CN215757934U

CN215757934U - Lockstitch sewing machine adjusting device

Info

Publication number: CN215757934U
Application number: CN202120422376.7U
Authority: CN
Inventors: 陈温馨
Original assignee: Anhui Xinyuan Shengzhen Textile Co ltd
Current assignee: Anhui Xinyuan Shengzhen Textile Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2022-02-08
Anticipated expiration: 2031-02-24

Abstract

The utility model discloses an adjusting device of a lockstitch sewing machine, and relates to the technical field of lockstitch sewing machines. This flush joint machine adjusting device, including flush joint machine base, crane and syringe needle adjusting device, syringe needle adjusting device includes syringe needle and device shell, the top fixedly connected with connecting seat of syringe needle, the vertical rack of left side fixedly connected with of connecting seat, the inner wall left side fixedly connected with rotating electrical machines of device shell, the inside of device shell has set gradually transmission, screw assembly and spacing subassembly from the left hand right side, the flexible latch rod of inner wall bottom fixedly connected with of device shell, the top fixedly connected with L type connecting rod of the flexible latch rod. The utility model is provided with the threaded component, and the nut drives the second telescopic latch rod to move upwards by rotating the threaded rod, so that the meshing distance between the second telescopic latch rod and the gear is shortened, the needle pitch of the needle head can be reduced, and the practicability of the lockstitch sewing machine is improved.

Description

Lockstitch sewing machine adjusting device

Technical Field

The utility model relates to the technical field of lockstitch sewing machines, in particular to a lockstitch sewing machine adjusting device.

Background

The flat sewing machine mainly uses a sewing thread to form a stitch on a sewing material, so that one or more layers of sewing materials are interwoven or sewn, the flat sewing machine is generally divided into two purposes of thin materials and thick materials, the flat sewing machine can be used for sewing fabrics such as cotton, hemp, silk, wool, artificial fibers and the like and products such as leather, plastics, paper and the like, when a flat sewing machine is used for sewing chemical fiber cloth, the needle pitch needs to be adjusted according to the requirements of finished products, and a corresponding adjusting structure is usually arranged inside the flat sewing machine, so that the sewing of the chemical fiber cloth is more diversified.

The needle pitch adjusting device in the adjusting device of the existing lockstitch sewing machine has a complex structure and is not easy and convenient to operate, and the practicability of the lockstitch sewing machine is reduced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides an adjusting device of a lockstitch sewing machine, which solves the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a flush joint machine adjusting device, includes flush joint machine base, crane and syringe needle adjusting device, syringe needle adjusting device includes syringe needle and device shell, the top fixedly connected with connecting seat of syringe needle, the vertical rack of left side fixedly connected with of connecting seat, the inside lower extreme of device shell rotates and is connected with the gear, the inner wall left side fixedly connected with rotating electrical machines of device shell, the inside of device shell has set gradually transmission, screw assembly and spacing subassembly from the left hand right side, the flexible latch rod of inner wall bottom fixedly connected with of device shell, the top fixedly connected with L type connecting rod of the flexible latch rod.

Preferably, transmission includes a disc, No. two discs and conveyer belt, the front fixedly connected with sector gear of a disc, the front fixedly connected with sector gear of No. two discs.

Preferably, the first disc is in transmission connection with the second disc through a conveyor belt.

Preferably, the threaded component comprises a threaded rod and a nut, the top of the threaded rod is fixedly connected with a knob, and the front of the nut is fixedly connected with a second telescopic latch rod.

Preferably, the limiting assembly comprises a first fixing block, springs are fixedly connected to two sides of the top end of the first fixing block, a vertical rod is connected to the inside of the first fixing block in a sliding mode, a gear buckle is connected to the top of the vertical rod in a rotating mode, a second fixing block is fixedly connected to the bottom of the vertical rod, and a pull ring is fixedly connected to the bottom of the second fixing block.

Preferably, the top of the right end of the L-shaped connecting rod is rotatably connected with the threaded rod.

(III) advantageous effects

The utility model provides a lockstitch sewing machine adjusting device, which has the following beneficial effects:

(1) the utility model is provided with the threaded component, and the nut drives the second telescopic latch rod to move upwards by rotating the threaded rod, so that the meshing distance between the second telescopic latch rod and the gear is shortened, the needle pitch of the needle head can be reduced, the adjustment is convenient, and the practicability of the lockstitch sewing machine is improved.

(2) The utility model is provided with a transmission device, the transmission device can enable the first telescopic latch rod to reciprocate, the first telescopic latch rod can drive the threaded component to reciprocate, and the reciprocating motion of the needle head can be realized through the meshing of the gear and the vertical rack.

Drawings

FIG. 1 is a schematic overall perspective view of the present invention;

FIG. 2 is a schematic view of a needle adjustment device according to the present invention;

FIG. 3 is a schematic view of the transmission of the present invention;

FIG. 4 is a schematic view of the construction of the threaded assembly of the present invention;

fig. 5 is a schematic structural view of the limiting assembly of the present invention.

In the figure: the sewing machine comprises a 1 lockstitch sewing machine base, a 2 lifting frame, a 3 needle head adjusting device, a 4 needle head, a 5 device shell, a 6 connecting base, a 7 vertical rack, a 8 gear, a 9 rotating motor, a 10 transmission device, a 101 first disc, a 102 second disc, a 103 conveyor belt, a 104 first sector gear, a 105 second sector gear, a 11 thread component, a 111 threaded rod, a 112 nut, a 113 knob, a 114 second telescopic latch rod, a 12 limit component, a 121 first fixing block, a 122 spring, a 123 vertical rod, a 124 gear buckle, a 125 second fixing block, a 126 pull ring, a 13 first telescopic latch rod and a 14L-shaped connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a lockstitch machine adjusting device, including lockstitch machine base 1, crane 2 and syringe needle adjusting device 3, syringe needle adjusting device 3 includes syringe needle 4 and device shell 5, the top fixedly connected with connecting seat 6 of syringe needle 4, the vertical rack 7 of left side fixedly connected with of connecting seat 6, the left side of vertical rack 7 meshes with gear 8 all the time, the inside top right side fixedly connected with fixed block of device shell 5, the inside lower extreme of device shell 5 rotates and is connected with gear 8, when initial condition, the left side of gear 8 meshes with No. two flexible latch levers 114, the inner wall left side fixedly connected with rotating electrical machines 9 of device shell 5, the output shaft department and No. one disc 101 fixed connection of rotating electrical machines 9, the inside of device shell 5 has set gradually transmission 10 from left side to right side, screw assembly 11 and spacing subassembly 12, transmission 10 includes No. one disc 101, Disk 102 and conveyer belt 103 No. two, disc 101's front fixedly connected with sector gear 104 No. one, disc 102's front fixedly connected with sector gear 105 No. two, disc 101 is connected with disc 102 transmission No. two through conveyer belt 103, under sector gear 104 and sector gear 105's cooperation, can realize the up-and-down back and forth movement of a flexible latch rod 13, transmission 1013 can make a flexible latch rod back and forth movement, flexible latch rod 13 can drive threaded component 11 back and forth movement, meshing through gear 8 and vertical rack 7, can realize the back and forth movement of syringe needle 4.

The threaded component 11 comprises a threaded rod 111 and a nut 112, a knob 113 is fixedly connected to the top of the threaded rod 111, a second telescopic latch rod 114 is fixedly connected to the front of the nut 112, a fixing pin is rotatably connected to the bottom of the threaded rod 111, the right end of the fixing pin is slidably connected to the left side of a fixing block, the nut 112 drives the second telescopic latch rod 114 to move upwards by rotating the threaded rod 111, so that the meshing distance between the second telescopic latch rod 114 and the gear 8 is shortened, the needle pitch of the needle 4 can be reduced, the adjustment is convenient, the practicability of the flat bed sewing machine is improved, the limiting component 12 comprises a first fixing block 121, two sides of the first fixing block 121 are fixedly connected with the bottom of the inner wall of the device shell 5 through a connecting frame, springs 122 are fixedly connected to two sides of the top end of the first fixing block 121, a vertical rod 123 is slidably connected to the inside of the first fixing block 121, and a gear buckle 124 is rotatably connected to the top of the vertical rod 123, the bottom of the vertical rod 123 is fixedly connected with a second fixing block 125, the bottom of the second fixing block 125 is fixedly connected with a pull ring 126, the bottom of the inner wall of the device shell 5 is fixedly connected with a first telescopic latch rod 13, the top of the first telescopic latch rod 13 is fixedly connected with an L-shaped connecting rod 14, and the top of the right end of the L-shaped connecting rod 14 is rotatably connected with the threaded rod 111.

The working principle is that the needle pitch of the needle 4 is the largest in the initial state of the device, when the needle pitch of the needle 4 needs to be adjusted, the pull ring 126 is pulled downwards, the second fixing block 125 fixedly connected with the pull ring 126 drives the vertical rod 123 to move downwards, the spring 122 is stretched, so that the gear buckle 124 is separated from the gear 8, then the pull ring 126 is rotated by one hundred eighty degrees, the pull ring 126 is loosened, the lowest point of the first fixing block 121 is contacted with the highest point of the second fixing block 125, the position of the gear 8 is fixed, the limiting component 12 loses the limiting effect, then the threaded rod 111 is rotated clockwise through the knob 113, the nut 112 is moved upwards to a proper position, the right side of the second telescopic latch rod 114 is not meshed with the gear 8 at this time, then the pull ring 126 is rotated by one hundred eighty degrees again, after the pull ring 126 is loosened, the gear buckle 124 is reset through the spring 122 and clamped with the gear 8 again, the limiting component 12 recovers the limiting function;

then the working state of the rotating motor 9 is turned on, so that the first circle 101 and the second disc 102 rotate clockwise, meanwhile, the first sector gear 104 and the second sector gear 105 also rotate clockwise, the first sector gear 104 enables the first telescopic latch rod 13 to move downwards, the L-shaped connecting rod 14 fixedly connected with the top end of the first telescopic latch rod 13 can drive the threaded component 11 to move downwards, the fixed rod at the bottom of the second telescopic latch rod 114 is not affected, when the second telescopic latch rod 114 descends to a position meshed with the gear 8, the vertical rack 7 can drive the connecting seat 6 and the needle 4 to move upwards, the track of the needle 4 to move upwards is shorter than that of the initial state, when the first sector gear 104 rotates clockwise by one hundred eighty degrees, the first sector gear 104 is not meshed with the left side of the first telescopic latch rod 13 any more, the second sector gear 105 is meshed with the right side of the first telescopic latch rod 13 exactly, when the first sector gear 104 continues to rotate clockwise, the second sector gear 105 drives the first retractable latch rod 13 to move upwards, the L-shaped connecting rod 14 fixedly connected with the top end of the first retractable latch rod 13 drives the threaded component 11 to move upwards, the fixed rod at the bottom of the second retractable latch rod 114 is not affected, when the second retractable latch rod 114 rises to a position meshed with the gear 8, the vertical rack 7 drives the connecting seat 6 and the needle 4 to move downwards, the downward movement track of the needle 4 is shorter than that in the initial state, when the first sector gear 104 rotates clockwise by three hundred sixty degrees, the second sector gear 105 is not meshed with the right side of the first retractable latch rod 13 any more, the first sector gear 104 is just meshed with the left side of the first retractable latch rod 13, and when the first sector gear 104 continues to rotate clockwise, the second sector gear 105 drives the first retractable latch rod 13 to move upwards, the subsequent first telescopic latch rod 13 keeps reciprocating up and down, so that the needle pitch adjustment work of the needle 4 can be completed, and in a specific range, the needle pitch of the needle 4 is smaller as the second telescopic latch rod 114 is adjusted upwards.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a flush joint machine adjusting device, includes flush joint machine base (1), crane (2) and syringe needle adjusting device (3), its characterized in that: syringe needle adjusting device (3) include syringe needle (4) and device shell (5), the top fixedly connected with connecting seat (6) of syringe needle (4), the vertical rack of left side fixedly connected with (7) of connecting seat (6), the inside lower extreme of device shell (5) rotates and is connected with gear (8), the inner wall left side fixedly connected with rotating electrical machines (9) of device shell (5), the inside of device shell (5) has set gradually transmission (10), screw assembly (11) and spacing subassembly (12) from the left hand right side, the inner wall bottom fixedly connected with flexible latch rod (13) of device shell (5), the top fixedly connected with L type connecting rod (14) of flexible latch rod (13).

2. The lockstitch machine adjusting device of claim 1, wherein: the transmission device (10) comprises a first disc (101), a second disc (102) and a conveyor belt (103), wherein a first sector gear (104) is fixedly connected to the front face of the first disc (101), and a second sector gear (105) is fixedly connected to the front face of the second disc (102).

3. A lockstitch machine adjusting device according to claim 2, wherein: the first disc (101) is in transmission connection with the second disc (102) through a conveyor belt (103).

4. The lockstitch machine adjusting device of claim 1, wherein: threaded component (11) include threaded rod (111) and nut (112), the top fixedly connected with knob (113) of threaded rod (111), the front fixedly connected with of nut (112) is No. two flexible latch bars (114).

5. The lockstitch machine adjusting device of claim 1, wherein: spacing subassembly (12) include fixed block (121), top both sides fixedly connected with spring (122) of fixed block (121), the inside sliding connection of fixed block (121) has vertical pole (123), the top of vertical pole (123) is rotated and is connected with gear buckle (124), No. two fixed block (125) of bottom fixedly connected with of vertical pole (123), No. two fixed block (126) of bottom fixedly connected with pull ring (126) of fixed block (125).

6. The lockstitch machine adjusting device of claim 1, wherein: the top of the right end of the L-shaped connecting rod (14) is rotatably connected with the threaded rod (111).