CN210555876U

CN210555876U - Film feeding mechanism of binding machine

Info

Publication number: CN210555876U
Application number: CN201920968565.7U
Authority: CN
Inventors: 杨松; 池仁荣
Original assignee: ZHEJIANG JIANGNAN PHARMACEUTICAL MACHINERY CO Ltd
Current assignee: ZHEJIANG JIANGNAN PHARMACEUTICAL MACHINERY CO Ltd
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-05-19
Anticipated expiration: 2029-06-26

Abstract

The utility model discloses a strapper send membrane mechanism, including unreeling the axle, its characterized in that: the end of the unreeling shaft is connected with a speed reducer with a self-locking function, a front guide roller, a floating guide roller and a rear guide roller are sequentially arranged on a film sending-out path of the unreeling shaft, the floating guide roller is arranged on a guide roller bracket in an up-and-down floating mode, an upper limit position of the floating guide roller is correspondingly provided with an upper electric eye, a lower electric eye is correspondingly arranged in the middle of the floating guide roller, a brake block is arranged above the rear guide roller and movably arranged up and down, and the up-and-down movement of the brake block is pushed by a brake; when the film feeding operation is carried out, the lower electric eye controls the speed reducer to start to operate when the floating guide roller passes through the lower electric eye from bottom to top, when the floating guide roller reaches the upper limit position, the upper electric eye controls the brake cylinder to act and controls the speed reducer to stop operating in a delayed mode, and the length of the film discharged by the unwinding shaft in the delayed mode enables the floating guide roller to return to the lower limit position from the upper limit position. The utility model discloses can realize quick accurate film feeding action to guarantee strapping machine and tie up speed and quality.

Description

Film feeding mechanism of binding machine

Technical Field

The utility model relates to a strapper, concretely relates to film feeding mechanism of strapper.

Background

A strapping machine is a machine that performs a strapping operation by strapping a package with a strapping tape. If the strapping tape adopts a film, the strapping machine needs to use a film feeding mechanism, and whether the film feeding action of the film feeding mechanism is quick and accurate is an important factor for ensuring the strapping speed and the strapping quality of the strapping machine. The film feeding mechanism of the binding machine in the prior art is difficult to realize rapid and accurate film feeding action.

Disclosure of Invention

In view of the deficiencies of the prior art, the to-be-solved technical problem of the present invention is to provide a film feeding mechanism for a binding machine, which can realize rapid and accurate film feeding action to ensure the binding speed and quality.

The utility model adopts the following technical proposal to complete:

the film feeding mechanism of the binding machine comprises an unreeling shaft and is characterized in that: the end of the unreeling shaft is connected with a speed reducer with a self-locking function, a front guide roller, a floating guide roller and a rear guide roller are sequentially arranged on a film sending-out path of the unreeling shaft, the floating guide roller is arranged on a guide roller bracket in an up-and-down floating mode, an upper limit position of the floating guide roller is correspondingly provided with an upper electric eye, a lower electric eye is correspondingly arranged in the middle of the floating guide roller, a brake block is arranged above the rear guide roller and movably arranged up and down, and the up-and-down movement of the brake block is pushed by a brake; when the film feeding operation is carried out, the lower electric eye controls the speed reducer to start to operate when the floating guide roller passes through the lower electric eye from bottom to top, when the floating guide roller reaches the upper limit position, the upper electric eye controls the brake cylinder to act and controls the speed reducer to stop operating in a delayed mode, and the length of the film discharged by the unwinding shaft in the delayed mode enables the floating guide roller to return to the lower limit position from the upper limit position.

In the film feeding mechanism of the binding machine in the technical scheme, the up-down floating distance of the floating guide roller can be smaller when the film is fed to work every time, and the film storage length of the floating guide roller can be smaller than the film feeding length every time, because the speed reducer can be put into work when the film feeding and floating guide roller passes through the discharging eye every time, the unwinding shaft can pay out a certain film length for compensation; because the action distance of the floating guide roller is small, the film can be fed more quickly, so that the binding speed and the binding quality of the binding machine can be ensured. The specific working principle is as follows: when the film feeding is started every time, the film is pulled, the floating guide roller is lifted to the upper limit position from the lower limit position, when the floating guide roller passes through the lower electric eye, the lower electric eye controls the speed reducer to start working, the unreeling shaft unreels the film with a certain length to compensate the shortage of the film storage length of the floating guide roller, when the floating guide roller reaches the upper limit position, the upper electric eye sends a signal to control the action of the brake cylinder, the brake block compresses the passing film on the back guide roller, at the moment, the film sealing mechanism of the binding machine starts to seal and bind the box, meanwhile, the speed reducer carries out delayed braking, the unreeling shaft unreels the film length during the delayed time to enable the floating guide roller to return to the lower limit position from the upper limit position again, the next film feeding action is waited, and the quick and accurate film feeding action is.

Preferably, the two ends of the floating guide roller are connected with a lifting slider, and the vertical movement of the lifting slider is guided by a vertical guide pillar arranged on the guide roller bracket.

Preferably, the speed reducer is a worm gear speed reducer.

Drawings

The utility model discloses there is following figure:

figure 1 is a schematic structural diagram of the present invention,

fig. 2 is a top view in the direction of fig. 1.

Detailed Description

As shown in the figure, the film feeding mechanism of the binding machine of the utility model comprises a unreeling shaft 1, the shaft end of the unreeling shaft 1 is connected with a speed reducer 2 with a self-locking function, the speed reducer 2 is a worm gear speed reducer, a front guide roller 3, a floating guide roller 7 and a rear guide roller 9 are sequentially arranged on the film sending path of the unreeling shaft 1, the floating guide roller 7 is arranged on a guide roller bracket 12 in a vertically floating way, two ends of the floating guide roller 7 are connected with a lifting slider 8, the vertical movement of the lifting slider 8 is guided by a vertical guide post 6 arranged on the guide roller bracket 12, a lower spring is arranged below the lifting slider 8 to play a role of buffering, an upper spring is arranged above the lifting slider 8 to play a role of quickly returning the floating guide roller and assisting in tensioning the film, a corresponding upper electric eye 4 is arranged at the upper limit position of the floating guide roller 7, a corresponding lower electric eye 5 is arranged at, the brake block 10 is arranged movably up and down, and the up and down movement of the brake block 10 is pushed by the brake cylinder 11. When the film feeding works, when the floating guide roller 7 passes through the lower electric eye 5 from bottom to top, the lower electric eye 5 controls the speed reducer 2 to start working, when the floating guide roller 7 reaches the upper limit position, the upper electric eye 4 controls the brake cylinder 11 to act and controls the speed reducer 2 to stop working in a delayed mode, the length of the film discharged by the unwinding shaft 1 in the delayed mode enables the floating guide roller 7 to return to the lower limit position from the upper limit position again, the distance between the upper electric eye 4 and the lower electric eye 5 can be adjusted, and in the action process of the floating guide roller 7 from the lower electric eye 4 to the upper electric eye 5, the speed reducer 2 works to enable the unwinding shaft 1 to discharge the length of the film which just meets the compensation.

Claims

1. The film feeding mechanism of the binding machine comprises an unreeling shaft and is characterized in that: the end of the unreeling shaft is connected with a speed reducer with a self-locking function, a front guide roller, a floating guide roller and a rear guide roller are sequentially arranged on a film sending-out path of the unreeling shaft, the floating guide roller is arranged on a guide roller bracket in an up-and-down floating mode, an upper limit position of the floating guide roller is correspondingly provided with an upper electric eye, a lower electric eye is correspondingly arranged in the middle of the floating guide roller, a brake block is arranged above the rear guide roller and movably arranged up and down, and the up-and-down movement of the brake block is pushed by a brake; when the film feeding operation is carried out, the lower electric eye controls the speed reducer to start to operate when the floating guide roller passes through the lower electric eye from bottom to top, when the floating guide roller reaches the upper limit position, the upper electric eye controls the brake cylinder to act and controls the speed reducer to stop operating in a delayed mode, and the length of the film discharged by the unwinding shaft in the delayed mode enables the floating guide roller to return to the lower limit position from the upper limit position.

2. The film feeding mechanism of a strapping machine in accordance with claim 1, wherein: the two ends of the floating guide roller are connected with a lifting slide block, and the lifting slide block is guided by a vertical guide pillar arranged on the guide roller bracket in an up-and-down movement mode.

3. The film feeding mechanism of a strapping machine in accordance with claim 1, wherein: the speed reducer is a worm gear speed reducer.