JP2948629B2 - Device for extracting parts made of thin plates - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a shadow mask or the like used for a cathode ray tube of a color television formed on a thin plate such as a metal plate by a processing method such as chemical etching. The present invention relates to a device for extracting a component made of a thin plate for extracting a component from the thin plate.

[Prior Art] As shown in FIG. 5, a shadow mask 1 is generally formed on a relatively thin metal plate 2 and has a perforated portion 3 composed of a number of holes 3a, 3a,. And an outer peripheral portion 4 surrounding the periphery of the perforated portion 3. The shadow mask 1 is supported by a support 6 composed of a part of the metal plate 2 via an outer peripheral line 5 formed on the outer periphery of the outer peripheral portion 4. That is, as shown in FIG. 6, the outer peripheral line 5 has a penetrating portion 5a whose front and back are penetrated by etching, and a non-penetrating portion whose only one surface is etched as shown in FIG.
The shadow mask 1 is supported by the support 6 by the non-penetrating portions 5b. This prevents the shadow mask 1 from dropping off the support 6 during the etching process. Further, by alternately disposing the penetrating portions 5a and the non-penetrating portions 5b, the outer peripheral line 5
The shadow mask 1 can be easily removed along the line.

Shadow mask 1 commercialized after etching
Conventionally, when the support 6 is removed from the support 6, as shown in FIG. 8, the support 6 is obtained from the lead wire portion 5 c formed in the same manner as the outer circumference 5 from the outer circumference 5 toward the outside of the support 6. Is separated from the shadow mask 1,
The shadow mask 1 is removed from the support 6.

[Problems to be Solved by the Invention] However, since the shadow mask 1 is mass-produced, an operation of extracting the commercialized shadow mask 1 from the support 6 is performed on the mass-produced shadow mask 1. However, if all operations are performed manually as described above, an enormous human labor is required. Also,
If there is such a human operation step in the manufacturing process of the shadow mask, the step becomes a bottleneck in performing automatic production of the shadow mask.

The present invention has been made in view of such a problem, and an object of the present invention is to mechanically perform a work of extracting a part made of a thin plate such as a shadow mask, thereby eliminating human work and quickly. An object of the present invention is to provide a device for extracting a component made of a thin plate, which allows the component to be easily extracted from a support.

Another object of the present invention is to provide an apparatus for extracting a component made of a thin plate, which enables automatic production of a component made of a thin plate.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the invention according to claim 1 separates a component made of a thin plate whose outer periphery is supported by a support from the support and removes the component from the thin plate. The apparatus is characterized by comprising fixing means for sandwiching and fixing a plurality of thin plate parts, and vibrating means provided outside the fixing means and vibrating the support up and down.

Further, the invention according to claim 2 is characterized in that the shape of the holding portion of the part of the fixing means is substantially similar to the shape of the part.

Further, the invention according to claim 3 is characterized in that a predetermined shape of a component is formed on a thin plate by etching.

Further, the invention according to claim 4 is characterized in that the thin plate is a metal plate.

Further, the invention of claim 5 is characterized in that the component is a shadow mask.

Further, the invention according to claim 6 is characterized in that the fixing means for sandwiching and fixing the thin plate component portion is provided with a component extracting means for lifting the component separated from the support from the fixing means.

Further, the invention according to claim 7 is characterized in that a positioning means for positioning a plurality of thin plate component parts is provided.

[Action] In the component extracting apparatus of the present invention configured as described above, the connecting portion between the support and the component is broken by fatigue due to mechanical vibration, and the component is cut from the support.
Separated. Therefore, without depending on human labor,
The component can be quickly and easily removed from the support.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view schematically showing one embodiment of a shadow mask extracting device according to the present invention.

As shown in FIG. 1, a shadow mask extracting device 7 is provided.
Is a table 8 on which a plurality of metal plates 2 on which a shadow mask 1 connected to a support 6 is formed are placed, and the shadow mask 1 portion of the metal plate 2 is sandwiched between the table 8 and the table 8 Thus, a shadow mask fixing means comprising a press plate 9 for fixing the metal plate 2 on the table 8 and an air cylinder 10 for driving the press plate 9 up and down.
It has eleven.

Further, the shadow mask extracting device 7 includes at least four support vibrating means 12 and 12 (in the figure, at the outer periphery of the shadow mask fixing means 11 corresponding to the support 6 portion of the metal plate 2). (Only two locations are shown). The support vibrating means 12 is disposed so as to face up and down with the support 6 portion of the metal plate 2 as a boundary.
And a pair of air cylinders 14, 14 for vertically driving and vibrating the pair of vibrating pieces 13, 13, respectively. Mounting table 8 and holding plate 9 for shadow mask 1
Is a similar shape along the outer shape of the shadow mask 1,
Further, it is formed to have a size several mm smaller than the outer shape of the shadow mask 1 so as to press a portion slightly inside the outer periphery of the shadow mask 1 as shown in FIG.

Also, as shown in FIG. 2, the four pairs of vibrating pieces 13, 13,... Press four predetermined positions of the support 6 outside the shadow mask 1, respectively. Further, the driving of each air cylinder 14 is controlled so that all of the vibrating pieces 13, 13,... Operate synchronously in the same direction, and the amplitude of each air cylinder 14 is It is set to about 30mm.

Next, the operation of extracting the shadow mask 1 by the thus-configured shadow mask extraction device 7 of this embodiment will be described.

Forming a shadow mask connected to the support 6;
After placing a predetermined number of metal plates 2, such as 30, for example, on the table 8, the rod of the air cylinder 10
10a is extruded, and the portion of the shadow mask 1 of the metal plate 2 is sandwiched between the holding plate 9 and the table 8 and fixed.

Next, the rods 14a, 14a,... Of the four pairs of vibrating piece driving air cylinders 14, 14,.
.. Are supported on the metal plate 2 fixed on the table 8.
Contact the upper and lower surfaces of the part. Then each air cylinder
The four rods a of 14 are vertically extended and contracted while being synchronized, and the support 6 is vibrated vertically. The amplitude of the vibration applied to the support 6 at this time is set to about 30 mm, and the vibration frequency is set to about 40 times for about 30 seconds. Due to this vibration,
The connecting portion between the shadow mask 1 and the support 6 (the portion 5b etched on one side in FIG. 7) is fatigue-ruptured,
The support 6 and the shadow mask 1 are cut and separated. In this case, the mounting table 9 and the holding plate 9 are similar in shape to the shadow mask 1, so that the stress due to the vibration is effectively concentrated on the connecting portion between the shadow mask 1 and the support 6.

When the support 6 and the shadow mask 1 are separated, the vibration of the vibrating piece driving air cylinder 14 is stopped, and the rod 10a of the presser plate driving air cylinder 10 is pulled back to raise the presser plate 9. Release the clamping pressure of 1. Thus, the shadow mask 1 separated and independent from the support 6 is taken out from the table 8.

Thus, according to this embodiment, the vibration is applied to the portion of the support 6 of the metal plate 2 so that the support 6 and the shadow mask 1 are vibrated.
Since the connecting portion of the shadow mask 1 is cut by fatigue fracture, the support 6 and the shadow mask 1 can be mechanically separated. Therefore, it is unnecessary to manually separate the support 6 from the shadow mask 1 as in the related art, and the support 6 and the shadow mask 1 can be easily and quickly separated.

FIG. 3 is a sectional view similar to FIG. 1 schematically showing another embodiment of the present invention. The same components as those in the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In the embodiment described above, the shadow mask 1 is simply placed on the table 8, whereas as shown in FIG.
In this embodiment, a shadow mask take-out plate 15 and an air cylinder 16 for driving the take-out plate are built in substantially at the center of the shadow mask mounting table 8. With this configuration, the shadow mask 1 and the support 6 are separated, and the holding plate 9
Then, when the shadow mask 1 is taken out, the take-out plate 15 is raised by the take-out plate driving air cylinder 16 so that the shadow mask 1 separated from the support 6 is raised, and the shadow mask 1 is easily taken out. I am trying to become.

FIG. 4 is a diagram showing still another embodiment of the present invention.
The same components as those in the embodiment shown in FIG. 1 are omitted, and only different portions are shown.

In contrast to the embodiment shown in FIG. 1, in this embodiment, when a predetermined number of metal plate 2 portions of the shadow mask 1 are set on the mounting table 2 as shown in FIG.
Pin 17 and pin block for positioning
18 are provided.

In general, the formation position of the shadow mask 1 formed on each metal plate 2 is often different for each metal plate 2. When a plurality of portions of the shadow mask 1 of the metal plate 2 having different formation positions of the shadow mask 1 are overlapped on the table 8, if the shadow mask 1 is overlapped on the table 8 with one end of the metal plate 2 as a reference, the shadow mask is located at the same position. The disadvantage that the parts do not overlap occurs.

Therefore, in the present embodiment, the pin holes 19 are provided at the same position relative to the shadow mask 1 of the metal plate 2 and the pin blocks 18 are provided at the same position relative to the table 8. Then, the pin holes 19 of the metal plate 2 are aligned with the pin blocks 18, and the pins 17 penetrate these holes 19 and are inserted into the holes of the pin blocks 18, thereby positioning the plurality of shadow masks 1. I'm trying to do it. Accordingly, even when a plurality of metal plates 2 having different formation positions of the shadow mask 1 are stacked, the table 8 can be used.
The plurality of portions of the shadow mask 1 can be reliably and quickly placed at the same predetermined upper position.

The present invention is not limited to the above-described embodiment, and various design changes are possible.

For example, in each of the above-described embodiments, the case where the present invention is applied to formation of a shadow mask is described. However, the present invention is also applicable to a case where components other than the shadow mask are extracted from a thin metal plate. Can be. Further, the present invention can be applied to extraction of a part formed from a thin plate other than a metal plate.

[Effects of the Invention] As is clear from the above description, according to the metal sheet extracting device of the present invention, the operation of extracting a component such as a shadow mask made of a relatively thin plate is mechanized, so that it is quick and easy. Parts can be extracted. For this reason, it is not necessary to use a large number of human labors as in the related art, and it is possible to reduce the labor of the parts extraction work.

Also, since no manual operation is required for the work of extracting parts, automatic production of parts such as shadow masks can be realized.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing one embodiment of a device for extracting a component made of a thin plate according to the present invention, FIG. 2 is a diagram showing a pressing portion of a metal plate and a vibrating portion of the metal plate, and FIG. FIG. 4 is a sectional view showing another embodiment of the present invention, FIG. 5 is a plan view showing an example of a metal plate on which a shadow mask is formed, and FIG. VI-VI in FIG.
7 is a sectional view taken along the line VII-VII in FIG. 5, and FIG. 8 is a view for explaining a conventional shadow mask extracting operation. 1 ... shadow mask, 2 ... metal plate, 5 ... outer line,
6: Supporting pair, 7: Shadow mask removal device, 8
...... Mounting table for shadow mask of metal plate, 9 ...
… Presser plate, 10 …… Air cylinder for driving the presser plate, 11…
Shadow mask fixing means, 12 ... Support vibration means, 13 ...
... vibrating piece, 14 ... air cylinder for driving the vibrating piece, 15 ...
Shadow mask take-out plate, 16 ... Air cylinder for driving shadow mask take-out plate, 17 ... Positioning pin, 18 ...
... pin block, 19 ... pin hole

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) H01J 9/00-9/18 H01J 29/00-29/08 B26F 1/00-3/16

Claims (7)

(57) [Claims] 1. A device for separating a component made of a thin plate whose outer periphery is supported by a support and separating the component from the support and extracting the component from the thin plate, fixing means for sandwiching and fixing the component parts of the plurality of thin plates. A removing device for a component made of a thin plate, comprising: a vibrating means provided outside the fixing means and vibrating the support up and down. 2. A device for extracting a component made of a thin plate according to claim 1, wherein a shape of the component portion sandwiching portion of the fixing means is substantially similar to the component shape. 3. The apparatus according to claim 1, wherein a predetermined shape of the component is formed on the thin plate by etching. 4. The apparatus according to claim 1, wherein the thin plate is a metal plate. 5. The apparatus according to claim 1, wherein the component is a shadow mask. 6. A fixing means for sandwiching and fixing a part of a thin plate, wherein a part removing means for lifting a part separated from the support from the fixing means is provided. A device for extracting a part made of a thin plate according to claim 1. 7. The apparatus for removing a component made of a thin plate according to claim 1, further comprising positioning means for positioning a plurality of thin plate component parts.