A pouring and vibrating tool for cable trough cover plate

Abstract

The present application relates to the technical field of concrete pouring, specifically to the technical field of pouring and vibrating tooling for cable trench cover plates, and more specifically to a pouring and vibrating tooling for cable trench cover plates, comprising a base, a vibrating table, the vibrating table being in the form of a box-like structure with an open upper end and a closed lower end, the vibrating table being elastically connected to the top of the base by elastic members, the bottom surface of the vibrating table being provided with a vibrating motor, the interior of the vibrating table being rotatably connected to a rotary table, and the upper surface of the rotary table being uniformly provided with a plurality of mounting holes; the tooling has a rotary table rotatably connected to the interior of the vibrating table, and the rotary table has a plurality of object-carrying discs on which molds can be placed, so that a plurality of molds can be placed on the rotary table at one time, and by rotating the rotary table, the molds can be made to enter the lower part of the discharge pipe in turn, thus helping to improve the pouring efficiency of the cable trench cover plates.

Description

Technical Field

[0001] This invention relates to the field of concrete pouring technology, specifically to a vibratory tool for pouring cable trough covers. Background Technology

[0002] With the rapid development of high-speed rail construction in my country, prefabricated components, as an important part of railway construction, are facing increasing production demand and higher quality standards. Cable trough covers are often the most in-demand prefabricated components for railway construction and a key element in improving the image of railway construction.

[0003] Cable trough covers are generally rectangular slab structures made of concrete. Their manufacturing process requires specialized molds. Precast steel mesh is placed inside the mold, followed by pouring concrete. After the concrete hardens, the finished cable trough cover can be removed from the mold. Traditionally, cable trough covers are produced in large factories using automated equipment for centralized prefabrication, curing, and storage, before being transported to various locations along the railway line. However, due to the long construction routes and complex environments of railway projects, transportation costs increase. Therefore, current technology typically employs simplified tooling for prefabrication of cable trough covers in designated areas along the railway line. This involves selecting multiple construction sites and using simple manufacturing equipment for production.

[0004] Currently, the workflow for prefabricated cable trough covers using simplified tooling generally includes template customization, customization of pouring and vibration equipment, steel mesh fabrication, concrete pouring, and curing / storage. Existing pouring and vibration equipment typically includes a placing hopper and a vibrating table. The placing hopper has a discharge pipe at its bottom, with a valve controlling its opening and closing. During pouring, an empty mold is placed on the vibrating table, and concrete is discharged into the mold using the discharge pipe. Once the mold is filled with an appropriate amount of concrete, the valve is closed, and the vibrating motor at the bottom of the vibrating table is turned on, causing the table surface to vibrate at high speed. This vibrates and compacts the concrete within the mold. Finally, the mold is removed from the vibrating table and placed in a designated location for curing, awaiting concrete hardening.

[0005] However, the aforementioned casting and vibration equipment uses a semi-manual, semi-automatic method. While it can successfully precast cable trough covers, only one mold can be placed on the vibration table at a time, resulting in low casting efficiency. If multiple molds are placed on the vibration table simultaneously, the discharge pipe's unloading position is fixed, requiring workers to manually move the molds for easy material receiving, which is time-consuming and labor-intensive. Therefore, we propose a casting and vibration equipment for cable trough covers to effectively address these shortcomings. Summary of the Invention

[0006] The purpose of this invention is to provide a vibratory casting fixture for cable trough covers, which solves the problems mentioned in the background art.

[0007] The present invention is achieved through the following technical solution: a vibratory fixture for casting cable trough cover plate, including a base and a vibrating table, wherein the vibrating table has a box-shaped structure with an open top and a closed bottom, the vibrating table is elastically connected to the top of the base by an elastic element, a vibrating motor is provided on the bottom surface of the vibrating table, and a rotating platform is rotatably connected inside the vibrating table, wherein a plurality of mounting holes are uniformly opened through the upper surface of the rotating platform.

[0008] The number of the loading discs corresponds one-to-one with the mounting holes. The bottom surface of the loading disc is provided with a rotating column, which is inserted into the corresponding mounting hole and rotatably connected to it. The top surface of the loading disc is provided with a receiving groove, and a receiving box is provided in the receiving groove for placing the mold.

[0009] The fabric hopper has a support fixedly mounted on its exterior. The support is fixedly connected to the top surface of the base. A discharge pipe is provided at the bottom of the fabric hopper and on the side facing the vibrating table. The discharge pipe is inclined downwards and the end of the discharge pipe is provided with a valve mechanism for controlling the opening and closing of the discharge pipe.

[0010] Optionally, the inner bottom surface of the vibration table is provided with a positioning ring, and the center of the bottom surface of the rotating platform is provided with a main shaft, which is inserted into the positioning ring and the two are rotated together.

[0011] Optionally, a drive motor is provided on the outer side of the vibration table, and a drive gear is provided on the output shaft of the drive motor. An opening is provided on the side wall of the vibration table near the drive motor, and a driven gear is rotatably arranged in the opening. The driven gear meshes with the drive gear. A driven gear ring is also provided on the bottom surface of the rotating platform. The driven gear ring is arranged on the same central axis as the loading disk, and the driven gear ring also meshes with the driven gear.

[0012] Optionally, the valve mechanism includes a mounting bracket and a valve plate. The mounting bracket is U-shaped and is also fixedly connected to the discharge pipe. A sealing groove is provided at the top of the discharge pipe and on the inner side of the mounting bracket. The valve plate is inserted into the sealing groove from top to bottom.

[0013] Optionally, the valve plate has a valve stem at its top, the top of which extends through the top wall of the mounting frame. A lifting plate is also provided at the top of the valve stem, and two lifting rods are fixedly mounted on the lifting plate. These lifting rods are inverted L-shapes, and their bottom ends share a common connecting member. A roller is provided at the bottom end of the connecting member. A sealing spring is also fitted around the valve stem, with both ends abutting against the top wall of the mounting frame and the top wall of the valve plate, respectively. In its natural state, the sealing spring is compressed, and the valve plate is closed.

[0014] Optionally, the top surface of the rotating platform is provided with a drive frame corresponding to each of the loading discs. The top surface of the drive frame is provided with a drive boss. The drive boss is arc-shaped and has a shape that is low at both ends and high in the middle. The center of the circle corresponding to the drive boss coincides with the central axis of the rotating platform. When the loading disc is located directly below the end of the discharge pipe, the roller rolls and fits against the top of the corresponding drive boss, and the valve plate is in the open state.

[0015] Optionally, the bottom end of the rotating column is provided with a driving column, and a rotating gear ring is fitted on the outside of the driving column. The inner bottom surface of the vibration table is provided with an arc-shaped plate, the center of which coincides with the central axis of the rotating platform. The inner surface of the arc-shaped plate is also provided with a rotating rack corresponding to the rotating gear ring. When the rotating column moves to a position directly opposite the arc-shaped plate, the rotating gear ring meshes with the rotating rack. After the rotating column passes the arc-shaped plate, the rotating column rotates 180°.

[0016] Optionally, the inner bottom surface of the receiving groove is provided with slide rails distributed along its own length direction, and the receiving box slides in cooperation with the slide rails; the outer ends of the receiving box are symmetrically provided with pull rods, the pull rods are aligned with the length direction of the slide rails, the end of the pull rod away from the receiving box moves through the carrying disc and extends to the outside of the carrying disc, and the outside of the pull rod is also fitted with a correction spring, the two ends of the correction spring abutting against the inner wall of the receiving groove and the outer wall of the receiving box respectively, and in the natural state, the correction spring is in a compressed state.

[0017] Optionally, a column is provided on the top surface of the base between the vibrating table and the fabric hopper, and a baffle plate is provided at the top of the column, the baffle plate being higher than the vibrating table; when the loading disc is located directly below the discharge pipe, the outer end of the corresponding pull rod abuts against the baffle plate, and the corresponding receiving box is offset toward the center of the rotating platform.

[0018] Optionally, the receiving box is equipped with a lifting plate inside, and lifting blocks are symmetrically arranged on both sides of the bottom surface of the lifting plate. Two lifting holes are opened through the bottom surface of the receiving box, and the two lifting blocks are respectively embedded in the two lifting holes. A shaft hole is opened through the rotating column and located directly below the two lifting holes. A lifting rod is movably inserted into the shaft hole. The bottom end of the lifting rod is provided with a bulge. A lifting spring is also sleeved on the outside of the lifting rod. The two ends of the lifting spring are fixedly connected to the bottom surface of the rotating column and the upper end of the bulge, respectively. The inner bottom surface of the vibration table is provided with two lifting arc plates. The center of the lifting arc plates coincides with the central axis of the rotating platform. The top of the lifting arc plates is provided with several spherical protrusions. When the carrying disc passes over the lifting arc plates, the two lifting rods are respectively located directly above the two lifting arc plates, and the two bulges are intermittently in contact with the spherical protrusions on the two lifting arc plates.

[0019] Compared with the prior art, the present invention provides a vibratory tool for casting cable trough covers, which has the following advantages:

[0020] 1. The present invention has a rotating platform, which is rotatably connected to the inner side of the vibration table, and the rotating platform has multiple loading disks for placing molds. Therefore, multiple molds can be placed on the rotating platform at one time, and by rotating the rotating platform, multiple molds can be allowed to enter the bottom of the discharge pipe in turn, thus helping to improve the casting efficiency of the cable trough cover plate.

[0021] 2. When the loading disc carrying the mold passes under the discharge pipe twice in this invention, the concrete discharged from the discharge pipe can form two arc-shaped paths in the mold, which is conducive to the uniform distribution of concrete in the mold. Therefore, it helps to shorten the vibration time in the later stage and further improves the construction efficiency.

[0022] 3. The discharge pipe of the present invention has a valve mechanism, which includes a valve plate for directly controlling the opening and closing of the discharge pipe. Each time the loading disc carrying the mold passes under the discharge pipe, the valve plate is automatically lifted, so that the opening and closing of the discharge can be controlled manually without the need for manual control, thus achieving accurate discharge and improving the ease of operation of the device.

[0023] 4. The present invention also includes a lifting plate. Each time the loading disc passes over the lifting plate, the lifting plate vibrates up and down, thereby causing the first concrete path discharged from the discharge pipe to collapse, preventing the overlapping part of the two concrete paths from accumulating too high. At the same time, the pre-vibration also helps to shorten the subsequent vibration time, further improving the production efficiency of the present invention. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a cross-sectional view of the structure of the present invention;

[0026] Figure 3 This is a cross-sectional view of the base structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the vibration table structure of the present invention;

[0028] Figure 5 This is a top view of the vibration table structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the valve mechanism of the present invention;

[0030] Figure 7 This is a schematic diagram of the discharge pipe structure of the present invention;

[0031] Figure 8 This is a schematic diagram of the disk structure of the present invention;

[0032] Figure 9 This is a schematic diagram of the back structure of the loading disk of the present invention;

[0033] Figure 10 This is a schematic diagram of the vibration table structure of the present invention;

[0034] Figure 11 This is a cross-sectional view of the disk structure of the present invention;

[0035] Figure 12 for Figure 3 Enlarged view of point A in the middle;

[0036] Figure 13 for Figure 4 Enlarged view of point B in the image;

[0037] Figure 14 for Figure 11 Enlarged view of the corresponding area at point C;

[0038] Figure 15 This is a schematic diagram of the mold after casting in this invention.

[0039] In the diagram: 100, base; 200, vibration table; 201, elastic element; 202, vibration motor; 203, rotating platform; 204, mounting hole; 205, positioning ring; 206, main shaft; 207, drive motor; 208, driving gear; 209, opening; 210, driven gear; 211, driven gear ring; 212, drive frame; 213, drive boss; 214, arc plate; 215, flipping rack; 216, embedded groove; 217, lifting arc plate; 218, spherical protrusion; 300, loading disc; 301, rotating column; 302, receiving groove; 303, receiving box; 304, drive column; 3 05. Tilting gear ring; 306. Spring ball contact; 307. Slide rail; 308. Pull rod; 309. Correcting spring; 310. Column; 311. Blocking plate; 312. Lifting plate; 313. Lifting spring; 314. Lifting block; 315. Lifting hole; 316. Shaft hole; 317. Lifting rod; 318. Bulge; 400. Cloth hopper; 401. Bracket; 402. Discharge pipe; 403. Sealing groove; 500. Valve mechanism; 501. Mounting bracket; 502. Valve plate; 503. Valve stem; 504. Lifting plate; 505. Lifting rod; 506. Connector; 507. Roller; 508. Sealing spring. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Nowadays, when making cable trough covers, an empty mold needs to be placed on a vibrating table, and then concrete is poured into the empty mold using a hopper. After an appropriate amount of concrete has been poured into the empty mold, the hopper is closed in time, and the vibration table is used to vibrate and compact the concrete in the mold. After the vibration is finished, the mold is removed from the vibrating table and placed in a designated location for curing. Once the concrete has solidified, it can be demolded, and the finished cable trough cover can be taken out of the mold.

[0042] However, existing concrete pouring and vibration equipment still has some shortcomings. For example, the concrete discharge position from the hopper is fixed, meaning the mold must always be positioned directly below the hopper's discharge pipe. This causes concrete to accumulate inside the mold, forming a cone shape that is wider at the bottom than the top. During later vibration, the concrete pile gradually collapses and fills the entire mold. While this pouring method does not affect the subsequent concrete vibration process, the concentrated and uneven distribution of concrete in one area leads to longer vibration times, hindering production efficiency.

[0043] In order to solve the above problems, the present invention proposes the following technical solution:

[0044] Please see Figure 1 - Figure 15 A vibratory casting fixture for cable trough covers includes a base 100, a vibrating table 200, and a loading disc 300. The vibrating table 200 has a box-like structure with an open top and a closed bottom. The vibrating table 200 is elastically connected to the top of the base 100 via an elastic element 201. A vibrating motor 202 is provided on the bottom surface of the vibrating table 200. A rotating platform 203 is rotatably connected inside the vibrating table 200. A plurality of mounting holes 204 are evenly distributed through the upper surface of the rotating platform 203. Specifically, in this embodiment, the elastic element 201 is a spring. When the vibrating motor 202 is turned on, it can vibrate the vibrating table 200 and the rotating platform 203 together. In addition, a positioning ring 205 is provided on the inner bottom surface of the vibrating table 200, and a main shaft 206 is provided at the center of the bottom surface of the rotating platform 203. The main shaft 206 is inserted into the positioning ring 205 and the two are rotatably engaged. Therefore, the rotating platform 203 can rotate around its own center.

[0045] In addition, the number of the carrying discs 300 corresponds one-to-one with the mounting holes 204, and the bottom surface of the carrying discs 300 is provided with rotating columns 301, such as... Figure 3 As shown, the rotating column 301 is inserted into the corresponding mounting hole 204 and rotatably connected to it. The top surface of the carrying disk 300 is provided with a receiving groove 302, and a receiving box 303 is provided in the receiving groove 302. The receiving box 303 is used to place the mold. Specifically, the rotating column 301 is rotatably connected to the mounting hole 204 through a bearing, and the rotating column 301 and the carrying disk 300 are arranged on the same central axis, that is, the carrying disk 300 can rotate around its own center. In this embodiment, the number of mounting holes 204 is four, that is, the number of receiving boxes 303 is also four.

[0046] Furthermore, a drive motor 207 is provided on the outer side of the vibration table 200, such as... Figure 4 As shown, the output shaft of the drive motor 207 is provided with a drive gear 208, and an opening 209 is provided on the side wall of the vibration table 200 near the drive motor 207. A driven gear 210 is rotatably arranged in the opening 209, and the driven gear 210 meshes with the drive gear 208. The bottom surface of the rotating platform 203 is also provided with a driven gear ring 211, which is coaxial with the loading disk 300 and meshes with the driven gear 210. Therefore, the rotation of the rotating platform 203 can be directly controlled by the drive motor 207.

[0047] This embodiment also includes a fabric hopper 400, such as Figure 2As shown, a support 401 is fixedly provided on the outside of the hopper 400. The support 401 is fixedly connected to the top surface of the base 100. A discharge pipe 402 is provided at the bottom of the hopper 400 and on the side facing the vibrating table 200. The discharge pipe 402 is inclined downward and the end of the discharge pipe 402 is provided with a valve mechanism 500 for controlling the opening and closing of the discharge pipe 402. Specifically, the end of the discharge pipe 402 is bent downward and vertical. Therefore, when the valve mechanism 500 is opened, the concrete in the hopper 400 can be poured vertically downward from the end of the discharge pipe 402.

[0048] Specifically, the valve mechanism 500 includes a mounting bracket 501 and a valve plate 502, such as Figure 6 As shown, the mounting bracket 501 is U-shaped and is also fixedly connected to the discharge pipe 402. A sealing groove 403 is provided at the top of the discharge pipe 402, located inside the mounting bracket 501. Figure 7 As shown, the valve plate 502 is inserted into the sealing groove 403 from top to bottom. A valve stem 503 is located at the top of the valve plate 502, and the top of the valve stem 503 movably penetrates the top wall of the mounting bracket 501. A lifting plate 504 is also located at the top of the valve stem 503, and two lifting rods 505 are fixedly mounted on the lifting plate 504. The lifting rods 505 are inverted L-shapes, and the bottom ends of the two lifting rods 505 share a common connecting piece 506. A roller 507 is located at the bottom end of the connecting piece 506. The valve stem 503... An external sealing spring 508 is also provided. The two ends of the sealing spring 508 abut against the top wall of the mounting bracket 501 and the top wall of the valve plate 502, respectively. Under normal conditions, the sealing spring 508 is in a compressed state and the valve plate 502 is in a closed state. That is, when the valve plate 502 is not subjected to external force from the system, the discharge pipe 402 is always in a closed state, and the concrete in the hopper 400 cannot be discharged. When the valve plate 502 rises, the concrete in the discharge pipe 402 can be discharged smoothly.

[0049] More specifically, the top surface of the rotating platform 203 is provided with drive frames 212 that correspond one-to-one with the loading disks 300, such as... Figure 4As shown, the top surface of the drive frame 212 is provided with a drive boss 213. The drive boss 213 is arc-shaped and has a shape that is low at both ends and high in the middle. The center of the circle corresponding to the drive boss 213 coincides with the central axis of the rotating platform 203. When the loading disc 300 is located directly below the end of the discharge pipe 402, the roller 507 rolls and adheres to the top of the corresponding drive boss 213, and the valve plate 502 is in the open state. It should be noted that the top wall of the drive frame 212 is located on the corresponding loading disc. Above 300, when the loading disc 300 is not below the discharge pipe 402, the roller 507 is slightly higher than the top wall of the drive frame 212. When the loading disc 300 passes under the discharge pipe 402, the roller 507 can roll along the top surface of the drive boss 213, so that the valve plate 502 first rises, then remains stationary, and finally falls back to its original position. Therefore, the discharge pipe 402 can smoothly discharge concrete into the mold. When the rotating platform 203 rotates at a constant speed, it can drive the discharge pipe 402 to discharge material intermittently.

[0050] In addition, a drive column 304 is provided at the bottom end of the rotating column 301, such as Figure 9 As shown, a rotating toothed ring 305 is fitted around the drive column 304, and an arc-shaped plate 214 is provided on the inner bottom surface of the vibration table 200, as... Figure 10 As shown, the center of the arc plate 214 coincides with the central axis of the rotating platform 203, and the arc plate 214 is located on the opposite side of the fabric hopper 400. The inner surface of the arc plate 214 is also provided with a rotating rack 215 corresponding to the rotating gear ring 305. When the rotating column 301 moves to the position directly opposite the arc plate 214, the rotating gear ring 305 and the rotating rack 215 mesh. After the rotating column 301 passes the arc plate 214, the rotating column 301 rotates 180°. That is, the length of the rotating rack 215 is equivalent to half the circumference of the rotating gear ring 305.

[0051] It is worth mentioning that spring-loaded ball bearings 306 are symmetrically arranged on both sides of the bottom surface of the loading disk 300, such as... Figure 12 As shown, the top surface of the rotating platform 203, located below the loading disk 300, has an embedded groove 216 corresponding to the spring ball 306. In the initial state, the bottom end of the spring ball 306 is embedded in the corresponding embedded groove 216. When the drive column 304 moves to the position directly opposite the arc plate 214, the rotating column 301 can rotate within the mounting hole 204, thereby causing the spring ball 306 to move out of the embedded groove 216. After the drive column 304 rotates half a turn, the spring ball 306 can be re-embedded in the embedded groove 216, thereby maintaining the stability of the loading disk 300.

[0052] like Figure 8As shown, the inner bottom surface of the receiving groove 302 is provided with a slide rail 307 distributed along its own length direction, and the receiving box 303 slides in cooperation with the slide rail 307; the outer ends of the receiving box 303 are symmetrically provided with pull rods 308, the pull rods 308 are in the same length direction as the slide rail 307, the end of the pull rod 308 away from the receiving box 303 moves through the carrying disk 300 and extends to the outside of the carrying disk 300, and the outside of the pull rod 308 is also fitted with a correction spring 309, the two ends of the correction spring 309 abut against the inner wall of the receiving groove 302 and the outer wall of the receiving box 303 respectively, and in the natural state, the correction spring 309 is in a compressed state; the spring coefficients of the two correction springs 309 located on both sides of the receiving box 303 are the same, so in the natural state, the receiving box 303 is located in the middle position inside the receiving groove 302.

[0053] Furthermore, a column 310 is provided on the top surface of the base 100, located between the vibrating table 200 and the cloth hopper 400, such as... Figure 2 As shown, the top of the column 310 is provided with a baffle plate 311, which is higher than the vibrating table 200. When the loading disc 300 is located directly below the discharge pipe 402, the outer end of the corresponding pull rod 308 abuts against the baffle plate 311, and the corresponding receiving box 303 shifts toward the center of the rotating platform 203. After the loading disc 300 passes under the discharge pipe 402, under the action of the correction spring 309, the receiving box 303 can return to the middle position inside the receiving groove 302.

[0054] It is worth mentioning that, because the outer end of the pull rod 308 abuts against the baffle plate 311 when the loading disc 300 passes under the discharge pipe 402, the concrete discharged from the discharge pipe 402 can draw a C-shaped path inside the mold; while when the loading disc 300 passes under the discharge pipe 402 twice, because the loading disc 300 has rotated half a turn during the second pass, the concrete discharged from the discharge pipe 402 can draw an X-shaped path inside the mold, such as... Figure 15 As shown, this helps the concrete to be evenly distributed within the mold.

[0055] Additionally, the internal structure of the housing 303 is equipped with a lifting plate 312, such as... Figure 11As shown, lifting blocks 314 are symmetrically arranged on both sides of the bottom surface of the lifting plate 312. Two lifting holes 315 are opened through the bottom surface of the receiving box 303, and the two lifting blocks 314 are respectively embedded in the two lifting holes 315. A shaft hole 316 is opened through the rotating column 301 and located directly below the two lifting holes 315. A lifting rod 317 is movably inserted into the shaft hole 316. The bottom end of the lifting rod 317 is provided with a bulge 318. A lifting spring 313 is also sleeved on the outside of the lifting rod 317. The two ends of the lifting spring 313 are fixedly connected to the bottom surface of the rotating column 301 and the upper end of the bulge 318, respectively. In the natural state, the top end of the lifting rod 317 does not contact the lifting block 314, and the lifting spring 313 is used to maintain the position of the lifting rod 317.

[0056] The inner bottom surface of the vibration table 200 is provided with two lifting arc plates 217, such as... Figure 10 As shown, the center of the lifting arc plate 217 coincides with the central axis of the rotating platform 203. The top of the lifting arc plate 217 is provided with several spherical protrusions 218. When the loading disk 300 passes over the lifting arc plate 217, the two lifting rods 317 are respectively located directly above the two lifting arc plates 217, and the two bulges 318 intermittently contact the spherical protrusions 218 on the two lifting arc plates 217. It is worth mentioning that the spherical protrusions 218 on the two lifting arc plates 217 correspond one-to-one, and when the lifting rods 317 pass over the lifting arc plate 217, the two bulges 318 always contact the spherical protrusions 218 on the two lifting arc plates 217 at the same time. When the bulges 318 contact the spherical protrusions 218, the lifting plate 312 will also be lifted upward, thereby making the lifting plate 312 vibrate up and down.

[0057] In summary, in practical application, concrete is first poured into the placing hopper 400, and then four molds are placed into four receiving boxes 303 respectively. Then, the rotating platform 203 is driven to rotate at a constant speed by the drive motor 207. When the carrying disc 300 moves to the bottom of the discharge pipe 402, the valve plate 502 is raised under the action of the drive boss 213, and the discharge pipe 402 automatically discharges, thus pouring concrete into the mold. After the carrying disc 300 passes under the discharge pipe 402, the valve plate 502 automatically descends, causing the discharge pipe 402 to close again, thereby achieving intermittent material supply. After the drive column 304 passes the arc plate 214, the loading disc 300 automatically rotates half a turn, so that the other side of the mold faces the feeding hopper 400. When the rotating platform 203 carries the loading disc 300 to rotate two turns, all the molds can pass under the discharge pipe 402 twice, so that the concrete discharged from the discharge pipe 402 forms two arc paths in the mold.

[0058] In addition, when the loading disc 300 passes under the discharge pipe 402, the receiving box 303 will shift towards the side closer to the center of the rotating platform 203. When the rotating platform 203 rotates twice, the concrete discharged from the discharge pipe 402 can form an X-shaped path in the mold, which helps the concrete to be evenly distributed in the mold, thereby shortening the vibration time in the later stage. Meanwhile, each time the loading disc 300 passes under the discharge pipe 402, the discharge pipe 402 discharges a C-shaped path of concrete into the mold. When it passes a second time, the concrete of the two C-shaped paths will overlap, and the overlapping part will accumulate higher. The higher accumulation of concrete is prone to collapse quickly and form air bubbles during later vibration. To avoid this phenomenon, this embodiment also includes a lifting plate 312. Whenever the loading disc 300 passes over the lifting arc plate 217, the lifting plate 312 will vibrate up and down, thereby collapsing the concrete of the first C-shaped path. On the one hand, this can reduce the air mixed in inside the concrete, and on the other hand, it can perform pre-vibration in advance, shorten the later vibration time, and improve production efficiency.

[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibratory casting fixture for cable trough covers, comprising a base, characterized in that, Also includes: The vibration table has a box-shaped structure with an open top and a closed bottom. The vibration table is elastically connected to the top of the base by an elastic element. The bottom surface of the vibration table is equipped with a vibration motor. The inside of the vibration table is rotatably connected to a rotating platform. The upper surface of the rotating platform is evenly provided with several mounting holes. The number of the loading discs corresponds one-to-one with the mounting holes. The bottom surface of the loading disc is provided with a rotating column, which is inserted into the corresponding mounting hole and rotatably connected to it. The top surface of the loading disc is provided with a receiving groove, and a receiving box is provided in the receiving groove for placing the mold. The fabric hopper has a support fixedly mounted on its exterior. The support is fixedly connected to the top surface of the base. A discharge pipe is provided at the bottom of the fabric hopper and on the side facing the vibrating table. The discharge pipe is inclined downwards and the end of the discharge pipe is provided with a valve mechanism for controlling the opening and closing of the discharge pipe. The bottom end of the rotating column is provided with a driving column, and a rotating gear ring is fitted on the outside of the driving column. The inner bottom surface of the vibration table is provided with an arc-shaped plate, the center of which coincides with the central axis of the rotating platform. The inner surface of the arc-shaped plate is also provided with a rotating rack corresponding to the rotating gear ring. When the rotating column moves to a position directly opposite the arc-shaped plate, the rotating gear ring meshes with the rotating rack. After the rotating column passes the arc-shaped plate, the rotating column rotates 180°. The inner bottom surface of the receiving groove is provided with slide rails distributed along its own length direction, and the receiving box slides in cooperation with the slide rails; the outer ends of the receiving box are symmetrically provided with pull rods, the pull rods are aligned with the length direction of the slide rails, the end of the pull rod away from the receiving box moves through the carrying disk and extends to the outside of the carrying disk, and the outside of the pull rod is also fitted with a correction spring, the two ends of the correction spring abutting against the inner wall of the receiving groove and the outer wall of the receiving box respectively, and in the natural state, the correction spring is in a compressed state; A column is provided on the top surface of the base and between the vibrating table and the cloth hopper. A baffle plate is provided at the top of the column and the baffle plate is higher than the vibrating table. When the loading disc is located directly below the discharge pipe, the outer end of the corresponding pull rod abuts against the baffle plate, and the corresponding receiving box is offset toward the center of the rotating platform. The container is equipped with a lifting plate inside. The bottom surface of the lifting plate has symmetrically arranged lifting blocks on both sides. Two lifting holes are formed through the bottom surface of the container, and the two lifting blocks are respectively embedded in the two lifting holes. A shaft hole is formed through the rotating column, located directly below the two lifting holes. A lifting rod is movably inserted into the shaft hole. The bottom end of the lifting rod has a bulge, and a lifting spring is fitted around the outside of the lifting rod. The two ends of the lifting spring are fixedly connected to the bottom surface of the rotating column and the upper end of the bulge, respectively. The inner bottom surface of the vibration table has two lifting arc plates. The center of the corresponding circle of the lifting arc plate coincides with the central axis of the rotating platform. Several spherical protrusions are provided at the top of the lifting arc plates. When the carrying disc passes over the lifting arc plates, the two lifting rods are respectively located directly above the two lifting arc plates, and the two bulges intermittently contact the spherical protrusions on the two lifting arc plates.

2. The vibratory casting fixture for a cable trough cover plate according to claim 1, characterized in that: The vibration table has a positioning ring on its inner bottom surface, and the rotating platform has a main shaft at the center of its bottom surface. The main shaft is inserted into the positioning ring and the two rotate in coordination.

3. The vibratory casting fixture for a cable trough cover plate according to claim 1, characterized in that: A drive motor is provided on the outer side of the vibration table. A drive gear is provided on the output shaft of the drive motor. An opening is provided on the side wall of the vibration table near the drive motor. A driven gear is rotatably arranged in the opening. The driven gear meshes with the drive gear. A driven gear ring is also provided on the bottom surface of the rotating platform. The driven gear ring is arranged on the same central axis as the loading disk. The driven gear ring also meshes with the driven gear.

4. The vibratory casting fixture for a cable trough cover plate according to claim 1, characterized in that: The valve mechanism includes a mounting frame and a valve plate. The mounting frame is U-shaped and is also fixedly connected to the discharge pipe. A sealing groove is provided at the top of the discharge pipe and on the inner side of the mounting frame. The valve plate is inserted into the sealing groove from top to bottom.

5. The vibratory casting fixture for a cable trough cover plate according to claim 4, characterized in that: The valve plate has a valve stem at its top, which extends through the top wall of the mounting frame. A lifting plate is also provided at the top of the valve stem, and two lifting rods are fixedly mounted on the lifting plate. These lifting rods are inverted L-shapes, and their bottom ends share a common connecting piece. A roller is located at the bottom end of the connecting piece. A sealing spring is also fitted around the valve stem, with both ends abutting against the top wall of the mounting frame and the top wall of the valve plate, respectively. In its natural state, the sealing spring is compressed, and the valve plate is closed.

6. The vibratory casting fixture for a cable trough cover plate according to claim 5, characterized in that: The top surface of the rotating platform is provided with a drive frame corresponding to each of the loading discs. The top surface of the drive frame is provided with a drive boss. The drive boss is arc-shaped and has a shape that is low at both ends and high in the middle. The center of the circle corresponding to the drive boss coincides with the central axis of the rotating platform. When the loading disc is located directly below the end of the discharge pipe, the roller rolls and fits against the top of the corresponding drive boss, and the valve plate is in the open state.

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