JP2005001774A - Inverting device for conveyed article and inverting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inverting device for a conveyed article and an inverting method capable of certainly changing attitude of the conveyed article to a reversal angle of 90° in a short section on a conveyor only by a mechanical mechanism without using an electric part at all such as a motor and hydraulic equipment such as a cylinder. <P>SOLUTION: The inverting device and the inverting method are constituted by a first turnable lever 5 positioned above the conveyor 1 and having a roller 6 having the neighborhood to a tip end side corner part of a package 2 conveyed on the conveyor 1 contacted; a second lever 8 positioned at an upstream side of the first lever 5 and having a roller 9 for pressing a side rear end of the package 2 by interlocking with such a motion that the first lever 5 is pressed by the package 2 and is retreated and turned and urging and moving it to a reverse direction making the roller 6 of the first lever 5 as a fulcrum; and a first fixing bar 16 positioned on a downstream side of the first lever 5 and having a roller 18 having a tip end side of the package 2 on the midway of reversal contacted, urging and moving it in a reverse direction and inverting the package 2 by 90°. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a reversing apparatus and a reversing method for a package in which a disc, which is a recording information medium such as a DVD, is wrapped. Specifically, the package that has been conveyed on a belt conveyor is rotated at 90 ° or 180 ° in a short section on the conveyor. The present invention relates to a technical field that can be reversed to change the posture.
[0002]
[Prior art]
As shown in FIG. 7A, a method of changing the posture of a conveyed product by reversing the posture (conveyance direction) to, for example, 90 ° while a rectangular conveyed product is being conveyed by a belt conveyor. There is. According to this, the conveyed product P that has been carried on a belt conveyor (not shown) that moves in the direction of the arrow and that has been conveyed, for example, in the vertical direction is placed on the base axis S that is suspended on the belt conveyor. By contacting the vicinity of the corner on one end side, the angle is changed to an oblique posture following the movement of the belt conveyor with the base axis S as a fulcrum, and then the angle is changed to a horizontal posture. Thereafter, the conveyed product P is conveyed away from the base axis S in a state in which the angle is changed by 90 ° to a horizontal posture.
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 2002-12317
JP-A-6-286855 [0005]
[Problems to be solved by the invention]
In the method as described above, it takes a long time until the posture change is completed after the conveyed product comes into contact with the base axis S, and the belt conveyor needs to be about two to three times as long as the conveyed product. The belt conveyor needs extra length.
[0006]
By the way, as shown in FIG. 7A, when the rectangular conveyed product P has been conveyed vertically, the reversal force received by the conveyed product P when the conveyed product P comes into contact with the base axis S is a vector. In the figure, when the conveyance direction is F from the center of gravity O of the conveyed product P, and the line F ₁ connects the center of gravity O of the conveyed product P and the base axis S, the component force acts as a reversal force F ₄ . When conveyed P as shown in FIG. 7B contrary is conveyed sideways, expressed in the same conditions in the case of FIG. 7B inverting force F ₅ becomes small, the conveying matter P reversed from the case of FIG. 7A It turns out that it becomes difficult to do. In other words, is that hardly inverted smaller the angle θ between the lines F ₁ connecting the center of gravity O and origin axis S in the conveying direction F and conveyed P.
[0007]
Also, in [Patent Document 1], rotation is performed by setting back a base axis in a direction opposite to the transport direction of the transport path by a driving source, and thereby, the transported object is reversed by 90 ° with a minimum radius so that the transported object is caught in the base axis. A technique for changing the posture is disclosed.
[0008]
Also, in [Patent Document 2], when a transported object that has been transported vertically by a conveyor comes into contact with an obstacle member, the transported object can be reversed by 90 °, or the conveyor is composed of oblique rollers. Thus, a technique that can assist the reversal of the conveyed product is disclosed.
[0009]
However, in the case of [Patent Document 1], a mechanism for rotationally driving the base point shaft by a driving source such as a motor is required. In the case of [Patent Document 2], the conveyance that has been conveyed vertically as described above. There is a problem in effectively changing the posture of an object.
[0010]
The present invention has been made in order to solve the above-described problems, and it is a short section on a conveyor by using only a mechanical mechanism without using any electrical component such as a motor or pneumatic equipment such as a cylinder. It is an object of the present invention to provide a reversing device and a reversing method for a conveyed product that can reliably change the posture to a predetermined reversing angle.
[0011]
[Means for Solving the Problems]
In order to achieve the above-described object, the reversing device for a conveyed product according to the present invention is a circuit that is in a conveyor-like movement, and is configured so that the vicinity of the front end corner of the conveyed product that has been conveyed on the conveying path is brought into contact. A movable first lever, and an upstream side of the first lever, the first lever being pushed by the conveyed object, retreating and rotating to interlock with the movement of the rear side edge of the conveyed object The second lever that presses and urges and moves in the reversing direction, and the tip side of the conveyed product that is in the middle of reversing contact with the second lever and further urges and moves in the reversing direction. And a first fixing bar having a roller at the tip for reversing at 90 °.
[0012]
Further, as an embodiment of the reversing device of the conveyed product according to the present invention, the first lever is moved backward by the tension spring force after the conveyed product is urged and moved in the reverse direction by the second lever. The vicinity of the corner of the tip of the conveyed product is pushed back to the upstream side so that the reverse action of the conveyed product is forcibly performed.
[0013]
Moreover, as an embodiment of the reversing device for a conveyed product according to the present invention, a second fixed bar is arranged on the downstream side of the first fixed bar so that the conveyed product can be used with the second fixed bar as a base axis. Further, it is inverted 90 ° and inverted 180 ° so that the posture can be changed.
[0014]
Further, the reversing method of the conveyed product according to the present invention is a reversing method of reversing the conveyed product that has been conveyed on the conveyor-like moving conveyance path by a predetermined angle, and the vicinity of the corner of the tip side of the conveyed product contacts the base axis. After the operation, the rear end of the side of the conveyed product is urged in the reverse direction by the pressing means to change the posture.
[0015]
According to the reversing device for the transported object described above, the transported object that has been transported along the transport path is brought into contact with the first lever at the vicinity of the tip side corner, so that the first lever is pressed to rotate backward. In conjunction with this operation, the rear end of the side of the conveyed product is pushed out by the second lever and is urged and moved in the reverse direction. And the attitude | position of the conveyed product in the middle of reversal can be changed into the state reversed by 90 degrees by the 1st fixed bar in the downstream of a 1st lever.
[0016]
Further, according to the embodiment of the reversing device for the conveyed product, after the conveyed product is urged and moved in the reversing direction by the second lever, the first lever is returned by the tension spring force, thereby the conveyed product. It is possible to force the reversing action of the conveyed product by pushing back the vicinity of the tip side corner of the sheet toward the upstream side.
[0017]
In addition, according to the embodiment of the reversing device for the conveyed product, the second fixed bar is arranged on the downstream side of the first fixed bar, so that the conveyed product is further 90% with the second fixed bar as a base axis. It can be reversed and can be changed to a 180 ° posture.
[0018]
Further, according to the reversing method of the conveyed product according to the present invention, after the operation in which the vicinity of the tip side corner portion of the conveyed product that has been conveyed on the conveying path is brought into contact with the base axis, the side rear end of the conveyed product is pressed. Thus, it is possible to change the posture by pushing and urging in the reverse direction.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a reversing apparatus and a reversing method for a conveyed product according to the present invention will be described below with reference to the drawings, taking as an example a rectangular package that wraps a disc whose recording is a recording medium such as a DVD.
[0020]
FIG. 1 is a plan view of a reversing device for reversing a package to a 90 ° posture. A package 2 that has been transported horizontally on a belt conveyor 1 (hereinafter referred to as conveyor 1) is reversed 90 ° vertically. This is the state before starting.
[0021]
A frame 3 is arranged in parallel on one side of the conveyor 1 (front side in FIG. 1), and the frame 3 has a first lever 5 that swings around a fulcrum shaft 4 as a fulcrum. The front end side of the first lever 5 extends long on the conveyor 1, and a non-rotatable roller 6 is attached to the front end portion 5a.
[0022]
On the upstream side of the first lever 5 described above, there is a crank-shaped second lever 8 that is rotatable on the frame 3 with the fulcrum shaft 7 as a fulcrum. The distal end side of the second lever 8 is slightly extended on the conveyor 1, and a rotatable roller 9 is attached to the distal end portion 8a. Further, on the upstream side of the first lever 5, there is a guide plate 10 that guides the side 2 a of the package 2 so as to slightly protrude on the conveyor 1, and in the recess 10 a that is cut out by the guide plate 10. The roller 9 is adapted to be accommodated. Further, the guide plate 10 reaches a position where a part 11 thereof is in contact with the first lever 5.
[0023]
Further, the rear end portion 5 b of the first lever 5 and the rear end portion 8 b of the second lever 8 are connected by a link 12. Further, the first lever 5 has a tension spring 14 attached between a rear end portion 5b of the first lever 5 and a spring hook pin 13 in a direction opposite to the link 12. Here, an urging force that rotates the first lever 5 in the clockwise direction is generated by the pulling force of the tension spring 14, but the second lever 8 connected via the link 12 contacts the stopper 15. As a result, the first lever 5 and the second lever 8 maintain their postures.
[0024]
Further, on the downstream side of the first lever 5, a first fixing bar 16 whose length can be adjusted is fixed to the frame 3 by bolts 17 and 17. A fixed roller 18 is attached to the distal end portion 16 a of the first bar 16. The fixed roller 18 can be adjusted in the range of the long holes 16b and the moving direction of the conveyor 1. Further, the fixed roller 18 is disposed at a position elongated in the oblique direction on the downstream side of the roller 6 of the first lever 5. Reference numeral 19 denotes a guide plate for guiding the package 2 to the reverse position.
[0025]
Next, an operation of inverting the package 2 to a 90 ° posture will be described with reference to FIGS.
[0026]
FIG. 1 shows a state in which the package 2 has been conveyed on the conveyor 1 and has reached the reverse position. At this time, the package 2 is in contact with the roller 6 of the first lever 5 in the vicinity of the corner of the front end side 2b, and the rear end side of the side 2a of the package 2 corresponds to the roller 9 of the second lever 8. Here, the package 2 is moved in the downstream direction by the conveyor 1, so that the tip side 2 b of the package 2 is pushed back against the spring force of the tension spring 14. The lever 5 rotates counterclockwise about the fulcrum shaft 4 as shown in FIG. In conjunction with this operation, the tension spring 14 extends, and the second lever 8 rotates counterclockwise about the fulcrum shaft 7 via the link 12, so that the second lever 8 The rear end side of the package 2 is pushed out by the roller 9, and the package 2 is changed to an oblique posture.
[0027]
The package 2 operates in the reverse direction along with the movement of the conveyor 1 from the oblique posture of FIG. 2 using the roller 6 of the first lever 5 as a fulcrum. At this time, the first lever 5 is operated by the tension spring 14. By the action of rotating clockwise by the pulling force and returning to the original position, the action of pushing the vicinity of the corner of the front end side 2b of the package 2 upstream by the roller 6 works, as shown in FIG. In addition, the attitude of the package 2 is forcibly changed in the reverse direction.
[0028]
Here, when the reversing force of the package 2 in FIGS. 2 and 3 is represented by a vector diagram, in the case of FIG. 2, the conveyance direction is F from the center of gravity O of the package 2, and the center of gravity O of the package 2 and the fulcrum shaft The component force when the line F ₁ connecting the roller 6 is F ₂ , and the package 2 is mechanically tilted to change the posture so that the reversal of the package 2 can be promoted. On the other hand, in the case of FIG. 3, the component force when the conveyance direction is F from the center of gravity O of the package 2 and the line F ₁ connecting the center of gravity O of the package 2 and the roller 6 serving as the fulcrum shaft is F _3. Thus, it can be understood that the package 2 is greatly inclined and generates a large reversal force.
[0029]
Thereafter, the package 2 can be easily reversed from the posture of FIG. 3 with the roller 6 as a fulcrum shaft, and the tip side 2b is transferred from the roller 6 to the roller 18 of the first fixing bar 16 as the package 2 is reversed. As shown in FIG. 4, the package 2 is brought into a posture in which the package 2 is vertically inverted by 90 ° and is transported to the next process.
[0030]
As described above, the transport device according to the present invention does not require any drive source such as a motor or pneumatic mechanism such as a cylinder, and the package 2 is positioned at 90 ° in a short section of the conveyor 1 with only a simple mechanical mechanism. Can be reversed.
[0031]
Next, a reversing device for reversing the package 2 to a 180 ° posture will be described with reference to FIGS.
[0032]
The reversing device for reversing the package 2 to the 180 ° attitude is additionally provided with a second fixing bar 20 on the downstream side of the device for reversing the package 2 to the 90 ° attitude, that is, on the downstream side of the first fixing bar 16. The same components as those in FIGS. 1 to 4 are denoted by the same reference numerals, and redundant description is omitted.
[0033]
According to this, on the downstream side of the first fixing bar 16, the second fixing bar 20 whose length is adjustable is fixed to the frame 3 by the bolts 21 and 21. The second bar 20 is longer than the first fixed bar 16, and the first and second non-rotatable rollers 22 and 23, which are lower at the front end portion 20 a at the upstream side and higher at the downstream side, are stepped. Is arranged.
[0034]
Next, an operation for reversing the package 2 to a 180 ° posture will be described.
In FIG. 4, the package 2 that has been vertically inverted by the roller 18 of the first fixing bar 16 in the 90 ° posture is then placed near the corner of the side 2 c of the package 2. 1, the roller 22 is used as a fulcrum, and the posture is changed in the reverse direction. Further, the side 2 c of the package 2 is brought into contact with the second roller 23, and the roller 23 serves as a fulcrum. Thus, the posture is changed in the reverse direction, and as a result, the package 2 is conveyed in a posture state that is vertically inverted by 180 ° as indicated by a virtual line in FIG.
[0035]
As described above, the reversing device for reversing the package 2 to the 180 ° posture adds the second fixing bar 20 on the downstream side of the first fixing bar 16 of the reversing device for reversing the package 2 to the 90 ° posture. Therefore, it is possible to easily change whether the package 2 is inverted by 90 ° or 180 ° depending on the presence / absence of the second fixing bar 20. .
[0036]
The present invention is not limited to the embodiment described above and shown in the drawings, and various modifications can be made without departing from the scope of the invention.
[0037]
In the embodiment of the present example, the case where the package 2 that has been conveyed horizontally on the conveyor 1 is inverted 90 ° vertically or the package 2 that is horizontally oriented is inverted 180 ° has been described. The case where the package that has been conveyed in the vertical direction is inverted 90 ° in the horizontal direction or the package 2 in the vertical direction is inverted 180 ° can be easily achieved by using the inversion device of the present invention.
[0038]
Further, the shape of the package is not limited to a rectangular shape, and may be a square shape or other shapes.
[0039]
【The invention's effect】
As described above, according to the conveyed product reversing device according to the present invention, the rotation of the conveyed object that has been transported in the conveying path and that is in contact with the vicinity of the tip side corner of the conveyed object. A movable first lever, and an upstream side of the first lever, the first lever being pushed by the conveyed object, retreating and rotating to interlock with the movement of the rear side edge of the conveyed object The second lever that presses and urges and moves in the reversing direction, and the tip side of the conveyed product that is in the middle of reversing contact with the second lever and further urges and moves in the reversing direction. By providing a first fixed bar with a roller at the tip for reversing to 90 °, only a simple mechanical mechanism is required without requiring a drive source such as a motor or a pneumatic mechanism such as a cylinder. To reverse the transported object to 90 ° posture in the short section of the transport path There is an effect that can be.
[0040]
Further, after the conveyed object is urged and moved in the reverse direction by the second lever, the first lever is restored by the tension spring force so as to push the vicinity of the leading edge of the conveyed object back upstream. Thus, the posture of the conveyed product can be forcibly changed in the reverse direction with a simple mechanism.
[0041]
In addition, since the second fixed bar is arranged downstream of the first fixed bar, the conveyed product is further inverted by 90 ° with the second fixed bar as the base axis, and the conveyed product is inverted by 180 °. Can be changed to the posture.
[0042]
Furthermore, according to the reversing method of the conveyed product according to the present invention, the reversing method of reversing the conveyed product that has been conveyed on the conveyor-like moving conveyance path by a predetermined angle, wherein the vicinity of the tip side corner portion of the conveyed product is the base axis. After the movement touched, the rear end of the side of the conveyed product is urged in the reverse direction by the pressing means to change the posture, so that the conveyed product is reversed to a 90 ° posture in a short section of the conveyance path. There is an effect that can be.
[Brief description of the drawings]
FIG. 1 is a plan view of a reversing device according to the present invention for reversing a package into a 90 ° posture, and is an explanatory view before the package is reversed.
FIG. 2 is a plan view of the reversing device of the present invention that similarly reverses the package to a 90 ° posture, and is an explanatory view when the package starts a reversing operation.
FIG. 3 is also a plan view of the reversing device of the present invention that similarly flips the package to a 90 ° posture, and is an explanatory view of an operation state in which the package is forcibly reversed.
FIG. 4 is also a plan view of the reversing device of the present invention that similarly reverses the package to a 90 ° posture, and is an explanatory view showing a state in which the package is reversed to a 90 ° posture.
FIG. 5 is a plan view of a reversing device for reversing the package to a 180 ° posture, and is an explanatory view showing a state in which the reversing operation is further started from the 90 ° posture of the package.
FIG. 6 is a plan view of a reversing device for reversing the package to a 180 ° posture, and is an explanatory view of an intermediate operation in which the package is reversed from a 90 ° posture.
7A is a vector diagram of a reversal force when the conveyed product performs a reversing operation with the base axis as a fulcrum when the conveyed product has been conveyed vertically. FIG. B is a vector diagram of the reversal force when the conveyed product reverses with the base axis as a fulcrum when the conveyed product is conveyed sideways.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Conveyor, 2 ... Package, 3 ... Frame, 4 ... Supporting shaft, 5 ... 1st lever, 6 ... Roller, 7 ... Supporting shaft, 8 ... 2nd lever, 9 ... Roller, 10 ... Guide plate, 12 ... link, 14 ... tension spring, 15 ... stopper, 16 ... first fixing bar, 18 ... roller, 20 ... second fixing bar, 22, 23 ... roller

Claims (5)

A conveyor-like moving conveyance path;
A rotatable first lever having a roller at the tip end portion that is on the transport path and is in contact with the vicinity of the tip corner portion of the conveyed product that has been transported through the transport path;
The first lever is located on the upstream side of the first lever and presses the rear end of the side of the conveyed object in conjunction with the operation of the first lever being pressed and retracted and rotated by the conveyed object. A second lever having a roller at the tip that is biased and moved in the reverse direction with the roller of
A first side having a roller at the front end portion that is on the downstream side of the first lever and that is in contact with the tip side of the conveyed product that is in the middle of reversing and further urged and moved in the reversing direction, and reverses the conveyed product to 90 °. A fixed bar,
A reversing device for a conveyed product. The reversing device for a conveyed product according to claim 1,
After the conveyed object is urged and moved in the reverse direction by the second lever, the first lever is restored by the tension spring force, thereby pushing back the vicinity of the leading edge of the conveyed object to the upstream side. A reversing device for a conveyed product, wherein the reversing action of the product can be forcibly performed. The reversing device for a conveyed product according to claim 1,
By disposing the second fixed bar on the downstream side of the first fixed bar, the transported object can be further inverted by 90 ° using the second fixed bar as a base axis, and the posture can be changed by reversing to 180 °. A reversing device for a conveyed product. The reversing device for a conveyed product according to claim 1,
A reversing device for a conveyed product, wherein the conveyed product is a package containing a disk. A reversing method for reversing a transported object that has been transported through a conveyor-like transport path by a predetermined angle,
After the operation in which the vicinity of the tip side corner of the conveyed product is brought into contact with the base axis, the rear end of the lateral side of the conveyed product is forcibly urged in the reverse direction by the pressing means to change the posture. Inversion method.

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