Intelligent control feeding method and system of double-screw granulator

Abstract

The invention discloses an intelligent control feeding system of a double-screw granulator. The intelligent control feeding system comprises a discharging barrel, a driving part and a discharging assembly. The invention further discloses a feeding method of the intelligent control feeding system of the double-screw granulator. According to the intelligent control feeding system of the double-screw granulator, the discharging assembly is adopted, controlled discharging of plastic particles can be achieved, the plastic particles can be prevented from being accumulated and blocked in a gathering area, and material blocking prevention and stable discharging control are achieved through one structure. The discharging assembly drives a first pushing piece, a second pushing piece, a first opening piece and a second opening piece to rotate through a downwards-moving blocking piece, the deformation piece is kept to be stressed, deformed and opened, then materials located between the deformation piece and the inner wall of the material storage area are extruded, the materials are kept to move under stress, then external force is canceled, discharging can be achieved, material blocking is avoided, and the discharging efficiency is improved. And normal discharging of the materials is ensured.

Description

Technical Field

[0001] This invention relates to feeding technology, and more particularly to an intelligent control feeding method and system for a twin-screw granulator. Background Technology

[0002] Plastics are polymers formed by polymerization of monomers through addition or condensation reactions. They possess moderate resistance to deformation, falling between fibers and rubber. They consist of synthetic resins and additives such as fillers, plasticizers, stabilizers, lubricants, and colorants. Plastics are widely used in daily life, generating substantial amounts of plastic waste. To reduce waste, people recycle this waste plastic, employing specific recycling processes to turn waste into valuable resources. Generally, waste plastics are crushed into smaller particles, which are then processed to repurpose them into usable plastic products.

[0003] Currently, twin-screw extruders are commonly used in the manufacturing of plastic granules. During production, these extruders require feeding materials into the machine for heating and other processes. However, a large volume of material during feeding can cause blockages in the feed pipe, resulting in slow or stopped material discharge and impacting production. Therefore, to prevent this problem from hindering timely material discharge, intelligent control is needed to facilitate material discharge and regulate the amount of material discharged. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this invention proposes an intelligent control feeding method and system for a twin-screw granulator.

[0005] An intelligent control feeding system for a twin-screw granulator includes:

[0006] A feeding cylinder, the interior of which is hollowed out to form a material storage area;

[0007] A driving component is disposed outside the feeding cylinder, and a driving rod is provided at the lower end of the driving component;

[0008] A feeding assembly disposed inside the feeding cylinder, the feeding assembly being hinged to the material storage area via a fixed rod, the feeding assembly comprising:

[0009] A sealing element, used to control the discharge and stop of materials in the storage area, wherein the lower end of the sealing element is connected to a drive rod;

[0010] A first and a second support member are mounted on a fixed rod, with their upper ends hinged to the fixed rod.

[0011] A first pusher and a second pusher are hinged to the upper end of the sealing member. The first pusher and the second pusher are connected to the sealing member through a hinge rod. The lower end of the first pusher is hinged to the lower end of the first expansion member, and the lower end of the second pusher is hinged to the lower end of the second expansion member.

[0012] And a deformable element installed on the fixed rod and fitted outside the first and second support members, wherein a deformable area is formed inside the deformable element.

[0013] The driving component pushes the driving rod downward, keeping the driving rod driving the sealing component downward, and through the upper end of the sealing component, it drives the upper ends of the first and second pushing components downward, keeping the first and second pushing components pushing the lower ends of the first and second supporting components to move in opposite directions, keeping the deformation area increasing.

[0014] In this invention, one end of the fixing rod is opened to form an air inlet, and the fixing rod is provided with multiple exhaust holes and symmetrically arranged exhaust ports. The exhaust holes are arranged vertically through the rod, and the exhaust ports open downwards.

[0015] In this invention, the vent is located outside the deformable part and within the storage area, while the vent is located inside the deformable part.

[0016] In this invention, the feeding cylinder is composed of a cylinder, a cone, and a feeding tube. The cone has a converging area inside, and the feeding tube has a feeding hole in the middle.

[0017] In this invention, the deformable part is composed of a fixing part, a bridging part, and a deformable part. The bridging part connects the fixing part and the deformable part. The fixing part is mounted on a fixing rod. The fixing part is made of rigid plastic, and the bridging part and the deformable part are made of soft plastic.

[0018] In this invention, a guide block is provided on the inner wall of the deformable part, and a guide arc surface is provided on the guide block. Sliding arc surfaces that cooperate with the guide arc surface are provided on both sides of the hinge rod.

[0019] In this invention, the first and second supporting members are provided with hinge interfaces, and the arc angle of the hinge interfaces is a large arc.

[0020] In this invention, the lower ends of the first and second pushers are provided with hinge ends that cooperate with the hinge interface.

[0021] In this invention, the sealing component is composed of a pulling plate, a connecting plate, and a sealing body. The pulling plate is hinged to a first pushing member and a second pushing member. The connecting plate is provided with a first unblocking member and a second unblocking member. The sealing body is provided with an annular surface and a conical surface. The lower end of the feed cylinder is provided with an elastic tube, and the sealing body is disposed inside the elastic tube.

[0022] A smart control feeding method for a twin-screw granulator, employing the aforementioned smart control feeding system for the twin-screw granulator, includes the following steps:

[0023] Step 1: Pour the required material into the feeding cylinder and inject gas into the fixing rod;

[0024] Step 2: Activate the drive unit, keep the drive unit moving the drive rod downward, and the drive rod will move the sealing component downward, keeping the sealing component out of the elastic tube;

[0025] Step 3: While the sealing component moves downward, the upper end of the sealing component drives the upper ends of the first and second pushing components to move downward, and the first pushing component rotates at the lower end of the first spreading component, and the second pushing component rotates at the lower end of the second spreading component;

[0026] Step 4: When the first and second pushers rotate, they keep the hinge rod moving downward along the guide arc surface of the guide block, and push the deformable part to deform outward through the first and second support members, thus clearing the material in the gathering area.

[0027] The intelligent control feeding method and system for a twin-screw granulator according to the present invention has the following beneficial effects: The intelligent control feeding system of the twin-screw granulator adopts a feeding assembly, which can not only achieve controlled feeding of plastic granules, but also prevent plastic granules from accumulating and clogging in the collection area. Material anti-clogging and stable feeding control are achieved through a single structure. The feeding assembly drives the first pushing member, the second pushing member, the first opening member, and the second opening member to rotate through a downwardly moving sealing member. This keeps the deformable member deformed and opened by force, thereby squeezing the material between the deformable member and the inner wall of the storage area, maintaining its force-driven movement. Then, the external force is removed, allowing the material to fall, avoiding material blockage, and ensuring normal material feeding. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the intelligent control feeding system of the twin-screw granulator of the present invention;

[0029] Figure 2 for Figure 1 Main perspective view;

[0030] Figure 3 for Figure 1 Exploded view;

[0031] Figure 4 for Figure 3 Perspective view of the feed cylinder structure in the middle;

[0032] Figure 5 for Figure 3 A schematic diagram of the fixed rod structure in the diagram;

[0033] Figure 6 for Figure 3 Schematic diagram of the deformable component structure in the middle;

[0034] Figure 7 for Figure 6 A schematic diagram of the structure in another direction;

[0035] Figure 8 for Figure 3 A schematic diagram of the feeding component structure in the middle;

[0036] Figure 9 for Figure 8 The main view;

[0037] Figure 10 for Figure 8 Exploded view;

[0038] Figure 11 for Figure 10 Schematic diagram of the first and second support components in the middle;

[0039] Figure 12 for Figure 10 Schematic diagram of the first and second pusher components in the middle;

[0040] Figure 13 for Figure 10 A schematic diagram of the sealing component structure.

[0041] In the diagram: 1. Feeding cylinder; 2. Driving component; 3. Feeding assembly; 4. Sealing component; 5. Elastic tube; 6. Storage area; 7. Gathering area; 8. First unblocking component; 9. Second unblocking component; 10. Feeding pipe; 11. Cylinder body; 12. Conical body; 13. Feeding hole; 14. Driving rod; 15. Fixing rod; 16. Air inlet; 17. Air outlet; 18. First opening component; 19. Second opening component; 20. First pushing component; 21. Second pushing component; 22. Deformation component; 23. Hinge rod; 24. Pulling plate; 25. Connecting plate; 26. Sealing body 2 7. Annular surface 28, conical surface 29, hinge interface 30, first hinge ring 31, receiving port 32, second hinge ring 33, first hinge hole 34, moving area 35, blocking surface 36, third hinge ring 37, second hinge hole 38, hinge end 39, plate body 40, deformation area 41, fixing part 42, bridging part 43, deformation part 44, fixing hole 45, guide block 46, guide arc surface 47, sliding arc surface 48, hinge arm 49, fourth hinge ring 50, third hinge hole 51, clearance opening 52. Detailed Implementation

[0042] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0043] like Figures 1 to 13As shown, the intelligent control feeding system of this twin-screw granulator includes a feeding cylinder 1, a driving component 2, and a feeding assembly 3. The feeding assembly 3 is located inside the feeding cylinder 1, while the driving component 2 is located on the outer wall of the feeding cylinder 1. By activating the driving component 2, the driving component 2 drives the sealing component 4 in the feeding assembly 3 to move downward, thereby causing the sealing component 4 to disengage from the structure of the inner wall of the elastic tube 5. The lower end of the sealing component 4 is conical, so it can ensure that the material in the storage area 6 can be discharged smoothly. At the same time as discharge, it can also compress the material in the collection area 7, facilitating the direct drop of the material. Simultaneously, after the sealing component 4 is opened for a certain period of time, when it is closed, the compressing pressure on the compressed material can be released, thus keeping the material loose when the compressing pressure disappears, which is conducive to the discharge of the material and avoids the material from accumulating and blocking in the collection area 7. In addition, it works with the first unblocking component 8 and the second unblocking component 9 to unblock the material inside the feeding pipe 10, preventing the material from blocking in the feeding pipe 10.

[0044] The interior of the feeding cylinder 1 is hollowed out to form a storage area 6. The feeding cylinder 1 consists of a cylinder body 11, a conical body 12, and a feeding pipe 10. The conical body 12 forms a converging area 7, and the feeding pipe 10 forms a feeding hole 13 in the middle. Because the converging area 7 is set in an inverted cone shape to facilitate the collection and feeding of materials, it is easy for materials to become blocked in the middle of the feeding pipe 10, which may result in the material not being able to be discharged or discharging slowly.

[0045] The driving component 2 is located outside the feeding cylinder 1. The lower end of the driving component 2 is provided with a driving rod 14, and the lower end of the driving rod 14 is connected to the lower end of the sealing component 4. The shape of the driving rod 14 is configured to match the cross-section of the conical body 12 and the feeding tube 10, so that the driving rod 14 can push the sealing component 4 downward.

[0046] The feeding assembly 3 is installed inside the feeding cylinder 1. The feeding assembly 3 is hinged to the storage area 6 by a fixing rod 15. One end of the fixing rod 15 is opened to form an air inlet 16, which can be connected to the compressor. By connecting the fixing rod 15 to the compressor, the compressed high-pressure gas is delivered to the fixing rod 15 and discharged through the exhaust hole 17 and exhaust port 18 on the fixing rod 15, which blows the granular material inside and accelerates the discharge of the material.

[0047] The fixing rod 15 is provided with multiple vent holes 17 and symmetrically arranged vent outlets 18. The vent holes 17 are arranged vertically through the material, and the vent outlets 18 open downwards. The vent holes 17 are located on the outside of the deformable member 23 and within the storage area 6, while the vent outlets 18 are located inside the deformable member 23. The vent holes 17 can be used to blow the material in the storage area 6, loosening the material inside. The vent outlets 18 are used to facilitate the blowing of gas to blow the material at the lower end of the deformable member 23 into the feed hole 13, thereby accelerating the discharge of the material.

[0048] The feeding assembly 3 includes a sealing component 4, a first supporting component 19, a second supporting component 20, a first pushing component 21, a second pushing component 22, and a deforming component 23. The upper ends of the first supporting component 19 and the second supporting component 20 are hinged to the fixed rod 15, and their lower ends are hinged to the lower ends of the first pushing component 21 and the second pushing component 22. The upper ends of the first pushing component 21 and the second pushing component 22 are hinged to the upper end of the sealing component 4 via a hinge rod 24. The movement of the sealing component 4 enables the movement of the first pushing component 21, the second pushing component 22, the first supporting component 19, and the second supporting component 20, keeping them able to push the deforming component 23 to be subjected to force, causing it to deform and expand outwards.

[0049] The sealing component 4 is used to control the discharge and stop of materials in the storage area 6. The lower end of the sealing component 4 is connected to the drive rod 14. The sealing component 4 consists of a pull plate 25, a connecting plate 26, and a sealing body 27. The pull plate 25 is hinged to the first pusher 21 and the second pusher 22. The connecting plate 26 is provided with a first unblocking component 8 and a second unblocking component 9. The first unblocking component 8 and the second unblocking component 9 are symmetrically arranged, but not at the same height. The sealing body 27 is provided with an annular surface 28 and a conical surface 29. The lower end of the feed cylinder 1 is provided with an elastic tube 5, and the sealing body 27 is disposed inside the elastic tube 5.

[0050] The pull plate 25 is provided with a hinge arm 49, and the hinge arm 49 is provided with a fourth hinge ring 50. A third hinge hole 51 is formed in the middle of the fourth hinge ring 50, and the hinge rod 24 is disposed in the third hinge hole 51. Furthermore, a clearance opening 52 is formed between the hinge arms 49 to keep the first pusher 21 and the second pusher 22 within it.

[0051] The first unblocking component 8 and the second unblocking component 9 are bent and extend to the side of the connecting plate 26, so as to bring down all the material around the connecting plate 26, avoid blockage and speed up the discharge of material.

[0052] The first support member 19 and the second support member 20 are mounted on the fixed rod 15, and the upper ends of the first support member 19 and the second support member 20 are hinged to the fixed rod 15. The first support member 19 and the second support member 20 are provided with hinge interfaces 30, and the arc angle of the hinge interfaces 30 is a large arc.

[0053] The first support member 19 is provided with symmetrically arranged first hinge rings 31, and a receiving opening 32 is formed between the first hinge rings 31. The second support member 20 is provided with a second hinge ring 33, which is located within the receiving opening 32. A first hinge hole 34 is provided between the first hinge ring 31 and the second hinge ring 33, and the hinge rod 24 is disposed within the first hinge hole 34.

[0054] An active area 35 is formed between the first support member 19 and the second support member 20. The active area 35 can be opened, and the first push member 21 and the second push member 22 are disposed within the active area 35.

[0055] Simultaneously, a tension spring (not shown in the figure) can be provided between the first opening member 19 and the second opening member 20. The tension spring is located within the active area 35 and above the first pushing member 21 and the second pushing member 22. The tension spring can maintain the first opening member 19 and the second opening member 20 in a resetting, opposing rotational approaching position when not pulled by the blocking member 4, in conjunction with the push of the drive rod 14.

[0056] A blocking surface 36 is provided at the hinge interface 30 on the first support member 19 and the second support member 20. The blocking surface 36 is used to block the rotation angle of the first push member 21 and the second push member 22, so that they can rotate within a certain angle range.

[0057] The first pusher 21 and the second pusher 22 are hinged to the upper end of the sealing member 4. The first pusher 21 and the second pusher 22 are connected to the sealing member 4 through a hinge rod 24. The lower end of the first pusher 21 is hinged to the lower end of the first expansion member 19, and the lower end of the second pusher 22 is hinged to the lower end of the second expansion member 20.

[0058] The first pusher 21 and the second pusher 22 are provided with a third hinge ring 37, and a second hinge hole 38 is formed in the middle of the third hinge ring 37. The third hinge rings 37 on the first pusher 21 and the second pusher 22 are symmetrically arranged and are installed together.

[0059] The lower ends of the first pusher 21 and the second pusher 22 are provided with hinge ends 39 that cooperate with the hinge interface 30. The hinge ends 39 and the third hinge ring 37 are connected by a plate 40. The plate 40 is limited and blocked by the blocking surface 36 to prevent rotation angle.

[0060] A deformable member 23 is mounted on the fixed rod 15 and fitted outside the first support member 19 and the second support member 20. A deformable region 41 is formed inside the deformable member 23. The deformable member 23 consists of a fixed part 42, a bridging part 43, and a deformable part 44. The bridging part 43 connects the fixed part 42 and the deformable part 44. The fixed part 42 is mounted on the fixed rod 15. The fixed part 42 is made of hard plastic, while the bridging part 43 and the deformable part 44 are made of soft plastic.

[0061] Because the fixing part 42 is made of rigid plastic, it can be kept fixed on the fixing rod 15. The fixing part 42 is provided with symmetrically arranged fixing holes 45, and the fixing rod 15 is disposed in the fixing holes 45.

[0062] A guide block 46 is provided on the inner wall of the deformation section 44, and a guide arc surface 47 is provided on the guide block 46. Sliding arc surfaces 48 that cooperate with the guide arc surface 47 are provided on both sides of the hinge rod 24. Because the guide block 46 is provided on the inner wall of the deformation section 44, and the guide arc surface 47 is provided on the guide block 46, when the hinge rod 24 moves downward along with the sealing member 4, it can be driven to move downward together, thereby allowing the hinge rod 24 to slide on the guide arc surface 47. Since the guide block 46 is narrower at the top and wider at the bottom, it will push the deformation section 44 through the hinge rod 24, causing it to open and deform under force, compressing the material between the deformation section 44 and the inner wall of the storage area 6.

[0063] The driving member 2 pushes the driving rod 14 downward, keeping the driving rod 14 driving the sealing member 4 downward, and through the upper end of the sealing member 4, it drives the upper ends of the first pushing member 21 and the second pushing member 22 downward, keeping the first pushing member 21 and the second pushing member 22 pushing the lower ends of the first spreading member 19 and the second spreading member 20 to move in opposite directions, keeping the deformation area 41 larger.

[0064] A smart control feeding method for a twin-screw granulator, employing the aforementioned smart control feeding system for the twin-screw granulator, includes the following steps:

[0065] Step 1: Pour the material to be used into the feeding cylinder 1, and inject gas into the fixing rod 15. The high-pressure gas impacts the material to prevent it from accumulating and clogging, keeping it loose.

[0066] Step 2: Activate the drive unit 2, keeping the drive unit 2 moving the drive rod 14 downwards. The drive rod 14 then moves the sealing component 4 downwards, keeping the sealing component 4 out of the elastic tube 5. The elastic tube 5 can be made of soft rubber material, which can deform under force, facilitating contact between the sealing component 4 and the elastic tube 5, preventing material from falling out.

[0067] Step 3: While the sealing member 4 moves down, the upper end of the sealing member 4 drives the upper ends of the first pusher 21 and the second pusher 22 to move down, and keeps the first pusher 21 rotating at the lower end of the first support member 19 and the second pusher 22 rotating at the lower end of the second support member 20. After the first support member 19 and the second support member 20 rotate, the lower ends of the first support member 19 and the second support member 20 will be pushed and deformed by force, and move closer to the inner wall of the storage area 6.

[0068] Step 4: When the first pusher 21 and the second pusher 22 rotate, they keep the hinge rod 24 moving downward along the guide arc surface 47 of the guide block 46, and push the deformable member 23 to deform outward through the first support member 19 and the second support member 20, thus clearing the material in the gathering area 7.

[0069] like Figure 9 As shown, when the sealing member 4 moves towards F1, it will drive the first pushing member 21 and the second pushing member 22 to rotate around the hinge rod 24, thereby pushing the lower ends of the first opening member 19 and the second opening member 20 through the lower ends of the first pushing member 21 and the second pushing member 22, keeping them moving in opposite directions, that is, rotating towards F2.

[0070] 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 within the protection scope of the present invention.

Claims

1. An intelligent control feeding system for a twin screw granulator, characterized in that, The utility model relates to a material discharging device, including: The blanking cylinder is hollow in the inside and forms a storage area; The driving part is arranged outside the blanking cylinder, and the lower end of the driving part is provided with a driving rod; The blanking assembly is arranged inside the blanking cylinder, and the blanking assembly is hinged inside the storage area through a fixed rod, and the blanking assembly comprises: The blocking part is used to realize the discharge and stop of the material in the storage area, and the lower end of the blocking part is connected with the driving rod; The first and second strutting parts are arranged on the fixed rod, and the upper ends of the first and second strutting parts are hinged on the fixed rod; The first and second pushing parts are hinged on the upper end of the blocking part, and the first and second pushing parts are connected with the blocking part through a hinge rod, the lower end of the first pushing part is hinged with the lower end of the first strutting part, and the lower end of the second pushing part is hinged with the lower end of the second strutting part; The deformation part is arranged on the fixed rod and is sleeved outside the first and second strutting parts, and the deformation part forms a deformation area inside, The driving part pushes the driving rod to move downward, the driving rod drives the blocking part to move downward, the upper end of the blocking part drives the upper end of the first and second pushing parts to move downward, the first and second pushing parts push the lower end of the first and second strutting parts to move backward, and the deformation area is enlarged.

2. The intelligent control feeding system of a twin screw granulator as claimed in claim 1, wherein, One end of the fixed rod is provided with an air inlet hole, the fixed rod is provided with a plurality of air outlet holes and symmetrical air outlet ports, the air outlet holes are arranged in an up-down penetrating mode, and the air outlet ports are open toward the lower end.

3. The intelligent control feeding system of a twin screw granulator as claimed in claim 2, wherein, The air outlet holes are arranged outside the deformation part and located in the storage area, and the air outlet ports are arranged inside the deformation part.

4. The intelligent control feeding system of a twin screw granulator of claim 1, wherein, The blanking cylinder is composed of a cylinder body, a conical body and a blanking pipe, the conical body forms a folding area inside, and the blanking pipe forms a blanking hole in the middle.

5. The intelligent control feeding system of a twin screw granulator of claim 1, wherein, The deformation part is composed of a fixed part, a bridging part and a deformation part, the bridging part connects the fixed part and the deformation part, the fixed part is arranged on the fixed rod, the fixed part is made of hard plastic, and the bridging part and the deformation part are made of soft plastic.

6. The intelligent control feeding system of a twin screw granulator as claimed in claim 5 wherein, The inner wall of the deformation part is provided with a guide block, the guide block is provided with a guide arc surface, and the two sides of the hinge rod are provided with sliding arc surfaces matched with the guide arc surface.

7. The intelligent control feeding system of a twin screw granulator of claim 1, wherein, The first and second strutting parts are provided with hinge ports, and the arc angle of the hinge port is an optimal arc.

8. The intelligent control feeding system of a twin screw granulator as claimed in claim 7, wherein, The lower end of the first and second pushing parts is provided with a hinge end matched with the hinge port.

9. The intelligent control feeding system of a twin screw granulator of claim 1, wherein, The blocking part is composed of a pulling plate, a connecting plate and a blocking body, the pulling plate is hingedly connected with the first and second pushing parts, the connecting plate is provided with a first and a second dredging part, the blocking body is provided with an annular surface and a conical surface, the lower end of the blanking cylinder is provided with an elastic tube, and the blocking body is arranged in the elastic tube.

10. A method for intelligent control of feeding of a twin-screw granulator, using the intelligent control feeding system of the twin-screw granulator according to any one of claims 1 to 9, characterized in that, The utility model relates to a material discharging device, including: Step 1: pour the material to be used into the blanking cylinder, and inject gas into the fixed rod; Step 2: start the driving part, keep the driving part driving the driving rod to move downward, drive the blocking part to move downward through the driving rod, and keep the blocking part moving out of the elastic tube; Step 3: while the blocking piece is moving down, the upper end of the blocking piece drives the upper end of the first and second pushing pieces to move down, and the first pushing piece rotates at the lower end of the first spreading piece, and the second pushing piece rotates at the lower end of the second spreading piece; Step 4: while the first and second pushing pieces are rotating, the articulated rod moves down along the guide arc surface of the guide block, and the deformed piece is forced to deform outward by the first and second spreading pieces, so as to dredge the material in the folding area.

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