Thread trimming device of sewing machine

Abstract

The utility model relates to the technical field of clothing manufacturing equipment, and discloses a sewing machine thread trimming device which comprises a machine body, a first pedal is arranged at the bottom of the machine body, a first rotating shaft is fixedly connected to the middle of the first pedal, a first bevel gear is fixedly connected to the right end of the first rotating shaft, a second rotating shaft is arranged at the right end of the machine body, and a second bevel gear is fixedly connected to the right end of the second rotating shaft. The upper end and the lower end of the second rotating shaft are fixedly connected with second bevel gears, the first bevel gear is in meshed connection with the lower end of the second bevel gear, the middle of the machine body is rotationally connected with a third rotating shaft, and the left side and the right side of the third rotating shaft are fixedly connected with third bevel gears. According to the sewing machine, the purpose that threads in the sewing process can be cut by treading the first pedal is achieved, cutting through scissors is not needed, the workload of operators is reduced, the working efficiency of the operators is improved, and the problems that the workload of the operators is increased, and the working efficiency of the operators is reduced are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to clothing manufacturing equipment technical field especially relates to a sewing machine thread trimming device. BACKGROUND

[0002] Mainly applied to industrial sewing machine, especially clothing, luggage, automotive interior etc. Large-scale production industry, sewing machine needs to complete sewing and thread trimming operation quickly and efficiently, rotary thread trimming device can meet this demand well, at the same time, for some thicker sewing thread, nylon thread used for luggage sewing, rotary thread trimming device can also rely on its greater shearing force to cut the sewing thread smoothly.

[0003] Through the retrieval, the patent announcement number of China is CN109594234A, a kind of thread trimming device of sewing machine is disclosed, belong to clothing manufacturing equipment technical field, it solves the technical problems that the thread trimming device of existing sewing machine is prone to error, the sewing machine includes shuttle frame and the rotary shuttle of being set on shuttle frame, rotary shuttle top is equipped with needle plate, the thread trimming device includes the dynamic knife rotating shaft of being set on shuttle frame and the dynamic knife of being fixed in dynamic knife rotating shaft, dynamic knife rotating shaft is located at one side of rotary shuttle, the cutting edge of dynamic knife can be moved to the lower side of needle plate around dynamic knife rotating shaft circumferentially in the periphery of rotary shuttle, fixed knife seat is fixed on shuttle frame, fixed knife seat is equipped with fixed knife that is matched with dynamic knife, dynamic knife rotating shaft is also equipped with eccentric shaft sleeve that can adjust the position of dynamic knife rotating shaft the thread trimming device in the application is more accurate and reliable when cutting thread, and has high adjustability, but the operator needs to operate by scissors in some places, increase the workload of operator, reduce the work efficiency of operator. UTILITY MODEL CONTENT

[0004] In order to make up for the above shortcomings, the utility model provides a sewing machine thread trimming device, which aims to improve the problems of increasing the workload of operators and reducing the work efficiency of operators in the prior art.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme: a sewing machine thread trimming device, including the body, the bottom of body is provided with the pedal no.

[0006] Through the above technical scheme: in the thread trimming device operation process of sewing machine, pedal no. will drive its inside rotation of the axle no. 1, the right side of axle no. 1 is installed bevel gear no. 1, be provided with axle no. 2 in the right side below the body, and the upper and lower ends are respectively fixed with bevel gear no. 2, and bevel gear no. 1 is engaged with bevel gear no. 2, realizes transmission, and the axle no. 3 in the body rotates with it, and the left and right ends of axle no. 3 are fixed with bevel gear no. 3, and the upper end of bevel gear no. 2 is engaged with bevel gear no. 3, so as to transmit power, and the upper end of axle no. 1 is fixed with bevel gear no. 4, which is driven by bevel gear no. 3, and the upper end of rotating shaft no. 1 is also fixed with rotating sheet, and the rear end of rotating sheet is connected with rotating shaft no. 2, and the outer end of rotating shaft no. 2 is fixed with thread trimming knife, so that the operator only needs to step on pedal no. 1 once, and the thread trimming work of sewing can be completed, without using scissors, so as to reduce the labor intensity of operating personnel and improve work efficiency.

[0007] As a further description of the above technical scheme:

[0008] The convenient replacement mechanism includes a shell, the shell is arranged in the inside of the body, the right end of shell is rotatably connected with a valve, the other end of valve is fixedly connected with a rotating gear, the upper and lower ends of shell are slidably connected with a sawtooth plate, the rotating gear is engaged with the sawtooth plate, the left end of sawtooth plate is fixedly connected with a fixed sheet, the left side of fixed sheet is fixedly connected with a clamping ring, a plurality of springs are fixedly connected in the inside of shell, and the other end of spring is fixedly connected with a clamping block.

[0009] The technical scheme is characterized in that: in the thread cutting device of the sewing machine, the process of replacing the cutter involves rotating the valve in the machine shell to drive the left rotating gear to rotate, the upper and lower edges of the machine shell are connected with the sawtooth plate through sliding, the rotating gear drives the sawtooth plate to move, the fixed sheet is fixed on the left side of the sawtooth plate, the other side of the fixed sheet is fixed with the clamping ring, the spring is installed in the machine shell and connected with the clamping block at one end, and the cutter is conveniently and quickly replaced.

[0010] Further description of the technical scheme is as follows:

[0011] The top left side of the machine body is fixedly connected with a lamp stand, and the upper end of the lamp stand is fixedly connected with a lamp rod.

[0012] The top left side of the machine body is fixedly connected with a lamp stand, and the upper end of the lamp stand is fixedly connected with a lamp rod.

[0013] Further description of the technical scheme is as follows:

[0014] The upper end of the machine body is provided with a mounting groove, and the mounting groove is fixedly connected with a gasket inside.

[0015] The upper end of the machine body is provided with a mounting groove, and the mounting groove is fixedly connected with a gasket inside.

[0016] Further description of the technical scheme is as follows:

[0017] The bottom of the machine body is fixedly connected with a power mechanism, and the lower end of the power mechanism is fixedly connected with an output rod.

[0018] The bottom of the machine body is fixedly connected with a power mechanism, and the lower end of the power mechanism is fixedly connected with an output rod.

[0019] Further description of the technical scheme is as follows:

[0020] The left side of the output rod is fixedly connected with a pulling rod, and the other end of the pulling rod is fixedly connected with a second pedal.

[0021] The left side of the output rod is fixedly connected with a pulling rod, and the other end of the pulling rod is fixedly connected with a second pedal.

[0022] Further description of the technical scheme is as follows:

[0023] The bottom left and right sides of the machine body are fixedly connected with support plates, and the bottom of the support plates is fixedly connected with a base frame.

[0024] The bottom left and right sides of the machine body are fixedly connected with support plates, and the bottom of the support plates is fixedly connected with a base frame.

[0025] As a further description of the above technical solutions:

[0026] The bottom of the chassis is threadedly connected with a plurality of bolts, and the bottom ends of the plurality of bolts are fixedly connected with foot pads.

[0027] Through the above technical solutions: the bottom of the chassis is connected with a plurality of bolts through threads, and the bottom ends of the bolts are fixedly connected with foot pads.

[0028] The utility model has the advantages of:

[0029] 1、The utility model discloses a pedal one rotates the pivot one, thereby driving the thread cutting knife to move, realizes the thread in the sewing process can be cut by stepping on the pedal one, does not need to cut by scissors, reduces the workload of operating personnel, increases the work efficiency of operating personnel, solves the workload of operating personnel, reduces the work efficiency of operating personnel.

[0030] 2、The utility model discloses a rotating valve, makes the sawtooth plate move and be clamped by the clamping ring, and the clamping block fixed in the shell has spring and is used as secondary fixing, realizes the convenient and quick replacement of the cutting tool for cutting thread, solves the complex cutting tool replacement step, the problems of time waste and low efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A perspective view of a sewing machine thread cutting device is provided for the utility model;

[0032] Figure 2 A front view of a sewing machine thread cutting device is provided for the utility model;

[0033] Figure 3 A structure split view of a sewing machine thread cutting device is provided for the utility model;

[0034] Figure 4 A local structure explosion view of a sewing machine thread cutting device is provided for the utility model;

[0035] Figure 5 A convenient replacement mechanism split view of a sewing machine thread cutting device is provided for the utility model.

[0036] LEGEND:

[0037] 1, body; 2, convenient replacement mechanism; 201, shell; 202, valve; 203, gear; 204, sawtooth plate; 205, fixed piece; 206, collar; 207, spring; 208, clamping block; 3, lamp stand; 4, lamp pole; 5, mounting groove; 6, gasket; 7, power mechanism; 8, output rod; 9, pull rod; 10, pedal two; 11, support plate; 12, chassis; 13, bolt; 14, foot pad; 15, pedal one; 16, shaft one; 17, bevel gear one; 18, shaft two; 19, bevel gear two; 20, shaft three; 21, bevel gear three; 22, rotating shaft one; 23, bevel gear four; 24, rotating piece; 25, rotating shaft two; 26, line cutter. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0039] Referring to Figure 1 and Figure 4 An embodiment provided by the utility model: a sewing machine line cutting device, including body 1, the bottom of body 1 is provided with pedal one 15, the middle part of pedal one 15 is fixedly connected with shaft one 16, the right end of shaft one 16 is fixedly connected with bevel gear one 17, the right end of body 1 is provided with shaft two 18, the upper and lower ends of shaft two 18 are fixedly connected with bevel gear two 19, bevel gear one 17 is meshed with the lower end of bevel gear two 19, so that transmission is more smooth, the middle part of body 1 is rotatably connected with shaft three 20, the left and right sides of shaft three 20 are fixedly connected with bevel gear three 21, the upper end of bevel gear two 19 is meshed with the right side of bevel gear three 21, so that transmission is more smooth, the bottom of body 1 is rotatably connected with rotating shaft one 22, the upper end of rotating shaft one 22 is fixedly connected with bevel gear four 23, the left side of bevel gear three 21 is meshed with bevel gear four 23, so that transmission is more smooth, the top end of rotating shaft one 22 is fixedly connected with rotating piece 24, the rear end of rotating piece 24 is provided with rotating shaft two 25, the outer wall of rotating shaft two 25 is fixedly connected with line cutter 26, the inside of body 1 is provided with convenient replacement mechanism 2, convenient replacement mechanism 2 is used for replacing the cutter for cutting line conveniently and quickly, the left side of the top end of body 1 is fixedly connected with lamp stand 3, the upper end of lamp stand 3 is fixedly connected with lamp pole 4.

[0040] Specifically, in the use of sewing machine for sewing work, step on the pedal 15, the inside of the shaft 16 15 begins to rotate, the right side of the shaft 16 16 is installed a bevel gear 17, under the drive of the shaft 16 16 also began to rotate, at the same time, the right side of the body 1 below is provided with a shaft 18 18, the upper and lower ends of the shaft 18 18 is fixed with a bevel gear 19 respectively, bevel gear 17 and bevel gear 19 through gear transmission mechanism each other, make the bevel gear 19 also began to rotate, the inside of the body 1, there is a shaft 20 20, it is connected with the shaft 18 18, to ensure the smooth operation of the whole transmission system, the left and right ends of the shaft 20 20 is fixed with a bevel gear 21 respectively, bevel gear 21 with the bevel gear 19 above mesh, thus the power is transmitted to the bevel gear 21, in addition, the inside of the body 1 is also connected with a rotating shaft 22, the upper end is fixed with a bevel gear 23, bevel gear 21 through the transmission mechanism power to the bevel gear 23, make the rotating shaft 22 also began to rotate, the upper end of the rotating shaft 22 is also fixed with a rotating piece 24, the rear of the rotating piece 24 is provided with a rotating shaft 25, the outer end of the rotating shaft 25 is fixed with a line cutter 26, line cutter 26 in the drive of the rotating shaft 25 complete cutting line action, realize only need to step on the pedal 15, can easily complete the cutting line work, without the use of scissors manually cutting, greatly reduces the workload of the operator, at the same time, also improves the work efficiency, in addition, the top left side of the body 1 is also fixedly connected with a lamp stand 3, the upper end of the lamp stand 3 is fixedly connected with a lamp pole 4, provides sufficient light for the sewing work, to ensure the quality of sewing.

[0041] Referring to Figure 3 and Figure 5 , the convenient replacement mechanism 2 includes a shell 201, the shell 201 is arranged in the inside of the body 1, the right end of the shell 201 is rotatably connected with a valve 202, the other end of the valve 202 is fixedly connected with a rotating gear 203, the upper and lower ends of the shell 201 are slidably connected with a sawtooth plate 204, the rotating gear 203 is engaged with the sawtooth plate 204, so that the transmission is more smooth, the left end of the sawtooth plate 204 is fixedly connected with a fixed piece 205, the left side of the fixed piece 205 is fixedly connected with a clasp 206, the inside of the shell 201 is fixedly connected with a plurality of springs 207, the other end of the spring 207 is fixedly connected with a clamping block 208; the upper end of the body 1 is provided with a mounting groove 5, the inside of the mounting groove 5 is fixedly connected with a gasket 6;

[0042] Specifically, in the process of replacing the cutter of the sewing machine thread trimming device, first, the valve 202 inside the machine shell 201 needs to be rotated, so that the rotating gear 203 starts to rotate. With the rotation of the rotating gear 203, the upper and lower edges of the machine shell 201 will drive the sawtooth plate 204 connected thereto to slide accordingly. The sawtooth plate 204 can be accurately moved through the transmission action of the rotating gear 203. The left side of the sawtooth plate 204 is fixed with a fixed sheet 205, and the left side of the fixed sheet 205 is fixed with a collar 206. A spring 207 is also fixed inside the machine shell 201, and the other end of the spring 207 is connected to a clamping block 208. In addition, the upper end of the sewing machine body 1 is specially provided with a mounting groove 5, and the inside of the mounting groove 5 is fixedly connected with a gasket 6, which ensures the accuracy and safety of the operation.

[0043] Referring to Figure 2 and Figure 3 , the bottom of the body 1 is fixedly connected with a power mechanism 7, and the lower end of the power mechanism 7 is fixedly connected with an output rod 8. The left side of the output rod 8 is fixedly connected with a pulling rod 9, and the other end of the pulling rod 9 is fixedly connected with a pedal two 10. The bottom of the body 1 is fixedly connected with a support plate 11 on the left and right sides, and the bottom of the support plate 11 is fixedly connected with a chassis 12. The bottom of the chassis 12 is threadedly connected with a plurality of bolts 13, and the bottom of the plurality of bolts 13 is fixedly connected with a foot pad 14, so that the device is more fixed;

[0044] Specifically, the bottom of the body 1 is fixedly connected with the power mechanism 7 to provide necessary power support for the entire device. The lower end of the power mechanism 7 is fixedly connected with the output rod 8. The left side of the output rod 8 is designed to be fixedly connected with the pulling rod 9, so that the output rod 8 can transmit power to other parts through the pulling rod 9, thereby realizing more complex mechanical actions. The other end of the pulling rod 9 is fixedly connected with the pedal two 10. The bottom of the body 1 is designed to be fixedly connected with the support plate 11 on the left and right sides. The bottom of the support plate 11 is fixedly connected with the chassis 12, thereby providing additional support and stability for the entire device. The bottom of the chassis 12 is threadedly connected with a plurality of bolts 13, and the bottom of the plurality of bolts 13 is fixedly connected with a foot pad 14, thereby ensuring that the entire device can be stably placed on the ground during use, avoiding sliding or falling.

[0045] Working principle: when a sewing machine thread cutting device cuts thread, through stepping on the pedal 15, the rotating shaft 16 in the pedal 15 rotates, the bevel gear 17 is fixed on the right side of the rotating shaft 16, the rotating shaft 18 is arranged on the lower right side of the machine body 1, the bevel gear 19 is fixed on the upper and lower sides of the rotating shaft 18, the lower bevel gear 19 is driven by the bevel gear 17, the rotating shaft 20 is rotatably connected in the machine body 1, the bevel gear 21 is fixed on the left and right sides of the rotating shaft 20, the right bevel gear 21 is driven by the upper bevel gear 19, the rotating shaft 22 is rotatably connected in the machine body 1, the bevel gear 23 is fixed on the upper side of the rotating shaft 22, the bevel gear 23 is driven by the left bevel gear 21, the rotating piece 24 is fixed on the upper side of the rotating shaft 22, the rotating shaft 25 is arranged on the rear of the rotating piece 24, the thread cutting knife 26 is fixed on the outer side of the rotating shaft 25, so that the thread in the sewing process can be cut by stepping on the pedal 15 once, without the need of cutting by scissors, reducing the workload of the operator and increasing the work efficiency of the operator;

[0046] When a sewing machine thread cutting device changes the cutter, the valve 202 in the machine shell 201 is rotated, the rotating gear 203 on the left side of the valve 202 is rotated, the sawtooth plate 204 is slidably connected on the upper and lower sides of the machine shell 201, the sawtooth plate 204 is driven by the rotating gear 203, the fixed piece 205 is fixed on the left side of the sawtooth plate 204, the collar 206 is fixed on the left side of the fixed piece 205, the spring 207 is fixed in the machine shell 201, the other end of the spring 207 is fixed on the clamping block 208, so that the cutter for cutting thread can be conveniently and quickly replaced.

[0047] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A thread trimming device for a sewing machine comprising a body (1), characterized in that: The bottom of the machine body (1) is provided with a pedal one (15), the middle part of the pedal one (15) is fixedly connected with a rotating shaft one (16), the right end of the rotating shaft one (16) is fixedly connected with a bevel gear one (17), the right end of the machine body (1) is provided with a rotating shaft two (18), the upper and lower ends of the rotating shaft two (18) are fixedly connected with bevel gear two (19), the bevel gear one (17) is meshingly connected with the lower end of the bevel gear two (19), the middle part of the machine body (1) is rotatably connected with a rotating shaft three (20), the left and right sides of the rotating shaft three (20) are fixedly connected with bevel gear three (21), the upper end of the bevel gear two (19) is meshingly connected with the right side of the bevel gear three (21), the bottom of the machine body (1) is rotatably connected with a rotating shaft one (22), the upper end of the rotating shaft one (22) is fixedly connected with a bevel gear four (23), the left side of the bevel gear three (21) is meshingly connected with the bevel gear four (23), the top end of the rotating shaft one (22) is fixedly connected with a rotating piece (24), the bottom of the rear end of the rotating piece (24) is provided with a rotating shaft two (25), the outer wall of the rotating shaft two (25) is fixedly connected with a thread cutter (26), the inside of the machine body (1) is provided with a convenient changing mechanism (2), and the convenient changing mechanism (2) is used for conveniently and quickly changing the cutter for cutting threads.

2. A thread trimming device for a sewing machine according to claim 1, characterized in that: The convenient changing mechanism (2) comprises a machine shell (201), the machine shell (201) is arranged in the inside of the machine body (1), the right end of the machine shell (201) is rotatably connected with a valve (202), the other end of the valve (202) is fixedly connected with a rotating gear (203), the upper and lower ends of the machine shell (201) are slidably connected with a sawtooth plate (204), the rotating gear (203) is meshingly connected with the sawtooth plate (204), the left end of the sawtooth plate (204) is fixedly connected with a fixed piece (205), the left side of the fixed piece (205) is fixedly connected with a clamping ring (206), a plurality of springs (207) are fixedly connected in the inside of the machine shell (201), the other end of the spring (207) is fixedly connected with a clamping block (208).

3. The thread trimming device of claim 1 wherein: The top left side of the machine body (1) is fixedly connected with a lamp stand (3), and the upper end of the lamp stand (3) is fixedly connected with a lamp pole (4).

4. The thread trimming device of claim 1 wherein: The upper end of the machine body (1) is provided with a mounting groove (5), and the inside of the mounting groove (5) is fixedly connected with a gasket (6).

5. The thread trimming device of claim 1 wherein: The bottom of the machine body (1) is fixedly connected with a power mechanism (7), and the lower end of the power mechanism (7) is fixedly connected with an output rod (8).

6. A thread trimming device for a sewing machine according to claim 5, wherein: The left side of the output rod (8) is fixedly connected with a pulling rod (9), and the other end of the pulling rod (9) is fixedly connected with a pedal two (10).

7. The thread trimming device of claim 1 wherein: The bottom left and right sides of the machine body (1) are fixedly connected with support plates (11), and the bottom of the support plate (11) is fixedly connected with a bottom frame (12).

8. A thread trimming device for a sewing machine according to claim 7, characterized in that: The bottom of the bottom frame (12) is threadedly connected with a plurality of bolts (13), and the bottom ends of the plurality of bolts (13) are fixedly connected with foot pads (14).

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