CN213739985U

CN213739985U - Thread releasing device of sewing machine

Info

Publication number: CN213739985U
Application number: CN202022725945.3U
Authority: CN
Inventors: 李莉; 李开平
Original assignee: Chongqing Pengyu Hardware Products Co ltd
Current assignee: Chongqing Pengyu Hardware Products Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-07-20
Anticipated expiration: 2030-11-23

Abstract

The utility model discloses a sewing machine thread slackening device, comprising a base plate, fixedly connected with transmission shell on the surface at the upper end middle part of bottom plate, the fixed shell of upper end fixedly connected with of transmission shell, the inside sliding connection of fixed shell has the slide bar, the fixed connection plate on the surface of the upper end of slide bar, the fixed shell's the outside fixedly connected with coil body on the surface, the right-hand member perforated connection of transmission shell has the slip rack. Through the squeezing action between slide bar and the spring vaulting pole for the spring vaulting pole is under the extrusion of slide bar, and to the outside slip is in the inside of activity groove, makes its outer end can closely laminate on the inner wall of coil body, realizes the fixed to the coil body, and effectually prevents "slippage" phenomenon between coil body and the fixed shell and takes place.

Description

Thread releasing device of sewing machine

Technical Field

The utility model belongs to the technical field of the sewing machine, especially, relate to a sewing machine thread take-up device.

Background

The sewing machine can sew fabrics such as cotton, hemp, silk, wool, artificial fiber and the like and products such as leather, plastic, paper and the like, and the sewed stitches are neat, beautiful, flat and firm, the sewing speed is high, and the use is simple and convenient.

When the existing sewing machine is used, the thread loosening of the coil of the sewing machine is often caused by the fact that the thread is not enough to be paid out, and for some high-level and refined textile products, the short thread often causes serious problems in the quality and visual effect of the whole product, so that the refining degree of the textile products produced by processing is greatly reduced, and when the coil needs to be replaced, the thread loosening is also needed to be carried out on the tightened coil, and the original coil is convenient to take out.

Therefore, a thread releasing device of a sewing machine is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems and providing a thread releasing device of a sewing machine.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a sewing machine thread slackening device, includes the bottom plate, the upper end middle part of bottom plate fixedly connected with transmission shell on the surface, the upper end fixedly connected with fixed shell of transmission shell, the inside sliding connection of fixed shell has the slide bar, the upper end of slide bar is fixedly connected with connecting plate on the surface, the outside of fixed shell is fixedly connected with coil body on the surface, the right-hand member perforated connection of transmission shell has the slip rack.

Preferably, a supporting column is fixedly connected to the surface of the middle part of the upper end of the bottom plate, and the upper end of the supporting column is fixedly connected to the surface of the lower end of the transmission shell.

Preferably, the inside bottom surface right side fixedly connected with slide rail of transmission shell, the perforation is connected with the gear on the upper end middle part surface of transmission shell, the lower extreme of gear rotates the connection in the inside bottom surface left side of transmission shell, the lower extreme sliding connection of slip rack is in the upper end of slide rail.

Preferably, the lower end of the fixed housing is fixedly connected with a fixed bracket, the bottom surface of the lower end of the fixed bracket is fixedly connected to the upper end surface of the gear, and the lower end of the outer side wall surface of the fixed housing is provided with a through hole.

Preferably, the movable grooves are formed in the left side and the right side of the inside of the fixed shell, the spring support rods are connected to the inside of the movable grooves in a sliding mode, the sliding grooves are formed in the middle of the fixed shell, and the lower ends of the sliding rods are connected to the inside of the sliding grooves in a sliding mode.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through setting up the transmission shell for the fixed shell that is fixed with the coil body can rotate and rotate through the gear of its lower extreme and the meshing of slip rack, makes under external drive mechanism's drive, and the slip rack drives gear revolve, thereby indirectly drives fixed shell and rotates, makes the fixed coil body in its outside rotate, realizes the pine line effect of coil body.

2. The outstanding characteristics of this practicality lie in: through the squeezing action between slide bar and the spring vaulting pole for the spring vaulting pole is under the extrusion of slide bar, and to the outside slip is in the inside of activity groove, makes its outer end can closely laminate on the inner wall of coil body, realizes the fixed to the coil body, and effectually prevents "slippage" phenomenon between coil body and the fixed shell and takes place.

Drawings

Fig. 1 is a schematic structural view of a thread releasing device of a sewing machine according to the present invention;

fig. 2 is a schematic structural view of a fixed housing of the thread releasing device of the sewing machine according to the present invention.

In the figure: the device comprises a base plate 1, a support column 11, a transmission shell 2, a slide rail 21, a slide rack 22, a gear 23, a fixed shell 3, a movable groove 31, a spring support rod 311, a sliding groove 32, a sliding rod 33, a through hole 34, a fixed support 35, a coil body 36 and a connecting plate 37.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a thread releasing device of a sewing machine comprises a base plate 1, a transmission shell 2 is fixedly connected to the surface of the middle part of the upper end of the base plate 1, a fixed shell 3 is fixedly connected to the upper end of the transmission shell 2, a sliding rod 33 is slidably connected to the inside of the fixed shell 3, a through groove is formed in the front side surface of the lower end of the sliding rod 33, a connecting plate 37 is fixedly connected to the upper surface of the upper end of the sliding rod 33, long springs are fixedly connected to the lower ends of the left side and the right side of the connecting plate 37, the other ends of the long springs are fixedly connected to the upper surface of the fixed shell 3, a coil body 36 is fixedly connected to the outer surface of the fixed shell 3, the lower end of the coil body 36 is in surface contact with the upper end of a fixed support 35, and a sliding rack 22 is connected to the right end of the transmission shell 2 through hole.

Fixedly connected with support column 11 on the surface at bottom plate 1's upper end middle part, the upper end fixed connection of support column 11 is on the lower extreme surface of transmission housing 2, the inside bottom surface right side fixedly connected with slide rail 21 of transmission housing 2, the upper end middle part of transmission housing 2 has gear 23 on the surface, the middle part fixedly connected with connecting rod of gear 23, connecting rod perforation connection is on the surface at the upper end middle part of transmission housing 2, the lower extreme of gear 23 rotates the inside bottom surface left side of connecting at transmission housing 2, the lower extreme fixedly connected with bearing of connecting rod, the lower extreme fixed connection of bearing is on the left side bottom surface of transmission housing, the lower extreme sliding connection of slip rack 22 is in the upper end of slide rail 21, the outside fixedly connected with drive mechanism of slip rack 22.

The lower end of the fixed shell 3 is fixedly connected with a fixed bracket 35, the bottom surface of the lower end of the fixed bracket 35 is fixedly connected on the upper end surface of the gear 23, the lower end of the fixed bracket 35 is fixedly connected on the upper end surface of the connecting rod, the lower end of the outer side wall surface of the fixed shell 3 is provided with a through hole 34, the through hole 34 corresponds to a through groove, the left side and the right side of the inner part of the fixed shell 3 are provided with movable grooves 31, the inner part of the movable groove 31 is slidably connected with a spring support rod 311, the spring support rod 311 is formed by a spring, push rod and slide are constituteed, slide sliding connection is in the inside of activity groove 31, and the one end fixed connection of spring is in the inboard of slide, and the other end fixed connection of spring is on the inside lateral wall face of activity groove, and the inside lateral wall face fixed connection of push rod is on the outside wall face of slide, and spout 32 has been seted up at the middle part of fixed shell 3, and the lower extreme sliding connection of slide bar 33 is in the inside of spout 32.

Now, the operation principle of the present invention is described as follows:

when the thread releasing device of the sewing machine is used, firstly, a coil body 36 is sleeved on the outer side of a fixed shell 3, the bottom surface of the lower end of the coil body 36 is contacted with the upper end of a fixed support 35, then a connecting plate 37 is moved downwards by manpower, the connecting plate 37 moves downwards to drive a sliding rod 33 to slide downwards in a sliding groove 32, long springs on the left side and the right side of the connecting plate are compressed in the downward moving process of the connecting plate 37, the sliding rod 33 slides downwards in the sliding groove 32, meanwhile, a spring support rod 311 is extruded towards two sides, so that a sliding plate slides outwards in a movable groove 31, the springs on the inner side of the sliding plate are stretched, a push rod on the outer side of the sliding plate is tightly abutted against the inner wall of the coil body 36 towards the outer side, the coil body 36 is fixed, when the sliding rod 33 moves downwards to a penetrating groove and a through hole 34 to correspond to each other, the shell 3 and the sliding rod 33 are fixed through an externally connected inserted rod, when the coil body 36 needs to be released, the external transmission structure drives the sliding rack 22 to penetrate into the transmission shell 2 towards the left side, the left end of the sliding rack 22 slides on the sliding rail 21 to be meshed with the gear 23, the gear 23 is driven to rotate in the opposite direction of winding of lines, and the line loosening function of the coil body 36 is achieved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a sewing machine thread slackening device, includes bottom plate (1), its characterized in that, fixedly connected with transmission shell (2) on the surface at the upper end middle part of bottom plate (1), upper end fixedly connected with fixed shell (3) of transmission shell (2), the inside sliding connection of fixed shell (3) has slide bar (33), the upper end of slide bar (33) is fixedly connected with connecting plate (37) on the surface, the outside of fixed shell (3) is fixedly connected with coil body (36) on the surface, the right-hand member perforated connection of transmission shell (2) has sliding rack (22).

2. The thread releasing device of a sewing machine according to claim 1, wherein a support pillar (11) is fixedly attached to a surface of a middle portion of an upper end of the base plate (1), and an upper end of the support pillar (11) is fixedly attached to a lower end surface of the transmission housing (2).

3. The thread releasing device of a sewing machine according to claim 1, wherein a slide rail (21) is fixedly connected to the right side of the inner bottom surface of the transmission housing (2), a gear (23) is connected to the middle surface of the upper end of the transmission housing (2) in a penetrating manner, the lower end of the gear (23) is rotatably connected to the left side of the inner bottom surface of the transmission housing (2), and the lower end of the sliding rack (22) is slidably connected to the upper end of the slide rail (21).

4. The thread releasing device of a sewing machine according to claim 1, wherein a fixing bracket (35) is fixedly connected to a lower end of the fixing housing (3), a lower bottom surface of the fixing bracket (35) is fixedly connected to an upper end surface of the gear (23), and a through hole (34) is formed in a lower end of an outer side wall surface of the fixing housing (3).

5. The thread releasing device of a sewing machine according to claim 1, wherein the fixed housing (3) has a movable slot (31) formed on the left and right side walls thereof, the movable slot (31) is slidably connected with a spring support rod (311), the fixed housing (3) has a sliding slot (32) formed in the middle thereof, and the sliding rod (33) has a lower end slidably connected with the sliding slot (32).