High-flatness PVC film calendering device

Abstract

The utility model discloses a high-flatness PVC (polyvinyl chloride) film calendering device, which relates to the technical field of PVC calendered film production and comprises a calendering box. The compression roller assembly comprises an upper calendaring roller and a lower calendaring roller, and the inner side of the upper calendaring roller and the inner side of the lower calendaring roller are each provided with a rotating assembly, a heat dissipation assembly and an air inlet and outlet assembly; and the guide roller assembly comprises a guide roller, and a cooling assembly used for cooling is arranged on the inner side of the guide roller. According to the utility model, the upper calendering roller and the guide roller are arranged, and the first air outlet, the first air inlet and the second air inlet are respectively formed in the outer sides of the upper calendering roller and the guide roller, so that not only is the cooling work completed, but also the problem of hardening of a PVC film caused by direct blowing is avoided, the PVC film is effectively and quickly shaped, and the flatness of the PVC film is improved; not only can the upper calendering roller be effectively cooled, but also the PVC film can be shaped by redundant air flow, so that the utilization rate of resources is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC calendering film production, in particular to a high-flatness PVC film calendering device. Background Art

[0002] PVC calendered film is a plastic product produced by calendering. The raw materials are formulated according to the formula required by the product, mixed at high temperature and high speed, and then pressed into a film of uniform thickness by calendering rollers, and finally made into rolls.

[0003] The utility model patent with patent application number 202321936989.8 discloses a calender roller adjustment device for PVC calendered film, comprising: a base; a cooling component, the bottom of the cooling component is fixedly connected to the right side of the top of the base, the cooling component comprises a fan, the bottom of the fan is fixedly connected to the right side of the top of the base, the right side of the fan is connected to an air outlet, and the top of the base and the right side of the fan are fixedly connected with a refrigeration box. The utility model provides a calender roller adjustment device for PVC calendered film, which blows the cold air generated by the refrigerator connection block into the ventilation rack connection block through the fan connection block, and then blows the cold air to the surface of the calender roller connection block through the air outlet connection block, thereby cooling the calender roller connection block. The structure is simple and practical, and effectively solves the problem that the calender roller connection block generates heat during operation, causing the plastic material to be over-softened or melted, thereby reducing the performance and quality of the product.

[0004] However, the above device still has some shortcomings in actual use. The most obvious one is that after quickly cooling the calender roller, it directly uses a cold air blower to blow air at the surface of the calender roller. Most of the air flow is directly blown into the air, which not only causes a waste of resources and a low blowing efficiency, but also directly blows air onto the PVC film being calendered, causing it to harden prematurely, affecting the calendering effect and the quality of the PVC film, and causing its flatness to decrease.

[0005] Therefore, it is necessary to invent a high-flatness PVC film calendering device to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a high-flatness PVC film calendering device, by arranging a rotating component, a heat dissipation component and an air inlet and outlet component inside the calendering component, and arranging a cooling mechanism inside the guide roller mechanism, so as to solve the problems of low blowing efficiency and waste of resources proposed in the above-mentioned background technology, and direct blowing easily blows directly onto the PVC film being calendered, causing it to harden prematurely, affecting the calendering effect and the quality of the PVC film, and causing its flatness to decrease.

[0007] According to one aspect of the present disclosure, the following technical solution is provided: a high-flatness PVC film calendering device, characterized in that it comprises:

[0008] A calendering box, wherein a support base for bearing is arranged at the bottom end of the calendering box, a feed inlet and a discharge inlet are arranged on both sides of the calendering box, and a cooling fan is arranged at the rear side of the calendering box;

[0009] A pressing roller assembly, the pressing roller assembly comprising an upper calendering roller and a lower calendering roller, the top end of the upper calendering roller is provided with a hydraulic cylinder for lifting, the bottom end of the lower calendering roller is provided with a fixing rod for fixing the height, and the inner sides of the upper calendering roller and the lower calendering roller are both provided with a rotating assembly, a heat dissipation assembly and an air inlet and outlet assembly;

[0010] A guide roller assembly, the guide roller assembly comprising guide rollers, two guide rollers are provided and symmetrically arranged on the inner side of the calender box, and a cooling assembly for cooling is provided on the inner side of the guide roller;

[0011] According to at least one embodiment of the present disclosure, a high-flatness PVC film calendering device, the rotating assembly includes a rotating plate, two rotating plates are provided and symmetrically arranged on both sides of the upper calendering roller, the outer side of the rotating plate is fixedly connected to a limiting block, the limiting block is rotatably connected to the inner side of the upper calendering roller, and the outer side of the rotating plate is fixedly connected to a clamping block.

[0012] According to a high-flatness PVC film calendering device of at least one embodiment of the present disclosure, the air inlet and outlet assembly includes a first air outlet and a first air inlet, and the first air outlet and the first air inlet are respectively arranged on the inner side of the rotating plates on both sides and are interconnected with the inner side of the upper calendering roller.

[0013] According to a high-flatness PVC film calendering device of at least one embodiment of the present disclosure, the heat dissipation component includes a connecting rod, a ring, a support rod and a metal thermal conductive sheet, the ring is provided in multiple numbers and is evenly arranged on the outside of the connecting rod, the support rod is fixedly connected between the ring and the metal thermal conductive sheet, and the metal thermal conductive sheet is arranged on the inner side of the upper calendering roller.

[0014] According to at least one embodiment of the present disclosure, a high-flatness PVC film calendering device, the outer side of the guide roller is fixedly connected with an outer sleeve, the cooling assembly includes a second air inlet, a through hole and a through slot, the second air inlet is arranged on the outer side of the guide roller and is interconnected with the guide roller, a plurality of through holes are arranged and are evenly arranged on the inner side of the guide roller, and the through slot is arranged on the inner side of the outer sleeve and is arranged corresponding to the through hole.

[0015] Technical effects and advantages of the utility model:

[0016] (1) The utility model is provided with an upper calendering roller and a guide roller on the inner side of the calendering box, and a first air outlet, a first air inlet and a second air inlet are respectively provided on the outer sides of the upper calendering roller and the guide roller, which can be interconnected in a set manner. The cold air machine can effectively inject cold air into the inner side of the upper calendering roller to effectively cool the upper calendering roller, which not only completes the cooling work, but also avoids the problem of hardening of the PVC film due to direct blowing. After the cooling is completed, the airflow is transmitted to the inner side of the guide roller to cool the PVC film, which effectively shapes the PVC film quickly and improves its flatness. It can not only effectively cool the upper calendering roller, but also use the excess airflow to shape the PVC film, thereby improving the utilization rate of resources;

[0017] (2) The utility model provides an upper calendering roller on the inner side of a calendering box, a hydraulic cylinder is provided at the top end of the upper calendering roller, and a lower calendering roller is provided at the bottom end of the upper calendering roller. The lower calendering roller can effectively support the PVC film entering from the feed port, and the upper calendering roller at the top can move up and down driven by the hydraulic cylinder, so that the position of the upper calendering roller can be effectively selected according to the production thickness of different PVC films, thereby effectively improving the applicability of the production device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings illustrate exemplary embodiments of the present disclosure and together with the description serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0019] Figure 1 It is a schematic diagram of the overall structure according to an embodiment of the present disclosure.

[0020] Figure 2 It is a schematic diagram of the internal structure according to an embodiment of the present disclosure.

[0021] Figure 3 It is a schematic diagram of the internal structure of a calendering roller according to one embodiment of the present disclosure.

[0022] Figure 4 It is a schematic diagram of the internal structure of a guide roller according to an embodiment of the present disclosure.

[0023] The specific reference numerals in the figure are:

[0024] 1. Calendering box; 11. Support base; 12. Discharge port; 13. Feed port;

[0025] 2. Upper calendering roller; 21. Hydraulic cylinder;

[0026] 3. Lower calender roller; 31. Fixed rod;

[0027] 4. guide roller; 41. through hole; 42. outer sleeve; 421. through groove; 43. second air inlet;

[0028] 5. Rotating plate; 51. Limiting block; 52. First air outlet; 53. First air inlet; 54. Block;

[0029] 6. Connecting rod; 61. Ring; 62. Support rod; 63. Metal heat conducting sheet. DETAILED DESCRIPTION

[0030] The present disclosure is further described in detail below in conjunction with the accompanying drawings and implementations. It is understood that the specific implementations described herein are only used to explain the relevant content, rather than to limit the present disclosure. It should also be noted that, for ease of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in the present disclosure can be combined with each other. The technical solution of the present disclosure will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] Unless otherwise specified, the exemplary embodiments / embodiments shown will be understood as providing exemplary features of various details of some ways in which the technical concept of the present disclosure can be implemented in practice. Therefore, unless otherwise specified, the features of the various embodiments / embodiments can be combined, separated, interchanged and / or rearranged without departing from the technical concept of the present disclosure.

[0033] The use of cross-hatching and / or shading in the accompanying drawings is generally used to make the boundaries between adjacent components clear. As such, unless otherwise specified, the presence or absence of cross-hatching or shading does not convey or indicate any preference or requirement for the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. In addition, in the accompanying drawings, the sizes and relative sizes of the components may be exaggerated for clarity and / or descriptive purposes. When the exemplary embodiments can be implemented differently, the specific process sequence can be performed in a different order than described. For example, two successively described processes can be performed substantially simultaneously or in an order opposite to the described order. In addition, the same figure numbers represent the same components.

[0034] When a component is referred to as being "on" or "over," "connected to," or "coupled to" another component, the component may be directly on, directly connected to, or directly coupled to the other component, or intervening components may be present. However, when a component is referred to as being "directly on," "directly connected to," or "directly coupled to" another component, there are no intervening components. For this purpose, the term "connected" may refer to a physical connection, an electrical connection, etc., with or without intervening components.

[0035] For descriptive purposes, the present disclosure may use spatially relative terms such as "under," "beneath," "under," "down," "over," "upper," "above," "higher," and "side (e.g., as in "sidewall")," to describe the relationship of one component to another (other) component as shown in the accompanying drawings. The spatially relative terms are intended to encompass different orientations of the device in use, operation, and / or manufacture in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, components described as "under" or "beneath" other components or features would subsequently be positioned "over" the other components or features. Thus, the exemplary term "under" can encompass both the "above" and "below" orientations. Furthermore, the device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0036] The terms used here are for the purpose of describing specific embodiments, and are not intended to be restrictive. As used here, unless the context clearly indicates otherwise, the singular forms "one (kind, person)" and "said (the)" are also intended to include plural forms. In addition, when the terms "comprise" and / or "include" and their variations are used in this specification, it is explained that there are stated features, integral bodies, steps, operations, parts, assemblies and / or their groups, but it is not excluded that there are or add one or more other features, integral bodies, steps, operations, parts, assemblies and / or their groups. It should also be noted that, as used here, the terms "substantially", "approximately" and other similar terms are used as approximate terms and not as degree terms, so that they are used to explain the inherent deviations of the measured values, calculated values ​​and / or the values ​​provided that will be recognized by those of ordinary skill in the art.

[0037] Figure 1 It is a schematic diagram of the overall structure of a high-flatness PVC film calendering device according to an embodiment of the present disclosure.

[0038] like Figure 1-Figure 3As shown, a high-flatness PVC film calendering device disclosed in the present invention may include: a calendering box 1, the bottom end of the calendering box 1 is fixedly connected to the top end of a support base 11, the support base 11 is used to support the calendering box 1, the feed port 13 is arranged to facilitate the entry of the PVC film to be calendered and to be removed from the discharge port 12, and a cooling fan is also arranged at the rear of the calendering box 1 and fixed at the rear of the calendering box 1 for subsequent cooling of the calendering assembly.

[0039] like Figure 2 As shown, in the present disclosure, the calendering assembly includes an upper calendering roller 2 and a lower calendering roller 3, wherein a hydraulic cylinder 21 for lifting is provided at the top end of the upper calendering roller 2, and a fixing rod 31 for fixing the height is provided at the bottom end of the lower calendering roller 3.

[0040] Therefore, the height of the lower calendering roller 3 cannot be changed, and two fixed rods 31 are symmetrically arranged. The lower calendering roller 3 is arranged between the two fixed rods 31 and at the bottom end of the PVC film entering from the feed port 13. The upper calendering roller 2 arranged above can move up and down driven by the hydraulic cylinder 21. When used specifically, the height of the upper calendering roller 2 can be selected according to the production of PVC films of different thicknesses to improve the applicability of the device.

[0041] like Figure 3 As shown, in a preferred embodiment, a rotating assembly, an air inlet and outlet assembly and a heat dissipation assembly are arranged inside the calendering assembly, wherein the rotating assembly includes a rotating plate 5, a limit block 51 and a clamping block 54, rotating plates 5 are arranged on both sides of the upper calendering roller 2, and the limit block 51 is connected to the inner side of the upper calendering roller 2 for limited rotation, and the clamping block 54 is used to be fixed to the limit rods arranged on both sides to fix it, and this fixing rod has the same function as the lower calendering roller 3 arranged below, and the air inlet and outlet assembly includes a first air outlet 52 and a first air inlet 53, and the first air outlet 52 and the first air inlet 53 are symmetrically arranged with two, and the first air inlet 53 is interconnected with the cold air blower arranged outside the calender box 1, and is used to blow the cold air blown by the cold air blower into the inner side of the upper calendering roller 2 to cool the upper calendering roller 2, and blown out from the first air outlet 52. The heat dissipation component includes a connecting rod 6, a ring 61, a support rod 62 and a metal heat conductive sheet 63. The connecting rod 6 is fixed on the inner side of the upper calendering roller 2 and fixed on the end of the rotating plate 5 on one side. The ring 61 is provided with multiple and evenly arranged on the outer side of the connecting rod 6. The support rod 62 is fixedly connected to the outer side of the ring 61 and is fixedly connected to the metal heat conductive sheet 63. The metal heat conductive sheet 63 is arranged on the inner side of the inner wall of the upper calendering roller 2.

[0042] Therefore, by setting the rotating plate 5 and the limit block 51, and the limit block 51 is rotatably set on the inner side of the upper calendering roller 2, the upper calendering roller 2 will not drive the limit block 51 to rotate when it rotates, and by setting the metal heat conductive plate 63, the heat generated by the upper calendering roller 2 can be effectively absorbed by heat conduction, and the inner side of the upper calendering roller 2 can be quickly cooled by cold air. During specific use, when the upper calendering roller 2 rotates, the rotating plate 5 will not rotate with it, and the cold air in the cold air machine enters the inner side of the upper calendering roller 2 from the first air inlet 53, cools the inner side of the upper calendering roller 2, and then flows out from the first air outlet 52 after the cooling is completed.

[0043] Figure 3 It is a schematic diagram of the internal structure of an upper calendering roller in a high-flatness PVC film calendering device according to an embodiment of the present disclosure.

[0044] like Figure 4 As shown, in the present disclosure, the guide roller assembly includes a guide roller 4, two guide rollers 4 are symmetrically arranged and their rotation mode is the same as that of the upper calendering roller 2 and the lower calendering roller 3, a second air inlet 43 is arranged on one side of the guide roller 4, an outer sleeve 42 is arranged on the outer side of the guide roller 4, a plurality of through holes 41 are evenly arranged on the outer side of the guide roller 4, and through grooves 421 are arranged at positions corresponding to the outer sleeve 42 and the through holes 41.

[0045] Therefore, two outer sleeves 42 are symmetrically arranged, which can effectively guide the calendered PVC film. The second air inlet 43 and the first air outlet 52 correspond to each other on one side, and they are connected to each other through a hose. The air flow after being cooled on the inner side of the upper calendering roller 2 flows from the first air outlet 52 to the second air inlet 43 through the hose and flows into the inner side of the guide roller 4, and finally sprays out from the inner side of the through hole 41 and the through groove 421, effectively completing the cooling of the PVC film, not only completing the material guiding work, but also effectively cooling the PVC film to make it quickly molded, and effectively improving the flatness of the PVC film.

[0046] Figure 4 It is a schematic diagram of the internal structure of a guide roller in a high-flatness PVC film calendering device according to an embodiment of the present disclosure.

[0047] When in use, the PVC film to be calendered is put in from the feed port 13, passes through the lower calendering roller 3, and the height of the upper calendering roller 2 is adjusted according to the thickness to be calendered. The hydraulic cylinder 21 is started to drive the upper calendering roller 2 to move downward, thereby effectively calendering the PVC film. The PVC film continues to move to the inner side of the guide roller 4 and finally moves out from the discharge port 12.

[0048] During this process, the air cooler is started, and the wind in the air cooler flows in from the first air inlet 53. By setting the metal heat conductive sheet 63, the heat generated by the upper calendering roller 2 can be effectively absorbed by heat conduction, and the inner side of the upper calendering roller 2 is quickly cooled by the cold wind. The cold air flows into the second air inlet 43 along the first air outlet 52 and is finally ejected from the inner side of the through hole 41 and the through groove 421, effectively completing the cooling of the PVC film, not only completing the material guiding work, but also effectively cooling the PVC film to make it quickly take shape, and effectively improving the flatness of the PVC film.

[0049] In the description of this specification, the description with reference to the terms "one embodiment / method", "some embodiments / methods", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment / method or example are included in at least one embodiment / method or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / method or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments / methods or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments / methods or examples described in this specification and the features of different embodiments / methods or examples, unless they are contradictory.

[0050] In addition, 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 the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present disclosure, and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A high-flatness PVC film calendering device, characterized in that: include: A calendering box (1), wherein a support base (11) for bearing is arranged at the bottom end of the calendering box (1), a discharge port (12) and a feed port (13) for feeding and discharging are arranged on both sides of the calendering box (1), and a cooling fan is arranged on the rear side of the calendering box (1); A pressing roller assembly, the pressing roller assembly comprising an upper calendering roller (2) and a lower calendering roller (3), the top end of the upper calendering roller (2) being provided with a hydraulic cylinder (21) for lifting and lowering, the bottom end of the lower calendering roller (3) being provided with a fixing rod (31) for fixing the height, and the inner sides of the upper calendering roller (2) and the lower calendering roller (3) being provided with a rotating assembly, a heat dissipation assembly and an air inlet and outlet assembly; A guide roller assembly, the guide roller assembly comprising a guide roller (4), two guide rollers (4) are provided and symmetrically arranged on the inner side of a calender box (1), and a cooling assembly for cooling is arranged on the inner side of the guide roller (4).

2. The high-flatness PVC film calendering device according to claim 1, characterized in that: The rotating assembly comprises a rotating plate (5), two rotating plates (5) are provided and symmetrically arranged on both sides of the upper calendering roller (2), the outer side of the rotating plate (5) is fixedly connected to a limiting block (51), the limiting block (51) is connected to the inner side of the upper calendering roller (2) in a limited rotation manner, and the outer side of the rotating plate (5) is fixedly connected to a clamping block (54).

3. The high-flatness PVC film calendering device according to claim 2, characterized in that: The air inlet and outlet assembly comprises a first air outlet (52) and a first air inlet (53), wherein the first air outlet (52) and the first air inlet (53) are respectively arranged on the inner sides of the rotating plates (5) on both sides and are interconnected with the inner side of the upper calendering roller (2).

4. The high-flatness PVC film calendering device according to claim 3, characterized in that: The heat dissipation assembly comprises a connecting rod (6), a sleeve (61), a support rod (62) and a metal heat conductive sheet (63); the sleeve (61) is provided with a plurality of sleeves and is evenly arranged on the outside of the connecting rod (6); the support rod (62) is fixedly connected between the sleeve (61) and the metal heat conductive sheet (63); and the metal heat conductive sheet (63) is arranged on the inside of the upper calendering roller (2).

5. The high-flatness PVC film calendering device according to claim 4, characterized in that: The outer side of the guide roller (4) is fixedly connected to an outer sleeve (42), and the cooling component includes a second air inlet (43), a through hole (41) and a through groove (421), wherein the second air inlet (43) is arranged on the outer side of the guide roller (4) and is interconnected with the guide roller (4), a plurality of through holes (41) are arranged and are evenly arranged on the inner side of the guide roller (4), and the through groove (421) is arranged on the inner side of the outer sleeve (42) and is arranged corresponding to the through hole (41).

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