Manufacturing method of plastic dryer
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Manufacturing method of plastic dryer
The utility model relates to the technical field of plastic drying ovens, in particular to a plastic drying machine.
Background technique:
When the internal temperature of the plastic dryer in use is too high, it cannot control the temperature inside the drying box online, cannot realize automatic induction alarm shutdown, cannot effectively guarantee safe production, and cannot guarantee the service life of the dryer.
Technical realization elements:
The purpose of the present invention is to provide a plastic dryer to solve the problems raised in the background art.
In order to achieve the above objective, the present invention provides the following technical solutions: a plastic dryer, including a drying box, two rotating shafts are installed in parallel inside the drying box, and a plurality of stirring rods are evenly surrounded on the outer wall of the rotating shaft , One end of the two rotating shafts is aligned with a transmission pulley, and the two transmission pulleys are connected by a belt, a motor is installed on one side of the upper shaft, a temperature sensor is installed on the inner wall of the drying box, and the top of the drying box A box cover is provided, a negative pressure suction device is installed on the box cover, a suction pipe is connected to the negative pressure suction device, a backing plate is installed on one side wall of the drying box, and the backing plate A blower is installed, the air outlet of the blower is connected with an air heater, the air outlet of the air heater is connected to the wall of the drying box, and the side walls of the drying box are evenly surrounded by welding with three supporting legs, so A plc controller is installed on the side wall of the support leg, a display screen is installed on the plc controller, an alarm is installed on one side of the display screen, and the temperature sensor is electrically connected to the display screen and the alarm. The plc controller is electrically connected to the motor, air heater and blower.
Preferably, both ends of the bottom of the box cover are provided with clamping blocks, the top of the drying box is provided with grooves matching the clamping blocks, the clamping blocks are provided with through holes, and the bottom of the cover A vertical plate is arranged on the outer side of the clamping block, and a cylinder is installed on the vertical plate, and the telescopic rod of the cylinder penetrates the through hole on the clamping block.
Preferably, the lower end of the drying box has a tapered structure, and a valve is installed at the outlet of the drying box.
Compared with the prior art, the beneficial effect of the utility model is that the plastic dryer sucks the plastic to be dried into the drying box through the negative pressure suction device, and at this moment, the blower and the air heater are started to feed into the drying box. At the same time, start the motor to drive the stirring rod to rotate and stir the plastic to be dried, which can improve the drying effect. When the dryer of this utility model is in operation, because the temperature sensor is installed inside the drying box, when the internal temperature of the drying box reaches the temperature sensor setting At that time, the alarm starts to give an alarm and buzzes, and then the PLC controller controls the air heater, blower and motor to stop working.
The plastic dryer of the utility model can perform online temperature control during the working process. When the plastic dryer fails, it will automatically induce an alarm and shut down, effectively ensuring safe production, reducing labor intensity of workers, and ensuring the service life of the dryer.
Description of the drawings
Figure 1 is a schematic diagram of the structure of the utility model;
Figure 2 is a schematic diagram of the enlarged structure at a in Figure 1 of the utility model.
In the picture: 1. Drying box; 2. Motor; 3. Negative pressure suction device; 4. Box cover; 5. Blower; 6. Air heater; 7. Display; 8. Alarm; 9. PLC controller 10, support leg; 11, groove; 12, block; 13, cylinder; 14, rotating shaft; 15, vertical plate; 16, through hole; 17, stirring rod; 18, temperature sensor.
detailed description
The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.
Please refer to Figure 1-2, this utility model provides a technical solution: a plastic dryer, including a drying box 1, inside the drying box 1 is installed in parallel with two rotating shafts 14, the outer wall of the rotating shaft 14 evenly surrounding There are several stirring rods 17, two rotating shafts 14 are installed with transmission pulleys aligned at one end, and the two transmission pulleys are connected by belts, and a motor 2 is installed on one side of the upper rotating shaft 14. The inner wall of the drying box 1 A temperature sensor 18 is installed on the drying box 1, a box cover 4 is provided on the top of the drying box 1, a negative pressure suction device 3 is installed on the box cover 4, and a suction pipe is connected to the negative pressure suction device 3, A backing plate is installed on one side wall of the drying box 1, a blower 5 is installed on the backing plate, an air heater 6 is connected to the air outlet of the blower 5, and the air outlet of the air heater 6 is connected to the drying box. 1 is connected to the wall of the box, the side wall of the drying box 1 is evenly surrounded by welding with three supporting legs 10, the side wall of the supporting leg 10 is installed with a plc controller 9, and the plc controller 9 is installed with a display Screen 7, an alarm 8 is installed on one side of the display 7, the temperature sensor 18 is electrically connected to the display 7 and the alarm 8, and the plc controller 9 is electrically connected to the motor 2, the air heater 6 and Blower 5.
Specifically, both ends of the bottom of the box cover 4 are provided with clamping blocks 12, the top of the drying box 1 is provided with a groove 11 matching the clamping block 12, and the clamping block 12 is provided with a through hole 16 A vertical plate 15 is provided on the outer side of the bottom block 12 of the box cover 4, and a cylinder 13 is installed on the vertical plate 15, and the telescopic rod of the cylinder 13 penetrates the through hole 16 on the block 12.
Specifically, the lower end of the drying box 1 has a tapered structure, and a valve is installed at the outlet of the drying box 1.
In specific use, the plastic to be dried is sucked into the drying box 1 through the negative pressure suction device 3. At this moment, the blower 5 and the air heater 6 are started to send hot air into the drying box 1, and the motor 2 is started to drive the stirring rod 17 to rotate. Stirring the plastic to be dried can improve the drying effect. When the dryer of the present invention is working, since the temperature sensor 18 is arranged inside the drying box 1, when the internal temperature of the drying box 1 reaches the set value of the temperature sensor 18, the alarm 8 The alarm starts and the whistle sounds. After that, the plc controller 9 controls the air heater 6 and the blower 5, and the motor 2 stops working.
Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it will be understood that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present utility model,Replacements and modifications, the scope of the present invention is defined by the appended claims and their equivalents.
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