Vacuum filling mold for ultra-high performance concrete honeycomb calandria

Abstract

The utility model relates to the technical field of ultra-high performance concrete vacuum infusion forming, in particular to an ultra-high performance concrete honeycomb calandria vacuum infusion mold which comprises a feeding device, the feeding device is fixedly installed on a honeycomb pipe mold, and a vacuumizing pipe is fixedly installed at the end, away from the feeding device, of the honeycomb pipe mold. The feeding device comprises a feeding hopper and a connecting pipe, one end of the connecting pipe is fixedly connected with the honeycomb pipe mold, a valve body is fixedly installed on the outer side of the valve element, and a valve switch handle is rotatably installed at one end of the valve body. According to the utility model, ultra-high performance concrete slurry is added into the feeding hopper, then the interior of the honeycomb tube mold is vacuumized, after negative pressure is achieved, the valve core is opened to inject the ultra-high performance concrete slurry into the mold through the feeding hole, and the injection amount of the ultra-high performance concrete slurry can be effectively controlled by controlling the opening and closing of the valve core; the product strength is not reduced due to insufficient ultra-high performance concrete slurry, and the product quality is not influenced by the defects of cavities, layering and the like of the product.

Description

Technical Field

[0001] The utility model relates to the technical field of ultra-high performance concrete vacuum infusion molding, in particular to an ultra-high performance concrete honeycomb row pipe vacuum infusion mold. Background Art

[0002] Ultra-High Performance Concrete, referred to as UHPC (Ultra-High Performance Concrete), is the most innovative cement-based engineering material in the past three decades, achieving a major leap in the performance of engineering materials. It has ultra-high durability and ultra-high mechanical properties, so it is widely used in the engineering construction industry. The construction using ultra-high performance concrete as raw material is generally cast by vacuum infusion. This process makes the product cavity in a negative pressure state by vacuuming, and uses the pressure difference between atmospheric pressure and cavity negative pressure to press the ultra-high performance concrete slurry into the product cavity to achieve the purpose of infusing the mold.

[0003] The currently available vacuum infusion mold, such as "Vacuum Infusion Molding Mold" (publication number: CN 207465924 U), includes a lower concave mold and an upper convex mold. The upper convex mold includes a mold body, which is made of silicone material. A sealing groove is arranged around the outer edge of the lower surface of the mold body, and a grouting port and an exhaust port are arranged on the mold body; a sealing protrusion is arranged around the edge of the upper surface of the lower concave mold and at a position corresponding to the sealing groove; after the upper convex mold and the lower concave mold are closed, a gap exists between the two, and the grouting port and the exhaust port are respectively connected to the gap.

[0004] Based on the search of the above patents and combined with the equipment in the prior art, it was found that the vacuum mold injects materials through the grouting holes, and there is no guarantee whether the material is sufficiently injected. As a result, the product will not be able to be injected due to insufficient material injection. At the same time, air will be mixed in during the pouring to form voids, resulting in reduced product strength and defects such as stratification, which will affect the quality of the product, waste time and labor, and increase costs. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide an ultra-high performance concrete honeycomb pipe vacuum infusion mold to solve the problems of bubbles and blocked flow channels during the pouring of ultra-high performance concrete.

[0006] Based on the above purpose, the utility model provides an ultra-high performance concrete honeycomb pipe vacuum infusion mold, including: a feeding device, the feeding device is fixedly installed on the honeycomb pipe mold, a vacuum pump is fixedly installed on one end of the honeycomb pipe mold away from the feeding device, and a vacuum pump is fixedly installed on a section of the vacuum pump away from the honeycomb pipe mold;

[0007] The feeding device includes a feeding hopper and a connecting pipe, one end of the connecting pipe is fixedly connected to the honeycomb tube mold, a valve core is rotatably installed inside the upper end of the connecting pipe, a valve body is fixedly installed on the outer side of the valve core, a valve switch handle is rotatably installed on one end of the valve body, the valve switch handle is fixedly connected to the valve core, and the feeding hopper is fixedly connected to one end of the connecting pipe away from the honeycomb tube mold.

[0008] As an optional embodiment, the honeycomb tube mold includes an upper shaping mold, a vacuum filtering device is fixedly installed at one end above the upper shaping mold, and a feed hole is fixedly installed at one end above the upper shaping mold away from the vacuum filtering device.

[0009] As an optional implementation, a lower shaping mold is fixedly provided at the lower end of the upper shaping mold, the lower shaping mold corresponds to the upper shaping mold, and a left shaping mold is fixedly installed on one side of the lower shaping mold.

[0010] As an optional embodiment, a right shaping mold is fixedly installed on the side of the lower shaping mold away from the left shaping mold, the right shaping mold corresponds to the left shaping mold, and the right shaping mold and the left shaping mold are respectively fixedly installed on both sides of the upper shaping mold.

[0011] As an optional implementation, a mold core is fixedly installed inside the mold cavity formed by the lower molding mold, the right molding mold, the left molding mold and the upper molding mold.

[0012] As an optional implementation, the vacuum pump includes a vacuum pump base and an impeller, the impeller is fixedly mounted on the upper end of the vacuum pump base, and the vacuum pump 2 is fixedly mounted on the impeller.

[0013] As an optional implementation, a vacuum port is fixedly installed at the lower ends of the vacuum pump on the impeller, an exhaust port is fixedly installed on one side of the vacuum port, and the exhaust port is fixedly connected to one end of the vacuum pipe.

[0014] Beneficial effects of the utility model:

[0015] 1. During operation, add ultra-high performance concrete slurry into the hopper, and always keep the slurry inside the hopper not less than half of the hopper's capacity. Start the vacuum pump and evacuate the inside of the honeycomb tube mold through the vacuum tube. When the inside of the honeycomb tube mold reaches a certain negative pressure, move the valve switch handle to open the valve core, and the ultra-high performance concrete slurry inside the hopper is injected into the mold through the feed hole. Due to the vacuum treatment, the product is dense and not prone to cavities. The raw material is ultra-high performance concrete, and the grade is improved, thereby improving the quality. Vacuuming can also remove excess water, further reduce the water-cement ratio, and further improve the concrete grade. Through vacuuming, the product strength is increased by more than 15%; due to vacuuming, the generation of product cracks is avoided, and the product stability is guaranteed.

[0016] 2. Because the vacuum makes the mold under negative pressure, the concrete can quickly fill every corner of the product, and the vacuum filter device can ensure that the excess water bubbles are extracted while preventing the slurry from being extracted from the honeycomb tube mold. This vacuum pouring process is 30% faster than the previous open self-flowing vibration pouring. The original pouring in 5 minutes can be completed in 3 minutes through vacuum; at the same time, because it is a closed pouring, it reduces the manual finishing of open pouring, improves production efficiency and reduces labor costs.

[0017] 3. Products cast through closed molds have good consistency, beautiful and smooth appearance, can improve the degree of product standardization, have 100% no cracks, improve appearance quality and ensure product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is an overall schematic diagram of the vacuum infusion mold of the utility model embodiment;

[0020] Figure 2 This is a schematic diagram of the structure of the vacuum equipment of the utility model embodiment;

[0021] Figure 3 This is a schematic cross-sectional view of a feeding device according to an embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the vacuum mold structure of an embodiment of the utility model.

[0023] The markings in the figure are:

[0024] 1. Vacuum pump; 2. Feeding device; 3. Honeycomb tube mold; 4. Vacuum tube; 100. Impeller; 101. Vacuum pump 2; 102. Vacuum port; 103. Exhaust port; 104. Vacuum pump base; 201. Feeding hopper; 202. Valve switch handle; 203. Valve core; 204. Valve body; 205. Connecting pipe; 301. Lower shaping mold; 302. Mold core; 303. Right shaping mold; 304. Left shaping mold; 305. Upper shaping mold; 306. Vacuum filtration device; 307. Feed hole. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0026] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] like Figure 1-Figure 4As shown, an ultra-high performance concrete honeycomb pipe vacuum infusion mold comprises: a feeding device 2, the feeding device 2 is fixedly mounted on a honeycomb pipe mold 3, a vacuum pump 4 is fixedly mounted on one end of the honeycomb pipe mold 3 away from the feeding device 2, and a vacuum pump 1 is fixedly mounted on the vacuum pump 4 away from the honeycomb pipe mold 3; the feeding device 2 comprises a feeding hopper 201 and a connecting pipe 205, one end of the connecting pipe 205 is fixedly connected to the honeycomb pipe mold 3, and a valve core 203 is rotatably mounted inside the upper end of the connecting pipe 205, A valve body 204 is fixedly installed on the outside of the valve core 203, and a valve switch handle 202 is rotatably installed on one end of the valve body 204. The valve switch handle 202 is fixedly connected to the valve core 203, and a charging hopper 201 is fixedly connected to the end of the connecting pipe 205 away from the honeycomb tube mold 3; the vacuum pump 1 includes a vacuum pump base 104 and an impeller 100, and an impeller 100 is fixedly installed on the upper end of the vacuum pump base 104, and a vacuum pump 101 is fixedly installed on the impeller 100, and a vacuum pump 201 is fixedly installed on the impeller 100. A vacuum port 102 is fixedly installed at the lower end of 101, an exhaust port 103 is fixedly installed on one side of the vacuum port 102, and the exhaust port 103 is fixedly connected to one end of the vacuum tube 4; the honeycomb tube mold 3 includes an upper shaping mold 305, a vacuum filtering device 306 is fixedly installed at one end above the upper shaping mold 305, a feed hole 307 is fixedly installed at one end above the upper shaping mold 305 away from the vacuum filtering device 306, a lower shaping mold 301 is fixedly arranged at the lower end of the upper shaping mold 305, and the lower shaping mold 301 is fixedly connected to the upper shaping mold 305. The upper shaping mold 305 corresponds to the lower shaping mold 301, and a left shaping mold 304 is fixedly installed on one side of the lower shaping mold 301. The right shaping mold 303 is fixedly installed on the side of the lower shaping mold 301 away from the left shaping mold 304. The right shaping mold 303 corresponds to the left shaping mold 304. The right shaping mold 303 and the left shaping mold 304 are respectively fixedly installed on both sides of the upper shaping mold 305. The lower shaping mold 301, the right shaping mold 303, the left shaping mold 304 and the upper shaping mold 305 form a mold cavity in which a mold core 302 is fixedly installed.

[0028] In this way, the ultra-high performance concrete slurry is added to the inside of the feeding hopper 201, and the slurry inside the feeding hopper 201 is always kept not less than half of the hopper's capacity, and the vacuum pump 101 is started to evacuate the inside of the honeycomb tube mold 3 through the vacuum tube 4. When the inside of the honeycomb tube mold 3 reaches a certain negative pressure, the valve switch handle 202 is moved to open the valve core 203, so that the ultra-high performance concrete slurry inside the feeding hopper 201 is injected into the mold through the feed hole 307. After the valve core 203 is opened, the slurry in the upper hopper isolates the air, so it can still effectively ensure that the internal space of the honeycomb tube mold 3 is always in a vacuum state, thereby preventing air from mixing into and forming a cavity. At the same time, the feeding device 2 can adjust the pressure according to the opening of the valve core 203. The vacuum pump 1 can effectively control the injection amount of the ultra-high performance concrete slurry, and will not cause product defects due to insufficient ultra-high performance concrete slurry. The vacuum pump 1 will continuously extract the air in the honeycomb tube mold 3, and the vacuum extraction volume of the vacuum pump (1) is greater than 400 cubic meters / minute. When the injection material is fully flowing and filled in the honeycomb tube mold 3, the vacuum filtering device 306 can ensure that the excess water bubbles are extracted while preventing the slurry from being extracted from the honeycomb tube mold 3. When the honeycomb tube mold 3 is filled in place, the vacuum pump 1 is turned off and waits for the injection material in the honeycomb tube mold 3 to solidify. Then, the lower molding mold 301, the right molding mold 303, the left molding mold 304, and the upper molding mold 305 can be removed to take out the formed honeycomb structure.

[0029] A person skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments may also be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. An ultra-high performance concrete honeycomb pipe vacuum infusion mold, comprising: The feeding device (2) is characterized in that the feeding device (2) is fixedly mounted on the honeycomb tube mold (3); a vacuum pump (4) is fixedly mounted on one end of the honeycomb tube mold (3) away from the feeding device (2); and a vacuum pump (1) is fixedly mounted on a section of the vacuum pump (4) away from the honeycomb tube mold (3); The feeding device (2) comprises a feeding hopper (201) and a connecting pipe (205), one end of the connecting pipe (205) being fixedly connected to the honeycomb tube mold (3), a valve core (203) being rotatably mounted inside the upper end of the connecting pipe (205), a valve body (204) being fixedly mounted outside the valve core (203), a valve switch handle (202) being rotatably mounted on one end of the valve body (204), the valve switch handle (202) being fixedly connected to the valve core (203), and the feeding hopper (201) being fixedly connected to one end of the connecting pipe (205) away from the honeycomb tube mold (3).

2. The ultra-high performance concrete honeycomb pipe vacuum infusion mold according to claim 1, characterized in that: The honeycomb tube mould (3) comprises an upper shaping mould (305), a vacuum filtering device (306) being fixedly mounted on one end above the upper shaping mould (305), and a feed hole (307) being fixedly mounted on one end above the upper shaping mould (305) away from the vacuum filtering device (306).

3. The ultra-high performance concrete honeycomb pipe vacuum infusion mold according to claim 2, characterized in that: A lower shaping mold (301) is fixedly arranged at the lower end of the upper shaping mold (305), the lower shaping mold (301) corresponds to the upper shaping mold (305), and a left shaping mold (304) is fixedly installed on one side of the lower shaping mold (301).

4. The ultra-high performance concrete honeycomb pipe vacuum infusion mold according to claim 3, characterized in that: A right shaping mold (303) is fixedly mounted on a side of the lower shaping mold (301) away from the left shaping mold (304); the right shaping mold (303) corresponds to the left shaping mold (304); and the right shaping mold (303) and the left shaping mold (304) are respectively fixedly mounted on two sides of the upper shaping mold (305).

5. The ultra-high performance concrete honeycomb pipe vacuum infusion mold according to claim 4, characterized in that: The lower shaping mold (301), the right shaping mold (303), the left shaping mold (304) and the upper shaping mold (305) form a mold cavity in which a mold core (302) is fixedly installed.

6. The ultra-high performance concrete honeycomb pipe vacuum infusion mold according to claim 1, characterized in that: The vacuum pump (1) comprises a vacuum pump base (104) and an impeller (100); the impeller (100) is fixedly mounted on the upper end of the vacuum pump base (104); and a second vacuum pump (101) is fixedly mounted on the impeller (100).

7. The ultra-high performance concrete honeycomb pipe vacuum infusion mold according to claim 6, characterized in that: A vacuum port (102) is fixedly mounted on the lower end of the vacuum pump (101) on the impeller (100), an exhaust port (103) is fixedly mounted on one side of the vacuum port (102), and the exhaust port (103) is fixedly connected to one end of the vacuum pipe (4).

8. The ultra-high performance concrete honeycomb pipe vacuum infusion mold according to claim 6, characterized in that: The vacuum pump (1) has a vacuum suction capacity of greater than 400 cubic meters per minute.

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