Automatic machining operation table for electromechanical equipment

Abstract

The invention belongs to the technical field of machining operation tables, and discloses an electromechanical equipment automatic machining operation table which comprises a base, a fixing plate is fixedly mounted on the base, a plurality of through grooves are formed in the fixing plate, a plurality of sliding seats are slidably connected into the through grooves, locking assemblies are arranged in the sliding seats, and the locking assemblies are connected with the sliding seats through bolts. Abutting plates are fixed to the multiple sliding seats, the locking assemblies comprise rotating columns rotationally connected into the sliding seats, eccentric discs and fixing rods, the eccentric discs and the fixing rods are fixedly connected to the upper ends and the lower ends of the rotating columns correspondingly, limiting grooves in sliding fit with the fixing rods are formed in the bottoms of the sliding seats, and the outer sides of the eccentric discs are fixedly sleeved with rubber sleeves; a spring is fixedly connected between the eccentric position of the top of the eccentric disc and the sliding base. The sliding seats can be fixed to any position in the through groove through the locking assemblies, and therefore electromechanical equipment of different sizes and different shapes can be fixed through the abutting plates on the multiple sliding seats.

Description

Technical Field

[0001] The invention belongs to the technical field of processing operation tables, and in particular relates to an automatic processing operation table for electromechanical equipment. Background Art

[0002] At present, the structure used to fix and clamp the electromechanical equipment in the existing electromechanical equipment automated processing operation table is not movable, which makes it impossible to fix and clamp electromechanical equipment of different sizes and shapes in the existing technology, making the practicability of the device poor; in addition, the waste chips generated during the automated processing often need to be manually cleaned after the processing is completed, and the cleaning operation is relatively troublesome, resulting in low overall work efficiency. Summary of the invention

[0003] The purpose of the present invention is to provide an electromechanical equipment automated processing operation table to solve the problem that the existing electromechanical equipment automated processing operation table cannot clamp electromechanical equipment of different sizes and shapes and that it is troublesome to clean up waste chips after processing.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] 4. The repairing kit for automotive dents, according to claim 1, wherein the two trackballs are designed to be connected to the chassis and the trackballs are connected by a threaded cantilever cam, and the trackballs are connected by a threaded cantilever cam.

[0006] Preferably, a sliding rod is fixedly installed at the bottom of each fixed rod, two first sliding plates are symmetrically slidably arranged in the base, and the two first sliding plates are provided with inclined sliding grooves, and the multiple sliding rods are respectively slidably matched with the multiple sliding grooves in a one-to-one corresponding manner.

[0007] Preferably, a driving assembly for driving the first slide to move is provided in the base, and the driving assembly includes two rotating shafts connected to the base in sequence and rotating toward the middle of the base, and two groups of conveying wheels coaxially fixed on the two rotating shafts, and conveyor belts are sleeved on the outer sides of the two groups of conveying wheels, and the first slide is fixed between the two conveyor belts.

[0008] Preferably, gears are coaxially fixed to one end of the two rotating shafts located in the middle of the base in the two driving assemblies, and the two gears are meshingly connected.

[0009] Preferably, a second slide plate is fixedly installed between the two conveyor belts, and the thickness of the second slide plate is greater than the distance between the top of the conveyor belt and the bottom of the slide bar.

[0010] Preferably, a collecting box is slidably connected to the bottom of the base, a brush is fixed to one side of the second slide plate, and the end of the brush extends to the inner bottom surface of the base.

[0011] Preferably, a protective frame is fixedly mounted on the base, two slides are slidably connected to the base, the blowing assembly includes a blowing pipe arranged between the two slides and a plurality of blowing nozzles fixed on the blowing pipe, and the blowing pipe is located above the protective frame.

[0012] Preferably, an air pump is fixedly mounted on one side of the base, and a hose is connected between the air pump and one end of the air blowing pipe.

[0013] Preferably, two screw rods are rotatably connected to the base, the two screw rods are respectively screwed together and penetrate the two slides, one end of the two screw rods is coaxially fixed with a pulley, and a belt is connected for transmission between the two pulleys.

[0014] Preferably, the blowing pipe is rotatably connected to both slides, one end of the blowing pipe is fixedly connected to a rotating rod, an electric push rod is fixedly installed on one of the slides, and a connecting rod is rotatably connected between the telescopic end of the electric push rod and one end of the rotating rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] (1) The present invention is provided with a slide and a locking assembly. The locking assembly rotates through the fixed rod so that the rotating column drives the eccentric disk to rotate, so that the rubber sleeve on the outside of the eccentric disk is pressed and pressed against the inner wall of the through groove. At the same time, the spring connected to the eccentric position on the top of the eccentric disk can make the fixed rod always contact one side of the limit groove to achieve self-locking of the locking assembly and ensure the reliability of the locking assembly. In this way, the slide can be fixed at any position in the through groove, so that the fixing of electromechanical equipment of different sizes and shapes can be achieved through the pressing plates on the multiple slides, thereby increasing the practicality of the equipment.

[0017] (2) The present invention provides a first slide plate, a slide groove and a slide rod. When the first slide plate moves from both ends of the base toward the middle, the slide groove on the first slide plate contacts the slide rod. Under the action of the spring, the fixed rod does not rotate, so that the inclined slide groove first pushes the slide rod to move, thereby driving the slide seat to move through the fixed rod and the rotating column until the clamping plate on the slide seat clamps the electromechanical equipment. At this time, the first slide plate continues to slide, so that the slide groove pushes the slide rod to drive the fixed rod to rotate, thereby driving the eccentric disk to rotate through the rotating column to achieve locking of the locking assembly, and then the slide rod slides out from the other end of the slide groove, so that the first slide plate can continue to move, so that the slide seats in other through grooves can continue to move until the corresponding clamping plates clamp the electromechanical equipment, so that the first slide plate can slide once to fix electromechanical equipment of different shapes, and the efficiency is high.

[0018] (3) The present invention is provided with a second slide plate. After the processing is completed, the conveyor belt rotates in the opposite direction to make the first slide plate move to both ends, so that the slide groove pushes the slide rod to drive the fixed rod to rotate, so that the locking assembly is no longer locked, and then the conveyor belt continues to rotate to make the second slide plate move upward. Since the thickness of the second slide plate is greater than the distance between the top of the conveyor belt and the bottom of the slide rod, the second slide plate pushes the slide rod so that the fixed rod drives the slide seat to move along the through groove to both ends through the limiting groove, so as to realize the reset of the slide seat for the next use.

[0019] (4) The present invention is provided with a blowing assembly, a brush and a collection box. The waste chips generated by the processing can be blown into the through groove through the blowing assembly and fall onto the bottom surface of the base. When the conveyor belt drives the second slide to move, the brush at the bottom can sweep the fallen waste chips into the collection box, thereby completing the cleaning of the waste chips. The operation is simple and the efficiency is high.

[0020] (5) The present invention is provided with an electric push rod, a connecting rod and a rotating rod. The electric push rod is extended and retracted to make one end of the connecting rod rise and fall, so that the other end of the connecting rod drives the end of the rotating rod to move, so that the rotating rod rotates around the axis of the air blowing pipe, thereby driving the air blowing pipe to rotate in the slide, and then adjusting the angle of the air blowing nozzle, so as to make it easier to blow waste chips into the through groove from different angles, thereby improving the cleaning quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a first stereogram of the present invention;

[0022] Figure 2 is a second stereogram of the present invention;

[0023] Figure 3 is a cross-sectional view of the present invention;

[0024] Figure 4 It is a three-dimensional diagram of the slide assembly of the present invention;

[0025] Figure 5It is a stereogram of the assembly of the rotating column of the present invention;

[0026] Figure 6 A first cross-sectional view of the slide assembly of the present invention;

[0027] Figure 7 A second cross-sectional view of the slide assembly of the present invention;

[0028] Figure 8 A first stereogram of the drive assembly of the present invention is provided;

[0029] Fig. 9 A second stereogram of the drive assembly of the present invention is provided;

[0030] Fig.10 A third perspective view of the drive assembly assembly of the present invention;

[0031] In the figure: 1-base, 2-protection frame, 3-fixed plate, 4-through groove, 5-slide, 6-tightening plate, 7-blowing pipe, 8-blowing nozzle, 9-rotating rod, 10-connecting rod, 11-electric push rod, 12-slide, 13-hose, 14-air pump, 15-screw, 16-collecting box, 17-pulley, 18-belt, 19-gear, 20-rotating shaft, 21-first slide, 22-slide, 23-fixed rod, 24-rotating column, 25-eccentric disk, 26-second slide, 27-brush, 28-limiting groove, 29-rubber sleeve, 30-spring, 31-slide, 32-conveyor belt, 33-conveyor wheel. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 10 As shown, the present invention provides the following technical solutions:

[0034] A mechanical and electrical equipment automated processing operation table includes a base 1 and a blowing assembly arranged above the base 1, a fixed plate 3 is fixedly installed on the base 1, a plurality of through slots 4 are opened on the fixed plate 3, a plurality of slides 5 are slidably connected in the plurality of through slots 4, and at most two slides 5 are arranged in each through slot 4, a locking assembly is provided in each of the plurality of slides 5, a clamping plate 6 is fixed on each of the plurality of slides 5, and the clamping surfaces of the clamping plates 6 are all facing the middle of the base 1, the locking assembly includes a rotating column 24 rotatably connected in the slide 5, and an eccentric disk 25 and a fixed rod 23 respectively fixedly connected to the upper and lower ends of the rotating column 24, a limiting groove 28 slidably matched with the fixed rod 23 is provided at the bottom of the slide 5, a rubber sleeve 29 is provided on the outer fixed sleeve of the eccentric disk 25, and a spring 30 is fixedly connected between the eccentric position at the top of the eccentric disk 25 and the slide 5.

[0035] Based on the above disclosed structure, when performing automated processing of electromechanical equipment:

[0036] First, the electromechanical device needs to be fixed and clamped on the fixing plate 3 on the base 1. The specific operation is as follows: the electromechanical device is placed on the fixing plate 3, and the electromechanical device is located in the middle of the base 1, and then the slide 5 is slid in the through groove 4, so that the abutting plate 6 on the slide 5 abuts against the electromechanical device, and then the fixing rod 23 is rotated, so that the fixing rod 23 drives the eccentric disk 25 to rotate through the rotating column 24, so that the eccentric disk 25 drives the rubber sleeve 29 to rotate, so that part of the rubber sleeve 29 rotates to the outside of the slide 5 and contacts the inner wall of the through groove 4, so that the eccentric disk 25 and the inner wall of the through groove 4 contact the rubber sleeve 29. The extrusion of the sleeve 29 makes the eccentric disc 25 relatively fixed to the through slot 4, and then makes the slide 5 relatively fixed to the fixed plate 3. The spring 30 between the top of the eccentric disc 25 and the slide 5 can apply a force to one side of the eccentric disc 25, so that the fixing rod 23 is always pressed against one side of the limit slot 28 by the rotating column 24, thereby ensuring the reliability of the fixation of the slide 5. In this way, multiple pressing plates 6 can be used to fix and clamp the electromechanical equipment, and through the sliding of the slide 5 in the through slot 4, multiple pressing plates 6 can be used to clamp electromechanical equipment of different sizes and shapes, thereby increasing the practicality of the equipment.

[0037] Then, the fixed and clamped electromechanical equipment can be subjected to automated machining operations, and the waste chips generated during the machining will fall onto the base 1 and the fixed plate 3 . After the machining is completed, the waste chips on the fixed plate 3 can be cleaned and collected by a blowing component.

[0038] As mentioned above, regarding the driving rotation of the fixing rod 23, it is preferred to have the following structure:

[0039] A slide bar 22 is fixedly installed at the bottom of each fixed rod 23, two first slide plates 21 are symmetrically slidably arranged in the base 1, and an inclined slide groove 31 is provided on each of the two first slide plates 21, and the multiple slide bars 22 are respectively slidably matched with the multiple slide grooves 31 in a one-to-one correspondence;

[0040] A driving assembly for driving the first slide plate 21 is provided in the base 1, and the driving assembly includes two rotating shafts 20 connected to the base 1 in sequence and rotating toward the middle of the base 1, and two sets of conveying wheels 33 coaxially fixed on the two rotating shafts 20, and the outer sides of the two sets of conveying wheels 33 are sleeved with conveying belts 32, and the first slide plate 21 is fixed between the two conveying belts 32;

[0041] One end of the two rotating shafts 20 located in the middle of the base 1 in the two driving assemblies is coaxially fixed with a gear 19, and the two gears 19 are meshed and connected.

[0042] As can be seen from the above, one of the rotating shafts 20 is driven to rotate by the motor, so that the corresponding conveying wheel 33 is driven to rotate, and then the other rotating shaft 20 in the same driving component is rotated through the transmission of the conveying belt 32, and at the same time, the two rotating shafts 20 in different driving components are driven by two meshing gears 19, so that the two sets of conveying belts 32 in the two driving components are relatively rotated, so that the two first slides 21 move from the two ends of the base 1 to the middle at the same time, and the slide groove 31 on the first slide 21 first conflicts with the slide rod 22. At this time, the spring 30 pulls the eccentric disk 25 so that the fixed rod 23 at the bottom of the rotating column 24 conflicts with one side of the limiting groove 28. At this time, the rubber sleeve 29 on the outside of the eccentric disk 25 does not conflict with the inner wall of the through groove 4. The slide 5 is in a movable state. Under the pulling force of the spring 30, the fixing rod 23 does not rotate, so that the slide groove 31 pushes the slide rod 22 and the fixing rod 23 to move, thereby driving the slide 5 to move through the rotating column 24 until the clamping plate 6 is pressed against the electromechanical equipment. At this time, the slide 5 cannot move. When the first slide plate 21 continues to move, the slide groove 31 pushes the slide rod 22 to move, and at the same time, the fixing rod 23 is driven to rotate around the axis of the rotating column 24, so that the eccentric disk 25 and the rubber sleeve 29 are driven to rotate around the axis of the rotating column 24, so that the eccentric disk 25 and the inner wall of the through groove 4 are pressed against the rubber sleeve 29. At the same time, when the eccentric disk 25 rotates, the spring 30 first extends and then contracts, so that the fixing rod 23 is pressed against the other side of the limiting groove 28 by the elastic force of the spring 30, so that the locking assembly is locked;

[0043] Then after locking and fixing the slide 5, the slide bar 22 slides out of the slide groove 31. At this time, the first slide plate 21 can continue to move with the conveyor belt 33, so that the slide seats 5 on the same side of the base 1 are fixed one by one through the above steps, so that the slide seats 5 on the same side can be fixed at different lateral positions, so as to facilitate the fixed clamping of electromechanical equipment of different shapes. The fixed clamping of the electromechanical equipment only requires the conveyor belt 32 to drive the first slide plate 21 to move toward the middle, so that the fixation of different positions of the slide can be achieved, so that the fixed clamping efficiency is higher, thereby improving the overall processing efficiency.

[0044] Then, after the electromechanical equipment is processed, the driving shaft 20 rotates in the opposite direction, so that the conveyor belt 32 drives the first slide plate 21 to move in the opposite direction, so that the slide groove 31 on the first slide plate 21 conflicts with the slide rod 22. At this time, since the eccentric disk 25 and the rubber sleeve 29 are fixed in conflict with the inner wall of the through groove 4, the slide groove 31 pushes the slide rod 22 to move, so that the fixed rod 23 rotates, thereby driving the eccentric disk 25 and the rubber sleeve 29 to rotate through the rotating column 24, so that the eccentric disk 25 and the rubber sleeve 29 are no longer in conflict with the inner wall of the through groove 4, and the spring 30 resets the fixed rod 23 in the limiting groove 28, so that the slide seat 5 can slide in the through groove 4, and as the conveyor belt 32 continues to rotate, the slide rod 22 slides out of the slide groove 31 again, thereby As the first slide 21 continues to move, the multiple slides 5 are released and fixed in turn. Preferably, a second slide 26 is fixedly installed between the two conveyor belts 32, and the thickness of the second slide 26 is greater than the distance between the top of the conveyor belt 32 and the bottom of the slide bar 22. Then the conveyor belt 32 continues to rotate so that the second slide 26 moves from the middle of the base 1 and moves with the conveyor belt 32 to the top of the conveyor belt 32. Since the thickness of the second slide 26 is greater than the distance between the top of the conveyor belt 32 and the bottom of the slide bar 22, the second slide 26 pushes the slide bar 22, so that the fixing rod 23 pushes the slide 5 to move through the limit groove 28, so that the slide 5 moves to the two ends of the through groove 4, thereby realizing the reset of the slide 5 for the next use.

[0045] In addition, regarding the cleaning of waste chips generated by automated processing, it is preferred to have the following structure:

[0046] A protective frame 2 is fixedly mounted on the base 1, and two slides 12 are slidably connected to the base 1. The air blowing assembly includes an air blowing pipe 7 arranged between the two slides 12 and a plurality of air blowing nozzles 8 fixed on the air blowing pipe 7. The air blowing pipe 7 is located above the protective frame 2.

[0047] An air pump 14 is fixedly mounted on one side of the base 1, and a hose 13 is connected between the air pump 14 and one end of the air blowing pipe 7;

[0048] Two screw rods 15 are rotatably connected to the base 1, and the two screw rods 15 are respectively screwed and penetrate the two slides 12, and a pulley 17 is coaxially fixed to one end of the two screw rods 15, and a belt 18 is connected between the two pulleys 17 for transmission;

[0049] A collecting box 16 is slidably connected to the bottom of the base 1 , and a brush 27 is fixed to one side of the second slide plate 26 , with the end of the brush 27 extending to the inner bottom surface of the base 1 .

[0050] As can be seen from the above, the waste chips generated by the automated processing will fall into the protective frame 2, a part of which will pass through the through slot 4 and fall onto the inner bottom surface of the base 1, and the other part will accumulate on the fixed plate 3. The air pump 14 is started to allow the gas to enter the air blowing pipe 7 through the hose 13 and finally be ejected from the air blowing nozzle 8, so as to blow up the waste chips accumulated on the fixed plate 3, so that the waste chips pass through the through slot 4 and fall onto the inner bottom surface of the base 1, and at the same time drive one of the screw rods 15 to rotate, and through the transmission of the two pulleys 17 and the belt 18, the two screw rods 15 are rotated synchronously, so that the two slides 12 move synchronously, thereby driving the air blowing pipe 7 to move above the protective frame 2, so that the waste chips on the fixed plate 3 are blown and cleaned row by row;

[0051] After all the waste chips have passed through the through slot 4 and fallen into the inner bottom surface of the base 1, the second slide plate 26 is driven to move by the conveyor belt 32, so that the brush on one side of the second slide plate 26 sweeps the waste chips on the inner bottom surface of the base 1 and gradually sweeps them into the collection box 16, thereby completing the automatic cleaning of the waste chips, which is simple to operate and highly efficient. In addition, the brush 27 on the second slide plate 26 is made of soft material and will not prevent the second slide plate 26 from entering under the slide seat 5 and pushing the slide rod 22.

[0052] In addition, the air blowing pipe 7 is rotatably connected to the two slides 12, one end of the air blowing pipe 7 is fixedly connected to a rotating rod 9, one of the slides 12 is fixedly installed with an electric push rod 11, and a connecting rod 10 is rotatably connected between the telescopic end of the electric push rod 11 and one end of the rotating rod 9. Based on this, when blowing to clean waste chips, the angle of the blowing nozzle 8 can be adjusted so that the waste chips are blown in different directions, so that the waste chips can pass through the through slot 4 more easily, thereby improving the cleaning efficiency. The specific operation is: start the electric push rod 11 to push out the telescopic end, so that one end of the connecting rod 10 is raised, so that the other end of the connecting rod 10 drives the end of the rotating rod 9 to move upward, so that the rotating rod 9 drives the blowing pipe 7 to rotate in the slide 12, and then the blowing nozzle 8 rotates forward around the axis of the blowing pipe 7; conversely, the electric push rod 11 retracts the telescopic end, so that the blowing nozzle 8 rotates backward around the axis of the blowing pipe 7, so that the angle of the blowing nozzle 8 can be adjusted within a fan-shaped range, which is convenient for blowing the waste chips in different directions, so that they pass through the through slot 4 faster, thereby improving the cleaning efficiency.

[0053] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated processing platform for electromechanical equipment, characterized in that: The invention comprises a base (1) and a blowing assembly arranged above the base (1), wherein a fixing plate (3) is fixedly mounted on the base (1), a plurality of through slots (4) are provided on the fixing plate (3), a plurality of slide seats (5) are slidably connected in the plurality of through slots (4), and at most two slide seats (5) are provided in each of the through slots (4), a locking assembly is provided in each of the plurality of slide seats (5), a clamping plate (6) is fixed on each of the plurality of slide seats (5), and the clamping surface of the clamping plate (6) faces Towards the middle of the base (1), the locking assembly comprises a rotating column (24) rotatably connected to the slide seat (5), and an eccentric disk (25) and a fixed rod (23) respectively fixedly connected to the upper and lower ends of the rotating column (24); the bottom of the slide seat (5) is provided with a limit groove (28) slidably matched with the fixed rod (23); the outer fixed sleeve of the eccentric disk (25) is provided with a rubber sleeve (29); and a spring (30) is fixedly connected between the eccentric position of the top of the eccentric disk (25) and the slide seat (5).

2. The electromechanical equipment automated processing operation table according to claim 1, characterized in that: A sliding rod (22) is fixedly mounted at the bottom of each fixed rod (23); two first sliding plates (21) are symmetrically slidably arranged in the base (1); an inclined sliding groove (31) is provided on each of the two first sliding plates (21); and the plurality of sliding rods (22) are respectively slidably matched with the plurality of sliding grooves (31) in a one-to-one corresponding manner.

3. The electromechanical equipment automated processing operation table according to claim 2, characterized in that: The base (1) is provided with a driving assembly for driving the first slide plate (21) to move, the driving assembly comprising two rotating shafts (20) connected to the base (1) and rotating in sequence in a direction toward the middle of the base (1), and two groups of conveying wheels (33) coaxially fixed on the two rotating shafts (20), the outer sides of the two groups of conveying wheels (33) are sleeved with conveying belts (32), and the first slide plate (21) is fixed between the two conveying belts (32).

4. The electromechanical equipment automated processing operation table according to claim 3, characterized in that: One end of the two rotating shafts (20) located in the middle of the base (1) in the two driving assemblies is coaxially fixed with a gear (19), and the two gears (19) are meshingly connected.

5. The electromechanical equipment automated processing operation table according to claim 3, characterized in that: A second slide plate (26) is fixedly installed between the two conveyor belts (32), and the thickness of the second slide plate (26) is greater than the distance between the top of the conveyor belt (32) and the bottom of the slide bar (22).

6. The electromechanical equipment automated processing operation table according to claim 5, characterized in that: The bottom of the base (1) is slidably connected to a collecting box (16), and a brush (27) is fixed to one side of the second slide plate (26), with the end of the brush (27) extending to the inner bottom surface of the base (1).

7. The electromechanical equipment automated processing operation table according to claim 1, characterized in that: A protective frame (2) is fixedly mounted on the base (1), two slides (12) are slidably connected to the base (1), the air blowing assembly comprises an air blowing pipe (7) arranged between the two slides (12) and a plurality of air blowing nozzles (8) fixed on the air blowing pipe (7), and the air blowing pipe (7) is located above the protective frame (2).

8. The electromechanical equipment automated processing operation table according to claim 7, characterized in that: An air pump (14) is fixedly mounted on one side of the base (1), and a hose (13) is connected between the air pump (14) and one end of the air blowing pipe (7).

9. The electromechanical equipment automated processing operation table according to claim 7, characterized in that: Two screw rods (15) are rotatably connected to the base (1), and the two screw rods (15) are respectively screwed and penetrate the two slides (12). A pulley (17) is coaxially fixed to one end of the two screw rods (15), and a belt (18) is connected between the two pulleys (17).

10. The electromechanical equipment automated processing operation table according to claim 7, characterized in that: The air blowing pipe (7) is rotatably connected to both slides (12); one end of the air blowing pipe (7) is fixedly connected to a rotating rod (9); an electric push rod (11) is fixedly mounted on one of the slides (12); a connecting rod (10) is rotatably connected between the telescopic end of the electric push rod (11) and one end of the rotating rod (9).

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