阅读说明：本技术 一种三辊支撑的焊丝送机放线机构 (Three-roller supported paying-off mechanism of welding wire feeder ) 是由 曹福凯 裴未迟 高晶 赵建辉 张云鹏 刘建新 于 2020-07-06 设计创作，主要内容包括：本发明提供一种三辊支撑的焊丝送机放线机构。所述三辊支撑的焊丝送机放线机构包括：下防护盒机架；上防护盒机架,所述上防护盒机架铰接在上防护盒机架上,所述上防护盒机架与下防护盒机架相适配；撑放架,所述撑放架安装在下防护盒机架的底部内壁上；两个下平行双托辊,两个所述下平行双托辊均转动安装在撑放架上；空心套装杆,所述空心套装杆安装在下防护盒机架的两侧内壁之间；焊丝盘,所述焊丝盘套装在空心套装杆上。本发明提供的三辊支撑的焊丝送机放线机构具有使用方便,提高现有焊接送丝机的稳定性,降低焊丝耗材消耗,保证空心套装杆和常用焊焊丝盘之间的连接稳定性,便于对焊丝进行截断的优点。(The invention provides a three-roller supported paying-off mechanism of a welding wire feeder. The welding wire feeder paying out machine mechanism that three-roller supported includes: a lower guard box frame; the upper protection box rack is hinged to the upper protection box rack, and the upper protection box rack is matched with the lower protection box rack; the supporting and placing frame is arranged on the inner wall of the bottom of the lower protection box rack; the two lower parallel double carrier rollers are rotatably arranged on the supporting and placing frame; the hollow sleeving rod is arranged between the inner walls of the two sides of the lower protection box rack; and the wire reel is sleeved on the hollow sleeving rod. The three-roller supported pay-off mechanism of the welding wire feeder provided by the invention has the advantages of convenience in use, improvement on the stability of the conventional welding wire feeder, reduction in consumption of welding wire consumables, guarantee of the connection stability between the hollow sleeved rod and a common welding wire reel, and convenience in cutting off the welding wire.)

1. The utility model provides a welding wire feeder paying out machine mechanism that three-roller supported which characterized in that includes:

a lower guard box frame;

the upper protection box rack is hinged to the upper protection box rack, and the upper protection box rack is matched with the lower protection box rack;

the supporting and placing frame is arranged on the inner wall of the bottom of the lower protection box rack;

the two lower parallel double carrier rollers are rotatably arranged on the supporting and placing frame;

the hollow sleeving rod is arranged between the inner walls of the two sides of the lower protection box rack;

the wire reel is sleeved on the hollow sleeving rod, and the bottom of the wire reel is contacted with the two lower parallel double supporting rollers;

the arc-shaped rod is arranged on the upper protection box rack;

and the upper pressure roller is rotatably arranged at the bottom end of the arc-shaped rod and is in contact with the wire reel.

2. The pay-off mechanism of the three-roller supported welding wire feeder according to claim 1, wherein two through holes are formed in both sides of the hollow sleeved rod, two wall connecting blocks are fixedly installed between the inner walls of the top and the bottom of the hollow sleeved rod, and two switching cylinders are rotatably installed between the two wall connecting blocks.

3. The pay-off mechanism of the three-roller supported welding wire feeder according to claim 2, wherein two shifting rods are rotatably mounted in the adapter cylinder, and extend to the outside of the hollow sleeved rod through the corresponding through holes to contact with a common welding wire reel.

4. The pay-off mechanism of the three-roller supported welding wire feeder according to claim 2, characterized in that a motor is fixedly mounted on the corresponding wall joint block, ring gears are fixedly mounted on an output shaft of the motor and the adapting cylinder, and the two ring gears are meshed with each other.

5. The three-roller supported pay-off mechanism of a welding wire feeder according to claim 2, wherein two of said transfer cylinders are fixedly sleeved with idler pulleys, and the same belt is sleeved between the two idler pulleys.

6. The pay-off mechanism of the three-roller supported welding wire feeder according to claim 2, wherein the four adjusting and moving rods are provided with rectangular holes, thin bar rods are slidably mounted in the holes, and the top ends and the bottom ends of the thin bar rods are fixedly connected with the inner wall of the hollow sleeved rod.

7. The pay-off mechanism of the three-roller supported welding wire feeder according to claim 2, wherein two L-shaped rods are fixedly arranged on the inner wall of one side of the lower protective box rack, and the ends, close to each other, of the two L-shaped rods are rotatably provided with rollers.

8. The three-roller supported pay-off mechanism of the welding wire feeder according to claim 2, wherein a wire outlet hole is formed in one side of the lower protection box frame, a compacting plate is slidably mounted in the wire outlet hole, rectangular blocks are mounted on the inner wall and the outer wall of the lower protection box frame, follower rods are slidably mounted on the two rectangular blocks, the bottom ends of the two follower rods are fixedly connected with the compacting plate, a hydraulic cylinder is fixedly mounted on the outer wall of one side of the lower protection box frame, and an output rod of the hydraulic cylinder is fixedly connected with the top of the compacting plate.

9. The three-roller supported paying-off mechanism of the welding wire feeder according to claim 2, wherein two sections of internal threads with opposite rotation directions are arranged in the switching cylinder, two corresponding adjusting and moving rods are provided with external threads, the two corresponding adjusting and moving rods are in threaded connection with the switching cylinder, one side of each corresponding wall connecting block is fixedly provided with a U-shaped mounting block, and the U-shaped mounting blocks are fixedly connected with the motor.

10. The three-roller supported paying-off mechanism of the welding wire feeder according to claim 2, wherein a plurality of rolling balls are embedded on the inner wall of the bottom of the wire outlet hole, a rubber cushion block is fixedly mounted at the bottom of the compacting plate, recessed grooves are formed in the two ends, away from each other, of the rectangular blocks, circular sliding rods are fixedly mounted between the tops of the recessed grooves and the inner wall of the bottom of the recessed grooves, and the circular sliding rods are respectively in sliding connection with the corresponding follower rods.

Technical Field

The invention relates to the technical field of welding, in particular to a three-roller supported paying-off mechanism of a welding wire feeder.

Background

The welding wire feeder is automatically added with welding wires by an automatic wire feeder, and is matched with a numerical control workbench of an automatic laser welding machine, high-precision welding is carried out in the welding process through the laser frequency, the pulse width, the workbench speed and the moving direction, the high energy of laser pulse and the high density can enable the welding to be smooth, the small heat affected zone of the width of a welding seam is small, the precision welding which cannot be realized by the traditional process can be completed, the welding efficiency is high, the effect is good, the operation is simple and convenient, the welding machine is suitable for welding of plane straight lines and circular arcs of various materials, the photoelectric isolation technology and the power isolation technology which are adopted by the automatic wire feeder for laser welding, the high-frequency ignition anti-interference of the welding machine is strong, the welding wire feeder is stable in wire feeding speed, the dynamic response is fast, the.

However, in the prior art, the welding wire does not have related protective equipment when the welding wire is paid off, the problem of messy wires and plate explosion easily occurs to the welding wire, the normal use of the feeding machine is influenced, the welding wire is paid off and used, the common welding wire plate wound with the welding wire needs to be sleeved on the hollow sleeved rod again, but a gap exists between the common welding wire plate and the hollow sleeved rod when the common welding wire plate is sleeved on the hollow sleeved rod, so that the common welding wire plate and the hollow sleeved rod cannot be fixedly connected, the common welding wire plate cannot be driven to synchronously rotate sometimes when the hollow sleeved rod rotates to pay off, and the normal paying off is easily influenced.

Therefore, it is necessary to provide a new three-roller supported wire feeding machine paying-off mechanism to solve the above technical problems.

Disclosure of Invention

The invention solves the technical problem of providing the paying-off mechanism of the welding wire feeder, which is convenient to use, improves the stability of the existing welding wire feeder, reduces the consumption of consumed welding wire, ensures the connection stability between a hollow sleeved rod and a common welding wire reel, and is convenient for cutting off the welding wire.

In order to solve the technical problem, the paying-off mechanism of the three-roller supported welding wire feeder provided by the invention comprises: a lower guard box frame 1; the upper protection box frame 2 is hinged to the upper protection box frame 1, and the upper protection box frame 2 is matched with the lower protection box frame 1; the supporting and placing frame 3 is arranged on the inner wall of the bottom of the lower protection box rack 1; the two lower parallel double carrier rollers 4 are rotatably arranged on the supporting and placing frame 3; the hollow sleeving rod 5 is installed between the inner walls of the two sides of the lower protection box rack 1; the wire reel 6 is sleeved on the hollow sleeving rod 5, and the bottom of the wire reel 6 is in contact with the two lower parallel double carrier rollers 4; the arc-shaped rod 7 is installed on the upper protection box rack 2; and the upper pressure roller 8 is rotatably arranged at the bottom end of the arc-shaped rod 7, and the upper pressure roller 8 is contacted with the wire disc 6.

Compared with the related art, the three-roller supported paying-off mechanism of the welding wire feeder provided by the invention has the following beneficial effects:

the three-roller supported pay-off mechanism of the welding wire feeder can ensure that the welding wire is perfectly protected in the using process, the problems of wire disorder, plate explosion and the like of the welding wire are solved, the resistance of the conventional wire feeding damping frame is effectively reduced, the wire feeding stability and the wire feeding distance of the wire feeder are improved, the requirement of short-distance wire drawing can be met, the flexibility in automatic welding is improved, and the welding quality is improved; the common welding wire disc for welding without the support is adopted, so that the use amount of the plastic of the common welding wire disc for welding can be effectively reduced, and the drip contribution is made for creating an energy-saving and environment-friendly low-carbon society.

In order to solve the technical problem, the paying-off mechanism of the three-roller supported welding wire feeder provided by the invention comprises: the connecting structure comprises two connecting holes, wherein the two connecting holes are respectively formed in two sides of the hollow sleeved rod, two wall connecting blocks are fixedly installed between the top and the bottom inner wall of the hollow sleeved rod, and two switching cylinders are rotatably installed between the two wall connecting blocks.

Preferably, the switching cylinder is rotatably provided with two adjusting and moving rods, and the two adjusting and moving rods respectively extend to the outside of the hollow sleeved rod through the corresponding through holes to be connected with a common welding wire coil.

Preferably, a motor is fixedly mounted on the corresponding wall connecting block, ring gears are fixedly mounted on an output shaft of the motor and the switching cylinder, and the two ring gears are meshed with each other.

Preferably, two of the transfer cylinders are fixedly sleeved with idler wheels, and the same belt is sleeved between the two idler wheels.

Preferably, four rectangular holes are formed in the adjusting and moving rods, thin bar rods are slidably mounted in the holes, and the top ends and the bottom ends of the thin bar rods are fixedly connected with the inner wall of the hollow sleeved rod.

Preferably, two L-shaped rods are fixedly mounted on the inner wall of one side of the lower protection box rack, and the two ends, close to each other, of the L-shaped rods are rotatably mounted with rollers.

Preferably, a wire outlet hole is formed in one side of the lower protection box frame, a compacting plate is slidably mounted in the wire outlet hole, rectangular blocks are mounted on the inner wall and the outer wall of the lower protection box frame, two follower rods are slidably mounted on the two rectangular blocks, the bottom ends of the two follower rods are fixedly connected with the compacting plate, a hydraulic cylinder is fixedly mounted on the outer wall of one side of the lower protection box frame, and an output rod of the hydraulic cylinder is fixedly connected with the top of the compacting plate.

Preferably, be equipped with two sections internal threads that revolve to opposite in the switching drum, two that correspond all be equipped with the external screw thread on transferring the pole, two correspond transfer the pole all with switching drum threaded connection, correspond one side of wall joint piece all fixed mounting has U type ampere block, U type ampere block all with motor fixed connection.

Preferably, inlay on the bottom inner wall of wire hole and have many rolling pearls, the bottom fixed mounting of compacting plate has the rubber cushion, two the depressed groove has all been seted up to the one end that rectangular piece was kept away from each other, two equal fixed mounting has the circle slide bar between the top of depressed groove and the bottom inner wall, two the circle slide bar respectively with correspond follower bar sliding connection.

Compared with the related art, the three-roller supported paying-off mechanism of the welding wire feeder provided by the invention has the following beneficial effects:

the invention provides a three-roller supported pay-off mechanism of a welding wire feeder, which is characterized in that the positions of four adjusting and moving rods are moved under the driving of the power of a motor, a common welding wire reel is supported and fixed through the matching of the four adjusting and moving rods, so that the common welding wire reel and a hollow sleeved rod are kept in a fixed connection relation, the hollow sleeved rod drives the common welding wire reel to synchronously rotate for paying off conveniently, the position of a pressing and fixing plate is adjusted through a hydraulic cylinder, the welding wire is firmly pressed through the pressing and fixing plate, and the end of the welding wire cannot slide into equipment to cause inconvenience in use when the welding wire is cut off conveniently.

Drawings

FIG. 1 is a schematic front view of a pay-off mechanism of a three-roll supported welding wire feeder according to a first embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the present invention;

FIG. 3 is a schematic top cross-sectional view of the present invention;

FIG. 4 is a schematic front sectional view of a second embodiment of the present invention;

FIG. 5 is an enlarged view of part A of FIG. 4;

FIG. 6 is an enlarged view of the portion B in FIG. 4;

fig. 7 is an enlarged schematic structural view of a portion C in fig. 6.

Reference numbers in the figures: 1. the device comprises a lower protective box frame, 2, an upper protective box frame, 3, a supporting frame, 4, a lower parallel double carrier roller, 5, a hollow sleeved rod, 6, a wire disc, 7, an arc rod, 8, an upper pressure roller, 9, a through hole, 10, a wall connecting block, 11, a switching cylinder, 12, a shifting rod, 13, a motor, 14, a ring gear, 15, an idler wheel, 16, a belt, 17, a rectangular hole, 18, a strip rod, 19, an L-shaped rod, 20, a rolling shaft, 21, an outlet hole, 22, a pressing and fixing plate, 23, a rectangular block, 24, a follower rod, 25 and a hydraulic cylinder.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Therefore, the invention also provides a three-roller supported paying-off mechanism of the welding wire feeder, which comprises the following steps:

first embodiment

Referring to fig. 1-3 in combination, in a first embodiment of the present invention, a three-roll supported wire payoff mechanism of a wire feeder comprises: a lower guard box frame 1; the upper protection box frame 2 is hinged to the upper protection box frame 1, and the upper protection box frame 2 is matched with the lower protection box frame 1; the supporting and placing frame 3 is arranged on the inner wall of the bottom of the lower protection box rack 1; the two lower parallel double carrier rollers 4 are rotatably arranged on the supporting and placing frame 3; the hollow sleeving rod 5 is installed between the inner walls of the two sides of the lower protection box rack 1; the wire reel 6 is sleeved on the hollow sleeving rod 5, and the bottom of the wire reel 6 is in contact with the two lower parallel double carrier rollers 4; the arc-shaped rod 7 is installed on the upper protection box rack 2; and the upper pressure roller 8 is rotatably arranged at the bottom end of the arc-shaped rod 7, and the upper pressure roller 8 is contacted with the wire disc 6.

The working principle of the paying-off mechanism of the three-roller supported welding wire feeder provided by the invention is as follows:

when a welding wire needs to be paid off, the upper protective box rack 2 is rotated, the wire disc 6 is installed in the lower protective box rack 1, the wire disc 6 is installed and then the upper protective box rack 2 is rotated reversely, the upper protective box rack 2 shields the lower protective box rack 1 again, a closed space is formed by splicing the upper protective box rack 1 and the lower protective box rack 2 and moves along with the upper protective box rack 2, the upper pressing roller 8 is gradually contacted with the top of the wire disc 6, when the wire disc 6 rotates, the wire disc 6 drives the two lower parallel double supporting rollers 4 to rotate on the supporting and placing rack 3, and meanwhile, the upper pressing roller 8 is driven to rotate on the arc-shaped rod 7 to press and fix the welding wire through the matching use of the two lower parallel double supporting rollers 4 and the upper pressing roller 8, so that the welding wire is prevented from being exploded from the common wire disc 6 and disordered;

the upper protection box frame 2 and the lower protection box frame 1 are mutually connected through a hinge shaft, so that the upper protection box frame 2 can be freely opened and closed; the upper pressure roller 8 is connected in the upper protection box frame 2 through a spring sheet; the supporting and placing frames 3 are all installed in the lower protective box rack 1, when the welding wire supporting and placing device is used, a welding wire disc 6 filled with welding wires is placed on the supporting and placing frames 3, the upper protective box rack 2 is closed, the compression roller 8 is pressed on the upper edge of the welding wire disc 6, the welding wires are protected in the middle by the aid of the edges of the welding wire disc 6, the supporting and placing frames 3 and the compression roller 8, each carrier roller can flexibly rotate, the welding wire disc 6 flexibly rotates to pay off and feed wires, bearings are installed in the three carrier rollers to guarantee that each carrier roller flexibly rotates, one fixed carrier roller is provided with a V-shaped structure and used for stabilizing the axial center of the welding wire disc 6 commonly used for welding, the support of the compression roller 8 and the supports of the double fixed carrier rollers can be opened and closed, the;

the spacing of the support frame 3 is adjustable to adapt to wire reels 6 with different specifications such as phi 270, phi 300 and the like applied in the current market, meanwhile, the center-frame-free wire reels 6 can be used, the center-frame-free wire reels 6 are widely used, the consumption of plastics can be effectively reduced, 7500 tons of plastics can be saved every year according to estimation, and contribution is made to the society with low consumption and environmental protection.

Compared with the related art, the three-roller supported paying-off mechanism of the welding wire feeder provided by the invention has the following beneficial effects:

the three-roller supported pay-off mechanism of the welding wire feeder can ensure that the welding wire is perfectly protected in the using process, the problems of wire disorder, plate explosion and the like of the welding wire are solved, the resistance of the conventional wire feeding damping frame is effectively reduced, the wire feeding stability and the wire feeding distance of the wire feeder are improved, the requirement of short-distance wire drawing can be met, the flexibility in automatic welding is improved, and the welding quality is improved; the common welding wire disc for welding without the support is adopted, so that the use amount of the plastic of the common welding wire disc for welding can be effectively reduced, and the drip contribution is made for creating an energy-saving and environment-friendly low-carbon society.

Second embodiment:

based on the three-roller supported wire feeding machine pay-off mechanism provided by the first embodiment of the application, the second embodiment of the application provides another three-roller supported wire feeding machine pay-off mechanism, the second embodiment is only a preferable mode of the first embodiment, and the implementation of the second embodiment does not affect the independent implementation of the first embodiment.

The second embodiment of the present invention will be further explained with reference to the drawings and the embodiments

Referring to fig. 4 and 5 in combination, in a second embodiment of the present invention, a three-roll supported wire payoff mechanism of a wire feeder comprises: the connecting structure comprises two connecting holes 9, wherein the two connecting holes 9 are respectively arranged at two sides of the hollow sleeved rod 3, two wall connecting blocks 10 are fixedly arranged between the top and the bottom inner wall of the hollow sleeved rod 3, and two switching cylinders 11 are rotatably arranged between the two wall connecting blocks 10.

Two adjusting and moving rods 12 are rotatably mounted in the adapting cylinder 11, and the two adjusting and moving rods 12 respectively extend to the outside of the hollow sleeved rod 3 through the corresponding through holes 9 to be contacted with the common welding wire disc 4.

A motor 13 is fixedly mounted on the corresponding wall connecting block 10, ring gears 14 are fixedly mounted on an output shaft of the motor 13 and the adapting cylinder 11, and the two ring gears 14 are meshed with each other.

Two transfer cylinders 11 are both fixedly sleeved with idler wheels 15, and the same belt 16 is sleeved between the two idler wheels 15.

Rectangular holes 17 are formed in the four adjusting and moving rods 12, thin rod rods 18 are arranged in the holes 17 in a sliding mode, and the top ends and the bottom ends of the thin rod rods 18 are fixedly connected with the inner wall of the hollow sleeved rod 3.

And two L-shaped rods are fixedly mounted on the inner wall of one side of the lower protection box frame 1, and the rollers 20 are mounted at the ends, close to each other, of the L-shaped rods in a rotating manner.

The protective box comprises a lower protective box frame 1 and is characterized in that a wire outlet hole 21 is formed in one side of the lower protective box frame 1, a pressing plate 22 is slidably mounted in the wire outlet hole 21, rectangular blocks 23 are mounted on the inner wall and the outer wall of the lower protective box frame 1, follower rods 24 are slidably mounted on the two rectangular blocks 23, the bottom ends of the two follower rods 24 are fixedly connected with the pressing plate 22, a hydraulic cylinder 25 is fixedly mounted on the outer wall of one side of the lower protective box frame 1, and an output rod of the hydraulic cylinder 25 is fixedly connected with the top of the pressing plate 22.

Two sections of internal threads with opposite rotating directions are arranged in the switching cylinder 11, external threads are arranged on the corresponding two adjusting and moving rods 12, the two corresponding adjusting and moving rods 12 are connected with the switching cylinder 11 in a threaded mode, corresponding U-shaped safety blocks are fixedly arranged on one side of the wall connecting block 10, and the U-shaped safety blocks are fixedly connected with the motor 13.

Inlay on the bottom inner wall of wire hole 21 and have many rolls pearl, the bottom fixed mounting of compacting plate 22 has the rubber cushion, two the depressed groove has all been seted up to the one end that rectangular piece 23 kept away from each other, two equal fixed mounting has the circle slide bar between the top of depressed groove and the bottom inner wall, two the circle slide bar respectively with correspond retinue pole 24 sliding connection.

The working principle of the paying-off mechanism of the three-roller supported welding wire feeder provided by the invention is as follows:

when the welding wire needs to be replaced after being used, the common welding wire disc 4 wound with enough welding wire is sleeved on the hollow sleeved rod 3, then the motor 13 is started, and the output shaft of the motor 13 drives the corresponding ring gear 14 to rotate;

under the mutual cooperation of the two ring gears 14, the corresponding adapter cylinder 11 is caused to rotate, the adapter cylinder 11 drives the corresponding idle gear 15 to rotate, and under the cooperation of the two idle gears 15 and a belt 16, the two adapter cylinders 11 are simultaneously caused to perform rotary motion between the two wall connecting blocks 10;

driven by the two transfer cylinders 11, the four adjusting and moving rods 12 move away from each other in the corresponding transfer cylinders 11 under the influence of the threads, so that the four adjusting and moving rods 12 extend out of the hollow sleeved rod 3 through the corresponding through holes 9 and gradually contact with the inner wall of the common welding wire disc 4;

when the four adjusting and moving rods 12 move, sliding contact is generated between the rectangular holes 17 and the corresponding thin rod rods 18 until one ends of the four adjusting and moving rods 12 are in contact with the common welding wire disc 4, and the motor 13 can be closed after the common welding wire disc 4 is tightly supported;

one end of a welding wire wound on the common welding wire reel 4 extends out of the wire outlet hole 21 through the space between the two rolling shafts 20, and when the welding wire needs to be cut off, one end of the welding wire needs to be pressed and fixed in order to avoid the situation that the welding wire is out of control and slides into the device to be inconvenient to take out;

the hydraulic cylinder 25 is started, the output rod of the hydraulic cylinder 25 is gradually output outwards, the hydraulic cylinder 25 pushes the fixing plate 22 to move downwards in the wire outlet hole 21, the fixing plate 22 drives the two follower rods 24 to move synchronously when moving, the two follower rods 24 all slide on the circular slide rods in the corresponding rectangular blocks 23, the rubber cushion blocks at the bottom of the fixing plate 22 are in contact with the welding wires, after the welding wires are firmly pressed on the inner wall of the wire outlet hole 21 and kept stable, the output rod of the hydraulic cylinder 25 also moves to the limit length, the hydraulic cylinder 25 is closed, one end of the welding wires is fixed, and then the welding wires can be cut off.

Compared with the related art, the three-roller supported paying-off mechanism of the welding wire feeder provided by the invention has the following beneficial effects:

the invention provides a three-roller supported pay-off mechanism of a welding wire feeder, which moves the positions of four adjusting and moving rods 12 under the driving of the power of a motor 13, supports and fixes a common welding wire disc 4 through the matching of the four adjusting and moving rods 12, keeps a fixed connection relation between the common welding wire disc 4 and a hollow sleeved rod 3, facilitates the hollow sleeved rod 3 to drive the common welding wire disc 4 to synchronously rotate for paying off, adjusts the position of a fixing plate 22 through a hydraulic cylinder 25, firmly presses the welding wire through the fixing plate 22, and facilitates the end of the welding wire not to slide into the inside of equipment when the welding wire is cut off, thereby bringing inconvenience for use.

It should be noted that the device structure and the accompanying drawings of the present invention mainly describe the principle of the present invention, and in the technology of the design principle, the arrangement of the power mechanism and the control system of the device, etc. is not completely described, but the details of the power mechanism and the control system can be clearly known by those skilled in the art on the premise of understanding the principle of the present invention.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.