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

Vertical injection molding machine

An injection molding machine, vertical technology, applied in the direction of coating, etc., can solve the problems of limit pin or limit part damage, mold damage, limit pin and limit part contact wear, etc.

Inactive Publication Date: 2008-10-22
TOYO MACH & METAL CO LTD
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] but, Figure 10 In the vertical injection molding machine shown, since the positive and negative rotating limit pins of the rotary table repeatedly press the limit parts during molding, the respective contact parts of the limit pins and the limit parts are worn out. When the vertical injection molding machine is operated, it is difficult to stop each lower mold at a predetermined position due to wear of components such as stopper pins for positioning.
In addition, if the vertical molding machine continues to operate with the contact part worn out, the mold to be clamped will be shifted from the specified position, and there may be concerns that the mold will be damaged during mold clamping.
In addition, since wear parts such as stopper pins and stoppers need to be replaced periodically, it is time-consuming to replace the wear parts, and the vertical injection molding machine has to be interrupted one by one for the replacement operation. In the vertical injection molding machine that integrally molds insert parts made of metal and resin with resin, the manufacturing cost of the manufactured molded body becomes high.
[0006] In addition, if the stopper pin collides with the stopper, there is a concern that not only the stopper pin or the stopper is damaged, but also the drive system of the turntable is damaged.
Therefore, since it is necessary to reliably stop the turntable just before the stopper pin and the stopper come into contact, it is necessary to increase the deceleration distance until the stop, but there is a problem that if the deceleration distance becomes larger, the turntable The time from the start to stop of the rotation of the rotation is longer, and the result is that the overall forming cycle time is longer
However, when the stopper is not used, if the turntable continues to rotate in the same direction, the number of pulses of the encoder will continue to increase, eventually exceeding the maximum number of pulses that the encoder can count, and the turntable cannot be detected. Correct position, i.e. angle of the turntable
In order to prevent this, it is necessary to reset the count so that the maximum number of pulses that the encoder can count will not be exceeded, but it is difficult to accurately detect the position of the rotary table, that is, the angle of the rotary table, and reset it without a stopper.

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
  • Vertical injection molding machine
  • Vertical injection molding machine
  • Vertical injection molding machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] figure 1 It is the front view of the vertical injection molding machine of Example 1, figure 2 It is a plan view of the vertical injection molding machine, and FIG. 3 is a cross-sectional view showing a state in which the main parts of the vertical injection molding machine are viewed from above, Figure 4 is a cross-sectional view showing the main part of the vertical injection molding machine, and FIG. 5 is a graph showing the stopping accuracy of the rotary table.

[0039] figure 1 The shown vertical injection molding machine 1 opens and closes the mold in the longitudinal direction to form a molded body in which insert parts such as metal parts are integrally molded with resin, and an intermediate mold is fixed on the machine table 2 of the vertical injection molding machine 1 . Holding plate 10 is provided with an upper side holding plate 13 at its upper side, as Figure 4 As shown, three cylindrical connecting rods 12 erected on the upper side holding plate ...

Embodiment 2

[0059] Figure 6~ Figure 9 Showing Embodiment 2 of the present invention, FIG. 6 is a sectional view showing a vertical injection molding machine viewed from above, and FIG. 7 is a block diagram showing a schematic structure for rotationally driving a turntable, Figure 8 It is a comparison chart showing the relationship between the number of revolutions of the servo motor, the encoder pulse, and the number of revolutions of the turntable. Figure 9 It is an example of table rotation setting image. Should Figure 9 The table rotation setting image shows an example of an image of the display mechanism of the molding machine control mechanism (not shown) that manages the control of the vertical injection molding machine 1 connected to the motor control mechanism 51. The angle of the table (deg). This is: if the turntable 14 rotates, the display image of the angle (°) of the turntable 14 following it is displayed. Since one turn is 360°, 1 / 2 turn is displayed as 180° ( Figur...

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 relates to a longitudinal ejection molding machine, which can hold the sliding resistance of rotational table and periodically feed lubricant to the sliding part of rotational table, to position the rotational table, wherein when the molding machine (1) operates, the pump (30) can feed lubricant to the sliding part (S), to keep the sliding resistance of sliding part (S); at the time that the rotation numbers of servo motor (25) and rotation table (14) are integers, the motor controller (51) returns the impulse account output by coder (29), therefore, even the rotation table rotates to same direction, the error of impulse will not be accumulated.

Description

technical field [0001] The present invention relates to a vertical injection molding machine that molds a molded body by opening and closing a mold in the longitudinal direction, and particularly relates to a vertical injection molding machine equipped with a mold equipped with a rotary table. Background technique [0002] So far, what has been used is a so-called double-station type vertical injection molding machine, which rotates the rotary table so that the two lower molds mounted on the rotary table are moved relative to one upper mold. The relative position of opening and closing, so as to carry out mold closing in the longitudinal direction. In such a so-called double-station type vertical injection molding machine that clamps the upper mold and a plurality of lower molds, the manufacturing method adopted is: between mold clamping steps for molding molded objects, Assemble metal parts for insert molding to the lower mold arranged on the opposite side of the lower mol...

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): B29C45/06B29C45/83B29C45/76B29C45/14
Inventor 国松清神田雄一郎
Owner TOYO MACH & METAL CO LTD