JPS635854Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a processing device for pipe bodies such as synthetic resin pipes.

In this type of pipe processing equipment for multi-product production, the molds are replaced according to the specifications of the pipes to be processed, so the mold 2 is attached to and removed from the mold mounting frame 1, as shown in Fig. 1. It has a mold attachment/detachment structure that allows it to be inserted and held. The mold mounting frame 1 is fixed with its lower part inserted into a box-shaped device support frame 3. 4 and 5 are an upper cylinder and a lower cylinder for mold clamping, respectively, and are mounted vertically on the mold mounting frame 1 with their pistons facing each other, and a mold plate fixing plate 1 is attached to the tip of each piston 4a and 5a.
a and 1b are attached. 1c is a core fixing plate provided at the rear of the mold mounting frame 1.

In this conventional mold attachment/detachment structure, the mold mounting frame 1
is fixed to the device support frame 3, so when installing the heavy mold 2, while lifting it with the chain block 6, fix the mold plate from the mold insertion opening in front of the mold mounting frame 1. After aligning by inserting it between the plates 1a and 1b and pushing it laterally toward the rear core fixing plate 1c, insert the upper and lower template plates of the mold 2 and the core 2a into the template fixing plate 1a, respectively. 1b and the core fixing plate 1c with bolts or the like in a removable manner. For this reason, mold 2 is moved to chain block 6.
Although it is suspended by a holder, it requires at least two workers to move it sideways manually, and the upper clamp section including the upper cylinder 4 of the mold mounting frame 1 gets in the way, making it difficult to carry out the installation work smoothly. The drawback was that it was sometimes dangerous.

This invention was made in order to eliminate the above-mentioned drawbacks of the conventional method.A part of the rear vertical frame of the mold mounting frame is pivotally supported on the device support frame, and the rear vertical frame of the mold mounting frame is By rotatably connecting the end of the piston of a screw-type electric cylinder and making it possible to tilt the mold mounting frame toward the rear vertical frame around the shaft support, the mold can be mounted more easily and safely than before. It is an object of the present invention to provide a tube processing device that can attach and detach the pipe body and produce processed products of excellent quality.

An embodiment of this invention will be described below based on the drawings.

In FIGS. 2 and 3, reference numeral 7 denotes a rotation shaft, which protrudes rearward at a position close to the device support frame 3 on the rear vertical frame 10a of the mold mounting frame 10, and is provided horizontally in the lateral direction. It is rotatably supported by a bearing 8 mounted on the support frame 3. A receiving projection 9 rotatably supports the rotating shaft 7 and is fixed to the rear vertical frame 10a of the mold mounting frame 10. Two bearings 8 and two receiving protrusions 9 are provided as a pair on the left and right, respectively. Mold mounting frame 1
0 has the same box-shaped frame structure as the mold mounting frame 1 shown in FIG. Reference numeral 11 denotes a stopper which extends upward from the front end of the device support frame 3, and is brought into contact with the front vertical frame 10b of the mold mounting frame 10. 12 is a motor-driven screw-type electric cylinder,
The cylinder base is rotatably supported by the rear vertical frame 3a of the device support frame 3, and the end of the piston 12a is rotatably supported by the bracket 13 attached to the lower end of the rear vertical frame 10a of the mold mounting frame 10. By being connected, they are arranged diagonally downward in the device support frame 3. The bracket 13 is attached to the rear vertical frame 10a of the mold mounting frame 10 so as to be located below the receiving projection 9. 12b indicates the motor of the electric cylinder 12. Reference numeral 14 denotes a stopper stand, which is disposed at the rear upper part of the device support frame 3, and is configured such that when the piston 12a of the electric cylinder 12 is extended, the upper part of the rear vertical frame 10a of the mold mounting frame 10 is placed on it. There is.

In the above configuration, when the piston 12a of the electric cylinder 12 is retracted, the mold mounting frame 1
0 is pulled downward, the mold mounting frame 10 moves the front vertical frame 10b to the stopper 11.
It comes into contact with the holder and stands up vertically, resulting in the state shown in Fig. 2. On the other hand, the piston 1 of the electric cylinder 12
When 2a is extended, the lower part of the mold mounting frame 10 is pushed up, so that the mold mounting frame 10 rotates rearward about the rotating shaft 7 and falls down. At this time, even if the load of the mold mounting frame 10 is applied to the piston 12a of the electric cylinder 12, since the electric cylinder 12 is a screw type, the piston 12a
As the mold mounting frame 10 gradually extends while being automatically regulated, the mold mounting frame 10 gradually falls down, and the upper part thereof is placed on the stopper stand 14, and becomes the horizontal state shown in FIG. 3, with its opening facing upward. becomes. Therefore, by lowering the mold 2 suspended by the chain block 6 straight down, the mold 2 passes between the upper and lower mold plate fixing plates 1a and 1b and is attached to the core fixing plate 1.
It is inserted up to c. Next, the core 2a of the mold 2 is bolted to the core fixing plate 1c, and the upper and lower cylinders 4 and 5 are operated and clamped to fix the upper and lower mold plates of the mold 2, respectively. Board 1a
After bolting to and 1b, the electric cylinder 12
is driven to raise the mold mounting frame 10. In the case of removing the mold 2, the mold mounting frame 10 is once tilted and the same procedure is performed.

The position of the rotating shaft 7 can be selected from various positions other than those in the above embodiments, and by selecting the center of gravity position of the mold mounting frame 10 including the mold 2, the mold mounting frame can be easily moved with extremely small force. It becomes possible to perform 10 tilting and standing movements. On the other hand, if the mounting position of the rotary shaft 7 is selected below the mold mounting frame 10 as in the embodiment, there is an advantage that the work is easier because the height when tilted is lower than in other cases.

As described above, according to this invention, a part of the rear vertical frame of the mold mounting frame is pivotally supported by the device support frame, and is rotatably connected to the end of the piston of the electric cylinder. Since the mold mounting frame is configured to be able to tilt toward the rear vertical frame around the shaft support, the mold can be attached and removed by simply operating it in the vertical direction, making the work easier than before and requiring only one person to do the work. This has the advantage of requiring only one person to attach and detach, increasing the safety of attachment and detachment work.

In addition, since the electric cylinder is a screw type, the extension and retraction of the piston is automatically and precisely regulated without being affected by the load of the mold mounting frame compared to when using a hydraulic cylinder. It is carried out gradually.

[Brief explanation of drawings]

FIG. 1 is a partially sectional side view of a conventional tube processing device, and FIGS. 2 and 3 are a side view and an operation explanatory diagram of the tube processing device according to this invention, respectively. 10... Mold mounting frame, 10a... Rear vertical frame, 10b... Front vertical frame, 2... Mold,
7...Rotating shaft, 8...Bearing, 9...Receiving protrusion,
12...Screw type electric cylinder, 12a...Piston, 13...Bracket. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] A box-shaped mold mounting frame having a front vertical frame and a rear vertical frame, into which a mold is attached/detached from the front vertical frame side, and a device support frame supporting the mounting frame. In the tube processing device, a part of the rear vertical frame of the mold mounting frame is rotatably supported by the device support frame and is rotatable with the end of the piston of the screw type electric cylinder. A pipe processing device characterized in that the mold mounting frames are connected to each other and can be tilted toward the rear frame around the shaft support.