CN115195028A

CN115195028A - Automobile lampshade injection mold

Info

Publication number: CN115195028A
Application number: CN202210960663.2A
Authority: CN
Inventors: 邓直; 王云强; 邓国飞; 方逸泓
Original assignee: Huaying Zhengda Auto Parts Co ltd
Current assignee: Huaying Zhengda Auto Parts Co ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2022-10-18
Anticipated expiration: 2042-08-11
Also published as: CN115195028B

Abstract

The invention belongs to the technical field of injection molds, and particularly relates to an injection mold for an automobile lampshade, which can be more convenient and quicker by arranging a connecting mechanism when the mold is connected with an external connecting seat in an installing way, improve the convenience of operation and ensure that the mold can not generate offset momentum during injection molding; the arrangement of the adjusting mechanism can meet the use requirements of different external connecting seats, so that the connection of the die is more convenient, rapid and flexible; and the joint piece adopts the connected mode of different fixed plates, tongues, expanding spring, can further match the external connecting seat of different thickness sizes for it is more nimble effective to connect.

Description

Automobile lampshade injection mold

Technical Field

The invention belongs to the technical field of injection molds, and particularly relates to an injection mold for an automobile lampshade.

Background

With the continuous development of vehicles and the improvement of the living economic level of people, automobiles are the most common and popular vehicles and gradually become common tools for families of people, the appearance of the automobiles greatly facilitates the traveling of people and improves the production activities, and with the continuous improvement of the current automobile demand scale, the scale of automobile production is also continuously enlarged.

The whole automobile is generally assembled by a plurality of different independent parts, wherein a light source assembly of the automobile is a necessary safety guarantee mechanism for driving at night, the light source assembly of the automobile is the same as a conventional light-emitting component, the light-emitting component is also powered by a power supply to provide a light source for driving, in order to avoid damage of the light-emitting component in the driving process, a lampshade is often required to be arranged to shield and protect the light-emitting component, the lampshade is generally produced in an injection molding mode in order to improve production efficiency and effect, relevant injection molds are required to be used in the process, due to the difference of the lampshades of different models and models, a mold used by the automobile lampshade needs to be replaced and disassembled regularly according to requirements in the production process, a general mold is usually fixed by bolts in the installation mode, but the fixing mode is complex in operation, particularly in the vibration process generated by long-time opening and closing of the mold, the bolts are easy to loosen due to vibration, and further cause deviation in the later stage to generate defective molds, and the requirements for high-quality and high-efficiency production of the automobile lampshade are not met.

Disclosure of Invention

The purpose of the invention is: the injection mold for the automobile lamp cover is convenient and stable to disassemble and assemble, and meets the production requirements of high efficiency and high quality of automobile lamp cover production.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:

an injection mold for an automobile lampshade comprises a base, a cavity seat and an external connecting seat, wherein the cavity seat is arranged at the upper end of the base, and a connecting mechanism matched with the external connecting seat is arranged at the lower end of the base;

the connecting mechanisms are at least four in number and distributed in rectangular four corners, each connecting mechanism comprises a hollow cylinder, a return spring and a limiting piece, the hollow cylinders are fixedly arranged at the lower end of the base, a section of side surface, close to the base, of each hollow cylinder is uniformly provided with a plurality of movable through grooves in an annular shape, the limiting pieces are slidably arranged in the hollow cylinders and matched with the movable through grooves, the base is provided with accommodating grooves matched with the hollow cylinders, and the return springs are arranged between the accommodating grooves and the limiting pieces;

the locating part includes a central disk, an outer throw-out collar and four joint spare, central disk slides and locates in the hollow cylinder, the outer throw-out collar cover is located hollow cylinder and with central disk is connected, four the joint spare is the annular and locates the central disk other end and with a plurality of the groove one-to-one is led to in the activity, the joint spare includes shell fragment and joint piece, the shell fragment with central disk elastic connection just keeps away from under initial condition hollow cylinder axis lopsidedness, the joint piece with the shell fragment is connected and with the groove phase-match is led to in the activity.

The outer side surface of the hollow cylinder is sleeved with an unlocking cap, the hollow cylinder and the external connecting seat are both made of iron, the unlocking cap is made of a magnet, the length of the unlocking cap is greater than that of the hollow cylinder, and the outer side surface of the unlocking cap is provided with spiral sunken anti-skidding threads; therefore, the connection of the connecting mechanism can be cancelled more conveniently, and the use requirement is met.

The base is provided with an adjusting mechanism matched with the connecting mechanism, the adjusting mechanism comprises four connectors and a driving bevel gear, and the four connectors correspond to the four connecting mechanisms in a one-to-one mode.

The connector comprises a screw rod, a driven bevel gear, a guide rod and a carrying block, wherein the base is provided with a mounting groove, the screw rod is rotatably arranged in the mounting groove, the middle part of the base is provided with a circular groove, the driving bevel gear is rotatably arranged in the circular groove and is connected with an external rotator, one end of the screw rod rotatably extends into the circular groove and is connected with the driven bevel gear, the driven bevel gear is meshed and matched with the driving bevel gear, the guide rod is fixedly arranged in the mounting groove and is in sliding connection with the carrying block, and the connecting mechanism is arranged at the upper end of the carrying block; therefore, according to different requirements, the position of the connecting mechanism can be conveniently and flexibly adjusted, and the connecting requirements of different components are met.

Two ends of the carrying block are provided with corrugated covers matched with the mounting grooves; therefore, the installation groove can be shielded and protected, and the influence of external impurities on the parts is avoided.

The clamping piece can also consist of a fixed plate, a plurality of sliding tongues and a plurality of telescopic springs, the sliding tongues are uniformly arranged on the upper side of the fixed plate, a central column is arranged in the middle of the central wafer, the telescopic springs are uniformly and fixedly arranged in the central column and correspond to the sliding tongues in the same group one by one, and the telescopic springs are connected with the corresponding sliding tongues; through the cooperation of a plurality of tongues and expanding spring, can make the connection to the mould fixed more nimble, satisfy the needs of the outside connecting seat of different thickness sizes more.

The inclined end of the sliding tongue is far away from the central disc; therefore, the sliding tongue can be more easily retracted into the hollow cylinder, and the sliding tongue can not be automatically retracted under the condition of matching with four connecting mechanisms.

Compared with the prior art, the invention has the following advantages:

through the arrangement of the connecting mechanism, when the die is mounted on the external connecting seat, the connecting effect can be conveniently, quickly and stably achieved, the mounting efficiency and convenience of the die are improved, compared with a traditional connecting mode, the connecting mechanism is more convenient, and can achieve a stable connecting effect and is not easy to move; the arrangement of the unlocking cap is matched, so that when the die needs to be disassembled, the die can be conveniently and quickly disassembled, and the operation is convenient; due to the arrangement of the adjusting mechanism, when the adjusting mechanism faces external connecting seats with different sizes and types, the position of the connecting mechanism can be flexibly adjusted according to needs, the purpose of meeting different use needs is achieved, and the adjusting mechanism is more flexible and convenient; and the structure adjustment of joint spare is fixed plate, tongue, expanding spring's mode, can further match the external connection seat use needs of different thickness for connect the operation convenient more nimble.

Drawings

The invention is further illustrated by the non-limiting examples given in the figures.

FIG. 1 is a schematic structural diagram of an injection mold for an automotive lamp cover according to the present invention.

Fig. 2 is another angle structure diagram of the present invention.

FIG. 3 is a schematic view of the present invention with the chamber seat and the external connection seat removed.

Fig. 4 is an enlarged sectional view of the connecting mechanism of the present invention.

Fig. 5 is a schematic structural diagram of a limiting element according to the present invention.

Fig. 6 is a schematic structural diagram of another embodiment of the present invention.

Fig. 7 is an enlarged sectional view of the structure of an adjustment mechanism in another embodiment of the present invention.

Fig. 8 is a sectional view of the entire structure in another embodiment of the present invention.

Fig. 9 is a schematic structural view of a clip member in another embodiment of the present invention.

The device comprises a base 1, a chamber seat 11, an external connecting seat 12, a hollow cylinder 2, a return spring 21, a movable through groove 22, a containing groove 23, a central wafer 3, an outward push ring 31, an elastic sheet 32, a clamping block 33, a driving bevel gear 4, a screw 41, a driven bevel gear 42, a guide rod 43, a carrying block 44, an installing groove 45, a circular groove 46, a fixing plate 5, a sliding tongue 51, an expansion spring 52 and a central column 53.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

The first embodiment is as follows:

as shown in fig. 1-5, an injection mold for an automotive lamp cover comprises a base 1, a chamber seat 11 and an external connecting seat 12, wherein the chamber seat 11 is arranged at the upper end of the base 1, and the lower end of the base 1 is provided with a connecting mechanism matched with the external connecting seat 12;

the number of the connecting mechanisms is at least four, the connecting mechanisms are distributed in four rectangular corners, each connecting mechanism comprises a hollow cylinder 2, a reset spring 21 and a limiting piece, the hollow cylinders 2 are fixedly arranged at the lower ends of the bases 1, one side face, close to the bases 1, of each hollow cylinder 2 is uniformly provided with a plurality of movable through grooves 22 in an annular shape, the limiting pieces are slidably arranged in the hollow cylinders 2 and matched with the movable through grooves 22, the bases 1 are provided with accommodating grooves 23 matched with the hollow cylinders 2, and the reset springs 21 are arranged between the accommodating grooves 23 and the limiting pieces;

the locating part includes a central disk 3, an outer throw-out collar 31 and four joint spare, central disk 3 slides and locates in hollow cylinder 2, the outer throw-out collar 31 cover is located hollow cylinder 2 and is connected with central disk 3, four joint spare are the annular and locate the 3 other ends of central disk and with a plurality of activity logical groove 22 one-to-one, joint spare includes shell fragment 32 and joint piece 33,

shell fragment

32 and 3 elastic connection of central disk and to keeping away from 2 axis lopsidedness of hollow cylinder under initial condition, joint piece 33 is connected with shell fragment 32 and leads to groove 22 phase-matchs with the activity.

In order to ensure the stability of the lower die during injection molding, the lower die is not cheap, when the lower die is installed on the external connecting seat 12, the four clamping pieces are firstly aligned with the four connecting holes of the external connecting seat 12, the base 1 is directly put down after the alignment, the base 1 is connected with the external connecting seat 12, the central wafer 3 is kept away from the base 1 under the pushing action of the reset spring 21 in the initial state, and the central wafer 3 is blocked to generate relative displacement under the pushing action between the outward pushing ring 31 and the external connecting seat 12, namely the central wafer 3 is gradually close to the base 1, and the clamping pieces connected with the central wafer 3 synchronously move;

in the initial state, shell fragment 32 and joint piece 33 in the joint spare receive the blockking of hollow cylinder 2 and keep the tilt state, namely joint piece 33 laminating hollow cylinder 2's internal face, and when joint spare moving as a whole and matching activity through groove 22, joint piece 33 will lose hollow cylinder 2's blockking gradually, until the tip of joint piece 33 crosses hollow cylinder 2 completely and when corresponding with activity through groove 22 completely, the elasticity of shell fragment 32 self can promote joint piece 33 to remove, and then make joint piece 33 stretch out activity through groove 22, cooperation activity through groove 22 produces the spacing joint effect to external connecting seat 12, and in order to ensure connection stability, the interval between the lower terminal surface after stretching out activity through groove 22 to the upper end of extrapolation ring 31 of joint piece 33 and the thickness phase-match of external connecting seat 12, the up end of joint piece 33 is the inclined plane simultaneously, so can make to form comparatively firm connection effect between external connecting seat 12 and the joint spare, like this when connecting the bed die, can reach fast, it is convenient, stable connection effect, can not appear when the later stage produces the convenience when moulding plastics, stability when having improved the change of external factor and the connection when the joint piece is changed, especially when the mould plastics very big improvement of the installation of needs when moulding plastics.

The outer side surface of the hollow cylinder 2 is sleeved with an unlocking cap, the hollow cylinder 2 and the external connecting seat 12 are both made of iron, the unlocking cap is made of a magnet, and the length of the unlocking cap is greater than that of the hollow cylinder 2; the outer side surface of the unlocking cap is provided with spiral sunken antiskid lines.

The unlocking cap can improve the convenience of replacing and disassembling the mold in the later period, when the mold is disassembled, the unlocking cap is only required to be sleeved on the hollow sleeve and slide along the length direction of the hollow sleeve, the unlocking cap and the external connecting seat 12 are abutted, the unlocking cap is made of a magnet, the hollow cylinder 2 and the external connecting seat 12 are made of iron, the unlocking cap can be adsorbed on the hollow cylinder 2 or the external connecting seat 12, the problem that the connection mechanism is easy to fall off due to the fact that the connection mechanism is located on the lower side of the external connecting seat 12 can be solved, the unlocking cap is in the sliding process, the inclined plane part of the upper end face of the clamping block 33 can be pushed, the hollow cylinder 2 is withdrawn, the overturning direction of the elastic sheet 32 is perpendicular to the sliding direction of the unlocking cap, the stability of the unlocking cap can be kept after the clamping block 33 is pushed back, the four connection mechanisms can be quickly unlocked, the purpose that the mold can be cancelled by directly lifting the mold can be realized, and after the unlocking is cancelled, the reset thrust of the reset spring 21 is convenient for synchronous resetting of the limiting part and the limiting part in the mold in the later period for connection and reuse.

Example two:

as shown in fig. 6 to 8, in a further improvement on the first embodiment, the base 1 is provided with an adjusting mechanism matched with the connecting mechanism, the adjusting mechanism includes four connectors and one driving bevel gear 4, the four connectors correspond to the four connecting mechanisms one by one, the connectors include a screw rod 41, a driven bevel gear 42, a guide rod 43 and a carrier block 44, the base 1 is provided with an installation groove 45, the screw rod 41 is rotatably arranged in the installation groove 45, the middle of the base 1 is provided with a circular groove 46, the driving bevel gear 4 is rotatably arranged in the circular groove 46 and connected with an external rotator, one end of the screw rod 41 rotatably extends into the circular groove 46 and is connected with the driven bevel gear 42, the driven bevel gear 42 is engaged and matched with the driving bevel gear 4, the guide rod 43 is fixedly arranged in the installation groove 45 and is slidably connected with the carrier block 44, and the connecting mechanism is arranged at the upper end of the carrier block 44; and corrugated covers matched with the mounting grooves 45 are arranged at two ends of the carrying block 44.

Because the positions of the connecting holes of different external connecting seats 12 may be different, in order to ensure that the mold can be connected with external connecting seats 12 of different models, if necessary, the driving bevel gear 4 can be rotated by an external rotator such as a motor, a handle and the like, at the moment, the driving bevel gear 4 rotates to drive the driven bevel gear 42 engaged with the driving bevel gear to rotate, the driven bevel gear 42 rotates to drive the screw rod 41 to rotate, at the moment, the carrier block 44 connected to the screw rod 41 is limited by the mounting groove 45, therefore, the carrier block 44 moves back and forth according to the rotating direction of the driving bevel gear 4, wherein the mounting groove 45 can be arranged in a direction parallel to the side line of the base 1 and can also be arranged along the diagonal line of the base 1, so that the connecting requirements of different external connecting seats 12 can be met, the arrangement of the guide rod 43 can play a further guiding and stabilizing effect on the carrier block 44, the arrangement of the boshao-zhao can play a role in protecting the mounting groove 45, and prevent external impurities from entering and influencing the movement of the screw rod 41 or other parts, thereby improving the stability;

when the die is not used, the connecting mechanism can be adjusted to the position of the middle part far away from the base 1, so that the die can be conveniently placed on other supporting table boards, and when the placing is prevented from being influenced, the produced blank edge is more convenient for taking up the die in the later stage.

Example three:

as shown in fig. 9, in a further improvement based on the first embodiment, the fastening member may also include a fixing plate 5, a plurality of sliding tongues 51 and a plurality of telescopic springs 52, the plurality of sliding tongues 51 are uniformly disposed on the upper side of the fixing plate 5, a central column 53 is disposed in the middle of the central wafer 3, the plurality of telescopic springs 52 are uniformly fixed on the central column 53 and correspond to the plurality of sliding tongues 51 in the same group one by one, and the telescopic springs 52 are connected to the corresponding sliding tongues 51; the beveled end of the tongue is distal from the central disc.

In order to further meet the requirements of different external connecting seats 12, the thickness of part of the external connecting seats 12 may have a certain size deviation, when the limiting member extends into the connecting hole of the external connecting seat 12, the outward pushing ring 31 will still be pushed by the blocking of the external connecting seat 12, and the fixing plate 5 will be moved by the pulling of the outward pushing ring 31 synchronously, at this time, the sliding housing will move synchronously with the central wafer 3, because the external connecting seats 12 with different thicknesses will produce different length blocking to the hollow cylinder 2, and correspondingly, different degrees of blocking to the movable through groove 22 will also be produced, and when the fixing plate 5 moves synchronously, the sliding tongues 51 located at different positions on the fixing plate 5 will also be blocked by the external connecting seats 12, until the hollow cylinder 2 is completely inserted into the external connecting seat 12, the movable through groove 22 at the side of the hollow cylinder 2 will be exposed to the corresponding length, at this time, the sliding tongues 51 at the end of the fixing plate 5 will not be blocked, at this time, the sliding tongues 51 will extend outwards along the fixing plate 5 to achieve the same limiting and fixing effect as the clamping block 33, so that when facing the external connecting seats 12 with different thicknesses, a more flexible connection effect can be achieved.

The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides an automobile lampshade injection mold, includes base, cavity seat and external connection seat, the cavity seat is located the base upper end, its characterized in that: the lower end of the base is provided with a connecting mechanism matched with the external connecting seat;

the number of the connecting mechanisms is at least four, the connecting mechanisms are distributed in four rectangular corners, each connecting mechanism comprises a hollow cylinder, a reset spring and a limiting piece, the hollow cylinder is fixedly arranged at the lower end of the base, a section of side surface, close to the base, of the hollow cylinder is uniformly provided with a plurality of movable through grooves in an annular shape, the limiting pieces are slidably arranged in the hollow cylinder and matched with the movable through grooves, the base is provided with an accommodating groove matched with the hollow cylinder, and the reset springs are arranged between the accommodating groove and the limiting pieces;

2. The injection mold for lampshade of automobile of claim 1, wherein: the outer side face of the hollow cylinder is sleeved with an unlocking cap, the hollow cylinder and the external connecting seat are made of iron, the unlocking cap is made of a magnet, and the length of the unlocking cap is larger than that of the hollow cylinder.

3. The injection mold for lampshade of automobile of claim 2, wherein: the outer side surface of the unlocking cap is provided with spiral sunken anti-skidding lines.

4. The injection mold for the lamp cover of the automobile as set forth in claim 1, wherein: the base is provided with an adjusting mechanism matched with the connecting mechanism, the adjusting mechanism comprises four connectors and a driving bevel gear, and the four connectors correspond to the four connecting mechanisms in a one-to-one mode.

5. The injection mold for lampshade of automobile of claim 4, wherein: the connector includes screw rod, driven awl tooth, guide bar and carrier block, the base is opened there is the mounting groove, the screw rod rotates to be located in the mounting groove, open at the base middle part has the circular slot, initiative awl tooth rotates to be located the circular slot is interior and is connected with outside rotating device, screw rod one end is rotated and is stretched into the circular slot is connected with driven awl tooth, driven awl tooth with initiative awl tooth meshing matches, the guide bar is fixed to be located in the mounting groove and with carrier block sliding connection, coupling mechanism locates the carrier block upper end.

6. The injection mold for lampshade of automobile of claim 5, wherein: and corrugated covers matched with the mounting grooves are arranged at two ends of the carrying block.

7. The injection mold for the lamp cover of the automobile as set forth in claim 1, wherein: the joint spare also can comprise a fixed plate, a plurality of tongue and a plurality of expanding spring, and is a plurality of the tongue evenly is located the fixed plate upside, central disk middle part is equipped with the center pillar, and is a plurality of expanding spring evenly fixes and locates the center pillar and with a set of a plurality of tongue one-to-one, expanding spring with correspond the tongue is connected.

8. The injection mold for the lamp cover of the automobile as set forth in claim 7, wherein: the beveled end of the tongue is distal from the central disc.