Cement mortar test piece demolding device

Abstract

The utility model discloses a cement mortar test piece demolding device which comprises a workbench, a test piece mold is arranged at the top of the workbench and comprises two first test piece templates arranged in parallel and two second test piece templates arranged in parallel, and the second test piece templates are perpendicular to the first test piece templates. The two first test piece templates and the two second test piece templates form a frame body, an ejection assembly is mounted at the top of the workbench and located in the test piece mold, and a linkage mechanism is mounted at the bottom of the workbench. The cement mortar demoulding device has the beneficial effects that through the arrangement of the linkage mechanism, the first test piece template and the second test piece template are simultaneously pushed towards the edge of the working table when the test piece is jacked up by the material jacking assembly, so that the first test piece template and the second test piece template are quickly separated from the cement mortar test piece, the demoulding effect is improved, and the production efficiency is improved. The integrity of the cement mortar test piece is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of demoulding devices, in particular to a demoulding device for cement mortar specimens. Background Technique

[0002] To detect the strength of cement, it is necessary to make cement mortar specimens. When making cement mortar specimens, the specimen mold is fixed on a vibrating table for vibrating and leveling. After the cement mortar specimens are cured for 24 hours, demoulding operations are carried out.

[0003] In the prior art, most cement mortar specimens are demoulded by vibration. One method is to place the mold containing the test block into a vibrating device, start the vibrating device, and wait for the test block to demould by itself; the other method is to manually hold a hammer and strike the specimen mold to separate the cement mortar specimen from the mold. Both of these methods need to pay attention to controlling the vibration intensity. When the vibration intensity is too high, cracks will occur in the test body, resulting in a serious decline in the flexural strength, and even the test body may break, causing the mold making to fail. Moreover, the demoulding operation is time-consuming and laborious. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a demoulding device for cement mortar specimens. Through the provided linkage mechanism, when the top material component jacks up the specimen, the first specimen template and the second specimen template are simultaneously pushed towards the edge of the workbench, so that the first specimen template and the second specimen template are quickly separated from the cement mortar specimen, improving the demoulding effect and ensuring the integrity of the cement mortar specimen.

[0005] The utility model provides the following technical solutions. A demoulding device for cement mortar specimens includes: a workbench, on the top of which a specimen mold is arranged. The specimen mold includes two first specimen templates arranged in parallel and two second specimen templates arranged in parallel. The second specimen template is perpendicular to the first specimen template. The two first specimen templates and the two second specimen templates form a frame. Inside the specimen mold on the top of the workbench, a top material component is installed. At the bottom of the workbench, a linkage mechanism is installed. The linkage mechanism is used to drive the two first specimen templates and the two second specimen templates to be separated or assembled synchronously, and at the same time, drive the top material component to rise or fall. The bottom of the workbench is connected with a support member.

[0006] Preferably, the top material component includes a top plate. A receiving groove is opened on the top of the workbench. The top plate is placed in the receiving groove. Four first guide rods distributed in a rectangle are fixedly connected to the bottom of the top plate. The bottom ends of the first guide rods slide through the workbench.

[0007] Preferably, the linkage mechanism includes a threaded rod fixedly connected to the center of the bottom of the top plate. A threaded sleeve penetrating the workbench is rotatably connected in the receiving groove. The threaded sleeve is threadedly sleeved on the outer side of the threaded rod. A connecting seat is fixedly sleeved at the bottom of the threaded rod. Connecting blocks are fixedly connected to the middle positions of the outer walls of the bottom ends of the first specimen template and the second specimen template. Long strip through grooves are formed in the workbench corresponding to each connecting block. The bottom end of the connecting block passes through the long strip through groove. A linkage rod is movably hinged between each connecting block and the connecting seat. The linkage mechanism further includes a driving member.

[0008] Preferably, the driving member includes a fixed first bevel gear, a second bevel gear and a driving rod. The first bevel gear is fixedly sleeved on the outer side of the threaded sleeve. The driving rod is installed at the bottom of the workbench through a bearing seat. The second bevel gear is fixedly connected to one end of the driving rod. The second bevel gear meshes with the first bevel gear. The other end of the driving rod extends to the outside of the workbench and is fixedly connected with a handwheel.

[0009] Preferably, fixing plates are fixedly connected to the four sides of the top of the workbench. A pair of second guide rods are symmetrically and fixedly connected to the outer walls of the first specimen template and the second specimen template. One end of the second guide rod slidably penetrates the fixing plate.

[0010] Preferably, socket sleeves are fixedly connected to both sides of the outer walls of the first specimen template and the second specimen template. An L-shaped connecting plate is arranged at the connection between the first specimen template and the second specimen template. Plug rods are fixedly connected to both ends of the bottom of the L-shaped connecting plate. The two plug rods are respectively inserted into the socket sleeves of the adjacent first specimen template and the second specimen template.

[0011] Preferably, embedding blocks are arranged at both ends of the first specimen template, and embedding grooves adapted to the embedding blocks on the first specimen template are arranged at both ends of the second specimen template.

[0012] Preferably, the support member includes support plates fixedly connected to the four weeks of the bottom of the workbench, and the same bottom plate is fixedly connected to the bottoms of the support plates.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. Through the provided linkage mechanism, by rotating the threaded sleeve, the threaded rod is driven to axially move upward in the threaded sleeve, so that the threaded rod jacks up the top plate. At the same time, the connecting seat moves upward synchronously with the threaded rod, changing the support angle of the linkage rod, thereby pushing the first specimen template and the second specimen template towards the edge of the workbench, enabling the first specimen template and the second specimen template to be quickly separated from the cement mortar specimen, improving the demoulding effect, being used for the rapid demoulding of the set cement mortar specimen, and ensuring the integrity of the cement mortar specimen;

[0015] 2. By providing inserts at both ends of the first specimen template and grooves adapted to the inserts on the first specimen template at both ends of the second specimen template, the first specimen template and the second specimen template fit tightly when they are closed, improving the sealing performance at the connection. Then, by inserting the two insertion rods of the L-shaped connecting plate into the corresponding insertion sleeves of the first specimen template and the second specimen template respectively, the connection between the first specimen template and the second specimen template is made firm when they are closed, avoiding the leakage of cement mortar. Description of the Drawings

[0016] Figure 1 It is a schematic three-dimensional structure diagram of the whole cement mortar specimen demolding device;

[0017] Figure 2 It is a schematic structure diagram of the linkage mechanism;

[0018] Figure 3 It is a schematic structure diagram of the first specimen template and the second specimen template;

[0019] Figure 4 It is a schematic structure diagram of the ejector assembly and the workbench;

[0020] Figure 5 For Figure 2 the enlarged schematic diagram of the structure of area A in;

[0021] Figure 6 For Figure 1 the enlarged schematic diagram of the structure of area B in;

[0022] In the figure: 1. Workbench; 2. First specimen template; 3. Second specimen template; 4. Support plate; 5. Bottom plate; 6. Connection block; 7. Threaded sleeve; 8. Threaded rod; 9. Connection seat; 10. Linkage rod; 11. Long strip through slot; 12. First bevel gear; 13. Second bevel gear; 14. Driving rod; 15. Bearing seat; 16. Handwheel; 17. Accommodating groove; 18. Top plate; 19. First guide rod; 20. Fixed plate; 21. Second guide rod; 22. Insertion sleeve; 23. Insertion rod; 24. L-shaped connecting plate. Detailed Implementation Manner

[0023] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present utility model clearer, the technical solutions of the embodiments of the present utility model will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment

[0025] As Figures 1 to 6As shown in the figure, a demoulding device for cement mortar specimens includes: a workbench 1. A specimen mold is arranged on the top of the workbench 1. The specimen mold includes two first specimen templates 2 arranged in parallel and two second specimen templates 3 arranged in parallel. The second specimen template 3 is perpendicular to the first specimen template 2. The two first specimen templates 2 and the two second specimen templates 3 form a frame. A top material component is installed inside the specimen mold at the top of the workbench 1. A linkage mechanism is installed at the bottom of the workbench 1. The linkage mechanism is used to drive the two first specimen templates 2 and the two second specimen templates 3 to separate or assemble synchronously. At the same time, it drives the top material component to rise or fall. A support member is connected to the bottom of the workbench 1. The specimen mold is formed by combining and assembling the two first specimen templates 2 and the two second specimen templates 3, which is used to carry the cement mortar specimen until it is set. During demoulding, by operating the linkage mechanism, the two first specimen templates 2 and the two second specimen templates 3 are driven to separate, separating the first specimen template 2 and the second specimen template 3 from the cement mortar specimen, and raising the top material component, which is used to lift the cement mortar specimen, so that the cement mortar specimen is separated from the workbench 1, which helps to quickly demould the cement mortar specimen and ensure the integrity of the cement mortar specimen.

[0026] The top material component includes a top plate 18. A receiving groove 17 is opened at the top of the workbench 1. The top plate 18 is placed in the receiving groove 17. Four first guide rods 19 distributed in a rectangle are fixedly connected to the bottom of the top plate 18. The bottom ends of the first guide rods 19 slide through the workbench 1. By moving the top plate 18 upward out of the receiving groove 17, it is used to lift the cement mortar specimen for easy demoulding. The first guide rods 19 play a role in limiting and guiding, improving the stability of the movement of the top plate 18.

[0027] The linkage mechanism includes a threaded rod 8 fixedly connected to the center of the bottom of the top plate 18. A threaded sleeve 7 that penetrates the workbench 1 is rotatably connected in the receiving groove 17. The threaded sleeve 7 is threadedly sleeved on the outside of the threaded rod 8. A connecting seat 9 is fixedly sleeved at the bottom of the threaded rod 8. Connecting blocks 6 are fixedly connected to the middle positions at the bottom ends of the outer walls of the first specimen template 2 and the second specimen template 3. Long strip through slots 11 are opened on the workbench 1 corresponding to each connecting block 6. The bottom ends of the connecting blocks 6 pass through the long strip through slots 11. A linkage rod 10 is movably hinged between each connecting block 6 and the connecting seat 9. During demoulding, by rotating the threaded sleeve 7, the threaded rod 8 is driven to axially move upward in the threaded sleeve 7, so that the threaded rod 8 lifts the top plate 18. At the same time, the connecting seat 9 moves upward synchronously with the threaded rod 8, changing the supporting angle of the linkage rod 10, thereby pushing the first specimen template 2 and the second specimen template 3 towards the edge of the workbench 1, so that the first specimen template 2 and the second specimen template 3 are quickly separated from the cement mortar specimen, improving the demoulding effect.

[0028] The linkage mechanism further includes a driving member, which includes a fixed first bevel gear 12, a second bevel gear 13 and a driving rod 14. The first bevel gear 12 is fixedly sleeved outside the threaded sleeve 7. The driving rod 14 is installed at the bottom of the workbench 1 through a bearing seat 15. The second bevel gear 13 is fixedly connected to one end of the driving rod 14. The second bevel gear 13 meshes with the first bevel gear 12. The other end of the driving rod 14 extends outside the workbench 1 and is fixedly connected with a handwheel 16. By rotating the handwheel 16, the driving rod 14 is driven to rotate. The driving rod 14 drives the second bevel gear 13 to rotate. The second bevel gear 13 drives the meshing first bevel gear 12 to rotate. The first bevel gear 12 drives the threaded sleeve 7 to rotate, improving the operation convenience.

[0029] Fixing plates 20 are fixedly connected to the four sides of the top of the workbench 1. A pair of second guide rods 21 are symmetrically and fixedly connected to the outer walls of the first specimen template 2 and the second specimen template 3. One end of the second guide rod 21 slidably penetrates through the fixing plate 20. The second guide rod 21 and the fixing plate 20 provided play a role in limiting and guiding the first specimen template 2 and the second specimen template 3, improving the stability of the movement of the first specimen template 2 and the second specimen template 3.

[0030] Insert sleeves 22 are fixedly connected to both sides of the outer walls of the first specimen template 2 and the second specimen template 3. An L-shaped connecting plate 24 is arranged at the connection between the first specimen template 2 and the second specimen template 3. Two inserting rods 23 are fixedly connected to both ends of the bottom of the L-shaped connecting plate 24. The two inserting rods 23 are respectively inserted into the insert sleeves 22 of the adjacent first specimen template 2 and second specimen template 3. When the specimen mold is closed, the two inserting rods 23 of the L-shaped connecting plate 24 are respectively inserted into the corresponding insert sleeves 22 of the first specimen template 2 and the second specimen template 3, which is used to firmly connect the first specimen template 2 and the second specimen template 3 when they are closed.

[0031] Blocks are arranged at both ends of the first specimen template 2, and grooves adapted to the blocks on the first specimen template 2 are arranged at both ends of the second specimen template 3. The blocks and grooves provided make the first specimen template 2 and the second specimen template 3 fit tightly when they are closed, improving the sealing performance of the connection.

[0032] The support member includes support plates 4 fixedly connected to the four sides of the bottom of the workbench 1. The same bottom plate 5 is fixedly connected to the bottom of the support plates 4. The workbench 1 is stably supported by the support plates 4 and the bottom plate 5.

[0033] Embodiment: During use, a specimen mold is formed by clamping together two first specimen templates 2 and a second specimen template 3. The two insertion rods 23 of the L-shaped connecting plate 24 are respectively inserted into the corresponding insertion sleeves 22 of the first specimen template 2 and the second specimen template 3 to firmly connect the first specimen template 2 and the second specimen template 3. Then, cement mortar is injected into the specimen mold. After the cement mortar specimen solidifies, the hand wheel 16 is rotated to drive the drive rod 14 to rotate. The drive rod 14 drives the second bevel gear 13 to rotate. The second bevel gear 13 drives the engaged first bevel gear 12 to rotate. The first bevel gear 12 drives the threaded sleeve 7 to rotate, causing the threaded rod 8 to axially move upward within the threaded sleeve 7. The threaded rod 8 jacks up the top plate 18. At the same time, the connecting seat 9 moves upward synchronously with the threaded rod 8, changing the support angle of the linkage rod 10, and pushing the first specimen template 2 and the second specimen template 3 towards the edge of the workbench 1, so that the first specimen template 2 and the second specimen template 3 are quickly separated from the cement mortar specimen, improving the demolding effect and ensuring the integrity of the cement mortar specimen.

[0034] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they learn the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0035] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. A cement mortar specimen demoulding device, characterized in that: include: A workbench, a specimen mold is arranged on the top of the workbench, the specimen mold includes two parallel first specimen templates and two parallel second specimen templates, the second specimen templates are vertically arranged to the first specimen templates, the two first specimen templates and the two second specimen templates form a frame, a top material assembly is installed inside the specimen mold on the top of the workbench, a linkage mechanism is installed at the bottom of the workbench, the linkage mechanism is used to drive the two first specimen templates and the two second specimen templates to separate or assemble synchronously, and at the same time, drive the top material assembly to rise or fall, and a support is connected to the bottom of the workbench.

2. A cement mortar specimen demoulding device according to claim 1, characterized in that: The material ejection assembly comprises a top plate, a receiving groove is provided on the top of the workbench, the top plate is placed in the receiving groove, four rectangularly distributed first guide rods are fixedly connected to the bottom of the top plate, and the bottom ends of the first guide rods slide through the workbench.

3. A cement mortar specimen demoulding device according to claim 2, characterized in that: The linkage mechanism includes a threaded rod fixedly connected to the center of the bottom of the top plate, a threaded sleeve that penetrates the workbench is rotatably connected in the accommodating groove, the threaded sleeve is threadedly sleeved on the outside of the threaded rod, and a connecting seat is fixedly sleeved at the bottom of the threaded rod. The middle position of the bottom end of the outer wall of the first specimen template and the second specimen template is fixedly connected to a connecting block, and a long through groove is opened at the workbench corresponding to each connecting block, and the bottom end of the connecting block passes through the long through groove, and a linkage rod is movably hinged between each connecting block and the connecting seat, and the linkage mechanism also includes a driving member.

4. A cement mortar specimen demoulding device according to claim 3, characterized in that: The driving member includes a fixed first bevel gear, a second bevel gear and a driving rod. The first bevel gear is fixedly sleeved on the outside of the threaded sleeve. The driving rod is installed on the bottom of the workbench through a bearing seat. The second bevel gear is fixedly connected to one end of the driving rod. The second bevel gear is meshed with the first bevel gear. The other end of the driving rod extends to the outside of the workbench and is fixedly connected to a handwheel.

5. A cement mortar specimen demoulding device according to claim 1, characterized in that: The four sides of the top of the workbench are all fixedly connected with fixed plates, and the outer walls of the first specimen template and the second specimen template are symmetrically fixedly connected with a pair of second guide rods, and one end of the second guide rod slides through the fixed plate.

6. A cement mortar specimen demoulding device according to claim 1, characterized in that: Both sides of the outer walls of the first specimen template and the second specimen template are fixedly connected with sockets, and an L-shaped connecting plate is provided at the connection between the first specimen template and the second specimen template. Both ends of the bottom of the L-shaped connecting plate are fixedly connected with plug rods, and the two plug rods are respectively inserted into the sockets of the adjacent first specimen template and the second specimen template.

7. A cement mortar specimen demoulding device according to claim 1, characterized in that: Both ends of the first specimen template are provided with embedded blocks, and both ends of the second specimen template are provided with embedded grooves adapted to the embedded blocks on the first specimen template.

8. A cement mortar specimen demoulding device according to claim 1, characterized in that: The supporting member comprises a supporting plate which is fixedly connected to the periphery of the bottom of the workbench, and the bottom of the supporting plate is fixedly connected to the same bottom plate.

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