JPH0825626B2 - Nip transport device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pinching and conveying device which is preferably used for grasping and taking out an object such as concrete hardened in a mold from the mold.

[0002]

2. Description of the Related Art For example, concrete products such as groove lids and pedestrian road boundaries are manufactured by pouring concrete into a mold, curing and curing for a certain period of time, and then taking out from the mold.

A plurality of such products are formed in a mold and individually taken out. A plurality of each product thus taken out is tapped in close proximity to each other, bundled into one, transported to the product storage space, and stored.

[0004]

In such a prior art, each product must be individually taken out from the mold,
In addition, since a plurality of products must be brought close to each other when taping, it takes a lot of time and labor and there is a problem that productivity is poor.

An object of the present invention is to provide a sandwiching / conveying device which can reduce the time and labor and improve the productivity.

[0006]

SUMMARY OF THE INVENTION The present invention has a pair of gripping members facing each other, and one of the gripping members is displaced in a direction in which the gripping member approaches or separates from the other gripping member so that the other gripping member is A plurality of gripping means for gripping an object arranged between them or releasing the gripped state thereof, and a positioning means for positioning the other gripping member at a predetermined position by moving the gripping member close to or away from the one gripping member. And a driving means for displacing and driving the respective gripping means in a direction in which the distance between the gripping means is reduced or enlarged along a predetermined arrangement direction.

[0007]

According to the present invention, by the positioning means, for example, one gripping member set at a predetermined position corresponding to the width of the object to be clamped and displaced in a direction approaching / separating from the one gripping member. And the other gripping member that is arranged to face each other. By the gripping means having such gripping members, the object arranged between the gripping members is gripped or the gripped state is released. Since the plurality of gripping means are arranged along the predetermined arrangement direction, a plurality of objects can be gripped at one time.

Further, since each of the gripping means is displaced and driven by the driving means in a direction of reducing or expanding the mutual interval along the predetermined arrangement direction, a plurality of gripping means are gripped by the gripping means. The objects can be close to each other, and therefore workability when taping or the like is good.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a pinching and conveying apparatus 1 according to an embodiment of the present invention.
2 is a perspective view of the holding and conveying device 1 viewed from the left side of FIG. 1. The nipping / conveying device 1 basically has a gripping unit 5, a positioning unit 6, a driving unit 7, and a moving unit 8. The gripping means 5 has a pair of gripping members 2 and 3 facing each other, and one of the gripping members 2 and 3 is displaced in a direction in which the gripping member 2 approaches or separates from the other gripping member 3. Then, the product 4 arranged between the gripping member 3 and the gripping member 3 is gripped, or the gripped state is released. A plurality of such gripping means 5 (five pairs in this embodiment) are arranged in parallel. The positioning means 6 includes the gripping member 3
Is brought close to or away from the gripping member 2 to be positioned at a predetermined position. The driving means 7 includes the gripping means 5
Are driven to be displaced in a direction in which the mutual interval is reduced or enlarged along the predetermined arrangement direction. The moving means 8 is realized by a crane or the like, and moves each of the gripping means 5, the positioning means 6 and the driving means 7 in the vertical direction and the horizontal direction.

The gripping means 5 will be described in detail with reference to the perspective view of FIG. One end of the pair of link members 10a, 10b is attached to each of the pin bolts 11 near one end of the substantially U-shaped mounting member 9 (subscripts a, b ... Are attached to the same numeral when individually explained). The other end is pin-connected to the connecting plate 12a by the pin bolt 11. In parallel with the link members 10a, 10b, another pair of link members 13a, 13b are pin-joined to the connecting plate 12a at one end by pin bolts 11, and there is also a portion where the link members 13a, 13b overlap the mounting member 9. It is pin-connected by the pin bolt 11. In this way, the pair of link members 10a, 10b and the other pair of link members 13
The link means R is constituted by a and 13b, the mounting member 9, the connecting plate 12a, and each pin bolt 11. The gripping member 2 is attached to the link means R via the attachment piece 14. Spring receiving pieces 16 are provided on both end surfaces of the mounting piece 14, adjustment springs 17 are attached to the spring receiving pieces 16, and nuts 19 are attached via compression coil springs 18. The gripping member 2 is composed of an end plate 20 and an inner surface of the end plate 20, and is composed of a cushioning material 21 made of, for example, rubber or synthetic resin. It is mounted so as to be angularly displaceable as indicated by reference numeral A1. With such a configuration,
For example, when gripping a product having a taper surface in the gripping direction, the cushioning material 21 prevents the sandwiched product 4 from slipping, so that the product 4 can be gripped more firmly, and the gripping member 2 is provided along the taper surface. Is angularly displaced and comes into contact with the nut 19 to compress the compression coil spring 18, so that the product 4 can be elastically gripped.

The other ends of the link members 13a and 13b are angularly movably connected to the free end of a piston rod 23 provided in the cylinder 22 so as to be extendable and contractible. Further, the base end portion of the cylinder 22 is pin-coupled to a mounting portion 24 provided on the mounting member 9. The cylinder 22 displaces the gripping member 2 in a direction of approaching / separating from the gripping member 3.

Although the one end portion of the mounting member 9 has been described above, the gripping member 3 is attached to the other end portion in a similar configuration, provided that the link members 13c, 1c.
The ends of the 3d which are not connected to the connecting member 12b are attached to the pair of arms 25 by the pin bolts 11 so as to be angularly displaced.

FIG. 4 is a perspective view of a part of the sandwiching and conveying apparatus 1 viewed from the right side of FIG. 1, and based on this, the driving means 7 is shown.
Will be described in detail. The free end portion of the piston rod 31 that is provided to be expandable and contractable in the cylinder 30 is fixed to the mounting member 9a arranged on one end side in the arrangement direction of the mounting members 9a to 9e via the connecting member 32. The base end of the cylinder 30 is fixed to the mounting member 9e arranged on the other end side of the mounting members 9a to 9e in the arrangement direction via the connecting member 33.

A first link means 34 for connecting each of the mounting members 9a to 9e so as to extend and contract along the arrangement direction is provided on the upper surface on the one end side. The lengths of the sides of the quadrangle having the axes P1, P2, P3 and P4 of the first link means 34 are the same, and the others are also the same. The P
1, the axis on a straight line passing through P3 is the mounting members 9a-9
It is attached to the upper surface of e respectively. When the axes P1 and P3 are brought close to each other as shown in FIG.
2, P4 move in the direction away from each other. Even if the first link means 34 as described above expands and contracts, the distance ratio of the axes arranged in a straight line is constant.

Further, the mounting members 9a, 9c and 9e are provided with rollers 50 so as to be positioned on axes on a straight line passing through the P1 and P3, and a holding frame body 51 arranged above them.
The first rail 52 formed on the first rail 52 is guided. Rollers 53 are provided at the ends of the attachment members 9b and 9d so as to face upward, and are guided by the second rails 54 arranged in parallel to the inside of the first rails 52.

Further, a second link means 35 having the same structure as the first link means 34 is provided on the side surface on the one end side of the mounting members 9a to 9e, and the axis on a straight line passing through the axes P1 and P3 is the above-mentioned. They are attached to the side surfaces of the attachment members 9a to 9e, respectively.

When the cylinder 30 is driven, the attachment members 9a to 9e are interlocked by the first link means 34 and the second link means 35, that is, the gripping means 5 are interlocked with each other in the arrangement direction. Reduce or increase the spacing.

Also, on the other end side of the mounting members 9a to 9e,
It has the same structure as the one end side, except that the second link means 35 on the one end side is not provided, and the positioning means 6 is provided as shown in FIGS. 6 and 7. .

The positioning means 6 will be described in detail below. A comb-blade-shaped locking member 37 having a plurality of engagement grooves 36 is fixed to each end surface of the mounting members 9a to 9e. Further, of the mounting members 9a to 9e, a pair of support pieces 40 are fixed to the upper end surface of the mounting member 9c arranged at the center in the arrangement direction, and the tip end of each of the support pieces 40 is fixed by a pin bolt 11. Pins are coupled to one ends of the pair of movable pieces 41, and the other end of each movable piece 41 is connected to one end of the pair of movable pieces 42 by the pin bolt 1 respectively.
Pin-coupled by 1. Further, the operation lever 43 is fixed so as to connect the other ends of the respective movable pieces 42.

On the other hand, at each tip of the pair of arms 25,
Both ends of the locking pin 44 are fixed, and an inverted U-shaped connecting piece 4
Connected by 5. A rising piece 46 is fixed to the connecting piece 45, and each mounting member 9 is attached to the rising piece 46.
A connecting rod 47 is inserted so as to connect the rising pieces 46 arranged in a to 9e. Further, at this time, the connecting rod 47 is also inserted with the other end portions of the pair of movable pieces 42 also sandwiching the rising piece 46 of the arm 25 connected to the mounting member 9c.

By means of the connecting rod 47, each mounting member 9a
9e to the pair of arms 25 arranged on the operating lever 43
Can be operated and linked. Therefore, by operating the operating lever 43, the engagement pin 44 fixed between the pair of arms 25 is selectively engaged with the engagement groove 36 of the locking member 37.

The arm 25 is displaced in the arrow E1 and E2 directions corresponding to the engagement position of the engagement pin 44 in the engagement groove 36, whereby the link member 13c connects the attachment member 9 and the link member 13c. The pin bolt 11 is swung in the directions of arrows F1 and F2 around the axis P5. Corresponding to the swinging motion of the link member 13c, the remaining link member 10 is
c is displaced and the gripping member 3 is positioned according to the width of the product 4.

Referring again to FIG. 1, the holding frame body 51 is a suspension frame body composed of four leg portions 56a, 56b, 56c and 56d which extend radially from the central position where the locking ring 55 is provided and bend downward. Held at 57. The hook piece 59 supported by the chain 58 provided in the moving means 8 is locked to the locking ring 55, and the gripping means 5, the positioning means 6, and the driving means 7 are moved vertically and horizontally.

The product 4 moved by the sandwiching and conveying apparatus 1 is, for example, a groove lid, which is filled with concrete in a form frame divided by a partition plate or the like.
It is manufactured by curing for a certain period of time and curing, and a plurality of products 4 are manufactured at once in a state of being arranged in parallel. After the product 4 is hardened by the formwork, the formwork is unfolded and then the product 4
When taking out, the operation is performed in the following procedure. The gripping members 2, 3 of each gripping means 5 by the moving means 8
Are moved so as to correspond to the positions for gripping the products 4 arranged in parallel. The operation lever 43 sets the grip member 3 at a position corresponding to the width of the product 4. The control device 60 is provided on a support plate 62 that is hung on the holding frame 51, and operates by pushing a push button switch S provided on the operation surface of the control device 60. As the push button switch S, a switch such as Hanas, Tsumumu, Chijimu, Hirogaru is provided. A signal from the push button switch S is given to a control circuit built in the housing 61 having the support plate 62 as a bottom portion, and the gripping means 5 and the driving means 7 are output by the control circuit.
Are driven and controlled. After the holding member 2 of each gripping means 5 is moved and each product 4 is sandwiched between the holding members 2 and 3, in that state, the moving means 8 moves the product 4 in the vertical direction and the horizontal direction to remove the product 4 from the mold. The product 4 is taken out. After that, the taken out products 4 are brought close to each other by the driving means 7.

In this way, since a plurality of products 4 can be taken out from the form at once, workability can be improved, and a plurality of products 4 taken out can be brought close to each other. Taping becomes easier, which also improves workability.

[0026]

As described above, according to the present invention, since a plurality of gripping means are arranged along the predetermined arrangement direction, a plurality of objects can be gripped at one time. Further, the plurality of objects gripped by the gripping means are displaced and driven by the driving means in the direction of reducing or expanding the mutual interval along the predetermined arrangement direction. In addition, it is possible to save the trouble of bringing the extracted objects close to each other. Therefore, time and labor can be reduced and productivity can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view of a holding and conveying device 1 according to an embodiment of the present invention.

FIG. 2 is a perspective view of the pinching and conveying device 1 viewed from the left side of FIG.

FIG. 3 is a perspective view for explaining gripping means 5.

FIG. 4 is a perspective view of a part of the nipping and conveying device 1 viewed from the right side of FIG.

5 is a perspective view for explaining the operation of the driving means 7 in FIG.

FIG. 6 is a cross-sectional view for explaining a positioning unit 6.

FIG. 7 is a cross-sectional view for explaining a positioning unit 6.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Holding and conveying device 2,3 Gripping member 4 Product 5 Gripping means 6 Positioning means 7 Driving means 8 Moving means 9 Mounting member 22,30 Cylinder 23,31 Piston rod 34 First link means 35 Second link means 36 Engagement groove 43 Control lever 44 Engagement pin 60 Control device

Claims (1)

[Claims] 1. A pair of gripping members facing each other,
A plurality of gripping means for displacing one of the gripping members in a direction of approaching / separating from the other, gripping an object arranged between the gripping member and the other gripping member, or releasing the gripped state; Positioning means for positioning the gripping member of the gripping member close to or away from the one gripping member at a predetermined position, and a direction in which the distance between the gripping members is reduced or expanded along a predetermined arrangement direction. A sandwiching / conveying device comprising: a driving unit for driving displacement.