Drying device for PVC decorative film

Abstract

The utility model discloses a drying device for a PVC decorative film. The drying device comprises a supporting frame; the drying box is arranged in the middle of the supporting frame, a plurality of sets of hollow rollers are arranged in the drying box, and a high-temperature circulating medium is injected into the hollow rollers and used for drying the PVC decorative film penetrating through the middles of the hollow rollers; the PVC decorative film drying device comprises a drying box, a plurality of groups of hollow rollers and a plurality of partition plates, the partition plates are fixedly connected into the drying box, and a plurality of fans are fixedly connected to the side edge of the drying box at equal intervals and used for discharging heat dissipated by the hollow rollers to preheat a PVC decorative film. Compared with direct heating, heat can be transferred more uniformly, and the equipment can perform multi-stage preheating and drying treatment on the PVC decorative film; the drying efficiency is improved, uniform heat treatment of the PVC decorative film is ensured, and heat dissipated by the rollers is effectively transferred to the PVC decorative film entering the drying box through the fan.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC decorative film processing, in particular to a drying device for PVC decorative film. Background Art

[0002] PVC decorative film is a material widely used in interior decoration, especially in furniture, floor, wall and ceiling decoration. PVC decorative film has good wear resistance, scratch resistance and chemical corrosion resistance, suitable for high-frequency use environment. It can be made into a variety of colors and patterns, including imitation of natural materials such as wood grain, stone, leather, etc., beautiful and with realistic texture.

[0003] During the processing of PVC decorative film, in order to remove moisture and solvents from the material and ensure the stability of the film quality and the effectiveness of subsequent processing, it needs to be dried. The existing drying device has a single drying method and uneven heat transfer, which cannot reduce heat energy loss and cannot perform multi-stage preheating and drying treatment on the PVC decorative film. Utility Model Content

[0004] The purpose of the utility model is to provide a drying device for PVC decorative film to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a drying device for PVC decorative film, comprising:

[0006] Support frame;

[0007] A drying box, which is placed in the middle of the support frame, and has multiple sets of hollow rollers inside. High-temperature circulating medium is injected into the hollow rollers to dry the PVC decorative film passing through the middle of the hollow rollers;

[0008] The partition is fixedly connected to the inside of the drying box. A plurality of fans are fixedly connected to the side of the drying box at equal intervals to discharge the heat dissipated by the hollow roller to preheat the PVC decorative film;

[0009] The driving part is arranged on one side of the supporting frame, and comprises a driving motor and a gear set, wherein the driving motor is connected to the hollow roller through the gear set.

[0010] Preferably, a plurality of groups of hollow rollers are arranged up and down, each group of hollow rollers has two hollow rollers arranged horizontally, and a rotary joint is installed at the end of each hollow roller.

[0011] Preferably, a power box is fixedly connected to one side of the support frame. One end of each hollow roller extends into the power box. The gear set includes transmission gears. A transmission gear is fixedly connected to the end of each hollow roller. The transmission gears of each group of hollow rollers mesh with each other. One end of a hollow roller in each group is drivingly connected to one end of a hollow roller in an adjacent group through a transmission belt assembly.

[0012] Preferably, a driving motor is fixedly connected inside the power box. The output end of the driving motor is fixedly connected to a driving gear, and the driving gear is meshingly connected to one of the transmission gears.

[0013] Preferably, a first conveying roller is rotatably connected to one side of the support frame, and a third conveying roller is rotatably connected above the first conveying roller on the outside of the drying box.

[0014] Preferably, a feed inlet is provided at the bottom of the drying box. A second conveying roller is rotatably connected to the bottom of the support frame corresponding to the position of the feed inlet. Two fourth guiding rollers are rotatably connected to the inside of the drying box corresponding to the position of the feed inlet, and the fourth guiding rollers are located at the position of the air outlet of the fan.

[0015] Preferably, a first guiding roller and a third guiding roller are rotatably connected above the hollow rollers inside the drying box, and two second guiding rollers are rotatably connected below the hollow rollers inside the drying box.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: Through the configuration of multiple groups of hollow rollers and multiple fans, the high-temperature medium (such as hot water) circulating inside the hollow rollers directly heats the PVC decorative film. Compared with direct heating, heat can be transferred more evenly, reducing heat energy loss. The device can perform multi-stage preheating and drying treatment on the PVC decorative film; not only improves the drying efficiency, but also ensures the uniformity of the heat treatment of the PVC decorative film. The use of the fan effectively transfers the heat dissipated by the rollers to the PVC decorative film entering the drying box, utilizing the concept of heat energy recovery and further improving the energy utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a schematic structural diagram of the first conveying roller of the present utility model;

[0019] Figure 3 is a schematic internal structural diagram of the power box of the present utility model;

[0020] Figure 4 is a schematic internal structural diagram of the drying box of the present utility model.

[0021] In the figure: 1. Support frame; 2. Power box; 3. Conveyor roller No. 1; 4. Conveyor roller No. 2; 5. Drying box; 6. Conveyor roller No. 3; 7. Transmission gear; 8. Transmission belt assembly; 9. Rotary joint; 10. Driving motor; 11. Driving gear; 12. Hollow roller; 13. Guide roller No. 1; 14. Guide roller No. 2; 15. Guide roller No. 3; 16. Partition; 17. Fan; 18. Guide roller No. 4. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 - 4 The utility model provides a technical solution: a drying device for PVC decorative film, comprising: a support frame 1 composed of two I-shaped metal frames; a drying box 5 is fixedly connected to the middle of the support frame 1, and a plurality of groups of hollow rollers 12 are rotatably arranged inside the drying box 5, and a high-temperature circulating medium is injected into the hollow rollers 12 to dry the PVC decorative film passing through the middle of the hollow rollers 12; a partition 16 is fixedly connected to the inside of the drying box 5, and a plurality of fans 17 are fixedly connected to the side of the drying box 5 at equal intervals to discharge the heat dissipated by the hollow rollers 12 to preheat the PVC decorative film; a driving part is placed on one side of the support frame 1, and the driving part comprises a driving motor 10 and a gear set, and the driving motor 10 is connected to the hollow roller 12 through the gear set.

[0024] It should be noted that the utility model inserts the PVC decorative film from the bottom of the power box 2, so that it passes through the position corresponding to the air outlet of the fan 17, and then passes through between two adjacent hollow rollers 12, so that the PVC decorative film contacts the hollow roller 12, and then passes out from one side of the top of the drying box 5 after circulating inside the drying box 5. During this period, the hollow roller 12 rolls and contacts the PVC decorative film, and hot water is circulated inside the hollow roller 12, so that the heated hollow roller 12 is in full contact with the PVC decorative film, and the fan 17 transmits the heat dissipated into the air by the hollow roller 12 through the partition 16 to the PVC decorative film that has just entered the drying box 5, thereby realizing multi-stage drying processing.

[0025] like Figure 3 , 4As shown, multiple groups of hollow rollers 12 are arranged vertically, with two hollow rollers 12 in each group arranged horizontally. A rotary joint 9 is installed at the end of each hollow roller 12. On one side of the support frame 1, a power box 2 is fixedly connected. One end of each hollow roller 12 extends into the power box 2. The gear set includes a transmission gear 7, and a transmission gear 7 is fixedly connected to the end of each hollow roller 12. The transmission gears 7 of each group of hollow rollers 12 mesh with each other. One end of one hollow roller 12 in each group is drivingly connected to one hollow roller 12 of the adjacent group through a transmission belt assembly 8. Inside the power box 2, a driving motor 10 is fixedly connected. The output end of the driving motor 10 is fixedly connected to a driving gear 11, and the driving gear 11 is meshingly connected with one of the transmission gears 7.

[0026] It should be noted that in the present utility model, two horizontal hollow rollers 12 form a group, and there are three groups arranged vertically. The PVC decorative film is passed through between the two horizontal hollow rollers 12, and then passed through from top to bottom. The rotary joint 9 at one end of the hollow roller 12 is connected to a hot water source, and the rotary joint at the other end is connected to a recycling device, so as to realize the recycling of hot water. The driving motor 10 drives one of the transmission gears 7 to rotate through the driving gear 11, and the transmission gear 7 drives the meshing gear to rotate. At the same time, the transmission gears 7 up and down are drivingly connected through the transmission belt assembly 8. Among them, the transmission belt assembly 8 includes two belt pulleys connected to the transmission gears 7 and a transmission belt for driving the two belt pulleys.

[0027] As Figure 1 、 2 As shown in FIGS. 3 and 4, a first conveying roller 3 is rotatably connected to one side of the support frame 1, and a third conveying roller 6 is rotatably connected above the first conveying roller 3 on the outside of the drying box 5.

[0028] It should be noted that after the dried PVC decorative film comes out from one side of the drying box 5, it winds around the outside of the top of the third conveying roller 6, and then moves downward, and then bypasses from the bottom of the first conveying roller 3, so that it is cooled during the process of being conveyed from top to bottom. One end of the PVC decorative film is connected to other equipment to facilitate subsequent processing.

[0029] As Figure 4 As shown, a feed inlet is provided at the bottom of the drying box 5. A second conveying roller 4 is rotatably connected to the bottom of the support frame 1 corresponding to the position of the feed inlet. Two fourth guiding rollers 18 are rotatably connected to the inside of the drying box 5 corresponding to the position of the feed inlet. The fourth guiding rollers 18 are located at the blowing outlet of the fan 17. A first guiding roller 13 and a third guiding roller 15 are rotatably connected above the hollow roller 12 inside the drying box 5. Two second guiding rollers 14 are rotatably connected below the hollow roller 12 inside the drying box 5.

[0030] It should be noted that a feed inlet is provided at the bottom of the drying box 5 of the present utility model. The PVC decorative film bypasses from the bottom of the second conveying roller 4 and then bypasses the outside of the two fourth guiding rollers 18. Since the fourth guiding rollers 18 are located at the air outlet position of the fan 17, the PVC decorative film is tightened and faces the fan 17 directly. The fan 17 blows the heat dissipated from the hollow roller 12 on the other side of the partition 16 towards the PVC decorative film to preheat the PVC decorative film. Then the PVC decorative film winds around the outside of the third guiding roller 15 and passes downward through the space between two adjacent hollow rollers 12, then bypasses from the bottom of the two second guiding rollers 14, bypasses from the outside of the first guiding roller 13, and then passes out of the drying box 5. In this way, the PVC decorative film is subjected to multi-stage drying treatment during its conveyance in the drying box 5.

[0031] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front part", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0032] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0033] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0034] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A drying device for PVC decorative film, characterized in that: include: Support frame (1); A drying box (5), the drying box (5) is placed in the middle of the support frame (1), a plurality of groups of hollow rollers (12) are arranged inside the drying box (5), a high-temperature circulating medium is injected into the hollow rollers (12), and is used to dry the PVC decorative film passing through the middle of the hollow rollers (12); A partition (16), the partition (16) is fixedly connected to the interior of the drying box (5), and a plurality of fans (17) are fixedly connected to the side of the drying box (5) at equal intervals, and are used to discharge the heat dissipated by the hollow roller (12) to preheat the PVC decorative film; A driving unit is disposed on one side of the support frame (1), and comprises a driving motor (10) and a gear set, wherein the driving motor (10) is connected to the hollow roller (12) via the gear set.

2. A drying device for PVC decorative film according to claim 1, characterized in that: A plurality of groups of hollow rollers (12) are arranged vertically, each group of hollow rollers (12) comprises two hollow rollers (12) arranged horizontally, and a rotary joint (9) is installed at the end of each hollow roller (12).

3. A drying device for PVC decorative film according to claim 2, characterized in that: A power box (2) is fixedly connected to one side of the support frame (1), one end of each hollow roller (12) extends into the power box (2), the gear set comprises a transmission gear (7), the end of each hollow roller (12) is fixedly connected to a transmission gear (7), the transmission gears (7) of each group of hollow rollers (12) are meshed with each other, and the end of one hollow roller (12) in each group is connected to the end of one hollow roller (12) in an adjacent group through a transmission belt assembly (8).

4. The drying device for PVC decorative film according to claim 3, characterized in that: A driving motor (10) is fixedly connected to the interior of the power box (2), and a driving gear (11) is fixedly connected to the output end of the driving motor (10), and the driving gear (11) is meshedly connected to one of the transmission gears (7).

5. The drying device for PVC decorative film according to claim 1, characterized in that: A first conveying roller (3) is rotatably connected to one side of the support frame (1), and a third conveying roller (6) is rotatably connected to the outside of the drying box (5) and located above the first conveying roller (3).

6. The drying device for PVC decorative film according to claim 1, characterized in that: A feed port is provided at the bottom of the drying box (5); a No. 2 conveying roller (4) is rotatably connected to the bottom of the support frame (1) at a position corresponding to the feed port; and two No. 4 guide rollers (18) are rotatably connected to the temple of the drying box (5) at a position corresponding to the feed port; the No. 4 guide rollers (18) are located at the position of the blowing port of the fan (17).

7. The drying device for PVC decorative film according to claim 1, characterized in that: A first guide roller (13) and a third guide roller (15) are rotatably connected inside the drying box (5) and located above the hollow roller (12); and two second guide rollers (14) are rotatably connected inside the drying box (5) and located below the hollow roller (12).

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