CN211920332U

CN211920332U - Film-coating brake device of film coating machine

Info

Publication number: CN211920332U
Application number: CN202020486311.4U
Authority: CN
Inventors: 不公告发明人
Original assignee: Dezhou Kedaier Group Co ltd
Current assignee: Dezhou Kedaier Group Co ltd
Priority date: 2020-03-29
Filing date: 2020-03-29
Publication date: 2020-11-13
Anticipated expiration: 2030-03-29

Abstract

The utility model relates to a membrane brake equipment on membrane machine, including last membrane motor and non return device, it stretches the motor for the biax to go up the membrane motor, its preceding output shaft is the drive shaft, its back output shaft is the non return axle, be used for connecting the non return device, motor and backup pad are installed on the basis, the non return device is located between motor and the backup pad, the front end of its casing passes through dish spring group and is connected with the casing of motor, the rear end of its casing passes through friction disc group and is connected with the backup pad, dish spring group comprises two relative dish springs, the casing rear end at the motor is fixed to one of them dish spring, another dish spring fixed mounting is at the casing front end of non return device, two dish springs sticiss together, friction disc group comprises the friction disc of two mutual laminatings, one of them friction disc fixed mounting is at the rear end of non return device's casing. The utility model discloses when guaranteeing effective brake (non return), the working costs has been reduced.

Description

Film-coating brake device of film coating machine

Technical Field

The utility model relates to a membrane brake equipment on membrane covering machine belongs to mechanical technical field.

Background

In the operation process of the film feeding mechanism of the film coating machine, the film feeding motor can retreat when braking after one film is discharged, the film cutting clutch is used as a brake in the prior art, but the film cutting clutch is easily twisted to be damaged due to overlarge torque, so that the operation cost is very high.

SUMMERY OF THE UTILITY MODEL

For overcoming the above defect of prior art, the utility model provides a membrane brake equipment on membrane covering machine need not to cut the membrane clutch for last membrane motor brake, in effective brake (non return), reduces the working costs.

The technical scheme of the utility model is that: the film feeding brake device of the film wrapping machine comprises a film feeding motor and a non-return device, wherein the film feeding motor is a double-shaft extension motor, a front output shaft of the film feeding motor is a driving shaft, a rear output shaft of the film feeding motor is a non-return shaft and is used for being connected with the non-return device, and the allowable rotation mode of the non-return device is consistent with the working mode of the motor.

Preferably, the check device comprises a rotating shaft and a shell, and the rear output shaft of the motor is coaxially connected with the rotating shaft of the check device.

Preferably, the non-return device adopts a ratchet mechanism, a ratchet of the ratchet mechanism is installed on a rotating shaft of the non-return device, and a pawl of the ratchet mechanism is installed on the inner side of a shell of the non-return device.

Preferably, the motor is installed on the basis, still install the backup pad on the basis, non return device is located the motor with between the backup pad, its casing is unsettled, the front end of non return device's casing pass through dish spring group with the casing of motor is connected, the rear end of non return device's casing pass through the friction disc group with the backup pad is connected, dish spring group comprises two relative dish springs, and one of them dish spring is fixed the casing rear end of motor, and another dish spring fixed mounting is in non return device's casing front end, and two dish spring sticiss together, the friction disc group comprises two friction discs of laminating each other, and one of them friction disc fixed mounting is in the rear end of non return device's casing, and another is installed the front surface of backup pad.

Preferably, the disc spring is annular, and a hole allowing the rear output shaft of the motor and the rotating shaft of the check device to pass through is formed in the center of the disc spring.

Preferably, the friction plate is annular.

Preferably, a fixing plate is fixedly installed on the foundation, the supporting plate is connected with the foundation in a movable connection mode allowing the supporting plate to move back and forth, an adjusting screw rod is screwed on the fixing plate, and the front end of the adjusting screw rod is connected with the supporting plate in a movable connection mode allowing the supporting plate to rotate around the axis of the adjusting screw rod.

Preferably, the front end of the adjusting screw rod is inserted into a blind hole in the rear surface of the support plate and is in clearance fit with the side wall of the blind hole.

Preferably, the side wall of the inner end of the blind hole is provided with an annular groove, and the front end of the screw rod is provided with an annular bulge matched with the annular groove.

Preferably, the rear end of the screw rod is positioned behind the fixed plate and is provided with a crank.

The utility model has the advantages that: because the non-return device is arranged, the film cutting clutch is not required to be used as a brake or non-return device of the upper film motor, the film cutting clutch cannot be damaged due to the retreating of the upper film clutch, the service life of the film cutting clutch is prolonged, and the operating cost is reduced; because the two ends of the shell of the non-return device are respectively provided with the pressure spring and the friction plate set, when the torque is overlarge, the shell overcomes the static friction force and rotates relative to the rotating shaft to form a certain buffer effect, thereby avoiding the equipment damage caused by strict non-return when the torque is overlarge and being beneficial to ensuring the service life.

Drawings

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

Detailed Description

Referring to fig. 1, the film brake device of the film wrapping machine of the present invention includes a film feeding motor 20 and a non-return device 40, the film feeding motor is a double-shaft stretching motor, the front output shaft thereof is a driving shaft for connecting the film feeding mechanism 10, the driving film feeding mechanism works, the rear output shaft thereof is a non-return shaft for connecting the non-return device, and the allowable rotation mode of the non-return device is consistent with the working mode of the motor.

The non-return device can adopt any suitable non-return device, and comprises a rotating shaft and a shell, wherein the rotating shaft can rotate in one direction relative to the shell, but the rotating shaft cannot rotate in the other direction, so that a non-return (or non-return) effect is formed.

For example, the check device may employ a ratchet mechanism, a ratchet of the ratchet mechanism may be mounted on the rotating shaft, and a pawl of the ratchet mechanism may be mounted inside the housing.

The rotating shaft of the non-return device is coaxially connected with the rear output shaft of the motor, for example, through a coupler.

The non-return means may be mounted on the same foundation 100 as the motor.

Preferably, however, the motor is mounted on a foundation (for example, a steel frame, a steel plate, etc., the foundation is further mounted with a support plate 60, the non-return device is located between the motor and the support plate, a casing of the non-return device is suspended, a front end of the casing is connected with the casing of the motor through a disc spring set 30, a rear end of the casing is connected with the support plate through a friction plate set 50, the disc spring set is composed of two opposite disc springs, the disc springs are annular, a hole allowing a rear output shaft of the motor and a rotating shaft of the non-return device to pass through is formed in the center of the disc spring set, one of the disc springs is fixed at the rear end of the casing of the motor, the other disc spring is fixedly mounted at the front end of the casing of the non-return device, the two disc springs are pressed together, pre-pressing force between the two disc springs is set according, the friction plates are preferably annular, one of the friction plates is fixedly arranged at the rear end of the shell of the non-return device, and the other friction plate is arranged on the front surface of the supporting plate. Therefore, when the reverse (backward) torque transmitted by the motor reaches a certain degree and overcomes the static friction torque between the friction plates (and the static friction torque between the disc springs, but is relatively small), the non-return device rotates relative to the support plate to release stress, so that the damage of related parts caused by overlarge torque is avoided.

The support plate may be fixedly mounted on a foundation.

Preferably, however, the base is fixedly provided with a fixing plate 70, the support plate is connected with the base in an articulated manner (for example, by a dovetail-groove-type sliding connection structure) allowing the base to move back and forth, the fixing plate is screwed with an adjusting screw 80 through a screw hole of the fixing plate, and the front end of the adjusting screw is connected with the support plate in an articulated manner allowing the support plate to rotate around the axis of the adjusting screw, for example, the adjusting screw is inserted into a blind hole of the support plate and is in clearance fit with the side wall of the blind hole. The side wall of the inner end of the blind hole is preferably provided with an annular groove, and the front end of the screw is provided with an annular bulge matched with the annular groove, so that the screw is limited from falling out of the blind hole. By rotating the screw rod, the distance between the supporting plate and the fixing plate can be adjusted, so that the pressure between the disc springs is adjusted, and the pressure and the friction force between the friction plates are adjusted.

The rear end of the screw is located behind the fixed plate, preferably provided with a crank 90.

The crank is preferably connected with the rear end of the screw in an inserting mode. For example, the crank is provided with a square through hole, and the rear end of the screw rod is in a square column shape capable of being inserted into the square through hole.

The preferred and optional technical means disclosed in the present invention can be combined arbitrarily to form a plurality of different technical solutions, except for the specific description and the further limitation that one preferred or optional technical means is another technical means.

Claims

1. The film feeding brake device of the film wrapping machine comprises a film feeding motor and is characterized by further comprising a non-return device, wherein the film feeding motor is a double-shaft extension motor, a front output shaft of the double-shaft extension motor is a driving shaft, a rear output shaft of the double-shaft extension motor is a non-return shaft and is used for being connected with the non-return device, and the allowable rotation mode of the non-return device is consistent with the working mode of the motor.

2. The film-on-film brake device of a film-coating machine as claimed in claim 1, wherein said check means comprises a rotating shaft and a housing, and a rear output shaft of said motor is coaxially connected with the rotating shaft of said check means.

3. The film-on-film brake device of the film packaging machine as claimed in claim 2, wherein the non-return device adopts a ratchet mechanism, a ratchet of the ratchet mechanism is arranged on a rotating shaft of the non-return device, and a pawl of the ratchet mechanism is arranged on the inner side of a shell of the non-return device.

4. The film-coating brake device of claim 3, wherein said motor is mounted on a base, a supporting plate is also arranged on the foundation, the non-return device is positioned between the motor and the supporting plate, the shell of the non-return device is suspended, the front end of the shell of the non-return device is connected with the shell of the motor through a disc spring group, the back end of the shell of the non-return device is connected with the supporting plate through a friction plate set, the disc spring set consists of two opposite disc springs, one of the disc springs is fixed at the rear end of the shell of the motor, the other disc spring is fixedly arranged at the front end of the shell of the non-return device, the two disc springs are tightly pressed together, the friction plate group consists of two friction plates which are mutually attached, one of the friction plates is fixedly installed at the rear end of the casing of the non-return device, and the other friction plate is installed on the front surface of the supporting plate.

5. The film-on-film brake apparatus of claim 4, wherein said disc spring is annular and has a hole at the center thereof for allowing the rear output shaft of said motor and the rotating shaft of said check means to pass therethrough.

6. The film-on-film brake apparatus of claim 5, wherein said friction plates are annular.

7. The film-coating brake device of claim 6, wherein a fixing plate is fixedly mounted on the base, the supporting plate is connected with the base in a movable connection manner allowing the supporting plate to move back and forth, an adjusting screw is screwed on the fixing plate, and the front end of the adjusting screw is connected with the supporting plate in a movable connection manner allowing the supporting plate to rotate around the axis of the adjusting screw.

8. The film-coating brake device of claim 7, wherein the front end of the adjusting screw is inserted into the blind hole on the rear surface of the supporting plate and is in clearance fit with the side wall of the blind hole.

9. The film-coating brake device of claim 8, wherein the inner end of said blind hole has a circular groove on its side wall, and the front end of said screw has a circular protrusion engaged with said circular groove.

10. The film-coating brake device of the film-coating machine as claimed in claim 9, wherein the rear end of said screw rod is located behind said fixed plate and provided with a crank.