Self-adhesive paper cutting device

By designing a self-adhesive paper cutting device including moving parts, mounts and cutting needles, the scratch problem caused by the blade movement during self-adhesive paper is solved, the service life of the base is extended, and suitable for self-adhesive paper cutting of different thicknesses.

CN223013363UActive Publication Date: 2025-06-24SHENZHEN ZHENGXINYUAN INDAL
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Patent Information

Application Number
CN202422176229.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-04
Publication Date
2025-06-24
Estimated Expiration
2034-09-04

AI Technical Summary

Technical Problem

The sticker is easily driven to move the blade during transportation, causing the blade to leave scratches on the base of the self-adhesive paper to carry, and the base surface is easily damaged and needs to be replaced frequently.

Method used

A self-adhesive paper cutting device is designed, including a base, a guide rail and a cutting mechanism. The cutting mechanism consists of a moving piece, a mounting base and a cutting needle. The cutting needle is installed in the mounting base. The mounting base is fixed in the position of the moving piece. The cutting needle comes into contact with the adhesive paper and moves during transmission to avoid scratches on the base.

Benefits of technology

It effectively avoids scratches on the base, extends the service life of the base, and adjusts the position of the cutting needle, which is suitable for cutting self-adhesive paper of different thicknesses, avoiding the problem of easy scratching the base paper by cutting blades.

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Abstract

The utility model discloses a self-adhesive paper cutting device which comprises a base, a guide rail and at least one cutting mechanism. The cutting mechanism is connected with the guide rail and moves in the direction where the guide rail is located, and the guide rail is connected with the base. The cutting mechanism comprises a moving part, a mounting seat and a cutting needle, the cutting needle is perpendicular to the moving part, the cutting needle moves in the direction perpendicular to the surface of the base, the cutting needle is connected with the mounting seat, and the mounting seat is connected with the moving part. The moving part can move in the direction where the guide rail is located, the cutting needle is installed in the installing base, the installing base is fixed to the position where the moving part is located, the needle head of the cutting needle is exposed and makes contact with the self-adhesive paper, the self-adhesive paper moves relative to the cutting needle, the self-adhesive paper can be separated by the cutting needle when conveyed, and the cutting needle is supported by the installing base to move along the guide rail. The bending or deviation amplitude is small, scratches on the base can be avoided, and the service life of the base is prolonged.
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Description

Technical Field

[0001] This application relates to the technical field of self-adhesive paper cutting, and particularly to a self-adhesive paper cutting device. Background Art

[0002] Self-adhesive paper is a composite paper with paper, film or special material as the base paper, with an adhesive coated on the back and a silicone-coated base paper as the protective paper, and is obtained through processing such as printing and die-cutting. When in use, it only needs to be peeled off from the base paper and gently pressed to stick the self-adhesive paper on the surface of various substrates.

[0003] Currently, when cutting self-adhesive paper, a blade is usually used for cutting. When the self-adhesive paper is being conveyed, it is easy to drive the blade to move, causing the blade to leave scratches on the base that bears the self-adhesive paper. The surface of the base is easily damaged after long-term use, so the base needs to be frequently replaced. Summary of the Utility Model

[0004] The technical problem to be solved by this application is that when the self-adhesive paper is being conveyed, it is easy to drive the blade to move, causing the blade to leave scratches on the base that bears the self-adhesive paper. The surface of the base is easily damaged after long-term use, so the base needs to be frequently replaced.

[0005] To solve the above technical problem, this application provides a self-adhesive paper cutting device.

[0006] The utility model discloses a self-adhesive paper cutting device, which includes a base, a guide rail and at least one cutting mechanism;

[0007] The cutting mechanism is connected to the guide rail, the cutting mechanism moves along the direction where the guide rail is located, and the guide rail is connected to the base;

[0008] The cutting mechanism includes a moving member, a mounting seat and a cutting needle. The cutting needle is perpendicularly arranged to the moving member, the cutting needle moves along the direction perpendicular to the surface of the base, the cutting needle is connected to the mounting seat, and the mounting seat is connected to the moving member.

[0009] Preferably, a mounting hole is opened at the center of the moving member, and the cutting needle is installed in the mounting hole.

[0010] Preferably, a moving hole and a positioning hole are opened on the moving member. The positioning hole is arranged close to the moving hole, and the guide rail passes through the moving hole.

[0011] Preferably, the positioning hole communicates with the moving hole.

[0012] Preferably, the cutting mechanism includes a positioning member, and the positioning member is installed in the positioning hole.

[0013] Preferably, the moving member is provided with a fixing hole, and the fixing hole and the mounting hole are installed on adjacent surfaces and communicate with each other.

[0014] Preferably, the cutting mechanism includes a fastener installed in the fixing hole, and the fastener abuts against the mounting seat.

[0015] Preferably, the mounting seat includes an outer cylinder, an inner cylinder, and a protective shell;

[0016] The outer cylinder is sleeved outside the inner cylinder, and the inner surface of the outer cylinder and the inner surface of the inner cylinder are provided with matching thread structures;

[0017] The protective shell is connected to one end of the outer cylinder, the inner cylinder is inserted from the other end of the outer cylinder, the cutting needle passes through the protective shell, and the cutting needle is inserted into the inner cylinder.

[0018] Preferably, an elastic member is included in the mounting seat, and the elastic member is installed in the inner cylinder and abuts against the cutting needle.

[0019] Preferably, a fixing seat is included, and the fixing seat is arranged at both ends of the guide rail and is connected to the base.

[0020] The above technical solution provided by the present application has the following advantages compared with the prior art:

[0021] A self-adhesive paper cutting device provided by the present application places the self-adhesive paper to be processed on the base, and the self-adhesive paper to be processed is conveyed along the base. The direction of the guide rail is perpendicular to the conveying direction of the self-adhesive paper. The moving member can move along the direction where the guide rail is located. The cutting needle is installed in the mounting seat, and the mounting seat is fixed at the position where the moving member is located. The tip of the cutting needle is exposed and contacts the self-adhesive paper. The self-adhesive paper moves relative to the cutting needle, and the self-adhesive paper can be separated by the cutting needle during conveyance. Supported by the mounting seat, the cutting needle has a small bending or offset amplitude, which can avoid scratching on the base and extend the service life of the base.

[0022] The distance between the cutting needle and the base can be adjusted, so as to adjust the cutting depth of the self-adhesive paper, which can be applicable to separating the self-adhesive paper when the base paper is intact and avoid the problem that the blade cutting is likely to cut the base paper. Description of the Drawings

[0023] The drawings here are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present invention and used together with the specification to explain the principles of the present invention.

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 Structural schematic diagram of a self-adhesive paper cutting device provided by the present application;

[0026] Figure 2 Structural schematic diagram of the self-adhesive paper;

[0027] Figure 3 Connection structure schematic diagram of the guide rail, cutting mechanism, and fixing seat of a self-adhesive paper cutting device provided by the present application Figure 1 ;

[0028] Figure 4 Connection structure schematic diagram of the guide rail, cutting mechanism, and fixing seat of a self-adhesive paper cutting device provided by the present application Figure 2 ;

[0029] Figure 5 Structural schematic diagram of the moving part of a self-adhesive paper cutting device provided by the present application;

[0030] Figure 6 Connection structure schematic diagram of the mounting seat and the cutting needle of a self-adhesive paper cutting device provided by the present application;

[0031] Figure 7 Explosion structure schematic diagram of the mounting seat and the cutting needle of a self-adhesive paper cutting device provided by the present application;

[0032] Figure 8 Connection structure schematic diagram of the protective shell and the base of a self-adhesive paper cutting device provided by the present application.

[0033] Explanation of reference numerals:

[0034] 1. Self-adhesive paper cutting device; 2. Self-adhesive paper; 21. Base paper; 22. Face paper;

[0035] 11. Base; 111. Scale; 112. Installation groove;

[0036] 12. Guide rail;

[0037] 13. Cutting mechanism; 131. Moving part; 1311. Mounting hole; 1312. Moving hole; 1313. Positioning hole; 1314. Fixing hole; 132. Mounting base; 1321. Outer cylinder; 1322. Inner cylinder; 1323. Protective shell; 1324. Elastic part; 1325. Arc surface; 133. Cutting needle; 1331. Needle head part; 1332. Connecting part; 1333. Abutting part; 134. Positioning part; 135. Fastening part;

[0038] 14. Fixed seat. Detailed implementation manner

[0039] To make the objectives, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below with reference to the accompanying drawings in this application. Apparently, the described embodiments are some but not all of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without creative efforts shall fall within the scope of protection of this application.

[0040] Refer to Figures 1-7 , the present utility model discloses a self-adhesive paper cutting device 1, which can cut self-adhesive paper 2. The self-adhesive paper 2 includes a base paper 21 and a face paper 22, and the surface of the face paper 22 in contact with the base paper 21 is coated with an adhesive.

[0041] The device includes a fixed seat 14, a base 11, at least one guide rail 12 and at least one cutting mechanism 13. The fixed seat 14 is connected to the base 11, the cutting mechanism 13 is connected to the guide rail 12, the cutting mechanism 13 moves along the direction where the guide rail 12 is located, the guide rail 12 is connected to the base 11, the fixed seat 14 is arranged at both ends of the guide rail 12, and the fixed seat 14 is installed on the base 11 to fix the installation positions of the guide rail 12 and the cutting mechanism 13. The base 11 bears the self-adhesive paper 2, a feeding mechanism is installed at one end of the base 11, the feeding mechanism conveys the self-adhesive paper 2, the self-adhesive paper 2 is conveyed from the end of the base 11 where the feeding mechanism is installed to the opposite end, the guide rail 12 is perpendicular to the conveying direction of the self-adhesive paper 2, and the cutting mechanism 13 is used for cutting the self-adhesive paper 2.

[0042] In this embodiment, two guide rails 12 are provided, and three cutting mechanisms 13 are provided, but the number of the guide rails 12 and the cutting mechanisms 13 provided is not limited to the number set in this embodiment.

[0043] As an embodiment, a scale 111 is provided on the base 11. The scale 111 is arranged parallel to the guide rail 12. The scale 111 can facilitate the operator to adjust the position of the cutting mechanism 13 according to the position and size of the self-adhesive paper 2, so that the cutting effect meets the predetermined production requirements.

[0044] As an embodiment, the base 11 is provided with a mounting groove 112, and the fixing seat 14 is mounted corresponding to the mounting groove 112. The mounting groove 112 is arranged at two opposite edges of the base 11, and the direction of the mounting groove 112 is perpendicular to the direction where the guide rail 12 is located, so that the fixing seat 14 can be mounted along the mounting groove 112.

[0045] As an embodiment, the guide rail 12 is provided with a handle, which is convenient for the operator to hold the handle and pull the guide rail 12 and the cutting mechanism 13 to move on the base 14.

[0046] The cutting mechanism 13 includes a moving member 131, a mounting seat 132 and a cutting needle 133. The cutting needle 133 is vertically arranged with respect to the moving member 131. The cutting needle 133 moves along a direction perpendicular to the surface of the base 11. The cutting needle 133 is connected to the mounting seat 132, and the mounting seat 132 is connected to the moving member 131. Specifically, the guide rail 12 passes through the moving member 131, the mounting seat 132 is mounted on the moving member 131, the cutting needle 133 is mounted at one end of the mounting seat 132, and the moving member 131 can move along the guide rail 12, so that the cutting position of the cutting needle 133 can be adjusted.

[0047] Specifically, the adhesive paper 2 to be processed is placed on the base 11, and the adhesive paper 2 to be processed is conveyed along the base 11. The direction of the guide rail 12 is perpendicular to the conveying direction of the adhesive paper 2. The moving member 131 can move along the direction where the guide rail 12 is located. The cutting needle 133 is mounted in the mounting seat 132, the mounting seat 132 is fixed at the position where the moving member 131 is located, the needle tip of the cutting needle 133 is exposed and contacts the adhesive paper 2, and the adhesive paper 2 moves relative to the cutting needle 133. When the adhesive paper 2 is conveyed, it can be separated by the cutting needle 133. Supported by the mounting seat 132, the cutting needle 133 has a small bending or offset amplitude, which can avoid scratching the base 11 and extend the service life of the base 11.

[0048] The moving member 131 is provided with a mounting hole 1311, a moving hole 1312, a positioning hole 1313 and a fixing hole 1314. The mounting hole 1311 is arranged at the central position of the moving member 131, and the size of the mounting hole 1311 matches that of the mounting seat 132. The moving hole 1312 matches the size of the guide rail 12, and the guide rail 12 is inserted into the moving hole 1312. The number of the moving holes 1312 matches the number of the guide rails 12. The positioning hole 1313 is arranged close to the moving hole 1312. The surface where the fixing hole 1314 is arranged is adjacent to the surface where the mounting hole 1311 is mounted, and the fixing hole 1314 communicates with the mounting hole 1311.

[0049] The cutting mechanism 13 includes a positioning member 134 and a fastening member 135. The positioning member 134 is installed in the positioning hole 1313, and the fastening member 135 is installed in the fixing hole 1314. The fastening member 135 can abut against the side surface of the mounting seat 132 from the position of the fixing hole 1314. The positioning hole 1313 is arranged at the edge of the moving member 131, and the outer surface of the positioning member 134 and the inner wall of the positioning hole 1313 are provided with matching thread structures. Specifically, the cooperation between the positioning member 134 and the positioning hole 1313 can fix the cutting mechanism 13 at any position on the guide rail 12, which is convenient for the operator to adjust the positions of the moving member 131 and the cutting needle 133 according to the cutting position requirements of the sticker paper 2. The setting of the fastening member 135 can abut against the mounting seat 132 to prevent the mounting seat 132 from moving up and down at the position of the mounting hole 1311, so that the distance between the end of the cutting needle 133 on the mounting seat 132 and the base 11 is fixed, ensuring a good cutting effect.

[0050] As an embodiment, the moving member 131 can be divided into two parts. The moving member 131 is divided into the same first part and second part. The moving hole 1312 is divided into two grooves matching the outer shape of the guide rail 12. By buckling the first part and the second part, the installation is more convenient. The first part and the second part are both provided with positioning holes 1313. By inserting the positioning member 134 into the positioning holes 1313, the first part and the second part can be locked. The operator can pre-move the moving member 131 to a preset position, and then lock the first part and the second part with the positioning member 134, so that the moving member 131 is fixed at the preset position, thereby preventing the cutting mechanism 13 from moving along the guide rail 12 when the sticker paper 2 is cut.

[0051] As an embodiment, the moving member 131 is provided with a notch at the position of the moving hole 1312, and both ends of the moving member 131 are divided into two parts. Both parts are provided with positioning holes 1313 and the positions correspond to each other. By inserting the positioning member 134 into the positioning holes 1313, the two parts on the notch can be locked, making the two parts approach each other relatively, reducing the inner diameter of the moving hole 1312, and thus locking the moving member 131 at any position on the guide rail 12, which is convenient for the operator to fix the moving member 131 on the guide rail 12.

[0052] As an embodiment, the positioning hole 1313 communicates with the moving hole 1312. Specifically, when the positioning member 134 is inserted into the positioning hole 1313, it can abut against the guide rail 12 on the moving hole 1312. By the positioning member 134 abutting against the guide rail 12, the moving member 131 can be fixed at any position on the guide rail 12.

[0053] The cutting needle 133 includes a needle head portion 1331, a connecting portion 1332 and a resisting portion 1333. The needle head portion 1331, the connecting portion 1332 and the resisting portion 1333 are integrally formed. The outer diameter of the connecting portion 1332 is larger than that of the needle head portion 1331 and the resisting portion 1333. A part of the needle head portion 1331 is exposed outside the mounting seat 132, and the needle head portion 1331 contacts the self-adhesive paper 2 on the base 11.

[0054] The mounting seat 132 includes an outer cylinder 1321, an inner cylinder 1322 and a protective shell 1323. The outer cylinder 1321 is sleeved outside the inner cylinder 1322, and a matching thread structure is provided on the inner surface of the outer cylinder 1321 and the inner surface of the inner cylinder 1322.

[0055] Specifically, the protective shell 1323 is connected to one end of the outer cylinder 1321. The inner cylinder 1322 is inserted from the other end of the outer cylinder 1321. The cutting needle 133 passes through the protective shell 1323 and is inserted into the inner cylinder 1322. The inner cylinder 1322 is inserted into the outer cylinder 1321. The inner cylinder 1322 and the outer cylinder 1321 can be relatively fixed through a thread mechanism. One end of the inner cylinder 1322 is used for mounting the cutting needle 133, and the outer diameter of the other end is larger than the inner diameter of the outer cylinder 1321. A limiting portion is provided on the side wall of the outer cylinder 1321. The limiting portion allows a part of the outer cylinder 1321 to be inserted into the mounting hole 1311 on the moving member 131, and another part is exposed. Since the outer diameter of one end of the inner cylinder 1322 is larger than the inner diameter of the outer cylinder 1321, a part of the inner cylinder 1322 is exposed. Since a matching thread structure is provided on the inner surface of the outer cylinder 1321 and the inner surface of the inner cylinder 1322, an operator can rotate the inner cylinder 1322 on the moving member 131 to move the inner cylinder 1322 up and down relative to the outer cylinder 1321. The cutting needle 133 is mounted on the inner cylinder 1322, so that the distance between the cutting needle 133 and the base 11 can be changed to meet the cutting requirements of different thicknesses during production. A support tube is provided in the protective shell 1323. The cutting needle 133 can be inserted into the support tube. The inner diameter of the support tube is larger than or equal to the outer diameter of the needle head portion 1331. The needle head portion 1331 of the cutting needle 133 passes through the protective shell 1323, and the exposed part of the needle head portion 1331 is exposed. The support tube can limit the bending amplitude of the cutting needle 133, avoid its deviation from the preset cutting path, and ensure a good cutting effect.

[0056] It can be understood that the distance between the cutting needle 133 and the base 11 can be adjusted through the mounting seat 132, so as to adjust the cutting depth of the self-adhesive paper 2. It is applicable to cutting the face paper 22 of the self-adhesive paper 2 while the base paper 21 is intact, but the complete base paper 21 is retained. It can avoid the problem that the existing blade cutting is easy to cut through the base paper 21 and meet more production requirements.

[0057] As an embodiment, an elastic member 1324 is included in the mounting base 132. The elastic member 1324 is installed in the inner cylinder 1322, and the elastic member 1324 abuts against the cutting needle 133. Specifically, the elastic member 1324 is sleeved on the abutting portion 1333. One end of the elastic member 1324 abuts against the connecting portion 1332, and the other end abuts against the inner cylinder 1322. Through the elastic force exerted by the elastic member 1324, the cutting needle 133 can always abut against the adhesive paper 2 on the base 11. In addition, the elastic member 1324 can avoid continuously applying a force to the base 11 and prevent scratching the surface of the base 11.

[0058] As an embodiment, at least two petal-shaped clamping pieces are provided at the position where the inner cylinder 1322 contacts the cutting needle 133. The petal-shaped clamping pieces can clamp the cutting needle 133 inserted into the inner cylinder 1322, so as to fixedly install the cutting needle 133 in the inner cylinder 1322.

[0059] As an embodiment, as Figures 7-8 shown, the protective shell 1323 is provided with an arc surface. The needle head portion 1331 of the cutting needle 133 penetrates through one end of the protective shell 1323, and the arc surface is provided at this end of the protective shell 1323.

[0060] Specifically, from the edge to the central position of the arc surface, the distance between it and the base becomes smaller, so that the adhesive paper 2 is pressed between the arc surface and the base before approaching the cutting needle. During transmission, there may be a situation where the height of the protective shell 1323 is set too low. At this time, the starting end of the adhesive paper 2 will abut against the edge of the protective shell 1323 during transmission, resulting in subsequent stacking of the adhesive paper 2 in front of the cutting mechanism 13 and affecting the feeding of the adhesive paper 2. By providing an arc surface on the surface of the protective shell 1323, the height of the feeding position at the edge of the protective shell 1323 is raised, which can prevent the adhesive paper 2 from abutting against the edge of the protective shell 1323 during feeding and make the feeding smoother. At the same time, within the range where the adhesive paper 2 enters the cutting mechanism 13, the cutting mechanism 13 will also apply a pressure to the adhesive paper 2 to improve the cutting effect of the cutting needle 133.

[0061] In the above embodiments, the descriptions of the respective embodiments have their own emphases. For the parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0062] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0063] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0064] In the present utility model, unless otherwise clearly specified and defined, the terms "mounted", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it may be a connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0065] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "under" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0066] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0067] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, provided that these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these modifications and variations therein.

[0068] As described above, the above is the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A self-adhesive paper cutting device, characterized in that: It includes a base, a guide rail and at least one cutting mechanism; The cutting mechanism is connected to the guide rail, the cutting mechanism moves along the direction of the guide rail, and the guide rail is connected to the base; The cutting mechanism comprises a moving part, a mounting seat and a cutting needle. The cutting needle is arranged perpendicularly to the moving part and moves in a direction perpendicular to the surface of the base. The cutting needle is connected to the mounting seat, and the mounting seat is connected to the moving part.

2. The self-adhesive paper cutting device according to claim 1, characterized in that: A mounting hole is provided at the center of the moving part, and the cutting needle is mounted in the mounting hole.

3. The self-adhesive paper cutting device according to claim 1, characterized in that: The moving part is provided with a moving hole and a positioning hole, the positioning hole is arranged close to the moving hole, and the guide rail passes through the moving hole.

4. The self-adhesive paper cutting device according to claim 3, characterized in that: The positioning hole is communicated with the moving hole.

5. The self-adhesive paper cutting device according to claim 3, characterized in that: The cutting mechanism comprises a positioning member, and the positioning member is installed in the positioning hole.

6. The self-adhesive paper cutting device according to claim 2, characterized in that: The movable part is provided with a fixing hole, the fixing hole and the mounting hole are mounted on adjacent surfaces, and the fixing hole is communicated with the mounting hole.

7. The self-adhesive paper cutting device according to claim 6, characterized in that: The cutting mechanism comprises a fastener, which is installed in the fixing hole and abuts against the mounting seat.

8. The self-adhesive paper cutting device according to claim 1, characterized in that: The mounting seat comprises an outer cylinder, an inner cylinder and a protective shell; The outer cylinder is sleeved on the outer side of the inner cylinder, and the inner surface of the outer cylinder and the inner surface of the inner cylinder are provided with matching thread structures; The protective shell is connected to one end of the outer cylinder, the inner cylinder is inserted from the other end of the outer cylinder, the cutting needle passes through the protective shell, and the cutting needle is inserted into the inner cylinder.

9. The self-adhesive paper cutting device according to claim 8, characterized in that: The mounting seat includes an elastic member, which is mounted on the inner cylinder and abuts against the cutting needle.

10. The self-adhesive paper cutting device according to claim 1, characterized in that: It comprises a fixing seat, which is arranged at two ends of the guide rail and connected to the base.