JP2001277378A - Positioning and fixing device for folding bar in folder gluer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve such an issue that it is impossible to correctly position a part near the center of a folding bar of a folder gluer and also correctly fold the part due to mechanical vibration and the like and consequently, product rejects tend to be produced. SOLUTION: First the folding bar is moved for positioning to a desired spot and the upstream side, downstream side and a part near the center of the folding bar are set to the identical position by correcting an error resulting from the movement with the help of a positioning device installed near the center of the folding bar. Further, the mechanical vibration is controlled by fixing the folding bar so that the vibration is not generated by the positioning device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an apparatus for positioning and fixing a folding bar in a folder gluer for folding a corrugated cardboard sheet.

[0002]

2. Description of the Related Art As shown in FIG. 9, a processing machine 1 for processing a plate-shaped corrugated cardboard sheet produced by a corrugator (not shown) includes a corrugated cardboard box machine 2 for performing printing, creases and grooving, and the like. Folder gluer 7 that folds corrugated cardboard sheets processed by box machine 2 and binds the desired number of sheets
Etc. For example, in a general cardboard sheet processing machine 1 called a flexo folder gluer, as shown in FIG. 9, a cardboard sheet S placed on a sheet supply table 4 of a sheet supply section 3 is subjected to downstream by a sheet supply member such as a kicker (not shown). It is supplied in the direction and sent to the printing unit 5. The printing unit 5 is generally provided with at least two units, and each printing unit 5a, 5b
To perform the desired printing. Subsequently, the printed corrugated cardboard sheet S is sent to the creasing slotter section 6, where the creaser applies a ruled line to bend the corrugated cardboard sheet S to a desired position. Then, the sheet is sent to the slotter to perform a grooving process on the cardboard sheet S.

Subsequently, the corrugated cardboard sheet S is bent by a folder gluer 7 connected to the downstream side of the corrugated cardboard box making machine 2 to be in a box state. The folder gluer 7 has an upper folding bar 10 and a lower folding bar 11 mounted on a first frame 8 and a second frame 9. An upper folding belt and a lower folding belt are wound around each of the folding bars 10 and 11. The cardboard sheet S sandwiched between the upper and lower folding belts is bent while passing through the upper and lower folding bars 10 and 11. In the bending step, one end of the corrugated cardboard sheet S is glued by a gluing device (not shown) provided in the folder gluer 7, and both ends of the corrugated cardboard sheet S are bent along the ruled lines formed by the creaser, and the corrugated cardboard sheet S is glued. A series of bending processes are completed by attaching one end to the other end. Then, the sheet is sent to the counter ejector 13 and bundled and discharged for each desired number of sheets. The folder gluer 7 may be a single folder gluer that is not directly connected to the cardboard box making machine 2. However, in the following detailed description of the present invention, a cardboard box having a configuration in which the folder gluer 7 is directly connected to the cardboard box making machine 2 will be described. It will be described with a processing machine.

As shown in FIG. 8, upper and lower folding bars 10, 11 penetrate through guide shafts 14 mounted on first frames 8a, 8b on the upstream side of the folding bars 10, 11, respectively. Folding bar brackets 18a, 18b are screwed onto screw shafts 17a, 17b which are mounted on the frames 8a, 8b. On the downstream side of the folder gluer 7, upper and lower folding bars 10, 11 penetrate through a guide shaft 15 which is mounted on the second frames 9a, 9b and connected to the driving device 16, and is connected to the second frame 9a, 9b.
Screw shafts 20a, 20b mounted on frames 9a, 9b
The folding bar brackets 21a and 21b are screwed into the brackets. Folding belt is driving device 1
6 driven. In order to change the position of the upper and lower folding bars 10 and 11 in the machine width direction according to the order change, the screw shafts 17a and 17b suspended on the first frames 8a and 8b are moved to the first moving devices 19a and 19.
b to rotate the screw shafts 20a, 20b suspended on the second frames 9a, 9b.
The upper and lower folding bars 10 and 11 are moved along the respective guide shafts 14 and 15 to be positioned by being rotated by b. In addition, folding bar 1
Although not shown, a moving device for moving 0, 11 in the machine width direction is provided on either the upstream side or the downstream side of the folding bars 10, 11, and the other moving device is not provided via a line shaft or the like. , The folding bars 10 and 11 may be moved in the machine width direction.

A stand 12 for supporting the upper and lower folding bars 10 and 11 is provided near the middle of the upper and lower folding bars 10 and 11 in the sheet flow direction. The stand 12 is configured such that guide rollers can move in the machine width direction on guide rails installed on the folding floor surface in accordance with the movement of the upper and lower folding bars 10 and 11 in the machine width direction.

[0006]

In the conventional folder gluer, production processing is performed as described above, and the movement and positioning of the folding bar of the folder gluer are moved to a desired position to be produced by the method described above. Is positioned. However, since the folding bars 10 and 11 themselves have a long mechanism, the positions of the folding bars 10 and 11 that are moved and positioned by the screw shafts 17 and 20 and the folding bars 1 and 11 are different.
It has been mechanically unavoidable that a positioning error occurs near the middle of the sheet flow direction 0,11.
Specifically, as shown in FIG. 6, for example, when the folding bars 10 and 11 move outward from desired positions, the first frames 8a and 8b and the second frames 9a and 9b
The folding bars 10 and 11 are moved by the screw shafts 17 and 20 mounted on the shaft, and the portion where the folding bars 10 and 11 are screwed with the screw shafts 17 and 20 is the folding bar by the rotation amount of the screw shafts 17 and 20. 10,
11 moves. That is, the folding bar 10,
The portion where 11 is screwed with the screw shafts 17 and 20 is positioned at a regular position to be positioned. However, the folding bars 10, 11 are long,
Near the middle of the sheet flow direction of No. 11 is the screw shaft 17, 2
Since the movement is performed in a state where the screw is pulled to a position where the screw shaft 1 is screwed, almost the middle of the folding bars 10 and 11 in the sheet flow direction is bent inward, and the screw shaft 1 is bent.
It does not move to the same position as the position where 7,20 is screwed. Similarly, when the folding bars 10 and 11 move inward from a desired position, the folding bar 1
Near the middle of the sheet flow direction of 0, 11 is bent outward, and the middle does not move to the same position where the screw shafts 17, 20 are screwed. That is, the positions of the folding bars 10 and 11 in the width direction in the flow direction of the corrugated cardboard sheet S are different between the upstream and downstream positions where the screw shafts 17 and 20 are screwed and almost in the middle of the sheet flow direction. When the corrugated cardboard sheet S is passed, a phenomenon occurs in which the folding bars 10 and 11 do not accurately guide the corrugated cardboard sheet S, so that accurate folding processing cannot be performed.

[0007] In addition, the folder gluer 7 is not only mechanically vibrated when the corrugated cardboard sheet is passed through the paper passing operation, but also occurs when the corrugated cardboard sheet S comes into contact with various parts of the machine when passing through the machine. Fine vibrations are also applied, and the vicinity of the middle of the long folding bars 10 and 11 in the sheet flow direction has a large amplitude in the machine width direction. When the corrugated cardboard sheet S is fed in such a state, even if the folding bars 10 and 11 are correctly positioned almost in the middle of the sheet flow direction, the vibration and amplitude of the corrugated cardboard sheets S cause the corrugated cardboard sheet S to be folded.
In the vicinity of the middle of the sheet flow direction of No. 11, the corrugated cardboard sheet S is not correctly guided, and a phenomenon that the corrugated cardboard sheet S is not guided accurately occurs, so that accurate bending cannot be performed. In addition to the above-described mechanical vibration, when the corrugated cardboard sheet S passes through the folder gluer 7 and is bent, the corrugated cardboard sheet S is bent inward by a strong force. Strong pressing force is applied inward. This folding bar 1
The folding bars 10 and 11 have a large amplitude in the machine width direction even by the pressing force applied to 0 and 11, which affects the bending process of the cardboard sheet S.

[0008] A preferable bending state of the folding process of the corrugated cardboard sheet in the folder gluer is preferably a shape as shown in FIG. 7 (a), and a glue margin formed at one end of the corrugated cardboard sheet S is attached to the other end. It is desirable that the gap t formed when the grooves are combined is equal to the interval of the groove cutting by the slotter 6. However, even if the folding bars 10, 11 are mechanically and controllably precisely positioned at the desired position to be produced,
As described above, since the folding bars 10 and 11 are long, generally, only a portion where the screw shafts 17 and 20 are screwed is positioned at an accurate position. A slight positioning error occurs near the middle of the folding bars 10 and 11 in the sheet flow direction. When the corrugated cardboard sheet S runs on the folding bars 10 and 11 and is bent, the corrugated cardboard sheet S Folded part of the ruled line part and folding bar 10,
A gap or the like is formed between the first and second substrates 11 so that correct bending cannot be performed. In addition, the folding bar 10 due to mechanical vibration or pressing force generated at the time of bending the corrugated cardboard sheet S,
When an amplitude of 11 occurs, the cardboard sheet S
Folded bar and folded bar of ruled line
There is a gap between 0 and 11 and correct bending cannot be performed.

When the corrugated cardboard sheet is bent in such a state, the corrugated cardboard sheet is bent into a shape having gaps t1 and tα as shown in FIGS. 7 (b) and 7 (c). In addition to the bending process such as a gap defect at the margin, the product becomes a defective product. In addition, the corrugated cardboard sheet S that passes when the amplitude of the folding bars 10 and 11 is the maximum and the corrugated cardboard sheet S that passes when the amplitude is the minimum is at the bending position. However, non-uniform bending is performed while producing the same order, and a corrugated cardboard sheet with irregular bending is produced. Therefore, at the time of bending the corrugated cardboard sheet in the folder gluer, the folded portions of the ruled line portions provided by the creasing device 11 are folded bars 10 and 11.
Need to be guided correctly. In order to suppress these vibrations, the folding bar itself, the stand for supporting the folding bar, and the like have been ruggedly configured, but the manufacturing cost of the folder gluer has increased.

[0010]

An object of the present invention is to provide a cardboard sheet which is folded at a regular position so that a folding bar can correctly guide a bent portion of a ruled line portion formed by a creaser when the cardboard sheet is bent by a folder gluer. It is an object of the present invention to provide a folder gluer provided with a device for positioning the folding bar and fixing it so as to suppress vibration and amplitude of the machine.

[0011]

Means to Solve the Problems To overcome the above problems,
In order to suitably achieve the intended purpose, the present invention provides a folding bar mounted on a folding frame,
A folder gluer comprising a moving positioning device for positioning the folding bar by moving the folding bar in the machine width direction. In a folder gluer of a cardboard box making machine for performing a bending process while a corrugated cardboard sheet passes, the folding bar is moved to a desired position. And a positioning and fixing device for positioning the folding bar substantially at the center of the sheet flow direction of the folding bar at a desired position and fixing at that position is provided substantially at the center of the folding bar at the direction of cardboard sheet flow. It is a positioning and fixing device of a folding bar in a folder gluer which is a feature.

[0012] Then, the folding bar is positioned at substantially the middle of the folding bar in the sheet flow direction at the same position as the position where the folding bar is positioned by the moving positioning device, and is fixed at that position. Device.

Further, the folding bar is positioned almost at the middle of the sheet flow direction at the same position as the position where the folding bar is positioned by the moving positioning device, and after fixing at that position, the desired number of corrugated cardboard sheets are passed. A folding bar is positioned and fixed in a folder gluer for re-positioning the folding bar at a substantially middle position in the sheet flow direction based on the result, and fixing the folder at that position.

A production management device for managing production information is provided in the folder gluer, and a position substantially in the middle of the folding bar in the sheet flow direction is positioned at a desired position by a command from the production management device, and fixed at that position. This is a device for positioning and fixing a folding bar in a folder gluer.

Further, the positioning and fixing device includes:
One of the folding bars is mounted substantially at the center of the corrugated sheet flow direction of the folding bar and provided so as to be movable in the machine width direction together with the folding bars, and the other of the positioning and fixing device is a floor surface or a folder gluer installed on the floor surface. It is provided so as to be movable in the machine width direction by a positioning drive device attached to the base or frame of the folding bar. This is a device for positioning and fixing a folding bar in a folder gluer to be fixed.

[0016]

According to the positioning and fixing device of the folding bar in the folder gluer according to the present invention, in order to perform the accurate bending process with the folder gluer, after the folding bar is moved to the desired position, the sheet flow of the folding bar is performed. The positioning device provided near the middle of the direction corrects the error associated with the movement of the folding bar, and the upstream and downstream sides of the folding bar and the middle are located at the same position or at a desired position according to the production of the corrugated cardboard sheet. Position. Then, the positioning device fixes the folding bar so that vibration and amplitude of the machine do not occur when the cardboard sheet is passed, suppresses the vibration and amplitude, and folds the ruled line part applied by the creasing part that is the bent part of the cardboard sheet. Make sure the bar guides correctly. And
As a result, the corrugated cardboard sheet folded by the folder gluer is accurately bent at the regular bent portion to be folded, and as a result, the glue margin formed at one end of the corrugated cardboard sheet is replaced with the regular glue at the other end. The gap t, which is bonded at the position, is the same as the interval grooved by the slotter 14, and also prevents the fishtail and the like, and the cardboard box is uniform and has high accuracy.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a folding bar positioning and fixing device in a folder gluer according to the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a view showing a folding bar positioning and fixing device according to the present invention.
Upper and lower folding bars 10 and 11 provided on the guide shaft 14 and the screw shaft 17 mounted on the frame 8 and the guide shaft 15 and the screw shaft 20 mounted on the second frame 9. Is not different from the conventional mechanism, and the detailed description is omitted here.

When the folding bars 10 and 11 are moved in the machine width direction by the screw shaft 17 mounted on the first frame 8 and the screw shaft 20 mounted on the second frame 9 as described above, the folding bars 10 and 11 are moved. , 11 follow the stand 12. Stand 12
Moves so that the guide roller 24 provided at the lower part of the stand 12 slides on the guide rail 23 provided on the floor. The stand 12 is provided with one A1 serving as a positioning and fixing device of the present invention, and the other A2 is provided on a guide rail 23. As shown in FIGS. 1 and 2, one of the positioning and fixing devices A1 has a female engaging member 26 attached to the tip of a cylinder rod of the air cylinder 25 by the expansion and contraction of an actuator 25 such as an air cylinder so as to reciprocate. It is attached to the stand 12 via the bracket 33. The other of the positioning and fixing devices A2 is a male engaging member 28 on the guide rail 23.
Is screwed with the screw shaft 29 and provided movably in the machine width direction by the rotation of the screw shaft 29. The positioning member 27 is a groove 32a of the slide rail 32.
It is slidably provided while being guided by. The screw shaft 2
9 has one end connected to a positioning drive device 31 via a joint 30, and the other end pivotally supported by a bearing member 50. Therefore, when the positioning drive device 31 operates, the screw shaft 29 rotates, and the positioning member 27 is moved into the groove 32a of the slide rail 32.
In the machine width direction.

Male engaging member 2 of positioning and fixing device A
The female engaging member 8 and the female engaging member 26 are configured to be integrated when they are engaged with each other. That is, as shown in FIG. 2, the male engagement member 28 has a convex shape toward the female engagement member 26, and the female engagement member 26 matches the convex shape of the male engagement member 28. It has a concave shape. The male engagement member 28 shown in FIG.
The convex and concave contact surfaces of the female and female engaging members 26 are tapered so that a strong engagement can be obtained in a tight contact state when engaged. Further, since the contact surface between the male engaging member 28 and the female engaging member 26 is a tapered surface as shown in FIG. 2, even if one of the positioning and fixing devices A1 on the stand side is displaced, the other. The positioning and fixing device A2 is positioned at an accurate position, so that one of the positioning and fixing devices A1
Female engaging member 26 is the other positioning and fixing device A2
When the male engaging member 28 extends toward the male engaging member 28, the tapered surfaces thereof come into contact with each other and the female engaging member 26 is fixed by the positioning drive device 31 and the screw shaft 29. Male engaging member 28 which is easy to engage because it is inserted along the tapered surface of
And the upper and lower folding bars 10 and 11 can be positioned at the position via the female engaging member 26 and the stand 12. The male shape and the female shape are not limited to those described above, and any shape may be used as long as the folding bars 10 and 11 can be integrated via the stand 12 when integrated with each other.

Next, the use of the preferred embodiment of the present invention will be described with reference to FIGS. First, in producing the corrugated cardboard sheet, the folding bars 10 and 11 of the folder gluer 7 are moved to a desired position to be produced. The movement of the folding bars 10, 11 activates the first moving device 19 and the second moving device 22, and rotates the first screw shaft 17 and the second screw shaft 20, as shown in FIG. The folding bars 10 and 11 slide on the first guide shaft 14 and the second guide shaft 15 as the screw shafts 17 and 20 rotate. When reaching the desired position to be positioned, the first and second moving devices 19 and 22 stop,
The movement of the folding bars 10 and 11 also stops. At this time, the stand 12 provided with one positioning and fixing device A1 also moves on the guide rail 23 along the folding bars 10 and 11. At the same time as the movement of the folding bars 10 and 11, the positioning member 27 of the other positioning and fixing device A2 provided on the guide rail 23 is also driven by the positioning drive device 31 to activate the screw shaft 29.
To the desired position to be produced by the rotation of. The amount of movement of the positioning member 27 is managed by a counter (not shown) provided in the positioning drive device 31, and the screw shaft 29
Move by the amount of rotation of.

Thus, each positioning and fixing device A completes the movement to the desired position. At the time of completion of each individual movement, the other positioning and fixing device A2 uses the counter (not shown) to accurately grasp the amount of movement of the positioning member 27 and position the other at the correct position. A1 is a position where the folding bars 10 and 11 are originally accurately positioned near the middle of the folding bars 10 and 11 in the sheet flow direction because the stand 12 is moved by being pulled by the folding bars 10 and 11 as described above. Slightly offset from the position. Then, one positioning and fixing device A1 provided on the stand 12 is extended toward the other positioning and fixing device A2 in order to position the folding bars 10 and 11 near the middle of the sheet flow direction at an accurate position. Let out. That is, the air cylinder 25 having the female engaging member 26 of one positioning and fixing device A1 provided on the stand 12 via the bracket 33 is operated, and the male engaging member of the other positioning and fixing device A2 is operated. 28 is extended toward the positioning member 27 having. At this time, as described above, since the contact surface between the male engagement member 28 and the female engagement member 26 shown in FIG. 2 is a tapered surface, one of the positioning and fixing devices A1 on the stand side is displaced. However, the other positioning and fixing device A2 is positioned at the correct position, and the female engaging member 26 of one positioning and fixing device A1 faces the male engaging member 28 of the other positioning and fixing device A2. When extended, the respective tapered surfaces come into contact with each other so that the female engaging member 26 is inserted along the tapered surface of the male engaging member 28 fixed by the positioning drive device 31 and the screw shaft 29. Advantageously, the upper and lower folding bars 10 and 11 can be positioned via the female engaging member 26 and the stand 12 at the position of the male engaging member 28 which is easily fitted and positioned at an accurate position. A. As a result, the female engaging member 26 enters and engages with the male engaging member 28, so that the stand 12 moves to the position where the other positioning and fixing device A2 is positioned, and the stand 12 is provided. Folding bar 1
Positioning is performed at an accurate position where the position near the center of the sheet flow direction 0, 11 should be positioned. That is,
Nearly the middle of the folding bars 10 and 11 in the sheet flow direction is positioned at the same position as the upstream side and the downstream side.

By continuing the engagement between the male engaging member 28 and the female engaging member 26, the folding bars 10 and 11 are connected to the guide rail 23 fixed to the floor surface via the stand 12. As a result, it is fixed on the floor surface. That is, the positions near the middle of the folding bars 10 and 11 in the sheet flow direction are maintained by continuing the engagement between the male engaging member 28 and the female engaging member 26, and the floor is maintained. The upper and lower folding bars 10 and 11 do not oscillate or shift in position due to machine vibration or the like even after the operation of the machine as a result of being fixed to the surface. Is not impaired.

The folding bar positioning and fixing device according to the present invention can correct and position and fix the folding bars 10 and 11 according to the production status of the corrugated cardboard sheet S to be processed. That is,
Since the corrugated cardboard sheet S is not always configured with the same paper quality, corrugated type, or sheet size, as described above, the corrugated cardboard sheet S does not necessarily have a position near the middle of the folding bar in the sheet flow direction.
It is not always possible to optimally bend the corrugated cardboard sheet S by positioning it at the same position as the position moved and positioned by the moving device of the folding bars 10 and 11. Therefore, it may be preferable to position and fix the folding bar near the middle of the sheet flow direction in accordance with the production of the corrugated cardboard sheet S. In order to do this, as described above, the folding bar 1 is moved near the middle of the folding bar in the sheet flow direction.
After positioning at the same position as the position moved by the moving devices 0 and 11, one or several corrugated cardboard sheets S are passed through and bent, and the corrugated cardboard sheet S is placed in an optimal state based on the result of the folding. The folding bar positioning and fixing device according to the present invention is moved to a position where the bending process is performed, and the folding bars 10 and 11 are positioned and fixed. That is, the air cylinder 2 is moved from the initially positioned and fixed state.
5 is operated to release the engagement between the male engaging member 28 and the female engaging member 26. Subsequently, one or more of the above-described corrugated cardboard sheets S are passed through the positioning member 27 by the positioning drive device 31 to be bent, and based on the result of the bending, the corrugated cardboard sheets S should be bent in an optimum state. Move to position. Then, the air cylinder 25 attached to the stand 12 is actuated to engage the male engaging member 28 and the female engaging member 26, thereby re-positioning the folding bar substantially in the middle of the sheet flow direction, and the position is determined. To fix it. By doing so, the bending process of the corrugated cardboard sheet S can always be performed in an optimum state, and the bending process failure in the folder gluer 7 can be further reduced. Since the movement of the positioning and fixing device A here is a movement accompanying the correction,
There is no significant movement with only a slight movement.

In the case where the configuration, the type of the corrugated cardboard, the size of the corrugated cardboard sheet S to be produced and the size of the corrugated cardboard sheet S are known in advance, or in the case of the corrugated cardboard sheet S produced once, the production of the corrugated cardboard sheet S depends on the production. Since the production management device knows the position where the folding bars 10 and 11 of the folder gluer 7 are positioned almost in the middle of the sheet flow direction, during the production of such a corrugated cardboard sheet S, the production management device performs the production at that time. The data is called, and based on the data, the folding bar 10,
It is preferable to position and fix substantially the middle of the sheet 11 in the sheet flow direction. By doing so, since the bending process can always be performed under the same conditions at the time of bending the corrugated cardboard sheet S under the same conditions, stable production can be performed.

Next, when the production of the corrugated cardboard sheet is completed and the folding bars 10, 11 of the folder gluer 7 are moved to the production position of the next order in order to produce the next order, the air cylinder 25 is operated. Then, the engagement between the female engaging member 26 and the male engaging member 28 is released. Subsequently, the first moving device 19 and the second moving device 22
Is started, the first screw shaft 17 and the second screw shaft 20 are rotated, and the folding bars 10 and 11 are slid. At the same time, the positioning driving device 31 also activates the other positioning member 27 of the positioning and fixing device provided on the guide rail 23, and moves the positioning member 27 to the next order production position. Then, the air cylinder 25 attached to the stand 12 is actuated to engage the male engaging member 28 and the female engaging member 26 to position the folding bar almost in the middle in the sheet flow direction. Fix it.

Next, an application example using the positioning and fixing device of the present invention will be described. FIG. 3 shows an embodiment in which the positioning and fixing device of the present invention is provided on the floor surface side of the stand 12 and on the side opposite to the floor surface. That is, in this embodiment, the upper folding bar 10 and the lower folding bar 11 are fixed by the respective positioning and fixing devices A and B. The positioning and fixing device A provided on the floor surface side is exactly the same as the device described above with reference to FIGS. Further, for convenience of explanation, the positioning and fixing device A provided on the floor surface side is referred to as a first positioning and fixing device, and the positioning and fixing device B provided on the opposite side of the floor surface is referred to as a second positioning and fixing device. explain. Subsequently, as shown in FIG. 3, the second positioning and fixing device B provided on the side opposite to the floor surface is provided with one positioning and fixing device B1 provided on the stand 12 side, and the second positioning and fixing device B is provided with an actuator 42 such as an air cylinder. By the action, the female engaging member 43 attached to the tip of the cylinder rod of the air cylinder 42 is attached to the stand 12 in a reciprocating manner. The other positioning and fixing device B2 is attached to a positioning driving device 48 fixed to a frame 49 via a joint 47 and the other is screwed to a rotatable screw shaft 46 attached to a bearing member 51. Then, a positioning member 45 having a male engaging member 44 is provided movably in the machine width direction by rotation of the screw shaft 46. Therefore, when the positioning drive device 48 operates, the screw shaft 46 rotates, and the positioning member 45 moves in the machine width direction.

The male engaging member 44 and the female engaging member 43 of the second positioning and fixing device B are formed so as to be integrated when engaged with each other. That is, as shown in FIG. 3, the male engaging member 44 has a convex shape toward the female engaging member 43, and the female engaging member 43 matches the convex shape of the male engaging member 44. It has a concave shape. The shape of the male engaging member 44 and the female engaging member 43 shown in FIG. 3 is convex and concave so that when engaged, a strong engagement is obtained in a tight contact state. The contact surface is a tapered surface. In addition, as shown in FIG. 3, the contact surface between the male engaging member 44 and the female engaging member 43 is a tapered surface,
Even if one positioning and fixing device B1 on the stand side is displaced, the other positioning and fixing device B2 is positioned at an accurate position.
Female engaging member 43 is the other positioning and fixing device B2
The male engaging member 44 is fixed to the female engaging member 43 by the positioning drive device 48 and the screw shaft 46 when the respective tapered surfaces come into contact with each other when the male engaging member 44 extends toward the male engaging member 44. Male engagement member 4 which is easily engaged because it is inserted along the tapered surface of
There is an advantage that the upper folding bar 10 can be positioned at the position 4 via the female engagement member 43 and the stand 12.

In the above embodiment, the female engaging member 43 attached to the stand 12 is engaged with the male engaging member 44 of the positioning member 45 which is positioned by the positioning driving device 48 by the expansion and contraction of the air cylinder 42. Although the positioning and fixing have been described, the positioning drive 4
An air cylinder is provided on a positioning member 45 positioned by the air cylinder 8, and the male engagement member 44 is attached to the stand 12 by expansion and contraction of the air cylinder.
For positioning and fixing. Further, the female engaging member 43 may be attached to the positioning member 45 positioned by the positioning driving device 48, and the male engaging member 44 may be attached to the stand 12.

Turning now to the use of an application of the present invention, FIG.
This will be described with reference to FIG. First, in producing the corrugated cardboard sheet, the folding bars 10,
11 is moved to the desired position to be produced. The movement of the folding bars 10, 11 activates the first moving device 19 and the second moving device 22, and rotates the first screw shaft 17 and the second screw shaft 20, as shown in FIG. Each screw shaft 1
Folding bar 10,1 with rotation of 7,20
1 slides on the first guide shaft 14 and the second guide shaft 15. Then, when the desired position to be positioned is reached, the first
Then, the second moving devices 19 and 22 stop, and the movement of the folding bars 10 and 11 also stops. At this time, the stand 12 provided with one of the first and second positioning and fixing devices A1 and B1 also moves on the guide rail 23 along the folding bars 10 and 11. The guide rail 2 is simultaneously moved with the movement of the folding bars 10 and 11.
3 the first other positioning and fixing device A provided on
The second positioning member 27 also moves to a desired position to be produced by the rotation of the screw shaft 29 by the activation of the positioning drive device 31. At the same time, the positioning member 45 of the second other positioning and fixing device B2 provided on the frame 49 is also activated by the positioning driving device 48 and is moved to a desired position to be produced by the rotation of the screw shaft 46. The amount of movement of the positioning member 27 of the first positioning and fixing device A2 and the amount of movement of the second positioning and fixing device B2 are determined by the positioning driving devices 31 and 4 respectively.
8 is managed by a counter (not shown) provided in
It moves by the amount of rotation of each screw shaft 29,46.

In this way, the positioning and fixing devices A and B complete the movement to the desired positions. At the end of this individual movement, each other positioning and fixing device A
2 and B2, each of the positioning and moving devices 31, 48 accurately grasps the amount of movement of each of the positioning members 27, 45 by a counter (not shown) and positions them at an accurate position.
Each of the positioning and fixing devices A1 and B1 is provided on the folding bars 10 and 11 as described above.
Since the folding bars 2 are moved in a pulled state, the folding bars 10 and 11 are slightly shifted from the position where the folding bars 10 and 11 are accurately positioned in the vicinity of substantially the middle of the sheet flow direction. Then, one of the positioning and fixing devices A1 and B1 provided on the stand 12 side is replaced with the other of the other positioning and fixing devices so as to position the folding bars 10 and 11 near the middle of the sheet flow direction at an accurate position. Extend toward the A2 and B2 sides. That is, the air cylinder 25 having the female engaging member 26 of the first one positioning and fixing device A1 provided on the stand 12 is operated, and the male engaging member 28 of the other positioning and fixing device A2 is moved. And the air cylinder 42 having the female engagement member 43 of the second one of the positioning and fixing devices B1 also provided on the stand 12 and operating the other positioning and fixing device B1. The fixing device B2 is extended toward the positioning member 45 having the male engagement member 44.

At this time, as described above, the contact surfaces between the male engaging members 28 and 44 and the female engaging members 26 and 43 shown in FIG. Even if one of the positioning and fixing devices A1 and B1 is displaced, the other positioning and fixing devices A2 and B2 are positioned at the correct positions, and the female mold of each one of the positioning and fixing devices A1 and B1 When the engaging members 26, 43 extend toward the other male engaging members 28, 44 of the respective other positioning and fixing devices A2, B2, each female engagement occurs when their respective tapered surfaces come into contact. The members 26 and 43 are respectively provided with the positioning driving devices 31 and 48 and the screw shafts 29 and 46.
Male engagement members 28, 44 secured by
Each male engaging member 28, which is easy to engage because it is inserted along the tapered surface of
At positions 44, the female engaging members 26 and 43 and the stand 12
And the upper and lower folding bars 10, 1
1 has the advantage that it can be positioned. As described above, the female engaging members 26 and 43 enter and engage with the male engaging members 28 and 44, so that the other positioning and fixing devices A2 and B2 of the stand 12 are positioned. The position is moved to the position where the folding bars 10 and 11 provided with the stand 12 are positioned at the exact position where they should be positioned almost in the middle of the sheet flow direction. That is, the upper and lower folding bars 1
Nos. 0 and 11 are positioned by the positioning and fixing devices A and B, respectively, in the vicinity of the middle in the sheet flow direction, respectively, at the same positions as the upstream side and the downstream side, respectively.

The male engaging members 28, 4
By continuing the engagement of the female engaging members 26 and 43 with the
The folding bars 10 and 11 are fixed to the floor surface and the frame 49 via the stand 12. That is, the male engaging members 28 and 44 are located near the middle of the folding bars 10 and 11 in the sheet flow direction.
And the female type engaging members 26 and 43 continue to be engaged to maintain the positioned position, and are fixed to the floor surface so that the upper and lower folding bars 10 and 11 does not oscillate or shift in position due to vibration of the machine or the like, so that the bending accuracy of the sheet during the sheet passing production is not impaired. Further, as described above, the bending process of the corrugated cardboard sheet S can be optimally performed by positioning the vicinity of the middle of the folding bar in the sheet flow direction at the same position as the position moved and positioned by the moving device of the folding bars 10 and 11. Therefore, the bending process is performed by passing one or several corrugated paperboard sheets S, and the positioning and fixing device is operated at a position where the corrugated paperboard sheets S are bent in an optimum state based on the bending result. It may be positioned and fixed. In addition, as described above, when the configuration of the corrugated cardboard sheet S to be produced, the type of corrugated cardboard, the size of the sheet, and the like are known in advance, or in the case of the corrugated cardboard sheet S that has been produced once, depending on the production of the corrugated cardboard sheet S, Since the production management device knows the position where the folding bars 10 and 11 of the folder gluer 7 have been positioned almost in the middle of the sheet flow direction, during the production of such a corrugated cardboard sheet S, the production management device determines the position. The production data may be called up, and the folding bars 10 and 11 may be positioned and fixed near the middle of the sheet flow direction based on the data.

[0033]

Next, another embodiment of the present invention will be described. FIG. 4 shows a positioning and fixing device C according to a first alternative embodiment. One of the positioning and fixing devices C1 provided on the stand 12 is a pair of rotating and rotating units 36 provided on the stand 12. Rotating members 37a, 37
b is provided. Locking members 38a, 38b are attached to the tips of the rotating members 37a, 37b, respectively. The other positioning and fixing device C2 includes locking members 38a and 38b attached to the one positioning and fixing device C1.
Positioning member 3 having an engagement portion 35 sandwiched by
4 is screwed with the screw shaft 29 and is provided movably in the machine width direction by rotation of the screw shaft 29. The positioning member 34 is slidably provided while being guided by the groove 32 a of the slide rail 32. The screw shaft 29 is connected to a positioning drive (not shown). Therefore, when the positioning drive device operates, the screw shaft 29 rotates, and the positioning member 34 moves in the groove 32a of the slide rail 32 in the machine width direction.

Locking member 38 of positioning and fixing device C
The engagement surfaces 35a and 38b and the engagement portion 35 have a shape in which the engagement surfaces come into close contact with each other when they are engaged. Also,
As shown in FIG.
Due to the configuration in which the 37b rotates, even if one positioning and fixing device C1 on the stand side is displaced, the other positioning and fixing device C2 is positioned at an accurate position, and the rotation of one positioning and fixing device C1 is performed. Moving members 37a, 37
When the rotating member b rotates and the engaging portion 35 of the other positioning and fixing device C2 comes into contact with the locking portions 37a and 37b, the one positioning and fixing device C1 side is rotated by the turning force of the rotating members 37a and 37b. It is forcibly moved to the position of the engaging portion 35 of the positioning member 34 fixed by the screw drive 29 and a positioning drive device (not shown). That is, the folding bars 10 and 11 are positioned at the exact positions to be produced by the rotation members 37a and 37b of one positioning and fixing device C1 engaging the other positioning and fixing device C2 via the stand 12. Will be.

By continuing the engagement of the positioning and fixing device C, the folding bars 10, 11
Is fixed to the floor surface via the stand 12. Also, even after the operation of the machine, the upper and lower folding bars 10 and 11 do not move or shift due to vibration of the machine or the like, so that the folding accuracy of the sheet during the sheet passing production is not impaired.

FIG. 5 shows a positioning and fixing device D according to a second alternative embodiment. In the folding bar positioning and fixing device D, a servomotor 39 is provided on the stand 12 via brackets 40a and 40b.
The servo motor 39 is provided with a gear box 41 having a not-shown bevel gear mechanism and the like, and a fixed screw shaft 53 fixed to a frame or floor (not shown) is fitted into the gear box 41. The servo motor 39 provided on the stand 12
The first moving device 19 and the second moving device 22 that move the first and second moving devices 0 and 11 are controlled in synchronization with each other, and the first moving device 19 and the second moving device 22 rotate the respective screw shafts 17 and 20 so that the folding bars 10 and 11 are moved. The servomotor 39 is actuated by the amount to move. Since the fixing screw shaft 53 is fixed to the frame or floor so that it cannot rotate,
When the servo motor 39 is operated, a bevel gear (not shown) in a gear box 41 connected to the servo motor 39 rotates, and a gear box 41 having a bevel gear (not shown) screwed to a fixed screw shaft 53 moves on a fixed screw shaft 53 on a screw shaft. Move in the direction. Therefore, the folding bars 10 and 11 are connected to the screw shaft 5 via the stand 12 having the servomotor 39 to which the gear box 41 is attached.
3 moves in the screw axis direction. That is, the folding bars 10 and 11 move in the machine width direction. Then, the servo motor 39 moves the folding bars 10 and 11 as described above.
9 and the second moving device 22 are controlled synchronously, so that the vicinity of the center of the folding bars 10, 11 provided with the positioning and fixing device D is moved to the same position by moving the same amount as the upstream and downstream sides. It was done. Also, since the stand 12 is engaged with the floor surface by a gear box 41 having a bevel gear mechanism (not shown), almost the middle of the folding bars 10 and 11 on which the stand 12 is provided in the sheet flow direction is fixed to the floor surface. This does not mean that the position is shifted by the vibration of the machine or the like, and the bending accuracy of the cardboard sheet is not impaired.

Also, in the positioning and fixing apparatus according to the other embodiment described with reference to FIGS. 4 and 5, one or several corrugated cardboard sheets S as described above are passed through, and the bending is performed. The corrugated cardboard sheet S may be positioned and fixed by operating a positioning and fixing device at a position where bending is performed in an optimum state. Further, in the case where the configuration of the corrugated cardboard sheet S to be produced, the type of corrugated cardboard, the size of the corrugated sheet, etc. are known in advance, or in the case of the corrugated cardboard sheet S which has been produced once, the folder glue 7 according to the production of the corrugated cardboard sheet S is used. Since the production management device knows the position where the folding bars 10 and 11 are positioned almost in the middle of the sheet flow direction, the production data at that time is called from the production management device during the production of such a corrugated cardboard sheet S. And the folding bar 10, based on the data,
It is also possible to position and fix substantially the middle of the sheet 11 in the sheet flow direction.

The positioning and fixing device according to another embodiment described above with reference to FIGS. 4 and 5 is not shown, but positions each of the upper folding bar 10 and the lower folding bar 11 as in the embodiment described with reference to FIG. And may be configured to be fixed.

In the above description, the embodiment in which the positioning and fixing device is mainly provided on the floor surface side has been described. However, the positioning and fixing device of the present invention is not provided only on the floor surface side, but is provided on the opposite side of the floor surface. It may be provided only on the side. For example, in the case of a folder gluer that performs processing such that the corrugated cardboard sheet is bent to the opposite side to the floor surface, positioning accuracy and fixing of the upper folding bar 10 are often required. In order to position and fix the upper folding bar 1 in the manner shown in FIG.
Only the zeros may be provided with the positioning and fixing device of the present invention.

Further, one of the positioning and fixing devices of the present invention is mounted in a stand 12 provided near the middle of the folding bars 10 and 11 in the sheet flow direction, and the folding bar 1 is connected via the stand 12.
Although the positioning and fixing devices 0 and 11 are positioned and fixed, the positioning and fixing device of the present invention is not necessarily limited to the folder gluer performed via the stand 12, and is substantially at the middle of the folding bars 10 and 11 in the sheet flow direction. One positioning and fixing device may be attached in the vicinity to directly position and fix.

The folding bar positioning and fixing device according to the present invention may be provided on one of the pair of left and right folding bars, or may be provided on each of the pair of left and right folding bars.

Further, a plurality of folding bar positioning and fixing devices according to the present invention are arranged at desired intervals in the sheet flow direction near the middle of the folding bar in the sheet flow direction, and individually positioned and fixed. You may.

It goes without saying that the various positioning and fixing devices of the present invention described above can be applied to a single folder gluer to which the cardboard box making machine 2 is not connected.

[0044]

As described above, according to the folding bar positioning and fixing device of the present invention,
By providing a device for positioning the folding bar near the middle of the corrugated sheet flow direction of the folding bar, a device for positioning the middle of the folding bar near the middle of the corrugated sheet flow direction is provided, which has conventionally occurred when the folding bar is positioned at a desired position. No mechanical positioning error due to bending of the folding bar in the vicinity. By this, the vicinity of the middle of the folding bar will be mechanically positioned at a regular position in producing the corrugated cardboard sheet, and during production, when the corrugated cardboard sheet passes through the folding bar,
Since the folding bar guides along the creased ruled line, the bending process can be performed at the correct position to be bent.

Further, since the folding bar is fixed at the position determined by the apparatus of the present invention, mechanical vibrations generated during the paper passing operation of the corrugated cardboard sheet, and the corrugated cardboard sheet is not Amplitude due to fine vibration generated by contact with various parts of the machine and amplitude due to pressing force at the time of bending corrugated cardboard sheet are not generated, and folding bars can guide the corrugated cardboard sheet accurately and can be bent, resulting in poor bending processing Etc. are gone.

As described above, the folding accuracy of the folding process of the corrugated cardboard sheet with the folder gluer is improved, and the occurrence of a defective product due to a defective bending process is eliminated. Further, since the folding bar can be fixed, there is no need to make the folding bar itself and the stand for supporting the folding bar unnecessarily rugged, and an additional effect of reducing the manufacturing cost of the folder gluer is obtained.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a folding bar positioning and fixing device according to the present invention.

FIG. 2 is a diagram illustrating a folding bar positioning and fixing device.

FIG. 3 is a diagram showing an embodiment according to an application example using a positioning and fixing device in a folding bar.

FIG. 4 is a diagram showing another embodiment of the folding bar positioning and fixing device.

FIG. 5 shows a second alternative embodiment of the folding bar positioning and fixing device.

FIG. 6 is an operation diagram showing movement of a folding bar.

FIG. 7 is a diagram illustrating a state of a corrugated cardboard sheet bent by a folder gluer.

FIG. 8 is a diagram illustrating a configuration of a folder gurua.

FIG. 9 is a view showing a cardboard sheet box making machine.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Corrugated-sheet processing machine 2 Corrugated-board box making machine 7 Folder gluer 8 1st frame 9 2nd frame 10 Upper folding bar 11 Lower folding bar 12 Stand 25 Air cylinder 26 Female type engaging member 27 Positioning member 28 Male type engaging member 29 Screw shaft 31 Positioning drive A, B, C, D Positioning and fixing device S Corrugated cardboard sheet

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) B65H 45/12 B65H 45/12

Claims (12)

[Claims] 1. A folder gluer comprising a folding bar mounted on a folding frame and a moving positioning device for positioning the folding bar by moving the folding bar in a machine width direction, and performing a folding process while a corrugated cardboard sheet passes. In a folder gluer of a corrugated box making machine, a positioning and fixing device for positioning the folding bar at a desired position, positioning the middle of the folding bar in the sheet flow direction at a desired position, and fixing at the position. An apparatus for positioning and fixing a folding bar in a folder gluer, wherein the folding bar is provided substantially at the center of the direction of flow of the corrugated cardboard sheet. 2. The folder gluer according to claim 1, wherein the folding bar is positioned substantially at the center of the sheet flow direction at the same position as the position where the folding bar is positioned by the movable positioning device, and is fixed at that position. Bar positioning and fixing device. 3. The folding bar is positioned at approximately the middle of the sheet flow direction at the same position as the position where the folding bar is positioned by the moving positioning device, and after fixing at that position, passes the desired number of corrugated cardboard sheets. 3. The folding bar positioning and fixing device in a folder gluer according to claim 2, wherein the bending process is performed, and based on the result, the intermediate position of the folding bar in the sheet flow direction is again positioned and fixed at the position. 4. A production control device for controlling production information is provided in the folder gluer, and a substantially middle of the folding bar in the sheet flow direction is positioned at a desired position by a command from the production control device, and fixed at that position. The positioning and fixing device for a folding bar in a folder gluer according to claim 1. 5. The positioning and fixing device, one of which is mounted substantially at the middle of the folding bar in the direction of flow of the corrugated cardboard and is provided so as to be movable in the machine width direction together with the folding bar. Is provided so as to be movable in the machine width direction by a positioning drive device attached to a floor or a base or a frame of a folder gluer installed on the floor surface, and the folding is performed by engaging one and the other positioning and fixing devices. 5. The positioning and fixing device for a folding bar in a folder gluer according to claim 1, wherein the bar is positioned and fixed substantially in the middle of the corrugated sheet flow direction. 6. The positioning and fixing device according to claim 1, wherein one or the other of the engaging members extends and engages with the one or the other of the engaging members by means of a retractable actuator. The positioning and fixing device for a folding bar in a folder gluer according to claim 5, wherein the intermediate bar is positioned and fixed substantially. 7. The corrugated cardboard sheet flow direction of the folding bar, wherein one of the engaging members is rotationally engaged with one or the other engaging member by a rotating actuator. 6. The positioning and fixing device for a folding bar in a folder gluer according to claim 5, wherein the positioning and fixing are performed at substantially the middle of the folding bar. 8. The positioning and fixing device is a positioning drive device attached to a floor surface or a base or a frame of a folder gluer installed on the floor surface, and the positioning drive device is configured so that the folding bar has a sheet flow. 5. The folder according to claim 1, which is directly connected to substantially the middle of the folding bar, and directly drives and positions substantially the middle of the folding bar in the sheet flow direction, and is fixed at the positioning position. Positioning and fixing device for folding bar in Gurua. 9. The positioning of the folding bar in the folder gluer according to claim 1, wherein the positioning and fixing device of the folding bar is provided on one of the pair of left and right folding bars. And fixing devices. 10. The folding bar positioning and fixing device is provided on each of the pair of left and right folding bars.
A positioning and fixing device for a folding bar in the folder gluer according to the above. 11. The positioning and fixing device is provided on a folding bar on a side on which a corrugated cardboard sheet is bent.
11. The positioning and fixing device for a folding bar in a folder gluer according to claim 10. 12. The folder gluer according to claim 1, wherein the positioning and fixing device is provided on both of folding bars that indicate both sides of the corrugated cardboard sheet. Bar positioning and fixing device.