CN201244947Y - Automatic dyestripping machine for LCD display module polaroid - Google Patents

Abstract

The utility model relates to an automatic film tearing machine for a polarizer of a liquid crystal display module. It includes: a base, a driven wheel assembly, a driving wheel assembly, a tear film assembly, a detection assembly and an electric control assembly. The film tearing assembly consists of a base plate, a fixed baffle and a pulley. The base plate is fixedly connected above the driven wheel bracket and maintains a vertical relationship with it. The base plate is kept horizontally inclined. The fixed baffle is fixedly connected above the base plate and maintained In a vertical relationship with the surface, the bottom of the fixed baffle has a gap through which the polarizer can pass, at least one pulley is provided inside the substrate below the gap, and a pulley is also provided at the end of the substrate. The beneficial effect of the utility model is that the machine provided by the utility model changes the operation process of tearing off the transparent protective film on the polarizer (PF) from manual to automatic, which can improve the patching efficiency and reduce operators.

Description

LCD module polarizer automatic film tearing machine

technical field

The utility model belongs to auxiliary operation equipment in the production process of a liquid crystal display module (LCM), in particular to an automatic film tearing machine which can automatically tear off a transparent protective film on a polarizer (PF) of a liquid crystal display module.

Background technique

At present, in the production process of small and medium-sized liquid crystal display modules (LCM) products in China, in the process of pasting polarizers (PF), all of them adopt low-efficiency methods such as manual sticking and patching; after successful sticking, Before attaching the polarizer (PF), the transparent protective film on the polarizer (PF) must also be torn off manually. The manual operation method in the prior art has the disadvantages of low patching efficiency, slow response speed, and the need for more operators.

Utility model content

The purpose of this utility model is to provide an automatic film tearing machine for polarizers of liquid crystal display modules aiming at the above-mentioned deficiencies of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical solutions: an automatic film tearing machine for the polarizer of a liquid crystal display module, comprising:

base;

A driven wheel assembly, the driven wheel assembly is composed of a driven wheel bracket, a driven wheel movably connected to one side of the driven wheel bracket and a pulley, and the driven wheel bracket is fixedly connected to the base;

The driving wheel assembly is composed of a driving wheel bracket, a driving wheel and a servo motor respectively located on both sides of the driving wheel bracket, the servo motor is fixedly connected to the driving wheel bracket, and the driving wheel is movably connected to the servo motor;

The film tearing assembly is composed of a base plate, a fixed baffle and a pulley. The base plate is fixedly connected above the driven wheel bracket and maintains a vertical relationship with it. The base plate is kept horizontally inclined. The fixed baffle is fixedly connected above the base plate and connected Keeping the vertical relationship, the bottom of the fixed baffle has a notch through which the polarizer can pass, at least one pulley is provided inside the substrate below the notch, and a pulley is also provided at the end of the substrate.

The detection component is composed of a photoelectric switch bracket and a photoelectric switch, and the photoelectric switch bracket is fixedly connected to the end of the substrate.

The electric control component is composed of a motor control circuit and a detection control circuit, the motor control circuit is electrically connected to the servo motor of the driving wheel assembly, and the detection control circuit is electrically connected to the photoelectric switch of the detection component, which is used for automatic control of the above components. The electric control assembly is fixed on the base.

The working process of the utility model: first place a stack of polarizers (PF) neatly in front of the fixed baffle on the tearing film assembly, and at the same time install the tape on the driven wheel on the driven wheel assembly, and the tape passes through the driven wheel assembly The pulley on the upper part is connected to the pulley on the substrate of the tear film assembly and the pulley at the end of the substrate is connected to the driving wheel, with the adhesive side up; turn on the power; the servo motor driving wheel starts to run, the tape starts to move with the driving wheel, and the polarizer (PF) starts to stick Attached to the adhesive surface of the tape and run with the tape one by one, when the polarizer (PF) is close to the edge of the substrate, the transparent protective film of the polarizer (PF) and the polarizer (PF) begin to separate; when the transparent protective film and the polarizer (PF) When the separation of the polarizer (PF) reaches half of the entire polarizer (PF), the sensor of the photoelectric switch of the detection component starts to sense; when sensing, the servo motor stops running immediately after receiving a signal, and the automatic film removal of a polarizer (PF) is completed , and so on, a large number of polarizers (PF) are automatically removed from the film. The beneficial effect of the utility model is that the machine provided by the utility model changes the operation process of tearing off the transparent protective film on the polarizer (PF) from manual to automatic, which can improve the patching efficiency and reduce operators.

Description of drawings

Fig. 1 is a working principle diagram of the utility model.

Fig. 2 is a three-dimensional structure diagram of the utility model.

Fig. 3 is a top view of the utility model.

Fig. 4 is a schematic diagram of the motor control circuit of the present invention.

Fig. 5 is a schematic diagram of the detection control circuit of the present invention.

Explanation of reference numerals: base 1, driving wheel assembly 2, driving wheel bracket 21, driving wheel 22, servo motor 23, driven wheel assembly 3, driven wheel bracket 31, driven wheel 32, pulley 33, film tearing assembly 4, substrate 41 , fixed baffle 42, gap 421, movable baffle 43, pulley 44, detection assembly 5, photoelectric switch bracket 51, photoelectric switch 52, electric control assembly 6, polarizer 7, transparent protective film 71, adhesive tape 8.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.

The structural layout of the utility model is described in conjunction with Fig. 1, Fig. 2 and Fig. 3. The automatic film tearing machine for the polarizer of the liquid crystal display module includes:

base1;

Driven wheel assembly 3, driven wheel assembly 3 is made up of driven wheel support 31, driven wheel 32 and pulley 33 movably connected on one side of driven wheel support 31, driven wheel support 31 is fixedly connected on the base 1, and pulley 33 is on driven wheel 32 One is respectively distributed on the upper and lower sides of the upper and lower sides, and is fixedly connected on the driven wheel bracket 31.

The driving wheel assembly 2 is made up of a driving wheel bracket 21, a driving wheel 22 and a servo motor 23 respectively located on both sides of the driving wheel bracket 21, the servo motor 23 is fixedly connected to the driving wheel bracket 21, and the driving wheel 22 is flexibly connected to the servo motor through a speed changer. On the motor 23.

Tear film assembly 4, is made up of base plate 41, fixed baffle plate 42, movable baffle plate 43 and pulley 44, and base plate 41 is fixedly connected on the top of driven wheel support 31 and maintains the perpendicular relation with it, and base plate 41 keeps horizontal tilt, and fixed baffle plate The plate 42 is fixedly connected to the top of the base plate 41 and maintains a vertical relationship with it. The bottom of the fixed baffle plate 42 has a gap 421 through which the polarizer can pass, and there is at least one pulley 44 inside the base plate 41 below the gap 421. The end of the base plate 41 also has a pulley 44 . The movable baffle 43 can move up and down along the plane of the fixed baffle 42 to realize the fine adjustment of the height of the notch 421 .

The detection component 5 is composed of a photoelectric switch bracket 51 and a photoelectric switch 52 , and the photoelectric switch bracket 51 is fixedly connected to the end of the substrate 41 .

The electric control assembly 6 is made up of a motor control circuit and a detection control circuit, the motor control circuit is electrically connected with the servo motor 23 of the drive wheel assembly 2, and the detection control circuit is electrically connected with the photoelectric switch 52 of the detection assembly 5, so as to control the above-mentioned components. Automatic control, the electric control assembly 6 is fixed on the base 1.

As shown in Fig. 4 and Fig. 5, the circuit arrangement of the present utility model is described. When the switch Q is turned on, if the photoelectric switch does not detect the polarizer (PF), the photoelectric switch does not act, and KT1 does not act, because KT1 is connected to Normally closed contact, so K2 is energized to drive the motor to run. When the photoelectric switch detects the polarizer (PF), it will act, KT1 will act, K2 will be powered off, and the drive motor will stop.

In conjunction with Fig. 1, the working process of the present utility model is described: first, a stack of polarizers (PF) 7 is neatly placed in front of the fixed baffle plate 42 on the tear film assembly 4, and at the same time, it is installed on the driven wheel 31 on the driven wheel assembly 3 Good tape 8, the tape passes through the pulley 33 on the driven wheel assembly 3 and the pulley 44 on the base plate 41 of the tearing film assembly 4 and the pulley 44 at the end of the base plate 41 is connected to the driving wheel 22, with the adhesive side facing up; turn on the power; the servo motor 23 Drive the driving wheel 22 to start running, the tape 8 starts to move with the driving wheel 22, the polarizer (PF) 7 starts to adhere to the rubber surface of the tape and runs with the tape 8 one by one, and the polarizer (PF) 7 approaches the substrate When the transparent protective film 71 of the polarizer (PF) 7 starts to separate from the polarizer (PF) 7 itself at the edge of 41; The sensor of the photoelectric switch 52 of the component 5 starts to sense; the servo motor 23 gets a signal to stop running immediately during the sensing, and the automatic film removal work of a polarizer (PF) 7 is completed, and in such a cycle, a large amount of polarizers (PF) 7 are automatically removed. The film is complete.

Those skilled in the art will appreciate that the embodiments described here are to help readers understand the principles of the present invention, and it should be understood that the protection scope of the present utility model is not limited to such specific statements and embodiments. All possible equivalent replacements or changes made according to the above description are considered to belong to the protection scope of the claims of the present utility model.

Claims (3)

1. A liquid crystal display module polarizer automatic film tearing machine comprises base (1) and driven wheel assembly (3), and described driven wheel assembly (3) is movably connected to driven wheel support (31) by driven wheel support (31) 31) A driven wheel (32) on one side and a pulley (33) are composed, and the driven wheel support (31) is fixedly connected to the base (1), and it is characterized in that it also includes: The driving wheel assembly (2) is composed of a driving wheel bracket (21), a driving wheel (22) and a servo motor (23) respectively located on both sides of the driving wheel bracket (21), and the servo motor (23) is fixedly connected to the driving wheel bracket (21), the driving wheel (22) is movably connected on the servo motor (23); The film tearing assembly (4) is made up of base plate (41), fixed baffle plate (42) and pulley (44), and described base plate (41) is fixedly connected on the top of driven wheel support (31) and maintains the perpendicular relationship with it , the substrate (41) remains horizontally inclined, the fixed baffle (42) is fixedly connected to the top of the substrate (41) and maintains a vertical relationship with it, and the bottom of the fixed baffle (42) has a gap for the passage of the polarizer ( 421), there is at least one pulley (44) inside the substrate (41) below the notch (421), and the end of the substrate (41) also has a pulley (44); The detection component (5) is composed of a photoelectric switch bracket (51) and a photoelectric switch (52), and the photoelectric switch bracket (51) is fixedly connected to the end of the substrate (41); The electric control component (6) is composed of a motor control circuit and a detection control circuit, the motor control circuit is electrically connected to the servo motor (23) of the driving wheel assembly (2), and the detection control circuit is connected to the photoelectric switch (52) of the detection component (5). ) electrical connection for the automatic control of the above-mentioned components, and the electric control component (6) is fixed on the base (1). 2. The liquid crystal display module polarizer automatic film tearing machine according to claim 1, characterized in that, the front of the fixed baffle (42) of the tear film assembly (4) is also closely attached to a movable baffle (43 ), the movable baffle (43) can move up and down along the plane of the fixed baffle (42), to realize the fine adjustment of the height of the notch (421). 3. The liquid crystal display module polarizer automatic film tearing machine according to claim 1 or 2, characterized in that, the drive wheel (22) and the servo motor (23) of the drive wheel assembly (2) are flexibly connected through a transmission .

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