CN112238598A

CN112238598A - Embossing machine

Info

Publication number: CN112238598A
Application number: CN202011163643.XA
Authority: CN
Inventors: 朱志阳; 朱志才; 陶小亮; 杨春; 王礼苗
Original assignee: Nanjing 3h Medical Co ltd
Current assignee: Nanjing 3h Medical Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-01-19

Abstract

The invention discloses an embossing machine which comprises a rack, an upper driving roller, a lower driving roller and an embossing driving device, wherein the surface of the upper driving roller is provided with a bulge for extruding patterns on an adhesive tape, two ends of the upper driving roller are rotatably arranged on the rack and are driven by the embossing driving device arranged on the rack to rotate on the rack, the upper driving roller rotates to extrude the patterns on the adhesive tape and convey the adhesive tape forwards, the lower driving roller is positioned below the upper driving roller and is used for supporting the adhesive tape from below, two ends of the lower driving roller and the rack form a vertical moving pair, two lifting driving devices are respectively arranged at two ends of the lower driving roller on the rack, and the two lifting driving devices drive the lower driving roller to synchronously and vertically move from two ends and are used for adjusting the distance between the upper driving roller and the lower driving. The lower driving roller is arranged below, the distance between the lower driving roller and the upper driving roller is adjusted through the up-and-down sliding of the lower driving roller below, and the moving precision of the lower driving roller is better controlled because the up-and-down moving roller is positioned below.

Description

Embossing machine

Technical Field

The invention relates to an embossing machine, and belongs to the technical field of adhesive tape manufacturing.

Background

The medical adhesive tape is a commonly used medical product, in order to ensure the air permeability and the tearability of the adhesive tape, in the manufacture of the adhesive tape, the embossing treatment of the adhesive tape is an extremely important step, the embossing of the adhesive tape is carried out on an embossing machine, the structure of the embossing machine comprises a frame and an upper driving roller and a lower driving roller, wherein, the upper driving roller is an embossing roller, the surface of the embossing roller is provided with a bulge for embossing patterns on the surface of the adhesive tape, the upper driving roller and the lower driving roller synchronously and reversely rotate, the embossing roller embosses the patterns on the upper surface of the adhesive tape while conveying the adhesive tape forwards, the position of the lower driving roller of the existing embossing machine is not adjustable, the upper driving roller can vertically slide on the frame, the distance between the upper driving roller and the lower driving roller is adjusted through the vertical movement of the upper driving roller, thereby the adhesive tape requirements of different thicknesses are met, the embossing machine in, the quality of tape manufacture needs to be further improved.

In the embossing machine in the prior art, in order to enable the two driving rollers to rotate in opposite directions, the upper driving roller and the lower driving roller are respectively driven by different motors, the structure is complex, the manufacturing cost is relatively high, and the synchronous control of the rotation of the upper driving roller and the rotation of the lower driving roller is relatively difficult.

Disclosure of Invention

The invention aims to provide an embossing machine, which solves the technical defect of poor embossing quality of an adhesive tape caused by low control precision of the distance between an upper driving roller and a lower driving roller of the embossing machine in the prior art.

In order to solve the problems, the technical scheme adopted by the invention is as follows: the coining mill, its characterized in that: the automatic embossing machine comprises a frame, go up the drive roller, lower drive roller and knurling drive arrangement, it is provided with the arch that is used for extruding the decorative pattern on the sticky tape to go up the drive roller surface, the both ends of going up the drive roller all rotate and set up in the frame and rotate in the frame by the knurling drive arrangement drive of installing in the frame, the rotation of going up the drive roller is used for extruding the decorative pattern on the sticky tape and carry the sticky tape forward, the below that the lower drive roller is located the drive roller is used for supporting the sticky tape from the below, the both ends of lower drive roller constitute vertical migration pair with the frame, it respectively is provided with a lift drive arrangement to lie in lower drive roller both ends department in the frame, two lift drive arrangements are used for adjusting the distance between drive roller. According to the invention, the lower driving roller is adjusted up and down, and the lower driving roller is positioned below the upper driving roller, so that the up-and-down movement precision of the lower driving roller is well controlled, the embossing effect of the adhesive tape is improved, and the embossing quality of the adhesive tape is improved.

As a further improvement of the invention, the embossing driving device also drives the lower driving roller to rotate simultaneously, and the upper driving roller and the lower driving roller rotate at the same speed and in opposite directions. The upper driving roller and the lower driving roller synchronously rotate in opposite directions, so that forward conveying is facilitated during embossing of the adhesive tape.

As a further improvement of the invention, two ends of the lower driving roller are respectively provided with a lower sliding block, the lower driving roller rotates relative to the lower sliding blocks, the lower sliding blocks are arranged on the rack in a sliding manner, the two lifting driving devices respectively drive the two lower sliding blocks to synchronously lift on the rack, and the lower driving roller moves up and down along with the lifting of the lower sliding blocks. The lifting driving device drives the lower sliding blocks to slide up and down on the rack, so that the position of the lower driving roller is adjusted.

As a further improvement of the invention, two sides of the lower sliding block are respectively provided with a sliding groove which penetrates through the upper part and the lower part of the lower sliding block, two guide rails are detachably arranged on the rack along the vertical direction, and the two guide rails are respectively matched with the sliding grooves at the two sides of the lower sliding block to ensure that the lower sliding block vertically slides along the guide rails. The two guide rails are used for limiting the sliding guide of the lower sliding block and ensuring that the lower sliding block slides in the vertical direction, and the two guide rails are used for limiting the lower sliding block from two sides of the lower sliding block, so that the structural stability of the sliding guide device is improved.

As a further improvement of the invention, the lifting driving device is a driving air cylinder, the cylinder body of the driving air cylinder is detachably arranged on the frame, the piston rod of the driving air cylinder is vertically upwards arranged and vertically extends and retracts, the free end of the piston rod of the driving air cylinder is connected with the bottom end of the lower sliding block, and the extension or retraction of the piston rod of the driving air cylinder drives the lower sliding block to upwards or downwards slide. The lower sliding block is driven to slide upwards or downwards by the extension and contraction of the piston rod of the driving cylinder, the driving cylinder is convenient to mount, and the structure of the invention is simplified on the whole.

As a further improvement of the embossing device, the embossing device further comprises an expanding device, a first chain wheel is arranged on the upper driving roller, a second chain wheel is arranged on the lower driving roller, a driving chain wheel is arranged on an output shaft of the embossing driving device, the expanding device comprises the expanding chain wheel, an expanding frame and a spring, the expanding frame is rotatably arranged on the rack, the expanding chain wheel is rotatably arranged at one end of the expanding frame, the spring is connected with the other end of the expanding frame and the rack, chains are wound on the driving chain wheel, the first chain wheel, the second chain wheel and the expanding chain wheel, the embossing driving device drives the driving chain wheel, the first chain wheel, the second chain wheel and the expanding chain wheel to rotate through the chains, the expanding frame rotates along with the vertical movement of the lower driving roller to pull the chains, and the spring is always in an extending state and extends or contracts along with the rotation of. The invention is provided with the expansion device, and the spring in the expansion device is always in an extension state and always pulls the expansion frame, so that the chain is always in a tensioning state, the chain is prevented from loosening and slipping when the lower driving roller moves up and down, and the continuous embossing of the adhesive tape is ensured.

As a further improvement of the invention, the expansion frame comprises a first expansion frame unit and a second expansion frame unit, the first expansion frame unit and the second expansion frame unit are arranged at an angle, the stand is provided with an expansion support seat, and the joint of the first expansion frame unit and the second expansion frame unit is rotatably connected with the expansion support seat. The invention is provided with the expansion supporting seat, thereby facilitating the installation of the expansion bracket.

As a further improvement of the invention, the lower sliding block is provided with a through hole penetrating through two sides of the lower sliding block, two ends of the through hole are respectively provided with a groove coaxial with the through hole, a bearing is arranged in the groove, the lower driving roller penetrates through the through hole and is matched with an inner ring of the bearing, and two sides of the lower sliding block are detachably provided with press rings for fixing the bearing in the groove. In the invention, the support shaft is connected with the lower sliding block by adopting a bearing, so that the support shaft and the lower sliding block can rotate conveniently.

As a further improvement of the invention, the top of the lower sliding block is provided with more than one limit bolt for adjusting the adjustable minimum distance between the upper driving roller and the lower driving roller. The invention is provided with the limiting bolt, the height of the limiting bolt can be properly adjusted according to the thickness of the adhesive tape to be embossed, so that the thickness of the adhesive tape cannot be reduced due to extrusion when the lower sliding block slides upwards to the minimum distance between the lower driving roller and the upper driving roller, and the quality of the adhesive tape is ensured.

As a further improvement of the invention, the embossing device further comprises a conveying roller, wherein two ends of the conveying roller are rotatably arranged on the machine frame and used for supporting the adhesive tape during embossing. The invention is provided with the conveying roller to support the adhesive tape to be embossed, thereby further improving the embossing quality of the adhesive tape.

In conclusion, the beneficial effects of the invention are as follows: the lower driving roller is arranged below the embossing tape, the distance between the lower driving roller and the upper driving roller is adjusted through the up-and-down sliding of the lower driving roller, the moving precision of the up-and-down moving roller is better controlled because the up-and-down moving roller is arranged below the embossing tape, and the embossing tape is uniform in thickness and better in quality.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

FIG. 2 is a schematic representation of an internal drive configuration reflecting the present invention.

Fig. 3 is a partially enlarged view at B in fig. 2.

Fig. 4 is a schematic view of the lower drive roller mounting in response to the present invention.

Fig. 5 is a partially enlarged view of a portion a in fig. 4.

Wherein: 1. a frame; 101. a left vertical plate; 102. a right vertical plate; 103. a fixed block; 104. pressing a plate; 105. a connecting seat; 106. a connecting rod; 107 connecting the beams; 108. a left box body; 109. a right box body; 2. an upper drive roller; 3. a lower drive roller; 4. an embossing drive device; 5. a lift drive; 6. a lower slide block; 7. a guide rail; 8. a first sprocket; 9. a second sprocket; 10. expanding and tightening the chain wheel; 11. a spring; 12. a chain; 13. a first expansion bracket unit; 14. a second expansion bracket unit; 15. expanding the supporting seat; 16. a bearing; 17. pressing a ring; 18. a limit bolt; 19. a conveying roller; 20. an upper slide block; 21. a drive sprocket; 22. a drive motor; 23. and a speed reducer.

Detailed Description

The following further describes embodiments of the present invention with reference to the drawings.

The embossing machine shown in fig. 1 to 5 comprises a machine frame 1, an upper driving roller 2, a lower driving roller 3 and an embossing driving device 4, wherein protrusions for pressing patterns on an adhesive tape are arranged on the surface of the upper driving roller 2, two ends of the upper driving roller 2 are rotatably arranged on the machine frame 1, the upper driving roller 2 is positioned above the lower driving roller 3, the lower driving roller 3 and the machine frame 1 form a vertical moving pair, lifting driving devices 5 are arranged at two ends of the lower driving roller 3 on the machine frame 1, the lifting driving devices 5 drive the lower driving roller 3 to vertically move for adjusting the distance between the upper driving roller 2 and the lower driving roller 3, and the embossing driving device 4 drives the upper driving roller 2 to rotate. The machine frame 1 comprises a left vertical plate 101, a right vertical plate 102 and more than two connecting beams 107 for connecting the left vertical plate 101 and the right vertical plate 102, the number of the connecting beams 107 in the machine frame is three, wherein the two connecting beams 107 are connected with the upper parts of the left vertical plate 101 and the right vertical plate 102, two ends of another connecting beam 107 are respectively connected with the lower parts of the left vertical plate 101 and the right vertical plate 102, a mounting groove which extends across the left side and the right side of the left vertical plate 101 is formed in the left vertical plate 101 from the top end downwards, the mounting groove comprises an upper mounting unit and a lower mounting unit, the width of the upper mounting unit is larger than that of the lower mounting unit, a front fixing block 103 and a rear fixing block 103 are welded at the top of the lower mounting unit, the lifting driving device 5 is detachably mounted on the fixing block 103, and.

The embossing driving device 4 of the invention also drives the lower driving roller 3 to rotate simultaneously, the upper driving roller 2 and the lower driving roller 3 of the invention have the same diameter, and the upper driving roller 2 and the lower driving roller 3 rotate at the same speed and in opposite directions.

The invention realizes that the specific structure of the sliding connection between the lower driving roller 3 and the frame 1 is as follows: two ends of the lower driving roller 3 are respectively provided with a lower sliding block 6, the lower driving roller 3 rotates relative to the lower sliding blocks 6, the lower sliding blocks 6 are arranged on the rack 1 in a sliding manner, the left vertical plate 101 and the right vertical plate 102 are respectively provided with a lifting driving device 5, and the two lifting driving devices 5 respectively drive the two lower sliding blocks 6 to synchronously lift on the left vertical plate 101 and the right vertical plate 102. The two sides of the lower sliding block 6 are respectively provided with a sliding groove (not shown in the figure) which penetrates through the upper sliding block and the lower sliding block, two guide rails 7 are detachably arranged on the rack 1 along the vertical direction, the two guide rails 7 are respectively matched with the two sliding grooves, the guide rails 7 in the invention are detachably arranged on the opposite surfaces of the upper mounting units by adopting bolts, and the bottoms of the guide rails 7 are connected with the fixing blocks 103.

The lifting driving device 5 preferably adopts two driving cylinders, the cylinder body of each driving cylinder is detachably mounted on a fixing block 103 on the rack 1 by bolts, the piston rods of the driving cylinders are vertically arranged and vertically extend, the free ends of the piston rods of the driving cylinders are connected with the bottom end of the lower slide block 6, and the extension or contraction of the piston rods of the driving cylinders drives the lower slide blocks 6 to slide upwards or downwards so as to drive the lower driving rollers 3 mounted on the lower slide blocks 6 to move up and down.

The specific structure of the embossing driving device 4 for driving the upper driving roller 2 and the lower driving roller 3 to rotate is as follows: the embossing driving device 4 comprises a driving motor 22 and a speed reducer 23, the speed reducer 23 is arranged on the frame 1, the driving motor 22 is arranged on the top of the speed reducer 23, the output shaft of the driving motor 22 is connected with the input shaft of the speed reducer 23, the driving sprocket 21 is installed on the output shaft of the speed reducer 23, the expansion bracket rotates along with the up-and-down movement of the lower driving roller 3, the spring 11 in the invention is always in an extension state and extends or contracts along with the rotation of the expansion bracket, the contraction of the spring 11 is the contraction based on the extension, namely when the lower driving roller 3 moves upwards or downwards at any position, the spring 11 is in an extension state. The expansion frame comprises a first expansion frame unit 13 and a second expansion frame unit 14, the first expansion frame unit 13 and the second expansion frame unit 14 are arranged at an angle, the first expansion frame unit 13 and the second expansion frame unit 14 are preferably integrally formed and are mutually perpendicular and are L-shaped integrally, a plurality of bolts are detachably arranged on a left vertical plate 101 of the frame 1 to form an expansion support seat 15, the expansion support seat 15 comprises an installation plate and a rotating shaft, the installation plate is detachably arranged on the left vertical plate 101 through bolts, one end of the rotating shaft is welded and fixed on the installation plate, and the joint of the first expansion frame unit 13 and the second expansion frame unit 14 is rotatably connected with the rotating shaft of the expansion support seat 15. The invention is characterized in that a wheel shaft is arranged at one end of a first expansion frame unit 13 far away from a second expansion frame unit 14, an expansion chain wheel 10 is rotatably arranged on the wheel shaft, one end of a spring 11 is hooked at one end of the second expansion frame unit 14 far away from the first expansion frame unit 13, a connecting seat 105 is fixedly welded at the lower part of a left vertical plate 101, a connecting rod 106 is fixedly welded on the connecting seat 105, and one end of the spring 11 far away from the second expansion frame unit 14 is hooked on the connecting rod 106.

The specific structure for connecting the lower driving roller 3 and the lower slider 6 is as follows: the lower slider 6 is provided with a through hole penetrating through two sides of the lower slider, the diameter of the through hole is slightly larger than the driving diameter of the end part of the lower driving roller 3, two ends of the through hole are respectively provided with an annular groove which is coaxial with the through hole, a bearing 16 is arranged in the groove, the outer ring of the bearing 16 is matched with the groove, the lower driving roller 3 penetrates through the through hole and is matched with the inner ring of the bearing 16, and two sides of the lower slider 6 are detachably provided with press rings 17 by adopting a plurality of bolts for fixing the bearing 16 in the groove.

The two ends of the upper driving roller 2 are respectively provided with an upper sliding block 20, the structure of the upper sliding block 20 is the same as that of the lower sliding block 6 and is matched with the guide rail 7, the upper driving roller 2 is connected with the upper sliding block 20 in a rotating mode to realize relative rotation with the rack 1, the structure of the upper driving roller 2 connected with the upper sliding block 20 in a rotating mode is the same as that of the lower driving roller 3 connected with the lower sliding block 6 in the rotating mode, specifically, reference can be made to the connection of the lower driving roller 3, the description is omitted, the top of the upper sliding block 20 is detachably arranged on the pressing plate 104 through bolts, when the upper sliding block 20 is used, the position of the upper sliding block 20 on the rack 1 is fixed, and the relative change of the distance between the upper driving roller 2 and the lower driving roller 3.

The top of the lower sliding block 6 is provided with more than one limiting bolt 18 for adjusting the adjustable minimum distance between the upper driving roller 2 and the lower driving roller 3, the top of each lower sliding block 6 is preferably provided with two limiting bolts 18 in threaded fit with the top of each lower sliding block, before the use of the invention, the position of each limiting bolt 18 is adjusted, when the top end of each limiting bolt 18 is abutted against the lower surface of the upper sliding block 20, the distance between the upper driving roller 2 and the lower driving roller 3 is the adjustable minimum distance between the upper driving roller 2 and the lower driving roller 3, and when the lower sliding block 6 is driven by the driving cylinder to slide upwards until the limiting bolts 18 are abutted against the upper sliding block 20, the lower driving roller 3 can not slide upwards any.

In order to provide support for the adhesive tape in use, the invention is provided with the conveying roller 19, two ends of the conveying roller 19 are rotatably arranged on the left vertical plate 101 and the right vertical plate 102 of the machine frame 1 and are used for supporting the adhesive tape in embossing, when the invention is used, the adhesive tape is conveyed through the conveying roller 19, passes between the upper driving roller 2 and the lower driving roller 3, is conveyed forwards by the upper driving roller 2 and the lower driving roller 3, and is embossed on the upper surface of the adhesive tape by the upper driving roller 2. In order to improve the safety of use, a left box 108 and a right box 109 are respectively arranged at the left end and the right end of a frame 1, an embossing driving device 4 is arranged in the left box 108, an upper driving roller 2 and a lower driving roller 3 are heating rollers, the right ends of the upper driving roller 2 and the lower driving roller 3 are positioned in the right box 109 and are used for being connected with a heat conduction oil furnace, the structures of the upper driving roller 2 and the lower driving roller 3 are the prior art, the structures of the upper driving roller 2 and the lower driving roller 3 connected with the heat conduction oil furnace are also the prior art, the invention is not detailed, and an air compressor (not shown in the figure) is arranged in the right box and.

Before the embossing machine is used, the distance between the upper driving roller 2 and the lower driving roller 3 is adjusted through the extension or contraction of the piston rod of the lifting driving device 5 according to the thickness of an adhesive tape to be embossed, so that the distance between the upper driving roller 2 and the lower driving roller 3 is suitable for embossing patterns on the adhesive tape, the position of the second chain wheel 9 in the vertical direction changes, the slack or tension of the chain 12 changes, and when the chain 12 is slack, the spring 11 contracts to pull the expansion chain wheel 10 to rotate in the direction away from the second chain wheel 9, so that the chain 12 is tensioned; when the chain 12 is tightened, the chain 12 pulls the tightening sprocket 10 to rotate towards the direction close to the second sprocket 9, at the moment, the tightening bracket rotates, the pulling spring 11 extends, and the chain 12 is ensured to be at a proper tightening degree.

Parts which are not specifically described in the above description are prior art or can be realized by the prior art. The specific embodiments of the present invention are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention. That is, all equivalent changes and modifications made according to the contents of the claims of the present invention should be regarded as the technical scope of the present invention.

Claims

1. The coining mill, its characterized in that: comprises a frame (1), an upper driving roller (2), a lower driving roller (3) and an embossing driving device (4), wherein the surface of the upper driving roller (2) is provided with a bulge for extruding patterns on an adhesive tape, the two ends of the upper driving roller (2) are rotatably arranged on the frame (1) and are driven by the embossing driving device (4) arranged on the frame (1) to rotate on the frame (1), the upper driving roller (2) rotates to extrude the patterns on the adhesive tape and convey the adhesive tape forwards, the lower driving roller (3) is positioned below the upper driving roller (2) and is used for supporting the adhesive tape from below, the two ends of the lower driving roller (3) and the frame (1) form a vertical moving pair, the two ends of the frame (1) positioned on the lower driving roller (3) are respectively provided with a lifting driving device (5), the two lifting driving devices (5) drive the lower driving rollers (3) to synchronously and vertically move from two ends so as to adjust the distance between the upper driving rollers (2) and the lower driving rollers (3).

2. The embossing machine according to claim 1, characterized in that: the embossing driving device (4) also drives the lower driving roller (3) to rotate simultaneously, and the upper driving roller (2) and the lower driving roller (3) rotate at the same speed and in opposite directions.

3. The embossing machine according to claim 2, characterized in that: two ends of the lower driving roller (3) are respectively provided with a lower sliding block (6), the lower driving roller (3) rotates relative to the lower sliding blocks (6), the lower sliding blocks (6) are arranged on the rack (1) in a sliding mode, the two lifting driving devices (5) respectively drive the two lower sliding blocks (6) to synchronously lift on the rack (1), and the lower driving roller (3) moves up and down along with the lifting of the lower sliding blocks (6).

4. The embossing machine according to claim 3, characterized in that: the two sides of the lower sliding block (6) are respectively provided with a sliding groove penetrating through the upper part and the lower part of the lower sliding block, the rack (1) is detachably provided with two guide rails (7) along the vertical direction, and the two guide rails (7) are respectively matched with the sliding grooves on the two sides of the lower sliding block (6) to enable the lower sliding block (6) to vertically slide along the guide rails (7).

5. The embossing machine according to claim 3, characterized in that: the lifting driving device (5) is a driving cylinder, a cylinder body of the driving cylinder is detachably mounted on the rack (1), a piston rod of the driving cylinder is vertically upwards arranged and vertically extends, the free end of the piston rod of the driving cylinder is connected with the bottom end of the lower sliding block (6), and the extension or contraction of the piston rod of the driving cylinder drives the lower sliding block (6) to upwards or downwards slide.

6. The embossing machine according to claim 3, characterized in that: the embossing device comprises an upper driving roller (2), a lower driving roller (3), a first chain wheel (8), a second chain wheel (9), a driving chain wheel (21), a spring (11), an expanding frame and a chain (12), wherein the upper driving roller (2) is provided with the first chain wheel (8), the lower driving roller (3) is provided with the second chain wheel (9), the output shaft of the embossing driving device (4) is provided with the driving chain wheel (21), the expanding frame comprises the expanding chain wheel (10), the expanding frame and the spring (11), the expanding frame is rotatably arranged on a rack (1), the expanding chain wheel (10) is rotatably arranged at one end of the expanding frame, the spring (11) is connected with the other end of the expanding frame and the rack (1), the driving chain wheel (21), the first chain wheel (8), the second chain wheel (9) and the expanding chain wheel (10) are wound with the chain (12), the embossing driving device (4) drives the driving chain wheel (21), the first chain wheel (8), the second chain wheel (, the spring (11) is always in an extension state and extends or contracts along with the rotation of the expansion bracket.

7. The embossing machine according to claim 6, characterized in that: the expansion frame comprises a first expansion frame unit (13) and a second expansion frame unit (14), the first expansion frame unit (13) and the second expansion frame unit (14) are arranged at an angle, an expansion support seat (15) is arranged on the rack (1), and the joint of the first expansion frame unit (13) and the second expansion frame unit (14) is rotatably connected with the expansion support seat (15).

8. The embossing machine according to any one of claims 3 to 7, characterized in that: the lower sliding block (6) is provided with a through hole penetrating through two sides of the lower sliding block, two ends of the through hole are provided with grooves coaxial with the through hole, a bearing (16) is arranged in each groove, the lower driving roller (3) penetrates through the through hole and is matched with an inner ring of the bearing (16), and two sides of the lower sliding block (6) are detachably provided with press rings (17) for fixing the bearing (16) in the grooves.

9. The embossing machine according to claim 8, characterized in that: the top of the lower sliding block (6) is provided with more than one limiting bolt (18) for adjusting the adjustable minimum distance between the upper driving roller (2) and the lower driving roller (3).

10. The embossing machine according to any one of claims 1 to 7, characterized in that: the embossing machine further comprises a conveying roller (19), wherein two ends of the conveying roller (19) are rotatably arranged on the rack (1) and used for supporting the adhesive tape during embossing.