Search

CN-224224406-U - Injection mold structure for valve plastic part

CN224224406UCN 224224406 UCN224224406 UCN 224224406UCN-224224406-U

Abstract

The utility model provides a valve plastic part injection mold structure which comprises an upper mold body, a lower mold body and a mold top plate, wherein a pouring gate disc is embedded in the middle of the top end of the mold top plate, a pouring gate position is arranged in the center of the pouring gate disc, a hot runner is arranged at the bottom end of the pouring gate position, an annular electrothermal stone is arranged at the bottom end of the hot runner, a power receiving coil is arranged at the side part of the annular electrothermal stone, a power transmitting coil is arranged at the side part of the upper mold body, and the power transmitting coil is connected with the power receiving coil and enables the heating end face of the annular electrothermal stone to generate heat. According to the utility model, the power supply transmitting coil is arranged at the side part of the upper die body, and is connected with the power supply receiving coil, so that the heating end face of the annular electrothermal stone generates heat, and the hot runner can be heated by the generated heat, so that the temperature of the part of the hot runner is higher, the phenomenon of flow velocity reduction and adhesion is avoided, and the casting quality is ensured.

Inventors

  • Chen Benhuai

Assignees

  • 慈溪市秦智机械有限公司

Dates

Publication Date
20260512
Application Date
20250519

Claims (6)

  1. 1. The utility model provides a valve working of plastics injection mold structure, includes mould body (1), bed die body (2) and mould roof (3), its characterized in that, go up mould body (1), bed die body (2) compound die and install the top at last mould body (1) through the bolt mould roof (3), the inside of going up mould body (1) is provided with shaping chamber (15) that matches bed die body (2) die cavity, pouring basin (4) are inlayed in the middle part on mould roof (3) top, pouring basin (5) have been seted up in the center department of pouring basin (4), pouring basin (5) bottom is provided with hot runner (11), annular electrothermal stone (12) are installed to the bottom of hot runner (11), the lateral part of annular electrothermal stone (12) is provided with power receiving coil (13), power transmitting coil (14) are installed to the lateral part of going up mould body (1), power transmitting coil (14) are connected and make the terminal surface that generates heat of annular electrothermal stone (12).
  2. 2. The valve plastic part injection mold structure according to claim 1, wherein a cooling runner (16) distributed around the cavity (15) is further arranged in the upper mold body (1), and two ends of the cooling runner (16) are respectively provided with a water inlet double joint (17) and a water outlet double joint (18).
  3. 3. The valve plastic part injection mold structure according to claim 1, wherein a plurality of positioning recesses (7) are formed at the edge of the bottom end of the upper mold body (1), a plurality of limiting protrusions (8) are formed at the edge of the top end of the lower mold body (2), and each limiting protrusion (8) corresponds to each positioning recess (7).
  4. 4. The valve plastic part injection mold structure according to claim 1, wherein a connecting rod (6) is mounted on the side of the top end of the tundish (4), and the tail end of the connecting rod (6) protrudes out of the side edge of the mold top plate (3).
  5. 5. The valve plastic part injection mold structure according to claim 4, wherein the tail end of the connecting rod (6) is provided with a rotary connector (10), and the top end of the rotary connector (10) is provided with a telescopic cylinder (9).
  6. 6. The valve plastic part injection mold structure according to claim 1, wherein the heating end face of the annular electric heating stone (12) is attached to the outer wall surface of the hot runner (11), and the annular electric heating stone (12) is connected with the upper mold body (1) through a sealing structure.

Description

Injection mold structure for valve plastic part Technical Field The utility model belongs to the technical field of injection molds, and relates to a valve plastic part injection mold structure. Background The plastic valve is a valve made of plastic materials, has the characteristics of corrosion resistance, high temperature resistance, portability, easy installation and the like, and is produced by adopting an injection mold generally, such as a plastic valve handle injection molding mold disclosed in the patent application number of CN202310628474.X, wherein a female mold is arranged on the end surface of the fixed mold, which is close to the sliding mold, a plurality of molding cavities are arranged on the end surface of the female mold, a male mold is arranged on the end surface of the female mold, which is close to the fixed mold, a plurality of press fit templates are arranged on the end surface of the male mold, a material injection pipe orifice is arranged on one side of the press fit templates in the end surface of the sliding mold in a communicating manner, a first flow through inner pipe is arranged on one side of the material injection pipe in the male mold in a communicating manner, a plurality of second flow through inner pipes are arranged on two sides of the first flow through inner pipes in the male mold, and a plurality of injection ports communicated with the second flow through inner pipes are arranged on the end surfaces of the press fit templates. The scheme can carry out corresponding vibration treatment on the handle end and the rotating and twisting end and cooling treatment on a finished product when the plastic valve handle is demolded. The injection mold disclosed by the above has the defects that the flow velocity is reduced and the adhesion phenomenon is generated due to the fact that the hot melt plastic enters into a gate part with lower temperature, and the pouring quality is influenced, so that the valve plastic part injection mold structure is designed Disclosure of Invention The utility model aims to provide a valve plastic part injection mold structure so as to solve the problems in the background art. The valve plastic part injection mold structure comprises an upper mold body, a lower mold body and a mold top plate, wherein the upper mold body and the lower mold body are connected in a mold clamping mode, the mold top plate is arranged at the top of the upper mold body through bolts, a forming cavity matched with a cavity of the lower mold body is arranged in the upper mold body, a pouring basin is embedded in the middle of the top end of the mold top plate, a pouring gate position is arranged in the center of the pouring basin, a hot runner is arranged at the bottom end of the pouring gate position, an annular electric heating stone is arranged at the bottom end of the hot runner, a power receiving coil is arranged on the side part of the annular electric heating stone, and a power transmitting coil is arranged on the side part of the upper mold body and connected with the power receiving coil, so that heat is generated on the heating end face of the annular electric heating stone. In the valve plastic part injection mold structure, the upper mold body is further internally provided with cooling runners distributed around the molding cavity, and two ends of the cooling runners are respectively provided with a water inlet double joint and a water outlet double joint. In the valve plastic part injection mold structure, a plurality of positioning concave seats are formed in the edge of the bottom end of the upper mold body, a plurality of limiting protrusions are formed in the edge of the top end of the lower mold body, and each limiting protrusion corresponds to each positioning concave seat. In the valve plastic part injection mold structure, the side of the top end of the pouring disk is provided with the connecting rod, and the tail end of the connecting rod protrudes out of the side edge of the mold top plate. In the valve plastic part injection mold structure, the tail end of the connecting rod is provided with the rotary connector, and the top end of the rotary connector is provided with the telescopic cylinder. In the valve plastic part injection mold structure, the heating end face of the annular electric heating stone is attached to the outer wall face of the hot runner, and the annular electric heating stone is connected with the upper mold body through the sealing structure. Compared with the prior art, the valve plastic part injection mold structure has the advantages that the annular electric heating stone is arranged at the bottom end of the hot runner, the power receiving coil is arranged at the side part of the annular electric heating stone, the power transmitting coil is arranged at the side part of the upper mold body, the power transmitting coil is connected with the power receiving coil and enables the heating end face of the annular electric heati