Cutting structure for skin sticking machine

By employing a dual-blade structure of a paper cutter and a dotted-line cutter on the wrapping machine, dotted-line dividing holes are formed simultaneously, solving the problem of difficult operation of fireworks during rotation. This enables convenient twisting and tearing of the outer packaging paper of fireworks, improving cutting efficiency and accuracy.

CN223777281UActive Publication Date: 2026-01-09HANGZHOU LIZHIYUAN MASCH CO LTD
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Patent Information

Application Number
CN202520395780.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-07
Publication Date
2026-01-09
Estimated Expiration
2035-03-07

AI Technical Summary

Technical Problem

The existing wrapping machine only performs a single cutting and trimming operation on the outer packaging paper of the fireworks tube, which makes the rotation operation of the fireworks difficult, time-consuming and labor-intensive.

Method used

It adopts a dual-blade structure, including a paper cutter and a dotted line cutter. The driver synchronously cuts on the operating table to form dotted line-shaped cutting holes, which facilitates the twisting and tearing of the outer packaging paper. Combined with the lead screw motor to adjust the blade spacing and the tension spring to adjust the tightness, the cutting stability and accuracy are improved.

Benefits of technology

It enables convenient rotation of the outer packaging paper for fireworks, saving time and effort, improving the stability and accuracy of the cutting position, and adapting to different production needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a cutting structure for a leather sticking machine, and aims to provide a cutting structure for a leather sticking machine, which is convenient for rotary operation of fireworks and firecrackers and comprises an operation table, the first driver is arranged on the operation table in an overhead mode; the knife rest is detachably connected to the output end of the first driver; the paper cutter is detachably connected with the cutter rest and is driven by the first driver to perform cutting action on the operation table in the left-right direction; and the dotted line cutter is parallel to the paper cutter and detachably connected with the cutter rest, and the dotted line cutter is driven by the first driver to conduct cutting action synchronously with the paper cutter on the operation table in the left-right direction. The leather sticking machine has the beneficial effects that the leather sticking machine is provided with a double-blade structure, so that outer packaging paper can be torn off along the plurality of broken holes in the dotted line shape by twisting when an operator rotates the fireworks, the aim of conveniently rotating the fireworks is fulfilled, and time and labor are saved.
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Description

Technical Field

[0001] This utility model relates to the technical field of cutting structures for leather-making machines, and in particular to a cutting structure for leather-making machines. Background Technology

[0002] A confetti cannon, also known as a wedding cannon, confetti cannon, or confetti cannon, is a handheld confetti cannon used at celebratory occasions such as business openings and weddings. It is usually wrapped in gold or red paper. Its main function is to release compressed air by rotating or pressing a button, creating an explosive impact that propels the colorful strips, sequins, or petals filled inside the paper tube into the air, thus producing a festive effect and enhancing the atmosphere of the event.

[0003] A labeling machine (also known as a wrapping machine) is used to attach rolls of packaging paper or label paper to products after gluing and cutting. However, currently available labeling machines for fireworks only perform a simple cutting process on the outer packaging paper, dividing it into sections and attaching it to the product. This makes it difficult for the outer packaging paper to tear apart during the rotation of fireworks that release compressed air, resulting in difficult, time-consuming, and labor-intensive operation. Utility Model Content

[0004] This invention aims to overcome the shortcomings of existing technology where the outer packaging paper of fireworks tubes is only cut and trimmed, making it difficult to rotate the fireworks. It provides a cutting structure for the outer packaging paper of fireworks tubes that facilitates the rotation of fireworks.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cutting structure for a leather-making machine, comprising:

[0007] Control panel;

[0008] Driver 1 is mounted on the control panel.

[0009] The tool holder is detachably connected to the output terminal of the driver.

[0010] The paper cutter is detachably connected to the blade holder and performs a cutting action on the operating table in the left-right direction under the drive of the first driver.

[0011] The dotted-line knife, parallel to the paper cutter and detachably connected to the knife holder, performs a cutting motion synchronously with the paper cutter in the left-right direction on the operating table under the drive of the first driver. The wrapping machine conveys the glued packaging paper to the operating table. Driven by the first driver, the paper cutter performs a cutting motion on the operating table to cut and segment the packaging paper. Simultaneously, the dotted-line knife cuts the packaging paper on the operating table, creating several dotted-line-shaped cutting holes on the packaging paper. This allows the operator to easily tear the outer packaging paper along these holes when rotating the fireworks, facilitating the rotation of the fireworks and saving time and effort.

[0012] Preferably, both the paper cutter and the dotted-line knife are circular in shape. Both are rotatably connected to the knife holder via their respective centers. The knife holder slides horizontally above the operating table under the drive of the first driver. The edges of both the paper cutter and the dotted-line knife are cutting edges, and they are respectively rolled along the operating table in the horizontal direction via their cutting edges under the drive of the first driver. Initially, both the paper cutter and the dotted-line knife are located at the ends of the operating table. Their circular shape facilitates uniform horizontal rolling along the operating table via their cutting edges under the drive of the first driver, thus ensuring precise cutting of the packaging paper.

[0013] Preferably, the operating table is equipped with a support frame, the edge of the operating table is detachably and fixedly connected to the support frame, the driver is detachably connected to the support frame, the support frame is provided with a slide rail corresponding vertically to the operating table, the slide rail is detachably connected to the support frame, and the tool holder is provided with a slider that matches the slide rail. Under the drive of the driver, the tool holder is slidably connected to the support frame via the slider matching the slide rail. The slide rail design facilitates the tool holder to slide linearly in the left-right direction under the drive of the driver, thereby ensuring the stability and accuracy of the cutting position.

[0014] Preferably, there are two slide rails, which are parallel to each other and spaced apart. There are also two sliders, each of which is matched with one of the two slide rails. The output end of the first driver is located between the two slide rails. The arrangement of two slide rails helps to further improve the connection strength and stability of the tool holder connection structure, thereby further improving the stability and accuracy of the cutting position.

[0015] Preferably, the knife holder includes a base plate. The output end and slider of the first driver are detachably connected to the top of the base plate. Two suspension blocks are arranged parallel to each other in the front-back direction at the bottom of the base plate. The suspension blocks are perpendicular to the base plate, and their tops are detachably connected to the base plate. The paper cutter and the dotted line cutter are rotatably connected to the bottom of the two suspension blocks through their respective centers. One suspension block is fixedly connected to the base plate, and the other is slidably connected to the base plate in the front-back direction and can be locked. The distance between the two suspension blocks is adjustable by sliding, facilitating the adjustment of the spacing between the paper cutter and the dotted line cutter. This allows for the adjustment and setting of the positions of several dotted line-shaped cutting holes according to actual production requirements, thereby improving practicality.

[0016] Preferably, the actuator is a cylinder, and a connecting block is provided at the output end of the cylinder, parallel and perpendicular to the slide rails. The connecting block is located between the two slide rails, with one end detachably connected to the output end of the cylinder and the other end detachably connected to the top of the base plate. The output end of the cylinder is connected to the base plate through the connecting block located between the two slide rails, thereby enabling the base plate to slide more smoothly and stably along the slide rails.

[0017] Preferably, the paper cutter is rotatably connected to one of the fixed suspension blocks, and the dotted line knife is rotatably connected to another sliding suspension block. The blade of the dotted line knife has several grooves evenly distributed around its circumference. Connecting the dotted line knife to the sliding suspension block allows for easy adjustment of the distance between the dotted line knife and the paper cutter, ensuring the cutting position of the packaging paper remains unchanged; this improves the ease of adjustment. The dotted line knife's blade has several grooves evenly distributed around its circumference, facilitating the formation of several easily tearable dotted line-shaped cutting holes on the packaging paper during cutting.

[0018] Preferably, a second driver is detachably connected to one of the fixed suspension blocks. The output end of the second driver is detachably connected to another sliding suspension block, which slides along the back-and-forth direction with the base plate under the drive of the second driver. Using the second driver to control the distance between the two suspension blocks is convenient, quick, and highly accurate.

[0019] Preferably, the other suspension block has screws threaded to both its left and right ends. The base plate has two rectangular sliding holes that correspond to the screws at each end of the suspension block. The suspension block is detachably connected to the base plate via screws passing through the corresponding rectangular sliding holes, and slides along the length of the rectangular sliding holes in the front-to-back direction. The screws facilitate the installation and removal of the suspension block from the base plate, and also allow the suspension block to slide back and forth with the base plate via the screws and rectangular sliding holes, resulting in a simple structure.

[0020] Preferably, the second driver is a lead screw motor. One fixed suspension block has two guide shafts, located on the left and right sides of the motor and parallel to each other. One end of each guide shaft is detachably connected to one of the fixed suspension blocks. The base plate has two connecting seats, each detachably connected to the other end of one of the guide shafts. The connecting seats are detachably connected to the base plate. The other suspension block has two guide sleeves that match the two guide shafts. This suspension block is fitted onto the two guide shafts via the two guide sleeves and then slides along the guide shafts in the front-back direction under the drive of the lead screw motor. Using a lead screw motor to control the distance between the two suspension blocks is convenient, quick, and highly accurate. Simultaneously, the detachable connection between the suspension blocks and the base plate, along with the connection between the two suspension blocks via the guide shafts, further improves the connection strength and structural stability of the suspension blocks.

[0021] Preferably, the suspension block is provided with two parallel and vertically distributed pull rods, one end of which is fixedly connected to the left side of the suspension block, and the other end of which is suspended outside the left side of the suspension block and has several through holes distributed along its length. A tension spring is hung in any one of the through holes. The middle part of the pull rod is rotatably connected to the suspension block, and one end of the pull rod is located on the right side of the suspension block. On one suspension block, the end of the pull rod on the right side is rotatably connected to the center of the paper cutter, and on another suspension block, the end of the pull rod on the right side is rotatably connected to the center of the dotted line cutter. The other end of the pull rod is suspended outside the left side of the suspension block and has several through holes corresponding vertically to the through holes. The through holes are distributed along the length of the pull rod. One end of the tension spring is detachably connected to the through hole, and the other end of the tension spring is detachably connected to the through hole corresponding vertically to the through hole. The tension spring ensures that the paper cutter and the dotted line cutter always act on the paper through their blades, guaranteeing smooth paper cutting; at the same time, several corresponding through holes one and two allow the tension of the paper cutter and the dotted line cutter to be adjusted by changing the position of the tension spring.

[0022] The beneficial effects of this utility model are as follows: The wrapping machine is equipped with a double-blade structure, which allows the outer packaging paper to be torn apart along the dotted cutting holes by twisting when the operator rotates the firework, thus facilitating the rotation operation of the firework and saving time and effort; both the paper cutter and the dotted cutting knife are circular, which facilitates the precise cutting of the packaging paper; it helps to ensure the stability and accuracy of the cutting position; it is easy to adjust the distance between the paper cutter and the dotted cutting knife, thereby allowing the position of the dotted cutting holes to be adjusted according to actual production requirements, thus improving practicality; the use of a screw motor to control the distance between the paper cutter and the dotted cutting knife is convenient, fast, and highly accurate; the tension spring ensures that the paper cutter and the dotted cutting knife always act on the paper through their blades, ensuring smooth cutting of the paper; at the same time, several corresponding through holes one and two allow the tension of the paper cutter and the dotted cutting knife on the paper to be adjusted by changing the position of the tension spring. Attached Figure Description

[0023] Figure 1 and Figure 2 These are all schematic diagrams of the structure of this utility model;

[0024] Figure 3 yes Figure 2 The right view;

[0025] Figure 4 yes Figure 2 The left view;

[0026] Figure 5 This is a schematic diagram of the tool holder structure;

[0027] Figure 6 yes Figure 5 Enlarged view of the structure at point A in the middle.

[0028] In the diagram: 1. Operating table, 2. Driver 1, 3. Knife holder, 4. Paper cutter, 5. Dashed line knife, 6. Blade edge, 7. Support frame, 8. Slide rail, 9. Slider, 10. Base plate, 11. Suspension block, 12. Connecting block, 13. Groove, 14. Driver 2, 15. Screw, 16. Rectangular sliding hole, 17. Guide shaft, 18. Connecting seat, 19. Guide sleeve, 20. Pull rod 1, 21. Pull rod 2, 22. Through hole 1, 23. Tension spring, 24. Through hole 2. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0031] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of components illustrated in these embodiments do not limit the scope of this application. For ease of illustration, spatial relative terms such as “upper,” “lower,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figures is inverted, an element described as being “below” other elements or features would be fixed “upper” to other elements or features. Thus, the exemplary term “lower” can include both upper and lower orientations. The device may be fixed in other ways (rotated 90 degrees or located in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly. It should also be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale. Techniques, processes, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, processes, and equipment should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be discussed further in subsequent figures.

[0032] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 4 In the described embodiment, a cutting structure for a leather wrapping machine includes an operating table 1; a driver 2, mounted on the operating table 1; a blade holder 3, detachably connected to the output end of the driver 2; a paper cutter 4, detachably connected to the blade holder 3, which performs a cutting action on the operating table 1 in the left-right direction under the drive of the driver 2; and a dotted line blade 5, parallel to the paper cutter 4 and detachably connected to the blade holder 3, which performs a cutting action on the operating table 1 synchronously with the paper cutter 4 in the left-right direction under the drive of the driver 2.

[0034] Both the paper cutter 4 and the dotted line knife 5 are circular in shape. Both the paper cutter 4 and the dotted line knife 5 are rotatably connected to the knife holder 3 through their respective centers. The knife holder 3 slides in the left and right direction above the operating table 1 under the drive of the driver 2. The edges of the paper cutter 4 and the dotted line knife 5 are both cutting edges 6. Under the drive of the driver 2, the paper cutter 4 and the dotted line knife 5 are respectively rotatably connected to the operating table 1 in the left and right direction through their cutting edges 6.

[0035] A support frame 7 is mounted on the operating table 1. The edge of the operating table 1 is detachably and fixedly connected to the support frame 7. The driver 2 is detachably connected to the support frame 7. The support frame 7 is provided with a slide rail 8 that corresponds vertically to the operating table 1. The slide rail 8 is detachably connected to the support frame 7. The tool holder 3 is provided with a slider 9 that matches the slide rail 8. Under the drive of the driver 2, the tool holder 3 is slidably connected to the support frame 7 by the slider 9 matching the slide rail 8.

[0036] There are two slide rails 8, which are parallel to each other and spaced apart. There are two sliders 9, which are matched one-to-one with the two slide rails 8. The output of the driver 2 is located between the two slide rails 8.

[0037] like Figure 1 and Figure 5 As shown, the knife holder 3 includes a base plate 10. The output end of the driver 2 and the slider 9 are detachably connected to the top of the base plate 10. The bottom of the base plate 10 is provided with two suspension blocks 11 arranged parallel to each other in the front-back direction. The suspension blocks 11 are perpendicular to the base plate 10. The top of the suspension blocks 11 is detachably connected to the base plate 10. The paper cutter 4 and the dotted line cutter 5 are rotatably connected to the bottom of the two suspension blocks 11 through their respective centers. One suspension block 11 is fixedly connected to the base plate 10, and the other suspension block 11 is slidably connected to the base plate 10 in the front-back direction and can be locked.

[0038] The driver 2 is a cylinder. The output end of the cylinder is parallel to and perpendicular to the slide rail 8 and has a connecting block 12. The connecting block 12 is located between the two slide rails 8. One end of the connecting block 12 is detachably connected to the output end of the cylinder, and the other end of the connecting block 12 is detachably connected to the top of the base plate 10.

[0039] like Figure 5 and Figure 6 As shown, the paper cutter 4 is rotatably connected to one of the fixed suspension blocks 11, and the dotted line cutter 5 is rotatably connected to another sliding suspension block 11. The blade edge 6 of the dotted line cutter 5 is provided with several grooves 13 evenly distributed along its circumference.

[0040] One of the fixed suspension blocks 11 is detachably connected to a second driver 14. The output end of the second driver 14 is detachably connected to another sliding suspension block 11. The other suspension block 11 is slidably connected to the base plate 10 in the front-back direction under the drive of the second driver 14.

[0041] The top left and right ends of the other suspension block 11 are threaded with screws 15. The base plate 10 has two rectangular sliding holes 16 that match the screws 15 at the left and right ends of the suspension block 11 respectively. The suspension block 11 is detachably connected to the base plate 10 after the screws 15 pass through the corresponding rectangular sliding holes 16, and slides along the length of the rectangular sliding holes 16 with the base plate 10 in the front-back direction.

[0042] The second driver 14 is a lead screw motor. One of the fixed suspension blocks 11 is provided with two guide shafts 17. The two guide shafts 17 are located on the left and right sides of the lead screw motor and are parallel to each other. One end of the guide shaft 17 is detachably connected to one of the fixed suspension blocks 11. The base plate 10 is provided with two connecting seats 18 that are detachably connected to the other ends of the two guide shafts 17 respectively. The connecting seats 18 are detachably connected to the base plate 10. The other suspension block 11 is provided with two guide sleeves 19 that are matched one-to-one with the two guide shafts 17. The suspension block 11 is sleeved on the two guide shafts 17 through the two guide sleeves 19 and then slides in the front-back direction with the guide shafts 17 under the drive of the lead screw motor.

[0043] like Figure 3 and Figure 4As shown, the suspension block 11 is provided with vertically distributed and parallel tie rods 20 and 21. One end of tie rod 20 is fixedly connected to the left side of the suspension block 11, and the other end of tie rod 20 is suspended outside the left side of the suspension block 11 and has several through holes 22 distributed along its length. A tension spring 23 is hung in any one of the through holes 22. The middle part of tie rod 21 is rotatably connected to the suspension block 11, and one end of tie rod 21 is located on the right side of the suspension block 11. On one of the suspension blocks 11, tie rod 21 is located on the right side of the suspension block 11. One end of the pull rod 21 on the side is rotatably connected to the center of the paper cutter 4. The other end of the pull rod 21 on the right side of the suspension block 11 is rotatably connected to the center of the dotted line knife 5. The other end of the pull rod 21 is suspended outside the left side of the suspension block 11 and has several through holes 24 that correspond vertically to the through holes 22. The several through holes 24 are distributed along the length of the pull rod 21. One end of the tension spring 23 is detachably connected to the through hole 22, and the other end of the tension spring 23 is detachably connected to the through holes 24 that correspond vertically to the through holes 22.

[0044] In the first embodiment, initially, both the paper cutter 4 and the dotted-line knife 5 are located at the end of the operating table 1. The wrapping machine conveys the glued packaging paper onto the operating table 1. The driver 2 drives the knife holder 3 to move, and as the knife holder 3 moves, it causes the paper cutter 4 and the dotted-line knife 5 to roll at a uniform speed on the paper surface of the operating table 1. The packaging paper is cut and segmented under the action of the paper cutter 4, and at the same time, under the action of the dotted-line knife 5, several dotted-line-shaped cutting holes are formed on its surface. This allows the outer packaging paper to be torn apart along the dotted-line-shaped cutting holes by twisting when the operator rotates the firework, thus facilitating the rotation of the firework and saving time and effort. In this embodiment, the driver 2 can be a cylinder, but is not limited to this; it can also be a motor, etc.

[0045] In the second embodiment, the second actuator 14 controls the movement of the sliding suspension block 11 to adjust the distance between the paper cutter 4 and the dotted line cutter 5. This allows for the adjustment and setting of the positions of the several dotted line-shaped cutting holes according to actual production requirements, thereby improving practicality. In this embodiment, the second actuator 14 is a lead screw motor, but it is not limited to this.

[0046] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cutting structure for a leather-making machine, characterized in that, include: Control panel (1); Driver 1 (2) is mounted on the control panel (1); The tool holder (3) is detachably connected to the output end of the driver (2); The paper cutter (4) is detachably connected to the knife holder (3) and performs a cutting action on the operating table (1) in the left and right direction under the drive of the driver (2); The dotted line knife (5) is parallel to the paper cutter (4) and is detachably connected to the knife holder (3). Under the drive of the driver (2), the dotted line knife (5) performs cutting action synchronously with the paper cutter (4) in the left and right direction on the operating table (1).

2. The cutting structure for a leather-making machine according to claim 1, characterized in that, The paper cutter (4) and the dotted line knife (5) are both circular in shape. The paper cutter (4) and the dotted line knife (5) are rotatably connected to the knife holder (3) through their respective centers. The knife holder (3) slides in the left and right direction above the operating table (1) under the drive of the driver (2). The edges of the paper cutter (4) and the dotted line knife (5) are both cutting edges (6). The paper cutter (4) and the dotted line knife (5) are respectively rotatably connected to the operating table (1) in the left and right direction through their cutting edges (6) under the drive of the driver (2).

3. The cutting structure for a leather-making machine according to claim 2, characterized in that, The operating table (1) is equipped with a support frame (7). The edge of the operating table (1) is detachably and fixedly connected to the support frame (7). The driver (2) is detachably connected to the support frame (7). The support frame (7) is equipped with a slide rail (8) that is vertically corresponding to the operating table (1). The slide rail (8) is detachably connected to the support frame (7). The tool holder (3) is equipped with a slider (9) that matches the slide rail (8). The tool holder (3) is slidably connected to the support frame (7) by the slider (9) and the slide rail (8) under the drive of the driver (2).

4. The cutting structure for a leather-making machine according to claim 3, characterized in that, The number of slide rails (8) is two, the two slide rails (8) are parallel to each other and are spaced apart, the number of sliders (9) is two, the two sliders (9) are matched one-to-one with the two slide rails (8), and the output end of the driver (2) is located between the two slide rails (8).

5. The cutting structure for a leather-making machine according to claim 3, characterized in that, The knife holder (3) includes a base plate (10). The output end of the driver (2) and the slider (9) are detachably connected to the top of the base plate (10). The bottom of the base plate (10) is provided with two suspension blocks (11) arranged parallel to each other in the front-back direction. The suspension blocks (11) are perpendicular to the base plate (10). The top of the suspension blocks (11) is detachably connected to the base plate (10). The paper cutter (4) and the dotted line cutter (5) are rotatably connected to the bottom of the two suspension blocks (11) through their respective centers. One suspension block (11) is fixedly connected to the base plate (10), and the other suspension block (11) is slidably connected to the base plate (10) in the front-back direction and can be locked.

6. The cutting structure for a leather-making machine according to claim 5, characterized in that, The driver (2) is a cylinder. The output end of the cylinder is parallel to and perpendicular to the slide rail (8) and has a connecting block (12). The connecting block (12) is located between the two slide rails (8). One end of the connecting block (12) is detachably connected to the output end of the cylinder, and the other end of the connecting block (12) is detachably connected to the top of the base plate (10).

7. The cutting structure for a leather-making machine according to claim 5, characterized in that, The paper cutter (4) is rotatably connected to one of the fixed suspension blocks (11), and the dotted line cutter (5) is rotatably connected to another sliding suspension block (11). The edge (6) of the dotted line cutter (5) is provided with several grooves (13) evenly distributed along its circumference.

8. The cutting structure for a leather-making machine according to claim 5, characterized in that, One of the fixed suspension blocks (11) is detachably connected to a second driver (14). The output end of the second driver (14) is detachably connected to another sliding suspension block (11). The other suspension block (11) is slidably connected to the base plate (10) in the front-back direction under the drive of the second driver (14).

9. The cutting structure for a leather-making machine according to claim 8, characterized in that, The top left and right ends of the other suspension block (11) are threaded with screws (15). The base plate (10) is provided with two rectangular sliding holes (16) that match the screws (15) at the left and right ends of the suspension block (11). The suspension block (11) is detachably connected to the base plate (10) after the screws (15) pass through the corresponding rectangular sliding holes (16), and slides along the length of the rectangular sliding holes (16) and the base plate (10) in the front and back direction.

10. A cutting structure for a leather-making machine according to claim 8, characterized in that, The second driver (14) is a screw motor. One of the fixed suspension blocks (11) is provided with two guide shafts (17). The two guide shafts (17) are located on the left and right sides of the screw motor and are parallel to each other. One end of the guide shaft (17) is detachably connected to one of the fixed suspension blocks (11). The base plate (10) is provided with two connecting seats (18) that are detachably connected to the other ends of the two guide shafts (17). The connecting seats (18) are detachably connected to the base plate (10). The other suspension block (11) is provided with two guide sleeves (19) that are matched one-to-one with the two guide shafts (17). The suspension block (11) is sleeved on the two guide shafts (17) through the two guide sleeves (19) and then slides in the front-back direction with the guide shafts (17) under the drive of the screw motor.

11. The cutting structure for a leather-making machine according to claim 5, characterized in that, The suspension block (11) is provided with a vertically distributed and parallel pull rod 1 (20) and a pull rod 2 (21). One end of the pull rod 1 (20) is fixedly connected to the left side of the suspension block (11), and the other end of the pull rod 1 (20) is suspended outside the left side of the suspension block (11) and has several through holes 1 (22) distributed along its length. A tension spring (23) is hung in any one of the through holes 1 (22). The middle part of the pull rod 2 (21) is rotatably connected to the suspension block (11), and one end of the pull rod 2 (21) is located on the right side of the suspension block (11). The pull rod 2 (21) on one of the suspension blocks (11) is located on the suspension block (11). One end of the right side is rotatably connected to the center of the paper cutter (4). The other end of the pull rod (21) on the right side of the suspension block (11) is rotatably connected to the center of the dotted line knife (5). The other end of the pull rod (21) is suspended outside the left side of the suspension block (11) and has several through holes (24) that correspond to the through hole (22) vertically. The several through holes (24) are distributed along the length of the pull rod (21). One end of the tension spring (23) is detachably connected to the through hole (22), and the other end of the tension spring (23) is detachably connected to the through hole (24) that corresponds to the through hole (22) vertically.