Drying equipment for circuit board production

Abstract

The invention discloses drying equipment for circuit board production, relates to the technical field of circuit board production, and aims to solve the problems that the positioning effect is poor, a circuit board cannot be fixed and positioned, the structure is unstable, the circuit board is deviated during processing and needs to be mounted and fixed again, time and labor are wasted, and the specification of the circuit board cannot meet customer requirements or market standards. According to the invention, the relative movement of the L-shaped pieces on the two sides and the guide plate is realized by utilizing the mutual transmission among the transmission piece, the support rod and the fixed plate, the problem that the circuit board cannot meet the requirement due to the unstable structure is avoided, and then the circuit board is adsorbed and fixed by utilizing the mutual cooperation of the screw rod, the second sliding block, the pressing plate and the sucker, so that the production efficiency is improved. The problem that the circuit board is longitudinally deviated and needs to be reinstalled during drying is avoided, then the rotating rod, the material distributing plate, the limiting rod and the stirring piece are matched with one another, the stirring piece is manually rotated, the material distributing plate is driven to deflect, manual operation is not needed during material discharging, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board production, and in particular to a drying device for circuit board production. Background Art

[0002] Drying equipment in circuit board production is one of the key production equipment. It is mainly used to dry and preserve circuit boards to improve the product quality of circuit boards. With the rapid development of the electronics industry, the production efficiency and quality requirements of circuit boards are getting higher and higher. Therefore, the technology of drying equipment is also constantly improving and improving. There are many types of drying equipment for circuit board production on the market, including hot air circulation ovens, vacuum ovens, etc. These equipment have their own characteristics and are suitable for different production needs. Modern drying equipment focuses on high efficiency and energy saving. By adopting advanced heating systems and insulation systems, it realizes the rational use of energy and reduces energy consumption. With the development of intelligent technology, drying equipment has gradually realized intelligent control. Through intelligent digital temperature regulators and other equipment, the drying temperature and time can be accurately set and controlled to ensure the consistency and stability of the drying effect. Modern drying equipment also pays attention to environmental protection design, and adopts a closed design to reduce the loss of heat and cold energy, reduce energy consumption and environmental pollution.

[0003] Chinese patent document CN219776138U discloses a drying device for circuit board production, including a mounting frame, legs are arranged on both sides of the bottom end of the mounting frame, a motor is arranged on one side of the mounting frame, a fixed plate is arranged on the other side of the mounting frame, a filter box is arranged on the top of the fixed plate, a hot air blower is arranged on the top of the mounting frame, a connecting pipe is arranged on the hot air blower, a diverter plate is arranged on the top of the mounting frame, a nozzle is arranged at the bottom end of the diverter plate, the circuit board is placed in the fixed frame, and then the electric telescopic rod is turned on, the electric telescopic rod drives the pressing plate, the pressing plate clamps the circuit board, and after clamping, the hot air blower draws hot air into the diverter plate, and then enters the nozzle from the diverter plate. , the circuit board is blown and dried through the nozzle. After drying one side, the motor is turned on, the motor drives the transmission rod, and the transmission rod drives the fixed frame to flip so that the other side of the circuit board faces up, and then it is dried to make the circuit board dry more evenly. However, it has limitations, poor positioning effect, and unstable fixation, which will cause the circuit board to loosen during processing and deviate under the action of the wind of the drying parts. It needs to be reinstalled and fixed, which is time-consuming and labor-intensive, and the circuit board needs to be placed and taken out manually in the drying box. When a person's hand accidentally touches the drying parts inside the box, there is a risk of scalding the person's hand. The safety factor is low, and the specifications of the circuit board cannot meet customer requirements or market standards.

[0004] Therefore, in order to solve such problems, we proposed a drying equipment for circuit board production. Summary of the invention

[0005] The object of the present invention is to provide a drying equipment for circuit board production, aiming to solve the limitations of the above-mentioned background technology, poor positioning effect, and unstable fixation, which may cause the circuit boards to loosen during processing and shift under the action of wind force of the drying parts, requiring reinstallation and fixation, which is time-consuming and labor-intensive, and requires manual placement and removal of the circuit boards in the drying box. When a person's hands accidentally touch the drying parts inside the box, there is a risk of scalding the person's hands, and the safety factor is low, making it impossible for the specifications of the circuit boards to meet customer requirements or market standards.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a drying device for circuit board production, comprising a guide correction structure, the guide correction structure comprising a base frame, four first slide grooves are opened on both sides of the top surface of the base frame, a first motor is fixedly connected to the bottom of the base frame, a rotating shaft is fixedly connected to the output end of the first motor, a transmission member is fixedly connected to the top of the rotating shaft, first fixing bolts are fixedly connected to both ends of the top surface of the transmission member, a support rod is movably sleeved on the first fixing bolt, a second fixing bolt is movably sleeved on the side of the support rod away from the first fixing bolt, a fixing plate is fixedly connected to the bottom of the second fixing bolt, a first slider is fixedly connected to the bottom of the fixing plate, and a threaded connection on the fixing plate The top of the fixing plate is fixedly connected with an L-shaped piece, the top of the L-shaped piece is fixedly connected with a guide plate, the outer wall of the guide plate is fixedly connected with a rubber body, the top of the guide plate is fixedly connected with a vertical plate, two second sliding grooves are provided on the outer wall of one side of the vertical plate, and a mounting groove is provided on the outer wall of the other side of the vertical plate, a sliding rod is fixedly connected in the second sliding groove, the top of the vertical plate is fixedly connected with a second motor, the output end of the second motor is fixedly connected with a screw rod, the external thread of the screw rod is connected with a second slider, a pressing plate is fixedly connected to the outer wall of the second slider, a suction cup is fixedly connected to the bottom of the pressing plate, a mounting block is movably connected in the mounting groove, and an inclined block is fixedly connected to the outer wall of the mounting block.

[0007] Preferably, a conveying structure is provided on one side of the base frame, and the conveying structure includes a fixing part on one side of the base frame, a humidity detector is fixedly connected to the top of the fixing part, a third motor is fixedly connected to the outer wall of the fixing part, a rotating rod is fixedly connected to the output end of the third motor, an active pulley is fixedly connected to the rotating rod, a conveyor belt is movably sleeved on the active pulley, a barb is fixedly connected to the conveyor belt, and a driven pulley is movably sleeved on the side of the conveyor belt away from the active pulley.

[0008] Preferably, a drying structure is provided on one side of the fixing member, and the drying structure comprises a bracket, to which the drying member is fixedly connected.

[0009] Preferably, a material unloading structure is provided on one side of the conveyor belt, and the material unloading structure includes a push rod, the top of the push rod is fixedly connected to a material unloading shell, the outer wall of the material unloading shell is provided with a through groove, the bottom of the material unloading shell is fixedly connected to a material dividing shell, the top of the material dividing shell is provided with a material unloading cavity, the bottom of the material unloading cavity is provided with a material dividing cavity, an arc groove is provided on the outer wall of the material dividing shell, a circular hole is provided on the top of the arc groove on the outer wall of the material dividing shell, a rotating rod is movably connected in the circular hole, the top of the rotating rod is fixedly connected to a material dividing plate, the top of the material dividing plate is fixedly connected to a limiting rod, and a toggle piece is fixedly connected to the outer wall of the limiting rod.

[0010] Preferably, a movable structure is provided at the bottom of the base frame, and the movable structure includes a bottom plate fixedly connected to the bottom of the base frame, a universal wheel is fixedly connected to the bottom of the bottom plate, and a controller is fixedly connected to the top of the bottom plate.

[0011] Preferably, the first sliding block is located in a first sliding groove, and the base frame and the fixed plate are slidably connected to the first sliding block via the first sliding groove.

[0012] Preferably, the second sliding block is located in a second sliding groove, and the vertical plate and the pressure plate are slidably connected to the second sliding block via the second sliding groove.

[0013] Preferably, the mounting block is located in the mounting groove, and the vertical plate and the inclined block are slidably connected to the mounting block through the mounting groove.

[0014] Preferably, the limiting rod passes through the arc groove, and the material dividing shell and the material dividing plate are slidably connected to the limiting rod through the arc groove.

[0015] Preferably, the bolts penetrate the fixing plate and the L-shaped member, and the fixing plate and the L-shaped member are threadedly connected by the bolts.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes a drying device for circuit board production, which utilizes mutual transmission between a transmission member, a support rod and a fixed plate to realize relative movement between the L-shaped members and the guide plate on both sides, so as to realize the limiting fixation of the circuit board by the rubber body, thereby avoiding the problem of structural instability causing the circuit board to fail to meet the requirements. Secondly, the screw rod, the second slider, the pressure plate and the suction cup cooperate with each other to adsorb and fix the circuit board, so that the pressure plate fixes and limits the top of the circuit board, thereby avoiding the problem of longitudinal displacement of the circuit board during drying and the need to reinstall. A barb is fixed on the outer surface of the conveyor belt, so that when the drying of the circuit board is finished, the barb removes the circuit board on the suction cup, thereby causing the circuit board to fall onto the conveyor belt and then be discharged to the lower material shell. Then, the rotating rod, the dividing plate, the limiting rod and the toggle member cooperate with each other, and the toggle member is manually rotated to drive the dividing plate to deflect, so that no manual operation is required during discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of a drying device for circuit board production of the present invention; Figure 2 This is a three-dimensional exploded view of a drying device for circuit board production according to the present invention; Figure 3 It is a three-dimensional exploded view of a guide correction structure of a drying device for circuit board production of the present invention; Figure 4 A three-dimensional exploded view of a guide member of a drying device for producing circuit boards according to the present invention; Figure 5 It is a three-dimensional exploded view of a limiting member of a drying device for circuit board production of the present invention; Figure 6 It is a three-dimensional exploded view of a conveying structure of a drying device for circuit board production of the present invention; Figure 7 It is a three-dimensional schematic diagram of a material dividing part of a drying device for producing circuit boards of the present invention; Figure 8 It is a cross-sectional schematic diagram of a material dividing shell of a processing structure of a drying device for circuit board production of the present invention; Fig. 9 It is a three-dimensional exploded view of the drying structure of a drying device for circuit board production according to the present invention.

[0018] Legend: 1. Guide correction structure; 11. Base frame; 111. First slide groove; 12. First motor; 121. Rotating shaft; 122. Transmission member; 123. First fixing bolt; 13. Support rod; 131. Second fixing bolt; 132. Fixing plate; 133. First slider; 134. Bolt; 14. L-shaped member; 141. Guide plate; 142. Rubber body; 15. Vertical plate; 151. Second slide groove; 152. Mounting groove; 153. Slide rod; 16. Second motor; 161. Screw rod; 162. Second slider; 163. Press plate; 164. Suction cup; 17. Mounting block; 171. Oblique block; 2. Conveying structure; 21. Fixing part; 211. Humidity detector; 22. Third motor; 221. Rotating rod; 222. Active pulley; 23. Conveyor belt; 231. Barb; 24. Driven pulley; 3. Drying structure; 31. Bracket; 32. Drying part; 4. Unloading structure; 41. Push rod; 42. Unloading shell; 421. Through groove; 43. Distributing shell; 431. Unloading cavity; 432. Distributing cavity; 433. Arc groove; 434. Round hole; 44. Rotating rod; 441. Distributing plate; 442. Limiting rod; 443. Toggle member; 5. Moving structure; 51. Bottom plate; 52. Universal wheel; 53. Controller. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In order to solve the problem that the circuit board is not guided and corrected, the positioning effect is poor, and the fixation is unstable, which will cause the circuit board to loosen during processing and deviate under the action of the wind of the drying piece. It needs to be reinstalled and fixed, which is time-consuming and labor-intensive and cannot meet customer requirements or market standards. Please refer to Figure 1-Figure 4 , providing the following preferred technical solutions.

[0021] An embodiment of the present invention is a drying device for producing circuit boards, comprising a guide correction structure 1, the guide correction structure 1 comprising a base frame 11, four first slide grooves 111 are provided on both sides of the top surface of the base frame 11, a first motor 12 is fixedly connected to the bottom of the base frame 11, a rotating shaft 121 is fixedly connected to the output end of the first motor 12, a transmission member 122 is fixedly connected to the top of the rotating shaft 121, first fixing bolts 123 are fixedly connected to both ends of the top surface of the transmission member 122, a support rod 13 is movably sleeved on the first fixing bolt 123, a second fixing bolt 131 is movably sleeved on the side of the support rod 13 away from the first fixing bolt 123, a fixing plate 132 is fixedly connected to the bottom of the second fixing bolt 131, a first slider 133 is fixedly connected to the bottom of the fixing plate 132, a bolt 134 is threadedly connected to the fixing plate 132, and the fixing plate 132 is fixedly connected to the bottom. An L-shaped member 14 is fixedly connected to the top of the L-shaped member 14, a guide plate 141 is fixedly connected to the top of the L-shaped member 14, a rubber body 142 is fixedly connected to the outer wall of the guide plate 141, a vertical plate 15 is fixedly connected to the top of the guide plate 141, two second slide grooves 151 are provided on the outer wall of one side of the vertical plate 15, a mounting groove 152 is provided on the outer wall of the other side of the vertical plate 15, a slide rod 153 is fixedly connected in the second slide groove 151, a second motor 16 is fixedly connected to the top of the vertical plate 15, a screw rod 161 is fixedly connected to the output end of the second motor 16, a second slider 162 is connected to the external thread of the screw rod 161, a pressing plate 163 is fixedly connected to the outer wall of the second slider 162, a suction cup 164 is fixedly connected to the bottom of the pressing plate 163, a mounting block 17 is movably connected in the mounting groove 152, and an inclined block 171 is fixedly connected to the outer wall of the mounting block 17.

[0022] Specifically, the first motor 12 drives the rotating shaft 121 to rotate, so that the rotating shaft 121 drives the transmission member 122 to rotate, and the transmission member 122 drives the first fixed bolt 123 to deflect, and the first fixed bolt 123 drives the second fixed bolt 131 and the fixed plate 132 to deflect through the support rod 13, and the second motor 16 drives the screw rod 161 to rotate, so that the screw rod 161 drives the second slider 162 to perform vertical lifting movement, and the second slider 162 drives the pressure plate 163 to perform vertical lifting movement.

[0023] A conveying structure 2 is provided on one side of the base frame 11, and the conveying structure 2 includes a fixing member 21 on one side of the base frame 11, a humidity detector 211 is fixedly connected to the top of the fixing member 21, a third motor 22 is fixedly connected to the outer wall of the fixing member 21, a rotating rod 221 is fixedly connected to the output end of the third motor 22, an active pulley 222 is fixedly connected to the rotating rod 221, a conveyor belt 23 is movably sleeved on the active pulley 222, a barb 231 is fixedly connected to the conveyor belt 23, and a driven pulley 24 is movably sleeved on the side of the conveyor belt 23 away from the active pulley 222.

[0024] Specifically, the third motor 22 drives the rotating rod 221 to rotate, and the rotating rod 221 drives the active pulley 222 to rotate, so that the active pulley 222 drives the driven pulley 24 to rotate through the conveyor belt 23 .

[0025] A drying structure 3 is provided on one side of the fixing member 21 . The drying structure 3 includes a bracket 31 , to which a drying member 32 is fixedly connected.

[0026] Specifically, the drying element 32 is used to dry the water stains and moisture on the circuit board.

[0027] A material unloading structure 4 is provided on one side of the conveyor belt 23, and the material unloading structure 4 includes a push rod 41, and a material unloading shell 42 is fixedly connected to the top of the push rod 41, and a through groove 421 is provided on the outer wall of the material unloading shell 42, and a material distribution shell 43 is fixedly connected to the bottom of the material unloading shell 42, and a material unloading cavity 431 is provided on the top of the material distribution shell 43, and a material distribution cavity 432 is provided at the bottom of the material unloading cavity 431, and an arc groove 433 is provided on the outer wall of the material distribution shell 43, and a circular hole 434 is provided on the top of the arc groove 433 on the outer wall of the material distribution shell 43, and a rotating rod 44 is movably connected in the circular hole 434, and a material distribution plate 441 is fixedly connected to the top of the rotating rod 44, and a limiting rod 442 is fixedly connected to the top of the material distribution plate 441, and a toggle piece 443 is fixedly connected to the outer wall of the limiting rod 442.

[0028] Specifically, by manually toggling the toggle member 443 , the toggle member 443 drives the rotating rod 44 , the material dividing plate 441 and the limiting rod 442 to deflect, thereby facilitating material dividing during material discharge.

[0029] A mobile structure 5 is provided at the bottom of the base frame 11 . The mobile structure 5 includes a bottom plate 51 fixedly connected to the bottom of the base frame 11 . A universal wheel 52 is fixedly connected to the bottom of the bottom plate 51 . A controller 53 is fixedly connected to the top of the bottom plate 51 .

[0030] Specifically, the controller 53 is used to control the first motor 12 , the second motor 16 , the humidity detector 211 and the third motor 22 , thereby improving the overall automation performance of the device.

[0031] Furthermore, in order to enhance the stability of the device and reduce the workload of workers, such as Figure 5-Figure 9 As shown, the following preferred technical solutions are provided.

[0032] The first sliding block 133 is located in the first sliding groove 111 , and the base frame 11 and the fixing plate 132 are slidably connected with the first sliding block 133 through the first sliding groove 111 .

[0033] The second sliding block 162 is located in the second sliding groove 151 , and the vertical plate 15 and the pressing plate 163 are slidably connected with the second sliding block 162 via the second sliding groove 151 .

[0034] The mounting block 17 is located in the mounting groove 152 , and the vertical plate 15 and the inclined block 171 are slidably connected with the mounting block 17 through the mounting groove 152 .

[0035] The limiting rod 442 passes through the arc groove 433 , and the material dividing shell 43 and the material dividing plate 441 are slidably connected with the limiting rod 442 through the arc groove 433 .

[0036] The bolts 134 penetrate through the fixing plate 132 and the L-shaped member 14 , and the fixing plate 132 and the L-shaped member 14 are threadedly connected by the bolts 134 .

[0037] Working principle: first, place the circuit board to be dried on the top of the conveyor belt 23, and then start the third motor 22. The third motor 22 drives the rotating rod 221 to rotate, and the rotating rod 221 drives the active pulley 222 to rotate, so that the active pulley 222 drives the driven pulley 24 to rotate through the conveyor belt 23, so that the conveyor belt 23 is continuously transported. When the circuit board moves to between the guide plates 141 on both sides, start the first motor 12, and the first motor 12 drives the rotating shaft 121 to rotate, so that the rotating shaft 121 drives the transmission member 122 to rotate, and the transmission member 122 drives the first fixed bolt 123 to deflect, and the first fixed bolt 123 drives the second fixed bolt 131 and the fixed plate 132 to deflect through the support rod 13, so that the fixed plate 132 drives the L-shaped member 14 and the guide plate 141 to move relative to each other, so that the guide plate 141 can move the circuit board. The second motor 16 is started, and the second motor 16 drives the screw rod 161 to rotate, so that the screw rod 161 drives the second slider 162 to perform vertical lifting movement, and the second slider 162 drives the pressure plate 163 to perform vertical lifting movement, so that the pressure plate 163 limits the circuit board in the vertical direction, and the suction cup 164 adsorbs the circuit board. The controller 53 is used to start the drying part 32, and the drying part 32 dries the circuit board. When the drying is completed, the conveyor belt 23 is started again, and the barb 231 on the conveyor belt 23 removes the circuit board adsorbed on the suction cup 164. When the circuit board falls to the conveyor belt 23, the conveyor belt 23 drives the circuit board to move to the unloading shell 42, and then the toggle member 443 is manually toggled, and the toggle member 443 drives the rotating rod 44, the dividing plate 441 and the limiting rod 442 to deflect, so as to facilitate manual dividing and then discharging.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drying device for circuit board production, comprising a guide correction structure (1), characterized in that: The guide correction structure (1) comprises a base frame (11), four first slide grooves (111) are provided on both sides of the top surface of the base frame (11), a first motor (12) is fixedly connected to the bottom of the base frame (11), a rotating shaft (121) is fixedly connected to the output end of the first motor (12), a transmission member (122) is fixedly connected to the top of the rotating shaft (121), first fixing bolts (123) are fixedly connected to both ends of the top surface of the transmission member (122), a support rod (13) is movably sleeved on the first fixing bolt (123), a second fixing bolt (131) is movably sleeved on a side of the support rod (13) away from the first fixing bolt (123), a fixing plate (132) is fixedly connected to the bottom of the second fixing bolt (131), a first sliding block (133) is fixedly connected to the bottom of the fixing plate (132), a bolt (134) is threadedly connected to the fixing plate (132), an L-shaped member (14) is fixedly connected to the top of the fixing plate (132), and the L-shaped member (14) is fixedly connected to the top of the fixing plate (132). A guide plate (141) is fixedly connected to the top of the guide plate (141), a rubber body (142) is fixedly connected to the outer wall of the guide plate (141), a vertical plate (15) is fixedly connected to the top of the guide plate (141), two second slide grooves (151) are provided on the outer wall of one side of the vertical plate (15), a mounting groove (152) is provided on the outer wall of the other side of the vertical plate (15), a slide rod (153) is fixedly connected in the second slide groove (151), a second motor (16) is fixedly connected to the top of the vertical plate (15), a screw rod (161) is fixedly connected to the output end of the second motor (16), an external thread of the screw rod (161) is connected to the second slider (162), a pressure plate (163) is fixedly connected to the outer wall of the second slider (162), a suction cup (164) is fixedly connected to the bottom of the pressure plate (163), a mounting block (17) is movably connected in the mounting groove (152), and an inclined block (171) is fixedly connected to the outer wall of the mounting block (17).

2. A drying device for circuit board production according to claim 1, characterized in that: A conveying structure (2) is provided on one side of the base frame (11), the conveying structure (2) comprising a fixing member (21) on one side of the base frame (11), a humidity detector (211) being fixedly connected to the top of the fixing member (21), a third motor (22) being fixedly connected to the outer wall of the fixing member (21), a rotating rod (221) being fixedly connected to the output end of the third motor (22), a driving pulley (222) being fixedly connected to the rotating rod (221), a conveyor belt (23) being movably sleeved on the driving pulley (222), a barb (231) being fixedly connected to the conveyor belt (23), and a driven pulley (24) being movably sleeved on a side of the conveyor belt (23) away from the driving pulley (222).

3. A drying device for circuit board production according to claim 2, characterized in that: A drying structure (3) is provided on one side of the fixing member (21), wherein the drying structure (3) comprises a bracket (31), and a drying member (32) is fixedly connected to the bracket (31).

4. A drying device for circuit board production according to claim 2, characterized in that: A material discharge structure (4) is provided on one side of the conveyor belt (23), the material discharge structure (4) comprising a top rod (41), a material discharge housing (42) being fixedly connected to the top of the top rod (41), a through groove (421) being provided on the outer wall of the material discharge housing (42), a material distribution housing (43) being fixedly connected to the bottom of the material discharge housing (42), a material discharge cavity (431) being provided on the top of the material distribution housing (43), and a material distribution cavity (431) being provided on the bottom of the material discharge cavity (431). 2) An arc-shaped groove (433) is provided on the outer wall of the material distribution shell (43); a circular hole (434) is provided at the top of the arc-shaped groove (433) on the outer wall of the material distribution shell (43); a rotating rod (44) is movably connected in the circular hole (434); a material distribution plate (441) is fixedly connected to the top of the rotating rod (44); a limiting rod (442) is fixedly connected to the top of the material distribution plate (441); and a toggle member (443) is fixedly connected to the outer wall of the limiting rod (442).

5. A drying device for circuit board production according to claim 1, characterized in that: A movable structure (5) is provided at the bottom of the base frame (11), the movable structure (5) comprising a bottom plate (51) fixedly connected to the bottom of the base frame (11), a universal wheel (52) fixedly connected to the bottom of the bottom plate (51), and a controller (53) fixedly connected to the top of the bottom plate (51).

6. A drying device for circuit board production according to claim 1, characterized in that: The first sliding block (133) is located in the first sliding groove (111), and the base frame (11) and the fixing plate (132) are slidably connected to the first sliding block (133) via the first sliding groove (111).

7. A drying device for circuit board production according to claim 1, characterized in that: The second sliding block (162) is located in the second sliding groove (151), the screw rod (161) passes through the second sliding block (162) and is threadedly connected to the second sliding block (162), and the vertical plate (15) and the pressing plate (163) are slidably connected to the second sliding block (162) via the second sliding groove (151).

8. A drying device for circuit board production according to claim 1, characterized in that: The mounting block (17) is located in the mounting groove (152), and the vertical plate (15) and the inclined block (171) are slidably connected to the mounting block (17) via the mounting groove (152).

9. A drying device for circuit board production according to claim 4, characterized in that: The limiting rod (442) passes through the arc-shaped groove (433), and the material distribution housing (43) and the material distribution plate (441) are slidably connected to the limiting rod (442) via the arc-shaped groove (433).

10. A drying device for circuit board production according to claim 1, characterized in that: The bolt (134) passes through the fixing plate (132) and the L-shaped member (14), and the fixing plate (132) and the L-shaped member (14) are threadedly connected via the bolt (134).

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