Slotting equipment for reinforced concrete prefabricated frame wallboard

By combining the saw blade with the rotating rod, the cutting length of the saw blade is controlled by the conveyor belt and the extrusion block, and the speed of the mounting plate is adjusted by the limit block and the limit groove. This solves the problems of saw blade wear and safety hazards in traditional grooving machines, and achieves precise and safe grooving results.

CN121589927APending Publication Date: 2026-03-03YANTAI DAMING PHOTOELECTRIC ENG CO LTD
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Patent Information

Application Number
CN202610109970.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-27
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

When cutting wall panels, traditional grooving machines are prone to excessively long grooves and increased wear due to delays in human reaction, and also pose safety hazards to workers.

Method used

The design employs a saw blade and rotating rod, with the cutting length of the saw blade controlled by a conveyor belt and an extrusion block. The extension speed of the mounting plate is adjusted by a limit block and a limit groove, ensuring grooving accuracy and safety.

Benefits of technology

This technology enables the saw blade to automatically retract from the wall panel after a specified length, reducing wear and improving grooving accuracy and safety, while avoiding the risks of excessive grooving length and worker injury.

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Abstract

The invention relates to the technical field of building construction, and discloses reinforced concrete prefabricated frame wallboard grooving equipment which comprises a machine body, the machine body is provided with a plurality of uniformly arranged saw blades, the bottom of the machine body is fixedly connected with a mounting plate, the bottom of the mounting plate is sleeved with a sleeve plate in sliding connection, and the bottom of the sleeve plate is fixedly connected with a positioning plate. A partition plate is fixedly connected into the sleeve plate, a plurality of electric push rods are fixedly connected between the top of the partition plate and the bottom of the mounting plate, a control button is fixedly connected to the bottom of the partition plate, a fixing frame A and a fixing frame B are fixedly connected to the two sides of the top of the positioning plate correspondingly, and a conveying belt is wound between the fixing frame A and the fixing frame B through a rotating shaft. According to the grooving equipment for the reinforced concrete prefabricated frame wallboard, the problems that when a traditional device is used for manual cutting, a worker has certain reaction time, so that a saw blade still rotates in a wall body, and the grooving length of the wallboard is too long can be solved.
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Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a grooving device for precast reinforced concrete frame wall panels. Background Technology

[0002] There are two main components in prefabricated buildings: prefabricated frames and prefabricated wall panels, and the building system they form. Prefabricated frames refer to load-bearing components such as beams and columns that are prefabricated in a factory and then transported to the construction site to be assembled into the building's skeleton using reliable connection methods. Prefabricated wall panels refer to large wall panels that are prefabricated in a factory, including load-bearing and non-load-bearing wall panels. The prefabricated frame and wall panel system combines these two, with the prefabricated frame serving as the load-bearing skeleton and the prefabricated wall panels serving as the enclosure and partition system. This is a very typical and widely used form of prefabricated building. Because after the precast wall panels are manufactured, grooves or pipe grooves need to be pre-cut on the inner surface of the precast wall panels to provide installation space for electrical conduits, water pipes and ventilation pipes in the building, a special grooving machine is required at this time. A grooving machine is a tool specially used to groove wall panels. It consists of two or more saw blades and a grooving depth positioning mechanism. The two or more saw blades cut the wall into grooves, and the grooving depth positioning mechanism positions and limits the depth of the grooves in the wall, thereby completing the grooving work of the wall. In the use of traditional grooving machines, after grooving the wall to the specified length, there is a certain reaction time when cutting manually, which causes the saw blade to continue rotating inside the wall. This not only easily leads to excessively long grooves, but also increases the wear of the saw blade. To address this, we propose a grooving device for precast reinforced concrete frame wall panels. Summary of the Invention

[0003] The purpose of this invention is to provide a grooving device for precast reinforced concrete frame wall panels to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a grooving device for precast reinforced concrete frame wall panels, comprising a machine body, wherein the machine body is provided with a plurality of evenly arranged saw blades, an installation plate is fixedly connected to the bottom of the machine body, a slidingly connected sleeve plate is sleeved on the bottom of the installation plate, a positioning plate is fixedly connected to the bottom of the sleeve plate, and a working opening is provided on the positioning plate, the working opening being located below the saw blades. A partition is fixedly connected inside the sleeve plate. Several electric push rods are fixedly connected between the top of the partition plate and the bottom of the mounting plate. A control button is fixedly connected to the bottom of the partition plate. Interconnected holes are provided on both sides of the sleeve plate. The top two sides of the positioning plate are respectively fixedly connected to a fixed frame A and a fixed frame B. Both fixed frames A and B are provided with rotating shafts that are rotatably connected. A conveyor belt is provided between fixed frames A and fixed frames B. The two ends of the conveyor belt are respectively wound on the rotating shafts of fixed frames A and fixed frames B. The conveyor belt passes through two connecting holes. An extrusion block is fixedly connected to the top of the conveyor belt.

[0005] Preferably, a limiting frame is rotatably connected to the side of the sleeve away from the saw blade, and a damping rod is rotatably connected to the limiting frame. The surface of the damping rod is provided with a plurality of evenly distributed buffer grooves, and one end of the damping rod is fixedly connected to a limiting rod. The surface of the limiting rod is provided with a plurality of evenly distributed trapezoidal limiting grooves.

[0006] Preferably, a plurality of evenly distributed limiting strips are fixedly connected to the side of the mounting plate near the limiting frame, the interval between each limiting strip is the same as the interval between each buffer groove, and the limiting strips and the corresponding buffer grooves are interlocked.

[0007] Preferably, mounting holes are provided on both sides of the limiting frame, and both ends of the damping rod are located in the mounting holes on the same side. The inner wall of the mounting hole on the side of the limiting frame near the limiting rod is provided with a mounting groove. A trapezoidal limiting block is slidably connected in the mounting groove. The limiting block and its adjacent limiting groove are interlocked. A spring is fixedly connected between the limiting block and the inner wall of the mounting groove.

[0008] Preferably, rotating rods are rotatably connected to both sides of the bottom of the positioning plate, and a mounting cover A is connected through and fixedly to the side of the positioning plate near the fixed frame A. Pulleys A are rotatably connected to both ends inside the mounting cover A. The bottom pulley A inside the mounting cover A is fixedly connected to the rotating rod on the same side, and a transmission belt A is provided between the two pulleys A.

[0009] Preferably, a mounting bracket is fixedly connected to the top of the positioning plate, and a mounting cover B is fixedly connected to the mounting bracket. Both ends of the mounting cover B are rotatably connected to pulleys B, and a transmission belt B is provided between the pulleys B.

[0010] Preferably, the mounting cover B is located between the fixing frame A and the mounting cover A, and the pulley B inside the mounting cover B near the end of the mounting cover A is fixedly connected to the pulley A located at the top of the mounting cover A, and the pulley B at the end of the mounting cover B near the fixing frame A is fixedly connected to the rotating shaft of the fixing frame A.

[0011] Preferably, a ventilation pipe is fixedly connected to the top of the positioning plate, and the ventilation pipe is provided with several air vents, each of which is aligned with the gap between the corresponding saw blades.

[0012] Preferably, a water inlet pipe is provided on one side of the machine body, the water inlet pipe is located above the saw blade, and a drive motor for driving the saw blade to rotate is provided inside the machine body.

[0013] Preferably, a knob is rotatably connected to the fixed frame B, and the knob is fixedly connected to the rotating shaft of the fixed frame B. Inclined surfaces are provided on both sides of the top of the extrusion block.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses a rotating rod that fits into the wall panel. During the grooving process, as the machine moves along the wall panel, the rotating rod rotates along the wall panel. During this rotation, the rotating shaft on the fixed frame A rotates synchronously through the cooperation of pulley A, transmission belt A, pulley B, and transmission belt B, which in turn moves the conveyor belt. When the grooving reaches the specified length, the pressing block on the conveyor belt presses the control button, thereby controlling the extension of the electric push rod and pushing the mounting plate out of the sleeve plate. This allows the machine to move the saw blade away from the wall panel until the saw blade separates from the wall panel. This avoids the problem of excessive grooving length caused by workers having a reaction time during manual cutting in traditional devices, which results in the saw blade still rotating inside the wall. At the same time, since the electric push rod can immediately move the saw blade out of the wall panel after the specified grooving length is completed, it can effectively reduce the problem of excessive wear on the saw blade caused by prolonged rotation inside the wall panel. 2. This invention, through the cooperation of the trapezoidal limiting block and limiting groove, and the cooperation between the upper limit strip on the mounting plate and the buffer groove on the damping rod, can change the direction of pressure when the mounting plate extends out of the sleeve plate by utilizing the inclined surfaces of the limiting block and limiting groove, so that the limiting block applies pressure to the spring, thereby causing the limiting block to retract into the mounting groove. In addition, the friction between the limiting strip and the damping rod reduces the speed at which the mounting plate extends out of the sleeve plate, making the mounting plate extend out of the sleeve plate more smoothly. This avoids the problem that the electric push rod extends too fast, making it difficult for workers to control the machine and easily causing injury to workers. 3. By setting up fixed frames A and B respectively, the grooving length is determined during the grooving process. Then, by rotating the knob, the shaft on fixed frame B is rotated, and the conveyor belt is wound up, thereby moving the extrusion block away from the control button. When the conveyor belt section between the extrusion block and the control button is the same as the grooving length, the grooving work can be carried out. This ensures that after the rotating rod rotates along the wall panel to the specified length, the extrusion block is precisely pressed against the control button, effectively improving the auxiliary function of the device in wall panel grooving. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the bottom structure of the present invention; Figure 3This is a schematic diagram of the positioning plate structure of the present invention; Figure 4 This is a schematic cross-sectional view of mounting cover A and mounting cover B of the present invention; Figure 5 This is a schematic diagram of the internal structure of the conveyor belt and the sleeve plate of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of the sleeve plate of the present invention; Figure 7 This is a schematic diagram of the damping rod structure of the present invention; Figure 8 This is a schematic diagram of the limiting rod structure of the present invention; Figure 9 This is a partial cross-sectional structural diagram of the limiting frame of the present invention; Figure 10 For the present invention Figure 9 A magnified structural diagram of area A is shown below; Figure 11 This is a schematic diagram of the cross-sectional structure of the limiting rod of the present invention.

[0016] In the diagram: 1. Machine body; 11. Saw blade; 12. Water inlet pipe; 2. Mounting plate; 21. Sleeve plate; 22. Partition plate; 23. Electric push rod; 24. Control button; 25. Connecting hole; 26. Limiting strip; 3. Positioning plate; 31. Working port; 32. Ventilation pipe; 4. Fixing frame A; 41. Fixing frame B; 42. Conveyor belt; 43. Extrusion block; 44. Knob; 5. Rotating rod; 51. Mounting cover A; 52. Pulley A; 53. Drive belt A; 54. Mounting frame; 55. Mounting cover B; 56. Pulley B; 57. Drive belt B; 6. Limiting frame; 61. Mounting groove; 62. Limiting block; 63. Spring; 7. Damping rod; 71. Buffer groove; 72. Limiting rod; 73. Limiting groove. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-11This invention provides a technical solution: a grooving device for precast reinforced concrete frame wall panels, comprising a body 1, wherein the body 1 is provided with a plurality of evenly arranged saw blades 11, an installation plate 2 is fixedly connected to the bottom of the body 1, a slidingly connected sleeve plate 21 is sleeved on the bottom of the installation plate 2, a positioning plate 3 is fixedly connected to the bottom of the sleeve plate 21, a working opening 31 is opened on the positioning plate 3, the working opening 31 is located below the saw blades 11, a partition plate 22 is fixedly connected inside the sleeve plate 21, a plurality of electric push rods 23 are fixedly connected between the top of the partition plate 22 and the bottom of the installation plate 2, a water receiving pipe 12 is provided on one side of the body 1, the water receiving pipe 12 is located above the saw blades 11, a drive motor for driving the saw blades 11 to rotate is provided inside the body 1, a ventilation pipe 32 is fixedly connected to the top of the positioning plate 3, the ventilation pipe 32 is provided with a plurality of air vents, each air vent of the ventilation pipe 32 is respectively aligned with the gap between the corresponding saw blades 11.

[0019] Furthermore, when cutting and grooving the precast wall panels, the worker first connects the external water pipe and external fan to the water pipe 12 and ventilation pipe 32 respectively. Then, holding the handle on the machine body 1, which has multiple buttons, controls the drive motor and electric push rod 23 within the machine body 1. During grooving, the grooving depth is first determined. The position of the positioning plate 3 is controlled by adjusting the extension length of the electric push rod 23. Then, the drive motor inside the machine body 1 is turned on, causing the saw blade 11 to rotate at high speed. The saw blade 11 is then placed against the wall, and the wall is cut and grooved. When the positioning plate 3 is attached to the wall… Subsequently, due to the limiting effect of the positioning plate 3, the saw blade 11 can no longer penetrate deeper into the wall. At this time, by moving the machine body 1 along the wall surface, its direction of movement must be the same as the direction of the saw blade 11. During the movement of the machine body 1, the saw blade 11 can cut and groove the wall panel along the movement path. During the grooving process, water can be sprayed on the surface of the saw blade 11 through the external water source and water pipe 12 to reduce the friction between the saw blade 11 and the wall panel, and at the same time reduce the dust generated during the grooving process. Through the external fan and ventilation pipe 32, the dust generated during grooving is absorbed, further reducing the pollution of the working environment by dust.

[0020] Combined with appendix Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, a control button 24 is fixedly connected to the bottom of the partition 22. Both sides of the sleeve 21 have interconnecting holes 25. A fixing frame A4 and a fixing frame B41 are fixedly connected to the top of the positioning plate 3, respectively. A rotating shaft is rotatably connected to both fixing frame A4 and fixing frame B41. A conveyor belt 42 is positioned between fixing frame A4 and fixing frame B41. The two ends of the conveyor belt 42 are wound onto the rotating shafts of fixing frame A4 and fixing frame B41, respectively. The conveyor belt 42 passes through the two interconnecting holes 25. A pressing block 43 is fixedly connected to the top of the conveyor belt 42. A knob 44 is rotatably connected to the fixing frame B41, and the knob 44 is fixedly connected to the rotating shaft of the fixing frame B41. Inclined surfaces are provided on both sides of the top of the pressing block 43. A rotating rod 5 is rotatably connected to both sides of the bottom of the positioning plate 3. A mounting rod is fixedly connected to the side of the positioning plate 3 closest to the fixing frame A4. Mounting cover A51 has pulleys A52 rotatably connected to both ends inside. The pulleys A52 are rotatably connected to the inner wall of mounting cover A51 via bearings. The pulley A52 at the bottom of mounting cover A51 is fixedly connected to the rotating rod 5 on the same side. A transmission belt A53 is provided between the two pulleys A52. A mounting frame 54 is fixedly connected to the top of positioning plate 3. Mounting cover B55 is fixedly connected to the mounting frame 54. The pulleys B56 at both ends of mounting cover B55 are rotatably connected. A transmission belt B57 is provided between the pulleys B56. Mounting cover B55 is located between fixing frame A4 and mounting cover A51. The pulley B56 at the end of mounting cover B55 near mounting cover A51 is fixedly connected to the pulley A52 at the top of mounting cover A51. The pulley B56 at the end of mounting cover B55 near fixing frame A4 is fixedly connected to the rotating shaft of fixing frame A4.

[0021] Furthermore, during the grooving process, the grooving length is determined. Then, knob 44 is rotated to cause the shaft on the fixed frame B41 to wind up the conveyor belt 42, thereby adjusting the distance between the extrusion block 43 on the conveyor belt 42 and the control button 24. During the grooving process, the rotating rod 5 is brought into contact with the wall panel. As the machine body 1 moves, friction occurs between the rotating rod 5 and the wall panel, causing the rotating rod 5 to rotate. During this rotation, the rotating rod 5 drives the mating pulley A52 to rotate. This, in turn, drives another pulley A52 to rotate via the transmission belt A53. Through the cooperation of the two pulleys B56 and the transmission belt B57, the shaft on the fixed frame A4 rotates, winding up the conveyor belt 42. During the winding of the conveyor belt 42 by the fixed frame A4, the extrusion block 43 moves towards the control button 24 along with the conveyor belt 42. When the grooving reaches the specified length, the extrusion block 43 moves below the control button 24 and extrudes the control button 24, thereby controlling the extension of the electric push rod 23. During the extension of the electric push rod 23, a thrust is generated. Since the positioning plate 3 contacts the wall panel through the rotating rod 5, the wall panel provides a limiting force to the positioning plate 3. Therefore, the electric push rod 23 pushes the machine body 1 and increases the distance between the machine body 1 and the positioning plate 3. During this process, the saw blade 11 moves with the machine body 1 and disengages from the groove in the wall panel, thus completing the grooving work.

[0022] Combined with appendix Figure 3 , Figure 7 , Figure 8 , Figure 9 , Figure 10 and Figure 11As shown, a limiting frame 6 is rotatably connected to the side of the sleeve plate 21 away from the saw blade 11. A damping rod 7 is rotatably connected to the limiting frame 6. The surface of the damping rod 7 is provided with several evenly distributed buffer grooves 71. One end of the damping rod 7 is fixedly connected to a limiting rod 72. The surface of the limiting rod 72 is provided with several evenly distributed trapezoidal limiting grooves 73. Several evenly distributed limiting strips 26 are fixedly connected to the side of the mounting plate 2 near the limiting frame 6. The interval between each limiting strip 26 is the same as the interval between each buffer groove 71. The limiting strips 26 and the corresponding buffer grooves 71 are interlocked. A torsion spring is provided at the rotation axis of the limiting frame 6. Under normal conditions, the spring ensures that the damping rod 7 remains in contact with the mounting plate 2. When the limit frame 6 is manually rotated, the torsion spring tightens. When the limit frame 6 is released again, the torsion spring rebounds, causing the limit frame 6 to reset and the damping rod 7 to re-engage with the mounting plate 2. Mounting holes are provided on both sides of the limit frame 6, and both ends of the damping rod 7 are located in the mounting holes on the same side. The inner wall of the mounting hole on the side of the limit frame 6 closest to the limit rod 72 has a mounting groove 61. A trapezoidal limit block 62 is slidably connected in the mounting groove 61. The limit block 62 and its adjacent limit groove 73 are interlocked. A spring 63 is fixedly connected between the limit block 62 and the inner wall of the mounting groove 61.

[0023] Furthermore, both the trapezoidal limiting block 62 and the limiting groove 73 are provided with inclined surfaces. During the extension of the electric push rod 23, it pushes the mounting plate 2 out of the sleeve 21. During this process, the mounting plate 2, through the limiting strip 26 on its surface, engages with the buffer groove 71 of the damping rod 7, causing the damping rod 7 to rotate. During the rotation of the damping rod 7, friction occurs between the buffer groove 71 and the limiting strip 26. This process increases the damping of the mounting plate 2 when it extends out of the sleeve 21, reducing the damping force of the mounting plate 2. As the damping rod 7 rotates, the limiting rod 72, which is fixedly connected to it, also rotates synchronously. At this time, the inclined surface of the limiting groove 73 and the inclined surface of the limiting block 62 come into contact and press against each other, thereby changing the direction of pressure and causing the limiting block 62 to retract into the mounting groove 61, thus compressing the spring 63. At this time, the limiting rod 72 will continue to rotate. When the next limiting groove 73 rotates to the limiting block 62, the spring 63 will rebound, causing the limiting block 62 to lock into the limiting groove 73, and as the damping rod 72 rotates, the limiting rod 72 will continue to rotate. The rotation of the damping rod 7 and the repeated contraction and extension of the limiting block 62 enhance the damping performance of the damping rod 7 during rotation, reduce its rotation speed, and control the extension speed of the mounting plate 2 by controlling the rotation speed of the damping rod 7. This further improves the damping performance of the mounting plate 2 during extension, ensuring a stable extension speed and preventing the electric push rod 23 from extending too quickly, which could make it difficult for workers to control the machine body 1 and potentially cause injury to workers from the saw blade 11. Furthermore, since the other side of the trapezoidal limiting block 62 and the limiting groove 73 are both flat, during grooving, the rotating rod 5 on the positioning plate 3 adheres to the wall panel surface. During grooving, the worker applies pressure to the machine body 1 to increase the tightness of the fit between the rotating rod 5 and the wall panel. The mutual limiting by the two trapezoidal limiting blocks 62 and the limiting groove 73 prevents excessive pressure from causing contraction between the mounting plate 2 and the sleeve plate 21, resulting in an excessively deep groove.

[0024] Working principle: First, connect the external water pipe to the water inlet pipe 12 and the external fan to the ventilation pipe 32. Then, control the extension and retraction length of the electric push rod 23 through the button on the machine body 1. If it is necessary to retract the electric push rod 23, the limit frame 6 must be rotated first to separate the damping rod 7 from the mounting plate 2, so that the electric push rod 23 can retract and drive the mounting plate 2 to retract into the sleeve plate 21. Adjust the position of the positioning plate 3 by the extension and retraction length of the electric push rod 23. The length of the saw blade 11 extending from the working opening 31 of the positioning plate 3 is the depth of the groove. Then, preset the groove length. Based on the required groove length of the wall panel, turn the knob 44 to wind up the conveyor belt 42 through the rotating shaft on the fixed frame B41. Adjust the initial distance between the extrusion block 43 and the control button 24 to ensure that the distance is equal to the amount of movement of the conveyor belt 42 corresponding to the target groove length. Then, holding the handle of the machine body 1, start the drive motor to drive the saw blade 11 to rotate at high speed. The rotating saw blade 11 is in contact with the surface of the precast wall panel to be slotted. At the same time, ensure that the rotating rod 5 at the bottom of the positioning plate 3 is in close contact with the wall panel. The positioning plate 3 limits the saw blade 11 to prevent it from cutting too deeply. At this time, the saw blade 11 can only cut horizontally on the surface of the wall panel and cannot cut vertically downwards, thus avoiding the problem of excessive groove depth. The rotating rod 5 is used as a detection trigger component to detect the groove length. During the grooving process, water from an external water source is sprayed onto the saw blade 11 through the water inlet pipe 12. This effectively reduces the amount of dust generated during grooving while cooling the saw blade 11. The external fan and ventilation pipe 32 work together to absorb the dust generated during grooving, thus optimizing the working environment. When grooving the wall panel, the machine body 1 is pushed to move horizontally along the wall panel. The rotating rod 5 moves with the body 1 and generates friction with the wall panel and begins to rotate. The rotation of the rotating rod 5 is transmitted through the pulley A52 at one end, and through the transmission belt A53, it drives the pulley A52 on the other side to rotate synchronously. The pulley A52 on this side, through the cooperation of the pulley B56 and the transmission belt B57, finally drives the rotating shaft on the fixed frame A4 to rotate. When the rotating shaft of the fixed frame A4 rotates, the winding conveyor belt 42 causes the conveyor belt 42 to drive the extrusion block 43 to move towards the control button 24. When the groove length reaches the preset value, the moving extrusion block 43 touches the control button 24. After the control button 24 is pressed, it triggers a circuit signal, which controls the electric push rod 23 to start the extension action. When the electric push rod 23 extends, it pushes the mounting plate 2 out of the sleeve plate 21, thereby driving the machine body 1 and the saw blade 11 on it away from the wall panel until the saw blade 11 is completely separated from the cut groove, and the cutting action is terminated. When the electric push rod 23 pushes the mounting plate 2 out of the sleeve plate 21, the limiting strip 26 on the side of the mounting plate 2 engages with the buffer groove 71 on the surface of the damping rod 7. The friction between the limiting strip 26 and the buffer groove 71 generates a damping force, reducing the extension speed of the mounting plate 2. At the same time, when the damping rod 7 rotates, the limiting rod 72 at one end also rotates synchronously. The trapezoidal limiting groove 73 on the surface of the limiting rod 72 contacts the trapezoidal limiting block 62 in the mounting groove 61 of the limiting frame 6. Initially, the limiting block 62 is inserted into the limiting groove 73. As the damping rod 7 rotates, the inclined surface of the limiting groove 73 presses against the inclined surface of the limiting block 62, thus reducing the extension speed of the mounting plate 2. The direction of the force can be changed, so that the limiting block 62 compresses the spring 63, causing the spring 63 to contract and the limiting block 62 to retract into the mounting groove 61. At this time, the limiting rod 72 will continue to rotate. When the next limiting groove 73 rotates to the limiting block 62, the spring 63 will rebound, causing the limiting block 62 to be locked into the limiting groove 73. With the rotation of the damping rod 7, the periodic locking and popping action of the limiting block 62 further increases the resistance to the rotation of the damping rod 7, thereby optimizing the extension speed of the mounting plate 2 and avoiding the problem of the body 1 going out of control or the sudden change in the groove depth caused by the rapid extension of the electric push rod 23. After completing a single grooving operation, rotate the knob 44 in the opposite direction to rewind the conveyor belt 42, move the extrusion block 43 away from the control button 24, restore the initial state, and adjust the electric push rod 23 to retract, so that the next grooving operation can be carried out. This can achieve continuous and precise grooving operation.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grooving device for precast reinforced concrete frame wall panels, characterized in that: Includes a machine body (1), which is provided with a plurality of evenly arranged saw blades (11). A mounting plate (2) is fixedly connected to the bottom of the machine body (1). A sliding sleeve plate (21) is fitted on the bottom of the mounting plate (2). A positioning plate (3) is fixedly connected to the bottom of the sleeve plate (21). A working opening (31) is opened on the positioning plate (3). The working opening (31) is located below the saw blades (11). A partition (22) is fixedly connected inside the sleeve (21). Several electric push rods (23) are fixedly connected between the top of the partition (22) and the bottom of the mounting plate (2). A control button (24) is fixedly connected to the bottom of the partition (22). Both sides of the sleeve (21) are provided with interconnecting holes (25). The top two sides of the positioning plate (3) are fixedly connected to a fixed frame A (4) and a fixed frame B (41), respectively. Both the fixed frame A (4) and the fixed frame B (41) are provided with rotating shafts that are rotatably connected. A conveyor belt (42) is provided between the fixed frame A (4) and the fixed frame B (41). The two ends of the conveyor belt (42) are respectively wound on the rotating shafts of the fixed frame A (4) and the fixed frame B (41). The conveyor belt (42) passes through two connecting holes (25). An extrusion block (43) is fixedly connected to the top of the conveyor belt (42).

2. The grooving equipment for precast reinforced concrete frame wall panels according to claim 1, characterized in that: The sleeve plate (21) is rotatably connected to a limiting frame (6) on the side away from the saw blade (11). A damping rod (7) is rotatably connected to the limiting frame (6). The surface of the damping rod (7) is provided with several evenly distributed buffer grooves (71). One end of the damping rod (7) is fixedly connected to a limiting rod (72). The surface of the limiting rod (72) is provided with several evenly distributed trapezoidal limiting grooves (73).

3. The grooving equipment for precast reinforced concrete frame wall panels according to claim 2, characterized in that: The mounting plate (2) has several evenly distributed limiting strips (26) fixedly connected to one side near the limiting frame (6). The interval between each limiting strip (26) is the same as the interval between each buffer groove (71). The limiting strips (26) and the corresponding buffer grooves (71) are interlocked.

4. The grooving equipment for precast reinforced concrete frame wall panels according to claim 2, characterized in that: The limiting frame (6) has mounting holes on both sides, and both ends of the damping rod (7) are located in the mounting holes on the same side. The inner wall of the mounting hole on the side of the limiting frame (6) near the limiting rod (72) has a mounting groove (61). A trapezoidal limiting block (62) is slidably connected in the mounting groove (61). The limiting block (62) and its adjacent limiting groove (73) are fitted together. A spring (63) is fixedly connected between the limiting block (62) and the inner wall of the mounting groove (61).

5. The grooving equipment for precast reinforced concrete frame wall panels according to claim 1, characterized in that: The bottom sides of the positioning plate (3) are rotatably connected to rotating rods (5). The side of the positioning plate (3) near the fixed frame A (4) is connected to a mounting cover A (51). Both ends of the mounting cover A (51) are rotatably connected to pulleys A (52). The pulley A (52) at the bottom of the mounting cover A (51) is fixedly connected to the rotating rod (5) on the same side. A transmission belt A (53) is provided between the two pulleys A (52).

6. The grooving equipment for precast reinforced concrete frame wall panels according to claim 5, characterized in that: The top of the positioning plate (3) is fixedly connected to a mounting bracket (54), and a mounting cover B (55) is fixedly connected to the mounting bracket (54). Both ends of the mounting cover B (55) are rotatably connected to pulleys B (56), and a transmission belt B (57) is provided between the pulleys B (56).

7. The grooving equipment for precast reinforced concrete frame wall panels according to claim 6, characterized in that: The mounting cover B (55) is located between the fixing frame A (4) and the mounting cover A (51). The pulley B (56) inside the mounting cover B (55) near the end of the mounting cover A (51) is fixedly connected to the pulley A (52) at the top of the mounting cover A (51). The pulley B (56) of the mounting cover B (55) near the end of the fixing frame A (4) is fixedly connected to the rotating shaft of the fixing frame A (4).

8. The grooving equipment for precast reinforced concrete frame wall panels according to claim 1, characterized in that: The top of the positioning plate (3) is fixedly connected to a ventilation pipe (32), and the ventilation pipe (32) is provided with several air outlets. Each air outlet of the ventilation pipe (32) is aligned with the gap between the corresponding saw blades (11).

9. The grooving equipment for precast reinforced concrete frame wall panels according to claim 1, characterized in that: A water inlet pipe (12) is provided on one side of the machine body (1), the water inlet pipe (12) is located above the saw blade (11), and a drive motor for driving the saw blade (11) to rotate is provided inside the machine body (1).

10. A grooving device for precast reinforced concrete frame wall panels according to claim 1, characterized in that: A knob (44) is rotatably connected to the fixed frame B (41), and the knob (44) is fixedly connected to the rotating shaft of the fixed frame B (41). Inclined surfaces are provided on both sides of the top of the extrusion block (43).

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