Zipper cutting machine

Abstract

The invention relates to a zipper cutting machine which solves the problems that in the prior art, time and labor are wasted during manual zipper cutting, waste is easily caused and the like, according to the technical scheme, the zipper cutting machine comprises an unwinding mechanism and a cutting mechanism, and the unwinding mechanism comprises an unwinding structure and a power mechanism for driving the unwinding structure to rotate; the device is characterized in that the device further comprises a flattening mechanism arranged between the unwinding mechanism and the cutting mechanism, the unwinding mechanism is used for enabling the zipper roll to keep constant tension to stably release the zipper, the flattening mechanism is used for enabling the released zipper to keep flat and prevent torsion, and the cutting mechanism is used for cutting the released zipper. The zipper cutting device has the advantages that the zipper is cut through mechanical equipment, the zipper roll can keep constant tension to stably release the zipper, the zipper is flattened and prevented from twisting through the flattening mechanism, and therefore the zipper cutting efficiency and quality can be improved, the labor intensity can be reduced, consumption of the zipper on a mattress is reasonable, and the cost can be accurately controlled; and the waste condition is reduced and even avoided.

Description

Technical Field

[0001] The invention relates to the field of machinery, and in particular to a zipper cutting machine. Background Art

[0002] The zipper on the existing mattress and other supplies (such as cushions, pillows, quilt covers, bed covers, comfort covers on mattresses, mattress core covers, etc., in order to simplify the description, this article uses mattresses to replace various supplies) is a zipper that runs from the beginning to the end along the side of the mattress. The zipper is set to facilitate the upper layer, the lower layer and the surrounding edge to be detached from the mattress for replacement or cleaning. The existing zipper is formed by pulling out a certain length of zipper from a rolled zipper roll, cutting it, and then installing a zipper head to form a zipper of appropriate length to be used on the mattress. Since mattresses have different specifications and sizes, zippers of different lengths also need to be cut.

[0003] At present, zippers are cut manually, but manual cutting of zippers often has the following problems: 1. Since mattress zippers are long, manual measurement and cutting are time-consuming and laborious. 2. During the cutting process, the zipper is manually pulled out from the zipper roll, and each zipper needs to be pulled out several times. The tension generated on the zipper during each pulling process is different, resulting in different lengths of the zippers cut out. If it is too long, it will lead to a large consumption of zippers and increase the cost of zippers; if it is too short, it will not fit the size of the mattress, resulting in the entire zipper being unusable, resulting in higher costs for zipper consumption. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problems existing in the prior art and to provide a zipper cutting machine. By cutting zippers through mechanical equipment, the zipper roll can maintain constant tension and release the zipper smoothly, and the zipper can be flattened and twist-proofed through a flattening mechanism, thereby improving the zipper cutting efficiency and quality, which is beneficial to making the consumption of zippers on mattresses reasonable and the cost can be controlled more accurately, reducing or even avoiding the waste caused by zippers being too long or too short.

[0005] The above technical purpose of the present invention is mainly solved by the following technical solutions: a zipper cutting machine, including a reeling mechanism and a cutting mechanism, the reeling mechanism includes a reeling structure, a power mechanism driving the reeling structure to rotate, characterized in that it also includes a flattening mechanism arranged between the reeling mechanism and the cutting mechanism, the reeling mechanism is used to keep the zipper roll at a constant tension to release the zipper smoothly, the flattening mechanism is used to keep the released zipper flat and anti-twist, and the cutting mechanism is used to cut the released zipper. Cutting the zipper by mechanical equipment can keep the zipper roll at a constant tension to release the zipper smoothly, avoid problems such as too long zipper due to low tension or too short zipper due to high tension, and make the zipper flat and anti-twist by the flattening mechanism, so as to improve the efficiency and quality of zipper cutting, and further facilitate the reasonable consumption of zippers on items such as mattresses and the cost can be more accurately controlled, reduce or even avoid the waste caused by too long or too short zippers.

[0006] As a further improvement and supplement to the above technical solution, the present invention adopts the following technical measures: the unwinding structure includes a turntable arranged vertically and tilted upwards in coordination with the power mechanism, and a roll-up structure arranged on the turntable and tilted upwards protruding, the roll-up structure is used to be inserted into the cavity of the zipper roll, so that the zipper roll is limited and supported on the turntable, the power mechanism is used to rotate the turntable, the turntable drives the roll-up structure to rotate synchronously, so that the zipper roll rotates synchronously with the turntable and the roll-up structure to release the zipper. The roll-up structure is used to fix the zipper roll, and the roll-up structure tilts upwards protruding, so that the turntable can both support the zipper roll and reduce the load of the power mechanism, and it is convenient to rotate the turntable, so that the zipper roll can release the zipper steadily with constant tension. By rotating the turntable through the power mechanism, the turntable rotates at a uniform speed, which is also beneficial to controlling the zipper roll to release the zipper steadily and with constant tension, thereby helping to control the length of the cut zipper and ensure that the length of each cut zipper remains basically consistent. This is not only beneficial to the subsequent production and processing of mattresses and other products, but also helps to improve the utilization rate of zippers and reduce costs.

[0007] Preferably, the flattening mechanism includes a base, a first positioning mechanism, a flattening mechanism, and a second positioning mechanism arranged on the base and arranged in sequence along the advancing direction of the zipper, wherein the first positioning mechanism is used to flatten, position, and guide the zipper, the flattening mechanism is used to press the zipper on the table surface of the base so that the lower part of the zipper is supported, and the second positioning mechanism accurately positions the zipper and stably moves in accordance with the table surface. By setting the flattening mechanism, the zipper can always remain flat when it is transported to the cutting part, which is not only conducive to improving the cutting accuracy, but also conducive to flat cutting, facilitating the subsequent application of the zipper for production and processing, and facilitating the efficient subsequent work.

[0008] Preferably, the flattening mechanism comprises a pressing sheet with two ends pivotally connected to the base, and the front end and thickness of the pressing sheet have an upturned portion, and the upturned portion makes the zipper inlet and outlet ends of the pressing sheet smooth, which is used to prevent hooking and scratching and guide the zipper. The zipper passes through the gap between the pressing sheet and the surface of the base, so that the zipper remains flat during the transmission process, avoids curling and twisting, and makes the front and back of the zipper always consistent, which is conducive to improving the cutting efficiency.

[0009] Preferably, the first positioning mechanism comprises a pivot shaft with two ends pivotally connected to the base, and a plurality of positioning pieces arranged on the pivot shaft, wherein the width of the positioning piece is adapted to the width of the cloth piece on the zipper, and the spacing between adjacent positioning pieces is adapted to the width of the sprocket teeth on the zipper, and two adjacent positioning pieces are used to press on two cloth pieces on a zipper respectively to prevent the zipper from twisting and transmitting. The arrangement of a plurality of positioning pieces facilitates multiple zippers to enter the cutting mechanism for cutting at the same time, thereby facilitating the improvement of cutting efficiency.

[0010] Preferably, the second positioning mechanism includes a plurality of positioning blocks arranged at intervals on the base, and the spacing between adjacent positioning blocks is adjustable, which is used to adapt the size of the zipper and press the two pieces of cloth on the chain, so that the zipper fits the table surface and is accurately cut. The setting of the positioning blocks is conducive to further ensuring the anti-rolling, anti-twisting and anti-deviating effects of the zipper, so that the zipper always maintains a suitable position to enter the cutting mechanism for cutting, thereby helping to improve the cutting accuracy.

[0011] Preferably, a roller is further provided between the second positioning mechanism and the cutting mechanism, and the rotation of the roller drives the zipper to move toward the cutting mechanism, so that the zipper moves with constant tension, prevents stretching or stacking. There is a certain pressure between the roller and the zipper, and the roller rolls to generate friction between the roller and the zipper, which drives the zipper to move into the cutting mechanism, which is conducive to controlling the moving speed and displacement of the zipper, thereby facilitating the control of the cutting mechanism to accurately cut the zipper, and ensuring that the length of the cut zipper has a certain accuracy.

[0012] Preferably, the zipper cutting machine further comprises a dotting mechanism, which is arranged between the flattening mechanism and the cutting mechanism, and the dotting device on the dotting mechanism is used to dot and mark the zipper, and the dotting device is arranged in front of the cutting blade of the cutting mechanism. The dotting mechanism is used to dot and mark the zipper, which is convenient for the operator to observe the dot marks in time and perform corresponding actions when the zipper is applied to actual products for processing operations (such as the sewing of one side of the mattress is completed, and it is necessary to turn and sew the other side), which is convenient for the operator to make corresponding actions in time, thereby facilitating the improvement of subsequent processing efficiency and quality.

[0013] Preferably, the zipper cutting machine also includes several groups of tension buffer mechanisms, which are arranged between the flattening mechanism and the unwinding mechanism. The tension buffer mechanism is used to buffer and guide the zipper, to prevent the zipper from winding, and to appropriately lengthen the zipper's stroke, so that the zipper always remains flat and maintains appropriate tension, and is conducive to improving the flattening effect of the subsequent flattening mechanism, ultimately ensuring that the zipper has a constant tension and enters the cutting mechanism flatly for cutting.

[0014] Preferably, the tension buffer mechanism comprises a U-shaped support block with adjustable height, a guide roller spaced apart from the support block and arranged above the support block, the space between the support block and the guide roller is a zipper through-channel, the inner cavity width of the support block is adapted to the zipper width, and is used to make the zipper move smoothly with constant tension. The guide roller keeps rolling during operation, the zipper fits the guide roller, and the rolling of the guide roller generates friction on the zipper, and the friction drives the zipper to output in the direction of the flattening mechanism, which not only generates a driving force on the zipper to keep the zipper in constant tension, but also helps to keep the zipper in a flat conveying state.

[0015] The invention has the following beneficial effects: 1. By cutting the zipper through mechanical equipment, the zipper roll can maintain constant tension and release the zipper smoothly, and the zipper can be flattened and twisted by the flattening mechanism, thereby improving the efficiency and quality of zipper cutting, which is conducive to making the consumption of zippers on mattresses reasonable and the cost can be more accurately controlled, reducing or even avoiding the waste caused by zippers being too long or too short. 2. The sleeve roll structure is used to fix the zipper roll, and the sleeve roll structure is inclined and protrudes upward, so that the turntable can both support the zipper roll and reduce the load of the power mechanism, making it convenient to rotate the turntable, so that the zipper roll can release the zipper steadily and with constant tension. 3. By rotating the turntable through the power mechanism, the turntable rotates at a uniform speed, which is also conducive to controlling the zipper roll to release the zipper steadily and with constant tension, thereby controlling the length of the cut zipper, and ensuring that the length of each cut zipper is basically consistent, which is not only conducive to the subsequent production and processing of mattresses and other products, but also conducive to improving the utilization rate of zippers and reducing costs. 4. By setting up the leveling mechanism, the zipper can always remain level when it is transferred to the cutting part, which is not only conducive to improving the cutting accuracy, but also conducive to level cutting, which is convenient for the subsequent application of the zipper for production and processing, and is conducive to the efficient subsequent work. 5. The dotting mechanism is used to mark the zipper with dots, which is convenient for the zipper to be used in the actual product for processing. The operation function can observe the dotting mark in time and perform the corresponding action (such as the mattress is sewn on one side and needs to turn and sew the other side), which is convenient for the operator to make corresponding actions in time, thereby improving the efficiency of subsequent processing and improving the quality of subsequent processing. 6. The setting of the tension buffer mechanism is used to buffer and guide the zipper, to prevent the zipper from winding, and to appropriately lengthen the zipper's stroke, so that the zipper always remains level and maintains appropriate tension, which is conducive to improving the leveling effect of the subsequent leveling mechanism, and finally ensures that the zipper has a constant tension and enters the cutting mechanism for cutting in a level manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention (on which a zipper roll is placed).

[0017] Figure 2 It is a structural schematic diagram of the unwinding mechanism and the tension buffer mechanism in the present invention.

[0018] Figure 3 yes Figure 1 Removal Figure 2 A schematic diagram of a structure other than the one involved.

[0019] Figure 4 yes Figure 3 A structural schematic diagram from another perspective.

[0020] In the figure: 1. unwinding mechanism; 2. cutting mechanism; 3. turntable; 4. winding structure; 5. base; 6. first positioning mechanism; 7. flattening mechanism; 8. second positioning mechanism; 9. pressing plate; 10. upturned part; 11. pivot; 12. positioning plate; 13. positioning block; 14. table; 15. roller; 16. dotting mechanism; 17. dotting device; 18. cutting knife; 19. tension buffer mechanism; 20. supporting block; 21. guide roller; 22. zipper; 23. zipper roll; 24. guide rod. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0022] Example: Figure 1-Figure 4 As shown, a zipper cutting machine comprises an unwinding mechanism 1 and a cutting mechanism 2, wherein the unwinding mechanism 1 comprises an unwinding structure and a power mechanism for driving the unwinding structure to rotate.

[0023] The difference between the present technical solution and the prior art is that the zipper cutting machine also includes a flattening mechanism arranged between the unwinding mechanism 1 and the cutting mechanism 2, the unwinding mechanism 1 is used to keep the zipper roll 23 at a constant tension to smoothly release the zipper 22, the flattening mechanism is used to keep the released zipper 22 flat and anti-twisting, and the cutting mechanism 2 is used to cut the released zipper 22.

[0024] In the present technical solution, by cutting the zipper 22 through mechanical equipment, the zipper roll 23 can maintain a constant tension to smoothly release the zipper 22, avoiding problems such as low tension causing the zipper 22 to be too long or high tension causing the zipper 22 to be too short, and the zipper 22 can be made flat and twist-proof by a flattening mechanism, thereby improving the cutting efficiency and quality of the zipper 22, which is beneficial to making the consumption of the zipper 22 on items such as mattresses reasonable and the cost can be controlled more accurately, reducing or even avoiding the waste caused by the zipper 22 being too long or too short.

[0025] In actual applications, in order to improve the degree of automation of the zipper cutting machine, an electronic control system is often also set up. The electronic control system is connected to the electrical signal of the power mechanism (such as a motor) on the unwinding mechanism 1, and is connected to the electrical signal of the power mechanism (such as a telescopic motor) that controls the cutting knife 18 on the cutting mechanism 2 and the power mechanism (such as a telescopic motor) that controls the operation of the dotting device 17, and is used to control the automatic operation of the unwinding mechanism 1 and the cutting mechanism 2, respectively, thereby improving the cutting efficiency and cutting quality of the zipper 22.

[0026] Next, further improve the above technical solution:

[0027] In actual application, the unwinding structure includes a turntable 3 that is vertically upwardly inclined and cooperates with the power mechanism, and a winding structure 4 that is inclined upwardly protruding and is arranged on the turntable 3. The winding structure 4 is used to be inserted into the cavity of the zipper roll 23 so that the zipper roll 23 is limited and supported on the turntable 3. The power mechanism is used to rotate the turntable 3, and the turntable 3 drives the winding structure 4 to rotate synchronously, so that the zipper roll 23 rotates synchronously with the turntable 3 and the winding structure 4 to release the zipper 22.

[0028] In the present technical solution, the wrapping structure 4 is used to fix the zipper roll 23. The wrapping structure 4 is inclined and protrudes upward, so that the turntable 3 can both support the zipper roll 23 and reduce the load of the power mechanism, making it convenient to rotate the turntable 3 so that the zipper roll 23 can release the zipper 22 steadily and with constant tension.

[0029] In the present technical solution, the turntable 3 is rotated by the power mechanism so that the turntable 3 rotates at a uniform speed, which is also beneficial to controlling the zipper roll 23 to release the zipper 22 steadily and with constant tension, thereby facilitating controlling the length of the cut zipper 22 and ensuring that the length of each cut zipper 22 remains basically consistent, which is not only beneficial to the subsequent production and processing of mattresses and other products, but also beneficial to improving the utilization rate of the zipper 22 and reducing costs.

[0030] In actual application, the flattening mechanism includes a base 5, a first positioning mechanism 6, a flattening mechanism 7 and a second positioning mechanism 8 which are arranged on the base 5 and in sequence along the forward direction of the zipper 22. The first positioning mechanism 6 is used to flatten, position and guide the zipper 22. The flattening mechanism 7 is used to press the zipper 22 on the table top 14 of the base 5 so that the lower part of the zipper 22 is supported. The second positioning mechanism 8 accurately positions the zipper 22 and enables the zipper 22 to stably fit the table top 14 when moving.

[0031] In the present technical solution, by setting up a flattening mechanism, the zipper 22 can always remain flat when transmitting to the cutting part, which is not only beneficial to improving the cutting accuracy, but also beneficial to flat cutting, facilitating the subsequent application of the zipper 22 for production and processing, and facilitating the efficient implementation of subsequent work.

[0032] In actual application, the flattening mechanism 7 includes a pressing plate 9 pivotally connected to the base 5 at both ends, and the front end and thickness of the pressing plate 9 have an upturned portion 10. The upturned portion 10 makes the zipper inlet 22 end and the zipper outlet 22 end of the pressing plate 9 smooth parts, which is used to prevent the zipper 22 from being hooked and scratched.

[0033] In this technical solution, the zipper 22 passes through the gap between the pressing plate 9 and the surface of the base 5, so that the zipper 22 remains flat during transmission, avoiding curling and twisting, and making the front and back sides of the zipper 22 always consistent, which is beneficial to improving cutting efficiency.

[0034] In actual application, the pressing sheet 9 is in the shape of an elongated strip and is arranged across the base 5 in the width direction, so that multiple zippers 22 can pass under the pressing sheet 9 at the same time and are flattened by the pressing sheet 9 at the same time to ensure that they remain flat and avoid curling and twisting, which is beneficial for cutting multiple zippers 22 at the same time, thereby facilitating the simplification of the structure.

[0035] In actual application, the first positioning mechanism 6 includes a pivot 11 pivotally connected at both ends to the base 5, and a plurality of positioning plates 12 arranged on the pivot 11. The width of the positioning plates 12 is adapted to the width of the cloth piece on the zipper 22, and the spacing between adjacent positioning plates 12 is adapted to the width of the sprocket teeth on the zipper 22. Two adjacent positioning plates 12 are used to press on two cloth pieces on a zipper 22 respectively to prevent the zipper 22 from twisting during transmission.

[0036] In the present technical solution, a plurality of positioning pieces 12 are provided to facilitate multiple zippers 22 to enter the cutting mechanism 2 for cutting at the same time, thereby facilitating the improvement of cutting efficiency.

[0037] In practical applications, in order to avoid interference between adjacent zippers 22 , at least one positioning piece 12 is provided between adjacent zippers 22 to form an interval arrangement.

[0038] In actual application, the second positioning mechanism 8 includes a plurality of positioning blocks 13 spaced apart on the base 5, and the spacing between adjacent positioning blocks 13 is adjustable, which is used to adapt to the size of the zipper 22 and press the two pieces of cloth on the chain, so that the zipper 22 fits the table top 14 and is precisely cut.

[0039] In the present technical solution, the setting of the positioning block 13 is conducive to further ensuring the anti-curling, anti-twisting and anti-deviating effects of the zipper 22, so that the zipper 22 always maintains a suitable position to enter the cutting mechanism 2 for cutting, thereby helping to improve the cutting accuracy.

[0040] In the technical solution, one end of the positioning piece 12 is rotatably limited by the pivot 11, and the other end can be turned up and down by the action of the zipper 22, which is convenient for the zipper 22 to efficiently level the channel and is conducive to leveling the zipper 22. The positioning piece 12 is block-shaped, and the interval between the positioning block 13 and the surface of the base 5 is adjusted according to the thickness of the cloth on the zipper 22. When the zipper 22 passes through the positioning block 13, the positioning block 13 remains stationary, which is conducive to the subsequent cutting knife 18 to be able to cut efficiently and accurately.

[0041] In practical applications, a roller 15 is further provided between the second positioning mechanism 8 and the cutting mechanism 2. The roller 15 rotates to drive the zipper 22 to move toward the cutting mechanism 2, so that the zipper 22 moves with constant tension and prevents stretching or stacking.

[0042] In the present technical solution, there is a certain pressure between the roller 15 and the zipper 22. The roller 15 rolls to generate friction between the roller 15 and the zipper 22. The friction drives the zipper 22 to move into the cutting mechanism 2, which is beneficial to controlling the moving speed and displacement of the zipper 22, thereby facilitating the cutting mechanism 2 to accurately cut the zipper 22 and ensure that the length of the cut zipper 22 has a certain accuracy.

[0043] In actual application, the zipper cutting machine also includes a dotting mechanism 16, which is arranged between the flattening mechanism and the cutting mechanism 2. The dotting device 17 on the dotting mechanism 16 is used to mark the zipper 22, and the dotting device 17 is arranged in front of the cutting knife 18 of the cutting mechanism 2.

[0044] In the present technical solution, the dotting mechanism 16 is used to mark the zipper 22 with dots, so that when the zipper 22 is applied to the actual product for processing, the operating function can timely observe the dot marks and perform corresponding actions (such as when one side of the mattress is sewn, it is necessary to turn and sew the other side), so that the operator can make corresponding actions in time, which is beneficial to improve the subsequent processing efficiency and the quality of subsequent processing.

[0045] In actual application, the zipper cutting machine also includes several groups of tension buffer mechanisms 19, which are arranged between the flattening mechanism and the unwinding mechanism 1. The tension buffer mechanism 19 is used to buffer and guide the zipper 22, to prevent the zipper 22 from winding, and to appropriately lengthen the stroke of the zipper 22, so that the zipper 22 always remains flat and maintains appropriate tension, and is conducive to improving the flattening effect of the subsequent flattening mechanism, ultimately ensuring that the zipper 22 has constant tension and enters the cutting mechanism 2 flatly for cutting.

[0046] In this embodiment, the unwinding mechanism 1 is provided with two groups facing each other, and preferably, there are four positioning pieces 12, and two positioning pieces 12 at the two ends cooperate to position a zipper 22. The tension buffer mechanism 19 is provided in two groups adjacent to each other, and the two groups of tension buffer mechanisms 19 are provided on the same base 5. When two zippers 22 pass through different tension buffer mechanisms 19 and different positioning pieces 12 at the same time, the two groups of tension buffer mechanisms 19 are independent of each other, and the interval between the two rows of positioning pieces 12 in the middle is empty, so that the two adjacent zippers 22 avoid mutual interference when cutting at the same time, and are independent of each other, which is conducive to efficient simultaneous cutting of two zippers 22 and conducive to ensuring cutting efficiency.

[0047] In practical applications, the tension buffer mechanism 19 includes a U-shaped support block 20 with adjustable height, a guide roller 21 spaced apart from the support block 20 and arranged above the support block 20, the space between the support block 20 and the guide roller 21 is a zipper through-channel, and the inner cavity width of the support block 20 is adapted to the width of the zipper 22, so as to enable the zipper 22 to move smoothly and with constant tension. The space between the support block 20 and the guide roller 21 forms a zipper through-channel, which is used to prevent the zipper 22 from twisting during the transmission process, so as to achieve the purpose of enabling the zipper 22 to pass smoothly and maintain the flatness.

[0048] In the present technical solution, the base 5 on which the tension buffer mechanism 19 is arranged is the same base 5 as the base 5 on which the unwinding mechanism 1 is arranged. Four vertical guide rods 24 are arranged on the base 5 of the tension buffer mechanism 19, and a U-shaped supporting block 20 is arranged on two adjacent vertical guide rods 24, and can be moved up and down along the guide rods 24 to adjust the position.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. In the above embodiments, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A zipper cutting machine, comprising an unwinding mechanism (1) and a cutting mechanism (2), wherein the unwinding mechanism (1) comprises an unwinding structure, a power mechanism for driving the unwinding structure to rotate, and characterized in that The invention also comprises a flattening mechanism arranged between the unwinding mechanism (1) and the cutting mechanism (2); the unwinding mechanism (1) is used to keep the zipper roll (23) at a constant tension and release the zipper (22) smoothly; the flattening mechanism is used to keep the released zipper (22) flat and anti-twisting; and the cutting mechanism (2) is used to cut the released zipper (22).

2. The zipper cutting machine according to claim 1, characterized in that The unwinding structure comprises a turntable (3) arranged vertically and tilted upwards and cooperating with the power mechanism, and a roll-up structure (4) arranged on the turntable (3) and tilted and protruding upwards, wherein the roll-up structure (4) is used to be inserted into the cavity of the zipper roll (23) so that the zipper roll (23) is limited and supported on the turntable (3), and the power mechanism is used to rotate the turntable (3), and the turntable (3) drives the roll-up structure (4) to rotate synchronously, so that the zipper roll (23) rotates synchronously with the turntable (3) and the roll-up structure (4) to release the zipper (22).

3. The zipper cutting machine according to claim 1, characterized in that The flattening mechanism comprises a base (5), a first positioning mechanism (6), a flattening mechanism (7) and a second positioning mechanism (8) which are arranged on the base (5) and are arranged in sequence along the advancing direction of the zipper (22); the first positioning mechanism (6) is used for flattening, positioning and guiding the zipper (22); the flattening mechanism (7) is used for pressing the zipper (22) on the table surface (14) of the base (5) so that the lower part of the zipper (22) is supported; the second positioning mechanism (8) enables the zipper (22) to be positioned accurately and enables the zipper (22) to stably fit the table surface (14) and move.

4. The zipper cutting machine according to claim 3, characterized in that The flattening mechanism (7) comprises a pressing plate (9) pivotally connected at both ends to the base (5), the front end and thickness of the pressing plate (9) having an upturned portion (10), the upturned portion (10) making the zipper inlet (22) end and the zipper outlet (22) end of the pressing plate (9) smooth, and used for preventing the zipper (22) from being hooked or scratched.

5. The zipper cutting machine according to claim 3, characterized in that The first positioning mechanism (6) comprises a pivot (11) pivotally connected at both ends to the base (5), and a plurality of positioning pieces (12) arranged on the pivot (11). The width of the positioning pieces (12) is adapted to the width of the cloth pieces on the zipper (22), and the spacing between adjacent positioning pieces (12) is adapted to the width of the chain teeth on the zipper (22). Two adjacent positioning pieces (12) are used to press on two cloth pieces on a zipper (22) respectively to prevent the zipper (22) from twisting during transmission.

6. The zipper cutting machine according to claim 3, characterized in that The second positioning mechanism (8) comprises a plurality of positioning blocks (13) arranged at intervals on the base (5), and the spacing between adjacent positioning blocks (13) is adjustable, and is used to fit the size of the zipper and press the two pieces of cloth on the chain, so that the zipper (22) fits the table top (14) and is accurately cut.

7. The zipper cutting machine according to claim 6, characterized in that A roller (15) is also provided between the second positioning mechanism (8) and the cutting mechanism (2), and the roller (15) rotates to drive the zipper (22) to move toward the cutting mechanism (2), so that the zipper (22) moves with constant tension and prevents stretching or stacking.

8. The zipper cutting machine according to any one of claims 1 to 7, characterized in that The invention also comprises a dotting mechanism (16), wherein the dotting mechanism (16) is arranged between the flattening mechanism and the cutting mechanism (2), and a dotting device (17) on the dotting mechanism (16) is used to dot and mark the zipper (22), and the dotting device (17) is arranged in front of the cutting knife (18) of the cutting mechanism (2).

9. The zipper cutting machine according to any one of claims 1 to 7, characterized in that It also comprises a plurality of groups of tension buffer mechanisms (19), wherein the tension buffer mechanisms (19) are arranged between the flattening mechanism and the unwinding mechanism (1), and the tension buffer mechanisms (19) are used for buffering and guiding the zipper (22) and for preventing the zipper (22) from winding.

10. The zipper cutting machine according to claim 8, characterized in that The tension buffer mechanism (19) comprises a U-shaped supporting block (20) with adjustable height, and a guide roller (21) spaced apart from the supporting block (20) and arranged above the supporting block (20); the space between the supporting block (20) and the guide roller (21) is a passage through which the zipper (22) passes; the inner cavity width of the supporting block (20) is adapted to the width of the zipper (22) so as to enable the zipper (22) to move smoothly with constant tension.

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