JP2013119145A - Gauging device for slitter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gauging device for a slitter capable of accurately performing positioning of a metal plate and enhancing safety and productivity in die changing operation.SOLUTION: The gauging device 1 is used for a slitter cutting a metal plate and includes an alignment member 2 provided on the upstream side of a cutter, abutting against at least one end of a middle-size plate blank 62 and performing alignment of the middle-size plate blank 62, a slide guide 3 reciprocally moving the alignment member 2 and a cam member 4 intermittently and reciprocally moving the alignment member 2 to make the alignment member 2 abut against the middle-size plate blank 62.

Description

  The present invention relates to a slitting gauging apparatus, and more particularly, to a slitting gauging apparatus that can accurately align a metal plate and can improve safety and productivity in a mold changing operation.

Conventionally, a three-piece can body has been manufactured by forming a rectangular blank into a cylindrical shape.
This blank is obtained by cutting a coated and printed metal plate (about 1 m square) (usually called a large plate) with a slitter. That is, in the slitter, the large plate is cut into the intermediate plate blank by the first slitter, and the intermediate plate blank is cut into the blank by the second slitter.

  And regarding such a slitter, patent document 1 is proposed, for example, and this patent document 1 has the 1st slitter which cut | disconnects a large board into a middle board blank, and the 2nd slitter which cuts a middle board blank into a blank. Each slitter has a conveying means, an alignment guide, a cutter, and the like.

JP-A 63-2606

However, the second slitter in the slitter of the above-mentioned patent document 1 is aligned in the longitudinal direction (gauging) of the intermediate plate blank by a pair of opposed guide rails, but the intermediate plate derived from the large plate When the dimension in the longitudinal direction of the blank has a large variation, the alignment accuracy may be lowered, and it has been desired to further improve the alignment accuracy.
Further, in the production of a three-piece can body that forms a rectangular blank into a cylindrical shape, it is desired to improve productivity, and the slitter accompanying the change in the diameter of the can body while maintaining safety. It was necessary to shorten the mold changing time of the slitter, and it was also desired to easily perform the slitter mold changing work.

  The present invention has been proposed in view of the above circumstances, and provides a slitting gauging device capable of accurately aligning metal plates and further improving safety and productivity in mold changing work. With the goal.

  In order to achieve the above object, the slitting gauging device of the present invention is used in a slitter for cutting a metal plate, and is a slitting gauging device installed on the upstream side of a cutter, abutting at least one end of the metal plate, An alignment member that aligns the metal plate, a slide guide that enables the alignment member to reciprocate, and a cam member that intermittently reciprocates the alignment member to contact the metal plate, And a cam disk provided with a cam, and a cam roll engaged with the cam.

  According to the slitting gauging apparatus of the present invention, the metal plate can be aligned with high accuracy, and the safety and productivity in the mold changing operation can be improved.

FIG. 1 is a schematic view for explaining a slitter in which a slitting gauging apparatus according to an embodiment of the present invention is installed. FIG. 2: has shown the schematic enlarged plan view for demonstrating the slitting gauging apparatus which concerns on embodiment of this invention. FIG. 3 shows an AA arrow view of FIG. 4A and 4B are schematic enlarged views of the main part for explaining the biasing means of the slitting gauging device according to the embodiment of the present invention. FIG. 4A is a plan view, and FIG. C arrow figure is shown. FIG. 5 shows a cross-sectional view taken along the line BB of FIG. FIG. 6 is a schematic view for explaining the operation of the slitting gauging apparatus according to the embodiment of the present invention. FIG. 7 is a schematic enlarged plan view for explaining an application example of the slitting gauging apparatus according to the embodiment of the present invention.

[Embodiment]
FIG. 1 is a schematic view for explaining a slitter in which a slitting gauging apparatus according to an embodiment of the present invention is installed.
2 shows a schematic enlarged plan view for explaining the slitting gauging apparatus according to the embodiment of the present invention, and FIG. 3 shows a view taken along the line AA of FIG. .
1 to 3, a slitting gauging device 1 (referred to as a gauging device 1 as appropriate) of the present embodiment includes an alignment member 2, a slide guide 3, a cam member 4, and a fixed-side alignment member 5. It is as a configuration provided. This gauging device 1 is used in the second slitter 12 that cuts the intermediate plate blank 62 as a metal plate, and is installed on the upstream side of the cutter 125.

The second slitter 12 is a part of the slitter 10 as shown in FIG. 1, that is, the slitter 10 cuts one large plate 61 into five middle plate blanks 62. The slitter 11 and the second slitter 12 that cuts one middle blank 62 into four blanks 63 are provided.
In the second slitter 12, a housing 120, a plate 121 on which the intermediate plate blank 62 is placed, and an attachment 123 are detachably arranged at a predetermined interval, and the attachment 123 pushes the intermediate plate blank 62 from behind. The chain 122 which conveys the intermediate | middle plate blank 62 by the thing, the guide rail 124 which guides the intermediate | middle plate blank 62 conveyed, the cutter 125 which cut | disconnects the intermediate | middle plate blank 62, etc. are provided.
Furthermore, in the present embodiment, the blank 63 is a blank for a three-piece can body, and examples of the three-piece can include a welded can and an adhesive can.

(Alignment member)
As shown in FIGS. 2 and 3, the alignment member 2 has a plate shape elongated in the longitudinal direction of the intermediate plate blank 62, and has a fixing plate portion 201 for fixing the cam roll 42 at substantially the center, It has the front end side plate portion 202 protruding downward at the end portion on the blank 62 side. The alignment member 2 is provided on one end side (right side in the present embodiment) of the intermediate plate blank 62 so as to be reciprocally movable, and comes into contact with one end portion (right end) of the intermediate plate blank 62. The position in the longitudinal direction of the intermediate plate blank 62 is aligned.

Here, it is preferable that the distal end portion of the alignment member 2 is a rotatable rotary roll 21, and this rotary roll 21 is disposed below the distal end side plate portion 202 via a ball bearing (not shown). It is rotatably mounted (see FIGS. 2 and 3). If it does in this way, when it contacts with the edge part of the intermediate | middle board blank 62 currently conveyed, since the rotation roll 21 rotates, unnecessary friction and an impact can be suppressed and it can align smoothly.
Further, the rotary roll 21 has a V-groove-shaped recess formed in the middle step portion, and can contact the end portion in a state where the end portion of the intermediate plate blank 62 is guided from the vertical direction. Can be improved.

  More preferably, the tip end portion of the alignment member 2 (in this embodiment, the rotating roll 21) is urged with a predetermined force in the direction of the intermediate plate blank 62. In the present embodiment, as shown in FIG. 4, the rotating roll 21 is biased by providing the biasing means 22. The urging means 22 includes a rotating bar 221 having a rotating roll 21 pivotally supported at one end thereof, a shaft that pivotally supports the other end of the rotating bar 221 and is screwed to the distal end side plate portion 202. A supporting member 222 and a compression spring 223 that urges the rotating bar 221 toward the intermediate plate blank 62 with a predetermined force are provided. Here, the predetermined force is a force capable of moving the intermediate plate blank 62 for alignment, and is a force that does not deflect the intermediate plate blank 62. If it does in this way, the middle board blank 62 can be aligned smoothly, preventing the malfunction that the middle board blank 62 will be bent.

(Slide guide)
The slide guide 3 includes a rail 301 and a block 302 that reciprocates the rail 301. The rail 301 is screwed to a base 31 fixed to the casing 120 of the second slitter 12, and is an alignment member. 2 is screwed to the block 302. Thereby, the alignment member 2 can reciprocate along the longitudinal direction of the intermediate plate blank 62.
The base 31 has a substantially rectangular shape, is formed with an oval opening 311 through which the fixing shaft 421 of the cam roll 42 is inserted, and a convex portion for locking the tension spring 423 at the right end. have.

(Cam member)
FIG. 5 shows a cross-sectional view taken along the line BB of FIG.
2 to 5, the cam member 4 has a cam disk 41 provided with cams 412, 413, and 414, and a cam roll 42 that engages with the cams 412, 413, and 414, and intermittently moves the alignment member 2. Thus, the rotary roll 21 is brought into contact with the intermediate plate blank 62.
The cam disk 41 has a disk main body 411 fixed to the right end of the rotating shaft, and a gear is fixed to the left end of the rotating shaft. The rotating shaft is synchronized with the chain 122. Rotate.

As shown in FIG. 1, the cam 413 is used when the large plate 61 is cut into five middle plate blanks 62 and aligned with the five middle plate blanks 62. Although not shown, the cam 412 is used when the large plate 61 is cut into six middle plate blanks 62 and aligned with the six middle plate blanks 62. Although not shown, it is used when the large plate 61 is cut into four middle plate blanks 62 and aligned with the four middle plate blanks 62.
First, the cam 413 will be described.

The cams 413 are arranged at a plurality of locations on the disk main body 411 so as to correspond to the conveyance timing of the five intermediate plate blanks 62. That is, the cam 413 corresponds to a predetermined timing of the disc main body 411 so as to correspond to the conveyance timing of the intermediate plate blank 62 which is conveyed with a predetermined gap (gap corresponding to the five intermediate plate blanks 62) by the chain 122. They are arranged at equal intervals at five positions on the circumference having a radius (r 5 _(see FIG. 5)). Thereby, when the intermediate plate blank 62 passes between the alignment member 2 and the fixed-side alignment member 5, the alignment member 2 moves to the side (left side) of the intermediate plate blank 62, and the rotary roll 21 is in the middle. The abutting with the right end portion of the plate blank 62 enables the alignment of the middle plate blank 62 in the longitudinal direction. Moreover, immediately after the front end (end part on the conveyance direction side) of the intermediate plate blank 62 is bitten by the cutter 125, the alignment member 2 moves to the opposite side (right side) of the intermediate plate blank 62, and the rotary roll 21 is moved. The middle plate blank 62 is separated from the right end portion.

  Here, in the slitter 10 in the manufacturing process of the three-piece can, the first slitter 11 normally cuts the large plate 61 according to the can body circumferential length, and the second slitter 12 according to the can height. The intermediate plate blank 62 is cut. In order to change the mold when producing can bodies having different can body circumference lengths (can body diameters), the cams 412 and 414 preferably correspond to the intermediate plate blanks 62 having different conveyance timings. The cam rolls 42 (shown in phantom lines in FIGS. 3 and 5) that are concentrically arranged and engage with the cams 412 and 414 are preferably attached in an exchangeable manner.

In other words, the cam 412 has a predetermined gap of the disc main body 411 so as to correspond to the six intermediate plate blanks 62 conveyed by the chain 122 with a predetermined gap (a gap corresponding to the six intermediate plate blanks 62). They are arranged at equal intervals at six locations on the circumference having a radius (r ₆ (see FIG. 5)). In addition, the cam 414 has a predetermined gap of the disc body 411 so as to correspond to the four intermediate plate blanks 62 conveyed with a predetermined gap (a gap corresponding to the four intermediate plate blanks 62) by the chain 122. They are arranged at equal intervals at four locations on the circumference having a radius (r ₄ (see FIG. 5)).
In this way, when changing the mold, for example, instead of removing the cam disk 41 provided with only the cam 413 and attaching the cam disk 41 provided with only the cam 412, the cam roll 42 engaged with the cam 413. And the cam roll 42 that engages with the cam 412 is attached. Therefore, since it is not necessary to perform the work of detaching the heavy cam disk 41, the mold changing work can be easily performed, the work safety can be improved, and the work time can be shortened. Can be planned.

The cam roll 42 has a roll 422 that contacts the cam 413, and a fixing shaft 421 that is rotatably attached to the lower end portion and has an internal thread cut at the upper end portion. The cam roll 42 is screwed onto the fixing plate 201 of the alignment member 2 with the fixing shaft 421 penetrating into the opening 311 of the base 31, and is biased in the right direction by the tension spring 423. Yes.
In addition, the gauging device 1 according to the present embodiment includes the cam roll 42 that comes into contact with the cam 413, the length of the fixing shaft 421, and the cam roll 42 that comes into contact with the cam 412. The length 421 is long, and the roll 422 has a cam roll 42 that comes into contact with the cam 414, and the cam roll 42 corresponding to the number of intermediate plate blanks 62 is used when changing the mold, which will be described later.

(Fixed side alignment member)
As shown in FIGS. 2 and 3, the fixed side alignment member 5 has a rectangular plate shape, and has a front end side plate portion 501 protruding downward at an end portion on the intermediate plate blank 62 side. This fixed-side alignment member 5 is screwed to the base 52 fixed to the casing 120 of the second slitter 12 on the other end side (the left side in the present embodiment) of the intermediate plate blank 62. And is in contact with the other end portion (left end portion) of the intermediate plate blank 62 to align the position of the intermediate plate blank 62 in the longitudinal direction.
Moreover, the front-end | tip part of the fixed side alignment member 5 is good to be the rotatable rotation roll 51, and this rotation roll 51 is rotatably attached to the front-end | tip side plate part 501 via a ball bearing (not shown). It has been. If it does in this way, when it contacts the edge part of the intermediate | middle board blank 62 currently conveyed, since the rotation roll 51 rotates, an unnecessary friction and impact can be suppressed and positioning can be performed smoothly.
Further, the rotary roll 51 has a V-groove-shaped recess formed in the middle step portion, and can contact the end portion in a state where the end portion of the intermediate plate blank 62 is guided from the vertical direction. Can be improved.
In addition, the shape etc. of the alignment member 2, the slide guide 3, and the fixed side alignment member 5 are not limited to said shape, but are an example.

Next, the operation and the like of the gauging device 1 configured as described above will be described.
First, in the second slitter 12, the five intermediate plate blanks 62 cut by the first slitter 11 are placed on the four plates 121 arranged in parallel along the transport direction and attached to the chain 122. Each intermediate plate blank 62 is continuously conveyed in the direction of the cutter 125 by the attachment 123 (see FIG. 1). Here, since the surface of the plate 121 is processed smoothly by chrome plating or the like, the intermediate plate blank 62 is conveyed so as to slide on the plate 121, and when the alignment is performed, the plate 121 is smoothly moved on the plate 121. Since it can move, it can prevent problems such as scratches.
In the gauging device 1, the cam disk 41 rotates in synchronization with the chain 122, and the alignment member 2 reciprocates in accordance with the rotation angle of the cam disk 41 as shown in FIG. doing. The alignment member 2 is positioned on the right side by the cam member 4 until the intermediate plate blank 62 enters between the alignment member 2 and the fixed-side alignment member 5 (in FIG. 6A). Corresponds to the bottom dead center.) Thereby, for example, even when the intermediate plate blank 62 is conveyed obliquely and is displaced to the right side, the stroke of the reciprocating movement of the alignment member 2 is longer than the distance of the displacement. The blank 62 can smoothly enter between the alignment member 2 and the fixed-side alignment member 5.

Next, when the intermediate plate blank 62 passes between the alignment member 2 and the fixed side alignment member 5, the alignment member 2 is moved to the side (left side) of the intermediate plate blank 62 by the cam member 4 ( In FIG. 6A, this corresponds to the top dead center.) The rotary roll 21 comes into contact with the right end portion of the intermediate plate blank 62 and aligns the intermediate plate blank 62 in the longitudinal direction. That is, the intermediate blank 62 can smoothly enter between the alignment member 2 and the fixed-side alignment member 5 while the alignment member 2 is positioned on the right side, and then moves to the left side after entering. It is pushed by the rotating roll 21 and moves to the left until it comes into contact with the rotating roll 51, and alignment is performed with high accuracy. At this time, the rotary roll 21 and the rotary roll 51 are rotatable, and further, since the rotary roll 21 is biased with an appropriate force toward the intermediate plate blank 62 side, the intermediate plate blank 62 is bent. You can avoid problems.
Moreover, since the parallelism with respect to the cutter 125 is also corrected by having the left end contact with the rotary roll 51 and the right end contact with the rotary roll 21, the intermediate plate blank 62 is cut obliquely. Such problems can be effectively prevented.

  Subsequently, the alignment member 2 moves to the opposite side (right side) of the intermediate plate blank 62 almost simultaneously with the end of the intermediate plate blank 62 (end on the conveyance direction side) being bitten by the cutter 125, and the rotary roll 21. Is separated from the right end of the intermediate plate blank 62. Thereby, the intermediate | middle board blank 62 is cut | disconnected by the cutter 125 to the four blanks 63, and the operation | movement mentioned above is repeated.

Next, the operation | movement in the mold change operation | work of the slitter 10 cut | disconnected to the blank 63 used for the can body which has a different can body diameter is demonstrated.
For example, in a mold change operation for shifting from a state in which alignment is performed on five intermediate plate blanks 62 to a state in which alignment is performed on six intermediate plate blanks 62, the operator has five sheets. The cam roll 42 is removed from the alignment member 2, and the six cam rolls 42 are attached to the alignment member 2. When the six cam rolls 42 are attached to the alignment member 2, they engage with the cam 412 and reciprocate between the bottom dead center and the top dead center as shown in FIG.
Further, in the mold change operation for shifting to a state in which the alignment is performed with respect to the four middle plate blanks 62, the operator similarly removes the cam rolls 42 for 6 sheets or 5 sheets from the alignment member 2, Four cam rolls 42 are attached to the alignment member 2. When the four cam rolls 42 are attached to the alignment member 2, they engage with the cam 414 and reciprocate between the bottom dead center and the top dead center as shown in FIG. 6C.

  That is, the operator only needs to replace the cam roll 42. For example, the operator removes the cam disk 41 provided with only the cam 413 and attaches the cam disk 41 provided with only the cam 412. The cam disk 41 need not be removed. More specifically, even a skilled worker required several tens of hours to attach and detach the heavy cam disk 41. However, according to the gauging device 1, it takes several minutes. Remodeling work can be performed, work safety can be improved, and work time can be greatly shortened.

  In the present embodiment, the speed when the alignment member 2 approaches the intermediate plate blank 62 is substantially the same as the speed when the alignment member 2 leaves, but the speed is not limited to this. In this case, the intermediate blank 62 can be positioned more smoothly.

  Moreover, in this embodiment, it is set as the structure which provided the alignment member 2 which reciprocates intermittently on the right side of the intermediate | middle board blank 62, and provided the fixed side alignment member 5 on the left side of the intermediate | middle board blank 62. It is not limited. For example, although not shown, a configuration in which an alignment member 2 that reciprocally moves intermittently instead of the fixed-side alignment member 5 may be provided on the left side of the intermediate plate blank 62. In this way, since the pair of opposing alignment members 2 are separated from the intermediate plate blank 62 bitten by the cutter 125 at substantially the same time, it is possible to eliminate the worry of adversely affecting the cutting of the cutter 125. Further, even when the metal plate to be cut is longer than the intermediate plate blank 62 shown in FIG. 1, accurate alignment can be performed in a short time.

Therefore, according to the gauging apparatus 1 of the present embodiment, the intermediate plate blank 62 can be aligned with high accuracy, and further, safety and productivity in the mold changing operation can be improved.
Moreover, this embodiment has various application examples.
Next, application examples of the present embodiment will be described with reference to the drawings.

<Application example of slitting gauging device>
FIG. 7 is a schematic enlarged plan view for explaining an application example of the slitting gauging apparatus according to the embodiment of the present invention.
In FIG. 7, the gauging device 1 a of the application example is provided in the first slitter 11 of FIG. 1 as compared to the gauging device 1 described above, and has a plurality of rotating rolls 21 and rotating rolls 51. Is different. The other configurations of this application example are almost the same as those of the gauging apparatus 1.
Therefore, in FIG. 7, the same components as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted.
The first slitter 11 includes a housing 110, a plate 111 on which the large plate 61 is placed, and an attachment 113 that are detachable at predetermined intervals, and the attachment 113 pushes the large plate 61 from behind. A chain 112 for conveying the large plate 61, a guide rail 114 for guiding the large plate 61 to be conveyed, a cutter 115 for cutting the large plate 61, a belt 116 for conveying the large plate 61 from a feeder (not shown), etc. have.

The alignment member 2a is wider than the alignment member 2 and has two rotating rolls 21 at the tip. Since the metal plate to be aligned is a large square plate 61, the cam disc 41a has one cam 415 attached to the disc body 411.
The fixed side alignment member 5a is wider than the fixed side alignment member 5, and has two rotary rolls 51 at the tip.
Here, in the alignment of the metal plate that is long in the transport direction like the large plate 61, a larger force is required than the alignment of the intermediate plate blank 62, and therefore the movement of the large plate 61 may be delayed. By providing a plurality of rotating rolls 21 and rotating rolls 51, the apparatus 1a can align the large plate 61 quickly without difficulty.
Other configurations and operations are almost the same as those of the gauging apparatus 1.

  As described above, the gauging apparatus 1a of this application example can accurately align the substantially square large plate 61 using the plurality of rotating rolls 21 and the rotating rolls 51.

The slitting gauging apparatus of the present invention has been described with reference to the preferred embodiments and the like. However, the slitter gauging apparatus according to the present invention is not limited to the above-described embodiments, and the scope of the present invention. It goes without saying that various modifications can be made.
For example, the gauging device 1 is provided with a plurality of cam rolls 42 and is configured to be replaced with the cam rolls 42 corresponding to the number of the intermediate plate blanks 62 at the time of mold change. However, the present invention is not limited to this. Although not shown, one cam roll 42 that can change the position of the roll 422 by a spacer or the like may be used.

1, 1a Gauging device 2, 2a Positioning member
3 Slide guide
4 Cam member
5, 5a Fixed side alignment member
10 Slitter 11 First slitter
12 Second slitter
21 Rotating roll
22 Energizing means 31 Base
41, 41a Cam disc
42 Cam Roll
51 Rotating roll 52 Base 61 Large plate 62 Middle plate blank 63 Blank 110, 120 Case 111, 121 Plate 112, 122 Chain 113, 123 Attachment 114, 124 Guide rail 115, 125 Cutter 116 Belt 201 Fixing plate portion 202, 501 Tip side plate 221 Rotating bar 222 Rotating bar 223 Compression spring 301 Rail 302 Block 311 Opening 411 Disc body 412 413 414 415 Cam 421 Fixing shaft 422 Roll

Claims (4)

A slitting gauging device that is used in a slitter that cuts a metal plate and is installed on the upstream side of a cutter,
An alignment member that contacts at least one end of the metal plate and aligns the metal plate;
A slide guide that allows the positioning member to reciprocate;
A cam member that intermittently reciprocates the alignment member and makes contact with the metal plate;
A slitting gauging device, wherein the cam member includes a cam disk provided with a cam and a cam roll engaged with the cam.   The slitting gauging device according to claim 1, wherein the cam is disposed at a plurality of positions of the cam disk so as to correspond to a conveyance timing of the metal plate.   3. The cam according to claim 1 or 2, wherein the cams are arranged concentrically so as to correspond to the metal plates having different conveyance timings, and the cam rolls engaged with the cams are attached to be exchangeable. The slitting gauging device.   The said alignment member is urged | biased by the direction of the said metal plate, and the front-end | tip part of the said alignment member is a roll which can rotate, The one of Claims 1 thru | or 3 characterized by the above-mentioned. The slitting gauging device described in 1.

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