Rotary positioning device

Abstract

The utility model relates to the technical field of glass production, and particularly discloses a rotary positioning device. The rotary positioning device comprises a rack, a rotary adjusting component and a positioning component. The rack is provided with a supporting structure. The rotary adjusting component comprises a first driving piece, a rotary support and an adjusting frame; the positioning component comprises a plurality of positioning assemblies, and the multiple positioning assemblies are used for positioning the multiple side edges of the plate moving to the position above the supporting structure correspondingly. According to the rotary positioning device, the adjusting frame can be driven by the first driving part to move upwards so as to jack up a plate on the supporting structure, then the plate is driven by the rotary support to rotate so as to adjust the rotation angle of the plate, and the situation that rotation of the plate is affected is avoided; the position of the plate can be limited by positioning the edge of the plate through the multiple positioning assemblies, so that the positioning precision of the plate is improved, and the problems that the plate collides when being in butt joint with equipment in the downstream, the product quality is affected and the like are avoided.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of glass production, and particularly relates to a rotary positioning device. BACKGROUND

[0002] In the processing and production process of panel objects such as solar panels, substrate glass, and float glass, due to different front-end feeding forms and equipment connection problems, the positioning requirements of the objects are extremely high, and some objects need to be rotated by 90° or 180° to meet the processing quality of the next process.

[0003] To this end, the panel objects such as solar panels, substrate glass, and float glass are mainly driven to rotate by a direct drive motor. If the transmission shaft is stuck or misaligned during rotation, the rotation will stop or not be in place, and the positioning function cannot be completed after rotation, resulting in inaccurate positioning, collision when interfacing with downstream equipment, and affecting product quality. CONTENT OF THE UTILITY MODEL

[0004] One of the technical problems to be solved by the present disclosure is that the current panel is not in place during the rotation positioning process, and the positioning is not accurate.

[0005] To solve the above technical problems, the present disclosure provides a rotary positioning device, which comprises:

[0006] A rack is provided with a support structure for supporting a panel;

[0007] A rotary adjusting member comprises a first driving member, a rotary support, and an adjusting frame provided on the top of the rotary support, the first driving member being capable of driving the rotary support and the adjusting frame to move relative to the support structure along the vertical direction; and

[0008] A positioning member comprises a plurality of positioning assemblies, and the plurality of positioning assemblies are respectively positioned on a plurality of side edges of the panel moved above the support structure.

[0009] In some embodiments, the positioning assembly comprises a horizontal driving member provided on the rack and a positioning wheel provided on the horizontal driving member, and the horizontal driving member is capable of driving the positioning wheel to approach or move away from the side edge of the panel.

[0010] In some embodiments, the positioning assembly further comprises a vertical driving member provided on the horizontal driving member, and the positioning wheel is provided on the vertical driving member, and the vertical driving member is capable of driving the positioning wheel to move along the vertical direction, and the horizontal driving member is capable of driving the vertical driving member to approach or move away from the side edge of the panel.

[0011] In some embodiments, the positioning assembly is three, and the three positioning assemblies are respectively opposite to the positions of the three side edges of the panel.

[0012] In some embodiments, the positioning assembly is supported above the support structure by a support.

[0013] In some embodiments, the rotary positioning device further comprises a flexible jacking member, the flexible jacking member comprising a second driving member and a plurality of row brush supports uniformly arranged, the second driving member being capable of moving the plurality of row brush supports along the vertical direction relative to the support structure.

[0014] In some embodiments, the first driving member comprises a lifting cylinder arranged on the rack, a jacking plate being arranged on the top of the lifting cylinder, and the bottom of the rotary support being connected with the jacking plate.

[0015] In some embodiments, a guide member is arranged on the rack, the guide member guiding the jacking plate to move along the vertical direction.

[0016] In some embodiments, the rotary support comprises a rotary motor arranged on the top of the jacking plate and a support disc arranged on the top of the output shaft of the rotary motor, and the middle part of the adjusting frame abutting against the support disc.

[0017] In some embodiments, the support structure comprises a support plate arranged on the rack and a conveying belt group arranged on the top of the support plate, and the top surface of the conveying belt group forming a support surface for supporting the plate.

[0018] Through the above technical solution, the rotary positioning device provided by the present disclosure can drive the adjusting frame to move upward by the first driving member, so as to lift the plate on the support structure, so that the plate is separated from the support structure, and then the plate is rotated by the rotary support, so as to realize the adjustment of the rotation angle of the plate, avoid the influence on the rotation of the plate, ensure the accuracy of the rotary positioning, and at the same time, the position of the plate can be limited by the positioning of the edge of the plate by the plurality of positioning assemblies, so as to increase the positioning accuracy of the plate, avoid the collision of the plate when the plate is connected to the downstream equipment, and avoid the occurrence of problems such as affecting the product quality. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0020] Figure 1 is a structural schematic view of the rotary positioning device disclosed by the embodiments of the present disclosure;

[0021] Figure 2 is a front view of the rotary positioning device disclosed by the embodiments of the present disclosure;

[0022] Figure 3 is a side view of the rotary positioning device disclosed by the embodiments of the present disclosure;

[0023] Figure 4 is a top view of the rotary positioning device disclosed by the embodiments of the present disclosure.

[0024] Explanation of reference signs:

[0025] 1, frame; 11, support structure; 111, support plate; 112, conveyor belt group; 1121, avoiding opening; 12, support; 2, rotary adjusting member; 21, first driving member; 211, lifting cylinder; 212, jacking plate; 22, rotary support; 221, rotary motor; 222, support disc; 23, adjusting frame; 24, guide member; 3, positioning assembly; 31, horizontal driving member; 32, positioning wheel; 33, vertical driving member; 4, flexible jacking member; 41, second driving member; 42, brush support member. DETAILED DESCRIPTION

[0026] The embodiments of the present disclosure will be further described in detail below with reference to the drawings and examples. The detailed description and drawings of the following examples are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure, and the present disclosure can be implemented in many different forms, and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0027] The present disclosure provides these embodiments in order to make the present disclosure thorough and complete, and fully express the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the composition of materials, numerical expressions and values set forth in these embodiments should be interpreted as merely exemplary, and not as a limitation.

[0028] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like are only for facilitating the description of the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] In addition, the "first", "second", and similar words used in the present disclosure do not represent any order, number or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0030] It should also be noted that in the description of the present disclosure, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances. When it is described that a specific device is located between the first device and the second device, there can be or can not be an intermediate device between the specific device and the first device or the second device.

[0031] All terms used in the present disclosure have the same meaning as understood by those skilled in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or excessively formalized sense, unless specifically defined here.

[0032] Techniques, methods and devices known to those skilled in the relevant art can not be discussed in detail, but where appropriate, the techniques, methods and devices should be considered as part of the specification.

[0033] In combination Figures 1 to 4 According to the rotating positioning device provided by the embodiments of the present disclosure, the rotating positioning device comprises a rack 1, a rotating adjusting member 2 and a positioning member.

[0034] The rack 1 is provided with a support structure 11 for supporting a plate 111 material, that is, a support surface is formed on the top of the support structure 11, which can support a solar cell panel, a substrate glass, a float glass and the like, and the plate material on the support structure 11 can be moved to the next process by the support structure 11 itself or other equipment.

[0035] The rotating adjusting member 2 comprises a first driving member 21 arranged on the rack 1, a rotating support 22, and an adjusting frame 23 arranged on the top of the rotating support 22, wherein the first driving member 21 is arranged on the bottom of the rack 1, and the first driving member 21 is connected with the rack 1 in a manner not limited by the present application, and can be designed according to actual requirements, the output shaft of the first driving member 21 extends vertically upward, the rotating support 22 is arranged on the top of the output shaft of the first driving member 21, and the adjusting frame 23 is arranged on the top of the rotating support 22, so that the first driving member 21 can drive the rotating support 22 and the adjusting frame 23 to move along the vertical direction relative to the support structure 11, thereby enabling the adjusting frame 23 to move above the support structure 11 to lift the plate on the support structure 11, and enabling the rotating support 22 to drive the adjusting frame 23 to rotate, so as to drive the plate on the adjusting frame 23 to rotate to a preset angle, thereby completing the adjustment of the angle of the plate; or the adjusting frame 23 moves below the support structure 11, so that the plate after the adjustment of the angle is placed on the top of the support structure 11. The rotating angle of the plate can be 90° or 180°, and it can be understood that the rotating angle of the plate can also be other angles, which can be adjusted according to actual requirements.

[0036] The positioning member comprises a plurality of positioning assemblies 3, and the plurality of positioning assemblies 3 are respectively arranged to position a plurality of side edges of the plate moved above the support structure 11. Specifically, after the adjusting frame 23 lifts the plate and adjusts the angle of the plate (or the plate is lifted by the flexible lifting member 4 described below), the travel of the plurality of positioning assemblies 3 is arranged to enable the positioning assemblies 3 to move towards the side edge direction of the plate corresponding to the positioning assemblies 3, thereby abutting against the edge of the plate, so as to adjust the position of the plate and realize the positioning of the plate, and then the plate is lowered onto the support structure 11, thereby facilitating the production of the next process, and only the parameters need to be changed in subsequent processing, so that the positions are reduced, the manufacturing cost is reduced, the personnel cost is reduced in production, the difficulty of debugging and processing is improved, and the production efficiency is improved.

[0037] The rotating positioning device provided by the present application can drive the adjusting frame 23 to move upward by the first driving member 21 to lift the plate on the support structure 11, so that the plate is separated from the support structure 11, and then the plate is rotated by the rotating support 22 to realize the adjustment of the rotating angle of the plate, thereby avoiding the influence on the rotation of the plate, ensuring the accuracy of the rotating positioning, and enabling the position of the plate to be limited by the positioning of the edge of the plate by the plurality of positioning assemblies 3, so as to increase the positioning accuracy of the plate, avoid the collision of the plate with the downstream docking equipment, and avoid the occurrence of problems such as the influence on the product quality.

[0038] In some embodiments, in combination with Figure 1 and Figure 2As shown, the positioning assembly 3 comprises a horizontal drive 31 arranged on the rack 1 and a positioning wheel 32 arranged on the horizontal drive 31, and the horizontal drive 31 can drive the positioning wheel 32 to move close to or away from the side edge of the plate.

[0039] Specifically, the horizontal drive 31 is a linear module arranged along the horizontal direction to drive the positioning wheel 32 to move along the direction close to or away from the plate. The linear module can directly drive the positioning wheel 32 to move or drive the positioning wheel 32 to move through the vertical drive 33 described below, which can be designed according to actual needs.

[0040] In this design, the distance of the positioning wheel 32 moving can be adjusted by adjusting the stroke of the linear module, so as to position the position of the side edge of the plate through the contact between the positioning wheel 32 and the corresponding side edge of the plate, and then position the position of the plate through multiple positioning assemblies 3, which is convenient to adjust and accurate to position.

[0041] In some embodiments, continuing to refer to Figure 1 and Figure 2 , the positioning assembly 3 further comprises a vertical drive 33 arranged on the horizontal drive 31, and the positioning wheel 32 is arranged on the vertical drive 33, and the vertical drive 33 can drive the positioning wheel 32 to move along the vertical direction, and the horizontal drive 31 can drive the vertical drive 33 to move close to or away from the side edge of the plate.

[0042] Specifically, when the horizontal drive 31 is a linear module, an adjusting plate is connected to the linear module, the vertical drive 33 is connected to the adjusting plate, the linear module can drive the vertical drive 33 to move along the horizontal direction through the adjusting plate, and then drive the positioning wheel 32 to move along the horizontal direction. The vertical drive 33 can also be a linear module, or an electric push rod, and when the vertical drive 33 is a linear module, the vertical drive 33 extends along the vertical direction to drive the positioning wheel 32 to move along the vertical direction; when the vertical drive 33 is an electric push rod, the output shaft of the electric push rod moves vertically downward to drive the positioning wheel 32 to move along the vertical direction, which is not limited.

[0043] In this design, when the plate needs to be positioned, the first drive 21 or the flexible jacking member 4 described below drives the plate to move upward and away from the support structure 11, at this time, in order to increase the work efficiency and reduce the stroke of the first drive 21 and the flexible jacking member 4, the vertical drive 33 drives the positioning wheel 32 to move downward, so that the plate and the positioning wheel 32 are opposite in the horizontal direction, and then the horizontal drive 31 drives the vertical drive 33 and the positioning wheel 32 to move along the horizontal direction to position the plate, which is convenient to adjust and fast to position.

[0044] In some embodiments, the rotation angle of the board is 90° or 180°, at which time, the combination Figure 1 and Figure 4 As shown, the vertical driving member 33 is connected with a positioning plate, the vertical driving member 33 drives the positioning plate to move along the vertical direction, and the positioning wheel 32 is two, which are arranged at intervals to increase the accuracy of positioning the edge of the board.

[0045] In some embodiments, the positioning assembly 3 is three, which are respectively opposite to the positions of the three side edges of the board. Specifically, the moving direction of the board is the first direction, and the vertical direction of the moving direction of the board is the second direction, wherein two positioning assemblies 3 are arranged at intervals along the second direction, and the board is located between the two positioning assemblies 3, so as to position the corresponding two side edges of the board through the two positioning assemblies 3. Another positioning assembly 3 is located on one side of the advancing direction of the board to position the side edge of the side of the board to ensure the accuracy of the positioning of the board.

[0046] In some embodiments, the positioning assembly 3 is supported above the support structure 11 by the bracket 12. Specifically, the rack 1 adopts a frame structure to reduce its own weight. The bracket 12 also adopts a frame structure, and the bracket 12 is located at the top of the rack 1, and the positioning assembly 3 is arranged on the bracket 12 to support the positioning assembly 3 above the support structure 11 through the bracket 12, which is simple in structure and further reduces its own weight.

[0047] In some embodiments, as shown in Figure 1 and Figure 4 The rotating positioning device further comprises a flexible jacking member 4, wherein the flexible jacking member 4 comprises a second driving member 41 and a plurality of row brush supports 42 arranged uniformly, and the second driving member 41 can drive the plurality of row brush supports 42 to move along the vertical direction relative to the support structure 11.

[0048] In this design, when the rotating adjusting member 2 adjusts the rotation angle of the board through the adjusting frame 23, the board falls on the support structure 11, at which time, the second driving member 41 drives the row brush support 42 to move upward to lift the board through the top of the row brush support 42, and cooperate with the positioning assembly 3 to realize the positioning of the board, and the second driving member 41 drives the row brush support 42 to move downward, so that the board falls on the support structure 11. When the board is positioned, the board rotates relative to the row brush support 42, and the way that the row brush support 42 supports the board 111 can avoid scratching the board, and ensure the finished product effect.

[0049] In some embodiments, the row brush support 42 comprises a row brush and a support rod for supporting the row brush, which are arranged in sequence, and the second driving member 41 can drive the support rod to move along the vertical direction, thereby driving the row brush to move along the vertical direction. The second driving member 41 can be a lifting cylinder 211 or an electric push rod, etc. There can be multiple second driving members 41 to drive multiple row brush supports 42 to move respectively. Alternatively, there can be one second driving member 41, and the output end of the second driving member 41 is connected to multiple support rods through a support plate, so that one second driving member 41 can drive multiple row brush supports 42 to move along the vertical direction.

[0050] In some embodiments, the row brush support 42 is arranged in two rows, and each row comprises multiple row brush supports 42 arranged at intervals. The row brush supports 42 are staggered with the conveying belt group 112 and the adjusting frame 23 to avoid mutual influence. The multiple row brush supports 42 can uniformly support the bottom of the plate, thereby ensuring the supporting effect of the plate.

[0051] In some embodiments, the first driving member 21 comprises a lifting cylinder 211 arranged on the rack 1. The output shaft of the lifting cylinder 211 extends vertically upward. The top of the lifting cylinder 211 is provided with a jacking plate 212, i.e., the top of the output shaft of the lifting cylinder 211 is provided with the jacking plate 212. The jacking plate 212 is driven by the lifting cylinder 211 to move along the vertical direction. The bottom of the rotating support 22 is connected to the jacking plate 212, thereby driving the rotating support 22 and the adjusting frame 23 to move along the vertical direction by the jacking plate 212. The first driving member 21 has a simple structure and can provide sufficient jacking force.

[0052] In some embodiments, the rack 1 is provided with a guide member 24, which guides the jacking plate 212 to move along the vertical direction.

[0053] In this design, the guide member 24 can guide the movement of the jacking plate 212, thereby avoiding the jacking plate 212 moving away from the vertical direction, and ensuring the stability of the driving and the accuracy of the position adjustment.

[0054] In some embodiments, the guide member 24 comprises an inner tube and an outer tube that are sleeved. The inner tube and the outer tube extend along the vertical direction. The bottom end of the outer tube is connected to the bottom of the rack 1, and the top end of the inner tube is connected to the bottom end of the jacking plate 212. The bottom end of the inner tube is inserted into the outer tube through the top end of the outer tube, so that the inner tube and the outer tube are in sliding fit, thereby guiding the movement of the jacking plate 212 through the outer tube and the inner tube.

[0055] In some embodiments, the row brush support 42 is arranged in two rows, and each row comprises multiple row brush supports 42 arranged at intervals. The row brush supports 42 are staggered with the conveying belt group 112 and the adjusting frame 23 to avoid mutual influence. The multiple row brush supports 42 can uniformly support the bottom of the plate, thereby ensuring the supporting effect of the plate. Figure 2 and Figure 3As shown, the rotating support 22 includes a rotating motor 221 disposed on the top of the lifting plate 212 and a support plate 222 disposed on the top of the output shaft of the rotating motor 221. The middle part of the adjusting frame 23 abuts against the support plate 222.

[0056] In this design, the rotary motor 221 can drive the support plate 222 to rotate, which in turn drives the adjustment frame 23 that abuts against the support plate 222 to rotate, thereby changing the angle of the plate and making adjustment convenient.

[0057] In some embodiments, combined with Figure 1 and Figure 4 As shown, the adjustment frame 23 includes a cross support and a rectangular frame disposed on the outer periphery of the cross support. That is, the cross support and the rectangular frame form the adjustment frame 23, so that the adjustment frame 23 can be supported on the bottom of the plate. In this design, the adjustment frame 23 will not interfere with the support structure 11, ensuring that the vertical movement and horizontal rotation of the adjustment frame 23 can be carried out smoothly.

[0058] In some embodiments, a support pad is provided on the top of the adjustment frame 23. The support pad may be made of rubber or the like to prevent the plate from contacting the adjustment frame 23 and causing damage to the adjustment frame 23.

[0059] In some embodiments, the support structure 11 includes a support plate 111 disposed on a frame 1 and a conveyor belt assembly 112 disposed on top of the support plate 111, the top surface of the conveyor belt assembly 112 forming a support surface for supporting the plate 111. The conveyor belt assembly 112 includes multiple conveyor belts disposed on the frame 1, the multiple conveyor belts having the same conveying direction to transport the plate material. Figure 1 and Figure 4 As shown, there are two rows of conveyor belts, with multiple conveyor belts in each row. The multiple conveyor belts are spaced apart, and the conveyor belts are staggered from the brush support 42 and the adjustment frame 23 mentioned above to avoid mutual interference.

[0060] In some embodiments, the conveyor belt is provided with a clearance opening 1121 to allow the end of the adjusting frame 23 to move vertically. The clearance opening 1121 should be lower than the top surface of the conveyor belt, which can be achieved by setting a guide wheel. That is, the guide wheel is located below the top surface of the conveyor belt, and the conveyor belt passes around the bottom of the guide wheel to form the clearance opening 1121 above the guide wheel.

[0061] The rotating positioning device provided by the present disclosure is used in the process that the solar panel, the substrate glass, the float glass and other plates pass through the upstream conveying belt to the upper part of the adjusting frame 23 of the conveying belt of the device, the plate is detected and stopped by the detection sensor, the plate is stopped at the set position, then the lifting cylinder 211 is started, the lifting cylinder 211 drives the rotating support 22 and the adjusting frame 23 to move upwards to lift the plate to be above the conveying belt. When the plate rises to the set position, the rotating motor 221 is started, and is rotated to the required angle (90° or 180° or other angles) according to the set parameters, the lifting cylinder 211 is retracted, and the plate after the angle adjustment falls into the top of the conveying belt. At this time, the flexible lifting member 4 is started, the top of the brush support 42 is stretched out, the plate is supported higher than the position of the conveying belt, the positioning member is started, the vertical driving part 33 drives the positioning wheel 32 to move downwards to make the positioning wheel 32 opposite to the position of the plate in the horizontal direction, the horizontal driving part 31 is started, and the positioning of the plate in the left-right direction and the conveying direction is completed. After the positioning is completed, the positioning assembly 3 returns to the original position, the flexible lifting member 4 is retracted, the plate falls on the conveying belt, and the lifting and rotating positioning function of the solar panel, the substrate glass, the float glass and other plates is completed. The device effectively solves the problems that the solar panel, the substrate glass, the float glass and other plates cannot be rotated to the position, the positioning is not accurate, and the downstream collision occurs. The accuracy of the rotation and the positioning is improved, the stability of the equipment operation is improved, and the production efficiency is improved.

[0062] So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0063] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, and are not intended to limit the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be replaced equivalently without departing from the scope and spirit of the present disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. A rotational positioning device, characterized by, The utility model relates to a kind of rotating positioning device, including: Rack (1) is equipped with the support structure (11) for supporting board (111) material; Rotary adjusting component (2), including the first driving element (21) being arranged on the rack (1), rotary support (22) and the adjusting frame (23) being arranged on the top of rotary support (22), the first driving element (21) can drive rotary support (22) and adjusting frame (23) relative to the support structure (11) along vertical direction movement; And Positioning component, including multiple positioning assemblies (3), multiple positioning assemblies (3) respectively position multiple side edges of board material moving to the support structure (11) above.

2. The rotational positioning device of claim 1, wherein, The positioning assembly (3) includes a horizontal drive (31) disposed on the rack (1) and a positioning wheel (32) disposed on the horizontal drive (31), and the horizontal drive (31) can drive the positioning wheel (32) to approach or move away from the side edge of the board.

3. The rotational positioning device of claim 2, wherein, The positioning assembly (3) further includes a vertical drive (33) disposed on the horizontal drive (31), and the positioning wheel (32) is disposed on the vertical drive (33), and the vertical drive (33) can drive the positioning wheel (32) to move along the vertical direction, and the horizontal drive (31) can drive the vertical drive (33) to approach or move away from the side edge of the board.

4. The rotational positioning device of claim 1, wherein, The positioning assembly (3) is three, and the three positioning assemblies (3) are respectively opposite to the positions of the three side edges of the board.

5. The rotational positioning device of claim 1, wherein, The positioning assembly (3) is supported above the support structure (11) by a support (12).

6. The rotational positioning apparatus as recited in claim 1, wherein The rotating positioning device further includes a flexible jacking component (4), the flexible jacking component (4) includes a second driving element (41) and a plurality of row brush supports (42) uniformly arranged, and the second driving element (41) can drive a plurality of row brush supports (42) to move along the vertical direction relative to the support structure (11).

7. The rotational positioning apparatus of claim 1, wherein The first driving element (21) includes a lifting cylinder (211) disposed on the rack (1), and the top of the lifting cylinder (211) is provided with a jacking plate (212), and the bottom of the rotary support (22) is connected with the jacking plate (212).

8. The rotational positioning device of claim 7, wherein, The rack (1) is provided with a guide (24), and the guide (24) plays a guiding role for the jacking plate (212) moving along the vertical direction.

9. The rotational positioning apparatus of claim 7, wherein, The rotary support (22) includes a rotary motor (221) disposed on the top of the jacking plate (212) and a support disc (222) disposed on the top of the output shaft of the rotary motor (221), and the middle part of the adjusting frame (23) is abutted with the support disc (222).

10. The rotational positioning apparatus of claim 1, wherein, The support structure (11) includes a support plate (111) disposed on the rack (1) and a conveyor belt group (112) disposed on the top of the support plate (111), and the top surface of the conveyor belt group (112) forms a support surface for supporting the board (111) material.

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