JP2012041069A - Binding apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inexpensively provide a binding apparatus for not maximally lengthening a binding cycle time, by performing binding of a binding band in the same state in both end parts of a bound object.SOLUTION: The binding apparatus for binding the bound object B with the binding band (b) includes a fixing frame 1, a carrier conveyor 2 arranged under the frame and carrying the bound object B, binding means 3 for tightly binding the bound object B with the binding band, and front pressing means 4 and rear pressing means 5 for pressing the bound object B from above in front and in rear in the carrying direction of the binding means 3. The front pressing means 4 includes a lifting frame 4a arranged immovably in the carrying direction and liftably in the vertical direction, universal carrying means 4b movably arranged in the carrying direction in the lifting frame 4a, and pressing driving means 5b for lifting the lifting frame 4a. The rear pressing means 5 includes pressing means 5a for pressing the bound object B from above and the pressing driving means 5b for lifting the pressing means.

Description

  The present invention relates to a bundling device for bundling an object to be bundled that contracts when pressed, such as cardboard (in this specification and claims, simply referred to as “bundled object”).

  In a state in which a plurality of (corrugated cardboards) in a folded state before assembling to be assembled into a corrugated cardboard box (referred to simply as corrugated cardboard in this specification and the claims), when they are pressed from above, they contract. Therefore, when these laminated cardboards, which are a kind of objects to be bound, are bound by a binding band or the like, they are contracted in a state of being pressed from above and are bound by the binding band.

  However, when both ends of the laminated cardboard (bound object) are bound with a binding band, when the pressed state is released after binding only one end in the pressed state, the other end that is not bound Expands. After that, even if the other end portion that has expanded is pressed again and bound with a binding band, the binding state at both ends will not be exactly the same, and when the binding band is subsequently removed, the material of the object to be bound, etc. Depending on the nature of the, there may be cases in which the heights of the two expanded ends differ.

  For this reason, in the conventional bundling device, in the bundling station, the cardboards stacked from above are pressed, and two bundling means are juxtaposed before and after the pressed portion, Are configured to be bound simultaneously by a binding band (referred to as Patent Document 1).

In such a case, a bundling device (reference technology) is configured such that the bundling means can be moved from one end of the bundling object to the other end of the bundling object pressed from above. 1) is also conceivable.
Japanese Utility Model Publication No. 6-27505

  However, in the case of “Patent Document 1”, two units of complicated and expensive bundling means are required, and in the case of “reference technique 1”, in order to make the complicated and expensive bundling means further movable. It will be a more complicated configuration. In either case, the bundling device is expensive. Further, in the case of the reference technique 1, it takes time to move the complicated and heavy binding means, and the time required for one binding cycle becomes long.

  The present invention has been made in view of such a situation, and the binding band can be bound in exactly the same state at one end and the other end of the object to be bound, and is inexpensive and conventional. It is an object of the present invention to provide a bundling device that does not make the time required for a bundling cycle as long as possible as compared with the above bundling device.

A bundling device according to the present invention is a bundling device that wraps a bundling band around a bundling object that contracts when pressed, such as cardboard,
Such a bundling device is disposed in a fixed frame, a transport conveyor that is placed below the fixed frame and transports the object to be bound, and is disposed so as not to move relative to the fixed frame. Bundling means that wraps and binds the binding band around the object to be bound, and the front pressing means and the rear part that are disposed before and after the binding means in the conveying direction and press the object to be bound from above Pressing means,
An elevating frame in which the front pressing means is disposed so as to be immovable in the conveying direction and movable up and down with respect to the fixed frame, and the object to be bound is arranged in the elevating frame in the conveying direction. A freely moving means for pressing the object to be bound in a relatively movable state, and a pressing drive means for raising and lowering the lifting frame;
The rear pressing unit includes a pressing unit that is disposed on the fixed frame so as not to move in the transport direction and presses the object to be bound from above, and a pressing driving unit that moves the pressing unit up and down.
When binding the objects to be bound, the transport conveyor is stopped when the first binding position of the objects to be bound is located at the position of the binding means, and both ends of the bound objects on the transport conveyor in the transport direction are In a state where the pressing drive means is operated and the front pressing means and the rear pressing means are pressed from above, the binding means is operated to wrap around the binding band and bind the binding band, and then the press driving means. Is operated to raise the rear pressing means, and then the conveyor is driven to convey until the second binding position of the object to be bound is located at the position of the binding means. A binding band that maintains the state in which the object is pressed from above by the front pressing means via the universal movement means, and then binds by operating the binding means at the second binding position of the object to be bound Parallel to Characterized in that it has been configured to be tied in bundles band.

Thus, according to the binding apparatus configured as described above, when the objects to be bound are bound, the conveyor is stopped when the first binding position of the objects to be bound is positioned at the binding position by the binding means. Then, in the state where the objects to be bound on the conveyor are pressed from above by the front pressing means and the rear pressing means by operating the respective pressing driving means, the binding means is operated between them. Tighten with a binding band, then actuate the pressing drive means to raise the rear pressing means, and then drive the conveyor to position the second binding position of the object to be bound at the position of the binding means Transport to. During such transport, the object to be bound is kept pressed from above by the front pressing means by the free movement means, and then the binding means is operated at the second binding position of the object to be bound. BDSM in the band.
In such a bundling device, it is sufficient to provide only one unit of expensive bundling means, so that it can be realized at a low cost, and the bundling means is configured to be immovable in the transport direction and the object to be bundled is located upward. Since it is transported by the transport conveyor while being pressed by the front pressing means, the binding cycle time is not made as long as possible as compared with the conventional binding device.

  In the bundling device, the bundling device further includes a control device, and the control device may perform the transport when the first bundling position of the bundling object is positioned at the bundling means when bundling the bundling object. The bundling means in a state where the conveyor is stopped and both end portions in the conveying direction of the objects to be bound on the conveying conveyor are pressed from above by the front pressing means and the rear pressing means by operating the pressing driving means. , And the binding band is circulated and bound with the binding band. Next, the pressing drive means is operated to raise the rear pressing means, and then the conveyor is driven to drive the second of the objects to be bound. The bundling position is conveyed until it is located at the bundling means, and during this conveyance, the movement drive means is operated in accordance with the conveyance conveyor to move the object to be bundled through the free movement means. Control is performed so that the state of pressing from above by the pressing means is maintained, and then the binding means is operated at the second binding position of the object to be bound, and is bound by the binding band in parallel with the binding band. If it is comprised so, a preferable automatic binding apparatus can be implement | achieved.

  In the bundling device, when at least one of the front pressing means and the rear pressing means is a telescopic pneumatic cylinder, the pressure is simple and there is no fear of contaminating the surroundings with oil or the like. It becomes a drive means.

The free moving means is
Any one of a free roller conveyor, a free chain conveyor, and a free slat conveyor, and such a free roller conveyor, a free chain conveyor, and a free slat conveyor are arranged between the one and the lifting frame, and the lifting frame It is comprised by the movement drive means to move to the said conveyance direction,
When the bound object is movable in the transport direction in a pressed state,
The second binding position is set to the position of the binding means in a state where the object to be bound is reliably pressed up and down (clamped) between the transport conveyor and the free roller conveyor, free chain conveyor, or free slat conveyor. It becomes the structure which can be conveyed until it positions.
According to this configuration, a bundling device that is simple, inexpensive, and highly reliable can be realized.
In addition, even when the transport speed of the transport conveyor does not coincide with the travel speed of the moving drive means when transporting until the second binding position of the bound object is located at the binding position of the binding means, the bound object Is pressed in such a manner that it can move in the transport direction from above via any of the free roller conveyor, free chain conveyor, and free slat conveyor. Therefore, any of the free roller conveyor, free chain conveyor, and free slat conveyor Absorbs the difference in moving speed.

The free moving means is
Consists of either a drive roller conveyor, a drive chain conveyor, or a drive slat conveyor that conveys the object to be bound in the conveyance direction at the same speed in synchronization with the conveyor.
When the object to be bound is movable in the transport direction in a pressed state, the object to be bound is transferred between the transport conveyor and any one of the drive roller conveyor, the drive chain conveyor, and the drive slat conveyor. In a state of being surely pressed up and down (clamped), the object to be bound can be conveyed until the second binding position is located at the position of the binding means.

  According to this binding apparatus, the binding band can be bound in exactly the same state at both ends of the object to be bound, and the binding cycle time can be made as low as possible and longer than that of the conventional binding apparatus. No bundling device can be obtained.

1 is an overall side view showing a schematic configuration of a bundling device according to an embodiment of the present invention. It is the rear view which looked at the binding apparatus shown in FIG. 1 from the conveyance direction back. (A)-(f) is a side view of the principal part which shows each part of the binding process of the binding apparatus shown in FIG. 1, FIG. (G)-(j) is a side view of the principal part which shows each one part of the binding process of the binding apparatus shown in FIG. 1, FIG. It is a block diagram which shows the structure of the binding apparatus shown in FIGS.

  Hereinafter, a bundling device according to an embodiment of the present invention will be described more specifically with reference to the drawings.

  A binding apparatus A shown in FIGS. 1 and 2 has a fixed frame 1, a transport conveyor 2 that is placed below the fixed frame 1 and transports the object B to be bound, and is immovable on the fixed frame 1. Bundling means 3 arranged and bound around the binding object B placed on the conveyor 2 by binding the binding band b, and before and after the binding means 3 in the transport direction X It has the front part press means 4 and the rear part press means 5 which press the both ends in this conveyance direction X of B from upper direction.

  The fixed frame 1 has four vertical frames 1a erected at four corners, and the four vertical frames 1a are connected to each other by a horizontal frame 1b at the upper end. The lower ends of the four vertical frames 1a are fixed to the concrete floor by anchors.

Of the four vertical frames 1a, the conveyor 2 is arranged so as to penetrate between the vertical frames 1a arranged at the front part and between the vertical frames 1a arranged at the rear part in a plan view. (Refer to the direction of arrow X in FIG. 1 for the penetration direction).
And in the case of this Example, this conveyance conveyor 2 is comprised with the drive roller conveyor. However, it may be constituted by a driven slat type conveyor, a driven chain conveyor, or another type of conveyor.

  The bundling means 3 includes a reel 3a for holding a bundling band b wound in a coil shape so that the bundling band b can be supplied, and a bundling band b formed in an endless shape so as to circulate the object to be bound from the tip of the reel 3a. The band guide 3b through which the wire is inserted and the outer periphery of the object to be bundled B are circulated along the band guide 3b, and the wrapped band b is tightened so as to be along the outer periphery of the object to be bundled B, and then overlapped. A welding cutting device 3c that welds and cuts the portion. In this embodiment, the band guide 3b is attached to the fixed frame 1 side.

The front pressing means 4 is arranged so as to be immovable in the conveying direction (refer to the direction of the arrow X in FIG. 1) with respect to the fixed frame 1 and capable of moving up and down in the vertical direction, It has a free moving means 4b arranged so as to be movable in the conveying direction with respect to the lifting frame 4a, and a pressing drive means 4d for lifting and lowering the lifting frame 4a. Further, guide rods 4e that are spaced apart from each other and are guided in the ascending / descending operation are arranged on both sides of the pressing drive means 4d in the transport direction.
In this embodiment, the universal conveying means 4b is arranged between a free roller conveyor and the elevating frame 4a and the free roller conveyor, and the universal moving means 4b is arranged in the conveying direction with respect to the elevating frame. It is comprised with the movement drive means 4c to move. Instead of the free roller conveyor, a free chain conveyor, a free slat conveyor, a caster conveyor or the like may be used.

  Moreover, although not shown in figure, the said universal conveyance means 4b can also be comprised by either a drive roller conveyor, a drive chain conveyor, or a drive slat conveyor which can be conveyed in synchronism with the said conveyance conveyor 2 at the same speed. .

  The rear pressing means 5 is arranged so as not to move in the transport direction with respect to the fixed frame 1 and presses the binding object B from above. The pressing means 5b moves the pressing means 5a up and down. Have

  In this embodiment, the movement driving means 4c, the pressing driving means 4d, and the pressing driving means 5b are composed of pneumatic cylinders. However, the pressure driving means 4d and the pressure driving means 5b can use hydraulic cylinders when a large pressing force is required. The movement driving means 4c, the pressing driving means 4d, and the pressing driving means 5b may be all or part of a hydraulic cylinder, or a mechanical-hydraulic cylinder, or a mechanical driving means (for example, a screw). An actuator such as a mechanism or a link mechanism) may be used. Further, when a pneumatic or hydraulic cylinder is used, a two-stage cylinder can be used. In the case of such a two-stage system, the cylinder can be made compact or the extension length can be increased.

The bundling device A includes a control device 6 for controlling the operations of the transport conveyor 2, the movement driving unit 4c, the pressing driving unit 4d, the pressing driving unit 5b, and the bundling unit 3. .
As shown in FIG. 5, the control device 6 is connected to the transport conveyor 2, the movement drive means 4c, the press drive means 4d, and the press drive means 5b through signal lines.

Further, the binding device A detects the sensors 7 and 8 that detect that the object to be bound B is located at the first binding position or the second binding position on the fixed frame 1 and the frame of the conveyor 2 (see FIG. 5) and is configured to detect that the object to be bound B has been conveyed to the binding device A.
Further, the detection sensors 7 and 8 (see FIG. 5) can be configured with limit switches such as optical ones (light sensor, image sensor (camera), etc.) or mechanical ones.
As shown in FIG. 5, the detection sensors 7 and 8 are connected to the control device 6 through signal lines.
Of course, instead of the signal line, it may be wireless.

  Thus, the binding device A configured as described above can bind a shrinkable binding object such as cardboard as follows. Hereinafter, with reference to FIG. 3 and FIG. 4, it demonstrates with the content of control of the said control apparatus 6. FIG.

  In the initial state as shown in FIG. 3 (a), when the main power supply of the binding device A is turned on, the control device 6 moves the transport conveyor 2 so that it is shown in FIG. 3 (b). The binding object B placed above the conveyor 2 is moved to a predetermined position of the binding apparatus A (position F of the binding object B indicated by a two-dot chain line in FIG. 1 bundling position is conveyed). When the object to be bundled B is conveyed to the predetermined position F in this way, when the detection sensor 7 (see FIG. 5) detects it, the control device 6 receives a signal to the effect of detection, The conveyor 2 is stopped.

  In this state, the band guide 3b of the binding means 3 is located at the first binding position of the objects to be bound B.

  At this position, as shown in FIG. 3C, the control device 6 operates the pressing drive means 4d and the pressing drive means 5b. As a result, the rear half of the upper surface of the object to be bound B is pressed from above by the free roller conveyor of the free moving means 4b of the front pressing means 4, and the front end of the upper surface is It is pressed by the pressing means 5a.

When the object B is thus pressed from above in the state described above, the control device 6 operates the binding means 3 as shown in FIG. As a result, the bundling means 3 tightens the bundling band b that passes through the band guide 3b and circulates the bundling object B, and the free movement means 4b and the pressing force of the bundling object B in the transport direction are tightened. The position between the means 5a, that is, the front end portion which is the first binding position is bound by the binding band b.
When the binding is completed, as shown in FIG. 3E, the control device 6 operates the pressing drive unit 5b to press the front end portion of the upper surface of the object to be bound B. Raise 5a.
Next, as shown in FIG. 3 (f), the control device 6 operates the transport conveyor 2 and the movement driving means 4c to move the object to be bound B to a predetermined distance L (see FIG. 1). ) Only move. That is, when the sensor is moved by a predetermined distance L (see FIG. 1), the detection sensor 8 (see FIG. 5) is activated, and the band guide 3b of the binding means 3 is at the second binding position of the object to be bound B. The control device 6 stops the conveyor 2.

During such transport, most of the latter half of the upper surface of the object to be bound B is pressed from above by the free roller conveyor of the free movement means 4b, and the front end of the object to be bound B is bound by the binding band b. Since it is conveyed in the state which was made, the to-be-bound object B does not expand | swell upwards.
Further, even if the transport speed of the transport conveyor 2 and the extension speed of the movement drive means 4c are slightly deviated, such "slight deviation" is absorbed by the rotation of the free roller conveyor of the free movement means 4b. . In other words, the position of the free roller conveyor of the free moving means 4b is relatively displaced from the object to be bundled B by a “slight shift”, and the upper surface of the object to be bundled B remains pressed. To maintain.

When the movement of the object to be bound B by the transport conveyor 2 is completed, as shown in FIG. 3 (g), the control device 6 operates the pressing drive means 5b to move the object to be bound B. The pressing means 5a located above is lowered to press the upper surface of the object to be bound B, and the movement driving means 4c of the free movement means 4b is contracted as shown in FIG. 3 (h). The free roller conveyor is retracted in the non-conveying direction to prevent the pressing means 5a from interfering with the free moving means 4b. The retraction of the free roller conveyor of the free movement means 4b is more precisely the space through which the binding band b passes between the free roller conveyor and the pressing means 5a, more precisely, the band guide 3b of the binding means 3. This is to form a space (gap) in which can be positioned. Although not shown, the free roller conveyors of the pressing means 5a and the free moving means 4b are arranged so as not to interfere in plan view.
Depending on the properties of the object to be bound, when the movement driving means 4c of the free movement means 4b is contracted and the free roller conveyor is retracted in the non-conveying direction, the pressing means 5a is lowered and the object to be bound B In some cases, it is not necessary to press the upper surface of the plate.

In this state, as shown in FIG. 3 (i), the control device 6 operates the bundling means 3. As a result, the binding means 3 tightens the binding band b inserted into the band guide 3b, and the free roller conveyor of the free movement means 4b and the pressing means 5a of the object B to be bound in the transport direction. The rear end that is the position between the two, that is, the second binding position, is bound by the binding band b.
When the binding is completed, as shown in FIG. 3J, the control device 6 operates the pressing drive means 4d and the pressing drive means 5b to press the upper surface of the object to be bound B. The conveying means 4b and the pressing means 5a are raised.
Next, the control device 6 operates the transport conveyor 2 to discharge the bound object B, which has been bound, from the binding device A to the right in FIG. The free driving conveyor 4c is operated to move the free roller conveyor of the universal conveying means 4b back to the initial position, that is, the position (home position) shown in FIG. 1, and one bundling cycle is completed.

  As described above, according to the binding apparatus A, one binding means 3 is fixed to the fixed frame 1 side, the object B is moved, and the first binding position and the first position of the object B are moved. Two binding positions can be bound by the binding band b.

  For this reason, the binding device A can be provided at low cost, and the two positions of the object to be bound B, that is, the first binding position and the second binding position can be bound by the binding band b.

In this embodiment, there are two binding positions, the first binding position and the second binding position. However, there are three places where the third binding position is added or four places where the fourth binding position is added if necessary. It will be clear from the above description to those skilled in the art that the same can be done.
Needless to say, the binding position may be a position other than both ends of the object to be bound, if necessary.

  Further, the present invention is not limited to the above-described embodiments, and it goes without saying that the present invention can be implemented in various forms within the scope based on the technical idea of the present invention.

  The horizontal pillow type packaging apparatus according to the present invention can be widely used for packaging various products.

A ... Bundling device
B ... Bundled material
1 ... Fixed frame
2 ... Conveyor
3 ... Bundling means
4 ... Front pressing means
4b ... Free moving means
5 ... Rear pressing means

Claims (5)

A bundling device that wraps a bundling band around a bundling object that contracts when pressed, such as cardboard,
Such a bundling device is disposed in a fixed frame, a transport conveyor that is placed below the fixed frame and transports the object to be bound, and is disposed so as not to move relative to the fixed frame. Bundling means that wraps and binds the binding band around the object to be bound, and the front pressing means and the rear part that are disposed before and after the binding means in the conveying direction and press the object to be bound from above Pressing means,
An elevating frame in which the front pressing means is disposed so as to be immovable in the conveying direction and movable up and down with respect to the fixed frame, and the object to be bound is arranged in the elevating frame in the conveying direction. A freely moving means for pressing the object to be bound in a relatively movable state, and a pressing drive means for raising and lowering the lifting frame;
The rear pressing unit includes a pressing unit that is disposed on the fixed frame so as not to move in the transport direction and presses the object to be bound from above, and a pressing driving unit that moves the pressing unit up and down.
When binding the objects to be bound, the transport conveyor is stopped when the first binding position of the objects to be bound is located at the position of the binding means, and both ends of the bound objects on the transport conveyor in the transport direction are In a state where the pressing drive means is operated and the front pressing means and the rear pressing means are pressed from above, the binding means is operated to wrap around the binding band and bind the binding band, and then the press driving means. Is operated to raise the rear pressing means, and then the conveyor is driven to convey until the second binding position of the object to be bound is located at the position of the binding means. A binding band that maintains the state in which the object is pressed from above by the front pressing means via the universal movement means, and then binds by operating the binding means at the second binding position of the object to be bound Parallel to Bundling apparatus characterized by being configured to tightly bound bundles band.   The binding device further includes a control device, and the control device stops the conveying conveyor when the first binding position of the binding object is located at the position of the binding means when the binding object is bound. The binding band is operated by operating the binding means in a state where both ends in the transport direction of the object to be bound on the transport conveyor are pressed from above by the front pressing means and the rear pressing means by operating the pressing drive means. And then the rear driving means is raised by operating the pressing drive means, and then the conveying conveyor is driven so that the second binding position of the object to be bound is the binding means. In this case, the movement driving means is operated in accordance with the conveyance conveyor, and the object to be bound is pushed from above by the front pressing means via the flexible movement means. And then, the binding means is operated at the second binding position of the object to be bound, and is controlled so as to be bound with the binding band in parallel to the binding band. The bundling device according to claim 1.   The bundling device according to claim 1 or 2, wherein at least one of the front pressing means and the rear pressing means is a pneumatic cylinder that can be expanded and contracted. The free moving means is
Any one of a free roller conveyor, a free chain conveyor, and a free slat conveyor, and such a free roller conveyor, a free chain conveyor, and a free slat conveyor are arranged between the one and the lifting frame, and the lifting frame It is comprised by the movement drive means to move to the said conveyance direction,
The binding apparatus according to any one of claims 1 to 3, wherein the object to be bound is movable in the transport direction in a pressed state. The universal moving means is
Consists of either a drive roller conveyor, a drive chain conveyor, or a drive slat conveyor that conveys the object to be bound in the conveyance direction at the same speed in synchronization with the conveyor.
The binding apparatus according to any one of claims 1 to 3, wherein the object to be bound is movable in the transport direction in a pressed state.

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