Concrete block cutting device

Abstract

The utility model relates to the technical field of cutting devices, in particular to a concrete block cutting device which comprises a workbench, a cutting assembly is arranged at the bottom of the workbench and comprises a fixed vertical plate installed at the bottom of the workbench through bolts, and a cutting blade is rotationally connected to the position, close to the top, of the right side of the fixed vertical plate through a bearing. A strip-shaped avoiding hole allowing the cutting blade to penetrate through is formed in the top of the workbench, a U-shaped supporting plate is movably connected to the top of the workbench, a first U-shaped avoiding opening used for avoiding the cutting blade is formed in the position, close to the left side, of the bottom of the U-shaped supporting plate, and a pressing assembly used for fixing the position of the concrete block is arranged on the U-shaped supporting plate. According to the concrete block cutting device, through cooperation of the threaded rod, the rectangular push rod and the pressing plate of the pressing assembly, the pressing force can be manually adjusted, reliable fixing of concrete blocks is achieved, shaking or deviation caused by weight reduction of the blocks in the cutting process is avoided, and the cutting precision is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of cutting device technology, specifically a concrete block cutting device. Background Technology

[0002] A concrete block cutting device is a specialized mechanical device used for cutting concrete blocks. Its main purpose is to improve cutting efficiency and precision while ensuring operator safety. This device typically includes several parts, such as cutting blades and a pushing mechanism, enabling efficient and precise cutting of concrete blocks.

[0003] Patent CN210939944U discloses a concrete block cutting device. It employs a left and right push-pull mechanism to move the concrete blocks, eliminating the need for manual pushing by workers. A blade guard effectively prevents the blocks from being touched by the serrated cutting blade during the pushing process, thus protecting worker safety. This invention features a stable worktable composed of a left blocking protrusion, a central cutting notch, a right blocking protrusion, a right horizontal sliding groove, a left horizontal sliding groove, and a worktable surface. The left and right horizontal sliding grooves engage the moving slider and the bottom slider of the right push-pull mechanism, allowing the left and right push-pull mechanisms to move within these grooves. The left and right blocking protrusions further prevent the blade guard from contacting the serrated cutting blade, thus protecting worker safety during concrete block cutting.

[0004] In existing technologies, a movable push-pull device moves concrete blocks toward a serrated cutting blade, allowing the blade to cut the blocks. However, due to the lack of an effective fixing structure during the cutting process, the concrete blocks may vibrate or shift as their weight gradually decreases. This instability directly affects the cutting accuracy of the concrete blocks, leading to reduced cutting quality and unnecessary waste. Therefore, it is necessary to propose a concrete block cutting device to enhance its stability and cutting accuracy, thereby meeting the high requirements for concrete block cutting in modern construction. Utility Model Content

[0005] The purpose of this invention is to provide a concrete block cutting device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A concrete block cutting device includes a worktable for supporting concrete blocks and mounting cutting components, such as... Figure 1As shown, the bottom of the workbench is equipped with a cutting assembly, which is used to drive the cutting blade to perform cutting operations. The cutting assembly includes a fixed vertical plate that is bolted to the bottom of the workbench. The fixed vertical plate is used to fix the rotating shaft of the cutting blade and the motor. The cutting blade is rotatably connected to the right side of the fixed vertical plate near the top via a bearing. The cutting blade is used to directly cut concrete blocks. The top of the workbench is provided with a strip-shaped clearance hole for the cutting blade to pass through. The strip-shaped clearance hole provides a cutting path for the cutting blade and avoids interference.

[0008] like Figure 4 As shown, a U-shaped support plate is movably connected to the top of the workbench. The concrete block to be cut is placed inside the U-shaped support plate, and the position of the concrete block to be cut is aligned with the cutting blade. The U-shaped support plate is used to support the concrete block to be cut and guide its movement. A first U-shaped clearance opening is provided at the bottom of the U-shaped support plate and near the left side to avoid the cutting blade. The first U-shaped clearance opening prevents the U-shaped support plate from colliding with the cutting blade. The U-shaped support plate is provided with a clamping component for fixing the position of the concrete block, fixing the concrete block inside the U-shaped support plate, and preventing the concrete block from shifting during cutting.

[0009] like Figure 5 As shown, the clamping assembly includes a rectangular housing bolted to the center of the front side of the U-shaped support plate. The rear side of the rectangular housing is an open structure. The rectangular housing is used to fix the threaded rod and provide transmission space. The front side of the inner wall of the rectangular housing is rotatably connected to the threaded rod through a bearing. The threaded rod is used to convert rotational motion into linear thrust. The front end of the threaded rod is provided with a handwheel, which facilitates manual adjustment of the clamping force. The outer wall of the threaded rod is threaded with a rectangular push rod. The rectangular push rod slides inside the rectangular housing and is used to transmit the thrust of the threaded rod to the clamping plate. The rear end of the rectangular push rod passes through the front side of the U-shaped support plate and is fixedly connected to the clamping plate. The clamping plate is used to directly clamp the concrete block. The bottom of the clamping plate has a second U-shaped clearance opening to avoid contact between the clamping plate and the cutting blade.

[0010] Preferred, such as Figure 3 As shown, a motor is mounted on the bottom left side of the fixed vertical plate via a mounting base. It is powered by an external power source and provides power to the cutting blade. The output shaft of the motor is coaxially connected to a drive wheel, which is used to transmit power through a transmission belt.

[0011] The left end of the cutting blade shaft is coaxially connected to a driven wheel. The driven wheel is used to receive power from the transmission belt and drive the cutting blade to rotate. The driven wheel is connected to the driving wheel via the transmission belt, which is used to connect the driving wheel and the driven wheel.

[0012] Preferred, combined Figure 1 , Figure 3 and Figure 4 As shown, a trapezoidal limiting groove is provided on the top of the workbench. The trapezoidal limiting groove is used to limit the movement direction of the U-shaped pallet. A trapezoidal slider is provided at the bottom of the U-shaped pallet. The trapezoidal slider is slidably connected in the trapezoidal limiting groove. The trapezoidal slider and the trapezoidal limiting groove cooperate to stabilize the movement trajectory.

[0013] The bottom of the trapezoidal slider has multiple mounting holes, and long bolts are connected to the mounting holes. The threaded end of the long bolts is threaded to the bottom of the U-shaped support plate, which facilitates the assembly of the trapezoidal slider and the U-shaped support plate.

[0014] A push rod is provided on the front side and near the top of the U-shaped tray, which makes it easy for the operator to push the U-shaped tray to move.

[0015] Preferred, such as Figure 5 As shown, the front side of the clamping plate is provided with two positioning rods arranged symmetrically from left to right. The front end of the positioning rod passes through the front side of the inner wall of the U-shaped support plate to the outside. The positioning rod is used to limit the movement direction of the clamping plate to prevent deviation.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This concrete block cutting device, through the cooperation of the threaded rod, rectangular push rod and clamping plate of the clamping component, allows for manual adjustment of the clamping force, achieving reliable fixation of the concrete block and avoiding vibration or displacement caused by the reduction of block weight during the cutting process, thus significantly improving cutting accuracy.

[0018] 2. The design of the U-shaped support plate, trapezoidal slider, and trapezoidal limiting groove in this concrete block cutting device ensures that the U-shaped support plate moves accurately and smoothly. At the same time, the structural design of the strip-shaped clearance hole, the first U-shaped clearance opening, and the second U-shaped clearance opening effectively avoids collisions between the cutting blade and the U-shaped support plate or the clamping plate, reducing equipment wear and operational risks.

[0019] 3. This concrete block cutting device uses a handwheel-driven clamping assembly, which, together with a rectangular push rod, pushes the U-shaped support plate, simplifying the manual operation steps; the positioning longitudinal rod restricts the movement direction of the clamping plate, further ensuring the stability of the clamping process, and is suitable for cutting concrete blocks of different sizes. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of this utility model in use.

[0022] Figure 3This is one of the partial structural schematic diagrams of this utility model;

[0023] Figure 4 This is the second partial structural schematic diagram of the present utility model;

[0024] Figure 5 This is a schematic diagram of the assembly structure of the U-shaped support plate and the clamping assembly in this utility model;

[0025] In the diagram: 1. Workbench; 10. Strip-shaped clearance hole; 11. Trapezoidal limiting through groove; 2. Cutting assembly; 20. Fixed vertical plate; 21. Motor; 22. Drive wheel; 23. Cutting blade; 24. Driven wheel; 25. Transmission belt; 3. U-shaped support plate; 30. First U-shaped clearance opening; 31. Push rod; 32. Trapezoidal slider; 320. Mounting hole; 33. Long bolt; 4. Clamping assembly; 40. Rectangular housing; 41. Threaded rod; 42. Rectangular push rod; 43. Clamping plate; 430. Second U-shaped clearance opening; 44. Handwheel; 45. Positioning longitudinal rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 This utility model provides a technical solution:

[0028] A concrete block cutting device includes a worktable 1, which supports concrete blocks and mounts cutting components 2, such as... Figure 1 As shown, the bottom of the workbench 1 is provided with a cutting assembly 2. The cutting assembly 2 is used to drive the cutting blade 23 to perform cutting operations. The cutting assembly 2 includes a fixed vertical plate 20 that is bolted to the bottom of the workbench 1. The fixed vertical plate 20 is used to fix the rotating shaft of the cutting blade 23 and the motor 21. The cutting blade 23 is rotatably connected to the right side of the fixed vertical plate 20 near the top via a bearing. The cutting blade 23 is used to directly cut concrete blocks. The top of the workbench 1 is provided with a strip-shaped clearance hole 10 for the cutting blade 23 to pass through. The strip-shaped clearance hole 10 provides a cutting path for the cutting blade 23 and avoids interference.

[0029] like Figure 4As shown, a U-shaped support plate 3 is movably connected to the top of the workbench 1. The concrete block to be cut is placed inside the U-shaped support plate 3, and the position of the concrete block to be cut is aligned with the cutting blade 23. The U-shaped support plate 3 is used to support the concrete block to be cut and guide its movement. A first U-shaped clearance opening 30 is provided at the bottom of the U-shaped support plate 3 and near the left side to avoid the cutting blade 23. The first U-shaped clearance opening 30 avoids the collision between the U-shaped support plate 3 and the cutting blade 23. A clamping component 4 is provided on the U-shaped support plate 3 to fix the position of the concrete block, fix the concrete block inside the U-shaped support plate 3, and prevent the concrete block from shifting during cutting.

[0030] like Figure 5 As shown, the clamping assembly 4 includes a rectangular housing 40 bolted to the middle of the front side of the U-shaped support plate 3. The rear side of the rectangular housing 40 is an open structure. The rectangular housing 40 is used to fix the threaded rod 41 and provide transmission space. The threaded rod 41 is rotatably connected to the front side of the inner wall of the rectangular housing 40 through a bearing. The threaded rod 41 is used to convert rotational motion into linear thrust. A handwheel 44 is provided at the front end of the threaded rod 41. The handwheel 44 facilitates manual adjustment of the clamping force. A rectangular push rod 42 is threadedly connected to the outer wall of the threaded rod 41. The rectangular push rod 42 slides inside the rectangular housing 40. The rectangular push rod 42 is used to transmit the thrust of the threaded rod 41 to the clamping plate 43. The rear end of the rectangular push rod 42 passes through the front side of the U-shaped support plate 3 and is fixedly connected to the clamping plate 43. The clamping plate 43 is used to directly clamp the concrete block. A second U-shaped clearance opening 430 is provided at the bottom of the clamping plate 43 to avoid the cutting blade 23. The second U-shaped clearance opening 430 prevents the clamping plate 43 from contacting the cutting blade 23.

[0031] In this embodiment, as Figure 3 As shown, a motor 21 is mounted on the bottom left side of the fixed vertical plate 20 via a mounting base. It is powered by an external power source and provides power to the cutting blade 23. The output shaft of the motor 21 is coaxially connected to a drive wheel 22, which is used to transmit power through a transmission belt 25.

[0032] The left end of the shaft of the cutting blade 23 is coaxially connected to a driven wheel 24. The driven wheel 24 is used to receive the power of the transmission belt 25 and drive the cutting blade 23 to rotate. The driven wheel 24 is connected to the driving wheel 22 through the transmission belt 25. The transmission belt 25 is used to connect the driving wheel 22 and the driven wheel 24.

[0033] Specifically, in combination Figure 1 , Figure 3 and Figure 4As shown, a trapezoidal limiting groove 11 is provided on the top of the workbench 1. The trapezoidal limiting groove 11 is used to limit the movement direction of the U-shaped pallet 3. A trapezoidal slider 32 is provided at the bottom of the U-shaped pallet 3. The trapezoidal slider 32 is slidably connected in the trapezoidal limiting groove 11. The trapezoidal slider 32 cooperates with the trapezoidal limiting groove 11 to stabilize the movement trajectory.

[0034] The bottom of the trapezoidal slider 32 is provided with multiple mounting holes 320, and long bolts 33 are connected to the mounting holes 320. The threaded end of the long bolts 33 is threaded to the bottom of the U-shaped support plate 3, which facilitates the assembly of the trapezoidal slider 32 and the U-shaped support plate 3.

[0035] A push rod 31 is provided on the front side and near the top of the U-shaped tray 3, which makes it easy for the operator to push the U-shaped tray 3 to move.

[0036] Furthermore, such as Figure 5 As shown, the front side of the clamping plate 43 is provided with two positioning rods 45 arranged symmetrically on the left and right. The front end of the positioning rod 45 passes through the front side of the inner wall of the U-shaped support plate 3 to the outside. The positioning rods 45 are used to limit the movement direction of the clamping plate 43 to prevent displacement.

[0037] In this embodiment, when using the concrete block cutting device, the operator first places the concrete block to be cut into the U-shaped support plate 3, and pushes the U-shaped support plate 3 along the trapezoidal limiting groove 11 on the top of the workbench 1 by the push rod 31, so that the trapezoidal slider 32 slides in the trapezoidal limiting groove 11, and adjusts the position of the concrete block until the position of the concrete block to be cut is aligned with the cutting blade 23; then, the handwheel 44 is turned to drive the threaded rod 41 to rotate, which drives the rectangular push rod 42 to move in the rectangular housing 40, so that the clamping plate 43 clamps the concrete block in a straight line through the positioning longitudinal rod 45; after starting the motor 21, the driving wheel 22 drives the driven wheel 24 and the cutting blade 23 to rotate at high speed through the transmission belt 25, and pushes the U-shaped support plate 3 to move backward by the push rod 31, and the cutting blade 23 cuts the concrete block; after the cutting is completed, the handwheel 44 is turned in the opposite direction to release the clamping plate 43 and take out the cut concrete block.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A concrete block cutting device comprising a worktable (1), characterized in that: The bottom of the workbench (1) is provided with a cutting assembly (2). The cutting assembly (2) includes a fixed vertical plate (20) that is bolted to the bottom of the workbench (1). A cutting blade (23) is rotatably connected to the right side of the fixed vertical plate (20) near the top via a bearing. A strip-shaped clearance hole (10) for the cutting blade (23) to pass through is provided on the top of the workbench (1). A U-shaped support plate (3) is movably connected to the top of the workbench (1). A first U-shaped clearance opening (30) for avoiding the cutting blade (23) is provided at the bottom and near the left side of the U-shaped support plate (3). The U-shaped support plate (3) is provided with a... The clamping assembly (4) for fixing the concrete block position includes a rectangular housing (40) that is bolted to the middle of the front side of the U-shaped support plate (3). The front side of the inner wall of the rectangular housing (40) is rotatably connected to a threaded rod (41) via a bearing. The front end of the threaded rod (41) is provided with a handwheel (44). The outer wall of the threaded rod (41) is threaded with a rectangular push rod (42). The rear end of the rectangular push rod (42) passes through the front side of the U-shaped support plate (3) and is fixedly connected to a clamping plate (43). The bottom of the clamping plate (43) is provided with a second U-shaped clearance opening (430) for avoiding the cutting blade (23).

2. The concrete block cutting apparatus of claim 1, wherein: The bottom left side of the fixed vertical plate (20) is equipped with a motor (21) via a mounting base, and the output shaft of the motor (21) is coaxially connected to a drive wheel (22).

3. The concrete block cutting apparatus of claim 2, wherein: The left end of the shaft of the cutting blade (23) is coaxially connected to a driven wheel (24), which is connected to the driving wheel (22) via a transmission belt (25).

4. The concrete block cutting apparatus of claim 1, wherein: The top of the workbench (1) is provided with a trapezoidal limiting groove (11), and the bottom of the U-shaped support plate (3) is provided with a trapezoidal slider (32), which is slidably connected in the trapezoidal limiting groove (11).

5. The concrete block cutting apparatus of claim 4, wherein: The bottom of the trapezoidal slider (32) is provided with multiple mounting holes (320), and the mounting holes (320) are connected to long bolts (33). The threaded end of the long bolts (33) is threaded to the bottom of the U-shaped support plate (3).

6. The concrete block cutting apparatus of claim 1, wherein: A push rod (31) is provided on the front side and near the top of the U-shaped tray (3).

7. The concrete block cutting apparatus of claim 1, wherein: The front side of the clamping plate (43) is provided with two positioning rods (45) arranged symmetrically on the left and right. The front end of the positioning rods (45) passes through the front side of the inner wall of the U-shaped support plate (3) to the outside.

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