KR101597222B1 - Pocket slide type mold block and mold apparatus having the same - Google Patents

Abstract

Disclosed is a pocket slide type mold block capable of reducing the defects of an injection molded product and improving productivity, and a mold apparatus including the same. Such a mold apparatus includes a stationary mold, a mold block, and a movable mold. The stationary mold includes an opening extending from one end to the other end. The mold block may be slidably inserted into the opening of the stationary mold by being pushed toward the other end from the one end and being slidably separated from the opening of the stationary mold by pulling in the direction of the one end from the other end, And at least one cavity along the axis. The movable mold is configured to be able to move up and down, and is formed so that the mold block can be squeezed from above.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pocket slide type mold block,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mold block and a mold apparatus including the mold block, and more particularly, to a mold block used in injection molding and a mold apparatus including the same.

Currently, smartphones are widely used and used. In such a smartphone, an antenna radiator is provided to transmit and receive an external electromagnetic signal through the antenna radiator. Such an antenna radiator is generally fastened to the smartphone case through an injection molding method.

On the other hand, the injection molding method refers to a manufacturing method in which molten synthetic resin or metal is injected between a stationary mold in which a cavity is formed and a movable mold in which a cavity is formed, and cooled to obtain a cavity-shaped molded article.

FIG. 1 is a front perspective view of an injection molded article including an antenna radiator as part of a part used in a smartphone, and FIG. 2 is a rear perspective view of the injection molded body shown in FIG.

1 and 2, a bolt fastener 30 made of a metal material such as a nut for fastening an antenna radiator 10 and a bolt is coupled to the plastic material 20.

The antenna radiator 10 receives an external electromagnetic signal and a printed circuit board or the like on which various electronic components are arranged through the bolt fastener 30 is coupled to the injection molded body 30. For the sake of convenience, only one bolt fastener 30 is shown.

In order to form the molded article 20 made of plastic, the antenna radiator 10 and the bolt fastening tool 30 are disposed in the cavity of the stationary mold, the movable mold is lowered, and the molten plastic is injected into the cavity And cooled to produce the extrudate of Figs. 1 and 2.

However, when the number of the antenna radiator 10 and the bolt fastener 30 is increased, it takes a long time for the operator to place the antenna radiator 10 and the bolt fastener 30 in the cavity, When the size of the sphere 30 is small, the working time is further increased.

If the antenna radiating element 10 and the bolt fastening tool 30 are partially missing or the antenna radiating element 10 and the bolt fastening tool 30 are not properly positioned, the produced product is treated as defective, Further, when the antenna radiator 10 and the bolt fastening hole 30 are not disposed in a proper position and are caught between the stationary mold and the movable mold, a serious problem such as flowing out of the molten resin occurs, And it takes a lot of time, resulting in a problem that productivity is lowered.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a mold block of a pocket slide type capable of reducing the defects of an injection molding and improving productivity, and a mold apparatus including the same.

To solve these problems, a mold apparatus according to an exemplary embodiment of the present invention includes a stationary mold, a mold block, and a movable mold. The stationary mold includes an opening extending from one end to the other end. The mold block may be slid from the one end of the stationary mold by sliding in the direction of the other end from the one end to the opening of the stationary mold and pulling in the direction of the one end from the other end of the mold block, And at least one cavity according to the shape. The movable mold is configured to be able to move up and down, and is formed so that the mold block can be squeezed from above.

For example, the mold block may include an insert support configured to contact an object to be inserted in the injection object, to place the object in the cavity, and to move downward by the movable mold when the movable mold is lowered .

The mold block may include a transfer handle formed on a side of the mold block so that an operator can hold the mold block when the mold block is drawn into or withdrawn from the opening.

The mold block may include a transfer wheel for facilitating movement of the mold block when the mold block moves in a plane.

At this time, the transfer wheel may be inserted into the mold block when the movable mold is lowered and the mold block is closely contacted.

In addition, the conveyance wheel may be formed to be movable in any direction on the XY plane.

Meanwhile, the movable mold may include a tapered protrusion protruding downward, and the mold block may include a guide hole having a shape corresponding to the protrusion.

The stationary mold may include a contact sensor formed at an end of the opening and sensing whether the mold block is drawn to an end of the opening.

According to an exemplary embodiment of the present invention, a mold block may be fastened to or separated from a stationary mold, and includes at least one cavity according to the shape of the injection mold. The mold block contacts an object inserted in the injection mold, And an insert support configured to move downward by the movable mold when the movable mold descends.

For example, the mold block may include an insert support configured to contact an object to be inserted in the injection object, to place the object in the cavity, and to move downward by the movable mold when the movable mold is lowered .

The mold block may include a transfer handle formed on a side of the mold block so that an operator can hold the mold block when the mold block is drawn into or withdrawn from the opening.

The mold block may include a transfer wheel for facilitating movement of the mold block when the mold block moves in a plane.

At this time, the transfer wheel may be inserted into the mold block when the movable mold is lowered and the mold block is closely contacted.

In addition, the conveyance wheel may be formed to be movable in any direction on the XY plane.

According to the mold block and the mold apparatus of the present invention, it is possible to join the antenna radiator and the bolt fastener in a divided manner by a plurality of workers while moving the mold block, thereby improving the productivity, It is possible to check the error of the operation of the apparatus and prevent the failure.

The mold block may further include an insert support unit configured to contact an object to be inserted in the injection object, to place the object in the cavity, and to move downward by the movable mold when the movable mold is lowered It is possible to prevent the antenna radiator from extending to the outside of the cavity and causing defects.

In addition, when the mold block includes the transfer handle formed on the side of the mold block, the operator can easily insert / withdraw the mold block into the opening, and clarify the directionality, .

In addition, when the mold block includes a conveying wheel that facilitates the movement of the mold block when the mold block moves in a plane, the worker can easily move the mold block without any effort on the table .

In addition, when the movable mold is lowered and the mold block is closely contacted, when the transfer wheel is formed so as to be drawn into the mold block, breakage of the transfer wheel can be prevented.

In addition, when the conveying wheel is formed so as to be movable in any direction on the XY plane, the ease of operation of the operator can be further improved.

When the movable mold includes a guide hole projecting downwardly and having a tapered protrusion and the mold block has a shape corresponding to the protrusion, the tapered portion of the protrusion causes the mold block to be precise The mold block is positioned in the correct position.

The fixed mold may include a contact sensor formed at an end of the opening to sense whether the mold block is drawn to an end of the opening, and when the mold block is inserted into a large range error range , The problem can be solved through the contact sensor.

1 is a front perspective view of an injection molded article including an antenna radiator as part of a component used in a smart phone.
2 is a rear perspective view of the injection molding shown in Fig.
3 is a perspective view schematically showing a mold apparatus according to an exemplary embodiment of the present invention.
FIG. 4 is a perspective view showing a state before the stationary mold and the mold block of FIG. 3 are coupled.
5 is a perspective view showing the state after the stationary mold and the mold block of FIG. 3 are combined.
FIG. 6 is a schematic cross-sectional view showing a state in which the movable mold and the mold block of FIG. 3 are separated.
FIG. 7 is a schematic cross-sectional view illustrating that the mold block is transferred to the correct position in the process of coupling the movable mold and the mold block separated in FIG.
8 is a perspective view illustrating a mold apparatus according to an exemplary embodiment of the present invention.
9 is a perspective view showing a mold block in detail according to an exemplary embodiment of the present invention.
FIG. 10 is a plan view showing the moisture support shown in FIG. 9 with the insert support shown in FIG. 1 supporting the radiator.
11 is a schematic cross-sectional view for explaining the operation of the insert support of Figs. 9 and 10. Fig.
12 is a rear view showing the back surface of the mold block.
13 is a cross-sectional view schematically showing the delivery wheel shown.
14 is a perspective view showing the roller housing shown in Fig.
15 is a plan view showing a state in which a work is being performed with the mold apparatus according to the present invention installed.

The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures may be exaggerated to illustrate the present invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprising" or "having ", and the like, are intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof. In addition, A and B are 'connected' and 'coupled', meaning that A and B are directly connected or combined, and other component C is included between A and B, and A and B are connected or combined .

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

FIG. 3 is a perspective view schematically showing a mold apparatus according to an exemplary embodiment of the present invention, FIG. 4 is a perspective view showing a state before the stationary mold and the mold block of FIG. 3 are combined, Is a perspective view showing a state after a fixed mold and a mold block of the mold are combined.

3 to 5, a mold apparatus 100 according to an exemplary embodiment of the present invention includes a stationary mold 120, a mold block 200, and a movable mold 110. The stationary mold 120, the mold block 200, and the movable mold 110 may be formed of a metal material such as a tool tool steel.

The stationary mold 120 includes an opening OP extending from one end to the other end. For example, the stationary mold 120 may be formed in a rectangular parallelepiped shape, and the opening OP may extend linearly from one side. The upper surface of the mold block 200 is exposed when the mold block 200 is fastened.

The mold block 200 may also be formed in a rectangular parallelepiped shape. The mold block 200 is slid from the one end toward the other end and is slidably engaged with the opening OP of the stationary mold 120 and pulled from the other end toward the one end, The opening OP can be slidably separated from the opening OP. When the mold block 200 is fastened to the stationary mold 120 through the opening OP, the upper surface of the stationary mold 120 and the upper surface of the mold block 200 may be fastened have.

The mold block 200 includes at least one cavity 210 according to the shape of the injection molding. The shape of the cavity 210 may have various shapes depending on the article to be manufactured.

The movable mold 110 is configured to be able to move upward or downward and to press the mold block 200 from above. When the molten plastic is injected into the cavity 210 and injected through the resin injection port 111 while the movable mold 110 is in contact with the mold block 200, 20).

According to the mold block 200 and the mold apparatus 100 of the present invention, while the mold block 200 is being moved, a plurality of workers are required to separately perform the operation of the antenna radiator 10 and the bolt fastener It is possible to improve the productivity, and also it is possible to check the error of the work of the previous worker by the worker and to prevent the failure. This effect is described in more detail with reference to FIG.

FIG. 6 is a schematic cross-sectional view illustrating a state in which the movable mold and the mold block are separated from each other in FIG. 3, and FIG. 7 is a cross-sectional view And is a schematic cross-sectional view for explaining.

Referring to FIGS. 6 and 7, the movable mold 110 includes a protrusion 112. The protrusion 112 protrudes downward from the lower surface of the movable mold 110. The protruding portion 112 is formed such that the lower end thereof is tapered.

The mold block 200 may include a guide hole 201 having a shape corresponding to the protrusion 112. Therefore, when the movable mold 110 descends and presses the mold block 200, the protrusion 112 is inserted into the guide hole 201.

Referring to FIG. 5 again, it may happen that the mold block 200 is not moved to the end of the opening by the operator. However, when the lower end of the protrusion 112 is formed to taper, as shown in FIG. 7, The movable mold 110 can be lowered along the direction A even if the mold block 200 does not completely coincide with the guide hole 201. Further, when the movable mold 110 is lowered along the direction A, the mold block 200 is moved along the B direction by the tapered portion of the protrusion, Position.

8 is a perspective view illustrating a mold apparatus according to an exemplary embodiment of the present invention.

Referring to FIG. 8, the mold apparatus 100 according to an embodiment of the present invention may include a touch sensor 121. The contact sensor 121 may be attached to the opening end of the stationary mold 120, for example.

The contact sensor 121 senses whether the mold block 200 is drawn to the end of the opening and transmits the sensing result to the control unit (not shown) of the mold apparatus 100. The control unit, in cooperation with the injector system, It is possible to control to prevent the mold block 200 from descending.

In the case of the protrusion 112 and the guide hole 201 shown in Figs. 6 to 7, when the end of the tapered protrusion 112 is a fine range error within the area of the guide hole 201, However, when the end of the tapered protrusion 112 has a large range error out of the area of the guide hole 201, a problem may occur when the movable mold 110 is lowered.

Therefore, in the case of such a large range error, the problem can be solved through the contact sensor 121.

FIG. 9 is a perspective view showing in detail a mold block according to an exemplary embodiment of the present invention, and FIG. 10 is a view showing a state in which the insert support shown in FIG. 9 supports the radiator shown in FIG. 11 is a schematic cross-sectional view for explaining the operation of the insert support of Figs. 9 and 10. Fig.

Referring to FIGS. 1, 2, and 9-11, the mold block 200 contacts an object to be inserted into the injection mold 20, places the object in the cavity 210, And an insert support 230 configured to move downwardly by the movable mold 110 when the mold 110 descends.

The insert supports 230 are disposed outside the cavities 210 and place the inserts inserted into the cavities 210 into the cavities 210. In addition, the insert support 230 is configured to be lowered and an elastic member 201, e.g., a spring, pushes up the insert support 230 upwards to normally protrude and support the insert, When the movable mold 110 descends to press the insert support 230, the insert support 230 is also moved downward.

For example, the insert support 230 may support the antenna radiator 10 as shown in Figs. 1 and 10. The insert support 230 supports the antenna radiator 10 such that the antenna radiator 10 is disposed inside the cavity 210.

11, when the movable mold 110 is lowered, the insert support 230 is pushed by the movable mold 110 and descends to the lower portion. At this time, the antenna radiator is still disposed in the cavity 210 by the movable mold 110. Particularly, as shown in FIGS. 1 and 10, when the antenna radiating element 10 has a round shape, a part of the antenna radiating element 10 may escape to the outside of the cavity 210 to cause a failure, 110 and the mold block 200 are not completely in close contact with each other, and the molten resin leaks into the gap.

However, in the embodiment of the present invention, the insert support 230 pushes the antenna radiator into the cavity 210 to prevent such a problem.

In this case, the size of the mold block 200 may be enlarged. In this case, the cavity 210 (210) , The size problem may be further increased. Therefore, it is preferable that the insert support 230 is configured to move up and down.

Fig. 12 is a rear view showing the back surface of the mold block, Fig. 13 is a cross-sectional view schematically showing the conveying wheel shown in Fig. 14, and Fig. 14 is a perspective view showing the roller housing shown in Fig.

12 to 14, the mold block 200 may include a conveying wheel 240 that facilitates movement of the mold block 200 when the mold block 200 moves in a plane. have. The conveying wheel 240 may be formed to be movable in any direction on the XY plane.

At this time, the feed wheel 240 can be inserted into the mold block 200 when the movable mold moves down and the mold block 200 is closely contacted.

The conveying wheel 240 may include a wheel 241, a lower plate 242, a body 245, an upper plate 246, a roller housing 243, and a housing 244.

The wheel 241 is connected to the lower side of the lower plate 242. The wheel may be formed, for example, in a cylindrical shape. It is preferable that the wheel 241 is biased to the side of the lower plate 242 rather than the center of the lower plate 242. In the case where the lower plate 242 is formed so as to be offset to the side of the lower plate 242, the rotation of the lower plate 242 can be facilitated along the direction in which the operator pushes.

The body portion 245 may have a cylindrical shape protruding from the center of the lower plate 242.

The roller housing 243 is a kind of bearing. The roller housing 243 has a plurality of cylindrical rollers 243a formed therein and operates as a bearing. The body 245 passes through the roller housing 243 and is fastened to the upper plate 246.

An elastic body may be disposed inside the housing 244 to press the housing 244 and the upper plate 246.

As described above, the mold block 200 includes a conveying wheel 240 that facilitates the movement of the mold block 200 when the mold block moves in a plane (described in detail with reference to FIG. 15) The worker can work on the table while easily transferring the mold block 200 without effort.

In addition, when the conveying wheel 240 is formed to be movable in any direction on the XY plane, the ease of operation of the operator can be further improved.

When the movable wheel 110 is lowered and the mold block 200 is closely contacted and the transfer wheel 240 is inserted into the mold block 200, It is possible to prevent breakage of the battery. That is, the movable mold 110 presses the mold block 200 with a great pressure. If the transfer wheel 240 is not pulled, the transfer wheel receives all the pressure and breakage occurs. The transfer wheel 240 Can be prevented from damaging the feed wheel 240 when the feed wheel 240 is inserted into the mold block 200.

15 is a plan view showing a state in which a work is being performed with the mold apparatus according to the present invention installed.

1, 2, and 15, a table is disposed on one side of the mold apparatus 100 according to the present invention, and a plurality of workers are not wrapped around the table.

For example, in the mold block 200, the operator 4 inserts the first bolt fastener 30 into the mold block 200, the worker 3 inserts the second bolt fastener 30 into the mold block 200, The antenna radiator 10 is inserted into the mold block 200, and the operator 1 slides the mold block into the mold apparatus 100. The worker 5 feeds the bolt fastener and the antenna radiator 10 to the worker 2 to the worker 4, and loads the workpiece 1 taken out by the worker 1 to be stored.

As described above, according to the mold block and the mold apparatus of the present invention, the antenna radiator and the bolt fastener can be joined by a plurality of workers by a plurality of workers while moving the mold block, thereby improving the productivity, It is possible to check the error of the work of the previous worker, thereby preventing the failure.

While the present invention has been described in connection with what is presently considered to be practical and exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: antenna radiator 11: radiator exposure unit
20: Injection article 30: Bolt fastener
100: mold apparatus 110: movable mold
111: Resin inlet 112:
120: stationary mold 121: contact sensor
200: mold block 201: elastic member
210: cavity 220: transport handle
230: insert support 240: transfer wheel
241: Wheel 242: Lower plate
243: Roller housing 244: Fastening housing
245: body portion 246: upper plate

Claims (13)

A fixed mold including an opening extending from one end to the other end;
The slide member may be slidably coupled to the opening of the stationary mold by being pushed in the direction of the other end from the one end and being slidably separated from the opening of the stationary mold by pulling in the direction of the one end from the other end, A mold block including a cavity of the mold; And
And a movable mold formed to be able to press the mold block upward,
In the mold block,
And an insert support configured to contact an object to be inserted into the injection object to place the object in the cavity and to move downward by the movable mold when the movable mold is lowered, Device.
delete The method according to claim 1,
Wherein the mold block includes a transfer handle formed on a side of the mold block so that an operator can hold the mold block when the mold block is drawn into or withdrawn from the opening.
The method according to claim 1,
Wherein the mold block includes a conveying wheel that facilitates movement of the mold block when the mold block moves in a plane.
5. The method of claim 4,
Wherein the transferring wheel is formed to be able to be drawn into the mold block when the movable mold is lowered and the mold block is closely contacted.
5. The method of claim 4,
Wherein the transfer wheel is formed to be movable in any direction on the XY plane.
The method according to claim 1,
Wherein the movable mold includes a tapered protrusion protruding downward,
Wherein the mold block includes a guide hole having a shape corresponding to the protrusion.
The method according to claim 1,
Wherein the stationary mold includes a contact sensor formed at an end of the opening and sensing whether the mold block is drawn to the end of the opening.
Can be fastened or detached from the stationary mold,
At least one cavity according to the shape of the injection molding,
And an insert support configured to contact an object to be inserted in the injection object, to place the object in the cavity, and to move downward by the movable mold when the movable mold descends.
10. The method of claim 9,
Further comprising a transfer handle formed on a side of the mold block so that the operator can hold the mold block when the mold block slides on the opening formed in the stationary mold and is drawn in or drawn out.
10. The method of claim 9,
Further comprising a transfer wheel for facilitating movement of the mold block when the mold block moves in a plane.
12. The method of claim 11,
Wherein the conveying wheel is formed to be able to be drawn into the mold block when the movable mold is lowered and the mold block is closely contacted.
12. The method of claim 11,
Wherein the conveying wheel is formed to be movable in any direction on the XY plane.

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