Optimization device of double-screw plastic modification granulator
By designing an adjustable screw gap and automatic exhaust system in a twin-screw plastic modification granulator, the existing equipment has insufficient adaptability to different plastic materials and improper gas treatment, achieving more efficient plastic treatment and better product performance.
Patent Information
- Application Number
- CN202422068688.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-08-26
AI Technical Summary
The existing twin-screw plastic modified granulators cannot adjust the screw spacing and cannot perform automatic exhaust, resulting in insufficient adaptability to different types and viscosity plastic materials, affecting the melting and mixing effects, and may lead to a decrease in product density and mechanical properties.
A twin-screw plastic modified granulator optimization device is designed to achieve adjustability of screw clearance through the combination of collar and threaded rod, and an automatic exhaust component is set up in the heating cylinder. The design of airbags and Tesla tubes is used to achieve automatic gas discharge and noise reduction.
Through adjustable screw clearance, precise control of the mixing and processing of plastic particles is improved, and the melting, dispersion and mixing effect is improved; the automatic exhaust system reduces gas residue in the plastic melt, improves product density and mechanical properties, and reduces operational complexity and noise.
Smart Images
Figure CN222844728U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to an optimization device for a twin-screw plastic modified granulator. Background Art
[0002] Twin-screw plastic modification granulator is a kind of equipment used for plastic modification and granulation, especially suitable for processing and modifying plastic materials with high viscosity and high melt index. It mixes, melts, modifies and granulates plastic raw materials in a high temperature and high shear environment through the synergistic effect of twin screws.
[0003] A key point in improving the performance of twin-screw plastic modification granulators is to optimize the design and adjustment mechanism of the screw. The screw is the core component in the granulator, responsible for mixing and advancing the heated plastic material. The gap of the screw in traditional equipment is usually fixed, which limits the machine's adaptability to plastic materials of different types and viscosities. Therefore, a granulator with adjustable screw gap can more accurately control the residence time and heating uniformity of the material in the barrel, thereby improving the melting and mixing effect, which is essential for producing high-quality plastic granules.
[0004] Another issue that needs attention is the treatment of gases during the granulation process. During the plastic melting process, gases may be generated or released inside the material. If not handled properly, these gases will affect the density and mechanical properties of the final product and may even cause environmental pollution. Therefore, designing an exhaust system that can effectively exhaust these gases while reducing noise and operating complexity is of great significance for improving product quality and environmental protection. To this end, in response to the above problems, a twin-screw plastic modified granulator optimization device is proposed to solve the above problems. Utility Model Content
[0005] In order to make up for the above shortcomings, the utility model provides a twin-screw plastic modified granulator optimization device, aiming to improve the problem that some existing twin-screw granulators in the prior art cannot adjust the screw spacing and cannot perform automatic exhaust.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] The optimization device of a twin-screw plastic modified granulator comprises a control box, a support shell is fixedly connected to the right side of the top of the control box, a heating cylinder is fixedly connected to the left side of the inside of the support shell, an adjusting port is opened on the right side of the heating cylinder, a motor is fixedly connected to the front side of the support shell, a gear cylinder is fixedly connected to the driving end of the motor, a screw rod 1 is rotatably connected to the inside of the adjusting port, a slave gear disc 1 is fixedly connected to the right side of the screw rod 1, a screw rod 2 is rotatably connected to the inside of the adjusting port, a slave gear disc 2 is fixedly connected to the right side of the screw rod 2, a collar is arranged on the outside of the right side of the screw rod 2, a threaded rod is movably connected to the outside of the collar, a turntable is fixedly connected to one end of the threaded rod away from the collar, and an exhaust component for automatically exhausting the gas in the heating cylinder is arranged on the top of the heating cylinder;
[0008] As a further description of the above technical solution:
[0009] The exhaust assembly includes two punching bags, the bottom ends of the two punching bags are externally fixedly connected to the left top end of the heating tube, the top end of the punching bags is fixedly connected to a top cover, the middle inner wall of the punching bags is fixedly connected to a positioning ring, the middle inner wall of the punching bags is provided with an isolation plate, the middle of the top end of the isolation plate is fixedly connected to a connecting rod, the top end of the connecting rod is fixedly connected to an air bag, the outer sleeve of the connecting rod is provided with a spring, and the middle of the rear side of the top cover is fixedly connected to a Tesla tube;
[0010] As a further description of the above technical solution:
[0011] A feeding cylinder is fixedly connected to the middle of the top of the heating cylinder, a cooling cylinder is fixedly connected to the left side of the heating cylinder, and a pelletizer component is fixedly connected to the left side of the cooling cylinder;
[0012] As a further description of the above technical solution:
[0013] The right end of the screw rod 1 is externally rotatably connected to the middle inner wall of the sleeve ring, and the right teeth of the secondary gear disc 1 are meshingly connected with the outside of the gear cylinder;
[0014] As a further description of the above technical solution:
[0015] The left teeth of the second secondary gear disc are meshed with the outside of the gear cylinder, and the outer thread of the threaded rod is threadedly connected to the front and rear sides of the right end of the heating cylinder;
[0016] As a further description of the above technical solution:
[0017] The outer thread of the threaded rod is connected to the front and rear ends of the left side of the support shell, and the outer front side of the gear cylinder is rotatably connected to the middle part of the front side of the heating cylinder;
[0018] As a further description of the above technical solution:
[0019] The bottom end of the heating tube is fixedly connected to the top end of the control box, and the outside of the airbag is in contact with the inner wall of the top end of the punching tube;
[0020] As a further description of the above technical solution:
[0021] The outer bottom end of the airbag contacts the top end of the positioning ring, one end of the spring is fixedly connected to the bottom end of the positioning ring, and one end of the spring is fixedly connected to the top end of the isolation plate.
[0022] The utility model has the following beneficial effects:
[0023] 1. In the utility model, two sleeves are respectively sleeved on the left side of the second screw and the first screw, so that the user can drive the threaded rod to push the gap between the second screw and the first screw to increase or decrease by rotating the turntable, and the gear cylinder is driven by the motor, and the gear cylinder meshes with the second fixed slave gear disk of the second screw and the first fixed slave gear disk of the first screw, so that the mixing and processing process of the plastic particles in the screw can be accurately controlled by adjusting the gap between the screws. Different gap settings can affect the residence time and heating uniformity of the plastic in the barrel, which is helpful to optimize the melting, dispersion and mixing effects of the plastic.
[0024] 2. In the utility model, the gas generated by the melted plastic particles in the heating tube squeezes the isolation plate, and the isolation plate pushes the airbag through the connecting rod to open the conical groove opening of the outlet tube, so that the gas can automatically flow along the external gap of the airbag to the channel surrounding the Tesla tube on the top cover and be discharged, thereby reducing the residual gas in the plastic melt, which helps to improve the density and mechanical properties of the final product. The special channel design of the Tesla tube can accelerate the outflow of gas and silence the gas. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a three-dimensional schematic diagram of the optimization device of the twin-screw plastic modification granulator proposed by the utility model;
[0026] Figure 2 This is a structural schematic diagram of the Tesla tube of the twin-screw plastic modification granulator optimization device proposed in the utility model;
[0027] Figure 3 This is a schematic diagram of the structure of the gear barrel of the twin-screw plastic modified granulator optimization device proposed in the utility model;
[0028] Figure 4 This is a structural schematic diagram of the top cover of the twin-screw plastic modification granulator optimization device proposed in the utility model.
[0029] Legend:
[0030] 1. Control box; 2. Support shell; 3. Heating cylinder; 4. Adjustment port; 5. Motor; 6. Gear cylinder; 7. Screw 1; 8. Sprocket 1; 9. Screw 2; 10. Sprocket 2; 11. Ring; 12. Threaded rod; 13. Turntable; 14. Exhaust bag; 15. Top cover; 16. Positioning ring; 17. Isolation plate; 18. Connecting rod; 19. Air bag; 20. Spring; 21. Tesla tube; 22. Feeding cylinder; 23. Cooling cylinder; 24. Pellet cutter parts. DETAILED DESCRIPTION
[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0032] Reference Figures 1 to 3 The utility model provides an embodiment: a twin-screw plastic modified granulator optimization device, including a control box 1, a support shell 2 is fixedly connected to the right side of the top of the control box 1, a heating cylinder 3 is fixedly connected to the left side inside the support shell 2, and the bottom end of the heating cylinder 3 is fixedly connected to the top of the control box 1. The control box 1 serves as the control center of the entire device. The support shell 2 fixedly connected on the right side provides support for the heating cylinder 3. The heating cylinder 3 is located at the bottom end of the support shell 2 and is fixedly connected to the top of the control box 1.
[0033] An adjustment port 4 is provided on the right side of the heating cylinder 3, and the adjustment port 4 leaves adjustable space for the components of the inner wall. A motor 5 is fixedly connected to the front side of the support shell 2, and a gear cylinder 6 is fixedly connected to the driving end of the motor 5. The outer front side of the gear cylinder 6 is rotatably connected to the middle of the front side of the heating cylinder 3. The motor 5 provides driving power, and the power is transmitted to the gear system on the front side of the heating cylinder 3 through the gear cylinder 6.
[0034] refer to Figure 2 The middle of the top of the heating cylinder 3 is fixedly connected with a feed cylinder 22. The heating cylinder 3 (or heating tube) is used to heat the extruded material during the granulation process. The heating cylinder is heated by electricity or hot oil to ensure that the material reaches the appropriate temperature and fluidity during the extrusion process. The heating cylinder is usually composed of two layers, the inner layer is the actual heating surface, and the outer layer may be an insulating layer. The feed cylinder 22 is used to feed plastic particles.
[0035] The left side of the heating cylinder 3 is fixedly connected with a cooling cylinder 23, and the cooling cylinder 23 (or cooling tube) is used to cool the extruded material to the solidification temperature. The cooling cylinder reduces the temperature of the material by cooling water, air or other cooling media, so that it can quickly solidify and form particles after extrusion. The left side of the cooling cylinder 23 is fixedly connected with a pelletizer component 24, which is a component used to cut the extruded material into particles. The configuration of the pelletizer may be fixed or rotating, depending on the type of pelletizer. Common pelletizing methods include intermittent cutting and continuous cutting.
[0036] refer to Figure 3 The inside of the adjusting port 4 is rotatably connected to a screw 17, and the right side of the screw 17 is fixedly connected to a slave gear disc 18, and the right side teeth of the slave gear disc 18 are meshingly connected to the outside of the gear cylinder 6. The inside of the adjusting port 4 is rotatably connected to a screw 29, and the adjusting port 4 provides a channel for adjusting the spacing between the screws 7 and 9, ensuring that the equipment can be adjusted as needed during operation. The right side of the screw 29 is fixedly connected to a slave gear disc 20, and the left side teeth of the slave gear disc 20 10 are meshingly connected to the outside of the gear cylinder 6. The gear cylinder 6 meshes with the slave gear discs of the screws 7 and 9, so that the two can rotate synchronously, thereby optimizing the transmission and processing of plastic particles.
[0037] A collar 11 is arranged on the right side of the screw 2 9, the right end of the screw 1 7 is externally rotatably connected to the middle inner wall of the collar 11, the screw 2 9 is rotated on the middle inner wall of the collar 11, the outside of the collar 11 is movably connected with a threaded rod 12, one end of the threaded rod 12 is arranged on the outside of the collar and rotates at a fixed position, the collar 11 and the threaded rod 12 allow the position of the screw to be precisely adjusted during the adjustment process, thereby optimizing the mixing and processing of the plastic particles.
[0038] The external threads of the threaded rod 12 are connected to the front and rear sides of the right end of the heating tube 3, and the external threads of the threaded rod 12 are connected to the front and rear ends of the left side of the supporting shell 2. The end of the threaded rod 12 away from the ring 11 is fixedly connected to a turntable 13, so that the stable rotation of the threaded rod 12 drives the screw 1 7 and the screw 2 9 to move. The top of the heating tube 3 is provided with an exhaust component for automatically exhausting the gas in the heating tube 3.
[0039] refer to Figure 1 , Figure 4The exhaust assembly includes two air outlets 14. The bottom ends of the two air outlets 14 are externally fixedly connected to the left top end of the heating tube 3. The top end of the air outlet 14 is fixedly connected with a top cover 15. The air outlet 14 and the top cover 15 are designed with a double air outlet system to effectively discharge gas and reduce the resistance and noise when the gas is discharged. The middle inner wall of the air outlet 14 is fixedly connected with a positioning ring 16. The middle inner wall of the air outlet 14 is provided with an isolation plate 17. The middle of the top of the isolation plate 17 is fixedly connected with a connecting rod 18. The top of the connecting rod 18 is fixedly connected with an air bag 19. The isolation plate 17 and the air bag 19 cooperate with the isolation plate and the air bag to ensure the effective discharge of gas and automatically adjust the exhaust volume. The outside of the air bag 19 contacts the top inner wall of the air outlet 14, and the outer bottom of the air bag 19 contacts the top of the positioning ring 16. The air bag 19 effectively blocks the top outlet of the air outlet 14.
[0040] The outer sleeve of the connecting rod 18 is provided with a spring 20, one end of the spring 20 is fixedly connected to the bottom end of the positioning ring 16, and one end of the spring 20 is fixedly connected to the top end of the isolation plate 17. The elastic potential energy of the spring 20 can pull the isolation plate 17 to reset. A Tesla tube 21 is fixedly connected to the middle of the rear side of the top cover 15. The gas channel of the Tesla tube 21 adopts a fluid dynamics optimization design, and there are multiple streamlined cross shapes in the channel. This design can reduce the resistance to gas flow, thereby improving the speed and efficiency of gas flow, while reducing noise.
[0041] Working principle: When the user needs to adjust the spacing between 7 and 9, the user can rotate 13 to drive 12 threads to rotate at the corresponding horizontal positions of the shells of 2 and 3, and the sleeve 11 connected by 12 is arranged on the outside of the right ends of 9 and 7, so that when 12 rotates toward the inner wall of 3, 9 and 7 can be driven to get closer. At this time, since the outside of 6 is in the shape of a long groove tooth, and the left teeth of 10 of 9 slide on the outside of 6 and engage in the groove of 6, similarly, the right teeth of 8 slide on the outside of 6 and engage in the groove of 6, so when 1 starts through signal control 5, 5 can drive 6 to rotate, and 6 engages with 10 and 8 through the outside to rotate 9 and 8, so that 9 fixed by 10 and 7 fixed by 8 can rotate synchronously, and the plastic raw materials discharged by 22 are evenly transmitted, and the mixing and processing process of plastic particles in the screw is accurately controlled, thereby optimizing the melting, dispersion and mixing effects of plastics.
[0042] Since 3 has a plus effect, when the plastic particles falling in 22 are driven by 7 and 9 rotating inside 3, the plastic particles will move to the left along the external threads of 7 and 9 and be heated by 3 to melt. At this time, since the plastic contains moisture or volatile substances, the heated and melted plastic particles will generate gas inside 3. When the gas overflows 3, it will squeeze 17 set in 14 fixed to 3, so that 17 is impacted upward by the gas and synchronously drives 19 to open the opening of the conical groove at the top of 14 upward, so that the gas cylinder can flow into 15 through the external gap of 19, and then flow from 15 to 21, and quickly flow out along the gas channel of 21. When the gas passes through 21, since the channel 21 may adopt a fluid dynamics optimization design, composed of a plurality of streamlined channel shapes intersecting, such a curved surface that reduces resistance, the flow speed and efficiency of the plastic particle gas can be improved, and the noise generated by the gas flow can be reduced.
[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A twin-screw plastic modified granulator optimization device, comprising a control box (1), characterized in that: The right side of the top of the control box (1) is fixedly connected to a support shell (2), the left side of the interior of the support shell (2) is fixedly connected to a heating cylinder (3), the right side of the heating cylinder (3) is provided with an adjustment port (4), the front side of the support shell (2) is fixedly connected to a motor (5), the driving end of the motor (5) is fixedly connected to a gear cylinder (6), the interior of the adjustment port (4) is rotatably connected to a screw rod (7), the right side of the screw rod (7) is fixedly connected to a secondary gear disc (8), the interior of the adjustment port (4) is rotatably connected to a screw rod (9), the right side of the screw rod (9) is fixedly connected to a secondary gear disc (10), a collar (11) is provided on the outside of the right side of the screw rod (9), a threaded rod (12) is movably connected to the outside of the collar (11), and a rotating disk (13) is fixedly connected to the end of the threaded rod (12) away from the collar (11), and the top of the heating cylinder (3) is provided with an exhaust component for automatically exhausting gas in the heating cylinder (3).
2. The twin-screw plastic modification granulator optimization device according to claim 1, characterized in that: The exhaust assembly comprises two exhaust pipes (14), the bottom ends of the two exhaust pipes (14) are externally fixedly connected to the left top end of the heating pipe (3), the top end of the exhaust pipe (14) is fixedly connected to a top cover (15), the middle inner wall of the exhaust pipe (14) is fixedly connected to a positioning ring (16), the middle inner wall of the exhaust pipe (14) is provided with an isolation plate (17), the middle of the top end of the isolation plate (17) is fixedly connected to a connecting rod (18), the top end of the connecting rod (18) is fixedly connected to an air bag (19), the outer sleeve of the connecting rod (18) is provided with a spring (20), and the middle of the rear side of the top cover (15) is fixedly connected to a Tesla tube (21).
3. The twin-screw plastic modification granulator optimization device according to claim 1, characterized in that: A feeding cylinder (22) is fixedly connected to the middle of the top end of the heating cylinder (3), a cooling cylinder (23) is fixedly connected to the left side of the heating cylinder (3), and a pelletizing knife component (24) is fixedly connected to the left side of the cooling cylinder (23).
4. The twin-screw plastic modification granulator optimization device according to claim 1 is characterized in that: The right end of the screw rod 1 (7) is externally rotatably connected to the middle inner wall of the collar (11), and the right teeth of the secondary gear disc 1 (8) are meshingly connected to the outside of the gear cylinder (6).
5. The twin-screw plastic modification granulator optimization device according to claim 1 is characterized in that: The left teeth of the second toothed disc (10) are meshedly connected to the outside of the toothed cylinder (6), and the outer thread of the threaded rod (12) is threadedly connected to the front and rear sides of the right end of the heating cylinder (3).
6. The twin-screw plastic modification granulator optimization device according to claim 1, characterized in that: The external threads of the threaded rod (12) are connected to the front and rear ends of the left side of the support shell (2), and the external front side of the gear cylinder (6) is rotatably connected to the middle part of the front side of the heating cylinder (3).
7. The twin-screw plastic modification granulator optimization device according to claim 2, characterized in that: The bottom end of the heating tube (3) is fixedly connected to the top end of the control box (1), and the outside of the air bag (19) is in contact with the inner wall of the top end of the air outlet tube (14).
8. The twin-screw plastic modification granulator optimization device according to claim 2, characterized in that: The outer bottom end of the airbag (19) contacts the top end of the positioning ring (16), one end of the spring (20) is fixedly connected to the bottom end of the positioning ring (16), and one end of the spring (20) is fixedly connected to the top end of the isolation plate (17).