Concrete block cutting device and method for building

Abstract

The invention provides a building concrete block cutting device and method, and belongs to the technical field of concrete block processing machineries, the cutting device comprises a cutting unit, an adsorption unit and an air exhaust unit, the cutting unit comprises a cutting table and a cutting mechanism, and the cutting mechanism is used for cutting blocks; the adsorption unit comprises a plurality of bases arranged on the cutting table and assembled into a row, adsorption columns in one-to-one correspondence with the bases and elastic parts fixedly connected between the bases and the adsorption columns, the bases are arranged in multiple rows, the top faces of the bases are provided with containing cavities, the adsorption columns are arranged in the containing cavities in a sliding mode in the vertical direction, and the elastic parts have pre-tightening force enabling the adsorption columns to stretch out of the containing cavities. An adsorption cavity is formed in the top surface of the adsorption column, and a sliding groove communicating with the outside is formed in the inner wall of the adsorption cavity in the first direction; the air exhaust unit comprises an air exhaust roller arranged in the sliding groove and a driving structure, the air exhaust roller is slidably connected with the adsorption column in the first direction, and the driving structure is used for driving the air exhaust roller to move in the first direction. The cost of the cutting equipment is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of concrete block processing machinery, and particularly relates to a device and method for cutting concrete blocks for construction. Background Art

[0002] With the rapid development of my country's construction industrialization, concrete blocks have become one of the most important building materials in masonry structures due to their excellent mechanical properties, durability, and cost-effectiveness. However, in actual construction, a large number of blocks require on-site cutting and processing to meet complex masonry structural requirements, such as pre-reserving door and window openings, laying pipelines, and splicing non-modular sizes.

[0003] Currently, common concrete block cutting devices typically require an operator to place the block to be cut on a work surface and manually secure it with a clamp or clamping device. However, because the shapes of blocks vary depending on their placement, operators must change the clamps to match the block shape before cutting. This means that a single cutting device requires multiple clamps, increasing equipment costs. Summary of the Invention

[0004] The embodiments of the present invention provide a device and method for cutting building concrete blocks, aiming to solve the technical problem of high cost of cutting equipment.

[0005] In a first aspect, an embodiment of the present invention provides a construction concrete block cutting device, comprising:

[0006] A cutting unit, comprising a cutting table and a cutting mechanism connected to the cutting table, wherein the cutting mechanism is used to cut the building blocks;

[0007] An adsorption unit comprises a plurality of bases provided on the cutting table and grouped into a row, adsorption columns corresponding to the bases one by one, and an elastic member fixed between the bases and the adsorption columns, wherein the bases are provided with a plurality of rows, the top surface of the bases is recessed inward to form a receiving cavity, the adsorption columns are provided in the receiving cavity, the adsorption columns are slidably connected to the base along the up and down directions, the elastic member has a pre-tightening force that causes the adsorption columns to extend out of the receiving cavity, the top surface of the adsorption columns is recessed inward to form the adsorption cavity, the inner wall of the adsorption cavity is provided with a slide groove communicating with the outside, and the slide groove extends along the first direction; and

[0008] The air extraction unit includes an air extraction roller arranged in the slide groove and a driving structure connected to the air extraction roller. The air extraction roller is slidingly connected to the adsorption column along the first direction, and the driving structure is used to drive the air extraction roller to move along the first direction.

[0009] In combination with the first aspect, in a possible implementation, an inner wall of the storage chamber is provided with an avoidance groove in the vertical direction for the air extraction roller to extend into;

[0010] The driving structure includes:

[0011] a threaded sleeve disposed in the avoidance groove, the threaded sleeve being rotatably connected to the adsorption column, the threaded sleeve having the first direction as a rotation axis, and the threaded sleeve being also threadedly connected to the air extraction roller;

[0012] a transmission gear fixedly connected to the outer periphery of the threaded sleeve; and

[0013] A transmission rack is arranged in the avoidance groove along the up and down directions. The transmission rack is fixed to the base and is also meshed with the transmission gear.

[0014] In combination with the first aspect, in a possible implementation manner, the adsorption chamber port is provided with an adsorption disk, and the adsorption disk is fixedly connected to the adsorption column.

[0015] In combination with the first aspect, in a possible implementation, an air-filled cavity is provided in the adsorption disk;

[0016] A pressure changing cavity is formed on the inner wall of the avoidance groove, and a pressure plate is provided in the pressure changing cavity, and the pressure plate is connected in a sliding manner along the first direction;

[0017] A vent pipe is fixedly connected between the adsorption disk and the base, and the vent pipe connects the inflation cavity and the pressure transformation cavity.

[0018] In conjunction with the first aspect, in one possible implementation, a plurality of longitudinal seats are provided on the surface of the cutting table at intervals along the second direction, a plurality of transverse seats are provided on the longitudinal seats along the first direction, the transverse seats correspond one-to-one to the base, and the base is fixedly connected to the transverse seats;

[0019] The construction concrete block cutting device also includes an adjustment unit, which includes a longitudinal adjustment structure connected to the longitudinal seat and a transverse adjustment structure connected to the transverse seat. The longitudinal adjustment structure is used to adjust the distance between two adjacent longitudinal seats, and the transverse adjustment structure is used to adjust the distance between two adjacent transverse seats.

[0020] In conjunction with the first aspect, in one possible implementation, one of the longitudinal seats located at the end is marked as a fixed longitudinal seat, which is fixedly connected to the cutting table, and the remaining longitudinal seats are marked as movable longitudinal seats, which are slidably connected to the cutting table along the second direction;

[0021] The longitudinal adjustment structure includes:

[0022] a center roller rotatably connected to the cutting table, the center roller passing through the fixed longitudinal seat and the two being rotatably connected;

[0023] a longitudinal driving member, drivingly connected to the central roller, for driving the central roller to rotate with the second direction as the rotation axis; and

[0024] Multiple adjustment sleeves correspond to the movable longitudinal seats one by one, the adjustment sleeves are fixed to the outer periphery of the center roller, the length of the adjustment sleeves increases successively from the fixed longitudinal seat to the movable longitudinal seat, the outer periphery of the adjustment sleeves is provided with threads, the pitch of the threads increases successively along the direction of increasing length of the adjustment sleeves, and the adjustment sleeves are threadedly connected to the movable longitudinal seat.

[0025] In conjunction with the first aspect, in a possible implementation, the number of the transverse seats is odd, the middle transverse seat is designated as a fixed transverse seat, the fixed transverse seat is fixedly connected to the longitudinal seat, and the remaining transverse seats are designated as movable transverse seats, the movable transverse seats being slidably connected to the longitudinal seat along the first direction;

[0026] The transverse adjustment structure corresponds to the longitudinal seat one by one, and the transverse adjustment structure includes:

[0027] an adjustment seat, slidably connected to the longitudinal seat along the second direction;

[0028] a telescopic member fixedly connected between the longitudinal seat and the adjustment seat, the telescopic member being capable of extending and retracting along the second direction; and

[0029] A plurality of adjustment blocks are fixedly connected to the adjustment seat, and the adjustment blocks are used to extend between two adjacent transverse seats.

[0030] In combination with the first aspect, in a possible implementation, the device further includes a dust shielding unit;

[0031] The dust shielding unit comprises:

[0032] A dust shielding frame is arranged at intervals on the outer periphery of the adsorption unit, the dust shielding frame is fixedly connected to the cutting table, and a pressing groove is opened on the inner wall of the dust shielding frame;

[0033] A dust shield paper, the edge of which extends into the pressing groove, and the dust shield paper is provided with openings corresponding to the bases one by one; and

[0034] A plurality of compression columns are screwed to the dust shielding frame and extend into the compression groove.

[0035] In combination with the first aspect, in a possible implementation, sealing units are provided on all four sides of the base;

[0036] The sealing unit comprises:

[0037] a lower sealing plate, fixedly connected to the outer wall of the base;

[0038] a lower magnetic block, fixedly connected to the top surface of the lower sealing plate;

[0039] An upper sealing plate is provided above the lower sealing plate, and the upper sealing plate is slidably connected to the base along the up-down direction;

[0040] a limiting member, fixedly connected between the upper sealing plate and the base, and having a pre-tightening force to keep the upper sealing plate in a suspended state; and

[0041] The upper magnetic block is fixed to the bottom surface of the upper sealing plate, and the upper magnetic block and the lower magnetic block attract each other.

[0042] Compared with the prior art, the construction concrete block cutting device provided by the embodiment of the present application forms a closed space with the adsorption chamber. The concrete block presses down on the adsorption column, which is moved downward by the pressure until it is completely retracted into the receiving chamber. During the process of the adsorption column being retracted into the receiving chamber, the driving structure moves the air extraction roller. The movement of the air extraction roller makes the air pressure in the adsorption chamber lower than that in the outside, thereby adsorbing and fixing the concrete block to the adsorption column. In the present invention, regardless of the shape of the concrete block, as long as the bottom surface of the concrete block contacts the adsorption column, the concrete block and the adsorption column are adsorbed and fixed. There is no need to replace different clamps according to the shape of the concrete block, thereby reducing the cost of the cutting equipment.

[0043] In a second aspect, an embodiment of the present invention further provides a method for cutting a building concrete block, comprising the following steps:

[0044] S10, placing the concrete block on the cutting table, pressing the adsorption column downward and being adsorbed and fixed on the adsorption column;

[0045] S20, after fixing the concrete block on the cutting table, start the cutting mechanism to cut the concrete block;

[0046] S30. After the cutting is completed, the staff removes the cut blocks, and the adsorption column is reset under the action of the elastic member. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is a schematic structural diagram of a construction concrete block cutting device according to an embodiment of the present invention;

[0048] Figure 2 A cross-sectional view of an adsorption unit used in an embodiment of the present invention;

[0049] Figure 3 A schematic structural diagram of an adjustment unit used in an embodiment of the present invention;

[0050] Figure 4 for Figure 3 A partial enlarged schematic diagram of part A;

[0051] Figure 5 This is a schematic structural diagram of a dust shielding unit used in an embodiment of the present invention.

[0052] Description of reference numerals:

[0053] 10. Cutting unit; 101. Cutting table; 1011. Fixed longitudinal seat; 1012. Mobile transverse seat; 1013. Fixed transverse seat; 1014. Mobile transverse seat;

[0054] 20. Adsorption unit; 201. Base; 2011. Storage chamber; 2012. Avoidance groove; 2013. Pressure chamber; 2014. Air pressure plate; 202. Adsorption column; 2021. Adsorption chamber; 2022. Slide; 2023. Guide block; 2024. Moving plate; 2025. Pull rope; 2026. Deformable member; 203. Elastic member;

[0055] 30. Air extraction unit; 301. Air extraction roller; 3011. Guide groove; 302. Threaded sleeve; 303. Transmission gear; 304. Transmission rack;

[0056] 40. Adsorption disk; 401. Inflatable cavity; 402. Ventilation tube;

[0057] 50. Adjustment unit; 501. Center roller; 502. Longitudinal drive member; 503. Adjustment sleeve; 504. Adjustment seat; 505. Telescopic member; 506. Adjustment block;

[0058] 60, dust shield unit; 601, dust shield frame; 6011, pressing groove; 602, dust shield paper; 6021, notch; 603, pressing column;

[0059] 70. Sealing unit; 701. Lower sealing plate; 702. Upper sealing plate; 703. Limiting member. DETAILED DESCRIPTION

[0060] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to 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.

[0061] Please also refer to Figures 1 to 5, the present invention is described. A construction concrete block cutting device, comprising a cutting unit 10, an adsorption unit 20 and an exhaust unit 30; the cutting unit 10 comprises a cutting table 101 and a cutting mechanism (not shown) connected to the cutting table 101, the cutting mechanism being used to cut blocks, the cutting mechanism being a conventional cutting device and not described in detail in this application; the adsorption unit 20 comprises a plurality of bases 201 provided on the cutting table 101 and grouped into a row, adsorption columns 202 corresponding one to one with the bases 201, and elastic members 203 fixed between the bases 201 and the adsorption columns 202, the bases 201 being provided with a plurality of rows, the top surface of the bases 201 being recessed inwardly to form a receiving cavity 2011, the adsorption columns 202 is arranged in the storage chamber 2011, and the adsorption column 202 is slidably connected to the base 201 along the up and down directions. The elastic member 203 has a pre-tightening force that makes the adsorption column 202 extend out of the storage chamber 2011. The top surface of the adsorption column 202 is recessed inward to form an adsorption chamber 2021. The inner wall of the adsorption chamber 2021 is provided with a slide groove 2022 connected to the outside world, and the slide groove 2022 extends along the first direction; the air extraction unit 30 includes an air extraction roller 301 arranged in the slide groove 2022 and a driving structure connected to the air extraction roller 301. The air extraction roller 301 is slidably connected to the adsorption column 202 along the first direction, and the driving structure is used to drive the air extraction roller 301 to move along the first direction.

[0062] The present embodiment provides a construction concrete block cutting device. After the concrete block is placed on the cutting table 101, the bottom surface of the concrete block and the adsorption chamber 2021 form a closed space. After the concrete block contacts the adsorption column 202, the adsorption column 202 is pressed down by its own gravity, causing the adsorption column 202 to move into the storage chamber 2011; the adsorption column 202 moves to squeeze the elastic member 203, causing the elastic member 203 to be in a compressed state. At the same time, the movement of the adsorption column 202 drives the exhaust roller 301 to move along the first direction through the driving structure. The volume of the space in the adsorption chamber 2021 that can accommodate gas increases, but the total amount of gas remains unchanged, so that the air pressure in the adsorption chamber 2021 is lower than that in the outside world, thereby adsorbing and fixing the concrete block and the adsorption column 202. After the concrete block is fixed, the cutting mechanism is started to cut the concrete block. After the cutting is completed, the staff removes the concrete block, and the concrete block moves upward. The elastic member 203 releases the elastic force to drive the adsorption column 202 to move upward until the adsorption column 202 is reset; after the concrete block moves upward and separates from the adsorption column 202, the adsorption chamber 2021 is connected to the outside world, so that the air pressure in the adsorption chamber 2021 is restored, thereby resetting the vacuum roller 301.

[0063] Compared with the prior art, the concrete block and the adsorption chamber 2021 form a closed space. The concrete block presses down on the adsorption column 202, which is then forced downward by the pressure until it is completely retracted into the receiving chamber 2011. During the process of the adsorption column 202 being retracted into the receiving chamber 2011, the driving structure moves the air extraction roller 301. The movement of the air extraction roller 301 causes the air pressure in the adsorption chamber 2021 to be lower than that outside, thereby adsorbing and fixing the concrete block to the adsorption column 202. In the present invention, regardless of the shape of the concrete block, the concrete block and the adsorption column 202 can be adsorbed and fixed as long as the bottom surface of the concrete block contacts the adsorption column 202. There is no need to replace different clamps for different shapes of concrete blocks, thereby reducing the cost of cutting equipment.

[0064] In some embodiments, see Figure 2 The inner wall of the storage chamber 2011 is provided with an avoidance groove 2012 along the up and down directions for the air extraction roller 301 to extend into; the driving structure includes a threaded sleeve 302, a transmission gear 303 and a transmission rack 304; the threaded sleeve 302 is arranged in the avoidance groove 2012, the threaded sleeve 302 is rotatably connected to the adsorption column 202, the threaded sleeve 302 uses the first direction as the rotation axis, and the threaded sleeve 302 is also screwed to the air extraction roller 301; the transmission gear 303 is fixed to the outer periphery of the threaded sleeve 302; the transmission rack 304 is arranged in the avoidance groove 2012 along the up and down directions, the transmission rack 304 is fixed to the base 201, and the transmission rack 304 is also engaged with the transmission gear 303.

[0065] Specifically, a guide block 2023 is fixedly connected to the inner wall of the slide groove 2022 , and the air extraction roller 301 is provided with a guide groove 3011 along its own axial direction, which is slidably adapted to the guide block 2023 .

[0066] During the downward movement of the adsorption column 202, the adsorption column 202 drives the threaded sleeve 302 to move downward. The downward movement of the threaded sleeve 302 causes the transmission gear 303 to roll along the transmission rack 304, thereby causing the transmission gear 303 to drive the threaded sleeve 302 to rotate. The rotation of the threaded sleeve 302 causes the air extraction roller 301 to move. The movement of the air extraction roller 301 causes the guide block 2023 to slide along the guide groove 3011, so that the air extraction roller 301 can only move along its own axial direction.

[0067] The gravity of the concrete blocks is converted into a power source for the movement of the air extraction roller 301, and there is no need to configure a separate power source for the air extraction roller 301, thereby simplifying the structure.

[0068] In some embodiments, see Figure 2 The adsorption chamber 2021 has an adsorption plate 40 at its port. The adsorption plate 40 is made of a flexible material such as rubber. The adsorption plate 40 is fixedly connected to the adsorption column 202 .

[0069] When the adsorption plate 40 contacts the concrete block, it will undergo elastic deformation, fully filling the tiny unevenness on the surface of the concrete block, ensuring the sealing of the adsorption chamber 2021, and creating conditions for forming an effective negative pressure; compared with the direct contact of the hard adsorption column 202, the flexible adsorption plate 40 can avoid leaving indentations or causing damage on the surface of the block.

[0070] In some embodiments, see Figure 2 An inflation chamber 401 is provided in the adsorption disk 40; a variable pressure chamber 2013 is provided on the inner wall of the avoidance groove 2012, and a pressure plate 2014 is provided in the variable pressure chamber 2013, and the pressure plate 2014 is connected by sliding along the first direction; a ventilation pipe 402 is fixed between the adsorption disk 40 and the base 201, and the ventilation pipe 402 connects the inflation chamber 401 and the variable pressure chamber 2013.

[0071] When the vacuum roller 301 moves, it will squeeze the air pressure plate 2014, so that the air pressure plate 2014 squeezes the gas in the transformer chamber 2013, so that the gas in the transformer chamber 2013 is filled into the inflation chamber 401 through the vent pipe 402; after the gas is filled into the inflation chamber 401, the adsorption disk 40 will expand and fit tightly with the bottom surface of the concrete block, thereby further ensuring the sealing of the adsorption chamber 2021.

[0072] In some embodiments, see Figure 3 The surface of the cutting table 101 is provided with a plurality of longitudinal seats at intervals along the second direction, and a plurality of transverse seats are provided on the longitudinal seats along the first direction. The transverse seats correspond to the base 201 one by one, and the base 201 is fixedly connected to the transverse seats.

[0073] The construction concrete block cutting device also includes an adjustment unit 50, which includes a longitudinal adjustment structure connected to the longitudinal seat and a transverse adjustment structure connected to the transverse seat. The longitudinal adjustment structure is used to adjust the distance between two adjacent longitudinal seats, and the transverse adjustment structure is used to adjust the distance between two adjacent transverse seats.

[0074] The longitudinal adjustment structure drives the longitudinal seat to move along the second direction, changing the spacing between rows; the transverse adjustment structure drives the transverse seat to move along the first direction, changing the spacing between adsorption points on each row. Through the cooperation of the two, the entire adsorption matrix layout can be adjusted.

[0075] The overall distribution range of the adsorption unit 20 array can be flexibly adjusted through the lateral and longitudinal adjustment structures. Whether it is a small standard concrete block or a large special-shaped concrete block, the adsorption points can be adjusted to the most effective support position. For blocks of a specific size, the adsorption points can be concentrated near their center of gravity and the area to be cut, providing the most stable support and reducing cutting vibration.

[0076] In some embodiments, see Figure 3One of the longitudinal seats located at the end is marked as a fixed longitudinal seat 1011, which is fixedly connected to the cutting table 101, and the remaining longitudinal seats are marked as movable longitudinal seats, which are slidably connected to the cutting table 101 along the second direction.

[0077] The longitudinal adjustment structure includes a center roller 501, a longitudinal drive member 502 and a plurality of adjustment sleeves 503; the center roller 501 is rotatably connected to the cutting table 101, the center roller 501 passes through the fixed longitudinal seat 1011 and the two are rotatably connected; the longitudinal drive member 502 is transmission-connected to the center roller 501, and is used to drive the center roller 501 to rotate along the second direction of the rotation axis, and the longitudinal drive member 502 is a servo motor; the adjustment sleeve 503 corresponds to the movable longitudinal seat one by one, and the adjustment sleeve 503 is fixed to the outer periphery of the center roller 501. The length of the adjustment sleeve 503 increases successively from the fixed longitudinal seat 1011 to the direction of the movable longitudinal seat. The outer periphery of the adjustment sleeve 503 is provided with a thread, and the pitch of the thread increases successively along the direction of increasing length of the adjustment sleeve 503. The adjustment sleeve 503 is threadedly connected to the movable longitudinal seat.

[0078] It should be noted that the pitch ratio of two adjacent threads can be 2:1.

[0079] The longitudinal driving member 502 is started to drive the center roller 501 to rotate, and the rotation of the center roller 501 drives the adjustment sleeve 503 to rotate. The rotation of the adjustment sleeve 503 causes the corresponding movable longitudinal seat to move, thereby adjusting the distance between two adjacent longitudinal seats. Since the pitch ratio of two adjacent threads is 2:1, the distance between two adjacent longitudinal seats always remains equal.

[0080] In some embodiments, see Figure 3 The number of transverse seats is odd, the transverse seat located in the middle is marked as a fixed transverse seat 1013, the fixed transverse seat 1013 is fixedly connected to the longitudinal seat, and the remaining transverse seats are marked as movable transverse seats 10141012, and the movable transverse seats 10141012 are slidably connected to the longitudinal seat along the first direction.

[0081] The transverse adjustment structure corresponds one-to-one to the longitudinal seat, and the transverse adjustment structure includes an adjustment seat 504, a telescopic member 505 and a plurality of adjustment blocks 506; the adjustment seat 504 is connected to the longitudinal seat in a sliding manner along the second direction; the telescopic member 505 is fixed between the longitudinal seat and the adjustment seat 504, and the telescopic member 505 is telescopic along the second direction. The telescopic member 505 is a telescopic oil cylinder or a hydraulic cylinder; a plurality of adjustment blocks 506 are fixed to the adjustment seat 504, and the adjustment block 506 is used to extend between two adjacent transverse seats.

[0082] The telescopic member 505 is activated to drive the adjustment seat 504 to move, and the adjustment seat 504 drives the adjustment block 506 to move, thereby adjusting the depth of the adjustment block 506 inserted between the two transverse seats, thereby adjusting the distance between the two adjacent transverse seats.

[0083] In some embodiments, see Figure 1 and Figure 5 The construction concrete block cutting device also includes a dust shielding unit 60; the dust shielding unit 60 includes a dust shielding frame 601, a dust shielding paper 602 and a plurality of compression columns 603; the dust shielding frame 601 is arranged at intervals on the outer periphery of the adsorption unit 20, the dust shielding frame 601 is fixedly connected to the cutting table 101, and a compression groove 6011 is provided on the inner wall of the dust shielding frame 601; the edge of the dust shielding paper 602 extends into the compression groove 6011, and the dust shielding paper 602 is provided with an opening corresponding to the base 201 one by one; the compression column 603 is screwed to the dust shielding frame 601 and extends into the compression groove 6011.

[0084] Before cutting, the dust shield paper 602 is spread out, and notches 6021 corresponding to the base 201 are cut in the dust shield paper 602. The dust shield paper 602 is then inserted into the pressing groove 6011. Finally, the pressing post 603 is tightened to press the edges of the dust shield paper 602. The dust shield paper 602 absorbs the dust generated by cutting, preventing it from falling into the adjustment unit 50, thereby ensuring the service life of the adjustment unit 50.

[0085] In some embodiments, see Figure 3 and Figure 4 , sealing units 70 are provided on all four sides of the base 201; the sealing unit 70 includes a lower sealing plate 701, a lower magnetic block, an upper sealing plate 702, a limiting member 703 and an upper magnetic block; the lower sealing plate 701 is fixed to the outer wall of the base 201; the lower magnetic block is fixed to the top surface of the lower sealing plate 701; the upper sealing plate 702 is arranged above the lower sealing plate 701, and the upper sealing plate 702 is slidably connected to the base 201 along the up and down directions; the limiting member 703 is fixed between the upper sealing plate 702 and the base 201, and has a pre-tightening force that keeps the upper sealing plate 702 in a suspended state, and the limiting member 703 is a spring rod or a spring; the upper magnetic block is fixed to the bottom surface of the upper sealing plate 702, and the upper magnetic block and the lower magnetic block attract each other.

[0086] After passing the base 201 through the dust-proof paper 602 from the gap 6021, the staff moves the upper sealing plate 702 so that the upper sealing plate 702 moves downward until the upper magnetic block enters the magnetic range of the lower magnetic block. The upper magnetic block and the lower magnetic block attract each other. At this time, the limit member 703 is in a stretched state, and the elastic force of the limit member 703 cannot overcome the magnetic force between the lower magnetic block and the upper magnetic block, thereby sealing the edge of the gap 6021 and reducing dust from falling into the adjustment unit 50.

[0087] When the dust mask paper 602 needs to be replaced, the staff manually moves the upper cover plate 702 so that the upper cover plate 702 moves upward until the upper magnetic block is out of the magnetic range of the lower magnetic block. At this time, the limit piece 703 is at its original length, thereby releasing the gap 6021 of the dust mask paper 602.

[0088] In some embodiments, see Figure 2 A movable plate 2024 is provided in the adsorption chamber 2021. The movable plate 2024 is slidably connected to the adsorption column 202 in the up and down directions. A pull rope 2025 is fixed between the movable plate 2024 and the suction roller 301. A deformable part 2026 is fixed between the movable plate 2024 and the adsorption column 202. The deformable part 2026 has a pre-tightening force that causes the movable plate 2024 to move upward. The deformable part 2026 is a spring or a spring rod.

[0089] During the movement of the suction roller 301, the suction roller 301 pulls the movable plate 2024 downward through the pull rope 2025. The downward movement of the movable plate 2024 increases the space for accommodating gas above the movable plate 2024. However, the total amount of gas above the movable plate 2024 remains unchanged, thereby reducing the air pressure above the movable plate 2024, making the air pressure above the movable plate 2024 lower than the external air pressure, thereby generating suction.

[0090] The air pressure change in the sliding cavity is converted into the air pressure change above the movable plate 2024, and the air pressure difference is increased, thereby increasing the suction force generated, thereby improving the adsorption tightness between the concrete block and the adsorption column 202.

[0091] Based on the same inventive concept, the embodiment of the present application also provides a method for cutting a building concrete block, the steps of which are as follows:

[0092] S10, placing a concrete block on the cutting table 101, the concrete block presses down the adsorption column 202 and is adsorbed and fixed to the adsorption column 202;

[0093] S20, after fixing the concrete block on the cutting table 101, start the cutting mechanism to cut the concrete block;

[0094] S30, after the cutting is completed, the staff removes the cut blocks, and the adsorption column 202 is reset under the action of the elastic member 203.

[0095] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A construction concrete block cutting device, characterized in that: include: A cutting unit, comprising a cutting table and a cutting mechanism connected to the cutting table, wherein the cutting mechanism is used to cut the building blocks; The adsorption unit comprises a plurality of bases provided on the cutting table and grouped into a row, adsorption columns corresponding to the bases one by one, and an elastic member fixed between the bases and the adsorption columns, wherein the bases are provided with a plurality of rows, the top surface of the bases is recessed inward to form a receiving cavity, the adsorption columns are provided in the receiving cavity, the adsorption columns are slidably connected to the base along the up and down directions, the elastic member has a pre-tightening force that causes the adsorption columns to extend out of the receiving cavity, the top surface of the adsorption columns is recessed inward to form the adsorption cavity, the inner wall of the adsorption cavity is provided with a slide groove communicating with the outside, and the slide groove extends along the first direction; as well as The air extraction unit includes an air extraction roller arranged in the slide groove and a driving structure connected to the air extraction roller. The air extraction roller is slidingly connected to the adsorption column along the first direction, and the driving structure is used to drive the air extraction roller to move along the first direction.

2. The construction concrete block cutting device according to claim 1, wherein: The inner wall of the storage chamber is provided with an avoidance groove in the up-down direction for the air extraction roller to extend into; The driving structure includes: a threaded sleeve disposed in the avoidance groove, the threaded sleeve being rotatably connected to the adsorption column, the threaded sleeve having the first direction as a rotation axis, and the threaded sleeve being also threadedly connected to the air extraction roller; a transmission gear fixedly connected to the outer periphery of the threaded sleeve; and A transmission rack is arranged in the avoidance groove along the up and down directions. The transmission rack is fixed to the base and is also meshed with the transmission gear.

3. The construction concrete block cutting device according to claim 2, wherein: The adsorption chamber port is provided with an adsorption disk, and the adsorption disk is fixedly connected to the adsorption column.

4. The construction concrete block cutting device according to claim 3, wherein: An air-filled cavity is provided in the adsorption disk; A pressure changing cavity is formed on the inner wall of the avoidance groove, and a pressure plate is provided in the pressure changing cavity, and the pressure plate is connected in a sliding manner along the first direction; A vent pipe is fixedly connected between the adsorption disk and the base, and the vent pipe connects the inflation cavity and the pressure transformation cavity.

5. The construction concrete block cutting device according to claim 1, wherein: The cutting table surface is provided with a plurality of longitudinal seats spaced apart along the second direction, and the longitudinal seats are provided with a plurality of transverse seats along the first direction, the transverse seats correspond to the bases one by one, and the bases are fixedly connected to the transverse seats; The construction concrete block cutting device also includes an adjustment unit, which includes a longitudinal adjustment structure connected to the longitudinal seat and a transverse adjustment structure connected to the transverse seat. The longitudinal adjustment structure is used to adjust the distance between two adjacent longitudinal seats, and the transverse adjustment structure is used to adjust the distance between two adjacent transverse seats.

6. The construction concrete block cutting device according to claim 5, wherein: One of the longitudinal seats located at the end is marked as a fixed longitudinal seat, which is fixedly connected to the cutting table, and the remaining longitudinal seats are marked as movable longitudinal seats, which are slidably connected to the cutting table along the second direction; The longitudinal adjustment structure includes: a center roller rotatably connected to the cutting table, the center roller passing through the fixed longitudinal seat and the two being rotatably connected; a longitudinal driving member, drivingly connected to the central roller, for driving the central roller to rotate with the second direction as the rotation axis; and Multiple adjustment sleeves correspond to the movable longitudinal seats one by one, the adjustment sleeves are fixed to the outer periphery of the center roller, the length of the adjustment sleeves increases successively from the fixed longitudinal seat to the movable longitudinal seat, the outer periphery of the adjustment sleeves is provided with threads, the pitch of the threads increases successively along the direction of increasing length of the adjustment sleeves, and the adjustment sleeves are threadedly connected to the movable longitudinal seat.

7. The construction concrete block cutting device according to claim 5, wherein: The number of the transverse seats is odd, the middle transverse seat is marked as a fixed transverse seat, the fixed transverse seat is fixedly connected to the longitudinal seat, and the remaining transverse seats are marked as movable transverse seats, the movable transverse seats are slidably connected to the longitudinal seat along the first direction; The transverse adjustment structure corresponds to the longitudinal seat one by one, and the transverse adjustment structure includes: an adjustment seat, slidably connected to the longitudinal seat along the second direction; a telescopic member fixedly connected between the longitudinal seat and the adjustment seat, the telescopic member being capable of extending and retracting along the second direction; and A plurality of adjustment blocks are fixedly connected to the adjustment seat, and the adjustment blocks are used to extend between two adjacent transverse seats.

8. The construction concrete block cutting device according to claim 5, wherein: Also includes a dust shield unit; The dust shielding unit comprises: A dust shielding frame is arranged at intervals on the outer periphery of the adsorption unit, the dust shielding frame is fixedly connected to the cutting table, and a pressing groove is opened on the inner wall of the dust shielding frame; A dust shield paper, the edge of which extends into the pressing groove, and the dust shield paper is provided with openings corresponding to the bases one by one; and A plurality of compression columns are screwed to the dust shielding frame and extend into the compression groove.

9. The construction concrete block cutting device according to claim 8, wherein: Sealing units are provided on all sides of the base; The sealing unit comprises: a lower sealing plate, fixedly connected to the outer wall of the base; a lower magnetic block, fixedly connected to the top surface of the lower sealing plate; An upper sealing plate is provided above the lower sealing plate, and the upper sealing plate is slidably connected to the base along the up-down direction; a limiting member, fixedly connected between the upper sealing plate and the base, and having a pre-tightening force to keep the upper sealing plate in a suspended state; and The upper magnetic block is fixed to the bottom surface of the upper sealing plate, and the upper magnetic block and the lower magnetic block attract each other.

10. A method for cutting concrete blocks for construction, characterized in that: Here are the steps: S10, placing the concrete block on the cutting table, pressing the adsorption column downward and being adsorbed and fixed on the adsorption column; S20, after fixing the concrete block on the cutting table, start the cutting mechanism to cut the concrete block; S30. After the cutting is completed, the staff removes the cut blocks, and the adsorption column is reset under the action of the elastic member.

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