Check patentability & draft patents in minutes with Patsnap Eureka AI!

Injection device and injection molding machine

A technology of injection device and opposing surface, which is applied in the field of screw structure, can solve the problems of sliding surface wear, increased contact times, accelerated wear, etc., and achieve the effect of inhibiting wear

Active Publication Date: 2021-09-24
SUMITOMO HEAVY IND LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the non-combined type screw head device in which the non-return ring is freely rotatable with respect to the head main body, the head main body rotates in a state where the rear end of the head main body is in contact with the front end of the non-return ring during metering. wear on sliding surfaces
In particular, when molding with a high-viscosity resin at a high cycle time, the force pressing the non-return ring against the head body becomes large, and the number of times of contact also increases, thereby accelerating wear.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Injection device and injection molding machine
  • Injection device and injection molding machine
  • Injection device and injection molding machine

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach ＞

[0025] (injection molding machine)

[0026] figure 1 It is a figure which shows the state at the end of mold opening of the injection molding machine by 1st Embodiment. figure 2 It is a figure which shows the state at the time of mold clamping of the injection molding machine based on 1st Embodiment. exist figure 1 and figure 2 Among them, the X direction, the Y direction, and the Z direction are directions perpendicular to each other. The X direction and the Y direction represent the horizontal direction, and the Z direction represents the vertical direction. When the mold clamping device 100 is a horizontal type, the X direction is the mold opening and closing direction, and the Y direction is the width direction of the injection molding machine 10 . Such as figure 1 and figure 2 As shown, the injection molding machine 10 has a mold clamping device 100 , an ejector device 200 , an injection device 300 , a moving device 400 , a control device 700 , and a frame 900 ....

no. 2 Embodiment approach ＞

[0136] Next, an injection molding machine according to a second embodiment will be described. The injection molding machine according to the second embodiment differs from the injection molding machine according to the first embodiment in the shape of the head main body portion 332 of the screw head 331 . The other shapes are the same, and repeated explanations are omitted. Figure 11 It is a side view of the screw head apparatus of 2nd Embodiment.

[0137] The screw head 331A of the second embodiment has a head body portion 332A and a rod portion 333 . In addition, a helical head groove portion 332 a whose rotation direction is opposite to the groove 338 of the flight screw 335 is formed in the head main body portion 332A.

[0138] Moreover, the surface which faces the front-end surface of the non-turn ring 339 among the side surfaces which form the head groove part 332a is called groove part side surface 332b. Furthermore, a head opposing surface 332c2 facing the non-retu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention provides an injection device and an injection molding machine capable of suppressing wear on a contact surface between a head main body and a non-return ring. The injection device of the present invention comprises: a cylinder (310); a screw (330), which is rotatably arranged in the cylinder (310) so as to advance and retreat; a rotation mechanism (340) that rotates the screw (330); and an advancing and retreating mechanism (350), make the screw (330) advance and retreat, the screw (330) has an integrally rotating screw head (331), a sealing ring (334), a threaded screw (335) and a non-co-rotating check ring (339), the screw head ( 331) has a head groove portion (332a) formed in a helical shape opposite to a helical groove (338) formed along the thread (337) of the threaded screw (335).

Description

[0001] This application claims priority based on Japanese Patent Application No. 2018-065240 filed on March 29, 2018. The entire content of this application is incorporated in this specification by reference. technical field [0002] The invention relates to an injection device and an injection molding machine, in particular to a structure of a screw of the injection device. Background technique [0003] Patent Document 1 discloses a head body, a non-return ring (referred to as a ring valve in Patent Document 1), and a seal ring (referred to as a seat ring in Patent Document 1) that are installed freely axially displaceable. Screw head device. When the screw head device performs metering, the non-return ring moves forward, and the front end of the non-return ring comes into contact with the rear end of the head main body to open the space for the resin flow path. Furthermore, when injection is performed, the non-return ring moves backward, and the rear end of the non-retur...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/60B29C45/50
CPCB29C45/60B29C45/50B29C45/47B29C2045/526B29C2045/528
Inventor 两角智人
Owner SUMITOMO HEAVY IND LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com