An intelligent wall slotting device and its usage method

Abstract

The present invention relates to the technical field of building construction, and specifically discloses an intelligent wall slotting device and a usage method; the slotting device includes a moving base, a vertical frame arranged vertically and installed on the moving base, a sliding frame that moves linearly vertically and is slidably matched with the vertical frame, a vertical driving device for driving the sliding frame to move vertically, a cutting device installed on the sliding frame, a dust prevention device installed on the moving base and used in cooperation with the cutting device, and a control box installed on the vertical frame and connected to the dust prevention device, the vertical driving device, and the cutting device respectively. And the usage method is disclosed. The present invention can effectively realize slotting of slots with different lengths and widths, and has a simple structure and strong practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and more specifically, to an intelligent wall slotting device and a using method thereof. Background Art

[0002] During the construction of building water and electricity installation projects, when installing conduits concealedly, it is necessary to slot the wall. Since the number of wall slots is large, when using a hand-held cutting machine or chiseling manually for slotting, it is time-consuming and laborious. Due to the large manual workload and the complex environment inside the building in the construction site, it is impossible to ensure the straightness of the slots. Sometimes the floor height of the building is as high as 3 - 4 meters, and the operating height is high, requiring working at heights, making it more difficult for workers to operate and it is not easy to ensure safety. When using a hand-held cutting machine for slotting, there is a large amount of dust at the site, and workers are prone to occupational diseases.

[0003] In the prior art, mechanical equipment is also used for slotting. However, the depth and width of the slotting cannot be adjusted during the slotting process as needed, which cannot meet the on-site slotting requirements, resulting in low slotting efficiency; at the same time, the rising height is limited and cannot meet the usage requirements of the existing building floor height. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an intelligent wall slotting device and a using method thereof;

[0005] The solution adopted by the present invention to solve the technical problem is:

[0006] An intelligent wall slotting device, the slotting device includes a moving base, a vertical frame arranged vertically and installed on the moving base, a sliding frame moving linearly vertically and slidingly matched with the vertical frame, a vertical driving device for driving the sliding frame to move vertically, a cutting device installed on the sliding frame, a dust-proof device installed on the moving base and used in cooperation with the cutting device, and a control box installed on the vertical frame and respectively connected to the dust-proof device, the vertical driving device, and the cutting device.

[0007] In some possible implementation manners,

[0008] The vertical frame includes a first vertical frame vertically installed on the moving base, a second vertical frame arranged parallel to the first vertical frame, a sliding table slidingly matched with the first vertical frame and connected to the second vertical frame, and a sliding table driving device for driving the sliding table to move linearly vertically; the sliding frame is slidingly matched with the second vertical frame, and the cutting device is arranged on the side of the sliding frame away from the second vertical frame; a distance measuring instrument for measuring the distance between the sliding frame and the floor is arranged on the sliding frame.

[0009] In some possible implementation manners,

[0010] The vertical driving device includes a vertical lead screw arranged vertically and mounted on the second vertical frame, a vertical driving motor drivingly connected to the vertical lead screw, and a lead screw nut mounted on the sliding frame and threadedly engaged with the vertical lead screw.

[0011] In some possible implementation manners,

[0012] A second chute is provided on the second vertical frame, and a second slider is provided on the sliding frame and is used in cooperation with the second chute; the longitudinal direction of the second chute is arranged vertically.

[0013] In some possible implementation manners,

[0014] The slide table driving device has the same structure as the vertical driving device, and includes a slide table lead screw arranged vertically and mounted on the first vertical frame, a slide table driving motor drivingly connected to the slide table lead screw, and a nut mounted on the slide table and threadedly engaged with the slide table lead screw;

[0015] A first chute is provided on the first vertical frame, and a first slider is provided on the slide table and is used in cooperation with the first chute; the longitudinal direction of the first chute is arranged vertically.

[0016] In some possible implementation manners,

[0017] The cutting device includes a rotating shaft, two groups of blades sleeved on the rotating shaft and arranged in parallel, a housing sleeved outside the blades and rotatably engaged with both ends of the rotating shaft, and a driving device drivingly connected to the rotating shaft; an opening for the blade to pass through is provided on the housing.

[0018] In some possible implementation manners,

[0019] A telescopic member arranged horizontally is provided on the housing, and the telescopic member is perpendicular to the rotating shaft.

[0020] In some possible implementation manners,

[0021] The dust-proof device includes a water tank mounted on the moving base, a water pump mounted in the water tank, a hose connected to the water pump and the other end of which is mounted on the housing, and a nozzle mounted on the outlet of the hose and spraying water on the blade.

[0022] On the other hand:

[0023] The present invention provides a usage method of a wall intelligent grooving device, which specifically includes the following steps:

[0024] Step S1: Move the grooving device to the front of the position on the wall to be grooved;

[0025] Step S2: Preparation before grooving;

[0026] Adjust the horizontal distance between the end of the telescopic rod near the wall and the blade on the side near the wall according to the grooving depth;

[0027] Step S3: Control the cutting device, dust-proof device, and vertical driving device to start grooving;

[0028] Step S4: The grooving is completed.

[0029] In some possible implementation manners,

[0030] The specific steps of the said step S3 include the following steps:

[0031] Step S31: Start the cutting device to perform wall grooving cutting. At the same time, turn on the water pump and sprinkle water on the blade through the nozzle;

[0032] Step S32: The construction worker pushes the entire grooving device to move towards the side near the wall until the end of the telescopic rod near the wall abuts against the wall, and then stops pushing;

[0033] Step S33: Drive the sliding frame to move vertically through the vertical driving device to drive one end of the cutting device to perform grooving;

[0034] When the cutting device moves to the top of the vertical frame two and the grooving is still not completed; drive it vertically through the slide table driving device to drive the vertical frame two and the cutting device to move until the grooving ends.

[0035] Compared with the prior art, the beneficial effects of the present invention:

[0036] Through the cooperation of the first vertical frame, the second vertical frame, the slide table, and the slide table driving device, the present invention effectively realizes grooving on a wall with a grooving length much greater than the length of the first vertical frame; compared with the prior art, the grooving size of this device can be longer;

[0037] By setting a rangefinder, the present invention effectively monitors the grooving length in real time to avoid the situation where the grooving length does not meet the requirements;

[0038] By setting two groups of blades on the rotating shaft, which can be adjusted according to the grooving width before use, the present invention ensures that the width of the grooved slot meets the requirements;

[0039] By setting a telescopic rod on the outer shell; through the setting of the telescopic rod, the depth of the blade entering the wall can be effectively controlled, so as to realize the control of the grooving depth;

[0040] The present invention has a simple structure and strong practicability. Description of the Drawings

[0041] Figure 1 It is a side view of the present invention;

[0042] Figure 2 Schematic diagram of the connection relationship among the first vertical frame, the sliding table, and the sliding table driving device in the present invention;

[0043] Figure 3 Schematic diagram of the connection relationship among the second vertical frame, the sliding frame, and the vertical driving device in the present invention;

[0044] Figure 4 Schematic diagram of the structures of the blade, the rotating shaft, the outer shell, the telescopic member, and the nozzle in the present invention;

[0045] Wherein: 1. Moving base; 2. Sliding frame; 3. Vertical driving device; 31. Vertical lead screw; 32. Vertical driving motor; 4. Cutting device; 41. Blade; 42. Rotating shaft; 43. Outer shell; 5. Vertical frame; 51. First vertical frame; 52. Second vertical frame; 53. Sliding table; 54. Sliding table driving device; 541. Sliding table lead screw; 542. Sliding table driving motor; 6. Dust-proof device; 61. Nozzle; 7. Telescopic member; 8. Control box; 9. Handrail; 10. Rangefinder. Detailed implementation manners

[0046] In the present invention, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. The "first", "second" and similar terms mentioned in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "one" do not indicate a quantity limitation, but indicate that there is at least one. In the implementation of this application, "and / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In the description of the embodiments of this application, unless otherwise stated, the meaning of "a plurality" refers to two or more. For example, a plurality of positioning columns means two or more positioning columns. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] The present invention will be described in detail below.

[0048] As Figures 1 - 4 shown:

[0049] An intelligent wall slotting device, the slotting device includes a moving base 1, a vertical frame 5 arranged vertically and installed on the moving base 1, a sliding frame 2 moving linearly vertically and slidingly cooperating with the vertical frame 5, a vertical driving device 3 for driving the sliding frame 2 to move vertically, a cutting device 4 installed on the sliding frame 2, a dust-proof device 6 installed on the moving base 1 and cooperating with the cutting device 4, and a control box 8 installed on the vertical frame 5 and connected to the dust-proof device 6, the vertical driving device 3, and the cutting device 4 respectively.

[0050] The moving base 1 includes a base, a roller set installed on the base, and a brake for controlling the moving base 1 to stop moving.

[0051] During use, align the cutting device 4 with the slotting part of the wall, turn on the dust-proof device 6 and the cutting device 4 to perform wall slotting. When the slotting depth at the slotting position of the cutting device 4 meets the requirements at this time, the vertical driving device 3 controls the sliding frame 2 to move along the length direction of the vertical frame 5, so as to control the cutting device 4 to move along the length direction of the vertical frame 5 and perform slotting according to the slotting length direction. During the slotting process, the dust collection device will process the dust generated during the slotting of the cutting device 4 to avoid environmental pollution caused by the dust;

[0052] Preferably, the cutting device 4 is installed on the sliding frame 2 through a fixed bracket. A card slot is provided on the fixed bracket, and a groove cooperating with the card slot is provided on the cutting device 4.

[0053] In the present invention, the control of the dust-proof device 6, the cutting device 4, and the vertical driving device 3 is completed through the control box 8 to achieve intelligence.

[0054] In some possible implementation manners, in order to enable the device to construct and slot a slot whose length is much greater than the height of the vertical frame 5; to make the use range of the device wider;

[0055] The vertical frame 5 includes a first vertical frame 51 vertically installed on the moving base 1, a second vertical frame 52 arranged parallel to the first vertical frame 51, a sliding table 53 slidingly cooperating with the first vertical frame 51 and connected to the second vertical frame 52, and a sliding table driving device 54 for driving the sliding table 53 to move linearly vertically; the sliding frame 2 slidingly cooperates with the second vertical frame 52, and the cutting device 4 is arranged on the side of the sliding frame 2 away from the second vertical frame 52; a distance measuring instrument 10 for measuring the distance between the sliding frame 2 and the floor is provided on the sliding frame 2.

[0056] The vertical frame 1 51 is installed on the mobile base 1 and is strengthened with the stability of the vertical frame 1 and the mobile base 1 by diagonal bracing; the vertical frame 2 52 is not connected to the mobile base 1, and is arranged parallel to the vertical frame 1 51 and is located between the vertical frame 1 51 and the wall; the slide 53 is slidably matched with the vertical frame 1 51 and is fixedly connected to the vertical frame 2 52, and the vertical frame 2 52 fixedly connected to the slide 53 can be moved along the length direction of the vertical frame 1 51 under the drive of the slide drive device 54, thereby driving the slide frame 2 on the vertical frame 2 52 to move along the length direction of the vertical frame 1 51;

[0057] When in use, firstly, the sliding frame 2 is controlled to move upward along the length direction of the second vertical frame 52 to realize slotting; at this time, the slide drive device 54 does not drive the slide 53; when the sliding frame 2 moves to the top of the second vertical frame 52, but the slotting length is not yet completed and it is necessary to continue slotting, the slide drive device 54 will start and control the slide 53 to move upward along the length direction of the second vertical frame 52, driving the second vertical frame 52 to move upward, so as to realize the continued slotting through the cutting device 4; until the slotting length meets the requirements, the slide drive device 54 stops driving, the slotting is completed, the cutting device 4 stops slotting, and the dustproof device 6 is closed; then the vertical drive device 3 and the slide drive device 54 control the sliding frame 2 and the slide 53 to move downward and return to the initial position respectively;

[0058] The rangefinder 10 performs distance measurement in real time during the movement of the sliding frame 2, and feeds back the measurement data to the control box 8, so that the control box 8 calculates the length of the slot made by the cutting device 4 and determines whether the length meets the requirements. If it meets the requirements, the cutting device 4 is controlled to stop cutting; if it does not meet the length requirements, the cutting device 4 is controlled to continue to move upward until the slot length meets the requirements.

[0059] In some possible implementations, in order to effectively control the cutting device 4 to perform grooving in the vertical direction;

[0060] The vertical drive device 3 includes a vertical lead screw 31 arranged vertically and mounted on the second vertical frame 52 , a vertical drive motor 32 drivingly connected to the vertical lead screw 31 , and a lead screw nut mounted on the sliding frame 2 and threadedly connected to the vertical lead screw 31 .

[0061] The vertical drive motor 32 is arranged at the top of the second vertical frame 52, and the vertical lead screw 31 is arranged in parallel with the second vertical frame 52, and realizes rotational cooperation with the second vertical frame 52 through a bearing; the lead screw nut is installed on the sliding frame 2 and is sleeved on the outer side of the vertical lead screw 31, and the output shaft of the vertical drive motor 32 is connected to the top of the vertical lead screw 31 through a coupling, driving the vertical lead screw 31 to rotate, thereby driving the lead screw nut to move along the long direction of the vertical lead screw 31, realizing the movement of the sliding frame 2 along the length direction of the second vertical frame 52, and then realizing the cutting device 4 to slot the wall vertically;

[0062] In some possible embodiments,

[0063] A second chute is provided on the second vertical frame 52, and a second slider cooperating with the second chute is provided on the sliding frame 2; the long direction of the second chute is arranged vertically.

[0064] The sliding frame 2 includes two groups of sliding plates symmetrically arranged on both sides of the second vertical frame 52; two groups of the second chutes are arranged corresponding to the sliding plates one by one, the second slider is arranged on the side of the sliding plate close to the second chute and is in sliding cooperation with the second chute, and the two groups of sliding plates are connected by bolts; since the second slider is located in the second chute, the lead screw nut is located between the two groups of sliding plates and is fixedly connected to one of the sliding plates; in this way, the rotation of the lead screw nut around the vertical lead screw 31 can be effectively restricted, so that it can only move linearly along the length direction of the vertical lead screw 31 and cannot rotate, thereby enabling the cutting device 4 to effectively perform wall grooving.

[0065] In some possible embodiments,

[0066] The slide table driving device 54 has the same structure as the vertical driving device 3, and includes a slide table lead screw 541 arranged vertically and installed on the first vertical frame 51, a slide table driving motor 542 drivingly connected to the slide table lead screw 541, and a nut installed on the slide table 53 and screwed to the slide table lead screw 541;

[0067] The working principle of the slide table driving device 54 is the same as that of the vertical driving device 3, and will not be elaborated here.

[0068] A first chute is provided on the first vertical frame 51, and a first slider cooperating with the first chute is provided on the slide table 53; the long direction of the first chute is arranged vertically.

[0069] The slide table 53 has the same structure as the sliding frame 2, and includes two groups of sliding plates symmetrically arranged on both sides of the first vertical frame 51, and one of the groups of sliding plates is located between the first vertical frame 51 and the second vertical frame 52 and is fixedly connected to the second vertical frame 52; two groups of the first chutes are arranged corresponding to the sliding plates one by one, the first slider is arranged on the side of the sliding plate close to the first chute and is in sliding cooperation with the first chute, and the two groups of sliding plates are connected by bolts; since the first slider is located in the first chute, the nut is located between the two groups of sliding plates and is fixedly connected to one of the sliding plates; in this way, the rotation of the nut around the slide table lead screw 541 can be effectively restricted, so that it can only move linearly along the length direction of the slide table lead screw 541 and cannot rotate, thereby enabling the second vertical frame 52 to effectively perform wall grooving.

[0070] In some possible embodiments, in order to effectively perform grooving in accordance with the width requirement at one time;

[0071] The cutting device 4 includes a rotating shaft 42, two groups of blades 41 sleeved on the rotating shaft 42 and arranged in parallel, a housing 43 sleeved outside the blades 41 and rotatably matched with both ends of the rotating shaft 42, and a driving device drivingly connected to the rotating shaft 42; an opening for the blades 41 to pass through is provided on the housing 43.

[0072] The two groups of blades 41 are fixed on the rotating shaft 42, and the driving device drives the rotating shaft 42 to rotate, so as to realize the cutting and grooving of the blades 41 on the wall.

[0073] Before cutting and grooving, the two groups of blades 41 are installed according to the width of the groove, and the distance between the cutting edges of the two groups of blades 41 is the width of the groove.

[0074] In some possible implementation manners, in order to effectively control the grooving depth;

[0075] A telescopic rod member 7 arranged horizontally is provided on the housing 43, and the telescopic rod member 7 is perpendicular to the rotating shaft 42.

[0076] The telescopic rod member 7 is an existing device capable of automatically telescoping and controlling the telescopic length, such as an electric push rod or an electric telescopic screw.

[0077] The distance between the telescopic rod member 7 and the blades 41 close to the wall in the initial state is a fixed value; before cutting and grooving, this fixed value is adjusted according to the grooving depth to make this position consistent with the grooving depth; during grooving, the blades 41 act on the wall and move into the wall. When the side of the telescopic rod member 7 close to the wall abuts against the wall, it means that the grooving depth meets the requirements, and the blades 41 do not need to extend into the wall, and only need to move vertically according to the entire depth.

[0078] When there are multiple depths in a groove, since a distance measuring instrument 10 is provided in this device to perform distance measurement, when a section of the groove with a certain depth is constructed according to the length requirement, the device stops construction, and the entire device moves away from the wall and the blades 41 withdraw from the wall.

[0079] The control box 8 turns on the telescopic rod member 7, and the telescopic rod member 7 will telescope and control its length according to the depth of the next grooving. After the distance between the end of the telescopic rod member 7 and the side of the blades 41 close to the wall meets the depth of the next grooving; the blades 41 will enter the wall again, and the telescopic rod member 7 abuts against the outer side of the wall. Since the height of the blades 41 relative to the floor has not changed, the construction of the next section of the groove with a different depth can continue.

[0080] In some possible embodiments, the dust-proof device 6 is mainly used to handle the dust generated during cutting; it can be implemented by using a dust suction device in the prior art; however, it can only collect the dust and cannot effectively cool the blade 41, thus failing to effectively protect the cutting device 4.

[0081] In order to effectively handle the dust and cool the blade 41, and improve the service life of the cutting device 4;

[0082] The dust-proof device 6 includes a water tank installed on the moving base 1, a water pump installed in the water tank, a hose connected to the water pump and with the other end installed on the outer shell 43, and a nozzle 61 installed at the outlet of the hose and spraying water on the blade 41.

[0083] When starting to groove, the blade 41 rotates into the wall body, generating a large amount of heat by friction with the wall body; the water pump transports the water in the water tank to the nozzle 61 through the hose, and the nozzle 61 sprays it on the blade 41, which can not only cool the blade 41 but also effectively reduce the flying of dust.

[0084] Furthermore, a dust-proof cover is also provided on the outer shell 43, wrapping the blade 41 and the outer shell 43 inside to prevent the flying of dust during cutting.

[0085] Preferably, a handrail is provided on the side of the vertical frame 1 away from the vertical frame 2, facilitating the construction workers to push the device.

[0086] On the other hand:

[0087] The present invention provides a method for using a wall intelligent grooving device, which specifically includes the following steps:

[0088] Step S1: Move the grooving device to the exact front of the position on the wall to be grooved;

[0089] Step S2: Prepare before grooving;

[0090] According to the grooving depth, adjust the horizontal distance between the end of the telescopic member 7 close to the wall and the blade 41 on the side close to the wall;

[0091] Step S3: Control the cutting device 4, the dust-proof device 6, and the vertical driving device 3 to start grooving;

[0092] The step S3 specifically includes the following steps:

[0093] Step S31: The cutting device 4 starts to cut the wall for grooving. At the same time, the water pump is turned on, and water is sprayed on the blade 41 through the nozzle 61 to cool the blade 41 and handle the dust;

[0094] Step S32: The construction workers push the entire grooving device towards the wall side until the end of the telescopic member 7 close to the wall abuts against the wall, and then stop pushing.

[0095] Step S33: Drive the sliding frame 2 to move vertically through the vertical driving device 3 to drive one end of the cutting device 4 to groove.

[0096] When the cutting device 4 moves to the top of the vertical frame 5 two and the grooving is still not completed; move vertically through the slide table driving device 54 to drive the vertical frame 5 two and the cutting device 4 to move until the grooving is completed.

[0097] Step S4: The grooving is completed.

[0098] The present invention is not limited to the foregoing specific embodiments. The present invention extends to any new feature or any new combination disclosed in this specification, as well as any new combination of steps of any new method or process disclosed.

Claims

1. An intelligent wall slotting device, characterized in that, The grooving device includes a moving base, a vertical frame vertically arranged and installed on the moving base, a sliding frame linearly moving vertically and slidingly engaged with the vertical frame, a vertical driving device for driving the sliding frame to move vertically, a cutting device installed on the sliding frame, a dust-proof device installed on the moving base and used in cooperation with the cutting device, and a control box installed on the vertical frame and connected to the dust-proof device, the vertical driving device, and the cutting device respectively; the vertical frame includes a first vertical frame vertically installed on the moving base, a second vertical frame arranged parallel to the first vertical frame, a sliding table slidingly engaged with the first vertical frame and connected to the second vertical frame, and a sliding table driving device for driving the sliding table to linearly move vertically; the sliding frame is slidingly engaged with the second vertical frame, and the cutting device is arranged on the side of the sliding frame away from the second vertical frame; a distance measuring instrument for measuring the distance between the sliding frame and the floor is arranged on the sliding frame; the vertical driving device includes a vertical lead screw vertically arranged and installed on the second vertical frame, a vertical driving motor drivingly connected to the vertical lead screw, and a lead screw nut installed on the sliding frame and threadedly engaged with the vertical lead screw; a second chute is arranged on the second vertical frame, and a second slider is arranged on the sliding frame and used in cooperation with the second chute; the length direction of the second chute is vertically arranged; the sliding table driving device has the same structure as the vertical driving device, and includes a sliding table lead screw vertically arranged and installed on the first vertical frame, a sliding table driving motor drivingly connected to the sliding table lead screw, and a nut installed on the sliding table and threadedly engaged with the sliding table lead screw; A first chute is arranged on the first vertical frame, and a first slider is arranged on the sliding table and used in cooperation with the first chute; the length direction of the first chute is vertically arranged; the cutting device includes a rotating shaft, two groups of blades sleeved on the rotating shaft and arranged in parallel, and a housing sleeved outside the blades and rotatably engaged with both ends of the rotating shaft; A horizontally arranged telescopic member is arranged on the housing, and the telescopic member is perpendicular to the rotating shaft.

2. The intelligent wall slotting device according to claim 1, wherein The cutting device further includes a driving device drivingly connected to the rotating shaft; an opening for the blade to pass through is arranged on the housing.

3. The intelligent wall slotting device according to claim 1, characterized in that, The dust-proof device includes a water tank installed on the moving base, a water pump installed in the water tank, a hose connected to the water pump and the other end of which is installed on the housing, and a nozzle installed at the outlet of the hose and spraying water on the blade.

4. A method for using an intelligent wall slotting device according to any one of claims 1-3, characterized in that Specifically, it includes the following steps: Step S1: Move the grooving device to the front of the position on the wall to be grooved; Step S2: Prepare before grooving; According to the grooving depth, adjust the horizontal distance between the end of the telescopic member close to the wall and the blade on the side close to the wall; Step S3: Control the cutting device, the dust-proof device, and the vertical driving device to start grooving; Step S4: The grooving is completed.

5. The usage method of an intelligent wall slotting device according to claim 4, characterized in that, The specific steps of step S3 are as follows: Step S31: Start the cutting device to cut the wall for grooving. At the same time, turn on the water pump and spray water on the blade through the nozzle; Step S32: The construction worker pushes the entire grooving device to move towards the side close to the wall until the end of the telescopic member close to the wall abuts against the wall, and then stops pushing; Step S33: Drive the sliding frame to move vertically through the vertical driving device to drive one end of the cutting device to groove; When the cutting device moves to the top of the second vertical frame and the grooving is not completed yet; the second vertical frame and the cutting device are driven to move vertically by the slide driving device until the grooving is completed.

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