Automatic demolding device for cement mortar test block

Abstract

The application discloses a cement mortar test block automatic demolding device which is used for taking out cement mortar test blocks from cement mortar test molds; the device comprises a seat body, a pushing device and an ejection device, the pushing device is fixedly connected to the upper surface of one end of the seat body, the ejection device is fixedly connected to the inside of the other end of the seat body, the upper surface of the end of the seat body close to the ejection device is provided with a through hole for the ejection device to extend out, forming a demolding area, the through hole corresponds to the size and position of the cement mortar test block one by one, a placing groove is arranged between the pushing device and the demolding area, the depth of the placing groove is smaller than the thickness of the bottom mold closing plate of the cement mortar test mold, the demolding area is provided with a sliding groove for the cement mortar test mold to slide, and a limiting block is arranged at the end of the sliding groove away from the pushing device. The cement mortar test mold is placed in the placing groove, the mold of the cement mortar test mold is pushed to the demolding area through the pushing device, the cement mortar test block can be ejected from the mold through the ejection device, and the demolding is completed; the process is automatically carried out and manual operation is not needed.

Description

Technical Field

[0001] This invention relates to the field of building testing technology, and in particular to an automatic demolding device for cement mortar test blocks. Background Technology

[0002] Cement mortar is a mixture of cement and materials conforming to the GB / T17671-2021 standard "Test Method for Strength of Cement Mortar (ISO Method)" used to test the strength of cement. A cement mortar mold is a test mold used to determine the strength of cement mortar. A cement mortar mold consists of two metal molds coated with a release agent and is used to make cement mortar test blocks. When making cement mortar test blocks using a cement mortar mold, the test blocks need to be allowed to set for one day before being demolded and placed in water for curing. After the cement mortar test blocks have reached the specified curing time, their strength is tested.

[0003] Patent CN205325955U discloses a cement mortar specimen mold ejection device, including a base, a pressure fixture, and a worktable located on the top surface of the base. The base has a rectangular parallelepiped structure, and the worktable is fixedly connected to the top surface of the base by support blocks at the four corners of the bottom. Although the above patent has a simple structure and is easy to operate, when demolding the specimen, it is necessary to manually operate the handle to allow the pressure fixture and partitions to use the lever principle to separate the four partitions from the clamping plate to complete the demolding. In order to avoid damaging the specimen due to excessive force during manual operation, the operator needs to control the grip strength of the handle, which is not convenient for rapid demolding.

[0004] Therefore, there is a particular need for an automatic demolding device for cement mortar test blocks to solve the problems existing in the prior art. Summary of the Invention

[0005] In view of the shortcomings of the prior art, one of the objectives of this invention is to overcome the disadvantages of manual operation that can damage the specimen due to excessive force, the need for operators to control the grip of the handle during operation, and the inconvenience of quick demolding, and to provide an automatic demolding device for cement mortar specimens.

[0006] Furthermore, a second objective of this invention is to add a push-back device and a conveying device to the above-mentioned automatic demolding device for cement mortar test blocks, thereby further automating the return and conveying after demolding and reducing manual operation.

[0007] To achieve the first objective of the invention, the technical solution of the present invention is: an automatic demolding device for cement mortar test blocks, used to remove cement mortar test blocks from cement mortar molds; comprising a base, a pushing device, and an ejecting device, wherein the pushing device is fixedly connected to the upper surface of one end of the base, and the ejecting device is fixedly connected to the interior of the other end of the base; the upper surface of the base near the ejecting device is provided with a through hole for the ejecting device to extend, forming a demolding area; the through hole corresponds one-to-one with the size and position of the cement mortar test block; a placement groove is provided between the pushing device and the demolding area; the depth of the placement groove is less than or equal to the thickness of the bottom sealing template of the cement mortar mold; the demolding area is provided with a sliding groove for the cement mortar mold to slide; a limiting block is provided at the end of the sliding groove away from the pushing device.

[0008] Preferably, the pushing device includes a pushing cylinder and a pushing plate. The cylinder body of the pushing cylinder is fixedly connected to the base body, and the pushing plate is fixedly connected to the end face of the pushing cylinder rod. The pushing cylinder is arranged horizontally, and the pushing cylinder rod faces the slide groove.

[0009] Preferably, the ejection device includes an ejection module, an ejection cylinder, and an electromagnet. The cylinder body of the ejection cylinder is fixedly connected to the base. The ejection module is fixedly connected to the end face of the rod of the ejection cylinder. The ejection cylinder is arranged vertically with the rod of the ejection cylinder facing the through hole. The electromagnet is fixedly connected to the bottom surface of the slide groove.

[0010] Preferably, a wear-resistant layer is provided on the top of the electromagnet.

[0011] Preferably, a rubber pad is provided on the side of the placement groove near the ejection device to buffer the impact of the bottom sealing template of the cement mortar test mold.

[0012] Preferably, the placement groove is provided with a positioning block for abutting against the side of the bottom sealing template of the cement mortar test mold.

[0013] Preferably, guide blocks are provided on both sides of the groove along the pushing direction of the pushing device.

[0014] The placement groove is used to place the cement mortar test mold, the pushing device is used to push the upper part of the cement mortar test mold to the demolding area, the limiting block is used to limit the position of the upper part of the cement mortar test mold in the demolding area, so that the cement mortar test block is located above the ejection module, and the ejection device is used to eject the cement mortar test block in the cement mortar test mold from bottom to top to complete the demolding.

[0015] To achieve the second objective of the invention, more preferably, at least one push-back cylinder is horizontally provided on the side of the demolding area away from the pushing device, with the rod of the push-back cylinder facing the pushing device.

[0016] Preferably, a slag trough is provided between the push-back cylinder and the demolding area, and a slag drawer is provided in the slag trough.

[0017] Preferably, the placement slot includes a slot plate, one side of which is rotatably connected to the base, and at least one tilting cylinder is provided below the slot plate. The cylinder body of the tilting cylinder is fixedly connected to the base, and the rod of the tilting cylinder is rotatably connected to the slot plate.

[0018] Preferably, the upper surface of the groove plate is provided with multiple sets of rolling devices.

[0019] Preferably, conveyor belts are provided in both the front and rear directions (perpendicular to the direction of travel of the pushing device 2) of the placement slot. Compared with the prior art, the advantages of this invention are: 1. This invention provides an automatic demolding device for cement mortar test blocks, used to remove cement mortar test blocks from cement mortar molds. It includes a base, a pushing device, and an ejecting device. The pushing device is fixedly connected to the upper surface of one end of the base, and the ejecting device is fixedly connected to the interior of the other end of the base. The upper surface of the base near the ejecting device has a through hole for the ejecting device to extend, forming a demolding area. The through hole corresponds one-to-one with the size and position of the cement mortar test block. A placement groove is provided between the pushing device and the demolding area. The depth of the placement groove is less than or equal to the thickness of the bottom sealing plate of the cement mortar mold. The demolding area has a sliding groove for the cement mortar mold to slide, and a limiting block is provided at the end of the sliding groove away from the pushing device. The cement mortar mold is placed in the placement groove, and the pushing device pushes the mold to the demolding area. The ejecting device then ejects the cement mortar test block from the mold, completing the demolding process automatically without manual operation.

[0020] 2. Furthermore, the present invention is equipped with a push-back device, further improves the placement groove, and adds a conveying device, which can realize the return and conveying of the molded parts automatically, reducing manual operation.

[0021] The detailed structure of the present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall appearance of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is one of the structural schematic diagrams of the groove placement part of the present invention; Figure 5This is a second schematic diagram of the structure of the groove in this invention; Figure 6 This is a schematic diagram of the roller structure on the groove plate of the present invention; Figure 7 This is a schematic diagram of the conveyor belt installation position according to the present invention; Figure 8 This is a schematic diagram of the existing cement mortar test mold structure.

[0023] Component numbers and names: 1. Base; 2. Pushing device; 21. Pushing cylinder; 22. Pushing plate; 3. Ejection device; 31. Ejection cylinder; 32. Ejection module; 4. Placement slot; 41. Slot plate; 42. Tilting cylinder; 43. Roller; 5. Slide groove; 6. Limit block; 7. Electromagnet; 8. Rubber pad; 10. Guide block; 11. Through hole; 12. Demolding area; 13. Mold; 14. Sealing plate; 15. Cement mortar test block; 16. Push-back cylinder; 17. Push-back plate; 18. Slag drawer; 19. Conveyor belt. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. The following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0025] Please see Figure 1 This invention proposes an automatic demolding device for cement mortar test blocks, used to remove cement mortar test blocks 15 from cement mortar molds. It includes a base 1, a pushing device 2, and an ejecting device 3. The pushing device 2 is fixedly connected to the upper surface of one end of the base 1, and the ejecting device 3 is fixedly connected to the interior of the other end of the base 1. The upper surface of the base 1 near the ejecting device 3 has a through hole 11 for the ejecting device 3 to extend, forming a demolding area 12. The through hole 11 corresponds one-to-one with the size and position of the cement mortar test block 15. A placement groove 4 is provided between the pushing device 2 and the demolding area 12. The depth of the placement groove 4 is less than the thickness of the sealing template 14 at the bottom of the cement mortar mold. The demolding area 12 has a sliding groove 5 for the cement mortar mold to slide, and a limiting block 6 is provided at the end of the sliding groove 5 away from the pushing device 2. (See also...) Figure 8The cement mortar test mold includes a mold 13 and a sealing template 14. The cement mortar test mold is placed in the placement groove 4. The mold 13 of the cement mortar test mold is pushed to the demolding area 12 by the pushing device 2, while the sealing template 14 of the cement mortar test mold remains in the placement groove 4. The cement mortar test block 15 can be ejected from the mold 13 by the ejection device 3 to complete the demolding. This process is automated and does not require manual operation.

[0026] Please see Figure 3 Specifically, the pushing device 2 includes a pushing cylinder 21 and a pushing plate 22. The cylinder body of the pushing cylinder 21 is fixedly connected to the base 1, and the pushing plate 22 is fixedly connected to the end face of the rod of the pushing cylinder 21. The pushing cylinder 21 is arranged horizontally, with the rod of the pushing cylinder 21 facing the slide groove 5. An electric air pump can be used to power the pushing cylinder 21, and a first electromagnetic reversing valve is provided between the electric air pump and the pushing cylinder 21. To improve the pushing force, multiple pushing cylinders 21 can be set to provide thrust together.

[0027] Please see Figure 3 Specifically, the ejection device 3 includes an ejection module 32, an ejection cylinder 31, and an electromagnet 7. The cylinder body of the ejection cylinder 31 is fixedly connected to the base 1. The ejection module 32 is fixedly connected to the end face of the rod of the ejection cylinder 31. The ejection cylinder 31 is arranged vertically, and the rod of the ejection cylinder 31 faces the through hole 11. Similarly, an electric air pump can be used to power the push cylinder 21. A second electromagnetic reversing valve is set between the electric air pump and the ejection cylinder 31. The electromagnet 7 is fixedly connected to the bottom surface of the slide groove 5. A wear-resistant plate is provided above the electromagnet 7. The thickness of the electromagnet 7 plus the depth of the placement groove 4 and the thickness of the wear-resistant plate are equal to the thickness of the sealing plate 14 at the bottom of the cement mortar mold, so that the mold 13 above the cement mortar mold can be seamlessly connected when it slides from the placement groove 4 to the demolding area 12.

[0028] The specific working process is as follows: First, place the cement mortar test mold in the placement groove 4, start the pushing cylinder 21, push the mold 13 of the cement mortar test mold to the demolding area 12. After the mold 13 stops, the electromagnet 7 is energized and holds the frame of the mold 13 (the existing mold 13 is made of iron material). Start the ejection cylinder 31, and the ejection module 32 passes through the through hole 11 and pushes the cement mortar test block 15 in the mold 13 upward out of the mold 13, thus completing the demolding.

[0029] Please see Figure 2 Specifically, a rubber pad 8 is provided on the side of the placement groove 4 near the ejection device 3 to buffer the impact of the sealing template 14 at the bottom of the cement mortar mold, and to prevent damage to the base body 1 from repeated impacts of the sealing template 14 at the bottom of the cement mortar mold under long-term use.

[0030] Specifically, the placement groove 4 is provided with a positioning block, which is used to abut against the side of the sealing template 14 at the bottom of the cement mortar test mold parallel to the sliding direction of the mold 13, to prevent the mold 13 from interfering with the groove edge of the sliding groove 5, and also to facilitate the alignment of the cement mortar test block 15 with the through hole 11.

[0031] Specifically, to prevent the mold 13 from shaking during the sliding process, which would cause the edge of the cement mortar test block 15 to be misaligned with the edge of the through hole 11, guide blocks 10 are provided on both sides of the slide groove 5 along the pushing direction of the pushing device 2. The guide blocks 10 are wedge-shaped.

[0032] Please see Figure 3 Specifically, at least one push-back cylinder 16 is horizontally provided on the side of the demolding area 12 away from the pushing device 2. The rod of the push-back cylinder 16 faces the pushing device 2. The end face of the push-back cylinder 16 rod is provided with a push-back plate 17 for increasing the contact area with the mold. After demolding is completed, the push-back cylinder 16 is activated to push the mold 13 back into the placement groove 4, so that the mold 13 and the sealing template 14 are recombined into a cement mortar test mold.

[0033] Specifically, a slag trough is provided between the push-back cylinder 16 and the demolding area 12, and a slag drawer 18 is provided in the slag trough; the demolding area 16 is connected to the slag drawer 18, and the operator can use a broom or air gun to sweep the slag remaining on the demolding area 12 into the slag drawer 18 to keep the demolding area 12 clean.

[0034] Please see Figure 4 and Figure 5 Specifically, the placement slot 4 includes a slot plate 41, one side of which is rotatably connected to the base 1. At least one tilting cylinder 42 is provided under the slot plate 41. The cylinder body of the tilting cylinder 42 is fixedly connected to the base 1, and the rod of the tilting cylinder 42 is rotatably connected to the slot plate 41. The tilting direction of the slot plate 41 is perpendicular to the traveling direction of the pushing device 2.

[0035] Please see Figure 7 Furthermore, the placement trough 4 is provided with channels for the flow of cement mortar test molds in the front and rear directions (perpendicular to the direction of travel of the pushing device 2). Conveyor belts 19 can be set at both ends of the channels. The cement mortar test molds and test blocks can be transported from the previous process to the placement trough 4 via the conveyor belt 19 on the side away from the inclined direction of the trough plate. After demolding is completed, the tilting cylinder 42 is controlled to retract, the trough plate 41 is tilted, and the cement mortar test mold on the trough plate 41 slides along the inclined surface formed by the trough plate 41 to the conveyor belt on the other side of the placement trough. Then the conveyor belt transfers the cement mortar test mold to the next process.

[0036] Please see Figure 6Furthermore, to facilitate the easy sliding of the cement mortar mold on the groove plate 41, multiple sets of rollers 43 and / or drums can be provided on the upper surface of the groove plate 41, with the axis of the rollers 43 and / or drums perpendicular to the conveying direction of the cement mortar mold.

[0037] The cylinders mentioned in this article can all be replaced with hydraulic cylinders to change their energy source and make them adaptable to more operating environments and locations.

[0038] The above description is a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and concept of the present invention, should be covered within the scope of protection of the claims of the present invention.

Claims

1. An automatic demolding device for cement mortar test blocks, used to demold cement mortar test blocks from cement mortar molds, characterized in that: The device includes a base, a pushing device, and an ejecting device. The pushing device is fixedly connected to the upper surface of one end of the base, and the ejecting device is fixedly connected to the interior of the other end of the base. The upper surface of the base near the ejecting device has a through hole for the ejecting device to extend, forming a demolding area. The through hole corresponds one-to-one with the size of the cement mortar test block. A placement groove is provided between the pushing device and the demolding area. The depth of the placement groove is less than or equal to the thickness of the bottom sealing template of the cement mortar test mold. The demolding area has a sliding groove for the cement mortar test mold to slide. A limiting block is provided at the end of the sliding groove away from the pushing device. At least one push-back cylinder is horizontally provided on the side of the demolding area away from the pushing device, and the rod of the push-back cylinder faces the pushing device; A slag trough is provided between the push-back cylinder and the demolding area, and a slag drawer is provided inside the slag trough.

2. The automatic demolding device for cement mortar test blocks according to claim 1, characterized in that: The pushing device includes a pushing cylinder and a pushing plate. The cylinder body of the pushing cylinder is fixedly connected to the base body, and the pushing plate is fixedly connected to the end face of the pushing cylinder rod. The pushing cylinder is arranged horizontally, and the pushing cylinder rod faces the slide groove.

3. The automatic demolding device for cement mortar test blocks according to claim 1, characterized in that: The ejection device includes an ejection module, an ejection cylinder, and an electromagnet. The cylinder body of the ejection cylinder is fixedly connected to the base body. The ejection module is fixedly connected to the end face of the rod of the ejection cylinder. The ejection cylinder is arranged vertically with the rod of the ejection cylinder facing the through hole. The electromagnet is fixedly connected to the bottom surface of the slide groove.

4. The automatic demolding device for cement mortar test blocks according to claim 3, characterized in that: The electromagnet has a wear-resistant layer on top.

5. An automatic demolding device for cement mortar test blocks according to any one of claims 1-3, characterized in that: A rubber pad is provided on the side of the placement slot near the ejection device.

6. An automatic demolding device for cement mortar test blocks according to any one of claims 1-3, characterized in that: The placement slot is equipped with a positioning block.

7. An automatic demolding device for cement mortar test blocks according to any one of claims 1-3, characterized in that: Guide blocks are provided on both sides of the groove along the pushing direction of the pushing device.

8. An automatic demolding device for cement mortar test blocks according to any one of claims 1-3, characterized in that: The placement groove includes a groove plate, one side of which is rotatably connected to the base. At least one tilting cylinder is provided under the groove plate. The cylinder body of the tilting cylinder is fixedly connected to the base, and the rod of the tilting cylinder is rotatably connected to the groove plate. Multiple sets of rolling devices are provided on the upper surface of the groove plate.

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