JP2008087941A - Device and method for feeding sheet product - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To smoothly feed sheet products from a stock part to the downstream side by maintaining the orderly stacked state when the stacked body of the sheet products falls from a conveyor to the stock part. <P>SOLUTION: In this sheet product feeding device 1, a receiving claw 11d is installed at the lower end, a support device 10 formed of an arm 11 vertically swingable around the upper end is additionally installed, and the arm 11 is swung toward the discharge end of a roller conveyor 20. The stacked body S fed from the discharge end is supported by the receiving claw 11d from the lower surface, and swung toward the stock part 40 in the supported state to guide the stacked body S to the stock part 4. Since impact is not applied to the stacked body S by the guidance of the support device 10 when the stacked body is stored in the stock part 40, the ordered state can be maintained and the jamming in a line is prevented. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sheet product supply apparatus and sheet product supply method capable of maintaining a state in which a stack of sheet products such as corrugated cardboard sheets is orderly stacked when dropped from a conveyor to a stock section.

  2. Description of the Related Art Conventionally, a feeding device that conveys a stack of corrugated cardboard sheets into a stack of corrugated cardboard sheets formed by orderly stacking a plurality of corrugated cardboard sheets and sends them out from the discharge end of the conveyor has been known. (See Patent Document 1 and FIG. 1).

The stack of cardboard sheets sent out from the discharge end of the conveyor in this way is partitioned by a front guide extending in the vertical direction for guiding the front end of the cardboard sheet and a back guide for guiding the rear end of the cardboard sheet below the discharge end of the conveyor. Will be dropped into the stock department.
Below the stock portion, another conveyor composed of a suction belt is arranged so that a gap corresponding to the thickness of one cardboard sheet is formed between the carrier side belt and the lower end of the front guide. .
Through this gap, a pile of corrugated cardboard sheets stored in the stock section is sent one by one from the bottom adsorbed to the adsorbing belt to the downstream side (see Patent Document 2 and FIG. 2).

  In addition, a kicker that can slide up and down is provided below the stock part, and the kicker kicks out the rearmost end of the stacked cardboard sheet group in the stock part, so that one cardboard sheet is placed in order from the bottom. There is also a mechanism for sending it downstream one by one (see Patent Document 3 and FIG. 1).

  The corrugated cardboard sheet thus sent to the downstream side is processed by a sheet processing apparatus installed there, or the inspection position, inspection position, etc. are inspected (see Patent Document 4 and FIG. 3).

In such a series of operations, when dropping a stacked body of cardboard sheets from the conveyor to the stock section, the stacked body that has been stacked in an orderly manner may be broken due to an impact at the time of dropping or the like.
In this case, the corrugated cardboard sheet is jammed by the front guide of the stock section, and cannot be sent out to a processing device or the like further downstream of the conveyor.
For this reason, it is necessary to manually remove the corrugated cardboard sheet that is once caught by stopping the entire line, and it takes time to return, which is inefficient and troublesome.

Such a problem occurred not only when corrugated cardboard sheets but also when a sheet product stack formed by orderly stacking other sheet products was dropped from the conveyor onto the lower stock section.
Japanese Patent Publication No.58-56694 JP 2006-36509 A Japanese Examined Patent Publication No. 62-15340 JP 2004-338006 A

  In view of this, the present invention maintains a state in which sheet products are stacked in an orderly manner when dropping a stack of sheet products including cardboard sheets into a stock unit from a conveyor, and further downstream from the stock unit. The goal is to enable smooth delivery of sheet products.

  In order to solve the above-described problems, in the present invention, a sheet product supply device is provided with a sheet product support device, and a conveyor claw is provided at a lower end of an arm that swings in the upstream and downstream directions of the support device. The stack of sheet products fed from the discharge end of the sheet is supported from the lower surface, and in the supported state, the arm is swung toward the stock portion, and the stack of sheet products is guided to the stock portion.

As described above, since the stack of sheet products fed from the conveyor is supported and guided to the stock section, the delivery of the stack of sheet products from the conveyor to the stock section causes an impact on the stack. It is done smoothly.
Therefore, the sheets are stored in the stock portion in an orderly stacked state, and the sheet product can be smoothly fed from the stock portion to the downstream side, and clogging in the line can be prevented.

Specifically, a conveyor that conveys a stack of sheet products, a stock unit that is positioned below the discharge end of the conveyor, and that sequentially stores the stack of sheet products fed from the discharge end of the conveyor, and the stock unit A sheet product supply apparatus comprising: a front guide that guides the front end of the sheet product in the vertical direction; and a feed mechanism that sequentially feeds the stacked sheet products stored in the stock portion one by one from the bottom to the downstream side. There is further provided a support device for the product stack, and this support device is composed of an arm formed so as to be swingable in the upstream and downstream directions and a receiving claw provided at the lower end portion of the arm, and this arm is formed on the conveyor. Swing upstream toward the discharge end, and support the stack of sheet products sent from the discharge end of the conveyor from the bottom by the catching claw. , Toward the stock portion in the supporting state swings in the downstream, the stack of sheet products and guided to the stock unit, it is after induction arm had a be retracted in a downstream side of the front guide.
In this way, after guiding the stack of sheet products to the stock section, if the arm is swung toward the downstream side and retracted further downstream than the front guide, the arm moves to the stock section of the stack of sheet products. Does not interfere with storage.

If the arm is formed so that it can be expanded and contracted, and it is extended when the stack of sheet products is delivered, and then contracted after delivery, the seat product is already stacked and stored in the stock part of the sheet product by contracting the arm. Can be prevented from interfering with.
Therefore, the arm in the contracted state is swung forward to the discharge end side of the conveyor. When receiving a stack of sheet products, it is expanded, and after it is delivered to the stock section, it is contracted, so that the sheets in the stock section Even when the stacked height of the product group is relatively high, the arm can be moved back and forth.
Therefore, the arm forward / backward swinging cycle can be accelerated, the sheet product delivery cycle can be accelerated, the speed of the storing operation in the stock section can be improved, and the work efficiency can be improved.

  A flat abutting portion is provided above the arm catching claw in the vertical direction, and when the stack of sheet products is delivered, the front end of each sheet product that constitutes the stack supported from the lower surface by the catching claw hits this abutting part. If formed in this manner, the alignment of the sheet products is adjusted on the arm and then guided to the stock portion, so that the accuracy of the alignment of the stack of sheet products in the stock portion is further improved.

In a state where a tilting part that can be inclined downward toward the downstream side from a state substantially flush with the conveying surface of the conveyor is provided at the discharge end of the conveyor, and the stack of sheet products is on the discharge end. When the tilting portion is inclined, the stack is quickly sent out from the discharge end, so that the transfer to the arm is performed quickly, the speed of supply to the stock portion is increased, and the work efficiency can be further improved. .
In addition, by tilting the tilting portion, receiving by the arms of the stack is assisted from the rear, so that the impact at the time of receiving is mitigated and the sheet product is prevented from being damaged.

  When a tilting part is provided at the discharge end of the conveyor, a first sensor is provided above the tilting part to detect the presence or absence of a stack of sheet products on the tilting part. A second sensor for detecting the stacked height of the stored sheet products is provided, and based on signals output from both sensors, a control unit for controlling the operation of the conveyor and the support device is provided. From the second sensor, A signal indicating that the stack height of the sheet products in the stock section is a certain level or more is input, and a signal indicating that the stack of sheet products traveling on the conveyor is on the tilting section is input from the first sensor. Then, the control unit stops the conveyance of the conveyor, causes the stack of sheet products to wait on the tilting unit, retracts the arm of the support device to the downstream side, and When the signal indicating that the stack height of the sheet products in the stock section is below a certain level is input, the control section tilts the tilt section and sends out the stack, and moves the arm of the support device to the upstream side. The sheet product stack delivered from the conveyor is supported from the lower surface by the receiving claws, swings toward the stock part in the supported state, and the sheet product stack is guided to the stock part. Can be automated.

  When a stack of sheet products is sent out from the discharge end of the conveyor, it is supported from the lower surface by a receiving claw that swings upstream, and in the supported state, the receiving claw is swung toward the stock section to make a sheet product. Adopting a feeding method that guides the stack of sheets to the stock section enables it to be stored in the stock section in an orderly stacked state, enabling sheet products to be smoothly fed from the stock section to the downstream side of the conveyor. Can prevent clogging in the line.

  By newly providing a support device in the sheet product supply device, the sheet product stack is smoothly transferred from the conveyor to the stock unit, and the sheet product is stored in the stock unit in an orderly stacked state. As a result, the line can be smoothly fed from the stock portion to the downstream side, so that clogging of the line is prevented.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the sheet product supply device 1 according to the embodiment includes a support device 10, a roller conveyor 20, a belt conveyor 30 as a feeding mechanism, and a stock unit 40.

As shown in FIGS. 3 to 8, the stack S of cardboard sheets traveling on the roller conveyor 20 is received by the support device 10 when being sent out from the discharge end thereof. The stacked body S is guided to the stock section 40, and the stock section 40 is stored in a state where the corrugated cardboard sheets s are piled up by sequentially stacking the stacked body S of cardboard sheets.
The piled cardboard sheets s stored in the stock unit 40 are sent out one by one by the belt conveyor 30 in order from the bottom.

As shown in FIGS. 1 and 2, the roller conveyor 20 includes a roller conveyor main body 21, a roller conveyor main body 21 formed at the discharge end of the roller conveyor 20, and a separate tilting portion 22, which are formed on the substrate 23. It is supported.
The roller conveyor body 21 and the tilting portion 22 are each composed of a roller frame 21a, 22a, and a large number of drive rollers 21b, 22b supported on both ends of the roller frame 21a, 22a. The upper surface forms the transport surface.
Each of the driving rollers 21b and 22b can be rotationally driven toward the discharge end of the roller conveyor 20 at the conveyance surface, and sends out the stack S of cardboard sheets on the conveyance surface from the discharge end.
The tilting portion 22 formed at the discharge end portion of the roller conveyor 20 is hinged to the substrate 23 at the central portion in the transport direction, and the cylinder 23a attached to the substrate 23 is connected to the upstream end portion. By extending and contracting 23a, it is formed so as to be able to incline from a state that is substantially flush with the conveying surface of the roller conveyor main body 21 around the hinge to a state in which it is inclined downward toward the downstream side.
A first sensor 24 that detects the presence or absence of a stack S of corrugated cardboard sheets on the tilting portion 22 is provided above the tilting portion 22.

As shown in FIGS. 1 and 2, the belt conveyor 30 is installed at a predetermined distance from the roller conveyor 20 at a position downstream and lower than the roller conveyor 20.
The belt conveyor 30 includes a pulley 31, an endless belt 32 passed between the pulleys 31, and a suction mechanism (not shown) arranged below the carrier side belt 32 a of the belt 32. The carrier side belt 32a is formed to be endlessly rotatable with the conveyance surface facing the downstream side.
Since the belt 32 is provided with a large number of small holes that pass therethrough, a suction force is applied by the suction mechanism, and even a part of the corrugated cardboard sheet s is adsorbed when placed on the belt 32 and is downstream of the belt 32. To be sent out.
As described above, the belt conveyor 30 is a feeding mechanism that sucks the corrugated cardboard sheets s stored in the stock unit 40 and feeds the corrugated cardboard sheets s one by one from the bottom to the downstream side.

As shown in FIGS. 1 and 2, the stock unit 40 includes a back guide 41 provided below the tilting unit 22 at the discharge end of the roller conveyor 20 and a back guide on the carry-in end of the carrier side belt 32 a of the belt conveyor 30. A compartment is formed by a front guide 42 provided downstream of 41.
In addition, the space | interval of the back guide 41 and the front guide 42 is formed substantially the same as the dimension of the conveyance direction of the corrugated cardboard sheet s.
The back guide 41 includes a base 41a, a back guide plate 41b bent in the middle attached to the upper part of the downstream side surface of the base 41a, a friction roller 41c attached to the lower part, and the substrate 23 of the roller conveyor 20. And a guide roller 41d fixed to the discharge end face.
The front guide 42 includes a pair of front guide plates 42a extending in a substantially flat manner in the vertical direction and arranged in parallel with a predetermined interval in the width direction of the belt 32, and a mounting portion 42b connected to the upper end of the front guide plate.
Each attachment portion 42 b is attached to a side plate (not shown) provided on both sides of the belt conveyor 30.
The lower end portion of each front guide plate 42a is a protruding portion that protrudes toward the downstream side, and the thickness of one cardboard sheet s is between the lower end portion and the conveying surface of the belt 32 of the belt conveyor 30. As described above, a gap that is less than the thickness of the two sheets is formed, and only one cardboard sheet s can pass therethrough.
In the vicinity of the front guide 42 in the stock unit 40, a second sensor 43 for detecting the height of the piled cardboard sheets s stored in the stock unit is provided. The upper sensor 43a and the lower sensor 43b are arranged in parallel in the vertical direction.

As shown in FIGS. 1 and 2, the support device 10 includes an arm 11 that supports a stack S of corrugated cardboard sheets, and a rotary actuator 12 that swings the arm 11 up and down between the upstream side and the downstream side. Become.
The arm 11 has an attachment portion 11a at the upper end, a cylinder portion 11b composed of an air cylinder connected to the lower portion of the attachment portion 11a, and a pair of elongated plate-like shapes extending downward in parallel in the width direction of the belt 32 from the cylinder portion 11b. The arm main body 11c includes a receiving claw 11d that is connected to both lower ends of a pair of arm main bodies 11c arranged in parallel so as to protrude toward the upstream side and supports the lower portion of the stacked body S.
The upward U-shaped attachment portion 11a is attached from the lower side of the rotary actuator 12 to the rotary shaft on the side surface thereof, so that the arm 11 is connected to the discharge end portion of the upstream roller conveyor 20 and the downstream front guide. 42 can swing up and down.
The cylinder portion 11b can be extended and contracted by air, and the length of the arm 11 can be adjusted as indicated by a solid line and a chain line in FIG.
In addition, the arm body 11c in parallel is slightly recessed below the front surface on the roller conveyor 20 side, and the recessed surface is formed flat in the vertical direction of the arm 11, and when the stacked body S is supported by the arm 11, the stacked body S is The corrugated cardboard sheet s constituting the contact portion 11e is a contact portion.
Further, as shown in FIGS. 1 and 2, the connecting portion of the mounting portion 11 a to the rotary actuator 12, which is the swing center of the arm 11 of the support device 10, is located downstream of the front guide 42 of the stock portion 40. Furthermore, since the pair of arm main bodies 11c are provided between the pair of front guide plates 42a, the arm main body 11c is in a state where the arm 11 is substantially perpendicular to the belt conveyor 30. And the receiving claw 11d will be in the state retracted to the downstream side from the stock part 40.
Accordingly, when the support device 10 is swung upstream from the retracted state toward the roller conveyor 20 side, the support device 10 passes between the front guide plates 42a of the front guide 42 and enters the stock portion 40. It is possible.
When the cylinder 11b is contracted as shown in FIG. 2 in a state where the arm 11 is substantially perpendicular to the belt conveyor 30, the receiving claw 11d serving as the lower end of the arm 11 is moved to the upper sensor 43a of the stock 40. When the cylinder part 11b is extended as shown in FIG. 8, the receiving claw 11d serving as the lower end of the arm 11 is substantially the same height as the lower sensor 43b of the stock part 40. .
Therefore, when the height of the corrugated cardboard sheet s group stored in the stock unit 40 is lower than the upper sensor 43a, the arm 11 can swing in a contracted state, and when lower than the lower sensor 43b, the arm 11 can swing. 11 can swing in the extended state.

Further, signals output from the first and second sensors 24 and 43 are input to a control unit (not shown), and the control unit controls operations of the roller conveyor 20 and the support device 10 based on the input signals. To do.
The first and second sensors 24 and 43 are composed of a pair of light emitters and light receivers installed on both sides of the roller conveyor 20 and the belt conveyor 30. If there is a cardboard sheet s between them, the light is blocked. The presence or absence can be detected by changing the light receiving state.

  The configuration of the sheet product supply apparatus 1 is as described above. Next, the operation thereof will be described.

First, as shown in FIG. 3, the stack S of cardboard sheets traveling on the roller conveyor main body 21 of the roller conveyor 20 is conveyed onto the tilting portion 22 at the discharge end.
At this time, as shown in the figure, the arm 11 of the support device 10 is retracted to the downstream side of the front guide 42 with the cylinder portion 11b contracted upward.

Next, as shown in FIG. 4, when the stack S formed by orderly stacking cardboard sheets is placed on the tilting part 22 of the roller conveyor 20, the first sensor 24 above the tilting part 22 detects the presence of the cardboard sheet s. When the second sensor 43 in the stock unit 40 detects the stacked height of the corrugated sheet s group in the stock unit 40, and the stacked height of the corrugated sheet s group in the stock unit 40 is equal to or higher than the upper sensor 43a. The controller stops driving the drive rollers 21b and 22b based on signals input from the sensors 24 and 43.
Therefore, the stack S of cardboard sheets is in a standby state on the tilting portion 22.

Here, as shown in FIG. 3 and FIG. 4, the lowermost corrugated cardboard sheet s of the corrugated cardboard sheet s group stacked on the stock unit 40 is adsorbed to the carrier side belt 32 a of the belt conveyor 30 and driven by the pulley 31. Through the gap between the front guide 42 and the carrier side belt 32a, the belt is sequentially sent from the carry-in end of the belt conveyor 30 to the downstream next process.
Therefore, when the height of the corrugated cardboard sheet s group in the stock unit 40 is lowered and the height becomes equal to or lower than the height of the upper sensor 43a, a signal indicating that is output, In response, the controller rotates the rotary actuator 12 of the support device 10 by a predetermined angle, and the arm 11 in the contracted upward state swings upstream toward the roller conveyor 20 side.
Therefore, the arm 11 located at the retracted position as shown in FIG. 3 passes between the front guide plates 42a of the front guide 42 and swings and advances toward the discharge end side of the roller conveyor 20 as shown in FIG.

Here, when the tip of the lower end of the arm 11 reaches slightly downstream from the discharge end of the roller conveyor 20, the rotary drive of the rotary actuator 12 is stopped and the swing of the arm 11 is stopped. As shown in FIGS. 4 to 5, the arm 11 extends, and the leading end of the receiving claw 11 d is discharged from the roller conveyor 20 at a position that is the same as or slightly lower than the conveying surface of the roller conveyor 20. It will be in the state which can receive the stack S near the edge.
The extension operation of the arm 11 may be performed while the arm 11 is swinging.
When the forward swinging operation and the extending operation of the arm 11 of the support device 10 are finished, the driving rollers 21b and 22b are driven again, and the conveyance of the stack S is resumed as shown in FIG. The lower surface of the front end of S is supported by the receiving claw 11 d of the arm 11 of the support device 10.

In this state, the cardboard sheets s in the stock unit 40 are sequentially sent to the next downstream process, whereby the height of the group of cardboard sheets s is lowered, and the height is the height of the lower sensor 43b. In the case of the following, a signal indicating that is output, and upon receiving this signal, the control unit rotates the rotary actuator 12 so as to swing the arm 11 downstream, and the roller conveyor 20 The cylinder 23a is driven to extend.
As shown in FIG. 6, as the arm 11 swings to the downstream side, the tilting portion 22 of the roller conveyor 20 extends downward from the state that is flush with the roller conveyor body 21 due to the extension of the cylinder 23a. By inclining so as to be, the stacked body S of cardboard sheets is quickly sent out from the discharge end of the roller conveyor 20.

Further, as shown sequentially in FIGS. 6 and 7, the arm 11 maintains the support state of the stack S with the tilting portion 22 of the roller conveyor 20 assisting the lower surface of the rear end of the stack S from the rear. While swinging from the discharge end of the roller conveyor 20 toward the front guide 42.
At this time, as shown in the drawing, in the stack S of cardboard sheets sent from the discharge end, the front end portion of each cardboard sheet s hits the flat abutting portion 11e of the arm, and the upper cardboard sheet s is more than the lower cardboard sheet s. These are aligned in a slightly preceding state.

When the swinging further proceeds from this state, as shown in FIGS. 7 and 8, the stack S of cardboard sheets supported by the arm 11 is first guided by the guide roller 41 d of the back guide 41 at the rear end thereof. Next, when the arm 11 passes between the front guide plates 42a and retracts to the downstream side of the front guide 42 so that the receiving claws 11d are hidden behind the front guide 42 and do not protrude, the lower surface of the front end of the stack S is received. The front end portion of the stacked body S is guided from the upper side to the lower side by the front guide 42, the rear end portion is supported by the back guide plate 41b of the back guide 41, and the lower surface of the rear end portion is supported by the friction roller 41c. It is supported and stored in the stock section 40, and the stock section 40 is replenished with the cardboard sheets s aligned.
Thus, since the receiving claw 11d of the arm 11 supports only the lower part of the front end portion of the corrugated cardboard sheet s, when the arm 11 is retracted downstream from the front guide 42, the support is released immediately.
When the stack S is stored in the stock section 40, the stack S is quickly stored in a state where there is almost no drop height of the stack S, so that the delivery cycle can be accelerated and efficiency is increased. .
For the detailed operation of the protruding portion at the lower end of the front guide plate 42a of the front guide 42 and the back guide plate 41b and the friction roller 41c of the back guide 41, see Japanese Patent Application Laid-Open No. 2006-36509 described above. .
Further, the arm 11 retracted downstream from the front guide 42 is stopped swinging by the control unit, and the cylinder unit 11b is contracted and contracted to return to the standby state as shown in FIG.

  The above is a series of operations. By repeating this, the stacking body S of cardboard sheets is appropriately replenished to the stock unit 40 from the roller conveyor 20 through the support device 10, and the cardboard sheets s in the stock unit 40 are transferred one by one to the downstream inspection device or the like. It is sent out smoothly.

  In this embodiment, the feeding mechanism that feeds the corrugated cardboard sheet s from the stock unit 40 to the downstream side is provided by providing the belt 32 of the belt conveyor 30 with an adsorption function. However, the invention is not limited thereto. As in Document 3, a kicker that can slide up and down is provided below the stock portion 40. With this, the cardboard sheets s in the stock portion 40 are kicked from the rear end thereof, one by one from the bottom to the downstream side. You may send it out.

Further, in this embodiment, the arm 11 of the support device 10 is configured to be extendable in order to accelerate the delivery cycle of the stacked body S. However, in order to simplify the structure and reduce the manufacturing cost, the configuration does not extend or contract. Can also be adopted.
In that case, if the entire arm 11 is integrally formed by pressing the plate, the manufacturing cost can be reduced.
In the embodiment, the extension / contraction operation is performed after the end of the swinging operation of the arm 11, but may be performed simultaneously.

Further, in this embodiment, in order to increase the efficiency of delivery of the stack S, the sensor 24 is also provided on the tilting part 22, but this is omitted, and only the sensor 43 in the stock part 40 is controlled by the control part. The operation of the roller conveyor 20 and the support device 10 may be controlled by outputting a signal to
That is, when a signal indicating that the stacking height of the corrugated cardboard sheets s in the stock unit 40 is a certain level or more is input, the control unit stops the conveyance of the roller conveyor 20 and moves the arm 11 of the support device 10 downstream. When the signal indicating that the stacking height of the corrugated cardboard sheets s in the stock unit 40 is below a certain level is input from the sensor 43, the control unit starts conveying the roller conveyor 20 and supports it. A configuration in which the arm 11 of the apparatus 10 is advanced to the upstream side and the stack S of cardboard sheets is guided to the stock unit 40 may be adopted.

Further, in this embodiment, the tilting portion 22 is provided at the discharge end of the roller conveyor 20 in order to perform delivery quickly and assist the support by the arm 11 from behind to prevent the cardboard sheet s from being damaged. This may be omitted to simplify the structure and reduce manufacturing costs.
Further, in the case where the tilting portion 22 is provided, the roller constituting the tilting portion 22 may be a non-driven free rotating roller instead of the driving roller 22b in order to reduce energy consumption.

In the embodiment, the back guide 41 includes the bent back guide plate 41b, the friction roller 41c, and the like. However, the back guide 41 is not limited thereto. For example, in order to simplify the structure, in the vertical direction below the discharge end of the roller conveyor 20 You may comprise from the flat plate extended to.
Further, the back guide 41 may be omitted, and the stock portion 40 may be partitioned from the front guide 42 alone.
The conveyed product is not limited to the corrugated cardboard sheet s, and any sheet product such as cardboard or decorative paper may be used.

Perspective view of sheet product supply device Side view of sheet product feeder One side view showing the operating state of the sheet product supply device One side view showing the operating state of the sheet product supply device One side view showing the operating state of the sheet product supply device One side view showing the operating state of the sheet product supply device One side view showing the operating state of the sheet product supply device One side view showing the operating state of the sheet product supply device

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sheet product supply apparatus 10 Support apparatus 11 Arm 11a Attachment part 11b Cylinder part 11c Arm main body 11d Receiving claw 11e Contact part 12 Rotary actuator 20 Roller conveyor 21 Roller conveyor main body 22 Tilt part 21a, 22a Roller frame 21b, 22b Drive roller 23 Substrate 23a Cylinder 24 First sensor 30 Belt conveyor (feed-out mechanism)
31 Pulley 32 Belt 32a Carrier side belt 40 Stock part 41 Back guide 41a Base 41b Back guide plate 41c Friction roller 41d Guide roller 42 Front guide 42a Front guide plate 42b Mounting part 43 Second sensor 43a Upper sensor 43b Lower sensor S Cardboard sheet stack s Cardboard sheet (single unit)

Claims (6)

A conveyor 20 that conveys a stack S of sheet products, a stock unit 40 that is positioned below the discharge end of the conveyor 20 and sequentially stores the stacks S of sheet products fed from the discharge end of the conveyor 20, and the stock A sheet provided with a front guide 42 extending in the vertical direction for guiding the front end of the sheet product s in the section 40 and a delivery mechanism 30 for feeding the stacked sheet products s stored in the stock section 40 one by one from the bottom to the downstream side. In product supply equipment,
A support device 10 for the sheet product stack S is further provided. The support device 10 includes an arm 11 formed so as to be swingable in the vertical direction and a receiving claw 11d provided at the lower end of the arm 11. The arm 11 is swung to the upstream side toward the discharge end of the conveyor 20, and the stack S of sheet products fed from the discharge end of the conveyor 20 is supported from the lower surface by the receiving claws 11d. The sheet product stack S is guided to the stock unit 40, and the post-guide arm 11 is retracted to the downstream side of the front guide 42. Feeding device.   2. The sheet product supply device according to claim 1, wherein the arm 11 is formed to be extendable and extended when the stack S of sheet products is supported, and contracted before and after the support. 3.   A flat abutting portion 11e is provided above the receiving claw 11d of the arm 11 in the vertical direction, and the front ends of the sheet products s constituting the stacked body S supported from the lower surface by the receiving claw 11d abut against the abutting portion 11e. The sheet product supply device according to claim 1 or 2, formed as described above.   4. A tilting portion 22 is provided at the discharge end portion of the conveyor 20, and the conveying surface and the conveying surface of the conveyor 20 are formed so as to be inclined downward from the substantially flush state toward the downstream side. The sheet product supply apparatus according to any one of the above. In the case where the tilting portion 22 is provided at the discharge end portion of the conveyor 20,
A first sensor 24 that detects the presence or absence of a stack S of sheet products on the tilting part 22 is provided above the tilting part 22, and the sheet product s stored in the stock part 40 is provided in the stock part 40. A second sensor 43 for detecting the stacking height of the first and second sensors 43 and a control unit for controlling the operations of the conveyor 20 and the support device 10 based on signals output from the two sensors 24 and 43;
A signal indicating that the stack height of the sheet products s in the stock unit 40 is equal to or greater than a certain level is input from the second sensor 43, and the stack S of sheet products traveling on the conveyor 20 is input from the first sensor 24. However, when a signal indicating that it is on the tilting unit 22 is input, the control unit stops the conveyance of the upstream conveyor 20 and waits the stack S of sheet products on the tilting unit 22, thereby supporting the support device 10. The arm 11 is retracted downstream,
When a signal indicating that the stacking height of the sheet products s in the stock unit 40 is below a certain level is input from the second sensor 43, the control unit sends out the stack S by tilting the tilting unit 22. The arm 11 of the support device 10 is advanced to the upstream side, and the stack S of sheet products fed from the conveyor 20 is supported from the lower surface by the receiving claws 11d, and swings toward the stock portion 40 in the supported state. The sheet product supply device according to claim 4, wherein the stack S of sheet products is guided to the stock unit 40. A conveyor 20 that conveys a stack S of sheet products, a stock unit 40 that is positioned below the discharge end of the conveyor 20 and sequentially stores the stacks S of sheet products fed from the discharge end of the conveyor 20, and the stock A sheet provided with a front guide 42 extending in the vertical direction for guiding the front end of the sheet product s in the section 40 and a delivery mechanism 30 for feeding the stacked sheet products s stored in the stock section 40 one by one from the bottom to the downstream side. A sheet product supply method using a product supply device,
When the sheet product stack S is fed from the discharge end of the conveyor 20, it is supported from the lower surface by a receiving claw 11 d that swings toward the discharge end of the conveyor. The sheet product supply method, wherein the sheet product stack S is guided to the stock unit 40 by swinging toward the stock unit 40.

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