Laminating forming equipment of PP composite sheet glue-free composite folder

Abstract

The utility model discloses a kind of laminated molding equipment of PP composite sheet glueless composite folder, it is related to laminated molding equipment technical field, the scheme includes base, the upper surface one side of base is fixedly installed with side frame, the side of side frame is installed with multiple groups for conveying PP composite sheet feeding mechanism in turn, heating mechanism is installed on the outer surface of side frame, cooperating with feeding mechanism, waste heat utilization mechanism is installed outside heating mechanism, cooperating with feeding mechanism, the utility model is set up feeding mechanism, can make that sheet uniform feeding, subsequent sheet processing can not be influenced because of the tension change when sheet unwinding, sheet laminating effect can be improved, and by setting heating mechanism and waste heat utilization mechanism, surplus heat overflowed in heating mechanism can be conveyed to feeding roller and heating feeding roller, sheet can be preheated.

Description

Technical Field

[0001] This utility model relates to the technical field of lamination molding equipment, specifically to a lamination molding equipment for glue-free composite folders made of PP composite sheet. Background Technology

[0002] PP composite folders are widely used in office and document storage fields due to their advantages such as being lightweight, wear-resistant, and chemically resistant. In the production process of PP composite folders, lamination is a key step, requiring the bonding of multiple layers of PP substrate (such as PP film and PP foam layers) through heating and pressure to form a folder substrate with specific thickness and strength.

[0003] In existing PP composite folder lamination equipment, multi-layer PP substrates are directly heated and laminated after unwinding. However, uneven tension is prone to occur when unwinding multi-layer PP substrates. The heated sheets are easily stretched due to tension changes during feeding, which affects the lamination effect. The heat emitted by the heating device cannot be recovered and reused, resulting in waste. The cooling mechanism after lamination is mostly a single air cooling or water cooling, which has low cooling efficiency and uneven cooling, which can easily lead to shrinkage and deformation of the substrate, further reducing the product qualification rate. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a lamination molding equipment for adhesive-free composite folders made of PP composite sheets, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a lamination molding equipment for glue-free composite folders of PP composite sheets, including a base, a side frame fixedly installed on one side of the upper surface of the base, a plurality of feeding mechanisms for conveying PP composite sheets sequentially installed on one side of the side frame, a heating mechanism cooperating with the feeding mechanism installed on the outer surface of the side frame, a waste heat utilization mechanism cooperating with the feeding mechanism installed outside the heating mechanism, a pressing mechanism for laminating PP composite sheets installed on the outer surface of the side frame, a cooling mechanism installed on the outer surface of the side frame, and an operating table installed on one side of the upper surface of the base;

[0006] The feeding mechanism includes two symmetrically arranged feeding rollers, both of which are rotatably connected to the side frame via bearings.

[0007] Preferably, the heating mechanism includes two symmetrically arranged heating rollers, both of which are rotatably connected to the side frame via bearings. Each heating roller is equipped with an electric heating wire, which is connected to an external power source via a rotary joint to generate heat and thus heat the sheet.

[0008] Preferably, the waste heat utilization mechanism includes an insulation box located outside the heating roller. One side of the insulation box is fixedly connected to a side frame. A first heat exchange tube is fixedly connected through the inside of the insulation box. A centrifugal fan is fixedly installed on one side of the outer surface of the side frame. A second heat exchange tube is rotatably connected through the inside of the feeding roller. One end of the first heat exchange tube and the second heat exchange tube are respectively connected to the air inlet and air outlet of the centrifugal fan through flexible hoses, which facilitates the recovery and utilization of excess heat, realizes waste heat utilization, and can improve the processing effect to a certain extent.

[0009] Preferably, the pressing mechanism includes two symmetrically arranged pressure rollers, both of which are rotatably connected to the side frame via bearings, facilitating the lamination of the sheet material.

[0010] Preferably, the cooling mechanism includes two symmetrically arranged cooling rollers, both of which are rotatably connected to the side frame via bearings. Rotary joints are fixedly installed at both ends of the cooling rollers, and the rotary joints are connected to external cooling equipment, thereby enabling the cooling of the laminated product.

[0011] Preferably, two horizontal tubes are symmetrically fixedly connected to one side of the outer surface of the side frame. Multiple nozzles are sequentially and obliquely fixedly installed on the outer surface of the horizontal tubes. A blower that cooperates with the horizontal tubes is fixedly installed on the upper surface of the base. A protective box is installed on the outer surface of the side frame. The outer surface of the protective box has an opening, and the front side of the protective box is rotatably connected to a door via a hinge, which facilitates air cooling of the product and further improves the cooling and shaping effect.

[0012] Preferably, the feeding roller, heating roller, pressure roller, and cooling roller are all driven by external motors, which facilitates the rotation of the rollers in each mechanism.

[0013] This utility model provides a lamination molding device for adhesive-free composite folders made of PP composite sheets. It has the following beneficial effects:

[0014] This lamination equipment for adhesive-free PP composite sheet folders features a feeding mechanism that ensures uniform sheet feeding, preventing tension variations during unwinding from affecting subsequent sheet processing and improving lamination results. Furthermore, a heating and waste heat recovery mechanism transfers excess heat from the heating mechanism to the feeding roller, preheating the sheet and increasing its temperature before entering the heating roller. This reduces the temperature load on the sheet from the heating roller, lowers the heating power consumption of the heating element, and prevents thermal stress deformation of the substrate due to excessive temperature differences. The cooling mechanism allows for simultaneous water and air cooling, achieving composite cooling and rapid, uniform cooling of the substrate, effectively reducing shrinkage and deformation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a partial structural schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of this utility model from another angle.

[0018] In the diagram, 1. Base; 2. Side frame; 3. Feeding roller; 4. Heating roller; 5. Insulation box; 6. First heat exchange tube; 7. Centrifugal fan; 8. Second heat exchange tube; 9. Pressure roller; 10. Cooling roller; 11. Horizontal tube; 12. Nozzle; 13. Blower; 14. Protective box; 15. Operating table. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example:

[0021] like Figures 1 to 3 As shown, a lamination molding equipment for adhesive-free composite folders made of PP composite sheet includes a base 1. A side frame 2 is fixedly installed on one side of the upper surface of the base 1. Multiple feeding mechanisms for conveying PP composite sheet are sequentially installed on one side of the side frame 2. The feeding mechanism includes two feeding rollers 3 symmetrically arranged. Both feeding rollers 3 are rotatably connected to the side frame 2 through bearings.

[0022] In use, each sheet is unwound by an external unwinding mechanism, and then the sheet is fed by two corresponding feeding rollers 3. This allows the sheet to be fed at a uniform speed, and the subsequent sheet processing will not be affected by the tension change during the unwinding of the sheet, thus improving the sheet lamination effect.

[0023] The outer surface of the side frame 2 is equipped with a heating mechanism that cooperates with the feeding mechanism. The heating mechanism includes two symmetrically arranged heating rollers 4. Both heating rollers 4 are rotatably connected to the side frame 2 through bearings. Electric heating wires are installed inside the heating rollers 4.

[0024] When the electric heating wire is energized, it generates heat, which can heat the heating roller 4 and soften the sheet material passing between the two heating rollers 4, thus facilitating subsequent lamination and pressing.

[0025] The heating mechanism is equipped with a waste heat utilization mechanism that works in conjunction with the feeding mechanism. The waste heat utilization mechanism includes an insulation box 5 located outside the heating roller 4. One side of the insulation box 5 is fixedly connected to the side frame 2. A first heat exchange tube 6 is fixedly connected through the inside of the insulation box 5. A centrifugal fan 7 is fixedly installed on one side of the outer surface of the side frame 2. A second heat exchange tube 8 is rotatably connected through the inside of the feeding roller 3. One end of the first heat exchange tube 6 and the second heat exchange tube 8 are connected to the air inlet and air outlet of the centrifugal fan 7 respectively through a flexible hose.

[0026] When the sheet is heated and softened, heat is emitted around the heating roller 4. At this time, the first heat exchange tube 6 can exchange the excess heat. Then, the centrifugal fan 7 can transfer the heat to the second heat exchange tube 8 to heat the feeding roller 3. The heated feeding roller 3 can preheat the sheet, increase the temperature of the sheet before it enters the heating roller 4, reduce the temperature difference heating load of the heating roller 4 on the sheet, reduce the heating power consumption of the electric heating tube, and at the same time avoid thermal stress deformation of the substrate due to excessive temperature difference.

[0027] The outer surface of the side frame 2 is equipped with a pressing mechanism for laminating PP composite sheets. The pressing mechanism includes two symmetrically arranged pressure rollers 9, both of which are rotatably connected to the side frame 2 via bearings.

[0028] The two pressure rollers 9 can rotate relative to each other to perform lamination and molding operations on multiple sheets.

[0029] A cooling mechanism is installed on the outer surface of the side frame 2. The cooling mechanism includes two symmetrically arranged cooling rollers 10, both of which are rotatably connected to the side frame 2 via bearings. Rotary joints are fixedly installed at both ends of the cooling rollers 10. Two horizontal tubes 11 are symmetrically fixedly connected to one side of the outer surface of the side frame 2. Multiple nozzles 12 are sequentially and obliquely fixedly installed on the outer surface of the horizontal tubes 11. A blower 13 that cooperates with the horizontal tubes 11 is fixedly installed on the upper surface of the base 1. A protective box 14 is installed on the outer surface of the side frame 2. The outer surface of the protective box 14 has an opening, and a door is rotatably connected to the front of the protective box 14 via a hinge.

[0030] The cooling roller 10 is connected to an external cooling device via a rotary joint. After lamination, the product is first cooled by two cooling rollers 10. Then, the blower 13 is run, causing the cold air nozzle 12 to blow onto the product surface to achieve composite cooling, thereby achieving rapid and uniform cooling of the substrate and effectively reducing substrate shrinkage and deformation.

[0031] An operating table 15 is installed on one side of the upper surface of the base 1. The feeding roller 3, heating roller 4, pressure roller 9 and cooling roller 10 are all driven by external motors. Driving the feeding roller 3, heating roller 4, pressure roller 9 and cooling roller 10 by motors is a common technical means used by those skilled in the art and is common knowledge, so it will not be described in detail here. It can realize the conveying, heating, lamination and cooling of sheet materials. Furthermore, the operating table 15 facilitates the control of each electrical appliance, which is also a common technical means used by those skilled in the art.

[0032] Working principle: During use, the external unwinding mechanism unwinds each sheet, and then the corresponding two feeding rollers 3 feed the sheet, which can make the sheet feed at a uniform speed and will not affect the subsequent processing of the sheet due to the tension change during unwinding, thus improving the sheet lamination effect.

[0033] When the electric heating wire is energized, it generates heat, which can heat the heating roller 4 and soften the sheet material passing between the two heating rollers 4, thus facilitating subsequent lamination and pressing.

[0034] When the sheet is heated and softened, heat is emitted around the heating roller 4. At this time, the first heat exchange tube 6 can exchange the excess heat. Then, the centrifugal fan 7 can transfer the heat to the second heat exchange tube 8 to heat the feeding roller 3. The heated feeding roller 3 can preheat the sheet, increase the temperature of the sheet before it enters the heating roller 4, reduce the temperature difference heating load of the heating roller 4 on the sheet, reduce the heating power consumption of the electric heating tube, and at the same time avoid thermal stress deformation of the substrate due to excessive temperature difference.

[0035] The two pressure rollers 9 can rotate relative to each other to perform lamination and molding operations on multiple sheets.

[0036] The cooling roller 10 is connected to an external cooling device via a rotary joint. After lamination, the product is first cooled by two cooling rollers 10. Then, the blower 13 is run, causing the cold air nozzle 12 to blow onto the product surface to achieve composite cooling, thereby achieving rapid and uniform cooling of the substrate and effectively reducing substrate shrinkage and deformation.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lamination molding equipment for adhesive-free composite folders made of PP composite sheet, comprising a base (1), characterized in that: A side frame (2) is fixedly installed on one side of the upper surface of the base (1). Multiple sets of feeding mechanisms for conveying PP composite sheets are sequentially installed on one side of the side frame (2). A heating mechanism that cooperates with the feeding mechanism is installed on the outer surface of the side frame (2). A waste heat utilization mechanism that cooperates with the feeding mechanism is installed outside the heating mechanism. A pressing mechanism for laminating PP composite sheets is installed on the outer surface of the side frame (2). A cooling mechanism is installed on the outer surface of the side frame (2). An operating table (15) is installed on one side of the upper surface of the base (1). The feeding mechanism includes two symmetrically arranged feeding rollers (3), both of which are rotatably connected to the side frame (2) via bearings.

2. The lamination molding equipment for a PP composite sheet adhesive-free composite folder according to claim 1, characterized in that: The heating mechanism includes two symmetrically arranged heating rollers (4), both of which are rotatably connected to the side frame (2) via bearings, and electric heating wires are installed inside the heating rollers (4).

3. The lamination molding equipment for a PP composite sheet adhesive-free composite folder according to claim 1, characterized in that: The waste heat utilization mechanism includes an insulation box (5) located outside the heating roller (4). One side of the insulation box (5) is fixedly connected to the side frame (2). A first heat exchange tube (6) is fixedly connected through the inside of the insulation box (5). A centrifugal fan (7) is fixedly installed on one side of the outer surface of the side frame (2). A second heat exchange tube (8) is rotatably connected through the inside of the feeding roller (3). One end of the first heat exchange tube (6) and the second heat exchange tube (8) are connected to the air inlet and air outlet of the centrifugal fan (7) respectively through a hose.

4. The lamination molding equipment for a PP composite sheet adhesive-free composite folder according to claim 2, characterized in that: The pressing mechanism includes two symmetrically arranged pressure rollers (9), both of which are rotatably connected to the side frame (2) via bearings.

5. The lamination molding equipment for a PP composite sheet adhesive-free composite folder according to claim 4, characterized in that: The cooling mechanism includes two symmetrically arranged cooling rollers (10), both of which are rotatably connected to the side frame (2) via bearings, and both ends of the cooling rollers (10) are fixedly installed with rotary joints.

6. The lamination molding equipment for a PP composite sheet adhesive-free composite folder according to claim 5, characterized in that: Two horizontal tubes (11) are symmetrically fixedly connected to one side of the outer surface of the side frame (2). Multiple nozzles (12) are installed obliquely on the outer surface of the horizontal tubes (11). A blower (13) that cooperates with the horizontal tubes (11) is fixedly installed on the upper surface of the base (1). A protective box (14) is installed on the outer surface of the side frame (2). An opening is opened on the outer surface of the protective box (14), and a door is rotatably connected to the front side of the protective box (14) via a hinge.

7. The lamination molding equipment for a PP composite sheet adhesive-free composite folder according to claim 5, characterized in that: The feeding roller (3), heating roller (4), pressure roller (9) and cooling roller (10) are all driven by external motors.

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