A forming die for the blow molding of a glass liner for a thermos bottle
By introducing guide blocks and ejector blocks into the blow molding die for the glass liner of a thermos bottle, the problems of low demolding efficiency and inaccurate mold alignment are solved, achieving efficient demolding and mold protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHUNFAN HOUSEHOLD PROD NANTONG CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-06-12
AI Technical Summary
Existing molding dies for blowing glass liners for thermos bottles are inefficient during demolding and prone to misalignment, wear, or damage during high-speed mold closing. The lack of a guiding structure also leads to inaccurate alignment.
A molding die structure including a cooling chamber, guide blocks, ejector blocks, and cylinders was designed. The guide blocks ensure mold alignment, and the ejector blocks and cylinders work together to achieve smooth demolding of glass bottles.
It improves demolding efficiency, ensures accurate mold alignment during high-speed mold closing, avoids mold misalignment and damage, and improves production efficiency.
Smart Images
Figure CN224350562U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold technology, specifically a molding mold for blowing glass liner for thermos bottles. Background Technology
[0002] Blowing molds are divided into manual blowing and machine blowing. Except for a small number of arts and crafts items and a few large products, manual blowing is rarely used anymore; instead, various automated machine blowing methods are dominant. The inner liner of a thermos flask is mainly made of glass, achieving its insulation effect through a double-layer structure and vacuum insulation technology, and it is asbestos-free. The insulation principle of the glass inner liner mainly relies on its double-layer structure and vacuum insulation technology. The double-layer structure creates an air layer between the inner and outer glass layers, effectively reducing heat conduction and loss, while the vacuum insulation technology further eliminates the influence of air on heat conduction, thus achieving excellent insulation. In the preform preparation stage of a thermos flask, uniform, impurity-free high-temperature molten glass is taken and blown separately in a metal mold into inner and outer glass preforms with a wall thickness of 1-2 mm.
[0003] Existing molding dies for blowing glass liners of thermos bottles have several drawbacks. First, the molded glass bottle is difficult to eject from the mold, resulting in low demolding efficiency. Second, during high-speed mold closing, the lack of a guiding structure makes accurate alignment impossible, often requiring multiple adjustments. This process can easily lead to mold misalignment, wear, or even damage. Therefore, there is an urgent need for a molding die for blowing glass liners of thermos bottles to solve these technical problems. Utility Model Content
[0004] The purpose of this utility model is to provide a molding die for blowing glass liners of thermos bottles, in order to solve the problems mentioned in the background art. In use, the molded glass bottle is not easy to remove from the mold, resulting in low demolding efficiency. Secondly, during the high-speed mold closing process, the lack of a guiding structure makes it impossible to align accurately, often requiring multiple adjustments. In this process, the mold is prone to misalignment, wear, or even damage.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A molding die for blowing glass liners for thermos bottles includes a cooling chamber. Bases are connected to both sides of the bottom of the cooling chamber. An opening is formed at the top of the cooling chamber. A worktable is provided at the bottom of the interior of the cooling chamber. Two guide blocks are symmetrically arranged vertically on one side of the worktable inside the cooling chamber. A moving mold is positioned between the two guide blocks. A stationary mold is positioned to the right of the moving mold. A telescopic cylinder is positioned on one side of the moving mold. The bottom of the telescopic cylinder is connected to the left inner wall of the cooling chamber via a support base. An ejector cylinder is positioned on one side of the stationary mold. The bottom of the ejector cylinder is connected to the right inner wall of the cooling chamber via a load-bearing platform. An ejector block is embedded in the stationary mold. The piston rod of the ejector cylinder is connected to the ejector block. Air vents are formed on both the stationary and moving molds. Exhaust grooves are formed on the contact surfaces of the stationary and moving molds.
[0007] As a preferred embodiment of this invention, a drain outlet is provided on one side of the bottom of the cooling chamber.
[0008] As a preferred embodiment of this invention, the moving mold can move horizontally left and right between two guide blocks.
[0009] In a preferred embodiment of this invention, the ejector block is in contact with, but not connected to, the stationary mold.
[0010] As a preferred embodiment of this utility model, the number of air outlets is set to multiple.
[0011] As a preferred embodiment of this invention, the rear end faces of both guide blocks are connected to the rear end face of the cooling chamber.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] This invention utilizes the ejector block, ejector cylinder, and support platform to facilitate the smooth ejection of the molded glass bottle from the mold, thereby improving demolding efficiency. Furthermore, by setting two guide blocks, it ensures accurate alignment of the mold during high-speed mold closing, preventing mold misalignment, wear, or even damage. Attached Figure Description
[0014] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a cross-sectional view of the overall structure of this utility model;
[0017] Figure 3 This is a three-dimensional structural diagram of the static mold of this utility model.
[0018] In the diagram: 1. Cooling chamber; 2. Base; 3. Workbench; 4. Guide block; 5. Moving mold; 6. Stationary mold; 7. Telescopic cylinder; 8. Support base; 9. Load-bearing platform; 10. Ejection cylinder; 11. Opening; 12. Ejection block; 13. Air outlet; 14. Exhaust groove; 15. Drain outlet. Detailed Implementation
[0019] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. In the embodiments of the present utility model, the different types of cross-sectional lines are not labeled according to national standards, nor do they specify material requirements for the components; they are used to distinguish the cross-sectional views of the components in the drawings.
[0020] Please see Figure 1-3 A molding die for blowing glass liners for thermos bottles includes a cooling chamber 1. Bases 2 are connected to both sides of the bottom of the cooling chamber 1. An opening 11 is provided at the top of the cooling chamber 1. A workbench 3 is provided at the bottom of the interior of the cooling chamber 1. Two guide blocks 4 are symmetrically arranged vertically on one side of the workbench 3 inside the cooling chamber 1. A moving mold 5 is arranged between the two guide blocks 4. A stationary mold 6 is arranged to the right of the moving mold 5. A telescopic cylinder 7 is arranged on one side of the moving mold 5. The bottom of the telescopic cylinder 7 is connected to the left inner wall of the cooling chamber 1 via a support base 8. An ejector cylinder 10 is arranged on one side of the stationary mold 6. The bottom of the ejector cylinder 10 is connected to the right inner wall of the cooling chamber 1 via a load-bearing platform 9. An ejector block 12 is embedded in the stationary mold 6. The piston rod of the ejector cylinder 10 is connected to the ejector block 12. Air vents 13 are provided on both the stationary mold 6 and the moving mold 5. Exhaust grooves 14 are provided on the contact surfaces of the stationary mold 6 and the moving mold 5.
[0021] A drain outlet 15 is provided on one side of the bottom of the cooling chamber 1.
[0022] Among them, the moving mold 5 can move horizontally left and right between the two guide blocks 4.
[0023] The ejector block 12 is in contact with the stationary mold 6 on all four sides, but they are not connected.
[0024] The number of air outlets 13 is set to multiple.
[0025] The rear end faces of both guide blocks 4 are connected to the rear end face of the cooling chamber 1.
[0026] The working principle and usage process of this utility model are as follows: First, during the blowing process, the telescopic cylinder 7 is activated to drive the moving mold 5 to move horizontally to the right between the two guide blocks 4, so that the moving mold 5 and the stationary mold 6 are closed, and then the blowing process is carried out. During the blowing process, the air is exhausted through the air outlet 13 and the exhaust groove 14. When cooling is required, cooling water is poured into the moving mold 5 and the stationary mold 6 through the opening 11 of the cooling chamber 1.
[0027] When it is necessary to remove the molded glass liner of the thermos bottle, the telescopic cylinder 7 is reset, causing the telescopic cylinder 7 to move the moving mold 5 to the left. Then, the ejector cylinder 10 is activated to drive the ejector block 12 to eject the molded glass liner of the thermos bottle from the stationary mold 6. This allows the molded glass bottle to be smoothly removed from the mold, improving demolding efficiency. By setting two guide blocks 4, it is ensured that the mold can be accurately aligned during high-speed mold closing, avoiding mold misalignment, wear, or even damage. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0028] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.
Claims
1. A molding die for blowing glass liners for thermos bottles, comprising a cooling chamber (1), characterized in that: The cooling chamber (1) has bases (2) connected to both sides of its bottom. The top of the cooling chamber (1) has an opening (11). A workbench (3) is provided at the bottom of the interior of the cooling chamber (1). Two guide blocks (4) are symmetrically arranged inside the cooling chamber (1) and on one side of the workbench (3). A moving mold (5) is provided between the two guide blocks (4). A stationary mold (6) is provided on the right side of the moving mold (5). A telescopic cylinder (7) is provided on one side of the moving mold (5). The bottom of the telescopic cylinder (7) is supported by a support. The support (8) is connected to the left inner wall of the cooling chamber (1). An ejector cylinder (10) is provided on one side of the stationary mold (6). The bottom of the ejector cylinder (10) is connected to the right inner wall of the cooling chamber (1) through the support platform (9). An ejector block (12) is embedded on the stationary mold (6). The piston rod of the ejector cylinder (10) is connected to the ejector block (12). An air outlet (13) is provided on both the stationary mold (6) and the moving mold (5). An exhaust groove (14) is provided on the contact surface of both the stationary mold (6) and the moving mold (5).
2. The molding die for blowing glass liner of a thermos bottle according to claim 1, characterized in that: A drain outlet (15) is provided on one side of the bottom of the cooling chamber (1).
3. The molding die for blowing glass liner for a thermos bottle according to claim 1, characterized in that: The moving mold (5) can move horizontally left and right between the two guide blocks (4).
4. The molding die for blowing glass liner for a thermos bottle according to claim 1, characterized in that: The ejector block (12) is in contact with the stationary mold (6) around its perimeter, but not connected to it.
5. The molding die for blowing glass liner for a thermos bottle according to claim 1, characterized in that: The number of air outlets (13) is set to multiple.
6. The molding die for blowing glass liner of a thermos bottle according to claim 1, characterized in that: The rear end faces of both guide blocks (4) are connected to the rear end face of the cooling chamber (1).