Split type ejector rod for glass mold

Abstract

The utility model discloses a kind of spliced ejector rod for glass mould, comprising: head, extension rod and lettering cylinder, the head is set in the front end of extension rod, the through hole of axial extension is set in the extension rod, the head tail end is provided with the positioning column extending into through hole, the head front end is concavely provided with the embedding slot corresponding with lettering cylinder, the lettering column is set in embedding slot, the head tail end is provided with the positioning slot of radial extension and with embedding slot tail end intercommunication, the lettering column tail portion one side is provided with the positioning block extending into positioning slot, adopt split splicing structure, assembly and disassembly maintenance are convenient, head and lettering cylinder are made of copper alloy material, when contact with glass material, high-temperature resistance effect is good, extension rod is made of cast iron material, reduce cost, head and lettering cylinder can be replaced or interchanged individually after wearing, improve the flexibility of use.

Description

Technical Field

[0001] This utility model relates to the field of glass molds, and in particular to a splicing ejector pin for glass molds. Background Technology

[0002] Ejector pins are components of glass molds, primarily used to assist in demolding. Some glass products have complex structures, or deep ribs, barbs, or other features that make demolding difficult. During mold opening, ejector pins mechanically push the glass product out of the mold cavity, ensuring smooth demolding.

[0003] The ejector pins of the glass mold fit tightly with the holes in the mold, with a small gap, to prevent leakage of the glass material. In addition, the glass material has a high temperature, so high-temperature resistant alloy materials, such as copper alloys, can be used to make the ejector pins. However, copper alloys are expensive, and in order to number the glass products, it is necessary to engrave the ejector pins, which makes the ejector pins non-interchangeable and increases maintenance costs. Therefore, improvements are needed. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a spliced ​​top rod for glass molds, which reduces the cost of use and maintenance and improves the flexibility of use.

[0005] To solve the above-mentioned technical problems, the present invention provides a splicing ejector for glass molds, comprising: an ejector head, an extension rod, and an engraved post. The ejector head is disposed at the front end of the extension rod, the extension rod has an axially extending through hole, the tail end of the ejector head has a positioning post extending into the through hole, the front end of the ejector head has an indented groove corresponding to the engraved post, the engraved post is disposed in the indented groove, the tail end of the ejector head has a radially extending positioning groove communicating with the tail end of the indented groove, and one side of the tail end of the engraved post has a positioning block extending into the positioning groove.

[0006] In a preferred embodiment of this utility model, the engraving post and the positioning block adopt an integrated structure.

[0007] In a preferred embodiment of the present invention, the front end edge of the extension rod is provided with an annular groove, and the outer edge of the top head is provided with a guide sleeve extending into the annular groove.

[0008] In a preferred embodiment of this utility model, the top head, guide sleeve and positioning post adopt an integrated structure.

[0009] In a preferred embodiment of the present invention, the guide sleeve is provided with a radially extending pin that penetrates the positioning post.

[0010] In a preferred embodiment of this utility model, the positioning post or guide sleeve is provided with a threaded hole corresponding to the pin, and the pin is provided with an external thread corresponding to the threaded hole.

[0011] In a preferred embodiment of this utility model, a positioning hole communicating with the through hole is provided on one side of the extension rod.

[0012] The beneficial effects of this utility model are as follows: The spliced ​​top rod for glass molds disclosed in this utility model adopts a split splicing structure, which is convenient for assembly, disassembly and maintenance. The top head and engraving column are made of copper alloy material, which has good high temperature resistance when in contact with glass material and can maintain the smoothness of glass products. The extension rod is made of cast iron material, which reduces costs. After the top head and engraving column are worn, they can be replaced or interchanged individually, which improves the flexibility of use and reduces maintenance costs. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a schematic diagram of a preferred embodiment of the spliced ​​ejector pin for glass molds according to this utility model; Figure 2 yes Figure 1 A sectional view along the AA direction. Detailed Implementation

[0014] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] Please see Figures 1-2 The embodiments of this utility model include: like Figure 1 and Figure 2 The glass mold shown uses a spliced ​​ejector pin, which includes: ejector head 1, extension rod 2 and engraved column 3. The ejector head 1 is located at the front end of the extension rod 2. The ejector head 1 and the extension rod 2 are both cylindrical structures and need to be concentric.

[0016] An axially extending through hole 21 is provided in the extension rod 2, and a positioning post 14 extending into the through hole 21 is provided at the tail end of the top head 1. This facilitates assembly, ensures a tight fit, and guarantees the concentricity of the top head 1 and the extension rod 2 after splicing.

[0017] like Figure 1 As shown, an embedding groove 11 corresponding to the engraving post 3 is recessed at the front end of the top head 1. The engraving post 3 is placed in the embedding groove 11 for easy replacement. The front end of the engraving post 3 can be engraved with characters, which come into contact with the glass material, ultimately forming a serial number on the glass product.

[0018] like Figure 2 As shown, in this embodiment, the extension rod 2 is provided with a positioning hole 23 communicating with the through hole 21 on one side. The extension rod 2 is installed on the driving equipment by a chuck or connecting sleeve and other tooling. The positioning hole 23 is used to position the extension rod 2 circumferentially to ensure the angle of the engraving on the front end of the engraving post 3 and avoid the problem of misalignment of the number on the glass product.

[0019] A positioning groove 12 extending radially and communicating with the tail end of the embedding groove 11 is provided at the tail end of the top head 1. A positioning block 31 extending into the positioning groove 12 is provided on one side of the tail end of the engraving post 3 to limit the axial positioning of the engraving post 3, avoiding loosening and torsion problems, ensuring high stability and convenient replacement. In this embodiment, the engraving post 3 and the positioning block 31 adopt an integrated structure, which can be made of copper alloy, providing good resistance to high-temperature oxidation.

[0020] like Figure 2 As shown, an annular groove 22 is recessed at the front edge of the extension rod 2, and a guide sleeve 13 extending to the annular groove 22 is provided at the outer edge of the top head 1. The annular groove 22 and the guide sleeve 13 cooperate to guide the top head 1 and the extension rod 2 when they are spliced ​​together, and provide an anti-bending effect.

[0021] In this embodiment, the top head 1, guide sleeve 13, and positioning post 14 adopt an integrated structure, which can be made of copper alloy, providing good resistance to high-temperature oxidation. When in contact with glass material, this helps ensure the surface quality of the glass product and avoids roughness issues. The extension rod 2 is large in size and is made of cast iron, thereby reducing costs.

[0022] To prevent the mandrel 1 from loosening after being joined with the extension rod 2, a radially extending pin 4 is provided in the guide sleeve 13, penetrating the positioning post 14, thereby improving the tensile strength of the mandrel 1 and the extension rod 2 after being joined. In this embodiment, the positioning post 14 or the guide sleeve 13 is provided with a threaded hole 15 corresponding to the pin 4, and the pin 4 is provided with an external thread corresponding to the threaded hole 15, making disassembly and assembly convenient.

[0023] In summary, the spliced ​​top rod for glass molds disclosed in this utility model has a spliced ​​structure, which facilitates assembly and disassembly and improves maintenance convenience.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A spliced ​​ejector pin for a glass mold, characterized in that, include: The device comprises a top head, an extension rod, and an engraved post. The top head is located at the front end of the extension rod, which has an axially extending through hole. The tail end of the top head has a positioning post extending into the through hole. The front end of the top head has an indented groove corresponding to the engraved post, and the engraved post is placed in the indented groove. The tail end of the top head has a radially extending positioning groove that communicates with the tail end of the indented groove. A positioning block extending into the positioning groove is located on one side of the tail end of the engraved post.

2. The spliced ​​ejector pin for glass molds according to claim 1, characterized in that, The engraving post and the positioning block adopt an integrated structure.

3. The spliced ​​ejector pin for glass molds according to claim 1, characterized in that, The extension rod has an indented annular groove at its front end edge, and the top head has a guide sleeve extending into the annular groove at its outer edge.

4. The spliced ​​ejector pin for glass molds according to claim 3, characterized in that, The top head, guide sleeve, and positioning post adopt an integrated structure.

5. The spliced ​​ejector pin for glass molds according to claim 3, characterized in that, The guide sleeve is provided with a radially extending pin that penetrates the positioning post.

6. The spliced ​​ejector pin for glass molds according to claim 5, characterized in that, The positioning pin or guide sleeve is provided with a threaded hole corresponding to the pin, and the pin is provided with an external thread corresponding to the threaded hole.

7. The spliced ​​ejector pin for glass molds according to claim 1, characterized in that, The extension rod has a positioning hole on one side that communicates with the through hole.

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