阅读说明：本技术 一种分切机用收卷轴 (Winding shaft for splitting machine ) 是由 徐力 崔庆珑 于 2021-04-22 设计创作，主要内容包括：本发明公开了一种分切机用收卷轴,包括主轴、套设在主轴上的套筒、套设在套筒外的管芯,套筒有多节且沿主轴的轴心线方向间隔设置,套筒由内向外包括与主轴间隙配合的筒体、套设在筒体上的橡胶圈、设置在橡胶圈径向外侧部上的抵压件,橡胶圈具有中空的内腔,抵压件沿橡胶圈的圆周方向均匀间隔分布,橡胶圈上开设有用于向其内部充气的充气口,抵压件能够抵压在管芯的内侧壁上或脱离管芯,当橡胶圈向内充气时,抵压件抵压在管芯的内侧壁上；当橡胶圈向外排气时,抵压件脱离管芯,收卷轴还包括套设在主轴上的阻隔环。该收卷轴其结构简单,能够确保收卷过程中,管芯不会发生轴向侧移现象。(The invention discloses a winding shaft for a splitting machine, which comprises a main shaft, a sleeve sleeved on the main shaft and a tube core sleeved outside the sleeve, wherein the sleeve is provided with a plurality of sections and is arranged at intervals along the axial lead direction of the main shaft; when the rubber ring exhausts outwards, the pressing piece is separated from the tube core, and the winding shaft further comprises a blocking ring sleeved on the main shaft. The winding shaft is simple in structure, and the phenomenon that the tube core moves axially can be avoided in the winding process.)

1. A winding shaft for a splitting machine is characterized by comprising a main shaft, a sleeve sleeved on the main shaft and a tube core sleeved outside the sleeve, wherein the sleeve is provided with a plurality of sections and is arranged at intervals along the axial lead direction of the main shaft, the sleeve comprises a barrel body in clearance fit with the main shaft from inside to outside, a rubber ring sleeved on the barrel body and a pressing part arranged on the radial outer side part of the rubber ring, the rubber ring is provided with a hollow inner cavity, the pressing parts are uniformly distributed at intervals along the circumferential direction of the rubber ring, the rubber ring is provided with an inflation inlet used for inflating the rubber ring, the pressing part can be pressed on the inner side wall of the tube core or separated from the tube core, and when the rubber ring is inflated inwards, the pressing part is pressed on the inner side wall of the tube core; when the rubber ring exhausts outwards, the pressing piece is separated from the tube core, the winding shaft further comprises blocking rings sleeved on the main shaft, and the blocking rings comprise first blocking rings arranged at two axial ends of the main shaft and second blocking rings arranged between two adjacent sleeves.

2. The winding shaft for the slitter according to claim 1, wherein the pressing member is a sheet material covering a radially outer side portion of the rubber ring, and an inflation valve in airflow communication with an inflation port of the rubber ring is installed on the sheet material.

3. The winding shaft for the slitter according to claim 2, wherein the sheet is made of a nickel alloy material.

4. The winding shaft for the slitter according to claim 2, wherein the sheet has three sheets, and each sheet is an arc-shaped sheet with an arc of 120 °.

5. The winding shaft for the slitter according to claim 2, wherein each sheet is locked with the rubber ring by an in-line locking bolt.

6. The winding shaft for the slitter according to claim 5, wherein at least two locking bolts are provided on each of the sheets and the two locking bolts are installed on a same horizontal plane.

7. The winding shaft for a slitter according to claim 2, wherein an outer side surface of the sheet is a rough surface.

8. The winding shaft for the slitter according to claim 1, wherein a shaft sleeve is sleeved on an outer side portion of the rubber ring, a plurality of holes for mounting a pressing member are formed in the shaft sleeve, an inflation valve in airflow communication with an inflation port on the rubber ring is further mounted on the shaft sleeve, and the pressing member is a pressing block.

9. The winding shaft for the slitter according to claim 1, wherein the main shaft is made of a nickel-chromium alloy material.

Technical Field

The invention relates to the technical field of winding shafts, in particular to a winding shaft for a splitting machine.

Background

With the continuous development of protective film products, more and more companies have started to rise the high tide of protective film development. The coated cured product is typically packaged directly into the consumer's hands by slitting.

But after the second-quality product enters the slitting workshop, the qualification rate of the finished product is not very high, and a considerable part is caused by poor rolling of the slitting machine. Two types of winding shafts are commonly used at present, namely a slip shaft and an air expansion shaft. The slip shaft can well and synchronously roll products with the same width and different total thicknesses, and normal meters can be cut. But the defects are that the tube core is easy to move left and right, and the problem of uneven rolling caused by tube core displacement is easy to occur when the number of rolled meters is more. The tube core can be well fixed by the air expansion shaft, the tube core is not loosened any more, but when the tube core is used for products with the same width and different total thicknesses, the winding diameter with large thickness is larger than that with small thickness, namely, the winding diameter is 100m, when the product with large thickness is wound for 100m, the winding number of the product with small thickness nearby exceeds 100m, and the winding tension on the two sides is different, so that the loss of the product and the reject ratio are increased. How to solve the above technical problems is a matter that those skilled in the art are dedicated to solve.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a winding shaft for a splitting machine, which is simple in structure and can ensure that a tube core does not move axially in the winding process.

In order to achieve the purpose, the invention adopts the technical scheme that: a winding shaft for a splitting machine comprises a main shaft, a sleeve sleeved on the main shaft, and a tube core sleeved outside the sleeve, wherein the sleeve is provided with a plurality of sections and is arranged at intervals along the axial lead direction of the main shaft, the sleeve comprises a barrel body in clearance fit with the main shaft from inside to outside, a rubber ring sleeved on the barrel body, and a pressing part arranged on the radial outer side part of the rubber ring, the rubber ring is provided with a hollow inner cavity, the pressing parts are uniformly distributed at intervals along the circumferential direction of the rubber ring, the rubber ring is provided with an inflation inlet for inflating the rubber ring, the pressing part can press on the inner side wall of the tube core or separate from the tube core, and when the rubber ring inflates inwards, the pressing part presses on the inner side wall of the tube core; when the rubber ring exhausts outwards, the pressing piece is separated from the tube core, the winding shaft further comprises blocking rings sleeved on the main shaft, and the blocking rings comprise first blocking rings arranged at two axial ends of the main shaft and second blocking rings arranged between two adjacent sleeves.

As a specific implementation manner, the pressing part is a sheet material covering the radial outer side part of the rubber ring, and an inflation valve in airflow communication with an inflation port on the rubber ring is installed on the sheet material.

In a specific embodiment, the sheet is made of a nickel alloy material.

In a specific embodiment, the sheet material has three sheets, and each sheet material is an arc-shaped sheet material with an arc of 120 degrees.

As a specific embodiment, each sheet is locked with the rubber ring through an embedded locking bolt.

As a specific embodiment, at least two locking bolts are arranged on each sheet, and the two locking bolts are arranged on the same horizontal plane.

In a specific embodiment, the outer side of the sheet is a rough side.

As a specific implementation manner, a shaft sleeve is sleeved on the outer side of the rubber ring, a plurality of holes for mounting a pressing piece are formed in the shaft sleeve, an inflation valve in airflow communication with an inflation port on the rubber ring is further mounted on the shaft sleeve, and the pressing piece is a pressing block.

In a specific embodiment, the main shaft is made of a nickel-chromium alloy material.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the winding shaft for the splitting machine is characterized in that a plurality of sleeves are arranged between a main shaft and a tube core, each sleeve is composed of a barrel body, a rubber ring and a pressing part, the pressing parts are protruded outwards to press the inner side surfaces of the tube core through inflation in the rubber rings to play a role in fixing the tube core, the rubber rings on the sleeves can be inflated independently, each sleeve can support the tube core independently, the tube core is prevented from being deviated left and right, after the winding is finished, an inflation valve is loosened, the rubber rings and the pressing parts can be restored to the original positions, and the tube core can be taken out easily.

Drawings

FIG. 1 is a schematic structural view of a winding shaft for a slitter according to the present invention;

FIG. 2 is a schematic view showing the structure of a sleeve in embodiment 1;

FIG. 3 is a schematic view showing the structure of a sleeve in embodiment 2;

wherein: 1. a main shaft; 2. a sleeve; 21. a barrel; 22. a rubber ring; 23. a sheet material; 24. a shaft sleeve; 241. a hole; 25. briquetting; 26. an inflation valve; 27. locking the bolt; 3. a die; 4. a first barrier ring; 5. a second blocker ring.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the specific embodiments.

Example 1

A winding shaft for a splitting machine comprises a main shaft 1, a sleeve 2 sleeved on the main shaft 1 and a tube core 3 sleeved outside the sleeve 2, and is shown in figure 1. The sleeve 2 is provided with a plurality of sections and is arranged at intervals along the axial lead direction of the main shaft 1, the sleeve 2 comprises a cylinder body 21 in clearance fit with the main shaft 1 from inside to outside, a rubber ring 22 sleeved on the cylinder body 21 and a pressing part arranged on the radial outer side part of the rubber ring 22, the rubber ring 22 is provided with a hollow inner cavity, the pressing part is uniformly distributed at intervals along the circumferential direction of the rubber ring 22, an inflation inlet used for inflating the rubber ring is formed in the rubber ring, the pressing part can be pressed on the inner side wall of the tube core 3 or separated from the tube core 3, and when the rubber ring inflates inwards, the pressing part is pressed on the inner side wall of the tube core 3; when the rubber ring exhausts outwards, the pressing piece is separated from the tube core 3, the winding shaft further comprises blocking rings sleeved on the main shaft 1, and the blocking rings comprise first blocking rings 4 arranged at two axial ends of the main shaft 1 and second blocking rings 5 arranged between two adjacent sleeves 2.

Here, this sleeve 2 has included barrel 21, rubber circle 22 and holding part, when the rolling, connect inflation valve 26 through outside gas charging line and aerify in rubber circle 22, make the holding part that sets up on rubber circle 22 outside portion outwards bulge and compress tightly the inside wall of tube core 3, thereby ensure at the rolling in-process, tube core 3 can not take place the skew in the axial direction, adopt multisection sleeve 2 simultaneously, can be in 3 rolling in-process of tube core, each section sleeve 2 can both make tube core 3 fixed, can not take place not hard up phenomenon, can realize cutting the different products of the same thickness of width simultaneously, the meter number of guaranteeing that every volume is cut is unanimous.

Adopt the separation ring to make sleeve 2 stagger mutually for can wrap up the product of different thickness under the whole width on same root die 3, be located the effect that sleeve 2 can also be prescribed a limit to first separation ring 4 on the axial both ends of main shaft 1 in addition, take place the displacement in order to prevent sleeve 2 in the axial direction.

Specifically, in this example, the pressing member is a sheet 23 covering the radially outer portion of the rubber ring 22, and as shown in fig. 2, an inflation valve 26 is mounted on the sheet 23 and is in air flow communication with an inflation port of the rubber ring 22. Here, the sheet 23 is made of a nickel alloy material. The nickel alloy material is flexible, so that the sheet 23 can be attached to the tube core 3 in the process of abutting against the tube core. Here, the sheet 23 has three sheets, each sheet 23 is an arc sheet 23 with an arc of 120 °, each sheet 23 is locked with the rubber ring 22 by means of an in-line locking bolt 27, and at least two locking bolts 27 are arranged on each sheet 23, and two locking bolts 27 are arranged on the same horizontal plane. Through adopting three arc sheets 23 of which the radians are 120 degrees, the rubber ring can be uniformly expanded outwards in the inflating process, so that the sheets 23 are more attached to the tube core 3, the outer side surface of each sheet 23 can be set to be a rough surface, the friction force between the inner side walls of the sheets 23 and the tube core 3 is increased, and the tube core 3 is further ensured not to be deviated in the axial direction. Through setting up two embedded locking bolt 27 on same horizontal plane, can prevent that sheet 23 from being popped off when aerifing, the position that the bolt gos deep into the rubber circle is all the same, guarantees that the pipe core 3 atress is even when rubber circle 22 heaves.

In addition, when in inflation, in order to ensure simplicity, convenience and rapidness, after the tube core 3 is placed at a corresponding position, the inflation valves 26 of the sections where the tube cores 3 are located can be rotated to the same horizontal line, and then the air is inflated uniformly. After normal slitting, all shaft joints can rotate independently, and the rolling meters are the same while the shaft joints cannot move left and right.

In this example, the spindle 1 is made of a nickel-chromium alloy material. The main shaft 1 made of the material has higher precision.

Example 2

The difference between this embodiment and embodiment 1 is that a shaft sleeve 24 is disposed on the outer side of the rubber ring, as shown in fig. 3, a plurality of holes 241 for installing a pressing member are disposed on the shaft sleeve 24, an inflation valve 26 in airflow communication with an inflation port on the rubber ring 22 is further disposed on the shaft sleeve 24, and the pressing member is a pressing block 25 made of aluminum alloy material. When the rubber ring is inflated, the press piece 25 expands from inside the hole 241 outwards against the inner side wall of the tube core 3, where the hole 241 may be round or square. The holes 241 may be arranged in an array on the sleeve 24 to increase the contact area between the pressing member and the die 3.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.