JPH0230344A - Conveying apparatus for blank - Google Patents

Abstract

PURPOSE:To rapidly control the cross directional position of grip jaws by engaging a driving body with an engaging body to turn a screw shaft, moving the grip jaws in the cross direction. CONSTITUTION:When a motor 121 of turning means 120 is turned, pulses corresponding to the rotating angle of the motor 121 are outputted from a rotating angle detecting device 124 and the driving body 100 meshed with a spline shaft 123 is turned. As the driving body 100 rotates at least by 1/2 rotation, a projection 101 of the driving body 100 is connected in a connecting groove 87 of the connecting body 82B, the connecting body 82B, is rotated with the driving body 100. As the rotating body 82B is rotated, the screw shaft 81B is rotated, one pair of the grip jaws 23B is moved in the cross direction. At this time, the pulses from the rotating angle detecting device 124 are calculated, if the calculated value is in accord with the interval set by a setter, the motor 121 of the turning means 120 is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a blank conveying device. In particular, the present invention relates to a blank conveying device that delivers blanks taken out one by one by a day stack feeder to a feed bar of a transfer.

[Prior Art] A blank conveying device as an intermediate conveying means is usually provided between a blank take-out position of a day stack feeder and a position where blanks are delivered to a feed bar of a transfer press.

As a conventional blank conveyance device, one is known in which the distance between a blank take-out position and a position where the blank is delivered to a feed bar is divided into equal parts, and the distance is conveyed as one pitch conveyance stroke. This is done by equipping a moving body with grip jaws and suction tools to grip the blank for each conveyance stroke, and by reciprocating this movable body for the length of the conveyance stroke, the blank at the blank take-out position is removed for one conveyance stroke. The configuration is such that the feed bar is conveyed in batches and delivered to the feed bar at I&F&.

Recently, in order to accommodate blanks of various shapes, a device is known in which the position of grip jaws, suction tools, etc. for gripping the blank can be adjusted in the width direction orthogonal to the conveying direction of the blank.

[Problems to be Solved by the Invention] However, in the conventional apparatus, particularly when adjusting the position of the grip jaws in the width direction, the operator manually performed the adjustment, which caused a problem in that the adjustment took time.

Therefore, in order to automate these operations, it is conceivable to mount a drive source on the movable body for adjusting the widthwise position of the grip jaws. However, this increases the load placed on the moving object, causes vibrations from the drive source, and has many problems with cable handling.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a blank conveying device that can solve these conventional problems and quickly adjust the widthwise position of the grip jaws.

[Means for Solving the Problems] Therefore, in the present invention, there is provided a movable body that is reciprocally movable in the conveyance direction of the blank, and a movable body that is provided in a width direction perpendicular to the reciprocating direction of the movable body. A pair of grip jaws that can freely reciprocate and hold the membrane-cut blank; a screw shaft that reciprocates each of the grip jaws in the width direction and has an engaging body at the end; A driving body provided on a body side corresponding to the engaging body and capable of engaging with the engaging body, a pressing means for pressing the driving body against the engaging body when the movable body is moved to a predetermined position, and this pressing means a rotating means for rotating the driving body in a state where it is pressed by the driving body or the engaging body;
It is characterized by having the following.

[Function] In a state where the movable body has been moved to a predetermined position, the pressing means is activated to press the driving body against the engaging body. In this state, when the rotating means is operated, the driving body engages with the engaging body and rotates the screw shaft, so that the grip jaws are moved in the width direction. In other words, the widthwise interval between the pair of grip jaws is adjusted. After this, the driving body can be removed from the engaging body and the blank can be transported.

Therefore, since the pressing means and rotation means for adjusting the position of the grip jaws in the width direction are provided on the machine body side, that is, they are not provided on the moving body side, the load on the moving body does not increase, and vibrations can be reduced. The position of the grip jaws in the width direction can be quickly adjusted without any problem with cable handling.

[Example] Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 6 shows the front of this embodiment. In the same figure,
A blank supply device 2 is installed near one side of the transfer press 1. The blank supply device 2 is located above the stacked blanks 3 which are sequentially pushed up from below by a lift cylinder 4 and after the top layer blanks 3 are separated one by one by a magnetic separation device 5. The cylinder 6, which is sucked onto a suction tool 7 of the cylinder 6 and taken out upward, is vertically supported by a frame 8 provided on one side of the press 1.

Two guides 411 are provided at the bottom of the frame 8 along the conveyance direction of the blank 3 (left-right direction in FIG. 1).
A movable body 13 is inserted into both guide grooves 11 via rollers 12.
is provided so as to be able to freely reciprocate, that is, to be able to freely reciprocate in the conveying direction of the blank 3.

A connecting member 14 is fixed to the upper surface of the moving body 13.

The connecting member 14 is connected to a chain 17 provided parallel to the reciprocating direction of the movable body 13 via a pair of sprockets 15 and 16. Rotation from a motor 19 capable of forward and reverse rotation is transmitted via a chain 20 to another sprocket 18 provided coaxially with the rear sprocket 15 . Therefore, by the forward and reverse rotation of the motor 19,
The moving body 13 performs an advance return operation.

The stroke of advance return operation is motor 19.
It can be varied by changing the rotation angle of the cylinder 6, but here it is set to a length S obtained by dividing the distance from the blank supply position [B of the cylinder 6 to the position C where the blank 3 is delivered to the feed bar into four equal parts.

Further, as shown in FIG. 7, on the rear end surface of the moving body 13,
A guide rail 2 having a guide spring 21 along the width direction perpendicular to the reciprocating direction of the movable body 13 on the upper and lower sides.
2 is installed. The guide rail 22 is provided with a pair of left and right grip jaws 23A, 23B that slidably engage with the upper and lower guide erasers 21 and are movable reciprocally in the width direction perpendicular to the reciprocating direction of the movable body 13. ing.

The distance between the grip jaws 23A, 23B and the blank supply position B corresponds to the conveyance stroke S when the movable body 13 is in the advance position (the state shown in FIG. 6).

Each grip jaw 23A23B has cylinders 24A, 2
A pair of upper and lower claws 25A, 25 that are opened and closed by the operation of 4B.
Equipped with B.

Therefore, by adjusting the interval between the pair of grip jaws 23A, 23B according to the width of the blank 3, both sides of the blank 3 can be held between the pair of grip jaws 23A, 23B.

In addition, each grip jaw 23A is provided on the guide rail 22.
, 23B and have engaging bodies 82A, 82B at their outer ends. On the other hand, in the state where the movable body 13 has been moved to the blank take-out position B, each screw shaft 81A, 81
On the body side corresponding to the engaging bodies 82A, 82B of B, each screw shaft 81A, 81B engages with each engaging body 82A, 82B.
Width adjustment devices 91A and 91B are provided for forcibly rotating the width adjusting devices 91A and 91B.

Therefore, the engaging bodies 82A, 82 of each screw shaft 81A, 81B
The specific configuration of the width adjustment devices 91A and 91B will be explained with reference to FIGS. 1 to 5. Note that here, since the structure is bilaterally symmetrical, the engaging body 82B of the screw shaft 81B between one side
and the width adjustment device 91B will be explained, and the explanation of the other side will be omitted.

In FIG. 1, a member 84 having an inner #I83 is attached to the outer end of the guide rail 22 holding the screw shaft 81B, and a key 8 is attached to the outer end of the screw shaft 81B.
5, the engaging body 82B is attached so as to be movable in the axial direction. The engagement body 82B has a gear 86 that meshes with the internal teeth 83 formed on its outer peripheral surface between its bases, and an engagement groove 87 formed on its outer end surface. Engagement groove 8
As shown in FIG. 2, 7 is formed into a straight line with a constant width passing through the center of the screw shaft 81B. An engaging body 8 is provided between the engaging body 82B and a bracket 88 that holds the screw shaft 81B.
The engaging body 82 moves in the direction in which the gear 86 of 2B meshes with the internal teeth 83.
Eight springs are interposed to bias B.

The width adjusting device 91B includes a driving body 100 disposed on the machine body side corresponding to the engaging body 82B of the screw shaft 81B when the movable body 13 is moved to the blank take-out position B;
Pressing means 1 for pressing this driving body 100 against the engaging body 82B
10, a rotating means 120 for rotating the driving body 100 in a state where the driving body 100 is pressed by the engaging body 82B,
It is comprised of a control means 130 (see FIG. 5) that controls the motor, pressing means 110, and rotation means 120 to adjust the distance between the pair of grip jaws 23A, 23B.

As shown in FIG. 3, the driving body 100 includes the engaging body 82.
A protrusion 10 that fits into the engagement groove 87 on the end face facing B
1 is formed, and a spline hole 102 is formed penetratingly in the direction of the central axis.

The pressing means 110 includes a movable block 113 supported by a rail 111 provided on the machine body via rollers 112 so as to be movable in the axial direction of the screw shaft 81B, and the movable block 1
13 and the driving body 100, a cylinder 115 that moves the movable block 113 in the axial direction of the screw shaft 81B, and two proximity switches 116 and 117 that control the operation of the cylinder 115. It consists of An elastic member 118 is interposed between the connecting member 114, the driving body 100, and the connecting portion.

In the proximity switch 116, the driving body 100 contacts the engaging body 82B, and pushes the engaging body 82B against the spring 89 so that the internal tooth 8
3, the proximity switch 117 detects the forward limit position where the drive body 100 is separated from the engaging body 82B, and the backward limit position where the drive body 100 is separated from the engagement body 82B, and outputs a signal to stop the operation of the cylinder 115.

The rotating means 120 includes a motor 121 fixed to the lower surface of the rail 111, and a spline shaft 123 that is integrally provided at the tip of an output shaft 122 of the motor 121 and meshes with the spline hole 102 of the drive body 100. Equipped with A rotation angle detection device 124 for detecting the rotation angle of the motor 121 is installed in the middle of the output shaft 122.
A rotating body 126 is fixed to 23 via a key and has five notches 125 formed at equal intervals on its outer periphery, and a pulse signal is arranged to sandwich the outer periphery of this rotating body 126 to indicate passage through the notches 125. It is composed of a detector 127 that outputs as follows.

The control means 130 includes, as shown in FIG. 5, a setting device 131 for setting the widthwise interval between the pair of grip jaws 23A, 23B, the rotation angle detection device 124, and a control circuit 132, as shown in FIG. The motor 19, the pressing means 110, and the rotating means 120 are controlled according to the flowchart. Note that these details will be explained in the operation section according to the flowchart of FIG. 9.

On the other hand, in the state shown in FIG.
An elevating table 27 is provided below A and 23B so that it can be raised and lowered by the operation of a cylinder 28, and a magnet 29 is provided on the upper surface of this elevating table 27. As a result, when the pair of grip jaws 23A and 23B receive the blank 3 from the suction tool 7 of the cylinder 6 and move to the advance position along with the movable body 13, the lifting table 27 is raised by the operation of the cylinder 28. Here, when the pair of grip jaws 23A and 23B release the blank 3, the blank 3 becomes attracted to the magnet 29 on the lifting table 27. After this, the lifting table 27 returns to its original position, while the grip jaw 23
A and 23B are returned together with the moving body 13.

Further, an elevating body 33 is horizontally suspended from the lower surface of the movable body 13 via links 31 and 32. link 31
is a long groove 3 whose upper end is rotatably supported by the movable body 13 and whose lower end is formed horizontally on the elevating body 33.
4 and is slidably engaged within. The link 32 has an intermediate portion rotatably supported by the movable body 13, and a lower end formed in a long groove 3 horizontally formed in the elevating body 33.
5 and is slidably engaged within. The upper end of the link 32 is connected to the cylinder 3 rotatably supported by the connecting member 14.
It is connected to the piston rod of 6.

Both links 31 and 32 are connected by a horizontal connecting rod 37, and between both links 31 and 32, the elevating body 3
A shaft 38 is provided protruding from the upper surface of 3. The upper part of the shaft 38 is inserted into a hole 39 provided in the movable body 13 via a spherical bearing 40. Therefore, when the cylinder 36 is actuated, both links 31 and 32 swing in conjunction with each other, so that the elevating body 33 is raised and lowered, that is, lifted and lowered. At this time, a force acts on the elevating body 33 in the moving direction of the movable body 13, but since the movement in the moving direction of the movable body 13 is restricted by the shaft 38 of the elevating body 33, it is raised and lowered only in the vertical direction. .

The elevating body 33 includes a pair of frames 41 and 42 at the front and rear. Inside each frame 41, 42, as shown in FIGS. 7 and 8,
Rack members 43, 44 and guide bars 45, 46 are supported vertically and in the width direction perpendicular to the reciprocating direction of the movable body 13, respectively. A rack member 43, a guide bar 45, and a rack member 44 that face each other vertically
A pair of left and right movable blocks 47A, 47B, 48A, and 48B are movably provided on the guide bar 46 and the guide bar 46, respectively.

Screw shafts 49A, 49 are provided between the front and rear movable blocks 47A, 48A and the movable blocks 47B, 48B.
B is rotatably supported through the movable body 13 in parallel with the reciprocating direction of the movable body 13. Each threaded shaft 49A, 49B has three threaded parts 49A1 to 49A3.49 with different thread pitches.
B1 to 49B3 are formed. Here, the threaded part 4
For the thread pitch of 9A149B1, the threaded part 49A2
゜49B2 thread pitch is double, thread part 49A3゜49
The thread pitch of B3 is tripled.

Bevel gear 50A at the rear end of each screw shaft 49A, 49B
50B is fixed. These bevel gears 50A, 50
B is meshed with bevel gears 52A and 52B that are slidably engaged with respective spline shafts 51A and 51B that are perpendicular to the threaded shafts 49A and 49B. Each bevel gear 52A, 52B is connected to each movable block 4 by a contact plate 53A, 53B provided on each movable block 47A, 47B.
7A, 4.7B are simultaneously moved along the spline shafts 51A, 51B. In addition, each spline shaft 51A, 51
B is rotatably supported within the frame 41 parallel to and independently of the axes of the rack member 43 and the guide bar 45, and its outer end projects outside the frame 41. Therefore, when a handle or the like is attached to the protruding end of each spline shaft 51A, 51B and rotated, the spline shaft 51A
, 51B are rotated by bevel gears 52A, 52B, 50A, 5
Since the power is transmitted to the screw shafts 49A and 49B via 0B, the screw shafts 49A and 49B can be rotated independently.

Each threaded portion 49A1 to 49A3 of the threaded shaft 49A, 49B,
49B1 to 49B3 each have a suction tool holding member 61.
A to 63A and 61B to 63B are the grip jaws 23
A and 23B are screwed together at intervals of transport stroke S. Suction tool holding members 61A to 63A, 61B to each row
A pair of left and right suction tools 64 are replaceably attached to both sides of the lower surface of 63B. In addition, each row of suction tool holding members 6
Engagement members 60 having spline holes are rotatably held at the upper portions of 1A to 63A and 61B to 63B. These suction tool holding members 6 are attached to the engaging members 60 in each row.
1A to 63A, 61B to 63B to screw shafts 49A, 49B
Spline shafts 65A and 65B which are movably but unrotatably supported in the axial direction are penetrated therethrough.

Each spline shaft 65A, 65B has movable blocks 47A, 48A, and 47B facing each other in the front and rear.

It is rotatably supported between screw shafts 48B parallel to the axes of screw shafts 49A and 49B. Therefore, each screw shaft 49A, 4
When 9B is rotated, each row of suction tool holding members 61A to 6
3A, 61B to 63B are rotationally restricted by spline shafts 65A, 65B, and therefore are moved along the axial direction of screw shafts 49A, 49B. At this time, the suction tool holding member 61A.

With respect to the movement amount of 61B, the suction tool holding member 62A.

The amount of movement of 62B is twice that of suction tool holding member 63A.

The amount of movement of 63B is three times. Therefore, from the pair of grip jaws 23A, 23B, the suction tool holding members 61A, 61
Spacing up to B and suction tool holding members 61A to 63 in each row
The intervals between A and 61B to 63B are equal to each other.

A connecting member 71 is provided at the rear end of each spline shaft 65A, 65B.
A, 71B is the spline shaft 65A.

This connecting member 7 is rotatably attached to 65B.
1A and 71B have spline shafts 65A.

Separate screw shafts 72A and 72B perpendicular to 65B are screwed together, respectively. Each of the screw shafts 72A, 72B is rotatably supported within the frame 41 parallel to the axes of the spline shafts 51A, 51B and independently, and has an outer end protruding outside the frame 41. Therefore, when a handle or the like is attached to the protruding end of each screw shaft 72A, 72B and rotated, the screw shaft 72A.

The connecting members 71A and 71B that are screwed into the screw shaft 72B are
Since the suction tool holding members 61A to 63A, 6 of each row move in the axial direction of A and 72B, that is, in the width direction of the blank 3,
The width direction positions of 1B to 63B can be adjusted independently.

Also, pinions 73A, 7 are provided at both ends of each spline shaft 65A, 65B to be screwed into the rack members 43, 44.
3B, 74A, and 74B are fixed. Therefore, due to the rotation of the screw shafts 72A, 72B, the connecting members 71A, 7
1B is the screw shaft 72A.

When trying to move in the axial direction of 72B, the pinion 73
A, 73B, 74A, 74B rotate while being screwed to the rack member 43, 44, so each spline shaft 65
The amount of movement on both ends of A- and 65B can be made equal to each other.

Next, the operation of this embodiment will be explained.

First, according to the width dimension of the blank 3, the distance between the pair of grip jaws 23A and 23B and the distance between the suction tool holding members 61A to 63A and 61B to 63B in each row are adjusted, respectively.

To adjust the distance between the pair of grip jaws 23A, 23B, the distance between the pair of grip jaws 23A, 23B is set in the setting device 131 of the control means 130. Then, the control circuit 132 executes processing according to the flowchart shown in FIG.

First, the motor 19 is driven to position the movable body 13 at the blank retrieval position B. Next, the width adjustment devices 91A and 91B
The pressing means 110, that is, the cylinder 115 is activated. Then, the movable block 113 moves to the left in FIG. 1 along the rail 111. The driving body 100 is the engaging body 82A
, 82B, when the engaging bodies 82A, 82B are further pushed against the spring 89, the engaging bodies 82A, 82
The B gear 83 comes off from the internal teeth 83. At this time, the operation of the cylinder 115 is stopped by a signal from the proximity switch 116.

Subsequently, the motor 121 of the rotation means 120 is rotated.

When the motor 121 rotates, the rotation angle detection device 124 outputs a pulse corresponding to the rotation angle of the motor 121.
0 is rotated. When the driving body 100 rotates at least 1/2, the protrusion 101 of the driving body 100 engages the engaging bodies 82A, 8.
2B, the engaging bodies 82A and 82B are thereafter rotated together with the driving body 100. Each engaging body 8
When the screw shafts 2A and 82B rotate, the screw shafts 81A81B rotate, so that the pair of grip jaws 23A23B are moved in the width direction as the screw shafts 81A and 81B rotate.

Here, pulses from the rotation angle detection device 124 are counted,
When the counted value matches the interval set by the setting device 131, the motor 121 of the rotating means 120 is stopped. Subsequently, the operation of the cylinder 115 of the pressing means 110 is released. That is, the cylinder 115 is operated in the opposite direction. Then, since the driving body 100 moves to the right in FIG.
Due to this action, it moves to the right in FIG. 1 and meshes with the external teeth 83. This restricts the rotation of the engaging bodies 82A, 82B, that is, the rotation of the screw shafts 81A, 81B, so that the distance between the pair of grip jaws 23A, 23B is maintained.

On the other hand, to adjust the distance between the suction tool holding members 61A to 63A and the suction tool holding members 61B to 63B, rotate both screw shafts 72A and 72B, respectively, so that the spline shafts 65A and 65B align with their axes. Since the suction tool holding members 61A to 63 are moved in parallel in a direction perpendicular to the
The intervals between A and 61B to 63B are made to correspond to the width of the blank 4.

At this time, the movement of both ends of each spline shaft 65A, 65B is by pinions 73A, 74A, and 73B.

74B and the rack members 43 and 44, there is no deviation in the amount of movement.

In this way, the pair of gripping jaws 23A.

23B interval and suction tool holding members 61A to 63 in each row
After adjusting the intervals between A and 61B to 63B, the blank 3 is transported.

In the state shown in FIG. 6, the cylinder 6 is lowered to cause the suction tool 7 to adsorb the blank 3, and then the cylinder 6 is raised. At the same time, the movable body 13 is returned by the conveyance stroke by driving the motor 19, and the pair of grip jaws 23
Both sides of the blank 3 are held between A and 23B.

Thereafter, when the movable body 13 is advanced by the transport stroke by reverse driving of the motor 19, the blank 3 held between the pair of grip jaws 23A and 23B is moved to the top of the lifting table 27.

Here, when the grip jaws 23A and 23B are opened after raising the lifting table 27, the blank 3 supported by the grip jaws 23A and 23B is attracted to the two magnets. Thereafter, while the elevating table 27 is lowered, the operation of transferring the blank 3 received from the suction tool 7 of the cylinder 6 to the elevating table 27 is repeated in connection with the advance return operation of the movable body 13.

On the other hand, the blank 3 on the lifting table 27 is
In connection with the advance return operation and the lift-down operation of the elevating body 33, the suction tool holding members 61A
~ 63A, 618 ~ 63B sequentially convey by the conveyance stroke and delivered to the feed bar of the transfer.

That is, when the elevating body 33 is in the lifted state, the movable body 1
3, the first suction tool holding member 61A,
61B is located on the lifting table 27. Here, when the elevating body 33 is lowered by the operation of the cylinder 36, the elevating table 27 is attached to the first suction tool holding members 61A and 61B.
The upper blank 3 is suctioned. After this, cylinder 36
The elevating body 33 is lifted by the operation.

In this state, by the advance operation of the movable body 13, the blank 3 sucked by the first suction tool holding members 61A, 61B is conveyed by the conveyance stroke and is conveyed to the next stage. When the blank 3 is transported to the next stage, the elevating body 33 is lowered by the operation of the cylinder 36 again, and the blank 3 adsorbed by the first suction tool holding members 61A and 61B is transferred to the next stage. After this, the elevating body 33 is lifted by the operation of the cylinder 36,
Return to the initial state.

The blank 3 transferred onto the first stage is similarly transferred to the second and third suction tool holding members 62A.

It is sequentially conveyed to the second and third stages by 62B, 63A, and 63B, and finally delivered to the feed bar.

By the way, when changing the position C at which the blank 3 is delivered to the feed bar in the conveying direction of the blank 3, the spline shafts 51A and 51B are rotated.

Then, the rotation of the spline shafts 51A, 51B is caused by the rotation of the screw shaft 4 via the bevel gears 52A, 50A, 52B, 50B.
9A, 49B, each screw shaft 49A,
49B threaded part 49A1-49A3.49B1-49B
3, suction tool holding members 61A to 63A, 61B screwed together.
-63B are moved in the axial direction of the screw shafts 49A and 49B. Therefore, in this way, the grip jaws 23A,
23B to suction tool holding members 61A, 61. Intervals up to B and suction tool holding members 61A to 63A, 61B to each row
6. Set the interval in the conveying direction between 63B to an interval equal to 4 equal parts of the distance from the blank take-out position B to the delivery position C.
, t, the conveyance stroke of the motor 19 may be set to the above-mentioned interval.

Therefore, according to this embodiment, the pair of grip jaws 23
Screw shafts 81A and 81 that reciprocate A and 23B in the width direction
B is provided with engaging bodies 82A and 82B, and on the other hand, this engaging body 8
2A, 82B to rotate the screw shafts 81A, 81B.

91B is provided on the body side, the widthwise distance between the pair of grip jaws 23A and 23B can be automatically adjusted without increasing the load on the moving body 13 and without problems such as vibration or cable handling. can do.

In addition, the width adjustment devices 91A and 91B are connected to the engaging bodies 82A and 82A.
2B, the driving body 100, the pressing means 110, the rotating means 120, and the controlling means 130,
Conveyance of the blank 3 is not hindered at all times. Moreover, the pair of gripping jaws 23 are controlled by the control means 130.
When the interval in the width direction of A and 23B or the set interval is reached, the rotating means 120 is stopped and the pressing means 110 is released, so that the pair of grip jaws 23A
, 23B in the width direction can be automatically and accurately adjusted to the set interval. Furthermore, when the pressing means 110 is released, engagement #82A occurs.

The gear 86 of 82B meshes with the internal teeth 83, and the engaging body 82A,
Since the rotation of 82B is restricted, the widthwise interval between the pair of grip jaws 23A, 23B can be maintained at a set interval.

In addition, since the width direction position of the suction tool holding members 61A to 63A and the suction tool holding members 61B to 63B side and the position in the conveyance direction of the blank 3 can be adjusted independently, the conveyance of irregularly shaped blanks and blanks with holes is made possible. It can also be applied to

In addition, when adjusting the width direction position, the spline shaft 6
Screw shafts 72A, 72 arranged orthogonally to 5A, 65B
This is extremely simple as all you have to do is rotate B. Moreover, it has a spline shaft 65A.

Binions 73A, 73B, 74A, 7 on both ends of 65B.
4B are provided respectively, and the rack members 43 and 44 are meshed with the rack members 43 and 4B, so that parallel movement can always be performed without causing a difference in the amount of movement on both ends.

In addition, when adjusting the position in the conveyance direction, the screw shaft 49A
, 49B and a spline shaft 51 . A,
This is extremely simple since all you have to do is rotate 51B.

In addition, in the above embodiment, the pair of grip jaws 23A,
23B, screw shafts 81A are screwed into each other.

81B, and these are each connected to separate width adjustment devices 91A.
, 91B, one screw shaft is formed with opposite threads, and the grip jaws 23A, 23B are screwed into each threaded portion, so that the pair of grip jaws are rotated by the rotation of the screw shaft. A single width adjustment device may be sufficient as long as the width adjustment device moves toward and away from each other.

[Effects of the Invention] As described above, according to the present invention, the distance between the pair of grip jaws in the width direction can be quickly adjusted according to the width dimension of the blank.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a sectional view showing the width adjustment device, Fig. 2 is a front view showing the engaging body, Fig. 3 is a front view showing the driving body, and Fig. 4 is a front view showing the engaging body. 5 is a block diagram showing the control means, FIG. 6 is a sectional view showing the whole, FIG. 7 is a bottom view showing the moving body part, and FIG. 8 is a diagram showing the rotation angle detection device.
The figure shows movement a' of the suction tool holding member! FIG. 9, which is a perspective view showing f4, is a flowchart. 3... Blank, 13... Moving body, 23A, 23B... Grip jaws 81A, 81B... Screw shaft, 82A, 82B... Engaging body, 100... Drive body, 110... Pressing means, 120... Rotating means.

Claims (1)

[Claims] (1) A moving body provided to be able to reciprocate in the conveying direction of the blank, and a pair of grips provided on this moving body to be able to reciprocate in the width direction orthogonal to the reciprocating direction of the moving body to sandwich the blank. a screw shaft that reciprocates each of the gripping jaws in the width direction and has an engaging body at its end; and the movable body is provided on a side of the machine corresponding to the engaging body of the screw shaft at a predetermined position, and the engaging body a driving body that can be engaged with the engaging body; pressing means that presses the driving body against the engaging body when the moving body has been moved to a predetermined position; and pressing means that presses the driving body against the engaging body when the moving body is moved to a predetermined position; A blank conveying device characterized by comprising a rotating means for rotating a body.