Restoration mechanism and vacuum equipment

Abstract

The utility model discloses a restoration mechanism and vacuum equipment. The restoration mechanism comprises a plurality of sliding rails which are distributed on the two opposite sides of the vacuum platform and extend in the direction from the edge of the vacuum platform to the center of the vacuum platform; the plurality of restoration rod brackets and the sliding rail are arranged in pairs, and the restoration rod brackets are arranged to move in the extending direction of the sliding rail and move in the direction perpendicular to the vacuum platform; the plurality of restoration rods are connected with the restoration rod bracket and are arranged to limit the printed circuit board on the vacuum platform under the driving of the restoration rod bracket; and the at least two pressing plates are arranged on the two opposite sides of the vacuum platform, are connected with the restoration rod and are arranged to press or loosen the edge of the printed circuit board on the vacuum platform in the vertical movement process of the restoration rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to printed circuit board production technical field more specifically, relate to a kind of normalizing mechanism and vacuum equipment. BACKGROUND

[0002] Printed circuit board (Printed Circuit Board, PCB) is widely used in various electronic devices. In the production process, the PCB is adsorbed on the platform by using the vacuum equipment, so as to facilitate the various process treatment of the PCB. However, in the alternating production environment of cold and hot, the edge of the PCB is easy to warp, which causes the PCB to be unable to be attached on the vacuum platform completely, and the production process of the PCB is affected. SUMMARY

[0003] The utility model embodiment provides a kind of normalizing mechanism and vacuum equipment, to solve the problem that PCB is unable to be attached on the vacuum platform completely.

[0004] The utility model embodiment provides a kind of normalizing mechanism, comprising: multiple sliding tracks, distribution is in the opposite side of vacuum platform, and extend along the direction from the edge of the vacuum platform to the center of the vacuum platform;Multiple normalizing rod supports are arranged with the sliding track, and are set as moving along the extension direction of the sliding track, and moving in the direction perpendicular to the vacuum platform;Multiple normalizing rods are connected with the normalizing rod support, and are set as being limited to the printed circuit board located on the vacuum platform under the driving of the normalizing rod support;At least two pressing plates are arranged on the opposite side of the vacuum platform, and are connected with the normalizing rod, and are set as being pressed or loosened the edge of the printed circuit board located on the vacuum platform in the process of the normalizing rod vertical motion.

[0005] In an example embodiment, the vacuum platform comprises a first edge and a second edge arranged opposite along a first direction; the plurality of sliding tracks comprises a plurality of first sliding tracks arranged at the first edge and a plurality of second sliding tracks arranged at the second edge; the plurality of homing rod supports comprises a plurality of first homing rod supports arranged at the first edge and a plurality of second homing rod supports arranged at the second edge; the first homing rod supports are arranged in pairs with the first sliding tracks, and the second homing rod supports are arranged in pairs with the second sliding tracks; the first homing rod supports and the second homing rod supports extend along a direction perpendicular to the vacuum platform; the plurality of homing rods comprises a plurality of first homing rods arranged at the first edge and a plurality of second homing rods arranged at the second edge; the plurality of first homing rods are connected with the plurality of first homing rod supports and arranged to move under the drive of the plurality of first homing rod supports; the plurality of second homing rods are connected with the plurality of second homing rod supports and arranged to move under the drive of the plurality of second homing rod supports; the at least two pressing plates comprise a first pressing plate arranged at the first edge and a second pressing plate arranged at the second edge, the first pressing plate is connected with the plurality of first homing rods, and the second pressing plate is connected with the plurality of second homing rods.

[0006] In an example embodiment, further comprising a first connecting frame and a second connecting frame, the first connecting frame is arranged to connect the plurality of first homing rods with the plurality of first homing rod supports to synchronize the movement of the plurality of first homing rods, and the second connecting frame is arranged to connect the plurality of second homing rods with the plurality of second homing rod supports to synchronize the movement of the plurality of second homing rods.

[0007] In an example embodiment, further comprising a plurality of first air cylinders, a plurality of first air cylinder supports, a plurality of second air cylinders, and a plurality of second air cylinder supports; one end of the first homing rod close to the vacuum platform is connected with the first air cylinder, the first air cylinder is connected with the first air cylinder support, and the first air cylinder support is connected with the first homing rod support; the first pressing plate is connected with the other end of the first homing rod away from the vacuum platform; the first air cylinder is arranged to drive the first homing rod to move along a direction perpendicular to the vacuum platform to adjust the force exerted by the first pressing plate on the printed circuit board; one end of the second homing rod close to the vacuum platform is connected with the second air cylinder, the second air cylinder is connected with the second air cylinder support, and the second air cylinder support is connected with the second homing rod support; the second pressing plate is connected with the other end of the second homing rod away from the vacuum platform; the second air cylinder is arranged to drive the second homing rod to move along a direction perpendicular to the vacuum platform to adjust the force exerted by the second pressing plate on the printed circuit board.

[0008] In an exemplary embodiment, a detection device and a control device are also included; the detection device is configured to detect the edge warpage length and edge warpage degree of each edge of the printed circuit board; the control device is configured to control the movement of the first alignment rod bracket and the second alignment rod bracket according to the edge warpage length, so as to adjust the size of the first pressure plate and the second pressure plate covering the edge of the printed circuit board respectively; and is further configured to control the operation of the first cylinder and the second cylinder according to the edge warpage degree, so as to adjust the force applied by the first pressure plate and the second pressure plate on the printed circuit board respectively.

[0009] In an exemplary embodiment, the control device is configured to, upon receiving the edge warpage length, control the movement of the first alignment rod bracket and the second alignment rod bracket according to a pre-set first correspondence; the first correspondence is the correspondence between the edge warpage length and the dimensions of the first pressure plate and the second pressure plate covering the edge of the printed circuit board; the control device is further configured to, upon receiving the edge warpage degree, control the operation of the first cylinder and the second cylinder according to a pre-set second correspondence; the second correspondence is the correspondence between the edge warpage degree and the force exerted on the printed circuit board by the first pressure plate and the second pressure plate.

[0010] In an exemplary embodiment, the plurality of first sliding tracks and the plurality of second sliding tracks extend along the first direction.

[0011] In an exemplary embodiment, the first pressure plate connected to the plurality of first alignment rods is an integral structure, and the second pressure plate connected to the plurality of second alignment rods is an integral structure.

[0012] In an exemplary embodiment, the first pressure plate includes a plurality of first sub-plates, each of which is connected to one or more first alignment rods; the second pressure plate includes a plurality of second sub-plates, each of which is connected to one or more second alignment rods.

[0013] In an exemplary embodiment, a first motor and a second motor are also included; the first motor is electrically connected to the first alignment rod bracket and is configured to drive the first alignment rod bracket to move; the second motor is electrically connected to the second alignment rod bracket and is configured to drive the second alignment rod bracket to move.

[0014] In an exemplary embodiment, the first pressure plate and the plurality of first alignment rods are detachably connected, and the second pressure plate and the plurality of second alignment rods are detachably connected.

[0015] This utility model embodiment also provides a vacuum device, including a vacuum platform and the aforementioned correction mechanism.

[0016] In an exemplary embodiment, the vacuum platform is provided with a plurality of adsorption holes, which are configured to adsorb printed circuit boards located on the vacuum platform; the plurality of adsorption holes are located on the side of the sliding track of the correction mechanism near the center of the vacuum platform.

[0017] In an exemplary embodiment, the system further includes a sensing device and at least one stop; the vacuum platform also includes a third edge and a fourth edge disposed opposite each other along a second direction, the second direction intersecting the first direction; the printed circuit board enters the vacuum platform from the third edge side along the second direction, the at least one stop is disposed on the fourth edge side of the vacuum platform, and the sensing device is configured to sense whether the printed circuit board is in contact with the stop.

[0018] In an exemplary embodiment, an inlet roller is also included; the inlet roller is disposed on the side of the vacuum platform away from the stop bar; the printed circuit board enters the vacuum platform from the third edge after passing through the inlet roller.

[0019] The alignment mechanism provided in this embodiment of the invention uses pressure plates connected to the alignment rod on opposite sides of a vacuum platform. As the alignment rod moves vertically, the pressure plates press or release the edges of the printed circuit board, ensuring that even with significant edge warping, the printed circuit board can be fully attached to the vacuum platform. This helps guarantee the smooth operation of the printed circuit board production process. No additional materials or production steps are required, significantly reducing the cost of the printed circuit board.

[0020] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0021] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solution of this utility model and do not constitute a limitation on the technical solution of this utility model.

[0022] Figure 1 This is a schematic diagram showing the position of the printed circuit board entering the vacuum platform.

[0023] Figure 2 This is a schematic diagram illustrating how an existing alignment mechanism limits the position of a printed circuit board.

[0024] Figure 3 for Figure 1 A side view of the existing correction mechanism along the AA direction;

[0025] Figure 4 for Figure 2 A sectional view along the BB direction;

[0026] Figure 5 This is a top view of the correction mechanism in an exemplary embodiment of the present invention;

[0027] Figure 6 In an exemplary embodiment Figure 5 Side view of the corrector mechanism along the CC direction;

[0028] Figure 7 This is a top view of the corrector mechanism in yet another exemplary embodiment. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

[0030] In the description of this utility model, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "'mouth' structure", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, or is constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "connection," "direct connection," "indirect connection," "fixed connection," "installation," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. The terms "installation," "connection," and "fixed connection" can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal communication between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0032] In the accompanying drawings, the size of one or more constituent elements, the thickness of layers, or areas are sometimes exaggerated for clarity. Therefore, one aspect of the invention is not necessarily limited to these dimensions, and the shape and size of one or more components in the drawings do not reflect true proportions. Furthermore, the drawings schematically illustrate ideal examples, and one aspect of the invention is not limited to the shapes or values ​​shown in the drawings.

[0033] In this invention, ordinal numbers such as "first," "second," and "third" are used to avoid confusion among the constituent elements, not to limit the quantity. In this invention, "multiple" refers to two or more quantities.

[0034] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "connection," "direct connection," "indirect connection," "fixed connection," "installation," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. The terms "installation," "connection," and "fixed connection" can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0035] In this invention, "electrical connection" includes the situation where constituent elements are connected together by a component having a certain electrical function. There are no particular limitations on the "component having a certain electrical function," as long as it enables the transmission of electrical signals between the connected constituent elements. Examples of "components having a certain electrical function" include not only electrodes and wiring, but also switching elements such as transistors, resistors, inductors, capacitors, and other components with various functions.

[0036] In this invention, "parallel" refers to the state where the angle formed by two straight lines is greater than -10° and less than 10°, and therefore also includes the state where the angle is greater than -5° and less than 5°. Furthermore, "perpendicular" refers to the state where the angle formed by two straight lines is greater than 80° and less than 100°, and therefore also includes the state where the angle is greater than 85° and less than 95°.

[0037] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0038] Figure 1 This is a schematic diagram showing the position of the printed circuit board entering the vacuum platform. (Example) Figure 1As shown, the alignment mechanism includes multiple alignment rods 2 and multiple sliding rails 21 disposed on the vacuum platform 1. The sliding rails 21 can extend along the first direction X. The multiple alignment rods 2 are disposed on both sides of the vacuum platform 1 along the first direction X. The alignment rods 2 can move along the sliding rails 21 to clamp or loosen the edge of the printed circuit board 10, thereby limiting the position of the printed circuit board 10 in the first direction X. The vacuum platform 1 is provided with multiple adsorption holes 11, through which the printed circuit board 10 can be adsorbed onto the vacuum platform 1. A stop bar 3 can be provided on one side of the vacuum platform 1 along the second direction Y, which can limit the position of the printed circuit board 10 in the second direction Y. The alignment mechanism provided at the vacuum platform 1 can assist in fixing the position of the printed circuit board 10, so that the printed circuit board 10 can be smoothly adsorbed onto the vacuum platform 1. The second direction Y can intersect with the first direction X, for example, the second direction Y can be perpendicular to the first direction X.

[0039] Figure 2 This is a schematic diagram illustrating how an existing alignment mechanism defines the position of a printed circuit board. (Combined with...) Figure 1 and Figure 2 As shown, the printed circuit board 10 moves into the vacuum platform 1 along the second direction Y, and stops moving after contacting the stop bar 3, thus fully entering the vacuum platform 1. Subsequently, the alignment bar 2 can move from the end of the vacuum platform 1 along the sliding track 21 towards the printed circuit board 10, and contacts both ends of the printed circuit board 10 along the first direction X, thus confining the printed circuit board 10 to a suitable position on the vacuum platform 1. Then, the alignment bar 2 can move towards the adsorption holes 11 in a direction perpendicular to the vacuum platform 1. During or after the alignment bar 2 descends, it can vacuum-adsorb the printed circuit board 10 through the multiple adsorption holes 11, adsorbing the printed circuit board 10 onto the vacuum platform 1, facilitating subsequent processing of the printed circuit board 10.

[0040] Figure 3 for Figure 1 The existing straightening mechanism has a side view structural diagram along the AA direction. (See diagram below.) Figure 3As shown, the alignment mechanism also includes an alignment rod bracket 201 and a connecting part 202. The alignment rod 2 can be connected to the alignment rod bracket 201 via the connecting part 202. The alignment rod bracket 201 can extend in a direction perpendicular to the vacuum platform 1. The connecting part 202 can be in a zigzag shape, with one end connected to the alignment rod bracket 201 and the other end connected to the alignment rod 2. This ensures that the distance between the alignment rods 2 located on both sides of the vacuum platform 1 is greater than the distance between the corresponding alignment rod brackets 201 within the plane of the vacuum platform 1. The alignment rod bracket 201 can move horizontally along the sliding track 21, causing the alignment rod 2 to move closer to or further away from the center of the vacuum platform 1, thereby adjusting the distance between the alignment rod 2 and the printed circuit board 10. The alignment rod bracket 201 can also move in a direction perpendicular to the vacuum platform 1, causing the alignment rod 2 to rise or fall.

[0041] Figure 4 for Figure 2 A sectional view along the BB direction. (e.g.) Figure 4 As shown, during the rapid heating and cooling process, the edges of the printed circuit board 10 are prone to warping under internal stress. Figure 4 The warpage height h represents the distance between the highest point of the warped edge of the printed circuit board 10 and the non-warped surface, reflecting the degree of edge warpage of the printed circuit board 10. Figure 4 The mid-edge warpage length L represents the distance between the warped edge of the printed circuit board 10 and the edge of the adjacent flat surface. Figure 4 The illustration takes the example of two edges of the printed circuit board 10 having the same degree of warping. When the warping is small, for example, the warping height h is less than 3 mm, the suction force from the suction holes 11 can overcome the edge warping of the printed circuit board 10, allowing the warped edges of the printed circuit board 10 to adhere to the vacuum platform 1. However, when the warping is large, for example, the warping height h is greater than or equal to 3 mm, the suction force from the suction holes 11 cannot overcome the edge warping of the printed circuit board 10. Figure 4 As shown, the center of the printed circuit board 10 is adsorbed onto the vacuum platform 1, while the edges of the printed circuit board 10 cannot be attached to the vacuum platform 1. Figure 4 In the cases shown, errors will occur in the processing of the printed circuit board 10, affecting the production process of the printed circuit board 10, and may even lead to the scrapping of the printed circuit board 10.

[0042] In some technologies, to address edge warping of the printed circuit board 10, a carrier and a cover layer are added to the top and bottom sides of the printed circuit board 10 during production. These carriers and cover layers help overcome edge warping. However, the carriers and cover layers need to be manufactured along with the printed circuit board 10. This method not only requires pre-preparation of the carriers and cover layers, increasing material costs, but also adds the steps of attaching and removing the carriers and cover layers, significantly increasing the production cost of the printed circuit board 10 and enhancing the complexity of the manufacturing process.

[0043] This utility model embodiment provides a correction mechanism, including:

[0044] Multiple sliding tracks are distributed on opposite sides of the vacuum platform and extend in a direction from the edge of the vacuum platform toward the center of the vacuum platform;

[0045] Multiple centering rod supports are arranged in pairs with the sliding rail, and are configured to move along the extension direction of the sliding rail and in a direction perpendicular to the vacuum platform;

[0046] Multiple aligning rods are connected to the aligning rod bracket and are configured to limit the position of the printed circuit board located on the vacuum platform under the action of the aligning rod bracket.

[0047] At least two pressure plates are disposed on opposite sides of the vacuum platform and connected to the aligning rod, and are configured to press or release the edge of the printed circuit board located on the vacuum platform during the vertical movement of the aligning rod.

[0048] The alignment mechanism provided in this embodiment of the invention uses pressure plates connected to the alignment rod on opposite sides of a vacuum platform. As the alignment rod moves vertically, the pressure plates press or release the edges of the printed circuit board, ensuring that even with significant edge warping, the printed circuit board can be fully attached to the vacuum platform. This helps guarantee the smooth operation of the printed circuit board production process. No additional materials or production steps are required, significantly reducing the cost of the printed circuit board.

[0049] Figure 5 This is a top view of the alignment mechanism in an exemplary embodiment of the present invention, illustrating the case where the printed circuit board 10 is not in the vacuum platform 1, and only a portion of the vacuum platform 1 is shown. Figure 5As shown, the alignment mechanism includes multiple sliding tracks 21 distributed on opposite sides of the vacuum platform 1, the multiple sliding tracks 21 extending from the edge of the vacuum platform 1 toward the center of the vacuum platform 1; multiple alignment rod supports 201, arranged in pairs with the sliding tracks 21, configured to move along the extension direction of the sliding tracks 21 and in a direction perpendicular to the vacuum platform 1; multiple alignment rods 2, connected to the alignment rod supports 201, configured to limit the printed circuit board 10 located on the vacuum platform 1 under the drive of the alignment rod supports 201; at least two pressure plates 4, arranged on opposite sides of the vacuum platform 1 and connected to the alignment rods 2, configured to press or release the edge of the printed circuit board 10 located on the vacuum platform 1 during the vertical movement of the alignment rods 2.

[0050] like Figure 5As shown, the vacuum platform 1 includes a first edge and a second edge disposed opposite to each other along a first direction X, and a third edge and a fourth edge disposed along a second direction Y. A plurality of sliding tracks 21 may include a plurality of first sliding tracks 210 located at the first edge of the vacuum platform 1, and a plurality of second sliding tracks 220 located at the second edge of the vacuum platform 1. The first sliding tracks 210 and the second sliding tracks 220 may extend along the first direction X. The plurality of first sliding tracks 210 and the plurality of second sliding tracks 220 may be symmetrically arranged. A plurality of alignment rod supports 201 may include a plurality of first alignment rod supports 231 located at the first edge of the vacuum platform 1, and a plurality of second alignment rod supports 232 located at the second edge of the vacuum platform 1. The plurality of first alignment rod supports 231 are arranged in pairs with the plurality of first sliding tracks 210, and the plurality of second alignment rod supports 232 are arranged in pairs with the plurality of second sliding tracks 220. The plurality of first alignment rod supports 231 and the plurality of second alignment rod supports 232 may extend in a direction perpendicular to the vacuum platform 1. The plurality of aligning rods 2 may include a plurality of first aligning rods 230 located at the first edge of the vacuum platform 1 and a plurality of second aligning rods 240 located at the second edge of the vacuum platform 1. The plurality of first aligning rods 230 may be connected to a plurality of first aligning rod supports 231. The first aligning rods 230 may move along a first direction X and along a direction perpendicular to the vacuum platform 1 under the drive of the first aligning rod supports 231. The plurality of second aligning rods 240 may be connected to a plurality of second aligning rod supports 232. The plurality of second aligning rods 240 may move along the first direction X and along a direction perpendicular to the vacuum platform 1 under the drive of the second aligning rod supports 232. At least two pressure plates 4 may include a first pressure plate 41 located at the first edge of the vacuum platform 1 and a second pressure plate 42 located at the second edge of the vacuum platform 1. The first pressure plate 41 may be interconnected with the plurality of first aligning rods 230, and the second pressure plate 42 may be interconnected with the plurality of second aligning rods 240. The first pressure plate 41 can move with the movement of multiple first alignment rods 230, and the second pressure plate 42 can move with the movement of multiple second alignment rods 240. The first pressure plate 41 and the second pressure plate 42 can press or release the printed circuit board 10 located on the vacuum platform 1.

[0051] In an exemplary implementation, such as Figure 5As shown, the first pressure plate 41 connected to the multiple first alignment rods 230 can be an integral structure, and the second pressure plate 42 connected to the multiple second alignment rods 240 can be an integral structure. This design allows the first pressure plate 41 or the second pressure plate 42 to press against the entire side of the printed circuit board 10, ensuring a good pressing effect. In other embodiments, the first pressure plate 41 connected to the multiple first alignment rods 230 may include multiple first sub-boards (not shown), each first sub-board connected to one or more first alignment rods 230. These multiple first sub-boards are disconnected from each other, making the first pressure plate 41 a multi-segment structure. This design allows pressure to be applied to specific locations on the printed circuit board 10. The second pressure plate 42 may also be configured to include multiple second sub-boards, each second sub-board connected to one or more second alignment rods 240. The multiple second sub-boards may be arranged axially symmetrically with the multiple first sub-boards, allowing for uniform force distribution on the two sides of the printed circuit board 10. The structure of the first pressure plate 41 and the second pressure plate 42 can be configured as needed, and this utility model does not impose any limitations on this.

[0052] In an exemplary implementation, such as Figure 5 As shown, at least two first sliding tracks 210 can be provided on the first edge of the vacuum platform 1, and the at least two first sliding tracks 210 can be evenly distributed along the first edge. At least two second sliding tracks 220 can be provided on the second edge of the vacuum platform 1, and the at least two second sliding tracks 220 can be evenly distributed along the second edge. The number and distribution of the first sliding tracks 210 and the second sliding tracks 220 can be set as needed, and this utility model does not impose any limitations on this.

[0053] like Figure 5 As shown, the first alignment rod bracket 231 can be connected to four first alignment rods 230, which are evenly distributed along the first edge to make the pressure provided by the first pressure plate 41 more uniform at different positions. The second alignment rod bracket 232 can be connected to four second alignment rods 240, which are evenly distributed along the second edge to make the pressure provided by the second pressure plate 42 more uniform at different positions. The number and distribution of the first alignment rods 230 and the second alignment rods 240 can be set as needed, and this utility model does not impose any limitations on this.

[0054] like Figure 5 As shown, the alignment mechanism may further include a first connecting frame 251 and a second connecting frame 252. The first connecting frame 251 may extend along the second direction Y and is configured to connect a plurality of first alignment rods 230 to a plurality of first alignment rod supports 231, so that the plurality of first alignment rods 230 move synchronously. The second connecting frame 252 may extend along the second direction Y and is configured to connect a plurality of second alignment rods 240 to a plurality of second alignment rod supports 232, so that the plurality of second alignment rods 240 move synchronously.

[0055] like Figure 5 As shown, the alignment mechanism may further include a first motor 61 and a second motor 62 mounted on the vacuum platform 1. The first motor 61 is electrically connected to a plurality of first alignment rod supports 231 and is configured to drive the first alignment rod supports 231 to move. The second motor 62 is electrically connected to a plurality of second alignment rod supports 232 and is configured to drive the second alignment rod supports 232 to move. The positions of the first motor 61 and the second motor 62 can be set as needed, and this utility model does not impose any limitations on this.

[0056] Figure 6 In an exemplary embodiment Figure 5 The corrector mechanism is shown in a side view along the CC direction; some labels are omitted. For example... Figure 6 As shown, the correction mechanism also includes a cylinder and a cylinder bracket. The correction rod 2 can be connected to the correction rod bracket 201 via the cylinder and cylinder bracket. The cylinder 5 is configured to drive the correction rod 2 to move in a direction perpendicular to the vacuum platform 1, thereby adjusting the force applied by the pressure plate 4 to the printed circuit board 10. The correction rod bracket 201 can be located within the sliding rail 21 and extends in a direction perpendicular to the vacuum platform 1. The correction rod bracket 201 can move within the sliding rail 21 along... Figure 6 The horizontal double-arrow movement causes the alignment rod 2 to move in a direction parallel to the vacuum platform 1, which can adjust the size of the pressure plate 4 covering the edge of the printed circuit board 10. The alignment rod bracket 201 can move within the sliding track 21. Figure 6 The vertical double-arrow motion causes the calibrator 2 to move in a direction perpendicular to the vacuum platform 1.

[0057] In an exemplary implementation, such as Figure 6As shown, the end of the first alignment rod 230 near the vacuum platform 1 can be connected to the first cylinder 51, which is mounted on the first cylinder bracket 61 and connected to the first alignment rod bracket 231. The first pressure plate 41 can be connected to the end of the first alignment rod 230 away from the vacuum platform 1. After the first alignment rod bracket 231 moves along the extension direction perpendicular to the first sliding track 210 and drives the first alignment rod 230 to descend, the first cylinder 51 can drive the first alignment rod 230 to descend further towards the vacuum platform 1, thereby adjusting the force applied by the first pressure plate 41 to the printed circuit board 10. The end of the second alignment rod 240 near the vacuum platform 1 can be connected to the second cylinder 52, which is mounted on the second cylinder bracket 62 and connected to the second alignment rod bracket 232. The second pressure plate 42 can be connected to the end of the second alignment rod 240 away from the vacuum platform 1. After the second alignment rod bracket 232 moves along the extension direction perpendicular to the second sliding rail 220 and drives the second alignment rod 240 to descend, the second cylinder 52 can drive the second alignment rod 240 to descend further towards the vacuum platform 1, thereby adjusting the force applied by the second pressure plate 42 to the printed circuit board 10. The first cylinder 51 and the second cylinder 52 can control the first pressure plate 41 and the second pressure plate 42 respectively, thereby applying an appropriate force to each warped edge when the two sides of the printed circuit board 10 have different degrees of warping.

[0058] In an exemplary embodiment, the correction mechanism may further include a detection device (not shown) and a control device (not shown). The detection device can detect the edge warp length L and the degree of edge warp of each edge of the current printed circuit board 10. For example, it can detect the edge warp height h of the current printed circuit board 10 to represent the degree of edge warp. The control device can control the operation of the correction rod bracket 201 and the cylinder 5 corresponding to each edge according to the data detected by the detection device. By controlling the operation of the correction rod bracket 201, the size of the pressure plate 4 covering the edge of the printed circuit board 10 is adjusted. By controlling the operation of the cylinder 5, the force applied by the pressure plate 4 to the printed circuit board 10 is adjusted. For example, the control device can directly control the correction rod bracket 201 to adjust to the corresponding coverage size according to the edge warp length L detected by the detection device, based on a pre-set correspondence between the edge warp length L of the printed circuit board 10 and the coverage size of the pressure plate 4 covering the edge of the printed circuit board 10. The control device can also pre-store the correspondence between the edge warp degree of the printed circuit board 10 and the required applied force, and can directly control the cylinder 5 to apply the corresponding force according to the edge warp degree detected by the detection device. By adjusting the distance and force between the pressure plate 4 and the process edge, targeted adjustments can be made to the printed circuit board 10 with different edge warpage lengths L and different degrees of warpage.

[0059] In an exemplary embodiment, the pressure plate 4 and the straightening rod 2 can be detachably connected to facilitate replacement and maintenance.

[0060] Figure 7 This is a top view of the correction mechanism in another exemplary embodiment, illustrating the state in which the pressure plate 4 presses against the printed circuit board 10. Figure 7 and Figure 5 The difference lies in the fact that the corrective lever 2 and the sliding rail 21 are arranged in pairs, and the position of the stop lever 3 is also shown. The rest of the structure can be referred to the above. Figure 5 The description will not be repeated here.

[0061] like Figure 7 As shown, multiple first alignment rods 230 can be correspondingly arranged with multiple first sliding tracks 210, and the first alignment rods 230 can move along the first direction X within the first sliding track 210. Multiple second alignment rods 240 can be correspondingly arranged with multiple second sliding tracks 220, and the second alignment rods 240 can move along the first direction X within the second sliding track 220. The number and distribution of the sliding tracks 21 and alignment rods 2 can be set as needed, and this utility model does not impose any limitations in this regard.

[0062] This invention also provides a vacuum device, including a vacuum platform and a calibration mechanism as described above. This vacuum device can be used to produce printed circuit boards, such as Mini-LED PCBs, and this invention does not limit its application to this purpose.

[0063] In an exemplary embodiment, the vacuum platform is provided with a plurality of adsorption holes, which are configured to adsorb printed circuit boards located on the vacuum platform. The plurality of adsorption holes are located on the side of the sliding track of the correction mechanism near the center of the vacuum platform.

[0064] In an exemplary embodiment, the system further includes a sensing device and at least one stop; the vacuum platform also includes a third edge and a fourth edge disposed opposite each other along a second direction, the second direction intersecting the first direction; the printed circuit board enters the vacuum platform from the third edge side along the second direction, the at least one stop is disposed on the fourth edge side of the vacuum platform, and the sensing device is configured to sense whether the printed circuit board is in contact with the stop.

[0065] Combination Figure 7As shown, the third edge of the vacuum platform 1 can be the inlet side of the vacuum platform 1, and the printed circuit board 10 can enter the vacuum platform 1 from the third edge side along the second direction. A stop bar 3 can be provided on the fourth edge side of the vacuum platform 1. The stop bar 3 can be electrically connected to a sensing device (not shown). The sensing device can be, for example, a sensor, which can sense that the printed circuit board 10 is in contact with the stop bar 3, thereby determining that the printed circuit board 10 has completely entered the vacuum platform 1, which facilitates the subsequent control of the alignment mechanism.

[0066] In an exemplary embodiment, an inlet roller is also included, disposed on the side of the vacuum platform away from the stop bar; the printed circuit board enters the vacuum platform from the third edge after passing through the inlet roller. The inlet roller facilitates the entry of the printed circuit board into the vacuum platform.

[0067] Although the embodiments disclosed in this utility model are as described above, the content described is only for the purpose of facilitating understanding of this utility model and is not intended to limit this utility model. Any person skilled in the art to which this utility model pertains may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this utility model, but the patent protection scope of this utility model shall still be defined by the appended claims.

Claims

1. A correction mechanism, characterized in that, include: Multiple sliding tracks are distributed on opposite sides of the vacuum platform and extend in a direction from the edge of the vacuum platform toward the center of the vacuum platform; Multiple centering rod supports are arranged in pairs with the sliding rail, and are configured to move along the extension direction of the sliding rail and in a direction perpendicular to the vacuum platform; Multiple aligning rods are connected to the aligning rod bracket and are configured to limit the position of the printed circuit board located on the vacuum platform under the action of the aligning rod bracket. At least two pressure plates are disposed on opposite sides of the vacuum platform and connected to the aligning rod, and are configured to press or release the edge of the printed circuit board located on the vacuum platform during the vertical movement of the aligning rod.

2. The correction mechanism according to claim 1, characterized in that, The vacuum platform includes a first edge and a second edge disposed opposite to each other along a first direction: The plurality of sliding tracks includes a plurality of first sliding tracks located at the first edge and a plurality of second sliding tracks located at the second edge; The plurality of aligning rod supports includes a plurality of first aligning rod supports located at the first edge and a plurality of second aligning rod supports located at the second edge; the first aligning rod supports are arranged in pairs with the first sliding rail, and the second aligning rod supports are arranged in pairs with the second sliding rail; the first aligning rod supports and the second aligning rod supports extend in a direction perpendicular to the vacuum platform; The plurality of alignment rods includes a plurality of first alignment rods located at the first edge and a plurality of second alignment rods located at the second edge; the plurality of first alignment rods are connected to the plurality of first alignment rod supports and are configured to move under the drive of the plurality of first alignment rod supports; the plurality of second alignment rods are connected to the plurality of second alignment rod supports and are configured to move under the drive of the plurality of second alignment rod supports. The at least two pressure plates include a first pressure plate located at the first edge and a second pressure plate located at the second edge, the first pressure plate being connected to the plurality of first alignment rods, and the second pressure plate being connected to the plurality of second alignment rods.

3. The correction mechanism according to claim 2, characterized in that, It also includes a first connecting frame and a second connecting frame. The first connecting frame is configured to connect the plurality of first alignment rods to the plurality of first alignment rod supports, so that the plurality of first alignment rods move synchronously. The second connecting frame is configured to connect the plurality of second alignment rods to the plurality of second alignment rod supports, so that the plurality of second alignment rods move synchronously.

4. The correction mechanism according to claim 2, characterized in that, It also includes multiple first cylinders, multiple first cylinder supports, multiple second cylinders, and multiple second cylinder supports; The first alignment rod is connected to the first cylinder at one end near the vacuum platform. The first cylinder is connected to the first cylinder bracket, and the first cylinder bracket is connected to the first alignment rod bracket. The first pressure plate is connected to the end of the first alignment rod away from the vacuum platform. The first cylinder is configured to drive the first alignment rod to move in a direction perpendicular to the vacuum platform to adjust the force applied by the first pressure plate to the printed circuit board. The end of the second alignment rod near the vacuum platform is connected to the second cylinder, the second cylinder is connected to the second cylinder bracket, and the second cylinder bracket is connected to the second alignment rod bracket; the second pressure plate is connected to the end of the second alignment rod away from the vacuum platform; the second cylinder is configured to drive the second alignment rod to move in a direction perpendicular to the vacuum platform to adjust the force applied by the second pressure plate to the printed circuit board.

5. The correction mechanism according to claim 4, characterized in that, It also includes a detection device and a control device; the detection device is configured to detect the edge warpage length and the degree of edge warpage of each edge of the printed circuit board. The control device is configured to control the movement of the first alignment rod bracket and the second alignment rod bracket according to the edge warping length, so as to adjust the size of the first pressure plate and the second pressure plate covering the edge of the printed circuit board respectively; it is also configured to control the operation of the first cylinder and the second cylinder according to the edge warping degree, so as to adjust the force applied by the first pressure plate and the second pressure plate to the printed circuit board respectively.

6. The correction mechanism according to claim 5, characterized in that, The control device is configured to control the movement of the first alignment rod bracket and the second alignment rod bracket respectively according to a pre-set first correspondence relationship after receiving the edge warping length; the first correspondence relationship is the correspondence between the edge warping length and the size of the first pressure plate and the second pressure plate covering the edge of the printed circuit board. The control device is further configured to control the first cylinder and the second cylinder to work respectively according to a pre-set second correspondence after receiving the degree of edge warping; the second correspondence is the correspondence between the degree of edge warping and the force applied to the printed circuit board by the first pressure plate and the second pressure plate.

7. The correction mechanism according to claim 2, characterized in that, The plurality of first sliding tracks and the plurality of second sliding tracks extend along the first direction.

8. The correction mechanism according to claim 2, characterized in that, The first pressure plate connected to the plurality of first alignment rods is an integral structure, and the second pressure plate connected to the plurality of second alignment rods is an integral structure.

9. The correction mechanism according to claim 2, characterized in that, The first pressure plate includes a plurality of first sub-plates, each of which is connected to one or more first alignment rods; the second pressure plate includes a plurality of second sub-plates, each of which is connected to one or more second alignment rods.

10. The correction mechanism according to claim 2, characterized in that, It also includes a first motor and a second motor; the first motor is electrically connected to the first alignment rod bracket and is configured to drive the first alignment rod bracket to move; the second motor is electrically connected to the second alignment rod bracket and is configured to drive the second alignment rod bracket to move.

11. The correction mechanism according to claim 2, characterized in that, The first pressure plate and the plurality of first alignment rods are detachably connected, and the second pressure plate and the plurality of second alignment rods are detachably connected.

12. A vacuum device, characterized in that, It includes a vacuum platform and a correction mechanism as described in any one of claims 1-11.

13. The vacuum device according to claim 12, characterized in that, The vacuum platform is provided with multiple adsorption holes, which are configured to adsorb printed circuit boards located on the vacuum platform; the multiple adsorption holes are located on the side of the sliding track of the correction mechanism near the center of the vacuum platform.

14. The vacuum device according to claim 13, characterized in that, It also includes a sensing device and at least one stop bar; the vacuum platform further includes a third edge and a fourth edge disposed opposite to each other along a second direction, the second direction and the first direction intersecting. The printed circuit board enters the vacuum platform from the third edge side along the second direction, the at least one stop is disposed on the fourth edge side of the vacuum platform, and the sensing device is configured to sense whether the printed circuit board is in contact with the stop.

15. The vacuum device according to claim 14, characterized in that, It also includes an inlet roller; the inlet roller is located on the side of the vacuum platform away from the stop bar; the printed circuit board enters the vacuum platform from the third edge after passing through the inlet roller.

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