KR200260606Y1 - manufacturing machine of resin concrete pipe using centrifugal force - Google Patents

Abstract

The present invention relates to a concrete pipe manufacturing apparatus that cannot be manufactured by a general molding technique, and includes an aggregate supply device for supplying aggregates, a resin supply device having a thermostatic bath for supplying unsaturated polyester resins, and curing the aforementioned resin. A curing liquid container filled with a curing agent and a glass fiber supply device for applying glass fibers are formed separately, thereby sequentially supplying each raw material to the inside of the rotating mold, whereby each raw material is mixed and impregnated to form one composite layer. By shaping

Not only can the resin concrete tube with high hardness and high strength mechanical properties be obtained by the glass fiber and aggregate inside the cross section while the inner and outer surfaces are smooth, but the hardener and the resin are discharged by each supply device, The discharge port is not clogged by the cured resin in the feeding device for inputting each raw material. Since the aggregate and the resin are supplied separately, the unsaturated resin provided at a constant temperature in a thermostat has a uniform molding time and other raw materials. It will have an even mixing and impregnation effect to the high-quality resin concrete tube will have the effect.

Description

Manufacturing apparatus of resin concrete pipe using centrifugal force

The present invention relates to a concrete pipe manufacturing apparatus that cannot be manufactured by a general molding technology, and in particular, a raw material discharge device having a plurality of raw material hoppers and respective discharge means, and a mold rotated by a rotating roller. Forming each of them, the raw material is sequentially injected into the inner wall of the mold to rotate the mold to impregnate and mix each raw material by the centrifugal force acting inside the mold to easily produce a high-strength and hard resin concrete tube It can be.

Water and sewage pipes, seawater pipes, pressure pipes, oil pipes, etc. are resin concrete pipes with sizes and materials that cannot be manufactured by general molding technology. It is not to be used, and it is specially manufactured according to each required use purpose such as acid resistance and corrosion resistance.

Since the resin concrete tube cannot be molded in general, the molding resin is extruded into a separate mold, and the resin extruded on the inner wall of the mold is uniformly extruded on the inner wall of the rotating mold, and formed into a circular tube by the centrifugal force of the rotating mold. The resin concrete tube molded in the mold inner wall is completed as a product by removing the mold.

In addition, as a method of forming the above-mentioned large resin concrete tube, a solid resin concrete tube in which resin and concrete are mixed by simultaneously extruding a resin and concrete mixture into a large mold as shown in Patent Application No. 1991-010801. A method of molding has been proposed.

However, the raw material input device for molding the resin concrete pipe in the molding method as described above is discharged in a mixed state of the resin and concrete, so that the raw material outlet is blocked by the hardened resin during continuous operation, so that the smooth discharge of the raw material is not achieved. Therefore, there is a hassle to remove the cured resin formed in the raw material outlet from time to time,

If the work is to be suspended, there is a risk that the entire raw material discharging device is hardened, there is an uneconomic problem that must be completely removed by discharging the unused raw material inside the raw material outlet.

In addition, the unsaturated polyester used as a resin is a thermosetting material having high temperature dependency, causing hardening shortening at high temperature, and hardening delay at low temperature, so that resin and aggregate or concrete are mixed and stirred. Inside the device, frictional heat is generated between the rotating aggregate and the discharge device, which raises the temperature inside the discharge device to promote the curing speed of unsaturated polyester, so that the cured resin remains and accumulates inside the discharge device. After the use time has elapsed, there is a need to clean the inside of the stirring device. As the working time elapses, the curing temperature of the mixed raw material discharged is significantly shortened by increasing the internal temperature of the stirring device. Weld lines are formed by the car, and their mechanical strength is significantly lower. Which it will have a problem.

The present invention was devised to eliminate the problems as described above, the aggregate supply device for supplying aggregate, a resin supply device having a thermostatic bath for supplying unsaturated polyester resin, and a curing agent filled with a curing agent for curing the above-mentioned resin Forming a glass fiber supply device for applying a liquid container, glass fiber, respectively, and thereby by sequentially supplying each raw material to the inside of the rotating mold, so that each raw material is mixed and impregnated to form a composite layer,

Not only can the resin concrete tube with high hardness and high strength mechanical properties be obtained by the glass fiber and aggregate inside the cross section while the inner and outer surfaces are smooth, but the hardener and the resin are discharged by each supply device, The discharge port is not clogged by the cured resin in the feeding device for inputting each raw material. Since the aggregate and the resin are supplied separately, the unsaturated resin provided at a constant temperature in a thermostat has a uniform molding time and other raw materials. The purpose of the present invention is to provide an apparatus for producing a resin concrete tube using centrifugal force that has a uniform mixing and impregnation effect to obtain a high quality large special tube.

Technical means for achieving the object of the present invention is the aggregate supply means for continuously providing aggregate of 0.1 ~ 20mm diameter, the resin supply means by a thermostat for supplying unsaturated polyester resin at a constant temperature, about 0.5 compared to unsaturated resin It consists of a curing agent supply means to be supplied with the resin at ~ 5% by weight and a glass fiber supply device for cutting and spraying the glass fibers, each supply means is to discharge each raw material back and forth inside the splittable rotating mold .

1 is a schematic diagram of a raw material supply device for molding the present invention resin concrete tube

Figure 2 is a schematic cross-sectional view of the manufacturing apparatus for molding the present invention resin concrete tube

Figure 3a and Figure 3b is an embodiment of the aggregate supply device for supplying aggregate when molding the present invention resin concrete tube,

Figure 3a is the operation of the aggregate transport by the conveyor,

Figure 3b is the operation of aggregate transfer by screw.

4a and 4e is a flow chart according to the manufacturing process of the resin concrete tube by the present invention manufacturing apparatus,

4A is a resin supply state diagram,

Figure 4b is a state diagram in which the glass fiber is injected into the upper portion of the resin layer,

Figure 4c is a state diagram in which aggregate is added to the top of the resin layer and the glass fiber layer,

Figure 4d is a state diagram for supplying another resin on top of the aggregate layer,

Figure 4e is a state diagram in which the glass fiber is injected into the resin layer on the aggregate layer.

Explanation of symbols on the main parts of the drawings

1: Transfer device 2,2 ': Mold

3,3 ': roller 4: drive motor

5: outer resin layer 6: outer glass fiber layer

7: aggregate layer 8: inner glass fiber layer

9: internal resin layer

10: aggregate supply device 11: aggregate supply hopper

12: transportation device 13: conveyor belt

14: pipe 15: transfer screw

16: drive motor

20: hardener supply device 21: hardener tank

22: pump pump 23: supply pipe

24: injection nozzle

30: resin supply device 31: thermostat

32: pressure pump 33: supply pipe

34: injection nozzle

40: glass fiber supply device 41: glass fiber storage

42 supply pipe 43 outlet

Hereinafter, preferred embodiments of the present invention will be described.

1 and the manufacturing apparatus of the present invention resin concrete tube, as shown in FIG.

In the manufacturing apparatus of a conventional resin concrete pipe comprising a raw material supply device, a splittable mold, a roller for rotating the electric mold and a drive motor,

Raw material feeder,

An aggregate supply device 10 receiving aggregate from the aggregate supply hopper 11 and discharging it by the transport device 12;

A curing agent supply device 20 in which the curing agent is filled in the curing agent tank 21 and discharged through the injection nozzle 24 along the supply pipe 23 by the pressure pump 22;

The thermostatic chamber 31 which maintains a constant temperature is filled with an unsaturated polyester resin, and the resin supply apparatus 30 which discharges the resin along the supply pipe 33 by the pressure-feed pump 32 through the injection nozzle 34,

The glass fiber feeder 40 is provided separately from the glass fiber reservoir 41 is embedded with irregular glass fiber is discharged from the discharge port 43 passing through the supply pipe 42, respectively,

Each of the foregoing raw material supply device is mounted on the transfer device (1) capable of moving forward and backward.

In addition, the conveying device 12 of the aggregate supply device as described above is formed by a conveyor belt 13, or the conveying screw 15 is built into the inside of the tubular body 14 and rotated by the respective driving motors 16 to aggregate. May be configured to be transported.

2, 2 'is a mold, 3, 3' is a roller, 4 is a driving motor, 5 is an outer resin layer, 6 is an outer glass fiber layer, 7 is an aggregate layer, 8 is an inner glass fiber layer, 9 is Inner resin layer.

The present invention resin concrete tube by the manufacturing apparatus as described above will be described in detail in the manufacturing method sequence according to the manufacturing apparatus.

As shown in FIG. 2, the dividable molds 2 and 2 ′ on a circular tube settled on top of the plurality of rollers 3 and 3 ′ rotated by the operation of the drive motor 4 are driven motors 4. The raw material discharged from the raw material feeding device which is advanced and retracted inside the split mold (2) (2 ') and adheres to the inner wall of the mold (2) (2'), The large forming tube on the top is completed.

In addition, the aggregate supply device 10 is transferred to the aggregate discharged from the aggregate supply hopper (11) into the mold (2) (2 ') through a separate transport device,

As shown in FIG. 3A, the aggregate discharged from the aggregate supply hopper 11 is adjusted using the conveyor belt 13 to adjust the input amount of aggregate by adding or decreasing the rotational speed of the driving motor 16 to rotate the conveyor belt 13. do or,

As shown in FIG. 3B, the conveying device 12 of the aggregate is incorporated with the conveying screw 15 inside the tubular body 14 to reduce the rotational speed of the driving motor 16 to rotate the conveying screw 15. By (15) it is to adjust the input amount of aggregate injected into the tube (14).

Therefore, as shown in FIG. 4A, the resin supply device 30 and the curing agent supply device 20 are simultaneously introduced into the inner wall of the mold 2, 2 ′, thereby curing the unsaturated polyester resin and the curing agent for curing the corresponding resin. It is.

The resin and the curing agent added in this way are mixed in the air while being injected and adhered to the inner wall of the mold 2, 2 '. The centrifugal force due to the rotation of the mold 2, 2' and the forward action of the raw material supply device An outer resin layer 5 having an even thickness is formed on the inner wall of the mold 2, 2 ′.

Since the outer resin layer 5 is formed, the glass fiber discharged from the glass fiber reservoir 41 is coated on the outer resin layer 5 before the outer resin layer 5 is cured as shown in FIG. 4B. Since the glass fiber coated on the surface of the outer resin layer 5 is higher than the specific gravity of the resin, the glass fiber coated by the rotation centrifugal force of the mold 2, 2 'is impregnated in the outer resin layer 5 together with the resin. The outer glass fiber layer 6 in a mixed state will be formed.

In addition, when the aggregate having a diameter of 5 to 10 mm is introduced into the outer glass fiber layer 6 as shown in FIG. 4C, the aggregate is injected under centrifugal force by the molds 2 and 2 'that are continuously rotated before curing. The voids between the aggregates are pushed out to the outer glass fiber layer 6 and are finely compressed and impregnated with the resin mixed in the outer glass fiber layer 6 to form the aggregate layer 7 in the resin-impregnated state.

In this state, when the same resin and hardener are introduced into the aggregate layer 7 as in the first resin input process described above in the aggregate layer 7 as shown in FIG. 4D, the gap between the aggregates formed on the aggregate layer 7 is formed. The resin is impregnated and the interior of the aggregate layer 7 is in a state where the resin is completely filled.

In addition, when the glass fiber is applied to the inner resin layer 9 formed on the aggregate layer 7 by the glass fiber supply device 40, as shown in FIG. The inner resin layer 9 remaining after the glass fiber is impregnated with the glass fiber is impregnated into the inner glass fiber layer 8 while forming an inner glass fiber layer 8 impregnated therein and eventually mixed and stacked on top of the aggregate layer 7. This is to be formed.

After each mixing layer is formed in this way, if a certain period of time has elapsed and all the resin layers are completely cured, the resin concrete tube is completed by separating and removing the external molds 2 and 2 '.

The resin concrete tube thus completed has a smooth surface on the inner and outer surfaces by the outer resin layer 5 and the inner resin layer 9, while the inner glass fiber layer 6 is formed before and after the aggregate layer 7 therein. ) And the inner glass fiber layer 8 is a resin concrete tube having a strong and high mechanical properties is completed.

In addition, in the above description of the first glass fiber impregnation process, only the glass fiber is coated, but the unsaturated polyester resin and the resin curing agent are simultaneously added together with the glass fiber to the outer resin layer 5 and the outer glass fiber layer 6. At the same time, the work process can be changed to double the impregnation effect of glass fiber.

Similarly, in the secondary glass fiber impregnation step, the unsaturated polyester resin and the resin curing agent are simultaneously added together with the glass fiber to make the impregnation effect of the glass fiber more secure.

In addition, when the strength and hardness of the resin concrete pipe are not required, the primary resin input process and the aggregate compression process are not performed without performing the primary glass fiber impregnation process and the secondary glass fiber impregnation process in each of the aforementioned processes. Only the impregnation process and the secondary resin injection process can be performed to complete the mixed resin concrete pipe in which resin is formed before and after the aggregate, thereby expanding its use range.

As described above, the apparatus for producing a resin concrete tube using the centrifugal force of the present invention can obtain a resin concrete tube having mechanical properties of high hardness and high strength by using glass fibers and aggregates inside the cross section while having smooth inner and outer surfaces. Since the curing agent and the resin are discharged by each supply device, there is no problem that the discharge port is blocked by the cured resin to the resin or the supply device for inputting each raw material. Unsaturated resin provided has a uniform molding time and has the effect of evenly mixing and impregnating other materials to obtain a high quality resin concrete tube.

Claims (3)

In the manufacturing apparatus of a conventional resin concrete pipe comprising a raw material supply device, a splittable mold, a roller for rotating the electric mold and a drive motor, Raw material feeder, An aggregate supply device 10 receiving aggregate from the aggregate supply hopper 11 and discharging it by the transport device 12; A hardener supply device 20 in which a hardener is filled in the hardener tank 21 and the hardener is discharged through the injection nozzle 24 along the supply pipe 23 by the pressure pump 22; The resin supply apparatus 30 which is filled with unsaturated polyester resin in the thermostat tank 31 which maintains a constant temperature, and the resin is discharged | emitted through the injection nozzle 34 along the supply pipe 33 by the pressure-feed pump 32, The glass fiber feeder 40 is provided separately from the glass fiber reservoir 41 is embedded with irregular glass fiber is discharged from the discharge port 43 passing through the supply pipe 42, respectively, A device for manufacturing a resin concrete pipe using centrifugal force, characterized in that each of the above-mentioned raw material supply devices is mounted in a transfer device (1) capable of moving forward and backward. The apparatus for manufacturing a resin concrete tube using centrifugal force according to claim 1, characterized in that the conveying device (12) of the aggregate supply device (10) is formed of a conveyor belt (13) equipped with a drive motor (16). According to claim 1, wherein the conveying device (15) of the aggregate supply device 10 has a conveying screw 15 in the interior of the tubular body 14 so that the conveying screw 15 is rotated by the drive motor (16). Apparatus for producing a resin concrete tube using a centrifugal force characterized in that.