A resin drying device

Abstract

The application provides a resin drying device and relates to the technical field of resin drying. The resin drying device comprises a machine box, a conveying line body is arranged in the machine box, a plurality of mounting racks are fixedly installed in the machine box, a drying assembly is installed in the mounting rack, and the drying assembly is located above the conveying line body. The resin is dried in a cylindrical shape through the arrangement of the rotary cylinder and the drying inner core, which can improve the drying efficiency and ensure the uniformity of drying. The rotary cylinder rotates relative to the drying inner core, the reflection guide strip and the outer guide strip are mutually offset, the drying gas in the resin can be quickly discharged, air bubbles are not easily generated, the drying quality is high, the resin after drying is pushed out of the drying assembly through the discharging ring and then falls on the conveying line body and is automatically conveyed out. The whole process is automatically processed without manual intervention, the drying efficiency is high, the temperature change of the drying machine is more gentle, and the infrared drying machine has a more flexible temperature control and energy efficiency adjustment mode.

Description

Technical Field

[0001] This invention relates to the field of resin drying technology, and in particular to a resin drying apparatus. Background Technology

[0002] Synthetic resins are a class of artificially synthesized polymer compounds. They possess or exceed the inherent properties of natural resins and are the basic raw materials for manufacturing synthetic fibers, coatings, adhesives, insulation materials, etc.

[0003] Resins may contain moisture, solvents, or volatile components during processing. These components 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 utilizes infrared radiation to directly heat the resin surface, accelerating the evaporation of moisture or solvents.

[0004] A search revealed Chinese patent CN218645980U, which discloses a drying component and an infrared resin drying device. The device includes a drying cylinder and infrared heating tubes located inside the drying cylinder. A feed hopper is fixedly connected to the upper end of the drying cylinder, and a discharge hopper is located at the lower end. An auger is rotatably connected to the inner wall of the top of the drying cylinder, and a storage plate, shaped like a funnel, is located at the lower end of the auger. A metal mesh is fixedly connected to the lower end of the storage plate, and several guide plates are evenly inclined and connected to the inner side wall of the metal mesh. Several infrared heating tubes are evenly arranged on the outer side of the metal mesh. By turning on the motor, the auger rotates, causing resin particles from the storage plate to fall into the metal mesh. These particles then fall layer by layer through the guide plates, slowing their descent and extending the time they are baked by the infrared heating tubes, thus drying the resin particles.

[0005] Based on the above research and in light of real-world problems, it was found that existing resin drying equipment can only dry solid granular resin and cannot dry liquid resin. Common liquid resin dryers typically involve directly placing the liquid resin under infrared drying lamps. Since the resin is liquid, it's difficult to ensure uniform thickness, leading to uneven drying. Furthermore, liquid resin contains moisture, and the internal gases cannot escape quickly during drying, causing bubbling and affecting drying quality. Moreover, existing equipment can only adjust the drying temperature by controlling the power of the infrared drying lamps, limiting the adjustment range. Directly adjusting the temperature during the drying process can easily lead to over-drying, scorching, or deformation of the material surface. Summary of the Invention

[0006] To address the issue that existing resin drying equipment can only dry solid granular resin and cannot dry liquid resin, commonly used liquid resin dryers typically place the liquid resin directly under infrared drying lamps. Since the resin is liquid, it's difficult to ensure uniform thickness, leading to uneven drying. Furthermore, liquid resin contains moisture, and the internal gases cannot escape quickly during drying, causing bubbling and affecting drying quality. Moreover, existing equipment can only adjust the drying temperature by controlling the power of the infrared drying lamps, limiting the adjustment range. Directly adjusting the temperature during the drying process can easily lead to over-drying, scorching, or deformation of the material surface.

[0007] The technical solutions provided by the embodiments of the present invention are as follows: An embodiment of the present invention provides a resin drying device, including a housing, a conveyor line is provided inside the housing, multiple sets of mounting frames are fixedly installed inside the housing, and drying components are installed inside the mounting frames, with the drying components located above the conveyor line; The drying assembly includes a support cylinder fixedly installed in a mounting frame. A rotating cylinder is rotatably installed at the bottom of the support cylinder, and a valve plate is rotatably installed at the bottom of the rotating cylinder. A connecting rod is welded inside the support cylinder, and a drying inner core is fixedly installed at the bottom of the connecting rod. A drying gap is provided between the rotating cylinder and the drying inner core. The top of the drying inner core is conical and made of double-layer hollow transparent glass. Carbon dioxide gas is injected into the drying inner core. Multiple sets of outward protrusions are arranged in a ring on the outer side of the drying inner core, and multiple sets of inward protrusions are arranged in a ring on the inner side of the drying inner core. The inward and outward protrusions are staggered. A mounting column is fixedly installed inside the drying inner core. Multiple sets of infrared drying lamps are installed in a ring on the outer side of the mounting column. Multiple sets of reflective guide strips are arranged in a ring on the inner wall of the rotating cylinder. The outer surface of the reflective guide strips is arc-shaped, and the reflective guide strips are distributed correspondingly to the inward protrusions.

[0008] Optionally, the inner wall of the support tube is provided with multiple sets of fixed guide strips in a ring, and the fixed guide strips are designed to correspond to the reflective guide strips. A feeding ring is slidably connected inside the support tube, and a guide groove is opened in a ring on the outer side of the feeding ring. The fixed guide strips and the reflective guide strips can be slidably connected in the guide groove in a sealed manner. A smoke exhaust hole is opened through the inside of the feeding ring, and a feeding hopper is fixedly installed on the top of the connecting rod.

[0009] Optionally, the bottom of the support cylinder is provided with a swivel groove, the swivel cylinder is rotatably installed in the swivel groove, a bearing is provided between the swivel cylinder and the swivel groove, and a sealing ring is fixedly installed at the bottom of the swivel groove, the sealing ring being sleeved on the outside of the swivel cylinder.

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

[0011] Optionally, the connecting rod has an internal mounting hole, the drying core is inserted into the mounting hole, and is fixedly installed in the mounting hole by bolts.

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

[0013] Optionally, the bottom of the feeding hopper is provided with multiple sets of discharge pipes, which are located directly above the inclined part of the drying inner core.

[0014] Optionally, a lifting cylinder is fixedly installed on the top of the connecting rod. The exhaust port consists of a valve chamber, a bottom hole, and an exhaust port. A piston baffle is slidably connected inside the valve chamber. The bottom hole is opened at the bottom end of the valve chamber. The piston baffle can block the bottom hole. The exhaust port is connected to the side of the valve chamber, and the exhaust end of the exhaust port is located at the top of the feeding ring.

[0015] Optionally, the top of the drying core is provided with an air inlet pipe. The air inlet pipe adopts a double-layer design, with the outer layer being an insulation pipe and the inner layer being a copper pipe. The outer layer is connected to the air outlet of the exhaust hole, and the inner layer is connected to the drying core.

[0016] Optionally, the tops of the fixed guide bar and the feeding ring are both designed to be inclined inwards, and the discharge port of the chassis is provided with a baffle.

[0017] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following: (1) In this invention, the resin is dried in a cylindrical shape by setting the rotary drum and the drying inner core, which not only improves the drying efficiency but also ensures the uniformity of drying. Furthermore, by rotating the rotary drum relative to the drying inner core and misaligning the reflective guide strip and the outer guide strip, the drying gas in the resin can be discharged quickly, making it less likely to generate bubbles and resulting in high drying quality.

[0018] (2) In this invention, the drying core is made of double-layer hollow transparent glass and carbon dioxide gas is injected inside. Carbon dioxide gas can absorb infrared radiation, which means that it will reduce the transmittance of infrared rays of certain wavelengths, thereby indirectly controlling 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 this invention, liquid resin is injected into the drying assembly through the feeding hopper, and the waste gas generated by the resin drying is directly discharged to a special treatment device through the exhaust port, ensuring that the waste gas will not be dispersed into the factory. The dried resin is pushed out of the drying assembly through the feeding ring and then falls onto the conveyor line and is automatically conveyed out. The whole process is automated and does not require manual intervention, resulting in high drying efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of a resin drying device provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of a chassis provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of a drying component structure provided in an embodiment of the present invention; Figure 4 This is a cross-sectional view of a drying assembly provided in an embodiment of the present invention; Figure 5 An exploded view of a drying assembly provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of a support tube structure provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of another support tube structure provided in an embodiment of the present invention; Figure 8 A schematic diagram of a rotary cylinder structure provided in an embodiment of the present invention; Figure 9 This is a schematic cross-sectional view of a drying inner core provided in an embodiment of the present invention; Figure 10 This is a schematic cross-sectional view of the feeding ring provided in an embodiment of the present invention.

[0022] Reference numerals: 1. Chassis; 11. Baffle; 12. Mounting frame; 2. Conveyor line; 3. Support cylinder; 31. Drive wheel; 32. Connecting rod; 33. Fixed guide bar; 34. Rotary groove; 35. Sealing ring; 4. Rotary cylinder; 41. Outer arc-shaped rack; 42. Reflective guide bar; 43. Stopper; 5. Valve plate; 6. Drying inner core; 61. Outer protrusion; 62. Inner protrusion; 63. Mounting column; 64. Infrared drying lamp; 7. Lifting cylinder; 71. Piston baffle; 8. Feeding ring; 81. Guide groove; 82. Valve cavity; 83. Bottom hole; 84. Exhaust hole; 9. Feeding hopper.

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

[0024] The technical solutions of the present invention will now be described with reference to the accompanying drawings. It should also be noted that, 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 use other alternative methods to implement the invention; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0025] like Figures 1 to 10 As shown, an embodiment of the present invention provides a resin drying device, including a housing 1, a conveyor line 2 disposed inside the housing 1, and multiple sets of mounting frames 12 fixedly installed inside the housing 1. Drying components are installed inside the mounting frames 12 and are located above the conveyor line 2. The drying assembly includes a support cylinder 3 fixedly installed in the mounting frame 12. A rotating cylinder 4 is rotatably installed at the bottom of the support cylinder 3. A valve plate 5 is rotatably installed at the bottom of the rotating cylinder 4. A connecting rod 32 is welded inside the support cylinder 3. A drying core 6 is fixedly installed at the bottom of the connecting rod 32. A drying gap is provided between the rotating cylinder 4 and the drying core 6. The top of the drying core 6 is conical. The drying core 6 is made of double-layer hollow transparent glass. Carbon dioxide gas is injected into the drying core 6. Multiple sets of external protrusions 61 are arranged in a ring on the outer side of the drying core 6. Multiple sets of internal protrusions 62 are arranged in a ring on the inner side of the drying core 6. The internal protrusions 62 and external protrusions 61 are staggered. An installation column 63 is fixedly installed inside the drying core 6. Multiple sets of infrared drying lamps 64 are installed in a ring on the outer side of the installation column 63. Multiple sets of reflective guide strips 42 are arranged in a ring on the inner wall of the rotating cylinder 4. The outer surface of the reflective guide strips 42 is arc-shaped. The reflective guide strips 42 are distributed correspondingly to the internal protrusions 62. The inner wall of the support cylinder 3 is provided with multiple sets of fixed guide strips 33 in a ring. The fixed guide strips 33 are designed to correspond to the reflective guide strips 42. The support cylinder 3 is slidably connected to a feeding ring 8. The outer side of the feeding ring 8 is provided with a guide groove 81. The fixed guide strips 33 and the reflective guide strips 42 can be slidably connected in the guide groove 81 in a sealed manner. The feeding ring 8 is provided with a smoke exhaust hole through it. The top of the connecting rod 32 is fixedly installed with a feeding hopper 9.

[0026] During feeding, the feeding ring 8 rises away from the fixed guide strip 33. Since the top of the drying core 6 is conical, the feeding ring 8 and the drying core 6 are stored in the feeding space. Liquid resin falls into the feeding space through the feeding hopper 9, and then flows into the drying gap under the guidance of the drying core 6. When the resin is injected to the top of the reflective guide strip 42, the injection stops. At this time, the feeding ring 8 is controlled to descend. The feeding ring 8 descends to the position of the fixed guide strip 33. The fixed guide strip 33 and the guide groove 81 form a seal, and the inner wall of the feeding ring 8 and the drying core 6 form a seal. The feeding ring 8 seals the top of the drying gap, and there is a certain exhaust gap between the feeding ring 8 and the resin. Since the inner protrusion 62 and the outer protrusion 61 are staggered, and the reflective guide strip 42 and the inner protrusion 62 are correspondingly distributed, the resin thickness in the drying gap is uniform. Drying: The infrared drying lamps 64 are activated. The ring-shaped infrared drying lamps 64 uniformly dry the cylindrical resin. It should be noted that the infrared radiation is adjusted to mid-wave infrared radiation, with a wavelength range of 1.5µm to 5.0µm. Through the preset drying spacing, the resin thickness is made to meet the requirements of mid-wave infrared radiation. Carbon dioxide is used, which can absorb some of the infrared radiation in this band and is low in cost. Carbon dioxide is injected into the drying core 6. When infrared rays pass through, some are absorbed. Therefore, the infrared transmittance can be adjusted by controlling the carbon dioxide concentration, thereby adjusting the drying temperature. This provides a more flexible temperature control and energy efficiency adjustment method for the infrared dryer, suitable for different resins. At the same time, due to the greenhouse effect of the carbon dioxide layer... This allows the absorbed infrared radiation to be re-radiated inside the glass, resulting in a gentler temperature change in the dryer. During the drying process, temperature adjustments have less impact on the resin. Furthermore, the staggered distribution of the inner protrusion 62 and outer protrusion 61 ensures uniform infrared temperature reaching the resin. By controlling the forward and reverse rotation of the rotating drum 4 during the drying process, the drum 4 drives the reflective guide strip 42 to rotate relative to the outer protrusion 61, causing the internal resin to be misaligned. This allows the drying gas generated inside to be discharged through the exhaust port, preventing the formation of air bubbles inside the resin. Simultaneously, as the drum 4 rotates, the positions of the reflective guide strip 42 and the infrared drying lamp 64 change, altering the angle of the infrared light reflected by the reflective guide strip 42. This results in more uniform scattering of infrared light into the resin, leading to a better drying effect. Material feeding: After drying is completed, the rotary drum 4 is reset, the fixed guide strip 33 corresponds to the reflective guide strip 42, and then the control valve plate 5 is opened, the feeding ring 8 descends, the feeding ring 8 presses the dried resin out of the drying gap and onto the conveyor line 2, and the conveyor line 2 transports the dried resin to the next station. The whole process is automated and requires no manual intervention, resulting in high drying efficiency.

[0027] In one possible implementation, based on the above embodiments, the support cylinder 3 is provided with a swivel groove 34 at its bottom, the swivel cylinder 4 is rotatably installed in the swivel groove 34, a bearing is provided between the swivel cylinder 4 and the swivel groove 34, and a sealing ring 35 is fixedly installed at the bottom of the swivel groove 34. The sealing ring 35 is sleeved on the outside of the swivel cylinder 4, which is convenient for installation.

[0028] Furthermore, a drive motor is fixedly installed on the outer side of the support cylinder 3, and a drive wheel 31 is fixedly installed on the output end of the drive motor. An outer arc-shaped rack 41 is fixedly installed on the outer side of the rotating cylinder 4, and the drive wheel 31 meshes with the outer arc-shaped rack 41.

[0029] By controlling the forward and reverse rotation of the drive motor, the drive motor drives the drive wheel 31 to rotate in both directions. The drive wheel 31 drives the rotating cylinder 4 to rotate in both directions via the outer arc rack 41. Alternatively, the forward and reverse rotation of the drive motor can be controlled by setting a stop 43.

[0030] In one possible implementation, based on the above embodiments, the connecting rod 32 has an internal mounting hole, the drying core 6 is inserted into the mounting hole and fixed in the mounting hole by bolts, and this design facilitates the installation of the drying core 6.

[0031] In one possible implementation, based on the above embodiments, a rotary motor is fixedly installed on the outer side of the rotary cylinder 4, the output end of the rotary motor is fixedly connected to the valve plate 5, and a stopper 43 is fixedly installed at the bottom of the rotary cylinder 4. This design facilitates the opening and closing of the valve plate 5.

[0032] In one possible implementation, based on the above embodiments, the bottom of the feeding hopper 9 is provided with multiple sets of discharge pipes, which are located directly above the inclined part of the drying inner core 6. This design allows the resin to be discharged more evenly into the drying gap.

[0033] In one possible implementation, based on the above embodiments, a lifting cylinder 7 is fixedly installed on the top of the connecting rod 32. The exhaust port is composed of a valve chamber 82, a bottom hole 83, and an exhaust port 84. A piston baffle 71 is slidably connected inside the valve chamber 82. The bottom hole 83 is opened at the bottom end of the valve chamber 82. The piston baffle 71 can block the bottom hole 83. The exhaust port 84 is connected to the side of the valve chamber 82, and the exhaust end of the exhaust port 84 is located at the top of the feeding ring 8.

[0034] During feeding, the lifting cylinder 7 is controlled to operate. The lifting cylinder 7 drives the feeding ring 8 to rise through the piston baffle 71. Since the top of the drying inner core 6 is conical, the feeding ring 8 and the drying inner core 6 are stored in the feeding space. During drying, the lifting cylinder 7 is controlled to operate. Due to the friction between the feeding ring 8 and the fixed guide bar 33, the lifting cylinder 7 first drives the piston baffle 71 to descend relative to the feeding ring 8. The piston baffle 71 blocks the bottom hole 83. Then, the lifting cylinder 7 pushes the feeding ring 8 to descend. When the fixed guide bar 33 is inserted into the guide groove 81, the lifting cylinder 7 is controlled to rise. The lifting cylinder 7 drives the piston baffle 71 to rise relative to the feeding ring 8. The piston baffle 71 opens the bottom hole 83. The bottom hole 83 is connected to the exhaust hole 84. The gas generated during drying can be smoothly discharged through the bottom hole 83 and the exhaust hole 84. During material feeding, the lifting cylinder 7 is controlled to operate. Due to the friction between the feeding ring 8 and the fixed guide bar 33, the lifting cylinder 7 first drives the piston baffle 71 to descend relative to the feeding ring 8. The piston baffle 71 blocks the bottom hole 83. Then the lifting cylinder 7 pushes the feeding ring 8 to descend, and the feeding ring 8 pushes out the resin. Since the bottom hole 83 is blocked, the resin will not be discharged through the bottom hole 83, and the feeding is stable. Using this embodiment, there is no need to install valves in the smoke exhaust port, resulting in a simple structure and easy control.

[0035] In one possible implementation, an air inlet pipe is provided at the top of the drying inner core 6. The air inlet pipe adopts a double-layer design, with an outer layer being an insulation pipe and an inner layer being a copper pipe. The outer layer is connected to the exhaust port 84, and the inner layer is connected to the drying inner core 6. Through this embodiment, the heat of the waste gas can be used to heat the inner layer, thereby preheating the incoming carbon dioxide and reducing the influence of carbon dioxide temperature on the resin drying temperature.

[0036] In one possible implementation, based on the above embodiments, the tops of both the fixing guide 33 and the feeding ring 8 are designed to be inclined inwards to prevent resin accumulation at the top.

[0037] In one possible implementation, based on the above embodiments, a baffle 11 is provided at the discharge port of the casing 1 to improve the sealing of the casing 1.

[0038] The beneficial effects of the technical solutions provided in the embodiments of the present invention include at least the following: (1) In this invention, the resin is dried in a cylindrical shape by setting the rotary drum and the drying inner core, which not only improves the drying efficiency but also ensures the uniformity of drying. Furthermore, by rotating the rotary drum relative to the drying inner core and misaligning the reflective guide strip and the outer guide strip, the drying gas in the resin can be discharged quickly, making it less likely to generate bubbles and resulting in high drying quality.

[0039] (2) In this invention, the drying core is made of double-layer hollow transparent glass and carbon dioxide gas is injected inside. Carbon dioxide gas can absorb infrared radiation, which means that it will reduce the transmittance of infrared rays of certain wavelengths, thereby indirectly controlling 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.

[0040] (3) In this invention, liquid resin is injected into the drying assembly through the feeding hopper, and the waste gas generated by the resin drying is directly discharged to a special treatment device through the exhaust port, ensuring that the waste gas will not be dispersed into the factory. The dried resin is pushed out of the drying assembly through the feeding ring and then falls onto the conveyor line and is automatically conveyed out. The whole process is automated and does not require manual intervention, resulting in high drying efficiency.

[0041] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the preferred embodiments, while those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0042] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A liquid resin drying apparatus, characterized in that, Includes a chassis (1), inside which a conveyor line (2) is provided, and inside which multiple sets of mounting brackets (12) are fixedly installed, and inside which drying components are installed; The drying assembly includes a support cylinder (3) fixedly installed in a mounting frame (12). A rotating cylinder (4) is rotatably installed at the bottom of the support cylinder (3). A valve plate (5) is rotatably installed at the bottom of the rotating cylinder (4). A connecting rod (32) is welded inside the support cylinder (3). A drying inner core (6) is fixedly installed at the bottom of the connecting rod (32). The top of the drying inner core (6) is conical. The drying inner core (6) is made of double-layer hollow transparent glass. Carbon dioxide gas is injected into the drying inner core (6). The outer ring of the drying core (6) is provided with multiple sets of external protrusions (61), and the inner ring of the drying core (6) is provided with multiple sets of internal protrusions (62). The internal protrusions (62) and external protrusions (61) are staggered. The drying core (6) is fixedly installed with a mounting column (63). Multiple sets of infrared drying lamps (64) are installed in the outer ring of the mounting column (63). The inner wall of the rotary cylinder (4) is provided with multiple sets of reflective guide strips (42). The outer surface of the reflective guide strips (42) is arc-shaped. The reflective guide strips (42) are distributed correspondingly to the internal protrusions (62). The inner wall of the support tube (3) is provided with a number of fixed guide strips (33) in a ring. The fixed guide strips (33) and the reflective guide strips (42) are designed to correspond to each other. The support tube (3) is slidably connected to a feeding ring (8). The outer side of the feeding ring (8) is provided with a guide groove (81). The fixed guide strips (33) and the reflective guide strips (42) can be slidably connected in the guide groove (81). The feeding ring (8) is provided with a smoke exhaust hole through it. The top of the connecting rod (32) is fixedly installed with a feeding hopper (9).

2. The liquid resin drying apparatus according to claim 1, characterized in that, The bottom of the support cylinder (3) is provided with a swivel groove (34), the swivel cylinder (4) is rotatably installed in the swivel groove (34), a bearing is provided between the swivel cylinder (4) and the swivel groove (34), and a sealing ring (35) is fixedly installed at the bottom of the swivel groove (34), and the sealing ring (35) is sleeved on the outside of the swivel cylinder (4).

3. The liquid resin drying apparatus according to claim 2, characterized in that, A drive motor is fixedly installed on the outer side of the support cylinder (3), and a drive wheel (31) is fixedly installed on the output end of the drive motor. An outer arc-shaped rack (41) is fixedly installed on the outer side of the rotating cylinder (4), and the drive wheel (31) meshes with the outer arc-shaped rack (41).

4. The liquid resin drying apparatus according to claim 3, characterized in that, The connecting rod (32) has an installation hole inside, and the drying core (6) is inserted into the installation hole and fixed in the installation hole by bolts.

5. The liquid resin drying apparatus according to claim 1, characterized in that, A rotary motor is fixedly installed on the outside of the rotary cylinder (4), and the output end of the rotary motor is fixedly connected to the valve plate (5). A stopper (43) is fixedly installed at the bottom of the rotary cylinder (4).

6. The liquid resin drying apparatus according to claim 1, characterized in that, The bottom of the feeding hopper (9) is provided with multiple sets of discharge pipes, which are located directly above the inclined part of the drying inner core (6).

7. The liquid resin drying apparatus according to claim 1, characterized in that, A lifting cylinder (7) is fixedly installed on the top of the connecting rod (32). The exhaust port is composed of a valve chamber (82), a bottom hole (83) and an exhaust port (84). A piston baffle (71) is slidably connected inside the valve chamber (82). The bottom hole (83) is opened at the bottom end of the valve chamber (82). The piston baffle (71) can block the bottom hole (83). The exhaust port (84) is connected to the side of the valve chamber (82), and the exhaust end of the exhaust port (84) is located at the top of the feeding ring (8).

8. The liquid resin drying apparatus according to claim 7, characterized in that, The top of the drying core (6) is provided with an air inlet pipe. The air inlet pipe adopts a double-layer design, with the outer layer being an insulation pipe and the inner layer being a copper pipe. The outer layer is connected to the air outlet of the exhaust hole (84), and the inner layer is connected to the drying core (6).

9. The liquid resin drying apparatus according to claim 1, characterized in that, The tops of the fixed guide bar (33) and the feeding ring (8) are both designed to be inclined inward, and the discharge port of the machine box (1) is provided with a baffle (11).

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