JPH089429B2 - Paper feeder - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper feeder capable of continuously feeding a thick paperboard such as a corrugated board at a high speed to the next step, and particularly to a stacked paperboard. After reversing so that the upper surface faces the carrying direction, tilt it down in a shogi-like shape with the front leaning,
The present invention relates to a sheet feeding machine that can be transported uphill at a high speed and continuously fed to a sheet feeding hopper one by one.

2. Description of the Related Art Conventionally, this type of paper feeder has a reversing device in which a pile of paperboard is placed and turned upside down so that the upper surface of the paperboard stands upright in the carrying direction, and the paperboard stands upright in the carrying direction. A feeding device that sequentially tilts the paperboard in the posture into a shogi-like shape of the front lean, and a paperboard that has fallen in the shogi-like shape of the front lean, and transports it.
And a carrying device for continuously feeding the paperboard one by one to the paper feeding hopper. In this case, due to the height relationship between the transport surface that transports the stacked paperboards to the paper feeder and the paper feeding hopper, it is necessary for the transport device to have an upward slope. There is provided a conveyor portion that travels in the horizontal direction, a conveyor portion that travels substantially horizontally, and a curved conveyor portion along the peripheral surface of the guide roller that connects both conveyor portions.

However, in this type of paper feeder, when the speed of the conveying device is set to about 200 sheets per minute or more, the shogi board-like paperboard of the front lean passes through the curved conveyor part along the peripheral surface of the guide roller. , The shogi-like state collapses, the trailing edge of the preceding paperboard, which should be under the leading edge of the succeeding paperboard, jumps above the leading edge of the following paperboard, and the leading edge of the following paperboard moves to the trailing edge of the preceding paperboard. Since it often happens that it bites below, there is a drawback that the paperboard cannot be transferred from the conveyor part traveling uphill to the conveyor part traveling almost horizontally, and the operation must be interrupted. Therefore, it was difficult to operate at a speed of about 200 sheets per minute or more.

In order to solve this drawback, if the uphill of the conveyor portion traveling uphill is made smaller, the length of the conveyor becomes longer, and accordingly, the total length of the paper feeder becomes longer.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention An object of the present invention is to improve a conventional paper feeding machine, to maintain a shogi-like state of a backrest of a paperboard, while ensuring an upslope, at a high speed (about It is an object of the present invention to provide a paper feeding machine capable of transporting (300 sheets) and continuously feeding one by one to a paper feeding hopper.

MEANS FOR SOLVING THE PROBLEMS In accordance with the above object, the present invention provides a reversing device for placing and reversing stacked paperboards so that the upper surface of the paperboards stands upright in the carrying direction, and a reversing device facing the carrying direction. In a paper feeder consisting of a feeding device that feeds a standing cardboard board in a shogi-like shape of the front lean, and a transporting device that conveys the shogi board-like board of the front lean in an upward slope and supplies it to the paper feed popper. The conveyor is provided with an upward slope from the supply end toward the discharge end, and the conveyor gradually decreases in slope as it approaches the discharge end, the conveyor comprising:
When the board is transported at a high speed, it is formed so as to maintain a shogi-like state of the front rest.

Hereinafter, the present invention will be described in detail with reference to the drawings based on embodiments.

Embodiment The paper feeder shown in the drawings includes a machine stand 1, a reversing device 2, a feeding device 3, and a carrying device 4.

The machine base 1 includes a support shaft 12 and a support shaft 13 between both side frames 11, and a wheel 14 at a lower portion.

The reversing device 2 is a pressure cylinder device having a reversing arm 23 and a rod 24 in which a table 21 and a conveying surface 22 form an obtuse angle.
25, and two supports 27 each having a pressure cylinder device 26. The reversing arm 23 is rotatably attached to the machine base 1 by the support shaft 12, and a large number of casters 211 are provided on the surface of the table 21. The transfer surface 22 of the reversing arm 23 has a supply end 221 and a discharge end 222, and the feeding device 3 is provided therein. Pressure cylinder device
A base portion 251 of the rod 25 is rotatably connected to the machine base 1, and a tip portion 241 of the rod 24 is rotatably connected to the reversing arm 23. The two supports 27 are connection shafts 271 that connect them.
However, it is rotatably attached in the vicinity of the supply end 221 of the transport surface 22, so that it can stand upright on the table 21 and be immersed in the vertical direction of the transport surface 22. The pressure cylinder device 26
The fulcrum 261 is rotatably connected to the reversing arm 23, and the rod tip 262 is rotatably connected to each support 27.

The feeding device 3 includes a feeding conveyor 31 provided on the reversing arm 23, a driving device 32, a tilting member 33 and an ear chamber 34, and a bottom conveyor 35 and a driving device 36 directly mounted on the machine base 1. A receiving member 37 and a pressure cylinder device 38 are provided. The feeding conveyor 31 includes a common drive shaft 311 provided at the supply end 221 of the transfer surface 22 and a discharge end of the transfer surface 22.
3 which is wound between the individual driven shaft 312 provided on 222
Equipped with a book conveyor 313 and a chain wheel 31 of a drive shaft 311
A chain 322 is wound between 4 and the chain wheel 321 of the drive device 32. Each of the three tilting members 33 has its own base 331 connected to its own conveyor 313, and is fixed to a freely rotatable connecting shaft 332 passing through the base 331. The base 331 has rollers 333 for traveling along the transport surface 22. The air yanba 34 is a fall member 33.
It is provided between the base and the base 331.

The bottom conveyor 35 includes a supply end 351 and a support shaft provided between the three driven shafts 312 of the feeding conveyor 31 which are cut into pieces.
A discharge end 352 is provided on the top of 13, and a chain 361 is wound between a chain wheel (not shown) provided at the discharge end 352 and the drive device 36.

The receiving member 37 is supported rotatably around the support shaft 13. The pressure cylinder device 38 has its fulcrum 381 rotatably connected to the machine base 1 and its rod tip 382 rotatably connected to the receiving member 37.

The carrying device 4 includes a lifting frame 41 and a pressure cylinder device 42.
And a first conveyor 44 having a curved plate 43, a second conveyor 46 having a guide plate 45, and a drive device 47. The elevating frame 41 moves the first conveyor 44 uphill and the second conveyor
46 are supported substantially horizontally, respectively, and are rotatably mounted around the support shaft 13. The pressure cylinder device 42 has its base 421 rotatably connected to the machine base 1 and has a rod tip 422.
Is rotatably connected to the elevating frame 41.

The first conveyor 44 has a supply end 44 provided around the support shaft 13.
Conveyor belt 44 wound between 1 and discharge end 442
3, a chain 361 is wound between a chain wheel (not shown) provided at the supply end 441 and the drive device 36, and the bottom conveyor 3
At the same time, it can operate at a speed faster than the bottom conveyor 35. The curved plate 43 has a gently curved surface and is attached to the elevating frame 41 to guide the back surface of the conveyor belt 443 along the gently curved line. By this, the first conveyor
44 is formed in an upward slope from the supply end 441 to the discharge end 442, and the upward slope is gradually reduced as the discharge end 442 is approached.

The second conveyor 46 includes a supply end pulley 461 and a discharge end pulley 4
A conveyor belt 463 wound between 62 and
A chain 471 is wound between the supply end pulley 461 and the drive device 47 so that the chain can be operated at a higher speed than the first conveyor 44.

In addition to the above, the sheet feeder of the embodiment includes a control device 5 for automatic operation.

In order to detect that the paperboard 6 has been placed on the table 21, the control device 5 changes the return speed of the limit switch device 51 and the tilting member 33, which are attached near the transport surface 22 of the table 21, from high speed to low speed. In order to change, in order to detect that the photoelectric tube device 52 and the paperboard 6 mounted near the supply end 221 of the transport surface 22 have reached the discharge end 222 of the transport surface 22, the discharge surface 222 is near the discharge end 222 of the transport surface 22. Photocell device 53 attached to
In order to detect that the paperboard 6 has arrived at the discharge end 352 of the bottom conveyor 35, the photoelectric tube device 54 attached to the discharge end 352 of the bottom conveyor 35 and the paperboard 6 have passed over the receiving member 37 after being rotated. In order to detect the above, it is detected that the photoelectric tube device 55 installed in the middle of the first conveyor 44 and the board 6 arrive at the second conveyor 46, and the operating speed of the paper feeder is set to the high speed at the start of operation. To a low speed during normal operation, the photoelectric tube device 56 is mounted near the discharge end 462 of the second conveyor 46.

Action The operation of the paper feeder is carried out as follows.

First, as shown by the solid line in FIG. 1, the reversing arm 23 is set in a posture in which the table 21 is in a horizontal position, and further, the support 27 is in a posture in which the table 27 is in a vertical position.
Put yourself in a sunk position. Next, the loading of the paperboard 6 is started, and the stacked paperboard 6 is loaded onto the table 21 by a feed conveyor (not shown) or the like. FIG. 3 (1) shows this state.

When the front edge 62 of the paper board 6 activates the limit switch device 51, the pressure cylinder device 25 operates, the rod 24 is extended, and the reversing arm 23 starts to rotate. Due to the rotation of the reversing arm 23, the stacked paperboards 6 gradually contact the front edges 62 with the two supports 27 while the upper surface 61 is directed in the carrying direction, and are changed to the back leaning posture. FIG. 3 (2) shows this state.

During reversal of the reversing arm 23, the pressure cylinder device 26 is actuated to retract the rod tip 262. By this,
The two supports 27 connected by the connecting shaft 271 sink together in the transport surface 22. Thus, the paperboard 6 changes to a standing posture on the reversing arm 23 with the front edge 62 in contact with the transport surface 22 and also in the state of a backrest. Support 27 is the transport surface
After being sunk in 22, the drive device 32 is started at the high speed at the start of operation, and the feeding conveyor 31 starts traveling. As the feeding conveyor 31 travels, the tilting member 33 advances,
The paperboard 6 is moved forward, and the leading one of the paperboard 6 is the photoelectric tube device 53.
Is operated, the drive device 32 is stopped, and the feeding conveyor 31 and the tilting member 33 stop moving. FIG. 3 (3) shows this state.

When the reversing is completed and the reversing arm 23 is in a posture in which the conveying surface 22 is horizontal as shown by the chain line in FIG. 1,
The driving device 32 and the driving device 36 are operated at a high speed, and the feeding conveyor 31, the tilting member 33, and the bottom coin 35 start running. Since the bottom conveyor 35 travels at a higher traveling speed than the feeding conveyor 31 and the tilting member 33, the paperboard 6 is
When placed on the bottom conveyor 35, the payout conveyor 31
The front edge 62 is wider than when it is placed above.

The end of the paperboard 6 is the discharge end 352 of the bottom conveyor 35.
Upon arrival at the photocell device 54 is activated. As a result, the operation of the driving device 32 and the driving device 36 is stopped, and the feeding conveyor 31, the tilting member 33, the bottom conveyor 35, and the first conveyor 44 stop moving. FIG. 3 (4) shows this state.

When the feeding conveyor 31, the tilting member 33, the bottom conveyor 35, and the first conveyor 44 stop moving, compressed air is injected into the air chamber 34. Thereby, the tilting member 33 is
It is rotated around the connecting shaft 332, and is changed from a back leaning posture to a front leaning posture. Thus, the feeding conveyor 31
Also, the paperboard 6 in the posture of standing on the bottom conveyor 35 in the carrying direction and leaning back is tilted toward the receiving member 37 held in the upright posture, and is changed to the posture of leaning forward. FIG. 3 (5) shows this state.

Subsequently, the pressure cylinder device 38 is actuated, whereby the receiving member 37 is lowered while supporting the paperboard 6 in the front-back posture, to a posture in which it is shaded in the carrying surface of the first conveyor 44. The paperboard 6 assumes a shogi-like posture of leaning forward.

When the lowering of the receiving member 37 is completed, the driving device 32, the driving device 36, and the driving device 47 are operated, and the feeding conveyor 31, the tilting member 33, the bottom conveyor 35, the first conveyor 44, and the second conveyor 46 are respectively raised. Start progressing at speed. As a result, the shogi-like board 6 having the leading end on the first conveyor 44 advances uphill on the first conveyor 44.

At this time, in the first conveyor 44, since the conveyor belt 443 advances along the curved plate 43, the conveying surface of the first conveyor 44 is formed in an upward slope from the supply end 441 to the discharge end 442, and the discharge end is formed. As you approach 442, the upslope gradually decreases. Therefore, the shogi board-like paperboard 6 of the front lean conveyed by the first conveyor 44 reaches the discharge end 442 while gradually changing its direction in the horizontal direction while maintaining the state of the shogi hopping style of the front lean. After that, the second conveyor 4
You can move on to 6.

At this time, the speed of the first conveyor 44 is faster than the speed of the bottom conveyor 35, and the speed of the second conveyor 46 is the first speed.
Since the speed of the conveyor 44 is faster than the speed of the conveyor 44, the distance between the leading edges 62 of each board of the shogi board 6 is such that each board of the board 6 moves from the bottom conveyor 35 to the first conveyor 44 and from the first conveyor 44. When it is transferred to the second conveyor 46, it is gradually expanded.

When the head of the paper board 6 passes through the phototube device 56, the operation of the phototube device 56 causes the drive device 32, the drive device 36, and the drive device 47 to operate at a high speed at the start of operation up to that time. To a low speed during normal operation. As a result, thereafter, the feeding conveyor 31 and the tilting member 3
3, the bottom conveyor 35, the first conveyor 44, and the second conveyor 46 are operated at low speed during their normal operation.
Thus, the paperboards 6 are loaded into the paper feed hopper 7 one by one from the discharge end 462 of the second conveyor 46. FIG. 3 (6) shows this state.

When the last of the paperboards 6 passes through the phototube device 54, the actuation of the phototube device 54 causes the drive 32 to be stopped,
The feeding conveyor 31 and the tilting member 33 stop moving. The drive device 32 is restarted immediately after it is stopped so as to be reversely rotated at the high speed at the start of operation, whereby the feeding conveyor 31 and the tilting member 33 are disposed at the supply end 221 of the transport surface 22. Aim to start retreating at high speed. In addition, the pressure cylinder device 25 is activated by the operation of the photoelectric tube device 54, and the rod 24
Starts to retract, whereby the reversing arm 23 starts rotating to return to the initial posture. FIG. 3 (7) shows this state.

When the feed-down conveyor 33 and the tilting member 33 are retracted toward the supply end 221, when the tilting member 33 passes through the phototube device 52, the drive device 32 is switched to a low-speed operation by the operation of the phototube device 52. Then, the tilting member 33 is connected to the supply end 22.
When it reaches 1, the driving device 32 is stopped, and the feeding conveyor 31 and the tilting member 33 are stopped. Further, when the tilting member 33 reaches the supply end 221, the compressed air that has been injected into the air chamber 34 is released, and the tilting member 33 is returned to the posture of being sunk in the table 21 due to its own weight.

When the rotation of the reversing arm 23 is completed and the table 21 returns to the horizontal posture, the pressure cylinder device 26 is activated and the rod tip 262 is extended, whereby the support 27 is returned to the upright posture. Be done.

When the last piece of paperboard 6 on the first conveyor 44 passes through the photocell device 55, the actuation of the photocell device 55 causes
The pressure cylinder device 38 is actuated to extend the rod tip 382, which causes the receiving member 37 to return to its upright position. FIG. 3 (8) shows this state. Thus, all preparations for the next operation are completed.

EFFECTS OF THE INVENTION As described above, the paper feeding device of the present invention is formed as an upward slope from the supply end toward the discharge end as its carrying device, and the upward slope is gradually reduced as it approaches the discharge end. Since it is equipped with a conveyor, even if you carry the shogi-like board of the backrest at a high speed of about 300 sheets per minute, you can maintain the shogi-like state, one by one continuously, It can be fed to the paper feeding hopper.

A conventional feeder of a paper feeder has a conveyor section that travels uphill, a conveyor section that runs substantially horizontally, and a conveyor section that curves sharply along the peripheral surface of a guide roller that connects both conveyor sections. About every minute because it was provided
At a speed of 200 sheets or more, the shogi-like board of the front lean is passed through the curved conveyor part along the circumference of the guide roller, and is transferred from the upwardly traveling conveyor part to the horizontally traveling conveyor part. However, it is clear that the present invention greatly improves the productivity of the paper feeder, and further greatly contributes to the ease of work and the reduction of personnel by eliminating the operation interruption. Further, according to the present invention, since the ascending slope can be reliably transported, the length of the transport device can be shortened and the overall length of the paper feeder can be shortened.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the paper feeder of the present invention. FIG. 2 is a plan view when the reversing device is reversed in FIG. 3 (1) to (8) are schematic diagrams for explaining the operation of the paper feeder of the present invention. 2 …… Reversing device 3 …… Feeding device 4 …… Conveying device 44 …… First conveyor (conveyor) 441 …… Supply end 442 …… Discharging end 6 …… Paperboard 61 …… Paperboard top 7 …… Paper feeding hopper

Front page continuation (72) Inventor Toshihiro Fukaya 6-29, Senjo, Itami-shi, Hyogo (56) Reference JP-A-55-161736 (JP, A)

Claims (1)

[Claims] 1. A reversing device for placing stacked paperboards and inverting them so that the upper surface of the paperboards stands in the carrying direction, and a boardboard standing in the carrying direction for shogi In a paper feeding machine comprising a feeding device for feeding and a shogi-like paperboard of a front lean and feeding the paperboard to a paper feeding popper, the carrying device is directed from the feeding end to the discharging end. A conveyor that is formed in an upward slope and gradually decreases in slope as it approaches the discharge end, so that the conveyor can maintain a shogi-like state of the front lean when the paperboard is transported at a high speed. A paper feeder characterized in that it is formed into.