JPS6230781Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a separation device for a panel and a shadow mask used in a color cathode ray tube production line, for example, in the process of coating a cathode ray tube panel with phosphor.

[Technical background of the invention and its problems]

Previously, the work of separating the panel and shadow mask in the above processes had to be done manually, but
By hand, the shadow mask can be transformed,
There was a risk that the shadow mask would come into contact with the inner surface of the panel, damaging the phosphor screen, and that dust scattered by people could adhere to the phosphor screen, resulting in defective products. For this reason, attempts have been made to mechanize the separation work. However, although conventional separation devices of this type perform a certain function for panels of a single shape, they cannot be applied to panels of different sizes. For this reason, in order to increase the variety of products, a production line for each product is required, and even in the case of common use, parts must be changed to match the shape of the panel, which requires a lot of time.

[Purpose of invention]

The purpose of this invention is to be able to apply it as is to two types of panels, large and small, of the planned size without switching, and to be able to separate the panel and shadow mask without deforming the shadow mask or damaging the phosphor screen.
It is an object of the present invention to provide a separation device for panels and shadow masks that is effective even for diversification.

[Summary of the idea]

The present invention is a device that separates shadow masks from two types of cathode ray tube panels of a planned size, each having an opening through which two types of shadow masks, large and small, can pass, and which can move diagonally forward and backward at the four corners of the device. a panel mounting stand provided with a panel holder; and a panel mounting stand provided on the panel mounting stand, facing each of the long side and short side of the panel, and configured to be movable toward the center of the panel. A positioning slider configured so that the amount of displacement can be switched according to two types of panels, large and small, and that positions the panel at a predetermined position by contact with the corresponding one side, and a long side and a short side of the panel. a pusher base configured to be movable up and down below the panel mounting base; It is configured to be able to be displaced outwardly, and when the pusher base is raised, it is inserted into the panel on the panel mounting base and is pressed against the inner side of the shadow mask frame inside the panel by the outward displacement operation by the cylinder mechanism. a mask holder pusher which is provided on the pusher base and which is inserted into the engagement portion between the leaf spring holder of the shadow mask and the panel reference pin when the pusher base is raised; It is equipped with a removal mechanism that is positioned at each insertion position of the above-mentioned engagement part in the panel and displaces a predetermined distance in the direction in which the above-mentioned engagement part is separated from this insertion position, and is capable of parts switching work for two types of panels, large and small. The present invention provides a separation device for a panel and a shadow mask, which is characterized in that it can be applied without the need for separation.

[Example of idea]

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

In FIG. 1 and FIG. 2, a panel mounting table 2 is provided on the upper stage of the machine frame 1, on which a cathode ray tube panel p having a shadow mask m incorporated therein is placed.
Further, a board 4 for a take-out mechanism 3 for taking out the shadow mask m downward from inside the panel p is provided at the right-hand middle stage of the machine frame 1, and a board 7 for the cam group 5 and its drive mechanism is provided at the bottom stage of the machine frame 1. .

In addition, in FIGS. 1 to 3, a board 8 is provided in the middle on the left side of the machine frame 1, and this board 8 supports a pair of rails 9, and the rails 9 carry a mask whose upper surface is approximately U-shaped. The base 10 is transferred onto the substrate 8 from directly below the front panel mounting table 2. 11 is a roller of the base 10 that is supported by the rail 9 and rolls.

As shown in Fig. 3, the panel mounting table 2 is capable of mounting two types of panels, large and small, _p1 and _p2 , and has an opening 14 on its surface that is substantially the same shape as the large panel _p1 or larger. The four corners of this opening 14 are provided with panel receivers 15 that move forward and backward in diagonal directions. Here, the panel receivers 15 located at both ends of the right side of the long side of the panel _p1 in the figure
is connected via a rod 104 to a triangular lever 103 which is rotated around a support shaft 102 by a cylinder 101 operated by air or hydraulic pressure.
The triangular lever 103 moves forward and backward in the diagonal direction in response to the rotation of the triangular lever 103. Also, the panel receivers 15 located at both ends of the left side of the long side of the panel _p1 are supported by the support shafts 10.
The panel support 15 on the right side of the L-shaped lever 106 is engaged with one end of the L-shaped lever 106 which is rotatable around the center of the panel support 15 on the right side of the L-shaped lever 106 via an engagement pin 107. The other end of the L-shaped lever 106 is connected to the triangular lever 103 via a connecting rod 108. When the triangular lever 103 is rotated, the panel support 15 on the right side of the L-shaped lever 106 is engaged with the triangular lever 103.
These panel receivers 15 move forward and backward in conjunction with each other.
When the panel p having the mask m therein is loaded, each of them advances to support the lower side of the panel p, and retreats when the mask m is separated as described later.

In FIGS. 1 and 3, reference numerals 110 and 111 are positioning sliders, which are arranged to face each of the short side and long side of the panel p, and are located at the center in the long side direction of the panel p. Alternatively, it is configured to be able to be displaced (slided) toward the center in the short side direction. Then, as shown in FIG. 3, the panel p is positioned at a predetermined position on the panel mounting table 2 by coming into contact with each side of the panel p via the rollers 23.

Here, the displacement of the slider 110 and the slider 111 toward the center of the panel p is caused by the lever 113 driven by the cam group 5 shown in FIG.
It is carried out by. That is, slider 110
4 and 5, which are enlarged views, the lever 113 is formed in an L shape, rotates in the vertical direction in the figure around a support shaft 114 provided at the bent portion, and is connected to one end of the lever 113. presser 11
5 moves forward and backward. This presser 115 is attached to a pair of guide rods extending from the slider 110 so as to be able to move forward and backward. Reference numeral 116 denotes a lever for switching the amount of displacement, which is formed in an L shape, and a switching solenoid 117 connected to the tip of the short side allows the tip of the long side to be connected to the pusher 115 as shown in FIG. The opposing state and the pusher 115 as shown in FIG.
It can be switched to a state where it is removed from the state.

Here, when positioning the small panel _p2 , as shown in FIG. Enlarge. That is, the amount of protrusion of the panel p toward the center increases. In contrast, the large panel p ₁
When positioning the lever 116, the lever 116 is removed from the presser 115, as shown in FIG. Therefore, part of the rotation amount of the lever 113 is
5 is used to move the slider 110 until it touches the rear end of the slider 110, and the amount of displacement of the slider 110 itself becomes small. That is, the amount of protrusion of the panel p toward the center becomes smaller. In this way, the amount of displacement of the slider 110 is changed depending on the size of the panel p, but the lever 113 driven by the cam group 5
The amount of rotation is constant, and there is no need for the cam group 5 to have a special configuration.

Returning to FIGS. 1 and 3, 120 is a pressing mechanism, and a dog-shaped lever 1 for pressing the long side of the panel p.
21, the above-mentioned dog-shaped lever 121 having an L-shaped lever 122 for pressing the short side and a cylinder 123 powered by air or hydraulic pressure to rotate these levers;
The intermediate portion is rotatably supported by a support shaft 124, and one end thereof is provided with a pressing roller 23, and the other end is rotatably connected to one end of the cylinder 123. In addition, the L-shaped lever 12
2, the tip of its long side is rotatably supported by a support shaft 125, and the bent portion is provided with a pressing roller 23, and the tip of its short side is connected to the other end of the cylinder 123. Rotatably connected. As the cylinder 123 extends, the cylinder 123 rotates around the support shafts 124 and 125, and the roller 2
3 to press the other side of the long side and short side of the panel p, and hold the panel p together with the positioning sliders 110 and 111 under pressure.

The mask transport base 1 shown in FIGS. 1 and 3
A hole 16 slightly larger than the shadow mask m is bored in the hole 16, and a movable support part 17 for supporting the shadow mask m taken out from the panel p by the take-out mechanism 3 and its rotation mechanism are installed at the four corners of this hole 16. establish. This rotation mechanism includes a pair of air cylinders 18 provided on one side of the base 10, which directly rotates the movable support parts 17 at two locations on the one side. 17
The other side 2 is connected to the other side 2 via the interlocking rod 19 connected to the rear protrusion.
The movable support portion 17 at the location can be rotated.

The extraction mechanism 3 shown in FIGS. 6 to 8 includes a fixing mechanism for removing the shadow mask m, a removing mechanism for removing the leaf spring holder A of the shadow mask m from the reference pin B of the panel p, and the fixing mechanism. and a lifting mechanism for the removal mechanism. Each mechanism of this take-out mechanism 3 will be explained below.

The elevating mechanism of the take-out mechanism 3 includes a guide rod 33 that vertically moves through a guide tube 35 provided on the base plate 4 as shown in FIG. 7, and is coupled to the lower end of this guide rod 33 as shown in FIG. Under plate 32, this under plate 3
It has a drive lever 41 connected to 2. As shown in FIG. 2, by rotating the drive lever 41 connected to the cam group 5, the pusher base 34 connected to the upper end of the guide rod 33 is moved up and down.

On the lower surface of the pusher base 34 corresponding to the center of both short sides and the center of one long side of the panel p, there is a hole at the center of the base 34 to form a removal mechanism 30, as shown in FIG. A guide 43 having directionality is fixed to each side, and each guide 4
A slider 44 is fitted into the slider 3 so as to be movable forward and backward, and mask holder pushers 45, 46, 47 are fixed near the outer end of each slider 44. The mask holder pushers 45, 46, and 47 protrude from the upper surface of the pusher base 34 shown in FIG. 6 through openings provided therein. And pushsha base 3
4, it is inserted between the inner surface of the panel p and the outer surface of the shadow mask m, as shown in FIGS. 7 and 8, and is used to separate them.
Among these, the mask holder pushers 45 and 46 are
As shown in FIGS. 8 and 9, the leaf spring holder A 1 fixed to the center of the outer surface of both short sides of the frame f of the shadow mask m is pushed, and the fitting hole of this holder A ₁ is inserted _. h from the main reference pin B ₁ protruding from the center of the inner surface of both short sides of the panel p, and the other mask holder pushers 47 are
Similarly, the leaf spring holder on the long side of the shadow mask m
Connect the fitting hole of A ₂ to the sub reference pin B ₂ on the long side of panel p.
It is to be removed from The movement of these mask holder pushers 45, 46, 47 is controlled by the tip rollers 50 of each movement rod 49 fixed to each slider 44.
Each cam groove 51 shown in FIGS. 6 and 8 of the disk 39
This is done by rotating the disk 39 and moving each advancement/retraction rod 49 forward and backward. Further, the rotation of the disk 39 is controlled by a bevel gear 128 connected to the lower end of the rotation shaft 37.
and the motor 1 on the under plate 32 connected via a bevel gear 129 meshing therewith.
It will be held at 30. Therefore, the disk 39 can be independently rotated independently of the cam group 5,
It is also possible to adjust the positions of the mask holder pushers 45, 46, 47 corresponding to panels _p1 , _p2 of different sizes.

Further, the fixing mechanism 56 for removing the shadow mask m is constructed on the pusher base 34, as shown in FIGS. 6 and 7. That is, in FIG. 6, a slider 133 is configured to be movable outwardly on the pusher base 34, and has frame retainers 1 at both ends of its front edge.
Has 34. 135 is the driving cylinder, L
It is rotatably connected to the tip of the short side of the shape lever 136. The tip of the long side of this L-shaped lever 136 is rotatably connected to the slider 133, and by rotation about a support shaft 137, the slider 13
3 moves forward and backward.

Here, the frame retainer 134 is located within the shadow mask m as shown in FIG. 7 when the pusher base 34 is raised, and the slider 133
Due to the outward displacement of the shadow mask frame f, it comes into pressure contact with the inner side of the shadow mask frame f and holds it.

Next, the operation of this embodiment is shown in FIGS. 10 to 22.
This will be explained based on the diagram.

(a) A panel p with a shadow mask m incorporated therein is placed on the panel receiver 15 of the panel mounting table 2 from a transfer conveyor (not shown) using a panel feeder 71 equipped with a suction pad 70 (10th panel feeder 71).
Fig. 11).

(b) Next, the positioning sliders 110 and 111 are operated to bring the rollers 23 into contact with each of the long side and short side of the panel p to position the panel p (FIG. 12). In this case, if the panel is small, the lever 116 for changing the amount of displacement
is brought into contact with the presser 115 and the slider 110,
Increase the displacement amount of 111. If the panel is a large one, the lever 116 is removed from the presser 115 to reduce the amount of displacement.

(C) Next, the cylinder 123 of the pressing mechanism 120 is extended, and the pressing rollers 23 provided on the levers 121 and 122 are pressed against the other sides of the long side and short side of the panel p, and the slider 11
0 and 111 and hold the panel p under pressure (FIG. 13).

(d) Next, the mask holder pushers 45, 46, 4 are positioned by the cam groove 51 of the disk 39 so that they can be inserted into the gap between the side wall of the panel p and the leaf spring holder A of the shadow mask m.
7 and a mask frame presser 134 for fixing the frame f of the shadow mask m is raised, and the mask holder pushers 45, 46, 47 are inserted into the gaps, and the mask frame presser 134 is inserted. Insert it into the inner space of the shadow mask m (FIG. 14).

(E) Next, the cylinder 135 is operated to press the mask frame retainer 134 into contact with the inside of the long side of the frame f of the shadow mask m, thereby holding and fixing the shadow mask m (FIG. 15).

(F) Next, the motor 130 rotates the rotating shaft 37 and the disk 39 to move the mask holder pushers 45, 46, 47 inward, and the plate spring holder A of the shadow mask m is moved to the reference pin of the panel p. Remove from B (Fig. 16).

(g) Next, the slider 11 for positioning panel p
0, 111 and the pressing mechanism 120 are operated to return, and the pressing roller 23 is released from the side surface of the panel p. In this state, the suction pad 75 of the panel take-out machine 74 is suctioned to the panel p, and the panel p is transferred from the panel mounting table 2 onto another panel transfer conveyor (not shown) (FIG. 17).

(H) The shadow mask m removed from the panel p in the above step is lowered while being held on the pusher base 34 (FIG. 18).

(li) Then, the shadow mask m is placed on the movable support portion 17 of the mask transport base 10 waiting below. In addition, mask frame holding 13
4 inward and the mask holder pushers 45, 46, 47 outward to release the fixation of the shadow mask m (FIG. 19).

(J) Next, the pusher base 34 is lowered below the mask transfer base 10 through the hole 16 (FIG. 20).

(l) Next, the mask transport base 10 on which the shadow mask m is placed is moved to the outside of the panel mounting table 2 along the rail 9 by the cylinder 85 shown in FIG. 2 (FIG. 21).

(w) Next, the shadow mask m is scooped up from the mask transport base 10 by the shadow mask take-out machine 90 and transferred to a mask transport conveyor (not shown) (FIG. 22).

(W) Finally, return the mask transport base 10 to the bottom of the panel mounting table 2, and use the cylinder 18 to insert the movable support part 17 into the hole 16 so that the movable support part 17 does not interfere with the vertical movement of the pusher base 34.
(not shown).

[Effect of idea]

As described above, according to the present invention, it is possible to reliably and quickly separate the panel and the shadow mask without bothering human hands, and there is no possibility that defective products will be produced due to dust etc. scattered by people. Furthermore, since it can be applied to two types of panels, large and small, without the need for parts switching work, it is advantageous in manufacturing a wide variety of products compared to conventional methods that could only be applied to one type of panel. It has various effects.

[Brief explanation of the drawing]

The figures show an embodiment of the panel and shadow mask separation device of the present invention, in which Fig. 1 is an overall perspective view, Fig. 2 is an overall front view, Fig. 3 is an overall plan view, and Fig. 4 is an overall perspective view. 5 is a perspective view showing different states of the positioning slider, FIG. 6 is a perspective view of the ejecting mechanism, FIG. 7 is a partially cutaway front view of the ejecting mechanism, and FIG. 8 is a plan view of the ejecting mechanism. Figure 9 is an enlarged cross-sectional view of the engaging part between the panel and the shadow mask.
Figures 0 to 22 are for explaining the operation, and Figure 10 is a front view of the main parts, Figures 11 and 12.
Fig. 13 is a plan view of the main part, Fig. 14 is a front sectional view of the main part, Fig. 15 is a plane sectional view of the main part,
6 to 22 are front sectional views of main parts. m...shadow mask, p, _p1 , _p2 ...panel, 2...panel mounting stand, 14...opening, 15...
... Panel holder, 30 ... Removal mechanism, 34 ... Pusher base, 45, 46, 47 ... Mask holder pusher, 56 ... Fixing mechanism when taking out, 11
0,111...Slider for positioning, 120
...pressing mechanism.

Claims (1)

[Scope of utility model registration request] In a device for separating shadow masks from panels for cathode ray tubes of two sizes, large and small, each having a predetermined size, there is provided a panel holder that has an opening through which two sizes of shadow masks, large and small, can pass, and that can move forward and backward in diagonal directions at its four corners. and a panel mounting table provided on the panel mounting table, which is disposed on the panel mounting table and is configured to face each of the long side and short side of the panel and to be able to be displaced toward the center of the panel, and the amount of displacement is A positioning slider that is configured to be switched according to two types of panels, large and small, and that positions the panel at a predetermined position by contact with the corresponding one side, and a long side and a short side of the panel on the other side. a pressing mechanism that faces each other and presses the panel toward the positioning slider by contacting the other side; a pusher base that is configured to be movable up and down below the panel mounting base; When the pusher base is raised, the pusher base is inserted into the panel on the panel mounting base, and by the outward displacement operation by the cylinder mechanism, it comes into pressure contact with the inner side of the shadow mask frame inside the panel and holds it. a time fixing mechanism, a mask holder pusher which is provided on the pusher base and which is inserted into the engagement portion between the leaf spring holder of the shadow mask and the panel reference pin when the pusher base is raised; 1. A separation device for separating a panel and a shadow mask, comprising a removal mechanism that is positioned at each insertion position into an engagement part and displaces a predetermined distance from the insertion position in a direction in which the engagement part is separated.