CN220129394U

CN220129394U - Injection mold

Info

Publication number: CN220129394U
Application number: CN202320784101.7U
Authority: CN
Inventors: 蔡宝琦; 段同勋; 邱武华; 林联茂; 林宜成; 戴忠榕
Original assignee: Fuzhou Fuyao Mould Technology Co ltd
Current assignee: Fuzhou Fuyao Mould Technology Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-12-05
Anticipated expiration: 2033-04-11

Abstract

The utility model discloses an injection mold, which comprises a lower mold and an upper mold, wherein one side of the upper mold facing the lower mold is provided with a pressing surface for pressing a section bar; the edge of the pressing surface is provided with a flexible piece, the flexible piece protrudes outwards relative to the pressing surface, and the flexible piece can be propped against the surface of the section bar when the die is assembled, so that a space is reserved between the pressing surface and the section bar. The upper die is provided with a pressing surface towards one side of the lower die, and the side part of the pressing surface is provided with a flexible piece which protrudes out of the pressing surface. The mode that adopts the limit portion at last mould pressfitting face sets up the flexible piece for at last mould and lower mould in-process that pressfitting is laminated with the section bar that waits to pressfitting by the flexible piece, makes have the interval between pressfitting face and the section bar, thereby avoided the contact of section bar surface and pressfitting face and other structures of pressfitting face limit portion, play effectual guard action to the section bar surface when making the compound die, avoid the section bar to appear the problem of pressure wound at the mould pressfitting in-process of borduring.

Description

Injection mold

Technical Field

The utility model relates to the technical field of molds, in particular to an injection mold.

Background

With the rapid development of the automotive industry, the appearance of vehicles is also receiving increasing attention from vehicle manufacturers and users. Currently, the use of high-gloss aluminum guide rails to decorate automobiles in the field of automobile design has become a mainstream choice for the industry. A fixed quarter window for an automobile is formed by combining a high-gloss aluminum guide rail, a cladding and glass. Wherein, the appearance sensitivity of the high light guide rail is higher. When the highlight rail and glass are placed in a mold to be molded, the highlight rail is susceptible to the problem of crush injury due to external pressure, resulting in impaired appearance. Therefore, the current bag Bian Yage mold cannot avoid the crush injury generated in the production process, so that the fixed corner window yield is lower, and the market demand cannot be met.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the injection mold is provided, and the problem that the appearance of the profile is damaged due to the fact that the profile is crushed in the pressing process of the edge covering mold is avoided.

In order to solve the technical problems, the utility model adopts the following technical scheme:

an injection mold comprises a lower mold and an upper mold, wherein a profile pressing part is arranged on one side of the upper mold facing the lower mold; the side part of the section bar pressing part is provided with a flexible part, the flexible part is outwards protruded relative to the pressing surface of the section bar pressing part, and after the mold is closed, the flexible part is outwards protruded relative to the pressing surface and forms a first interval.

In some embodiments, the upper die is provided with a mounting slot for mounting the flexible member.

In some embodiments, the angle between the pressing direction of the mounting groove and the pressing surface of the profile pressing part is 0-180 degrees.

In some embodiments, the mounting slots comprise at least two sets of sub-mounting slots; the pressing direction of the sub-mounting grooves is different from the included angle between the pressing surfaces of the profile pressing parts.

In some embodiments, adjacent ones of the sub-mounting slots are in communication with each other.

In some embodiments, the flexible member is an interference fit with the mounting slot.

In some embodiments, the flexible piece is provided with at least two pressing surfaces, and the two pressing surfaces are respectively pressed against two ends of the surface of the profile in the width direction.

In some embodiments, the first spacing ranges from 0.08mm to 0.2mm.

In some embodiments, the flexible member is a continuous seal strip.

In some embodiments, the upper die and the lower die are respectively provided with an injection groove to form a hemming injection cavity.

The utility model has the beneficial effects that: the upper die is provided with a pressing surface towards one side of the lower die, and the side part of the pressing surface of the pressing part is provided with a flexible piece, so that the flexible piece protrudes out of the pressing surface. In the process of upper die and lower die pressing, the flexible piece is attached to the profile to be pressed, so that a gap is reserved between the pressing surface of the profile pressing part and the profile, contact between the surface of the profile and the pressing surface of the profile pressing part and other structures at the edge of the profile pressing part is avoided, the surface of the profile is effectively protected during die assembly, and the problem that the profile is crushed in the pressing process of the edge covering die is avoided.

Drawings

FIG. 1 is a block diagram of an injection mold in an embodiment of the utility model;

FIG. 2 is a block diagram of an upper mold placement section of an injection mold in an embodiment of the utility model;

FIG. 3 is a block diagram of an upper mold of an injection mold according to an embodiment of the present utility model;

FIG. 4 is an enlarged view of a portion of the article labeled A in FIG. 3;

FIG. 5 is an enlarged view of a portion of the section labeled B in FIG. 3;

FIG. 6 is a schematic cross-sectional view of the plane labeled A-A in FIG. 3;

FIG. 7 is an enlarged view of a portion of the section marked C in FIG. 6;

description of the reference numerals:

1. an upper die; 11. a pressing part; 12. a flexible member; 13. a mounting groove; 131. a sub-mounting groove; 14. an injection molding groove; 2. a lower die; 3. a highlight guide rail; 4. wrapping edges; 5. glass.

Detailed Description

In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.

The utility model takes the connection between the high light guide rail and the glass as an example, introduces the structure of the injection mold and the use mode thereof, and the injection mold provided by the utility model is suitable for the connection between the high light bar and the glass, and specifically:

currently, injection molds for high gloss rail to glass bonding typically include an upper mold and a lower mold. The high light guide rail and glass are placed on a lower die, the surface of the high light guide rail faces one side of an upper die, and then the upper die and the lower die are clamped. In the mold closing process, the upper mold is contacted with the high light guide rail and then applies pressure to the high light guide rail, and the high light guide rail is easy to crush when being subjected to external pressure due to the smooth surface of the high light guide rail.

Based on the above, the utility model provides an injection mold, which can solve the problem of crush injury to a profile in the pressing process of an upper mold and the profile.

Referring to fig. 1-3, an injection mold comprises a lower mold and an upper mold, wherein a profile pressing part is arranged on one side of the upper mold facing the lower mold; the side part of the section bar pressing part is provided with a flexible part, the flexible part is outwards protruded relative to the pressing surface of the section bar pressing part, and after the mold is closed, the flexible part is outwards protruded relative to the pressing surface and forms a first interval. And placing the section bar to be bound in a lower die, and then closing the upper die and the lower die and then performing injection molding to integrate the section bars.

It is understood that the pressing surface is provided on the side of the upper die facing the lower die, and the flexible member is provided on the edge of the pressing surface so as to protrude from the pressing surface. The mode that adopts the limit portion at last mould pressfitting face sets up the flexible piece for at last mould and lower mould in-process that pressfitting was pressed together by flexible piece and the section bar laminating of waiting to pressfitting, make have the interval between section bar pressfitting portion's the pressfitting face and the section bar, thereby avoided section bar surface and section bar pressfitting portion pressfitting face and the contact of other structures of section bar pressfitting portion limit portion, play effectual guard action to the section bar surface when making the compound die, avoid the section bar to appear the problem of pressure wound at the mould pressfitting in-process of borduring.

In some embodiments, the upper die is provided with a mounting slot for mounting the flexible member. In this way, the mounting groove is formed in the upper die, and the flexible piece is arranged in the mounting groove, so that the flexible piece is fixed in the mounting groove, displacement of the flexible piece in the pressing process is avoided, and a more effective pressing effect is achieved.

In some embodiments, the angle between the pressing direction of the mounting groove and the pressing surface of the profile pressing part is 0-180 degrees. In this way, through forming the contained angle between the pressing direction of mounting groove and the pressfitting face of section bar pressfitting portion to can be according to the setting angle of section bar pressfitting portion's pressfitting face's shape adjustment mounting groove, set up the flexible piece in the mounting groove after, the flexible piece presses the direction can with pressfitting face assorted, make the section bar of waiting the pressfitting of pressing of the laminating end laminating more of supporting of flexible piece, play effectual pressing effect.

In some embodiments, the mounting slots comprise at least two sets of sub-mounting slots; and the pressing direction of the sub-mounting grooves is different from the included angle between the pressing surfaces of the profile pressing parts. In this way, the mounting grooves are formed by arranging the plurality of groups of sub-mounting grooves, and the setting angles of the different sub-mounting grooves relative to the pressing surfaces of the profile pressing parts are different, so that after the flexible pieces are arranged in the sub-mounting grooves, the flexible pieces in the plurality of groups of sub-mounting grooves at the edge parts of the pressing surfaces of the profile pressing parts are respectively pressed against the profile to be pressed at different angles, and the lamination of the profile to be pressed is realized from each angle.

In some embodiments, adjacent ones of the sub-mounting slots are in communication with each other. In this way, by communicating the sub-mounting grooves, it is possible to more conveniently mount the flexible member and to continuously dispose the flexible member in the mounting groove.

In some embodiments, the flexible member is an interference fit with the mounting slot. In this way, through the interference fit of the flexible piece and the mounting groove, the flexible piece is stably fixed in the mounting groove, and the flexible piece is provided with a pressing surface with a larger area, so that an effective pressing effect is achieved.

In some embodiments, the flexible piece is provided with at least two pressing surfaces, and the two pressing surfaces are respectively pressed against two ends of the surface of the profile in the width direction. In this way, the flexible piece is arranged to at least comprise two mortgage surfaces, so that the flexible piece is respectively pressed against the section bar from the two ends of the surface of the section bar in the width direction, the whole stress balance of the section bar is ensured, the whole section bar is attached to the flexible piece, and a more effective protection effect is achieved.

In some embodiments, the first spacing ranges from 0.08mm to 0.2mm. In this way, by forming a reasonable distance between the pressing surface and the profile, the situation that the pressing is poor due to overlarge distance is avoided, and the situation that the profile is damaged due to overlarge distance is avoided.

In some embodiments, the flexible member is a continuous seal strip. In this way, the continuous sealing strip is adopted as the flexible piece, so that the flexible piece is continuously and uninterruptedly arranged at the edge of the pressing surface, and the flexible piece can be effectively attached to the section bar to be pressed, and the whole surface of the section bar to be pressed is effectively protected.

In some embodiments, the upper die and the lower die are respectively provided with an injection groove to form a hemming injection cavity. In this way, the upper die and the lower die are respectively provided with an injection groove, so that an edge-wrapping injection cavity is formed after the upper die and the lower die are clamped, and the sectional materials are combined through injection molding.

The injection mold of the embodiment can be suitable for injecting sealing glue for various sections, and can be applied to an automobile fixed corner window scene to realize the combination of glass and a high-gloss aluminum guide rail, and the following description is given by a specific embodiment:

example 1

Referring to fig. 1-2, an injection mold comprises a lower mold 2 and an upper mold 1, wherein a profile pressing portion 11 for pressing a profile is arranged on one side of the upper mold 1 facing the lower mold 2; the upper die 1 and the lower die 2 are respectively provided with an injection molding groove 14 to form an edge-covering injection molding cavity; the injection mold enables the edge covering 4 to combine the highlight guide rail 3 and the glass 5 after injection molding; the edge of the section bar pressing part 11 is provided with a flexible piece 12, the flexible piece 12 is outwards protruded relative to the pressing surface of the section bar pressing part 11, and the flexible piece 12 can be propped against the surface of the section bar when the die is assembled, so that a first interval is reserved between the pressing surface of the section bar pressing part 11 and the section bar; the first spacing ranges from 0.08 to 0.2mm, preferably from 0.15 to 0.18mm; the first spacing is set according to different shapes of the profile, such as 0.08mm, 0.15mm, 0.2mm, etc. Wherein the wrapping 4 comprises a thermoplastic elastomer (Thermoplastic elastomer, TPE), polyurethane (PU), ethylene propylene diene monomer (Ethylene Propylene Diene Monomer, EPDM), polyvinyl chloride (Polyvinyl chloride, PVC), etc. The flexible member 12 may be disposed at the edge of the profile pressing portion 11 in an adhesive manner. In another alternative, the flexible member 12 has at least two pressing surfaces, and the two pressing surfaces respectively press against two ends of the profile surface in the width direction. In an alternative mode, the continuous sealing strip with the rectangular cross section is made of a silica gel material with the hardness of 75, or is made of flexible materials such as rubber, thermoplastic elastomer and the like.

Referring to fig. 3-5, in another alternative manner, the upper mold 1 is provided with a mounting groove 13 for assembling the flexible member 12, and the mounting groove 13 is disposed towards the pressing surface of the profile pressing portion 11, so that the flexible member 12 can be protruded with respect to the pressing surface of the profile pressing portion 11 when disposed in the mounting groove 13, and an effective pressing effect is achieved. At the same time, preferably, the flexible member 12 is in interference fit with the mounting groove 13.

Referring to fig. 6-7, in an alternative manner, the mounting groove 13 includes at least two groups of sub-mounting grooves 131, and the pressing direction of the sub-mounting grooves 131 is different from the included angle between the pressing surface of the profile pressing portion 11; wherein, the included angle between the pressing direction of the mounting groove 13 and the pressing surface of the profile pressing part 11 is 0-180 degrees. As shown in fig. 7, the included angle between the left side of the sub-mounting groove 131 and the pressing surface of the profile pressing portion 11 is 90 °, and the included angle between the right side of the sub-mounting groove 131 and the pressing surface of the profile pressing portion 11 is about 150 ° and may be selected according to the positions where the mounting grooves 13 are provided, such as 15 °, 45 °, 135 °. The profile pressing parts 11 with different shapes can be arranged according to different profiles to be pressed, the installation grooves 13 with the angles matched with the angles of the profile pressing parts 11 are arranged on the profile pressing parts 11, and meanwhile, the depth, the width and the like of the installation grooves 13 can be set according to the specific shapes of the profile pressing parts 11 and the profiles, so that after the flexible piece 12 is installed in the installation grooves 13, the pressing ends of the flexible piece can be better attached to the profiles to be pressed.

Wherein, in an alternative manner, the sub-mounting grooves 131 are mutually communicated, and the included angles between the mortgage surfaces of the mutually communicated sub-mounting grooves 131 and the profile pressing part 11 are smoothly changed; the uneven stress of the flexible member 12 at the angle abrupt change position caused by the abrupt change of the angle between the sub-mounting grooves 131 is avoided, so that the flexible member 12 is damaged.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.

Claims

1. An injection mold comprises a lower mold and an upper mold, and is characterized in that,

a section bar pressing part is arranged on one side of the upper die, which faces the lower die;

the side part of the section bar pressing part is provided with a flexible part, the flexible part is outwards protruded relative to the pressing surface of the section bar pressing part, and after the mold is closed, the flexible part is outwards protruded relative to the pressing surface and forms a first interval.

2. An injection mold as claimed in claim 1, wherein the upper mold is provided with a mounting groove for fitting the flexible member.

3. An injection mould according to claim 2, wherein the angle between the pressing direction of the mounting groove and the pressing surface of the profile pressing part is 0 ° -180 °.

4. An injection mold as claimed in claim 2 wherein said mounting slots comprise at least two sets of sub-mounting slots;

the pressing direction of the sub-mounting grooves is different from the included angle between the pressing surfaces of the profile pressing parts.

5. An injection mold as claimed in claim 4 wherein adjacent ones of said sub-mounting grooves are in communication with each other.

6. An injection mold as claimed in claim 2 wherein said flexible member is an interference fit with said mounting groove.

7. An injection mold according to claim 1, wherein the flexible member has at least two pressing surfaces, and the two pressing surfaces are pressed against both ends of the surface of the profile in the width direction.

8. An injection mold as claimed in claim 1, wherein said first pitch is in the range of 0.08-0.2mm.

9. An injection mold as claimed in claim 1 wherein said flexible member is a continuous sealing strip.

10. An injection mold as claimed in claim 1 wherein said upper and lower molds each have an injection groove forming a hemmed injection cavity.