Circuit board exposure equipment

Abstract

The utility model discloses circuit board exposure equipment which comprises an equipment body, a sliding mechanism, a bearing piece and a turnover mechanism, the equipment body is provided with an exposure cavity, the exposure cavity is arranged along a first direction opening, and an exposure mechanism is arranged in the exposure cavity; the sliding mechanism is connected with the equipment body, and the output end of the sliding mechanism does linear motion along a first direction and enters and exits the exposure cavity; the bearing part is provided with a mounting groove for placing a circuit board, and the bearing part is rotationally connected with the output end of the sliding mechanism; and the output end of the turnover mechanism drives the bearing piece to rotate outside the exposure cavity. According to the utility model, the problems of low processing efficiency and high working intensity of workers of the existing exposure equipment can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit board production, and in particular relates to circuit board exposure equipment. Background Art

[0002] PCB, or printed circuit board, is an important electronic component that supports and electrically connects electronic components. Because it is manufactured using electronic printing technology, it is called a "printed" circuit board.

[0003] During circuit board processing, an exposure device is required to expose the printed circuit board. However, after the existing exposure device exposes one side of the circuit board, it needs to be moved out, removed, flipped, fixed, and pushed in so that the exposure device can expose the other side of the printed circuit board to complete the exposure production of the printed circuit board, resulting in low processing efficiency and increased workload for workers. Utility Model Content

[0004] The utility model aims to provide a circuit board exposure device to solve the technical problems of low processing efficiency and high work intensity of workers in the prior art.

[0005] The technical solutions adopted to solve the above technical problems are:

[0006] The utility model discloses a circuit board exposure device, comprising:

[0007] An equipment body, wherein the equipment body is provided with an exposure chamber, the exposure chamber is opened along a first direction, and an exposure mechanism is provided in the exposure chamber;

[0008] a sliding mechanism, the sliding mechanism being connected to the device body, wherein an output end of the sliding mechanism moves linearly along a first direction and enters and exits the exposure chamber;

[0009] A carrier, the carrier being provided with a mounting groove for placing a circuit board, the carrier being rotatably connected to an output end of the sliding mechanism;

[0010] A turning mechanism, wherein an output end of the turning mechanism drives the carrier to rotate outside the exposure chamber.

[0011] The present invention has at least the following beneficial effects: an operator places a circuit board into the mounting slot, a sliding mechanism drives the carrier to move into the exposure chamber, and the exposure mechanism exposes the side of the circuit board facing it. After exposure, the sliding mechanism drives the carrier through the opening and out of the exposure chamber. The flipping mechanism flips the carrier, flipping the exposed side of the circuit board upside down with the unexposed side. The sliding mechanism again drives the carrier to slide into the exposure chamber, and the exposure mechanism exposes the circuit board, thereby achieving exposure of opposite sides of the circuit board. The flipping mechanism directly drives the carrier to flip, eliminating the need for the operator to manually remove the circuit board, flip it, and then secure it in the mounting slot. This reduces the operator's workload, shortens the time required to flip each circuit board, and improves the processing efficiency of the circuit board exposure equipment.

[0012] As a further improvement of the above technical solution, the exposure chamber is connected to a first opening and a second opening, the circuit board is placed on the carrier extending out of the first opening, and the flipping mechanism flips the carrier extending out of the second opening.

[0013] As a further improvement of the above technical solution, the installation groove extends in the up and down directions and is provided with corresponding first and second notches, and the circuit board is taken into and placed in the installation groove through the first or second notch facing upwards.

[0014] As a further improvement of the above technical solution, the flipping mechanism includes a driving motor and a rotating shaft, the driving motor is connected to the output end of the sliding mechanism, the output end of the driving motor is transmission-connected to the rotating shaft, and the rotating shaft is passed through and connected to the supporting member.

[0015] As a further improvement of the above technical solution, the flipping mechanism further includes a limit switch electrically connected to the drive motor.

[0016] As a further improvement of the above technical solution, the output end of the sliding mechanism is connected to a movable plate, the supporting member is rotatably connected to the top of the movable plate, and pressure sensors are provided on both end surfaces of the supporting member in the up and down directions, and the two pressure sensors are electrically connected to the drive motor.

[0017] As a further improvement of the above technical solution, the sliding mechanism includes a moving motor and a screw, the output end of the moving motor is transmission-connected to the screw, the screw extends in the front-back direction and is rotationally connected to the two ends of the equipment body, and the moving plate is threadedly sleeved on the screw.

[0018] As a further improvement of the above technical solution, the carrier is movably connected with a plurality of first clamping members and a plurality of second clamping members for clamping circuit boards, and the plurality of first clamping members and the plurality of second clamping members are symmetrically arranged in the up and down directions.

[0019] As a further improvement of the above technical solution, the supporting member is provided with two groups of connecting grooves along the up and down directions, the connecting grooves extend horizontally and connect the installation groove and the outer side surface of the supporting member, and multiple first clamping members and multiple second clamping members slide respectively in the two groups of connecting grooves, and one end thereof extends out of the installation groove.

[0020] As a further improvement of the above technical solution, the first clamping member and the second clamping member are respectively interference fit with the connecting groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the overall structure of the circuit board exposure device provided by an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the circuit board exposure device provided by an embodiment of the present utility model from another perspective;

[0024] Figure 3 It is a cross-sectional view of the carrier of the circuit board exposure equipment provided by an embodiment of the present utility model moving to the exposure chamber.

[0025] The following are marked in the accompanying drawings:

[0026] 100, device body; 110, exposure chamber; 120, exposure mechanism; 130, first opening; 140, second opening;

[0027] 200, sliding mechanism; 210, moving motor; 220, lead screw;

[0028] 300, bearing member; 310, mounting slot; 321, first slot; 322, second slot; 330, connecting slot;

[0029] 400, flip mechanism; 410, limit switch;

[0030] 500, mobile board;

[0031] 610, first clamping member; 620, second clamping member;

[0032] 700. Circuit board. DETAILED DESCRIPTION

[0033] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0035] In the description of this utility model, if the word "several" or "several" is used, it means one or more, and "more" means two or more. "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of the words "first," "second," and "third" is only for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, or implicitly indicating the number of the indicated technical features, or implicitly indicating the order of the indicated technical features.

[0036] It should be noted that in the drawings, the X direction is from the rear side to the front side of the circuit board exposure device; the Y direction is from the left side to the right side of the circuit board exposure device; and the Z direction is from the bottom side to the top side of the circuit board exposure device.

[0037] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0038] Reference Figures 1 to 3 , several embodiments of the circuit board exposure device of the present invention are given below.

[0039] like Figures 1 to 3 As shown, the circuit board 700 exposure device of the embodiment of the present invention includes a device body 100 , a sliding mechanism 200 , a carrier 300 and a flipping mechanism 400 .

[0040] It is understood that the device body 100 is hollow and has an exposure chamber 110, and an exposure mechanism 120 is provided in the exposure chamber 110. The exposure mechanism 120 is located at the top of the exposure chamber 110 and faces downward to expose the circuit board 700 input into the exposure chamber 110. Figure 3The exposure chamber 110 is opened along a first direction, and the circuit board 700 can be input into or output from the exposure chamber 110 through the opening. In this embodiment, the first direction is the front-to-back direction, that is, the circuit board 700 can be input into or output from the exposure chamber 110 along the front-to-back direction.

[0041] It can be understood that the sliding mechanism 200 is connected to the device body 100 , and the output end of the sliding mechanism 200 moves linearly along the first direction, that is, the output end of the sliding mechanism 200 can move back and forth in and out of the exposure chamber 110 .

[0042] It is understood that the carrier 300 is provided with a mounting groove 310, and the circuit board 700 is placed in the mounting groove 310. Figure 1 and Figure 2 shown.

[0043] It can be understood that the supporting member 300 is rotatably connected to the output end of the sliding mechanism 200, and the output end of the sliding mechanism 200 can drive the supporting member 300 to move forward and backward and in and out of the exposure chamber 110, so as to facilitate the placement or removal of the circuit board 700 outside the exposure chamber 110.

[0044] It is understandable that the carrier 300 can rotate relative to the output end of the sliding mechanism 200 to flip the carrier 300 and the circuit board 700 180 degrees, thereby flipping the unexposed surface of the circuit board 700 to face the exposure mechanism 120 .

[0045] As will be appreciated, the output end of the flip mechanism 400 is connected to the carrier 300. The flip mechanism 400 automatically rotates the carrier 300 relative to the output end of the sliding mechanism 200, eliminating the need for manual flipping by the operator, reducing workload and improving processing efficiency. The carrier 300 is flipped outside the exposure chamber 110, utilizing the external space. This eliminates the need to increase the height of the exposure chamber 110, thus avoiding the need to expand the volume of the apparatus body 100 and increase the cost of the circuit board 700 exposure apparatus.

[0046] With this arrangement, the sliding mechanism 200 moves the carrier 300 outside the exposure chamber 110, the operator places the circuit board 700 in the mounting groove 310, the sliding mechanism 200 is started, and the output end of the sliding mechanism 200 drives the carrier 300 to move back and forth into the exposure chamber 110, the exposure machine is started, and the upward surface of the circuit board 700 is exposed. After the exposure is completed, the sliding mechanism 200 and the flipping mechanism 400 are started successively, and the carrier 300 is moved out of the exposure chamber 110 and flipped 180 degrees so that the unexposed surface of the circuit board 700 is set facing upward, the sliding mechanism 200 continues to start, driving the carrier 300 and the circuit board 700 thereon to move for exposure. After the exposure of the circuit board 700 is completed, the sliding mechanism 200 is started, and the carrier 300 and the circuit board 700 are moved out of the exposure chamber 110. The operator takes out the exposed circuit board 700 and puts in a new circuit board 700 to be exposed.

[0047] It is understood that the exposure chamber 110 is connected to a first opening 130 and a second opening 140 along the front-to-back direction, respectively. The first opening 130 is located in front of the second opening 140. When the carrier 300 is driven by the sliding mechanism 200 and extends forward from the first opening 130, the operator takes out the exposed circuit board 700 and puts in the circuit board 700 to be exposed outside the first opening 130. At this time, the carrier 300 is in the pick-and-place position, as shown in FIG. Figure 1 When the supporting member 300 is driven by the sliding mechanism 200 and extends backwards out of the second opening 140, the flipping mechanism 400 flips the extending supporting member 300 out of the second opening 140. At this time, the supporting member 300 is in a flipped position, as shown in FIG. Figure 2 shown.

[0048] With this arrangement, the placement position and the flipping position of the circuit board 700 are spaced apart from each other. When the operator stands at the first opening 130, the operator can take out and put in a new circuit board 700 when the circuit board 700 extends out of the first opening 130. The operator does not need to identify whether the carrier 300 is in the placement state or the flipping state at this time, thereby preventing the operator from accidentally taking out a circuit board 700 that has not been exposed from the carrier 300 to be flipped.

[0049] In some embodiments, the circuit board 700 can only be taken in and out from one end of the mounting slot 310. Therefore, after the flipping mechanism 400 flips the carrier 300 and the circuit board 700 and completes the exposure, the flipping mechanism 400 still needs to flip the carrier 300 and the circuit board 700 therein again before the operator can remove the circuit board 700 from the mounting slot 310.

[0050] In this regard, the mounting groove 310 is extended in the vertical direction, so that the upper end and the lower end of the carrier 300 are respectively provided with a first notch 321 and a second notch 322, and the first notch 321 and the second notch 322 correspond to each other up and down. The circuit board 700 can be taken into and placed in the mounting groove 310 through the first notch 321 or the second notch 322 located at the top. Figure 3 The light output by the exposure mechanism 120 passes through the first slot 321 or the second slot 322 to expose the circuit board 700 in the mounting slot 310 .

[0051] With such an arrangement, the carrier 300 before and after flipping can both take and place the circuit board 700 from the upward first slot 321 or the second slot 322, so that the circuit board 700 can be directly driven by the sliding mechanism 200 to pass through the first opening 130 after the exposure is completed, without the need for the flipping mechanism 400 to repeatedly flip, thereby reducing the number of flipping times of the flipping mechanism 400, extending the service life of the flipping mechanism 400, and reducing the maintenance cost of the circuit board 700 exposure equipment.

[0052] As will be understood, the tilting mechanism 400 includes a drive motor and a rotating shaft. The drive motor is connected to the output end of the sliding mechanism 200 and is fixed relative to the output end of the sliding mechanism 200. The output end of the drive motor is in driving connection with one end of the rotating shaft to drive the rotating shaft to rotate about its own axis. The rotating shaft is passed through and fixedly connected to the carrier 300.

[0053] In this embodiment, the rotating shaft extends in the left-right direction and is connected to the front end or rear end of the carrier 300, so that the carrier 300 rotates upward with the rotating shaft at the front end or rear end as the rotating axis, thereby realizing the flipping of the upper end surface and the lower end surface of the carrier 300, and further realizing the flipping and replacement of the exposed board surface and the unexposed board surface of the circuit board 700.

[0054] It is understandable that, when projected in the left-right direction, the edge of one end of the supporting member 300 through which the rotating shaft is passed is arranged in an arc with the rotating shaft as the center, so as to avoid interference between the edge of the rotating supporting member 300 and the output end of the sliding mechanism 200.

[0055] In some embodiments, the flipping mechanism 400 and the sliding mechanism 200 are interlocked. Specifically, when the sliding mechanism 200 drives the carrier 300 to slide out of the second opening 140 and the sliding mechanism 200 closes, the flipping mechanism 400 automatically activates. When the drive motor completes the rotation of the carrier 300 and closes, the sliding mechanism 200 automatically activates and drives the flipped carrier 300 back into the exposure chamber 110. This reduces the need for manual operator control, shortens the activation interval between the flipping mechanism 400 and the sliding mechanism 200, and improves the processing efficiency of the circuit board 700 exposure equipment.

[0056] In this embodiment, the flip mechanism 400 further includes a limit switch 410, such as Figure 1 and Figure 2 As shown, the limit switch 410 is electrically connected to the drive motor, and the drive motor is controlled by the limit switch 410. Specifically, the limit switch 410 is connected to the device body 100 and is located outside the second opening 140. When the sliding mechanism 200 drives the carrier 300 to move to the limit switch 410, the drive motor is activated, flipping the carrier 300 and the circuit board 700 therein.

[0057] With such an arrangement, the flipping mechanism 400 can flip the carrier 300 while the sliding mechanism 200 is still running, further shortening the time required for the carrier 300 to move out of the exposure chamber 110 for flipping, reducing the working time required for exposing each circuit board 700, and improving the processing efficiency of the circuit board 700 exposure equipment.

[0058] Furthermore, the sliding mechanism 200 is also equipped with a plurality of limit switches 410. The plurality of limit switches 410 control the closing of the sliding mechanism 200, so that the carrier 300 is respectively positioned in the loading position, the flipping position, and the exposure position. The exposure position is the position where the carrier 300 is located in the exposure chamber 110 for exposure.

[0059] In some embodiments, the flipping angle of the carrier 300 can be determined according to the rotation speed of the driving motor and the set working time, so that the carrier 300 is driven by the driving motor to rotate 180 degrees, thereby achieving precise flipping of the upper and lower surfaces of the circuit board 700.

[0060] In other embodiments, the supporting member 300 or the rotating shaft is connected to an angle sensor, which is electrically connected to a driving motor, so that the circuit board 700 can be accurately flipped 180 degrees.

[0061] In this embodiment, the output end of the sliding mechanism 200 is connected to the movable plate 500, and the supporting member 300 is rotatably connected to the top of the movable plate 500, that is, the driving motor is connected to the movable plate 500, and the upper end surface of the movable plate 500 is horizontally arranged. The lower end surface of the supporting member 300 before and after flipping is connected to the upper end surface of the movable plate 500, so that the supporting member 300 and the circuit board 700 therein are horizontally arranged, and the circuit board 700 can be better exposed.

[0062] It is understood that pressure sensors are provided on opposite sides of the carrier 300 in the vertical direction, and both pressure sensors are electrically connected to the drive motor. Specifically, one pressure sensor is positioned along the edge of the first notch 321 of the carrier 300, and the other pressure sensor is positioned along the edge of the second notch 322 of the carrier 300. When the carrier 300 is flipped over to connect with the movable plate 500, the pressure sensor located on the lower end surface of the carrier 300 connects with the movable plate 500. The pressure sensor sends a signal to the drive motor, which shuts down upon receiving the signal, thereby causing the carrier 300 to rotate precisely 180 degrees and connect horizontally with the movable plate 500.

[0063] In some embodiments, the sliding mechanism 200 may be a conveyor belt, and the movable plate 500 is connected to the conveyor belt, or the movable plate 500 is the belt body of the conveyor belt.

[0064] In this embodiment, the sliding mechanism 200 is a moving motor 210 and a lead screw 220 connected in a transmission manner. Figure 2 As shown, the movable motor 210 is connected to the device body 100, and the screw 220 extends in the front-to-back direction. The front and rear ends of the screw 220 are rotatably connected to the device body 100 through bearings, so that the screw 220 can rotate around itself as the axis of rotation. The movable plate 500 is provided with a threaded hole, and the screw 220 is passed through the threaded hole.

[0065] With such arrangement, when the moving motor 210 is started, the output end of the moving motor 210 drives the lead screw 220 to rotate along the rotating shaft extending forward and backward, and the rotating lead screw 220 forces the threaded moving plate 500 to move forward and backward, thereby realizing the forward and backward movement of the supporting member 300.

[0066] In some embodiments, the sliding mechanism 200 also includes a guide shaft, which is parallel to the screw 220 and fixedly connected to the equipment body 100. The guide shaft passes through the movable plate 500, and the guide shaft ensures that the movable plate 500 moves back and forth to prevent the movable plate 500 from being driven to rotate by the screw 220.

[0067] In this embodiment, the moving motor 210 is a dual-axis motor, and two lead screws 220 are provided and respectively threaded through the left and right ends of the moving plate 500. The two output ends of the dual-axis motor are respectively connected to the two lead screws 220 for transmission, so that the moving plate 500 can move forward and backward smoothly and accurately. Figure 2 shown.

[0068] It is understandable that the carrier 300 is movably connected to a plurality of first clamping members 610 and a plurality of second clamping members 620, such as Figure 1 As shown, the plurality of first clamping members 610 and the plurality of second clamping members 620 are symmetrically arranged in the up-down direction, and the circuit board 700 is located between the plurality of first clamping members 610 and the plurality of second clamping members 620 .

[0069] It can be understood that the first clamping member 610 and the second clamping member 620 are respectively disposed along the edge of the first notch 321 and the edge of the second notch 322 .

[0070] With this arrangement, taking the example of the first clamping members 610 being positioned above the second clamping members 620, when inserting a circuit board 700, the operator opens the multiple first clamping members 610 located above and then inserts the circuit board 700. At this point, the multiple second clamping members 620 located below can securely support the circuit board 700. The multiple first clamping members 610 are then closed, and the circuit board 700 is stably clamped by the multiple first clamping members 610 and the multiple second clamping members 620. When the carrier 300 is flipped by the flipping mechanism 400, the circuit board 700 remains securely clamped within the mounting slot 310.

[0071] In some embodiments, the first clamping member 610 and the second clamping member 620 can be movably connected to the carrier 300 via bolts. Specifically, the end surface of the carrier 300 having the first notch 321 and the second notch 322 is provided with an inwardly concave movable groove, which is connected to a screw hole. A bolt passing through the first clamping member 610 or the second clamping member 620 is threadedly connected to the screw hole. By tightening the bolts, the first clamping member 610 and the second clamping member 620 are respectively fixed relative to the carrier 300. By loosening the bolts, the multiple first clamping members 610 or the multiple second clamping members 620 located above are rotated into the movable groove, allowing an operator to remove and place the circuit board 700.

[0072] In other embodiments, the first clamping member 610 and the second clamping member 620 may be movably connected to the supporting member 300 by means of snap connection or magnetic attraction.

[0073] In this embodiment, the carrier 300 is provided with two sets of connecting grooves 330 along the vertical direction. Figure 1 As shown, the connecting groove 330 extends in the horizontal direction and its opposite ends are respectively connected to the outer side of the mounting groove 310 and the carrier 300, multiple first clamping members 610 slide in one group of connecting grooves 330, and one end of the multiple first clamping members extends into the mounting groove 310; multiple second clamping members slide in another group of connecting grooves 330, and one end of the multiple second clamping members extends into the mounting groove 310, thereby firmly clamping the circuit board 700.

[0074] It is understandable that, taking the example of the first clamping member being located above the second clamping member, the operator can move one end of the multiple first clamping members extending out of the installation slot 310 into the connection slot 330 by pulling or pushing out, thereby taking out or putting in the circuit board 700.

[0075] It is understandable that, since a rotation shaft is provided through one end of the supporting member 300 in the front-to-back direction, the connection slot 330 can be provided at the left end, the right end, and the end away from the rotation shaft of the supporting member 300 .

[0076] In this embodiment, two connection slots 330 are provided per set, one at the left and one at the right end of the carrier 300. The connection slots 330 extend in the left-right direction. Two first clamping members 610 and two second clamping members 620 are provided. The left first clamping member 610 and the second clamping member 620 are used to clamp the left end of the circuit board 700, while the right first clamping member 610 and the second clamping member 620 are used to clamp the right end of the circuit board 700, thereby firmly securing the circuit board 700 within the mounting slot 310.

[0077] In some embodiments, the first clamp 610 and the second clamp 620 can be fixed relative to the carrier 300 by means of bolts or other connection methods, but the bolts need to be tightened when taking and placing the circuit board 700, making the sliding of the first clamp 610 and the second clamp 620 more inconvenient.

[0078] In this embodiment, the first clamping member 610 and the second clamping member 620 are interference fit with the groove wall of the connecting groove 330, so that the first clamping member 610 and the second clamping member 620 are relatively fixed to the bearing member 300 in the absence of external force, with a simple structure and easy operation.

[0079] The above specifically describes the preferred embodiments of the present invention, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A circuit board exposure device, characterized in that: Includes: An equipment body, wherein the equipment body is provided with an exposure chamber, the exposure chamber is opened along a first direction, and an exposure mechanism is provided in the exposure chamber; a sliding mechanism, the sliding mechanism being connected to the device body, wherein an output end of the sliding mechanism moves linearly along a first direction and enters and exits the exposure chamber; A carrier, the carrier being provided with a mounting groove for placing a circuit board, the carrier being rotatably connected to an output end of the sliding mechanism; A turning mechanism, wherein an output end of the turning mechanism drives the carrier to rotate outside the exposure chamber.

2. The circuit board exposure device according to claim 1, characterized in that: The exposure chamber is connected with a first opening and a second opening. The circuit board is placed on the carrier extending out of the first opening, and the flip mechanism flips the carrier extending out of the second opening.

3. The circuit board exposure device according to claim 1, wherein: The mounting slot extends in an up-down direction and is provided with a corresponding first slot and a second slot. The circuit board is taken into and placed in the mounting slot through the first slot or the second slot facing upward.

4. The circuit board exposure device according to claim 1, wherein: The flip mechanism includes a drive motor and a rotating shaft. The drive motor is connected to the output end of the sliding mechanism. The output end of the drive motor is in transmission connection with the rotating shaft. The rotating shaft is passed through and connected to the supporting member.

5. The circuit board exposure device according to claim 4, characterized in that: The turnover mechanism further includes a limit switch electrically connected to the drive motor.

6. The circuit board exposure device according to claim 4, characterized in that: The output end of the sliding mechanism is connected to a movable plate, the supporting member is rotatably connected to the upper side of the movable plate, and pressure sensors are provided on both end surfaces of the supporting member in the up and down directions. The two pressure sensors are electrically connected to the driving motor.

7. The circuit board exposure device according to claim 6, characterized in that: The sliding mechanism includes a moving motor and a lead screw. The output end of the moving motor is transmission-connected to the lead screw. The lead screw extends in the front-back direction and is rotationally connected to the two ends of the equipment body. The moving plate is threadedly sleeved with the lead screw.

8. The circuit board exposure device according to claim 1, wherein: The carrier is movably connected with a plurality of first clamping members and a plurality of second clamping members for clamping circuit boards. The plurality of first clamping members and the plurality of second clamping members are symmetrically arranged along the up-down direction.

9. The circuit board exposure device according to claim 8, characterized in that: The supporting member is provided with two groups of connecting grooves along the up and down directions, the connecting grooves extend horizontally and connect the installation groove and the outer side surface of the supporting member, and the plurality of the first clamping members and the plurality of the second clamping members slide respectively in the two groups of connecting grooves, and one end thereof extends out of the installation groove.

10. The circuit board exposure device according to claim 9, characterized in that: The first clamping member and the second clamping member are respectively interference-fitted with the connecting groove.

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