CN217073226U

CN217073226U - Demoulding structure of injection mould for automobile oil can cover

Info

Publication number: CN217073226U
Application number: CN202220358519.7U
Authority: CN
Inventors: 诸南扬; 王克福; 杨平; 蔡盛
Original assignee: Ningbo Qiaoshi Mould Technology Co ltd
Current assignee: Ningbo Qiaoshi Mould Technology Co ltd
Priority date: 2022-02-22
Filing date: 2022-02-22
Publication date: 2022-07-29
Anticipated expiration: 2032-02-22

Abstract

The utility model provides a demoulding structure of an injection mould for an automobile oil can cover, which comprises a front mould and a front mould insert fixed on the front mould, wherein a first slide is arranged on one side of the front mould insert in a sliding way, a slidable second slide is symmetrically arranged on two sides of the first slide, and the sliding directions of the first slide and the second slide are vertical; a first core rod is arranged at one end of the first line position, which faces the front mold insert, and the first core rod penetrates through the second line position and is used for forming a pipeline of the oil can cover; a tooth twisting cutter is rotatably arranged on the front die insert, a second core rod is arranged at the center of the tooth twisting cutter, a slide insert is arranged on one side of the second core rod, and the slide insert can slide relative to the tooth twisting cutter; the utility model provides a pair of automobile oil can lid injection mold's demoulding structure has overcome the defect that current oil can lid drawing of patterns difficulty and drawing of patterns quality are poor.

Description

Demoulding structure of injection mould for automobile oil can cover

Technical Field

The utility model relates to an injection mold field especially relates to a car oilcan lid injection mold's demoulding structure.

Background

An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a processing method used for mass production of parts with complex shapes, and particularly relates to a method for injecting heated and melted plastic into a mold cavity from an injection molding machine at high pressure, and obtaining a formed product after cooling and solidification. The injection mold mainly comprises a front mold and a rear mold, wherein the front mold is installed on a fixed seat plate of the injection molding machine, and the rear mold is installed on a movable seat plate of the injection molding machine. During injection molding, the front mold and the rear mold are closed, and plastic enters a mold cavity through a nozzle. When the mold is opened, the front mold and the rear mold are separated, and then the ejection mechanism acts to eject the injection molding piece.

Referring to fig. 1, the cover of the automobile oil can is an important part of the automobile oil can, the upper end of the cover of the automobile oil can is provided with a pipeline, the inner wall of the cover of the automobile oil can needs to be twisted, and the inner wall of the cover of the automobile oil can is provided with an inner cutting groove.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the problem that a car oilcan lid injection mold's demoulding structure is provided to overcome the defect that current oilcan lid drawing of patterns difficulty and drawing of patterns quality are poor.

(II) technical scheme

In order to solve the technical problem, the utility model provides a demoulding structure of an injection mould for an oil can cover of an automobile, which comprises a front mould and a front mould insert fixed on the front mould, wherein a first slide is slidably arranged on one side of the front mould insert, a slidable second slide is symmetrically arranged on two sides of the first slide, and the sliding directions of the first slide and the second slide are vertical; a first core rod is arranged at one end of the first line position, which faces the front mold insert, and the first core rod penetrates through the second line position and is used for forming a pipeline of the oil can cover; a tooth twisting cutter is rotatably arranged on the front die insert, a second core rod is arranged at the center of the tooth twisting cutter, a slide insert is arranged on one side of the second core rod, and the slide insert can slide relative to the tooth twisting cutter; during demolding, the slide insert firstly retracts into the tooth twisting cutter, then the tooth twisting cutter rotates a tooth twisting, and finally the first slide insert and the second slide insert are demolded outwards. The injection mold has the advantages of simple structure, good molding quality, simple and convenient demolding and good demolding quality.

Furthermore, a front mold seat plate capable of sliding in the vertical direction is installed on the upper side of the front mold, a front mold core is fixed at the lower end of the front mold seat plate, and the front mold core corresponds to the front mold insert and is located on the inner side of the second slide. And an inclined guide post is arranged on the front mold base plate at a position corresponding to the first slide position and the second slide position, and the inclined guide post is used for driving the first slide position and the second slide position to slide outwards for demolding when the mold is opened. When the mold is opened, the front mold base plate drives the front mold core to slide upwards to separate from the glue position, and the inclined guide pillar drives the first slide and the second slide to separate from the glue position.

Furthermore, a drawing core shaft is sleeved in the threading cutter, the upper end of the drawing core shaft is fixed with the slide insert, and a through groove for the slide insert to pass through is formed in the threading cutter. The lower end of the front die is fixed with a guide seat, and the lower end of the threading cutter is in threaded connection with the guide seat. The tooth reaming cutter is connected with the core pulling shaft through a flat key; and during tooth twisting, the core-pulling shaft drives the tooth twisting cutter to rotate the tooth twisting.

Further, a rear die is installed on the lower side of the front die, and the lower end of the core pulling shaft is connected with the rear die; the rear die is characterized in that a rear die base plate is arranged between the rear die and the front die, the front die abuts against the rear die base plate, a spring is arranged between the rear die base plate and the rear die, and the spring always enables the rear die base plate to have the tendency of moving upwards. The rear die is provided with a U-shaped seat in a sliding mode, the rear die base plate is fixed to the upper end of the U-shaped seat, and the lower end of the second mandrel bar is connected with the U-shaped seat.

Furthermore, a rack is arranged in the rear die in a sliding manner along the horizontal direction, a transmission gear is arranged at the lower end of the core pulling shaft, and the rack is in driving connection with the transmission gear; and an oil cylinder is arranged on the outer side of the rear die, and the rack is connected with the oil cylinder.

Furthermore, square irons are symmetrically arranged on two sides of the lower end of the rear die, and the U-shaped seat is positioned between the two square irons; a plurality of thimbles are installed to annular equidistant in the second core bar, install the thimble board between two square irons, the lower extreme of thimble passes the U-shaped seat with the thimble board is connected.

(III) advantageous effects

The utility model provides a demoulding structure of an injection mould for an automobile oil can cover, which is characterized in that the outline of the oil can cover is formed by matching a first slide, a second slide, a first core bar, a second core bar and a front mould core, the inner thread of the oil can cover is formed by a thread cutter, the inner cutting groove of the oil can cover is formed by a slide insert, and the forming quality is good; when demoulding, under the action of the spring, the rear die base plate, the front die, the tooth twisting cutter and the product are jointly popped upwards, at the moment, the core pulling shaft slides downwards relative to the tooth twisting cutter, and the slide insert retracts into the tooth twisting cutter and is separated from the glue position of the product; then, a rack is driven by an oil cylinder, the rack drives a core-pulling shaft to rotate through a gear, the core-pulling shaft drives a thread reaming cutter to rotate a reaming tooth, the thread reaming cutter gradually retracts under the action of a guide seat to be separated from a product glue position, finally, a front die base plate slides upwards, a front die core is separated from the glue position, meanwhile, an inclined guide post drives a first line position and a second line position to be demoulded, and then an ejector plate drives an ejector pin to eject the product; the injection mold is simple in structure, good in forming quality, simple and convenient in demolding and good in demolding quality, and overcomes the defects that an existing oil can cover is difficult to demold and poor in demolding quality.

Drawings

FIG. 1 is a perspective view of an oil can lid with a demolding structure of an injection mold for an automobile oil can lid of the present invention;

FIG. 2 is a perspective view of a mold release structure of an injection mold for a lid of an automotive oil can according to the present invention;

FIG. 3 is a perspective view of the injection mold for the oil can lid of an automobile, with the front mold base plate removed, according to the present invention;

FIG. 4 is a perspective view of the injection mold for the oil can lid of an automobile, with the front mold base plate and a part of slide removed;

FIG. 5 is a schematic structural view of a mold release structure of an injection mold for a lid of an automotive oil can according to the present invention;

FIG. 6 is a schematic structural view showing the connection of the tooth cutter, the core-pulling shaft, the slide insert and the second core bar of the demolding structure of the injection mold for the automobile oil can cover of the present invention;

FIG. 7 is a perspective view of the connection of the tooth cutter, the core-pulling shaft, the slide insert and the second core bar of the demolding structure of the injection mold for the automobile oil can cover of the present invention;

FIG. 8 is an exploded view of the tooth cutter, the core-pulling shaft, the slide insert and the second core bar of the injection mold for the oil can lid of the automobile according to the present invention;

FIG. 9 is an exploded view of a lower portion of a mold release structure of an injection mold for a vehicle oil can lid of the present invention;

the corresponding part names for the various reference numbers in the figures are: 1. a front mold; 2. a front mold insert; 3. a first column bit; 4. a second row of bits; 5. a first core bar; 6. a tooth cutter; 7. a second core bar; 8. a slide insert; 9. a front mold base plate; 10. a front mold core; 11. an inclined guide post; 12. drawing the mandrel; 13. a guide seat; 14. a flat bond; 15. a rear mold; 16. a rear mold backing plate; 17. a spring; 18. a U-shaped seat; 19. a rack; 20. a transmission gear; 21. an oil cylinder; 22. square iron; 23. a thimble; 24. an ejector plate; 25. an oil can cover; 601. a through groove.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 2 to 9, the utility model provides a demoulding structure of an injection mould for a vehicle oil can cover, comprising a front mould 1 and a front mould insert 2 fixed on the front mould 1, wherein one side of the front mould insert 2 is slidably provided with a first row position 3, the first row position 3 can slide along the horizontal direction, two sides of the first row position 3 are symmetrically provided with a slidable second row position 4, the second row position 4 can slide along the horizontal direction, and the sliding directions of the first row position 3 and the second row position 4 are vertical; one end of the first row position 3 facing the front mold insert 2 is provided with a first core rod 5, and the first core rod 5 penetrates through the second row position 4 and is used for forming a pipeline of the oil can cover. A front mold seat plate 9 capable of sliding in the vertical direction is installed on the upper side of the front mold 1, a front mold core 10 is fixed at the lower end of the front mold seat plate 9, and the front mold core 10 corresponds to the front mold insert 2 and is located on the inner side of the second slide 4. The front die base plate 9 is provided with an inclined guide post 11 at a position corresponding to the first row position 3 and the second row position 4, and the inclined guide post 11 is used for driving the first row position 3 and the second row position 4 to slide outwards for demoulding when the die is opened.

Referring to fig. 5 to 8, the front mold insert 2 is rotatably provided with the threading cutter 6, the lower end of the front mold 1 is fixed with the guide seat 13, the lower end of the threading cutter 6 is in threaded connection with the guide seat 13, and the guide seat 13 is used for guiding the threading cutter to slide downwards when the threading cutter rotates to thread, so as to gradually separate from the product glue position. A second mandrel bar 7 is installed at the center of the threading cutter 6, a slide insert 8 is installed on one side of the second mandrel bar 7, the slide insert 8 is mainly used for forming an inner cutting groove of the oil can cover 25, and the slide insert 8 can slide relative to the threading cutter 6. During demolding, the slide insert 8 firstly retracts into the tooth twisting cutter 6, then the tooth twisting cutter 6 rotates to twist teeth, and finally the first slide insert 3 and the second slide insert 4 slide outwards for demolding.

Referring to fig. 7 and 8, a core pulling shaft 12 is sleeved in the thread cutter 6, a thread pulling part is arranged at the upper part of the thread cutter 6 in an annular shape, the upper end of the core pulling shaft 12 is sleeved in the thread cutter 6, the upper end of the core pulling shaft 12 is fixed with the slide insert 8, and a through groove 601 through which the slide insert 8 can pass is arranged on the thread cutter 6. Wherein, the tooth reaming cutter 6 is connected with the core-pulling shaft 12 through a flat key 14; when the teeth are twisted, the tooth twisting knife 6 is driven to rotate through the core pulling shaft 12.

Referring to fig. 2, 5 and 9, a rear mold 15 is installed at the lower side of the front mold 1, and the lower end of the core pulling shaft 12 is connected with the rear mold 15; a rear die backing plate 16 is arranged between the rear die 15 and the front die 1, the front die 1 abuts against the rear die backing plate 16, a spring 17 is arranged between the rear die backing plate 16 and the rear die 15, and the spring 17 always enables the rear die backing plate 16 to move upwards. When the die is closed, the spring 17 is compressed, the front die 1, the rear die cushion plate 16 and the rear die 15 are abutted in sequence, and the slide insert 8 penetrates through and protrudes out of the thread cutter 6 to form an inner cutting groove; after the mold is opened, under the action of the spring 17, the rear mold backing plate 16, the front mold 1, the threading cutter 6 and the product are ejected upwards, at the moment, the core-pulling shaft 12 slides downwards relative to the threading cutter 6, and the slide insert 8 retracts into the threading cutter 6 to separate from the glue position. The rear die 15 is provided with a U-shaped seat 18 in a sliding way, a rear die backing plate 16 is fixed at the upper end of the U-shaped seat 18, and the lower end of the second mandrel bar 7 is connected with the U-shaped seat 18.

Referring to fig. 2 and 9, a rack 19 is installed in the rear mold 15 in a sliding manner along the horizontal direction, a transmission gear 20 is installed at the lower end of the core pulling shaft 12, and the rack 19 is in driving connection with the transmission gear 20; an oil cylinder 21 is arranged on the outer side of the rear die 15, and the rack 19 is connected with the oil cylinder 21.

Referring to fig. 2 and 5, square irons 22 are symmetrically installed on two sides of the lower end of the rear mold 15, and the U-shaped seat 18 is located between the two square irons 22; a plurality of ejector pins 23 are annularly and equidistantly arranged in the second core bar 7, an ejector pin plate 24 is arranged between the two square irons 22, and the lower ends of the ejector pins 23 penetrate through the U-shaped seat 18 and are connected with the ejector pin plate 24.

After injection molding is finished, under the action of a spring, the rear die base plate, the front die, the tooth reaming cutter, the second core bar and the product are jointly popped upwards, at the moment, the core-pulling shaft slides downwards relative to the tooth reaming cutter, and the slide insert retracts into the tooth reaming cutter and is separated from the glue position of the product; then, a rack is driven by an oil cylinder, the rack drives a core-pulling shaft to rotate, the core-pulling shaft drives a thread cutter to rotate a thread, and the thread cutter is gradually retracted under the action of a guide seat to be separated from a product glue position; and finally, the front die holder plate slides upwards, the front die core is separated from the glue position, the inclined guide post drives the first line position and the second line position to slide, the first core bar and the second line position are separated from the glue position, and the ejector pin plate drives the ejector pins to eject the product.

The demoulding structure of the injection mould for the automobile oil can cover provided by the embodiment has the advantages of simple structure, good forming quality, simple and convenient demoulding, good demoulding quality and capability of overcoming the defects of difficult injection demoulding and poor demoulding quality of the existing oil can cover.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a demoulding structure of car oilcan lid injection mold, includes front mould (1) and fixes front mould mold insert (2) on front mould (1), its characterized in that: a first slide (3) is slidably mounted on one side of the front mold insert (2), slidable second slides (4) are symmetrically mounted on two sides of the first slide (3), and the sliding directions of the first slide (3) and the second slides (4) are vertical; a first core rod (5) is arranged at one end, facing the front mold insert (2), of the first slide (3), and the first core rod (5) penetrates through the second slide (4) and is used for forming a pipeline of the oil can cover; a tooth twisting cutter (6) is rotatably mounted on the front die insert (2), a second core rod (7) is mounted at the center of the tooth twisting cutter (6), a slide insert (8) is mounted on one side of the second core rod (7), and the slide insert (8) can slide relative to the tooth twisting cutter (6); during demolding, the slide insert (8) retracts into the tooth twisting cutter (6), then the tooth twisting cutter (6) rotates to twist teeth, and finally the first slide insert (3) and the second slide insert (4) slide outwards to be demolded.

2. The mold release structure of an injection mold for an automobile oil can lid as set forth in claim 1, wherein: the upper side of the front die (1) is provided with a front die seat plate (9) capable of sliding in the vertical direction, the lower end of the front die seat plate (9) is fixed with a front die core (10), and the front die core (10) corresponds to the front die insert (2) and is located on the inner side of the second slide (4).

3. The mold release structure of an injection mold for an automobile oil can lid according to claim 2, characterized in that: and an inclined guide post (11) is arranged on the front mold seat plate (9) at a position corresponding to the first slide (3) and the second slide (4), and the inclined guide post (11) is used for driving the first slide (3) and the second slide (4) to slide outwards for demolding when the mold is opened.

4. The structure for releasing a mold for injection molding of a lid for an automotive oil can according to claim 1, wherein: a drawing core shaft (12) is sleeved in the threading cutter (6), the upper end of the drawing core shaft (12) is fixed with the slide insert (8), and a through groove (601) convenient for the slide insert (8) to pass through is arranged on the threading cutter (6).

5. The mold release structure of an injection mold for an automobile oil can lid as set forth in claim 1, wherein: the lower end of the front die (1) is fixed with a guide seat (13), and the lower end of the threading cutter (6) is in threaded connection with the guide seat (13).

6. The mold release structure of an injection mold for an automobile oil can lid according to claim 4, characterized in that: the tooth reaming cutter (6) is connected with the core pulling shaft (12) through a flat key (14); and during tooth twisting, the tooth twisting cutter (6) is driven to rotate through the core pulling shaft (12).

7. The mold release structure of an injection mold for an automobile oil can lid according to claim 6, characterized in that: a rear die (15) is mounted on the lower side of the front die (1), and the lower end of the core pulling shaft (12) is connected with the rear die (15); the rear die is characterized in that a rear die base plate (16) is installed between the rear die (15) and the front die (1), the front die (1) is abutted against the rear die base plate (16), a spring (17) is installed between the rear die base plate (16) and the rear die (15), and the spring (17) enables the rear die base plate (16) to move upwards all the time.

8. The mold release structure of an injection mold for an automobile oil can lid as set forth in claim 7, wherein: the rear die (15) is provided with a U-shaped seat (18) in a sliding mode, the rear die base plate (16) is fixed to the upper end of the U-shaped seat (18), and the lower end of the second mandrel bar (7) is connected with the U-shaped seat (18).

9. The mold release structure of an injection mold for an automobile oil can lid as set forth in claim 7, wherein: a rack (19) is arranged in the rear die (15) in a sliding manner along the horizontal direction, a transmission gear (20) is arranged at the lower end of the core pulling shaft (12), and the rack (19) is in driving connection with the transmission gear (20); an oil cylinder (21) is installed on the outer side of the rear die (15), and the rack (19) is connected with the oil cylinder (21).

10. The mold release structure of an injection mold for an automobile oil can lid according to claim 8, characterized in that: square irons (22) are symmetrically arranged on two sides of the lower end of the rear die (15), and the U-shaped seat (18) is located between the two square irons (22); a plurality of thimbles (23) are annularly and equidistantly installed in the second mandrel bar (7), an ejector plate (24) is installed between the two square irons (22), and the lower end of the thimble (23) penetrates through the U-shaped seat (18) to be connected with the ejector plate (24).