Tooth fork assembling jig of sewing machine

Abstract

The utility model relates to the field of clothing manufacturing, in particular to a sewing machine tooth fork assembling jig. The utility model provides a sewing machine tooth fork assembling jig which can conveniently carry out auxiliary positioning on a presser foot and a machine needle, ensure the accuracy of an installation position and improve the coaxiality of the presser foot and the machine needle. A sewing machine fork assembling jig comprises a base, a sewing machine and the like, and the upper side of the rear portion of the base is connected with the sewing machine. According to the utility model, the overturning die is inserted into the base, the clamping block is used for centering and positioning the machine needle, the positioning clamping block is used for clamping the machine needle, the positioning block is moved, taken out and horizontally rotated, and then the positioning block is inserted into the limiting piece, so that the mounting position of the presser foot is aligned with the fixed frame; the effects that auxiliary positioning can be conveniently carried out on the presser foot and the machine needle, it is ensured that the installation position is accurate, and the coaxiality of the presser foot and the machine needle is improved are achieved.

Description

Technical Field

[0001] This utility model relates to the field of garment manufacturing, and in particular to a sewing machine tooth fork assembly fixture. Background Technology

[0002] In many textile-related industries such as garment manufacturing and home furnishing sewing, sewing machines are core production equipment, and their performance and operational precision directly affect the production efficiency and finished product quality. The sewing machine's feed fork assembly, as a key structure controlling the coordinated work of the presser foot and needle, is particularly crucial in terms of assembly precision. The presser foot is responsible for pressing the fabric firmly during sewing, ensuring its smooth transport; the needle, on the other hand, is responsible for piercing the fabric and forming stitches.

[0003] In the existing sewing machine fork assembly process, the positioning and installation of the presser foot and needle mainly rely on the operator's experience and manual operation. Due to the lack of effective auxiliary positioning tools, it is difficult to ensure the accuracy of the presser foot and needle installation during the installation process, thus affecting the assembly precision.

[0004] Therefore, it is necessary to design a sewing machine feeder assembly fixture that can facilitate the auxiliary positioning of the presser foot and the needle, ensure accurate installation, and improve the coaxiality of the presser foot and the needle. Utility Model Content

[0005] To overcome the shortcomings of existing sewing machine fork assembly, which lacks effective auxiliary positioning tools and makes it difficult to ensure the accuracy of presser foot and needle installation during the installation process, thus affecting the assembly precision, this utility model provides a sewing machine fork assembly fixture that can conveniently assist in positioning the presser foot and needle, ensure accurate installation position, and improve the coaxiality of the presser foot and needle.

[0006] The technical solution is as follows: A sewing machine tooth fork assembly fixture includes a base, a sewing machine, a flipping mold, a positioning block, a clamping block, a first bidirectional lead screw, a presser foot, a limiting component, a mounting shell, a fixing frame, a presser rod, a connecting rod, a quick-release assembly, and a clamping assembly. The sewing machine is connected to the upper rear side of the base. The flipping mold is detachably connected to the front of the sewing machine. The limiting component is detachably connected to the upper side of the flipping mold. The positioning block is slidably engaged with the limiting component. The first bidirectional lead screw is rotatably connected to the right side of the positioning block. The first bidirectional lead screw is threadedly connected to both the front and rear sides of the first bidirectional lead screw. The clamping blocks are slidably connected to the positioning blocks. A presser foot is placed on the left side of the positioning block. A presser rod is provided at the front left side of the sewing machine. A connecting rod is provided at the front right side of the sewing machine. The mounting shell is connected to the lower side of the connecting rod. The fixing frame is connected to the lower side of the presser rod. The fixing frame is provided with a quick-release assembly for easy quick-release. The mounting shell is provided with a clamping assembly for centered clamping.

[0007] Furthermore, both the left and right sides of the base are equipped with threaded bolts, which are engaged with the flipping mold.

[0008] Furthermore, a handle is provided on the front side of the first bidirectional lead screw.

[0009] Furthermore, the quick-release assembly includes a spring, a pressure plate, steel balls, and movable balls. The pressure plate is slidably connected inside the mounting housing, and a spring connects the pressure plate to the mounting housing. Multiple steel balls are sleeved on both the front and rear parts of the mounting housing, and multiple movable balls are placed inside the mounting housing. Each movable ball is in contact with an adjacent steel ball and with the lower side of the pressure plate.

[0010] Furthermore, it also includes a clamping assembly, which includes a second bidirectional lead screw, a needle, and positioning clamps. The second bidirectional lead screw is rotatably connected to the lower part of the mounting housing. Positioning clamps are threadedly connected to both the front and rear parts of the second bidirectional lead screw. The positioning clamps are slidably connected to the mounting housing, and the needle is engaged between the positioning clamps.

[0011] Furthermore, it also includes a knob, with a knob connected to the rear side of the second bidirectional lead screw.

[0012] The beneficial effects are as follows: 1. This utility model flips the mold and inserts it into the base, centers the needle by clamping the clamping block, clamps the needle by positioning the positioning block, moves and removes the positioning block and rotates it horizontally, and then inserts the positioning block into the limiting part, so that the presser foot installation position is aligned with the fixed frame, which can facilitate the auxiliary positioning of the presser foot and the needle, ensure the accurate installation position, and improve the coaxiality of the presser foot and the needle.

[0013] 2. This utility model uses a fixed frame to compress steel balls, causing the steel balls to move inward and compress movable balls. The movable balls then compress the pressure plate upward. When the fixed frame moves downward a certain distance, the pressure plate moves downward, and the movable balls compress the steel balls, causing the steel balls to engage with the pressure foot. This achieves the effect of convenient and quick installation of the pressure foot, simple operation, fast installation speed, and improved work efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the flipping mold and positioning block and other components of this utility model.

[0016] Figure 3 This is a cross-sectional three-dimensional structural diagram of the fixed frame and pressure bar components of this utility model.

[0017] Figure 4 This is a cross-sectional three-dimensional structural diagram of the spring and pressure plate components of this utility model.

[0018] Figure 5 This is a cross-sectional three-dimensional structural diagram of the second bidirectional lead screw and needle components of this utility model.

[0019] Parts and their numbers in the diagram: 1_Base, 2_Sewing machine, 3_Flipping mold, 4_Positioning block, 41_Clamping block, 42_First bidirectional lead screw, 43_Presser foot, 44_Limiting component, 5_Mounting shell, 6_Fixing frame, 7_Pressure rod, 71_Spring, 72_Pressure plate, 73_Steel ball, 74_Moving ball, 8_Connecting rod, 81_Second bidirectional lead screw, 82_Needle, 83_Positioning clamp, 84_Knob. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings.

[0021] A sewing machine fork assembly fixture, such as Figures 1-3 As shown, the assembly includes a base 1, a sewing machine 2, a flipping mold 3, a positioning block 4, a clamping block 41, a first bidirectional lead screw 42, a presser foot 43, a limiting component 44, a mounting shell 5, a fixing frame 6, a pressure rod 7, a connecting rod 8, a quick-release assembly, and a clamping assembly. The sewing machine 2 is connected to the upper rear of the base 1, and the flipping mold 3 is detachably connected to the front of the sewing machine 2. Bolts are threaded on both the left and right sides of the base 1, and these bolts engage with the flipping mold 3. The limiting component 44 is detachably connected to the upper side of the flipping mold 3, and the positioning block 41 is slidably engaged on the limiting component 44. The right side of the positioning block 4 is rotatably connected to the first bidirectional lead screw 42. The front side of the first bidirectional lead screw 42 is provided with a handle for easy gripping. The front and rear parts of the first bidirectional lead screw 42 are threadedly connected to clamping blocks 41. The clamping blocks 41 are slidably connected to the positioning block 4. The left side of the positioning block 4 is provided with a presser foot 43. The front left side of the sewing machine 2 is provided with a presser bar 7. The front right side of the sewing machine 2 is provided with a connecting rod 8. The lower side of the connecting rod 8 is connected to the mounting shell 5. The lower side of the presser bar 7 is connected to a fixing frame 6. The fixing frame 6 is provided with a quick-release component. The mounting shell 5 is provided with a clamping component.

[0022] like Figure 4 As shown, the quick-release assembly includes a spring 71, a pressure plate 72, steel balls 73, and movable balls 74. The pressure plate 72 is slidably connected inside the mounting shell 5. The spring 71 connects the pressure plate 72 to the mounting shell 5. Three steel balls 73 are sleeved on both the front and rear parts of the mounting shell 5. Six movable balls 74 are placed inside the mounting shell 5. Each movable ball 74 is in contact with an adjacent steel ball 73 and the lower side of the pressure plate 72.

[0023] like Figure 5 As shown, it also includes a clamping assembly, which includes a second bidirectional lead screw 81, a needle 82, a positioning clamping block 83, and a knob 84. The second bidirectional lead screw 81 is rotatably connected to the lower part of the mounting housing 5. The positioning clamping blocks 83 are threadedly connected to both the front and rear parts of the second bidirectional lead screw 81. The positioning clamping blocks 83 are slidably connected to the mounting housing 5. The needle 82 is clamped between the positioning clamping blocks 83. The knob 84 is connected to the rear side of the second bidirectional lead screw 81.

[0024] When using this device, first place the base 1 in the sewing machine 2's toothed fork assembly area, then loosen the bolts by rotating them. Next, move the flipping mold 3 forward and remove it. Then, flip the flipping mold 3 and insert it into the base 1. Then, place the needle 82 between the clamping blocks 41. Next, rotate the first bidirectional lead screw 42, causing the clamping blocks 41 to move under the action of the threads, so that the clamping blocks 41 move closer together to clamp the needle 82 in the center, so that the needle 82 is located below the mounting shell 5. Then, control the connecting rod 8 of the sewing machine 2 to move downwards. Position the needle 82 between the positioning blocks 83, then rotate the knob 84 to rotate the second bidirectional lead screw 81. This causes the positioning blocks 83 to move under the action of the threads, thus centering and clamping the needle 82. After the needle 82 is installed, rotate the first bidirectional lead screw 42 to move the clamping blocks 41 under the action of the threads, causing the clamping blocks 41 to move away from each other and no longer contact the needle 82. This provides auxiliary positioning for the needle 82 during installation. Then, the connecting rod 8 moves upward to drive the installation... The housing 5 is moved upward, and then the positioning block 4 is moved to the right and removed. The positioning block 4 is then rotated horizontally and inserted into the limiting member 44, so that the installation position of the presser foot 43 is below the fixed frame 6. This facilitates the auxiliary positioning of the presser foot 43 and the needle 82, ensuring accurate installation and improving the coaxiality of the presser foot 43 and the needle 82. Subsequently, the presser bar 7 is controlled by the sewing machine 2 to move downward, causing the fixed frame 6 to move downward and contact the presser foot 43. This causes the fixed frame 6 to squeeze the steel ball 73, which in turn moves the steel ball 73 inward. The movement of the steel ball 73 compresses the movable ball 74, causing the movable ball 74 to move upward. The movable ball 74 then compresses the pressure plate 72, causing the spring 71 to contract. When the fixed frame 6 moves downward a certain distance, the spring 71 returns to its original state, causing the pressure plate 72 to move downward. The movable ball 74 then compresses the steel ball 73 outward, causing the steel ball 73 to engage with the pressure foot 43. This fixes the pressure foot 43 onto the fixed frame 6, allowing for quick and easy installation of the pressure foot 43. The operation is simple, the installation speed is fast, and work efficiency is improved.

[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A sewing machine fork assembly jig characterized by, The components include a base (1), a sewing machine (2), a flipping mold (3), a positioning block (4), a clamping block (41), a first bidirectional lead screw (42), a presser foot (43), a limiting component (44), a mounting shell (5), a fixing frame (6), a pressure bar (7), a connecting rod (8), a quick-release assembly, and a clamping assembly. The sewing machine (2) is connected to the upper rear side of the base (1). The flipping mold (3) is detachably connected to the front of the sewing machine (2). The limiting component (44) is detachably connected to the upper side of the flipping mold (3). The positioning block (4) is slidably engaged on the limiting component (44). The positioning block (4) is rotated on the right side. The first bidirectional lead screw (42) is connected to the first bidirectional lead screw (42). Both the front and rear parts of the first bidirectional lead screw (42) are threadedly connected to clamping blocks (41). The clamping blocks (41) are slidably connected to the positioning blocks (4). The left side of the positioning blocks (4) is equipped with a presser foot (43). The front left side of the sewing machine (2) is equipped with a presser bar (7). The front right side of the sewing machine (2) is equipped with a connecting rod (8). The lower side of the connecting rod (8) is connected to a mounting shell (5). The lower side of the presser bar (7) is connected to a fixing frame (6). The fixing frame (6) is equipped with a quick-installation component that can be easily installed. The mounting shell (5) is equipped with a clamping component that can be clamped in the center.

2. The sewing machine fork assembly jig according to claim 1, wherein Both sides of the base (1) are threaded with bolts, and the bolts are engaged with the flipping mold (3).

3. The sewing machine fork assembly jig according to claim 1, wherein The first bidirectional lead screw (42) has a handle on the front side.

4. The sewing machine fork assembly jig according to claim 1, wherein The quick-release assembly includes a spring (71), a pressure plate (72), steel balls (73) and movable balls (74). The pressure plate (72) is slidably connected inside the mounting shell (5). The spring (71) is connected between the pressure plate (72) and the mounting shell (5). Multiple steel balls (73) are sleeved on both the front and rear parts of the mounting shell (5). Multiple movable balls (74) are placed inside the mounting shell (5). The movable balls (74) are in contact with the adjacent steel balls (73). The movable balls (74) are in contact with the lower side of the pressure plate (72).

5. The sewing machine fork assembly jig according to claim 1, wherein It also includes a clamping assembly, which includes a second bidirectional lead screw (81), a needle (82) and a positioning clamp (83). The second bidirectional lead screw (81) is rotatably connected to the lower part of the mounting shell (5). The positioning clamp (83) is threadedly connected to both the front and rear parts of the second bidirectional lead screw (81). The positioning clamp (83) is slidably connected to the mounting shell (5). The needle (82) is clamped between the positioning clamps (83).

6. A sewing machine fork assembly fixture according to claim 5, characterized in that, It also includes a knob (84), and the knob (84) is connected to the rear side of the second bidirectional lead screw (81).

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