A pearl feeding mechanism capable of left and right translation
By introducing a transverse guide block and a limiting guide mechanism into the bead feeding mechanism of the bead embroidery machine, the problem of positional changes caused by the rotation of the guide block is solved, the accuracy and stability of the bead feeding process are achieved, and the continuous feeding of embroidered beads is ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAOXING KEQIAO DISTRICT SANHUA AUTOMATION CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-06-23
Smart Images
Figure CN224395214U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bead embroidery machine technology, and in particular to a bead feeding mechanism that allows for left-right translational bead changing. Background Technology
[0002] To meet the requirements of actual production, a bead feeding mechanism for embroidery machines has emerged that can switch and feed different colors or specifications of embroidery beads without stopping the machine. For example, Chinese patent CN222524881U discloses a bead feeding mechanism capable of feeding multiple types of embroidery beads, including a base and a bead feeding trolley. The bead feeding trolley is equipped with an elastic bead feeding clamp that can move forward to the bead position or backward to the bead receiving position under the drive of the bead feeding trolley. The front end of the elastic bead feeding clamp is equipped with jaws that can close or open under the combined action of friction between the bead feeding trolley, the elastic bead feeding clamp and the base. The bead feeding mechanism capable of feeding multiple types of embroidery beads also includes a bead guide block. The bead guide block is located above the elastic bead feeding clamp and hinged to the base. The bead guide block is equipped with a front bead guide hole and a rear bead guide hole. The base is equipped with a drive mechanism that drives the bead guide block to rotate around the hinge point to switch the positions of the front bead guide hole and the rear bead guide hole. When the elastic bead feeding clamp moves backward to the bead receiving position, the jaws open and align with the front bead guide hole or the rear bead guide hole. A bead baffle is provided between the bead guide block and the elastic bead feeding clamp. The bead feeding mechanism has the following defects: the bead guide block is hinged to the base and can rotate around the hinge point under the drive of the drive mechanism. When the elastic bead feeding clamp holds the embroidered bead and feeds it forward, if the embroidered bead interferes with the bead guide block, the bead guide block will rotate around the hinge point due to the force (the force of the embroidered bead), causing the position of the front or rear bead guide hole to change (misalignment), thereby affecting the bead receiving of the elastic bead feeding clamp. Utility Model Content
[0003] This invention addresses the problem in existing bead feeding mechanisms where the guide bead block is hinged to the base and rotates around the hinge point under the drive of the drive mechanism. When the elastic bead feeding clamp holds the embroidered bead and feeds it forward, if the embroidered bead interferes with the guide bead block, the guide bead block will rotate around the hinge point due to the force exerted by the embroidered bead, causing a change (dislocation) in the position of the front or rear guide bead hole, thus affecting the bead clamping accuracy of the elastic bead feeding clamp. This invention provides a cleverly designed bead feeding mechanism that achieves bead changing by lateral translation of the guide bead block, thereby improving the accuracy of bead receiving.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: A bead-feeding mechanism for left-right translational bead changing includes a base, a bead-feeding trolley, and an elastic bead-feeding clamp, as well as a transverse bead-guide block, a transverse drive block, and a forward-backward moving mechanism. The transverse bead-guide block is located above the elastic bead-feeding clamp, and has a left bead-guide hole and a right bead-guide hole. A bead-blocking plate is provided between the transverse bead-guide block and the base. The transverse bead-guide block and the transverse drive block are connected by a limiting guide mechanism, and the bottom surface of the transverse drive block has a limiting drive groove. The forward-backward moving mechanism has a limiting drive component adapted to the limiting drive groove. The forward-backward moving mechanism drives the limiting drive component to slide along the limiting drive groove. Under the action of the limiting drive component, the transverse drive block translates left and right to realize the interchange of the left and right bead-guide holes. When the limiting drive component is located at the front or rear end of the limiting drive groove, the limiting drive component can limit the transverse drive block left and right. The base, bead-feeding trolley, and elastic bead-feeding clamp in this utility model are all conventional structures in the field, and are the same as those in patent CN222524881U. Therefore, the above structures will not be described again in this utility model. The limiting and guiding mechanism in this utility model serves to guide and limit the transverse bead block and the transverse driving block, ensuring the positional accuracy of the transverse bead block. The limiting driving component in this utility model slides along the limiting driving groove under the action of the forward and backward moving mechanism. During the sliding process, the limiting driving component pushes and pulls the transverse driving block to make the transverse bead block move horizontally left and right. When the limiting driving component is located at the front end or rear end of the limiting driving groove, the left and right translational switching of the left and right bead holes is completed. At the same time, the limiting driving component limits the transverse driving block left and right, ensuring that the transverse bead block does not displace in the left and right horizontal direction. In this utility model, the front and rear limits of the limiting guide mechanism and the left and right limits of the transverse drive block are used to simultaneously limit the transverse guide bead block in the front, rear, left, and right directions. During the bead feeding process, if the embroidered bead interferes with the transverse guide bead block, the position of the transverse guide bead block will not move, and the embroidered bead will be pushed out of the transverse guide bead block due to force deformation, without getting stuck. The limiting guide mechanism in this utility model can be different types of linear movement modules, including guide rail slider modules, etc. The front and rear displacement mechanism is used to drive the limiting drive to move back and forth. The front and rear displacement mechanism is a conventional mechanism in this field and can be the motor, linear guide rail slider module, and shift fork in patent CN222524881U. When the elastic bead feeding clamp retracts to the bead receiving position, the left or right guide bead hole is aligned with the open jaws in the elastic bead feeding clamp so that the elastic bead feeding clamp can receive the bead.
[0005] Preferably, the limiting drive groove includes a driving inclined groove section and a left linear limiting groove and a right linear limiting groove disposed at both ends of the driving inclined groove section. The left linear limiting groove and the right linear limiting groove extend along the outer sides of both ends of the driving inclined groove section and are arranged in parallel and opposite directions. The limiting drive member is a limiting drive rod. When the limiting drive member slides into the left linear limiting groove and the right linear limiting groove, the transverse drive block cannot move in the left and right horizontal directions.
[0006] Preferably, the drive inclined groove section has a circular arc transition with the left straight limiting groove and the right straight limiting groove.
[0007] Preferably, the end faces of the left and right linear limiting grooves are curved surfaces.
[0008] Preferably, the front end of the base is provided with a bead-supporting block groove, and a bead-supporting block is provided in the bead-supporting block groove. The bead-supporting block is located below the elastic bead-feeding clamp and is connected to the front-back moving mechanism. The bead-supporting block is configured with a stepped structure, and the vertical surface of the stepped structure is an arc surface. The higher plane in the stepped structure forms a short bead supporting surface, and the lower plane in the stepped structure forms a long bead supporting surface. The bead-supporting block can move back and forth synchronously with the lateral drive block, and can always support the embroidered bead in the jaws of the elastic bead-feeding clamp when the left or right guide bead hole is changed. The stepped structure allows this invention to be used with embroidered beads of different heights, and the positions of the short bead supporting surface and the long bead supporting surface can be set according to actual needs.
[0009] Preferably, the limiting guide mechanism includes a guide seat and a movable guide rod. The guide seat is disposed on the base, the movable guide rod passes through the guide seat and slides with the guide seat, one end of the movable guide rod is fixed with a connecting block, the other end of the movable guide rod is fixedly connected to a transverse drive block, and the transverse guide bead block is fixed on the front side of the connecting block.
[0010] Preferably, the forward and backward moving mechanism includes a ball-changing connecting rod, a ball-changing slider, a linear guide slider module, and a driving device. The bottom front end of the base has an open slide groove that communicates with a ball-supporting block slide groove. The ball-changing slider is disposed within the open slide groove, and its two ends are fixedly connected to the ball-supporting block and the ball-changing connecting rod, respectively. The ball-changing connecting rod is fixedly connected to the slider in the linear guide slider module. The slider in the linear guide slider module is drively connected to the driving device, which drives the slider in the linear guide slider module to move forward and backward along the guide rail in the linear guide slider module. Other linear motion mechanisms can be used instead of the linear guide slider module.
[0011] Preferably, the lower openings of the left and right guide bead holes are provided with forward-facing clearance notches. These clearance notches are used to avoid the embroidery beads, reducing interference between the embroidery beads and the transverse guide bead block during delivery.
[0012] Therefore, this utility model has the following beneficial effects: by using the front and rear limiting of the limiting guide mechanism and the left and right limiting of the transverse driving block by the limiting drive component, the transverse guide block can be limited simultaneously in the front, rear, left and right directions. During the bead feeding process, even if the embroidery bead interferes with the transverse guide block, the position of the transverse guide block can be guaranteed not to move, ensuring the accuracy of the bead receiving of the elastic bead feeding clamp. At the same time, the embroidery bead will also be pushed out of the transverse guide block due to the deformation of the force, and will not get stuck. Attached Figure Description
[0013] Figure 1 This is a perspective view of the present invention.
[0014] Figure 2 yes Figure 1 A 3D view of part A.
[0015] Figure 3 yes Figure 2 The exploded diagram.
[0016] Figure 4 This is a schematic diagram showing the connection between the base, the ball-changing connecting rod, and the ball-changing slider.
[0017] Figure 5 yes Figure 4 A stereoscopic view from another perspective.
[0018] Figure 6 This is a schematic diagram showing the cooperation between the transverse drive block and the limit drive component.
[0019] Figure 7 yes Figure 6 A bottom view.
[0020] In the diagram: 1. Base, 2. Bead feeding trolley, 3. Elastic bead feeding clamp, 4. Lateral bead guide block, 5. Lateral drive block, 6. Forward and backward movement mechanism, 7. Left bead guide hole, 8. Right bead guide hole, 9. Bead baffle plate, 10. Limiting guide mechanism, 11. Limiting drive groove, 12. Limiting drive component, 13. Drive inclined groove section, 14. Left linear limiting groove, 15. Right linear limiting groove, 16. Bead support block groove, 17. Bead support block, 18. Short bead support surface, 19. Long bead support surface, 20. Guide seat, 21. Moving guide rod, 22. Connecting block, 23. Bead changing connecting rod, 24. Bead changing slider, 25. Linear guide rail slider module, 26. Drive device, 27. Opening groove, 28. Clearance notch. Detailed Implementation
[0021] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.
[0022] like Figure 1 , Figure 2The illustrated bead-changing mechanism includes a base 1, a bead-feeding trolley 2, and an elastic bead-feeding clamp 3. It also includes a transverse bead-guide block 4, a transverse drive block 5, and a forward / backward moving mechanism 6. The transverse bead-guide block is located above the elastic bead-feeding clamp. The transverse bead-guide block has a left bead-guide hole 7 and a right bead-guide hole 8. The lower openings of the left and right bead-guide holes have forward-facing clearance notches 28 (e.g., ...). Figure 3 (As shown); a baffle plate 9 is provided between the transverse guide bead block and the base; the transverse guide bead block and the transverse drive block are connected by a limiting guide mechanism 10, which includes a guide seat 20 and a moving guide rod 21. The guide seat is set on the base, and the moving guide rod passes through the guide seat and slides with the guide seat. One end of the moving guide rod is fixed with a connecting block 22, and the other end of the moving guide rod is fixedly connected to the transverse drive block. The transverse guide bead block is fixed to the front side of the connecting block; a limiting drive groove 11 is provided on the bottom surface of the transverse drive block (as shown). Figure 6 , Figure 7 As shown), the limiting drive groove includes a driving inclined groove section 13 and a left linear limiting groove 14 and a right linear limiting groove 15 disposed at both ends of the driving inclined groove section. The left linear limiting groove and the right linear limiting groove extend along the outer sides of both ends of the driving inclined groove section and are arranged in parallel and opposite directions. The driving inclined groove section and the left linear limiting groove and the right linear limiting groove are connected by an arc. The end faces of the left linear limiting groove and the right linear limiting groove are set as arc surfaces. The front end of the base is provided with a ball support block sliding groove 16 (as shown). Figure 4 , Figure 5 As shown), a ball support block 17 is provided in the ball support block groove. The ball support block is located below the elastic ball feeding clamp. The ball support block is set as a stepped structure. The vertical surface of the stepped structure is an arc surface. The higher plane in the stepped structure forms a short ball support surface 18, and the lower plane in the stepped structure forms a long ball support surface 19. The front and rear moving mechanism includes a ball changing connecting rod 23, a ball changing slider 24, a linear guide rail slider module 25, and a driving device 26. An open groove 27 is provided at the bottom front end of the base. The open groove is connected to the ball support block groove. The ball changing slider is located in the open groove. Both ends of the ball changing slider are fixedly connected to the ball support block and the ball changing connecting rod, respectively. The ball changing connecting rod is connected to the linear guide rail slider. The slider in the block module is fixedly connected, and the slider in the linear guide slider module is connected to the drive device (motor) through transmission. The drive device drives the slider in the linear guide slider module to move back and forth along the guide rail in the linear guide slider module through the shift fork. The ball changing connecting rod is provided with a limiting drive component 12 that is adapted to the limiting drive groove. The limiting drive component is a limiting drive rod. The ball changing connecting rod drives the limiting drive component to slide along the limiting drive groove. Under the action of the limiting drive component, the transverse drive block moves left and right to realize the interchange of the left guide bead hole and the right guide bead hole. When the limiting drive component is located in the left linear limiting groove or the right linear limiting groove, the limiting drive component can limit the transverse drive block to the left and right.
[0023] The working principle of this utility model is as follows: When the limiting drive component is located in the left linear limiting groove, the right guide bead hole is blocked by the bead-blocking plate, and the left guide bead hole is aligned with the long bead support surface. When the elastic bead feeding clamp retracts to the bead receiving position, the left guide bead hole aligns with and connects with the open jaws in the elastic bead feeding clamp. The embroidered bead falls into the jaws and is supported by the long bead support surface. When the elastic bead feeding clamp moves forward, it clamps the embroidered bead and pushes it out of the left guide bead hole for feeding. During the feeding process, the embroidered bead in the left guide bead hole is blocked by the top surface of the elastic bead feeding clamp and kept in the left guide bead hole. The previous steps are repeated to feed the bead continuously. When the bead needs to be changed, the drive device drives the slider in the linear guide rail slider module to slide forward through the shift fork. The slider drives the bead changing connecting rod. The bead-changing slider, limit drive, and bead-supporting block move forward. At the same time, the limit drive drives the transverse drive block to move to the left. When the limit drive is in the right linear limit groove, the left guide bead hole is blocked by the bead-blocking plate, and the right guide bead hole is aligned with the short bead support surface, completing the exchange of the left and right guide bead holes. When the elastic bead-feeding clamp retracts to the bead-receiving position, the right guide bead hole is aligned with and connected to the open jaws in the elastic bead-feeding clamp. The embroidered bead falls into the jaws and is supported by the short bead support surface. When the elastic bead-feeding clamp moves forward, it clamps the embroidered bead and pushes it out of the right guide bead hole for bead feeding. During the bead feeding process, the embroidered bead in the right guide bead hole is blocked by the top surface of the elastic bead-feeding clamp in the right guide bead hole. The previous steps are repeated to continuously feed the bead.
[0024] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.
Claims
1. A bead feeding mechanism for left and right translation of beads, comprising a base (1), a bead feeding trolley (2) and a resilient bead feeding clamp (3), characterized in that, It also includes a transverse guide bead block (4), a transverse drive block (5), and a forward and backward moving mechanism (6); the transverse guide bead block is located above the elastic bead feeding clamp, and the transverse guide bead block is provided with a left guide bead hole (7) and a right guide bead hole (8), and a bead baffle plate (9) is provided between the transverse guide bead block and the base; the transverse guide bead block and the transverse drive block are connected by a limiting guide mechanism (10), and the bottom surface of the transverse drive block is provided with a limiting drive groove (11); the forward and backward moving mechanism is provided with a limiting drive component (12) that is adapted to the limiting drive groove, and the forward and backward moving mechanism drives the limiting drive component to slide along the limiting drive groove. Under the action of the limiting drive component, the transverse drive block moves left and right to realize the exchange of the left guide bead hole and the right guide bead hole. When the limiting drive component is located at the front end or the rear end of the limiting drive groove, the limiting drive component can limit the transverse drive block to the left and right.
2. The left and right translation bead changing bead feeding mechanism according to claim 1, characterized in that, The limiting drive groove includes a driving inclined groove section (13) and a left straight limiting groove (14) and a right straight limiting groove (15) disposed at both ends of the driving inclined groove section. The left straight limiting groove and the right straight limiting groove extend along the outer sides of both ends of the driving inclined groove section and are arranged in parallel and opposite directions. The limiting drive component is a limiting drive rod.
3. The left and right translation bead changing bead feeding mechanism according to claim 2, characterized in that, The drive inclined groove section transitions with the left and right straight limiting grooves via a circular arc.
4. The left and right translation bead changing bead feeding mechanism according to claim 2, characterized in that, The end faces of the left and right linear limiting grooves are set as arc surfaces.
5. The left and right translation bead changing mechanism of claim 1, wherein, The base has a ball support block groove (16) at the front end, and a ball support block (17) is provided in the ball support block groove. The ball support block is located below the elastic ball feeding clamp. The ball support block is connected to the front and rear moving mechanism. The ball support block is set as a stepped structure. The vertical surface of the stepped structure is set as an arc surface. The higher plane in the stepped structure forms a short ball support surface (18), and the lower plane in the stepped structure forms a long ball support surface (19).
6. The left and right translation bead changing bead feeding mechanism according to claim 1, characterized in that, The limiting guide mechanism includes a guide seat (20) and a moving guide rod (21). The guide seat is set on the base, and the moving guide rod passes through the guide seat and slides with the guide seat. One end of the moving guide rod is fixed with a connecting block (22), and the other end of the moving guide rod is fixedly connected to the transverse drive block. The transverse guide bead block is fixed on the front side of the connecting block.
7. The left and right translation bead changing bead feeding mechanism according to claim 5, wherein, The forward and backward moving mechanism includes a bead-changing connecting rod (23), a bead-changing slider (24), a linear guide rail slider module (25), and a driving device (26). The bottom front end of the base is provided with an open slide groove (27), which is connected to the bead-supporting block slide groove. The bead-changing slider is located in the open slide groove. Both ends of the bead-changing slider are fixedly connected to the bead-supporting block and the bead-changing connecting rod, respectively. The bead-changing connecting rod is fixedly connected to the slider in the linear guide rail slider module. The slider in the linear guide rail slider module is connected to the driving device for transmission. The driving device drives the slider in the linear guide rail slider module to move forward and backward along the guide rail in the linear guide rail slider module.
8. The left and right translation bead changing bead feeding mechanism according to claim 1, characterized in that, The lower openings of the left and right guide bead holes are provided with forward-facing clearance notches (28).