CN202380221U

CN202380221U - Latch needle

Info

Publication number: CN202380221U
Application number: CN2011205365691U
Authority: CN
Inventors: 田建明
Original assignee: CHANGZHOU SICHENG KAIYE PRECISION NEEDLE CO LTD
Current assignee: CHANGZHOU SICHENG KAIYE PRECISION NEEDLE CO LTD
Priority date: 2011-12-20
Filing date: 2011-12-20
Publication date: 2012-08-15
Anticipated expiration: 2021-12-20

Abstract

The utility model discloses a latch needle, which comprises a needle handle, a needle hook and a needle latch, the needle hook is located on the tip of one end of the needle handle, the end of the needle handle, which is close to the needle hook, is provided with a needle latch slot, one end of the needle latch is rotatably mounted in the needle latch slot, the other end of the needle latch is extended out of a needle belly, a needle back is opposite from the needle belly, the end of the needle latch slot, which is far from the needle hook, is bordered with a first surface and a second surface, the first surface is connected with the second surface, and is perpendicular to the length direction of the needle handle, the second surface is arc-shaped, the end of the needle latch slot, which is connected with the needle hook, is bordered with a third surface, which is a slope, the needle back is provided with a groove in a direction away from the needle hook, the groove is connected with the needle latch slot, one end of a needle latch spring is a fixed end, and is fixed in the groove, and the other end of the needle latch spring is an unfixed end, and overlaps the third surface. In the process of operation, the sensitivity of the needle latch of the latch needle to errors is decreased, consequently, operation is reliable, and the service life is longer; and moreover, the border of the left end of the needle latch slot is favorable for the removal of dirt.

Description

A kind of latch needles

Technical field

The utility model relates to the flat machine technical field, particularly relates to a kind of latch needles.

Background technology

Present latch needles is in the process of using, and needle latch can be swung on both sides, and an end swings to the closed position, and needle latch places on the pinhock, and an end swings to the position, back, and needle latch rests on the end face of needle latch seam away from pinhock one end.Needle latch is high to the susceptibility of error in the process of work like this, is unfavorable for operation, and service life is not long yet, and the dirt of needle latch in stitching easy to clean not.

Summary of the invention

The utility model technical issues that need to address are needle latches in the process of work the susceptibility to error is high, are unfavorable for operation, and service life is not long yet, and the dirt of needle latch in stitching easy to clean not.

For solving the problems of the technologies described above, the utility model provides a kind of latch needles, comprises needle handle, pinhock and needle latch, and pinhock is positioned at the top of needle handle one end; Needle handle is provided with the needle latch seam at the end near pinhock, and needle latch one end is rotating to be installed in the needle latch seam, and the other end stretches out from the pin tripe, and needle back and pin tripe are in the opposite direction; Needle latch is sewn on a end away from pinhock by first surface and second surface limited boundary, and first surface links to each other with second surface, and first surface is perpendicular to the length direction of needle handle; Second surface is an arc, and needle latch is sewn on an end of connection pinhock by the 3rd surperficial limited boundary, and the 3rd surface is the inclined-plane; Direction away from pinhock on needle back has a groove, links to each other with the needle latch seam, and an end of needle latch spring is a stiff end; Be fixed in the groove, the other end is stiff end not, rides on the 3rd surface.

The needle latch of the utility model susceptibility to error in the process of work has reduced, and makes reliable, longer service life, and the product quality that processes is better, and the setting of first surface and second surface more helps removing the dirt in the needle latch seam.

As the further improvement of the utility model, said needle latch spring is fixed in the said groove with Laser Welding.

Laser Welding is not only easy to operate, also makes weld seam more solid attractive in appearance simultaneously.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the upward view of the utility model.

Wherein, 1-needle handle, 2-pinhock, 3-needle latch, 4-needle latch seam, 5-groove, 6-needle latch spring, 7-first surface, 8-second surface, 9-the 3rd surface, 10-pin tripe, 11-needle back.

The specific embodiment

As shown in the figure, a kind of latch needles of the utility model comprises needle handle 1, pinhock 2 and needle latch 3, and pinhock 2 is positioned at the top of needle handle 1 one ends; Needle handle 1 is provided with needle latch seam 4 at the end near pinhock 2, and needle latch 3 one ends are rotating to be installed in the needle latch seam 4, and the other end stretches out from pin tripe 10, and needle back 11 is in the opposite direction with pin tripe 10; Needle latch seam 4 away from an end of pinhock 2 by first surface 7 and second surface 8 limited boundaries, first surface 7 links to each other with second surface 8, first surface 7 is perpendicular to the length direction of needle handle 1; Second surface 8 is an arc, and by the 3rd surperficial 9 limited boundaries, the 3rd surface 9 is the inclined-plane to needle latch seam 4 at an end that connects pinhock 2; Direction away from pinhock 2 on needle back 11 has a groove 5, links to each other with needle latch seam 4, and an end of needle latch spring 6 is a stiff end; Be fixed in the groove 5, the other end is stiff end not, rides on the 3rd surface 9.

Needle latch spring 6 usefulness Laser Welding are fixed in the groove 5.

A kind of latch needles of the utility model is in the process of using, and needle latch can be swung on both sides, and an end swings to the closed position; Needle latch places on the pinhock, and the part that this moment, latch needles was positioned at needle latch seam can overwhelm on the needle latch spring, makes distortion of needle latch spring generation; The needle latch spring rides over the 3rd a lip-deep end and can move up along said surface, and needle latch is produced resiliency, and the needle latch of the utility model susceptibility to error in the process of work has reduced like this; Make reliable; Longer service life, and the product quality that processes is better, and the setting of first surface and second surface more helps removing the dirt in the needle latch seam; Laser Welding is not only easy to operate, also makes weld seam more solid attractive in appearance simultaneously.

Claims

1. a latch needles comprises needle handle (1), pinhock (2) and needle latch (3), and said pinhock (2) is positioned at the top of said needle handle (1) one end; Said needle handle (1) is provided with needle latch seam (4) at the end near said pinhock (2); Said needle latch (3) one ends are rotating to be installed in the said needle latch seam (4), and the other end stretches out from pin tripe (10), and needle back (11) is in the opposite direction with said pin tripe (10); It is characterized in that: said needle latch seam (4) away from an end of said pinhock (2) by first surface (7) and second surface (8) limited boundary; Said first surface (7) links to each other with said second surface (8), and said first surface (7) is perpendicular to the length direction of said needle handle (1), and said second surface (8) is an arc; Said needle latch seam (4) at an end that connects said pinhock (2) by the 3rd surface (9) limited boundary; Said the 3rd surface (9) is the inclined-plane, and the direction that goes up away from said pinhock (2) at said needle back (11) has a groove (5), links to each other with said needle latch seam (4); One end of needle latch spring (6) is a stiff end; Be fixed in the said groove (5), the other end is stiff end not, rides on said the 3rd surface (9).

2. according to claim 1 or claim 2 a kind of latch needles, it is characterized in that: said needle latch spring (6) is fixed in the said groove (5) with Laser Welding.