KR100940804B1 - Two-Step Slide Mold for Switch Lever - Google Patents

Abstract

The present invention relates to a mold used for injection or die casting, and more particularly, a fixed side mounting plate (2) having guide pins (4) at each corner thereof, and connected to one side of the fixed side mounting plate (2). A fixed part (12) having a first cam (8) and a second cam (10) of different lengths installed at a fixed distance from one side of the fixed side template (6) and the fixed side template (6); Movable side mounting plate 14 having guide grooves 16 so as to correspond to the guide pins in the corner portions, and movable side connected to one side of the movable side mounting plate 14 so as to correspond to the fixed side template 6. And a movable part 24 having a template 18 and a first slide core 20 and a second slide core 22 provided to correspond to the first cam 8 and the second cam 10. It relates to a two-stage slide mold to be made.

According to the present invention, since the slide core is sequentially operated by the cam, there is no malfunction due to a signal, and thus the safety of the work is improved, and since the hydraulic cylinder is not used, no peeling due to product contamination due to leakage of the hydraulic oil does not occur. Has the effect of improving.

Mold, Injection, Die Casting, Cam, Slide Core, Two Stage, Slide

Description

Two-Step Slide Mold for Switch Lever

The present invention relates to a two-stage slide mold used for injection or die casting.

A mold is a mold groove formed in a shape in a shape where two molds are in close contact with each other, and when the metal and / or plastic are melted and cooled in the mold groove, the metal and / or plastic is hardened into a shape of the molding groove, thereby forming a molding groove. To produce metal and / or plastic articles of the same shape as

Since molds can be produced in a large amount in a short time, the productivity is good and economical, so they are frequently used for products requiring mass production.

In general, the injection molding mold includes a mold body having a splittable upper core and a lower core in pairs, and the mold body is formed in a shape corresponding to the shape of the molded article and filled with a molten resin. And a runner for flowing the molten resin toward the mold and a gate for injecting the molten resin having passed through the runner into the cavity.

In addition, the die casting mold generally includes a mold body having a pair of upper cores and lower cores, and when the upper cores and the lower cores are combined, a cavity is formed between them. The cavity is connected to the gate, which passes through the flow path into the sleeve. In the sleeve, a plunger tip formed at the front end of the injection rod is accommodated for reciprocating motion, and a gate cylinder is formed at the lower core. In addition, the access member is housed in the gate cylinder to enable entry and retraction into the gate.

The mold is composed of a movable part and a fixed part for smooth production of the product. In the injection mold, the plastic raw material is melted at a high temperature and then filled between the respective molds by high pressure to produce a product along the inner shape of the mold.

In this case, when the product has an undercut structure, a separate slide core is installed in the mold to remove the undercut. That is, in order to remove the undercut of the injection molding, the mold is provided with a slide core moving at the same angle as the direction for taking out the undercut to produce an injection molding having an undercut.

Therefore, the undercut of the injection molding is easily removed through the slide core, and as needed, a plurality of the undercuts of the injection molding can be removed, thereby enabling mass production.

In general, the slide core for removing the undercut is driven by a hydraulic cylinder.

In the mold, when the mold is opened based on the parting line, the slide core is separated from the product by the hydraulic cylinder.

Another conventional mold has a structure in which a slide core is operated by an inclined pin, a slide pin mill pin is pushed to push out a product, and a hydraulic cylinder is installed for operation of the mill pin.

However, the above-described mold has a problem in that the shape of the product is attracted to the slide core, so that deformation of the shape itself occurs, and the peeling phenomenon of the product occurs due to leakage of hydraulic oil.

To solve this problem, various pedal switches have been developed. As an example, Korean Patent Laid-Open Publication No. 10-2006-0108916 discloses a main slide core as a first slide and a second slide core in the first slide core. A slide drive device is disclosed in which the slide core is selectively operated in accordance with the shape of an undercut.

The slide driving device drives the first and second slide cores with angular pins and springs, cam blocks and springs, or two angular pins formed at different angles.

However, the driving device made of the angular pin has a problem that does not move smoothly due to the core jam.

The present invention has been made to solve the above problems, and there is a technical problem to provide a two-stage slide mold which sequentially moves two slide cores mechanically using a cam instead of a hydraulic cylinder.

The present invention relates to a mold used for injection or die casting, and more particularly, a fixed side mounting plate having guide pins at corner portions, a fixed side template connected to one side of the fixed side mounting plate, and a side of the fixed side template. A fixing part having a first cam and a second cam of different lengths connected to and spaced apart from each other by a predetermined distance; Movable side mounting plate having a guide groove so as to correspond to the guide pin in the corner portion, Movable side template connected to one side of the movable side mounting plate and corresponding to the fixed side template, and the first cam and the second cam. It relates to a two-stage slide mold, characterized in that composed of a movable portion having a first slide core and a second slide core provided to be.

In the present invention, since the slide core is sequentially operated by the cam, there is no malfunction due to a signal, and thus the safety of the work is improved, and since the separation due to the oil contamination of the hydraulic oil does not occur due to the absence of the hydraulic cylinder, the productivity is improved. It is effective to let.

The present invention is a mold used for injection or die casting, a fixed side mounting plate having a guide pin in the corner portion, the fixed side template and a fixed distance from one side of the fixed side die plate connected to one side of the fixed side mounting plate A fixing part having a first cam and a second cam of different lengths connected to each other; Movable side mounting plate having a guide groove so as to correspond to the guide pin in the corner portion, Movable side template connected to one side of the movable side mounting plate and corresponding to the fixed side template, and the first cam and the second cam. And a movable part having a first slide core and a second slide core.

The fixing part according to the present invention comprises a fixed side mounting plate, a fixed side template, a first cam and a second cam.

The stationary side mounting plate according to the present invention provides a place where the stationary side template, the first cam, and the second cam are provided on one side of the lower side, and may be used as long as it can achieve such an object. It is preferable to use a fixed side mounting plate commonly used in the art.

The fixed side template according to the present invention is connected to one side of the lower side of the fixed side mounting plate to form an upper portion of a product such as a switch lever used for a direction indicator used in a vehicle or a wiper adjusting device, and a direction indicator used in a vehicle. Or it may have any shape as long as it has a groove having the same shape as the upper portion of the product, such as a switch lever used in the wiper adjusting device.

The first cam and the second cam according to the present invention are installed side by side connected to the lower side of the fixed side mounting plate to move the first and second slide cores, the fixed side mounting plate and made of 80 ^o to 110 ^o It is preferable that the first inclined portion and the second inclined portion are formed to be inclined at a predetermined angle from the end of the end.

The movable part according to the present invention is composed of a movable side mounting plate, a movable side template, and first and second slide cores.

The movable side mounting plate according to the present invention is to provide a place where the movable side template, the first and the second slide core is provided on one side of the upper side, and may be used as long as it can achieve this purpose. Preferably, it is preferable to use a movable side mounting plate commonly used in the art.

The movable side template according to the present invention is connected to one side of the upper side of the movable side mounting plate to form a lower portion of a product such as a switch lever used for a direction indicator used in a vehicle or a wiper adjusting device, and the direction indicator used in a vehicle. Or it may have any shape as long as it is provided with the groove of the same shape as the lower part of a product, such as a switch lever used for a wiper control apparatus.

The first and second slide cores according to the present invention are connected side by side to correspond to the first cam and the second cam on one side of the movable side mounting plate to move along the inclined surface of the second inclined portion of the first cam and the second cam. As such, any shape may be used as long as it can achieve such an object, but it is preferable to use a slide core that is commonly used in the art.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. However, the following description is only for illustrating the present invention in detail and is not intended to limit the scope of the present invention.

1 is a cross-sectional view of a two-stage slide mold according to the present invention, Figure 2 is a perspective view showing the bottom of the fixing part according to the present invention, Figure 3 is a perspective view of the movable part according to the present invention, Figure 4 is a two-stage slide according to the present invention 5 is a schematic view showing a closed state of the mold, Figure 5 is a schematic view showing the open state of the two-stage slide mold according to the present invention, Figure 6 is a schematic view showing a fully opened state of the two-stage slide mold according to the present invention. Shall be.

As shown in Figures 1 to 6, the two-stage slide mold according to the present invention is a mold used for injection or die casting, the fixed side mounting plate (2), each having a guide pin (4) at the corners, The fixed side plate 6 connected to one side of the fixed side mounting plate 2 and the first cam 8 and the second cam 10 of different lengths installed to be spaced apart by a predetermined distance from one side of the fixed side plate 6. Fixing portion 12 having a; Movable side mounting plate 14 having guide grooves 16 so as to correspond to the guide pins in the corner portions, and movable side connected to one side of the movable side mounting plate 14 so as to correspond to the fixed side template 6. And a movable part 24 having a template 18 and a first slide core 20 and a second slide core 22 provided to correspond to the first cam 8 and the second cam 10.

The fixing part 12 according to the present invention is composed of a fixed side mounting plate 2, a fixed side template 6, a first cam 8 and a second cam 10.

Here, the fixed side mounting plate 2 provides a place where the fixed side template 6, the first cam 8 and the second cam 10 are provided, and any shape can be achieved if such a purpose can be achieved. Although it may be made, it is preferable that it consists of a hexahedron shape, The fixed side template 6 is provided in the lower one side, When combined with the movable side mounting plate 14, The guide pin 4 which acts as a guide so that it may not shift. ) Is preferably provided at each corner.

The guide pin 6 according to the present invention may have any shape as long as it is made of a column shape, but preferably, it is made of a cylindrical shape, and any material may be used as long as it is a material that is not easily damaged by impact. However, it is preferable to use steel used in the art.

The fixed side template 8 according to the present invention is connected to one side of the lower side of the fixed side mounting plate 2 to provide a space for forming the product 26, the shape of which is a direction indicator used in a vehicle to be processed. Or a groove such as a direction indicator used in a vehicle or an upper portion of a product 26 such as a switch lever used in a wiper adjusting apparatus so as to form an upper portion of a product 26 such as a switch lever used in a wiper adjusting apparatus. It is preferable to use steel, which is not easily damaged by molten metal or plastic as the material, and preferably, steel commonly used in the art is used.

The first cam 8 and the second cam 10 according to the present invention move the first and second slide cores 20 and 22 forming the undercut of the product 26, and the fixed side mounting plate ( 2) the side-by-side formed on one side, place part the stationary-side mounting plate (2) and 80 ^o to 110 ^o the first inclined portion and the second inclined bent at an angle predetermined length formed from the first inclined portion terminating formed in a predetermined length by Although the cross section may have any shape based on the length direction, it is preferable to have a rectangular shape, and as the material, it is preferable to use a metal which is not easily worn, more preferably in the art. It is better to use steel. Here, the length of the first inclined portion of the first cam 8 and the second cam 10 may be different from each other, and preferably, the length of the second cam 10 is greater than the length of the first inclined portion of the first cam 8. ) of the first recommended binary inclined section length is longer recommended formed, a is the installation angle of the first inclined portion of the first cam 8 and the second cam 10 is inclined at 80 ^o to 110 ^o angle, preferably may be perpendicular to the second inclined portion is inclined at an angle of installation it is recommended gin 10 ^o to 40 ^o angle, preferably about 28 ^o binary inclined. In addition, the installation angles of the second inclined portions of the first cam 8 and the second cam 10 may be connected to be the same or different as necessary.

The movable part 24 which concerns on this invention is comprised from the movable side mounting plate 14, the movable side template 18, the 1st slide core 20, and the 2nd slide core 22. As shown in FIG.

Here, the movable side mounting plate 14 provides a place where the movable side template 18, the first slider core 20, and the second slide core 22 are provided, and any shape can be achieved if such an object can be achieved. It may be made of, but preferably made of a hexahedral shape, more preferably made of a shape corresponding to the fixed side mounting plate (2), when combined with the fixed side mounting plate (2) guide Guide grooves 16 are provided at each corner portion to correspond to the guide pins 4 so as to be coupled to the pins 4.

The movable side template 18 according to the present invention is connected to one side of the upper side of the movable side mounting plate 14 to provide a space for molding the product 26, and preferably corresponds to the fixed side template 6. It is preferable to be installed at the position to be connected, and the shape of the direction indicator used in the vehicle so as to form the lower portion of the product 26, such as the direction indicator used in the vehicle to be processed or the wiper adjusting device or the like. It is preferable to form a groove, such as a lower part of the product 26, such as a switch lever used for a wiper adjusting device, and the like, and as the material, it is preferable to use steel that is not easily damaged by molten metal or plastic. It is recommended to use steel commonly used in the art.

The first and second slide cores 20 and 22 according to the present invention are used when an undercut structure is required in a mold. The first cam 8 and the second slide core 20 are provided on one side of the movable side mounting plate 14. Corresponding to the cam 10, and is installed so as to be in contact with each other, the inner side of the first cam 8 and the second cam 10 is used if any groove is formed that can move through Although it is preferable to use a slide core commonly used in the art, it is preferable to use any material as long as it is a metal which is not easily damaged by molten metal or plastic heat. It is preferable to use a steel having high heat resistance and bending strength, and more preferably to use steel commonly used in the art.

Looking at the use of the two-stage slide mold according to the present invention having the above-described configuration is as follows.

First, the fixing part 12 is installed.

First, the fixed side template 6, which has a groove such as an upper part of a switch lever used for a direction indicator or a wiper adjusting device used in a vehicle, is fixed to the fixed side mounting plate 2 by being installed and fixed. (6) The first cam 8 and the second cam 10 are sequentially installed so as to be spaced a predetermined distance from one side.

Next, after the installation of the fixed part 12, the movable part 24 is installed.

First, the movable side template 18 having the same groove as the lower portion of the switch lever at a position corresponding to the fixed side template 6 is installed and fixed to the movable side mounting plate 14.

Next, the first and second slide cores 20 and 22 are installed.

Then, when the fixing part 12 and the movable part 24 are aligned with and coupled with the guide pin 4 and the guide groove 16, the first cam 8 and the second cam 10 are first and first. The first and second slide cores 20 and 22 are formed along the second slopes of the first cam 8 and the second cam 10 while being coupled to the grooves drilled in the two slide cores 20 and 22. , 18) to the side.

The molten metal or plastic is injected through the raw material injection hole (not shown) into the mold installed as described above, and filled into the molds 6 and 18 to form the product 26 along the shapes of the molds 6 and 18. do.

When the molded part 26 is completely hardened and the fixing part 12 and the movable part 24 are separated, the first and second slides are along the second inclined portions of the first cam 8 and the second cam 10. The first and second slide cores 20 and 22 are sequentially separated from the template 6 and 18 while escaping from the grooves of the cores 20 and 22, so that the product 26 can be taken out without being caught in the undercut.

At this time, the first inclined portion of the second cam 10 is formed to be shorter than the first inclined portion of the first cam 8 so that the second slide core 22 is first along the second inclined portion of the second cam 10. The first slide core 20 is separated along the second inclined portion of the first cam 8 at the point where the first inclined portion of the first cam 8 ends.

As the first and second slide cores 20 and 22 are separated in this manner, the product 26 is attracted to the slide cores 20 and 22 so that the deformation of the product 26 does not occur. Can be taken out.

As described above, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. Therefore, the above-described embodiments are to be understood in all respects as illustrative and not restrictive. The scope of the present invention is shown by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

1 is a cross-sectional view of a two-stage slide mold according to the present invention;

Figure 2 is a perspective view showing the bottom of the fixing part according to the present invention,

3 is a perspective view of a movable part according to the present invention;

4 is a schematic view showing a closed state of a two-stage slide mold according to the present invention;

5 is a schematic view showing an open state of a two-stage slide mold according to the present invention;

Figure 6 is a schematic view showing a fully open state of the two-stage slide mold according to the present invention.

<Description of the symbols for the main parts of the drawings>

2: fixed side mounting plate 4: guide pin

6: fixed side template 8: first cam

10: second cam 12: fixing part

14: movable side mounting plate 16: guide groove

18: movable side template 20: first slide core

22: second slide core 24: movable part

26: Product

Claims (4)

In molds used for injection or die casting, A fixed side mounting plate having guide pins at corners, a fixed side plate connected to one side of the fixed side mounting plate, and a first cam and a second cam of different lengths installed at a distance from the fixed side plate. Wherein the first cam and the second cam has a length of the first inclined portion of the second cam is longer than the length of the first inclined portion of the first cam, the first inclined portion is perpendicular to the fixed side mounting plate A second inclination part comprising: a fixing part including an inclination angle of 10 ° to 40 ° from an end of the first inclination part; Movable side mounting plate having a guide groove so as to correspond to the guide pin in each corner portion, and a movable portion having a first slide core and a second slide core provided on one side of the movable side mounting plate to correspond to the fixed side template Two-stage slide mold, characterized in that configured. The method of claim 1, The mold is a two-stage slide mold, characterized in that for manufacturing the switch lever used in the direction indicator or the wiper adjustment device used in the vehicle. delete delete

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