JPH0126411Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for holding sheet molding compound material (hereinafter abbreviated as SMC material).

One type of device that holds SMC material for the purpose of charging it into a mold, for example, is one that holds the SMC material by piercing it with a piercing rod. The lower end of the stabbing rod is provided with an arrowhead-shaped part, and this arrowhead-shaped part penetrates the SMC material and protrudes to the lower side,
It engages and holds the SMC material,
Holding devices of this type are provided with a stripping member movable in the longitudinal direction of the stabbing rod in order to brush off the SMC material from the stabbing rod. This scraping member is moved by an appropriate drive device such as an air cylinder and is held by a stabbing rod.
This member comes into contact with the top surface of the SMC material and pushes it away from the stabbing rod. Conventionally, this scraping member only brushed off the SMC material from the stabbing rod; There was a problem that could not be corrected. SMC
The material is often plastically deformed when it is knocked off the stabbing rod, and this plastic deformation is not eliminated simply by allowing it to fall onto a supporting surface.

Furthermore, when the supporting surface that receives the fallen SMC material is a curved or inclined surface, there is a problem in that the SMC material tends to shift on the supporting surface. In particular, when SMC material is put into a mold, the temperature of the mold is high, so the part of the SMC material that comes into contact with the mold surface often melts and becomes slippery, causing it to shift from its normal position. It was occurring.

In order to solve these problems, this invention
In addition to simply brushing off the SMC material from the stabbing rod, the brushed-off SMC material is actively pressed against a support surface such as a mold surface to correct plastic deformation.
SMC that can prevent shifting on the supporting surface
This was done for the purpose of providing a material holding device.

In order to achieve this purpose, the present invention
The SMC material holding device includes (a) a main body of the holding device; (b) a stabbing rod extending downward from the main body and having an arrowhead-shaped portion at a lower end for stabbing and holding sheet molding compound material; c) a drive device provided in the holding device body and having an actuation member that operates in a direction parallel to the stabbing rod; and (d) a drive device that is movable relative to the actuation member in a direction parallel to the stabbing rod by the actuation member. (e) a dispensing member that is held in place and prevented from moving beyond a certain limit relative to the operating member toward the tip of the stabbing rod; and (e) a dispensing member provided between the dispensing member and the operating member. and a spring that biases the scraping member toward the tip of the stabbing rod, and the driving device is in a scraping position where the scraping member is pressed against the stopper by the spring and protrudes from the piercing rod. The actuating member is moved between the standby position and the standby position where it is retracted from the stabbing rod.

In the holding device configured in this way,
When removing SMC material, by appropriately determining the relative position of the holding device and supporting member such as a mold, the driving device advances the removing member.
After the SMC material is brushed off the stab bar, the stripping member may be further advanced to force the SMC material against a support surface, such as a mold surface.

Therefore, the plastic deformation that tends to occur in the SMC material when it is brushed off is corrected. In addition, even if the supporting surface is an inclined surface, a curved surface, or a high temperature surface such as a mold surface, the
The displacement of the SMC material is well prevented. By actively pressing the SMC material against the support surface, it adheres to the support surface and is prevented from slipping. Also, the SMC material is supported on the mold surface, which has a high temperature, and the parts that are in contact with the mold surface Even if the material melts and becomes slippery, the scraping member does not slip because it is in contact with the opposite surface, and after the SMC material is bonded to the mold surface,
If the scraping member is separated from the SMC material,
This effectively prevents the SMC material from shifting on the mold surface.

In addition, since the holding device according to the present invention drives the brushing-off member via a spring to a drive device, by appropriately selecting the spring characteristics of the spring, the SMC material can be pressed against the supporting surface with an appropriate force. be able to.

In particular, when using a cylindrical member fitted on the outside of the stabbing rod as a scraping member, SMC
Since the part of the material in the immediate vicinity of the engagement part with the stabbing rod can be pushed and brushed off, plastic deformation of the SMC material can be effectively avoided. As a result, it is easier to press the SMC material onto an inclined or curved surface than when using a single scraping plate having a surface shape corresponding to the mold surface.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

FIG. 1 shows the present invention in which SMC material 1 is introduced into a predetermined position of the lower mold 10 of a mold in an open state.
2 shows an embodiment in which the device is applied to a holding device for holding the device 2, and this device is equipped with a device main body 14. This device main body 14 is installed by appropriate means.
The SMC material is moved from the receiving position to the charging position above the lower mold 10 shown in FIG. Explanation will be omitted. An appropriate number of piercing rods 16 are inserted from the device body 14.
extends downward, and an arrowhead-shaped portion 18 is provided at its lower end. Arrowhead-shaped part 18
is slightly thicker than the other parts of the stabbing rod 16, and has a sharpened tip.

A scraping plate 20 is provided so as to be movable in the longitudinal direction of the piercing rod 16. This scraping plate 20 is provided with an appropriate number of through holes 22, and the stabbing rod 16 extends through these through holes 22. The knock-off plate 20 is connected to piston rods 26 of a suitable number of air cylinders 24 fixed downwardly to the main body 14 of the device. A piston rod 26 is inserted into a through hole of the knock-off plate 20, and a stopper 25 is provided at the protruding end thereof.
A compression coil spring 29 is disposed between a spring receiver 27 fixed to the piston rod 26 and the knock-off plate 20. Therefore, the blow-off plate 20 is moved up and down along the stabbing rod 16 by the air cylinder 24.

The stabbing rod 16 protrudes downwardly from the scraping plate 20, and a cylindrical scraping tube 28 is fitted on the outside of this protrusion and is fixed to the lower surface of the scraping plate 20. Brush off tube 28
is normally in a standby position retracted from the arrowhead-shaped portion 18 of the stabbing rod 16, as shown in FIG. It is adapted to be moved to a downwardly protruding sweeping position. The inner diameter of the knock-off tube 28 is made slightly larger than the diameter of the arrowhead-shaped portion 18 of the stabbing rod 16.

When the SMC material 12 is held by the holding device configured as described above, the device main body 14 is
Move to the SMC material receiving position and remove the cylinder 2.
8 is in the standby position, the device body 14 is lowered, or the support plate supporting the SMC material 12 is raised, and the piercing rod 16 is inserted.
Pierce SMC material 12. At this time, the arrowhead-shaped portion 18 penetrates the SMC material 12 and protrudes to the back side of the SMC material 12, engaging with and holding the SMC material 12.

The holding device holding the SMC material 12 in this manner is moved to a predetermined loading position above the lower mold 10. FIG. 1 shows this state.
Subsequently, when the air cylinder 24 is operated to lower the scraping tube 28 together with the scraping plate 20, the lower end surface of the scraping tube 28 is exposed to the SMC material 12.
It abuts in an annular manner around the portion held by the arrowhead-shaped portion 18 of. As a result, the spring 29 is connected to the SMC material 12 and the arrowhead-shaped portion 1 via the brush-off cylinder 28 and the brush-off plate 20.
A force corresponding to the engagement force with 8 will be applied, but since the preload of the spring 29 is greater than this force, the spring 29 will not be compressed.
The SMC material 12 is pushed off from the stabbing rod 16 and falls onto the lower die 10. At this time, since the brushing off cylinder 28 comes into annular contact with the SMC material 12 in the close vicinity of the engaging portion with the stabbing rod 16, the brushing off cylinder 28 brushes off the SMC material 12 while effectively preventing the engaging portion from rising upward. It can be dropped.

Further, when the SMC material 12 is dropped, the scraping plate 20 and the scraping tube 28 are lowered by the air cylinder 24 to follow the SMC material 12, and press the SMC material 12 against the mold surface of the lower mold 10. Then, the piston rod 2 after pressing
The extra working stroke of 6 is absorbed by the spring 29 and the SMC material 12 is pressed against the lower mold 10 with the proper force. As a result, the plastic deformation that occurred in the SMC material 12 at the time of scraping is corrected, and the SMC material on the mold surface of the lower mold 10 is
Displacement of the material 12 is effectively prevented.

As is clear from the above description, in this embodiment, the air cylinder 24 constitutes a driving device that drives the scraping tube 28 as a scraping member, and the piston rod 26 functions as an operating member. Become.

Another embodiment of the present invention is shown in FIGS. 3 and 4. In this device, the brush-off cylinder 30
is attached so as to be movable in a direction parallel to the stabbing rod 16. That is, the brush-off cylinder 30 is slidably fitted to the outside of the cylindrical guide member 32, and is prevented from coming off by a stopper plate 34 fixed to the lower end of the guide member 32. The guide member 32 is the piercing rod 16
It is fitted on the outside of the wiper plate 20 and fixed to the lower surface of the wiper plate 20. Brush off tube 3
A compression coil spring 36 is disposed with a constant preload between the flange of the guide member 32 and the flange of the guide member 32, and urges the brush-off cylinder 30 toward the tip of the stabbing rod 16.

With the above configuration, the blow-off plate 20, the guide member 32, and the blow-off tube 30 are moved to the stabbing rod 1 by the operation of the air cylinder 24.
6, whereby the brushing off tube 30 protrudes downward a short distance from the lower end of the stabbing rod 16;
The lower end surface is moved by the arrowhead-shaped portion 18 to and from the standby position located above. That is, in this embodiment, the air cylinder 24 constitutes a driving device, the scraping tube 30 constitutes a scraping member, the scraping plate 20 and the guide member 32 constitute an operating member, and the stopper plate 34 constitutes a stopper. It is composed of

According to the device of this embodiment, after the SMC material 12 is pushed off from the stabbing rod 16 by the scraping tube 30, the SMC material 12
It is possible to substantially correct the plastic deformation that has occurred, and also to prevent the SMC material 12 from shifting on the mold surface 38.

FIG. 5 shows yet another embodiment of the present invention.
This device is a device that holds the SMC material 12 in order to be introduced into the lower mold 10 whose mold surface 38 is inclined.
The lengths of the plurality of stabbing rods 16 are such that when the main body 14 of the apparatus is moved directly above the lower mold 10, the lower ends of the stabbing rods 16 are separated from the mold surface 38 of the lower mold 10 by the same small distance. It is defined as follows.
Further, a pressing member 42 is attached to the lower end of the brushing off tube 30 with a pin 40 so that the angle can be adjusted.
It is made to abut on the SMC material 12 via. Further, the set load of the compression coil spring 36 is set to be smaller than the holding force of the SMC material 12 by the piercing rod 16, and the spring 36 is set to be smaller than the holding force of the SMC material 12 by the piercing rod 16. When the spring 36 is compressed by a certain amount greater than the
The spring constant of the spring 36 is selected so that the biasing force of is greater than the SMC material holding force of the piercing rod 16.

Therefore, in the device of this embodiment, the scraping tube 30 pushes the SMC material 1 through the pressing member 42.
2 and is pushed off from the piercing rod 16 and dropped onto the mold surface 38 of the lower mold 10. Moreover,
The pressing member 42 and the scraping tube 30 are used to remove the falling SMC material 12 by the urging force of the spring 36.
, and press it against the mold surface 38. As a result, the plastic deformation of the SMC material 12 is corrected in the same manner as in the apparatus of the embodiment, and the SMC
The material 12 is prevented from sliding along the mold surface 38. After the SMC material 12 is in close contact with the mold surface 38, it will no longer slide on the mold surface 38, so the air cylinder 24 is used to blow it off to the mold surface 38.
Even when the pressing member 42 is raised, the SMC material 12 remains accurately positioned on the mold surface 38. Therefore, by retracting the main holding device from a position above the lower mold 10 and lowering the upper mold (not shown) instead, the SMC material 12 can be molded at a precise position on the mold surface 38.

As is clear from the above description, in this embodiment, the air cylinder 24 constitutes a drive device,
The scraping tube 30 and the pressing member 42 constitute a scraping member, the scraping plate 20 and the guide member 32 constitute an operating member, and the stopper plate 34 constitutes a stopper.

It should be noted that in each of the above embodiments,
Although the brush-off member is a cylindrical brush-off tube, the cross-sectional shape of the brush-off tube is not limited to a circular shape, and can be changed as appropriate to match the shape of the arrowhead-shaped portion of the stabbing rod, etc. . It is also possible to make the scraping plate 20 directly contact the SMC material to function as a scraping member.

In addition, it goes without saying that the present invention can be implemented in various modifications and improvements based on the knowledge of those skilled in the art without departing from the scope of the claims for utility model registration.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional front view of an SMC material holding device which is an embodiment of the present invention. 2 is a front view showing the device shown in FIG. 1 in different operating states; FIG. FIGS. 3 and 4 are views corresponding to FIGS. 1 and 2 in another embodiment of the present invention, respectively. FIG. 5 is a partially sectional front view of still another embodiment of the present invention. 12: SMC material, 14: Device main body, 16: Pierce rod, 18: Arrowhead-shaped part, 20: Brush-off plate, 24: Air cylinder, 25: Stopper, 2
7: Spring receiver, 28: Wipe-off tube, 29: Spring, 30: Wipe-off tube, 32: Guide member, 34: Stopper plate, 36: Compression coil spring, 42: Pressing member.

Claims (1)

[Claims for Utility Model Registration] 1. A holding device main body, and a device extending downward from the holding device main body,
a stabbing rod having an arrowhead-shaped portion at its lower end for stabbing and holding sheet molding compound material; a driving device provided in the holding device body and having an actuating member that operates in a direction parallel to the stabbing rod; The actuating member holds the actuating member so as to be movable relative to the actuating member in a direction parallel to the stabbing rod, and the stopper prevents the actuating member from moving relative to the actuating member toward the tip of the stabbing rod beyond a certain limit. a prevented brush-off member; and a spring provided between the brush-off member and the actuating member to bias the brush-off member toward the tip of the stabbing rod, and the drive device includes: The operating member is moved so that the brushing member pressed against the stopper by the spring moves between a brushing off position where it protrudes from the stabbing rod and a standby position where it is retracted from the stabbing bar. A sheet molding compound material holding device. 2. The sheet molding compound material holding device according to claim 1, wherein the scraping member is a cylindrical scraping tube fitted on the outside of the stabbing rod.