Plastic product injection molding machine

Abstract

The utility model discloses an injection molding machine for plastic products, which relates to the field of injection molding machines and comprises a feeding barrel arranged at the top of a shell, a rotating shaft I penetrates through the top of the feeding barrel, a grinding disc and a scraper are respectively arranged on the surface of the rotating shaft I from top to bottom, and a filter plate is arranged in the feeding barrel. Through the grinding disc, the scraper, the auger, the filter plate and the return pipe, a user pours plastic particles into the bottom of the feeding barrel through the feeding port, the auger rotates to convey the plastic particles into the conveying pipe on the surface of the feeding barrel, and the plastic particles enter the feeding barrel along with the conveying pipe due to gravitational potential energy; and meanwhile, the auger drives a first rotating shaft to rotate through a belt wheel, a belt and a second belt wheel, the first rotating shaft rotates to drive a grinding disc and a scraper to rotate, through the arrangement, plastic particles which cannot penetrate through the filter plate cannot stay on the filter plate, and the work that a user removes the filter plate for cleaning is reduced.

Description

Technical Field

[0001] The utility model relates to the field of injection molding machines, in particular to an injection molding machine for plastic products. Background Art

[0002] Rigging refers to a force-bearing tool tied between a lifting machine and a lifted object in order to achieve the object's displacement, as well as a force-bearing component for stabilizing the spatial structure. The auxiliary structure of rigging is often made of ferroalloy and plastic. When the rigging structure made of plastic is reproduced, the plastic particles are melted and injected into the mold by an injection molding machine for processing. In plastic extrusion molding equipment, the plastic extruder is usually called the main machine, and the subsequent equipment plastic extrusion molding machine is called the auxiliary machine. After more than 100 years of development, the plastic extruder has evolved from the original single screw to a variety of models such as twin screws, multiple screws, and even screwless. The plastic extruder can be matched with various plastic molding auxiliary machines such as pipes, films, holding materials, monofilaments, flat wires, strapping tapes, extruded nets, plates, profiles, granulation, cable coating, etc., to form various plastic extrusion molding production lines and produce various plastic products. Therefore, plastic extrusion molding machinery is one of the widely used machines in the plastic processing industry, whether now or in the future.

[0003] The prior art discloses a plastic extruder feeding device with application number 202320428984.8, and its technical solution includes: the utility model discloses a plastic extruder feeding device, which is applied in the technical field of feeding devices, and the key points of its technical solution are: it includes an extruder and a feeding barrel installed on the extruder, the top and bottom of the feeding barrel are respectively provided with a feeding port and a discharging port, a crushing shaft is connected to the feeding barrel through a rotating component, a plurality of crushing rings are arranged on the crushing shaft at equal intervals in the height direction, and a filter screen is connected to the discharging port through a detachable component; the detachable component includes a mounting hole connected to the discharging port, a mounting seat is provided near the mounting hole of the feeding barrel, the filter screen is connected to the mounting seat, and the feeding port is provided with a plurality of crushing rings at equal intervals in the height direction, and a filter screen is connected to the discharging port through a detachable component; the detachable component includes a mounting hole connected to the discharging port, and the feeding barrel is provided with a mounting seat near the mounting hole, and the filter screen is connected to the mounting seat. The barrel is provided with threaded grooves on both sides of the mounting hole, and a threaded rod threadedly connected to the threaded groove runs through the mounting seat; the technical effect is that the threaded rod can be twisted out of the threaded groove, and the filter screen can be taken out and cleaned conveniently and quickly, but in actual use, when unqualified granular raw materials stay on the top of the filter screen, the filter screen needs to be manually removed, otherwise the filter screen is blocked and the qualified granular raw materials are difficult to enter the extruder. The user needs to manually clean the granular raw materials on the filter plate, which increases the user's work tasks, and the machine needs to be shut down during the removal and cleaning process, otherwise the unqualified granules will enter the extruder when the crushing continues, but the shutdown will affect the efficiency of the machine. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a plastic product injection molding machine to solve the technical problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: comprising an outer shell, a feed barrel is arranged on the top of the outer shell, a rotating shaft one passes through the top of the feed barrel, a grinding disc and a scraper are respectively arranged on the surface of the rotating shaft one from top to bottom, a filter plate is arranged inside the feed barrel, a return pipe is arranged on the outer surface of the feed barrel, a rotating shaft three, a rotating shaft two and a loading barrel are connected to one side of the outer shell, a bevel gear is connected to one side of the rotating shaft three, an augers are passed through both ends of the loading barrel, a pulley three and a bevel gear are sleeved on the outside of the augers, and a feed port and a conveying pipe are connected to the surface of the loading barrel.

[0006] By adopting the above technical solution, the rotating shaft 3 drives the auger to rotate through the bevel gear, and the auger delivers the plastic particles from the bottom of the loading barrel to the conveying pipe. At the same time, the rotation of the auger drives the pulley 3 to rotate, and the pulley 3 drives the rotating shaft 1 to rotate through the belt. The rotation of the rotating shaft 1 drives the grinding disc and the scraper to rotate. The grinding disc grinds the plastic particles, and the scraper delivers the plastic particles that fail to pass through the filter plate into the return pipe.

[0007] Furthermore, a motor is installed on the top of the shell, the rotating shaft 2 is connected to the output end of the motor, a pulley 1 is arranged on the surface of the rotating shaft 2, a pulley 4 is connected to the outer surface of the rotating shaft 3, and a belt is connected between the pulley 4 and the pulley 1, a pulley 2 is arranged on the top of the rotating shaft 1, and a belt is connected between the pulley 2 and the pulley 3, and an extrusion nozzle is arranged on the other side of the shell.

[0008] By adopting the above technical solution, the output end of the motor drives the rotating shaft three through the rotating shaft two and the belt, the pulley three drives the pulley two through the belt, and the extrusion nozzle extrude the heated plastic.

[0009] Furthermore, the return pipe is in the shape of a letter "7", and the bottom end of the return pipe is located above the feed inlet.

[0010] By adopting the above technical solution, the plastic particles slide in the return pipe due to the gravitational potential energy, and at the same time, the plastic particles fall into the feed port due to the gravitational potential energy.

[0011] Furthermore, a surface of the rotating shaft is provided with a plurality of scrapers, and the plurality of scrapers are distributed in a ring array.

[0012] By adopting the above technical solution, the ground plastic particles fall onto the filter plate, particles with small diameters pass through the filter plate, and particles with large diameters remain on the top of the filter plate. At the same time, the scraper scrapes the plastic particles that cannot pass through the filter layer into the return pipe.

[0013] Furthermore, the delivery pipe is connected to the feed barrel.

[0014] By adopting the above technical solution, the auger rotates to deliver the plastic particles to the conveying pipe, and at the same time the plastic particles flow into the feed barrel due to gravity potential energy.

[0015] Furthermore, an operation panel is provided on the top of the housing, and the operation panel is electrically connected to the motor.

[0016] By adopting the above technical solution, when the machine needs to be turned on and off, the user can start and stop the motor through the operation panel.

[0017] Furthermore, the diameter of the pulley three is greater than the diameter of the pulley two.

[0018] By adopting the above technical solution, when pulley three transmits power to pulley two through the belt, pulley two obtains a higher rotation speed.

[0019] In summary, the utility model mainly has the following beneficial effects:

[0020] The utility model achieves the following effects through a grinding disc, a scraper, an auger, a filter plate and a return pipe. The user pours plastic particles into the bottom of the upper barrel through the feed port, and the auger rotates to send the plastic particles to the conveying pipe on the surface of the upper barrel. Due to the gravity potential energy, the plastic particles follow the conveying pipe into the feed barrel. At the same time, the auger drives the rotating shaft to rotate through the pulley, the belt and the pulley. The rotation of the rotating shaft drives the grinding disc and the scraper to rotate. Then, the plastic particles entering the feed barrel fall to the grinding disc for grinding. The ground plastic particles fall onto the filter plate. The fine plastic particles pass through the filter plate, while the plastic particles that cannot pass through are sent to the return pipe through the scraper. The plastic particles re-enter the upper barrel through the feed port through the gravity potential energy. Through this setting, the plastic particles that cannot pass through the filter plate will not stay on the filter plate, reducing the work of the user to remove the filter plate for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the shell structure of the utility model;

[0022] Figure 2 This is a side sectional structural diagram of the feed barrel of the utility model;

[0023] Figure 3 This is a side sectional structural diagram of the loading barrel of the utility model;

[0024] Figure 4 It is a schematic diagram of the shell structure of the utility model.

[0025] In the figure, 1 is the casing; 2 is the motor; 3 is the pulley 1; 4 is the bevel gear; 5 is the loading barrel; 6 is the feed port; 7 is the return pipe; 8 is the feed barrel; 9 is the pulley 2; 10 is the pulley 3; 11 is the conveying pipe; 12 is the rotating shaft 1; 13 is the belt; 14 is the grinding disc; 15 is the scraper; 16 is the filter plate; 17 is the auger; 18 is the pulley 4; 19 is the rotating shaft 2; 20 is the operation panel; 21 is the rotating shaft 3; 22 is the extrusion nozzle. DETAILED DESCRIPTION

[0026] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0027] The following describes an embodiment of the utility model based on its overall structure.

[0028] A plastic product injection molding machine, such as Figure 1-Figure 4 As shown, it includes a shell 1, a feed barrel 8 is arranged on the top of the shell 1, a rotating shaft 12 passes through the top of the feed barrel 8, a grinding disc 14 and a scraper 15 are arranged on the surface of the rotating shaft 12 from top to bottom, a plurality of scrapers 15 are arranged on the surface of the rotating shaft 12, and the plurality of scrapers 15 are distributed in a ring array, and the ground plastic particles fall onto the filter plate 16, and particles with small particle diameters pass through the filter plate 16, and particles with large particle diameters remain on the top of the filter plate 16. At the same time, the scraper 15 scrapes the plastic particles that cannot pass through the filter plate 16 into the return pipe 7, and the filter plate 16 is arranged inside the feed barrel 8. A return pipe 7 is arranged on the surface, and a rotating shaft three 21, a rotating shaft two 19 and a feeding barrel 5 are connected to one side of the outer shell 1, and a bevel gear 4 is connected to one side of the rotating shaft three 21. Augers 17 are passed through both ends of the feeding barrel 5, and a pulley three 10 and a bevel gear 4 are sleeved on the outside of the auger 17. A feed port 6 and a conveying pipe 11 are connected to the surface of the feeding barrel 5. The diameter of the pulley three 10 is larger than that of the pulley two 9. When the pulley three 10 transmits the pulley two 9 through the belt 13, the pulley two 9 obtains a higher rotation speed. An extrusion nozzle 22 is arranged on the other side of the outer shell 1, and the extrusion nozzle 22 extrude the melted rubber.

[0029] See also Figure 1-Figure 4In the above embodiment, a motor 2 is installed on the top of the shell 1, a rotating shaft 2 19 is connected to the output end of the motor 2, a pulley 1 3 is arranged on the surface of the rotating shaft 2 19, a pulley 4 18 is connected to the outer surface of the rotating shaft 3 21, and a belt 13 is connected between the pulley 4 18 and the pulley 1 3, a pulley 2 9 is arranged on the top of the rotating shaft 12, and a belt 13 is connected between the pulley 2 9 and the pulley 3 10. The output end of the motor 2 drives the rotating shaft 3 21 to rotate through the rotating shaft 2 19 and the belt 13, and the pulley 3 10 drives the pulley 2 9 to rotate through the belt 13, and the extrusion nozzle 22 extrude the heated plastic, and an operation panel 20 is arranged on the top of the shell 1, and the operation panel 20 is electrically connected to the motor 2. When the machine needs to be turned on and off, the user can start and turn off the motor 2 by turning the operation panel 20.

[0030] See also Figure 1-Figure 4 In the above embodiment, the return pipe 7 is in the shape of a "7", and the bottom end of the return pipe 7 is arranged above the feed port 6. The plastic particles slide in the return pipe 7 due to the gravity potential energy, and at the same time, the plastic particles fall into the feed port 6 due to the gravity potential energy. The conveying pipe 11 is connected to the feed barrel 8, and the auger 17 rotates to deliver the plastic particles to the conveying pipe 11. At the same time, the plastic particles flow into the feed barrel 8 due to the gravity potential energy.

[0031] The implementation principle of this embodiment is as follows: the user starts the motor 2 through the operation panel, the output end of the motor 2 drives the pulley 1 3 to rotate through the rotating shaft 2 19, the pulley 1 3 drives the rotating shaft 3 21 and the bevel gear 4 to rotate through the belt 13, the bevel gear 4 drives the auger 17 to rotate, and at the same time the user adds plastic particles to the feed port 6, and then the plastic particles enter the bottom of the feeding bucket 5, the auger 17 rotates to send the plastic particles to the conveying pipe 11 on the surface of the feeding bucket 5, and due to the gravitational potential energy, the plastic particles follow the conveying pipe 11 into the feeding bucket 8, and at the same time the auger 17 passes through the pulley 3 10 and the belt 1 3 and the pulley 2 9 drive the rotating shaft 12 to rotate, and then the plastic particles entering the feed barrel 8 fall to the grinding disc 14 for grinding, and the ground plastic particles fall onto the filter plate 16, and the fine particles pass through the filter plate 16, while the particles that cannot pass through the filter plate 16 are sent to the return pipe 7 through the scraper 15, and the plastic particles enter the upper barrel 5 through the feed port 6 again through the gravitational potential energy, so that the plastic particles are sent to the feed barrel 8 for grinding again, and at the same time, the plastic particles entering the housing 1 are heated to a molten state, and the molten plastic is extruded from the extrusion nozzle 22 by the motor 2.

[0032] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A plastic product injection molding machine, comprising a housing (1), characterized in that: A feed barrel (8) is arranged on the top of the outer shell (1), a rotating shaft (12) passes through the top of the feed barrel (8), a grinding disc (14) and a scraper (15) are arranged on the surface of the rotating shaft (12) from top to bottom, a filter plate (16) is arranged inside the feed barrel (8), a return pipe (7) is arranged on the outer surface of the feed barrel (8), one side of the outer shell (1) is connected to a rotating shaft (21), a rotating shaft (19) and a loading barrel (5), one side of the rotating shaft (21) is connected to a bevel gear (4), an auger (17) passes through both ends of the loading barrel (5), a pulley (10) and a bevel gear (4) are sleeved on the outside of the auger (17), and a feed port (6) and a conveying pipe (11) are connected to the surface of the loading barrel (5).

2. A plastic product injection molding machine according to claim 1, characterized in that: A motor (2) is installed on the top of the housing (1), the second rotating shaft (19) is connected to the output end of the motor (2), a pulley (1) is arranged on the surface of the second rotating shaft (19), a pulley (1) is connected to the outer surface of the third rotating shaft (21), and a belt (13) is connected between the pulley (18) and the pulley (3), a pulley (2) (9) is arranged on the top of the first rotating shaft (12), and a belt (13) is connected between the pulley (2) (9) and the pulley (3), and an extrusion nozzle (22) is arranged on the other side of the housing (1).

3. According to the plastic product injection molding machine of claim 1, the return pipe (7) is in the shape of a letter "7", and the bottom end of the return pipe (7) is located above the feed port (6).

4. A plastic product injection molding machine according to claim 1, characterized in that: A plurality of scrapers (15) are arranged on the surface of the rotating shaft (12), and the plurality of scrapers (15) are distributed in a ring array.

5. The plastic product injection molding machine according to claim 1, characterized in that: The delivery pipe (11) is in communication with the feed barrel (8).

6. A plastic product injection molding machine according to claim 1, characterized in that: An operating panel (20) is provided at the top of the housing (1), and the operating panel (20) is electrically connected to the motor (2).

7. A plastic product injection molding machine according to claim 2, characterized in that: The diameter of the pulley three (10) is larger than that of the pulley two (9).

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