Thermoplastic remodeling device

Abstract

The utility model discloses a thermoplastic plastic remolding device, which relates to the technical field of plastic remolding, and comprises a heating melting mechanism, a cooling mechanism, a traction mechanism and a collecting mechanism which are arranged on a rack, a feed hopper is arranged at a feed port of the heating melting mechanism, a forming mechanism is arranged at a discharge port of the heating melting mechanism, and the collecting mechanism is arranged at the discharge port of the heating melting mechanism. And the heating and melting mechanism and the cooling mechanism are positioned above the traction mechanism and the collecting mechanism. The compact type structural design enables the device to be more suitable for being installed in a small working chamber, and installation cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of plastic remolding technology, and in particular to a thermoplastic plastic remolding device. Background Technology

[0002] Thermoplastics are widely used in packaging, construction, automotive, 3D printing, and electronics due to their excellent processing properties and reusability. However, with the continuous increase in the consumption of plastic products, the environmental pollution caused by waste plastics is becoming increasingly serious. Traditional landfill and incineration methods not only waste resources but also cause secondary pollution to the environment.

[0003] Thermoplastic remanufacturing technology is a process that reprocesses waste thermoplastics into plastic granules or 3D printing filaments through washing, crushing, melting, extrusion, cooling, molding, and collection. This technology can effectively solve the problem of waste plastic pollution, achieve resource recycling, and has significant economic and social benefits.

[0004] Currently, there are various thermoplastic remolding devices on the market, but they generally suffer from the following problems:

[0005] Poor product quality: Traditional devices use side-fan cooling or water cooling to cool the reshaped plastic wire, resulting in uneven dimensional accuracy after plastic molding. Water-cooled plastic also needs to be thoroughly dried after winding, leading to increased energy consumption.

[0006] The installation requirements for the device are relatively high: In order to allow the reshaped plastic filament to cool completely before winding, traditional devices usually have a longer winding distance, resulting in generally longer devices that are difficult to install in small studios. Utility Model Content

[0007] In order to solve the problems mentioned in the background art, the present invention provides a thermoplastic reshaping device.

[0008] The present invention provides a thermoplastic reshaping device, which adopts the following technical solution:

[0009] A thermoplastic reshaping apparatus includes a heating and melting mechanism, a cooling mechanism, a traction mechanism, and a collecting mechanism mounted on a frame. The heating and melting mechanism has a feed hopper at its inlet and a forming mechanism at its outlet. The heating and melting mechanism and the cooling mechanism are located above the traction and collecting mechanisms.

[0010] The feed hopper is used to store the plastic to be reshaped and to continuously supply material to the heating and melting mechanism;

[0011] The heating and melting mechanism is used to heat and melt plastic;

[0012] The molding mechanism is used to reshape the heated and melted plastic.

[0013] The cooling mechanism is used to cool the reshaped plastic wire.

[0014] The traction mechanism is used to adjust the wire size and guide the wire during the traction process;

[0015] The collecting mechanism is used to wind the reshaped wire into a coil.

[0016] In any of the above embodiments, it is preferred that the heating and melting mechanism includes a heating sleeve mounted on a frame via a base, a fixing block mounted on the heating sleeve, a feed hopper mounted on the fixing block, an extrusion screw mounted inside the heating sleeve, an extrusion motor mounted on the frame via a fixing seat, an output shaft of the extrusion motor connected to the extrusion screw via a coupling, and a heating aluminum block mounted on the outside of the heating sleeve.

[0017] In any of the above embodiments, it is preferred that the forming mechanism includes internal and external threaded nuts and an extrusion nozzle, wherein the internal and external threaded nuts are fixed to the end of the heating sleeve by external threads, and the extrusion nozzle is fixed to the end of the internal and external threaded nuts by threads.

[0018] In any of the above embodiments, the preferred embodiment is that the cooling mechanism includes an annular air duct support mounted on the frame, an annular air duct cover plate is fixedly installed on one side of the annular air duct support, a fan mounting bracket is connected to the bottom of the annular air duct support through an air supply pipe, and a centrifugal fan is fixedly installed below the fan mounting bracket.

[0019] In any of the above embodiments, it is preferred that the traction mechanism includes a motor traction unit, a driven traction wheel, and a wire guiding mechanism mounted on the frame, wherein the wire passes through the motor traction unit, the driven traction wheel, and the wire guiding mechanism in sequence.

[0020] In any of the above embodiments, it is preferred that the motor traction unit includes a motor base, on which a single-axis geared motor is fixedly mounted, a traction motor cover is fixedly connected to the rear of the single-axis geared motor, and an integrated traction wheel is connected to the output shaft of the single-axis geared motor.

[0021] In any of the above embodiments, it is preferred that the number of driven traction wheels is three.

[0022] In any of the above embodiments, it is preferred that the wire guiding mechanism includes a base, on which a reduction motor and a slide rod are fixedly installed. The output shaft of the reduction motor is connected to a lead screw, and a flange is threaded onto the lead screw. A lifting plate is fixedly installed on the flange. A fisheye bearing and a sliding sleeve are fixedly installed on the lifting plate, and the sliding sleeve slides in cooperation with the slide rod. A cover plate is fixedly installed on the top of the base.

[0023] In any of the above embodiments, it is preferred that the collecting mechanism includes a take-up reel and a take-up motor, wherein the take-up reel is fixed to the output shaft of the take-up motor via a reel holder.

[0024] In summary, this utility model has at least one of the following beneficial technical effects:

[0025] 1. The compact design makes the unit more suitable for installation in small studios, reducing installation costs.

[0026] 2. The overall length of the device is shortened, the footprint is small, and it is easy to operate in a limited space.

[0027] 3. The annular air duct ensures uniform dimensional accuracy of the plastic after molding, significantly improving product quality. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the thermoplastic reshaping device of this utility model;

[0029] Figure 2 This is a schematic diagram of the internal structure of the feeding hopper and heating and melting mechanism of this utility model;

[0030] Figure 3 This is a schematic diagram of the internal structure of the molding mechanism of this utility model;

[0031] Figure 4 This is a schematic diagram of the cooling mechanism of this utility model;

[0032] Figure 5 This is a schematic diagram of the annular air duct support structure of this utility model;

[0033] Figure 6 This is a utility model Figure 5 A cross-sectional view along the AA direction;

[0034] Figure 7 This is a utility model Figure 1 Center view;

[0035] Figure 8 This is a schematic diagram of the wire guiding mechanism of this utility model;

[0036] Figure 9 This is a utility model Figure 8 Center view;

[0037] Figure 10 This is a schematic diagram of the structure of the motor traction unit of this utility model.

[0038] Figure label:

[0039] 1. Feed hopper;

[0040] 2. Heating and melting mechanism; 8. Heated aluminum block; 9. Extrusion screw; 10. Fixing block; 11. Base; 12. Coupling; 13. Extrusion motor; 14. Fixing seat; 17. Heating sleeve;

[0041] 3. Forming mechanism; 15. Extrusion nozzle; 16. Internal and external threaded nut;

[0042] 4. Cooling mechanism; 18. Fan mounting bracket; 19. Centrifugal fan; 20. Annular air duct bracket; 21. Annular air duct cover; 22. Air supply duct;

[0043] 5. Traction mechanism;

[0044] 23. Motor traction unit; 38. Motor mount; 39. Single-shaft geared motor; 40. Traction motor cover; 41. Integrated traction wheel;

[0045] 24. Bearing; 25. Driven traction wheel; 26. Shaft; 27. L-shaped frame;

[0046] 28. Wire guide mechanism; 31. Cover plate; 32. Base; 33. Slide rod; 34. Fish eye bearing; 30. Sliding sleeve; 35. Flange; 36. Gear motor; 37. Lifting plate;

[0047] 6. Control mechanism; 42. Power button; 43. Temperature control panel; 44. Motor speed adjustment knob;

[0048] 7. Collecting mechanism; 45. Rewinding tray; 46. Tray holder; 29. ​​Rewinding motor. Detailed Implementation

[0049] To make the technical solution and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0050] To better understand the above technical solutions, the following is in conjunction with the appendix. Figures 1-10 The present invention will be described in further detail below.

[0051] A thermoplastic reshaping apparatus includes a heating and melting mechanism 2, a cooling mechanism 4, a traction mechanism 5, and a collecting mechanism 7 mounted on a frame. A feed hopper 1 is installed at the inlet of the heating and melting mechanism 2, and a molding mechanism 3 is installed at the outlet of the heating and melting mechanism 2. The heating and melting mechanism 2 and the cooling mechanism 4 are located above the traction mechanism 5 and the collecting mechanism 7, wherein:

[0052] The feed hopper 1 is used to store the plastic to be reshaped and to continuously supply material to the heating and melting mechanism 2; the heating and melting mechanism 2 is used to heat and melt the plastic.

[0053] Molding mechanism 3 is used to reshape the heated and molten plastic.

[0054] Cooling mechanism 4 is used to cool the reshaped plastic wire, specifically as follows: Figures 4-6 As shown, the cooling mechanism 4 includes an annular air duct support 20 mounted on the frame. An annular air duct cover 21 is fixedly installed on one side of the annular air duct support 20. A fan mounting bracket 18 is connected to the bottom of the annular air duct support 20 through an air supply pipe 22. A centrifugal fan 19 is fixedly installed below the fan mounting bracket 18. The centrifugal fan 19 generates airflow when it works. The airflow enters the interior of the annular air duct support 20 through the air supply pipe 22 and is blown towards its central area through the annular air duct support 20. The annular air duct design, through the evenly distributed air duct structure, reduces the force exerted on the plastic wire by the airflow, ensuring product quality. The air guide formed inside the annular air duct support 20 is inclined. The annular air duct is set with an inclined air guide to improve the airflow guidance, reduce the loss of air force, and improve the cooling efficiency.

[0055] The traction mechanism 5 is used to adjust the wire size and guide the wire during the traction process;

[0056] The collecting mechanism 7 is used to wind the reshaped wire into a coil.

[0057] In some embodiments, the heating and melting mechanism 2 includes a heating sleeve 17 mounted on a frame via a base 11, a fixing block 10 mounted on the heating sleeve 17, a feed hopper 1 mounted on the fixing block 10, an extrusion screw 9 mounted inside the heating sleeve 17, the extrusion screw 9 being rotatably connected to the heating sleeve 17, an extrusion motor 13 mounted on the frame via a fixing seat 14, the output shaft of the extrusion motor 13 being connected to the extrusion screw 9 via a coupling 12, and two heating aluminum blocks 8 mounted on the outside of the heating sleeve 17, which are aligned vertically and fixedly installed. The heating aluminum blocks 8 heat the heating sleeve 17, and the pulverized thermoplastic enters the heating sleeve 17 through the feed hopper. The extrusion motor 13 drives the extrusion screw 9 to rotate via the coupling 12, and the extrusion screw 9 pushes the plastic to move. When the plastic passes through the area covered by the heating aluminum blocks 8, it is heated, reshaped, and extruded.

[0058] In some embodiments, the molding mechanism 3 includes an internal and external threaded nut 16 and an extrusion nozzle 15. The internal and external threaded nut 16 is fixed to the end of the heating sleeve 17 by external threads, and the extrusion nozzle 15 is fixed to the end of the internal and external threaded nut 16 by threads. The plastic after being heated and reshaped is extruded through the extrusion nozzle 15, and the desired shape is obtained based on the extrusion nozzle 15. With the cooperation of the internal and external threaded nut 16 and the extrusion nozzle 15, extrusion nozzles 15 with different diameters and shapes can be replaced.

[0059] In some embodiments, the traction mechanism 5 includes a motor traction unit 23 mounted on a frame, a driven traction wheel 25, and a wire guiding mechanism 28. The wire passes sequentially through the motor traction unit 23, the driven traction wheel 25, and the wire guiding mechanism 28. The motor traction unit 23 includes a motor base 38 mounted on the frame. A single-axis reduction motor 39 is fixedly mounted on the motor base 38. A traction motor cover 40 is fixedly connected to the rear of the single-axis reduction motor 39. An integrated traction wheel 41 is connected to the output shaft of the single-axis reduction motor 39, and the integrated traction wheel 41 is driven to rotate by the single-axis reduction motor 39. There are three driven traction wheels 25. Two of the driven traction wheels 25 are mounted on the frame via bearings 24 and shafts 26, and one of the driven traction wheels 25 is mounted on an L-shaped frame 27 via bearings 24 and shafts 26. The L-shaped frame 27 is mounted on the frame, and the wire guided by the integrated traction wheel 41 passes sequentially through the L-shaped frame 23, the driven traction wheel 25, and the wire guiding mechanism 28. After passing through three driven traction wheels 25, the direction of wire movement is changed. The wire guiding mechanism 28 includes a base 32, which is mounted on the frame. A geared motor 36 and a slide rod 33 are fixedly mounted on the base 32. The output shaft of the geared motor 36 is connected to a lead screw, and a flange 35 is threaded onto the lead screw. A lifting plate 37 is fixedly mounted on the flange 35. A fisheye bearing 34 and a sliding sleeve 30 are fixedly mounted on the lifting plate 37. The sliding sleeve 30 and the slide rod 33 slide together. A cover plate 31 is fixedly mounted on the top of the base 32. After passing through the center hole of the fisheye bearing 34, the wire is wound up by the collecting mechanism 7. The position of the fisheye bearing 34 can be adjusted under the drive of the geared motor 36. Specifically, the geared motor 36 drives the lead screw to rotate, which drives the flange 35 to move. Since the sliding sleeve 30 and the slide rod 33 cooperate to form a guide limit, the lifting plate 37 is forced to move linearly, which can change the height position of the fisheye bearing 34.

[0060] This device adopts a double-layer design. The upper layer is mainly used for reshaping and cooling, while the lower layer is used for collection. The driven traction wheels 25 are arranged in a C-shape on the left side of the device, which tightly connects the upper and lower layers together, enabling the wire to achieve a turning effect when winding, shortening the total length of the device, while maintaining a suitable winding distance.

[0061] In some embodiments, the collecting mechanism 7 includes a take-up reel 45 and a take-up motor 29. The take-up reel 45 is fixed to the output shaft of the take-up motor 29 by a reel holder 46. The take-up motor 29 is mounted on the frame and drives the take-up reel 45 to rotate, thereby completing the wire winding operation.

[0062] The device also has a control mechanism 6, which includes a power button 42. A temperature control adjustment panel 43 and a motor speed adjustment knob 44 are respectively installed on the right side of the power button 42. The power switch is used to turn the entire device on and off, while the temperature control adjustment panel 43 adjusts the heating aluminum block 8, and the motor speed adjustment knob 44 controls the motor in the device.

[0063] Working principle: The crushed thermoplastic is fed into the hopper 1 and falls into the heating sleeve 17. The extrusion motor 13 drives the extrusion screw 9 to rotate through the coupling 12, pushing the material to the heating aluminum block 8 area on the left. After being heated and reshaped, the material is pushed to the forming mechanism 3 by the extrusion screw 9 and extruded into wires of different sizes through the extrusion nozzle 15. The extruded wires pass through the annular heat dissipation channel on the left. After being cooled by the annular heat dissipation channel, the wires are pulled to the traction mechanism 5 and hung on the upper side wall of the integrated traction wheel 41. Then, the wires are pulled to the driven traction wheel 25 by the traction mechanism and introduced into the wire guide mechanism 28. The wires pass through the center of the fisheye bearing 34 and are finally introduced into the collection mechanism 7 to wind up the wires.

[0064] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A thermoplastic reshaping apparatus, characterized in that: The system includes a heating and melting mechanism (2), a cooling mechanism (4), a traction mechanism (5), and a collecting mechanism (7) mounted on a frame. The heating and melting mechanism (2) has a feed hopper (1) at its inlet and a forming mechanism (3) at its outlet. The heating and melting mechanism (2) and the cooling mechanism (4) are located above the traction mechanism (5) and the collecting mechanism (7). The feed hopper (1) is used to store the plastic to be reshaped and to continuously supply material to the heating and melting mechanism (2); The heating and melting mechanism (2) is used to heat and melt the plastic; The molding mechanism (3) is used to reshape the heated and melted plastic. The cooling mechanism (4) is used to cool the reshaped plastic wire; The traction mechanism (5) is used to adjust the wire size and guide the wire during the traction process; The collecting mechanism (7) is used to wind the reshaped wire into a coil.

2. The thermoplastic reshaping apparatus according to claim 1, characterized in that: The heating and melting mechanism (2) includes a heating sleeve (17) mounted on the frame via a base (11), a fixing block (10) mounted on the heating sleeve (17), a feed hopper (1) mounted on the fixing block (10), an extrusion screw (9) mounted inside the heating sleeve (17), an extrusion motor (13) mounted on the frame via a fixing seat (14), the output shaft of the extrusion motor (13) being connected to the extrusion screw (9) via a coupling (12), and a heating aluminum block (8) mounted on the outside of the heating sleeve (17).

3. The thermoplastic reshaping apparatus according to claim 2, characterized in that: The forming mechanism (3) includes an internal and external threaded nut (16) and an extrusion nozzle (15). The internal and external threaded nut (16) is fixed to the end of the heating sleeve (17) by external thread, and the extrusion nozzle (15) is fixed to the end of the internal and external threaded nut (16) by thread.

4. The thermoplastic reshaping apparatus according to claim 1, characterized in that: The cooling mechanism (4) includes an annular air duct support (20) mounted on the frame. An annular air duct cover plate (21) is fixedly installed on one side of the annular air duct support (20). A fan fixing bracket (18) is connected to the bottom of the annular air duct support (20) through an air supply pipe (22). A centrifugal fan (19) is fixedly installed below the fan fixing bracket (18).

5. The thermoplastic reshaping apparatus according to claim 1, characterized in that: The traction mechanism (5) includes a motor traction unit (23), a driven traction wheel (25), and a wire guide mechanism (28) mounted on the frame, wherein the wire passes through the motor traction unit (23), the driven traction wheel (25), and the wire guide mechanism (28) in sequence.

6. The thermoplastic reshaping apparatus according to claim 5, characterized in that: The motor traction unit (23) includes a motor base (38), on which a single-axis geared motor (39) is fixedly installed. A traction motor cover (40) is fixedly connected to the rear of the single-axis geared motor (39), and an integrated traction wheel (41) is connected to the output shaft of the single-axis geared motor (39).

7. A thermoplastic reshaping apparatus according to claim 6, characterized in that: The number of the driven traction wheels (25) is three.

8. The thermoplastic reshaping apparatus according to claim 7, characterized in that: The wire guiding mechanism (28) includes a base (32), on which a geared motor (36) and a slide rod (33) are fixedly installed. The output shaft of the geared motor (36) is connected to a lead screw, and a flange (35) is threaded onto the lead screw. A lifting plate (37) is fixedly installed on the flange (35). A fisheye bearing (34) and a sliding sleeve (30) are fixedly installed on the lifting plate (37). The sliding sleeve (30) and the slide rod (33) slide together. A cover plate (31) is fixedly installed on the top of the base (32).

9. A thermoplastic reshaping apparatus according to claim 8, characterized in that: The collecting mechanism (7) includes a take-up reel (45) and a take-up motor (29). The take-up reel (45) is fixed to the output shaft of the take-up motor (29) by a reel holder (46).

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