Hollow lattice plate heat setting device

Abstract

The utility model discloses a hollow lattice board heat setting device, including heat setting oven, the surface welding of heat setting oven has the support, and the support is fixed with industrial hot -blast machine, in the utility model, through starting industrial hot -blast machine work, make the hot -blast of constant temperature by hot -blast pipe shunt introduction comb tooth type's lower layer wind duct group and the inside of upper layer wind duct group, again by lower layer wind duct group and the several branch pipes of upper layer wind duct group shunt into corresponding hot -blast cover again, at this moment, because the hot -blast cover is installed two groups of the air deflector of opposite inclined direction symmetry, make the hot -blast that enters the hot -blast cover and enlarge the coverage after the guidance of two groups of air deflector, until the hot -blast passes through the opening of hot -blast cover and blows on the roller -type conveyer belt, realize the double -sided, even heat setting treatment of hollow lattice board, compared with the heating pipe heating mode of traditional vertical to hollow lattice board conveying direction, avoid the warping phenomenon that traditional heating element causes because of uneven heating.

Description

Technical Field

[0001] This utility model relates to the technical field of hollow panel processing equipment, and in particular to a heat-setting device for hollow panels. Background Technology

[0002] Hollow core panels, also known as corrugated boards, double-wall panels, or corrugated sheets, are made of plastic materials such as PP / PC / PE / PVC. Their products have a smooth, beautiful, and pressure-resistant surface and are widely used in many fields of the construction, packaging, and decoration industries.

[0003] In the production process of hollow-panel slabs, after the raw materials undergo melt extrusion, cooling and shaping, traction, and edge trimming, they still need to undergo heat setting. This involves reheating the hollow-panel slabs to eliminate surface stress and further shape them, ensuring flatness and smoothness. The heat setting process involves passing the hollow-panel slabs through a heat setting oven, where heating devices heat both sides and control the temperature to eliminate surface stress and improve flatness and smoothness. However, in traditional heat setting ovens, the heating elements are positioned perpendicular to the conveying direction of the hollow-panel slabs. This often results in warping due to uneven heating, failing to meet quality standards. Some factories have attempted to improve this by adjusting the heating temperature, but this has not solved the underlying technical problems, resulting in low product quality and a low yield rate.

[0004] To address this issue, a heat-setting device for hollow square plates is proposed, which has the advantages of uniform heating and shaping and anti-warping, thereby solving the problems mentioned in the background technology. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a heat-setting device for a hollow panel.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a heat-setting device for a hollow panel, comprising a heat-setting oven, wherein a support is welded to the surface of the heat-setting oven, and an industrial hot air blower is fixed on the support. A hot air pipe is connected to the air outlet of the industrial hot air blower, and the two ends of the hot air pipe are respectively connected to a lower air guide pipe group and an upper air guide pipe group. Several branch pipes are provided on both the lower and upper air guide pipe groups, and an air volume regulating valve is installed on the surface of each branch pipe. A hot air hood is provided at one end of each branch pipe extending to the inside of the heat-setting oven. Two sets of air guide plates are symmetrically arranged inside the hot air hood, and the two sets of air guide plates are inclined in opposite directions. A roller conveyor belt is installed inside the heat-setting oven, and a turnover rack is installed at each end of the roller conveyor belt. Both turnover racks extend to the outside of the heat-setting oven, and a hopper is provided below one of the turnover racks.

[0007] As a further description of the above technical solution: the feeding hopper is composed of an inclined part and a horizontal part, and the bottom surface of the inner side of the feeding hopper is covered with an elastic layer of polyurethane material, and the top surface of the turnover rack at the right end of the heat setting oven is provided with a slope.

[0008] As a further description of the above technical solution: an exhaust pipe is provided on the upper left side of the heat setting oven, and a manual valve is installed on the surface of the exhaust pipe.

[0009] As a further description of the above technical solution: both the lower air duct group and the upper air duct group have a comb-shaped structure, and both ends of the lower air duct group and the upper air duct group are provided with support seats connected to the heat setting oven.

[0010] As a further description of the above technical solution: the turnover rack is composed of a metal panel and a diagonal brace welded to its bottom, and the side of the metal panel of the turnover rack is provided with an arc-shaped notch, which is oriented towards the roller conveyor belt.

[0011] As a further description of the above technical solution: a viewing window is embedded in the surface of the heat setting oven, and the installation height of the viewing window is greater than the installation height of the roller conveyor belt.

[0012] This utility model has the following beneficial effects:

[0013] In this invention, by starting the industrial hot air blower, hot air at a constant temperature is diverted from the hot air pipe into the comb-shaped lower and upper air guide pipe groups. Then, the hot air is diverted again into the corresponding hot air hood by several branch pipes of the lower and upper air guide pipe groups. At this time, since two sets of guide plates with opposite inclinations are symmetrically installed inside the hot air hood, the hot air entering the hot air hood is guided by the two sets of guide plates to expand the coverage area until the hot air blows onto the roller conveyor belt through the opening of the hot air hood, thus achieving double-sided and uniform heat setting treatment of the hollow panel. Compared with the traditional heating method of heating pipes perpendicular to the conveying direction of the hollow panel, this method avoids the warping phenomenon caused by uneven heating of traditional heating elements.

[0014] In this invention, a hopper is installed at the discharge end of the heat-setting oven. As the openwork panels are conveyed out from the discharge end of the heat-setting oven, they slide into the hopper under the guidance of a turnover rack with a sloping surface. This allows the openwork panels to pass through the inclined and horizontal parts of the hopper in sequence, and the elastic layer absorbs the impact during the falling phase. Compared with the prior art, this method facilitates the buffering and discharge of the openwork panels, avoiding damage caused by the natural fall of the openwork panels. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of a heat-setting device for a hollow panel according to the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of a heat-setting device for a hollow panel according to the present invention;

[0017] Figure 3 This is a schematic diagram of the branch pipe structure;

[0018] Figure 4 This is a schematic diagram of the feeding hopper.

[0019] Legend:

[0020] 1. Heat setting oven; 2. Exhaust pipe; 3. Turnover rack; 4. Support frame; 5. Industrial hot air blower; 6. Lower air duct assembly; 7. Upper air duct assembly; 8. Hot air duct; 9. Branch pipe; 10. Air volume regulating valve; 11. Viewing window; 12. Feed hopper; 13. Hot air hood; 14. Roller conveyor belt; 15. Air guide plate; 16. Elastic layer; 17. Inclined section; 18. Horizontal section. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0022] According to an embodiment of the present invention, a heat-setting device for a hollow panel is provided.

[0023] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4 As shown, a heat-setting device for a hollow panel according to an embodiment of the present invention includes a heat-setting oven 1. A support 4 is welded to the surface of the heat-setting oven 1, and an industrial hot air blower 5 is fixed on the support 4. A hot air pipe 8 is connected to the air outlet of the industrial hot air blower 5, and the two ends of the hot air pipe 8 are respectively connected to a lower air guide pipe group 6 and an upper air guide pipe group 7. Several branch pipes 9 are provided on both the lower air guide pipe group 6 and the upper air guide pipe group 7, and an air volume regulating valve 10 is installed on the surface of each branch pipe 9. A hot air hood 13 is provided at one end of each branch pipe 9 extending to the inside of the heat-setting oven 1. Two sets of air guide plates 15 are symmetrically arranged inside the hot air hood 13, and the two sets of air guide plates 15 are inclined in opposite directions. A roller conveyor belt 14 is installed inside the heat-setting oven 1. A turnover rack 3 is installed at each end of 4. Both turnover racks 3 extend to the outside of the heat setting oven 1. A hopper 12 is set below one of the turnover racks 3. The principle of the industrial hot air blower 5 and the roller conveyor belt 14 is a known existing technology and there are mature products. Therefore, the principle will not be explained further. The control method of this utility model is to control it by manually starting and stopping the switch. The wiring diagram of the power element and the power supply are common knowledge in the field. This utility model is mainly used to protect mechanical devices. Therefore, the control method and wiring layout will not be explained in detail. Through the two sets of air guide plates 15 symmetrically arranged inside the hot air hood 13, the hot air can be split along the gap between the two adjacent air guide plates 15 and the inclined surface of the air guide plate 15 to achieve the effect of uniform hot air dispersion.

[0024] In one embodiment, the hopper 12 is composed of an inclined portion 17 and a horizontal portion 18, and the inner bottom surface of the hopper 12 is covered with an elastic layer 16 made of polyurethane. The top surface of the turnover rack 3 at the right end of the heat-setting oven 1 is provided with a slope. With this structure, as the hollow panel is conveyed out from the discharge end of the heat-setting oven 1, the hollow panel slides into the hopper 12 under the guidance of the turnover rack 3 with the slope. The hollow panel passes through the inclined portion 17 and the horizontal portion 18 of the hopper 12 in sequence, and the impact of the falling phase is absorbed by the elastic layer 16, realizing the buffer discharge of the hollow panel and avoiding damage caused by the natural fall of the hollow panel. The elastic layer 16 made of polyurethane is used to absorb the impact force of the falling hollow panel and prevent damage.

[0025] In one embodiment, an exhaust pipe 2 is provided on the upper left side of the heat setting oven 1, and a manual valve is installed on the surface of the exhaust pipe 2. This structure makes it easy to discharge excess hot air.

[0026] In one embodiment, both the lower air duct assembly 6 and the upper air duct assembly 7 have a comb-like structure, and both ends of the lower air duct assembly 6 and the upper air duct assembly 7 are provided with support seats connected to the heat setting oven 1. This structure makes it easy to fix the lower air duct assembly 6 and the upper air duct assembly 7 (by fixing the support seats with screws).

[0027] In one embodiment, the turnover rack 3 is composed of a metal panel and a diagonal brace welded to its bottom, and the side of the metal panel of the turnover rack 3 is provided with an arc-shaped notch. The arc-shaped notch of the turnover rack 3 is set towards the roller conveyor belt 14. With this structure, it is easy to feed and discharge the hollow plate.

[0028] In one embodiment, a viewing window 11 is embedded in the surface of the heat setting oven 1, and the installation height of the viewing window 11 is greater than the installation height of the roller conveyor belt 14. This structure facilitates real-time observation of the heat setting status, and the viewing window 11 is made of heat-resistant glass.

[0029] Working principle:

[0030] In use, the hollow panel is first fed into the material inlet at the left end of the heat-setting oven 1. Then, the roller conveyor is started to make the conveyor belt work and move the hollow panel. By starting the industrial hot air blower 5, hot air at a constant temperature is diverted from the hot air pipe 8 into the comb-shaped lower air guide pipe group 6 and the upper air guide pipe group 7. Then, the hot air is diverted again by several branch pipes 9 of the lower air guide pipe group 6 and the upper air guide pipe group 7 into the corresponding hot air hood 13. At this time, since two sets of guide plates 15 with opposite inclination are symmetrically installed inside the hot air hood 13, the hot air entering the hot air hood 13 is diverted by the two sets of guide plates. After being guided by the air deflector 15, the coverage area is expanded until hot air is blown onto the roller conveyor belt 14 through the opening of the hot air hood 13, achieving double-sided and uniform heat setting treatment of the hollow panel. As the hollow panel is conveyed out from the discharge end of the heat setting oven 1, it slides into the hopper 12 under the guidance of the turnover rack 3 with a sloping surface. The hollow panel passes through the inclined part 17 and the horizontal part 18 of the hopper 12 in sequence, and the impact of the falling stage is absorbed by the elastic layer 16, realizing the buffer discharge of the hollow panel and avoiding damage caused by the natural fall of the hollow panel.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat-setting device for a hollow panel, comprising a heat-setting oven (1), characterized in that: The surface of the heat-setting oven (1) is welded with a support (4), and an industrial hot air blower (5) is fixed on the support (4). The air outlet of the industrial hot air blower (5) is connected to a hot air pipe (8), and the two ends of the hot air pipe (8) are respectively connected to a lower air guide pipe group (6) and an upper air guide pipe group (7). Both the lower air guide pipe group (6) and the upper air guide pipe group (7) are provided with several branch pipes (9), and each branch pipe (9) is equipped with an air volume regulating valve (10) on its surface. Each branch pipe (9) extends to A hot air hood (13) is provided at one end of the inner side of the heat setting oven (1). Two sets of air guide plates (15) are symmetrically arranged inside the hot air hood (13), and the two sets of air guide plates (15) are arranged in opposite directions. A roller conveyor belt (14) is installed inside the heat setting oven (1), and a turnover rack (3) is installed at each end of the roller conveyor belt (14). Both turnover racks (3) extend to the outside of the heat setting oven (1), and a hopper (12) is provided below one of the turnover racks (3).

2. The heat-setting device for a hollow panel according to claim 1, characterized in that: The feeding hopper (12) is composed of an inclined part (17) and a horizontal part (18), and the bottom surface of the inner side of the feeding hopper (12) is covered with an elastic layer (16) of polyurethane material. The top surface of the turnover rack (3) at the right end of the heat setting oven (1) is provided with a slope.

3. The heat-setting device for a hollow panel according to claim 1, characterized in that: The heat setting oven (1) is provided with an exhaust pipe (2) on the upper left side, and a manual valve is installed on the surface of the exhaust pipe (2).

4. The heat-setting device for a hollow panel according to claim 1, characterized in that: Both the lower air duct group (6) and the upper air duct group (7) have a comb-shaped structure, and both ends of the lower air duct group (6) and the upper air duct group (7) are provided with support seats connected to the heat setting oven (1).

5. The heat-setting device for a hollow panel according to claim 1, characterized in that: The turnover rack (3) is composed of a metal panel and a diagonal brace welded to its bottom. The metal panel of the turnover rack (3) has an arc-shaped notch on its side, and the arc-shaped notch of the turnover rack (3) is set towards the roller conveyor belt (14).

6. The heat-setting device for a hollow panel according to claim 1, characterized in that: The surface of the heat setting oven (1) is embedded with a viewing window (11), and the installation height of the viewing window (11) is greater than the installation height of the roller conveyor belt (14).

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