JPH02246Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field to which the invention pertains] The present invention relates to a mold conveying device for an injection molding machine or the like.

[Prior art]

Conventional mold conveying devices for transporting molds into and out of injection molding machines generally rotate rollers using a chain and sprocket driven by an electric motor. This method has a complicated structure because it requires the motor to be mounted on the moving die plate side and incorporates a chain and sprocket, and the motor wiring is made to be flexible, resulting in high cost and poor operability.

[Purpose of invention]

The present invention eliminates these drawbacks, and its purpose is to create a mold conveying device for an injection molding machine that does not use chains, sprockets, or flexible wiring, has a simple structure, reduces costs, and is easy to operate. Our goal is to provide the following.

[Key points of the idea]

The mold conveyance device for an injection molding machine or the like according to the present invention includes a pedestal installed on the operation side or the non-operation side of the injection molding machine, etc., and a die plate that is rotatably attached on one side to the pedestal and fixed on the other side. A rod that advances and retreats toward the middle of the moving die plate,
An A cylinder that moves the rod forward and backward, a pair of B cylinders that are attached to the other side of the rod and move forward and backward toward the opposing surfaces of the fixed die plate and the movable die plate, and the fixed mold and the movable mold are fixed to each other. A pair of connecting plates that are integrally or separately attached to the mold base and have elongated holes for receiving the piston rod tips of the pair of B cylinders, and a plurality of rollers that are arranged in a straight line on the top surface of the gantry, the fixed die plate, and the opposing sides of the die plate. It is characterized by consisting of.

[Example of idea]

The present invention will be explained below with reference to FIGS. 1 to 3 showing one embodiment. One end of a rod 13 is rotatably attached to a pedestal 12 installed on the operation side or the opposite side of the injection molding machine 11, and the rod 13 is rotatably attached to the pedestal 12.
The cylinder 14 rotates to move forward and backward with respect to the injection molding machine 11 side, and movement at the time of approach is controlled by the limit switch 15.
regulated by. A pair of B cylinders 16 are formed near the other end of the rod 13 which is bent into an F-shape and whose tip is plate-shaped, with the piston rod 16A facing outward.
is installed.

When the tip of the piston rod 16A of the B cylinder 16 moves forward, it is integrally or fixedly attached to a base plate 21 attached to a fixed mold 19 and a movable mold 20, which are fixed when being carried into the fixed die plate 17 and movable die plate 18. The connecting plate 22 is inserted into a long hole 23 of the connecting plate 22. A plurality of rollers 24 for moving both molds 19 and 20 are mounted on a support 25 on the upper surface of the pedestal 12.
It is rotatably supported by. Similarly, a plurality of rollers 26 and 27 are rotatably attached to opposing sides of the fixed die plate 17 and the movable die plate 18, and these rollers 26 and 27 are at the same height as the roller 24 on the pedestal 12 side. .

The roller 26 on the fixed die plate side separates both molds 19 and 20 from the fixed die plate 17 during unloading, but at this time a collar 2 is attached to the roller 26 to prevent the base plate 21 from coming off the roller 26.
6A is provided. In addition, the injection molding machine 11 and the stand 1
2, and in order to connect rollers 26 and 27 on both die plates 17 and 18 side to roller 24 on pedestal 12 side, rollers 2 are provided on the end surfaces of both die plates 17 and 18 via supports 28.
6 and 27 are installed. Note that 30 is a tie bar.

Next, the operation of the embodiment described above will be explained. When carrying in both molds 19 and 20, base plate 21 is placed on rollers 24. At this time, the rod 13 is in the position shown in FIG.
The piston rod 16A is moved forward to connect the connecting plate 22.
Insert it into the long hole 23 of. Next, when the rod 13 is rotated by the A cylinder 14 from the solid line position in FIG. When the position is reached, limit switch 1
5 starts and stops. In this state, the fixed and movable molds 19 and 20 are fixed to the fixed die plate 17 and the movable die plate 18, respectively, and then the B cylinder 16 is moved back and removed from the base plate 21, and the rod 13 is moved by the A cylinder 14 as shown in FIG. When it is retreated to the solid line position, mold loading is completed. Note that when both molds 19 and 20 move to the right, the tip of the rod 13 moves in an arc shape, so the ideal moving speed is slow at the beginning and end and fast in the middle. become.

To carry out the mold, move the rod 13 through the A cylinder 14 to the imaginary line position in Fig. 1, and move the rod 13 through the B cylinder 1.
6 to engage the piston rod 16A and the base plate 21. Next, the A cylinder 14
Both molds 19 and 20 are connected via the rod 13.
The solid line position (rod 13 and base plate 21)
After moving the piston rod 16A to the base plate 21, the B cylinder 16 is moved back and the engagement between the piston rod 16A and the base plate 21 is released.

[Effect of idea]

As explained above, the mold conveyance device for an injection molding machine or the like according to the present invention has a pair of B cylinders which are provided at one end of the rod rotated by the A cylinder and move forward and backward toward the opposing surfaces of the fixed and movable die plates. The main components include a pair of connecting plates that are attached integrally or separately to a base plate that receives the piston rod of the B cylinder, and a plurality of rollers that transport the mold. Therefore, the mechanism is simple, the cost is low, and there are advantages such as good operability since only the A and B cylinders are operated and there is no electrical wiring.

[Brief explanation of the drawing]

The figures all show one embodiment of the present invention, and Fig. 1 is a side view, Fig. 2 is an enlarged view in the Z direction of Fig. 1, and Fig. 3 is an enlarged view in the Y direction of Fig. 1. . 11... Injection molding machine, 12... Frame, 13...
Rod, 14...A cylinder, 15...Limit switch, 16...B cylinder, 17...Fixed die plate, 18...Moving die plate, 19...
...Fixed mold, 20...Movable mold, 24, 26, 2
7... Laura.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A stand installed on the operation side or non-operation side of an injection molding machine, etc., and a die plate and a movable die plate that are rotatably attached on one side and fixed on the other side to the stand. A rod that advances and retreats toward the middle, and an A cylinder that advances and retreats the rod,
A pair of B cylinders attached to the other side of the rod and moving forward and backward toward opposing surfaces of the fixed die plate and the movable die plate, and a mold base to which the fixed mold and the movable mold are fixed, respectively, are integrated or integrated into the mold base. a pair of connecting plates that are separately attached and have elongated holes for receiving the ends of the piston rods of the pair of B cylinders, and a plurality of rollers that are arranged in a straight line on the top surface of the gantry and on opposite sides of the fixed die plate and the movable die plate. Mold conveyance equipment for injection molding machines, etc. 2. A mold conveying device for an injection molding machine or the like as set forth in claim 1 of the utility model registration claim, characterized in that the entry limit of the rod is controlled by a limit switch.