CN220720021U

CN220720021U - Cooling roller and rewinder

Info

Publication number: CN220720021U
Application number: CN202322239136.5U
Authority: CN
Inventors: 臧世伟
Original assignee: Shenzhen Jinmei New Material Technology Co ltd
Current assignee: Shenzhen Jinmei New Material Technology Co ltd
Priority date: 2023-08-18
Filing date: 2023-08-18
Publication date: 2024-04-05
Anticipated expiration: 2033-08-18

Abstract

The utility model relates to a cooling roller, which comprises a roller body and supporting heads arranged on two sides of the roller body, wherein the peripheral surface of the roller body is provided with a plurality of through holes, the inside of the roller body is hollow, and a plurality of separation mechanisms are arranged in the roller body along the length direction of the roller body so as to divide a roller cavity into a plurality of ventilation chambers, and each ventilation chamber corresponds to a plurality of through holes; one side of the support head is provided with an air exhaust pipeline for extracting gas and heat in the ventilation cavity. According to the cooling roller disclosed by the utility model, the inside of the roller body is divided into a plurality of ventilation chambers through the separation mechanism in the roller body, and each ventilation chamber can rapidly absorb hot air and pump out through the arrangement of the through holes, so that the cooling roller can uniformly cool a film and can ensure the temperature uniformity in the width direction of the film.

Description

Cooling roller and rewinder

Technical Field

The utility model relates to the technical field of cooling rollers, in particular to a cooling roller and a rewinder.

Background

In rewinders, the handling of the film is very important. First, the film is corona treated by a corona mechanism and then passed over a pass roller. The purpose of the corona treatment is to improve the surface properties of the film and to enhance its adhesion. However, since the corona treatment causes the film to rise in temperature, an air suction mechanism is provided beside the over-roller for drawing hot air to lower the temperature of the film.

The air extraction mechanism functions to cool the film by exhausting the hot air. However, recent experiments have found that the cooling effect of the air suction mechanism beside the roller on the film is not ideal, especially in the width direction of the film, the cooling is not uniform. This raises concerns and concerns for the staff as the temperature uniformity of the film has a significant impact on the product quality.

Disclosure of Invention

In order to solve the problem that the existing rewinder adopts an air suction mechanism to pump and exhaust hot air around a passing roller, the cooling effect on a film is not ideal, and particularly the cooling is uneven in the width direction of the film, the utility model provides a cooling roller and the rewinder.

The technical scheme of the utility model is as follows:

the cooling roller comprises a roller body and supporting heads arranged on two sides of the roller body, wherein the peripheral surface of the roller body is provided with a plurality of through holes, the inside of the roller body is hollow, and a plurality of separation mechanisms are arranged in the roller body along the length direction of the roller body so as to divide a roller cavity into a plurality of ventilation chambers, and each ventilation chamber corresponds to a plurality of through holes; one side of the support head is provided with an air exhaust pipeline for extracting gas and heat in the ventilation cavity.

According to the utility model of the scheme, the separation mechanism comprises the vertical ring piece and the transverse sleeve, the vertical ring piece is provided with the hollow hole, the length directions of the transverse sleeve and the cooling roller are consistent, one end of the transverse sleeve is connected with the hollow hole, and the other end of the transverse sleeve is communicated with the air exhaust pipeline.

Further, the vertical ring piece is fixed on the inner side wall of the roller body.

Further, the vertical ring piece and the transverse sleeve are integrally formed, and a horn-shaped separation mechanism is formed, and the horn mouth of the separation mechanism faces to one side far away from the air exhaust pipeline.

According to the utility model of the scheme, the roller body comprises a roller, a side plate and an annular supporting frame, wherein the side plate is arranged at one end of the roller and is in closed connection; the annular supporting frame is arranged at the other end of the roller and is positioned inside the roller, and the ventilation cavity is communicated with the air exhaust pipeline through a central annular opening of the annular supporting frame.

Further, a first bearing is arranged between the roller and the supporting head close to the air exhaust pipeline, and the roller is rotationally connected with the supporting head through the first bearing.

Further, the first bearing is a sealed bearing; and/or the periphery of the annular supporting frame is in sealing connection with the inner wall of the roller.

Further, the transverse sleeve of the partition mechanism extends to the central annular mouth of the annular support frame.

Further, the plurality of transverse sleeves are internally sleeved and embedded, and the cross sections of the plurality of transverse sleeves are in a plurality of concentric circles.

Further, a plurality of support rods are arranged at the central ring opening of the annular support frame, and one end, far away from the vertical ring piece, of the transverse sleeve is fixed on the support rods.

According to the utility model of the scheme, the air exhaust pipeline is arranged at the central ring opening of the annular supporting frame; or the air exhaust pipeline is arranged at the outer port of the supporting head, and the supporting head is tubular.

According to the utility model of the scheme, a plurality of separation mechanisms are arranged in the roller body at equal intervals.

According to the utility model of the scheme, the second bearing is arranged on the roller body and is far away from the supporting head sleeve of the air exhaust pipeline, and the supporting head on the side is rotationally connected with the frame of the rewinder through the second bearing.

Further, a driving motor is arranged on the supporting head connected with the second bearing.

The utility model also provides a rewinding machine, which comprises a corona mechanism and the cooling roller according to the scheme, wherein the cooling roller is used for sucking heat of the film in the width direction of the film.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the cooling roller is arranged in the rewinder equipment to cool the film, the interior of the roller body is divided into a plurality of independent ventilation chambers by utilizing a plurality of separation mechanisms, each ventilation chamber is directly communicated with the air exhaust pipeline, the side wall of the roller body section where each ventilation chamber is positioned is provided with the through hole, so that the effect of absorbing hot air by each small section of roller body can be realized, when the air exhaust mechanism operates, the peripheral surface of the roller body of the cooling roller uniformly absorbs the hot air in the width direction of the film, the uniform cooling of the film by the cooling roller is realized, heat at each position in the width direction of the film can be rapidly pumped out, and the temperature uniformity in the width direction of the film is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a first embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of an annular support frame according to an alternative embodiment;

FIG. 3 is a schematic cross-sectional view of several separation mechanisms on one side of the vent pipe;

fig. 4 is a schematic structural diagram of a second embodiment of the present utility model.

In the drawing of the figure,

1. a roller body; 11. a side plate; 12. a roller; 121. a through hole; 13. an annular support frame; 131. a support rod;

2. a support head; 21. a first support head; 22. a second support head;

3. a partition mechanism; 31. vertically changing the sheets; 32. a transverse sleeve;

4. a vent chamber;

5. a first bearing.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, it is stated that the embodiments described below are only for explaining the present utility model and are not intended to limit the present utility model.

It should be noted that, the terms "disposed," "connected," "fixed," and the like should be understood in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "a number" is one or more than one unless specifically defined otherwise.

Example 1

Referring to fig. 1, a cooling roller includes a roller body 1 and supporting heads 2 disposed on two sides of the roller body 1, wherein a plurality of through holes are formed on a circumferential surface of the roller body 1, the roller body 1 is hollow, and a plurality of separating mechanisms 3 are disposed along a length direction of the roller body 1 and are arranged inside the roller body to divide a roller cavity into a plurality of ventilation chambers 4, and each ventilation chamber 4 corresponds to a plurality of through holes 121 (note that only one through hole is drawn on a roller wall of each ventilation chamber in fig. 1 for illustration, and not for representing only one through hole). Wherein one side of the support head 2 is provided with an air extraction duct (not shown in the figures, the same applies below) for extracting the air and heat from the inside of the ventilation chamber 4.

The n dividing mechanisms 3 inside the roller body 1 divide the inside of the roller body 1 into n+1 ventilation chambers 4, for example, 4 dividing mechanisms 3 are provided in this embodiment, and 5 ventilation chambers 4 along the length direction of the roller body 1 are divided inside the roller body 1.

The implementation principle of the embodiment is as follows:

the inside of a plurality of separating mechanism 3 with roll body 1 is cut apart into the independent cavity 4 of ventilating of a plurality of, and each cavity 4 of ventilating all directly communicates with the pipeline of bleeding, the lateral wall of the roll body 1 section that every cavity 4 of ventilating is located all has through-hole 121, can realize that each minor segment roll body 1 all possesses the effect of absorbing hot air, when the mechanism of bleeding operation, the roll body 1 global of chill roll evenly absorbs hot air in film width direction, realizes that the chill roll cools down to the film evenly, and the heat of each department in the film width direction all can be taken out the row fast, ensures the temperature homogeneity in the film width direction.

In the embodiment, the roller body 1 comprises a roller 12, a side plate 11 and an annular supporting frame 13, wherein the side plate 11 is fixedly and closely connected with one end of the roller 12; the annular supporting frame 13 is arranged at the other end of the roller 12 and is positioned inside the roller 12, and the ventilation cavity 4 is communicated with the air exhaust pipeline through a central annular opening of the annular supporting frame 13. During air extraction, air on the peripheral surface of the roller body 1 enters the ventilation cavity 4 through the through holes 121 and then enters the air extraction pipeline through the central annular opening of the annular supporting frame 13.

In this embodiment, the first supporting head 21 on the right side of the roller body 1 is provided with an air suction pipe, and the first bearing 5 is provided between the roller 12 and the first supporting head 21 on the right side, so that the roller body 1 can rotate relative to the first supporting head 21 on the right side. The second supporting head 21 on the left side of the roller body 1 is provided with a second bearing (not shown in the figure, the same applies hereinafter), and the head ends of the two supporting heads 2 are both rotatably arranged on the frame of the rewinder. And the second support head 22 on the left side may be provided with a driving motor, and the cooling roller is actively rotated by using the driving motor to be used as a driving roller.

In this embodiment, the side plate 11 on the left side of the roller 12 is in close connection with the roller 12, so that the left side of the roller 12 is sealed, and only the through hole 121 on the roller 12 is in gas communication with the air suction pipeline on the right side of the roller 12. The annular supporting frame 13 on the right side of the roller 12 is connected with the inside of the roller 12, and an insertion space is reserved at the right end part of the roller 12 so that the first supporting head 21 on the right side is inserted, and the first bearing 5 is arranged between the first supporting head 21 on the right side and the roller 12, so that smooth relative rotation between the roller 12 and the first supporting head 21 on the right side is realized.

In this embodiment, the separation mechanism 3 includes a vertical ring piece 31 and a horizontal sleeve 32, the vertical ring piece 31 is fixed on the inner side wall of the roller 12, the vertical ring piece 31 is provided with a hollow hole, the length direction of the horizontal sleeve 32 is consistent with that of the cooling roller, one end of the horizontal sleeve 32 is connected with the hollow hole of the vertical ring piece 31, and the other end is communicated with the air exhaust pipeline.

The middle transverse sleeve 32 of the partition means 3 extends to the central annular mouth of the annular bracing frame 13. The transverse sleeves 32 of the 4 separation mechanisms 3 are sleeved and embedded, and the transverse sleeve 32 with the largest caliber is shortest in length and is arranged on one side closest to the air exhaust pipeline; the second largest-caliber transverse sleeve 32 is inserted into the largest-caliber transverse sleeve 32, and is sequentially sleeved and embedded, the ports of the transverse sleeves 32 are flush, and the cross sections of the transverse sleeves 32 are concentric circles, see fig. 3.

In order to further improve the uniformity of hot air extracted by the cooling roller, a plurality of separating mechanisms 3 are arranged in the roller body 1 at equal intervals.

In an alternative embodiment, the central ring opening of the annular supporting frame 13 is provided with a plurality of supporting rods 131, and one ends of the transverse sleeves 32 of the plurality of separating mechanisms 3, which are far away from the vertical ring sheets, are fixed on the supporting rods 131 so as to improve the connection firmness of the plurality of separating mechanisms 3 in the roller body 1, as shown in fig. 2.

Example two

Referring to fig. 4, a cooling roller includes a roller body 1 and supporting heads 2 disposed at two sides of the roller body 1, the roller body 1 is hollow, a plurality of separating mechanisms 3 are disposed in the roller body 1, and the other structures are the same as those of the first embodiment, and the difference is that: the vertical ring piece 31 and the transverse sleeve 32 are integrally formed to form a horn-shaped separation mechanism, the horn mouth of the separation mechanism faces to one side far away from the air extraction pipeline, the separation mechanism 3 does not have a right angle, the air flow is smoother during air extraction, and the cooling effect of the cooling roller is improved.

In the present utility model, the air extraction pipe (not shown) may be provided in two ways, one is provided at the central annular opening (i.e., a) of the annular supporting frame 13, the other is provided at the outer port (i.e., b) of the right first supporting head 21, and the right first supporting head 21 is tubular, and is used as a ventilation pipe capable of passing air flow.

During air suction, the ventilation chamber 4 is sealed except the through hole 121 and the air suction opening as much as possible at other places of the roller body 1, and in order to improve the sealing effect, at least one of the inner side surface (i.e. the position c) of the annular supporting frame 13 and the outer side surface (i.e. the position d) of the first bearing 5 needs to be provided with the sealing effect. Specifically, the first bearing 5 is a sealed bearing, so that a good sealing effect at the position d can be ensured; the periphery of the annular supporting frame 13 is in sealing connection with the inner wall of the roller 12, so that a good sealing effect at the position c can be ensured.

The utility model also provides a rewinding machine, which comprises the corona mechanism and further comprises the cooling roller in the scheme, wherein the cooling roller is arranged at the rear end of the corona mechanism, the film passes through the cooling roller, and the cooling roller can suck heat on the film subjected to corona treatment so as to cool the film.

It should be noted that, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that is conventionally put when the product of the application is used, or the orientation or positional relationship that is conventionally understood by those skilled in the art, or the orientation or positional relationship that is conventionally put when the product of the application is used, which is merely for convenience of describing the application and simplifying the description, and is not indicative or implying that the device or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the application.

It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.

While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the implementation of the utility model is not limited by the above manner, and it is within the scope of the utility model to apply the inventive concept and technical solution to other situations as long as various improvements made by the inventive concept and technical solution are adopted, or without any improvement.

Claims

1. The cooling roller comprises a roller body and supporting heads arranged on two sides of the roller body, and is characterized in that a plurality of through holes are formed in the peripheral surface of the roller body, the roller body is hollow, a plurality of spaced separation mechanisms are arranged in the roller body along the length direction of the roller body so as to divide a roller cavity into a plurality of ventilation chambers, and each ventilation chamber corresponds to a plurality of through holes; one side of the support head is provided with an air exhaust pipeline for extracting gas and heat in the ventilation cavity.

2. The cooling roller according to claim 1, wherein the separation mechanism comprises a vertical ring piece and a transverse sleeve, the vertical ring piece is provided with a hollow hole, the length directions of the transverse sleeve and the cooling roller are consistent, one end of the transverse sleeve is connected with the hollow hole, and the other end of the transverse sleeve is communicated with the air exhaust pipeline.

3. The chill roll of claim 2 wherein the vertical ring segments are secured to the inner sidewall of the roll body.

4. A chill roll according to claim 2 or 3, wherein the vertical ring segments and the transverse sleeve are integrally formed and form a trumpet-shaped partition, the trumpet opening of which faces away from the suction duct.

5. The cooling roller according to claim 1 or 2, wherein the roller body comprises a roller cylinder, a side plate and an annular supporting frame, and the side plate is arranged at one end of the roller cylinder and is in closed connection; the annular supporting frame is arranged at the other end of the roller and is positioned inside the roller, and the ventilation cavity is communicated with the air exhaust pipeline through a central annular opening of the annular supporting frame.

6. The cooling roll according to claim 5, wherein a first bearing is provided between the roll and a support head adjacent to the suction line, the roll being rotatably connected to the support head by the first bearing.

7. The chill roll of claim 5, wherein the transverse sleeve of the divider mechanism extends to a central ring opening of the annular support frame.

8. The cooling roll as recited in claim 7, wherein a plurality of said transverse sleeves are nested in an inner sleeve and a plurality of transverse sleeves have concentric circles in cross section.

9. The cooling roller according to claim 7 or 8, wherein a plurality of support rods are arranged at the central ring opening of the annular support frame, and one end, far away from the vertical ring piece, of the transverse sleeve is fixed on the support rods.

10. A rewinding machine comprising a corona mechanism, characterized by further comprising a cooling roller as claimed in any one of claims 1 to 9 for sucking heat of the film in the film width direction.