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CN-224224497-U - Blowing needle structure of blow molding die

CN224224497UCN 224224497 UCN224224497 UCN 224224497UCN-224224497-U

Abstract

The utility model relates to the technical field of blowing needle structures, in particular to a blowing needle structure of a blowing mould, which comprises a butt joint, wherein the butt joint is fixed with a blowing needle sleeve through a butt joint part, the butt joint part comprises a first fixing ring, the butt joint part is provided with a first fixing ring, the first fixing ring is provided with a plurality of check blocks in an array manner, inclined planes are arranged on the check blocks, a second fixing ring is fixed on the blowing needle sleeve, the upper circumference of the second fixing ring is provided with a plurality of fixing blocks in an array manner, and the fixing blocks are clamped with the check blocks. The butt joint is connected with the needle blowing sleeve, so that the butt joint is guaranteed to be the same as the needle blowing sleeve in height after being installed, the needle blowing mold is not required to be positioned again, the operation efficiency is improved, and the installation and disassembly efficiency is improved.

Inventors

  • CAI SHIBIN

Assignees

  • 嘉兴英发包装科技有限公司

Dates

Publication Date
20260512
Application Date
20250609

Claims (7)

  1. 1. The blowing needle structure of the blow molding die comprises a butt joint (2) which is connected with the die needle through threads, and is characterized in that the butt joint (2) is fixed with a blowing needle sleeve (1) through a butt joint piece (5), the butt joint piece (5) comprises a first fixing ring (502), the first fixing ring (502) is installed on the butt joint (2), a plurality of stop blocks (503) are arranged on a circumferential array of the first fixing ring (502), inclined planes (505) are arranged on the stop blocks (503), a second fixing ring (506) is fixed on the blowing needle sleeve (1), a plurality of fixing blocks (501) are arranged on the circumferential array of the second fixing ring (506), and the fixing blocks (501) are clamped with the stop blocks (503).
  2. 2. The blowing needle structure of a blow mold according to claim 1, wherein a sealing ring (7) is installed at the bottom end of the butt joint (2), and the sealing ring (7) is abutted against the blowing needle sleeve (1).
  3. 3. A blow pin structure for a blow mold according to claim 1, wherein a first nut (3) is fixed to the abutment (2), and the first nut (3) is located at the top end of the first fixing ring (502).
  4. 4. The blowing needle structure of a blow mold according to claim 1, wherein a second nut (4) is fixed on the blowing needle sleeve (1), and the second nut (4) is positioned at the bottom end of the second fixing ring (506).
  5. 5. The blowing needle structure of a blow mold according to claim 1, wherein the stopper (503) has an end portion fixed with an anti-drop block (504), and the fixed block (501) abuts against the anti-drop block (504).
  6. 6. The blowing needle structure of a blow mold according to claim 1, wherein one of the stoppers (503) is provided with a clamping groove (507), and the clamping groove (507) is rectangular.
  7. 7. The blowing needle structure of a blow mold according to claim 6, wherein one of the fixing blocks (501) is screwed with a bolt (6) engaged with the clamping groove (507), and an end portion of the bolt (6) extends into the clamping groove (507).

Description

Blowing needle structure of blow molding die Technical Field The utility model relates to a blowing needle structure, in particular to a blowing needle structure of a blowing mould, and belongs to the technical field of blowing needle structures. Background In the prior art, a blowing mould needle is a mould fitting for blow moulding hollow plastic products, the structure of the blowing mould needle generally comprises an external sleeve and a mould needle sleeved in a sleeve shaft hole and longer than the sleeve, a gap for high-pressure gas to pass through is reserved between the mould needle and the sleeve hole wall, the mould needle is provided with an upward reset device, and the bottom of the mould needle is provided with a bottom plug for closing the opening at the bottom of the sleeve. When in blow molding, the high-pressure gas presses down the mold needle and blows out from the gap between the mold needle and the wall of the sleeve, the bottom of the mold needle is contacted with high-temperature plastic melt, and a hollow plastic product can be formed under the action of the high-pressure gas. However, the blowing needle sleeve is connected with the mould needle in a threaded manner, and the number of turns of the blowing needle sleeve can not be accurately determined under the premise of ensuring the tightness, so that the heights of the blowing needle sleeve are inconsistent, the heights of the mould needle components in the blow mould also need to be readjusted after the installation of the blowing needle sleeve is completed, the operation efficiency is low, and the sliding wire is easily caused by the reciprocating disassembly of the threaded connection manner. Disclosure of utility model The utility model aims to solve the problems and provide a blowing needle structure of a blow molding die, when a blowing needle sleeve is rotated, a fixed block is driven to move upwards under the action of an inclined plane of a stop block, and when the stop block is completely clamped with the fixed block, an abutting joint is connected with the blowing needle sleeve, so that the same height of the abutting joint and the blowing needle sleeve after installation is ensured, the blowing needle die is not required to be positioned again, the operation efficiency is improved, and meanwhile, the installation and disassembly efficiency is improved. The blowing needle structure of the blow molding die comprises a butt joint which is connected with the die needle in a threaded mode, wherein the butt joint is fixed with a blowing needle sleeve through a butt joint piece, the butt joint piece comprises a first fixing ring, the first fixing ring is installed on the butt joint, a plurality of check blocks are arranged on the first fixing ring in a circumferential array mode, inclined planes are arranged on the check blocks, a second fixing ring is fixed on the blowing needle sleeve, a plurality of fixing blocks are arranged on the second fixing ring in a circumferential array mode, and the fixing blocks are clamped with the check blocks. Preferably, the sealing ring is installed to the bottom of butt joint, the sealing ring is contradicted with blowing needle sleeve, has improved the leakproofness between blowing needle sleeve and the butt joint. Preferably, the first nut is fixed on the butt joint, and the first nut is positioned at the top end of the first fixed ring, so that the butt joint can be rotated conveniently. Preferably, the second nut is fixed on the needle blowing sleeve, and is positioned at the bottom end of the second fixing ring, so that the needle blowing sleeve can be rotated conveniently. Preferably, the end part of the stop block is fixed with an anti-falling block, and the fixed block is in contact with the anti-falling block to prevent the stop block from falling off from the fixed block in the rotation process. Preferably, one of the stop blocks is provided with a clamping groove, the clamping groove is rectangular, one of the fixing blocks is connected with a bolt matched with the clamping groove in a threaded manner, the end part of the bolt extends to the inside of the clamping groove, the stop block and the fixing block are conveniently positioned, and the stability is improved. The utility model has the advantages that the first fixing ring is arranged on the butt joint, the plurality of check blocks are arranged on the first fixing ring in a circumferential array manner, the inclined surfaces are arranged on the check blocks, the second fixing ring is fixed on the needle blowing sleeve, the plurality of fixing blocks are arranged on the second fixing ring in a circumferential array manner, the fixing blocks are clamped with the check blocks, the butt joint is connected to the die needle in a threaded manner, the needle blowing sleeve corresponds to the butt joint when the needle blowing sleeve is replaced, the inclined surfaces of the check blocks are contacted with the fixing blocks, th