Grooving machine and grooving method

Abstract

The application provides a slotting machine and a slotting method thereof, and relates to the technical field of building construction equipment. The slotting machine comprises a rack, a milling cutter, a driving mechanism and a positioning guide device. The milling cutter is parallel arranged and rotatably installed on the rack, and is used for cutting the clamping groove on both sides of the plate synchronously. The driving mechanism is installed on the rack and connected with the milling cutter. The positioning guide device is installed on one side of the rack close to the milling cutter. The positioning guide device comprises a reference positioning member, a depth positioning member and a lateral positioning member. The reference positioning member, the depth positioning member and the lateral positioning member enclose a directional sliding space, which is used for guiding the milling cutter to slide in a specified cutting depth along the cutting position on the plate. The two milling cutters are located in the directional sliding space. Through multi-dimensional positioning and collaborative design, the efficient and accurate cutting of the clamping groove on both sides of the plate is realized, and the method is suitable for the U-shaped clamping groove processing of the ALC partition plate.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of building construction equipment, and particularly relates to a slotting machine for slotting a U-shaped clamping seat in a wallboard installation process and a slotting method using the slotting machine. BACKGROUND

[0002] In the installation process of ALC partition wallboard, the traditional method is to directly sleeve the U-shaped clamping seat on the ALC partition wallboard without taking any other measures. This installation method causes the U-shaped clamping seat to protrude on both sides of the ALC partition wallboard.

[0003] If the wall surface is only treated by puttying, since the U-shaped clamping seat protrudes beyond the surface of the wallboard, it cannot be covered, which will cause a protrusion at the position of each U-shaped clamping seat, affecting the appearance of the wall surface and failing to normally complete the puttying process. If the wall surface is treated by painting, since the U-shaped clamping seat protrudes above the plane, it will increase the overall thickness of the wall surface painting. The thickness of the U-shaped clamping seat itself is 1.5 mm, plus the reserved clamping gap and the deformation after clamping, the minimum protrusion on one side is 3 mm beyond the plane of the wall. Under normal circumstances, the thickness of thin layer painting is about 10 mm, and due to the problem of the U-shaped clamping seat, the painting thickness will increase by 30%, which not only leads to a large consumption of raw materials, but also prolongs the construction time.

[0004] To solve the problems of low efficiency and poor quality of manual slotting, mechanical slotting equipment has appeared in the prior art, such as the "plate slotting machine" with the announcement number CN209174972U, which has the technical scheme including a rack, an electric control cabinet, a workbench, a horizontally moving sliding mechanism and a slotting device. The slotting device is composed of an L-shaped fixed seat, a motor, a milling cutter and symmetrical rollers arranged on both sides of the milling cutter. The slotting device is driven by the sliding mechanism to move horizontally to realize slotting.

[0005] However, the existing plate slotting machine still has many defects that cannot meet the demand of rapid on-site slotting of the U-shaped clamping seat of the ALC partition wallboard, which are as follows:

[0006] 1. Limited operation efficiency: The single milling cutter structure needs to position the plate horizontally on the workbench before carrying out the slotting operation, and can only realize single-sided slotting. If the clamping groove adapted to the U-shaped clamping seat needs to be processed on both sides of the plate, it must be positioned twice and cut twice, which is not only complicated, time-consuming and laborious, but also high in construction cost. In addition, it is easy to cause the asymmetry of the two sides of the groove due to the positioning deviation of the two operations, which cannot meet the size requirements of accurate installation of the U-shaped clamping seat.

[0007] II. Scene applicability limitation: The device operation is highly dependent on the fixed workbench and horizontal sliding mechanism, the overall volume is large, the mobility is poor, and it is only suitable for batch processing scenes of standardized plates in factories. However, in the construction site, it is difficult to transport large ALC partition wall plates that need to be processed on site, and the device cannot achieve flexible operation. At the same time, it has high space occupation demand for the construction site, and it is difficult to deploy in a narrow construction site, and it cannot adapt to the construction rhythm of instant slotting.

[0008] In view of the deficiencies of the prior art, there is an urgent need for a slotting device with high efficiency and strong scene adaptability to solve the core pain point of ALC partition wall plate U-shaped seat slotting. SUMMARY

[0009] The present application aims to overcome the problems of protruding plate surface, high subsequent construction cost and low efficiency in traditional ALC partition wall plate U-shaped seat installation, and to solve the defects of limited operation efficiency and scene applicability limitation of existing plate slotting machines. A slotting machine and a slotting method are provided to achieve efficient on-site slotting operation and reduce construction cost.

[0010] Technical scheme of the present application:

[0011] The present application provides a slotting machine, comprising a rack, a milling cutter, a driving mechanism and a positioning guide device. The milling cutter is two and arranged in parallel, rotatably mounted on the rack, used for synchronous cutting of the card slot on both sides of the plate. The driving mechanism is installed on the rack and connected with the milling cutter, used for driving the milling cutter to rotate. The positioning guide device is installed on one side of the rack close to the milling cutter. The positioning guide device comprises a reference positioning member, a depth positioning member and a lateral positioning member. The reference positioning member is used for sliding against the end face of the plate. The depth positioning member is used for limiting the cutting depth. The lateral positioning member is used for clamping the two side surfaces of the plate and can slide along the cutting depth direction. The reference positioning member, the depth positioning member and the lateral positioning member form a directional sliding space, which is used to guide the milling cutter to slide in a specified cutting depth along the cutting position on the plate. The two milling cutters are located in the directional sliding space, and their axes are perpendicular to the positioning plane formed by the reference positioning member.

[0012] According to one embodiment of the present application, the reference positioning member is installed on the rack. The depth positioning member is installed on the rack and close to one end of the reference positioning member. The positioning plane formed by the depth positioning member is perpendicular to the positioning plane formed by the reference positioning member. The lateral positioning member is installed on the rack and located on both sides of the reference positioning member.

[0013] According to one embodiment of the present application, the lateral positioning member comprises positioning wheels, and at least two rotatable positioning wheels are arranged on each side of the reference positioning member; the distance between the positioning wheels on one side of the reference positioning member and the positioning wheels on the other side of the reference positioning member is adapted to the thickness of the plate.

[0014] According to one embodiment of the present application, the lateral positioning member further comprises connecting plates and positioning seats; one end of the connecting plate is mounted on the frame, and the other end of the connecting plate is mounted with the positioning seat; the positioning wheels are rotatably mounted on the positioning seat; one positioning seat is arranged corresponding to each positioning wheel, and one connecting plate is arranged corresponding to each positioning seat; the connecting plates mounted on one side of the frame and the connecting plates mounted on the other side of the frame are arranged in parallel, and the connecting plates arranged in parallel have elastic space therebetween, which is used for self-adaptively clamping the two side surfaces of the plate by the positioning wheels on the two sides.

[0015] According to one embodiment of the present application, the driving mechanism adopts two motors, and each motor is connected with one milling cutter.

[0016] According to one embodiment of the present application, two handles are further mounted on the two ends of the frame, which are used for moving the slotting machine by holding and pushing the slotting machine with two hands to realize cutting and slotting.

[0017] According to one embodiment of the present application, a power supply device is further included, which is a battery for supplying power to the driving mechanism; the battery and the positioning and guiding device are respectively mounted on the two side surfaces of the frame.

[0018] According to one embodiment of the present application, the frame is a "N" shaped structure, which is composed of two cover plates and two vertical plates; the space for accommodating the driving mechanism is formed between the two cover plates, and the two vertical plates are vertically mounted on the two ends of the cover plates; the handles are mounted on the outer sides of the vertical plates.

[0019] According to one embodiment of the present application, the reference positioning member is mounted on the whole of the two cover plates, the depth positioning member is mounted between the top ends of the two vertical plates, and the lateral positioning member is mounted on the inner sides of the two vertical plates.

[0020] The present application further provides a method for slotting by using the slotting machine of the above-mentioned embodiments, which comprises the following steps: 1. starting the driving mechanism to drive the two milling cutters to rotate at high speed; 2. holding the slotting machine by hand, and sleeving the positioning and guiding device into the cutting starting position of the plate; ① reference positioning: making the reference positioning member adhere to the end surface of the plate; ② lateral positioning: clamping the two side surfaces of the plate by the lateral positioning member; 3. pushing the slotting machine to move along the plate, and synchronously cutting the two side slots by the milling cutters; 4. stopping pushing when the depth positioning member abuts against the top surface of the plate; and 5. moving out the slotting machine to complete slotting.

[0021] The present application has the following beneficial effects:

[0022] The slotting machine of the present application solves the inherent defects of the traditional ALC partition wall plate U-shaped seat installation, and effectively overcomes the core deficiencies of the existing plate slotting machine in efficiency and applicability. The specific beneficial effects are as follows:

[0023] I. Synchronously complete double-sided slotting, double leap in operation efficiency and slot accuracy.

[0024] The present application adopts two parallel arranged milling cutters, which can simultaneously cut the clamping groove adapted to the U-shaped seat on both sides of the plate in a single operation, realizing "one-time advancement, double-sided grooving". In comparison, the existing plate slotting machine is only equipped with a single milling cutter, which needs to complete single-sided slotting after positioning on the workbench, and then reposition for secondary cutting. Not only does it increase the slotting time of a single plate, but it is also more likely to cause asymmetry of the two sides of the slot due to the deviation of the two positioning, which cannot meet the precise installation requirements of the U-shaped seat. The double-milling cutter design of the present application greatly improves the slotting efficiency, and the spacing error of the two sides of the slot is controlled within a very small range, which fundamentally solves the pain points of the existing equipment such as low efficiency and poor slot consistency.

[0025] II. Three-dimensional positioning and guidance to ensure stable slotting quality.

[0026] The present application innovatively sets up a positioning and guiding device composed of a reference positioning element, a depth positioning element and a lateral positioning element. The directional sliding space formed by the three elements constitutes a full-dimensional positioning system: the reference positioning element slides against the end face of the plate, providing an absolute stable axial reference; the depth positioning element directly limits the cutting depth, ensuring that the depth of each slot is completely uniform; the lateral positioning element clamps the two sides of the plate and slides along the cutting direction, effectively preventing the equipment from shifting laterally. The positioning design of the present application standardizes the slotting quality and fully meets the precise requirements of subsequent U-shaped seat installation.

[0027] III. Break away from the constraints of fixed equipment, adapt to the flexible operation requirements of the construction site.

[0028] The directional sliding space formed by the positioning and guiding device realizes autonomous guidance, completely breaking away from the dependence on the "fixed workbench + horizontal sliding mechanism" in the existing plate slotting machine, and the overall structure is more compact and the mobility is significantly improved. The existing equipment is bulky and can only process standardized plates in batches in the factory. In the face of the actual demand for on-site adaptation of large ALC partition wall plates, it is difficult to transport and cannot realize flexible operation, and it has high requirements for the space of the construction site and is difficult to deploy in narrow areas. The present application can be directly carried to the installation site by the operator, and the slotting can be completed on the spot without the need for transportation links, which adapts to various construction site environments and fully meets the construction rhythm of instant slotting.

[0029] Four, to eradicate the traditional installation defects, greatly reduce the subsequent construction cost.

[0030] The present application precisely controls the depth of the clamping groove through the depth positioning member, so that the two sides of the U-shaped clamping seat are completely below the plane of the plate after installation, and the surface can be leveled by only filling the conventional mortar. This design completely solves the problem of the U-shaped clamping seat exceeding the plane of the plate in the traditional slotless installation, avoids the protruding defects of the puttying process, and at the same time, does not need to increase the painting thickness as in the traditional way. The present application optimizes the construction process from the source, reduces the consumption of raw materials such as mortar, shortens the construction period, and significantly reduces the comprehensive construction cost.

[0031] The preferred embodiments of the present application and their beneficial effects will be further described in detail in conjunction with the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0032] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, and are used together with the following specific embodiments to explain the present application, but should not constitute a limitation on the present application. In the drawings:

[0033] Figure 1 is the use state of the slotting machine of the present application;

[0034] Figure 2 is a perspective view of the slotting machine of the present application;

[0035] Figure 3 is a front view of the slotting machine of the present application;

[0036] Figure 4 is a bottom view of the slotting machine of the present application;

[0037] Figure 5 is an exploded view of the slotting machine of the present application;

[0038] Figure 6 is an exploded view of the rack and driving mechanism of the slotting machine of the present application.

[0039] Markings in the figure: rack 1, milling cutter 2, driving mechanism 3, positioning guide device 4, plate 10, directional sliding space 40, U-shaped clamping seat 30, clamping groove 20, reference positioning member 41, depth positioning member 42, lateral positioning member 43, positioning wheel 431, connecting plate 432, positioning seat 433, battery 5, switch 6, handle 7, cover plate 11, vertical plate 12. DETAILED DESCRIPTION

[0040] The specific embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present application, and are not used to limit the present application.

[0041] Please refer to Figures 1 to 5The application provides a slotting machine, which comprises a rack 1, a milling cutter 2, a driving mechanism 3 and a positioning guide device 4. The milling cutter 2 is rotatably installed on the rack 1 and used for cutting and slotting a plate 10 (such as an ALC partition wall plate). The driving mechanism 3 is installed on the rack 1 and connected with the milling cutter 2, and used for driving the milling cutter 2 to rotate to realize a cutting motion. The positioning guide device 4 is installed on the rack 1 and forms a directional sliding space 40 matched with the thickness of the plate 10, and used for guiding the milling cutter 2 to directionally slide along a cutting position on the plate 10 to a specified cutting depth.

[0042] The slotting machine provided by the application has the advantages of solving the traditional installation defects of the U-shaped clamping seat 30, improving the efficiency, guaranteeing the quality, reducing the cost and enhancing the applicability, and comprehensively optimizing the construction process. Specifically, the beneficial effects of each aspect are as follows:

[0043] I. Solving the traditional installation defects: In the traditional construction, the U-shaped clamping seat 30 is directly sleeved on the ALC partition wall plate, which causes the two sides to exceed the plate surface, affecting the subsequent puttying or increasing the painting thickness. In the application, the positioning guide device 4 forms a directional sliding space 40 matched with the thickness of the plate 10, which can accurately guide the milling cutter 2 to slide along the preset cutting position to the specified depth, so that the slotting size is matched with the U-shaped clamping seat 30. After installation, the two sides of the U-shaped clamping seat 30 are lower than the plane of the plate 10, and after filling the gap with mortar, the whole is flat, completely solving the problem of the U-shaped clamping seat 30 exceeding the plate surface in the traditional installation, and ensuring the smooth development of the next process such as puttying and painting.

[0044] II. Improving the construction efficiency and quality stability: The driving mechanism 3 provides stable power for the milling cutter 2, and cooperates with the directional guidance of the positioning guide device 4 to realize rapid and standardized slotting. Compared with the traditional construction method without special equipment, the single-slot slotting time can be shortened to about 15 seconds, greatly improving the efficiency; at the same time, the directional sliding space 40 ensures the consistency of the depth and position of each slot, avoids the manual operation error, and guarantees the stability of the slotting quality, so that the installation effect of the U-shaped clamping seat 30 is uniform.

[0045] III. Reducing the construction cost: In the traditional way, because the U-shaped clamping seat 30 exceeds the plate surface, the wall painting thickness needs to be increased by about 30%, which leads to the increase of the consumption of raw materials such as mortar. The application realizes accurate slotting to hide the U-shaped clamping seat 30 in the slot, without the need to increase the painting thickness, which reduces the amount of raw materials; at the same time, the efficient construction process shortens the working hours and reduces the labor cost, realizing the reduction of the construction cost from the aspects of materials and time.

[0046] Four, enhance the construction convenience and adaptability: rack 1 integrates milling cutter 2, driving mechanism 3 and positioning guide device 4, forms the overall equipment with compact structure, facilitates the operation personnel to carry and use;The directional sliding space 40 of the positioning guide device 4 ensures stable directional sliding on the plate 10, ensures the smoothness of the cutting and grooving process, simple operation, can be used skillfully after short training.

[0047] In summary, the application fundamentally solves the traditional defects of ALC partition plate U-shaped seat 30 installation by the structural integration of rack 1, the efficient cutting of milling cutter 2 and driving mechanism 3, and the accurate guidance and adaptive design of positioning guide device 4, while realizing overall improvement in efficiency, quality, cost and applicability, and has significant practical value and economic value.

[0048] In the embodiment, the positioning guide device 4 includes a reference positioning member 41 for sliding against the end face of the plate 10, a depth positioning member 42 for limiting the cutting depth, and a lateral positioning member 43 for clamping the two side surfaces of the plate 10 and sliding in the cutting depth direction. The reference positioning member 41, the depth positioning member 42 and the lateral positioning member 43 form a directional sliding space 40. The milling cutter 2 is located in the directional sliding space 40 and is perpendicular to the positioning plane formed by the reference positioning member 41. In use, the reference positioning member 41 is attached to the end face of the plate 10. The distance between the depth positioning member 42 and the top surface of the plate 10 is the cutting depth. The lateral positioning member 43 is clamped on the two side surfaces of the plate 10 for positioning sliding. By applying external force to the rack 1, the positioning guide device 4 and the milling cutter 2 are pushed to slide in the cutting direction until the depth positioning member 42 abuts against the top surface of the plate 10. The high-speed rotating milling cutter 2 cuts the card slot 20 on the plate 10 during the sliding process.

[0049] The positioning guide device 4 is the core positioning component of the grooving machine of the application, which provides accurate and stable positioning and guidance protection for the U-shaped seat 30 slot cutting of the ALC partition plate through the cooperative action of the reference positioning member 41, the depth positioning member 42 and the lateral positioning member 43, and the directional sliding space 40 formed by the three, and has the following beneficial effects:

[0050] I. Achieve accurate positioning of cutting position: the reference positioning member 41 slides against the end face of the plate 10, providing a reliable reference for the entire cutting process, ensuring that the cutting position of the milling cutter 2 completely matches the installation requirements of the U-shaped seat 30, avoiding the slot deviation problem caused by ambiguous positioning in traditional construction, and ensuring the adaptability of the U-shaped seat 30 after installation with the plate 10 from the source.

[0051] II. Strictly control the cutting depth: the distance between the depth positioning member 42 and the top surface of the plate 10 directly determines the cutting depth. When the device is pushed to the depth positioning member 42 abutting the top surface of the plate 10, the cutting is automatically stopped, so that the depth of each groove is consistent and meets the design requirements. This design solves the problem of difficult control of cutting depth in traditional non-specialized equipment, ensuring that the two sides of the U-shaped seat 30 are accurately below the plane of the plate 10 after installation, laying the foundation for the subsequent process of leveling construction.

[0052] III. Prevent lateral deviation during cutting: the lateral positioning member 43 is clamped to the two side surfaces of the plate 10 and slides in the cutting depth direction, providing stable lateral support for the device and limiting the left and right swing through the clamping force. This design effectively avoids deformation or position deviation of the groove during cutting due to device shaking, ensuring the flatness of the two sides of the groove, making the U-shaped seat 30 installation stable and reliable after installation.

[0053] IV. Form a directional sliding space that fits the plate 10: the directional sliding space 40 formed by the reference positioning member 41, the depth positioning member 42 and the lateral positioning member 43 is adapted to the thickness of the plate 10, and the milling cutter 2 is perpendicular to the positioning plane of the reference positioning member 41, ensuring that the cutting direction is parallel to the two side surfaces of the plate 10, ensuring the stability and continuity of the cutting process, greatly improving the slotting efficiency.

[0054] In summary, the positioning and guiding device 4 ensures the quality of slotting from multiple dimensions such as position, depth and stability through the cooperative positioning and guiding action of multiple components, not only solving many defects of traditional construction, but also providing core support for efficient and precise operation of the device, which is the key to realizing hidden installation of the U-shaped seat 30 and optimizing the subsequent construction process.

[0055] The reference positioning member 41 is installed on the rack 1, the depth positioning member 42 is installed on the rack 1 and close to one end of the reference positioning member 41, and the positioning plane formed by the depth positioning member 42 is perpendicular to the positioning plane formed by the reference positioning member 41. The lateral positioning member 43 is installed on the rack 1 and located on both sides of the reference positioning member 41.

[0056] The reference positioning member 41, the depth positioning member 42 and the lateral positioning member 43 are the core components of the positioning and guiding device 4, which form a cooperative positioning mechanism through their own structural design and assembly relationship with the rack 1, providing key protection for the precise and efficient operation of the slotting machine, with the following beneficial effects:

[0057] I. Positioning reference effect of reference positioning member 41: The reference positioning member 41 is installed on the rack 1 and is in sliding contact with the end face of the plate 10 during use, thereby providing a stable axial reference for the entire cutting process. This design ensures that the relative position of the cutting start point of the milling cutter 2 and the end face of the plate 10 is always consistent, avoiding axial deviation of the slot position due to placement deviation of the plate 10 or equipment shaking, thereby fundamentally ensuring the position matching of the slot 20 of the U-shaped holder 30 and the end of the plate 10, and laying a foundation for the accurate installation of the U-shaped holder 30.

[0058] II. Precise depth control effect of depth positioning member 42: The depth positioning member 42 is installed on the rack 1 and is close to one end of the reference positioning member 41, and the positioning plane formed thereby is perpendicular to the positioning plane of the reference positioning member 41. This perpendicular structure design enables the spacing distance between the depth positioning member 42 and the top surface of the plate 10 to be directly converted into accurate control of the cutting depth - when the equipment slides to the point where the depth positioning member 42 abuts against the top surface of the plate 10, the cutting is automatically stopped, ensuring that the depth of each slot is completely uniform. This design solves the problem of large errors in the cutting depth relying on manual judgment in traditional construction, enabling the two sides of the U-shaped holder 30 to be strictly below the plane of the plate 10 after installation, thereby completely avoiding the phenomenon of the U-shaped holder 30 exceeding the plate surface due to inaccurate depth.

[0059] III. Lateral stability effect of lateral positioning member 43: The lateral positioning member 43 is installed on the rack 1 and is located on both sides of the reference positioning member 41, and is in clamped contact with the two side surfaces of the plate 10 and slides in the cutting direction during work. This symmetrical structure on both sides can provide uniform lateral clamping force for the equipment, effectively limiting the left-right swing of the equipment during cutting, and ensuring that the milling cutter 2 always cuts along the preset lateral path. At the same time, the position cooperation of the lateral positioning member 43 and the reference positioning member 41 further enhances the overall adhesion of the equipment and the plate 10, avoiding the occurrence of skew or uneven depth on both sides of the slot, ensuring the regularity of the slot, and enabling the U-shaped holder 30 to be installed stably and reliably after installation.

[0060] IV. Positioning closed loop effect of the three in cooperation: The reference positioning member 41, the depth positioning member 42, and the lateral positioning member 43 form a three-dimensional positioning closed loop covering the axial, depth, and lateral directions through assembly with the rack 1. The axial direction is referenced by the reference positioning member 41, the depth is controlled vertically by the depth positioning member 42, and the lateral direction is clamped symmetrically by the lateral positioning member 43. The cooperation of the three makes the directional sliding space 40 more adaptable to the plate 10. This cooperative mechanism not only ensures the accuracy of single-slot cutting, but also significantly improves the consistency of multi-slot cutting, greatly reduces the rework rate caused by slot deviation, and effectively shortens the single-slot processing time and improves the overall construction efficiency in cooperation with the high-speed cutting of the milling cutter 2.

[0061] In summary, the benchmark positioning member 41, the depth positioning member 42 and the lateral positioning member 43 realize all-around accurate positioning of the slotting of the plate 10 through the respective structural design and the assembly relationship with the rack 1, fundamentally solve various problems caused by inaccurate positioning in the installation of the traditional U-shaped clamping seat 30, provide core support for efficient and high-quality operation of the slotting machine, and have remarkable practical value.

[0062] In the embodiment, the benchmark positioning member 41 and the depth positioning member 42 are both flat plates, but are not limited thereto, for example, a slide rod can be used to form a positioning plane. The benchmark positioning member 41 and the depth positioning member 42 can be any structure that can form a positioning plane.

[0063] In the embodiment, the lateral positioning member 43 includes positioning wheels 431, and at least two rotatable positioning wheels 431 are arranged on each side of the benchmark positioning member 41. The distance between the positioning wheel 431 on one side of the benchmark positioning member 41 and the positioning wheel 431 on the other side is adapted to the thickness of the plate 10.

[0064] The lateral positioning member 43 further includes a connecting plate 432 and a positioning seat 433, one end of the connecting plate 432 is mounted on the rack 1, the other end is mounted with the positioning seat 433, and the positioning wheel 431 is rotatably mounted on the positioning seat 433. Each positioning wheel 431 is correspondingly mounted with one positioning seat 433, and each positioning seat 433 is correspondingly mounted with one connecting plate 432. The connecting plate 432 mounted on one side of the rack 1 is arranged in parallel with the connecting plate 432 mounted on the other side. The parallel connecting plates 432 have an elastic space, and the deformable characteristics of the elastic space enable the positioning wheels 431 on both sides to self-adaptively clamp the surfaces on both sides of the plate 10, thereby ensuring the stability of positioning.

[0065] The unique design of the lateral positioning member 43 in the present application realizes precise, stable and flexible technical advantages in the slotting and positioning of the plate 10 through the layout of the positioning wheels, the elastic adaptation structure and the cooperation of multiple components, and lays a solid foundation for efficient operation of the slotting machine, and has the following beneficial effects.

[0066] I. Precise adaptation to the thickness of the plate 10 to ensure the consistency of positioning: At least two rotatable positioning wheels 431 are arranged on each side of the benchmark positioning member 41, and the distance between the positioning wheels 431 on both sides is adapted to the thickness of the plate 10. During construction, the positioning wheels 431 roll along the surface of the plate 10, and the distance adaptation characteristics are used to firmly clamp the plate 10 from both sides to avoid the plate 10 from deviating during slotting. Compared with the traditional positioning structure without precise distance design, the relative position of the slot and the edge of the plate 10 is highly consistent, and the problems of slot skewing and mispositioning of the U-shaped clamping seat 30 caused by inaccurate lateral positioning are solved.

[0067] II. Elastic self-adaptive clamping, compatible with different working conditions: The lateral positioning member 43 realizes self-adaptive clamping through the combination of "connecting plate 432 + positioning seat 433 + positioning wheel 431" and the elastic space between the parallel connecting plates 432. When facing the board 10 with slight thickness difference (such as ALC partition board production tolerance) or the board 10 surface with slight unevenness, the elastic space allows the connecting plate 432 to deform slightly, so that the positioning wheel 431 always adheres to the two sides of the board 10. It not only ensures the stability of the clamping force and avoids the loosening of the board 10, but also does not damage the board 10 due to rigid clamping, greatly improving the adaptability of the equipment to different construction scenes and different boards 10, and reducing the positioning failure problem caused by the difference of the board 10.

[0068] III. Modular assembly, strengthen structural stability: The modular design of "one positioning wheel 431 corresponds to one positioning seat 433 and one connecting plate 432" makes the stress of each component more uniform. During assembly, the installation accuracy of each positioning wheel can be independently controlled, avoiding the cumulative error caused by too many integrated components. In work, the modular structure disperses the lateral force to multiple connecting plates and positioning seats, reducing the load of individual components and improving the overall structural durability. Compared with the integrated and difficult-to-disassemble lateral positioning structure, this design is more convenient for later maintenance, and the positioning wheel can be quickly replaced after wear, ensuring the long-term stable operation of the equipment.

[0069] IV. Reduce friction, ensure smooth operation: The positioning wheel 431 rolls on the surface of the board 10, which greatly reduces the friction compared to sliding contact forms such as sliders and rigid plates. When the operator pushes the equipment, there is no need to overcome a large sliding resistance, which is more labor-saving and can easily control the slotting pace. Especially for long board 10 slotting operations, it can reduce physical exertion and improve construction efficiency; at the same time, the heat generated by rolling friction is less, avoiding damage to the surface of the board 10 due to friction heat, and ensuring the integrity of the board 10.

[0070] In summary, the lateral positioning member 43 solves the problems of traditional slotting machines, such as easy deviation, difficult to adapt to different boards 10, and structure easily damaged, from four dimensions of positioning accuracy, working condition compatibility, structural stability, and smooth operation, through the precise spacing adaptation of the positioning wheel layout, the elastic self-adaptive clamping structure, the modular assembly design, and the rolling design of the positioning wheel. It provides a stable lateral reference for the precise slotting of the milling cutter 2, greatly improves the size consistency and position accuracy of the U-shaped clamping seat 30 clamping groove 20, and helps the whole machine to realize efficient and high-quality board 10 slotting operations, with practical value and economic value (reducing rework rate and prolonging equipment life).

[0071] It can be understood that the lateral positioning member 43 is not limited to the above structure. For example, the lateral positioning member 43 can use two parallel arranged clamping plates to clamp the two side surfaces of the board 10. As long as the lateral positioning member 43 can realize the sliding positioning of the two side surfaces of the board 10, it can be used.

[0072] In this embodiment, two milling cutters 2 are installed in parallel, and each milling cutter 2 is used to cut a clamping groove 20 on the surface of the plate 10. The milling cutter 2 adopts a spiral-shaped cutter head.

[0073] In this embodiment, the milling cutter 2 adopts a double-parallel installation design and is equipped with a spiral-shaped cutter head, which cooperates with the overall structure of the equipment and exhibits significant advantages in terms of slotting efficiency, groove quality, and adaptability of the plate 10, as follows:

[0074] I. Double-parallel milling cutters work synchronously, greatly improving construction efficiency: Two milling cutters 2 are installed in parallel and can simultaneously cut clamping grooves 20 on the surfaces of the plate 10 on both sides, achieving "one-time advancement and double-side slotting". Compared with the traditional method of cutting grooves on both sides of the plate 10 twice, the steps of positioning and adjusting twice are saved, and the slotting time of a single plate 10 is directly halved. Especially in batch ALC partition wall construction, the process cycle can be significantly shortened, and the overall construction progress can be improved. At the same time, synchronous slotting on both sides can avoid the problem of asymmetric slot positions caused by two operations, ensuring that the positions and depths of the clamping grooves 20 on both sides strictly correspond, providing a basis for the accurate installation of the U-shaped clamping seat 30.

[0075] II. Spiral-shaped cutter head optimizes cutting performance and guarantees groove quality:

[0076] Smooth cutting, reducing damage to the plate 10: The cutting edge of the spiral-shaped cutter head is distributed in a spiral line, and when it contacts the plate 10, it is a gradual cutting, rather than the instantaneous impact cutting of a straight blade cutter head, which can significantly reduce vibration and impact force during cutting. For ALC partition walls with high brittleness, it can effectively avoid problems such as cracking and edge collapse of the plate 10 caused by impact, ensure the smoothness of the slot edge, and reduce the need for later repair work.

[0077] Smooth chip removal, avoiding blockage in the slot: The spiral structure forms an axial chip removal channel during rotation, and the chips generated during cutting can be quickly removed outside the slot along the spiral blade, avoiding the accumulation of chips in the slot, which affects the continuous cutting of the milling cutter, or causes deformation of the slot due to the extrusion of the chips. This feature ensures the continuity of the slotting process and further improves the construction efficiency.

[0078] Smooth slot wall, reducing the difficulty of subsequent processes: The continuous cutting trajectory of the spiral cutter head makes the surface roughness of the slot wall lower, which is more convenient for the adhesion and solidification of the subsequent mortar filling compared with the rough surface after cutting by a straight blade cutter head, reduces the generation of gaps, and ensures the stability of the overall structure after the installation of the U-shaped clamping seat 30.

[0079] III. Reinforce the overall adaptability in cooperation with the positioning guide device: The parallel layout of the double milling cutter forms a precise fit with the lateral positioning element 43 (especially the positioning wheel 431) of the positioning guide device 4: the spacing of the two-side milling cutter is adapted to the clamping spacing of the positioning wheel 431, ensuring that the milling cutter can always be aligned with the preset cutting position when the positioning wheel guiding device slides stably along the plate 10, avoiding slot deviation caused by equipment deviation. At the same time, the low vibration characteristics of the spiral cutter head cooperate with the rolling guidance of the positioning wheel, reducing the "chatter" in the equipment operation, further improving the symmetry and consistency of double-sided slotting, and being more flexible in adapting to different thickness and specifications of ALC partition wall plates.

[0080] In summary, the double-parallel installation design of the milling cutter 2 and the spiral-shaped cutter head structure solve the problems of low efficiency, poor slot type, and easy damage to the plate 10 when using traditional single cutter and straight blade cutter head slotting from the dimensions of efficiency, quality, and adaptability. In cooperation with other parts of the equipment, it realizes efficient, accurate, and stable plate 10 slotting operation, provides key protection for the hidden installation of the U-shaped seat 30 and the smooth development of subsequent processes, and has significant practical value.

[0081] In this embodiment, the driving mechanism 3 uses two motors, and each motor is connected to one milling cutter 2. Each milling cutter 2 is driven by an independent motor, which can ensure that both sides of the milling cutter obtain balanced and stable power. Compared with the design of a single motor driving two milling cutters through a transmission mechanism (such as gears or belts), it can avoid the speed difference between the two milling cutters caused by uneven transmission loss - when one side of the transmission component is worn or loose, it will not affect the running state of the other side of the milling cutter. This feature ensures that the cutting speed and cutting force of the two sides of the plate 10 are completely consistent, making the slot depth and width size highly uniform, avoiding the problem of one-sided slot being too shallow, too wide, or rough due to uneven power, and providing a precise size basis for the symmetrical installation of the U-shaped seat 30. Double motors driving double milling cutters can provide sufficient and continuous power to each spiral-shaped cutter head, ensuring cutting stability at high speed. The gradual cutting of the spiral cutter head requires stable speed support, and independent motors can avoid speed fluctuations caused by load changes (such as cutting hard impurities inside the plate 10), ensuring smooth chip removal and smooth slot walls. This "double motor + double milling cutter" matching design enables the efficient operation mode of "one-time advancement, double-side slotting" to be realized stably, further improving construction efficiency. It can be understood that the driving mechanism 3 can also use one motor to drive two milling cutters 2 synchronously through a transmission mechanism.

[0082] The slotting machine further comprises a power supply device, which is a battery 5 for supplying power to the driving mechanism 3. The battery 5 and the positioning guide device 4 are respectively installed on the two side surfaces of the rack 1. The battery 5 is provided with a charging interface. A switch 6 for controlling the start and stop of the driving mechanism 3 is installed on the circuit connected between the battery 5 and the driving mechanism 3. In addition, the power supply device can also directly supply power in the form of a power cord and a plug.

[0083] The slotting machine further comprises two handles 7 installed at both ends of the rack 1. The slotting machine is moved by pushing it with both hands holding the two handles 7 to achieve cutting and slotting.

[0084] The slotting machine is provided with two handles 7 at both ends of the rack 1, which are held by the operator to move the device to achieve cutting and slotting. This design cooperates with the overall structure of the machine, and has obvious advantages in operation convenience, force stability, safety guarantee, etc., as follows:

[0085] I. Two hands cooperate to exert force, improving operation stability and precision: The two handles 7 are respectively installed at both ends of the rack 1, and the operator can stably control the device by holding it with both hands. When pushing the slotting machine, the two hands can more accurately control the pushing speed and direction of the device, avoiding the tilting or deviation of the device caused by single-handed operation. Especially when slotting along the length direction of the plate 10, balanced force exerted by both hands can ensure that the device moves smoothly along a straight line all the time, and the milling cutter 2 can cut strictly according to the preset path under the directional guidance of the positioning guide device 4, further ensuring the straightness and position accuracy of the slot, and reducing the slot type deviation caused by unstable operation.

[0086] II. Ergonomic design to reduce operator fatigue: The operation mode of holding both ends of the handle 7 with both hands is more in line with the natural force exertion habit of the human body, which can distribute the force to both hands and arms, avoiding the single limb bearing excessive load caused by single-handed operation. In long-term and batch slotting operations, it can effectively reduce the muscle fatigue of the operator, prolong the continuous operation time, and improve the overall construction efficiency. At the same time, the reasonable design of handle spacing and position can make the operator maintain a comfortable operating posture, reduce the operation mistakes caused by improper posture, and provide protection for efficient and stable construction.

[0087] III. Cooperate with the overall structure of the machine to strengthen the safety performance: The two handles 7 are installed at both ends of the rack 1, and during operation, the operator's hands are kept at a safe distance from the high-speed rotating parts such as the milling cutter 2, reducing the risk of accidental touch. At the same time, the way of holding with both hands makes the operator have a stronger control over the device. In the event of an emergency (such as abnormal plate 10, intensified device vibration, etc.), the operator can quickly apply a reverse force to stop the device from moving, avoiding safety accidents or device damage in time, and improving the safety of the operation.

[0088] In summary, the two handles 7 installed at both ends of the rack 1 improve the stability and precision of operation through the coordinated force of both hands, reduce the operation fatigue in line with ergonomics, and strengthen the safety performance in cooperation with the overall structure.

[0089] In this embodiment, please refer to Figure 6 , the rack 1 includes two cover plates 11 and two vertical plates 12. The space between the two cover plates 11 is used to accommodate the driving mechanism 3, and the two cover plates 11 clamp and fix the driving mechanism 3. The two vertical plates 12 are respectively installed vertically at both ends of the two cover plates 11 as a whole, forming a "U" shaped structure. Two handles 7 are respectively installed on the outer side of the two vertical plates 12. The connecting plate 432 is installed on the inner side of the two vertical plates 12. The reference positioning member 41 is installed on the whole of the two cover plates 11. The depth positioning member 42 is installed between the top ends of the two vertical plates 12.

[0090] The rack 1 adopts the combined structure of two cover plates 11 and two vertical plates 12, which provides a stable installation foundation for each component of the slotting machine through scientific layout design, and shows significant advantages in structural strength, space utilization and cooperative work, as follows:

[0091] First, the "cover plate + vertical plate" combined structure enhances the stability of the structure and ensures the reliable operation of the equipment. The two cover plates 11 and the two vertical plates 12 form a "U" shaped structure. This kind of closed frame design greatly improves the overall rigidity of the rack 1. Compared with the rack formed by bending a single plate 10, the "U" shaped structure can more evenly disperse the vibration and impact force generated during the operation of the equipment, especially when the driving mechanism 3 drives the milling cutter 2 to rotate at high speed for cutting, which can effectively prevent the rack 1 from deforming or shaking, and provide a solid support for the stable work of each component. At the same time, the vertical plate 12 is installed vertically at both ends of the cover plate 11, which further enhances the torsional performance of the structure and ensures that the equipment can maintain good structural accuracy after long-term high-intensity operation.

[0092] Second, optimize the space layout to improve the rationality and compactness of component installation. The space between the two cover plates 11 is specially used to accommodate the driving mechanism 3, and the driving mechanism 3 is positioned by clamping and fixing. This can not only ensure the firm installation of the driving mechanism 3, but also avoid occupying too much space by additional fixing members, making the connection between the driving mechanism 3 and the milling cutter 2 more direct and reducing the loss in the power transmission process. The two vertical plates 12 serve as the installation carriers of the handles 7 and the connecting plate 432. The handles 7 installed on the outer side are convenient for the operator to hold, and the connecting plate 432 installed on the inner side makes the lateral positioning member 43 closer to the plate 10, improving the positioning accuracy. In addition, the reference positioning member 41 is installed on the whole of the two cover plates 11, and the depth positioning member 42 is installed between the top ends of the two vertical plates 12. Each component is reasonably distributed around the core working area, making the overall structure compact and reducing unnecessary space waste, which facilitates the flexible movement of the equipment in narrow construction scenes.

[0093] Three, the closer coordination of each component, improve the efficiency of the machine operation: the structural design of the rack 1 creates favorable conditions for the coordinated work of each component. The driving mechanism 3 is stably clamped by the cover plate 11, which ensures that it can provide continuous and stable power for the milling cutter 2; the depth positioning element 42 at the top of the vertical plate 12 can accurately limit the cutting depth, and cooperate with the reference positioning element 41 on the cover plate 11 to form a complete positioning system; the lateral positioning element 43 connected by the connecting plate 432 inside the vertical plate 12 can stably clamp the plate 10 from both sides, and cooperate with the handle 7 to push the equipment to move, so that the milling cutter 2 strictly follows the positioning guide to cut. The orderly layout of each component on the rack 1 makes the power output, positioning guide, operation control and other functions of the equipment form an organic whole, greatly improving the operation accuracy and efficiency of the whole machine.

[0094] Four, easy to produce and maintain, reduce cost: the structure of the two cover plates 11 and the two vertical plates 12 is simple, easy to manufacture, and can improve production efficiency and reduce manufacturing cost through standardized production. At the same time, the installation position of each component on the rack 1 is clear, and it is convenient to disassemble and replace. When a component fails, the rack 1 does not need to be disassembled as a whole, and the maintenance or replacement can be quickly completed, reducing the downtime of the equipment and reducing maintenance costs.

[0095] In summary, the rack 1 reasonably combines the two cover plates 11 and the two vertical plates 12, not only has excellent structural stability and space utilization, but also promotes the close coordination of each component, and is convenient for production, manufacturing and maintenance. This structural design provides key support for the slotting machine to realize efficient, accurate and stable operation, and cooperates with the driving mechanism 3, the milling cutter 2, the positioning guide device 4 and the handle 7 to further improve the overall performance and practical value of the equipment.

[0096] The slotting machine provided by the present application can realize accurate slotting of the plate 10 (such as ALC partition plate), and the slotting method is based on the cooperation of each component of the equipment, and the specific steps are as follows:

[0097] I. Start the driving mechanism 3 to drive the milling cutter 2 to rotate at high speed to provide power for cutting. At this time, the two milling cutters 2 rotate synchronously, preparing for cutting operation.

[0098] II. The operator holds the slotting machine with both hands, puts the positioning guide device 4 into the cutting starting position of the plate 10, and makes the milling cutter 2 align with the cutting starting position on the plate 10. The specific positioning process of the positioning guide device 4 is as follows:

[0099] Reference positioning: adjust the position of the slotting machine so that the reference positioning piece 41 of the positioning guide device 4 adheres to the end face of the plate 10, thereby serving as the axial positioning reference to ensure that the cutting position of the milling cutter 2 and the relative position of the end of the plate 10 meet the preset requirements.

[0100] Lateral positioning: operate the slotting machine so that the positioning wheel 431 of the lateral positioning piece 43 of the positioning guide device 4 contacts the two side surfaces of the plate 10. Since the connecting plates 432 of the lateral positioning piece 43 are arranged in parallel and have elastic space between them, the positioning wheel 431 will adaptively clamp the two sides of the plate 10, and use its rotatable characteristics to provide stable lateral guidance for the device to slide along the plate 10, preventing the device from shifting laterally during cutting.

[0101] Three, the operator slowly pushes the slotting machine to move along the slotting depth direction of the plate 10. During the movement, the high-speed rotating milling cutter 2 begins to contact and cut the plate 10.

[0102] Four, as the device moves, the depth positioning piece 42 of the positioning guide device 4 gradually approaches the top surface of the plate 10. When the depth positioning piece 42 abuts against the top surface of the plate 10, it indicates that the milling cutter 2 has cut to the preset depth, and the operator stops pushing the device.

[0103] Five, turn off the drive mechanism 3 to stop the rotation of the milling cutter 2, and move the slotting machine away from the plate 10 to complete a slotting operation. At this time, the plate 10 has been cut to form a clamping groove 20 that meets the size requirements.

[0104] Through the above slotting method, the rack 1, milling cutter 2, drive mechanism 3 and positioning guide device 4 of the slotting machine work together to quickly and accurately cut the clamping groove 20 on the plate 10, providing convenience for the subsequent installation of the U-shaped clamping seat 30, and effectively improving the construction efficiency and quality.

[0105] The slotting machine of the present application realizes precise slotting of the plate 10 (such as ALC partition wall plate) through the coordinated operation of the rack 1, milling cutter 2, drive mechanism 3, positioning guide device 4 and handle 7, and the specific working principle is as follows:

[0106] Before starting the device, the plate 10 to be processed needs to be placed stably to ensure that the surface is free of obvious protrusions or impurities. At this time, the "U" shaped structure of the rack 1 provides stable support for the components, the two motors of the drive mechanism 3 (two motors) clamped between the two cover plates 11 are in a standby state, the two milling cutters 2 (spiral-shaped cutting heads) connected by the two motors are not in contact with the plate 10, and the components of the positioning guide device 4 are in the initial position: the reference positioning piece 41 has not adhered to the end face of the plate 10, the depth positioning piece 42 maintains a certain distance (which is preset as the required cutting depth) from the top surface of the plate 10, and the positioning wheel 431 of the lateral positioning piece 43 is not in contact with the two sides of the plate 10.

[0107] After starting the device, the two motors of the driving mechanism 3 operate synchronously, respectively driving the corresponding milling cutter 2 to rotate at high speed, providing power for cutting and grooving. The operator holds the handle 7 installed on the outer side of the vertical plate 12 at both ends of the rack 1 with both hands, aligns the device with the position of the plate 10 to be grooved, and makes the reference positioning piece 41 of the positioning and guiding device 4 adhere to the end face of the plate 10, which serves as the axial positioning reference. Then, the position of the device is adjusted so that the positioning wheel 431 of the lateral positioning piece 43 contacts the surfaces on both sides of the plate 10. Since there is elastic space between the parallel arranged connecting plates 432, the positioning wheel 431 will adaptively clamp the plate 10, and by utilizing its rotatable characteristics, it ensures that the device can smoothly slide along the surface of the plate 10 while limiting the device from deviating laterally.

[0108] During the process of the operator pushing the handle 7 to move the device along the length direction of the plate 10, the high-speed rotating milling cutter 2 begins to contact and cut the plate 10. At this time, the reference positioning piece 41 slides against the end face of the plate 10, ensuring that the cutting position of the milling cutter 2 is always consistent with the relative position of the end of the plate 10; the positioning wheel 431 of the lateral positioning piece 43 rolls along the two sides of the plate 10, cooperating with the elastic clamping force to prevent the device from deviating laterally during sliding, ensuring that the milling cutter 2 cuts along the preset lateral path; the depth positioning piece 42 gradually approaches the top surface of the plate 10 as the device moves, and when the depth positioning piece 42 abuts against the top surface of the plate 10, it indicates that the milling cutter 2 has cut to the preset depth. The operator stops pushing the device, completing a grooving operation.

[0109] During this process, the milling cutter 2 with a spiral-shaped cutter head reduces the impact on the plate 10 through progressive cutting when rotating at high speed, and simultaneously utilizes the spiral structure to discharge the cutting debris along the axial direction, avoiding blockage in the groove; the two milling cutters 2 operate in parallel and simultaneously cut the clamping groove 20 on both surfaces of the plate 10, achieving "one-time advancement, double-side grooving". The cover plate 11 and the vertical plate 12 of the rack 1 are stably supported by the structure, ensuring that the driving mechanism 3, the milling cutter 2, and the positioning and guiding device 4 do not shake or deform during cutting, and guaranteeing the precision of the coordinated cooperation of the components.

[0110] Finally, through the orderly operation of the above components, the grooving machine cuts the clamping groove 20 on the plate 10 that meets the size requirements (depth, width, and position precision), providing an adaptive groove for the subsequent installation of the U-shaped clamping seat 30, meeting the construction requirements.

[0111] In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying importance; the words "bottom" and "top", "inner" and "outer" respectively refer to the direction towards or away from a particular component geometry.

[0112] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "communication", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly communicated, or it can be indirectly communicated through an intermediate medium, it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0113] The above is only the preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A slotter, characterized in that, The application relates to a double-milling cutter for cutting grooves on both sides of a plate, which comprises a rack (1), milling cutters (2), a driving mechanism (3) and a positioning and guiding device (4). The two milling cutters (2) are arranged in parallel and rotatably installed on the rack (1) for cutting grooves (20) on both sides of the plate (10) simultaneously. The driving mechanism (3) is installed on the rack (1) and connected with the milling cutters (2) for driving the milling cutters (2) to rotate. The positioning and guiding device (4) is installed on one side of the rack (1) close to the milling cutters (2). The positioning and guiding device (4) comprises a reference positioning member (41), a depth positioning member (42) and a lateral positioning member (43). The reference positioning member (41) is used for slidingly abutting the end face of the plate (10). The depth positioning member (42) is used for limiting the cutting depth. The lateral positioning member (43) is used for clamping the surfaces on both sides of the plate (10) and can slide along the cutting depth direction. The reference positioning member (41), the depth positioning member (42) and the lateral positioning member (43) form a directional sliding space (40) for guiding the milling cutters (2) to directionally slide to the specified cutting depth along the cutting position on the plate (10). The axes of the two milling cutters (2) are perpendicular to the positioning plane formed by the reference positioning member (41). The milling cutters (2) adopt spiral-shaped cutter heads. The reference positioning member (41) is installed on the rack (1). The depth positioning member (42) is installed on the rack (1) and close to one end of the reference positioning member (41). The positioning plane formed by the depth positioning member (42) is perpendicular to the positioning plane formed by the reference positioning member (41). The lateral positioning member (43) is installed on the rack (1) and located on both sides of the reference positioning member (41). The lateral positioning member (43) comprises positioning wheels (431). At least two rotatable positioning wheels (431) are arranged on both sides of the reference positioning member (41). The spacing between the positioning wheel (431) on one side of the reference positioning member (41) and the positioning wheel (431) on the other side is matched with the thickness of the plate (10). The lateral positioning member (43) further comprises connecting plates (432) and positioning seats (433). One end of the connecting plate (432) is installed on the rack (1), and the other end is installed with the positioning seat (433). The positioning wheel (431) is rotatably installed on the positioning seat (433). One positioning seat (433) is correspondingly installed for each positioning wheel (431). One connecting plate (432) is correspondingly installed for each positioning seat (433). The connecting plate (432) installed on one side of the rack (1) is arranged in parallel with the connecting plate (432) installed on the other side. The parallel connecting plates (432) have elastic spaces therebetween for making the positioning wheels (431) on both sides to self-adaptively clamp the surfaces on both sides of the plate (10).

2. The slitter according to claim 1, characterized in that, The driving mechanism (3) adopts two motors. Each motor is connected with one milling cutter (2).

3. The slitter as claimed in claim 1, characterized in that Two handles (7) are installed on both ends of the frame (1) to push the frame to move for cutting and slotting by hands.

4. The slitter as claimed in claim 1, characterized in that A power supply device is also included, which is a battery (5) to supply power to the driving mechanism (3); the battery (5) and the positioning guide device (4) are respectively installed on both sides of the frame (1).

5. The slitter as claimed in claim 1, wherein, The frame (1) is a "N" shaped structure, which is composed of two cover plates (11) and two vertical plates (12); the space to accommodate the driving mechanism (3) is formed between the two cover plates (11), and the two vertical plates (12) are installed vertically on both ends of the cover plates (11), and the handle (7) is installed on the outside of the vertical plate (12).

6. The slitter as claimed in claim 5, characterized in that The reference positioning member (41) is installed on the whole of the two cover plates (11), the depth positioning member (42) is installed between the top ends of the two vertical plates (12), and the lateral positioning member (43) is installed on the inside of the two vertical plates (12).

7. A method of grooving using the groover according to any one of claims 1 to 6, characterized in that, The steps include: I. Start the driving mechanism (3) to drive the two milling cutters (2) to rotate at high speed; II. Hold the slotting machine by hand, and put the positioning guide device (4) into the cutting starting position of the plate (10): ① Reference positioning: make the reference positioning member (41) adhere to the end face of the plate (10); ② Lateral positioning: clamp the two side surfaces of the plate (10) through the lateral positioning member (43); III. Push the slotting machine to move along the plate (10), and the milling cutter (2) cuts the two side slots (20) synchronously; IV. When the depth positioning member (42) abuts against the top surface of the plate (10), stop pushing; V. Move out the slotting machine to complete the slotting.

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