CN216859270U

CN216859270U - Bent pipe sander

Info

Publication number: CN216859270U
Application number: CN202220503593.3U
Authority: CN
Inventors: 郝松涛; 李旭
Original assignee: Jiangmen Yuding Automation Equipment Co ltd
Current assignee: Jiangmen Yuding Automation Equipment Co ltd
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-07-01
Anticipated expiration: 2032-03-07

Abstract

The utility model discloses a bent pipe sanding machine, which relates to the technical field of sanding machines and comprises a polishing mechanism and a belt pressing device, wherein the polishing mechanism is used for polishing a bent pipe, the polishing mechanism comprises a base and a rotating abrasive belt, the abrasive belt is positioned above the base, the belt pressing device is used for enabling the abrasive belt to be tightly attached to the bent pipe, the belt pressing device comprises a belt abutting wheel and an elastic structure connected with the belt abutting wheel, the belt abutting wheel abuts against the inner side of the abrasive belt, the outer side of the abrasive belt is used for being in contact with the bent pipe, the elastic structure enables the belt abutting wheel to have the tendency of outward extrusion, and the belt abutting wheel can be driven to move inwards when the abrasive belt is extruded by external force and moves inwards. So set up, solved prior art medium and small ray apparatus and to the not good problem of polishing treatment effect of the return bend that has the crookedness.

Description

Bent pipe sander

Technical Field

The utility model relates to the technical field of sanding machines, in particular to a bent pipe sanding machine.

Background

The circular tube has a surface polishing process in the production process, and is generally carried out by using a sander. Generally, a sander is configured such that two sanding belts rotate at a high speed under the driving of a belt wheel, a conveying mechanism conveys a circular tube to the sanding belts, and when the circular tube rotates and moves between the two sanding belts, the two sanding belts can perform full polishing treatment on the outer surface of the circular tube.

However, the sanding machine in the prior art is suitable for polishing a straight pipe, and for a bent pipe with curvature, the bent pipe has the problems that certain parts are not in sufficient contact with an abrasive belt and the polishing treatment is not in place in the polishing process, so that the polishing degree of one bent pipe is different, the polishing precision cannot be guaranteed, and the product quality is influenced.

Therefore, how to solve the problem that the polishing treatment effect of the sander on the bent pipe with the curvature in the prior art is not good is an important technical problem to be solved by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bent pipe sanding machine, which solves the problem of poor polishing treatment effect on a bent pipe with curvature compared with a sanding machine in the prior art. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the utility model are described in detail in the following.

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

the utility model provides a bent pipe sander, which comprises:

the polishing mechanism is used for polishing the bent pipe and comprises a base and a rotating abrasive belt, and the abrasive belt is positioned above the base;

the belt pressing device comprises a belt abutting wheel and an elastic structure connected with the belt abutting wheel, the belt abutting wheel abuts against the inner side of the abrasive belt, the outer side of the abrasive belt is used for being in contact with the bent pipe, the elastic structure enables the belt abutting wheel to have the tendency of outwards extruding, and the abrasive belt can drive the belt abutting wheel to inwards move when being extruded by external force to inwards move.

Preferably, the polishing machine further comprises a plurality of displacement mechanisms, and the displacement mechanisms can drive the plurality of polishing mechanisms to approach and separate from each other.

Preferably, still include rotary mechanism, polishing mechanism is equipped with a plurality of and all is located well frame, rotary mechanism can drive well frame is rotatory.

Preferably, a belt tensioning arrangement for adjusting the tightness of the sanding belt is also included.

Preferably, polishing mechanism is equipped with two sets of relative positions, displacement mechanism includes double-end ball, driving machine, double-end ball includes double-end lead screw, two covers the displacement nut on the double-end lead screw, the driving machine drives the double-end lead screw rotates, the base with the relative fixed connection of displacement nut.

Preferably, the polishing machine further comprises a guide rail connected with the base in a sliding manner, and the extension direction of the guide rail is consistent with the moving direction of the polishing mechanism.

Preferably, the abrasive belt tensioning structure comprises a tensioning wheel, a wheel shaft, a wheel seat, a sliding rail, a sliding seat, a fixed seat, an adjusting screw and a compression spring, the abrasive belt is sleeved on the tensioning wheel, the tensioning wheel is rotatably connected to the wheel seat through the wheel shaft, the sliding rail and the fixed seat are both fixed on the base, the adjusting screw is in threaded connection with the fixed seat, the adjusting screw abuts against the sliding seat, the sliding seat is fixedly connected with the wheel seat, the moving direction of the sliding seat is consistent with that of the adjusting screw, the compression spring is sleeved on the adjusting screw, and two ends of the compression spring apply pressure to the sliding seat and the fixed seat respectively.

Preferably, the elastic structure includes a bending connecting rod and an extension spring, the middle of the bending connecting rod is rotatably connected with the base, the first end of the bending connecting rod is connected with the belt abutting wheel, two ends of the extension spring are respectively fixed at the second end of the bending connecting rod and the base, and the extension spring can apply a pulling force to the second end of the bending connecting rod.

Preferably, the press belt device further comprises an adjustable limiting structure, the adjustable limiting structure comprises a base fixedly connected to the base and a rotation stopping part in threaded connection with the base, and the rotation stopping part can abut against the bending connecting rod to prevent the bending connecting rod from continuously rotating.

Preferably, the base and two sides of the displacement direction of the displacement nut are both connected with foldable dust covers, the foldable dust covers connected with the base are sleeved around the guide rails, and the foldable dust covers connected with the displacement nut are sleeved around the double-end screw rod.

According to the technical scheme, the elbow sanding machine comprises a polishing mechanism and a belt pressing device, the polishing mechanism is used for polishing elbows, the polishing mechanism comprises a base and a rotating abrasive belt, the abrasive belt is located above the base, the belt pressing device is used for enabling the abrasive belt to be tightly attached to the elbows, the belt pressing device comprises a belt abutting wheel and an elastic structure connected with the belt abutting wheel, the belt abutting wheel abuts against the inner side of the abrasive belt, the outer side of the abrasive belt is used for being in contact with the elbows, the elastic structure enables the belt abutting wheel to have the tendency of outward extrusion, and the belt pressing device can drive the belt abutting wheel to move inwards when being extruded inwards by external force. So set up, the outside and the return bend contact production relative friction of abrasive band, it can inwards move to receive abrasive band extrusion pressure to support the band pulley, when the abrasive band is not inwards extruded and is supported the band pulley, it has outside trend to support the band pulley, constantly keep supporting band pulley and abrasive band and offset and make the abrasive band press on the return bend, abrasive band and return bend in close contact with, the return bend of being polished is at rotatory in-process, because of the influence of crookedness, the return bend can inwards extrude the abrasive band in turn or outwards be extruded by the abrasive band under the effect of supporting the band pulley, the abrasive band has one kind and is produced along with the change of return bend position elastic deformation, and then guarantee the unanimity of the elbow degree of polishing everywhere, the not good problem of polishing treatment effect of the return bend that has the crookedness has been solved to the abrasive band among the prior art.

Drawings

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

FIG. 1 is a schematic view of the internal structure of an elbow sander according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a polishing mechanism, a belt pressing device and a belt tensioning structure according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a displacement mechanism and a rotation mechanism according to an embodiment of the present invention;

fig. 4 is an external schematic view of an elbow sander according to an embodiment of the present invention.

In fig. 1-4:

1. an abrasive belt; 2. a driving wheel; 3. a driven wheel; 4. a first motor; 5. an upper plate; 6. a lower frame; 7. erecting a rod; 8. a belt abutting wheel; 9. bending the connecting rod; 10. an extension spring; 11. a base; 12. a rotation stopping member; 13. a second motor; 14. a double-ended lead screw; 15. a displacement nut; 16. a middle engine base; 17. a third motor; 18. a rotation support plate; 19. a guide rail; 20. a slider; 21. a foldable dust cover; 22. a tension wheel; 23. a wheel axle; 24. a wheel seat; 25. a slide rail; 26. a slide base; 27. a fixed seat; 28. an adjusting screw; 29. a compression spring; 30. a housing; 31. a base frame; 32. and a speed reducer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.

An object of this embodiment is to provide an elbow sanding machine, it can solve prior art middle abrasive machine to the not good problem of polishing treatment effect of the elbow pipe that has the crookedness.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. The embodiments described below do not limit the scope of the utility model described in the claims. The entire contents of the configurations shown in the following embodiments are not limited to those required as solutions of the utility models described in the claims.

Referring to fig. 1-4, the present embodiment provides a bend pipe sander, which includes a polishing mechanism and a belt pressing device, the polishing mechanism is used for sanding bend pipes, the polishing mechanism includes a base, a rotating abrasive belt 1, a driving wheel 2, a driven wheel 3, and a first motor 4, wherein, the abrasive belt 1, the driving wheel 2 and the driven wheel 3 are all positioned above the base, the first motor 4 drives the driving wheel 2 to rotate, the belt pressing device is used for enabling the abrasive belt 1 to be tightly attached to the bent pipe, the belt pressing device comprises a belt abutting wheel 8 and an elastic structure connected with the belt abutting wheel 8, the abrasive belt 1 is sleeved around the driving wheel 2, the driven wheel 3 and the belt abutting wheel 8, the belt abutting wheel 8 abuts against the inner side of the abrasive belt 1, the outer side of the abrasive belt 1 is used for being contacted with the bent pipe, the elastic structure enables the belt abutting wheel 8 to have the trend of outward extrusion, and when the abrasive belt 1 is extruded by external force to move inwards, the belt abutting wheel 8 can be driven to move inwards, and the abrasive belt 1 and the belt abutting wheel 8 are kept in close contact constantly. So set up, the outside and the return bend contact production relative friction of abrasive band 1, it can inwards move to receive abrasive band 1 extrusion pressure to support band pulley 8, abrasive band 1 is not inwards extruded when supporting band pulley 8, it has outside trend to support band pulley 8, constantly keep supporting band pulley 8 and abrasive band 1 and offset and make abrasive band 1 press on the return bend, abrasive band 1 and return bend in close contact with, the return bend of being polished is at rotatory in-process, because of the influence of crookedness, the return bend can inwards extrude abrasive band 1 alternately or by abrasive band 1 outwards extrusion under the effect of supporting band pulley 8, abrasive band 1 has one kind along with the elastic deformation of return bend position change production, and then guarantee the unanimity of the per se polishing degree of return bend, the not good problem of polishing treatment effect of abrasive band machine to the return bend that has the crookedness among the prior art has been solved.

It should be noted that the base of the polishing mechanism includes an upper plate 5, a lower frame 6 fixedly connected below the upper plate 5, and a vertical rod 7 fixedly connected with the lower frame 6, the upper plate 5 is horizontally disposed, the driving wheel 2 and the driven wheel 3 are both rotatably connected to the upper plate 5, the first motor 4 is mounted below the upper plate 5 and beside the lower frame 6, and the vertical rod 7 is vertically disposed.

As a specific embodiment, the elastic structure includes a bending connecting rod 9 and an extension spring 10, a middle portion, preferably a bending portion, of the bending connecting rod 9 is rotatably connected to the upper plate 5 of the base, a first end of the bending connecting rod 9 is connected to the pulley 8, two ends of the extension spring 10 are respectively fixed to a second end of the bending connecting rod 9 and the base, and the extension spring 10 is capable of applying a pulling force to the second end of the bending connecting rod 9. Preferably, the bending position of the bending connecting rod 9 is a right angle, that is, a right-angle connecting rod.

Furthermore, the belt pressing device further comprises an adjustable limiting structure, the adjustable limiting structure comprises a base 11 fixedly connected to the base and a rotation stopping piece 12 in threaded connection with the base 11, the rotation stopping piece 12 is in a screw shape, and the rotation stopping piece 12 can abut against the bending connecting rod 9 to prevent the bending connecting rod 9 from continuously rotating. When the bending link 9 rotates to contact with the rotation stopper 12, the extension spring 10 is extended, and the position of the rotation stopper 12 is changed, thereby controlling the stop position of the bending link 9. So set up, elastic construction is equivalent to a torsional spring, realizes the automatic adjustment along with the change of return bend position.

As a preferred embodiment, the elbow sanding machine further comprises a plurality of displacement mechanisms, and the displacement mechanisms can drive the polishing mechanisms to mutually approach and separate from each other. So set up, through adjusting the distance between a plurality of polishing mechanism, can make this return bend grinder can polish processing to the return bend of unidimensional not.

As specific embodiment, polishing mechanism is equipped with the relative two sets of position, displacement mechanism includes double-end ball, the driving machine, double-end ball is common structure among the prior art, the driving machine can set up to second motor 13, it mainly includes double-end screw 14, two cover displacement nuts 15 on double-end screw 14, the driving machine drives double-end screw 14 and rotates, polishing mechanism's base and displacement nut 15 relatively fixed connection, when second motor 13 corotation, two sets of polishing mechanisms are close to each other, when second motor 13 reversal, two sets of polishing mechanisms keep away from each other.

In a more preferred embodiment, the bent pipe sander further comprises a rotating mechanism, a middle machine base 16 is arranged below the polishing mechanism, a plurality of polishing mechanisms are arranged on the middle machine base 16, and the rotating mechanism is arranged below the middle machine base 16 and can drive the middle machine base 16 to rotate. With the arrangement, when the elbow is conveyed to the abrasive belt 1, the elbow does not need to rotate, the polishing structure rotates to polish the pipe wall of the elbow, and the elbow only needs to be simply displaced up and down. It should be noted that the rotating mechanism is mounted on the bottom base 31, that is, the middle base 16 and the bottom base 31 can generate relative rotation movement with the vertical direction as the axis.

As a specific embodiment, the rotating mechanism includes a third motor 17 and a speed reducer 32 in transmission connection with the third motor 17, the middle base 16 is in transmission connection with the speed reducer 32 through a rotation support disc 18, the rotation support disc 18 is fixedly connected with the bottom of the middle base, and the rotation support disc 18 is connected with an output shaft of the speed reducer 32.

It should be noted that the displacement mechanism is located in the middle machine base 16, the vertical rod 7 of the base penetrates through the middle machine base 16 and is connected with the displacement nut 15, a sliding groove space for displacement of the vertical rod 7 is correspondingly arranged on the middle machine base 16, and two ends of the double-head screw 14 are rotatably connected with the middle machine base 16 through thrust bearings.

In addition, the elbow sanding machine further comprises a guide rail 19 which is connected with the lower frame 6 of the base in a sliding mode, the two guide rails 19 are parallel to each other and are located on the middle machine base 16, and the extending direction of the guide rail 19 is consistent with the moving direction of the polishing mechanism, so that the polishing mechanism can move stably, and the precision of the whole equipment is improved. Specifically, the bottom surface of the lower frame 6 is provided with a slide block 20 fixedly connected, the slide block 20 is provided with a groove matched with the guide rail 19, and the opening of the groove is smaller than the groove bottom, so as to prevent the slide block 20 from being vertically separated from the guide rail 19.

In order to protect the polishing mechanism from dust and dust in the workshop environment and enable the displacement to be more stable and accurate, the base and two sides of the displacement nut 15 in the displacement direction are connected with foldable dust covers 21 in an organ-shaped pipe shape, the foldable dust covers 21 connected with the base cover the guide rails 19, and the foldable dust covers 21 connected with the displacement nut 15 cover the double-head screw 14.

Moreover, the elbow sanding machine further comprises an abrasive belt tensioning structure for adjusting the tightness of the abrasive belt 1, namely tensioning or loosening the abrasive belt 1, so that proper static friction is provided between the abrasive belt 1 and the driving wheel 2, the driven wheel 3 and the belt supporting wheel 8, and slipping is avoided.

Further, the abrasive belt tensioning structure can be specifically configured to include a tensioning wheel 22, a wheel axle 23, a wheel seat 24, a sliding rail 25, a sliding seat 26, a fixed seat 27, an adjusting screw 28, and a compression spring 29, the abrasive belt 1 is sleeved on the tensioning wheel 22, the tensioning wheel 22 is rotatably connected to the wheel seat 24 through the wheel axle 23, specifically, the wheel axle 23 is vertically and fixedly connected to the wheel seat 24, the tensioning wheel 22 is rotatably connected to the wheel axle 23 through a bearing, the wheel seat 24 has a space for the tensioning wheel 22 to smoothly rotate, the sliding rail 25 and the fixed seat 27 are both fixed to the base, the adjusting screw 28 is in threaded connection with the fixed seat 27, the adjusting screw 28 abuts against the sliding seat 26, the sliding seat 26 is fixedly connected to the wheel seat 24, the sliding seat 26 and the adjusting screw 28 have the same moving direction, the compression spring 29 is sleeved on the adjusting screw 28, and two ends respectively apply pressure to the sliding seat 26 and the fixed seat 27, when the adjusting screw 28 is screwed in, it promotes slide 26 to slide to the direction that is close to tight pulley 22 along slide 25, and slide 26 promotes wheel seat 24 and moves to rise abrasive belt 1, and when adjusting screw 28 retreats, slide 26 slides to the direction that is far away from tight pulley 22 along slide 25, and wheel seat 24 moves, thereby adjusts loose abrasive belt 1, in order to carry out corresponding regulation machine, change abrasive belt 1 etc. operation.

It should be noted that, in order to prevent the metal chips from splashing around, the polishing mechanism is provided with an outer cover 30 around the polishing mechanism, and the top of the outer cover 30 is provided with an opening so that the bent pipe to be processed extends into the opening.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments. The multiple schemes provided by the utility model comprise basic schemes, are independent from each other and are not restricted with each other, but can be combined with each other under the condition of no conflict, so that multiple effects are realized together.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An elbow sander, comprising:

the polishing mechanism is used for polishing the bent pipe and comprises a base and a rotating abrasive belt (1), wherein the abrasive belt (1) is positioned above the base;

the belt pressing device is used for enabling the abrasive belt (1) to be tightly attached to a bent pipe and comprises a belt abutting wheel (8) and an elastic structure connected with the belt abutting wheel (8), the belt abutting wheel (8) abuts against the inner side of the abrasive belt (1), the outer side of the abrasive belt (1) is used for being in contact with the bent pipe, the elastic structure enables the belt abutting wheel (8) to have the tendency of outwards extruding, and the abrasive belt (1) can drive the belt abutting wheel (8) to inwards move when being extruded by external force to inwards move.

2. The elbow sander of claim 1, further comprising a plurality of said polishing mechanisms, said plurality of said polishing mechanisms being movable toward and away from each other by said displacement mechanism.

3. The elbow sander of claim 1, further comprising a plurality of polishing mechanisms disposed on the center housing (16), the rotating mechanisms being capable of rotating the center housing (16).

4. The elbow sander of claim 1, further comprising a belt tensioning arrangement for adjusting the tightness of the sanding belt (1).

5. The elbow sanding machine according to claim 2, wherein the polishing mechanism has two sets of opposite positions, the displacement mechanism comprises a double-head ball screw and a driving machine, the double-head ball screw comprises a double-head screw (14) and two displacement nuts (15) sleeved on the double-head screw (14), the driving machine drives the double-head screw (14) to rotate, and the base is fixedly connected with the displacement nuts (15) relatively.

6. The elbow sander of claim 5, further comprising a guide rail (19) slidably connected to the base, wherein the guide rail (19) extends in a direction that is coincident with the direction of movement of the polishing mechanism.

7. The pipe bending sander according to claim 4, wherein the belt tensioning structure comprises a tensioning wheel (22), a wheel shaft (23), a wheel seat (24), a sliding rail (25), a sliding seat (26), a fixed seat (27), an adjusting screw (28) and a compression spring (29), the sanding belt (1) is sleeved on the tensioning wheel (22), the tensioning wheel (22) is rotatably connected to the wheel seat (24) through the wheel shaft (23), the sliding rail (25) and the fixed seat (27) are both fixed to the base, the adjusting screw (28) is in threaded connection with the fixed seat (27), the adjusting screw (28) abuts against the sliding seat (26), the sliding seat (26) is fixedly connected with the wheel seat (24), the sliding seat (26) and the adjusting screw (28) have the same moving direction, the compression spring (29) is sleeved on the adjusting screw (28) and has two ends respectively facing the sliding seat (26) and the compression spring (29) The holder (27) exerts a pressure.

8. The elbow sanding machine according to claim 1, wherein the elastic structure comprises a bending connecting rod (9) and an extension spring (10), the middle part of the bending connecting rod (9) is rotatably connected with the base, the first end of the bending connecting rod (9) is connected with the belt abutting wheel (8), the two ends of the extension spring (10) are respectively fixed on the second end of the bending connecting rod (9) and the base, and the extension spring (10) can apply tension to the second end of the bending connecting rod (9).

9. The elbow sanding machine according to claim 8, wherein the belt pressing device further comprises an adjustable limiting structure, the adjustable limiting structure comprises a base (11) fixedly connected to the base, and a rotation stopping member (12) in threaded connection with the base (11), and the rotation stopping member (12) can abut against the bending connecting rod (9) to prevent the bending connecting rod (9) from rotating continuously.

10. The elbow sander according to claim 6, wherein foldable dust covers (21) are connected to both sides of the base and the displacement nut (15) in the displacement direction, the foldable dust covers (21) connected to the base cover around the guide rails (19), and the foldable dust covers (21) connected to the displacement nut (15) cover around the double-headed lead screw (14).