Electric heating constant temperature blast drying oven

Abstract

The utility model discloses an electric heating constant temperature air blast drying box, including drying box, the front side swing hinged of drying box has the door, the drying box is vertically equidistant and is provided with a plurality of material turnover subassembly, the right side fixed mounting of drying box is connected with a plurality of material turnover subassembly respectively's servo motor, the right side fixed mounting of drying box is located servo motor front's controller, the bottom fixed mounting of drying box has the air blast subassembly, the material turnover subassembly includes the X -shaped frame. The electric heating constant temperature air blast drying box, through the medicine material to be dried is placed on the lower net board in the material placing tray, the pressing net board is inserted into the material placing tray from the material placing tray top and presses on the medicine material top, pushes into the clamping groove, rotates the bolt rod and presses the pressing net board and presses the medicine material, and vice versa operation can be convenient and the medicine material is taken out and is poured out, and the medicine material is convenient to take and place, and the use efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of medicinal material drying and processing technology, specifically to an electric heating constant temperature forced-air drying oven. Background Technology

[0002] A blower dryer is a mechanical device that uses heat energy to reduce the moisture content of materials. It is used to dry objects. The dryer heats the material to vaporize and release the moisture, thereby obtaining a solid content of a specified amount. Electric heating constant temperature blower dryers have the advantages of low drying temperature, fast drying speed, and less deterioration of dried items. In the processing of medicinal materials, an external airflow is introduced into the heating resistance box by a blower. The resistance heating wire in the heating resistance box heats the airflow, and the heated airflow enters the drying box. This method can heat and dry irregularly shaped medicinal materials.

[0003] The existing patent authorization announcement number CN221944768U discloses an electric heating constant temperature blower drying oven. The rotating adjustment block adjusts the double-headed screw, adjusts the distance between the two placement plates, places the part to be dried between the two placement plates and presses it, drives the rotating motor to drive the two placement plates to flip, and drives the part to be dried to rotate through the flipping of the placement plates, so that the part to be dried is heated evenly.

[0004] In the aforementioned patent, the herbs to be dried need to be manually placed between two placement plates, clamped, and then removed after drying. The operation needs to be completed inside the box, which is quite troublesome for handling small-volume, large-quantity herbs, making it inconvenient to handle the herbs and reducing the drying efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an electric heating constant temperature forced air drying oven to solve the problem mentioned in the background art that it is troublesome to handle and place small-volume, large-quantity medicinal materials, which reduces the drying efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric heating constant temperature forced air drying oven, comprising a drying oven, a door hinged to the front of the drying oven, multiple material turning components arranged vertically and equidistantly inside the drying oven, a servo motor fixedly installed on the right side of the drying oven and connected to the multiple material turning components, a controller fixedly installed on the right side of the drying oven in front of the servo motor, and a forced air assembly fixedly installed at the bottom of the drying oven; the material turning component comprises a U-shaped frame, two rotating shafts fixedly connected to the left and right sides of the U-shaped frame, the two rotating shafts being rotatably connected to the left and right side walls inside the drying oven, the servo motor being connected to the rotating shaft on the right side, a slot with a front opening being opened inside the U-shaped frame, a material feeding tray being movably engaged inside the slot, a lower screen plate being fixedly installed at the bottom of the material feeding tray, a pressing screen plate being movably engaged inside the material feeding tray above the lower screen plate, and bolt rods symmetrically arranged on the left and right sides being threaded to the top of the U-shaped frame, the lower ends of the bolt rods abutting against the top of the pressing screen plate.

[0007] Preferably, the height of the feeding tray is less than the height of the slot, and the front side of the U-shaped frame is fixedly connected with symmetrically arranged stop blocks.

[0008] Preferably, a handwheel is fixedly connected to the top of the bolt rod, and the bolt rod is centered at the front and back.

[0009] Preferably, a handle covered with heat-resistant material is fixedly installed on the front side of the feeding tray.

[0010] Preferably, the blower assembly includes a heating chamber and a blower fixedly installed at the bottom of the drying chamber. The blower is connected to the heating chamber via a pipe. Air supply pipes located on the left and right sides of the drying chamber are fixedly connected to both sides of the heating chamber. A blower branch pipe penetrating the drying chamber and located inside the drying chamber is fixedly connected to the outer wall of the air supply pipe. A heating resistance wire is fixedly installed inside the heating chamber. An exhaust fan communicating with the inside of the drying chamber is fixedly installed on the top of the drying chamber.

[0011] Preferably, the air blowing branch pipes are arranged vertically at equal intervals corresponding to the number of material turning components, and one end of the air blowing branch pipe inside the drying box is inclined upwards.

[0012] Preferably, a temperature sensor is fixedly installed on the right side inside the drying chamber.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By placing the herbs to be dried on the lower mesh plate in the feeding tray, inserting the pressing mesh plate from above the feeding tray and pressing it on top of the herbs, pushing the feeding tray into the slot, and rotating the bolt rod to press down the pressing mesh plate to tighten the herbs, the opposite operation can be used to easily remove the feeding tray and pour out the herbs, making it convenient to pick up and put down the herbs and improving the efficiency of use.

[0015] 2. After being drawn in by the blower, external air enters the heating chamber and is heated by the heating resistance wire. Then, it is delivered to the blowing branch pipe through the air supply pipe. The blowing branch pipe is located below multiple turning components and blows the air evenly to ensure that the multiple turning components are dried evenly. At the same time, the dehumidification fan can remove the floating moisture to ensure the drying effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the drying oven of this utility model;

[0018] Figure 3 This is an exploded view of the structure of the material turning assembly of this utility model;

[0019] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the three-dimensional structure at point A;

[0020] Figure 5 This is a schematic diagram of the blower assembly of this utility model.

[0021] In the diagram: 1. Drying oven; 2. Oven door; 3. Material turning assembly; 31. U-shaped frame; 32. Rotating shaft; 33. Card slot; 34. Feeding tray; 35. Lower screen plate; 36. Pressing screen plate; 37. Bolt rod; 38. Stop block; 4. Servo motor; 5. Controller; 6. Blower assembly; 61. Heating box; 62. Blower; 63. Air supply pipe; 64. Air blowing branch pipe; 65. Heating resistance wire; 66. Exhaust fan; 7. Temperature sensor. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4This utility model provides a technical solution: an electric heating constant temperature forced-air drying oven, including a drying oven 1, a door 2 hinged to the front of the drying oven 1, multiple material turning components 3 vertically and equidistantly arranged inside the drying oven 1, a servo motor 4 fixedly installed on the right side of the drying oven 1 and connected to the multiple material turning components 3 respectively, a controller 5 fixedly installed on the right side of the drying oven 1 in front of the servo motor 4, and a forced-air assembly 6 fixedly installed at the bottom of the drying oven 1; the material turning component 3 includes a U-shaped frame 31, two rotating shafts 32 fixedly connected to the left and right sides of the U-shaped frame 31 respectively, the two rotating shafts 32 being rotatably connected to the left and right side walls inside the drying oven 1 respectively, the servo motor 4 being connected to the rotating shaft 32 located on the right side, and a slot 3 with a front opening opened inside the U-shaped frame 31. 3. A feeding tray 34 is movably engaged inside the slot 33. A lower mesh plate 35 is fixedly installed at the bottom of the feeding tray 34. A pressing mesh plate 36 located above the lower mesh plate 35 is movably engaged inside the feeding tray 34. A bolt rod 37 symmetrically arranged on the left and right sides is threaded to the top of the U-shaped frame 31. The lower end of the bolt rod 37 abuts against the top of the pressing mesh plate 36. By placing the medicinal materials to be dried on the lower mesh plate 35 inside the feeding tray 34, the pressing mesh plate 36 is inserted from above the feeding tray 34 and pressed onto the medicinal materials. The feeding tray 34 is pushed into the slot 33, and the bolt rod 37 is rotated to press down the pressing mesh plate 36 to tighten the medicinal materials. The opposite operation can remove the feeding tray 34 to pour out the medicinal materials, thereby facilitating the handling of medicinal materials and improving efficiency.

[0024] The height of the feeding tray 34 is less than the height of the slot 33. The front side of the U-shaped frame 31 is fixedly connected with symmetrically arranged stop blocks 38. The two stop blocks 38 are located on the left and right sides of the opening of the slot 33, respectively. When the feeding tray 34 is pushed into the slot 33, the stop blocks 38 can block and limit the front edge of the feeding tray 34. Combined with the bolt rod 37, the feeding tray 34 is pressed from above to prevent the feeding tray 34 from sliding out of the slot 33 due to the rotation of the U-shaped frame 31 during the drying process, thus ensuring the stable operation of the drying process.

[0025] A handwheel is fixedly connected to the top of the bolt rod 37. The bolt rod 37 is centered at the front and back. The handwheel allows the operator to easily control the raising and lowering of the bolt rod 37 by rotating the handwheel without the need for additional tools, which improves the convenience of operation. The centered position design allows the bolt rod 37 to exert more uniform downward pressure on the pressing mesh plate 36, while ensuring the stability of the feeding tray 34 in the slot 33.

[0026] A handle covered with heat-resistant material is fixedly installed on the front side of the feeding tray 34, which makes it easy for operators to hold the feeding tray 34 when pushing it into or pulling it out of the slot 33. Especially after the drying operation is completed, the feeding tray 34 may be in a high temperature state. The heat-resistant material can effectively insulate the heat and avoid the risk of burns caused by direct contact with high-temperature parts by operators. This further improves the safety of the equipment during use and provides a clear point of force for the subsequent removal of the feeding tray 34, making the operation more convenient and efficient.

[0027] Please see Figure 1 , Figure 2 and Figure 5 The blower assembly 6 includes a heating box 61 and a blower 62 fixedly installed at the bottom of the drying chamber 1. The blower 62 is connected to the heating box 61 through a pipe. Air supply pipes 63 are fixedly connected to the left and right sides of the heating box 61, and air supply pipes 63 are fixedly connected to the outer wall of the air supply pipes 63, penetrating the drying chamber 1 and located inside the drying chamber 1. A heating resistance wire 65 is fixedly installed inside the heating box 61. A dehumidifying fan 66 connected to the drying chamber 1 is fixedly installed on the top of the drying chamber 1. After the outside air is drawn in by the blower 62, it enters the heating box 61. The controller 5 starts the heating resistance wire 65 in the heating box 61 to heat the incoming airflow. Then, it is delivered to the air supply pipe 64 through the air supply pipe 63, and then blown out evenly from the air supply pipe 64 below the multiple turning components 3 to ensure that the multiple turning components 3 are dried evenly. At the same time, the dehumidifying fan 66 can discharge the floating moisture to ensure the drying effect.

[0028] The air blowing branch pipes 64 are arranged vertically and equidistantly, corresponding to the number of material turning components 3. One end of each air blowing branch pipe 64 is angled upwards inside the drying chamber 1. This angled design allows the hot airflow to act more directly on the material at the bottom of the material turning components 3, avoiding heat loss due to diffusion when the airflow is vertically upwards. Simultaneously, the equidistant arrangement ensures consistent hot airflow under each material turning component 3, further improving drying uniformity. When the material turning components 3 are driven by the servo motor 4 to turn the material, the angled hot airflow can penetrate into the material through the gaps in the material turning, accelerating moisture evaporation. The evenly distributed air blowing branch pipes 64 effectively cover all material areas within the drying chamber 1, preventing localized insufficient drying.

[0029] A temperature sensor 7 is fixedly installed on the right side inside the drying chamber 1. The sensing end of the temperature sensor 7 faces the inside of the drying chamber 1, which can monitor temperature changes in real time and transmit the data to the controller 5. The controller 5 uses a PLC to automatically switch the heating resistance wire 65 on and off according to the temperature changes to increase the temperature. When the temperature reaches the set value, the heating resistance wire 65 stops working. Through this real-time monitoring and feedback adjustment, the drying chamber 1 is kept within a stable drying temperature range, avoiding the impact of temperature fluctuations on the drying quality of the materials.

[0030] Working principle: When in use, the herbs to be dried are laid on the lower mesh plate 35 in the feeding tray 34, and then the pressing mesh plate 36 is inserted into the feeding tray 34 from above and pressed on the herbs. Then, the front handle of the feeding tray 34 is held and the feeding tray 34 is pushed into the slot 33 through the opening on the front side of the U-shaped frame 31. The feeding tray 34 is fully inserted into the slot 33, so that the stop block 38 abuts against the front side of the feeding tray 34 to provide a limit. Then, by rotating the bolt rods 37 on the left and right sides above the U-shaped frame 31, it is moved down and abuts against the pressing mesh plate 36. As the bolt rods 37 move down, the pressing mesh plate 36 is located in the feeding tray 34 and moves down to press the herbs, thus completing the placement of the herbs.

[0031] After closing the chamber door 2, the blower 62 is turned on by operating the controller 5. The blower 62 draws in outside air into the heating chamber 61. The heating resistance wire 65 inside the heating chamber 61 is turned on by the controller 5 to heat the incoming airflow. The airflow is then sent to the blowing branch pipe 64 through the air supply pipe 63. The blowing branch pipe 64 blows the air evenly between multiple turning components 3. At the same time, the servo motor 4 drives the rotating shaft 32, which in turn drives the U-shaped frame 31 and the feeding tray 34 to rotate synchronously, turning the medicinal materials over. The hot air continuously rises and passes through the lower mesh plate 35 and the pressing mesh plate 36 to dry the medicinal materials. The moisture can be discharged to the outside through the exhaust fan 66 at the top of the drying chamber 1. The temperature sensor 7 can monitor the temperature inside the drying chamber 1 in real time and control the power of the blower 62 to maintain a stable temperature.

[0032] After the medicinal materials are dried, the door 2 is opened and the bolt rod 37 is rotated to move it upward and release the pressure on the pressing mesh plate 36. Then, by holding the handle on the front side of the feeding tray 34 and lifting it slightly, the feeding tray 34 is moved upward to break free from the restriction of the stop block 38 and pulled forward, thereby removing the feeding tray 34. By removing the pressing mesh plate 36, the medicinal materials in the feeding tray 34 can be poured out and replaced for easy collection. The above is the working process of the entire device. All contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electrically heated constant temperature forced-air drying oven, comprising a drying oven (1), characterized in that: The drying chamber (1) is hinged to the front with a door (2). Multiple material turning components (3) are vertically and equidistantly arranged inside the drying chamber (1). A servo motor (4) connected to the multiple material turning components (3) is fixedly installed on the right side of the drying chamber (1). A controller (5) located in front of the servo motor (4) is fixedly installed on the right side of the drying chamber (1). A blower assembly (6) is fixedly installed at the bottom of the drying chamber (1). The material turning assembly (3) includes a U-shaped frame (31). Two rotating shafts (32) are fixedly connected to the left and right sides of the U-shaped frame (31). The two rotating shafts (32) are rotatably connected to the left and right side walls inside the drying oven (1). The servo motor (4) is connected to the rotating shaft (32) located on the right side. The U-shaped frame (31) has a slot (33) with a front opening inside. The slot (33) is movably engaged with a feeding tray (34). The bottom of the feeding tray (34) is fixedly installed with a lower screen plate (35). The feeding tray (34) is movably engaged with a pressing screen plate (36) located above the lower screen plate (35). The top of the U-shaped frame (31) is threaded with bolt rods (37) arranged symmetrically on the left and right sides. The lower end of the bolt rods (37) abuts against the top of the pressing screen plate (36).

2. The electric thermostatic drying oven according to claim 1, characterized in that: The height of the feeding tray (34) is less than the height of the slot (33), and the front side of the U-shaped frame (31) is fixedly connected with symmetrically arranged stop blocks (38).

3. The electric thermostatic drying oven according to claim 1, characterized in that: A handwheel is fixedly connected to the top of the bolt rod (37), and the bolt rod (37) is centered at the front and back.

4. The electric thermostatic drying oven according to claim 3, characterized in that: A handle covered with heat-resistant material is fixedly installed on the front side of the feeding tray (34).

5. The electric thermostatic drying oven according to claim 1, characterized in that: The blower assembly (6) includes a heating box (61) and a blower (62) fixedly installed at the bottom of the drying box (1). The blower (62) is connected to the heating box (61) through a pipe. Air supply pipes (63) located on the left and right sides of the heating box (61) are fixedly connected to the left and right sides of the drying box (1). A blower branch pipe (64) penetrating the drying box (1) and located inside the drying box (1) is fixedly connected to the outer wall of the air supply pipe (63). A heating resistance wire (65) is fixedly installed inside the heating box (61). A dehumidifying fan (66) communicating with the drying box (1) is fixedly installed on the top of the drying box (1).

6. The electric thermostatic drying oven according to claim 5, characterized in that: The blowing branch pipe (64) is arranged vertically at equal intervals corresponding to the number of turning components (3), and one end of the blowing branch pipe (64) is inclined upward inside the drying box (1).

7. The electric thermostatic drying oven according to claim 5, characterized in that: A temperature sensor (7) is fixedly installed on the right side inside the drying oven (1).

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