Online heat treatment equipment

Abstract

The utility model relates to the technical field of composite film processing, in particular to online heat treatment equipment, which comprises a first heat treatment structure, a second heat treatment structure and a third heat treatment structure, the heat treatment oven is positioned at the downstream of the first heat treatment structure; the second heat treatment structure is located on the downstream portion of the heat treatment oven and comprises a second roller assembly and a third roller assembly which independently control the temperature, and each of the second roller assembly and the third roller assembly comprises two rollers; rollers of the second roller assembly and the third roller assembly are alternately arranged in the moving direction of the composite film, the second roller assembly can heat the first face of the composite film, and the third roller assembly can heat the second face of the composite film. According to the utility model, the consistency of the composite membrane can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of composite film processing, in particular to an online heat treatment device. Background Art

[0002] In the film manufacturing industry, in order to improve production efficiency, a cast film formed by casting is compounded into a composite film and then stretched. Before stretching, the composite film needs to be heat-treated. For the current online heat treatment device for multi-layer composite films, the heat treatment process is carried out by the structure of the heat treatment steel roller and the action of the heat treatment oven.

[0003] In the steel roller structure of the online heat treatment device, there are multiple groups of heating rollers located in the heat treatment temperature zone. Each group has two rollers. One of the two rollers in each group heats the inner layer of the multi-layer composite film, and the other heats the outer layer of the multi-layer composite film. In actual production, the temperature of the heating rollers is adjusted according to the inner and outer layer differences of the product performance after actual stretching, but the problem of large differences between the inner and outer layers of the composite film cannot be effectively solved. Moreover, the stroke between the two groups of heat treatment rollers is short, and when the production speed is fast, the heat treatment effect is poor, resulting in poor consistency and uniformity of the performance of the composite film.

[0004] Therefore, an online heat treatment device is needed to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an online heat treatment device, which can improve the consistency of the composite film.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The online heat treatment device includes:

[0008] A first heat treatment structure, including multiple groups of first roller assemblies arranged along a first direction;

[0009] A heat treatment oven, located downstream of the first heat treatment structure;

[0010] A second heat treatment structure, located downstream of the heat treatment oven, including a second roller assembly and a third roller assembly with independently controlled temperatures. The second roller assembly and the third roller assembly each include two rollers. The rollers of the second roller assembly and the third roller assembly are arranged alternately along the movement direction of the composite film. The second roller assembly can heat the first surface of the composite film, and the third roller assembly can heat the second surface of the composite film.

[0011] In some embodiments, the second roller assembly includes a second upper roller, a second lower roller, a second upper pressure roller and a second lower pressure roller, the second upper roller and the second lower roller are arranged in parallel and spaced apart along a second direction, the second upper pressure roller is arranged parallel to the second upper roller and attached to the second upper roller, the second lower pressure roller is arranged parallel to the second lower roller and attached to the second lower roller, and the second upper roller and the second lower roller heat the first surface of the composite film.

[0012] In some embodiments, the third roller assembly includes a third upper roller, a third lower roller, a third upper pressure roller and a third lower pressure roller, the third upper roller and the third lower roller are arranged in parallel and spaced apart along the second direction, the third upper pressure roller is arranged parallel to the third upper roller and attached to the third upper roller, the third lower pressure roller is arranged parallel to the third lower roller and attached to the third lower roller, and the third upper roller and the third lower roller heat the second surface of the composite film.

[0013] In some embodiments, the second lower roller, the third lower roller, the second upper roller, and the third upper roller are sequentially arranged along the moving path of the composite film.

[0014] In some embodiments, the second upper roller, the second lower roller, the third upper roller, and the third lower roller are hollow inside and have heat medium passed through them, the temperature of the heat medium passed through the second upper roller and the second lower roller is the same, and the temperature of the heat medium passed through the third upper roller and the third lower roller is the same.

[0015] In some embodiments, the first roller assembly includes a first upper roller, a first lower roller, a first upper pressure roller and a first lower pressure roller, the first upper roller and the first lower roller are staggered along a first direction, and the first upper roller and the first lower roller are arranged in parallel and spaced apart, the first upper pressure roller is arranged in parallel with the first upper roller and is attached to the first upper roller, and the first lower pressure roller is arranged in parallel with the first lower roller and is attached to the first lower roller.

[0016] In some embodiments, the heat treatment oven includes a box body and a transmission structure, wherein the transmission structure is located in the box body, and the transmission structure is used to pull the composite film from the first heat treatment structure.

[0017] In some embodiments, the transmission structure includes a plurality of active rollers and a plurality of driven rollers arranged in parallel.

[0018] In some embodiments, an electric heater is disposed in the heat treatment oven, and the temperature of the electric heater is adjustable.

[0019] In some embodiments, a temperature detector is provided in the heat treatment oven.

[0020] Advantages of the utility model:

[0021] An online heat treatment device provided by the utility model, wherein the first heat treatment structure includes a plurality of first roller assemblies arranged along the first direction, the heat treatment oven is located downstream of the first heat treatment structure, and the second heat treatment structure is located downstream of the heat treatment oven. The second heat treatment structure includes a second roller assembly and a third roller assembly with independently controlled temperatures. The second roller assembly and the third roller assembly each include two rollers, and the rollers of the second roller assembly and the third roller assembly are alternately arranged along the moving direction of the composite film. During the heating treatment of the composite film, the second roller assembly can heat the first side of the composite film, and the third roller assembly can heat the second side of the composite film. Since the second roller assembly only heats the first side of the composite film and the third roller assembly only heats the second side of the composite film, it is convenient to control the temperature according to the difference between the first side and the second side of the composite film, thereby improving the consistency of the composite film. Description of the drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments of the present utility model. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the content of the embodiments of the present utility model and these drawings.

[0023] Figure 1 It is a schematic diagram of an online heat treatment device of the present utility model.

[0024] In the figure:

[0025] 100, composite film; 1, first heat treatment structure; 11, first lower roller; 12, first upper roller; 13, first lower pressure roller; 14, first upper pressure roller; 2, heat treatment oven; 21, box body; 22, driving roller; 23, driven roller; 3, second roller assembly; 31, second upper roller; 32, second lower roller; 33, second upper pressure roller; 34, second lower pressure roller; 4, third roller assembly; 41, third upper roller; 42, third lower roller; 43, third upper pressure roller; 44, third lower pressure roller; 5, traction assembly; 51, traction roller. Detailed implementation manners

[0026] Before explaining any implementation manner of the present application in detail, it should be understood that the present application is not limited to the structural details and component arrangements described in the following description or shown in the above drawings.

[0027] In this application, the terms "comprising", "including", "having" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or apparatus comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or apparatus. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising that element.

[0028] In this application, the terms "connected", "combined", "coupled", "mounted" may be direct connection, combination, coupling or mounting, or may be indirect connection, combination, coupling or mounting. Among them, by way of example, direct connection means that two parts or components are connected together without an intermediate member, and indirect connection means that two parts or components are respectively connected to at least one intermediate member, and these two parts or components are connected through the intermediate member. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and may include electrical connection or coupling.

[0029] In this application, those of ordinary skill in the art will understand that the functions performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0030] In this application, the orientation terms such as "upper", "lower", "left", "right", "front", "rear", etc. are described based on the orientation and positional relationship shown in the drawings, and should not be construed as a limitation on the embodiments of this application. In addition, in the context, it should also be understood that when it is mentioned that one element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element. It should also be understood that the orientation terms such as upper side, lower side, left side, right side, front side, rear side, etc. not only represent the positive orientation, but can also be understood as the side orientation. For example, the lower side can include directly below, lower left, lower right, lower front and lower rear, etc.

[0031] When performing heat treatment processing on the composite film, in order to improve the uniformity of the composite film, as Figure 1 shown, the present utility model provides an on-line heat treatment device. The on-line heat treatment device includes a first heat treatment structure 1, a heat treatment oven 2 and a second heat treatment structure.

[0032] Among them, the first heat treatment structure 1 includes multiple groups of first roller assemblies arranged along the first direction. The heat treatment oven 2 is located downstream of the first heat treatment structure 1. The second heat treatment structure is located downstream of the heat treatment oven 2 and includes a second roller assembly 3 and a third roller assembly 4 with independently controlled temperatures. The second roller assembly 3 and the third roller assembly 4 each include two rollers, and the rollers of the second roller assembly 3 and the third roller assembly 4 are alternately arranged along the moving direction of the composite film 100. The second roller assembly 3 can heat the first surface of the composite film 100, and the third roller assembly 4 can heat the second surface of the composite film 100. In this embodiment, the first direction is the horizontal direction, and the second direction is the direction perpendicular to the first direction.

[0033] By setting the second heat treatment structure, it is possible to cooperate with the first heat treatment assembly and the heat treatment oven 2 to improve the heat treatment effect. Since the second roller assembly 3 only heats the first surface of the composite film 100 and the third roller assembly 4 only heats the second surface of the composite film 100, it is convenient to control the temperature according to the difference between the first surface and the second surface of the composite film 100, thereby improving the consistency of the composite film 100. Moreover, the second heat treatment structure is located downstream of the heat treatment oven 2, avoiding the influence of the temperature of the heat treatment oven 2 on the second heat treatment structure.

[0034] In some embodiments, the second roller assembly 3 includes a second upper roller 31, a second lower roller 32, a second upper pressing roller 33, and a second lower pressing roller 34. The second upper roller 31 and the second lower roller 32 are arranged in parallel at intervals along the second direction. The second upper pressing roller 33 is arranged parallel to the second upper roller 31 and is attached to the second upper roller 31. The second lower pressing roller 34 is arranged parallel to the second lower roller 32 and is attached to the second lower roller 32. The second upper roller 31 and the second lower roller 32 heat the first surface of the composite film 100. The composite film 100 after being treated in the heat treatment oven 2 enters between the second lower pressing roller 34 and the second lower roller 32, then passes through the third roller assembly 4, then enters between the second upper pressing roller 33 and the second upper roller 31, and then passes through the third roller assembly 4 again. Through the above settings, the second upper roller 31 and the second lower roller 32 only heat the first surface of the composite film 100, ensuring the consistency of heating the first surface of the composite film 100.

[0035] In some embodiments, the third roller assembly 4 includes a third upper roller 41, a third lower roller 42, a third upper pressing roller 43, and a third lower pressing roller 44. The third upper roller 41 and the third lower roller 42 are arranged in parallel at an interval in the second direction. The third upper pressing roller 43 is arranged parallel to the third upper roller 41 and is attached to the third upper roller 41. The third lower pressing roller 44 is arranged parallel to the third lower roller 42 and is attached to the third lower roller 42. The third upper roller 41 and the third lower roller 42 heat the second side of the composite film 100. The composite film 100 processed between the second lower roller 32 and the second lower pressing roller 34 enters between the third lower pressing roller 44 and the third lower roller 42, then passes between the second upper roller 31 and the second upper pressing roller 33, and then enters between the third upper pressing roller 43 and the third upper roller 41, and finally is output. Through the above arrangement, the third upper roller 41 and the third lower roller 42 only heat the second side of the composite film 100, ensuring the consistency of heating the second side of the composite film 100.

[0036] In some embodiments, the second lower roller 32, the third lower roller 42, the second upper roller 31, and the third upper roller 41 are arranged in sequence along the movement path of the composite film 100. During the heating process of the composite film 100, the composite film 100 passes through the second lower roller 32, the third lower roller 42, the second upper roller 31, and the third upper roller 41 in sequence. The second lower roller 32 and the second upper roller 31 heat the first side of the composite film 100, and the third lower roller 42 and the third upper roller 41 heat the second side of the composite film 100, thereby ensuring the consistency of the composite film 100 after heat treatment.

[0037] In some embodiments, the second upper roller 31, the second lower roller 32, the third upper roller 41, and the third lower roller 42 are hollow inside and are passed through by a heat medium. The temperature of the heat medium passed through the second upper roller 31 and the second lower roller 32 is the same, and the temperature of the heat medium passed through the third upper roller 41 and the third lower roller 42 is the same. By the above method, the consistency of heating the first side and the second side of the composite film 100 can be ensured, thereby ensuring the consistency of the composite film 100 after heat treatment.

[0038] In some embodiments, the first roller assembly includes a first upper roller 12, a first lower roller 11, a first upper pressing roller 14, and a first lower pressing roller 13. The first upper roller 12 and the first lower roller 11 are arranged staggeredly along the first direction, and the first upper roller 12 and the first lower roller 11 are arranged in parallel at intervals. The first upper pressing roller 14 is arranged in parallel with the first upper roller 12 and is attached to the first upper roller 12, and the first lower pressing roller 13 is arranged in parallel with the first lower roller 11 and is attached to the first lower roller 11. When arranging the composite film 100, the composite film 100 is clamped between the first lower pressing roller 13 and the first lower roller 11 and passes through between the first upper roller 12 and the first upper pressing roller 14. By arranging multiple groups of the first roller assemblies, while heating the composite film 100, a traction effect can be achieved. In this embodiment, five groups of the first roller assemblies are provided. In other embodiments, they can be arranged according to actual needs and are not limited here too much. Both the first upper roller 12 and the first lower roller 11 are hollow cylinders, and a heat medium is introduced into both the first upper roller 12 and the first lower roller 11, which can play a role in heating.

[0039] In some embodiments, the heat treatment oven 2 includes a box body 21 and a transmission structure. The transmission structure is located in the box body 21, and the transmission structure is used to traction the composite film 100 from the first heat treatment structure 1. Through the above settings, the transmission structure can drive the composite film 100 into the box body 21. By setting the temperature of the box body 21, effective heat treatment can be performed on the composite film 100.

[0040] In some embodiments, the transmission structure includes a plurality of driving rollers 22 and a plurality of driven rollers 23 arranged in parallel. The plurality of driving rollers 22 and the plurality of driven rollers 23 are arranged at intervals and staggeredly. Through the cooperation of the driving rollers 22 and the driven rollers 23, the composite film 100 can be tractioned through the first heat treatment structure 1 and into the box body 21, and the composite film 100 can be kept in a tensioned state, so that the composite film 100 can be fully unfolded and can be effectively heat-treated in the box body 21.

[0041] In some embodiments, an electric heater (not shown in the figure) is provided in the heat treatment oven 2, and the temperature of the electric heater can be adjusted. By providing the electric heater, the heat treatment oven 2 can be effectively heated, and the temperature rises quickly and is constant, which is convenient to control. In other embodiments, heating coils can also be arranged in the box body 21 of the heat treatment oven 2, and a heat medium is filled in the heating coils, and the heat treatment oven 2 is heated in the form of heat exchange.

[0042] In some embodiments, a temperature detector (not shown in the figure) is provided in the heat treatment oven 2. By providing the temperature detector, the temperature of the heat treatment oven 2 can be monitored in real time. The temperature detector can display the temperature of the heat treatment oven 2, facilitating the operator to timely know whether the temperature of the heat treatment oven 2 reaches the set temperature. In other embodiments, a temperature sensor can also be used to detect the heat treatment oven 2.

[0043] In some embodiments, the on-line heat treatment device further includes a traction assembly 5. The traction assembly 5 is located downstream of the second heat treatment structure and is used to traction the composite film 100. By providing the traction assembly 5, the composite film 100 can be tractioned to move, so that the composite film 100 sequentially passes through the first heat treatment structure 1, the heat treatment oven 2 and the second heat treatment structure to complete the heat treatment and then enter the next process.

[0044] In some embodiments, the traction assembly 5 includes a plurality of traction rollers 51 arranged in parallel at intervals. The composite film 100 is sequentially tractioned and transmitted through the plurality of traction rollers 51. Through the cooperation of the traction rollers 51, the composite film 100 can be kept in a tensioned state while being tractioned to move to the next station.

[0045] Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An on-line heat treatment device, characterized in that, Comprising: A first heat treatment structure (1), including multiple groups of first roller assemblies arranged along a first direction; A heat treatment oven (2), located downstream of the first heat treatment structure (1); A second heat treatment structure, located downstream of the heat treatment oven (2), including a second roller assembly (3) and a third roller assembly (4) with independently controlled temperatures. The second roller assembly (3) and the third roller assembly (4) each include two rollers. The rollers of the second roller assembly (3) and the third roller assembly (4) are arranged alternately along the movement direction of the composite film (100). The second roller assembly (3) can heat the first surface of the composite film (100), and the third roller assembly (4) can heat the second surface of the composite film (100).

2. The online heat treatment equipment according to claim 1, characterized in that, The second roller assembly (3) includes a second upper roller (31), a second lower roller (32), a second upper pressure roller (33), and a second lower pressure roller (34). The second upper roller (31) and the second lower roller (32) are arranged in parallel at intervals along a second direction. The second upper pressure roller (33) is arranged parallel to the second upper roller (31) and is attached to the second upper roller (31). The second lower pressure roller (34) is arranged parallel to the second lower roller (32) and is attached to the second lower roller (32). The second upper roller (31) and the second lower roller (32) heat the first surface of the composite film (100).

3. The on-line heat treatment equipment according to claim 2, characterized in that, The third roller assembly (4) includes a third upper roller (41), a third lower roller (42), a third upper pressure roller (43), and a third lower pressure roller (44). The third upper roller (41) and the third lower roller (42) are arranged in parallel at intervals along the second direction. The third upper pressure roller (43) is arranged parallel to the third upper roller (41) and is attached to the third upper roller (41). The third lower pressure roller (44) is arranged parallel to the third lower roller (42) and is attached to the third lower roller (42). The third upper roller (41) and the third lower roller (42) heat the second surface of the composite film (100).

4. The online heat treatment equipment according to claim 3, characterized in that, The second lower roller (32), the third lower roller (42), the second upper roller (31), and the third upper roller (41) are arranged in sequence along the movement path of the composite film (100).

5. The online heat treatment equipment according to claim 3, characterized in that The second upper roller (31), the second lower roller (32), the third upper roller (41), and the third lower roller (42) are hollow inside and are supplied with a heat medium. The temperatures of the heat medium supplied to the second upper roller (31) and the second lower roller (32) are the same, and the temperatures of the heat medium supplied to the third upper roller (41) and the third lower roller (42) are the same.

6. The on-line heat treatment equipment according to claim 1, wherein The first roller assembly includes a first upper roller (12), a first lower roller (11), a first upper pressure roller (14) and a first lower pressure roller (13). The first upper roller (12) and the first lower roller (11) are arranged in a staggered manner along a first direction, and the first upper roller (12) and the first lower roller (11) are arranged in parallel at intervals. The first upper pressure roller (14) is arranged in parallel with the first upper roller (12) and is attached to the first upper roller (12), and the first lower pressure roller (13) is arranged in parallel with the first lower roller (11) and is attached to the first lower roller (11).

7. The online heat treatment equipment according to claim 1, characterized in that, The heat treatment oven (2) includes a box body (21) and a transmission structure. The transmission structure is located in the box body (21), and the transmission structure is used to traction the composite film (100) from the first heat treatment structure (1).

8. The online heat treatment equipment according to claim 7, characterized in that, The transmission structure includes a plurality of driving rollers (22) and a plurality of driven rollers (23) arranged in parallel.

9. The online heat treatment equipment according to claim 1, characterized in that, An electric heater is arranged in the heat treatment oven (2), and the temperature of the electric heater can be adjusted.

10. The on-line heat treatment equipment according to claim 1, characterized in that, A thermometer is arranged in the heat treatment oven (2).

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