Automatic film-tearing conveying mechanism and use method thereof

Abstract

The present application relates to the technical field of film tearing devices, and discloses an automatic film tearing conveying mechanism, a conveying belt, the conveying belt has an outer side for carrying release film and circuit board and an inner side opposite to the outer side, the discharge end of the conveying belt is bent downward and turned to form a peeling portion; a material separator, located at the discharge end of the conveying belt, and a film discharge gap is formed between the material separator and the peeling portion of the conveying belt; an air suction member, located on the inner side of the conveying belt, has an air suction port facing the inner side of the conveying belt; a discharge belt, located on the side of the material separator away from the conveying belt, is used to receive and transport the peeled circuit board; a plurality of adsorption holes are provided on the conveying belt, and the film discharge gap is consistent with the thickness of the release film; a guide roller is provided at the high end of the material separator, and the guide roller is flush with the entrance of the film discharge gap, and is used to carry the peeled circuit board and guide it to the discharge belt direction. The film tearing conveying mechanism of the present application can automatically peel the circuit board and the release film and divide them to different positions.

Description

Technical Field

[0001] The present application relates to the technical field of film tearing devices, and in particular to an automatic film tearing and conveying mechanism and a method for using the same. Background Art

[0002] Circuit board, also known as flexible circuit board or flexible circuit board, is a circuit board made of polyimide. Circuit board has the characteristics of high wiring density, light weight, thin thickness and good bending property. It makes the circuit miniaturized and intuitive, and plays an important role in the mass production of fixed circuits and the optimization of electrical appliance layout.

[0003] Currently, in the production and processing of circuit boards on the market, the circuit boards are usually attached to the release film through static electricity, so as to isolate the surface of the circuit boards and prevent the circuit boards from being worn and dusty. However, before entering the subsequent process, the circuit boards need to be torn off the release film and transported to the subsequent work location.

[0004] In the traditional film peeling process, it is usually necessary to pre-peel off one end of the bonding part of the circuit board and the release film in advance. However, after peeling off the bonding ends of the two, the circuit board located above the release film may fall on the release film again due to gravity and be adsorbed and bonded again, making subsequent film peeling difficult. Summary of the invention

[0005] In order to improve the problem in the prior art that the film is difficult to tear due to easy re-adsorption after pre-peeling,

[0006] The present application provides an automatic film-tearing conveying mechanism and a method of using the same:

[0007] In the first aspect, the present application provides an automatic film tearing and conveying mechanism adopting the following scheme:

[0008] The conveyor belt comprises an outer side for carrying a release film and a circuit board and an inner side opposite to the outer side, and a discharge end of the conveyor belt is bent and rotated downward to form a peeling portion;

[0009] A material separation piece, located at the discharge end of the conveyor belt, and forming a film discharge gap between the material separation piece and the stripping portion of the conveyor belt;

[0010] An air extraction member, located on the inner side of the conveyor belt, and having an air extraction port facing the inner side of the conveyor belt;

[0011] A discharging belt, located at a side of the material separation member away from the material transport belt, for receiving and transporting the peeled circuit boards;

[0012] A plurality of groups of adsorption holes are provided on the conveying belt, and each group of adsorption holes is evenly distributed perpendicular to the conveying direction, and the film outlet gap is consistent with the thickness of the release film; a guide roller is provided at the high end of the material dividing piece, and the guide roller is flush with the entrance of the film outlet gap, and the guide roller is used to carry the peeled circuit board and guide it to the direction of the discharge belt.

[0013] By adopting the above scheme, a material dividing piece is provided, and the conveying belt is bent and rotated at the discharge end to form a peeling portion, and a film discharge gap is formed between the material dividing piece and the peeling portion. The release film is stably adsorbed on the conveying belt by the adsorption piece. When it is bent and deformed with the conveying belt, the vacuum bonding between the release film and the circuit board is destroyed, and the release film enters the film discharge gap, and the circuit board is guided by the guide roller above the material dividing piece to move onto the discharge belt. In the traditional technical scheme, due to the peeling opening at the end between the release film and the circuit board, the circuit board is easily bonded to the release film again under the action of gravity, resulting in subsequent difficulty in peeling. In some other technical schemes, in order to solve this problem, the release film and the circuit board are usually manually peeled off, and the circuit board is manually supported on the feeding belt to prevent the circuit board and the release film from bonding again. The operation is relatively complicated and inefficient. In the technical solution of the present application, the adsorption member cooperates with the adsorption holes on the conveyor belt to ensure that the release film and the conveyor belt are in close contact in the peeling portion, and the release film is allowed to enter the film outlet gap, and the peeled circuit board moves toward the outlet belt along the guide roller, thereby effectively avoiding the problem of the peeled release film and the circuit board being adsorbed again, and the automatic film tearing and conveying mechanism has a high degree of automation, simple operation and high efficiency.

[0014] Optionally, it also includes a static eliminator, which has an air blowing port. The static eliminator is located at the discharge end of the conveyor belt, and the air blowing port faces the entrance of the film discharge gap.

[0015] By adopting the above scheme, an electrostatic eliminator is provided, and the stable air outlet of the electrostatic eliminator is directed toward the entrance of the film-exiting gap, so that when the release film and the circuit board are close to the film-exiting gap, the electrostatic adsorption between the two is destroyed, so that the subsequent release film is bent and enters the film-exiting gap alone. Since electrostatic adsorption is usually used between the release film and the circuit board, the technical solution of the present application adopts an electrostatic eliminator and aligns it with the entrance of the film-exiting gap, so that the ends of the release film and the circuit board at the bonding position lose the electrostatic force of mutual bonding, thereby improving the convenience of separating the two.

[0016] Optionally, the air outlet is inclined upward.

[0017] By adopting the above scheme, the air outlet is tilted upward, so that the wind carrying a large number of positive and negative ions blown by the static elimination device is tilted upward to the end of the circuit board and the release film. Since the flexible circuit board is relatively light and thin, it is easier to tilt upward after being subjected to the tilted upward wind force to separate from the release film. In other technical schemes, due to the poor pre-peeling effect of the circuit board and the end of the release film, when it is close to the film gap, there may be a problem of collision and damage between the circuit board and the material separation piece at the entrance of the film gap. In the technical scheme of the present application, the static elimination device blows out wind carrying a large number of positive and negative ions from the air outlet, and blows it tilted upward to the entrance of the film gap. On the one hand, the static elimination between the circuit board and the release film is convenient for peeling and separating; on the other hand, the tilted upward wind can slightly blow up the circuit board, while the release film is still adsorbed on the conveyor belt, thereby further achieving a better peeling effect.

[0018] Optionally, a driving motor is further included, wherein the output shaft of the driving motor is connected to the guide roller and is used to drive the guide roller to rotate so as to drive the peeled circuit board.

[0019] By adopting the above solution, the driving motor drives the guide roller to rotate, thereby driving the peeled circuit board to move; in some technical solutions, the guide roller is usually a driven roller, which only serves as a follow-up guide and needs to rely on the friction force of the circuit board on the guide roller to drive, which has a poor effect. In the technical solution of this application, the guide roller rotates to drive the circuit board to move, and the guiding effect is better.

[0020] Optionally, it also includes a transfer piece for carrying the circuit board from the material dividing piece, the transfer piece is slidably installed along the length direction of the discharge belt just above the discharge belt; the transfer piece has a static carrying state and a transfer state that moves synchronously with the discharge belt, when in the carrying state, the transfer piece is located at the feed end of the discharge belt to receive the circuit board from the material dividing piece; when in the transfer state, the transfer piece drives the circuit board to move synchronously with the discharge belt; after the transfer piece switches from the static carrying state to the transfer state, it stops suddenly and resets, so that the circuit board can slide out along the length direction of the discharge belt onto the discharge belt.

[0021] By adopting the above solution, the peeled circuit board is placed on a stationary transfer piece, thereby effectively avoiding the problem that the circuit board is directly pulled and worn by the high-speed conveyor belt before being peeled off, and the circuit board may be directly pulled off the release film. In the traditional technical solution, the conveyor belt usually moves at a uniform speed, and in order to improve the efficiency of material transportation, the movement speed of the discharge belt is faster. Therefore, when the circuit board is long and cannot be completely separated from the release film, if the circuit board contacts the high-speed discharge belt, on the one hand, the relative speed between the two is large, which will cause relative slippage, causing the components on the bottom surface of the circuit board to be worn; on the other hand, due to the friction generated by the conveyor belt on the bottom surface of the circuit board, the circuit board that has not been completely peeled off will be pulled forcefully, which may cause the release film to be driven off the conveyor belt, seriously affecting the stability of the material separation and peeling process. In the technical solution of the present application, after the circuit board is statically received by the transfer piece, the circuit board is driven to accelerate along the direction of the discharge belt. On the one hand, it ensures that the circuit board lines that have not been completely peeled off fall on the static transfer piece, effectively avoiding the possible influence of the high-speed moving conveyor belt on the peeling process.

[0022] Optionally, the transfer member has a bearing surface, which is a smooth surface. The transfer member is provided with a material baffle plate on a side edge close to the material dividing member, and the material baffle plate is used to push the circuit board to move synchronously with the transfer member.

[0023] By adopting the above scheme, a baffle plate for pushing the circuit board and a smooth bearing surface are provided, and the wear of the bottom surface of the circuit board by the discharge belt is converted into the push of the side of the circuit board by the transfer part, thereby effectively reducing the wear of the circuit board; in the traditional technical scheme, since the initial speed of the circuit board after peeling is slow, the speed difference between it and the discharge belt is large, so when the two contact each other, relative slippage is easy to occur to damage the bottom components of the circuit board. In the technical scheme of the present application, since the transfer part and the discharge belt move synchronously in the transfer state, when the transfer part stops suddenly, the circuit board slides out and falls on the discharge belt, and the speed of the circuit board in the horizontal direction is very close to the movement speed of the discharge belt, thereby effectively reducing the wear between the circuit board and the discharge belt; and in the process of the circuit board on the transfer part, since the bearing surface is made of smooth material, the damage to the bottom of the circuit board can be basically ignored under ideal conditions; therefore, the transfer part pushes the side of the circuit board through the baffle plate, thereby accelerating the transfer of the circuit board, thereby effectively reducing the wear of the bottom of the circuit board.

[0024] Optionally, the material dividing member has a guide portion at one end away from the conveying belt, and the guide portion is bent downward in an arc shape toward the feeding end of the discharging belt. In the load-bearing state, the lower end of the guide portion faces the load-bearing surface.

[0025] By adopting the above scheme, an arc-shaped guide portion is provided, and since the arc-shaped guide portion bends downward and faces the bearing surface, the peeled circuit board is buffered and guided. In the traditional technical scheme, since the peeled circuit board usually has a certain gap distance from the discharge belt, the flexible circuit board is easily bent by gravity and falls into the gap, affecting the automated discharge. Therefore, it is usually necessary to manually place the end of the circuit board on the discharge belt, which is complicated and wastes manpower. In the technical scheme of the present application, the peeled circuit board is guided by the arc-shaped guide portion and faces the bearing surface, thereby effectively preventing the flexible circuit board from falling into the gap between the material dividing piece and the discharge belt, and achieving a better guiding effect.

[0026] Optionally, the feed end of the discharge belt is provided with a position sensor and a controller for monitoring the position of the circuit board. The position sensor detects that the circuit board has completely fallen on the supporting surface and sends a position signal to the controller. The position sensor is coupled to the controller, and the controller receives the position signal and controls the motor used to drive the transfer member to operate.

[0027] By adopting the above solution, a position sensor and a controller are provided. Since the bearing surface of the transfer member in the technical solution of the present application is made of a smooth material, the circuit board falls on the bearing surface and easily continues to slide forward and directly detaches from the transfer member. The position sensor can detect the position of the circuit board on the transfer member, thereby controlling the transfer member to start immediately when the circuit board falls on the bearing surface to effectively avoid the problem of the circuit board sliding out of the transfer member.

[0028] Optionally, a slide rail is provided on each side of the discharge belt, and the transfer member is slidably mounted on the two slide rails at the same time.

[0029] By adopting the above scheme, two slide rails are provided, and the transfer member is mounted on the two slide rails at the same time, so that the transfer member is supported at the same time, the force stability of the transfer member is improved, and sliding on the two slide rails at the same time helps to improve the stability of the transfer member's movement.

[0030] In the second aspect, the following technical solution is adopted based on the method of using the automatic film tearing and conveying mechanism:

[0031] S1: The vacuum part works to adsorb the release film onto the conveyor belt, and the conveyor belt runs and drives the release film and the circuit board to move synchronously toward the material separation part;

[0032] S2: The static eliminator blows air upward at an angle toward the entrance of the discharge gap, and the static adhesion between the circuit board and the release film is eliminated at the entrance of the discharge gap;

[0033] S3: The release film enters the discharge gap, and the circuit board moves toward the discharge belt via the guide roller on the material separation part;

[0034] S4: The circuit board falls into the transfer part through the guide, and the position sensor sends a position signal to the controller. After receiving the position signal, the controller controls the transfer part to accelerate to the transfer state;

[0035] S5: The transfer part stops suddenly, and the circuit board slides along the bearing surface and falls onto the discharge belt to be transported to the subsequent process.

[0036] By adopting the above scheme,

[0037] In summary, the present application includes at least the following beneficial technical effects:

[0038] 1. Avoid re-adsorption, high efficiency: by providing a dividing piece, the conveyor belt is bent and rotated at the discharge end to form a peeling portion, and a film discharge gap is formed between the dividing piece and the peeling portion. The release film is stably adsorbed on the conveyor belt by the adsorption piece. When it bends and deforms with the conveyor belt, the vacuum bonding between the release film and the circuit board is destroyed, and the release film enters the film discharge gap, while the circuit board is guided by the guide roller above the dividing piece to move onto the discharge belt. In the traditional technical solution, due to the peeling opening at the end between the release film and the circuit board, the circuit board is easily bonded to the release film again under the action of gravity, resulting in difficulty in subsequent peeling. In some other technical solutions, in order to solve this problem, it is usually adopted to manually peel off the release film from the circuit board, and then manually support the circuit board on the feed belt to prevent the circuit board from bonding to the release film again. The operation is relatively complicated and inefficient. In the technical solution of the present application, the adsorption member cooperates with the adsorption holes on the conveying belt to ensure that the release film and the conveying belt are closely attached to each other in the peeling part, and the release film enters the film discharge gap smoothly, and the peeled circuit board moves toward the discharge belt along the guide roller, thereby effectively avoiding the problem of the peeled release film and the circuit board being adsorbed again, and the automatic film peeling and conveying mechanism has a high degree of automation, simple operation and high efficiency;

[0039] 2. Easy to peel off: an electrostatic eliminator is provided, and the stable air outlet of the electrostatic eliminator is directed toward the entrance of the film gap, so that when the release film and the circuit board are close to the film gap, the electrostatic adsorption between the two is destroyed, so that the subsequent release film is bent and enters the film gap alone. Since electrostatic adsorption is usually used between the release film and the circuit board, the technical solution of this application adopts an electrostatic eliminator and aligns it with the entrance of the film gap, so that the ends of the release film and the circuit board at the bonding position lose the electrostatic force of mutual bonding, thereby improving the convenience of separating the two;

[0040] 3. Less wear during transportation: a baffle plate for pushing the circuit board and a smooth bearing surface are provided, which converts the wear of the bottom surface of the circuit board by the discharge belt into the side surface of the circuit board by the transfer part, thereby effectively reducing the wear of the circuit board; in the traditional technical solution, since the initial speed of the circuit board after peeling is slow, the speed difference between it and the discharge belt is large, so when the two contact each other, relative slippage is likely to damage the bottom components of the circuit board. In the technical solution of the present application, since the transfer part and the discharge belt move synchronously in the transfer state, when the transfer part stops suddenly, the circuit board slides out and falls on the discharge belt, and the speed of the circuit board in the horizontal direction is very close to the movement speed of the discharge belt, thereby effectively reducing the wear between the circuit board and the discharge belt; and, in the process of the circuit board on the transfer part, since the bearing surface is made of smooth material, the damage to the bottom of the circuit board can be basically ignored under ideal conditions; therefore, the transfer part pushes the side of the circuit board through the baffle plate, thereby accelerating the transfer of the circuit board, thereby effectively reducing the wear on the bottom of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0042] Figure 2 This is an exploded view of the embodiment of the present application in which the material separation part is separated from the first mounting frame to show the structure of the transfer part, and the processing box is hidden;

[0043] Figure 3 This is a schematic diagram of the embodiment of the present application made to show the internal structure of the material conveying belt and the material discharging belt while hiding the first mounting frame and the second mounting frame, and the processing box is hidden;

[0044] Figure 4 This is an enlarged view of point A made in the embodiment of the present application to highlight the structure of the transfer component.

[0045] Description of reference numerals:

[0046] 1. Material conveyor belt; 11. First mounting frame; 111. Avoidance groove; 12. Transmission wheel; 13. Air extraction member; 14. Adsorption hole; 15. Stripping part; 16. Static elimination device; 161. Air blowing port;

[0047] 2. material dividing member; 21. film outlet gap; 22. guide roller; 23. guide part;

[0048] 3. Transfer part; 31. Accommodating groove; 32. Load-bearing surface; 33. Baffle plate; 34. Side plate;

[0049] 4. Discharging belt; 41. Second mounting frame; 411. Slide rail; 42. Transmission roller; 43. Third mounting frame; 44. Touch sensor; 45. Position sensor; 451. Light output end; 452. Light input end;

[0050] 5. Processing box. DETAILED DESCRIPTION

[0051] The present application is further described in detail below in conjunction with the accompanying drawings.

[0052] The present application discloses an automatic film-tearing conveying mechanism and a method of using the same:

[0053] Reference Figure 1 and Figure 2 , discloses an automatic film-tearing conveying mechanism, which includes: a conveying belt 1, a dividing piece 2, an exhaust piece 13, a transfer piece 3 and a discharge belt 4, the exhaust piece 13 absorbs the release film onto the conveying belt 1, and the release film carries the circuit board and moves from the feeding end to the discharge end of the conveying belt 1, and the conveying belt 1 bends downward at the discharge end to form a peeling portion 15; the dividing piece 2 is located at the discharge end of the conveying belt 1, and a film-discharging gap 21 is formed between the dividing piece 2 and the peeling portion 15, and the height of the film-discharging gap 21 is consistent with the thickness of the release film, so that the release film moves synchronously with the conveying belt 1 and enters the film-discharging gap 21, and the circuit board is peeled and moves along the high end of the dividing piece 2 to the discharge belt 4, and the discharge belt 4 receives the circuit board and transports it to the next process.

[0054] Reference Figure 1 and Figure 2 The conveyor belt 1 is installed on a first mounting frame 11, and there are two first mounting frames 11. Each first mounting frame 11 is rotatably installed with a transmission wheel 12 at the feed end and the discharge end; the conveyor belt 1 is connected end to end and is simultaneously sleeved on the transmission wheel 12. A first motor is fixedly installed on each first mounting frame 11. The first motor drives the transmission wheel 12 to rotate, thereby driving the conveyor belt 1 to slide from the feed end to the discharge end.

[0055] Reference Figure 1 and Figure 2 The first mounting frame 11 is also fixedly connected with an air extraction member 13, which is located on the inner side of the conveyor belt 1, and has an air extraction port on the inner side of the conveyor belt 1. Correspondingly, the conveyor belt 1 is provided with multiple groups of adsorption holes 14, and each group of adsorption holes 14 is evenly distributed along a direction perpendicular to the conveying direction; in the embodiment of the present application, the length direction of the conveyor belt 1 is the conveying direction, and the width direction of the conveyor belt 1 is the direction in which the individual adsorption holes 14 are evenly distributed. The air extraction holes on the air extraction member 13 extract air, thereby adsorbing the release film on the conveyor belt 1.

[0056] Reference Figure 1 and Figure 2The conveyor belt 1 is bent downward at a high position at the discharge end and rotated to a low position at the discharge end to form a peeling portion 15. The dividing piece 2 is located at the discharge end of the conveyor belt 1. Specifically, the dividing piece 2 has an arc surface adapted to the shape of the peeling portion 15. The arc surface is bent downward and extends from the high end of the dividing piece 2. A film discharge gap 21 is formed between the arc surface and the peeling portion 15, and the high end surface of the dividing piece 2 is flush with the release film on the conveyor belt 1. The film discharge gap 21 is consistent with the thickness of the release film, so that the release film can be adsorbed on the conveyor belt 1 and enter the film discharge gap 21 as the conveyor belt 1 is bent, and the peeled circuit board can slide to the high end surface of the dividing piece 2. A plurality of guide rollers 22 are also rotatably mounted on the high end of the material dividing member 2, and the guide rollers 22 are perpendicular to the material conveying direction, and the guide rollers 22 are flush with the entrance of the touch gap. Specifically, the high end of the guide roller 22 is flush with the high end face of the material dividing member 2, so that the circuit board that slides to the high end face of the material dividing member 2 can slide onto the guide roller 22 and be guided to the direction of the discharge belt 4. In the embodiment of the present application, a drive motor is connected to the guide roller 22, and each guide roller 22 is connected to the output shaft of a drive motor, and the guide roller 22 rotates at a uniform speed and its rotation speed is the same as the movement speed of the conveying belt 1. The driving motor drives the rotation in a conventional manner, which is not described here, and it is not shown in the drawings of the embodiments of the present application. It is worth mentioning that the air extraction hole of the air extraction member 13 includes a first air extraction hole facing upward and a second air extraction hole facing the stripping portion 15, so that the release film is adsorbed on the conveying belt 1 when it is at the high end of the conveying belt 1 and in the film discharge gap 21. It should be noted that in the embodiment, the material separator 2 is fixedly mounted on the first mounting frame 11. In actual use, the release film moves on the conveyor belt 1, and the width of the release film is not greater than the width of the conveyor belt 1. Therefore, the release film will not touch the connection point between the material separator 2 and the first mounting frame 11 when moving in the film discharge gap 21. In the drawings of the embodiment of the present application, the connection position between the material separator 2 and the first mounting frame 11 is not shown.

[0057] Reference Figure 1 and Figure 2In order to improve the convenience of the release film sliding into the film-exit gap 21, an electrostatic eliminator 16 is also provided. There are two electrostatic eliminators 16, and one electrostatic eliminator 16 is correspondingly fixed on the side wall of each first mounting frame 11. The electrostatic eliminator 16 is located at the discharge end of the conveyor belt 1, and the electrostatic eliminator 16 has an upwardly inclined blowing port 161, which faces the entrance of the film-exit gap 21, so as to eliminate the static adsorption between the release film and the circuit board close to the film-exit gap 21. It is worth mentioning that the electrostatic eliminator 16 has an air blowing path facing the entrance of the film-exit gap 21, and correspondingly, an avoidance groove 111 is provided on the first mounting frame 11 to avoid the air blowing path, so that the wind blown out by the electrostatic eliminator 16 directly blows upwardly to the lateral side edge of the conveyor belt 1, and eliminates the static electricity at the bonding end of the release film and the circuit board there. In actual production conditions, the blowing path is directed toward the joint between the release film and the circuit board to provide a force to lift the circuit board upward and away from the release film.

[0058] Reference Figure 3 and Figure 4 , and also includes a second mounting frame 41 for mounting the discharge belt 4. The feed end and the discharge end of the second mounting frame 41 are each rotatably mounted with a transmission roller 42. Correspondingly, two motors are also fixedly mounted on the second mounting frame 41. The output shaft of each motor is correspondingly connected to a transmission roller 42. The discharge belt 4 is wrapped around the two transmission rollers 42 at the same time. The motor works to drive the discharge belt 4 to move from the feed end to the discharge end. In the drawings of the embodiments of this application, the motor is not shown. It is worth mentioning that the automatic film tearing conveying mechanism also includes a processing box 5 for subsequent packaging processes. The outlet end of the discharge belt 4 is located inside the processing box 5 to convey the peeled circuit board to the processing box 5.

[0059] Reference Figure 3 and Figure 4 In order to reduce the damage to the circuit board caused by the high-speed moving discharge belt 4 when conveying the peeled circuit board, a transfer member 3 is also provided for carrying the circuit board from the dividing member 2. Correspondingly, a slide rail 411 is fixedly installed on both sides of the width direction of the second mounting frame 41, and the slide rail 411 is arranged parallel to the length direction of the discharge belt 4. The transfer member 3 is slidably mounted on the two slide rails 411 at the same time, so that the transfer member 3 is slidably installed along the length direction of the discharge belt 4 just above the discharge belt 4.

[0060] Reference Figure 3 and Figure 4The transfer member 3 has a receiving groove 31 for receiving the circuit board, and the lower end of the receiving groove 31 is a smooth bearing surface 32. The transfer member 3 is provided with a baffle plate 33 on the side edge close to the material dividing member 2. The receiving groove 31 has an inlet facing upward and an outlet facing the processing box 5, and the outlet is located on the side of the transfer member 3 opposite to the baffle plate 33. The transfer member 3 has a static bearing state and a transfer state that moves synchronously with the discharge belt 4. In the bearing state, the transfer member 3 is located at the feed end of the discharge belt 4 to receive the circuit board from the material dividing member 2; in the transfer state, the transfer member 3 drives the circuit board to move synchronously with the discharge belt 4; after the transfer member 3 switches from the static bearing state to the transfer state, it stops suddenly and resets, so that the circuit board can slide out to the discharge belt 4 through the outlet along the length direction of the discharge belt 4. It is worth mentioning that in actual production conditions, the spacing between the transfer member 3 and the discharge belt 4 is 1 mm, so that the circuit board can fall on the discharge belt 4 after sliding out of the transfer member 3 and falling 1 mm. The transfer member 3 is also provided with side plates 34 on both sides of the width direction of the discharge end, and two pulleys are rotatably mounted on each side plate 34. Correspondingly, the pulleys are connected to motors, and the motors work to drive the pulleys to rotate and drive the transfer member 3 to move on the slide rails 411.

[0061] Reference Figure 3 and Figure 4 Correspondingly, the end of the dividing piece 2 away from the conveying belt 1 has a guide portion 23, the high end of the guide portion 23 is connected to the high end of the dividing piece 2, and the guide portion 23 is bent downward in an arc shape toward the feed end of the discharge belt 4. Specifically, in the carrying state, the low end of the guide portion 23 faces the carrying surface 32, so that the circuit board on the dividing piece 2 can slide to the carrying surface 32 on the transfer piece 3.

[0062] Reference Figure 3 and Figure 4, a third mounting frame 43 is fixedly mounted on the second mounting frame 41 at the feed end of the conveyor belt 1, and a touch sensor 44 for detecting the position of the transfer member 3, a position sensor 45 for detecting whether the circuit board has completely fallen into the transfer member 3, and a controller are mounted on the third mounting frame 43, and both the touch sensor 44 and the position sensor 45 are coupled to the controller. The touch sensor 44 is fixedly mounted on the end face of the third mounting frame 43 facing the discharge end of the conveyor belt 1. In the carrying state, the touch sensor 44 contacts the baffle plate 33 of the transfer member 3 and sends a position signal to the controller. The light emitting end 451 and the light input end 452 of the position sensor 45 are located on both sides of the width direction of the discharge belt 4. In the carrying state, the light path formed between the light emitting end 451 and the light input end 452 is located above the baffle plate 33, and the light path and the end face of the baffle plate 33 facing the accommodating groove 31 are on the same plane. After the circuit board passes through the optical path, when the tail end passes through the optical path again, that is, the circuit board completely falls onto the bearing surface 32, at this time, the position sensor 45 sends a position signal to the controller, and the controller receives the position signal and controls the motor to drive the transfer member 3 to move. The controller is an existing device, and the position and structure of the controller are not shown in the drawings of the embodiments of this application.

[0063] Also disclosed is a method for using the automatic film-tearing and conveying mechanism.

[0064] In the second aspect, the following technical solution is adopted based on the method of using the automatic film tearing and conveying mechanism:

[0065] S1: The vacuum element 13 works to adsorb the release film onto the conveyor belt 1, and the conveyor belt 1 rotates and drives the release film and the circuit board to move synchronously toward the material separation element 2;

[0066] S2: The static eliminator 16 blows air obliquely upward toward the entrance of the discharge gap, and the static adhesion between the circuit board and the release film is eliminated at the entrance of the discharge gap;

[0067] S3: The release film enters the discharge gap, and the circuit board moves toward the discharge belt 4 via the guide roller 22 on the material dividing member 2;

[0068] S4: The circuit board falls into the transfer member 3 via the guide portion 23, and the position sensor 45 sends a position signal to the controller. After receiving the position signal, the controller controls the transfer member 3 to accelerate and move to the transfer state;

[0069] S5: The transfer member 3 stops suddenly, and the circuit board slides along the bearing surface 32 and falls onto the discharge belt 4 to be transported to the subsequent process.

[0070] The implementation principle of an automatic film-tearing conveying mechanism in the embodiment of the present application is as follows: the adsorption member cooperates with the adsorption hole 14 on the conveying belt 1 to ensure the close fit between the release film and the conveying belt 1 at the peeling portion 15, and the static electricity is eliminated by the static electricity elimination device 16, so that the release film smoothly enters the film discharge gap 21, and the peeled circuit board moves toward the discharge belt 4 along the guide roller 22 and falls onto the transfer member 3. The transfer member 3 accelerates to the transfer state and stops suddenly, and the circuit board slides onto the discharge belt 4 to enter the subsequent process.

[0071] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic film-tearing and conveying mechanism, characterized in that: include: A conveyor belt (1), the conveyor belt (1) having an outer side for carrying a release film and a circuit board and an inner side opposite to the outer side, the discharge end of the conveyor belt (1) being bent and turned downward to form a peeling portion (15); A material separation piece (2) is located at the discharge end of the material conveying belt (1), and the material separation piece (2) has an arc surface adapted to the shape of the stripping portion (15). The arc surface is bent downward and extends from the high end of the material separation piece (2), and a film discharge gap (21) is formed between the arc surface and the stripping portion (15) of the material conveying belt (1); An air extraction member (13) is located on the inner side of the material conveying belt (1) and has an air extraction port facing the inner side of the material conveying belt (1); A discharge belt (4), located on a side of the material separation member (2) away from the material transport belt (1), and used for receiving and transporting the peeled circuit boards; A plurality of groups of adsorption holes (14) are formed through the conveying belt (1), each group of adsorption holes (14) is evenly distributed in a direction perpendicular to the conveying direction, and the film discharge gap (21) is consistent with the thickness of the release film; a guide roller (22) is provided at the high end of the material dividing member (2), the guide roller (22) is flush with the entrance of the film discharge gap (21), and the guide roller (22) is used to carry the peeled circuit board and guide it to the direction of the discharge belt (4); The transfer member (3) is used to carry the circuit board from the material distribution member (2), and the transfer member (3) is installed directly above the discharge belt (4) in a sliding manner along the length direction of the discharge belt (4); the transfer member (3) has a static carrying state and a transfer state that moves synchronously with the discharge belt (4). In the carrying state, the transfer member (3) is located at the feed end of the discharge belt (4) to receive the circuit board from the material distribution member (2); in the transfer state, the transfer member (3) drives the circuit board to move synchronously with the discharge belt (4); after the transfer member (3) switches from the static carrying state to the transfer state, it stops suddenly and resets, so that the circuit board can slide out along the length direction of the discharge belt (4) onto the discharge belt (4).

2. The automatic film-tearing and conveying mechanism according to claim 1, characterized in that: It also includes an electrostatic eliminator (16), which has an air blowing port (161). The electrostatic eliminator (16) is located at the discharge end of the conveyor belt (1), and the air blowing port (161) faces the entrance of the film discharge gap (21).

3. The automatic film-tearing conveying mechanism according to claim 2, characterized in that: The air blowing port (161) is inclined upward.

4. The automatic film-tearing and conveying mechanism according to claim 1, characterized in that: It also comprises a driving motor, the output shaft of which is connected to the guide roller (22) and is used to drive the guide roller (22) to rotate so as to drive the peeled circuit board.

5. The automatic film-tearing and conveying mechanism according to claim 1, characterized in that: The transfer member (3) has a bearing surface (32), and the bearing surface (32) is a smooth surface. The transfer member (3) is provided with a material blocking plate (33) on the side edge close to the material dividing member (2), and the material blocking plate (33) is used to push the circuit board and the transfer member (3) to move synchronously.

6. The automatic film-tearing and conveying mechanism according to claim 5, characterized in that: The end of the material dividing member (2) away from the conveying belt (1) has a guide portion (23), and the guide portion (23) is bent downward in an arc shape toward the feeding end of the discharging belt (4). In the load-bearing state, the lower end of the guide portion (23) faces the load-bearing surface (32).

7. According to the automatic film tearing conveying mechanism described in claim 5, the feed end of the discharge belt (4) is provided with a position sensor (45) and a controller for monitoring the position of the circuit board, the position sensor (45) detects that the circuit board falls completely on the bearing surface (32) and sends a position signal to the controller, the position sensor (45) is coupled to the controller, and the controller receives the position signal and controls the motor used to drive the transfer member (3) to work.

8. The automatic film-tearing and conveying mechanism according to claim 1, characterized in that: A slide rail (411) is provided on each side of the discharge belt (4), and the transfer member (3) is slidably mounted on the two slide rails (411) at the same time.

9. A method for using an automatic film-tearing conveying mechanism, characterized in that: Based on the automatic film tearing and conveying mechanism according to any one of claims 1 to 8, the method of use comprises the steps of: S1: the vacuum element (13) works to adsorb the release film onto the conveyor belt (1), and the conveyor belt (1) rotates and drives the release film and the circuit board to move synchronously toward the material separation element (2); S2: The static eliminator (16) blows air obliquely upward toward the entrance of the discharge gap, and the static adhesion between the circuit board and the release film is eliminated at the entrance of the discharge gap; S3: the release film enters the discharge gap, and the circuit board moves toward the discharge belt (4) via the guide roller (22) on the material separation member (2); S4: the circuit board falls into the transfer member (3) via the guide portion (23), the position sensor (45) sends a position signal to the controller, and after receiving the position signal, the controller controls the transfer member (3) to accelerate and move to the transfer state; S5: The transfer component (3) stops suddenly, and the circuit board slides along the bearing surface (32) and falls onto the discharge belt (4) to be transported to the subsequent process.

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