JPS6217151Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for attaching a product extrusion plate in a mold casting device.

Conventionally, when a product extrusion mechanism was built into the back side of the die base in a mold casting device, the product extrusion plate was fixed to the mounting plate with bolts, but the product extrusion plate was attached to the mounting plate by tightening or loosening the bolts. It takes time to install because it has to be removed from the die base, and it is difficult to work because the product extrusion plate is built into the back side of the die base and the surrounding area is heated by the heat of pouring metal. Bolts often come loose due to repeated steps, and especially when multiple stations are mounted on a turntable to form a station machine, installation and removal takes time, which significantly impedes productivity. Ta.

The present invention was completed with the aim of providing a mounting device for a product extrusion plate in a mold casting machine that solves the above-mentioned problems.Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

1 is a die plate on the fixed side, 2 is a mounting frame, two guide rods 3 are fixedly supported at both ends of the die plate 1 and the mounting frame 2, and a die plate on the movable side is mounted in the middle of the guide rods 3. 4 is slidably inserted through the support cylinder 5. Furthermore, a die base 7 with a mold model 6 is attached to the front surface of the die plate 1 on the fixed side and the die plate 4 on the movable side, and the die base 7 is inserted through the die plates 1 and 4, respectively, and the rear end thereof is attached. The die plates 1 and 4 are each attached to the die plates 1 and 4 by being gripped by a hook portion 9a of an L-shaped bolt 9 having a nut 8 screwed into the male thread portion of the die plate. Reference numeral 10 denotes an opening/closing cylinder attached to the back side of the mounting frame 2, and a movable die plate 4 is fixed to the tip of a piston rod 10a of the opening/closing cylinder 10 that penetrates through the mounting frame 2 and protrudes to the front side of the mounting frame 2. The movable die plate 4 can be slid along the guide rod 3 by the operation of the opening/closing cylinder 10. Reference numeral 11 denotes a product extrusion cylinder attached to the back side of the die plate 1 on the fixed side, which penetrates the die plate 1 and extrudes the die plate 1.
A mounting plate 12 is fixed to the tip of the piston rod 11a of the extrusion cylinder 11 that protrudes from the front. The mounting plate 12 is provided with an appropriate number of fixed clamp claws 18 formed into hook portions with inward tips on one side edge, that is, the lower edge, and on the other side edge, that is, the upper edge. Two stepped notches 14 consisting of a shallow notch 14a and a deep notch 14b are provided with a supporting portion 13 remaining between them, and within each stepped notch 14 is a base of a clamp claw 16 for attaching a product extrusion plate. The clamp claws 16 are slidably pivoted to the pivot shaft 15 which is horizontally supported by the stepped notches 14 so that the intermediate part is supported by the support part 13 by intervening with the clamp claws 16. When in the shallow notch 14a, the proximal edge abuts against the bottom of the shallow notch 14a to prevent pivoting, and the product extrusion plate 17 has this clamp claw 16 and the fixed clamp claw 18 on the mounting plate 12. However, when each clamp pawl 16 is moved and its base is in the deep notch 14b, the clamp pawl 16 is pivoted within the deep notch 14b, and the product extrusion plate is pushed out by both clamp pawls 16 and 18. 17 is released, and an ejector pin 24 is fixed to the front surface of the product ejector plate 17, the tip of which protrudes into the cavity surface of the mold model 6. A guide pin 19 is slidably inserted into a guide hole provided in the die plate 1 on the stationary side, and the tip of the guide pin 19 is fixed to the mounting plate 12. 21 is a spiral-shaped abutment member that is screwed into a screw hole 25 provided in the die plate 1 on the stationary side and moves forward and backward by rotation;
The member 21 is normally firmly fastened to the stationary die plate 1 by means of a lock nut 23.
A stopper pin 20 is attached to this abutting member 21.
The base end of the stopper pin 20 is inserted into the mounting plate 12 so as to be slidable therein, and the base end of the stopper pin 20 is a male threaded portion.
The stopper pin 2 is screwed onto the required location.
A male threaded portion is formed at the tip of 0, that is, a portion protruding from the rear end of the abutment member 21, and a double adjustment nut 22 is screwed into this male threaded portion. In other words, the push-out pin 24 presses the adjustment nut 22 against the member 21.
By abutting the rear surface of the mounting plate 12, excessive protrusion is regulated, and by abutting the rear surface of the mounting plate 12 with the front surface of the abutment member 21, excessive retraction is regulated.

With this configuration, the opening/closing cylinder 1
The mold clamping and mold opening are performed by the operation of 0,
The extrusion pin 24 moves forward and backward through the attachment plate 12, which moves forward and backward in response to the operation of the extrusion cylinder 11, to extrude the product, which is similar to conventional devices of this type, but the product extrusion plate 17 can be easily installed and removed. A feature of the present invention is that it can be carried out. That is, in a state where the product extrusion plate 17 as shown is held on the mounting plate 12, the opening/closing cylinder 10 is operated to open the mold, and the extrusion cylinder 11 is operated to retract the product extrusion plate 17, and then , use a wooden hammer or the like to cut the shallow notch 14a in the stepped notch 14.
while moving the clamping pawl 16 with its base therein along the pivot 15 to the deep notch 14b and pivoting the clamping pawl 16 to the rear of the mounting plate 12 to release the product ejection plate 17 from the mounting plate 12; Loosen the nut 8 of the L-shaped bolt 9, turn the hook portion 9a outward, and release the die base 7 from the die plate 1. Thereafter, the die base 7, the mold model 6, and the product extrusion plate 17 are lifted up using a lifting device such as a crane and taken out to the outside. After the die base 7 and the like are taken out in this way, the product extrusion plate 17 and the mold model 6 are removed from the die base 7 and replaced with a new mold model and product extrusion plate. Next, the die base 7 with the new mold model and product extrusion plate attached thereto was lowered along the mounting surface of the die plate 1 while being suspended again by a hanging device such as a crane, and the die base 7 was installed protruding from the front surface of the die plate 1. When the product extrusion plate 17 descends until it comes into contact with the abutting member, the product extrusion plate 17
2 and the fixed clamp claw 18, the product extrusion plate 17 is gripped at its lower end. Next, the hook portion 9a of the L-shaped bolt 9 is turned inward, and the nut 8 is tightened to fix the die base 7 to the die plate 1. Thereafter, the clamp claws 16 are pivoted inward and slid along the axis 15 from the deep notch 14b to the shallow notch 14a, so that the product extrusion plate 17 is gripped to the mounting plate 12 by the clamp claws 16. Similarly, the mold models on the movable side are replaced, and the replacement work of the mold models 6 and the product extrusion plate 17 is completed. Note that a slight gap will be formed between the product extrusion plate 17 held between the mounting plate 12 and both clamp claws 16 and 18, but this slight gap will not cause any functional problems. Of course.

As is clear from the description of the embodiments, the present invention provides a stepped notch consisting of a shallow notch and a deep notch on one side edge of the mounting plate, and a clamp claw is inserted into the stepped notch. The product extrusion plate is slidably attached to the mounting plate so that it can pivot when moved into a deep notch. This eliminates the trouble of tightening and loosening bolts when setting up the equipment, making the installation process easier and faster, improving productivity, and solving the problems of conventional equipment of this type. As such, it has extremely great practical value.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway plan view showing an embodiment of the present invention, and FIG. 2 is a partially cutaway perspective view of the main part. 1...Fixed side die plate, 12...Mounting plate, 14...Stepped notch, 14a...Shallow notch, 1
4b...deep notch, 15...pivot, 16...clamp claw, 18...fixed clamp claw.

Claims (1)

[Scope of utility model registration request] A suitable number of fixed clamp claws 18 formed as hook claws with tips facing inward are provided at the lower edge of the mounting plate 12, which is provided on the front surface of the die plate 1 so as to be able to move forward and backward, and a shallow notch is provided at the upper edge. A suitable number of stepped notches 14 consisting of a deep notch 14a and a deep notch 14b are provided, and a pivot shaft 15 is placed horizontally in the stepped notches 14, and a clamp claw 16 for attaching a product extrusion plate is attached to the pivot shaft 15 with its proximal end facing above. A product extrusion plate for a mold casting device, characterized in that it is slidably pivoted so that it is prevented from pivoting by abutting the bottom of the shallow notch 14a, but can pivot in the deep notch 14b. mounting device.