Strip detection mechanism

Abstract

The utility model provides a strip detection mechanism, which comprises a mounting seat, a supporting piece, a pressing piece, a moving rod, an elastic piece and a sensor, and is characterized in that the supporting piece is mounted on the mounting seat; the moving rod is slidably mounted on the mounting base in the first direction, and an elastic piece is arranged between the moving rod and the mounting base. The pressing piece is installed at the first end of the moving rod, the strip penetrates through the position between the pressing piece and the supporting piece in the second direction, the pressing piece elastically presses the strip to abut against the supporting piece under pushing of the elastic piece, the second direction is perpendicular to the first direction, and the first direction is the thickness direction of the strip; the sensor is installed on the installation base, and when the movable rod slides to the sensing position away from the supporting piece in the first direction, the sensor is triggered to generate a sensing signal. According to the strip detection mechanism provided by the invention, automatic detection and positioning of the splicing section with relatively large thickness on the strip can be implemented, subsequent cutting of the strip can be implemented by avoiding the splicing section according to a detection result, and it is ensured that no splicing section exists on the cut target strip.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic cell module production equipment, and more specifically to a strip detection mechanism. Background Art

[0002] During the production process of photovoltaic modules, there is a process of welding busbars to the ends of the battery string groups that have been typeset. Before welding the busbars, it is necessary to cut the busbars released from the material roll to obtain busbars with a target length value.

[0003] When the busbars on the busbar material roll are almost used up, a new material roll needs to be replaced. To ensure the continuous supply of busbars, when cutting the busbars on the old material roll and removing the old material roll, it is necessary to connect the end of the busbar left after cutting with the free end of the busbar on the new material roll. A connecting section with a thickness greater than the normal thickness of the busbar will be left at the connection.

[0004] Existing strip preparation devices cannot automatically detect and locate the connecting sections on the busbars, resulting in busbars with connecting sections flowing into the busbar welding station, ultimately reducing the quality of photovoltaic modules. Summary of the Utility Model

[0005] In order to solve the above technical problems, the present application provides a strip detection mechanism, which adopts the following technical solutions:

[0006] A strip detection mechanism includes a mounting base, a support member, a pressing member, a moving rod, an elastic member, and a sensor, wherein:

[0007] The support member is mounted on the mounting base;

[0008] The moving rod is slidably mounted on the mounting base along a first direction, and an elastic member is provided between the moving rod and the mounting base;

[0009] The pressing member is mounted on the first end of the moving rod. The strip passes through between the pressing member and the support member along a second direction. The pressing member elastically presses the strip against the support member under the pushing of the elastic member. The second direction is perpendicular to the first direction, and the first direction is the thickness direction of the strip;

[0010] The sensor is mounted on the mounting base. When the moving rod slides away from the support member along the first direction to the sensing position, the sensor is triggered to generate a sensing signal.

[0011] The strip detection mechanism provided by this application is such that the pressing member can press the strip against the supporting member under the pushing of the elastic member. During the continuous movement of the strip between the pressing member and the supporting member, when the continuous section on the strip passes between the pressing member and the supporting member, since the thickness of the continuous section is thicker than that of the other parts, the pressing member will move away from the supporting member under the pushing of the continuous section, driving the moving rod to move to the sensing position and then triggering the sensor, thereby implementing the automatic detection and positioning of the continuous section with a larger thickness on the strip. Subsequently, the cutting of the strip can be carried out while avoiding the continuous section according to the detection result, ensuring that there is no continuous section on the target strip cut out, and thus preventing the strip with the continuous section from flowing into the subsequent process.

[0012] In some embodiments, the mounting seat includes a first seat body and a second seat body, where: the second seat body is connected to the first seat body in a position-adjustable manner along a first direction; the moving rod is slidably inserted through the second seat body, and the elastic member is arranged between the moving rod and the second seat body.

[0013] By adjusting the mounting position of the second seat body in the first direction, the pushing force of the elastic member is adjusted, so that the strip detection mechanism of this application can adapt to the detection of strips with various different thicknesses, increasing the compatibility.

[0014] A waist-shaped hole extending along the first direction is provided on one of the first seat body and the second seat body, and a connecting screw hole cooperating with the waist-shaped hole is provided on the other of the first seat body and the second seat body. The second seat body is connected to the first seat body by a bolt passing through the waist-shaped hole and the connecting screw hole.

[0015] A position adjustment method with a simple structure and convenient adjustment is provided. When it is necessary to adjust the mounting position of the second seat body, first loosen the bolt, push the second seat body to slide in place along the first direction, and then fix the bolt again.

[0016] In some embodiments, a limiting portion is provided on the moving rod, the elastic member is a spring, the spring is sleeved on the moving rod, the first end of the spring elastically abuts against the limiting portion, and the second end of the spring elastically abuts against the mounting seat.

[0017] The spring is sleeved on the moving rod, and after being compressed, it can uniformly apply the elastic force to the moving rod along the first direction, so that the pressing member can stably press the strip elastically against the supporting member, and the moving rod can smoothly slide away from the supporting member along the first direction to the sensing position to trigger the sensor.

[0018] In some embodiments, the supporting member includes a first roller, and the first roller is rotatably installed on the mounting seat.

[0019] Using the first roller as the supporting member, when the strip is conveyed along the second direction, the obstruction and friction of the supporting member to the strip can be reduced.

[0020] In some embodiments, the pressing member includes a second roller, which is rotatably mounted at the first end of the moving rod.

[0021] By using the second roller as the pressing member, when the strip is conveyed in the second direction, the obstruction and friction of the pressing member to the strip can be reduced.

[0022] In some embodiments, the sensor is a proximity sensor or a photoelectric sensor.

[0023] Two sensors with simple structures and sensitive responses are provided, and both of them can be triggered to generate induction signals when the moving rod slides away from the support member in the first direction to the induction position.

[0024] In some embodiments, the second end of the moving rod passes through the mounting seat outward, the sensor is mounted on the mounting seat and close to the second end of the moving rod, and when the moving rod slides to the induction position, the second end of the moving rod triggers the sensor; alternatively, a triggering member is provided on the moving rod, the sensor is mounted on the mounting seat and close to the triggering member, and when the moving rod slides to the induction position, the triggering member triggers the sensor.

[0025] Triggering the sensor through the second end of the moving rod makes the structure of the strip detection mechanism simpler and the cost lower. By providing a triggering member on the moving rod, the triggering reliability of the sensor can be improved.

[0026] In some embodiments, a limiting cavity is provided in the mounting seat, the moving rod penetrates through the limiting cavity, a limiting shaft perpendicular to the moving rod is provided on the moving rod, and the limiting shaft is slidably inserted into the limiting cavity. The limiting cavity and the limiting shaft are used to limit the sliding stroke of the moving rod in the first direction.

[0027] The sliding stroke of the moving rod in the first direction is limited, preventing the pressure of the pressing member on the strip from being too large and affecting the normal conveyance of the strip in the second direction.

[0028] In some embodiments, the strip detection mechanism further includes a guiding and pressing wheel rotatably mounted on the mounting seat. The guiding and pressing wheel is arranged behind the pressing member and is used to limit the jumping of the strip in the first direction.

[0029] By providing the guiding and pressing wheel, the jumping of the strip is limited, and finally it is ensured that the strip is stably conveyed backward in the second direction. Description of the Drawings

[0030] Figure 1 It is a schematic structural diagram of the strip detection mechanism in an embodiment of the present application from one perspective;

[0031] Figure 2 It is a schematic structural diagram of the strip detection mechanism in an embodiment of the present application from another perspective;

[0032] Figure 3 is Figure 2 the A-A cross-sectional view of;

[0033] Figure 4 is Figure 3 the B-B cross-sectional view of.

[0034] Figures 1 to 4 It includes: mounting base 1, support member 2, pressing member 3, moving rod 4, elastic member 5, sensor 6, waist-shaped hole 7, threaded hole 8, guiding press wheel 9, limiting cavity 10, limiting shaft 110, first seat body 11, and second seat body 12. Detailed implementation manners

[0035] To make the above objects, features, and advantages of the present application more obvious and understandable, the present application will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0036] As Figures 1 to 4 shown, the strip detection mechanism in the embodiment of the present application includes a mounting base 1, a support member 2, a pressing member 3, a moving rod 4, an elastic member 5, and a sensor 6, where:

[0037] The support member 2 is mounted on the mounting base 1.

[0038] The moving rod 4 is slidably mounted on the mounting base 1 along a first direction, and an elastic member 5 is provided between the moving rod 4 and the mounting base 1.

[0039] The pressing member 3 is mounted on the first end of the moving rod 4. The strip passes through between the pressing member 3 and the support member 2 along a second direction. The pressing member 3 elastically presses the strip against the support member 2 under the pushing of the elastic member 5. The second direction is perpendicular to the first direction, and the first direction is the thickness direction of the strip.

[0040] The sensor 6 is mounted on the mounting base 1. When the moving rod 4 slides away from the support member 2 along the first direction to the sensing position, the sensor 6 is triggered to generate a sensing signal.

[0041] Since the thickness of the continuous section on the strip is greater than the thickness of the normal part of the bus bar (i.e., the remaining part except the continuous section), and when the strip passes through between the pressing member 3 and the support member 2 along the second direction, the pressing member 3 continuously elastically presses the strip against the support member 2.

[0042] When the normal part of the strip passes through between the pressing member 3 and the support member 2, the distance between the pressing member 3 and the support member 2 is equal to the thickness value of the normal part of the strip, and the moving rod 4 deviates from the sensing position. When the continuous section on the strip enters between the pressing member 3 and the support member 2, the continuous section pushes the moving rod 4 in the direction away from the support member 2, thereby driving the moving rod 4 to slide away from the support member 2 along the first direction to the sensing position, so that the sensor 6 is triggered to generate a sensing signal.

[0043] It can be seen that the strip detection mechanism of the embodiment of the present application can automatically detect and locate the thick continuous section on the strip. Subsequently, the cutting of the strip can be performed by avoiding the continuous section according to the detection result, ensuring that there is no continuous section on the cut target strip, and thus preventing the strip with the continuous section from flowing into the subsequent process.

[0044] Since the new and old busbars are continuously connected by means of lap welding, the thickness of the continuous section is thicker than that of the other parts of the busbar. Therefore, the strip detection mechanism of the embodiment of the present application is suitable for detecting and locating the continuous section on the busbar.

[0045] As Figures 1 to 4 shown, optionally, the strip passes through between the pressing member 3 and the supporting member 2 in the horizontal direction (the X-axis direction in the figure). The moving rod 4 is slidably mounted on the mounting seat 1 in the vertical direction (the Z-axis direction in the figure), that is, the first direction is the vertical direction and the second direction is the horizontal direction. The pressing member 3 is mounted at the lower end of the moving rod 4, and the supporting member 2 is located below the pressing member 3. The pressing member 3 presses the strip downward against the supporting member 2. When the continuous section on the strip enters between the pressing member 3 and the supporting member 2, the moving rod 4 slides upward to the sensing position, so that the sensor 6 is triggered to generate a sensing signal.

[0046] Since the thickness of different types of strips may vary greatly, in order to ensure that the strip detection mechanism of the present application can detect strips of different thicknesses and increase compatibility. Optionally, the mounting seat 1 includes a first seat body 11 and a second seat body 12, where: the second seat body 12 is connected to the first seat body 11 in a position-adjustable manner in the first direction. The moving rod 4 is slidably inserted into the second seat body 12, and the elastic member 5 is disposed between the moving rod 4 and the second seat body 12.

[0047] Before detecting the strip, the installation position of the second seat body 12 in the first direction can be adjusted according to the thickness of the strip, so as to ensure that when the strip passes through between the pressing member 3 and the supporting member 2, the pressing member 3 can elastically press the strip against the supporting member 2.

[0048] As Figure 2 and Figure 4 shown, optionally, the second seat body 12 is provided with a waist-shaped hole 7 extending in the first direction, and the first seat body 11 is provided with a connecting screw hole 8 matching the waist-shaped hole 7 at the position corresponding to the waist-shaped hole 7. The second seat body 12 is connected to the first seat body 11 by a bolt passing through the waist-shaped hole 7 and the connecting screw hole 8. Of course, the waist-shaped hole 7 can also be provided on the first seat body 11, and the connecting screw hole 8 can be provided on the second seat body 12.

[0049] When it is necessary to adjust the installation position of the second seat body 12, first loosen the bolt, push the second seat body 12 to slide in place in the first direction, and then fix the bolt again.

[0050] Optionally, as Figure 3 and Figure 4 shown, a limiting portion is provided on the moving rod 4. The limiting portion can be, for example, a limiting step or a limiting ring protruding from the moving rod 4. The elastic member 5 is a spring, and the spring is sleeved on the moving rod 4. The first end (such as the lower end) of the spring elastically abuts against the limiting portion, and the second end (such as the upper end) of the spring elastically abuts against the mounting base 1.

[0051] The spring is sleeved on the moving rod 4, and after being compressed, it can uniformly apply elastic force to the moving rod 4 in the first direction, so that the pressing member 3 can stably press the strip against the supporting member 2 elastically, and the moving rod 4 can smoothly slide away from the supporting member 2 in the first direction to the sensing position to trigger the sensor 6.

[0052] As Figures 1 to 4 shown, optionally, the supporting member 2 includes a first roller, and the first roller is rotatably mounted on the mounting base 1. By using the first roller as the supporting member 2, when the strip moves in the second direction, the obstruction and friction of the supporting member 2 to the strip can be reduced. Similarly, optionally, the pressing member 3 includes a second roller, and the second roller is rotatably mounted on the first end of the moving rod 4. Of course, the supporting member 2 and the pressing member 3 can also adopt structural members such as a pressing block and a pressing rod with a smooth pressing surface.

[0053] Optionally, the sensor is a proximity sensor or a photoelectric sensor. When using a proximity sensor, when the moving rod slides away from the supporting member 2 in the first direction to the sensing position, the moving rod 4 approaches or contacts the proximity sensor, so that the proximity sensor generates an induction signal. When using a photoelectric sensor, when the moving rod 4 slides away from the supporting member 2 in the first direction to the sensing position, the moving rod 4 blocks the optical path of the photoelectric sensor or releases the occlusion of the optical path of the photoelectric sensor, so that the photoelectric sensor generates an induction signal.

[0054] Continuing to refer to Figures 1 to 2 shown, optionally, the second end (such as the upper end) of the moving rod 4 passes through the mounting base 1 outward, and the sensor 6 is mounted on the mounting base 1 and close to the second end of the moving rod 4. When the moving rod 4 slides to the sensing position, the second end of the moving rod triggers the sensor 6, so that the sensor 6 generates an induction signal.

[0055] Of course, a triggering member can also be provided on the moving rod 4, and the sensor 6 is mounted on the mounting base and close to the triggering member. When the moving rod 4 slides to the sensing position, the triggering member triggers the sensor 6, so that the sensor 6 generates an induction signal. The triggering member can be, for example, a triggering piece, a triggering block and other structural members.

[0056] As Figure 4As shown, optionally, a limiting cavity 10 is provided in the mounting base 1. The moving rod 4 penetrates through the limiting cavity 10. A limiting shaft 110 perpendicular to the moving rod 4 is provided on the moving rod 4. The limiting shaft 110 is slidably inserted into the limiting cavity 10. The limiting cavity 10 and the limiting shaft 110 are used to limit the sliding stroke of the moving rod 4 in the first direction. In this way, it is possible to prevent the excessive pressure of the pressing member 3 on the strip, which may affect the normal conveyance of the strip in the second direction.

[0057] As Figures 1 to 2 shown, optionally, the strip detection mechanism in the embodiment of the present application further includes a guiding pressure wheel 9 rotatably mounted on the mounting base 1. The guiding pressure wheel 9 is arranged behind the pressing member 3. The guiding pressure wheel is used to limit the jumping of the strip in the first direction.

[0058] When the strip is normally conveyed backward in the second direction, the guiding pressure wheel is higher than the strip and does not contact the strip. When the strip jumps upward, the guiding pressure wheel then limits the jumping of the strip to prevent the strip from jumping too much, and finally ensures the stable backward conveyance of the strip in the second direction.

[0059] The above description of the present application is detailed enough and has a certain particularity. Those of ordinary skill in the art should understand that the description in the embodiments is only exemplary. All changes made without departing from the true spirit and scope of the present application should fall within the protection scope of the present application. The scope of protection required by the present application is defined by the claims described, rather than by the above description in the embodiments.

Claims

1. A strip detection mechanism, characterized in that, The strip detection mechanism includes a mounting base, a support member, a pressing member, a moving rod, an elastic member, and a sensor, where: The support member is mounted on the mounting base; The moving rod is slidably mounted on the mounting base in a first direction, and the elastic member is disposed between the moving rod and the mounting base; The pressing member is mounted on the first end of the moving rod, and the strip passes through between the pressing member and the support member in a second direction perpendicular to the first direction (the first direction is the thickness direction of the strip), and the pressing member elastically presses the strip against the support member under the pushing of the elastic member; The sensor is mounted on the mounting base, and when the moving rod slides away from the support member in the first direction to the sensing position, the sensor is triggered to generate a sensing signal.

2. The strip detection mechanism according to claim 1, characterized in that The mounting base includes a first body and a second body, where: The second body is connected to the first body in a position-adjustable manner in the first direction; The moving rod slidably passes through the second body, and the elastic member is disposed between the moving rod and the second body.

3. The strip detection mechanism according to claim 2, wherein, One of the first body and the second body is provided with a waist-shaped hole extending in the first direction, and the other of the first body and the second body is provided with a connection screw hole cooperating with the waist-shaped hole, and the second body is connected to the first body by a bolt passing through the waist-shaped hole and the connection screw hole.

4. The strip detection mechanism according to claim 1, characterized in that A limiting portion is provided on the moving rod, the elastic member is a spring sleeved on the moving rod, the first end of the spring elastically abuts against the limiting portion, and the second end of the spring elastically abuts against the mounting base.

5. The strip detection mechanism according to claim 1, characterized in that, The support member includes a first roller rotatably mounted on the mounting base.

6. The strip detection mechanism according to claim 1, characterized in that, The pressing member includes a second roller rotatably mounted on the first end of the moving rod.

7. The strip detection mechanism according to claim 1, wherein The sensor is a proximity sensor or a photoelectric sensor.

8. The strip detection mechanism according to claim 1, characterized in that, The second end of the moving rod passes out of the mounting base, the sensor is mounted on the mounting base and close to the second end of the moving rod, and when the moving rod slides to the sensing position, the second end of the moving rod triggers the sensor; or, a triggering member is provided on the moving rod, the sensor is mounted on the mounting base and close to the triggering member, and when the moving rod slides to the sensing position, the triggering member triggers the sensor.

9. The strip detection mechanism according to claim 1, wherein, A limiting cavity is provided in the mounting base, the moving rod passes through the limiting cavity, a limiting shaft perpendicular to the moving rod is provided on the moving rod, and the limiting shaft is slidably inserted into the limiting cavity, and the limiting cavity and the limiting shaft are used to limit the sliding stroke of the moving rod in the first direction.

10. The strip detection mechanism according to claim 1, characterized in that, The strip detection mechanism further includes a guiding and pressing wheel rotatably mounted on the mounting base, the guiding and pressing wheel is disposed behind the pressing member, and the guiding and pressing wheel is used to limit the jumping of the strip in the first direction.

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