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Double-layer type cylinder and heat flow channel device with same

A cylinder, double-layer technology, applied in the field of hot runner, can solve the problem of small cylinder thrust, and achieve the effect of high mold strength and small inner diameter of opening frame

Pending Publication Date: 2019-03-08
YUDO SUZHOU HOT RUNNER SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a double-layer cylinder and a hot runner device with the double-layer cylinder, which can solve the problem of low cylinder thrust in the prior art

Method used

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  • Double-layer type cylinder and heat flow channel device with same
  • Double-layer type cylinder and heat flow channel device with same
  • Double-layer type cylinder and heat flow channel device with same

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Embodiment Construction

[0025] The present invention will be described in detail below in conjunction with specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, method, or functional changes made by those skilled in the art according to these embodiments are included in the protection scope of the present invention.

[0026] It should be understood that although terms such as "first" and "second" may be used herein to describe various elements or structures, these described objects should not be limited by these terms. These terms are only used to distinguish these described objects from one another. For example, a first piston may be referred to as a second piston, and similarly, a second piston may also be referred to as a first piston, without departing from the scope of protection of the present application.

[0027] see Figure 1-5 , an embodiment of the present invention provides a hot runner device, which i...

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Abstract

The invention discloses a double-layer type cylinder and a heat flow channel device with the same. The cylinder comprises a cylinder body and a piston assembly; the cylinder body comprises a first gascavity, a second gas cavity and a middle partition plate arranged between the first gas cavity and the second gas cavity; the piston assembly comprises a piston rod, a first piston and a second piston, and the first piston and the second piston are connected to the piston rod and perform synchronous reciprocating movement in the longitudinal direction; the first gas cavity is divided by the firstpiston into a first main gas cavity body and a first auxiliary gas cavity body which are in waxing and waning relationships; the second gas cavity is divided by the second piston into a second main gas cavity body and a second auxiliary gas cavity body which are in waxing and waning relationships; the first main gas cavity body, the first auxiliary gas cavity body, the second main gas cavity bodyand the second auxiliary gas cavity body are sequentially distributed from top to bottom in the longitudinal direction; the first main cavity body and the second main gas cavity body are in conduction through a serial connection channel, and one of the first main cavity body and the second main gas cavity body communicates to a first gas way channel capable of introducing compressed gas; and oneof the first auxiliary gas cavity body and the second auxiliary gas cavity body communicates to the outside environment all the time and the other one of the first auxiliary gas cavity body and the second auxiliary gas cavity body communicates to a second gas way channel capable of introducing compressed gas.

Description

technical field [0001] The invention belongs to the technical field of hot runners, and relates to a double-layer cylinder and a hot runner device with the double-layer cylinder. Background technique [0002] The hot runner device in injection molding equipment is generally divided into two types: open type and needle valve type. For the commonly used needle valve type hot runner device, it generally includes a power mechanism, a hot nozzle, a valve needle, a valve needle sleeve, and a splitter plate. The power mechanism Drive the valve needle to reciprocate inside the hot nozzle, so that the valve needle opens and closes the injection port at the end of the hot nozzle. Among them, when sealing the needle (that is, when the valve needle closes the above-mentioned injection port), it is necessary to provide a large thrust to the valve needle to ensure the precise fit between the valve needle and the mold, thereby ensuring the injection molding quality. [0003] In the existi...

Claims

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Application Information

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IPC IPC(8): B29C45/27B29C45/28
CPCB29C45/27B29C45/281
Inventor 李象烈
Owner YUDO SUZHOU HOT RUNNER SYST
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