JPH045322Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a marking device for marking a plate-like workpiece, and particularly to a marking device that facilitates the replacement of marking pieces attached to the marking roll. .

[Prior Art] Vehicle disc wheels are required to be printed with the manufacturing date, manufacturer, etc., and this printing is done on the disc wheel manufacturing line when the rim material is cut to size into a plate-like workpiece. After that, it is applied to the plate-shaped workpiece before being wound into a ring shape with a coiler.

Conventionally, marking devices used in wheel manufacturing lines pass the workpiece between marking rolls and receiving rolls that are placed above and below the workpiece conveyance path, and the marking piece attached to the marking roll This was done by pressing strongly against the workpiece and inscribing the print on the workpiece.

[Problems to be solved by the invention] In such a device, since the marking roll and its receiving roll are provided facing each other and fixed in position, the space around them is narrow and it is difficult to transfer the marking piece to the marking roll. It was extremely difficult to put on and take off. Marking pieces must be replaced every time the workpiece flowing through the disc wheel production line changes depending on the type of car or the date of manufacture, and this is done not infrequently. However, the difficulty in attaching and detaching due to space constraints has been a factor in reducing manufacturing efficiency.

An object of the present invention is to make it easier to attach and detach a marking piece to a marking roll in a marking device in terms of space, and to make replacing the marking piece easier.

[Means for Solving the Problems] The marking device of the present invention to achieve the above object has a marking roll and a receiving roll arranged on both sides of the conveyance path of the plate-shaped work, and a marking piece can be attached to and detached from the marking roll. The marking roll is mounted on the rotating shaft so as to be slidable in the longitudinal direction of the rotating shaft with respect to the rotating shaft, and the rotating shaft is supported by a fixed bearing on one side of the marking roll, and the marking roll is mounted on the other side of the marking roll. It is supported on the side by a coupling block that can slide integrally with the marking roll in the direction of the rotation axis, so that the sliding range of the marking roll extends between the position where the marking piece faces the receiving roll and the position where it is removed from the receiving roll. Consists of selected materials.

[Function] In such a marking device, when it becomes necessary to replace the marking piece, the marking roll is slid along the rotation axis together with the coupling block, and the marking piece is held in a position away from the receiving roll. Since there is no receiving roll near the marking piece at that position, it is easy to approach and the marking piece can be replaced in an open space. This makes replacing the marking piece considerably easier and reduces set-up time.

[Embodiments] Hereinafter, preferred embodiments of the marking device according to the present invention will be described with reference to the drawings.

1 to 3 show a marking device according to an embodiment of the present invention, and FIGS. 4 and 5 show a portion where a marking piece is attached to a marking roll.

In the figure, numeral 1 is a workpiece consisting of a plate-like workpiece such as a wheel rim for a disk wheel (not limited to a wheel rim if it is a plate-like workpiece), and is a workpiece to which printing must be applied. Work 1
A pair of rolls are provided above and below the conveyance path, one of which is a marking roll 2 and the other roll is a receiving roll 3 thereof. On the marking roll 2, a marking piece 4 for displaying the manufacturer and date of manufacture is mounted on the circumference of the roll 2 over an appropriate range of angles. As shown in FIG. 5, a plurality of marking pieces 4 are attached to the outer circumferential step of the marking roll 2 in the circumferential direction as shown in FIG.
This is done by attaching and fixing with bolts 6 through plate 5. Since the bolt 6 is fixed, the marking piece 4 can be attached to and detached from the marking roll 2 by removing it.

Feeding of the workpiece 1 between the marking roll 2 and the receiving roll 3 is carried out by a pair of pinch rolls 7, 7 disposed at the previous stage,
be forcibly sent. A stepped portion 8 is formed on the marking roll 2, and the tip of the workpiece 1 hits the stepped portion 8 to rotate the marking roll 2.
When the marking roll 2 rotates, the marking piece 4 hits the workpiece 1, presses the workpiece 1 strongly between it and the receiving roll 3, and imprints a printed pattern on the workpiece 1. When the workpiece 1 is marked and the space between the marking roll 2 and the receiving roll 3 becomes empty, the marking roll 2 is rotated in the opposite direction by a cylinder described later and returns to its original position, and the stepped part 8 is It is then set in a position facing the workpiece 1 that is sent in.

The marking roll 2 is supported by a rotating shaft 9 for rotating the marking roll 2. The marking roll 2 is restrained in the rotational direction by a key 10 on the rotating shaft 9, but is supported so as to be slidable in the axial direction. The rotating shaft 9 is connected to the cylinder 1 via a pinion 11 and a rack 12 attached to one end thereof.
It is connected to 3. 4th marking roll 2
The clockwise rotation in the figure is performed by the pushing force of the workpiece 1, while the counterclockwise rotation is performed by the cylinder 13 after the workpiece 1 passes between the marking roll 2 and the receiving roll 3. Rotating shaft 9, rack pinions 11, 12, cylinder 13
does not move in the left-right direction in Figure 1, but
Since the marking roll 2 can be moved in the axial direction along the rotating shaft 9, it can be moved in the left-right direction in FIG.

A cover 14 is attached to the marking roll 2 so as to cover the rotating shaft 9, and a handle 15 is fixed to the cover 14. When the handle 15 is pulled to the right in FIG. 1, the cover 14 and the marking roll 2 can be slid to the right with respect to the rotating shaft 9.
The range of the slide is from the position where the marking piece 4 prints on the workpiece 1 (position shown in Figure 1) to the position where the marking piece is removed from the receiving roll 3 (position A in Figure 1), and the reciprocating motion is performed between the positions I'm starting to be able to do it.

Since the printing position on the workpiece 1 varies depending on the type of the workpiece 1, the following printing position adjusting device is provided. A connecting block 16 is connected to the marking roll 2, and the connecting block 16 connects the threaded portion 17 of the rod 18 with a threaded portion 17.
are screwed together. The movement of the rod 18 in the left-right direction in FIG. 1 is restrained by a bearing 20 with which a cover 19 can be opened and closed. A handle attachment part 21a is formed at the other end of the rod 18, and by attaching the handle 21 thereto and rotating the rod 18, the coupling block 16 is slid onto the slide plate 22, and the coupling block 16 and the markings are removed. The marking position can be adjusted by adjusting the position of the roll 2 in the left-right direction. Therefore, the position of the marking roll 2 in the left and right direction is fixed by fixing the rod 18 by the bearing 20. Pull the handle 15 and move the marking roll 2 to the first
When moving the bearing 20 to the right in the figure, remove the openable/closable cover 19 of the bearing 20 and remove the bearing 20 and rod 1.
Free connection with 8. marking roll 2
When the handle 15 is pulled to move it to the right in FIG. 1, the marking roll 2, connecting block 16, and rod 18 move together to the right. For this reason,
The bearing 20 is open with the right step 23 missing.

As for other parts, as shown in Fig. 2,
Pinch rolls 7, 7 are provided to feed the workpiece 1 to a position in front of the marking roll 2 in the workpiece feeding direction, and between the pinch rolls 7, 7 and the marking roll 2, there are side rolls for correcting left and right deviations in feeding the workpiece 1. are provided on both sides in the width direction of the workpiece.

The operation of the above device will be explained. The workpiece 1 is forcibly fed by the pinch rolls 7, 7 and enters between the marking roll 2 and the receiving roll 3. The leading end of the workpiece 1 hits the stepped part and rotates the marking roll 2, and the marking piece 4 is pressed against the workpiece 1, and is strongly pressed between the marking piece 4 and the receiving roll 3 to place the workpiece 1 at a predetermined position. is printed. in this case,
Since the rotating shaft 9 is supported by the coupling block 16 and the fixed bearing 24 in the vicinity of the marking roll 2, the printing pressure will not be weakened due to bending and deformation of the rotating shaft 9 due to printing reaction force. . When the printing of the workpiece 1 is completed and the workpiece 3 passes between the marking roll 2 and the receiving roll 3, the rack pinion 11,
12, the marking roll 2 is returned to its original position.

When the type of work to be flown through the production line is changed, the marking piece 4 must be replaced accordingly. In that case, bearing 20
Rotate the cover 19 to open it, free the connection between the bearing 20 and the rod 18, and move the handle 15 to the first position.
Pull it to the right in the figure to pull out the marking roll 2 to a position where the marking piece 4 is removed from the receiving roll 3. In this case, the coupling block 16 is also slid, so that the sliding of the marking roll 2 is not restrained by the coupling block 16 and is pulled out to a location with a wide space. At the position of the open space, replace the marking piece 4 and attach the new marking piece 4 to the marking roll 2, and then push the handle 15 again to return the marking roll 2 to the position facing the receiving roll 3. , the cover 19 of the bearing 20 is tightened to restrict movement of the marking roll 2 in the left and right direction.

When adjusting the horizontal position of the marking piece 4 in a restrained state, attach the handle 21 to the tip of the rod 18, rotate the rod 18, move the coupling block 16, and move the marking roll 2 at the same time. This is done by

[Effects of the invention] According to the marking device of the invention, since the marking roll 2 can be pulled out in the left-right direction from the receiving roll 3 facing the connecting block 16, the marking piece 4 can be attached and removed from the marking roll 2 easily. This can be done in a wide open space without being restricted by the connecting block 16, and the marking piece 4 can be replaced easily.

[Brief explanation of drawings]

Fig. 1 is a sectional view of the marking device of the present invention, Fig. 2 is a side view of the marking device of Fig. 1, Fig. 3 is a plan view of the marking device of Fig. 1, and Fig. 4 is a side view of the marking roll. , FIG. 5 is a sectional view of the marking roll. 1...Work, 2...Marking roll, 3...
...Receiving roll, 4...Marking piece, 9...
Rotating shaft, 15...handle, 16...coupling block,
18...Rod, 19...Cover, 20...Bearing.

Claims (1)

[Scope of utility model registration request] A marking roll and a receiving roll are arranged across the conveyance path of the plate-shaped workpiece, a marking piece is removably attached to the marking roll, and the marking roll is slid around the rotating shaft in the longitudinal direction of the rotating shaft. the rotary shaft is supported on one side of the marking roll by a fixed bearing, and the other side of the marking roll is supported by a coupling block that is slidable integrally with the marking roll in the axial direction of the rotary shaft; A marking device characterized in that the sliding range of the marking roll is selected to extend between a position where the marking piece faces the receiving roll and a position where the marking piece is removed from the receiving roll.