JP4906774B2 - Plate workpiece transfer device - Google Patents

Description

  The present invention relates to a technique required for conveying a plate-like workpiece such as a printed circuit board.

Regarding the conveyance of a plate-like workpiece such as a printed circuit board, a method of placing the plate-like workpiece on a driving roller is the simplest (for example, Japanese Patent Application Laid-Open No. 2007-217752). However, depending on the plate-like workpiece to be conveyed, a delicate plate surface state may be required, and various methods for avoiding scratches due to the contact surface with the roller have been proposed. As one of them, there is a technique in which only the both ends in the width direction of the plate-like workpiece are conveyed while being sandwiched between upper and lower rollers (one is a driving roller). According to this technology, since only the both ends in the width direction of the plate-like workpiece are in contact with the rollers, most of the surface of the plate-like workpiece is conveyed in a non-contact manner, and the occurrence of surface damage due to contact can be effectively prevented. It will be.
JP 2007-217752 (FIG. 1)

  However, the mechanism that sandwiches both ends in the width direction with rollers needs to change the position of the rollers when the size of the plate-like workpiece is changed. Since either of the upper and lower rollers is accompanied by a drive mechanism, if a position changing mechanism is provided, it is necessary to incorporate the drive mechanism therein, and the mechanism cannot be simplified and the cost increases.

  The present invention was devised in view of the above-described problems of the prior art, and is a technology that can effectively prevent surface scratches even when conveying plate-like workpieces of different sizes, and is simple and low-cost. Is to provide a technology.

For this reason, the conveyance apparatus of the plate-shaped workpiece | work which concerns on this invention is a front side frame part (10) which clamps the front-end part of a plate-shaped workpiece, the rear side frame part (11) which clamps a rear-end part, these front and back the frame portion (10), (11) Ryowaku unit while length freely adjusting the distance between (10), (11) connecting member for connecting the (16) consisting of a plate-shaped workpiece mounting置枠body (1 ) On the transport body (2) , and the opposite side end portions (12) of the front frame portion (10) and the rear frame portion (11) are comb-like. A bar-shaped clamp (having a cut-out configuration) that is detachable along the longitudinal direction of the comb-shaped side end (12) on the front frame (10) and the rear frame (11). 13) is arranged, and the bar-shaped clamp (13) is provided with a ring-shaped pressing portion bulge (13b) at a location where the comb-shaped side end (12) abuts on the comb-shaped convex portion (12a). The front frame portion (10) and the rear frame formed In (11), characterized in that the front end portion of the plate-like workpiece and the rear end portion between the comb-shaped side edge portion (12) and rod-like clamp (13) is respectively clamped.

  In the apparatus of the present invention, the plate-like workpiece is not directly placed on a conveyor such as a conveyor or a roller, but is placed on the placement frame, and then the placement frame is placed on the carrier. Let For this reason, a plate-shaped workpiece | work does not contact a conveyance body and there is no possibility of the generation | occurrence | production of the damage | wound by contact on a workpiece | work board surface. On the other hand, the mounting frame body is fixed by sandwiching the front and rear end portions of the plate-like workpiece between the front and rear frame portions, but the front and rear frame portions are connected by a connecting body that can freely adjust the distance between them. Therefore, when conveying plate-like workpieces having different sizes, the distance between the frame portions may be adjusted to match the size of the plate-like workpiece. Since the distance adjustment mechanism between the frame parts of the connecting body does not need to connect the driving mechanism of the transport body to the frame part and the connecting body in particular, for example, as shown in the embodiment, the frame part is attached to the connecting rod. It can be configured with a very simple mechanism that can slide freely (of course, other known mechanisms may be used). That is, it is possible to cope with the size change of the plate-like workpiece with a very simple and low-cost configuration.

  As described above, according to the present invention, despite the extremely simple and low-cost configuration, it is possible to convey plate-shaped workpieces of various sizes without causing the possibility of scratches. Is recognized.

  An example of a specific form according to the invention of the present application will be described with reference to the drawings. In addition, the form example shown below is an example of this invention to the last, Comprising: Of course, this invention is not limited to those form examples.

  FIG. 1 is a plan view of the entire conveying apparatus, FIG. 2 is a front view of FIG. 1, FIG. 3 is an explanatory view of a plate-like workpiece placement frame, and FIG. In each figure, an arrow indicates the direction of the conveyance line.

  As shown in FIG. 1 and FIG. 2, the transport device of the present embodiment includes a plate-shaped workpiece placement frame 1 and a transport body that transports the plate-like workpiece 3 in a state where the placement frame 1 is placed. (However, the plate-like workpiece 3 is omitted in FIG. 1).

  As shown in FIG. 3, the plate-like workpiece placement frame 1 includes a front frame 10 (a front frame portion) provided with a mechanism for holding the front end portion of the plate-like workpiece 3 and a mechanism for holding the rear end portion. The rear frame 11 (rear frame portion) and the connecting body 16 of the frames 10 and 11 provided with an adjusting mechanism for adjusting the distance between the frames 10 and 11 in a freely adjustable manner.

  The front and rear frames 10 and 11 have substantially the same configuration, and the side end 12 on the opposite side of each frame 10 and 11 is notched in a comb shape, and the comb-shaped side ends thereof A rod-like clamp 13 that is detachable from the portion 12 along its longitudinal direction is disposed while being rotatably supported via a bearing 19 disposed at an arbitrary intermediate portion. The rod-shaped clamp 13 is formed by bending a single rod body into a crank shape and providing two protruding portions 13a. When the rod-shaped clamp 13 is rotated and lowered, the protruding portion 13a becomes the comb-shaped side end. It abuts on the convex part 12a of the part 12. By this abutting operation, the front and rear ends of the plate-like workpiece 3 which will be described later are clamped, but at the abutting portion of the bar-shaped clamp 13 protruding portion 13a, a ring-shaped pushing portion bulge for ensuring the clamping is provided. 13b is formed respectively.

At both ends of each of the frames 10 and 11, a guide traveling portion 14 having an inverted U-shaped cross section is formed by three plate members 14a to 14c. The guide traveling unit 14 is a portion that travels along a guide rail 20 of the carrier 2 described later.
The inner plate member 14a is fixed so as to rise from both ends of each frame 10, 11, the intermediate plate member 14b is fixed to the upper end of the inner plate member 14a, and the outer plate member 14c is attached to the other end surface of the intermediate plate member 14b. It is fixed so as to face 14a.
A lever mechanism 15 for rotating the rod-shaped clamp 13 is formed on the inner plate member 14a on one side of the guide traveling portion 14 as described above. The lever mechanism 15 has a base end portion in the inner plate member 14a, and is fixed to the side surface of the lever main body 15a via the fulcrum shaft 15e. Swing link 15b, a guide pin 15c protruding from the end of the swing link 15b, and a toggle link 15d having a guide groove 15f into which the guide pin 15c is inserted and slid. One end of the rod-like clamp 13 is fixed to the toggle link 15d.
As described above, the lever main body 15a is tilted within the sliding range of the guide groove 15f of the toggle link 15d, the rod-shaped clamp 13 is rotated by the tilting operation, and the crank-shaped protrusion 13a can be moved up and down. The lever mechanism 15 is provided with tension to the lever main body 15 or the rod-shaped clamp 13 by a spring (not shown), and is biased to the downward movement of the crank-shaped protrusion 13a. The plate 13 is securely held by the clamp 13.
A through hole 14g for supporting a connecting rod 16a described later is formed in the intermediate plate member 14b. The through hole 14g slidably supports the connecting rod 16a inserted therein.
At the lower end of the outer plate 14c, there is provided a roller 14h that travels on a two-step portion 20b of the carrier 2 guide rail 20 described later, and a block piece 14i is fixed to the outer surface. At the lower end of the block piece 14i, a hook 14j that engages with the inter-comb spacing 21a of the chain belt 21 of the carrier 2 described later is pivotally supported with a stopper (not shown) so as to tilt only in one direction. ing.

  The connecting body 16 is a rod-like connecting rod 16a in this embodiment, and the connecting rod 16a is slidable in each through hole 14g of the intermediate member 14b of both the frames 10 and 11 as described above. Inserted. This slidable insertion mechanism is a distance adjustment mechanism between the frames 10 and 11. Both the frames 10 and 11 have the connecting rods 16a fitted and inserted into the through holes 14g formed in the respective intermediate plate members 14b with the convex portions 12a of the comb-like side end portions 12 facing each other. Connected. If the frames 10 and 11 are appropriately slid with respect to the connecting rod 16a in the inserted state, the distance between the frames 10 and 11 can be adjusted freely. After the distance adjustment, the connecting rod 16a may be fixed with a fixing pin or the like (not shown).

As shown in FIGS. 2 and 4, the transport body 2 has a pair of guide rails 20 arranged in parallel along a line, and a drive sprocket 22 movably surrounds the guide rail 20 on the outer edge side. The chain belt 21 is provided. The guide rail 20 is formed in a stepped shape in which the cross section is reduced in height from the inside to the outside from the top step portion 20a, the two step portions 20b, and the three step portions 20c, and the two steps 20b and the three steps 20c A groove 20d is formed between them. The chain belt 21 is formed with comb teeth on one end side (21a in the figure indicates between the comb teeth), and is disposed on the groove 20d of the guide rail 20 so that the comb teeth are located. The hook 14j at the lower end of the block piece 14i is engaged with the inter-comb spacing 21a.
As described above, the guide travel portion 14 travels while being fitted to the top step portion 20a and the second step portion 20b of the guide rail 20. That is, the bottom roller 14h of the outer plate member 14c contacts the second step portion 20b while the bottom surface of the intermediate plate member 14b of the frames 10, 11 faces the top step portion 20a inside the guide rail 20. At this time, the end of the hook 14j at the lower end of the block piece 14i enters the groove 20d in an engaged state between the comb teeth 21a of the chain belt 21, and when the chain belt 21 moves, the end of the engaged hook 14j Accordingly, the bottom roller 14h slides on the two-step portion 20b of the guide rail 20, so that the guide traveling portion 14 advances in the line direction.

  Next, a usage example of this embodiment will be described.

  First, the plate-like workpiece 3 is set on the mounting frame 1, and the setting operation is performed by connecting the front frame 10 or the rear frame 11 of the mounting frame 1 to the connecting rod 16a according to the size of the plate-like workpiece 3. And the distance between the frames 10 and 11 is adjusted so that the front and rear ends of the plate-like workpiece 3 are positioned on the opposing comb-like convex portions 12a of the respective frames 10 and 11. After adjusting the position, before placing the plate-like workpiece 3, the lever main body 15a is pulled up, the rod-like clamp 13 is rotated, and the clamp-like protruding portion 13a is raised. After placing the front and rear ends of the plate-like workpiece 3 on the comb-like convex portions 12a of the frames 10 and 11, the lever main body 15a is pulled down, and the rod-like clamp 13 is rotated in the reverse direction, and the clamp-like protruding portion The front and rear ends of the plate-like workpiece 3 are clamped between the frames 10 and 11 and the rod-shaped clamp 13 by lowering 13a and pressing the ring-shaped pressing portions 13b of the protrusion 13a against the front and rear ends of the plate-like workpiece 3.

  The mounting frame body 1 on which the plate-like workpiece 3 is set as described above is mounted on the guide rail 20 of the transport body 2 by a predetermined transfer means (not shown). At this time, as described above, the engaging hooks 14j are engaged with the inter-comb teeth 21a of the chain belt 21 while the guide traveling portions 14 at both ends of the mounting frame 1 are engaged with the step portions of the guide rail 20. When the chain belt 21 is moved, the engaging hook 14j follows and the placement frame 1 advances on the guide rail 20.

  According to this embodiment, despite the extremely simple structure as described above, even if the size of the plate-like workpiece 3 to be transferred is different, the distance between the front and rear frames 10 and 11 can be adjusted simply by sliding. As long as the size is within the range of the length of the frames 10 and 11 and the connecting rod 16a, they can be held without any problem. The plate-like workpiece 3 is transferred while the front and rear ends of the plate-like workpiece 3 are clamped, and nothing is brought into contact with the surface of the plate-like workpiece 3, so that there is no possibility of scratches.

  As described above, the present invention is not limited to the above-described embodiments, and changes in the shapes of the front and rear frames 10 and 11 (frame bodies), the clamping structure, and the like are possible without departing from the configuration of the present invention. (For example, gripping with upper and lower dedicated clamps as a sandwiching structure, etc.), changing the distance adjustment mechanism of the connecting body 16 (for example, a mechanism using a rack and pinion), changing the shape and structure of the transport body 2 (for example, mounted on a roller) Needless to say, a structure in which the frame 1 is directly placed and transferred may be used.

  The present invention can be applied to a processing line as an apparatus for conveying various plate-like workpieces such as a printed circuit board.

FIG. 2 is a plan view of the entire conveying device (however, the plate-like workpiece 3 is omitted). It is a front view of FIG. It is explanatory drawing (however, the bearing 19 is abbreviate | omitted) of a plate-shaped workpiece mounting frame. It is explanatory drawing of a conveyance body.

Explanation of symbols

1 Plate workpiece mounting frame
2 Carrier
3 Plate work
10 Front frame (front frame)
11 Rear frame (rear frame)
16 Connected body (Connecting rod 16a)

Claims (1)

The distance between the front frame (10) that clamps the front end of the plate-like workpiece, the rear frame (11) that clamps the rear end, and the front and rear frames (10) and (11) can be freely adjusted. The plate-like workpiece placement frame (1) consisting of the connecting body (16) that connects the two frame portions (10) and (11) while adjusting to the carrier (2) is placed on the carrier (2). A device ,
The opposite side end portions (12) of the front frame portion (10) and the rear frame portion (11) are notched in a comb shape, and the front frame portion (10) and the rear frame portion (11) is arranged with a rod-like clamp (13) that is detachable along the longitudinal direction of the comb-shaped side end (12),
The bar-shaped clamp (13) is formed with a ring-shaped pressing portion bulge (13b) at a location where it comes into contact with the comb-shaped convex portion (12a) of the comb-shaped side end portion (12),
In the front frame portion (10) and the rear frame portion (11), the front end portion and the rear end portion of the plate-like workpiece are sandwiched between the comb-shaped side end portion (12) and the bar-shaped clamp (13), respectively. transport apparatus of the plate-shaped workpiece, characterized in that it is.

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