JPS62110812A - Metal die separating machine - Google Patents

Abstract

PURPOSE:To improve the efficiency of metal die separation and to prevent damage to die surfaces by constructing separating means such that a wedgelike projection is inserted into a joining groove of a metal die in the radial direction to separate a male die from a female die and both the separated dies are pulled in the axial direction. CONSTITUTION:A metal die where a male die 2 is fitted into a female die 3 and a joining groove 5 is engaged to a guide prolection 37d is carried onto a stage 25. The male die 2 and the female die 3 are separated by inserting a wedgelike projection 6 into the joining groove 5 in the radial direction of the metal die by actuation of each piston rod 11 of plural metal die separating means 7. An electromagnet 8 attracted on the outside wall of the male die 2 and of the female die 3 is pulled in the axial direction using a piston rod 17 of a metal die pulling means 9 to separate the male die 2 from the female die 3 in the above separating direction. In this method, metal die separation efficiency is improved and damage to the metal die surfaces is preventable.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a separator for steel molds in which a male mold is fitted into a female mold.

(b) Problems to be solved by the prior art and the invention The mold consisting of a male die and a female die used for extrusion molding of aluminum and plastic deck snow has a structure in which the inside of the mold is closed after one extrusion process is completed. The material stuck in the passageway solidifies and the male and female molds must be unmated and the material in the passageway removed before the mold can be used again.

In such cases, until now, the male mold and the old mold were stuck together through the assimilated material in the mold passage, so it was not easy to separate the male mold and the female mold, and the joint between the male mold and the female mold was difficult to separate. The reality is that the mold is divided by driving a chisel into the groove, and the male and female molds are separated.

However, the work of driving in the chisel is manual and inefficient, and when separating the male and female molds, the chisel may be driven in too much, causing the male mold's seal protrusion, which is the lifeblood of the mold, to be damaged. Sometimes it hurt the female type's inner self.

SUMMARY OF THE INVENTION An object of the present invention is to provide a mold separator that improves the efficiency of mold separation and does not damage the soldering protrusion during mold separation.

(c) Means and Examples for Solving Problems As shown in the drawings, the mold separator 1 of the present invention that achieves the above object is made of a steel mold in which a male mold 2 is fitted into a female mold 3. A plurality of mold dividing means 7 for dividing the male mold 2 and the female mold 3 by pushing wedge-shaped protrusions 6 at their tips into the joint groove 5 of the male mold 2 and the female mold 3 in the radial direction. , 7.7, and a pair of mold pulling means 9, 9 which are arranged on both sides of the mold 4 in the axial direction and pull the male mold 2 and the female mold 3 in the separating direction.

The mold dividing means 7 connects the wedge-shaped protrusion 6 to the piston rod 1.
Fluid pressure cylinder 1 such as a hydraulic cylinder attached to the tip of 1
0, the wedge-shaped protrusion 6 is pushed into the joint groove 5 of the male die 2 and the female die 3 in the radial direction by the extension of the rod 11, and the male die 2
and divide female type 3.

It is preferable that three mold dividing means 7 be arranged around the joint groove 5 of the mold 4 so that an average dividing pressing force can be applied to the mold 4 as shown in the drawing. In particular, it is preferable to arrange the three mold dividing means 7 so that the extended lines of all the wedge-shaped protrusions 6 in the pushing direction intersect at one point, and the intersecting angles of the adjacent extended lines form 120 degrees. .

As shown in FIG.
The inclination angle α of the inclined surface 12 on the side is the inclined surface 13 on the female mold 3 side.
Inclination angle βJ: is small, so that when the wedge-shaped protrusion 6 is pushed in, the top of the wedge-shaped protrusion 6 or the inclined surface 12 on the side of the male die 2 will hit the dowel protrusion 14 of the male die 2 and damage it. It is configured so that it does not.

Furthermore, a stepped portion 15 is formed at the base of the inclined surfaces 12 and 13 of this wedge-shaped projection 6 to prevent the wedge-shaped projection 6 from being over-inserted. The structure is such that the contact surface between the male die 2 and the female die 3, including the solder protrusion 14, is not damaged. Therefore, this stepped portion 15
The forming position corresponds to the pushing position of the wedge-shaped protrusion 6 when the male mold 2 and the female mold 3 are separated to the extent that the male mold 2 and the female mold 3 can be separated by the mold pulling means 9. Set.

A pair of mold traction means 9, 9 are connected to the outer wall 40.4 of the mold 4.
It consists of a fluid pressure cylinder 16 such as an air cylinder, which has an electromagnet 8 attached to the tip of a piston rod 17 that attracts zero. In the example of the drawing, the electromagnet 8 is composed of a cylindrical electromagnet 8a and a disc-shaped electromagnet 8b, and is attracted to the outer walls 40, 40 of the male die 2 and the female die 3 in the axial direction. The mold 2 and female mold 3 are pulled in the separation direction. 18,1
8 is a guide bar for preventing the rod 17 from shaking vertically and horizontally when the piston rod 17 expands and contracts.

The attraction force due to the magnetic force of the electromagnet 8 must be larger than the pulling force of the piston rod 17 when the mold is divided, and be large enough to separate the divided male mold 2 or female mold 3 after the mold is divided while being attracted. is necessary.

19. 19 is a projection attached to the inside of the side walls 38, 38 of the main body of the separator 1, and after pulling the split male mold 2 or split female mold 3 attracted by the electromagnet 8 to the side wall 38 position of the main body. This is to prevent the mold from still being attracted to the electromagnet 8 due to the residual magnetism of the electromagnet Fi 8 when the electromagnet is energized to release it from attraction. That is, when the electromagnet 8 is de-energized after pulling the divided mold up to about 19 protrusions, the piston rod 1
7 and electromagnet 8 go down to the rear of protrusion 19.19,
The divided mold is obstructed by the protrusions 19, 19, and even if there is residual magnetism, it is released from the electromagnetic Fi8. If this protrusion 19.19 is not present, the side wall 38 of the main body acts in place of this, but if the protrusion 19.19 is present, a gap is created between the main body and the mold, and the separated mold is removed. When the mold is lowered for conveyance, damage to the inner surface of the mold due to contact between the side wall 38 of the main body and the mold and the mold falling can be prevented.

Reference numeral 20 denotes a temporary holding stand for the mold 4 in which the male die 2 is fitted into the female die 3, and an elevating stand 21 is arranged next to this temporary holding stand 20 for sending the mold 4 into the dividing process. ing. This elevating table 21 is supported by a piston rod 23 of a fluid pressure cylinder 22 such as an air cylinder, and moves up and down as the rod 23 expands and contracts.

Reference numeral 24 denotes a guide table that guides the mold 4 sent in as the lifting table 21 rises to the mounting section 25 located at the mold dividing position.

The mold mounting part 25 is a pair of claw-like objects 25a and 25b, and is attached to two parallel lift pars 26, 26, and the upper surface of the mold mounting part 25 is higher than the upper surface of the lift pars 26 and 26. . 27 is a spacer for a pair of claw-like objects 25a and 25b.

The loading portion 25 is attached to the bars 71 to 26, which are slidably attached to the elongated holes 2B and 28 of the side wall 38 of the main body of the separator 1. A pin 30 is inserted into a long hole 32 formed at one end of the lever 31.
It is loosely fitted. The other end 33 of the lever 31 is pivotally attached to a side wall 38 of the main body, and a piston rod 34 of a fluid pressure cylinder 39 such as an air cylinder is pivotally attached to an appropriate position on the arm of the lever 31.

Therefore, as shown by the solid line in FIG. 4, when the piston rod 34 is extended, the lever 31 swings downward and the pin 3
Lift par 26.2 to which mounting part 25 is attached via 0
6 goes down. On the other hand, as shown by the chain double-dashed line in FIG. The electromagnet 8 of the mold pulling means 9 can be pushed into the joint groove 5 of the female mold 3 from three directions, and the electromagnet 8 of the mold traction means 9 can be pushed into the joint groove 5 of the female mold 3
reaches a position where it can be adsorbed.

35.35 is a stopper for stopping the descending of the divided mold when the lift par 26.26 descends, and the bar 26.26 can pass on both sides of the stopper 35.35 when the lift par 26.26 descends. It is configured as follows.

In addition, this stopper 35.35 is provided at an angle, and after the lifter 26.26 descends and the divided molds ride on the stopper 35.35 and stop descending, the mold is unloaded. The structure is such that the divided molds can be sent out to a chute 36 for use.

In the above-mentioned mold separator 1, in order to adjust the horizontal position of the mold 4 in which the male mold 2 to be separated is fitted into the female mold 3, a temporary holding table 20, a lifting table 21, and a guide are used. Table 24 and mounting section 25
The spacer 27 has guide protrusions 37a and 37b, respectively.
, 37c, and 37d are formed, and these guide protrusions are slidably engaged with the joint groove 5 of the mold 4. Therefore, when dividing the mold, the wedge-shaped protrusion 6 of the mold dividing means 7 is inserted into the joint groove 5.
can be accurately pushed in the radial direction of the mold.

The male mold is fitted into the female mold by the mold force 1ift machine, and the molds that are stuck together by assimilation of the aluminum and plastic in the passage are separated as follows.

(a) Place the mold 4 with the male mold 2 fitted into the female mold 3 on the temporary stand 20, and move the mold 4 to the lifting table 21 with the joint groove 5 engaged with the guide protrusions 37a and 37b. do.

(b) The lifting table 21 is raised, and the mold 4 is raised in advance and sent to the required mounting section 25. At this time, since the guide protrusions 37G and 37d are engaged with the joint groove 5, the joint groove 5 is located on the extension line of the wedge-shaped protrusion 6 of the three mold dividing means 7, and the male mold 2 and The female molds 3 are placed on each of the pair of placement parts 25, respectively.

(C) Each piston rod 11 of the three mold dividing means 7 is advanced under low pressure to bring each wedge-shaped projection 6 into contact with the joint groove 5.

(d) After confirming that all of the wedge-shaped protrusions 6 of the three mold dividing means 7 are in contact with the joint groove, the mold pulling means 9
, 9 are advanced until they come into contact with the electromagnets 8, 8 or the outer wall 40, 40 of the mold 4.

At this time, if all of the wedge-shaped protrusions 6 are not in contact with the joint groove 5, when applying high pressure later and pushing the wedge-shaped protrusions 6 into the joint groove 5, the pressing force will be applied unevenly, causing the Types no longer split properly.

(e) Energize the electromagnet 8 by energizing it to generate electricity! After the i-stone 8 is adsorbed to the side surface of the mold 4, a retraction force is applied to the piston rod 17. As a result, a traction force is applied to the male mold 2 and the female mold 3 in the direction of separation.

At this time, the attraction force of the electromagnet must be greater than the pulling force of the piston rod 17.

(f) The piston rod 11 of the mold dividing means 7 is advanced under high pressure, and the wedge-shaped protrusion 6 is pushed into the joint groove 5 in the radial direction;
Split the mold.

(g) When the traction force of the mold dividing means exceeds the fixing force of the male mold 2 and female mold 3 due to the wedge-shaped protrusion 6 pushing and dividing, the male mold 2 and the ll■1 mold 3 are completely separated, and the electromagnet While adsorbing the ML type 2 and 1ltfl type 3 separated into 8 and 8, the piston rods 17 and 17 are moved so that the male type 2 and female type 3 are attached to the protrusions 19 and 19.
It moves backward until it comes into contact with...

At this time, since the upper surface of the lifter 26.26 is lower than the upper surface of the mounting part 25, the separated male mold 2 and female mold 3 do not come into contact with the lifter 26.26 and the protrusions 19.19...
...is carried to the location.

Therefore, the attraction force by the electromagnet 8 needs to be large enough to prevent the male mold 2 and the female mold 3 from falling due to gravity, and the attraction force must be large enough to prevent the male mold 2 and the female mold 3 from falling due to the protrusion. 19.1
In order to prevent the male mold 2 and female mold 3 from coming off from the electromagnet 8.8 when they collide with the electromagnet 8.9, the pulling force must be greater than the pulling force of the piston rods 17, 17.

(h) After the male mold 2 and the female mold 3 come into contact with the protrusions 19 and 19 and stop moving, the electromagnet is turned off and the male mold 2 and the female mold 3 are dropped onto the lift pars 26 and 26.

At this time, the piston rod 17.17 further retreats, and accordingly the electromagnet 8.8 also retreats to the rear of the protrusion 19.19..., and the residual magnetism of the electromagnets 8, 8 is transferred to the separated male type. 2 and female mold 3 from falling.

(1) Lift par of separated male mold 2 and female mold 3 26.26
Confirm that it has fallen upward (male mold 2 and female mold 3 are on lift par 26.
26, making a falling sound. ), then lower the lift par 26.26.

(j) When the lifters 26, 26 pass through both sides of the stopper 35.35 and descend below this, the separated male mold 2 and female mold 3 ride on the stopper 35.35 and the chute 36 is lowered. It will then be transported out.

(e) Functions and Effects As described above, the mold separator of the present invention radially pushes its wedge-shaped protrusion into the joint groove between the male and female molds to separate the male and female molds. Since it has a mold dividing means, it is possible to mechanically and efficiently divide the male mold and the female mold.

Furthermore, the mold separator of the present invention has a mold pulling means for pulling the male mold and the female mold in the separating direction, and the mold can be divided while being pulled in the separating direction, so that after the mold is divided, , the male and female molds are quickly separated, and the wedge-shaped protrusions do not damage the inner surfaces of the male and female molds, including the piston protrusions.

[Brief explanation of drawings]

Figure 1 shows one part of the mold of the present invention! III IN vertical cross-sectional view,
Fig. 2 is a plan view of the mold separator of the present invention, Fig. 3 is a sectional view taken along the line ■-■ in Fig. 1, Fig. 4 is an explanatory diagram of the elevating mechanism of the mold mounting section, and Fig. 5 is FIG. 6 is an explanatory diagram showing a state in which the wedge-shaped protrusion of the mold dividing means is in contact with the joint groove of the male and female molds, and FIG. 6 is an enlarged explanatory diagram when the mold is divided by the wedge-shaped protrusion. １・・・・・・・・・Mold separator, ２・・・・・・・・・
・Male type, 3...Female type, 4...
... Mold, 5 ... Seam groove, 6 ... Old wedge-shaped protrusion, 7,7 ... Mold dividing means,
8, 8... Electromagnet, 9, 9...
...Mold traction means, 10゜16...Fluid pressure cylinder, 11.17.1 old...Piston rod,
12.13... Slope, 15...
. . . Stepped portion, 25 . . . Placement portion, 40.
40.1 old...outside wall.

Claims (6)

[Claims] (1) Separate the male and female molds by pushing the wedge-shaped protrusion at the tip of the steel mold mounting part into the joint groove of the male and female molds in the radial direction. A mold separator comprising a plurality of mold dividing means and a pair of mold pulling means disposed on both sides of the mold in the axial direction to pull the male mold and the female mold in the separating direction. (2) The mold dividing means consists of a fluid pressure cylinder with a wedge-shaped protrusion attached to the tip of the piston rod, and the mold traction means consists of a fluid pressure cylinder with an electromagnet attached to the tip of the piston rod that attracts the outer wall of the mold. A mold separator according to claim (1) comprising: (3) The mold separator according to claim (1) or (2), wherein three mold dividing means are arranged around the joint groove. (4) A claim in which the three mold dividing means are arranged so that the extension lines of all the wedge-shaped protrusions in the pushing direction intersect at one point, and the intersecting angles of the adjacent extension lines form 120 degrees. The mold separator according to any one of items (1) to (3). (5) Any one of claims (1) to (4) in which the slope angle of the sloped surface on the male mold side of the wedge-shaped protrusion of the mold dividing means is smaller than the slope angle of the sloped surface on the female mold side. Mold separator described in Crab. (6) Any one of claims (1) to (5), wherein a stepped portion is formed at the base of the inclined surface of the wedge-shaped projection of the mold dividing means to prevent over-insertion of the wedge-shaped projection. Mold separator as described.