JP3928754B2 - Supply device for cutting out a flat rectangular article - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a flat rectangular article cutting supply device for feeding flat rectangular articles such as books upright to a cutting conveyor in a state where they are arranged side by side.
[0002]
[Prior art]
Conventionally, when a large number of books are separated and transported one by one, as shown in FIG. 7, the books W are placed on the supply conveyor C1 side by side in a backward tilted posture in the transport direction, and the supply is performed. The cut-out conveyor C2, which has a conveying speed larger than the conveyor C1 and is inclined forward and downward, cuts out one by one from the first book that has been conveyed to the downstream end of the supply conveyor C1, and sends it out to the horizontal conveyor C3. When the remaining books W on the supply conveyor C1 are reduced, a plurality of books are sequentially added behind the books W.
[0003]
[Problems to be solved by the invention]
However, books placed manually on the supply conveyor will fall backward due to their own weight, and depending on the way the books are placed on the conveyance surface of the supply conveyor, the inclination angle when falling backwards will vary, leading to the downstream conveyor. There was a problem that the transport pitch of the books to be sent out was not constant.
[0004]
In addition, the one behind the row of books that fell backward on the transport surface of the supply conveyor would lie down sideways, so when adding more books from the back, they would lie down. There was also a problem that workability was poor because the preceding books had to be raised by hand and then arranged behind them.
[0005]
Accordingly, the present invention solves the above-described problems of the prior art, and can transport a flat rectangular article such as a book to the cutting conveyor side while maintaining an upright posture inclined backward on the conveying surface of the supply conveyor. Another object of the present invention is to provide a flat rectangular article cutting and supplying apparatus capable of quickly and easily performing additional supply of articles on a supply conveyor.
[0006]
[Means for Solving the Problems]
For the above purpose, the supply device for cutting out a flat rectangular article of the present invention has a horizontal transfer surface, and supplies the flat rectangular article in a standing posture inclined in a plurality of rearward directions in the transfer direction, It is slidable in the transport direction of the supply conveyor and is supported so as to be rotatable between a support position and a retracted position around an axis inclined in a plane perpendicular to the transport direction. A first article support plate that supports the rear surface of the article placed on the conveyance surface in a posture inclined backward in the conveyance direction, and prevents interference with the article on the conveyance surface at the retracted position; and The rear side of the first article support plate is slidable in the conveyance direction, and when it comes closest to the first article support plate, it protrudes forward of the first article support plate at the support position, and the conveyance surface of the conveyance conveyor Of the items listed above A second article support plate having a part of an article support surface that supports the surface in a posture inclined backward in the transport direction, and the first article support plate is advanced at the same speed as the supply conveyor, A first servomotor that can manually move the article support plate back and forth and that is de-energized when the first article support plate rotates to the retracted position; and a second article The support plate is advanced at the same speed as the supply conveyor, and the second servomotor capable of manually moving the second article support plate back and forth when the power is cut off, and the driving force of the second servomotor advance A one-way clutch that transmits to the second article support plate only in the direction, and allows manual advance movement of the second article support plate at a speed greater than the conveying speed of the supply conveyor when the second servo motor is driven. I have.
[0007]
In addition, a configuration in which a fall prevention roller is added above the downstream end of the supply conveyor so as to be swingably supported in the conveying direction within the vertical plane and to make rolling contact with the upper front of the leading article that has been conveyed in an upright position. It is preferable to do.
[0008]
[Action]
The flat rectangular article cutting supply device of the present invention uses the downstream end of the supply conveyor connected to the upstream end of the extraction conveyor having a higher conveying speed.
When a flat rectangular article such as a book is cut out, the first article support plate is first positioned near the center of the supply conveyor, and a plurality of flat rectangular articles are placed on the front conveying surface. Are arranged in a standing posture in the transport direction.
[0009]
At this time, the rear surface of the article at the end of the row is supported in an upright posture so as to lean against the front surface of the first article support plate, and each of the articles in front of the article is similarly inclined on the conveyance surface in the backward inclination posture. Supported.
[0010]
When the supply conveyor advances, the first servo motor advances the first article support plate at the same speed as the supply conveyor, so that each article is conveyed in an upright posture, and the leading one eventually becomes Enter the subsequent cutting conveyor from the downstream end of the supply conveyor.
Since the subsequent cutting conveyor is faster than the supply conveyor, the articles placed on the cutting conveyor are pulled away from the subsequent articles.
[0011]
Thus, the articles on the supply conveyor are sequentially cut out to the cutting conveyor, and when the first article support plate approaches the downstream end of the supply conveyor, a new article is placed between the first article support plate and the second article support plate. Stand up and add side by side.
[0012]
Next, when the second article support plate is pushed forward by hand, the second article support plate is easily connected to the second servo motor via the one-way clutch. It advances and the front surface of the first article in the added row is brought into contact with the rear face of the first article support plate.
[0013]
If the hand is released from the second article support plate, the one-way clutch transmits the driving force of the second servo motor to the second article support plate, and the second article support plate is synchronized with the supply conveyor. And move forward.
[0014]
Next, when the first article support plate is extracted from between the front article row and the rear added article row and rotated to the retracted position, the power supply to the first servo motor is cut off. The
[0015]
As a result, since the first article support plate can freely slide, the first article support plate is retracted to the front surface of the second article support plate and then rotated to the support position. Move to the back of the article being supported.
Then, the first servomotor is energized again, and the first article support plate moves forward in synchronization with the supply conveyor.
[0016]
When the number of articles in front of the first article support plate decreases, the power supply to the second servo motor is cut off and the second article support plate is retracted to the upstream end side of the supply conveyor. A new article is added upright side by side in the space between the article support plates.
[0017]
By repeating the above procedure, articles are sequentially cut from the supply conveyor to the flow-side cutting conveyor at regular intervals.
In addition, when the fall prevention roller is added above the downstream end of the supply conveyor, the upper front surface of the leading article is pressed by the fall prevention roller when the article is cut out from the supply conveyor to the downstream cutting conveyor. Therefore, the collapse of the subsequent article accompanying the tilt of the leading article is prevented.
[0018]
【Example】
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a supply device for cutting out a flat rectangular article according to the present invention (hereinafter, simply referred to as a supply apparatus). Here, the case where the supply apparatus 1 handles a book as a flat rectangular article will be described. .
[0019]
The supply device 1 has a supply conveyor 4 having a horizontal conveyance surface at the lower part of the main body frame 3, and the downstream end of the supply conveyor 4 is a cut-out conveyor 2 having a conveyance surface inclined downward on the downstream side. It is connected in series with the upstream end.
[0020]
The supply conveyor 4 is driven and driven by a servo motor (not shown), and the conveyance speed is set to be lower than the conveyance speed of the cutting conveyor 2.
[0021]
An article support plate driving unit 5 is provided on the upper part of the main body frame 3. The article support plate driving section 5 has two horizontal linear guides 6 and 7, and the linear guides 6 and 7 are respectively provided with a slider 9 to which a first article support plate 8 is attached. A slider 11 to which the second article support plate 10 is attached is slidably supported.
[0022]
The slider 9 to which the first article support plate 8 is attached faces both ends of the slider 9 in parallel with the linear guide 6 of the toothed belt 14 spanned between the toothed pulley 12 and the guide pulley 13. It is fixed to the part.
[0023]
Similarly, the slider 11 to which the second article support plate 10 is attached faces both ends of the slider 11 in parallel with the linear guide 7 of the toothed belt 17 spanned between the toothed pulley 15 and the guide pulley 16. It is fixed to the part.
[0024]
The toothed pulley 12 rotates integrally with a toothed pulley 20 driven from a toothed motor pulley 18A of the first servomotor 18 provided in the article support plate driving unit 5 via a toothed belt 19. The driving force of the first servomotor 18 is transmitted to the slider 9 via the toothed motor pulley 18A, the toothed belt 19, the toothed pulley 20, the toothed pulley 12, and the toothed belt 14. A first article support plate 8 attached to the slider 9 is configured to move on the conveying surface at the same speed as the supply conveyor 4.
[0025]
Similarly, in the second article support plate 10, the driving force of the second servo motor 21 provided in the article support plate driving unit 5 is such that the toothed drive pulley 21 </ b> A, the toothed belt 22, and the toothed pulley 23. Further, it is configured to move on the conveying surface at the same speed as the supply conveyor 4 through the toothed pulley 15, the toothed belt 17, and the slider 11.
[0026]
As shown in FIG. 2 to FIG. 4, the first article support plate 8 is tilted on the bracket 24 provided on the slider 9 in an oblique direction in a plane perpendicular to the conveyance direction of the supply conveyor 4. The pivot pin 25 is attached so as to be rotatable between a support position indicated by a solid line and a retracted position indicated by an imaginary line in FIG.
[0027]
The rotation operation of the first article support plate 8 is performed manually by holding the handle 26. When the first article support plate 8 is rotated to the support position, the first article support plate 8 is moved in the conveying direction of the supply conveyor 4 as shown in FIG. The book W placed on the transport surface can be supported in an upright posture inclined backward.
[0028]
3 and 4, a pair of guide walls G for restricting the movement of the book W in the lateral direction are supported on the main body frame 3 side on both sides of the transport surface of the transport conveyor 4. It is installed.
[0029]
When the first article support plate 8 is rotated to the retracted position, interference with the book W placed on the transport surface of the supply conveyor 4 is avoided and the first servo motor 18 is energized. In this position, the first article support plate 8 is pushed by hand and can freely slide back and forth.
Further, an arc-shaped comb tooth portion 8 </ b> A centering on the rotation pin 25 is formed on the lower end side of the first article support plate 8 facing the supply conveyor 4 at the support position.
[0030]
On the other hand, the second article support plate 10 moves behind the first article support plate 8, and the lower end side of the second article support plate 10 is bent forward and rises upward. An arcuate comb tooth portion 10A through which the comb tooth portion 8A of one article support plate 8 can pass is formed.
[0031]
The front surface of the comb tooth portion 10A protrudes forward from the front surface of the first article support plate 8 when the second article support plate 10 comes closest to the first article support plate 8 at the support position from the rear. Thus, an article support surface S that supports the rear surface of the book W is formed.
[0032]
As shown in FIGS. 2 and 3, a handle 27 is provided on the rear surface of the second article support plate 10. The handle 27 is indicated by a phantom line by rotating in the axial direction of the handle shaft 28 after rotating the handle shaft 28 about the handle shaft 28 obliquely downward and rearward from a position a facing downward, indicated by a solid line in these drawings. When moved to the position b, the energization of the second servo motor 21 is cut off.
[0033]
FIG. 5 is a cross-sectional view seen in the direction of the arrow at the position AA in FIG. 1. As shown in FIG. 5, a one-way clutch 29 is incorporated in the toothed pulley 23.
[0034]
In this embodiment, a cam clutch is used as the one-way clutch 29, and an inner ring 29A of the relay shaft 31 is rotatably supported by a bearing 30 in the article support plate drive section 5. It is fixed to.
[0035]
The already-described toothed pulley 15 is fixed to the other end of the relay shaft 31, and the driving force of the second servo motor 21 shown in FIG. It is transmitted to the second article support plate 10.
[0036]
Therefore, when the second article support plate 10 is driven forward by the second servomotor 21 in synchronization with the supply conveyor 4, the second article support plate 10 is moved forward at a speed higher than that of the supply conveyor 4. When the hand is pushed, the one-way clutch 29 is idled and the second article support plate 10 can be advanced.
[0037]
On the other hand, the toothed pulley 20 driven from the first servomotor 18 via the toothed belt 19 is fixed to one end of the relay shaft 33 rotatably supported by the bearing 32, and its rotation. Is directly transmitted to the toothed pulley 12 fixed to the other end of the relay shaft 33.
[0038]
Further, as shown in FIG. 1, the first servo motor 18 and the second servo motor 20 support the article by moving the front end portions of the slider 9 and the slider 11 to the front end portions of the linear guides 6 and 7, respectively. When detected by the non-contact type movement limit detection sensors 34, 35 provided in the plate driving unit 5, the energization is cut off, and the forward movement of the first and second article support plates 8, 10 is stopped. It is configured.
[0039]
Next, the operation of the supply apparatus 1 configured as described above will be described with reference to FIG.
As shown in FIG. 4A, a plurality of books W to be cut out to the cutting conveyor 2 are placed on the transporting surface of the supply conveyor 4 in front of the first article support plate 8, and the rear end of the rear end of the row of these books W The supply conveyor 4 is driven in a state of being brought into contact with the front surface of the one article support plate 8 and standing in a tilted posture.
[0040]
At this time, the second article support plate 10 is in a position separated rearward from the first article support plate 8, and both the article support plates 8 and 10 are synchronized with the supply conveyor 4 at the same speed. The book W on the transport surface moves forward and is fed forward while maintaining the standing posture inclined backward.
[0041]
Further, simultaneously with the start of driving of the supply conveyor 4, the driving of the downstream cutting conveyor 2 is started. And the book W ahead of the 1st article support board 8 is eventually sent out to the cutting conveyor 2 in order from the head thing like FIG.
[0042]
The cutout conveyor 2 is driven in the same direction at a higher speed than the supply conveyor 4, and when the book W is transferred from the supply conveyor 4 to the cutout conveyor 2, there is a gap between the book W and the subsequent book W. Separated and transported downstream.
[0043]
Then, before all the books W in front of the first article support plate 8 are sent out from the supply conveyor 4 to the cutout conveyor 2, a plurality of books are provided between the second article support plate 10 and the first article support plate 8. W is added, and the rear surface of the rear end of the row of these books W is brought into contact with the article support surface S formed on the front surface of the comb tooth portion 10A of the second article support plate 10, and the supply conveyor is in a standing posture inclined backward. 4 is placed on the transport surface.
[0044]
Next, as shown in FIG. 3C, the second article support plate 10 is pushed forward by hand, and the book W supported by the article support surface S is slid on the transport surface of the supply conveyor 4 to the front. The front surface of the top of these books W is brought into contact with the rear surface of the first article support plate 8.
At this time, the second article support plate 10 can be easily advanced along the linear guide 7 by the idling of the one-way clutch 29 shown in FIG.
[0045]
Thus, after the first article support plate 8 is sandwiched between the front and rear books W, the first article support plate 8 is rotated upward to the retracted position as shown in FIG. When the first article support plate 8 is extracted from between the front and back books W, the book W added later is united with the preceding book W.
[0046]
In this embodiment, as shown in FIG. 4, when the first article support plate 8 is rotated to the retracted position, the arc-shaped edge of the comb tooth portion 8 </ b> A is centered on the rotation pin 25. Since the belt moves in the circumferential direction, there is no risk that the belt will be caught on the edge and broken when the belt is wound around the outside of the book.
[0047]
On the other hand, when the first article support plate 8 is rotated to the retracted position, the power supply to the first servo motor 18 shown in FIG. 1 is cut off as described above, and the first article support plate 8 is moved to the linear guide 6. It can move freely back and forth along.
[0048]
Therefore, while the first article support plate 8 is rotated to the retracted position, the first article support plate 8 is moved back to the position closest to the front of the second article support plate 10 as shown in FIG. After returning, it is rotated to the support position. At this time, the front surface of the first article support plate 8 enters slightly behind the article support surface S of the second article support plate 10.
[0049]
Further, the first article support plate 8 is driven to advance integrally with the second article support plate 10 again in synchronization with the supply conveyor 4 by the rotation to the support position.
Thereafter, the handle 27 shown in FIGS. 2 and 3 is operated to cut off the power supply to the second servo motor 21, and the second article support plate 10 is manually moved as shown in FIG. The second servomotor 21 is energized again by operating the handle 27 to start the forward movement of the second article support plate 10.
[0050]
By repeating the operations shown in FIGS. 5A to 5F, the books W supplied to the supply conveyor 4 can be cut out one by one continuously to the cutout conveyor 2. .
[0051]
Although not shown in the figure, a fall prevention roller is supported by hanging down in the vertical direction above the downstream end of the supply conveyor 4 so as to be swingable in the transport direction, and the top of the front book W that has been transported in an upright position is placed on the top of the front. When the book W is cut out from the supply conveyor 4 to the downstream cut-out conveyor 2 by contacting the fall prevention roller, the upper front surface of the top book W is pressed by the fall prevention roller, and the subsequent following the tilt of the top book W Of the book W can be prevented.
[0052]
Further, in the above-described embodiment, an example of a book is shown as a flat rectangular article, but the flat rectangular article cutting supply device of the present invention is not limited to a book, but a rectangular plate or flat article. An article having a flat rectangular shape such as a simple box can be similarly applied.
[0053]
【The invention's effect】
As described above, a flat rectangular article such as a book supplied on the supply conveyor in a batch is overturned by the first article support plate and the second article support plate that advance at the same speed as the supply conveyor. Since the article can be conveyed to the downstream of the supply conveyor in a state where the inclination of the article on the conveyance surface is kept constant while being prevented, and sequentially fed to the extraction conveyor, the extraction interval can be made constant.
[0054]
Further, during the cutting operation, when the article is additionally placed on the supply conveyor from behind the preceding article, the first article support plate prevents the article preceding the conveyance surface from being overturned. Can be performed quickly and easily, and work efficiency can be improved.
[0055]
Further, in the flat rectangular article cutting supply device of the present invention, when a fall prevention roller is added above the downstream end of the supply conveyor, the subsequent article collapses due to the tilt when the leading article is cut out. Can be prevented, and the cutting operation can be made more stable.
[Brief description of the drawings]
FIG. 1 is a side view of a supply device for cutting out a flat rectangular article according to the present invention.
FIG. 2 is a side view of a main part of a supply device for cutting out a flat rectangular article according to the present invention.
FIG. 3 is a diagram showing a main part of the supply device for cutting out a flat rectangular article according to the present invention as viewed from the back in the conveying direction.
FIG. 4 is a diagram showing the positional relationship between a first article support plate and a second article support plate, as viewed from the front in the conveying direction.
5 is a cross-sectional view of the article support plate driving unit viewed in the direction of the arrow at the position AA in FIG. 1. FIG.
FIG. 6 is an operation explanatory diagram of the supply device for cutting out a flat rectangular article according to the present invention.
FIG. 7 is a diagram showing an example of a conventional flat rectangular article cutting device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Flat rectangular article cutting supply apparatus 2 Cutting conveyor 3 Main body frame 4 Supply conveyor 5 Article support plate drive parts 6 and 7 Linear guide 8 1st article support plates 8A and 10A Comb teeth part 9 and 11 Slider 10 2nd Article support plates 12, 15, 20, 23 toothed pulleys 13, 16 guide pulleys 14, 17, 19, 22 toothed belt 18 first servo motor 18A, 21A toothed motor pulley 21 second servo motor 24 bracket 25 Rotating pins 26, 27 Handle 28 Handle shaft 29 One-way clutch 30, 32 Bearing 31, 33 Relay shaft 34, 35 Movement limit detection sensor G Guide wall S Article support surface

Claims (2)

A supply conveyor that has a horizontal conveyance surface and conveys a flat rectangular article in an upright posture inclined backward in the conveyance direction; and
It is slidable in the transport direction of the supply conveyor and is supported so as to be rotatable between a support position and a retracted position about an axis inclined in a plane perpendicular to the transport direction. A first article support plate that supports the rear surface of the article placed on the conveyance surface in a posture inclined backward in the conveyance direction, and avoids interference with the article on the conveyance surface at the retracted position;
The rear side of the first article support plate is slidable in the conveyance direction of the supply conveyor, and when it is closest to the first article support plate, it projects forward of the first article support plate at the support position. A second article support plate having in part an article support surface for supporting the rear surface of the article placed on the conveyor conveyance surface in a posture inclined backward in the conveyance direction;
The first article support plate can be moved forward and backward at the same speed as the supply conveyor, and the first article support plate can be manually moved back and forth when the power is cut off. A first servo motor that is de-energized when rotated to
A second servo motor capable of moving the second article support plate forward and backward at the same speed as the supply conveyor and manually moving the second article support plate back and forth when the power is cut off;
The driving force of the second servo motor is transmitted to the second article support plate only in the forward direction, and the second article support plate is manually advanced at a speed higher than the conveying speed of the supply conveyor when the second servo motor is driven. A supply device for cutting out a flat rectangular article, comprising a one-way clutch that enables movement. It is characterized in that a fall prevention roller is added above the downstream end of the supply conveyor so as to be swingably supported in the conveying direction within the vertical plane and to make rolling contact with the upper front surface of the leading article conveyed in an upright position. The supply device for cutting out a flat rectangular article according to claim 1.

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