CN215854108U

CN215854108U - PET film power conveying mechanism for film processing

Info

Publication number: CN215854108U
Application number: CN202122062320.8U
Authority: CN
Inventors: 王文良; 季玉秋
Original assignee: SHANGHAI ALLECARD IMAGE MATERIAL CO LTD
Current assignee: SHANGHAI ALLECARD IMAGE MATERIAL CO LTD
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-02-18
Anticipated expiration: 2031-08-30

Abstract

A PET film power conveying mechanism for film processing relates to the technical field of film processing, and comprises a fixed frame, a power roller, a driven conveying roller and a driving motor, wherein the power roller and the driven conveying roller are rotatably arranged on the fixed frame; the mechanical pressing scram device is arranged right above the power roller and can do lifting reciprocating motion relative to the power roller so as to realize the arrangement of attaching to the surface of the power roller; the power source emergency stop device is arranged on the driving motor to control the power-on/power-off state of the driving motor, and the utility model reduces the possibility that a PET film between the power conveying mechanism and the guide conveying mechanism is stretched to generate deformation or damage on the premise that the power roller stops rotating instantly.

Description

PET film power conveying mechanism for film processing

Technical Field

The utility model relates to the technical field of power module packaging, in particular to a PET film power conveying mechanism for film processing.

Background

The main raw material of the PET film is polyethylene terephthalate (PET for short), and the PET film is soft and has certain stretchability. PET films are widely used for printing medical imaging reports, or company-related logos, trademarks, advertisements, technical data, and the like, due to their characteristics of high temperature resistance, being not easily melted, being easily peeled, and having no residue after being peeled from the surface of an exploded product. PET film should be protected from contamination, scratching, erosion and breakage from the outside during processing, storage and installation.

In the production process, the coiled and packaged raw material PET film needs to be discharged through a discharging production line, then functional layers are coated on two surfaces of the PET film, and then the PET film is heated and dried, and finally the PET film with large size and small size is formed on cutting equipment according to a certain size. In the blowing process, the blowing production line is generally including the PET membrane unwinding device that sets gradually, direction conveying mechanism and power unit, former material PET membrane is around establishing on PET membrane unwinding device, direction conveying mechanism is as middle transition device, including a plurality of guide rolls that are used for twining the PET membrane, power unit is as the device of pulling PET membrane motion, including power roller and drive roller pivoted motor, the motor during operation, the power roller is rotatory, under the effect of guide roll, realize unreeling and carrying the former material PET membrane on PET membrane unwinding device gradually.

However, if the factory building needs the transport during operation of quick stop PET membrane, generally to the blowing production line outage, just can cause the motor stop work among the power unit, under the inertia effect, power roller and guide roll continue to rotate, can lead to the PET membrane between direction conveying mechanism and the power roller to be stretched, inside production stress variation, thereby cause certain damage, this part PET membrane continues to carry out the quality that subsequent handling just can influence final PET film after the factory building continues to supply power, consequently, the existence is treated the improvement part.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a PET film power conveying mechanism for film processing, which comprises the following specific scheme:

a PET film power conveying mechanism for film processing comprises a fixing frame, a power roller, a driven conveying roller and a driving motor, wherein the power roller and the driven conveying roller are rotatably mounted on the fixing frame, the surface of the power roller is in contact with the driven conveying roller, the driving motor is fixedly mounted on the fixing frame, an output shaft of the driving motor is in transmission connection with the power roller, the power conveying mechanism further comprises a power source emergency stop device, a mechanical pressure applying emergency stop device and a control host, the control host is mounted on one side of the fixing frame, and the mechanical pressure applying emergency stop device and the power source emergency stop device are electrically connected with the control host;

the mechanical pressing emergency stop device is arranged right above the power roller and can do lifting reciprocating motion relative to the power roller so as to realize the arrangement of attaching to the surface of the power roller;

the power source emergency stop device is mounted on the driving motor to control the power-on/off state of the driving motor.

Furthermore, the power source emergency stop device comprises a control switch, a motor power supply and an auxiliary button arranged on the control host, wherein the auxiliary button is electrically connected with the control switch, and the control switch is electrically connected with the motor power supply.

Furthermore, mechanical pressure applying emergency stop device includes pressure roller, pressure roller lifting unit is in the interval is provided with two on the mount, the both ends of pressure roller are passed through respectively the roller rotates to be installed in pressure roller lifting unit, and the surface of pressure roller form be used for with power roller complex pressure surface.

Further, the pressure roller comprises a roller body and a deformable friction layer, and the deformable friction layer is sleeved on the outer surface of the roller body.

Further, the pressure roller lifting assembly comprises a driving cylinder, a moving block and a limiting frame, a mounting hole matched with the roller shaft is formed in the moving block, the moving block is arranged in the limiting frame in a sliding mode, and the free end of the driving cylinder is in transmission connection with the moving block.

Furthermore, a pressure sensor is embedded in the deformable friction layer and provided with a pressure limit value;

the pressure sensor is electrically connected with the input end of the control host, and the output end of the control host is electrically connected with the driving cylinder.

Further, the pressure sensor is provided in plurality in the axial direction of the deformable friction layer.

Compared with the prior art, the utility model has the following beneficial effects:

(1) in the blowing production line of PET membrane, this device sets up in PET membrane unwinding device, direction conveying mechanism's the forefront, and the blowing production line is normal during operation, and the PET membrane is under driven conveying roller, and driving motor circular telegram drives the power roller and rotates, and the rotary motion of power roller drives driven conveying roller rotatory to will follow the PET membrane pulling under the effect of frictional force, displacement gradually. When the factory building needs the transport work of quick stop PET membrane, the staff exerts the scram device to machinery through the control host computer, the command is exerted to power supply scram device, at first power supply scram device cuts off the power supply to driving motor, driving motor stall, the power supply is lost to the power roller, the relative mount of mechanical pressure application scram device is the descending movement who is close to the power roller simultaneously, constantly exert pressure to the surface of power roller, this partial pressure and power roller suddenly stop rotatory inertia force that produces and balance each other, thereby make the power roller stop fast rotatory jointly, stop driving driven conveying roller in the twinkling of an eye and carry the PET membrane.

In summary, on the premise that the power roller stops rotating instantly, the possibility that the PET film between the power conveying mechanism and the guide conveying mechanism is stretched to generate deformation or damage is reduced.

Drawings

FIG. 1 is an overall schematic diagram of an embodiment of the present invention;

FIG. 2 is a side view of the present invention showing the positional relationship between the winding direction of the PET film and the power transmission mechanism;

FIG. 3 is an enlarged view of a portion A of FIG. 1;

FIG. 4 is a simplified schematic diagram of a power source scram device showing a connection relationship.

Reference numerals: 1. a fixed mount; 2. a power roller; 3. a driven delivery roll; 4. a drive motor; 5. a pressure sensor; 6. a power source emergency stop device; 61. a control switch; 62. a motor power supply; 63. an auxiliary button; 7. a control host; 8. a mechanical pressing scram device; 81. a pressure roller; 811. a roller body; 812. a deformable friction layer; 82. a roll shaft; 83. a pressure roll lifting assembly; 831. a driving cylinder; 832. a moving block; 833. a limiting frame.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.

With reference to fig. 1 and 2, a PET film power transmission mechanism for film processing is used for a PET film emptying production line, and in the PET film emptying production line, the PET film power transmission mechanism, a guide transmission mechanism and a PET film unwinding device are sequentially arranged, and the guide transmission mechanism and the PET film unwinding device are in the prior art. When the emptying production line normally works, under the pulling of the power conveying mechanism, the PET film released by the PET film unwinding device is guided and unfolded by the guide conveying mechanism, and finally is sent to equipment behind the emptying production line for subsequent processes.

Power conveying mechanism specifically includes mount 1, power roller 2, driven conveying roller 3, driving motor 4, power roller 2, driven conveying roller 3 all rotates and installs on mount 1, the two sets up about being, and the surface of power roller 2 and the contact setting of driven conveying roller 3, 4 fixed mounting of driving motor are on mount 1, and connecting pieces such as driving motor 4's output shaft accessible reducing gear box are connected with the transmission of power roller 2, the PET membrane that comes out from direction conveyor is by the height to low below and the mutual contact through driven conveying roller 3, leave from low to high from driven conveying roller 3 again. When driving motor 4 drove power roller 2 and rotate, driven conveying roller 3 also can rotate under power roller 2's drive to drive the PET membrane and displace gradually along same direction, realize the continuity production of factory building.

When a sudden situation occurs in a factory building and a emptying production line is required to stop conveying PET films, the prior art generally adopts a power-off mode directly, however, when the driving motor 4 stops rotating after being powered off, the power roller 2 can also rotate at a certain angle under the action of inertia, therefore, in the utility model, the power conveying mechanism further comprises a power source emergency stop device 6, a mechanical pressing emergency stop device 8 and a control host 7, and the effect of quickly braking the power conveying mechanism is achieved through the cooperation of the three devices. The control host 7 is installed on one side of the fixing frame 1, the mechanical pressing scram device 8 and the power source scram device 6 are electrically connected with the control host 7, and a worker can control the mechanical pressing scram device 8 and the power source scram device 6 only by operating on the control host 7.

The driving motor 4 is used as a power source of the power roller 2, when the PET film conveying operation needs to be stopped, the driving motor 4 is firstly controlled to stop rotating, therefore, the power source emergency stop device 6 is installed on the driving motor 4 to control the power-on/power-off state of the driving motor 4, the whole discharging production line does not need to be powered off, and the driving motor 4 is powered off.

Combine fig. 2 and fig. 4, power supply scram device 6 includes control switch 61, motor power 62 and the auxiliary button 63 of setting on control host 7, motor power 62 is through the total power supply that inserts in the factory building to driving motor 4 power supply, auxiliary button 63 is connected with control switch 61 electricity, control switch 61 is connected with motor power 62 electricity, the staff only needs to press auxiliary button 63, alright disconnection control switch 61, motor power 62 no longer inserts total power, make driving motor 4 outage, make power roller 2 lose the power supply.

With reference to fig. 1 and 2, in order to overcome the inertia effect of the power roller 2, the mechanical pressing emergency stop device 8 is installed right above the power roller 2 and can perform lifting reciprocating motion relative to the power roller 2 to realize the arrangement of attaching to the surface of the power roller 2, and when the mechanical pressing emergency stop device 8 is not used, a certain distance can exist between the mechanical pressing emergency stop device and the power roller 2, and when the mechanical pressing emergency stop device is used, a certain resistance is provided for the power roller 2 under the action of friction force. In detail, the mechanical pressing scram device 8 includes two pressure rollers 81, a roller 82, and two pressure roller lifting assemblies 83, the two pressure roller lifting assemblies 83 are disposed on the fixing frame 1 at intervals, two ends of each pressure roller 81 are respectively rotatably mounted in the different pressure roller lifting assemblies 83 through the roller 82, each pressure roller lifting assembly 83 includes a driving cylinder 831, a moving block 832 and a limiting frame 833, the whole limiting frame 833 is u-shaped, the limiting frame 833 is fixedly mounted on the top surface of the fixing frame 1, a space for the moving block 832 to move is formed between the fixing frame 1 and the moving frame 833, the moving block 832 is slidably disposed in the limiting frame 833, a mounting hole matched with the roller 82 is formed in the moving block 832, and a free end of the driving cylinder 831 is in transmission connection with the moving block 832. When the driving cylinder 831 extends and contracts, the moving block 832 is driven to move downwards and upwards relative to the stopper 833.

Pressure roller 81 includes roll body 811 and deformable friction layer 812, the surface cover of roll body 811 is equipped with deformable friction layer 812, deformable friction layer 812 can adopt the rubber that the surface has the dull polish effect, through setting up deformable friction layer 812, form the face of exerting pressure that is used for with power roller 2 complex on the surface of pressure roller 81, the face of exerting pressure is along with the downward movement of pressure roller 81, produce frictional force with the surface contact of power roller 2, this partial pressure and power roller 2 stop the inertia force that the rotation produced suddenly, thereby make power roller 2 stop rotatory fast jointly, stop driving driven conveying roller 3 at the twinkling of an eye and carry the PET membrane.

As shown in fig. 3, a pressure sensor 5 is embedded in the deformable friction layer 812, a plurality of pressure sensors 5 are arranged along the axial direction of the deformable friction layer 812 to prevent one of the pressure sensors from being broken down, and the pressure sensors are used for monitoring the pressure generated after the deformable friction layer 812 is squeezed by the power roller 2, so that the pressure applied by the pressure roller 81 to the reagent of the power roller 2 can be known, the pressure sensor 5 is provided with a pressure limit value, the pressure limit value can be determined according to the rotating speed and the inertia force of the power roller 2, the initially set rotating speed of the power roller 2 is higher, the inertia force is higher, and the pressure limit value can be set to be a larger value.

When the driving cylinder 831 drives the power roller 2 to move downwards, the pressure value of the pressure sensor 5 is gradually increased, the driving cylinder 831 can automatically stop after moving downwards for a certain travel for controlling, the pressure sensor 5 is electrically connected with the input end of the control host 7, the output end of the control host 7 is electrically connected with the driving cylinder 831, and after the pressure sensor 5 reaches the pressure limit value, the pressure sensor is fed back to the control host 7, and the control host 7 can control the driving cylinder 831 to stop working.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. A PET film power transmission mechanism for film processing comprises a fixed frame (1), a power roller (2), a driven transmission roller (3) and a driving motor (4), the power roller (2) and the driven conveying roller (3) are both rotationally arranged on the fixed frame (1), and the surface of the power roller (2) is contacted with the driven conveying roller (3), the driving motor (4) is fixedly arranged on the fixed frame (1), and the output shaft of the driving motor (4) is in transmission connection with the power roller (2), it is characterized in that the power conveying mechanism also comprises a power source emergency stop device (6), a mechanical pressing emergency stop device (8) and a control host machine (7), the control host (7) is arranged on one side of the fixed frame (1), and the mechanical pressing scram device (8) and the power source scram device (6) are electrically connected with the control host (7);

the mechanical pressing scram device (8) is arranged right above the power roller (2) and can do lifting reciprocating motion relative to the power roller (2) so as to be attached to the surface of the power roller (2);

the power source emergency stop device (6) is installed on the driving motor (4) to control the power-on/off state of the driving motor (4).

2. The PET film power feeding mechanism for film processing according to claim 1, wherein the power source emergency stop device (6) comprises a control switch (61), a motor power source (62), and an auxiliary button (63) provided on the control host (7), the auxiliary button (63) is electrically connected with the control switch (61), and the control switch (61) is electrically connected with the motor power source (62).

3. The PET film power feeding mechanism for film processing according to claim 1, wherein the mechanical pressing emergency stop device (8) comprises a pressure roller (81), a roller shaft (82), and two pressure roller lifting assemblies (83), the two pressure roller lifting assemblies (83) are arranged on the fixed frame (1) at intervals, two ends of the pressure roller (81) are respectively rotatably installed in the pressure roller lifting assemblies (83) through the roller shaft (82), and the surface of the pressure roller (81) forms a pressing surface for cooperating with the power roller (2).

4. The PET film power feeding mechanism for film processing according to claim 3, wherein the pressure roller (81) includes a roller body (811) and a deformable friction layer (812), and an outer surface of the roller body (811) is sheathed with the deformable friction layer (812).

5. The PET film power transmission mechanism for film processing according to claim 4, wherein the pressure roller lifting assembly (83) comprises a driving cylinder (831), a moving block (832) and a limit frame (833), the moving block (832) is provided with a mounting hole matched with the roller shaft (82), the moving block (832) is slidably arranged in the limit frame (833), and the free end of the driving cylinder (831) is in transmission connection with the moving block (832).

6. The PET film power transmission mechanism for film processing according to claim 5, wherein a pressure sensor (5) is embedded in the deformable friction layer (812), and the pressure sensor (5) is provided with a pressure limit value;

the pressure sensor (5) is electrically connected with the input end of the control host (7), and the output end of the control host (7) is electrically connected with the driving air cylinder (831).

7. The PET film power feeding mechanism for film processing according to claim 6, wherein the pressure sensor (5) is provided in plurality in the axial direction of the deformable friction layer (812).