Quick-change positioning pin for sewing template

Abstract

The utility model discloses a kind of sewing template quick-change positioning pins, it is related to textile machinery technical field, including mould frame and sewing template, the T-shaped slide groove of length direction extension is equipped on mould frame upper end face, two T-shaped sliders are slidably fitted in slide groove, rectangular plate extending to the front of mould frame is fixedly connected at the top of slider, rectangular plate is connected with threaded rod, screw top is equipped with handle, bottom fixedly connected magnet two;Two cylindrical bosses are fixedly connected on the upper end face of sewing template and are provided with light hole, magnet one is embedded in the bottom of light hole;Threaded rod with knob is arranged at the slider of rectangular plate to lock slider, scale line is arranged on the upper end face of mould frame, reference line is arranged at the rear end of rectangular plate.When using, according to template boss spacing, adjust slider position by scale line and reference line and lock, rotate handle to make magnet two insert light hole and magnet one adsorbed fixed template, reverse rotation can be unlocked.The utility model can be flexibly adapted to different specifications template, change mould quickly, positioning accurate, stable operation, adapt batch sewing scene.

Description

Technical Field

[0001] This utility model relates to the field of textile machinery technology, specifically a quick-change positioning pin for sewing templates. Background Technology

[0002] In the textile sewing production process, the sewing template, as a core auxiliary tool for achieving standardized and high-precision sewing, directly determines the sewing quality and production efficiency through its connection and positioning accuracy with the template frame and the efficiency of assembly and disassembly. In existing technologies, the methods for fixing the sewing template to the template frame are mainly divided into two categories: one is a rigid connection using ordinary locating pins and locating holes, where the locating pins are inserted into the corresponding holes on the template and the template frame to achieve positioning and fixation; the other is a locking and fixing method using mechanical structures such as bolts and clips.

[0003] However, both of these traditional fixing methods have obvious drawbacks: for ordinary positioning pin connection methods, the spacing is mostly fixed. When it is necessary to change to different specifications of sewing templates, the positioning pins need to be disassembled and re-drilled for installation, or a suitable template frame needs to be replaced. The operation is cumbersome and time-consuming, and cannot meet the needs of rapid switching of multiple templates in mass production.

[0004] While mechanical locking methods such as bolts and clips offer relatively high positioning accuracy, each disassembly and assembly of the template requires the use of tools such as wrenches to tighten the bolts or operate the clips one by one. This not only increases the time required for template changes but also increases the labor intensity of operators, as well as maintenance costs and the risk of production downtime.

[0005] Therefore, those skilled in the art have provided a quick-change positioning pin for sewing templates to solve the problems mentioned in the background art. Utility Model Content

[0006] The purpose of this utility model is to provide a quick-change positioning pin for sewing templates to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: A quick-change positioning pin for a sewing template includes a template frame and a sewing template. The upper surface of the template frame has a T-shaped groove extending along its length. Two T-shaped sliders are slidably arranged within the T-shaped groove. The top of each T-shaped slider extends upward beyond the upper surface of the T-shaped groove and is fixedly connected to a horizontally arranged rectangular plate. Both rectangular plates extend forward to the front of the template frame. Threaded holes are formed through the extensions of the rectangular plates. Vertically arranged screws are threaded into the threaded holes. A cylindrical magnet is fixedly connected to the bottom of the screws below the rectangular plates. Two spaced-apart cylindrical protrusions are fixedly installed on the upper surface of the sewing template. Vertically extending light holes are formed on the upper surface of the cylindrical protrusions, and a magnet is embedded in the bottom of the light holes.

[0008] As a further embodiment of this utility model: the outer diameter of the second magnet is slightly larger than the outer diameter of the screw, and the positions of the two cylindrical protrusions correspond one-to-one with the screws on the two rectangular plates.

[0009] As a further embodiment of this utility model: the upper end of the rectangular plate is provided with an internal threaded locking hole corresponding to the position of the T-shaped slider. A threaded rod is internally threaded into the internal threaded locking hole. A knob is fixedly connected to the top of the threaded rod, and the bottom of the threaded rod is threadedly connected to the T-shaped slider for locking and fixing the T-shaped slider.

[0010] As a further improvement of this utility model: the upper end face of the mold frame is engraved with scale lines along the length direction near the rear end, and the rear end of the rectangular plate is engraved with a reference line. The reference line and the scale lines cooperate to assist in adjusting the distance between the two T-shaped sliders.

[0011] As a further improvement of this utility model: the top of the screw is fixedly connected to a handle above the rectangular plate.

[0012] As a further improvement of this utility model, the inner diameter of the optical aperture is adapted to the outer diameter of the second magnet.

[0013] As a further improvement of this utility model, the first magnet and the second magnet are magnets with opposite magnetic properties.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes a T-shaped groove and a T-shaped slider design, combined with precise reference to the scale lines and baselines, to flexibly adjust the spacing between the two screws, adapting to the fixing needs of sewing templates of different specifications, thus offering strong versatility. Utilizing the adsorption properties of opposite-shaped magnets, along with the screw lifting and lowering adjustment, the installation and disassembly of sewing templates can be completed quickly without tools, significantly shortening template change time and improving production efficiency. The overall structure is simple, the operation is stable and reliable, and the maintenance cost is low, making it suitable for multi-variety, batch sewing production scenarios in the clothing, bag, and other industries, significantly reducing the operational threshold and production downtime losses. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a quick-change positioning pin for a sewing template.

[0016] Figure 2 This is a schematic diagram of the overall structure of a quick-change positioning pin for a sewing template.

[0017] Figure 3 This is a schematic diagram of the overall structure of a sewing template in a quick-change positioning pin for sewing templates.

[0018] Figure 4This is a schematic diagram of the structure of magnet 2 in a quick-change positioning pin for a sewing template.

[0019] Figure 5 This is a schematic diagram of the T-shaped slider in a quick-change positioning pin for sewing templates.

[0020] Figure 6 for Figure 2 Enlarged view of point a in the middle.

[0021] In the diagram: 1. Mold frame; 2. Sewing template; 3. T-shaped slide; 4. Scale line; 5. Cylindrical protrusion; 6. Light hole; 7. Magnet one; 8. Magnet two; 9. T-shaped slider; 10. Rectangular plate; 11. Knob; 12. Screw; 13. Handle; 14. Baseline. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figures 1-6 This embodiment provides a quick-change positioning pin for a sewing template, including a template frame 1 and a sewing template 2. The upper surface of the template frame 1 has a T-shaped groove 3 extending along its length. The inner wall of the T-shaped groove 3 is precision ground to ensure smoothness and stability during sliding. Two T-shaped sliders 9 are slidably arranged within the T-shaped groove 3. The outer walls of the T-shaped sliders 9 are tightly fitted to the inner wall of the T-shaped groove 3, ensuring both sliding flexibility and preventing lateral movement that could affect positioning accuracy. The top of each T-shaped slider 9 extends upward beyond the upper surface of the T-shaped groove 3 and is fixedly connected to a horizontally arranged rectangular plate 10 by bolts. Both rectangular plates 10 extend forward to the front of the template frame 1.

[0024] A threaded hole extends through the rectangular plate 10, with a high-precision internal thread on the inner wall of the hole. A vertically positioned screw 12 is connected to the internal thread of the threaded hole. A handle 13 is fixedly connected to the top of the screw 12 above the rectangular plate 10, and its surface has anti-slip texture for easy gripping and force application by the operator. A cylindrical magnet 8 is fixedly connected to the bottom of the screw 12 below the rectangular plate 10. The outer diameter of the magnet 8 is slightly larger than that of the screw 12, and its lower end face is a smooth plane. It is made of neodymium iron boron strong magnet material with an attraction force ≥5N, ensuring a firm locking of the sewing template 2.

[0025] Two spaced cylindrical protrusions 5 are fixedly installed on the upper end face of the sewing template 2. The cylindrical protrusions 5 are integrally formed with the sewing template 2, resulting in a stable structure and good overall integrity. The positions of the two cylindrical protrusions 5 correspond one-to-one with the screws 12 on the two rectangular plates 10. The upper end face of the cylindrical protrusions 5 is provided with vertically extending light holes 6. The inner diameter of the light holes 6 is adapted to the outer diameter of the magnet 8, ensuring that the magnet 8 can be smoothly inserted without loosening.

[0026] The upper opening of the light hole 6 has a chamfer to guide the magnet 8, allowing it to enter the light hole 6 quickly and accurately. A magnet 7 is embedded in the inner bottom of the light hole 6. Magnet 7 is a neodymium iron boron magnet with a magnetic field opposite to that of magnet 8. Its size is adapted to the inner bottom of the light hole 6, and it is fixed with adhesive to ensure a firm installation. When magnet 7 and magnet 8 are attracted, they fit completely together, maximizing the attraction area and attraction force, thus achieving rapid fixation of the sewing template 2.

[0027] The upper end of the rectangular plate 10 is provided with an internal threaded locking hole corresponding to the position of the T-shaped slider 9. The internal threaded locking hole is connected to a threaded rod, and a knob 11 is fixedly connected to the top of the threaded rod.

[0028] The upper surface of the mold frame 1 is engraved with scale lines 4 along its length near the rear end, allowing operators to visually read and adjust the distance. A reference line 14 is engraved at the rear end of the rectangular plate 10. The reference line 14 is a thin solid red line and is perpendicular to the scale lines 4. The reference line 14 works in conjunction with the scale lines 4 to provide a precise reference for adjusting the distance between the two T-shaped sliders 9, ensuring that the adjusted position of the screw 12 precisely corresponds to the cylindrical protrusion 5 on the sewing template 2.

[0029] Before use, loosen the knob 11 on the rectangular plate 10 according to the distance between the two cylindrical protrusions 5 on the sewing template 2 to be used. This will move the threaded rod upwards and release the locking of the T-shaped slider 9. The operator pushes the rectangular plate 10, causing the T-shaped slider 9 to slide along the T-shaped groove 3 of the mold frame 1. According to the scale line 4 on the mold frame 1 and the baseline 14 on the rectangular plate 10, the distance between the two T-shaped sliders 9 is precisely adjusted so that the screws 12 on the two rectangular plates 10 correspond to the positions of the two cylindrical protrusions 5 on the sewing template 2. After adjustment, rotate the knob 11 to tighten the threaded rod, and lock the T-shaped slider 9 in place through the anti-slip pad at the bottom to ensure that the distance no longer changes.

[0030] Next, place the sewing template 2 on the upper surface of the workbench, ensuring that the lower surface of the sewing template 2 is fully aligned with the upper surface of the workbench, without any gaps or tilting. The operator holds the sewing template 2 with one hand to prevent it from shifting when the magnet is attracted, and with the other hand, rotates the screw 12 through the handle 13, causing the screw 12 to move downwards along the threaded hole of the rectangular plate 10. This allows the second magnet 8 at the bottom of the screw 12 to smoothly enter the light hole 6 along the chamfered guide of the light hole 6 on the cylindrical protrusion 5, until the second magnet 8 is completely aligned with the first magnet 7 at the bottom of the light hole 6. The sewing template 2 is quickly fixed by the attraction force of the two opposite magnets. The fixing process requires no tools and is simple and efficient.

[0031] When it is necessary to replace the sewing template 2, the operator presses down on the sewing template 2 with one hand and rotates the handle 13 in the opposite direction with the other hand, causing the screw 12 to move upward, separating the second magnet 8 from the first magnet 7. After the second magnet 8 is completely detached from the light hole 6, the sewing template 2 can be removed. If the spacing of the cylindrical protrusions 5 of the new template is inconsistent with the spacing of the current T-shaped slider 9, simply repeat the above adjustment steps, adjust the position of the T-shaped slider 9 according to the spacing of the new template and lock it, and then fix the new template in the same way. The entire template replacement process is quick and convenient, effectively improving production efficiency.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A quick-change positioning pin for a sewing template, comprising a template frame (1) and a sewing template (2), characterized in that, The upper surface of the mold frame (1) is provided with a T-shaped groove (3) extending along the length direction. Two T-shaped sliders (9) are adapted to slide in the T-shaped groove (3). The top of the T-shaped sliders (9) extends upward out of the upper surface of the T-shaped groove (3) and is fixedly connected to a horizontally arranged rectangular plate (10). Both rectangular plates (10) extend forward to the front of the mold frame (1). A threaded hole is provided through the extension of the rectangular plate (10). A vertically arranged screw (12) is threaded in the threaded hole. A cylindrical magnet (8) is fixedly connected to the bottom of the screw (12) below the rectangular plate (10). Two spaced cylindrical protrusions (5) are fixedly installed on the upper surface of the sewing template (2). A vertically extending light hole (6) is provided on the upper surface of the cylindrical protrusion (5). A magnet (7) is embedded in the bottom of the light hole (6).

2. The quick-change positioning pin for a sewing template according to claim 1, characterized in that, The outer diameter of the second magnet (8) is slightly larger than the outer diameter of the screw (12), and the positions of the two cylindrical protrusions (5) correspond one-to-one with the screws (12) on the two rectangular plates (10).

3. A quick-change positioning pin for a sewing template according to claim 1, characterized in that, The upper end of the rectangular plate (10) is provided with an internal threaded locking hole corresponding to the position of the T-shaped slider (9). The internal threaded locking hole is internally threaded with a threaded rod. The top of the threaded rod is fixedly connected with a knob (11). The bottom of the threaded rod is threadedly connected to the T-shaped slider (9) for locking and fixing the T-shaped slider (9).

4. A quick-change positioning pin for a sewing template according to claim 1, characterized in that, The upper end face of the mold frame (1) is engraved with scale lines (4) along the length direction near the rear end. The rear end of the rectangular plate (10) is engraved with a reference line (14). The reference line (14) cooperates with the scale lines (4) to assist in adjusting the distance between the two T-shaped sliders (9).

5. A quick-change positioning pin for a sewing template according to claim 1, characterized in that, The top of the screw (12) is fixedly connected to a handle (13) above the rectangular plate (10).

6. A quick-change positioning pin for a sewing template according to claim 1, characterized in that, The inner diameter of the aperture (6) is adapted to the outer diameter of the magnet (8).

7. A quick-change positioning pin for a sewing template according to claim 1, characterized in that, The magnet one (7) and the magnet two (8) are magnets with different magnetic properties.

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