Flux-cored wire rolling forming device

Abstract

The utility model discloses a flux-cored wire rolling forming device which comprises an operation base, a horizontal roller component, a vertical roller component and a powder filling component, the horizontal roller component comprises a first horizontal roller wheel and a second horizontal roller wheel, a first horizontal roller groove is formed in the outer wall face of the first horizontal roller wheel, and a second horizontal roller groove is formed in the outer wall face of the second horizontal roller wheel. A first horizontal roller groove is formed in the outer wall face of the first horizontal roller, a second horizontal roller groove is formed in the outer wall face of the second horizontal roller, the first horizontal roller groove and the second horizontal roller groove are of a V-shaped structure, and a first cavity is defined by the first horizontal roller groove and the second horizontal roller groove; the vertical roller component comprises a first vertical roller wheel and a second vertical roller wheel, a first vertical roller groove is formed in the outer wall face of the first vertical roller wheel, a second vertical roller groove is formed in the outer wall face of the second vertical roller wheel, and the first vertical roller groove and the second vertical roller groove are each of an arc structure. And the operation process is simplified, and the production requirements of flux-cored wires of different specifications can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of flux-cored wire roll forming device, belong to flux-cored wire production equipment technical field. BACKGROUND

[0002] At present, the manufacture of flux-cored wire is mainly realized by rolling and filling powder. The conventional forming device usually adopts multi-pass rolling process, and the steel strip is gradually curled and closed by multiple forming rollers to wrap the powder. The conventional forming roller has a simple structure, and it is difficult to effectively press the edge of the steel strip, which leads to the leakage of powder or the appearance of burr during subsequent closing. After searching, it is found that a steel strip forming device for flux-cored wire is disclosed in Chinese Patent No. CN215546006U. In this patent, the transmission shaft is rotated by the driving motor, and the transmission shaft drives two driven bevel gears through the driving bevel gear, which rotates synchronously and in the same direction with the first upper roller and the second upper roller, respectively. The first upper roller drives the first lower roller to rotate synchronously in the opposite direction through a set of synchronous gears, and the second upper roller drives the second lower roller to rotate synchronously in the opposite direction through another set of synchronous gears, so that the first roller group and the second roller group act on the steel strip together to press synchronously, ensuring that the steel strip is not pulled and extruded during the forming process, thereby ensuring the quality of the formed steel strip. However, this patent may require more time to adjust the structure to produce flux-cored wires of different specifications during the roll forming process. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a flux-cored wire roll forming device that can improve the forming efficiency and quality of flux-cored wire, simplify the operation process, and adapt to the production needs of flux-cored wires of different specifications.

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows: a flux-cored wire roll forming device, comprising:

[0005] Operation base;

[0006] Horizontal roller component, the horizontal roller component includes a first horizontal roller and a second horizontal roller, a first horizontal roller groove is provided on the outer wall surface of the first horizontal roller, a second horizontal roller groove is provided on the outer wall surface of the second horizontal roller, the first horizontal roller groove and the second horizontal roller groove are in V-shaped structure, and the first horizontal roller groove and the second horizontal roller groove form a first cavity;

[0007] Vertical roller component, the vertical roller component includes a first vertical roller and a second vertical roller, a first vertical roller groove is provided on the outer wall surface of the first vertical roller, a second vertical roller groove is provided on the outer wall surface of the second vertical roller, the first vertical roller groove and the second vertical roller groove are in circular arc structure, and the first vertical roller groove and the second vertical roller groove form a second cavity;

[0008] The medicine powder filling component comprises a filling support installed on the operation base and a filler installed on the filling support;

[0009] The external traction device delivers the steel strip into the first cavity, and the V-shaped groove of the first horizontal roller and the second horizontal roller pre-presses the steel strip to form a U-shaped open slot, and the filler of the medicine powder filling component is aligned with the U-shaped open slot and fills the medicine powder into the U-shaped open slot;

[0010] The steel strip enters the second cavity of the vertical roller component, and the circular arc groove of the first vertical roller and the second vertical roller rolls the U-shaped steel strip to close the edges of the steel strip to form a tubular structure, thereby wrapping the medicine powder to complete the welding wire forming.

[0011] Further, in order to drive the first horizontal roller and the second horizontal roller, the first horizontal roller table and the second horizontal roller table are slidingly installed on the operation base, the first installation cavity is arranged in the first horizontal roller table, the second installation cavity is arranged in the second horizontal roller table, the first horizontal roller driving motor is arranged in the first installation cavity, the second horizontal roller driving motor is arranged in the second installation cavity, the movable end of the first horizontal roller driving motor is connected with the first horizontal roller, and the movable end of the second horizontal roller driving motor is connected with the second horizontal roller.

[0012] Further, in order to ensure the stable movement of the first horizontal roller table and the second horizontal roller table, the first horizontal roller table is slidingly installed on the operation base through at least one first guide rail sliding block pair;

[0013] The first guide rail sliding block pair comprises:

[0014] The first guide rail is installed on the operation base;

[0015] The sliding block is installed at the bottom of the first horizontal roller table;

[0016] The second horizontal roller table is slidingly installed on the operation base through at least one second guide rail sliding block pair;

[0017] The second guide rail sliding block pair comprises:

[0018] The second guide rail is installed on the operation base;

[0019] The second sliding block is installed at the bottom of the second horizontal roller table.

[0020] Further, in order to conveniently adjust the distance between the horizontal roller tables, a cored wire roll forming device further comprises a horizontal roller movable part, the horizontal roller movable part comprises a horizontal roller movable support, a first telescopic rod and a second telescopic rod, the horizontal roller movable support is installed on the operation base, the first telescopic rod and the second telescopic rod are both installed on the horizontal roller movable support, the movable end of the first telescopic rod is connected with the first horizontal roller table, and the movable end of the second telescopic rod is connected with the second horizontal roller table.

[0021] Further, a vertical roller support is further installed on the operation base, a first vertical roller table is slidingly installed on the vertical roller support, and a second vertical roller table is fixedly installed on the vertical roller support, a first vertical roller wheel is rotatably installed on the first vertical roller table, and a second vertical roller wheel is rotatably installed on the second vertical roller table.

[0022] Further, in order to conveniently adjust the movement of the first vertical roller table, the first vertical roller table is slidingly installed on the vertical roller support through at least a first screw-nut pair, the first screw-nut pair comprises a first screw rod installed on the vertical roller support and a first screw nut installed on the first vertical roller table.

[0023] Screwing the first screw rod drives the first vertical roller table to move axially along the vertical roller support, so as to adjust the distance between the first vertical roller wheel and the second vertical roller wheel.

[0024] Further, in order to better guide the movement of the steel strip, a guide roller part is further arranged between the horizontal roller part and the vertical roller part.

[0025] The guide roller part comprises a guide roller support, a first guide roller and a second guide roller, the guide roller support is installed on the operation base, the first guide roller is slidingly installed on the guide roller support, and the second guide roller is fixedly installed on the operation base, a first guide groove is arranged on the outer wall surface of the first guide roller, a second guide groove is arranged on the outer wall surface of the second guide roller, the first guide groove and the second guide groove are near-circular structures, and the first guide groove and the second guide groove jointly form a guide channel.

[0026] Further, in order to adapt to different specifications of the steel strip in cooperation with the vertical roller part and the horizontal roller part, a first guide table is slidingly installed on the guide roller support, and a second guide table is fixedly installed on the guide roller support.

[0027] The first guide roller is rotatably installed on the first guide table, and the second guide roller is rotatably installed on the second guide table.

[0028] Further, the first guide table is slidably mounted on the guide roller support through at least a second screw nut pair, the second screw nut pair comprising a second screw mounted on the guide roller support and a first nut mounted on the first guide table;

[0029] Screwing the second screw drives the first guide table to move axially along the guide roller support, thereby adjusting the distance between the first and second guide rollers.

[0030] Further, the drug core wire roll forming device further comprises a driving device, the driving device comprising a driving motor, a first transmission wheel, a second transmission wheel and a synchronous belt;

[0031] The driving motor is mounted on the operation base, the first transmission wheel is coaxially arranged with the second guide roller, the second transmission wheel is coaxially arranged with the second vertical roller, and the synchronous belt is adapted to connect the first transmission wheel and the second transmission wheel.

[0032] After the above technical scheme is adopted, the utility model has the following beneficial effects:

[0033] In the utility model, the external traction device sends the steel band into the first cavity of the horizontal roller part, starts the first and second horizontal roller driving motors, drives the two horizontal rollers to rotate in the same direction, pre-presses the steel band by the V-shaped groove, forms the U-shaped open groove, moves the U-shaped steel band to below the medicine powder filling part, and the filler is aligned with the U-shaped groove opening, and the medicine powder is quantitatively injected into the groove;

[0034] The U-shaped steel band filled with medicine powder is guided through the guide channel of the guide roller part, the advancing direction is adjusted and deviation is prevented, and the U-shaped steel band is further rounded through the near-circular guide channel, the driving device links the second guide roller and the second vertical roller through the synchronous belt, and the conveying speed is kept synchronous;

[0035] The steel band enters the second cavity of the vertical roller part, the first vertical roller and the second vertical roller apply radial pressure to the two side edges of the steel band through the circular arc groove, gradually close the U-shaped opening, form the sealed tubular structure wrapping the medicine powder, and during the closing process, the rotating speed of the vertical roller is matched with that of the horizontal roller, so that the medicine powder is prevented from overflowing or the steel band is prevented from deforming;

[0036] When it is necessary to adjust the horizontal roller distance, the first and second horizontal roller tables are pushed to move along the guide rail through the telescopic rod of the horizontal roller movable part, the V-shaped groove distance is changed, and the steel band of different widths is adapted; similarly, the vertical roller distance adjustment is that the first vertical roller table is driven to move by screwing the first screw, the circular arc groove closing pressure is adjusted, and the pipe diameter accuracy is ensured; the guide roller distance adjustment is that the first guide table position is adjusted through the second screw, and the steel band thickness change is matched;

[0037] The formed flux-cored wire is output through the vertical roller component and enters a subsequent process to complete continuous production. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 A perspective view of the flux-cored wire roll forming device of the utility model Figure 1 ;

[0039] Figure 2 A perspective view of the flux-cored wire roll forming device of the utility model Figure 2 ;

[0040] Figure 3 A front view of the flux-cored wire roll forming device of the utility model;

[0041] Figure 4 A top view of the flux-cored wire roll forming device of the utility model;

[0042] Figure 5 A full sectional view of the flux-cored wire roll forming device of the utility model. DETAILED DESCRIPTION

[0043] In order to make the content of the utility model more easily and clearly understood, the utility model is further explained in detail below according to specific embodiments and in combination with the drawings.

[0044] As Figures 1-5 shown, a flux-cored wire roll forming device comprises:

[0045] an operation base 1;

[0046] a horizontal roller component, the horizontal roller component comprising a first horizontal roller 21 and a second horizontal roller 22, a first horizontal roller groove 211 being arranged on an outer wall surface of the first horizontal roller 21, a second horizontal roller groove 221 being arranged on an outer wall surface of the second horizontal roller 22, the first horizontal roller groove 211 and the second horizontal roller groove 221 being in a V-shaped structure, and the first horizontal roller groove 211 and the second horizontal roller groove 221 combining to form a first cavity;

[0047] a vertical roller component, the vertical roller component comprising a first vertical roller 31 and a second vertical roller 32, a first vertical roller groove 311 being arranged on an outer wall surface of the first vertical roller 31, a second vertical roller groove 321 being arranged on an outer wall surface of the second vertical roller 32, the first vertical roller groove 311 and the second vertical roller groove 321 being in a circular arc structure, and the first vertical roller groove 311 and the second vertical roller groove 321 combining to form a second cavity 33;

[0048] a powder filling component, the powder filling component comprising a filling support 41 and a filler 42, the filling support 41 being installed on the operation base 1, and the filler 42 being installed on the filling support 41;

[0049] The external traction device delivers the steel strip into the first cavity, the V-shaped groove of the first horizontal roller 21 and the second horizontal roller 22 pre-presses the steel strip to form a U-shaped open slot, and the filler 42 of the medicine powder filling part is aligned with the U-shaped open slot and fills the medicine powder into the U-shaped open slot.

[0050] The steel strip enters the second cavity 33 of the vertical roller part, and the circular arc groove of the first vertical roller 31 and the second vertical roller 32 rolls the U-shaped steel strip to close the edges of the steel strip to form a tubular structure, thereby wrapping the medicine powder to complete the welding wire forming.

[0051] In this embodiment, the filling speed of the filler 42 matches the conveying speed of the steel strip, ensuring that the powder core of the formed welding wire is continuous, uniform, and free of cavity defects.

[0052] Specifically, as shown in Figures 1-5 The first horizontal roller table 51 and the second horizontal roller table 52 are slidably installed on the operation base 1, the first horizontal roller table 51 is provided with a first installation cavity, the second horizontal roller table 52 is provided with a second installation cavity, the first installation cavity is provided with a first horizontal roller driving motor, the second installation cavity is provided with a second horizontal roller driving motor, the active end of the first horizontal roller driving motor is connected with the first horizontal roller 21, and the active end of the second horizontal roller driving motor is connected with the second horizontal roller 22.

[0053] Specifically, as shown in Figures 1-5 The first horizontal roller table 51 is slidably installed on the operation base 1 through at least one first guide rail sliding block pair;

[0054] The first guide rail sliding block pair comprises:

[0055] The first guide rail is installed on the operation base 1;

[0056] The sliding block is installed at the bottom of the first horizontal roller table 51;

[0057] The second horizontal roller table 52 is slidably installed on the operation base 1 through at least one second guide rail sliding block pair;

[0058] The second guide rail sliding block pair comprises:

[0059] The second guide rail is installed on the operation base 1;

[0060] The second sliding block is installed at the bottom of the second horizontal roller table 52.

[0061] Specifically, as shown in Figures 1-5As shown in the figure, the drug core wire roll forming device further comprises a horizontal roller movable part, the horizontal roller movable part comprises a horizontal roller movable support 53, a first telescopic rod 54 and a second telescopic rod 55, the horizontal roller movable support 53 is installed on the operation base 1, the first telescopic rod 54 and the second telescopic rod 55 are both installed on the horizontal roller movable support 53, the movable end of the first telescopic rod 54 is connected with the first horizontal roller table 51, and the movable end of the second telescopic rod 55 is connected with the second horizontal roller table 52.

[0062] Specifically, as shown in the figure, Figures 1-5 the operation base 1 is further provided with a vertical roller support 61, the first vertical roller table 62 is slidingly installed on the vertical roller support 61, and the second vertical roller table 63 is fixedly installed on the vertical roller support 61, the first vertical roller 31 is rotatably installed on the first vertical roller table 62, and the second vertical roller 32 is rotatably installed on the second vertical roller table 63.

[0063] Specifically, as shown in the figure, Figures 1-5 the first vertical roller table 62 is slidingly installed on the vertical roller support 61 through at least a first screw nut pair, the first screw nut pair comprises a first screw rod 64 installed on the vertical roller support 61 and a first nut installed on the first vertical roller table 62;

[0064] screwing the first screw rod 64 drives the first vertical roller table 62 to move axially along the vertical roller support 61, so as to adjust the distance between the first vertical roller 31 and the second vertical roller 32.

[0065] Specifically, as shown in the figure, Figures 1-5 a guide roller part is further arranged between the horizontal roller part and the vertical roller part;

[0066] the guide roller part comprises a guide roller support 71, a first guide roller 72 and a second guide roller 73, the guide roller support 71 is installed on the operation base 1, the first guide roller 72 is slidingly installed on the guide roller support 71, the second guide roller 73 is fixedly installed on the operation base 1, a first guide groove 721 is arranged on the outer wall surface of the first guide roller 72, a second guide groove 731 is arranged on the outer wall surface of the second guide roller 73, the first guide groove 721 and the second guide groove 731 are near-circular structures, and the first guide groove 721 and the second guide groove 731 jointly form a guide channel 74.

[0067] Specifically, as shown in the figure, Figures 1-5 the guide roller support 71 is slidingly provided with a first guide table 75 and fixedly provided with a second guide table 76;

[0068] the first guide roller 72 is rotatably installed on the first guide table 75, and the second guide roller 73 is rotatably installed on the second guide table 76.

[0069] Specifically, as shown in the figure, Figures 1-3As shown, the first guide table 75 is slidingly mounted on the guide roller support 71 through at least a second screw-nut pair, which includes a second screw 77 mounted on the guide roller support 71 and a first nut mounted on the first guide table 75;

[0070] The second screw 77 is screwed to drive the first guide table 75 to move axially along the guide roller support 71, thereby adjusting the distance between the first guide roller 72 and the second guide roller 73.

[0071] Specifically, as shown, the drug core wire roll forming device further comprises a driving device, which includes a driving motor 81, a first transmission wheel 82, a second transmission wheel 83 and a synchronous belt; ​

[0072] The driving motor 81 is mounted on the operation base 1, the first transmission wheel 82 is coaxially arranged with the second guide roller 73, the second transmission wheel 83 is coaxially arranged with the second vertical roller 32, and the synchronous belt is adapted to connect the first transmission wheel 82 and the second transmission wheel 83.

[0073] In this embodiment, the driving motor 81 drives the first transmission wheel 82 to rotate counterclockwise, which drives the second transmission wheel 83 to rotate counterclockwise through the synchronous belt, thereby driving the second guide roller 73 and the second vertical roller 32 to rotate counterclockwise to move the steel belt.

[0074] In this embodiment, the external traction device sends the steel belt into the first cavity 23 of the horizontal roller part, the first and second horizontal roller driving motors 81 are started to drive the two horizontal rollers to rotate in the same direction, the V-shaped groove is used to pre-press the steel belt to form a U-shaped open slot, the U-shaped steel belt moves to the lower side of the powder filling part, the filler 42 is aligned with the U-shaped slot opening, and the powder is quantitatively injected into the slot;

[0075] The U-shaped steel belt filled with powder is guided through the guide channel 74 of the guide roller part to adjust the running direction and prevent deviation, and the U-shaped steel belt is further rounded through the nearly circular guide channel 74, the driving device drives the second guide roller 73 and the second vertical roller 32 through the synchronous belt to keep the conveying speed synchronized;

[0076] The steel belt enters the second cavity 33 of the vertical roller part, the first vertical roller 31 and the second vertical roller 32 apply radial pressure to the edges of the steel belt through the circular arc groove, gradually close the U-shaped opening, form a sealed tubular structure wrapping the powder, and during the closing process, the rotating speed of the vertical roller is matched with that of the horizontal roller to avoid overflow of the powder or deformation of the steel belt;

[0077] ​When the horizontal roller gap needs to be adjusted, the first and second horizontal roller tables 52 are pushed to move along the guide rail by the telescopic rod of the horizontal roller movable part, the V-shaped groove gap is changed, and the steel belt of different widths is matched; similarly, the vertical roller gap adjustment is to rotate the first lead screw 64 to drive the first vertical roller table to move, the arc groove closing pressure is adjusted, and the pipe diameter accuracy is ensured; the guide roller gap adjustment is to adjust the position of the first guide table by the second lead screw 77, and the thickness change of the steel belt is matched.

[0078] The formed flux-cored wire is output through the vertical roller part and enters the subsequent process to complete the continuous production.

[0079] The above-described specific embodiments further specifically describe the technical problems, technical solutions and beneficial effects solved by the utility model, and it should be understood that the above-described specific embodiments are only specific embodiments of the utility model and are not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A drug core wire roll forming apparatus characterized by, The device comprises: an operation base (1); a horizontal roller component, which comprises a first horizontal roller (21) and a second horizontal roller (22), the outer wall surface of the first horizontal roller (21) is provided with a first horizontal roller groove (211), the outer wall surface of the second horizontal roller (22) is provided with a second horizontal roller groove (221), the first horizontal roller groove (211) and the second horizontal roller groove (221) are in V-shaped structure, and the first horizontal roller groove (211) and the second horizontal roller groove (221) enclose a first cavity; a vertical roller component, which comprises a first vertical roller (31) and a second vertical roller (32), the outer wall surface of the first vertical roller (31) is provided with a first vertical roller groove (311), the outer wall surface of the second vertical roller (32) is provided with a second vertical roller groove (321), the first vertical roller groove (311) and the second vertical roller groove (321) are in circular arc structure, and the first vertical roller groove (311) and the second vertical roller groove (321) enclose a second cavity (33); a medicine powder pouring component, which comprises a pouring support (41) and a pouring device (42), the pouring support (41) is installed on the operation base (1), and the pouring device (42) is installed on the pouring support (41); an external traction device is used to convey a steel strip into the first cavity, the V-shaped groove of the first horizontal roller (21) and the second horizontal roller (22) is used to pre-press the steel strip to form a U-shaped open slot, the pouring device (42) of the medicine powder pouring component is aligned with the U-shaped open slot and pours medicine powder into the U-shaped open slot; the steel strip enters the second cavity (33) of the vertical roller component, and the circular arc groove of the first vertical roller (31) and the second vertical roller (32) is used to roll the U-shaped steel strip to close the edges of the steel strip on both sides to form a tubular structure, so that the medicine powder is wrapped to complete the forming of the welding wire.

2. The device according to claim 1, characterized in that: a first horizontal roller table (51) and a second horizontal roller table (52) are slidably installed on the operation base (1), a first installation cavity is arranged in the first horizontal roller table (51), a second installation cavity is arranged in the second horizontal roller table (52), a first horizontal roller driving motor is arranged in the first installation cavity, a second horizontal roller driving motor is arranged in the second installation cavity, the movable end of the first horizontal roller driving motor is connected with the first horizontal roller (21), and the movable end of the second horizontal roller driving motor is connected with the second horizontal roller (22).

3. The device according to claim 2, characterized in that: the first horizontal roller table (51) is slidably installed on the operation base (1) through at least one first guide rail sliding block pair; wherein the first guide rail sliding block pair comprises: a first guide rail installed on the operation base (1); a sliding block installed at the bottom of the first horizontal roller table (51); the second horizontal roller table (52) is slidably installed on the operation base (1) through at least one second guide rail sliding block pair. The second guide rail slider pair comprises: A second guide rail mounted on the operation base (1); A second slider mounted on the bottom of the second horizontal roller table (52).

4. The device according to claim 3, characterized in that: It further comprises a horizontal roller movable part, which comprises a horizontal roller movable support (53), a first telescopic rod (54) and a second telescopic rod (55), the horizontal roller movable support (53) is mounted on the operation base (1), the first telescopic rod (54) and the second telescopic rod (55) are both mounted on the horizontal roller movable support (53), the movable end of the first telescopic rod (54) is connected with the first horizontal roller table (51), and the movable end of the second telescopic rod (55) is connected with the second horizontal roller table (52).

5. The device according to claim 1, characterized in that: The operation base (1) is further provided with a vertical roller support (61), the first vertical roller table (62) is slidably mounted on the vertical roller support (61), and the second vertical roller table (63) is fixedly mounted on the vertical roller support (61), the first vertical roller (31) is rotatably mounted on the first vertical roller table (62), and the second vertical roller (32) is rotatably mounted on the second vertical roller table (63).

6. The device according to claim 5, characterized in that: The first vertical roller table (62) is slidably mounted on the vertical roller support (61) through at least one first screw-nut pair, the first screw-nut pair comprises a first screw (64) mounted on the vertical roller support (61) and a first nut mounted on the first vertical roller table (62); The first screw (64) is screwed to drive the first vertical roller table (62) to move axially along the vertical roller support (61), so as to adjust the distance between the first vertical roller (31) and the second vertical roller (32).

7. The device according to claim 6, characterized in that: A guide roller part is further arranged between the horizontal roller part and the vertical roller part; The guide roller part comprises a guide roller support (71), a first guide roller (72) and a second guide roller (73), the guide roller support (71) is mounted on the operation base (1), the first guide roller (72) is slidably mounted on the guide roller support (71), and the second guide roller (73) is fixedly mounted on the operation base (1), a first guide groove (721) is arranged on the outer wall surface of the first guide roller (72), a second guide groove (731) is arranged on the outer wall surface of the second guide roller (73), the first guide groove (721) and the second guide groove (731) are in the shape of a near circle, and the first guide groove (721) and the second guide groove (731) jointly form a guide channel (74).

8. The device according to claim 7, characterized in that: The first guide table (75) is slidably installed on the guide roller support (71), and the second guide table (76) is fixedly installed; The first guide roller (72) is rotatably installed on the first guide table (75), and the second guide roller (73) is rotatably installed on the second guide table (76).

9. The apparatus according to claim 8, wherein: The first guide table (75) is slidably installed on the guide roller support (71) through at least one second screw nut pair, the second screw nut pair comprising a second screw (77) installed on the guide roller support (71) and a first screw nut installed on the first guide table (75); Screwing the second screw (77) drives the first guide table (75) to move axially along the guide roller support (71), thereby adjusting the distance between the first guide roller (72) and the second guide roller (73).

10. The apparatus according to claim 9, wherein: Further comprising a driving device, the driving device comprising a driving motor (81), a first transmission wheel (82), a second transmission wheel (83) and a synchronous belt; The driving motor (81) is installed on the operation base (1), the first transmission wheel (82) is coaxially arranged with the second guide roller (73), the second transmission wheel (83) is coaxially arranged with the second vertical roller (32), and the synchronous belt is adapted to connect the first transmission wheel (82) and the second transmission wheel (83).

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