High-speed numerical control splitting machine

By designing a limiting device, the problem that traditional slitting machines cannot adapt to thermal transfer printing paper of different diameters is solved, achieving stable limiting and precise cutting of thermal transfer printing paper, thus improving the applicability and cutting quality of the slitting machine.

CN224030258UActive Publication Date: 2026-03-24LONGKOU YULONG PAPER CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Traditional slitting machines have fixed tension roller limit plates, which cannot adapt to thermal transfer printing papers of different diameters, resulting in edge curling that affects cutting accuracy and quality, and thus has low applicability.

Method used

A limiting device was designed, including a drive mechanism, a screw hole block, a groove frame, and a limiting wheel. By adjusting the distance of the screw hole block and the reset action of the spring, the edge of the thermal transfer printing paper is limited to avoid curling and to adapt to paper rolls of different diameters.

Benefits of technology

It improves the applicability and cutting quality of the slitting machine, ensuring precise cutting of thermal transfer printing paper and adapting to the needs of paper rolls of different diameters.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a high-speed numerical control splitting machine, and relates to the field of high-speed numerical control splitting machines, which comprises a splitting machine main body and is characterized in that a limiting device is arranged, one connecting frame is pressed downwards to drive a first spring to be compressed, and the other connecting frame is pressed downwards to drive a second spring to be compressed; then, a driving mechanism is started to drive two screw hole blocks to slide in the inner wall of the splitting machine body in the opposite directions until the outer surface of a round roller on one side of a groove frame is attached to the edge of the thermosensitive transfer printing paper roll, and at the moment, the outer surfaces of the other connecting frame and a plurality of limiting wheels are attached to one side of the thermosensitive transfer printing paper roll; then the pressed connecting frame is loosened, the limiting wheel is reset to be attached to the other side of the thermosensitive transfer printing paper roll under the reset of the first spring, the edge of the thermosensitive transfer printing paper roll is clamped, the edge warping condition during conveying is avoided, the thermosensitive transfer printing paper roll conveying device can adapt to thermosensitive transfer printing paper rolls with different diameter sizes by adjusting the groove frame, and the conveying efficiency is improved. The applicability of the splitting machine main body is improved, and the cutting quality is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to high -speed numerical control slitting machine field especially a high -speed numerical control slitting machine. BACKGROUND

[0002] High -speed numerical control slitting machine is a kind of high -precision, high -efficiency equipment, it is mainly used to cut the material according to the set width of big roll, it adopts numerical control technology to control cutting process, can keep stability in high -speed operation, ensure cutting precision and quality.

[0003] When using the slitting machine main body heat-sensitive transfer printing paper to carry out slitting processing, the heat-sensitive transfer printing paper roll sleeve is installed on the outer surface of the unwinding roller, then one end of the heat-sensitive transfer printing paper is pulled and flattened by passing through several tension rollers, finally the end is fixed on the winding roller, then the driving mechanism inside the slitting machine main body is started to drive the sliding frame to slide to adjust the distance and height distance between the several cutting knives, finally the driving mechanism inside the slitting machine main body drives the unwinding roller and the winding roller to rotate, one unwinds the heat-sensitive transfer printing paper roll, and the other winds the cut heat-sensitive transfer printing paper, during the transmission process of the heat-sensitive transfer printing paper, the cutting knife is started to rotate at the same time to cut the heat-sensitive transfer printing paper conveyed on the tension roller, since the diameter size of the heat-sensitive transfer printing paper roll needs to be different, the limiting plate at both ends of the tension roller on the slitting machine main body is usually fixed, which cannot limit the heat-sensitive transfer printing paper of multiple diameter sizes, and the traditional limiting mechanism usually blocks the both ends of the tension pipe by the baffle, if the heat-sensitive transfer printing paper is warped during conveying, it cannot be flattened, which affects the accuracy of subsequent cutting, reduces the cutting quality of the heat-sensitive transfer printing paper, and causes the traditional slitting machine main body to be inconvenient to use and low in applicability. SUMMARY

[0004] The technical problem to be solved by the utility model is that since the diameter size of the heat-sensitive transfer printing paper roll needs to be different, the limiting plate at both ends of the tension roller on the slitting machine main body is usually fixed, which cannot limit the heat-sensitive transfer printing paper of multiple diameter sizes, and the traditional limiting mechanism usually blocks the both ends of the tension pipe by the baffle, if the heat-sensitive transfer printing paper is warped during conveying, it cannot be flattened, which affects the accuracy of subsequent cutting, reduces the cutting quality of the heat-sensitive transfer printing paper, and causes the traditional slitting machine main body to be inconvenient to use and low in applicability.

[0005] The utility model discloses a technical scheme that solves its technical problem is: a high -speed numerical control cutting machine, including cutting machine main part, the one end inner wall of cutting machine main part is provided with the winding roller, the one end inner wall of cutting machine main part is provided with the unwinding roller, the inner wall of cutting machine main part is provided with a plurality of tension tubes, the one side of cutting machine main part is slidably connected with a plurality of sliding frames, the one side of sliding frame is provided with the cutting knife of rotation, the one side of cutting machine main part is located cutting knife and is provided with the limiting device away from the winding pipe side, the limiting device can be adjusted after the distance between two recessed frames, and a plurality of round rollers are driven to limit and block the both sides of the conveyed heat-sensitive transfer printing paper, and the edge of the heat-sensitive transfer printing paper is fixed by the clamping of a plurality of limiting wheels on the two connecting frames, so that the situation of edge folding does not occur.

[0006] The above-mentioned components achieve the following effects: when the cutting machine main body heat-sensitive transfer printing paper is used for cutting processing, the heat-sensitive transfer printing paper roll is installed on the outer surface of the unwinding roller, then one end of the heat-sensitive transfer printing paper is pulled through a plurality of tension rollers to flatten it, and the heat-sensitive transfer printing paper is fixed on the winding roller after passing through the limiting device, then the distance and height distance between the plurality of cutting knives are adjusted according to the size requirement of the cutting, and finally the driving mechanism inside the cutting machine main body drives the unwinding roller and the winding roller to rotate, one unwinds the heat-sensitive transfer printing paper roll, and the other winds the cut heat-sensitive transfer printing paper, and the cutting knife is started to rotate during the transmission of the heat-sensitive transfer printing paper, so that the heat-sensitive transfer printing paper conveyed on the tension roller is cut and processed.

[0007] Preferably, the limiting device comprises a driving mechanism, two screw hole blocks and two recessed frames, wherein one end of the screw hole block is slidably connected with the inner wall of one side of the cutting machine main body; two connecting frames, one side of one of the connecting frames is fixedly installed on one side of the recessed frame, and one end of the other connecting frame is slidably installed in the inner wall of the recessed frame, one side of the connecting frame is rotatably connected with a plurality of limiting wheels; a first spring, both ends of the first spring are fixedly installed on one side of the inner wall of the recessed frame and one side of the connecting frame; a plurality of round rollers rotatably connected between the two connecting frames and one side of the recessed frame.

[0008] The effect achieved by the above components is that: by setting the limiting device, after one end of the heat-sensitive transfer printing paper is passed between the two groove frames, the driving mechanism can be started to drive the two screw hole blocks to slide in the inner wall of the slitting machine body to a certain position in opposite directions, then one of the connecting frames is pressed downward in the inner wall of the groove frame, so that the first spring is compressed, and then until the outer surfaces of the plurality of rollers on one side of the groove frame are attached to the edge of the heat-sensitive transfer printing paper roll, at this time the outer surfaces of the other connecting frame and the plurality of limiting wheels are attached to one side of the heat-sensitive transfer printing paper roll, the connecting frame and the plurality of limiting wheels are reset to the other side of the heat-sensitive transfer printing paper roll under the resetting action of the first spring by releasing the pressing of the connecting frame, and the edge is clamped by the plurality of limiting wheels on the two connecting frames, which can avoid the situation that the heat-sensitive transfer printing paper roll is warped during transmission, and the groove frame and the roller can limit the two sides of the heat-sensitive transfer printing paper roll, and by adjusting the groove frame, different diameter sizes of the heat-sensitive transfer printing paper roll can be adapted, the applicability of the slitting machine body is improved, and the cutting quality is improved.

[0009] Preferably, the driving mechanism includes a threaded rod, wherein the threaded rod penetrates through one side of the inner wall of the slitting machine body, and the opposite threaded surfaces at both ends are threadedly connected with the screw hole blocks; a motor is fixedly installed on one side of the slitting machine body, and the output end is fixedly connected with one end of the threaded rod through a shaft coupling.

[0010] The effect achieved by the above components is that: by setting the driving mechanism, the output end of the motor can be started to rotate, then the threaded rod is driven to rotate in the inner wall of one side of the slitting machine body, the distance between the two screw hole blocks is adjusted, the groove frame is driven to move, and the two sides of the heat-sensitive transfer printing paper of different diameter sizes are conveniently limited.

[0011] Preferably, the inner wall of the groove frame is fixedly installed with an extension rod on one side, and one end of the extension rod penetrates through the inner wall of the first spring and is fixedly installed on one side of one of the connecting frames.

[0012] The effect achieved by the above components is that: by setting the extension rod, the inner wall of the first spring can be supported and reinforced, so that it is not easy to be damaged.

[0013] Preferably, the outer surface of the limiting wheel is fixedly installed with an anti-skid sleeve, and the anti-skid sleeve is made of rubber.

[0014] The effect achieved by the above components is that: by setting the anti-skid sleeve, the contact friction force of the outer surface of the limiting wheel can be increased, so that it is not easy to fall off when clamping and limiting the edge of the heat-sensitive transfer printing paper, and the clamping and limiting is more firm.

[0015] Preferably, the screw hole block and the groove frame are provided with a convenient replacement device, the convenient replacement device comprises two first clamping blocks, one side of the screw hole block is provided with a clamping groove, the inner walls of the clamping groove are provided with sliding grooves, one end of the first clamping block penetrates one side of the inner wall of the sliding groove and the other end is in sliding connection with the sliding groove, a second spring is sleeved and connected to the outer surface of one end of the first clamping block, and the two ends of the second spring are fixedly connected with the first clamping block and one side of the sliding groove respectively; a second clamping block, wherein one side of the second clamping block is fixedly installed on one side of the groove frame and is inserted into the inner wall of the clamping groove, and one end of the first clamping block is inserted into the inner wall of one side of the second clamping block.

[0016] The above-mentioned component achieves the effect that: by arranging the convenient replacement device, when the limiting wheel needs to be replaced due to damage and wear, the first clamping block can be manually pulled to a certain position in the inner wall of the sliding groove, the second spring is caused to contract, the first clamping block is pulled out of the inner wall of the second clamping block, then the groove frame is pulled to one end, the second clamping block is pulled out of the clamping groove, and the groove frame and the limiting wheel are detached from the screw hole block, so that replacement and treatment are facilitated.

[0017] Preferably, the entrances of the clamping grooves are provided with chamfers on both sides.

[0018] The above-mentioned component achieves the effect that: by arranging the chamfers, the area of the entrances of the clamping grooves can be increased, so that the second clamping block can be quickly aligned and clamped.

[0019] Preferably, one end of the first clamping block is fixedly provided with a pulling block, and the longitudinal section of the pulling block is in the shape of a ring.

[0020] The above-mentioned component achieves the effect that: by arranging the pulling block, the contact area of one side of the first clamping block can be increased, so that the first clamping block can be manually pulled and operated, and disassembly is facilitated.

[0021] The beneficial effects of the utility model are:

[0022] By setting a limiting device, after one end of the thermal transfer printing paper passes between the two groove frames, one of the connecting frames is pressed down in the inner wall of the groove frame, compressing its first spring. Then, the drive mechanism is activated to drive the two screw hole blocks to slide in opposite directions to a certain position in the inner wall of the slitting machine body until the outer surfaces of several rollers on one side of the groove frame are attached to the edge of the thermal transfer printing paper roll. At this time, the outer surfaces of the other connecting frame and several limiting wheels will be attached to one side of the thermal transfer printing paper roll. When the pressed connecting frame is released, under the reset action of the first spring, several limiting wheels are reset and attached to the other side of the thermal transfer printing paper roll. The edge is held by several limiting wheels on the two connecting frames, which can prevent the thermal transfer printing paper roll from curling up during transmission. At the same time, the groove frame and rollers can limit the two sides of the thermal transfer printing paper roll. By adjusting the groove frame, thermal transfer printing paper rolls of different diameters can be adapted, improving the applicability of the slitting machine body and improving the cutting quality. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Fig. 1 This is a schematic diagram of the structure of this utility model.

[0025] Fig. 2 This is a three-dimensional structural diagram of the threaded rod of this utility model;

[0026] Fig. 3 This is a three-dimensional structural diagram of the groove frame of this utility model;

[0027] Fig. 4 This is a three-dimensional structural diagram of the limiting wheel of this utility model.

[0028] Legend: 1. Slitting machine body; 2. Limiting device; 3. Easy-to-replace device; 4. Take-up roller; 5. Unwind roller; 6. Tension roller; 7. Sliding frame; 8. Cutting knife; 21. Drive mechanism; 211. Threaded rod; 212. Motor; 22. Threaded hole block; 23. Groove frame; 24. Connecting frame; 25. Limiting wheel; 26. First spring; 27. Telescopic rod; 28. Circular roller; 29. ​​Anti-slip sleeve; 31. Slot; 32. Slide groove; 33. First locking block; 34. Second spring; 35. Second locking block; 36. Pull block. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0030] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term '' connected '' '' connection '' should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium.

[0031] Figs. 1-4 The utility model provides a high -speed numerical control slitting machine, including slitting machine main body 1, the inner wall of one end of slitting machine main body 1 is provided with winding roller 4, the inner wall of one end of slitting machine main body 1 is provided with unwinding roller 5, the inner wall of slitting machine main body 1 is provided with a plurality of tension tubes, one side of slitting machine main body 1 is slidably connected with a plurality of sliding frames 7, one side of sliding frame 7 is provided with cutting knife 8, one side of slitting machine main body 1 is located cutting knife 8 away from the side of winding pipe and is provided with limiting stop 2, limiting stop 2 can be adjusted after the distance between two recessed groove frames 23, facilitate driving a plurality of round roller 28 to limit the both sides of the hot transfer printing paper transmission, and the edge of the hot transfer printing paper is fixed by the clamping of a plurality of limiting wheels 25 on two connecting frames 24, so that the situation of edge folding does not occur.In the use of slitting machine main body 1 hot transfer printing paper and carry out slitting processing, will set up the outer surface of unwinding roller 5 with hot transfer printing paper roll, then in the one end of hot transfer printing paper is passed through a plurality of tension rollers 6 and is pulled flat, and it is passed through limiting stop 2 between, then according to the size requirement of cutting, start the drive mechanism 21 in slitting machine main body 1 drive sliding frame 7 sliding can adjust the distance between a plurality of cutting knives 8 and height distance, finally the drive mechanism 21 in slitting machine main body 1 drive unwinding roller 5 and winding roller 4 rotate, one to hot transfer printing paper roll and carry out unwinding, one to the hot transfer printing paper after cutting and carry out winding processing, in the transmission process of hot transfer printing paper, start cutting knife 8 rotation simultaneously, make it to the hot transfer printing paper on tension roller 6 transmission and carry out slitting processing.

[0032] Figs. 1-4The limiting device 2 shown includes a driving mechanism 21, two threaded hole blocks 22 and two groove frames 23, one end of the threaded hole block 22 is in sliding connection with the inner wall of one side of the slitting machine body 1, two connecting frames 24, one side of one of the connecting frames 24 is fixedly installed on one side of the groove frame 23, and one end of the other connecting frame 24 is slidingly installed in the inner wall of the groove frame 23, one side of the connecting frame 24 is rotatably connected with a plurality of limiting wheels 25, a first spring 26, both ends of the first spring 26 are fixedly installed on one side of the inner wall of the groove frame 23 and one side of the connecting frame 24 respectively, a plurality of round rollers 28, the plurality of round rollers 28 are rotatably connected between the two connecting frames 24 and one side of the groove frame 23. After one end of the heat-sensitive transfer printing paper is threaded between the two groove frames 23, the driving mechanism 21 can be started to drive the two threaded hole blocks 22 to slide in the inner wall of the slitting machine body 1 to a certain position in opposite directions, then one of the connecting frames 24 is pressed downward in the inner wall of the groove frame 23, so that its first spring 26 is compressed, then until the outer surfaces of the plurality of round rollers 28 on one side of the groove frame 23 are attached to the edge of the heat-sensitive transfer printing paper roll, at this time the other connecting frame 24 and the outer surfaces of the plurality of limiting wheels 25 will be attached to one side of the heat-sensitive transfer printing paper roll, the pressing connecting frame 24 is released, and the pressing connecting frame 24 and the plurality of limiting wheels 25 are reset to the other side of the heat-sensitive transfer printing paper roll under the resetting action of the first spring 26, the edge of the heat-sensitive transfer printing paper roll is clamped by the plurality of limiting wheels 25 on the two connecting frames 24, which can avoid the situation that the heat-sensitive transfer printing paper roll is warped during conveying, at the same time the groove frame 23 and the round roller 28 can limit the two sides of the heat-sensitive transfer printing paper roll, and by adjusting the groove frame 23, heat-sensitive transfer printing paper rolls of different diameters can be adapted, the applicability of the slitting machine body 1 is improved, and the cutting quality is improved.

[0033] Figs. 1-4The shown driving mechanism 21 includes a threaded rod 211, wherein the threaded rod 211 penetrates through the inner wall of one side of the slitter body 1, and the outer surfaces of the two ends are oppositely threaded and connected with the threaded hole blocks 22; a motor 212 is fixedly installed on one side of the slitter body 1, and the output end is fixedly connected with one end of the threaded rod 211 through a shaft coupling. The output end of the motor 212 can be started to rotate, then drive the threaded rod 211 to rotate in the inner wall of one side of the slitter body 1, adjust the distance between the two threaded hole blocks 22, drive the groove frame 23 to move, and facilitate the positioning of the two sides of the heat-sensitive transfer printing paper with different diameters. The inner wall of one side of the groove frame 23 is fixedly installed with an extension rod 27, one end of the extension rod 27 penetrates through the inner wall of the first spring 26 and is fixedly installed on one side of one of the connecting frames 24. By setting the extension rod 27, the inner wall of the first spring 26 can be supported and reinforced, so that it is not easy to be damaged. The outer surface of the limiting wheel 25 is fixedly installed with an anti-skid sleeve 29, and the anti-skid sleeve 29 is made of rubber. By setting the anti-skid sleeve 29, the contact friction force of the outer surface of the limiting wheel 25 can be increased, so that it is not easy to fall off when clamping and limiting the edge of the heat-sensitive transfer printing paper, and the clamping and limiting is more firm.

[0034] Figs. 1-4 The shown convenient replacement device 3 is arranged between the threaded hole block 22 and the groove frame 23, and the convenient replacement device 3 includes two first clamping blocks 33, the threaded hole block 22 is provided with a clamping groove 31 on one side, the inner wall of the clamping groove 31 is provided with a sliding groove 32 on both sides, one end of the first clamping block 33 penetrates through one side of the inner wall of the sliding groove 32 and the other end is slidably connected with the sliding groove 32, the outer surface of one end of the first clamping block 33 is sleeved with a second spring 34, wherein the two ends of the second spring 34 are fixedly connected with the first clamping block 33 and one side of the sliding groove 32 respectively; a second clamping block 35, wherein the second clamping block 35 is fixedly installed on one side of the groove frame 23 and inserted in the inner wall of the clamping groove 31, and one end of the first clamping block 33 is inserted in the inner wall of one side of the second clamping block 35. If the limiting wheel 25 needs to be replaced due to damage and wear, the first clamping block 33 can be manually pulled to a certain position in the inner wall of the sliding groove 32, the second spring 34 is contracted, one end of the first clamping block 33 is pulled out of the inner wall of the second clamping block 35, then the groove frame 23 is pulled to one end, the second clamping block 35 is pulled out of the clamping groove 31, and the groove frame 23 and the limiting wheel 25 are detached from the threaded hole block 22, so that the replacement can be facilitated.

[0035] Figs. 1-4The entrances of the shown clamping grooves 31 are provided with chamfers on both sides. By setting the chamfers, the area of the entrances of the clamping grooves 31 can be increased, so that the second clamping blocks 35 can be quickly aligned and clamped in. One end of the first clamping block 33 is fixedly provided with a pulling block 36, and the longitudinal section of the pulling block 36 is annular. By setting the pulling block 36, the contact area of one side of the first clamping block 33 can be increased, so that it can be manually pulled and operated, and disassembly is facilitated.

[0036] Working principle: when the slitting machine main body 1 is used to slit the heat-sensitive transfer printing paper, the heat-sensitive transfer printing paper roll is installed on the outer surface of the unwinding roller 5, then one end of the heat-sensitive transfer printing paper is pulled and flattened by passing through a plurality of tension rollers 6, and after the one end of the heat-sensitive transfer printing paper passes between the two groove frames 23, the motor 212 is started to drive the threaded rod 211 to rotate, thereby driving the two threaded hole blocks 22 to slide in the inner wall of the slitting machine main body 1 to a certain position, then one of the connecting frames 24 is pressed downward in the inner wall of the groove frame 23, so that the first spring 26 is compressed, and then the outer surfaces of the plurality of round rollers 28 on one side of the groove frame 23 are attached to the edge of the heat-sensitive transfer printing paper roll, at this time the other connecting frame 24 and the outer surfaces of the plurality of limiting wheels 25 are attached to one side of the heat-sensitive transfer printing paper roll, the connecting frame 24 that is pressed is reset to attach the plurality of limiting wheels 25 to the other side of the heat-sensitive transfer printing paper roll under the restoring action of the first spring 26, the edge of the heat-sensitive transfer printing paper roll is clamped by the plurality of limiting wheels 25 on the two connecting frames 24, which can avoid the situation that the heat-sensitive transfer printing paper roll is warped during transmission, and the groove frame 23 and the round roller 28 can limit the two sides of the heat-sensitive transfer printing paper roll, and by adjusting the groove frame 23, heat-sensitive transfer printing paper rolls of different diameters can be adapted, the applicability of the slitting machine main body 1 is improved, and the cutting quality is improved, then one end is fixed on the winding roller 4, and then the distance and height distance between the plurality of cutting knives 8 are adjusted by starting the driving mechanism 21 inside the slitting machine main body 1 to drive the sliding frame 7 to slide, finally the driving mechanism 21 inside the slitting machine main body 1 drives the unwinding roller 5 and the winding roller 4 to rotate, one unwinds the heat-sensitive transfer printing paper roll, and the other winds the cut heat-sensitive transfer printing paper, and during the transmission of the heat-sensitive transfer printing paper, the cutting knife 8 is started to rotate, so that it can slit the heat-sensitive transfer printing paper conveyed on the tension roller 6.

[0037] If the limiting wheel 25 needs to be replaced due to damage and wear, the first clamping block 33 can be manually pulled to a certain position in the inner wall of the sliding groove 32 to a certain position, the second spring 34 is driven to shrink, the first clamping block 33 is pulled out from the inner wall of the second clamping block 35, then the recess frame 23 is pulled to one end, the second clamping block 35 is pulled out from the clamping groove 31, and the recess frame 23 and the limiting wheel 25 are detached from the threaded hole block 22, so that the replacement treatment is facilitated.

[0038] With the above ideal embodiments of the present application as the inspiration, through the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content in the specification, and must be determined according to the scope of the claims.

Claims

1. A high speed numerical control slitter, comprising a slitter body (1), characterized in that: The inner wall of one end of the slitting machine body (1) is provided with a winding roller (4), the inner wall of one end of the slitting machine body (1) is provided with a unwinding roller (5), the inner wall of the slitting machine body (1) is provided with a plurality of tension pipes, a plurality of sliding frames (7) are slidingly connected to one side of the slitting machine body (1), a cutting knife (8) is rotatably arranged on one side of the sliding frame (7), a limiting device (2) is arranged on one side of the slitting machine body (1) away from the winding pipe of the cutting knife (8), the limiting device (2) can adjust the distance between the two groove frames (23), drive a plurality of round rollers (28) to limit and block the two sides of the conveyed heat-sensitive transfer printing paper, and the edges of the heat-sensitive transfer printing paper can be clamped and fixed by a plurality of limiting wheels (25) on the two connecting frames (24), so that the edge folding of the heat-sensitive transfer printing paper is prevented.

2. The high-speed numerical control slitting machine according to claim 1, characterized in that: The limiting device (2) comprises a driving mechanism (21), two screw hole blocks (22) and two groove frames (23), wherein one end of the screw hole block (22) is slidingly connected to the inner wall of one side of the slitting machine body (1); Two connecting frames (24), wherein one side of one of the connecting frames (24) is fixedly installed on one side of the groove frame (23), and one end of the other connecting frame (24) is slidingly installed in the inner wall of the groove frame (23), and one side of the connecting frame (24) is rotatably connected with a plurality of limiting wheels (25); A first spring (26), wherein the two ends of the first spring (26) are fixedly installed on the inner wall of the groove frame (23) and one side of the connecting frame (24), respectively; A plurality of round rollers (28) are rotatably connected between the two connecting frames (24) and one side of the groove frame (23).

3. The high speed numerical control slitter as claimed in claim 2, characterized in that: The driving mechanism (21) comprises a threaded rod (211), wherein the threaded rod (211) penetrates through the inner wall of one side of the slitting machine body (1), and the two ends of the threaded rod (211) are oppositely threaded and connected with the screw hole blocks (22); A motor (212) is fixedly installed on one side of the slitting machine body (1), and the output end is fixedly connected with one end of the threaded rod (211) through a shaft coupling.

4. The high speed numerical control slitter as claimed in claim 2, characterized in that: The inner wall of the groove frame (23) is fixedly installed with an extension rod (27), one end of the extension rod (27) penetrates through the inner wall of the first spring (26) and is fixedly installed on one side of the connecting frame (24).

5. The high speed numerical control slitter as claimed in claim 2, wherein: The outer surface of the limiting wheel (25) is fixedly installed with an anti-skid sleeve (29), and the anti-skid sleeve (29) is made of rubber.

6. The high speed numerical control slitter as claimed in claim 4, characterized in that: The convenient replacement device (3) is arranged between the screw hole block (22) and the groove frame (23), the convenient replacement device (3) comprises two first clamping blocks (33), one side of the screw hole block (22) is provided with a clamping groove (31), the inner walls of the clamping groove (31) are provided with sliding grooves (32) on both sides, one end of the first clamping block (33) penetrates through one side of the inner wall of the sliding groove (32) and the other end is connected with the sliding groove (32) in a sliding mode, the outer surface of one end of the first clamping block (33) is provided with a second spring (34) in a sleeved mode, and the two ends of the second spring (34) are fixedly connected with the first clamping block (33) and one side of the sliding groove (32) respectively; A second clamping block (35) is arranged, one side of the second clamping block (35) is fixedly installed on one side of the groove frame (23) and is inserted into the inner wall of the clamping groove (31), and one end of the first clamping block (33) is inserted into the inner wall of one side of the second clamping block (35).

7. The high speed numerical control slitter as claimed in claim 6, characterized in that: The clamping groove (31) is provided with chamfers on both sides of the inlet.

8. The high speed numerical control slitter as claimed in claim 6, characterized in that: One end of the first clamping block (33) is fixedly provided with a pulling block (36), and the longitudinal section of the pulling block (36) is in a ring shape.