MOLD STRUCTURE FOR INJECTION END WELDING IN SEALING PROFILES

Abstract

Disclosed is an end welding mold for providing end welding in all moving or fixed glass profiles of vehicles via injection method, having at least one mold core providing geometric shaping of the paste which is transferred by a hot runner system or a cold runner system, which is changeable depending on different end welding references. It could also be applied to dynamic sealings ends (eg. door seals) on cars if they have an end moulding.

Claims

1. An end welding mold for providing end welding in all moving or fixed glass profiles of vehicles or dynamic seals like door seals via injection method by using material paste transferred by a hot runner system or a cold runner system characterized in comprising: at least one mold core which is changeable depending on different end welding references, and through which the profile is passed for geometric shaping of the paste which is transferred by the said hot runner system or the cold runner system.

2. An end welding mold according to claim 1, wherein the said end welding mold comprises a bottom plate to establish contact between the bottom portion of the said mold core and the press.

3. An end welding mold according to claim 1, wherein the said end welding mold comprises a top plate to establish contact between the upper portion of the said mold core and the press and the hot runner system or the cold runner system.

4. An end welding mold according to claim 1, wherein the said end welding mold comprises pins to establish contact between the said mold core and the bottom plate and top plate.

5. An end welding mold according to claim 1, wherein the said mold core comprises an interconnected top block and a bottom block.

6. An end welding mold according to claim 5, wherein the said mold core comprises a profile channel whereby the profile defined between the said top block and the bottom block passes through the said profile channel.

7. An end welding mold according to claim 2, wherein the said end welding mold comprises pins to establish contact between the said mold core and the bottom plate and top plate.

8. An end welding mold according to claim 3, wherein the said end welding mold comprises pins to establish contact between the said mold core and the bottom plate and top plate.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0024] FIG. 1. Is a general view of the end welding mold of the present invention together with the press.

[0025] FIG. 2. Is a detailed view of end welding mold of the present invention.

[0026] FIG. 3. Is a general view of cold runner system.

[0027] The drawings are not necessarily scaled and details not essential for understanding the invention may be omitted. Furthermore, components that are considerably identical or with considerably identical functions are designated using the same numerals as shown below.

REFERENCE NUMERALS

[0028] 10 End Welding Mold [0029] 11 Bottom Plate [0030] 12 Top Plate [0031] 13 Pin [0032] 14 Mold Core [0033] 141 Top Block [0034] 142 Bottom Block [0035] 143 Profile Channel [0036] 20 Hot Runner System [0037] 30 Cold Runner System [0038] 40 Press [0039] 50 Profile

DETAILED DESCRIPTION OF THE INVENTION

[0040] The detailed description of the profile (50) end welding mold (10) of the present invention is intended for purposes of illustration of the preferred embodiments of the invention only and is not intended to limit the scope of the disclosure.

[0041] The end welding mold (10) of the present invention is intended to be used for shaping the profile (50) end welding installed in all vehicle moving and fixed windows by way of the injection method. With reference to FIG. 1, the end welding mold (10) which is in contact with a press (40) is used for shaping end welding. During the end welding production process, the hot runner system (20) shown in FIG. 2 or the cold runner system (30) shown in FIG. 3 is used to deliver a certain amount of material paste to the end welding mold (10). In cases where TPE and TPV pastes are used, the said hot runner system (20) comes into contact with the end welding mold (10), while the same is true for the cold runner system (30) in cases of EPDM application.

[0042] The end welding mold (10) shown in detailed view in FIG. 2 comprises a bottom plate (11), a top plate (12) placed sufficiently parallel to the said bottom plate (11), preferably two mold cores (14) in contact between the said bottom plate (11) and the top plate (12), and pins (13) to adapt the said mold cores (14) to the bottom plate (11) and top plate (12) and to allow for easy assembly/disassembly and also centering and referencing operations. Preferably ball pins (13) are used. The pins (13) also serve as a poka-yoke mechanism in ensuring the mold cores (14) are placed in the correct slots. The bottom plate (11) is where the mold cores (14) establish contact, and it also connects the mold (10) to the press (40). The top plate (12) is where the mold cores (14) establish contact with the hot runner system (20) or the cold runner system (30), and it also connects the mold (10) to the press (40).

[0043] Mold cores (14) enable geometric shaping of the injection area which produces the end welding in the profile (50). Mold cores (14) comprise a top block (141) and a bottom block (142) placed on top of one another. There is a profile channel (143) defined between the said top block (141) and the bottom block (142). The profile (50) passes through the said profile channel (143) for end welding injection operation. The number of mold cores (14) can be changed based on the needed injection welding.

[0044] As a component of the end welding mold (10), mold cores (14) are produced in different shapes and sizes according to the geometry of the injection welding. On the other hand, the bottom plate (11) and the top plate (12) are always produced in a uniform manner with standard sizes suitable for standard assembly points of the mold cores (14). Accordingly, the hot runner system (20) and the cold runner system (30) can also be produced with a standardized size and design.

[0045] The mold (10) of the present invention eliminates the need to produce separate bottom plates (11), top plates (12), mold operation mechanism system, hot runner systems (20) or cold runner systems (30) for each end welding reference. The end welding mold (10) can be adjusted for all reference values thanks to production of a mold core (14) compatible with the standard type of bottom plate (11) and top plate (12) and a simple installation process. This makes it possible to produce molds (10) at a cost rate of 20% for each reference value compared to previous applications, thereby providing savings in manufacturing costs. Another benefit of the present invention is that it eliminates the need for labor with no added value during the reference changeover in end welding molds (10). Instead of removing the mold and inserting a new mold as traditionally implemented in end welding molds, everything remains intact except for mold cores (14), which saves time in installation and adjustments. Accordingly, this also helps with reduction in mold design and production times. The end welding mold (10) of the present invention reduces the risk of occupational accidents and offers ergonomic benefits. Furthermore, the present invention also eliminates the need to keep separate spare parts for different molds and their hot and cold runner systems (20, 30), thereby reducing spare parts inventory costs. The present invention more particularly makes it possible to reduce import of hot runner systems (20) and cold runner systems (30). Such optimization of the manufacturing parameters further allows for production with less energy consumption, less heat loss and minimum material use for the profile (50).