WO2012141488A2

WO2012141488A2 - Integrated slide for a mould

Info

Publication number: WO2012141488A2
Application number: PCT/KR2012/002740
Authority: WO
Inventors: 서성철
Original assignee: Seo Seong Chul
Priority date: 2011-04-12
Filing date: 2012-04-12
Publication date: 2012-10-18
Also published as: WO2012141488A3; KR101079434B1

Abstract

The present invention relates to an integrated slide for a mould, whereby it is possible to reduce the processing and the time and cost entailed in mould manufacture, and at the same time it is possible to eliminate safety-related incidents by having a safe action, wherein the integrated slide comprises: a slide body adapted so as to be able to be inserted into a slide recess formed in a lower mould section comprised in the mould; a moving block which is joined to the slide body and secures an undercut core for forming an undercut, and which advances and retreats in the core direction; and an operating block which is positioned between the slide body and the rear of the moving block, and causes the moving block to advance and retreat under the action of an upper mould section which is positioned above the lower mould section.

Description

Integral Slide for Mold

The present invention relates to an integrated slide for a mold, and more particularly, to provide a slider that was dividedly mounted and operated on the upper and lower molds integrally to be stored in the lower mold, thereby reducing the process, time and cost of the mold manufacturing. The present invention relates to the provision of an improved slide for eliminating safety accidents by providing safe operation.

In general, injection molding is a method in which a thermoplastic or thermosetting plastic molding material is heated and melted in an injection molding machine, pressurized and injected into a cavity of an injection mold through a screw, and solidified or cured to complete the molding.

The molten material for injection molding as described above is injected into the cavity of the mold, which is the molding space of the molded product, through the injection space of the sprue, runner, and gate, and is molded. The connection portion of the gate and the molded article is separated, and the runner, the gate, and the molded article are separated and taken out.

As described above, when one or more of the molded products is required to be assembled, it has an undercut shape to form a protrusion for selecting one of the products to be assembled and to be combined with a hole for assembling, and the undercut The product can not be taken out by the holes or protrusions that make up the product.

It is the slider that allows the undercut shape to be taken out as described above, and this slide has a configuration as shown in FIG.

The slide 1 to which the prior art is applied is fixed to the slide core 4 and the upper mold 5 which are mounted on the lower mold 3 constituting the mold 2 and slide in the direction of the core for forming the product. The locking core 6 is configured to move the slide core 4 close to and away from the core by the up and down movement of the upper mold 5.

The locking core 6 is firmly fixed to the upper mold 5 by fixing means 7 such as a bolt, and protrudes the inclined pin 8 downwardly inclined downward in the direction of the slide core 4 to the slide core 4. The slide core 4 is slid and moved in the core direction while entering and exiting the formed inclined hole 9.

The slide core (4) is provided with a stop bearing (10) or a spring (11) for returning to the original position when the locking core (6) is raised, and the tail of the sliding core (4) and the locking core (6) On the left side in the drawing, an inclined plane joint 12 is formed to determine the position.

In the slide to which the prior art as described above is applied, as the upper mold is lowered with respect to the lower mold, the inclined pin is coupled with the inclined hole and the slide core is pushed in the core direction to form an undercut portion when forming the product. After this is completed, the inclined pin and the inclined hole are released as the upper mold is raised, and the undercut portion can be taken out while the slide core is returned to the original (initial) position by the stop bearing or the spring.

If the service life is prolonged during such operation, the sliding core may not be able to adhere to the initial position due to the inconsistency of the inclined pin and the inclined hole, the wear of the joint of the sliding core and the locking core, the wear of the stop bearing or the spring, and the decrease of elasticity Therefore, due to the collision of the inclined pin and the sliding core will cause damage to the inclined pin and the joint.

If such mold accidents occur frequently, it takes a lot of time and money to maintain and repair the mold, especially in the case of products with many undercuts, many mold slides are required in one mold. Frequently occurring problems arise.

In addition, since slides to which the prior art is applied are fixed to upper and lower molds constituting a mold, the shape and size of the slide core are determined according to the position and shape of the undercut, so that the slides may be previously mounted on the upper and lower molds. Since it is impossible to process the space to be processed, it is necessary to process all the mold-related parts at the same time as the decision of the product to be molded, so it takes a lot of time and money, and as a result, it is difficult to meet the tight delivery time.

It is necessary to secure a space for fixing the locking slide to the upper mold, but frequently overlaps with the cooling hole or base fixing bolt seat necessary for the upper mold, and in this case, the space allocation of the cooling hole has priority. Therefore, it is difficult to fix the locking core at the same position as the slide core mounted on the lower mold without interference, and there are various problems such as unnecessary expense and additional inconvenience of processing the upper mold.

In the present invention, to solve the problems described above, a slide body provided to be inserted into the slide groove formed in the lower mold constituting the mold, and the underbody coupled to the slide body to form an undercut It consists of a moving block for fixing the core moving forward and backward in the direction of the core and the moving block forward and backward by the upper mold located between the rear of the moving block and the slide body and located above the lower mold. In addition, it is possible to achieve the purpose of eliminating safety accidents by providing safe operability while reducing the process, time and cost of mold making.

The present invention provides a slide for mounting the slide in the lower mold to allow the slide to be approached and detached in the core direction by the lower or rising upper mold, it is possible to eliminate the damage or failure cause of the slide in the mold operation process Product safety can be increased by ensuring safe and smooth operation.

It does not require a separate space for mounting the slides on the upper mold, and the slides can be made in advance according to the size of the product, and can be used by processing only the undercut parts, which can greatly reduce the manufacturing process and cost of the mold. Shortening is possible.

Since the stroke adjustment of the slide can be guaranteed freely and stable operation, it is an invention having various effects, such as being able to continuously produce a uniform product even when used for a long time.

1 is an exploded perspective view showing an integrated slide for a mold to which the technique of the present invention is applied.

Figure 2 is a perspective view of the bonded state showing an integrated slide for a mold to which the technique of the present invention is applied.

3 is a cross-sectional view along the line A-A showing an integrated slide for a mold to which the technique of the present invention is applied.

4 is a cross-sectional view taken along line B-B showing an integrated slide for a mold to which the technique of the present invention is applied.

Figure 5 is an application state configuration showing an integrated slide for a mold to which the technique of the present invention is applied.

Figure 6 is a block diagram showing another example of an integrated slide for a mold to which the technique of the present invention is applied.

7 is a configuration diagram showing another example of an integrated slide for a mold to which the technique of the present invention is applied.

Figure 8 is a block diagram showing a slide for a mold to which the prior art is applied.

The integrated slide 100 for a mold to which the technique of the present invention is applied is a slide body 105 having a rough hexahedron shape provided to be inserted into a slide groove 103 formed in the lower mold 102 constituting the mold 101. And a moving block 107 which is coupled to the slide body 105 to fix the undercut core 106 to form an undercut, and moves forward and backward in the core direction, and the tail and the slide body of the moving block 107. It is composed of an operation block 109 for moving the moving block 107 forward and backward by the upper mold 108 positioned between the 105 and positioned above the lower mold 102.

The slide body 105 is coupled to the moving block 107 and the operation block 109 in the upper and front (core direction) and the bottom and then combined to form an opening 110 so that they do not interfere with the movement, Opening portion 100 formed on the bottom surface of the slide body 105 to prevent the separation of the moving block 107 and the operation block 109 coupled by intermittent to the closing plate 111.

The sliding body 112 is formed on both sides of the lower end of the opening 110 of the slide body 105 by combining with the moving rail 113 protruding from both sides of the lower end of the moving block 107. To slide in the forward and backward directions.

The rear side of the operation block 109 is coupled to the operation groove 114 formed in the up and down direction of the slide body 105 can move in the up and down direction by the lower and upward operation of the upper mold 108. The operating rails 115 are formed in the up and down directions to be coupled to each other.

Between the bottom of the operation block 109 and the closing plate 111 to raise the operation block 109 lowered by the upper mold 108 via the elastic means 117, the elastic means 117 ) Can be made of a material having elasticity, such as a spring or urethane rod, and is preferably embedded in the elastic means groove 118 at the bottom of the operation block 109 so as to prevent separation.

On both sides of the lower end of the operating rail 115 to form a locking projection 119 that protrudes more than the operating rail 115 to be connected to the locking projection 120 formed in the upper position of the operating groove 114, the upper mold 108 In order to prevent the operation block 109 from leaving the slide body 105 at the time of raising.

The moving block 107 and the sliding block 107 is formed in the sliding block 107 and the operation block 109 to be inclined to engage with each other inclined to form a sliding block (121,122) in accordance with the falling and rising of the operation block 109 slide body. Allow access to the front and rear of (105).

Of course, by varying the degree of inclination of the sliding parts (121, 122), the moving block 107 can vary the degree of entry and exit in the direction of the core it will be obvious that it can vary depending on the shape or size of the product to be molded.

The integrated slide 100 for the mold of the present invention is completed by coupling to the slide groove 103 formed in the lower mold 102 constituting the mold 101, the upper side in cooperation with the upper mold 108 as usual. When the mold 108 is lowered and connected to the lower mold 102, the product is molded, and when the upper mold 108 is raised, the molded product can be taken out.

As such, when the upper mold 108 is lowered, the moving block 107 constituting the slide 100 is drawn out of the slide body 105 to slide in the core direction to form an undercut portion when forming a product. After the molding is completed, when the upper mold 108 is raised, the moving block 107 can be retracted from the core to take out the undercut portion, so that the entire molded product can be taken out.

Looking at this in detail, the undercut core 106 is formed in the front of the moving block 107 coupled to the slide body 105 to form an undercut suitable for the shape of the product to be molded using bolts and fixing means.

In this state, the operation block 109 coupled with the moving block 107 is in a state of being raised by the elastic means 117, and the upper mold 108 is lowered to press the upper surface of the operation block 109, and the operation block ( 109 is lowered while overcoming the force of the elastic means (117).

When the operation block 109 descends, the operation block 109 coupled to the operation block 109 and the sliding block 107 by sliding

parts

121 and 122 formed in the uneven shape is pressed by the operation block 109 descending. As it is being pushed forward (core direction), it is naturally drawn out to the front of the slide body 105 is ready to form an undercut.

Then, when the molding of the product is completed, the upper mold 108 is raised, in this process the force holding the operation block 109 is removed, so close the bottom of the operation block 107 and the slide body 105 Elastic means 117 is installed between the closing plate 111 is to push the operation block 107 to maintain the initial state.

As such, the operation block 107 is retracted from the core while being retracted from the moving block 107 by being retracted from the core while being moved to the raised state, which is the initial position by the elastic means 117, so that the undercut portion is taken out. Allow the product to be taken out completely.

This is because it is engaged by sliding

parts

121 and 122 which are formed to be inclined in an uneven shape up and down on both sides of the operation block 109 and both sides of the moving block 107, so that the operation block 109 moves up to the moving block ( 107) is pulled backwards.

The moving block 107 and the operation block 109 does not leave the slide body 105 in the process of moving forward and backward of the slide body 105 or in the up and down direction of the slide body 105 That is, since the moving block 107 is coupled to the moving grooves 112 formed on both sides of the bottom of the slide body 105 by forming the moving rails 113 at the lower sides, the operation block 109 while moving forward and backward in a stable state. It is possible because it is coupled by the sliding parts (121, 122).

In addition, the operation block 109 does not leave the slide body 105 by the force pushing the elastic means 117 upwards, the operation rails 115 are formed on both sides of the rear of the operation block 109 to slide Since it is coupled to the operating groove 114 formed in the body 105, the locking projection 119 and the locking step (141) formed in the operating rail 115 and the operating groove 114 while ensuring the operability in the up and down direction ( It is possible because it is prevented by 120).

6 is a configuration diagram showing another example of the integrated slide for a mold to which the technique of the present invention is applied, and shows another example for fixing the undercut core 106 to the tip of the moving block 107.

In the example of the drawing, the fixing hole 131 is formed in the roughly b-shaped pedestal 130 which protrudes integrally at the lower end of the moving block 107, and the pedestal 130 is formed at the rear end of the undercut core 106. Form a roughly a-shaped hanging bar is formed integrally to be fastened by a fixing means such as a bolt.

Of course, although not illustrated in the drawings of the present invention, it will be obvious that the present invention may be implemented in various forms, such as combining the undercut core 106 and the moving block 107 using a slider and fixing means having a hermetic shape.

7 is a configuration diagram showing another example of an integrated slide for a mold to which the technique of the present invention is applied, and shows another example of the sliding

parts

121 and 122 formed on the moving block 107 and the operation block 109.

The sliding

parts

121 and 122 are formed in an uneven shape, but the sliding part 121 of the operation block 109 is formed into a recessed shape, and the sliding part 122 of the moving block 107 is an outer side of the moving block 107. It may be composed of a fixing pin to protrude in the direction of the sliding portion 121 of the operation block 109 to be fixed.

Of course, the sliding part 121 of the operation block 109 may be configured as a protruding fixing pin type, and the sliding part 122 of the moving block 107 may be configured in the opposite shape to form a recessed groove shape.

In addition, as shown in Figure 1 the sliding block (121, 122) direction of the operation block 109 and the moving block 107 is not inclined from the left side to the right side, and formed to be inclined from the right side to the left side in the opposite direction When the operation block 109 is pressed, the moving block 107 may be configured to be pulled, so that the opening and closing direction may be configured in the opposite direction.

In addition, a screw hole may be formed on the upper surface of the operation block 109 to facilitate the withdrawal of the slide inserted into the mold.

The present invention can be completed by coupling the integrated slide to the lower mold constituting the mold, and prepared in a state in which the integrated slide except for the undercut core is processed in advance without requiring separate processing on the upper mold. Because of this, the overall processing time and cost for mold completion can be greatly reduced, and only the previously completed slides can be traded independently.

In addition, the high degree of completeness (precision) of the slide enables stable and accurate operation, which prevents the decrease in production efficiency that may be caused by operation failure during the production of products using molds. It has advantages such as preventing accidents in advance.

Claims

A slide body provided to be inserted into a slide groove formed in a lower mold constituting a mold;

A moving block coupled to the slide body and fixed to an undercut core for forming an undercut, moving forward and backward in the core direction;

An integrated slide for a mold, comprising an operation block for moving the moving block forward and backward by an upper mold positioned between the rear end of the moving block and the slide body and positioned above the lower mold.
The method of claim 1;

Coupling the moving block and the operation block to the top, the front and the bottom of the slide body, and forming an opening to prevent the combined moving and operation block from moving;

Finishing with an intermittent plate to prevent separation of the moving block and the operation block coupled to the bottom of the slide body;

An elastic means is interposed between the bottom of the actuating block and the closing plate to raise the actuated block lowered by the upper mold;

The moving block and the operation block is formed inclined sliding parts coupled to each other inclined to form an integrated slide for the mold, characterized in that the moving block is moved in and out of the front and rear of the slide body in accordance with the falling and rising of the operation block.
The method of claim 1 or 2;

A moving block is slidably moved in the front and rear directions of the slide body by combining a moving groove and a moving rail formed at both sides of the lower end of the opening of the slide body and at both sides of the bottom of the moving block;

Coupling the operation grooves and the operation rails formed in the up and down directions on both sides of the slide body and the rear end of the operation block to enable the operation block to move in the up and down directions;

An integrated slide for a mold, characterized in that the operation block is formed so as not to be separated by the elastic means by forming a locking projection and a locking jaw at both sides of the lower end of the operation rail and the upper side of the operation groove.