Concrete block cutting machine

Abstract

The invention discloses a concrete block cutting machine. The concrete block cutting machine comprises a rack; the working platform comprises a working table and a first moving mechanism for driving the working table to move; the dustproof device comprises a first dustproof cover arranged on the rack in an up-down moving mode, a first lifting mechanism used for driving the first dustproof cover to move, a second dustproof cover arranged on the workbench in an up-down moving and sleeving mode and a second lifting mechanism used for driving the second dustproof cover to move, and the first dustproof cover can cover the second dustproof cover. An annular space with a lower opening is formed between the inner peripheral side of the first dust cover and the outer peripheral side of the second dust cover; the cutting device comprises a frame which is transversely and movably arranged in the first dust cover, a plurality of saw blades which are transversely and uniformly distributed on the inner side of the frame at intervals, and a driving mechanism for driving the frame to transversely move in a reciprocating manner; the air draft device comprises an air draft pipe communicated to the upper end of the first dust cover and a bag-type dust collector connected to one end of the air draft pipe; and the spraying devices are distributed along the peripheral side of the first dust cover.

Description

Technical Field

[0001] The present invention particularly relates to a concrete block cutting machine. Background Art

[0002] Concrete blocks are artificial stone blocks made by mixing cement, coarse aggregates (crushed stones or pebbles), fine aggregates (sand), admixtures and water and hardened. They are a kind of building material with the advantages of high strength, light self-weight, convenient masonry, good wall surface flatness and high construction efficiency. Since the size of concrete blocks has certain standards, most of them need to be cut to adapt to the actual use size during use. Because the existing cutting mechanism is not equipped with a dust removal function, the dust during cutting scatters everywhere, and the operator beside the cutting machine is very easy to inhale a large amount of dust, which causes great damage to physical health. Moreover, the existing dust-proof device is prone to dust accumulation inside and needs to be frequently shut down for manual cleaning, affecting production efficiency. In addition, the existing spray system and the exhaust device do not cooperate well, resulting in the mixture of water mist and dust forming mud and adhering to the concrete blocks or equipment, which easily affects the user experience. Summary of the Invention

[0003] The present invention aims to solve at least one of the problems existing in the related art to a certain extent. For this purpose, the present invention provides a concrete block cutting machine.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A concrete block cutting machine, comprising:

[0006] A frame;

[0007] A working platform, which includes a workbench and a first moving mechanism for driving the workbench to move linearly back and forth;

[0008] A dust-proof device, which includes a first dust-proof cover movably arranged up and down on the frame and a first lifting mechanism for driving the first dust-proof cover to move up and down, and a second dust-proof cover movably sleeved up and down on the workbench and a second lifting mechanism for driving the second dust-proof cover to move upward. The first dust-proof cover can cover the second dust-proof cover, and an annular space with a lower opening is formed between the inner peripheral side of the first dust-proof cover and the outer peripheral side of the second dust-proof cover;

[0009] A cutting device, which includes a frame horizontally movably arranged in the first dust-proof cover, a plurality of saw blades horizontally and evenly spaced on the inner side of the frame, and a driving mechanism for driving the frame to reciprocate horizontally, and the frame can be accommodated in the second dust-proof cover for horizontal reciprocating movement;

[0010] An exhaust device, which includes an exhaust pipe connected to the upper end of the first dust-proof cover and a bag filter connected to one end of the exhaust pipe;

[0011] A spraying device is arranged along the peripheral side of the first dust cover for spraying water into the annular space.

[0012] In one embodiment, it further includes a cleaning device. The cleaning device includes a moving frame arranged in the first dust cover and above the cutting device, and a second moving mechanism for driving the moving frame to reciprocate. There is a vertically downward-opening guide groove in the moving frame. A connecting frame is movably arranged up and down in the vertically downward-opening guide groove. A brush is arranged on the lower side of the connecting frame. A spring is abutted between the upper end of the vertically downward-opening guide groove and the upper side of the connecting frame.

[0013] In one embodiment, the second moving mechanism includes a first screw rod and a first guide shaft respectively arranged in the first dust cover. The first screw rod is rotatably arranged on the first dust cover through a bearing. The moving frame is respectively sleeved on the first screw rod and the first guide shaft, and the first screw rod is in threaded connection with the moving frame. A first motor for driving the first screw rod to rotate is arranged outside the first dust cover.

[0014] In one embodiment, the first lifting mechanism includes a second guide shaft and a second screw rod respectively arranged vertically on the frame. The second screw rod is rotatably arranged on the frame through a bearing. The first dust cover is respectively sleeved on the second screw rod and the second guide shaft, and the second screw rod is in threaded connection with the first dust cover. A second motor for driving the second screw rod to rotate is arranged on the frame.

[0015] In one embodiment, the second lifting mechanism includes guide blocks symmetrically arranged on both sides of the frame. The guide blocks have a guiding inclined surface. Top blocks respectively extend symmetrically on both sides of the second dust cover. Rollers or balls are movably arranged at the lower ends of the top blocks. The rollers or balls can be displaced along with the top blocks and abut against the guiding inclined surface, so that the second dust cover is displaced upward relative to the workbench.

[0016] In one embodiment, the first moving mechanism includes a slide rail arranged on the frame. The workbench is movably arranged on the slide rail through a slider and moves along the axial direction of the slide rail. A hydraulic cylinder for driving the workbench to displace is arranged on the frame.

[0017] In one embodiment, the driving mechanism includes a third motor arranged on the frame. A driving wheel is arranged on the driving shaft of the third motor. An eccentric shaft is arranged on one side of the driving wheel. A driving rod is hinged between the eccentric shaft and the frame.

[0018] In one embodiment, transverse guide grooves are respectively arranged on the two inner sides of the first dust cover. Suspension rods are respectively arranged on both sides of the frame. Rollers are rotatably arranged on the suspension rods. The rollers are movably arranged in the transverse guide grooves and can move along the axial direction of the transverse guide grooves.

[0019] In one embodiment, the spraying device includes a spray pipe respectively arranged on the outer peripheral side of the first dust-proof cover. Nozzles are arranged at intervals along the axial direction of the spray pipe, and the nozzles extend to the inner side of the first dust-proof cover and are located in the annular space.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] In the present invention, a nested structure is formed by the downward movement of the first dust-proof cover and the upward movement of the second dust-proof cover to limit the flow space route of dust. In cooperation with the suction fan and the suction pipe in the bag filter, the dust in the first dust-proof cover is sucked and removed. When too much dust overflows from the lower opening of the annular space formed by the combination of the first dust-proof cover and the second dust-proof cover, it can be intercepted by the spraying device to form a dry-wet collaborative dust removal system;

[0022] Moreover, the spraying device does not need to spray over a large area. Only spraying the annular space can achieve dust-proof overflow, reducing the spraying space and effectively reducing the water consumption;

[0023] When the first dust-proof cover moves downward relative to the second dust-proof cover, as the first dust-proof cover moves downward, the air in the first dust-proof cover will gradually be pressed into the second dust-proof cover, which can accelerate the flow of dust in the second dust-proof cover during cutting, facilitating the suction and dust removal by the suction device, and effectively avoiding the problem of dust accumulation caused by insufficient suction at positions far from the suction pipe. Description of the Drawings

[0024] Figure 1 is a perspective view of a concrete block cutting machine in the present invention;

[0025] Figure 2 is a partial sectional view of a concrete block cutting machine in the present invention;

[0026] Figure 3 is a sectional view of a concrete block cutting machine in the present invention;

[0027] Figure 4 is a partial exploded view of a concrete block cutting machine in the present invention. Detailed Embodiments

[0028] The following specific implementation content provides various different embodiments or examples for implementing the present invention. Of course, these are only embodiments or examples and are not intended to be restrictive. Additionally, repeated reference numerals may be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the present invention and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0029] Such as Figures 1 to 4A concrete block cutting machine shown in the figure comprises: a frame 1; a working platform, which includes a workbench 2 and a first moving mechanism 3 for driving the workbench 2 to move linearly back and forth; a dust-proof device, which includes a first dust-proof cover 4 movably arranged up and down on the frame 1 and a first lifting mechanism 5 for driving the first dust-proof cover 4 to move up and down, and a second dust-proof cover 6 movably sleeved up and down on the workbench 2 and a second lifting mechanism 7 for driving the second dust-proof cover 6 to move upward. The first dust-proof cover 4 can cover the second dust-proof cover 6, and an annular space 8 with a lower opening is formed between the inner peripheral side of the first dust-proof cover 4 and the outer peripheral side of the second dust-proof cover 6; a cutting device, which includes a frame 9 movably arranged horizontally in the first dust-proof cover 4, a plurality of saw blades 10 arranged horizontally and evenly spaced on the inner side of the frame 9, and a driving mechanism 11 for driving the frame 9 to move horizontally back and forth, and the frame 9 can be accommodated in the second dust-proof cover 6 to move horizontally back and forth; an air extraction device, which includes an air extraction pipe 12 connected to the upper end of the first dust-proof cover 4, and a bag filter (not marked in the figure) connected to one end of the air extraction pipe 12; a spraying device 34, which is distributed along the periphery of the first dust-proof cover 4 for spraying water into the annular space 8.

[0030] Specifically, the bag filter is a relatively mature existing technology, and its structural principle will not be elaborated in detail here. It is equipped with an induced draft fan inside, which can suck and filter dust.

[0031] By the first dust-proof cover descending and the second dust-proof cover ascending to form a nested structure to limit the flow space route of dust, and cooperating with the induced draft fan in the bag filter and the air extraction pipe to suck and remove the dust in the first dust-proof cover. When too much dust overflows from the lower opening of the annular space formed by the combination of the first dust-proof cover and the second dust-proof cover, it can be intercepted by the spraying device to form a dry-wet collaborative dust removal system.

[0032] Moreover, the spraying device does not need to spray water over a large area. Only spraying water into the annular space can achieve dust-proof overflow, reducing the spraying space and effectively reducing the water consumption.

[0033] And when the first dust-proof cover moves downward relative to the second dust-proof cover, as the first dust-proof cover moves downward, the air in the first dust-proof cover will gradually be pressed into the second dust-proof cover, which can accelerate the flow of dust in the second dust-proof cover during cutting, facilitating the air extraction device to suck and remove the dust, and effectively avoiding the problem of dust accumulation caused by insufficient suction at positions far from the air extraction pipe.

[0034] And Figure 2 As shown, the spraying device does not directly spray water into the second dust-proof cover, but only sprays it onto the outer side wall of the second dust-proof cover, which can effectively avoid the sprayed water from spraying on the cut objects on the workbench, resulting in the mixing of water mist and dust to form mud adhering to the concrete blocks, affecting the subsequent process use or requiring additional cleaning processes.

[0035] Through the mutual cooperation among the first dust-proof cover, the second dust-proof cover, the first lifting mechanism, the second lifting mechanism, the air extraction device and the spraying device, the "zero" dust spillage dust removal is initially formed, which has obvious progress compared with the traditional air extraction and spraying dust removal.

[0036] Further, it further includes a cleaning device. The cleaning device includes a moving frame 13 disposed in the first dust-proof cover 4 and above the cutting device, and a second moving mechanism 14 for driving the moving frame 13 to reciprocate. The moving frame 13 has a vertically downward opening vertical guide groove 15. A connecting frame 16 is movably arranged up and down in the vertical guide groove 15. A brush is provided on the lower side of the connecting frame 16. A spring 17 is abutted between the upper end of the vertical guide groove 15 and the upper side of the connecting frame 16.

[0037] Further, the second moving mechanism 14 includes a first screw rod 18 and a first guide shaft 19 respectively disposed in the first dust-proof cover 4. The first screw rod 18 is rotatably arranged on the first dust-proof cover 4 through a bearing. The moving frame 13 is respectively sleeved on the first screw rod 18 and the first guide shaft 19, and the first screw rod 18 is in threaded connection with the moving frame 13. A first motor 20 for driving the first screw rod 18 to rotate is provided outside the first dust-proof cover 4. Specifically, the first motor drives the first screw rod to rotate, so that the moving frame makes a horizontal reciprocating displacement along the axial direction of the first guide shaft.

[0038] Further, the first lifting mechanism 5 includes a second guide shaft 21 and a second screw rod 22 respectively vertically arranged on the machine frame 1. The second screw rod 22 is rotatably arranged on the machine frame 1 through a bearing. The first dust-proof cover 4 is respectively sleeved on the second screw rod 22 and the second guide shaft 21, and the second screw rod 22 is in threaded connection with the first dust-proof cover 4. A second motor 23 for driving the second screw rod 22 to rotate is provided on the machine frame 1. Specifically, the second motor drives the second screw rod to rotate, so that the first dust-proof cover makes a vertical reciprocating displacement along the axial direction of the second guide shaft.

[0039] Further, the second lifting mechanism 7 includes guide blocks 24 symmetrically arranged on both sides of the machine frame 1. The guide blocks 24 have a guide inclined surface 25. Top blocks 26 symmetrically extend from both sides of the second dust-proof cover 6 respectively. A roller or a ball is movably arranged at the lower end of the top block 26. The roller or the ball can move along with the top block 26 and abut against the guide inclined surface 25, so that the second dust-proof cover 6 moves upward relative to the workbench 2.

[0040] Further, the first moving mechanism 3 includes a slide rail 27 arranged on the machine frame 1. The workbench 2 is movably arranged on the slide rail 27 through a slider and moves along the axial direction of the slide rail 27. A hydraulic cylinder (not marked in the figure) for driving the workbench 2 to displace is provided on the machine frame 1.

[0041] Further, the driving mechanism 11 includes a third motor 28 disposed on the frame 1. A driving wheel 29 is provided on the driving shaft of the third motor 28. An eccentric shaft 30 is provided on one side of the driving wheel 29. A driving rod 31 is hinged between the eccentric shaft 30 and the frame 9.

[0042] Further, transverse guide grooves 32 are respectively provided on the two inner sides of the first dust cover 4. Suspension rods 33 are respectively provided on both sides of the frame 9. Rollers 34 are rotatably provided on the suspension rods 33. The rollers 34 are movably arranged in the transverse guide grooves 32 and can axially move along the transverse guide grooves 32.

[0043] Further, the spraying device 34 includes spraying pipes 35 respectively provided on the outer peripheral side of the first dust cover 4. Spray nozzles 36 are arranged at intervals along the axial direction of the spraying pipes 35. The spray nozzles 36 extend to the inner side of the first dust cover 4 and are located in the annular space 8. Specifically, the spraying pipes can be externally connected to a water supply device, and water is pumped into the spraying pipes by the externally connected water supply device and sprayed into the annular space by the spray nozzles.

[0044] The cutting operation process is as follows:

[0045] Initial state: The concrete block blank is hoisted onto the workbench and can be fixed by adding corner codes 99 on the workbench. At this time, the second dust cover hangs down under its own weight, and the first dust cover is at a high position;

[0046] Feeding stage: The hydraulic cylinder in the first moving mechanism pushes the workbench to move forward along the slide rail. At this time, the top block rollers on one side of the second dust cover roll along the guiding inclined surface, forcing the second dust cover to rise relatively until the workbench is displaced directly below the first dust cover. At this time, the second dust cover has completed rising, and the rising height of the second dust cover is less than the height of the concrete block blank;

[0047] Cutting preparation: The first lifting mechanism drives the first dust cover to press down to form a nested seal with the second dust cover;

[0048] Dust removal start: The spraying pipes in the spraying device form an annular water curtain with a water pressure of 0.5 MPa, and the bag filter starts synchronously with an air volume of 1500 m3 / h;

[0049] Cutting operation: The third motor drives the frame to reciprocate horizontally (frequency 2 Hz) through the eccentric wheel. And as the first dust cover is continuously driven by the first lifting mechanism to move down, the saw blade group completes the cutting of the block;

[0050] Self-cleaning stage: The first screw rod drives the moving frame to reciprocate, and the brush in the connecting frame is adaptively pressed against the top surface of the concrete block blank through the spring on the moving frame. The top surface of the concrete block blank is cleaned by the reciprocating horizontal movement of the brush;

[0051] Reset process: After the first dust cover is lifted and reset, the second dust cover automatically descends when the workbench retracts.

[0052] The basic principles, main features and advantages of the present invention have been shown and described above in conjunction with the accompanying drawings. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A concrete block cutting machine, characterized in that, Comprising: A frame (1); A working platform, which includes a workbench (2) and a first moving mechanism (3) for driving the workbench (2) to move linearly back and forth; A dust-proof device, which includes a first dust-proof cover (4) movably arranged up and down on the frame (1) and a first lifting mechanism (5) for driving the first dust-proof cover (4) to move up and down, and a second dust-proof cover (6) movably sleeved up and down on the workbench (2) and a second lifting mechanism (7) for driving the second dust-proof cover (6) to move upward. The first dust-proof cover (4) can cover the second dust-proof cover (6), and an annular space (8) with a lower opening is formed between the inner peripheral side of the first dust-proof cover (4) and the outer peripheral side of the second dust-proof cover (6); A cutting device, which includes a frame (9) movably arranged horizontally in the first dust-proof cover (4), a plurality of saw blades (10) horizontally and evenly spaced on the inner side of the frame (9), and a driving mechanism (11) for driving the frame (9) to reciprocate horizontally. The frame (9) can be accommodated in the second dust-proof cover (6) to move horizontally back and forth; An air extraction device, which includes an air extraction pipe (12) connected to the upper end of the first dust-proof cover (4), and a bag filter connected to one end of the air extraction pipe (12); A spraying device (34), which is distributed along the circumference of the first dust-proof cover (4) for spraying water into the annular space (8).

2. The concrete block cutting machine according to claim 1, characterized in that: It further includes a cleaning device. The cleaning device includes a moving frame (13) arranged in the first dust-proof cover (4) and above the cutting device and a second moving mechanism (14) for driving the moving frame (13) to reciprocate. A vertically downward opening vertical guide groove (15) is formed in the moving frame (13). A connecting frame (16) is movably arranged up and down in the vertical guide groove (15). A brush is provided on the lower side of the connecting frame (16). A spring (17) abuts between the upper end of the vertical guide groove (15) and the upper side of the connecting frame (16).

3. The concrete block cutting machine according to claim 2, wherein: The second moving mechanism (14) includes a first screw rod (18) and a first guide shaft (19) respectively arranged in the first dust-proof cover (4). The first screw rod (18) is rotatably arranged on the first dust-proof cover (4) through a bearing. The moving frame (13) is respectively sleeved on the first screw rod (18) and the first guide shaft (19). The first screw rod (18) is in threaded connection with the moving frame (13). A first motor (20) for driving the first screw rod (18) to rotate is provided on the outer side of the first dust-proof cover (4).

4. A concrete block cutting machine according to claim 1, characterized in that: The first lifting mechanism (5) includes a second guide shaft (21) and a second screw rod (22) respectively arranged vertically on the frame (1). The second screw rod (22) is rotatably arranged on the frame (1) through a bearing. The first dust-proof cover (4) is respectively sleeved on the second screw rod (22) and the second guide shaft (21). The second screw rod (22) is in threaded connection with the first dust-proof cover (4). A second motor (23) for driving the second screw rod (22) to rotate is provided on the frame (1).

5. A concrete block cutting machine according to claim 1, characterized in that: The second lifting mechanism (7) includes guide blocks (24) symmetrically arranged on both sides of the frame (1). The guide blocks (24) have a guide inclined surface (25). On both sides of the second dust cover (6), top blocks (26) symmetrically extend respectively. At the lower end of the top blocks (26), rollers or balls are movably arranged, and the rollers or balls can move along with the top blocks (26) and abut against the guide inclined surface (25), so that the second dust cover (6) is displaced upward relative to the workbench (2).

6. The concrete block cutting machine according to claim 1, characterized in that: The first moving mechanism (3) includes a slide rail (27) arranged on the frame (1). The workbench (2) is movably arranged on the slide rail (27) through a slider and moves along the axial direction of the slide rail (27). A hydraulic cylinder for driving the displacement of the workbench (2) is arranged on the frame (1).

7. A concrete block cutting machine according to claim 1, characterized in that: The driving mechanism (11) includes a third motor (28) arranged on the frame (1). A driving wheel (29) is arranged on the driving shaft of the third motor (28). An eccentric shaft (30) is arranged on one side of the driving wheel (29). A driving rod (31) is hinged between the eccentric shaft (30) and the frame (9).

8. A concrete block cutting machine according to claim 1, characterized in that: On the two inner sides of the first dust cover (4), transverse guide grooves (32) are respectively arranged. On both sides of the frame (9), suspension rods (33) are respectively arranged. Rollers (34) are rotatably arranged on the suspension rods (33), and the rollers (34) are movably arranged in the transverse guide grooves (32) and can move along the axial direction of the transverse guide grooves (32).

9. The concrete block cutting machine according to claim 1, wherein: The spraying device (34) includes spraying pipes (35) respectively arranged on the outer peripheral side of the first dust cover (4). Spraying nozzles (36) are arranged at intervals along the axial direction of the spraying pipes (35). The spraying nozzles (36) extend to the inner side of the first dust cover (4) and are located in the annular space (8).

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