JPS61229587A - Marking device - Google Patents

Abstract

PURPOSE:To enable a marking depth to be automatically adjusted so as to perform marking with the optimum depth even when the board thickness of a material to be marked is frequently changed, or is not constant, by providing a thickness sensor measuring the thickness of the material to be marked set on a bench, a driver driving an adjusting device adjusting a stroke length of a cylinder rod, and a controller driving the driver. CONSTITUTION:The thickness of a board to be marked 6, detected by a thickness sensor 7, is inputted to a microcomputer 13 through a comparator 11 after being converted into the voltage proportional to the displacement by a displacement-voltage controller 10. The microcomputer 13 calculates the optimum marking depth value with use of: the information of the board thickness, the condition of the valve, the conversion value by materials previously stored in the microcomputer. The calculated result is outputted in a motor controller 14 as a control signal. The motor controller 14 rotates a rotational driver 8 by the fixed number of rotation in the forward or reverse directions to move up and down a stopper ring 3 by the fixed amount, thus establishing the optimum marking depth against the board to be marked 6.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] □ The present invention relates to a stamping device used for stamping female characters, symbols, etc. on a flat plate or the like. □χ1
111 Technical background of E invention and its problems]
'Hiramon-11 □ 1 form (F) for metals, non-metals, or composite materials i, etc. If Itr≠Part 6 Identification of ii and a) References, etc.' * = = I is □ symbol i When stamping is performed, the image on the left is □ = ゛. Figure 2 is a partial sectional view of such a conventional stamping device. `` □ ゛□ Referring to Figure 1, ζ, this marking device M1 is assembled with a fluid cylinder device M2 and a cylinder ledger rod 2a'i of this fluid cylinder l11t2, as shown in FIG. 2. The stroke reduction bar ring 3 for adjusting stroke marks and the tip of the cylinder rod 2a of the fluid cylinder device WI2 are
From mW to the workbench 5, which has a high σt'i:vjl, to the stamp holder 4 and to the stamp holder,
The main '□ part: is: composed'.
゛-□Flow 1 The cylinder 2 has ports A and A for fluids such as oil or air at both ends of the cylinder, and allows the fluid to enter and exit the cylinder from both sides OA and A. , by alternately press-fitting;

The printer is configured to move an interrod 2a and a marking holder 4 up and down to mark a marking plate 6 on a workbench 5.

However, if the depth of engraving on the plate 6 to be engraved by such a stamping device W1 is too deep, the plate 6 to be engraved may be deformed or the appearance may be damaged, and in particular, a synthetic resin plate may undergo a whitening phenomenon or be damaged. The problem is that.

On the other hand, if it is too shallow, the engraving becomes unclear.

Therefore, when stamping the cylinder rod 2
It becomes necessary to adjust the cylinder bottom dead center by adjusting the stroke length of the cylinder.

Conventionally, such adjustment of the engraving depth was carried out by manually rotating the stopper ring 4 while operating the fluid cylinder device 2 and making a trial strike each time the thickness of the engraving plate 6 changed. There is a method of forming a mark @M on the stopper ring 3 as shown in Fig. 3 based on the predetermined marking depth for a plate with a thickness of , and adjusting the stroke length to an appropriate value using this scale M. It is taken.

However, in this method, the thickness of the plate changes frequently, especially when it is made of composite materials! When the board thickness varies even within the same lot, such as with plywood, it takes a very long time to determine the depth of marking, making it virtually difficult to adjust the depth of marking.

[Nogawa's purpose] The present invention has been devised to solve these problems.
The purpose is to provide a stamping device that can be stamped at a certain depth.

[Summary of the invention] That is, the marking device of the present invention includes a fluid cylinder device,
The stroke of the cylinder rod of this fluid cylinder device is
In a marking device that is equipped with an adjustment device for adjusting the cylinder rod, a marking holder attached to the tip of a cylinder rod of a fluid cylinder device, and a workbench placed opposite to the marking holder, A thickness sensor that measures the thickness of the placed object to be engraved and a cylindrical rod with one stroke of 0. +,.

a drive and a device for driving a φ adjustment device for adjusting the length;
The output signal of the thickness sensor is inputted to drive the drive device so that the stamping on the object to be stamped with 6 marks and 1 halter is carried out properly.
i I! By providing F, even if the thickness of the material to be engraved changes frequently or if there is a problem, it can be engraved with a temporary engraving depth! Wear.

It is possible to automatically adjust the engraving depth. .

[Examples of the invention].

Next, examples of the present invention will be described.　　　.

The first figure shows the marking device if1. of the present invention-1. It is a partial side view showing the structure of. Note that parts in FIG. 1 that are common to FIG. 2 are designated by the same reference numerals. ,.

As shown in the figure, 1. The marking device 1 of this embodiment is as follows.

A fluid cylinder device 12 and this cylinder I-, 2,
+7) A stopper ring for adjusting the stroke length of the cylinder rod 2a, 3, a fluid cylinder, a device,
2. It has the same structure as the conventional stamping machine (■) in that it includes a stamp holder 4 attached to the tip of the cylinder rod 2a and a workbench 5 placed opposite to the stamp holder 4. be.

However, in this embodiment, a contact type and non-contact type thickness sensor 7 for measuring the thickness of the object to be engraved 6 placed on the workbench 5, and a rotating shaft 8a are connected to a stopper via a connecting member 9. Connected to ring 3, stopper ring 3
Like a pulse motor or servo motor that makes one rotation at a given rotation angle! , one rotary drive unit, N10, and the output signal of the thickness sensor 7 are input, and the rotary drive unit 8 is driven so that the stamping by the flash stamp, holder, and 4 is performed to the appropriate depth υ! A control device 9 will be provided.

The control device 9 uses the displacement ゛ measured by the thickness sensor 7 as important information. Shore, Suya 5th bend - Drop Pressure Connext, -Ra, -10
, and 1. By inputting the output signal of the comparator 11 and the output signal of the pulp tIIJIIl@W112 to the comparator .-1.1 which compares the voltage with the reference voltage, the control signal of the tiger is obtained. Output microcomputer 13-, and 1,! 23. It is composed of a motor controller 14 which is controlled by a control signal outputted from a motor, a motor controller 13, and a motor controller 14 which controls the rotational speed of the rotary drive device @8.

The stamping device of the present invention configured as described above has a marking attached to the end of the cylinder rod 2a of the fluid cylinder device 12. As the holder 4 moves up and down, a resin mark is made. At this time, the thickness (displacement) of the plate 6 to be marked is first detected by the thickness sensor 7, and the displacement-voltage controller 10
The voltage is converted into a voltage proportional to the displacement, and is input to the microcomputer 13 via the comparator 11. The microcomputer 13 receives information on the board thickness, the state of the pulp,
A1i.

The optimum marking depth is calculated from the conversion value for each material stored in advance in the computer.

The calculation result is output to the motor controller 13 as an IIJIm signal, and the motor controller 1'3 rotates the rotary drive device 8 in the forward or reverse direction by a predetermined number of rotations based on this control signal, and rotates the stopper ring. 3 is moved up and down by a predetermined amount to set the optimum engraving depth for the engraving plate 6.

[Effect of R-light 1] As explained above, the stamp @ placement of the present invention automatically adjusts the optimum stamp depth even when the plate thickness changes frequently or varies, so stamping can be performed efficiently and the yield can be improved. and quality.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway ffi diagram for explaining the configuration of the stamping device of the present invention, FIG. 2 is a sectional view of a conventional stamping device, and FIG. 3 is a diagram for adjusting the marking depth of the conventional stamping device. It is a perspective view showing a stopper ring. １・・・・・・・・・・・・Engrave@place ２・・・・・・・・・・・・Cylinder device 2a...
...... Cylinder device 3... Stopper ring 4... Engraved holder 5... Workbench 6... Engraved plate 7... Thickness sensor, 8...
......Rotary drive device 9...
...Connecting member 10...Comparator 11...
・・・・・・・・・Pulp lll-equipment applicant
Toshiba Chemical Corporation Representative Patent Attorney Suyama
- Figure 1

Claims (2)

[Claims] (1) A fluid cylinder device, an adjusting device for adjusting the stroke length of the cylinder rod of the fluid cylinder device, a stamp holder attached to the tip of the cylinder rod of the fluid cylinder device, and a stamp holder placed opposite to the stamp holder. In the marking device, the marking device includes a workbench, a thickness sensor that measures the thickness of the object to be marked placed on the workbench, and a drive device that drives an adjustment device that adjusts the stroke length of the cylinder rod. and a control device that receives an output signal from the thickness sensor and drives the drive device to adjust the stroke length of the cylinder rod so that the marking holder properly stamps the object to be stamped. Characteristic marking device. (2) The marking device according to claim 1, wherein the thickness sensor is a contact type or a non-contact type thickness sensor.