阅读说明：本技术 一种混凝土材料自修复胶囊制作装置及方法 (Device and method for manufacturing self-repairing capsules of concrete materials ) 是由 曹瑞东 刘宏 郑思佳 于 2019-11-01 设计创作，主要内容包括：一种混凝土材料自修复胶囊制作装置及方法,属于建筑领域,用于修复产生裂缝的混凝土材料,混凝土材料自修复胶囊制作模具包括切割装置、升降装置、底座、金属盒子,升降装置与切割装置连接,金属盒子设置在底座上,切割装置设置在金属盒子内。本发明的混凝土材料自修复胶囊对产生裂纹和损伤的混凝土结构进行自行修复,恢复其强度及耐久性,使混凝土结构重新具备使用功能,具有很好的经济和社会效益。(A device and a method for manufacturing a concrete material self-repairing capsule belong to the field of buildings and are used for repairing concrete materials with cracks. The self-repairing capsule of the concrete material can automatically repair the concrete structure which generates cracks and damages, and recover the strength and durability of the concrete structure, so that the concrete structure has the using function again, and the self-repairing capsule of the concrete material has good economic and social benefits.)

1. A device for manufacturing a concrete material self-repairing capsule is characterized by comprising a cutting device, a lifting device, a base, a metal box, a sodium silicate mould and an epoxy resin sheet mould, wherein the lifting device is connected with the cutting device;

the cutting device consists of a cuboid column group and a cutting grid; the cutting grids are arranged in the metal box, rectangular columns are arranged in each grid of the cutting grids, the tops of the rectangular columns are connected with a metal plate, and the metal plates are connected with the cylindrical barrel of the lifting device through connecting rods;

the lifting device comprises a motor, a gear, a rack and a guide rail, a metal sheet is arranged in the inner cavity of the cylindrical barrel, the rack and the motor are mounted on the metal sheet, a rotating shaft of the motor is connected with the gear, and the rack is meshed with the gear; the guide rail is fixed on the metal plate; the guide rail consists of a supporting guide rail, wheels, a flat plate and a protective edge, the wheels are fixed at the slide way on the guide rail by nuts and bolts, and the racks are fixed on the flat plate;

the sodium silicate mould consists of a plurality of cylinders, round slices, cross rods and long rods, wherein the round slices are inserted into the cylinders, every row of adjacent round slices are connected through the cross rods, and the cross rods positioned at the rightmost ends are connected through one long rod;

the epoxy resin piece mould comprises hypoplastron, 4 risers, and 4 risers are consecutive end to end and constitute closed quadrangle frame, and adjacent riser becomes mortise and tenon connection, and the hypoplastron sets up a plurality of spacing posts, and the quadrangle frame is fixed a position to spacing post.

2. The mold for manufacturing the self-repairing capsules of concrete materials of claim 1, wherein the cutting grids are connected with the racks through Z-shaped connecting rods.

3. The mold for manufacturing the self-repairing capsules of concrete materials as claimed in claim 1, wherein the metal box is a pentahedral box, and a fine slit of 2cm x 0.5cm is arranged in the middle of one side surface of the metal box.

4. The mold for manufacturing the self-repairing capsules of concrete materials of claim 1, wherein the height of the cylinder is 12cm, and the lower part of the cylinder is provided with a notch groove with the length of 6cm and the width of 0.5 cm.

5. A method for manufacturing a concrete material self-repairing capsule is characterized by comprising the following steps:

(1) laying a layer of release paper in two epoxy resin sheet moulds according to claim 1; and (3) mixing an epoxy resin: curing agent = 1: 0.75, uniformly mixing, equivalently placing the mixture into two epoxy resin sheet molds, and drying the epoxy resin sheet molds in a drying oven at the temperature of 90 ℃ for 12 minutes;

(2) sealing the sodium silicate mold, spraying sodium silicate powder on the sodium silicate mold, taking out the box, and placing the sodium silicate mold on the epoxy resin in the first box;

(3) opening the seal of the sodium silicate mold to enable the sodium silicate to fall on the epoxy resin;

(4) disassembling the four walls of the second epoxy resin sheet mould for placing the epoxy resin;

(5) the epoxy resin sheet mould with the four walls removed is reversely buckled on a first epoxy resin sheet mould, so that the epoxy resin and the release paper fall into the first epoxy resin sheet mould to form sandwich epoxy resin with sodium silicate sandwiched between an upper layer of epoxy resin and a lower layer of epoxy resin;

(6) and (3) putting the sandwich epoxy resin into an oven to be dried until the sandwich epoxy resin is completely cured, taking out the sandwich epoxy resin, and removing the upper and lower layers of release paper to prepare the concrete material self-repairing capsule with the outer skin made of the epoxy resin and the inner core made of sodium silicate.

Background

The concrete material has the characteristics of moldability, integrity, good durability and the like, so that the concrete is the most widely applied building material in the world at present. However, cracks are generated in the concrete due to various reasons such as temperature stress, concrete shrinkage and curing conditions, and the generation of the cracks also reduces the protection of the concrete on the reinforcing steel bars, so that the damage is accelerated, and the service life of the concrete is greatly shortened. At present, a method for effectively repairing concrete cracks is to mix self-repairing microcapsules taking sodium silicate as a repairing agent into a concrete structure. This approach was taken in a paper published by the teacher in Jiangshi Yang for the study of the prediction of the after-repair life of self-repairing concrete incorporating sodium silicate repair agents and the optimum amount of the repair agent incorporated. However, the process of making the microcapsules is complicated, time consuming and inefficient.

Disclosure of Invention

In view of the above problem, the invention provides a device for manufacturing microcapsules, which greatly reduces manpower, can realize batch production and improves efficiency.

The technical scheme of the invention is as follows:

a self-repairing capsule of concrete material is characterized in that the outer skin is made of epoxy resin wrapping the inner core of sodium silicate.

A device for manufacturing a concrete material self-repairing capsule is characterized by comprising a cutting device, a lifting device, a base, a metal box, a sodium silicate mould and an epoxy resin sheet mould, wherein the lifting device is connected with the cutting device;

the cutting device consists of a cuboid column group and a cutting grid; the cutting grids are arranged in the metal box, rectangular columns are arranged in the grids of the cutting grids, the tops of the rectangular columns are connected with a metal connecting plate, and the cylindrical cylinders are connected with the metal connecting plate through connecting rods; the lifting device comprises a cylindrical barrel and a guide rail, a metal sheet is arranged in an inner cavity of the cylindrical barrel, a rack and a motor are mounted on the metal sheet, a rotating shaft of the motor is connected with a gear, and the rack is meshed with the gear; the guide rail is fixed on the metal plate through screws; the guide rail consists of a supporting guide rail, wheels, a flat plate and a protective edge, the wheels are fixed at the slide way on the guide rail through nuts and bolts, so that the wheels can slide up and down along the slide way, and the rack is fixed on the flat plate through screw holes on the flat plate through screws, so that the rack can slide up and down along the guide rail.

The cutting grids are connected with the racks through Z-shaped connecting rods. Each of the cut grids has a side length of 2 mm.

The metal box is a pentahedral box, and a fine seam of 2cm multiplied by 0.5cm is arranged in the middle of one side surface of the metal box.

The height of the cylinder is 12cm, and a thin slit with the width of 0.5cm is reserved at the part of 0-6 cm from the bottom to the top on the right side of the cylinder.

The sodium silicate mold is independent and consists of a cylinder and a circular plate, the cylinder is provided with an insertion slot, and the circular plate is arranged in the insertion slot; the plurality of circular plates are connected together through the pull rod and can act simultaneously; the cylinder diameter is 1 mm.

A method for manufacturing a concrete material self-repairing capsule is characterized by comprising the following steps:

(1) laying a layer of release paper in the two epoxy resin sheet molds; and (3) mixing an epoxy resin: curing agent = 1: 0.75, uniformly mixing, equivalently placing the mixture into two epoxy resin sheet molds, and drying the epoxy resin sheet molds in an oven at the temperature of 90 ℃ for 12 minutes;

(2) sprinkling sodium silicate powder on a sodium silicate mold, then taking out the box and placing the sodium silicate mold on the epoxy resin of the first epoxy resin sheet mold;

(3) opening the seal of the sodium silicate mold to enable the sodium silicate to fall on the epoxy resin;

(4) disassembling the four walls of the second epoxy resin sheet mould for placing the epoxy resin;

(5) the epoxy resin sheet mould with the four walls removed is reversely buckled on a first epoxy resin sheet mould, so that the epoxy resin and the release paper fall into the first epoxy resin sheet mould to form sandwich epoxy resin with sodium silicate sandwiched between an upper layer of epoxy resin and a lower layer of epoxy resin;

(6) and (3) putting the sandwich epoxy resin into an oven to be dried until the sandwich epoxy resin is completely cured, taking out the sandwich epoxy resin, and removing the upper and lower layers of release paper to prepare the concrete material self-repairing capsule with the outer skin made of the epoxy resin and the inner core made of sodium silicate.

The invention has the beneficial effects that: the self-repairing capsule of the concrete material can automatically repair a concrete structure which is cracked and damaged after a fire disaster, recover the strength and the durability of the concrete structure, enable the concrete structure to have a use function again, and have good economic and social benefits.

Drawings

Fig. 1 is a structural view of a cutting apparatus of the present invention.

FIG. 2 is a structural view of a mold for preparing an epoxy resin sheet according to the present invention.

Fig. 3 is a structural view of a sodium silicate mold according to the present invention.

Fig. 4 is a left side view of fig. 3.

FIG. 5 is a structural view of a rectangular parallelepiped pillar set in the present invention.

Fig. 6 is a structural view of a single rectangular parallelepiped pillar in fig. 5.

Fig. 7 is a structural view of a metal case of the cutting apparatus of the present invention.

Fig. 8 is an external view of the lifting device of the present invention.

Fig. 9 is an internal structure view of the elevating device of the present invention.

Fig. 10 is a structural view of a guide rail in the present invention.

Fig. 11 is a structural view of the motor.

Fig. 12 is a structural view of the Z link.

In the figure, 1, a base, 2, a metal box, 3, a cutting grid, 4, a cuboid column group, 5, a cylindrical barrel, 6, a connecting rod, 7, a limiting column, 8, a groove, 9, a convex rib, 10, a vertical plate, 11, a bottom plate, 12, a sodium silicate mold, 13, a connecting plate, 14, a cylindrical barrel, 15, a circular sheet, 16, a cross rod, 17, a long rod, 18, a cuboid column, 19, a slit, 20, a metal plate, 21, a notch groove, 22, a rack, 23, a screw, 24, a welding point, 25, a guide rail, 26, a gear, 27, a gear mounting hole, 28, a supporting guide rail, 29, a flat plate, 30, a hole, 31, a wheel, 32, a nut, 33, a bolt, 34, a protective edge, 35, a motor, 36, a rotating shaft, 37 and a Z-shaped connecting rod.

Detailed Description

The present invention will be described in more detail below with reference to the accompanying drawings.

A device for manufacturing a concrete material self-repairing capsule is characterized by comprising a cutting device, a lifting device, a base, a metal box, a sodium silicate mould and an epoxy resin sheet mould, wherein the lifting device is connected with the cutting device;

the sodium silicate die and the epoxy resin sheet die are independent parts.

As shown in fig. 2, the epoxy resin sheet mold is composed of a lower plate 11 and 4 vertical plates 10, wherein the 4 vertical plates 10 are sequentially connected end to form a closed quadrilateral frame, adjacent vertical plates are in mortise-tenon connection, the lower plate 11 is provided with a plurality of limiting columns 7, and the quadrilateral frame is positioned by the limiting columns 7.

As shown in fig. 3 and 4, the sodium silicate mold is provided with a plurality of cylinders 14, round thin slices 15, cross bars 16 and long rods 17, the round thin slices are inserted into the cylinders, adjacent round thin slices in each row are connected through the cross bars 16, the cross bars 16 positioned at the rightmost end are connected through the long rods 17, and the metal sheets can be opened only by shifting the cross bars rightmost.

The cutting device comprises a base 1, a metal box 2, a cutting grid 3, a cuboid column group 4 and a cylindrical barrel 5. All the rectangular parallelepiped posts are fixed to the metal plate 13. A metal plate 20 is arranged in the cylinder 5, a guide rail 25 is fixed on the metal plate 20 through screws, the guide rail 25 is composed of a supporting guide rail 28, a wheel 31, a flat plate 29 and a protective edge 34, the wheel 31 is fixed through a nut 32 and a bolt 33, and a rack 22 is fixed on the flat plate 29 through 4 screw holes 30 on the flat plate through screws 23, so that the rack can slide up and down along the guide rail. The shaft 36 of the motor 35 is fixed to the recess 27 of the gear 26 through the hole of the metal plate 20, so that the motor can drive the gear to rotate. The gear and the rack are contacted with each other, so that the rack can be driven to slide up and down when the gear rotates. One end of the Z-shaped connecting rod 37 is welded at the welding point 29 of the metal plate 20, and the other end is welded at the middle part of the side surface of the cutting grid 3, so that the rack can drive the cutting grid to move up and down.

The long end of the L-shaped connecting rod 6 is welded at the welding point 40 on the column, and the short end is welded at the axle center of the connecting plate 13, so that the cuboid column group 4 is kept fixed.

The cutting grid 3 comprises a metal frame with a long edge of 10cm, a short edge of 8cm and a height of 2cm, wherein the upper bottom and the lower bottom of the metal frame are not sealed, and a metal sheet with the height of 2cm is uniformly divided into 2000 small square grids with the side length of 2mm inside the metal frame to form a large grid.

2000 rectangular columns 22 shown in figure 6, which are just as large as the square small lattices and are 2cm long, and the periphery of each column is tightly attached to the inner wall of the lattices. The position of each rectangular column corresponds to the position of each grid one by one, and square faces with the side length of 2mm of all the columns are fixed on the same metal sheet.

As shown in figure 7, the long side of the metal box 2 is slightly larger than 10cm, the short side is slightly larger than 8cm and 2cm high, when the cutting grid 3 is put into the box, the cutting grid just clings to the inner wall of the box, and the lower bottom of the box is sealed. A2 cm by 0.5cm vertical slit is arranged in the middle of one 10cm by 2cm side surface.

As shown in FIG. 8, the height of the metal cylinder is 12cm, and a thin slit 23 with the width of 0.5cm is reserved at the part of 0-6 cm from the bottom to the top on the right side of the cylinder. The metal plate 20 is connected with the inner wall of the metal cylinder from top to bottom, left and right, the rack is connected with the metal plate through a guide rail, so that the rack can only move up and down, the length of the guide rail is 6cm, and the guide rail is fixed at the position of the metal plate from bottom to top, which is 0-6 cm; the gear and a motor are both fixed on the metal plate 20, so that the gear can only rotate and the distance between the circle center of the gear and the bottom of the cylinder is 4 cm.

When the motor is started, the rotation of the gear can drive the rack to move up and down. One end of a Z-shaped connecting rod 37 with the diameter smaller than 0.5cm is welded at the lower end of the rack, the other end of the Z-shaped connecting rod passes through the thin seam of the cylindrical barrel to be welded with the grid, and the distance between the center of the Z-shaped connecting rod 37 and the lowest end of the rack and the height between the center of the Z-shaped connecting rod 37 and the lowest end of the grid are both.

The long end of the L-shaped connecting rod 6 is welded with the cylinder 5, and the short end is welded with the metal plate 13. The pre-start state is that the cuboid posts are just inserted into the grid. The metal box is arranged on the base 1 opposite to the grids, so that the grids can just enter the metal box when coming down.

The preparation method of the concrete material self-repairing capsule comprises the following steps: putting two weighed equal parts of epoxy resin curing agent mixture into two epoxy resin molds shown in figure 2 (laying release paper in the epoxy resin molds in advance to facilitate the epoxy resin to be cured and then taking down), putting the two epoxy resin molds into an oven to be dried for 90 degrees, and taking out after 12 minutes.

Sodium silicate is placed in the cylinders 18 of the sodium silicate mould shown in figure 4, the sodium silicate mould is placed in the first epoxy mould, the cross bar 17 is moved to the right, the circular sheet 15 opens and the sodium silicate in each cylinder 14 falls onto the epoxy. Then, the four vertical plates 10 of the second epoxy resin mold are disassembled, the epoxy resin sheets in the second epoxy resin mold are placed into the first epoxy resin mold containing sodium silicate, so that the two epoxy resin sheets clamp the sodium silicate, and then the two epoxy resin sheets are placed into a baking oven to be baked until the two epoxy resin sheets are completely baked.

Placing a plurality of dried epoxy resin sheets into a metal box 2 shown in fig. 7, starting a motor, driving a gear 26 to rotate by a motor 35, driving a cutting grid 3 connected with a rack 22 to move downwards by the rotation of the gear, cutting the epoxy resin sheets in the metal box 2 into square small pieces with the side length of two millimeters, then driving the cutting grid 3 to move upwards by the reverse rotation of the motor, moving to a cuboid column structure shown in fig. 6, and ejecting the residual epoxy resin sheets in the cutting grid down by the cuboid column to obtain the required self-repairing microcapsule.

The epoxy resin curing agent mixture is an epoxy resin: curing agent = 1: 0.75, and mixing uniformly.