Bird nest prevention device for a sewing machine

Abstract

The utility model discloses a kind of bird nest prevention devices of sewing machine, it is related to sewing machine equipment technical field, including sewing machine main body and hooking component, the lower end of sewing machine main body is fixedly provided with mounting bracket, the upper end inboard of mounting bracket is fixedly provided with placing rack, the lower end inboard of sewing machine main body is fixedly provided with hooking component, hooking component includes fixedly set inboard telescopic cylinder one of sewing machine, the upper side front end of telescopic cylinder one is fixedly provided with mounting plate, the front end inboard of mounting plate is provided with contraction mouth, the front end upper side of mounting plate is fixedly provided with elastic clamping plate, can effectively reduce the labor intensity of worker, improve portability, thread can be directly fallen into collection box through connecting pipe, worker can pull handle, through the mutual sliding between sliding block and sliding slot, collection box is taken out, inside thread is uniformly handled, can effectively save time.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine equipment technology, specifically to a bird nest prevention device for sewing machines. Background Technology

[0002] After the sewing machine finishes sewing the fabric, the bobbin thread and the top thread need to be cut before replacing it with another piece of fabric. If the ends of the bobbin thread or the top thread are left too long, they will easily wrinkle and bunch up at the seam when sewing the next piece of fabric, forming a clump of thread, similar to the structure of a bird's nest.

[0003] According to a sewing machine anti-bird nest device with announcement number 201810366639.X, which relates to the field of sewing machine equipment technology, it includes a mounting frame, a drive source A, a drive source B, a thread cutting assembly, and a thread hooking assembly, wherein the thread cutting assembly, the thread hooking assembly, drive source A, and drive source B are respectively mounted on the mounting frame.

[0004] Regarding the aforementioned solutions, the above method involves cutting the surface thread with a cutting knife, but it cannot handle situations where the surface thread is too loose, which can easily lead to the surface thread not being cut through or the thread remaining on the garment being too long. Utility Model Content

[0005] The purpose of this invention is to provide a bird nest prevention device for sewing machines to solve the technical problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bird nest prevention device for a sewing machine, comprising a sewing machine body and a hooking component, wherein a mounting frame is fixedly provided at the lower end of the sewing machine body, and a placement frame is fixedly provided on the inner side of the upper end of the mounting frame;

[0007] A hooking component is fixedly installed on the inner side of the lower end of the sewing machine body. The hooking component includes a telescopic cylinder fixedly installed on the inner side of the sewing machine body. A mounting plate is fixedly installed on the upper front end of the telescopic cylinder. A contraction opening is opened on the inner side of the front end of the mounting plate. An elastic clamping plate is fixedly installed on the upper side of the front end of the mounting plate.

[0008] A shearing component is fixedly installed at the lower end of the mounting plate, an adsorption component is fixedly installed at the bottom end of the mounting frame, and a collection component is movably installed at the upper end of the placement frame.

[0009] Preferably, one end of the telescopic cylinder is set at an inclined angle, and the other end is aligned with the needle part of the sewing machine body. The mounting plate and the elastic clamp are both set in a "Z" shape, and the elastic clamp is tightly fitted to the front end of the mounting plate.

[0010] Preferably, the hooking component further includes a push block fixedly disposed at the front end of the telescopic cylinder, a hook is fixedly disposed on the inner side of the front end of the push block, and an adsorption port is provided on the inner side of the front end of the mounting plate;

[0011] Furthermore, the length of the hook is greater than the length of the inner side of the mounting plate.

[0012] Preferably, the shearing component includes a telescopic cylinder two fixedly disposed at the left end of the telescopic cylinder one, a fixing plate fixedly disposed at the left end of the mounting plate, an arc-shaped groove opened on the inner side of the right end of the fixing plate, a push plate movably disposed at the right end of the fixing plate, a movable wheel rotatably disposed at the left end of the push plate, and a serrated blade fixedly disposed at the front end of the push plate.

[0013] Preferably, the push plate is arc-shaped, the middle position of the push plate is hinged to the front end of the telescopic cylinder, and the upper end of the push plate is movably disposed inside the arc-shaped groove through the movable wheel.

[0014] Preferably, the adsorption component includes a negative pressure air pump fixedly disposed at the bottom of the mounting frame, one end of the negative pressure air pump is fixedly disposed with a connecting pipe, and one end of the connecting pipe is fixedly connected to the adsorption port.

[0015] Preferably, the collecting component includes a slider fixedly disposed on the upper end of the placement rack, a collecting box slidably disposed on the upper end of the placement rack, a groove being provided on the inner side of the lower end of the collecting box, and a handle being fixedly disposed on the front end of the collecting box;

[0016] The slider matches the groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] The anti-bird nest device of this sewing machine, during routine sewing, uses a telescopic cylinder one to drive a pusher block to extend the thread hook, simultaneously squeezing and opening the elastic clamping plate. This allows the thread hook to catch the thread end. As the thread end is hooked back, the elastic clamping plate returns to its downward pressure, thus firmly clamping the thread end and ensuring sufficient tension. The telescopic cylinder two, hinged to the pusher plate, drives the pusher plate along the inner side of the arc-shaped groove to push the serrated blade, thereby cutting the thread end held by the elastic clamping plate. This effectively cuts the thread end from the most vulnerable point. The bottom edge is trimmed to prevent excessively long threads from remaining on the garment, avoiding unnecessary manual processing and wasting manpower and time. The negative pressure air pump can absorb and collect the threads held by the elastic clamp at the top of the suction port through the connecting tube, and process them uniformly. This effectively reduces the labor intensity of workers and improves portability. The threads can fall directly into the collection box through the connecting tube. Workers can pull the handle and remove the collection box by sliding the slider and the chute, and process the threads inside uniformly, which can effectively save time. Attached Figure Description

[0019] Figure 1 This is an axonometric view of the present invention;

[0020] Figure 2 This is an axonometric view of the present invention;

[0021] Figure 3 This is an enlarged view of the hooking component of this utility model;

[0022] Figure 4 This is a partial enlarged view of the hooking component of this utility model;

[0023] Figure 5 This is an enlarged view of the shearing component of this utility model;

[0024] Figure 6 This is a front view of the present invention.

[0025] In the diagram: 1. Sewing machine body; 11. Mounting frame; 12. Placement rack;

[0026] 2. Hooking component; 21. Telescopic cylinder one; 22. Mounting plate; 23. Retractable port;

[0027] 24. Elastic clamp; 25. Push block; 26. Wire hook; 27. Suction port;

[0028] 3. Cutting component; 31. Telescopic cylinder II; 32. Fixing plate; 33. Arc groove; 34. Push plate;

[0029] 35. Playing wheels; 36. Serrated blade;

[0030] 4. Adsorption component; 41. Negative pressure air pump; 42. Connecting pipe;

[0031] 5. Collection component; 51. Slider; 52. Collection box; 53. Slide; 54. Handle. 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. 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.

[0033] Please see Figures 1-3 In this invention, a technical solution is provided: a bird nest prevention device for a sewing machine, comprising a sewing machine body 1 and a hooking component 2, wherein a mounting frame 11 is fixedly provided at the lower end of the sewing machine body 1, and a placement frame 12 is fixedly provided on the inner side of the upper end of the mounting frame 11;

[0034] A hooking component 2 is fixedly installed on the inner side of the lower end of the sewing machine body 1. The hooking component 2 includes a telescopic cylinder 21 fixedly installed on the inner side of the sewing machine body 1. A mounting plate 22 is fixedly installed on the upper front end of the telescopic cylinder 21. A shrinkage opening 23 is opened on the inner side of the front end of the mounting plate 22. An elastic clamping plate 24 is fixedly installed on the upper side of the front end of the mounting plate 22.

[0035] The telescopic cylinder 21 is set at an inclined angle, and one end is aligned with the needle part of the sewing machine body 1. The mounting plate 22 and the elastic clamping plate 24 are both set in a "Z" shape, and the elastic clamping plate 24 is tightly attached to the front end of the mounting plate 22.

[0036] Specifically, the sewing machine body 1 provides space for fixing and installing the telescopic cylinder 21. Through the fit between the elastic clamp 24 and the mounting plate 22, the hooked thread end can be clamped to prevent it from falling off, and the shrink opening 23 can provide space for the inner thread end 26 to move and be placed.

[0037] exist Figures 1-4 In the middle: the hooking component 2 also includes a push block 25 fixedly installed at the front end of the telescopic cylinder 21, a hook 26 fixedly installed on the inner side of the front end of the push block 25, and an adsorption port 27 opened on the inner side of the front end of the mounting plate 22.

[0038] Furthermore, the length of the hook 26 is greater than the length of the inner side of the mounting plate 22.

[0039] Specifically, the length of the hook 26 is greater than the length of the inner side of the mounting plate 22, so that a section of the hook head can stay inside the contraction opening 23. This effectively ensures that the direction of the push block 25 does not deviate. When the telescopic cylinder 21 drives the push block 25 to push the hook 26 out, it can squeeze and open the elastic clamp 24, allowing the hook 26 to hook the end of the line. When the end of the line is hooked back, the elastic clamp 24 restores downward pressure, thereby firmly clamping the end of the line and ensuring that the end of the line has sufficient tension.

[0040] exist Figures 1-3 and Figure 5 In the middle: A shearing component 3 is fixedly installed at the lower end of the mounting plate 22. The shearing component 3 includes a telescopic cylinder 31 fixedly installed at the left end of the telescopic cylinder 21. A fixing plate 32 is fixedly installed at the left end of the mounting plate 22. An arc-shaped groove 33 is opened on the inner side of the right end of the fixing plate 32. A push plate 34 is movably installed at the right end of the fixing plate 32. A movable wheel 35 is rotatably installed at the left end of the push plate 34. A serrated blade 36 is fixedly installed at the front end of the push plate 34.

[0041] The push plate 34 is arc-shaped, and the middle position of the push plate 34 is hinged to the front end of the telescopic cylinder 31. The upper end of the push plate 34 is movably disposed inside the arc-shaped groove 33 through the movable wheel 35.

[0042] Specifically, the telescopic cylinder 31 is hinged to the push plate 34, which drives the push plate 34 to push the serrated blade 36 along the inner side of the arc groove 33, thereby cutting the thread held by the elastic clamp 24. This effectively cuts the thread from the bottom, preventing the thread left on the garment from being too long and avoiding secondary manual processing, which would otherwise waste manpower and time.

[0043] exist Figures 1-3 and Figure 5 In the middle: an adsorption component 4 is fixedly installed at the bottom of the mounting frame 11. The adsorption component 4 includes a negative pressure air pump 41 fixedly installed at the bottom of the mounting frame 11. A connecting pipe 42 is fixedly installed at one end of the negative pressure air pump 41, and one end of the connecting pipe 42 is fixedly connected to the adsorption port 27.

[0044] Specifically, the negative pressure air pump 41 can adsorb and recycle the wire ends held by the elastic clamp 24 at the upper end of the adsorption port 27 through the connecting pipe 42, and process them uniformly, which can effectively reduce the labor intensity of workers and improve portability.

[0045] exist Figures 1-3 and Figure 5In the middle: A collection component 5 is movably provided at the upper end of the placement rack 12. The collection component 5 includes a slider 51 fixedly provided at the upper end of the placement rack 12. A collection box 52 is slidably provided at the upper end of the placement rack 12. A groove 53 is provided on the inner side of the lower end of the collection box 52. A handle 54 is fixedly provided at the front end of the collection box 52.

[0046] The slider 51 is matched with the groove 53.

[0047] Specifically, the thread ends attracted by the connecting tube 42 can fall directly into the collection box 52. At the same time, the worker can pull the handle 54 and remove the collection box 52 by sliding the slider 51 and the chute 53. The thread ends inside can then be processed in a unified manner, which can effectively save time.

[0048] During routine fabric sewing, the telescopic cylinder 21 can drive the push block 25 to push the hook 26 out, while simultaneously squeezing and opening the elastic clamping plate 24, so that the hook 26 can hook the thread end. When the thread end is hooked back, the elastic clamping plate 24 restores downward pressure, thereby firmly clamping the hook 26.

[0049] Furthermore, the telescopic cylinder 31, through its hinged connection with the push plate 34, drives the push plate 34 to push the serrated blade 36 along the inner side of the arc groove 33, thereby cutting the wire end held by the elastic clamp 24. It can effectively cut the wire end from the bottom side. The negative pressure air pump 41 can adsorb and recover the wire end held by the elastic clamp 24 at the upper end of the adsorption port 27 through the connecting pipe 42. The wire end can fall directly into the collection box 52 through the connecting pipe 42.

[0050] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0051] Electrical equipment (including but not limited to telescopic cylinder one, telescopic cylinder two, negative pressure cylinder, sewing machine body, etc.) is safely powered by an external power source and controlled by a control box. The contents not described in detail in this instruction belong to the prior art known to those skilled in the art.

[0052] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bird nest prevention device for a sewing machine, comprising a sewing machine body (1) and a hooking component (2), wherein a mounting frame (11) is fixedly provided at the lower end of the sewing machine body (1), and a placement frame (12) is fixedly provided on the inner side of the upper end of the mounting frame (11); characterized in that ； A hooking component (2) is fixedly installed on the inner side of the lower end of the sewing machine body (1). The hooking component (2) includes a telescopic cylinder (21) fixedly installed on the inner side of the sewing machine body (1). A mounting plate (22) is fixedly installed on the upper front end of the telescopic cylinder (21). A shrinkage opening (23) is opened on the inner side of the front end of the mounting plate (22). An elastic clamp (24) is fixedly installed on the upper side of the front end of the mounting plate (22). The lower end of the mounting plate (22) is fixedly provided with a cutting component (3), the bottom end of the mounting frame (11) is fixedly provided with an adsorption component (4), and the upper end of the placement frame (12) is movably provided with a collection component (5).

2. The anti-bird nest device for a sewing machine according to claim 1, characterized in that: One end of the telescopic cylinder (21) is set at an inclined angle, and the other end is positioned relative to the needle part of the sewing machine body (1). The mounting plate (22) and the elastic clamp (24) are both set in a "Z" shape, and the elastic clamp (24) is tightly fitted to the front end of the mounting plate (22).

3. The anti-bird nest device for a sewing machine according to claim 2, characterized in that: The hooking component (2) also includes a push block (25) fixedly disposed at the front end of the telescopic cylinder (21), a line hook (26) is fixedly disposed on the inner side of the front end of the push block (25), and an adsorption port (27) is opened on the inner side of the front end of the mounting plate (22). Furthermore, the length of the hook (26) is greater than the length of the inner side of the mounting plate (22).

4. The anti-bird nest device for a sewing machine according to claim 3, characterized in that: The shearing component (3) includes a telescopic cylinder two (31) fixedly installed at the left end of the telescopic cylinder one (21), a fixing plate (32) fixedly installed at the left end of the mounting plate (22), an arc groove (33) is opened on the inner side of the right end of the fixing plate (32), a push plate (34) is movably installed at the right end of the fixing plate (32), a movable wheel (35) is rotatably installed at the left end of the push plate (34), and a serrated blade (36) is fixedly installed at the front end of the push plate (34).

5. The anti-bird nest device for a sewing machine according to claim 4, characterized in that: The push plate (34) is arc-shaped. The middle position of the push plate (34) is hinged to the front end of the telescopic cylinder (31), and the upper end of the push plate (34) is movably disposed inside the arc-shaped groove (33) through the movable wheel (35).

6. The anti-bird nest device for a sewing machine according to claim 3, characterized in that: The adsorption component (4) includes a negative pressure air pump (41) fixedly installed at the bottom of the mounting frame (11). A connecting pipe (42) is fixedly installed at one end of the negative pressure air pump (41), and one end of the connecting pipe (42) is fixedly connected to the adsorption port (27).

7. The anti-bird nest device for a sewing machine according to claim 1, characterized in that: The collecting component (5) includes a slider (51) fixedly mounted on the upper end of the placement rack (12), a collecting box (52) is slidably mounted on the upper end of the placement rack (12), a groove (53) is provided on the inner side of the lower end of the collecting box (52), and a handle (54) is fixedly mounted on the front end of the collecting box (52). The slider (51) matches the groove (53).

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