CN210365739U

CN210365739U - Anti-reversing mechanism for spring fastener

Info

Publication number: CN210365739U
Application number: CN201920969413.9U
Authority: CN
Inventors: 林达忠
Original assignee: Ningbo Hengtao Commodity Industry & Trade Co ltd
Current assignee: Ningbo Hengtao Commodity Industry & Trade Co ltd
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-04-21
Anticipated expiration: 2029-06-26

Abstract

A spring fastener anti-backward mechanism comprises a feeding frame in a C shape, wherein a feeding barrel is arranged at one end of the feeding frame, a spring fastener belt in a winding shape is placed on the feeding barrel, the spring fastener belt is placed on the inner side of the feeding frame to be conveyed, an anti-backward device is arranged at the tail end of the feeding frame and comprises a fixed support, one end of the upper end of the fixed support is fixedly connected with a connecting rod, a rotatable one-way gear is arranged at the other end of the connecting rod, and the teeth of the one-way gear can be clamped into holes between every two spring fasteners. The utility model discloses following beneficial effect has: under the rotation of the one-way gear of the anti-reverse device, the spring buckle belt can only move forwards towards the punch and the plate, but can not move backwards, so that the machine is prevented from idle driving, and unqualified products are made.

Description

Anti-reversing mechanism for spring fastener

Technical Field

The utility model belongs to sofa snak link field, concretely relates to snak link prevents moving back mechanism.

Background

At present, most of cushions and back cushions of sofas are made of polyester foam, although the cost is low, the sitting feeling is not only poor in air permeability but also obviously poor in comfort compared with a spring cushion; the spring cushion is not easy to deform after being used for a long time due to the perfect combination of flexibility and support, and becomes the preference of users.

The spring cushion is produced, wherein two ends of a spring are hung on spring buckles, the spring buckles are fixed on a spring cushion frame, the spring buckles adopted in the industry are made of integrally formed plastic materials or metal materials, the strength of the spring buckles made of the plastic materials is insufficient in long-term use, and particularly, when the spring cushion bears heavy people for a long time, such as export of European and American countries, and people sitting in western people with heavy weight for a long time, the spring hanging positions of the spring buckles are easily damaged, so that the collapse of the spring is caused, the scrapping of the sofa is caused, and unnecessary waste is caused; in order to solve the problems, the spring fastener made of metal materials is produced in the industry.

The existing spring fastener feeding mode is simple, particularly a side spring fastener feeding mode which is generally manually managed, forward pushing, slow manual translation and the distance of a translated spring fastener are carried out, and then a punch is pressed down to beat the spring fastener on a plate.

In the process of pressing down the punch, the spring buckle belt is easy to retract, and after the retraction, the next spring buckle cannot be conveyed in place, so that idle beating is formed, or waste products are beaten.

Disclosure of Invention

Not enough to prior art, the utility model provides a mechanism is prevented moving back by snak link solves current snak link area and when buckleing, rolls back easily, causes to blank, beats out the problem of waste product.

The utility model discloses a following technical scheme realizes.

Anti-reversing mechanism of snak link, including the pay-off frame that is the C font, the one end of pay-off frame be provided with a pay-off section of thick bamboo, a pay-off section of thick bamboo on place the spring strap that is the coiling shape and detain, the spring strap place the inboard at the pay-off frame and carry, the tail end of pay-off frame set up and prevent reversing device, prevent reversing device include the fixed bolster, the one end of upper end fixed connection connecting rod of fixed bolster, the other end of connecting rod on be provided with rotatable one-way gear, the tooth of one-way gear can block in the hole between two liang of snak links, the other end of connecting rod on be provided with the fixed axle, the fixed axle on the cover establish one-way gear, one-way gear and fixed axle between set up one-. The one-way bearing and the one-way gear on the one-way bearing are utilized to lock the spring buckle belt in one direction, so that the spring buckle belt can be prevented from returning back.

Preferably, the end part of the feeding frame is integrally formed with an L-shaped placing frame, a vertical blocking rod of the L-shaped placing frame is provided with a rolling shaft, and the feeding barrel is plugged into the rolling shaft. The spring buckle belt is in a downward-placing state, and gravity blanking is convenient to use.

Preferably, the connecting rod and the fixed bracket are inclined at 45 degrees. Convenient maintenance and real-time observation.

Preferably, the fixed support is further provided with a semicircular supporting rod, and the plane of the semicircular supporting rod is attached to the lower surface of the connecting rod. The semicircular supporting rod can play a role in supporting the connecting rod, and the service life is prolonged.

Preferably, the two sides of the spring buckle belt are also provided with limiting frames, the limiting frames are provided with flanges, and the fixing supports are fixed on the flanges.

Compared with the prior art: under the rotation of the one-way gear of the anti-reverse device, the spring buckle belt can only move forwards towards the punch and the plate, but can not move backwards, so that the machine is prevented from idle driving, and unqualified products are made.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 1 according to the present invention.

Fig. 4 is an enlarged view of the point B in fig. 2 according to the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the embodiments.

A spring fastener anti-backward-movement mechanism comprises a C-shaped feeding frame 5, wherein a feeding barrel 8 is arranged at one end of the feeding frame 5, a spring fastener belt in a winding shape is placed on the feeding barrel 8, the spring fastener belt is placed on the inner side of the feeding frame 5 for conveying, an anti-backward-movement device is arranged at the tail end of the feeding frame 5 and comprises a fixed support 11, the upper end of the fixed support 11 is fixedly connected with one end of a connecting rod 13, a rotatable one-way gear 14 is arranged at the other end of the connecting rod 13, teeth of the one-way gear 14 can be clamped into holes between every two spring fasteners, an L-shaped placing frame is integrally formed at the end part of the feeding frame 5, a vertical blocking rod of the L-shaped placing frame is provided with a rolling shaft, the feeding barrel 8 is stuffed in the rolling shaft, the connecting rod 13 and the fixed support 11 are inclined at 45 degrees, the spring fastener is characterized in that a fixed shaft is arranged at the other end of the connecting rod 13, a one-way gear 14 is sleeved on the fixed shaft, a one-way bearing is arranged between the one-way gear 14 and the fixed shaft, a semicircular supporting rod 12 is further arranged on the fixed support 11, the plane of the semicircular supporting rod 12 is attached to the lower surface of the connecting rod 13, limiting frames 10 are further arranged on two sides of the spring fastener, a flanging is arranged on the limiting frames 10, and the fixed support 11 is fixed on the flanging.

In the use process, the spring fastener belt is firstly wound on the feeding barrel 8, the central hole of the feeding barrel 8 is plugged into the rolling shaft, and the bearing is arranged between the feeding barrel 8 and the rolling shaft, so that the spring fastener belt can rotate relatively, the spring fastener belt on the outermost ring is drawn out and placed on the inner side of the feeding frame 5, and the spring fastener belt is transported downwards by utilizing the self weight.

In the conveying process, in order to prevent the spring buckle belt from retracting when the buckle belt is buckled, the one-way gear 14 on the connecting rod 13 is designed and manufactured, the one-way gear 14 is a helical gear, helical teeth of the helical gear are clamped into holes between every two spring buckles, when the spring buckle belt automatically moves downwards under the action of gravity, the one-way gear 14 and a fixed shaft on the connecting rod 13 rotate relatively, the one-way gear 14 rotates anticlockwise by an angle of one tooth, and normal blanking of the spring buckle belt is not influenced.

In the process of making a button, impact force is inevitably generated on the spring buckle belt, the spring buckle belt can possibly be reversed, once the spring buckle belt backs up, the one-way bearing of the one-way gear 14 plays a role and cannot rotate clockwise, the one-way bearing can freely rotate in one direction and is locked in the other direction, a metal shell of the one-way bearing comprises a plurality of rolling shafts, rolling needles or rolling balls, and the rolling seats (cavities) of the one-way bearing are shaped so that the one-way bearing can only roll in one direction, and great resistance force can be generated in the other direction.

Once the one-way gear 14 cannot be rotated, the helical teeth are engaged in the holes between two spring buckles, and a relative force is generated to prevent the spring buckles from retracting.

The feeding rack is not limited to the C shape, and can be a plane feeding rack or other rack bodies with various shapes for feeding.

The protection scope of the present invention includes but is not limited to the above embodiments, the protection scope of the present invention is subject to the claims, and any replacement, deformation, and improvement that can be easily conceived by those skilled in the art made by the present technology all fall into the protection scope of the present invention.

Claims

1. A spring fastener anti-reversing mechanism is characterized by comprising a feeding frame (5), wherein the tail end of the feeding frame (5) is provided with an anti-reversing device, the anti-reversing device comprises a fixed support (11), a fixed shaft is arranged on the fixed support (11), one-way gears (14) are sleeved on the fixed shaft, teeth of the one-way gears (14) can be clamped into holes between every two spring fasteners, and one-way bearings are arranged between the one-way gears (14) and the fixed shaft.

2. The anti-backup mechanism of a spring buckle as claimed in claim 1, wherein the upper end of the fixed bracket (11) is fixedly connected with one end of a connecting rod (13), the other end of the connecting rod (13) is provided with a rotatable one-way gear (14), the other end of the connecting rod (13) is provided with a fixed shaft, and the fixed shaft is sleeved with the one-way gear (14).

3. The anti-reversing mechanism for the spring fastener is characterized in that an L-shaped placing frame is integrally formed at the end of the feeding frame (5), a vertical blocking rod of the L-shaped placing frame is provided with a roller, and a feeding barrel (8) is plugged into the roller.

4. The anti-backup mechanism of a spring catch according to claim 2, characterized in that the connecting rod (13) is inclined at 45 degrees to the fixing bracket (11).

5. The anti-backup mechanism for the spring buckle as claimed in claim 4, wherein the fixing bracket (11) is further provided with a semicircular supporting rod (12), and the plane of the semicircular supporting rod (12) is attached to the lower surface of the connecting rod (13).

6. The anti-backing mechanism of the spring fastener according to claim 1, wherein two sides of the spring fastener are further provided with a limiting frame (10), the limiting frame (10) is provided with a flange, and the fixing support (11) is fixed on the flange.