A baking device for circuit board processing

Abstract

This application provides a baking apparatus for circuit board processing, relating to the technical field of circuit board processing equipment. The baking apparatus includes: two sets of slides; a translation drive connected to the slides; two sets of trays, each set containing multiple layers; a spacing adjustment mechanism mounted on the slides; and a transfer box for holding circuit boards detached from the trays. After baking, the oven door is opened, and the transfer box is placed inside the oven. The spacing adjustment mechanism then adjusts the spacing between adjacent trays, ensuring the multiple trays are tightly stacked together. At this point, the spacing between adjacent circuit boards is minimized. The translation drive then drives the two sets of slides to move in opposite directions, thereby pulling the trays away from the circuit boards and allowing multiple circuit boards to be stacked and placed in the transfer box. This improves the ease of removing circuit boards and thus increases circuit board production efficiency.

Description

Technical Field

[0001] This application relates to the field of circuit board processing equipment technology, and in particular to a baking apparatus for circuit board processing. Background Technology

[0002] During the production and processing of circuit boards, the circuit board substrate may absorb moisture from the air during storage or processing, or it may contain solvents that have not been completely evaporated. Therefore, a baking process is required to remove moisture and volatiles from the circuit board substrate and its attached layers, and to optimize the physical and chemical properties of the materials to avoid quality defects such as board bursting, welding defects, abnormal solder resist layers, and unstable dimensions in subsequent processes.

[0003] Currently, commonly used baking equipment for circuit boards includes hot air circulating ovens and infrared ovens. For example, utility model patent CN222147915U discloses a printed circuit board baking device, including a base plate, a heating chamber on top of the base plate, the bottom of the heating chamber fixedly connected to the top of the base plate, an assembly on top of the heating chamber, the bottom of the assembly fixedly connected to the top of the heating chamber, a heating element inside the heating chamber, a sliding groove on the inner wall of the assembly, a sliding plate inside the groove, the groove and the sliding plate being slidably connected, a storage slot on top of the sliding plate, and heating holes on both the top and bottom of the sliding plate. By manually placing the circuit board into the storage slot, pushing the sliding plate through the groove into the assembly, manually operating the handle to close the cabinet door, manually operating the switch, and manually operating the rotating disc to control the temperature inside the assembly, the circuit board is baked.

[0004] However, the above-mentioned printed circuit board baking equipment has the following shortcomings: In order to increase the capacity of the circuit boards inside the machine and to avoid the stacking of circuit boards affecting the baking effect, the slide plate used to place the circuit boards has multiple layers. As a result, when the circuit boards are removed from the machine after baking, the staff needs to manually remove the circuit boards one by one from the multiple slide plates. Therefore, the operation is cumbersome and takes a lot of time, which is not conducive to improving the efficiency of circuit board production. Utility Model Content

[0005] The purpose of this application is to provide a baking apparatus for circuit board processing, which solves the problem that in related technologies, when baking circuit boards are removed from the machine after baking, workers need to manually remove each circuit board from the multi-layer slide plate one by one, which is cumbersome, time-consuming, and detrimental to improving circuit board production efficiency.

[0006] The baking apparatus for circuit board processing provided in this application adopts the following technical solution: A baking apparatus for circuit board processing includes a baking oven, the baking oven comprising a body and a door, the door being openable and closable on the body, and further comprising: The slide block is provided in two sets, and the two sets of slide blocks are symmetrically slidably disposed in the box body; A translation drive unit is connected to the slide block and is used to drive the two sets of slide blocks to move horizontally in opposite directions or in opposite directions. The tray has two sets, each set corresponding to one of the two sets of slides. Each set of trays has multiple layers, and the multiple layers of trays slide vertically on the slides. The tray is used to place circuit boards. A spacing adjustment mechanism is provided on the slide block and is used to adjust the spacing between adjacent layer trays; A transfer box for holding circuit boards that have been detached from the tray.

[0007] Optionally, it also includes a synchronization plate, the longitudinal section of which is U-shaped. The open end of the U-shaped synchronization plate is fixedly connected to the support plate. The synchronization plate is slidably sleeved on the outside of another support plate in the same layer of the two sets.

[0008] Optionally, the slide block is provided with a vertical column, the tray is slidably sleeved on the outside of the vertical column, and the tray is provided with a limiting block for limiting the circuit board. The limiting block is L-shaped and can fit with the four corners of the circuit board.

[0009] Optionally, the spacing adjustment mechanism includes a locking component and a lifting rod fixed vertically to the support plate. The lower end of the lifting rod is provided with a horizontally extending hook protrusion. Between the support plates of adjacent layers, the hook protrusion on the upper support plate can hook and connect with the lower support plate. The vertical column is provided with a base plate. The hook protrusion on the lowest support plate can hook and connect with the base plate. The slide is provided with a bracket. The locking component is provided on the bracket. After the uppermost support plate moves vertically to the upper stop point, it can be fixedly connected to the bracket through the locking component.

[0010] Optionally, the locking assembly includes a wedge block and an elastic element. The bracket has a pin hole, the wedge block is slidably mounted on the bracket, the uppermost support plate has a push-pull plate, the push-pull plate has a pin that can be inserted into the pin hole, the pin has a locking groove, the elastic element acts on the wedge block, and can push the wedge block to engage with the locking groove when the locking groove is aligned with the wedge block, the wedge block has a handle for pulling the wedge block to separate from the locking groove.

[0011] Optionally, the translation drive includes a screw and a drive motor. The inner bottom wall of the housing is provided with a guide rail, the slide is slidably mounted on the guide rail, the slide is provided with a screw hole, the screw is rotatably mounted on the housing and screwed to the slide through the screw hole, and the drive motor is fixed on the housing and connected to the screw.

[0012] Optionally, a pusher is also included. The transfer box includes a box body and a movable plate. The top of the box body has an open structure. The movable plate is slidably disposed in the box body along the vertical direction and is used to support the circuit board detached from the pallet. The pusher is used to push the movable plate along the vertical direction.

[0013] Optionally, a limiting seat is provided on the inner bottom wall of the box, and the limiting seat is provided with a transverse groove. The box can be slidably pushed into the transverse groove. The end of the transverse groove of the limiting seat is provided with a limiting plate for limiting the sliding stroke of the box in the transverse groove. The limiting seat is provided with a vertical groove that communicates with the transverse groove. The shape of the vertical groove corresponds to that of the movable plate. The upper surface of the limiting seat is provided with a positioning plate for limiting the circuit board. The positioning plate is located around the vertical groove.

[0014] In summary, this application includes at least the following beneficial technical effects: When baking circuit boards, the oven door is opened, the circuit boards are placed on trays, and then the oven door is closed for baking. At this time, the spacing between adjacent trays is at its maximum, which facilitates the circulation of hot air inside the oven and improves the baking effect. After baking, the oven door is opened, and a transfer box is placed inside the oven. The spacing between adjacent trays is then adjusted by a spacing adjustment mechanism, allowing multiple trays to be tightly stacked together. At this time, the spacing between adjacent circuit boards is at its minimum, facilitating the storage of multiple circuit boards in the transfer box. Next, a translational drive unit drives two sets of slides to move horizontally in opposite directions, thereby pulling the trays away from under the circuit boards, allowing multiple circuit boards to be stacked and placed in the transfer box. The transfer box and circuit boards are then removed from the oven, thus improving the ease of circuit board removal and increasing circuit board production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the baking apparatus for circuit board processing in an embodiment of this application; Figure 2 This is a first-view cross-sectional view of the baking apparatus for circuit board processing in an embodiment of this application. Figure 3 for Figure 2 A magnified view of part A1 in the diagram; Figure 4 This is a schematic diagram of the structure in the embodiments of this application, omitting parts such as the baking oven and circuit board; Figure 5 for Figure 4 A magnified view of part C in the middle; Figure 6 for Figure 2 A magnified view of part A2 in the middle; Figure 7 This is a cross-sectional view from a second perspective of the baking apparatus for circuit board processing in an embodiment of this application. Figure 8 for Figure 7 A magnified view of part B in the middle section; Figure 9 This is a cross-sectional view of the embodiments of this application, omitting parts such as the baking oven and circuit board; Figure 10 This is an exploded view of the transfer box and the movable plate in the embodiments of this application.

[0016] Explanation of reference numerals in the attached figures: 10. Baking oven; 11. Oven body; 111. Guide rail; 12. Oven door; 20. Slide block; 21. Vertical column; 22. Base plate; 23. Support; 231. Pin hole; 232. Slide groove; 24. Screw hole; 30. Translation drive component; 31. Screw; 32. Drive motor; 40. Support plate; 41. Limit block; 42. Lifting rod; 43. Hook boss; 44. Clearance groove; 45. Push-pull plate; 46. Pin; 461. Locking groove; 50. Locking assembly; 51. Wedge block; 511. Pull rod; 512. Handle head; 52. Spring; 60. Transfer box; 61. Box body; 611. Clearance groove; 62. Movable plate; 621. Guide plate; 63. Handle; 70. Electric push rod; 71. Telescopic rod; 72. Push plate; 80. Synchronization board; 90. Limiting seat; 91. Horizontal groove; 92. Limiting plate; 93. Vertical groove; 94. Positioning plate; 100. Circuit board. Detailed Implementation

[0017] The following is in conjunction with the appendix Figure 1 - Appendix Figure 10 This application will be described in further detail below.

[0018] This application discloses a baking apparatus for circuit board processing.

[0019] A baking apparatus for circuit board processing includes a baking oven 10, a slide 20, a translation drive 30, a tray 40, a spacing adjustment mechanism, a transfer box 60, a synchronization plate 80, and a pusher.

[0020] Reference Figures 1 to 5The baking oven 10 includes a body 11 and a door 12. The door 12 is closable and is mounted on the body 11. Two sets of slides 20 are provided. Guide rails 111 are provided on the inner bottom wall of the body 11. The two sets of slides 20 are symmetrically slidably mounted on the guide rails 111 on the inner bottom wall of the body 11. A translation drive 30 is connected to the slides 20 and is used to drive the two sets of slides 20 to move horizontally in opposite directions or in opposite directions. More specifically, the translation drive 30 includes a screw 31 and a drive motor 32. The slides 20 are provided with screw holes 24. The screw 31 is rotatably mounted on the body 11 and screwed to the slides 20 through the screw holes 24. The drive motor 32 is fixed on the body 11 and connected to the screw 31.

[0021] The tray 40 is provided in two sets, and the two sets of trays 40 correspond one-to-one with the two sets of slides 20. Each set of trays 40 has multiple layers. The slides 20 are provided with vertical posts 21. The multiple layers of trays 40 are slidably sleeved on the outside of the vertical posts 21 on the slides 20. The tray 40 is used to place the circuit board 100. The tray 40 is provided with limiting blocks 41 for limiting the circuit board 100. The limiting blocks 41 are L-shaped and can fit with the four corners of the circuit board 100.

[0022] The longitudinal section of the synchronization plate 80 is U-shaped. The open end of the U-shaped synchronization plate 80 is fixedly connected to the support plate 40. The synchronization plate 80 is slidably sleeved on the outside of the other support plate 40 in the same layer of the two sets.

[0023] Reference Figures 6 to 8 The spacing adjustment mechanism is mounted on the slide 20 and is used to adjust the spacing between adjacent trays 40. In an optional embodiment, the specific structure of the spacing adjustment mechanism is as follows: The spacing adjustment mechanism includes a locking component 50 and a lifting rod 42 fixed vertically on the tray 40. The lower end of the lifting rod 42 is provided with a horizontally extending hook protrusion 43. Between adjacent trays 40, the hook protrusion 43 on the upper tray 40 can be hooked and connected to the lower tray 40. A base plate 22 is provided on the vertical column 21. The hook protrusion 43 on the lowest tray 40 can be hooked and connected to the base plate 22. The tray 40 is provided with a clearance groove 44 for avoiding the lifting rod 42 on the upper tray 40.

[0024] A bracket 23 is provided on the slide 20, and a locking component 50 is provided on the bracket 23. After the uppermost support plate 40 moves vertically to the upper stop point, it can be fixedly connected to the bracket 23 through the locking component 50. More specifically, the locking component 50 includes a wedge block 51 and an elastic element. The bracket 23 is provided with a pin hole 231 and a slide groove 232 that passes through the pin hole 231. The wedge block 51 is slidably disposed in the slide groove 232 on the bracket 23. The uppermost support plate 40 is provided with a push-pull plate 45. The push-pull plate 45 is provided with a pin 46 that can be inserted into the pin hole 231. The pin 46 is provided with a locking groove 461. The elastic element acts on the wedge block 51 and can push the wedge block 51 to engage with the locking groove 461 when the locking groove 461 is aligned with the wedge block 51. The elastic element can be a spring 52, and the two ends of the spring 52 abut against the end faces of the wedge block 51 and the slide groove 232, respectively.

[0025] The wedge block 51 is provided with a handle for pulling the wedge block 51 apart from the locking groove 461 and for preventing the wedge block 51 from disengaging from the slide groove 232. More specifically, the handle includes a pull rod 511 fixed on the wedge block 51 and sliding through the slide groove 232 and the bracket 23. The end of the pull rod 511 is provided with a handle head 512 for preventing the wedge block 51 from disengaging from the slide groove 232. A spring 52 is sleeved on the outside of the pull rod 511.

[0026] Reference Figure 3 , Figure 9 and Figure 10 The transfer box 60 is used to place the circuit board 100 that has detached from the tray 40. More specifically, the transfer box 60 includes a box body 61 and a movable plate 62. The top of the box body 61 is an open structure, and a handle 63 is provided on the side wall of the box body 61. The movable plate 62 is slidably disposed in the box body 61 along the vertical direction. Guide plates 621 are provided at the four corners of the movable plate 62 and slide in contact with the inner side wall of the box body 61. The cross-section of the guide plate 621 is L-shaped. The movable plate 62 is used to support the circuit board 100 that has detached from the tray 40.

[0027] A limiting seat 90 is provided on the inner bottom wall of the housing 11. A transverse groove 91 is provided on the limiting seat 90. The housing 61 can slide into the transverse groove 91. A limiting plate 92 is provided at the end of the transverse groove 91 of the limiting seat 90 to limit the sliding stroke of the housing 61 in the transverse groove 91. A vertical groove 93 is provided on the limiting seat 90 that communicates with the transverse groove 91. The shape of the vertical groove 93 corresponds to that of the movable plate 62. A positioning plate 94 is provided on the upper surface of the limiting seat 90 to limit the circuit board 100. There are four positioning plates 94, which are located around the vertical groove 93.

[0028] The pusher is used to push the movable plate 62 vertically. The pusher can be an electric push rod 70. More specifically, the electric push rod 70 is fixed on the bottom wall of the box 11. The telescopic rod 71 of the electric push rod 70 is provided with a push plate 72. The push plate 72 can contact the bottom surface of the movable plate 62. The bottom wall of the box 61 is provided with a relief groove 611 for avoiding the push plate 72.

[0029] The implementation principle of the baking device for circuit board processing in this embodiment is as follows: When it is necessary to bake the circuit board 100, the door 12 of the baking oven 10 is opened, and then the circuit board 100 is placed on the tray 40. One circuit board 100 is placed on each tray 40, and the four corners of the circuit board 100 are respectively engaged with the limiting blocks 41 on the two opposite trays 40 of the same layer, forming a shape as shown in the figure. Figure 1 In the state shown, the door 12 is then closed to bake the circuit board 100. At this time, the distance between the adjacent trays 40 is at its maximum, which is conducive to the circulation of hot air inside the box 11 and improves the baking effect.

[0030] After baking, open the oven door 12, then slide the box body 61 into the horizontal groove 91 until the box body 61 abuts against the limiting plate 92. Then, control the extension rod 71 of the electric push rod 70 to extend upward, and push the movable plate 62 upward through the push plate 72, pushing the movable plate 62 to the vertical groove 93. Then, pull the wedge block 51 with the handle head 512 to separate it from the locking groove 461. At this time, under the action of gravity, the multi-layer trays 40 all slide down along the vertical column 21, so that the multi-layer trays 40 are tightly stacked together. At this time, multiple circuit boards 100 are located between the four positioning plates 94, and the spacing between adjacent layers of circuit boards 100 is minimal, so as to facilitate the storage of multiple circuit boards 100 in the transfer box 60. During the sliding process of the trays 40, the synchronization plate 80 restricts the sliding of each pair of opposite trays 40 in the same layer of the two sets. Next, the drive motor 32 drives the screw 31 to rotate, which in turn drives the two sets of slides 20 to move in opposite directions, thereby pulling the tray 40 away from under the circuit board 100 and stacking multiple circuit boards 100 on the movable plate 62. Then, the telescopic rod 71 of the electric push rod 70 is controlled to retract downward, causing the movable plate 62 and the circuit board 100 to retract into the box 61. The transfer box 60 and the circuit board 100 are then removed from the baking oven 10, thereby improving the ease of removing the circuit board 100 and thus increasing the production efficiency of the circuit board 100.

[0031] When the baked circuit board 100 is taken out and the next batch of circuit boards 100 needs to be baked, the two sets of slides 20 are driven to move horizontally in opposite directions by the translation drive 30. Then, the uppermost tray 40 is pushed upward by the push-pull plate 45. When the uppermost tray 40 rises, the lower trays 40 are hooked and lifted layer by layer by the lifting rod 42 and the hook boss 43 until the pin 46 is inserted into the pin hole 231 and the wedge block 51 is engaged with the locking groove 461, fixing the uppermost tray 40 to the bracket 23. At this time, the distance between the adjacent trays 40 is at its maximum. Then, the circuit board 100 is placed on the tray 40 to bake the next batch of circuit boards 100.

[0032] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A baking apparatus for circuit board processing, comprising a baking oven (10), the baking oven (10) comprising a body (11) and a door (12), the door (12) being openable and closable on the body (11), characterized in that, Also includes: The slide (20) is provided in two sets, and the two sets of slides (20) are symmetrically slidably disposed in the box (11); Translation drive (30), which is connected to the slide (20) and is used to drive the two sets of slides (20) to move horizontally in opposite directions or in opposite directions; The tray (40) is provided in two sets, and the two sets of trays (40) correspond one-to-one with the two sets of slides (20). Each set of trays (40) is provided with multiple layers, and the multiple layers of trays (40) are slidably disposed on the slides (20) in the vertical direction. The tray (40) is used to place the circuit board (100). A spacing adjustment mechanism is provided on the slide (20) and is used to adjust the spacing between adjacent layer trays (40); Transfer box (60) is used to hold circuit boards (100) that have been detached from the tray (40).

2. The baking apparatus for circuit board processing according to claim 1, characterized in that, It also includes a synchronization plate (80), the longitudinal section of which is U-shaped. The open end of the U-shaped synchronization plate (80) is fixedly connected to the support plate (40). The synchronization plate (80) is slidably sleeved on the outside of another support plate (40) on the same layer in the two sets.

3. The baking apparatus for circuit board processing according to claim 1, characterized in that, The slide (20) is provided with a vertical column (21), and the tray (40) is slidably sleeved on the outside of the vertical column (21). The tray (40) is provided with a limiting block (41) for limiting the circuit board (100). The limiting block (41) is L-shaped and can fit with the four corners of the circuit board (100).

4. The baking apparatus for circuit board processing according to claim 3, characterized in that, The spacing adjustment mechanism includes a locking component (50) and a lifting rod (42) fixed vertically on the support plate (40). The lower end of the lifting rod (42) is provided with a horizontally extending hook protrusion (43). Between the support plates (40) of adjacent layers, the hook protrusion (43) on the upper support plate (40) can hook and connect with the lower support plate (40). The vertical column (21) is provided with a base plate (22). The hook protrusion (43) on the lowest support plate (40) can hook and connect with the base plate (22). The slide (20) is provided with a bracket (23). The locking component (50) is provided on the bracket (23). After the uppermost support plate (40) moves vertically to the upper stop point, it can be fixedly connected with the bracket (23) through the locking component (50).

5. A baking apparatus for circuit board processing according to claim 4, characterized in that, The locking assembly (50) includes a wedge block (51) and an elastic element. The bracket (23) is provided with a pin hole (231). The wedge block (51) is slidably disposed on the bracket (23). The uppermost support plate (40) is provided with a push-pull plate (45). The push-pull plate (45) is provided with a pin (46) that can be inserted into the pin hole (231). The pin (46) is provided with a locking groove (461). The elastic element acts on the wedge block (51) and can push the wedge block (51) to engage with the locking groove (461) when the locking groove (461) is aligned with the wedge block (51). The wedge block (51) is provided with a handle for pulling the wedge block (51) and the locking groove (461) apart.

6. The baking apparatus for circuit board processing according to claim 1, characterized in that, The translation drive component (30) includes a screw (31) and a drive motor (32). The inner bottom wall of the housing (11) is provided with a guide rail (111). The slide (20) is slidably disposed on the guide rail (111). The slide (20) is provided with a screw hole (24). The screw (31) is rotatably disposed on the housing (11) and screwed to the slide (20) through the screw hole (24). The drive motor (32) is fixed on the housing (11) and connected to the screw (31).

7. A baking apparatus for circuit board processing according to claim 1, characterized in that, It also includes a pusher. The transfer box (60) includes a box body (61) and a movable plate (62). The top of the box body (61) is an open structure. The movable plate (62) is slidably disposed in the box body (61) in the vertical direction and is used to support the circuit board (100) that has detached from the pallet (40). The pusher is used to push the movable plate (62) in the vertical direction.

8. A baking apparatus for circuit board processing according to claim 7, characterized in that, The inner bottom wall of the box (11) is provided with a limiting seat (90), the limiting seat (90) is provided with a transverse groove (91), the box (61) can slide into the transverse groove (91), the end of the transverse groove (91) of the limiting seat (90) is provided with a limiting plate (92) for limiting the sliding stroke of the box (61) in the transverse groove (91), the limiting seat (90) is provided with a vertical groove (93) that communicates with the transverse groove (91), the vertical groove (93) corresponds to the shape of the movable plate (62), the upper surface of the limiting seat (90) is provided with a positioning plate (94) for limiting the circuit board (100), the positioning plate (94) is located around the vertical groove (93).

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