CN209918689U - Double-side frame inner flanging die for liquid crystal television display back plate - Google Patents

Abstract

The utility model discloses a double-side frame inner flanging die of a liquid crystal display back plate, which comprises a lower die holder, an upper die holder, a female die, a pressing plate, a positioning mechanism, a first flanging mechanism and a second flanging mechanism, wherein the upper die holder is arranged above the lower die holder, the female die is arranged on the lower die holder, the upper surface of the female die is concavely provided with a cavity profile matched with the back plate, the pressing plate is arranged above the female die and moves up and down, the pressing plate is pressed on the back plate in the female die, the positioning mechanism is arranged on the pressing plate and positions the flanging crease of the side frame by the positioning mechanism, the opposite side frame of the first flanging mechanism is arranged outside the back plate, the first flanging mechanism bends the outer side frame inwards, the second flanging mechanism is arranged on the upper die holder, and the second flanging mechanism bends the inner side frame downwards, the flanging processing can be carried out on the double-side frame of the television backboard.

Description

Double-side frame inner flanging die for liquid crystal television display back plate

Technical Field

The utility model belongs to the TV set field, in particular to bilateral frame inside flanging mould of LCD TV display backplate.

Background

As shown in fig. 1, a liquid crystal display television backboard 1, the side frames 2 at the two ends of the backboard in the length direction are of a double-side frame structure, and include an outer side frame 1b and an inner side frame 1c, the inner side frame 1c is formed by inward folding of the top edge profile of the outer side frame 1b, the inner side frame 1c is attached to the outer side frame 1b to form a double-side frame structure, and because the backboard has a large volume, a matched mold is required to ensure the flanging process.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the not enough of existence among the prior art, the utility model provides a flanging die in bilateral frame of LCD TV display backplate can carry out the turn-ups processing to the bilateral frame of TV backplate.

The technical scheme is as follows: in order to achieve the above purpose, the technical scheme of the utility model is as follows:

a double-side frame inner flanging die of a liquid crystal television display back plate comprises a lower die base, an upper die base, a female die, a pressing plate, a positioning mechanism, a first flanging mechanism and a second flanging mechanism, the upper die base is arranged above the lower die base at an interval, the female die is arranged on the lower die base, a concave cavity molded surface matched with the back plate is concavely arranged on the upper surface of the female die, a pressing plate is arranged above the female die and moves up and down, the pressing plate is pressed on the back plate in the female die, the positioning mechanism is arranged on the pressing plate and positions the flanging crease of the side frame, the first flanging mechanism is arranged on the outer side of the back plate opposite to the side frame, the first flanging mechanism bends the outer side frame inwards, the second flanging mechanism is arranged on the upper die base, and the second flanging mechanism is arranged right above the pressing plate, and the second flanging mechanism bends the inner side frame downwards.

Furthermore, the two groups of positioning mechanisms are symmetrically arranged in the length direction of the pressing plate, each positioning mechanism comprises a third linear displacement mechanism and a positioning plate, each positioning plate is of a plate-shaped structure parallel to the pressing plate, the positioning plates are horizontally and reciprocally displaced relative to the side frames through the third linear displacement mechanisms, the length of the side walls of the positioning plates, facing the side frames, is matched with the length of the inner side frames, and the heights of the upper surfaces of the positioning plates and the flanging creases of the side frames are consistent; under the flanging state, the positioning plate is abutted against the inner wall surface of the side frame.

Furthermore, first turn-ups mechanism includes first straight line displacement mechanism and first turn-ups drift, first turn-ups drift is the rectangular plate body structure that is on a parallel with the clamp plate, first turn-ups drift sets up along the width direction of backplate, first turn-ups drift passes through the drive of first straight line displacement mechanism and slides the setting on the die along the length direction laminating of backplate.

Furthermore, the second flanging mechanism comprises a second linear displacement mechanism and a second flanging punch, the second flanging punch is displaced up and down through the second linear displacement mechanism, the second flanging punch is of an inverted U-shaped plate structure, two free arms of the second flanging punch are parallel to each other and correspond to the side frames, and a forming surface of the second flanging punch is arranged in a gap with the inner side surface of the female die.

Has the advantages that: the utility model discloses a positioning mechanism fixes a position the turn-ups crease, carries out the secondary turn-ups to the inside frame part of side frame respectively through first turn-ups mechanism and second turn-ups mechanism for the bilateral frame of TV set backplate can be accomplished in an action stroke, and the turn-ups precision is high, process velocity is fast.

Drawings

Fig. 1 is a schematic diagram of a television back plate structure processed by flanging a die of the utility model;

FIG. 2 is a top view of the overall structure of the present invention;

FIG. 3 is a schematic perspective view of the overall structure of the present invention;

FIG. 4 is a schematic view of the overall structure of the present invention in a C-C direction;

fig. 5 is a schematic diagram of a local enlarged structure B of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 2 to 5, the double-side-frame inward flanging die for the liquid crystal television display back plate comprises a lower die holder 2, an upper die holder 3, a female die 13, a pressing plate 11, a positioning mechanism 15, a first flanging mechanism 16 and a second flanging mechanism 17, wherein the upper die holder 3 is arranged above the lower die holder 2 at intervals, the female die 13 is arranged on the lower die holder 2, a cavity surface matched with the outer side surface of the back plate 1 is concavely arranged on the upper surface of the female die 12 and used for positioning the back plate 1, the pressing plate 11 is arranged above the female die 13 and vertically displaced, the pressing plate 11 is pressed on the back plate 1 in the female die and used for fixing the back plate, the positioning mechanism 15 is arranged on the pressing plate 11, the positioning mechanism 15 is used for positioning the flanging crease of the side frame 1a, the first flanging mechanism 16 is arranged outside the back plate 1 opposite to the side frame 1a, the first flanging mechanism 16 bends the outer side frame 1b inwards by 90 degrees, the second flanging mechanism 17 is arranged on the upper die base 3, the second flanging mechanism 17 is arranged right above the pressing plate 11, the second flanging mechanism 17 bends the inner side frame 1c downwards by 90 degrees, so that the inner side frame 1c and the outer side frame 1b are mutually attached, the flanging crease is positioned through the positioning mechanism, and the inner side frame part of the side frame is respectively flanged for the second time through the first flanging mechanism and the second flanging mechanism, so that the double side frames of the television backboard can be completed in one action stroke, the flanging precision is high, and the processing speed is high.

The two groups of positioning mechanisms 15 are symmetrically arranged in the length direction of the pressing plate 11, each positioning mechanism 15 comprises a third linear displacement mechanism 10 and a positioning plate 9, each positioning plate 9 is of a plate-shaped structure parallel to the pressing plate 11, the positioning plates 9 are horizontally and reciprocally displaced relative to the side frames 1a through the third linear displacement mechanisms 10, each third linear displacement mechanism 10 is an air cylinder or a hydraulic cylinder, the length of the side wall of each positioning plate 9 facing the side frame is matched with the length of the inner side frame 1c, namely the length of one side wall of each positioning plate facing the outer side frame is equal to or slightly smaller than the length of the turned-up inner side frame 1c, the complete turning-up of the inner side frame 1c can be ensured while interference on the side walls of the long sides on the back plate is avoided, and the height of the turning-up crease of the upper surface of each positioning plate 9 is consistent; under the turn-ups state, locating plate 9 butt in the internal face of side frame, when inboard frame 1c carries out the turn-ups of buckling through first turn-ups mechanism, the inboard frame is buckled on locating plate 9, appears the crease. The positioning plate 9 is arranged above the pressing plate 11 in a sliding mode, the pressing plate 11 is provided with guide strips 12, the guide strips 12 are arranged along the length direction of the pressing plate, sliding grooves are correspondingly formed in the bottom of the positioning plate 9, and the guide strips guide the displacement of the positioning plate 9.

Two sets of first turn-ups mechanism 16 symmetry sets up on the length direction of clamp plate 11, first turn-ups mechanism 16 includes first linear displacement mechanism 8 and first turn-ups drift 7, first linear displacement mechanism is cylinder or pneumatic cylinder, first turn-ups drift 7 is the rectangular plate body structure that is on a parallel with clamp plate 11, the width direction setting of backplate is followed to the length direction of first turn-ups drift 7, first turn-ups drift 7 slides through the length direction laminating of first linear displacement mechanism 8 drive along the backplate and sets up on die 13, also is that the turn-ups crease height of inside and outside frame just with the top surface parallel and level of die 13, and first turn-ups drift directly makes the inside frame inwards buckle through first linear displacement mechanism.

The second flanging mechanism 17 comprises a second linear displacement mechanism 5 and a second flanging punch 6, the second linear displacement mechanism 5 is an air cylinder or a hydraulic cylinder, the second flanging punch 6 is vertically displaced through a second linear displacement mechanism 5, the second flanging punch 6 is of an inverted U-shaped plate body structure, the two free arms of the second flanging punch 6 are respectively parallel and correspond to the two side frames 1a, the top of the U-shaped plate body is penetrated with a through hole 19 for the telescopic rod of the fourth linear displacement mechanism to pass through, the forming surface 20 of the second flanging punch 6 is arranged with a gap with the inner side surface of the female die 13, after the first flanging mechanism finishes flanging, the positioning plate 9 moves backwards through the third linear displacement mechanism, the second flanging punch moves downwards through the second linear displacement mechanism and covers the inner side frame bent in the upper sequence in a pressing mode, and the inner side frame is bent downwards to complete flanging.

The utility model discloses a working method does: the television back plate 1 is placed in the female die 13, the fourth linear displacement mechanism 4 drives the pressing plate 11 to displace downwards and press the inner side face of the back plate, the third linear displacement mechanism drives the positioning plate 9 to displace towards the side frame 1a and press the side frame in the female die, and then the first straight line is positioned at the vertical side frame and folded by 90 degrees when the mechanism drives the first flanging punch 7, so that the first flanging is completed; then the locating plate 9 retracts and the side frames are arranged at intervals, the first flanging punch moves backwards, the foremost end of the first flanging punch exceeds the distance of one wall thickness of the female die, the foremost end of the first flanging punch is located above the outer side frame, the third flanging punch is driven by the third linear displacement mechanism to bend downwards 90 degrees simultaneously for the inner side frame after the first flanging of the two sides, the flanging is completed, the mechanisms reset, the whole process is simple, and the flanging processing can be quickly carried out on the two side frames.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims (4)

1. The utility model provides a bilateral frame inside flanging mould of LCD TV display backplate which characterized in that: comprises a lower die holder (2), an upper die holder (3), a female die (13), a pressing plate (11), a positioning mechanism (15), a first flanging mechanism (16) and a second flanging mechanism (17), wherein the upper die holder (3) is arranged above the lower die holder (2) at intervals, the female die (13) is arranged on the lower die holder (2), a cavity profile matched with a back plate (1) is concavely arranged on the upper surface of the female die (13), the pressing plate (11) is arranged above the female die (13), the pressing plate (11) is vertically displaced, the pressing plate (11) is pressed on the back plate in the female die, the positioning mechanism (15) is arranged on the pressing plate (11), the positioning mechanism (15) is used for positioning a flanging crease of a side frame (1a), the opposite side frame (1a) of the first flanging mechanism (16) is arranged on the outer side frame (1b) of the back plate (1), and the first flanging mechanism (16) is bent inwards to form the outer side frame (1b), the second flanging mechanism (17) is arranged on the upper die base (3), the second flanging mechanism (17) is arranged right above the pressing plate (11), and the second flanging mechanism (17) bends the inner side frame (1c) downwards.

2. The double-sided frame inward flanging die for the liquid crystal television display back plate according to claim 1, wherein: the two groups of positioning mechanisms (15) are symmetrically arranged in the length direction of the pressing plate (11), each positioning mechanism (15) comprises a third linear displacement mechanism (10) and a positioning plate (9), each positioning plate (9) is of a plate-shaped structure parallel to the pressing plate (11), the positioning plates (9) horizontally reciprocate relative to the side frames (1a) through the third linear displacement mechanisms (10), the length of the side walls, facing the side frames, of the positioning plates (9) is matched with the length of the inner side frames (1c), and the heights of the flanging creases of the side frames (1a) are consistent with the upper surface of each positioning plate (9); under the flanging state, the positioning plate (9) is abutted against the inner wall surface of the side frame.

3. The double-sided frame inward flanging die for the liquid crystal television display back plate according to claim 1, wherein: first turn-ups mechanism (16) are including first straight line displacement mechanism (8) and first turn-ups drift (7), first turn-ups drift (7) are the rectangular plate body structure that is on a parallel with clamp plate (11), first turn-ups drift (7) set up along the width direction of backplate, first turn-ups drift (7) are through the length direction laminating slip setting of first straight line displacement mechanism (8) drive along the backplate on die (13).

4. The double-sided frame inward flanging die for the liquid crystal television display back plate according to claim 1, wherein: second turn-ups mechanism (17) are including second straight line displacement mechanism (5) and second turn-ups drift (6), second turn-ups drift (6) are through displacement about second straight line displacement mechanism (5), second turn-ups drift (6) are the plate body structure of the type of falling U, two free arms of second turn-ups drift (6) are parallel respectively and are corresponding to side frame (1a), profile (20) of second turn-ups drift (6) set up with the medial surface clearance of die (13).

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