Waste heat recycling type film laminating equipment

Abstract

The utility model discloses waste heat recycling type film laminating equipment, which relates to the technical field of film laminating machines, and is characterized in that an equipment body comprises a preheating chamber, a heating chamber, a heat preservation chamber, a hot pressing roller and a heat recovery chamber which are sequentially arranged along the conveying direction of a film, and a plurality of heat conduction rollers which are respectively propped against the film and fabric are arranged in the heat recovery chamber; the two width sides of the preheating chamber are fixedly connected with heat conduction pipes communicating with the preheating chamber, the ends, away from the heat recovery chamber, of the heat conduction pipes are fixedly connected to the side wall in the width direction of the preheating chamber and communicate with the preheating chamber, and the heat conduction pipes drive hot air in the heat recovery chamber to enter the preheating chamber. According to the utility model, the temperature in the fabric and the film can be quickly guided out through the plurality of heat conduction rollers and dissipated in the heat recovery chamber, and the hot air in the heat recovery chamber is guided into the preheating chamber through the two heat conduction pipes which are obliquely arranged upwards, so that the film is preheated before entering the heating chamber; and therefore, the energy consumption of the equipment body during processing is reduced by recycling the waste heat.

Description

Technical Field

[0001] The utility model relates to the technical field of film laminating machines, and more specifically, to a waste heat recycling film laminating device. Background Art

[0002] Laminating equipment can be divided into two categories: instant laminating machines and pre-coating laminating machines. Laminating equipment is a kind of equipment widely used in the packaging industry. It is mainly used to cover a layer of protective film on the surface of paper, board, cloth, etc. The cloth laminating process is the process of applying a film to the surface of the cloth through a laminating machine, thereby improving the waterproofness, wear resistance and stain resistance of the cloth.

[0003] The laminating machine mainly applies film to fabrics by heat pressing. However, the temperature of the film after heat pressing is very high, and the residual heat on the film cannot be recycled. This not only causes heat loss, but may also cause the film to overheat and stick to adjacent fabrics when it is rolled up, affecting the use effect of the laminating machine and wasting resources.

[0004] Therefore, new solutions need to be proposed to solve this problem. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a waste heat recovery type laminating device to solve the problem that the laminating machine cannot recycle the waste heat on the film during the processing.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: the waste heat recycling type coating equipment includes an equipment body, which includes a preheating chamber, a heating chamber, a holding chamber, a hot pressing roller and a heat recovery chamber arranged in sequence along the conveying direction of the film, and the heat recovery chamber is provided with a plurality of heat-conducting rollers respectively abutting against the film and the fabric, and the heat recovery chamber is fixedly connected with heat-conducting pipes interconnected with the two sides of the width of the heat recovery chamber, and the end of the heat-conducting pipe away from the heat recovery chamber is fixedly connected to the side wall in the width direction of the preheating chamber and is interconnected with the preheating chamber, and the heat-conducting pipe drives the hot air in the heat recovery chamber into the preheating chamber.

[0007] The utility model is further configured as follows: the heating chamber is fixedly connected to the top of the preheating chamber, and the heat conducting pipe is arranged to be tilted upward along a side close to the heating chamber.

[0008] The utility model is further configured as follows: a heat-conducting layer is fixedly connected to the inner wall of the heat-conducting pipe, the length of the heat-conducting roller is greater than the length of the heat recovery chamber, and the two ends of the heat-conducting roller are rotatably connected to the heat-conducting layers in the heat-conducting pipes on both sides of the heat recovery chamber.

[0009] The utility model is further configured as follows: the temperature in the heating chamber is 5° C. lower than the melting point of the film, and the heating temperature of the hot pressing roller is 5° C. higher than the melting point of the film.

[0010] The utility model is further configured as follows: the equipment body is provided with a plurality of guide rollers for changing the conveying direction of the film and the fabric, and the heating time of the film in the heating chamber is increased after the conveying direction of the film is changed multiple times by the guide rollers.

[0011] The utility model is further configured as follows: an output roller for rolling film is arranged in the preheating chamber, and an output roller for rolling fabric is arranged at an upper side of the hot pressing roller close to the heating chamber.

[0012] The utility model is further configured as follows: the insulation chamber is located between the heating chamber and the hot pressing roller and is arranged obliquely along the conveying direction of the film; the opening of the insulation chamber for outputting the film is located below the output roller 2 near one end of the heating chamber.

[0013] The utility model is further configured as follows: the hot pressing roller, the plurality of heat-conducting rollers and the heat-conducting layer are all made of copper material, and the preheating chamber, the heating chamber, the insulation chamber and the heat recovery chamber are all made of stainless steel material.

[0014] In summary, the utility model has the following beneficial effects: copper material has good thermal conductivity, so that when a plurality of heat-conducting rollers made of copper material are against the fabric and film after hot pressing, they can quickly conduct the temperature in the fabric and film and dissipate it in the heat recovery chamber, thereby reducing the temperature of the film and avoiding the situation in which the film is overheated and sticks to the adjacent fabric during winding. The density of high-temperature hot air is low, so that the high-temperature hot air will gather at the top of the heat recovery chamber. Through the two heat-conducting pipes connected to the preheating chamber and arranged upward, the high-temperature hot air in the heat recovery chamber can flow to the preheating chamber, thereby realizing preheating of the film before entering the heating chamber. Through the guide rollers in the heating chamber, the heating time of the film in the heating chamber is increased, so that the preheated film can quickly heat up after entering the heating chamber. The heating efficiency and heating temperature of the heating chamber can be reduced according to the melting point of the film, thereby reducing energy consumption. The insulation chamber made of stainless steel can effectively reduce the temperature loss of the heated film during transportation, thereby reducing the heating temperature of the heating roller according to the temperature of the heated film, further reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 The utility model is a cross-sectional view Figure 1 ;

[0017] Figure 3 The utility model is a cross-sectional view Figure 2 ;

[0018] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0019] In the figure: 1. Equipment body; 2. Preheating chamber; 3. Heating chamber; 4. Insulation chamber; 5. Hot pressing roller; 6. Heat recovery chamber; 7. Heat transfer roller; 8. Heat transfer pipe; 9. Heat transfer layer; 10. Guide roller; 11. Output roller one; 12. Output roller two; 13. Through groove. DETAILED DESCRIPTION

[0020] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] Embodiment: The waste heat recycling type coating equipment, such as Figure 1-Figure 4 As shown, the device body 1 includes a preheating chamber 2, a heating chamber 3, a hot pressing roller 5, a heat preservation chamber 4 and a heat recovery chamber 6 which are arranged in sequence along the conveying direction of the film. A rectangular heat-conducting pipe 8 is fixedly connected to both sides of the width of the heat recovery chamber 6. One end of the heat-conducting pipe 8 away from the heat recovery chamber 6 is fixedly connected to the side wall of the preheating chamber 2 in the width direction. The side walls of the heat recovery chamber 6 along the width direction and the side walls of the preheating chamber 2 along the width direction are penetrated by through grooves 13 which are interconnected with the heat-conducting pipe 8. The heat recovery chamber 6 and the preheating chamber 2 are interconnected through the two heat-conducting pipes 8.

[0022] like Figure 1-Figure 4As shown, a plurality of heat-conducting rollers 7 are rotatably connected in the heat recovery chamber 6, which are respectively against the film and fabric after heat pressing. The heat-conducting rollers 7 are made of copper material, which has good thermal conductivity. The temperature of the plurality of heat-conducting rollers 7 is lower than the temperature of the fabric and film after heat pressing, so that when the plurality of heat-conducting rollers 7 are against the fabric and film, the high temperature in the fabric and film will be transferred to the plurality of heat-conducting rollers 7. After absorbing the temperature in the fabric and film, the plurality of heat-conducting rollers 7 make their temperature higher than the temperature in the heat recovery chamber, so that the surfaces of the plurality of heat-conducting parts 7 will dissipate the heat absorbed inside to the heat recovery chamber 6 when rotating, thereby achieving the effect of cooling the film and fabric after heat pressing, avoiding the situation that the film is overheated and sticks to the adjacent fabric when winding, and at the same time through the plurality of heat-conducting rollers 7 further extrude the fabric and the film, thereby improving the composite effect of the fabric and the film. An output roller 11 is provided in the preheating chamber 2, and the output roller 11 is used to convey the rolled film. Both ends of the output roller 11 pass through the through grooves 13 on both sides of the preheating chamber 2 and are rotatably connected to the heat conducting pipe 8. The heating chamber 3 is fixedly connected to the top of the preheating chamber 2. The heat conducting pipe 8 is tilted upward along the side close to the heating chamber 3. The density of the high-temperature hot air is low, so that the high-temperature hot air emitted by several heat conducting rollers 7 will float on the top of the heat recovery chamber 6, so that the two heat conducting pipes 8 tilted upward can guide the high-temperature hot air in the heat recovery chamber 6 to flow into the preheating chamber 2, thereby realizing the effect of heating the film in the preheating chamber 2 after recovering the waste heat on the hot-pressed fabric and film.

[0023] like Figure 1 , Figure 2 and Figure 4 As shown, a heat-conducting layer 9 made of copper is provided in the heat-conducting tube 8, and the heat-conducting layer 9 is fixedly connected to the inner wall of the heat-conducting tube 8 by a welding process. The length of the heat-conducting roller 7 is greater than the length of the heat recovery chamber 6, and the two ends of the heat-conducting roller 7 are respectively rotatably connected to the heat-conducting layer 9 in the heat-conducting tube 8 on both sides of the heat recovery chamber 6, so that the high temperature absorbed in the heat-conducting roller 7 can be quickly transferred to the heat-conducting layer 9, further accelerating the speed of guiding the high temperature in the heat recovery chamber 6 into the preheating chamber 2, improving the effect of heating the film in the preheating chamber 2, and heating the film in the preheating chamber 2 so that the film can be quickly heated after being transported to the heating chamber 3, thereby reducing the power of the heating chamber 3, thereby reducing the energy consumption of the heating chamber 3.

[0024] like Figure 1 and Figure 2As shown, the device body 1 is provided with a plurality of guide rollers 10 for changing the conveying direction of the film and the fabric. The guide rollers 10 are made of aluminum alloy material. The aluminum alloy material has the characteristics of being light, high-strength and high-temperature resistant. While ensuring the structural stability, the production cost of the device body 1 is reduced. The plurality of guide rollers 10 arranged in the heating chamber 3 increase the heating time of the film in the heating chamber 3 after changing the conveying direction of the film multiple times. The temperature in the heating chamber 3 is set to be 5°C lower than the melting point of the film, and the heating temperature of the hot pressing roller 5 is set to be 5°C higher than the melting point of the film, so that the film is heated and hot-melted when it is conveyed to the hot pressing roller 5 and fixed together with the fabric, thereby reducing the heating temperature in the heating chamber 3 according to the melting point of the film, further reducing the power of the heating chamber 3 and saving energy.

[0025] like Figure 1 and Figure 2 As shown, the hot pressing roller 5 is rotatably connected to an output roller 2 12 near the upper side of the heating chamber 3, and the output roller 2 12 is used to convey the rolled fabric. The insulation chamber 4 is located between the heating chamber 3 and the hot pressing roller 5 and is inclined along the conveying direction of the film. The opening of the insulation chamber 4 for the film output is located below the output roller 2 12 near one end of the heating chamber 3. The insulation chamber 4 prevents the heated film from losing temperature during transportation, so that the heated fabric can be quickly melted when the heat of the hot pressing roller 5 is heated, so that the heating temperature of the hot pressing roller 5 can be reduced according to the melting point of the film, thereby reducing the energy consumption of the hot pressing roller 5. The preheating chamber 2, the heating chamber 3, the insulation chamber 4, the heat recovery chamber 6 and the heat pipe 8 are all made of stainless steel. The stainless steel material has good high temperature resistance and poor thermal conductivity, so that the temperature in the preheating chamber 2, the heating chamber 3, the insulation chamber 4, the heat recovery chamber 6 and the heat pipe 8 is not easy to lose, and at the same time, the stable operation of the equipment body 1 in a high temperature environment is guaranteed.

[0026] Working principle: A number of heat-conducting rollers 7 are used to conduct the residual heat in the fabric and film and dissipate it into the heat recovery chamber 6 when they are in contact with the hot-pressed fabric and film. The hot air in the heat recovery chamber 6 is guided to the preheating chamber 2 by two heat-conducting rollers 7 inclined upward and the heat-conducting layer 9 inside them. The film can be preheated by the recycled residual heat before being conveyed to the heating chamber 3, so that the film entering the heating chamber 3 can be quickly heated up, thereby reducing the energy consumption of the heating chamber 3. The temperature in the heating chamber 3 is set to be 5°C lower than the melting point of the film. The temperature loss of the heated fabric during transportation is prevented by the insulation chamber 4. The heating temperature of the hot pressing roller 5 is set to be 5°C higher than the melting point of the film, so that the film is heated and melted when it is conveyed to the hot pressing roller 5 and fixed to the fabric, thereby further reducing the energy consumption of the heating chamber 3 and the hot pressing roller 5.

[0027] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A waste heat recycling type film coating device, comprising a device body (1), characterized in that: The equipment body (1) comprises a preheating chamber (2), a heating chamber (3), a heat preservation chamber (4), a hot pressing roller (5) and a heat recovery chamber (6) which are arranged in sequence along the conveying direction of the film. The heat recovery chamber (6) is provided with a plurality of heat-conducting rollers (7) which are respectively against the film and the fabric. Heat-conducting pipes (8) which are interconnected are fixedly connected to both sides of the width of the heat recovery chamber (6). One end of the heat-conducting pipe (8) which is away from the heat recovery chamber (6) is fixedly connected to the side wall of the preheating chamber (2) in the width direction and is interconnected with the preheating chamber (2). The heat-conducting pipe (8) drives the hot air in the heat recovery chamber (6) into the preheating chamber (2).

2. The waste heat recycling type film coating equipment according to claim 1 is characterized in that: The heating chamber (3) is fixedly connected to the top of the preheating chamber (2), and the heat conducting pipe (8) is arranged to be inclined upward along a side close to the heating chamber (3).

3. The waste heat recycling type film coating equipment according to claim 2 is characterized in that: The inner wall of the heat-conducting pipe (8) is fixedly connected with a heat-conducting layer (9); the length of the heat-conducting roller (7) is greater than the length of the heat recovery chamber (6); and the two ends of the heat-conducting roller (7) are rotatably connected to the heat-conducting layer (9) in the heat-conducting pipe (8) on both sides of the heat recovery chamber (6).

4. The waste heat recycling type film coating equipment according to claim 1 is characterized in that: The temperature in the heating chamber (3) is 5°C lower than the melting point of the film, and the heating temperature of the hot pressing roller (5) is 5°C higher than the melting point of the film.

5. The waste heat recycling type film coating equipment according to claim 1 is characterized in that: The device body (1) is provided with a plurality of guide rollers (10) for changing the conveying direction of the film and the fabric. The heating time of the film in the heating chamber (3) is increased by changing the conveying direction of the film multiple times through the guide rollers (10).

6. The waste heat recycling type film coating equipment according to claim 1 is characterized in that: The preheating chamber (2) is provided with an output roller (11) for rolling the film, and the hot pressing roller (5) is provided with an output roller (12) for rolling the fabric at an angle above and close to the heating chamber (3).

7. The waste heat recycling type film coating equipment according to claim 6 is characterized in that: The insulation chamber (4) is located between the heating chamber (3) and the hot pressing roller (5) and is arranged obliquely along the conveying direction of the film. The opening of the insulation chamber (4) for outputting the film is located below the second output roller (12) close to one end of the heating chamber (3).

8. The waste heat recycling type film coating equipment according to claim 3 is characterized in that: The hot pressing roller (5), the plurality of heat-conducting rollers (7) and the heat-conducting layer (9) are all made of copper material, and the preheating chamber (2), the heating chamber (3), the insulation chamber (4) and the heat recovery chamber (6) are all made of stainless steel material.

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