Winding mechanism for film tearing

Abstract

The utility model relates to a winding mechanism for tearing a film, which belongs to the technical field of waste film winding and comprises a mounting plate, an air swelling shaft, a magnetic powder clutch, a speed regulating motor and a monitoring component, and the air swelling shaft, the magnetic powder clutch, the speed regulating motor and the monitoring component are mounted on the mounting plate. The magnetic powder clutch and the speed regulating motor are connected and located on the same side of the mounting plate, the air swelling shaft is located on the other side of the mounting plate and used for winding waste films, and the magnetic powder clutch is used for controlling tensioning of the air swelling shaft; the monitoring assembly and the air swelling shaft are located on the same side, the monitoring assembly is located above the air swelling shaft, and the monitoring assembly is used for monitoring the winding pressure of the waste film wound around the air swelling shaft. According to the waste film winding device, accurate adjustment of the waste film winding tension can be achieved, it is ensured that the proper tension is kept in the waste film winding process, and the waste film collecting efficiency is improved; the waste film is uniformly and tightly wound on the air swelling shaft in the winding process, so that the diameter of each waste film roll is more consistent, and the situation that the winding shaft needs to be frequently replaced due to the overlarge winding diameter is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to waste film winding technical field, concretely relates to a winding mechanism for tearing film. BACKGROUND

[0002] In the roll processing and packaging printing industry, a layer of protective film or temporary covering film is often needed to be covered on the surface of the roll to protect the roll from pollution or damage during transportation, storage and processing. In particular, before printing, this film needs to be torn off to ensure the printing quality. However, the treatment of the waste film torn off has become a problem to be solved.

[0003] At present, most of the waste film collection mechanisms on the market adopt a simple structure, that is, a normal winding shaft is matched with a normal motor as a power source, the winding shaft is rotated by the rotation of the motor, thereby realizing the collection of waste film. Although this mechanism can meet the basic waste film collection needs to some extent, it has exposed a series of problems in actual application.

[0004] Firstly, the existing waste film collection mechanism generally lacks tension adjustment function. Due to the differences in material, thickness and winding speed of the waste film and other factors, the winding tension is often uncontrollable during winding, thereby causing the waste film to be unevenly wound and loose. This not only reduces the collection efficiency of the waste film, but also makes the diameter of the collected waste film roll too large, which needs to be frequently replaced, increasing the labor intensity and time cost of the operator.

[0005] Therefore, in view of the above problems existing in the existing waste film collection mechanism, it is necessary to design a new type of winding mechanism for tearing film to improve the collection efficiency of the waste film and reduce the operation difficulty. INVENTION CONTENTS

[0006] In order to solve the above problems existing in the prior art, the utility model provides a winding mechanism for tearing film, which solves the problem that the existing waste film collection mechanism generally lacks tension adjustment function, reduces the collection efficiency of the waste film, and also makes the diameter of the collected waste film roll too large, which needs to be frequently replaced.

[0007] The purpose of the utility model can be realized by the following technical solutions:

[0008] A winding mechanism for tearing film, comprising a mounting plate and a gas expansion shaft, a magnetic powder clutch, a speed regulating motor and a monitoring assembly mounted on the mounting plate; the magnetic powder clutch is connected with the speed regulating motor and located on the same side of the mounting plate, and the gas expansion shaft is located on the other side of the mounting plate, the gas expansion shaft is used for winding waste film, and the magnetic powder clutch is used for controlling the tension of the gas expansion shaft;

[0009] The monitoring assembly is located on the same side of the air expanding shaft and above the air expanding shaft, and is used for monitoring the winding pressure of the waste film wound on the air expanding shaft.

[0010] Preferably, the monitoring assembly comprises a mounting shaft, an adjusting rod and a monitoring wheel; the mounting shaft is mounted on the mounting plate, one end of the adjusting rod is arranged on the mounting shaft, and the other end of the adjusting rod is connected with the monitoring wheel; the monitoring wheel is in contact with the waste film wound on the air expanding shaft.

[0011] Preferably, the monitoring assembly further comprises a control unit, the monitoring wheel is provided with a pressure sensor, the pressure sensor is electrically connected with the control unit, the pressure sensor is used for monitoring the pressure of the waste film wound on the air expanding shaft and uploading the pressure value to the control unit, the speed regulating motor is electrically connected with the control unit, and the control unit drives the speed regulating motor to adjust the torque according to the pressure value uploaded by the pressure sensor.

[0012] Preferably, the number of the adjusting rods is at least two groups, and any adjusting rod is connected with the monitoring wheel.

[0013] Preferably, the adjusting rod comprises a hollow guide column and a spring piece; the guide column is arranged on the mounting shaft, the spring piece is mounted in the hollow of the guide column, and the spring piece is connected with the monitoring wheel; the spring piece is used for adapting to the winding diameter of the waste film.

[0014] Preferably, the mounting shaft is detachably connected with the mounting plate.

[0015] The utility model discloses the beneficial effect is:

[0016] The application can realize the accurate adjustment of the waste film winding tension, the magnetic powder clutch can control the tensioning degree of the air expanding shaft, ensure that the waste film maintains proper tension in the winding process, and avoid the problem of waste film relaxation, because of the tension adjustment function, the waste film is tightly wound on the air expanding shaft under proper tension, the gap between the waste films is reduced, and the waste film collection efficiency is improved, the waste film is uniformly and tightly wound on the air expanding shaft in the winding process, the diameter of each waste film roll is more consistent, the situation that the winding shaft needs to be frequently replaced due to the too large winding diameter is reduced, not only the operation cost is reduced, but also the continuous working capacity of the winding mechanism is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in combination with the drawings.

[0018] Fig. 1 The utility model provides a winding mechanism three-dimensional structure schematic diagram in an embodiment;

[0019] Fig. 2The monitoring assembly installation structure schematic view provided in one embodiment of the utility model;

[0020] Fig. 3 The monitoring assembly structure schematic view provided in one embodiment of the utility model;

[0021] Legend: 1, mounting plate; 2, gas expansion shaft; 3, magnetic powder clutch; 4, speed regulating motor; 5, monitoring assembly; 51, mounting shaft; 52, adjusting rod; 53, monitoring wheel; 6, pressure sensor. DETAILED DESCRIPTION

[0022] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0023] As Figs. 1-3 shown, a winding mechanism for film tearing, comprising a mounting plate 1 and a gas expansion shaft 2, a magnetic powder clutch 3, a speed regulating motor 4 and a monitoring assembly 5 mounted on the mounting plate 1; the magnetic powder clutch 3 is connected with the speed regulating motor 4 and located on the same side of the mounting plate 1, the gas expansion shaft 2 is located on the other side of the mounting plate 1, the gas expansion shaft 2 is used for winding waste film, and the magnetic powder clutch 3 is used for controlling the tension of the gas expansion shaft 2; the monitoring assembly 5 is located on the same side of the gas expansion shaft 2 and above the gas expansion shaft 2, and the monitoring assembly 5 is used for monitoring the winding pressure of the waste film wound on the gas expansion shaft 2.

[0024] Firstly, after the waste film is torn off, it is connected to the gas expansion shaft 2, the gas expansion shaft 2 is expanded through the internal air pressure device, tightly clamps the waste film, and thus the winding process is started; the gas expansion shaft 2 enables the waste film to be tightly and neatly wound thereon, avoiding the problem of loose waste film; secondly, the magnetic powder clutch 3 is connected with the speed regulating motor 4, by adjusting the amount of magnetic powder in the magnetic powder clutch 3, the torque transmitted to the gas expansion shaft 2 can be controlled, and thus the winding tension is adjusted; so that the winding mechanism can flexibly adjust the winding tension according to factors such as the material, thickness and winding speed of the waste film, and ensure that the waste film is wound neatly and tightly;

[0025] At the same time, the monitoring assembly 5 is located above the gas expansion shaft 2 and is used for monitoring the winding pressure of the waste film wound on the gas expansion shaft 2 in real time, through monitoring the winding pressure, the winding tightness and the diameter of the waste film can be indirectly reflected, and feedback adjustment is formed with the magnetic powder clutch 3, so that the winding of the waste film is automatically adjusted during the winding process, and the winding of the waste film is more smooth.

[0026] In summary, the application can realize accurate adjustment of the winding tension of the waste film, the magnetic powder clutch 3 can control the tensioning degree of the inflatable shaft 2, ensure that the waste film maintains appropriate tension during winding, and avoid the problem of waste film relaxation; due to the tension adjustment function, the waste film is tightly wound on the inflatable shaft 2 under appropriate tension, reducing the gap between the waste films, thereby improving the collection efficiency of the waste film; the waste film is uniformly and tightly wound on the inflatable shaft 2 during winding, so that the diameter of each waste film roll is more consistent, reducing the need to frequently replace the winding shaft due to excessively large roll diameter, not only reducing the operation cost, but also improving the continuous working capacity of the winding mechanism.

[0027] In an embodiment, the monitoring assembly 5 includes a mounting shaft 51, an adjusting rod 52 and a monitoring wheel 53; the mounting shaft 51 is mounted on the mounting plate 1, the adjusting rod 52 is provided at one end of the mounting shaft 51 and connected with the monitoring wheel 53 at the other end; the monitoring wheel 53 is in contact with the waste film wound on the inflatable shaft 2; during winding, the waste film is tightly wound on the inflatable shaft 2; at this time, the monitoring wheel 53 is in direct contact with the waste film wound on the inflatable shaft 2, the winding pressure of the waste film is monitored through the interaction force between the monitoring wheel 53 and the waste film, as the waste film is continuously wound, the roll diameter gradually increases, and the pressure of the waste film on the monitoring wheel 53 also changes, so as to ensure that the monitoring wheel 53 always maintains good contact with the waste film; further, the monitoring wheel 53 and the adjusting rod 52 are rotationally connected, reducing the friction between the monitoring wheel 53 and the waste film.

[0028] In an embodiment, a control unit is further included, the monitoring wheel 53 is provided with a pressure sensor 6, the pressure sensor 6 is electrically connected with the control unit, the pressure sensor 6 is used for monitoring the pressure of the inflatable shaft 2 winding the waste film and uploading to the control unit, the speed regulating motor 4 is electrically connected with the control unit, the control unit drives the speed regulating motor 4 to adjust the torque according to the pressure value uploaded by the pressure sensor 6; the pressure sensor 6 provided on the monitoring wheel 53 monitors the pressure value in real time when the inflatable shaft 2 winds the waste film, the pressure value reflects the tightness between the waste film roll and the inflatable shaft 2, as well as the dynamic change in the waste film winding process, the pressure sensor 6 uploads the monitored pressure value to the control unit in the form of electrical signal; the control unit analyzes the received pressure value in real time and compares it with the preset threshold value; if the pressure value exceeds or is lower than the preset threshold value, the control unit will make a corresponding decision to adjust the winding tension of the waste film, according to the decision of the control unit, the speed regulating motor 4 receives the corresponding instruction and adjusts its output torque, the adjustment of the torque will directly affect the magnetic powder clutch 3, and then cause the tension change in the waste film winding process, so as to realize the adjustment of the winding pressure of the waste film; the adjusted torque will act on the waste film winding process again, forming a new pressure value, which will be monitored again by the pressure sensor 6 and uploaded to the control unit, forming a closed-loop feedback system.

[0029] In an embodiment, the number of adjusting rods 52 is at least two groups, and any adjusting rod 52 is connected with a monitoring wheel 53; the multiple groups of monitoring wheels 53 and adjusting rods 52 can monitor the waste film in real time from multiple positions, ensuring that the state of the waste film in the entire winding process is fully mastered, and such comprehensiveness helps to discover and solve potential winding problems in time, such as waste film relaxation, breakage or uneven winding, etc.

[0030] In an embodiment, the adjusting rod 52 comprises a hollow guide column and a spring member; the guide column is arranged on the mounting shaft 51, and the spring member is arranged in the hollow of the guide column and connected with the monitoring wheel 53; the spring member is used to adapt to the winding diameter of the waste film; before the waste film winding starts, the spring member is in a natural elongation state, and an initial gap is maintained between the monitoring wheel 53 and the inflatable shaft 2, ensuring that the monitoring wheel 53 can smoothly contact and adapt to the thickness of the waste film when the waste film starts to be wound; when the waste film starts to be wound on the inflatable shaft 2, as the winding diameter gradually increases, the pressure of the waste film on the monitoring wheel 53 also increases, and the pressure is transmitted to the spring member through the monitoring wheel 53, causing the spring member to be compressed; during the compression of the spring member, the spring force gradually increases, generating a reverse thrust on the monitoring wheel 53. This thrust balances the pressure of the waste film on the monitoring wheel 53, thereby ensuring that the monitoring wheel 53 always maintains a stable contact state with the waste film; as the winding diameter of the waste film continuously increases, the compression degree of the spring member also gradually deepens; the monitoring wheel 53 can automatically adapt to waste film rolls of different diameters, without the need for manual adjustment to maintain stable monitoring effect; the pressure sensor 6 arranged on the monitoring wheel 53 monitors the pressure change in the waste film winding process in real time and uploads the data to the control unit. According to the received data, the control unit adjusts the output torque by driving the speed regulating motor 4, thereby realizing precise control of the waste film winding tension.

[0031] In an embodiment, the mounting shaft 51 and the mounting plate 1 are detachably connected; the detachable connection makes the connection between the mounting shaft 51 and the mounting plate 1 simple and fast, and when a fault occurs or maintenance is needed, they can be easily detached for replacement or repair, which not only reduces maintenance cost but also improves work efficiency.

[0032] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above-mentioned technical content without departing from the technical solution of the present application, and any equivalent embodiments with equivalent changes and modifications are still within the scope of the technical solution of the present application.

Claims

1. A winding mechanism for film tearing, characterized by, The application relates to a waste film winding device, which comprises a mounting plate and a gas expansion shaft, a magnetic powder clutch, a speed regulating motor and a monitoring assembly mounted on the mounting plate; the magnetic powder clutch is connected with the speed regulating motor and located on the same side of the mounting plate, the gas expansion shaft is located on the other side of the mounting plate, the gas expansion shaft is used for winding waste film, and the magnetic powder clutch is used for controlling the tension of the gas expansion shaft. The monitoring assembly is located on the same side of the gas expansion shaft and above the gas expansion shaft, and is used for monitoring the winding pressure of the waste film wound on the gas expansion shaft.

2. A winding mechanism for film tearing according to claim 1, characterized in that, The monitoring assembly comprises a mounting shaft, an adjusting rod and a monitoring wheel; the mounting shaft is mounted on the mounting plate, one end of the adjusting rod is arranged on the mounting shaft, and the other end of the adjusting rod is connected with the monitoring wheel; the monitoring wheel is in contact with the waste film wound on the gas expansion shaft.

3. A winding mechanism for film tearing according to claim 2, characterized in that, The monitoring assembly further comprises a control unit, the monitoring wheel is provided with a pressure sensor, the pressure sensor is electrically connected with the control unit, the pressure sensor is used for monitoring the pressure of the waste film wound on the gas expansion shaft and uploading the pressure value to the control unit, the speed regulating motor is electrically connected with the control unit, and the control unit drives the speed regulating motor to adjust the torque according to the pressure value uploaded by the pressure sensor.

4. A winding mechanism for film tearing according to claim 3, characterized in that, The number of the adjusting rods is at least two groups, and any adjusting rod is connected with the monitoring wheel.

5. A winding mechanism for film tearing according to claim 4, characterized in that, The adjusting rod comprises a hollow guide column and a spring piece; the guide column is arranged on the mounting shaft, the spring piece is mounted in the hollow of the guide column, and the spring piece is connected with the monitoring wheel; and the spring piece is used for adapting to the winding diameter of the waste film.

6. A winding mechanism for film tearing according to claim 2, characterized in that, The mounting shaft is detachably connected with the mounting plate.

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