An electric drying oven

Abstract

The present invention relates to the technical field of drying, and discloses an electric heating drying oven, which includes an electric heating drying oven body. Inside the electric heating drying oven body, there are provided a partition with a through hole, a first sealing plate and a second sealing plate adapted to the size of the through hole, a positioning and feeding assembly, and a self-unlocking assembly. When heating, the first sealing plate seals the through hole of the partition in the present invention. During later disassembly, the second sealing plate slides to the position of the through hole to perfectly replace the sealing, greatly ensuring that the heat inside the sealed chamber does not dissipate, maintaining good heat preservation performance, providing a stable environment for heating the material, and reducing energy consumption. Moreover, with the help of the positioning and feeding assembly, the unlocking, moving and re-locking of the substrate can be completed, and the substrate can be easily moved to the outside. The re-locking design enables the substrate to maintain a stable state outside, providing great convenience for the operator to install the material subsequently, effectively avoiding the shaking or displacement of the substrate during the operation process, and significantly improving the work efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of drying, and specifically relates to an electric heating drying oven. Background Art

[0002] In the textile processing industry, fibers after foaming treatment have been significantly improved in terms of thermal insulation performance, floating performance, shielding effect, etc. To fully verify the various properties of textiles prepared from modified fibers, precise and reliable testing equipment, such as an electric heating oven, plays a crucial role. When testing properties such as the thermal stability of textiles, the textiles need to be placed in the electric heating oven, set to a specific temperature according to relevant standard requirements and maintained for a certain period of time, and then parameters such as the dimensional change rate are measured to judge the material properties.

[0003] However, existing electric heating ovens have many drawbacks. When it is necessary to disassemble the textiles after the detection, once the oven door is opened, the heat inside the oven body will quickly dissipate. This leads to the equipment needing to be reheated to the set temperature again during the next use, greatly increasing energy consumption and causing energy waste. Moreover, since the temperature inside the oven body is still relatively high after the detection, there is a risk of scalding when the operator directly performs the disassembly operation. And during the loading and unloading process, the clamping plate is not fixed, prone to shaking, and the high-temperature environment is also not conducive to precise and safe disassembly of the textiles, seriously affecting the operation efficiency and personnel safety.

[0004] In view of this, the present invention is specifically proposed. Summary of the Invention

[0005] To solve the technical problems that when it is necessary to disassemble the textiles after the detection, once the oven door is opened, the heat inside the oven body will quickly dissipate, which leads to the equipment needing to be reheated to the set temperature again during the next use, greatly increasing energy consumption and causing energy waste; moreover, since the temperature inside the oven body is still relatively high after the detection, there is a risk of scalding when the operator directly performs the disassembly operation, and during the loading and unloading process, the clamping plate is not fixed, prone to shaking, and the high-temperature environment is also not conducive to precise and safe disassembly of the textiles, seriously affecting the operation efficiency and personnel safety, the basic concept of the technical solution adopted by the present invention is as follows:

[0006] An electric heating drying oven includes an electric heating drying oven body. A partition with a through hole is arranged inside the electric heating drying oven body, and a first sealing plate and a second sealing plate adapted to the size of the through hole are provided. The first sealing plate and the second sealing plate are used to seal the electric heating drying oven body during detection and disassembly, and a substrate for placing materials is installed between the first sealing plate and the second sealing plate.

[0007] A positioning and feeding assembly is installed on the electrothermal drying oven body. The positioning and feeding assembly includes an adjusting roller. A combined groove formed by alternating two pairs of feeding grooves and locking grooves is formed on the adjusting roller, and the combined groove is slidably connected to a fixed block on the side wall of the second sealing plate. A turntable is installed on the adjusting roller, and a protrusion for clamping at the bottom of the fixed block and corresponding to the locking groove is installed on the turntable. The positioning and feeding assembly is used to first unlock and then push the second sealing plate to slide;

[0008] A self-unlocking assembly is installed on the substrate. The self-unlocking assembly includes a rocker arm rotatably installed on the substrate. The self-unlocking assembly is used to drive the rocker arm to flip when the second sealing plate slides to the through hole, so as to unlock the material on the substrate.

[0009] As a preferred embodiment of the present invention, a sealing door is rotatably installed at the inlet of the electrothermal drying oven body. An observation window is installed on the sealing door. Both the observation window and the partition are made of transparent materials. A handle is installed on the sealing door, and an anti-slip groove is formed on the handle. Support legs are installed at the bottom of the electrothermal drying oven body, and anti-slip pads are installed at the bottoms of the support legs.

[0010] As a preferred embodiment of the present invention, the partition is installed on the inner wall of the electrothermal drying oven body by bolts. A guide rod is installed between the inner side wall of the partition and the inner side wall of the electrothermal drying oven body. The guide rod is rectangular. A sliding plate is slidably installed on the guide rod, and the sliding plate is installed on the side wall of the second sealing plate. A synchronizing rod is installed between the first sealing plate and the second sealing plate.

[0011] As a preferred embodiment of the present invention, a positioning shaft is installed at the rotation center of the rocker arm. The positioning shaft is rotatably installed on the substrate. The substrate is in a bent state. A plurality of pairs of air vents are formed at the center position of the substrate. A pressing roller is installed at the end of the rocker arm, and the pressing roller is attached to the substrate. The rocker arm is in an inclined state.

[0012] As a preferred embodiment of the present invention, a top rod is movably inserted between the first sealing plate and the second sealing plate. A sliding rod is installed through the interior of the top rod. A strip-shaped groove is formed inside the rocker arm, and the strip-shaped groove is slidably connected to the sliding rod.

[0013] As a preferred embodiment of the present invention, a positioning sleeve is installed on the back of the second sealing plate. A baffle is slidably installed inside the positioning sleeve. One end of the baffle is connected to the top rod, and the top rod is inserted into the positioning sleeve. A connecting rod is installed at the other end of the baffle. The connecting rod movably penetrates through the positioning sleeve. A synchronizing frame is installed at the end of the connecting rod. A return spring is sleeved on the connecting rod located inside the positioning sleeve. One end of the return spring is clamped on the positioning sleeve, and the other end of the return spring is clamped on the baffle.

[0014] As a preferred embodiment of the present invention, a top plate is installed on the synchronization frame, a top block is installed on the top plate, the top block is slidably connected to the top of the second sealing plate, and the top block corresponds to the partition. A limiting rod is movably inserted on the top plate, one end of the limiting rod is installed on the side wall of the second sealing plate, and a limiting plate is installed at the other end of the limiting rod. The diameter of the limiting plate is larger than that of the limiting rod.

[0015] As a preferred embodiment of the present invention, a synchronization shaft is installed at the rotation center of the adjusting roller. The synchronization shaft movably penetrates the side wall of the electrothermal drying oven body and the side wall of the partition. A knob is installed at the end of the synchronization shaft, the knob is attached to the partition, and the synchronization shaft is connected to the rotation center of the turntable.

[0016] As a preferred embodiment of the present invention, the feed groove is a spiral groove, the locking groove is a straight groove, the combined groove is annular, the central angles corresponding to the feed groove and the locking groove are ninety degrees, and the central angle of the protrusion is the same as that of the locking groove.

[0017] As a preferred embodiment of the present invention, a slider is slidably installed on the combined groove. A vertical rod is installed on the slider. The top of the vertical rod is connected to the bottom of the fixed block. Two card slots are opened at the bottom of the fixed block, and the card slots correspond to the protrusions, and the two card slots are respectively located on both sides of the vertical rod.

[0018] The present invention has the following beneficial effects compared with the prior art:

[0019] Through the ingenious design of the first sealing plate and the second sealing plate, the present invention effectively seals the electrothermal drying oven body at different stages. During heating, the first sealing plate seals the through hole of the partition. During later disassembly, the second sealing plate slides to the position of the through hole to perfectly replace the seal, greatly ensuring that the heat inside the sealed chamber does not dissipate, maintaining good heat preservation performance, providing a stable environment for heating the material, and reducing energy consumption. And with the help of the positioning and feeding assembly, the unlocking, moving and re-locking of the substrate can be completed, and the substrate can be easily moved to the outside. The re-locking design keeps the substrate in a stable state outside, providing great convenience for the operator to install the material later, effectively avoiding the shaking or displacement of the substrate during the operation process, and significantly improving the work efficiency. And through the self-unlocking assembly, when the second sealing plate slides to a specific position, it can automatically drive the rocker arm to flip, releasing the pressing state of the fiber textile tightly attached to the substrate, realizing the unlocking of the material, without additional manual operation, reducing the errors that may be brought by human intervention, improving the accuracy and convenience of the operation, and increasing the safety.

[0020] The following further describes in detail the specific embodiments of the present invention with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the drawings:

[0022] Figure 1 It is a three-dimensional structural schematic diagram of an electrothermal drying oven;

[0023] Figure 2 It is a partial structural schematic of an electrothermal drying oven Figure 1 ;

[0024] Figure 3 It is a partial structural schematic of an electrothermal drying oven Figure 2 ;

[0025] Figure 4 It is a partial structural schematic of an electrothermal drying oven Figure 3 ;

[0026] Figure 5 It is a partial structural schematic of an electrothermal drying oven Figure 4 ;

[0027] Figure 6 It is Figure 5 The enlarged view at position A in

[0028] Figure 7 It is Figure 5 The enlarged view at position B in

[0029] Figure 8 It is Figure 5 The bottom view of

[0030] In the figure:

[0031] 1. Electrothermal drying oven body; 11. Sealing door; 111. Observation window; 112. Handle; 12. Support leg; 13. Partition; 131. Through hole; 14. First sealing plate; 141. Second sealing plate; 142. Synchronous rod; 143. Slide plate; 144. Guide rod; 15. Substrate; 151. Ventilation port;

[0032] 2. Rocker arm; 21. Positioning shaft; 22. Strip-shaped groove; 23. Pressing roller; 24. Jack; 241. Slide bar; 25. Positioning sleeve; 251. Baffle; 252. Return spring; 26. Synchronous frame; 261. Connecting rod; 262. Top plate; 263. Top block; 264. Limit rod; 265. Limit plate;

[0033] 3. Adjusting roller; 31. Synchronous shaft; 311. Knob; 32. Combined groove; 321. Feed groove; 322. Locking groove; 33. Fixed block; 331. Vertical rod; 332. Slide block; 34. Turntable; 341. Protrusion; 342. Card slot. Detailed implementation method

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments with reference to the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0035] Embodiment 1: As Figures 1 to 8 shown, an electrothermal drying oven includes an electrothermal drying oven body 1. Inside the electrothermal drying oven body 1, there is a partition 13 with a through hole 131 formed therein, and a first sealing plate 14 and a second sealing plate 141 that are dimensionally adapted to the through hole 131. The first sealing plate 14 and the second sealing plate 141 are used to seal the electrothermal drying oven body 1 during inspection and disassembly. A substrate 15 for placing materials is installed between the first sealing plate 14 and the second sealing plate 141.

[0036] A positioning and feeding assembly is installed on the electrothermal drying oven body 1. The positioning and feeding assembly includes an adjusting roller 3. A combined groove 32 formed by alternating combinations of two pairs of feeding grooves 321 and locking grooves 322 is formed on the adjusting roller 3, and the combined groove 32 is slidably connected to a fixing block 33 on the side wall of the second sealing plate 141. A turntable 34 is installed on the adjusting roller 3, and a protrusion 341 for clamping at the bottom of the fixing block 33 and corresponding to the locking groove 322 is installed on the turntable 34. The positioning and feeding assembly is used to first unlock and then push the second sealing plate 141 to slide.

[0037] A self-unlocking assembly is installed on the substrate 15. The self-unlocking assembly includes a rocker arm 2 rotatably installed on the substrate 15. The self-unlocking assembly is used to drive the rocker arm 2 to flip when the second sealing plate 141 slides to the through hole 131, unlocking the materials on the substrate 15.

[0038] As Figures 1 to 8 shown, in the specific implementation, a sealing door 11 is rotatably installed at the inlet of the electrothermal drying oven body 1. An observation window 111 is installed on the sealing door 11. Both the observation window 111 and the partition 13 are made of transparent materials, facilitating the operator to observe the situation inside the oven at any time. A handle 112 is installed on the sealing door 11, and the handle 112 is provided with an anti-slip groove to improve the grip stability during operation. Support legs 12 are installed at the bottom of the electrothermal drying oven body 1, and anti-slip pads are installed at the bottom of the support legs 12 to enhance the stability of the equipment when placed.

[0039] As Figures 1 to 8As shown in the figure, further, the partition 13 is installed on the inner wall of the electrothermal drying oven body 1 by bolts. A guide rod 144 is installed between the inner side wall of the partition 13 and the inner side wall of the electrothermal drying oven body 1. The guide rod 144 is rectangular. A sliding plate 143 is slidably installed on the guide rod 144. The sliding plate 143 is installed on the side wall of the second sealing plate 141. The guide rod 144 and the sliding plate 143 serve the purpose of guiding. A synchronous rod 142 is installed between the first sealing plate 14 and the second sealing plate 141. The synchronous rod 142 is used to drive the first sealing plate 14 and the second sealing plate 141 to move synchronously.

[0040] Embodiment 2: The difference between this embodiment and Embodiment 1 is that: as Figures 1 to 8 shown in the figure, a positioning shaft 21 is installed at the rotation center of the rocker arm 2. The positioning shaft 21 is rotatably installed on the substrate 15. The substrate 15 is in a bent state. A plurality of pairs of ventilation openings 151 are provided at the center position of the substrate 15, which helps the gas flow during the drying process of the material. A pressure roller 23 is installed at the end of the rocker arm 2. The pressure roller 23 is attached to the substrate 15. The rocker arm 2 is in an inclined state, which facilitates the clamping operation in the later stage through the pressure roller 23.

[0041] As Figures 1 to 8As shown, in the specific implementation manner, a positioning sleeve 25 is installed on the back surface of the second sealing plate 141. A baffle 251 is slidably installed inside the positioning sleeve 25. One end of the baffle 251 is connected to the ejector rod 24, and the ejector rod 24 is inserted into the positioning sleeve 25. The other end of the baffle 251 is installed with a connecting rod 261. The connecting rod 261 movably passes through the positioning sleeve 25. The end of the connecting rod 261 is installed with a synchronous frame 26. A return spring 252 is sleeved on the connecting rod 261 located inside the positioning sleeve 25. One end of the return spring 252 is clamped on the positioning sleeve 25, and the other end of the return spring 252 is clamped on the baffle 251. A top plate 262 is installed on the synchronous frame 26. A top block 263 is installed on the top plate 262. The top block 263 is slidably connected to the top of the second sealing plate 141, and the top block 263 corresponds to the partition 13. A limiting rod 264 is movably inserted into the top plate 262. One end of the limiting rod 264 is installed on the side wall of the second sealing plate 141, and the other end of the limiting rod 264 is installed with a limiting plate 265. The diameter of the limiting plate 265 is larger than the diameter of the limiting rod 264. An ejector rod 24 is movably inserted between the first sealing plate 14 and the second sealing plate 141. A slide rod 241 is installed through the inside of the ejector rod 24. A strip-shaped groove 22 is formed inside the swing arm 2, and the strip-shaped groove 22 is slidably connected to the slide rod 241. When the second sealing plate 141 slides to the through hole 131, at this time, the top block 263 installed on the back surface of the second sealing plate 141 is blocked by the partition 13. Then, the top block 263 drives the top plate 262 to move away from the positioning sleeve 25, and the top plate 262 slides along the limiting rod 264 at this time, mainly serving the purpose of limiting, and the limiting plate 265 at the end of the limiting rod 264 ensures that the limiting rod 264 and the top plate 262 will not separate. When the top plate 262 slides, the top plate 262 drives the synchronous frame 26 to slide, and the connecting rod 261 on the synchronous frame 26 pulls the baffle 251 to move, compressing the return spring 252. Facilitating later resetting by compressing the return spring 252. At the same time, the baffle 251 drives the ejector rod 24 to move, and the ejector rod 24 can slide horizontally inside the second sealing plate 141. During the sliding process of the ejector rod 24, the ejector rod 24 can drive the slide rod 241 to slide. At this time, the slide rod 241 slides in the strip-shaped groove 22 formed inside the swing arm 2, thereby driving the swing arm 2 to rotate around the positioning shaft 21. Finally, the pressing roller 23 at the end of the swing arm 2 gradually lifts, and the flipping of the swing arm 2 unlocks the fiber textile closely attached to the substrate 15.

[0042] Embodiment 3: The difference between this embodiment and Embodiment 2 is as follows: As Figures 1 to 8 shown, a synchronous shaft 31 is installed at the rotation center of the adjusting roller 3. The synchronous shaft 31 movably passes through the side wall of the electrothermal drying oven body 1 and the side wall of the partition 13. The end of the synchronous shaft 31 is installed with a knob 311. The knob 311 is attached to the partition 13. The synchronous shaft 31 is connected to the rotation center of the turntable 34. The operator can conveniently control the actions of the adjusting roller 3 and related components by rotating the knob 311.

[0043] As Figures 1 to 8 shown, in the specific implementation, the feed groove 321 is a spiral groove, the locking groove 322 is a straight groove, the combined groove 32 is annular, the central angles corresponding to the feed groove 321 and the locking groove 322 are ninety degrees, and the central angle of the protrusion 341 is the same as that of the locking groove 322.

[0044] As Figures 1 to 8 shown, further, a slider 332 is slidably mounted on the combined groove 32, a vertical rod 331 is mounted on the slider 332, the top of the vertical rod 331 is connected to the bottom of the fixed block 33, two clamping grooves 342 are formed at the bottom of the fixed block 33, and the clamping grooves 342 correspond to the protrusions 341, and the two clamping grooves 342 are respectively located on both sides of the vertical rod 331. Through this precise structural design, the precise locking and unlocking of relevant components are realized.

[0045] The implementation principle of an electric drying oven of the present invention is as follows:

[0046] When the present invention is in normal use, at this time, the fiber textile is placed on the substrate 15, and the fiber textile is closely attached to the bent substrate 15. The substrate 15 as a whole is located in the chamber of the partition 13 and the electric drying oven body 1, ensuring that the first sealing plate 14 covers the through hole 131 of the partition 13 to seal the through hole 131. Then the operator starts the electric drying oven body 1, and the fiber textile inside can be heated and raised in temperature through the electric drying oven body 1 to facilitate the later detection requirements.

[0047] After the heating is completed, the operator can open the sealing door 11. Then the operator rotates the knob 311, the knob 311 drives the synchronous shaft 31 to rotate, the synchronous shaft 31 drives the entire adjusting roller 3 to rotate, and then the position of the combined groove 32 on the adjusting roller 3 changes. So when the adjusting roller 3 just starts to rotate, at this time, the slider 332 on the combined groove 32 slides in the locking groove 322, and thus the slider 332 will not slide horizontally. However, in this process, the turntable 34 on the adjusting roller 3 rotates, and finally the protrusion 341 on the turntable 34 is separated from the clamping groove 342, and thus the first sealing plate 14, the second sealing plate 141 connected to the fixed block 33 and the substrate 15 with the material installed are unlocked at this time.

[0048] As the adjusting roller 3 continues to rotate, at this time, the slider 332 slides into the feed groove 321, and since the feed groove 321 is a spiral groove, the fixed block 33 will push the second sealing plate 141 to slide along the direction of the guide rod 144 under its action. The second sealing plate 141 drives the first sealing plate 14 to move synchronously through the synchronous rod 142, so that the first sealing plate 14 gradually disengages from the through hole 131.

[0049] When the second sealing plate 141 slides to the position of the through hole 131, the second sealing plate 141 perfectly replaces the first sealing plate 14 at this time, effectively seals the internal chamber, ensures that the heat inside the sealed chamber will not be dissipated, and maintains good heat preservation performance. At the same time, the substrate 15 originally located in the chamber of the partition 13 and the electrothermal drying oven body 1 is brought to the outside due to the sliding of the second sealing plate 141. This change in position greatly facilitates the operator to disassemble and assemble the substrate 15, and the fiber textiles heated and dried on the substrate 15 can be conveniently taken out, and then subsequent detection and other work processes can be carried out.

[0050] And when the second sealing plate 141 slides to the through hole 131, the top block 263 installed on the back of the second sealing plate 141 is blocked by the partition 13 at this time. Then the top block 263 drives the top plate 262 to move away from the positioning sleeve 25, and the top plate 262 slides along the limiting rod 264 at this time, mainly serving the purpose of limiting, and the limiting plate 265 at the end of the limiting rod 264 ensures that the limiting rod 264 and the top plate 262 will not separate.

[0051] When the top plate 262 slides, the top plate 262 drives the synchronous frame 26 to slide, and the connecting rod 261 on the synchronous frame 26 pulls the baffle 251 to move, compressing the return spring 252. It is convenient for later resetting by compressing the return spring 252. At the same time, the baffle 251 drives the ejector rod 24 to move, and the ejector rod 24 can slide horizontally inside the second sealing plate 141. During the sliding process of the ejector rod 24, the ejector rod 24 can drive the sliding rod 241 to slide. At this time, the sliding rod 241 slides in the strip-shaped groove 22 opened inside the rocker arm 2, and then drives the rocker arm 2 to rotate around the positioning shaft 21. Finally, the pressing roller 23 at the end of the rocker arm 2 gradually lifts, and the flipping of the rocker arm 2 unlocks the fiber textiles closely attached to the substrate 15.

[0052] When the substrate 15 completely slides out, at this time the operator does not need to rotate the knob 311 in the reverse direction, but continues to rotate the knob 311. The adjusting roller 3 will continue to rotate. When the slider 332 slides to another locking groove 322 along the feed groove 321 of the adjusting roller 3, the protrusion 341 on the turntable 34 will then be smoothly stuck into another card slot 342 at the bottom of the fixed block 33, successfully realizing the re-locking of components such as the substrate 15. At this time, the operator can conveniently take out the fiber textiles heated and dried on the substrate 15 for subsequent detection and other operations. And at this time, the substrate 15 is in a locked state, making it more convenient to take and install fiber textiles later, and will not cause the substrate 15 to shift, affecting the operation efficiency.

Claims

1. An electric drying oven, comprising an electric drying oven body (1), characterized in that: Inside the electric heating drying oven body (1), there is a partition (13) with a through hole (131) opened, as well as a first sealing plate (14) and a second sealing plate (141) adapted to the size of the through hole (131). The first sealing plate (14) and the second sealing plate (141) are used to seal the electric heating drying oven body (1) during detection and disassembly. A substrate (15) for placing materials is installed between the first sealing plate (14) and the second sealing plate (141). A positioning and feeding assembly is installed on the electric heating drying oven body (1). The positioning and feeding assembly includes an adjusting roller (3). A combined groove (32) formed by alternating combinations of two pairs of feeding grooves (321) and locking grooves (322) is opened on the adjusting roller (3). The combined groove (32) is slidably connected to a fixing block (33) on the side wall of the second sealing plate (141). A turntable (34) is installed on the adjusting roller (3). A protrusion (341) for clamping at the bottom of the fixing block (33) and corresponding to the locking groove (322) is installed on the turntable (34). The positioning and feeding assembly is used to unlock first and then push the second sealing plate (141) to slide. A self-unlocking assembly is installed on the substrate (15). The self-unlocking assembly includes a rocker arm (2) rotatably installed on the substrate (15). The self-unlocking assembly is used to drive the rocker arm (2) to flip when the second sealing plate (141) slides to the through hole (131), unlocking the materials on the substrate (15).

2. An electric drying oven according to claim 1, characterized in that, A sealing door (11) is rotatably installed at the inlet of the electric heating drying oven body (1). An observation window (111) is installed on the sealing door (11). Both the observation window (111) and the partition (13) are made of transparent materials. A handle (112) is installed on the sealing door (11). The handle (112) is provided with anti-slip grooves. Support legs (12) are installed at the bottom of the electric heating drying oven body (1). Anti-slip pads are installed at the bottom of the support legs (12).

3. An electric drying oven according to claim 1, characterized in that, The partition (13) is installed on the inner wall of the electric heating drying oven body (1) by bolts. A guide rod (144) is installed between the inner side wall of the partition (13) and the inner side wall of the electric heating drying oven body (1). The guide rod (144) is rectangular. A sliding plate (143) is slidably installed on the guide rod (144). The sliding plate (143) is installed on the side wall of the second sealing plate (141). A synchronous rod (142) is installed between the first sealing plate (14) and the second sealing plate (141).

4. An electric drying oven according to claim 1, characterized in that, A positioning shaft (21) is installed at the rotation center of the rocker arm (2). The positioning shaft (21) is rotatably installed on the substrate (15). The substrate (15) is in a bent state. A number of pairs of ventilation openings (151) are opened at the center position of the substrate (15). A pressure roller (23) is installed at the end of the rocker arm (2). The pressure roller (23) is attached to the substrate (15). The rocker arm (2) is in an inclined state.

5. An electric drying oven according to claim 1, characterized in that, A push rod (24) is movably inserted between the first sealing plate (14) and the second sealing plate (141). A sliding rod (241) is installed through the interior of the push rod (24). A strip-shaped groove (22) is formed inside the rocker arm (2), and the strip-shaped groove (22) is slidably connected to the sliding rod (241).

6. The electrothermal drying oven according to claim 1, characterized in that, A positioning sleeve (25) is installed on the back surface of the second sealing plate (141). A baffle (251) is slidably installed inside the positioning sleeve (25). One end of the baffle (251) is connected to the push rod (24), and the push rod (24) is inserted into the positioning sleeve (25). A connecting rod (261) is installed at the other end of the baffle (251). The connecting rod (261) movably penetrates the positioning sleeve (25). A synchronizing frame (26) is installed at the end of the connecting rod (261). A return spring (252) is sleeved on the connecting rod (261) located inside the positioning sleeve (25). One end of the return spring (252) is clamped on the positioning sleeve (25), and the other end of the return spring (252) is clamped on the baffle (251).

7. An electric drying oven according to claim 6, characterized in that, A top plate (262) is installed on the synchronizing frame (26). A top block (263) is installed on the top plate (262). The top block (263) is slidably connected to the top of the second sealing plate (141), and the top block (263) corresponds to the partition (13). A limiting rod (264) is movably inserted on the top plate (262). One end of the limiting rod (264) is installed on the side wall of the second sealing plate (141), and a limiting plate (265) is installed at the other end of the limiting rod (264). The diameter of the limiting plate (265) is larger than the diameter of the limiting rod (264).

8. An electric drying oven according to claim 1, characterized in that, A synchronizing shaft (31) is installed at the rotation center of the adjusting roller (3). The synchronizing shaft (31) movably penetrates the side walls of the electrothermal drying oven body (1) and the partition (13). A knob (311) is installed at the end of the synchronizing shaft (31). The knob (311) is attached to the partition (13). The synchronizing shaft (31) is connected to the rotation center of the turntable (34).

9. An electric drying oven according to claim 1, wherein, The feed groove (321) is a spiral groove, the locking groove (322) is a straight groove, the combined groove (32) is annular. The central angles corresponding to the feed groove (321) and the locking groove (322) are ninety degrees, and the central angle of the protrusion (341) is the same as that of the locking groove (322).

10. An electric drying oven according to claim 1, characterized in that, A slider (332) is slidably installed on the combined groove (32). A vertical rod (331) is installed on the slider (332). The top of the vertical rod (331) is connected to the bottom of the fixed block (33). Two card slots (342) are formed at the bottom of the fixed block (33), and the card slots (342) correspond to the protrusions (341), and the two card slots (342) are respectively located on both sides of the vertical rod (331).

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