CN113681953A

CN113681953A - Mechanical drum

Info

Publication number: CN113681953A
Application number: CN202111101158.4A
Authority: CN
Inventors: 官炳政; 李兴瑞; 俞一航; 徐彦虎; 胡勐; 张继锋
Original assignee: Mesnac Co Ltd; Qingdao Mesnac Electromechanical Engineering Co Ltd
Current assignee: Mesnac Co Ltd; Qingdao Mesnac Electromechanical Engineering Co Ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2021-11-23
Also published as: WO2023040138A1

Abstract

The invention provides a mechanical drum. Mechanical drum includes the main shaft subassembly and establishes lock ring subassembly and anti-subassembly of wrapping on the main shaft subassembly respectively, and anti-subassembly of wrapping is two, and two are anti-the subassembly symmetry of wrapping set up in the both sides of lock ring subassembly, and anti-subassembly of wrapping includes: the first anti-wrapping rods are arranged around the circumference of the main shaft assembly at intervals; the first anti-wrapping rods and the second anti-wrapping rods are arranged at intervals in the circumferential direction of the main shaft assembly, and the length of each second anti-wrapping rod is greater than that of each first anti-wrapping rod; and the driving device is in driving connection with the first turn-up rod and the second turn-up rod respectively so as to enable the first turn-up rod and the second turn-up rod to move relative to the main shaft assembly. The invention solves the problem of poor service performance of the all-steel mechanical drum in the prior art.

Description

Mechanical drum

Technical Field

The invention relates to the field of tire production equipment, in particular to a mechanical drum.

Background

The all-steel mechanical drum is used for turning up the tire side by virtue of the turning-up rod, and deep marks formed after rolling of the turning-up rod roller are left at the tire side after turning up. After the tire is vulcanized, the inside of the tire is inflated with certain air pressure, and very obvious fluctuation occurs at the tire side part of the tire, which is known as the phenomenon of 'red sun' in the industry.

The existing all-steel mechanical drum, no matter a double-row rod mechanical drum or a single-row rod mechanical drum, is used for turning the tire side in place once through a long turning rod. When the side wall is turned up to long anti-package pole, because the anti-package pole is than longer, it is less to turn up the pole angle when beginning anti-package side wall, causes the axial pressure of anti-package pole to the side wall great, and the side wall indentation is very dark after the anti-package, causes to appear "red sun" phenomenon after the vulcanization.

Meanwhile, the existing all-steel capsule mechanical drum is provided with an independent capsule below the turnup rod roller, and when the turnup rod is turned up, the capsule is inflated to provide an upward force for the turnup rod, so that the axial pressure of the turnup rod on the tire bead part can be reduced, and the indentation of the tire sidewall is reduced. However, the turn-up speed of the turn-up rod is difficult to be properly matched with the inflation speed of the capsule, the upward thrust on the turn-up rod can be weakened due to slow inflation of the capsule, the effect of pressure reduction marks can be weakened, and the tire side cannot be pressed by the turn-up rod due to fast inflation of the capsule.

Therefore, the problem of poor service performance of the all-steel mechanical drum exists in the prior art.

Disclosure of Invention

The invention mainly aims to provide a mechanical drum to solve the problem that the all-steel mechanical drum in the prior art is poor in service performance.

In order to achieve the above object, according to one aspect of the present invention, there is provided a mechanical drum, including a main shaft assembly, and a locking ring assembly and a turn-up assembly respectively sleeved on the main shaft assembly, where there are two turn-up assemblies, the two turn-up assemblies are symmetrically disposed on two sides of the locking ring assembly, and the turn-up assembly includes: the first anti-wrapping rods are arranged around the circumference of the main shaft assembly at intervals; the first anti-wrapping rods and the second anti-wrapping rods are arranged at intervals in the circumferential direction of the main shaft assembly, and the length of each second anti-wrapping rod is greater than that of each first anti-wrapping rod; and the driving device is in driving connection with the first turn-up rod and the second turn-up rod respectively so as to enable the first turn-up rod and the second turn-up rod to move relative to the main shaft assembly.

Further, the first turning-up rod has a first supporting position and a first retracting position, and when the first turning-up rod is located at the first supporting position, an included angle between the first turning-up rod and the spindle assembly is greater than or equal to 70 degrees and smaller than or equal to 90 degrees.

Further, the second turn-up rod is provided with a second supporting position and a second retracting position, and when the second turn-up rod is located at the second supporting position, the included angle between the second turn-up rod and the spindle assembly is smaller than the included angle between the first turn-up rod and the spindle assembly.

Furthermore, the driving device comprises a first driving assembly and a second driving assembly, the first driving assembly is in driving connection with the first turning-up rods respectively, and the second driving assembly is in driving connection with the second turning-up rods respectively.

Furthermore, at least one part of the second driving assembly can drive the second turn-up rod to move along the axial direction of the spindle assembly, and the second driving assembly can also drive the second turn-up rod to rotate around the second driving assembly.

Further, mechanical drum still includes the limiting plate, and the limiting plate is two, and two limiting plates and two anti-package subassemblies one-to-one, and the limiting plate setting is kept away from one side of lock circle subassembly at second drive assembly, and when the second was turned over the package pole and is in the second and withdraws the position, the second was turned over package pole and limiting plate butt.

Further, the turn-up assembly further comprises at least one first reset piece, and the first reset piece is respectively connected with the driving device and the plurality of first turn-up rods.

Further, the mechanical drum also comprises a plurality of second resetting pieces, and the plurality of second resetting pieces are respectively abutted with the plurality of second turn-up rods.

Furthermore, a plurality of accommodating grooves are formed in the second anti-wrapping rod, the accommodating grooves correspond to the second resetting pieces one by one, the second resetting pieces are rubber rings, and each second resetting piece is sleeved in the accommodating groove corresponding to each second anti-wrapping rod.

Furthermore, a second turnup rod is arranged between two adjacent first turnup rods, and a first turnup rod is arranged between two adjacent second turnup rods.

By applying the technical scheme of the invention, the mechanical drum comprises a main shaft assembly, and a locking ring assembly and a turn-up assembly which are respectively sleeved on the main shaft assembly, wherein the number of the turn-up assemblies is two, the two turn-up assemblies are symmetrically arranged on two sides of the locking ring assembly, and each turn-up assembly comprises a first turn-up rod, a second turn-up rod and a driving device. The first anti-wrapping rods are arranged around the main shaft assembly at intervals in the circumferential direction; the first anti-wrapping rods and the second anti-wrapping rods are arranged at intervals, and the length of each second anti-wrapping rod is greater than that of each first anti-wrapping rod; the driving device is respectively in driving connection with the first turn-up rod and the second turn-up rod so as to enable the first turn-up rod and the second turn-up rod to move relative to the spindle assembly.

When using the machinery drum in this application, because turn-up subassembly has first turn-up pole and second turn-up pole to the length of first turn-up pole is less than the second turn-up pole, so can turn up the package to the tire through a plurality of first turn-up poles of drive earlier, and accomplish at first turn-up pole and turn up the back, drive arrangement can drive a plurality of second turn-up poles and continue to turn up the package to the tire. Therefore, in this application, the purpose of being less than the length of the anti-stick of second through setting the length of first anti-stick to is to drive first anti-stick through drive arrangement and to the latter half of the side wall of tire, be close to the part of centre of a circle on the tire radius promptly, turns over the package, then turns over the package through the remaining part of the anti-stick of drive arrangement drive second to the side wall of tire to realized two segmentation anti-packages, and then reached the purpose that alleviates the side wall indentation. Therefore, the mechanical drum in the application effectively solves the problem of poor use performance of the all-steel mechanical drum in the prior art.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic of the construction of a mechanical drum according to one embodiment of the present invention;

FIG. 2 shows a schematic structural view of a turn-up assembly of the machine drum of FIG. 1;

FIG. 3 shows a schematic configuration of the turn-up assembly of the machine drum of FIG. 2 with the first turn-up bar in a first support position and the second turn-up bar in a second retracted position;

fig. 4 shows a schematic configuration of the turn-up assembly of the machine drum of fig. 2 with the first turn-up bar in the first support position and the second turn-up bar in the second support position.

Wherein the figures include the following reference numerals:

10. a spindle assembly; 20. a lock ring assembly; 30. a reverse packaging component; 31. a first turnup bar; 32. a second turnup bar; 33. a drive device; 331. a first drive assembly; 332. a second drive assembly; 40. a limiting plate; 50. a first reset member; 60. a second reset member.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like, generally refer to the orientation as shown in the drawings, or to the component itself in a vertical, perpendicular, or gravitational orientation; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

In order to solve the poor problem of all steel mechanical drum performance among the prior art, this application provides a mechanical drum.

As shown in fig. 1 to 4, the mechanical drum in the present application includes a main shaft assembly 10, and a locking ring assembly 20 and a turn-up assembly 30 respectively sleeved on the main shaft assembly 10, where there are two turn-up assemblies 30, the two turn-up assemblies 30 are symmetrically disposed on two sides of the locking ring assembly 20, and the turn-up assembly 30 includes a first turn-up rod 31, a second turn-up rod 32, and a driving device 33. The first turnup rods 31 are multiple, and the multiple first turnup rods 31 are arranged around the circumference of the spindle assembly 10 at intervals; the number of the second turn-up rods 32 is multiple, the multiple second turn-up rods 32 are arranged around the circumference of the spindle assembly 10 at intervals, the first turn-up rods 31 and the second turn-up rods 32 are arranged at intervals, and the length of the second turn-up rods 32 is greater than that of the first turn-up rods 31; the driving device 33 is respectively connected with the first turn-up rod 31 and the second turn-up rod 32 in a driving manner so as to enable the first turn-up rod 31 and the second turn-up rod 32 to move relative to the spindle assembly 10.

When the mechanical drum in the application is used, since the turn-up assembly 30 has the first turn-up rod 31 and the second turn-up rod 32, and the length of the first turn-up rod 31 is smaller than that of the second turn-up rod 32, the tires can be turned up by the driving device 33 by first driving the plurality of first turn-up rods 31, and after the first turn-up rod 31 completes the turn-up action, the driving device 33 can drive the plurality of second turn-up rods 32 to continue to turn up the tires. Therefore, in this application, the purpose of setting the length of the first turnup rod 31 to be smaller than the length of the second turnup rod 32 is to drive the first turnup rod 31 to turn up the lower half of the sidewall of the tire, i.e. the portion close to the center of a circle on the radius of the tire, through the driving device 33, and then drive the second turnup rod 32 to turn up the remaining portion of the sidewall of the tire through the driving device 33, thereby realizing two-segment turnup and achieving the purpose of lightening the impression of the sidewall. Therefore, the mechanical drum in the application effectively solves the problem of poor use performance of the all-steel mechanical drum in the prior art.

It should be noted that in the present application, the first turnup bar 31 is located adjacent to the lock ring assembly 20 relative to the second turnup bar 32. By such an arrangement, when the driving device 33 drives the first turnup rod 31 to turn up, it can be ensured that the first turnup rod 31 can turn up at a relatively large angle, that is, the included angle between the first turnup rod 31 and the spindle assembly 10 can be increased, or the included angle between the first turnup rod 31 and the tire can be reduced, so that the axial component force generated by the first turnup rod 31 and the sidewall of the tire can be reduced, and the indentation of the sidewall at the section can be effectively reduced.

In one embodiment of the present application, the lock ring assembly 20 is disposed at a lengthwise centerline of the spindle assembly 10. Or the distance from the lock ring assembly 20 to both ends of the spindle assembly 10 in the longitudinal direction is the same.

As shown in fig. 2 to 4, the first turnup bar 31 has a first supporting position and a first retracted position, and when the first turnup bar 31 is at the first supporting position, an included angle between the first turnup bar 31 and the spindle assembly 10 is greater than or equal to 70 degrees and less than or equal to 90 degrees. And, the second turnup bar 32 has a second support position and a second retracted position, and when the second turnup bar 32 is in the second support position, the included angle between the second turnup bar 32 and the spindle assembly 10 is smaller than the included angle between the first turnup bar 31 and the spindle assembly 10. It should be noted that, in an embodiment of the present application, the driving device 33 drives the first turning rod 31 to move from the first retracted position to the first supporting position, and then the driving device 33 drives the second turning rod 32 to move from the second retracted position to the second supporting position, and thus the turning of the sidewall of the tire is completed.

In fig. 3 and 4, the tire is shown in phantom.

Specifically, the driving device 33 includes a first driving component 331 and a second driving component 332, the first driving component 331 is respectively connected to the plurality of first unpacking rods 31 in a driving manner, and the second driving component 332 is respectively connected to the plurality of second unpacking rods 32 in a driving manner. By such an arrangement, synchronous movement between the plurality of first turn-up rods 31 or the plurality of second turn-up rods 32 can be ensured, thereby ensuring the usability of the mechanical drum in the present application.

Moreover, when the first turning bar 31 is in the first supporting position and the second turning bar 32 is in the second supporting position, the second turning bar 32 needs to move before the first turning bar 31 when the first turning bar 31 needs to return to the first retracted position and the second turning bar 32 needs to return to the second retracted position.

It should be noted that the first driving assembly 331 and the second driving assembly 332 may be driving cylinders or servo driving motors in the present application.

In one embodiment of the present application, at least a portion of the second driving assembly 332 is capable of driving the second turn-up rod 32 to move along the axial direction of the spindle assembly 10, and the second driving assembly 332 is further capable of driving the second turn-up rod 32 to rotate around the second driving assembly 332. It should be noted that the main purpose of the second driving assembly 332 in the present application is to drive the second turn-up rod 32 to move through the second driving assembly 332 and enable the second turn-up rod 32 to turn up the sidewall of the tire. Therefore, in the present embodiment, when the second driving assembly 332 drives the second turn-up rod 32 to move along the circumferential direction of the spindle assembly 10, the end of the second turn-up rod 32 away from the second driving assembly 332 actually moves along the radial direction of the tire and completes the turn-up of the sidewall of the tire after abutting against the lock ring assembly 20 or the sidewall of the tire.

Therefore, in the present application, the driving manner of the second turnup rod 32 by the second driving unit 332, or the movement manner of the second turnup rod 32, is not limited to the above-described embodiment, and the second driving unit 332 may drive the second turnup rod 32 to generate movement in another form as long as the turnup of the tire sidewall can be realized.

Optionally, the robotic drum further includes two limiting plates 40, the two limiting plates 40 are in one-to-one correspondence with the two turn-up assemblies 30, the limiting plate 40 is disposed on one side of the second driving assembly 332 away from the lock ring assembly 20, and when the second turn-up rod 32 is in the second retraction position, the second turn-up rod 32 abuts against the limiting plate 40. Through setting up like this, can carry out spacingly through limiting plate 40 to the direction of motion or the rotatory reverse of second turn-up pole 32 to guarantee that second turn-up pole 32 moves along predetermined direction.

Optionally, the turn-up assembly 30 further comprises at least one first return element 50, the first return element 50 being connected to the driving means 33 and the plurality of first turn-up bars 31, respectively.

In an embodiment of the present application, the turn-up assembly 30 further includes a plurality of first resetting pieces 50, the plurality of first resetting pieces 50 correspond to the plurality of first turn-up rods 31 one by one, and two ends of the first resetting pieces 50 are respectively abutted to the first turn-up rods 31 and the driving device 33. In the present embodiment, when the first turnup bar 31 moves from the first retracted position to the first support position, the first restoring member 50 is pressed, and during the process of returning the first turnup bar 31 from the first support position to the first retracted position, the first restoring member 50 can provide a restoring force to the first turnup bar 31.

In another embodiment of the present application, the turn-up assembly 30 comprises a first return member 50, and this first return member 50 is connected to the different first turn-up bars 31, respectively, and to the drive means 33.

Optionally, the mechanical drum further comprises a plurality of second restoring members 60, the plurality of second restoring members 60 abutting the plurality of second turnup bars 32, respectively.

Specifically, a plurality of accommodating grooves are formed in the second anti-wrapping rod 32, the accommodating grooves correspond to the second resetting pieces 60 one by one, the second resetting pieces 60 are rubber rings, and each second resetting piece 60 is sleeved in the accommodating groove corresponding to each second anti-wrapping rod 32. In one embodiment of the present application, each second turn-up rod 32 is provided with three receiving grooves, and the number of the rubber rings is three. Since the plurality of second turn-up rods 32 are arranged along the circumferential direction of the spindle assembly 10 in the present application, each rubber ring can be sleeved on all the second turn-up rods 32, and when the second turn-up rods 32 move from the second retracted position to the second support position, the rubber ring is supported and the circumference becomes larger, so that when the second driving assembly 332 no longer acts on the second turn-up rods 32, the second turn-up rods 32 can move from the second support position to the second retracted position under the elastic force of the rubber ring.

Optionally, there is one second turn-up bar 32 between two adjacent first turn-up bars 31, and one first turn-up bar 31 between two adjacent second turn-up bars 32. That is to say, a plurality of first turn-up poles 31 and a plurality of second turn-up poles 32 are crisscross setting in this application, can guarantee effectively through setting up like this that tire side wall atress is more stable to guarantee the turn-up effect of mechanical drum.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

1. two-section type turn-up is realized by arranging two turn-up rods with different lengths;

2. simple structure and stable performance.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

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

Claims

1. The utility model provides a machinery drum, its characterized in that includes main shaft assembly (10) and overlaps respectively and establish lock ring subassembly (20) and anti package subassembly (30) on main shaft assembly (10), anti package subassembly (30) are two, two anti package subassembly (30) symmetry sets up the both sides of lock ring subassembly (20), anti package subassembly (30) include:

a plurality of first turn-up rods (31), wherein the first turn-up rods (31) are arranged at intervals around the circumference of the main shaft assembly (10);

the second turn-up rods (32) are arranged in a plurality of numbers, the second turn-up rods (32) are arranged at intervals around the circumference of the spindle assembly (10), the first turn-up rods (31) and the second turn-up rods (32) are arranged at intervals, and the length of the second turn-up rods (32) is greater than that of the first turn-up rods (31);

a driving device (33), wherein the driving device (33) is respectively connected with the first turn-up rod (31) and the second turn-up rod (32) in a driving manner so as to enable the first turn-up rod (31) and the second turn-up rod (32) to move relative to the spindle assembly (10).

2. Machine drum according to claim 1, characterized in that said first turnup bar (31) has a first support position and a first retracted position, the angle between said first turnup bar (31) and said spindle assembly (10) being greater than or equal to 70 degrees and less than or equal to 90 degrees when said first turnup bar (31) is in said first support position.

3. Machine drum according to claim 2, wherein the second turnup bar (32) has a second support position and a second retracted position, the angle between the second turnup bar (32) and the spindle assembly (10) being smaller than the angle between the first turnup bar (31) and the spindle assembly (10) when the second turnup bar (32) is in the second support position.

4. Mechanical drum, according to claim 1, characterized in that said driving means (33) comprise a first driving assembly (331) and a second driving assembly (332), said first driving assembly (331) being in driving connection with a plurality of said first turnup bars (31), respectively, and said second driving assembly (332) being in driving connection with a plurality of said second turnup bars (32), respectively.

5. Mechanical drum according to claim 4, wherein at least a portion of the second drive assembly (332) is able to bring the second turning bar (32) in axial movement along the spindle assembly (10), and the second drive assembly (332) is also able to drive the second turning bar (32) in rotation around the second drive assembly (332).

6. Mechanical drum according to claim 5, further comprising two stop plates (40), wherein two stop plates (40) are provided, and wherein two stop plates (40) are provided, one for each of the two turn-up assemblies (30), and wherein the stop plates (40) are provided on a side of the second drive assembly (332) remote from the lock ring assembly (20), and wherein the second turn-up bar (32) abuts against the stop plates (40) when the second turn-up bar (32) is in the second retracted position.

7. Mechanical drum, according to any one of claims 1 to 6, characterized in that said turn-up assembly (30) further comprises at least one first return member (50), said first return member (50) being connected to said drive means (33) and to a plurality of said first turn-up levers (31), respectively.

8. Mechanical drum according to any one of claims 1 to 6, further comprising a plurality of second return members (60), the plurality of second return members (60) being in abutment with the plurality of second turn-up bars (32), respectively.

9. The mechanical drum as claimed in claim 8, wherein a plurality of accommodating grooves are formed in the second anti-wrapping rod (32), the accommodating grooves correspond to the second restoring members (60) one by one, the second restoring members (60) are rubber rings, and each second restoring member (60) is sleeved in the accommodating groove corresponding to each second anti-wrapping rod (32).

10. Machine drum according to any one of claims 1 to 6, characterised in that between two adjacent first turning-up levers (31) there is one said second turning-up lever (32) and between two adjacent second turning-up levers (32) there is one said first turning-up lever (31).