Double-bead or multi-bead conveying mechanism capable of conveniently switching beads and bead switching method

Abstract

The invention discloses a double-bead or multi-bead conveying mechanism capable of conveniently switching beads and a bead switching method, when a switching block switches a corresponding hole site, a first driving structure enables other hole sites in the switching block to slide to a vacant station of a bead feeding structure or a supporting table top, the first driving structure drives a bead feeding clamping plate to advance or retreat, and the bead feeding clamping plate is driven by a second driving structure to move forwards or backwards; when the hole site of the switching block moves between the first supporting surface and the supporting table top or when the hole site of the switching block moves between the second supporting surface and the supporting table top, the hole site of the switching block always moves from the high surface to the low surface, so that the beads in the hole site of the switching block always move from the high surface to the low surface, and the beads in the hole site of the switching block are not prone to falling off. The fluency of the switching block during hole position switching can be effectively improved, and beads can be effectively prevented from being clamped and damaged in the switching process. The mechanism and the method can be suitable for double-bead and multi-bead feeding, and can also be combined with other multi-bead feeding mechanisms.

Description

Technical Field

[0001] The invention relates to a double-bead or multi-bead conveying mechanism capable of conveniently switching beads and a method for switching beads. Background Art

[0002] In order to increase the color change of beads, the bead conveying mechanism is usually equipped with double beads or multiple beads. The double bead or multiple bead conveying mechanism is equipped with a switch block that can switch beads. The switch block is provided with two or more groups of bead holes. The hole positions of different beads can be switched by rotating the switch block, and the required bead hole position is switched from the idle position to the bead receiving position on the bead clamp, so that the clamp of the bead clamp can receive the beads from the bead receiving position and deliver the beads. When the required bead hole position is switched to the bead receiving position, the beads previously located at the hole position of the bead receiving position need to be switched to the idle position, which is usually set on one side of the bead feeding clamp, and the idle position is provided with a support table that is roughly flush with the bead feeding clamp.

[0003] When the switch block switches beads, the switch block will drive the beads in the holes to reciprocate across the support surface above the bead plate and the idle position. In actual use, due to product processing errors, it is impossible to ensure that the mass-produced bead feeding clamps are completely flush with the support surface at the idle position. There must be a step difference between the bead feeding clamp and the support surface at the idle position. Therefore, when the switch block drives the beads in the holes on it to reciprocate on the bead feeding clamp, sliding from the lower position of the board plane to the higher position of the board plane, it is easy to get stuck on the beads, or even get stuck or damaged, which increases the difficulty of the switch block switching the beads in the corresponding holes. Summary of the invention

[0004] The present invention aims to solve the problem that the existing double-bead or multi-bead conveying mechanism cannot switch smoothly when switching beads, and the beads are easily stuck or scratched during the switching process. A double-bead or multi-bead conveying mechanism that can easily switch beads and a method for switching beads are provided.

[0005] The technical solution of the present invention to solve the existing problems is: a double-bead or multi-bead conveying mechanism that can facilitate the switching of beads, including a bead conveying structure that can convey beads, the bead conveying structure is located on the movement path of the bead conveying splint and is provided with a bead receiving station and an empty station, the bead conveying structure is located on one side of the bead receiving station and is provided with an empty support table, the bead conveying structure is provided with a first driving structure for driving the bead conveying splint to reciprocate and convey beads, as an improvement, the bead conveying structure is provided with a switching block, the switching block is located above the bead conveying splint and is provided with at least two holes for accommodating beads, the switching block is provided with a second driving structure for driving the switching block to switch any corresponding hole to enter or leave the bead receiving station; the bead conveying splint is provided with a plurality of holes for accommodating beads, and the plurality of holes for accommodating beads are ... A first supporting surface and a second supporting surface are provided, and a step transition surface is provided between the first supporting surface and the second supporting surface, and the heights of the first supporting surface, the supporting table surface and the second supporting surface are successively reduced or increased; the switching block can be relatively rotated or relatively slidably arranged on the bottom plate of the bead feeding structure to switch any corresponding hole position to enter the bead receiving station; or switch any corresponding hole to leave the bead receiving station and enter the supporting table surface or the vacant station accordingly; when the switching block switches the corresponding hole position, the first driving structure drives the bead feeding clamp to move, so that when the hole position of the switching block moves between the first supporting surface and the supporting table surface, or when the hole position of the switching block moves between the second supporting surface and the supporting table surface, it always moves from the high-height surface to the low-height surface.

[0006] As a further improvement, the height difference between the first supporting surface, the supporting table surface, and the second supporting surface is 0.01mm-0.15mm, which are successively reduced or increased in height.

[0007] As a further improvement, the switching block is rotatably arranged on the bottom plate of the bead feeding structure.

[0008] As a further improvement, the second driving structure includes a driver, a slider assembly arranged on the bead feeding structure, a sliding assembly arranged on the bottom plate of the bead feeding structure, a transmission arm connecting the slider assembly and the sliding assembly, and a convex shaft and a strip guide hole that can drive the switching block to switch the hole position are provided between the sliding assembly and the switching block.

[0009] As a further improvement, the heights of the first supporting surface, the supporting table surface, and the second supporting surface are increased sequentially.

[0010] As a further improvement, the sliding assembly includes a guide block slidably arranged on the bottom plate, and a guide groove and / or a limit groove arranged on the bottom plate and cooperating with the guide block.

[0011] As a further improvement, the sliding assembly also includes a switching plate arranged at the bottom of the bead feeding clamp at the bead receiving station, and the switching plate is provided with a stepped support surface corresponding to the switch block hole positions one by one, and the stepped support surface rises sequentially from front to back.

[0012] As a further improvement, the first supporting surface and the second supporting surface are arranged on the bead passing plate in the middle of the bead feeding clamp, and the two sides of the bead feeding clamp are at least located on the corresponding sides of the support table lower than the upper surface of the bead passing plate, and a support plate is provided on the bottom plate located at the support table, and the upper end surface of the support plate constitutes the support table, and the support plate is provided with an extension plate covering the side surface of the corresponding side bead feeding clamp, and the support table cooperates with the first and second supporting surfaces of the bead passing plate through the extension plate.

[0013] As a further improvement, the switching block is provided with two holes, and the holes of the switching block are provided with an open slot on one side.

[0014] As a further improvement, the bead passing plate is protruding from the clamping arm of the bead feeding clamping plate, and a guide surface inclined toward the clamping arm is provided at the front end of the first supporting surface.

[0015] A method for switching beads of a conveying mechanism using any of the above schemes or any combination of the schemes, as an improvement, a structure drives a switching block to slide or rotate, and according to the needs of embroidery beads, drives the corresponding hole position on the switching block to enter the bead receiving station of the bead feeding structure, and a second driving structure causes other hole positions on the switching block to slide to the vacant station of the bead feeding structure or on the support table. When the switching block switches the hole position, the first driving structure drives the bead feeding clamp forward or backward, so that when the hole position of the switching block moves between the first support surface and the support table surface, or when the hole position of the switching block moves between the second support surface and the support table surface, it always moves from a high-height surface to a low-height surface.

[0016] As a further improvement, the heights of the first supporting surface, the supporting table surface, and the second supporting surface are increased sequentially; the second driving structure drives the switching block to slide or rotate, and drives the corresponding hole position on the switching block to enter the bead receiving station of the bead delivering structure from the supporting table surface, and the first driving structure drives the bead delivering clamp plate to retreat, so that the first supporting surface is located at the bead receiving station; the second driving structure drives the switching block to slide or rotate, and drives the corresponding hole position on the switching block to enter the bead receiving station of the bead delivering structure from the vacant station, and the first driving structure drives the bead delivering clamp plate to move forward, so that the second supporting surface is located at the bead receiving station.

[0017] As a further improvement, the second driving structure drives the switching block to rotate and switch the hole position.

[0018] As a further improvement, the second driving structure includes a driver, a slider assembly arranged on the bead feeding structure, a sliding assembly arranged on the bottom plate of the bead feeding structure, a transmission arm connecting the slider assembly and the sliding assembly, a convex shaft and a guide hole that can drive the switching block to switch the hole position are provided between the sliding assembly and the switching block, the sliding assembly also includes a switching plate arranged at the bottom of the bead feeding clamp at the bead receiving station, the switching plate is provided with a stepped support surface corresponding to the hole position of the switching block, the stepped support surface rises sequentially from front to back, and when the second driving structure drives the switching block to change the corresponding hole position and enter the bead receiving station, it simultaneously drives a stepped support surface corresponding to the hole position to enter the bead receiving station.

[0019] Compared with the prior art, the mechanism and method of the present invention are provided with a first supporting surface and a second supporting surface in sequence from front to back on the bead feeding splint, and a drop transition surface is provided between the first supporting surface and the second supporting surface, and the heights of the first supporting surface, the supporting table surface and the second supporting surface are successively reduced or increased; a switching block can be relatively rotated or relatively slidably arranged on the bottom plate of the bead feeding structure to switch any corresponding hole position to enter the bead receiving station; or switch any corresponding hole out of the bead receiving station and correspondingly enter the supporting table surface or an empty station; its beneficial effect is that when the switching block switches the corresponding hole position, the first A driving structure causes other hole positions on the switching block to slide to an empty workstation of the bead feeding structure or to a supporting table surface, and the first driving structure drives the bead feeding clamp plate forward or backward, so that when the hole positions of the switching block move between the first supporting surface and the supporting table surface, or when the hole positions of the switching block move between the second supporting surface and the supporting table surface, they always move from a high-height surface to a low-height surface. In this way, the beads in the holes of the switching block always move from a high-height surface to a low-height surface, which can effectively increase the smoothness of the switching block when switching holes, and can effectively avoid beads getting stuck or injured during the switching process.

[0020] The mechanism and method of the present invention can be applied to double-bead and multi-bead delivery, and can also be combined with other multi-bead delivery mechanisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a schematic diagram of the decomposed switching block of the present invention.

[0023] Figure 3 yes Figure 2 Schematic diagram of the structure at a.

[0024] Figure 4 It is a schematic diagram of the present invention at an upward tilted viewing angle.

[0025] Figure 5 It is a schematic diagram of the switching block of the present invention being separated from the sliding assembly.

[0026] Figure 6 yes Figure 4 Enlarged schematic diagram of point b.

[0027] Figure 7 yes Figure 5 Enlarged schematic diagram at c.

[0028] Figure 8 Schematic diagram of the present invention when looking up at an inclined viewing angle

[0029] Fig. 9 yes Figure 8 An enlarged schematic diagram of point d.

[0030] Fig.10 yes Fig. 9 Schematic diagram after removing the bottom plate.

[0031] Fig.11 This is a schematic diagram of bead A located at the bead receiving station.

[0032] Fig.12 It is a schematic diagram of transferring bead A located at a bead receiving station to a supporting table, and transferring bead B from an empty station to the bead receiving station.

[0033] Fig.13 This is a schematic diagram of bead B located at the bead receiving station.

[0034] Bead feeding clamp 1, clamping arm 10, first supporting surface 11, second supporting surface 12, bottom plate 13, guide groove 14, bead passing plate 15, inclined guide surface 16, supporting table 2, supporting plate 21, extension plate 22, first driving structure 3, switching block 4, hole position 41, strip guide hole 42, opening groove 43, second driving structure 5, slider assembly 51, transmission arm 52, sliding assembly 6, convex shaft 61, guide block 62, switching plate 63, stepped supporting surface 64. DETAILED DESCRIPTION

[0035] See also Figure 1-13, a double-bead or multi-bead conveying mechanism that can easily switch beads, including a bead conveying structure that can convey beads, the bead conveying structure is located on the movement path of the bead conveying clamp 1 and is provided with a bead receiving station and an empty station. The bead conveying structure is located on one side of the bead receiving station and is provided with an empty support table 2, the bead conveying structure is provided with a first driving structure 3 that drives the bead conveying clamp 1 to reciprocate and convey beads, and the bead conveying structure is provided with a switching block 4, the switching block 4 is located above the bead conveying clamp 1 and is provided with at least two holes 41 for accommodating beads, and the holes 41 are usually used for positioning and guiding bead strings. The switching block 4 is provided with a second driving structure 5 that drives the switching block 4 to switch any corresponding hole 41 to enter or leave the bead receiving station; the second driving structure 5 is used to drive the corresponding hole 41 on the switching block 4 to enter the bead receiving station, or simultaneously move a corresponding hole 41 originally located at the bead receiving station out of the bead receiving station. The bead feeding splint 1 is provided with a first supporting surface 11 and a second supporting surface 12 from front to back, and a step transition surface 13 is provided between the first supporting surface 11 and the second supporting surface 12, and the heights of the first supporting surface 11, the supporting table 2, and the second supporting surface 12 are reduced or increased in sequence; the switching block 4 can be relatively rotated or relatively slidably arranged on the bottom plate 13 of the bead feeding structure to switch any corresponding hole to enter the bead receiving station; or switch any corresponding hole position to leave the bead receiving station, that is, slide out of the bead receiving station from the corresponding hole position, and enter the supporting table 2 or an empty station accordingly; when the switching block 4 switches the corresponding hole position 41, the first driving structure 3 drives the bead feeding splint 1 to move, so that when the hole position 41 of the switching block 4 moves between the first supporting surface 11 and the supporting table 2, or when the hole position 41 of the switching block 4 moves between the second supporting surface 12 and the supporting table 2, it always moves from the high surface to the low surface.

[0036] The bead receiving station is used for the bead delivery splint 1 to receive beads from the bead receiving station. A bead string is usually suspended directly above the bead receiving station. The bead string in the present invention is accommodated, positioned and guided by the hole position; the vacant station is used for the corresponding hole position 41 of the switching block 4 to temporarily avoid the bead receiving station.

[0037] The hole 41 of the switching block 4 is provided with an opening slot 43 on one side, and the opening slot 43 can be used to observe the status of beads and clear the beads.

[0038] The basic structures of the bead feeding splint 1 and the first driving structure 3 of the bead feeding structure can completely adopt the existing technical structures.

[0039] The height difference among the first supporting surface 11, the supporting table surface 2, and the second supporting surface 12 is 0.01 mm to 0.15 mm, and the preferred height difference in this embodiment is 0.05 mm.

[0040] For ease of implementation, in this embodiment, as a preferred embodiment, the switching block 4 is rotatably disposed on the bottom plate 13 of the bead feeding structure.

[0041] The second driving structure 5 includes a driver (not shown), a slider assembly 51 disposed on the bead feeding structure, a sliding assembly 6 disposed on the bottom plate 13 of the bead feeding structure, a transmission arm 52 connecting the slider assembly 51 and the sliding assembly 6, and a convex shaft 61 and a strip guide hole 42 that can drive the switching block 4 to switch the hole position 41 are provided between the sliding assembly 6 and the switching block 4. Preferably, the strip guide hole 42 is disposed on the switching block 4, and the convex shaft 61 is disposed on the sliding assembly 6. The sliding assembly 6 of the second driving structure 5 is driven to slide by the driver through the slider assembly 51, and the guide shaft of the sliding assembly 6 cooperates with the strip guide hole 42 on the switching block 4 through the convex shaft 61 to drive the switching block to rotate or slide. In this embodiment, the switching block 4 is preferably arranged on the bottom plate 13 by shaft rotation, so that the convex shaft 61 that slides with the sliding assembly 6 cooperates with the strip guide hole 42 to drive the switching block 4 to rotate, thereby switching the hole position 41 on the switching block 4.

[0042] The driver of the second driving structure 5 can be an existing technical structure such as a motor, a pneumatic rod, a hydraulic rod, etc., and combined with a necessary mechanical conversion structure, the driver's action is converted into the sliding action required by the slider assembly 51, and then the sliding action is transmitted to the sliding assembly 6 through the transmission arm 52.

[0043] In order to ensure the stability of the sliding track of the sliding assembly 6, the sliding assembly 6 further includes a guide block 62 slidably disposed on the bottom plate 13, a guide groove 14 or / and a limit groove disposed on the bottom plate 13 and cooperating with the guide block 62, and the guide groove 14 or / and the limit groove can be combined into one groove. The cooperation of the guide block 62 and the guide groove or / and the limit groove can optimize the sliding stroke and sliding direction of the sliding assembly 6.

[0044] As an option of this implementation case, the heights of the first supporting surface 11, the supporting table surface 2, and the second supporting surface 12 are increased in sequence.

[0045] The sliding assembly 6 also includes a switching plate 63 disposed at the bottom of the bead feeding clamp 1 at the bead receiving station, and the switching plate 63 is provided with a stepped support surface 64 corresponding to the hole position 41 of the switching block 4, and the stepped support surface is raised from front to back. By providing the corresponding different stepped support surfaces 64 on the switching plate 63 to form a bottom plate for supporting beads at the bead receiving station, it can be used to accommodate beads of different lengths, and can realize the conveying of beads of different lengths.

[0046] The first support surface 11 and the second support surface 12 are arranged on the bead passing plate 15 in the middle of the bead feeding clamp plate 1. The two sides of the bead feeding clamp plate 1 are at least located on the corresponding side of the support table 2 and are lower than the upper plate surface of the bead passing plate 15. The bottom plate 13 is provided with a support plate 21 located at the support table 2. The upper end surface of the support plate 21 constitutes the support table 2. The support plate 21 is provided with an extension plate 22 covering the side of the corresponding side bead feeding clamp plate 1. The support table 2 is matched with the first and second support surfaces of the bead passing plate 15 through the extension plate. The structure of the support plate 21 is convenient for production and manufacturing. At the same time, the gap at the matching position with the bead passing plate 15 can be reduced by setting the extension plate 22, so that the switching block 4 can slide and drive the beads in its hole 41 to slide smoothly between the support table 2 and the first support surface 11.

[0047] As an implementation example, the switching block 4 is provided with two holes 41. For ease of description, the hole near the front side is hole A, which delivers A beads; the hole near the rear side is hole B, which delivers B beads.

[0048] The bead passing plate 15 is protruding from the clamping arm 10 of the bead feeding clamping plate 1, and an inclined guide surface 16 toward the clamping arm is provided at the front end of the first supporting surface 11, so that the supporting plate 21 can cooperate with the bead passing plate 15 through the extension plate 22 to cover the gap on the bead feeding clamping plate 1.

[0049] To facilitate understanding of the present application, the present invention also discloses a method for switching beads.

[0050] The present method may use any one of the above schemes or any combination of the conveying mechanisms. The second driving structure 5 drives the switching block 4 to slide or rotate. According to the needs of bead embroidery, the corresponding hole position 41 on the switching block 4 is driven to enter the bead receiving station of the bead feeding structure. The second driving structure 5 causes the other hole positions 41 on the switching block 4 to slide to the vacant station of the bead feeding structure or the support table 2. When the switching block 4 switches the hole position 41, the first driving structure 3 drives the bead feeding splint 1 forward or backward, so that when the hole position 41 of the switching block 4 moves between the first support surface 11 and the support table 2, or when the hole position 41 of the switching block 4 moves between the second support surface 12 and the support table 2, it always moves from a higher surface to a lower surface.

[0051] The heights of the first supporting surface 11, the supporting table surface 2, and the second supporting surface 12 are increased sequentially; the second driving structure 5 drives the switching block 4 to slide or rotate, and drives the corresponding hole position 41 on the switching block 4 to enter the bead receiving position of the bead delivering structure from the supporting table surface 2, and the first driving structure 3 drives the bead delivering splint 1 to retreat, so that the first supporting surface 11 is located at the bead receiving position; the second driving structure 5 drives the switching block 4 to slide or rotate, and drives the corresponding hole position 41 on the switching block 4 to enter the bead receiving position of the bead delivering structure from the vacant position, and the first driving structure 3 drives the bead delivering splint 1 to move forward, so that the second supporting surface 12 is located at the bead receiving position.

[0052] The second driving structure 5 drives the switching block 4 to rotate and switch the hole position 41 .

[0053] For ease of understanding, this implementation example method uses two beads as an example. For more than two beads, refer to the double bead switching method. For specific methods of switching beads, refer to Figure 11-12 , Fig.11 In the figure, bead A is located at the bead receiving station, and bead B is located at the vacant station. When bead B needs to be transported, bead B needs to be switched from the vacant station to the bead receiving station. The second driving structure 5 drives the sliding assembly 6 to slide through the slider assembly 51 and the transmission arm 52. The convex shaft 61 on the sliding assembly 6 drives the switching block 4 to rotate through the strip guide hole 42 on the switching block 4, and the hole position B is switched to the bead receiving station. Fig.12 is the intermediate state, Fig.13 The state where hole B has been switched to the bead receiving station. In this case, the height of the first support surface 11, the support table 2, and the second support surface 12 are increased in sequence as an example; before the second drive structure 5 is required to switch bead B to the bead receiving station or at the latest before bead A contacts the support table 2, the first drive structure 3 drives the bead feeding clamp 1 to slide forward, so that the second support surface 12 of the bead passing plate 15 of the bead feeding clamp 1 is located at the bottom of hole A (i.e., the bead receiving station), and the beads in hole A are raised. As the switching block 4 rotates, hole A gradually slides smoothly from the higher second support surface 12 to the lower support platform 2. The switching block 4 rotates until hole B completely enters the bead receiving station, which can realize the delivery of bead B and complete the switch from bead A to bead B. When bead A needs to be conveyed again, the second driving structure 5 drives the sliding assembly 6 to slide through the slider assembly 51 and the transmission arm 52, and the convex shaft 61 on the sliding assembly 6 drives the switching block 4 to rotate through the strip guide hole 42 on the switching block 4, and switches the A hole position to the bead receiving position. Before the second driving structure 5 is required to switch bead A to the bead receiving position or at the latest before bead A contacts the bead passing plate 15 of the bead feeding clamp 1, the first driving structure 3 drives the bead feeding clamp 1 to slide backward, so that the first supporting surface 11 of the bead feeding clamp bead passing plate 15 is located at the bead receiving position, and the A hole position gradually slides from the higher support platform 2 to the lower first supporting surface 11 as the switching block 4 rotates, until the A hole position completely enters the bead receiving position, so that bead A can be conveyed and the switch from B bead to A bead is completed. At this time, the B hole position is switched to an empty position, such as Fig.11 shown.

[0054] If the heights of the first supporting surface 11, the supporting table surface 2, and the second supporting surface 12 are successively reduced, when switching the working positions of beads A and B, it is necessary to ensure that the first driving structure 3 drives the bead feeding clamp 1 forward or backward, so that the hole position 41 of the switching block 4 always moves from the higher surface to the lower surface when moving between the first supporting surface 11 and the supporting table surface 2, or when moving between the second supporting surface 12 and the supporting table surface 2.

[0055] The second driving structure 5 includes a driver, a slider assembly arranged on the bead feeding structure, a sliding assembly 6 arranged on the bottom plate 13 of the bead feeding structure, a transmission arm 52 connecting the slider assembly 51 and the sliding assembly 6, a convex shaft 61 and a guide hole 42 that can drive the switching block 4 to switch the hole position 41 are arranged between the sliding assembly 6 and the switching block 4, and the sliding assembly also includes a switching plate 63 arranged at the bottom of the bead feeding clamp 1 at the bead receiving station, and the switching plate is provided with a stepped support surface 64 corresponding to the hole position 41 of the switching block 4, and the stepped support surface 64 rises from front to back. When the second driving structure 5 drives the switching block 4 to change the corresponding hole position 41 and enter the bead receiving station, it also drives a stepped support surface corresponding to the hole position 41 to enter the bead receiving station. When switching between A and B beads, the switching plate 63 sliding with the sliding assembly 6 slides with the sliding assembly 6, and the stepped support surface 64 on the switching plate 63 also corresponds to the corresponding hole position. Since the height of the stepped support surface is different, it can be used to transport beads of different heights.

[0056] The directional words of front, back, left, right, up and down in the present invention refer to the direction in which the bead feeding splint 1 moves forward to feed beads when the bead feeding structure is feeding beads normally, and the direction in which it moves back and forth is back. The directional words of left, right, up and down refer to the left, right, up and down when standing right in front of the bead feeding structure.

Claims

1. A double-bead or multi-bead conveying mechanism that can easily switch beads, comprising a bead conveying structure that can convey beads, the bead conveying structure is located on the movement path of the bead conveying clamping plate and is provided with a bead receiving station and an empty station, the bead conveying structure is located on one side of the bead receiving station and is provided with an empty support table, the bead conveying structure is provided with a first driving structure that drives the bead conveying clamping plate to reciprocate and convey beads, characterized in that: The bead feeding structure is provided with a switching block, and the switching block is located above the bead feeding clamp and is provided with at least two holes for accommodating beads, and the switching block is provided with a second driving structure for driving the switching block to switch any corresponding hole position to enter or leave the bead receiving station; the bead feeding clamp is provided with a first supporting surface and a second supporting surface from front to back, and a step transition surface is provided between the first supporting surface and the second supporting surface, and the heights of the first supporting surface, the supporting table surface and the second supporting surface are reduced or increased in sequence; the switching block can be relatively rotated or relatively slidably arranged on the bottom plate of the bead feeding structure to switch any corresponding hole position to enter the bead receiving station; or switch any corresponding hole to leave the bead receiving station and enter the supporting table surface or an empty station accordingly; when the cutting slide switches the corresponding hole position, the first driving structure drives the bead feeding clamp to move, so that when the hole position of the cutting slide moves between the first supporting surface and the supporting table surface, or when the hole position of the cutting slide moves between the second supporting surface and the supporting table surface, it always moves from the high-height surface to the low-height surface.

2. The double-bead or multi-bead conveying mechanism capable of conveniently switching beads as claimed in claim 1, characterized in that: The switching block is rotatably arranged on the bottom plate of the bead feeding structure.

3. The double-bead or multi-bead conveying mechanism capable of conveniently switching beads as claimed in claim 1, characterized in that: The second driving structure includes a driver, a slider assembly arranged on the bead feeding structure, a sliding assembly arranged on the bottom plate of the bead feeding structure, a transmission arm connecting the slider assembly and the sliding assembly, and a convex shaft and a strip guide hole that can drive the slider to switch the hole position are provided between the sliding assembly and the switching block.

4. The double-bead or multi-bead conveying mechanism capable of conveniently switching beads as claimed in claim 1, characterized in that: The heights of the first supporting surface, the supporting table surface, and the second supporting surface increase sequentially.

5. The double-bead or multi-bead conveying mechanism capable of conveniently switching beads as claimed in claim 3, characterized in that: The sliding assembly comprises a guide block slidably arranged on the bottom plate, and a guide groove and / or a limit groove arranged on the bottom plate and cooperating with the guide block.

6. The double-bead or multi-bead conveying mechanism capable of conveniently switching beads as claimed in claim 3 or 5, characterized in that: The sliding assembly also includes a switching plate arranged at the bottom of the bead feeding clamp at the bead receiving station, and the switching plate is provided with a stepped support surface corresponding to the switch block hole positions one by one, and the stepped support surface rises sequentially from front to back.

7. The double-bead or multi-bead conveying mechanism capable of conveniently switching beads as claimed in claim 1, characterized in that: The first supporting surface and the second supporting surface are arranged on the bead passing plate in the middle of the bead feeding clamp, and the two sides of the bead feeding clamp are at least located on the corresponding sides of the support table lower than the upper surface of the bead passing plate, and a support plate is provided on the bottom plate located at the support table, and the upper end surface of the support plate constitutes the support table, and the support plate is provided with an extension plate covering the side surface of the corresponding side bead feeding clamp, and the support table cooperates with the first and second supporting surfaces of the bead passing plate through the extension plate.

8. The double-bead or multi-bead conveying mechanism capable of conveniently switching beads as claimed in claim 1, characterized in that: The switching block is provided with two holes.

9. The double-bead or multi-bead conveying mechanism capable of conveniently switching beads as claimed in claim 7, characterized in that: The bead passing plate is protruding from the clamping arm of the bead feeding clamping plate, and a guide surface inclined toward the clamping arm is provided at the front end of the first supporting surface.

10. The double-bead or multi-bead conveying mechanism capable of conveniently switching beads as claimed in claim 1, characterized in that: The height difference between the first supporting surface, the supporting table surface and the second supporting surface is 0.01mm-0.15mm as the height decreases or increases in sequence.

11. The double-bead or multi-bead conveying mechanism capable of conveniently switching beads as claimed in claim 1, characterized in that: The hole of the switching block is located on one side and is provided with an open slot.

12. A method for switching beads using the conveying mechanism according to any one of claims 1 to 11, characterized in that: The second driving structure drives the switching block to slide or rotate, and according to the needs of bead embroidery, drives the corresponding hole position on the switching block to enter the bead receiving station of the bead feeding structure, and the second driving structure makes the other hole positions on the switching block slide to the vacant station of the bead feeding structure or on the supporting table. When the switching block switches the hole position, the first driving structure drives the bead feeding splint forward or backward, so that when the hole position of the cutting slide block moves between the first supporting surface and the supporting table surface, or when the hole position of the cutting slide block moves between the second supporting surface and the supporting table surface, it always moves from the high-height surface to the low-height surface.

13. The method for switching beads according to claim 12, characterized in that: The heights of the first supporting surface, the supporting table surface, and the second supporting surface increase sequentially; the second driving structure drives the switching block to slide or rotate, and drives the corresponding hole position on the switching block to enter the bead receiving position of the bead delivering structure from the supporting table surface, and the first driving structure drives the bead delivering splint to retreat, so that the first supporting surface is located at the bead receiving position; the second driving structure drives the switching block to slide or rotate, and drives the corresponding hole position on the switching block to enter the bead receiving position of the bead delivering structure from the vacant position, and the first driving structure drives the bead delivering splint to move forward, so that the second supporting surface is located at the bead receiving position.

14. The method for switching beads according to claim 12, characterized in that: The second driving structure drives the switching block to rotate and switch the hole position.

15. The method for switching beads according to claim 12, characterized in that: The second driving structure includes a driver, a slider assembly arranged on the bead feeding structure, a sliding assembly arranged on the bottom plate of the bead feeding structure, a transmission arm connecting the slider assembly and the sliding assembly, a convex shaft and a guide hole that can drive the slider to switch the hole position are provided between the sliding assembly and the switching block, the sliding assembly also includes a switching plate arranged at the bottom of the bead feeding splint at the bead receiving station, the switching plate is provided with a stepped supporting surface corresponding to the hole position of the switching block, the stepped supporting surface rises sequentially from front to back, and when the second driving structure drives the switching block to change the corresponding hole position and enter the bead receiving station, it simultaneously drives a stepped supporting surface corresponding to the hole position to enter the bead receiving station.

Images