CN215039607U

CN215039607U - Vacuum mold for skylight glass edge covering forming

Info

Publication number: CN215039607U
Application number: CN202021704091.4U
Authority: CN
Inventors: 杨刚
Original assignee: Shanghai Qimeng Information Technology Co ltd
Current assignee: Shanghai Qimeng Information Technology Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-12-07
Anticipated expiration: 2030-08-14

Abstract

The utility model discloses a vacuum mold that is used for skylight glass to bordure and takes shape, the mould is for being used for sunroof glass to bordure the foaming shaping mould, including last mould benevolence and lower mould benevolence, go up mould benevolence and lower mould benevolence direct contact cooperation and form the die cavity, a serial communication port, the die cavity is the vacuum seal die cavity. The die is provided with an adjusting valve for adjusting the vacuum degree, and the adjusting valve is communicated with the inner cavity. The key point of the method is that a mould partial vacuum method is utilized, a sealing strip and a sealing ring are utilized to set a sealing area in a cavity of the skylight glass edge-wrapping mould, and a vacuum pump is used for vacuumizing the cavity to realize a vacuum forming process. The vacuum forming process ensures that the skylight glass edge-covering forming quality is more stable and reliable. The vacuum method of the mold cavity enables the vacuum forming process to be realized more easily. The vacuum forming process can be used for producing complex skylight glass edge wrapping forming, reduces subsequent steps of forming, saves forming materials and saves cost.

Description

Vacuum mold for skylight glass edge covering forming

Technical Field

The utility model relates to a vacuum mold for skylight glass bordures and takes shape belongs to sunroof glass bordures and takes shape technical field.

Background

The foaming forming of the automobile skylight glass edge wrapping is to inject 2 high polymer materials into a cavity of a mold at a high speed, and the 2 high polymer materials generate chemical reaction in the cavity of the mold to bond an iron frame on the glass.

When a polymer material is injected into a highly closed mold cavity at a high speed, gas is locally accumulated in the mold cavity and cannot be released to the outside. Meanwhile, the chemical reaction of the polymer material generates excessive gas. Therefore, the phenomenon of air bubbles or glue shortage can occur locally on the product, the appearance of the product is affected, and meanwhile, the air bubbles and the glue shortage can weaken the bonding strength of the frame and the glass, so that the risk that the skylight glass flies off from the roof of the automobile in the running process is caused.

Aiming at the phenomenon of generating bubbles and lacking glue due to gas accumulation, the prior art comprises the following steps:

1) an exhaust slider is provided. An exhaust slide block is arranged in a cavity part of the mold which is likely to generate gas accumulation, so that redundant gas is exhausted to the outside of the cavity, and the gas accumulation phenomenon is reduced. Because of the different shapes of the products, it is difficult for designers to accurately judge the position where the gas is accumulated and accurately design the position of the exhaust slider.

2) And arranging a flash bag. A flash bag is arranged in a cavity part of the mold which is likely to generate gas accumulation, so that the polyurethane material overflows a product cavity, and the phenomena of bubbles and glue shortage are reduced. However, the material is wasted, and the subsequent processing steps after molding are increased, which increases the cost.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that the phenomenon of bubble and scarce glue is produced because of gas gathering in the foaming forming process of borduring to current sunroof glass.

In order to solve the technical problem, the technical scheme of the utility model a be used for skylight glass to bordure fashioned vacuum mold is provided, the mould is for being used for sunroof glass to bordure the foaming fashioned mould, including last mould benevolence and lower mould benevolence, go up mould benevolence and lower mould benevolence direct contact cooperation and form the die cavity, its characterized in that, the die cavity is the vacuum seal die cavity.

The die is provided with an adjusting valve for adjusting the vacuum degree, and the adjusting valve is communicated with the inner cavity.

The key point of the method is that a mould partial vacuum method is utilized, a sealing strip and a sealing ring are utilized to set a sealing area in a cavity of the skylight glass edge-wrapping mould, and a vacuum pump is used for vacuumizing the cavity to realize a vacuum forming process.

The vacuum forming process ensures that the skylight glass edge-covering forming quality is more stable and reliable.

The vacuum method of the mold cavity enables the vacuum forming process to be realized more easily.

The vacuum forming process can produce complicated skylight glass edge covering forming.

The vacuum forming process reduces the subsequent steps of forming, saves forming materials and saves cost.

Drawings

FIG. 1 is a schematic view of the upper/lower mold cores of a vacuum mold; wherein, fig. 1(a) is a lower mold core, and fig. 1(b) is an upper mold core;

FIG. 2 is a partial sectional view of the vacuum mold shown in FIG. 1(b) taken at the gate of the section A-A;

FIG. 3 is a partial sectional view of the vacuum mold shown in FIG. 1(B) at the rear side vacuum suction port of the section B-B;

FIG. 4 is a partial sectional view of the right side slide of the vacuum mold shown in section C-C in FIG. 1 (b);

FIG. 5 is a partial sectional view of the vacuum mold shown in FIG. 1(b) at the position of the hanging lug glue sealing mechanism of the vacuum mold with the D-D section; wherein, fig. 5(a) is a sectional view, and fig. 5(b) is a perspective view of the structure shown in fig. 5 (a);

FIG. 6(a) is a sectional view taken at the section E-E of the insert shown in FIG. 1(b), FIG. 6(b) is a sectional view taken at the section F-F of the frame support shown in FIG. 1(b), FIG. 6(c) is a sectional view taken at the section G-G of the magnet shown in FIG. 1(b), and FIG. 6(d) is a sectional view taken at the section H-H of the glass support column shown in FIG. 1 (b);

fig. 7 is a schematic view of a regulating valve mounted on a vacuum mold.

Detailed Description

In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.

Examples

The utility model discloses technical scheme provides and uses the vacuum forming technique in the skylight glass is bordured and is taken shape. The vacuum forming technique is a technique in which a cavity of a mold is brought into a vacuum state, and then a forming material is injected into the cavity of the mold to perform forming in the vacuum state. The method avoids local accumulation of gas in the highly closed mold cavity, and simultaneously can release redundant gas generated by chemical reaction to the outside in time, thereby avoiding the phenomena of bubbles and glue shortage of products caused by the local accumulation of gas, enhancing the bonding strength of the frame and the glass and ensuring the safety of the skylight.

According to different methods for generating vacuum by a mold, the vacuum forming technology is divided into two types: a mold integral vacuum method and a mold cavity vacuum method. According to the process for forming the skylight glass edge and the characteristics of the mold, the scheme adopts a mold cavity vacuum method. The method is simple and convenient.

Drawing of a mold by vacuum method of mold cavity. To achieve vacuum in the mold cavity, a vacuum is provided in the lower portion of the mold.

1) Upper/lower core of the mold (inlet, rear, left and right side of the mold, insert)

2) Support system (frame support, glass support, magnet)

3) The sealing system of the hanging lug is arranged on the hanging lug,

4) an air pressure regulating system.

The mold pattern of the mold cavity vacuum method is shown in fig. 1, and comprises an upper mold core and a lower mold core, wherein the mold cavity of the mold is formed by directly contacting the upper mold core and the lower mold core, and the contact surface cannot be 100% attached because the upper mold core and the lower mold core are both iron, so that the vacuum cannot be ensured. The mold insert, the ejector pin and the support piece are arranged in a hole or a frame of the mold and are in contact with the outside, air leakage occurs, and vacuum cannot be guaranteed. In order to achieve the vacuum of the cavity part of the mold, a sealing strip or a sealing ring is arranged at the lower part of the mold to form a vacuum space.

The following description will be made by taking the glass in the mold as an example (when the glass is placed in the mold in the opposite manner to that when it is mounted on a vehicle, a corresponding vacuum structure is adopted)

An upper mold core and a lower mold core of the mold are shown in figure 1, sealing grooves are formed in an outer ring and an inner ring of a cavity of the upper mold core, sealing strips are arranged in the grooves and are 1.3-1.5mm higher than a parting surface, when the upper mold core and the lower mold core are contacted, the sealing strips are compressed by the iron parting surface of the upper mold core and the lower mold core, and the cavity surrounded by the sealing strips is vacuumized.

Fig. 2 is a schematic sectional view of the section A-A shown in fig. 1, and the rubber inlet of the rubber inlet insert is ensured to be airtight by a sealing ring. FIG. 3 is a schematic sectional view B-B shown in FIG. 1, and FIG. 4 is a schematic sectional view C-C shown in FIG. 1, wherein a vacuum suction port is provided at the rear side of the mold and connected to a vacuum pump through the vacuum suction port.

FIG. 5 is a schematic cross-sectional view of D-D shown in FIG. 1, in which the linkage rod in the suspension loop sealing system moves up/down during production, so that a gap is reserved between the linkage rod and the mold core to ensure smooth telecontrol. However, the cavity may leak. Therefore, the sealing ring is arranged on the linkage rod to prevent air leakage.

FIG. 6 is a schematic cross-sectional view of the support member of FIG. 1, wherein the frame support member, the glass support member and the magnet positioning rod are mounted in a mold, and a gap is formed between the frame support member, the glass support member and the magnet positioning rod, thereby causing air leakage. Therefore, the sealing parts are arranged at the above parts to ensure the vacuum of the cavity

Fig. 7 shows a regulating valve installed on a mold for regulating the vacuum degree, the regulating valve communicating with an internal cavity, the vacuum degree of the cavity being determined by various factors such as the size of the product, the regulating valve being capable of regulating the vacuum degree to the best effect.

The utility model discloses a key point, guard point:

1) in the skylight glass edge-wrapping mold, a sealing area is arranged by using a sealing strip and a sealing ring, and before a forming material is injected into a cavity, the cavity is vacuumized by using a vacuum pump. Under the condition of keeping the existing forming process including an operation flow and a forming flow, the vacuum forming process can be realized only by carrying out certain and limited modification on a mould in order to realize vacuum forming.

2) In the vacuum loop of the mould, air pressure regulation is added. The vacuum state of the cavity can be adjusted according to the shape and size of the product, and the size, appearance quality and effect of the product are guaranteed.

The utility model discloses a key point, advantage and positive effect:

Claims

1. A vacuum mould for edge covering and forming of skylight glass is a mould for edge covering and foaming and forming of automobile skylight glass and comprises an upper mould core and a lower mould core, wherein the upper mould core and the lower mould core are in direct contact fit to form a cavity, and the vacuum mould is characterized in that the cavity is a vacuum sealing cavity; the outer ring and the inner ring of the cavity of the upper mold core are provided with sealing grooves, the sealing strips are arranged in the sealing grooves and are 1.3-1.5mm higher than the parting surfaces, when the upper mold core and the lower mold core are contacted, the sealing strips are compressed by the iron parting surfaces of the upper mold core and the lower mold core, and the cavity surrounded by the sealing strips is vacuumized.

2. The vacuum mold for skylight glass hemming formation of claim 1 wherein the mold is provided with an adjustment valve for adjusting the vacuum, the adjustment valve communicating with the interior cavity.