CN210940229U

CN210940229U - Injection molding die of sealing silica gel strip for automotive electronic steering control system

Info

Publication number: CN210940229U
Application number: CN201921426182.3U
Authority: CN
Inventors: 向仲元
Original assignee: Comptec Die Casting Suzhou Co ltd
Current assignee: Comptec Die Casting Suzhou Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-07-07
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses an automotive electronics turns to injection moulding mould of control system with sealing silica gel strip, including movable mould and cover half, mold core and lower mold core are installed to the one side that movable mould and cover half are close to respectively embedded, go up mold core and lower mold core looks joint and joint department formation die cavity, open the cover half top surface has the sprue, it has liquid silica gel inflow channel and air escape way to go up to open between mold core both sides and the movable mould, liquid silica gel inflow channel and air escape way's one end all communicates the die cavity, liquid silica gel inflow channel's the other end intercommunication sprue, air escape way's the other end runs through the outer wall of movable mould. The accurate compound die of movable mould and cover half, it makes the die cavity closure to go up the accurate joint of mold core and lower mold core, injects liquid silica gel to liquid silica gel inflow channel through the sprue, and liquid silica gel flows into the die cavity along liquid silica gel inflow channel, and the air is discharged to the external world along air escape channel in the die cavity, and it can with movable mould and cover half die sinking take out the product after the liquid silica gel solidification shaping.

Description

Injection molding die of sealing silica gel strip for automotive electronic steering control system

Technical Field

The utility model relates to a liquid silica gel injection moulding technical field specifically is an automotive electronics turns to injection moulding mould of sealing silica gel strip for control system.

Background

The aluminum alloy shell of the automobile electronic steering control system is usually sealed by a silica gel strip attached to the shell, the existing silica gel strip is produced independently according to the size of the shell and is sleeved on the shell through manpower, the silica gel strip and the aluminum alloy shell cannot achieve high seamless binding force and cannot achieve the protection grade of IPX9K, and therefore the injection molding mold of the sealing silica gel strip for the automobile electronic steering control system is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automotive electronics turns to injection moulding mould of sealing silica gel strip for control system to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an injection molding die of a sealing silica gel strip for an automobile electronic steering control system comprises a movable die and a fixed die, wherein the movable die and the fixed die are tightly attached, a slide block is installed on the outer wall of one side of the fixed die through a bolt, a clamping groove is formed in the outer wall of one side of the movable die, the slide block is clamped with the clamping groove in a sliding manner, an upper die core and a lower die core are respectively installed in the middle of the side, close to the movable die, of the movable die through bolt fixation and embedded, the upper die core is clamped with the lower die core, a cavity is formed at the clamping position of the upper die core and the lower die core, a guide post is fixedly installed on the movable die outside the upper die core, a guide hole is formed in the fixed die outside the lower die core, the guide post is in sliding sleeve connection with the guide hole, a filling port is formed in the middle of the side, far away from the movable die, of the fixed die core, a, the other end intercommunication sprue of liquid silica gel inflow passageway, the outer wall of movable mould is run through to the other end of air escape route, all install heating circuit in movable mould and the fixed mould, and heating circuit respectively hugs closely mold core and lower mold core.

Preferably, the sprue is hopper-shaped structure, the movable mould of sprue both sides passes through bolted connection pressure strip, the pressure strip is located the sprue directly over, and opens on the pressure strip and have just to the logical groove of sprue.

Preferably, a plurality of support columns of fixed mounting on the base of cover half, the cover half of mold core bottom under the support column closely laminates, cup joint buffer spring on the support column of cover half corner department.

Preferably, two connecting rods are fixedly sleeved in the movable mold, positioning holes are formed in two sides of one end, away from the lower mold core, of the upper mold core, one end of each connecting rod is connected with the positioning holes in a clamping mode, and two liquid silica gel inflow channels and air exhaust channels are formed between the connecting rods, the upper mold core and the movable mold respectively.

Preferably, open in the movable mould has the injection hole, and the both ends of injection hole connect the sprue respectively and liquid silica gel inflow channel, the circuit plug is all installed to the outer wall of movable mould and cover half, and circuit plug electricity connects heating circuit.

Compared with the prior art, the beneficial effects of the utility model are that: the upper mold core is clamped with the positioning hole through the connecting rod, so that the upper mold core can be aligned with the liquid silica gel inflow channel and the air discharge channel after being installed, the circulation of the liquid silica gel is ensured, and the forming process is ensured; the movable die and the fixed die are guided to be matched through the guide post and the guide hole, so that the sliding block is clamped with the sliding groove, the movable die and the fixed die are accurately matched, the upper die core and the lower die core are accurately clamped to close the die cavity, the die cavity is the same as the aluminum alloy shell, and the silica gel strip can be seamlessly attached to the aluminum alloy shell of the automobile after being formed; the heating circuit heats the cavity and the liquid silica gel inflow channel to ensure that the temperature of the mold reaches a stable value in the production process, and the liquid silica gel is kept in a liquid state when circulating, so that the circulation is smoother; liquid silica gel is injected into the liquid silica gel inflow channel through the injection port and the injection hole, the liquid silica gel flows into the cavity along the liquid silica gel inflow channel, air in the cavity is discharged to the outside along the air discharge channel, the cavity is ensured to be filled with the liquid silica gel, the product forming quality is ensured, and after the liquid silica gel is solidified and formed, the movable mold and the fixed mold are opened to take out a product, so that the use is convenient; when the movable mold and the fixed mold are assembled, the fixed mold can be impacted by the movable mold, and the impact is buffered through the supporting columns and the buffer springs, so that the assembly is stable.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the heating circuit socket of the present invention;

FIG. 3 is a schematic view of the structure of the movable mold at the upper mold core of the present invention;

FIG. 4 is a schematic view of a fixed mold structure at the lower mold core of the present invention;

FIG. 5 is a schematic diagram of the cross-sectional structure of the mold after closing the mold of the present invention;

FIG. 6 is a schematic view of the structure of the positioning hole of the present invention;

in the figure: 1 movable mould, 2 fixed moulds, 3 sliding blocks, 4 clamping grooves, 5 injection ports, 6 pressing plates, 7 supporting columns, 8 buffer springs, 9 heating circuits, 10 guiding columns, 11 guiding holes, 12 upper mould cores, 13 lower mould cores, 14 mould cavities, 15 liquid silica gel inflow channels, 16 air discharge channels, 17 connecting rods, 18 positioning holes and 19 injection holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: an injection molding die of a sealing silica gel strip for an automobile electronic steering control system comprises a movable die 1 and a fixed die 2, the movable die 1 is tightly attached to the fixed die 2, a slide block 3 is installed on the outer wall of one side of the fixed die 2 through a bolt, a clamping groove 4 is formed in the outer wall of one side of the movable die 1, the slide block 3 is clamped with the clamping groove 4 in a sliding manner, an upper die core 12 and a lower die core 13 are respectively and fixedly embedded in the middle of the side, close to the movable die 1 and the fixed die 2, of the movable die through a bolt, the upper die core 12 is clamped with the lower die core 13, a cavity 14 is formed at the clamping position of the upper die core 12 and the lower die core 13, a guide column 10 is fixedly installed on the movable die 1 outside the upper die core 12, a guide hole 11 is formed in the fixed die 2 outside the lower die core 13, a material injection port 5 is formed in the middle of the side, far away, one end of the liquid silica gel inflow channel 15 and one end of the air discharge channel 16 are both communicated with the cavity 14, the other end of the liquid silica gel inflow channel 15 is communicated with the injection port 5, the other end of the air discharge channel 16 penetrates through the outer wall of the movable mold 1, the heating circuits 9 are mounted in the movable mold 1 and the fixed mold 2, and the heating circuits 9 are respectively tightly attached to the upper mold core 12 and the lower mold core 13. Movable mould 1 and cover half 2 lead the compound die through guide post 10 and guiding hole 11, make 3 joint spouts 4 of slider, thereby make the accurate compound die of movable mould 1 and cover half 2, it makes the die cavity 14 closed to go up the accurate joint of die core 12 and lower die core 13, heating circuit 9 guarantees that the temperature of mould reaches a stable numerical value in process of production to die cavity 14 and the heating of liquid silica gel inflow channel 15, inject liquid silica gel into liquid silica gel through sprue 5 to liquid silica gel inflow channel 15, liquid silica gel 15 flows into in die cavity 14 along liquid silica gel inflow channel 15, the air discharges to the external world along air escape channel 16 in the die cavity 14, ensure to be filled with liquid silica gel in the die cavity 14, it can with movable mould 1 and cover half 2 die sinking take out product after the liquid silica gel solidifies the shaping.

The sprue 5 is for leaking hopper-shaped structure, is convenient for and silica gel injection head joint, and the movable mould 1 of sprue 5 both sides passes through bolted connection pressure strip 6, and pressure strip 6 is located sprue 5 directly over, and it has just to lead to the groove of sprue 5 to open on the pressure strip 6, can lead the silica gel injection tube through leading to the groove on the pressure strip 6 to drive pressure strip 6 through the bolt and compress tightly the pig injection head.

A plurality of support columns 7 of fixed mounting on the base of cover half 2, cover half 2 of mold core 13 bottom under support column 7 closely laminates, cup joints buffer spring 8 on the support column 7 of 2 edges of cover half, and during movable mould 1 and the compound die of cover half 2, cover half 2 can receive movable mould 1's impact, cushions the impact through support column 7 and buffer spring 8 for the compound die is steady.

Two connecting rods 17 are fixedly sleeved in the movable mold 1, positioning holes 18 are formed in two sides of one end, far away from the lower mold core 13, of the upper mold core 12, one end of each connecting rod 17 is connected with the corresponding positioning hole 18 in a clamping mode, liquid silica gel inflow channels 15 and air exhaust channels 16 are formed between the two connecting rods 17 and the upper mold core 12 and between the two movable molds 1 respectively, the upper mold core 12 can be aligned with the liquid silica gel inflow channels 15 and the air exhaust channels 16 after being installed, and smooth injection of the liquid silica gel is guaranteed.

An injection hole 19 is formed in the movable die 1, two ends of the injection hole 19 are respectively connected with the injection port 5 and the liquid silica gel inflow channel 15, the liquid silica gel can conveniently flow into the liquid silica gel inflow channel 15, circuit plugs are mounted on the outer walls of the movable die 1 and the fixed die 2, and the circuit plugs are electrically connected with the heating circuit 9.

The working principle is as follows: when the utility model is used, the upper mold core 12 and the lower mold core 13 are clamped on the movable mold 1 and the fixed mold 2, the upper mold core 12 can be aligned with the liquid silica gel inflow channel 15 and the air exhaust channel 16 after being installed by clamping the positioning hole 18 through the connecting rod 17, the cavity 14 outside the upper mold core 12 and the lower mold core 13 is the same as the aluminum alloy shell, so that the aluminum alloy shell of an automobile can be seamlessly attached after the silica gel strip is formed, the movable mold 1 and the fixed mold 2 are guided to be assembled through the guide post 10 and the guide hole 11, the sliding block 3 is clamped with the sliding chute 4, so that the movable mold 1 and the fixed mold 2 are accurately assembled, the cavity 14 is closed by accurately clamping the upper mold core 12 and the lower mold core 13, when the movable mold 1 and the fixed mold 2 are assembled, the fixed mold 2 can be impacted by the movable mold 1, the impact is buffered through the support post 7 and the buffer spring 8, the mold assembly is stable, the heating circuit 9 heats the cavity 14, liquid silica gel is injected into the liquid silica gel inflow channel 15 through the injection port 5 and the injection hole 19, the liquid silica gel 15 flows into the cavity 14 along the liquid silica gel inflow channel 15, air in the cavity 14 is discharged to the outside along the air discharge channel 16, the cavity 14 is ensured to be filled with the liquid silica gel, and after the liquid silica gel is solidified and formed, the movable die 1 and the fixed die 2 are opened and a product is taken out.

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

Claims

1. The utility model provides an automotive electronics turns to injection moulding mould of sealing silica gel strip for control system, includes movable mould (1) and cover half (2), its characterized in that: the movable mould (1) and the fixed mould (2) are tightly attached, one side outer wall of the fixed mould (2) is provided with a slider (3) through a bolt, one side outer wall of the movable mould (1) is provided with a clamping groove (4), the slider (3) is slidably connected with the clamping groove (4), one middle part of the movable mould (1) close to the fixed mould (2) is respectively provided with an upper mould core (12) and a lower mould core (13) through bolt fixation and embedding, the upper mould core (12) and the lower mould core (13) are connected in a clamping way, a clamping part of the upper mould core (12) and the lower mould core (13) forms a mould cavity (14), a guide post (10) is fixedly arranged on the movable mould (1) outside the upper mould core (12), the fixed mould (2) outside the lower mould core (13) is provided with a guide hole (11), the guide post (10) is slidably connected with the guide hole (11), the fixed mould (2) is far away from one middle part, go up mold core (12) both sides and movable mould (1) and open between and have liquid silica gel inflow channel (15) and air escape way (16), the one end of liquid silica gel inflow channel (15) and air escape way (16) all communicates die cavity (14), the other end intercommunication sprue (5) of liquid silica gel inflow channel (15), the outer wall of movable mould (1) is run through to the other end of air escape way (16), all install heating circuit (9) in movable mould (1) and the cover half (2), and heating circuit (9) respectively tightly paste mold core (12) and lower mold core (13).

2. The injection molding mold of the silicone sealant strip for the automotive electronic steering control system according to claim 1, wherein: the injection port (5) is hopper-shaped structure, movable mould (1) of injection port (5) both sides passes through bolted connection pressure strip (6), pressure strip (6) are located injection port (5) directly over, and open on pressure strip (6) and have just to leading to the groove of injection port (5).

3. The injection molding mold of the silicone sealant strip for the automotive electronic steering control system according to claim 1, wherein: a plurality of support columns (7) of fixed mounting are gone up to the base of cover half (2), cover half (2) of mold core (13) bottom under support column (7) closely laminating, cup joint buffer spring (8) on support column (7) of cover half (2) edge.

4. The injection molding mold of the silicone sealant strip for the automotive electronic steering control system according to claim 1, wherein: two connecting rods (17) are cup jointed to movable mould (1) internal fixation, it has locating hole (18) all to open in the one end both sides of mould core (13) down to go up mould core (12), the one end joint locating hole (18) of connecting rod (17), two connecting rod (17) and last mould core (12) and movable mould (1) are opened respectively and are had liquid silica gel inflow passageway (15) and air escape way (16).

5. The injection molding mold of the silicone sealant strip for the automotive electronic steering control system according to claim 1, wherein: injection hole (19) have been seted up in movable mould (1), and injection hole (19) both ends are connected sprue (5) and liquid silica gel inflow channel (15) respectively, the circuit plug is all installed to the outer wall of movable mould (1) and cover half (2), and circuit plug electricity connects heating circuit (9).