Sheet cooling device and sheet production line

Abstract

The utility model belongs to the technical field of sheet cooling, and particularly relates to a sheet cooling device and a sheet production line, the sheet cooling device comprises a liquid spraying unit, a liquid removing unit and a plurality of cooling rollers, the plurality of cooling rollers are arranged at intervals along the conveying direction of sheets; the liquid spraying unit comprises liquid spraying rollers and liquid spraying assemblies, the liquid spraying rollers are arranged between every two adjacent cooling rollers, and the liquid spraying assemblies are arranged between the liquid spraying rollers and the cooling rollers and used for spraying cooling liquid to the sheets; the liquid removing unit is arranged on the downstream of the liquid spraying unit in the conveying direction and comprises liquid removing rollers and liquid removing assemblies, the liquid removing rollers are arranged between every two adjacent cooling rollers, and the liquid removing assemblies are arranged between the liquid removing rollers and the cooling rollers and used for removing cooling liquid on the sheets. According to the sheet cooling device, the sheet cooling device comprises the multiple cooling rollers, the liquid spraying units are arranged among the multiple cooling rollers to spray the cooling liquid to the surface of the sheet, and therefore water cooling is conducted on the sheet, and the cooling efficiency of the sheet cooling device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sheet material cooling, and in particular relates to a sheet material cooling device and a sheet material production line. Background Art

[0002] The production process of polymer sheets requires processes such as high-temperature fusion of raw materials, die extrusion molding, sheet cooling and shaping, sheet cutting and winding, etc. In the sheet cooling and shaping process, a sheet cooling device is used to cool and shape the sheet.

[0003] In the prior art, the sheet cooling device includes a plurality of cooling rollers, through which the sheet is brought into contact with the peripheral wall of the cooling rollers, thereby achieving cooling and shaping. With respect to the above-mentioned related technologies, there is a technical problem of low sheet cooling efficiency due to the weak cooling effect of the cooling rollers. Utility Model Content

[0004] The main purpose of the utility model is to provide a sheet material cooling device and a sheet material production line, aiming to solve the technical problem of low sheet material cooling efficiency in the prior art.

[0005] In order to achieve the above-mentioned object, the utility model provides a sheet cooling device in a first aspect, comprising:

[0006] A plurality of cooling rollers are arranged at intervals along the conveying direction of the sheet;

[0007] a liquid spraying unit, comprising a liquid spraying roller and a liquid spraying assembly, wherein the liquid spraying roller is arranged between two adjacent cooling rollers and is arranged vertically staggered with the cooling rollers, and the liquid spraying assembly is arranged between the liquid spraying roller and the cooling roller and is used to spray cooling liquid to the sheet; and

[0008] A dehydration unit is arranged downstream of the liquid spraying unit along the conveying direction, and the dehydration unit includes a dehydration roller and a dehydration assembly. The dehydration roller is arranged between two adjacent cooling rollers and is vertically staggered with the cooling roller. The dehydration assembly is arranged between the dehydration roller and the cooling roller and is used to remove cooling liquid on the sheet.

[0009] In some embodiments, the liquid spray assembly includes a front liquid spray component and a back liquid spray component, the liquid spray roller and the two adjacent cooling rollers are arranged in a triangle and define a first triangular area, one of the front liquid spray component and the back liquid spray component is located in the first triangular area, and the other is located outside the first triangular area.

[0010] In some embodiments, the front liquid spraying element and the back liquid spraying element are arranged on both sides of the liquid spraying roller along the conveying direction.

[0011] In some embodiments, the front liquid spraying member and the back liquid spraying member are both water spraying machines, and the water spraying holes of the water spraying machines are facing the sheet material.

[0012] In some embodiments, the liquid removal assembly includes a front liquid removal component and a back liquid removal component, the liquid removal roller and the two adjacent cooling rollers are arranged in a triangle and define a second triangular area, one of the front liquid removal component and the back liquid removal component is located in the second triangular area, and the other is located outside the second triangular area.

[0013] In some embodiments, the front liquid removal member and the back liquid removal member are disposed on both sides of the liquid removal roller along the conveying direction.

[0014] In some embodiments, the front liquid removal component and the back liquid removal component are both water blowing fans, and the distance between the liquid removal roller and the adjacent cooling roller is greater than the distance between two adjacent cooling rollers.

[0015] In some embodiments, the vertical heights of the plurality of cooling rollers are equal, and the vertical heights of the liquid spraying roller and the liquid removal roller are both greater than the vertical height of the cooling roller.

[0016] A second aspect of the utility model provides a sheet production line, comprising the sheet cooling device as described above.

[0017] In some embodiments, the sheet production line includes three forming rollers and a cutting knife arranged at intervals along the conveying direction, and the sheet cooling device is located between the three forming rollers and the cutting knife.

[0018] Through the above technical solution, the sheet cooling device and sheet production line provided by the embodiment of the utility model have the following beneficial effects:

[0019] After the sheet is extruded through the die head, the sheet is formed. The sheet is cooled and shaped by the peripheral wall of the cooling roller in contact with the surface of the sheet. The sheet is then transported to the sheet cutting and winding process along the conveying direction by the rotation of multiple cooling rollers. In the present application, a liquid spraying assembly is provided to spray cooling liquid to the sheet to cool the sheet by water, thereby improving the cooling efficiency of the sheet cooling device; and a liquid removal assembly is provided downstream of the water spraying assembly along the conveying direction to remove the residual cooling liquid on the sheet, thereby preventing the cooling liquid from affecting the forming quality of the sheet.

[0020] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide an understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0022] Figure 1 It is a structural schematic diagram of a sheet material cooling device according to an embodiment of the utility model;

[0023] Figure 2 It is a structural schematic diagram of a sheet production line according to one embodiment of the utility model.

[0024] Description of Reference Numerals

[0025] Label name Label name 100 Sheet production line 101 Mixer 102 Hot Melt Extruder 103 Extrusion die head 104 Three-roll forming 105 Sheet cooling device 106 Cutting knife 107 Sheet Winder 1 Cooling roller 2 Spray roller 3 Front spray parts 4 Rear spray parts 5 Liquid removal roller 6 Front liquid removal parts 7 Reverse liquid removal parts DETAILED DESCRIPTION

[0026] The specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0027] The following describes the noun part of the sheet material cooling device 105 and the sheet material production line 100 according to the present invention with reference to the accompanying drawings.

[0028] like Figure 1 to Figure 2 As shown, in a specific embodiment of the utility model, a sheet cooling device 105 is provided, including a liquid spraying unit, a liquid removal unit and a plurality of cooling rollers 1, wherein the plurality of cooling rollers 1 are arranged at intervals along the conveying direction of the sheet; the liquid spraying unit includes a liquid spraying roller 2 and a liquid spraying assembly, the liquid spraying roller 2 is arranged between two adjacent cooling rollers 1 and is arranged vertically staggered with the cooling roller 1, the liquid spraying assembly is arranged between the liquid spraying roller 2 and the cooling roller 1 and is used to spray cooling liquid onto the sheet; the liquid removal unit is arranged downstream of the liquid spraying unit along the conveying direction, the liquid removal unit includes a liquid removal roller 5 and a liquid removal assembly, the liquid removal roller 5 is arranged between two adjacent cooling rollers 1 and is arranged vertically staggered with the cooling roller 1, the liquid removal assembly is arranged between the liquid removal roller 5 and the cooling roller 1 and is used to remove cooling liquid on the sheet.

[0029] In the cooling and shaping process of the sheet, a sheet cooling device 105 is provided to cool the sheet after extrusion molding by the die head, thereby completing the shaping of the sheet. In the present application, the sheet cooling device 105 includes a plurality of cooling rollers 1, and a liquid spraying unit is provided between the plurality of cooling rollers 1 to spray cooling liquid onto the surface of the sheet, thereby water-cooling the sheet, thereby improving the cooling efficiency of the sheet cooling device 105.

[0030] It should be noted that the conveying direction of the sheet is the sequence of the sheet production process, that is, the sequence from high-temperature fusion of the raw materials to extrusion molding at the die head, to cooling and shaping of the sheet, and finally to cutting and winding of the sheet.

[0031] Specifically, the liquid spraying roller 2, the liquid removal roller 5 and a plurality of cooling rollers 1 are arranged at intervals along the conveying direction. The cooling roller 1, the liquid spraying roller 2 and the liquid removal roller 5 each include a supporting portion and a roller shaft portion arranged at the top end of the supporting portion. The sheet passes through the top and bottom ends of each roller shaft portion alternately in the conveying direction and the surface of the sheet is in contact with the peripheral wall of the roller shaft portion. In the process of the sheet moving along the conveying direction, the peripheral wall is brought into contact with the surface of the sheet through the self-rotation of the roller shaft portion, thereby performing contact cooling on the sheet, thereby improving the cooling efficiency of the sheet cooling device 105.

[0032] Furthermore, by arranging the spray roller 2 between adjacent cooling rollers 1 and staggering the spray roller 2 and the cooling roller 1 vertically, the length of the sheet between adjacent rollers is increased, thereby facilitating the arrangement of the spray assembly, thereby preventing the spray assembly from spraying cooling liquid onto the cooling roller 1 and the spray roller 2 and increasing the range of action of the dehydration assembly on the sheet; by arranging the dehydration roller 5 between adjacent cooling rollers 1 and staggering the dehydration roller 5 and the cooling roller 1 vertically, the length of the sheet between adjacent rollers is increased, thereby facilitating the arrangement of the dehydration assembly and thereby increasing the range of action of the dehydration assembly.

[0033] In some embodiments, the liquid spray assembly includes a front liquid spray component 3 and a back liquid spray component 4. The liquid spray roller 2 and the two adjacent cooling rollers 1 are arranged in a triangle and define a first triangular area. One of the front liquid spray component 3 and the back liquid spray component 4 is located in the first triangular area, and the other is located outside the first triangular area. The front liquid spray component 3 is used to spray cooling liquid toward the top surface of the sheet, and the back liquid spray component 4 is used to spray cooling liquid toward the bottom surface of the sheet.

[0034] Specifically, the first triangular area is defined by the center of the roller shaft of the liquid spraying roller 2 and the center connecting line of the roller shafts of the two adjacent cooling rollers 1. The liquid spraying parts located in the first triangular area and the liquid spraying parts located outside the first triangular area spray the cooling liquid toward the top surface or the bottom surface of the sheet respectively, thereby increasing the contact area between the surface of the sheet and the cooling liquid, thereby improving the cooling efficiency of the sheet cooling device 105.

[0035] Furthermore, the front spraying member 3 and the back spraying member 4 are arranged along the conveying direction on both sides of the spraying roller 2. The spraying members respectively located on both sides of the spraying roller 2 increase the rationality of the layout of the spraying members, thereby facilitating the inspection and replacement of each component.

[0036] In some embodiments, the liquid removal component includes a front liquid removal component 6 and a back liquid removal component 7. The liquid removal roller 5 and the two adjacent cooling rollers 1 are arranged in a triangle and define a second triangular area. One of the front liquid removal component 6 and the back liquid removal component 7 is located in the second triangular area, and the other is located outside the second triangular area. The front liquid removal component 6 is used to remove the cooling liquid on the top surface of the sheet, and the back liquid removal component 7 is used to remove the cooling liquid on the bottom surface of the sheet.

[0037] Specifically, the second triangular area is defined by the center of the roller shaft of the liquid removal roller 5 and the center connecting line of the roller shafts of the two adjacent cooling rollers 1. The cooling liquid on the top or bottom surface of the sheet is removed by the liquid spraying member located in the second triangular area and the liquid removal member located outside the second triangular area, so that the positions of the liquid removal member and the liquid spraying member are arranged correspondingly to effectively remove the cooling liquid, thereby improving the cooling efficiency of the sheet cooling device 105.

[0038] Preferably, the front liquid removal member 6 and the back liquid removal member 7 are arranged along the conveying direction on both sides of the liquid removal roller 5. The liquid removal members respectively located on both sides of the liquid removal roller 5 increase the rationality of the layout of the liquid removal members, thereby facilitating the inspection and replacement of each component.

[0039] It should be noted that the setting position and number of the liquid removal parts and the liquid spray parts are determined according to the effective range of the liquid spray parts and the liquid removal parts and the spacing between adjacent roller parts. Therefore, whether changing the number of liquid removal parts and the liquid spray parts or changing the position of the liquid removal parts and the liquid spray parts falls within the protection scope of the present application.

[0040] In some embodiments, the spacing between the liquid spraying roller 2 and the adjacent cooling roller 1, and the spacing between the liquid removal roller 5 and the adjacent cooling roller 1 are both greater than the spacing between two adjacent cooling rollers 1, thereby increasing the space for arranging the liquid spraying parts and the liquid removal parts so as to arrange multiple liquid spraying parts and multiple liquid removal parts along the conveying direction, thereby improving the cooling efficiency of the sheet cooling device 105.

[0041] Preferably, the vertical heights of the plurality of cooling rollers 1 are equal, and the vertical heights of the liquid spray roller 2 and the liquid removal roller 5 are both greater than the vertical height of the cooling roller 1. Since the vertical height of the cooling roller 1 is relatively low, if the vertical heights of the liquid spray roller 2 and the liquid removal roller 5 are less than the vertical height of the cooling roller 1, the arrangement space of the liquid removal component and the liquid spray component will be reduced, and even the reverse liquid spray component 4 and the reverse liquid removal component 7 acting on the bottom surface of the sheet material cannot be arranged. Therefore, by setting the vertical heights of the liquid spray roller 2 and the liquid removal roller 5 to be greater than the vertical height of the cooling roller 1, the layout space is increased, thereby improving the cooling efficiency of the sheet material cooling device 105.

[0042] Specifically, the spray roller 2 is arranged adjacent to the cooling roller 1 located at the first position along the conveying direction, and the deliquoring roller 5 is arranged adjacent to the cooling roller 1 located at the last position along the conveying direction, so that the sheet starts to be water-cooled when passing through the cooling roller 1, thereby improving the cooling efficiency of the sheet cooling device 105.

[0043] Furthermore, the cooling efficiency of the sheet cooling device 105 is improved by adding a plurality of liquid spraying units and liquid removal units along the conveying direction.

[0044] In some embodiments, the front spray element 3 and the back spray element 4 are both water spray mist machines, and the water spray holes of the water spray mist machines are facing the sheet material. The water spray mist machines are used to atomize the coolant so that the coolant covers a large area of ​​the sheet material surface, thereby improving the cooling efficiency of the sheet material cooling device 105.

[0045] It should be noted that those skilled in the art can understand that the present application is not limited to the above-mentioned water spray mist machine, but may also be other structural forms such as a shower water spray mechanism and a pressurized water spray mechanism that can spray coolant, and other structural forms should also fall within the scope of protection of the present application; and the working principle of the water spray mist machine is well known to those skilled in the art, and does not belong to the core improvement part of the present application, and will not be elaborated here.

[0046] In some embodiments, the front liquid removal component 6 and the back liquid removal component 7 are both water blowing fans, which are used to blow air on the surface of the sheet, thereby accelerating the evaporation of the coolant and the air flow rate on the surface of the sheet, thereby improving the cooling efficiency of the sheet cooling device 105.

[0047] In a specific embodiment of the utility model, a sheet production line 100 is also provided, including a mixer 101, a hot melt extruder 102, an extrusion die 103, three forming rollers 104, a sheet cooling device 105, a cutter 106 and a sheet winder 107 arranged at intervals along the conveying direction.

[0048] Specifically, the mixer 101 is used for the high-temperature fusion process of raw materials; the hot melt extruder 102 and the extrusion die 103 are used for the die extrusion molding process; the molding three rollers 104 and the sheet cooling device 105 are used for the sheet cooling and shaping process; the cutter 106 and the sheet winder 107 are used for the sheet cutting and winding process, wherein the sheet cooling device 105 is located between the molding three rollers 104 and the cutter 106.

[0049] Since the sheet material production line 100 adopts all embodiments of the sheet material cooling device 105 , the sheet material production line 100 has all the beneficial effects brought by the sheet material cooling device 105 .

[0050] It should be noted that the working principles of the mixer 101, hot melt extruder 102, extrusion die head 103, three-roll molding 104, cutter 106 and sheet winder 107 are well known to those skilled in the art and do not belong to the core improvement part of the present application, so they will not be repeated here.

[0051] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0054] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A sheet cooling device, characterized in that: include: A plurality of cooling rollers (1) are arranged at intervals along the conveying direction of the sheet; A liquid spraying unit, comprising a liquid spraying roller (2) and a liquid spraying assembly, wherein the liquid spraying roller (2) is arranged between two adjacent cooling rollers (1) and is arranged vertically staggered with the cooling rollers (1), and the liquid spraying assembly is arranged between the liquid spraying roller (2) and the cooling roller (1) and is used to spray cooling liquid onto the sheet; as well as A dehydration unit is arranged downstream of the liquid spraying unit along the conveying direction, and the dehydration unit comprises a dehydration roller (5) and a dehydration assembly. The dehydration roller (5) is arranged between two adjacent cooling rollers (1) and is arranged vertically staggered with the cooling roller (1). The dehydration assembly is arranged between the dehydration roller (5) and the cooling roller (1) and is used to remove cooling liquid on the sheet.

2. The sheet material cooling device according to claim 1, characterized in that: The liquid spraying assembly comprises a front liquid spraying component (3) and a back liquid spraying component (4); the liquid spraying roller (2) and the two adjacent cooling rollers (1) are arranged in a triangle and define a first triangular area; one of the front liquid spraying component (3) and the back liquid spraying component (4) is located in the first triangular area, and the other is located outside the first triangular area.

3. The sheet material cooling device according to claim 2, characterized in that: The front liquid spraying element (3) and the back liquid spraying element (4) are arranged on both sides of the liquid spraying roller (2) along the conveying direction.

4. The sheet material cooling device according to claim 2, characterized in that: The front liquid spraying element (3) and the back liquid spraying element (4) are both water spraying machines, and the water spraying holes of the water spraying machines are facing the sheet material.

5. The sheet material cooling device according to claim 1, characterized in that: The liquid removal component comprises a front liquid removal component (6) and a back liquid removal component (7); the liquid removal roller (5) and the two adjacent cooling rollers (1) are arranged in a triangle and define a second triangular area; one of the front liquid removal component (6) and the back liquid removal component (7) is located in the second triangular area, and the other is located outside the second triangular area.

6. The sheet material cooling device according to claim 5, characterized in that: The front liquid removal component (6) and the back liquid removal component (7) are arranged on both sides of the liquid removal roller (5) along the conveying direction.

7. The sheet material cooling device according to claim 5, characterized in that: The front liquid removal component (6) and the back liquid removal component (7) are both water blowing fans, and the distance between the liquid removal roller (5) and the adjacent cooling roller (1) is greater than the distance between two adjacent cooling rollers (1).

8. The sheet material cooling device according to claim 1, characterized in that: The vertical heights of the plurality of cooling rollers (1) are equal, and the vertical height of the liquid spraying roller (2) and the vertical height of the liquid removal roller (5) are both greater than the vertical height of the cooling roller (1).

9. A sheet production line, characterized in that: It comprises the sheet material cooling device (105) according to any one of claims 1 to 8.

10. The sheet material production line according to claim 9, characterized in that: The sheet material production line (100) comprises three forming rollers (104) and a cutting knife (106) arranged at intervals along the conveying direction, and the sheet material cooling device is located between the three forming rollers (104) and the cutting knife (106).

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