Drying oven

Abstract

The utility model discloses a drying oven which comprises a drying oven body, a heater, an air supply fan, a master controller and an exhaust pipeline. A product inlet and a product outlet which are opposite to each other are formed in the oven main body, an air inlet and an air outlet are further formed in the oven main body, the air inlet is connected with an air outlet pipeline of the heater through an air supply fan, and the air outlet is communicated with an air exhaust pipeline; an air inlet pipeline is arranged on the heater, an air inlet door and an air outlet door are arranged on the air inlet pipeline and the air outlet pipeline respectively, and door opening degree control pieces are arranged on the air inlet door and the air outlet door; the main controller is electrically connected with the air supply fan, the heater and the door opening degree control piece. The multi-angle temperature control device realizes multi-angle strict temperature control, and ensures that the drying degree of a product meets the requirement.

Description

Technical Field

[0001] The utility model relates to the technical field of ovens, in particular to an oven. Background Art

[0002] In the cigarette label printing process, gravure printing presses, as the vanguard, play a crucial role. Their production efficiency directly determines the output of the entire cigarette label production line. However, at higher printing speeds, gravure printing machines can suffer from quality defects such as misregistration, sticking, pitting, and small white spots.

[0003] Research has found that the main reason for these quality defects is poor drying of the product after passing through the oven. Existing ovens generally control the temperature by controlling the on and off of the heater. The factors considered are single, resulting in inaccurate temperature regulation. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a drying oven which can realize strict temperature control at multiple angles and ensure that the degree of drying of the product meets the requirements.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] An oven comprises an oven body, a heater, an air supply fan, a main controller and an exhaust duct;

[0007] The oven body is provided with a product inlet and a product outlet opposite to each other, and is also provided with an air inlet and an air outlet. The air inlet is connected to the air outlet pipe of the heater through the air supply fan, and the air outlet is connected to the exhaust pipe.

[0008] The heater is provided with an air inlet duct, the air inlet duct and the air exhaust duct are respectively provided with an air inlet door and an air exhaust door, and the air inlet door and the air exhaust door are both provided with a door opening degree control member;

[0009] The main controller is electrically connected to the air supply fan, the heater and the door opening degree control component respectively.

[0010] Furthermore, it also includes a return air duct;

[0011] The heater is provided with a return air port, the exhaust port is connected to the exhaust duct and the return air port through the return air duct, and the return air duct is provided with a return air door at a position between the exhaust duct and the heater;

[0012] The return air door is provided with the door opening and closing degree control component.

[0013] Furthermore, a temperature detector is provided in the oven body, and the temperature detector is electrically connected to the main controller.

[0014] Furthermore, it also includes a guide rod;

[0015] The guide rod is located in the oven body, one end of the guide rod is connected to the side of the product inlet away from the air inlet door, and one end of the guide rod is connected to the side of the product outlet away from the air inlet door.

[0016] Furthermore, there are at least two guide rods, and adjacent guide rods are parallel to each other and the spacing between them is adjustable.

[0017] Furthermore, an occlusion sensor is included;

[0018] The blocking sensor is arranged on the outward side of the product inlet, and the blocking sensor is electrically connected to the main controller.

[0019] Furthermore, the main controller is provided with door opening degree control buttons corresponding one to one with the door opening degree control members.

[0020] Furthermore, a transmission component is provided in the oven body;

[0021] The transmission component is installed between the product inlet and the product outlet, and the transmission direction of the transmission component is from the product inlet to the product outlet.

[0022] Furthermore, at least two air nozzles are provided in the oven body;

[0023] All the air nozzles are distributed around the transmission surface of the transmission component, and the air inlet is connected to all the air nozzles.

[0024] The beneficial effects of the present invention are as follows: providing an oven, in which the air introduced from the air inlet duct is heated by a heater, and the hot air is then sent to the oven body by an air supply fan for drying the products. During this process, a main controller is used to simultaneously control the heater and the door opening and closing control components on the air door and the exhaust door, so as to precisely control the parameters affecting the drying effect, such as the heating temperature, the power of the air supply fan, the opening and closing of the air inlet door, and the opening and closing of the exhaust door, thereby achieving strict temperature control from multiple angles and ensuring that the degree of drying of the products meets the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural diagram of an oven according to the present invention;

[0026] Figure 2 This is a schematic diagram of the position of a guide rod of an oven in the main body of the oven according to the present invention;

[0027] Figure 3This is a schematic diagram of the positional relationship between a transmission component and an air nozzle of an oven in the oven body of the present invention.

[0028] Description of labels:

[0029] 1. Oven body; 2. Heater; 3. Supply air blower; 4. Main controller; 5. Exhaust duct; 6. Product inlet; 7. Product outlet; 8. Air inlet duct; 9. Air inlet door; 10. Exhaust door; 11. Return air duct; 12. Return air door; 13. Guide rod; 14. Transmission component; 15. Nozzle. DETAILED DESCRIPTION

[0030] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

[0031] Please refer to Figures 1 to 3 , an oven, comprising an oven body 1, a heater 2, an air supply fan 3, a main controller 4 and an exhaust duct 5;

[0032] The oven body 1 is provided with a product inlet 6 and a product outlet 7 opposite to each other, and is also provided with an air inlet and an air outlet. The air inlet is connected to the air outlet pipe of the heater 2 through the air supply fan 3, and the air outlet is connected to the exhaust pipe 5.

[0033] The heater 2 is provided with an air inlet duct 8, and the air inlet duct 8 and the exhaust duct 5 are respectively provided with an air inlet door 9 and an exhaust door 10, and the air inlet door 9 and the exhaust door 10 are both provided with a door opening degree control member;

[0034] The main controller 4 is electrically connected to the air supply fan 3 , the heater 2 and the door opening degree control component respectively.

[0035] From the above description, it can be seen that the beneficial effect of the utility model is that: an oven is provided, in which the air introduced from the air inlet duct 8 is heated by the heater 2, and the hot air is sent to the oven body by the air supply fan 3 for drying the products. In this process, the main controller 4 is used to simultaneously control the heater 2 and the door opening and closing control parts on the air door and the exhaust door 10, so as to precisely control the parameters affecting the drying effect such as the heating temperature, the power of the air supply fan 3, the opening and closing of the air inlet door 9 and the opening and closing of the exhaust door 10, thereby achieving strict temperature control from multiple angles to ensure that the dryness of the product meets the requirements.

[0036] Furthermore, it also includes a return air duct 11;

[0037] The heater 2 is provided with a return air port, and the exhaust port is connected to the exhaust duct 5 and the return air port through the return air duct 11. The return air duct 11 is provided with a return air door 12 at a position between the exhaust duct 5 and the heater 2;

[0038] The return air door 12 is provided with the door opening degree control component.

[0039] From the above description, it can be seen that the return air duct 11 is provided to circulate hot air between the heater 2 and the oven body, thereby increasing air fluidity and improving the drying effect. At the same time, a door opening and closing degree control component is provided corresponding to the return air door 12 to strictly control the opening and closing degree of the return air door 12 to ensure precise temperature control.

[0040] Furthermore, a temperature detector is provided in the oven main body 1 , and the temperature detector is electrically connected to the main controller 4 .

[0041] From the above description, it can be seen that by setting a thermometer, the temperature changes in the drying box can be detected in real time, so as to explore the influence of parameters such as the power of the air supply fan 3, the opening and closing degree of the air inlet door 9, and the opening and closing degree of the exhaust door 10 on the temperature, and provide a reliable control basis for variables such as the opening and closing degree of the air inlet door 9 and the opening and closing degree of the exhaust door 10.

[0042] Furthermore, it also includes a guide rod 13;

[0043] The guide rod 13 is located in the oven body 1 , and one end of the guide rod 13 is connected to a side of the product inlet 6 away from the air inlet door 9 , and one end of the guide rod 13 is connected to a side of the product outlet 7 away from the air inlet door 9 .

[0044] From the above description, it can be seen that by setting the guide rod 13, the products entering the oven body 1 can be limited, so as to avoid the situation where some products are displaced in position due to the influence of the hot air from the air inlet just after entering the oven body 1, and then have difficulty leaving the oven body 1 from the product outlet 7.

[0045] Furthermore, there are at least two guide rods 13 , and adjacent guide rods 13 are parallel to each other and the spacing between them is adjustable.

[0046] As can be seen from the above description, adjacent guide rods 13 are parallel to each other and the spacing is adjustable, so as to cope with products of different widths, adaptively provide a limiting function, and improve the flexibility of the device.

[0047] Furthermore, an occlusion sensor is included;

[0048] The blocking sensor is arranged on the outward side of the product inlet 6 , and the blocking sensor is electrically connected to the main controller 4 .

[0049] From the above description, it can be seen that by setting an occlusion sensor at the product inlet 6, the initial entry of the product into the oven body 1 can be detected, so as to facilitate the subsequent recording of data such as the drying time of the product, which is suitable for the drying process of batch products.

[0050] Furthermore, the main controller 4 is provided with door opening degree control buttons corresponding one to one with the door opening degree control elements.

[0051] From the above description, it can be seen that by setting the door opening and closing degree control button, the operation process is simplified and the operation difficulty is reduced.

[0052] Furthermore, a transmission component 14 is provided in the oven body 1;

[0053] The transmission component 14 is installed between the product inlet 6 and the product outlet 7 , and the transmission direction of the transmission component 14 is from the product inlet 6 to the product outlet 7 .

[0054] As can be seen from the above description, the transmission assembly 14 is provided in the oven body 1 to assist in transporting the products, allowing them to smoothly enter and exit the oven body 1, thereby improving the efficiency of batch drying operations.

[0055] Furthermore, at least two air nozzles 15 are provided in the oven body 1;

[0056] All of the air nozzles 15 are distributed around the transmission surface of the transmission component 14 , and the air inlet is connected to all of the air nozzles 15 .

[0057] As can be seen from the above description, multiple air nozzles 15 are provided to deliver hot air to the products on the transmission assembly from multiple angles, thereby achieving uniform drying and improving drying efficiency.

[0058] Please refer to Figure 1 and Figure 2 , the first embodiment of the present utility model is:

[0059] An oven comprises an oven body 1, a heater 2, an air supply fan 3, a main controller 4 and an exhaust duct 5; the oven body 1 is provided with a relative product inlet 6 and a product outlet 7, and the oven body 1 is also provided with an air inlet and an exhaust duct, the air inlet is connected to the air outlet duct of the heater 2 through the air supply fan 3, and the exhaust duct is connected to the exhaust duct 5; the heater 2 is provided with an air inlet duct 8, and the air inlet duct 8 and the exhaust duct 5 are respectively provided with an air inlet door 9 and an exhaust door 10, and the air inlet door 9 and the exhaust door 10 are both provided with a door opening and closing degree control component; the main controller 4 is electrically connected to the air supply fan 3, the heater 2 and the door opening and closing degree control component.

[0060] Not only that, the heater 2 is provided with a return air outlet, and the exhaust outlet is connected to the exhaust duct 5 and the return air outlet at the same time through the return air duct 11. A return air door 12 is provided on the return air duct 11 between the exhaust duct 5 and the heater 2; the return air door 12 is provided with a door opening and closing control component, and the main controller 4 is provided with a door opening and closing control button corresponding to the door opening and closing control component.

[0061] In this embodiment, if Figure 1 As shown, the oven adopts a hot air circulation dual oven design. The product passes between the product inlet 6 and the product outlet 7 of the oven body 1. The heater 2 is an 80kW electric heater, which can provide hot air to the oven at a maximum temperature of 130°C. The opening and closing control elements of the air inlet door 9, the exhaust door 10, and the return air door 12 are preferably electric valve-controlled, and the air supply fan 3 adopts variable frequency control. Therefore, the oven operates as follows:

[0062] Turn on the oven power, set the desired temperature on the main controller 4, and start the heater 2 and air supply fan 3. Room-temperature air enters the heater 2 through the air inlet door 9, and the air supply fan 3 transports the heated air from the heater 2 to the oven. The air then returns to the heater 2 through the return air duct or is discharged through the exhaust duct. The main controller 4 allows you to adjust parameters such as the opening and closing degree of the air inlet door 9, the opening and closing degree of the exhaust door 10, the opening and closing degree of the return air door 12, and the speed of the air supply fan 3 to adjust the dwell time and uniformity of the hot air in the oven. The opening and closing degree of the air inlet door 9, the opening and closing degree of the exhaust door 10, the opening and closing degree of the return air door 12, and the speed of the air supply fan 3 for each color group are adjusted according to the different ink characteristics, ensuring that the ink dries quickly after passing through the oven at high speed.

[0063] The main controller 4 is preferably a PLC controller equipped with a touch screen. It centrally controls the air inlet door 9, exhaust door 10, return air door 12, and supply fan 3. A temperature sensor is also provided within the oven body 1 and is electrically connected to the main controller 4. This temperature sensor can be used to verify the results of adjustments to other parameters.

[0064] In this embodiment, if Figure 2 As shown, the oven body 1 further includes a guide rod 13. The guide rod 13 is located within the oven body 1. One end of the guide rod 13 is connected to the side of the product inlet 6 away from the air inlet door 9. Another end of the guide rod 13 is connected to the side of the product outlet 7 away from the air inlet door 9. There are at least two guide rods 13, and adjacent guide rods 13 are parallel to each other and have an adjustable spacing.

[0065] In this embodiment, the blocking sensor is disposed on the outward side of the product inlet 6 , and the blocking sensor is electrically connected to the main controller 4 .

[0066] Please refer to Figure 3 , the second embodiment of the present utility model is:

[0067] An oven, based on the first embodiment, further comprises a transmission assembly 14 disposed within the oven body 1; the transmission assembly 14 is mounted between the product inlet 6 and the product outlet 7, and the transmission direction of the transmission assembly 14 is from the product inlet 6 to the product outlet 7. The oven body 1 is further provided with at least two air nozzles 15; all of the air nozzles 15 are distributed around the transmission surface of the transmission assembly 14, and the air inlet is connected to all of the air nozzles 15.

[0068] The transmission assembly 14 preferably uses a belt transmission structure composed of a transmission belt and a transmission roller to transport the product. All the air nozzles 15 can be symmetrically distributed relative to the entire transmission assembly 14.

[0069] The utility model provides an oven, in which air introduced from an air inlet duct is heated by a heater, and then the hot air is sent to the oven body by an air supply fan for drying products. During this process, a main controller is used to simultaneously control the heater and the door opening and closing control components on the air door and the exhaust door, so as to precisely control the heating temperature, the power of the air supply fan, the opening and closing of the air inlet door, and the opening and closing of the exhaust door, which are parameters affecting the drying effect, thereby achieving strict temperature control from multiple angles. At the same time, a transmission component and a surrounding air nozzle combination can be provided to improve the drying efficiency and ensure that the degree of drying of the product meets the requirements.

[0070] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the description and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. An oven, characterized in that: Including oven body, heater, air supply fan, main controller and exhaust duct; The oven body is provided with a product inlet and a product outlet opposite to each other, and is also provided with an air inlet and an air outlet. The air inlet is connected to the air outlet pipe of the heater through the air supply fan, and the air outlet is connected to the exhaust pipe. The heater is provided with an air inlet duct, the air inlet duct and the exhaust duct are respectively provided with an air inlet door and an exhaust door, and the air inlet door and the exhaust door are both provided with a door opening degree control member; The main controller is electrically connected to the air supply fan, the heater and the door opening degree control component respectively.

2. An oven according to claim 1, characterized in that: Also includes return air ducting; The heater is provided with a return air port, the exhaust port is connected to the exhaust duct and the return air port through the return air duct, and the return air duct is provided with a return air door at a position between the exhaust duct and the heater; The return air door is provided with the door opening and closing degree control component.

3. The oven according to claim 1, characterized in that: A temperature detector is provided in the oven body, and the temperature detector is electrically connected to the main controller.

4. The oven according to claim 1, characterized in that: Also included are guide rods; The guide rod is located in the oven body, one end of the guide rod is connected to the side of the product inlet away from the air inlet door, and one end of the guide rod is connected to the side of the product outlet away from the air inlet door.

5. An oven according to claim 4, characterized in that: There are at least two guide rods, and adjacent guide rods are parallel to each other and the spacing between them is adjustable.

6. The oven according to claim 1, characterized in that: Also includes occlusion sensor; The blocking sensor is arranged on the outward side of the product inlet, and the blocking sensor is electrically connected to the main controller.

7. The oven according to claim 1, characterized in that: The main controller is provided with door opening degree control buttons corresponding one to one with the door opening degree control elements.

8. The oven according to claim 1, characterized in that: A transmission component is also provided in the oven body; The transmission component is installed between the product inlet and the product outlet, and the transmission direction of the transmission component is from the product inlet to the product outlet.

9. An oven according to claim 8, characterized in that: At least two air nozzles are also provided in the oven body; All the air nozzles are distributed around the transmission surface of the transmission component, and the air inlet is connected to all the air nozzles.

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