JPS6082260A - Segmental die device and segmental die unit for forming die - Google Patents

Abstract

PURPOSE:To smooth opening of segmental dies by means of inclined pins by providing bearing rollers to the segmental dies, providing separately guide rails for guiding the revolution of the rollers and fitting the segmental dies to the rails in such a way that the dies can be freely slid by the revolution of the rollers. CONSTITUTION:Bearings rollers 10 are attached to the front and rear side faces of segmental dies A, A'. Guide rails B, B' cut with grooves 11 in conformity with the outside diameter of the rollers 10 are separately provided to an inside flank 13 and the rails B, B' are screwed 12 to the front and rear ends on top of a movable die plate 1 to be installed with the dies A, A'. The rollers 10 of the dies A, A' are freely rotatably fitted into the grooves 11 of the rails B, B' and the dies A, A' are freely slidably inserted beteen the rails B and B'. Inclined pins 7 fixed to a stationary die plate 5 are inserted into the inclined holes 4 of the dies A, A' and the pins 7 are actuated by the opening operation of the plate 1 to slide and open the dies A, A'. The opening of the segmental dies by the inclined pins is thus extremely smoothly accomplished without trouble.

Description

[Detailed Description of the Invention] 1) The internal molded product of the present invention can be applied to molded products with external threads, or molded products with flanges, grooves, etc. such as bobbins, bobbins, etc. In case 1, the cavity part of the mold is made into a split mold, and by sliding the split mold, the end cut is removed and the mold release is ejected.
In addition, an inclined pin (angular pin) is used to open the split mold, and the split mold is slid and opened using the inclined pin.

In the present invention CJ, the split mold is opened by this inclined pin (lj′j,
In the C type for elbows, a belling roller is attached to the split mold, and a guide rail is provided to guide the slide of the split mold with the roller, making opening the split mold with an inclined bin much easier than before. The present invention relates to a splitting device that can perform the splitting process smoothly and without any trouble, and the present invention also includes a bearing roller as a material component unit used in the construction of the device, and a block, a splitting material, and the splitting material. Regarding a split mold device unit that is assembled with a guide rail material for mold guidance, the unit is provided to mold manufacturers of this type, and the manufacturers individually
Specific details of each part such as the cavity part for the split mold material, the inclined hole, the screw hole for the guide rail, the nesting groove, etc. I
The split mold device of the present invention can be easily configured by performing a JO process and installing it in a molding die.

11), Prior Art A conventional molding die with a split mold is installed on the movable mold plate l or 11 on the flange plate (not shown), as an example is shown in Figure 2. The split molds a and a' close the split cavity portions 1111
The end portion is slidably fitted into the guide rail portion 3b formed on the movable mold plate 7 or the stripper plate, and the upper (fixed)
1! ++ Mold plate S or fixed number 1:] It is constructed by inserting a tilted pin 7 fixedly installed from below (ejector plate, etc.), and the tilted pin 7 is inserted from below (ejector plate, etc.). The provided inclined pins 7'' are moved by the inclined holes t of the split molds a and a' to open the cavity 2, and the molded product is released from the mold using an appropriate ejector pin or the like. , split mold a. used in this conventional mold. a
' is a thick rectangular plate made by simply dividing Nishinomiya's entire template into straight lines, and the divided molds a, a'
into the recess 3a for inserting the movable template l or the stripper plate, and press l15' at both ends thereof. The mating convex strip is slidably and tightly fitted into the guide rail portion 3b of the recessed portion 3a.

Therefore, the machining and polishing of the four parts 3a and the guide rail part 3b, which require particularly high precision, on the upper surface of the movable side mold plate 7, etc., will improve the precision of the fitting protrusions 9 on the side of the split molds a and a'. Along with machining, the machining process is extremely time-consuming, and because the cutting area is wide and the cutting volume is large, deformation often occurs in whole or in part due to cutting heat and cutting residual stress. It is not possible to obtain a high-precision slide fit with very small errors only with high machining accuracy; if the clearance is made too large, looseness will occur, and if the clearance is made as small as possible, the slide fit will become tight in whole or in part, making it difficult to open the mold. However, it is difficult to do this lightly with uniform force, and the problem is that the fitting part may be pried and the mold may be damaged. In the case of a long sword, the sliding state is extremely heavy (
It is difficult to open the mold easily with human manual effort), which is why it has been considered a problem in molding operations and in terms of the durability of the mold.

In addition, conventional molding molds equipped with the above-mentioned split molds are manufactured by mold manufacturers, etc., by processing the mold material for each mold to create a split mold material, and then forming a cavity part, Machining the inclined hole ψ, the fitting protrusion 9, etc. to provide the split molds a and a', and also machining the recess 3a for inserting the split mold, the guide rail part 3b, etc. on the material for the movable mold. A guide rail was provided on the side for installing the split mold, which was extremely inefficient.

1r: > , Detailed Description of the Invention The present invention has been made to solve the above-mentioned drawbacks, and it is extremely light (easy to use with one fingertip) by opening the split mold and placing it in a high-precision singing position. ), a small bearing roller is installed on the split mold side, a guide rail is separately installed to guide the rotation of the roller, and the rail is connected to the drive side mold. The above-mentioned split mold is slidably fitted and installed on the board or stripper plate idle rail by the rotation of a bell ring roller, and is made possible by the split mold device. As for the material parts that have 141 ridges, we used a split mold material with only bearing rollers installed and no detailed machining, and a guide rail material with grooves only cut but without detailed machining. It is provided as a splitting device unit for configuring the splitting device of the invention and supplied to consumers, thereby making it possible to simplify and streamline the production of molds equipped with the splitting device of the invention. be.

Below, the structure of the present invention will be explained with reference to its embodiments. (1) As shown in FIGS. In a molding die in which an inclined pin fixedly fixed at an angle is inserted into a side mold plate, etc., and the inclined pin slides the split mold to open the mold by the opening operation of the movable side mold, split molds A and A' are used. Small bearing rollers 10 are installed on the front and rear sides of the
, and on the other hand, the bearing roller 10 is installed on the same side 13.
Guide rail B%B with grooves cut to match the outer diameter of
' is provided separately, and the guide rails B and B' are used to install the split molds A and A'.
A plate (not shown) is fixed to the front and rear ends of the top surface with 12 screws, and the bearing rollers of the split molds A and A' are rotatably fitted into the fixed guide rails B and H'. The split molds A and A' are slidably installed between the guide rails B and B'.

Then, in the illustrated example, the inclined pin 7 fixedly installed on the stationary side template S is inserted into the inclined hole l of the split mold A%A', and by the mold opening operation of the movable side mold, the inclined pin 7 opens into the split mold A1. A'
``Do it and open the mold.

1 is a positioning nest for precisely installing guides 1/-rules B and B' on the upper surface of the movable mold plate 1, etc.;
Fit the nest lψ with a rectangular cross section ((b) in Figure 4) or diamond shape ((...)) to the skin cut on the guide rail B, 13' side and the movable template l side, and fasten it with -Cta. As a result, the installation of the guide knobs B1 and B' is carried out with immovable precision, and as a result, the first part of the slideable one ash insertion part of the split molds A and A' can be placed on the inner surface of the river surface 13. It can be done with extremely high precision and easily just by adjusting the precision research calendar.

Also, the trails B and B' are split type A.

Installation position i of the ring roller 10 on A'? r, l- Put them together and cut them at the lower end of the inner surface (Fig. 4 (b)), the center part ((c)), etc.

It is preferable that the guide rails B and B' be hardened to improve accuracy and wear resistance.

Recently, the bearing roller 10 has been
This series was developed for rolling bearings in rotating parts of M-equipment.
There are a wide variety of products on the market that have small errors (clearance between the inner and outer races and the ball), and the appropriate one is used. Incidentally, the bearing roller io used in the present invention has an error of about 2 to 5 microns.

(2) Also, as shown in Figure 7.8, in order to construct the splitting device of the present invention, the present invention includes
Bearing rollers 10 are placed on the front and rear sides of the rectangular plate material for split molds.
A pair of split mold materials AI, AI' that have not been subjected to other detailed processing, such as cavity portions, inclined holes ψ, etc., and a bellow ring of the split mold materials AI, AI'. Cut a groove/I on the inner surface to match the outer diameter of the roller lO~
A pair of guide rail materials B1 and B11 that have not been subjected to other detailed processing, such as screw holes for screws/2, fitting grooves for nests/lit, etc., are used in the split mold device configuration of the present invention. It was provided as a split mold unit for use.

This is because the shape and configuration of the cavity part of each mold is different, and even if the mold is a W-shaped mold that also has a split mold, the configuration of the mold itself may differ depending on the molded product. However, for example, even when the inclined pin is fixed, there are those that are fixed downward from the fixed side mounting plate or the fixed side mounting plate, and those that are fixed upward from the ejector plate. The thickness and length of the stripper plate differs depending on the mold, and there are various sizes, such as those in which the split mold is installed on the top surface of the movable side mold plate, and those in which the split mold is installed on the top surface of the stripper play I. Also, regarding the installation of the guide rail. However, since the installation positions of guide pins, support pins, return pins, etc. vary depending on the mold, it cannot be done uniformly (drilling a screw hole and screwing it in place), and it must be done according to the case of each mold. Therefore, similar to the so-called die set of conventional molding molds, semi-processing (the reference part is set as a precision part)
L, and a configuration unique to the present invention was added to it. ) The above-mentioned splitting device unit is supplied to a consumer as a raw material component unit, and the consumer carries out detailed processing to match the unit to the molding die intended for each user, thereby realizing the splitting device of the present invention. It is designed so that it can be constructed and installed as a molding device.

iv) In the above configuration and operation, the present invention has the following features:
(1) Regarding the split molds A and A', conventionally the fitting protrusion 9 that fits into the guide rail part 3b had to be formed by precision machining on the front and rear side parts, and the fc was not commercially available. It can be configured extremely simply by simply installing the rolling roller 10.

(2) Furthermore, conventionally, the guide rails B and B' are formed by cutting the entire upper surface of the movable side mold plate 1, etc. to form the split mold insertion recess 3a.
The present invention has the following disadvantages: Instead of forming the guide rails by cutting, guide rails B and B' are provided as separate parts.
Since this is screwed and fixed to the front and rear ends of the upper surface of the movable side template 7, etc., there is no need for conventional extensive cutting work, and it is simply placed precisely on the movable side template 1, etc. 16- It is sufficient to determine and fix with screws, and the precise positioning can be easily achieved by using the nest/<1' and polishing the inner surface 13, and the rest is as follows.
It is in contact with the bearing roller io, and therefore has an excellent feature that it can be easily performed with a fraction of the time compared to conventional guide rail formation.

(3) Since the split mold device is constructed by fitting the split molds A and A' of the present invention onto the guide rails B and B' of the present invention, the dimensions of both can be extremely precise. Due to the formed structure and the extremely light groove//inward rotation movement of the bearing roller 10, the split molds A and A' can be opened and closed very easily (to the extent that they can be easily slid with one finger). This makes it possible to completely eliminate the problems caused by the extremely slow sliding of conventional slides and troubles caused by prying sliding parts.
It has the advantage of never causing any damage, and can greatly contribute to improving the uniformity and performance of molding operations and extending the durability of molds.

Further, since the split molds A and A' can be slid easily as described above, there is an advantage that the number of inclined pinks is reduced compared to the conventional method, and only one is sufficient.

(4) Molding molds are often made to order, and the delivery date is limited, so the sooner the better. However, as described above, in the present invention, the manufacturing process of split molds, the manufacture and installation of guide rails, etc. This process can be carried out extremely simply, accurately and quickly, and has the advantage of significantly shortening delivery times compared to conventional methods.

(5) Furthermore, if the split mold device unit of the present invention is supplied to a consumer such as a mold manufacturer, the consumer will be able to use the various materials of the present unit according to the molding mold intended for each consumer. The splitting device of the present invention can be configured and installed in these molds extremely easily, quickly, and precisely by simply performing appropriate detailed processing and installing the molding device. It has characteristics that can produce various effects.

[Brief explanation of drawings]

Fig. 1 is a partial vertical cross-sectional view of an example of a conventional molding die provided with split molds, and Fig. 2 (a) is a cross-sectional view taken along the line I-1, 0
Figure 3 is a partial longitudinal sectional view of an embodiment of a molding die equipped with the splitting device of the present invention, and (a) is a sectional view taken along the line ■-■. (B) is a view of the closed mold, (A) of FIG. 4 is the third enlarged sectional view, Figure 5 is a plan view and front view of the split mold of the present invention, and Figure 6 is a view of the guide rail of the present invention. FIG. 7 is a plan view and a front view of the split mold material of the split mold device unit of the present invention, and FIG. 8 is an inside view and longitudinal sectional view of the guide rail material. Number, A, A'... split mold, AI, AI'... split mold material, a, a'... conventional split mold, B, B'... guide rail, 131, 131' ...Guide rail material, l...Movable side template, co...Cavity part, 3a
...Recessed part, 3b...Guide rail part, t...Slanted hole, S...Fixed ()1 type plate, A...Fixed side mounting plate, ?
... Inclined pin, ... Ejector bin, 9 ... Fitting protrusion, 10 ... Bearing roller of the present invention, // ...
・Groove, 12...Screw, 13...Inner Tsukuda! ii'ii. Hiro...Nested. Figure 3 Figure 8

Claims (1)

[Scope of Claims] l) Insert the inclined pins fixed on the fixed side mold plate into the respective inclined holes of the pair of split molds installed on the movable side mold plate, etc., and by the mold opening operation of the movable side. In a mold in which an inclined bin slides a split mold to open the mold, bearing rollers are installed on the front and rear sides of a pair of split molds, and a groove is formed on the inner surface to match the outer diameter of the bearing roller. A guide rail having been cut therein is fixed with screws to the front and rear ends of the upper surface of the movable mold plate on which the split mold is installed, and the bearing roller of the split mold is rotatably fitted into the groove of the guide rail. , a mold splitting device for molding molds, in which a split mold is slidably installed between guide rails. 2) Install the bear 1j a-ra on the front and rear sides of the split mold,
On the other hand, a guide rail with a groove cut on the inner surface according to the outer diameter of the bearing roller is fixed with screws to the front and rear ends of the upper surface of the movable side mold plate on which the split mold is installed, and the groove of the guide rail is fixed. The split molded ring roller is rotatably rotated to 11χ.
Together, a pair of split mold materials with bearing rollers installed on the front and rear sides, which are used to construct a split mold device for a molding die in which the split molds are slidably reinstalled between the guide rails, are used. A mold splitting device unit for molding molds that consists of a pair of guide rail materials with grooves cut on the inner surface to match the outer diameter of the bearing rollers of the materials.