Multi-section radio frequency drying machine material position determination and prompting device

Abstract

The utility model provides a kind of multi-section radio frequency drying machine material position determination and prompting device, comprising: material conveying belt, material is placed on material conveying belt, the material conveying belt is installed in drying storehouse I, drying storehouse II, and radio frequency generator device is equipped in the upper end of drying storehouse I, drying storehouse II, a photoelectric switch is installed at the entrance of material conveying belt, to detect whether there is material into dryer, a disc with hole is installed on supporting roller and follows rotating shaft rotation, there is a proximity switch to detect the rotation of disc, the signal of photoelectric switch and proximity switch is accessed PLC, touch control device is equipped on drying storehouse I, drying storehouse II, and drying storehouse prompt light is equipped on the touch control device.The utility model detects material position by photoelectric switch and proximity switch and the like sensor, prompts material to enter corresponding drying storehouse position, facilitates operator to start or stop machine in time, improves drying quality, avoids generator invalid work energy consumption time.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency drying technology, specifically a material position determination and indication device for a multi-section radio frequency dryer. Background Technology

[0002] Because the power of a single RF generator in an RF dryer is limited (typically 85KW per drying chamber), increasing the power requires designing multiple drying chambers as a modular structure and then connecting them in series. Each drying chamber module is typically 4m long. With multiple modules connected in series, the machine becomes very long. After the material enters the dryer via the conveyor belt, the RF generator for that section needs to be manually activated when it reaches the next drying chamber. However, due to the distance, operators cannot easily observe the exact position of the material and cannot start or stop the generator in time, resulting in wasted energy and even affecting drying quality. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a material position determination and indication device for a multi-section radio frequency dryer, so as to solve the problems mentioned in the background art.

[0004] The technical problem solved by this utility model is achieved by the following technical solution: a multi-section radio frequency dryer material position determination and indication device, comprising: a material conveyor belt, on which materials are placed, the material conveyor belt being installed in drying chamber I and drying chamber II, radio frequency generator devices being provided at the upper ends of drying chamber I and drying chamber II, drying chamber I and drying chamber II being connected in series, one end of the material conveyor belt being installed on the drying support frame via a drive roller, and the other end of the material conveyor belt being installed on the drying support frame via a support roller, a photoelectric switch being installed at the inlet of the material conveyor belt to detect whether materials have entered the dryer, a perforated disc being installed on the support roller and rotating with the rotating shaft, a proximity switch being used to detect the rotation of the disc, and a signal being sent when each hole is detected, the signals from the photoelectric switch and the proximity switch being connected to a PLC, and a touch control device being provided on drying chamber I and drying chamber II, the touch control device being provided with a drying chamber indicator light.

[0005] Furthermore, the photoelectric switch is mounted on the drying support frame via a switch fixing bracket, and the radio frequency generator device is mounted on the drying support frame via fixing bolts.

[0006] Furthermore, the lower end of the drying support frame is provided with several adjustable support feet, each of which includes a lower support pad. An adjusting support screw is provided at the middle of the upper end of the lower support pad. An adjusting support nut is installed at the upper end of the adjusting support screw, and the adjusting support nut is fixedly installed on the drying support frame.

[0007] Furthermore, material guiding devices are provided on both sides of the material conveyor belt, and the material guiding devices are installed on the drying support frame by fixing bolts.

[0008] Furthermore, the drying chamber I and the drying chamber II are connected and fixed together by quick-connect fasteners, and a sealing device is provided between the drying chamber I and the drying chamber II.

[0009] Compared with the prior art, the beneficial effects of this utility model are: this utility model uses sensors such as photoelectric switches and proximity switches to detect the position of materials, prompting the materials to enter the corresponding drying chamber position, which makes it convenient for operators to start or stop the machine in a timely manner, improves the drying quality, and avoids the energy-consuming time of the generator working ineffectively. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0011] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection between the internal parts of two components.

[0012] Example 1

[0013] like Figure 1 As shown, a multi-section radio frequency dryer material position determination and indication device includes: a material conveyor belt 5, on which material 4 is placed; the material conveyor belt 5 is installed in drying chambers I7 and II8; a radio frequency generator device 9 is installed on the upper end of drying chambers I7 and II8; drying chambers I7 and II8 are connected in series; one end of the material conveyor belt 5 is installed on the drying support frame via a drive roller 6, and the other end of the material conveyor belt 5 is installed on the drying support frame via a support roller 2; a photoelectric switch 1 is installed at the inlet of the material conveyor belt 5 to detect whether material has entered the dryer; a perforated disc is installed on the support roller 2 and rotates with the rotating shaft; a proximity switch 3 detects the rotation of the disc; a signal is sent when each hole is detected; the signals from the photoelectric switch 1 and the proximity switch 3 are connected to a PLC; a touch control device is installed on drying chambers I7 and II8, and the touch control device is equipped with a drying chamber indicator light; the photoelectric switch 1 is installed on the drying support frame via a switch fixing bracket, and the radio frequency generator device 9 is installed on the drying support frame via fixing bolts.

[0014] Example 2

[0015] like Figure 1 As shown, the multi-section radio frequency dryer material position determination and indication device includes: a material conveyor belt 5, on which material 4 is placed; the material conveyor belt 5 is installed in drying chambers I7 and II8; radio frequency generator devices 9 are provided on the upper ends of drying chambers I7 and II8; drying chambers I7 and II8 are connected in series; one end of the material conveyor belt 5 is installed on the drying support frame via a drive roller 6; the other end of the material conveyor belt 5 is installed on the drying support frame via a support roller 2; a photoelectric switch 1 is installed at the inlet of the material conveyor belt 5 to detect whether material has entered the dryer; a perforated disc is installed on the support roller 2 and rotates with the rotating shaft; a proximity switch 3 detects the rotation of the disc; a signal is sent when each hole is detected; the signals from the photoelectric switch 1 and the proximity switch 3 are connected to a PLC; a touch control device is provided on drying chambers I7 and II8, and the touch control device is equipped with a drying chamber indicator light. The lower end of the drying support frame is provided with a plurality of adjustable support feet 10. Each adjustable support foot 10 includes a lower support pad. An adjustable support screw is provided at the middle of the upper end of the lower support pad. An adjustable support nut is installed at the upper end of the adjustable support screw. The adjustable support nut is fixedly installed on the drying support frame.

[0016] Example 3

[0017] like Figure 1 As shown, the multi-section radio frequency dryer material position determination and indication device includes: a material conveyor belt 5, on which material 4 is placed; the material conveyor belt 5 is installed in drying chambers I7 and II8; radio frequency generator devices 9 are installed on the upper ends of drying chambers I7 and II8; drying chambers I7 and II8 are connected in series; one end of the material conveyor belt 5 is installed on the drying support frame via a drive roller 6; the other end of the material conveyor belt 5 is installed on the drying support frame via a support roller 2; a photoelectric switch 1 is installed at the inlet of the material conveyor belt 5 to detect whether material has entered the dryer; a perforated disc is installed on the support roller 2 and rotates with the rotating shaft; a proximity switch 3 detects the rotation of the disc; a signal is sent when each hole is detected; the signals from the photoelectric switch 1 and the proximity switch 3 are connected to a PLC; a touch control device is installed on drying chambers I7 and II8, and the touch control device is equipped with a drying chamber indicator light; material guide devices 11 are provided on both sides of the material conveyor belt 5, and the material guide devices 11 are installed on the drying support frame by fixing bolts.

[0018] Example 4

[0019] like Figure 1As shown, the multi-section radio frequency dryer material position determination and indication device includes: a material conveyor belt 5, on which material 4 is placed; the material conveyor belt 5 is installed in drying chambers I7 and II8; radio frequency generator devices 9 are installed on the upper ends of drying chambers I7 and II8; drying chambers I7 and II8 are connected in series; one end of the material conveyor belt 5 is installed on the drying support frame via a drive roller 6, and the other end of the material conveyor belt 5 is installed on the drying support frame via a support roller 2; a photoelectric switch 1 is installed at the inlet of the material conveyor belt 5 to detect whether material has entered the dryer; a perforated disc is installed on the support roller 2 and rotates with the rotating shaft; a proximity switch 3 detects the rotation of the disc; a signal is sent when each hole is detected; the signals from the photoelectric switch 1 and the proximity switch 3 are connected to a PLC; a touch control device is installed on drying chambers I7 and II8, and the touch control device is equipped with a drying chamber indicator light; drying chambers I7 and II8 are connected and fixed by quick-connect fasteners, and a sealing device is provided between drying chambers I7 and II8.

[0020] The working principle of this invention is as follows: A photoelectric switch is installed at the inlet of the radio frequency dryer to detect whether material is entering the dryer. A perforated disc is installed on the conveyor belt drive shaft and rotates with the shaft. A proximity switch detects the rotation of the disc, sending a signal when each hole is detected. The signals from the photoelectric switch and the proximity switch are connected to the PLC. When the photoelectric switch detects material, the material is fed into the dryer as the conveyor belt rotates. The PLC counts the distance the conveyor belt travels based on the signal input from the proximity switch. When the material enters the range of drying chamber #1, the PLC outputs a signal to illuminate the indicator light for drying chamber #1 on the touchscreen, reminding the operator to start the radio frequency generator in drying chamber #1. When the material moves to the range of drying chamber #2, the indicator light for drying chamber #2 is illuminated. When the tail of the material leaves the corresponding drying chamber range, the corresponding indicator light goes out, reminding the operator to turn off the corresponding radio frequency generator. This allows for timely indication of the material's position within the drying chamber and provides prompt signals, enabling timely activation and deactivation of the radio frequency generator, improving drying efficiency and quality, reducing the ineffective working time of the radio frequency generator, saving energy, and extending the generator's service life.

[0021] This invention involves installing a photoelectric sensor switch at the inlet of an RF dryer to detect materials. A perforated disc is mounted on the conveyor belt drive shaft, and a proximity switch detects the number of rotations of the disc, sending the detected signal to a PLC. After the photoelectric sensor detects the material, the distance traveled by the conveyor belt in time is determined by counting the signals from the proximity switch, thus indicating the position of the material entering the dryer. When the material enters the corresponding drying chamber, a corresponding indicator light on the machine's touchscreen illuminates, reminding the operator to start the RF generator. When the material leaves the corresponding drying chamber, the indicator light goes out, indicating that the RF generator can be turned off.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-station radio frequency dryer material position determination and prompting device, comprising: Material conveyor belt (5), material (4) is placed on material conveyor belt (5), characterized in that: the material conveyor belt (5) is installed in drying chamber I (7) and drying chamber II (8), the upper end of drying chamber I (7) and drying chamber II (8) is provided with radio frequency generator device (9), drying chamber I (7) and drying chamber II (8) are connected in series, one end of the material conveyor belt (5) is installed on the drying support frame through drive roller (6), the other end of the material conveyor belt (5) is installed on the drying support frame through support roller (2), a photoelectric switch (1) is installed at the entrance of the material conveyor belt (5) to detect whether there is material entering the dryer, a perforated disc is installed on the support roller (2) to follow the rotating shaft to rotate, a proximity switch (3) is used to detect the rotation of the disc, and a signal is sent when each hole is detected, the signals of photoelectric switch (1) and proximity switch (3) are connected to PLC, a touch control device is provided on drying chamber I (7) and drying chamber II (8), and a drying chamber indicator light is provided on the touch control device.

2. The multi-section radio frequency dryer material position determination and prompting device according to claim 1, characterized in that: The photoelectric switch (1) is mounted on the drying support frame via a switch fixing bracket, and the radio frequency generator device (9) is mounted on the drying support frame via fixing bolts.

3. The multi-section radio frequency dryer material position determination and prompting device according to claim 1, characterized in that: The lower end of the drying support frame is provided with several adjustable support feet (10). Each adjustable support foot (10) includes a lower support pad. An adjustable support screw is provided at the middle of the upper end of the lower support pad. An adjustable support nut is installed at the upper end of the adjustable support screw. The adjustable support nut is fixedly installed on the drying support frame.

4. The multi-section radio frequency dryer material position determination and prompting device according to claim 1, characterized in that: Material guiding devices (11) are provided on both sides of the material conveyor belt (5), and the material guiding devices (11) are installed on the drying support frame by fixing bolts.

5. The multi-section radio frequency tanner material position determining and prompting device according to claim 1, characterized in that: The drying chamber I (7) and drying chamber II (8) are connected and fixed by quick-connect fasteners, and a sealing device is provided between the drying chamber I (7) and drying chamber II (8).

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