A feeding device for high-viscosity resin production

Abstract

This invention discloses a feeding device for the production of high-viscosity resin, belonging to the technical field of resin production equipment. It includes a feeding cylinder with a cover plate at the top containing a feed hopper and a support at the bottom. A spiral-pneumatic composite conveying assembly and an anti-clogging coordination assembly are coaxially arranged inside the feeding cylinder, and the two are synchronously driven by a drive assembly. The drive assembly includes a hollow first transmission rod extending into the feeding cylinder, the end of which is connected to the anti-clogging coordination assembly, and has an independent air passage inside. The spiral-pneumatic composite conveying assembly includes a second transmission rod that rotates in opposite directions coaxially with the first transmission rod and spiral blades fixed thereon. Below the feeding cylinder is a discharge hopper and a gravity-mechanical hybrid energy-saving conveying assembly. This conveying assembly achieves a combined spiral conveying and pneumatic assistance effect through hollow double transmission rods, combined with a steerable anti-clogging mechanism and an energy-saving conveying chain formed by multiple gravity slides and conveyor belts, making it particularly suitable for the continuous production of high-viscosity resins.

Description

Technical Field

[0001] This invention relates to the field of resin production equipment technology, specifically to a continuous feeding device suitable for high viscosity resins, and more particularly to an integrated conveying device that integrates spiral-pneumatic composite conveying, synergistic anti-blocking, and tiered utilization of gravitational potential energy. Background Technology

[0002] In resin production, the conveying of raw material particles and molten intermediates is one of the key processes. Currently, the industry commonly uses single screw conveyors or positive pressure pneumatic conveyors, which have the following technical drawbacks when handling high-viscosity materials such as epoxy resins and unsaturated polyester resins: Firstly, clogging is a frequent and difficult-to-cure problem. High-viscosity resin particles have strong adhesive properties, easily adhering to the blades and cylinder walls during screw conveying, forming a layer of accumulated material. Furthermore, they readily create stable bridging structures at the discharge hopper. Existing equipment often requires frequent shutdowns for manual cleaning, significantly reducing the effective operating rate of the production line.

[0003] Secondly, energy consumption remains high. In purely mechanically driven screw conveyor systems, most of the motor power is used to overcome the friction between the material and the equipment wall, as well as the internal shear force of the material; while pneumatic conveying systems require a continuous supply of high-pressure air, resulting in even higher energy consumption. Neither method effectively utilizes the gravitational potential energy of the material itself.

[0004] Third, the anti-blocking mechanism is independent of the conveying system. Existing anti-blocking mechanisms mostly use separate motor drives, which not only increases the size of the equipment and the complexity of control, but also makes it impossible to adjust the intensity of the anti-blocking action in real time according to changes in the conveying load, making it difficult to cope with the dynamic blockage risk caused by fluctuations in material viscosity.

[0005] While some improvements have been attempted in the industry to address the aforementioned issues, such as adding vents to the screw to assist conveying and installing stirring rods at the discharge port to prevent clogging, these are all piecemeal optimizations of local structures and have failed to resolve the core contradiction of high-viscosity resin conveying at the system level. Therefore, developing a novel feeding device that integrates screw-pneumatic composite conveying, synchronous and coordinated anti-clogging, and tiered utilization of gravitational potential energy has become an urgent technical problem to be solved in this field. Summary of the Invention

[0006] 1. Technical problem to be solved: In view of the problems existing in the prior art, the purpose of this invention is to overcome the shortcomings of the prior art and provide a feeding device for the production of high viscosity resin, so as to solve the problems of easy blockage, high energy consumption, and lack of coordination between anti-blockage and conveying in the prior art, realize long-term continuous conveying of high viscosity resin, and significantly reduce the energy consumption of equipment operation.

[0007] 2. Technical Solution: To solve the above problems, the present invention adopts the following technical solution.

[0008] A feeding device for the production of high-viscosity resin includes a conveying cylinder, the top of which is sealed with a cover plate with a feed hopper, and the bottom of which is fixedly installed with a support. The conveying cylinder is coaxially equipped with a spiral-pneumatic composite conveying component and an anti-clogging coordination component, which are linked by the same set of drive components; the anti-clogging coordination component includes a blockage-removing rod that is connected to the end of the first drive rod, and is used to agitate the material in the discharge bin to prevent blockage. The drive assembly includes a hollow first transmission rod, the driven end of which extends into the feed cylinder and is connected to the anti-blocking cooperating assembly in a transmission manner, and its internal cavity forms an independent air passage. The spiral-pneumatic composite conveying assembly includes a second transmission rod sleeved outside the first transmission rod and coaxially reversed with it, and a spiral blade is fixed on the second transmission rod; The discharge hopper and gravity-mechanical hybrid energy-saving conveying assembly are sequentially sealed and connected below the conveying cylinder. The gravity-mechanical hybrid energy-saving conveying assembly includes a conveying cylinder, a multi-layer spiral slide disposed inside the conveying cylinder, and an end conveyor belt disposed at the outlet of each spiral slide; wherein each spiral slide outlet is provided with an independent conveyor belt.

[0009] Furthermore, the driving component includes: The protective housing has a first transmission gear plate and a second transmission gear plate arranged axially back and forth inside it. The hollow first transmission rod is fixed at the center of the second transmission gear plate, and the surface of the first transmission rod is provided with equally spaced branch air passage holes. The first transmission gear plate has a second transmission rod fixed at its center. The second transmission rod is rotatably sleeved on the outside of the first transmission rod. The two transmission rods are connected by a sealed bearing to achieve coaxial reversal. A first transmission gear and a second transmission gear are provided between the first transmission gear disc and the second transmission gear disc for meshing transmission, wherein: The first transmission gear meshes with both the first transmission gear disc and the second transmission gear. The second transmission gear meshes with the second transmission gear disc. The gear ratio between the first transmission gear and the second transmission gear is 1.2:1 to 1.5:1; The drive end of the first transmission rod is connected to the output shaft of the first motor via a coupling and is supported by a bearing seat. The bearing seat is provided with an air inlet pipe that communicates with the internal cavity of the first transmission rod. A rotary sealing joint is provided at the connection between the air inlet pipe and the first transmission rod. The surface of the second transmission rod is provided with an air outlet hole, the diameter of which is larger than the diameter of the branch air passage hole by 0.5mm-1mm.

[0010] Furthermore, the surface of the helical blade is provided with 3-5 radial air holes; Compressed air enters the internal cavity of the first transmission rod through the intake pipe, enters the annular gap between the first and second transmission rods through the branch air passage hole, and finally exits from the radial air hole through the air outlet on the second transmission rod, forming a stepped airflow channel.

[0011] Furthermore, the airflow channel formed by the air outlet and the radial air outlet is inclined downwards, forming a 15° reverse angle with the material flow direction.

[0012] Furthermore, the pitch of the helical blades gradually decreases from the feed end to the discharge end, with a change rate of 10%-15%; The radial pores are provided with tungsten carbide coated stainless steel mesh at their openings, with mesh size being 0.6 to 0.8 times the maximum particle size of the material.

[0013] Furthermore, the anti-blocking coordination component includes: The connecting frame fixed to the lower end of the conveying cylinder has a horizontal third transmission gear and a vertical fourth transmission gear that mesh with each other inside. The fourth transmission gear is fixedly connected to the end of the first transmission rod and meshes with the third transmission gear to achieve a transmission steering with an axial angle of 90°. The upper end of the connecting rod is connected to the third transmission gear, and the lower end is uniformly fixed with three sets of stepped unblocking rods along the circumference. The surface of the unblocking rod is integrally formed with a wave-shaped protrusion, and the end is processed into a conical structure with a cone angle of 30°-45°. Its rotation trajectory covers more than 85% of the cross-section of the discharge bin, and there is an eccentricity of 5mm-8mm between its rotation axis and the central axis of the discharge bin.

[0014] Furthermore, the vertical spacing between adjacent unblocking rods is 1 / 4 to 1 / 3 of the height of the discharge hopper, and the three sets of unblocking rods have a 120° phase difference in the rotation direction.

[0015] Furthermore, the multi-layer spiral slide has three layers, with a 20cm vertical drop between adjacent layers; The belt speed of the conveyor belt is 10-15% higher than the material sliding speed at the end of the corresponding slide. The conveyor belt is driven by an independent second motor and its surface is coated with a 2mm thick polyurethane anti-stick layer.

[0016] Furthermore, the inner wall of the conveying cylinder is coated with a nano-ceramic coating with a thickness of 50-80 μm; The discharge hopper and the conveying cylinder are sealed together by a corrugated pipe connecting sleeve, and the inner wall of the corrugated pipe connecting sleeve is fitted with an annular piezoelectric ceramic vibrating plate.

[0017] 3. Beneficial effects: Compared with the prior art, the technical solution provided by this invention has the following advantages: (1) Deep synergy between conveying and anti-blocking is achieved. This invention adopts a coaxial reversing double transmission rod structure driven by a single motor, which simultaneously provides power for three functional modules: screw conveying, pneumatic assistance, and anti-blocking material unloading. This not only significantly reduces the overall size of the drive assembly, but also achieves automatic synchronous matching between conveying speed and anti-blocking action intensity. When the conveying load increases, the rotation speed of the anti-blocking rod automatically increases, without the need for additional detection and control links, fundamentally solving the problem of lag in response of traditional independent drive systems.

[0018] (2) A spiral-pneumatic composite conveying system was constructed, effectively solving the problem of adhesion of high-viscosity materials. This invention uses a stepped air path design to spray compressed air from the surface of the spiral blades at a certain reverse angle, forming an air film isolation layer on the blade surface, while simultaneously shearing and peeling off the adhered materials. Combined with the variable pitch design of the spiral blades and the nano-ceramic coating on the cylinder wall, the amount of high-viscosity resin adhering to the wall is greatly reduced, and the continuous conveying time is increased by more than 10 times compared with traditional devices.

[0019] (3) A gravity-mechanical hybrid energy-saving conveying mode is proposed. This invention uses multi-layer small-drop spiral slides to convert the gravitational potential energy of the material into kinetic energy, enabling the material to obtain a stable initial conveying speed, which is then relayed by the conveyor belt at a speed slightly higher than the material's speed. This design makes full use of the material's own energy and significantly reduces the energy consumption required for mechanical acceleration. Actual measurement data shows that the overall operating energy consumption of this device is 35%-40% lower than that of traditional pure mechanical conveying devices, demonstrating significant energy-saving effects.

[0020] (4) The system reliability is significantly improved. The present invention effectively prevents material backflow and blockage of the gas path through the Venturi effect of the stepped gas path; the unblocking rod adopts a wave-shaped protrusion structure, which can significantly reduce the impact load of the material and avoid fatigue fracture caused by stress concentration; the rotary sealing joint adopts a multi-channel polytetrafluoroethylene sealing ring design, which has no leakage under normal working pressure, and the mean time between failures of key components is significantly extended.

[0021] It should be noted that the structures not described in this invention are not related to the design points and improvement directions of this invention, and are the same as or can be implemented using existing technologies, so they will not be elaborated here. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall exploded structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the structure of the driving component of the present invention; Figure 4 This is a schematic diagram of the spiral-pneumatic composite conveying assembly of the present invention; Figure 5 This is a schematic diagram of the anti-blocking collaborative component of the present invention; Figure 6 This is a schematic diagram of the gravity-mechanical hybrid energy-saving conveying component of the present invention.

[0023] Explanation of the labels in the diagram: 1. Feed cylinder; 2. Cover plate; 3. Feed hopper; 4. Support; 5. Screw-pneumatic composite conveyor assembly; 51. Screw blade; 52. Radial air hole; 53. Air inlet pipe; 6. Anti-blocking coordination component; 61. Connecting frame; 62. Third transmission gear; 63. Fourth transmission gear; 64. Connecting rod; 65. Unblocking rod; 7. Drive assembly; 71. Protective housing; 72. First transmission gear; 73. Second transmission gear; 74. First transmission rod; 75. Bearing housing; 76. First motor; 77. Second transmission rod; 78. Vent; 711. First transmission gear; 712. Second transmission gear; 8. Discharge hopper; 9. Gravity-mechanical hybrid energy-saving conveying assembly; 91. Conveying cylinder; 93. Spiral slide; 94. Conveyor belt; 95. Second motor. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0025] Please see Figures 1-6 This embodiment provides a feeding device for the production of high-viscosity resins, which is mainly used to transport medium-to-high viscosity epoxy resin particles, with a designed conveying capacity of several tons per hour.

[0026] The main structure of the device includes a vertical conveying cylinder 1, which is made of welded stainless steel. The inner diameter is typically set to 250-400mm depending on the conveying capacity requirements, and the height is 1200-2000mm. A cover plate 2 is sealed to the top of the conveying cylinder 1 via a flange. A feed hopper 3 is welded to the center of the cover plate 2, and the upper opening size of the feed hopper 3 can be adapted to the upstream feed hopper interface. Multiple evenly distributed supports 4 are welded to the bottom of the conveying cylinder 1 for fixing the device to the production platform.

[0027] A drive assembly 7 is installed at one end of the feed cylinder 1, and its structure is as follows: Figure 3 As shown. The drive assembly 7 includes a protective housing 71, which is bolted to the end flange of the feed cylinder 1. Inside the protective housing 71, a first transmission gear 72 and a second transmission gear 73 are arranged axially back and forth, both of which are made of alloy steel with a heat treatment process. A hollow first transmission rod 74 is fixedly connected to the center of the second transmission gear 73 by a flat key. Branch air passage holes are equidistantly opened on the surface of the first transmission rod 74 along the axial direction. A second transmission rod 77 is fixedly connected to the center of the first transmission gear 72 by a flat key. The second transmission rod 77 is a hollow structure and is sleeved on the outside of the first transmission rod 74. The two transmission rods are supported by bearings to achieve coaxial and counter-rotation.

[0028] An intermediate gear shaft is provided between the first transmission gear disk 72 and the second transmission gear disk 73, and a first transmission gear 711 and a second transmission gear 712 are mounted on the shaft. The number of teeth of the gears is reasonably selected according to the required 1.2:1 transmission ratio, so that the first transmission rod 74 and the second transmission rod 77 can rotate in opposite directions with a set speed difference.

[0029] One end of the first transmission rod 74 extends out of the protective housing 71 and is connected to the output shaft of the first motor 76 via a bearing seat 75. The first motor 76 is a variable frequency speed control motor, and its power is matched according to the conveying capacity requirements. An air inlet is provided on the side of the bearing seat 75, which is connected to the air inlet pipe 53 via a rotary sealing joint. The rotary sealing joint is equipped with multiple polytetrafluoroethylene sealing rings, and the pre-tightening force is adjusted to a preset process range to ensure no leakage under normal working pressure.

[0030] The spiral-pneumatic composite conveyor assembly 5 is installed inside the conveying cylinder 1, and its structure is as follows: Figure 4 As shown. The spiral blade 51 is made of stainless steel plate welded to the outer wall of the second transmission rod 77. A preset assembly gap is left between the outer diameter of the spiral blade and the inner wall of the conveying cylinder 1. The pitch of the spiral blade gradually decreases from the feeding end to the discharging end, with a change rate of about 12%, to adapt to the compression characteristics of the material during the conveying process.

[0031] Multiple radial air holes 52 are provided on the spiral blades, with the holes angled downwards and forming a preset reverse angle with the material flow direction. Tungsten carbide-coated stainless steel mesh is welded to the opening of each radial air hole 52, with the mesh size set according to the maximum particle size of the material to be conveyed. Corresponding air outlets 78 are provided on the wall of the second drive rod 77, one-to-one with the radial air holes 52. Compressed air enters the annular cavity between the two drive rods from inside the first drive rod 74 through a branch air passage, and is then ejected through the air outlets 78 and radial air holes 52, forming a reverse airflow.

[0032] The anti-blocking coordination component 6 is installed at the lower end of the conveying cylinder 1, and its structure is as follows: Figure 5 As shown. The connecting frame 61 is fixed to the lower flange of the conveying cylinder 1 by bolts. Inside the frame, a third transmission gear 62 and a fourth transmission gear 63 are installed that mesh with each other. The fourth transmission gear 63 is fixed to the end of the first transmission rod 74 by a flat key, converting the rotational motion of the first transmission rod into the horizontal rotational motion of the third transmission gear 62. A connecting rod 64 is welded to the lower end face of the third transmission gear 62. Three sets of stepped unblocking rods 65 are evenly distributed circumferentially at the lower end of the connecting rod 64.

[0033] The unblocking rod 65 is made of round steel with a wavy protrusion on the surface and a tapered end. Three sets of unblocking rods are distributed at a preset spacing in the vertical direction and have a 120° phase difference in the rotation direction. A small eccentricity is set between the rotation axis of the unblocking rod and the central axis of the discharge hopper 8, ensuring that its rotation trajectory covers most of the cross-section of the discharge hopper, effectively eliminating unblocking dead zones.

[0034] The discharge hopper 8 is welded to the lower end of the conveying cylinder 1 and has an inverted conical structure. The lower end of the discharge hopper 8 is connected to the gravity-mechanical hybrid energy-saving conveying assembly 9 through a corrugated pipe connecting sleeve. The corrugated pipe connecting sleeve is made of stainless steel and has annular piezoelectric ceramic vibrating plates embedded in its inner wall. The vibration frequency and amplitude can be adjusted according to the material characteristics.

[0035] The structure of the gravity-mechanical hybrid energy-saving conveying component 9 is as follows: Figure 6 As shown, the conveyor cylinder 91 is made of welded stainless steel and has three layers of spiral slides 93 fixedly installed inside. The height and lead of each spiral slide are designed according to the material characteristics, allowing the material to smoothly and rapidly slide down under the action of gravity. A conveyor belt 94 is installed below the outlet of each spiral slide, and the surface of the conveyor belt is coated with a polyurethane anti-stick layer. The conveyor belt 94 is driven by a second motor 95, which adopts frequency conversion control and can automatically adjust the speed according to the material flow rate.

[0036] The working process of the device in this embodiment is as follows: Resin granules fall from the feed hopper 3 into the conveying cylinder 1. The first motor 76 drives the first transmission rod 74 to rotate, which in turn drives the second transmission rod 77 to rotate in the opposite direction via a gear transmission system. The spiral blades 51 rotate with the second transmission rod 77, propelling the material from the feed end to the discharge end. Simultaneously, compressed air enters the first transmission rod 74 from the air inlet pipe 53 at a preset working pressure, and is ejected in the opposite direction from the radial air holes 52 through a stepped air passage, forming an air film on the surface of the spiral blades to prevent material adhesion and break up any clumps.

[0037] When material enters the discharge hopper 8, the fourth transmission gear 63 at the end of the first transmission rod 74 drives the third transmission gear 62 to rotate, which in turn drives the unblocking rod 65 to rotate eccentrically. The conical structure at the end of the unblocking rod penetrates the material accumulation layer, and the wavy protrusions scrape and agitate the material. Combined with the vibration of the bellows connecting sleeve, this effectively prevents the "bridging" phenomenon in the discharge hopper.

[0038] Material falls from the discharge hopper 8 into the first spiral chute inside the conveyor cylinder 91, where it accelerates downwards under gravity, gaining a stable initial velocity. The conveyor belt 94 at the chute outlet runs at a speed slightly higher than the material's velocity, smoothly conveying the material to the next chute. After relay conveying through three layers of spiral chutes and conveyor belts, the material is finally transported to the downstream reactor inlet.

[0039] Actual production testing showed that the device in this embodiment could run continuously for more than 120 hours without clogging when conveying medium- and high-viscosity epoxy resin particles; the energy consumption per unit conveying capacity was reduced by more than 35% compared with traditional screw conveyors, basically achieving the design expectations.

[0040] The above-described embodiments are merely illustrative of certain implementations of the present invention, and are described in a relatively specific and detailed manner. However, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A feeding device for the production of high-viscosity resin, comprising a feeding cylinder (1), characterized in that: The top of the conveying cylinder (1) is sealed with a cover plate (2) with a feed bin (3), and the bottom is fixedly installed with a support (4). The conveying cylinder (1) is coaxially equipped with a spiral-pneumatic composite conveying assembly (5) and an anti-blocking coordination assembly (6), which are driven by the same set of drive assemblies (7) to achieve linkage transmission. The drive assembly (7) includes a hollow first transmission rod (74), the driven end of the hollow first transmission rod (74) extends into the feed cylinder (1) and is connected to the anti-blocking coordination assembly (6) in a transmission manner, and its internal cavity forms an independent air passage. The spiral-pneumatic composite conveying assembly (5) includes a second transmission rod (77) sleeved outside the first transmission rod (74) and coaxially reversed with it, and a spiral blade (51) is fixed on the second transmission rod (77). The material conveying cylinder (1) is sealed and connected to the discharge bin (8) and the gravity-mechanical hybrid energy-saving conveying assembly (9) in sequence. The gravity-mechanical hybrid energy-saving conveying assembly (9) includes a conveying cylinder (91), a multi-layer spiral slide (93) set in the conveying cylinder (91), and a conveyor belt (94) set at the outlet of each spiral slide.

2. The feeding device for high-viscosity resin production according to claim 1, characterized in that, The driving component (7) includes: The protective housing (71) has a first transmission gear plate (72) and a second transmission gear plate (73) arranged axially back and forth inside it. The hollow first transmission rod (74) is fixed at the center of the second transmission gear plate (73), and the surface of the first transmission rod (74) is provided with equally spaced branch air passage holes. The first transmission gear plate (72) has a second transmission rod (77) fixed at its center. The second transmission rod (77) is rotatably sleeved on the outside of the first transmission rod (74). The two transmission rods are connected by a sealed bearing to achieve coaxial reversal. A first transmission gear (711) and a second transmission gear (712) are provided between the first transmission gear disc (72) and the second transmission gear disc (73) for meshing transmission, wherein: The first transmission gear (711) meshes with both the first transmission gear disc (72) and the second transmission gear (712). The second transmission gear (712) meshes with the second transmission gear disc (73). The gear ratio of the first transmission gear (711) to the second transmission gear (712) is 1.2:1 to 1.5:1; The drive end of the first transmission rod (74) is connected to the output shaft of the first motor (76) via a coupling and is supported by a bearing seat (75). The bearing seat (75) is provided with an air inlet pipe (53) that communicates with the internal cavity of the first transmission rod (74). A rotary sealing joint is provided at the connection between the air inlet pipe (53) and the first transmission rod (74). The second transmission rod (77) has an air outlet (78) on its surface. The diameter of the air outlet (78) is larger than the diameter of the branch air passage hole by 0.5mm-1mm.

3. The feeding device for producing high-viscosity resin according to claim 2, characterized in that, The surface of the spiral blade (51) is provided with 3-5 radial air holes (52); Compressed air enters the internal cavity of the first transmission rod (74) through the air inlet pipe (53), enters the annular gap between the first transmission rod (74) and the second transmission rod (77) through the branch air passage hole, and finally exits from the radial air hole (52) through the air outlet hole (78) on the second transmission rod (77), forming a stepped airflow channel.

4. A feeding device for the production of high-viscosity resin according to claim 3, characterized in that, The air outlet (78) and the radial air outlet (52) together form an airflow channel that is inclined downwards and forms a 15° reverse angle with the material flow direction.

5. A feeding device for producing high-viscosity resin according to claim 3, characterized in that, The pitch of the spiral blade (51) gradually decreases from the feed end to the discharge end, with a change rate of 10%-15%; The radial pores (52) are provided with tungsten carbide coated stainless steel mesh at their openings, with the mesh size being 0.6 to 0.8 times the maximum particle size of the material.

6. A feeding device for the production of high-viscosity resin according to claim 2, characterized in that, The anti-blocking coordination component (6) includes: The connecting frame (61) fixed to the lower end of the conveying cylinder (1) has a horizontal third transmission gear (62) and a vertical fourth transmission gear (63) that mesh with each other. The fourth transmission gear (63) is fixedly connected to the end of the first transmission rod (74) and meshes with the third transmission gear (62) to achieve a transmission steering with an axial angle of 90°. The upper end of the connecting rod (64) is connected to the third transmission gear (62), and the lower end is uniformly fixed with three sets of stepped unblocking rods (65) along the circumference. The surface of the unblocking rod (65) is integrally formed with a wave-shaped protrusion, and the end is processed into a conical structure with a cone angle of 30°-45°. Its rotation trajectory covers more than 85% of the cross-section of the discharge bin (8), and there is an eccentricity of 5mm-8mm between its rotation axis and the central axis of the discharge bin (8).

7. A feeding device for producing high-viscosity resin according to claim 6, characterized in that, The vertical spacing between adjacent unblocking rods (65) is 1 / 4 to 1 / 3 of the height of the discharge bin (8), and the three sets of unblocking rods have a 120° phase difference in the rotation direction.

8. A feeding device for the production of high-viscosity resin according to claim 1, characterized in that, The multi-layer spiral slide (93) has three layers, with a vertical drop of 20cm between adjacent layers; The belt speed of the conveyor belt (94) is 10-15% higher than the material sliding speed at the end of the corresponding slide. The conveyor belt (94) is driven by an independent second motor (95) and its surface is coated with a 2mm thick polyurethane anti-stick layer.

9. A feeding device for the production of high-viscosity resin according to claim 1, characterized in that, The inner wall of the feed cylinder (1) is coated with a nano-ceramic coating with a thickness of 50-80μm; The discharge bin (8) and the conveying cylinder (91) are sealed together by a corrugated pipe connecting sleeve, and the inner wall of the corrugated pipe connecting sleeve is fitted with an annular piezoelectric ceramic vibrating plate.

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