CN215619625U - LED thick wall light guide precision injection mold - Google Patents
LED thick wall light guide precision injection mold Download PDFInfo
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- CN215619625U CN215619625U CN202121225871.5U CN202121225871U CN215619625U CN 215619625 U CN215619625 U CN 215619625U CN 202121225871 U CN202121225871 U CN 202121225871U CN 215619625 U CN215619625 U CN 215619625U
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Abstract
The utility model provides a precise injection mold for an LED thick-wall light guide piece, and belongs to the technical field of molds. The forming die comprises an upper die plate and a lower die plate, wherein two upper forming surfaces which are symmetrically arranged are arranged on the upper die plate, a forming insert is arranged in the middle of the lower die plate, two side forming surfaces are symmetrically arranged on two sides of the forming insert, and two lower forming surfaces are symmetrically arranged on the lower die plate. Two go up the shaping face, thereby two side shaping faces and two lower shaping faces can make up and form two optical guide products of one shot forming chamber, thereby go up the bar tooth shaping structure on the shaping face and can accord with the bar tooth of required precision at optical guide top one shot forming, sawtooth shaping structure on the shaping face down can accord with the sawtooth of required precision at optical guide bottom one shot forming, connecting hole shaping structure can go out a plurality of connecting holes at the product one shot forming, thereby need not to carry out the secondary operation in later stage, the production efficiency of product is improved.
Description
Technical Field
The utility model belongs to the technical field of molds, and relates to a precise injection mold for an LED thick-wall light guide piece.
Background
Generally, an LED thick-wall light guide is formed by injection molding, and due to the fact that the two ends of the LED thick-wall light guide are provided with sawteeth and strip-shaped teeth, the precision requirement on tooth-shaped parts is high during injection molding, and the strip-shaped teeth and the sawteeth are machined on the light guide in a post-machining mode in the prior art, but the production efficiency of the machining mode is low.
In order to overcome the defects of the prior art, people continuously explore and propose various solutions, for example, a chinese patent discloses a method for processing a tubular photoconductive injection mold insert and an insert manufactured by the method [ application number: 201710824084.4], the method comprises directly processing a single injection mold insert corresponding to the whole length of the tubular light guide tooth part, or processing multiple injection mold insert units section by section to form a set of injection mold inserts corresponding to the whole length of the light guide tooth part, wherein the single injection mold insert or the injection mold insert unit is processed by rough machining and finish machining on a blank, the processing part comprises all surfaces except the lower surface of the insert or the insert unit, and then the insert or the insert unit is separated by line cutting. The tubular light guide injection mold insert is manufactured by the processing method, the main body of the tubular light guide injection mold insert is in a long strip shape, a plurality of bosses are arranged on the front side surface of the main body at intervals along the extension direction of the main body, and each boss is provided with a screw hole which is through from front to back. The utility model can meet the molding quality requirement of the light guide tooth structure, is easy to insert and assemble, has low processing cost, but also has the problem of low production efficiency caused by the fact that strip-shaped teeth and sawteeth cannot be processed on the light guide piece.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provides a precise injection mold for an LED thick-wall light guide.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a precision injection mold of LED thick wall light guide, includes cope match-plate pattern and lower bolster, the cope match-plate pattern on be equipped with the last shaping face that two symmetries set up, lower bolster middle part be equipped with the shaping and insert, the shaping insert bilateral symmetry and be provided with two side shaping faces, the lower bolster on the symmetry be provided with two lower shaping faces, last shaping face, side shaping face and lower shaping face combination form the die cavity, last shaping face on be equipped with bar tooth forming structure, lower shaping face on be equipped with sawtooth forming structure, last shaping face and lower shaping face between still be equipped with connecting hole forming structure.
In foretell LED thick wall light guide piece precision injection mold, bar tooth shaping structure including set up the bar tooth profile surface on last profile surface, bar tooth profile surface slope setting.
In the above precise injection mold for the LED thick-wall light guide, the sawtooth forming structure includes a sawtooth forming surface disposed on the lower forming surface, and the sawtooth forming surface is disposed obliquely.
In the above precise injection mold for the LED thick-wall light guide piece, the connecting hole forming structure comprises a plurality of upper connecting hole forming parts arranged on the side parts of the strip-shaped tooth forming surfaces, and a plurality of lower connecting hole forming parts matched with the upper connecting hole forming parts are arranged on the side parts of the sawtooth forming surfaces.
In the accurate injection mold of foretell LED thick wall light guide, the cope match-plate pattern upside be equipped with the roof, the roof on be equipped with the mouth of moulding plastics, cope match-plate pattern top be equipped with the board of moulding plastics, sawtooth profile setting in the board bottom of moulding plastics, the inboard pipe of moulding plastics that is equipped with vertical setting of moulding plastics, mould plastics the nose and link to each other just with the mouth of moulding plastics the socle portion of moulding plastics link to each other with two molding cavities through the runner structure of moulding plastics.
In the accurate injection mold of foretell LED thick wall light guide, the board both sides of moulding plastics be equipped with two clamp plates through a plurality of screw detachable, the board of moulding plastics pass through the clamp plate and fix on the cope match-plate pattern, the pipe of moulding plastics fix on the board of moulding plastics through a plurality of screw detachable.
In the precise injection mold for the LED thick-wall light guide part, the injection molding runner structure comprises a connecting runner arranged on the molding insert, the cross section of the connecting runner is M-shaped, and two ends of the connecting runner are respectively connected with the two molding cavities.
In the precise injection mold for the LED thick-wall light guide piece, a thimble fixing plate is arranged on the lower side of the lower template, a plurality of vertically arranged ejector rods are fixedly connected to the thimble fixing plate, and the tops of the ejector rods are connected with the bottom of the forming cavity.
In the precise injection mold for the LED thick-wall light guide piece, the thimble fixing plate is further provided with a residual material ejection mechanism for ejecting residual materials in the connecting flow channel.
In the precise injection mold for the LED thick-wall light guide part, the excess material ejection mechanism comprises an excess material ejection rod fixed on the ejector pin fixing plate, and the top of the excess material ejection rod penetrates through the upper template and the forming insert and is connected with the middle part of the connecting flow channel.
Compared with the prior art, the utility model has the advantages that:
1. two go up the shaping face, thereby two side shaping faces and two lower shaping faces can make up and form two optical guide products of one shot forming chamber, thereby go up the bar tooth shaping structure on the shaping face and can accord with the bar tooth of required precision at optical guide top one shot forming, sawtooth shaping structure on the shaping face down can accord with the sawtooth of required precision at optical guide bottom one shot forming, connecting hole shaping structure can go out a plurality of connecting holes at the product one shot forming, thereby need not to carry out the secondary operation in later stage, the production efficiency of product is improved.
2. The bar tooth profile can accord with the bar tooth of required precision at the one-time injection moulding in light guide top to need not to carry out the bar tooth processing in later stage, can effectively improve the production efficiency of product.
3. The sawtooth forming surface can be at the sawtooth that light guide bottom one shot injection moulding accords with the required precision to need not to carry out the sawtooth processing in later stage, can effectively improve the production efficiency of product.
4. The upper connecting hole forming part and the lower connecting hole forming part are matched to form a plurality of connecting holes in the side part of the light guide piece, the later-stage processing of the connecting holes is not needed, and the production efficiency of products can be effectively improved.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
FIG. 1 is a schematic view of the overall structure provided by the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a schematic structural view of the lower template;
fig. 5 is a schematic structural view of the upper plate.
Detailed Description
As shown in fig. 1-5, a precise injection mold for an LED thick-wall light guide piece comprises an upper template 1 and a lower template 2, wherein the upper template 1 is provided with two upper molding surfaces 3 symmetrically arranged, the middle part of the lower template 2 is provided with a molding insert 4, two side molding surfaces 5 are symmetrically arranged on two sides of the molding insert 4, the lower template 2 is provided with two lower molding surfaces 6 symmetrically, the upper molding surface 3, the side molding surfaces 5 and the lower molding surfaces 6 are combined to form a molding cavity 7, the upper molding surface 3 is provided with a strip-shaped tooth molding structure 8, the lower molding surface 6 is provided with a sawtooth molding structure 9, and a connecting hole molding structure 10 is further arranged between the upper molding surface 3 and the lower molding surface 6.
In this embodiment, two go up the shaping face 3, thereby two side shaping face 5 and two lower shaping face 6 can make up and form two shaping chamber 7 and can two optical guide member products of injection moulding once, the bar tooth shaping structure 8 on the last shaping face can accord with the bar tooth of required precision at optical guide member top injection moulding once, sawtooth shaping structure 9 on the lower shaping face 6 can accord with the sawtooth of required precision at optical guide member bottom injection moulding once, connecting hole shaping structure 10 can go out a plurality of connecting holes at one shot forming on the product, thereby need not to carry out the secondary operation in later stage, the production efficiency of product is improved.
Specifically, as shown in fig. 3 and 5, the tooth bar forming structure 8 includes a tooth bar forming surface 11 provided on the upper forming surface 3, and the tooth bar forming surface 11 is disposed obliquely. The bar tooth profile can accord with the bar tooth of required precision at the one-time injection moulding in light guide top to need not to carry out the bar tooth processing in later stage, can effectively improve the production efficiency of product.
Specifically, as shown in fig. 3 and 4, the sawtooth forming structure 9 includes a sawtooth forming surface 12 disposed on the lower forming surface 6, and the sawtooth forming surface 12 is disposed obliquely. The sawtooth forming surface 12 can form the sawtooth meeting the precision requirement at the bottom of the light guide piece through one-time injection molding, so that the sawtooth processing at the later stage is not needed, and the production efficiency of products can be effectively improved.
Specifically, as shown in fig. 4 and 5, the connecting hole forming structure 10 includes a plurality of upper connecting hole forming portions 13 disposed at the side portions of the bar-shaped tooth forming surfaces 11, and a plurality of lower connecting hole forming portions 14 adapted to the upper connecting hole forming portions 13 are disposed at the side portions of the sawtooth forming surfaces 12. The upper connecting hole forming part 13 and the lower connecting hole forming part 14 can be matched to form a plurality of connecting holes on the side part of the light guide piece, the later-stage connecting hole processing is not needed, and the production efficiency of products can be effectively improved.
Specifically, as shown in fig. 2 and 4, a top plate 15 is arranged on the upper side of the upper die plate 1, an injection molding opening 16 is formed in the top plate 15, an injection molding plate 17 is arranged on the top of the upper die plate 1, the sawtooth molding surface 12 is arranged at the bottom of the injection molding plate 17, a vertically arranged injection molding pipe 18 is arranged in the injection molding plate 17, the top of the injection molding pipe 18 is connected with the injection molding opening 16, and the bottom of the injection molding pipe 18 is connected with the two molding cavities 7 through an injection molding runner structure 19. The external compression molding machine of mouth of moulding plastics, the compression molding machine can be intraductal through the mouth of moulding plastics injection molding with the liquid of moulding plastics, and the rethread runner structure of moulding plastics injects two shaping chambeies into simultaneously with the intraductal liquid of moulding plastics, and the runner structure of moulding plastics can improve injection molding efficiency.
Preferably, as shown in fig. 2, two pressure plates 20 are detachably arranged on two sides of the injection molding plate 17 through a plurality of screws, the injection molding plate 17 is fixed on the upper mold plate 1 through the pressure plates 20, and the injection molding pipe 18 is detachably fixed on the injection molding plate 17 through a plurality of screws. The injection molding plate can be fixed on the upper template by the two pressing plates 20, the injection molding plate can be conveniently detached, maintained or cleaned by the pressing plates through the fixation of a plurality of screws, and the injection molding pipe 18 can be conveniently detached, maintained or replaced through the fixation of a plurality of screws.
Specifically, referring to fig. 2 and 4, the injection runner structure 19 includes a connecting runner 21 disposed on the insert 4, the connecting runner 21 has an M-shaped cross section, and two ends of the connecting runner 21 are respectively connected to the two molding cavities 7. The connecting flow channel can simultaneously inject the injection molding liquid injected through the injection molding pipe into the two molding cavities.
Specifically, as shown in fig. 2 and 3, a thimble fixing plate 22 is disposed on the lower side of the lower mold plate 2, a plurality of vertically arranged ejector rods 23 are fixedly connected to the thimble fixing plate 22, and the tops of the ejector rods 23 are connected to the bottom of the molding cavity 7. The thimble fixing plate 22 is externally connected with a driving mechanism, the driving mechanism can drive the thimble fixing plate to lift along the vertical direction, and when demoulding, the thimble fixing plate moves upwards to eject the product through the ejector rod.
Preferably, as shown in fig. 2 and 3, the thimble fixing plate 22 is further provided with a remainder ejection mechanism 24 for ejecting the remainder in the connecting flow channel 21. The excess material ejection mechanism 24 can eject excess material in the connecting flow passage while demolding, so that cleaning can be facilitated.
Specifically, as shown in fig. 2 and 3, the remainder ejection mechanism 24 includes a remainder ejection rod 25 fixed to the ejector fixing plate 22, and the top of the remainder ejection rod 25 penetrates through the upper die plate 1 and the forming insert 4 and is connected to the middle of the connecting runner 21. When the thimble fixing plate 22 moves upwards, the remainder in the connecting flow passage can be ejected out through the remainder ejection rod 25, so that the remainder in the connecting flow passage does not need to be cleaned, and the production efficiency can be improved.
The working principle of the utility model is as follows: the two upper forming surfaces 3, the two side forming surfaces 5 and the two lower forming surfaces 6 can be combined to form two forming cavities 7 so as to form two optical guide part products by one-step injection molding, the strip-shaped tooth forming structure 8 on the upper forming surfaces can form strip-shaped teeth meeting the precision requirement on the top of the optical guide part by one-step injection molding, the sawtooth forming structure 9 on the lower forming surfaces 6 can form sawteeth meeting the precision requirement on the bottom of the optical guide part by one-step injection molding, and the connecting hole forming structure 10 can form a plurality of connecting holes on the products by one-step injection molding, so that secondary processing at the later stage is not needed, and the production efficiency of the products is improved;
the strip-shaped tooth forming surface can be used for injection molding strip-shaped teeth meeting the precision requirement at the top of the light guide piece at one time, so that the processing of the strip-shaped teeth at the later stage is not needed, the production efficiency of a product can be effectively improved, the sawtooth forming surface 12 can be used for injection molding sawteeth meeting the precision requirement at the bottom of the light guide piece at one time, the processing of the sawteeth at the later stage is not needed, the production efficiency of the product can be effectively improved, the upper connecting hole forming part 13 and the lower connecting hole forming part 14 are matched to form a plurality of connecting holes at the side part of the light guide piece, the processing of the connecting holes at the later stage is not needed, and the production efficiency of the product can be effectively improved;
the injection molding opening is externally connected with a compression molding machine, the compression molding machine can inject injection molding liquid into an injection molding pipe through the injection molding opening, and then the injection molding liquid in the injection molding pipe is simultaneously injected into two molding cavities through an injection molding runner structure, the injection molding runner structure can improve the injection molding efficiency, two pressing plates 20 can fix an injection molding plate on an upper template, the pressing plates can be convenient for disassembling, maintaining or cleaning the injection molding plate through fixing of a plurality of screws, the injection molding pipe 18 can be convenient for disassembling, maintaining or replacing through fixing of a plurality of screws, a connecting runner can simultaneously inject the injection molding liquid injected through the injection molding pipe into the two molding cavities, a thimble fixing plate 22 is externally connected with a driving mechanism, the driving mechanism can drive the thimble fixing plate to lift along the vertical direction, when demolding is carried out, the thimble fixing plate moves upwards to eject a product through an ejector rod, and the remainder ejection mechanism 24 can eject the remainder in the connecting runner during demolding so as to be convenient for cleaning, when the thimble fixing plate 22 moves upwards, the remainder in the connecting flow passage can be ejected out through the remainder ejection rod 25, so that the remainder in the connecting flow passage does not need to be cleaned, and the production efficiency can be improved.
The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.
Claims (10)
1. An LED thick-wall light guide precise injection mold comprises an upper template (1) and a lower template (2), it is characterized in that the upper template (1) is provided with two upper forming surfaces (3) which are symmetrically arranged, a forming insert (4) is arranged in the middle of the lower template (2), two side forming surfaces (5) are symmetrically arranged on two sides of the forming insert (4), two lower molding surfaces (6) are symmetrically arranged on the lower template (2), the upper molding surface (3), the side molding surfaces (5) and the lower molding surfaces (6) are combined to form a molding cavity (7), the upper forming surface (3) is provided with a strip-shaped tooth forming structure (8), the lower forming surface (6) is provided with a sawtooth forming structure (9), and a connecting hole forming structure (10) is also arranged between the upper forming surface (3) and the lower forming surface (6).
2. The precision injection mold for LED thick-wall light guides according to claim 1, wherein the tooth forming structure (8) comprises tooth forming surfaces (11) arranged on the upper forming surface (3), and the tooth forming surfaces (11) are arranged obliquely.
3. The precision injection mold for LED thick-wall light guides according to claim 2, wherein the sawtooth forming structure (9) comprises a sawtooth forming surface (12) arranged on the lower forming surface (6), and the sawtooth forming surface (12) is arranged obliquely.
4. The precision injection mold of the LED thick-wall light guide part as claimed in claim 3, wherein the connecting hole forming structure (10) comprises a plurality of upper connecting hole forming parts (13) arranged at the side parts of the strip-shaped tooth forming surfaces (11), and a plurality of lower connecting hole forming parts (14) matched with the upper connecting hole forming parts (13) are arranged at the side parts of the sawtooth forming surfaces (12).
5. The precise injection mold for the LED thick-wall light guide part according to claim 4, wherein a top plate (15) is arranged on the upper side of the upper mold plate (1), an injection port (16) is arranged on the top plate (15), an injection molding plate (17) is arranged on the top of the upper mold plate (1), the sawtooth molding surface (12) is arranged at the bottom of the injection molding plate (17), a vertically arranged injection molding pipe (18) is arranged in the injection molding plate (17), the top of the injection molding pipe (18) is connected with the injection port (16), and the bottom of the injection molding pipe (18) is connected with the two molding cavities (7) through an injection molding runner structure (19).
6. The precision injection mold for the LED thick-wall light guide part according to claim 5, wherein two pressure plates (20) are detachably arranged on two sides of the injection molding plate (17) through a plurality of screws, the injection molding plate (17) is fixed on the upper mold plate (1) through the pressure plates (20), and the injection molding pipe (18) is detachably fixed on the injection molding plate (17) through a plurality of screws.
7. The precision injection mold for the LED thick-wall light guide part according to claim 5, wherein the injection runner structure (19) comprises a connecting runner (21) arranged on the molding insert (4), the cross section of the connecting runner (21) is M-shaped, and two ends of the connecting runner (21) are respectively connected with the two molding cavities (7).
8. The precision injection mold for the LED thick-wall light guide piece according to claim 7, wherein a thimble fixing plate (22) is arranged on the lower side of the lower template (2), a plurality of vertically arranged ejector rods (23) are fixedly connected to the thimble fixing plate (22), and the tops of the ejector rods (23) are connected with the bottom of the molding cavity (7).
9. The precision injection mold for the LED thick-wall light guide piece according to claim 8, wherein the thimble fixing plate (22) is further provided with a surplus material ejection mechanism (24) for ejecting surplus material in the connecting flow channel (21).
10. The precision injection mold for the LED thick-wall light guide piece according to claim 9, wherein the excess material ejection mechanism (24) comprises an excess material ejection rod (25) fixed on the ejector pin fixing plate (22), and the top of the excess material ejection rod (25) penetrates through the upper mold plate (1) and the forming insert (4) and is connected with the middle part of the connecting runner (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121225871.5U CN215619625U (en) | 2021-06-02 | 2021-06-02 | LED thick wall light guide precision injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121225871.5U CN215619625U (en) | 2021-06-02 | 2021-06-02 | LED thick wall light guide precision injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215619625U true CN215619625U (en) | 2022-01-25 |
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ID=79940953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121225871.5U Active CN215619625U (en) | 2021-06-02 | 2021-06-02 | LED thick wall light guide precision injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215619625U (en) |
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2021
- 2021-06-02 CN CN202121225871.5U patent/CN215619625U/en active Active
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