Resin drying device

Abstract

The invention provides a resin drying device, and relates to the technical field of resin drying, the resin drying device comprises a case, a conveying line body is arranged in the case, a plurality of groups of mounting racks are fixedly mounted in the case, a drying assembly is mounted in the mounting racks, and the drying assembly is located above the conveying line body. Through the arrangement of the rotary cylinder and the drying inner core, resin is dried in a cylindrical shape, the drying efficiency can be improved, the drying uniformity can be guaranteed, through rotation of the rotary cylinder relative to the drying inner core and mutual dislocation of the reflection guide strips and the outer guide strips, drying gas in the resin can be rapidly exhausted, bubbles are not prone to being generated, and the drying quality is high; the dried resin is pushed out of the drying assembly through the discharging ring, then falls on the conveying line body and is automatically conveyed out, automatic treatment is conducted in the whole process, manual intervention is not needed, the drying efficiency is high, the temperature change of the drying machine is milder, and the infrared drying machine has a more flexible temperature control and energy efficiency adjusting mode.

Description

Technical Field

[0001] The invention relates to the technical field of resin drying, and in particular to a resin drying device. Background Art

[0002] Synthetic resin is a class of artificially synthesized polymer compounds. It is a resin that combines or exceeds the inherent properties of natural resins. It is the basic raw material for manufacturing synthetic fibers, coatings, adhesives, insulating materials, etc.

[0003] During the processing, the resin may contain water, solvents or volatile components, which need to be removed by drying or dehydration to ensure the quality and stability of the final product. Common drying methods for resins include hot air drying, infrared drying, vacuum drying, hot air circulation drying and microwave drying. Infrared drying uses infrared radiation to directly heat the resin surface to accelerate the volatilization of water or solvents.

[0004] After searching, the Chinese patent with publication number: CN218645980U discloses a drying component and an infrared resin drying device, including a drying cylinder and an infrared heating tube, the infrared heating tube is located in the drying cylinder, the upper end of the drying cylinder is fixedly connected to a feeding bin, and the lower end is provided with a discharging bin, an auger is rotatably connected to the inner wall of the top end of the drying cylinder, a storage plate is provided at the lower end of the auger, and the storage plate is funnel-shaped; a metal mesh is fixedly connected to the lower port of the storage plate, a plurality of guide plates are evenly inclinedly connected to the inner end side wall of the metal mesh, and a plurality of infrared heating tubes are provided, which are evenly arranged on the outside of the metal mesh; by turning on the motor, the motor drives the auger to rotate, the resin particles in the storage plate fall into the metal mesh, and fall down layer by layer through the guide plate, slowing down the falling speed of the resin particles, prolonging the time of being baked by the infrared heating tube, and drying the resin particles.

[0005] Based on the above search and combined with actual problems, it is found that the existing resin drying device can only dry solid granular resin, but cannot dry liquid resin. When the commonly used liquid resin dryer is used, the liquid resin is usually placed directly under an infrared drying lamp for drying. Since the resin is liquid, it is difficult to ensure its thickness uniformity, and uneven drying is prone to occur. At the same time, there will be moisture inside the liquid resin. The internal gas cannot be discharged quickly during drying, which can easily cause the resin to bubble and affect the drying quality. Moreover, the existing equipment can only adjust the drying temperature by controlling the power of the infrared drying lamp, and the adjustment range is limited. In addition, directly adjusting the temperature during the drying process can easily cause the material surface to be over-dried, burned or deformed. Summary of the invention

[0006] In order to solve the problem that existing resin drying devices can only dry solid particle resins and cannot dry liquid resins. When commonly used liquid resin dryers are in use, the liquid resin is usually directly placed under an infrared drying lamp for drying. Since the resin is liquid, it is difficult to ensure the uniformity of its thickness, and uneven drying is likely to occur. At the same time, there is moisture inside the liquid resin, and the gas inside cannot be quickly discharged during drying, which easily causes the resin to foam and affects the drying quality. Moreover, existing equipment can only adjust the drying temperature by controlling the power of the infrared drying lamp, with a limited adjustment range, and directly adjusting the temperature during the drying process easily causes over-drying, charring, or deformation on the surface of the material.

[0007] The technical solutions provided by the embodiments of the present invention are as follows: A resin drying device provided by an embodiment of the present invention includes a chassis. Inside the chassis, a conveying line body is provided. A plurality of mounting frames are fixedly installed inside the chassis, and a drying component is installed inside the mounting frames. The drying component is located above the conveying line body; The drying component includes a support cylinder fixedly installed in the mounting frame. A rotary cylinder is rotatably installed at the bottom of the support cylinder. A valve plate is rotatably installed at the bottom of the rotary cylinder. A connecting rod is welded inside the support cylinder. A drying inner core is fixedly installed at the bottom of the connecting rod. A drying spacing is provided between the rotary cylinder and the drying inner core. The top of the drying inner core is designed in a conical shape. The drying inner core is made of double-layer hollow transparent glass, and carbon dioxide gas is injected into the drying inner core. A plurality of outer protrusions are annularly arranged on the outer side of the drying inner core, and a plurality of inner protrusions are annularly arranged on the inner side of the drying inner core. The inner protrusions and the outer protrusions are staggered. An installation column is fixedly installed inside the drying inner core, and a plurality of infrared drying lamps are annularly installed on the outer side of the installation column. A plurality of reflection guide strips are annularly arranged on the inner wall of the rotary cylinder. The outer surface of the reflection guide strips is designed in an arc shape, and the reflection guide strips are correspondingly distributed with the inner protrusions.

[0008] Optionally, a plurality of fixed guide strips are annularly arranged on the inner wall of the support cylinder, and the fixed guide strips are correspondingly designed with the reflection guide strips. A blanking ring is slidably connected inside the support cylinder. Guide grooves are annularly opened on the outer side of the blanking ring. Both the fixed guide strips and the reflection guide strips can be hermetically slidably connected in the guide grooves. A smoke exhaust hole is penetrated through the inside of the blanking ring. A feeding hopper is fixedly installed at the top of the connecting rod.

[0009] Optionally, a rotary groove is opened at the bottom of the support cylinder, and the rotary cylinder is rotatably installed in the rotary groove. A bearing is provided between the rotary cylinder and the rotary groove. A sealing ring is fixedly installed at the bottom of the rotary groove, and the sealing ring is sleeved on the outer side of the rotary cylinder.

[0010] Optionally, a driving motor is fixedly installed on the outer side of the support cylinder, a driving wheel is fixedly installed at the output end of the driving motor, an outer arc-shaped rack is fixedly installed on the outer side of the rotating cylinder, and the driving wheel meshes with the outer arc-shaped rack.

[0011] Optionally, an installation hole is formed inside the connecting rod, the drying inner core is inserted into the installation hole, and is fixedly installed in the installation hole by bolts.

[0012] Optionally, a rotating motor is fixedly installed on the outer side of the rotating cylinder, the output end of the rotating motor is fixedly connected to the valve plate, and a stopper is fixedly installed at the bottom of the rotating cylinder.

[0013] Optionally, a plurality of discharge pipes are arranged at the bottom of the feeding hopper, and the discharge pipes are located directly above the inclined part of the drying inner core.

[0014] Optionally, a lifting cylinder is fixedly installed at the top of the connecting rod. The smoke exhaust hole is composed of a valve cavity, a bottom hole and an exhaust hole. A piston baffle is slidably connected inside the valve cavity. The bottom hole is opened at the bottom end of the valve cavity, and the piston baffle can block the bottom hole. The exhaust hole communicates with the side of the valve cavity, and the outlet end of the exhaust hole is located at the top of the blanking ring.

[0015] Optionally, an air inlet pipe is arranged at the top of the drying inner core. The air inlet pipe adopts a double-layer design. The outer layer is a heat preservation pipe, and the inner layer is a copper pipe. The outer layer is communicated with the outlet end of the exhaust hole, and the inner layer is communicated with the drying inner core.

[0016] Optionally, both the fixed guide bar and the top of the blanking ring are designed to incline inward, and a curtain is arranged at the discharge port of the machine box.

[0017] The beneficial effects brought by the technical solution provided by the embodiment of the present invention at least include: (1) In the present invention, through the arrangement of the rotating cylinder and the drying inner core, the resin is dried in a cylindrical shape, which can not only improve the drying efficiency, but also ensure the drying uniformity. Then, by rotating the rotating cylinder relative to the drying inner core, the reflection guide bar and the outer guide bar are mutually misaligned, so that the drying gas in the resin can be quickly discharged, bubbles are not easily generated, and the drying quality is high.

[0018] (2) In the present invention, the drying inner core adopts double-layer hollow transparent glass, and carbon dioxide gas is injected inside. The carbon dioxide gas can absorb infrared radiation, which means that it will reduce the infrared transmittance of certain wavelengths, thereby achieving indirect control of infrared drying. In addition, the greenhouse effect of the carbon dioxide layer will cause the absorbed infrared radiation to be re-radiated inside the glass, making the temperature change of the dryer more gentle, and providing a more flexible temperature control and energy efficiency adjustment method for the infrared dryer.

[0019] (3) In the present invention, liquid resin is injected into the drying assembly through a feeding hopper, and the exhaust gas generated by resin drying is directly discharged to a dedicated treatment device through a smoke exhaust hole, ensuring that the exhaust gas does not disperse into the factory. After drying, the resin is pushed out of the drying assembly through a discharging ring and then falls onto the conveying line body, where it is automatically conveyed out. The whole process is automated without manual intervention, and the drying efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 1 Overall structural schematic diagram of a resin drying device provided by an embodiment of the present invention; Figure 2 Internal structural schematic diagram of a chassis provided by an embodiment of the present invention; Figure 3 Structural schematic diagram of a drying assembly provided by an embodiment of the present invention; Figure 4 Cross-sectional structural schematic diagram of a drying assembly provided by an embodiment of the present invention; Figure 5 Exploded view of a drying assembly provided by an embodiment of the present invention; Figure 6 Structural schematic diagram of a support cylinder provided by an embodiment of the present invention; Figure 7 Another structural schematic diagram of a support cylinder provided by an embodiment of the present invention; Figure 8 Structural schematic diagram of a rotating cylinder provided by an embodiment of the present invention; Figure 9 Cross-sectional structural schematic diagram of a drying inner core provided by an embodiment of the present invention; Figure 10 Cross-sectional structural schematic diagram of a discharging ring provided by an embodiment of the present invention.

[0022] Reference numerals: 1, chassis; 11, curtain; 12, mounting bracket; 2, conveyor line body; 3, support cylinder; 31, drive wheel; 32, connecting rod; 33, fixed guide bar; 34, spiral groove; 35, sealing ring; 4, rotating cylinder; 41, outer arc-shaped rack; 42, reflecting guide bar; 43, stopper; 5, valve plate; 6, drying inner core; 61, outer protrusion; 62, inner protrusion; 63, mounting post; 64, infrared drying lamp; 7, lifting cylinder; 71, piston baffle; 8, blanking ring; 81, guide groove; 82, valve cavity; 83, bottom hole; 84, exhaust hole; 9, feeding hopper.

[0023] As shown in the figure, in order to clearly implement the structure of the embodiments of the present invention, specific structures and devices are marked in the figure. However, this is only for schematic purposes and is not intended to limit the present invention to this specific structure, device, and environment. Those of ordinary skill in the art can adjust or modify these devices and environments according to specific needs. Detailed implementation manners

[0024] The following combines the drawings to describe the technical solutions in the present invention. At the same time, it should be noted here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments. For some well-known technologies, those skilled in the art can also adopt other alternative methods for implementation; moreover, the drawings are only for more specifically describing the embodiments and are not intended to specifically limit the present invention.

[0025] As Figures 1 to 10 shown, an embodiment of the present invention provides a resin drying device, including a chassis 1. Inside the chassis 1, there is a conveyor line body 2. Inside the chassis 1, multiple groups of mounting brackets 12 are fixedly installed. Inside the mounting brackets 12, a drying assembly is installed, and the drying assembly is located above the conveyor line body 2; The drying assembly includes a support cylinder 3 fixedly installed in the mounting bracket 12. At the bottom of the support cylinder 3, a rotating cylinder 4 is rotatably installed. At the bottom of the rotating cylinder 4, a valve plate 5 is rotatably installed. Inside the support cylinder 3, a connecting rod 32 is welded. At the bottom of the connecting rod 32, a drying inner core 6 is fixedly installed. There is a drying gap between the rotating cylinder 4 and the drying inner core 6. The top of the drying inner core 6 is designed in a conical shape. The drying inner core 6 is made of double-layer hollow transparent glass. Carbon dioxide gas is injected into the drying inner core 6. Multiple groups of outer protrusions 61 are annularly arranged on the outside of the drying inner core 6. Multiple groups of inner protrusions 62 are annularly arranged on the inside of the drying inner core 6. The inner protrusions 62 and the outer protrusions 61 are staggered. Inside the drying inner core 6, a mounting post 63 is fixedly installed. Multiple groups of infrared drying lamps 64 are annularly installed on the outside of the mounting post 63. Multiple groups of reflecting guide bars 42 are annularly arranged on the inner wall of the rotating cylinder 4. The outer surface of the reflecting guide bars 42 is designed in an arc shape. The reflecting guide bars 42 are correspondingly distributed with the inner protrusions 62; The inner wall of the support cylinder 3 is annularly provided with multiple groups of fixed guide bars 33. The fixed guide bars 33 are designed corresponding to the reflection guide bars 42. A blanking ring 8 is slidably connected inside the support cylinder 3. A guide groove 81 is annularly opened on the outer side of the blanking ring 8. Both the fixed guide bars 33 and the reflection guide bars 42 can be hermetically slidably connected in the guide groove 81. A smoke exhaust hole is penetrated through the inside of the blanking ring 8. The top of the connecting rod 32 is fixedly installed with a feeding hopper 9.

[0026] During feeding, the blanking ring 8 rises away from the fixed guide bars 33. Since the top of the drying inner core 6 is conically designed, there is a feeding space between the blanking ring 8 and the drying inner core 6. The liquid resin falls into the feeding space through the feeding hopper 9, and then flows into the drying spacing under the guiding action of the drying inner core 6. When the resin is injected to the top of the reflection guide bar 42, the injection stops. At this time, the blanking ring 8 is controlled to descend. The blanking ring 8 descends to the position of the fixed guide bars 33. A seal is formed between the fixed guide bars 33 and the guide groove 81. A seal is formed between the inner wall of the blanking ring 8 and the drying inner core 6. The blanking ring 8 seals the top of the drying spacing, and there is a certain smoke exhaust spacing between the blanking ring 8 and the resin. Since the inner protrusions 62 and the outer protrusions 61 are staggered, and the reflection guide bars 42 are correspondingly distributed with the inner protrusions 62, the resin thickness in the drying spacing is uniform. Drying: The infrared drying lamps 64 are started. The annularly distributed infrared drying lamps 64 uniformly dry the cylindrical resin. It should be noted that the infrared rays are adjusted to medium-wave infrared radiation with a wavelength range of 1.5 µm to 5.0 µm. Through the preset drying spacing, the resin thickness meets the requirements of medium-wave infrared radiation. At the same time, carbon dioxide is used, which can absorb part of the infrared rays in this band and has a low cost. Carbon dioxide is injected into the drying inner core 6. When the infrared rays pass through, part of them are absorbed. Therefore, the infrared ray passing rate can be adjusted by controlling the carbon dioxide concentration, and further the drying temperature can be adjusted, providing a more flexible temperature control and energy efficiency adjustment method for the infrared dryer, which is applicable to different resins. At the same time, due to the greenhouse effect of the carbon dioxide layer, the absorbed infrared radiation will be re-radiated inside the glass, making the temperature change of the dryer more gentle. During the drying process, the influence of adjusting the temperature on the resin is small. And because the inner protrusions 62 and the outer protrusions 61 are staggered, the infrared ray temperature reaching the resin can be ensured to be uniform. During the drying process, the rotating cylinder 4 is controlled to rotate forward and backward. The rotating cylinder 4 drives the reflection guide bars 42 to rotate relative to the outer protrusions 61, making the internal resin misaligned, so that the drying gas generated inside can be discharged through the smoke exhaust hole, preventing bubbles from being generated inside the resin. At the same time, during the rotation of the rotating cylinder 4, the positions of the reflection guide bars 42 and the infrared drying lamps 64 change, and the angle of the infrared rays reflected by the reflection guide bars 42 changes, making the infrared rays more evenly scattered into the resin, and the drying effect is good. Material discharging: After drying is completed, the rotary cylinder 4 resets, the fixed guide bar 33 corresponds to the reflection guide bar 42, then the control valve plate 5 is opened, the material discharging ring 8 descends, the material discharging ring 8 presses out the dried resin from the drying gap and lands on the conveying line body 2, and the conveying line body 2 conveys the dried resin to the next working station. The whole process is automatically processed without manual intervention, and the drying efficiency is high.

[0027] In a possible implementation manner, on the basis of the above embodiment, it further includes that a rotary groove 34 is opened at the bottom of the support cylinder 3, the rotary cylinder 4 is rotatably installed in the rotary groove 34, a bearing is arranged between the rotary cylinder 4 and the rotary groove 34, a sealing ring 35 is fixedly installed at the bottom of the rotary groove 34, and the sealing ring 35 is sleeved outside the rotary cylinder 4, which is convenient for installation.

[0028] Furthermore, a driving motor is fixedly installed on the outside of the support cylinder 3, a driving wheel 31 is fixedly installed at the output end of the driving motor, an outer arc-shaped rack 41 is fixedly installed on the outside of the rotary cylinder 4, and the driving wheel 31 meshes with the outer arc-shaped rack 41.

[0029] By controlling the forward and reverse rotation of the driving motor, the driving motor drives the driving wheel 31 to rotate forward and reverse, and the driving wheel 31 drives the rotary cylinder 4 to rotate forward and reverse through the outer arc-shaped rack 41. The forward and reverse rotation of the driving motor can also be controlled by additionally arranging a stopper 43.

[0030] In a possible implementation manner, on the basis of the above embodiment, it further includes that an installation hole is opened inside the connecting rod 32, the drying inner core 6 is inserted into the installation hole and is fixedly installed in the installation hole by bolts. Through this design, it is convenient to install the drying inner core 6.

[0031] In a possible implementation manner, on the basis of the above embodiment, it further includes that a rotating motor is fixedly installed on the outside of the rotary cylinder 4, the output end of the rotating motor is fixedly connected to the valve plate 5, and a stopper 43 is fixedly installed at the bottom of the rotary cylinder 4. Through this design, it is convenient for the valve plate 5 to open and close.

[0032] In a possible implementation manner, on the basis of the above embodiment, it further includes that a plurality of discharge pipes are arranged at the bottom of the feeding hopper 9, and the discharge pipes are located directly above the inclined part of the drying inner core 6. Through this design, the resin can be discharged into the drying gap more evenly.

[0033] In a possible implementation manner, on the basis of the above embodiment, it further includes that a lifting cylinder 7 is fixedly installed at the top of the connecting rod 32. The smoke exhaust hole is composed of a valve cavity 82, a bottom hole 83 and an exhaust hole 84. A piston baffle 71 is slidably connected inside the valve cavity 82, the bottom hole 83 is opened at the bottom end of the valve cavity 82, the piston baffle 71 can block the bottom hole 83, the exhaust hole 84 communicates with the side of the valve cavity 82, and the air outlet end of the exhaust hole 84 is located at the top of the material discharging ring 8.

[0034] During feeding, control the lifting cylinder 7 to operate. The lifting cylinder 7 drives the blanking ring 8 to rise through the piston baffle 71. Since the top of the drying inner core 6 is designed in a conical shape, a feeding space is formed between the blanking ring 8 and the drying inner core 6. During drying, control the lifting cylinder 7 to operate. Due to the friction between the blanking ring 8 and the fixed guide bar 33, the lifting cylinder 7 first drives the piston baffle 71 to descend relative to the blanking ring 8. The piston baffle 71 blocks the bottom hole 83. Then the lifting cylinder 7 pushes the blanking ring 8 to descend. When the fixed guide bar 33 is inserted into the guide groove 81, control the lifting cylinder 7 to rise. The lifting cylinder 7 drives the piston baffle 71 to rise relative to the blanking ring 8. The piston baffle 71 opens the bottom hole 83. The bottom hole 83 is communicated with the exhaust hole 84, and the gas generated by drying can be smoothly discharged through the bottom hole 83 and the exhaust hole 84. During discharging, control the lifting cylinder 7 to operate. Due to the friction between the blanking ring 8 and the fixed guide bar 33, the lifting cylinder 7 first drives the piston baffle 71 to descend relative to the blanking ring 8. The piston baffle 71 blocks the bottom hole 83. Then the lifting cylinder 7 pushes the blanking ring 8 to descend. The blanking ring 8 pushes out the resin, and the bottom hole 83 is blocked, so the resin will not be discharged through the bottom hole 83, and the discharging is stable. Adopting this embodiment, there is no need to set a valve in the smoke exhaust hole, the structure is simple, and the control is simple.

[0035] In a possible implementation manner, an air inlet pipe is arranged at the top of the drying inner core 6. The air inlet pipe adopts a double-layer design. The outer layer is a heat preservation pipe, and the inner layer is a copper pipe. The outer layer is communicated with the outlet end of the exhaust hole 84, and the inner layer is communicated with the drying inner core 6. Through the setting of this embodiment, the inner layer can be heated by using the waste gas heat, and then the incoming carbon dioxide can be preheated, reducing the influence of the carbon dioxide temperature on the resin drying temperature.

[0036] In a possible implementation manner, on the basis of the above embodiment, it further includes that both the fixed guide bar 33 and the top of the blanking ring 8 are inclined inward to prevent resin accumulation at the top.

[0037] In a possible implementation manner, on the basis of the above embodiment, it further includes that a curtain 11 is arranged at the discharge port of the chassis 1 to make the sealing performance of the chassis 1 better.

[0038] The beneficial effects brought by the technical solution provided by the embodiment of the present invention at least include: (1) In the present invention, through the setting of the rotating cylinder and the drying inner core, the resin is dried in a cylindrical shape, which can not only improve the drying efficiency, but also ensure the drying uniformity. Then, by rotating the rotating cylinder relative to the drying inner core, the reflection guide bar and the outer guide bar are mutually misaligned, so that the drying gas in the resin can be quickly discharged, bubbles are not easily generated, and the drying quality is high.

[0039] (2) In the present invention, the drying inner core adopts double-layer hollow transparent glass, and carbon dioxide gas is injected inside. The carbon dioxide gas can absorb infrared radiation, which means it will reduce the transmittance of infrared rays of certain wavelengths, thereby achieving indirect control of infrared drying. In addition, the greenhouse effect of the carbon dioxide layer will cause the absorbed infrared radiation to be re-radiated inside the glass, making the temperature change of the dryer more gentle, providing a more flexible temperature control and energy efficiency adjustment method for the infrared dryer.

[0040] (3) In the present invention, the liquid resin is injected into the drying component through the feeding hopper. The waste gas generated by resin drying is directly discharged to a dedicated treatment device through the exhaust holes, ensuring that the waste gas will not disperse into the factory. After drying, the resin is pushed out of the drying component through the discharging ring and then falls on the conveying line body and is automatically conveyed out. The whole process is automated without manual intervention, and the drying efficiency is high.

[0041] The present invention covers any alternatives, modifications, equivalent methods, and solutions made within the spirit and scope of the present invention. To enable the public to have a thorough understanding of the present invention, specific details are described in detail in the preferred embodiments of the present invention. However, those skilled in the art can fully understand the present invention without these detailed descriptions. In addition, well-known methods, processes, procedures, components, and circuits are not described in detail to avoid unnecessary confusion to the essence of the present invention.

[0042] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A resin drying device, characterized in that: It comprises a chassis (1), a conveyor line body (2) is arranged inside the chassis (1), a plurality of mounting racks (12) are fixedly installed inside the chassis (1), and a drying assembly is installed inside the mounting racks (12); The drying assembly comprises a support cylinder (3) fixedly mounted in a mounting frame (12); a rotary cylinder (4) is rotatably mounted on the bottom of the support cylinder (3); a valve plate (5) is rotatably mounted on the bottom of the rotary cylinder (4); a connecting rod (32) is welded inside the support cylinder (3); a drying inner core (6) is fixedly mounted on the bottom of the connecting rod (32); the top of the drying inner core (6) is designed to be conical; a plurality of groups of outer protrusions (61) are arranged in an annular shape on the outer side of the drying inner core (6); a plurality of groups of inner protrusions (62) are arranged in an annular shape on the inner side of the drying inner core (6); the inner protrusions (62) and the outer protrusions (61) are arranged in an alternating manner; a mounting column (63) is fixedly mounted inside the drying inner core (6); a plurality of groups of infrared drying lamps (64) are arranged in an annular shape on the outer side of the mounting column (63); a plurality of groups of reflective guide strips (42) are arranged in an annular shape on the inner wall of the rotary cylinder (4); and the outer surface of the reflective guide strips (42) is designed to be arc-shaped.

2. The resin drying device according to claim 1, characterized in that: The inner wall of the support tube (3) is provided with a plurality of groups of fixed guide bars (33) in an annular shape. The fixed guide bars (33) and the reflective guide bars (42) are designed correspondingly. A feeding ring (8) is slidably connected inside the support tube (3). A guide groove (81) is provided in an annular shape on the outer side of the feeding ring (8). The fixed guide bars (33) and the reflective guide bars (42) can be sealingly slidably connected in the guide groove (81). A smoke exhaust hole is provided through the inside of the feeding ring (8). A feeding hopper (9) is fixedly installed on the top of the connecting rod (32).

3. The resin drying device according to claim 1, characterized in that: The bottom of the support cylinder (3) is provided with a rotation groove (34), the rotation cylinder (4) is rotatably mounted in the rotation groove (34), a bearing is provided between the rotation cylinder (4) and the rotation groove (34), and a sealing ring (35) is fixedly mounted at the bottom of the rotation groove (34), the sealing ring (35) being sleeved on the outer side of the rotation cylinder (4).

4. The resin drying device according to claim 3, characterized in that: A driving motor is fixedly mounted on the outside of the support cylinder (3), a driving wheel (31) is fixedly mounted on the output end of the driving motor, an outer arc-shaped rack (41) is fixedly mounted on the outside of the rotating cylinder (4), and the driving wheel (31) meshes with the outer arc-shaped rack (41).

5. The resin drying device according to claim 4, characterized in that: A mounting hole is provided inside the connecting rod (32), and the drying inner core (6) is inserted into the mounting hole and fixed in the mounting hole by means of bolts.

6. The resin drying device according to claim 1, characterized in that: A rotating motor is fixedly mounted on the outer side of the rotating cylinder (4), the output end of the rotating motor is fixedly connected to the valve plate (5), and a stopper (43) is fixedly mounted on the bottom of the rotating cylinder (4).

7. The resin drying device according to claim 2, characterized in that: A plurality of discharge pipes are provided at the bottom of the upper hopper (9), and the discharge pipes are located directly above the inclined portion of the drying inner core (6).

8. The resin drying device according to claim 2, characterized in that: A lifting cylinder (7) is fixedly mounted on the top of the connecting rod (32); the smoke exhaust hole is composed of a valve cavity (82), a bottom hole (83) and an exhaust hole (84); a piston baffle (71) is slidably connected to the inside of the valve cavity (82); the bottom hole (83) is opened at the bottom end of the valve cavity (82); the piston baffle (71) can block the bottom hole (83); the exhaust hole (84) is connected to the side of the valve cavity (82), and the exhaust end of the exhaust hole (84) is located at the top of the discharge ring (8).

9. The resin drying device according to claim 1, characterized in that: An air inlet pipe is arranged on the top of the drying inner core (6). The air inlet pipe adopts a double-layer design, with an outer layer being a heat preservation pipe and an inner layer being a copper pipe. The outer layer is connected to the air outlet end of the exhaust hole (84), and the inner layer is connected to the drying inner core (6).

10. The resin drying device according to claim 2, characterized in that: The tops of the fixed guide bar (33) and the discharge ring (8) are both designed to be inclined inwards, and the discharge port of the chassis (1) is provided with a barrier curtain (11).

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