Circuit board conveying device with guide structure

Abstract

The invention relates to the technical field of circuit boards, in particular to a circuit board conveying device with a guide structure, which comprises a rack, a plurality of uniformly distributed transmission shafts are arranged at the corner of the rack, connecting mechanisms are arranged at the two ends of each transmission shaft, and mounting grooves are formed in the two ends of each transmission shaft; the static electricity removing roller is composed of a first roller body and a second roller body, mounting blocks are fixedly mounted on the opposite sides of every two adjacent first roller body and second roller body, and clamping and fixing grooves are formed in the two sides of each mounting block. The electrostatic eliminating device has the beneficial effects that the electrostatic eliminating rollers are divided into the first roller and the second roller, under the condition that the transmission shaft and the rack are fixed, one of the first roller and the second roller can be replaced independently, the problem that in the prior art, one of the first roller and the second roller can be disassembled only by disassembling multiple electrostatic eliminating rollers is solved, and the electrostatic eliminating device is easy to operate and high in practicability. And the cost can be saved.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board conveying, and specifically provides a circuit board conveying device with a guiding structure. Background Art

[0002] A circuit board is generally also called a printed circuit board. According to the characteristics of the number of layers of the circuit board, it is generally divided into single-sided boards, double-sided boards, and multi-layer circuit boards. During the current automated production of circuit boards, a conveying device is used to convey the circuit boards at workstations.

[0003] When the circuit board passes through the turning point of the conveying device, the pressure increases and the friction intensifies, resulting in the generation of static electricity on the circuit board at the turning point. The accumulation of static electricity may cause damage to the electronic components in the circuit board. In the prior art, conductive rollers are provided and grounded to a grounding device. When the conductive rollers come into contact with the surface of the circuit board, the static electricity on the circuit board is transferred to the ground by the grounding device, thereby eliminating the static electricity on the circuit board. After long-term use, due to problems such as wear and aging, and the accumulation of tin slag, flux, or dust on the surface area of the conductive rollers, the static electricity dissipation ability of the conductive rollers will decrease or even fail. In order to ensure the effect of static electricity removal from the circuit board, it is necessary to replace the failed conductive rollers in a timely manner. In the prior art, the conductive rollers are integrally sleeved outside the rotating shaft. When the conductive rollers need to be replaced, the rotating shaft needs to be disassembled first, and then the multiple conductive rollers are disassembled one by one. If only the conductive roller in the middle part fails, it is also necessary to disassemble multiple ones on one side of it before the failed conductive roller can be disassembled, resulting in the problem of cumbersome disassembly and assembly of the failed conductive rollers. Summary of the Invention

[0004] The purpose of the present invention is to provide a circuit board conveying device with a guiding structure to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A circuit board conveying device with a guiding structure includes a frame. At the bottom of one end of the frame, two guiding mechanisms are provided. At the bending angle of the frame, multiple uniformly distributed transmission shafts are provided. At both ends of each transmission shaft, connection mechanisms are provided. Installation grooves are opened at both ends of each transmission shaft. Multiple uniformly distributed static electricity removal rollers are sleeved outside each transmission shaft. The static electricity removal roller is composed of roller one and roller two. At the relative sides of each adjacent roller one and roller two, mounting blocks are fixedly installed. At both sides of each mounting block, clamping grooves are opened. At both sides of each mounting block, clamping mechanisms are provided. At one side of each clamping mechanism away from its corresponding static electricity removal roller, operating mechanisms are provided.

[0006] Preferably, a plurality of evenly distributed first conveying rollers are fixedly installed at one end of the frame far away from the two guiding mechanisms, and a plurality of evenly distributed second conveying rollers are fixedly installed at one end of the frame close to the two guiding mechanisms.

[0007] Preferably, the guiding mechanism includes two mounting seats and two cylinders. The bottoms of the two mounting seats are fixedly connected to the frame. The two cylinders are respectively fixedly installed on the sides of the two mounting seats away from each other. A moving frame is fixedly installed on one side of the telescopic shafts of the two cylinders. A plurality of evenly distributed guiding rods are fixedly installed on the tops of the two moving frames. The plurality of guiding rods are respectively located in the middle of every two adjacent second conveying rollers.

[0008] Preferably, the connecting mechanism includes a connecting seat and a driving shaft fixedly installed on the side of the connecting seat away from the transmission shaft. A fastening plate is fixedly connected to the top of the side of the connecting seat away from the driving shaft by bolts. Arc-shaped grooves are formed on the opposite sides of the fastening plate and the connecting seat.

[0009] Preferably, the clamping mechanism includes two rotating shafts and two brackets. The two rotating shafts are both fixedly installed inside the transmission shaft. A turning plate is rotatably installed on the outside of each of the two rotating shafts. A sliding seat is fixedly installed inside one end of each of the two turning plates close to the installation groove. A first sliding rod is fixedly installed at both ends inside each of the two sliding seats. A receiving plate is slidably installed on the outside of every two adjacent first sliding rods. A first spring is sleeved on the outside of each first sliding rod. A first limiting plate is rotatably connected to the opposite sides of the two receiving plates. A second limiting plate is rotatably connected to one end of each of the two first limiting plates away from their respective corresponding receiving plates. A support plate is rotatably connected to one end of each of the two second limiting plates close to their respective corresponding receiving plates. The two brackets are respectively slidably attached and installed inside the two turning plates. A first transmission rod is fixedly installed on the side of each of the two brackets away from their respective corresponding support plates. Discs are fixedly installed on the outside of the two rotating shafts. A first transmission groove is formed at one end of each of the two discs. The two first transmission rods are respectively movably installed inside the two first transmission grooves.

[0010] Preferably, T-shaped grooves are formed at one end of each of the two brackets close to their respective corresponding support plates. The two support plates are respectively slidably connected to the two brackets through the mutual cooperation of the two T-shaped grooves.

[0011] Preferably, the operating mechanism comprises two transmission grooves 2, two U-shaped frames and two sliding bars 2, the two transmission grooves 2 are respectively opened at one end of the two flip plates, two transmission rods 2 are movably installed inside the two transmission grooves 2, the two sliding bars 2 are symmetrically fixedly installed inside the transmission shaft, the two ends of the two U-shaped frames are respectively slidably sleeved on the outside of the two sliding bars 2, one end of the outside of the two sliding bars 2 is sleeved with a spring 2, the two ends of the two U-shaped frames are opened with transmission grooves 3, the two ends of the two transmission rods 2 are respectively slidably installed inside the corresponding transmission grooves 3, the two U-shaped frames are fixedly installed on the side close to each other, the opposite sides of the two racks are meshed with gears, the gears are rotatably installed inside the transmission shaft, and a push rod 1 is fixedly installed on one side of one of the U-shaped frames, and the push rod 1 extends to the outside of the transmission shaft.

[0012] Preferably, a fixing rod is fixedly installed at one end inside each of the transmission shafts, a push rod 2 is slidably sleeved outside each of the fixing rods, and a plurality of evenly distributed push plates are fixedly installed on the top of each of the push rods 2.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The static electricity removal roller is divided into roller one and roller two by setting a fixing mechanism and an operating mechanism. When the transmission shaft and the frame are fixed, one roller one or one roller two can be replaced separately, which solves the problem in the prior art that multiple static electricity removal rollers need to be disassembled before one of the static electricity removal rollers can be disassembled. The operation is simple and helps to save costs.

[0015] 2. After the two flip plates are in a horizontal state with one end away from the operating mechanism, the limit plate 1 and the limit plate 2 are in an isosceles triangle, and the connection is located inside the installation groove. This arrangement is convenient for the staff to determine the approximate position of the static electricity removal roller. In addition, when the static electricity removal roller drives the mounting block to slide inside the mounting groove, when it passes through the adjacent limit plate 1 and the limit plate 2, the limit plate 1 and the limit plate 2 are forced to be retracted into the transmission shaft. When the mounting block in the static electricity removal roller is offset from the limit plate 1 and the limit plate 2, the limit plate 1 and the limit plate 2 are reset under the action of the corresponding spring 1 to ensure the subsequent use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the limiting mechanism of the present invention;

[0018] Figure 3 A schematic diagram of one of the transmission shafts of the present invention;

[0019] Figure 4 It is a schematic diagram of the connection mechanism of the present invention;

[0020] Figure 5 A schematic diagram of one of the transmission shafts of the present invention in another direction;

[0021] Figure 6 is a cross-sectional view of a transmission shaft of the present invention;

[0022] Figure 7 It is a schematic diagram of the structure of the push rod 2 of the present invention;

[0023] Figure 8 A partial cross-sectional view of a transmission shaft of the present invention;

[0024] Figure 9 A schematic diagram of a static electricity removal roller according to the present invention;

[0025] Figure 10 It is a schematic diagram of two sets of fastening mechanisms and operating mechanisms of the present invention;

[0026] Figure 11 A schematic diagram of a set of fastening mechanisms and operating mechanisms of the present invention;

[0027] Figure 12 It is a partial schematic diagram of the clamping mechanism of the present invention;

[0028] Figure 13 It is a schematic diagram of the support structure of the present invention;

[0029] Figure 14 It is a schematic diagram of the structure of the sliding seat of the present invention;

[0030] Figure 15 It is a schematic diagram of the sliding seat of the present invention from another angle.

[0031] In the attached drawings, the components represented by the reference numerals are as follows: 1, frame; 2, conveying roller 1; 3, conveying roller 2; 4, mounting seat; 5, cylinder; 6, moving frame; 7, guide rod; 8, transmission shaft; 9, connecting seat; 10, driving shaft; 11, fastening plate; 12, arc groove; 13, mounting groove; 14, roller 1; 15, roller 2; 16, mounting block; 17, clamping groove; 18, rotating shaft; 19, flip plate; 20, sliding seat; 21, sliding rod 1; 22. Receiver plate; 23. Spring 1; 24. Limit plate 1; 25. Limit plate 2; 26. Support plate; 27. Bracket; 28. Transmission rod 1; 29. Disc; 30. Transmission slot 1; 31. Push plate; 32. T-slot; 33. Transmission slot 2; 34. U-shaped frame; 35. Slide bar 2; 36. Transmission rod 2; 37. Spring 2; 38. Transmission slot 3; 39. Rack; 40. Gear; 41. Push rod 1; 42. Fixing rod; 43. Push rod 2. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] The present invention provides a technical solution: as Figures 1-15 shown, a circuit board conveying device with a guiding structure, including a frame 1. At the bottom of one end of the frame 1, two guiding mechanisms are provided. At the corner of the frame 1, a plurality of uniformly distributed transmission shafts 8 are provided. At both ends of each transmission shaft 8, a connecting mechanism is provided. Installation grooves 13 are opened at both ends of each transmission shaft 8 (as Figure 6 shown). A plurality of uniformly distributed static elimination rollers are sleeved outside each transmission shaft 8. The static elimination rollers are composed of a roller one 14 and a roller two 15 (as Figure 9 shown). At the relative sides of each adjacent roller one 14 and roller two 15, mounting blocks 16 are fixedly installed. Clamping grooves 17 are opened on both sides of each mounting block 16. Clamping mechanisms are provided on both sides of each mounting block 16. On one side of each clamping mechanism away from its corresponding static elimination roller, an operating mechanism is provided.

[0034] At one end of the frame 1 away from the two guiding mechanisms, a plurality of uniformly distributed conveying rollers one 2 are fixedly installed. At one end of the frame 1 close to the two guiding mechanisms, a plurality of uniformly distributed conveying rollers two 3 are fixedly installed.

[0035] The guiding mechanism includes two mounting seats 4 and two cylinders 5. The bottoms of the two mounting seats 4 are fixedly connected to the frame 1. The two cylinders 5 are respectively fixedly installed on the sides of the two mounting seats 4 away from each other. On one side of the telescopic shafts of the two cylinders 5, moving frames 6 are fixedly installed. On the tops of the two moving frames 6, a plurality of uniformly distributed guiding rods 7 are fixedly installed. The plurality of guiding rods 7 are respectively located in the middle of each adjacent two conveying rollers two 3.

[0036] The connecting mechanism includes a connecting seat 9 and a driving shaft 10 fixedly installed on the side of the connecting seat 9 away from the transmission shaft 8. On the top of the side of the connecting seat 9 away from the driving shaft 10, a fastening plate 11 is fixedly connected by bolts. Arc-shaped grooves 12 are opened on the relative sides of the fastening plate 11 and the connecting seat 9.

[0037] The clamping mechanism includes two rotating shafts 18 and two brackets 27 (in combination with Figure 11 and Figure 12), both rotating shafts 18 are fixedly installed inside the transmission shaft 8. Rotating plates 19 are rotatably installed outside both rotating shafts 18. Inside one end of both rotating plates 19 close to the installation groove 13, sliding seats 20 are fixedly installed. At both ends inside the two sliding seats 20, first sliding rods 21 are fixedly installed. The outer sides of every two adjacent first sliding rods 21 are jointly slidably installed with a bearing plate 22. A first spring 23 is sleeved outside each first sliding rod 21. The opposite sides of the two bearing plates 22 are rotatably connected with first limiting plates 24. One end of both first limiting plates 24 away from their respective corresponding bearing plates 22 is rotatably connected with second limiting plates 25. One end of both second limiting plates 25 close to their respective corresponding bearing plates 22 is rotatably connected with support plates 26. Two brackets 27 are respectively slidably and fittingly installed inside the two rotating plates 19. One side of the two brackets 27 away from their respective corresponding support plates 26 is fixedly installed with a first transmission rod 28. Discs 29 are fixedly installed outside both rotating shafts 18. A first transmission groove 30 is opened at one end of both discs 29. The two first transmission rods 28 are respectively movably installed inside the two first transmission grooves 30.

[0038] At one end of the two brackets 27 close to their respective corresponding support plates 26, T-shaped grooves 32 are opened. The two support plates 26 are respectively slidably connected with the two brackets 27 through the mutual cooperation of the two T-shaped grooves 32.

[0039] The operating mechanism includes two second transmission grooves 33, two U-shaped frames 34 and two second sliding rods 35. The two second transmission grooves 33 are respectively opened at one end of the two rotating plates 19. Two second transmission rods 36 are movably installed inside the two second transmission grooves 33. The two second sliding rods 35 are symmetrically and fixedly installed inside the transmission shaft 8. The two ends of the two U-shaped frames 34 are respectively slidably sleeved outside the two second sliding rods 35. A second spring 37 is sleeved outside one end of the two second sliding rods 35. Transmission grooves 38 are opened at both ends of the two U-shaped frames 34. The two ends of the two second transmission rods 36 are respectively slidably installed inside the transmission grooves 38 corresponding to them. On the relatively close sides of the two U-shaped frames 34, racks 39 are fixedly installed. The opposite sides of the two racks 39 are meshed with a gear 40. The gear 40 is rotatably installed inside the transmission shaft 8. One side of one of the U-shaped frames 34 is fixedly installed with a first push rod 41. The first push rod 41 extends outside the transmission shaft 8.

[0040] One end inside each transmission shaft 8 is fixedly installed with a fixed rod 42. A second push rod 43 is slidably sleeved outside each fixed rod 42. At the top of each second push rod 43, a plurality of uniformly distributed push plates 31 are fixedly installed.

[0041] Working principle: When multiple static eliminator rollers are respectively installed outside multiple transmission shafts 8, the movement process of one of the clamping mechanisms and the operating mechanism is as follows: First, push the first push rod 41. The first push rod 41 drives the U-shaped frame 34 connected to it to move under force. The U-shaped frame 34 pushes the rack 39 connected to it to move. Under the action of the gear 40, another rack 39 drives the corresponding U-shaped frame 34 to move. The two U-shaped frames 34 move outside the two second slide rods 35 at the same time and squeeze the two second springs 37. The two second transmission rods 36 slide correspondingly inside their respective corresponding second transmission grooves 33 and third transmission grooves 38. The two turning plates 19 rotate around their respective corresponding rotating shafts 18. While the two turning plates 19 rotate, the first transmission rods 28 in the two brackets 27 slide inside their respective corresponding first transmission grooves 30. The two first transmission rods 28 are forced to move towards the centers of their respective corresponding discs 29. The two brackets 27 respectively pull the two second limiting plates 25 to move. When the ends of the two turning plates 19 away from the operating mechanism rotate to the horizontal position, the two second limiting plates 25 are transformed from a parallel state to an inclined state at this time. The two second limiting plates 25 cooperate with the two first limiting plates 24 to form two isosceles triangles. At this time, the mounting blocks 16 respectively connected to the first roller 14 and the second roller 15 can be completely inserted into the two mounting grooves 13. The two mounting blocks 16 are in contact with the inside of the two mounting grooves 13, so that the two mounting blocks 16 are located between their respective corresponding clamping mechanisms. Then, release the first push rod 41. Under the action of the second spring 37, the two turning plates 19 reset and push the mounting block 16 to be centered between the two turning plates 19. At the same time, the two second limiting plates 25 both move to the parallel state, and the sides of the two second limiting plates 25 away from their respective corresponding first limiting plates 24 are respectively in contact with the clamping grooves 17 on both sides of the mounting block 16, thereby completing the installation of the first roller 14 or the second roller 15 and preventing the first roller 14 or the second roller 15 from disengaging from the mounting groove 13 in the vertical direction. The installation steps of the other multiple static eliminator rollers are the same as those described above. By dividing the static eliminator rollers into the first roller 14 and the second roller 15, when the transmission shaft 8 is fixed to the frame 1, a certain first roller 14 or second roller 15 can be replaced separately, solving the problem in the prior art that multiple static eliminator rollers need to be disassembled to disassemble one of the static eliminator rollers. The operation is simple and is beneficial to cost savings.

[0042] After the installation of multiple static electricity removal rollers is completed, multiple transmission shafts 8 are installed in the frame 1. The installation process of one transmission shaft 8 is as follows: the two ends of the transmission shaft 8 are respectively placed in the arc grooves 12 in the corresponding connection seats 9, and then the two fastening plates 11 are respectively fixed to the tops of the two connection seats 9 by bolts. The installation steps of the other multiple transmission shafts 8 are the same as above. By connecting multiple conveying rollers 1 2, multiple conveying rollers 2 3 and multiple driving shafts 10 to corresponding driving devices and rotating the multiple conveying rollers 1 2, multiple conveying rollers 2 3 and multiple driving shafts 10, the circuit board can be conveyed. The circuit board first passes through the multiple conveying rollers 1 2 and enters the top of the multiple transmission shafts 8, and then is conveyed to the top of the multiple conveying rollers 2 3 by multiple static electricity removal rollers. When passing through the multiple static electricity removal rollers, the circuit board contacts the surfaces of the multiple static electricity removal rollers, and the static electricity on the circuit board is transmitted to the earth, thereby removing the static electricity on the circuit board. When conveyed to the ends of the multiple conveying rollers 2 3, by starting the two cylinders 5, the telescopic shafts of the two cylinders 5 are extended, pushing the two moving frames 6 closer to each other, so that the multiple guide rods 7 are centered on the circuit board, and the conveying route of the circuit board is guided, so that the circuit board enters the next process for processing.

[0043] When one of the rollers 14 needs to be replaced, in order to facilitate its replacement, the roller 14 that needs to be replaced is rotated upward, and then the corresponding push rod 1 41 is pushed, and the two flip plates 19 drive the corresponding limit plates 1 24 and limit plates 2 25 to disengage from the two fixing grooves 17, and then the mounting block 16 connected to the new roller 14 is placed between the two flip plates 19, and then the push rod 1 41 is released. After the two flip plates 19 are in a horizontal state away from one end of the operating mechanism, the adjacent limit plate 1 24 and the limit plate 25 are in an isosceles triangle, and the connection between the adjacent limit plate 1 24 and the limit plate 25 is inside the corresponding mounting groove 13. This arrangement is convenient for the staff to determine the approximate position of the static electricity removal roller. When the roller 14 drives the mounting block 16 connected to it to slide inside the mounting groove 13, passing through the adjacent limit plate 1 24 and the limit plate 25, the limit plate 1 24 and the limit plate 25 are forced to slide along the corresponding two slide bars 1 21 and squeeze the corresponding spring 1 23. The limit plate 1 24 and the limit plate 25 are forced to be retracted into the sliding seat 20. When the mounting block 16 in the roller 14 is staggered with the limit plate 1 24 and the limit plate 25, the limit plate 1 24 and the limit plate 25 are reset under the action of the corresponding spring 1 23 to ensure the subsequent use effect. The steps for replacing the remaining roller 1 14 and roller 2 15 are the same as those described above.

[0044] By arranging a second push rod 43 inside each transmission shaft 8 and pushing one of the second push rods 43, the second push rod 43 moves along the corresponding fixed rod 42, and multiple push plates 31 at its top act on the multi-rod first push rod 41 in the transmission shaft 8 simultaneously, so that multiple static elimination rollers can be disassembled simultaneously.

[0045] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0046] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit board conveying device with a guiding structure, comprising a frame (1), characterized in that: At the bottom of one end of the frame (1), two guiding mechanisms are provided. At the corner of the frame (1), multiple uniformly distributed transmission shafts (8) are provided. At both ends of each transmission shaft (8), connection mechanisms are provided. Installation grooves (13) are formed at both ends of each transmission shaft (8). Multiple uniformly distributed static elimination rollers are sleeved outside each transmission shaft (8). The static elimination roller is composed of a roller one (14) and a roller two (15). At the opposite sides of each adjacent roller one (14) and roller two (15), mounting blocks (16) are fixedly installed. Clamping grooves (17) are formed on both sides of each mounting block (16). Clamping mechanisms are provided on both sides of each mounting block (16). On one side of each clamping mechanism away from its corresponding static elimination roller, an operating mechanism is provided.

2. The circuit board conveying device with a guiding structure according to claim 1, characterized in that: At one end of the frame (1) away from the two guiding mechanisms, multiple uniformly distributed conveying rollers one (2) are fixedly installed. At one end of the frame (1) close to the two guiding mechanisms, multiple uniformly distributed conveying rollers two (3) are fixedly installed.

3. The circuit board conveying device with a guiding structure according to claim 2, characterized in that: The guiding mechanism includes two mounting seats (4) and two cylinders (5). The bottoms of the two mounting seats (4) are fixedly connected to the frame (1). The two cylinders (5) are respectively fixedly installed on the opposite sides of the two mounting seats (4) away from each other. On one side of the telescopic shafts of the two cylinders (5), moving frames (6) are fixedly installed. On the tops of the two moving frames (6), multiple uniformly distributed guiding rods (7) are fixedly installed. The multiple guiding rods (7) are respectively located in the middle of each adjacent two conveying rollers two (3).

4. The circuit board conveying device with a guiding structure according to claim 1, characterized in that: The connection mechanism includes a connection seat (9) and a driving shaft (10) fixedly installed on the side of the connection seat (9) away from the transmission shaft (8). On the top of the side of the connection seat (9) away from the driving shaft (10), a fastening plate (11) is fixedly connected by bolts. Arc-shaped grooves (12) are formed on the opposite sides of the fastening plate (11) and the connection seat (9).

5. The circuit board conveying device with a guiding structure according to claim 1, wherein: The clamping mechanism includes two rotating shafts (18) and two brackets (27). Both of the two rotating shafts (18) are fixedly installed inside the transmission shaft (8). The outer parts of both of the two rotating shafts (18) are rotatably installed with turnover plates (19). Inside one ends of both of the two turnover plates (19) close to the installation groove (13), sliding seats (20) are fixedly installed. At both ends inside both of the two sliding seats (20), first sliding rods (21) are fixedly installed. A receiving plate (22) is jointly and slidably installed outside every two adjacent first sliding rods (21). A first spring (23) is sleeved outside each of the first sliding rods (21). One ends of the two receiving plates (22) opposite to each other are rotatably connected with first limiting plates (24). One ends of both of the two first limiting plates (24) away from their respective corresponding receiving plates (22) are rotatably connected with second limiting plates (25). One ends of both of the two second limiting plates (25) close to their respective corresponding receiving plates (22) are rotatably connected with support plates (26). The two brackets (27) are respectively slidably and fittingly installed inside the two turnover plates (19). On one sides of the two brackets (27) away from their respective corresponding support plates (26), first transmission rods (28) are fixedly installed. Discs (29) are fixedly installed outside both of the two rotating shafts (18). Transmission grooves one (30) are respectively opened at one ends of both of the two discs (29). The two first transmission rods (28) are respectively movably installed inside the two transmission grooves one (30).

6. The circuit board conveying device with a guiding structure according to claim 5, wherein: T-shaped grooves (32) are respectively opened at one ends of the two brackets (27) close to their respective corresponding support plates (26). The two support plates (26) are respectively slidably connected with the two brackets (27) through the mutual cooperation of the two T-shaped grooves (32).

7. The circuit board conveying device with a guiding structure according to claim 1, wherein: The operating mechanism includes two transmission grooves two (33), two U-shaped frames (34) and two second sliding rods (35). The two transmission grooves two (33) are respectively opened at one ends of the two turnover plates (19). Two second transmission rods (36) are movably installed inside both of the two transmission grooves two (33). The two second sliding rods (35) are symmetrically fixedly installed inside the transmission shaft (8). The two ends of the two U-shaped frames (34) are respectively slidably sleeved outside the two second sliding rods (35). Second springs (37) are sleeved outside one ends of the two second sliding rods (35). Transmission grooves three (38) are respectively opened at the two ends of the two U-shaped frames (34). The two ends of the two second transmission rods (36) are respectively slidably installed inside their respective corresponding transmission grooves three (38). Rack bars (39) are fixedly installed on one sides of the two U-shaped frames (34) close to each other. A gear (40) is meshed with the opposite sides of the two rack bars (39). The gear (40) is rotatably installed inside the transmission shaft (8). A first push rod (41) is fixedly installed on one side of one of the two U-shaped frames (34). The first push rod (41) extends outside the transmission shaft (8).

8. A circuit board conveying device with a guiding structure according to claim 1, characterized in that: One end inside each of the transmission shafts (8) is fixedly installed with a fixing rod (42), and a second push rod (43) is slidably sleeved outside each of the fixing rods (42). A plurality of uniformly distributed push plates (31) are fixedly installed at the top of each of the second push rods (43).

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