CN219296777U - Rewinding device for production of foam sheets - Google Patents
Rewinding device for production of foam sheets Download PDFInfo
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- CN219296777U CN219296777U CN202320681521.2U CN202320681521U CN219296777U CN 219296777 U CN219296777 U CN 219296777U CN 202320681521 U CN202320681521 U CN 202320681521U CN 219296777 U CN219296777 U CN 219296777U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses a rewinding device for producing foam sheets, which comprises a counter-pressure traction roller arranged on a frame; one side of the opposite-pressing traction roller is provided with an unreeling roller, and the other side of the opposite-pressing traction roller is sequentially provided with a pressure passing roller, a first unreeling roller and a reeling roller; the two ends of the pressure passing roller are connected with constant-pressure air cylinders at the bottom, the constant-pressure air cylinders are arranged on the frame, and sheets on the unreeling roller can pass through the opposite-pressure traction roller and are pressed on the pressure passing roller, and meanwhile, the sheets are received on the reeling roller through the bottom of the first unfolding roller; or the other side of the opposite-pressing traction roller is sequentially provided with a second unfolding roller, a pressure passing roller, a first unfolding roller and a winding roller; the sheet on the unreeling roller can pass through the bottom of the opposite-pressing traction roller and the second unreeling roller and is pressed on the pressure passing roller, and meanwhile, the sheet is received on the reeling roller through the bottom of the first unreeling roller. The rewinding device is used for off-line repair operation of a normal production line, and can ensure normal winding of sheet production with smaller thickness and larger width.
Description
Technical Field
The utility model belongs to the technical field of foam sheet production equipment, and particularly relates to a rewinding device for foam sheet production.
Background
The polyolefin foam material needs to be stored into coiled materials during the production of finished products, the coiling is the last link of the whole production line, and the coiling device on the production line mainly comprises a counter-pressure traction roller 11 and a coiling roller 22 which are respectively controlled by a counter-pressure traction roller motor 33 and a coiling roller motor 44, so that the coiling of the coiled materials produced continuously is mainly ensured to be stable.
However, the foaming material has the problem of longitudinal stretching during rolling, the rolling tension is uncontrollable, the coiled material is loose during rolling, and gaps exist between sheets during subsequent slitting, so that the use of products is affected; and the uniformity of the transverse thickness of the sheet is poor, a folding phenomenon can occur during rolling, and the rolled coiled material can have a wavy appearance similar to a washboard. These phenomena are particularly serious when the sheet is produced with a thickness of less than 1mm and a width of more than 1200 mm.
The existing treatment mode is to manually adjust the speeds of a traction roller and a winding roller on a production line to control the abnormality of winding, and the method is time-consuming and labor-consuming and has poor effect; and because coiled materials on the production line are continuously wound, the coiled materials can be replaced after the abnormal sheet materials are broken, and unnecessary waste is caused.
To sum up, the existing winding device cannot meet the requirement of normal winding.
Disclosure of Invention
In order to meet one or more of the above defects or improvement demands of the prior art, the utility model provides a rewinding device for foam sheet production, which is used for off-line repair operation of a normal production line and can ensure normal winding of sheet production with smaller thickness and larger width.
In order to achieve the above object, according to one aspect of the present utility model, there is provided a rewinding device for foam sheet production, a counter-pressure traction roller provided on a frame;
one side of the opposite-pressing traction roller is provided with an unreeling roller, and the other side of the opposite-pressing traction roller is sequentially provided with a pressure passing roller, a first unreeling roller and a reeling roller;
the two ends of the pressure passing roller are connected with constant-pressure air cylinders at the bottom, the constant-pressure air cylinders are arranged on the frame, and sheets on the unreeling roller can pass through the opposite-pressure traction roller and are pressed on the pressure passing roller, and meanwhile, the sheets are received on the reeling roller through the bottom of the first unfolding roller;
the height of the top surface of the pressure roller is higher than the height of the section between the opposite pressure traction rollers.
As a further improvement of the present utility model, the roller diameter of the first unwinding roller gradually decreases from the middle to both ends.
According to another aspect of the present utility model, there is provided a rewinding device for foam sheet production, comprising a counter-pressure traction roller provided on a frame;
one side of the opposite-pressing traction roller is provided with an unreeling roller, and the other side of the opposite-pressing traction roller is sequentially provided with a second unreeling roller, a pressure passing roller, a first unreeling roller and a reeling roller;
the constant pressure cylinder is arranged on the frame, and the sheet on the unreeling roller can pass through the opposite-pressure traction roller and the bottom of the second unfolding roller and is pressed on the pressure roller, and meanwhile, the sheet is received on the wind-up roller through the bottom of the first unfolding roller.
As a further improvement of the utility model, the first unfolding roller and the second unfolding roller are symmetrically arranged at two sides of the pressure passing roller, namely, the cross sections of the first unfolding roller and the second unfolding roller are isosceles triangles taking the pressure passing roller as the vertex.
As a further improvement of the present utility model, the roller diameter of the first developing roller and/or the second developing roller gradually decreases from the middle to both ends.
As a further improvement of the utility model, the unreeling roller is arranged on the unreeling frame, and a magnetic powder controller is arranged on the unreeling frame corresponding to the end part of the unreeling roller.
As a further improvement of the utility model, a constant pressure cylinder is arranged between the pressure roller and the frame, the fixed end of the constant pressure cylinder is connected with the frame, and the piston end is connected with the end part of the pressure roller.
As a further improvement of the utility model, the opposite-pressing traction roller comprises a driving roller and a driven roller which are arranged in parallel up and down, the driving roller is fixedly connected with the frame and rotates around the frame through a bearing, the tops of the two ends of the driven roller are provided with corresponding air cylinders, and the driven roller and the driving roller are controlled to move relatively through the expansion and contraction of the air cylinders.
As a further improvement of the utility model, at least one end of the driving roller of the counter-pressure traction roller is connected with a counter-pressure traction roller motor corresponding to the end.
As a further improvement of the utility model, at least one end of the wind-up roll is connected with a wind-up roll motor corresponding to the end.
In general, the above technical solutions conceived by the present utility model have the following beneficial effects compared with the prior art:
(1) According to the rewinding device for producing the foam sheet, the sheet tension can be generated due to the winding speed and the material characteristics of the sheet, when the sheet passes through the pressure roller, the stress of the winding roller on the sheet is changed through the expansion and contraction of the piston of the constant-pressure cylinder, and the tension of the sheet during winding is further controlled. The utility model is used for the off-line repair operation of the normal production line, and the coiled material which is preliminarily coiled in the normal production line is coiled again by using the rewinding device, so that the normal coiling of the production of the sheet with smaller thickness and larger width can be ensured.
(2) According to the rewinding device for producing the foam sheet, symmetrical unwinding rollers can be arranged on two sides of the pressure passing roller, and the height of the pressure passing roller can be set to be higher than the height of a section between opposite pressure traction rollers, so that the pressure of the sheet is effectively transmitted to the pressure passing roller, and the tension of the sheet is dynamically adjusted.
(3) According to the rewinding device for producing the foam sheet, when the sheet passes through the unwinding roller, the conical roller is designed to stretch and flatten the sheet, and the winding wave appearance and the folding caused by poor uniformity of the transverse thickness can be avoided.
(4) According to the rewinding device for producing the foam sheets, under the action of the magnetic control controller at the end part of the unwinding roller, the rewinding device can provide winding force in the opposite direction for the unwinding frame, so that the sheets between the opposite-pressure traction roller and the unwinding frame are kept flat and are not piled up when the opposite-pressure traction roller rotates.
Drawings
FIG. 1 is a schematic diagram of a winding device on a sheet production line in the prior art;
FIG. 2 is a schematic drawing of a prior art sheet threading of a take-up device on a sheet production line;
FIG. 3 is a schematic view of an rewinding mechanism for foam sheet production according to an embodiment of the present utility model;
FIG. 4 is a schematic illustration of a rewind device for foam sheet production according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a rewind apparatus for foam sheet production according to another embodiment of the present utility model;
fig. 6 is a schematic view of a rewind apparatus for foam sheet production according to another embodiment of the present utility model.
Like reference numerals denote like technical features throughout the drawings, in particular: 1-double-pressure traction roller, 2-wind-up roller, 3-double-pressure traction roller motor, 4-wind-up roller motor, 5-unreeling roller, 6-magnetic powder controller, 7-pressure roller, 8-constant pressure cylinder, 9-first unfolding roller and 10-second unfolding roller.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, the technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; 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 specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In one embodiment shown in fig. 3 and 4, the rewinding device for producing foam sheets of the utility model comprises a counter-pressure traction roller 1 arranged on a frame, wherein one side of the counter-pressure traction roller 1 is provided with an unreeling roller 5, and the other side of the counter-pressure traction roller is provided with a pressure passing roller 7, a first unreeling roller 9 and a reeling roller 2 in sequence. The two ends of the pressure roller 7 are connected with constant pressure air cylinders 8 at the bottom, the constant pressure air cylinders 8 are arranged on the frame, and the sheet on the unreeling roller passes through the opposite pressure traction roller and is pressed on the pressure roller 7, and is received on the wind-up roller 2 through the bottom of the first unfolding roller 9.
In this embodiment, the coiled material wound on the normal production line is placed on the unwinding frame, and the sheet material sequentially passes through the opposite-pressure traction roller, the pressure passing roller and the first unwinding roller from the unwinding frame, and is wound into the coiled material on the winding roller.
The constant pressure cylinder 8 is arranged between the pressure roller 7 and the frame, the fixed end of the constant pressure cylinder is connected with the frame, and the piston end is connected with the end part of the pressure roller 7. When rewinding, firstly, different constant air pressures are set according to different sheets, in the rewinding process, the sheets can generate sheet tension due to the winding speed and the material characteristics of the sheets, and when the winding sheet tension is overlarge, the sheets press the pressure roller 7 to enable the piston end of the constant pressure cylinder to move downwards, so that the sheet tension is reduced; when the tension of the rolled sheet is too small, the piston end of the constant pressure cylinder moves upwards due to insufficient force of the pressing force of the sheet to the pressure roller 7, so that the tension of the sheet is increased, and the tension of the sheet is dynamically adjusted.
In this embodiment, the top surface of the pressure roller 7 is higher than the tangential surface between the opposite pressure traction rollers 1, so as to ensure that the sheet has a downward force when pressing against the pressure roller 7, and the pressure of the sheet is effectively transferred to the pressure roller.
Preferably, the roller diameter of the first deployment roller 9 gradually decreases from the middle to both ends. Coiled materials coiled on the production line can cause the problem of tight two ends and loose middle of the coiled materials because the motor is usually arranged at two ends of the opposite pressing roller or the winding roller. According to the utility model, through the design of the conical roller, the middle roller diameter of the unfolding roller contacted with the sheet is large, the roller diameter gradually becomes smaller towards two ends, and the gradual roller diameter spreads the sheet towards two ends, so that the sheet can be flattened, and winding abnormality caused by poor uniformity of transverse thickness and wide width of the sheet is repaired.
The rewinding device provided by the utility model has the advantages that the tension of the sheet is adjusted by the stretching of the constant-pressure air cylinder and the flattening of the sheet by the unwinding roller is continuously carried out in the whole rewinding operation, so that the tension of the sheet in the winding process is continuously ensured to be consistent and the sheet is flattened.
Preferably, the end part of the unreeling frame corresponding to the unreeling roller 5 is provided with a magnetic powder controller 6, the opposite-pressing traction roller rotates to drive the sheet to enter the unreeling roller, and under the action of the magnetic controller 6, a winding force in the opposite direction can be provided for the unreeling frame, so that the sheet between the opposite-pressing traction roller and the unreeling frame is kept flat and not piled up when the opposite-pressing traction roller rotates.
In addition, the control principle of the magnetic powder controller is the prior art, and is not described herein.
Preferably, at least one end of the driving roller of the counter-pressure traction roller 1 is connected with a counter-pressure traction roller motor 3 corresponding to the end, and at least one end of the winding roller 2 is connected with a winding roller motor 4 corresponding to the end.
The counter-pressure traction roller 1 specifically comprises a driving roller and a driven roller which are arranged in parallel up and down, in this embodiment, the driving roller is arranged below the driven roller, and at least one end of the driving roller is connected with a corresponding counter-pressure traction roller motor 3. The driving roller is fixedly connected with the frame, rotates around the driving roller through a bearing, and is provided with corresponding air cylinders at the tops of the two ends of the driven roller, and the driven roller and the driving roller are controlled to move relatively through the expansion and contraction of the air cylinders.
In another embodiment shown in fig. 5 and 6, the rewinding device for producing foam sheets of the present utility model comprises a counter-pressure traction roller 1 arranged on a frame, wherein one side of the counter-pressure traction roller 1 is provided with an unreeling roller 5, and the other side is sequentially provided with a second unreeling roller 10, a pressure roller 7, a first unreeling roller 9 and a winding roller 2. The two ends of the pressure roller 7 are connected with constant pressure air cylinders 8 at the bottom, the constant pressure air cylinders 8 are arranged on the frame, and the sheet on the unreeling roller passes through the bottoms of the counter-pressure traction roller and the second unreeling roller 10 and is pressed on the pressure roller 7, and is simultaneously received on the wind-up roller 2 through the bottom of the first unreeling roller 9.
In this embodiment, the coiled material wound on the normal production line is placed on the unwinding frame, and the sheet material sequentially passes through the counter-pressure traction roller, the second unwinding roller, the pressure passing roller and the first unwinding roller from the unwinding frame, and is wound into the coiled material at the winding roller.
Preferably, the first spreading roller 9 and the second spreading roller 10 are symmetrically arranged at both sides of the pressure roller 7, i.e. the cross sections of the three are isosceles triangles taking the pressure roller 7 as the vertex. Through the arrangement, the embodiment can ensure that the acting force of the sheet to the pressure roller and the tension control direction of the pressure roller to the sheet are always perpendicular to the contact section of the sheet and the pressure roller, so that the pressure of the sheet is effectively transmitted to the pressure roller. In the present embodiment, the height of the pressure roller 7 is not limited.
Preferably, the roller diameter of the first spreader roller 9 and/or the second spreader roller 10 gradually decreases from the middle to both ends.
In addition, other structures and principles of the counter-pressure traction roller 1, the wind-up roller 2, the unreeling roller 5, the magnetic powder controller 6, the pressure passing roller 7, the constant pressure cylinder 8, the first unwinding roller 9, the second unwinding roller 10, and the like are the same as those of the embodiment shown in fig. 3 and 4, and will not be described again here.
The rewinding device for producing the foam sheets is used for the offline repair operation of a normal production line, and the rewinding device is utilized to rewind coiled materials which are preliminarily wound on the normal production line, so that the normal winding of the production of the sheets with smaller thickness and larger width can be ensured, and the machine can be stopped and corrected in time when the rewinding is abnormal. Through the repair operation of rewinding device, the frequent cutting and roll changing during continuous production on the production line in the past are avoided simultaneously, the manual repeated adjustment on the production line is avoided, the time and the labor are saved, and the degree of automation is improved.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the utility model and is not intended to limit the utility model, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. The rewinding device for producing the foam sheet is characterized by comprising a counter-pressure traction roller (1) arranged on a frame;
one side of the counter-pressure traction roller (1) is provided with an unreeling roller (5), and the other side of the counter-pressure traction roller is sequentially provided with a pressure passing roller (7), a first unreeling roller (9) and a reeling roller (2);
the two ends of the pressure passing roller (7) are connected with constant-pressure air cylinders (8) at the bottom, the constant-pressure air cylinders (8) are arranged on the frame, and sheets on the unreeling roller can pass through the opposite-pressure traction roller and are pressed on the pressure passing roller (7) and are received on the reeling roller (2) through the bottom of the first unfolding roller (9);
the top surface of the pressure roller (7) is higher than the section height between the opposite pressure traction rollers (1).
2. Rewinding device for the production of foam sheets according to claim 1, characterized in that the roller diameter of the first unwind roller (9) decreases gradually from the middle to the two ends.
3. The rewinding device for producing the foam sheet is characterized by comprising a counter-pressure traction roller (1) arranged on a frame;
one side of the counter-pressure traction roller (1) is provided with an unreeling roller (5), and the other side of the counter-pressure traction roller is sequentially provided with a second unreeling roller (10), a pressure passing roller (7), a first unreeling roller (9) and a reeling roller (2);
the two ends of the pressure passing roller (7) are connected with constant pressure cylinders (8) at the bottom, the constant pressure cylinders (8) are arranged on the frame, and sheets on the unreeling roller can pass through the bottoms of the opposite-pressure traction roller and the second unfolding roller (10) and are pressed on the pressure passing roller (7), and meanwhile pass through the bottom of the first unfolding roller (9) and are received on the winding roller (2).
4. A rewinding device for foam sheet production according to claim 3, characterized in that the first unwind roller (9) and the second unwind roller (10) are symmetrically arranged on both sides of the pressure roller (7), i.e. the cross-section of the three is isosceles triangle with the pressure roller as vertex.
5. A rewinding device for foam sheet production as claimed in claim 3, characterized in that the roll diameter of the first unwind roll (9) and/or the second unwind roll (10) decreases gradually from the middle to both ends.
6. Rewinding device for the production of foam sheets according to any one of claims 1-5, characterized in that the unwinding roller (5) is arranged on an unwinding frame, and that a magnetic powder controller (6) is arranged on the unwinding frame in correspondence of the end of the unwinding roller (5).
7. Rewinding device for the production of foam sheets according to any one of claims 1-5, characterized in that the fixed end of the constant pressure cylinder (8) is connected to the frame and the piston end is connected to the end of the pressure roller (7).
8. The rewinding device for foam sheet production according to any one of claims 1 to 5, characterized in that the counter-pressure traction roller (1) comprises a driving roller and a driven roller which are arranged in parallel up and down, the driving roller is fixedly connected with the frame and rotates around the frame through a bearing, the tops of the two ends of the driven roller are provided with corresponding air cylinders, and the driven roller and the driving roller are controlled to move relatively through the extension and contraction of the air cylinders.
9. Rewinding device for the production of foam sheets according to claim 8, characterized in that at least one end of the drive roll of the counter-pressure traction roll (1) is connected to the counter-pressure traction roll motor (3) corresponding to that end.
10. Rewinding device for the production of foam sheets according to any one of claims 1-5 or 9, characterized in that at least one end of the wind-up roll (2) is connected to the wind-up roll motor (4) corresponding to that end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320681521.2U CN219296777U (en) | 2023-03-30 | 2023-03-30 | Rewinding device for production of foam sheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320681521.2U CN219296777U (en) | 2023-03-30 | 2023-03-30 | Rewinding device for production of foam sheets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219296777U true CN219296777U (en) | 2023-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320681521.2U Active CN219296777U (en) | 2023-03-30 | 2023-03-30 | Rewinding device for production of foam sheets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219296777U (en) |
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2023
- 2023-03-30 CN CN202320681521.2U patent/CN219296777U/en active Active
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