CN215404936U

CN215404936U - Thread trimming device for sewing equipment

Info

Publication number: CN215404936U
Application number: CN202121835763.XU
Authority: CN
Inventors: 胡曾; 徐建克; 梁云
Original assignee: Zhejiang Hengtai Intelligent Equipment Co ltd
Current assignee: Zhejiang Hengtai Intelligent Equipment Co ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-01-04
Anticipated expiration: 2031-08-05

Abstract

The utility model discloses a thread trimming device for sewing equipment, which comprises a support, wherein one end of the support is fixedly provided with a cylinder, a piston rod of the cylinder extends towards the other end of the support, the other end of the support is provided with an upper tool apron, a lower tool apron and a thread passing pressing sheet, one ends of the upper tool apron, the lower tool apron and the thread passing pressing sheet are all fixed on the support through a rotating nail, the upper tool apron, the lower tool apron and the rotating nail are in rotating fit, the other end of the upper tool apron is fixedly connected with the piston rod, the other end of the lower tool apron is provided with a shifting block, the rotating nail is sleeved with a torsion spring, one end of the torsion spring is fixed on the support, and the other end of the torsion spring is fixed on the shifting block. The utility model has the advantages of high working efficiency and long service life.

Description

Thread trimming device for sewing equipment

Technical Field

The utility model relates to the technical field of sewing machines, in particular to a thread trimming device for sewing equipment.

Background

The sewing machine is a machine for making textile and has the main function of automatically sewing the fabric of the textile into a whole with threads. At present, automatic thread trimming devices are arranged on automatic sewing machines so as to achieve the purposes of saving labor, electricity and labor and improving the production efficiency of factories. The patent No. 201620496858.6 discloses an automatic and manual dual-purpose scissors device, in the working process, when the scissors device is driven by a cylinder, a piston rod of the cylinder pulls a movable blade to move, a push arm compresses a conical spring, and the movable blade is tangent to a fixed blade, so that the automatic thread trimming of the thread trimming device is realized; when an operator pushes the hand pushing part on the movable blade by hand, the movable blade acts, the pushing arm compresses the conical spring, and the movable blade is tangent to the fixed blade, so that the manual thread trimming of the thread trimming device is realized. Such working method, no matter be manual shearing or under the automatic cutout's the condition, conical spring all takes place deformation, leads to conical spring's life greatly reduced, makes the life of whole trimming device also shorten greatly simultaneously. Therefore, the thread trimming device for the sewing equipment is longer in service life.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide the thread trimming device which is high in working efficiency, convenient and fast to operate and long in service life.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a trimming device for on sewing machine, includes the support, is fixed with the cylinder in one of support, the piston rod of cylinder extends towards the other end of support, be equipped with blade holder, lower blade holder and cross the line preforming on the other end of support, it all fixes on the support through changeing the nail to go up blade holder, lower blade holder and cross the one end of line preforming, wherein goes up blade holder, lower blade holder and changeing the nail normal running fit, go up on the other end of blade holder and piston rod fixed connection, be equipped with the shifting block on the other end of lower blade holder, the cover is equipped with the torsional spring on changeing the nail, the one end of torsional spring is fixed on the support, and the other end is fixed on the shifting block.

The utility model is further configured to: go up the blade holder and correspond the one end of being connected with the piston rod and be equipped with removable assembly piece, the one end of assembly piece is equipped with the through-hole that supplies the piston rod to wear to establish, is equipped with the threaded rod on the other end, be equipped with the round hole that supplies the threaded rod to wear to establish on the blade holder.

The utility model is further configured to: the threading pressing sheet is provided with a V-shaped threading opening.

The utility model is further configured to: be equipped with removable fixed block between support and the cylinder, the fixed block longitudinal section is the setting of L type, and one end is equipped with the hole one that is used for wearing to establish the bolt, is equipped with on the other end to supply the cylinder to wear to establish fixed hole two.

Through adopting above-mentioned technical scheme, by the motion of cylinder drive upper slitter seat orientation lower slitter seat when realizing automatic trimming, cut the sewing thread, when realizing manual trimming, through pressing down the motion of lower slitter seat orientation upper slitter seat, cut the sewing thread, such structure setting can separately go on the work action of automatic trimming and manual trimming, reduces the loss, does benefit to hoisting device's work efficiency, can prolong its life again, promotes the quality of its product.

Drawings

FIG. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

FIG. 3 is a schematic view of a fixed block structure;

fig. 4 is a schematic structural view of the assembly block.

1. A support; 2. a cylinder; 20. a piston rod; 3. an upper tool apron; 30. a circular hole; 4. a lower tool apron; 40. shifting blocks; 5. wire-passing tabletting; 50. a threading opening; 6. rotating the nail; 7. a torsion spring; 8. assembling the block; 80. a through hole; 81. a threaded rod; 9. a fixed block; 90. a first hole; 91. and a second hole.

Detailed Description

Embodiments of the present invention are further described with reference to fig. 1 to 4.

The utility model provides a trimming device for on sewing machine, includes support 1, is fixed with cylinder 2 in one of support 1, the piston rod 20 of cylinder 2 extends towards the other end of support 1, be equipped with on the other end of support 1 blade holder 3, lower blade holder 4 and cross line preforming 5, the one end of going up blade holder 3, lower blade holder 4 and crossing line preforming 5 all is fixed on support 1 through changeing nail 6, wherein goes up blade holder 3, lower blade holder 4 and changeing 6 normal running fit, go up on the other end of blade holder 3 and piston rod 20 fixed connection, be equipped with shifting block 40 on the other end of lower blade holder 4, the cover is equipped with torsional spring 7 on changeing nail 6, the one end of torsional spring 7 is fixed on support 1, and the other end is fixed on shifting block 40. Go up blade holder 3 and correspond the one end of being connected with piston rod 20 and be equipped with removable assembly piece 8, the one end of assembly piece 8 is equipped with the through-hole 80 that supplies piston rod 20 to wear to establish, is equipped with threaded rod 81 on the other end, be equipped with the round hole 30 that supplies threaded rod 81 to wear to establish on going up blade holder 3. The threading pressure plate 5 is provided with a V-shaped threading opening 50. Be equipped with detachable fixed block 9 between support 1 and the cylinder 2, the fixed block 9 longitudinal section is the setting of L type, and one end is equipped with the hole one 90 that is used for wearing to establish the bolt, is equipped with on the other end and supplies cylinder 2 to wear to establish fixed hole two 91.

When the cylinder 2 is started, the piston rod 20 of the cylinder 2 drives the upper tool apron 3 to move towards the lower tool apron 4, so that the upper tool apron 3 is tangent to the lower tool apron 4, and the purpose of automatic trimming of the device is achieved. When manual trimming is needed, the lower tool apron 4 is driven to move towards the upper tool apron 3 by pushing the shifting block 40, so that the lower tool apron and the upper tool apron are tangent to each other, and the manual trimming is achieved. Lower blade holder 4 resets through torsional spring 7 when moving, and goes up blade holder 3 during the motion, can not lead to the fact deformation to torsional spring 7, consequently can prolong the life of integrated device, the product quality of hoisting device from this. The arrangement of the thread passing pressing sheet 5 can play a role in positioning and protecting the sewing thread, and the sewing thread is prevented from being cut by the upper knife holder 3 or the lower knife holder 4 under the condition of not cutting, so that the quality of a sewn product is prevented from being influenced.

The fixed block 9 is fixed on the support 1 after penetrating through the first hole 90 through the bolt, and the cylinder 2 is penetrated through by the second hole 91 to realize fixed assembly. After the assembly block 8 on the upper tool apron 3 penetrates through the round hole 30 through the threaded rod 81, the position fixation is realized by matching with the nut, and the through hole 80 of the assembly block 8 is penetrated through by the telescopic rod for fixation. Such structure setting for support 1, cylinder 2 and last blade holder 3 have the advantage of convenient maintenance for the structure of easy split.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. A thread trimming device for sewing equipment is characterized in that: the wire feeding device comprises a support, wherein an air cylinder is fixed to one end of the support, a piston rod of the air cylinder extends towards the other end of the support, an upper tool apron, a lower tool apron and a wire passing pressing sheet are arranged at the other end of the support, one end of the upper tool apron, the lower tool apron and one end of the wire passing pressing sheet are fixed to the support through a rotating nail, the upper tool apron, the lower tool apron and the rotating nail are in rotating fit, the other end of the upper tool apron is fixedly connected with the piston rod, a shifting block is arranged at the other end of the lower tool apron, a torsion spring is sleeved on the rotating nail, one end of the torsion spring is fixed to the support, and the other end of the torsion spring is fixed to the shifting block.

2. The thread trimming apparatus for use in a sewing machine as claimed in claim 1, wherein: go up the blade holder and correspond the one end of being connected with the piston rod and be equipped with removable assembly piece, the one end of assembly piece is equipped with the through-hole that supplies the piston rod to wear to establish, is equipped with the threaded rod on the other end, be equipped with the round hole that supplies the threaded rod to wear to establish on the blade holder.

3. The thread trimming apparatus for use in a sewing machine as claimed in claim 1, wherein: the threading pressing sheet is provided with a V-shaped threading opening.

4. The thread trimming apparatus for use in a sewing machine as claimed in claim 1, wherein: be equipped with removable fixed block between support and the cylinder, the fixed block longitudinal section is the setting of L type, and one end is equipped with the hole one that is used for wearing to establish the bolt, is equipped with on the other end to supply the cylinder to wear to establish fixed hole two.