KR20220035724A - Deviece for harden preventiing - Google Patents

Abstract

The present invention includes a batch tank in which liquid materials are stored; and a rotating part installed in the batch tank and circulating the liquid level of the liquid material, wherein the liquid material is a curable material that reacts to moisture or external temperature.

Description

DEVIECE FOR HARDEN PREVENTIING}

The present invention relates to a curing prevention device that can prevent curing of a liquid curable material.

Molding materials are raw materials for molded products manufactured by extrusion molding, injection molding, pressing, direct processing, or compounding. There are several types of such molding materials, but for example, liquid curable materials can be used in injection molding.

Liquid curable materials may include thermosetting resins and moisture curing resins, such as cast urethanes.

During injection molding of such mold urethane, the raw materials of mold urethane and the curing agent are injected into the injection mold by stirring and then pouring. At this time, as the mold urethane was cured simultaneously with the stirring of the raw materials and the curing agent, the pot life was limited to 1 to 10 minutes.

Recently, molded urethane with greatly improved pot life has been released, and an injection molding method using this molded urethane has been disclosed. (Refer to Registered Patent Publication No. 10-1388650)

However, in the prior art, when the molded urethane is stored for a long time, a phenomenon occurs in which the liquid level of the molded urethane hardens.

When manufacturing injection molded products using such molded urethane, there were problems such as defects in the injection molded products, breakdown of injection molding equipment, and loss of raw materials.

Registered Patent Publication No. 10-1388650 (2014.04.17)

The problem to be solved by the present invention is to provide a curing prevention device that can prevent curing of a liquid curable material by circulating the liquid surface of the liquid curable material through a rotating part.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned can be clearly understood by those skilled in the art from the description below.

An anti-hardening device according to an embodiment of the present invention includes a batch tank in which liquid material is stored; and a rotating part installed in the batch tank and circulating the liquid level of the liquid material, wherein the liquid material is a curable material that reacts to moisture or external temperature.

In addition, the rotating part may include a wing part that rotates in contact with the liquid level, and may further include a moving part that adjusts the height of the wing part so that the rotational surface of the wing part matches the height of the liquid level.

In addition, the moving part is a buoyancy material coupled to the wing portion, and the buoyancy material generates buoyancy so that the wing portion can be raised and lowered according to a change in the height of the liquid surface.

In addition, the rotating part includes a first shaft disposed in the batch tank and rotating; and a hub through which the first shaft penetrates and connected to the wing portion, wherein a guide rail is formed along the vertical direction on the outer peripheral surface of the first shaft, and is coupled to the inner peripheral surface of the hub to enable elevation along the guide rail. A guide slit is formed, and the first shaft and the hub can be rotated integrally by combining the guide rail and the guide slit.

Additionally, when the wing portion is lifted and lowered by the moving unit, the guide slit of the hub may be lifted and lowered along the guide rail of the first shaft.

In addition, the end of the wing is disposed to contact the contact area where the liquid surface and the inner surface of the batch tank come into contact, and further includes a scraping part coupled to the end of the wing, and when the wing part rotates, the scraping part touches the contact area. You can scrape it off accordingly.

Additionally, the scraping part may include an elastic material.

In addition, the moving part is an actuator and includes a sensing part that detects the liquid level height; And it may further include a control unit that controls the actuator so that the rotation surface of the wing unit matches the liquid level height according to the measurement value of the sensing unit.

In addition, the rotating part includes wings, and when the liquid level is at a specific height, a portion of the wings may be disposed below the liquid level, and the remainder of the wings may be disposed above the liquid level.

Additionally, the wing portions may be comprised of a plurality of wing portions, and the plurality of wing portions may have different rotation radii from the central axis of the batch tank.

Additionally, the one with the largest turning radius among the plurality of wings may be arranged to contact the inner surface of the batch tank.

In addition, it may further include a magnetic material that is movably disposed along the outer surface of the batch tank and induces rotation and elevation of the wing portion.

Other specific details of the invention are included in the detailed description and drawings.

The curing prevention device according to an embodiment of the present invention has the effect of preventing curing of the curable material by circulating the liquid surface of the curable material.

Furthermore, the curing prevention device according to an embodiment of the present invention can provide the curable material stored in an uncured state in the batch tank to the injection molding equipment, thereby preventing failure of the injection molding equipment, thereby preventing the manufacture of Defects in injection molded products can be prevented, and loss of raw materials can also be prevented.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 is a cross-sectional view showing an anti-hardening device according to a first embodiment of the present invention.
Figure 2 is a cross-sectional view showing the rotating part of the anti-hardening device according to the first embodiment of the present invention.
Figure 3 is a plan view showing the rotating part of the anti-hardening device according to the first embodiment of the present invention.
Figure 4 is a cross-sectional view showing an anti-hardening device according to a second embodiment of the present invention.
Figure 5 is a cross-sectional view showing the scraping portion of the anti-curing device according to the second embodiment of the present invention.
Figure 6 is a cross-sectional view showing an anti-hardening device according to a third embodiment of the present invention.
Figure 7 is a cross-sectional view showing an anti-hardening device according to a fourth embodiment of the present invention.
8 to 9 are cross-sectional views showing an anti-hardening device according to a fifth 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 provide a general understanding of the technical field to which the present invention pertains. It is provided to fully inform the skilled person of the scope of the present invention, and the present invention is only defined by the scope of the claims.

The terminology used herein is for describing embodiments and is not intended to limit the invention. As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. As used in the specification, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other elements in addition to the mentioned elements. Like reference numerals refer to like elements throughout the specification, and “and/or” includes each and every combination of one or more of the referenced elements. Although “first”, “second”, etc. are used to describe various components, these components are of course not limited by these terms. These terms are merely used to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may also be a second component within the technical spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless clearly specifically defined.

Spatially relative terms such as “below”, “beneath”, “lower”, “above”, “upper”, etc. are used as a single term as shown in the drawing. It can be used to easily describe the correlation between a component and other components. Spatially relative terms should be understood as terms that include different directions of components during use or operation in addition to the directions shown in the drawings. For example, if a component shown in a drawing is flipped over, a component described as "below" or "beneath" another component will be placed "above" the other component. You can. Accordingly, the illustrative term “down” may include both downward and upward directions. Components can also be oriented in other directions, so spatially relative terms can be interpreted according to orientation.

The present invention relates to a curing prevention device that can be applied to a batch tank in which liquid curable materials are stored in existing injection molding equipment that performs injection molding of curable materials.

Hereinafter, an anti-hardening device according to the first embodiment of the present invention will be described.

Figure 1 is a cross-sectional view showing a curing prevention device according to a first embodiment of the present invention, Figure 2 is a cross-sectional view showing a rotating part of the curing prevention device according to a first embodiment of the present invention, and Figure 3 is a first embodiment of the present invention. This is a plan view showing the rotating part of the anti-hardening device according to .

As shown in Figures 1 to 3, the curing prevention device according to the first embodiment of the present invention includes a batch tank 100, a rotating part 200a, and a moving part.

The batch tank 100 stores liquid material and may be formed in a cylindrical shape.

Here, the liquid material may be a curable material (i.e., a liquid curable material), and the curable material is a mixture of raw materials and a curing agent, and may be a moisture-curable material that hardens depending on moisture, a thermosetting material that hardens depending on the external temperature, etc. there is. For example, the curable material may be mold urethane and epoxy resin, but is not particularly limited.

The curable material stored in the batch tank 100 may be agitated. At this time, the stirring may be done by an impeller or the like disposed within the curable material.

The curable material stored in the batch tank 100 may be supplied to a fixed-quantity injection unit (not shown) or an injection machine (not shown) of injection molding equipment (not shown). Here, the fixed-quantity injection unit serves to inject a fixed amount of the hardenable material supplied from the batch tank into the injection molding machine through the reciprocating motion of the piston, and the injection machine serves to pressurize the hardenable material supplied from the fixed-quantity injection unit and inject it into the cavity of the mold. do.

As will be described later, as the liquid level of the curable material stored in the batch tank 100 is circulated by the rotating unit 200a, curing of the curable material stored in the batch tank 100 is prevented. Therefore, when the curable material stored in the batch tank 100 is supplied to the fixed-quantity injection unit (not shown) or the injection machine (not shown), clogging due to hardening of the curable material can be prevented.

The batch tank 100 may receive nitrogen from the nitrogen filling tank 10 in order to reduce hardening of the curable material due to reaction with moisture or external temperature. In this way, the nitrogen pressure filled in the batch tank 100 can also be used to push the curable material when discharging the curable material.

The batch tank 100 may be kept warm by the thermal insulation device 20 to prevent hardening due to temperature changes in the curable material. For example, the thermal insulation device may be a thermal insulation tank that surrounds the outer surface of the batch tank 100 and circulates a thermal insulation fluid therein.

Meanwhile, when the curable material is stored in the batch tank 100 for a long time, the curable material hardens from the liquid level due to moisture or external temperature. In order to prevent this, the present invention is provided with a rotating part 200a that circulates the liquid level of the curable material (i.e., liquid material).

The rotating unit 200a is not used to stir the curable material like a conventional stirrer, but serves to prevent the curable material from hardening by circulating around the liquid level of the curable material.

In this embodiment, the rotating part 200a includes a wing part 210, a first shaft 220, and a hub 230.

The wing portion 210 is rotated by a driving means to circulate the liquid level of the hardenable material, and can rotate in contact with the liquid level of the hardenable material.

The driving means rotates the first shaft 220 fastened through the hub 230 coupled to the central axis of the wing 210, thereby driving the wing 210, the first shaft 220, and the hub 230. It can be rotated as one piece. For example, a drive motor 700 may be used as the driving means, and a drive shaft of the drive motor 700 may be connected to the first shaft 220.

Meanwhile, as an example, the wing portion 210 may be continuously rotated by a driving means to circulate the liquid level of the curable material. At this time, the speed at which the driving means rotates the wing portion 210 may be relatively low.

Additionally, as an example, the wing portion 210 may be intermittently rotated by a driving means to intermittently circulate the liquid level of the hardenable material. At this time, the speed at which the driving means rotates the wing portion 210 may be relatively high.

Additionally, as an example, the wing portion 210 may be formed in a plate shape or in a shape in which one side and the other side of the plate shape are bent in opposite directions.

Additionally, as an example, the wing portion 210 may be formed single or plural. At this time, the plurality of wing parts 210 may be radially coupled to the hub 230, and the plurality of wing parts 210 may have the same or different lengths.

In addition, as an example, the wings 210 may rotate while partially submerged in the water of the hardenable material. In this case, the wings 210 circulate not only in the liquid level of the hardenable material but also in the water adjacent to the liquid level of the hardenable material. You can do it.

At this time, the wing portion 210 may have a specific gravity such that only half of it is submerged in the liquid level of the hardenable material. In this case, when the wing portion 210 rotates, an upward flow flowing upward from below the liquid level of the curable material and a downward flow flowing downward from above the liquid surface of the curable material occur, thereby improving the effect of preventing hardening of the curable material. .

The first shaft 220 serves to transmit rotational force generated by the driving means to the hub 230 and the wing portion 210.

The first shaft 220 is disposed in the batch tank 100 and rotated by a driving means. Here, the first shaft 220 is preferably disposed along the central axis of the batch tank 100, but is not particularly limited, and the first shaft 220 is disposed at an angle with respect to the central axis of the batch tank 100. It can be.

Referring to Figures 2 and 3, the first shaft 220 penetrates the central axis of the hub 230, and a guide rail 221 is formed along the outer peripheral surface of the first shaft 220. A guide slit 231 formed on the inner peripheral surface of the hub 230 is coupled to the guide rail 221 to enable elevation. Therefore, as the rotational force of the first shaft 220 is transmitted to the hub 230 by the combination of the guide rail 221 and the guide slit 231, the first shaft 220 and the hub 230 can be rotated integrally. You can. Additionally, the guide slit 231 of the hub 230 may be moved up and down along the guide rail 221 of the first shaft 220.

For example, the guide slit 231 may have a larger cross-sectional area than the guide rail 221. Therefore, the guide slit 231 of the hub 230 can be easily raised and lowered along the guide rail 221 of the first shaft 220.

For example, the guide rail 221 and the guide slit 231 may be formed in the form of a single spline, but are not particularly limited and may be formed in the form of a plurality of splines arranged along the circumferential direction.

As described above, the hub 230 can not only be lifted and lowered along the first shaft 220 by combining the guide rail 221 and the guide slit 231, but also can be rotated integrally with the first shaft 220. there is. And the outer peripheral surface of the hub 230 is connected to the wing portion 210. Accordingly, the wing portion 210, the first shaft 220, and the hub 230 can be rotated as one body.

Meanwhile, when the water level in the batch tank 100 changes, the rotation surface of the wing portion 210 may not match the liquid level.

To prevent this, the moving part serves to adjust the height of the wing part 210 so that the rotation surface of the wing part 210 matches the height of the liquid surface.

In this embodiment, the moving part may be a buoyancy member 310 coupled to the wing part 210. This buoyancy material 310 generates buoyancy and can raise or lower the height of the wing portion 210 according to changes in the liquid level of the hardenable material, and the wing portion 210 is always kept at the liquid level of the hardenable material by the buoyancy material 310. can be placed. At this time, when the wing part 210 is lifted and lowered by the buoyancy material 310, the guide slit 231 of the hub 230 connected to the wing part 210 moves the guide rail 221 of the first shaft 220. As the wing part 210 is lifted and lowered, the lift and lowered wing part 210 may be guided by the lift and lower of the guide slit 231 relative to the guide rail 221.

For example, the buoyancy material 310 is installed in the middle between the top and bottom of the wing portion 210, so that a portion of the wing portion 210 is disposed below the liquid level of the hardenable material, and the remainder of the wing portion 210 Can be placed above the liquid level of the curable material. In this way, by installing the buoyancy material 310 in the middle portion of the wing portion 210, the wing portion 210 can be arranged to be partially submerged in the liquid level of the hardenable material.

In this case, when the wing portion 210 rotates, an upward flow flowing upward from below the liquid level of the curable material and a downward flow flowing downward from above the liquid surface of the curable material occur, thereby improving the effect of preventing hardening of the curable material. .

For example, the buoyancy material 310 may be one of an air-filled tube, an air-filled balloon, and a float, but is not particularly limited.'

Below, the operation of this embodiment will be described.

First, the batch tank 100 is filled with a curable material of a specific height.

Afterwards, the buoyancy material 310 generates buoyancy to constantly adjust the height of the wings 210 so that the rotation surface of the wings 210 always matches the liquid level height of the hardenable material.

After this, the wing portion 210 disposed at the level of the liquid level of the curable material is rotated by the driving means, and as a result, the liquid level of the curable material is circulated, thereby preventing hardening of the curable material.

Hereinafter, an anti-hardening device according to a second embodiment of the present invention will be described.

Figure 4 is a cross-sectional view showing a curing prevention device according to a second embodiment of the present invention, and Figure 5 is a cross-sectional view showing a scraping portion of the curing prevention device according to a second embodiment of the present invention.

As shown in Figure 4, the curing prevention device according to the second embodiment of the present invention is the same as the curing prevention device according to the first embodiment of the present invention, except that the liquid level of the curable material and the inner surface of the batch tank 100 are The end of the wing portion 210 is disposed to contact the contact area. Accordingly, when the wing portion 210 rotates, the distal end of the wing portion 210 scrapes along the above-mentioned contact area.

This means that when the curable material is stored in the batch tank 100 for a long time, the curable material hardens from the liquid level due to moisture or external temperature, and the cured material among the curable materials sticks to the contact area described above, causing the above-mentioned This is to scrape off any hardened material adhering to the contact area.

For example, as the rotation radius of the wing portion 210 is formed as the distance from the outer peripheral surface of the hub 230 to the inner surface of the placement tank 100, the end of the wing portion 210 may be in contact with the contact area described above. there is.

As shown in FIG. 5, a scraping part 400 may be installed at the end of the wing part 210. This scraping part 400 contacts the above-mentioned contact area instead of the end of the wing part 210, so that when the wing part 210 rotates, the scraping part 400 removes the hardened material stuck to the above-mentioned contact area. It can be scraped off.

For example, the scraping part 400 may be formed in a curved shape corresponding to a predetermined portion of the inner surface of the batch tank 100. Additionally, the scraping part 400 may include an elastic material. For example, the elastic material may be rubber, epoxy, urethane, etc.

Below, the operation of this embodiment will be described.

First, the batch tank 100 is filled with a curable material of a specific height.

Afterwards, the buoyancy material 310 generates buoyancy to constantly adjust the height of the wings 210 so that the rotation surface of the wings 210 always matches the liquid level height of the hardenable material.

After this, the wing portion 210 disposed at the level of the liquid level of the curable material is rotated by the driving means, and as a result, the liquid level of the curable material is circulated, thereby preventing hardening of the curable material.

At this time, as the wing portion 210 rotates, the scraping portion 400 also rotates to scrape off the hardened material adhering to the contact area described above.

Hereinafter, an anti-hardening device according to a third embodiment of the present invention will be described.

Figure 6 is a cross-sectional view showing an anti-hardening device according to a third embodiment of the present invention.

As shown in Figure 6, the curing prevention device according to the third embodiment of the present invention is the same as the curing prevention device according to the first or second embodiment of the present invention, but the outer surface of the batch tank 100 is It may further include a magnetic material 600 that is movably disposed and induces rotation and elevation of the wing portion 210.

In this embodiment, the wing portion 210 is made of a conductive material, and the magnetic material 600 may be a permanent magnet.

Accordingly, rotation and elevation of the wing portion 210 may be induced by the magnetic force of the magnetic material 600.

For example, the magnetic material 600 may be disposed at a specific height corresponding to the liquid level of the curable material on the outer surface of the placement tank 100. At this time, the wing portion 210 is pulled toward the magnetic material 600 by the magnetic force of the magnetic material 600 and then stops.

Thereafter, when the magnetic material 600 is moved in the circumferential direction based on a specific height corresponding to the liquid level height of the curable material on the outer surface of the batch tank 100, the wing portion 210 is moved by the magnetic force of the magnetic material 600. It can be rotated in the circumferential direction. As a result, as the liquid level of the curable material is circulated by the rotation of the wing portion 210, hardening of the curable material is prevented. In this embodiment, the movement of the magnetic material 600 can be done manually or automatically.

Hereinafter, an anti-curing device according to a fourth embodiment of the present invention will be described.

Figure 7 is a cross-sectional view showing an anti-hardening device according to a fourth embodiment of the present invention.

As shown in Figure 7, the hardening prevention device according to the fourth embodiment of the present invention is the same as the hardening prevention device according to the first embodiment of the present invention, but the moving part is composed of an actuator (not shown) and the sensing part It may further include 500 and a control unit (not shown).

The actuator has a rod that rotatably supports the lower surface of the wing portion 210 through a bearing, and the wing portion 210 can be raised and lowered by lifting the rod.

The sensing unit 500 detects the liquid level of the curable material and transmits it to the control unit. The sensing unit 500 may be a water level sensor, a distance sensor, a laser sensor, an infrared sensor, etc., but is not particularly limited.

The control unit controls the actuator 320 so that the rotation surface of the wing unit 210 matches the liquid level height according to the measurement value of the sensing unit 500, and the actuator 320 adjusts the rotation surface of the wing unit 210 under the control of the control unit. The wing portion 210 is raised and lowered to match the liquid level.

Hereinafter, an anti-hardening device according to the fifth embodiment of the present invention will be described.

Figures 8 and 9 are cross-sectional views showing a curing prevention device according to a fifth embodiment of the present invention.

As shown in Figures 8 and 9, the curing prevention device according to the fifth embodiment of the present invention includes a batch tank 100 and a rotating part 200b.

Since the batch tank 100 is the same as the batch tank 100 of the anti-hardening device according to the first embodiment of the present invention, detailed description is omitted.

In this embodiment, the rotating part 200b serves to prevent hardening of the liquid surface of the curable material by forming a vortex on the liquid surface of the curable material.

This rotating part 200b may include a wing part 240, a second shaft 250, and a support part 260.

The wing portion 240 is rotated by a driving means and serves to form a vortex on the liquid surface of the hardenable material. Here, the driving means rotates the second shaft 250 connected via the wing part 240 and the support part 260, thereby uniting the wing part 240, the second shaft 250, and the support part 260. It can be rotated. For example, a drive motor 700 may be used as the driving means, and the drive shaft of the drive motor 700 may be axially connected to the second shaft 250.

When the liquid level of the hardenable material is at a certain height, part of the wing 240 is disposed below the liquid level of the hardenable material, and the remainder of the wing 240 is disposed above the liquid level of the hardenable material. It is placed. Therefore, when the wing portion 240 rotates, a vortex is formed along the rotation path of the wing portion 240 on the liquid surface of the hardenable material.

Furthermore, the wing parts 240 are comprised of a plurality, and the plurality of wing parts 240 are arranged to have different rotation radii from the central axis of the batch tank 100. As a result, the plurality of wings 240 rotate at different rotation radii from the central axis of the batch tank 100. Accordingly, when the plurality of wings 240 rotate, a plurality of vortices having different rotation radii may be formed on the liquid surface of the hardenable material along different rotation paths of the plurality of wings 240.

For example, the plurality of wing parts 240 include a first wing part 241 having a first radius of rotation from the central axis of the batch tank 100, and a second radius of rotation from the central axis of the batch tank 100. It may include a second wing portion 242, and the first rotation radius may be larger than the second rotation radius. Therefore, when the first wing part 241 and the second wing part 242 rotate, the liquid surface of the hardenable material has a first rotation radius along the rotation path of the first wing part 241 and the second wing part 242, respectively. A vortex with a vortex and a vortex with a second radius of rotation may be formed.

For example, the one with the largest rotation radius among the plurality of wing parts 240 may be arranged to contact the inner surface of the batch tank 100. Therefore, when the wing parts 240 rotate, the one with the largest rotation radius among the wing parts 240 can be scraped along the inner surface of the batch tank 100.

Meanwhile, the scraping part 400 described above may be installed at the end of the wing having the largest turning radius among the plurality of wing parts 240.

The second shaft 250 serves to transmit the rotational force generated by the driving means to the support portion 260 and the wing portion 240.

The second shaft 250 is disposed in the batch tank 100 and rotated by a driving means. Here, the second shaft 250 is preferably disposed on the central axis of the batch tank 100, but is not particularly limited, and the second shaft 250 may be disposed at an angle with respect to the central axis of the batch tank 100. You can.

The support portion 260 serves to connect the second shaft 250 and the wing portion 240. Therefore, by adjusting the length of the support portion 260, the rotation radius of the wing portion 240 can be adjusted.

The support part 260 connects the first support part 261 connecting the upper part of the second shaft 250 and the upper part of the wing part 240, and the lower part of the second shaft 250 and the lower part of the wing part 240. It may include a second support portion 262.

For example, referring to FIG. 8, when the liquid level of the curable material is located between the first support part 261 and the second support part 262, the curable material may be stirred by rotation of the second support part 262. It may be possible.

In addition, referring to FIG. 9, when the liquid level of the curable material is located above the first support part 261 and the second support part 262, the rotation of the first support part 261 and the second support part 262 The two parts of the hardenable material may be agitated by rotation.

Below, the operation of this embodiment will be described.

First, the batch tank 100 is filled with a curable material of a specific height.

Next, a plurality of wings 240 having different rotation radii are rotated from the central axis of the batch tank 100 by a driving means.

As a result, a plurality of vortices having different rotation radii are formed along different rotation paths of the plurality of wings 240 at the liquid surface of the curable material, thereby preventing hardening of the curable material.

Therefore, the curing prevention device according to an embodiment of the present invention has the effect of preventing curing of the liquid curable material by circulating the liquid surface of the liquid curable material.

Furthermore, the curing prevention device according to an embodiment of the present invention can provide the curable material stored in an uncured state in the batch tank to the injection molding equipment, thereby preventing failure of the injection molding equipment, thereby preventing the manufacture of Defects in injection molded products can be prevented, and loss of raw materials can also be prevented.

Above, embodiments of the present invention have been described with reference to the attached drawings, but those skilled in the art will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. You will be able to understand it. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive.

100: batch tank
200a: rotating part
210: wing part
220: 1st shaft
221: Guide rail
230: hub
231: Guide slit
200b: rotating part
240: wing part
241: first wing part
242: second wing part
250: 2nd shaft
260: support part
261: first support part
262: second support
310: Buoyancy material
400: Scraping part
500: Sensing unit
600: magnetic material
700: Drive motor

Claims (12)

A batch tank where liquid materials are stored; and
It is installed in the batch tank and includes a rotating part that circulates the liquid level of the liquid material,
A curing prevention device, characterized in that the liquid material is a curable material that reacts to moisture or external temperature.
According to paragraph 1,
The rotating part includes a wing part that rotates in contact with the liquid surface,
An anti-hardening device further comprising a moving part that adjusts the height of the wing portion so that the rotation surface of the wing portion matches the liquid level height.
According to paragraph 2,
The moving part is a buoyancy material coupled to the wing part,
An anti-hardening device characterized in that the buoyancy material generates a buoyancy force to raise and lower the wing portion according to a change in the height of the liquid surface.
According to paragraph 2,
The rotating part,
a first shaft disposed in the batch tank and rotating; and
It includes a hub through which the first shaft penetrates and is connected to the wing portion,
A guide rail is formed along the vertical direction on the outer peripheral surface of the first shaft,
A guide slit is formed on the inner peripheral surface of the hub to enable elevation along the guide rail,
An anti-curing device, characterized in that the first shaft and the hub are rotated integrally by combining the guide rail and the guide slit.
According to clause 4,
When the wing part is lifted and lowered by the moving part,
An anti-hardening device, characterized in that the guide slit of the hub is raised and lowered along the guide rail of the first shaft.
According to paragraph 2,
The end of the wing portion is arranged to contact a contact area where the liquid surface and the inner surface of the batch tank come into contact,
It further includes a scraping part coupled to the end of the wing part,
An anti-curing device, characterized in that the scraping part scrapes along the contact area when the wing part rotates.
According to clause 6,
An anti-hardening device, characterized in that the scraping part includes an elastic material.
According to paragraph 2,
The moving part is an actuator,
A sensing unit that detects the liquid level height; and
An anti-curing device further comprising a control unit that controls the actuator so that the rotation surface of the wing unit matches the liquid level height according to the measurement value of the sensing unit.
According to paragraph 1,
The rotating portion includes a wing portion,
When the liquid level is at a specific height, a part of the wing is disposed below the liquid level, and the remainder of the wing is disposed above the liquid level.
According to clause 9,
The wing portion consists of a plurality of parts,
An anti-curing device, characterized in that the plurality of wings have different rotation radii from the central axis of the batch tank.
According to clause 10,
An anti-curing device, characterized in that the one having the largest rotation radius among the plurality of wings is arranged to contact the inner surface of the batch tank.
According to any one of claims 2 to 11,
An anti-curing device, characterized in that it further includes a magnetic material that is movably disposed along the outer surface of the batch tank and induces rotation and elevation of the wing portion.