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Display device for injection molding apparatus

A technology of an injection molding machine and a display device, applied in the field of display devices, can solve the problems of inability to accurately grasp the resin state, inability to accurately grasp the resin temperature, and inability to change the temperature setting, etc.

Active Publication Date: 2013-06-19
SUMITOMO HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, only displaying the temperature or temperature curve of the cylinder cannot accurately grasp the state of the resin in the cylinder
In addition, the relationship between the temperature of the cylinder wall and the internal resin temperature depends on the energy passing through the cylinder wall, and the internal resin temperature cannot be accurately grasped only by the temperature of the cylinder
Also, changing the temperature setting of one part of the cylinder cannot predict how the temperature of other parts of the cylinder will be affected

Method used

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  • Display device for injection molding apparatus
  • Display device for injection molding apparatus
  • Display device for injection molding apparatus

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Experimental program
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Effect test

Embodiment Construction

[0056] First, refer to Figure 1 to Figure 3 The injection device and heating cylinder of the injection molding machine to which the present invention can be applied will be described. figure 1 is a sectional view of the injection device 10 .

[0057] The injection device 10 has a heating cylinder (also referred to simply as a cylinder) 11 and a screw 13 that can rotate and move back and forth in the heating cylinder 11 . An injection nozzle 105 formed with a nozzle port 106 is provided at the front end of the cylinder 11 . The rear end of the cylinder 11 is connected with the cooling cylinder 14 , and the screw rod 13 runs through the cooling cylinder 14 and extends in the cylinder 11 . A cooling water pipe 14 a through which cooling water flows is formed in the wall of the cooling cylinder 14 . A resin supply port 112 is formed at a predetermined position of the cooling cylinder 14 . The hopper 12 is connected to the resin supply port 112 through the connecting cylinder ...

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PUM

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Abstract

Provided is a display device for an injection molding apparatus, which melts a resin both with a melting heat generated by the rotation of a screw (13) and by a heater mounted in a cylinder (11). The display device is characterized in that the energy quantity of the neighborhood of the inner wall of the cylinder (11), that is, at least one of a temperature, a heat flow speed and a heat flow rate is calculated on the basis of the detected temperature values of temperature detectors (A-1 to E-2) arranged along the axial direction of the cylinder (11) and is displayed to correspond to the axial position of the cylinder (11). The energy quantity is displayed by continuous lines indicating the numerical values, arrows, bar graphs and numerical values. Alternatively, the energy quantity is displayed by a plurality of lines.

Description

technical field [0001] The present invention relates to a display device of an injection molding machine, in particular to a display device of an injection molding machine which melts and injects resin in a cylinder. Background technique [0002] In order to maintain the quality of resin molded products during injection molding, it is important to monitor and manage the molten state of the resin in the cylinder of the injection device. Although the melting state of the resin in the cylinder can be grasped by the temperature of the resin, since the temperature of the resin cannot be directly measured, a method of calculating the energy given to the resin in the cylinder and estimating the resin temperature has been proposed. The energy given to the resin in the cylinder is calculated based on measured values ​​such as the temperature of the cylinder wall and the torque of the screw. [0003] In order to grasp the change of the resin in the cylinder, a method of displaying th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/17B29C45/78
CPCB29C2945/7619B29C2945/76518B29C2045/7606B29C45/76B29C2945/7604
Inventor 冈田德高大西祐史
Owner SUMITOMO HEAVY IND LTD