A plastic recycling device for facilitating 3D printing consumable production

Abstract

The utility model provides a kind of be favorable to 3D printing consumable production's plastic recycling device, belong to plastic recycling technical field. Including pulverization bin, the bottom of pulverization bin is equipped with mixing box, between the upper portion of mixing box inboard wall rotationally connected with camshaft, and the top of camshaft is equipped with screen plate;Between the lower portion of mixing box inboard wall rotationally connected with stirring rod, and the upper portion of mixing box one side wall is equipped with inlet pipe, and the top of inlet pipe is equipped with color masterbatch hopper.The utility model meets the small particle broken plastic of wire drawing requirement and falls into mixing box inner lower portion by the sieve hole of screen plate, opens flow control valve so that color masterbatch in color masterbatch hopper is added into mixing box, and stirring rod rotation can sufficiently mix broken plastic particle and dark color color masterbatch, realize the large particle broken plastic that does not meet wire drawing requirement is separated, it is favorable to the wire drawing work of 3D consumable wire drawing machine afterwards, also need not manual operation to mix the broken plastic particle and dark color color masterbatch that collection recovery, more time-saving and labor-saving.

Description

Technical Field

[0001] This utility model provides a plastic recycling device that is beneficial to the production of 3D printing consumables, belonging to the field of plastic recycling technology. Background Technology

[0002] 3D printing material recycling refers to the process of recycling and reusing waste or unused materials generated during the 3D printing process. 3D printing technology, as an additive manufacturing technology, creates objects by layering materials, often generating a large amount of leftover material and failed prints. If these waste materials are not properly disposed of, they will not only waste resources but may also pollute the environment. For plastic consumables, a common method is to use a plastic crushing and recycling device to crush waste plastic materials into small plastic particles, and then use a 3D filament drawing machine to reconstitute the plastic particles mixed with dark-colored masterbatch into 3D printing filaments.

[0003] Existing plastic crushing and recycling devices can generally meet normal usage needs, but after crushing, manual operation is often required to mix the collected plastic fragments with dark-colored masterbatch, which is not time-saving or labor-saving. Furthermore, since some waste plastic may inevitably not be fully crushed during the crushing process, the finished product may contain a certain amount of large plastic fragments, which is detrimental to the subsequent 3D printing filament drawing process. Therefore, this invention provides a plastic recycling device that is beneficial for the production of 3D printing filaments. Utility Model Content

[0004] The technical problem solved by this utility model is that: it requires manual operation to mix crushed plastic particles with dark masterbatch, which is not time-saving or labor-saving enough, and the finished product after crushing may also contain a certain amount of large crushed plastic particles, which is not conducive to the subsequent 3D consumable drawing machine to perform the drawing work.

[0005] To solve the technical problem, the technical solution provided by this utility model is as follows: a plastic recycling device that is beneficial to the production of 3D printing consumables, including a crushing chamber, a crushing roller that is rotatably connected between the lower part of the inner sidewall of the crushing chamber, a mixing box at the bottom of the crushing chamber, a camshaft that is rotatably connected between the upper part of the inner sidewall of the mixing box near the crushing chamber, and a screen plate that is inclined for screening crushed plastic at the top of the camshaft.

[0006] A stirring rod is rotatably connected between the lower parts of the inner sidewalls of the mixing box. An inlet pipe is provided on the upper part of one sidewall of the mixing box, which is located below the screen plate. A color masterbatch hopper is provided at the top of the inlet pipe.

[0007] A drive assembly is provided between the crushing roller, the camshaft, and the stirring rod.

[0008] Furthermore, the drive assembly includes a motor fixedly mounted on an outer wall of the crushing chamber, and rotating rods rotatably connected to the side walls of the crushing chamber on both sides of the crushing roller. The output end of the motor is fixedly connected to the end of one of the rotating rods on one side, and gears meshing with each other are provided on the rod bodies of the other two rotating rods that extend out of the crushing chamber.

[0009] Furthermore, the drive assembly also includes a driven pulley fixedly mounted on the camshaft and the end of the stirring rod that extends out of the grinding chamber, and a main pulley located outside the grinding chamber on one of the rotating rods on the other side, with a matching synchronous belt between the main pulley and the driven pulley.

[0010] Furthermore, the mixing box has an inlet connected to the crushing chamber on the side of the top of the mixing box near the upper end of the screen plate, and a discharge hopper is provided at the bottom of the mixing box, with an electric slide valve on the discharge hopper.

[0011] Furthermore, the outer wall of the color masterbatch hopper is provided with scale lines, the inlet pipe is provided with a flow control valve, and the stirring rod is provided with a number of stirring blades at equal intervals.

[0012] Furthermore, the upper part of one side wall of the mixing box is provided with a discharge port that is rotatably connected to the bottom of the inclined lower end of the screen plate, and the side wall of the mixing box is provided with a discharge hopper placed outside the discharge port.

[0013] Furthermore, the inclination angle of the screen plate is 10°-20°, and a rotating shaft is provided between the bottom of the discharge port and the bottom of the lower inclined end of the screen plate.

[0014] The beneficial effects of this utility model are:

[0015] The drive assembly rotates the crushing roller, camshaft, and stirring rod. The crushing roller crushes the waste plastic, and the small plastic fragments that meet the requirements for drawing fall through the screen holes into the lower part of the mixing box. By opening the flow control valve, the dark masterbatch granules in the masterbatch hopper are added to the mixing box. The stirring rod rotates to fully mix the plastic fragments that fall into the lower part of the mixing box with the dark masterbatch granules. This separates the large plastic fragments that do not meet the requirements for drawing, which is beneficial for the subsequent drawing work of the 3D consumable drawing machine. It also eliminates the need for manual operation to mix the collected plastic fragments with the dark masterbatch granules, saving time and effort. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0018] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 .

[0019] Figure 4 This is a schematic diagram of the structure of the present invention. Figure 4 .

[0020] Figure 5 This is a plan view of the present invention.

[0021] 1. Crushing chamber; 2. Crushing roller; 3. Mixing box; 4. Camshaft; 5. Screen plate; 6. Stirring rod; 7. Inlet pipe; 8. Masterbatch hopper; 9. Drive assembly; 10. Motor; 11. Rotating rod; 12. Gear; 13. Main pulley; 14. Driven pulley; 15. Synchronous belt; 16. Inlet; 17. Discharge hopper; 18. Electric slide gate valve; 19. Scale line; 20. Flow control valve; 21. Impurity discharge port; 22. Discharge hopper; 23. Rotating shaft. Detailed Implementation

[0022] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0023] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0024] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0025] According to the appendix Figure 1 , 4As shown: This utility model provides a plastic recycling device that is beneficial to the production of 3D printing consumables: it includes a crushing chamber 1, a mixing box 3 at the bottom of the crushing chamber 1, a camshaft 4 rotatably connected to the upper part of the inner side wall of the mixing box 3 near the crushing chamber 1, a screen plate 5 inclined for screening crushed plastic at the top of the camshaft 4, a discharge port 21 rotatably connected to the bottom of the inclined lower end of the screen plate 5 on the upper part of one side wall of the mixing box 3, a discharge hopper 22 located outside the discharge port 21 on the side wall of the mixing box 3, the inclination angle of the screen plate 5 is 10°-20°, and the bottom of the discharge port 21 is connected to the screen plate A rotating shaft 23 is provided between the bottom of the 5 inclined ends to ensure that the screen plate 5 can reciprocate and vibrate. Specifically, the screen plate 5 is used for screening. Small plastic fragments that meet the requirements for wire drawing fall into the lower part of the mixing box 3 through the screen holes of the screen plate 5. The camshaft 4 rotates to drive the upper inclined end of the screen plate 5 to rise and fall back and forth. Under the action of the rotating shaft 23, the screen plate 5 can then vibrate in a fan shape, effectively preventing plastic fragments from clogging the screen holes of the screen plate 5. Large plastic fragments that do not meet the requirements for wire drawing and remain on the top of the screen plate 5 slide down obliquely and are discharged from the mixing box 3 through the discharge port 21 and the discharge hopper 22.

[0026] As per the instruction manual Figure 3 , 4 As shown: A stirring rod 6 is rotatably connected between the lower inner walls of the mixing tank 3. An inlet pipe 7 is provided on the upper side wall of the mixing tank 3, located below the screen plate 5. A color masterbatch hopper 8 is provided at the top of the inlet pipe 7. A scale line 19 is provided on the outer wall of the color masterbatch hopper 8. A flow control valve 20 is provided on the inlet pipe 7. Several stirring blades are evenly spaced on the rod of the stirring rod 6. Specifically, an appropriate amount of dark color masterbatch granules is added to the color masterbatch hopper 8. The flow control valve 20 is opened, and the dark color masterbatch granules in the color masterbatch hopper 8 are added into the mixing tank 3 through the inlet pipe 7. The stirring rod 6 rotates, driving the stirring blades to rotate, which can fully mix the crushed plastic particles falling into the lower part of the mixing tank 3 with the dark color masterbatch granules.

[0027] As per the instruction manual Figure 4 , 5As shown: The lower part of the inner wall of the crushing chamber 1 is rotatably connected to the crushing roller 2. The top of the mixing box 3 is provided with an inlet 16 connected to the crushing chamber 1 on the side near the upper end of the screen plate 5. The bottom of the mixing box 3 is provided with a discharge hopper 17, and the discharge hopper 17 is provided with an electric slide valve 18. Specifically, the existing 3D consumable drawing machine is placed below the mixing box 3, and the inlet of the 3D consumable drawing machine is placed below the discharge hopper 17. The waste plastic to be crushed is put into the top of the crushing roller 2 through the large inlet at the top of the crushing chamber 1. The waste plastic can be crushed by the rotation of the crushing roller 2. The crushed plastic particles fall into the mixing box 3 through the inlet 16. The electric slide valve 18 is opened, and the evenly mixed crushed plastic particles and dark masterbatch are put into the inlet of the 3D consumable drawing machine. The 3D consumable drawing machine works to obtain fiber filaments that are suitable for 3D printing. The 3D consumable drawing machine adopts existing mature technology. The more specific working principle will not be elaborated here.

[0028] As per the instruction manual Figure 1-4 As shown: A drive assembly 9 is provided between the crushing roller 2, the camshaft 4, and the stirring rod 6. The drive assembly 9 includes a motor 10 fixedly mounted on one outer wall of the crushing chamber 1. Rotating rods 11 rotatably connected to the side walls of the crushing chamber 1 are provided on both sides of the crushing roller 2. The output end of the motor 10 is fixedly connected to the end of one of the rotating rods 11 on one side. Gears 12 meshing with each other are provided on the rods of the two rotating rods 11 on the other side that extend out of the crushing chamber 1. The drive assembly 9 also includes a driven pulley 14 fixedly mounted on the camshaft 4 and the end of the stirring rod 6 extending out of the crushing chamber 1. A main pulley 13 is provided on one of the rotating rods 11 on the other side that is located outside the crushing chamber 1. A matching synchronous belt 15 is provided between pulley 13 and pulley 14. Specifically, the starting motor 10 drives the connected rotating rod 11 to rotate, which in turn drives the connected crushing roller 2 to rotate, which in turn drives the rotating rod 11 on the other side of the crushing roller 2 to rotate, which in turn drives the gear 12 on it to rotate. Under the meshing connection of the gear 12, it drives another gear 12 to rotate, which in turn drives the rotating rod 11 on it to rotate, which in turn drives the connected crushing roller 2 to rotate. The rotation of the rotating rod 11 drives the main pulley 13 on it to rotate, which, under the action of the synchronous belt 15, drives the pulley 14 to rotate, which in turn drives the camshaft 4 and the stirring rod 6 to rotate.

[0029] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0030] The principle of this utility model

[0031] In use, the inlet of the 3D consumable drawing machine is placed below the outlet hopper 17. The waste plastic to be crushed is fed into the top of the crushing roller 2 through the large inlet at the top of the crushing chamber 1. Through the drive component 9, the motor 10 is started, which simultaneously drives the crushing roller 2, camshaft 4 and stirring rod 6 to rotate. The rotation of the cooperating crushing roller 2 can crush the waste plastic. The crushed plastic particles fall into the mixing box 3 through the inlet 16. Small crushed plastic particles that meet the requirements for drawing fall into the lower part of the mixing box 3 through the screen holes of the screen plate 5. The rotation of the camshaft 4 can make the screen plate 5 vibrate in a fan shape. This effectively prevents plastic fragments from clogging the screen holes of the screen plate 5. By opening the flow control valve 20, the dark color masterbatch in the color masterbatch hopper 8 is added to the mixing box 3. The stirring rod 6 rotates, driving the stirring blade to rotate, which can fully mix the plastic fragments falling into the lower part of the mixing box 3 with the dark color masterbatch. This can separate large plastic fragments that do not meet the requirements for drawing, which is beneficial for the subsequent drawing work of the 3D consumable drawing machine. It also eliminates the need for manual operation to mix the collected plastic fragments with the dark color masterbatch, saving more time and effort.

[0032] After mixing, the electric slide valve 18 is opened, which allows the uniformly mixed crushed plastic particles and dark masterbatch to be fed into the feed port of the 3D filament drawing machine. The 3D filament drawing machine then produces fiber filaments that are suitable for 3D printing.

[0033] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A plastic recycling device that facilitates the production of 3D printing consumables, comprising a crushing chamber (1), wherein a crushing roller (2) is rotatably connected between the lower parts of the inner sidewalls of the crushing chamber (1), characterized in that: The bottom of the crushing chamber (1) is provided with a mixing box (3), and a camshaft (4) is rotatably connected between the upper part of the inner side wall of the mixing box (3) and the side of the crushing chamber (1). The top of the camshaft (4) is provided with a screen plate (5) that is inclined for screening crushed plastic. A stirring rod (6) is rotatably connected between the lower inner walls of the mixing box (3). An inlet pipe (7) is provided on the upper side wall of the mixing box (3) and placed below the screen plate (5). A color masterbatch hopper (8) is provided at the top of the inlet pipe (7). A drive assembly (9) is provided between the crushing roller (2), the camshaft (4) and the stirring rod (6).

2. The plastic recycling device for 3D printing consumables production according to claim 1, characterized in that: The drive assembly (9) includes a motor (10) fixedly mounted on an outer wall of the crushing chamber (1). The crushing roller (2) has rotating rods (11) rotatably connected to the side walls of the crushing chamber (1) on both sides. The output end of the motor (10) is fixedly connected to the end of one of the rotating rods (11) on one side. The two rotating rods (11) on the other side have gears (12) meshing with each other on their rod bodies that extend out of the crushing chamber (1).

3. A plastic recycling device that facilitates the production of 3D printing consumables according to claim 2, characterized in that: The drive assembly (9) also includes a driven pulley (14) fixedly mounted on the camshaft (4) and the stirring rod (6) extending out of the crushing chamber (1). On the other side, one of the rotating rods (11) is provided with a main pulley (13) located outside the crushing chamber (1). A matching synchronous belt (15) is provided between the main pulley (13) and the driven pulley (14).

4. A plastic recycling device that facilitates the production of 3D printing consumables according to claim 1, characterized in that: The mixing box (3) has an inlet (16) connected to the crushing chamber (1) on the side of the top of the mixing box (3) near the upper end of the screen plate (5). The bottom of the mixing box (3) has a discharge hopper (17) and an electric slide valve (18) on the discharge hopper (17).

5. A plastic recycling device for 3D printing consumables production according to claim 1, characterized in that: The color masterbatch hopper (8) has a scale line (19) on its outer wall, the inlet pipe (7) has a flow control valve (20), and the stirring rod (6) has several stirring blades evenly spaced on its shaft.

6. A plastic recycling device for 3D printing consumables production according to claim 1, characterized in that: The mixing box (3) has a discharge port (21) on the upper part of one side wall that is rotatably connected to the bottom of the sieve plate (5) at the lower end. The mixing box (3) has a discharge hopper (22) located outside the discharge port (21) on the side wall.

7. A plastic recycling device for 3D printing consumables production according to claim 6, characterized in that: The inclination angle of the screen plate (5) is 10°-20°, and a rotating shaft (23) is provided between the bottom of the discharge port (21) and the bottom of the lower inclined end of the screen plate (5).

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