Concrete prefabricated part pouring and vibrating equipment for fabricated small and medium-sized culvert gates

Abstract

The invention relates to the field of concrete forming, in particular to concrete prefabricated part pouring and vibrating equipment for assembled small and medium-sized culvert gates, which comprises a vibrating table, the vibrating table is composed of a base frame at the lower part and a table plate at the upper part, and the table plate is provided with a limiting mechanism for clamping the bending angle position of a mold. According to the directional pushing type vibrating device, the L-shaped clamping plate is matched with the adjusting assembly, the bent corner of the mold is clamped and fixed, relative sliding of the mold and the table plate in the vibrating process is effectively avoided, it is ensured that vibration energy is efficiently transmitted into concrete, and the vibration efficiency is improved. The adjusting assembly can adjust the position of the L-shaped clamping plate in a rough adjustment and fine adjustment combined mode so as to accurately adapt to molds of different sizes, energy generated by the vibration motor is directly transmitted to the L-shaped clamping plate through the linkage piece, the energy is further transmitted to the bent corner of the mold, and targeted vibration on the area is achieved.

Description

Technical Field

[0001] The invention relates to the field of concrete molding, and in particular to a concrete prefabricated part casting and vibrating device used for assembled medium and small culverts. Background Art

[0002] As an efficient and modular water conservancy facility, the core component of prefabricated small and medium-sized culverts, the square culvert components, play a key role in water flow guidance and structural support. Such prefabricated culverts are usually produced by concrete pouring technology, which has the advantages of high dimensional accuracy, short construction period and controllable quality. However, during the pouring process of the square culvert, it is necessary to continuously vibrate the concrete to expel the bubbles inside, so as to ensure its internal density and surface integrity.

[0003] At present, culvert prefabrication mostly adopts the technology of fixed mold casting combined with vibration table vibration. The vibration table causes the concrete to flow and expel bubbles through periodic vibration, thereby improving the density. The existing vibration table is usually composed of a base frame and a table plate. After the mold is placed on the table plate, the vibration motor is started to drive the table plate to vibrate, thereby transmitting the vibration to the concrete inside the mold through the table plate.

[0004] However, when the existing vibration table vibrates the concrete in the mold, the mold is generally simply placed on the table. Therefore, there is a relative slip between the table and the mold during vibration, which weakens the vibration energy. Secondly, the lower area of ​​the mold is blocked by the structure of the mold itself, making it difficult for bubbles to migrate horizontally. The traditional vibration table lacks a mechanism for directional pushing of bubbles, so the bubbles are naturally discharged only by the fluidity of the concrete, which is less efficient.

[0005] In addition, due to the complex geometric shape of the corners of the square culvert, bubbles are easily retained in the corners of the mold during vibration, resulting in insufficient local density. The existing vibration table mainly relies on the overall vibration effect and lacks targeted vibration at the corners of the mold, resulting in limited transmission of vibration energy to the corners of the square culvert, which can easily lead to defects such as decreased structural strength at the corners of the square culvert or surface honeycombing. Summary of the invention

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a concrete precast casting and vibration equipment for assembled small and medium-sized culverts, including a vibration table, the vibration table is composed of a lower base frame and an upper table plate, the table plate is provided with a limiting mechanism for clamping the bending angle position of the mold, and the vibration table is provided with an exhaust mechanism for directional pushing and vibrating the lower part of the mold.

[0007] The limiting mechanism includes two front-to-back symmetrically arranged clamping horizontal plates that are slidably arranged on the upper side of the vibration table. Each clamping horizontal plate is provided with an L-shaped clamping plate through an adjusting component. The adjusting component moves the position of the L-shaped clamping plate by combining coarse adjustment and fine adjustment. A bidirectional screw with a crank handle is rotatably provided on the upper left side of the table, and the bidirectional screw is threadedly connected to the two clamping horizontal plates.

[0008] The exhaust mechanism includes two rectangular frames that slide left and right on the upper part of the base frame through a driving component. Three front-to-back arranged conduction components that can adjust the amount of vibration energy to be transmitted are provided on the upper side of the rectangular frame. The conduction components are all attached to the table plate, and the conduction components at the front and rear sides are connected to the clamping cross plate at the corresponding position through a linkage. The exhaust mechanism also includes a bubble pushing component that progressively adjusts the vibration transmission amplitude according to the vibration position and is used to push away the gathered bubbles. A vibration motor is fixedly installed on the rectangular frame.

[0009] Preferably, the adjustment assembly includes two groups of symmetrically arranged fixing studs fixedly mounted on the upper side of the clamping cross plate, each group consisting of a plurality of fixing studs arranged in a matrix, and an adjustable support plate is fixedly connected to the upper side of the clamping cross plate by means of plugging the fixing studs and locking them with nuts, and a laterally arranged waist-shaped groove is provided on the adjustable support plate, and the adjustable support plate is fixedly connected to the L-shaped clamp plate by bolts that are inserted through the waist-shaped groove and the L-shaped clamp plate.

[0010] Preferably, the driving assembly includes two symmetrically arranged transverse sliding plates which are slid left and right on the upper side of the base frame, the upper part of the transverse sliding plates is fixedly connected to the rectangular frame at the corresponding position through a rubber pad, a driving screw is rotatably arranged on the upper side of the base frame, two symmetrically arranged reciprocating threads are arranged on the driving screw, the driving screw is threadedly connected to the two transverse sliding plates, a synchronous motor is fixedly installed on the upper right side of the base frame, and the output shaft of the synchronous motor is fixedly connected to the driving screw.

[0011] Preferably, the conduction component includes a base plate seat, a middle base plate seat is fixedly connected to the rectangular frame, and the base plate seats on the front and rear sides are slidably connected to the rectangular frame along the front and rear directions. The upper side of the base plate seat is connected to a contact plate through a limiting guide rod, and the limiting guide rod is inserted into the base plate seat up and down, and a gap is left between the outer side of the limiting guide rod and the base plate seat.

[0012] Preferably, the conduction component also includes a pre-tightening stud threadedly connected to the center position of the base plate seat, a tray is rotatably arranged on the upper side of the pre-tightening stud, a coil spring is arranged between the tray and the contact plate, and the coil spring pushes the upper side of the contact plate tightly against the table plate through its own elastic force.

[0013] Preferably, the linkage member is in a T-shaped structure, the vertical section of the linkage member is fixedly connected to the clamping horizontal plate at the corresponding position, and the horizontal section of the linkage member is slidably connected to the two bottom plate seats at the corresponding positions.

[0014] Preferably, the bubble pushing assembly includes four groups of positioning guide pillars, each group consists of a number of positioning guide pillars fixedly connected to the lower side of the table, the four groups of positioning guide pillars are arranged in a matrix, each group of positioning guide pillars is connected to an extrusion plate for sliding up and down together, a gap is left between the outer side of the positioning guide pillars and the extrusion plate, a compression spring is commonly arranged between the extrusion plate and the table, the lower side surface of the extrusion plate is an inclined structure which gradually inclines from bottom to top toward the middle of the table, and two pushing members located at the lower part of the corresponding extrusion plate are arranged on the upper side of the rectangular frame for sliding up and down.

[0015] Preferably, the bubble pushing assembly also includes two support plate frames fixedly mounted on the upper side of the base frame and arranged symmetrically front and back, two guide plates fixedly mounted symmetrically left and right on the upper side of the support plate frames, the guide plates are located at the lower part of the extrusion plate members at corresponding positions, two L-shaped track plates fixedly mounted symmetrically front and back on the guide plates, and rollers are rotatably provided on both the front and rear sides of the lower part of the pushing member.

[0016] Preferably, the portion of the guide plate close to the middle of the platform is higher than the portion away from the middle of the platform, a wheel frame member is provided on the lower side of the push member for sliding up and down, a walking wheel that rolls on the side of the corresponding guide plate is rotatably provided on the lower part of the wheel frame member, and a return spring is provided between the wheel frame member and the push member.

[0017] Preferably, the front and rear sides of the upper part of the pusher are fixedly mounted with blocking blocks, the front and rear sides of the extruded plate are fixedly mounted with track strips, the track strips are arranged parallel to the inclined surface of the extruded plate, and the blocking blocks are provided with rectangular grooves for inserting the track strips.

[0018] The beneficial effects of the present invention are as follows: 1. The present invention adopts the cooperation of the L-shaped clamping plate and the adjusting component to clamp and fix the bending corners of the mold, effectively avoiding the relative slippage of the mold and the table during vibration, ensuring that the vibration energy is efficiently transmitted to the interior of the concrete, and the adjusting component can adjust the position of the L-shaped clamping plate by combining coarse adjustment and fine adjustment, so as to accurately adapt to molds of different sizes.

[0019] 2. The present invention adopts a linkage to transmit the energy generated by the vibration motor directly to the L-shaped clamping plate, and further transmits it to the corner of the mold, so as to achieve targeted vibration of the area, break through the limitations of traditional overall vibration, significantly improve the fluidity of concrete at the corner, reduce bubble retention, and through the linkage, the position of the conduction components on the front and rear sides can be automatically adjusted to the lower part of the mold, so that the vibration energy is concentrated and transmitted to the mold, thereby ensuring the effect of vibration.

[0020] 3. The present invention adopts a bubble pushing component which is guided by the progressive height change of the guide plate and combined with the power of the driving screw, so that the pushing member can perform asymmetrical reciprocating movement, thereby directional pushing of the bubbles in the horizontal direction, and gradually tightening the compression spring during movement can gradually enhance the vibration transmission amplitude, thereby gradually increasing the vibration transmission amplitude according to the gradually accumulated bubbles, so that the bubble migration and vibration energy enhancement are coordinated, further accelerating the discharge of bubbles and improving the overall density of concrete.

[0021] Fourth, the present invention adopts the different vibration energy transmission effects of three conduction components on the same rectangular frame to gather the bubbles in the bottom area of ​​the mold to the middle position, prevent the bubbles from gathering in the corners of the mold, increase the bubble removal effect, and combine with the vibration energy adjustment function of the conduction component to flexibly adjust the amplitude of vibration transmission, thereby adapting to different vibration requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a cross-sectional view of the tabletop, the limiting mechanism and the linkage member in the present invention.

[0025] Figure 3 It is a cross-sectional view of the vibration table and the exhaust mechanism in the present invention.

[0026] Figure 4 It is a side view of the transverse sliding plate, rectangular frame and conductive component in the present invention.

[0027] Figure 5 It is a partial structural schematic diagram of the table plate, extruded plate, guide rail plate and support plate frame in the present invention.

[0028] Figure 6 It is a cross-sectional view of the extruded plate, the guide rail plate, the pushing member and the wheel frame member in the present invention.

[0029] In the figure: 1, vibration table; 2, limit mechanism; 3, exhaust mechanism; 11, base frame; 12, table; 21, clamping horizontal plate; 22, adjustment component; 23, L-shaped clamping plate; 24, bidirectional screw; 31, driving component; 32, rectangular frame; 33, transmission component; 34, linkage; 35, bubble pushing component; 36, vibration motor; 37, wheel frame; 221, fixed stud; 222, adjustable support plate; 311, horizontal slide Shift plate; 312, drive screw; 313, synchronous motor; 331, base plate seat; 332, limit guide rod; 333, resistance plate; 334, pre-tightening stud; 335, tray; 351, positioning guide column; 352, extrusion plate; 353, pusher; 354, support plate frame; 355, guide plate; 356, L-shaped track plate; 357, roller; 371, walking wheel; 372, positioning block; 373, track strip. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. If no specific techniques or conditions are specified in the embodiments, the techniques or conditions described in the literature in the art or the product specifications are used.

[0031] See also Figure 1 A concrete precast casting and vibrating device for assembled small and medium-sized culverts includes a vibrating table 1, which is composed of a lower base frame 11 and an upper table plate 12. The table plate 12 is provided with a limiting mechanism 2 for clamping the bending angle position of the mold, and the vibrating table 1 is provided with an exhaust mechanism 3 for directional pushing and vibrating the lower part of the mold.

[0032] When it is necessary to vibrate the culvert prefabricated parts during pouring, first place the mold on the upper part of the table 12, clamp and fix the mold at the corners by the limiting mechanism 2, and at the same time, let the limiting mechanism 2 push the mold to the center position of the table 12, then vibrate the table 12 through the exhaust mechanism 3, and the table 12 vibrates the concrete prefabricated parts inside it through the mold. At the same time, the exhaust mechanism 3 also transmits the vibration energy directly to the corners of the mold through the limiting mechanism 2, thereby increasing the fluidity of the concrete at the corners of the mold, and performing targeted vibration on the positions of the mold with poor concrete fluidity.

[0033] The exhaust mechanism 3 can also perform asymmetric pushing and vibrating on the table 12 in a gradually increasing manner, thereby gathering the bubbles in the concrete in the bottom area of ​​the mold and pushing them to both sides, so that the bubbles move to both sides of the mold, thereby avoiding the mold's own structure from blocking the bubbles, and then the bubbles migrate upward on both sides of the mold to the outside of the mold, thereby ensuring the vibration effect on the culvert prefabricated parts.

[0034] See also Figure 1 and Figure 2 The limiting mechanism 2 includes two front-to-back symmetrically arranged clamping horizontal plates 21 which are slidably arranged on the upper side of the vibration table 1. Each clamping horizontal plate 21 is provided with an L-shaped clamping plate 23 through an adjusting component 22. The adjusting component 22 moves the position of the L-shaped clamping plate 23 by combining coarse adjustment and fine adjustment. A bidirectional screw 24 with a crank is rotatably provided on the upper left side of the table plate 12. The bidirectional screw 24 is threadedly connected to the two clamping horizontal plates 21.

[0035] Continue reading Figure 1 and Figure 2 The adjustment component 22 includes two groups of symmetrically arranged fixing studs 221 fixedly installed on the upper side of the clamping cross plate 21, each group is composed of a plurality of fixing studs 221 arranged in a matrix, and an adjustable support plate 222 is fixedly connected to the upper side of the clamping cross plate 21 by plugging the fixing studs 221 and locking them with nuts. The adjustable support plate 222 is provided with a laterally arranged waist-shaped groove, and the adjustable support plate 222 is fixedly connected to the L-shaped clamp plate 23 by bolts inserted through the waist-shaped groove and the L-shaped clamp plate 23.

[0036] When the culvert prefabricated part needs to be vibrated, the operator transports the mold to the center position of the upper part of the table 12 through the lifting equipment, and then inserts the adjustable support plate 222 into the fixed stud 221 at the corresponding position according to the length and height of the mold, and then fixes the adjustable support plate 222 and the clamping cross plate 21 together by tightening the nut. Then the operator fixes the L-shaped clamping plate 23 to the adjustable support plate 222 by bolting, so that the bolt rod passes through the waist-shaped groove, and accurately adjusts the position of the L-shaped clamping plate 23 by moving the bolt rod left and right on the waist-shaped groove.

[0037] Then the operator manually rotates the bidirectional screw 24, and the bidirectional screw 24 drives the two clamping cross plates 21 to approach each other until they are clamped on the mold. At this time, the clamping cross plate 21 drives the L-shaped clamping plate 23 to be clamped on the mold through the adjustable support plate 222, so that the two sides of the L-shaped clamping plate 23 facing the center position of the table 12 are tightly against the corresponding sides of the mold, thereby locking the mold and the table 12 together to prevent relative slippage between the table 12 and the mold when vibrating, thereby ensuring the transmission effect of vibration energy.

[0038] See also Figure 1 , Figure 2 , Figure 3 and Figure 4The exhaust mechanism 3 includes two rectangular frames 32 that slide left and right on the upper part of the base frame 11 through a driving component 31. Three front-to-back arranged conduction components 33 that can adjust the vibration energy transmission are arranged on the upper side of the rectangular frame 32. The conduction components 33 are all attached to the table 12. The conduction components 33 at the front and rear sides are connected to the clamping cross plate 21 at the corresponding position through a linkage 34. A vibration motor 36 is fixedly installed on the rectangular frame 32.

[0039] See also Figure 3 and Figure 4 The conducting component 33 includes a base plate seat 331, the middle base plate seat 331 is fixedly connected to the rectangular frame 32, the base plate seats 331 on the front and rear sides are slidably connected to the rectangular frame 32 along the front and rear directions, and the upper side of the base plate seat 331 is connected to a contact plate 333 through a limiting guide rod 332, the limiting guide rod 332 is inserted into the base plate seat 331 up and down, and a gap is left between the outer side of the limiting guide rod 332 and the base plate seat 331.

[0040] It should be noted that the gap between the limiting guide rod 332 and the bottom plate seat 331 is to prevent the vibration energy from being directly transmitted to the abutment plate 333 through the limiting guide rod 332 .

[0041] Continue reading Figure 3 and Figure 4 The conduction component 33 also includes a pre-tightening stud 334 threadedly connected to the center position of the base plate seat 331, and a tray 335 is rotatably arranged on the upper side of the pre-tightening stud 334. A coil spring is arranged between the tray 335 and the contact plate 333. The coil spring pushes the upper side of the contact plate 333 to be tightly attached to the table 12 through its own elastic force.

[0042] See also Figure 1 , Figure 2 and Figure 3 The linkage member 34 is in a T-shaped structure, the vertical section of the linkage member 34 is fixedly connected to the clamping horizontal plate 21 at the corresponding position, and the horizontal section of the linkage member 34 is slidably connected to the two bottom plate seats 331 at the corresponding position.

[0043] When the L-shaped clamp 23 is clamped on the mold, the clamping cross plate 21 drives the two base plate seats 331 at corresponding positions to move synchronously to the lower part of the mold through the linkage 34, so as to quickly adjust the positions of the base plate seats 331 on the front and rear sides. Then, according to the demand for vibration energy, the operator manually rotates the pre-tightening stud 334 so that the pre-tightening stud 334 drives the tray 335 to move upward relative to the base plate seat 331. Since the contact plate 333 is tightly attached to the table 12, the contact plate 333 is blocked by the table 12 and cannot move upward, thereby moving the tray 335 to compress the coil spring at the corresponding position.

[0044] The greater the compression of the coil spring, the smaller the elastic deformation of the coil spring, which makes the rigid connection between the tray 335 and the contact plate 333 stronger, so that the base plate seat 331 transmits more vibration energy to the contact plate 333 through the tray 335. The operator manually turns the preload stud 334 and makes the compression of the coil springs on the front and rear sides of the same rectangular frame 32 greater than the compression of the coil spring in the middle, that is, the vibration of the front and rear sides of the bottom of the mold is greater than the vibration of the middle, so as to push the bubbles on the front and rear sides of the mold to the middle position in a directional manner, prevent the bubbles from gathering in the corners of the mold, and increase the bubble removal effect.

[0045] Then, the vibration motor 36 is started, so that the vibration motor 36 transmits the vibration to the base plate seat 331 through the rectangular frame 32. The base plate seat 331 transmits the vibration energy to the lower part of the mold in a manner of larger vibration at the front and rear sides and smaller vibration at the middle part, thereby directionally pushing the bubbles at the front and rear sides of the mold to the middle position. At the same time, the base plate seat 331 at the front and rear sides transmits the vibration energy directly to the L-shaped clamping plate 23 through the linkage 34, the clamping cross plate 21 and the adjustable support plate 222, and then further transmits the vibration energy to the mold corner, thereby achieving targeted vibration to the area, significantly improving the fluidity of concrete at the corner, and reducing bubble retention.

[0046] See also Figure 1 , Figure 3 , Figure 5 and Figure 6 The exhaust mechanism 3 also includes a bubble pushing component 35 for pushing away the gathered bubbles, which is capable of progressively adjusting the vibration transmission amplitude according to the vibration position. The bubble pushing component 35 includes four groups of positioning guide pillars 351, each group of which is composed of a number of positioning guide pillars 351 fixedly connected to the lower side of the table 12. The four groups of positioning guide pillars 351 are arranged in a matrix, and each group of positioning guide pillars 351 is connected with an extrusion plate 352 which is slidably connected up and down. A gap is left between the outer side of the positioning guide pillars 351 and the extrusion plate 352 to prevent the vibration energy from being directly transmitted to the extrusion plate 352 through the positioning guide pillars 351. A compression spring is commonly arranged between the extrusion plate 352 and the table 12. The lower side surface of the extrusion plate 352 is an inclined structure which is gradually inclined from bottom to top toward the middle of the table 12. Two pushing members 353 located at the lower part of the corresponding extrusion plate 352 are slidably arranged on the upper side of the rectangular frame 32.

[0047] See also Figure 3 , Figure 5 and Figure 6The bubble pushing component 35 also includes two support plate frames 354 fixedly mounted on the upper side of the base frame 11 and arranged symmetrically in the front and rear. Two guide plates 355 arranged symmetrically in the left and right are fixedly mounted on the upper side of the support plate frames 354. The guide plates 355 are located at the lower part of the extrusion plate 352 at the corresponding position. Two L-shaped track plates 356 arranged symmetrically in the front and rear are fixedly mounted on the guide plates 355. Rollers 357 are rotatably arranged on both the front and rear sides of the lower part of the pushing member 353.

[0048] See also Figure 5 and Figure 6 The portion of the guide plate 355 close to the middle of the table 12 is higher than the portion away from the middle of the table 12. A wheel frame member 37 is provided on the lower side of the push member 353 for sliding up and down. A walking wheel 371 is rotatably provided at the lower part of the wheel frame member 37 for rolling on the side surface of the corresponding guide plate 355. A return spring is provided between the wheel frame member 37 and the push member 353.

[0049] Continue reading Figure 5 and Figure 6 The front and rear sides of the upper part of the push member 353 are fixedly installed with a positioning block 372, and the front and rear sides of the extrusion plate 352 are fixedly installed with a track strip 373. The track strip 373 is arranged parallel to the inclined surface of the extrusion plate 352, and a rectangular groove for inserting the track strip 373 is opened on the positioning block 372.

[0050] See also Figure 3 The driving assembly 31 includes two symmetrically arranged transverse sliding plates 311 that are slidably arranged on the upper side of the base frame 11. The upper part of the transverse sliding plate 311 is fixedly connected to the rectangular frame 32 at the corresponding position through a rubber pad. A driving screw 312 is rotatably arranged on the upper side of the base frame 11. The driving screw 312 is provided with two symmetrically arranged reciprocating threads. The driving screw 312 is threadedly connected to the two transverse sliding plates 311. A synchronous motor 313 is fixedly installed on the upper right side of the base frame 11, and the output shaft of the synchronous motor 313 is fixedly connected to the driving screw 312.

[0051] In the initial state, the lateral sliding plate 311 drives the two rectangular frames 32 to be located near the middle of the table top 12, and the walking wheel 371 is located on the upper part of the guide plate 355 at the corresponding position, close to the side of the middle of the table top 12. The guide plate 355 drives the wheel frame member 37 to squeeze the return spring at the corresponding position upward by pushing the walking wheel 371 upward. The return spring pushes the pushing member 353 upward through its own elastic force, so that the upper side surface of the pushing member 353 rests on the lower side surface of the extrusion plate member 352 at the corresponding position. At the same time, the pushing member 353 drives the roller 357 thereon to be located at the upper part of the horizontal section of the L-shaped track plate 356.

[0052] When the vibration motor 36 is started, the synchronous motor 313 is started at the same time, and the synchronous motor 313 drives the driving screw 312 to rotate, and the driving screw 312 synchronously drives the two lateral sliding plates 311 to move back and forth left and right, and the lateral sliding plates 311 drive the rectangular frame 32 thereon to move synchronously. When the rectangular frame 32 moves away from the middle of the table plate 12, the rectangular frame 32 drives the resistance plate 333 to move synchronously through the bottom plate seat 331, so that the resistance plate 333 pushes the bubbles at the front and rear positions of the bottom of the mold to the middle of the mold and gathers them, and at the same time gradually pushes the bubbles gathered in the center position of the bottom of the mold to the left and right sides of the mold.

[0053] At the same time, the rectangular frame 32 drives the pusher 353 and the wheel frame 37 thereon to move synchronously, so that the pusher 353 drives the roller 357 thereon to move to the upper part of the horizontal section of the L-shaped track plate 356, so that the horizontal section of the L-shaped track plate 356 supports the pusher 353 by blocking the roller 357, preventing the pusher 353 from moving downward, and the pusher 353 pushes the extrusion plate 352 upward by contacting the inclined surface of the extrusion plate 352, and gradually compresses the compression spring, so that the rectangular frame 32 is pushed by the pusher 353, the extrusion plate 352, and the compression spring is gradually compressed. The pressure plate member 352 and the compression spring transmit the vibration to the table plate 12, thereby vibrating the mold, and as the rectangular frame 32 gradually pushes the bubbles away from the middle of the table plate 12 through the resistance plate 333, the bubbles begin to gather continuously, and at the same time, the pushing member 353 synchronously and continuously presses the compression spring upward, thereby gradually increasing the vibration energy transmitted to the table plate 12 by the rectangular frame 32, thereby applying gradually increasing vibration to the gradually gathered bubbles, so that the bubble migration and vibration energy enhancement are coordinated, further accelerating the discharge of bubbles and improving the overall density of the concrete.

[0054] When the pushing member 353 starts to move away from the middle of the platform 12, the pushing member 353 drives the locking block 372 thereon to move toward the direction of the track strip 373 at the corresponding position, so that the track strip 373 is inserted into the rectangular groove of the locking block 372, so that the pushing member 353 is slidably connected with the extrusion plate 352 through the locking block 372, thereby increasing the effect of vibration transfer.

[0055] When the push member 353 drives the wheel frame member 37 to move to the lower part of the guide plate 355, the wheel frame member 37 moves downward under the action of gravity, so that the return spring returns to a fully extended state, and at this time the wheel frame member 37 drives the walking wheel 371 to be suspended in the air without contacting the guide plate 355.

[0056] When the lateral sliding plate 311 moves to the end of the driving screw 312 away from the middle of the table 12, the locking block 372 moves to the side of the track strip 373 away from the middle of the table 12, so that the locking block 372 is out of contact with the track strip 373, and at the same time, the roller 357 moves to the side of the L-shaped track plate 356 away from the middle of the table 12, so that the horizontal section of the L-shaped track plate 356 no longer blocks the roller 357.

[0057] Subsequently, the pushing member 353 and the wheel frame member 37 fall under the action of gravity until the walking wheel 371 rests on the guide plate 355. At this time, the pushing member 353 drives the roller 357 to move downward to the lower part of the horizontal section of the L-shaped track plate 356, and the pushing member 353 no longer contacts the extrusion plate 352. At the same time, the compression spring pushes the extrusion plate 352 to move downward to the initial position.

[0058] Then the driving screw 312 drives the lateral sliding plate 311 to start moving toward the middle of the table 12, so that the pushing member 353 drives the roller 357 thereon to move to the lower part of the horizontal section of the L-shaped track plate 356. When the walking wheel 371 moves to a higher position of the guide plate 355, the guide plate 355 pushes the wheel frame member 37 upward, and the wheel frame member 37 pushes the pushing member 353 through the return spring, so that the pushing member 353 drives the roller 357 to rest against the lower side of the horizontal section of the L-shaped track plate 356, thereby preventing the pushing member 353 from contacting the extrusion plate 352.

[0059] When the transverse sliding plate 311 moves to the initial position close to the middle of the table 12, the roller 357 moves to the side of the horizontal section of the L-shaped track plate 356 close to the middle of the table 12, so that the horizontal section of the L-shaped track plate 356 no longer blocks the pushing member 353, and then the return spring pushes the pushing member 353 upward to the initial position, so that when the transverse sliding plate 311 moves in the direction away from the middle of the table 12, the extrusion plate 352 is vibrated in a gradually increasing manner, and when the transverse sliding plate 311 moves in the direction close to the middle of the table 12, the extrusion plate 352 is not vibrated, thereby avoiding reverse disturbance to the bubbles that have migrated to the middle, ensuring that the bubbles are stably discharged along the set path.

[0060] Then, the extrusion plate 352 is intermittently connected through the reciprocating pusher 353, and the mold is vibrated asymmetrically with increasing intensity to accelerate the discharge of bubbles and improve the overall density of the concrete.

[0061] See also Figure 1-Figure 6When vibrating the culvert prefabricated part, the present invention also includes the following steps: In the first step, the operator transports the mold to the center position on the upper part of the table 12 through the lifting equipment, and then fixes the L-shaped clamping plate 23 to the clamping cross plate 21 according to the length and height of the mold, and then rotates the bidirectional screw 24 to drive the L-shaped clamping plate 23 to clamp and lock the corner of the mold.

[0062] In the second step, the pre-tightening stud 334 is rotated according to the demand for vibration energy, so that the pre-tightening stud 334 adjusts the vibration energy transmitted from the tray 335 to the contact plate 333 by means of the pre-tightening coil spring, and makes the compression of the coil springs on the front and rear sides of the same rectangular frame 32 greater than the compression of the coil spring in the middle.

[0063] The third step is to start the vibration motor 36 so that the vibration energy is transmitted to the lower part of the mold in a manner that the front and rear sides are larger and the middle part is smaller, thereby directionally pushing the bubbles on the front and rear sides of the mold to the middle position. At the same time, the bottom plate seat 331 on the front and rear sides transmits the vibration energy to the mold corner through the L-shaped clamping plate 23, thereby achieving targeted vibration in this area, significantly improving the fluidity of the concrete at the corner, and reducing bubble retention.

[0064] The fourth step is to start the synchronous motor 313 to drive the two lateral sliding plates 311 to move back and forth left and right, so that when the lateral sliding plate 311 moves in the direction away from the middle of the table plate 12, the extrusion plate 352 is vibrated in a gradually increasing manner, and when the lateral sliding plate 311 moves in the direction close to the middle of the table plate 12, the extrusion plate 352 is not vibrated, thereby avoiding reverse disturbance to the bubbles that have migrated to the middle, ensuring that the bubbles are stably discharged along the set path.

[0065] The fifth step is to continuously perform asymmetric and gradually increasing vibration on the mold through the intermittent connection of the reciprocating pusher 353 to the extrusion plate 352, so as to accelerate the discharge of bubbles and improve the overall density of the concrete.

[0066] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention and they are still covered by the protection scope of the present invention.

Claims

1. A concrete prefabricated casting and vibrating device for assembled small and medium-sized culverts, comprising a vibrating table, the vibrating table consisting of a lower base frame and an upper table plate, characterized in that: The table is provided with a limit mechanism for clamping the bending angle position of the mold, and the vibration table is provided with an exhaust mechanism for directional pushing and vibrating the lower part of the mold; The limiting mechanism includes two front-to-back symmetrically arranged clamping horizontal plates which are slidably arranged on the upper side of the vibration table, each clamping horizontal plate is provided with an L-shaped clamping plate through an adjustment component, and the adjustment component moves the position of the L-shaped clamping plate by combining coarse adjustment and fine adjustment, and a bidirectional screw with a crank is rotatably arranged on the upper left side of the table, and the bidirectional screw is threadedly connected with the two clamping horizontal plates; The exhaust mechanism includes two rectangular frames that slide left and right on the upper part of the base frame through a driving component. Three front-to-back arranged conduction components that can adjust the amount of vibration energy to be transmitted are provided on the upper side of the rectangular frame. The conduction components are all attached to the table plate, and the conduction components at the front and rear sides are connected to the clamping cross plate at the corresponding position through a linkage. The exhaust mechanism also includes a bubble pushing component that progressively adjusts the vibration transmission amplitude according to the vibration position and is used to push away the gathered bubbles. A vibration motor is fixedly installed on the rectangular frame.

2. The concrete prefabricated casting and vibrating equipment for assembled small and medium-sized culverts according to claim 1 is characterized in that: The adjustment assembly includes two groups of fixed studs arranged symmetrically on the upper side of the clamping cross plate, each group is composed of a number of fixed studs arranged in a matrix, the upper side of the clamping cross plate is fixedly connected with an adjustable support plate by means of plugging the fixed studs and locking them with nuts, the adjustable support plate is provided with a laterally arranged waist-shaped groove, and the adjustable support plate is fixedly connected to the L-shaped clamp plate by bolts that are inserted through the waist-shaped groove and the L-shaped clamp plate.

3. The concrete precast casting and vibrating equipment for assembled small and medium-sized culverts according to claim 1 is characterized in that: The driving assembly includes two symmetrically arranged transverse sliding plates which are slidably arranged on the upper side of the base frame. The upper parts of the transverse sliding plates are fixedly connected to the rectangular frames at corresponding positions through rubber pads. A driving screw is rotatably arranged on the upper side of the base frame. The driving screw is provided with two symmetrically arranged reciprocating threads. The driving screw is threadedly connected to the two transverse sliding plates. A synchronous motor is fixedly installed on the upper right side of the base frame, and the output shaft of the synchronous motor is fixedly connected to the driving screw.

4. The concrete precast casting and vibrating device for assembled small and medium-sized culverts according to claim 1 is characterized in that: The conduction component includes a base plate seat, a middle base plate seat fixedly connected to a rectangular frame, and base plate seats on both sides of the front and rear are slidably connected to the rectangular frame along the front and rear directions. A contact plate is connected to the upper side of the base plate seat through a limiting guide rod, and the limiting guide rod is inserted up and down on the base plate seat, and a gap is left between the outer side of the limiting guide rod and the base plate seat.

5. The concrete prefabricated casting and vibrating equipment for assembled small and medium-sized culverts according to claim 4 is characterized in that: The conduction component also includes a pre-tightening stud threadedly connected to the center position of the base plate seat, a tray is rotatably arranged on the upper side of the pre-tightening stud, a coil spring is arranged between the tray and the contact plate, and the coil spring pushes the upper side of the contact plate tightly against the table plate through its own elastic force.

6. The concrete prefabricated casting and vibrating equipment for assembled small and medium-sized culverts according to claim 4 is characterized in that: The linkage member is in a T-shaped structure, the vertical section of the linkage member is fixedly connected to the clamping horizontal plate at the corresponding position, and the horizontal section of the linkage member is slidably connected to the two bottom plate seats at the corresponding positions.

7. The concrete prefabricated casting and vibrating equipment for assembled small and medium-sized culverts according to claim 1 is characterized in that: The bubble pushing assembly includes four groups of positioning guide pillars, each group is composed of a number of positioning guide pillars fixedly connected to the lower side of the table, the four groups of positioning guide pillars are arranged in a matrix, each group of positioning guide pillars is connected with an extrusion plate for sliding up and down together, a gap is left between the outer side of the positioning guide pillars and the extrusion plate, a compression spring is arranged between the extrusion plate and the table, the lower side surface of the extrusion plate is an inclined structure that gradually inclines from bottom to top toward the middle of the table, and two pushing members located at the lower part of the corresponding extrusion plate are arranged on the upper side of the rectangular frame for sliding up and down.

8. The concrete precast casting and vibrating device for assembled small and medium-sized culverts according to claim 7 is characterized in that: The bubble pushing assembly also includes two support plate frames fixedly mounted on the upper side of the base frame and arranged symmetrically front and back, two guide plates fixedly mounted symmetrically left and right on the upper side of the support plate frames, the guide plates are located at the lower part of the extrusion plate at the corresponding position, two L-shaped track plates fixedly mounted on the guide plates and arranged symmetrically front and back, and rollers are rotatably arranged on both the front and rear sides of the lower part of the pushing member.

9. The concrete prefabricated casting and vibrating device for assembled small and medium-sized culverts according to claim 8, characterized in that: The portion of the guide plate close to the middle of the platform is higher than the portion away from the middle of the platform, a wheel frame is provided on the lower side of the pusher to slide up and down, a walking wheel that rolls on the side of the corresponding guide plate is rotatably provided on the lower part of the wheel frame, and a return spring is provided between the wheel frame and the pusher.

10. The concrete precast casting and vibrating device for assembled small and medium-sized culverts according to claim 7, characterized in that: The front and rear sides of the upper part of the pusher are fixedly installed with positioning blocks, the front and rear sides of the extruded plate are fixedly installed with track strips, the track strips are arranged parallel to the inclined surface of the extruded plate, and the positioning blocks are provided with rectangular grooves for inserting the track strips.

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