A stitch tension regulating device for garment sewing

Abstract

The utility model provides a trace tension regulation and control device for clothing sewing belongs to the technical field of clothing sewing, including stable component, including pass line board, the inside slide coupling of pass line board has the locating plate, the inside movable joint of pass line board has the locating column, the top fixed connection of locating column has screw rod, the outside fixed connection of screw rod has the fixed tension disc, the outside movable joint of screw rod has the dynamic tension disc, the outside thread connection of screw rod has the knob, the bottom movable joint of knob and dynamic tension disc has tension spring, the top fixed connection of locating plate has the vertical board, the right side fixed connection of vertical board has the limit component. Can effectively prevent the knob from loosening because of vibration, and the rubber pad at the bottom of the pressing plate is pressed tightly to form flexible anti-loosening at the top end of the knob by the continuous pushing of the tension spring to the sliding plate, the nut is threadedly connected outside the screw column and closely attached to the vertical plate, the limiting work of the pressing plate is facilitated, and the stability of the knob is further ensured.

Description

Technical Field

[0001] This utility model belongs to the technical field of garment sewing, specifically relating to a stitch tension control device for garment sewing. Background Technology

[0002] During the use of a sewing machine, a thread clamp is needed to adjust the tension of the sewing thread. The sewing thread passes between the fixed tension plate and the movable tension plate. By rotating the knob, the compression of the tension spring is changed, thereby adjusting the clamping force of the movable and fixed tension plates on the sewing thread, thus achieving tension adjustment.

[0003] During use, since the knob relies solely on the thread friction between itself and the screw for positioning, it is prone to reverse rotation due to the continuous vibration generated by the operation of the equipment. The loosening of the knob will cause a decrease in the preload of the tension spring, thereby reducing and losing control of the preset thread tension, which in turn leads to problems such as loose stitches and reduced sewing quality. Utility Model Content

[0004] The purpose of this invention is to provide a stitch tension control device for garment sewing, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A stitch tension control device for garment sewing includes a stabilizing component, comprising a thread guide plate, a positioning plate slidably connected inside the thread guide plate, a positioning post movably connected inside the thread guide plate, a screw fixedly connected to the top of the positioning post, a constant tension plate fixedly connected to the outside of the screw, a dynamic tension plate movably connected to the outside of the screw, a knob threadedly connected to the outside of the screw, a tension spring movably connected between the bottom of the knob and the dynamic tension plate, a vertical plate fixedly connected to the top of the positioning plate, a limit component fixedly connected to the right side of the vertical plate, and an indicating component including a scale plate fixedly connected to the left side of the vertical plate, and a rotating component disposed outside the limit component.

[0006] In a preferred embodiment of this utility model, the limiting component includes a housing, which is fixedly connected to the right side of the upright plate. A sliding plate is slidably connected to the inner wall of the housing. A lifting column is fixedly connected inside the sliding plate. A tension spring is fixedly connected between the bottom of the sliding plate and the housing. A pressure plate is fixedly connected to the top of the lifting column. A stud is fixedly connected to the left end of the pressure plate. A nut is threaded onto the outside of the stud. A rubber pad is fixedly connected to the bottom of the pressure plate.

[0007] As a preferred embodiment of this utility model, a through hole is provided inside the housing at a position corresponding to the lifting column, and the lifting column is slidably connected in the through hole.

[0008] As a preferred embodiment of this utility model, a through groove is provided inside the upright plate at the position corresponding to the stud, and the stud is slidably connected in the through groove.

[0009] In a preferred embodiment of this utility model, the rotating assembly includes a rack, which is fixedly connected to the bottom of the slide plate and slidably connected to the inner wall of the housing. A guide rod is fixedly connected to the bottom inner wall of the housing. A gear meshes with the outside of the rack, and the gear is rotatably connected to the upright plate. A rotating column is fixedly connected inside the gear, and a pointer is fixedly connected to the outside of the rotating column.

[0010] In a preferred embodiment of this utility model, a groove is provided inside the rack at a position corresponding to the guide rod, and the guide rod is slidably connected in the groove.

[0011] As a preferred embodiment of this utility model, a through hole is provided inside the upright plate at the position corresponding to the rotating column, and the rotating column is rotatably connected in the through hole.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. The stabilizing components effectively prevent the knob from loosening due to vibration. The tension spring continuously pushes the slide plate to press the rubber pad at the bottom of the pressure plate against the top of the knob, forming a flexible anti-loosening mechanism. When the nut on the stud is tightened to fit against the upright plate, the nut can be threaded onto the outside of the stud and fit tightly against the upright plate, facilitating the limiting operation of the pressure plate and further ensuring the stability of the knob.

[0013] 2. Through the set indicator component, the displacement of the knob is converted into the reading of the pointer on the dial through the rack and pinion mechanism, realizing the quantitative display of tension adjustment. The operator can quickly and accurately reproduce the setting according to the scale value, which greatly improves the adjustment efficiency. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall front structure of this utility model; Figure 2 This is a schematic diagram showing the positional relationship of the tension spring of this utility model; Figure 3 This is a schematic diagram of the overall structure of the limiting component of this utility model; Figure 4This is a schematic diagram of the overall structure of the rotating component of this utility model.

[0015] In the diagram: 10. Guide plate; 11. Positioning plate; 12. Positioning post; 13. Screw; 14. Constant tension plate; 15. Dynamic tension plate; 16. Knob; 17. Tension spring; 18. Vertical plate; 19. Limiting assembly; 191. Housing; 192. Slide plate; 193. Lifting post; 194. Tension spring; 195. Pressure plate; 196. Screw; 197. Nut; 198. Rubber pad; 20. Dial; 21. Rotating assembly; 211. Rack; 212. Guide rod; 213. Gear; 214. Rotating column; 215. Pointer. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] Example 1 Reference Figures 1-3 This is the first embodiment of the present invention. This embodiment provides a stitch tension control device for garment sewing, including a stabilizing component, including a thread guide plate 10. A positioning plate 11 is slidably connected inside the thread guide plate 10. A positioning post 12 is movably connected inside the thread guide plate 10. A screw 13 is fixedly connected to the top of the positioning post 12. A constant tension plate 14 is fixedly connected to the outside of the screw 13. A dynamic tension plate 15 is movably connected to the outside of the screw 13. A knob 16 is threadedly connected to the outside of the screw 13. A tension spring 17 is movably connected between the bottom of the knob 16 and the dynamic tension plate 15. A vertical plate 18 is fixedly connected to the top of the positioning plate 11. A limit component 19 is fixedly connected to the right side of the vertical plate 18.

[0018] The thread guide plate 10 has multiple through holes inside, which facilitates the sewing thread to pass through and adjust the tension. After the dynamic tension plate 15 and tension spring 17 are sleeved on the outside of the screw 13 and the knob 16 is threaded onto the outside of the screw 13, the knob 16 is initially installed. After the positioning plate 11 is positioned inside the thread guide plate 10, the thread guide plate 10 and positioning post 12 are installed on the sewing machine, so that the thread guide plate 10 and positioning plate 11 are in close contact with the sewing machine housing, so that the positioning plate 11 will not loosen. After limiting the positioning post 12, the sewing thread is passed through the through holes inside the thread guide plate 10, so that the sewing thread is located between the fixed tension plate 14 and the dynamic tension plate 15. By rotating the knob 16, the tension spring 17 is squeezed, thereby adjusting the tension of the sewing thread.

[0019] Furthermore, the limiting component 19 includes a housing 191, which is fixedly connected to the right side of the upright plate 18. A sliding plate 192 is slidably connected to the inner wall of the housing 191. A lifting column 193 is fixedly connected inside the sliding plate 192. A tension spring 194 is fixedly connected between the bottom of the sliding plate 192 and the housing 191. A pressure plate 195 is fixedly connected to the top of the lifting column 193. A stud 196 is fixedly connected to the left end of the pressure plate 195. A nut 197 is threaded onto the outside of the stud 196. A rubber pad 198 is fixedly connected to the bottom of the pressure plate 195. The sliding plate 192 slides vertically inside the housing 191, and the lifting column 193 drives the pressure plate 195 to move synchronously. The tension spring 194 continuously provides downward elastic force, so that the rubber pad 198 at the bottom of the pressure plate 195 is always pressed against the top of the knob 16. The stud 196 engages with the through groove on the upright plate 18, forming a rigid locking structure when the nut 197 is tightened, achieving double anti-loosening protection.

[0020] The housing 191 has a through hole at the position corresponding to the lifting column 193, and the lifting column 193 is slidably connected in the through hole. The through hole provides precise vertical movement guidance for the lifting column 193, ensuring that the pressure plate 195 always remains in a horizontal downward pressing state, and avoiding uneven locking force caused by skewness.

[0021] Preferably, a through groove is provided inside the upright plate 18 at the position corresponding to the stud 196, and the stud 196 is slidably connected in the through groove. The through groove provides space for the stud 196 to move up and down, and at the same time provides a reliable locking plane for the nut 197. When the nut 197 is tightened, it fits tightly against the surface of the upright plate 18 to form a mechanical self-locking mechanism.

[0022] In use, after fitting the dynamic tension plate 15 and tension spring 17 onto the outside of the screw 13, and threading the knob 16 onto the outside of the screw 13, the knob 16 is initially installed. After positioning the positioning plate 11 inside the thread guide plate 10, the thread guide plate 10 and positioning post 12 are installed on the sewing machine, ensuring that both the thread guide plate 10 and positioning plate 11 fit snugly against the sewing machine housing, preventing the positioning plate 11 from loosening. After limiting the positioning post 12, the sewing thread is passed through the through hole inside the thread guide plate 10, so that the sewing thread is positioned between the constant tension plate 14 and the dynamic tension plate 15. Between the discs 15, the tension of the sewing thread is adjusted by rotating the knob 16 to compress the tension spring 17. After rotating the knob 16, the nut 197 is rotated to move it away from the upright plate 18, thereby releasing the limit on the pressure plate 195. Under the elastic action of the tension spring 194, the pressure plate 195 moves downward, so that the rubber pad 198 fits tightly with the knob 16. The nut 197 is rotated again to fit it with the upright plate 18, limiting the pressure plate 195 after it moves downward, thus completing the limiting work of the knob 16 and preventing the knob 16 from loosening due to vibration.

[0023] Example 2 Reference Figure 4 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides an indicating component, which includes a dial 20. The dial 20 is fixedly connected to the left side of the upright plate 18, and a rotating component 21 is provided on the outside of the limiting component 19.

[0024] Furthermore, the rotating assembly 21 includes a rack 211, which is fixedly connected to the bottom of the slide plate 192 and slidably connected to the inner wall of the housing 191. A guide rod 212 is fixedly connected to the bottom inner wall of the housing 191. A gear 213 meshes with the outside of the rack 211 and is rotatably connected to the upright plate 18. A rotating column 214 is fixedly connected inside the gear 213 and a pointer 215 is fixedly connected outside the rotating column 214. The rack 211 moves synchronously with the slide plate 192, and the guide rod 212 ensures the accuracy of linear motion. The gear 213 converts the linear displacement of the rack 211 into rotational motion, which drives the pointer 215 to rotate through the rotating column 214. The pointer 215 accurately displays the adjustment position of the knob 16 on the dial 20, realizing the visual reading of the tension value.

[0025] The rack 211 has a groove at the position corresponding to the guide rod 212, and the guide rod 212 is slidably connected in the groove, which facilitates the smooth lifting and lowering of the rack 211.

[0026] The upright plate 18 has a through hole at the position corresponding to the rotating column 214, and the rotating column 214 is rotatably connected in the through hole. The through hole provides stable rotational support for the rotating column 214, ensuring that the pointer 215 rotates smoothly and that the scale reading is accurate and reliable.

[0027] When in use, when the knob 16 is rotated to adjust its height, the pressure plate 195 moves downward. This displacement is transmitted to the slide plate 192 through the lifting column 193, which drives the rack 211 fixedly installed at the bottom of the slide plate 192 to move precisely vertically along the guide rod 212 fixed on the housing 191. The movement of the rack 211 drives the gear 213 meshing with it to rotate. The rotation of the gear 213 is transmitted to the pointer 215 fixed at the front end of the rotating column 214 through its internal rotating column 214. By observing and recording the value indicated by the pointer 215 on the dial 20, the operator can memorize the position of the knob 16 and quickly reset it.

[0028] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A stitch tension regulating device for garment sewing, characterized in that: include, The stabilizing components include a wire guide plate (10), a positioning plate (11) is slidably connected inside the wire guide plate (10), a positioning post (12) is movably connected inside the wire guide plate (10), a screw (13) is fixedly connected to the top of the positioning post (12), a constant tension plate (14) is fixedly connected to the outside of the screw (13), a dynamic tension plate (15) is movably connected to the outside of the screw (13), a knob (16) is threadedly connected to the outside of the screw (13), a tension spring (17) is movably connected between the bottom of the knob (16) and the dynamic tension plate (15), a vertical plate (18) is fixedly connected to the top of the positioning plate (11), and a limit assembly (19) is fixedly connected to the right side of the vertical plate (18). The indicating component includes a dial (20) which is fixedly connected to the left side of the upright plate (18), and a rotating component (21) is provided on the outside of the limiting component (19).

2. The stitch tension regulating device for garment sewing according to claim 1, characterized in that: The limiting component (19) includes a housing (191), which is fixedly connected to the right side of the upright plate (18). A sliding plate (192) is slidably connected to the inner wall of the housing (191). A lifting column (193) is fixedly connected inside the sliding plate (192). A tension spring (194) is fixedly connected between the bottom of the sliding plate (192) and the housing (191). A pressure plate (195) is fixedly connected to the top of the lifting column (193). A stud (196) is fixedly connected to the left end of the pressure plate (195). A nut (197) is threaded onto the outside of the stud (196). A rubber pad (198) is fixedly connected to the bottom of the pressure plate (195).

3. The stitch tension regulating device for garment sewing according to claim 2, characterized in that: The housing (191) has a through hole at the position corresponding to the lifting column (193), and the lifting column (193) is slidably connected in the through hole.

4. The stitch tension regulating device for garment sewing according to claim 2, characterized in that: The interior of the upright plate (18) is provided with a through groove at the position corresponding to the stud (196), and the stud (196) is slidably connected in the through groove.

5. The stitch tension regulating device for garment sewing according to claim 2, characterized in that: The rotating assembly (21) includes a rack (211) which is fixedly connected to the bottom of the slide plate (192) and slidably connected to the inner wall of the housing (191). A guide rod (212) is fixedly connected to the bottom inner wall of the housing (191). A gear (213) meshes with the outside of the rack (211). The gear (213) is rotatably connected to the upright plate (18). A rotating column (214) is fixedly connected inside the gear (213), and a pointer (215) is fixedly connected outside the rotating column (214).

6. The stitch tension regulating device for garment sewing according to claim 5, characterized in that: The rack (211) has a groove at the position corresponding to the guide rod (212), and the guide rod (212) is slidably connected in the groove.

7. The stitch tension regulating device for garment sewing according to claim 5, characterized in that: The interior of the upright plate (18) is provided with a through hole at the position corresponding to the rotating column (214), and the rotating column (214) is rotatably connected in the through hole.

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