A synthetic leather cutting device with a pressing and adjusting function

Abstract

The present invention relates to the technical field of synthetic leather processing, and discloses a synthetic leather cutting device with a pressing adjustment function, which includes a chassis. At both ends of the opposite side walls of the chassis, support legs are fixedly installed. A gantry is fixedly installed on the top of the chassis. A driving device is slidably arranged on the gantry. A notch is opened at one end of the bottom of the chassis away from the gantry. A set of conveyor belts and a conveying assembly are arranged inside the chassis. The conveying assembly includes a pressing roller, and the pressing roller is arranged above one end of the conveyor belt away from the trolley. A pressing adjustment mechanism includes a tool box and a rotating cylinder. The tool box is fixedly installed at the bottom of the driving device, and the rotating cylinder is arranged inside the tool box. Each time the tool advances or retracts in the present invention, the rotating cylinder will be driven to rotate, and then multiple groups of cutting tools inside it can move synchronously, realizing the tool changing action each time the tool advances or retracts, effectively preventing the situation that the tool bears too much load and affects the service life of the cutting tool.

Description

Technical Field

[0001] The present invention relates to the technical field of synthetic leather processing, and specifically to a synthetic leather cutting device with a pressing adjustment function. Background Art

[0002] Synthetic leather is a plastic product that simulates the composition and structure of natural leather and can be used as a substitute material. It is usually made with an impregnated non-woven fabric as the mesh layer and a microporous polyurethane layer as the grain layer. Its front and back sides are very similar to leather, have a certain breathability, and are closer to natural leather than ordinary artificial leather.

[0003] During the processing of synthetic leather, it is generally necessary to cut it into various required shapes. However, in the prior art when cutting synthetic leather, to improve work efficiency, multiple layers of synthetic leather are generally stacked together and cut simultaneously. However, due to the certain flexibility and strength of synthetic leather, during cutting, the cut surface may be uneven. Moreover, as the number of synthetic leather layers increases, the cutting resistance also increases, and the generated heat also increases, and it is difficult to discharge the heat, which may affect the performance of the cutting tool. Summary of the Invention

[0004] The purpose of the present invention is to provide a synthetic leather cutting device with a pressing adjustment function to solve the problems raised in the above background art.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a synthetic leather cutting device with a pressing adjustment function, including a machine case. At both ends of the opposite side walls of the machine case, support legs are fixedly installed. On the top of the machine case, a gantry is fixedly installed. A driving device is slidably arranged on the gantry. At one end of the bottom of the machine case away from the gantry, a notch is opened. Inside the machine case, a conveyor belt and a conveying assembly are arranged. The conveying assembly includes a pressing roller, which is arranged above the end of the conveyor belt away from the cart. A pressing adjustment mechanism includes a tool box and a rotating cylinder. The tool box is fixedly installed at the bottom of the driving device, and the rotating cylinder is arranged inside the tool box.

[0007] Further, the bottom of the driving device is drivingly connected to an output shaft. At the bottom of the output shaft, a T-shaped block is fixedly connected. Inside the notch, a cart is arranged. The size of the cart matches the size of the notch. On the inner wall of the bottom of the cart, several groups of mounting seats are fixedly installed. On the top of each mounting seat, a raw material roller is rotatably installed.

[0008] Furthermore, both ends of the conveyor belt are internally connected with a rotating shaft for transmission, and the rotating shaft is rotatably installed between the two side walls of the chassis, and both ends of the rotating shaft away from the notch are fixedly installed with a pulley, and a motor is fixedly installed on one side wall of the chassis, and the output end of the motor passes through the side wall of the chassis and is fixedly connected to the rotating shaft, and horizontal mounting grooves are opened on the inner walls on both sides of the opposite sides of the chassis, and a slider is slidably installed inside the mounting groove, and a spring is fixedly installed between the slider and the inner wall of one side of the mounting groove.

[0009] Furthermore, the pressure roller is fixedly installed on the connecting shaft, and both ends of the connecting shaft are fixedly connected to pulley 2. Both ends of the connecting shaft are slidably arranged inside a fixed shell. The fixed shell is fixedly installed on the top of the two side walls of the chassis. A slider 2 is slidably arranged inside the fixed shell. The slider 2 is located above the connecting shaft, and a spring 2 is fixedly installed between the slider 2 and the top inner wall of the fixed shell.

[0010] Furthermore, a movable rod is provided on the side of the rotating shaft on which pulley one is installed close to the other rotating shaft, and both ends of the movable rod are slidably arranged inside the installation groove. The movable rod is located on the side of slider one away from the clamping roller, and transmission is realized between pulley one, pulley two and pulley three through a transmission belt.

[0011] Furthermore, slots are provided on the top and bottom of the inner wall of the tool box, three groups of protrusions 1 are evenly fixedly connected around the bottom of the side wall of the tool box, a through hole is provided on the upper cover of the tool box that runs through the tool box body, a pressure plate is provided at the bottom of the tool box, a knife feed port is provided inside the pressure plate, and the central axis of the through hole and the knife feed port are located on the same straight line, three protrusions 2 are evenly fixedly connected on the side wall of the pressure plate, a column 1 is fixedly connected to the protrusion 2 on the side away from the knife feed port, and the end of the column 1 away from the pressure plate is slidably arranged inside the corresponding protrusion 1, and a trigger column is fixedly connected to the side of the top of the column 1 near the axis of the tool box, and a column 2 is fixedly installed on the other two protrusions 2, and the two columns 2 are slidably arranged inside the other two protrusions 1, and a reset spring is installed between the two protrusions 2 with the column 2 installed and the corresponding protrusion 1, and the reset spring is sleeved on the column 2.

[0012] Furthermore, a guide column is fixedly installed at the axis center inside the tool box, and a special-shaped annular guide rail is opened on one side of the guide column. The highest point and the lowest point of the annular guide rail are respectively located on the side close to the column one and away from the column one.

[0013] Furthermore, both ends of the rotating drum are fixedly connected with a clamping ring, and the rotating drum is rotatably installed between the upper and lower clamping grooves through the clamping ring. Four sets of slide rails connected end to end are opened on the side wall of the clamping ring. Each set of slide rails includes a section of upward inclined track and a vertical track at one end. The end of the trigger column away from the column is slidably set inside the slide rail, and the lowest point of the connection between the bottom end of the inclined track of the slide rail and the vertical track is biased towards the inclined track.

[0014] Furthermore, four groups of vertical grooves are evenly formed in the inner wall of the rotary drum. A sliding frame is slidably installed inside the vertical grooves. A pair of clamping plates are symmetrically arranged inside the sliding frame. Matching grooves are formed in the middle of the inner walls of the clamping plates. Wedge-shaped blocks are fixedly connected to the middle of the outer walls of the clamping plates. Cylinders are fixedly connected to the middle of the wedge-shaped blocks. The cylinders are slidably arranged inside the two side walls of the sliding frame. Blocks are fixedly connected to the ends of the cylinders far away from the clamping plates. Thrust springs are installed between the blocks and the side walls of the sliding frame. The thrust springs are sleeved on the cylinders.

[0015] Furthermore, sliding seats are arranged on one side of the sliding frame close to the axis of the rotary drum. The side wall of the sliding seat close to the sliding frame is rigid, and the side away from the sliding frame is elastic. Trapezoidal blocks are fixedly connected to both ends of the rigid side wall of the sliding seat. The two trapezoidal blocks on both sides are respectively slidably arranged between the wedge-shaped blocks on the same side and the inner wall of the sliding frame. The inclined side walls of the trapezoidal blocks are attached to the inclined surfaces of the wedge-shaped blocks. A number of groups of elastic support plates are symmetrically and fixedly connected inside the sliding seat. A sliding column is fixedly installed inside the sliding seat. The sliding column penetrates through the elastic side wall of the sliding seat and extends to the outside of the sliding seat. The penetrating part of the sliding column is slidably arranged inside the annular guide rail. Pressure springs are fixedly installed between both ends of the sliding seat and both side walls of the sliding frame. A cutting knife is arranged between each pair of clamping plates. The cutting knife includes a knife handle installed on itself. An arc-shaped T-shaped groove is formed at the top of the knife handle. Two matching blocks are symmetrically and fixedly connected to the side wall of the cutting knife. The matching blocks are slidably arranged inside the corresponding matching grooves.

[0016] The present invention has the following beneficial effects:

[0017] (1) According to the thickness of the synthetic leather layers, the pressing roller is extruded and moved upward in the present invention. Meanwhile, the movable rod moves synchronously. And through the arrangement of the first spring, it can be ensured that the transmission belt is always in a straightened state, ensuring the stable output of the motor power, and ensuring that the device is applicable to the transportation of synthetic leather with various thicknesses and layers, increasing the practicability of the device.

[0018] (2) During the cutting process of the present invention, by moving the pressure plate up and down, the rotary drum is driven to rotate, and then the multiple groups of cutting knives inside it can move synchronously, enabling the tool change action to be carried out during each forward and backward feed, effectively preventing the situation that the tool bears too much load and affects the service life of the cutting knife.

[0019] Certainly, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. Description of the Drawings

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0021] Figure 1 Schematic diagram of the overall structure of the present invention;

[0022] Figure 2 Schematic diagram of the trolley structure of the present invention;

[0023] Figure 3 Schematic diagram of the chassis structure of the present invention;

[0024] Figure 4 Schematic diagram of the pressing roller structure of the present invention;

[0025] Figure 5 Schematic diagram of the internal structure of the installation groove of the present invention;

[0026] Figure 6 Schematic diagram of the overall pressure regulating mechanism of the present invention;

[0027] Figure 7 Schematic diagram of the tool box structure of the present invention;

[0028] Figure 8 Schematic diagram of the internal structure of the rotating cylinder of the present invention;

[0029] Figure 9 Schematic diagram of the clamping plate structure of the present invention;

[0030] Figure 10 Schematic diagram of the overall structure of the cutting tool of the present invention.

[0031] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0032] In the figure: 1. Machine case; 101. Notch; 11. Support leg; 12. Gantry; 121. Driving device; 122. Output shaft; 123. T-shaped block; 13. Trolley; 131. Mounting seat; 132. Raw material roller; 14. Conveyor belt; 141. Rotating shaft; 142. Pulley I; 15. Motor; 16. Mounting groove; 161. Slide block I; 162. Spring I; 2. Pressing roller; 201. Connecting shaft; 202. Pulley II; 21. Fixed housing; 211. Slide block II; 212. Spring II; 22. Movable rod; 221. Pulley III; 23. Transmission belt; 3. Tool box; 301. Card slot; 302. Protrusion I; 303. Through hole; 31. Pressing plate; 311. Inlet; 312. Protrusion II; 32. Column I; 321. Trigger column; 33. Column II; 331. Reset spring; 34. Guide column; 341. Ring rail; 342. Groove; 4. Rotating cylinder; 41. Snap ring; 42. Slide rail; 43. Vertical groove; 44. Sliding frame; 45. Clamping plate; 451. Fitting groove; 452. Wedge block; 453. Cylinder; 454. Stop block; 455. Thrust spring; 46. Sliding seat; 461. Trapezoidal block; 462. Deep groove; 463. Elastic support plate; 47. Sliding column; 48. Pressure spring; 49. Cutting tool; 491. Tool handle; 492. T-shaped groove; 493. Fitting block. Detailed implementation mode

[0033] The accompanying drawings in the embodiments of the present invention clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figure 1 - Figure 10 As shown in the figure, the present invention is a synthetic leather cutting device with a pressing and adjusting function, including a machine case 1. Support legs 11 are fixedly installed at both ends of the opposite side walls of the machine case 1. A gantry frame 12 is fixedly installed on the top of the machine case 1. A driving device 121 is slidably arranged on the gantry frame 12. A notch 101 is opened at one end of the bottom of the machine case 1 away from the gantry frame 12. A set of conveyor belts 14 is arranged inside the machine case 1, a conveying assembly, the conveying assembly includes a pressing roller 2, and the pressing roller 2 is arranged above one end of the conveyor belt 14 away from the trolley 13, a pressing and adjusting mechanism, and the pressing and adjusting mechanism includes a tool box 3 and a rotating cylinder 4. The tool box 3 is fixedly installed at the bottom of the driving device 121, and the rotating cylinder 4 is arranged inside the tool box 3.

[0035] At the bottom of the driving device 121, there is an output shaft 122 connected by transmission. At the bottom of the output shaft 122, there is a T-shaped block 123 fixedly connected. Inside the notch 101, there is a trolley 13. The size of the trolley 13 matches that of the notch 101. On the inner wall of the bottom of the trolley 13, several groups of mounting seats 131 are fixedly installed, and raw material rollers 132 are rotatably installed on the tops of the mounting seats 131.

[0036] At both ends inside the conveyor belt 14, there are rotating shafts 141 connected by transmission. The rotating shafts 141 are rotatably installed between the two side walls of the chassis 1. At both ends of the rotating shaft 141 on the side away from the notch 101, there are pulley ones 142 fixedly installed. On one side wall of the chassis 1, there is a motor 15 fixedly installed. The output end of the motor 15 penetrates through the side wall of the chassis 1 and is fixedly connected to the rotating shaft 141. On the inner walls of the two opposite sides of the chassis 1, there are horizontally arranged mounting grooves 16. Inside the mounting grooves 16, there are slider ones 161 slidably installed. Between the slider ones 161 and one side inner wall of the mounting grooves 16, there is a spring one 162 fixedly installed.

[0037] The pressing roller 2 is fixedly installed on the connecting shaft 201. At both ends of the connecting shaft 201, there are pulley twos 202 fixedly connected. At both ends of the connecting shaft 201, they are slidably arranged inside a fixed shell 21. The fixed shell 21 is fixedly installed on the tops of the two side walls of the chassis 1. Inside the fixed shell 21, there are slider twos 211 slidably arranged. The slider twos 211 are located above the connecting shaft 201. Between the slider twos 211 and the top inner wall of the fixed shell 21, there are spring twos 212 fixedly installed.

[0038] On the side of the rotating shaft 141 with the pulley one 142 installed, close to the other rotating shaft 141, there is a movable rod 22. At both ends of the movable rod 22, they are slidably arranged inside the mounting groove 16. The movable rod 22 is located on the side of the slider one 161 away from the pressing roller 2. The pulley one 142, the pulley two 202, and the pulley three 221 are driven by a transmission belt 23.

[0039] At the top and bottom of the inner wall of the tool box 3, clamping grooves 301 are provided. At the bottom of the side wall of the tool box 3, three groups of first bumps 302 are evenly and fixedly connected around. The upper cover of the tool box 3 is provided with a through hole 303 penetrating the main body of the tool box 3. The bottom of the tool box 3 is provided with a pressing plate 31. An inlet 311 is provided inside the pressing plate 31. The central axes of the through hole 303 and the inlet 311 are on the same straight line. Three second bumps 312 are evenly and fixedly connected to the side wall of the pressing plate 31. A first column 32 is fixedly connected to the second bump 312 on the side far from the inlet 311. One end of the first column 32 far from the pressing plate 31 is slidably arranged inside the corresponding first bump 302. On one side of the top of the first column 32 close to the axis of the tool box 3, a trigger post 321 is fixedly connected. Second columns 33 are fixedly installed on the other two second bumps 312. Both of the two second columns 33 are slidably arranged inside the other two first bumps 302. A return spring 331 is installed between the two second bumps 312 where the second columns 33 are installed and the corresponding first bumps 302. The return spring 331 is sleeved on the second column 33.

[0040] A guide post 34 is fixedly installed at the central axis inside the tool box 3. An irregular annular guide rail 341 is provided on one side of the guide post 34. The highest point and the lowest point of the annular guide rail 341 are respectively located on the side close to the first column 32 and the side far from the first column 32.

[0041] Clamping rings 41 are fixedly connected to both ends of the rotating cylinder 4. The rotating cylinder 4 is rotationally installed between the upper and lower clamping grooves 301 through the clamping rings 41. Four groups of sliding rails 42 connected end to end are provided on the side wall of the clamping ring 41. Each group of sliding rails 42 includes an upwardly inclined track and a vertical track. One end of the trigger post 321 far from the first column 32 is slidably arranged inside the sliding rail 42. The lowest point of the connection between the inclined track and the vertical track of the inclined track of the sliding rail 42 is biased towards the inclined track.

[0042] Four groups of vertical grooves 43 are evenly provided on the inner wall of the rotating cylinder 4. A sliding frame 44 is slidably installed inside the vertical groove 43. A pair of clamping plates 45 are symmetrically arranged inside the sliding frame 44. Matching grooves 451 are provided in the middle of the inner walls of the clamping plates 45. Wedge blocks 452 are fixedly connected to the middle of the outer walls of the clamping plates 45. A cylinder 453 is fixedly connected to the middle of the wedge block 452. The cylinder 453 is slidably arranged inside the two side walls of the sliding frame 44. Blocks 454 are fixedly connected to one ends of the cylinder 453 far from the clamping plates 45. Thrust springs 455 are installed between the blocks 454 and the side walls of the sliding frame 44. The thrust springs 455 are sleeved on the cylinder 453.

[0043] On one side of the sliding carriage 44 near the axis of the rotating cylinder 4, sliding seats 46 are provided. The side wall of the sliding seat 46 close to the sliding carriage 44 is rigid, and the side away from the sliding carriage 44 is elastic. At both ends of the rigid side wall of the sliding seat 46, trapezoidal blocks 461 are fixedly connected. The two trapezoidal blocks 461 on both sides are respectively slidably arranged between the wedge-shaped blocks 452 on the same side and the inner wall of the sliding carriage 44. The inclined side walls of the trapezoidal blocks 461 are in contact with the inclined surfaces of the wedge-shaped blocks 452. Inside the sliding seat 46, several groups of elastic support plates 463 are symmetrically and fixedly connected. A sliding column 47 is fixedly installed inside the sliding seat 46. The sliding column 47 passes through the elastic side wall of the sliding seat 46 and extends to the outside of the sliding seat 46. The penetrating part of the sliding column 47 is slidably arranged inside the annular guide rail 341. Pressure springs 48 are fixedly installed between both ends of the sliding seat 46 and both side walls of the sliding carriage 44. Between each pair of clamping plates 45, a cutting knife 49 is provided. The cutting knife 49 includes a knife handle 491 installed on itself. An arc-shaped T-shaped groove 492 is opened at the top of the knife handle 491. On the side wall of the cutting knife 49, two fitting blocks 493 are symmetrically and fixedly connected. The fitting blocks 493 are slidably arranged inside the corresponding fitting grooves 451.

[0044] During use, place the raw material roller 132 on the mounting seat 131, then push the cart 13 into the notch 101. Thread the feeding end of the raw material roller 132 through the top of the conveyor belt 14 and between the conveyor belt 14 and the pressing roller 2. According to the thickness of the synthetic leather layers, squeeze the pressing roller 2 to move upward. At the same time, the movable rod 22 moves synchronously. And through the setting of the first spring 162, it can ensure that the conveyor belt 23 is always in a taut state, ensuring the stable power output of the motor 15, and can ensure that the device is applicable to the transportation of synthetic leather with various thicknesses and layers, increasing the practicability of the device.

[0045] During cutting, the pressing plate 31 first contacts the surface of the synthetic leather and generates extrusion. And the pressing plate 31 can flatten the synthetic leather. The return spring 331 is compressed. The trigger post 321 slides inside the slide rail 42, and at the same time, it generates extrusion on the side wall of the slide rail 42, pushing the rotating cylinder 4 to rotate, thereby driving the synchronous movement of the sliding carriage 44, the clamping plates 45, the sliding seats 46, the sliding columns 47 and the cutting knives 49 inside the rotating cylinder 4. When the pressing plate 31 can no longer move, a group of cutting knives 49 move to the lowest position of the annular guide rail 341. The pressure spring 48 extends to push the sliding seat 46 and the sliding column 47 to move towards the axis of the rotating cylinder 4. The sliding column 47 extends into the groove 342. Then, the thrust spring 455 pushes the two stop blocks 454 on both sides to drive the two clamping plates 45 to move away from each other, losing the clamping on the knife handle 491.

[0046] During this process, when the knife handle 491 rotates with the rotating cylinder 4, the first column 33 on the output shaft 122 will first insert into the T-shaped groove 492 to fix the tool. Then, the driving device 121 can be driven to drive the cutting knife 49 to move and cut the synthetic leather.

[0047] After the cutting is completed, the return spring 331 extends to push the pressing plate 31 to separate from the tool box 3, and the trigger post 321 moves to the lowest position of the slide rail 42. During the cutting process, this cycle is repeated for each feed, and thus the tool can be changed during each forward and backward movement of the tool, effectively preventing the tool from bearing excessive load and affecting the service life of the cutting tool 49.

[0048] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A synthetic leather cutting device with a pressing and adjusting mechanism, comprising a chassis (1), and both ends of two opposite side walls of the chassis (1) Support legs (11) are fixedly installed, a gantry (12) is fixedly installed on the top of the chassis (1), a driving device (121) is slidably arranged on the gantry (12), a notch (101) is formed at one end of the bottom of the chassis (1) far from the gantry (12), and a set of conveyor belts (14) are arranged inside the chassis (1), characterized in that, Further comprising: A conveying assembly, which includes a pressing roller (2), and the pressing roller (2) is arranged above one end of the conveyor belt (14) away from the trolley (13); A pressing and adjusting mechanism, which includes a tool box (3) and a rotating cylinder (4). The tool box (3) is fixedly installed at the bottom of the driving device (121), and the rotating cylinder (4) is arranged inside the tool box (3); At the top and bottom of the inner wall of the tool box (3), clamping grooves (301) are respectively opened. At the bottom of the side wall of the tool box (3), three groups of first bumps (302) are evenly and fixedly connected around the circumference. A through hole (303) penetrating the main body of the tool box (3) is opened on the upper cover of the tool box (3). A pressing plate (31) is arranged at the bottom of the tool box (3). An inlet opening (311) is opened inside the pressing plate (31). The central axes of the through hole (303) and the inlet opening (311) are located on the same straight line. Three second bumps (312) are evenly and fixedly connected to the side wall of the pressing plate (31). A first column (32) is fixedly connected to the second bump (312) on the side away from the inlet opening (311). The end of the first column (32) away from the pressing plate (31) is slidably arranged inside the corresponding first bump (302). One side of the top of the first column (32) close to the axis of the tool box (3) is fixedly connected with a trigger column (321). Second columns (33) are fixedly installed on the other two second bumps (312). Both of the second columns (33) are slidably arranged inside the other two first bumps (302). A return spring (331) is installed between the two second bumps (312) with the second columns (33) installed and the corresponding first bumps (302). The return spring (331) is sleeved on the second column (33); A guiding column (34) is fixedly installed at the central axis inside the tool box (3). An annular guide rail (341) is opened on one side of the guiding column (34). The highest point and the lowest point of the annular guide rail (341) are respectively located on the side close to the first column (32) and the side away from the first column (32); Both ends of the rotating cylinder (4) are fixedly connected with clamping rings (41). The rotating cylinder (4) is rotationally installed between the upper and lower clamping grooves (301) through the clamping rings (41). Four groups of sliding rails (42) connected end to end are opened on the side wall of the clamping ring (41). Each group of sliding rails (4) includes an upwardly inclined track and a vertical track. The end of the trigger column (321) away from the first column (32) is slidably arranged inside the sliding rail (42). The lowest point of the connection between the inclined track and the vertical track of the sliding rail (42) is biased towards the inclined track; Four groups of vertical grooves (43) are evenly formed in the inner wall of the rotary drum (4). A sliding frame (44) is slidably installed inside the vertical groove (43). A pair of clamping plates (45) are symmetrically arranged inside the sliding frame (44). A mating groove (451) is formed in the middle of the inner wall of each clamping plate (45). A wedge-shaped block (452) is fixedly connected to the middle of the outer wall of each clamping plate (45). A cylinder (453) is fixedly connected to the middle of the wedge-shaped block (452). The cylinder (453) is slidably arranged inside the two side walls of the sliding frame (44). A stop block (454) is fixedly connected to one end of the cylinder (453) away from the clamping plate (45). A thrust spring (455) is installed between the stop block (454) and the side wall of the sliding frame (44). The thrust spring (455) is sleeved on the cylinder (453). A sliding seat (46) is arranged on one side of the sliding frame (44) close to the axis of the rotary drum (4). The side wall of the sliding seat (46) close to the sliding frame (44) is rigid, and the side away from the sliding frame (44) is elastic. Trapezoidal blocks (461) are fixedly connected to both ends of the rigid side wall of the sliding seat (46). The two trapezoidal blocks (461) on both sides are respectively slidably arranged between the wedge-shaped block (452) on the same side and the inner wall of the sliding frame (44). The inclined side wall of the trapezoidal block (461) is attached to the inclined surface of the wedge-shaped block (452). A number of elastic support plates (463) are symmetrically and fixedly connected inside the sliding seat (46). A sliding column (47) is fixedly installed inside the sliding seat (46). The sliding column (47) penetrates through the elastic side wall of the sliding seat (46) and extends to the outside of the sliding seat (46). The penetrating part of the sliding column (47) is slidably arranged inside the annular guide rail (341). A pressure spring (48) is fixedly installed between both ends of the sliding seat (46) and the two side walls of the sliding frame (44). A cutter (49) is arranged between each pair of clamping plates (45). The cutter (49) includes a cutter handle (491) installed on itself. An arc-shaped T-shaped groove (492) is formed at the top of the cutter handle (491). Two mating blocks (493) are symmetrically and fixedly connected to the side wall of the cutter (49). The mating blocks (493) are slidably arranged inside the corresponding mating grooves (451).

2. The synthetic leather cutting device with a pressing and adjusting type according to claim 1, characterized in that: An output shaft (122) is drivingly connected to the bottom of the driving device (121). A T-shaped block (123) is fixedly connected to the bottom of the output shaft (122). A trolley (13) is arranged inside the notch (101). The size of the trolley (13) matches the size of the notch (101). A number of mounting seats (131) are fixedly installed on the inner wall of the bottom of the trolley (13). Raw material rollers (132) are rotatably installed on the tops of the mounting seats (131).

3. The synthetic leather cutting device with a pressing and adjusting type according to claim 2, characterized in that: Both ends of the conveyor belt (14) are internally connected to a rotating shaft (141) in a driving manner. The rotating shaft (141) is rotatably installed between the two side walls of the chassis (1). At both ends of the rotating shaft (141) on the side away from the notch (101), a first pulley (142) is fixedly installed. A motor (15) is fixedly installed on one side wall of the chassis (1). The output end of the motor (15) penetrates through the side wall of the chassis (1) and is fixedly connected to the rotating shaft (141). Horizontal installation grooves (16) are formed on the inner walls of the two opposite sides of the chassis (1). A first slider (161) is slidably installed inside the installation groove (16). A first spring (162) is fixedly installed between the first slider (161) and one inner wall of the installation groove (16).

4. The synthetic leather cutting device with a pressing and adjusting type according to claim 3, characterized in that: The pressing roller (2) is fixedly installed on the connecting shaft (201). At both ends of the connecting shaft (201), a second pulley (202) is fixedly connected. Both ends of the connecting shaft (201) are slidably arranged inside a fixed housing (21). The fixed housing (21) is fixedly installed on the tops of the two side walls of the chassis (1). A second slider (211) is slidably arranged inside the fixed housing (21). The second slider (211) is located above the connecting shaft (201). A second spring (212) is fixedly installed between the second slider (211) and the top inner wall of the fixed housing (21).

5. The pressing and adjusting type synthetic leather cutting device according to claim 4, characterized in that: On the side of the rotating shaft (141) installed with the first pulley (142) close to the other rotating shaft (141), a movable rod (22) is arranged. Both ends of the movable rod (22) are slidably arranged inside the installation groove (16). The movable rod (22) is located on the side of the first slider (161) away from the pressing roller (2). Transmission among the first pulley (142), the second pulley (202), and the third pulley (221) is realized through a transmission belt (23).

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