CN117921096B

CN117921096B - Profile cutting device

Info

Publication number: CN117921096B
Application number: CN202410324595.XA
Authority: CN
Inventors: 路冰; 闫玉光
Original assignee: Shandong Weisu Aluminum Co ltd
Current assignee: Shandong Weisu Aluminum Co ltd
Priority date: 2024-03-21
Filing date: 2024-03-21
Publication date: 2024-06-04
Anticipated expiration: 2044-03-21
Also published as: CN117921096A

Abstract

The invention discloses a section bar cutting device, which comprises a base, wherein an upper frame is connected to the upper side of the base, two rows of first driving parts are fixedly connected to the lower side of the base, first rotating shafts are fixedly connected to the output ends of the first driving parts, the first rotating shafts are rotationally connected to the base through bearings, first cutting wheels are fixedly connected to the upper ends of the first rotating shafts, the two rows of first cutting wheels are in one-to-one correspondence, and the distance between the two first cutting wheels which are correspondingly arranged is sequentially reduced from a feeding end to a discharging end; the upper frame is connected to the base through a first lifting piece, the upper frame is rotatably connected with a second rotating shaft through a bearing, the lower end of the second rotating shaft is fixedly connected with a second cutting wheel, and a second driving piece is connected to the second rotating shaft. The invention divides the cutting process into a plurality of steps, and only cuts a small distance each time, and is not easy to incline on the cutting surface, thereby improving the cutting accuracy.

Description

Profile cutting device

Technical Field

The invention belongs to the technical field of cutting equipment, and particularly relates to a section bar cutting device.

Background

Referring to fig. 1-3, the profile to be cut includes a main body portion 01 located at a lower side, two edges of the upper side of the main body portion 01 are provided with a first protrusion 02, a middle portion of the upper side of the main body portion 02 is provided with a second protrusion 03, the second protrusion includes a lower portion 031, a middle portion 032 and an upper portion 033, the inner side of the middle portion 032 is clamped with a rubber strip 04, when the waste profile is recovered, the rubber strip 04 needs to be removed, but due to the fact that the rubber strip 04 is tightly attached, the rubber strip can not be taken out in a drawing mode, the middle portion 032 needs to be cut, and then the rubber strip 04 is peeled off manually or by other devices. Therefore, there is a need for a profile cutting device that can cut the middle portion 032.

It should be noted that, when the profile is produced, in order to firmly fix the rubber strip 04, the upper end of the rubber strip 04 is embedded above the middle portion 032, and the lower end is embedded below the middle portion 032, taking the upper side as an example, when cutting, if the height C is taken as the cutting position, the upper end of the rubber strip 04 is still difficult to be taken out, and if the height B is taken as the cutting position, the cutting surface is inclined, and the cutting edge is inclined easily due to the fact that the cutting surface is inclined after one-time cutting, so that the cutting is inaccurate, therefore, a profile cutting device capable of cutting along the height B and not inclined when cutting the inclined surface is needed.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a section bar cutting device which has the advantages that the section bar cutting device can cut along the height B and can not incline when cutting an inclined plane, and solves the problems in the prior art.

The invention is realized in such a way, the profile cutting device comprises a base, wherein the upper side of the base is connected with an upper frame, the lower side of the base is fixedly connected with two rows of first driving parts, the output ends of the first driving parts are fixedly connected with first rotating shafts, the first rotating shafts are rotationally connected to the base through bearings, the upper ends of the first rotating shafts are fixedly connected with first cutting wheels, the two rows of first cutting wheels are in one-to-one correspondence, and the distance between the two first cutting wheels which are correspondingly arranged is sequentially reduced from a feeding end to a discharging end; the upper frame is connected to the base through a first lifting piece, the upper frame is rotatably connected with a second rotating shaft through a bearing, the lower end of the second rotating shaft is fixedly connected with a second cutting wheel, and a second driving piece is connected to the second rotating shaft.

As a preferable mode of the invention, the first driving piece is set as a first motor, the first motor is fixedly connected to the lower side of the base, and the output end of the first motor is fixedly connected to the lower end of the first rotating shaft through a coupler;

the second driving piece comprises a clamping rod fixedly connected to the lower end of the second rotating shaft, a clamping groove is formed in the upper end of the first rotating shaft, and the clamping rod is inserted into the clamping groove.

As preferable, the lower side of the first cutting wheel is fixedly connected with a fixed ring, the fixed ring is sleeved on a first rotating shaft, a first clamping hole communicated with the clamping groove is formed in the first rotating shaft, and a second clamping hole aligned with the first clamping hole is formed in the fixed ring; the bottom of the clamping groove is fixedly connected with a fixed block, the side edge of the fixed block is fixedly connected with a spring, one end of the spring, which is far away from the fixed block, is fixedly connected with a wedge block, one side of the wedge block, which is far away from the spring, is fixedly connected with a round rod, and the round rod can be clamped in the first clamping hole and the second clamping hole; the side of the clamping rod is provided with a containing groove matched with the wedge-shaped block.

As the preferable mode of the invention, the second clamping holes are vertically provided with a plurality of groups, and the round rod can be clamped into one of the second clamping holes.

As the preferable mode of the invention, the upper side of the fixed block is fixedly connected with a first stud, and the lower end of the clamping rod is provided with a cylindrical groove capable of accommodating the first stud.

As the preferable choice of the invention, the base comprises a transverse frame and a bearing seat, wherein the transverse frame is provided with two groups of transverse frames which are parallel to each other, two ends of the bearing seat are respectively and fixedly connected with the two transverse frames, and the first driving piece is fixedly connected with the lower side of the bearing seat.

As the preferable mode of the invention, a plurality of bolt holes are arranged on the transverse frame, and the bearing seat is fixedly connected in part of the bolt holes through bolts.

As the preferable mode of the invention, the bearing seat is fixedly connected with a limiting block, the upper side of the limiting block is fixedly connected with a limiting cylinder, and the limiting block and the limiting cylinder are connected with the first rotating shaft through bearings.

As the preferable mode of the invention, the pedestal is fixedly connected with the stand, the stand is sleeved with the mounting seat, and the mounting seat is fixedly connected with the limiting wheel.

As a preferred aspect of the present invention, the second driving member includes a collar, on which at least two upper clamping columns and at least two lower clamping columns are fixedly connected; the first cutting wheel is provided with a lower clamping hole, and the second cutting wheel is provided with an upper clamping hole; the lantern ring is positioned between the first cutting wheel and the second cutting wheel, the upper clamping column is clamped in the upper clamping hole, and the lower clamping column is clamped in the lower clamping hole; the diameter size of the partial lantern ring is smaller than the diameter sizes of the first cutting wheel and the second cutting wheel, and the diameter size of the partial lantern ring is larger than the diameter sizes of the first cutting wheel and the second cutting wheel.

Compared with the prior art, the invention has the following beneficial effects:

The first cutting wheel and the second cutting wheel are of equal diameter, and when the profile to be cut is pushed into the feed end, the middle of the profile is precisely aligned with the two cutting wheels. The first cutting wheel starts to rotate through the linkage of the first driving piece and the first rotating shaft. Likewise, the linkage of the second drive member and the second spindle causes the second cutting wheel to also begin to rotate. The two cutting wheels respectively cut the upper edge and the lower edge of the middle part of the profile, thereby realizing the complete cutting of the part. The rubber strip may then be peeled off manually or otherwise. Since the distance between the two first cutting wheels is gradually reduced, this ensures that each cutting wheel cuts only one minute kerf. This design mode ensures that each cutting wheel performs only a small cutting operation, avoiding the tilting problem that may occur during the cutting process, thereby significantly improving the accuracy and stability of the overall cut.

Drawings

FIG. 1 is a schematic perspective view of a profile to be cut according to the invention;

FIG. 2 is a schematic view of the front view of the profile to be cut according to the invention;

FIG. 3 is an enlarged schematic view of the portion A of FIG. 2;

fig. 4 is a schematic perspective view of a profile cutting device according to embodiment 1 of the present invention;

FIG. 5 is an enlarged schematic view of the portion D of FIG. 4 according to embodiment 1 of the present invention;

Fig. 6 is a schematic right-side view of a profile cutting device according to embodiment 1 of the present invention;

FIG. 7 is a schematic cross-sectional view of the portion E-E of FIG. 6 provided in example 1 of the present invention;

Fig. 8 is an enlarged schematic view of the structure of the portion F in fig. 7 provided in embodiment 1 of the present invention;

fig. 9 is a schematic perspective view of a profile cutting device according to embodiment 2 of the present invention;

fig. 10 is a schematic front view of a profile cutting device according to embodiment 2 of the present invention.

In the figure: 1. a base; 2. loading on a frame; 3. a first driving member; 4. a first rotating shaft; 5. a first cutting wheel; 6. a first lifting member; 7. a second rotating shaft; 8. a second cutting wheel; 9. a second driving member; 91. a clamping rod; 92. a clamping groove; 10. a fixing ring; 11. a first clamping hole; 12. a second clamping hole; 13. a fixed block; 14. a spring; 15. wedge blocks; 16. a round bar; 17. a receiving groove; 18. a first stud; 19. a cylindrical groove; 20. a cross frame; 21. a bearing seat; 22. bolt holes; 23. a limiting block; 24. a limiting cylinder; 25. a vertical frame; 26. a mounting base; 27. a limiting wheel; 93. a collar; 94. a clamping column is arranged; 95. and (5) clamping the column.

01. A main body portion; 02. a first protrusion; 03. a second protrusion; 031. a lower part; 032. a middle part; 033. an upper part; 04. rubber strips.

Detailed Description

For a further understanding of the invention, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.

The structure of the present invention will be described in detail with reference to the accompanying drawings.

An embodiment 1, referring to fig. 1-4, fig. 6 and fig. 7, the profile cutting device provided by the embodiment of the invention comprises a base 1, wherein an upper frame 2 is connected to the upper side of the base 1, two rows of first driving pieces 3 are fixedly connected to the lower side of the base 1, first rotating shafts 4 are fixedly connected to the output ends of the first driving pieces 3, the first rotating shafts 4 are rotatably connected to the base 1 through bearings, first cutting wheels 5 are fixedly connected to the upper ends of the first rotating shafts 4, the two rows of first cutting wheels 5 are in one-to-one correspondence, and the intervals between the two first cutting wheels 5 which are correspondingly arranged are sequentially reduced from a feeding end to a discharging end;

The upper frame 2 is connected to the base 1 through a first lifting member 6, the upper frame 2 is rotatably connected with a second rotating shaft 7 through a bearing, the lower end of the second rotating shaft 7 is fixedly connected with a second cutting wheel 8, and the second rotating shaft 7 is connected with a second driving member 9.

Illustratively, the first cutting wheel 5 and the second cutting wheel 8 are of equal diameter. The section bar to be cut is pushed into the device from the feeding end, the second raised middle 032 of the section bar is aligned with the first cutting wheel 5 and the second cutting wheel 8, the first driving piece 3 can drive the first cutting wheel 5 to rotate through the first rotating shaft 4, the second driving piece 9 can drive the second cutting wheel 8 to rotate through the second rotating shaft 7, so that the first cutting wheel 5 and the second cutting wheel 8 can cut the upper edge and the lower edge of the second raised middle 032 of the section bar, the second raised middle 032 of the section bar can be cut, and then the rubber strip 04 is peeled off through manual operation or other equipment.

Since the distance between the two first cutting wheels 5 arranged opposite to each other decreases in sequence, each cutting wheel cuts only one minute slot, the next cutting wheel continues to cut in the slot, and so on until the upper and lower edges of the middle part 032 are cut off. Through this setting, divide into a plurality of step with the process of cutting, only cut a minute distance at a time, be difficult for inclining on the cutting plane, consequently can improve the precision of cutting.

And for the cutting process, if the size of the cut is large, it is generally necessary to move the cutting wheel to achieve the large-size cut. However, the movement of the cutting wheel usually involves a horizontal movement of the driving member, which is prone to inaccurate cutting. Through this setting, the horizontal position of cutting wheel and driving piece is invariable all the time to can increase the life and the cutting accuracy of this device. The first lifting member 6 can be set to be a hydraulic push rod or an electric push rod or a screw rod, the height of the upper frame 2 can be adjusted through the first lifting member 6, and then the height of the second cutting wheel 8 can be adjusted, and under the condition that the height of the first cutting wheel 5 is unchanged, the distance between the first cutting wheel 5 and the second cutting wheel 8 can be changed, so that profiles with different heights in the middle 032 can be cut.

For example, the first driving member 3 and the second driving member 9 may be configured as a motor, or a combination of a motor and a speed reducer, which are conventional in the art, and will not be described herein. Of course, the first driving member 3 and the second driving member 9 may be provided as follows:

Referring to fig. 8, the first driving member 3 is configured as a first motor, the first motor is fixedly connected to the lower side of the base 1, and an output end of the first motor is fixedly connected to the lower end of the first rotating shaft 4 through a coupling; the second driving member 9 includes a clamping rod 91 fixedly connected to the lower end of the second rotating shaft 7, and a clamping groove 92 is formed in the upper end of the first rotating shaft 4, and the clamping rod 91 is inserted into the clamping groove 92.

Through this setting, on the one hand, first motor drives first cutting wheel 5 through first pivot 4 and rotates to simultaneously, first pivot 4 accessible card rod 91's transmission drives second pivot 7 and rotates, thereby realizes the syntropy constant speed rotation of second cutting wheel 8 and first cutting wheel 5, and the upper edge and the lower edge of the middle part 032 of this scheme synchronous cutting section bar of being convenient for. On the other hand, since the clamping rod 91 is inserted into the clamping groove 92, the clamping rod 91 moves upwards by a certain distance and does not separate from the clamping groove 92, so that the second rotating shaft 7 and the second cutting wheel 8 can be allowed to move up and down by a certain distance, and at this time, the driving of the second cutting wheel 8 can still be realized.

And, also can make the draw-in bar 91 break away from draw-in groove 92 through the support upwards removal, can realize at this moment that only first cutting wheel 5 cuts, and second cutting wheel 8 does not cut to can cut off middle part 032 and upper portion 033 an organic whole, this function can be as the function of expanding of this device, makes this device function diversified.

Referring to fig. 8, a fixing ring 10 is fixedly connected to the lower side of the first cutting wheel 5, the fixing ring 10 is sleeved on the first rotating shaft 4, a first clamping hole 11 communicated with the clamping groove 92 is formed in the first rotating shaft 4, and a second clamping hole 12 aligned with the first clamping hole 11 is formed in the fixing ring 10; the bottom of the clamping groove 92 is fixedly connected with a fixed block 13, the side edge of the fixed block 13 is fixedly connected with a spring 14, one end, far away from the fixed block 13, of the spring 14 is fixedly connected with a wedge block 15, one side, far away from the spring 14, of the wedge block 15 is fixedly connected with a round rod 16, and the round rod 16 can be clamped in the first clamping hole 11 and the second clamping hole 12; the side surface of the clamping rod 91 is provided with a containing groove 17 matched with the wedge-shaped block 15.

Through this setting, when the draw-in bar 91 inserts draw-in groove 92, can promote wedge 15 removal, and then make round bar 16 joint in first draw-in hole 11 and second draw-in hole 12, through this setting, can carry out quick fixed to first cutting wheel 5. Conversely, when the clamping rod 91 is withdrawn from the clamping groove 92, the spring 14 can pull the wedge 15 to reset, so that the round bar 16 is withdrawn from the second clamping hole 12, in this way, the first cutting wheel 5 and the fixing ring 10 can be quickly detached.

Preferably, the second clamping holes 12 are vertically provided with a plurality of groups (not shown), and the round rod 16 can be clamped into one of the second clamping holes 12. During installation, by adjusting the height of the fixing ring 10, the round bar 16 can be snapped into a different second snap-in hole 12, so that the height of the first cutting wheel 5 can be adjusted.

Referring to fig. 8, a first stud 18 is fixedly connected to the upper side of the fixing block 13, and a cylindrical groove 19 capable of accommodating the first stud 18 is formed at the lower end of the clamping rod 91.

With this arrangement, on the one hand, the first stud 18 can be inserted into the cylindrical groove 19, and the clamping rod 91 and the clamping groove 92 can be corrected by the cooperation of the first stud 18 and the cylindrical groove 19, so that the clamping rod 91 can be accurately inserted into the clamping groove 92. On the other hand, by this scheme, there can be two usage modes:

Mode one: if the first cutting wheel 5 needs to be frequently disassembled, the clamping rod 91 is always positioned in the clamping groove 92 in normal use, and when the first cutting wheel 5 needs to be disassembled, the clamping rod 91 is only required to be pulled out of the clamping groove 92 to release the fixation of the first cutting wheel 5.

Mode two: if the clamping rod 91 is required to be pulled out of the clamping groove 92, the first cutting wheel 5 can still be fixed, at the moment, a threaded sleeve is sleeved on the stud, and the edge of the threaded sleeve is abutted against the wedge 15. At this time, when the clamping rod 91 is pulled out of the clamping groove 92, the threaded sleeve can still abut against the wedge 15, that is, the first cutting wheel 5 can still be fixed at this time, and the spring 14 can only pull the wedge 15 to reset when the threaded sleeve is unscrewed from the first stud 18. It should be noted that, when the axial length of the threaded sleeve is smaller than that of the first stud 18, the threaded sleeve may be located at the bottom of the stud during installation, so as not to obstruct the insertion of the clip 91 into the clip slot 92. The outer edge of the sleeve is formed as a circumferential surface to facilitate screwing in or unscrewing of the sleeve (if formed as a prismatic shape, the wedge 15 may prevent rotation thereof).

Referring to fig. 4, the base 1 includes a cross frame 20 and a bearing seat 21, the cross frames 20 are provided with two groups and are parallel to each other, two ends of the bearing seat 21 are respectively and fixedly connected to the two cross frames 20, and the first driving member 3 is fixedly connected to the lower side of the bearing seat 21. Illustratively, the cross frame 20 is provided as an H-frame.

Referring to fig. 4, the cross frame 20 is provided with a plurality of bolt holes 22, and the bearing seat 21 is fixedly connected to a part of the bolt holes 22 through bolts. With this arrangement, the position of the carrier 21 can be adjusted.

Referring to fig. 5, a limiting block 23 is fixedly connected to the bearing seat 21, a limiting cylinder 24 is fixedly connected to the upper side of the limiting block 23, and both the limiting block 23 and the limiting cylinder 24 are connected to the first rotating shaft 4 through bearings.

With this arrangement, the stability of the first shaft 4 can be improved, preventing the first shaft 4 from bending or swinging.

Referring to fig. 4, the base 1 is fixedly connected with a stand 25, the stand 25 is sleeved with a mounting seat 26, and the mounting seat 26 is fixedly connected with a limiting wheel 27. By this arrangement, the profile can be placed upside down, with the spacing wheel 27 pressed against the bottom of the profile body, effecting the cut. It should be noted that, adjusting the height of the limiting wheel 27 can compress profile bodies of different sizes.

Embodiment 2, see fig. 9 and 10, and embodiment 1 are different in that the second driving member 9 includes a collar 93, and at least two upper clamping columns 94 and at least two lower clamping columns 95 are fixedly connected to the collar 93; the first cutting wheel 5 is provided with a lower clamping hole, and the second cutting wheel 8 is provided with an upper clamping hole; the collar 93 is located between the first cutting wheel 5 and the second cutting wheel 8, the upper clamping post 94 is clamped in the upper clamping hole, and the lower clamping post 95 is clamped in the lower clamping hole; a part of the collar 93 has a smaller diameter than the first and second cutting wheels 5, 8 and a part of the collar 93 has a larger diameter than the first and second cutting wheels 5, 8.

For convenience of explanation, the collar 93 having a smaller diameter size than the first and second cutting wheels 5 and 8 is referred to as a first type collar (e.g., the collar located at both ends in fig. 9), and the collar 93 having a larger diameter size than the first and second cutting wheels 5 and 8 is referred to as a second type collar (e.g., the collar located at the middle in fig. 9).

Through this setting, on the one hand, the first type lantern ring does not contact with the section bar, and its function is to first cutting wheel 5 and second cutting wheel 8 transmission, and whole transmission process is: the first driving piece 3 drives the first cutting wheel 5 to rotate through the first rotating shaft 4, and the first cutting wheel 5 drives the second cutting wheel 8 to rotate through the lower clamping column 95, the lantern ring 93 and the upper clamping column 94.

On the other hand, the diameter size of the second type lantern ring is larger than the diameters of the first cutting wheel 5 and the second cutting wheel 8, so that the edge of the second type lantern ring can be attached to the outer surface of the middle 032 of the section bar, and the section bar can be stirred for continuous feeding when the second type lantern ring rotates. For example, when setting up, set up the lantern ring of second type at both ends, be close to the position of feed end and discharge end to can stir the whole process of section bar from the feeding to the ejection of compact. It should be noted that, because the second type collar is attached to the outer surface of the middle 032 of the profile, the first cutting wheel 5 and the second cutting wheel 8 that are matched with the second type collar cannot realize cutting, but are only responsible for driving the second type collar to rotate to realize feeding, so that the feeding speed of the profile can be controlled by controlling the rotating speed of the corresponding driving piece. Although only three sets of first 5 and second 8 cutting wheels are shown in each row in fig. 9 and 10, more than three sets may be provided at the time of production.

Preferably, the outer surface of the second type sleeve ring is provided with a static friction layer, so that friction force can be improved, and feeding is facilitated.

It should be noted that, the second driving member 9 of the present embodiment may be used alone or in combination with the second driving member 9 of embodiment 1, and the second driving member 9 of the present embodiment may carry a larger torque to prevent deformation of the clamping rod 91 and the clamping groove 92. Furthermore, it is also possible to feed only with a collar of the second type, the transmission between the remaining first cutting wheel 5 and the second cutting wheel 8 being effected by the second drive 9 of embodiment 1, i.e. the clamping bar 91 and the clamping groove 92.

Preferably, the upper clamping post 94 and/or the lower clamping post 95 are studs, the upper clamping post 94 is connected to the second cutting wheel 8 by a bolt, and/or the lower clamping post 95 is connected to the first cutting wheel 5 by a bolt. With this arrangement, the collar 93 can be mounted on the first cutting wheel 5 or the second cutting wheel 8.

The working principle of the invention is as follows: when the device is used, the section bar to be cut is pushed into the device from the feeding end, the second raised middle 032 of the section bar is aligned with the first cutting wheel 5 and the second cutting wheel 8, the first driving piece 3 can drive the first cutting wheel 5 to rotate through the first rotating shaft 4, the second driving piece 9 can drive the second cutting wheel 8 to rotate through the second rotating shaft 7, so that the first cutting wheel 5 and the second cutting wheel 8 can cut the upper edge and the lower edge of the second raised middle 032 of the section bar, the second raised middle 032 of the section bar can be cut, and then the rubber strip 04 is peeled off through manual operation or other equipment.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a section bar cutting device, includes base (1), base (1) upside is connected with puts up (2), its characterized in that: the device comprises a base (1), two rows of first driving pieces (3) are fixedly connected to the lower side of the base (1), first rotating shafts (4) are fixedly connected to the output ends of the first driving pieces (3), the first rotating shafts (4) are rotatably connected to the base (1) through bearings, first cutting wheels (5) are fixedly connected to the upper ends of the first rotating shafts (4), the two rows of first cutting wheels (5) are in one-to-one correspondence, and the distance between the two first cutting wheels (5) which are correspondingly arranged is sequentially reduced from a feeding end to a discharging end;

The upper frame (2) is connected to the base (1) through a first lifting part (6), the upper frame (2) is rotatably connected with a second rotating shaft (7) through a bearing, the lower end of the second rotating shaft (7) is connected with a second cutting wheel (8), and a second driving part (9) is connected to the second rotating shaft (7);

The first driving piece (3) is arranged as a first motor, the first motor is fixedly connected to the lower side of the base (1), and the output end of the first motor is fixedly connected to the lower end of the first rotating shaft (4) through a coupler;

The second driving piece (9) comprises a clamping rod (91) fixedly connected to the lower end of the second rotating shaft (7), a clamping groove (92) is formed in the upper end of the first rotating shaft (4), and the clamping rod (91) is inserted into the clamping groove (92);

The lower side of the first cutting wheel (5) is fixedly connected with a fixed ring (10), the fixed ring (10) is sleeved on the first rotating shaft (4), a first clamping hole (11) communicated with the clamping groove (92) is formed in the first rotating shaft (4), and a second clamping hole (12) aligned with the first clamping hole (11) is formed in the fixed ring (10);

The bottom of the clamping groove (92) is fixedly connected with a fixed block (13), the side edge of the fixed block (13) is fixedly connected with a spring (14), one end, far away from the fixed block (13), of the spring (14) is fixedly connected with a wedge block (15), one side, far away from the spring (14), of the wedge block (15) is fixedly connected with a round rod (16), and the round rod (16) can be clamped in the first clamping hole (11) and the second clamping hole (12);

the side surface of the clamping rod (91) is provided with a containing groove (17) matched with the wedge-shaped block (15);

the second clamping holes (12) are vertically provided with a plurality of groups, and the round rod (16) can be clamped into one of the second clamping holes (12).

2. A profile cutting apparatus as claimed in claim 1, wherein:

The upper side of the fixed block (13) is fixedly connected with a first stud (18), and the lower end of the clamping rod (91) is provided with a cylindrical groove (19) capable of accommodating the first stud (18).

3. A profile cutting apparatus as claimed in claim 1, wherein:

The base (1) comprises a transverse frame (20) and bearing seats (21), wherein the transverse frames (20) are provided with two groups and are parallel to each other, two ends of each bearing seat (21) are fixedly connected to the two transverse frames (20) respectively, and the first driving piece (3) is fixedly connected to the lower side of each bearing seat (21).

4. A profile cutting device as claimed in claim 3, characterized in that:

The transverse frame (20) is provided with a plurality of bolt holes (22), and the bearing seat (21) is fixedly connected in part of the bolt holes (22) through bolts.

5. A profile cutting device as claimed in claim 3, characterized in that:

The bearing seat (21) is fixedly connected with a limiting block (23), the upper side of the limiting block (23) is fixedly connected with a limiting cylinder (24), and the limiting block (23) and the limiting cylinder (24) are connected to the first rotating shaft (4) through bearings.

6. A profile cutting apparatus as claimed in claim 1, wherein:

The novel lifting device is characterized in that a stand (25) is fixedly connected to the base (1), a mounting seat (26) is sleeved on the stand (25), and a limiting wheel (27) is fixedly connected to the mounting seat (26).

7. A profile cutting apparatus as claimed in claim 1, wherein: the second driving piece (9) comprises a lantern ring (93), and at least two upper clamping columns (94) and at least two lower clamping columns (95) are fixedly connected to the lantern ring (93);

the first cutting wheel (5) is provided with a lower clamping hole, and the second cutting wheel (8) is provided with an upper clamping hole;

The lantern ring (93) is positioned between the first cutting wheel (5) and the second cutting wheel (8), the upper clamping column (94) is clamped in the upper clamping hole, and the lower clamping column (95) is clamped in the lower clamping hole;

part of the diameter of the collar (93) is smaller than the diameter of the first cutting wheel (5) and the second cutting wheel (8), and part of the diameter of the collar (93) is larger than the diameter of the first cutting wheel (5) and the second cutting wheel (8).