KR102598217B1 - Manifold - Google Patents

Abstract

The present invention relates to a manifold. By manufacturing a manifold using a 3D technique, the bent part of the flow path can be processed into a curved shape, and a process of blocking the entrance of the flow path is additionally performed without using a gun drill when forming the flow path. There is no need to do so, and by forming the sprue bush and support disk integrally with the manifold, the heat of the resin flowing through the flow path is prevented from spreading to the manifold, and the temperature of the resin can be stably maintained at a constant temperature. The purpose is to enable easy removal of foreign substances such as powder and dust present on the surface of the fold.
The manifold according to the present invention is manufactured by combining a plurality of members in a laminated manner using a 3D printing technique.

Description

Manifold {MANIFOLD}

The present invention relates to a manifold, and more specifically, the process of manufacturing a manifold using a 3D technique to process the bent part of the flow path into a curved shape, and blocking the entrance to the flow path by not using a gun drill when forming the flow path. There is no need to perform additional procedures, and by forming the sprue bush and support disk integrally with the manifold, the heat of the resin flowing through the flow path is prevented from spreading to the manifold, and the temperature of the resin can be stably maintained at a constant temperature. It relates to a manifold that can easily remove foreign substances such as powder and dust present on the surface of the finished manifold.

In general, the hot runner manifold of a mold for injecting synthetic resin products is constructed by processing a flow path in an integrated steel plate by drilling to withstand the injection pressure.

However, in the above method, because the flow path was machined using the gundrill method, it was difficult to polish the inside of the machined hole. Also, in manufacturing a manifold of a complex shape, the gundrill is made in a straight line, so the shape of the gundrill hole is different. There is a problem in that the meeting point forms a sharp angle.

In addition, in the case of the flow path, it is drilled with a gun drill and has a vertical section and a horizontal section bent in a right angle direction at the bottom of the vertical section.

At this time, since the horizontal section and the vertical section formed in the conventional manifold form a right angle, there is a problem in that the resin does not move smoothly when moving from the bottom of the vertical section to the horizontal section. In other words, since the connection point where the bottom of the vertical section and one end of the horizontal section are connected are at right angles to each other, it forms a stagnation section that interferes with the flow of resin, which ultimately causes a problem in that the flow speed of resin slows down.

Additionally, the conventional manifold described above has a problem in that a portion of the resin is trapped and fixed at right-angled connection points, thereby narrowing the area of the flow path and ultimately slowing down the flow of the resin.

In addition, there is a problem that defects occur in the product because the resin newly injected into the flow path is mixed with the fixed resin during the movement to form the product.

In addition, the conventional manifold is drilled with a gun drill to form a flow path, and then an additional process is performed to block the entrance where the initial drill entered to prevent resin outflow. This causes the problem that it takes a long time to manufacture the manifold. There is.

Registered Patent Publication No. 10-0855933 (2008.08.27.)

The present invention was developed to solve the problems of the prior art described above. By manufacturing a manifold using a 3D technique, the bent portion of the flow path can be processed into a curved shape, and by not using a gun drill when forming the flow path, the flow path is improved. There is no need to perform an additional process to block the inlet, and by forming the sprue bush and support disk integrally with the manifold, the heat of the resin flowing through the flow path is prevented from diffusing into the manifold, keeping the temperature of the resin at a constant temperature. The purpose is to provide a manifold that can be maintained stably and that can easily remove foreign substances such as powder and dust present on the surface of the finished manifold.

The manifold according to an embodiment of the present invention is a madfold manufactured by combining a plurality of members in a lamination method through a 3D printing technique. During the manufacturing process of the manifold, a flow path for flowing resin inside the manifold is provided. When processed, the flow path includes a vertical section, a horizontal section, and a connection section connecting the vertical section and the horizontal section, and the connection section is formed in a curved shape by the 3D printing technique, and is connected to the upper side of the manifold and On the lower side, the sprue bush and the support disk are formed integrally by the 3D printing technique, and include a cleaning part for cleaning the manufactured manifold, wherein the cleaning part has an open upper surface and accommodates the manifold inside. A rectangular box-shaped enclosure portion in which a receiving space is formed; Coil springs vertically arranged to be spaced apart from each other on the bottom surface of the enclosure unit; a support plate jointly coupled to the upper ends of the coil springs, on which the manifold is located, and having a plurality of passing holes formed at regular intervals; A wrapping part made of an elastic material, which is mounted on the manifold and is formed in a 'ㄷ'-shaped cross-sectional shape and has a structure that simultaneously surrounds the upper surface, one side, and the bottom surface of a certain area of the manifold; a motor installed on the upper surface of the support plate and transmitting power to the wrapping unit to rotate the manifold in place; Vibration transmission parts formed on one side and the other of the wrapping part, respectively, have a first inclined surface on one side, and are made of a metal material to transmit vibration to the manifold through the wrapping part; They are installed on the inner wall of the enclosure at a predetermined distance from each other, and when the wrapping unit and the manifold are rotated together by the motor, the vibration transmitting unit collides, and a second inclined surface facing the first inclined surface is formed, thereby reducing the vibration. A collision portion formed of an elastic material so that the ssam portion and the manifold rotate while lowering in the form of applying a pressing force to the coil spring, and allow the vibration transmission portion to pass while being elastically bent when it collides; and a suction unit installed in the inner space of the enclosure unit and sucking in foreign substances separated due to vibration generated in the manifold.

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The manifold according to the present invention can be manufactured using a 3D technique and the bent portion of the flow path can be processed into a curved shape. Therefore, a stagnation section of the resin is not formed on the flow path, and a section in which the resin accumulates and gradually becomes stuck at the bent portion is not formed, which has the effect of smoothing the flow of the resin.

Additionally, since a gun drill is not used when forming the flow path, there is no need to perform an additional process of blocking the entrance to the flow path. Therefore, there is an effect of reducing the time required to manufacture the manifold.

Additionally, in the process of manufacturing the manifold, the sprue bush and support disk can be formed integrally on the upper and lower sides of the manifold, respectively. This has the effect of maintaining a constant temperature of the resin flowing through the flow path and preventing the heat of the resin from spreading to the manifold, causing the temperature of the resin to decrease unnecessarily.

In addition, by forming the support disk integrally with the lower side of the manifold, the strength of the support disk is reinforced and heat diffusion is prevented in a central cubic form, thereby preventing unnecessary decrease in the temperature of the resin.

1 is a plan perspective view showing a manifold according to an embodiment of the present invention.
Figure 2 is a bottom perspective view showing a manifold according to an embodiment of the present invention.
Figure 3 is a partial cross-sectional perspective view showing a manifold according to an embodiment of the present invention.
Figure 4 is a front view showing a cleaning unit applied to a manifold according to an embodiment of the present invention.
Figure 5 is a plan view showing a cleaning unit applied to a manifold according to an embodiment of the present invention.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are merely provided to ensure that the disclosure of the present invention is complete and to be understood by those skilled in the art. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Throughout the specification, similar parts are given the same reference numerals.

Figure 1 is a plan perspective view showing a manifold according to an embodiment of the present invention, Figure 2 is a bottom perspective view showing a manifold according to an embodiment of the present invention, and Figure 3 is an embodiment of the present invention. This is a partial cross-sectional perspective view showing the manifold.

The manifold 100 according to an embodiment of the present invention is manufactured by combining a plurality of members in a laminated manner using a 3D printing manufacturing technique.

The material of the member can be made of a general material commonly used in 3D printing or a general manifold material.

In the process of manufacturing the manifold 100 according to an embodiment of the present invention through a 3D printing manufacturing technique, a flow path 100a through which resin flows inside the manifold is processed. At this time, the flow path 100a may include a vertical section 101a, a horizontal section 101b, and a connection section 101c connecting the vertical section 101a and the horizontal section 101b, as shown in FIG. 3. there is.

In particular, the connection section 101c may be rounded and formed into a curved shape using a 3D printing manufacturing technique.

Specifically, looking at the conventional manifold manufacturing method, the member that becomes the material of the manifold was drilled with a gun drill to form a flow path having a vertical section and a horizontal section bent in a right angle direction at the bottom of the vertical section.

At this time, since the horizontal section and the vertical section formed in the conventional manifold form a right angle, there is a problem in that the resin does not move smoothly when moving from the bottom of the vertical section to the horizontal section. In other words, since the connection point where the bottom of the vertical section and one end of the horizontal section are connected are at right angles to each other, it forms a stagnation section that interferes with the flow of resin, which ultimately causes a problem in that the flow speed of resin slows down.

Additionally, the conventional manifold described above has a problem in that a portion of the resin is trapped and fixed at right-angled connection points, thereby narrowing the area of the flow path and ultimately slowing down the flow of the resin. In addition, there is a problem that defects occur in the product because the resin newly injected into the flow path is mixed with the fixed resin during the movement to form the product.

However, in the manifold 100 according to an embodiment of the present invention, since the connection section 101c is processed to have a curved shape rather than a right angle, it does not form a stagnation section and does not form a section where resin accumulates and sticks.

Therefore, the manifold 100 according to an embodiment of the present invention is, when the resin moves from the vertical section 101a to the horizontal section 101b, compared to a conventional general manifold through the curved connection section 101c. You can make sure it moves smoothly. Ultimately, the manifold 100 according to an embodiment of the present invention can prevent problems such as slowing down the flow rate of resin and causing defects in products.

Additionally, a conventional manifold is drilled with a gun drill to form a flow path, and then an additional process is performed to block the entrance where the initial drill entered to prevent resin outflow, so it takes a long time to manufacture the manifold. There is a problem.

However, in the manifold 100 according to an embodiment of the present invention, an inlet is not created because the flow path 100a is formed through a 3D printing manufacturing technique.

Therefore, there is no need to perform a process to block the inlet, providing the advantage of reducing the time required to manufacture the manifold 100 compared to the prior art.

Meanwhile, in the present invention, in the process of manufacturing the manifold 100 using a 3D printing manufacturing technique, the sprue bush 110 and the support disk 120 are integrally formed on the upper and lower sides of the manifold 100, respectively.

As with the manifold 100 according to an embodiment of the present invention, when the sprue bush 110 is integrally formed on the upper side of the manifold 100 through a 3D printing manufacturing technique, the resin flowing through the flow path 100a The temperature can be kept constant, and the heat of the resin is spread in the manifold 100, preventing the temperature of the resin from unnecessarily lowering.

In addition, when the support disk is formed integrally with the lower side of the manifold 100, the strength of the support disk can be strengthened and the central cubic shape prevents heat diffusion to prevent the temperature of the resin from being unnecessarily lowered.

Next, the cleaning unit 130 applied to the manifold according to an embodiment of the present invention will be described with reference to FIGS. 4 and 5.

Figure 4 is a front view showing a cleaning unit applied to a manifold according to an embodiment of the present invention, and Figure 5 is a plan view showing a cleaning unit applied to a manifold according to an embodiment of the present invention.

In the process of manufacturing the manifold 100 through a 3D printing manufacturing technique or in the process of using the manifold 100, various foreign substances such as dust are attached to the surface of the manifold 100.

The cleaning unit 130 is configured to provide a cleaner manifold 100 by removing various foreign substances stuck on the manifold 100.

For this purpose, the cleaning unit 130 includes a housing unit 131, a support plate 133, a wrapping unit 134, a motor 135, a vibration transmission unit 136, a collision unit 137, and a suction unit. It may include at least one or more of (138).

The enclosure portion 131 is formed in the shape of a square box with an open upper surface and a receiving space inside which the manifold 100 is accommodated.

The coil springs 132 are applied in plural numbers and vertically arranged to be spaced apart from each other on the bottom surface of the enclosure portion 131.

The support plate 133 is accommodated in the inner space of the housing portion 131, and its bottom is jointly coupled to the top of the coil springs 132.

Accordingly, the support plate 133 is elastically supported by the coil springs 132.

A plurality of passing holes 133a penetrating in the vertical direction are formed at regular intervals in the support plate 133.

The passage hole 133a allows foreign substances separated from the manifold 100 to pass toward the suction unit 138.

The wrapping unit 134 is mounted approximately in the center of the manifold 100.

At this time, the wrapping part 134 includes an upper horizontal part, a vertical part bent in the downward direction at one end of the upper horizontal part, and a lower horizontal part bent in the horizontal direction at the bottom of the vertical part and parallel to the upper horizontal part, forming a 'ㄷ' shape. It can be formed in a cross-sectional shape.

In addition, certain areas of the central portion of the upper and lower sides of the wrapping portion 134 are cut to accommodate the sprue bush 110 and the support disk 120, respectively.

The wrapping portion 134 has this shape and is mounted to simultaneously surround the top, one side, and bottom of the manifold 100.

At this time, the wrapping portion 134 is formed of an elastic material, and is manicured so that the sprue bush 110 and the support disk 120 are accommodated in the cut portions while the upper horizontal portion and the lower horizontal portion are opened in the up and down directions. Just install the fold (100).

The motor 135 is installed on the upper surface of the support plate 133, and its rotation axis is coupled to the bottom surface of the wrapping portion 134.

The motor 135 may be formed as an AC motor or DC motor whose rotation axis rotates in the forward or reverse direction.

This motor 135 rotates the wrapping unit 134 in the forward or reverse direction to rotate the manifold in place.

The vibration transmission units 136 are composed of two pairs and are formed to extend horizontally on one side and the other side of the wrapping unit 134, respectively.

A first inclined surface 1361 is formed on one surface of the vibration transmission unit 136.

The first inclined surface 1361 functions to lower the manifold 100 by interacting with the second inclined surface 1371, which will be described later.

This vibration transmission unit 136 may be formed of a metal material to transmit the vibration generated upon collision with the collision unit 137, which will be described later, to the manifold 100 through the wrapping unit 134.

In addition, since the vibration transmission unit 136 is made of a metal material, it can pass while being bent when it collides with the collision unit 137.

A plurality of collision parts 137 may be installed on the inner wall of the enclosure part 131 to be spaced apart from each other at regular intervals.

In the drawing, an example is shown where two collision parts 137 are applied and face each other with the manifold 100 in between, but it is revealed that the number and positioning of the collision parts 137 can be selectively changed in various ways. .

When the wrapping unit 134 and the manifold 100 are rotated together by the motor 135, the vibration transmitting unit 136 sequentially collides with the collision units 137.

A second inclined surface 1371 facing the first inclined surface 1361 is formed in the collision portion 137.

When the first inclined surface 1361 collides with the second inclined surface 1371, vibration is generated in the vibration transmission unit 136, and this vibration is transmitted to the manifold 100 through the wrapping unit 134.

At this time, the collision portion 137 is made of an elastic material, so that when the vibration transmission portion 136 collides with it, it bends elastically and passes through.

As vibration is transmitted to the manifold 100, foreign substances such as dust on the surface of the manifold 100 are shaken off.

Furthermore, when the first inclined surface 1361 collides with the second inclined surface 1371, the first inclined surface 1361 descends along the second inclined surface 1371.

As the first inclined surface 1361 is lowered, the vibration transmission unit 136, the wrapping unit 134, the motor 135, and the manifold 100 are lowered uniformly, and eventually the support plate 133 is connected to the coil spring ( 132) is pressurized and compressed to a certain level.

Then, when the vibration transmission unit 136 passes through the collision unit 137, the pressing force on the coil spring 132 is released. Accordingly, the coil spring 132 is repeatedly expanded and compressed by its own elastic force and restored to its original state.

In addition, as the coil spring 132 is repeatedly expanded and compressed, the manifold 100 oscillates in the up and down directions, and various foreign substances stuck on the manifold 100 are shaken off by this oscillating action.

And, as the wrapping part 134 is rotated in place by the motor 135, the vibration transmitting part 136 repeatedly collides with the collision part 137, and in this process, the manifold 100 is connected to the coil spring 132. By repeatedly shaking in the up and down directions, foreign substances can be efficiently removed from the manifold 100.

Meanwhile, the suction part 138 is installed on the bottom surface of the enclosure part 131.

The suction unit 138 may be formed of a known intake fan.

Although not shown in the drawing, the suction part 138 may be further installed on the bottom of the cover 1311 of the enclosure part 131.

The suction unit 138 sucks foreign substances separated due to vibration in the manifold through air suction.

At this time, as the suction unit 138 operates, foreign substances separated from the manifold 100 are sucked into the suction unit 138 through the passage hole 133a.

Although not shown in the drawing, a discharge pipe may be connected to the suction unit 138, and the discharge pipe may be connected to a collection tank.

Therefore, foreign substances sucked in by the suction unit 138 can be stored in the collection tank through the discharge pipe.

Those skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. The scope of the present invention is indicated by the scope of the claims described below rather than the detailed description above, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention. must be interpreted.

100: Manifold 100a: Euro
101a: Vertical section 101b: Horizontal section
101c: Connection section 110: Sprue bush
120: Support disk 130: Cleaning unit
131: enclosure 1311: cover
132: coil spring 133: support plate
133a: Passing hole 134: Wrapping part
135: Motor 136: Vibration transmission unit
1361: first slope 137: collision section
1371: second slope 138: suction part

Claims (3)

This is a manifold manufactured by combining multiple members in a laminated manner using a 3D printing technique,
During the manufacturing process of the manifold, a flow path for flowing resin inside the manifold is processed, and the flow path includes a vertical section, a horizontal section, and a connection section connecting the vertical section and the horizontal section, and the connection section is Formed into a curved shape by the 3D printing technique,
A sprue bush and a support disk are formed integrally on the upper and lower sides of the manifold using the 3D printing technique, respectively.
It includes a cleaning unit that cleans the manufactured manifold,
The cleaning unit,
A rectangular box-shaped enclosure portion with an open upper surface and a receiving space inside which the manifold is accommodated;
Coil springs arranged vertically to be spaced apart from each other on the bottom surface of the housing unit;
a support plate jointly coupled to the upper ends of the coil springs, on which the manifold is located, and having a plurality of passing holes formed at regular intervals;
A wrapping part made of an elastic material, which is mounted on the manifold and is formed in a 'ㄷ'-shaped cross-sectional shape and has a structure that simultaneously surrounds the upper surface, one side, and the bottom surface of a certain area of the manifold;
a motor installed on the upper surface of the support plate and transmitting power to the wrapping unit to rotate the manifold in place;
Vibration transmission parts formed on one side and the other of the wrapping part, respectively, have a first inclined surface on one side, and are made of a metal material to transmit vibration to the manifold through the wrapping part;
They are installed on the inner wall of the enclosure at a predetermined distance from each other, and when the wrapping unit and the manifold are rotated together by the motor, the vibration transmitting unit collides, and a second inclined surface facing the first inclined surface is formed, thereby reducing the vibration. A collision portion formed of an elastic material so that the ssam portion and the manifold rotate while lowering in the form of applying a pressing force to the coil spring, and allow the vibration transmission portion to pass while being elastically bent when it collides; and
A manifold installed in the inner space of the housing unit and including a suction part that sucks foreign substances separated due to vibration generated in the manifold. delete delete

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