CN217514126U - Novel sleeve positioning column for double-block type sleeper mold - Google Patents
Novel sleeve positioning column for double-block type sleeper mold Download PDFInfo
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- CN217514126U CN217514126U CN202020573387.0U CN202020573387U CN217514126U CN 217514126 U CN217514126 U CN 217514126U CN 202020573387 U CN202020573387 U CN 202020573387U CN 217514126 U CN217514126 U CN 217514126U
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- sleeve
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- expansion
- positioning column
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Abstract
The application discloses a novel sleeve positioning column of a double-block type sleeper mold, which comprises a fixing column and is characterized in that the bottom of the fixing column is fixed with the sleeper mold, and a metal expansion block is arranged on the upper part of the fixing column; the expansion block is in a circular shape, and a plurality of expansion sheets slightly tilting outwards are arranged on the expansion block; when the sleeve is installed, the bottom of the sleeve is inserted into the positioning column, and the expansion piece abuts against the inner wall of the sleeve. The positioning column has long service life; the installation is simple and convenient, and the trouble of frequently dismantling has been avoided to once installation long-term use, has improved work efficiency greatly.
Description
Technical Field
The application relates to the technical field of sleeper production, in particular to a novel sleeve positioning column for a double-block type sleeper mold.
Background
The embedded sleeve of the sleeper is required to be vertical and tightly attached to the bottom of a mould during production, and cannot be loosened in later material distribution, vibration and other process links so as to prevent cement from entering the inside of the sleeve to cause defective products. And in the final demoulding link, the sleeve is required to be smoothly taken off from the positioning shaft. The fixation of the sleeve cannot be too loose nor too tight. The mounting and positioning modes of the embedded sleeve in the existing sleeper production mainly include two modes:
one is a plastic positioning shaft, and the outer side of the positioning shaft is provided with a thread matched with the sleeve. The positioning shaft is fixed on a preformed hole at the bottom of the steel die in advance. When the sleeper is produced, the sleeve is screwed on the positioning shaft. When the sleeper is demoulded, the purpose of separating the sleeve from the positioning shaft is achieved by utilizing the drawing force generated by the gravity of the sleeper and the elastic shrinkage of the plastic material of the positioning shaft. The positioning shaft has the advantages that the sleeve is simple and convenient to mount during production, and the positioning shaft is short in service life and easy to damage due to the fact that the plastic material of the positioning shaft needs to be replaced frequently.
The other type is a metal bolt type positioning shaft, namely when the sleeve is installed, the positioning shaft is temporarily installed on a reserved hole at the bottom of the mold, and then the sleeve is screwed on the positioning shaft. When demoulding, the positioning shaft is unscrewed from the sleeve and the mould to relieve the resistance of demoulding the sleeper. The positioning shaft has the advantages of being made of metal and long in service life; the defects are that the positioning shaft needs to be installed and detached in each mould production, the steps are multiple, the operation is complex, and the production efficiency is greatly reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel sleeve pipe reference column of double block formula sleeper mould.
The purpose of the utility model is realized through the following ways:
a double-block type sleeper mould novel sleeve positioning column comprises a fixing column 1, wherein the bottom of the fixing column is fixed with a sleeper mould, and a metal expansion block 2 is arranged at the upper part of the fixing column; the expansion block 2 is in a circular ring shape, and a plurality of expansion sheets 201 slightly tilted outwards are arranged on the expansion block 2; when the sleeve is installed, the bottom of the sleeve is inserted into the positioning column, and the expansion piece 201 abuts against the inner wall of the sleeve.
Further, the number of the expansion sheets is 4.
Further, the bottom of the fixing column 1 is provided with a thread 101 for fixing with a mold, and a positioning boss 102 is arranged above the thread 101.
Furthermore, the middle of the fixing column is provided with a convex block 103, the upper part of the expansion block is placed on the convex block 103, a nut 3 is installed on the top 104 of the fixing column 1, and the nut 3 is matched with the convex block 103 to clamp and fix the expansion block 2.
Compared with the prior art, the utility model has the advantages that:
the service life is long due to the metal material; the installation is simple and convenient, and the trouble of frequently dismantling has been avoided to once installation long-term use, has improved work efficiency greatly.
Drawings
FIG. 1 shows the appearance of a locating post;
FIG. 2 is a cross-sectional view of the positioning post;
fig. 3 is a top view of the positioning post.
Detailed Description
The present invention will be described in more detail with reference to the following examples.
As shown in fig. 1 to 3, the fixing post 1 is fixed to a prepared hole of a mold. During production, the sleeve is arranged on the fixing column 1 through pressure and tightly attached to the bottom of the mold, and the expansion block 2 on the fixing column can tightly fix the sleeve on the mold by elasticity. When demoulding, the sleeve and the positioning column are smoothly separated by using the drawing force generated by the self weight of the sleeper and the elastic contraction of the expansion sheet 201.
The above description of the examples is only intended to help understand the core ideas of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (4)
1. A novel sleeve positioning column of a double-block type sleeper mold comprises a fixing column, and is characterized in that the bottom of the fixing column is fixed with the sleeper mold, and a metal expansion block is mounted at the upper part of the fixing column; the expansion block is in a circular shape, and a plurality of expansion sheets slightly tilting outwards are arranged on the expansion block; when the sleeve is installed, the bottom of the sleeve is inserted into the positioning column, and the expansion piece abuts against the inner wall of the sleeve.
2. The novel sleeve positioning column for the double-block sleeper mold as claimed in claim 1, wherein the number of the expansion sheets is 4.
3. The novel sleeve positioning column for the double-block sleeper mold as claimed in claim 1, wherein a thread for fixing with the mold is arranged at the bottom of the fixing column, and a positioning boss is arranged above the thread.
4. The positioning column for the novel sleeve of the double-block type sleeper mold as claimed in claim 1, wherein a convex block is arranged in the middle of the fixing column, the upper part of the expansion block is placed on the convex block, a nut is installed on the top of the fixing column, and the nut is matched with the convex block to clamp and fix the expansion block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020573387.0U CN217514126U (en) | 2020-04-16 | 2020-04-16 | Novel sleeve positioning column for double-block type sleeper mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020573387.0U CN217514126U (en) | 2020-04-16 | 2020-04-16 | Novel sleeve positioning column for double-block type sleeper mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217514126U true CN217514126U (en) | 2022-09-30 |
Family
ID=83368582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020573387.0U Active CN217514126U (en) | 2020-04-16 | 2020-04-16 | Novel sleeve positioning column for double-block type sleeper mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217514126U (en) |
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2020
- 2020-04-16 CN CN202020573387.0U patent/CN217514126U/en active Active
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