CN212634027U - Display screen backplate forming die - Google Patents
Display screen backplate forming die Download PDFInfo
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- CN212634027U CN212634027U CN202021117930.2U CN202021117930U CN212634027U CN 212634027 U CN212634027 U CN 212634027U CN 202021117930 U CN202021117930 U CN 202021117930U CN 212634027 U CN212634027 U CN 212634027U
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- 238000007599 discharging Methods 0.000 claims description 44
- 238000005452 bending Methods 0.000 claims description 23
- 238000007667 floating Methods 0.000 claims description 18
- 239000002994 raw material Substances 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 12
- 238000007493 shaping process Methods 0.000 abstract description 6
- 238000004080 punching Methods 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 2
- 239000011265 semifinished product Substances 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a display screen backplate forming die, including last mould, lower mould, go up the shaping pole, become the pole down, crooked terrace die and die, the cooperation of going up shaping pole and shaping pole down is used for punching out rectangular channel, evagination structure and recess on former raw material plate, and the cooperation of crooked terrace die and die is used for carrying out 90 punching presses to the former raw material plate that the shaping goes out rectangular channel and recess and bends. The utility model has the advantages that: one set of mould possesses two stations, can accomplish twice process, has simplified the complexity of equipment, and the machining precision is high.
Description
Technical Field
The utility model relates to a display screen backplate production field especially relates to a display screen backplate forming die.
Background
The traditional process of the display screen back plate is to punch a hole at a designated local position of a raw material plate and then bend the punched hole to form a bayonet, so that a clamping hook of a plastic product clamps the bayonet, and in order to prevent light leakage and dust entering from the bayonet, the bayonet is generally required to be plugged by gummed paper pasted inside the back plate, the process not only wastes gummed paper, but also needs three steps in the whole processing flow, the production efficiency is low, the specific flow is shown in fig. 5, a in fig. 5 indicates that the punched hole is punched at the designated local position on the raw material plate, b in fig. 5 indicates that the punched hole is bent to form the bayonet on the raw material plate, and c in fig. 5 indicates that.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a display screen backplate forming die is provided to overcome not enough among the above-mentioned prior art.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
a display screen backboard forming die at least comprises an upper die, a lower die, an upper forming rod, a lower forming rod, a bending male die and a female die, wherein the upper die and the lower die are arranged in a vertically opposite mode, and the bending male die and the female die are respectively arranged on the upper die and the lower die; the upper forming rod and the lower forming rod are respectively arranged on the upper die and the lower die; the lower end surface of the upper forming rod is convex, and the lower end surface of the upper forming rod at least comprises a slope a, a plane a and a slope b which are sequentially connected, the included angle between the slope a and the slope b is 92-95 degrees, and the upper end surface of the upper forming rod is a plane; an avoidance port is arranged on the lower end surface of the bending male die.
The utility model has the advantages that: : one set of mould possesses two stations, can accomplish twice process, has simplified the complexity of equipment, and the machining precision is high.
Further: the upper die comprises an upper die base, an upper padding plate, an upper fixing plate, a middle plate, a discharging plate, a mandril a, a discharging spring and a spring a, wherein the upper die base, the upper padding plate and the upper fixing plate are sequentially fixed from top to bottom; the middle plate and the discharging plate are sequentially arranged below the upper fixing plate, and the middle plate and the discharging plate are fixed; the discharging spring is arranged between the upper fixing plate and the middle plate, the upper fixing plate is provided with a through hole a, and the spring a is arranged in the through hole a; the upper end of ejector pin an is connected with spring a, and the intermediate plate is passed to ejector pin a's lower extreme, and the upper end of going up the shaping pole is connected with ejector pin a's lower extreme, and the stripper is passed to the lower extreme of going up the shaping pole.
Further: the upper end of the bending male die is tightly attached to the upper backing plate through the upper fixing plate, and the lower end of the bending male die sequentially penetrates through the middle plate and the discharging plate.
Further: the upper die further comprises a bolt a, and the screw end of the bolt a sequentially penetrates through the upper die base, the upper backing plate, the upper fixing plate and the middle plate and then is in threaded connection with the stripper plate.
Further: the lower die comprises a lower die base, a lower die plate, a lower backing plate, an ejector rod b, a spring b and a floating block, the lower die plate, the lower backing plate and the lower die base are sequentially stacked from top to bottom, a through hole b is formed in the lower die plate, the floating block is arranged in the through hole b, and the height of the floating block is smaller than or equal to the depth of the through hole b; a through hole c is formed in the lower die base, a spring b is arranged in the through hole c, one end of a mandril b is connected with the floating block, and the other end of the mandril b penetrates through the lower base plate and then is connected with the spring b; one end of the lower forming rod is connected with the lower backing plate, and the other end of the lower forming rod penetrates through the floating block.
Further: the lower die further comprises a mandril c, a spring c and a discharging block, a through hole d is formed in the lower die base, the spring c is arranged in the through hole d, the discharging block is arranged in a forming cavity of the female die, and two ends of the mandril c are connected with the discharging block and the spring c.
The beneficial effects of adopting the five steps are as follows: the punching and discharging can be stably completed, the operation precision is high, and the product success rate is improved.
Drawings
Fig. 1 is a die assembly diagram of a display screen back plate forming die of the present invention;
fig. 2 is a die opening diagram of a display screen back plate forming die of the present invention;
FIG. 3 is a structural diagram of the upper molding rod of the present invention;
FIG. 4 is a processing flow chart of the display screen back plate forming mold product of the present invention;
fig. 5 is a flow chart of a product processing in the prior art.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
Example 1
As shown in fig. 4, a bayonet 710 is arranged at the junction of a side plate and a bottom plate on a display screen back plate 7, the depth of the bayonet 710 is smaller than the plate thickness of the display screen back plate 7, b in fig. 4 represents a structural diagram of the display screen back plate 7, and the bayonet does not penetrate through the side plate or the bottom plate of the display screen back plate, so that the condition of light leakage and dust entering does not exist, the gummed paper pasting process is omitted, the production efficiency is greatly improved, and the production cost is reduced.
Example 2
As shown in fig. 4, this embodiment is further optimized based on embodiment 1, and it specifically includes the following steps:
the difference between the thickness of the display back plate 7 and the depth of the bayonet 70 is preferably greater than 0.1 mm.
As a preferred embodiment, the bayonet 710 is 0.3mm wide and 0.2mm deep.
The clamping hook can be guaranteed to stably clamp the bayonet, and breakage of the subsequent bayonet can be avoided.
Example 3
As shown in fig. 4, a method for forming a display screen back plate includes the following steps:
firstly, stamping a rectangular groove 8 at a preset position of the lower surface of a raw material plate to be processed into a display screen back plate 7, stamping the rectangular groove 8 on the lower surface of the raw material plate to form a convex structure 9 on the upper surface of the raw material plate, wherein the length of the convex structure 9 is generally equal to that of the rectangular groove 8, meanwhile, extruding the formed convex structure 9 to form a groove 910 on the convex structure 9, and the groove 910 is composed of a slope c911, a plane b912 and a slope d913 which are sequentially connected, wherein the included angle between the slope c911 and the slope d913 is 92-95 degrees, and the distance between the plane b912 and the bottom of the rectangular groove 8 is greater than 0.1 mm;
then, the raw material plate with the rectangular groove 8 and the groove 910 formed therein is bent by 90 ° punching, so that the raw material plate is bent into the bayonet 710 at the rectangular groove 8, and finally the display back plate 7 with the bayonet 710 is formed.
In fig. 4, a shows that a rectangular groove 8 is punched at a preset position on the lower surface of a raw material plate to be processed into the display screen back plate 7, and a convex structure 9 and a groove 910 are formed; in fig. 4, b indicates that the raw material plate formed with the rectangular groove 8 and the recessed groove 910 is bent by 90 ° press so that the raw material plate is bent into the notch 710 at the rectangular groove 8.
Generally, the plane b912 is coplanar with the upper surface of the raw material plate, and the angle between the inclined surface c911 and the inclined surface d913 is preferably 92 °.
The closed bayonet is formed, so that the conditions of light leakage and dust entering do not exist, the gummed paper pasting process is omitted, the production efficiency is greatly improved, and the production cost is reduced.
Example 4
As shown in fig. 1 to 3, a display screen back plate forming mold at least comprises an upper mold 1, a lower mold 2, an upper forming rod 3, a lower forming rod 4, a bending male mold 5 and a female mold 6, wherein the upper mold 1 and the lower mold 2 are arranged in a vertically opposite manner, and the bending male mold 5 and the female mold 6 are respectively arranged on the upper mold 1 and the lower mold 2; the upper forming rod 3 and the lower forming rod 4 are respectively arranged on the upper die 1 and the lower die 2; the lower end surface of the upper molding rod 3 is convex, and at least comprises a slope a310, a plane a320 and a slope b330 which are connected in sequence, the included angle between the slope a310 and the slope b330 is 92 degrees, and the upper end surface of the upper molding rod 3 is a plane; the lower end face of the bending male die 5 is provided with an avoiding opening 510, and the avoiding opening 510 is mainly used for avoiding the deformation of the outer convex structure 9 in the 90-degree bending process.
Example 5
As shown in fig. 1 to fig. 3, this embodiment is further optimized based on embodiment 4, and specifically includes the following steps:
the upper die 1 includes an upper die base 110, an upper padding plate 120, an upper fixing plate 130, an intermediate plate 140, a discharging plate 150, a lift rod a160, a discharging spring 170 and a spring a180, the upper die base 110, the upper padding plate 120 and the upper fixing plate 130 are sequentially fixed from top to bottom, the intermediate plate 140 and the discharging plate 150 are sequentially disposed below the upper fixing plate 130, and the intermediate plate 140 and the discharging plate 150 are fixed. The discharging spring 170 is arranged between the upper fixing plate 130 and the middle plate 140, the upper fixing plate 130 is provided with a through hole a131, the spring a180 is arranged in the through hole a131, the upper end of the ejector rod a160 is connected with the spring a180, the lower end of the ejector rod a160 penetrates through the middle plate 140, the upper end of the upper forming rod 3 is connected with the lower end of the ejector rod a160, the lower end of the upper forming rod 3 penetrates through the discharging plate 150, small clearance fit is adopted between the upper forming rod 3 and the discharging plate 150, the upper forming rod 3 and the discharging plate 150 can freely move in the vertical direction, and the ejector rod a160 and the middle plate 140.
In addition, the upper die holder 110, the upper pad plate 120 and the upper fixing plate 130 are precisely positioned using positioning pins, and the middle plate 140 and the discharge plate 150 are also precisely positioned using positioning pins.
Example 6
As shown in fig. 1 to fig. 3, this embodiment is further optimized based on embodiment 5, and specifically includes the following steps:
the upper end of the bending male die 5 is pressed by the upper fixing plate 130 to be tightly attached to the upper backing plate 120, the lower end of the bending male die 5 sequentially penetrates through the middle plate 140 and the discharging plate 150, the bending male die 5 is in small-gap fit with the upper fixing plate 130, the bending male die 5 is in small-gap fit with the discharging plate 150, and the bending male die 5 is in large-gap fit with the middle plate 140.
Example 7
As shown in fig. 1 to fig. 3, this embodiment is further optimized based on embodiment 5 or 6, and specifically includes the following steps:
the upper die 1 further comprises a bolt a190, and the screw end of the bolt a190 penetrates through the upper die base 110, the upper backing plate 120, the upper fixing plate 130 and the middle plate 140 in sequence and then is in threaded connection with the discharging plate 150.
Example 8
As shown in fig. 1 to 3, this embodiment is further optimized based on any one of embodiments 4 to 7, and specifically includes the following steps:
the lower die 2 comprises a lower die base 210, a lower die plate 220, a lower cushion plate 230, a jacking rod b240, a spring b250 and a floating block 260, the lower die plate 220, the lower cushion plate 230 and the lower die base 210 are sequentially stacked from top to bottom, the lower die plate 220, the lower cushion plate 230 and the lower die base 210 are accurately positioned by pins, a through hole b221 is formed in the lower die plate 220, the floating block 260 is arranged in the through hole b221, the height of the floating block 260 is smaller than or equal to the depth of the through hole b221, the floating block 260 is in small-gap fit with the through hole b221, and the floating block 260 can freely move up and down in the through hole b. A through hole c211 is formed in the lower die holder 210, a spring b250 is arranged in the through hole c211, one end of a push rod b240 is connected with the floating block 260, and the other end of the push rod b240 penetrates through the lower backing plate 230 and then is connected with the spring b 250; one end of the lower forming rod 4 is connected with the lower backing plate 230, the other end of the lower forming rod 4 passes through the floating block 260, and the lower forming rod 4 and the floating block 260 are in small clearance fit.
Example 9
As shown in fig. 1 to fig. 3, this embodiment is further optimized based on embodiment 8, and it specifically includes the following steps:
the lower die 2 further comprises a mandril c270, a spring c280 and a discharging block 290, a through hole d212 is arranged on the lower die base 210, the spring c280 is arranged in the through hole d212, the discharging block 290 is arranged in a forming cavity of the female die 6, the discharging block 290 is in large clearance fit with the female die 6, the discharging block 290 can freely move up and down in the female die 6, two ends of the mandril c270 are connected with the discharging block 290 and the spring c280, and the female die 6 is fixed on the lower die plate 220 by a hanging table.
Principle of operation
The upper die 1 moves downwards, the discharge plate 150 presses the raw material plate, the discharge spring 170 is compressed, the upper die 1 continues to move downwards until the upper die moves downwards to a bottom dead center, and the rectangular groove 8, the convex structure 9 and the groove 910 are punched in the process, wherein the process comprises the following steps:
the lower forming rod 4 punches the lower surface of the raw material plate to form a rectangular groove 8, the rectangular groove 8 punched by the lower surface of the raw material plate enables the upper surface of the raw material plate to form a convex structure 9, the convex structure 9 enters the discharging plate 150, meanwhile, the convex structure 9 is extruded by the upper forming rod 3, a groove 910 is formed on the convex structure, the upper die 1 moves upwards, the rectangular groove 8, the convex structure 9 and the groove 910 are punched, the upper die 1 starts to return, the discharging plate 150 and the middle plate 140 move downwards relative to the upper fixing plate 130 under the thrust action of the discharging spring 170 until the nut of the bolt a190 is hung and prevented from moving, the discharging plate 150 pushes out the semi-finished product stuck on the upper forming rod 3, and discharging of the semi-finished product is completed;
and for the formed semi-finished product, placing the semi-finished product on the female die 6, enabling the upper surface of the semi-finished product to face upwards, enabling the upper die 1 to move downwards, enabling the discharging plate 150 to press the semi-finished product, compressing the discharging spring 170, enabling the upper die 1 to continue to move downwards until the upper die moves downwards to a bottom dead center, and completing 90-degree stamping and bending of the semi-finished product in the process, wherein the process comprises the following steps:
the bending male die 5 is matched with the female die 6 to punch the semi-finished product to realize 90-degree bending to obtain the finished product, in the process, the spring c280 is compressed, the discharging block 290 descends, the upper die 1 ascends, the upper die 1 starts to return, the spring c280 applies force to the ejector rod c270, the ejector rod c270 pushes the discharging block 290 to move upwards, the semi-finished product adhered in the female die 6 is pushed out of the die surface, and the finished product discharging action is finished.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (6)
1. The utility model provides a display screen backplate forming die which characterized in that: the bending die at least comprises an upper die (1), a lower die (2), an upper forming rod (3), a lower forming rod (4), a bending male die (5) and a female die (6), wherein the upper die (1) and the lower die (2) are arranged in a vertically opposite mode, and the bending male die (5) and the female die (6) are respectively arranged on the upper die (1) and the lower die (2); the upper forming rod (3) and the lower forming rod (4) are respectively arranged on the upper die (1) and the lower die (2); the lower end face of the upper forming rod (3) is convex, and the lower end face of the upper forming rod at least comprises a slope a (310), a plane a (320) and a slope b (330) which are sequentially connected, an included angle between the slope a (310) and the slope b (330) is 92-95 degrees, and the upper end face of the upper forming rod (3) is a plane; and the lower end surface of the bending male die (5) is provided with an avoidance opening (510).
2. The display screen backboard forming die of claim 1, wherein: the upper die (1) comprises an upper die base (110), an upper base plate (120), an upper fixing plate (130), a middle plate (140), a discharging plate (150), a mandril a (160), a discharging spring (170) and a spring a (180), wherein the upper die base (110), the upper base plate (120) and the upper fixing plate (130) are sequentially fixed from top to bottom; the middle plate (140) and the discharge plate (150) are sequentially arranged below the upper fixing plate (130), and the middle plate (140) and the discharge plate (150) are fixed; the discharging spring (170) is arranged between the upper fixing plate (130) and the middle plate (140), a through hole a (131) is formed in the upper fixing plate (130), and the spring a (180) is arranged in the through hole a (131); the upper end of the ejector rod a (160) is connected with the spring a (180), the lower end of the ejector rod a (160) penetrates through the middle plate (140), the upper end of the upper forming rod (3) is connected with the lower end of the ejector rod a (160), and the lower end of the upper forming rod (3) penetrates through the discharging plate (150).
3. The display screen backboard forming die of claim 2, wherein: the upper end of the bending male die (5) is pressed to be tightly attached to the upper backing plate (120) through the upper fixing plate (130), and the lower end of the bending male die (5) sequentially penetrates through the middle plate (140) and the discharging plate (150).
4. The display screen backboard forming die of claim 3, wherein: the upper die (1) further comprises a bolt a (190), and the screw end of the bolt a (190) sequentially penetrates through the upper die base (110), the upper base plate (120), the upper fixing plate (130) and the middle plate (140) and then is in threaded connection with the stripper plate (150).
5. The display screen backboard forming die of claim 1, wherein: the lower die (2) comprises a lower die base (210), a lower die plate (220), a lower cushion plate (230), an ejector rod b (240), a spring b (250) and a floating block (260), the lower die plate (220), the lower cushion plate (230) and the lower die base (210) are sequentially stacked from top to bottom, a through hole b (221) is formed in the lower die plate (220), the floating block (260) is arranged in the through hole b (221), and the height of the floating block (260) is smaller than or equal to the depth of the through hole b (221); a through hole c (211) is formed in the lower die holder (210), the spring b (250) is arranged in the through hole c (211), one end of the ejector rod b (240) is connected with the floating block (260), and the other end of the ejector rod b (240) penetrates through the lower backing plate (230) and then is connected with the spring b (250); one end of the lower forming rod (4) is connected with the lower backing plate (230), and the other end of the lower forming rod (4) penetrates through the floating block (260).
6. The display screen backboard forming die of claim 5, wherein: the lower die (2) further comprises a mandril c (270), a spring c (280) and a discharging block (290), a through hole d (212) is formed in the lower die base (210), the spring c (280) is arranged in the through hole d (212), the discharging block (290) is arranged in a forming cavity of the female die (6), and two ends of the mandril c (270) are connected with the discharging block (290) and the spring c (280).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021117930.2U CN212634027U (en) | 2020-06-16 | 2020-06-16 | Display screen backplate forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021117930.2U CN212634027U (en) | 2020-06-16 | 2020-06-16 | Display screen backplate forming die |
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| Publication Number | Publication Date |
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| CN212634027U true CN212634027U (en) | 2021-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021117930.2U Active CN212634027U (en) | 2020-06-16 | 2020-06-16 | Display screen backplate forming die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111558655A (en) * | 2020-06-16 | 2020-08-21 | 怡景(上海)五金制品有限公司 | Display screen back plate forming method and mould thereof |
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2020
- 2020-06-16 CN CN202021117930.2U patent/CN212634027U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111558655A (en) * | 2020-06-16 | 2020-08-21 | 怡景(上海)五金制品有限公司 | Display screen back plate forming method and mould thereof |
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