Needle position adjusting mechanism of double-needle machine

Abstract

The utility model relates to the technical field of double-needle machines, in particular to a needle position adjusting mechanism of a double-needle machine, which comprises a double-needle sewing machine, and a double-needle assembly is mounted on a machine head of the double-needle sewing machine. The double-needle assembly comprises a mounting column, a round hole is formed in the inner side of the mounting column, a threaded hole is connected to the outer side of the round hole in a penetrating mode, a threaded column is screwed to the inner side of the threaded hole, a cylinder is fixedly connected to the inner side end of the threaded column, and a rotating seat is fixedly connected to the outer side end of the threaded column. By means of the double-needle-head assembly, the steel needle is installed on the inner side of the long installation groove of the installation column in an inserted mode through the needle base of the steel needle, the installation position of the steel needle is accurately positioned, the cylinder is used for clamping and limiting the needle base, the steel needle can be stably installed on the lower side of the installation column, the installation position of the steel needle is stable and cannot deviate due to stress, and therefore the steel needle can be stably installed on the lower side of the installation column. In addition, the supporting rod is arranged on the outer side of the threaded column, the guide ring is installed at the end of the supporting rod, the guide effect in the steel needle wire inlet process can be achieved, and practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of double-needle machine technology, and in particular to a needle position adjustment mechanism for a double-needle machine. Background Technology

[0002] A double-needle sewing machine is a sewing device with two needles and two synchronously moving stitches.

[0003] The utility model patent with authorization announcement number CN215251619U discloses a needle position adjustment mechanism for a double needle machine, including a mounting plate. The top surface of the mounting plate has limit grooves on both sides, and a connecting column is provided through the limit grooves. The bottom end of the connecting column is provided with a fixing block, and the bottom surface of the fixing block is provided with a sleeve. The sleeve is provided with a needle seat, and a needle is installed on the needle seat. The two sides of the mounting plate are provided with second threaded holes.

[0004] The aforementioned patent uses a threaded rod to adjust the limiting plate to abut and limit the needle seat. This installation method is not stable enough, and there is a risk of the needle tip deviating when subjected to force. In addition, it is difficult to ensure the accuracy of the needle tip's installation and positioning during installation. To solve the shortcomings of the above technology, we propose a needle position adjustment mechanism for a dual-needle machine. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a needle position adjustment mechanism for a double-needle machine.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A needle position adjustment mechanism for a double-needle sewing machine includes a double-needle sewing machine head with a double-needle head assembly. The double-needle head assembly includes a mounting post and a mounting base. A circular hole is formed on the inner side of the mounting post, and a threaded hole is connected through the outer side of the circular hole. A threaded post is screwed onto the inner side of the threaded hole. A cylinder is fixedly connected to the inner end of the threaded post, and a rotating seat is fixedly connected to the outer end of the threaded post. A support rod is fixedly connected to the outer side of the rotating seat, and a guide ring is fixedly installed on the outer end of the support rod.

[0008] Furthermore, a steel needle is provided on the lower side of the mounting column, a needle seat is fixedly connected to the upper side of the steel needle, and an installation groove is provided on the lower side of the mounting column.

[0009] By adopting the above technical solution, the steel needle is inserted into the inner side of the mounting slot through the needle seat, and its installation position is accurately positioned and corresponds to the mounting slot.

[0010] Furthermore, a limiting hole is provided on the upper side of the needle holder, the needle holder is fitted into the inner side of the mounting groove, and a wire hole is provided at the lower end of the steel needle.

[0011] Furthermore, a limiting hole is provided on the upper side of the steel needle, and the inner diameter of the limiting hole is adapted to the outer diameter of the cylinder.

[0012] By adopting the above technical solution, when the threaded column is screwed into the inside of the threaded hole, and then the cylindrical part of its inner end is inserted into the inside of the limiting hole, the needle seat can be snapped into the inside of the mounting slot, thus achieving a stable installation of the steel needle.

[0013] Furthermore, a rotating blade is fixedly installed on the outer wall of the rotating seat.

[0014] Furthermore, the mounting base is screwed onto the lower end of the head of the double-needle sewing machine.

[0015] By adopting the above technical solution, the mounting base installs the entire double needle assembly at the lower end of the double needle sewing machine head, which facilitates disassembly and maintenance in the future.

[0016] Furthermore, a shaft seat is symmetrically fixedly installed on the lower side of the mounting base, a threaded rod is rotatably installed on the inner side of the shaft seat, and a slider is symmetrically screwed onto the threaded rod.

[0017] Furthermore, the threads on the threaded rod are symmetrically arranged along the middle position, the bottom of the slider is fixedly connected to the upper part of the mounting post, and the two ends of the threaded rod are provided with rotating grooves, which are rotatably engaged with the inner side of the shaft seat.

[0018] By adopting the above technical solution, the threads on the threaded rod are symmetrically arranged along the middle position, so that when the threaded rod is rotated, the symmetrically screwed sliders on it can move towards each other to adjust the distance between the two sliders.

[0019] Furthermore, a central adjusting ring is fixedly installed at the middle position of the threaded rod, and the central adjusting ring has several adjusting holes.

[0020] Furthermore, several of the aforementioned adjustment holes are equidistantly distributed along the circumference of the outer wall of the central adjustment ring.

[0021] By adopting the above technical solution, the opening of the adjustment hole facilitates the insertion of an auxiliary round rod into the adjustment hole, which in turn facilitates the rotation of the threaded rod by turning the central adjustment ring with the auxiliary round rod, thereby adjusting the distance between the two sliders.

[0022] Compared with related technologies, the needle position adjustment mechanism of the double-needle machine proposed in this utility model has the following beneficial effects:

[0023] In this utility model, the needle position adjustment mechanism of a double-needle machine is provided. In the double-needle head assembly, the steel needle is inserted into the mounting slot of the mounting column through its needle seat, so that the installation position of the steel needle is accurately positioned. To ensure the stability of the installation position of the steel needle, a threaded post is screwed into the side of the mounting column. When the threaded post is screwed into the side of the mounting column, the cylinder at its inner end can be inserted into the limiting hole of the needle seat, so that the steel needle can be stably installed on the lower side of the mounting column and its installation position is stable and will not be deviated due to force.

[0024] In addition, a support rod is provided on the outside of the threaded post, and a guide ring is installed at the end of the support rod, which can provide guidance during the wire insertion process of the steel needle and improve its practicality. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the needle position adjustment mechanism of a double-needle machine proposed in this utility model;

[0026] Figure 2 This is a three-dimensional structural diagram of the dual-needle assembly;

[0027] Figure 3 Schematic diagram of the three-dimensional disassembled structure of the dual-needle assembly Figure 1 ;

[0028] Figure 4 Schematic diagram of the three-dimensional disassembled structure of the dual-needle assembly Figure 2 ;

[0029] Figure 5 Schematic diagram of the three-dimensional disassembled structure of the dual-needle assembly Figure 3 ;

[0030] Figure 6 Schematic diagram of the three-dimensional disassembled structure of the dual-needle assembly Figure 4 .

[0031] In the diagram: 1. Double-needle sewing machine; 2. Double needle assembly; 21. Mounting base; 22. Shaft seat; 23. Threaded rod; 24. Rotary groove; 25. Slider; 26. Central adjusting ring; 27. Adjusting hole; 28. Mounting post; 29. ​​Round hole; 210. Threaded hole; 211. Threaded post; 212. Cylindrical column; 213. Rotating seat; 214. Rotating blade; 215. Support rod; 216. Guide ring; 217. Mounting groove; 218. Steel needle; 219. Needle seat; 220. Limiting hole; 221. Wire hole. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] Reference Figure 1-6 A needle position adjustment mechanism for a double-needle sewing machine includes a double-needle sewing machine 1, with a double-needle head assembly 2 mounted on the machine head of the double-needle sewing machine 1; the double-needle head assembly 2 includes a mounting post 28 and a mounting base 21, with a circular hole 29 on the inner side of the mounting post 28, and a threaded hole 210 passing through the outer side of the circular hole 29, with a threaded post 211 screwed onto the inner side of the threaded hole 210, a cylinder 212 fixedly connected to the inner end of the threaded post 211, a rotating seat 213 fixedly connected to the outer end of the threaded post 211, a support rod 215 fixedly connected to the outer side of the rotating seat 213, and a guide ring 216 fixedly mounted on the outer end of the support rod 215.

[0034] In this embodiment, the mounting base 21 is screwed onto the lower end of the head of the double-needle sewing machine 1. A shaft seat 22 is symmetrically fixedly mounted on the lower side of the mounting base 21. A threaded rod 23 is rotatably mounted on the inner side of the shaft seat 22. A slider 25 is symmetrically screwed onto the threaded rod 23. The threads on the threaded rod 23 are symmetrically arranged along the middle position. The bottom of the slider 25 is fixedly connected to the upper part of the mounting post 28. Rotary grooves 24 are provided at both ends of the threaded rod 23. The rotary grooves 24 are rotatably engaged with the inner side of the shaft seat 22.

[0035] With the above structure, rotating the threaded rod 23 will cause the symmetrically arranged threads on the threaded rod 23 to drive the sliders 25 on both sides to slide towards each other on the underside of the mounting base 21.

[0036] In this embodiment, a central adjusting ring 26 is fixedly installed at the middle position of the threaded rod 23. The central adjusting ring 26 has a plurality of adjusting holes 27, which are equidistantly distributed along the outer circumference of the central adjusting ring 26.

[0037] With the above structure, when it is necessary to adjust and drive the threaded rod 23 to rotate, instead of directly driving the threaded rod 23 to rotate by hand, the auxiliary round rod can be inserted into the inner side of the adjustment hole 27, and the side can drive the central adjustment ring 26 to rotate, thereby driving the threaded rod 23 to rotate synchronously.

[0038] In this embodiment, a steel needle 218 is provided on the lower side of the mounting post 28, and a needle seat 219 is fixedly connected to the upper side of the steel needle 218. An installation groove 217 is opened on the lower side of the mounting post 28, and a limiting hole 220 is opened on the upper side of the needle seat 219. The needle seat 219 is inserted into the inner side of the installation groove 217. A wire hole 221 is opened at the lower end of the steel needle 218, and a limiting hole 220 is opened on the upper side of the steel needle 218. The inner diameter of the limiting hole 220 is adapted to the outer diameter of the cylinder 212.

[0039] With the above structure, the mounting groove 217 on the lower side of the mounting post 28 matches the needle holder 219, thereby making the mounting position of the needle holder 219 accurate and consistent with the opening position of the mounting groove 217. The wire hole 221 on the steel needle 218 is used to guide the sewing thread.

[0040] In this embodiment, a rotating plate 214 is fixedly installed on the outer wall of the rotating base 213.

[0041] With the above structure, the setting of the rotating plate 214 makes it easy to rotate the rotating base 213 by twisting the rotating plate 214.

[0042] In this invention, when installing the steel needle 218, the needle seat 219 on the upper side of the steel needle 218 is inserted into the inner side of the mounting groove 217. Subsequently, rotating the rotating seat 213 drives the threaded column 211 to be screwed into the inner side of the threaded hole 210. At this time, the cylinder 212 at the inner end of the threaded column 211 is simultaneously inserted into the inner side of the mounting groove 217 and into the inner side of the limiting hole 220 opened on the needle seat 219, thus achieving stable installation of the steel needle 218. In daily use, when it is necessary to adjust the distance between the two steel needles 218, the auxiliary rod is inserted into the inner side of the adjustment hole 27. The side can drive the middle adjustment ring 26 to rotate, which in turn drives the threaded rod 23 to rotate. Then, the sliders 25 on both sides will move the lower steel needles 218 towards each other, so that the distance between the two steel needles 218 can be adjusted.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model 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 basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0044] 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 needle position adjusting mechanism of a double needle machine, characterized by, Includes a double-needle sewing machine (1), wherein a double-needle assembly (2) is mounted on the head of the double-needle sewing machine (1); The dual-needle assembly (2) includes a mounting post (28) and a mounting base (21). The mounting post (28) has a circular hole (29) on its inner side. A threaded hole (210) is connected through the outer side of the circular hole (29). A threaded post (211) is screwed into the inner side of the threaded hole (210). A cylinder (212) is fixedly connected to the inner end of the threaded post (211). A rotating seat (213) is fixedly connected to the outer end of the threaded post (211). A support rod (215) is fixedly connected to the outer side of the rotating seat (213). A guide ring (216) is fixedly installed at the outer end of the support rod (215).

2. A needle position adjusting mechanism of a double needle machine according to claim 1, wherein A steel needle (218) is provided on the lower side of the mounting post (28), and a needle seat (219) is fixedly connected to the upper side of the steel needle (218). An installation slot (217) is provided on the lower side of the mounting post (28).

3. A needle position adjusting mechanism of a double needle machine according to claim 2, wherein The needle holder (219) has a limiting hole (220) on its upper side. The needle holder (219) is inserted into the inner side of the mounting groove (217). The lower end of the steel needle (218) has a wire hole (221).

4. A needle position adjusting mechanism of a double needle machine according to claim 2, wherein The steel needle (218) has a limiting hole (220) on its upper side, and the inner diameter of the limiting hole (220) is adapted to the outer diameter of the cylinder (212).

5. The needle position adjusting mechanism of a double needle machine according to claim 1, wherein A rotating plate (214) is fixedly installed on the outer wall of the rotating seat (213).

6. The needle position adjustment mechanism of a double-needle machine according to claim 1, characterized in that, The mounting base (21) is screwed onto the lower end of the head of the double needle sewing machine (1).

7. A needle position adjusting mechanism of a double needle machine according to claim 1, wherein A bearing seat (22) is symmetrically fixedly installed on the lower side of the mounting base (21). A threaded rod (23) is rotatably installed on the inner side of the bearing seat (22). A slider (25) is symmetrically screwed onto the threaded rod (23).

8. A needle position adjusting mechanism of a double needle machine according to claim 7, wherein The threaded rod (23) has threads symmetrically arranged along the middle position. The bottom of the slider (25) is fixedly connected to the upper part of the mounting column (28). The threaded rod (23) has rotating grooves (24) at both ends. The rotating grooves (24) are rotatably engaged with the inner side of the bearing seat (22).

9. A needle position adjusting mechanism of a double needle machine according to claim 7, wherein A central adjustment ring (26) is fixedly installed at the middle position of the threaded rod (23), and a number of adjustment holes (27) are provided on the central adjustment ring (26).

10. A needle position adjusting mechanism of a double needle machine according to claim 9, wherein Several of the aforementioned adjustment holes (27) are equidistantly distributed along the outer circumference of the central adjustment ring (26).

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