JPH0744416Y2 - Can material cutting device for metal cans - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) This invention conveys one can material for forming a metal can and cuts the can material into a predetermined size in the carrier line. The present invention relates to a can material cutting device for metal cans.

(Prior Art) Conventionally, when a metal can is continuously manufactured, a can material (material)
To a single metal can and continuously obtain the can material of the required size for one metal can. There is. The cutting in the conveying line is to cut the can material (material) in the vertical and horizontal directions, and a can material for a plurality of metal cans is obtained from one can material (material). A slitter is exclusively used for this cutting, and the can material (raw material) is cut along the traveling direction on the conveying line.

(Problems to be Solved by the Invention) As described above, since the can material (material) is conventionally cut only by the slitter, the can material (material) is used as the can material for manufacturing the metal can. It is necessary to cut in the horizontal and vertical directions. Therefore, the traveling direction of the can material (raw material) must be changed, and there is a problem that the cutting device cannot be linearly configured.

(Means for Solving the Problem) Therefore, the present invention has a configuration of a linear cutting device by installing a slitter and a shear on the transfer line so that the can material (material) can be cut in the vertical and horizontal directions. It was possible.

That is, this invention is a line (1) for conveying a can material to one sheet.
A slitter (9) for cutting the side edge of the can material (3) is installed at the same time, and a shear (10) for dividing the can material (3) is installed across the line (1). A front end stopper (29) for controlling the front end position of the can material (3) and a rear end stopper (28) for restricting the rear end position of the can material (3) are installed in front of and behind the shear (10). The front end stopper (29) includes a trimming stopper (29a) and a cutting stopper (29) that can be projected and retracted into the line (1).
b) is provided with the stopper for trimming (29a) on the shear (10) side and is biased toward the shear (10) side, and the rear end stopper (28) is connected to the line (1). Plural rear end stoppers (28a, 28b, ...) that can be projected and retracted are installed at intervals equal to the length of the can material (3) to be cut, and each stopper (28a, 28b, ... 29a, 29b) is On the other hand, the can material cutting device for metal cans is provided with a projecting and retracting mechanism that is synchronized with the transportation of the can material (3).

The order of installing the slitter and the shear may be either first, but it is natural that the side edge of the can material is first cut and removed, and then the can material is divided by the shear, with the slitter first. Ah

A guide device for positioning the side edge of the can material is preferably attached to the starting end side of the line in which the slitter is installed.

Further, at the start end side of the line, a plurality of can material loading carts (usually two) and a feeding device movably installed in a direction perpendicular to the line are arranged to feed the can material. It is desirable for improving efficiency.

(Operation) According to the can material cutting device for metal cans of the present invention, the can material can be cut lengthwise and widthwise without changing the carrying direction by the carrying line. In addition, stoppers for controlling the front and rear positions of the can material are provided in the line so that they can be projected and retracted across the shear, and the projecting and retracting mechanism controls the can material so that the can material of the required size can be obtained continuously. it can.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, 1 is a can material conveying line, and a can material feeding device 2 is installed on the starting end side (right side in the drawings). The feeding device 2 includes two carriages 4 and 4 on which can materials 3 and 3 can be stacked, and the carriage 4 is located at the center.
The upper can material 3 is taken out one by one through the vacuum chuck 5 and supplied onto the transfer line 1. When two or more can materials 3 are taken out when the cans 3 are taken out by the vacuum chuck 5, they can be detected and removed to the removing device 6 side. Further, the carriage 4 is provided with detectors 7, 7 so that the moving position can be electrically detected.

The conveying line 1 is adapted to continuously convey the can material 3 supplied from the feeding device 2 through the chain 8 with the claws to the length of the can material 3 in the traveling direction. Along the feeding device 2 side, slitter 9, shear
10 and corner cutting device 11 are installed in sequence.

The slitter 9 is constructed by fixing cutting wheels 14 and 15 to one side of rotating shafts 12 and 13 which are installed at right angles to the traveling direction of the transport line 1. A guide device 16 for positioning the side edge of the can material 3 is installed on the starting end side of the slitter 9. The guide device 16 includes a ruler board 18 in which a large number of free rollers 17 and 17 are installed in a straight line, and a free roller 19 is provided at the end of an arm 20, and the arm 20 is biased by a spring toward the arrow 21 side.
22 and the ruler board 18 and the urging board 22 are installed to face each other.

Control boards 23, 23 are installed along the both sides of the transfer line 1 so as to face each other on the further start side of the guide device 16.

The shear 10 is constructed by installing the upper cutting blade 24 and the lower cutting blade 25 so as to cross the transport line 1 in a state of being opposed to each other, and the upper cutting blade 24 moves up and down via guide members 26, 26. It is like this.

A stopper device 27 for controlling the positions of the front end and the rear end of the can material 3 is installed on the transfer line 1 on which the shear 10 is installed so as to straddle the shear 10. This stopper device
As shown in FIG. 3, 27 is a rear end stopper 28a, 28b, which is installed at the start end side of the shear 10 so as to project and retract on the conveying surface.
28c and a front end stopper 29 projecting and retracting on the conveying surface at the end side of the shear 10. The rear end stopper 28
a, 28b, and 28c are controlled by the timing cams 30 and 30 installed at the bottoms of the respective stoppers, so that the protrusions and sinks are controlled as shown in FIG.
As shown in (b) and (c), the protruding rear end stopper 28
a, 28b, 28c are changed sequentially. The front end stopper 29 is composed of two types of stoppers, a trimming stopper 29a and a cutting stopper 29b, and the trimming stopper 29a first protrudes from one can material 3.
Next, the cutting stopper 29b is controlled so as to project. The front end stopper 29 is urged by a spring toward the starting end of the transfer line 1.

Next, the corner cutting device 11 is a device similar to the shear 10 and is constituted by a receiving plate 31 and an elevating plate 32 installed to face each other, and the cut can material is placed on the receiving plate 31. Place and lift
When 32 is lowered, the four corners of the can material are cut, and notches can be formed at the four corners of the can material. Reception board 31
A front end stopper 33 that regulates the front end of the can material is installed therein.

At the rear end of the transport line 1 as described above,
A stacking device 34 for stacking the cut can materials and a feeding device 35 for feeding the stacked can materials one by one are connected in series.

Next, a state on the transfer line 1 of the above embodiment will be described.

The can material 3 supplied from the feeding device 2 is first controlled by the control panel 23,
After being guided on both side edges by 23 and made substantially parallel to the transport line 1, the chain 8 with pawls continuously transports it to the rear end direction of the line.

In addition, while one can material 3 is supplied from the carriage 2 placed at the center of the feeding device 2 to the carrier line 1, another can 2 is supplied with the can material to be processed next. It can be set and the carriages 2 and 2 can be alternately placed in the center to continue the work without interruption.

Next, the conveyed can material 3 is sent to the slitter 9 side while abutting one side edge against the ruler plate 18 in the guide device 16, and as a result, the side edge of the can material 3 is cut and removed by the slitter 9. It Since the lateral position of the can material 3 is always controlled by the guide device 16 and the cutting positions are kept constant by the ruler plate 18 and the cutting wheels 14 and 15 of the slitter 9, the can material 3 to be conveyed is always Can be cut with the same width.

Next, the can material 3 that has passed through the slitter 9 is conveyed to the shear 10, and first the front end thereof contacts the trimming stopper 29a of the stopper device 27 (FIG. 3 (a)). At this time, the trailing end stoppers 28a, 28b, 28c of the trailing end stopper 28a in the carrying line 1 are projected and the can material 3
Is pushed back to the side of the rear end stopper 28a protruding through the trimming stopper 29a, and the rear end is positioned. In this state, the upper cutting blade 24 of the shear 10 is lowered and the can material 3
The front edge of is trimmed. When trimming is finished,
The can material 3 is conveyed forward, and the front end of the can material 3 comes into contact with the cutting stopper 29b (FIG. 3 (b)). At this time, the rear end stoppers 28a, 28b, 28c are changed to a state in which the intermediate rear end stopper 28b is projected, and the rear end of the can material 3 pushed back by the cutting stopper 29b is positioned by the rear end stopper 28b. It The installation interval of the rear end stoppers 28a, 28b, 28c is set to a desired length in the transport direction of the can material 3, and the rear end stopper 28b positions the rear end to position the shear 1
By lowering the upper cutting blade 24 of 0, one can material (for example, the can body 3a) necessary for forming the metal can is cut. Next, when the remaining can material 3 is conveyed further forward and the front end comes into contact with the cutting stopper 29b (Fig. 3 (c)), the rear end stoppers 28a, 28b, 28c are the most on the line. The rear end stopper 28c on the terminating side is protruding, and the cutting stopper 2
The rear end of the can material 3 pushed back by 9b is positioned by the rear end stopper 28c. Here, when the upper cutting blade 24 of the shear 10 is lowered again, the can material 3 is divided into two, and two can body materials 3a,
3a is obtained.

Can body 3a, 3a that has been cut by the shear 10 as described above
Are sequentially conveyed to the corner cutting device 11. In the corner cutting device 11, four corners are cut while the front end of the can body 3a is positioned by the front end stopper 33.

The can body 3a obtained as described above is the stack device 34a.
While being stacked on the sheet, the sheet is sent to the next step via the one-sheet feeding device 35.

(Effects of the Invention) As described above, according to the present invention, since the slitter and the shear are installed in the conveying line, it is not necessary to change the conveying direction when cutting the can material, and the can material cutting device is straightened. There is an effect that can be configured.

In addition, a stopper for restricting the front and rear positions of the can material is installed in the line so that it can be projected and retracted across the shear.
Since the can material is projected and retracted by the projecting and retracting mechanism that is synchronized with the transportation of the can material, trimming cutting and cutting of a required size can be performed smoothly, and the necessary can material can be efficiently obtained.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment of the present invention, FIG. 2 is a schematic front view of the same embodiment, and FIGS. 3 (a), (b), and (c) are explanatory views of a shear installation portion of the same embodiment. 3 (a) is a diagram at the time of trimming, FIG. 3 (b) is an explanatory diagram at the time of primary cutting, and FIG. 3 (c) is an explanatory diagram at the time of secondary cutting. 1 ... Conveying line, 3 ... Can material 3a ... Can body material, 8 ... Claw chain 9 ... Slitting machine, 10 ... Shear 12,13 ... Rotating shaft, 14,15 ... Cutting wheel 16 ... Guidance device, 18 ... Rule 22 … Biasing board, 24… Upper cutting blade 25… Lower cutting blade, 27… Stopper devices 28a, 28b, 28c… Rear end stopper 29… Front end stopper

Claims (3)

[Scope of utility model registration request] 1. A line (1) for conveying a can material to a single sheet,
A slitter (9) for cutting the side edge of the can material (3) is installed, and a shear (10) for dividing the can material (3) is installed across the line (1). , A front end stopper (29) for restricting the front end position of the can material (3) and a rear end stopper (28) for restricting the rear end position of the can material (3) are provided in front of and behind the shear (10). The front end stopper (29) is provided with a trimming stopper (29a) and a cutting stopper (29b) capable of projecting and retracting into the line (1) with the trimming stopper (29a) on the shear (10) side, Moreover, it is installed so that it is biased toward the shear (10) side.
The rear end stopper (28) is provided with a plurality of rear end stoppers (28a, 28b, ...) capable of projecting and retracting in the line (1) at intervals equal to the length of the can material (3) to be cut. ,
29 a, 29 b, stoppers (28 a, 28 b, ... 29 a, 29 b) are provided with a projecting and retracting mechanism that is synchronized with the transport of the can material (3), the can material cutting device for metal cans 2. On the starting end side of the line where the slitter is installed,
The can material cutting device for metal cans according to claim 1, further comprising a guide device for positioning a side edge of the can material. 3. A can material for metal cans according to claim 1, wherein a plurality of can material loading carts and a feeding device installed so as to be movable in a direction perpendicular to the line are arranged on the starting end side of the line. Cutting device