A vibrating table for making dry-mix mortar

Abstract

The present invention discloses a vibration table for making dry-mixed mortar, which belongs to the technical field of vibration equipment. The vibration table for making dry-mixed mortar includes a frame, a vibration table surface, a vibration mechanism, a test mold, a crossbeam, a lifting mechanism, a fixed rod, a fan-shaped plate, and an unfolding mechanism. The unfolding mechanism is used to drive a plurality of fan-shaped plates on the fixed rod to unfold when the crossbeam moves downward to a fixed position. The lifting mechanism in the present invention drives the crossbeam to move downward, so that the fixed rod drives the fan-shaped plate to move downward. When it moves downward to a fixed position, the fan-shaped plate enters the test mold, and then the unfolding mechanism drives the plurality of fan-shaped plates on the fixed rod to unfold to a horizontal state. After the fan-shaped unfolding, a disc-shaped structure is formed and contacts with the inner cavity wall of the test mold, and the inside of the test mold is sealed to a certain extent, so that the fan-shaped plate has a blocking effect on the dry-mixed mortar in the upper layer of the test mold, and avoids the dry-mixed mortar in the upper layer of the test mold from splashing out during the vibration process.

Description

Technical Field

[0001] The invention belongs to the technical field of vibration equipment, and in particular relates to a vibration compaction table for making dry-mix mortar. Background Art

[0002] The vibration table, also known as a vibrating platform, is a device widely used in many industries. It is mainly used to vibrate materials to reduce air and gaps in the materials. It is usually used in conjunction with a silo. The scope of use of the vibration table includes metallurgy, mold / food, chemical industry, building materials and other industries. During the production of dry-mixed mortar test blocks, a trial mold is required, that is, the dry-mixed mortar adjusted in proportion is poured into the test mold, and then the test mold is placed on the vibration table for vibration, and finally a dry-mixed mortar test block with a relatively dense interior is obtained.

[0003] In the prior art, when the dry-mixed mortar in the test mold is vibrated, the top of the test mold is usually open, and since the test mold is directly placed on the compaction table of the compaction equipment, when the vibration amplitude of the compaction table is large, the dry-mixed mortar in the upper layer of the test mold is likely to splash. In addition, since it is at the top layer of the test mold and is not subjected to downward pressure, the amplitude is often large and it is not easy to tightly combine with the dry-mixed mortar at other positions in the inner layer of the test mold, or it cannot be quickly mixed with the dry-mixed mortar at other positions inside the test mold to form a more compact dry-mixed mortar. Therefore, it is necessary to improve the compaction table required for the dry-mixed mortar test block test mold in the prior art. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a vibrating table for making dry-mix mortar.

[0005] The technical solution adopted to solve the above technical problems is: a vibrating table for making dry-mixed mortar, comprising a frame of the vibrating table, a vibrating table top is provided above the frame, the frame and the vibrating table top are connected by a vibration mechanism, and a plurality of trial molds are placed in the vibrating table top, and also includes:

[0006] A plurality of beams are arranged above the vibration table, and the beams are driven to move vertically by a lifting mechanism installed on the vibration table;

[0007] A plurality of fixing rods vertically and fixedly arranged on the crossbeam, wherein the lower ends of the fixing rods correspond to the trial mold;

[0008] A plurality of fan-shaped plates are hinged to the lower end of the fixing rod, and when the plurality of fan-shaped plates on the fixing rod are rotated upward to an unfolded state, a disc-shaped structure is formed, and the outer diameter of the disc-shaped structure matches the inner diameter of the test mold;

[0009] An unfolding mechanism is arranged on the vibration table, and is used for driving the plurality of fan-shaped plates on the fixing rod to unfold when the crossbeam moves downward to a fixed position.

[0010] Through the above technical scheme, the lifting mechanism drives the crossbeam to move downward, so that the fixed rod drives the fan-shaped plate to move downward. When it moves downward to the fixed position, the fan-shaped plate enters the test mold, and then the unfolding mechanism drives the multiple fan-shaped plates on the fixed rod to unfold to a horizontal state. After the fan-shaped unfolding, a disc-shaped structure is formed and contacts the inner cavity wall of the test mold, so that the arc-shaped outer peripheral edge of the fan-shaped plate is tightly pressed against the inner cavity wall of the test mold, thereby making the disc-shaped structure formed by the fan-shaped plate seal the inside of the test mold to a certain extent. In this way, the fan-shaped plate has a blocking effect on the dry-mixed mortar in the upper layer of the test mold, thereby preventing the dry-mixed mortar in the upper layer of the test mold from splashing out during the vibration process. In addition, when the amplitude generated by the test mold is large, the test mold is out of contact with the compaction table. At this time, the test mold moves upward relative to the compaction table, thereby making the fan-shaped plate The mixed mortar generates pressure, which, on the one hand, can have a compacting effect on the dry-mixed mortar in the test mold, and on the other hand, can interfere with the movement of the test mold relative to the compaction table to avoid excessive movement of the test mold relative to the compaction table, and then when the test mold moves downward, it will have a large impact on the compaction table, causing damage to the compaction table. In addition, since the fan-shaped plate is unfolded inside the test mold, during the unfolding process, the arc-shaped periphery of the fan-shaped plate has an extrusion force on the inner cavity wall of the test mold, so that when the fan-shaped plate is unfolded to a horizontal state, the test mold can be automatically positioned by the thrust of the fan-shaped plate, that is, the test mold will slide on the compaction table to a state coaxial with the fixed rod. Therefore, when the test mold is manually placed on the compaction table, there is no need to repeatedly correct the position of the test mold, so that it can be ensured that the fan-shaped plate corresponds to the test mold after unfolding, thereby achieving a sealing effect on the inside of the test mold.

[0011] Furthermore, the vibration mechanism includes a plurality of vibration springs vertically mounted on the upper end of the frame, and both ends of the vibration springs in the elastic force direction are respectively fixed to the upper end of the frame and the bottom surface of the vibration table, and a vibration motor is installed at the bottom of the vibration table.

[0012] Through the above technical solution, the vibration motor is started and generates vibration force on the compaction table, and then the vibration spring generates corresponding expansion and contraction changes, so that the vibration force of the compaction table can be transmitted to the dry mixed mortar in the test mold.

[0013] Furthermore, the vibration motor is electrically connected to an external controller, and the external controller is provided with a timing system and a variable resistance system, wherein the timing system is used to adjust the vibration time of the vibration motor, and the variable resistance system is used to adjust the vibration frequency of the vibration motor.

[0014] Through the above technical solution, the vibration time and vibration frequency of the vibration motor can be adjusted, thereby ensuring that each batch of dry-mixed mortar test blocks can have the same compaction time and vibration frequency, thereby avoiding mortar segregation caused by over-vibration, and also avoiding excessive strength differences between test blocks produced in different batches due to inconsistent compaction.

[0015] Furthermore, the lifting mechanism includes an ear block fixedly connected to the side wall of the compaction table, and a lifting cylinder is vertically installed on the ear block, and the cylinder rod end of the lifting cylinder is drivingly connected to the crossbeam.

[0016] Through the above technical solution, the cylinder rod of the lifting cylinder is extended or shortened, thereby driving the crossbeam to move up and down accordingly.

[0017] Furthermore, both side edges of the sector plate in the circumferential direction are provided with an extension portion and a notch portion respectively, and the extension portion and the notch portion of two adjacent sector plates are used in coordination.

[0018] Through the above technical solution, when two adjacent sector plates are flipped up and down, the extension portion can enter the notch portion, so that when the sector plates are flipped, the edges of the two will not interfere with each other.

[0019] Furthermore, a water storage tank is formed between the upper surface of the extension portion of the fan-shaped plate and the upper surface of an adjacent fan-shaped plate. When the fan-shaped plate is flipped to a horizontal state, the notch portion and the longitudinal opposite surface of the extension portion have a gap for liquid circulation, and the gap is connected to the water storage tank.

[0020] Through the above technical solution, during the compaction process, a small amount of water in the dry-mixed mortar can flow into the water storage tank through the gap, and then after the compaction is completed, the staff collects the water in the water storage tank.

[0021] Furthermore, a stop ring is fixedly sleeved on the periphery of the fixing rod, and the stop ring is used to limit the upward flipping of the sector plate.

[0022] Through the above technical solution, the stop ring limits the sector plate when it flips upward to a horizontal state, so that the sector plate will not continue to flip upward.

[0023] Furthermore, the unfolding mechanism includes a floating beam arranged above the compaction table, the floating beam corresponds to the cross beam, and a through hole is opened on the surface of the floating beam for the free passage of the fixed rod, a plurality of connecting rings are fixedly connected to the bottom of the floating beam, the connecting ring is located above the fan-shaped plate, and a plurality of hinge rods are hinged on the bottom surface of the connecting ring, and the lower ends of the hinge rods are correspondingly hinged to the top surface of the fan-shaped plate, the floating beam and the cross beam are connected by a floating unit, the floating unit is used to drive the floating beam to move downward when the cross beam moves upward, and a stop unit is provided at the end of the floating beam, and the stop unit is used to limit the downward movement of the floating beam when the cross beam moves downward to a fixed position.

[0024] Through the above technical solution, when the crossbeam moves downward, it simultaneously drives the fixed rod to move downward, so that the fan-shaped plate moves downward and enters the test mold. When the crossbeam moves downward to a fixed position, the stop unit is triggered and restricts the downward movement of the floating beam, so that the floating beam will not continue to move downward. The crossbeam moves downward relative to the floating beam, so that the hinge rod pulls the fan-shaped plate upward, thereby expanding the fan-shaped plate. The structure is simple, and the fan-shaped plate can be automatically expanded by moving the crossbeam up and down, and the operation is convenient.

[0025] Furthermore, the stopping unit includes stopping bolts vertically penetrated through both ends of the floating beam in the length direction, the stopping bolts are detachably connected to the floating beam through a plurality of nuts, and the stopping bolts are used in conjunction with the top edge of the vibration table.

[0026] Through the above technical solution, when the floating beam moves downward with the cross beam, the end of the stop bolt will approach the top of the compaction table until the end face of the stop bolt abuts against the top of the compaction table, so that the floating beam will not continue to move downward with the cross beam, thereby achieving the purpose of stopping the floating beam.

[0027] Furthermore, the floating unit includes a floating rod vertically penetrated through the two ends of the beam, the floating rod slides vertically and freely on the beam, and the upper end of the floating rod is threadedly sleeved with a limiting nut, and the lower end of the floating rod is detachably connected to the floating beam through a locking nut, and a reset spring is wrapped around the periphery of the floating rod, and the two ends of the reset spring in the direction of elastic force elastically press against the bottom surface of the beam and the upper end surface of the locking nut respectively.

[0028] Through the above technical solution, when the cross beam moves downward relative to the floating beam, the cross beam will squeeze the reset spring, causing the reset spring to be compressed and accumulate elastic potential energy, and then after the cross beam moves upward and resets, the elastic potential energy accumulated in the reset spring is released, and then the floating beam is driven to move downward relative to the cross beam, so that the multiple hinge rods drive the fan-shaped plates to flip downward, so as to carry out the next vibration compaction operation on the test mold.

[0029] The beneficial effects of the present invention are as follows:

[0030] (1) In the present invention, the lifting mechanism drives the crossbeam to move downward, so that the fixed rod drives the fan-shaped plate to move downward. When the fan-shaped plate moves downward to a fixed position, the fan-shaped plate enters the test mold. Then, the unfolding mechanism drives the multiple fan-shaped plates on the fixed rod to unfold to a horizontal state. After the fan-shaped plates are unfolded, a disc-shaped structure is formed and contacts the inner cavity wall of the test mold, so that the arc-shaped outer periphery of the fan-shaped plate is tightly pressed against the inner cavity wall of the test mold, and then the disc-shaped structure formed by the fan-shaped plate seals the inside of the test mold to a certain extent. In this way, the fan-shaped plate has a blocking effect on the dry-mixed mortar in the upper layer of the test mold, thereby preventing the dry-mixed mortar in the upper layer of the test mold from splashing out during the vibration process.

[0031] (2) In the present invention, when the cross beam moves downward, it simultaneously drives the fixed rod to move downward, so that the fan-shaped plate moves downward and enters the test mold. When the cross beam moves downward to a fixed position, the stop unit is triggered and has a limiting effect on the floating beam to move downward, so that the floating beam will not continue to move downward. The cross beam moves downward relative to the floating beam, so that the hinge rod pulls the fan-shaped plate upward, thereby expanding the fan-shaped plate. The structure is simple, and the fan-shaped plate can be automatically expanded by the up and down movement of the cross beam, which is convenient to operate.

[0032] (3) In the present invention, when the cross beam moves downward relative to the floating beam, the cross beam will squeeze the reset spring, causing the reset spring to be compressed and accumulate elastic potential energy. After the cross beam moves upward and resets, the elastic potential energy accumulated in the reset spring is released, thereby driving the floating beam to move downward relative to the cross beam, so that the multiple hinge rods drive the fan-shaped plates to flip downward, so as to carry out the next vibration compaction operation on the test mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of a vibrating table for making dry-mixed mortar in the present invention;

[0034] Figure 2 yes Figure 1 A schematic diagram of the structure from another perspective;

[0035] Figure 3 yes Figure 1 A schematic diagram of the enlarged local structure at point A in the middle;

[0036] Figure 4 yes Figure 1 The structural diagram after the frame, vibration table and vibration motor are omitted;

[0037] Figure 5 yes Figure 4 A schematic diagram of the structure from another perspective;

[0038] Figure 6 It is a schematic diagram of the structure after the fixing rod, the fan-shaped plate, the hinge rod and the stop ring are assembled in the present invention;

[0039] Figure 7 yes Figure 6 A magnified schematic diagram of the local structure at B in the middle;

[0040] Figure 8 yes Figure 6 A schematic diagram of the structure from another perspective.

[0041] Figure numerals: 1. frame; 2. vibration spring; 3. vibration table; 4. test mold; 5. floating beam; 6. cross beam; 7. fan-shaped plate; 8. lifting cylinder; 9. vibration motor; 10. connecting ring; 11. fixing rod; 12. stop ring; 13. stop bolt; 14. floating rod; 15. limit nut; 16. reset spring; 17. locking nut; 18. hinge rod; 19. water tank; 20. extension part; 21. notch part; 22. connecting arm. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] like Figure 1-Figure 8 As shown, the present embodiment provides a vibration compaction table for making dry-mixed mortar, including a frame 1 of the vibration compaction table, four corners of the upper end of the frame 1 are vertically installed with vibration springs 2, the lower ends of the vibration springs 2 in the elastic direction are welded to the frame 1, a vibration compaction table 3 is installed above the frame 1, the upper ends of the vibration springs 2 in the elastic direction are welded to the bottom of the vibration compaction table 3, and the middle position of the bottom of the vibration compaction table 3 is connected to a vibration motor 9 by bolts, an electric control cabinet (not shown in the figure) is installed on the frame 1, a controller (not shown in the figure) is installed in the electric control cabinet, and a timing system is provided inside the controller. The timing system and the variable resistance system are used to adjust the vibration time of the vibration motor 9, and the variable resistance system is used to adjust the vibration frequency of the vibration motor 9. It should be noted that the timing system and the variable resistance system are prior art. In addition, the parameters of the timing system and the variable resistance system are adjusted by technicians in this field based on the prior art, so that when the same batch of dry-mixed mortar test blocks are vibrated in the trial mold, they can have the same vibration time and vibration frequency, ensuring that the strength difference between each batch of test blocks is small. A plurality of trial molds 4 are placed in the inner cavity of the vibration table 3, and the trial molds 4 are filled with dry-mixed mortar material;

[0044] Combination Figures 1 to 4As shown, three ear blocks are welded on the outer walls of the two opposite sides of the vibration table 3, and a lifting cylinder 8 is installed at the bottom of each ear block by bolts. The cylinder rod of the lifting cylinder 8 penetrates the ear block and can slide freely. In addition, the cylinder rod ends of the two corresponding lifting cylinders 8 on both sides of the vibration table 3 are commonly penetrated by a crossbeam 6, and the crossbeam 6 spans the vibration table 3. Figure 3 As shown, two nuts are threadedly sleeved on the cylinder rod of the lifting cylinder 8, and the two nuts respectively abut against the upper and lower outer walls of the cross beam 6, thereby drivingly connecting the cross beam 6 to the cylinder rod end of the lifting cylinder 8, so that when the cylinder rod of the lifting cylinder 8 is extended or shortened, the cross beam 6 can be driven to move upward or downward accordingly. Three fixing rods 11 are equidistantly arranged on the cross beam 6 along its length direction, and a test mold 4 is correspondingly placed at the lower end of each fixing rod 11. The fixing rod 11 can also be detachably connected to the cross beam 6 through nuts, so that when the cross beam 6 moves, the fixing rod 11 is synchronously driven to move. In this embodiment , the cross beam 6 can be made of square steel, which is convenient to obtain and has a low cost. In addition, a floating beam 5 is provided above the vibration table 3. The floating beam 5 is located between the cross beam 6 and the vibration table 3, and each floating beam 5 is in a one-to-one correspondence with the cross beam 6. The length direction of the floating beam 5 is also consistent with the length direction of the cross beam 6. The two ends of the floating beam 5 are located on the outside of the vibration table 3. In this embodiment, the floating beam 5 can be made of channel steel, which is convenient to obtain and has a low cost. In addition, a through hole is opened on the surface of the floating beam 5 for the fixing rod 11 to pass freely, so that the floating beam 5 can slide freely on the periphery of the fixing rod 11;

[0045] Combination Figure 3 , Figure 6 , Figure 7 and Figure 8As shown, four notched grooves are provided at the lower end of the fixing rod 11, and a connecting arm 22 is connected to the inner wall of each notched groove by pivot rotation. The connecting arm 22 can rotate freely in the notched groove. In addition, a fan-shaped plate 7 is fixedly connected to the connecting arm 22, and the fan-shaped plate 7 can also be an integrally formed structure with the connecting arm 22, which is convenient for the manufacture and assembly of the fan-shaped plate 7. There are four fan-shaped plates 7, and they are arranged in an axial array along the fixing rod 11. In addition, a hinge rod 18 is hingedly installed on the upper side of each fan-shaped plate 7, and a connecting ring 10 is installed at the bottom of the floating beam 5 by bolts. The connecting ring 10 is located above the fan plate 7. The upper ends of the four hinge rods 18 on the same fixing rod 11 are hinged to the connecting ring 10 together, so that when the floating beam 5 moves up and down relative to the cross beam 6, The hinge rod 18 can drive the connecting ring 10 to move up and down, thereby causing the hinge rod 18 to drive the fan-shaped plate 7 to flip up and down around the axial direction of the pivot. When the four fan-shaped plates 7 on the fixing rod 11 flip upward to a horizontal state, the four fan-shaped plates 7 will be spliced ​​together into a disc-shaped structure, and the outer diameter of the disc-shaped structure is consistent with the inner diameter of the test mold 4. In addition, in order to limit the fan-shaped plate 7 from continuing to flip upward after flipping to a horizontal state, in this embodiment, a stop ring 12 is fixedly sleeved on the periphery of the lower end of the fixing rod 11. The stop ring 12 is used to limit the flipping of the fan-shaped plate 7, that is, when the fan-shaped plate 7 flips upward to a horizontal state, the lower end surface of the stop ring 12 abuts against the upper surface of the fan-shaped plate 7, thereby preventing the fan-shaped plate 7 from continuing to flip upward, thereby allowing the fan-shaped plate 7 to maintain a disc-shaped structure.

[0046] Combination Figures 3 to 8As shown, a stop bolt 13 is vertically penetrated at both ends of the length direction of the floating beam 5, and the screw head of the stop bolt 13 faces the top edge of the compaction table 3, and two nuts are threadedly sleeved on the threaded part of the stop bolt 13, and the two nuts are respectively abutted against the upper and lower outer walls of the floating beam 5, so that the stop bolt 13 can be detachably connected to the floating beam 5. The purpose of this arrangement is that when the floating beam 5 moves downward to a fixed position with the cross beam 6, the end of the stop bolt 13 abuts against the top surface of the compaction table 3, so that the floating beam 5 will no longer continue to move downward, and at this time the fan-shaped plate 7 flips upward to a horizontal state. Due to the setting of the stop bolt 13, after the fan-shaped plate 7 is horizontally flipped, it will be in contact with the dry mixed mortar material in the test mold 4. When the cross beam 6 continues to move downward, the fan-shaped plate 7 exerts a greater pressure on the dry-mixed mortar, which in turn causes the stop ring 12 to be subjected to an excessive force from the hinge rod 18. In addition, it also avoids the floating beam 5 from contacting the vibration compaction table 3 with a large area, so that the floating beam 5 generates a larger vibration during the start-up of the vibration motor 9. Floating rods 14 are vertically penetrated at both ends of the cross beam 6. The floating rod 14 slides vertically and freely on the cross beam 6, and the upper end of the floating rod 14 is threadedly sleeved with a limiting nut 15, and the lower end of the floating rod 14 is detachably connected to the floating beam 5 through a locking nut 17. A reset spring 16 is sleeved around the periphery of the floating rod 14, and the two ends of the reset spring 16 in the elastic force direction elastically press against the bottom surface of the cross beam 6 and the upper end surface of the locking nut 17 respectively;

[0047] Combination Figure 6 , Figure 7 and Figure 8 As shown, the two side edges of the fan-shaped plate 7 in the circumferential direction are respectively provided with an extension portion 20 and a notch portion 21, and the extension portion 20 and the notch portion 21 of two adjacent fan-shaped plates 7 are used in combination, that is, when the two adjacent fan-shaped plates 7 are flipped downward, the extension portion 20 can enter the notch portion 21, thereby avoiding interference between the edges of the two fan-shaped plates 7 when the two fan-shaped plates 7 are flipped downward (the flipping angle is not greater than 30°), and a water storage tank 19 is formed between the upper surface of the extension portion 20 of the fan-shaped plate 7 and the upper surface of an adjacent fan-shaped plate 7. When the fan-shaped plate 7 is flipped to a horizontal state, the longitudinal opposite surfaces of the notch portion 21 and the extension portion 20 have a gap for liquid circulation, and the gap is connected to the water storage tank 19.

[0048] The working principle of this embodiment is as follows:

[0049] The dry-mixed mortar is filled into the test mold 4, and the test mold 4 filled with the dry-mixed mortar is placed in the inner cavity of the vibration table 3, and each test mold 4 is roughly corresponding to the corresponding fixed rod 11 (the placement position does not need to be too precise, and basically the technicians in this field can complete the operation by relying on naked eye observation), and then the lifting cylinder 8 is started, the cylinder rod of the lifting cylinder 8 is shortened, and the cross beam 6 is driven to move downward. During the downward movement of the cross beam 6, the floating beam 5 and the fixed rod 11 also move downward synchronously. At this time, the floating beam 5 is subjected to the elastic resistance force of the reset spring 16 on the locking nut 17, and the connecting ring 10 is driven by the floating beam 5 to move downward, so that the connecting ring 10 drives the hinge rod 18 to swing. When the hinge rod 18 swings, it will cause the fan plate 7 to swing downward around the axial direction of the pivot. At this time, the maximum diameter of the positive projection area of ​​the four fan plates 7 on the fixed rod 11 is much smaller than the inner diameter of the test mold 4;

[0050] As the cross beam 6 continues to move downward, the fan-shaped plate 7 will also enter the test mold 4 (the upper layer of the dry-mixed mortar in the test mold 4 is located below the top surface of the test mold 4, or the dry-mixed mortar is not completely filled with the test mold 4). When the end of the stop bolt 13 contacts the top of the vibration table 3, the floating beam 5 cannot continue to move downward, and the floating beam 5 and the vibration table 3 are in a relatively static state. As the cross beam 6 continues to move downward, the fixing rod 11 also continues to move downward, so that the fan-shaped plate 7 moves downward relative to the connecting ring 10. At this time, the hinge rod 18 will pull the fan-shaped plate 7 upward, so that the fan-shaped plate 7 is flipped upwards. During the flipping process, the arc-shaped periphery of the sector plate 7 exerts a squeezing force on the inner cavity wall of the test mold 4. Since the four sector plates 7 are arranged in an array on the fixing rod 11, a centering effect is produced on the test mold 4, so that the test mold 4 can slide on the inner cavity bottom wall of the vibration table 3 through its bottom to achieve the purpose of coaxial positioning of the test mold 4 and the fixing rod 11. In this way, it is not necessary to accurately find the placement position of the test mold 4 during the placement of the test mold 4, so that the disc-shaped structure spliced ​​after the sector plates 7 are flipped horizontally into place can be stuck in the test mold 4, making the operation relatively simple.

[0051] After the fan-shaped plate 7 is flipped to the horizontal state, there is a certain longitudinal distance between the bottom surface of the disc-shaped structure spliced ​​by the fan-shaped plate 7 and the upper layer of the dry-mixed mortar in the test mold 4. At this time, the vibration motor 9 is started. After the vibration force generated by the vibration motor 9 is transmitted to the vibration compaction table 3, the test mold 4 will be subjected to the vibration force, thereby making the dry-mixed mortar in the test mold 4 vibrate under the action of the vibration force, while the dry-mixed mortar in the upper layer of the inner cavity of the test mold 4 is blocked by the disc-shaped structure spliced ​​by the fan-shaped plate 7, and no splashing phenomenon will occur. In addition, when the vibration amplitude is large, the test mold 4 may move upward relative to the vibration compaction table 3. At this time, the test mold 4 is in the The dry-mixed mortar on the upper layer of the inner cavity also moves upward with the test mold 4, and is then squeezed by the bottom of the disc-shaped structure, so that the upper layer of the dry-mixed mortar can be pressed into the dry-mixed mortar material in the inner cavity of the test mold 4. This can compact the dry-mixed mortar to a certain extent, improve the compaction effect, and also avoid the phenomenon that the test mold 4 vibrates too much and jumps up and down on the compaction table 3. During the compaction process, since the dry-mixed mortar material contains a small amount of liquid (usually water) in the raw materials when it is prepared, when it is squeezed by the bottom of the disc-shaped structure, the liquid in the dry-mixed mortar material will penetrate into the water storage tank 19 through the gap between the notch portion 21 and the extension portion 20;

[0052] After the compaction is completed, the staff first cleans the liquid in the water tank 19, such as using a dry rag to absorb the liquid (the amount of liquid is small), and then starts the lifting cylinder 8. The cylinder rod of the lifting cylinder 8 extends and drives the crossbeam 6 to move upward, which can then drive the floating beam 5 to move upward, so that the fixed rod 11 and the fan-shaped plate 7 move upward and disengage from the test mold 4. After disengaging, the hinge rod 18 will drive the fan-shaped plate 7 to flip downward. After the fan-shaped plate 7 is away from the test mold 4, the staff removes the test mold 4 on the compaction table 3, thereby completing a compaction operation.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

Claims

1. A vibrating table for making dry-mix mortar, comprising a frame (1) of the vibrating table, a vibrating table surface (3) being arranged above the frame (1), the frame (1) and the vibrating table surface (3) being connected via a vibrating mechanism, and a plurality of trial molds (4) being placed in the vibrating table surface (3), characterized in that: Also includes: A plurality of cross beams (6) arranged above the vibration table (3), wherein the cross beams (6) are driven to move vertically by a lifting mechanism installed on the vibration table (3); a plurality of fixing rods (11) vertically and fixedly arranged on the crossbeam (6), wherein the lower ends of the fixing rods (11) correspond to the test mold (4); a plurality of fan-shaped plates (7) hinged to the lower end of the fixing rod (11); when the plurality of fan-shaped plates (7) on the fixing rod (11) are rotated upward to an unfolded state, a disc-shaped structure is formed, and the outer diameter of the disc-shaped structure matches the inner diameter of the test mold (4); An unfolding mechanism is provided on the vibration table (3), and is used to drive the plurality of fan-shaped plates (7) on the fixing rod (11) to unfold when the crossbeam (6) moves downward to a fixed position.

2. The vibrating table for making dry-mix mortar according to claim 1, characterized in that: The vibration mechanism comprises a plurality of vibration springs (2) vertically mounted on the upper end of the frame (1), the two ends of the vibration springs (2) in the elastic force direction are respectively fixed to the upper end of the frame (1) and the bottom surface of the vibration table (3), and a vibration motor (9) is mounted on the bottom of the vibration table (3).

3. The vibrating table for making dry-mix mortar according to claim 2, characterized in that: The vibration motor (9) is electrically connected to an external controller, and the external controller is provided with a timing system and a variable resistance system, the timing system is used to adjust the vibration time of the vibration motor (9), and the variable resistance system is used to adjust the vibration frequency of the vibration motor (9).

4. The vibrating table for making dry-mix mortar according to claim 1, characterized in that: The lifting mechanism comprises an ear block fixedly connected to the side wall of the vibration table (3), a lifting cylinder (8) being vertically mounted on the ear block, and the cylinder rod end of the lifting cylinder (8) is drivingly connected to the crossbeam (6).

5. The vibrating table for making dry-mix mortar according to claim 1, characterized in that: The two side edges of the sector plate (7) in the circumferential direction are respectively provided with an extension portion (20) and a notch portion (21), and the extension portion (20) and the notch portion (21) of two adjacent sector plates (7) are used in coordination.

6. The vibrating table for making dry-mix mortar according to claim 5, characterized in that: A water storage tank (19) is formed between the upper surface of the extension portion (20) of the fan-shaped plate (7) and the upper surface of an adjacent fan-shaped plate (7); when the fan-shaped plate (7) is turned over to a horizontal state, a gap for liquid to flow is provided between the notch portion (21) and the longitudinally opposite surface of the extension portion (20), and the gap is connected to the water storage tank (19).

7. The vibrating table for making dry-mix mortar according to claim 6, characterized in that: A stop ring (12) is fixedly sleeved on the periphery of the fixing rod (11), and the stop ring (12) is used to limit the upward turning of the sector plate (7).

8. The vibrating table for making dry-mix mortar according to claim 1, characterized in that: The unfolding mechanism comprises a floating beam (5) arranged above the vibration table (3), the floating beam (5) corresponding to the cross beam (6), and a through hole for the fixed rod (11) to freely pass through is opened on the surface of the floating beam (5), a plurality of connecting rings (10) are fixedly connected to the bottom of the floating beam (5), the connecting ring (10) is located above the fan-shaped plate (7), and a plurality of hinge rods (18) are hinged on the bottom surface of the connecting ring (10), and the lower ends of the hinge rods (18) are correspondingly hinged to the top surface of the fan-shaped plate (7), the floating beam (5) and the cross beam (6) are connected by a floating unit, and the floating unit is used to drive the floating beam (5) to move downward when the cross beam (6) moves upward, and a stop unit is provided at the end of the floating beam (5), and the stop unit is used to limit the downward movement of the floating beam (5) when the cross beam (6) moves downward to a fixed position.

9. The vibrating table for making dry-mix mortar according to claim 8, characterized in that: The stop unit comprises stop bolts (13) vertically penetrated through both ends of the floating beam (5) in the length direction, the stop bolts (13) are detachably connected to the floating beam (5) via a plurality of nuts, and the stop bolts (13) are used in conjunction with the top edge of the vibration table (3).

10. The vibrating table for making dry-mix mortar according to claim 8, characterized in that: The floating unit comprises a floating rod (14) vertically penetrated through the two ends of the cross beam (6), the floating rod (14) slides vertically and freely on the cross beam (6), and the upper end of the floating rod (14) is threadedly sleeved with a limit nut (15), and the lower end of the floating rod (14) is detachably connected to the floating beam (5) through a locking nut (17), and a return spring (16) is sleeved around the periphery of the floating rod (14), and the two ends of the return spring (16) in the elastic force direction elastically press against the bottom surface of the cross beam (6) and the upper end surface of the locking nut (17) respectively.

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