Clamp transfer device for printed circuit board

Abstract

The invention discloses a jig transfer device for a printed circuit board. A jig transfer device for a printed circuit board according to the present invention, which is a device for transferring a jig for a printed circuit board that vertically grips a printed circuit board, comprises: a base frame; a plurality of first rotating roller parts which are arranged at intervals along the longitudinal direction of the base frame, are rotatably supported on the base frame, and can transfer the jig for the printed circuit board, which is arranged on the upper part of the first rotating roller parts; and a plurality of second rotating roller parts which are disposed corresponding to the plurality of first rotating roller parts, and which are rotationally driven by a drive source to rotate the plurality of first rotating roller parts by means of a magnetic force. According to the invention, the plurality of first rotating roller parts and the second rotating roller parts are arranged in the space between the pair of side part frames, so that the whole transfer device is miniaturized, and the space utilization degree of a working site is improved.

Description

Technical Field

[0001] The present invention relates to a jig transfer device for printed circuit boards which clamps a printed circuit board or a raw material for the printed circuit board and transfers it so as to perform the next continuous processing process. Background Art

[0002] Printed circuit boards, which are used in various electronic devices such as TVs and smartphones, undergo various chemical treatment processes during the manufacturing process. After the treatment processes such as electroplating, exposure, etching, washing, and drying, the printed circuit boards need to be transferred to the subsequent process through a predetermined transfer device. The subsequent process can be a post-processing process or a packaging process.

[0003] Recently, printed circuit boards have become thinner and larger. Generally speaking, a continuous processing system is used in the process of processing printed circuit boards. It includes: a horizontal moving type that sprays a processing liquid on one or both sides of the printed circuit board while the printed circuit board is transported in a horizontal state; and a vertical moving type that processes the printed circuit board while the printed circuit board is transported in a vertical state. Each of them has its own advantages and disadvantages.

[0004] Both the horizontal and vertical moving types are structured such that after the roller assembly contacts the jig for the printed circuit board, the roller assembly is rotated to move it to one side. In order to achieve thinning and enlarging of the printed circuit board, the efficient vertical moving type is used.

[0005] Furthermore, in order to drive the roller assembly, the vertically movable clamp transfer structure requires various power transmission components for transmitting the rotational force of a motor or the like to the roller assembly. For example, various power transmission components such as multiple gear modules and sprocket modules that are arranged corresponding to the multiple rollers and can drive the multiple rollers individually are suitable.

[0006] Conventionally, various power transmission components are arranged to be located on the left or right side of the roller assembly, that is, the plurality of rollers. This has the disadvantage of inevitably increasing the overall size of the jig transfer device for fixing and transferring a printed circuit board.

[0007] In more detail, a plurality of rollers are continuously arranged in a horizontal direction along the transfer direction of the printed circuit board fixing transfer fixture, and the plurality of gear modules are arranged in the extension line direction of the rotation axis of the rollers. Therefore, there is a disadvantage of inevitably increasing the left and right width of the overall device that intersects with the transfer direction (longitudinal direction) of the printed circuit board fixing transfer fixture.

[0008] Prior art literature

[0009] Patent document: (Patent document 0001) Korean Patent Gazette No. 10-2551729 (granted on June 30, 2023) Summary of the invention

[0010] Technical problem to be solved by the invention

[0011] The present invention is provided to solve the above-mentioned conventional problems, and its purpose is to provide a printed circuit board clamp transfer device in which a power transmission component for transferring a roller assembly is arranged below the roller assembly that is transferred in a state of contacting and supporting the printed circuit board clamp, thereby making the overall device smaller than before and enhancing the space utilization at the work site.

[0012] Technical solutions to the problem

[0013] According to one aspect of the present invention, as a device for transferring a printed circuit board clamp that vertically clamps a printed circuit board, there is provided a printed circuit board clamp transfer device, comprising: a base frame; a plurality of first rotating roller portions, which are arranged in plurality and spaced apart from each other along the longitudinal direction of the base frame, and are rotatably supported on the base frame so as to transfer the printed circuit board clamp placed on the upper portion thereof; and a plurality of second rotating roller portions, which are arranged in plurality corresponding to the plurality of first rotating roller portions, respectively, and are rotationally driven by a driving source, and the plurality of first rotating roller portions are rotated by magnetic force.

[0014] The base frame includes a pair of side frames that are formed to be long in a longitudinal direction and are arranged to be spaced apart from each other, and the plurality of first rotating roller portions and the second rotating roller portions are arranged in a space between the pair of side frames.

[0015] The plurality of first rotating roller units respectively include: a rotating shaft, which is rotatably supported on the base frame; a pair of supporting rollers, which are integrally connected to the rotating shaft and are arranged along the longitudinal separation of the rotating shaft; a first magnetic ring, which is integrally connected to the rotating shaft and is arranged between the pair of supporting rollers, and the plurality of second rotating roller units respectively include: a second magnetic ring, which is arranged to be separated from the first magnetic ring, rotates by the drive of the driving source, and the first magnetic ring is rotated by the magnetic force generated between the first magnetic ring and the first magnetic ring.

[0016] The base frame includes: a pair of side frames, which are formed to be longer in the longitudinal direction and are spaced apart from each other; a bottom frame, which connects the lower ends of the pair of side frames, and also includes: a power connection part, which is used for axial connection and receives power from the driving source so that the multiple second rotating roller parts rotate simultaneously, and the power connection part is arranged on the lower side of the multiple first rotating roller parts and is arranged in the space between the pair of side frames and the bottom frame.

[0017] A step is formed between the pair of support rollers and the outer surface of the first magnetic ring so that the lower portion of the jig for printed circuit boards contacts only the pair of support rollers but does not contact the first magnetic ring.

[0018] Effects of the Invention

[0019] According to the printed circuit board jig transfer device of the present invention described above, a plurality of first rotating rollers and second rotating rollers are arranged in the space between a pair of side frames, thereby making the entire transfer device more compact and increasing the space utilization rate at the work site.

[0020] Furthermore, the first magnetic ring and the rotating shaft are integrally connected to each other via bolts and bolt insertion hole structures and rotate simultaneously. Therefore, when the second magnetic ring rotates, the first magnetic ring can be prevented from idling relative to the rotating shaft and can rotate simultaneously with the rotating shaft.

[0021] Furthermore, a step difference is formed between a pair of support rollers and the outside of the first magnetic ring, so that the lower portion of the printed circuit board clamp only contacts the pair of support rollers but not the first magnetic ring. Therefore, even if the printed circuit board clamp is formed of a metal material, the printed circuit board clamp is separated from the first magnetic ring by a distance of the step difference and can be transferred without being affected by the magnetic field. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a perspective view showing a jig transfer device for a printed circuit board according to an embodiment of the present invention.

[0023] Figure 2 for Figure 1 Front view of .

[0024] Figure 3 It is a cross-sectional view showing the main structure of the jig transfer device for a printed wiring board according to an embodiment of the present invention.

[0025] Figure 4 The present invention is a perspective view showing the combined arrangement relationship between the base frame and the first and second rotating roller parts of the jig transfer device for printed wiring boards according to the embodiment of the present invention.

[0026] Figure 5 for Figure 2 Ⅳ-Ⅳ cross-section diagram.

[0027] Figure 6 for Figure 2 The enlarged view of the VI area is a diagram based on the state where one side frame is removed.

[0028] Figure 7The present invention is a cross-sectional view showing the connection and arrangement relationship between the first and second rotating roller parts of the base of the jig transfer device for printed wiring board according to the embodiment of the present invention.

[0029] Figure 8 and Fig. 9 It is a drawing showing a driving source of the jig transfer device for a printed circuit board according to an embodiment of the present invention.

[0030] Description of Reference Numerals

[0031] 10: printed circuit board, 20: clamp for printed circuit board, 100: base frame, 110: side frame, 120: bottom frame, 200: mounting frame, 300: first rotating roller portion, 310: rotating shaft, 320: supporting roller, 330: first magnetic ring, 331: bolt, 332: bolt insertion hole, S: step difference, 400: second rotating roller portion, 430: second magnetic ring, 500: driving source, 520: power transmission portion, 523: magnetic disk, 600: power connection portion, 610: rotating shaft. DETAILED DESCRIPTION

[0032] The embodiments of the present invention are described in more detail below with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and can be implemented in different forms. Moreover, the embodiments are provided only to make the disclosure of the present invention more complete and to inform the ordinary technicians in the technical field of the present invention of the scope of the present invention. The same symbols in the drawings refer to the same elements.

[0033] The printed circuit board fixture transfer device of the preferred embodiment of the present invention clamps the printed circuit board or the raw materials for the printed circuit board and transfers them so as to manufacture the desired target object after various processes. Compared with the past, the overall device is miniaturized and the space utilization of the workplace can be increased.

[0034] Hereinafter, the present invention will be described in detail with reference to examples.

[0035] like Figures 1 to 4 As shown, as an example of a printed circuit board fixture transfer device according to an embodiment of the present invention, a printed circuit board fixture 20 is provided for vertically clamping a printed circuit board 10, including: a base frame 100, a plurality of first rotating roller units 300, and a plurality of second rotating roller units 400.

[0036] The base frame 100 is a portion where the plurality of first rotating roller parts 300 and the second rotating roller parts 400 are installed, and is fixedly installed on the installation frame 200 .

[0037] like Figure 3 and Figure 4As shown, the base frame 100 is generally formed in a "C"-shaped channel shape, which includes: a pair of side frames 110 that are formed longitudinally and spaced apart from each other, and a bottom frame 120 that connects the lower ends of the pair of side frames 110. Here, the bottom frame 120 is fixedly installed on the mounting frame 200.

[0038] In an embodiment of the present invention, as Figure 3 and Figure 4 shown, a plurality of first rotating roller parts 300 are formed along the longitudinal direction of the base frame 100 and spaced apart from each other. They are rotatably supported on the base frame 100 and can transfer the printed circuit board fixture 20 placed on it.

[0039] As Figures 1 to 3 shown, the printed circuit board fixture 20 includes: a fixture base plate 21 formed in a polygonal plate shape; a fixture stand 22 in the form of a four-legged stand formed at the central part of the upper surface of the fixture base plate 21; and fixtures 23 fixedly installed on the upper and lower parts of the fixture stand 22 respectively to clamp and fix the printed circuit board 10 disposed inside the fixture stand 22.

[0040] In an embodiment of the present invention, the lower surface of the fixture base plate 21 of the printed circuit board fixture 20 is placed in a state of being in contact with and supported by the outer surface of the first rotating roller part 300. Moreover, a plurality of first rotating printed circuit board fixtures 20 are transferred in one side direction by the rotation of the first rotating roller part 300.

[0041] As Figure 5 shown, a plurality of side support rollers 210 are provided on the upper side part of the mounting frame 200 so as to support the fixture stand 22 from the left and right sides during the transfer of the printed circuit board fixture 20 to prevent it from swaying left and right and enable stable conveyance. Moreover, a pair of rollers are correspondingly provided for the plurality of side support rollers 210 so that the fixture stand 22 can pass through them, and they are provided in plurality at intervals along the conveyance direction of the printed circuit board fixture.

[0042] As Figure 3 , Figure 4 , Figure 6 and Figure 7 shown, each of the plurality of first rotating roller parts 300 includes: a rotating shaft 310, a pair of support rollers 320, and a first magnetic ring 330.

[0043] The rotating shaft 310 can be formed of a metal material such as SUS, is arranged in a direction crossing a pair of side frames 110, and is rotatably supported by the side frames 110 of the base frame 100. More specifically, a groove is provided in the side frame 110 and recessed downward, and bearings 340 for rotatably supporting both ends of the rotating shaft 310 are additionally provided in the groove.

[0044] The support rollers 320 are integrally connected to the rotating shaft 310 and are provided in pairs spaced apart in the longitudinal direction of the rotating shaft. More specifically, the support rollers 320 are formed with through holes so that the rotating shaft 310 passes through, and are connected to be rotatable simultaneously when the rotating shaft rotates.

[0045] In the embodiment of the present invention, as described above, the lower surface of the jig base plate 21 of the jig 20 for printed circuit boards is supported by the first rotating roller unit 300, more specifically, supported by the outer surface of the pair of supporting rollers 320, and the jig 20 for printed circuit boards is transferred to one side by the rotation of the supporting rollers 320 of the first rotating roller unit 300. That is, preferably, a contact friction force greater than a predetermined value is formed between the pair of supporting rollers 320 and the jig base plate 21, and the jig 20 for printed circuit boards can be smoothly transferred by the above-mentioned mutual contact friction force.

[0046] In the embodiment of the present invention, the fixture base plate 21 can be formed of a metal material such as SUS, and the pair of support rollers 320 can be formed of a material that can provide sufficient contact friction between the metal materials. More specifically, the support rollers 320 are formed of a material that can be elastically deformed and restored and has a predetermined elasticity or more, and the elasticity can generate a predetermined sufficient contact friction between the objects in contact with each other. The support rollers 320 can be formed of materials such as rubber, silicon, and epoxy resin.

[0047] As described above, the pair of support rollers 320 are formed of an elastic material, so that the rotating shaft 310 can be stably fixed to the through hole of the support roller 320 by forced press-fitting, thereby allowing the support rollers 320 to rotate simultaneously when the rotating shaft 310 rotates.

[0048] The first magnetic ring 330 is a magnetic body having magnetic force, which is integrally connected to the rotating shaft 310 and is disposed between a pair of supporting rollers 320. Furthermore, as described below, the rotation of the rotating shaft 310 and the supporting roller 320 is operated by rotating the first magnetic ring 330 by means of the change of the magnetic field (magnetic force) caused by the rotation of the second magnetic ring 430, and for this purpose, a structure is required in which the first magnetic ring 330 is integrally connected to the rotating shaft 310 and can rotate simultaneously.

[0049] In the embodiment of the present invention, Figure 7 As shown, a through hole is formed inside the first magnetic ring 330 so that the rotating shaft 310 passes through, and the first magnetic ring 330 can be integrally combined with the rotating shaft 310 by bolts 331 .

[0050] like Figure 7As shown, bolt insertion holes 332 are respectively formed at both longitudinal end regions of the first magnetic ring 330 for inserting bolts 331 , and the bolt insertion holes 332 are separated into a plurality of holes along the circumferential direction of the first magnetic ring 330 .

[0051] When the operator inserts bolts into the plurality of bolt insertion holes 332, and the bolt connection is completed to the extent that the insertion ends of the bolts pressurize the outer surface of the rotating shaft 310 with a predetermined pressure or more, the first magnetic ring 330 and the rotating shaft 310 are integrally connected to each other through the structure of the bolts 331 and the bolt insertion holes 332, so that they can rotate simultaneously. That is, when the second magnetic ring 430 rotates, the first magnetic ring 330 does not idle with respect to the rotating shaft 310, but can rotate simultaneously with the rotating shaft.

[0052] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the second rotating roller parts 400 are formed in plurality corresponding to the plurality of first rotating roller parts 300 , respectively, and are rotationally driven by the driving source 500 , so that the plurality of first rotating roller parts 300 are rotated by magnetic force.

[0053] In detail, the plurality of second rotating roller parts 400 include second magnetic rings 430: they are respectively arranged at a distance below the first magnetic ring 330, rotated by the drive of the driving source 500, and rotated the first magnetic ring 330 by means of a change in magnetic force (magnetic field change) between the second magnetic ring 330 and the first magnetic ring 330. Here, the second magnetic ring 430 is arranged in a state of being separated from the first magnetic ring 330, but preferably, the second magnetic ring 430 is arranged within a distance that the change in magnetic field generated when the second magnetic ring rotates can sufficiently affect the first magnetic ring.

[0054] In the embodiment of the present invention, the first magnetic ring 330 and the second magnetic ring 430 are a kind of magnetic gear (Geard Magnet), which transmits power in a non-contact manner by the force of the N pole and the S pole pulling each other. More specifically, the first magnetic ring 330 and the second magnetic ring 430 are formed along their circumferential direction in the manner of N, S, N, S, ... so that the polarity of the magnets is alternately formed, and at this time, the N pole and the S pole play the role of a gear rack.

[0055] In an embodiment of the present invention, the first magnetic ring 330 and the second magnetic ring 430 are arranged in a form in which the central axes of rotation are orthogonal to each other, and when the second magnetic ring 430 is rotated by the driving source 500, the rotational force is transmitted by utilizing the attraction / repulsion of magnetic force (attraction / repulsion between the N pole and S pole of the magnet) while the first magnetic ring and the second magnetic ring are not in contact.

[0056] In the embodiment of the present invention, Figures 3 to 5 , Figure 7 As shown, the plurality of first rotating roller units 300 and the second rotating roller units 400 are arranged in the space between the pair of side frames 110 , so that the entire transfer device is formed more compact, and the space utilization of the work site can be enhanced.

[0057] In more detail, if the structure that enables the rotating shaft 310 and the supporting roller 320 to rotate is configured in the outer space other than the inner space of the pair of side frames 110, the size of the overall clamp transfer device will inevitably increase, and the space occupied in the work site area will increase, thereby reducing the space utilization of the work site area.

[0058] However, the present invention configures all the main components for transferring the printed circuit board clamp 20, such as multiple first rotating roller units 300 and second rotating roller units 400, in a very narrow space between a pair of side frames 110, and therefore has the advantage of miniaturizing the entire clamp transfer device.

[0059] like Figure 7 As shown, in order to make the lower portion of the printed circuit board jig 20 contact the pair of support rollers 320 but not contact the first magnetic ring 330 , a step S is formed between the pair of support rollers 320 and the outer surface of the first magnetic ring 330 .

[0060] Thus, the printed circuit board fixture 20 is transferred in a state where its lower portion is supported and contacted only by a pair of support rollers 320. For example, even if the printed circuit board fixture 20 is formed of a metal material that is attached to a magnet under the influence of a magnetic field, the printed circuit board fixture 20 is formed in a state separated from the first magnetic ring 330 by a step difference S, and therefore can be transferred in a state not affected by the magnetic field.

[0061] like Figure 4 , Figure 6 , Figure 8 and Fig. 9 As shown, the jig transfer device for a printed circuit board according to an embodiment of the present invention includes: a driving source 500; and a power connection part 600 which forms an axial connection so as to receive power from the driving source 500 to rotate the plurality of second rotating roller parts 400 simultaneously.

[0062] In the embodiment of the present invention, the driving source 500 includes: a motor 510; and a power transmission part 520 that receives the rotational force of the motor 510 to rotate the power connection part 600.

[0063] Furthermore, the power connection part 600 includes: a plurality of rotating shafts 610 connected in a long manner on the axis so that the plurality of second rotating roller parts 400 rotate simultaneously; and a coupling 620 connecting the plurality of rotating shafts 610 to transmit power.

[0064] Here, if Figure 3 , Figure 4 , Fig. 9 As shown, the power connection part 600 is disposed under the plurality of first rotating roller parts 300 and in the space between the pair of side frames 110 and the bottom frame 120. Thus, as described above, the entire transfer device is made more compact, thereby enhancing the space utilization of the work site.

[0065] That is, the present invention arranges a plurality of first rotating roller units 300, second rotating roller units 400, rotating shafts 610, couplings 620 and other main components for transferring the clamp 20 for the printed circuit board in a very narrow space between a pair of side frames 110, and therefore has the advantage of miniaturizing the overall clamp transfer device.

[0066] like Figure 8 and Fig. 9 As shown, the power transmission part 520 includes: a first bevel gear 521, which receives the rotational force of the motor 510 and rotates; a second bevel gear 522, which is tooth-coupled with the first bevel gear 521 to receive the rotational force, and is axially coupled to the rotating shaft 610; and a magnetic disk 523, which transmits the rotational force of the motor 510 to the power connection part side.

[0067] More specifically, the magnetic disk 523 is disposed on a driving shaft connecting the motor 510 and the first bevel gear 521 , and transmits the rotational force of the motor to the first bevel gear side.

[0068] The disk 523 forms a pair of structures separated from each other, which is a magnetic coupling that uses magnetic force to transmit driving force, and is used to drive the driving source 500 of the driving unit configured inside the chamber. When the motor 510 is configured outside the chamber, the inside of the chamber is stably sealed from the outside, thereby effectively driving the driving unit inside the chamber.

[0069] In more detail, Figure 1 and Fig. 9 As a reference, the mounting frame 200 is shown to be formed in a quadripod shape, for example, so that the base frame 100, the first magnetic ring 330, and the second magnetic ring 430 are arranged inside and supported from below.

[0070] With regard to the drawings, in particular, Figure 1In order to show the jig for printed circuit boards disposed inside, the left and right sides and the front and rear sides of the mounting frame 200 are open to the outside, but in fact, the above-mentioned open areas are covered by another covering member, and the inner space of the mounting frame 200 is sealed to the outside, so that the mounting frame 200 functions as a chamber. That is, the jig for printed circuit boards moves along the inside of the mounting frame, and various components are provided inside the mounting frame 200 to spray chemicals, etc. onto the moving printed circuit boards.

[0071] Furthermore, as described above, the motor 510 is disposed outside the mounting frame 200, and in order to transmit the driving force of the motor to the mounting frame 200, i.e., the first and second bevel gear sides arranged inside the chamber, a through hole must be formed in the wall of the chamber to allow the rotating shaft to pass through. However, even if the through hole is not formed in the wall of the chamber, the present invention can easily transmit the driving force of the motor to the first and second bevel gear sides through the magnetic disk 523.

[0072] More specifically, the wall body constituting the bottom surface of the chamber wall body is arranged between the pair of magnetic disks 523, so that the inside of the chamber can be stably sealed and the driving force of the motor can be effectively transmitted to the inside of the chamber. In addition, as described above, when operations such as spraying chemicals are performed inside the chamber, the chemicals are prevented from leaking out of the chamber and contaminating the operation site.

[0073] The present invention has been described above with reference to preferred embodiments that illustrate the principles of the present invention, but the present invention is not limited to the configurations and functions illustrated and described. A person skilled in the art of the present invention should understand that the present invention may be modified and altered in various ways without departing from the spirit and scope of the claims of the present invention.

Claims

1. A printed circuit board fixture transfer device, as a device for transferring a printed circuit board fixture that vertically clamps a printed circuit board, characterized in that: include: Base frame; a plurality of first rotating roller portions, which are arranged in a plurality and spaced apart from each other along the longitudinal direction of the base frame and are rotatably supported by the base frame so as to be able to transfer the jig for printed circuit boards placed on the upper portion thereof; and The plurality of second rotating roller parts are arranged in a plurality corresponding to the plurality of first rotating roller parts, respectively, and are rotationally driven by a driving source to rotate the plurality of first rotating roller parts by magnetic force.

2. The jig transfer device for a printed circuit board according to claim 1, characterized in that: The base frame includes a pair of side frames which are formed to be long in the longitudinal direction and are arranged to be spaced apart from each other. The plurality of first rotating roller portions and the second rotating roller portions are arranged in a space between the pair of side frames.

3. The jig transfer device for a printed circuit board according to claim 1, characterized in that: The plurality of first rotating roller parts respectively include: a rotating shaft rotatably supported on the base frame; a pair of support rollers connected integrally to the rotating shaft and arranged to be spaced apart in the longitudinal direction of the rotating shaft; a first magnetic ring which is integrally connected to the rotating shaft and is disposed between the pair of supporting rollers; The plurality of second rotating roller parts respectively include: The second magnetic ring is disposed to be separated from the first magnetic ring, is driven to rotate by the driving source, and causes the first magnetic ring to rotate due to a magnetic force generated between the second magnetic ring and the first magnetic ring.

4. The jig transfer device for a printed circuit board according to claim 3, characterized in that: The base frame includes: a pair of side frames which are formed to be long in the longitudinal direction and are spaced apart from each other; and a bottom frame which connects the lower ends of the pair of side frames. Also includes: a power connection part, which is used for shaft connection and receives power from the driving source so that the plurality of second rotating roller parts rotate simultaneously, Furthermore, the power connection portion is disposed on the lower side of the plurality of first rotating roller portions and is disposed in a space between the pair of side frames and the bottom frame.

5. The jig transfer device for a printed circuit board according to claim 3, characterized in that: A step is formed between the pair of support rollers and the outer surface of the first magnetic ring so that the lower portion of the jig for printed circuit boards contacts only the pair of support rollers but does not contact the first magnetic ring.

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