Bio-based plastic product processing device

Abstract

The present invention provides a bio-based plastic product processing device, comprising: a drying drum, wherein the top and bottom of the drying drum are respectively provided with a feed port and a discharge port; a feeding mechanism for replenishing materials into the drying drum; a blowing mechanism arranged at the center of the drying drum and outputting a drying airflow outward; a swinging mechanism for driving the blowing mechanism to swing; a launching mechanism arranged at the bottom of the drying drum and used to bounce materials upward; and a power mechanism that drives the feeding mechanism and the swinging mechanism to work; by arranging a blowing mechanism for annular blowing in conjunction with a feeding mechanism for uniformly dispersing the materials, the pellets are uniformly dried, and by arranging an launching mechanism, the undried pellets are dispersed and dried again, and the materials can be automatically fed in and out, thereby realizing the functions of continuous operation and reduced workload, and solving the problems of heavy workload and low work efficiency of traditional pellet drying equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic processing, and in particular to a bio-based plastic product processing device. Background Art

[0002] Bio-based plastics refer to plastics whose processing raw materials come from renewable resources. They are widely used in the packaging industry. When using injection molding to process bio-based plastics, it is necessary to ensure the dryness of the pellets. If the pellets are damp or insufficiently dried before injection molding, it is easy to cause high melt viscosity, incomplete mold cavity filling, scorching of the product, or melt foaming. In actual production, high-temperature blowers are often used to dry the pellets.

[0003] Chinese patent CN 114734551 A discloses a cross-flow fan blade injection molding pellet drying device. The device comprises a base movably connected to the ground via a lifting mechanism, and a horizontal drying drum disposed above the base. The left end of the drying drum is provided with a sealing cover, and the right end of the drying drum is provided with a drive mechanism for rotating the drying drum and a stirring mechanism inside the drying drum. The drying drum body is provided with a heating sleeve, and the bottom of the heating sleeve is fixed to the top of the base by pillars on both sides. The stirring mechanism includes a rotating shaft, a stirring rod, and a scraper. The left end of the rotating shaft is provided with an opening and rotatably connected to the sealing plate, while the right end of the rotating shaft is closed and connected to the driving mechanism. A plurality of air outlets are evenly distributed on the shaft wall of the rotating shaft, and a blast assembly is provided in the cavity inside the rotating shaft. The present invention overcomes the shortcomings of the prior art, making the injection molding pellets more evenly heated and improving the drying efficiency.

[0004] However, this technical solution still has some problems. The motor drives the drying drum to rotate as a whole. The weight of the drying drum plus the granular material inside it will cause a large load on the motor. In addition, the rotating shaft drives the stirring rod and scraper to disperse all the granular materials in the drying drum, resulting in a large workload of the rotating shaft and the stirring rod, which further increases the workload of the motor and easily aggravates the loss of equipment such as the motor and the stirring rod. At the same time, it also puts higher requirements on the motor, resulting in increased equipment cost and maintenance cost. In addition, the drying drum is a closed structure, and the drying drum needs to be opened, discharged, added and sealed before the next round of granular material drying can be carried out. Uninterrupted continuous operation cannot be achieved, and the work efficiency is low. Summary of the Invention

[0005] The purpose of the present invention is to address the shortcomings of the existing technology and provide a bio-based plastic product processing device. By setting a circumferential blowing blowing mechanism in conjunction with a feeding mechanism for uniformly dispersing the feeding, the pellets are evenly dried. By setting an ejection mechanism, the undried pellets are dispersed and dried again, and the material can be automatically fed in and out, thereby realizing the functions of continuous operation and reduced workload, and solving the problems of heavy workload and low work efficiency of traditional pellet drying equipment.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A bio-based plastic product processing device, comprising:

[0008] A drying drum, wherein the top and bottom of the drying drum are respectively provided with a feed inlet and a discharge outlet;

[0009] A feeding mechanism for evenly replenishing material into the drying drum;

[0010] An air blowing mechanism disposed at the center of the drying drum and outputting a drying air flow outwards;

[0011] An oscillating mechanism for driving the blowing mechanism to oscillate;

[0012] An ejection mechanism provided at the bottom of the drying drum for ejecting the material upwards; and

[0013] A power mechanism that drives the blanking mechanism and the swing mechanism to work;

[0014] The material discharged through the feed port is evenly dispersed and falls on the ring side of the blowing mechanism;

[0015] The discharge port is located outside the ejection mechanism.

[0016] Specifically, the material feeding mechanism transfers the material into the drying drum through the feeding port. As the material falls, the high-temperature airflow ejected by the blowing mechanism dries the material. Since the material falls evenly and dispersedly around the blowing mechanism, the high-temperature airflow can fully contact the material, so that the material is evenly dried. By setting up a swing mechanism, the gas ejected by the initial mechanism swings in the horizontal direction, which can further blow away the material on the inside, and help the airflow to more fully contact the material on the outside, thereby improving the drying effect of the material on the outside.

[0017] After being dried, the dispersed materials are blown to the outermost side by the airflow and fall along the inner wall of the drying drum. After falling, this part of the materials is located outside the ejection mechanism and discharged through the discharge port.

[0018] When the materials are not dried or stick together, the mass of these materials is large, so the distance they move outward after being blown by the airflow is small. These materials fall onto the ejection mechanism, which bounces them upward for further drying. After being bounced, these materials are dispersed, which helps to dry them.

[0019] The high-temperature airflow ejected by the blowing mechanism gathers at the upper end of the drying drum, and the material is discharged through the discharge port at the bottom after being dried. Therefore, the feeding and discharging work can be carried out continuously in the drying drum;

[0020] The device uses the material's own gravity to fall downward, and during the falling process, it comes into contact with the high-temperature airflow to be dispersed and dried, eliminating the trouble of setting up a stirring mechanism with a large workload. It has a simple structure, low operating cost, and can perform continuous drying operations with high work efficiency.

[0021] As a preferred embodiment, the blanking mechanism includes:

[0022] A silo provided on the top of the drying drum for placing materials;

[0023] Rotating a metering disk provided between the silo and the drying drum;

[0024] Storage troughs evenly distributed in the quantitative disk and matching the discharge port, the storage troughs being through-shaped; and

[0025] Feed troughs are evenly distributed at the bottom of the silo and matched with the storage troughs, and the feed troughs are staggered with the feed port.

[0026] Specifically, the quantitative disk is rotatably installed above the drying drum, and the distribution of the storage trough, the discharge trough and the feed port is consistent. In the initial state, the storage trough and the discharge trough in the quantitative disk are aligned vertically and staggered with the feed port. At this time, the top of the drying drum is in a sealed state, which can improve the heat preservation effect in the drying drum; the material in the silo enters the storage trough through the discharge trough, and a certain amount of material is stored in the quantitative disk;

[0027] When adding materials to the drying drum, the quantitative disk is started to rotate so that the storage trough and the discharge trough are staggered and aligned with the feed port, and then the materials in the storage trough fall into the drying drum;

[0028] By setting up a feeding mechanism to deliver a quantitative amount of material into the drying drum, the problem of unstable contact between the material amount and the airflow and the difficulty in controlling the displacement caused by the airflow is avoided, ensuring that the material in the drying drum can be smoothly blown and dried by the blowing mechanism.

[0029] As another preferred embodiment, the blowing mechanism includes:

[0030] Rotating the hollow air guide pipe located at the center of the drying drum; and

[0031] The air outlet holes are evenly distributed around the air guide pipe and are arranged to tilt upward.

[0032] Specifically, the air guide pipe is rotatably installed on the bottom wall or bracket of the drying cylinder, the bottom end of the air guide pipe is movably connected to the air inlet pipe, and a sealing ring is provided at the connection between the two. The air guide pipe is a hollow circular tube, and the air flow in the air guide pipe is evenly ejected obliquely upward along the circumference through the air outlet. Combined with the uniform falling of the material on the circumference of the air guide pipe, the uniformity of the contact between the air flow and the material can be improved. At the same time, the air flow exerts an upward force on the material, slowing down the falling speed of the material, so that the material can be dried for a longer time. There is no need to set up an additional electric drive device to achieve automatic falling transmission of the material and long-term uniform drying effect. It has a simple structure, is easy to use, and has low cost.

[0033] As a preferred embodiment, the swing mechanism includes:

[0034] a support member provided at the bottom of the air guide tube;

[0035] a follower provided on the support member;

[0036] a first gear and a second gear meshing with each other;

[0037] The lever assemblies are respectively arranged on the first gear and the second gear. After the first gear and the second gear rotate, the air guide tube is driven to rotate in sequence through the cooperation between the lever assemblies and the follower, and there is a gap between the transmission of the two groups of the lever assemblies and the follower.

[0038] Specifically, the support member is a circular plate, the driven member is a tooth group concentrically distributed on the bottom of the support member, the first gear and the second gear are rotatably mounted on the bracket, and the shift lever assembly is a round rod group concentrically distributed on the first gear and the second gear respectively, and the distribution range of a single round rod group is smaller than a semicircle;

[0039] During the synchronous counter-rotation of the first gear and the second gear, the two groups of lever assemblies contact and mesh with the driven member in turn and drive the support member to rotate back and forth, so that the support member and the air guide tube swing back and forth, and the swinging airflow has a better effect on blowing away the material. By setting the two groups of lever assemblies, the air guide tube will stay for a moment after rotating and then rotate, thereby improving the overall smoothness of the back-and-forth swing of the airflow ejected from the air guide tube, so that the material is dispersed more evenly under the blowing of smooth airflow, avoiding the problem that the air guide tube rotates immediately after rotation, and the airflow direction changes drastically, resulting in uneven dispersion of the material, thereby ensuring the drying effect.

[0040] As another preferred embodiment, it also includes:

[0041] A material collecting member provided on the bottom wall of the drying drum; and

[0042] A material collecting trough is provided inside the material collecting member, and the material collecting trough surrounds the annular side of the air guide pipe;

[0043] The discharge port is located outside the material collecting member;

[0044] The ejection mechanism is arranged in the aggregate trough.

[0045] Specifically, the aggregate piece and the aggregate trough are both annular structures. After drying, the light material is blown to the outside of the aggregate piece. The bottom wall of the drying cylinder and the outside of the aggregate trough are provided with a slope so that the material outside the aggregate piece can slide to the discharge port; the undried heavy material falls into the aggregate trough, and the dried and undried materials are separated by setting the aggregate piece; the bottom of the aggregate trough is provided with a straight-sided groove that cooperates with the aggregate piece. The aggregate piece always seals the straight-sided groove in the aggregate trough during the up and down movement to prevent the material from falling under the aggregate piece.

[0046] As a preferred embodiment, the ejection mechanism includes:

[0047] A receiving plate movably arranged inside the collecting trough for receiving materials;

[0048] An elastic member provided at the bottom of the collecting trough for supporting the receiving plate;

[0049] a load-bearing plate provided on the elastic member; and

[0050] An extrusion member is provided on the support member and drives the elastic member to store energy by extruding the force-bearing plate.

[0051] Specifically, when materials with larger mass fall onto the receiving plate, the receiving plate can slide up and down in the collecting trough. A limit block is provided in the collecting member to limit the receiving plate to prevent the receiving plate from sliding out of the collecting trough; the elastic member is preferably but not limited to a support rod installed with a spring; during the rotation of the support member, the force-bearing plate and the support rod are squeezed downward by the extrusion member, so that the spring is compressed and energy is stored; after the extrusion member is separated from the force-bearing plate, the support rod moves upward quickly under the push of the spring, and the logistics on the receiving plate is bounced upward, realizing the function of automatically driving the ejection mechanism to bounce the material upward as the air guide tube swings, with a simple structure and low cost of use.

[0052] As another preferred embodiment, the extrusion piece is provided with a double-sided slope, and the extrusion piece and the force-bearing plate are circumferentially staggered.

[0053] Specifically, by providing a double-sided slope, the support member can rotate back and forth, and after the extrusion member contacts the force-bearing plate, the force-bearing plate can be squeezed downward more smoothly.

[0054] As a preferred embodiment, the protruding rods are evenly distributed around the circumference of the quantitative disk;

[0055] a dial plate provided at the top end of the drive shaft and driving the quantitative disc to rotate by cooperating with the convex rod; and

[0056] A transmission member, wherein the drive shaft drives one of the first gear and the second gear to rotate through the transmission member.

[0057] Specifically, the drive shaft is rotatably installed on the bracket, and the drive shaft is driven to rotate by a motor or other devices; the transmission member is preferably a chain belt; after the drive shaft rotates, the cam is intermittently driven to rotate through the dial plate, and then the metering disk is driven to rotate intermittently, realizing the function of regular unloading. In addition, a gear transmission mechanism can be added according to specific circumstances to adjust the unloading cycle of the metering disk; the drive shaft simultaneously drives one of the first gear and the second gear to rotate through the chain belt, and then drives the support member and the air guide tube to swing back and forth; since the support member automatically squeezes the force-bearing member and the elastic member after rotation, the device can drive the unloading mechanism, the swing mechanism and the ejection mechanism to work at the same time by setting a single drive shaft. The structure is simple, eliminating the trouble of setting up multiple sets of electric drive devices, reducing the cost of use, and there is no need to stir all the materials. Only part of the material remains in the metering disk, reducing the workload of the drive shaft.

[0058] As another preferred embodiment, the drying drum further comprises a sealing member movably provided at the bottom of the drying drum for sealing the discharge port, wherein the sealing member is provided with a through groove corresponding to the discharge port.

[0059] Specifically, the seal is preferably an annular structure with an external protruding rod, which is rotatably mounted on the bottom of the drying cylinder or rotatably mounted on the bracket, and the seal is located between the discharge port and the discharge pipe; when the through groove is staggered with the discharge port, the discharge port is blocked to improve the sealing and heat preservation effect of the drying cylinder; when the seal is rotated until the through groove is aligned with the discharge port, the dried material falls into the discharge pipe through the discharge port and the through groove.

[0060] As a preferred embodiment, the power mechanism further includes:

[0061] a reset member provided on the sealing member; and

[0062] A cam is provided on the driving shaft for driving the sealing member to rotate, and the cam is in a fan shape.

[0063] Specifically, the reset member is preferably a spring. In the initial state, the seal maintains a stable position under the action of the spring and seals the discharge port; after the drive shaft rotates, the seal is driven to rotate by the fan-shaped cam, so that the through groove is aligned with one end of the discharge port to complete the discharge of the dried material.

[0064] The beneficial effects of the present invention are:

[0065] (1) The present invention evenly disperses the material on the outside of the air duct by setting a material discharge mechanism. The high-temperature airflow ejected upward from the periphery of the air duct contacts the material evenly. The device uses the material's own gravity to fall downward. During the falling process, the material contacts the high-temperature airflow to be dispersed and dried. At the same time, the airflow exerts an upward force on the material, slowing down the falling speed of the material, so that the material can be dried for a longer time. There is no need to set up an additional power transmission device and stirring device, and the material can be automatically dropped and transmitted and dried evenly for a long time. The structure is simple, easy to use, low cost, and can be dried continuously with high work efficiency.

[0066] (2) The present invention provides a quantitative plate and a seal to perform feeding and discharging respectively during continuous drying operation, and seals the top and bottom ends of the drying cylinder during the drying process, thereby improving the sealing and heat preservation effect inside the cylinder, helping to quickly dry the material, and having good adaptability to continuous operation.

[0067] (3) The present invention provides a swing mechanism to make the high-temperature air flow swing back and forth, which has a better effect on blowing away the material. The air guide tube will stay for a while after rotating and then rotate back, thereby improving the overall smoothness of the back-and-forth swing of the air flow ejected from the air guide tube. It avoids the problem that the air guide tube rotates immediately after rotating, and the air flow direction changes drastically, resulting in uneven dispersion of the material, thereby ensuring the drying effect.

[0068] (4) The present invention separates the dried and undried materials by providing a collection piece. The ejection mechanism in the collection piece ejects the undried materials upwards, and disperses and dries them again, thereby improving the drying effect.

[0069] (5) The present invention can simultaneously drive the unloading mechanism, the swing mechanism, the ejection mechanism and the sealing member to work by setting a single drive shaft. The structure is simple, and the trouble of setting up multiple sets of electric drive devices is eliminated, thereby reducing the cost of use. When the device is working, it is not necessary to stir all the materials, and only part of the materials are left in the quantitative disk, thereby reducing the workload of the drive shaft.

[0070] In summary, the present invention has the advantages of uniformly dispersing and drying materials and automatically conveying them, separating and re-drying undried materials, working continuously, having high working efficiency, and having low workload and use cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0071] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0072] Figure 2 It is a half-cut perspective view of the present invention;

[0073] Figure 3 Exploded diagram of the blanking mechanism and the swing mechanism of the present invention;

[0074] Figure 4 Exploded view of the blowing mechanism and ejection mechanism of the present invention;

[0075] Figure 5 This is a bottom perspective view of the drying drum of the present invention. DETAILED DESCRIPTION

[0076] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0077] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0078] Example 1

[0079] like Figure 1-2 As shown, this embodiment provides a bio-based plastic product processing device, comprising:

[0080] A drying drum 1, wherein the top and bottom of the drying drum 1 are respectively provided with a feed inlet 11 and a discharge outlet 12;

[0081] A feeding mechanism 2 for evenly replenishing material into the drying drum 1;

[0082] An air blowing mechanism 3 is provided at the center of the drying drum 1 and outputs a drying air flow outward;

[0083] an oscillating mechanism 4 for driving the blowing mechanism 3 to oscillate;

[0084] An ejection mechanism 5 provided at the bottom of the drying drum 1 for ejecting the material upwards; and

[0085] A power mechanism 6 that drives the blanking mechanism 2 and the swing mechanism 4 to work;

[0086] The material discharged through the feed port 11 is evenly dispersed and falls on the ring side of the blowing mechanism 3;

[0087] The discharge port 12 is located outside the ejection mechanism 5 .

[0088] Specifically, the drying drum 1 is provided on the bracket 100, the blowing mechanism 3 is provided with an air inlet pipe 200 connected to an external high-temperature blower, the bracket 100 is provided with a discharge pipe 300 connected to the discharge port 12, and the unloading mechanism 2 is connected to the feed port 11;

[0089] The material discharge mechanism 2 transfers the material into the drying drum 1 through the material feed port 11. As the material falls, the high-temperature airflow ejected by the blowing mechanism 3 dries the material. Since the material falls evenly and dispersedly around the blowing mechanism 3, the high-temperature airflow can fully contact the material, so that the material is evenly dried. By providing the swing mechanism 4, the gas ejected by the initial mechanism swings in the horizontal direction, which can further disperse the material on the inside, and help the airflow to more fully contact the material on the outside, thereby improving the drying effect of the material on the outside.

[0090] After being dried, the dispersed materials are blown to the outermost side by the air flow and fall along the inner wall of the drying drum 1. After falling, this part of the materials is located outside the ejection mechanism 5 and discharged through the discharge port 12.

[0091] When the materials are not dried or stick together, the mass of these materials is large, and the distance they move outward after being blown by the airflow is small. These materials fall onto the ejection mechanism 5, which ejects them upward for further drying. Moreover, these materials are dispersed after being ejected, which helps to dry them.

[0092] The high-temperature airflow ejected by the blowing mechanism 3 gathers at the upper end of the drying drum 1, and the material is discharged through the discharge port 12 at the bottom after being dried. Therefore, the feeding and discharging operations can be continuously carried out in the drying drum 1;

[0093] The device uses the material's own gravity to fall downward, and during the falling process, it comes into contact with the high-temperature airflow to be dispersed and dried, eliminating the trouble of setting up a stirring mechanism with a large workload. It has a simple structure, low operating cost, and can perform continuous drying operations with high work efficiency.

[0094] like Figure 2-3 As shown, further, the blanking mechanism 2 includes:

[0095] A silo 21 for placing materials is provided on the top of the drying drum 1;

[0096] Rotate the metering plate 22 provided between the silo 21 and the drying drum 1;

[0097] Storage troughs 23 evenly distributed in the quantitative disk 22 and matching the discharge port 12, the storage troughs 23 being through-shaped; and

[0098] The feed troughs 24 are evenly distributed at the bottom of the silo 21 and matched with the storage troughs 23 . The feed troughs 24 are staggered with the feed port 11 .

[0099] Specifically, the quantitative disk 22 is rotatably mounted above the drying drum 1, and the distribution of the storage trough 23, the discharge trough 24, and the feed port 11 is consistent. In the initial state, the storage trough 23 and the discharge trough 24 in the quantitative disk 22 are aligned vertically and staggered with the feed port 11. At this time, the top of the drying drum 1 is in a sealed state, which can improve the heat preservation effect in the drying drum 1; the material in the silo 21 enters the storage trough 23 through the discharge trough 24, and a certain amount of material is stored in the quantitative disk 22;

[0100] When replenishing the material to the drying drum 1, the quantitative disk 22 is started to rotate so that the storage trough 23 and the discharge trough 24 are staggered and aligned with the feed port 11, and then the material in the storage trough 23 falls into the drying drum 1;

[0101] By setting up a feeding mechanism 2 to deliver a quantitative amount of material into the drying drum 1, the problem of unstable contact between the material amount and the airflow and the difficulty in controlling the displacement caused by the airflow is avoided, ensuring that the material in the drying drum 1 can be smoothly blown and dried by the blowing mechanism 3.

[0102] like Figure 4 As shown, further, the blowing mechanism 3 includes:

[0103] Rotating the hollow air guide tube 31 provided at the center of the drying drum 1; and

[0104] The air outlet holes 32 are evenly distributed around the air guide pipe 31 and are arranged to tilt upward.

[0105] Specifically, the air guide pipe 31 is rotatably mounted on the bottom wall or bracket 100 of the drying drum 1, the bottom end of the air guide pipe 31 is movably connected to the air inlet pipe 200, and a sealing ring is provided at the connection between the two. The air guide pipe 31 is a hollow circular tube, and the air flow in the air guide pipe 31 is evenly ejected obliquely upward along the circumference through the air outlet 32. Combined with the uniform falling of the material on the circumference of the air guide pipe 31, the uniformity of the contact between the air flow and the material can be improved. At the same time, the air flow exerts an upward force on the material, slowing down the falling speed of the material, so that the material can be dried for a longer time. Without the need for an additional electric drive device, the automatic falling transmission of the material and the long-term uniform drying effect of the material can be achieved. The structure is simple, easy to use and the use cost is low.

[0106] like Figure 2-3 As shown, further, the swing mechanism 4 includes:

[0107] A support member 41 provided at the bottom of the air guide tube 31;

[0108] A follower 42 provided on the support member 41;

[0109] A first gear 43 and a second gear 44 meshing with each other;

[0110] The lever assembly 45 is respectively provided on the first gear 43 and the second gear 44. After the first gear 43 and the second gear 44 rotate, the air guide tube 31 is driven to rotate in turn through the cooperation of the lever assembly 45 and the follower 42, and there is a gap between the transmission of the two groups of the lever assembly 45 and the follower 42.

[0111] Specifically, the support member 41 is a circular plate, the driven member 42 is a tooth group concentrically arranged at the bottom of the support member 41, the first gear 43 and the second gear 44 are rotatably mounted on the bracket 100, and the shift lever assembly 45 is a rod group concentrically arranged on the first gear 43 and the second gear 44, respectively. The distribution range of a single rod group is smaller than a semicircle.

[0112] During the synchronous counter-rotation of the first gear 43 and the second gear 44, the two groups of lever assemblies 45 contact and mesh with the driven member 42 in turn and drive the support member 41 to rotate back and forth, thereby causing the support member 41 and the air duct 31 to swing back and forth. By setting the two groups of lever assemblies, the air duct 31 will stay for a moment after rotating and then rotate, thereby improving the overall smoothness of the back-and-forth swing of the airflow ejected from the air duct 31, so that the material is dispersed more evenly under the blowing of smooth airflow, avoiding the problem that the air duct 31 rotates immediately after rotating, and the air flow direction changes drastically, resulting in uneven dispersion of the material, thereby ensuring the drying effect.

[0113] like Figure 4 As shown, further, it also includes:

[0114] A material collecting member 7 provided on the bottom wall of the drying drum 1; and

[0115] A material collecting trough 8 is provided inside the material collecting member 7, and the material collecting trough 8 surrounds the annular side of the air guide pipe 31;

[0116] The discharge port 12 is located outside the collecting member 7;

[0117] The ejection mechanism 5 is arranged in the aggregate trough 8 .

[0118] Specifically, the aggregate piece 7 and the aggregate trough 8 are both annular structures. After drying, the light material is blown to the outside of the aggregate piece 7. The bottom wall of the drying cylinder 1 and the outside of the aggregate trough 8 are provided with a slope so that the material outside the aggregate piece 7 can slide to the discharge port 12; the undried heavy material falls into the aggregate trough 8, and the dried and undried materials are separated by setting the aggregate piece 7; the bottom of the aggregate trough 8 is provided with a straight-sided groove that cooperates with the aggregate piece 7. During the up and down movement of the aggregate piece 7, the straight-sided groove in the aggregate trough 8 is always sealed to prevent the material from falling under the aggregate piece 7.

[0119] like Figure 2-4 As shown, further, the ejection mechanism 5 includes:

[0120] A receiving plate 51 movably provided inside the collecting trough 8 for receiving materials;

[0121] An elastic member 52 provided at the bottom of the collecting trough 8 for supporting the receiving plate 51;

[0122] a force-bearing plate 53 provided on the elastic member 52; and

[0123] An extrusion member 54 is provided on the support member 41 and drives the elastic member 52 to store energy by extruding the force-bearing plate 53 .

[0124] Specifically, materials with larger mass fall onto the receiving plate 51, and the receiving plate 51 can slide up and down in the collecting trough 8. A limit block is provided in the collecting member 7 to limit the receiving plate 51 to prevent the receiving plate 51 from sliding out of the collecting trough 8; the elastic member 52 is preferably but not limited to a support rod installed with a spring; during the rotation of the support member 41, the force-bearing plate 53 and the support rod are squeezed downward by the extrusion member 54, so that the spring is compressed and energy is stored; after the extrusion member 54 is separated from the force-bearing plate 53, the support rod moves upward quickly under the push of the spring, and the logistics on the receiving plate 51 is bounced upward, realizing the function of automatically driving the ejection mechanism 5 to bounce the material upward as the air guide tube 31 swings, with a simple structure and low cost of use.

[0125] like Figure 4 As shown, further, the extrusion member 54 is provided with a double-sided slope, and the extrusion member 54 and the force-bearing plate 53 are staggered in the circumferential direction.

[0126] Specifically, by providing a double-sided slope, the support member 41 can rotate back and forth, and the extrusion member 54 can more smoothly press the force-bearing plate 53 to move downward after contacting the force-bearing plate 53 .

[0127] Example 2

[0128] like Figure 2-3As shown, the components identical or corresponding to those in the first embodiment are designated by the corresponding reference numerals in the first embodiment. For simplicity, only the differences from the first embodiment are described below. The second embodiment differs from the first embodiment in that:

[0129] In this embodiment, the power mechanism 6 includes:

[0130] Drive shaft 61;

[0131] Protruding rods 62 are evenly distributed around the side of the quantitative disk 22;

[0132] A dial plate 63 provided at the top end of the drive shaft 61 drives the quantitative disc 22 to rotate by cooperating with the protruding rod 62; and

[0133] The driving shaft 61 drives one of the first gear 43 and the second gear 44 to rotate through the transmission member 64 .

[0134] Specifically, the drive shaft 61 is rotatably mounted on the bracket 100, and the drive shaft 61 is driven to rotate by a motor or other device; the transmission member 64 is preferably a chain belt; after the drive shaft 61 rotates, the cam 62 is intermittently driven to rotate through the dial plate 63, and then the quantitative disk 22 is driven to rotate intermittently, realizing the function of regular unloading. In addition, a gear transmission mechanism can be added according to specific circumstances to adjust the unloading cycle of the quantitative disk 22; the drive shaft 61 simultaneously drives one of the first gear 43 and the second gear 44 to rotate through the chain belt, and then drives the support member 41 and the air guide tube 31 to swing back and forth; since the support member 41 automatically squeezes the force-bearing member and the elastic member 52 after rotation, the device can drive the unloading mechanism 2, the swing mechanism 4 and the ejection mechanism 5 to work at the same time by setting a single drive shaft 61, which has a simple structure, eliminates the trouble of setting up multiple sets of electric drive devices, reduces the cost of use, and does not need to stir all the materials. Only part of the material remains in the quantitative disk 22, reducing the workload of the drive shaft 61.

[0135] like Figure 3 As shown, further, it includes a sealing member 9 movably provided at the bottom of the drying drum 1 for sealing the discharge port 12 , and a through groove 91 corresponding to the discharge port 12 is opened on the sealing member 9 .

[0136] Specifically, the seal 9 is preferably an annular structure with an external protruding rod, which is rotatably mounted on the bottom of the drying cylinder 1 or rotatably mounted on the bracket 100, and the seal 9 is located between the discharge port 12 and the discharge pipe 300; when the through groove 91 is staggered with the discharge port 12, the discharge port 12 is blocked to improve the sealing and heat preservation effect of the drying cylinder 1; when the seal 9 is rotated until the through groove 91 is aligned with the discharge port 12, the dried material falls into the discharge pipe 300 through the discharge port 12 and the through groove 91.

[0137] like Figure 3 As shown, further, the power mechanism 6 also includes:

[0138] a reset member 65 provided on the sealing member 9; and

[0139] A cam 66 is provided on the driving shaft 61 for driving the sealing member 9 to rotate. The cam 66 is in a fan shape.

[0140] Specifically, the reset member 65 is preferably a spring. In the initial state, the seal 9 maintains a stable position under the action of the spring and seals the discharge port 12; after the drive shaft 61 rotates, the seal 9 is driven to rotate by the fan-shaped cam 66, so that the through groove 91 is aligned with one end of the discharge port 12, so as to complete the discharge of the dried material.

[0141] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bio-based plastic product processing device, characterized in that: include: A drying drum, wherein the top and bottom of the drying drum are respectively provided with a feed inlet and a discharge outlet; A feeding mechanism for evenly replenishing material into the drying drum; An air blowing mechanism disposed at the center of the drying drum and outputting a drying air flow outwards; An oscillating mechanism for driving the blowing mechanism to oscillate; An ejection mechanism provided at the bottom of the drying drum for ejecting the material upwards; and A power mechanism that drives the blanking mechanism and the swing mechanism to work; The material discharged through the feed port is evenly dispersed and falls on the ring side of the blowing mechanism; The discharge port is located outside the ejection mechanism; The blanking mechanism comprises: A silo provided on the top of the drying drum for placing materials; Rotating a metering disk provided between the silo and the drying drum; Storage troughs evenly distributed in the quantitative disk and matching the discharge port, the storage troughs being through-shaped; and Feed troughs are evenly distributed at the bottom of the silo and matched with the storage troughs, and the feed troughs are staggered with the feed inlet; The blowing mechanism comprises: Rotating the hollow air guide pipe located at the center of the drying drum; and Air outlet holes evenly distributed around the air guide pipe and arranged to tilt upward; The swing mechanism comprises: a support member provided at the bottom of the air guide tube; a follower provided on the support member; a first gear and a second gear meshing with each other; The lever assemblies are respectively arranged on the first gear and the second gear. After the first gear and the second gear rotate, the air guide tube is driven to rotate in sequence through the cooperation between the lever assemblies and the follower, and there is a gap between the transmission of the two groups of the lever assemblies and the follower.

2. The bio-based plastic product processing device according to claim 1, characterized in that: Also includes: A material collecting member provided on the bottom wall of the drying drum; and A material collecting trough is provided inside the material collecting member, and the material collecting trough surrounds the annular side of the air guide pipe; The discharge port is located outside the material collecting member; The ejection mechanism is arranged in the aggregate trough.

3. The bio-based plastic product processing device according to claim 2, characterized in that: The ejection mechanism comprises: A receiving plate movably arranged inside the collecting trough for receiving materials; An elastic member provided at the bottom of the collecting trough for supporting the receiving plate; a load-bearing plate provided on the elastic member; and An extrusion member is provided on the support member and drives the elastic member to store energy by extruding the force-bearing plate.

4. The bio-based plastic product processing device according to claim 3, characterized in that: The extrusion piece is provided with a double-sided slope, and the extrusion piece and the force-bearing plate are staggered in the circumferential direction.

5. The bio-based plastic product processing device according to claim 1, characterized in that: The power mechanism comprises: drive shaft; Protruding rods evenly distributed around the periphery of the quantitative disk; a dial plate provided at the top end of the drive shaft and driving the quantitative disc to rotate by cooperating with the convex rod; and A transmission member, wherein the drive shaft drives one of the first gear and the second gear to rotate through the transmission member.

6. The bio-based plastic product processing device according to claim 5, characterized in that: It also includes a sealing member movably arranged at the bottom of the drying cylinder for sealing the discharge port, and the sealing member is provided with a through groove corresponding to the discharge port.

7. The bio-based plastic product processing device according to claim 6, characterized in that: The power mechanism further comprises: a reset member provided on the sealing member; and A cam is provided on the driving shaft for driving the sealing member to rotate, and the cam is in a fan shape.

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