Insert positioning structure in die

A technology of insert positioning and mold, which is applied in the direction of coating, etc., can solve problems such as easy scratches and material leakage, affect product quality and performance, and product scrapping, so as to prevent material leakage, improve quality and pass rate, prevent strong sticky effect

Active Publication Date: 2014-09-10
SHANGHAI ROX ELECTRIC
5 Cites 2 Cited by

AI-Extracted Technical Summary

Problems solved by technology

The positioning structure of the insert in the mold is crucial, which not only affects the feasibility and convenience of the mold operation, but also affects the quality and performance of the product, and can even directly lead to the scra...
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Method used

As a preferred solution, in the present invention, the inner surface of the block 3 has a groove 9 along the circumferential direction of the block, and the groove 9 is provided with a pressure ring that can move axially along the block 3 7. As shown in FIG. 2, a plurality of guide pins 8 are arranged in the groove 9, holes corresponding to the guide pins 8 are opened on the pressure ring 7, and the guide pins 8 pass through the corresponding holes on the pressure ring 7. The pressure ring 7 can move relative to the guid...
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Abstract

The invention discloses an insert positioning structure in a die. The insert positioning structure comprises a bushing and a seal block, the bushing is fixedly connected with the seal block, and the seal block is fixedly connected with the body of the die; at least one positioning slot along the circumference direction of the bushing is arranged in the bushing, and a first polytetrafluoroethylene protection sleeve is arranged in the positioning slot; and a second polytetrafluoroethylene protection sleeve is arranged in the seal block. The insert positioning structure in the die realizes the convenience of the installation and positioning of the insert, and can prevent material leakage.

Application Domain

Coatings

Technology Topic

PolytetrafluoroethyleneEngineering +1

Image

  • Insert positioning structure in die
  • Insert positioning structure in die

Examples

  • Experimental program(1)

Example Embodiment

[0012] Such as figure 1 As shown, the insert positioning structure in the mold of the present invention includes a sleeve 2 and a sealing block 3. The sealing block 3 is annular, the sleeve 2 is fixedly connected to the sealing block 3, and the sealing block 3 is connected to the mold. The body 1 is fixedly connected. The sleeve 2 is provided with at least one positioning groove (not marked in the figure) along the circumferential direction of the sleeve, and a first polytetrafluoroethylene protective sleeve 4 is installed in the positioning groove. As shown in the figure, A positioning groove is provided in the sleeve 2, and a first polytetrafluoroethylene protective sleeve 4 is correspondingly provided in the positioning groove. The sealing block 3 is provided with a second polytetrafluoroethylene protective sleeve 5.
[0013] As a preferred solution, in the present invention, the inner surface of the sealing block 3 is provided with a groove 9 along the circumferential direction of the sealing block, and a pressure ring 7 which can move along the axial direction of the sealing block 3 is arranged in the groove 9 such as figure 2 As shown in the figure, a plurality of guide pins 8 are provided in the groove 9, and the pressure ring 7 is provided with holes corresponding to the guide pins 8, and the guide pins 8 pass through the corresponding holes on the pressure ring 7. The ring 7 can move relative to the guide pin 8. The second PTFE protective sleeve 5 is located between the pressing ring 7 and the mold body 1, and the sealing block 3 is provided with a tightening screw 6. When the tightening screw 6 is tightened, the pressing ring 7 can be pushed along the guide The pin 8 moves to push the second Teflon protective sleeve 5 so that the second Teflon protective sleeve 5 abuts against the end of the mold body 1, which can prevent material leakage during injection molding.
[0014] When assembling the mold, the insert 10 is inserted into the sleeve 2 along the two PTFE protective sleeves 4, 5, and then the mold is closed. During injection, the PTFE protective sleeves 4, 5 are thermally expanded and wrapped in the insert. Position the insert 10 on the part 10; after injection molding, after the plastic is thermoset, when the product is demolded, the insert 10 is smoothly released under the guidance of the two PTFE protective sleeves 4 and 5, which improves the parts Quality and pass rate.

PUM

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Description & Claims & Application Information

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