Shearing and clamping integrated mechanism applied to circulating shuttle winding
By designing a shear-clip integrated mechanism for circulating winding shuttles, combining thread-cutting knife, thread-cutting knives, scissor springs and drive units, the problems of complex thread-cutting and unstable thread-cutting in the existing sewing machine winding structure are solved, and efficient and reliable thread-cutting and thread-cutting operations are achieved.
Patent Information
- Application Number
- CN202311231218.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-22
- Publication Date
- 2025-03-25
Smart Images

Figure CN119686046A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of mechanical automation technology, and in particular to a shear-clamp integrated mechanism for circulating shuttle winding. Background Art
[0002] Computerized pattern machines are the most advanced machines used by contemporary handbag factories, shoe factories, luggage factories, garment factories, leather goods factories, and furniture factories. They can realize traditional manual patterns at high speed and high efficiency, and can also achieve the requirements of "multi-level, multi-functional, unified and perfect" that manual patterns cannot achieve. It is an electromechanical product that embodies a variety of high-tech technologies. In view of the research and development and innovation of pattern machines gradually moving towards automation, the fully automatic shuttle change device is one of the essential technologies for automation.
[0003] A Chinese patent with announcement number CN211036364U discloses a sewing machine winder structure, which includes a winding seat and a winding shaft rotatably arranged on the winding seat, the winding seat having a mounting disk, characterized in that the mounting disk has a through hole, the outer end of the winding shaft passes through the through hole and extends to the outside of the side of the mounting disk, and a winding arm, a wire cutting knife and a wire clamping piece are fixed on the side of the mounting disk on one side of the through hole by screws; the outer end of the winding arm extends to one side of the outer end of the winding shaft, the wire clamping piece is arranged along the length direction of the winding arm and the side of the wire clamping piece is close to the side of the mounting disk; the blade of the wire cutting knife faces the winding shaft.
[0004] However, the thread cutting structure and the thread cutting path of the sewing machine winder structure are complicated. The thread end can only maintain the subsequent continuous winding action after being clamped by the thread clamp, which makes its structure complicated. It is also necessary to avoid the position of the scissors affecting the winding and the inability to cut the thread at any angle during winding, which needs to be improved. Summary of the invention
[0005] In view of this, the purpose of the present application is to provide a shear-clamp integrated mechanism for a loop-winding shuttle, so as to achieve the purpose of improving the reliability of thread cutting. The specific scheme is as follows:
[0006] A shearing and clamping integrated mechanism for circulating shuttle winding comprises a shearing and clamping unit with a front end for thread cutting, a rear end of the shearing and clamping unit being connected to a driving unit, and being provided with a fixed thread cutting knife, a movable thread cutting knife, a scissors spring sheet and a scissors fixing screw as a rotating pivot arranged in sequence from the inside to the outside; the driving unit is used to drive the shearing and clamping unit to move back and forth along a linear direction, and drive the movable thread cutting knife to swing with the scissors fixing screw as an axis, and the scissors spring sheet is used to cooperate with the fixed thread cutting knife and the movable thread cutting knife to clamp and fix the thread end.
[0007] Preferably: a spring piece positioning pin is arranged on the outer side of the rear end of the fixed thread trimmer knife, and the movable thread trimmer knife is provided with a waist groove for the spring piece positioning pin to pass through and move, and when the fixed thread trimmer knife and the movable thread trimmer knife are fully opened and fully closed, the spring piece positioning pin is respectively located at both ends of the waist groove.
[0008] Preferably, the spring piece positioning pin is inserted and fixed in the scissors spring piece.
[0009] Preferably: the driving unit comprises a hollow inner wire trimmer driving ring and an outer wire trimmer driving ring respectively located at the front and rear sides, an annular groove is formed between the inner wire trimmer driving ring and the outer wire trimmer driving ring, and is connected to a wire trimmer cylinder for driving the inner wire trimmer driving ring and the outer wire trimmer driving ring to perform linear reciprocating movement; the wire trimmer fixed knife is connected to an L-shaped wire trimmer driving plate, one end of the wire trimmer driving plate is inserted into the annular groove, and the other end passes through the hollow part of the inner wire trimmer driving ring to the front end.
[0010] Preferably: it also includes a winding base plate, and both ends of the winding base plate are symmetrically provided with a wire cutting cylinder, and the output end of the wire cutting cylinder is provided with a cylinder joint, and the cylinder joint is connected to a corresponding end of the wire cutting drive inner ring or the wire cutting drive outer ring.
[0011] Preferably: both ends of the thread trimmer drive inner ring are provided with thread trimmer cylinder connection blocks, the thread trimmer cylinder connection block is L-shaped, and one end is provided with a thread trimmer cylinder axial screw hinged to the cylinder joint.
[0012] Preferably: the other end of the thread trimming cylinder connecting block is connected and fixed to the thread trimming drive inner ring, and is plugged with a thread trimming guide shaft that sequentially passes through the thread trimming cylinder connecting block, the thread trimming drive inner ring and the winding base plate; both ends of the winding base plate are provided with thread trimming cylinder mounting plates that are connected and fixed to the corresponding thread trimming cylinders.
[0013] Preferably: a winding center shaft is inserted into the hollow part of the inner and outer rings of the thread trimmer drive, and the axis of the winding center shaft is used to install the winding shaft and the electromagnet and shuttle shaft sleeve sleeved on the winding shaft; a linear groove is provided on the outer side of the winding center shaft, the shear clamp unit is located in the linear groove, and an opening shear baffle and a closing shear column for matching with the thread trimmer moving knife to drive the thread trimming action are provided in the linear groove; the closing shear column is located on the front side and the opening shear baffle is located on the rear side, and when the shear clamp When the unit makes a forward linear motion relative to the winding center axis, the lower end of the thread trimming movable knife moves to contact the closed shear column, and the front end makes a downward swinging motion with the scissors fixing screw to cooperate with the thread trimming fixed knife to complete the thread trimming action; and when the shear clamp unit makes a backward linear motion relative to the winding center axis, the lower end of the thread trimming movable knife moves to contact the opening shear baffle, and the front end makes an upward swinging motion with the scissors fixing screw to cooperate with the thread trimming fixed knife to complete the opening shearing action.
[0014] Preferably: a driving pressure block is arranged in the linear groove, and the wire trimming driving plate is inserted in the driving pressure block and the winding center shaft.
[0015] Preferably, the winding center shaft is sleeved with a bearing located in the winding base plate.
[0016] It can be seen from the above scheme that the present application provides a shear-clamp integrated mechanism applied to a circulating shuttle, and the shear-clamp integrated mechanism applied to a circulating shuttle has the following beneficial effects:
[0017] 1. Through the coordinated use of the fixed cutting knife, the spring sheet of the scissors and the moving cutting knife, the thread cutting operation is realized while the thread head is clamped, so as to facilitate the subsequent winding. The overall structure is simple, the use is reliable and the applicability is high.
[0018] 2. The shearing and clamping unit is extended from the winding center shaft during the wire cutting operation to complete the wire cutting operation, and is retracted inward to the side of the winding center shaft during the winding operation, thereby effectively avoiding the problem of the shearing and clamping unit affecting the winding operation during the winding operation;
[0019] 3. The opening and closing actions of the shearing cylinder are realized through the linear drive of the shearing cylinder, thereby achieving the effects of simple structure, stable operation and low cost, and significantly improving the applicability of the shear-clamp integrated mechanism applied to the circular shuttle winding;
[0020] 4. By adjusting the installation position of the opening and closing shearing block and the closing shearing column, the extension amount of the thread trimming moving knife and the thread trimming fixed knife can be adjusted and determined, so as to conveniently adjust the initial winding position of the bobbin and facilitate the detection of the bobbin remainder effect;
[0021] 5. The wire cutting drive plate is connected through the annular groove formed between the wire cutting drive inner ring and the wire cutting drive outer ring, so that the shear clamp unit can be kept relatively fixed and can be rotated synchronously with the winding center axis. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.
[0023] Figure 1 It is a schematic diagram of the shearing structure of the shearing and clamping integrated mechanism applied to the circular shuttle winding disclosed in the present application;
[0024] Figure 2 It is a schematic diagram of the partial structure of the shear-clamp integrated mechanism for circulating shuttle winding disclosed in this application.
[0025] Explanation of the accompanying reference numerals: 1. winding center axis; 2. wire trimming drive plate; 3. wire trimming drive outer ring; 4. wire trimming conductor axis; 5. wire trimming cylinder axial screw; 6. cylinder joint; 7. wire trimming cylinder connecting block; 8. wire trimming drive inner ring; 9. winding base plate; 10. wire trimming cylinder; 11. wire trimming cylinder mounting plate; 12. driving pressure block; 13. opening shear baffle; 14. closing shear column; 15. wire trimming fixed knife; 16. scissors spring leaf; 17. wire trimming movable knife; 18. scissors fixing screw; 19. spring leaf positioning pin. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0027] like Figure 1 As shown, a shearing and clamping integrated mechanism used for circulating shuttle winding includes a shearing and clamping unit at the front end for cutting the thread and a driving unit connected to the rear end of the shearing and clamping unit.
[0028] The shearing and clamping unit is used to clamp the wire ends while completing the wire cutting operation, so as to facilitate the orderly development of the subsequent winding action. While driving the shearing and clamping unit to open and close the shearing and clamping actions, the driving unit can prevent the shearing and clamping unit from affecting the subsequent winding.
[0029] The shearing and clamping unit is provided with a fixed thread cutting knife 15, a movable thread cutting knife 17, a scissor spring piece 16 and a scissor fixing screw 18 serving as a rotation pivot, which are arranged in sequence from the inside to the outside.
[0030] Specifically, the driving unit is used to drive the shearing and clamping unit to move back and forth along the linear direction, and drive the thread cutting movable knife 17 to swing with the scissor fixing screw 18 as the axis, and then cooperate with the thread cutting fixed knife 15 to complete the thread cutting operation. At the same time, the scissor spring sheet 16 is used to cooperate with the thread cutting fixed knife 15 and the thread cutting movable knife 17 to clamp and fix the thread end, so that in the subsequent winding operation, no additional clamping mechanism is needed to clamp the thread end, and automatic and efficient operation can be achieved.
[0031] like Figure 1 As shown, a spring piece positioning pin 19 is provided on the outer side of the rear end of the fixed thread trimmer 15. Correspondingly, a waist groove for the spring piece positioning pin 19 to pass through is provided on the movable thread trimmer 17, and when the fixed thread trimmer 15 and the movable thread trimmer 17 are fully opened to realize the opening shearing action and fully closed to realize the closing shearing action, the spring piece positioning pin 19 is respectively located at the two ends of the waist groove. Therefore, the waist groove will play a role in limiting the relative swing arc of the movable thread trimmer 17 and the fixed thread trimmer 15, and by adjusting the overall long diameter of the sleeve groove, the relative swing arc of the movable thread trimmer 17 and the fixed thread trimmer 15 will be effectively adjusted, and the stability of the relative swing motion of the movable thread trimmer 17 and the fixed thread trimmer 15 will be improved.
[0032] It should be mentioned that the spring locating pin 19 is inserted and fixed in the scissor spring piece 16. Therefore, while the scissor spring piece 16 is effectively connected and fixed, the scissor spring piece 16 cooperates with the fixed thread cutting knife 15 and the movable thread cutting knife 17 to achieve the effect of effectively clamping the thread head, thereby achieving the purpose of improving the reliability of thread cutting.
[0033] like Figure 1 , Figure 2 As shown, the drive unit includes a wire trimming drive inner ring 8 and a wire trimming drive outer ring 3 which are hollow and respectively located on the front and rear sides. An annular groove is formed between the wire trimming drive inner ring 8 and the wire trimming drive outer ring 3, and a wire trimming cylinder 10 is connected to drive the wire trimming drive inner ring 8 and the wire trimming drive outer ring 3 to move back and forth along a linear direction. Of course, the wire trimming cylinder 10 can be replaced with a linear drive motor or an electromagnet or other device with a linear drive function. Among them, the wire trimming fixed knife 15 is connected to an L-shaped wire trimming drive plate 2. One end of the wire trimming drive plate 2 is inserted into the annular groove to facilitate circumferential rotation relative to the wire trimming drive inner ring 8 and the wire trimming drive outer ring 3. The other end passes through the hollow part of the wire trimming drive inner ring 8 to the front end to achieve the purpose of connecting the shearing and clamping unit.
[0034] At the same time, the shear-clamp integrated mechanism for circulating shuttle winding also includes a winding base plate 9. Wire cutting cylinders 10 are symmetrically arranged at both ends of the winding base plate 9, so that the wire cutting drive inner ring 8 and the wire cutting drive outer ring 3 are driven simultaneously by two symmetrically distributed wire cutting cylinders 10, thereby significantly improving the driving operation stability of the shear-clamp unit.
[0035] It should be noted that a cylinder joint 6 is provided at the output end of the thread trimming cylinder 10. The cylinder joint 6 is connected to a corresponding end of the thread trimming drive inner ring 8 or the thread trimming drive outer ring 3.
[0036] In this embodiment, the cylinder joint 6 is connected to the inner ring 8 of the wire trimming drive, and the two ends of the inner ring 8 of the wire trimming drive are provided with a wire trimming cylinder connection block 7. The wire trimming cylinder connection block 7 is L-shaped, and one end is provided with a wire trimming cylinder axial screw 5 hinged to the cylinder joint 6. Therefore, the wire trimming cylinder axial screw 5, the wire trimming cylinder connection block 7 and the cylinder joint 6 will realize a stable linear drive connection structure. At the same time, the other end of the wire trimming cylinder connection block 7 is connected and fixed to the inner ring 8 of the wire trimming drive, and a wire trimming guide shaft that passes through the wire trimming cylinder connection block 7, the wire trimming drive inner ring 8 and the winding base plate 9 in sequence is inserted. The wire trimming cylinder mounting plates 11 connected and fixed to the corresponding wire trimming cylinder 10 are provided at both ends of the winding base plate 9. Therefore, the wire trimming cylinder mounting plate 11 plays a role in stably installing the wire trimming cylinder 10. The wire trimming guide shaft plays a role in further improving the driving operation stability of the shearing and clamping unit.
[0037] like Figure 1 , Figure 2 As shown, the winding center shaft 1 is inserted into the hollow of the wire trimming driving inner ring 8 and the wire trimming driving outer ring 3. The winding center shaft 1 penetrates the winding base plate 9 and performs relative circumferential rotation to complete the winding action. Therefore, the wire trimming driving plate 2 is connected through the annular groove formed between the wire trimming driving inner ring 8 and the wire trimming driving outer ring 3, so that the shearing and clamping unit can be kept relatively fixed and conveniently rotated synchronously with the winding center shaft 1.
[0038] The axis of the winding center shaft 1 is used to install the winding shaft and the electromagnet and shuttle sleeve sleeve sleeved on the winding shaft. At the same time, a linear groove is provided on the outer side of the winding center shaft 1. The shear clamp unit is located in the linear groove, and an opening shear block 13 and a closing shear column 14 are provided in the linear groove for matching with the thread cutting moving knife 17 to drive the thread cutting action.
[0039] It should be noted that the closing shear column 14 is located at the front side and the opening shear baffle 13 is located at the rear side, and when the shear clamp unit makes a forward linear motion relative to the winding center shaft 1, after the lower end of the thread cutting movable knife 17 moves to contact with the closing shear column 14, the front end makes a downward swinging motion with the scissors fixing screw 18 to cooperate with the thread cutting fixed knife 15 to complete the thread cutting action; and when the shear clamp unit makes a backward linear motion relative to the winding center shaft 1, after the lower end of the thread cutting movable knife 17 moves to contact with the opening shear baffle 13, the front end makes an upward swinging motion with the scissors fixing screw 18 to cooperate with the thread cutting fixed knife 15 to complete the opening shearing action. In order to further improve the movement stability of the shear clamp unit and the structural coordination stability with the winding center shaft 1, a driving block 12 is provided in the linear groove, and the thread cutting driving plate 2 is inserted in the driving block 12 and the winding center shaft 1, and in order to further improve the rotation and stability of the winding center shaft 1, a bearing located in the winding base plate 9 is sleeved on the winding center shaft 1.
[0040] In summary, the present application provides a shear-clamp integrated mechanism for circulating shuttle winding, which realizes the thread cutting operation and clamps the thread head at the same time through the coordinated use of the thread cutting fixed knife 15, the scissor spring sheet 16 and the thread cutting movable knife 17, so as to facilitate the subsequent winding, and the overall structure is simple, reliable to use and highly applicable. At the same time, by allowing the shear-clamp unit to extend from the winding center shaft 1 during the thread cutting operation to complete the thread cutting operation, and to retract inward to the side of the winding center shaft 1 during the winding operation, the problem of the shear-clamp unit affecting the winding during the winding operation is effectively avoided. During the operation of the shearing and clamping unit, the opening and closing shearing actions are realized through the linear drive of the thread cutting cylinder 10, thereby achieving the effects of simple structure, stable operation and low cost, and significantly improving the applicability of the shearing and clamping integrated mechanism applied to the circular shuttle winding. In addition, by adjusting the installation position of the opening and closing shearing baffle 13 and the closing and closing shearing column 14, the extension amount of the thread cutting movable knife 17 and the thread cutting fixed knife 15 can be adjusted and determined, thereby realizing the convenient adjustment of the initial winding position of the bobbin core, and facilitating the detection of the bobbin core remainder effect.
[0041] The "first", "second", "third", "fourth", etc. (if any) referred to in this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods or devices.
[0042] It should be noted that the descriptions involving "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.
[0043] Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.
Claims
1. A shear-clamp integrated mechanism for a loop-winding shuttle, comprising a shear-clamp unit at the front end for thread cutting, characterized in that: The rear end of the shearing and clamping unit is connected to a driving unit and is provided with a fixed thread trimmer (15), a movable thread trimmer (17), a scissor spring piece (16) and a scissor fixing screw (18) as a rotating pivot arranged in sequence from the inside to the outside; the driving unit is used to drive the shearing and clamping unit to move back and forth along a linear direction and drive the movable thread trimmer (17) to swing with the scissor fixing screw (18) as an axis, and the scissor spring piece (16) is used to cooperate with the fixed thread trimmer (15) and the movable thread trimmer (17) to clamp and fix the thread end.
2. The shear-clamp integrated mechanism for circulating shuttle according to claim 1, characterized in that: A spring locating pin (19) is provided on the outer side of the rear end of the fixed thread trimming knife (15), and the movable thread trimming knife (17) is provided with a waist groove for the spring locating pin (19) to pass through and move. When the fixed thread trimming knife (15) and the movable thread trimming knife (17) are fully opened and fully closed, the spring locating pin (19) is respectively located at both ends of the waist groove.
3. The shear-clamp integrated mechanism for circulating shuttle according to claim 2, characterized in that: The spring piece positioning pin (19) is inserted and fixed in the scissor spring piece (16).
4. The shear-clamp integrated mechanism for circulating shuttle according to claim 1, characterized in that: The driving unit comprises a hollow inner ring (8) and an outer ring (3) of the thread trimming drive, which are respectively located at the front and rear sides. An annular groove is formed between the inner ring (8) and the outer ring (3), and a thread trimming cylinder (10) is connected to the inner ring (8) and the outer ring (3) of the thread trimming drive for linear reciprocating movement. The fixed thread trimming knife (15) is connected to an L-shaped thread trimming drive plate (2), one end of the thread trimming drive plate (2) is inserted into the annular groove, and the other end passes through the hollow part of the inner ring (8) of the thread trimming drive toward the front end.
5. The shear-clamp integrated mechanism for circulating shuttle according to claim 4, characterized in that: The invention also comprises a winding base plate (9), wherein both symmetrical ends of the winding base plate (9) are provided with a thread trimming cylinder (10), and the output end of the thread trimming cylinder (10) is provided with a cylinder joint (6), and the cylinder joint (6) is connected to a corresponding end of the thread trimming drive inner ring (8) or the thread trimming drive outer ring (3).
6. The shear-clamp integrated mechanism for circulating shuttle according to claim 5, characterized in that: Both ends of the thread trimming drive inner ring (8) are provided with thread trimming cylinder connecting blocks (7), the thread trimming cylinder connecting block (7) is L-shaped, and one end is provided with a thread trimming cylinder axial screw (5) hinged to the cylinder joint (6).
7. The shear-clamp integrated mechanism for circulating shuttle according to claim 6, characterized in that: The other end of the thread trimming cylinder connecting block (7) is connected and fixed to the thread trimming drive inner ring (8), and is plugged with a thread trimming guide shaft that sequentially passes through the thread trimming cylinder connecting block (7), the thread trimming drive inner ring (8) and the winding base plate (9); both ends of the winding base plate (9) are provided with a thread trimming cylinder mounting plate that is connected and fixed to the corresponding thread trimming cylinder (10).
8. The shear-clamp integrated mechanism for circulating shuttle according to claim 4, characterized in that: The hollows of the inner and outer rings (8) of the thread trimming drive and the outer rings (3) of the thread trimming drive are connected with a winding center shaft (1), and the axis of the winding center shaft (1) is used to install the winding shaft and the electromagnet and shuttle shaft sleeve sleeve sleeved on the winding shaft; a linear groove is provided on the outer side of the winding center shaft (1), and the shearing and clamping unit is located in the linear groove, and an opening and closing shearing block (13) and a closing shearing column (14) for matching and driving the thread trimming movable knife (17) to complete the thread trimming action are provided in the linear groove; the closing shearing column (14) is located on the front side and the opening and closing shearing block (13) is located on the rear side, and when the shearing and clamping unit is When the shear clamp unit makes a linear motion relative to the winding center axis (1), the lower end of the thread cutting movable knife (17) moves to contact the closed shear column (14), and the front end makes a downward swinging motion with the scissors fixing screw (18) to cooperate with the thread cutting fixed knife (15) to complete the thread cutting action; and when the shear clamp unit makes a linear motion relative to the winding center axis (1), the lower end of the thread cutting movable knife (17) moves to contact the shear opening baffle (13), and the front end makes an upward swinging motion with the scissors fixing screw (18) to cooperate with the thread cutting fixed knife (15) to complete the shearing action.
9. The shear-clamp integrated mechanism for circulating shuttle according to claim 8, characterized in that: A driving pressure block (12) is provided in the linear groove, and the wire cutting driving plate (2) is inserted into the driving pressure block (12) and the winding center shaft (1).
10. The shear-clamp integrated mechanism for circulating shuttle according to claim 8, characterized in that: The winding center shaft (1) is sleeved with a bearing located in the winding base plate (9).
Citation Information
Patent Citations
Winder structure of sewing machine
CN211036364U
Flatcar all -in -one
CN204803540U
Scissors for large-range thread trimming of buttonholing machine
CN215925265U
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