JP2006076229A - Plasticizing device-attaching method of on-line blend injection molding machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plasticizing device-attaching method of an on-line blend injection molding machine constituted so as to attach a plasticizing device to a drive part side in a movable manner without performing troublesome disassembling and attaching work even if the barrel length of an extruder is altered and facilitating the centering thereof at the time of assembling. <P>SOLUTION: In the plasticizing device-attaching method of the on-line blend injection molding machine, the drive part of the plasticizing device is attached to the frame of the on-line blend injection molding machine in an axially movable manner. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a method for attaching a plasticizing device of an on-line blend injection molding machine in which a resin material from a feeder is plasticized by a plasticizing device, the plasticized resin is supplied to an injection device via an accumulator, and injection molding is performed.

  The on-line blend injection molding machine does not require pellets for the resin material to be supplied to the injection molding machine, and can be supplied directly from the resin material manufacturing process, so that the pellet manufacturing process can be omitted. It has become.

Since an on-line blend injection molding machine uses an extruder as a plasticizing device, a drive unit including a motor and a gear box of the extruder needs to be attached to an extruder screw so that the position thereof can be finely adjusted in a vertical plane. .
JP-A-5-131509 Japanese Patent Laid-Open No. 7-112467

This plasticizing device, that is, the extruder, may change the heating barrel length or screw length depending on the resin material supplied, etc. In that case, the extruder tip side is connected to the injection molding machine and fixed in position. Therefore, it is extremely important that the plasticizer moves to the drive side as a relief when the heating barrel is thermally expanded, and multiple mounting positions are prepared for heating barrels of different lengths in advance. Therefore, when changing the heating barrel, it was necessary to carry out disassembly and attachment work each time, which was troublesome.
Also, when assembling the online blend injection molding machine, the plasticizing device is located at the upper part of the injection device, and there is no alignment mechanism for the upper, lower, left, and right. When I assembled it by force, the shaft centered out, and when it was assembled forcibly, distortion accumulated and led to damage to the machinery itself.

  Even if there is a change in the barrel length of the extruder or the heating barrel is thermally expanded, the present invention movably attaches the plasticizing device to the drive unit side without performing troublesome disassembly and attachment work, It is an object of the present invention to provide a mounting method that can easily bring out the vertical and horizontal positions when assembling.

  In order to achieve the above-mentioned object, the present invention firstly plasticizes a resin material from a feeder by a plasticizing apparatus, and supplies the plasticized resin to an injection apparatus through an accumulator to perform injection molding. In the plasticizing apparatus mounting method of the machine, the plasticizing apparatus mounting method of the on-line blend injection molding machine is characterized in that the driving unit of the plasticizing apparatus is mounted on the frame of the injection molding machine so as to be movable in the axial direction.

  According to a second aspect of the present invention, a more preferable plasticizer mounting method for an on-line blend injection molding machine is provided by providing a moving means that enables the drive unit of the plasticizer to move in the axial direction.

  According to a third aspect of the present invention, there is provided a driving unit frame on which a driving unit of a plasticizing device is mounted on a frame of the injection molding machine, and the driving unit frame is attached to be movable in the axial direction. The on-line blend injection molding machine mounting method described in 1 was used.

  According to a fourth aspect of the present invention, a more preferable plasticizer mounting method for an on-line blend injection molding machine can be obtained by providing a moving unit that can move in the axial direction in the drive unit frame.

  According to a fifth aspect of the present invention, there is provided a plasticizing device mounting method for an on-line blend injection molding machine, wherein the drive unit is mounted so that the vertical position of the plasticizing device can be adjusted.

  According to a sixth aspect of the present invention, the drive unit is mounted on a base, and a vertical position adjusting means for the plasticizing device is provided between the base and the drive unit frame, and the vertical position is mounted so that the position can be adjusted. The on-line blend injection molding machine has a plasticizing device mounting method.

  According to a seventh aspect of the present invention, there is provided an on-line blend injection molding machine plasticizing device mounting method characterized in that the vertical adjustment of the plasticizing device is performed between the frame of the same injection molding machine and the drive unit frame.

  According to an eighth aspect of the present invention, there is provided a plasticizer attachment method for an on-line blend injection molding machine, wherein the vertical position adjustment means of the plasticizer is to insert and remove a wedge.

  According to a ninth aspect of the present invention, there is provided the plasticizing device mounting method of an on-line blend injection molding machine, wherein the vertical position adjusting means of the plasticizing device is a screw pulling mechanism.

  According to a tenth aspect of the present invention, there is provided an on-line blend injection molding machine plasticizing device mounting method characterized in that the vertical position adjusting means of the plasticizing device is based on an increase or decrease in spacers.

  According to a tenth aspect of the present invention, there is provided a plasticizing device mounting method for an on-line blend injection molding machine characterized in that the plasticizing device is provided with position adjusting means capable of adjusting the position in the left-right direction with respect to the axis.

  According to an eleventh aspect of the present invention, there is provided a plasticizer mounting method for an on-line blend injection molding machine characterized in that the length of the column supporting the heating barrel of the plasticizer can be adjusted from below.

  According to a twelfth aspect of the present invention, there is provided a plasticizing device mounting method for an on-line blend injection molding machine, characterized in that a support is attached to the support column.

  According to a thirteenth aspect of the present invention, if a moving means for moving in the axial direction is provided in the drive unit frame, a more preferable method for attaching a plasticizing device for an on-line blend injection molding machine.

  According to this invention, even if there is a change in the barrel length of the extruder, the plasticizing device can be movably attached to the drive unit side without performing troublesome disassembly and attachment work, and the centering can be easily performed during assembly. It has become possible to provide a method for attaching a plasticizing device.

  1 to 3, an embodiment of the present invention will be described. Reference numeral 1 denotes an on-line blend injection molding machine, which includes an extruder 4 which is a plasticizing device including a feeder 3 driven by a motor 2, and an extruder 4. It comprises an accumulator 5 that passes or temporarily stores a plasticized resin material, and an injection molding machine (only the injection device 6 is described) for injection molding the plasticized resin sent from the accumulator 5.

  The rotation of the screw 7 of the extruder 4 is driven by a motor 8 through a gear box 9, and the resin material supplied from the feeder 3 is sheared by the rotation of the screw 7 and by a heating device such as a heater (not shown). The plasticized resin is stored in the accumulator 5 as a plasticized resin, and the valve 11 is opened during the injection process of the injection molding machine. The plasticized resin is supplied to the injection device 6 and injected by the plunger 12 by hydraulic pressure.

The online blend injection molding machine 1 is fixed to a frame 15 to which an injection device 6 is fixed. The drive unit (motor 8 and gear box 9) 10 of the extruder 4 is fixed to the drive unit base 14, and selectively moves in the axial direction by the push-pull device 19 on the drive unit frame 16 provided on the frame 15. Is possible.
Here, the drive unit 10 can be moved not only on the drive unit frame 16 as described above, but also on the frame 15 with the drive unit 10 mounted thereon.

  The pushing / pulling device 19 as the moving means pushes and pulls the adjusting screw 20 between the fixed part (frame 15) and the moving part (driving part base 14 on which the driving part 10 is mounted) to move the driving part 10 in the axial direction. In order to move the drive unit frame 16 with the drive unit 10 mounted thereon, the drive unit frame 16 may be provided between the drive unit frame 16 and the frame 15.

  A base 21 to which the feeder 3 is attached is fixed to the drive unit base 14, the heating barrel 17 of the extruder 4 is changed, the barrel length is changed, and the axial position of the resin material supply port 18 is moved. In this case, the feeder 3 is moved along with the movement of the drive unit 10.

The drive unit base 14 is composed of a taper member 22 and a base plate 23 provided with taper portions at both front and rear ends, and wedges 24 and 25 are pushed and pulled between the members 22 and 23 by push / pull bolts 26 and 27. Then, the drive unit base 14 moves up and down on the drive unit frame 16 and, for example, the vertical adjustment is performed so that the extruder 4 and the shaft center A become the axis A as shown in FIG.
The drive unit base 14 has been adjusted in the vertical direction by inserting and removing the wedges 24 and 25. However, the present invention is not limited to this, and a spacer is inserted below the drive unit base 14 (there are no taper portions at both ends). It is also possible to adjust in the vertical direction by increasing or decreasing.

The column 28 rotates the adjusting bolt 29 to push and pull the heating barrel 17 up and down to change the distance C between the injection device 6 and the extruder 4. In this description, the column 28 is the distance C between the injection device 6 and the extruder 4, but the present invention is not limited to this, and the distance L may be adjusted by rising from the injection device base 13.
Furthermore, since the heating barrel 17 is normally heated, a heat insulating material 30 is preferably provided between the heating barrel 17 and the support column 28 in order to eliminate heat conduction.

  Further, left and right adjusting devices 31 for adjusting the left and right directions are provided on both side surfaces of the drive unit base 14, and the push-pull screw 32 is rotated so that the plasticizing device 4 is adjusted to the axis A.

Even if there is a change in the barrel length of the extruder according to the present invention, the plasticizing device is movably attached to the drive unit side without performing troublesome disassembly and attachment work, and the centering is facilitated during assembly. A plasticizing device can be attached.
In the above description, the injection molding machine has been described with the hydraulic method, but it is obvious that the injection molding machine is not limited to this and may be an electric injection molding machine.

It is explanatory drawing which shows the outline | summary to which the plasticizing apparatus attachment method of the online blend injection molding machine by this invention is applied. It is explanatory drawing which shows the outline | summary to which the plasticizing apparatus attachment method of the online blend injection molding machine by this invention is applied, and is explanatory drawing of the Z arrow direction of FIG. It is explanatory drawing which shows the outline | summary to which the plasticizing apparatus attachment method of the online blend injection molding machine by this invention is applied, and is the enlarged detailed view of the "a" part of FIG.

Explanation of symbols

1 Online blend injection molding machine 2 Motor (for feeder)
3 Feeder 4 Extruder 5 Accumulator 6 Injection molding machine (injection device)
7 Extruder screw 8 Motor (for extruder)
9 Gearbox 10 Drive unit (motor, gearbox)
11 Valve 12 Plunger 14 Drive unit base 15 Frame 16 Drive unit frame 17 Heating barrel 18 Resin material supply port 19 Push-pull device 20 Adjustment screw 21 Base 22 Taper member 23 Base plate 24, 25 Wedge 26, 27 Push-pull Bolt 28 Post 29 Adjustment bolt 30 Insulation 31 Left-right adjustment device 32 Push-pull screw

Claims (13)

  In an on-line blend injection molding machine mounting method for plasticizing a resin material from a feeder by a plasticizing device and supplying the plasticized resin to an injection device via an accumulator, the injection molding machine A plasticizer mounting method for an on-line blend injection molding machine, wherein a drive unit including a motor and a gear box for a plasticizer is provided on a frame so as to be movable in an axial direction.   2. The method for attaching a plasticizing device to an on-line blend injection molding machine according to claim 1, wherein the driving unit of the plasticizing device is provided with a moving means that is movable in the axial direction.   2. The on-line blend according to claim 1, wherein a drive unit frame having a plasticizer drive unit mounted thereon is provided on the frame of the injection molding machine, and the drive unit frame is attached to be movable in the axial direction. A method of attaching a plasticizing device of an injection molding machine.   4. The method for attaching a plasticizing device to an on-line blend injection molding machine according to claim 3, wherein said driving unit frame is provided with moving means for enabling movement in the axial direction.   The method for attaching a plasticizing device to an on-line blend injection molding machine according to any one of claims 1 and 2, wherein the driving unit is attached so that the position of the plasticizing device can be adjusted in the vertical direction. The drive unit is mounted on a base, and a vertical position adjusting means of a plasticizing device is provided between the base and the drive unit frame, and the vertical position is mounted so that the position can be adjusted. Item 5. The method for attaching a plasticizing device to an on-line blend injection molding machine according to any one of items 3 and 4. 4. The method of mounting an on-line blend injection molding machine according to claim 3, wherein the vertical adjustment of the plasticizing apparatus is performed between the frame of the injection molding machine and the drive unit frame.   7. The method for attaching a plasticizing device to an on-line blend injection molding machine according to claim 5, wherein the vertical position adjusting means of the plasticizing device is to insert and remove a wedge. .   7. The method for attaching a plasticizing device to an on-line blend injection molding machine according to claim 5, wherein the vertical position adjusting means of the plasticizing device is a screw push-pull mechanism. .   7. The method for attaching a plasticizing device to an on-line blend injection molding machine according to any one of claims 5 and 6, wherein the vertical position adjusting means of the plasticizing device is based on an increase or decrease of a spacer.   7. The plasticizing apparatus for an on-line blend injection molding machine according to claim 1, wherein said plasticizing apparatus is provided with a position adjusting means capable of adjusting a position in the left-right direction with respect to an axis. Installation method.   8. The method for attaching a plasticizing device to an on-line blend injection molding machine according to any one of claims 1 to 7, wherein the length of the support for supporting the heating barrel of the plasticizing device from below is adjustable. 9. The method of attaching a plasticizing device for an on-line blend injection molding machine according to claim 1, wherein a heat insulating material is attached to the support column.

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