Mould for improving smoothness of bottom of glass product

Abstract

The utility model discloses a mold for improving the smoothness of the bottom of a glass product. The mold comprises a bottom mold and a half mold, the bottom die and the half dies form a forming cavity; an alloy spray welding layer is arranged at the upper end of the bottom die and located in the forming cavity. According to the utility model, the alloy spray welding is arranged at the upper end of the bottom die to improve the finish degree of the die, and the bottom die is emptied to reduce the heat transfer of the bottom die so as to improve the temperature of the bottom die, thereby further improving the finish degree of the bottom of the glass bottle during demolding.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds, and in particular relates to a mold for improving the smoothness of the bottom of a glass product. Background Art

[0002] The glass molds used in the modern glass production and processing industry are usually cast from cast iron and are one-piece structures, which are completed after mechanical processing. Because the wall of this type of mold is thicker and the high temperature corrosion resistance is poor, the mold scrapping rate in actual production is very high, resulting in an increase in the production cost of glass bottles. For glass molds with special requirements, especially those that are used on foreign advanced equipment for long-term high-speed operation, silicon-copper alloy materials are also required. However, the price of silicon-copper alloy materials is expensive, which makes the mold cost higher.

[0003] The Chinese patent document with publication number CN206562385U discloses a spray welding mold for glass bottles or vessels, wherein a cavity is arranged in the mold, the mold comprises a Haver positioning pin, a bottom mold, and a pair of half molds mortise and tenoned to each other, and a boss is arranged on the top of the bottom mold, and a groove matching the boss is arranged on the bottom of the half mold, and the cooperation between the bottom mold and the half mold is achieved by the cooperation between the boss and the groove; a Haver positioning hole is also arranged on the half mold, a half mold positioning mechanism is also arranged on the top of the bottom mold, and a bottom mold positioning hole matching the half mold positioning mechanism is arranged on the bottom of the half mold; the cavity is a bottle cavity or a vessel cavity, and a spray coating is also arranged on the inner walls of the bottom mold, the half mold and the cavity corresponding to each other.

[0004] In the above-mentioned patent scheme, the entire molding cavity is spray-welded to improve the smoothness of the entire glass bottle. However, in the actual processing and production process, only the bottom of the glass bottle will have poor smoothness. The spray welding of the entire molding cavity increases the mold cost, and it is also easy to have uneven spray welding or missing spraying in some parts, resulting in differences in the appearance of the bottle. Utility Model Content

[0005] In order to overcome the technical problem in the prior art that when glass products are formed, the temperature of the bottom mold is low, resulting in poor bottom finish of the product when it is demolded, an object of the utility model is to provide a mold for improving the bottom finish of the glass product, by spraying alloy welding on the upper end of the bottom mold and reducing the heat transfer of the bottom mold during molding, thereby improving the bottom finish of the glass product.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a mold for improving the smoothness of the bottom of a glass product, including a bottom mold and a half mold; the bottom mold and the half mold form a molding cavity; the upper end of the bottom mold is located in the molding cavity and an alloy spray welding layer is provided.

[0007] Optionally, the alloy spray-welded layer is a welding layer formed by spray-welding nickel-based self-fluxing alloy powder on the upper end of the bottom mold using an oxy-acetylene spray-welding process.

[0008] Preferably, a heat-insulating structure is provided in the bottom mold.

[0009] Furthermore, the heat-insulating structure is a cavity formed in the bottom mold.

[0010] Preferably, the lower end of the cavity is open.

[0011] Compared with the prior art, the beneficial effect of the utility model is that the utility model improves the smoothness of the mold itself by arranging an alloy spray-welded layer on the upper end of the bottom mold, and at the same time hollows out the bottom mold, reduces the heat transfer of the bottom mold and thus increases the temperature of the bottom mold, further improving the smoothness of the bottom of the glass bottle when it is demolded. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the use state of the utility model;

[0013] Figure 2 For the utility model Figure 1 Enlarged schematic diagram of part A in the middle.

[0014] In the figure: 1, bottom mold; 11, cavity; 12, alloy spray-welded layer; 2, half mold; 3, pressurizing part; 4, molding cavity. DETAILED DESCRIPTION

[0015] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0016] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present invention.

[0017] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0018] In the present invention, unless otherwise specified and limited, the terms "setting", "installation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] See also Figure 1-2 A mold for improving the smoothness of the bottom of a glass product, comprising a bottom mold 1; two half molds 2, the half molds 2 being arranged on the upper part of the bottom mold 1; a pressurizing part 3, the pressurizing part being located at the upper end of the half molds 2; the two half molds 2 and the bottom mold 1 forming a molding cavity 4; the pressurizing part 3 being arranged at the upper end of the molding cavity 4, and being used for processing the glass initial mold in the molding cavity 4 into a glass bottle.

[0020] The upper end of the bottom mold 1 is located in the molding cavity 4 and is provided with an alloy spray-welding layer 12; the alloy spray-welding layer 12 can be formed by spray-welding nickel-based self-fluxing alloy powder on the upper end of the bottom mold 1 using an oxy-acetylene spray-welding process; the surface finish of the mold itself is improved. A cavity 11 is formed inside the bottom mold; the cavity 11 reduces the heat transfer of the bottom mold 1, that is, reduces the heat transfer efficiency of the bottom mold 1, thereby indirectly increasing the temperature of the bottom mold 1, thereby ensuring the bottom finish of the glass bottle when it is ejected from the mold.

[0021] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A mold for improving the smoothness of the bottom of a glass product, comprising a bottom mold and a half mold; the bottom mold and the half mold form a molding cavity; Features: An alloy spray-welding layer is arranged at the upper end of the bottom mold in the molding cavity; the alloy spray-welding layer is a welding layer formed by spray-welding nickel-based self-fluxing alloy powder at the upper end of the bottom mold using an oxy-acetylene spray-welding process.

2. The mold according to claim 1, Features: A heat preservation structure is arranged in the bottom mold.

3. The mold according to claim 2, Features: The heat-insulating structure is a cavity formed in the bottom mold.

4. The mold according to claim 3, Features: The lower end of the cavity is an opening.

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