JPH074894Y2 - Mounting flange for filling machine for foamed plastic bead molding - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting machine for a foaming plastic bead molding filling machine and a mounting flange of a screw type foaming plastic bead molding filling machine in which a mounting position of a take-out pin can be changed. It is about. [0002] In the molding industry of foamed plastic beads, a raw material filling machine and a take-out pin are used in common for various molds, and the flanges are adjusted in position by the molds and attached. Therefore, the flange position is easy to adjust, there is no leakage of molding steam, water, compressed air, etc.
There is a demand for a ring or the like that is durable and has no mounting position deviation. Therefore, the taper narrowing type has been the mainstream. However, even in expanded polystyrene, low-magnification (3 to 15 times) and highly accurate ones, and expanded polyethylene and expanded polypropylene have been increasingly molded. The molding system is almost the same as Styrofoam, with air filling, steam heating, and water cooling. Therefore, the same type of Styrofoam is used for both the raw material filling machine and the take-out pin. However, in these molding processes, high air pressure during filling and high steam pressure during heating are required, and the pressure on the filling machine and take-out pin is also large, so that there is a gap in the conventional taper narrowing type mounting flange. Became. Therefore, recently, a screw type flange as shown in FIG. 1 is used. That is, the mounting flange 3a provided with the O-ring groove 9a for the O-ring 8a having the female screw 4a screwed with the male screw 2a of the filling machine 1a,
The filling machine 1a is screwed into the filling machine 1a inserted into the through hole 12a of the die 11a, and the filling machine 1a is attached and fixed to the die 11a through the O-ring 8a by screwing the flange mounting bolt 14a. It is like this. In addition, 13a is a detent double nut. However, although this conventional screw type flange has no deviation, it is very inconvenient to adjust the position by rotating the flange many times if the screw pitch is small. Also, since the male screw is exposed and exposed when it is removed and stored, it is easily damaged.
It was impossible to adjust it, and the sealability deteriorated and it was incomplete. Furthermore, the O-ring is easily damaged,
I also needed a double nut to stop the rotation. [0006] Conventionally, a screw type flange is most suitable as a mounting flange for preventing deviation, but there are various problems as described above. Therefore, the present invention has been made in order to solve the above problems, and is configured as follows. That is, the gist of the present invention is that the filling machine
The mounting screw to the molding machine has a larger pitch than a normal metric screw, etc., the screw thread tip is flat, and the screw bottom and screw shoulder have a smooth radius, and the screw on the side opposite to the die is <br / > with flange side becomes in a taper provided on the male thread direction O-ring groove of gold filling machine O-ring by screwing fastening flange mounting bolts plays a sealing function and the screw detent feature
A mounting flange of the foamed plastic beads molding filling machine comprising a feature to be fixed to the mold. Next, the present invention will be described in detail with reference to FIGS. First, 3 is a mounting flange provided with an O-ring groove 9 for an O-ring 8 having a female screw 4 which is screwed with a male screw 2 of the filling machine 1, and 13 is a boss portion thereof. And in this invention, the screw of the mounting part of the filling machine 1 to the molding machine is used.
Has a larger pitch than a normal metric thread, the thread tip 5 is flat, the screw bottom 6 and the screw shoulder 7 have a smooth radius, and the O-ring groove of the mounting flange 3 on the opposite side of the mold 11 is provided. 9 taper in male screw direction (axial direction) 1
0 is provided. Therefore, in this invention, first, the mounting flange 3 is screwed into a predetermined position of the filling machine 1. Then, the O-ring 8 is engaged and fitted in the O-ring groove 9. Then charge the above mounting flange 3 and the O-ring 8 is fitted respectively
The filling machine 1 is inserted into the through hole 12 of the mold 11. Then, the O-ring 8 is inserted in the mounting flange 3 and screwed into the mold 11, and is tightened by screwing, whereby the O-ring 8 moves in the radial direction as shown in FIG. 2 by the wedge action of the taper 10 of the O-ring groove 9. It deforms and is pressed toward the male screw 2 side. Therefore, the O-ring 8 has a sealing function and a screw-rotation preventing function, and fixes the filling machine 1 to the mold 11. EFFECTS OF THE INVENTION The mounting flange of the present invention has a large pitch and a large moving distance in one rotation, which facilitates the position adjustment of the flange and is useful, and the screw thread tip is flat. This has the effect of making it difficult to damage the male screw. Further, since the O-ring fulfills the sealing function and the screw stop function by the wedge action by screwing the flange mounting bolt, a perfect seal and a stable fixing are guaranteed, and the double nut can be eliminated. . If the screw is a multiple-thread (n-thread) screw such as a double-thread screw, the distance moved in the axial direction by one rotation, that is, the lead 1 is n times the pitch P, that is, 1 = nP, and therefore the flange A double-threaded screw is also effective in terms of position adjustment.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a vertical cross-sectional explanatory view of a main part of a conventional screw-type flange. FIG. 2 is a vertical cross-sectional view of the main part of the screw type flange of the present invention. FIG. 3 is an explanatory view showing a mounting state of a flange of the present invention to a mold. [Explanation of symbols] 1,1a Filling machine, etc. 2,2a Male screw 3,3a Mounting flange 4,4a Female screw 5 Thread tip 6 Screw bottom 7 Screw shoulder 8,8a O-ring 9,9a O-ring groove 10 Taper 11, 11a Mold 12, 12a Through hole 13 Boss 13a Double nut 14, 14a Flange mounting bolt

Claims (1)

[Claims for registration of utility model] The mounting screw of the filling machine to the molding machine has a larger pitch than ordinary metric screws, the tip of the screw thread is flat and the screw bottom is shallow, and the mounting is on the opposite side of the mold. by shallow O-ring groove of the flange side, charging the O-ring by screwing fastening flange mounting bolts plays a sealing function and the screw detent feature
A mounting flange for a filling machine for forming foamed plastic beads, characterized by fixing the filling machine to a mold.