A PCB board and baking equipment thereof

Abstract

The invention relates to a PCB board and a baking device thereof, belonging to the technical field of PCB board processing. A PCB board comprises a PCB board body, wherein the PCB board body comprises a bottom plate and a top plate, a plurality of middle plates are arranged between the bottom plate and the top plate, a plurality of conductive holes are opened in the middle of the plurality of middle plates, through holes are opened in four corners of the bottom plate, the top plate and the plurality of middle plates, a plurality of stepped holes concentric with the conductive holes are opened in the middle of the top plate, a plurality of copper pillars matched with the conductive holes and the stepped holes are fixedly arranged on the upper side of the bottom plate, and a PCB board baking device comprises a baking box, a plurality of hanging mechanisms are arranged on the inner top of the baking box, a partition is fixedly arranged vertically in the middle of the inner side of the baking box, a baking mechanism is arranged on the front side of the partition, and a cooling mechanism is arranged on the rear side of the partition. In the present invention, a plurality of PCB boards can be suspended by the hanging mechanism, the PCB boards can be baked without dead angles, and the baking effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of PCB board processing, and in particular relates to a PCB board and baking equipment thereof. Background Art

[0002] During the yellow light processing process, the PCB board needs to first pass through the horizontal line to clean the surface, and then pass through the photosensitive material on the printing equipment, and then the photosensitive material needs to be pre-dried through the baking equipment (oven). The baked PCB board needs to be completely cooled before it can be sent to the exposure machine for exposure, and finally it is washed through the horizontal line to complete the entire process of image transfer.

[0003] For example, in the Chinese invention patent with announcement number CN110582169B and titled as a baking device for PCB boards, the invention comprises a baking mechanism and a feeding mechanism and a discharging mechanism on both sides thereof, the baking mechanism is divided into two layers, the upper layer is a baking device, the baking device comprises a baking conveying device and a baking part cooperating with a loading frame, the lower layer is a circulating conveying device in the opposite direction of the baking conveying device, the baking conveying device cooperates with the feeding mechanism and the discharging mechanism through feeding manipulators on both sides, the circulating conveying device is docked with the feeding mechanism and the discharging mechanism through a circulating transfer device, and the loading frame is a frame body with no less than two layers. Although the above-mentioned prior art can design the baking device into two layers, with the two-layer conveying structure, the circulating operation of the loading frame can be realized, thereby improving the baking efficiency, but since the PCB board is placed in the loading frame and one side of the PCB board is in contact with the loading frame, only one side of the same PCB board can be baked during baking, which easily causes the PCB board to be baked unevenly, so a PCB board and a baking device thereof are now needed. Summary of the invention

[0004] The purpose of the present invention is to provide a PCB board and baking equipment with simple structure and reasonable design in order to solve the above problems.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] A PCB board comprises a PCB board body, wherein the PCB board body comprises a bottom plate and a top plate, a plurality of intermediate plates are arranged between the bottom plate and the top plate, a plurality of conductive holes are opened in the middle of the intermediate plates, through holes are opened in the four corners of the bottom plate, the top plate and the plurality of intermediate plates, a plurality of stepped holes concentric with the conductive holes are opened in the middle of the top plate, and a plurality of copper pillars cooperating with the conductive holes and the stepped holes are fixedly arranged on the upper side of the bottom plate.

[0007] A PCB board baking device comprises a baking oven, wherein a plurality of hanging mechanisms are arranged on the inner top of the baking oven, a partition is vertically fixedly arranged in the middle of the inner side of the baking oven, a baking mechanism is arranged on the front side of the partition, a cooling mechanism is arranged on the rear side of the partition, a driving mechanism for simultaneously driving a plurality of hanging mechanisms to pass through the baking mechanism and the cooling mechanism in sequence is arranged on the upper side of the baking oven, a loading mechanism and a unloading mechanism are arranged on one side of the baking oven, the loading mechanism is used to move the PCB board body onto the hanging mechanism, and the unloading mechanism is used to remove the PCB board body on the hanging mechanism.

[0008] As a further optimization scheme of the present invention, the suspension mechanism includes an annular guide rail fixedly arranged on the inner top, a guide bar is slidably arranged on the inner side of the annular guide rail, a transmission rack is fixedly arranged on the inner side of the guide bar, an annular groove is opened on the lower side of the annular guide rail, a plurality of connecting rods passing through the annular groove are fixedly arranged on the lower side of the guide bar, bearings are fixedly arranged on the lower sides of the plurality of connecting rods, rotating rods are rotatably arranged on the lower sides of the plurality of bearings, mounting seats are fixedly arranged on the lower ends of the plurality of rotating rods, branch rods are fixedly arranged on both sides of the plurality of mounting seats, hooks are arranged on the lower ends of the plurality of branch rods, a reset assembly is arranged between the hook and the branch rod, and self-rotation assemblies are arranged on the plurality of rotating rods.

[0009] As a further optimization scheme of the present invention, the driving mechanism includes a second servo motor fixedly arranged on the top of the baking oven, a driving gear meshing with a transmission rack is fixedly arranged on the output end of the second servo motor, a main synchronous wheel located at the top of the outer side of the baking oven is also fixedly arranged on the output end of the second servo motor, a synchronous belt is meshed on the outer side of the main synchronous wheel, a slave synchronous wheel is meshed on the other end of the synchronous belt, a rotating shaft that rotates and passes through the top plate of the baking oven is fixedly sleeved on the inner side of the slave synchronous wheel, a driven gear meshing with the transmission rack on the other side is fixedly arranged on the lower end of the rotating shaft, and transmission grooves that respectively cooperate with the driving gear and the driven gear are opened on the inner sides of both ends of the annular guide rail.

[0010] As a further optimization scheme of the present invention, the reset assembly includes a fixed shaft fixedly set at the lower end of the branch rod, a spiral spring is fixedly set on the outside of the fixed shaft, and a rotating sleeve is fixedly set on the other end of the spiral spring and is rotatably set on the outside of the fixed shaft and fixedly connected to the hook.

[0011] As a further optimization scheme of the present invention, the self-rotation component includes a self-rotation gear fixedly mounted on a rotating rod, a first rack meshing with the self-rotation gear is fixedly arranged on the front side of the top plate of the baking oven, and a second rack meshing with the self-rotation gear is fixedly arranged on the rear side of the top plate of the baking oven.

[0012] As a further optimization scheme of the present invention, the front side of the baking oven is sealed with a front sealed door, and the front sealed door is provided with a front observation window. The rear side of the baking oven is sealed with a rear sealed door, and the rear sealed door is provided with a rear observation window. The baking mechanism includes a heating base fixedly arranged on the front side of the partition, and a plurality of heating tubes are equidistantly arranged on the heating base.

[0013] As a further optimization scheme of the present invention, the cooling mechanism includes a main pipe fixedly arranged horizontally on the rear side of the partition, the upper side of the main pipe is fixedly connected to a plurality of branch pipes arranged vertically equidistantly, one side of the branch pipe is connected to a plurality of gas outlet nozzles, one side of the main pipe is connected to an air inlet pipe, and the top of the baking oven is provided with an exhaust hole located above the plurality of gas outlet nozzles.

[0014] As a further optimization scheme of the present invention, the loading mechanism includes a loading port opened on one side of the baking oven, a conveyor belt passing through the loading port is arranged at the bottom of the baking oven, one end of the conveyor belt is driven by a first servo motor, a first elastic belt and a second elastic belt are fixedly arranged on the outer surface of the conveyor belt, a gap is arranged between the first elastic belt and the second elastic belt, an elastic plate located between the gap is equidistantly fixed between the first elastic belt and the second elastic belt, and a PCB board body is arranged between the first elastic belt, the second elastic belt and two adjacent elastic plates.

[0015] As a further optimization scheme of the present invention, the feeding mechanism includes a feeding port opened on one side of the baking oven, and two insertion rods passing through the feeding port are arranged at the bottom of the baking oven, and one end of the two insertion rods is provided with a fixing plate fixedly connected to the bottom of the baking oven, and the upper side of the fixing plate is provided with a positioning groove cooperating with the insertion rod, and the upper side of the fixing plate is provided with a positioning buckle plate which fixes one end of the insertion rod to the inner side of the positioning groove by screws.

[0016] The beneficial effects of the present invention are:

[0017] 1. In the present invention, the second servo motor drives the active gear to rotate, so that the active gear is meshed with the transmission rack, and then drives the guide bar to slide on the inner side of the annular guide rail. During the sliding process of the guide bar, it will drive several connecting rods on the lower side of the guide bar to move together on the lower side of the annular guide rail. The lower end of the connecting rod is connected to the rotating rod through a bearing, and the outer side of the rotating rod is meshed with the first rack through the self-rotating gear. The lower end of the rotating rod hangs the PCB board body through the branch rod and the hook, and the several suspended PCB board bodies move with the guide bar. During the movement, they are baked by the heating tube, so that the photosensitive material is baked, thereby improving the product quality of the PCB board. When the guide bar drives the connecting rod and the rotating rod to move, the self-rotating gear on the rotating rod is meshed with the first rack, so that the rotating rod rotates, and finally the rotating rod can rotate while moving with the guide bar, and then the PCB board at the lower end of the rotating rod can rotate while moving, so that the PCB board suspended by the hook can be evenly heated, so that the PCB board is evenly baked, and the photosensitive material is prevented from being damaged by uneven heating, and the product quality of the PCB board is avoided.

[0018] 2. In the present invention, the conveyor belt is intermittently driven to rotate by the first servo motor, so that the first elastic belt and the second elastic belt on the upper side of the conveyor belt are intermittently conveyed, so that a plurality of PCB board bodies between the first elastic belt and the second elastic belt are conveyed in the gap. When the PCB board body is conveyed to one side of the suspension mechanism at the lower side of one end of the annular guide rail, since the suspension mechanism moves at one end, the two hooks can be inserted into the two through holes at the upper end of the PCB board body, and then the PCB board body is hooked. When the suspension mechanism continues to move, the lower end of the PCB board body is pulled out from between the first elastic belt and the second elastic belt, so that the PCB board body is suspended below the suspension mechanism, so that the PCB board body moves together with the suspension mechanism. By analogy, a plurality of PCB board bodies can be suspended on different suspension mechanisms respectively, so that the automatic loading of the PCB board body is completed, and the baking efficiency of the PCB board is improved.

[0019] 3. In the present invention, through the two insertion rods, when the hanging mechanism drives the PCB board body to move to the rear end of the baking oven, the two through holes at the lower end of the PCB board body can be respectively inserted into the two insertion rods. With the movement of the hanging mechanism, several PCB board bodies can be continuously inserted into the two insertion rods. When the hanging mechanism is away from the insertion rods, the insertion rod will pull the upper end of the PCB board body to drive the rotating sleeve at one end of the hook to rotate around the fixed shaft, and at the same time, the volute spring between the rotating sleeve and the fixed shaft will expand and contract, so that the two through holes at the upper end of the PCB board body are detached from the hook, and the two through holes at the lower end of the PCB board body can be inserted into the insertion rods. By analogy, several PCB board bodies can be continuously inserted into the insertion rods respectively, so as to complete the automatic unloading of the PCB board body and improve the overall baking efficiency of the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of a first internal overall structure of the present invention;

[0021] Figure 2 is a second internal overall structure schematic diagram of the present invention;

[0022] Figure 3 is a third internal overall structure schematic diagram of the present invention;

[0023] Figure 4 It is a front overall structural schematic diagram of the present invention;

[0024] Figure 5 It is a rear view overall structural schematic diagram of the present invention;

[0025] Figure 6 It is a schematic diagram of the first internal overall structure of the top plate of the baking oven of the present invention;

[0026] Figure 7 It is a schematic diagram of the overall structure of the second inner part of the top plate of the baking oven of the present invention;

[0027] Figure 8 The present invention Figure 2 Enlarged view of point A in the middle;

[0028] Fig. 9 The present invention Figure 3 Enlarged view of point B in the middle;

[0029] Fig.10 The present invention Figure 4 Enlarged view of point C in the middle;

[0030] Fig.11 The present invention Figure 4 Enlarged view of point D in the middle;

[0031] Fig.12 The present invention Figure 4 Enlarged view of point E in the middle;

[0032] Fig.13 The present invention Figure 6 Enlarged view of point F in the middle;

[0033] Fig.14 The present invention Figure 6 Enlarged view of point G in the middle;

[0034] Fig.15 The present invention Fig.14 Enlarged view of S in the middle;

[0035] Fig.16 The present invention Figure 7 Enlarged view of the M in the middle;

[0036] Fig.17The present invention Figure 7 Enlarged view of point N in the middle;

[0037] Fig.18 This is a schematic diagram of the overall structure of the PCB board body of the present invention;

[0038] Fig.19 It is a schematic diagram of the overall structure of the PCB board body of the present invention.

[0039] In the figure: 1. baking box; 2. hanging mechanism; 201. connecting rod; 202. bearing; 203. rotating rod; 204. first rack; 205. self-rotating gear; 206. mounting seat; 207. branch rod; 208. hook; 209. annular guide rail; 210. guide bar; 211. annular groove; 212. transmission rack; 213. second rack; 214. transmission groove; 215. rotating sleeve; 216. fixed shaft; 217. volute spring; 3. baking mechanism; 301. heating base; 302. heating tube; 4. driving mechanism; 401. second servo motor; 402. synchronous belt; 403. main synchronous wheel; 404. rotating shaft; 405. slave synchronous wheel; 406. driven gear; 407. driving gear; 5. feeding mechanism; 501, conveyor belt; 502, first servo motor; 503, first elastic belt; 504, second elastic belt; 505, elastic plate; 6, unloading mechanism; 601, fixing plate; 602, positioning groove; 603, insert rod; 604, positioning buckle plate; 7, unloading port; 8, loading port; 9, exhaust hole; 10, cooling mechanism; 1001, main pipe; 1002, branch pipe; 1003, air outlet nozzle; 1004, air inlet pipe; 11, partition; 12, front sealing door; 13, front observation window; 14, rear sealing door; 15, rear observation window; 16, PCB board body; 1601, bottom plate; 1602, top plate; 1603, middle plate; 1604, through hole; 1605, copper column; 1606, conductive hole; 1607, stepped hole. DETAILED DESCRIPTION

[0040] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0041] Example 1: Fig.18 , Fig.19As shown, a PCB board includes a PCB board body 16, the PCB board body 16 includes a bottom plate 1601 and a top plate 1602, a plurality of intermediate plates 1603 are arranged between the bottom plate 1601 and the top plate 1602, the present embodiment takes two intermediate plates 1603 as an example, the specific number can be flexibly adjusted according to the process, a plurality of conductive holes 1606 are opened in the middle of the two intermediate plates 1603, the present embodiment takes four conductive holes 1606 as an example, the four conductive holes 1606 are arranged in a square, the specific number can be flexibly adjusted according to the process, the bottom plate 1601, the top plate 1602 and the plurality of intermediate plates 1603 are all provided with through holes 1604 at four corners, that is, two through holes 1604 are opened at one end in the length direction of the PCB board body 16, and the other end in the length direction of the PCB board body 16 Two through holes 1604 are provided at one end, four stepped holes 1607 concentric with the conductive holes 1606 are provided in the middle of the top plate 1602, and four copper pillars 1605 cooperating with the conductive holes 1606 and the stepped holes 1607 are fixedly provided on the upper side of the bottom plate 1601. The copper pillars 1605 are convenient for conduction and compression deformation. The diameter of the copper pillars 1605 is consistent with the diameter of the conductive holes 1606, which is convenient for conducting the bottom plate 1601, the top plate 1602 and the two middle plates 1603. The upper surface of the copper pillars 1605 is higher than the upper surface of the stepped holes 1607, which is convenient for squeezing the excess copper pillars 1605 into the large circular holes of the stepped holes 1607 during the pressing process, so that the bottom plate 1601, the top plate 1602 and the two middle plates 1603 are connected as a whole to prevent cracking.

[0042] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Fig. 9 , Fig.13 , Fig.14 , Fig.15 , Fig.16 , Fig.17As shown, a PCB board baking device includes a baking oven 1, a front sealing door 12 is sealed on the front side of the baking oven 1, a front observation window 13 is arranged on the front sealing door 12, a rear sealing door 14 is sealed on the rear side of the baking oven 1, the front sealing door 12 and the rear sealing door 14 are both installed on the front and rear sides of the baking oven 1 by screws, a rear observation window 15 is arranged on the rear sealing door 14, the front observation window 13 and the rear sealing door 14 are both made of heat-insulating transparent materials, a plurality of hanging mechanisms 2 are arranged on the inner top of the baking oven 1, the hanging mechanisms 2 include an annular guide rail 209 fixedly arranged on the inner top, the annular guide rail 209 adopts a straight slot structure, which can increase The baking length of the large suspension mechanism 2 is increased, thereby increasing the baking time and improving the baking effect of the PCB board. A guide bar 210 is slidably arranged on the inner side of the annular guide rail 209, and a transmission rack 212 is fixedly arranged on the inner side of the guide bar 210. An annular groove 211 is opened on the lower side of the annular guide rail 209. The width of the annular groove 211 is smaller than the width of the annular guide rail 209, so that the lower side of the guide bar 210 can be supported by the lower side edge of the annular guide rail 209, so that the guide bar 210 can slide more smoothly on the inner side of the annular guide rail 209. A plurality of connecting rods 201 passing through the annular groove 211 are fixedly arranged on the lower side of the guide bar 210. The plurality of connecting rods 201 are fixedly arranged on the lower side of the guide bar 210. 01 is fixedly provided with a bearing 202 on the lower side, and a rotating rod 203 is rotatably provided on the lower side of several bearings 202. A mounting seat 206 is fixedly provided on the lower end of several rotating rods 203. Branch rods 207 are fixedly provided on both sides of several mounting seats 206. A fixed shaft 216 is fixedly provided on the lower end of the branch rod 207. A volute spring 217 is fixedly provided on the outer side of the fixed shaft 216. A rotating sleeve 215 rotatably provided on the outer side of the fixed shaft 216 is fixedly provided on the other end of the volute spring 217. A hook 208 is fixedly provided on the outer bottom of the rotating sleeve 215. The PCB board body 16 can be hung by the hook 208, which is convenient for the PCB board The main body 16 can be baked without dead angles. The spiral spring 217 can make the rotating sleeve 215 rotate freely on the outside of the fixed shaft 216 (that is, the rotating sleeve 215 rotates to both sides around the fixed shaft 216), and the spiral spring 217 can prevent the rotating sleeve 215 from shaking on the outside of the fixed shaft 216, so as to avoid affecting the stability of the PCB board main body 16 on the hook 208 and prevent the PCB board main body 16 from falling from the hook 208. The spiral spring 217 can also automatically reset the hook 208 when the hook 208 rotates, so that the hook 208 is in a vertical state, which is convenient for subsequent hooking of the PCB board body 16.

[0043] like Figure 1 , Figure 2 , Figure 3 , Figure 7 , Fig. 9 , Fig.16As shown, a plurality of rotating rods 203 are provided with self-rotating components, and the self-rotating components include a self-rotating gear 205 fixedly sleeved on the rotating rod 203, a first rack 204 meshing with the self-rotating gear 205 is fixedly provided on the front side of the top plate of the baking oven 1, and a second rack 213 meshing with the self-rotating gear 205 is fixedly provided on the rear side of the top plate of the baking oven 1. When the self-rotating gear 205 meshes with the first rack 204 and the second rack 213 and rotates, when the self-rotating gear 205 passes through the first rack 204 and the second rack 213, the self-rotating gear 205 rotates an integer number of circles, that is, the state of the rotating rod 203 before self-rotation is consistent with the state after self-rotation, so as to ensure that the hook at the bottom of the rotating rod 203 The bent portion 208 is always consistent with the forward direction, which is convenient for loading and unloading. When in use, when the guide bar 210 drives the connecting rod 201 to move, it will drive the rotating rod 203 at the lower end of the connecting rod 201 to move together. When the self-rotating gear 205 on the rotating rod 203 is engaged with the first rack 204, it will drive the rotating rod 203 to rotate. Therefore, the self-rotating component can make the PCB board body 16 under the rotating rod 203 rotate while moving, so that the PCB board body 16 is baked more evenly, and the photosensitive material on the surface of the PCB board body 16 is prevented from being heated unevenly, causing damage to the photosensitive material, and further affecting the quality of the subsequent production of the PCB board body 16.

[0044] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 , Fig.11 , Fig.12 , Fig.13 , Fig.17As shown, the upper side of the baking oven 1 is provided with a driving mechanism 4 for driving several suspension mechanisms 2 to move at the same time, and the driving mechanism 4 includes a second servo motor 401 fixedly arranged on the top of the baking oven 1, and the output end of the second servo motor 401 is fixedly provided with a driving gear 407 meshing with the transmission rack 212, and the output end of the second servo motor 401 is also fixedly provided with a main synchronous wheel 403 located at the top of the outer side of the baking oven 1, and the outer side of the main synchronous wheel 403 is meshed with a synchronous belt 402, and the other end of the synchronous belt 402 is meshed with a slave synchronous wheel 405, and the inner side of the slave synchronous wheel 405 is fixedly sleeved with a rotating shaft 404 that rotates and passes through the top plate of the baking oven 1, and the lower end of the rotating shaft 404 is fixedly provided with a driven gear 406 meshing with the transmission rack 212 on the other side, and the inner sides of both ends of the annular guide rail 209 are provided with transmission grooves 214 respectively cooperating with the driving gear 407 and the driven gear 406. When in use, the second servo motor 401 The driving gear 407 is driven to rotate, so that the driving gear 407 is meshed with the transmission rack 212 at one end of the guide bar 210. At the same time, the output end of the second servo motor 401 also drives the main synchronous wheel 403 to rotate, and drives the slave synchronous wheel 405 at the other end of the synchronous belt 402 to rotate, thereby driving the rotating shaft 404 to rotate, so that the driven gear 406 at the lower end of the rotating shaft 404 is meshed with the transmission rack 212 at the other end of the guide bar 210, and then through the transmission rack 212 on the inner side of the guide bar 210, it is meshed with the driving gear 407 and the driven gear 406 at both ends, driving the guide bar 210 to slide on the inner side of the annular guide rail 209, and driving the connecting rods 201, the bearing 202, the rotating rod 203, the branch rod 207 and the hook 208 on the lower side of the guide bar 210 to move together with the guide bar 210 on the lower side of the annular guide rail 209, so that the PCB board body 16 on the hook 208 is baked when it moves, thereby improving the baking efficiency.

[0045] like Figure 1 , Figure 3 As shown, a partition 11 is vertically fixedly arranged in the middle of the inner side of the baking box 1, and a baking mechanism 3 is arranged on the front side of the partition 11. The baking mechanism 3 includes a heating base 301 fixedly arranged on the front side of the partition 11, and a plurality of heating tubes 302 are equidistantly arranged on the heating base 301. The plurality of heating tubes 302 are vertically arranged, which can increase the baking area of ​​the plurality of vertically suspended PCB board bodies 16, and make the surface of the PCB board body 16 heated more evenly, thereby improving the product quality of the PCB board body 16. The plurality of heating tubes 302 are electrically connected to a controller (not shown in the figure), and the heating temperature and time of the heating tubes 302 can be controlled by the controller, so that the heating tubes 302 can adjust the baking temperature and time according to different PCB boards. Different baking programs can be called according to the type of the PCB board body 16 by the controller, for example, the baking program of type A is called to bake the PCB board of type A, and the baking program of type B is called to bake the PCB board of type B.

[0046] like Figure 2 , Figure 8 As shown, a cooling mechanism 10 is provided at the rear side of the partition 11, and the cooling mechanism 10 includes a main pipe 1001 fixedly arranged horizontally at the rear side of the partition 11, and a plurality of branch pipes 1002 arranged vertically and equidistantly are fixedly connected to the upper side of the main pipe 1001, and a plurality of air outlet nozzles 1003 are connected to one side of the branch pipe 1002, and an air inlet pipe 1004 is connected to one side of the main pipe 1001, and one end of the air inlet pipe 1004 is connected to a fan (not shown in the figure). An exhaust hole 9 located above the plurality of air outlet nozzles 1003 is provided on the top of the baking oven 1, and the exhaust hole 9 is used to discharge hot air to improve the cooling effect. When in use, the gas can be drawn into the air inlet pipe 1004 through the fan. The air flows into the main pipe 1001, and then into the branch pipe 1002, and finally is ejected through the plurality of air outlet nozzles 1003, so that the cooling area is increased and the cooling effect of the PCB board body 16 is improved. When the guide bar 210 drives the connecting rod 201 and the rotating rod 203 to move to the position of the second rack 213, the self-rotating gear 205 on the rotating rod 203 is engaged with the second rack 213, so that the rotating rod 203 can also rotate when passing through the second rack 213, so that the PCB board body 16 at the lower end of the rotating rod 203 rotates and passes through the cooling mechanism 10, so that the two surfaces of the PCB board body 16 can be evenly cooled, thereby improving the cooling effect.

[0047] Embodiment 2: Based on embodiment 1, further improvement is made in that Figure 1 , Figure 2 , Figure 4 , Figure 5 , Fig.10As shown, a feeding mechanism 5 is provided on one side of the baking oven 1, and the feeding mechanism 5 includes a feeding port 8 opened on one side of the baking oven 1, and a conveyor belt 501 is provided at the bottom of the baking oven 1, and the middle part of the conveyor belt 501 passes through the feeding port 8, one end of the conveyor belt 501 is provided on the outside of the feeding port 8, and the other end of the conveyor belt 501 is provided on the inside of the feeding port 8, and rollers are provided on the inner sides of both ends of the conveyor belt 501, and the rollers are driven by a first servo motor 502, and a first elastic belt 503 and a second elastic belt 504 are fixedly provided on the outer surface of the conveyor belt 501, and a gap is provided between the first elastic belt 503 and the second elastic belt 504, and the distance of the gap is less than the thickness of the PCB board body 16, so as to facilitate the conveyor belt 501 to pass through the first elastic belt 503. The elastic band 503 and the second elastic band 504 clamp the PCB board body 16, and elastic plates 505 located in the gap are equidistantly fixed between the first elastic band 503 and the second elastic band 504. The distance between the plurality of elastic plates 505 is consistent with the width of the PCB board body 16, which is convenient for positioning the PCB board body 16 and preventing the PCB board body 16 from shaking and affecting the loading of the PCB board body 16. The gap between the first elastic band 503 and the second elastic band 504 can be equidistantly divided into a plurality of grooves by the plurality of elastic plates 505, and the bottom of the PCB board body 16 can be plugged and positioned by the plurality of grooves, so that the plurality of PCB board bodies 16 are inserted into the grooves, which is convenient for conveying and loading.

[0048] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Fig.10As shown, a feeding mechanism 6 is provided on one side of the baking oven 1, and the feeding mechanism 6 includes a feeding port 7 opened on one side of the baking oven 1. Two insertion rods 603 passing through the feeding port 7 are provided at the bottom of the baking oven 1. The two insertion rods 603 adopt a "Z"-shaped structure, and a sponge layer or a rubber layer is provided on the surface of the two insertion rods 603 of the "Z"-shaped structure to prevent damage to the PCB board body 16. Through the "Z"-shaped structure, the two through holes 1604 at the bottom of the PCB board body 16 are inserted into the two insertion rods 603 in the straight section behind the guide bar 210, and the PCB board body 16 is separated from the hook 208 in the straight section to prevent the PCB board body 16 from being separated. During the process, the position of the hook 208 is offset, which affects the subsequent feeding process. The distance between the two plug rods 603 is consistent with the distance between the two through holes 1604 at the bottom of the PCB board body 16, which is convenient for the two through holes 1604 at the bottom of the PCB board body 16 to be inserted into the two plug rods 603. One end of the two plug rods 603 is provided with a fixing plate 601 fixedly connected to the bottom of the baking oven 1, and the upper side of the fixing plate 601 is provided with a positioning groove 602 that cooperates with the plug rod 603. The upper side of the fixing plate 601 is provided with a positioning buckle plate 604. One end of the positioning buckle plate 604 is hinged to the upper side of the fixing plate 601 through a rotating shaft, and the other end of the positioning buckle plate 604 is hinged to the upper side of the fixing plate 601 through a rotating shaft. The other end is fixed to the other side of the fixing plate 601 by a screw, and one end of the insertion rod 603 can be fixed to the inner side of the positioning groove 602 by the positioning buckle plate 604, so that the two insertion rods 603 can be easily disassembled. When in use, when the guide bar 210 drives the connecting rod 201 and the rotating rod 203 to move to the position of the two insertion rods 603, the self-rotating gear 205 on the rotating rod 203 is separated from the second rack 213. Therefore, when the guide bar 210 drives the rotating rod 203 to move, the rotating rod 203 will not rotate, that is, the PCB board body 16 at the lower end of the rotating rod 203 will not rotate, but the two through holes 1604 at the lower end of the PCB board body 16 will be inserted into the two insertion rods 603 respectively. On the top, the guide bar 210 continues to drive the connecting rod 201 and the rotating rod 203 to move. Since the two through holes 1604 at the lower end of the PCB board body 16 are inserted into the two plug rods 603, the two plug rods 603 will pull the lower end of the PCB board body 16, so that the two through holes 1604 at the upper end of the PCB board body 16 pull one end of the hook 208 to rotate, so that the rotating sleeve 215 rotates around the fixed axis 216 at the lower end of the branch rod 207 in the opposite direction of the hook 208, so that the two through holes 1604 at the upper end of the PCB board body 16 can be detached from the hook 208, so that the PCB board body 16 is automatically hung on the two plug rods 603, and automatic unloading is completed.

[0049] It should be noted that, when using this PCB board baking equipment, firstly, the bottom of the PCB board body 16 is inserted between the first elastic band 503 and the second elastic band 504, and separated by the elastic plate 505, and then the first servo motor 502 drives the conveyor belt 501 to rotate, so that the first elastic band 503 and the second elastic band 504 on the conveyor belt 501 can be driven to be transported toward the inside of the baking oven 1, so that the PCB board body 16 between the first elastic band 503 and the second elastic band 504 vertically enters the inside of the baking oven 1 from the loading port 8, and when the PCB board body 16 moves to below the hook 208 at one end of the annular guide rail 209, the conveyor belt 501 stops moving, and the second servo motor 401 drives the main conveyor belt 501 to rotate. The driven gear 407 rotates, so that the driving gear 407 meshes with the transmission rack 212 at one end of the guide bar 210. At the same time, the output end of the second servo motor 401 also drives the main synchronous wheel 403 to rotate, and drives the slave synchronous wheel 405 at the other end of the synchronous belt 402 to rotate, thereby driving the rotating shaft 404 to rotate, so that the driven gear 406 at the lower end of the rotating shaft 404 meshes with the transmission rack 212 at the other end of the guide bar 210, and then meshes with the driving gear 407 and the driven gear 406 at both ends through the transmission rack 212 on the inner side of the guide bar 210, driving the guide bar 210 to slide on the inner side of the annular guide rail 209, driving the several connecting rods 201, bearings 202, rotating rods 203, branch rods 207 and hooks 208 on the lower side of the guide bar 210 to move along with the guide bar 2 10 moves together on the lower side of the circular guide rail 209, so that the two hooks 208 can hook the two through holes 1604 at the upper end of the PCB board body 16. When the guide bar 210 continues to move, it will drive the hook 208 to move, and then pull the PCB board body 16 out from between the first elastic band 503 and the second elastic band 504 to complete the loading. When the guide bar 210 drives the connecting rod 201 to move, it will drive the rotating rod 203 at the lower end of the connecting rod 201 to move together. When the self-rotating gear 205 on the rotating rod 203 is engaged with the first rack 204, it will drive the rotating rod 203 to rotate. Therefore, the PCB board body 16 below the rotating rod 203 can be rotated while moving through the self-rotating component. Before the self-rotation, the bent part of the hook 208 is aligned with the first rack 204. The forward direction is consistent, and the bending part of the hook 208 is also consistent with the forward direction after the self-rotation is completed, that is, during the process of the self-rotation gear 205 meshing with the first rack 204, the rotating rod 203 rotates an integer circle. When the self-rotation gear 205 meshes with the first rack 204, it is in the baking process. When the self-rotation gear 205 meshes with the second rack 213, it is in the cooling process. After the cooling is completed, the guide bar 210 drives the connecting rod 201 and the rotating rod 203 to move to the position of the two insertion rods 603. At this time, the self-rotation gear 205 on the rotating rod 203 is separated from the second rack 213, so when the guide bar 210 drives the rotating rod 203 to move, the rotating rod 203 will not rotate, that is, the PCB board body 16 at the lower end of the rotating rod 203 will not rotate.The two through holes 1604 at the lower end of the PCB body 16 will be inserted into the two plug rods 603 respectively, and the guide bar 210 will continue to drive the connecting rod 201 and the rotating rod 203 to move. Since the two through holes 1604 at the lower end of the PCB body 16 are inserted into the two plug rods 603, the two plug rods 603 will pull the lower end of the PCB body 16, so that the two through holes 1604 at the upper end of the PCB body 16 pull one end of the hook 208 to rotate, so that the rotating sleeve 215 rotates around the fixed shaft 216 at the lower end of the branch rod 207 in the opposite direction of the hook 208, so that the two through holes 1604 at the upper end of the PCB body 16 can be separated from the hook 208, so that the PCB body 16 is automatically hung on the two plug rods 603, and the automatic unloading is completed.

[0050] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A PCB board baking device, comprising a baking oven (1), characterized in that: A plurality of suspension mechanisms (2) are arranged on the top of the inner side of the baking oven (1); a partition (11) is fixedly arranged vertically in the middle of the inner side of the baking oven (1); a baking mechanism (3) is arranged on the front side of the partition (11); a cooling mechanism (10) is arranged on the rear side of the partition (11); a driving mechanism (4) is arranged on the upper side of the baking oven (1) for simultaneously driving the plurality of suspension mechanisms (2) to pass through the baking mechanism (3) and the cooling mechanism (10) in sequence; a loading mechanism (5) and a unloading mechanism (6) are arranged on one side of the baking oven (1); the loading mechanism (5) is used to move a PCB board body (16) onto the suspension mechanism (2); and the unloading mechanism (6) is used to remove the PCB board body (16) on the suspension mechanism (2); The suspension mechanism (2) comprises an annular guide rail (209) fixedly arranged at the top of the inner side, a guide bar (210) slidably arranged on the inner side of the annular guide rail (209), a transmission rack (212) fixedly arranged on the inner side of the guide bar (210), an annular groove (211) formed on the lower side of the annular guide rail (209), a plurality of connecting rods (201) passing through the annular groove (211) fixedly arranged on the lower side of the guide bar (210), and a plurality of the connecting rods (201) A rotating rod (203) is rotatably provided on the lower side of each of the rotating rods (203) via a bearing (202); a mounting seat (206) is fixedly provided at the lower end of each of the rotating rods (203); branch rods (207) are fixedly provided on both sides of each of the mounting seats (206); a hook (208) is provided at the lower end of each of the branch rods (207); a reset assembly is provided between the hook (208) and the branch rod (207); and a self-rotating assembly is provided on each of the rotating rods (203); The driving mechanism (4) comprises a second servo motor (401) fixedly arranged on the top of the baking oven (1); a driving gear (407) meshing with a transmission rack (212) is fixedly arranged at the output end of the second servo motor (401); a main synchronous wheel (403) located at the top of the outer side of the baking oven (1) is also fixedly arranged at the output end of the second servo motor (401); a synchronous belt (402) is meshed on the outer side of the main synchronous wheel (403); a slave synchronous wheel (405) is meshed on the other end of the synchronous belt (402); a rotating shaft (404) that rotates and passes through the top plate of the baking oven (1) is fixedly sleeved on the inner side of the slave synchronous wheel (405); a driven gear (406) meshing with the transmission rack (212) on the other side is fixedly arranged at the lower end of the rotating shaft (404); and transmission grooves (214) that respectively cooperate with the driving gear (407) and the slave gear (406) are provided on the inner sides of both ends of the annular guide rail (209); The reset assembly comprises a fixed shaft (216) fixedly arranged at the lower end of the branch rod (207), a volute spring (217) fixedly arranged on the outer side of the fixed shaft (216), and a rotating sleeve (215) rotatably arranged on the outer side of the fixed shaft (216) and fixedly connected to the hook (208) fixedly arranged at the other end of the volute spring (217); The feeding mechanism (5) comprises a feeding port (8) opened on one side of the baking oven (1); a conveyor belt (501) passing through the feeding port (8) is arranged at the bottom of the baking oven (1); one end of the conveyor belt (501) is driven by a first servo motor (502); a first elastic belt (503) and a second elastic belt (504) are fixedly arranged on the outer surface of the conveyor belt (501); a gap is arranged between the first elastic belt (503) and the second elastic belt (504); elastic plates (505) located in the gap are fixedly arranged equidistantly between the first elastic belt (503) and the second elastic belt (504); and a PCB board body (16) is arranged between the first elastic belt (503), the second elastic belt (504) and two adjacent elastic plates (505); The material discharge mechanism (6) comprises a material discharge port (7) provided on one side of the baking oven (1); two insertion rods (603) passing through the material discharge port (7) are provided at the bottom of the baking oven (1); one end of each of the two insertion rods (603) is provided with a fixing plate (601) fixedly connected to the bottom of the baking oven (1); a positioning groove (602) cooperating with the insertion rod (603) is provided on the upper side of the fixing plate (601); and a positioning buckle plate (604) is provided on the upper side of the fixing plate (601) for fixing one end of the insertion rod (603) to the inner side of the positioning groove (602) by means of screws; The two hooks (208) hook the two through holes (1604) at the upper end of the PCB body (16), and the guide bar (210) moves to drive the hooks (208) to move, so that the PCB body (16) is pulled out from between the first elastic band (503) and the second elastic band (504), and the loading is completed. After cooling is completed, the self-rotating gear (205) on the rotating rod (203) is separated from the second rack (213), and the two through holes (1604) at the lower end of the PCB body (16) are respectively inserted into the two insertion rods (6 03), the guide bar (210) continues to drive the connecting rod (201) and the rotating rod (203) to move, and the two insertion rods (603) pull the lower end of the PCB board body (16), so that the two through holes (1604) at the upper end of the PCB board body (16) pull one end of the hook (208) to rotate, so that the two through holes (1604) at the upper end of the PCB board body (16) are separated from the hook (208), so that the PCB board body (16) is automatically hung on the two insertion rods (603), completing automatic unloading.

2. A PCB board baking device according to claim 1, characterized in that: The self-rotating assembly comprises a self-rotating gear (205) fixedly sleeved on a rotating rod (203); a first rack (204) meshing with the self-rotating gear (205) is fixedly arranged on the front side of a top plate of the baking oven (1); and a second rack (213) meshing with the self-rotating gear (205) is fixedly arranged on the rear side of the top plate of the baking oven (1).

3. A PCB board baking device according to claim 2, characterized in that: The front side of the baking oven (1) is sealed with a front sealed door (12), and a front observation window (13) is provided on the front sealed door (12); the rear side of the baking oven (1) is sealed with a rear sealed door (14), and a rear observation window (15) is provided on the rear sealed door (14); the baking mechanism (3) comprises a heating base (301) fixedly arranged on the front side of the partition (11), and a plurality of heating tubes (302) are equidistantly arranged on the heating base (301).

4. A PCB board baking device according to claim 3, characterized in that: The cooling mechanism (10) comprises a main pipe (1001) fixedly arranged horizontally on the rear side of the partition (11); a plurality of branch pipes (1002) arranged vertically and equidistantly are fixedly connected to the upper side of the main pipe (1001); a plurality of air outlet nozzles (1003) are connected to one side of the branch pipes (1002); an air inlet pipe (1004) is connected to one side of the main pipe (1001); and an exhaust hole (9) located above the plurality of air outlet nozzles (1003) is provided on the top of the baking oven (1).

5. A PCB board produced by a PCB board baking device according to any one of claims 1 to 4, comprising a PCB board body (16), characterized in that: The PCB board body (16) comprises a bottom plate (1601) and a top plate (1602), a plurality of intermediate plates (1603) are arranged between the bottom plate (1601) and the top plate (1602), a plurality of conductive holes (1606) are provided in the middle of the plurality of intermediate plates (1603), through holes (1604) are provided at four corners of the bottom plate (1601), the top plate (1602) and the plurality of intermediate plates (1603), a plurality of stepped holes (1607) concentric with the conductive holes (1606) are provided in the middle of the top plate (1602), and a plurality of copper pillars (1605) cooperating with the conductive holes (1606) and the stepped holes (1607) are fixedly arranged on the upper side of the bottom plate (1601).

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