CN212288416U

CN212288416U - Forming tool and device for vehicle window assembly and vehicle window assembly

Info

Publication number: CN212288416U
Application number: CN202020196972.3U
Authority: CN
Inventors: 陈立辉; 徐小兵; 高新桥
Original assignee: Saint Gobain Glass France SAS
Current assignee: Saint Gobain Glass France SAS; Compagnie de Saint Gobain SA
Priority date: 2020-02-21
Filing date: 2020-02-21
Publication date: 2021-01-05
Anticipated expiration: 2030-02-21

Abstract

The utility model provides a forming tool, forming device and door window assembly for door window assembly. The vehicle window assembly comprises a glass body and an edge covering for covering at least one side edge area of the glass body, the forming tool is detachably matched with a die for forming the vehicle window assembly and is provided with a covering surface for covering the peripheral edge of the glass body, so that the covered peripheral edge of the glass body is not covered by the edge covering after injection molding. Adopt the utility model discloses a forming tool or forming device, unique structural design provides the feasibility of the door window assembly at the edge of the visible glass of one shot forming in the mould, and structural design is simple, can reduce the quantity of subassembly, simplifies process flow, practices thrift manufacturing cost to satisfy the design pluralism of door window assembly.

Description

Forming tool and device for vehicle window assembly and vehicle window assembly

Technical Field

The utility model relates to an automobile parts field. And more particularly, to a molding tool for a vehicle window assembly, a molding apparatus having the same, and a vehicle window assembly.

Background

With the rapid development of the automobile industry, the shape of the automobile is more attractive and fashionable. In order to reduce weight and provide a good appearance of the window to door fit, many users require the glass of the window assembly to have a visible edge, such as the front edge 11 of the rear window 10 in the rear window assembly shown in figure 1. Currently, the manner in which this effect is achieved can be broadly divided into two categories, namely tape pre-assembly or plastic insert overmolding.

For the taping method, as shown in fig. 2, the lip 21 of the hem 20 is generally adhered to one surface 12 of the glass 10 with a tape 30. This approach has several limitations, such as high tape cost, manual positioning of the tape, increased cycle time and capital (hot box and assembly tool) and product cost, and unsatisfactory product appearance, and the adhesion of the lip 21 of the hem 20 to the surface of the glass 10 can cause a splice line to appear at the top and bottom ends and surfaces of the product, which is unacceptable to the consumer. Further, the adhesion with an adhesive tape also has a sealing problem of waterproof property or the like, and there is a risk that the lip 21 of the hem 20 is easily broken, resulting in a reduction in yield. Therefore, the preferable mode adopted in the industry is to integrally injection mold the edge covering and the glass, so that the edge of the glass can be exposed and the appearance can be ensured to have no seam.

However, in the current technology, the integral injection molding is usually realized by using a plastic insert secondary molding method, specifically, firstly, an insert around the periphery of the glass needs to be injected or the insert is put into a secondary molding mold, and secondly, a bound edge is formed on the insert in the mold and the glass by injection molding. The problem with this approach is that: the cost of the die is high, and fixed assets of machine equipment are increased; additional large inserts are often required to match the window assembly, and stack-up tolerances are difficult to control; the additional process of putting the insert into the die is added, and the production period is prolonged. Thus, this approach is not conducive to general applicability.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a problem that exists among the above-mentioned prior art is just solved to the purpose, provides a forming tool for door window assembly, and this forming tool can make door window assembly one shot forming in the mould to obtain required outward appearance aesthetic feeling with the flow of low cost and simplification.

To this end, according to one aspect of the present invention, there is provided a forming tool for a vehicle window assembly, the vehicle window assembly comprising a glass body and a covering edge covering at least one side edge region of the glass body, wherein the forming tool is detachably fitted with a mold for forming the vehicle window assembly and is provided with a covering surface covering a peripheral edge of the glass body, so that the covered peripheral edge of the glass body is not covered by the covering edge after injection molding.

In accordance with the above-described concepts, the present invention may further include any one or more of the following alternatives.

In certain alternatives, the forming tool is provided with a locating portion for locating in the mould and a support portion for locating and supporting the glass body, the support portion abutting at least one surface of the glass body.

In certain alternatives, the shaping tool extends along at least one peripheral edge of the glass body.

According to another aspect of the present invention, there is provided a molding device for a vehicle window assembly, the molding device includes a mold having an upper mold and a lower mold, the upper mold and the lower mold defining a cavity for molding the vehicle window assembly, wherein the molding device further includes the above-mentioned molding tool for the vehicle window assembly, the molding tool being disposed in the upper mold and/or the lower mold of the mold.

In some alternatives, the forming tool is provided with a locating projection for locating in the mould, and the upper and/or lower mould is provided with a locating slot for cooperation with the locating projection.

According to a further aspect of the present invention, there is provided a vehicle window assembly comprising a glass body and a hem covering at least one side edge region of the glass body, wherein the vehicle window assembly is manufactured by the above-mentioned forming tool for a vehicle window assembly or the above-mentioned forming device for a vehicle window assembly, wherein the glass body comprises a peripheral edge which is not covered by a hem material.

The utility model discloses a forming tool for door window assembly can cooperate with the mould detachably of shaping door window assembly for supply the door window assembly once-through molding in the mould, improve production cycle time, practice thrift the cost; in particular, the glass body of the formed vehicle window assembly has a visible peripheral edge which is not covered by the edge, the product appearance is attractive, the geometric dimension of the assembly with the vehicle component is ensured, more feasibility is provided for the structural design of the product, the production efficiency is high, the control is easy, and the glass body is widely suitable for various occasions.

Drawings

Other features and advantages of the present invention will be better understood from the following detailed description of alternative embodiments, taken in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts, and in which:

FIG. 1 is a schematic view of a rear window assembly in which the glass has a visible front edge;

FIG. 2 is a schematic view of a prior art window assembly employing tape to adhere glass to a hem;

FIG. 3 is a schematic cross-sectional view of a molding apparatus according to an embodiment of the present invention, showing a molded vehicle window assembly;

FIG. 4 is a schematic view of the window assembly of FIG. 3 being released from a mold;

FIG. 5 is a schematic view of the window assembly of FIG. 4 after molding, separated from the molding tool.

Detailed Description

The practice and use of the embodiments are discussed in detail below. It should be understood, however, that the specific embodiments discussed are merely illustrative of specific ways to make and use the invention, and do not limit the scope of the invention. The description herein of the structural positions of the respective components, such as the directions of upper, lower, top, bottom, etc., is not absolute, but relative. When the respective components are arranged as shown in the drawings, these direction expressions are appropriate, but when the positions of the respective components in the drawings are changed, these direction expressions are changed accordingly.

Herein, "front side" refers to a side facing a vehicle forward direction with respect to a vehicle body of the vehicle.

According to the utility model discloses a design provides one kind with mould complex forming tool, and this forming tool's structure is similar with the marginal structure of door window assembly product, uses it can cover glass's edge during forming process in forming device to through changing the one shot forming that the mould structure realized the door window assembly, and make glass's edge (for example the front side edge) do not have the cladding material of borduring in the door window assembly, increase the automobile body pleasing to the eye.

It should be understood that the edge cover may also be referred to as "sealant material" and refers to a material, usually a thermoplastic polymer, injected into the mold in a molten state during the injection molding process of the vehicle window assembly, which acts as a seal and reduces wind noise to ensure good appearance. The window assembly generally comprises a glass body and a cover edge covering at least one side edge region of the glass body, and the glass body may be triangular, quadrangular or polygonal in shape depending on different production requirements, and accordingly, the cover edge may cover one, two or more side edge regions of the glass body. Further, the rear window is illustrated and described herein as an example, however, it is understood that the vehicle window includes, but is not limited to, a front windshield, a rear windshield, a front door glazing, a rear door glazing, a quarter light, a skylight, or the like. Also, the front edge of the glass body is shown and described herein, but does not preclude the application of a forming tool to the remaining edges of the glass body to obtain a different visible edge effect for the vehicle window assembly.

According to the present invention, the forming tool can be configured to detachably cooperate with a mold for forming the vehicle window assembly, as shown in fig. 3 to 5, in one embodiment, a forming tool 50 is provided in the mold, and the forming tool 50 is configured as an ejector block capable of being demolded together with the vehicle window assembly after injection molding, for example, so that the forming tool 50 can continue to be used as a forming tool for a subsequent production cycle after being separated from the vehicle window assembly, thereby effectively saving cost, and being capable of being manufactured to have a smaller size, and improving market competitiveness of the forming apparatus. In an alternative embodiment, the forming tool 50 may be arranged in the upper and/or lower mold of the mold, for example in the lower mold 40 as exemplarily shown in the figures. As can be seen in fig. 3, the forming tool 50 is provided with an abutment surface 51 for abutment with the lower mould 40 and a cover surface 52 which can cover the peripheral edge of the glass body 10 during the injection moulding process, which cover surface 52 advantageously extends at least along one peripheral edge of the glass body 10, preferably along the front side edge 11.

In some embodiments, the molding tool 50 is provided with a positioning portion for positioning in the mold, such as the positioning protrusion 53 shown in the drawings, and accordingly, the lower mold 40 may be provided with a positioning groove 42 in cooperation with the positioning protrusion 53. In some embodiments, the forming tool 50 may also be provided with a support 54 for positioning and supporting the glass body 10, the support 54 abutting at least one surface of the glass body 10, such as the lower surface 12 shown facing the lower mold 40. The support 54 can additionally provide a barrier between the edging 20 and the glass body 10, preventing the edging material from overflowing to the front edge 11 of the glass body 10 covered by the covering surface 52 of the forming tool 50 during the forming process. Even if the edge corners of the forming tool 50 have defects such as flash or burrs in the injection molding process, the edge corners can be manually trimmed after forming, and the appearance quality of the vehicle window assembly cannot be influenced.

The following outlines a process for manufacturing a vehicle window assembly by using the molding apparatus of the present invention with reference to fig. 3 to 5.

Referring first to fig. 3, the forming tool 50 is placed into the lower mold 40 together with the glass body 10, the positioning protrusions 53 of the forming tool 50 are inserted into the positioning grooves 42 of the lower mold 40 for positioning, the support portion 54 of the forming tool 50 provides positioning and support for the front edge 11 of the glass body 10, and the front edge 11 is covered by the covering surface 52. After an upper mold (not shown) and a lower mold 40 are closed, a molten edge-covering material is injected into the cavity 41 to form the edge-covering 20, and a molded window assembly is obtained.

Thereafter, as shown in FIG. 4, the window assembly with the molding tool 50 is lifted and removed in the direction of arrow A by ejector pins (not shown) in the mold, and then the window assembly can be disengaged from the molding tool 50 in the direction of arrow B as shown in FIG. 5, or the molding tool 50 can be disengaged from the window assembly in the opposite direction of arrow C, to obtain a desirable window assembly with a glass body having a visible edge.

Adopt the utility model discloses a forming tool or forming device, unique structural design provides the feasibility of the door window assembly at the edge of the visible glass of one shot forming in the mould, and structural design is simple, can reduce the quantity of subassembly, simplifies process flow, practices thrift manufacturing cost to satisfy the design pluralism of door window assembly. The dimensional tolerance of the matching of the forming tool and the die can meet the requirements of product technology and use, the positioning precision is high, and the method has a wide application prospect.

It should be understood herein that the embodiments shown in the figures merely show alternative shapes, sizes and arrangements of various optional components of a forming tool, a forming device and a window assembly for a window assembly according to the present invention, however, they are merely illustrative and not limiting, and other shapes, sizes and arrangements may be adopted without departing from the spirit and scope of the present invention.

The technical content and technical features of the present invention have been disclosed above, but it should be understood that various changes and modifications can be made to the concept disclosed above by those skilled in the art under the inventive concept of the present invention, and all fall within the scope of the present invention. The above description of embodiments is intended to be illustrative, and not restrictive, and the scope of the invention is defined by the appended claims.

Claims

1. A forming tool for a vehicle window assembly, the vehicle window assembly comprising a glass body and a surround covering at least a side edge region of the glass body, wherein the forming tool is releasably engageable with a mould for forming the vehicle window assembly and is provided with a cover surface for covering a peripheral edge of the glass body, such that after injection moulding the covered peripheral edge of the glass body is not covered by the surround.

2. The molding tool according to claim 1, wherein the molding tool is provided with a positioning portion for positioning in the mold, and a support portion for positioning and supporting the glass body, the support portion abutting at least one surface of the glass body.

3. The shaping tool according to claim 1 or 2, wherein the shaping tool extends along at least one peripheral edge of the glass body.

4. A moulding apparatus for a vehicle window assembly, the moulding apparatus comprising a mould having an upper mould and a lower mould which define a cavity in which the vehicle window assembly is to be moulded, characterised in that the moulding apparatus further comprises a moulding tool for a vehicle window assembly according to any of claims 1 to 3, the moulding tool being disposed in the upper and/or lower mould of the mould.

5. The molding apparatus as claimed in claim 4, wherein said molding tool is provided with a positioning projection for positioning in said mold, and said upper mold and/or lower mold is provided with a positioning groove to be engaged with said positioning projection.

6. A vehicle window assembly comprising a glass body and a edging covering at least one side edge region of the glass body, wherein the vehicle window assembly is produced by the forming tool for a vehicle window assembly according to any one of claims 1 to 3 or the forming device for a vehicle window assembly according to claim 4 or 5, wherein the glass body comprises a peripheral edge which is not covered with the edging material.