A bead tube cutting device

Abstract

The application discloses a bead tube cutting device, a pipe cutting mechanism is arranged on the same side of a first switching frame and a second switching frame, the first switching frame and the second switching frame independently reciprocate in a first direction, or the first switching frame and the second switching frame integrally reciprocate in the first direction, after the pipe cutting mechanism completes the cutting of the pipes on one switching frame, the switching frame is switched away; the other switching frame is switched to be arranged correspondingly with the pipe cutting mechanism, and the pipe cutting mechanism completes the cutting of the pipes on the other switching frame. The pipe cutting mechanism can continuously cut the pipes, realizes efficient operation; meanwhile, the design of the two switching frames ensures uninterrupted supply of the pipes, when the pipes on one switching frame are cut, the other switching frame can arrange the pipes, reduces downtime, and improves the production efficiency of the bead tubes.

Description

Technical Field

[0001] This utility model generally relates to the field of embroidery machine technology, and more particularly to a bead tube cutting device. Background Technology

[0002] Beaded embroidery is a special embroidery technique used in computerized embroidery machines. It enhances the three-dimensionality and decorative effect of the design by incorporating beads (slender, tubular decorative elements) during the embroidery process. This technique is widely used in high-end clothing, home textiles, and handicrafts. The addition of beads gives the embroidered pattern a distinct three-dimensional effect, enhancing its visual impact; the luster and texture of the beads add a sense of luxury and artistry to the embroidery; furthermore, the beads are made of materials such as metal, plastic, or glass, possessing strong wear resistance and durability.

[0003] In related technologies, after the bead cutting device finishes cutting the material tube, it needs to be stopped to place a new material tube. This results in low cutting efficiency for the bead cutting device. Utility Model Content

[0004] This utility model provides a bead cutting device, including: a first switching frame, a second switching frame, and a bead cutting mechanism.

[0005] The first switching frame carries a plurality of first material pipes arranged in the same direction; the second switching frame carries a plurality of second material pipes arranged in the same direction, and the first switching frame and the second switching frame are arranged side by side in the first direction.

[0006] The pipe cutting mechanism is located in a direction perpendicular to the first direction and is disposed on the same side of the first switching frame and the second switching frame. The first switching frame and the second switching frame reciprocate independently in the first direction, or... The first switching frame and the second switching frame reciprocate as a whole in the first direction, so that the first switching frame and the second switching frame can be respectively arranged to correspond with the tube cutting mechanism, and the tube cutting mechanism cuts the first material tube and the second material tube into tube beads. As an implementation method, when the first switching frame and the second switching frame reciprocate independently in the first direction, at least one of the first switching frame and the second switching frame reciprocates in the vertical direction, and the pipe cutting mechanism is fixedly set in a preset position.

[0007] As an implementation, the second switching frame reciprocates in the vertical direction, and the height of the second switching frame moving along the first direction in the vertical direction is different from the height of the first switching frame moving along the first direction in the vertical direction, and the height of the preset position matches the height of the first switching frame.

[0008] As an implementation method, the first switching frame switches between a first cutting position and a first avoidance position, and the preset position is set to correspond to the first cutting position; The second switching frame performs periodic movements and has a second cutting position, a second avoidance position, a third avoidance position and a fourth avoidance position. The second cutting position is the same as the first cutting position, the second avoidance position is the same as the first avoidance position, the third avoidance position coincides with the projection of the second avoidance position on the horizontal projection plane, and the fourth avoidance position coincides with the projection of the second cutting position on the horizontal projection plane.

[0009] As an alternative implementation, a first driving mechanism and a second driving mechanism are also included. The first driving mechanism includes a first lead screw and a first slider sleeved on the first lead screw. The first lead screw is arranged along the first direction, and the first slider is connected to the first switching frame. The second drive mechanism includes a second lead screw and a second slider sleeved on the second lead screw. The second lead screw is arranged along a first direction, and the second slider is provided with a vertical telescopic member. The movable end of the vertical telescopic member is connected to the second switching frame.

[0010] As an alternative implementation, a material box mechanism is also included, which is located in a direction perpendicular to the first direction and is disposed on the other side of the first switching frame and the second switching frame, and the material box mechanism is disposed corresponding to the first avoidance position.

[0011] As an alternative implementation, a material pulling head mechanism is also included. The material pulling head mechanism is located in a direction perpendicular to the first direction and is disposed on the other side of the first switching frame and the second switching frame. The material pulling head mechanism is disposed corresponding to the first avoidance position.

[0012] As an implementation method, when the first switching frame and the second switching frame reciprocate independently in the first direction, the height of the first switching frame in the vertical direction is different from that of the second switching frame in the vertical direction, and the pipe cutting mechanism can reciprocate in the vertical direction.

[0013] As an implementation method, the pipe cutting mechanism switches between a first preset position and a second preset position, wherein the height of the first preset position matches the height of the first switching frame in the vertical direction, and the height of the second preset position matches the height of the second switching frame in the vertical direction.

[0014] As an implementation method, the first switching frame switches between a first cutting position and a first avoidance position, and the first preset position is set to correspond to the first cutting position; the second switching frame switches between a third cutting position and a fifth avoidance position, and the second preset position is set to correspond to the second cutting position; the first cutting position and the third cutting position are vertically aligned, and the second avoidance position and the fifth avoidance position are vertically aligned.

[0015] In the above-described scheme, this application uses a tube-cutting mechanism positioned on the same side of the first and second switching frames. The first and second switching frames reciprocate independently in a first direction, or they reciprocate as a whole in the first direction. After the tube-cutting mechanism completes the cutting of the tube on one switching frame, that switching frame moves away; the other switching frame moves in, corresponding to the tube-cutting mechanism, which then completes the cutting of the tube on the other switching frame. The tube-cutting mechanism can continuously cut tubes, achieving efficient operation. Simultaneously, the design of two switching frames ensures uninterrupted tube supply. While cutting tubes on one switching frame, the other switching frame can be used to arrange tubes, reducing downtime and improving bead production efficiency. Attached Figure Description

[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A top view of a bead cutting device provided in an embodiment of this utility model; Figure 2 Left view of the first bead cutting device provided in the embodiment of this utility model; Figure 3 Partial top view of the first bead cutting device provided in the embodiment of this utility model Figure 1 ; Figure 4 for Figure 3 Left eye Figure 1 ; Figure 5 for Figure 3 Left eye Figure 2 ; Figure 6 Partial top view of the first bead cutting device provided in the embodiment of this utility model Figure 2 ; Figure 7 for Figure 3 The left view; Figure 8 Left view of the second bead cutting device provided in this embodiment of the utility model; Figure 9A schematic diagram of the first motion seat assembly provided in an embodiment of this utility model; First switching frame 10, second switching frame 20, pipe cutting mechanism 30, material box mechanism 40; First drive mechanism 51, second drive mechanism 52, second lead screw 521, second slider 522, vertical telescopic component 523; Base 61, first support column 62, second support column 63; First motion seat assembly 71, first fixing pin 711, first seat body 712, second motion seat assembly 72. Detailed Implementation

[0017] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] This application proposes a bead cutting device, which is designed to precisely cut material tubes into beads of a preset length. These beads are then embroidered onto fabric using a computerized embroidery machine, giving the fabric a unique decorative aesthetic and thus significantly increasing the added value of the fabric.

[0020] like Figure 1-9 As shown, the bead cutting device includes: a first switching frame 10, a second switching frame 20, and a bead cutting mechanism 30. The first switching frame 10 carries a plurality of first material tubes arranged in the same direction; the second switching frame 20 carries a plurality of second material tubes arranged in the same direction, and the first switching frame 10 and the second switching frame 20 are arranged side by side in the first direction.

[0021] The tube cutting mechanism 30 is located in a direction perpendicular to the first direction and is disposed on the same side of the first switching frame 10 and the second switching frame 20. The first switching frame 10 and the second switching frame 20 reciprocate independently in the first direction so that the first switching frame 10 and the second switching frame 20 can be respectively disposed corresponding to the tube cutting mechanism 30. The tube cutting mechanism 30 cuts the first material tube and the second material tube into tube beads, or... The first switching frame 10 and the second switching frame 20 reciprocate as a whole in the first direction so that the first switching frame 10 and the second switching frame 20 can be respectively set to correspond with the tube cutting mechanism 30, and the tube cutting mechanism 30 cuts the first material tube and the second material tube into tube beads.

[0022] With this configuration, after the tube cutting mechanism 30 completes the cutting of the tube on one switching frame, that switching frame switches away; another switching frame switches in, corresponding to the tube cutting mechanism 30, and the tube cutting mechanism 30 completes the cutting of the tube on the other switching frame. The tube cutting mechanism 30 can continuously cut tubes, achieving efficient operation; at the same time, the design of two switching frames ensures uninterrupted tube supply. While cutting the tube on one switching frame, the other switching frame can be used to arrange tubes, reducing downtime and improving tube bead production efficiency.

[0023] The following embodiments provide a detailed description of the bead cutting device, wherein the first switching frame 10 and the second switching frame 20 reciprocate independently in a first direction: like Figure 1 As shown, the first direction is the left-right direction, and the second direction is the front-back direction, which is perpendicular to the first direction. The first switching frame 10 and the second switching frame 20 are arranged side by side in the left-right direction. Several first material tubes are arranged on the first switching frame 10 along the left-right direction, and several second material tubes are arranged on the second switching frame 20 along the left-right direction. The first material tubes and the second material tubes are arranged in parallel, and the lengths of the first material tubes and the second material tubes extend in the front-back direction.

[0024] The pipe cutting mechanism 30 is arranged in the front-to-back direction and is located on the same side of the first switching frame 10 and the second switching frame 20, as shown in the figure. The pipe cutting mechanism 30 is located at the rear end of the first switching frame 10 and the second switching frame 20.

[0025] In one specific embodiment, such as Figures 1-7 As shown, the first switching frame 10 and the second switching frame 20 reciprocate independently in the left and right directions. At the same time, at least one of the first switching frame 10 and the second switching frame 20 reciprocates in the vertical direction. The pipe cutting mechanism 30 is fixedly set in a preset position.

[0026] It should be noted that, in one embodiment, the first switching frame 10 reciprocates in the left-right direction and simultaneously reciprocates in the vertical direction; while the second switching frame 20 only reciprocates in the left-right direction; in another embodiment, the second switching frame 20 reciprocates in the left-right direction and simultaneously reciprocates in the vertical direction; while the first switching frame 10 only reciprocates in the left-right direction; in yet another embodiment, the first switching frame 10 reciprocates in the left-right direction and simultaneously reciprocates in the vertical direction, and the second switching frame 20 reciprocates in the left-right direction and simultaneously reciprocates in the vertical direction.

[0027] The second switching frame 20 reciprocates in the left-right direction and simultaneously in the vertical direction; while the first switching frame 10 only reciprocates in the left-right direction. The second switching frame 20, which moves in the left-right direction, has a different vertical height than the first switching frame 10, which also moves in the left-right direction. The height of the preset position matches the height of the first switching frame 10. The first switching frame 10 switches between a first cutting position and a first avoidance position, with the preset position corresponding to the first cutting position. The second switching frame 20 moves periodically and has a second cutting position, a second avoidance position, a third avoidance position, and a fourth avoidance position. The second cutting position is the same as the first cutting position, the second avoidance position is the same as the first avoidance position, the projection of the third avoidance position on the horizontal projection plane coincides with that of the second avoidance position, and the projection of the fourth avoidance position on the horizontal projection plane coincides with that of the second cutting position.

[0028] In detail, such as Figure 6 and Figure 7 As shown, two first support columns 62 are provided at the front and rear ends of the base 61, and a first drive mechanism 51 is provided on the two first support columns 62 at the front end, and another first drive mechanism 51 is provided on the two first support columns 62 at the rear end.

[0029] The first drive mechanism 51 is, but is not limited to, a ball screw mechanism, including a first screw and a first slider sleeved on the first screw. The first screw is arranged in the left-right direction, and the first slider is connected to the first switching frame 10. The first slider drives the first switching frame 10 to reciprocate in the left-right direction, having a first cutting position and a first avoidance position. The vertical height of the first screw axis is H1. Four first sliders are arranged at the four corners of the rectangular first switching frame 10, and the four connection points ensure the stable movement of the first switching frame 10.

[0030] like Figures 3-5 As shown, two second drive mechanisms 52 are provided between the two first drive mechanisms 51. The second drive mechanisms 52 are mounted on the base 61, with one second drive mechanism 52 positioned closer to the front and the other second drive mechanism 52 positioned closer to the rear.

[0031] The second drive mechanism 52 is, but is not limited to, a ball screw mechanism, including a second screw 521 and a second slider 522 sleeved on the second screw 521. The second screw 521 is arranged in the left-right direction, and the second slider 522 is provided with a vertical telescopic member 523, which includes, but is not limited to, a hydraulic telescopic rod or a pneumatic telescopic rod. The movable end of the vertical telescopic member 523 is connected to the second switching frame 20. Four second sliders 522 are arranged at the four corners of the rectangular second switching frame 20, and each second slider 522 is provided with a vertical telescopic member 523. The four connection points ensure the stable movement of the second switching frame 20.

[0032] When the vertical height of the second lead screw 521 axis is H1, the second slider 522 drives the second switching frame 20 to reciprocate in the left-right direction, resulting in a second cutting position and a second avoidance position. The second cutting position is the same as the first cutting position, and the second avoidance position is the same as the first avoidance position. When the vertical height of the second lead screw 521 axis is H2, where H2 is less than H1, the second slider 522 drives the second switching frame 20 to reciprocate in the left-right direction, resulting in a third avoidance position and a fourth avoidance position. The third avoidance position is directly below the second avoidance position, and the fourth avoidance position is directly below the second cutting position. The second switching frame 20 moves sequentially from the second avoidance position, the third avoidance position, the fourth avoidance position, to the second cutting position, and then returns along the original path to the second avoidance position, forming a complete cycle.

[0033] Before the pipe cutting mechanism 30, the first switching frame 10 is in the first cutting position, and the second switching frame 20 is in the second switching position. When the pipe cutting mechanism 30 operates, it first cuts the first material pipe on the first switching frame 10. After the first material pipe is switched, it switches from the first cutting position to the first clearance position. Simultaneously, the second switching frame 20 moves from the second clearance position through the third clearance position and the fourth clearance position to the second cutting position. The cutting mechanism then cuts the second material pipe on the second switching frame 20. At the current moment, a new first material pipe is placed on the first switching frame 10, which is in the first clearance position. After the second material pipe is switched, it switches from the second cutting position back to the second clearance position along the original path. Simultaneously, the first switching frame 10 switches from the first clearance position to the first cutting position to prepare for cutting. At the current moment, a new second material pipe is placed on the second switching frame 20, which is in the second clearance position.

[0034] The height of the preset position matches the height of the first switching frame 10 at the first cutting position, enabling the pipe cutting mechanism 30 to accurately cut the first material pipe on the first switching frame 10. When the height of the second switching frame 20 changes in the vertical direction, such as in the third and fourth avoidance positions, although its left-right movement trajectory is the same as that of the first switching frame 10, the two will not interfere with each other due to the height difference. This design ensures cutting accuracy and improves the overall operating efficiency of the device.

[0035] Furthermore, to achieve precise control over the movement of the first switching frame 10 and the second switching frame 20, the bead cutting device also includes a control system. The control system is electrically connected to the first drive mechanism 51 and the second drive mechanism 52, and is used to control the movement of the first drive mechanism 51 and the second drive mechanism 52 to achieve precise switching and reciprocating movement of the first switching frame 10 and the second switching frame 20. The control system can automatically schedule the movement of the first switching frame 10 and the second switching frame 20 according to a preset cutting sequence and time, ensuring the continuity and efficiency of the cutting operation.

[0036] Among them, such as Figure 1 As shown, the bead cutting device also includes a material box mechanism 40. The material box mechanism 40 is located in the second direction and is disposed in front of the first switching frame 10 and the second switching frame 20. The material box mechanism 40 is disposed corresponding to the first clearance position mentioned above.

[0037] It should be noted that, as Figure 4 , 5 As shown in Figures 7 and 9, the bead cutting device also includes a first motion seat assembly 71 and a second motion seat assembly 72. The first motion seat assembly 71 is correspondingly arranged with the first switching frame 10, and the second motion seat assembly 72 is correspondingly arranged with the second switching frame 20. The first motion seat assembly 71 and the second motion seat assembly 72 have the same structure, and the first motion seat assembly 71 will be used as an example for description: like Figure 9 As shown, the first motion seat assembly 71 includes a first seat body 712, on which a plurality of first fixing pins 711 are arranged in the left-right direction. Each first fixing pin 711 corresponds to a first material tube and is used to insert into the first material tube. Rotation of the first fixing pins 711 causes the first material tube to rotate. The first seat body 712 can reciprocate relative to the first switching frame 10 in the front-back direction, thus causing the first seat body 712 to intermittently bring the first material tube close to the tube cutting mechanism 30. The tube cutting mechanism 30 cuts the rotating first material tube to form a bead tube. The stroke of the first seat body 712 each time it approaches the tube cutting mechanism 30 controls the length of the bead tube until the first material tube is completely cut. Then, the first seat body 712 moves away from the tube cutting mechanism 30 and returns to its initial position. Figure 7 As shown, the initial position of the first base 712 is the front end of the first switching frame 10.

[0038] The material box mechanism 40 includes a material box containing adhesive. The first base 712 can rotate about a left-right axis, causing the first fixing pin 711 to swing about the same axis. The material box engages with the first fixing pin 711 so that the first fixing pin 711 contacts the adhesive. Thus, before the first material tube is inserted into the first fixing pin 711, the adhesive on the first fixing pin 711 increases the strength of the connection between the first material tube and the first fixing pin 711, preventing insecure insertion and thus aiding subsequent cutting processes. For example, it ensures stable fixing of the first material tube, helps to create a smooth cut, and guarantees the accuracy of the bead tube dimensions.

[0039] The bead cutting device also includes a material pulling head mechanism, which is located in the second direction and is disposed in front of the first switching frame 10 and the second switching frame 20. The material pulling head mechanism is disposed in accordance with the first avoidance position mentioned above.

[0040] The material removal mechanism includes two opposing friction rollers. The first base 712 can rotate around a left-right axis, causing the first fixed pin 711 to swing around this axis. The two friction rollers cooperate with the first fixed pin 711. Material heads located on the first fixed pin 711 are inserted between the two friction rollers. The friction rollers rotate to remove the material head, causing it to detach from the first fixed pin 711. This automates the removal of material heads from each of the first fixed pins 711, avoiding manual removal, reducing operator workload, shortening material head collection time, and improving bead processing efficiency.

[0041] The material box mechanism 40 and the material pulling head mechanism are both set to the same avoidance position. In this way, one material box mechanism 40 can perform the bonding treatment on the fixing pins on the first switching frame 10 and the second switching frame 20, and one material pulling head mechanism can perform the material pulling head treatment on the fixing pins on the first switching frame 10 and the second switching frame 20. This avoids the situation in related technologies where one switching frame corresponds to one material box structure and one material pulling head mechanism, thereby reducing the production cost of the entire device.

[0042] In another specific embodiment, when the first switching frame 10 and the second switching frame 20 reciprocate independently in the left-right direction, the vertical height of the first switching frame 10 is different from that of the second switching frame 20, allowing the pipe cutting mechanism 30 to reciprocate in the vertical direction. The pipe cutting mechanism 30 switches between a first preset position and a second preset position, where the height of the first preset position matches the vertical height of the first switching frame 10, and the height of the second preset position matches the vertical height of the second switching frame 20.

[0043] In detail, such as Figure 1 and Figure 8As shown, two first support columns 62 are respectively provided at the front and rear ends of the base 61. A first drive mechanism 51 is provided on the two first support columns 62 at the front end, and another first drive mechanism 51 is provided on the two first support columns 62 at the rear end. The first drive mechanism 51 includes a first lead screw and a first slider sleeved on the first lead screw. The first lead screw is arranged in the left-right direction, and the first slider is connected to the first switching frame 10. The first slider drives the first switching frame 10 to reciprocate in the left-right direction, having a first cutting position and a first avoidance position. The vertical height of the first lead screw axis is H1.

[0044] Second support columns 63 are also provided on the base 61, located between the two first drive mechanisms 51. A second drive mechanism 52 is provided on the two second support columns 63 near the front, and another second drive mechanism 52 is provided on the two second support columns 63 near the rear. Each second drive mechanism 52 includes a second lead screw 521 and a second slider 522 sleeved on the lead screw 521. The second lead screw 521 is arranged in the left-right direction, and the second slider 522 is connected to the second switching frame 20. The second slider 522 drives the first switching frame 10 to reciprocate in the left-right direction, having a third cutting position and a fifth avoidance position. The vertical height of the axis of the second lead screw 521 is H2, where H2 is less than H1.

[0045] The first and third cutting positions are vertically aligned, and the second and fifth avoidance positions are vertically aligned.

[0046] When the pipe cutting mechanism 30 is in the first preset position, the first preset position corresponds to the first cutting position. The pipe cutting mechanism 30 cuts the first material pipe on the first switching frame 10. After the first material pipe is cut, the first switching frame 10 switches to the first clearance position, and at the current moment, a new first material pipe is placed on the first switching frame 10; at the same time, the pipe cutting mechanism 30 switches from the first preset position to the second preset position, which corresponds to the third cutting position. The pipe cutting mechanism 30 cuts the second material pipe on the second switching frame 20. After the second material pipe is cut, the second switching frame 20 switches to the fifth clearance position, and at the current moment, a new second material pipe is placed on the second switching frame 20; at the same time, the pipe cutting mechanism 30 switches from the second preset position to the first preset position, thus repeating the above steps.

[0047] The first switching frame 10 and the second switching frame 20 reciprocate left and right at different heights, while the pipe cutting mechanism 30 reciprocates vertically, avoiding the vertical movement of the first switching frame 10 or the second switching frame 20. This reduces the complexity of the overall machine design. In the later maintenance process, the single-moving first switching frame 10 and the second switching frame 20 are easy to maintain and repair, and the time that the operator spends under the first switching frame 10 and the second switching frame 20 is shortened, thereby reducing the workload of the operator.

[0048] It should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used above to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "frame" and "layout" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "frame" or "layout" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0049] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A bead cutting device, characterized in that, include: The first switching frame (10) carries a plurality of first material pipes arranged in the same direction; The second switching frame (20) carries a plurality of second material pipes arranged in the same direction, and the first switching frame (10) and the second switching frame (20) are arranged side by side in the first direction; A pipe-cutting mechanism (30) is located in a direction perpendicular to the first direction and is disposed on the same side of the first switching frame (10) and the second switching frame (20). The first switching frame (10) and the second switching frame (20) reciprocate independently in the first direction, or... The first switching frame (10) and the second switching frame (20) reciprocate as a whole in the first direction so that the first switching frame (10) and the second switching frame (20) can be respectively set to correspond with the tube cutting mechanism (30), and the tube cutting mechanism (30) cuts the first material tube and the second material tube into tube beads; When the first switching frame (10) and the second switching frame (20) reciprocate independently in the first direction, at least one of the first switching frame (10) and the second switching frame (20) reciprocates in the vertical direction, and the pipe cutting mechanism (30) is fixedly set in a preset position. Alternatively, the height of the first switching frame (10) in the vertical direction is different from the height of the second switching frame (20) in the vertical direction, and the pipe cutting mechanism (30) can reciprocate in the vertical direction.

2. The bead cutting device according to claim 1, characterized in that, The second switching frame (20) reciprocates in the vertical direction, and the height of the second switching frame (20) moving along the first direction in the vertical direction is different from the height of the first switching frame (10) moving along the first direction in the vertical direction. The height of the preset position matches the height of the first switching frame (10).

3. The bead cutting device according to claim 2, characterized in that, The first switching frame (10) switches between the first cutting position and the first avoidance position, and the preset position is set to correspond to the first cutting position; The second switching frame (20) makes periodic movements and has a second cutting position, a second avoidance position, a third avoidance position and a fourth avoidance position. The second cutting position is the same as the first cutting position, the second avoidance position is the same as the first avoidance position, the third avoidance position coincides with the projection of the second avoidance position on the horizontal projection plane, and the fourth avoidance position coincides with the projection of the second cutting position on the horizontal projection plane.

4. The bead cutting device according to claim 3, characterized in that, It also includes a first drive mechanism (51) and a second drive mechanism (52). The first drive mechanism (51) includes a first lead screw and a first slider sleeved on the first lead screw. The first lead screw is arranged along the first direction, and the first slider is connected to the first switching frame (10). The second drive mechanism (52) includes a second lead screw (521) and a second slider (522) sleeved on the second lead screw (521). The second lead screw (521) is arranged along a first direction. The second slider (522) is provided with a vertical telescopic member (523). The movable end of the vertical telescopic member (523) is connected to the second switching frame (20).

5. The bead cutting device according to claim 3, characterized in that, It also includes a material box mechanism (40), which is located in a direction perpendicular to the first direction and is disposed on the other side of the first switching frame (10) and the second switching frame (20). The material box mechanism (40) is disposed corresponding to the first avoidance position.

6. The bead cutting device according to claim 3, characterized in that, It also includes a material pulling head mechanism, which is located in a direction perpendicular to the first direction and is disposed on the other side of the first switching frame (10) and the second switching frame (20). The material pulling head mechanism is disposed corresponding to the first avoidance position.

7. The bead cutting device according to claim 1, characterized in that, The pipe cutting mechanism (30) switches between a first preset position and a second preset position. The height of the first preset position matches the height of the first switching frame (10) in the vertical direction, and the height of the second preset position matches the height of the second switching frame (20) in the vertical direction.

8. The bead cutting device according to claim 7, characterized in that, The first switching frame (10) switches between the first cutting position and the first avoidance position, and the first preset position is set to correspond to the first cutting position; The second switching frame (20) switches between the third cutting position and the fifth avoidance position, and the second preset position is set to correspond to the third cutting position; The first cutting position and the third cutting position are vertically opposite each other, and the first avoidance position and the fifth avoidance position are vertically opposite each other.

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