CN214188208U

CN214188208U - Injection mold for automobile exterior trim strip

Info

Publication number: CN214188208U
Application number: CN202023051290.2U
Authority: CN
Inventors: 邓德权; 甘明亮
Original assignee: Kunshan Feiben Plastic Mould Co ltd
Current assignee: Kunshan Feiben Plastic Mould Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-09-14
Anticipated expiration: 2030-12-17

Abstract

The utility model relates to the technical field of automobile part processing equipment, in particular to an injection mold for automobile exterior trim strips, which solves the defects in the prior art and comprises a base and an upper mold, wherein the top of the base is fixed with a mold foot through a bolt, the top of the mold foot is connected with a lower mold through a hexagon screw, the upper mold and the lower mold are oppositely arranged to form a cavity, the lower mold is also sequentially provided with a chute, an inner groove and a core-pulling slideway, the bottom of the upper mold is provided with symmetrically arranged grooves, through the arrangement of structures such as a connecting rod, a positioning slider and a positioning groove, the upper mold drives the connecting rod to rotate when closing the mold, the positioning slider is matched and positioned with the positioning groove through the action of a connecting rod mechanism, the mold closing precision of the mold is improved, through the arrangement of a limiting plate and a limiting hole, when a mold core is embedded into the cavity, the feeding amount of an oil cylinder is limited by the limiting hole, therefore, the embedded position of the core is positioned, and the core is prevented from deviating.

Description

Injection mold for automobile exterior trim strip

Technical Field

The utility model relates to an automobile parts processing equipment technical field especially relates to an injection mold for automotive exterior trim strip.

Background

The injection mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and accurate dimensions, and the injection molding is a processing method used for batch production of parts with complex shapes, in particular to a method for injecting heated and melted plastics into a mold cavity from an injection molding machine at high pressure and obtaining a formed product after cooling and solidification.

At present, the injection mold for the automobile exterior trim strip has the following defects: 1. the injection mold is positioned only by the guide pillar and the guide sleeve, so that the positioning precision is low; 2. the insert position of the core is not assisted by positioning, so that the position of the core is deviated; both of the above defects affect the molding quality of the product, resulting in molding failure.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing an injection mold for an automobile outer decorative strip.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an injection mold for automotive exterior trim strip, includes the base and goes up the mould, the top of base is passed through the bolt fastening and is had the mould foot, there is the lower mould at the top of mould foot through hexagonal screw connection, it sets up the formation die cavity relatively with the lower mould to go up the mould, and still seted up spout, inside groove and the slide of loosing core on the lower mould in proper order, the recess of symmetrical arrangement is seted up to the bottom of going up the mould, the inner wall activity of recess articulates there is the connecting rod, and the other end activity of connecting rod articulates there is the location slider, the location slider with spout sliding connection, the bottom welding of one of them location slider has the connecting plate, the connecting plate is located the inside of inside groove, the inside of the slide of loosing core is slided and is provided with the slider of loosing core, one side of the slider of loosing core is equipped with the core through the screw.

Preferably, the end part of the sliding groove is provided with a positioning groove, and the positioning groove is matched with the positioning sliding block.

Preferably, one of the chutes is communicated with the inner groove and the inside of the core-pulling slide, the core-pulling slide is communicated with the inside of the cavity, a support is fixed on one side of the lower die through screws, an oil cylinder is fixedly mounted at the top of the support through bolts, a piston rod is arranged inside the oil cylinder, the other end of the piston rod is connected with a push rod through screws, and the other end of the push rod is fixedly connected with one side of the core-pulling slide block through nut bolts.

Preferably, a dovetail groove is formed in the bottom wall of the core pulling slide way, and the core pulling slide block is connected with the dovetail groove in a sliding mode.

Preferably, a limiting hole is formed in the connecting plate, the push rod and the limiting hole are coaxially arranged, and the push rod penetrates through the limiting hole.

Preferably, the outer side of the push rod is provided with a limiting plate of an integrally formed structure, and the limiting plate is matched with the limiting hole.

The utility model has the advantages that:

1. the utility model discloses in through the setting of connecting rod, location slider and constant head tank isotructure, when the compound die, utilize last mould self to drive the connecting rod and rotate, make location slider and constant head tank cooperate the location through the link mechanism action, promote the compound die precision of mould.

2. The utility model discloses in through the setting of limiting plate and spacing hole, when the core buries the die cavity inside, utilize spacing hole to limit the feeding volume of hydro-cylinder to fix a position the embedded position of core, avoid the core to take place the skew.

To sum up, the utility model provides a compound die location precision of mould and the location precision of core to this ensures the shaping quality of product, and then improves injection mold's yield, has stronger practicality.

Drawings

Fig. 1 is a front view of an injection mold for an automotive exterior trim panel according to the present invention;

fig. 2 is a schematic structural view of the injection mold for the automobile exterior trim strip after being closed;

fig. 3 is an enlarged view of a position a of the injection mold for the automotive exterior trim panel according to the present invention;

fig. 4 is a schematic view of another state of the injection mold for the exterior trim of the automobile provided by the present invention after closing the mold;

fig. 5 is the enlarged view of the position B of the injection mold for the exterior trim of the vehicle provided by the utility model.

In the figure: the core drawing device comprises a base 1, a die foot 2, a lower die 3, an upper die 4, a groove 5, a connecting rod 6, a positioning groove 7, a positioning slide block 8, a sliding chute 9, a die cavity 10, an oil cylinder 11, a piston rod 12, a bracket 13, a limiting plate 14, a core drawing slide block 15, a core 16, an internal groove 17, a push rod 18, a limiting hole 19, a connecting plate 20 and a core drawing slideway 21.

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.

Referring to fig. 1-5, an injection mold for an automotive exterior trim strip comprises a base 1 and an upper mold 4, wherein a mold foot 2 is fixed on the top of the base 1 through a bolt, the top of the mold foot 2 is connected with a lower mold 3 through a hexagon screw, the upper mold 4 and the lower mold 3 are oppositely arranged to form a cavity 10, the lower mold 3 is further sequentially provided with a chute 9, an inner groove 17 and a core-pulling slideway 21, the bottom of the upper mold 4 is provided with symmetrically arranged grooves 5, the inner wall of each groove 5 is movably hinged with a connecting rod 6, the other end of each connecting rod 6 is movably hinged with a positioning slider 8, the positioning sliders 8 are slidably connected with the chute 9, the bottom of one positioning slider 8 is welded with a connecting plate 20, the connecting plate 20 is positioned inside the inner groove 17, the core-pulling slideway 21 is slidably provided with a core-pulling slider 15, one side of the core-pulling slider 15 is provided with a mold core 16 through a screw, and the connecting rod 6, the positioning slider 8, the positioning groove 7 and other structures are arranged, when the mold is closed, the upper mold 4 drives the connecting rod 6 to rotate, the positioning slide block 8 and the positioning groove 7 are positioned in a matched mode through the action of the connecting rod mechanism, the mold closing precision of the mold is improved, through the arrangement of the limiting plate 14 and the limiting hole 19, when the mold core 16 is embedded into the cavity 10, the feeding amount of the oil cylinder 11 is limited through the limiting hole 19, the embedding position of the mold core 16 is positioned, the deviation of the mold core 16 is avoided, the mold closing positioning precision of the mold and the positioning precision of the mold core 16 are improved, the molding quality of a product is ensured, the yield of the injection mold is improved, the practicability is high, the positioning groove 7 is arranged at the end part of the sliding groove 9, the positioning groove 7 is matched with the positioning slide block 8, one sliding groove 9 is communicated with the inner groove 17 and the inner part of the core-pulling sliding way 21, the core-pulling sliding way 21 is communicated with the inner, there is hydro-cylinder 11 at the top of support 13 through bolt fixed mounting, the inside of hydro-cylinder 11 is provided with piston rod 12, there is push rod 18 at the other end of piston rod 12 through screwed connection, the other end of push rod 18 passes through nut and bolt and one side fixed connection of the slider of loosing core 15, the dovetail has been seted up on the diapire of slide 21 of loosing core, slider of loosing core 15 and dovetail sliding connection, spacing hole 19 has been seted up on connecting plate 20, push rod 18 is coaxial setting with spacing hole 19, and push rod 18 passes the inside of spacing hole 19, the outside of push rod 18 is provided with limiting plate 14 of integrated into one piece structure, limiting plate 14 and spacing hole 19 phase-match.

In this embodiment, the working principle is as follows: an upper die 4 is fixedly arranged on a movable template of an injection molding machine, a base 1 is fixedly arranged on a fixed template of the injection molding machine, the movable template is pushed to move by a driving device of the injection molding machine, so that the upper die 4 and a lower die 3 are driven to be matched, please refer to fig. 1, which is a schematic diagram before mould matching, when the die starts to be matched, the upper die 4 moves downwards, a connecting rod 6 rotates under the push of the upper die 4, the length of the connecting rod 6 in the X-axis direction is changed, and further, a positioning slide block 8 is extruded, so that the positioning slide block 8 slides towards two sides, when the die matching is completed, please refer to fig. 2 and fig. 4, the positioning slide block 8 is embedded into a positioning groove 7, the position of the matched die is positioned, and the die matching precision is improved;

further, after the mold closing is completed, due to the special shape design of the automobile outer trim strip, the core 16 needs to be embedded to enable a product to have a relative hole groove after the product is formed, at the moment, the piston rod 12 inside the oil cylinder 11 extends out, the piston rod 12 pushes the push rod and the core-pulling slide block 15 to slide inside the core-pulling slide rail 21, when the core-pulling slide block 15 drives the core 16 to enter the cavity 10, the limiting plate 14 just moves to the inside of the limiting hole 19, the connecting plate 20 blocks the limiting plate 14 to position the position of the core 16, the embedding position of the core 16 is ensured to be accurate, and then the injection molding machine injects raw materials into the cavity 10 from a pouring gate on the mold through an injection device to complete the product forming;

in addition, after the product is injection molded, the oil cylinder 11 drives the piston rod 12 to reset, so that the core-pulling slider 15 pulls the mold core 16 to separate from the product, core-pulling action is completed, after core-pulling is completed, the upper mold 4 slides upwards to open the mold, and then the ejector plate and the ejector pin in the upper mold are matched to eject the molded product, namely, the whole product processing process is completed.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The injection mold for the automobile exterior trim strip comprises a base (1) and an upper mold (4), and is characterized in that the top of the base (1) is fixed with a mold foot (2) through a bolt, the top of the mold foot (2) is connected with a lower mold (3) through a hexagon screw, the upper mold (4) and the lower mold (3) are oppositely arranged to form a cavity (10), a sliding groove (9), an inner groove (17) and a core-pulling slideway (21) are sequentially formed in the lower mold (3), symmetrically-arranged grooves (5) are formed in the bottom of the upper mold (4), a connecting rod (6) is movably hinged to the inner wall of each groove (5), a positioning sliding block (8) is movably hinged to the other end of each connecting rod (6), each positioning sliding block (8) is slidably connected with the corresponding sliding groove (9), a connecting plate (20) is welded to the bottom of one positioning sliding block (8), and the connecting plate (20) is located inside the inner groove (17), the inside of the core-pulling slide way (21) is provided with a core-pulling slide block (15) in a sliding manner, and one side of the core-pulling slide block (15) is provided with a core (16) through a screw.

2. An injection mold for automotive exterior trim panels according to claim 1, wherein the end of the slide groove (9) is provided with a positioning groove (7), and the positioning groove (7) is matched with the positioning slide block (8).

3. The injection mold for the automotive exterior trim strip as claimed in claim 1, wherein one sliding groove (9) is communicated with the inner groove (17) and the inside of the core-pulling sliding way (21), the core-pulling sliding way (21) is communicated with the inside of the cavity (10), a support (13) is fixed on one side of the lower mold (3) through screws, an oil cylinder (11) is fixedly mounted at the top of the support (13) through bolts, a piston rod (12) is arranged inside the oil cylinder (11), the other end of the piston rod (12) is connected with a push rod (18) through screws, and the other end of the push rod (18) is fixedly connected with one side of the core-pulling sliding block (15) through nut bolts.

4. The injection mold for the automotive exterior trim strip according to claim 1, wherein a dovetail groove is formed in the bottom wall of the core-pulling slide way (21), and the core-pulling slide block (15) is slidably connected with the dovetail groove.

5. The injection mold for the automotive exterior trim strip as claimed in claim 3, wherein the connecting plate (20) is provided with a limiting hole (19), the push rod (18) and the limiting hole (19) are coaxially arranged, and the push rod (18) penetrates through the limiting hole (19).

6. The injection mold for the automotive exterior trim panel according to claim 5, wherein a limiting plate (14) of an integrally formed structure is arranged on the outer side of the push rod (18), and the limiting plate (14) is matched with the limiting hole (19).