CN1024864C

CN1024864C - Attaching-detaching device for shadow mask frame assembly of cathode ray tube

Info

Publication number: CN1024864C
Application number: CN90108721A
Authority: CN
Inventors: 梁在敏
Original assignee: Samsung Display Devices Co Ltd
Current assignee: Samsung SDI Co Ltd
Priority date: 1989-11-02
Filing date: 1990-10-30
Publication date: 1994-06-01
Anticipated expiration: 2005-10-30
Also published as: KR910007502B1; CN1051457A; KR910010591A

Abstract

A loading-unloading device of shadow mask frame component of cathode-ray tube is provided, which comprises an operation platform that the center is opened with a rectangular hole, a panel support device, a reference position setting device, a contact device, as well as the loading-unloading device; wherein the reference position setting device comprises: a fixed reference position setting device arranged on a fixed position; a movable reference position setting position passing through a movement device that can make axial movement, thereby setting the reference positions of two or various panels with different sizes, wherein the loading-unloading device comprises two or a plurality of loading-unloading appliances applied to the two or various panels with different sizes.

Description

Attaching-detaching device for shadow mask frame assembly of cathode ray tube

The present invention relates to a kind of attaching-detaching device of shadow mask-frame assembly of cathode ray tube, be particularly related to a kind of like this shadow mask-frame assembly of cathode ray tube, the improvement of this shadow mask-frame assembly is that it can be assembled on the panel or from panel in the mode of certain selection according to the size of panel and disassembles.

In manufacture process, according to condition of work, shadow mask-frame assembly is mounted on the panel or from panel and disassembles.A kind ofly be used for finishing the assembling of shadow mask-frame assembly and traditional attaching-detaching device of dismounting is illustrated in Fig. 1 and Fig. 2.

At one of central authorities' formation of workbench 1 and the measure-alike or bigger slightly rectangular opening 2 of panel P, a plurality of support components 3 are fixedly installed on the edge of rectangular opening 2, so that support component 3 is from following support panel P.

A series ofly be used for determining that the positioning elements 4 of the reference position (service position) of panel P are fixedly installed in a side and an end limit of rectangular opening 2, near a long edge joint that is useful on touch panel P another side and end limit touches device 5 and a bight contact device 6.

Below workbench, a rotating eccentricity wheel 8 that is driven by fluid-power motor 7 is installed with rectangular opening 2.Below the periphery in this hole, a series of L shaped attaching-detaching device 9a are installed, handler 9a matches with sliding seat 9 on being installed in fixed head 10 in order.

8 hinged cooperations were taken turns for rotating eccentricity in the inner of sliding seat 9 so that make sliding seat finish straight reciprocating motion with the rotation of rotating eccentricity wheel 8, simultaneously, but fixed head 10 assemble in a kind of mode of lifting/lowering, this lifting/lowering is realized by a kind of pneumatic cylinder.

The said this traditional attaching-detaching device in front is worked by following mode.

When front panel P was placed on the support component 3 at rectangular opening 2 each edge that are installed in workbench 1, contact device 5 and 6 was started, and makes panel P closely contact positioning element 4, thus with panel P basic fixed position in the middle position of rectangular opening 2.

Under this condition, as shown in Figure 2, the fixed head 10 that is positioned at rectangular opening 2 belows of workbench 1 is risen by a hydraulic cylinder (not shown), the L shaped attaching-detaching device 9a that is installed in the sliding seat 9 on the fixed head 10 enters between the stud pin SP and shadow mask-frame assembly FA hook spring HS of panel P inboard, so fluid-power motor is started.Like this, when rotating eccentricity wheel 8 was driven, sliding seat 9 straight lines that match with the elongated guide channel 8a of rotating eccentricity wheel 8 inwardly moved, and then, the termination of the L shaped attaching-detaching device 9a that matches with sliding seat 9 inwardly pushes the hook spring HS of shadow mask-frame assembly FA.Then, hook spring HS unloads down from the stud pin SP of panel P inboard, and therefore shadow mask-frame assembly FA can unload down from panel P.

On the other hand, for shadow mask-frame assembly being assembled on the panel P, can only adopt the program opposite with said procedure.

The attaching-detaching device of the shadow mask-frame assembly of this traditional cathode ray tube can not be applied to the cathode ray tube of different size, therefore, must adopt the attaching-detaching device of different size to adapt to the cathode ray tube of different size.During the change in size of perhaps each cathode ray tube, attaching-detaching device must be taken and is changed by apart the parts of different size, so just cause the complicated of equipment, and increase manpower and spend and invalid shut-down.

The present invention makes every effort to overcome the shortcoming of above-mentioned conventional apparatus.

Therefore, the purpose of this invention is to provide a kind of attaching-detaching device of shadow mask-frame assembly of cathode ray tube, this device can be installed to two or more shadow mask-frame assemblies on the panel and from panel with certain selection mode and disassemble.

When stating purpose in realization, the inventive system comprises: a workbench that is provided with a rectangular opening in the central; Set the reference position setting device of reference position for the long limit of the panel on the workbench and minor face; Be used for the bracing or strutting arrangement of panel support on rectangular opening; The contact device that is used to make the panel that supports by bracing or strutting arrangement and reference position setting device closely to contact; And an attaching-detaching device that is used for shadow mask-frame assembly is installed on the panel and unloads down from panel, wherein the reference position setting device comprises: a fixing reference position setting device that is positioned at a certain fixed position; With one can be by having telecontrol equipment at the movable reference position of axial motion setting device, therefore, can set the reference position of two or more different size panels, and attaching-detaching device wherein comprises that two covers or many covers are applicable to the loading-unloading apparatus of two or more different size panels.

Above-mentioned purpose of the present invention and other superiority will also become more clear with reference to the accompanying drawings by the detailed description to the preferred embodiment of the present invention, wherein:

Fig. 1 is the floor map of attaching-detaching device of traditional shadow mask-frame assembly of cathode ray tube;

Fig. 2 is the side sectional view of traditional attaching-detaching device shown in Figure 1;

Fig. 3 is the floor map of the attaching-detaching device of shadow mask-frame assembly of the present invention;

Fig. 4 is the side sectional view that the part of attaching-detaching device shown in Figure 3 is cut open, represents the course of work of this attaching-detaching device;

Fig. 5 A illustrates a kind of operating state of Fig. 3 device, and wherein a bigger panel (as 19 inches) in this device clamping;

Fig. 5 B illustrates the another kind of operating state of installing among Fig. 3, wherein less panel of this device clamping (as 14 inches).

As shown in Figure 3 and Figure 4, the attaching-detaching device according to CRT shadow mask of the present invention comprises: the panel P of two or more different sizes is placed reference position setting device on the workbench 11; Be used for panel P is supported in bracing or strutting arrangement on the rectangular opening 12 of workbench 11; Be used to make panel P closely to touch the contact device of reference position setting device; Be used for selectively frame assembly FA being installed to the attaching-detaching device that panel P goes up and disassemble from panel P.

The reference position setting device comprises: a fixing positioning element 14a, and it is used to set the reference position of panel P near the long limit and the minor face setting of the rectangular opening 12 of workbench 11; With a movable positioning element 14, it can drive in axial motion by pneumatic cylinder 13a, thereby can set the reference position of two or more different size panels.

Bracing or strutting arrangement comprises three support component 13 and three

pneumatic cylinder

13a and 13b that drive these support component 13 usefulness of being used for the sealing-in part of support panel.In these three support components 13, wherein two long limit and minor face settings near rectangular opening, make them approximate mutually opposed with contact device, and they also are installed in the guide end of moving plate 17, moving plate 17 matches with movable location division individual 14, and all the other support components 13 are directly connected to an independent pneumatic cylinder 13b.

Contact device touches device 15 by long edge joint and angular contact device 16 is formed, and their concrete structure will be narrated in the

back.Sliding seat

19,19 on one or

more pinch roller

19c, 19c ' and the push rod that is connected to

pneumatic cylinder

19a, 19a ' ', other face match, and on long limit and minor face to install with movable positioning element 14 opposed modes.

Sliding seat 19,19 ' is in such a manner installed, so that they can be along being respectively fixed to relative framework 18a, 18b and the guide bar 19b on 18a ', the 18b ', 19b ' slip.All above-mentioned parts be installed to matrix 18,18 ' on, matrix 18,18 ' in such a manner cooperates with pneumatic cylinder 15a, 15 ' a, so that pneumatic cylinder 15a, 15 ' a can be with matrixes 18,18 ' move back and forth.

The attaching-detaching device of shadow mask-frame assembly comprises: one by a pneumatic cylinder (showing) but and the fixed head 20 of lifting/lowering; And the 21 and sliding seats 22 of a rotating eccentricity wheel that cooperate with fixed head 20, sliding seat 22 can be taken turns 21 rotation and realize straight reciprocating motion corresponding to rotating eccentricity.

Further, sliding seat 22 the mode on the fixed head 20 of being installed on should make it approximately to be positioned at the center of the stud pin SP of panel P, and the mounting means of L shaped loading-unloading apparatus 22a, 22a ' makes it to be positioned at the top of sliding seat 22, so that their can installation or removal be installed on the shadow mask-frame assembly FA among the panel P of two different sizes respectively.

The working condition that as above constitutes according to the attaching-detaching device of the shadow mask of cathode ray tube of the present invention, existing then above described content continue to describe.

At first, if shadow mask-frame assembly is disassembled from bigger panel (as 19 inches panel), shown in Fig. 5 a, so earlier panel P is installed on the support component of installing on rectangular opening 12 edges of workbench 11 13, then, pneumatic cylinder 19a, the 19a ' that the long edge joint of driving is touched device 15 and bight contact device 16 starts simultaneously.

In this process, stationary positioned parts 14a on the pinch roller 19c that is connected to sliding seat 19 on the corresponding push rod of

pneumatic cylinder

19a, 19a ', 19 ' side makes panel P and is fixed in workbench 11 closely contacts, thereby panel P is placed near the central authorities of rectangular opening 12 of workbench 11.

In this state.For being positioned at the pneumatic cylinder (not shown) that the fixed head 20 of rectangular opening 12 belows of workbench 11 is provided with, lifting started.Therefore, fixed head 20 is raised, and like this, L shaped loading-unloading apparatus 22a should be between the hook spring HS of the stud pin SP of the inboard of panel P and shadow mask-frame assembly FA, and this utensil 22a is used for large size panel (as 19 inches) and is installed on sliding seat 22.Then, hydraulic motor 23 is started, so rotating eccentricity wheel 21 should rotate, thereby makes the center moving linearly of sliding seat 22 towards the rotating eccentricity wheel.

So the end of the L shaped loading-unloading apparatus 22a that matches with the top of sliding seat 22 inwardly pushes the hook spring HS of shadow mask-frame assembly, therefore make shadow mask-frame assembly FA break away from panel P.

On the other hand, if the shadow mask-frame assembly FA that will be installed in the less panel (as 14 inches panels) disassembles, shown in Fig. 5 b, the pneumatic cylinder 13a that is used to drive the support component 13 on the edge of the rectangular opening 12 that is located at workbench 11 at first starts, simultaneously, with long limit and

bight contact device

15,16 movable matrix 18,18 ' continuous

pneumatic cylinder

15a, 16a is started,

contact device

15,16 are oppositely arranged with the movable positioning element 14 of the movable platen 17 with support component 13 successively, so, long limit and

bight contact device

15,16 and support component 13 with respect to the certain distance that advances than small panel, promptly arrive the service position.

Then, this panel is fixed in the mode identical with fixing large-sized panel P.

Under this condition, on the sliding seat 22 that L shaped loading-unloading apparatus 22a, 22a ' are installed in successively with fixed head 20 matches, inner L shaped loading-unloading apparatus 22a ' works in the mode identical with the shadow mask-frame assembly that separates large size panel, thereby shadow mask-frame assembly FA is disassembled from panel.

For shadow mask-frame assembly FA being installed in the inner space of panel P, can only adopt a process opposite with said process, therefore, the explanation of these repetitions will be omitted.

In the embodiment of the invention described above, on sliding seat (22), only provide two covers L shaped attaching-detaching device.But, if necessary, can provide two covers above L shaped attaching-detaching device, so that be applicable to two or more shadow mask-frame assemblies.

Therefore, have such superiority according to the attaching-detaching device of the shadow mask-frame assembly of cathode ray tube of the present invention, promptly it can generally be used for the panel of multiple size, and can save the great amount of investment that is used for production equipment.

Further,, can significantly reduce the replacing of device, thereby the required invalid shut-down of parts of changing these devices is reduced largely for the panel of different size.

Claims

1, a kind of attaching-detaching device of shadow mask-frame assembly of cathode ray tube comprises:

A workbench that has rectangular opening in the central;

Be used for the reference position setting device of long limit of the panel on the described workbench and minor face setting reference position;

Be used for the bracing or strutting arrangement of described panel support on described rectangular opening;

Be used for the contact device that described panel that described bracing or strutting arrangement is supported and said reference position setting device closely contact; And

Attaching-detaching device, it is used for shadow mask-frame assembly is installed on the said panel and from said panel and disassembles,

It is characterized in that said reference position setting device comprises:

Be positioned at the fixing reference position setting device of forming by a fixing positioning element 14a of fixed position;

Can be at the movable reference position setting device of axial motion, form by the movable positioning element 14 on a pneumatic cylinder 13a, the one or more push rod that is installed on said pneumatic cylinder 13a, so that set the reference position of the panel of two or more different sizes, wherein said attaching-detaching device comprises two covers or overlaps loading-unloading apparatus more, so that be applicable to the panel of two or more different sizes;

Said attaching-detaching device comprises a series of L shaped loading-unloading apparatus 22a, 22a ' that are applicable to the different size panel, said loading-unloading apparatus 22a, 22a ' are installed on a series of sliding seats 22, and these sliding seats 22 can move back and forth before and after the center with respect to said attaching-detaching device;

Said contact device comprises: movable matrix 18,18 ' and, they are respectively by pneumatic cylinder 15a, 15a ' driving and can moving on certain direction; And long edge joint touches device 15 and bight contact device 16, they be installed in respectively said movable matrix 18,18 ' upper face;

Said bracing or strutting arrangement or be installed on the guide end of said movable reference position setting device perhaps provides an independent movable device, so that it can move on certain direction.