CN221249659U

CN221249659U - Automobile backlight plate processing die

Info

Publication number: CN221249659U
Application number: CN202322740778.3U
Authority: CN
Inventors: 易文君; 龙飞
Original assignee: Dongguan Xingmao Die Casting Co ltd
Current assignee: Dongguan Xingmao Die Casting Co ltd
Priority date: 2023-10-12
Filing date: 2023-10-12
Publication date: 2024-07-02
Anticipated expiration: 2033-10-12

Abstract

The utility model discloses an automobile backlight plate processing die, which belongs to the technical field of backlight plate dies and comprises a rear die frame, a front die frame and a fixed bottom plate; the front mold core is matched with the rear mold core, and a charging barrel for charging is arranged on the surface of the front mold core; the surface of the rear die core is provided with a diversion cone matched with the charging barrel, and one side of the diversion cone is provided with a diversion plate for guiding the sizing material; the die leg is connected to the top of the fixed bottom plate, the top of the die leg is connected with the rear die frame through a guide post, and the front die frame is assembled on the top of the rear die frame; the utility model can improve the stability of glue injection during the injection molding of the backlight plate, ensure that the glue evenly and stably enters the inside of the mold, further improve the glue molding effect, reduce the defects of glue shortage and the like of the glue, and improve the molding quality of the backlight plate.

Description

Automobile backlight plate processing die

Technical Field

The utility model relates to the technical field of backlight plate molds, in particular to an automobile backlight plate processing mold.

Background

With the development of display technology, backlight panels are increasingly used in the automotive field. The existing injection molding mold for the automobile backlight plate is characterized in that a mold cavity is generally formed by a movable mold plate and a fixed mold plate directly, the size of the mold cavity is fixed, multiple sets of molds with different specifications are required to be designed according to the thickness of the backlight plate, and each set of mold can only mold the backlight plate with the fixed thickness, so that the cost is high. The existing backlight plate forming die has the following defects: when the injection molding backlight plate is used for injection molding the backlight plate with larger size, the defects of insufficient glue injection (namely, unsaturated, lack of glue, short shot, unsaturated mould) and the like of partial areas are easy to occur because the flowing area of the glue stock is larger, and even if the glue stock is forcibly saturated by increasing the injection pressure of the glue stock, uneven stress in the backlight plate is easy to cause to form defective products. Therefore, we need to propose a mold for processing the backlight plate of the automobile.

Disclosure of utility model

The utility model aims to provide an automobile backlight plate processing die which can improve the stability of glue injection during injection molding of a backlight plate, ensure that glue uniformly and stably enters the die, further improve the glue molding effect, reduce the defects of glue shortage and the like of the glue, and improve the molding quality of the backlight plate so as to solve the problems in the background technology.

To achieve the above object, the present utility model provides: a processing die for an automobile backlight plate comprises a rear die frame, a front die frame and a fixed bottom plate; the front mold core is matched with the rear mold core, and a charging barrel for charging is arranged on the surface of the front mold core; the surface of the rear die core is provided with a diversion cone matched with the charging barrel, and one side of the diversion cone is provided with a diversion plate for guiding the sizing material; the die leg is connected to the top of the fixed bottom plate, the top of the die leg is connected with the rear die frame through a guide post, and the front die frame is assembled on the top of the rear die frame; the ejection assembly is arranged at the top of the fixed bottom plate and used for blanking the backlight plate product.

Preferably, the ejection assembly comprises: an ejector plate movably connected with the top of the fixed bottom plate and an ejector pin connected with the ejector plate; the ejector pin plate is characterized in that one end of the ejector pin penetrates through the rear die frame and is in sliding connection with the rear die core, the bottom of the ejector pin plate is connected with an ejector pin bottom plate, and the ejector pin bottom plate is movably mounted at the top of the fixed bottom plate through an electric push rod.

Preferably, the two sides of the thimble are provided with a limiting rod on the surface of the thimble plate, the surface of the limiting rod is sleeved with a reset spring, and the top end of the reset spring is connected with the bottom of the rear mold frame.

Preferably, the two sides of the top of the thimble plate are connected with guide rods, and the thimble plate is movably connected with the bottom of the rear mold frame through the guide rods.

Preferably, limit grooves are formed in four corners of the surface of the front die core, limit blocks are arranged in four corners of the rear die core, and the limit blocks are matched with the limit grooves.

Preferably, the flow diversion cone is arranged on the surface of the rear mold core, the top of the flow diversion plate is provided with a flow diversion groove, and the flow diversion groove is communicated with the flow diversion cone.

Preferably, a front mold air exhaust block is assembled on one side of the front mold frame, standing feet are connected on two sides of the rear mold frame and the front mold frame, and side locks are installed at two ends of the rear mold frame in a staggered mode.

Compared with the prior art, the utility model has the beneficial effects that:

The utility model adopts the structure of a rear mould core, a mould foot, a guide post, a front mould core, a split cone, an ejection assembly and the like; the guide pillar can lead the front mold frame to play a role in guiding when moving towards the rear mold core, and lead the limiting block on the surface of the rear mold core to be matched and positioned with the limiting groove on the surface of the front mold core, lock and fix the rear mold frame and the front mold frame through the side lock, improve the fit between the rear mold core and the front mold core, inject sizing material into the mold through the charging barrel, and lead the sizing material to be evenly and stably injected into the mold by matching with the diversion groove arranged on the surface of the diversion plate, thereby ensuring the molding quality of the backlight plate; and stretch out through electric putter and promote the thimble bottom plate upwards, make thimble board cooperation guide arm motion, push out the back light plate product through the thimble, improve the efficiency of unloading to reset after the back light plate unloading through the reset spring on gag lever post surface.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of a rear mold frame structure according to the present utility model;

FIG. 3 is an enlarged schematic view of the area A of FIG. 2 according to the present utility model;

FIG. 4 is a schematic view of a front frame structure of the present utility model;

FIG. 5 is a schematic view of a thimble plate structure according to the present utility model.

In the figure: 1. a rear mold frame; 2. a front mold frame; 3. a rear mold core; 4. a limiting block; 5. a backlight board product; 6. a fitting hole; 7. an edge lock; 8. standing feet; 9. a fixed bottom plate; 10. a mold foot; 11. a thimble bottom plate; 12. a needle ejection plate; 13. a guide rod; 14. a limit rod; 15. a return spring; 16. a thimble; 17. a guide post; 18. a charging barrel; 19. a front mold core; 20. a limit groove; 21. a front mold exhaust block; 22. a split cone; 23. a diverter plate; 24. and a diversion trench.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides: a processing mould of an automobile backlight plate comprises a rear mould frame 1, a front mould frame 2 and a fixed bottom plate 9; the rear mold core 3 is assembled on the inner surface of the rear mold frame 1, the front mold core 19 matched with the rear mold core 3 is assembled on the inner surface of the front mold frame 2, and a charging barrel 18 for charging is arranged on the surface of the front mold core 19; the surface of the rear mould core 3 is provided with a diverter cone 22 matched with the charging barrel 18, and one side of the diverter cone 22 is provided with a diverter plate 23 for diversion of sizing materials; the die leg 10 is connected to the top of the fixed bottom plate 9, the top of the die leg 10 is connected with the rear die frame 1 through the guide post 17, and the front die frame 2 is assembled on the top of the rear die frame 1; and the ejection assembly is arranged at the top of the fixed bottom plate 9 and used for blanking the backlight plate product 5.

It is worth noting that, through the setting of back mould benevolence 3, mould foot 10, guide pillar 17, front mould benevolence 19, reposition of redundant personnel awl 22, ejecting subassembly structure, can improve the back light plate when moulding plastics, can improve the stability that the sizing material injected into for inside the even steady entering mould of sizing material, further improve sizing material fashioned effect, reduce defect such as lack of glue appear in the sizing material, improve the fashioned quality of back light plate.

Specifically, ejecting subassembly includes: the thimble plate 12 is movably connected with the top of the fixed bottom plate 9, and the thimble 16 is connected with the thimble plate 12; one end of the ejector pin 16 penetrates through the rear mold frame 1 and is in sliding connection with the rear mold core 3, the bottom of the ejector plate 12 is connected with an ejector pin bottom plate 11, and the ejector pin bottom plate 11 is movably mounted at the top of the fixed bottom plate 9 through an electric push rod.

Further, the fixed bottom plate 9 is a structure for carrying and installing a die, the ejector plate 12 is a component for installing the ejector pins 16, the ejector pins 16 are components for blanking the backlight plate product 5, the guide rod 13 plays a role in guiding and limiting the ejector plate 12, and the ejector bottom plate 11 is a component for connecting the ejector plate 12.

Wherein, the both sides of thimble 16 are located the surface mounting gag lever post 14 of thimble board 12, and the surface cover of gag lever post 14 is equipped with reset spring 15, and the bottom of back mould frame 1 is connected at reset spring 15's top. The two sides of the top of the ejector plate 12 are connected with guide rods 13, and the ejector plate 12 is movably connected with the bottom of the rear mold frame 1 through the guide rods 13. The stop lever 14 is a component assembled on the reset spring 15, the reset spring 15 has a reset function on the thimble plate 12, the rear die frame 1 is arranged at the top of the die leg 10 after the surface of the rear die frame 1 is provided with the assembly hole 6, and the bottom end of the guide post 17 passes through the assembly hole 6 to be connected with the die leg 10.

Limiting grooves 20 are formed in four corners of the surface of the front die core 19, limiting blocks 4 are arranged in four corners of the rear die core 3, and the limiting blocks 4 are matched with the limiting grooves 20. The diversion cone 22 is arranged on the surface of the rear mould core 3, the top of the diversion plate 23 is provided with a diversion trench 24, and the diversion trench 24 is communicated with the diversion cone 22. One side of the front mold frame 2 is provided with a front mold air exhaust block 21, two sides of the rear mold frame 1 and the front mold frame 2 are connected with standing feet 8, and two ends of the rear mold frame 1 are provided with side locks 7 in a staggered manner.

In addition, the spacing groove 20 and the spacing block 4 are the structure of the front mould core 19 and the rear mould core 3, the split cone 22 plays a role in guiding the sizing material, the split plate 23 plays a role in guiding the sizing material by matching the guide groove 24, the stability of sizing material injection is improved, the occurrence of the situation of lack of sizing and the like is reduced, the front mould air exhaust block 21 is the structure of exhausting air in the mould, the side lock 7 is a structure for locking and fixing the rear mould frame 1 and the front mould frame 2, and the backlight plate forming is facilitated.

The guide post 17 can lead the front mold frame 2 to play a role in guiding when moving towards the rear mold core 3, lead the limiting block 4 on the surface of the rear mold core 3 to be matched and positioned with the limiting groove 20 on the surface of the front mold core 19, lock and fix the rear mold frame 1 and the front mold frame 2 through the side lock 7, improve the fit between the rear mold core 3 and the front mold core 19, inject sizing material into the mold through the charging barrel 18, and lead the sizing material to be evenly and stably injected into the mold by matching with the guide groove 24 arranged on the surface of the flow distribution plate 23, thereby ensuring the molding quality of the backlight plate; and the ejector pin plate 11 is pushed upwards through the extension of the electric push rod, so that the ejector pin plate 12 moves in cooperation with the guide rod, the backlight plate product 5 is ejected through the ejector pin 16, the blanking efficiency is improved, and the reset can be performed after blanking through the reset spring 15 on the surface of the limiting rod 14.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An automobile backlight plate processing mold, which is characterized by comprising: a rear mold frame (1), a front mold frame (2) and a fixed bottom plate (9);

the rear die core (3) is assembled on the inner surface of the rear die frame (1), the front die core (19) matched with the rear die core (3) is assembled on the inner surface of the front die frame (2), and a charging barrel (18) for charging is arranged on the surface of the front die core (19);

The surface of the rear die core (3) is provided with a diversion cone (22) matched with the charging barrel (18), and one side of the diversion cone (22) is provided with a diversion plate (23) for diversion of sizing materials;

the die legs (10) are connected to the top of the fixed bottom plate (9), the tops of the die legs (10) are connected with the rear die frame (1) through guide posts (17), and the front die frame (2) is assembled on the top of the rear die frame (1);

The ejection assembly is arranged at the top of the fixed bottom plate (9) and used for blanking the backlight plate product (5).

2. The automotive backlight processing mold according to claim 1, wherein: the ejection assembly comprises:

A thimble plate (12) movably connected with the top of the fixed bottom plate (9), and

The ejector pin (16) is connected to the ejector pin plate (12);

one end of the thimble (16) penetrates through the rear mold frame (1) and is in sliding connection with the rear mold core (3), the bottom of the thimble plate (12) is connected with a thimble bottom plate (11), and the thimble bottom plate (11) is movably mounted at the top of the fixed bottom plate (9) through an electric push rod.

3. The automotive backlight processing mold according to claim 2, wherein: the surface mounting of thimble (16) both sides in thimble board (12) has gag lever post (14), the surface cover of gag lever post (14) is equipped with reset spring (15), the bottom of back mould frame (1) is connected on the top of reset spring (15).

4. A mold for processing a backlight of an automobile according to claim 3, wherein: guide rods (13) are connected to two sides of the top of the ejector plate (12), and the ejector plate (12) is movably connected with the bottom of the rear mold frame (1) through the guide rods (13).

5. The automotive backlight processing mold according to claim 1, wherein: limiting grooves (20) are formed in four corners of the surface of the front die core (19), limiting blocks (4) are arranged in four corners of the rear die core (3), and the limiting blocks (4) are matched with the limiting grooves (20).

6. The automotive backlight processing mold according to claim 1, wherein: the flow diversion cone (22) is arranged on the surface of the rear mold core (3), the top of the flow diversion plate (23) is provided with a flow diversion groove (24), and the flow diversion groove (24) is communicated with the flow diversion cone (22).

7. The automotive backlight processing mold according to claim 1, wherein: front mould exhaust block (21) is equipped with to one side of front mould frame (2), the both sides of back mould frame (1) and front mould frame (2) all are connected with stand foot (8), edge lock (7) are installed in dislocation of the both ends of back mould frame (1).