Adjusting structure of die-cutting machine

Abstract

The utility model discloses an adjusting structure of a die-cutting machine, which relates to the technical field of die-cutting machines and comprises a rack, an indentation roller group and a die-cutting roller group are rotatably connected onto the rack, the indentation roller group comprises an upper indentation roller and a lower indentation roller, the die-cutting roller group comprises an upper die-cutting roller and a lower die-cutting roller, an upper indentation gear is arranged at the front end of the upper indentation roller, and a lower indentation gear is arranged at the rear end of the lower indentation roller. The front end of the lower creasing roller is provided with a lower creasing gear, the upper creasing gear is meshed with the lower creasing gear, the front end of the upper die cutting roller is provided with an upper die cutting gear, the front end of the lower die cutting roller is provided with a lower die cutting gear, the upper die cutting gear is meshed with the lower die cutting gear, and the front side of the rack is provided with a supporting plate and a height adjusting assembly used for adjusting the height of the supporting plate. An adjusting gear is arranged at the lower end of the supporting plate, and the lower creasing gear and the lower die cutting gear are both meshed with the adjusting gear. The die-cutting machine can be adjusted on line, the whole die-cutting machine does not need to be disassembled from a production line, and production efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of die-cutting machine technology, and specifically to an adjustment structure for a die-cutting machine. Background Technology

[0002] On the paper packaging box production line, after the packaging paper is printed by the color printing system, it is cut into the required shape by the die-cutting machine.

[0003] Die-cutting machines mainly include flatbed die-cutting machines, rotary flatbed die-cutting machines, and rotary rotary die-cutting machines. Among them, the rotary rotary die-cutting machine combines the characteristics of rotary and flatbed die-cutting, and has high flexibility and adaptability.

[0004] The rotary die-cutting machine includes a frame, on which a creasing roller assembly and a die-cutting roller assembly are rotatably connected. The creasing roller assembly includes an upper creasing roller and a lower creasing roller, both with creasing lines on their surfaces, which are raised pressure cutters protruding from the roller surface. The die-cutting roller assembly includes an upper die-cutting roller and a lower die-cutting roller, both with cutting lines on their surfaces, which are raised cutting cutters protruding from the roller surface.

[0005] During operation, the paper first passes through the gap between the upper and lower creasing rollers, where the creasing lines on the surfaces of the upper and lower creasing rollers press out indentations on the paper. Then, the paper passes through the gap between the upper and lower die-cutting rollers, where the cutting lines on the surfaces of the upper and lower die-cutting rollers cut the paper.

[0006] As working time increases, slight misalignment occurs between the creasing lines of the upper and lower creasing rollers, and between the cutting lines of the upper and lower die-cutting rollers. This reduces the creasing and die-cutting quality of the paper. When alignment adjustment is needed, the entire die-cutting machine must be disassembled from the production line. After disassembly, workers perform the adjustments, and then the entire die-cutting machine is reassembled. This adjustment process reduces production efficiency because it requires disassembling and reassembling the entire die-cutting machine from the production line. Utility Model Content

[0007] To address the aforementioned shortcomings of existing technologies, this invention proposes an adjustment structure for a die-cutting machine. This invention enables online adjustment without disassembling the entire die-cutting machine from the production line, thereby improving production efficiency.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] An adjustment structure for a die-cutting machine includes a frame, on which a creasing roller group and a die-cutting roller group are rotatably connected. The creasing roller group includes an upper creasing roller and a lower creasing roller, and the die-cutting roller group includes an upper die-cutting roller and a lower die-cutting roller. The front end of the upper creasing roller is provided with an upper creasing gear, and the front end of the lower creasing roller is provided with a lower creasing gear, which meshes with the upper creasing gear. The front end of the upper die-cutting roller is provided with an upper die-cutting gear, and the front end of the lower die-cutting roller is provided with a lower die-cutting gear, which meshes with the upper die-cutting gear. The front side of the frame is provided with a support plate and a height adjustment component for adjusting the height of the support plate. The lower end of the support plate is provided with an adjustment gear, and both the lower creasing gear and the lower die-cutting gear mesh with the adjustment gear.

[0010] Furthermore, the height adjustment assembly includes a height adjustment seat, a height adjustment screw, a limiting member, and a fixing member. The height adjustment seat is located on the top front side of the frame. The height adjustment screw is threaded onto the height adjustment seat. Two limiting members are provided at the bottom of the height adjustment screw. The top of the support plate is provided with two limiting holes and a rotating hole located between the two limiting holes. The height adjustment screw is rotatably engaged with the rotating hole, and the limiting members are rotatably engaged with the limiting holes. A fixing member is provided on the height adjustment seat to fix the height adjustment screw.

[0011] Furthermore, the fixing component includes a fixing seat, which is located on the top surface of the height adjustment seat. The fixing seat has a round hole in the middle and a slotted hole at one end. The round hole and the slotted hole are connected. The round hole is fitted onto the height adjustment screw, and the slotted hole divides the end of the fixing seat into two clamping blocks. The two clamping blocks are connected by fasteners.

[0012] Furthermore, the top of the height adjustment screw is provided with a prism.

[0013] Furthermore, the support plate is provided with a plurality of guide holes, and the front side of the frame is provided with a guide member. The guide member and the guide hole slide in a vertical direction. The front end of the guide member is provided with a blocking member, and the support plate is located between the frame and the blocking member.

[0014] Furthermore, a protective cover is provided on the front side of the frame, and the upper indentation gear, the lower indentation gear, the upper die-cutting gear, the lower die-cutting gear and the adjusting gear are all located inside the protective cover. The top wall of the protective cover is provided with a clearance hole, and the support plate is located inside the clearance hole.

[0015] Furthermore, the front side of the frame is provided with a mounting post, the front end of the mounting post is provided with a mounting screw, the mounting screw is threaded with a mounting nut, the protective cover is provided with a through hole, the through hole is fitted onto the mounting screw, and the side wall of the protective cover is sandwiched between the mounting nut and the mounting post.

[0016] Furthermore, the support plate is provided with a clearance hole, and the mounting post is provided in the clearance hole. The mounting post and the clearance hole slide in a vertical direction.

[0017] Furthermore, the frame is provided with first slide rails on both the front and rear sides, and a first slide block is provided in the first slide rail. The first slide block is rotatably connected to the upper indentation roller. A first adjusting rod is slidably connected to the top of the frame in the vertical direction. The bottom of the first adjusting rod is connected to the first slide block. A first adjusting seat is provided on the top of the frame. The first adjusting seat is provided with a first sleeve hole and a first strip hole that are connected. The first sleeve hole is fitted onto the first adjusting rod. The first strip hole divides one end of the first adjusting seat into two first blocks. The two first blocks are connected by fasteners.

[0018] Furthermore, the frame is provided with second slide rails on both the front and rear sides, and a second slide block is provided in the second slide rail. The second slide block is rotatably connected to the upper die-cutting roller. A second adjusting rod is slidably connected to the top of the frame in the vertical direction. The bottom of the second adjusting rod is connected to the second slide block. A second adjusting seat is provided on the top of the frame. The second adjusting seat is provided with a second sleeve hole and a second hole that are connected. The second sleeve hole is fitted onto the second adjusting rod. The second hole divides one end of the second adjusting seat into two second blocks. The two second blocks are connected by fasteners.

[0019] This utility model has the following beneficial effects:

[0020] 1. When the creasing lines of the upper and lower creasing rollers are slightly misaligned, or the cutting lines of the upper and lower die-cutting rollers are slightly misaligned, this invention eliminates the need to remove the entire die-cutting machine from the production line. Simply adjusting the height of the support plate drives the lower die-cutting gear and the lower creasing gear to rotate, which in turn drives the lower die-cutting roller and the lower creasing roller to rotate. This allows the creasing lines on the lower creasing roller to gradually align with the creasing lines on the upper creasing roller, and the cutting lines on the lower die-cutting roller to gradually align with the cutting lines on the upper die-cutting roller. This achieves online adjustment, saving time spent disassembling and assembling the entire die-cutting machine from the production line and improving production efficiency.

[0021] 2. The height adjustment component of this utility model is easy to use. By turning the height adjustment screw upward, the support plate and the adjustment gear on the support plate can be raised; by turning the height adjustment screw downward, the support plate and the adjustment gear on the support plate can be lowered.

[0022] 3. The fixing component in the height adjustment assembly can fix the current height of the height adjustment screw, and then fix the current height of the support plate and the adjusting gear, thereby improving the stability of the support plate and the adjusting gear at the current height, which is conducive to improving the reliability of equipment operation.

[0023] 4. When tightening the height adjustment screw, the worker can use a wrench to turn it on the prism. The prism is designed to facilitate the use of the wrench.

[0024] 5. When the support plate moves up and down, the guide can move up and down in the guide hole, and the blocking part can prevent the support plate from disengaging from the guide, thereby improving the stability of the support plate when adjusting the height.

[0025] 6. The protective cover prevents workers' clothes from getting caught, thus improving safety; the recessed holes prevent the protective cover from interfering with the height adjustment of the support plate.

[0026] 7. The protective cover can be easily installed by using mounting posts, mounting screws, and mounting nuts. Simply fit the through hole on the side wall of the protective cover onto the mounting screw, and then screw the mounting nut onto the mounting screw. After unscrewing the mounting nut, the protective cover can be removed, which facilitates the removal of the protective cover and makes it convenient to inspect and maintain the structure inside the protective cover.

[0027] 8. By setting the mounting column in the clearance hole on the support plate, the mounting column can be set in the middle of the front side of the frame without being obstructed by the support plate.

[0028] 9. By setting the first slide, the first slide block, the first adjusting rod, and the first adjusting seat, the distance between the upper and lower creasing rollers in the creasing roller group can be adjusted, which can adapt to paper of different thicknesses and expand the adaptability.

[0029] 10. By setting a second slide, a second slide block, a second adjusting rod, and a second adjusting seat, the distance between the upper and lower die-cutting rollers in the die-cutting roller group can be adjusted, which can adapt to paper of different thicknesses and expand the adaptability. Attached Figure Description

[0030] Figure 1 This is a 3D view showing the disassembled state of the adjustment structure and protective shell of a die-cutting machine.

[0031] Figure 2 This is a 3D view of the assembly state of the adjustment structure and protective shell of a die-cutting machine;

[0032] Figure 3 This is a front view of the adjustment structure of a die-cutting machine;

[0033] Figure 4 A three-dimensional adjustment structure for a die-cutting machine Figure 1 ;

[0034] Figure 5 yes Figure 4 A magnified view of a section at point A in the middle;

[0035] Figure 6 A three-dimensional adjustment structure for a die-cutting machine Figure 2 ;

[0036] Figure 7 yes Figure 6 A magnified view of a section at point B in the middle;

[0037] Figure 8 yes Figure 6 A magnified view of a section at point C.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1-Frame, 11-Screw, 111-Second Washer, 12-Mounting Post, 121-Mounting Screw, 1211-Mounting Nut, 13-First Slide Rail, 131-First Slide Mount, 14-Second Slide Rail, 141-Second Slide Mount

[0040] 21-Upper indentation roller, 211-Upper indentation gear, 22-Lower indentation roller, 221-Lower indentation gear

[0041] 31-Upper die-cutting roller, 311-Upper die-cutting gear, 32-Lower die-cutting roller, 321-Lower die-cutting gear

[0042] 4-Support plate, 41-Limiting hole, 42-Rotation hole, 43-Guide hole, 44-Lean-out hole

[0043] 5- Adjusting gear,

[0044] 61-Height adjustment seat, 62-Height adjustment screw, 621-Pyramid, 63-Limit ring, 631-First washer, 64-Fixing seat, 641-Round hole, 642-Slotted hole, 643-Clamping block

[0045] 7-Protective cover, 71-Allowing hole, 72-Through hole

[0046] 8-First adjusting rod, 81-First adjusting seat, 811-First sleeve hole, 812-First strip hole, 813-First block,

[0047] 9-Second adjusting rod, 91-Second adjusting seat, 911-Second sleeve hole, 912-Second strip hole, 913-Second block,

[0048] 10-Fasteners. Detailed Implementation

[0049] To better understand this utility model, it will be further described below with reference to the accompanying drawings. It is worth noting that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings. They are used for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0050] Example 1:

[0051] See Figure 4 An adjustment structure for a die-cutting machine includes a frame 1, an indentation roller group, and a die-cutting roller group.

[0052] See Figure 4 The indentation roller assembly includes an upper indentation roller 21 and a lower indentation roller 22.

[0053] See Figure 6 The die-cutting roller assembly includes an upper die-cutting roller 31 and a lower die-cutting roller 32.

[0054] The upper indentation roller 21, the lower indentation roller 22, the upper die-cutting roller 31, and the lower die-cutting roller 32 are all rotatably mounted on the frame 1 via bearings.

[0055] See Figure 4 An upper indentation gear 211 is fixedly mounted on the front end of the upper indentation roller 21, and a lower indentation gear 221 is fixedly mounted on the front end of the lower indentation roller 22. The upper indentation gear 211 and the lower indentation gear 221 mesh. Since the upper indentation gear 211 and the lower indentation gear 221 mesh, the upper indentation roller 21 and the lower indentation roller 22 can be driven by a gear set composed of the upper indentation gear 211 and the lower indentation gear 221. Therefore, only one of the upper indentation roller 21 and the lower indentation roller 22 needs to be driven by a motor to rotate.

[0056] See Figure 6 An upper die-cutting gear 311 is fixedly installed at the front end of the upper die-cutting roller 31, and a lower die-cutting gear 321 is fixedly installed at the front end of the lower die-cutting roller 32. The upper die-cutting gear 311 and the lower die-cutting gear 321 mesh. Since the upper die-cutting gear 311 and the lower die-cutting gear 321 mesh, the upper die-cutting roller 31 and the lower die-cutting roller 32 can be driven by a gear set composed of the upper die-cutting gear 311 and the lower die-cutting gear 321. Therefore, only one of the upper die-cutting roller 31 and the lower die-cutting roller 32 needs to be driven by a motor.

[0057] See Figure 3 A support plate 4 is provided on the front side of the frame 1, which is located between the creasing roller group and the die-cutting roller group. A rotating shaft is rotatably mounted on the lower end of the support plate 4 via a bearing. An adjusting gear 5 is fixedly mounted on the rotating shaft. The lower creasing gear 221 and the lower die-cutting gear 321 both mesh with the adjusting gear 5. Since the lower creasing gear 221 and the lower die-cutting gear 321 both mesh with the adjusting gear 5, the lower creasing roller 22 and the lower die-cutting roller 32 can be driven by the gear set composed of the lower creasing gear 221, the lower die-cutting gear 321 and the adjusting gear 5. Therefore, only one of the upper creasing roller 21, the lower creasing roller 22, the upper die-cutting roller 31 and the lower die-cutting roller 32 needs to be driven by a motor, which can save energy.

[0058] For example, the upper indentation roller 21 can be directly driven to rotate by a motor. The upper indentation roller 21 drives the lower indentation roller 22 to rotate through a gear set consisting of an upper indentation gear 211 and a lower indentation gear 221. The lower indentation roller 22 drives the lower die-cutting roller 32 to rotate through a gear set consisting of a lower indentation gear 221, a lower die-cutting gear 321, and an adjusting gear 5. The lower die-cutting roller 32 drives the upper die-cutting roller 31 to rotate through a gear set consisting of an upper die-cutting gear 311 and a lower die-cutting gear 321. The entire transmission process only requires one motor, which can save energy.

[0059] The front side of the frame 1 is also equipped with a height adjustment component, which is used to adjust the height of the support plate 4.

[0060] The working principle of this embodiment 1 is as follows:

[0061] (1) Scenario 1: When the height of the support plate 4 is increased, the support plate 4 drives the adjusting gear 5 to be increased together. Since the lower indentation gear 221 and the lower die-cutting gear 321 are both meshed with the adjusting gear 5, when the adjusting gear 5 is increased, the teeth of the adjusting gear 5 can push the teeth of the lower indentation gear 221 and the lower die-cutting gear 321 upward, so that the lower indentation gear 221 and the lower die-cutting gear 321 are subjected to the tangential component force, so that the lower indentation gear 221 can drive the lower indentation roller 22 to rotate clockwise, and the lower die-cutting gear 321 can drive the lower die-cutting roller 32 to rotate counterclockwise.

[0062] Although the upper indentation gear 211 and the lower indentation gear 221 mesh, and the upper die-cutting gear 311 and the lower die-cutting gear 321 mesh, there are gaps between the teeth of the upper indentation gear 211 and the lower indentation gear 221, and there are also gaps between the teeth of the upper die-cutting gear 311 and the lower die-cutting gear 321. Therefore, when the lower indentation gear 221 rotates within a certain angle range, it will not touch the teeth of the upper indentation gear 211, and when the lower die-cutting gear 321 rotates within a certain angle range, it will not touch the teeth of the upper die-cutting gear 311. This allows the lower indentation roller 22 to rotate relative to the upper indentation roller 21, and the lower die-cutting roller 32 to rotate relative to the upper die-cutting roller 31. This allows the indentation lines on the lower indentation roller 22 to gradually align with the indentation lines on the upper indentation roller 21, and the cutting lines on the lower die-cutting roller 32 to gradually align with the cutting lines on the upper die-cutting roller 31.

[0063] The certain angular range of the lower indentation gear 221 refers to the range within which the teeth of the lower indentation gear 221 will not touch the teeth of the upper indentation gear 211 when rotating; similarly, the certain angular range of the lower die-cutting gear 321 refers to the range within which the teeth of the lower die-cutting gear 321 will not touch the teeth of the upper die-cutting gear 311 when rotating.

[0064] Furthermore, it can improve the accuracy of creasing and die-cutting operations when creasing and die-cutting paper, which is beneficial to improving the processing quality.

[0065] (2) Scenario 2: When the height of the support plate 4 is lowered, the support plate 4 drives the adjusting gear 5 to be lowered as well. Since the lower indentation gear 221 and the lower die-cutting gear 321 are both meshed with the adjusting gear 5, when the adjusting gear 5 is lowered, the teeth of the adjusting gear 5 can push the teeth of the lower indentation gear 221 and the lower die-cutting gear 321 downwards, so that the lower indentation gear 221 and the lower die-cutting gear 321 are both subjected to the tangential force, so that the lower indentation gear 221 can drive the lower indentation roller 22 to rotate counterclockwise, and the lower die-cutting gear 321 can drive the lower die-cutting roller 32 to rotate clockwise.

[0066] Although the upper indentation gear 211 and the lower indentation gear 221 mesh, and the upper die-cutting gear 311 and the lower die-cutting gear 321 mesh, there are gaps between the teeth of the upper indentation gear 211 and the lower indentation gear 221, and there are also gaps between the teeth of the upper die-cutting gear 311 and the lower die-cutting gear 321. Therefore, when the lower indentation gear 221 rotates within a certain angle range, it will not touch the teeth of the upper indentation gear 211, and when the lower die-cutting gear 321 rotates within a certain angle range, it will not touch the teeth of the upper die-cutting gear 311. This allows the lower indentation roller 22 to rotate relative to the upper indentation roller 21, and the lower die-cutting roller 32 to rotate relative to the upper die-cutting roller 31. This allows the indentation lines on the lower indentation roller 22 to gradually align with the indentation lines on the upper indentation roller 21, and the cutting lines on the lower die-cutting roller 32 to gradually align with the cutting lines on the upper die-cutting roller 31.

[0067] Furthermore, it can improve the accuracy of creasing and die-cutting operations when creasing and die-cutting paper, which is beneficial to improving the processing quality.

[0068] Based on the working principle of Embodiment 1 described above, it can be seen that Embodiment 1 has the following effects:

[0069] When the creasing lines of the upper creasing roller 21 and the lower creasing roller 22 are slightly misaligned, or the cutting lines of the upper die-cutting roller 31 and the lower die-cutting roller 32 are slightly misaligned, this embodiment does not require removing the entire die-cutting machine from the production line. Simply adjusting the height of the support plate 4 will drive the lower die-cutting gear 321 and the lower creasing gear 221 to rotate, which in turn drives the lower die-cutting roller 32 and the lower creasing roller 22 to rotate. This allows the creasing lines on the lower creasing roller 22 to gradually align with the creasing lines on the upper creasing roller 21, and the cutting lines on the lower die-cutting roller 32 to gradually align with the cutting lines on the upper die-cutting roller 31. This achieves online adjustment, saves time in disassembling and assembling the entire die-cutting machine from the production line, and helps improve production efficiency.

[0070] Example 2:

[0071] This embodiment 2 provides a specific structure for the height adjustment component:

[0072] See Figure 3 The height adjustment assembly includes a height adjustment seat 61, a height adjustment screw 62, a limiter, and a fixing component.

[0073] See Figure 3 The height adjustment seat 61 is fixedly installed on the top front side of the frame 1. The height adjustment seat 61 is provided with a screw hole, and the height adjustment screw 62 is threaded into the screw hole. A prism 621 is welded and fixed to the top of the height adjustment screw 62. When turning the height adjustment screw 62, the worker can use a wrench to turn it on the prism 621. The prism 621 is designed to facilitate the use of a wrench.

[0074] See Figure 5 The top of the support plate 4 is provided with two limiting holes 41 and a rotating hole 42 located between the two limiting holes 41. The bottom of the height adjusting screw 62 is provided with two limiting members. The height adjusting screw 62 is rotatably engaged with the rotating hole 42, and the limiting members are rotatably engaged with the limiting hole 41. The two limiting members can prevent the height adjusting screw 62 from moving up and down in the rotating hole 42, so that the support plate 4 can rise and fall synchronously with the height adjusting screw 62, and the support plate 4 will not hinder the rotation of the height adjusting screw 62.

[0075] See Figure 5 In this embodiment 2, the limiting component can be a limiting ring 63, which can be welded and fixed to the bottom of the height adjusting screw 62. Furthermore, the limiting ring 63 has several first washers 631 on the side facing the stepped surface between the limiting hole 41 and the rotating hole 42. The first washers 631 are fitted onto the height adjusting screw 62, and can reduce the wear of the limiting ring 63 and extend its service life.

[0076] See Figure 7 The fastener is used to fix the height adjustment screw 62. The fastener includes a fixing base 64, the left end of which is installed on the top surface of the height adjustment base 61. The fixing base 64 has a round hole 641 in the middle and a slotted hole 642 at the right end. The round hole 641 and the slotted hole 642 are connected. The round hole 641 is fitted onto the height adjustment screw 62. The slotted hole 642 divides the right end of the fixing base 64 into two clamping blocks 643. The two clamping blocks 643 are connected by fasteners 10.

[0077] Specifically, both clamping blocks 643 are provided with connecting holes. The fastener 10 includes a bolt and a nut. After the bolt passes through the connecting holes on the two clamping blocks 643, the nut is screwed on, so that the two clamping blocks 643 are clamped between the hexagonal head of the bolt and the nut, thus clamping the two clamping blocks 643. At this time, the width of the slotted hole 642 between the two clamping blocks 643 is reduced, and the circular hole 641 communicating with the slotted hole 642 is also reduced, so that the height adjustment screw 62 located in the circular hole 641 is clamped by the hole wall of the circular hole 641, so that the height adjustment screw 62 can be fixed at the current height.

[0078] The working principle of the height adjustment component in this embodiment 2 is as follows:

[0079] First, loosen the nut to relax the two clamping blocks 643, increase the width of the slot hole 642 between the two clamping blocks 643, relax and enlarge the circular hole 641 connected to the slot hole 642, and relax the height adjustment screw 62 located in the circular hole 641. At this time, the height adjustment screw 62 can be turned.

[0080] Then, turn the height adjustment screw 62. The height adjustment screw 62 drives the support plate 4 to move up and down together, and the support plate 4 drives the adjusting gear 5 to move up and down together. When the height adjustment screw 62 is turned upward, the height adjustment screw 62 drives the support plate 4 and the adjusting gear 5 to move upward together; when the height adjustment screw 62 is turned downward, the height adjustment screw 62 drives the support plate 4 and the adjusting gear 5 to move downward together.

[0081] Finally, after adjusting the height of the adjusting gear 5, tighten the nut so that the two clamping blocks 643 are re-clamped, the width of the slot hole 642 between the two clamping blocks 643 is reduced, and the circular hole 641 connected to the slot hole 642 is also reduced, so that the height adjusting screw 62 located in the circular hole 641 is re-clamped by the hole wall of the circular hole 641, so that the height adjusting screw 62 can be fixed at the current height, thereby fixing the support plate 4 and the adjusting gear 5 at the current height.

[0082] As can be seen from the above working principle, the height adjustment component of this embodiment is easy to use. By turning the height adjustment screw 62 upward, the support plate 4 and the adjusting gear 5 on the support plate 4 can be raised; by turning the height adjustment screw 62 downward, the support plate 4 and the adjusting gear 5 on the support plate 4 can be lowered. Furthermore, the fixing component in the height adjustment component can fix the current height of the height adjustment screw 62, thereby fixing the current height of the support plate 4 and the adjusting gear 5, which can improve the stability of the support plate 4 and the adjusting gear 5 at the current height and help improve the reliability of equipment operation.

[0083] Example 3:

[0084] See Figure 5 To improve the stability of the support plate 4 during height adjustment, several guide holes 43 are provided on the support plate 4. In this embodiment, two guide holes 43 are provided. A guide member is installed on the front side of the frame 1, and the guide member slides in the vertical direction with the guide hole 43. A blocking member is provided at the front end of the guide member, and the support plate 4 is located between the frame 1 and the blocking member. When the support plate 4 moves up and down, the guide member can move up and down within the guide hole 43, and the blocking member can prevent the support plate 4 from disengaging from the guide member, thereby improving the stability of the support plate 4 during height adjustment.

[0085] See Figure 5In this embodiment, the guide can be a screw 11, and the blocking element can be a second washer 111. After the second washer 111 is fitted onto the screw 11, the screw 11 is threaded onto the front side wall of the frame 1, so that the support plate 4 is sandwiched between the second washer 111 and the front side wall of the frame 1. When the support plate 4 moves up and down, the screw 11 can move up and down within the guide hole 43, and the second washer 111 can prevent the support plate 4 from disengaging from the screw 11. By using the screw 11 as the guide and the second washer 111 as the blocking element, both material sourcing and installation are convenient.

[0086] See Figure 1 and Figure 2 To improve safety, a protective cover 7 is provided on the front side of the frame 1. The upper indentation gear 211, lower indentation gear 221, upper die-cutting gear 311, lower die-cutting gear 321, and adjusting gear 5 are all located inside the protective cover 7. The top wall of the protective cover 7 has a clearance hole 71, and the support plate 4 is located inside the clearance hole 71. The protective cover 7 prevents workers' clothing from being caught, thereby improving safety; the clearance hole 71 prevents the protective cover 7 from interfering with the height adjustment of the support plate 4.

[0087] For details, see Figure 3 Four mounting posts 12 are welded and fixed to the front side of the frame 1. Two mounting posts 12 are located in the middle of the front side of the frame 1, and the other two mounting posts 12 are located at the bottom of the front side of the frame 1. The support plate 4 is provided with two clearance holes 44. The two mounting posts 12 located in the middle of the front side of the frame 1 are respectively set in one clearance hole 44. When the support plate 4 moves up and down, the mounting posts 12 and the clearance holes 44 slide in the vertical direction. See Figure 1 Each of the four mounting posts 12 has a mounting screw 121 welded to its front end. The protective cover 7 has four through holes 72, and each through hole 72 is fitted onto a mounting screw 121. After the through hole 72 is fitted onto the mounting screw 121, a mounting nut 1211 is threaded onto the mounting screw 121. The mounting nut 1211 prevents the protective cover 7 from detaching from the mounting screw 121. At this time, the side wall of the protective cover 7 is sandwiched between the mounting nut 1211 and the mounting post 12, thus completing the installation of the protective cover 7 on the front side of the frame 1.

[0088] The installation of the protective cover 7 is facilitated by using the mounting post 12, mounting screw 121, and mounting nut 1211. Simply place the through hole 72 on the side wall of the protective cover 7 onto the mounting screw 121, and then screw the mounting nut 1211 onto the mounting screw 121. After unscrewing the mounting nut 1211, the protective cover 7 can be removed, facilitating its removal and allowing for easy inspection and maintenance of the structure inside the protective cover 7. Furthermore, by placing the mounting post 12 within the clearance hole 44 on the support plate 4, the mounting post 12 can be installed in the middle of the front side of the frame 1 without being obstructed by the support plate 4.

[0089] Example 4:

[0090] This embodiment 4 is a further improvement on embodiment 1, embodiment 2, or embodiment 3:

[0091] See Figure 3 The frame 1 has first slide rails 13 on both the front and rear sides, see [reference]. Figure 6 The first slide rail 13 is provided with a first slide block 131, which can slide vertically in the first slide rail 13. The upper indentation roller 21 is rotatably connected to the first slide block 131 through a bearing.

[0092] The top of the frame 1 is provided with a first sliding hole, and a first adjusting rod 8 is provided in the first sliding hole. The first adjusting rod 8 can slide and engage with the first sliding hole in the vertical direction. The bottom of the first adjusting rod 8 is welded and fixed to the first slide block 131. The first adjusting rod 8 can drive the first slide block 131 to move up and down together, and the first slide block 131 can drive the upper indentation roller 21 to move up and down together.

[0093] See Figure 3 and Figure 7 The top of the frame 1 is fixedly installed with a first adjustable seat 81. The first adjustable seat 81 is provided with a first sleeve hole 811 and a first strip hole 812 that are connected. The first sleeve hole 811 is fitted onto the first adjustable rod 8. The first strip hole 812 divides one end of the first adjustable seat 81 into two first blocks 813. The two first blocks 813 are connected by fasteners 10.

[0094] Specifically, the two first blocks 813 are provided with interconnected first through holes. The fastener 10 includes a bolt and a nut. After the bolt passes through the first through holes on the two first blocks 813, the nut is screwed on, so that the two first blocks 813 are clamped between the hexagonal head of the bolt and the nut, thus clamping the two first blocks 813. At this time, the width of the first hole 812 between the two first blocks 813 is reduced, and the width of the first set of holes 811 connected to the first hole 812 is also reduced, so that the first adjusting rod 8 located in the first set of holes 811 is clamped by the hole wall of the first set of holes 811, so that the first adjusting rod 8 can be fixed at the current height.

[0095] Furthermore, the first adjusting rod 8 can be a threaded rod, which can increase the resistance between the surface of the first adjusting rod 8 and the wall of the first sleeve hole 811, and improve the stability of the first adjusting rod 8 at the current height.

[0096] The working principle of Example 4 is as follows:

[0097] First, loosen the nut to relax the two first blocks 813, increase the width of the first hole 812 between the two first blocks 813, relax and enlarge the first set of holes 811 connected to the first hole 812, and relax the first adjusting rod 8 located in the first set of holes 811. At this time, the first adjusting rod 8 can move up and down.

[0098] Then, the first adjusting lever 8 is moved up or down, causing the first slide block 131 to move up and down together, which in turn causes the upper creasing roller 21 to move up and down together. When the upper creasing roller 21 moves up, the gap between the upper creasing roller 21 and the lower creasing roller 22 increases, allowing thicker paper to pass through the gap. Conversely, when the upper creasing roller 21 moves down, the gap between the upper creasing roller 21 and the lower creasing roller 22 decreases, making it suitable for creasing thinner paper. Since the thickness difference between different paper thicknesses is less than 1 mm, after adjusting the height of the upper creasing roller 21, the upper creasing gear 211 at the front end of the upper creasing roller 21 and the lower creasing gear 221 at the front end of the lower creasing roller 22 can still maintain their meshing state.

[0099] Finally, after adjusting the height of the upper indentation roller 21, tighten the nut so that the two first blocks 813 are clamped again, the width of the first hole 812 between the two first blocks 813 is reduced, and the first set of holes 811 connected to the first hole 812 is also reduced, so that the first adjusting rod 8 located in the first set of holes 811 is clamped by the hole wall of the first set of holes 811, so that the first adjusting rod 8 can be fixed at the current height.

[0100] As can be seen from the above working principle, by setting the first slide rail 13, the first slide block 131, the first adjusting rod 8 and the first adjusting seat 81, the distance between the upper creasing roller 21 and the lower creasing roller 22 in the creasing roller group can be adjusted, which can adapt to paper of different thicknesses and expand the adaptability.

[0101] Example 5:

[0102] This embodiment 4 is a further improvement on embodiment 1, embodiment 2, embodiment 3, or embodiment 4:

[0103] See Figure 3 The frame 1 has second slide rails 14 on both the front and rear sides, see [reference]. Figure 5 The second slide 14 is provided with a second slide block 141, which can slide vertically in the second slide 14. The upper die-cutting roller 31 is rotatably connected to the second slide block 141 through a bearing.

[0104] The top of the frame 1 is provided with a second sliding hole, and a second adjusting rod 9 is provided in the second sliding hole. The second adjusting rod 9 can slide and engage with the second sliding hole in the vertical direction. The bottom of the second adjusting rod 9 is welded and fixed to the second slide block 141. The second adjusting rod 9 can drive the second slide block 141 to move up and down together, and the second slide block 141 can drive the upper die-cutting roller 31 to move up and down together.

[0105] See Figure 3 A second adjustable pitch seat 91 is fixedly installed on the top of frame 1, see [reference]. Figure 8 The second adjusting seat 91 is provided with a second sleeve hole 911 and a second hole 912 that are connected. The second sleeve hole 911 is fitted onto the second adjusting rod 9, and the second hole 912 divides one end of the second adjusting seat 91 into two second blocks 913. The two second blocks 913 are connected by fasteners 10.

[0106] Specifically, the two second blocks 913 are provided with interconnected second through holes. The fastener 10 includes a bolt and a nut. After the bolt passes through the second through holes on the two second blocks 913, the nut is screwed on, so that the two second blocks 913 are clamped between the hexagonal head of the bolt and the nut, thus clamping the two second blocks 913. At this time, the width of the second hole 912 between the two second blocks 913 is reduced, and the second set hole 911 connected to the second hole 912 is also reduced, so that the second adjusting rod 9 located in the second set hole 911 is clamped by the hole wall of the second set hole 911, so that the second adjusting rod 9 can be fixed at the current height.

[0107] Furthermore, the second adjusting rod 9 can be a threaded rod, which can increase the resistance between the surface of the second adjusting rod 9 and the wall of the second sleeve hole 911, thereby improving the stability of the second adjusting rod 9 at the current height.

[0108] The working principle of Example 5 is as follows:

[0109] First, loosen the nut to relax the two second blocks 913, increase the width of the second hole 912 between the two second blocks 913, relax and enlarge the second set of holes 911 connected to the second hole 912, and relax the second adjusting rod 9 located in the second set of holes 911. At this time, the second adjusting rod 9 can move up and down.

[0110] Then, the second adjusting rod 9 is moved up or down, causing the second slide block 141 to move up and down together, which in turn causes the upper die-cutting roller 31 to move up and down together. When the upper die-cutting roller 31 moves up, the gap between the upper die-cutting roller 31 and the lower die-cutting roller 32 increases, allowing thicker paper to pass through the gap. Conversely, when the upper die-cutting roller 31 moves down, the gap between the upper die-cutting roller 31 and the lower die-cutting roller 32 decreases, making it suitable for die-cutting thinner paper. Since the thickness difference between different paper thicknesses is less than 1 mm, after adjusting the height of the upper die-cutting roller 31, the upper die-cutting gear 311 at the front end of the upper die-cutting roller 31 and the lower die-cutting gear 321 at the front end of the lower die-cutting roller 32 can still maintain meshing.

[0111] Finally, after adjusting the height of the upper die-cutting roller 31, tighten the nut to re-clamp the two second blocks 913, reduce the width of the second hole 912 between the two second blocks 913, and reduce the width of the second set of holes 911 connected to the second hole 912, so that the second adjusting rod 9 located in the second set of holes 911 is clamped by the hole wall of the second set of holes 911, so that the second adjusting rod 9 can be fixed at the current height.

[0112] As can be seen from the above working principle, by setting the second slide rail 14, the second slide block 141, the second adjusting rod 9 and the second adjusting seat 91, the distance between the upper die-cutting roller 31 and the lower die-cutting roller 32 in the die-cutting roller group can be adjusted, which can adapt to paper of different thicknesses and expand the adaptability.

[0113] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An adjusting structure of a die cutting machine, comprising a frame, a set of impression rollers and a set of die cutting rollers are rotatably connected on the frame, the set of impression rollers comprises an upper impression roller and a lower impression roller, the set of die cutting rollers comprises an upper die cutting roller and a lower die cutting roller, characterized in that, The upper indentation roller has an upper indentation gear at its front end, and the lower indentation roller has a lower indentation gear at its front end. The upper indentation gear meshes with the lower indentation gear. The upper die-cutting roller has an upper die-cutting gear at its front end, and the lower die-cutting roller has a lower die-cutting gear at its front end. The upper die-cutting gear meshes with the lower die-cutting gear. The front side of the frame has a support plate and a height adjustment component for adjusting the height of the support plate. The lower end of the support plate has an adjustment gear. Both the lower indentation gear and the lower die-cutting gear mesh with the adjustment gear.

2. The adjusting structure of a die-cutting machine according to claim 1, characterized in that, The height adjustment assembly includes a height adjustment base, a height adjustment screw, a limiting component, and a fixing component. The height adjustment base is located on the top front side of the frame. The height adjustment screw is threaded onto the height adjustment base. Two limiting components are provided at the bottom of the height adjustment screw. The top of the support plate is provided with two limiting holes and a rotating hole located between the two limiting holes. The height adjustment screw is rotatably engaged with the rotating hole, and the limiting components are rotatably engaged with the limiting holes. A fixing component is provided on the height adjustment base to fix the height adjustment screw.

3. The adjustment structure of a die-cutting machine according to claim 2, characterized in that, The fixing component includes a fixing seat, which is located on the top surface of the height adjustment seat. The fixing seat has a round hole in the middle and a slotted hole at one end. The round hole and the slotted hole are connected. The round hole is fitted onto the height adjustment screw, and the slotted hole divides the end of the fixing seat into two clamping blocks. The two clamping blocks are connected by fasteners.

4. The adjusting structure of a die-cutting machine according to claim 2, wherein, The top of the height adjustment screw is provided with a prism.

5. The adjustment structure of a die-cutting machine according to claim 1, wherein The support plate is provided with several guide holes, and the front side of the frame is provided with a guide member. The guide member and the guide hole slide in a vertical direction. The front end of the guide member is provided with a blocking member, and the support plate is located between the frame and the blocking member.

6. The adjustment structure of a die-cutting machine according to claim 1, wherein The front side of the frame is provided with a protective cover. The upper indentation gear, the lower indentation gear, the upper die-cutting gear, the lower die-cutting gear and the adjusting gear are all located inside the protective cover. The top wall of the protective cover is provided with a clearance hole, and the support plate is located inside the clearance hole.

7. The adjustment structure of a die-cutting machine according to claim 6, characterized in that, The front side of the frame is provided with a mounting post, the front end of the mounting post is provided with a mounting screw, the mounting screw is threaded with a mounting nut, the protective cover is provided with a through hole, the through hole is fitted onto the mounting screw, and the side wall of the protective cover is sandwiched between the mounting nut and the mounting post.

8. The adjustment structure of a die-cutting machine according to claim 7, characterized in that, The support plate is provided with a clearance hole, and the mounting post is provided in the clearance hole. The mounting post and the clearance hole slide in a vertical direction.

9. The adjustment structure of a die-cutting machine according to claim 1, wherein The frame is provided with first slide rails on both the front and rear sides, and a first slide block is provided in the first slide rail. The first slide block is rotatably connected to the upper indentation roller. The top of the frame is slidably connected with a first adjusting rod in the vertical direction. The bottom of the first adjusting rod is connected to the first slide block. The top of the frame is provided with a first adjusting seat. The first adjusting seat is provided with a first sleeve hole and a first strip hole that are connected. The first sleeve hole is fitted onto the first adjusting rod. The first strip hole divides one end of the first adjusting seat into two first blocks. The two first blocks are connected by fasteners.

10. The adjustment structure of a die-cutting machine according to claim 1, characterized in that, The frame is provided with second slide rails on both the front and rear sides, and a second slide block is provided in the second slide rail. The second slide block is rotatably connected to the upper die-cutting roller. A second adjusting rod is slidably connected to the top of the frame in the vertical direction. The bottom of the second adjusting rod is connected to the second slide block. A second adjusting seat is provided on the top of the frame. The second adjusting seat has a second sleeve hole and a second hole that are connected. The second sleeve hole is fitted onto the second adjusting rod. The second hole divides one end of the second adjusting seat into two second blocks. The two second blocks are connected by fasteners.

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