CN220373789U - Light guide plate forming die - Google Patents
Light guide plate forming die Download PDFInfo
- Publication number
- CN220373789U CN220373789U CN202321806321.1U CN202321806321U CN220373789U CN 220373789 U CN220373789 U CN 220373789U CN 202321806321 U CN202321806321 U CN 202321806321U CN 220373789 U CN220373789 U CN 220373789U
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- rack
- light guide
- guide plate
- die holder
- die
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- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010147 laser engraving Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a light guide plate forming die, comprising: the die comprises a fixed die holder and a movable die holder, wherein the opposite sides of the fixed die holder and the movable die holder are respectively provided with a die core, a hot runner communicated with the die cores is arranged in the center of the movable die holder, a cavity for forming a light guide plate is formed between the two die cores, the lower surface of the cavity is an inclined surface, a second rack is arranged on one side of the movable die holder in a vertical mode, a first rack is arranged below the fixed die holder in a horizontal mode, a pushing block for pushing the light guide plate is arranged above the first rack and on one side of the fixed die holder, the pushing block is fixedly connected with the first rack through a bent first connecting rod, and the first rack is connected with the second rack through a transmission mechanism, so that the second rack is upwards moved to drive the pushing block to push the light guide plate. The light guide plate forming die shortens the stay time of the light guide plate in the die and improves the continuity of the processing process, thereby improving the overall working efficiency.
Description
Technical Field
The utility model relates to the technical field of light guide plate production, in particular to a light guide plate forming die.
Background
The light guide plate is made of an optical acrylic/PC plate, then a high-tech material with an extremely high refractive index and no light absorption is used, light guide points are printed on the bottom surface of the optical acrylic plate by using the technologies of laser engraving, V-shaped cross grid engraving, UV screen printing and the like, the optical acrylic plate is used for absorbing the light emitted from the lamp to stay on the surface of the optical acrylic plate, and when the light guide plate is produced, a die is required to be used for production and processing, and the production efficiency of the light guide plate is improved through the rapid injection molding of the die.
In the prior art, a light guide plate forming die for injection molding generally comprises a fixed die, a movable die and a die core, wherein a gate for feeding glue stock is arranged in the fixed die, the gate is communicated with a nozzle of an injection machine, the die core is provided with a cavity for forming the light guide plate, and when the fixed die and the movable die are matched, the cavity is communicated with the gate and is in a closed state, so that injection molding of the light guide plate is completed.
In the prior art, the temperature of the light guide plate after molding is higher, and the light guide plate needs to be taken out after being cooled, but the light guide plate can occupy the service time of the mold after being cooled in the mold, so that the service time of the mold is shortened, and the overall working efficiency is reduced.
Disclosure of Invention
The utility model aims to provide a light guide plate forming die which shortens the residence time of a light guide plate in the die and improves the continuity of the processing process, thereby improving the overall working efficiency.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a light guide plate molding die, comprising: the die comprises a fixed die holder and a movable die holder, wherein the opposite sides of the fixed die holder and the movable die holder are respectively provided with a die core, a hot runner communicated with the die cores is arranged in the center of the movable die holder, a die cavity for forming a light guide plate is formed between the two die cores, and the lower surface of the die cavity is an inclined surface;
one side of the movable die holder is provided with a second rack in a vertical mode, a first rack is arranged below the fixed die holder in a horizontal mode, a pushing block for pushing the light guide plate is arranged above the first rack and on one side of the fixed die holder, the pushing block is fixedly connected with the first rack through a bent first connecting rod, and the first rack is connected with the second rack through a transmission mechanism.
The further improved scheme in the technical scheme is as follows:
1. in the above scheme, drive mechanism includes first gear, first transmission shaft and first bearing frame, first bearing frame fixed mounting is on the lateral wall of die holder, and the both ends cover is equipped with the first transmission shaft of first gear with the bearing frame rotates to be connected.
2. In the scheme, two mounting plates are arranged at one side of the second rack opposite to the first gear at intervals, a set of sliding rod provided with a sliding block is fixedly arranged between the two mounting plates, and the sliding block is fixedly connected with the movable die holder through a second connecting rod.
3. In the above scheme, the cover half seat is fixedly arranged at the top of a bottom plate, and a plurality of support rods are arranged between the cover half seat and the bottom plate.
4. In the above scheme, be located the bottom of cover half seat is provided with a support frame, first rack setting is on this support frame.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the utility model relates to a light guide plate forming die, which is characterized in that a second rack is vertically arranged on one side of a movable die holder, a first rack is horizontally arranged below a fixed die holder, a push block for pushing a light guide plate is arranged above the first rack and on one side of the fixed die holder, the push block is fixedly connected with the first rack through a bent first connecting rod, the first rack is connected with the second rack through a transmission mechanism, the second rack is enabled to move upwards and simultaneously drive the push block to push the light guide plate, and a transmission structure is arranged between the first rack and the second rack in a process of opening the movable die holder and the fixed die holder, so that the second rack moves along a horizontal straight line close to the fixed die holder, the push block is driven to push the formed light guide plate on the upper surface of the fixed die holder, the stay time of the light guide plate in the die is shortened, the continuity of the processing process is improved, and the whole working efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of a mold for forming a light guide plate according to the present utility model;
FIG. 2 is a partial sectional view of a light guide plate forming mold according to the present utility model;
FIG. 3 is an enlarged view of the utility model at A of FIG. 2;
FIG. 4 is a schematic diagram of a partial structure of a mold for forming a light guide plate according to the present utility model;
fig. 5 is a schematic diagram showing a partial structure of a mold for forming a light guide plate according to the present utility model.
In the above figures: 1. a movable die holder; 2. a pushing block; 3. a first bearing seat; 4 a first gear; 5. a first connecting rod; 6. a first rack; 7. a first drive shaft; 8. a mold core; 9. a cavity; 10. a second rack; 11. a bottom plate; 12. a slide block; 13. an electric cylinder; 14. a second connecting rod; 15. a fixed die holder; 16. a hot runner; 17. a light guide plate; 18. a mounting plate; 19. a slide bar; 20. a support frame; 21. and (5) supporting the rod.
Description of the embodiments
The present patent will be further understood by the specific examples given below, which are not intended to be limiting.
Example 1: a light guide plate molding die, comprising: the fixed die holder 15 and the movable die holder 1, wherein the opposite sides of the fixed die holder 15 and the movable die holder 1 are respectively provided with a die core 8, a hot runner 16 communicated with the die cores 8 is arranged in the central position of the movable die holder 1, a cavity 9 for forming a light guide plate 17 is jointly formed between the two die cores 8, the lower surface of the cavity 9 is an inclined plane, materials are injected into the cavity formed by the two die cores from the hot runner, and the light guide plate is to be formed;
a second rack 10 is vertically arranged on one side of the movable die holder 1, a first rack 6 is horizontally arranged below the fixed die holder 15, a push block 2 for pushing the light guide plate 17 is arranged above the first rack 6 and on one side of the fixed die holder 15, the push block 2 is fixedly connected with the first rack 6 through a bent first connecting rod 5, and the first rack 6 is connected with the second rack 10 through a transmission mechanism, so that the second rack 10 moves upwards and drives the push block 2 to push the light guide plate 17 to move out of the die core;
the movable die holder pulls the sliding block upwards through the second connecting rod to slide on the surface of the sliding rod, the top of the sliding block contacts with the bottom of the mounting plate positioned above, the movable die holder pulls the second rack upwards through pulling the sliding block, and the second rack applies acting force to one of the first gears in the upward moving process;
the transmission mechanism comprises a first gear 4, a first transmission shaft 7 and a first bearing seat 3, wherein the first bearing seat 3 is fixedly arranged on the side wall of a fixed die holder 15, and the first transmission shaft 7 with the first gear 4 sleeved at two ends is rotationally connected with the bearing seat 3.
The first gear rotates in the first bearing seat through the first transmission shaft after being stressed, the first transmission shaft drives the other first gear to apply acting force to the first rack, the first rack slides on the support frame after being stressed, along with the movement of the first rack, the first rack drives the first connecting rod to move when applying external force to one of the second gears, the first connecting rod pushes the push block, the bottom of the push block slides along the top of the fixed die seat, and then the push block pushes the light guide plate, and then the light guide plate is moved out of the die.
Two mounting plates 18 are arranged at intervals on one side of the second rack 10 opposite to the first gear 4, a set of sliding rod 19 provided with a sliding block 12 is fixedly arranged between the two mounting plates 18, and the sliding block 12 is fixedly connected with the movable die holder 1 through a second connecting rod 14.
A supporting frame 20 is disposed at the bottom of the fixed mold base 15, and the first rack 6 is disposed on the supporting frame 20.
An electric cylinder 13 is arranged between the fixed die holder 15 and the movable die holder 1, the movable end of the electric cylinder 13 is fixedly connected with the movable die holder 1, the two electric cylinders are started, and the movable end of the electric cylinder pushes the movable die holder upwards.
The number of the electric cylinders 13 is two, and the two electric cylinders 13 are symmetrically arranged.
Example 2: a light guide plate molding die, comprising: the fixed die holder 15 and the movable die holder 1, wherein the opposite sides of the fixed die holder 15 and the movable die holder 1 are respectively provided with a die core 8, the center of the movable die holder 1 is provided with a hot runner 16 communicated with the die cores 8, a cavity 9 for forming a light guide plate 17 is jointly formed between the two die cores 8, and the lower surface of the cavity 9 is an inclined plane;
a second rack 10 is vertically arranged on one side of the movable die holder 1, a first rack 6 is horizontally arranged below the fixed die holder 15, a push block 2 for pushing the light guide plate 17 is arranged above the first rack 6 and on one side of the fixed die holder 15, the push block 2 is fixedly connected with the first rack 6 through a bent first connecting rod 5, and the first rack 6 is connected with the second rack 10 through a transmission mechanism, so that the second rack 10 moves upwards and simultaneously drives the push block 2 to push the light guide plate 17;
in the process of opening the movable die holder and the fixed die holder, the first rack moves upwards along with the movable die holder, and a transmission structure is arranged between the first rack and the second rack, so that the second rack moves along a horizontal straight line close to the fixed die holder, and the push block is driven to push out the formed light guide plate on the upper surface of the fixed die holder, so that the stay time of the light guide plate in the die is shortened, the continuity of the processing process is improved, and the overall working efficiency is improved.
The transmission mechanism comprises a first gear 4, a first transmission shaft 7 and a first bearing seat 3, wherein the first bearing seat 3 is fixedly arranged on the side wall of a fixed die holder 15, and the first transmission shaft 7 with the first gear 4 sleeved at two ends is rotationally connected with the bearing seat 3.
Two mounting plates 18 are arranged at intervals on one side of the second rack 10 opposite to the first gear 4, a set of sliding rod 19 provided with a sliding block 12 is fixedly arranged between the two mounting plates 18, and the sliding block 12 is fixedly connected with the movable die holder 1 through a second connecting rod 14.
The fixed mold seat 15 is fixedly installed on the top of a bottom plate 11, and a plurality of support rods 21 are disposed between the fixed mold seat 15 and the bottom plate 11.
A supporting frame 20 is disposed at the bottom of the fixed mold base 15, and the first rack 6 is disposed on the supporting frame 20.
The support bars 21 are provided at four corners of the stationary mold base 15, respectively.
The working principle is as follows:
during production, materials are injected into cavities formed in the two mold cores from the hot runner, after the light guide plate is molded, two electric cylinders are started, the movable ends of the electric cylinders push the movable mold bases upwards, the movable mold bases upwards pull the sliding blocks to slide on the surfaces of the sliding rods through the second connecting rods, the movable mold bases contact the tops of the sliding blocks with the bottoms of the mounting plates positioned above, the movable mold bases upwards pull the second racks through pulling the sliding blocks, and the second racks drive the first gears to rotate in the upward moving process;
the first transmission shaft is driven to rotate in the first bearing seat after being stressed by the first gear, the first transmission shaft is further convenient to drive the other first gear to apply acting force to the first rack, the first rack slides on the support frame after being stressed by the first rack, the first rack drives the first connecting rod to move when applying external force to one of the second gears along with the movement of the first rack, the first connecting rod pushes the pushing block, the bottom of the pushing block slides along the top of the fixed die seat, the pushing block is further convenient to push the light guide plate, and the light guide plate is further conveniently moved out of the die.
When the light guide plate forming die is adopted, the first rack moves upwards along with the movable die holder through the opening process of the movable die holder and the fixed die holder, and the transmission structure is arranged between the first rack and the second rack, so that the second rack moves along a horizontal straight line close to the fixed die holder, and the push block is driven to push out the formed light guide plate on the upper surface of the fixed die holder, so that the stay time of the light guide plate in the die is shortened, the continuity of the processing process is improved, and the overall working efficiency is improved.
The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.
Claims (5)
1. A light guide plate molding die, comprising: the die comprises a fixed die holder (15) and a movable die holder (1), wherein the opposite sides of the fixed die holder (15) and the movable die holder (1) are respectively provided with a die core (8), a hot runner (16) communicated with the die cores (8) is arranged in the center of the movable die holder (1), a die cavity (9) for forming a light guide plate (17) is formed between the two die cores (8), and the lower surface of the die cavity (9) is an inclined surface;
the method is characterized in that: one side of the movable die holder (1) is provided with a second rack (10) in a vertical mode, the movable die holder is positioned below the fixed die holder (15) and is provided with a first rack (6) in a horizontal mode, a push block (2) for pushing the light guide plate (17) is arranged above the first rack (6) and on one side of the fixed die holder (15), the push block (2) is fixedly connected with the first rack (6) through a bent first connecting rod (5), and the first rack (6) is connected with the second rack (10) through a transmission mechanism.
2. The light guide plate molding die according to claim 1, wherein: the transmission mechanism comprises a first gear (4), a first transmission shaft (7) and a first bearing seat (3), wherein the first bearing seat (3) is fixedly arranged on the side wall of a fixed die holder (15), and the first transmission shaft (7) with the first gear (4) sleeved at two ends is rotationally connected with the bearing seat (3).
3. The light guide plate molding die according to claim 2, wherein: two mounting plates (18) are arranged at one side of the second rack (10) opposite to the first gear (4) at intervals, a set of sliding rods (19) provided with sliding blocks (12) are fixedly arranged between the two mounting plates (18), and the sliding blocks (12) are fixedly connected with the movable die holder (1) through a second connecting rod (14).
4. The light guide plate molding die according to claim 1, wherein: the fixed die seat (15) is fixedly arranged at the top of a bottom plate (11), and a plurality of supporting rods (21) are arranged between the fixed die seat (15) and the bottom plate (11).
5. The light guide plate molding die according to claim 1, wherein: a support frame (20) is arranged at the bottom of the fixed die seat (15), and the first rack (6) is arranged on the support frame (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321806321.1U CN220373789U (en) | 2023-07-11 | 2023-07-11 | Light guide plate forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321806321.1U CN220373789U (en) | 2023-07-11 | 2023-07-11 | Light guide plate forming die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220373789U true CN220373789U (en) | 2024-01-23 |
Family
ID=89560233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321806321.1U Active CN220373789U (en) | 2023-07-11 | 2023-07-11 | Light guide plate forming die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220373789U (en) |
-
2023
- 2023-07-11 CN CN202321806321.1U patent/CN220373789U/en active Active
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