CN114535697A

CN114535697A - Disc belt type combined cutting saw device

Info

Publication number: CN114535697A
Application number: CN202210252182.6A
Authority: CN
Inventors: 崔东霞; 徐生荣; 马圣德; 马贞新; 潘京玉
Original assignee: Yantai Dafeng Machinery Technology Co ltd
Current assignee: Yantai Dafeng Machinery Technology Co ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-05-27

Abstract

The invention discloses a disc belt type combined slitting saw device which comprises a guide rail base, a workbench which can linearly reciprocate and is arranged on the guide rail base, a portal frame which is arranged on the guide rail base, a material clamping mechanism which is arranged on the guide rail base and can clamp materials on the workbench, a disc longitudinal cutting mechanism and a belt type transverse cutting mechanism which can lift, wherein the disc longitudinal cutting mechanism is arranged on the portal frame, a saw blade of the disc longitudinal cutting mechanism is vertical to the horizontal ground, and a certain angle included angle is formed between a transverse cutting saw wheel of the belt type transverse cutting mechanism and the horizontal ground. The invention can meet the requirement of processing materials with different rigidity, can simultaneously complete transverse cutting and longitudinal cutting, and is convenient to use.

Description

Disc belt type combined cutting saw device

Technical Field

The invention relates to the technical field of cutting processing, in particular to a disc belt type combined cutting saw device.

Background

Cutting machines are widely used in the metal and nonmetal industries and are designed into various forms according to different cutting materials or different cutting modes, for example: a circular saw blade type cutting device, a band saw type cutting device, a chain saw type cutting device or a wire saw type cutting device and the like, and the wire saw type cutting device has low rigidity, so the wire saw type cutting device is generally suitable for the field of agricultural harvesting or weeding and has a small application range; the band speed of the oil saw type cutting device is low, so that the working efficiency is low; the band saw type cutting device has good comprehensive performance, has the characteristics of relatively small equipment size, high band speed, long effective working time and high working efficiency, is not suitable for cutting materials with high rigidity, has low working efficiency and can ensure irregular cut; the circular saw blade type cutting device can effectively process the cutting thickness smaller than the radius size of the saw blade, the feed is stable in the cutting process, the service life of a cutter is long, the sawing precision is high, the precision is stable, but when the radius of the saw blade is larger, the equipment is larger in size, and the cutting thickness is different due to the fact that the cutting line track deviates due to the bottom of the circular saw blade; because most of the current common cutting and processing equipment only have one cutting form, realize horizontal or vertical processing when setting to the document, can satisfy horizontal and fore-and-aft processing simultaneously when setting up the ability double saw, but can only satisfy the cutting process of the material that corresponds the rigidity, in the production process, most of the cases can use the very big multiple material of rigidity difference, just need use many machines to accomplish processing man-hour, not only can improve the processing cost, increase equipment occupation space, and can cause the inconvenience of use owing to frequently changing equipment.

Disclosure of Invention

In view of the above, the present invention provides a disc belt type combined cutting saw device to solve the above technical problems.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a disc belt combination slitting saw device, includes the guide rail base, can follow straight reciprocating motion's setting and be in workstation and setting on the guide rail base are in portal frame on the guide rail base, wherein, still including setting up just can be to being located on the guide rail base material on the workstation carries out the material clamping mechanism of centre gripping and all sets up disc slitting mechanism on the portal frame and the belt crosscut mechanism that can go up and down, wherein, the saw bit of disc slitting mechanism is perpendicular with horizontal ground, certain angle contained angle has between belt crosscut mechanism's crosscut saw wheel and the horizontal ground.

Further, still include the range scanner that is used for measuring length, the range scanner is located one side of the feed end of belt crosscut mechanism.

Furthermore, the disc slitting mechanism further comprises a slitting beam fixedly connected with the portal frame, a transverse sliding block transversely arranged on the slitting beam in a sliding manner, a lifting sliding block longitudinally arranged on the transverse sliding block, a slitting main motor and a saw head frame which are fixedly arranged on the lifting sliding block, wherein the saw blade is arranged on the saw head frame, the slitting main motor is connected with the saw blade through a rotary transmission mechanism, the transverse sliding block is in driving connection with the transverse transmission mechanism, and the lifting sliding block is in driving connection with the first lifting transmission mechanism.

Further, the included angle of the angle between the crosscut saw wheel and the horizontal ground ranges from 65 degrees to 75 degrees.

Further, belt crosscut mechanism is still including setting up crane on the portal frame, the crane is connected with second lifting transmission mechanism drive, the both ends of crane respectively have one side mounting bracket, two of belt crosscut mechanism the crosscut saw wheel pin joint respectively is on the side mounting bracket that corresponds, and two the crosscut saw wheel is located respectively the workstation both sides, and the crosscut band saw blade cover is established two on the crosscut saw wheel, and one of them the crosscut saw wheel is connected with cutting transmission mechanism.

Furthermore, the cutting transmission mechanism comprises a transverse cutting main motor and a worm and gear speed reducer, the transverse cutting main motor is in driving connection with an input shaft of the worm and gear speed reducer through a belt transmission mechanism, and an output shaft of the worm and gear speed reducer is connected with the corresponding transverse cutting saw wheel.

Furthermore, the lifting frame is further provided with a fixed guide shifting fork and a movable guide shifting fork capable of moving along the transverse direction, and the lower edge of the crosscut band saw blade is positioned in a fork opening of the fixed guide shifting fork and a fork opening of the movable guide shifting fork.

Furthermore, two ends of the fork opening are respectively provided with two guide rollers, and the crosscutting band saw blade is limited between the two guide rollers positioned on the same end.

Further, the material clamping mechanism comprises a fixed side clamping plate and a fixed frame which are all fixedly arranged on the guide rail base and are respectively positioned on two sides of the workbench, a movable side clamping plate capable of moving is arranged on the fixed frame, and the movable side clamping plate is in driving connection with a clamping driving mechanism arranged on the fixed frame.

Further, still include guiding mechanism, guiding mechanism is including setting up on the guide rail base and be located respectively two side guide assembly of workstation both sides, side guide assembly includes the grudging post that a plurality of intervals set up, be equipped with the guide roll on the grudging post.

Further, the workbench is in driving connection with a workbench driving mechanism arranged on the guide rail base, and the workbench driving mechanism comprises a speed reducing motor fixedly arranged on the guide rail base, a driving gear fixedly connected with an output shaft of the speed reducing motor and a rack fixedly arranged on the bottom surface of the workbench and meshed with the driving gear.

Furthermore, a walking wheel set and a guide wheel set are arranged on the bottom surface of the workbench, the walking wheel set comprises a plurality of walking wheels which are arranged in a straight line, and the walking wheels walk along the horizontal top surface of the first guide rail of the guide rail base; the guide wheel set comprises a plurality of guide wheels which are arranged in a straight line, an annular guide conical groove is formed in the outer peripheral surface of each guide wheel, and the guide conical groove is matched with the top of a second guide rail of the guide rail base to enable the guide wheels to walk along the second guide rail.

The technical scheme can show that the invention has the advantages that: by arranging the disc longitudinal cutting mechanism and the belt type transverse cutting mechanism, the cutting processing of materials with different rigidity can be met, the transverse processing and the longitudinal processing can be simultaneously carried out, the sheet cutting can be realized by utilizing the belt type transverse cutting mechanism, the device is more applicable to materials, the cutting with different thicknesses can be realized, and the use is convenient; the use of a range scanner allows for high cut size accuracy.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a top view of the present invention.

Fig. 3 is a schematic structural diagram of the disc slitting mechanism of the present invention.

Fig. 4 is a schematic structural view of the belt type cross cutting mechanism of the present invention.

Fig. 5 is a schematic structural view of a movable guide fork of the belt type crosscutting mechanism of the present invention.

Fig. 6 is a front view of the guide rail mount of the present invention.

Fig. 7 is a schematic structural diagram of a table driving mechanism of the present invention.

List of reference numerals: the automatic cutting machine comprises a guide rail base 1, a first guide rail 11, a second guide rail 12, a workbench 2, a walking wheel set 21, a guide wheel set 22, a guide mechanism 3, a material clamping mechanism 4, a fixed side clamping plate 41, a movable side clamping plate 42, a clamping driving mechanism 43, a fixed frame 44, a portal frame 5, a disc longitudinal cutting mechanism 6, a longitudinal cutting cross beam 61, a transverse moving transmission mechanism 62, a lifting slide block 63, a first lifting transmission mechanism 64, a longitudinal cutting main motor 65, a saw head frame 66, a saw blade 67, a rotating transmission mechanism 68, a transverse moving slide block 69, a belt transverse cutting mechanism 7, a second lifting transmission mechanism 71, a lifting frame 72, a side mounting frame 721, a movable guide fork 722, a saw blade fixed guide fork 723, a guide roller 724, a transverse cutting saw wheel 73, a transverse cutting band saw blade 74, a cutting transmission mechanism 75, a distance measuring scanner 8, a workbench driving mechanism 9, a speed reducing motor 91, driving gears 92 and racks 93.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present application is further described with reference to fig. 1 to 7, and as shown in fig. 1 and 2, the disc belt type combined dicing saw device includes a guide rail base 1, a worktable 2 disposed on the guide rail base 1 and capable of moving linearly and reciprocally, a gantry 5 disposed on the guide rail base 1, a material clamping mechanism 4 disposed on the guide rail base 1 and capable of clamping a material disposed on the worktable 2, a range finder scanner 8 for measuring length, and a disc slitting mechanism 6 and a belt type slitting mechanism 7 both disposed on the gantry 5, wherein the material clamping mechanism 4 is disposed behind the disc slitting mechanism 6 and the belt type slitting mechanism 7 capable of moving up and down, the belt type slitting mechanism 7 is disposed between the disc slitting mechanism 6 and the material clamping mechanism 4, the range finder scanner 8 is mounted on a side surface of the material clamping mechanism 4, and the range scanner 8 is located at one side of the feeding end of the belt type transverse cutting mechanism 7, when the device cuts a workpiece, when the two ends of the workpiece are kept intact and are not cut, the range scanner 8 is used for determining the end position, after the determination is completed, and after any cutting size is input on a display screen, the driving mechanism of the workbench 2 drives the workbench 2 to move for fixed-length cutting, so that the convenience and the freedom are realized, the accurate cutting size of the material is ensured, the disc longitudinal cutting mechanism 6 and the belt type transverse cutting mechanism 7 are respectively located at two sides of the portal frame 5, wherein a saw blade 67 of the disc longitudinal cutting mechanism 6 is vertical to the horizontal ground, a certain angle is formed between a transverse cutting saw wheel 73 of the belt type transverse cutting mechanism 7 and the horizontal ground, so that the saw path is increased, the influence of the cutting efficiency caused by the clamping of the saw in the cutting process is avoided, and the disc longitudinal cutting mechanism 6 can cut the material with large rigidity and small thickness during the work, the belt type transverse cutting mechanism 7 can cut materials with small rigidity and large thickness, the disc longitudinal cutting mechanism 6 and the belt type transverse cutting mechanism 7 can be used for sequentially completing transverse cutting and longitudinal cutting for the materials with small rigidity and small thickness, the workbench 2 is driven to move when moving, the disc longitudinal cutting mechanism 6 can be utilized for completing continuous cutting or utilizing the belt type transverse cutting mechanism 7 for completing transverse cutting, and the automation degree of the cutting process is high.

This application still includes guiding mechanism 3, guiding mechanism 3 is including setting up just be located respectively on the guide rail base 1 two side guide assembly of 2 both sides of workstation, side guide assembly includes the grudging post that a plurality of intervals set up, be equipped with the guide roll on the grudging post, when the material removes the guide roll supports presses on the corresponding side of material, avoids therefore the vibration deflection of material removal in-process and influences the pay-off continuity, guiding mechanism 3 can realize the thick locate function of material thick location.

As shown in fig. 3, the disk slitting mechanism 6 further includes a slitting beam 61 fixedly connected to the gantry 5, a traverse block 69 transversely slidably disposed on the slitting beam 61, a lifting block 63 longitudinally slidably disposed on the traverse block 69, and a slitting main motor 65 and a saw head frame 66 both fixedly disposed on the lifting block 63, the saw blade 67 is disposed on the saw head frame 66, the slitting main motor 65 is connected to the saw blade 67 through a rotation transmission mechanism 68, the traverse block 69 is drivingly connected to a traverse transmission mechanism 62, the lifting block 63 is drivingly connected to a first lifting transmission mechanism 64, wherein the traverse transmission mechanism 62 and the first lifting transmission mechanism 64 are both screw-nut mechanisms, a screw of the traverse transmission mechanism 62 is disposed on the slitting beam 61, a screw of the first lifting transmission mechanism 64 is disposed on the lifting block 63, the longitudinal cutting main motor 65 is installed at the top of the saw head frame 66, the position of the longitudinal cutting main motor is adjustable, tensioning adjustment is facilitated, a saw cover shell of the saw head frame 66 is arranged above the transverse cutting saw wheel 73 in a covering mode, danger caused by flying of powder fragments to a human body is avoided, and damage caused by scattered powder fragments to the environment is also avoided.

As shown in fig. 4, the belt type traverse mechanism 7 further includes a lifting frame 72 slidably disposed on the gantry 5, the lifting frame 72 is drivingly connected to the second lifting transmission mechanism 71, two ends of the lifting frame 72 respectively have a side mounting rack 721, two traverse saw wheels 73 of the belt type traverse mechanism 7 are respectively pivoted on the corresponding side mounting racks 721, the two traverse saw wheels 73 are respectively located on two sides of the workbench 2, the traverse saw wheels 73 are respectively located in the corresponding protective casings to avoid accidental injuries, the traverse saw blade 74 is sleeved on the two traverse saw wheels 73, one of the traverse saw wheels 73 is connected to the cutting transmission mechanism 75, wherein the second lifting transmission mechanism 71 includes two linear driving sliding tables respectively vertically and fixedly mounted on side frames of the gantry 5; the cutting transmission mechanism 75 comprises a transverse cutting main motor and a worm gear speed reducer, the transverse cutting main motor is in driving connection with an input shaft of the worm gear speed reducer through a belt transmission mechanism, an output shaft of the worm gear speed reducer is connected with the transverse cutting saw wheel 73 correspondingly, the transverse cutting main motor is fixedly installed at the top of the lifting frame 72, and by adopting the structure, the structure is compact, the influence of the gravity of the transverse cutting main motor on the deformation of the lifting frame 72 can be reduced, the service life is long, and the thickness of the belt type transverse cutting mechanism 7 can be reduced.

Preferably, the angle included angle between the crosscut saw wheel 73 and the horizontal ground is 65-75 degrees, so that the working process is reliable and smooth, and the waste of materials is less.

Optimally, the angle between the crosscutting saw wheel 73 and the horizontal ground is in the range of 70 °.

The lifting frame 72 is further provided with a fixed guide shifting fork 723 and a movable guide shifting fork 722 capable of moving along the transverse direction, the lower edge of the crosscut band saw blade 74 is positioned in a fork opening of the fixed guide shifting fork 723 and a fork opening of the movable guide shifting fork 722, the fixed guide shifting fork 723 is close to the driving crosscut saw wheel 73, the movable guide shifting fork 722 is close to the driven crosscut saw wheel 73, the fixed guide shifting fork 723 is arranged to enable the crosscut band saw blade 74 to be accurately cut into materials, the movable guide shifting fork 722 is arranged to ensure that the crosscut band saw blade 74 can reliably enter a guide groove corresponding to the crosscut saw wheel 73, the situation that the crosscut band saw blade 74 deviates and is separated from the crosscut saw wheel 73 due to friction force in the cutting process is avoided, the working continuity is ensured, and the position of the movable guide shifting fork 722 is adjusted according to materials with different widths to enable the movable guide shifting fork 722 to be close to the materials, the degree of deformation of the cross cutting band saw blade 74 is reduced, and the cutting accuracy is improved.

As shown in fig. 5, the two ends of the fork opening are respectively provided with two guide rollers 724, the transverse cutting band saw blade 74 is limited to be located at two ends of the same end between the guide rollers 724, the guide rollers 724 are arranged to avoid friction between the transverse cutting band saw blade 74 and the fixed guide shifting fork 723 or the movable guide shifting fork 722, so that the transverse cutting band saw blade 74 can run more smoothly, and the service life of the transverse cutting band saw blade can be prolonged.

Material clamping mechanism 4 is including all fixed the setting just being located respectively on the guide rail base 1 the fixed side splint 41 and the mount 44 of 2 both sides of workstation, be equipped with the activity side splint 42 that can remove on the mount 44, activity side splint 42 is in with the setting centre gripping actuating mechanism 43 drive on the mount 44 is connected, utilizes fixed side splint 41 with activity side splint 42 advances line location centre gripping to the material, avoids vibrations among the cutting process to influence cutting accuracy, wherein, centre gripping actuating mechanism 43 is for driving actuating cylinder or hydro-cylinder or linear electric motor or sharp slip table etc. the transmitting terminal and the receiving terminal of range finding scanner 8 set up respectively on the side of fixed side splint 41 with on the side of mount 44.

As shown in fig. 6 and 7, the workbench 2 is drivingly connected to a workbench driving mechanism 9 disposed on the guide rail base 1, the workbench driving mechanism 9 includes a gear motor 91 fixedly disposed on the guide rail base 1, a driving gear 92 fixedly connected to an output shaft of the gear motor 91, and a rack 93 fixedly disposed on a bottom surface of the workbench 2 and engaged with the driving gear 92, the gear motor 91 drives the driving gear 92 to rotate, and the driving gear 92 drives the rack 93 to move to drive the workbench 2 to move linearly in a reciprocating manner.

A traveling wheel group 21 and a guide wheel group 22 are arranged on the bottom surface of the workbench 2, the traveling wheel group 21 comprises a plurality of traveling wheels which are arranged in a straight line, and the traveling wheels travel along the horizontal top surface of the first guide rail 11 of the guide rail base 1; the leading wheel group 22 includes the leading wheel of a plurality of word row cloth, annular direction taper groove has on the outer peripheral face of leading wheel, the direction taper groove with the top cooperation of the second guide rail 12 of guide rail base 1 makes the leading wheel is followed the walking of second guide rail 12, annular direction taper groove is being followed automatic guiding orientation can be carried out in the time of the motion of second guide rail 12, avoid workstation 2 left and right sides skew causes turns on one's side, and makes workstation 2's orbit precision is high, the walking wheel with the leading wheel cooperation is used, satisfies the automatic function of adjusting well and has great bearing capacity.

Preferably, the cross section of the first rail 11 and the cross section of the second rail 12 are both in the shape of an i.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a disc belt combination slitting saw device, includes guide rail base (1), can follow straight reciprocating motion's setting and be in workstation (2) on guide rail base (1) and setting are in portal frame (5) on guide rail base (1), its characterized in that, still including setting up just can be to being located on guide rail base (1) material clamping mechanism (4) that the material on workstation (2) carries out the centre gripping and all sets up disc rip cutting mechanism (6) and the belt crosscut mechanism (7) that can go up and down on portal frame (5), wherein, saw bit (67) of disc rip cutting mechanism (6) are perpendicular with horizontal ground, certain angle contained angle has between crosscut saw wheel (73) and the horizontal ground of belt crosscut mechanism (7).

2. A disc belt type combination cutting saw device according to claim 1, further comprising a range scanner (8) for measuring length, said range scanner (8) being located at a side of the feed end of said belt type traversing mechanism (7).

3. The disc belt type combined cutting saw device as claimed in claim 1, wherein the disc slitting mechanism (6) further comprises a slitting beam (61) fixedly connected with the portal frame (5), a traverse slide block (69) transversely slidably arranged on the slitting beam (61), a lifting slide block (63) longitudinally slidably arranged on the traverse slide block (69), and a slitting main motor (65) and a saw head frame (66) both fixedly arranged on the lifting slide block (63), the saw blade (67) is arranged on the saw head frame (66), the slitting main motor (65) is connected with the saw blade (67) through a rotation transmission mechanism (68), the traverse slide block (69) is in driving connection with the traverse transmission mechanism (62), and the lifting slide block (63) is in driving connection with a first lifting transmission mechanism (64).

4. A disc belt type combination cutting saw device according to claim 1, characterized in that the angle between the crosscut saw wheel (73) and the horizontal ground is in the range of 65 ° to 75 °.

5. The disc belt type combined cutting saw device according to claim 1, wherein the belt type transverse cutting mechanism (7) further comprises a lifting frame (72) arranged on the portal frame (5), the lifting frame (72) is in driving connection with a second lifting transmission mechanism (71), two ends of the lifting frame (72) are respectively provided with a side mounting frame (721), two transverse cutting saw wheels (73) of the belt type transverse cutting mechanism (7) are respectively pivoted on the corresponding side mounting frames (721), the two transverse cutting saw wheels (73) are respectively positioned on two sides of the workbench (2), a transverse cutting band saw blade (74) is sleeved on the two transverse cutting saw wheels (73), and one transverse cutting saw wheel (73) is connected with the cutting transmission mechanism (75).

6. A disc belt type combined cutting saw device according to claim 5, characterized in that the cutting transmission mechanism (75) comprises a main transverse cutting motor and a worm gear reducer, the main transverse cutting motor is in driving connection with an input shaft of the worm gear reducer through a belt transmission mechanism, and an output shaft of the worm gear reducer is connected with the corresponding saw transverse cutting wheel (73).

7. The disc band type combined cutting saw device according to claim 5, characterized in that the lifting frame (72) is further provided with a fixed guide shifting fork (723) and a movable guide shifting fork (722) capable of moving along the transverse direction, and the lower edge of the crosscut band saw blade (74) is positioned in the fork opening of the fixed guide shifting fork (723) and the fork opening of the movable guide shifting fork (722).

8. The disc band type combination cutting saw device according to claim 7, characterized in that two guide rollers (724) are provided at both ends of the fork, and the cross cutting band saw blade (74) is defined between the two guide rollers (724) on the same end.

9. The disc belt type combined cutting saw device according to claim 1, wherein the material clamping mechanism (4) comprises a fixed side clamping plate (41) and a fixed frame (44) which are fixedly arranged on the guide rail base (1) and respectively positioned at two sides of the workbench (2), a movable side clamping plate (42) capable of moving is arranged on the fixed frame (44), and the movable side clamping plate (42) is in driving connection with a clamping driving mechanism (43) arranged on the fixed frame (44).

10. A disc belt type combined cutting saw device according to claim 1, further comprising a guide mechanism (3), wherein the guide mechanism (3) comprises two side guide assemblies which are arranged on the guide rail base (1) and are respectively positioned at two sides of the workbench (2), the side guide assemblies comprise a plurality of spaced vertical frames, and guide rollers are arranged on the vertical frames.

11. A disc belt type combined cutting saw device according to claim 1, wherein the worktable (2) is drivingly connected with a worktable driving mechanism (9) arranged on the guide rail base (1), and the worktable driving mechanism (9) comprises a speed reducing motor (91) fixedly arranged on the guide rail base (1), a driving gear (92) fixedly connected with an output shaft of the speed reducing motor (91), and a rack (93) fixedly arranged on the bottom surface of the worktable (2) and meshed with the driving gear (92).

12. A disc belt type combined cutting saw device according to claim 11, characterized in that a walking wheel set (21) and a guide wheel set (22) are arranged on the bottom surface of the working table (2), the walking wheel set (21) comprises a plurality of walking wheels which are arranged in a line, and the walking wheels walk along the horizontal top surface of the first guide rail (11) of the guide rail base (1); the guide wheel set (22) comprises a plurality of guide wheels which are arranged in a straight line, an annular guide conical groove is formed in the outer peripheral surface of each guide wheel, and the guide conical groove is matched with the top of a second guide rail (12) of the guide rail base (1) to enable the guide wheels to walk along the second guide rail (12).