Pressure testing machine for cement block detection

Abstract

The invention relates to a cement block detection pressure testing machine which comprises a rack, a lower pressing table and an upper pressing plate are arranged on the rack, the upper pressing plate is installed on the rack in a sliding mode, a hydraulic part used for driving the upper pressing plate to ascend and descend is arranged on the rack, and a cleaning assembly and an annular fence are arranged on the rack. A collecting box is arranged on the portion, located on the peripheral wall of the lower pressing table, of the rack. The cleaning assembly comprises a negative pressure mechanism and a scraping part. During testing, a to-be-tested cement block is placed on the lower pressing table, at the moment, the hydraulic part drives the upper pressing plate to move towards the lower pressing table, a pressing test is conducted on the cement block till the cement block is broken and the upper pressing plate returns, the scraping part scrapes chippings on the lower pressing table to the collecting box to be collected, and meanwhile the negative pressure mechanism provides negative pressure for the collecting box; and small dust on the lower pressing table is sucked away through the opening of the collecting box, cleaning of the testing machine is completed, and the testing machine has the advantages that the manual cleaning frequency is reduced, and cleaning operation is convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cement block detection equipment, in particular to a cement block detection pressure testing machine. BACKGROUND

[0002] Before cement is used, the performance of the cement needs to be tested, and a pressure testing machine is usually used to extrude cement test blocks of a specified size to measure various data when the cement test blocks are crushed.

[0003] The existing pressure testing machine usually includes a rack, a lower pressing table, an upper pressing plate, a control system, and a hydraulic component for pushing the upper pressing plate to slide. When the cement test block is subjected to pressure testing, the cement test block is placed on the lower pressing table, and then the control system selects the corresponding test method and loading rate. The upper pressing plate is driven by the hydraulic component to pressurize the cement test block until the cement test block is crushed, and the data is obtained to complete the pressure testing.

[0004] In the above related technology, after the test, there are a lot of cement debris left on the equipment. A lead screw driven sliding installed scraper or brush plate is usually provided on the equipment to scrape and clean the debris, but the cleaned debris falls to the ground outside the equipment, and manual cleaning is still needed, which is inconvenient to clean. SUMMARY

[0005] In order to solve the problem that the debris after the test of the equipment is cleaned and falls to the outside of the equipment, manual cleaning is still needed, and the cleaning operation is inconvenient, the present application provides a cement block detection pressure testing machine.

[0006] The cement block detection pressure testing machine provided by the present application adopts the following technical solution: A cement block detection pressure testing machine, comprising a rack, a lower pressing table and an upper pressing plate are provided on the rack, the upper pressing plate is slidingly installed on the rack in a vertical direction and is distributed opposite to the lower pressing table, a hydraulic component for driving the upper pressing plate to lift is provided on the rack, a cleaning assembly and an annular enclosure are provided on the rack, the annular enclosure covers the circumferential direction of the lower pressing table, a collection box is provided on the rack and located at the outer peripheral wall of the lower pressing table, the cleaning assembly comprises a negative pressure mechanism for providing a negative pressure environment in the collection box and a scraping component for scraping and cleaning the debris on the lower pressing table.

[0007] By adopting the technical scheme, during testing, the cement block to be tested is placed on the lower pressing table, at this time, the hydraulic component drives the upper pressing plate to move towards the lower pressing table, and the cement block is subjected to compression test until the cement block is broken, when the upper pressing plate returns, the scraping component scrapes the debris on the lower pressing table to the collecting box for collection, and at the same time, the negative pressure mechanism provides negative pressure to the collecting box, and the air and small dust on the collecting box are sucked into the processing box through the opening of the collecting box, the small dust on the lower pressing table is adsorbed and collected, the filtering component in the processing box filters and intercepts the dust sucked in, and air pollution caused by dust discharge is reduced.

[0008] Optionally, the ring-shaped enclosure comprises a first enclosure and a second enclosure, a lifting cylinder is arranged on the rack, the first enclosure is slidably installed on the rack and connected to one end of the piston rod of the lifting cylinder, the first enclosure and the second enclosure are respectively arranged at opposite sides of the lower pressing table, the first enclosure and the second enclosure are annularly arranged and cover the lower pressing table inside, and the second enclosure is connected to the upper pressing plate.

[0009] By adopting the technical scheme, the lifting cylinder drives the first enclosure to slide upwards along the rack, at this time, the first enclosure is separated from the second enclosure, the worker places the cement test block on the lower pressing table, before the test starts, the lifting cylinder drives the first enclosure to slide back to the original position, and the first enclosure is combined with the second enclosure to cover the cement test block on the lower pressing table, during work, the upper pressing plate presses the cement test block downwards, after the test is completed, the first enclosure is moved to be opened, the cement test block is conveniently cleaned and replaced, and the ring-shaped enclosure effectively blocks the debris generated by the broken cement test block during the test.

[0010] Optionally, the negative pressure mechanism comprises a processing box and a fan, the processing box is arranged on one side of the rack, the processing box is connected to the collecting box through an air pipe, the fan is arranged on the side of the processing box away from the air pipe, and a filtering component for filtering dust is arranged in the processing box.

[0011] By adopting the technical scheme, the fan forms negative pressure in the processing box, the air and small dust in the collecting box are sucked into the processing box through the air pipe, the small dust on the lower pressing table is adsorbed and collected, the filtering component in the processing box filters and intercepts the dust sucked in, and air pollution caused by dust discharge is reduced.

[0012] Optionally, inclined guide plates are arranged on opposite sides of the lower pressing table towards the first enclosure, the opening of the collecting box is located at the lower side of the guide plate, the first enclosure is provided with a material passing groove on the side towards the guide plate, and the position of the material passing groove corresponds to the position of the opening of the collecting box.

[0013] By adopting the technical scheme, the debris on the lower pressing table is scraped to the guide plate by the scraping member, the debris is guided to slide along the surface of the guide plate by the inclined guide plate, the debris enters the collecting box through the material passing groove on the first surrounding fence, the accumulation and blockage of the debris at the guide plate or the material passing groove are reduced, and the debris remaining in the equipment is reduced.

[0014] Optionally, the scraping member comprises a pushing mechanism and a lower scraping plate, the pushing mechanism is arranged on the first surrounding fence, the lower scraping plate is arranged at the material passing groove of the first surrounding fence and is connected with the pushing mechanism, one side surface of the lower scraping plate is attached to the surface of the lower pressing table, and the pushing mechanism is used for sliding the lower scraping plate along the surface of the lower pressing table.

[0015] By adopting the technical scheme, the lower scraping plate slides along the surface of the lower pressing table under the driving of the pushing mechanism, and the debris is completely scraped and pushed to the collecting box on one side during the sliding process, so that the probability of the debris remaining on the surface of the lower pressing table is reduced.

[0016] Optionally, the pushing mechanism is provided with an upper scraping plate which is the same as the lower scraping plate on the pushing mechanism, one side of the upper scraping plate is attached to the surface of the upper pressing table, and the upper scraping plate is oppositely distributed with the lower scraping plate.

[0017] By adopting the technical scheme, the upper scraping plate slides synchronously under the movement of the lower scraping plate driven by the pushing mechanism, the cement debris remaining on the surface of the upper pressing table after the test is scraped and cleaned at the same time, the synchronous cleaning of the upper and lower pressing surfaces of the equipment is realized, the debris remaining is reduced, and the reliability of the test result is improved.

[0018] Optionally, the lower scraping plate is provided with a bristle plate which is distributed along the length direction of the lower scraping plate, the bristle plate is provided with bristles, one end of the bristles is flush with one side of the lower scraping plate, and the upper scraping plate is provided with the same bristle plate as the lower scraping plate.

[0019] By adopting the technical scheme, the bristles on the bristle plate clean the fine debris remaining on the surface of the lower pressing table when the lower scraping plate moves, the scraping and cleaning effect of the scraping plate is improved, the cleaning is more thorough, and the same bristle plate is arranged on the upper scraping plate, so that the cleaning cleanliness of the upper and lower pressing tables is further improved.

[0020] Optionally, the pushing mechanism comprises a pushing cylinder and a mounting frame, the pushing cylinder is arranged on the first surrounding fence, the mounting frame is arranged at one end of a piston rod of the pushing cylinder and is located at the material passing groove of the first surrounding fence, the lower scraping plate and the upper scraping plate are arranged on the mounting frame, and the mounting frame is provided with an adjusting member, the adjusting member is used for driving the upper scraping plate to move towards or away from the upper pressing plate.

[0021] By adopting the technical scheme, the air cylinder drives the mounting frame to move, and then drives the lower and upper scraping plates on the mounting frame to slide synchronously, so that the upper and lower pressing plates are cleaned synchronously, the synchronous action of the two is facilitated, the adjusting member drives the upper scraping plate to move along the direction towards or away from the upper pressing plate according to the actual position of the upper pressing plate or the test requirement of the cement test block with different thicknesses, adjusts the fit degree of the upper scraping plate and the upper pressing plate table, ensures that the upper scraping plate is closely fitted with the upper pressing plate table for cleaning in different test scenarios, and the adaptability and cleaning effect of the device are improved.

[0022] Optionally, the adjusting member comprises a screw rod and a moving block, a guide groove is formed in the mounting frame, a guide block is arranged on the side of the upper scraping plate facing downward, the guide block is slidably connected with the mounting frame through the guide groove, the screw rod is rotatably arranged at the guide groove of the mounting frame, the screw rod is provided with two opposite threads, the moving block is slidably arranged at the guide groove of the mounting frame, the moving block is provided with two and is threadedly connected with the screw rod at the two threads, respectively, a rotating rod is rotatably arranged on the moving block, one end of the rotating rod away from the moving block is rotatably connected with the guide block, and the mounting frame is provided with a driving member for driving the screw rod to rotate.

[0023] By adopting the technical scheme, the driving member drives the screw rod to rotate, drives the two moving blocks to slide along the guide groove towards or away from each other, drives the rotating rod to rotate, and then drives or pulls the guide block to slide along the guide groove of the mounting frame, so that the upper scraping plate moves up and down, and the adjustment stability is ensured.

[0024] Optionally, the driving member comprises a worm gear and a worm, the worm gear is coaxially connected with the screw rod, the worm is rotatably arranged on the mounting frame, one end of the worm is located outside the mounting frame, and the worm is meshed with one side of the worm gear.

[0025] By adopting the technical scheme, the one end of the worm is rotated to drive the worm gear to rotate, the transmission drives the screw rod to rotate synchronously, the one end of the worm is located outside the mounting frame, the staff can conveniently adjust and operate outside the equipment, and the adjustment convenience is improved.

[0026] In summary, the present application has at least one of the following beneficial technical effects: 1. The scraping member scrapes the debris on the lower pressing table to the collecting box for collection, and the negative pressure mechanism provides negative pressure to the collecting box to suck away small dust on the lower pressing table, so that the test machine is cleaned, the frequency of manual cleaning is reduced, and the cleaning operation is convenient; 2. The annular fence effectively blocks the debris splashed during the test of the cement test block, and can be opened and closed during work, so that the cement test block is conveniently cleaned and replaced; 3. Pushing mechanism drives the synchronous sliding of the lower and upper scraping plates, realizes the synchronous cleaning of the upper and lower pressure surfaces of the equipment, reduces the residue of debris, and improves the reliability of the test results. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a perspective structural schematic diagram of the present application.

[0028] Figure 2 is a perspective structural schematic diagram of the first enclosure of the present application when opened.

[0029] Figure 3 is a cross-sectional structural schematic diagram of the interior of the annular enclosure of the present application.

[0030] Figure 4 is a cross-sectional structural schematic diagram of the interior of the mounting frame of the present application.

[0031] Those skilled in the art will understand that the elements in the drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the dimensions and positions of some of the elements in the drawings can be exaggerated relative to other elements to help improve understanding of the embodiments of the present application.

[0032] Reference signs: 1, rack; 11, lower pressing table; 111, material guide plate; 12, upper pressing plate; 13, hydraulic part; 14, collection box; 15, guide rod; 16, lifting cylinder; 2, annular enclosure; 21, first enclosure; 211, material passing groove; 22, second enclosure; 3, negative pressure mechanism; 31, processing box; 32, fan; 33, air pipe; 4, scraping part; 41, pushing mechanism; 411, pushing cylinder; 412, mounting frame; 4121, guide groove; 42, lower scraping plate; 43, upper scraping plate; 431, guide block; 44, brush plate; 5, adjusting part; 51, screw rod; 52, moving block; 521, rotating rod; 6, driving part; 61, worm gear; 62, worm. DETAILED DESCRIPTION

[0033] The present application will be further described in detail below in conjunction with the drawings.

[0034] The embodiments of the present application disclose a cement block detection pressure testing machine, referring to Figure 1 , Figure 2 and Figure 3The device comprises a rack 1, a lower pressing table 11, an upper pressing plate 12, a hydraulic component 13, a cleaning assembly and an annular enclosure 2, wherein the lower pressing table 11 and the upper pressing plate 12 are oppositely arranged on the rack 1, the upper pressing plate 12 is slidably arranged on the rack 1 in a vertical direction and is located directly above the lower pressing table 11, the hydraulic component 13 is used to drive the upper pressing plate 12 to move towards or away from the lower pressing table 11, the annular enclosure 2 covers the periphery of the lower pressing table 11, a collecting box 14 is arranged on the rack 1 and is located at the outer peripheral wall of the lower pressing table 11, and the cleaning assembly comprises a negative pressure mechanism 3 used to provide a negative pressure environment in the collecting box 14 and a scraping component 4 used to scrape and clean the debris on the lower pressing table 11. During testing, the cement block to be tested is placed on the lower pressing table 11, at this time, the hydraulic component 13 drives the upper pressing plate 12 to move towards the lower pressing table 11, and the cement block is subjected to a pressing test until the cement block is broken, when the upper pressing plate 12 returns, the scraping component 4 scrapes the debris on the lower pressing table 11 to the collecting box 14 for collection, and the negative pressure mechanism 3 sucks away the small dust on the lower pressing table 11. After the cement block test, the cement debris on the device can be effectively cleaned, the frequency of manual cleaning is reduced, and the cleaning operation is convenient.

[0035] With reference to Figure 1 and Figure 2 The annular enclosure 2 comprises a first enclosure 21 and a second enclosure 22, a vertical guide rod 15 is arranged on the rack 1, the first enclosure 21 is slidably arranged on the rack 1 and is slidably connected with the guide rod 15, a lifting cylinder 16 is vertically arranged on the rack 1, the first enclosure 21 is connected with one end of the top piston rod of the lifting cylinder 16, and the lifting cylinder 16 drives the first enclosure 21 to slide up and down on the rack 1.

[0036] With reference to Figure 2 and Figure 3 The second enclosure 22 is connected with the upper pressing plate 12, the vertical baffle of the first enclosure 21 is located at the opposite sides of the lower pressing table 11, the vertical baffle of the second enclosure 22 is located at the two sides perpendicular to the straight line connecting the two sides of the first enclosure 21, and the first enclosure 21 and the second enclosure 22 are annularly surrounded and the lower pressing table 11 is covered inside. When the lifting cylinder 16 drives the first enclosure 21 to slide up on the rack 1, the first enclosure 21 and the second enclosure 22 are separated, which facilitates workers to place the cement test block on the lower pressing table 11; before the test starts, the lifting cylinder 16 drives the first enclosure 21 to slide back to the original position, and the first enclosure 21 and the second enclosure 22 are combined to cover the cement test block on the lower pressing table 11. During work, the upper pressing plate 12 presses the cement test block, and the annular enclosure 2 can effectively block the debris generated by the broken cement test block during the test.

[0037] With reference to Figure 2 and Figure 3The lower pressing table 11 is provided with inclined guide plates 111 on opposite sides facing the first enclosure 21, and the top opening of the collecting box 14 is located at the lower side of the guide plates 111. The first enclosure 21 is provided with a material passing groove 211 on the side facing the guide plates 111, and the position of the material passing groove 211 corresponds to the opening position of the collecting box 14. The material scraping piece 4 scrapes the debris on the lower pressing table 11 to the guide plates 111. The inclined guide plates 111 guide the debris to slide down along the plate surface, so that the debris enters the collecting box 14 through the material passing groove 211 on the first enclosure 21, reduces the accumulation and blockage of debris at the guide plates 111 or the material passing groove 211, reduces the debris remaining in the equipment, and the pulling-out box is slidably installed on the collecting box 14, which is convenient for storing and cleaning the debris.

[0038] With reference to Figure 1 and Figure 2 The negative pressure mechanism 3 includes a treatment box 31 and a fan 32. The treatment box 31 is arranged on one side of the rack 1, and the treatment box 31 is connected with the collecting box 14 through an air pipe 33. The fan 32 is arranged on the side of the treatment box 31 away from the air pipe 33. When the fan 32 works, negative pressure is formed in the treatment box 31, and the air and small dust in the collecting box 14 are sucked into the treatment box 31 through the air pipe 33. The treatment box 31 is provided with a filter for filtering the dust. The filter is usually a filter screen, and the material of the filter screen is usually a metal screen or a non-woven fabric, which can effectively filter and intercept the sucked dust and reduce air pollution caused by dust discharge.

[0039] With reference to Figure 3 and Figure 4 The material scraping piece 4 includes a pushing mechanism 41 and a lower scraping plate 42. The pushing mechanism 41 is arranged on the first enclosure 21, and the lower scraping plate 42 is horizontally arranged at the material passing groove 211 of the first enclosure 21 and connected with the pushing mechanism 41. The lower scraping plate 42 is distributed along the length direction of the material passing groove 211, and the side surface of the lower scraping plate 42 facing downward is attached to the table surface of the lower pressing table 11. The pushing mechanism 41 includes a pushing cylinder 411 and a mounting frame 412. The pushing cylinder 411 is horizontally arranged on the first enclosure 21, the mounting frame 412 is arranged at one end of the piston rod of the pushing cylinder 411 and located at the material passing groove 211 of the first enclosure 21, and the lower scraping plate 42 is arranged on the mounting frame 412. The pushing cylinder 411 drives the mounting frame 412 to move, and in turn drives the lower scraping plate 42 to slide along the direction of the table surface of the lower pressing table 11. During the sliding process, the lower scraping plate 42 attached to the table surface completely scrapes the debris to the collecting box 14 on one side, reducing the probability of debris remaining on the table surface.

[0040] With reference to Figure 3 and Figure 4The pushing mechanism 41 is further provided with an upper scraping plate 43 which is the same as the lower scraping plate 42 on the upper pressing table. One side of the upper scraping plate 43 is attached to the surface of the upper pressing table, and the upper scraping plate 43 is opposite to the lower scraping plate 42. The mounting frame 412 is provided with an adjusting part 5 which comprises a screw rod 51 and a moving block 52. The mounting frame 412 is provided with a guide groove 4121 along the length direction of the lower scraping plate 42. The lower side of the upper scraping plate 43 is provided with a guide block 431 which is connected to the mounting frame 412 in the vertical direction through the guide groove 4121. The screw rod 51 is rotatably installed at the guide groove 4121 of the mounting frame 412 and is distributed along the length direction of the guide groove 4121. The screw rod 51 is provided with two opposite threads. The moving block 52 is slidably installed at the guide groove 4121 of the mounting frame 412. The moving block 52 is provided with two moving blocks which are threadedly connected to the two threads of the screw rod 51 respectively. The moving block 52 is rotatably provided with a rotating rod 521. One end of the rotating rod 521 away from the moving block 52 is rotatably connected to the lower side of the guide block 431. The mounting frame 412 is provided with a driving part 6 for driving the screw rod 51 to rotate. The driving part 6 comprises a worm wheel 61 and a worm 62. The worm wheel 61 is coaxially connected to the screw rod 51. The worm 62 is rotatably installed on the mounting frame 412. One end of the worm 62 is located outside the mounting frame 412. The worm 62 is meshed with one side of the worm wheel. The worm 62 drives the worm wheel 61 to rotate by rotating one end of the worm 62. The screw rod 51 is synchronously rotated by the transmission. When the screw rod 51 rotates, the two moving blocks 52 are slid along the guide groove 4121 towards each other or away from each other, the rotating rod 521 is rotated, and the guide block 431 is slid along the guide groove 4121 of the mounting frame 412, thereby realizing the lifting movement of the upper scraping plate 43. The adjusting part 5 adjusts the attachment of the upper scraping plate 43 to the surface of the upper pressing plate 12 according to the actual position of the upper pressing plate 12 or the test requirements of the cement test block of different thicknesses, so as to ensure that the upper scraping plate 43 is closely attached to the surface of the upper pressing plate 12 for cleaning in different test scenarios, thereby improving the adaptability and cleaning effect of the device.

[0041] With reference to Figure 3 and Figure 4 The lower scraping plate 42 is provided with a vertical brush plate 44 which is distributed along the length direction of the lower scraping plate 42. The brush plate 44 is provided with a brush. One end of the brush is flush with one side of the lower scraping plate 42. The upper scraping plate 43 is provided with the same brush plate 44 as the lower scraping plate 42. When the lower scraping plate 42 moves, the brush on the brush plate 44 sweeps the fine debris remaining on the surface of the lower pressing table 11, thereby improving the scraping and cleaning effect of the scraping plate and making the cleaning more thorough. The upper scraping plate 43 is provided with the same brush plate 44, thereby further improving the cleaning degree of the upper and lower pressing plate surfaces.

[0042] The implementation principle of the cement block detection pressure testing machine is as follows: the cement block to be detected is placed on the lower pressing table 11, the lifting cylinder 16 drives the first surrounding fence 21 and the second surrounding fence 22 to be closed, the hydraulic part 13 drives the upper pressing plate 12 to move towards the direction of the lower pressing table 11, and the cement block is subjected to compression test until the cement block is broken. After the upper pressing plate 12 returns, the push cylinder 411 drives the mounting frame 412 to move, drives the lower scraping plate 42 and the upper scraping plate 43 to slide synchronously, the lower scraping plate 42 scrapes the debris on the lower pressing table 11 to the guide plate 111, and the debris enters the collecting box 14 through the guide plate 111 and the material passing groove 211, meanwhile, the bristles on the bristle plate 44 clean the small debris, and the upper scraping plate 43 scrapes the adhered debris on the upper pressing plate 12. The fan 32 works to form negative pressure in the treatment box 31, and the air and small debris in the collecting box 14 are sucked into the treatment box 31 through the air pipe 33, and the filter part filters the debris.

[0043] When adjustment is needed, the worm 62 drives the worm wheel 61 to rotate, and in turn drives the screw rod 51 to rotate, the screw rod 51 drives the moving block 52 to slide, the moving block 52 drives the rotating rod 521 to rotate, and in turn drives the upper scraping plate 43 to adjust the position, so as to adapt to the test requirement of the cement test block of different sizes.

[0044] The above are the preferred embodiments of the present application, and are not used to limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape and principle of the present application should be covered in the protection scope of the present application.

Claims

1. A pressure testing machine for cement block detection, comprising a frame (1), a lower pressing table (11) and an upper pressing plate (12) are arranged on the frame (1), the upper pressing plate (12) is slidingly installed on the frame (1) in the vertical direction and is oppositely distributed with the lower pressing table (11), characterized in that: The rack (1) is provided with a hydraulic part (13) for driving the upper pressing plate (12) to lift, the rack (1) is provided with a cleaning assembly and an annular enclosure (2), the annular enclosure (2) covers the periphery of the lower pressing table (11), the rack (1) is provided with a collecting box (14) at the outer peripheral wall of the lower pressing table (11), the cleaning assembly comprises a negative pressure mechanism (3) for providing a negative pressure environment in the collecting box (14) and a scraping part (4) for scraping the debris on the lower pressing table (11).

2. The compression testing machine for testing of cement blocks according to claim 1, characterized in that: The annular enclosure (2) comprises a first enclosure (21) and a second enclosure (22), the rack (1) is provided with a lifting cylinder (16), the first enclosure (21) is slidingly installed on the rack (1) and connected with one end of the piston rod of the lifting cylinder (16), the first enclosure (21) and the second enclosure (22) are respectively distributed at opposite sides of the lower pressing table (11), the first enclosure (21) and the second enclosure (22) are annularly distributed and cover the lower pressing table (11) inside, and the second enclosure (22) is connected with the upper pressing plate (12).

3. The compression testing machine for testing of cement blocks as claimed in claim 1 wherein: The negative pressure mechanism (3) comprises a treatment box (31) and a fan (32), the treatment box (31) is arranged on one side of the rack (1), the treatment box (31) is connected with the collecting box (14) through an air pipe (33), the fan (32) is arranged on the side of the treatment box (31) away from the air pipe (33), and the treatment box (31) is provided with a filtering part for filtering dust.

4. The compression testing machine for testing of cement blocks as claimed in claim 2 wherein: The lower pressing table (11) is provided with inclined guide plates (111) at opposite sides towards the first enclosure (21), the opening of the collecting box (14) is located at the lower side of the guide plate (111), and the first enclosure (21) is provided with a material passing groove (211) at the side towards the guide plate (111), and the position of the material passing groove (211) corresponds to the opening position of the collecting box (14).

5. The compression testing machine for testing of cement blocks as claimed in claim 2 wherein: The scraping part (4) comprises a pushing mechanism (41) and a lower scraping plate (42), the pushing mechanism (41) is arranged on the first enclosure (21), the lower scraping plate (42) is arranged at the material passing groove (211) of the first enclosure (21) and connected with the pushing mechanism (41), one side surface of the lower scraping plate (42) is attached to the table surface of the lower pressing table (11), and the pushing mechanism (41) is used for pushing the lower scraping plate (42) to slide along the direction of the table surface of the lower pressing table (11).

6. The compression testing machine for testing of cement blocks as claimed in claim 5 wherein: The pushing mechanism (41) is provided with an upper scraping plate (43) which is the same as the lower scraping plate (42), one side of the upper scraping plate (43) is attached to the table surface of the upper pressing table, and the upper scraping plate (43) is oppositely distributed with the lower scraping plate (42).

7. The compression testing machine for testing of cement blocks as claimed in claim 6 wherein: The lower scraping plate (42) is provided with a bristle plate (44) distributed along the length direction of the lower scraping plate (42), the bristle plate (44) is provided with bristles, one end of the bristles is flush with one side of the lower scraping plate (42), and the upper scraping plate (43) is provided with the same bristle plate (44) as that on the lower scraping plate (42).

8. The compression testing machine for testing of cement blocks as claimed in claim 6 wherein: The pushing mechanism (41) comprises a pushing cylinder (411) and a mounting frame (412), the pushing cylinder (411) is arranged on the first fence (21), the mounting frame (412) is arranged at one end of a piston rod of the pushing cylinder (411) and located at the material passing groove (211) of the first fence (21), the lower scraping plate (42) and the upper scraping plate (43) are arranged on the mounting frame (412), and the mounting frame (412) is provided with an adjusting part (5) for driving the upper scraping plate (43) to move towards or away from the upper pressing plate (12).

9. The compression testing machine for testing of cement blocks as claimed in claim 8 wherein: The adjusting part (5) comprises a screw rod (51) and a moving block (52), the mounting frame (412) is provided with a guide groove (4121), the upper scraping plate (43) is provided with a guide block (431) on the downward side, the guide block (431) is in sliding connection with the mounting frame (412) through the guide groove (4121), the screw rod (51) is rotationally arranged at the guide groove (4121) of the mounting frame (412), the screw rod (51) is provided with two opposite threads, the moving block (52) is in sliding connection with the guide groove (4121) of the mounting frame (412), the moving block (52) is provided with two and is in threaded connection with the screw rod (51) at the two threads, respectively, the moving block (52) is rotationally arranged with a rotating rod (521), one end of the rotating rod (521) away from the moving block (52) is rotationally connected with the guide block (431), and the mounting frame (412) is provided with a driving part (6) for driving the screw rod (51) to rotate.

10. The compression testing machine for testing of cement blocks as claimed in claim 9 wherein: The driving part (6) comprises a worm wheel (61) and a worm (62), the worm wheel (61) is coaxially connected with the screw rod (51), the worm (62) is rotationally arranged on the mounting frame (412), one end of the worm (62) is located outside the mounting frame (412), and the worm (62) is in engagement with one side of the worm wheel.

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