Clamp for assembling rotating shuttle

Abstract

The utility model discloses a fixture for assembling a rotating shuttle, which belongs to the technical field of sewing machine accessories and comprises an assembling table, a moving block is slidably connected in the assembling table, a clamping mechanism is rotatably connected in the assembling table, a clamping mechanism is fixedly mounted in the assembling table, and the moving block is movably connected with the clamping mechanism. An adjusting mechanism is fixedly installed on the surface of the assembling table, an opening mechanism is fixedly installed on the surface of the adjusting mechanism, a containing hole is formed in the assembling table, rotating grooves are formed in the two sides of the containing hole, and a rotating shuttle can be clamped through a clamping mechanism, so that the rotating shuttle is fixed in the assembling table. The opening mechanism can be attached to the inner wall of the rotating shuttle, and the clamped rotating shuttle can rotate when the motor is started through cooperation of the ball, the bearing and the opening mechanism, so that the position where other tools need to be used for assembly is exposed, and the assembly quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine parts technology, and in particular to a clamp for assembling a rotary hook. Background Technology

[0002] The rotary hook is an important component of a sewing machine. In lockstitch sewing machines commonly used in the garment industry, the rotary hook frame is fixed while the rotary hook bed rotates. The tip of the rotary hook bed hooks the thread loop, and the hook of the rotary hook frame separates the thread, allowing the sewing thread to pass around the bobbin sleeve and the bottom and top of the rotary hook frame, and then come off from the head of the rotary hook plate to form a thread loop.

[0003] In the sewing machine production process, the rotary hook needs to be clamped and fixed. Existing rotary hook assembly fixtures can complete the clamping of the rotary hook. However, in the process of assembling the rotary hook, other tools such as screwdrivers and wrenches are usually required. If the structure of the fixture does not take into account the operating space of these tools, it will bring difficulties to the assembly. For example, the screw tightening position of the fixture is blocked by the fixture parts, and there is not enough space for the screwdriver to be inserted and tightened. This will increase the assembly time and difficulty, and may even prevent the screw from being tightened to the proper degree due to the inconvenience of operation, affecting the installation quality of the rotary hook.

[0004] Therefore, there is an urgent need to provide a jig for rotary hook assembly to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a jig for rotary hook assembly.

[0006] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a jig for rotary hook assembly is provided, including an assembly table, a movable block is slidably connected inside the assembly table, a clamping mechanism is rotatably connected inside the assembly table, and further includes;

[0007] The assembly table is fixedly installed with a snap-fit ​​mechanism inside, and an adjustment mechanism is fixedly installed on the surface of the assembly table. A spreading mechanism is fixedly installed on the surface of the adjustment mechanism.

[0008] The present invention is further configured such that: a placement hole is provided inside the assembly table, and rotating grooves are provided on both sides of the placement hole.

[0009] The above technical solution uses a placement hole for placing the rotary hook and a rotating groove for rotating the clamping mechanism, which facilitates clamping the rotary hook.

[0010] The present invention is further configured such that: the movable block is slidably connected inside the placement hole, a first spring is fixedly installed on the lower surface of the movable block, the other end of the first spring is fixedly connected to the inside of the placement hole, a docking hole is opened on the surface of the movable block, a bearing is fixedly installed inside the docking hole, and symmetrical slots are opened on the surface of the movable block.

[0011] With the above technical solution, when the rotary hook is placed inside the placement hole, the pressing moving block moves down inside the placement hole, the first spring is in a compressed state, the protruding end of the rotary hook can be placed inside the docking hole, the bearing cooperates with the spreading mechanism to enable the clamped rotary hook to rotate, and the slot cooperates with the locking block to fix the position of the moving block inside the placement hole.

[0012] The present invention is further configured such that: the clamping mechanism includes a rotating bracket, the rotating bracket is rotatably connected inside the rotating groove, one end of the rotating bracket is hinged to a pressing head, the surface of the pressing head is rotatably connected to a plurality of ball bearings, the other end of the rotating bracket is movably fitted to the surface of the moving block, a rotating shaft is fixedly installed in the middle of the rotating bracket, the two ends of the rotating shaft are rotatably connected inside the rotating groove, and a torsion spring is fixedly connected to the surface of the rotating bracket and the interior of the rotating groove.

[0013] With the above technical solution, when the rotary hook is placed on the surface of the moving block, the moving block is pressed down and one end of the rotating bracket is squeezed by the moving block and rotates, so that the pressing head can contact the surface of the rotary hook and press the rotary hook. The ball bearing and the spreading mechanism enable the rotary hook to rotate, and the rotating shaft and the torsion spring enable the rotating bracket to return to the initial state.

[0014] The present invention is further configured such that: the snap-fit ​​mechanism includes a pull rod, the pull rod is slidably connected inside the assembly table, a snap-fit ​​block is fixedly installed at the end of the pull rod, the snap-fit ​​block is movably inserted into the snap-fit ​​slot, the assembly table has symmetrical storage slots inside, the snap-fit ​​block is slidably connected inside the storage slots, and a second spring is fixedly connected between the surface of the snap-fit ​​block and the inside of the storage slot.

[0015] Through the above technical solution, during the downward movement of the moving block, the two locking blocks are squeezed back into the storage slot. When the locking slot of the moving block and the locking block are on the same horizontal plane, the locking block pops out under the action of the second spring and inserts into the locking slot to fix the position of the moving block. After the rotary hook is assembled, the pull rod is pulled to move the locking block out of the locking slot. The first spring rebounds, causing the moving block to rise inside the placement hole, thereby allowing the assembled rotary hook to be lifted up for easy handling by the staff.

[0016] The present invention is further configured such that: the adjusting mechanism includes a cylinder, the cylinder is fixedly installed on the surface of the assembly table, a fixing plate is fixedly installed at the end of the cylinder, a motor is fixedly installed on the surface of the fixing plate, and a transmission rod is drivenly connected to the output end of the motor.

[0017] Through the above technical solution, the height of the fixed plate can be adjusted by the cylinder, and the height of the spreading mechanism can be adjusted further. After the motor is started, the transmission rod rotates, thereby enabling the spreading mechanism to rotate and realizing the rotation of the rotary hook.

[0018] The present invention is further configured such that: the spreading mechanism includes an upper connecting block, the upper connecting block is fixedly installed at the end of the transmission rod, an electric telescopic rod is fixedly installed on the surface of the upper connecting block, a lower connecting block is fixedly installed at the end of the electric telescopic rod, a plurality of upper supports are hinged to the surface of the upper connecting block, a plurality of lower supports are hinged to the surface of the lower connecting block, the ends of the upper supports and the lower supports are hinged, and a plurality of protrusions are fixedly installed at the hinge point of the upper supports and the lower supports.

[0019] With the above technical solution, when the electric telescopic rod is started, the lower connecting block approaches the upper connecting block. Through the hinge between the upper and lower brackets, the included angle between the upper and lower brackets becomes smaller, but the distance between the hinge and the electric telescopic rod becomes longer, so that it can fit into the inside of the rotary hook. After the motor is started, the opening mechanism rotates, thereby driving the rotary hook to rotate. The position that requires assembly with other tools is exposed, thereby improving the assembly quality.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model is equipped with a clamping mechanism and a spreading mechanism. The clamping mechanism can clamp the rotary shuttle and fix it inside the assembly table. The spreading mechanism can fit against the inner wall of the rotary shuttle. Through the cooperation of the ball bearings and the spreading mechanism, the clamped rotary shuttle can be rotated when the motor is started, thereby exposing the position that needs to be assembled with other tools, thus improving the quality of assembly. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the device of this utility model;

[0023] Figure 2 This is a cross-sectional structural diagram of the device of this utility model;

[0024] Figure 3 This is a schematic diagram of the opening mechanism of the device of this utility model;

[0025] Figure 4 This is a schematic diagram of the moving block structure of the device of this utility model;

[0026] Figure 5 This is a schematic diagram of the snap-fit ​​mechanism of the device of this utility model.

[0027] In the diagram: 1. Assembly table; 11. Placement hole; 12. Rotating groove; 2. Moving block; 21. First spring; 22. Docking hole; 23. Bearing; 24. Slot; 3. Clamping mechanism; 31. Rotating bracket; 32. Pressing head; 33. Ball bearing; 34. Rotating shaft; 35. Torsion spring; 4. Snap-fit ​​mechanism; 41. Pull rod; 42. Locking block; 43. Storage slot; 44. Second spring; 5. Adjustment mechanism; 51. Cylinder; 52. Fixing plate; 53. Motor; 54. Transmission rod; 6. Spreading mechanism; 61. Upper connecting block; 62. Electric telescopic rod; 63. Lower connecting block; 64. Upper bracket; 65. Lower bracket; 66. Protrusion. Detailed Implementation

[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0029] Please see Figures 1-5 This application provides a jig for rotary hook assembly, including an assembly table 1, a movable block 2 slidably connected inside the assembly table 1, and a clamping mechanism 3 rotatably connected inside the assembly table 1.

[0030] like Figure 2 As shown, the assembly table 1 has a placement hole 11 inside, and a rotating groove 12 is provided on both sides of the placement hole 11.

[0031] In this embodiment: the placement hole 11 is used for placing the rotary shuttle, and the rotating groove 12 is used for rotating the clamping mechanism 3 to facilitate clamping the rotary shuttle.

[0032] like Figure 4 As shown, the movable block 2 is slidably connected inside the placement hole 11. A first spring 21 is fixedly installed on the lower surface of the movable block 2. The other end of the first spring 21 is fixedly connected to the inside of the placement hole 11. A docking hole 22 is opened on the surface of the movable block 2. A bearing 23 is fixedly installed inside the docking hole 22. A symmetrical slot 24 is opened on the surface of the movable block 2.

[0033] In this embodiment: when the rotary hook is placed inside the placement hole 11, the pressing moving block 2 moves down inside the placement hole 11, the first spring 21 is in a compressed state, the protruding end of the rotary hook can be placed inside the docking hole 22, the bearing 23 cooperates with the spreading mechanism 6 to enable the clamped rotary hook to rotate, and the slot 24 cooperates with the locking block 42 to fix the position of the moving block 2 inside the placement hole 11.

[0034] like Figure 2As shown, the clamping mechanism 3 includes a rotating bracket 31, which is rotatably connected inside the rotating groove 12. One end of the rotating bracket 31 is hinged to a pressing head 32, and a plurality of balls 33 are rotatably connected to the surface of the pressing head 32. The other end of the rotating bracket 31 is in movable contact with the surface of the moving block 2. A rotating shaft 34 is fixedly installed in the middle of the rotating bracket 31, and both ends of the rotating shaft 34 are rotatably connected inside the rotating groove 12. A torsion spring 35 is fixedly connected to the surface of the rotating bracket 31 and the interior of the rotating groove 12.

[0035] In this embodiment: when the rotary hook is placed on the surface of the moving block 2, the moving block 2 is pressed down and moved. One end of the rotating bracket 31 is squeezed by the moving block 2 and rotates, so that the pressing head 32 can contact the surface of the rotary hook and press the rotary hook. The ball bearing 33, together with the bearing 23 and the spreading mechanism 6, enables the rotary hook to rotate. The rotating shaft 34 and the torsion spring 35 enable the rotating bracket 31 to return to its initial state.

[0036] The assembly table 1 is internally fixedly equipped with a snap-fit ​​mechanism 4, and the assembly table 1 is fixedly equipped with an adjustment mechanism 5. The adjustment mechanism 5 is fixedly equipped with a spreading mechanism 6.

[0037] like Figure 5 As shown, the locking mechanism 4 includes a pull rod 41, which is slidably connected inside the assembly table 1. A locking block 42 is fixedly installed at the end of the pull rod 41. The locking block 42 is movably inserted into the slot 24. A symmetrical storage slot 43 is provided inside the assembly table 1. The locking block 42 is slidably connected inside the storage slot 43. A second spring 44 is fixedly connected between the surface of the locking block 42 and the inside of the storage slot 43.

[0038] In this embodiment: During the downward movement of the moving block 2, the two locking blocks 42 are squeezed and retracted into the storage slot 43. When the slot 24 of the moving block 2 and the locking block 42 are on the same horizontal plane, the locking block 42 pops out under the action of the second spring 44 and inserts into the slot 24 to fix the position of the moving block 2. After the rotary hook is assembled, the pull rod 41 is pulled to remove the locking block 42 from the slot 24. The first spring 21 rebounds, causing the moving block 2 to rise inside the placement hole 11, thereby allowing the assembled rotary hook to be lifted up for easy handling by the staff.

[0039] like Figure 2 As shown, the adjustment mechanism 5 includes a cylinder 51, which is fixedly mounted on the surface of the assembly table 1. A fixing plate 52 is fixedly mounted on the end of the cylinder 51, and a motor 53 is fixedly mounted on the surface of the fixing plate 52. A transmission rod 54 is connected to the output end of the motor 53.

[0040] In this embodiment: the height of the fixed plate 52 can be adjusted by the cylinder 51, and the height of the spreading mechanism 6 can be adjusted further. After the motor 53 is started, the transmission rod 54 rotates, thereby enabling the spreading mechanism 6 to rotate and realizing the rotation of the rotary shuttle.

[0041] like Figure 3 As shown, the spreading mechanism 6 includes an upper connecting block 61, which is fixedly installed at the end of the transmission rod 54. An electric telescopic rod 62 is fixedly installed on the surface of the upper connecting block 61, and a lower connecting block 63 is fixedly installed at the end of the electric telescopic rod 62. Multiple upper supports 64 are hinged to the surface of the upper connecting block 61, and multiple lower supports 65 are hinged to the surface of the lower connecting block 63. The ends of the upper supports 64 and the lower supports 65 are hinged together, and multiple protrusions 66 are fixedly installed at the hinge joint between the upper supports 64 and the lower supports 65.

[0042] In this embodiment: When the electric telescopic rod 62 is started, the lower connecting block 63 approaches the upper connecting block 61. Through the hinge between the upper bracket 64 and the lower bracket 65, the included angle between the upper bracket 64 and the lower bracket 65 becomes smaller, but the distance between the hinge and the electric telescopic rod 62 becomes longer, so that it can fit into the inside of the rotary hook. After the motor 53 is started, the spreading mechanism 6 rotates, thereby driving the rotary hook to rotate. The position that needs to be assembled with other tools is exposed, thereby improving the quality of assembly.

[0043] In use, the rotary hook is placed inside the placement hole 11 and pressed down. The moving block 2 first contacts one end of the rotating bracket 31 and squeezes the rotating bracket 31, causing the rotating bracket 31 to rotate. The pressing head 32 at the other end is in contact with the surface of the rotary hook, continuously pressing the rotary hook. The moving block 2 continues to move downward. When the slot 24 of the moving block 2 and the locking block 42 are on the same horizontal plane, the locking block 42 pops out under the action of the second spring 44 and inserts into the slot 24 to fix the position of the moving block 2. To rotate the rotary hook, start cylinder 51, which moves the opening mechanism 6 into the interior of the rotary hook. When the electric telescopic rod 62 is started, the lower connecting block 63 approaches the upper connecting block 61. Through the hinge between the upper bracket 64 and the lower bracket 65, the included angle between the upper bracket 64 and the lower bracket 65 becomes smaller, but the distance between the hinge and the electric telescopic rod 62 becomes longer, so that it can fit into the interior of the rotary hook. After starting motor 53, the opening mechanism 6 rotates, thereby driving the rotary hook to rotate, thus exposing the position that needs to be assembled with other tools.

[0044] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A jig for assembling a rotary hook, comprising an assembly table (1), characterized in that, The assembly table (1) is slidably connected to a moving block (2), and the assembly table (1) is rotatably connected to a clamping mechanism (3), and also includes; The assembly table (1) is fixedly installed with a snap-fit ​​mechanism (4), and the surface of the assembly table (1) is fixedly installed with an adjustment mechanism (5). The surface of the adjustment mechanism (5) is fixedly installed with a spreading mechanism (6).

2. The jig for assembling a rotary hook according to claim 1, characterized in that: The assembly table (1) has a placement hole (11) inside, and a rotating groove (12) is provided on both sides of the placement hole (11).

3. A jig for assembling a rotary hook according to claim 2, characterized in that: The movable block (2) is slidably connected inside the placement hole (11). A first spring (21) is fixedly installed on the lower surface of the movable block (2). The other end of the first spring (21) is fixedly connected to the inside of the placement hole (11). A docking hole (22) is opened on the surface of the movable block (2). A bearing (23) is fixedly installed inside the docking hole (22). A symmetrical slot (24) is opened on the surface of the movable block (2).

4. A jig for assembling a rotary hook according to claim 2, characterized in that: The clamping mechanism (3) includes a rotating bracket (31), which is rotatably connected inside the rotating groove (12). One end of the rotating bracket (31) is hinged to a pressing head (32), and a plurality of balls (33) are rotatably connected to the surface of the pressing head (32). The other end of the rotating bracket (31) is in contact with the surface of the moving block (2). A rotating shaft (34) is fixedly installed in the middle of the rotating bracket (31), and both ends of the rotating shaft (34) are rotatably connected inside the rotating groove (12). A torsion spring (35) is fixedly connected to the surface of the rotating bracket (31) and the interior of the rotating groove (12).

5. A jig for assembling a rotary hook according to claim 3, characterized in that: The latching mechanism (4) includes a pull rod (41), which is slidably connected inside the assembly table (1). A latching block (42) is fixedly installed at the end of the pull rod (41). The latching block (42) is movably inserted into the slot (24). A symmetrical storage slot (43) is provided inside the assembly table (1). The latching block (42) is slidably connected inside the storage slot (43). A second spring (44) is fixedly connected between the surface of the latching block (42) and the inside of the storage slot (43).

6. A jig for assembling a rotary hook according to claim 1, characterized in that: The adjustment mechanism (5) includes a cylinder (51), which is fixedly installed on the surface of the assembly table (1). A fixing plate (52) is fixedly installed at the end of the cylinder (51), and a motor (53) is fixedly installed on the surface of the fixing plate (52). A transmission rod (54) is connected to the output end of the motor (53).

7. A jig for assembling a rotary hook according to claim 6, characterized in that: The spreading mechanism (6) includes an upper connecting block (61), which is fixedly installed at the end of the transmission rod (54). An electric telescopic rod (62) is fixedly installed on the surface of the upper connecting block (61), and a lower connecting block (63) is fixedly installed at the end of the electric telescopic rod (62). Multiple upper brackets (64) are hinged to the surface of the upper connecting block (61), and multiple lower brackets (65) are hinged to the surface of the lower connecting block (63). The ends of the upper brackets (64) and the lower brackets (65) are hinged together, and multiple protrusions (66) are fixedly installed at the hinge joint between the upper brackets (64) and the lower brackets (65).

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