A multi-layer ceramic green body microwave-assisted continuous drying line

Abstract

The present invention relates to the technical field of drying ceramic green bodies, and discloses a multi-layer microwave-assisted continuous drying line for ceramic green bodies, which includes an operation main body. The operation main body includes a base. The base is rotatably connected through a frame arranged on its top to a placement frame connected to an external drive unit. A loading part, the loading part includes a loading rack. The loading rack is rotatably and dampingly connected to the inside of the placement frame through a hollow shaft fixedly connected to its end. A rotating seat is rotatably connected inside the loading rack. This multi-layer microwave-assisted continuous drying line for ceramic green bodies can effectively solve the problem in the prior art that the microwave penetration ability weakens with the increase of the thickness of the ceramic green body. For a green body with a certain thickness, the microwave can penetrate, but if the green body is too thick or the stacking layers are too many, the microwave penetration ability will decrease significantly, resulting in uneven drying between the green bodies. If drying is considered in batches, the production efficiency will be greatly reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of ceramic green body drying, and particularly relates to a multi-layer ceramic green body microwave-assisted continuous drying line. Background Art

[0002] In the traditional ceramic drying process, energy consumption is an important issue. In the ceramic industry, traditional drying methods, such as hot air drying, have problems such as a high rejection rate, a long drying cycle, and high energy consumption. The microwave-assisted drying technology utilizes the basic principle of microwave heating and drying, that is, converting electromagnetic energy into heat energy through dielectric loss to achieve fast and uniform drying effects.

[0003] The principle of microwave heating and drying is to use microwave energy to penetrate the material, causing the water molecules inside the material to rotate violently under the action of the electromagnetic field, thereby generating frictional heat to achieve drying. This drying method not only improves the drying speed but also helps to improve the quality of ceramic products. However, the microwave penetration ability weakens as the thickness of the ceramic green body increases. For a green body with a certain thickness, microwaves can penetrate, but if the green body is too thick or the stacking layers are too many, the microwave penetration ability will decrease significantly, resulting in uneven drying between the green bodies. If batch drying is considered, the production efficiency will be greatly reduced. Summary of the Invention

[0004] Aiming at the above-mentioned disadvantages of the prior art, the present invention provides a multi-layer ceramic green body microwave-assisted continuous drying line, which can effectively solve the problems in the prior art that the microwave penetration ability weakens as the thickness of the ceramic green body increases. For a green body with a certain thickness, microwaves can penetrate, but if the green body is too thick or the stacking layers are too many, the microwave penetration ability will decrease significantly, resulting in uneven drying between the green bodies. If batch drying is considered, the production efficiency will be greatly reduced.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions:

[0006] The present invention provides a multi-layer ceramic green body microwave-assisted continuous drying line, including:

[0007] An operation main body, the operation main body includes a base, and the base is rotatably connected through a frame arranged on its top to a placement frame connected to an external drive unit;

[0008] A loading part, the loading part includes a loading rack, the loading rack is rotatably connected to the inside of the placement frame through a hollow shaft fixedly communicated with its end, a rotating seat is rotatably connected to the inside of the loading rack, and a loading tray for placing external ceramic green bodies is installed on the rotating seat through an adjusting frame arranged on its upper surface, and a counterweight block is fixedly connected to the lower surface of the loading rack;

[0009] Among them, the base is installed with a microwave generator through a mounting plate provided on its upper surface, and there are two such microwave generators symmetrically distributed with the frame as the center;

[0010] Among them, the carrier rack is provided with a pushing member through a cavity opened inside it, which can be used to adjust the rotation position of the rotating seat.

[0011] Furthermore, the adjusting frame includes a threaded rod, the bottom of the threaded rod is fixedly connected to the upper surface of the rotating seat, a threaded sleeve that rotates with the lower surface of the carrier plate is threadedly connected to the outer circumferential surface of the threaded rod, a rotating frame that rotates with the lower surface of the carrier plate is provided on the upper surface of the rotating seat, there are two such rotating frames symmetrically distributed with the threaded rod as the center, and the carrier plate is in transmission connection between a toothed ring provided on its lower surface and the threaded sleeve.

[0012] Furthermore, an internal cavity communicating with the cavity is opened inside the carrier rack, a clamping block is connected to the inner wall of the internal cavity through an elastic plate provided on the inner wall, a toothed groove is opened on the outer circumferential surface of the rotating seat, a toothed seat that rotates with the bottom of the inner wall of the internal cavity is fixedly connected to the lower surface of the rotating seat, and the circumferential teeth of the toothed seat are engaged with the clamping block.

[0013] Furthermore, the pushing member includes a first toothed plate and a second toothed plate, the first toothed plate and the second toothed plate are symmetrically distributed with the rotating seat as the center, the first toothed plate and the second toothed plate are fixedly connected through a chute plate, a round block is slidably connected to the inner wall of the hollow shaft, an end face of the round block is fixedly connected to a slide plate that slides with the inner wall of the chute plate through a straight rod, and a strong spring connected to the inner wall of the cavity is provided on one side of the slide plate away from the chute plate.

[0014] Furthermore, a first smooth plate that slides with the inner wall of the cavity is closely attached to the side of the first toothed plate, and a first return spring connected to the inner wall of the cavity is provided on one side of the first smooth plate away from the first toothed plate. A second smooth plate that slides with the inner wall of the cavity is closely attached to the side of the second toothed plate, and a second return spring connected to the inner wall of the cavity is provided on one side of the second smooth plate away from the second toothed plate.

[0015] Furthermore, in the initial state, the elastic force of the second return spring is greater than that of the first return spring, the teeth of the second toothed plate are meshed with the toothed groove, a reciprocating frame that slides inside the carrier rack is fixedly connected to one side of the first smooth plate close to the first return spring, and a smooth wheel is rotatably connected inside the reciprocating frame.

[0016] Furthermore, an arc-shaped plate that fits with the outer circumferential surface of the smooth wheel is fixedly connected to the upper surface of the base through a support seat, and a magnetic block is fixedly connected to the arc-shaped plate through an L-shaped plate provided on its end face.

[0017] Further, one end of the round block away from the skateboard is fixedly connected with a magnetic plate through an extension rod, and the magnetic plate and the magnetic block are magnetically connected.

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

[0019] The present invention is provided with a placement frame, a loading part and a microwave generator. A large number of ceramics can be picked up manually, by a manipulator or by an automated device. Place the ceramic blank to be dried above the loading tray of the loading part. Then, an external drive unit drives the placement frame to slowly rotate around the inside of the frame. Finally, the placement frame is in an inclined state, and rows of ceramic blanks are "arranged in a stepped manner", with the highest point of the front row of ceramic blanks slightly lower than the lowest point of the rear row of ceramic blanks. The height difference between the highest point and the lowest point of the ceramic blank is slightly less than the microwave irradiation area of the microwave generator. Therefore, when the microwave generator synchronously dries a batch of ceramic blanks, the ceramic blanks do not interfere with each other, avoiding the problem that the ceramic blanks overlap with each other, resulting in a significant decrease in the penetration ability of microwaves and uneven drying between the blanks. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the present invention;

[0022] Figure 2 is a front structural schematic diagram of an embodiment of the present invention;

[0023] Figure 3 is a three-dimensional structural schematic diagram of the arc plate and the magnetic block of an embodiment of the present invention;

[0024] Figure 4 is a three-dimensional structural schematic diagram of the loading part and the placement frame of an embodiment of the present invention;

[0025] Figure 5 is a three-dimensional structural schematic diagram of the loading rack, the adjusting rack and the loading tray of an embodiment of the present invention;

[0026] Figure 6 is a partial sectional structural schematic diagram of the loading rack in an embodiment of the present invention;

[0027] Figure 7 is a top view structural schematic diagram of the pushing member in an embodiment of the present invention;

[0028] Figure 8 Schematic diagram of the three-dimensional separation structure of the driving member and the loading rack in the embodiment of the present invention;

[0029] Figure 9 In the embodiment of the present invention Figure 8 Schematic diagram of the partial enlargement at position A in the figure.

[0030] The reference numerals in the figure respectively represent: 1, operation main body; 11, base; 111, arc plate; 112, magnetic block; 12, frame; 13, placement frame; 2, loading part; 21, loading rack; 211, cavity; 212, built-in cavity; 213, elastic plate; 214, clamping block; 22, hollow shaft; 221, round block; 222, sliding plate; 223, strong spring; 224, magnetic plate; 23, rotating seat; 231, tooth groove; 232, tooth seat; 24, adjusting frame; 241, threaded rod; 242, threaded sleeve; 243, rotating frame; 244, tooth ring; 25, loading tray; 26, counterweight block; 27, driving member; 271, first toothed plate; 272, second toothed plate; 273, chute plate; 274, first smooth plate; 275, first return spring; 276, second smooth plate; 277, second return spring; 278, reciprocating frame; 279, smooth wheel; 3, microwave generator. Detailed implementation manners

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] The present invention will be further described below with reference to the embodiments.

[0033] Embodiment:

[0034] Please refer to Figures 1-9 , the present invention provides a technical solution: a multi-layer ceramic blank microwave-assisted continuous drying line, including:

[0035] An operation main body 1, the operation main body 1 includes a base 11, and the base 11 is rotatably connected through a frame 12 provided on its top to a placement frame 13 connected to an external drive unit;

[0036] The object-carrying part 2, the object-carrying part 2 includes an object-carrying rack 21, the object-carrying rack 21 is internally and damping rotatably connected to the inside of the placement frame 13 through a hollow shaft 22 fixedly connected to its end, a rotating seat 23 is rotatably connected inside the object-carrying rack 21, and an object-carrying tray 25 for placing an external ceramic blank is installed on the rotating seat 23 through an adjusting frame 24 provided on its upper surface. A counterweight 26 is fixedly connected to the lower surface of the object-carrying rack 21;

[0037] Among them, a microwave generator 3 is installed on the base 11 through a mounting plate provided on its upper surface, and there are two such microwave generators 3 and they are symmetrically distributed with the frame 12 as the center;

[0038] Among them, the object-carrying rack 21 is provided with a pushing member 27 for adjusting the rotation position of the rotating seat 23 through a cavity 211 opened inside it.

[0039] The adjusting frame 24 includes a threaded rod 241, the bottom of the threaded rod 241 is fixedly connected to the upper surface of the rotating seat 23, a threaded sleeve 242 that rotates with the lower surface of the object-carrying tray 25 is threadedly connected to the outer circumferential surface of the threaded rod 241. A rotating frame 243 that rotates with the lower surface of the object-carrying tray 25 is provided on the upper surface of the rotating seat 23. There are two rotating frames 243 and they are symmetrically distributed with the threaded rod 241 as the center. The object-carrying tray 25 is drivingly connected to the threaded sleeve 242 through a toothed ring 244 provided on its lower surface.

[0040] An internal cavity 212 communicating with the cavity 211 is opened inside the object-carrying rack 21. A clamping block 214 is connected to the inner wall of the internal cavity 212 through an elastic plate 213 provided on its inner wall. A toothed groove 231 is opened on the outer circumferential surface of the rotating seat 23. A toothed seat 232 that rotates with the bottom of the inner wall of the internal cavity 212 is fixedly connected to the lower surface of the rotating seat 23, and the circumferential teeth of the toothed seat 232 are engaged with the clamping block 214.

[0041] The pushing member 27 includes a first toothed plate 271 and a second toothed plate 272. The first toothed plate 271 and the second toothed plate 272 are symmetrically distributed with the rotating seat 23 as the center. The first toothed plate 271 and the second toothed plate 272 are fixedly connected through a chute plate 273. A round block 221 is slidably connected to the inner wall of the hollow shaft 22. An end face of the round block 221 is fixedly connected to a sliding plate 222 that slides with the inner wall of the chute plate 273. A strong spring 223 connected to the inner wall of the cavity 211 is provided on one side of the sliding plate 222 away from the chute plate 273.

[0042] On the side of the first toothed plate 271, there is a first smooth plate 274 that closely fits and slides along the inner wall of the cavity 211. On the side of the first smooth plate 274 away from the first toothed plate 271, there is a first return spring 275 connected to the inner wall of the cavity 211. On the side of the second toothed plate 272, there is a second smooth plate 276 that closely fits and slides along the inner wall of the cavity 211. On the side of the second smooth plate 276 away from the second toothed plate 272, there is a second return spring 277 connected to the inner wall of the cavity 211.

[0043] In the initial state, the elastic force of the second return spring 277 is greater than that of the first return spring 275. The teeth of the second toothed plate 272 are meshed with the tooth grooves 231. On the side of the first smooth plate 274 close to the first return spring 275, there is a reciprocating frame 278 fixedly connected and sliding inside the carrier 21. Inside the reciprocating frame 278, there is a smooth wheel 279 rotatably connected.

[0044] On the upper surface of the base 11, there is an arc-shaped plate 111 fixedly connected through a support base and fitting the outer circumferential surface of the smooth wheel 279. The arc-shaped plate 111 is fixedly connected with a magnetic block 112 through an L-shaped plate arranged at its end face.

[0045] One end of the round block 221 away from the slide plate 222 is fixedly connected with a magnetic plate 224 through an extension rod, and the magnetic plate 224 and the magnetic block 112 are magnetically connected.

[0046] Reference Figures 1-9 , during the traditional ceramic drying process, energy consumption is an important issue. In the ceramic industry, traditional drying methods, such as hot air drying, have problems such as high rejection rate, long drying cycle, and high energy consumption. If microwave-assisted drying technology is adopted, the drying cycle can be shortened and energy consumption can be reduced. However, the microwave penetration ability weakens with the increase in the thickness of the ceramic blank. For a blank with a certain thickness, microwaves can penetrate, but if the blank is too thick or the stacking layers are too many, the microwave penetration ability will significantly decrease, resulting in uneven drying between blanks. If batch drying is considered, the production efficiency will be greatly reduced;

[0047] To overcome the above-mentioned defects, the present invention designs a multi-layer ceramic blank microwave-assisted continuous drying line.

[0048] Placement of ceramic blanks:

[0049] The present invention can synchronously dry a large number of ceramic green bodies. Therefore, the picking of a large number of ceramics can be carried out manually, by a manipulator, or by an automated device. The ceramic green body to be dried is placed above the carrier plate 25 of the loading part 2. Then, the external drive unit drives the placement frame 13 to slowly rotate inside the frame 12. During the slow rotation, under the action of the gravity of the counterweight 26, the direction of the carrier plate 25 is always upward (relative to the carrier rack 21, the upper surface of the carrier plate 25 always remains in a constant horizontal state), avoiding the shaking and damage of the ceramic green body to be dried. Finally, the placement frame 13 is in an inclined state. At the same time, rows of ceramic green bodies are "arranged in a stepped manner", and the highest point of the front row of ceramic green bodies is slightly lower than the lowest point of the rear row of ceramic green bodies.

[0050] Drying of ceramic green bodies:

[0051] As can be seen from the above, rows of ceramic green bodies are "arranged in a stepped manner", and the height difference between the highest point and the lowest point of the ceramic green body is slightly smaller than the microwave irradiation area of the microwave generator 3. Therefore, when the microwave generator 3 synchronously dries a batch of ceramic green bodies, the ceramic green bodies do not interfere with each other, avoiding the problem that the ceramic green bodies overlap with each other, resulting in a significant decrease in the penetration ability of microwaves and uneven drying between the green bodies.

[0052] Multi-faceted rotation and switching of ceramic green bodies:

[0053] As can be seen from the above, the ceramic green body is always in a static state relative to the carrier plate 25. Therefore, after the "regional arc surface" of the ceramic green body close to the microwave generator 3 is dried, it needs to be rotated by a small angle to switch to the "other regional arc surface", and the small-angle rotation and microwave-assisted drying are repeated until the ceramic green body is dried, thereby achieving a fast and uniform drying effect. Specifically, the core of the present invention is to "achieve the one-way small-angle rotation and switching of the ceramic green body (two-way microwave) by means of bidirectional reciprocating rotation".

[0054] Counterclockwise rotation and switching:

[0055] Taking the left half of the placement frame 13 as an example, when the placement frame 13 rotates counterclockwise, it drives the pusher 27 on the load-carrying part 2 to continuously approach the arc-shaped plate 111. When the smooth wheel 279 on the pusher 27 contacts the arc-shaped plate 111, the arc-shaped plate 111 starts to exert a certain thrust on the smooth wheel 279, and the thrust gradually increases. (In the initial state, since the elastic force of the second return spring 277 is greater than the elastic force of the first return spring 275, the second smooth plate 276 pushes the second toothed plate 272 to tightly engage with the tooth groove 231 of the rotating seat 23. At the same time, the first toothed plate 271, the second toothed plate 272, and the chute plate 273 are an integral body. When the second toothed plate 272 engages with the tooth groove 231, the first toothed plate 271 is separated from the tooth groove 231, and only one of them engages with the tooth groove 231.) Under the pushing force of the arc-shaped plate 111 (for the front section of the arc surface of the arc-shaped plate 111, the thrust on the smooth wheel 279 gradually increases, and for the rear section of the arc surface of the arc-shaped plate 111, the thrust on the smooth wheel 279 remains constant), it drives the smooth wheel 279, the reciprocating frame 278, the first smooth plate 274, the first toothed plate 271, the second toothed plate 272, and the chute plate 273, etc. to have a short-distance displacement in the cavity 211. The first return spring 275 is stretched, the second return spring 277 is compressed, the first toothed plate 271 tightly engages with the tooth groove 231, and the second toothed plate 272 is separated from the tooth groove 231, realizing the meshing switch of the first toothed plate 271 and the second toothed plate 272.

[0056] It rotates until the load-carrying rack 21 contacts the support seat below the arc-shaped plate 111 and stops rotating. At the same time, the magnetic plate 224 slowly rotates to near the end face of the magnetic block 112. At this time, the magnetic block 112 generates an outward magnetic thrust on the magnetic plate 224, driving the round block 221 to perform a short-distance slide along the inner wall of the hollow shaft 22, driving the slide plate 222, the first toothed plate 271, the second toothed plate 272, and the chute plate 273 to perform short-distance slides synchronously. The strong spring 223 undergoes elastic deformation (both ends of the chute plate 273 are installed). The first toothed plate 271 drives the rotating seat 23, the adjusting frame 24, the load-carrying tray 25, and the ceramic blank to rotate synchronously in a small clockwise angle, realizing the synchronous switching of a batch of ceramic blanks to the "other area arc surface" and cooperating with the microwave generator 3 to dry the "other area arc surface".

[0057] Clockwise rotation switching:

[0058] It should be noted that a tooth seat 232 is further provided below the rotating seat 23 of the present invention. When the rotating seat 23 rotates clockwise by a small angle, the teeth on the tooth seat 232 sequentially push the latch 214 to compress the elastic plate 213 inward. After stopping the rotation, under the elastic force of the elastic plate 213, the latch 214 is driven to reset and snap into the teeth on the tooth seat 232 again, preventing the tooth seat 232 from rotating reversely. When the placement frame 13 rotates clockwise, it drives the magnetic plate 224 to preferentially disengage from the end face of the magnetic block 112 (the first tooth plate 271 is still engaged with the tooth groove 231). Under the action of the latch 214, the strong spring 223 cannot drive the first tooth plate 271, the second tooth plate 272, and the chute plate 273 to reset preferentially until the smooth wheel 279 completely disengages from the arc plate 111 (completed instantaneously). Under the strong action of the second return spring 277, the second tooth plate 272 is driven to engage with the tooth groove 231 again, and the first tooth plate 271 is separated from the tooth groove 231 (without switching, the rotating seat 23 cannot rotate). At the same time, the strong spring 223 drives the first tooth plate 271, the second tooth plate 272, and the chute plate 273 to gradually reset. The second tooth plate 272 drives the rotating seat 23, the adjusting frame 24, the loading tray 25, and the ceramic blank to rotate clockwise by a small angle synchronously again (basically the same as the arc range for switching between clockwise and counterclockwise rotations), realizing that a batch of ceramic blanks are synchronously switched to "another regional arc surface" again. Repeating the above rotation operation and cooperating with the microwave generator 3 can achieve a fast and uniform drying effect for a batch of ceramic blanks.

[0059] In summary, the present invention uses the cooperation of the placement frame 13 and the loading part 2, and has the following core functions:

[0060] First, the placement frame 13 rotates slowly around the inside of the frame 12. Under the gravity of the counterweight 26, the direction of the loading tray 25 is always upward, preventing the ceramic blanks to be dried from shaking and being damaged. Finally, the placement frame 13 is in an inclined state, and rows of ceramic blanks are "arranged in a stepped manner", and the ceramic blanks do not interfere with each other, avoiding overlapping of the ceramic blanks and affecting the microwave drying of the microwave generator 3.

[0061] Second, for ceramic blanks of different heights, to avoid the front and rear rows of ceramic blanks from blocking each other, the present invention can also adjust the placement height of the ceramic blanks. By rotating the tooth ring 244 on the adjusting frame 24 with an external screwdriver, the threaded sleeve 242 is driven to rotate up and down around the threaded rod 241, realizing the adjustment of the placement height of the ceramic blanks.

[0062] Thirdly, the core of the present invention lies in "adopting bidirectional reciprocating rotation to achieve the unidirectional small-angle rotation switching of the ceramic blank, and cooperating with the bidirectional microwave generator 3 for drying". During the process of arranging rows of ceramic blanks "in a stepped arrangement", the batch of ceramic blanks can be synchronously rotated by a small angle, saving the trouble of manually rotating each one, and the rotation angle is the same each time, with high accuracy.

[0063] Fourthly, firstly, the counterclockwise rotation switching and the clockwise rotation switching can be achieved only by simply arranging the rotation to switch the "drying arc surface" of the ceramic blank. Secondly, the switching range of the "drying arc surface" is basically constant with high accuracy. Thirdly, the ceramic blank always rotates clockwise, so that the arc surface of the ceramic blank is dried in sequence.

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multi-layer ceramic body microwave-assisted continuous drying line, characterized in that: include: An operating body (1), the operating body (1) comprising a base (11), the base (11) being rotatably connected to a placement frame (13) connected to an external driving unit via a frame (12) arranged on the top thereof; A loading part (2), the loading part (2) comprising a loading rack (21), the loading rack (21) being connected to the inside of the placement frame (13) in a damping rotation manner via a hollow shaft (22) fixedly connected to the end thereof, the loading rack (21) being connected to the inside of the placement frame (13) in a rotation manner, and the rotating seat (23) being provided with a loading plate (25) for placing an external ceramic blank via an adjustment frame (24) arranged on the upper surface thereof, and a counterweight block (26) being fixedly connected to the lower surface of the loading rack (21); The base (11) is provided with a microwave generator (3) via a mounting plate arranged on its upper surface, and two microwave generators (3) are provided and are symmetrically distributed with the frame (12) as the center; The object carrier (21) is provided with a pusher (27) for adjusting the rotation position of the rotating seat (23) through a cavity (211) opened inside the carrier (21); The pushing member (27) comprises a first tooth plate (271) and a second tooth plate (272), the first tooth plate (271) and the second tooth plate (272) are symmetrically distributed with the rotating seat (23) as the center, the first tooth plate (271) and the second tooth plate (272) are fixedly connected via a slide plate (273), the inner wall of the hollow shaft (22) is slidably connected with a round block (221), the end surface of the round block (221) is fixedly connected with a slide plate (222) that slides with the inner wall of the slide plate (273) via a straight rod, the slide plate (222) is provided with a strong spring (223) connected to the inner wall of the cavity (211) on the side away from the slide plate (273), the first A first smooth plate (274) that slides with the inner wall of the cavity (211) is tightly fitted on the side of the tooth plate (271), and a first return spring (275) connected to the inner wall of the cavity (211) is provided on the side of the first smooth plate (274) away from the first tooth plate (271); a second smooth plate (276) that slides with the inner wall of the cavity (211) is tightly fitted on the side of the second tooth plate (272), and a second return spring (277) that is connected to the inner wall of the cavity (211) is provided on the side of the second smooth plate (276) away from the second tooth plate (272); in an initial state, the elastic force of the second return spring (277) is greater than the elastic force of the first return spring (275).

2. The multi-layer ceramic body microwave-assisted continuous drying line according to claim 1, characterized in that: The adjusting frame (24) comprises a threaded rod (241), the bottom of which is fixedly connected to the upper surface of the rotating seat (23), the outer circumferential surface of the threaded rod (241) is threadedly connected to a threaded sleeve (242) which rotates with the lower surface of the loading plate (25), the upper surface of the rotating seat (23) is provided with a rotating frame (243) which rotates with the lower surface of the loading plate (25), two rotating frames (243) are provided and are symmetrically distributed with the threaded rod (241) as the center, and the loading plate (25) is transmission-connected to the threaded sleeve (242) via a gear ring (244) provided on the lower surface of the loading plate (25).

3. The multi-layer ceramic body microwave-assisted continuous drying line according to claim 1, characterized in that: The object carrier (21) is provided with a built-in cavity (212) in communication with the cavity (211), the built-in cavity (212) is connected to a clamping block (214) via an elastic plate (213) arranged on the inner wall thereof, the circumferential outer surface of the rotating seat (23) is provided with a tooth groove (231), the lower surface of the rotating seat (23) is fixedly connected with a tooth seat (232) which rotates with the bottom of the inner wall of the built-in cavity (212), and the circumferential teeth of the tooth seat (232) are engaged with the clamping block (214).

4. The multi-layer ceramic body microwave-assisted continuous drying line according to claim 3, characterized in that: The teeth of the second toothed plate (272) are meshedly connected with the tooth grooves (231); the first smooth plate (274) is fixedly connected to a reciprocating frame (278) that slides inside the object carrier (21) on one side close to the first return spring (275); and a smooth wheel (279) is rotatably connected inside the reciprocating frame (278).

5. The multi-layer ceramic body microwave-assisted continuous drying line according to claim 4, characterized in that: The upper surface of the base (11) is fixedly connected to an arc-shaped plate (111) that fits the outer circumferential surface of the smooth wheel (279) via a support seat, and the arc-shaped plate (111) is fixedly connected to a magnetic block (112) via an L-shaped plate arranged on its end surface.

6. The multi-layer ceramic body microwave-assisted continuous drying line according to claim 5, characterized in that: One end of the round block (221) away from the slide plate (222) is fixedly connected to a magnetic plate (224) via an extension rod, and the magnetic plate (224) and the magnetic block (112) are magnetically connected.

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