Misalignment winding device for ultra-thin glass fabric inspecting machine

Abstract

The invention relates to the technical field of cloth inspecting machines, in particular to a misalignment winding device for an ultra-thin glass fabric inspecting machine. Comprising glass fabric, and further comprises a sensor unit and a guiding movement unit, and the guiding movement unit is located on the upstream of the sensor unit; the sensor unit comprises a U-shaped deviation rectifying sensor, the U-shaped deviation rectifying sensor is connected with the air cylinder, and the edge of the glass fabric is located in a U-shaped groove of the U-shaped deviation rectifying sensor; the guiding movement unit comprises a cloth guiding roller which is placed on a guide rail, the middle of the cloth guiding roller is fixed to a rotating shaft, and one side of the guide rail is connected with an electric push rod. The glass fabric advances from the guiding movement unit to the direction of the sensor unit and is wound on the winding mechanism; the sensor unit and the guiding motion unit are connected with the controller. According to the misalignment winding device, the problem that edge warping is likely to occur in a traditional winding mode of a glass fabric inspecting machine can be solved.

Description

Technical Field

[0001] The invention relates to the technical field of cloth inspection machines, in particular to a staggered winding device for an ultra-thin glass fiber cloth inspection machine. Background Art

[0002] In recent years, with the rapid development of 5G technology, the requirements for PCB boards in high-frequency and high-speed application fields are getting higher and higher. The raw material glass fiber cloth is developing in the direction of becoming thinner and lighter. In the final inspection of the glass fiber cloth, a cloth inspection machine is required for inspection. In the winding device of the cloth inspection machine, a winding correction device is provided to ensure that the edges of the cloth at both ends of the cloth roll are arranged neatly during the winding process of the glass fiber cloth. Because the glass fiber cloth is relatively thin, the pressure used is relatively small. In the actual rolling process of the cloth inspection machine, when the two end surfaces of the glass fiber cloth are arranged neatly, as the diameter of the cloth roll increases, it is easy for the edge of the cloth roll to warp, and the larger the diameter of the cloth roll, the more serious the warping phenomenon. The reason is that when the glass fiber cloth is produced, the cloth roll pressure is low and the tension is relatively high. Relatively speaking, the cloth is rolled tightly in the middle and the edges at both ends are relatively loose, causing the edges of the cloth roll to be slightly thicker than other parts. The aligned rolling will cause the thicker edge parts to be continuously superimposed at the same position of the cloth roll, resulting in a bulge in the aligned edge parts. The subsequent superimposed edge parts of the cloth rolls are stretched due to the previous bulges, and as the roll diameter increases, the degree of stretching becomes greater and greater. If this stretching cannot be restored, the edge parts of the cloth rolls will become thinner and longer than the middle part, and the feather edges will become hairy, forming defects.

[0003] Production experience shows that the neater the end face of the cloth roll is when it is rolled up, the more serious the edge warping is; on the contrary, sometimes the corrector fails, the end face of the rolled cloth roll is not neat, but the edge warping phenomenon is reduced. Of course, the uneven end face of the cloth roll will cause trouble for the user in the subsequent process of unrolling. If it exceeds the unrolling correction range of the subsequent process, the cloth roll cannot be used. According to the above production practice, in order to solve the problem that the two ends of the cloth roll are easy to warp during winding, it is necessary to develop a special winding device for the glass fiber cloth inspection machine. Therefore, the present invention is proposed. Summary of the invention

[0004] The object of the present invention is to provide a staggered winding device for an ultra-thin glass fiber cloth inspection machine, which solves the problem that the traditional winding method of the glass fiber cloth inspection machine is prone to warping.

[0005] The present invention provides an offset winding device for an ultra-thin glass fiber cloth inspection machine, comprising glass fiber cloth, a sensor unit and a guide motion unit, wherein the guide motion unit is located upstream of the sensor unit; the sensor unit comprises a U-shaped deviation correction sensor, the U-shaped deviation correction sensor is connected to a cylinder, and the edge of the glass fiber cloth is located in a U-shaped groove of the U-shaped deviation correction sensor; the guide motion unit comprises a cloth guide roller, the cloth guide roller is placed on a guide rail, the middle part of the cloth guide roller is fixed on a rotating shaft, and an electric push rod is connected to one side of the guide rail; the glass fiber cloth moves from the guide motion unit to the direction of the sensor unit and is wound on a winding mechanism; the sensor unit and the guide motion unit are both connected to a controller.

[0006] Furthermore, the cylinder adopts a double-acting single-rod cylinder, including a rodless chamber and a rod chamber connected thereto, the cylinder body of the rodless chamber is fixed on the bracket, a piston rod is provided inside the rod chamber, and the end of the piston rod is fixedly connected to the U-shaped correction sensor.

[0007] Furthermore, both the rodless cavity and the rod-containing cavity are provided with air tubes.

[0008] Furthermore, the stroke of the piston rod is not greater than the upper limit of the unwinding correction distance; and the moving direction of the U-shaped correction sensor is perpendicular to the traveling direction of the glass fiber cloth.

[0009] Furthermore, a cloth guide roller is provided on a side of the take-up mechanism close to the sensor unit.

[0010] Furthermore, the winding mechanism is provided with a paper tube, and the glass fiber cloth is wound on the paper tube.

[0011] Furthermore, the cylinder also includes an air source processing unit: including an air filter, a pressure reducing valve and an oil mist collector connected in sequence, for purifying, reducing pressure and lubricating the compressed air;

[0012] Solenoid valve: connected to the air pipe, used to control the air intake and exhaust of the cylinder;

[0013] The limit switch is used to detect the limit travel position of the piston rod and send a signal to the controller.

[0014] Furthermore, a timing module is provided in the controller, which controls the extension and retraction frequency of the piston rod by setting the ventilation time and the air cut-off time.

[0015] Furthermore, the sensor unit also includes a signal monitoring module connected to the signal output circuit of the U-shaped correcting sensor, for detecting in real time whether the signal output by the U-shaped correcting sensor is within a normal range, and feeding back to the controller.

[0016] Furthermore, an alarm device is included, and the alarm device is connected to the controller.

[0017] In summary, the present invention has the following advantages:

[0018] The offset winding device provided by the present invention is a special device in the winding system of the glass fiber cloth inspection machine. It is installed based on the existing winding system of the glass fiber cloth inspection machine and replaces the original winding and correcting device. The glass fiber cloth inspection machine can achieve offset winding to solve the "warping edge" problem that is easy to occur in the traditional winding method of the glass fiber cloth inspection machine. It has the advantages of obvious effect, stable operation and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic structural diagram of the staggered winding device in an embodiment of the present invention.

[0021] Explanation of the reference numerals: 1-glass fiber cloth; 2-cylinder; 3-piston rod; 4-air pipe; 5-bracket; 6-U-type deviation correction sensor; 7-cloth guide roller; 8-paper tube; 9-cloth reel; 10-air filter; 11-pressure reducing valve; 12-oil mist collector; 13-solenoid valve. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example

[0026] A staggered winding device for an ultra-thin glass fiber cloth inspection machine, such as Figure 1 As shown, it includes a glass fiber cloth 1, a sensor unit and a guide motion unit. A winding mechanism is provided on the side of the sensor unit away from the guide motion unit. The guide motion unit is located upstream of the sensor unit. The glass fiber cloth 1 moves from the guide motion unit to the sensor unit and is wound on the winding mechanism. The sensor unit, the guide motion unit and the winding mechanism are all connected to a controller. The controller in the present invention adopts a programmable PLC control system.

[0027] The guide motion unit includes two cloth guide rollers 7, an electric push rod, a rotating shaft and a guide rail; the two cloth guide rollers 7 are placed on the guide rail in parallel, the middle part is fixed on the rotating shaft, and one side of the guide rail is connected to the electric push rod; when the electric push rod moves back and forth, it can drive the cloth guide roller 7 to reciprocate around the rotating shaft on the guide rail. For the specific details of the guide motion unit, please refer to the patent document with publication number CN 109850642 A.

[0028] The sensor unit includes a cylinder 2, a U-shaped deflection correction sensor 6 and a bracket 5. The cylinder 2 adopts a double-acting single-rod cylinder, including a rodless chamber and a rod chamber connected thereto. The cylinder body of the rodless chamber is fixed on the bracket 5. A piston rod 3 is provided inside the rod chamber. The end of the piston rod 3 is fixedly connected to the U-shaped deflection correction sensor 6 to control the U-shaped deflection correction sensor 6 to move with the piston rod 3. Air pipes 4 are provided on both the rodless chamber and the rod chamber, and the movement of the piston rod 3 in the cylinder 2 is controlled by the air intake and exhaust of the air pipe 4. The stroke of the piston rod 3 is less than or equal to the upper limit of the unwinding correction distance. The edge of the glass fiber cloth 1 is located in the U-shaped groove of the U-shaped deflection correction sensor 6; the moving direction of the U-shaped deflection correction sensor 6 is perpendicular to the traveling direction of the glass fiber cloth 1.

[0029] The winding mechanism in the present invention is provided by the cloth inspection machine in the prior art, and is provided with a paper tube 8. Two cloth guide rollers 7 are arranged in parallel on one side of the winding mechanism close to the sensor unit, and the glass fiber cloth 1 is wound on the paper tube 8 through the cloth guide rollers 7.

[0030] In the present invention, the cylinder 2 is also provided with an air source processing unit, a solenoid valve 13, and a limit switch. The air source processing unit includes an air filter 10, a pressure reducing valve 11, and an oil mist device 12 connected in sequence. The compressed air first passes through the air filter 10 to remove impurities and moisture; then it is adjusted to a suitable working pressure range through the pressure reducing valve 11; finally, lubricating oil is added through the oil mist device 12 to ensure the lubrication effect of the cylinder 2 when it is working.

[0031] The solenoid valve 13 is connected to the air pipe 4. In this embodiment, the solenoid valve 13 adopts a two-position five-way solenoid valve with five interfaces, including a common interface, two output interfaces and two exhaust interfaces. It receives a control signal from the controller to realize the conduction and cutoff of different air paths, thereby controlling the intake and exhaust direction of the cylinder 2.

[0032] Two limit switches are provided, which are installed at the front and rear ends of the cylinder 2, respectively, for detecting the limit travel position of the piston rod 3. When the piston rod 3 reaches the limit position, the corresponding limit switch closes and sends a signal to the controller. When the piston rod 3 is extended to the limit position, the limit switch at the front end is triggered, and the signal is fed back to the controller. After receiving the signal, the controller controls the solenoid valve 13 to switch, so that the piston rod 3 retracts. Similarly, when the piston rod 3 retracts to the limit position, the limit switch at the rear end is triggered, and the controller controls the solenoid valve 13 to switch again, so that the piston rod 3 extends. By adjusting the installation position of the limit switch, the stroke of the piston rod 3 can be adjusted, thereby setting the misalignment width.

[0033] The controller is provided with a timing module, which controls the extension and retraction frequency of the piston rod 3 by setting the parameters of the ventilation time and the air-off time. When setting the misalignment frequency, the ventilation time and the air-off time are actually set in the controller. When the piston rod 3 needs to be extended for a period of time and then retracted, the controller first outputs a signal to control the extension of the piston rod 3 and performs timing; when the set ventilation time is reached, the controller changes the output signal to retract the piston rod 3 and performs timing again. When the set air-off time is reached, the controller switches the output signal again to extend the piston rod 3, and the cycle is repeated to achieve the control of the misalignment frequency.

[0034] The sensor unit provided by the present invention also includes a signal monitoring module, which is connected to the signal output circuit of the U-shaped deflection correction sensor 6, and is used to detect in real time whether the electrical signal output by the U-shaped deflection correction sensor 6 is within a normal range, and feed it back to the controller. When it is detected that the output signal of the U-shaped deflection correction sensor 6 is abnormal, the controller immediately sounds an alarm through the alarm device. The alarm device can adopt a combination of a buzzer and a warning light, and be installed in a conspicuous position of the cloth inspection machine so that the operator can find it in time. At the same time, the controller can also send the fault information to the host computer or the factory's automation management system, so that the management personnel can remotely monitor the operating status of the equipment, and record detailed information such as the time and type of the fault, so as to facilitate subsequent troubleshooting and maintenance work.

[0035] The method for using the staggered winding device provided by the present invention is as follows:

[0036] First, according to the actual production situation, the expansion and contraction frequency of the piston rod 3 is set in the controller, and the limit stroke of the piston rod 3 is set to determine the misalignment width; after the cloth inspection machine is started normally, the winding mechanism starts to operate. When the winding device counter reaches the set number of misalignment circles, the controller sends a command to the solenoid valve 13 to supply air to the cylinder 2, and the piston rod 3 drives the U-shaped deviation correction sensor 6 to move together, and stops after moving to one end of the cylinder 2. The new position signal of the U-shaped deviation correction sensor 6 will be transmitted to the controller in time, and then the controller will send a command to the electric push rod of the guide motion unit. The electric push rod pushes the guide roller 7 to rotate a certain angle, and the edge position of the glass fiber cloth 1 will change immediately and move to the new position point of the U-shaped deviation correction sensor 6. After several movement corrections, the electric push rod and the guide roller 7 will finally accurately maintain the edge of the glass fiber cloth 1 at the new position point of the U-shaped deviation correction sensor 6. In this way, the cloth roll end surface composed of the edge of the glass fiber cloth 1 will be arranged in a staggered manner, and the misaligned winding of the glass fiber cloth 1 will be realized.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A staggered winding device for an ultra-thin glass fiber cloth inspection machine, comprising a glass fiber cloth (1), characterized in that: The invention also comprises a sensor unit and a guide motion unit, wherein the guide motion unit is located upstream of the sensor unit; the sensor unit comprises a U-shaped deviation correction sensor (6), wherein the U-shaped deviation correction sensor (6) is connected to the cylinder (2), and the edge of the glass fiber cloth (1) is located in the U-shaped groove of the U-shaped deviation correction sensor (6); the guide motion unit comprises a cloth guide roller (7), wherein the cloth guide roller (7) is placed on a guide rail, wherein the middle part is fixed on a rotating shaft, and an electric push rod is connected to one side of the guide rail; the glass fiber cloth (1) moves from the guide motion unit toward the sensor unit and is wound on a winding mechanism; and the sensor unit and the guide motion unit are both connected to a controller.

2. The staggered winding device according to claim 1, characterized in that: The cylinder (2) is a double-acting single-rod cylinder, comprising a rodless chamber and a rod chamber connected thereto, wherein the cylinder body of the rodless chamber is fixed on a bracket (5), and a piston rod (3) is provided inside the rod chamber, and the end of the piston rod (3) is fixedly connected to the U-shaped deviation correction sensor (6).

3. The staggered winding device according to claim 2, characterized in that: The rodless cavity and the rod-carrying cavity are both provided with an air pipe (4).

4. The staggered winding device according to claim 3, characterized in that: The stroke of the piston rod (3) is not greater than the upper limit of the unwinding deviation correction distance; and the moving direction of the U-shaped deviation correction sensor (6) is perpendicular to the moving direction of the glass fiber cloth (1).

5. The staggered winding device according to claim 1, characterized in that: A cloth guide roller (7) is provided on one side of the winding mechanism close to the sensor unit.

6. The staggered winding device according to claim 1, characterized in that: The winding mechanism is provided with a paper tube (8), and the glass fiber cloth (1) is wound around the paper tube (8).

7. The staggered winding device according to claim 3, characterized in that: The cylinder (2) further comprises an air source processing unit: comprising an air filter (10), a pressure reducing valve (11) and an oil mist collector (12) connected in sequence, and used for purifying, reducing pressure and lubricating the compressed air; Solenoid valve (13): connected to the air pipe (4) and used to control the air intake and exhaust of the cylinder (2); A limit switch is used to detect the limit travel position of the piston rod (3) and send a signal to the controller.

8. The staggered winding device according to claim 1, characterized in that: The controller is provided with a timing module, which controls the extension and retraction frequency of the piston rod (3) by setting the ventilation time and the air cut-off time.

9. The staggered winding device according to claim 1, characterized in that: The sensor unit further comprises a signal monitoring module connected to the signal output circuit of the U-shaped deflection correction sensor (6), for detecting in real time whether the electrical signal output by the U-shaped deflection correction sensor (6) is within a normal range, and feeding back to the controller.

10. The staggered winding device according to claim 9, characterized in that: It also includes an alarm device, which is connected to the controller.

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