JPH0144191Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to a stack feeder used to feed blanks one by one to a press machine, and in particular, the invention relates to a stack feeder used to feed blanks one by one to a press machine. The present invention relates to a blank material moving device used when supplying materials.

[Background technology and its problems]

Conventionally, blanks are supplied to a stack feeder by stacking blanks punched by a blanking press to a predetermined height, wrapping this stack with wire, and hoisting the wire, a so-called slinging operation. Therefore, it is fed directly onto the lift plate of the stack feeder.

However, this method of feeding stack-shaped blanks directly onto the lift plate of the stack feeder using a crane has the problem of being operated in a narrow area and being extremely inefficient. be. For this reason, it has been desired to efficiently supply blanks to a disk feeder, and in particular to develop a device for moving the blanks.

[Purpose of invention]

The purpose of the present invention is to efficiently and easily move blanks into the stack feeder even when the blanks are irregularly shaped. The present invention provides a blank material moving device for a stack feeder.

[Means and actions for solving problems]

In the present invention, a roller shaft is provided both inside and outside the main body frame, and a stack of blanks placed on the roller shaft outside the main body frame is pulled in by a blank material moving device, and this blank material moving device has the following features: The hook bracket, which is moved forward and backward by a push-pull connection means such as a chain, has a retractable hook that is always urged to protrude from the roller chute, and the push-pull connection means having the hook bracket with the hook is at least connected to the roller chute. Two hook protrusion and depression detection means are provided along the extension direction and detect that the hook has passed through a pile of blank materials when the hook protrudes and retracts; The hooks are configured to be associated with driving means driven by the respective driving means, so that each hook is projected onto the roller chute after passing through a pile of blanks by the respective driving means, and is engaged with the rear end of the blank in the retraction direction. By stopping the driving means in this state by the hook protrusion/retraction detection means, each hook can be appropriately latched to the end face of the blank material even if the blank material is of an irregular shape, and this hook can be By driving the driving means in the retracting direction while the blank is locked, the hook is retracted via the push-pull connecting means and the hook bracket, and this retracting action places the hook on the roller chute outside the main body frame. This object is achieved by drawing the blank material into the main body frame.

〔Example〕

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

In Figures 1 and 2 showing the overall configuration,
A main body frame 1 of the disk feeder is provided with a plurality of rows, for example, four rows of fixed roller chute 3 having a large number of rollers 2, and among these four rows of fixed roller chute 3, two rows of fixed roller chute located in the center side are provided. A chain guide 4 as a guide member is fixed to the outer surface of each of the chain guides 3, respectively. At this time, the interrupted portions on the rear end side of the fixed roller chute 3, that is, the lower end side in FIG. 1, are arranged in three rows so as not to interfere with the movement of the backing plate 16, which will be described later.

Between the two rows of chain guides 4 and at positions on both sides thereof, a lifting roller chute 6 consisting of a large number of rollers 5 that can penetrate the horizontal plate of the main body frame 1 and be arranged at the same height position as the fixed roller chute 3 is provided. A total of three lift plates 7 each having one row are provided so as to be movable up and down. These lift plates 7 are each connected to a connecting plate 9 via a support 8, and this connecting plate 9
is connected to the piston rod 11 of a lift cylinder 10 (see FIG. 2) fixed to the main body frame 1, and is placed on the lifting roller chute 6 via the lift plate 7 as the piston rod 11 rises. The blank material 12 can be raised to a predetermined height. At this time, the support column 8 is arranged at a position where it does not interfere with the chain guide 4, and is set to have a sufficient length to correspond to the upward stroke of the piston rod 11.

As shown in FIG. 2, a pair of front and rear support frames 13 are erected on the main body frame 1, and one of them, that is, the left support frame 13, has blanks stacked at a predetermined height. Material 1
An insertion hole 14 is formed that is large enough to allow the insertion of the 2. Further, a front end stop device 15 is provided at the lower part of the other support frame 13. This front end stop device 15 is connected to the fixed roller chute 3.
and a plurality of backing plates 16 that are provided at positions that do not interfere with the lifting roller chute 6 and abut against the leading end of the blank material 12 in the conveyance direction, and a plurality of backing plates 16 that support these backing plates 16 and that are arranged in a position that does not interfere with the lifting roller chute 6. It is composed of a central feed screw shaft mechanism 17 that is moved and adjusted in the middle and left and right directions, and a pair of guides 18 that are connected to the abutment plate 16 at the upper and lower positions of the feed screw shaft mechanism 17, respectively. As a result, the front end of the blank material 12 in the conveyance direction comes into contact with the front end stop device 15, so that the blank material 12
The mounting position on the lifting roller chute 6 is set.

Further, a centering device 20 is provided on the upper part of the pair of support frames 13, and this centering device 20 is connected to the lifting roller chute 6.
A pair of pressing plates 21 press both sides of the blank material 12 placed above and pushed up by the blank material 12 to position the stack of blank materials 12 in the center position, and a pair of pressing plates 21 are provided on each of these pressing plates 21. A pair of pressing cylinders 22 to which the tips of piston rods are rotatably connected and each fixed to the support frame 13, and each of these pressing cylinders 22.
The guide bar 23 is comprised of a total of four guide bars 23 on the left and right sides, each pair supported by the support frame 13 at the upper and lower positions of the guide bar 23 .

Further, on the upper surface of the pair of support frames 13, there are rails 2 extending in a direction perpendicular to the plane of the paper in FIG.
4 are mounted and fixed, respectively, and two floating devices 25, front and rear, are provided on these rails 24 (see FIG. 1). These floating devices 25 include a frame 26 formed in a frame shape,
A plurality of wheels 27 are rotatably supported at the lower part of the frame 26 and abut against the rails 24, and a blank material separation mechanism is attached to the frame 26 so as to be adjustable in position and includes a magnet, a holding mechanism, etc. It consists of 28. These pair of floating devices 2
5 is movable along the rail 24 from a position above the main body frame 1 to a left or right position away from the main body frame 1 in FIG. At this time, the reason why two floating devices 25 are provided is that while one floating device 25 is positioned on the main body frame 1 and the blank material 12 is being separated, the other floating device 25 is At a position away from the main body frame 1, a blank member separation mechanism 28 is installed so as to correspond to the next blank material 12 having a different shape.
This is to preset the floating device 25 on the main body frame 1 when using blank materials 12 of different shapes.
4 from above the main body frame 1, and on the other hand, the other floating device 25, in which the blank material separation mechanism 28 has been set in advance to match the new shape of the blank material 12, is positioned on the main body frame 1. The separation operation of a new blank material 12 is performed immediately after the separation of a new blank material 12, thereby improving the efficiency of the setup operation.

Above the main body frame 1, a blank material 12 separated by the floating device 25 is provided.
A blank material transfer device 30 is provided to take out the blank material one by one and convey it to a press machine (not shown) or the like. A fixed frame 31 of the blank material transfer device 30 is provided with a stack cylinder 32 for sucking the separated blank materials 12 one by one, and a movable frame 33 is movable to the fixed frame 31. A plurality of vacuum suction cups or magnetic suction cups (not shown) are provided at predetermined intervals, and the blank material 12 suctioned by the disk stack cylinder 32 is transferred between the suction cups provided on the movable frame 33 and the blank material. By sequentially communicating with a fixed suction cup (also not shown) provided on the fixed frame 31 side of the transfer device 30, the blank material 12 can be transferred to the press machine at predetermined pitches. Further, a discharge gutter 34 is provided below the suction cup of the blank material transfer device 30, which is located one pitch inside of the data stack cylinder 32, so that the suction cup 34, which is inadvertently sucked by the data stack cylinder 32, is disposed under the suction cup. drop one of the two blank materials 12,
It is designed so that it can be discharged to the outside from a discharge gutter 34.

A base plate 35 is provided at one side of the main frame 1, a cylinder 36 is fixed to the base plate 35, and a lifting table 38 is rotatably supported at the tip of a piston rod 37 of the cylinder 36. This lifting table 38 can be moved up and down while maintaining a horizontal position by a pair of guide bars 39 supported by the base plate 35. This lifting table 38 is provided with two sets of chain guides 40 as guide members having the same shape as the chain guide 4 (see FIG. 3). These chain guides 40 are
In the state shown in FIG. 2 in which the piston rod 37 of the cylinder 36 has advanced, the piston rod 37 of the cylinder 36 is arranged to face each of the plurality of chain guides 4 provided on the main body frame 1 side, and the piston rod 37 has advanced. In this state, the chain guide 40 and the chain guide 4 are arranged in a substantially straight line.

As shown in FIG. 3, each of the chain guides 40 and the chain guide 4 has a bottom plate 40A.
and 4A, and guide blocks 40B and 4B that are assembled and fixed to the longitudinally extending side edges of these bottom plates 40A and 4A, respectively. Each of these guide blocks 40B and 4B
These are chain guide blocks 40C and 4C made up of a pair of plate materials separated vertically by a predetermined distance, and roller guide blocks 40D and 40C made of a pair of plate materials provided inside the chain guide blocks 40C and 4C and also separated by a predetermined distance. 4D, and chain covers 40E and 4E provided outside the chain guide blocks 40C and 4C. Within the chain guide blocks 40C and 4C of these chain guides 40 and 4, chains 41 as push/pull connection means are housed so as to be movable forward and backward, and a shaft 42A is attached to the tip of each chain 41.
A pair of hook brackets 43 made of plates spaced apart by a predetermined distance are connected to each other via the respective hook brackets 43. This hook bracket 43 is held at a predetermined distance by the shaft 42A and a shaft 42B equivalent to this shaft 42A, and is
A total of four rollers 44, two pairs front and rear, are rotatably supported on the portions projecting from both hook brackets 43 of B, and these rollers 44 are connected to each roller guide block 40D and 4D of the chain guides 40 and 4 , so that the hook bracket 43 can move smoothly within the chain guides 40 and 4. Further, a substantially arrowhead-shaped hook 46 is supported between the hook brackets 43 via a support shaft 45 so as to be able to rise and fall.
This hook 46 is always biased counterclockwise in FIG. 3 by a tension coil spring 47 stretched between its tip and a pin 47A passed between the front and rear plates of the hook bracket 43. Accordingly, the upper rear end of the hook 46 is made to protrude upward from the gap between each pair of gadblocks 40B and 4B of the chain guides 40 and 4. At this time, the hook 46 is prevented from rotating by abutting the lower surface of its tip against the shaft 42B.
The position shown in FIG. 3 is maintained. Further, at a position facing the rear rising surface 46A of the hook 46, the hook bracket 43 is provided with a switch 48 consisting of a proximity switch or the like as a means for detecting hook elevation via a support bracket 48A. has a predetermined gap with the rear rising surface 46A, and as the rear rising surface 46A moves away from and approaches the tip of the switch 48 once as the hook 46 rises and falls once, the hook 46 By turning the switch 48 on and off twice, it is detected that the switch 48 has been turned on and off once. Furthermore, one side of the upper part of the hook 46 is formed into a cylindrical shape, and when it comes into contact with the end surface of the blank materials 12 stacked at a predetermined height, it remains in close contact with the end surface of the blank materials 12 even if the end surface of the blank materials 12 is an inclined surface. It is now possible to come into contact with it.

A pair of rails 50 are provided on the base plate 35, and two movable carts 52 each having a plurality of wheels 51 are movably mounted on these rails 50. are integrally connected by a connecting rod 53 (first
(see figure). A magazine 55 is removably placed on each of these movable carts 52, and the magazine 55 is removably housed in a frame 57 having lifting hooks 56 at four locations on its circumferential surface. For example, three rows of movable roller chute 58
Each movable roller chute 58 has a plurality of rollers 59. At this time, these three rows of movable roller chute 58 are prevented from interfering with the hook 46 protruding from the chain guide 40, and are capable of being protruded from a locking means (not shown), for example, on the movable roller chute 58 side, and are not always provided. The movable roller chute 58 is secured to the frame 57 at a predetermined position with a predetermined locking force by a locking means consisting of a locking protrusion biased in the projecting direction by a spring and a groove provided in the inner circumferential wall of the frame 57. It is becoming locked. Furthermore, the positions at which these movable roller shoots 58 are engaged with the frame 57 and the number of movable roller shoots 58 are appropriately determined depending on the shape of the blank material 12.

Further, the structure of the supporting portion of the movable roller chute 58 in the frame body 57 of the magazine 55 and the supporting portion of the magazine 55 of the movable trolley 52 are also formed so as not to interfere with the chain guide 40 that moves up and down together with the lifting table 38.

Of the two connected movable carts 52, one of them, that is, the right movable cart 52 in FIG. is placed at a position away from the main body frame 1, and a magazine 55 loaded with blanks 12 to be used next time is installed on this remote movable cart 52 using a lifting hook 56 by a crane or the like. It's becoming like that.

At a position below the front end stop device 15, motors 61 are provided on the left and right sides of the main body frame 1 in FIG.
2 is connected to a clutch 65 provided in the center via a coupling 63 and a connecting shaft 64, so that when the clutch 65 is released, each motor 61 can rotate independently, and the clutch 6
When the parts 5 are connected, they are rotated together. Further, each of the connecting shafts 64 is rotatably supported by the main body frame 1 by a bearing 66, and
A sprocket 67 is fixed to each connecting shaft 64, respectively. The other end of the chain 41 is engaged with these sprockets 67, and the other end of the chain 41 is housed in a chain receiver 68 (see FIG. 2) provided in the main body frame 1. has been done.

Note that the chain 41, shafts 42A, 42B,
Hook bracket 43, roller 44, spindle 45,
The hook 46, the tension coil spring 47, the motor 61, the coupling 63, the connecting shaft 64, the clutch 65 and the sprocket 67 constitute a blank material moving means 69. Further, the motor 61, the coupling 63, the connecting shaft 64, and the sprocket 67 constitute driving means for the chain 41 as a push/pull connecting means.

Next, the operation of this embodiment will be explained.

A plurality of blank materials 12 punched by a blanking press (not shown) are stacked at a predetermined height on a movable roller chute 58 of a magazine 55 disposed near the blanking press. In this case, the stacks of blank materials 12 need only be spaced apart enough so that the hooks 46, which are attached to the chain 41 so as to be able to rise and fall, can stand between the stacks, and in particular, they need to be installed in a precise arrangement. There isn't.

In this way, a plurality of stacks of blank materials 12
The magazine 55 loaded with the magazine 55 is lifted by a crane or the like using the lifting hook 56.
It is placed on a moving cart 52. This magazine 55
The movable trolley 52 on which is placed is moved to a position facing the main body frame 1 and stopped, and in this state, the cylinder 36 is activated, and each movable roller chute 58 in the magazine 55 is lifted by the lifting table 38. The height position of each movable roller chute 58 is made to match the height position of the fixed roller chute 3 fixed to the main body frame 1, and the height position of the chain guide 40 of the lifting table 38 and the chain guide 4 of the main body frame 1 is made to match. are matched. At this time, the piston rod 11 of the lift cylinder 10 is located at the lowest position, and in this state, the height position of the lifting roller chute 6 of the lift plate 7 also matches the height position of the fixed roller chute 3.

In this state, when the clutch 65 is disengaged and the pair of motors 61 are driven in the chain feeding direction, the hook bracket 4, which was initially located on the chain guide 4 side of the main body frame 1, is moved.
3 will move toward the chain guide 40 side of the lifting table 38. As the hook bracket 43 moves toward the chain guide 40, the hook 46 protrudes from the upper surface of the movable roller chute 58.
It comes into contact with the lower part of the blank material 12 placed above, but when it comes into contact with this blank material 12, the hook 4
6 resists the tension coil spring 47 having a relatively weak spring force, falls down, goes under the blank material 12, passes under this blank material 12, is moved to the rear of the blank material 12, and is moved to the rear of the blank material 12. When passing under the material 12, the movable roller chute 5 is moved again by the action of the tension coil spring 47.
Projected above 8. The ups and downs of the hook 46 are detected by a switch 48, and the hook 46 is moved into one blank material 12 by one ups and downs of the hook 46.
It is detected that the motor 61 has passed below the stack, and this detection signal causes the motor 61 to be stopped. At this time, switch 4 corresponding to each hook 46
The detection signal of 8 is the motor 6 that drives the hook 46.
A signal is transmitted to the first power supply circuit, and the motor 61 that drives the chain 41 is stopped. Therefore, when the blank material 12 has an irregular shape other than a rectangular parallelepiped as shown in FIG. 1, that is, a blank material 12 with one side inclined as shown in FIG. In other words, the timing of stopping the motor 61 is
Each will be different.

In this way, when each hook 46 passes under the blank material 12 and both motors 61 are stopped, the clutch 65 is actuated in the connecting direction based on the stop signals of both motors 61, and then both motors 61 are stopped. The motor 61 is driven in a direction opposite to that described above to pull in the chain 41, that is, to move the chain 41 to the right in FIG. As a result, the connecting shaft 64 integrally connected by the clutch 65
In this case, the rotations of both motors 61 are forcibly synchronized to pull both chains 41 at the same speed via the sprocket 66, and a hook connected to the tip of the chain 41 via the leading member 42 and the hook bracket 44 is connected to the tip of the chain 41. The end face of the blank material 12 is hooked on the arcuate surface 46 and moved to the right in FIG. At this time, the movable roller chute 5
8. Since the fixed roller chute 3 and the lifting roller chute 6 are located at the same height, the blank material 12 moves smoothly as the hook 46 moves, and finally the blank material 12 moves to the backing plate whose position has been adjusted in advance. The blank material 12 is moved until the end surface of the blank material 12 on the side opposite to the hook 46 comes into contact with the hook 46, and by this movement, the blank material 12 is transferred to a predetermined position on the lifting roller chute 6.

When the blank material 12 is transferred onto the lifting roller chute 6 in this manner, both motors 61 are stopped, the lift cylinder 10 is operated, and the piston rod 11 is driven in the advancing direction. As the piston rod 11 advances, the blank 12 is also lifted up via the lift plate 7 and the lifting roller chute 6, so that its upper end is located within the floating device 25. At this time, the volume of the pressure fluid supplied to the lift cylinder 10 is set to a predetermined amount, so that the upper end of the blank material 12 does not protrude from the floating device 25 in accordance with the amount of the blank material 12. has been done. Moreover, when the blank material 12 is raised in this way, the centering device 20
The pressing cylinder 22 is activated, and the pair of pressing plates 2
1 regulates both end surfaces of the blank material 12,
Lifting roller chute 6 of blank material 12
Centering or centering is performed on the top.

The blank material 12 whose center position has been determined in this way and whose upper end is placed in the floating device 25 is separated into pieces one by one by the action of the blank material separating mechanism 28 of the floating device 25. , blank material 1 at this top position
2 is adsorbed by the disk stack cylinder 32 and transferred to the blank material transfer device 30 side. This blank material transfer device 30 presses blank materials 12 one by one at predetermined intervals by the action of movable and fixed suction cups provided on a movable frame 33 and a fixed frame 31 in the same way as a normal blank material transfer device. It will be moved to the machine side and supplied.

Next, when all the blank materials 12 placed on the lifting roller chute 6 are carried out by the blank material transfer device 30, the pair of motors 6
1 is moved in the chain unwinding direction, and by the action of the hook 46, the stack of blank material 12 still remaining on the movable roller chute 58 is pulled onto the lifting roller chute 6 in the same manner as described above, and the action of the lift cylinder 10 is As a result, the blanks 12 are raised into the floating device 25, and the blanks 12 are sequentially carried out one by one. At this time, if continuous operation is to be performed, that is, to supply the blank material 12 on the lifting roller chute 6 to the floating device 25 without interruption, it is necessary to
As disclosed in Japanese Patent No. 41-10273, a holding pawl that can rotate only in the upward direction may be provided at the lower part of the floating device 25.

When all the stacks of blank materials 12 on the movable roller chute 58 have been carried out onto the lifting roller chute 6 in this way, a detection signal from a detection means such as an optical sensor (not shown) or a detection signal sent onto the movable roller chute 58 in advance is transmitted. The cylinder 36 is automatically operated in the direction in which its piston rod 37 is lowered, and the empty movable roller chute 58 is lowered and stored in the magazine 55 according to the program in which the number of loaded cylinders has been input. At this time, a new blank material is placed on a movable dolly 52 different from the movable dolly 52 on which the magazine 55 with the empty movable roller chute 58 lowered and stored is set, that is, on the movable dolly 52 located on the left side in FIG. A magazine 55 carrying blanks 12 in a predetermined stack is set in advance while carrying out the blanks 12 one by one, and a movable cart 52 supporting the magazine 55 containing an empty movable roller chute 58 is mounted on the main body frame. The connecting rod 53 is moved outward from the position facing the connecting rod 53, that is, to the right in FIG.
A moving cart 52 supporting a magazine 55 loaded with new blanks 12 connected to each other is moved to a position opposite to the main body frame 1. Furthermore, if this new blank material 12 has a different shape from the blank material 12, the floating device 2
5 also needs to be changed, the floating device 25 that has been used until now is moved away from above the main body frame 1 along the rail 24, and set in advance along the shape of the new blank material 12. The other floating device 25
is moved onto the main body frame 1, and the next separation operation of the blank material 12 is performed.

Thereafter, the blank material 12 is successively operated in the same manner.
is separated and fed to the press machine.

According to this embodiment as described above, the stack of blank materials 12 piled up to a predetermined height is not lifted up by slinging work as in the conventional method, so that each blank material 12 is not damaged.
Further, the stack of these blank materials 12 is mounted on a movable roller chute 58 that can be attached to and detached from the magazine 55.
Since the products are delivered in multiple stacks on top of each other, compared to the conventional process of supplying one stack at a time, the interval required for one supply can be extended, which simplifies logistics and improves work efficiency. can be improved. Furthermore, the operation of drawing the stack of blank materials 12 from the movable roller chute 58 via the fixed roller chute 3 onto the lifting roller chute 6 uses a hook 46 that can be raised and lowered, and a single raising and lowering of this hook 46 is detected. Since the retracting operation is performed by driving the pair of motors 61, it is sufficient that the stacks of blanks 12 are placed on the movable roller chute 58 at intervals within the range where the hooks 46 can be raised and lowered. Since there is no need to precisely control the loading position, loading control can be facilitated. Furthermore, since the pair of hooks 46 are driven by different motors 61, even if the blank material 12 is not a simple rectangle but has an irregular shape as shown in FIG. Since the motor 61 is stopped by detecting one up and down movement of the
The retraction operation can be performed without any problems. At this time, since the end surface of the hook 46 that comes into contact with the blank material 12 is formed in an arc shape, the hook 46 and the blank material 12 can always properly contact each other, and the retracting operation can be performed smoothly. Furthermore, since the retracting operation of the chain 41 by the pair of motors 61 is forcibly synchronized with the clutch 65 in the connected state, the rotation speed of the motor 61 can be controlled without the need for a special device, and the control circuit can be controlled. It can be done easily. Further, since a plurality of floating devices 25 and two moving carts 52 are each provided, while one floating device 25 or moving cart 52 is being used, the other floating device 25 or moving cart 52 is being used. 52 setup operations can be performed, and work efficiency can also be improved from this point of view.

In the above embodiment, the chain 41 was used as the push/pull connection means, but the present invention is not limited to this, and a wire rope of relatively high rigidity, such as a wire rope wound around a drum in a winch, or a comparative Other means such as a highly rigid timing belt may also be used. Also, hook 46
As a hook undulation detection means for detecting undulations of
A switch 48 consisting of a proximity switch as shown.
However, the present invention is not limited to this, and a reed switch, optical switch, or other switch may be used. Furthermore, the blank material moving means 69 is not limited to the above-mentioned structure, and may have other structures. For example, the hook 46 is not limited to one that rises and falls, but may be one that protrudes up and down, and a means for driving the hook bracket 43 is used. The mechanism is not limited to the chain 41 and motor 61, but may be a cylinder, a rack and pinion, etc., if there is sufficient space. Furthermore, although it is not necessarily necessary to provide a plurality of the floating devices 25 and moving carts 52, if a plurality of floating devices 25 and moving carts 52 are provided and used alternately, the advantages described in the above embodiments can be obtained. Further, the number of the movable roller chute 58, the fixed roller chute 3 on the main body frame 1 side, and the lifting roller chute 6 on the lift plate 7 in the above embodiment is not limited to the number in the above embodiment; This can be set as appropriate depending on the shape of the object. Furthermore, the clutch 65 that connects the pair of motors 61 is not necessarily provided, and the motors 61 may be driven independently, but drive control that rotates both motors 61 synchronously during the retraction operation is possible. The clutch 6 is complicated as in the above embodiment.
It is more advantageous to provide 5. Furthermore, in the embodiment described above, the chain guide 40 is provided on the lifting table 38, but the present invention is not limited thereto, and the chain guide 40 may be provided on each magazine 55. However, since a large number of magazines 55 are generally attached, the number of chain guides 40 also increases according to the number of magazines 55, which has the disadvantage of increasing the manufacturing cost of the entire device. Therefore, when there are a large number of magazines 55, the chain guide 4
0 on the lifting table 38 is cheaper, but on the other hand, it may be provided directly on the magazine 55 and the lifting device consisting of the lifting table 38 or the like may be omitted.

Further, in the above embodiment, the roller chute provided outside the main body frame 1 is connected to the magazine 5.
5 is provided as a movable roller chute 58 that can be attached and detached from the main body frame 1 without using the magazine 55.
A fixed roller chute 3 integrally fixed to the body frame 1 is extended to the outside of the main body frame 1, and a stack-shaped blank material 12 is directly placed and supplied onto the fixed roller chute extended outward using a forklift or the like. It's okay. However, if the movable roller chute 58 is used as in the embodiment described above, there are advantages in that the blank material 12 can be conveyed efficiently and the blank material 12 will not be damaged.

[Effect of idea]

As described above, according to the present invention, there is provided a blank for a stack feeder that can efficiently supply blanks and that can easily move blanks of irregular shapes into the stack feeder. This has the effect of providing a material moving device.

[Brief explanation of drawings]

Figure 1 is a plan view showing one embodiment of the present invention;
The drawings are an enlarged sectional view taken along the line -- in Fig. 1, Fig. 3 is an enlarged perspective view showing part of the chain, chain guide, and hook portion of the above embodiment, and Fig. 4 shows other shapes of the blank material. FIG. 1...Main frame, 2...Roller, 3...Fixed roller chute, 4...Chain guide, 5...
...Roller, 6...Lifting roller shoot,
7... Lift plate, 10... Lift cylinder, 12... Blank material, 25... Floating device, 36... Cylinder, 38... Lifting table, 40... Chain guide, 41...
Chain, 43... Hook bracket, 46...
Hook, 48...Switch, 52...Moving trolley,
55...Magazine, 58...Movable roller chute, 59...Roller, 61...Motor, 65...
Clutch, 69...Means for moving blank materials.

Claims (1)

[Claims for Utility Model Registration] (1) A roller chute is provided both inside and outside the body frame of the desktop feeder, and the blank material placed on the portion of the roller chute located outside the body frame is attached to the body frame. A blank material moving device for a stack feeder that moves a blank material to a portion located inside the stack feeder, the blank material moving device includes at least two hook brackets each of which is movable along the extension direction of a roller chute; The hooks are supported by the hook brackets so as to protrude or retract from the upper surface of the roller chute, and are normally biased in the upright direction protruding from the upper surface of the roller chute, and the hook brackets are moved forward and backward along the extension direction of the roller chute. a push/pull connection means for moving the push/pull connection means; a drive means for driving the push/pull connection means separately; and a drive means for detecting the protrusion or depression of the hook with respect to the hook bracket, and for causing the hook to move a pile of blank materials by one protrusion or depression of the hook. What is claimed is: 1. A blank material moving device for a stack feeder, comprising a hook protrusion/contraction detection means for detecting passage of a hook. (2) Utility model registration Claim 1, characterized in that each of the driving means is constituted by a motor, and the output shafts of these motors are connected to be rotatable together via a clutch. Blank material moving device for day stack feeder.