CN214324030U

CN214324030U - Mould benevolence location structure of light guide plate hydro-cylinder compression mould

Info

Publication number: CN214324030U
Application number: CN202120037859.5U
Authority: CN
Inventors: 廖均韬; 阮绪红; 张晓睿; 徐大良; 程飞
Original assignee: Dongguan Yuanli Electronic Technology Co ltd
Current assignee: Dongguan Yuanli Electronic Technology Co ltd
Priority date: 2021-01-07
Filing date: 2021-01-07
Publication date: 2021-10-01
Anticipated expiration: 2031-01-07

Abstract

The utility model relates to the technical field of mold, more specifically say, it relates to a mould benevolence location structure of light guide plate hydro-cylinder compression mould, and its technical scheme main points are: including the mould embryo, support tight piece and piece together, the mould embryo is including last mould subassembly and lower mould subassembly, it includes the upper die base and goes up the mould benevolence to go up the mould subassembly, it installs in the upper die base bottom to go up the mould benevolence, lower mould subassembly includes die holder and lower mould benevolence, the lower mould benevolence is installed at the die holder top, it is just right and be formed with the die cavity to go up mould benevolence and lower mould benevolence, the last mounting groove that supplies the installation of last mould benevolence is seted up to the upper die base bottom to last die holder bottom, support tight piece and support tight mould benevolence, the lower mounting groove that supplies the installation of lower mould benevolence is seted up at the die holder top to piece together, piece together and support tight lower mould benevolence, the utility model discloses a mould benevolence location structure of light guide plate hydro-cylinder compression mould can improve the accuracy of mould benevolence location to reduce the dislocation of mould benevolence.

Description

Mould benevolence location structure of light guide plate hydro-cylinder compression mould

Technical Field

The utility model belongs to the technical field of the mould technique and specifically relates to a mould benevolence location structure of light guide plate hydro-cylinder compression mould.

Background

The light guide plate is produced to match with a liquid crystal display panel, and the liquid crystal display requires a backlight module to display the brightness of the liquid crystal display panel due to the characteristic of non-self-luminescence. At present, with the expansion of the application range, the light guide plate is applied to various display fields such as a display screen, an instrument panel and the like.

The light guide plate is usually injection molded, and the injection molding of the light guide plate is performed by filling a molten molding material into a closed mold in a high pressure manner, so that the light guide plate and the microstructure are simultaneously completed in the injection molding. The oil cylinder compression mold has great advantages in molding and injection molding, and the oil cylinder compression mold compresses a cavity in the mold and extrudes gas during injection molding of the mold, so that a product is formed after injection molding of the mold.

In view of the above-mentioned related technologies, the inventor believes that a mold positioning structure is needed to improve the positioning accuracy of the mold, so as to reduce the dislocation of the mold, thereby improving the molding quality of the light guide plate.

SUMMERY OF THE UTILITY MODEL

In order to improve the accuracy of mould benevolence location, reduce the dislocation of mould benevolence, this application provides a mould benevolence location structure of light guide plate hydro-cylinder compression mould.

The application provides a pair of mould benevolence location structure of light guide plate hydro-cylinder compression mould adopts following technical scheme:

a mould core positioning structure of a light guide plate oil cylinder compression mould comprises a mould blank, a propping block and splicing blocks;

the die blank comprises an upper die assembly and a lower die assembly, the upper die assembly comprises an upper die base and an upper die core, the upper die core is installed at the bottom of the upper die base, the lower die assembly comprises a lower die base and a lower die core, the lower die core is installed at the top of the lower die base, and a die cavity is formed in the upper die core and the lower die core in a manner of being opposite to each other;

the bottom of the upper die base is provided with an upper mounting groove for mounting the upper die core, the abutting block is embedded at the bottom of the upper die base, and the abutting block abuts against the upper die core;

the top of the lower die base is provided with a lower mounting groove for mounting the lower die core, the splicing blocks are embedded at the top of the lower die base and abut against the lower die core.

By adopting the technical scheme, the upper mold core is tightly abutted by the abutting blocks and the lower mold core is tightly abutted by the splicing blocks, so that the frame-opening type positioning is formed in the mold, the positioning accuracy of the mold core is improved, and the dislocation of the mold core is reduced.

Preferably, the top of the lower die holder is further embedded with a fixing block, and the fixing block abuts against the splicing blocks.

Through adopting above-mentioned technical scheme, through the fixed block to piecing together the piece to support tightly, improved to piece together the piece and inlayed the stability of establishing at the lower die base top to improve the piece to the tight stability of supporting of lower mould benevolence, make the lower mould benevolence location more stable.

Preferably, the number of the segments is multiple, the segments are arranged around the lower die core, the number of the fixing blocks is consistent with that of the segments, and the fixing blocks respectively and correspondingly abut against the segments.

By adopting the technical scheme, the positioning stability of the splicing blocks and the fixing blocks on the lower die core is further improved by increasing the number of the splicing blocks and the fixing blocks.

Preferably, the abutting block is trapezoidal, and the thin end of the abutting block is an embedded end.

Through adopting above-mentioned technical scheme, be trapezoidal support tight piece and easily imbed the upper die base top to easily support tightly the mould benevolence.

Preferably, the lower die assembly further comprises a base and a lower die cushion block, the lower die cushion block is arranged at the top of the base, and the lower die base is arranged at the top of the lower die cushion block;

the lower die base comprises a mounting base and a base, the mounting base is positioned at the top of the base, and the lower die core is mounted at the top of the mounting base;

the top of lower mould cushion is provided with the guide post, upper die base and mount pad all are provided with the uide bushing, the guide post passes simultaneously the upper die base with the uide bushing of mount pad, the guide post with the uide bushing corresponds the setting.

Through adopting above-mentioned technical scheme, the guide post slides with the uide bushing and cooperates to the compound die of going up mould benevolence and lower mould benevolence is led.

Preferably, the lower end part of the guide post is sleeved with a limiting block, and the limiting block is fixed at the top of the lower die cushion block.

Through adopting above-mentioned technical scheme, the stopper can carry out further spacing to the guide post to further improve the compound die stability of upper mould benevolence and lower mould benevolence.

Preferably, the top of base is provided with thimble board and lower thimble board, lower thimble board is located the base, it is located to go up the thimble board on the thimble board down, it is provided with the thimble to go up the thimble board top, the thimble runs through to the die cavity.

By adopting the technical scheme, after the part is subjected to injection molding, the part is ejected out of the cavity through the movement of the ejector pin.

Preferably, the thimble includes ejecting portion and sliding part, the one end of sliding part is connected go up the thimble board, sliding part slide in the lower mould subassembly, ejecting portion connects sliding part is kept away from the one end of going up the thimble board, ejecting portion is used for contradicting and ejecting the finished piece in the die cavity.

By adopting the technical scheme, the upper ejector plate drives the sliding part to vertically slide when moving, so that the ejector part is driven to eject the product in the cavity, and the ejection process of the ejector pin to the product in the cavity is realized.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the upper die core is abutted by the abutting blocks and the lower die core is abutted by the splicing blocks, so that open-frame positioning is formed in the die, the accuracy of die core positioning is improved, and the dislocation of the die core is reduced;

2. the stability of the splicing blocks embedded in the top of the lower die base is improved through the abutting of the fixing blocks on the splicing blocks, so that the abutting stability of the splicing blocks on the lower die core is improved, and the lower die core is positioned more stably;

3. through increasing the quantity of piecing together piece and fixed block, further piece together the piece and the fixed block is to the positional stability of lower mould benevolence.

Drawings

FIG. 1 is a schematic diagram of a forward structure of a compression mold of a light guide plate cylinder in an embodiment of the present application;

FIG. 2 is a schematic side view of a compression mold of a light guide plate cylinder according to an embodiment of the present disclosure;

FIG. 3 is a schematic top view of a base in an embodiment of the present application;

fig. 4 is a schematic view of a partial structure of a compression mold for a light guide plate cylinder in an embodiment of the present application.

Description of reference numerals: 1. molding blanks; 21. an upper die holder; 211. injection molding holes; 212. a hot runner; 213. mounting a mounting groove; 22. an upper die core; 31. a base; 32. a lower die cushion block; 33. a lower die holder; 331. a mounting seat; 332. a base; 333. a lower mounting groove; 34. a lower die core; 4. an oil cylinder; 41. an oil inlet hole of an oil way; 411. an oil inlet channel; 42. an oil outlet hole of the oil way; 421. an oil outlet channel; 51. a propping block; 511. abutting against the groove; 512. a first bolt; 52. splicing; 521. splicing grooves; 522. a second bolt; 53. a fixed block; 531. fixing grooves; 532. a third bolt; 533. tightly abutting against the bolt; 61. a guide post; 62. a guide sleeve; 63. a limiting block; 71. an upper ejector plate; 72. a lower ejector plate; 73. a thimble; 731. a push-out part; 732. a sliding part.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses light guide plate hydro-cylinder compression mould. Referring to fig. 1, the light guide plate cylinder compression mold comprises a mold blank 1 and a cylinder 4, wherein the cylinder 4 is arranged in the mold blank 1, an injection molding hole 211 and a hot runner 212 are formed in the mold blank 1, and a molten molding material is injected into the mold blank 1 through the injection molding hole 211 and the hot runner 212.

Referring to fig. 1, a mold blank 1 includes an upper mold assembly and a lower mold assembly, which are arranged up and down, respectively. The upper mold assembly comprises an upper mold base 21 and an upper mold core 22, the upper mold core 22 is installed at the bottom of the upper mold base 21, in addition, the injection molding hole 211 is specifically formed in the top of the upper mold base 21, the hot runner 212 penetrates through the upper mold base 21 and the upper mold core 22, and the injection molding hole 211 is communicated with the hot runner 212, so that the molten molding material is left at the bottom of the upper mold core 22 through the injection molding hole 211 and the hot runner 212. The lower die assembly comprises a base 31, a lower die cushion block 32, a lower die seat 33 and a lower die core block 34, the lower die cushion block 32 is arranged at the top of the base 31, the lower die seat 33 is arranged at the top of the lower die cushion block 32, the lower die core block 34 is arranged at the top of the lower die seat 33, and the base 31 and the lower die cushion block 32 support the lower die seat 33. The upper mold core 22 faces the lower mold core 34 and forms a cavity, and the shape of the cavity corresponds to the shape of the light guide plate, so that the light guide plate is molded in the cavity between the upper mold core 22 and the lower mold core 34. Hydro-cylinder 4 then sets up in the lower die assembly, and hydro-cylinder 4 controls the compression of die cavity through flexible, and at this moment, through hydro-cylinder 4's control in the forming process, the die cavity in the compression mould simultaneously in the mould and extrude gas to realize hydro-cylinder 4 compression moulding, and at this in-process, because hydro-cylinder 4 sets up inside the mould embryo 1, consequently the difficult condition that causes the jar that explodes, thereby reduce the risk of exploding the jar.

Referring to fig. 1, the lower die holder 33 includes a mounting seat 331 and a base 332, the mounting seat 331 and the base 332 are stacked, specifically, the mounting seat 331 is located on the top of the base 332, and the lower die core 34 is mounted on the top of the mounting seat 331. In addition, the oil cylinder 4 is fixed on the top of the base 31, and the telescopic rod of the oil cylinder 4 passes through the base 332 and then is connected with the mounting seat 331, so that the oil cylinder 4 controls the lower die core 34 by controlling the mounting seat 331, thereby controlling the compression of the die cavity.

Referring to fig. 1, the number of the oil cylinders 4 is multiple, in this embodiment, the number of the oil cylinders 4 is six, six oil cylinders 4 are distributed on the top of the base 31 in a rectangular array, that is, two rows and three columns are formed, and the arrangement of six air cylinders makes the compression of the cavity more stable. Further, the oil cylinder 4 is provided with an oil inlet hole 41 and an oil outlet hole 42, the oil inlet hole 41 and the oil outlet hole 42 are both circular holes, and the number of the oil inlet holes 41 and the oil outlet holes 42 of each oil cylinder 4 is one. Correspondingly, the base 31 has been seted up oil feed passageway 411 and oil outlet passageway 421, oil feed passageway 411 and oil outlet passageway 421 are circular passageway, oil feed passageway 411 and oil circuit inlet port 41 intercommunication, oil outlet passageway 421 and oil circuit outlet port 42 intercommunication, oil feed passageway 411 and oil circuit inlet port 41 are used for the oil feed, oil outlet passageway 421 and oil circuit outlet port 42 are used for producing oil, the oil feed through oil feed passageway 411 and oil circuit inlet port 41 and the oil outlet through oil outlet passageway 421 and the oil outlet port, make hydro-cylinder 4 in the mould embryo 1 realize flexible, control in order to the compression of die cavity.

Referring to fig. 1, the bottom of the upper mold base 21 is provided with an upper mounting groove 213 for mounting the upper mold core 22, the top of the lower mold base 33 is provided with a lower mounting groove 333 for mounting the lower mold core 34, and specifically, the lower mounting groove is provided at the top of the mounting base 331. Inserts are inlaid at the bottom of the upper die base 21 and the top of the lower die base 33, the inserts comprise abutting blocks 51, split blocks 52 and fixing blocks 53, wherein the abutting blocks 51 are inlaid at the top of the upper die base 21, the abutting blocks 51 abut against the upper die core 22, the split blocks 52 are inlaid at the top of the lower die base 33, the split blocks 52 abut against the lower die core 34, at the moment, the abutting blocks 51 abut against the upper die core 22 and the split blocks 52 abut against the lower die core 34, so that frame-opening type positioning is formed in the die, the accuracy of die core positioning is improved, and dislocation of the die core is reduced.

Further, referring to fig. 1, the fixing blocks 53 are embedded in the top of the lower die holder 33, the fixing blocks 53 tightly abut against the split blocks 52, and the stability of the split blocks 52 embedded in the top of the lower die holder 33 is improved by tightly abutting the split blocks 52 through the fixing blocks 53, so that the abutting stability of the split blocks 52 against the lower die core 34 is improved, and the lower die core 34 is positioned more stably. Moreover, a plurality of the split blocks 52 are arranged, the split blocks 52 are arranged around the lower die core 34, the number of the fixing blocks 53 is consistent with that of the split blocks 52, the fixing blocks 53 are respectively abutted against the split blocks 52 in a one-to-one correspondence mode, and the positioning stability of the split blocks 52 and the fixing blocks 53 on the lower die core 34 is further improved by increasing the number of the split blocks 52 and the fixing blocks 53.

Referring to fig. 1, in order to improve the convenience of embedding the insert in the mold, the top of the upper mold base 21 is provided with a tightening groove 511, the tightening groove 511 is used for integrally embedding a tightening block 51, a first connecting piece is connected between the tightening block 51 and the tightening groove 511, and the tightening block 51 is easily embedded in the bottom of the upper mold base 21 through the tightening groove 511 and the first connecting piece. The top of lower die holder 33 has seted up concatenation groove 521, and concatenation groove 521 supplies the one end embedding of piecing 52, is connected with the second connecting piece between piecing 52 and the concatenation groove 521, and piecing 52 is easily inlayed at the lower die holder 33 top through concatenation groove 521 and second connecting piece. Fixed slot 531 has still been seted up at the top of die holder 33, and fixed slot 531 supplies the one end embedding of fixed block 53, is connected with the third connecting piece between fixed block 53 and the fixed slot 531, and fixed block 53 passes through fixed slot 531 and the easy inlaying at die holder 33 top of third connecting piece to improve the mosaic convenience of mold insert in the mould.

Referring to fig. 1, the first connecting member is a first bolt 512, the first bolt 512 penetrates through the abutting block 51 and penetrates through the bottom of the abutting groove 511, and after the abutting block 51 is embedded in the abutting groove 511, the first bolt 512 enables the abutting block 51 to stably maintain an embedded state. The second connector is a second bolt 522, the second bolt 522 penetrates through the tile 52 and is arranged at the bottom of the splicing groove 521, and after the tile 52 is spliced in the splicing groove 521, the second bolt 522 enables the tile 52 to stably maintain a splicing state. The third connecting member is a third bolt 532, the third bolt 532 penetrates through the fixed block 53 and penetrates through the bottom of the fixing groove 531, and after the fixed block 53 is embedded in the fixing groove 531, the third bolt 532 enables the fixed block 53 to stably maintain an embedded state, so that the connecting function of the first connecting member, the second connecting member and the third connecting member is realized. Further, the first bolt 512, the second bolt 522 and the third bolt 532 are vertical countersunk bolts, so that the end faces of the abutting block 51, the split block 52 and the fixing block 53 can keep good flatness, and the upper mold core 22 and the lower mold core 34 between the upper mold base 21 and the lower mold base 33 can be conveniently closed.

Referring to fig. 1, a fastening bolt 533 is inserted into an end of the fixing block 53 away from the tile 52, the fastening bolt 533 penetrates through the fixing block 53, an end of the fastening bolt 533 close to the tile 52 abuts against the tile 52, and the tile 52 embedded in the splicing groove 521 can be further fixed by the fastening bolt 533, so that the tile 52 can more stably exert its function. The abutting bolt 533 is a horizontal countersunk bolt, so that the end of the fixing block 53 away from the segment 52 can keep better flatness.

Referring to fig. 1, the tightening groove 511 is a trapezoidal groove, that is, the vertical cross section of the tightening groove 511 is trapezoidal, the groove width of the tightening groove 511 gradually expands from the groove bottom to the groove opening, the tightening block 51 is in a trapezoidal block shape corresponding to the tightening groove 511, and the shape between the tightening groove 511 and the tightening block 51 is convenient for people to embed the tightening block 51 into the tightening groove 511, so that the tightening block 51 is further convenient to inlay.

Referring to fig. 1, a guide post 61 is arranged at the top of the lower die cushion block 32, the guide post 61 is cylindrical, guide sleeves 62 are arranged on the upper die base 21 and the mounting base 331, the guide sleeves 62 are hollow cylindrical sleeves, the guide post 61 simultaneously penetrates through the guide sleeves 62 of the upper die base 21 and the mounting base 331, and the guide post 61 and the guide sleeve 62 are correspondingly arranged, so that the guide post 61 and the guide sleeve 62 are in sliding fit to guide the closing of the upper die core 22 and the lower die core 34. Further, the lower end part of the guide post 61 is sleeved with a limiting block 63, the limiting block 63 is fixed at the top of the lower die cushion block 32, and the limiting block 63 can further limit the guide post 61, so that the die assembly stability of the upper die core 22 and the lower die core 34 is further improved.

Referring to fig. 1, an upper ejector plate 71 and a lower ejector plate 72 are arranged at the top of a base 31, the lower ejector plate 72 is located on the base 31, the upper ejector plate 71 is located on the lower ejector plate 72, an ejector pin 73 is arranged at the top of the upper ejector plate 71, the ejector pin 73 penetrates through a cavity, and after a workpiece is injection molded, the workpiece is ejected out of the cavity through the movement of the ejector pin 73. Specifically, the ejector pin 73 comprises an ejection part 731 and a sliding part 732, one end of the sliding part 732 is fixedly connected to the upper ejector plate 71, the sliding part 732 slides in the lower die assembly, the ejection part 731 is integrally connected to one end of the sliding part 732 away from the upper ejector plate 71, the ejection part 731 is used for abutting against and ejecting a product in the cavity, when the upper ejector plate 71 vertically moves, the upper ejector plate 71 drives the sliding part 732 to vertically slide, so that the ejection part 731 is driven to eject the product in the cavity, and the ejection process of the ejector pin 73 on the product in the cavity is realized.

The implementation principle of a light guide plate hydro-cylinder compression mould of this application embodiment does: the tight pressing of the upper mold core 22 by the pressing blocks 51 and the tight pressing of the lower mold core 34 by the split blocks 52 enable the frame-opening type positioning to be formed in the mold, so that the accuracy of mold core positioning is improved, and the dislocation of the mold core is reduced.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a mould benevolence location structure of light guide plate hydro-cylinder compression mould which characterized in that: comprises a mould blank (1), a butting block (51) and a split block (52);

the die blank (1) comprises an upper die assembly and a lower die assembly, the upper die assembly comprises an upper die base (21) and an upper die core (22), the upper die core (22) is installed at the bottom of the upper die base (21), the lower die assembly comprises a lower die base (33) and a lower die core (34), the lower die core (34) is installed at the top of the lower die base (33), and a cavity is formed by the upper die core (22) and the lower die core (34) in a right-facing mode;

an upper mounting groove (213) for mounting the upper die core (22) is formed in the bottom of the upper die holder (21), the abutting block (51) is embedded in the bottom of the upper die holder (21), and the abutting block (51) abuts against the upper die core (22);

the top of the lower die holder (33) is provided with a lower mounting groove (333) for mounting the lower die core (34), the split blocks (52) are embedded at the top of the lower die holder (33), and the split blocks (52) are abutted against the lower die core (34).

2. The mold insert positioning structure of the light guide plate cylinder compression mold according to claim 1, wherein: the top of the lower die holder (33) is also embedded with a fixing block (53), and the fixing block (53) abuts against the splicing blocks (52).

3. The mold insert positioning structure of the light guide plate cylinder compression mold according to claim 2, wherein: the number of the split blocks (52) is multiple, the split blocks (52) are arranged around the lower die core (34), the number of the fixing blocks (53) is the same as that of the split blocks (52), and the fixing blocks (53) are respectively abutted against the split blocks (52) in a one-to-one correspondence manner.

4. The mold insert positioning structure of the light guide plate cylinder compression mold according to claim 1, wherein: the abutting block (51) is trapezoidal, and the thin end of the abutting block (51) is an embedded end.

5. The mold insert positioning structure of the light guide plate cylinder compression mold according to claim 1, wherein: the lower die assembly further comprises a base (31) and a lower die cushion block (32), the lower die cushion block (32) is arranged at the top of the base (31), and the lower die base (33) is arranged at the top of the lower die cushion block (32);

the lower die holder (33) comprises a mounting seat (331) and a base (332), the mounting seat (331) is positioned at the top of the base (332), and the lower die core (34) is mounted at the top of the mounting seat (331);

the top of lower mould cushion (32) is provided with guide post (61), upper die base (21) and mount pad (331) all are provided with uide bushing (62), guide post (61) pass simultaneously upper die base (21) with mount pad (331) uide bushing (62), guide post (61) with uide bushing (62) correspond the setting.

6. The mold insert positioning structure of the light guide plate cylinder compression mold according to claim 5, wherein: the lower end part of the guide post (61) is sleeved with a limiting block (63), and the limiting block (63) is fixed at the top of the lower die cushion block (32).

7. The mold insert positioning structure of the light guide plate cylinder compression mold according to claim 5, wherein: the top of base (31) is provided with thimble board (71) and lower thimble board (72), thimble board (72) are located base (31) down, it is located to go up thimble board (71) down on thimble board (72), it is provided with thimble (73) to go up thimble board (71) top, thimble (73) run through extremely the die cavity.

8. The mold insert positioning structure of the light guide plate cylinder compression mold according to claim 7, wherein: the ejector pin (73) comprises an ejection part (731) and a sliding part (732), one end of the sliding part (732) is connected to the upper ejector plate (71), the sliding part (732) slides in the lower die assembly, the ejection part (731) is connected to one end, away from the upper ejector plate (71), of the sliding part (732), and the ejection part (731) is used for abutting against and ejecting a workpiece in the cavity.