Unlock instant, AI-driven research and patent intelligence for your innovation.

Injection moulding machine

A technology of injection molding machine and target temperature, which is applied in the field of injection molding machines, and can solve problems such as deterioration of resin fluidity and heavy load on injection devices

Active Publication Date: 2013-09-25
SUMITOMO HEAVY IND LTD
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And when the temperature of the resin is too low, the fluidity of the resin deteriorates, and the load on the injection device is too large.

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 moulding machine
  • Injection moulding machine
  • Injection moulding machine

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach ）

[0047] figure 1 It is a diagram showing the outline of the injection molding machine according to the first embodiment of the present invention. figure 1 Indicates the status of mold clamping.

[0048] The injection molding machine 10 includes: a frame 11 ; a fixed platen 12 fixed to the frame 11 ; and a plurality of (for example, four) connecting rods 16 extending from the fixed platen 12 . In addition, the injection molding machine 10 further includes a movable platen 13 disposed opposite to the fixed platen 12 and disposed so as to be movable (movable in the left-right direction in the figure) along the connecting rod 16 . A movable mold 33 is installed on the surface opposite to the fixed platen 12 of the movable platen 13 , and a fixed mold 32 is installed on the surface opposite to the movable platen 13 of the fixed platen 12 . The mold device 30 is constituted by the fixed mold 32 and the movable mold 33 . Mold closing, mold clamping and mold opening are performed ...

no. 2 approach

[0085] In the first embodiment described above, the target temperature distribution in the cylinder axial direction of the cylinder inner wall is set in advance.

[0086] In the present embodiment, the cylinder and / or the target temperature at a predetermined position inside the cylinder is set in advance.

[0087] Figure 4 It is a figure which shows the main part of the injection molding machine of 2nd Embodiment of this invention. The injection molding machine includes a cylinder 141, a screw 152 for conveying resin in the cylinder 141, and a plurality of heat sources H for heating the cylinder 141. 1 ~H 4 And the cooling part 161 at the rear of the cooling cylinder 141.

[0088] The screw 152 is rotatably and axially movable within the cylinder 141 . As the screw 152 rotates, the resin pellets are conveyed forward along the helical grooves formed on the screw 152 .

[0089] Heating source H 1 ~H 4 The cylinder 141 is heated to melt the resin in the cylinder 141 . a...

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 invention provides an injection moulding machine, wherein the temperature of resin in a cylinder is managed. The injection moulding machine (10) comprises the components as follows: the cylinder (41) provided with resin; a plurality of heating sources (91-94) for heating the cylinder (41); a plurality of temperature sensors (21-24) for detection temperature at different positions of the cylinder (41); and a control apparatus (80) for controlling the heating sources (91-94) according to the temperature difference of the object temperature obtained by the temperature sensors (21-24) at different positions. The axial object temperature distribution is preset in the cylinder. The injection moulding machine is characterized in that the control apparatus (80) calculates the object temperature at the test positions of the temperature sensors (21-24) according to object temperature distribution, and control on the heating sources (91-94) is achieved according to the calculated object temperature.

Description

technical field [0001] The present invention relates to injection molding machines. Background technique [0002] The injection molding machine includes an injection device that injects molten resin into the mold device. The mold device is composed of a fixed mold and a movable mold, and a cavity space is formed between the fixed mold and the movable mold when the mold is closed. The injection device injects the resin melted in the cylinder from a nozzle provided at the front end of the cylinder, and fills the cavity space in the mold device. The resin cooled and solidified in the cavity space is taken out as a molded product after the mold is opened. [0003] The injection device includes a screw that is freely rotatable and axially movable within the cylinder. A resin material is supplied from a hopper to one end of the screw. When the screw rotates, the screw scraper (flight) moves, and the resin filled in the screw groove is transferred from the hopper side to the no...

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 Applications(China)
IPC IPC(8): B29C45/78
Inventor 定本知德森田洋
Owner SUMITOMO HEAVY IND LTD