JPH0369319A - Inverting device for mold carrier - Google Patents

Abstract

PURPOSE:To perform positioning of a mold carrier to an inventing position and transfer of the mold carrier respectively with low accuracy and smooth, by a method wherein the title device is provided with an inverting guide rail devide and carrier transfer device. CONSTITUTION:A mold carrier 1 is transferred by fitting a top 71 side of a framework body 5 with a mold and a pair of rollers 11, 12 fitted with a bracket 10 is positioned in a horizontal direction. A bottom 72 side of the framework body 5 is fitted with a powder box in which thermoplastic synthetic resin is held. An inverting guide rail device 70 is driven, the mold carrier 1 is inverted and thermoplastic synthetic resin powder is filled into the mold through the powder box. After molding, the mold carrier 1 is inverted and the powder box is separated from the mold carrier 1. Since the mold carrier 1 is supported with guide rails 3, 4 and the title inverting device is fitted in the mold carrier 1 through inverting guide rails 73, 74, positioning of the mold carrier 1 to an inverting position can be performed with low accuracy and transfer of the mold carrier 1 is performed smooth.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mold carrier reversing device used in powder slush molding.

[Prior Art] Powder slush molding devices used for manufacturing automobile interior materials and the like are conventionally known.

For example, in Japanese Patent Application Laid-open No. 63-239017,
A mold carrier equipped with a framework for attaching a mold and a powder box is sequentially moved from the mold attachment/detachment station to the mold preheating station, powder casting station, cure heating station, mold cooling station, and then back to the mold again. A continuous molding device is disclosed in which the molding device is returned to an attachment/detachment station. Invert the mold carrier to a powder casting station, etc. in order to fill the thermoplastic synthetic resin powder from the powder box in which it is placed, or to return excess thermoplastic synthetic resin powder from the mold to the powder box after molding. A reversing device is installed for this purpose.

[Problems to be Solved by the Invention] However, such conventional reversing devices are
As disclosed in Japanese Patent No. 3-147611, a cut portion of a certain length is provided at one point of one of a pair of guide rails for guiding a mold carrier, and a guide rail for reversing the book is provided here. Then, when the mold carrier is transferred onto this reversing guide rail, the reversing guide rail and mold carrier are integrated with a lock pin, and then the mold carrier is reversed by rotating the reversing guide rail. Therefore, it is necessary to accurately position the lock pin insertion hole penetrated through the reversing guide rail and the lock pin insertion hole penetrated through the mold frame. Therefore, the transfer control for transferring the mold carrier onto the reversing guide rail becomes sophisticated, and the positional alignment of both holes is likely to be incorrect.

Focusing on this, and as a result of intensive studies from various aspects in order to solve this problem, the present invention has developed a system in which at least one pair of roller guides attached to a mold carrier are arranged above and below, instead of the above-mentioned rod-bin method. They discovered that it is sufficient to provide a clamping system in which they are supported by a pair of reversing guide rails and rotated together.

[Means for Solving the Problems] That is, the mold carrier reversing device according to the present invention includes a pair of guide rails installed horizontally at regular intervals;
A mold carrier is equipped with a roller that comes into contact with the guide rail on each of the left and right support shafts, one end of which is fixed to the frame body on which the slush molding mold and powder box are attached, and a mold carrier that is attached to the tip of one of the support shafts. A mounted bracket, at least one pair of roller guides mounted on the bracket at regular intervals, and a pair of reversing guide rails to form a horizontal passage for receiving these roller guides, so as to be intermittently driven and rotated. a reversing guide rail device mounted vertically opposite to the tip of the mounted horizontal shaft; and a carrier transfer device that intermittently transports the mold carrier in the extending direction of the guide rail while positioning the roller guide in the horizontal direction. It is characterized by having the following.

[Example] In the following, an example will be described. In FIG. 1, which is a front view, and FIG. 2, which is a plan view of FIG. 3. The left and right guide rails are installed horizontally on the
4, this carrier 1 is constructed by fixing a pair of support shafts 6.7 to a rectangular framework 5, and has rollers 8 and 9 attached to the support shafts 6.7 so as to be rotatable. are doing. Note that the rollers 8 and 9 are in contact with the guide rail 3.4,
A bracket 1 is fixed to the tip of the support shaft 6.
A pair of roller guides 11 and 12 are mounted at regular intervals on the roller 0 so as to be rotatable.

By applying an external force to the mold carrier 1, the mold carrier 1 can be moved on the guide rail 3.4. This is carried out via a mold carrier transfer device 15, which is comprised of one claw mechanism 13 shown in the figure and the other claw mechanism 14 shown in FIG. 5, which is a front view. Note that one claw mechanism 13 and the other claw i
The mechanisms 14 are of the same construction and are mounted so that the support shafts 6, 7 of the mold carrier I can be locked and transferred by the claws 16, 17 of both mechanisms.

Here, regarding one claw mechanism 13, this mechanism 13 includes three guide rails 18, 19, and 20 fixed to the device frame 2, and a pair of claw guides 22.23 fixed to the saddle 21. , a pawl 16 fitted between the guides 22 and 23 so as to be able to move up and down, a cam fitting 24 fixed to the pawl 16, and a shaft fixed to the cam fitting 24 so as to be rotatable. Collocam 25 attached to
A bracket 26 fixed to the saddle 21, a block 27 fixed to this bracket 26, and this block 2
A pair of rollers 28 and 29 are rotatably mounted on a shaft fixed to a shaft 7 and abutted on opposite sides of the guide rail 19, and a bracket 30 fixed to a saddle 21.
．． 31, a block 32 fixed to the bracket 30, and a pair of rollers 33, 34 rotatably mounted on a shaft fixed to the block 32 and abutted on opposite sides of the guide rail 2o. , shafts 35.36, 37.38 fixed to the saddle 21, and rollers 39, 40 rotatably mounted on the shaft 36.38 so as to be engaged with the guide rail 20 through the guide groove. , the shaft 35.37 to be engaged with the guide rail 19 via the guide groove.
rollers 41 and 42 mounted so as to be able to rotate; gragets 43 and 44 fixed to the saddle 21; two attachment pars 45 and 46 fixed to the bracket 43 and 44; and two attachment pars 45 and 46 fixed to the saddle 21. bracket 4
7, a chain holder 48 having one end fixed to the bracket 47 and the other end fixed to the device frame 2, a block 49 fixed to the bracket 31, and a bracket 3o.
A block 5o is fixed to the block 5o, and one end is fixed to the block 49, and ft! 11 is fixed to the block 5o,
The link chain 51 is mounted so as to be able to reciprocate while being guided by the guide rail 18, and the vertical frames 2c and 2d of the device frame 2 as shown in FIG. Bracket 52.53 fixed to
and a pair of arms 56, 57 that are swingably attached to the brackets 52, 53 via bins 54, 55.
and a bottle 58. attached to the upper end side of the arm 56.57.
A cam guide 6o is fixed to the arm 59, a rod 63 is fixed to the lower end of the arm 56 and 57 via a pair of pins 61 and 62, and a piston rod is connected to one end of the rod 63. The air cylinder 64 is fixed to the horizontal frame 2e of No. 2.

The link chain 51 is connected to a driving side chain wheel and a driven side chain wheel (not shown). Therefore, when the driving side chain wheel is driven and rotated, the link chain 51 is guided. The saddle 21 is guided by the rails 18 and moved in the same direction, and the colocam 25 is moved in the same direction by the guide rails 19 and 20.
The saddle 21 is moved in the same direction together with the saddle 21 while being guided by the handle 21 and rotated. At this time, the saddle 21 is moved back and forth to the left and right within the entire length of the cam guide 60 so that the colo cam 25 does not separate from the open end in the longitudinal direction of the cam guide 6o, which is always kept in a horizontal state. movement is controlled. Note that a control signal for reducing the moving speed of the saddle 21 and then stopping it is generated by causing the attachment pars 45 and 46 to act on a limit switch (not shown) mounted at a predetermined position on the device frame. At the same time, the movement of the saddle 21 of the other claw mechanism 14 is also controlled in the same way.For this reason, the support shaft of the mold carrier 1 is controlled by the claws 16 and 17 of the double claw mechanism 13 and 14. When the 6°7 is locked, the mold carrier 1 can be transferred to a predetermined position.

As shown in FIG. 4, the claws 16.17 of the double claw mechanism 13.14 are provided with a recess 65 at the upper end, and the mold carrier 1 is supported by the left and right facing surfaces of the recess 65. The shafts 6, 7 can be locked, and when the shafts 6, 7 are locked, the pawls 16, 17 are raised to predetermined positions so that a gap is formed between the bottom oil level of the recess 65 and the support shafts 6, 7. Note that both pawls 16 and 17 are normally moved downward, and their upper ends are positioned at approximately the same level as the upper end of the saddle 21.

Therefore, the saddle 21 can be mounted without being obstructed by the support shaft 6.7 of the mold carrier 1 placed on the guide rails 3, 4.
and, after being respectively positioned below the support shafts 6, 7 of the mold carrier 1, they are moved upwards to the support shafts 6, 7 of the mold carrier 1.
．． 7 is locked.

This figure is shown in Figures 3 to 5, but the nail 1
The vertical movement control in 6.17 is performed by vertically moving the cam guide 60 horizontally via the air cylinder 64. That is, in FIG. 6, the air cylinder 6
When the piston rod 4 is sunk, the rod 63 connected to it is moved to the left, and the arms 56 and 57 are moved to the bin 5.
The cam guide 6 is swung clockwise around 4°55 as a fulcrum.
0 is moved upwards. For this reason, the roller cam 25 that is engaged with the guide 60 is moved upward, and therefore the claw 16
．． 17 is moved upward. At that time, the claws 16 and 17 are
It moves guided by claw guides 22 and 23. Note that an elongated hole 66 is passed through the saddle 21 so that the cam fitting 24 can move up and down.

In this way, the pawls 16, 17 can be moved upwards together, whereas the air cylinder 6
By protruding the piston rod of 4, the claw 16.1
7 can be moved downward together. In this case, the arms 56, 57 are swung counterclockwise about the pins 54, 55, and the cam guide 60 is moved downward.

The piston rod of the air cylinder 64 is controlled to move in and out by causing the attachments 67 and 68 attached to the tip of the rod 63 to act on a limit switch (not shown) attached to a predetermined position on the device frame 2. The movement of the saddle 21 is controlled by causing the attachment pars 45 and 46 to act on a limit switch (not shown) mounted at a predetermined position on the device frame 2.

The mold carrier 1 is then transferred by the above-mentioned mold carrier transfer device 15 to the reversing guide rail device 70 shown by the chain line in FIG.

For example, if this is a powder casting station, the slush molding die is heated to a predetermined temperature at the previous station and transferred. At that time, the mold carrier 1 is The mold is attached to the upper surface 71@ of the frame body 5 with bolts etc., and the pair of rollers 11 and 12 attached to the bracket 10 are kept in a horizontal position and transferred there. It's coming. A powder box containing thermoplastic synthetic resin powder is attached to the lower surface 721 of the framework 5 shown in FIG. The powder box is lifted from below by a lifter (not shown), and is attached to the lower surface 72 of the framework 5 via a clamp (not shown) am attached to the box. Then, the reversing guide rail device 70 is driven, the mold carrier 1 is reversed, and thermoplastic synthetic resin powder is filled into the mold from the powder box. After molding, the mold carrier 1 is turned over and returned to its original position, excess thermoplastic synthetic resin powder is discharged from the mold into a powder box, and then this powder box is removed from the mold carrier 1. .

In this way, the mold carrier 1 is reversed as required, but this is done by using the horizontal passage formed between the pair of reversing guide rails 73 and 74, as shown in FIG. 8.9. With the roller guides 11 and 12 of the mold carrier 1 positioned at the guide rails 73 and 75,
．． 74 is reversed.

The reversing guide rail device 70 includes a horizontal shaft 78 mounted so as to be rotatable on a pair of bearings 76 and 77 fixed on a base fixed to the device frame, and this shaft 78.
An encoder 79 with an input shaft connected to one end, a flange 80 fixed to the other end of the shaft 78, and a flange 80.
an upper bracket 81 and a lower bracket 82 fixed to the brackets 81 and 82; a reversing guide rail 73.74 fixed to both brackets 81, 82 so as to face each other vertically to form a horizontal passage 75; and a reversing guide rail 73, 74 fixed to the horizontal shaft 78. a chain wheel 83 and a pulley 84, and a motor 85 fixed on the base.
and a chain wheel 8 fixed to the output shaft of the motor 85.
Kake is giving cheno to 6 and chain wheel 83.

Therefore, the horizontal shaft 78 can be rotated by driving the motor 85, but at this time, the encoder 79
The rotation can be controlled intermittently to 0 degrees, and the reversing guide rails 73 and 74 can be positioned horizontally when the rotation is stopped. Note that the horizontal passage 75 is the roller guide 1 of the mold carrier 1 that is positioned in the horizontal direction and is transferred.
1.12, so that both roller guides 11.12 are transferred into the horizontal passage 75 from the widened inlet shown in FIG. The reversing guide rails 73 and 74 restrict movement in the vertical direction and in the axial direction of the horizontal shaft 78. FIG. 2 shows this state, that is, the state in which both roller guides 11 and 12 are moved to a predetermined position in the horizontal passage 75 and engaged with the mold carrier 1 which is stationary. The axial center of the support shaft 6 and the axial center of the horizontal shaft 78 are located on the same straight line.

Then, when the motor 85 is driven and the reversing guide rails 73 and 74 are rotated, the mold carrier 1
are supported by the guide rail 3.4 via rollers 8 and 9, so they are rotated together, and just before being rotated to 180 degrees, the rotational speed is decelerated and stopped quietly when rotated to 180 degrees. be done. Therefore, it is possible to prevent the mold carrier 1 from being excessively vibrated when the rotation is stopped. This deceleration is achieved by a pulley 87 hooked on a belt to a pulley 84, and a rotating shaft 8 to which this pulley 87 is fixed.
a deceleration control device 93 equipped with attachments 89 and 90 fixed to 8 and limit switches 91 and 92 mounted so as to be able to act on these attachments;
It is done through.

Note that the rotating shaft 88 and the like are mounted on a suitable bracket fixed on the base.

In addition, during this reversal, vertical movement of the mold carrier 1 is prevented by one roller holding device 95 shown in FIGS. 10 to 12 and the other roller holding device 96 shown in FIGS. 13 to 15. be done.

The roller pressing device 95 is shown in FIG. 10 which is a front view, FIG. 11 which is a right curved view of FIG. 10, and Y-Yllll in FIG.
In FIG. 12, which is a front view, an air cylinder 98 is fixed to a bracket 97 fixed to the horizontal frame 2f of the device frame, and an air cylinder 98 is attached to the lower end of the piston rod of the air cylinder 98 via a shaft coupling 99. a claw fixture 100, a presser claw 101 fixed to this fixture 100, and a claw guide 10 fixed to a bracket 97.
2 to 105, and attachments 106 and 107 attached to the upper end of the piston rod of the air cylinder 98,
Limit switch 109.1 fixed to bracket 108 (see FIG. 11) fixed to bracket 97
It consists of 10.

In FIGS. 10 and 11, the air cylinder 9
The piston rod 8 protrudes downward, and the presser claw 1
The roller 8 attached to the support shaft 6 of the mold carrier 1 is positioned in the recess 111 provided at the lower end of the mold carrier 1, and the roller 8 is lightly pressed against the guide rail 3. Although shown, the presser claw 101 is normally
has been moved upwards. And, as mentioned above, the mold carrier transfer equipment? When the mold carrier l is transferred to the reversing position by the IF 15 and positioned in a predetermined position relative to the reversing guide rails 73 and 74 of the reversing guide rail device 70, the piston rod of the air cylinder 98 projects downward. and press the rollers 8 lightly against the guide rail 3.

At this time, the downward stroke of the piston rod of the air cylinder 98 is controlled by the contact of the attachment 106 with the limit switch 109.

In addition to the pressing by this device 95, the other roller pressing device 96, which will be described later, presses, that is, the rollers 9 attached to the support shaft 7 of the mold carrier 1 are lightly pressed against the guide rail 4, and In this state, the reversing guide rails 73 and 74 are rotated, and the mold carrier 1 is reversed. Therefore, it is possible to prevent the mold carrier 1 from moving up and down during reversal, and then, after a predetermined period of time has elapsed, the reversal guide rails 73 and 74 are rotated again, and the mold carrier 1 is returned to its original position. Ru. Then, the piston rod of the air cylinder 98 is projected upward, but -
The other roller pressing device 96, which will be described later, is similarly controlled. The upward stroke at this time is controlled by contact of the attachment 107 with the limit switch 110.

Next, the other roller pressing device 96
In FIG. 14, which is a left side view of FIG. 13, and FIG. 15, which is a sectional view taken along line XX in FIG. 113, a pawl fitting 115 attached to the lower end of the piston rod of the air cylinder 113 via a shaft coupling 114, a presser pawl 116 fixed to this fitting 115, and a pawl 116 fixed to the bracket 112 at regular intervals. Brackets 117, 118 and graget 1
claw guides 119 and 120 fixed to 1f and 118;
Attachments 121 and 122 attached to the upper end of the piston rod of the air cylinder 113 and the bracket 1
It is fixed to a bracket 123 which is fixed to the 12, and is composed of a Mitswitch 124 and 125.

Note that a recess 126 is provided on the lower end side of the presser claw 116, and when the piston opening/y of the air cylinder 113 is protruded downward, the support shaft 7 of the mold carrier 1 is attached to the recess 126. The roller 9 can be lightly pressed against the guide rail 4, and the downward stroke of the piston rod of the air cylinder 113 at that time is controlled by the limit switch 124.
It is controlled by the contact of the attachment 121 with the. Further, the upward stroke when separating the presser pawl 116 from the roller 9 and positioning it upward is controlled by the limit switch 12.
5 is controlled by the contact of attachment 122 with respect to 5.

And both pressers? l! 95.96 presser claw 101°1
16 are moved upward together, the mold carrier transfer device 15 is driven and its pair of pawl mechanisms 13, 14
The mold carrier 1 is transferred from the reversed position to another location by being locked by the claws 16 and 17 of the mold carrier 1.

Hereafter, the pawls 16,17 are moved downwards, and then the saddle 21 is moved to an upstream position where it locks the next mold carrier 1. At this time, the claw 16. which has been moved downward.
Since the upper end of the saddle 17 is located at approximately the same level as the upper end of the saddle 21, it can be moved below the mold carrier 1 to be locked next.

Subsequently, the pawls 16.17 of the pawl II structures 13 and 14 are moved upward, and the support shaft 6.7 of the mold carrier 1 is locked by these, and then transferred to the reversal position and the reversal guide rail device 70 It is positioned at a predetermined position relative to a pair of reversing guide rails 73 and 74. Then, the roller presser device 95
．． The presser claws 101 and 116 of 96 are moved downward together, so that the mold carrier 1 is pressed against the guide rail 3.4 supporting it, and in this state, the reversing guide rail device 70 is driven. Then, the mold carrier 1 is turned over. Furthermore, when the mold carrier 1 is reversed to its original position by the reversing guide rail device 70, the presser claws 101, 116 of both presser devices 95°96
are moved upward together, and thereafter, as described above, the mold carrier 1 is transferred from the reversal position to another location.

In this way, according to the present reversing device, the mold carrier 1
can be always supported by the guide rails 3, 4 and can be engaged with the mold carrier 1 via the pair of upper and lower reversing guide rails 73, 74, so the positioning of the mold carrier 1 to the reversing position can be done roughly (with low precision). ) can be done,
Moreover, the mold carrier 1 can be transferred smoothly.

The mold carrier 1 is provided in such a structure that when placed on the guide rail 3.degree. 4, the pair of roller guides 11, 12 are automatically positioned in the horizontal direction.

Although one embodiment has been described above, in the present invention,
If the mold carrier is provided with a well-balanced structure that does not cause vertical damping when inverted, the roller holding device 95°96 can be omitted, but -
It is preferable to attach these to the mold carrier transfer device 15, and either one of them may be attached as necessary.Also, the mold carrier transfer device may be provided in a device having another structure, and the mold carrier transfer device 15 In the case where a support shaft 6.7 is provided, a claw 16.17 may be mounted so as to act on the support shaft 6.7 from above (like the claw 16a shown by a chain line in FIG. 10), and further, Two or more roller guides may be attached to the mold carrier.

[Effects of the Invention] As described above, the present invention provides a mold carrier that allows rough (low precision) positioning of the mold carrier to the reversal position and smooth transfer of the mold carrier. A reversing device is obtained.

[Brief explanation of drawings]

Fig. 1 is a front view showing the mold carrier 1 supported by guide rails 3°4, Fig. 2 is a plan view of Fig. 1, and Fig. 3
The figure shows one claw mechanism 13 of the mold temple Yaria transfer device 15.
4 is a left side view of FIG. 3, FIG. 5 is a front view of the other claw mechanism 14 of the mold carrier transfer device 15,
Fig. 6 is a view taken from arrow 2 in Fig. 3, Fig. 7 is a plan view of the reversing guide rail device 70, Fig. 8 is a vertical sectional view of Fig. 7, Fig. 9
The figure is a right side view of FIG. 8, FIG. 10 is a front view of one roller holding device 95, FIG. 11 is a right curved view of FIG. 10, and FIG.
The figure is a YY sectional view of FIG. 11, FIG. 13 is a front view of the other roller holding device 96, and FIG. 14 is a left side view of FIG. 13.
FIG. 15 is a sectional view taken along line XX in FIG. 14. DESCRIPTION OF SYMBOLS 1... Mold carrier, 3.4... Guide rail, 5... Frame body, 6.7... Support shaft, 8, 9...
Roller, 10... Bracket, 11.12... Roller guide, 15... Mold carrier transfer device, 70...
・Reversing guide rail device, 73.74... Reversing guide rail, 75... Horizontal passage, 78... Horizontal axis,
95,96...roller presser device

Claims (1)

[Claims] 1. A pair of guide rails installed horizontally at regular intervals, and a roller that abuts the guide rails on each of the left and right support shafts, one end of which is fixed to the frame body on which the slush molding mold and powder box are installed. A mold carrier equipped with a mold carrier, a bracket attached to the tip of one of the support shafts, at least a pair of roller guides attached to the bracket at regular intervals, and a horizontal passageway for receiving these roller guides. A reversing guide rail device is provided with a pair of reversing guide rails vertically opposed to each other on the tip of a horizontal shaft mounted so as to be able to be driven and rotated intermittently; A mold carrier reversing device, comprising: a carrier transfer device that intermittently transfers the mold carrier in the extending direction of the guide rail.