Circuit board translation temporary storage device

Abstract

The invention discloses a circuit board translation temporary storage device, and relates to the field of material board processing, the circuit board translation temporary storage device comprises material racks, a conveying line, material rack lifting mechanisms, a lower lifting transverse moving mechanism and an upper lifting transverse moving mechanism, the material rack lifting mechanisms are sequentially arranged in the conveying direction, the material rack lifting mechanisms drive the material racks to ascend or descend, and the conveying directions of the adjacent material rack lifting mechanisms are opposite; the lower lifting transverse moving mechanism is arranged under the conveying line, the lower lifting transverse moving mechanism controls the material frame to move in the first direction and lifts the material frame to the position over the conveying line, and the upper lifting transverse moving mechanism is arranged above the material frame lifting mechanism and controls the material frame to move to the other lifting assembly in the second direction. When follow-up equipment is shut down accidentally, the material plates can be temporarily stored and taken out without shutdown of the conveying line, and the stacked material plates are stored and taken out according to the conveying sequence. The material plates can be prevented from entering equipment which is shut down accidentally, and the conveying sequence is prevented from being disordered when the material plates are temporarily stored and taken out.

Description

Technical Field

[0001] The invention relates to the field of circuit board processing, and in particular to a circuit board translation temporary storage device. Background Art

[0002] In the production process of multi-layer circuit boards, it is necessary to perform interlayer lamination after manufacturing the inner layer circuits, so as to press the inner layer circuits with different circuit patterns into a circuit board structure that meets the design requirements. Before the lamination process, pre-stacking is an important work link. Pre-stacking refers to stacking the pallets on the top and bottom layers and the material boards on the middle layer in sequence, where the material boards are stacked in sequence after the inner layer boards and PP sheets are arranged. When using automated equipment for lamination, the material boards to be pre-stacked need to be placed on the conveyor line in sequence. Therefore, the material boards will be conveyed in sequence on the conveyor line in the order of stacking, and multiple groups of material boards will appear on the conveyor line.

[0003] Due to the preparation and processing stages of the equipment in production, as well as some unexpected situations in production, the material boards to be pre-stacked on the conveyor line need to be temporarily stored for a period of time. When storing PCB boards, the material boards are generally transported to various storage racks for storage for a period of time. However, due to the capacity of the storage racks themselves, multiple storage racks are required. However, due to the stacking order, the material boards need to be taken out from different storage racks in sequence. It takes time to confirm the order of the storage racks and put the storage racks into the temporary storage machine in sequence before the material boards can be placed back on the conveyor line in sequence. Sequence errors are prone to occur, resulting in a large number of circuit boards being scrapped.

[0004] Therefore, a circuit board translation temporary storage device is provided, which can realize the storage and removal of material boards without stopping the conveyor line, and the storage and removal of material boards are carried out in the conveying order. Summary of the invention

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: a circuit board translation temporary storage device, comprising: Material rack, used to support material plates; A conveyor line is used to convey material plates. The conveyor line is provided with a plurality of workstations along the conveying direction. A through space is provided inside the conveyor line through which a feeding rack passes in a vertical direction. A material rack lifting mechanism, wherein the material rack lifting mechanisms are sequentially arranged along the conveying direction of the conveyor line, and the material rack lifting mechanisms drive the material rack to rise or fall in the vertical direction, and the conveying directions of adjacent material rack lifting mechanisms are opposite, and each of the material rack lifting mechanisms includes a driving device and at least one group of lifting components for conveying the material rack, and each of the lifting components includes a symmetrically arranged first annular element and a second annular element, and the first annular element and the second annular element are respectively arranged on both sides of the conveyor line, and the first annular element and the second annular element are both transmission-connected to the driving device, and the driving device drives the first annular element and the second annular element to rotate, and the first annular element and the second annular element rotate in opposite directions; A lower lifting and transverse movement mechanism, wherein the lower lifting and transverse movement mechanism is arranged directly below the conveyor line, and the lower lifting and transverse movement mechanism controls the material rack to move along a first direction and lifts it to directly above the conveyor line, and the first direction is arranged horizontally; An upper lifting and transverse movement mechanism, wherein the upper lifting and transverse movement mechanism is arranged above the material rack lifting mechanism, a temporary storage space is arranged between the upper lifting and transverse movement mechanism and the conveyor line, and the upper lifting and transverse movement mechanism controls the material rack to move to another lifting assembly along a second direction, wherein the second direction is arranged horizontally and opposite to the first direction; The upper lifting and lateral moving mechanism and the lower lifting and lateral moving mechanism both include a horizontal moving mechanism, a base, a lifting device, and a material rack acquisition unit. The base is arranged on the horizontal moving mechanism, and the horizontal moving mechanism drives the base to move in a horizontal direction. The base, the lifting device, and the material rack acquisition unit are connected in sequence along the direction toward the conveyor line.

[0006] Preferably, the material rack lifting mechanism also includes a first connecting member, which is evenly spaced and fixed on the outer circumferential surface of each of the first annular elements. The material rack includes a frame body and a second connecting member, which is spaced at both ends of the frame body, and the lower end of the second connecting member is detachably disposed on the first connecting member.

[0007] Preferably, the conveyor line includes a first motor, a driving shaft, a driven shaft, a first roller group and a second roller group, the first roller group and the second roller group are symmetrically arranged, the driving shaft is transmission connected to the first motor, the first roller group and the second roller group are transmission connected to the driving shaft and the driven shaft at both ends, a first gap is provided between the first roller group and the second roller group, the first roller group and the second roller group each include a plurality of rollers, adjacent rollers are transmission connected, a second gap is provided between adjacent rollers, the first gap is connected to the second gap to form a through space; when the material rack is conveyed in the vertical direction, the material rack passes through the first gap and the second gap.

[0008] Preferably, the frame includes a main beam, a sub-beam, and a rod. The sub-beam is vertically arranged on the main beam, the second connecting member is arranged at both ends of the sub-beam, and a plurality of the rods are detachably arranged on the main beam. The main beam of each material rack is projected inside the first gap along the vertical direction. When the material rack is transported along the vertical direction, the main beam passes through the first gap, the rod passes through the second gap, and the sub-beam and the second connecting member pass through the second gap.

[0009] When the rack is rising or falling, the main beam of the rack will pass through the first gap, and the rods, sub-beams and the second connecting piece at the end of the sub-beam of the rack will pass through the corresponding second gap, so that the rack will finally pass through the conveyor line.

[0010] Preferably, the material rack acquisition unit includes a frame and a third connecting member, the third connecting member is arranged at both ends of the frame, and the upper end of the second connecting member is detachably connected to the third connecting member; when the material rack acquisition unit moves in the vertical direction, the third connecting member is projected inside the second gap.

[0011] When the rack is rising or falling, the main beam of the rack will pass through the first gap, and the rods, sub-beams and the second connecting piece at the end of the sub-beam of the rack will pass through the corresponding second gap, so that the rack will finally pass through the conveyor line.

[0012] Preferably, the second connecting member is a hook, the second connecting member includes a main body and a second plate, the main body is provided with a groove, the second plate is arranged at one end of the groove, the first connecting member is a U-shaped plate, both ends of the first connecting member are fixedly arranged on the first annular element, the first connecting member is arranged inside the groove, and the second plate is arranged inside the first connecting member.

[0013] Preferably, the third connecting member is an electromagnet, and the third connecting member is connected to the second connecting member through magnetic flux lines.

[0014] Preferably, the driving device includes a second motor, a first shaft, a second shaft, a third shaft, a transmission wheel, a bearing, a fourth annular element and a third annular element. The third shaft is arranged between the first shaft and the second shaft, the third shaft is transmission-connected to the second motor, the first annular element and the second annular element are respectively transmission-connected to the first shaft and the second shaft, the bearing is arranged on the first shaft, the transmission wheel is arranged on the third shaft, the first shaft and the third shaft are transmission-connected through the third annular element, the second shaft and the third shaft are transmission-connected through the fourth annular element, one end of the third annular element is rotatably connected to the first shaft through a bearing, the other end of the third annular element rotates synchronously with the second shaft, and the transmission wheel is arranged on the outside of the third annular element and transmission-connected to the third annular element.

[0015] Preferably, the first annular element, the second annular element and the third annular element are all transmission belts or transmission chains.

[0016] Preferably, the horizontal moving mechanism includes a bracket, a servo motor and a belt, the base is slidably arranged inside the bracket, the belt is arranged on both sides of the base, the belt is transmission-connected to the servo motor, the base is fixedly connected to the belt, and the lifting device is a pneumatic cylinder or an electric cylinder.

[0017] Preferably, it also includes a positioning device, which is used to block and position the material plate. The positioning device includes a cylinder and a blocking member, and the blocking member is a baffle or a block.

[0018] The working principle of the present invention is: When the material plates need to be stored in sequence, the lower lifting and transverse movement mechanism is started, and the horizontal movement mechanism of the lower lifting and transverse movement mechanism drives the rack acquisition unit to move horizontally, and the rack acquisition unit supporting the material rack is moved to the bottom of the material plate, and then the lifting device of the lower lifting and transverse movement mechanism controls the rack acquisition unit to lift. Since the rack and the third connecting member can pass through the through space reserved on the conveyor line, the rack will pass through the through space and move above the conveyor line during the lifting process, and the material plate will automatically fall on the rack, and the rack supporting the material plate will move upward to the position of the rack lifting mechanism.

[0019] The material rack lifting mechanism is started, and the first annular element and the second annular element are driven to rotate by the driving device. When the first annular element and the second annular element rotate, the first connecting member located at one end of the first annular element and the second annular element close to the material rack will rise. During the rising process, the first connecting member will continuously approach and finally contact the second connecting member located at the end of the material rack. The end of the material rack will be hooked on the first connecting member through the second connecting member. The material rack is lifted by the first annular element and the second annular element, and the material rack is stored in sequence by the material rack lifting mechanism.

[0020] When the material rack lifting mechanism is full, the upper lifting and transverse movement mechanism is started, and the horizontal movement mechanism of the upper lifting and transverse movement mechanism drives the material rack acquisition unit to move horizontally. The lifting device of the upper lifting and transverse movement mechanism controls the material rack acquisition unit to descend. The third connecting piece at the end of the material rack acquisition unit will continue to approach and eventually contact the upper end of the second connecting piece at the end of the material rack during the descent process. The material rack can be sucked or released by starting or closing the third connecting piece. The material rack is moved to the adjacent material rack lifting mechanism through the upper lifting and transverse movement mechanism. Since the adjacent material rack lifting mechanisms have opposite conveying directions, the adjacent material rack lifting mechanisms control the material rack to descend. When the material rack descends to the top of the conveyor line, the material rack lifting mechanism stops descending.

[0021] When the material plate needs to be taken out, the lower lifting and transverse movement mechanism is started, and the horizontal movement mechanism of the lower lifting and transverse movement mechanism drives the rack acquisition unit to move horizontally, and moves the rack acquisition unit that does not support the rack to the bottom of the rack. The rack lifting mechanism is started, and the rack lifting mechanism controls the rack where the material plate is stored to continue to descend. The rack will contact the rack acquisition unit during the descent process. Then the lifting device of the lower lifting and transverse movement mechanism controls the rack acquisition unit to descend. Since the rack and the third connecting member can pass through the through space reserved on the conveyor line, the rack will pass through the through space and move to the bottom of the conveyor line during the descent process, and the material plate will automatically fall on the conveyor line.

[0022] The beneficial effects of the present invention are as follows: when material plates need to be stored in sequence, the lower lifting and transverse movement mechanism sequentially supplies material racks that do not support material plates to the material rack lifting mechanism, and the material racks will pass through the conveyor line and lift the material plates. The material rack lifting mechanism and the upper lifting and transverse movement mechanism sequentially store the material racks carrying material plates in the temporary storage space. When the material plates need to be taken out, the material rack lifting mechanism will continue to descend and transport the material racks carrying material plates to the lower lifting and transverse movement mechanism. The material racks will pass through the conveyor line and be replenished to the lower lifting and transverse movement mechanism, and the material plates will fall back on the conveyor line.

[0023] When the subsequent equipment stops unexpectedly, the conveyor line can be kept running without stopping to temporarily store and remove the material boards, and the stacked material boards are stored and removed in the conveying order. This can prevent the material boards from entering the equipment that stops unexpectedly, and avoid disrupting the conveying order when temporarily storing and removing the material boards. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings further illustrate the present invention, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention.

[0025] Figure 1 A schematic diagram of the structure of a circuit board translation temporary storage device provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a material rack provided in one embodiment of the present invention; Figure 3 A schematic diagram of the structure of a conveyor line provided by an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a material rack lifting mechanism provided in one embodiment of the present invention; Figure 5 A schematic diagram of the structure of a lower lifting and lateral movement mechanism provided by an embodiment of the present invention; Figure 6 A schematic diagram of the structure of an upward lifting and horizontal moving mechanism provided by an embodiment of the present invention; Figure 7 for Figure 4 An enlarged view of the A part in FIG. Figure 8 for Figure 2 An enlarged view of part B in FIG. Fig. 9 for Figure 6 Magnified view of part C in FIG.

[0026] Figure numerals: 1: frame; 2: material rack; 3: conveyor line; 4: material rack lifting mechanism; 41: first annular element; 42: second annular element; 43: driving device; 5: lower lifting and transverse moving mechanism; 6: upper lifting and transverse moving mechanism. DETAILED DESCRIPTION

[0027] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0028] It should be noted that, in the present invention, when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element at the same time, unless otherwise stated. The directional words used, such as "upper, lower, left, right" generally refer to the position of the element. Figure 1 "Inside and outside" refer to the inside and outside of a specific outline. "Far and near" refer to the far and near relative to a certain component.

[0029] like Figure 1-Figure 9 As shown in , a circuit board translation temporary storage device provided by an embodiment of the present invention includes: Rack 1; Material rack 2, used for supporting material plates; The conveyor line 3 is used to convey the material plate. The conveyor line 3 is provided with a plurality of stations along the conveying direction. The conveyor line 3 is provided with a through space through which the feeding rack 2 passes in the vertical direction. A material rack lifting mechanism 4, wherein the material rack lifting mechanism 4 is sequentially arranged along the conveying direction of the conveyor line 3, and the material rack lifting mechanism 4 drives the material rack 2 to rise or fall in the vertical direction, and the conveying directions of adjacent material rack lifting mechanisms 4 are opposite, and each of the material rack lifting mechanisms 4 includes a driving device 43 and at least one group of lifting components for conveying the material rack 2, and each of the lifting components includes a symmetrically arranged first annular element 41 and a second annular element 42, and the first annular element 41 and the second annular element 42 are respectively arranged on both sides of the conveyor line 3, and the first annular element 41 and the second annular element 42 are both transmission-connected to the driving device 43, and the driving device 43 drives the first annular element 41 and the second annular element 42 to rotate, and the first annular element 41 and the second annular element 42 rotate in opposite directions; The first annular element 41 and the second annular element 42 are preferably transmission chains, and the upper and lower ends of the first annular element 41 are rotatably disposed at the upper and lower ends of the frame 1 through sprockets, and the upper and lower ends of the second annular element 42 are rotatably disposed at the upper and lower ends of the frame 1 through sprockets; A lower lifting and transverse movement mechanism 5, wherein the lower lifting and transverse movement mechanism 5 is arranged directly below the conveyor line 3, and the lower lifting and transverse movement mechanism 5 controls the material rack 2 to move along a first direction and lifts it to directly above the conveyor line 3, and the first direction is arranged horizontally; An upper lifting and transverse movement mechanism 6, wherein the upper lifting and transverse movement mechanism 6 is arranged above the material rack lifting mechanism 4, and a temporary storage space is provided between the upper lifting and transverse movement mechanism 6 and the conveyor line 3, and the upper lifting and transverse movement mechanism 6 controls the material rack 2 to move to another lifting assembly along a second direction, and the second direction is arranged horizontally and opposite to the first direction; The driving device 43 is arranged at the lower end of the frame 1, and the upper lifting and lateral movement mechanism 6, the conveying line 3, the lower lifting and lateral movement mechanism 5 and the driving device 43 are arranged in sequence from top to bottom; The upper lifting and transverse moving mechanism 6 and the lower lifting and transverse moving mechanism 5 both include a horizontal moving mechanism, a base, a lifting device, and a material rack 2 acquisition unit. The base is arranged on the horizontal moving mechanism, and the horizontal moving mechanism drives the base to move in a horizontal direction. The base, the lifting device, and the material rack 2 acquisition unit are connected in sequence along the direction toward the conveyor line 3.

[0030] The material rack lifting mechanism 4 also includes a first connecting member, which is evenly spaced and fixed to the outer circumferential surface of each of the first annular elements 41. The material rack 2 includes a frame body and a second connecting member, which is spaced at both ends of the frame body, and the lower end of the second connecting member is detachably mounted on the first connecting member.

[0031] The conveyor line 3 includes a first motor, a driving shaft, a driven shaft, a first roller group and a second roller group. The first roller group and the second roller group are symmetrically arranged. The driving shaft is connected to the first motor by transmission. Both ends of the first roller group and the second roller group are connected to the driving shaft and the driven shaft by transmission. A first gap is provided between the first roller group and the second roller group. The first roller group and the second roller group both include a plurality of rollers. Adjacent rollers are connected by transmission. A second gap is provided between adjacent rollers. The first gap is connected to the second gap to form a through space. When the material rack 2 is transported in the vertical direction, the material rack 2 penetrates the first gap and the second gap.

[0032] The frame includes a main beam, a sub-beam, and a rod. The sub-beam is vertically arranged on the main beam, the second connecting member is arranged at both ends of the sub-beam, and several rods are detachably arranged on the main beam. The main beam of each material rack 2 is projected inside the first gap along the vertical direction; when the material rack 2 is transported along the vertical direction, the main beam passes through the first gap, the rod passes through the second gap, and the sub-beam and the second connecting member pass through the second gap.

[0033] When the rack 2 is rising or falling, the main beam of the rack 2 will pass through the first gap, and the rods, sub-beams and the second connecting piece at the end of the sub-beam of the rack 2 will pass through the corresponding second gap, so that the rack 2 will finally pass through the conveyor line 3.

[0034] The material rack 2 acquisition unit includes a frame and a third connecting member, the third connecting member is arranged at both ends of the frame, and the upper end of the second connecting member is detachably connected to the third connecting member; when the material rack 2 acquisition unit moves along the vertical direction, the third connecting member is projected inside the second gap.

[0035] When the rack 2 is rising or falling, the main beam of the rack 2 will pass through the first gap, and the rods, sub-beams and the second connecting piece at the end of the sub-beam of the rack 2 will pass through the corresponding second gap, so that the rack 2 will finally pass through the conveyor line 3.

[0036] In some embodiments, the first annular element 41 and the second annular element 42 are transmission belts. The upper and lower ends of the first annular element 41 are rotatably disposed on the upper and lower ends of the frame 1 through pulleys, and the upper and lower ends of the second annular element 42 are rotatably disposed on the upper and lower ends of the frame 1 through pulleys.

[0037] The second connecting member is a hook, and the second connecting member includes a main body and a second plate. The main body is provided with a groove, and the second plate is arranged at one end of the groove. The first connecting member is a U-shaped plate, and both ends of the first connecting member are fixedly arranged on the first annular element 41. The first connecting member is arranged inside the groove, and the second plate is arranged inside the first connecting member.

[0038] The third connecting member is an electromagnet, and the third connecting member is connected to the second connecting member through magnetic flux lines.

[0039] The driving device 43 includes a second motor, a first shaft, a second shaft, a third shaft, a transmission wheel, a bearing, a fourth annular element and a third annular element. The third shaft is arranged between the first shaft and the second shaft, and the third shaft is transmission-connected to the second motor. The first annular element 41 and the second annular element 42 are transmission-connected to the first shaft and the second shaft respectively. The bearing is arranged on the first shaft, and the transmission wheel is arranged on the third shaft. The first shaft and the third shaft are transmission-connected through the third annular element, and the second shaft and the third shaft are transmission-connected through the fourth annular element. One end of the third annular element is rotatably connected to the first shaft through a bearing, and the other end of the third annular element rotates synchronously with the second shaft. The transmission wheel is arranged on the outside of the third annular element and transmission-connected to the third annular element.

[0040] The third annular element is preferably a transmission chain. In some embodiments, the third annular element is a transmission belt.

[0041] In one embodiment, the driving device 43 is disposed at the upper end of the frame 1, and the driving device 43, the upper lifting and transverse movement mechanism 6, the conveying line 3 and the lower lifting and transverse movement mechanism 5 are disposed in sequence from top to bottom.

[0042] In one embodiment, the horizontal moving mechanism includes a bracket, a servo motor and a belt. The base is slidably arranged inside the bracket, the belt is arranged on both sides of the base, the belt is transmission-connected to the servo motor, the base is fixedly connected to the belt, and the lifting device is a pneumatic cylinder or an electric cylinder.

[0043] In one embodiment, the horizontal moving mechanism is a linear module. The base is arranged on a slide of the linear module. The lifting device is arranged on the base. The lifting device is a pneumatic cylinder or an electric cylinder.

[0044] In one embodiment, compared with the circuit board translation temporary storage device in the above embodiment, the difference is that the circuit board translation temporary storage device further includes: The positioning device is used to block and position the material plate so that the material plate stops directly above the material rack 2 when the material rack 2 is lifted.

[0045] In one embodiment, the positioning device includes a cylinder and a blocking member, and the blocking member is a baffle or a block.

[0046] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. 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 should be considered as the scope of this specification.

Claims

1. A circuit board translation temporary storage device, characterized in that: include: Material rack, used to support material plates; A conveyor line is used to convey material plates. The conveyor line is provided with a plurality of workstations along the conveying direction. A through space is provided inside the conveyor line through which a feeding rack passes in a vertical direction. A material rack lifting mechanism, wherein the material rack lifting mechanisms are sequentially arranged along the conveying direction of the conveyor line, and the material rack lifting mechanisms drive the material rack to rise or fall in the vertical direction, and the conveying directions of adjacent material rack lifting mechanisms are opposite, and each of the material rack lifting mechanisms includes a driving device and at least one set of lifting components for conveying the material rack, and each of the lifting components includes a symmetrically arranged first annular element and a second annular element, and the first annular element and the second annular element are respectively arranged on both sides of the conveyor line, and the first annular element and the second annular element are both connected to the driving device by transmission, and the driving device drives the first annular element and the second annular element to rotate; A lower lifting and transverse movement mechanism, wherein the lower lifting and transverse movement mechanism is arranged directly below the conveyor line, and the lower lifting and transverse movement mechanism controls the material rack to move along a first direction and lifts it to directly above the conveyor line, and the first direction is arranged horizontally; An upper lifting and transverse movement mechanism, wherein the upper lifting and transverse movement mechanism is arranged above the material rack lifting mechanism, a temporary storage space is arranged between the upper lifting and transverse movement mechanism and the conveyor line, and the upper lifting and transverse movement mechanism controls the material rack to move to another lifting assembly along a second direction, wherein the second direction is arranged horizontally and opposite to the first direction; The upper lifting and lateral moving mechanism and the lower lifting and lateral moving mechanism both include a horizontal moving mechanism, a base, a lifting device, and a material rack acquisition unit. The base is arranged on the horizontal moving mechanism, and the horizontal moving mechanism drives the base to move in a horizontal direction. The base, the lifting device, and the material rack acquisition unit are connected in sequence along the direction toward the conveyor line.

2. The circuit board translation temporary storage device according to claim 1, characterized in that: The material rack lifting mechanism also includes a first connecting member, which is evenly spaced and fixed to the outer circumferential surface of each of the first annular elements. The material rack includes a frame body and a second connecting member, which is spaced at both ends of the frame body, and the lower end of the second connecting member is detachably mounted on the first connecting member.

3. The circuit board translation temporary storage device according to claim 2, characterized in that: The conveyor line includes a first motor, a driving shaft, a driven shaft, a first roller group and a second roller group. The first roller group and the second roller group are symmetrically arranged. The driving shaft is transmission-connected to the first motor. Both ends of the first roller group and the second roller group are transmission-connected to the driving shaft and the driven shaft respectively. A first gap is provided between the first roller group and the second roller group. The first roller group and the second roller group both include a plurality of rollers. Adjacent rollers are transmission-connected. A second gap is provided between adjacent rollers. The first gap is connected to the second gap to form a through space. When the material rack is conveyed in a vertical direction, the material rack passes through the first gap and the second gap.

4. The circuit board translation temporary storage device according to claim 3, characterized in that: The frame includes a main beam, a sub-beam, and a rod. The sub-beam is vertically arranged on the main beam, the second connecting piece is arranged at both ends of the sub-beam, and a plurality of the rods are detachably arranged on the main beam. The main beam of each material rack is projected inside the first gap along the vertical direction. When the material rack is transported along the vertical direction, the main beam passes through the first gap, the rod passes through the second gap, and the sub-beam and the second connecting piece pass through the second gap.

5. The circuit board translation temporary storage device according to claim 1, characterized in that: The material rack acquisition unit includes a frame and a third connecting member, the third connecting member is arranged at both ends of the frame, and the upper end of the second connecting member is detachably connected to the third connecting member; when the material rack acquisition unit moves in the vertical direction, the third connecting member is projected inside the second gap.

6. The circuit board translation temporary storage device according to claim 2, characterized in that: The second connecting member is a hook, and the second connecting member includes a main body and a second plate. The main body is provided with a groove, and the second plate is arranged at one end of the groove. The first connecting member is a U-shaped plate, and both ends of the first connecting member are fixedly arranged on the first annular element. The first connecting member is arranged inside the groove, and the second plate is arranged inside the first connecting member.

7. The circuit board translation temporary storage device according to claim 5, characterized in that: The third connecting member is a magnet, and the third connecting member is connected to the second connecting member through magnetic flux lines.

8. The circuit board translation temporary storage device according to claim 1, characterized in that: The driving device includes a second motor, a first shaft, a second shaft, a third shaft, a transmission wheel, a bearing, a fourth annular element and a third annular element. The third shaft is arranged between the first shaft and the second shaft, the third shaft is transmission-connected to the second motor, the first annular element and the second annular element are transmission-connected to the first shaft and the second shaft respectively, the bearing is arranged on the first shaft, the transmission wheel is arranged on the third shaft, the first shaft and the third shaft are transmission-connected through the third annular element, the second shaft and the third shaft are transmission-connected through the fourth annular element, one end of the third annular element is rotatably connected to the first shaft through a bearing, the other end of the third annular element rotates synchronously with the second shaft, and the transmission wheel is arranged on the outside of the third annular element and transmission-connected to the third annular element.

9. The circuit board translation temporary storage device according to claim 8, characterized in that: The first annular element, the second annular element and the third annular element are all transmission belts or transmission chains.

10. The circuit board translation temporary storage device according to claim 1, characterized in that: The horizontal moving mechanism includes a bracket, a servo motor and a belt. The base is slidably arranged inside the bracket. The belt is arranged on both sides of the base. The belt is transmission-connected to the servo motor. The base is fixedly connected to the belt. The lifting device is a pneumatic cylinder or an electric cylinder.

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