A method and apparatus for the compression moulding of ultra high performance concrete pontoon

Abstract

The application provides a kind of ultra-high performance concrete ship-shaped floating body pressure injection forming method and device, comprising the following steps: S1, obtaining ship-shaped floating body data;S2, according to the design of forming inner mold and outer mold;S3, use inner mold and outer mold to cooperate and inject UHPC;S4, the UHPC of injection is cured, demoulding and curing to obtain floating body;S5, test the floating body;S6, test qualified, install device, and the floating body installed with device is put into water area for use.The application uses UHPC material, high compressive strength, strong impact resistance, long service life, far more than traditional plastic, metal, ordinary concrete buoy, superior performance;And through the accurate positioning structure of inner mold and outer mold and laser ranging sensor detection, the error of floating body wall thickness is low, and the dimensional accuracy is significantly better than that of traditional forming process;The internal partition is one-time formed through the partition gap of inner mold, and the structure has high integrity and good sealing.

Description

Technical Field

[0001] This invention relates to the field of buoy manufacturing technology, specifically to a method and apparatus for injection molding of ultra-high performance concrete boat-shaped floats. Background Technology

[0002] Surface buoys are core equipment in fields such as water environment monitoring and marine engineering. Their function is to float on the water surface, carrying water quality sensors, positioning modules, data transmission devices, etc., to achieve real-time monitoring of water parameters, navigation information, and the marine environment. Traditional buoys mainly use the following materials and manufacturing processes, but they have many drawbacks in practical applications: Plastic buoys are made of plastic materials such as polyethylene and polypropylene through blow molding or injection molding. They have the advantages of being lightweight and low cost, but they have problems such as insufficient strength and poor durability. For example, when exposed to sunlight, wind and waves, and water corrosion for a long time, they are prone to aging, cracking, and deformation, resulting in a short service life. In addition, plastic buoys have weak impact resistance.

[0003] Metal buoys are welded from metal materials such as steel and aluminum alloys, which are strong and impact-resistant. However, they have drawbacks such as being heavy, having a high water absorption rate, and being prone to corrosion. For example, when immersed in water for a long time, the metal surface is prone to rust and requires regular anti-corrosion treatment, resulting in high maintenance costs.

[0004] With the development of surface detection technology, the performance requirements for hull-shaped buoys are increasing.

[0005] Ultra-high performance concrete (UHPC) is a new type of building material with advantages such as high compressive strength (≥120MPa), good durability (water absorption ≤1%), and strong impact resistance (fracture energy ≥20kJ / m²), making it perfectly suited to the material requirements of hull-shaped buoys. However, current technologies have not proposed a solution for using UHPC in hull-shaped buoys, and existing methods and equipment also make it difficult to use UHPC to achieve precise molding of hull-shaped buoys, thus failing to guarantee the quality of the hull-shaped buoys. Summary of the Invention

[0006] The main objective of this invention is to provide a method and apparatus for injection molding of ultra-high performance concrete boat-shaped buoys, which solves the problem that the existing technology has not proposed a solution for using UHPC for boat-shaped buoys, and that the existing methods and equipment are also difficult to use UHPC to achieve accurate molding of boat-shaped buoys and cannot guarantee the quality of boat-shaped buoys.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A method for injection molding of ultra-high performance concrete ship-shaped floats includes the following steps: S1. Obtain data on the hull-shaped floating body; S2. Design and form the inner and outer molds based on the hull-shaped floating body data; S3. Use an inner mold and an outer mold to press-in UHPC; S4. The injected UHPC is solidified, demolded, and cured to obtain a float. S5. Conduct tests on the size, water absorption rate, buoyancy and sealing performance of the float; S6. If the test is successful, install the testing platform and equipment on the float and put the float equipped with the testing equipment into use in the water.

[0008] In the preferred embodiment, S3 includes: S31. Excavate and construct a pit with concrete, and set up an operating chamber inside the pit. The operating chamber is equipped with an external formwork installation structure. S32. Install the inner mold on the traveling trolley; Install the outer mold at the outer mold mounting structure; S33. The traveling trolley moves the installed inner mold to above the outer mold; S34. The inner mold moves downward, causing the inner mold to move into the outer mold; S35. Detect the distance between the inner mold and the outer mold; S36. The spacing test results do not meet the design standards. Adjust the positions of the inner mold and outer mold until they meet the design standards. The spacing test results meet the design standards; S37. Inject UHPC between the inner mold and the outer mold.

[0009] An ultra-high performance concrete boat-shaped float injection molding device is used for the ultra-high performance concrete boat-shaped float injection molding method. Includes a movable beam, which is connected to the traveling trolley; The movable beam is equipped with a connecting frame, and the connecting frame is equipped with an inner mold mounting frame for installing the inner mold; The outer mold is installed in the pit via an outer mold support frame, and the inner mold is adapted to the outer mold; A positioning ring is provided at the top of the outer side of the inner mold, and the bottom surface of the positioning ring is adapted to the top surface of the float. The inner top of the outer mold is provided with a positioning groove, which is adapted to the positioning ring.

[0010] In the preferred embodiment, the traveling trolley includes a trolley body, and a plurality of first electric hoists are provided on the top of the trolley body; The vehicle body is slidably connected to several lifting beams, and the hook end of the first electric hoist is connected to the lifting beams; Several crossbeams are provided between adjacent lifting beams, and several second electric hoists are provided on the crossbeams; The hook end of the second electric hoist is connected to the movable beam.

[0011] In the preferred embodiment, the interior of the float is provided with several partitions, and the interior of the float is separated by the partitions to form several cabins; The bottom of the inner mold has several slits, the width of which is adapted to the partitions inside the float.

[0012] In the preferred embodiment, the movable beam is provided with several mounting holes; The connecting frame includes a movable frame, and the top of the movable frame is provided with several connecting rings; the connecting rings are connected to the mounting holes through mounting rods; Several first hydraulic cylinders are provided at the bottom edge of the movable frame; Several tie rods are installed inside the pit, and the positions of the tie rods are adapted to the first hydraulic cylinder; The first hydraulic cylinder is set vertically, and both the bottom end of the first hydraulic cylinder and the top end of the tie rod are provided with mounting rings for connecting the first hydraulic cylinder and the tie rod. In the preferred embodiment, the mounting rod is a pin rod or a threaded rod; after the mounting rod is pulled out of the connecting ring and mounting hole, the movable frame separates from the movable beam; The movable beam is equipped with a pull rope; after the movable frame is separated from the movable beam, the pull rope is used to connect the float.

[0013] In the preferred embodiment, the outer mold support frame includes a base plate and two base frames, both of which are located within the pit. Two base frames are located at both ends of the outer mold, and the base plate is located at the bottom of the outer mold; Both the base frame and the base plate are equipped with pads on the side closest to the outer mold; The top of the base frame is equipped with vertical plates via several second hydraulic cylinders, and the vertical plates abut against the top of the outer mold; The bottom end of the vertical plate is equipped with a push plate via several third hydraulic cylinders, and the push plate abuts against the arc surface of the outer mold; The top of the base plate is hinged with several side plates, and several fourth hydraulic cylinders are provided between the side plates and the pit. The top of the base plate is equipped with a support pad, the top surface of which is curved and matches the curved surface of the bottom of the outer mold.

[0014] In a preferred embodiment, the inner mold mounting bracket includes a fixing bracket connected to the connecting bracket; The bottom of the fixed frame is equipped with several fixed rods; the bottom of the fixed frame is hinged with several movable arms; the movable arms are close to the inner wall side of the inner mold. A fifth hydraulic cylinder is installed between the bottom end of the movable arm and the fixed rod; The bottom of the fixed rod is equipped with a sixth hydraulic cylinder, which is vertically set and has a bottom rod at the bottom; The bottom rod is set horizontally, with its bottom close to the bottom of the inner wall of the inner mold; The bottom of the base rod is provided with a movable groove, and several connecting parts are provided between the base rod and the inner mold; The inner wall of the inner mold is provided with several positioning strips, and the movable arm is provided with several positioning grooves, which are adapted to the positioning strips. The positioning strip has a trapezoidal cross-section.

[0015] In a preferred embodiment, the connector includes several positioning blocks and connecting blocks disposed within the movable groove; A seventh hydraulic cylinder is provided on the side of the connecting block. A limit plate is slidably connected to the side of the connecting block near the positioning block. The limit plate is slidably connected inside the connecting block and is fixedly connected to the output end of the seventh hydraulic cylinder. The bottom of the inner wall of the inner mold is provided with several connecting posts, which are located inside the movable groove and between the positioning block and the connecting block; the outer periphery of the connecting posts is provided with an annular groove; the width of the annular groove is adapted to the thickness of the limiting plate. The limiting plate has a limiting groove on the side away from the seventh hydraulic cylinder. The inner diameter of the annular groove is smaller than the width of the limiting groove, ensuring that the limiting plate can pass through the annular groove to complete the locking. When the seventh hydraulic cylinder extends, the limiting plate extends out from the connecting block and is inserted into the interior of the positioning block after passing through the annular groove. At this time, the limiting groove and the annular groove are aligned. The bottom of the connecting column is provided with a threaded post, which is threadedly connected to the inner mold. The threaded column passes through the inner mold and is connected to a shaped part at its end; the shaped part is located at the bottom of the inner mold and is used to limit the minimum distance between the inner mold and the outer mold by its own thickness; Several transparent plates are embedded in the inner mold. A sensor is provided on the side of the transparent plate near the inner side of the inner mold to detect the distance between the inner mold and the outer mold.

[0016] This invention provides a method and apparatus for injection molding of ultra-high performance concrete hull-shaped floats. By adopting the above solution, the following beneficial effects are achieved: Made of UHPC material, it has high compressive strength, low water absorption, strong impact resistance, and long service life, far exceeding traditional plastic and metal boat-shaped buoys.

[0017] Through the precise positioning structure of the inner and outer molds and the detection of laser ranging sensors, the wall thickness error of the float is small and the dimensional accuracy is significantly better than that of traditional molding processes, which makes it easy to use UHPC to achieve precise molding of boat-shaped buoys.

[0018] The internal partitions are formed in one piece through the gaps in the inner mold, resulting in a strong overall structure and good sealing performance.

[0019] The UHPC slurry is densely filled using a pressure injection molding process, resulting in no defects such as honeycomb or pitted surfaces, leading to high production efficiency and high product quality. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the structure during the implementation of the present invention; Figure 2 This is a schematic diagram of the structure of the outer mold of the present invention; Figure 3 This is a schematic diagram of the structure of the inner mold of the present invention; Figure 4 This is a schematic diagram of the structure of the float of the present invention; Figure 5 This is a schematic diagram of the structure of the present invention after the inner mold is placed into the outer mold; Figure 6 This is a schematic diagram of the structure of the present invention when hoisting the inner mold; Figure 7 This is a schematic diagram of the structure of the present invention when lifting the floating body; Figure 8 This is a schematic diagram of the structure of the outer mold support frame of the present invention; Figure 9 This is an enlarged schematic diagram of the structure at the base of the present invention; Figure 10 This is a side view of the structure when the inner mold is placed into the outer mold according to the present invention; Figure 11 This is a side view of the outer mold support frame of the present invention. Figure 12 This is a side view of the inner mold mounting bracket of the present invention. Figure 13 yes Figure 12 Enlarged schematic diagram of the structure at point A in the diagram.

[0021] In the picture: Operating chamber 101, pit 102, traveling trolley 2, vehicle body 201, first electric hoist 202, lifting beam 203, second electric hoist 204, crossbeam 205, inner mold 301, positioning ring 302, partition 303, outer mold 304, positioning groove 305, float 306, partition 307, movable beam 4, pull rope 401, mounting hole 402, connecting frame 5, movable frame 501, connecting ring 502, mounting rod 503, first hydraulic cylinder 504, pull rod 505, outer mold support frame 6, base frame 601, base plate 602, pad plate 603, vertical plate 604, second hydraulic cylinder Pressure cylinder 605, push plate 606, third hydraulic cylinder 607, side plate 608, fourth hydraulic cylinder 609, support pad 610, inner mold mounting bracket 7, fixed bracket 701, fixed rod 702, movable arm 703, fifth hydraulic cylinder 704, sixth hydraulic cylinder 705, bottom rod 706, movable groove 707, positioning strip 708, connecting piece 8, positioning block 801, connecting block 802, seventh hydraulic cylinder 803, limit plate 804, limit groove 805, connecting column 806, annular groove 807, threaded column 808, irregular part 809, transparent plate 901, sensor 902. Detailed Implementation

[0022] Example 1: A method for injection molding of ultra-high performance concrete ship-shaped floats includes the following steps: S1: Determine the design parameters of the hull-shaped buoy based on the surface inspection requirements, such as a length of 10m, a width of 2.5-3m, a draft of 0.3-0.5m, a hull wall thickness of 90-110mm, and 2-5 compartments inside. A 3D model of the hull-shaped floating body is constructed using 3D modeling software (such as SolidWorks and AutoCAD), generating design data for the inner mold 301 and the outer mold 304, as well as UHPC injection volume calculation data.

[0023] S2: Based on the three-dimensional model of the boat-shaped floating body, design the inner mold 301 and the outer mold 304. The mold surface is polished to ensure low adhesion to UHPC and easy demolding.

[0024] Inner mold 301: simulates the internal contour of the ship-shaped float, including the internal arc surface of the hull; a positioning ring 302 is provided at the top, the bottom surface of the positioning ring 302 is adapted to the top contour of the float 306, and is used for mold positioning and top surface forming of the float 306; several slits 303 are provided at the bottom, the width of the slits 303 is consistent with the thickness of the internal partition 307 of the float 306, and is used for one-time forming of the partition 307.

[0025] Preferably, the outer dimension of the inner mold 301 is 2-3 mm smaller than the inner dimension of the float 306 to allow for UHPC shrinkage.

[0026] In the preferred embodiment, the inner mold 301 adopts a modular design, with the modular surface located at the seam 303, as detailed below. Figure 3 As shown.

[0027] Outer mold 304: simulates the external contour of a ship-shaped floating body, including the streamlined arc surface of the ship's exterior; a positioning groove 305 is provided on the top, which is adapted to the positioning ring 302 of the inner mold 301 for precise positioning of the inner mold 301 and the outer mold 304.

[0028] In the preferred embodiment, the outer mold 304 adopts a segmented design, consisting of a bottom piece and side pieces, which facilitates demolding and transportation.

[0029] S3: Installation of inner mold 301 and outer mold 304 and UHPC injection: The specific process is as follows: S31: Pit construction and external formwork installation structure layout: Excavate pit 102 at the production site. The size of pit 102 is 500-800mm larger than the external formwork 304. Pour C30 concrete into pit 102 to form operating cavity 101. The bottom level error of operating cavity 101 is ≤0.5mm / m. Install external formwork support frame 6 in operating cavity 101 as the installation foundation for external formwork 304.

[0030] S32: Mold installation: Fix the inner mold 301 to the inner mold mounting frame 7, and hoist the inner mold mounting frame 7 and the inner mold 301 installed thereon by the second electric hoist 204 of the traveling trolley 2; install the outer mold 304 on the outer mold support frame 6, and fix the outer mold 304 by components such as the base frame 601, base plate 602, vertical plate 604, and push plate 606 to ensure that the axis of the outer mold 304 is vertical and the outline meets the design requirements.

[0031] S33: The traveling trolley 2 moves along the track to above the outer mold 304; S34: Adjust the height of the lifting beam 203 by the first electric hoist 202, and then drive the movable beam 4 and the inner mold 301 to move down by the second electric hoist 204, so that the inner mold 301 slowly enters the inner mold 304 until the positioning ring 302 is initially embedded in the positioning groove 305.

[0032] S35: The distance between the inner mold 301 and the outer mold 304 is detected by the transparent plate 901 and the sensor 902 on the inner mold 301, that is, the wall thickness of the float 306 is detected. The sensor 902 is preferably a laser rangefinder sensor with a measurement accuracy of ±0.1mm, and is evenly arranged on the side and bottom of the inner mold 301.

[0033] S36: If the spacing does not meet the design standard, adjust the position of the outer mold 304 by using the second hydraulic cylinder 605, the third hydraulic cylinder 607, and the fourth hydraulic cylinder 609 of the outer mold support frame 6, or adjust the position of the inner mold 301 by using the sixth hydraulic cylinder 705 of the inner mold mounting frame 7, until the spacing of all detection points meets the design requirements.

[0034] S37: UHPC Injection: Prepare UHPC slurry, preferably with a water-to-binder ratio of 0.16-0.20, a maximum aggregate particle size of ≤4.75mm, and a fiber volume fraction of 2-3%. Inject the UHPC slurry into the cavity between the inner mold 301 and the outer mold 304 using a high-pressure injection pump to ensure that the slurry is densely filled without air bubbles or voids. During the injection process, observe the slurry filling status through the viewing plate 901 until the slurry overflows from the overflow port at the top of the mold, at which point stop the injection.

[0035] S4: The UHPC slurry is allowed to solidify in the mold. The initial setting time is controlled at 4-6 hours, and the final setting time is controlled at 12-16 hours. To perform the demolding operation, first, the outer mold 304 is released by the hydraulic cylinder of the outer mold support frame 6, the fifth hydraulic cylinder 704 and the seventh hydraulic cylinder 803 are contracted, the connection between the inner mold 301 and the inner mold mounting frame 7 is released, the inner mold mounting frame 7 is then lifted upward by the second electric hoist 204 of the traveling trolley 2, the connecting column 806 is then unscrewed, the threaded column 808 is moved away from the irregular part 809, and then the existing method is used for curing, and the inner mold 301 is demolded. After maintenance is completed, the floating body is lifted to the designed location, such as the testing equipment installation area or storage area, by the traveling trolley 2.

[0036] S5: Floating Body 306 Test The performance of the 306 float, after maintenance, was tested. The test items included: Dimensional accuracy test: The length, width, height and wall thickness of the float 306 were measured using a laser rangefinder, and the dimensional error was controlled within the range of -1mm to +1mm; Water absorption test: The float 306 is completely immersed in water for 24 hours, and the water absorption rate is measured. It must be ≤1%. Buoyancy test: The 306 float is placed in the pool and the draft is measured to ensure that it can still float stably after bearing the design weight of the testing equipment; Sealing test: Inject clean water into each compartment of buoy 306, let it stand for 24 hours, and observe whether there is any leakage.

[0037] S6: Equipment Installation and Commissioning After passing the test, a platform and testing equipment, such as water quality sensors, GPS positioning modules, data transmission antennas and battery packs, are installed on top of the float 306, and the equipment is debugged. After the debugging is completed, the float 306 equipped with the testing equipment is transported to the target water area and put into use for surface testing.

[0038] Example 2: like Figure 1-13 As shown, an ultra-high performance concrete boat-shaped float injection molding device includes a traveling trolley 2, a movable beam 4, a connecting frame 5, an outer mold support frame 6, an inner mold mounting frame 7, connecting parts 8, and a testing component. This device enables precise positioning of the inner and outer molds, injection molding of UHPC, and hoisting and demolding of the float 306. The specific structure is as follows: The traveling trolley 2 is used for hoisting and moving the inner mold 301 and the floating body 306. It includes a trolley body 201, a first electric hoist 202, a lifting beam 203, a second electric hoist 204, and a crossbeam 205. The bottom of the trolley body 201 is equipped with wheels that cooperate with the rails.

[0039] The top of the vehicle body 201 is equipped with 4-8 first electric hoists 202. Vertical guide rails are provided on both sides of the vehicle body 201. The end of the lifting beam 203 is slidably connected to the guide rails. The hook end of the first electric hoist 202 is connected to the lifting beam 203 to adjust the height of the lifting beam 203.

[0040] There are 2-6 crossbeams 205 between adjacent lifting beams 203. There are 2-4 second electric hoists 204 on the crossbeams 205. The hook end of the second electric hoist 204 is connected to the movable beam 4 and is used to lift the movable beam 4, the connecting frame 5 and the inner mold 301.

[0041] The movable beam 4 is used to connect the inner mold mounting bracket 7, and the connecting bracket 5 is used to fix the inner mold 301 and adjust its position. The specific structure is as follows: The movable beam 4 is preferably an I-beam, with several mounting holes 402 on its surface for connection with the connecting frame 5; The movable beam 4 is equipped with pull ropes 401 at both ends. The pull ropes 401 are preferably steel wire ropes with hooks, which are used to lift the demolded float 306 after the connecting frame 5 is disassembled.

[0042] The connecting frame 5 includes a movable frame 501, a connecting ring 502, a mounting rod 503, a first hydraulic cylinder 504, and a tie rod 505. The movable frame 501 is a steel structure frame with multiple connecting rings 502 on the top. The connecting rings 502 are connected to the mounting holes 402 of the movable beam 4 through the mounting rods 503. The mounting rods 503 are preferably pin rods or threaded rods, so as to realize the detachable connection between the movable frame 501 and the movable beam 4.

[0043] Multiple first hydraulic cylinders 504 are provided at the bottom edge of the movable frame 501, and the same number of tie rods 505 are provided in the pit 102. The positions of the tie rods 505 correspond to the first hydraulic cylinders 504. The first hydraulic cylinders 504 are vertically arranged, and their bottom ends and the top ends of the tie rods 505 are provided with mounting rings, which are connected by pins to fix the position of the movable frame 501 and prevent the inner mold 301 from shifting during the injection process.

[0044] During the injection process, the first hydraulic cylinder 504 generates a pulling force, which causes the inner mold 301 to be subjected to a force that continuously approaches the outer mold 304, thereby avoiding the influence of UHPC buoyancy on the inner mold 301 during the injection process and ensuring the quality and accuracy of the injection product.

[0045] When it is necessary to lift the float 306, pull out the installation rod 503 to separate the movable frame 501 from the movable beam 4, and connect the top installation platform of the float 306 through the pull rope 401 to realize the lifting of the float 306.

[0046] The outer mold support frame 6 is used for fixing and adjusting the position of the outer mold 304. It includes a base frame 601, a base plate 602, a pad plate 603, a vertical plate 604, a second hydraulic cylinder 605, a push plate 606, a third hydraulic cylinder 607, a side plate 608, a fourth hydraulic cylinder 609, and a support pad 610, all of which are made of Q235 steel.

[0047] Two base frames 601 are symmetrically arranged at both ends of the outer mold 304, and the base plate 602 is located at the bottom of the outer mold 304. Both are fixed in the concrete operating cavity of the pit 102. The base frames 601 and the base plate 602 are provided with pads 603 on the side of the outer mold 304 to buffer the contact pressure between the outer mold 304 and the support frame and avoid damage to the outer mold.

[0048] The top of the base frame 601 is provided with multiple second hydraulic cylinders 605. The output end of the second hydraulic cylinder 605 is connected to the vertical plate 604. The vertical plate 604 abuts against the top of both ends of the outer mold 304 to fix the edge position of both ends of the outer mold 304.

[0049] The bottom end of the vertical plate 604 is provided with multiple third hydraulic cylinders 607. The output end of the third hydraulic cylinder 607 is connected to the push plate 606. The push plate 606 is preferably an arc plate with an arc that matches the arc surface of the outer mold 304. The push plate 606 abuts against the side arc surface of the outer mold 304 to adjust the position of the arc surfaces at both ends of the outer mold 304.

[0050] Multiple side plates 608 are hinged to the top of the base plate 602. The curvature of the side plates 608 is adapted to the side arc surface of the outer mold 304. A fourth hydraulic cylinder 609 is provided between the side plates 608 and the side wall of the pit 102. The angle of the side plates 608 is adjusted by the extension and retraction of the fourth hydraulic cylinder 609, thereby fixing the side position of the outer mold 304.

[0051] The top of the base plate 602 is provided with a support pad 610, the top surface of which is curved and the curvature is adapted to the curved surface of the bottom of the outer mold 304. This pad is used to support the bottom of the outer mold 304 and reduce the deformation of the outer mold 304.

[0052] Furthermore, the inner mold mounting bracket 7 is used for fixing and adjusting the position of the inner mold 301, including a fixing bracket 701, a fixing rod 702, a movable arm 703, a fifth hydraulic cylinder 704, a sixth hydraulic cylinder 705, a bottom rod 706, and a positioning strip 708, all of which are made of Q235 steel.

[0053] The fixed frame 701 is a steel structure frame, which is fixedly connected to the movable frame 501 of the connecting frame 5; the bottom of the fixed frame 701 is provided with multiple fixed rods 702 to support the movable arm 703 and the bottom rod 706.

[0054] The bottom of the fixed frame 701 is hinged with multiple movable arms 703, and the sides of the movable arms 703 are close to the inner wall side of the inner mold 301. A fifth hydraulic cylinder 704 is provided between the bottom end of the movable arm 703 and the fixed rod 702. The angle of the movable arm 703 is adjusted by the extension and retraction of the fifth hydraulic cylinder 704, thereby fixing the side position of the inner mold 301.

[0055] The bottom of the fixing rod 702 is provided with a sixth hydraulic cylinder 705. The sixth hydraulic cylinder 705 is set vertically and its bottom is connected to the bottom rod 706. The bottom rod 706 is set horizontally and its bottom is close to the bottom of the inner wall of the inner mold 301, which is used to fix the bottom position of the inner mold 301. The bottom of the bottom rod 706 is provided with a movable groove 707 for installing the connecting piece 8.

[0056] The inner wall of the inner mold 301 is provided with several positioning strips 708, which have a trapezoidal cross-section. The side of the movable arm 703 is provided with positioning grooves that are adapted to the positioning strips 708. When the movable arm 703 rotates and approaches the inner wall of the inner mold 301, the positioning strips 708 are embedded in the positioning grooves. Thus, during hoisting, the inner mold 301 and the movable arm 703 are restricted by the positioning strips 708 and there is no relative sliding, ensuring stable transportation.

[0057] In a further embodiment, the connector 8 is used for the detachable connection between the inner mold 301 and the inner mold mounting frame 7, and includes a positioning block 801, a connecting block 802, a seventh hydraulic cylinder 803, a limiting plate 804, a connecting column 806, and a shaped part 809.

[0058] The positioning block 801 and the connecting block 802 are both located in the movable groove 707 of the bottom rod 706, and the number is the same. One positioning block 801 and one connecting block 802 form a group, and multiple groups of positioning blocks 801 and connecting blocks 802 are sequentially arranged in the movable groove 707.

[0059] A seventh hydraulic cylinder 803 is provided on the side of the connecting block 802. A limit plate 804 is slidably connected to the side of the connecting block 802 near the positioning block 801. The limit plate 804 is fixedly connected to the output end of the seventh hydraulic cylinder 803. A limit groove 805 is provided on the side of the limit plate 804 away from the seventh hydraulic cylinder 803.

[0060] The inner wall of the inner mold 301 is provided with several connecting posts 806 at the bottom. The connecting posts 806 are located between the positioning block 801 and the connecting block 802. The outer periphery is provided with an annular groove 807. The width of the annular groove 807 is adapted to the thickness of the limiting plate 804. The bottom of the connecting column 806 is provided with a threaded column 808, which is threadedly connected to the inner mold 301. The end is connected with a special-shaped part 809, which is located at the bottom of the inner mold 301 and is used to limit the minimum distance between the inner mold 301 and the outer mold 304 to control the forming thickness.

[0061] When it is necessary to fix the inner mold 301, the seventh hydraulic cylinder 803 extends while the movable arm 703 is connected, pushing the limiting plate 804 out of the connecting block 802. After passing through the annular groove 807 of the connecting column 806, it is inserted into the interior of the positioning block 801. At this time, the limiting groove 805 of the limiting plate 804 mates with the annular groove 807 of the connecting column 806, fixing the connecting column 806, thereby fixing the inner mold 301 and the inner mold mounting frame 7. When demolding, the seventh hydraulic cylinder 803 retracts, the limiting plate 804 retracts to the connecting block 802, and the movable arm 703 retracts. The inner mold 301 and the inner mold mounting frame 7 can then be separated, allowing the inner mold to be easily lifted and transported.

[0062] The detection assembly, used to monitor the distance between the inner mold 301 and the outer mold 304, includes a viewing plate 901 and a sensor 902. The inner mold 301 contains multiple transparent panels 901 made of tempered glass, which are evenly distributed on the sides and bottom of the inner mold 301.

[0063] A sensor 902 is provided on the side of the transparent plate 901 near the inner side of the inner mold 301. The sensor 902 is preferably a laser rangefinder. The signal of the sensor 902 is sent to the control console through a wireless transmission module to display the distance between the inner mold 301 and the outer mold 304 in real time, which makes it convenient for operators to adjust the mold position.

[0064] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A high-performance concrete boat-shaped float injection molding device, characterized in that: Includes a movable beam (4), which is connected to the traveling trolley (2); The movable beam (4) is provided with a connecting frame (5), and the connecting frame (5) is provided with an inner mold mounting frame (7) for installing the inner mold (301); The outer mold (304) is installed in the pit (102) through the outer mold support frame (6), and the inner mold (301) is adapted to the outer mold (304); The inner mold (301) has a positioning ring (302) at the top of its outer side, and the bottom surface of the positioning ring (302) is adapted to the top surface of the float (306); The inner top of the outer mold (304) is provided with a positioning groove (305), which is adapted to the positioning ring (302); The inner mold mounting bracket (7) includes a fixing bracket (701) connected to the connecting bracket (5); The bottom of the fixing frame (701) is provided with several fixing rods (702); The bottom of the fixed rod (702) is provided with a sixth hydraulic cylinder (705), which is vertically set and has a bottom rod (706) at the bottom. The bottom rod (706) is arranged horizontally, and the bottom of the bottom rod (706) is close to the bottom of the inner wall of the inner mold (301); The bottom of the bottom rod (706) is provided with a movable groove (707), and several connecting parts (8) are provided between the bottom rod (706) and the inner mold (301). The connector (8) includes several positioning blocks (801) and connecting blocks (802) disposed in the movable groove (707); The side of the connecting block (802) is provided with a seventh hydraulic cylinder (803). The side of the connecting block (802) near the positioning block (801) is slidably connected to a limit plate (804). The limit plate (804) is slidably connected inside the connecting block (802) and fixedly connected to the output end of the seventh hydraulic cylinder (803). The inner wall of the inner mold (301) is provided with several connecting columns (806) at the bottom. The connecting columns (806) are located inside the movable groove (707) and between the positioning block (801) and the connecting block (802). The outer periphery of the connecting column (806) is provided with an annular groove (807). The width of the annular groove (807) is adapted to the thickness of the limiting plate (804). The limiting plate (804) is provided with a limiting groove (805) on the side away from the seventh hydraulic cylinder (803). The inner diameter of the annular groove (807) is smaller than the width of the limiting groove (805) to ensure that the limiting plate (804) can pass through the annular groove (807) to complete the snap-fit. When the seventh hydraulic cylinder (803) extends, the limiting plate (804) extends out from the connecting block (802), passes through the annular groove (807), and is inserted into the interior of the positioning block (801). At this time, the limiting groove (805) and the annular groove (807) are connected. The bottom of the connecting post (806) is provided with a threaded post (808), which is threadedly connected to the inner mold (301); The threaded column (808) passes through the inner mold (301) and is connected to the end of the irregular part (809); the irregular part (809) is located at the bottom of the inner mold (301) and is used to limit the minimum distance between the inner mold (301) and the outer mold (304) by its own thickness.

2. The ultra-high performance concrete boat-shaped float injection molding device according to claim 1, characterized in that: The traveling trolley (2) includes a trolley body (201), and a number of first electric hoists (202) are provided on the top of the trolley body (201). The vehicle body (201) is slidably connected to several lifting beams (203), and the hook end of the first electric hoist (202) is connected to the lifting beams (203); Several crossbeams (205) are provided between adjacent lifting beams (203), and several second electric hoists (204) are provided on the crossbeams (205). The hook end of the second electric hoist (204) is connected to the movable beam (4).

3. The ultra-high performance concrete boat-shaped float injection molding device according to claim 1, characterized in that: The interior of the float (306) is provided with several partitions (307), and the interior of the float (306) is separated by partitions (307) to form several cabins; The bottom of the inner mold (301) is provided with several slits (303), the width of which is adapted to the partition (307) inside the float (306).

4. The ultra-high performance concrete boat-shaped float injection molding device according to claim 1, characterized in that: The movable beam (4) has several mounting holes (402); The connecting frame (5) includes a movable frame (501), and the top of the movable frame (501) is provided with several connecting rings (502); the connecting rings (502) are connected to the mounting holes (402) through mounting rods (503); The bottom edge of the movable frame (501) is provided with several first hydraulic cylinders (504); The pit (102) is equipped with several tie rods (505), and the positions of the tie rods (505) are adapted to the first hydraulic cylinder (504); The first hydraulic cylinder (504) is vertically arranged. The bottom end of the first hydraulic cylinder (504) and the top end of the pull rod (505) are both provided with mounting rings for connecting the first hydraulic cylinder (504) and the pull rod (505).

5. The ultra-high performance concrete boat-shaped float injection molding device according to claim 4, characterized in that: The mounting rod (503) is a pin rod or a threaded rod; after the mounting rod (503) pulls out the connecting ring (502) and the mounting hole (402), the movable frame (501) separates from the movable beam (4); The movable beam (4) is equipped with a pull rope (401); after the movable frame (501) is separated from the movable beam (4), the pull rope (401) is used to connect the float (306).

6. The ultra-high performance concrete boat-shaped float injection molding device according to claim 1, characterized in that: The outer mold support frame (6) includes a base plate (602) and two base frames (601), both of which are located in the pit (102); Two base frames (601) are located at both ends of the outer mold (304), and the base plate (602) is located at the bottom of the outer mold (304); Both the base frame (601) and the base plate (602) are provided with pads (603) on the side near the outer mold (304). The top of the base frame (601) is provided with a vertical plate (604) via several second hydraulic cylinders (605), and the vertical plate (604) abuts against the top of the outer mold (304); The bottom end of the vertical plate (604) is provided with a push plate (606) via several third hydraulic cylinders (607), and the push plate (606) abuts against the arc surface of the outer mold (304); The top of the base plate (602) is hinged with several side plates (608), and several fourth hydraulic cylinders (609) are provided between the side plates (608) and the pit (102). The top of the base plate (602) is provided with a support pad (610), the top surface of the support pad (610) is an arc surface, and the arc surface is adapted to the arc surface at the bottom of the outer mold (304).

7. The ultra-high performance concrete boat-shaped float injection molding device according to claim 1, characterized in that: The bottom of the fixed frame (701) is hinged with several movable arms (703); the movable arms (703) are close to the inner wall side of the inner mold (301); A fifth hydraulic cylinder (704) is provided between the bottom end of the movable arm (703) and the fixed rod (702). The inner wall of the inner mold (301) is provided with several positioning strips (708), and the movable arm (703) is provided with several positioning grooves, which are adapted to the positioning strips (708); The positioning strip (708) has a trapezoidal cross-section.

8. The ultra-high performance concrete boat-shaped float injection molding device according to claim 1, characterized in that: The inner mold (301) is inlaid with several transparent plates (901). A sensor (902) is provided on the side of the transparent plate (901) near the inner side of the inner mold (301) to detect the distance between the inner mold (301) and the outer mold (304).

9. A method for injection molding of ultra-high performance concrete hull-shaped floats, characterized in that: The ultra-high performance concrete hull-shaped float injection molding apparatus according to any one of claims 1-8 includes the following steps: S1. Obtain data on the hull-shaped floating body; S2. Design and form the inner mold (301) and outer mold (304) according to the hull shape data. S3. Use an inner mold (301) and an outer mold (304) to press-cast UHPC; S4. The injected UHPC is solidified, demolded and cured to obtain a float (306). S5. Test the size, water absorption, buoyancy and sealing of the float (306); S6. If the test is successful, install the testing platform and equipment on the float (306) and put the float (306) with the testing equipment into the water for use.

10. The method for injection molding of an ultra-high performance concrete hull-shaped float according to claim 9, characterized in that: S3 includes: S31. Excavate and construct a pit (102) with concrete. The pit (102) is equipped with an operating chamber (101), and the operating chamber (101) is equipped with an external mold installation structure. S32, The traveling trolley (2) installs the inner mold (301); The outer mold (304) is installed at the outer mold mounting structure. S33, The traveling trolley (2) moves the installed inner mold (301) above the outer mold (304); S34, the inner mold (301) moves down, so that the inner mold (301) moves into the outer mold (304); S35. Detect the distance between the inner mold (301) and the outer mold (304); S36. The spacing test result does not meet the design standard. Adjust the positions of the inner mold (301) and the outer mold (304) until they meet the design standard. S37. Inject UHPC between the inner mold (301) and the outer mold (304).

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