A die cutting machine cutting surface gap adjusting mechanism

Abstract

The application discloses to the technical field of die-cutting machine, concretely is a kind of die-cutting machine cut surface gap adjusting mechanism, including support frame, two inner side walls of support frame symmetrically are provided with convex chute, horizontal bar is arranged between two convex chutes, the outer side of horizontal bar is fixedly installed with scraper, the outer side of both ends of horizontal bar is fixedly sleeved with extension plate, and support roller is rotatably installed between two extension plates;The beneficial effects of the application are that: the front and rear adjusting mechanisms are driven to rotate by the driving mechanism, the two convex blocks are moved forward and backward synchronously by the front and rear adjusting mechanisms, the two convex blocks drive the scraper to move forward and backward by horizontal bar, so that the front and rear adjustment of the scraper is completed, after adjustment is completed, the convex block is locked by locking mechanism, to prevent the scraper from shaking forward and backward during work;The driving mechanism and the front and rear adjusting mechanisms are matched, and the gap between the scraper and the die-cutting cylinder can be accurately adjusted.

Description

Technical Field

[0001] This invention relates to the field of die-cutting machine technology, specifically to a die-cutting machine cutting surface gap adjustment mechanism. Background Technology

[0002] Die-cutting machines, also known as cutting machines or CNC punching machines, are industrial equipment used for cutting and shaping materials. They are widely used in packaging, printing, electronics, automotive and other industries. They are mainly used for die-cutting, creasing and hot stamping of non-metallic materials, self-adhesive labels, double-sided tapes, electronic and mobile phone pads, etc., as well as lamination and automatic waste removal. Die-cutting machines use steel knives, hardware molds, and templates carved from steel wire or steel plates. By applying a certain pressure through the printing plate, they cut printed materials or cardboard into a certain shape. They are an important piece of equipment for post-printing packaging processing.

[0003] During the die-cutting process, the precision of the gap between the scraper and the die-cutting roller directly determines the die-cutting quality, waste removal efficiency, and the lifespan of the die. Existing scraper gap adjustment mechanisms in die-cutting machines typically have the following shortcomings: 1. Traditional die-cutting machines can only adjust the scraper's forward and backward movement to regulate the static gap with the roller, but cannot independently adjust the scraper's tilt angle along its length. In actual production, the scraper often needs to be tilted at a certain angle to ensure uniform gap throughout the production line, a requirement that existing mechanisms cannot meet.

[0004] 2. The existing adjustable mechanism of the scraper section of the die-cutting machine uses multiple scattered adjustment points, which require the operator to operate and lock them on both sides of the equipment. This process is not only cumbersome and inefficient, but also requires the operator to manually push the scraper to adjust, making it difficult to ensure the consistency of the adjustment on both sides. This can easily lead to scraper deviation or jamming, which is not conducive to actual use. Summary of the Invention

[0005] The purpose of this invention is to provide a die-cutting machine cutting surface gap adjustment mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a die-cutting machine cutting surface gap adjustment mechanism, comprising a support frame, wherein convex grooves are symmetrically provided on the two inner side walls of the support frame, a crossbar is provided between the two convex grooves, a scraper is fixedly installed on the outer side of the crossbar, extension plates are fixedly sleeved on the outer sides of both ends of the crossbar, a support roller is rotatably installed between the two extension plates, convex sliders are symmetrically rotatably installed on both ends of the crossbar through bearings, the convex sliders are slidably connected to the adjacent convex grooves, an adjustment seat is fixedly connected to the side of one of the convex sliders, a locking mechanism is connected to the upper end of the other convex slider and the adjustment seat, a rotating groove is provided on the inner side of the adjustment seat, and an tilt adjustment mechanism for rotating the adjustment crossbar is installed in the adjustment seat, and a self-locking mechanism is installed at one end of the tilt adjustment mechanism; Two convex sliders are each equipped with a front-to-back adjustment mechanism on the side opposite to each other, and one end of each adjustment mechanism is connected to a drive mechanism.

[0007] As a further embodiment of the present invention, the locking mechanism includes a locking seat, a sliding groove is provided through the side of the locking seat, a locking bolt is inserted through the sliding groove, one end of the locking bolt with threads is threadedly connected to the support frame, and the head of the locking bolt abuts against the side of the locking seat.

[0008] As a further embodiment of the present invention, one end of the crossbar extends through the adjusting seat into the rotating groove. The tilting adjustment mechanism includes a worm gear rotatably installed in the rotating groove. The worm gear is fixedly sleeved on the outside of the crossbar. A worm is engaged at the upper end of the worm gear. The worm is rotatably connected to the adjusting seat. A round rod is fixedly connected to one end of the worm. A moving groove is opened through the side of the round rod. A circular hole is opened at the end of the round rod away from the worm. The circular hole communicates with the moving groove. The self-locking mechanism is set on the round rod.

[0009] As a further embodiment of the present invention, the self-locking mechanism includes an annular fixed crown gear, an annular limiting crown gear, a locking spring, and an annular sleeve sequentially sleeved on the outside of the round rod. The annular fixed crown gear is fixedly connected to the adjusting seat, and the annular fixed crown gear and the annular limiting crown gear are engaged. The annular sleeve is fixedly sleeved on the end of the round rod away from the adjusting seat, and the two ends of the locking spring abut against the annular sleeve and the annular limiting crown gear, respectively. A synchronizing block is fixedly connected to the inner side of the annular limiting crown gear. The synchronizing block passes through the moving groove and is slidably connected to the moving groove. An unlocking mechanism is installed on the synchronizing block.

[0010] As a further embodiment of the present invention, the unlocking mechanism includes a slide rod rotatably connected to one side of the synchronizing block via a pin. One end of the slide rod passes through a circular hole and is fixedly connected to a limiting block. The annular sleeve has symmetrical slots on the side away from the locking spring, and the two ends of the limiting block are respectively engaged with the two slots.

[0011] As a further embodiment of the present invention, the front and rear adjustment mechanism includes a sliding sleeve, a driving cylinder is inserted through the inner side of the sliding sleeve, the cylindrical surface of the driving cylinder has two spiral grooves arranged in a ring array, both ends of the driving cylinder are rotatably connected to a fixed block through a rotating shaft, the fixed block is fixedly connected to a support frame, one end of one of the rotating shafts passes through the fixed block and is fixedly sleeved with a synchronous bevel gear, and the driving mechanism is arranged on the side of the synchronous bevel gear. The inner side of the sliding sleeve is symmetrically and fixedly connected with transmission rods. The two transmission rods extend into the two spiral grooves respectively. Rollers are rotatably installed on the outer side of the transmission rods, and the rollers are in rolling connection with the spiral grooves.

[0012] As a further embodiment of the present invention, a protective shell is fitted on the outer side of the front and rear adjustment mechanism. The protective shell is fixedly connected to the support frame. An avoidance groove is provided at the upper end of the protective shell so as not to hinder the normal front and rear movement of the adjustment seat, the synchronization frame and the sliding sleeve. The two ends of the drive mechanism extend into the two protective shells respectively.

[0013] As a further embodiment of the present invention, the driving mechanism includes a round shaft that is inserted through and inserted into the side of the support frame. A transmission bevel gear is fixedly sleeved on the outer side of the round shaft. The transmission bevel gear meshes with an adjacent synchronous bevel gear. Two protective shells are respectively inserted through both ends of the round shaft. A crank handle is fixedly connected to one end of one of the round shafts. An internal threaded sleeve is inserted through and fixedly inserted into the side of the crank handle. A fastening bolt is installed on the inner thread of the internal threaded sleeve. One end of the fastening bolt abuts against the outer surface of the protective shell.

[0014] The beneficial effects of this invention are: 1. When the scraper needs to be adjusted to move back and forth, first release the locking mechanism from the convex slider. Then, the drive mechanism drives the front and back adjustment mechanism to rotate, which in turn drives the two convex sliders to move back and forth synchronously. The two convex sliders slide along the convex groove, and the two convex sliders drive the scraper to move back and forth through the crossbar, thus completing the front and back adjustment of the scraper. After the adjustment is completed, the locking mechanism locks the convex sliders to prevent the scraper from wobbling back and forth during operation. Through the cooperation of the drive mechanism and the front and back adjustment mechanism, the gap between the scraper and the die-cutting cylinder can be precisely adjusted.

[0015] 2. When it is necessary to adjust the tilt of the scraper, first release the self-locking mechanism from locking the tilt adjustment mechanism, then rotate the tilt adjustment mechanism. The tilt adjustment mechanism drives the crossbar to rotate, and the crossbar drives the scraper to swing up or down, adjusting the tilt angle of the scraper. After adjustment, lock the self-locking mechanism to prevent the scraper from shaking up and down during operation. The tilt adjustment mechanism can accurately adjust the up and down swing angle of the scraper, thereby ensuring uniform gap throughout the line and ensuring the processing accuracy of the die-cutting machine. Attached Figure Description

[0016] Figure 1 This is a perspective view of the die-cutting machine cutting surface gap adjustment mechanism of the present invention; Figure 2 This is a partial sectional view of the die-cutting machine gap adjustment mechanism of the present invention; Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 4 This is a side sectional view of the adjusting seat, self-locking mechanism, and unlocking mechanism of the present invention; Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B; Figure 6 This is a side sectional view of the die-cutting machine cutting surface gap adjustment mechanism of the present invention; Figure 7 This is an exploded view of the support frame, crossbar, scraper, and convex slider structure of the present invention; Figure 8 This is an exploded view of the convex slider, adjusting seat, and front and rear adjusting mechanism of the present invention. Figure 9 This is an exploded view of the structure of the adjusting seat, locking mechanism, tilting adjustment mechanism and self-locking mechanism of the present invention; Figure 10 This is a partial three-dimensional view of the die-cutting machine cutting surface gap adjustment mechanism of the present invention.

[0017] In the diagram: 1. Support frame; 11. Convex groove; 12. Protective shell; 2. Crossbar; 21. Scraper; 22. Extension plate; 23. Support roller; 24. Convex slider; 3. Adjusting seat; 31. Rotating groove; 32. Locking seat; 33. Translation groove; 34. Locking bolt; 4. Worm gear; 41. Worm; 42. Round rod; 43. Moving groove; 44. Circular hole; 5. Annular fixed crown gear; 51. Annular limiting crown gear; 52. Synchronizing block; 53. Locking spring; 54. Annular sleeve; 55. Slot; 6. Slide rod; 61. Limiting block; 7. Slide sleeve; 71. Drive cylinder; 72. Fixed block; 73. Spiral groove; 74. Transmission rod; 75. Synchronizing bevel gear; 8. Round shaft; 81. Transmission bevel gear; 82. Handle; 83. Internal threaded sleeve; 84. Fastening bolt. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1 to 10This invention provides a technical solution: a die-cutting machine cutting gap adjustment mechanism, including a support frame 1. The support frame 1 has symmetrically formed convex grooves 11 on its two inner sidewalls. A crossbar 2 is disposed between the two convex grooves 11. A scraper 21 is fixedly installed on the outer side of the crossbar 2. An installation groove is formed on the outer side of the crossbar 2, and the scraper 21 is fixedly installed in the installation groove by bolts. Extension plates 22 are fixedly sleeved on the outer sides of both ends of the crossbar 2. A support roller 23 is rotatably installed between the two extension plates 22. The support roller 23 is installed at the end of the extension plate 22 away from the crossbar 2. Convex grooves 11 are symmetrically rotatably installed at both ends of the crossbar 2 via bearings. The convex slider 24 is slidably connected to the adjacent convex slide groove 11. One of the convex sliders 24 is fixedly connected to the side of the adjustment seat 3. The other convex slider 24 and the upper end of the adjustment seat 3 are both connected to the locking mechanism, thereby locking the two convex sliders 24 to the support frame 1. The inner side of the adjustment seat 3 is provided with a rotating groove 31. The adjustment seat 3 is composed of two symmetrical shells spliced ​​together. The two shells are fixedly connected by bolts or by welding. The adjustment seat 3 is equipped with a tilt adjustment mechanism that rotates the adjustment crossbar 2. One end of the tilt adjustment mechanism is equipped with a self-locking mechanism. Both of the two convex sliders 24 are equipped with front-to-back adjustment mechanisms on the side away from each other. The front-to-back adjustment mechanism closer to the adjustment seat 3 is connected to the adjustment seat 3, and the front-to-back adjustment mechanism farther from the adjustment seat 3 is connected to the adjacent convex slider 24 through a timing frame. One end of the two front-to-back adjustment mechanisms is connected to the drive mechanism, and the two front-to-back adjustment mechanisms are connected to a drive mechanism together.

[0020] Please see Figures 4 to 6 , Figure 9 , Figure 10 The locking mechanism includes a locking seat 32, a sliding groove 33 is provided through the side of the locking seat 32, a locking bolt 34 is inserted through the sliding groove 33, one threaded end of the locking bolt 34 is threadedly connected to the support frame 1, and the head of the locking bolt 34 abuts against the side of the locking seat 32, thereby fixing the locking seat 32 and the support frame 1 relative to each other. The side of the support frame 1 is provided with a threaded hole, and the threaded end of the locking bolt 34 is connected to the threaded hole. Two locking mechanisms are located above both ends of the crossbar 2, and two locking seats 32 are located on both sides of the support frame 1. Of the two locking mechanisms, one is located on an inner side wall of the support frame 1 away from the adjusting seat 3, and the other is located on an outer side surface of the support frame 1 near the adjusting seat 3. One locking seat 32 is fixedly connected to the upper end of the adjusting seat 3, and the other locking seat 32 is fixedly connected to a convex slider 24 away from the adjusting seat 3. When adjusting the tightness, the operator can operate the two locking mechanisms by standing on one side of the support frame 1, which improves the convenience of subsequent tightness adjustment.

[0021] When it is necessary to release the locking mechanism from the convex slider 24, the locking bolt 34 is unscrewed outward along the support frame 1 so that the head of the locking bolt 34 is separated from the locking seat 32. At this time, the front and rear adjustment mechanism can drive the convex slider 24 to move back and forth, and the translation groove 33 on the locking seat 32 slides along the locking bolt 34. When it is necessary to lock the convex slider 24 with the locking mechanism, screw the locking bolt 34 into the support frame 1 so that the head of the locking bolt 34 abuts against the locking seat 32.

[0022] Please see Figure 4 , Figure 5 and Figure 9 One end of the crossbar 2 extends through the adjusting seat 3 into the rotating groove 31. The crossbar 2 is rotatably connected to the adjusting seat 3 via a bearing. The tilting adjustment mechanism includes a worm wheel 4 rotatably installed in the rotating groove 31. The worm wheel 4 is fixedly sleeved on the outside of the crossbar 2. The worm wheel 4 and the crossbar 2 are connected by a key or fixed by bolts. The upper end of the worm wheel 4 is engaged with a worm 41. The worm 41 is rotatably connected to the adjusting seat 3, and one end of the worm 41 passes through the adjusting seat 3. One end of the worm 41 is fixedly connected to a round rod 42. A moving groove 43 is opened through the side of the round rod 42. A circular hole 44 is opened at the end of the round rod 42 away from the worm 41. The circular hole 44 communicates with the moving groove 43. A self-locking mechanism is provided on the round rod 42.

[0023] Rotating the round rod 42 drives the worm gear 41 to rotate, which in turn drives the worm wheel 4 to rotate. The worm wheel 4, through the crossbar 2, drives the scraper 21 to swing up or down, thereby adjusting the tilt angle of the scraper 21.

[0024] Please see Figure 4 , Figure 5 and Figure 9 The self-locking mechanism includes an annular fixed crown gear 5, an annular limiting crown gear 51, a locking spring 53, and an annular sleeve 54, which are sequentially sleeved on the outside of the round rod 42. The annular fixed crown gear 5 is fixedly connected to the adjusting seat 3. The annular fixed crown gear 5 and the annular limiting crown gear 51 are engaged. The annular sleeve 54 is fixedly sleeved on the end of the round rod 42 away from the adjusting seat 3. The two ends of the locking spring 53 abut against the annular sleeve 54 and the annular limiting crown gear 51, respectively. The locking spring 53 applies a spring force to the annular limiting crown gear 51. Under the action of the spring force of the locking spring 53, the annular limiting crown gear 51 always maintains the tendency to engage with the annular fixed crown gear 5. A synchronizing block 52 is fixedly connected to the inner side of the annular limiting crown gear 51. The synchronizing block 52 passes through the moving groove 43 and is slidably connected to the moving groove 43. An unlocking mechanism is installed on the synchronizing block 52.

[0025] When it is necessary to rotate the round rod 42, the self-locking mechanism is first released by the unlocking mechanism to release the lock on the round rod 42. The ring limiting crown gear 51 is separated from the ring fixed crown gear 5 by the unlocking mechanism. At the same time, the ring limiting crown gear 51 squeezes the locking spring 53. At this time, the round rod 42 can be rotated by rotating the ring sleeve 54, thereby causing the tilt adjustment mechanism to move the scraper 21.

[0026] When the adjustment is completed and the round rod 42 needs to be locked, the unlocking mechanism is reset. Under the action of the locking spring 53, the annular limiting crown gear 51 is engaged with the annular fixed crown gear 5. Since the annular fixed crown gear 5 is fixed to the adjusting seat 3, the annular limiting crown gear 51 is locked, thereby locking the round rod 42. The round rod 42 is fixedly connected to the worm gear 41. After the round rod 42 is locked, the worm gear 41 is locked, thereby locking the tilt adjustment mechanism and preventing the scraper 21 from shaking up and down during use.

[0027] Please see Figure 4 , Figure 5 and Figure 9 The unlocking mechanism includes a slide rod 6 rotatably connected to one side of the synchronizing block 52 via a pin. The slide rod 6 is rotatably connected to the synchronizing block 52 via a pin, and the slide rod 6 can drive the synchronizing block 52 to slide back and forth along the moving groove 43. One end of the slide rod 6 passes through the circular hole 44 and is fixedly connected to the limit block 61, and the slide rod 6 is slidably connected to the circular hole 44. The annular sleeve 54 has symmetrical slots 55 on the side away from the locking spring 53, and the two ends of the limit block 61 are respectively engaged with the two slots 55.

[0028] When the annular limiting crown gear 51 engages with the annular fixed crown gear 5, the self-locking mechanism locks the tilt adjustment mechanism, and the limiting block 61 engages with the slot 55. When it is necessary to move the self-locking mechanism to unlock the tilt adjustment mechanism, the limit block 61 is pulled to move the limit block 61 out of the slot 55. The limit block 61 moves the synchronizing block 52 through the slide rod 6. The synchronizing block 52 causes the annular limiting crown gear 51 to separate from the annular fixed crown gear 5. The annular limiting crown gear 51 compresses the locking spring 53. Next, rotate the limiting block 61 by a certain angle to displace the limiting block 61 from the slot 55. Then release the limiting block 61. Under the action of the locking spring 53, push the annular limiting crown gear 51 back a certain distance. However, at this time, the annular limiting crown gear 51 and the annular fixed crown gear 5 are still separated. The annular limiting crown gear 51 drives the slide rod 6 back through the synchronizing block 52. The slide rod 6 drives the limiting block 61 to abut against the annular sleeve 54, so that the synchronizing block 52 and the annular limiting crown gear 51 cannot continue to move back. At this time, the round rod 42 can be rotated as needed to adjust the scraper 21.

[0029] When it is necessary to lock the self-locking mechanism on the round rod 42 again, rotate the limiting block 61 to align the limiting block 61 with the slot 55. Under the action of the locking spring 53, the annular limiting crown gear 51 engages with the annular fixed crown gear 5. The annular limiting crown gear 51 drives the slide rod 6 to move through the synchronizing block 52. The slide rod 6 drives the limiting block 61 to engage with the slot 55, thereby completing the locking of the tilt adjustment mechanism by the self-locking mechanism.

[0030] Please see Figures 2 to 4 , Figure 8 and Figure 10 The front and rear adjustment mechanism includes a sliding sleeve 7. One sliding sleeve 7 close to the adjustment seat 3 is fixedly connected to the adjustment seat 3, and the other sliding sleeve 7 far from the adjustment seat 3 is fixedly connected to the adjacent convex slider 24 through a synchronous frame. The upper end of the sliding sleeve 7 is fixedly connected to the synchronous frame, and the synchronous frame is fixedly connected to the adjacent convex slider 24. A driving cylinder 71 is inserted through the inner side of the sliding sleeve 7. The cylindrical surface of the driving cylinder 71 has two spiral grooves 73 arranged in a ring array. Both ends of the driving cylinder 71 are rotatably connected to a fixing block 72 through a rotating shaft. The fixing block 72 is fixedly connected to the support frame 1. The driving cylinder 71 is fixedly connected to the rotating shaft. The rotating shaft and the fixing block 72 are rotatably connected through a bearing. One end of one of the rotating shafts passes through the fixing block 72 and is fixedly sleeved with a synchronous bevel gear 75. The driving mechanism is located on the side of the synchronous bevel gear 75. The inner side of the sliding sleeve 7 is symmetrically fixedly connected with transmission rods 74. The two transmission rods 74 extend into the two spiral grooves 73 respectively. Rollers are rotatably installed on the outer side of the transmission rods 74, and the rollers are in rolling connection with the spiral grooves 73.

[0031] Please see Figures 1 to 3 The front and rear adjustment mechanism is fitted with a protective shell 12 on its outer side. The two front and rear adjustment mechanisms are respectively installed in the two protective shells 12. The protective shell 12 is fixedly connected to the support frame 1. The upper end of the protective shell 12 is provided with a clearance groove, which will not hinder the normal front and rear movement of the adjustment seat 3, the synchronization frame and the sliding sleeve 7. The two ends of the drive mechanism extend into the two protective shells 12 respectively.

[0032] The drive mechanism drives two synchronous bevel gears 75 to rotate synchronously. The two synchronous bevel gears 75 drive two drive cylinders 71 to rotate via a rotating shaft. When the drive cylinders 71 rotate, they drive the spiral grooves 73 on their sides to rotate. When the spiral grooves 73 rotate, they push the rollers to move. The rolling motion pushes the sliding sleeves 7 to move via the transmission rod 74. One of the sliding sleeves 7 drives a convex slider 24 to move via the adjusting seat 3. The other sliding sleeve 7 drives another convex slider 24 to move via the synchronous frame, thereby causing the two convex sliders 24 to move back and forth. The two convex sliders 24 drive the scraper 21 to move back and forth via the crossbar 2, thereby adjusting the back and forth position of the scraper 21.

[0033] Please see Figures 1 to 4 , Figure 10 The drive mechanism includes a round shaft 8 that is inserted through the side of the support frame 1. A transmission bevel gear 81 is fixedly sleeved on the outside of the round shaft 8. The transmission bevel gear 81 meshes with an adjacent synchronous bevel gear 75. The transmission bevel gear 81 is installed in the inner cavity of the protective shell 12. The two ends of the round shaft 8 pass through the two protective shells 12 respectively. The round shaft 8 is rotatably connected to the support frame 1 and the protective shell 12 respectively through bearings. A crank handle 82 is fixedly connected to one end of one of the round shafts 8. An internal threaded sleeve 83 is inserted through the side of the crank handle 82. A fastening bolt 84 is installed on the inner thread of the internal threaded sleeve 83. One end of the fastening bolt 84 abuts against the outer surface of the protective shell 12.

[0034] When it is necessary to adjust the front and rear position of the scraper 21, first unscrew the fastening bolt 84 outward along the internal thread sleeve 83 so that the end of the fastening bolt 84 does not abut against the protective shell 12. At this time, turn the crank handle 82 to drive the round shaft 8 to rotate. The round shaft 8 drives the two transmission bevel gears 81 on it to rotate. The transmission bevel gears 81 drive the synchronous bevel gear 75 to rotate. Through the drive mechanism, the front and rear adjustment mechanism is moved, thereby adjusting the front and rear position of the scraper 21. After the adjustment is completed, screw the fastening bolt 84 back into the internal thread sleeve 83 so that the end of the fastening bolt 84 abuts against the protective shell 12, thereby locking the crank handle 82.

[0035] The scraper 21 lifts the material from the bottom and applies slight pressure, forcing the material to return to flatness before entering the cutting edge; by adjusting the distance between the scraper 21 and the cutting edge, the material is pre-set at an appropriate position; by adjusting the contact angle and pressure distribution between the scraper and the material, targeted correction is performed for different warping directions; ensuring that the material enters the die-cutting area in a completely flat state, avoiding cutting deviation, incomplete cutting, or cutting position offset caused by uneven material.

[0036] When it is necessary to adjust the scraper 21 to move back and forth, first release the locking mechanism from locking the convex slider 24. At this time, the drive mechanism drives the front and back adjustment mechanism to rotate, and the front and back adjustment mechanism drives the two convex sliders 24 to move back and forth synchronously. At this time, the two convex sliders 24 slide along the convex groove 11. The two convex sliders 24 drive the scraper 21 to move back and forth through the crossbar 2, thereby completing the front and back adjustment of the scraper 21. After the adjustment is completed, the locking mechanism locks the convex sliders 24 to prevent the scraper 21 from shaking back and forth during the operation. When it is necessary to adjust the tilt of the scraper 21, first release the self-locking mechanism from locking the tilt adjustment mechanism, then rotate the tilt adjustment mechanism. The tilt adjustment mechanism drives the crossbar 2 to rotate, and the crossbar 2 drives the scraper 21 to swing up or down to adjust the tilt angle of the scraper 21. After the adjustment is completed, lock the self-locking mechanism to prevent the scraper 21 from shaking up and down during operation.

[0037] Working principle: When the scraper 21 needs to be adjusted back and forth, first unscrew the locking bolts 34 on the two locking seats 32 to loosen the head of the locking bolts 34 from locking the locking seats 32, and then unscrew the fastening bolts 84 outward along the internal thread sleeve 83 so that the end of the fastening bolts 84 does not abut against the protective shell 12. Turn the crank handle 82 again to make the drive mechanism drive the two front and rear adjustment mechanisms to rotate. The two front and rear adjustment mechanisms drive the adjustment seat 3 and the synchronous frame to move. The adjustment seat 3 and the synchronous frame drive the two convex sliders 24 to move back and forth synchronously. The two convex sliders 24 drive the scraper 21 to move back and forth through the crossbar 2, thereby adjusting the front and rear position of the scraper 21. After the adjustment is completed, reset the fastening bolt 84 and the locking bolt 34 to lock the crank handle 82 and the locking seat 32 again, thereby locking the drive mechanism and the two convex sliders 24 to prevent the scraper 21 from shaking back and forth during the operation of the equipment. The gap between the scraper 21 and the die-cutting roller can be precisely adjusted by the combination of the drive mechanism and the front and rear adjustment mechanism.

[0038] When the tilt angle of the scraper 21 needs to be adjusted, first pull the limiting block 61 out of the slot 55, then rotate the limiting block 61 by a certain angle. The unlocking mechanism drives the annular limiting crown gear 51 to separate from the annular fixed crown gear 5. At this time, rotating the annular sleeve 54 drives the round rod 42 to rotate, the round rod 42 drives the worm gear 41 to rotate, the worm gear 41 drives the worm wheel 4 to rotate, and the worm wheel 4 drives the scraper 21 to swing up or down through the crossbar 2, thereby adjusting the tilt angle of the scraper 21. After the adjustment is completed, rotate the limiting block 61 to align with the slot 55. Under the action of the locking spring 53, the annular limiting crown gear 51 engages with the annular fixed crown gear 5, thereby locking the tilt adjustment mechanism with the self-locking mechanism to prevent the scraper 21 from shaking up and down during operation.

[0039] The tilt adjustment mechanism can precisely adjust the up-and-down swing angle of the scraper 21, thereby ensuring uniform gaps throughout the die-cutting machine and thus guaranteeing its processing accuracy.

[0040] Compared with the traditional method of manually pushing the scraper 21 to adjust its position, the scraper 21 can be adjusted precisely by using a drive mechanism, a front and rear adjustment mechanism, and a tilt adjustment mechanism.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A die-cutting machine cutting surface gap adjustment mechanism, comprising a support frame (1), characterized in that: The support frame (1) has symmetrical convex grooves (11) on its two inner sidewalls. A crossbar (2) is provided between the two convex grooves (11). A scraper (21) is fixedly installed on the outer side of the crossbar (2). An extension plate (22) is fixedly sleeved on the outer side of both ends of the crossbar (2). A support roller (23) is rotatably installed between the two extension plates (22). Convex sliders (24) are symmetrically rotatably installed at both ends of the crossbar (2) through bearings. The convex sliders (24) are slidably connected to the adjacent convex grooves (11). An adjusting seat (3) is fixedly connected to the side of one of the convex sliders (24). A locking mechanism is connected to the upper end of the other convex slider (24) and the adjusting seat (3). A rotating groove (31) is provided on the inner side of the adjusting seat (3). An inclined adjustment mechanism for rotating the adjusting crossbar (2) is installed in the adjusting seat (3). A self-locking mechanism is installed at one end of the inclined adjustment mechanism. Two convex sliders (24) are each equipped with a front-to-back adjustment mechanism on the side away from each other, and one end of the two front-to-back adjustment mechanisms is connected to the drive mechanism.

2. The die-cutting machine cutting surface gap adjustment mechanism according to claim 1, characterized in that: The locking mechanism includes a locking seat (32), a translation groove (33) is provided through the side of the locking seat (32), a locking bolt (34) is inserted through the translation groove (33), one end of the locking bolt (34) is threaded and connected to the support frame (1), and the head of the locking bolt (34) abuts against the side of the locking seat (32).

3. The die-cutting machine cutting surface gap adjustment mechanism according to claim 1, characterized in that: One end of the crossbar (2) extends through the adjusting seat (3) into the rotating groove (31). The tilting adjustment mechanism includes a worm wheel (4) rotatably installed in the rotating groove (31). The worm wheel (4) is fixedly sleeved on the outside of the crossbar (2). The upper end of the worm wheel (4) is engaged with a worm (41). The worm (41) is rotatably connected to the adjusting seat (3). One end of the worm (41) is fixedly connected to a round rod (42). A moving groove (43) is opened through the side of the round rod (42). A circular hole (44) is opened at the end of the round rod (42) away from the worm (41). The circular hole (44) communicates with the moving groove (43). The self-locking mechanism is set on the round rod (42).

4. The die-cutting machine cutting surface gap adjustment mechanism according to claim 3, characterized in that: The self-locking mechanism includes an annular fixed crown gear (5), an annular limiting crown gear (51), a locking spring (53), and an annular sleeve (54) sequentially sleeved on the outside of the round rod (42). The annular fixed crown gear (5) is fixedly connected to the adjusting seat (3). The annular fixed crown gear (5) and the annular limiting crown gear (51) are engaged. The annular sleeve (54) is fixedly sleeved on the end of the round rod (42) away from the adjusting seat (3). The two ends of the locking spring (53) abut against the annular sleeve (54) and the annular limiting crown gear (51) respectively. A synchronizing block (52) is fixedly connected to the inner side of the annular limiting crown gear (51). The synchronizing block (52) passes through the moving groove (43) and is slidably connected to the moving groove (43). An unlocking mechanism is installed on the synchronizing block (52).

5. The die-cutting machine cutting surface gap adjustment mechanism according to claim 4, characterized in that: The unlocking mechanism includes a slide rod (6) rotatably connected to one side of the synchronizing block (52) via a pin. One end of the slide rod (6) passes through a circular hole (44) and is fixedly connected to a limiting block (61). The annular sleeve (54) has symmetrical slots (55) on the side away from the locking spring (53). The two ends of the limiting block (61) are respectively engaged with the two slots (55).

6. The die-cutting machine cutting surface gap adjustment mechanism according to claim 1, characterized in that: The front and rear adjustment mechanism includes a sliding sleeve (7), and a driving cylinder (71) is inserted through the inner side of the sliding sleeve (7). The cylindrical surface of the driving cylinder (71) has two spiral grooves (73) arranged in a ring array. Both ends of the driving cylinder (71) are rotatably connected to a fixed block (72) through a rotating shaft. The fixed block (72) is fixedly connected to the support frame (1). One end of one of the rotating shafts passes through the fixed block (72) and is fixedly sleeved with a synchronous bevel gear (75). The driving mechanism is located on the side of the synchronous bevel gear (75). The inner side of the sliding sleeve (7) is symmetrically fixedly connected with transmission rods (74), and the two transmission rods (74) extend into the two spiral grooves (73) respectively. Rollers are rotatably installed on the outer side of the transmission rods (74), and the rollers are in rolling connection with the spiral grooves (73).

7. The die-cutting machine cutting surface gap adjustment mechanism according to claim 6, characterized in that: The outer side of the front and rear adjustment mechanism is fitted with a protective shell (12), which is fixedly connected to the support frame (1). The upper end of the protective shell (12) is provided with a clearance groove, which will not hinder the normal front and rear movement of the adjustment seat (3), the synchronization frame and the sliding sleeve (7). The two ends of the drive mechanism extend into the two protective shells (12) respectively.

8. The die-cutting machine cutting surface gap adjustment mechanism according to claim 7, characterized in that: The drive mechanism includes a round shaft (8) that is inserted through the side of the support frame (1). A transmission bevel gear (81) is fixedly sleeved on the outside of the round shaft (8). The transmission bevel gear (81) meshes with an adjacent synchronous bevel gear (75). The two ends of the round shaft (8) pass through two protective shells (12). One end of one of the round shafts (8) is fixedly connected to a crank handle (82). An internal threaded sleeve (83) is inserted through the side of the crank handle (82). A fastening bolt (84) is installed on the inner thread of the internal threaded sleeve (83). One end of the fastening bolt (84) abuts against the outer surface of the protective shell (12).

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