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CN-113172837-B - Cooling structure of mould

CN113172837BCN 113172837 BCN113172837 BCN 113172837BCN-113172837-B

Abstract

The invention relates to the technical field of dies and discloses a cooling structure of a die, which comprises a die core, wherein a first waterway and a second waterway are formed in the die core, the first waterway and the second waterway are mutually communicated, a first mounting hole is formed in the die core, penetrates through the first waterway and the second waterway and is communicated with the first waterway and the second waterway, a first insert is arranged in the first mounting hole, a first annular water tank and a second annular water tank are arranged on the first insert, the first annular water tank and the second annular water tank are located at different heights relative to the first insert, the first annular water tank is communicated with the first waterway, the second annular water tank is communicated with the second waterway, a through hole penetrating through the first insert is formed in the radial direction of the first insert, the through hole is intersected with extension lines of the first waterway and the second waterway, and a first sealing ring is sleeved above and below the first annular water tank. The cooling structure has the advantages that the cooling structure can realize the arrangement of a cooling loop in a narrow space of a die, and the cooling effect is good.

Inventors

  • SHI XIAOJIAN
  • Feng Yizai
  • BAO KECHENG

Assignees

  • 宁海县第一注塑模具有限公司

Dates

Publication Date
20260505
Application Date
20210302

Claims (7)

  1. 1. The utility model provides a cooling structure of mould which characterized in that includes: The die comprises a die core, a first water channel, a second water channel, a first mounting hole, a second mounting hole, a first water channel and a second water channel, wherein the die core is provided with the first water channel and the second water channel along the height direction of the die core; The first insert is detachably arranged in the first mounting hole, a first annular water tank and a second annular water tank are arranged on the first insert along the circumferential direction of the first insert, the first annular water tank and the second annular water tank are positioned at different heights relative to the first insert, the first annular water tank is communicated with a first waterway, and the second annular water tank is communicated with a second waterway; The first sealing rings are sleeved on the first insert, and the first sealing rings are sleeved above and below the first annular water tank and the second annular water tank; the ejector pin sleeve is detachably arranged in the through hole in a penetrating mode, and the ejector pin is movably arranged in the ejector pin sleeve in a penetrating mode; The mold core is also provided with a third water channel, the first mounting hole penetrates through the third water channel and is communicated with the third water channel, the third water channel is positioned above the first water channel and the second water channel, the first insert is provided with a third annular water channel along the circumferential direction of the first insert, the third annular water channel is positioned above the first annular water channel and the second annular water channel and is communicated with the third water channel, and the first sealing rings are arranged above and below the third annular water channel; the first insert comprises a first flow guiding part, a second flow guiding part and a third flow guiding part which are sequentially arranged from bottom to top, wherein the sectional area of the first flow guiding part is larger than that of the second flow guiding part, the sectional area of the second flow guiding part is larger than that of the third flow guiding part, the first annular water tank is arranged on the first flow guiding part, the second annular water tank is arranged on the second flow guiding part, and the third annular water tank is arranged on the third flow guiding part.
  2. 2. The cooling structure of the mold according to claim 1, wherein a second sealing ring is arranged at the top of the first insert and is positioned between the first insert and the mold core, and the thimble sleeve penetrates through the second sealing ring.
  3. 3. The cooling structure of claim 2, wherein the bottom of the first insert is provided with a first threaded hole.
  4. 4. The cooling structure of a mold according to claim 1, wherein the first insert is provided with a seal groove along a circumferential direction thereof, the first seal ring is provided in the seal groove, and a depth of the seal groove is smaller than a diameter of the first seal ring.
  5. 5. The cooling structure of claim 1, wherein the first water channel and the second water channel penetrate through the same side surface of the mold core, and a water inlet and a water outlet are formed on the side surface.
  6. 6. The cooling structure of the mold according to claim 1, further comprising a second insert and a third seal ring, wherein a second mounting hole is formed in the mold core, and the second mounting hole penetrates through the first waterway and the second waterway and is communicated with the first waterway and the second waterway; The second insert is detachably arranged in the second mounting hole, a fourth annular water tank and a fifth annular water tank are arranged on the second insert, the fourth annular water tank is communicated with the first waterway, the fifth annular water tank is communicated with the second waterway, the third sealing ring is sleeved on the second insert, and the third sealing rings are arranged above and below the fourth annular water tank and the fifth annular water tank.
  7. 7. The cooling structure of claim 6, wherein the bottom surface of the first insert, the bottom surface of the second insert and the bottom surface of the mold core are all flush, and the bottom surface of the mold core is provided with a plurality of second threaded holes along the circumference of the first insert and along the circumference of the second insert.

Description

Cooling structure of mould Technical Field The invention relates to the technical field of dies, in particular to a cooling structure of a die. Background In injection mold and die casting mold, the temperature of the plastics or metal for the shaping product is higher, need in time cool down to the mould, lengthen the life of mould, and guarantee that the product can be fast but, the drawing of patterns, prevent that the product from appearing sticking to the mould, burn and because the uneven defect such as deformation of cooling appears. The most adopted mode at present is to set up a waterway in the mold core, and conduct the high-temperature plastic or metal to the temperature of the mold through the waterway to take away, so as to reduce the temperature of the mold and the product in time. The cooling systems of the existing dies are various, namely oil cooling and water cooling, and the water path comprises line cooling and point cooling, and the specific adopted cooling mode depends on the specific situation. In a general mold, the mold core material is the most expensive in the mold, the size of the mold core material is reduced, the manufacturing cost of the mold can be effectively reduced, and the enterprise competitiveness is improved, and for some specific products, the arrangement position of the ejector pins is strictly required by customers and cannot be easily changed, but the problem generally occurs that the positions of the ejector pins are close to the positions of the water paths, water leakage occurs after the ejector pins are used for a long time, or the positions of the ejector pins are easily interfered with the positions of the water paths, so that the ejector pins break the water paths, and the ejector pin water path breaking is not allowed to occur in the injection mold or the die casting mold, because the ejector pins leak water and enter the mold, and the molding quality of the product is affected. Therefore, how to install the cooling system in a compact and narrow space of the mold is a problem to be solved. As patent CN104441518a discloses a cooling water path structure of a circular box injection mold, it can solve the problems of uneven cooling effect and long dwell time existing in the traditional water well type cooling water path structure, and can solve the problem of easy water leakage existing in the existing mosaic type spiral water path structure, and ensure cooling effect and service life of the mold. The novel material additive manufacturing process comprises a first rear mold insert and a second rear mold insert, wherein an ejector rod of the second rear mold insert penetrates through the first rear mold insert during assembly, an ejector block of the second rear mold insert is sleeved in a top cavity of the first rear mold insert, a spiral water channel extending along the height of a molding cavity surface is formed on the peripheral side of the molding cavity surface of the first rear mold insert, and the spiral water channel is integrally formed by the first rear mold insert through the material additive manufacturing process. This structure cooling effect improves, but water route processing difficulty, and under not solving narrow and small space, set up the difficult problem of cooling system. Disclosure of Invention The invention aims to solve the technical problem of providing a mold cooling structure which can realize normal arrangement of a cooling loop in a narrow space. The invention solves the technical proposal that the invention provides a cooling structure of a mould, which comprises: The die comprises a die core, a first water channel, a second water channel, a first mounting hole, a second mounting hole, a first water channel and a second water channel, wherein the die core is provided with the first water channel and the second water channel along the height direction of the die core; The first insert is detachably arranged in the first mounting hole, a first annular water tank and a second annular water tank are arranged on the first insert along the circumferential direction of the first insert, the first annular water tank and the second annular water tank are positioned at different heights relative to the first insert, the first annular water tank is communicated with a first waterway, and the second annular water tank is communicated with a second waterway; The first sealing rings are sleeved on the first insert, and the first sealing rings are sleeved above and below the first annular water tank and the second annular water tank. Further, the novel thimble structure further comprises a thimble sleeve and a thimble, wherein the thimble sleeve is detachably arranged in the through hole in a penetrating mode, and the thimble is movably arranged in the thimble sleeve in a penetrating mode. Further, a second sealing ring is arranged at the top of the first insert and is positioned between the first insert and the mold core, and the thimble