KR20060033102A - Cooling apparatus of mold for mspc products - Google Patents

Abstract

The present invention relates to a cooling apparatus for a mold for Modified Sulfur Polymer Concrete (MSPC) products, and more particularly, to a cooling apparatus for a mold for MSPC products for cooling a mold heated to a predetermined temperature in a manufacturing process. To this end, the present invention provides a cooling device for a mold for an MSPC product, comprising: a cooling chamber in which a sealed mold movement path is installed to connect an inlet and an outlet formed at a position corresponding to the inlet; An entrance gate for selectively opening and closing the entrance; An exit gate for selectively opening and closing the exit; And a cooling unit cooling the inside of the cooling chamber to a predetermined temperature.

MSPC, Transfer, Cooling

Description

Cooling apparatus of mold for MSPC products

1 is a side cross-sectional view showing a cooling apparatus of a mold for Modified Sulfur Polymer Concrete (MSPC) product according to a preferred embodiment of the present invention.

2 is a plan view of FIG.

3 shows an inlet gate of a cooling device of a mold for an MSPC product according to a preferred embodiment of the present invention.

Figure 4 is a perspective view showing that the loading portion of the cooling device of the mold for MSPC products according to a preferred embodiment of the present invention is installed on the transfer member.

Figure 5 is a side view showing a tension control unit of the cooling device of the mold for MSPC products according to a preferred embodiment of the present invention.

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

10: cooling chamber 20: cooling unit

30: frame 40: mold

60 curtain 70 transfer unit

100: cooling device of mold for MSPC products

The present invention relates to a cooling apparatus for a mold for Modified Sulfur Polymer Concrete (MSPC) products, and more particularly, to a cooling apparatus for a mold for MSPC products for cooling a mold heated to a predetermined temperature in a manufacturing process.

In general, concrete is widely used as a representative construction material because of its high compressive strength and durability, low cost and abundance. Today, with the development of the industry, various structures are gradually increasing in size and diversification, and accordingly, there is an increasing need for concrete with improved physical properties than conventional concrete. In particular, there is a great need to remedy the shortcomings of large brittleness, small tensile strength and easy cracking, which are the biggest drawbacks of concrete. In addition, concrete is weak in an acidic environment and easy to proliferate various bacteria, a situation in which concrete having high chemical resistance and antibacterial property is required. In addition, as various structures are gradually enlarged and diversified, there is an increasing need for concrete having improved durability compared to conventional concrete.

On the other hand, in concrete pipes such as sewage pipes, sewage and wastewater pipes and underground hollow pipes, the pipe is corroded or cracked due to the reaction of harmful components such as acid mixed with sewage, sewage and waste water and cement components. Occurrences and ultimately polluting the soil often occur. In addition, when communication between the existing concrete pipe and other concrete pipes is required, the pipe is drilled or hammered, but due to the brittleness of the concrete pipe may cause cracks in the pipe during the drilling operation. On the other hand, after connecting the pipe and the joint is treated with cement mortar, but also the joint is not well adhered to the cement mortar, the leakage occurs in the joint often occurs to contaminate the ground. In addition, when repairing the damaged existing concrete pipes with cement mortar, the existing concrete pipes and cement mortar are not easily adhered to, so it is not easy to completely repair them.

As a method of compensating the disadvantages of the concrete pipe, a method for manufacturing an MSPC product was developed by pouring a concrete composition containing sulfur polymer into a mold installed with reinforcing bar.

The manufacturing method of the MSPC product is disclosed in Korean Patent Application No. 10-2003-0008279. The manufacturing method of the said MSPC product includes a process of assembling a mold and placing reinforcing bars in a mold, heating the mold to a predetermined temperature in advance, installing a heated mold on a centrifugal molding table, and a sulfur polymer. Mixing the prepared concrete composition at a temperature of about 100 to 160 ° C., transferring the concrete composition to a mold of a centrifugal molding table while maintaining the temperature, and placing the product by rotating the mold by using a centrifugal molding table. It includes a step of molding, a step of cooling the mold of which the molding of the product is completed, and a step of demolding the mold of which the cooling is completed. The preheating of the mold is intended to prevent the temperature of the concrete composition from sharply lowering during the casting of the concrete composition and the molding of the product.

In the centrifugal mold, the mold in which the molding of the product is completed is cooled in air until the temperature suitable for demolding is reached. The mold is usually cooled to 60 ° C. and then demolded from the product.

However, such cooling in air has a problem that it takes a long time to cool to a temperature suitable for demolding. In addition, as the cooling of the mold takes a long time in the continuous production process, there is a disadvantage that a lot of mold is required for production of the product. In addition, if a large number of molds are required for production, a lot of space and cost are required to load and store the molds.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object thereof is to provide a cooling device for a mold for an MSPC product, which can quickly cool a heated mold to a temperature suitable for demoulding.

Another object of the present invention is to provide a cooling device for a mold for an MSPC product, which can reduce the space and cost required for loading and storing the mold by reducing the number of molds required in a continuous production process.

In order to achieve the above object, a cooling apparatus for a mold for an MSPC product according to the present invention comprises: a cooling chamber in which a closed mold movement path is connected to connect an inlet and an outlet formed at a position corresponding to the inlet; An entrance gate for selectively opening and closing the entrance; An exit gate for selectively opening and closing the exit; And a cooling unit cooling the inside of the cooling chamber to a predetermined temperature.

Preferably, the cooling unit includes an air conditioner for cooling the air inside the cooling chamber to a predetermined temperature.

Preferably, the cooling unit has a cooling tube for directly supplying cooling air from the air conditioner to the front side member of the mold.

In addition, the cooling device of the mold for the MSPC product, the support for the cooling chamber from the bottom, the frame is slidably installed with respect to the ground to enable thermal expansion or thermal contraction according to the temperature; And a conveying unit installed in the frame in an infinite orbit to convey the mold.

Preferably, the transfer unit, the transfer member is installed in an endless track in the cooling chamber to discharge the mold entered through the inlet through the outlet; And a loading part installed on the conveying member so that the mold can be loaded.

More preferably, the transfer unit further comprises a rail member installed along the conveying direction of the stacking portion to support the stacking portion, wherein the stacking portion comprises: a stacking plate on which the mold is mounted; A coupling member installed below the loading plate to couple the loading plate to a transfer member; And a wheel member including a wheel shaft connected to the loading plate and a wheel installed on the wheel shaft and supported by the rail member.

In addition, the cooling device of the mold for MSPC products preferably further comprises a tension control unit for adjusting the tension of the transfer member.

Preferably, the transfer unit includes a direction change member installed at one end of the caterpillar to change the direction of the transfer member, wherein the tension control unit comprises: a bearing member provided on a direction change shaft of the direction change member; And a positioning member installed at both ends of the bearing member and the frame so as to be connected to both ends thereof, thereby adjusting the tension of the transfer member by adjusting the position of the bearing member using the positioning member.

Hereinafter, a cooling apparatus of a mold for an MSPC product according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as having a conventional or dictionary meaning, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention. Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Meanwhile, in the following specification, 'mold' is used to mean a case in which a concrete composition is poured, that is, a form itself, as well as a mold containing a product in which the concrete composition is poured and molded. Note that it can also be used.

1 is a side cross-sectional view showing a cooling apparatus of a mold for an MSPC product according to a preferred embodiment of the present invention, Figure 2 is a plan view of FIG. 3 is a view showing an inlet gate of the cooling device of the mold for MSPC products.

1 to 3, the cooling device 100 of the mold for MSPC products includes a cooling chamber 10 having a mold movement path 12 formed therein and an inlet 13 of the cooling chamber 10. The inlet gate 14 provided, the outlet gate 16 provided in the outlet 15 of the cooling chamber 10, and the cooling unit 20 which cools the inside of the cooling chamber 10 are provided.

The cooling chamber 10 has a mold movement path 12 connecting the inlet 13 and the outlet 15 therein. The cooling chamber 10 is installed on the upper surface of the frame 30 to be described later. Preferably, the cooling chamber 10 is a tunnel formed in the direction of the mold movement path 12 relative to the width.

The mold 40 enters into the cooling chamber 10 through the inlet 13 and is discharged to the outside through the outlet 15. The mold 40 entering through the inlet 13 is cooled by the cooling unit 20 while being transferred along the mold movement path 12. The cooling chamber 10 is sealed except for the inlet 13 and the outlet 15 so that outside air is not introduced, the outside is insulated by a heat insulating material (not shown).

The inlet gate 14 and the outlet gate 16 selectively open and close the inlet 13 and the outlet 15 so that the mold 40 can be introduced into and discharged from the cooling chamber 10. Conventional opening and closing means may be employed for the inlet gate 14 and the outlet gate 16. For example, a gate (not shown) that slides up and down by a motor installed on an upper end of the cooling chamber 10 may be employed.

As shown in FIG. 3, the inlet gate 14 is retracted by the movement of the mold 40 and includes a curtain 60 draped from the ceiling of the cooling chamber 10 toward the bottom of the cooling chamber 10. do. The curtain 60 prevents the outside air from flowing into the cooling chamber 10, and at the same time, when the mold 40 is transferred and passes through the inlet 13, the curtain 60 is naturally flipped off by the mold 40. The curtain 60 has an advantage that the installation and maintenance cost is lower than other conventional gate equipment. The curtain 60 may also be installed at the exit gate 16.

On the other hand, the curtain 60 may be made of a transparent material. That is, since the curtain 60 is made of a transparent material such as vinyl, an external worker can watch the process of transferring the mold 40 inside the cooling chamber 10.

The cooling unit 20 cools the inside of the cooling chamber 10 to a predetermined temperature so that the mold inside the cooling chamber 10 becomes a temperature suitable for demoulding.

The cooling unit 20 may include an air conditioner for supplying cooling air, and a temperature sensor (not shown) for measuring a temperature inside the cooling chamber 10 and transmitting the temperature to a controller (not shown). That is, the controller controls the operation of the air conditioner according to the temperature measured by the temperature sensor.

Appropriate number is installed in the cooling unit 20 according to the cooling load. That is, although FIG. 2 shows that four cooling units 20 are installed in the cooling chamber 10, the number can be increased or decreased appropriately.

Preferably, the cooling unit 20 has a cooling tube (not shown) for supplying cooling air directly from the air conditioner to the front side member 42 of the mold 40. The front side member 42 is a member commonly referred to as a 'cast' and is joined to the front of the mold 40. The front side member 42 serves to transfer the centrifugal force of the centrifugal molding table (not shown) together with the rear side member 41 at the time of forming the product. Since the front side member 42 is thick, it is not easy to cool by the air supplied from the air conditioner. Therefore, the front side member 42 can be cooled effectively by supplying cooling air through a separate cooling pipe.

As such, the cooling device 100 of the mold for MSPC products can quickly cool the heated mold to a temperature suitable for demoulding. Therefore, the number of molds required in the continuous production process can be reduced, and the space and cost required for loading and storing the molds can be reduced.

Preferably, the cooling device 100 of the mold for the MSPC product is a frame 30 for supporting the cooling chamber 10 from the bottom, and is transported to the mold 30 is installed in an infinite track on the frame 30 The unit 70 is provided.

The frame 30 is slidably installed with respect to the ground to allow thermal contraction or thermal expansion according to temperature. Since the frame 30 is not fixed to the ground, thermal contraction or thermal expansion is possible. Even when the frame 30 is not fixed to the ground, the frame 30 can be stably placed on the ground because its weight and the weight of the transfer unit 70 are large. As described above, the frame 30 is slidably installed because the frame 30 inside the cooling chamber 10 contracts heat when the mold 40 is transferred into the cooling chamber 10. This is because the heat-shrinkable frame 30 undergoes thermal expansion to return to the original state when the cooling unit 20 does not operate. That is, since the frame 30 is slidably installed, it is possible to prevent the thermal stress caused by thermal contraction and thermal expansion.

The transfer unit 70 is installed in the frame 30 in an infinite orbit to transfer the mold 40 for MSPC products. The transfer unit 70 includes a transfer member 72 provided in the frame 30 in an endless track, and a loading portion 76 on which the mold 40 is loaded.

The transfer member 72 transfers the mold 40 while moving between the drive shaft 71 and the direction switching member 73 by a driving force of a drive motor (not shown). A chain member or a conveyor may be used as the transfer member 72.

The direction change member 73 includes a direction change shaft and a sprocket or gear provided on the direction change shaft. The position of the direction change member 73 is adjusted by the tension control unit 79 mentioned later. This point is explained below.

Preferably, the transfer unit 70 has a rail member 74 which is installed along the conveying direction of the loading portion 76 to support the loading portion 76. The rail member 74 is described in detail below.

More preferably, the rail member 74, as shown in Figures 3 to 5, the side rail member 74a for supporting the mounting portion 76 on the side of the transfer member 72, and the transfer member 72 ), The lower rail member 74b supporting the mounting portion 76 is provided. The side rail member 74a supports the loading part 76 which is moving in the conveyance direction, and the lower rail member 74b is supporting the loading part 76 which is rotating by changing the direction of movement by the direction change member 73. do. On the other hand, in this specification, the conveying direction means the direction in which the mold 40 is loaded and conveyed toward the outlet 15, and the conveying direction means the direction opposite to the conveying direction.

The loading portion 76 is supported by a loading plate 76a on which the mold 40 is loaded, a coupling member 76b for coupling the loading plate 76a to the transfer member 72, and a rail member 74. And a wheel member 76c.

The loading plate 76a is loaded with various molds 40 such as molds for MSPC products. The mounting plate 76a is provided in the conveyance member 72 at predetermined intervals from each other. Preferably, the predetermined interval is an interval capable of supporting both ends of the mold 40.

More preferably, the mounting plate 76a is arranged to form a downwardly inclined surface toward the center thereof, as shown in FIG. This is to prevent the mold 40 whose shape is curved like the mold from shaking during the transfer.

The coupling member 76b is installed below the loading plate 76a to couple the loading plate 76a to the transfer member 72. The engagement member 76b couples the loading plate 76a to the transfer member 72 so that the loading plate 76a moves together as the transfer member 72 is moved.

The wheel member 76c includes a wheel shaft that is connected to the loading plate 76a and a wheel that is installed on the wheel shaft and supported by the rail member 74. That is, since the wheel is supported by the rail member 74, the loading plate 76a can convey the mold 40 stably. The wheel member 76c is supported by the side rail member 74a when the loading portion 76 is moving in the conveying direction, and the loading portion 76 is turned by the turning member 73 and is being rotated. In this case, it is supported by the lower rail member 74b.

Preferably, the transfer unit 70 has a mold sensor (not shown) for detecting the mold 40 to be transferred. The mold sensor is installed at predetermined intervals along the conveying direction of the mold 40 to detect the mold 40 and transmit a signal to the controller. The controller controls the movement of the transfer member 72 by operating the drive motor according to the signal.

Cooling apparatus 100 of the mold for MSPC products according to a preferred embodiment of the present invention may further include a tension control unit 79 for adjusting the tension of the transfer member (72).

As shown in FIG. 5, the tension control unit 79 has a bearing member 79a provided on the direction change shaft 73a and a position where both ends thereof are connected to the bearing member 79a and the frame 30, respectively. The adjusting member 79b is provided. The tension adjustment unit 79 adjusts the tension applied to the transfer member 72 by adjusting the position of the bearing member 79a using the position adjustment member 79b.

Preferably, a thread is formed on the outer circumferential surface of the positioning member 79b, and a thread is formed on the frame 30 to mate with the thread. That is, the position of the bearing member 79a can be adjusted to a fine range by rotating the position adjusting member 79b.

Then, the operation of the cooling device 100 of the mold for MSPC products according to the preferred embodiment of the present invention will be described.

First, in the centrifugal molding table (not shown), the mold 40 in which the pouring of the concrete composition and the molding of the product is completed is loaded into the loading part 76. The loading process may be performed by a predetermined transfer loader (not shown) or a crane (not shown). The mounting portion 76 is installed on the transfer member 72 to be spaced apart from each other by a predetermined interval so that both ends of the mold 40 can be mounted. In addition, the mounting plate 76a of the mounting portion 76 forms a downwardly inclined surface toward the center portion thereof. Therefore, the mold 40 whose outer peripheral surface is curved can also be loaded stably.

Since the concrete composition is poured into the mold 40 while heated to about 100 to 160 ° C., the mold 40 is also preheated in a heating apparatus (not shown), so that the casting of the concrete composition and the molding of the product are completed ( 40) still maintains a high temperature.

The mold 40 loaded on the loading unit 76 is transferred into the cooling chamber 10 through the inlet gate 14 by the transfer unit 70. Since the entrance gate 14 is formed of a curtain 60 flipped by the movement of the mold 40, no additional facility or maintenance cost for opening and closing the entrance 13 is required. In addition, when the curtain 60 is made of a transparent material, an external worker may watch the process of transferring the mold 40 inside the cooling chamber 10.

The mold 40 loaded on the loading unit 76 is transferred toward the outlet 15 as the transfer member 72 moves by the driving force of the drive motor. In this transfer process, the wheel member 76c is supported by the side rail member 74a to allow the loading portion 76 to be stably transferred.

The mold 40 transferred into the cooling chamber 10 is cooled to a temperature suitable for demolding by the cooling air supplied from the cooling unit 20. In this process, the transfer member 72 and the frame 30 undergo heat shrink. Since the frame 30 is provided to be slidable with respect to the ground, the frame 30 can be freely contracted by cooling. That is, the thermal stress does not occur in the frame 30.

Further, the tension applied to the conveying member 72 is adjusted by the tension adjusting unit 79. When the conveying member 72 is thermally contracted by the cooling air, the tension force of the conveying member 72 can be adjusted by adjusting the position of the bearing member 79a using the position adjusting member 79b.

The mold 40 cooled to a temperature suitable for demoulding is sequentially discharged to the outside of the cooling chamber 10 through the outlet gate 16. Transfer of the mold 40 by the transfer member 72 is sensed by a mold sensor (not shown). The mold sensor is installed at predetermined intervals along the transfer direction of the mold 40 to detect the mold 40 entering the cooling chamber 10 and the mold 40 discharged to the outside of the cooling chamber 10, respectively. The mold sensor detects the transfer of the mold 40 and transmits the signal to a controller (not shown), and the controller controls the operation of the driving motor according to the signal. Through this process, the molds 40 cooled to a predetermined temperature are discharged to the outside of the cooling chamber 10 one by one, and a new mold 40 is introduced into the cooling chamber 10 from the outside.

The loading part 76 which transferred the mold 40 to the exterior of the cooling chamber 10 is changed by the direction change member 73, and is moved to the original position. The mounting portion 76 is supported by the lower rail member 74b during the return process.

 As mentioned above, the cooling apparatus of the mold for MSPC products which concerns on this invention has the following effects.

First, the heated mold can be quickly cooled to a temperature suitable for demoulding.

Second, by reducing the number of molds required in the continuous production process it is possible to reduce the space and cost required for loading and storing the molds.

Third, it can effectively cope with thermal expansion and thermal contraction caused by temperature change.

Claims (8)

A cooling chamber provided with a closed mold movement path connecting an inlet and an outlet formed at a position corresponding to the inlet; An entrance gate for selectively opening and closing the entrance; An exit gate for selectively opening and closing the exit; And And a cooling unit for cooling the inside of the cooling chamber to a predetermined temperature. The method of claim 1, And said cooling unit is provided with an air conditioner for cooling the air inside said cooling chamber to a predetermined temperature. The method of claim 2, And said cooling unit comprises a cooling conduit for directly supplying cooling air from said air conditioner to the front side member of said mold. The method according to any one of claims 1 to 3, A frame supporting the cooling chamber from a lower side and slidably installed with respect to the ground to enable thermal expansion or thermal contraction according to temperature; And Cooling apparatus for a mold for MSPC products, characterized in that it further comprises a; transfer unit for transporting the mold is installed on the frame in an infinite orbit. The method of claim 4, wherein The transfer unit, A conveying member installed in an endless track in the cooling chamber to discharge the mold introduced through the inlet through the outlet; And Cooling apparatus of the mold for MSPC products, characterized in that the; loading portion is provided on the conveying member so that the mold can be loaded. The method of claim 5, The conveying unit further includes a rail member installed along the conveying direction of the stacking unit to support the stacking unit, The loading portion, A loading plate on which the mold is loaded; A coupling member installed below the loading plate to couple the loading plate to a transfer member; And And a wheel member including a wheel shaft connected to the loading plate and a wheel installed on the wheel shaft and supported by the rail member. The method of claim 5, And a tension control unit for adjusting the tension of the transfer member. The method of claim 7, wherein The transfer unit includes a direction switching member installed at one end of the caterpillar to change the direction of the transfer member, The tension control unit, A bearing member provided on the direction change shaft of the direction change member; And And a positioning member installed at both ends of the bearing member and the frame so as to be connected to both ends thereof, wherein the tension of the transfer member is adjusted by adjusting the position of the bearing member using the positioning member. Cooling device for molds for products.

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