Tower type dryer

Abstract

The utility model discloses a tower type dryer, which comprises a drying box, a tower type conveying device and a drying device, the tower type conveying device is arranged in the drying box and used for conveying printed materials, the drying device is used for drying printing ink of the printed materials on the tower type conveying device, the tower type conveying device comprises a conveying belt, and the conveying belt is distributed in a triangular shape. The tower type dryer is arranged in a tower type and occupies a small horizontal space.

Description

Technical Field

[0001] This utility model relates to the field of screen printing equipment technology, specifically to a tower dryer. Background Technology

[0002] Screen printing refers to the process of using a screen as a printing plate and creating a screen printing plate with images and text through a photosensitive plate-making method. Screen printing consists of five main elements: screen printing plate, squeegee, ink, printing platform, and substrate. It utilizes the basic principle that ink can pass through the mesh openings of the screen printing plate in the image areas, while ink cannot pass through the mesh openings in the non-image areas. During printing, ink is poured into one end of the screen printing plate, and a squeegee applies a certain pressure to the ink areas on the screen printing plate while moving at a constant speed towards the other end of the screen printing plate. As the squeegee moves, the ink is squeezed from the mesh openings of the image areas onto the substrate.

[0003] To improve production efficiency, some printing substrates are roll materials, such as those used in screen printing on fabric. After ink printing, the roll material needs to be immediately rewound. If the ink pattern on the roll material is not dried in time, it can easily smudge upon contact, causing unnecessary losses and affecting work quality and efficiency. Therefore, drying equipment is usually required to dry the roll material after screen printing. Existing drying equipment uses a horizontally arranged conveyor system to horizontally transport the roll material, resulting in a long overall length and a large horizontal space requirement. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned problems and provide a tower dryer that is arranged in a tower shape and occupies little horizontal space.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A tower dryer includes a drying chamber, a tower conveyor disposed inside the drying chamber for conveying a printing substrate, and a drying device for drying the ink on the printing substrate on the tower conveyor. The tower conveyor includes a conveyor belt arranged in a triangular pattern.

[0007] The working principle of the above-mentioned tower dryer is as follows:

[0008] The conveyor belt is triangularly distributed, giving it two sides and a bottom. The substrate enters from the bottom of the drying chamber, is conveyed upwards along one side of the conveyor belt, passes the highest point of the conveyor belt, and is then conveyed downwards along the other side of the conveyor belt, finally exiting from the bottom of the drying chamber. During the conveying process, the hot air generated by the drying device dries the ink on the substrate.

[0009] In a preferred embodiment of this invention, the tower conveyor further includes three conveying rollers arranged inside the drying chamber to guide the movement of the conveyor belt. These three conveying rollers are distributed in a triangular pattern. By arranging the three conveying rollers, the conveyor belt is connected to them, and the triangular distribution of the three rollers allows the conveyor belt to also be arranged in a triangular pattern, thus forming a tower structure. This significantly saves horizontal space, reduces the footprint, and results in a more compact structure.

[0010] Preferably, the tower-type conveyor further includes two tripods installed inside the drying chamber; the bottom of the tripods is installed at the bottom of the drying chamber, and the conveying rollers are positioned between the two tripods, with the positions of the three conveying rollers corresponding to the three vertices of the tripods. By setting up the tripods, the conveying rollers can be installed, making the structure very compact.

[0011] Preferably, the drying device includes a fan mounted on top of the drying chamber, vertically arranged air supply channels on both sides of the drying chamber, and an electric heating mechanism disposed between the fan and the air supply channels; the air supply channels have multiple through holes on the side opposite to the conveyor belt. In the above structure, the conveyor belt continuously transports the printing substrate, and the air generated by the fan is heated by the electric heating mechanism. The hot air is then transported downwards through the air supply channels. During the downward transport process, the hot air flows out from the through holes and dries the ink on the printing substrate on the conveyor belt.

[0012] Preferably, the air supply channel is equipped with multiple inclined air guide plates arranged vertically, with the inclination angle of the air guide plates gradually decreasing from top to bottom. These air guide plates are installed on one side of the air supply channel where the through-holes are located. The inclination angle of the air guide plate refers to the angle (acute angle) between the air guide plate and the horizontal plane. Hot air from the air supply channel is delivered from top to bottom. By setting up the air guide plates, the hot air can be guided to the through-holes, facilitating its flow out and blowing onto the substrate on the conveyor belt. The gradually decreasing inclination angle of the multiple air guide plates from top to bottom causes the upper ends of the air guide plates to be staggered, making it easier to guide the air into the through-holes and ensuring that hot air is blown out from all the through-holes.

[0013] Preferably, the top of the drying oven is provided with a fan mounting cavity, and two electric heating mechanism mounting cavities are provided on both sides of the fan mounting cavity. The fan is mounted on the fan mounting cavity, and two electric heating mechanisms are respectively mounted in two electric heating mechanism mounting cavities. The fan mounting cavity is connected to the electric heating mechanism mounting cavity, and the electric heating mechanism mounting cavity is connected to the upper end of the air supply channel. By setting the above structure, it is convenient to install the fan and the electric heating mechanisms, and at the same time, it is convenient to deliver hot air to the air supply channel. The air generated by the fan blows into the electric heating mechanism mounting cavity, is heated by the electric heating mechanism, and then flows downward from the upper end of the air supply channel.

[0014] Preferably, the bottom of the fan mounting cavity is provided with a return air vent. The hot air blown onto the conveyor belt, after passing through the drying process, enters the fan mounting cavity from the top return air vent, and is then transported by the fan to the electric heating mechanism mounting cavity, forming an air circulation conveying system, which improves efficiency. The air that has passed through the drying process still retains residual heat, which is recycled through the return air vent, saving energy.

[0015] Preferably, the bottom of the drying chamber is provided with an inlet and an outlet, and the inlet and outlet are provided with guide plates on the side near the conveyor belt. In the above structure, the substrate after screen printing enters from the inlet at the bottom of the drying chamber, is conveyed upward at an angle close to one side of the conveyor belt, passes the highest point of the conveyor belt, and is then conveyed downward at an angle along the other side of the conveyor belt, finally exiting from the outlet at the bottom of the drying chamber, thus realizing the entry and exit of the substrate from the drying chamber; the guide plates can better guide the substrate, making it close to the conveyor belt, thus realizing the transport of the substrate.

[0016] Preferably, the bottom of the two tripods is provided with tension rollers for tensioning the conveyor belt. By setting the tension rollers, the conveyor belt can be tensioned and the tension of the conveyor belt can be adjusted.

[0017] Preferably, the drying chamber has a drying zone inside, the tower conveyor is located in the drying zone, the return air vent is connected to the drying zone, and the through hole is connected to the drying zone; the space enclosed by the two tripods, the two sides of the conveyor belt, and the bottom of the drying chamber is a triangular area, one of the tripods has a connecting port; a blower is located at the bottom of the drying chamber, one end of the blower is connected to the drying zone, and the other end is connected to the triangular area. During drying, hot air flows into the drying zone through the through hole to dry the ink on the substrate. The blower operates, blowing hot air from the drying zone into the triangular area, allowing air circulation in the triangular area. The hot air enters the triangular area and can then enter the drying zone through the connecting port, forming a circulation. This improves the hot air flow effect, enhances the drying effect, and also increases the temperature inside the conveyor belt, further improving the drying effect.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] 1. In this utility model, the tower dryer has a triangularly distributed conveyor belt, which makes the tower conveyor device arranged in a tower shape, with a small horizontal space occupation, resulting in a small floor area and a more compact structure.

[0020] 2. In the tower dryer of this utility model, the conveyor belt is distributed in a triangular shape. The conveyor belt is inclined upward to transport the substrate. After passing the highest point of the conveyor belt, it is inclined downward to transport the substrate. The conveying distance is long, which can improve the drying effect. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of one specific embodiment of a tower dryer according to the present invention.

[0022] Figure 2 This is a three-dimensional structural diagram of a tower dryer according to this utility model from another perspective.

[0023] Figure 3 This is a side view of a tower dryer according to the present invention.

[0024] Figure 4 for Figure 3 A cross-sectional view along the AA direction.

[0025] Figure 5 This is a bottom view of a tower dryer according to the present invention.

[0026] Figure 6 for Figure 4 A magnified view of a section at point B in the middle.

[0027] Figure 7 This is a three-dimensional structural diagram of a tower dryer, including its concealed support frame, cabinet door, blower, and part of the drying chamber.

[0028] Figure 8 This is a three-dimensional structural diagram of a tower dryer with concealed legs, cabinet doors, and part of the drying chamber, according to this utility model.

[0029] Figure 9 This is a three-dimensional structural diagram of the tower conveying device in this utility model.

[0030] Figure 10 This is a three-dimensional structural diagram of the tower conveying device in this utility model from another perspective.

[0031] Figure 11 This is a three-dimensional structural diagram showing the tower-type conveying device of this utility model, which conceals one of the tripods. Detailed Implementation

[0032] To enable those skilled in the art to fully understand the technical solution of this utility model, the present utility model will be further described below in conjunction with the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0033] See Figures 1-11This embodiment discloses a tower dryer, including a drying chamber 1, a tower conveyor device disposed inside the drying chamber 1 for conveying the printed material, and a drying device for drying the ink on the printed material on the tower conveyor device. The tower conveyor device includes a conveyor belt 2, which is triangularly distributed. The triangular distribution of the conveyor belt 2 allows the tower conveyor device to be arranged in a tower shape, occupying less horizontal space, making the tower dryer smaller in area and more compact in structure. On the other hand, the conveyor belt 2 tilts upward to convey the printed material, and after passing the highest point of the conveyor belt 2, it tilts downward to convey the material, resulting in a longer conveying distance and improving the drying effect.

[0034] See Figures 1-11 The tower conveyor also includes three conveyor rollers 3 arranged inside the drying chamber 1 to guide the movement of the conveyor belt 2. The three conveyor rollers 3 are arranged in a triangular pattern. By setting up three conveyor rollers 3, the conveyor belt 2 is connected to the conveyor rollers 3. The triangular arrangement of the three conveyor rollers 3 makes the conveyor belt 2 also triangular, thus forming a tower structure for the tower conveyor, which can greatly save horizontal space, occupy a small area, and make the structure more compact.

[0035] See Figures 1-11 The tower-type conveyor device also includes two triangular frames 4 installed inside the drying chamber 1. In this embodiment, the triangular frames 4 are formed by fixing triangular plates and triangular steel members. The bottom of the triangular frames 4 is installed at the bottom of the drying chamber 1, and the conveying rollers 3 are arranged between the two triangular frames 4. The positions of the three conveying rollers 3 correspond to the three vertices of the triangular frames 4, with one conveying roller 3 located at the top of the triangular frame 4 and the other two conveying rollers 3 located at the bottom of the triangular frame 4. By setting up the triangular frames 4, the conveying rollers 3 can be installed, making the structure very compact.

[0036] See Figures 1-11 The tower conveyor also includes a conveyor drive mechanism for driving one of the conveyor rollers 3 to rotate. The conveyor drive mechanism includes a conveyor motor 5 mounted on the drying chamber 1 and a chain drive mechanism 6 (chain not shown in the figure) that transmits the power of the conveyor motor 5 to the conveyor roller 3. The conveyor motor 5 can drive one conveyor roller 3 to rotate through the chain drive mechanism 6, thereby driving the conveyor belt 2 to move, and the remaining conveyor rollers 3 will rotate accordingly.

[0037] See Figures 1-11The drying device includes a fan 7 mounted on top of the drying chamber 1, vertically arranged air supply channels 8 on both sides of the drying chamber 1, and an electric heating mechanism 9 disposed between the fan 7 and the air supply channels 8. The air supply channels 8 have multiple through holes 11 on the side opposite to the conveyor belt 2. In this structure, the conveyor belt 2 continuously transports the printing substrate. The air generated by the fan 7 is heated by the electric heating mechanism 9, and then the hot air is transported downwards through the air supply channels 8. During this downward transport, the hot air flows out from the through holes 11, drying the ink on the printing substrate on the conveyor belt 2.

[0038] See Figure 8 The heating mechanism 9 is a heating tube.

[0039] See Figure 4 The air supply channel 8 is equipped with multiple inclined air guide plates 10 arranged vertically, with the inclination angle of the air guide plates 10 gradually decreasing from top to bottom. The air guide plates 10 are installed on one side of the air supply channel 8 where the through holes 11 are located. The inclination angle of the air guide plate 10 refers to the angle (acute angle) between the air guide plate 10 and the horizontal plane. Hot air from the air supply channel 8 is delivered from top to bottom. By setting the air guide plates 10, the hot air can be guided to the through holes 11, facilitating its flow out and blowing onto the substrate on the conveyor belt 2. The gradually decreasing inclination angle of the multiple air guide plates 10 from top to bottom causes the upper ends of the air guide plates 10 to be staggered, making it easier to guide the air to the through holes 11 and ensuring that hot air is blown out of all through holes 11. In this embodiment, there are a total of six air guide plates 10. Each air supply channel 8 has three air guide plates 10.

[0040] See Figures 1-8 The drying chamber 1 has a fan mounting cavity 12 at its top, and electric heating mechanism mounting cavities 13 on both sides of the fan mounting cavity 12. The fan 7 is mounted on the fan mounting cavity 12, and the two electric heating mechanisms 9 are respectively mounted in the two electric heating mechanism mounting cavities 13. The fan mounting cavity 12 and the electric heating mechanism mounting cavities 13 are connected, and the electric heating mechanism mounting cavities 13 are connected to the upper end of the air supply channel 8. By setting the above structure, it is convenient to install the fan 7 and the electric heating mechanisms 9, and at the same time, it is convenient to deliver hot air to the air supply channel 8. The air generated by the fan 7 is blown into the electric heating mechanism mounting cavities 13, heated by the electric heating mechanisms 9, and then flows downward from the upper end of the air supply channel 8.

[0041] See Figures 1-8The bottom of the fan mounting cavity 12 is provided with a return air inlet 14, which is installed at the top of the drying zone 19. The hot air blown onto the conveyor belt 2, after passing through the drying process, enters the fan mounting cavity 12 from the top return air inlet 14, and is then transported by the fan 7 to the electric heating mechanism mounting cavity 13, forming an air circulation conveying, which improves efficiency. The air that has passed through the drying process still retains residual heat, which is recycled through the return air inlet 14, saving energy.

[0042] See Figure 4 and Figure 8 There are two fans 7, and correspondingly, there are also two fan mounting cavities 12. Each fan 7 includes a blade assembly 7-1 disposed in the fan mounting cavity 12 and a motor 7-2 mounted on the top of the drying chamber 1 to drive the blade assembly 7-1 to move.

[0043] See Figures 1-6 The bottom of the drying chamber 1 is provided with an inlet 15 and an outlet 16. Guide plates 17 are provided on the side of the inlet 15 and outlet 16 near the conveyor belt. In this structure, the substrate after screen printing enters from the inlet 15 at the bottom of the drying chamber 1, is conveyed upwards at an angle close to one side of the conveyor belt 2, passes the highest point of the conveyor belt 2, and is then conveyed downwards at an angle along the other side of the conveyor belt 2, finally exiting from the outlet 16 at the bottom of the drying chamber 1, thus realizing the entry and exit of the substrate from the drying chamber 1. The guide plates 17 better guide the substrate, ensuring it adheres closely to the conveyor belt 2, thus facilitating substrate transport.

[0044] See Figures 4-11 The bottom of the two tripods 4 is equipped with tension rollers 18 for tensioning the conveyor belt. By setting the tension rollers 18, the conveyor belt can be tensioned and the tension of the conveyor belt can be adjusted.

[0045] See Figures 4-11The drying chamber 1 has a drying zone 19 inside, with air supply channels 8 located on both sides of the drying zone 19. The fan mounting cavity 12 and the electric heating mechanism mounting cavity 13 are both located at the top of the drying zone 19. The tower conveyor is installed in the drying zone 19, with the return air inlet 14 communicating with the drying zone 19 and the through hole 11 communicating with the drying zone 19. The space enclosed by the two tripods 4, the two sides of the conveyor belt, and the bottom of the drying chamber 1 is a triangular area 20, with a connecting opening 25 on one of the tripods 4. A blower 22 is installed at the bottom of the drying chamber 1, with one end of the blower 22 communicating with the drying zone 19 and the other end communicating with the triangular area 20. During drying, hot air flows into the drying zone 19 through the through-hole 11 to dry the ink on the substrate. The blower 22 operates, blowing hot air from the drying zone 19 into the triangular zone 20, thus circulating the air in the triangular zone 20. The hot air enters the triangular zone 20 and then enters the drying zone 19 through the connecting port 25, forming a circulation. This improves the hot air flow and drying effect, and also increases the temperature inside the conveyor belt 2, further enhancing the drying effect. The blower 22 can also blow air from the triangular zone 20 into the drying zone 19, allowing hot air from the drying zone 19 to enter the triangular zone 20 through the connecting port 25, also achieving air circulation and forming a cycle.

[0046] See Figures 4-8 The drying zone 19 is separated from the air supply channel 8, the fan mounting cavity 12 and the electric heating mechanism mounting cavity 13 by a plate. The through hole 11 and the return air port 14 are provided on the plate. The fan mounting cavity 12 and the electric heating mechanism mounting cavity 13 are also separated by a partition. The partition is provided with an exhaust port so that the fan mounting cavity 12 and the electric heating mechanism mounting cavity 13 can communicate. The two air supply channels 8, the fan mounting cavity 12 and the electric heating mechanism mounting cavity 13 are arranged to form an "n" shape.

[0047] See Figures 1-8 The drying chamber 1 is equipped with a base 21 at its bottom, with casters and foot supports on the base. The drying chamber 1 also has a cabinet door 23 for easy operation, inspection, and loading. The top of the drying chamber 1 is also equipped with an exhaust pipe 24, which connects to the fan mounting cavity 12.

[0048] In this embodiment, the substrate is roll material. After the roll material is screen printed by a screen printing machine, it enters a tower dryer for drying.

[0049] See Figures 1-11 The working principle of the above-mentioned tower dryer is as follows:

[0050] The conveyor belt 2 is triangularly distributed, giving it two sides and a bottom. The substrate enters from the bottom of the drying chamber 1, is conveyed upwards along one side of the conveyor belt 2, passes the highest point of the conveyor belt 2, and is then conveyed downwards along the other side of the conveyor belt 2, finally exiting from the bottom of the drying chamber 1. During the conveying process, the hot air generated by the drying device dries the ink on the substrate.

[0051] The above are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above content. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A tower dryer, characterized in that, The device includes a drying chamber, a tower conveyor installed inside the drying chamber for conveying the printed material, and a drying device for drying the ink on the printed material on the tower conveyor. The tower conveyor includes a conveyor belt that is triangularly distributed.

2. The tower dryer according to claim 1, characterized in that, The tower conveyor also includes three conveyor rollers arranged in a triangular pattern inside the drying chamber to guide the movement of the conveyor belt.

3. A tower dryer according to claim 2, characterized in that, The tower-type conveying device also includes two triangular frames installed inside the drying chamber; the bottom of the triangular frames is installed at the bottom of the drying chamber, and the conveying rollers are arranged between the two triangular frames, with the positions of the three conveying rollers corresponding to the three vertices of the triangular frames respectively.

4. A tower dryer according to claim 1, characterized in that, The drying device includes a fan installed at the top of the drying chamber, air supply channels installed vertically on both sides of the drying chamber, and an electric heating mechanism installed between the fan and the air supply channels; the air supply channels have multiple through holes on the side opposite to the conveyor belt.

5. A tower dryer according to claim 4, characterized in that, The air supply channel is equipped with multiple inclined air guide plates arranged vertically, with the inclination angle of the multiple air guide plates gradually decreasing from top to bottom.

6. A tower dryer according to claim 4, characterized in that, The top of the drying oven is provided with a fan mounting cavity, and the two sides of the fan mounting cavity are provided with electric heating mechanism mounting cavities. The fan is installed on the fan mounting cavity, and the two electric heating mechanisms are respectively installed in the two electric heating mechanism mounting cavities. The fan mounting cavity is connected to the electric heating mechanism mounting cavity, and the electric heating mechanism mounting cavity is connected to the upper end of the air supply channel.

7. A tower dryer according to claim 6, characterized in that, The bottom of the fan mounting cavity is provided with a return air inlet.

8. A tower dryer according to claim 1, characterized in that, The bottom of the drying chamber is provided with a feed inlet and a discharge outlet, and the feed inlet and discharge outlet are provided with guide plates on the side near the conveyor belt.

9. A tower dryer according to claim 2, characterized in that, The bottom of the two tripods is equipped with tensioning rollers for tensioning the conveyor belt.

10. A tower dryer according to claim 7, characterized in that, The drying oven has a drying zone inside, the tower conveyor is located in the drying zone, the return air vent is connected to the drying zone, and the through hole is connected to the drying zone; the space enclosed by the two tripods, the two sides of the conveyor belt and the bottom of the drying oven is a triangular area, one of the tripods has a connecting opening; the bottom of the drying oven is equipped with a blower, one end of which is connected to the drying zone and the other end of which is connected to the triangular area.

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