Main bearing heat preservation unit for polyimide film production line and casting machine heat preservation box formed by main bearing heat preservation unit

Abstract

The utility model discloses a main load-bearing heat preservation unit for a polyimide film production line and a casting machine heat preservation box body formed by the main load-bearing heat preservation unit, the main load-bearing heat preservation unit comprises a main supporting frame body, the main supporting frame body comprises an outer-layer frame body, an inner-layer frame body and a main supporting frame connecting the inner-layer frame body and the outer-layer frame body, and the outer-layer frame body and / or the inner-layer frame body are / is composed of an outer sealing plate, a heat preservation plate and an inner sealing plate. And a hollow cavity structure is integrally formed. According to the main bearing heat preservation unit, a two-stage broken bridge heat insulation mode is adopted, and a cavity formed by plates is filled with heat preservation cotton, so that the inner side and the outer side of a wall plate of the box body are not in direct contact, the box body is divided into at least two different temperature sections, and internal heat is prevented from being transmitted to the outside to cause overheating of the outer surface of the box body; the inner-layer plate and the outer-layer plate simultaneously adopt an interlayer heat insulation mode containing a heat preservation layer, double-pole heat insulation is achieved, the overall mechanical property is better, cost is lower, and operation, installation and replacement are faster and more convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of film manufacturing equipment, and particularly relates to a main load-bearing heat preservation unit for a polyimide film production line, which is suitable for a box body of a casting machine or a transverse drawing machine. BACKGROUND

[0002] The casting machine and the transverse drawing machine are necessary equipment used in a polyimide film production line. Based on the need for chemical film making, the outer side of the machine body needs to have good heat preservation and sealing functions. Both the casting machine and the transverse drawing box need to be made of heat preservation plates to effectively insulate and preserve heat.

[0003] In the prior art, a steel plate or other metal plate is usually attached to high-efficiency heat preservation materials as the side wall of the box body, which is usually integrally arranged. Since the steel belt casting machine has a large volume and is thick and heavy, it needs a larger space for installation. If local damage occurs in the equipment, the entire side wall has to be replaced, or other high-cost designs have to be used, which are not conducive to the promotion and application in the current market. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem of providing a main load-bearing heat preservation unit structure for a polyimide film production line, which can realize high-performance modular design, factory prefabrication, on-site assembly, on-site replacement, no site restrictions, convenient maintenance, and convenient adjustment.

[0005] The utility model provides a main load-bearing heat preservation unit for a polyimide film production line, which comprises a main support frame, the main support frame comprises an outer frame, an inner frame, and a main support frame connecting the inner and outer frames, the outer frame and / or the inner frame are composed of an outer sealing plate, a heat insulation plate, and an inner sealing plate, and at least one heat preservation layer is filled in the hollow cavity. The inner and outer plates adopt a three-layer heat preservation mode, the entire frame adopts a three-layer heat preservation mode, and a double-stage broken bridge heat insulation mode is achieved.

[0006] Further, an internal support beam is arranged in the hollow cavity, and the internal support beam is arranged on one side of the inner frame, or on one side of the outer frame, or on both sides.

[0007] Further, interval support frames are arranged in the hollow cavity to support the main support frame.

[0008] The above two modes can strengthen the load bearing of the entire frame.

[0009] The main support frame is provided with a reserved port, the reserved port is composed of a support frame, a reinforcing member is arranged on one side of the inner frame or / and the outer frame of the reserved port support frame, and the reinforcing member is connected with the inner sealing plate of the inner frame or / and the outer frame.

[0010] The reserved opening extends outward to form an external connecting part, and an insulation layer or insulation material is provided between the external connecting part and the outer frame.

[0011] The reserved opening location also needs to take into account the heat insulation issue. The reinforcement components must be connected to the inner sealing plate and not in contact with the outer sealing plate. The components extending outward also need to be covered with heat insulation material to achieve the heat insulation effect.

[0012] The main support frame is arranged around the main load-bearing insulation unit, and the outer side of the main support frame is covered with a buffer plate and / or a heat insulation plate.

[0013] The main support frame is a channel steel or an I-beam, and / or the internal support beam and the reserved opening reinforcement are I-beams, channel steel or angle iron, and / or the outer sealing plate is a stainless steel plate, and / or the inner sealing plate is an iron plate or a stainless steel plate, and the heat insulation board is a calcium silicate board.

[0014] The dimensions of the internal support beam and the reserved opening reinforcement are smaller than those of the main support frame.

[0015] The hollow cavity is equipped with a heat insulation board, and the heat insulation layer is disposed on both sides of the heat insulation board.

[0016] The box wall panels are composed of main load-bearing insulation units, and a buffer plate is set between two interconnected main load-bearing insulation units.

[0017] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0018] The main load-bearing and heat-insulating unit for polyimide film production lines is generally used for the upper and lower walls of the housing of casting machines or horizontal stretching machines to achieve overall load-bearing and heat insulation functions. The inner and outer wall panels adopt a three-layer insulation board method, and the entire main support frame adopts a three-layer thermal break insulation method, thereby achieving a double-stage thermal break insulation. The cavity of the main support frame is filled with insulation cotton, so that the inner and outer walls of the housing are not in direct contact. Based on the principle of thermal break insulation, it prevents internal heat from being transferred to the outside and causing overheating of the outer surface of the housing. Moreover, compared with the existing structure, this solution has better mechanical performance and lower cost, while also ensuring the functional requirements such as sealing of the casting machine housing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main load-bearing insulation unit for a polyimide film production line according to this utility model.

[0020] Figure 2 yes Figure 1 The diagram shows a cross-sectional view of the main load-bearing insulation unit used in a polyimide film production line.

[0021] Figure 3 yes Figure 1 The diagram shows a cross-sectional view of another type of main load-bearing insulation unit used in a polyimide film production line.

[0022] Figure 4 This is a schematic diagram of an insulation board structure containing two insulation units.

[0023] Figure 5 This is a structural diagram of the junction of two adjacent insulation units.

[0024] Figure 6 This is a schematic diagram of the structure of an ultra-long insulation unit.

[0025] Figure 7 for Figure 6 A schematic diagram of the internal reinforcing ribs of the ultra-long insulation unit. Detailed Implementation

[0026] This utility model provides a main load-bearing insulation unit for a polyimide film production line, and a top wall of an insulation box composed of the main load-bearing insulation unit. Furthermore, it provides a casting machine box structure including the main load-bearing insulation unit, forming a modular design of the box insulation board. This enables factory prefabrication of units, facilitating subsequent operations such as assembly, installation, and replacement, effectively reducing costs, and further improving thermal insulation and overall machine efficiency.

[0027] Please see Figures 1 to 3 The present invention first provides a main load-bearing insulation unit 1, which includes a main support frame 10. The main support frame 10 is provided with a reserved opening 2 to facilitate the installation of auxiliary components. The main support frame 10 is a three-dimensional structure, and a hollow cavity 100 is formed inside it. The hollow cavity 100 is filled with an insulation layer 20 or other insulation structures are arranged inside it.

[0028] Please see Figure 2 This is one embodiment of the main support frame 10. The main support frame 10 includes a hollow frame composed of a main support frame 13. An outer frame 11 and an inner frame 12 are provided on both sides of the hollow frame. The inner and outer frame layers are connected by the main support frame 13. The main support frame 13 is arranged around the frame to form a hollow cavity 100. Multiple insulation layers 20 can be provided inside the hollow cavity. The insulation layers can be insulation cotton or other insulation materials, preferably, for example, aluminum silicate insulation cotton, which has a lower thermal conductivity than air. Alternatively, a heat insulation board can be added inside the hollow cavity to form a thermal break structure with two or more sections. The insulation layers can be arranged on both sides of the heat insulation board, and the structural components do not directly contact each other, effectively blocking the transfer of heat. This can achieve better heat insulation effect, and the relevant materials and processes are relatively mature, making the manufacturing cost of this solution low.

[0029] The hollow cavity of the main support frame 10 is equipped with an internal support beam 14 to form a load-bearing frame with the main support frame. The reserved openings are for installing different external components. The internal support beam 14 needs to consider the overall layout and weight of these external components and can be located on one side of the inner frame, one side of the outer frame, or both sides simultaneously. The internal support beam 14 is typically lower than the main support frame 13, which effectively reduces the overall weight and cost while providing sufficient support. Alternatively, a support beam or support frame with the same load-bearing capacity as the main support frame 13 can be used as needed.

[0030] The reserved opening 2 can be several air outlets / inlets, or it can be used to install other external equipment. It is composed of a support frame 21, a support rod, or a support plate. The reserved opening support frame 21 is provided with a reinforcement 22 on one side of the inner frame and / or the outer frame, which is shown as an angle iron. To avoid heat conduction of the reinforcement 22 and the reserved opening support frame 21, a heat insulation measure, such as a heat insulation board or heat insulation layer 25, is provided in the middle when they are connected to the inner frame 11 and / or the outer frame, or a heat insulation gap is reserved in the middle. The reserved opening 2 is usually extended outward and has an outer connecting part 23, that is, the outer support frame. Considering the heat insulation measures when it extends to the outside, a heat insulation measure, such as a heat insulation layer or covering with heat insulation material, is provided between the outer connecting part 23 and the outer frame 11. In this embodiment, the main support frame 13 is a channel steel, and the internal support beam and the reserved opening reinforcement can be an I-beam, a channel steel, or an angle iron. The entire main support frame 10 is a three-dimensional frame composed of these components. The main support frame 13 is set around the frame to form a sturdy support and load-bearing mechanism.

[0031] Please see Figure 3 As shown, this is another preferred embodiment of the present invention, characterized in that the outer frame 11 and / or the inner frame 12 are multi-layered thermal insulation structures. The outer frame 11 and / or the inner frame 12 are composed of an outer sealing plate 101, a heat insulation plate 102, and an inner sealing plate (103). The heat insulation plate 102 can be a calcium silicate board or other thermal insulation materials. Other structures are the same as described above. Figure 2 The embodiments shown are basically the same. The reinforcement 22 of the reserved opening support frame 21 can be directly connected to the inner sealing plate without adding additional heat insulation measures, so as to achieve the purpose of heat insulation.

[0032] This utility model also provides an insulation board composed of insulation units, such as Figure 4 As shown, it includes two interconnected insulation units 1, and is combined with Figure 5 As shown, a buffer plate 15 is provided on the adjacent side of the two interconnected insulation units 1, that is, the non-metallic plate is used to separate them, so as to achieve the functions of buffering, heat insulation and reinforcement.

[0033] Please see Figure 6 As shown, it is a structural schematic diagram of an ultra-long insulation unit. When ultra-long materials are used, the middle position or the position that needs to bear the load is provided with the same structure as the main support frame 13 as a spacer support frame 16 to ensure that the whole has the strongest load-bearing effect. Figure 7 The diagram shows the arrangement of the spacer support frame 16.

[0034] In summary, the main load-bearing and heat-insulating unit of this utility model for a casting machine is generally used for the upper and lower walls of the casting machine housing to achieve overall load-bearing and heat-insulating functions. It adopts a double-stage thermal break insulation method, with the panels using a three-layer insulation method and the entire frame using a three-layer insulation method, achieving a double-stage thermal break insulation. The cavity of the main support frame is filled with insulation cotton, ensuring that the inner and outer sides of the housing walls do not directly contact each other and are divided into at least two different temperature zones, preventing internal heat from being transferred to the outside and causing overheating of the outer surface of the housing. Furthermore, compared with existing structures, this solution has better mechanical performance and lower cost, while also ensuring the sealing and other functional requirements of the casting machine housing.

Claims

1. A main load-bearing insulation unit (1) for a polyimide film production line, characterized in that: It includes a main support frame (10), which includes a hollow frame composed of a main support frame (13). An outer frame (11) and an inner frame (12) are provided on both sides of the hollow frame. The outer frame (11) and / or the inner frame (12) of the main support frame are not single-layer boards or are composed of an outer sealing plate (101), a heat insulation plate (102) and an inner sealing plate (103), forming a hollow cavity (100) structure.

2. The main load-bearing insulation unit (1) for a polyimide film production line as described in claim 1, characterized in that: The hollow cavity (100) is provided with an internal support beam (14), which is located on one side of the inner frame (12), or on one side of the outer frame (11), or on both sides.

3. The main load-bearing insulation unit (1) for a polyimide film production line as described in claim 1 or 2, characterized in that: The hollow cavity (100) is provided with spaced support frames (16) to provide spaced support for the main support frame (10).

4. The main load-bearing insulation unit for a polyimide film production line as described in claim 3, characterized in that: The main support frame (10) is provided with a reserved opening (2), which is composed of a support frame (21). The support frame (21) is provided with a reinforcing member (22) on one side of the inner frame and / or the outer frame. The reinforcing member (22) is connected to the inner sealing plate (103) of the inner frame and / or the outer frame.

5. The main load-bearing insulation unit for a polyimide film production line as described in claim 4, characterized in that: The reserved opening extends outward to form an external connecting part (23), and an insulation layer or insulation material is provided between the external connecting part (23) and the outer frame (11).

6. The main load-bearing insulation unit for a polyimide film production line as described in claim 5, characterized in that: The main support frame (13) is arranged around the main load-bearing and heat-insulating unit (1) for the polyimide film production line, and the outer side of the main support frame (13) is covered with a buffer plate or a heat insulation plate.

7. The main load-bearing insulation unit for a polyimide film production line as described in claim 2, characterized in that: The hollow cavity (100) is provided with spaced support frames (16) to provide spaced support for the main support frame (10). The main support frame (10) is provided with a reserved opening (2), which is composed of a support frame (21). The support frame (21) is provided with a reinforcing member (22) on one side of the inner frame and / or the outer frame. The reinforcing member (22) is connected to the inner sealing plate (103) of the inner frame and / or the outer frame. The reserved opening extends outward to have an external connecting part (23), and an insulation layer or insulation material is provided between the external connecting part (23) and the outer frame (11); The main support frame (13) is set around the main load-bearing heat insulation unit (1) for the polyimide film production line, and the outer side of the main support frame (13) is covered with a buffer plate or heat insulation plate. The main support frame (13) is a channel steel or an I-beam, and / or the internal support beam (14) and the reserved opening reinforcement (22) are I-beams, channel steel or angle iron, and / or the outer sealing plate (101) is a stainless steel plate, and / or the inner sealing plate (103) is an iron plate or a stainless steel plate, and the heat insulation board is a calcium silicate board.

8. The main load-bearing insulation unit for a polyimide film production line as described in claims 1, 2, 4, 5, 6, or 7, characterized in that: The hollow cavity (100) is filled with at least one insulation layer, and / or the hollow cavity is provided with a heat insulation board, and the heat insulation board is provided with insulation layers on both sides.

9. The main load-bearing insulation unit for a polyimide film production line as described in claim 2 or 7, characterized in that: The dimensions of the internal support beam (14) and the reserved opening reinforcement (22) are smaller than those of the main support frame (13).

10. A casting machine insulation box composed of a main load-bearing insulation unit for a polyimide film production line, characterized in that: The box wall panel comprises a main load-bearing and heat-insulating unit for a polyimide film production line as described in any one of claims 1 to 8, and a buffer plate (15) is provided between two interconnected main load-bearing and heat-insulating units for a polyimide film production line.

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