Metal cutting process

Abstract

The present invention relates to the field of metal cutting technology, and more specifically, to a metal cutting process. It comprises: step one, placing a metal body in parallel on a guide path formed by a guide assembly; step two, pushing the metal body in the direction of a circular saw blade for the first time; step three, pushing the metal body in the direction of a circular saw blade for the second time, so that the metal body is supported by the tail side of the outward expansion guide and bends outward; then, the metal body fed after the outward expansion guide enters the guide path formed by a restoration assembly, so that the bent and deformed metal body is restored with the help of the restoration assembly. In the present invention, a "V"-shaped slit is formed by bending and deforming the two parts of the cut metal outward, so that the two parts of the cut metal are separated from the circular saw blade, and the two parts are changed from surface contact to line contact, that is, mutual wear between the two parts is avoided, and the quality of the slit formation can be ensured.

Description

Technical Field

[0001] The invention relates to the technical field of metal cutting, in particular to a metal cutting process. Background Art

[0002] Currently, circular saws are usually used to cut long strips of metal, and the circular saw is fixed (it is not ruled out that the circular saw can move up and down), and the long strip of metal is pushed so that it is slowly cut by the circular saw. However, in the process of the circular saw cutting the long strip of metal, as the metal is pushed forward, the circular saw that stays in the gap formed by the cut metal is very easily worn by the metal in its path. Similarly, the metal in its path is also easily worn by the rotating circular saw. Summary of the invention

[0003] The object of the present invention is to provide a metal cutting process to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, a metal cutting process is provided, which is used in the process of cutting a long strip of metal body. The cutting device includes a base plate and a driving part installed on the base plate. A circular saw blade is arranged on the output shaft of the driving part. The circular saw blade is driven to rotate by the output shaft. The device also includes a guide assembly, a recovery assembly and an outward expansion guide. The following process steps are performed based on the guide assembly, the recovery assembly and the outward expansion guide:

[0005] Step 1: Place the metal body in parallel on the guide path formed by the guide assembly;

[0006] Step 2: Push the metal body toward the direction of the circular saw blade for the first time, so that the metal body is cut by the circular saw blade to form a cut that runs through the metal body from top to bottom;

[0007] Step 3: Push the metal body a second time in the direction of the circular saw blade so that the head side of the outward expansion guide is inserted into the slit. During the pushing process, the metal body is supported by the tail side of the outward expansion guide and bends outward, so that the slit is in a "V" shape with its mouth opening toward the recovery component when viewed from above or above, so as to avoid subsequent contact between the metal body and the circular saw blade.

[0008] Then, the metal body fed after the outward expansion guide enters the guide path formed by the restoration component, so that the bent and deformed metal body is restored with the help of the restoration component;

[0009] The bent and deformed metal body is restored to a straight metal body parallel to the guide path;

[0010] Wherein, the circular saw blade is arranged between the guide assembly and the restoration assembly, and the circular saw blade is arranged vertically, and the central axis of the circular saw blade is perpendicular to the guide path formed by the guide assembly and the restoration assembly;

[0011] Wherein, the lowest point of the circular saw blade is lower than the upper surface of the base plate.

[0012] As a further improvement of the technical solution, the guide assembly includes a first guide plate and a second guide plate, a guide groove is formed between the first guide plate and the second guide plate, and the recovery assembly includes a second recovery plate and a first recovery plate, a recovery groove is formed between the second recovery plate and the first recovery plate, wherein:

[0013] The first guide plate and the first restoration plate are located on the same side, and the second guide plate and the second restoration plate are located on the same side;

[0014] The central axes formed in the length directions of the guide groove and the recovery groove are collinear;

[0015] A guide path is formed along the central axis direction of the guide groove and the recovery groove;

[0016] The first guide plate and the second guide plate are straight plates, the second restoration plate and the first restoration plate are folding plates, and the plate bodies of the second restoration plate and the first restoration plate close to the circular saw blade deviate outward from the guide path to form an opening, and the plate bodies away from the circular saw blade are parallel to the guide path to form a closed end.

[0017] As a further improvement of the technical solution, one or two intermediate plates are arranged between the second recovery plate and the first recovery plate.

[0018] As a further improvement of the technical solution, the first guide plate and the second guide plate are both provided with a plurality of first slide plates at the bottom, the second restoration plate and the first restoration plate are both provided with a plurality of second slide plates at the bottom, and the bottom plate is provided with a corresponding number of slide grooves corresponding to the first slide plates and the second slide plates;

[0019] Among them, all the first slide plates and the second slide plates are respectively slidably connected with their corresponding slide grooves, and a number of the first slide plates on both sides are selected to be connected with the pushing member;

[0020] The adjacent second slide plates are connected and fixed to the first slide plates via an integral plate.

[0021] As a further improvement of the technical solution, heating wires are provided in the first guide plate and the second guide plate. When energized, the heating wires heat up the first guide plate and the second guide plate to heat the metal body.

[0022] As a further improvement of the technical solution, the outward expansion guide member is a first outward expansion guide block, the first outward expansion guide block is arranged between the circular saw blade and the restoration assembly, but closer to the circular saw blade, and the center axis formed in the length direction of the first outward expansion guide block falls on the guide path;

[0023] The head side of the first outward expansion guide block is narrower than the tail side thereof, so that the tail sides of both side surfaces of the first outward expansion guide block expand outward;

[0024] wherein the head side of the first outwardly expanded guide block faces the circular saw blade;

[0025] The head side width of the first outwardly expanded guide block is equal to or smaller than the slit width.

[0026] As a further improvement of the technical solution, the circular saw blade can move up and down.

[0027] As a further improvement of the technical solution, an annular receiving groove is provided on both sides of the circular saw blade, the outward expansion guide member includes two second outward expansion guide blocks, the two second outward expansion guide blocks are respectively located in the two receiving grooves, the outward side of the second outward expansion guide block is tapered, and the tapered outer edge of the second outward expansion guide block falls in the receiving groove, the outer edge forms the head side, and the apex of the cone forms the tail side;

[0028] A swing arm is arranged outside the second outward expansion guide block, and the swing arm is rotatably connected to the shaft connected to the circular saw blade to drive the second outward expansion guide block to perform circular motion and fix the second outward expansion guide block at any position on the motion path.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] In the metal cutting process, the two parts of the cut metal are bent outward to form a "V"-shaped cut, so that the two parts of the cut metal are separated from the circular saw blade, and the surface contact between the two parts is changed to line contact, thereby avoiding mutual wear between the two parts and ensuring the quality of the cut. In addition, the bent and deformed metal body is restored with the help of a restoration component, which also ensures that the shape of the cut metal is consistent with the metal obtained by the existing cutting process. More importantly, the direction of the metal's movement can be constrained, so that even the longest metal can be suitable for this cutting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the connection relationship between the guide plate, the recovery plate and the bottom plate of the present invention;

[0033] Figure 3 It is a schematic diagram of the structure of the first outward-expanded guide block of the present invention;

[0034] Figure 4 It is a schematic diagram of the metal body of the present invention in sections;

[0035] Figure 5 It is a schematic diagram of the side structure of the first intermediate plate of the present invention;

[0036] Figure 6 It is a schematic diagram of the side structure of the second middle plate and the third middle plate of the present invention;

[0037] Figure 7 It is a schematic diagram of the side structure of the circular saw blade and the second outwardly expanded guide block of the present invention.

[0038] The meaning of each number in the figure is:

[0039] 100, bottom plate; 100A, sinking groove; 100B, slide groove; 110, support plate; 120, top cover; 200, guide assembly; 210, first guide plate; 220, second guide plate; 230, first slide plate; 200A, guide groove; 300, recovery assembly; 320, first recovery plate; 310, second recovery plate; 330, second slide plate; 340, first middle plate; 350, second middle plate; 360, third middle plate; 300A, recovery groove; 400, circular saw blade; 410, driving part; 400A, accommodating groove; 500, outward expansion guide; 600, metal body; 700, integrated plate;

[0040] 510, first outward expansion guide block; 520, second outward expansion guide block; 521, swing arm;

[0041] 600a, advancement section; 600b, deformation section; 600c, recovery section. DETAILED DESCRIPTION

[0042] The following will be combined with the accompanying drawings of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] In the process of cutting long strips of metal with a circular saw, the metal stays in the gap formed by the cutting metal when it is advanced, and is easily worn by the metal in the path. Similarly, the metal in the path is also easily worn by the rotating circular saw. Therefore, the present invention provides a metal cutting process.

[0045] See also Figure 1 As shown, the metal cutting process is used in the process of cutting long strips of metal with a circular saw. The cutting of the metal body 600 is carried out on the bottom plate 100. The bottom plate 100 is provided with a guide assembly 200, a recovery assembly 300 and a circular saw blade 400. The guide assembly 200 and the recovery assembly 300 both have the ability to guide the metal body 600, and the guiding direction is consistent. The circular saw blade 400 is arranged between the guide assembly 200 and the recovery assembly 300. The circular saw blade 400 is arranged vertically, and then its central axis is perpendicular to the guide assembly 200 and the recovery assembly 300. 00 forms a guide path. In order to allow the circular saw blade 400 to rotate, a driving portion 410 is provided in the axial direction of the circular saw blade 400. The driving portion 410 is mounted on the base plate 100. The circular saw blade 400 is provided on the output shaft of the driving portion 410. The circular saw blade 400 is driven to rotate by the output shaft, and the lowest point of the circular saw blade 400 must be lower than the upper surface of the base plate 100. A common method is: a slot is opened on the base plate 100 at a position directly below the circular saw blade 400 and parallel to the circular saw blade 400, and then the circular saw blade 400 is placed in the slot.

[0046] Furthermore, an outward expansion guide 500 is provided on the guide path between the guide assembly 200 and the recovery assembly 300. The specific process steps are as follows:

[0047] Step 1: Place the metal body 600 in parallel on the guide path formed by the guide assembly 200, so that the metal body 600 falls on the upper surface of the bottom plate 100;

[0048] Step 2: Push the metal body 600 toward the direction of the circular saw blade 400 for the first time, so that the metal body 600 is cut by the circular saw blade 400 to form a cut that runs through the metal body 600 from top to bottom;

[0049] Step 3: Push the metal body 600 a second time in the direction of the circular saw blade 400 so that the head side of the outward expansion guide 500 is inserted into the slit. During the pushing process, the metal body 600 is supported by the tail side of the outward expansion guide 500 and bends outward, so that the slit can be opened, so that the slit is in a "V" shape with its mouth opening toward the recovery component 300 when viewed from above or above, thereby preventing the subsequent metal body 600 from contacting the circular saw blade 400 and facilitating the circular saw blade 400 to perform cutting.

[0050] Then, the metal body 600 fed after the outward expansion guide 500 enters the guide path formed by the restoration component 300. After being squeezed by the restoration component 300, the bent and deformed metal body 600 is restored to become a straight metal body 600 parallel to the guide path.

[0051] Continue reading Figure 1 As shown, the guide assembly 200 includes a first guide plate 210 and a second guide plate 220, and a guide groove 200A is formed between the first guide plate 210 and the second guide plate 220. The recovery assembly 300 includes a second recovery plate 310 and a first recovery plate 320, and a recovery groove 300A is formed between the second recovery plate 310 and the first recovery plate 320, wherein:

[0052] The first guide plate 210 and the first restoration plate 320 are located on the same side, and the second guide plate 220 and the second restoration plate 310 are located on the same side;

[0053] The central axes formed by the length directions of the guide groove 200A and the recovery groove 300A are collinear;

[0054] A guide path is formed along the central axis direction of the guide groove 200A and the recovery groove 300A;

[0055] The first guide plate 210 and the second guide plate 220 are straight plates, the second restoration plate 310 and the first restoration plate 320 are folding plates, and the plate bodies of the second restoration plate 310 and the first restoration plate 320 close to the circular saw blade 400 deviate outward from the guide path to form an opening, and the plate bodies away from the circular saw blade 400 are parallel to the guide path to form a closed end.

[0056] The first embodiment, as Figure 1 As shown, in this embodiment, the circular saw blade 400 rotates in the direction indicated by arrow a / in the opposite direction, see Figure 3 As shown, the outward expansion guide member 500 is a first outward expansion guide block 510, and further reference is made to Figure 1 The first outward expansion guide block 510 is disposed between the circular saw blade 400 and the restoration assembly 300, but is closer to the circular saw blade 400, and the center axis formed in the length direction of the first outward expansion guide block 510 falls on the guide path. Figure 3 As can be seen from the dotted line in the figure, the head side of the first outward expansion guide block 510 is narrower than its tail side, so that the tail sides of the two side surfaces of the first outward expansion guide block 510 are slightly expanded outward, and then the head side of the first outward expansion guide block 510 faces the circular saw blade 400, and the head side width of the first outward expansion guide block 510 is equal to or less than the kerf width (i.e., the thickness of the circular saw blade 400). The working principle is as follows:

[0057] like Figure 4As shown, the metal body 600 is placed in the guide groove 200A, and then the metal body 600 is pushed to move in the direction close to the circular saw blade 400. The moving metal body 600 is cut by the circular saw blade 400 to form a slit. At this time, the metal body 600 is divided into left and right parts by the slit. Then, the head side of the first outward expansion guide block 510 is stuck in the slit. The left and right parts of the metal body 600 that continues to move are affected by the surface of the outward expansion of the tail side of the first outward expansion guide block 510, and are bent outward ( Figure 4 Then, the bent and deformed metal body 600 enters the opening of the restoration groove 300A again, and with the help of the second restoration plate 310 and the first restoration plate 320 changing from an opening to a closed opening, the bent and deformed metal body 600 is straightened again.

[0058] like Figure 2 and Figure 3 As shown, Figure 2 In FIG. 6 , L1 shows the distance between the first guide plate 210 and the second guide plate 220 (ie, the width of the guide groove 200A, that is, the width of the metal body 600 ), and L2 shows the width of the closing of the recovery groove 300A. Figure 3 In FIG. 4 , L3 shows the width of the kerf (i.e., the thickness of the circular saw blade 400 ), so that L1-L2=L3. Then, the above working principle can be explained in another way, namely:

[0059] like Figure 4 As shown, the metal body 600 is divided into a propulsion section 600a, a deformation section 600b and a recovery section 600c, and then the propulsion section 600a is a straight-line integral body in the guide groove 200A, and then is cut into two deformation sections 600b by a circular saw blade 400. The two deformation sections 600b are distributed on the left and right, and the two deformation sections 600b have been bent and deformed outward under the action of the first outward expansion guide block 510, and then enter the opening of the recovery groove 300A. After being guided by the second recovery plate 310 and the first recovery plate 320, the two deformation sections 600b are close to and fit each other. At this time, under the action of the closing, the two bent deformation sections 600b are restored into two straight-line recovery sections 600c.

[0060] There are two other implementations for forming the recovery section 600c, as follows:

[0061] First, if Figure 5As shown, the first intermediate plate 340 is set in the middle between the second restoration plate 310 and the first restoration plate 320, and the central axis of the first intermediate plate 340 in the length direction falls on the guide path. Then, assuming that the setting thickness of the first intermediate plate 340 is D, then L2=L1-L3+D, and the end of the first intermediate plate 340 facing the circular saw blade 400 falls into the opening, so that the metal body 600 bent inward by the second restoration plate 310 and the first restoration plate 320 can contact the first intermediate plate 340, so that the formation of the restoration section 600c is completed in the cooperation of the first intermediate plate 340.

[0062] Preferably, D=L3.

[0063] Second, if Figure 6 As shown, the second intermediate plate 350 and the third intermediate plate 360 ​​are disposed between the second restoration plate 310 and the first restoration plate 320 , and L2>L1-L3+2D, but this is only applicable to the metal body 600 cut in half.

[0064] Preferably, a sinking groove 100A is provided on the bottom plate 100 directly below the driving part 410 and the circular saw blade 400, and its purpose is the same as the above-mentioned notch, but this method is more convenient for the installation of the first outward expansion guide block 510, and in order to ensure the feeding stability of the metal body 600, such as Figure 2 As shown, support plates 110 are disposed on both sides of the circular saw blade 400 in the sinking groove 100A.

[0065] For further information, see Figure 2 As shown, a plurality of first slide plates 230 are provided at the bottom of the first guide plate 210 and the second guide plate 220, and a plurality of second slide plates 330 are provided at the bottom of the second restoration plate 310 and the first restoration plate 320. A corresponding number of slide grooves 100B are opened on the bottom plate 100 corresponding to the first slide plates 230 and the second slide plates 330, and then all the first slide plates 230 and the second slide plates 330 are respectively slidably connected to their corresponding slide grooves 100B, and a plurality of first slide plates 230 on both sides are selected to be connected with hydraulic rods or electric push rods (collectively referred to as pushers), so that the positions of the first guide plate 210 and the second guide plate 220 can be adjusted under the action of the hydraulic rod or the electric push rod. In order to keep the first restoration plate 320 and the second restoration plate 310 synchronized, the adjacent second slide plates 330 and the first slide plates 230 are connected and fixed by an integrated plate 700, so that the non-halved cutting of the metal body 600 can be achieved by adjusting the positions of the first guide plate 210 and the second guide plate 220.

[0066] In addition, heating wires are provided in the first guide plate 210 and the second guide plate 220. The heating wires, when energized, heat the first guide plate 210 and the second guide plate 220 to heat the metal body 600, making it easier to deform and improving the cutting effect. It should be noted that Figure 6 In the illustrated embodiment, since the second middle plate 350 and the third middle plate 360 ​​are separated, the cooling efficiency of the metal body 600 is higher than that of the other two embodiments.

[0067] Preferably, in order to prevent the heat from being lost too quickly, a top cover 120 is provided on the bottom plate 100 outside the first guide plate 210 and the second guide plate 220 .

[0068] Second embodiment, see Figure 7 In this embodiment, the circular saw blade 400 can not only rotate in the direction indicated by arrow a / opposite direction, but also move up and down in the direction indicated by arrow b. In this way, the circular saw blade 400 forms a vertical cutting surface instead of an arc-shaped cutting surface during cutting, which is more conducive to the formation of a "V"-shaped cutting seam, because the arc-shaped cutting surface causes the vertical connection of the two deformation segments 600b to be inconsistent.

[0069] However, a disadvantage of this embodiment is that the metal body 600 needs to be cut section by section, so the working efficiency is reduced.

[0070] The outward expansion guide 500 adapted to this embodiment is also Figure 7 As shown in the figure, first, an annular accommodating groove 400A is opened on both sides of the circular saw blade 400, and the outward expansion guide member 500 includes two second outward expansion guide blocks 520, and the two second outward expansion guide blocks 520 are respectively located in the two accommodating grooves 400A, and the outward side of the second outward expansion guide block 520 is tapered, and the tapered outer edge of the second outward expansion guide block 520 falls in the accommodating groove 400A, and the head side is formed by its outer edge, and the apex of the cone forms the tail side. Under the support of the second outward expansion guide block 520, the metal body 600 will also bend and deform. In addition, a swing arm 521 is arranged outside the second outward expansion guide block 520, and the swing arm 521 is rotatably connected to the shaft connected to the circular saw blade 400 to drive the second outward expansion guide block 520 to perform circular motion, and can fix the second outward expansion guide block 520 at any position on the motion path.

[0071] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A metal cutting process, used in a process of cutting a long strip of metal body (600), wherein the cutting device comprises a base plate (100) and a driving unit (410) mounted on the base plate (100), wherein a circular saw blade (400) is arranged on an output shaft of the driving unit (410), and the circular saw blade (400) is driven to rotate by the output shaft, wherein: It also includes a guide component (200), a recovery component (300) and an outward expansion guide (500), and the following process steps are performed based on the guide component (200), the recovery component (300) and the outward expansion guide (500): Step 1: placing the metal body (600) in parallel on the guide path formed by the guide assembly (200); Step 2: Pushing the metal body (600) toward the direction of the circular saw blade (400) for the first time, so that the metal body (600) is cut by the circular saw blade (400) to form a cut that runs through the metal body (600); Step 3: Push the metal body (600) a second time in the direction of the circular saw blade (400), so that the head side of the outward expansion guide (500) is inserted into the slit. During the pushing process, the metal body (600) is supported by the tail side of the outward expansion guide (500) and is bent outward, so that the slit is in a "V" shape with its mouth opening toward the recovery component (300) when viewed from above or above, so as to prevent the metal body (600) from contacting the circular saw blade (400) in the future. Then, the metal body (600) fed after the guide member (500) is expanded outward enters the guide path formed by the restoration component (300), so that the bent and deformed metal body (600) is restored with the help of the restoration component (300); The bent and deformed metal body (600) is restored to a straight metal body (600) parallel to the guide path; The circular saw blade (400) is arranged between the guide assembly (200) and the restoration assembly (300), and the circular saw blade (400) is arranged vertically, and the central axis of the circular saw blade (400) is perpendicular to the guide path formed by the guide assembly (200) and the restoration assembly (300); Wherein, the lowest point of the circular saw blade (400) is lower than the upper surface of the bottom plate (100); The guide assembly (200) comprises a first guide plate (210) and a second guide plate (220), a guide groove (200A) being formed between the first guide plate (210) and the second guide plate (220), and the recovery assembly (300) comprises a second recovery plate (310) and a first recovery plate (320), a recovery groove (300A) being formed between the second recovery plate (310) and the first recovery plate (320), wherein: The first guide plate (210) and the first restoration plate (320) are located on the same side, and the second guide plate (220) and the second restoration plate (310) are located on the same side; The central axes formed in the length directions of the guide groove (200A) and the recovery groove (300A) are collinear; A guide path is formed along the central axis direction of the guide groove (200A) and the recovery groove (300A); The first guide plate (210) and the second guide plate (220) are straight plates, the second restoration plate (310) and the first restoration plate (320) are folded plates, and the plate bodies of the second restoration plate (310) and the first restoration plate (320) on a side close to the circular saw blade (400) deviate outward from the guide path to form an opening, and the plate bodies on a side away from the circular saw blade (400) are parallel to the guide path to form a closed end; The outward expansion guide member (500) is a first outward expansion guide block (510), the first outward expansion guide block (510) is arranged between the circular saw blade (400) and the restoration assembly (300), but closer to the circular saw blade (400), and a central axis formed in a length direction of the first outward expansion guide block (510) falls on the guide path; The head side of the first outward-expanding guide block (510) is narrower than the tail side thereof, so that the tail sides of both side surfaces of the first outward-expanding guide block (510) expand outwards; Wherein, the head side of the first outwardly expanded guide block (510) faces the circular saw blade (400); The head side width of the first outward expansion guide block (510) is equal to or smaller than the slit width; Both sides of the circular saw blade (400) are provided with an annular receiving groove (400A), the outward expansion guide member (500) comprises two second outward expansion guide blocks (520), the two second outward expansion guide blocks (520) are respectively located in the two receiving grooves (400A), the outward side of the second outward expansion guide block (520) is tapered, and the tapered outer edge of the second outward expansion guide block (520) falls in the receiving groove (400A), the outer edge forms a head side, and the apex of the cone forms a tail side; A swing arm (521) is disposed outside the second outward expansion guide block (520), and the swing arm (521) is rotatably connected to a shaft connected to the circular saw blade (400) to drive the second outward expansion guide block (520) to perform circular motion and fix the second outward expansion guide block (520) at any position on the motion path.

2. The metal cutting process according to claim 1, characterized in that: One or two intermediate plates are provided between the second recovery plate (310) and the first recovery plate (320).

3. The metal cutting process according to claim 1, characterized in that: The first guide plate (210) and the second guide plate (220) are both provided with a plurality of first slide plates (230) at their bottoms, the second recovery plate (310) and the first recovery plate (320) are both provided with a plurality of second slide plates (330) at their bottoms, and the bottom plate (100) is provided with a corresponding number of slide grooves (100B) corresponding to the first slide plates (230) and the second slide plates (330); All the first slide plates (230) and the second slide plates (330) are respectively slidably connected to their corresponding slide grooves (100B), and a number of the first slide plates (230) on both sides are selected to be connected to the pusher; The adjacent second slide plate (330) and first slide plate (230) are connected and fixed via an integral plate (700).

4. The metal cutting process according to claim 1, characterized in that: The first guide plate (210) and the second guide plate (220) are provided with heating wires, and when energized, the heating wires heat up the first guide plate (210) and the second guide plate (220), thereby heating the metal body (600).

5. The metal cutting process according to any one of claims 1 to 4, characterized in that: The circular saw blade (400) is capable of moving up and down.

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