CN210475739U - Press from both sides material mechanism and cut pearl equipment thereof - Google Patents

Abstract

The utility model relates to a material clamping mechanism, which comprises an installation panel, a rotating power piece arranged on the installation panel, and a rotating shaft in transmission connection with the rotating power piece; a through hole for passing materials is formed in the rotating shaft; and one end of the through hole is provided with a clamping assembly for clamping materials, so that the clamping assembly clamps the materials to rotate along with the rotating shaft. The utility model discloses it transmits first driving lever to press from both sides material mechanism through first cam piece to make first driving lever obtain power, and then stir sliding sleeve extrusion elastic component and move, so that two clamp splices loosen. Under the state that the clamping blocks clamp the materials, the elastic force of the elastic piece stops against the sliding sleeve, so that the inner wall of the sliding sleeve extrudes the clamping blocks, and the clamping blocks are folded. The smooth transition of the first concave-convex surface of the first cam piece of the mechanism enables the material to be clamped in a stepless manner in the process of clamping the material, the damage to the material is reduced, and the material is clamped more firmly.

Description

Press from both sides material mechanism and cut pearl equipment thereof

Technical Field

The utility model relates to a jewelry production facility, more specifically say and indicate a material clamping mechanism and cut pearl equipment thereof.

Background

The prior production of a plurality of bead chain jewelry is manual or semi-automatic bead grinding, bead cutting and the like, the production efficiency is low, and the defective rate is high. In addition, in the bead cutting process of the existing bead cutting equipment, the bead cutting notch is rough, subsequent processing is required, one-step forming cannot be realized, and the processing cost is high.

Particularly, in the existing bead cutting equipment, when the material clamping mechanism clamps materials, the materials are not tightly clamped and are easy to fall off; or the materials can not be driven to rotate freely after being clamped, so that the production efficiency is not high; or when the material is tubular, clamping often occurs to clamp and explode.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's defect, provide a press from both sides material mechanism and cut pearl equipment thereof.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a material clamping mechanism comprises an installation panel, a rotating power piece arranged on the installation panel, and a rotating shaft in transmission connection with the rotating power piece; a through hole for passing materials is formed in the rotating shaft; and one end of the through hole is provided with a clamping assembly for clamping materials, so that the clamping assembly clamps the materials to rotate along with the rotating shaft.

The further technical scheme is as follows: the clamping assembly comprises a sliding sleeve which is connected to the rotating shaft in a sliding mode and at least two clamping blocks which are hinged to the discharge end of the through hole; the clamping block moves on one end of the through hole in an opening and closing manner; when the sliding sleeve moves to one end of the clamping block, the inner wall of the sliding sleeve extrudes the clamping block to enable the clamping block to be relatively folded so as to clamp the material; when the sliding sleeve is far away from one end of the clamping block, the clamping block is not subjected to extrusion force so as to loosen materials.

The further technical scheme is as follows: the clamping assembly further comprises a first deflector rod; the first deflector rod is hinged with the mounting panel; the first shifting lever obtains power and moves far away from one end of the sliding sleeve, so that the end, close to the sliding sleeve, of the first shifting lever pushes the sliding sleeve to move far away from the clamping block, and the clamping block is loosened.

The further technical scheme is as follows: the clamping block is provided with a die cavity at the discharge end of the through hole for installing a die for clamping materials.

The further technical scheme is as follows: the material clamping mechanism also comprises an installation seat fixed on the installation panel; the rotating shaft is rotationally coupled to the mounting seat; the rotating shaft is sleeved with an elastic piece; one end of the elastic piece is abutted against the mounting seat, and the other end of the elastic piece is abutted against the sliding sleeve.

The further technical scheme is as follows: the middle part of the first deflector rod is hinged with the mounting panel, wherein one end of the first deflector rod is abutted against the sliding sleeve, and the other end of the first deflector rod is in transmission connection with a loose clamp power piece; the loose clamp power piece applies power to one end, far away from the sliding sleeve, of the first shifting rod, so that the first shifting rod is close to one end, close to the sliding sleeve, of the sliding sleeve to push the sliding sleeve to move.

The further technical scheme is as follows: the loose clamp power piece is in transmission connection with a power shaft; the power shaft is provided with a first cam piece; one end of the first driving lever is in transmission connection with the first cam piece; the power shaft is arranged on the lower surface of the mounting panel.

The further technical scheme is as follows: one end of the first cam piece is provided with a first concave-convex surface, and one end of the first deflector rod is connected with the surface of the first concave-convex surface in a sliding manner; when the power shaft rotates, one end of the first deflector rod moves along the surface contour of the first concave-convex surface, so that the other end of the first deflector rod obtains power.

The further technical scheme is as follows: one end of the first driving lever close to the first cam piece is rotationally connected with a first roller piece; the first roller piece is in rolling connection with the first concave-convex surface of the first cam piece.

A bead cutting device with a material clamping mechanism comprises a mounting rack, wherein the material clamping mechanism is arranged on the mounting rack; the mounting panel is arranged at the upper end of the mounting frame.

Compared with the prior art, the utility model beneficial effect be: the utility model discloses it transmits first driving lever to press from both sides material mechanism through first cam piece to make first driving lever obtain power, and then stir sliding sleeve extrusion elastic component and move, so that two clamp splices loosen. Under the state that the clamping blocks clamp the materials, the elastic force of the elastic piece stops against the sliding sleeve, so that the inner wall of the sliding sleeve extrudes the clamping blocks, and the clamping blocks are folded. The smooth transition of the first concave-convex surface of the first cam piece of the mechanism enables the material to be clamped in a stepless manner in the process of clamping the material, the damage to the material is reduced, and the material is clamped more firmly.

The utility model discloses a back is fixed to the material mechanism that presss from both sides to rotate power spare and drive the material and continue to rotate, the cutting sword is by feeding and rotary motion is in order to cut the material to the material, and then makes the material cut under the condition of rotation, and the incision of the chain pearl of this process cutting is comparatively smooth, can one shot forming, need not the processing in later stage. The utility model discloses simple structure can cut the pearl to the material automatically to one shot forming, production efficiency is high, and the defective percentage is low.

The invention is further described with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a three-dimensional structure diagram of the bead cutting device with a material clamping mechanism of the present invention;

FIG. 2 is a view of the underside structure of the mounting panel of the bead cutting device with a material clamping mechanism of the present invention;

FIG. 3 is a structural diagram of the main mechanism of the bead cutting device with a material clamping mechanism of the present invention;

FIG. 4 is a structural diagram of a material clamping mechanism of the bead cutting device with the material clamping mechanism of the present invention;

FIG. 5 is an exploded view and a partial sectional view of a clamping assembly of the bead cutting device with a material clamping mechanism according to the present invention;

fig. 6 is a three-dimensional structure diagram and a partial enlarged view of another viewing angle of the bead cutting device with the material clamping mechanism of the present invention.

Detailed Description

In order to more fully understand the technical content of the present invention, the technical solution of the present invention will be further described and illustrated with reference to the following specific embodiments, but not limited thereto.

Fig. 1 to fig. 6 show drawings according to embodiments of the present invention.

A bead cutting device with a clamping mechanism is shown in figures 1 and 2 and comprises a mounting frame 10, the clamping mechanism 20 arranged on the mounting frame 10, a feeding mechanism 30 arranged at the output end of the clamping mechanism 20, and a cutting mechanism 40 arranged at the discharge end of the feeding mechanism 30. The material clamping mechanism 20 clamps and fixes the material and rotates, so that the cutting mechanism 40 performs cutting processing on the material. The material clamping mechanism 20 releases the material so that the material feeding mechanism 30 drives the material to feed. Generally, the material is tubular and long. The material clamping mechanism 20 clamps and rotates the material, so that the cutting mechanism 40 can axially process the material; when the material needs to be fed, the clamping mechanism 20 releases the material, and the feeding mechanism 30 clamps the material and moves for a set distance, wherein the general moving distance is integral multiple of the diameter of the bead-shaped single body.

The upper end of the mounting frame 10 is provided with a mounting panel 11, and the cutting mechanism 40, the feeding mechanism 30 and the clamping mechanism 20 are all arranged above the mounting panel 11.

As shown in fig. 3 and 4, the material clamping mechanism 20 includes a rotating power member 21 for rotating the material, and a rotating shaft 22 in transmission connection with the rotating power member 21. The rotating shaft 22 is provided inside with a through hole 221 for passing the material. The discharge end of the through hole 221 is provided with a clamping assembly 23 for clamping the material, so that the clamping assembly 23 clamps the material to rotate along with the rotating shaft 22. The material passes through one end of the through hole 221, and a clamping assembly 23 is arranged at the other end, so that the material can be clamped at the other end. The rotating shaft 22 is provided with a synchronous wheel at the periphery, and is in transmission connection with the synchronous wheel provided at the power output end of the rotating power member 21 (which is a motor) through a synchronous belt.

When the material passes through the through hole 221 and is clamped and fixed by the clamping assembly 23, the rotating power piece 21 drives the rotating shaft 22 to rotate, so that the material also rotates; when the material is released from the clamping assembly 23, the rotary power member 21 stops rotating without rotating the rotary shaft 22, and the material is fed by the material mechanism 30.

As shown in FIG. 5, the clamping assembly 23 includes a sliding sleeve 231 slidably coupled to the rotating shaft 22, and at least two clamping blocks 232 hinged to the discharge end of the through hole 221. The clamping block 232 moves in an opening and closing manner at one end of the through hole 221. When the sliding sleeve 231 slides close to one end of the clamping block 232, the inner wall of the sliding sleeve 231 presses the clamping block 232 to enable the clamping block 232 to be relatively folded, so as to clamp the material. When the sliding sleeve 231 is far away from one end of the clamping block 232, the clamping block 232 is not pressed to loosen the material. The clamping blocks 232 are hinged to the end of the rotating shaft 22, and when the sliding sleeve 231 slides towards the clamping blocks 232, the clamping blocks 232 will be folded to "grab" the material because at least two clamping blocks 232 are pressed by the sliding sleeve 231. When the sliding sleeve 231 leaves one end of the clamping block 232, the clamping block 232 is not subjected to the extrusion force of folding, and is in a loosening state, and at the moment, the material is in a free state.

As shown in fig. 3 and 4, an elastic member 234 is disposed between the sliding sleeve 231 and the mounting frame 10. The elastic member 234 elastically abuts against the sliding sleeve 231, so that the sliding sleeve 231 abuts against one end of the clamping block 232. Preferably, the elastic member 234 is a spring, which is sleeved outside the rotating shaft 22 and is in a compressed state, so that the sliding sleeve 231 is subjected to an elastic force to abut against one end of the clamping block 232, and therefore the clamping block 232 is in a closed state in a normal state.

The clamping assembly 23 further includes a first driving lever 233. One end of the first toggle lever 233 pushes the sliding sleeve 231 away from one end of the clamping block 232, so that the clamping block 232 is released. When the clamping block 232 needs to be released, the other end of the first driving lever 233 applies power and moves, and since the middle of the first driving lever 233 is crossed with the mounting frame 10, the end close to the sliding sleeve 231 moves in the opposite direction, so as to drive the sliding sleeve 231, so that the sliding sleeve 231 compresses the elastic member 234, and then the end far away from the clamping block 232, and the clamping block 232 is released.

Specifically, the outer side of the clamping block 232 is provided with a pressing portion 2321, so as to be in contact with and pressed against the inner wall of the sliding sleeve 231. The pressing portion 2321 is convex in the radial direction of the rotation shaft 22 to form a slope structure. The inner wall of the sliding sleeve 231 is provided with an inclined plane matched with the extrusion part 2321, so that the clamping blocks 232 can be synchronous when sliding extrusion is carried out, the stress is uniform, and materials cannot be extruded and exploded.

More specifically, as shown in fig. 5, the end of the rotating shaft 22 is provided with a groove 222, and the clamping block 232 is provided with a hinged portion 2322. The hinged portion 2322 is pivotally coupled to the interior of the recess 222 by a pin. The clamping block 232 is hinged inside the groove 222 by a hinge 2322 to provide a better transition of the rotation shaft 22 with the clamping block 232.

In this embodiment, there are two clamping blocks 232, so the two clamping blocks 232 can be made into a semi-cylinder. When the two semi-cylindrical clamping blocks 232 are opposite, the diameter of the enclosed space is equivalent to the diameter of the rotating shaft 22. The squeezing portions 2321 of the two clamping blocks 232 form a conical structure, and the diameter of the largest end is larger than the inner diameter of the sliding sleeve 231.

At least two clamping blocks 232 are formed with a mold cavity 2323 at the discharge end of the through hole 221 for mounting a mold for clamping the material. The mold cavity 2323 may accommodate molds of various sizes to accommodate materials of different diameters.

As shown in fig. 3 and 4, the clamping mechanism 20 further includes a mounting seat 24 fixed to the mounting frame 10. The rotating shaft 22 is rotatably coupled to the mount 24. One end of the elastic member 234 abuts against the mounting seat 24, and the other end abuts against the sliding sleeve 231.

Preferably, the sliding sleeve 231 is provided with a stopping portion 2311, so that one end of the first shift lever 233 abuts against the stopping portion 2311. The moving end of the first lever 233 acts on the stopper 2311, so that the stopper 2311 can move smoothly on the rotating shaft 22.

The first driving lever 233 is hinged to the mounting frame 10, wherein one end of the first driving lever 233 abuts against the sliding sleeve 231, and the other end is in transmission connection with the loosening and clamping power element 25. The unclamping power element 25 applies power to an end of the first driving lever 233 far away from the sliding sleeve 231, so that the first driving lever 233 pushes the sliding sleeve 231 to move near the end of the sliding sleeve 231.

The loose clamp power piece 25 is in transmission connection with a power shaft 26. The power shaft 26 is provided with a first cam member 27. One end of the first shift lever 233 is drivingly coupled to the first cam member 27. In this embodiment, the mounting panel 11 at the upper end of the mounting frame 10, the power shaft 26 is rotatably coupled below the mounting panel 11, and the unclamping power member 25, which is a motor, is also provided within the mounting frame 10, and is coupled by a transmission chain.

Wherein the power shaft 26 provides power for the unclamping power member 25. The power shaft 26 is rotatably coupled to the lower surface of the mounting panel 11.

One end of the first cam member 27 is provided with a first concave-convex surface 271, and one end of the first shift lever 233 is slidably connected with the surface of the first concave-convex surface 271. When the power shaft 26 rotates, one end of the first shift lever 233 moves along the contour of the surface of the first concave-convex surface 271, so that the other end of the first shift lever 233 obtains power. The first concave-convex surface 271 is arranged at the end of the first cam member 27, and the concave-convex structure of the first concave-convex surface 271 enables the end of the first shift lever 233 to obtain a set amplitude of movement, thereby pushing the sliding sleeve 231 to move.

For smooth sliding, the first lever 233 is rotatably coupled to the first roller member 272 near one end of the first cam member 27. The first roller member 272 is roll-coupled with the first concave-convex surface 271 of the first cam member 27.

The clamping mechanism 20 drives the first driving lever 233 through the first cam 27, so that the first driving lever 233 obtains power, and further drives the sliding sleeve 231 to press the elastic member 234 to move, so that the two clamping blocks 232 are released. Under the state that the clamping block 232 clamps the material, the elastic force of the elastic member 234 stops against the sliding sleeve 231, so that the inner wall of the sliding sleeve 231 presses the clamping block 232, and the clamping block 232 is closed. The smooth transition of the first concave-convex surface 271 of the first cam member 27 of the mechanism enables the material to be clamped steplessly in the process of clamping the material, reduces the damage to the material and enables the material to be clamped more firmly.

As shown in fig. 1, 2 and 3, the feeding mechanism 30 includes a first power member 31 fixed to the mounting frame 10, and a second power member 32 fixed to a power output end of the first power member 31. The second power member 32 is disposed at the discharge end of the clamping mechanism 20. The second power member 32 clamps the material, and the first power member 31 pushes the second power member 32 to move, so as to achieve the purpose of feeding. Wherein, the first power member 31 and the second power member 32 are both cylinders.

The power output end of the second power member 32 is provided with a clamp 33 for clamping the material. The first power member 31 is parallel to the feeding direction of the material. The movement direction of the gripper 33 is perpendicular to the feeding direction. The clamping blocks 232 are released, the second power member 32 clamps the material, and the first power member 31 pushes the second power member 32 to move so as to feed the material. The clamp 33 is detachably connected with the second power member 32, so that different clamps 33 can be replaced conveniently to adapt to materials with various specifications.

As shown in fig. 1, 2 and 3, the cutting mechanism 40 includes a rotary base 41, a cutting blade 42 rotatably coupled to the rotary base 41, and a cutting power member 43 drivingly coupled to the cutting blade 42. The cutting blade 42 is provided on one side in the feeding direction. The cutting blade 42 is mounted on a blade seat 421 provided. The cutting blade 42 extends outside the blade seat 421 so that the cutting blade 42 can contact the material. The tool holder 421 is provided on the rotating shaft 422, and the rotating shaft 422 is coupled with the rotating base 41. One end of the rotary shaft 422 is drivingly coupled to the cutting power element 43.

The rotary base 41 is fixedly coupled to a feed assembly 44 provided. The feed assembly 44 includes a slide 441 slidably coupled to the mounting frame 10, and a feed power member 45. The slide 441 is provided at a power output end of the feed power member 45 so that the feed power member 45 drives the cutting blade 42 toward or away from the material. The cutting blade 42 is intermittently moved when cutting the material, and needs to be withdrawn from the cutting blade position when cutting a bead, and returns to the cutting blade position to cut the bead after the material is fed.

The feeding power unit 45 comprises a second driving lever 451 hinged to the mounting frame 10, and a second cam member 452 provided on the power shaft 26. One end of the second driving lever 451 is in transmission connection with the second cam piece 452, and the other end is in transmission connection with the sliding seat 441. One end of the second driving lever 451 is slidably coupled to a surface of the second cam member 452.

The second cam member 452 is provided with a second concave-convex surface 4521. The second lever 451 is provided with a second roller 4511 at an end thereof adjacent to the second cam member 452. The second roller 4511 rolls on the surface of the second concave-convex surface 4521 to move the second driving lever 451. A second concave-convex surface 4521 is provided on the outer periphery of the second cam member 452, and the second roller 4511 moves along the surface of the second concave-convex surface 4521 to obtain a set amplitude of movement of the end of the second lever 451, thereby pushing the slider 441 to move.

Wherein, a plurality of inductors 12 are arranged on one side of the power shaft 26, and a convex block or other objects matched with the inductors 12 are arranged on the power shaft 26. The sensor 12 is used for detecting the rotation condition of the power shaft 26 and sending out a control signal. The sensor 12 generates signals for controlling the rotation of the rotary power member 21, the first power member 31, the second power member 32 and the cutting power member 43.

The first cam member 27 and the second cam member 452 are disposed on the power shaft 26, and the first cam member 27 controls the sliding sleeve 231 to move through the first driving lever 233, so as to control the rotation time period and the feeding time period of the material. During the feeding period, the second power member 32 holds the material and then the first power member 31 moves a certain distance. The second cam member 452 controls the feeding or retracting of the cutting blade 42 by the second shift lever 451, and the cutting blade 42 is retracted and does not rotate during the feeding period.

As shown in fig. 3 and 6, the cutting mechanism 40 is provided with a fixed seat 46 in the advancing direction of the material, and the fixed seat 46 is provided close to the cutting blade 42. The holder 46 is provided with a mounting groove for fixing the cutting die 47. The cutting die 47 is used for passing the material, and one side of the cutting die 47 is provided with an opening for the cutting blade 42 to contact the material. The fixing seat 46 and the cutting die 47 can fix the material and position the material during the cutting process.

The specific working process is as follows: after the adjustment is completed, the clamping blocks 232 are closed under the action of the sliding sleeve 231 to fix the material when the material passes through the through hole 221. The rotary power member 21 rotates the rotary shaft 22 to rotate the material. At this time, the feeding mechanism 30 does not operate. The cutting blade 42 is brought into proximity with the material and cuts the material to complete the cutting of the first bead.

After the first bead is cut, the material needs to be fed, and the second bead is cut. The rotating power member 21 stops rotating, and the first cam member 27 drives the first shift lever 233 to move, so that the first shift lever 233 pushes the sliding sleeve 231 to move away from the clamping block 232, and further the clamping block 232 is released. Meanwhile, the second cam member 452 controls the cutter 42 to retreat by the second lever 451. After the material is released, the second power member 32 grips the material, and then the first power member 31 is operated to feed the material. After the material is fed to a certain distance, the second power member 32 releases the material, and at this time, the first driving lever 233 leaves the sliding sleeve 231, so that the sliding sleeve 231 extrudes the clamping block 232 to close, and the material is fixed. The rotary power member 21 rotates the material, and the cutter blades 42 rotate. Meanwhile, the cutter 42 is close to the material under the action of the second driving lever 451 to finish the cutting of the second chain bead.

And (4) circulating the working process to cut the Nth bead.

To sum up, the utility model discloses a press from both sides material mechanism and fix the back to the material to rotate power spare and drive the material and continue to rotate, the cutting sword is by feeding and rotary motion is in order to cut the material to the material, and then makes the material cut under the condition of rotation, and the incision of the chain pearl of this process cutting is comparatively smooth, can one shot forming, need not the processing in later stage. The utility model discloses simple structure can cut the pearl to the material automatically to one shot forming, production efficiency is high, and the defective percentage is low.

The technical content of the present invention is further described by the embodiments only, so that the reader can understand it more easily, but the embodiments of the present invention are not limited thereto, and any technical extension or re-creation according to the present invention is protected by the present invention. The protection scope of the present invention is subject to the claims.

Claims (10)

1. A material clamping mechanism is characterized by comprising an installation panel, a rotating power piece arranged on the installation panel, and a rotating shaft in transmission connection with the rotating power piece; a through hole for passing materials is formed in the rotating shaft; and one end of the through hole is provided with a clamping assembly for clamping materials, so that the clamping assembly clamps the materials to rotate along with the rotating shaft.

2. A clamping mechanism according to claim 1, wherein said clamping assembly comprises a sliding sleeve slidably coupled to the rotatable shaft, and at least two clamping blocks hingedly connected to the discharge end of the through-hole; the clamping block moves on one end of the through hole in an opening and closing manner; when the sliding sleeve moves to one end of the clamping block, the inner wall of the sliding sleeve extrudes the clamping block to enable the clamping block to be relatively folded so as to clamp the material; when the sliding sleeve is far away from one end of the clamping block, the clamping block is not subjected to extrusion force so as to loosen materials.

3. The material clamping mechanism as claimed in claim 2, wherein said clamping assembly further comprises a first shift lever; the first deflector rod is hinged with the mounting panel; the first shifting lever obtains power and moves far away from one end of the sliding sleeve, so that the end, close to the sliding sleeve, of the first shifting lever pushes the sliding sleeve to move far away from the clamping block, and the clamping block is loosened.

4. A clamping mechanism according to claim 3, wherein the clamping block is provided with a die cavity at the discharge end of the through hole for mounting a die for clamping the material.

5. The clamping mechanism as claimed in claim 3, further comprising a mounting seat fixed to the mounting panel; the rotating shaft is rotationally coupled to the mounting seat; the rotating shaft is sleeved with an elastic piece; one end of the elastic piece is abutted against the mounting seat, and the other end of the elastic piece is abutted against the sliding sleeve.

6. The clamping mechanism as claimed in claim 5, wherein the middle part of the first deflector rod is hinged with the mounting panel, wherein one end of the first deflector rod is stopped against the sliding sleeve, and the other end of the first deflector rod is in transmission connection with a loose clamping power piece; the loose clamp power piece applies power to one end, far away from the sliding sleeve, of the first shifting rod, so that the first shifting rod is close to one end, close to the sliding sleeve, of the sliding sleeve to push the sliding sleeve to move.

7. The material clamping mechanism as claimed in claim 6, wherein the loosening and clamping power member is in transmission connection with a power shaft; the power shaft is provided with a first cam piece; one end of the first driving lever is in transmission connection with the first cam piece; the power shaft is arranged on the lower surface of the mounting panel.

8. The clamping mechanism as claimed in claim 7, wherein one end of the first cam member is provided with a first concave-convex surface, and one end of the first shift lever is slidably connected with the surface of the first concave-convex surface; when the power shaft rotates, one end of the first deflector rod moves along the surface contour of the first concave-convex surface, so that the other end of the first deflector rod obtains power.

9. The clamping mechanism as claimed in claim 8, wherein a first roller member is rotatably coupled to the first lever at a position close to the first cam member; the first roller piece is in rolling connection with the first concave-convex surface of the first cam piece.

10. Bead cutting equipment with a clamping mechanism, which is characterized by comprising a mounting frame, the clamping mechanism of any one of claims 1 to 9; the mounting panel is arranged at the upper end of the mounting frame.

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