Plastering control target marker cutting device and building engineering plastering construction system

Abstract

The application discloses a plastering control target point calibration piece cutting device and a building engineering plastering construction system. The plastering control target point calibration piece cutting device comprises a cutting instruction acquisition part, a cutting device control part, and a cutting work execution part. The cutting instruction acquisition part is used for acquiring a cutting instruction. The cutting device control part is used for controlling the cutting work execution part to cut a to-be-cut bar material and obtain a plastering control target point calibration piece according to the cutting instruction. The cutting work execution part is used for automatically cutting the to-be-cut bar material and obtaining the plastering control target point calibration piece under the control of the cutting device control part. The cutting work execution part comprises a feeding mechanism, a cutting length control mechanism, and a cutting mechanism. The feeding mechanism is used for feeding the to-be-cut bar material to the cutting mechanism. The cutting mechanism is used for cutting the to-be-cut bar material. The cutting length control mechanism is used for controlling the relative position between the to-be-cut bar material and the cutting mechanism, so that the plastering control target point calibration piece meets the required thickness.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of building engineering plastering construction, in particular to a plastering control target point calibration piece cutting device, a building engineering plastering construction system and a plastering control target point positioning device. BACKGROUND

[0002] The building engineering plastering construction is a traditional decoration process of coating mortar on the surface of walls, ceilings and the like of buildings. For the plastering construction of the already built wall surface to be plastered, the traditional construction process is the targeting and reinforcing process. The "targeting" is that a standard mortar cake must be made before plastering, a standard mortar cake is made above each corner of the wall surface according to the thickness requirement of the wall surface plastering, and a mortar cake is added at the window and the corner of the wall, then a standard mortar cake at the lower corner of the wall is made by using a plumb line. The "reinforcing" is also an important link for ensuring the plastering quality, the reinforcing is to make a mortar belt between the upper and lower mortar cakes, the height of the mortar belt is the same as that of the mortar cake, and the two sides are inclined surfaces, which are important control marks during large-area plastering. Since the uniformity of the already built wall surface to be plastered is often uneven, there are convexes on the wall surface, and the targeting and reinforcing rely on human experience, and the human experience often has large errors, therefore, the flatness and the perpendicularity of the wall surface after the plastering construction by the targeting and reinforcing are not ideal. SUMMARY

[0003] The embodiment of the present application aims at a new developed building engineering plastering construction process and system applying three-dimensional optical scanning technology, provides a plastering control target point calibration piece cutting device and a building engineering plastering construction system applying the plastering control target point calibration piece cutting device, and provides a plastering control target point positioning device.

[0004] In a first aspect, a building engineering plastering construction process applying three-dimensional optical scanning technology is provided, including: obtaining a measured model of an already built wall surface to be plastered by three-dimensional optical scanning, and obtaining a design model corresponding to the already built wall surface to be plastered by computer modeling; comparing and analyzing the measured model and the design model by a building engineering plastering control target point information generation device to generate plastering control target point information, the plastering control target point information including plastering control target point positioning information and plastering control target point calibration piece thickness information; obtaining a plastering control target point calibration piece with a corresponding thickness according to the plastering control target point calibration piece thickness information, and installing the plastering control target point calibration piece on a corresponding position of the already built wall surface to be plastered according to the plastering control target point positioning information; and performing plastering construction on the already built wall surface to be plastered, and controlling the plastering thickness of the surrounding range of the plastering control target point calibration piece by taking the thickness of the plastering control target point calibration piece protruding from the already built wall surface to be plastered as a ruler during the plastering construction.

[0005] As a further optimization and / or refinement of the above-mentioned construction engineering plastering construction process scheme using three-dimensional optical scanning technology, the three-dimensional optical scanning is specifically three-dimensional laser scanning, and the measured model contains a fitted surface obtained by point cloud data of a built wall surface to be plastered collected by three-dimensional laser scanning.

[0006] As a further optimization and / or refinement of the above-mentioned construction engineering plastering construction process scheme using three-dimensional optical scanning technology, the computer modeling is performed by computer-aided design software.

[0007] As a further optimization and / or refinement of the above-mentioned construction engineering plastering construction process scheme using three-dimensional optical scanning technology, after the building engineering plastering control target point information generation device generates the plastering control target point information, the measured model graph of the built wall surface to be plastered containing the plastering control target point information is displayed on the display of the building engineering plastering control target point information generation device, and the measured model graph of the built wall surface to be plastered contains plastering control target point position indication information.

[0008] As a further optimization and / or refinement of the above-mentioned construction engineering plastering construction process scheme using three-dimensional optical scanning technology, the measured model graph of the built wall surface to be plastered also contains a wall surface convex hull distribution graph, and the wall surface convex hull distribution graph contains convex hull range indication information that needs to be removed; before the built wall surface to be plastered is plastered, the convex hull that needs to be removed on the built wall surface to be plastered is removed according to the convex hull range indication information that needs to be removed.

[0009] As a further optimization and / or refinement of the above-mentioned application of three-dimensional optical scanning technology to the construction engineering plastering construction process, after the generation of the plastering control target point information, the plastering control target point information is provided to a construction engineering plastering control target point marker positioning device; the construction engineering plastering control target point marker positioning device comprises a processor coupled with a memory, the memory is used to store computer programs or instructions, and the processor is used to execute the computer programs or instructions in the memory, so that the construction engineering plastering control target point marker positioning device executes a construction engineering plastering control target point marker positioning method; the construction engineering plastering control target point marker positioning method comprises: obtaining plastering control target point information; obtaining real-time position information of a plastering control target point positioning device, the plastering control target point positioning device is a handheld device that can be movably attached to a built wall surface to be plastered, and has a target point position auxiliary marking part for assisting in marking the specific position of the plastering control target point marker on the built wall surface to be plastered, a first measuring part for measuring the horizontal position of the target point position auxiliary marking part on the built wall surface to be plastered, and a second measuring part for measuring the vertical position of the target point position auxiliary marking part on the built wall surface to be plastered, the real-time position information is the real-time measurement results of the first measuring part and the second measuring part; comparing the real-time position information with the plastering control target point positioning information, and judging whether the real-time position of the plastering control target point positioning device meets the requirements of the plastering control target point positioning information according to the comparison result, generating and providing a plastering control target point positioning device positioning success notification to the operator when it is judged that the real-time position of the plastering control target point positioning device meets the requirements of the plastering control target point positioning information, and generating and providing a plastering control target point positioning device movement instruction notification to the operator when it is judged that the real-time position of the plastering control target point positioning device does not meet the requirements of the plastering control target point positioning information; after the construction engineering plastering control target point marker positioning device provides the plastering control target point positioning device positioning success notification to the operator, the target point position auxiliary marking part is used to mark on the built wall surface to be plastered, and after the construction engineering plastering control target point marker positioning device provides the plastering control target point positioning device movement instruction notification to the operator, the handheld device is moved on the built wall surface to be plastered according to the plastering control target point positioning device movement instruction notification until the construction engineering plastering control target point marker positioning device provides the plastering control target point positioning device positioning success notification to the operator.

[0010] As a further optimization and / or refinement of the above-mentioned construction engineering plastering construction process scheme applying three-dimensional optical scanning technology, the construction engineering plastering control target point calibration piece positioning device displays, through the display of the construction engineering plastering control target point calibration piece positioning device, first display information as a successful positioning notification of the plastering control target point positioning device and second display information as a moving instruction notification of the plastering control target point positioning device, respectively.

[0011] As a further optimization and / or refinement of the above-mentioned construction engineering plastering construction process scheme applying three-dimensional optical scanning technology, the second display information contains a first arrow indicating a specific direction to be moved of the plastering control target point positioning device in the horizontal direction of the built wall surface to be plastered, a first numerical value indicating a distance to be moved of the plastering control target point positioning device in the direction of the first arrow on the built wall surface to be plastered, a second arrow indicating a specific direction to be moved of the plastering control target point positioning device in the vertical direction of the built wall surface to be plastered, and a second numerical value indicating a distance to be moved of the plastering control target point positioning device in the direction of the second arrow on the built wall surface to be plastered.

[0012] As a further optimization and / or refinement of the above-mentioned construction engineering plastering construction process scheme applying three-dimensional optical scanning technology, the construction engineering plastering control target point calibration piece positioning device sends a cutting instruction to a plastering control target point calibration piece cutting device, the cutting instruction containing a cutting length set according to the plastering control target point calibration piece thickness information, and the plastering control target point calibration piece cutting device is used to cut the rod material to be cut according to the cutting length to obtain the plastering control target point calibration piece.

[0013] In a second aspect, the application provides a construction engineering plastering construction system using three-dimensional optical scanning technology, comprising: a three-dimensional optical scanning device for obtaining a measured model of a built wall surface to be plastered; a computer modeling device for obtaining a design model corresponding to the built wall surface to be plastered; a construction engineering plastering control target point information generation device for obtaining the measured model and the design model and performing comparison and analysis on the measured model and the design model to generate plastering control target point information, the plastering control target point information including plastering control target point positioning information and plastering control target point calibration piece thickness information; a construction engineering plastering control target point calibration piece positioning device for obtaining the plastering control target point information and real-time position information of a plastering control target point positioning device, comparing the real-time position information with the plastering control target point positioning information, and then determining whether the real-time position of the plastering control target point positioning device meets the requirements of the plastering control target point positioning information according to the comparison result, generating and providing a plastering control target point positioning device positioning success notification to an operator when it is determined that the real-time position of the plastering control target point positioning device meets the requirements of the plastering control target point positioning information, and generating and providing a plastering control target point positioning device movement instruction notification to the operator when it is determined that the real-time position of the plastering control target point positioning device does not meet the requirements of the plastering control target point positioning information; a plastering control target point positioning device, which is a handheld device that can be movably attached to the built wall surface to be plastered, and has a target point position auxiliary marking part for assisting in marking the specific position of a plastering control target point calibration piece on the built wall surface to be plastered, a first measuring part for measuring the horizontal position of the target point position auxiliary marking part on the built wall surface to be plastered, and a second measuring part for measuring the vertical position of the target point position auxiliary marking part on the built wall surface to be plastered, the real-time position information being real-time measurement results of the first measuring part and the second measuring part; and a plastering control target point calibration piece cutting device for obtaining a cutting instruction issued by the construction engineering plastering control target point calibration piece positioning device, the cutting instruction including a cutting length set according to the plastering control target point calibration piece thickness information, the plastering control target point calibration piece cutting device being configured to cut a to-be-cut rod according to the cutting length to obtain the plastering control target point calibration piece.

[0014] In a third aspect, a method for generating plastering control target point information for a construction project is provided, which can be used in the plastering control target point information generation device described above, and includes: obtaining a measured model of a built wall surface to be plastered obtained by three-dimensional optical scanning; obtaining a design model corresponding to the built wall surface to be plastered obtained by computer modeling; comparing and analyzing the measured model and the design model to generate plastering control target point information, which includes plastering control target point positioning information and plastering control target point calibration piece thickness information, the plastering control target point positioning information is used to determine the specific position of the plastering control target point calibration piece installed on the built wall surface to be plastered, and the plastering control target point calibration piece thickness information is used to determine the corresponding thickness of the plastering control target point calibration piece. When plastering the built wall surface to be plastered, the thickness of the plastering control target point calibration piece protruding from the built wall surface to be plastered is used as a ruler to control the plastering thickness of the surrounding range of the plastering control target point calibration piece.

[0015] As a further optimization and / or refinement of the above-mentioned method for generating plastering control target point information for a construction project, the three-dimensional optical scanning is specifically three-dimensional laser scanning, and the measured model includes a fitted surface obtained from point cloud data of the built wall surface to be plastered collected by three-dimensional laser scanning.

[0016] As a further optimization and / or refinement of the above-mentioned method for generating plastering control target point information for a construction project, the computer modeling is performed by computer-aided design software.

[0017] As a further optimization and / or refinement of the above-mentioned method for generating plastering control target point information for a construction project, after generating the plastering control target point information, a measured model diagram of the built wall surface to be plastered containing the plastering control target point information is displayed on a display, and the measured model diagram of the built wall surface to be plastered contains plastering control target point position indication information.

[0018] As a further optimization and / or refinement of the above-mentioned method for generating plastering control target point information for a construction project, the measured model diagram of the built wall surface to be plastered also contains a wall surface convex hull distribution condition diagram, and the wall surface convex hull distribution condition diagram contains convex hull range indication information that needs to be removed.

[0019] As a further optimization and / or refinement of the above-mentioned construction engineering plastering control target point information generation method, after the plastering control target point information is generated, the plastering control target point information is provided to a construction engineering plastering control target point marker positioning device; the construction engineering plastering control target point marker positioning device includes a processor coupled with a memory, the memory is used to store computer programs or instructions, and the processor is used to execute the computer programs or instructions in the memory, so that the construction engineering plastering control target point marker positioning device executes a construction engineering plastering control target point marker positioning method; the construction engineering plastering control target point marker positioning method includes: obtaining plastering control target point information; obtaining real-time position information of a plastering control target point positioning device, the plastering control target point positioning device is a handheld device that can be movably attached to a built wall surface to be plastered, and has a target point position auxiliary marking part for assisting in marking the specific position of the plastering control target point marker on the built wall surface to be plastered, a first measuring part for measuring the horizontal position of the target point position auxiliary marking part on the built wall surface to be plastered, and a second measuring part for measuring the vertical position of the target point position auxiliary marking part on the built wall surface to be plastered, the real-time position information is the real-time measurement results of the first measuring part and the second measuring part; comparing the real-time position information with the plastering control target point positioning information, and judging whether the real-time position of the plastering control target point positioning device meets the requirements of the plastering control target point positioning information according to the comparison result, generating and providing a plastering control target point positioning device positioning success notification to the operator when it is judged that the real-time position of the plastering control target point positioning device meets the requirements of the plastering control target point positioning information, and generating and providing a plastering control target point positioning device movement instruction notification to the operator when it is judged that the real-time position of the plastering control target point positioning device does not meet the requirements of the plastering control target point positioning information.

[0020] As a further optimization and / or refinement of the above-mentioned construction engineering plastering control target point information generation method, the construction engineering plastering control target point marker positioning device displays first display information as the plastering control target point positioning device positioning success notification and second display information as the plastering control target point positioning device movement instruction notification respectively through the display of the construction engineering plastering control target point marker positioning device.

[0021] As a further optimization and / or refinement of the above-mentioned construction engineering plastering control target information generation method, the construction engineering plastering control target marker positioning device displays a cutting start switch for starting the cutting instruction to the plastering control target marker cutting device through the display of the construction engineering plastering control target marker positioning device. After the cutting start switch is triggered and opened through the input device, the cutting instruction is sent to the plastering control target marker cutting device. The cutting instruction includes the cutting length set according to the plastering control target marker thickness information. The plastering control target marker cutting device is used to cut the rod material to be cut according to the cutting length to obtain the plastering control target marker.

[0022] As a further optimization and / or refinement of the above-mentioned construction engineering plastering control target information generation method, the construction engineering plastering control target information generation method is provided. After the plastering control target information is generated, the plastering control target information is stored as a corresponding computer-readable file.

[0023] In a fourth aspect, a construction engineering plastering control target information generation device is provided. The device includes a processor coupled with a memory. The memory is used to store computer programs or instructions. The processor is used to execute the computer programs or instructions in the memory, so that the construction engineering plastering control target information generation device executes the construction engineering plastering control target information generation method of the third aspect.

[0024] In a fifth aspect, a computer-readable storage medium is provided for storing computer programs or instructions. When the computer programs or instructions are executed, the computer performs the construction engineering plastering control target information generation method of the third aspect.

[0025] In a sixth aspect, a method for positioning a plastering control target marker is provided, which can be used in the plastering control target marker positioning device described above. The method comprises: obtaining plastering control target information, which includes plastering control target positioning information and plastering control target marker thickness information. The plastering control target positioning information is used to determine the specific position of the plastering control target marker installed on the built wall surface to be plastered. The plastering control target marker thickness information is used to determine the corresponding thickness of the plastering control target marker. When performing plastering construction on the built wall surface to be plastered, the thickness of the plastering control target marker protruding from the built wall surface to be plastered is used as a ruler to control the plastering thickness of the surrounding range of the plastering control target marker. Real-time position information of a plastering control target positioning device is obtained. The plastering control target positioning device is a handheld device that can be movably attached to the built wall surface to be plastered and has a target position auxiliary marking part for assisting in marking the specific position of the plastering control target marker installed on the built wall surface to be plastered, a first measuring part for measuring the horizontal position of the target position auxiliary marking part on the built wall surface to be plastered, and a second measuring part for measuring the vertical position of the target position auxiliary marking part on the built wall surface to be plastered. The real-time position information is the real-time measurement results of the first measuring part and the real-time measurement results of the second measuring part. The real-time position information is compared with the plastering control target positioning information, and whether the real-time position of the plastering control target positioning device meets the requirements of the plastering control target positioning information is determined according to the comparison result. When it is determined that the real-time position of the plastering control target positioning device meets the requirements of the plastering control target positioning information, a plastering control target positioning device positioning success notification is generated and provided to the operator. When it is determined that the real-time position of the plastering control target positioning device does not meet the requirements of the plastering control target positioning information, a plastering control target positioning device movement instruction notification is generated and provided to the operator.

[0026] As a further optimization and / or refinement of the above-mentioned method for positioning a plastering control target marker, a display is used to display first display information as the plastering control target positioning device positioning success notification and second display information as the plastering control target positioning device movement instruction notification, respectively.

[0027] As a further optimization and / or refinement of the above-mentioned solution of the method for positioning the plastering control target point calibration piece, the second display information comprises a first arrow for indicating a specific direction in which the plastering control target point positioning device is to be moved in the horizontal direction of the built wall surface to be plastered, a first numerical value for indicating a distance in which the plastering control target point positioning device is to be moved in the direction of the first arrow on the built wall surface to be plastered, a second arrow for indicating a specific direction in which the plastering control target point positioning device is to be moved in the vertical direction of the built wall surface to be plastered, and a second numerical value for indicating a distance in which the plastering control target point positioning device is to be moved in the direction of the second arrow on the built wall surface to be plastered.

[0028] As a further optimization and / or refinement of the above-mentioned solution of the method for positioning the plastering control target point calibration piece, after the plastering control target point information is obtained, a cutting instruction is sent to the plastering control target point calibration piece cutting device, the cutting instruction comprising a cutting length set according to the thickness information of the plastering control target point calibration piece, and the plastering control target point calibration piece cutting device is used to cut the to-be-cut bar according to the cutting length to obtain the plastering control target point calibration piece.

[0029] As a further optimization and / or refinement of the above-mentioned solution of the method for positioning the plastering control target point calibration piece, after the cutting instruction is sent, the plastering control target point calibration piece cutting device automatically cuts the to-be-cut bar to obtain the plastering control target point calibration piece.

[0030] As a further optimization and / or refinement of the above-mentioned solution of the method for positioning the plastering control target point calibration piece, after the plastering control target point information is obtained, a cutting start switch for starting the sending of the cutting instruction to the plastering control target point calibration piece cutting device is displayed on the display, and the cutting start switch is triggered to be turned on by the input device to send the cutting instruction to the plastering control target point calibration piece cutting device.

[0031] As a further optimization and / or refinement of the above-mentioned solution of the method for positioning the plastering control target point calibration piece, before the plastering control target point information is obtained, a target plastering control target point selector for selecting a target plastering control target point from a plurality of plastering control target points is displayed on the display, and after the target plastering control target point selector is operated to select the target plastering control target point, the plastering control target point positioning information and the plastering control target point calibration piece thickness information corresponding to the target plastering control target point are taken as the plastering control target point information.

[0032] As a further optimization and / or refinement of the above-mentioned solution of the building engineering plastering control target marker positioning method, the display and the input device are integrated into a touch screen, which is installed on the handheld device.

[0033] In a seventh aspect, a building engineering plastering control target marker positioning device is provided, comprising a processor coupled with a memory for storing a computer program or instructions, the processor being configured to execute the computer program or instructions in the memory, so that the building engineering plastering control target marker positioning device executes the building engineering plastering control target marker positioning method of the sixth aspect. In addition, the building engineering plastering control target marker positioning device can be integrated with the handheld device.

[0034] In an eighth aspect, a plastering control target marker cutting device is provided, comprising: a cutting instruction obtaining unit configured to obtain a cutting instruction, the cutting instruction comprising a cutting length set according to plastering control target marker thickness information; a cutting device control unit configured to control a cutting work execution unit to cut a to-be-cut rod material and obtain a plastering control target marker according to the cutting instruction; and the cutting work execution unit configured to automatically cut the to-be-cut rod material and obtain the plastering control target marker under the control of the cutting device control unit; wherein the cutting work execution unit comprises a feeding mechanism, a cutting length control mechanism, and a cutting mechanism, the feeding mechanism is configured to feed the to-be-cut rod material to the cutting mechanism, the cutting mechanism is configured to cut the to-be-cut rod material, and the cutting length control mechanism is configured to control the relative position between the to-be-cut rod material and the cutting mechanism so that the plastering control target marker meets the required thickness.

[0035] As a further optimization and / or refinement of the above-mentioned solution of the plastering control target marker cutting device, the housing can be provided with a to-be-cut rod material insertion port and a cut rod material outlet, the feeding mechanism is installed in the housing and feeds the to-be-cut rod material in the axial direction of the to-be-cut rod material insertion port, the cutting mechanism is installed in the housing and is arranged at the discharge end of the feeding mechanism, the cutting mechanism has a cutting part, when the to-be-cut rod material moves axially to a set position, the cutting part cuts into the to-be-cut rod material along the transverse direction of the to-be-cut rod material, so that the to-be-cut rod material is cut off, and the cut cut rod material falls out of the cut rod material outlet as the plastering control target marker.

[0036] As a further optimization and / or refinement of the above-mentioned solution of the plastering control target marker cutting device, the housing is a rectangular box structure, the to-be-cut rod material insertion port is located on the top surface of the rectangular box structure, and the cut rod material outlet is located on one side surface of the rectangular box structure.

[0037] As a further optimization and / or refinement of the above-described plastering control target marker cutting device, the feeding mechanism comprises a belt conveyor having a front roller, a rear roller and a conveying belt wound around the front roller and the rear roller, the conveying belt in operation being in contact with the outer side wall of the to-be-cut bar and the contact surface of the conveying belt with the outer side wall of the to-be-cut bar being in the same direction as the axial direction of the to-be-cut bar.

[0038] As a further optimization and / or refinement of the above-described plastering control target marker cutting device, at least two of the belt conveyors are distributed at different positions around the to-be-cut bar.

[0039] As a further optimization and / or refinement of the above-described plastering control target marker cutting device, the at least two belt conveyors comprise oppositely arranged belt conveyors.

[0040] As a further optimization and / or refinement of the above-described plastering control target marker cutting device, the cutting component adopts a circular saw blade, the cutting mechanism comprises a cutting transverse feeding mechanism and a circular saw blade rotating driving mechanism, the circular saw blade is mounted on the circular saw blade rotating driving mechanism, and the circular saw blade rotating driving mechanism is mounted on the cutting feeding mechanism.

[0041] As a further optimization and / or refinement of the above-described plastering control target marker cutting device, a partition plate is arranged in the housing to divide the housing into a feeding mechanism mounting chamber and a cutting mechanism mounting chamber, the feeding mechanism is located in the feeding mechanism mounting chamber, the cutting mechanism is located in the cutting mechanism mounting chamber, a guide hole is formed in the partition plate and is in communication with the discharge end of the feeding mechanism, and the feeding mechanism mounting chamber is further divided into a to-be-cut bar accommodating chamber and a circular saw blade accommodating chamber by a partition plate, the inlet of the to-be-cut bar accommodating chamber is in communication with the discharge end of the feeding mechanism through the guide hole, the outlet of the to-be-cut bar accommodating chamber serves as the cut bar outlet, the circular saw blade is located in the circular saw blade accommodating chamber and moves transversely in the circular saw blade accommodating chamber under the driving of the cutting transverse feeding mechanism and can cut into the to-be-cut bar accommodating chamber, and the cutting feeding mechanism and the circular saw blade rotating driving mechanism are located in the cutting mechanism mounting chamber and are located outside the to-be-cut bar accommodating chamber and the circular saw blade accommodating chamber.

[0042] As further optimization and / or refinement of the above plaster control target point marking cutting device scheme, the cutting length control mechanism includes a to-be-cut bar stock detection device and a feed mechanism movement amount detection device, the to-be-cut bar stock position detection device is used to detect whether there is a to-be-cut bar stock on the feed mechanism, and the feed mechanism movement amount detection device is used to detect the movement amount of the transmission member of the feed mechanism conveying the to-be-cut bar stock, and the to-be-cut bar stock detection device and the feed mechanism movement amount detection device are respectively connected with the cutting device control part; when the feed mechanism includes the belt conveyor, the feed mechanism movement amount detection device includes a sensor for detecting the rotational displacement amount of the front roller and / or the rear roller.

[0043] In a ninth aspect, a construction engineering plastering construction system is provided, comprising: a three-dimensional optical scanning device for obtaining a measured model of a built wall surface to be plastered; a computer modeling device for obtaining a design model corresponding to the built wall surface to be plastered; a construction engineering plastering control target point information generation device for obtaining the measured model and the design model and performing comparison and analysis on the measured model and the design model to generate plastering control target point information, the plastering control target point information including plastering control target point positioning information and plastering control target point calibration piece thickness information; a construction engineering plastering control target point calibration piece positioning device for obtaining the plastering control target point information and real-time position information of a plastering control target point positioning device, comparing the real-time position information with the plastering control target point positioning information, and then determining whether the real-time position of the plastering control target point positioning device meets the requirements of the plastering control target point positioning information according to the comparison result, generating and providing a plastering control target point positioning device positioning success notification to an operator when it is determined that the real-time position of the plastering control target point positioning device meets the requirements of the plastering control target point positioning information, and generating and providing a plastering control target point positioning device movement instruction notification to the operator when it is determined that the real-time position of the plastering control target point positioning device does not meet the requirements of the plastering control target point positioning information; a plastering control target point positioning device, which is a handheld device that can be movably attached to the built wall surface to be plastered, and has a target point position auxiliary marking part for assisting in marking the specific position of a plastering control target point calibration piece on the built wall surface to be plastered, a first measuring part for measuring the horizontal position of the target point position auxiliary marking part on the built wall surface to be plastered, and a second measuring part for measuring the vertical position of the target point position auxiliary marking part on the built wall surface to be plastered, the real-time position information being real-time measurement results of the first measuring part and the second measuring part; and a plastering control target point calibration piece cutting device for obtaining a cutting instruction, the cutting instruction including a cutting length set according to the plastering control target point calibration piece thickness information, the plastering control target point calibration piece cutting device further being configured to cut a to-be-cut rod according to the cutting length to obtain the plastering control target point calibration piece, the plastering control target point calibration piece cutting device being the plastering control target point calibration piece cutting device of the eighth aspect.

[0044] In a tenth aspect, a trowel control target positioning device is provided, which is a handheld device that can be movably attached to a built wall surface to be troweled, and comprises: a target position auxiliary marking part, which comprises a position indicating mark arranged on the outer shell of the handheld device, and is used for auxiliary marking the specific position of the installation of the trowel control target marker on the built wall surface to be troweled; a first measuring part, which comprises a horizontal distance meter installed on the left side and / or right side of the outer shell of the handheld device, and the relative position between the horizontal distance meter and the target position auxiliary marking part is fixed; and a second measuring part, which comprises a vertical distance meter installed on the top surface and / or bottom surface of the outer shell of the handheld device, and the relative position between the vertical distance meter and the target position auxiliary marking part is fixed.

[0045] As a further optimization and / or refinement of the above-mentioned trowel control target positioning device, the horizontal distance meter and / or the vertical distance meter are both electromagnetic wave distance meters.

[0046] As a further optimization and / or refinement of the above-mentioned trowel control target positioning device, the horizontal distance meter and / or the vertical distance meter are both infrared distance meters.

[0047] As a further optimization and / or refinement of the above-mentioned trowel control target positioning device, the outer shell of the handheld device has a main body part, a handle for movably attaching the handheld device to the built wall surface to be troweled is connected to the main body part, the handle comprises a vertical holding rod, an upper curved connecting handle at the upper end of the vertical holding rod, and a lower curved connecting handle at the lower end of the vertical holding rod, the vertical holding rod is arranged on the front side of the rectangular main body part and connected to the outer wall of the rectangular main body part through the upper curved connecting handle and the lower curved connecting handle, the horizontal distance meter is arranged on the left side and / or right side of the main body part, and the vertical distance meter is arranged on the top surface and / or bottom surface of the main body part.

[0048] As a further optimization and / or refinement of the above-mentioned trowel control target positioning device, a display is arranged on the front side of the outer shell of the handheld device.

[0049] As a further optimization and / or refinement of the above-mentioned trowel control target positioning device, the position indicating mark is arranged on the lower edge of the front side of the outer shell of the handheld device.

[0050] As a further optimization and / or refinement of the above-mentioned trowel control target positioning device, a horizontal length scale and / or a vertical length scale are further arranged on the front side of the outer shell of the handheld device.

[0051] As a further optimization and / or refinement of the above-mentioned troweling control target positioning device solution, the length scale displayed on the horizontal length scale and / or the vertical length scale comprises the position indication mark.

[0052] As a further optimization and / or refinement of the above-mentioned troweling control target positioning device solution, the length scale displayed on the horizontal length scale and / or the vertical length scale has the position indication mark as the origin.

[0053] The building engineering troweling control target information generation device compares and analyzes the measured model of the built wall surface to be troweled obtained by three-dimensional optical scanning and the design model of the built wall surface to be troweled obtained by computer modeling to generate troweling control target information. The thickness distribution of the troweling layer formed based on the troweling control target information in subsequent troweling construction can better correspond to the error distribution between the actual built wall surface to be troweled and the designed built wall surface to be troweled, which helps to make the actual troweled wall surface more close to the designed troweled wall surface as a whole.

[0054] The embodiments of the present application will be further described below in conjunction with the drawings and specific embodiments. Additional aspects and advantages of the embodiments provided by the present application will be partially given in the following description, partially become obvious from the following description, or be understood by practice. BRIEF DESCRIPTION OF DRAWINGS

[0055] The drawings that form a part of this specification are used to assist in the understanding of the embodiments of the present application, the content provided by the drawings and its related description in the specification can be used to explain the embodiments of the present application, but do not constitute improper limitation on the embodiments of the present application.

[0056] Figure 1 A principle schematic diagram of a building engineering troweling construction system applying three-dimensional optical scanning technology according to an embodiment of the present application.

[0057] Figure 2 A flowchart of a building engineering troweling construction process applying three-dimensional optical scanning technology according to an embodiment of the present application.

[0058] Figure 3 A principle schematic diagram of a building engineering troweling control target information generation device according to an embodiment of the present application.

[0059] Figure 4 A flowchart of a building engineering troweling control target information generation method according to an embodiment of the present application.

[0060] Figure 5 A principle schematic diagram of a building engineering troweling control target calibration positioning device according to an embodiment of the present application.

[0061] Figure 6 A flowchart of a building engineering plastering control target point calibration member positioning method according to an embodiment of the present application.

[0062] Figure 7 A photo of three-dimensional optical scanning in the actual implementation process of the building engineering plastering construction process using the three-dimensional optical scanning technology according to an embodiment of the present application.

[0063] Figure 8 A photo of generating a measured model graph in the actual implementation process of the building engineering plastering construction process using the three-dimensional optical scanning technology according to an embodiment of the present application.

[0064] Figure 9 A photo of using a building engineering plastering control target point calibration member positioning device in the actual implementation process of the building engineering plastering construction process using the three-dimensional optical scanning technology according to an embodiment of the present application.

[0065] Figure 10 A photo of using a building engineering plastering control target point calibration member cutting device in the actual implementation process of the building engineering plastering construction process using the three-dimensional optical scanning technology according to an embodiment of the present application.

[0066] Figure 11 A photo of installing a building engineering plastering control target point calibration member in the actual implementation process of the building engineering plastering construction process using the three-dimensional optical scanning technology according to an embodiment of the present application.

[0067] Figure 12 A structural diagram of a plastering control target point positioning device according to an embodiment of the present application.

[0068] Figures 13-15 A structural diagram of a plastering control target point calibration member cutting device according to an embodiment of the present application.

[0069] Marked in the figure: three-dimensional optical scanning device 1, computer modeling device 2, building engineering plastering control target information generating device 3, processor 31, memory 32, input device 33, output device 34, communication device 35, building engineering plastering control target calibration piece positioning device 4, processor 41, memory 42, input device 43, output device 44, communication device 45, target position auxiliary marking part 46, first measuring part 47 and second measuring part 48, plastering control target positioning device 5, target position auxiliary marking part 51, handle 52, vertical holding rod 521, upper curved connecting handle 522, lower curved connecting handle 523, plastering control target calibration piece cutting device 6, shell 61, to-be-cut rod material insertion port 611, cut rod material outlet 612, circuit board 62, belt conveyor 63, front roller 631, rear roller 632, conveyor belt 633, circular saw blade 641, cutting transverse feed mechanism 642, circular saw blade rotation driving mechanism 643, partition plate 65, feeding mechanism mounting chamber 651, cutting mechanism mounting chamber 652, material guiding hole 653, partition plate 66, to-be-cut rod material containing chamber 661, circular saw blade containing chamber 662. DETAILED DESCRIPTION

[0070] The embodiments of the present application will be described in detail below with reference to the drawings. Those skilled in the art can implement the embodiments of the present application based on these descriptions. Before the embodiments of the present application are described in conjunction with the drawings, it should be particularly pointed out that:

[0071] The technical solutions and technical features provided in each part including the following description can be combined with each other without conflict. In addition, in possible cases, these technical solutions and technical features and related combinations can be given a specific technical subject and protected by a related patent.

[0072] The embodiments of the present application involved in the following description are generally only a part of the embodiments and not all the embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of patent protection.

[0073] The terms "include", "contain", "have" and any variations thereof in the specification and corresponding claims and related parts are intended to cover non-exclusive inclusion. Other related terms and units can be reasonably interpreted based on the related content provided in the specification.

[0074] For the plastering construction of the masonry wall surface to be plastered, the traditional construction technology is the targeting and reinforcing technology. Because the forming flatness of the masonry wall surface to be plastered is often uneven, and there are convexes distributed on the wall surface, and the targeting and reinforcing relies on human experience, and the human experience often has a large error, therefore, the flatness and perpendicularity of the wall surface after the plastering construction by the targeting and reinforcing are not ideal. In view of the above problems, a building engineering plastering construction technology and system applying three-dimensional optical scanning technology are provided.

[0075] Figure 1 It is a principle schematic diagram of a building engineering plastering construction system applying three-dimensional optical scanning technology. As shown in the figure, Figure 1 The building engineering plastering construction system applying three-dimensional optical scanning technology specifically includes: a three-dimensional optical scanning device 1, a computer modeling device 2, a building engineering plastering control target point information generation device 3, a building engineering plastering control target point calibration piece positioning device 4, a plastering control target point positioning device 5, and a plastering control target point calibration piece cutting device 6.

[0076] Among them, the three-dimensional optical scanning device 1 is used to obtain a measured model of the masonry wall surface to be plastered. In a preferred embodiment, the three-dimensional optical scanning device 1 adopts a three-dimensional laser scanner; at this time, the measured model can include a fitted surface obtained by three-dimensional laser scanning of the masonry wall surface to be plastered point cloud data. The three-dimensional laser scanning technology is a scanning technology that integrates computer technology, photoelectric technology and precision mechanical manufacturing and processing, which can quickly determine the shape, size and spatial position of the target from a complex entity or real scene, and form high-density point cloud data of the target surface. After scanning, the point cloud data and image data can be mapped through texture to generate a high-precision three-dimensional model (measured model). Its ranging accuracy is millimeter level, angle accuracy is second level, and point accuracy is millimeter level. Generally, it only takes a few seconds to complete panoramic scanning, so it has the advantages of accurate measurement and high efficiency.

[0077] The computer modeling device 2 is used to obtain a design model corresponding to the masonry wall surface to be plastered. Generally, the computer modeling is modeled by computer aided design software. Computer aided design (Computer Aided Design, CAD) is currently widely used in the market. Many computer aided design software (CAD software) can be directly used in the market or developed by oneself and installed and run in the computer hardware system, so as to establish the computer modeling device 2.

[0078] The building engineering plastering control target information generation device 3 is used to obtain the measured model and the design model and to compare and analyze the measured model and the design model to generate plastering control target information, the plastering control target information including plastering control target positioning information and plastering control target marker thickness information, the plastering control target positioning information being used to determine the specific position of the plastering control target marker installed on the built wall surface to be plastered, and the plastering control target marker thickness information being used to determine the corresponding thickness of the plastering control target marker, and the plastering thickness of the surrounding range of the plastering control target marker being controlled by the thickness of the plastering control target marker protruding from the built wall surface to be plastered as a ruler during the plastering construction of the built wall surface to be plastered.

[0079] Generally, the building engineering plastering control target information generation device 3 at least includes a processor coupled with a memory, the memory being used to store a computer program or instructions, and the processor being used to execute the computer program or instructions in the memory, so that the building engineering plastering control target information generation device executes the following building engineering plastering control target information generation method. The method at least includes: obtaining a measured model of a built wall surface to be plastered obtained by three-dimensional optical scanning; obtaining a design model corresponding to the built wall surface to be plastered obtained by computer modeling; and comparing and analyzing the measured model and the design model to generate plastering control target information.

[0080] The internal algorithm of the building engineering plastering control target information generation device 3 specifically used to generate the plastering control target information can be designed according to the principle that the thickness distribution of the plastering layer formed based on the plastering control target information can better correspond to the error distribution between the actual built wall surface to be plastered and the designed built wall surface to be plastered, so that the actual plastered wall surface is more close to the designed plastered wall surface as a whole.

[0081] In a specific embodiment of the present application, the basic principle of making the plastering control targets uniformly distributed on the built wall surface to be plastered is followed when determining the plastering control target positioning information, and the flatness, perpendicularity, room bay and depth size of the built wall surface to be plastered, and the design minimum plastering thickness parameter are all taken as control conditions when determining the plastering control target marker thickness information, forming the basic principle of compensating for the flatness and perpendicularity errors of the built wall surface to be plastered as much as possible under the conditions of guaranteeing the room bay and depth size and the design minimum plastering thickness. For the wall surface protrusion problem, the above basic principle is the prerequisite, and when the wall surface protrusion causes the prerequisite to be difficult to meet, the wall surface protrusion is removed. At this time, the building engineering plastering control target information generation device 3 can generate protrusion range removal indication information to indicate to the operator the wall surface protrusion that needs to be removed.

[0082] The building engineering plastering control target marker positioning device 4 is used to acquire the plastering control target information and real-time position information of the plastering control target positioning apparatus 5, compare the real-time position information with the plastering control target positioning information, and then judge whether the real-time position of the plastering control target positioning apparatus 5 meets the requirements of the plastering control target positioning information according to the comparison result. When it is judged that the real-time position of the plastering control target positioning apparatus meets the requirements of the plastering control target positioning information, a plastering control target positioning apparatus positioning success notification is generated and provided to the operator. When it is judged that the real-time position of the plastering control target positioning apparatus does not meet the requirements of the plastering control target positioning information, a plastering control target positioning apparatus moving instruction notification is generated and provided to the operator.

[0083] Generally, the building engineering plastering control target marker positioning device 4 at least includes a processor coupled with a memory for storing a computer program or instructions, and the processor is used to execute the computer program or instructions in the memory, so that the building engineering plastering control target marker positioning device 4 executes the following building engineering plastering control target marker positioning method. The method at least includes: acquiring plastering control target information; acquiring real-time position information of a plastering control target positioning apparatus 5; comparing the real-time position information with the plastering control target positioning information, and judging whether the real-time position of the plastering control target positioning apparatus 5 meets the requirements of the plastering control target positioning information according to the comparison result. When it is judged that the real-time position of the plastering control target positioning apparatus meets the requirements of the plastering control target positioning information, a plastering control target positioning apparatus positioning success notification is generated and provided to the operator. When it is judged that the real-time position of the plastering control target positioning apparatus does not meet the requirements of the plastering control target positioning information, a plastering control target positioning apparatus moving instruction notification is generated and provided to the operator.

[0084] The plastering control target positioning apparatus 5 is a handheld device that can be movably attached to a built wall surface to be plastered, and has a target position auxiliary marking part for assisting in marking the specific position of the plastering control target marker installed on the built wall surface to be plastered, a first measuring part for measuring the horizontal position of the target position auxiliary marking part on the built wall surface to be plastered, and a second measuring part for measuring the vertical position of the target position auxiliary marking part on the built wall surface to be plastered. The real-time position information is the real-time measurement results of the first measuring part and the second measuring part. In a preferred embodiment, the plastering control target positioning apparatus 5 is integrated with the building engineering plastering control target marker positioning device 4, and at this time, the building engineering plastering control target marker positioning device 4 is integrated in the handheld device.

[0085] The plastering control target marker cutting device 6 is used to obtain cutting instructions, and the cutting instructions include a cutting length set according to the plastering control target marker thickness information. The plastering control target marker cutting device 6 is also used to cut the rod to be cut according to the cutting length to obtain the plastering control target marker. The specific structure of the plastering control target marker cutting device 6 is easy to realize. For example, the plastering control target marker cutting device 6 can include a feeding mechanism, a cutting length control mechanism, and a cutting mechanism. The feeding mechanism is used to feed the rod to be cut to the cutting mechanism. The cutting mechanism is used to cut the rod to be cut. The cutting length control mechanism is used to control the relative position between the rod to be cut and the cutting mechanism, so that the plastering control target marker obtained by cutting meets the required thickness (i.e., the axial length of the plastering control target marker).

[0086] In a preferred embodiment, the cutting instructions should be issued by the construction engineering plastering control target marker positioning device 4. In this way, the cutting instructions can be issued by the construction engineering plastering control target marker positioning device 4 to the plastering control target marker cutting device during the positioning of the plastering control target marker, so that the plastering control target marker being positioned corresponds to the plastering control target marker cut by the plastering control target marker cutting device 6, effectively avoiding confusion between different plastering control target markers. Correspondingly, the construction engineering plastering control target marker positioning device 4 should also be enabled to issue cutting instructions to the plastering control target marker cutting device 6 after obtaining the plastering control target information.

[0087] Figure 2 A flowchart of an application of a construction engineering plastering construction process using a three-dimensional optical scanning technology according to an embodiment of the present application is shown in FIG. 1. As shown in FIG. 1, the construction engineering plastering construction process using a three-dimensional optical scanning technology uses a construction engineering plastering construction system using a three-dimensional optical scanning technology shown in FIG. 2, and specifically includes the following steps. Figure 2 Figure 1

[0088] Step S101: Obtain a measured model of a built wall surface to be plastered by three-dimensional optical scanning, and obtain a design model corresponding to the built wall surface to be plastered by computer modeling. This step requires the use of a three-dimensional optical scanning device 1 and a computer modeling device 2.

[0089] Step S102: Compare and analyze the measured model and the design model by a construction engineering plastering control target information generation device 3 to generate plastering control target information. The plastering control target information includes plastering control target positioning information and plastering control target marker thickness information.

[0090] ​​Step S103: After the building engineering plastering control target point information generating device 3 generates the plastering control target point information, the display of the building engineering plastering control target point information generating device 3 displays the measured model diagram of the built wall surface to be plastered containing the plastering control target point information. The measured model diagram of the built wall surface to be plastered contains the plastering control target point position indication information, and in addition, the measured model diagram of the built wall surface to be plastered also contains the wall surface convex distribution condition diagram, which contains the indication information of the convex range to be removed.

[0091] Step S104: According to the indication information of the convex range to be removed, the convex to be removed on the built wall surface to be plastered is removed.

[0092] Step S105: The plastering control target point information is provided to the building engineering plastering control target point marker positioning device 4, and then the building engineering plastering control target point marker positioning method is implemented. In this process, when the building engineering plastering control target point marker positioning device 4 provides the operator with the positioning success notification of the plastering control target point positioning device, the target point position auxiliary marking part is used to mark on the built wall surface to be plastered (for example, to draw a line on the built wall surface to be plastered), when the building engineering plastering control target point marker positioning device 4 provides the operator with the movement indication notification of the plastering control target point positioning device, the handheld device is moved on the built wall surface to be plastered according to the movement indication notification of the plastering control target point positioning device (see Figure 9 ), until the building engineering plastering control target point marker positioning device 4 provides the operator with the positioning success notification of the plastering control target point positioning device.

[0093] Step S106: The building engineering plastering control target point marker positioning device 4 sends a cutting instruction to the plastering control target point marker cutting device 6. The cutting instruction contains the cutting length set according to the thickness information of the plastering control target point marker.

[0094] Step S107: The plastering control target point marker cutting device 6 cuts the rod to be cut according to the cutting length to obtain the plastering control target point marker.

[0095] Step S108: According to the marking on the built wall surface to be plastered by using the target point position auxiliary marking part, the plastering control target point marker is installed (such as the installation by pasting, see Figure 11 ) on the corresponding position of the built wall surface to be plastered.

[0096] Step S109: plastering construction is performed on the built wall surface to be plastered, and the plastering thickness of the surrounding range of the plastering control target marker is controlled according to the thickness of the plastering control target marker protruding from the built wall surface to be plastered.

[0097] Since the building engineering plastering control target information generation device 3 compares and analyzes the measured model of the built wall surface to be plastered obtained through three-dimensional optical scanning and the design model of the built wall surface to be plastered obtained through computer modeling to generate plastering control target information, the thickness distribution of the plastering layer formed based on the plastering control target information in subsequent plastering construction can better compensate for the error distribution between the actual built wall surface to be plastered and the designed built wall surface to be plastered, which helps to make the actual plastered wall surface more close to the designed plastered wall surface as a whole.

[0098] The details and improvements of the building engineering plastering construction system using three-dimensional optical scanning technology, the building engineering plastering construction process using three-dimensional optical scanning technology, and the devices and steps involved will be further described below.

[0099] Figure 3 A schematic diagram of the principle of a building engineering plastering control target information generation device according to an embodiment of the present application is shown in FIG. 1. Figure 3 As shown in FIG. 1, the building engineering plastering control target information generation device 3 includes a processor 31, a memory 32, an input device 33, an output device 34, and a communication device 35.

[0100] The processor 31 can include a central processing unit (CPU), a digital signal processor (DSP), a microprocessor, an application specific integrated circuit (ASIC), a microcontroller (MCU), a field programmable gate array (FPGA), or one or more integrated circuits for implementing logical operations. The processor 31 can be used to implement the required functions of the building engineering plastering control target information generation device 3, such as controlling the entire building engineering plastering control target information generation device 3, executing software programs, processing data of software programs, etc. The software can be software for implementing the building engineering plastering control target information generation method according to an embodiment of the present application.

[0101] The memory 32 can include mass storage for data or instructions. By way of example, and not limitation, the memory 32 can include a hard disk drive (HDD), floppy disk drive, flash memory, compact disk, digital versatile disk, optical disk, magnetic tape, or universal serial bus (USB) drive or a combination of two or more of these. The memory 32, where appropriate, can include removable or non-removable (or fixed) media. The memory 32 can be internal or external to the processor 31, as appropriate. In certain embodiments, the memory 32 is non-volatile solid-state memory. In certain embodiments, the memory 32 includes read-only memory (ROM); where appropriate, this ROM can be mask-programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), electrically alterable ROM (EAROM), or flash memory, or a combination of two or more of these.

[0102] The input device 33 is in communication with the processor 31 and can accept input from a user in a number of ways. For example, the input device 31 can be a mouse, a keyboard, a touch screen device, or a sensor. The output device 34 is in communication with the processor 31 and can display information in a number of ways. For example, the output device 34 can be various displays, such as liquid crystal displays, light-emitting diode display devices, cathode ray tube display devices, or projectors, etc.

[0103] The communication device 35 can be used to support the communication between the building engineering plastering control target point information generation device 3 and the three-dimensional optical scanning device 1, the computer modeling device 2, and the building engineering plastering control target point marker positioning device 4, respectively, which can be wireless communication, wired communication, or communication through a removable data storage medium (such as a mobile hard disk, an SD card, a USB memory, etc.).

[0104] Figure 4 A flowchart of a building engineering plastering control target point information generation method according to an embodiment of the present application. Figure 4 The building engineering plastering control target point information generation method shown is based on Figure 3 The building engineering plastering control target point information generation device shown. As shown Figure 4 In addition to including obtaining a measured model of the built wall surface to be plastered obtained by three-dimensional optical scanning, obtaining a design model corresponding to the built wall surface to be plastered obtained by computer modeling, and comparing and analyzing the measured model and the design model to generate plastering control target point information, the building engineering plastering control target point information generation method shown can also display, after generating the plastering control target point information, a built wall surface to be plastered measured model graph containing the plastering control target point information through a display (see Figure 8As shown in the figure, the measured model diagram of the built wall surface to be plastered contains the indication information of the plastering control target point position. In addition, the measured model diagram of the built wall surface to be plastered also contains a wall surface convex distribution condition diagram, which includes the indication information of the convex range to be removed. Since the wall surface convexes are often distributed on the built wall surface to be plastered, the processor 31 may, when generating the plastering control target point information by comparing and analyzing the measured model and the design model, generate the convex distribution condition diagram of the wall surface, and then manually remove the corresponding wall surface convexes according to the convex range to be removed, which helps to further improve the plastering construction quality.

[0105] After the plastering control target point information is generated, the plastering control target point information can also be stored as a corresponding computer readable file, which can be stored on a removable data storage medium (such as a mobile hard disk, an SD card, a USB memory, etc.) through the communication device 35, and then the computer readable file can be transferred to the building engineering plastering control target point calibration piece positioning device 4 through the removable data storage medium.

[0106] Figure 5 A principle schematic diagram of a building engineering plastering control target point calibration piece positioning device according to an embodiment of the present application is shown in the figure. Figure 5 As shown in the figure, the building engineering plastering control target point calibration piece positioning device 4 is a handheld device that can be movably attached to the built wall surface to be plastered, which specifically includes a processor 41, a memory 42, an input device 43, an output device 44, a communication device 45, a target point auxiliary marking part 46, a first measuring part 47 and a second measuring part 48.

[0107] The processor 41 can include a central processing unit (CPU), a digital signal processor (DSP), a microprocessor, an application specific integrated circuit (ASIC), a microcontroller (MCU), a field programmable gate array (FPGA) or one or more integrated circuits for implementing logical operations. The processor 41 can be used to implement the required functions of the building engineering plastering control target point calibration piece positioning device 4, such as being used to control the entire building engineering plastering control target point calibration piece positioning device 4, execute software programs, process data of software programs, etc. The software can be software for implementing the building engineering plastering control target point calibration method of the embodiment of the present application.

[0108] The memory 42 can include mass storage for data or instructions. By way of example, and not limitation, the memory 32 can include a hard disk drive (HDD), a floppy disk drive, flash memory, an optical disc, a magneto-optical disc, magnetic tape, or a Universal Serial Bus (USB) drive or a combination of two or more of these. The memory 42, in some embodiments, is a removable or non-removable (or fixed) media. The memory 42, in some embodiments, is internal or external to the processor 41. In some embodiments, the memory 42 is a nonvolatile solid-state memory. In some embodiments, the memory 42 includes read-only memory (ROM); where appropriate, this ROM can be mask programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically erasable PROM (EEPROM), electrically alterable ROM (EAROM), or flash memory, or a combination of two or more of these.

[0109] The input device 43 is in communication with the processor 41, and can accept input to the user in a number of ways. For example, the input device 41 can be a mouse, a keyboard, a touchscreen device, or a sensor. The output device 44 is in communication with the processor 41, and can display information in a number of ways. For example, the output device 44 can be various displays, such as liquid crystal displays, light emitting diode display devices, cathode ray tube display devices, or projectors, etc.

[0110] The communication device 45 can be used to support the communication between the building engineering plastering control target point calibration device 4 and the building engineering plastering control target point information generation device 3, the plastering control target point calibration device cutting device 6, respectively, which can be wireless communication, wired communication or communication through a removable data storage medium (such as a mobile hard disk, an SD card, a USB memory, etc.).

[0111] The target point position auxiliary marking part 46 is used to assist in marking the specific position of the plastering control target point calibration device on the built wall surface to be plastered, specifically a position indicating mark provided on the housing of the handheld device, which is used for manual line drawing on the built wall surface to be plastered.

[0112] The first measuring part 47 is used for measuring the horizontal position of the target position auxiliary marking part 46 on the built wall surface, and specifically adopts a horizontal infrared range finder. The relative position between the horizontal infrared range finder and the target position auxiliary marking part 46 is fixed. When in use, the corner of the side edge of the built wall surface (if there is no wall surface, a baffle is artificially placed) is taken as a reference surface. The horizontal distance between the horizontal infrared range finder and the wall surface is measured by the horizontal infrared range finder, so that the horizontal position of the target position auxiliary marking part 46 on the built wall surface can be obtained.

[0113] The second measuring part 48 is used for measuring the vertical position of the target position auxiliary marking part 46 on the built wall surface, and specifically adopts a vertical infrared range finder. The relative position between the vertical infrared range finder and the target position auxiliary marking part 46 is fixed. When in use, the top plate or the bottom plate adjacent to the built wall surface is taken as a reference surface. The vertical distance between the vertical infrared range finder and the reference surface is measured by the vertical infrared range finder, so that the vertical position of the target position auxiliary marking part 46 on the built wall surface can be obtained.

[0114] The first measuring part 47 and the second measuring part 48 are in communication with the processor 41, so that the processor 41 can compare the real-time position information with the plastering control target positioning information, and judge whether the real-time position of the building engineering plastering control target positioning device 4 meets the requirements of the plastering control target positioning information according to the comparison result.

[0115] Therefore, Figure 5 The building engineering plastering control target positioning device 4 shown in the figure has integrated the plastering control target positioning device 5.

[0116] Figure 12 It is a structural schematic view of a plastering control target positioning device for an embodiment of the present application. As shown in the figure, Figure 12 The plastering control target positioning device 5 is a handheld device that can be movably attached to the built wall surface, and includes: a target position auxiliary marking part 51, which contains a position indicating mark arranged on the housing of the handheld device, and is used for assisting in marking the specific position of the plastering control target positioning device on the built wall surface; a first measuring part 47, which contains a horizontal range finder installed on the left side and / or the right side of the housing of the handheld device. The relative position between the horizontal range finder and the target position auxiliary marking part is fixed; and a second measuring part 48, which contains a vertical range finder installed on the top surface and / or the bottom surface of the housing of the handheld device. The relative position between the vertical range finder and the target position auxiliary marking part is fixed.

[0117] Specifically, the horizontal distance meter and / or the vertical distance meter are both electromagnetic wave distance meters. More specifically, the horizontal distance meter and / or the vertical distance meter are both infrared distance meters.

[0118] In addition, the housing of the handheld device has a main body portion, to which a handle 52 for movably attaching the handheld device to a built wall surface to be plastered is connected. The handle 52 comprises a vertical holding rod 521, an upper curved connecting handle 522 at the upper end of the vertical holding rod 521, and a lower curved connecting handle 523 at the lower end of the vertical holding rod 521. The vertical holding rod 521 is located at the front side of the rectangular main body portion and is connected to the outer wall of the rectangular main body portion through the upper curved connecting handle 522 and the lower curved connecting handle 523. The horizontal distance meter is arranged on the left side and / or the right side of the main body portion, and the vertical distance meter is arranged on the top surface and / or the bottom surface of the main body portion.

[0119] In addition, a display is arranged on the front side of the housing of the handheld device. The display can serve as the aforementioned output device 44, and in this case, the plastering control target point positioning device 5 and the constructional engineering plastering control target point marker positioning device 4 are integrated. The display can be a touch screen.

[0120] In addition, a position indicating mark is arranged on the lower edge of the front side of the housing of the handheld device, so as to facilitate auxiliary marking (e.g. line drawing) of the specific position of the installation of the plastering control target point marker on the built wall surface to be plastered.

[0121] In addition, a horizontal length scale and / or a vertical length scale (not shown in the figure) are arranged on the front side of the housing of the handheld device. In addition, the length scale displayed on the horizontal length scale and / or the vertical length scale can comprise the position indicating mark, for example, the length scale displayed on the horizontal length scale and / or the vertical length scale takes the position indicating mark as the origin. Arranging the horizontal length scale and / or the vertical length scale on the front side of the housing of the handheld device can intuitively provide the operator with a reference scale of the moving distance of the handheld device when the handheld device is moved on the built wall surface to be plastered, which helps to more quickly and accurately move the handheld device to the required position.

[0122] When the constructional engineering plastering control target point marker positioning device 4 and the plastering control target point positioning device 5 are integrated, the processor 41, the memory 42, the communication device 45, etc. of the constructional engineering plastering control target point marker positioning device 4 can be installed in the housing of the handheld device.

[0123] Figure 6 A flowchart of a constructional engineering plastering control target point marker positioning method according to an embodiment of the present application.Figure 6 The building engineering plastering control target marker positioning method shown is based on Figure 5 The building engineering plastering control target marker positioning device shown. As shown in Figure 6 The building engineering plastering control target marker positioning method shown comprises:

[0124] Step S201: display a target plastering control target marker filter for selecting a target plastering control target marker from a plurality of plastering control target markers on a display (belonging to the output device 44), and after the target plastering control target marker is selected by operating the target plastering control target marker filter through the input device 43, the plastering control target marker positioning information and the plastering control target marker marker thickness information corresponding to the target plastering control target marker are taken as the plastering control target marker information.

[0125] Since a plurality of plastering control target markers are often arranged on the masonry wall surface to be plastered, in addition, three-dimensional optical scanning can scan each masonry wall surface (usually 4) in a room at a time, therefore, the plastering control target marker information generated by the building engineering plastering control target marker information generation device 3 often contains the plastering control target marker positioning information and the plastering control target marker marker thickness information corresponding to each of the plurality of plastering control target markers. Therefore, step S201 uses the target plastering control target marker filter software to select a target plastering control target marker first, so as to cut and position the specific plastering control target marker later.

[0126] Step S202: acquire the plastering control target marker information (here, the plastering control target marker information specifically refers to the plastering control target marker positioning information and the plastering control target marker marker thickness information corresponding to the target plastering control target marker) and the real-time position information of the plastering control target marker positioning device (here, the plastering control target marker positioning device is the building engineering plastering control target marker positioning device 4).

[0127] Step S203: compare the real-time position information with the plastering control target marker positioning information, and determine whether the real-time position of the plastering control target marker positioning device meets the requirements of the plastering control target marker positioning information according to the comparison result, generate and provide the plastering control target marker positioning device positioning success notification to the operator when it is determined that the real-time position of the plastering control target marker positioning device meets the requirements of the plastering control target marker positioning information, and generate and provide the plastering control target marker positioning device movement instruction notification to the operator when it is determined that the real-time position of the plastering control target marker positioning device does not meet the requirements of the plastering control target marker positioning information.

[0128] In step S203, in order to facilitate the operator's operation, the first display information as the positioning success notification of the plastering control target point positioning device and the second display information as the movement instruction notification of the plastering control target point positioning device are respectively displayed by the display (belonging to the output device 44).

[0129] The second display information can include a first arrow indicating a specific direction in which the plastering control target point positioning device is to be moved in the vertical direction of the built wall surface to be plastered, a first numerical value indicating a distance to be moved of the plastering control target point positioning device in the direction of the first arrow on the built wall surface to be plastered, a second arrow indicating a specific direction in which the plastering control target point positioning device is to be moved in the vertical direction of the built wall surface to be plastered, and a second numerical value indicating a distance to be moved of the plastering control target point positioning device in the direction of the second arrow on the built wall surface to be plastered. In this way, the operator can be intuitively provided with the movement instruction notification of the plastering control target point positioning device.

[0130] In addition, after the first display information as the positioning success notification of the plastering control target point positioning device is displayed by the display, a cutting start switch can also be generated or activated on the display, and the cutting instruction can be further sent to the plastering control target point marker cutting device 6 by responding to the operation of the cutting start switch by the operator using the input device 43.

[0131] In an optional embodiment, the plastering control target point marker cutting device 6 is designed as a rectangular box structure (see Figure 10 The top surface of the rectangular box structure is provided with a cutting rod insertion port, and the cutting rod can be made of a material such as plastic that is easy to cut and has a certain strength to maintain its shape. The diameter of the cutting rod is just large enough to be inserted into the cutting rod insertion port. Figure 10 The white slender object on the plastering control target point marker cutting device 6 is the cutting rod). One side surface of the rectangular box structure is provided with a cut rod (i.e., the plastering control target point marker) outlet for discharging the cut plastering control target point marker from the rectangular box structure. The feeding mechanism is located in the rectangular box structure and can specifically adopt a piston reciprocating mechanism for supporting the lower end of the cutting rod. The position of the piston rod of the piston reciprocating mechanism is controlled by the cutting length control mechanism. When the piston rod moves downward, the cutting rod moves downward along the cutting rod insertion port.

[0132] Figures 13-15 This is a schematic diagram of a plastering control target point calibration component cutting device according to an embodiment of the present invention. Figures 13-15 As shown, the plaster control target calibration part cutting device 6 includes: a cutting command acquisition unit for acquiring a cutting command, the cutting command including a cutting length set according to the thickness information of the plaster control target calibration part; a cutting device control unit for controlling the following cutting work execution unit to cut the bar to be cut and obtain the plaster control target calibration part according to the cutting command; and a cutting work execution unit for automatically cutting the bar to be cut and obtaining the plaster control target calibration part under the control of the cutting device control unit; wherein, the cutting work execution unit includes a feeding mechanism, a cutting length control mechanism, and a cutting mechanism, the feeding mechanism for feeding the bar to be cut to the cutting mechanism, the cutting mechanism for cutting the bar to be cut, and the cutting length control mechanism for controlling the relative position between the bar to be cut and the cutting mechanism so that the plaster control target calibration part meets the required thickness. Specifically, the plastering control target calibration component cutting device 6 includes a housing 61. The housing 61 has a bar insertion port 611 and a cut bar outlet 612. A feeding mechanism is installed inside the housing 61 and feeds the bar to be cut along the axial direction of the bar insertion port 611. A cutting mechanism is installed inside the housing 61 and located at the discharge end of the feeding mechanism. The cutting mechanism has a cutting component. When the bar to be cut moves axially to a set position, the cutting component cuts into the bar laterally along the bar to be cut, thus cutting the bar. The cut bar falls out from the cut bar outlet 612 as the plastering control target calibration component. The housing 61 can serve as the outer shell of the aforementioned rectangular box structure. In this case, the bar insertion port 611 is located on the top surface of the housing 61, and the cut bar outlet 612 is located on one side surface of the housing 61. Since both the feeding mechanism and the cutting mechanism are located in the housing 61, the cutting operation of the bar stock to be cut is carried out in the housing 61, which can reduce construction risks, noise and environmental pollution.

[0133] like Figure 14 As shown, a circuit board 62 is also provided inside the housing 61, on which the circuit components of the cutting command acquisition unit and the cutting device control unit are integrated. In one optional embodiment, the cutting command acquisition unit uses a Bluetooth module for wireless signal transmission and reception; in this case, the Bluetooth module is integrated on the circuit board 62. In another optional embodiment, the cutting device control unit uses a standard controller, which is connected to the Bluetooth module, the feeding mechanism, the cutting mechanism, and the cutting length control mechanism to achieve the required control.

[0134] like Figure 15As shown, after opening a portion of the side wall of the housing 61, it can be seen that the feeding mechanism includes a belt conveyor 63. The belt conveyor 63 has a front roller 631, a rear roller 632, and a conveyor belt 633 wound around the front roller 631 and the rear roller 632. When the conveyor belt 633 is working, it contacts the outer side wall of the bar to be cut, and the conveying direction of the contact surface with the outer side wall of the bar to be cut is consistent with the axial direction of the bar to be cut. In one specific embodiment, as... Figure 15 As shown, the feeding mechanism includes two belt conveyors 63, which are distributed at different positions around the bar stock to be cut and are arranged opposite to each other. The belt conveyors 63 maintain constant contact with the bar stock, and the large contact area between the conveyor belt 63 and the bar stock effectively ensures accurate feeding. When the two belt conveyors 63 are arranged opposite each other, the contact area between the conveyor belt 633 and the bar stock is further increased, and the posture of the bar stock is better maintained.

[0135] like Figure 14 As shown, the cutting component can be a circular saw blade 641. The cutting mechanism includes a cutting transverse feed mechanism 642 and a circular saw blade rotation drive mechanism 643. The circular saw blade 641 is mounted on the circular saw blade rotation drive mechanism 643, and the circular saw blade rotation drive mechanism 643 is mounted on the cutting feed mechanism 642. The circular saw blade rotation drive mechanism 643 is typically an electric motor. The cutting transverse feed mechanism 642 can employ various mechanical structures capable of causing the circular saw blade rotation drive mechanism 643 (such as an electric motor) to reciprocate laterally.

[0136] In addition, such as Figures 14-15As shown, the shell 61 is divided into a feeding mechanism installation chamber 651 and a cutting mechanism installation chamber 652 by a partition 65, the feeding mechanism is located in the feeding mechanism installation chamber as a whole, the cutting mechanism is located in the cutting mechanism installation chamber as a whole, the partition 65 is provided with a material guiding hole 653 which is in communication with the discharging end of the feeding mechanism, the feeding mechanism installation chamber is further divided into a separate cutting rod material containing chamber 661 and a circular saw blade containing chamber 662 by a partition 66, the inlet of the cutting rod material containing chamber is in communication with the discharging end of the feeding mechanism through the material guiding hole, the outlet of the cutting rod material containing chamber is the cut rod material outlet 612, the circular saw blade 641 is located in the circular saw blade containing chamber and moves transversely in the circular saw blade containing chamber under the driving of the cutting transverse feeding mechanism and can cut into the cutting rod material containing chamber, the cutting feeding mechanism and the circular saw blade rotating driving mechanism are located in the cutting mechanism installation chamber and outside the cutting rod material containing chamber and the circular saw blade containing chamber. It can be seen that the above structure can avoid the dust generated by cutting from being scattered in the whole shell 61 and affecting the stable operation of the related equipment.

[0137] In an optional embodiment, the cutting length control mechanism comprises a cutting rod material detection device and a feeding mechanism movement detection device, the cutting rod material detection device is used for detecting whether there is a cutting rod material on the feeding mechanism, and the feeding mechanism movement detection device is used for detecting the movement amount of a transmission member of the feeding mechanism for conveying the cutting rod material, and the cutting rod material detection device and the feeding mechanism movement detection device are connected with the cutting device control part respectively.

[0138] Specifically, when the feeding mechanism comprises the belt conveyor, the feeding mechanism movement detection device comprises a sensor for detecting the rotational displacement amount of the front roller 631 and / or the rear roller 632. The cutting rod material detection device can comprise a cutting rod material contact sensor arranged on the feeding route of the feeding mechanism, when the cutting rod material contact sensor contacts the cutting rod material, it indicates that there is a cutting rod material on the feeding mechanism, otherwise it indicates that there is no cutting rod material on the feeding mechanism.

[0139] The working principle of the cutting length control mechanism is as follows: before the troweling control target point calibration member cutting device is formally used, the to-be-cut rod is inserted into the insertion port 611 and the feeding mechanism is operated until the head of the to-be-cut rod enters the to-be-cut rod accommodating chamber 661 through the guide hole 653, and then the cutting mechanism is started to cut the to-be-cut rod, at this time, the to-be-cut rod that has not been cut is in the set initial position. Thereafter, the cutting device control portion controls the front roller 631 and / or the rear roller 632 of the feeding mechanism to rotate according to the cutting instruction, and the rotation displacement amount of the front roller 631 and / or the rear roller 632 can be detected by the feeding mechanism movement detection device to calculate the advancing length of the to-be-cut rod, when the advancing length of the to-be-cut rod reaches the set requirement, the feeding mechanism is stopped and the cutting mechanism is started. In the above process, once the to-be-cut rod contact sensor is not in contact with the to-be-cut rod, it means that the to-be-cut rod is about to run out, at this time, a new to-be-cut rod needs to be inserted.

[0140] The above describes the relevant content of the present application. Those skilled in the art can implement the present application based on the above description. Based on the above description of the present application, all other embodiments obtained by those skilled in the art without creative labor shall fall within the scope of the present application.

Claims

1. A system for plastering construction work, characterized in that, Comprise: a three-dimensional optical scanning device for obtaining a measured model of a masonry wall surface to be plastered; a computer modeling device for obtaining a design model corresponding to the masonry wall surface to be plastered; a building engineering plastering control target point information generation device for obtaining the measured model and the design model and performing comparison analysis on the measured model and the design model to generate plastering control target point information, the plastering control target point information including plastering control target point positioning information and plastering control target point calibration element thickness information; a building engineering plastering control target point calibration element positioning device for obtaining the plastering control target point information and real-time position information of a plastering control target point positioning device, comparing the real-time position information with the plastering control target point positioning information, and then determining whether the real-time position of the plastering control target point positioning device meets the requirements of the plastering control target point positioning information according to the comparison result, generating and providing a plastering control target point positioning device positioning success notification to an operator when it is determined that the real-time position of the plastering control target point positioning device meets the requirements of the plastering control target point positioning information, and generating and providing a plastering control target point positioning device movement instruction notification to the operator when it is determined that the real-time position of the plastering control target point positioning device does not meet the requirements of the plastering control target point positioning information; a plastering control target point positioning device, which is a handheld device that can be movably attached to a masonry wall surface to be plastered, and has a target point position auxiliary marking part for assisting in marking the specific position of a plastering control target point calibration element on the masonry wall surface to be plastered, a first measuring part for measuring the horizontal position of the target point position auxiliary marking part on the masonry wall surface to be plastered, and a second measuring part for measuring the vertical position of the target point position auxiliary marking part on the masonry wall surface to be plastered, the real-time position information being the real-time measurement results of the first measuring part and the second measuring part; and ​ The device is used for obtaining cutting instruction, and the cutting instruction includes cutting length set according to thickness information of the plastering control target marker. The device is also used for cutting the rod to be cut according to the cutting length to obtain the plastering control target marker. The device includes a cutting instruction obtaining unit, a cutting device control unit and a cutting work execution unit. The cutting instruction obtaining unit is used for obtaining cutting instruction, and the cutting instruction includes cutting length set according to thickness information of the plastering control target marker. The cutting device control unit is used for controlling the cutting work execution unit to cut the rod to be cut to obtain the plastering control target marker according to the cutting instruction. The cutting work execution unit is used for automatically cutting the rod to be cut to obtain the plastering control target marker under the control of the cutting device control unit. The cutting work execution unit includes a feeding mechanism, a cutting length control mechanism and a cutting mechanism. The feeding mechanism is used for feeding the rod to be cut to the cutting mechanism. The cutting mechanism is used for cutting the rod to be cut. The cutting length control mechanism is used for controlling the relative position between the rod to be cut and the cutting mechanism so that the plastering control target marker meets the required thickness.

2. A building engineering trowelling system according to claim 1 wherein: The device includes a shell, a feeding mechanism and a cutting mechanism. The shell is provided with a rod to be cut insertion port and a cut rod outlet. The feeding mechanism is installed in the shell and feeds the rod to be cut in the axial direction of the rod to be cut insertion port. The cutting mechanism is installed in the shell and is arranged at the discharge end of the feeding mechanism. The cutting mechanism has a cutting part. When the rod to be cut moves axially to a set position, the cutting part cuts into the rod to be cut in the transverse direction of the rod to be cut, so that the rod to be cut is cut off. The cut rod falls out of the cut rod outlet as the plastering control target marker.

3. A building engineering trowelling system according to claim 2, wherein: The shell is a rectangular box structure. The rod to be cut insertion port is located on the top surface of the rectangular box structure. The cut rod outlet is located on one side surface of the rectangular box structure.

4. A building trowelling system according to claim 2, wherein: The feeding mechanism includes a belt conveyor. The belt conveyor has a front roller, a rear roller and a conveying belt wound around the front roller and the rear roller. When the conveying belt works, it is in contact with the outer side wall of the rod to be cut, and the contact surface of the outer side wall of the rod to be cut is consistent with the axial direction of the rod to be cut.

5. A building engineering trowelling system according to claim 4 wherein: The device includes at least two belt conveyors. The at least two belt conveyors are distributed in different directions around the rod to be cut.

6. A building engineering trowelling system according to claim 5 wherein: The at least two belt conveyors include oppositely arranged belt conveyors.

7. A building trowelling system according to claim 2 wherein: The cutting part is a circular saw blade. The cutting mechanism includes a cutting transverse feeding mechanism and a circular saw blade rotating driving mechanism. The circular saw blade is installed on the circular saw blade rotating driving mechanism. The circular saw blade rotating driving mechanism is installed on the cutting feeding mechanism.

8. A building engineering trowelling system according to claim 7, wherein: The shell is separated by a partition into a feeding mechanism mounting chamber and a cutting mechanism mounting chamber, the feeding mechanism is located in the feeding mechanism mounting chamber as a whole, the cutting mechanism is located in the cutting mechanism mounting chamber as a whole, the partition is provided with a material guiding hole in communication with the discharge end of the feeding mechanism, the feeding mechanism mounting chamber is further separated by a partition into a separate cutting rod material containing chamber and a circular saw blade containing chamber, the inlet of the cutting rod material containing chamber is communicated with the discharge end of the feeding mechanism through the material guiding hole, the outlet of the cutting rod material containing chamber is the cut rod material outlet, the circular saw blade is located in the circular saw blade containing chamber and moves transversely in the circular saw blade containing chamber under the driving of the cutting transverse feeding mechanism and cuts into the cutting rod material containing chamber, the cutting feeding mechanism and the circular saw blade rotating driving mechanism are located in the cutting mechanism mounting chamber and outside the cutting rod material containing chamber and the circular saw blade containing chamber.

9. A building trowelling system according to any one of claims 1 to 8, wherein: The cutting length control mechanism comprises a cutting rod material detection device and a feeding mechanism movement detection device, the cutting rod material detection device is used for detecting whether the feeding mechanism has the cutting rod material, the feeding mechanism movement detection device is used for detecting the movement amount of the transmission member of the feeding mechanism conveying the cutting rod material, and the cutting rod material detection device and the feeding mechanism movement detection device are connected with the cutting device control part respectively.

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