Granulation equipment for bio-based degradable material

Abstract

The invention provides granulation equipment for a bio-based degradable material. The granulation equipment comprises a granulation device and a cooling device, and the granulation device is used for cutting a strip-shaped material into granules; the cooling device is used for blowing out cold air; the pelletizing device comprises a second support, an outer cover, a distance adjusting assembly, a rotating motor and a cutter assembly, and the second support plays a supporting role; the outer cover is arranged on the second support, and the distance adjusting assembly is arranged on the second support. The rotating motor is arranged on the distance adjusting assembly, and the output end of the rotating motor extends into the outer cover. According to the granulation equipment, the distance between the cutter assembly and the feeding opening is adjusted through the rotating motor, so that accurate control over different particle sizes is achieved, the problems that in the prior art, equipment adaptability is poor and the like are solved, meanwhile, the cooling device is arranged to be used for cooling incoming materials, and the production efficiency is improved. And the problems of non-uniform particle size of the cut material, incomplete cutting, low production efficiency and the like caused by insufficient hardness of the material are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of granulation equipment, in particular to granulation equipment for bio-based degradable materials. Background Art

[0002] Bio-based materials refer to materials produced from renewable biomass (including the contents and residues of crops, trees, and other plants and animals) through biological, chemical, and physical means. Bio-based materials refer to a new class of materials manufactured from renewable biomass, including grains, legumes, straw, bamboo and wood flour, and animal fur waste, through biological, chemical, and physical means. These new materials primarily include bioplastics, bio-based platform compounds, biomass functional polymers, functional sugar products, wood-based engineering materials, and leather-based service materials. They are green, environmentally friendly, made from renewable raw materials, and are biodegradable.

[0003] Existing pelletizing systems are made by mixing bio-based materials with plastics and then using a pelletizer to cut the material into small particles. These pelletizers typically use a high-speed rotating blade to cut the material into small particles in relative motion with a feed port. However, because the distance between the blade and the feed port is typically fixed, it cannot be flexibly adjusted to suit the characteristics and cutting requirements of different materials. This can lead to uneven particle size, incomplete cutting, and poor adaptability in actual production.

[0004] In view of this, the inventors specially designed a granulation device for bio-based degradable materials, which resulted in this case. Summary of the Invention

[0005] The present invention aims to address at least one of the technical problems existing in the prior art. To this end, the present invention proposes a granulation device for biodegradable materials. This device uses a rotating motor to adjust the distance between the cutter assembly and the feed inlet to achieve precise control of different particle sizes. A cooling device is also provided to cool the incoming material. This overcomes existing issues such as poor adaptability of the device, as well as issues such as uneven particle size and incomplete cutting due to insufficient material hardness, as well as low production efficiency.

[0006] According to the present invention, a granulation device for biodegradable materials includes: Pelletizing device, used to cut strip materials into granules; A cooling device, the cooling device being used to blow out cold air; The pelletizing device comprises: a second bracket, the second bracket playing a supporting role; An outer cover, the outer cover is provided on the second bracket and is hollow inside, and the outer cover has an inlet port communicating with the interior thereof and used to communicate with the first discharge port, and a second discharge port communicating with the interior thereof; a distance-adjusting assembly, wherein the distance-adjusting assembly is arranged on the second bracket; A rotating motor, wherein the rotating motor is arranged on the pitch adjustment assembly and an output end of the rotating motor extends into the interior of the outer cover; a tool assembly, the tool assembly being located in the outer cover and connected to the output end of the rotating motor; A plurality of extrusion channels are provided at the material inlet, and the materials mixed by the mixing device are formed into strips after passing through the extrusion channels; the rotary motor drives the tool assembly to rotate to cut the materials entering the material inlet into granules; the distance adjustment assembly drives the rotating electrode and the tool assembly to move so that the tool assembly moves away from or close to the tool assembly, and the cold air generated by the cooling device is connected to the outer cover through the air outlet pipe.

[0007] The granulation equipment of the present invention adjusts the distance between the tool assembly and the feed port by a rotating motor to achieve precise control of different particle sizes, thereby solving the problem of poor adaptability of the equipment in the prior art. At the same time, a cooling device is provided for cooling the incoming material, thereby avoiding problems such as uneven particle size of the cut material due to insufficient material hardness, incomplete cutting, and low production efficiency.

[0008] In some embodiments of the present invention, the granulation device further comprises: A mixing device for mixing and extruding a plastic material and a bio-based material, the mixing device having a first feed port, a second feed port, and a first discharge port; a first blanking device, connected to the first feed port and used for heating the plastic; a second feeding device, connected to the second feeding port, for mixing bio-based materials; The pelletizing device is connected to the first discharge device and is used to pelletize the material extruded by the mixing device.

[0009] Specifically, the first and second feed inlets are located above the mixing device, the first discharge port is located on the side wall of the mixing device near the bottom, the first discharge device is located side by side with the mixing device, and the second discharge device is located below the mixing device. The pelletizing device is located side by side with the mixing device. The first and second feed inlets can be provided as feed hoppers, or only the first feed inlet can be provided, with the first and second discharge devices sharing the same first feed inlet.

[0010] In some embodiments of the present invention, the mixing device adopts an internal mixer or a kneader, which is used to mix the plastic and the bio-based material and extrude them into the pelletizing device; the first feeding device adopts an extruder, which heats and extrudes the plastic material and connects its extrusion port to the first feed port.

[0011] In some embodiments of the present invention, the second blanking device includes: A first bracket, wherein a first workbench is provided below the first bracket, and a first material discharge port is provided on the first workbench, and the first material discharge port is provided corresponding to the second material feed port; A mixing drum, the mixing drum is arranged on the first bracket and is located above the first workbench, and a discharging end is arranged below the mixing drum; A driving device, wherein the driving device is arranged above the mixing drum and an output end thereof faces the inner side of the mixing drum; A stirring device, the stirring device is located inside the stirring cylinder and connected to the stirring device output end; The conveying device is arranged above the mixing drum to convey the material into the mixing drum.

[0012] The present invention's mixing and discharging device for biodegradable materials utilizes a conveying device to transport the material. Once the material is transported into the mixing drum, a driving device drives the stirring device to evenly mix the material before it enters the next process, significantly improving the uniformity of the material. Furthermore, the second discharging device utilizes a modular structure, facilitating installation and disassembly for maintenance.

[0013] In some embodiments of the present invention, the first bracket further includes a first column disposed on the first workbench, and at least three first columns are provided.

[0014] In some embodiments of the present invention, the driving device uses a motor and a turbine reducer to drive the stirring device to rotate in the stirring barrel.

[0015] In some embodiments of the present invention, the conveying device adopts a vacuum conveying device, which includes a conveying barrel, a connecting cylinder arranged below the conveying barrel, and a connecting bucket arranged below the connecting cylinder. The top of the connecting cylinder is connected to the bottom of the conveying barrel by a clamp, and the conveying barrel is provided with at least one feeding port.

[0016] In some embodiments of the present invention, the mixing drum body includes a mixing tank and a mixing cover arranged at the opening of the mixing tank, and the driving device and the conveying device are arranged on the upper end surface of the mixing cover; a discharge barrel connected to the interior of the mixing tank is also provided below the mixing tank, and a cloth cover with openings at both ends is provided on the outer side of the lower side of the discharge barrel, and the upper side of the cloth cover is provided on the outer side wall of the lower side of the discharge barrel, and the lower side is placed in the first discharge port.

[0017] In some embodiments of the present invention, an annular step is provided above the first workbench and at the first discharge port, an annular magnet is provided or embedded on the outer wall / inner wall of the annular step, and a plurality of arc-shaped metal sheets are provided on the outer side of the cloth sleeve corresponding to the annular magnet.

[0018] In some embodiments of the present invention, the stirring device includes a first rotating shaft and a plurality of first rotating blades arranged on an outer side wall of the rotating shaft, and the plurality of first rotating blades are located at different heights.

[0019] In some embodiments of the present invention, the first rotating blade includes a first horizontal portion perpendicular to the outer side wall of the first rotating shaft, a first vertical portion whose upper end is connected to the first horizontal portion and perpendicular to the first horizontal portion, and a first inclined portion for connecting the lower side of the first vertical portion to the outer side wall of the first rotating shaft and being inclined.

[0020] In some embodiments of the present invention, the second bracket includes a plurality of second columns and a second workbench disposed on the second columns.

[0021] In some embodiments of the present invention, the pitch adjusting assembly includes a pitch adjusting motor arranged on a second bracket, a pitch adjusting screw arranged at the output end of the pitch adjusting motor, a pitch adjusting nut sleeved on the pitch adjusting screw, and a support plate arranged on the pitch adjusting nut; the rotating motor is arranged on the support plate.

[0022] The distance adjustment assembly is used to adjust the distance between the tool assembly and the material inlet, allowing the length of the material cut by the tool assembly to be adjustable and can be adjusted according to actual needs. Specifically, the distance adjustment motor is mounted on the second workbench via a motor support, and two slide rails are arranged side by side on the second workbench. The ends of the distance adjustment screw are mounted on the second workbench using screw support seats. The distance adjustment motor drives the distance adjustment screw to rotate, which in turn drives the distance adjustment nut to move, thereby driving the support plate to move, so that the tool assembly and the rotating motor located on the support plate are moved away from or closer to the material inlet.

[0023] In some embodiments of the present invention, in order to enhance the cooling of the material, a cold air inlet is opened above the outer cover.

[0024] In some embodiments of the present invention, the tool assembly includes a second rotating shaft and a plurality of blades disposed on the second rotating shaft, the second rotating shaft is connected to an output end of the rotary motor, and the tool is located inside the outer cover.

[0025] In some embodiments of the present invention, in order to facilitate operators to observe the pelletizing status in real time, an observation port is provided on one end surface of the outer cover, and an acrylic plate is fixedly mounted on the surface of the observation port.

[0026] In some embodiments of the present invention, a screen is clamped on the second discharge port.

[0027] In some embodiments of the present invention, the cooling device comprises: A box body, wherein an air outlet pipe is provided on the box body for connecting to a pelletizing device; A cooling assembly is provided at one end of the inner side of the box body; The fan assembly is arranged on the box body and is used to introduce the cold air generated by the cooling assembly into the pelletizing device through the air outlet pipe.

[0028] In some embodiments of the present invention, the fan assembly includes fan blades and a protective frame.

[0029] In some embodiments of the present invention, the fan assembly is conductive through a power cord, and a cable management groove and a reversing groove that are perpendicular to and connected to each other are provided on the outside of the box body, wherein the cable management grooves are provided in a plurality of horizontally arranged lines, and the reversing grooves are provided in a vertically arranged line, and at least one line is provided to separate any cable management groove into at least two sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0031] in: Figure 1 It is an overall schematic diagram of the granulation equipment of the present invention; Figure 2 It is a schematic structural diagram of a cutting device and a cooling device in the granulation equipment of the present invention; Figure 3 This is a schematic diagram of the structure of the second blanking device of the present invention Figure 1 ; Figure 4 This is a schematic diagram of the structure of the second blanking device of the present invention Figure 2 ; Figure 5 It is a partial exploded view of the second blanking device of the present invention; Figure 6 This invention Figure 5 Local magnification Figure 1 ; Figure 7 This invention Figure 5 Local magnification Figure 2 ; Figure 8 This is a schematic diagram of the structure of the stirring device of the present invention Figure 1 ; Figure 9 This is a schematic diagram of the structure of the stirring device of the present invention Figure 2 ; Figure 10 This is a schematic diagram of the structure of the pelletizing device of the present invention Figure 1 ; Figure 11 This is a schematic diagram of the structure of the pelletizing device of the present invention Figure 2 ; Figure 12 It is a partial schematic diagram of the pelletizing device of the present invention; Figure 13 This is a schematic diagram of the structure of the pelletizing device of the present invention. Figure 3 ; Figure 14 This invention Figure 10 A partial enlarged view of Figure 15 This is a schematic diagram of the structure of the cooling device of the present invention Figure 1 ; Figure 16 This is a schematic diagram of the structure of the cooling device of the present invention Figure 2 ; Figure 17 It is a partial enlarged view of the cooling device of the present invention; Figure 18 This invention Figure 15 A partial enlarged view of B.

[0032] Description of labels: 10. Mixing device; 20. First feeding device; 30. Second feeding device; 31. First bracket; 311. First workbench; 3111. First feeding port; 3112. Annular step; 3113. Observation window; 312. First column; 313. Crossbar; 314. Sealing cover; 32. Mixing cylinder; 321. Mixing tank; 322. Mixing cover; 323. Feeding cylinder; 3231. Annular portion; 33. Driving device; 34. Stirring device; 341, first rotating shaft; 342, first rotating blade; 3421, first horizontal portion; 3422, first vertical portion; 3423, first inclined portion; 35, conveying device; 351, conveying barrel; 3511, feeding port; 352, connecting barrel; 353, connecting bucket; 36, first supporting seat; 37, cloth cover; 371, metal sheet; 38, feeding screw; 39, ring magnet; 40, pelletizing device; 41, first Second bracket; 411, second column; 412, second workbench; 42, outer cover; 421, material inlet; 4211, extrusion channel; 422, second material outlet; 423, cold air inlet; 424, observation port; 43, rotating motor; 44, tool assembly; 441, second rotating shaft; 442, blade; 45, pitch adjustment assembly; 451, pitch adjustment motor; 452, pitch adjustment screw; 453, adjusting nut; 454, support plate; 46 , guide assembly; 461, slide rail; 462, slider; 47, acrylic plate; 48, screen; 50, cooling device; 51, box; 511, air outlet duct; 512, cable management trough; 513, reversing slot; 52, cooling assembly; 53, fan assembly; 531, fan blade; 532, protective frame; 54, power cord; 55, decorative panel; 56, rubber pad; 57, mortise and tenon structure; 571, protrusion; 572, groove; 58, flange. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] See also Figures 1 to 18 , is a granulation device for bio-based degradable materials as an embodiment of the present invention, including a granulation device 40 and a cooling device 50, wherein the granulation device 40 is used to cut the strip material into granules; the cooling device 50 is used to blow out cold air.

[0035] Please refer to the following for details: Figure 10The pelletizing device 40 includes: a second bracket 41, an outer cover 42, a distance adjustment component 45, a rotary motor 43, and a cutter assembly 44. The second bracket 41 plays a supporting role; the outer cover 42 is arranged on the second bracket 41 and is hollow inside. The outer cover 42 has an inlet 421 connected to the inside of the outer cover 42 and used to communicate with the first discharge port, and a second discharge port 422 connected to the inside of the outer cover 42; the distance adjustment component 45 is arranged on the second bracket 41; the rotary motor 43 is arranged on the distance adjustment component 45 and the output end extends to the inside of the outer cover 42; the cutter assembly 44 Located in the outer cover 42 and connected to the output end of the rotating motor 43; a plurality of extrusion channels 4211 are provided at the material inlet 421, and the material mixed by the mixing device 10 is formed into strips after passing through the extrusion channels 4211; the rotating motor 43 drives the cutter assembly 44 to rotate to cut the material entering the material inlet 421 into granules; the distance adjustment assembly 45 drives the rotating electrode and the cutter assembly 44 to move the cutter assembly 44 away from or close to the cutter assembly 44, and the cold air generated by the cooling device 50 is connected to the outer cover 42 through the air outlet pipe 511. The granulation equipment of the present invention adjusts the distance between the cutter assembly 44 and the material inlet by the rotating motor 43 to achieve precise control of different particle sizes, thereby solving the problems of poor adaptability of the equipment in the prior art. At the same time, the cooling device 50 is provided to cool the incoming material, avoiding the problems of uneven particle size of the cut material due to insufficient material hardness, incomplete cutting, and low production efficiency.

[0036] Please refer to the following for details: Figure 1The granulation equipment also includes: a mixing device 10, a first feeding device 20, and a second feeding device 30. The mixing device 10 is used to mix plastic materials and bio-based materials and extrude them. It has a first feed port, a second feed port, and a first discharge port. The first feeding device 20 is connected to the first feed port and is used to heat the plastic. The second feeding device 30 is connected to the second feed port and is used to mix the bio-based materials. A pelletizing device 40 is connected to the first discharge port and is used to pelletize the material extruded by the mixing device 10. Specifically, the first and second feed ports are arranged above the mixing device 10, the first discharge port is arranged on the side wall of the mixing device 10 and near the bottom, the first feeding device 20 and the mixing device 10 are arranged side by side, and the second feeding device 30 is arranged below the mixing device 10. The pelletizing device 40 is arranged side by side with the mixing device 10. The first and second feeding ports can be feeding funnels. Of course, only the first feeding port can be provided, and the first and second feeding devices 20 and 30 can share the first feeding port. The mixing device 10 employs an internal mixer or kneader, which mixes the plastic and biomass material and extrude the mixture into the pelletizer 40. The first feeder 20 employs an extruder, which heats and extrudes the plastic material, and connects its extrusion port to the first feed port. Specifically, these connections can be made via connecting pipes, the outer walls of which are provided with an insulating or heating layer. The mixing device 10 and the first feeder 20 of the present invention can employ existing equipment.

[0037] Please refer to the following for details: Figures 3 to 9 The second unloading device 30 includes: a first bracket 31, a mixing drum 32, a driving device 33, a stirring device 34, and a conveying device 35. A first workbench 311 is provided below the first bracket 31, and a first unloading port 3111 is provided on the first workbench 311, and the first unloading port 3111 is provided corresponding to the second feeding port; the mixing drum 32 is provided on the first bracket 31 and is located above the first workbench 311, and a discharge end is provided below; the driving device 33 is provided above the mixing drum 32 and its output end faces the inside of the mixing drum 32; the stirring device 34 is located inside the mixing drum 32 and is connected to the output end of the stirring device 34; the conveying device 35 is provided above the mixing drum 32 to convey the material into the mixing drum 32. The stirring unloading device for bio-based degradable materials of the present invention conveys the material by providing the conveying device 35. The material is conveyed into the mixing drum 32, and the driving device 33 drives the stirring device 34 to mix the material uniformly before entering the next process, which greatly improves the uniformity of the material. At the same time, the second blanking device 30 adopts a modular structure to facilitate installation or disassembly for maintenance and other operations.

[0038] Please refer to the following for details: Figure 3 、 Figure 4The first bracket 31 also includes a first column 312 arranged on the first workbench 311, and at least three first columns 312 are provided. The present invention provides four first columns 312, and a crossbar 313 perpendicular to the first column 312 is provided between two adjacent first columns 312. The crossbar 313 plays a reinforcing role, improving the stability and firmness of the entire first bracket 31. The bottoms of the four first columns 312 can be directly welded to the four corners of the upper end face of the first workbench 311, and the two ends of the crossbar 313 can also be fixed to the side wall of the first column 312 by welding. A first support seat 36 is provided on the outside of the mixing drum 32. The first support seat 36 corresponds to the first column 312 and is located at the top of the first column 312. The first support seat 36 can be made of metal and is directly welded to the outer wall of the mixing drum 32.

[0039] Please refer to the following for details: Figure 3 、 Figure 4 The driving device 33 uses a motor and a turbine reducer to drive the stirring device 34 to rotate in the stirring barrel 32. The specific fixing and connection methods can be adopted by existing technologies. The conveying device 35 adopts a vacuum conveying device 35, which includes a conveying barrel 351, a connecting barrel 352 arranged below the conveying barrel 351, and a connecting bucket 353 arranged below the connecting barrel 352. The upper part of the connecting barrel 352 is connected to the lower part of the conveying barrel 351 by a clamp, and the conveying barrel 351 is provided with at least one feeding port 3511. The conveying barrel 351 of the present invention is provided with two feeding ports 3511 for connecting with the inside of the conveying barrel 351, that is, the vacuum conveying device 35 of the present invention is used to communicate with the stirring barrel 32 through the connecting barrel 352 and the connecting bucket 353. The lower part of the connecting barrel 352 is connected to the upper part of the connecting bucket 353 by a number of bolts. The lower part of the connecting bucket 353 can be directly welded to the upper part of the stirring barrel 32 and communicate with the inside of the stirring barrel 32. A vacuum conveying device 35, also known as a vacuum conveyor, is a dust-free, closed-pipe conveying device that uses vacuum suction to transport granular and powdered materials. The pressure differential between the vacuum and ambient air creates a flow of gas within the pipe, driving the movement of the powdered material and thus conveying the powder. my country has introduced advanced vacuum technology from abroad and continuously refined and improved it, resulting in widespread use in various light and heavy industries, including the chemical, pharmaceutical, food, metallurgy, building materials, and agricultural and sideline industries. Vacuum conveying, a closed-pipe conveying method, eliminates dust pollution, improves the working environment, and reduces environmental and human contamination of materials, thereby enhancing cleanliness. Because it operates through pipes, it occupies a small space and can transport powders in confined spaces, creating an aesthetically pleasing workspace. It is also not restricted by distance. Furthermore, vacuum conveyors reduce labor intensity and improve work efficiency, making them the preferred method for conveying most powdered materials.

[0040] Please refer to the following for details: Figure 3 、 Figure 4 The mixing drum 32 includes a mixing tank 321 and a mixing cover 322 disposed at the opening of the mixing tank 321. The driving device 33 and the conveying device 35 are disposed on the upper end surface of the mixing cover 322. The conveying device 35 and the mixing device 34 are arranged in an upper and lower structure, which reduces the floor space and improves the utilization rate of the space. Specifically, the mixing cover 322 is provided with a first through hole for feeding and a second through hole for the output end of the driving device 33 to pass through. The connecting bucket 353 is welded to the upper end surface of the mixing cover 322 corresponding to the first through hole. The driving device 33 can be directly fastened to the mixing cover 322 by a number of bolts. The mixing cover 322 is also fastened to the opening of the mixing tank 321 by a number of bolts. A discharge barrel 323 communicating with the interior of the mixing tank 321 is further disposed below the mixing tank 321. A cloth sleeve 37 with openings at both ends is sleeved on the lower outer side of the discharge barrel 323. The upper side of the cloth sleeve 37 is sleeved on the lower outer side wall of the discharge barrel 323, and the lower side is placed in the first discharge opening 3111. An annular step 3112 is provided above the first workbench 311 and at the first discharge opening 3111. An annular magnet 39 is provided or embedded in the outer / inner wall of the annular step 3112. Several arc-shaped metal sheets 371 are provided on the outer side of the cloth sleeve 37, corresponding to the annular magnet 39. The annular step 3112 is provided to better restrict the lower portion of the cloth sleeve 37. The annular magnet 39 can also generate a magnetic force to attract the metal sheets 371 located on the outer side of the cloth sleeve 37, allowing the opening below the cloth sleeve 37 to be opened more effectively for smooth material discharge. The metal sheets 371 can be sewn or glued to the outer wall of the cloth sleeve 37. An annular portion 3231 is also provided below the outer wall of the discharge barrel 323 to prevent the cloth sleeve 37 from falling off. The upper opening of the cloth sleeve 37 passes through the annular portion 3231 and is then secured with a cable tie or buckle. Once secured, the annular portion 3231 effectively prevents the cloth sleeve 37 from falling off the discharge barrel 323.

[0041] Please refer to the following for details: Figure 8 、 Figure 9The stirring device 34 includes a first rotating shaft 341 and a plurality of first rotating blades 342 arranged on the outer wall of the rotating shaft. The heights of the plurality of first rotating blades 342 are different. A feeding screw 38 connected to the bottom of the first rotating shaft 341 is also provided inside the discharge barrel 323. The rotation of the first rotating shaft 341 drives the feeding screw 38 to rotate, and is used to feed the stirred material into the cloth sleeve 37. The first rotating blade 342 includes a first horizontal portion 3421 perpendicular to the outer wall of the first rotating shaft 341, a first vertical portion 3422 whose upper end is connected to the first horizontal portion 3421 and is perpendicular to the first horizontal portion 3421, and a first inclined portion 3423 for connecting the bottom of the first vertical portion 3422 and being inclined to the outer wall of the first rotating shaft 341. The first vertical portion 3422 is arranged parallel to the first rotating shaft 341 and there is a certain distance between the two. At the same time, in order to improve the efficiency and uniformity of stirring, the first rotating blade 342 has two settings. Please refer to the following for details. Figure 6 One of them is: the structure and size of the first rotating blade 342 are completely the same, but the first rotating blade 342 is set at different heights, please refer to Figure 7 Another type is: the structure of the first rotating blade 342 is consistent, but the size is slightly different. Along the outer wall of the first rotating shaft 341, the length of the first horizontal portion 3421 gradually decreases, and the distance between the first vertical portion 3422 and the first rotating shaft 341 gradually decreases, so that materials at different heights or in different longitudinal directions are all stirred.

[0042] The first workbench 311 of the present invention is further provided with an observation window 3113 , and a movable sealing cover 314 is provided on the observation window 3113 . Subsequent processes can be observed through the observation window 3113 , and the sealing cover 314 can be used for sealing.

[0043] The working principle of the second blanking device 30 of the present invention is as follows: The material is conveyed into the mixing drum 32 by the conveying device 35, and the driving device 33 drives the stirring device 34 to mix the material in the mixing drum 32. The evenly mixed material is discharged into the cloth sleeve 37 through the feeding screw 38. The cloth sleeve 37 can be tightened at any time to prevent the mixed material from being discharged. That is, the stirring and discharging device conveys the material by setting the conveying device 35. The material is conveyed into the mixing drum 32 and the driving device 33 drives the stirring device 34 to mix the material evenly before entering the next process, which greatly improves the uniformity of the material.

[0044] Please refer to the following for details: Figure 9-11 , wherein the second bracket 41 includes a plurality of second columns 411 and a second workbench 412 arranged on the second columns 411; the inlet 421 is arranged on the side wall of the outer cover 42, and the second outlet 422 is arranged at the bottom of the outer cover 42.

[0045] For details, please refer to Figure 9-14 The pitch adjustment assembly 45 includes a pitch adjustment motor 451 mounted on the second bracket 41, a pitch adjustment screw 452 mounted at the output end of the pitch adjustment motor 451, a pitch adjustment nut 453 mounted on the pitch adjustment screw 452, and a support plate 454 mounted on the pitch adjustment nut 453. The rotary motor 43 is mounted on the support plate 454. The pitch adjustment screw 452 and the pitch adjustment nut 453 form a conventional ball screw structure. A guide assembly 46 is also disposed between the support plate 454 and the second bracket 41 to enable the adjustment motor to drive the support plate 454 to move along a straight line. The guide assembly 46 includes a slide rail 461 mounted on the second bracket 41 and a slider 462 mounted at the bottom of the support plate 454. The slider 462 moves along the slide rail 461, and two guide assemblies 46 can be provided. The pitch adjustment assembly 45 is used to adjust the distance between the tool assembly 44 and the material inlet 421, allowing the length of the material cut by the tool assembly 44 to be adjustable according to actual needs. Specifically, the pitch-adjusting motor 451 is arranged on the second workbench 412 through a motor support, and the two slide rails 461 are arranged side by side on the second workbench 412. The two ends of the pitch-adjusting screw rod 452 are arranged on the second workbench 412 using screw rod support seats. The pitch-adjusting screw rod 452 is driven to rotate by the pitch-adjusting motor 451, and the pitch-adjusting screw rod 452 drives the pitch-adjusting nut 453 to move, thereby driving the support plate 454 to move, so that the tool assembly 44 and the rotating motor 43 located on the support plate 454 are away from or close to the incoming material port 421.

[0046] Please refer to the following for details: Figure 10 To enhance material cooling, a cold air inlet 423 is provided above the outer cover 42. This cool air not only helps lower the material temperature, achieving sufficient hardness for cutting and preventing material accumulation or clogging during the cutting process, but also helps maintain the dryness of the particles during cutting, improving cutting efficiency and preventing overheating.

[0047] Please refer to the following for details: Figure 10 The tool assembly 44 includes a second rotating shaft 441 and a plurality of blades 442 disposed on the second rotating shaft 441. The second rotating shaft 441 is connected to the output end of the rotary motor 43. The tool is located inside the outer cover 42, which can introduce cooling air and collect the cut materials uniformly. That is, the rotary motor 43 serves as the power source of the device, driving the blades 442 through the second rotating shaft 441 to perform the cutting operation; the multiple blades 442 are arranged in a uniform manner to ensure uniform cutting of the materials during the cutting process. The outer cover 42 serves as the outer shell covering the tool assembly 44. On the side opposite to the rotary motor 43, an inlet 421 is provided, through which cooling air is introduced, and a second outlet 422 is provided below, which are used to guide the airflow and assist in the discharge of the cut particles.

[0048] Please refer to the following for details: Figure 11 In order to facilitate the operator to observe the pelletizing status in real time, an observation port 424 is provided on one end face of the outer cover 42. The position of the observation port 424 ensures that the operator can easily check the working status of the tool and the condition of the pellets after cutting, and promptly discover possible problems such as uneven cutting or material blockage. The observation port 424 provides transparent monitoring of the cutting process, improving the safety of operation and the controllability of the production process. The design of the observation port 424 is further optimized, and it is proposed to fix an acrylic plate 47 on the surface of the observation port 424. The acrylic plate 47 not only has good light transmittance, but also has high impact resistance, which can effectively protect the observation port 424 from damage by material or tool fragments, thereby extending the service life of the equipment.

[0049] Please refer to the following for details: Figure 11 , the second discharge port 422 is snap-fitted with a screen 48. The screen 48 is used to screen the cut particles to ensure that the particles are of uniform size. There are many types of bio-based degradable materials, and the hardness, humidity, morphology and other properties of the particles are also different. The screen 48 can select an appropriate aperture according to the material properties to ensure that the cut particles meet the requirements. If there are particles that do not meet the requirements, the screen 48 can effectively isolate them and improve the consistency of the final product. The snap-fit ​​design of the screen 48 has a certain degree of flexibility, which makes it easy for operators to quickly complete the replacement or cleaning of the screen 48 when necessary, reducing the downtime of the equipment and improving the operating convenience of the equipment.

[0050] The outer cover 42 is connected to the first discharge port of the mixing device 10 through a flange, which can be effectively connected to ensure smooth entry of materials. The flange connection improves the sealing of the connection between components, avoids material leakage or overflow, and improves the stability of the device operation.

[0051] Please refer to the following for details: Figure 15-18The cooling device 50 includes: a housing 51, a cooling assembly 52, and a fan assembly 53. An air outlet duct 511 is provided on the housing 51 for connecting to the pelletizing device 40; the cooling assembly 52 is provided at one end of the inner side of the housing 51; and the fan assembly 53 is provided on the housing 51 for introducing the cold air generated by the cooling assembly 52 into the pelletizing device 40 through the air outlet duct 511. The cooling assembly 52 directly adopts the existing refrigeration system to cool the air blown in by the fan assembly 53 and then blow it into the pelletizing device 40. The air outlet duct 511 is connected to the housing 51 through a flange 58, and the other end is also connected to the outer cover 42 through a flange 58. The flange 58 connection design can ensure the sealing between the air outlet duct 511 and the housing 51, prevent cold air leakage, and improve cooling efficiency. The sealing part of the flange 58 is equipped with a high-density sealing gasket, which can maintain an excellent sealing effect for a long time and ensure the stable operation of the cooling system. The flange 58 connection not only secures the air outlet duct 511 to the housing 51 but also allows for removal and maintenance when necessary. The flange 58 connection is highly adaptable and can be customized to suit the needs of different devices, making docking easier.

[0052] Please refer to the following for details: Figure 15 The fan assembly 53 includes blades 531 and a protective frame 532. The blades 531 are driven by an electric motor to rotate at high speed, generating a strong airflow to introduce cooling air into the interior of the cooling assembly 52. ​​After the air is cooled by the cooling assembly 52, it enters the pelletizing device 40 through the air outlet pipe 511, thereby quickly taking away the heat and helping the material to cool down quickly. In order to improve the safety of the fan assembly 53, a protective frame 532 is designed on the surface of the blades 531. The protective frame 532 can effectively prevent the entry of external foreign matter and avoid the occurrence of fan assembly 53 failure caused by foreign matter interference. The material of the protective frame 532 is selected from high-temperature resistant and corrosion-resistant metal to ensure that it will not be deformed or damaged due to high temperature or chemical corrosion during long-term operation; the fan assembly will generate vibration during operation, and the protective frame 532 also has a certain anti-seismic design to ensure the stability of the equipment. The design of the protective frame 532 not only improves the safety of the equipment, but also reduces the noise during the operation of the fan.

[0053] Please refer to the following for details: Figure 17The fan assembly 53 is electrically conductive through the power cord 54. A mutually perpendicular and interconnected wire management groove 512 and a reversing groove 513 are provided on the outside of the housing 51. Several wire management grooves 512 are provided horizontally, and the reversing groove 513 is provided vertically, with at least one provided to divide any wire management groove 512 into at least two sections. Specifically, a power cord 54 is installed on the fan assembly 53. The wire management groove 512 and the reversing groove 513 are designed to reasonably arrange the direction of the power cord 54, avoid confusion or entanglement of the power cord 54, and thus improve the operational stability of the equipment. The wire management groove 512 is provided on the outer wall surface of the housing 51. The thickness and layout space of the power cord 54 are fully considered during the design, so that it can accommodate a power cord 54 of a certain diameter without excessive bending or looseness. The groove depth is adapted to the diameter of the power cord 54, ensuring that the power cord 54 can pass through the groove smoothly and be stably fixed. In order to further organize the power cord 54, the wire management groove 512 is distributed along the horizontal plane, and the reversing groove 513 is designed to be arranged vertically on the wire management groove 512. The function of the reversing groove 513 is to guide the power cord 54 to turn, so that the power cord 54 can go to different parts of the box 51 in an orderly manner to avoid crossing and entanglement. Furthermore, a detachable decorative panel 55 is provided on the box 51, and the provision of the decorative cover further optimizes the storage and protection of the power cord 54. The decorative cover is connected to the box 51 through a mortise and tenon structure 57. The mortise and tenon structure 57 includes a trapezoidal protrusion 571 provided on the decorative cover and a groove 572 on the surface of the box 51. This connection method not only ensures that the decorative cover is firmly fixed, but also facilitates disassembly and maintenance. Users can easily remove the decorative cover to adjust or inspect the power cord 54, which is convenient for disassembly and reinstallation. It not only enhances the appearance protection of the power cord 54 storage, but also facilitates user maintenance and adjustment. The material selection for the decorative cover takes into account high-temperature and corrosion resistance requirements, ensuring it maintains excellent performance during long-term use. Rubber pads 56 are also installed within the cable management slot 512 and the reversing slot 513. Specifically, the rubber pads 56 are applied to the surfaces of the cable management slot 512 and the reversing slot 513 to reduce friction between the power cord 54 and the slot walls, reducing wear and extending the service life of the power cord 54. Furthermore, the rubber pads 56 have a certain degree of elasticity, which can buffer vibrations during high-speed operation of the fan, improving the stability of the entire system.

[0054] The cooling device 50 of this application also adopts a modular design approach. The management system for the cooling assembly 52, fan assembly 53, and power cord 54 is standardized, making the device's disassembly, maintenance, and replacement more convenient. The interfaces of each component are precisely matched, ensuring error-free installation and preventing unstable equipment operation caused by interface mismatches. This modular design allows the device to be flexibly configured to meet different production needs. For example, to meet different cooling requirements, users can adjust the number of fans, the layout of the cooling assembly 52, or the layout of the power cord 54, greatly improving the device's adaptability and scalability. Through optimized design, the problem of chaotic power cord 54 management in traditional cooling devices 50 has been successfully resolved. The design of the cable management trough 512, the reversing groove 513, and the decorative cover not only effectively organizes the power cord 54, preventing entanglement and damage, but also improves the device's aesthetics and safety. The use of rubber pads 56 reduces friction and wear on the power cord 54, extending its service life. The safety protection design of the fan assembly 53 improves the stability and reliability of the system, prevents foreign matter from entering the fan system, and reduces equipment noise. The connection between the air outlet pipe 511 and the flange 58 of the box body 51 ensures maximum cooling efficiency.

[0055] In summary, the granulation equipment of the present invention adjusts the distance between the tool assembly and the feed port by a rotating motor to achieve precise control of different particle sizes, thereby solving problems such as poor adaptability of the equipment in the prior art. At the same time, a cooling device is provided to cool the incoming material, avoiding problems such as uneven particle size of the cut material due to insufficient material hardness, incomplete cutting, and low production efficiency.

[0056] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A granulation device for biodegradable materials, characterized in that: include: Pelletizing device, used to cut strip materials into granules; A cooling device, the cooling device being used to blow out cold air; The pelletizing device comprises: a second bracket, the second bracket playing a supporting role; An outer cover, the outer cover is provided on the second bracket and is hollow inside, and the outer cover has an inlet port communicating with the interior thereof and used to communicate with the first discharge port, and a second discharge port communicating with the interior thereof; a distance-adjusting assembly, wherein the distance-adjusting assembly is arranged on the second bracket; A rotating motor, wherein the rotating motor is arranged on the pitch adjustment assembly and an output end of the rotating motor extends into the interior of the outer cover; a tool assembly, the tool assembly being located in the outer cover and connected to the output end of the rotating motor; A plurality of extrusion channels are provided at the material inlet, and the materials mixed by the mixing device are formed into strips after passing through the extrusion channels; the rotary motor drives the tool assembly to rotate to cut the materials entering the material inlet into granules; the distance adjustment assembly drives the rotating electrode and the tool assembly to move so that the tool assembly moves away from or close to the tool assembly, and the cold air generated by the cooling device is connected to the outer cover through the air outlet pipe.

2. The granulation equipment for biodegradable materials according to claim 1, characterized in that: The granulation equipment also includes: A mixing device for mixing and extruding a plastic material and a bio-based material, the mixing device having a first feed port, a second feed port, and a first discharge port; a first blanking device, connected to the first feed port and used for heating the plastic; a second feeding device, connected to the second feeding port, for mixing bio-based materials; The pelletizing device is connected to the first discharge device and is used to pelletize the material extruded by the mixing device.

3. The granulation equipment for biodegradable materials according to claim 2, characterized in that: The mixing device adopts an internal mixer or a kneader, which is used to mix the plastic and the bio-based material and extrude them into the pelletizing device; the first feeding device adopts an extruder, which heats and extrudes the plastic material and connects its extrusion port to the first feed port.

4. The granulation equipment for biodegradable materials according to claim 2, characterized in that: The second blanking device comprises: A first bracket, wherein a first workbench is provided below the first bracket, and a first material discharge port is provided on the first workbench, and the first material discharge port is provided corresponding to the second material feed port; A mixing drum, the mixing drum is arranged on the first bracket and is located above the first workbench, and a discharging end is arranged below the mixing drum; A driving device, wherein the driving device is arranged above the mixing drum and an output end thereof faces the inner side of the mixing drum; A stirring device, the stirring device is located inside the stirring cylinder and connected to the stirring device output end; The conveying device is arranged above the mixing drum to convey the material into the mixing drum.

5. The granulation equipment for biodegradable materials according to claim 4, characterized in that: The mixing drum body includes a mixing tank and a mixing cover arranged at the opening of the mixing tank, and the driving device and the conveying device are arranged on the upper end surface of the mixing cover; a discharge barrel connected to the interior of the mixing tank is also provided below the mixing tank, and a cloth cover with openings at both ends is provided on the outer side of the lower side of the discharge barrel, and the upper side of the cloth cover is provided on the outer side wall of the lower side of the discharge barrel, and the lower side is placed in the first discharge port.

6. The granulation equipment for biodegradable materials according to claim 4, characterized in that: An annular step is provided above the first workbench and at the first material discharge port, an annular magnet is provided or embedded on the outer wall / inner wall of the annular step, and a plurality of arc-shaped metal sheets are provided on the outer side of the cloth sleeve corresponding to the annular magnet.

7. The granulation equipment for biodegradable materials according to claim 1, characterized in that: The pitch adjustment assembly includes a pitch adjustment motor arranged on the second bracket, a pitch adjustment screw arranged on the output end of the pitch adjustment motor, a pitch adjustment nut sleeved on the pitch adjustment screw, and a support plate arranged on the pitch adjustment nut; the rotating motor is arranged on the support plate.

8. The granulation equipment for biodegradable materials according to claim 1, characterized in that: The cooling device comprises: A box body, wherein an air outlet pipe is provided on the box body for connecting to a pelletizing device; A cooling assembly is provided at one end of the inner side of the box body; The fan assembly is arranged on the box body and is used to introduce the cold air generated by the cooling assembly into the pelletizing device through the air outlet pipe.

9. The granulation equipment for biodegradable materials according to claim 8, characterized in that: The fan assembly includes fan blades and a protective frame.

10. The granulation equipment for biodegradable materials according to claim 8, characterized in that: The fan assembly is electrically conductive through a power cord, and a wire management groove and a reversing groove that are perpendicular to and connected to each other are provided on the outside of the box body, wherein the wire management grooves are provided in a plurality of rows and arranged horizontally, and the reversing groove is provided in a vertical manner, and at least one row and arranged to divide any wire management groove into at least two sections.

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