: a lower hot pressing roller rotatably connected to the frame for rolling the pattern on the lower surface of the film to be processed, and a second rubber roller. When rolling the pattern, the film to be processed is heated at the upper hot pressing roller and the lower hot pressing roller respectively, and the part of the film to be processed between the upper hot pressing roller and the lower hot pressing roller will cool naturally, thereby reducing the occurrence of overheating and deformation of the film to be processed. However, the above scheme still has the following shortcomings when used in practice: The embossing machine proposed in the above scheme does not have the function of quickly replacing the pressing roller. First, the traditional disassembly and assembly method is time-consuming. Especially when dealing with multi-variety and small-batch orders, frequent replacement of pressing rollers will significantly extend the downtime, resulting in a decrease in equipment utilization, and indirectly increase the production cost of unit products. Secondly, manual operation relies on tools, and long-term disassembly and assembly can easily cause the pressing roller or bearings and other components to wear due to repeated force, and may even cause equipment failure due to operational errors, increasing the frequency of maintenance and spare parts consumption. Thirdly, the disassembly and assembly process requires the cooperation of multiple people or professional training, and the skills of the operators are relatively high. If there is insufficient personnel turnover or training, it is easy to bury safety hazards due to improper operation. At the same time, the complex process also limits the ability to respond quickly to emergency production tasks. Summary of the Invention

[0004] The purpose of the present invention is to provide an embossing machine for recycling plastic waste to produce TPU films.

[0005] To achieve this object, the present invention adopts the following technical solutions: Provided is an embossing machine for recycling plastic waste to produce TPU film, comprising a film embossing machine, the film embossing machine being provided with a mounting frame, a shaft being rotatably mounted on the mounting frame, a coupling being fixed to one end of the shaft, a servo motor being installed on the film embossing machine, an output shaft of the servo motor being connected to an end of the shaft away from the coupling; The film embossing machine is provided with an embossing assembly, which is composed of a rotating structure and an embossing structure. The rotating structure includes a rotating column, and a cavity is opened inside the rotating column. The embossing structure includes a sleeve, which is sleeved on the rotating column, and the outer circumference of the sleeve is provided with a pattern. Two limit bars arranged opposite to each other are fixed inside the sleeve, and a fixing assembly for fixing the sleeve is provided on the rotating column; The film embossing machine is provided with a liquid supply component and a pushing component, wherein the liquid supply component is used to drive the pushing component to operate, and the pushing component acts on the fixed component when operating; The film embossing machine is provided with a damping component, and the damping component acts on the liquid supply component.

[0006] Furthermore, the rotation structure also includes two limit grooves and two strip openings, the two limit grooves are both opened on the outer peripheral surface of the rotating column, and the two limit grooves are arranged opposite each other, the two strip openings are both opened on the outer peripheral surface of the rotating column, and the two strip openings are both connected to the cavity, and a compression strip is provided in the two strip openings, and an inclined surface is provided on the two compression strips, and the sides of the two compression strips are fixed with limit blocks, and the two limit blocks are both located inside the cavity.

[0007] Furthermore, when the sleeve is sleeved on the rotating column, the two limiting bars slide into the two limiting grooves respectively, and the inner ring of the sleeve fits with the outer surface of the rotating column.

[0008] Furthermore, the fixing assembly includes a first rotating shaft, a hole is opened at one end of the rotating column, the first rotating shaft passes through the hole, a slider is fixed to the end of the first rotating shaft located inside the cavity, the slider slides in the cavity, a push rod is fixed to the side of the slider, the push rod is located between the two clamping strips, and the push rod is arranged opposite to the inclined surface of the two clamping strips, the end of the first rotating shaft located outside the cavity is connected to the rotating column through a first spring, and a ball is provided at the end of the first shaft located outside the cavity.

[0009] Furthermore, a mounting seat is fixed to one end of the first rotating shaft outside the cavity, and a positioning seat adapted to the mounting seat is provided on the film embossing machine. When the rotating column is in a horizontal state, the mounting seat falls on the positioning seat.

[0010] Furthermore, the liquid supply component includes a first gear, a second rotating shaft and a liquid supply structure, the first gear is fixedly sleeved on the shaft, the second rotating shaft is rotatably installed on the film embossing machine, the second rotating shaft is fixedly sleeved with a second gear, and the second gear is engaged with the first gear, the second rotating shaft is fixedly sleeved with an eccentric wheel, the liquid supply structure is arranged inside the film embossing machine, and the liquid supply structure is arranged opposite the eccentric wheel.

[0011] Furthermore, the liquid supply structure includes a first sealing cylinder, the internal sealing sliding connection of the first sealing cylinder is connected to a first sliding plug, the first sliding plug and the first sealing cylinder are connected by a second spring, a first connecting rod is fixed to the side of the first sliding plug, the first connecting rod extends to the outside of the first sealing cylinder away from one end of the first sliding plug and is fixed with a push plate.

[0012] Furthermore, the pushing assembly includes a second sealing cylinder, in which a second sliding plug is sealingly and slidingly connected, the second sliding plug and the second sealing cylinder are connected by a third spring, a second connecting rod is fixed to the side of the second sliding plug, and the end of the second connecting rod away from the second sliding plug extends to the outside of the second sealing cylinder and is fixed with a fixing plate, the fixing plate is arranged opposite to the first rotating shaft, and the second sealing cylinder is connected to the first sealing cylinder through a connecting pipe.

[0013] Furthermore, the film embossing machine is provided with a liquid storage assembly, and the liquid storage assembly includes a third sealing cylinder, the third sealing cylinder is fixed inside the film embossing machine, the internal sealing sliding connection of the third sealing cylinder is connected to a third sliding plug, the side of the third sliding plug is fixed with a third connecting rod, the third connecting rod extends to the outside of the third sealing cylinder at one end away from the third sliding plug, and is fixed with a mounting plate, the mounting plate and the third sealing cylinder are connected by a fourth spring, and the third sealing cylinder is connected to the second sealing cylinder by a connecting pipe.

[0014] Furthermore, the damping assembly includes a frame and a damping plate. The frame is fixed on the film embossing machine. The damping plate is slidably set on the frame. The frame is provided with an arc-shaped spring sheet. The arc-shaped spring sheet is set to abut against the damping plate. The damping plate is arranged below the push plate, and the damping plate and the push plate are in contact with each other.

[0015] Beneficial effects of the present invention: 1. The vertical sleeve disassembly design and the limit bar / slot plug-in structure enable quick sleeve replacement, significantly shortening the pattern adjustment time and adapting to the production needs of various TPU films; 2. The eccentric wheel-hydraulic system is driven by gear transmission to convert the rotational motion into the radial clamping force of the compression strip. The sleeve is automatically locked during the embossing process, eliminating the risk of vibration during high-speed rotation. The compression mechanism is automatically released when the machine is shut down, and the sleeve can be unloaded without manual intervention, reducing the operating intensity. 3. The cooperation between the arc-shaped spring and the damping plate enables the push plate to slowly reset, avoiding sudden changes in the pressing force. Combined with the gear acceleration effect, continuous dynamic pressure is formed to ensure uniform embossing. 4. The third sealing cylinder serves as a hydraulic reserve unit to replenish oil under extreme working conditions, prevent the compression force from attenuating, and improve system reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings in the embodiments of the present invention.

[0017] Figure 1 Schematic diagram of the three-dimensional structure of the present invention Figure 1 ; Figure 2 is a schematic structural diagram of an embossed component; Figure 3 It is a structural diagram of the rotating column when it is erected; Figure 4 Schematic diagram of the cross-sectional structure of the embossed component Figure 1 ; Figure 5 for Figure 4 A magnified view of point A in the figure; Figure 6 for Figure 4 Enlarged view of point B in FIG. Figure 7 Schematic diagram of the cross-sectional structure of the embossed component Figure 2 ; Figure 8 for Figure 7 Enlarged view of point C in the figure; Figure 9 It is a structural diagram of the liquid supply component and the push component; Figure 10 Schematic diagram of the structure of the rotating column and sleeve.

[0018] In the picture: 1. Film embossing machine; 11. Mounting frame; 12. Shaft; 13. Coupling; 2. Servo motor; 31. Rotating column; 32. Cavity; 33. Limiting groove; 34. Strip opening; 35. Pressing strip; 36. Limiting block; 41. Sleeve; 42. Limiting strip; 51. First rotating shaft; 511. Ball bearing; 52. Mounting seat; 53. Slider; 54. Push rod; 55. First spring; 61. First gear; 62. Second rotating shaft; 63. Second gear; 64. Eccentric Heart wheel; 65, first sealing cylinder; 651, connecting pipe; 66, first sliding plug; 67, first connecting rod; 68, second spring; 69, push plate; 71, second sealing cylinder; 72, second sliding plug; 73, second connecting rod; 74, third spring; 75, fixing plate; 81, third sealing cylinder; 82, third sliding plug; 83, third connecting rod; 84, mounting plate; 85, fourth spring; 86, connecting pipe; 91, frame; 92, damping plate; 93, arc-shaped spring piece. DETAILED DESCRIPTION

[0019] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0020] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product.

[0021] The present invention provides a technical solution, referring to Figures 1 to 10 As shown, an embossing machine for recycling plastic waste to produce TPU film includes a film embossing machine 1, a mounting frame 11 is provided on the film embossing machine 1, a shaft 12 is rotatably mounted on the mounting frame 11, a coupling 13 is fixed to one end of the shaft 12, and a servo motor 2 is installed on the film embossing machine 1, and the output shaft of the servo motor 2 is connected to the end of the shaft 12 away from the coupling 13; The film embossing machine 1 is provided with an embossing assembly, which consists of a rotating structure and an embossing structure. The rotating structure includes a rotating column 31, and a cavity 32 is opened inside the rotating column 31. The rotating structure also includes two limiting grooves 33 and two strip openings 34. The two limiting grooves 33 are both opened on the outer peripheral surface of the rotating column 31, and the two limiting grooves 33 are arranged opposite to each other. The two strip openings 34 are both opened on the outer peripheral surface of the rotating column 31, and the two strip openings 34 are connected with the cavity 32. A pressing strip 35 is provided in the two strip openings 34, and the two pressing strips 35 are both provided with an inclined surface. The side surfaces of the two pressing strips 35 are fixed with limiting blocks 36, and the two limiting blocks 36 are both located inside the cavity 32. When the sleeve 41 is sleeved on the rotating column 31, the two limiting strips 42 slide into the two limiting grooves 33 respectively, and the inner ring of the sleeve 41 fits with the outer surface of the rotating column 31; The embossed structure includes a sleeve 41, which is sleeved on the rotating column 31, and the outer peripheral surface of the sleeve 41 is provided with lines, and two limiting strips 42 arranged opposite to each other are fixed inside the sleeve 41; The rotating column 31 is provided with a fixing assembly for fixing the sleeve 41, and the fixing assembly includes a first rotating shaft 51. A hole is opened at one end of the rotating column 31, and the first rotating shaft 51 passes through the hole. A slider 53 is fixed to one end of the first rotating shaft 51 located inside the cavity 32. The slider 53 slides in the cavity 32. A push rod 54 is fixed to the side of the slider 53. The push rod 54 is located between the two pressing strips 35, and the push rod 54 is arranged opposite to the inclined surface of the two pressing strips 35. The end of the first rotating shaft 51 located outside the cavity 32 is fixed to the rotating column 31. The columns 31 are connected by a first spring 55. A ball 511 is provided at one end of the first shaft 12 outside the cavity 32. It is worth noting that the provision of the ball 511 can reduce the friction between the fixed plate 75 and the first rotating shaft 51, thereby avoiding unnecessary wear between the two. A mounting seat 52 is fixed to one end of the first rotating shaft 51 outside the cavity 32. A positioning seat adapted to the mounting seat 52 is provided on the film embossing machine 1. When the rotating column 31 is in a horizontal state, the mounting seat 52 falls on the positioning seat. The film embossing machine 1 is provided with a liquid supply component and a pushing component. The liquid supply component is used to drive the pushing component to operate. The liquid supply component includes a first gear 61, a second rotating shaft 62 and a liquid supply structure. The first gear 61 is fixedly sleeved on the shaft 12, and the second rotating shaft 62 is rotatably installed on the film embossing machine 1. A second gear 63 is fixedly sleeved on the second rotating shaft 62, and the second gear 63 is meshed with the first gear 61. An eccentric wheel 64 is fixedly sleeved on the second rotating shaft 62. The liquid supply structure is arranged inside the film embossing machine 1, and the liquid supply structure is arranged opposite to the eccentric wheel 64. The liquid supply structure includes a first sealing cylinder 65. The interior of the first sealing cylinder 65 is sealingly and slidingly connected to a first sliding plug 66. The first sliding plug 66 and the first sealing cylinder 65 are connected by a second spring 68. A first connecting rod 67 is fixed to the side of the first sliding plug 66. The end of the first connecting rod 67 away from the first sliding plug 66 extends to the outside of the first sealing cylinder 65 and is fixed with a push plate 69. When the pushing assembly is in operation, it acts on the fixing assembly. The pushing assembly includes a second sealing cylinder 71. A second sliding plug 72 is sealingly and slidingly connected to the second sealing cylinder 71. The second sliding plug 72 and the second sealing cylinder 71 are connected by a third spring 74. A second connecting rod 73 is fixed to the side of the second sliding plug 72. The end of the second connecting rod 73 away from the second sliding plug 72 extends to the outside of the second sealing cylinder 71 and is fixed to a fixing plate 75. The fixing plate 75 is arranged opposite the first rotating shaft 51. The second sealing cylinder 71 and the first sealing cylinder 65 are connected by a connecting pipe 651. The TPU film embossing machine proposed in the present invention has the function of quickly replacing the pressing roller. Specifically, in the initial state, Figure 1 As shown, the rotating column 31 and the sleeve 41 are both in a horizontal state, and the outer peripheral surface of the sleeve 41 is provided with a texture, and the sleeve 41 embosses the TPU film. In this state, the mounting seat 52 falls on the positioning seat, and the mounting seat 52 and the positioning seat are fixedly connected. When the pattern on the TPU film needs to be adjusted, the staff can replace the sleeve 41. First, the staff releases the connection between the mounting seat 52 and the positioning seat, and then controls the rotating column 31 to rotate so that the rotating column 31 stands up, forming a Figure 4 In the state shown, the staff then directly pulls off the sleeve 41 from the rotating column 31 and installs the sleeve 41 with other patterns on the rotating column 31. The inner surface of the sleeve 41 is provided with two limit strips 42, and the rotating column 31 is provided with two limit grooves 33. When installing the sleeve 41, the staff aligns the two limit strips 42 with the two limit grooves 33 respectively, and then sleeves the sleeve 41 on the rotating column 31. The arrangement of the two limit strips 42 and the two limit grooves 33 not only enables the rotating column 31 to drive the sleeve 41 to rotate, but also ensures the stability of the connection between the rotating column 31 and the sleeve 41. After installing the sleeve 41, the staff flattens the rotating column 31 until the rotating column 31 and the sleeve 41 return to their initial state again; When the TPU film is embossed, the servo motor 2 runs and drives the shaft 12 to rotate. When the shaft 12 rotates, the rotating column 31 can be driven to rotate through the coupling 13, and finally the sleeve 41 is rotated. The sleeve 41 can emboss the TPU film during the rotation process. At the same time, the shaft 12 can also drive the first gear 61 to rotate. When the first gear 61 rotates, it drives the second gear 63 engaged with it to rotate, thereby rotating the second shaft 12. Figure 9 As shown, when the second shaft 12 rotates, the eccentric wheel 64 thereon rotates accordingly. The eccentric wheel 64 can squeeze the push plate 69 when rotating. When the push plate 69 is squeezed by the eccentric wheel 64, the push plate 69 can drive the first sliding plug 66 to move through the first connecting rod 67. When the first sliding plug 66 moves, the oil in the first sealing cylinder 65 can be pressed into the second sealing cylinder 71 through the connecting pipe 651, thereby causing the oil to push the second sliding plug 72 to move. When the second sliding plug 72 moves, it can be driven by the second connecting rod 73. The fixing plate 75 moves. When the fixing plate 75 moves, the fixing plate 75 pushes the first shaft 12 through the ball bearing 511, so that the first shaft 12 drives the slider 53 to move. When the slider 53 moves, it drives the push rod 54 to move. When the push rod 54 moves, the push rod 54 pushes the inclined surfaces of the two pressing strips 35, so that the two pressing strips 35 move synchronously and away from each other. When the two pressing strips 35 move away from each other, the two pressing strips 35 can jointly press against the sleeve 41, thereby fixing the sleeve 41. Based on the above process, when the servo motor 2 drives the sleeve 41 to rotate, the sleeve 41 can be fixed by the two pressing strips 35 to ensure the stability of the sleeve 41 on the rotating column 31, thereby ensuring the embossing effect of the sleeve 41 on the TPU film. When the sleeve 41 stops rotating, the first sliding plug 66 and the second sliding plug 72 will be reset under the action of the corresponding springs, and the slider 53 and the push rod 54 will also be reset under the action of the first spring 55. At this time, the two pressing strips 35 no longer press against the sleeve 41, making it convenient for the staff to quickly remove the sleeve 41 from the rotating column 31, thereby facilitating the staff to replace the sleeve 41 with a different pattern. The film embossing machine 1 is provided with a liquid storage assembly, which includes a third sealing cylinder 81. The third sealing cylinder 81 is fixed inside the film embossing machine 1. The interior of the third sealing cylinder 81 is sealingly and slidingly connected to a third sliding plug 82. A third connecting rod 83 is fixed to the side of the third sliding plug 82. The end of the third connecting rod 83 away from the third sliding plug 82 extends to the outside of the third sealing cylinder 81 and is fixed with a mounting plate 84. The mounting plate 84 is connected to the third sealing cylinder 81 by a fourth spring 85. The third sealing cylinder 81 is connected to the second sealing cylinder 71 by a connecting pipe 86. In order to further improve the compression effect of the two compression strips 35 on the sleeve 41, the present invention is provided with a liquid storage component. In the process of the oil in the first sealing cylinder 65 being pushed into the second sealing cylinder 71, when the second sliding plug 72 moves to the limit position, the excess oil will enter the third sealing cylinder 81 through the connecting pipe 86 and push the third sliding plug 82 to move. When the first sliding plug 66 is pushed to the limit position, the oil will fill the second sealing cylinder 71 and the third sealing cylinder 81. In this case, even if the first sliding plug 66 is slightly reset under the action of the second spring 68, the oil in the third sealing cylinder 81 will be replenished into the second sealing cylinder 71 in time, thereby ensuring that the fixing plate 75 is always in a state of pushing the first rotating shaft 51, thereby ensuring the compression effect of the two compression strips 35 on the sleeve 41; The film embossing machine 1 is provided with a damping assembly, which acts on the liquid supply assembly. The damping assembly includes a frame 91 and a damping plate 92. The frame 91 is fixed to the film embossing machine 1. The damping plate 92 is slidably arranged on the frame 91. The frame 91 is provided with an arc-shaped spring piece 93, which is arranged to abut against the damping plate 92. The damping plate 92 is arranged below the push plate 69, and the damping plate 92 is in contact with the push plate 69. In order to enable the fixing plate 75 to continuously push the first rotating shaft 51 and ensure the fixing effect of the two clamping strips 35 on the sleeve 41, the present invention provides a damping assembly. Specifically, under the elastic force of the arc-shaped spring piece 93, the damping plate 92 always has a tendency to press against the push plate 69. During the movement of the push plate 69, the thrust from the damping plate 92 can overcome part of the elastic force from the second spring 68, so that the push plate 69 can be slowly reset rather than quickly reset. Furthermore, the transmission of the first gear 61 and the second gear 63 can accelerate the rotation speed of the shaft 12, which enables the second rotating shaft 62 and the eccentric wheel 64 to rotate quickly. The rapid rotation of the eccentric wheel 64 combined with the resistance of the damping plate 92 enables the first sliding plug 66 to always remain in a pushed state, thereby enabling the two clamping strips 35 to always be in a state of clamping the sleeve 41.

Claims

1. An embossing machine for recycling plastic waste to produce TPU film, characterized in that: The invention comprises a film embossing machine (1), wherein a mounting frame (11) is provided on the film embossing machine (1), a shaft (12) is rotatably mounted on the mounting frame (11), a coupling (13) is fixed to one end of the shaft (12), a servo motor (2) is mounted on the film embossing machine (1), and an output shaft of the servo motor (2) is connected to an end of the shaft (12) away from the coupling (13); The film embossing machine (1) is provided with an embossing assembly, which is composed of a rotating structure and an embossing structure. The rotating structure includes a rotating column (31), and a cavity (32) is provided inside the rotating column (31). The embossing structure includes a sleeve (41), which is sleeved on the rotating column (31), and the outer peripheral surface of the sleeve (41) is provided with a pattern. Two limiting strips (42) arranged opposite to each other are fixed inside the sleeve (41), and a fixing assembly for fixing the sleeve (41) is provided on the rotating column (31); The film embossing machine (1) is provided with a liquid supply component and a pushing component, wherein the liquid supply component is used to drive the pushing component to operate, and the pushing component acts on the fixed component when operating; The film embossing machine (1) is provided with a damping component, and the damping component acts on the liquid supply component.

2. The embossing machine for recycling plastic waste into TPU film according to claim 1, characterized in that: The rotating structure further comprises two limiting grooves (33) and two strip-shaped openings (34). The two limiting grooves (33) are both provided on the outer peripheral surface of the rotating column (31), and the two limiting grooves (33) are arranged opposite to each other. The two strip-shaped openings (34) are both provided on the outer peripheral surface of the rotating column (31), and the two strip-shaped openings (34) are both communicated with the cavity (32). A pressing strip (35) is provided in each of the two strip-shaped openings (34), and an inclined surface is provided on each of the two pressing strips (35). A limiting block (36) is fixed on the side surface of each of the two pressing strips (35), and the two limiting blocks (36) are both located inside the cavity (32).

3. The embossing machine for recycling plastic waste into TPU film according to claim 2, characterized in that: When the sleeve (41) is sleeved on the rotating column (31), the two limiting bars (42) slide into the two limiting grooves (33) respectively, and the inner ring of the sleeve (41) fits the outer surface of the rotating column (31).

4. The embossing machine for recycling plastic waste into TPU film according to claim 3, characterized in that: The fixing assembly includes a first rotating shaft (51), a hole is formed at one end of the rotating column (31), the first rotating shaft (51) passes through the hole, a slider (53) is fixed to one end of the first rotating shaft (51) located inside the cavity (32), the slider (53) slides in the cavity (32), a push rod (54) is fixed to the side of the slider (53), the push rod (54) is located between the two pressing strips (35), and the push rod (54) is arranged opposite to the inclined surface of the two pressing strips (35), the end of the first rotating shaft (51) located outside the cavity (32) is connected to the rotating column (31) through a first spring (55), and a ball (511) is provided at one end of the first shaft (12) located outside the cavity (32).

5. The embossing machine for recycling plastic waste into TPU film according to claim 4, characterized in that: A mounting seat (52) is fixed to one end of the first rotating shaft (51) located outside the cavity (32), and a positioning seat adapted to the mounting seat (52) is provided on the film embossing machine (1). When the rotating column (31) is in a horizontal state, the mounting seat (52) falls on the positioning seat.

6. The embossing machine for recycling plastic waste into TPU films according to claim 5, characterized in that: The liquid supply assembly comprises a first gear (61), a second rotating shaft (62) and a liquid supply structure, wherein the first gear (61) is fixedly sleeved on the shaft (12), the second rotating shaft (62) is rotatably mounted on the film embossing machine (1), a second gear (63) is fixedly sleeved on the second rotating shaft (62), and the second gear (63) is meshed with the first gear (61), an eccentric wheel (64) is fixedly sleeved on the second rotating shaft (62), and the liquid supply structure is arranged inside the film embossing machine (1), and the liquid supply structure is arranged opposite to the eccentric wheel (64).

7. The embossing machine for recycling plastic waste into TPU film according to claim 6, characterized in that: The liquid supply structure includes a first sealing cylinder (65), the interior of the first sealing cylinder (65) is sealed and slidably connected to a first sliding plug (66), the first sliding plug (66) and the first sealing cylinder (65) are connected via a second spring (68), a first connecting rod (67) is fixed to the side of the first sliding plug (66), and the first connecting rod (67) extends from one end of the first sliding plug (66) to the outside of the first sealing cylinder (65) and is fixed with a push plate (69).

8. The embossing machine for recycling plastic waste into TPU films according to claim 7, characterized in that: The pushing assembly includes a second sealing cylinder (71), a second sliding plug (72) is sealingly and slidingly connected inside the second sealing cylinder (71), the second sliding plug (72) and the second sealing cylinder (71) are connected via a third spring (74), a second connecting rod (73) is fixed to the side of the second sliding plug (72), an end of the second connecting rod (73) away from the second sliding plug (72) extends to the outside of the second sealing cylinder (71) and is fixed with a fixing plate (75), the fixing plate (75) is arranged opposite to the first rotating shaft (51), and the second sealing cylinder (71) and the first sealing cylinder (65) are connected via a connecting pipe (651).

9. The embossing machine for recycling plastic waste into TPU film according to claim 8, characterized in that: The film embossing machine (1) is provided with a liquid storage component, which includes a third sealing cylinder (81). The third sealing cylinder (81) is fixed inside the film embossing machine (1). The interior of the third sealing cylinder (81) is sealed and slidably connected to a third sliding plug (82). A third connecting rod (83) is fixed to the side of the third sliding plug (82). The third connecting rod (83) extends from one end of the third sliding plug (82) to the outside of the third sealing cylinder (81) and is fixed with a mounting plate (84). The mounting plate (84) is connected to the third sealing cylinder (81) through a fourth spring (85). The third sealing cylinder (81) and the second sealing cylinder (71) are connected through a connecting pipe (86).

10. The embossing machine for recycling plastic waste into TPU films according to claim 7, characterized in that: The damping assembly includes a frame (91) and a damping plate (92), wherein the frame (91) is fixed on the film embossing machine (1), and the damping plate (92) is slidably arranged on the frame (91), and an arc-shaped spring piece (93) is arranged on the frame (91), and the arc-shaped spring piece (93) is arranged to abut against the damping plate (92), and the damping plate (92) is arranged below the push plate (69), and the damping plate (92) and the push plate (69) are in contact with each other.

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