Feeding mistake proofing device of injection molding machine

Abstract

The utility model belongs to the technical field of injection molding machine feeding, and discloses an injection molding machine feeding mistake proofing device which comprises a discharging hopper, a fixing sleeve is fixedly connected to the outer wall of the discharging hopper, a plurality of air cylinders are rotationally connected to the inner wall of the fixing sleeve, and a plurality of supporting blocks are fixedly connected to the outer wall of the discharging hopper. First rotating shafts are rotationally connected to the outer walls of the multiple supporting blocks, supporting plates are fixedly connected to the ends of the multiple first rotating shafts, fixing blocks are fixedly connected to the tops of the multiple supporting plates, and transparent pipes are fixedly connected to the inner walls of the multiple fixing blocks. In the feeding process, firstly, an air cylinder at the corresponding position is started, a supporting plate is made to rotate with a first rotating shaft as the center through a second rotating shaft and a hinged support, transparent pipes corresponding to plastic particles are made to rotate to be perpendicular to a discharging hopper, and an operator observes the color of the transparent pipes corresponding to the plastic particles; the color of the plastic particles needing to be fed can be known in advance, so that self-inspection is carried out in advance, and the purpose of feeding mistake proofing is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machine feeding, and more specifically to an injection molding machine feeding error prevention device. Background Art

[0002] The feeding device of an injection molding machine is an important component of the injection molding machine. It is responsible for automatically, continuously, and stably conveying raw materials such as granules or powders into the barrel of the injection molding machine to ensure smooth injection molding production. Injection molding machine feeding devices can be divided into various types according to their working principles and structural characteristics, such as automatic feeders, vacuum feeding pumps, and central feeding systems. These devices are usually composed of a hopper, a conveying pipeline, a control system, and other parts.

[0003] When in use, the existing injection molding machine feeding device mainly uses a vacuum pump to transport plastic pellets into the injection molding machine hopper. However, the traditional feeding device still has room for improvement in terms of automation and accuracy. In particular, it relies on manual identification of the color of plastic pellets in the vacuum pump dispenser cannula. This method is not only inefficient but also prone to feeding errors. To this end, we propose an injection molding machine feeding error prevention device. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides an injection molding machine feeding error prevention device, which solves the problem that the existing injection molding machine feeding device mainly transports plastic particles into the injection molding machine hopper through a vacuum pump when in use. However, the traditional feeding device still has room for improvement in automation and accuracy, especially relying on manual identification of the color of plastic particles in the vacuum pump distributor tube, which is not only inefficient but also easily leads to technical problems of feeding errors.

[0005] The utility model proposes an injection molding machine feeding error prevention device, comprising a lower hopper, an outer wall of the lower hopper is fixedly connected to a fixed sleeve, an inner wall of the fixed sleeve is rotatably connected to a plurality of cylinders, an outer wall of the lower hopper is fixedly connected to a plurality of support blocks, outer walls of the plurality of support blocks are rotatably connected to a first rotating shaft, ends of the plurality of first rotating shafts are fixedly connected to a supporting plate, tops of the plurality of supporting plates are fixedly connected to the fixed blocks, inner walls of the plurality of fixed blocks are fixedly connected to transparent tubes, the colors of the plurality of transparent tubes correspond to the colors of the plastic particles to be loaded, ends of the plurality of transparent tubes extend into the lower hopper, bottoms of the plurality of supporting plates are fixedly connected to hinge seats, inner walls of the plurality of hinge seats are rotatably connected to a second rotating shaft, and ends of the plurality of second rotating shafts are respectively rotatably connected to corresponding cylinder output ends.

[0006] Preferably, the outer wall of the lower hopper is provided with a plurality of mounting holes, the inner walls of the plurality of mounting holes are fixedly connected with a fixing frame, the inner walls of the plurality of fixing frames are fixedly connected with bristles, and the end of the transparent tube passes through the fixing frame and extends to the outside thereof.

[0007] Preferably, a top cover is fixedly connected to the top of the lower hopper, a motor is fixedly connected to the top of the top cover, and an output end of the motor passes through the top cover and extends to below it.

[0008] Preferably, the output end of the motor is fixedly connected to a stirring shaft, and the outer wall of the stirring shaft is fixedly connected to a plurality of stirring blades.

[0009] Preferably, a discharge pipe is fixedly connected to the bottom of the discharge hopper, a chassis is fixedly connected to the circumferential outer wall of the discharge pipe, and a plurality of vacuum feeding pumps are fixedly connected to the top of the chassis.

[0010] Preferably, the feed ends of the plurality of vacuum feeding pumps are fixedly connected with suction pipes, the output ends of the plurality of vacuum feeding pumps are fixedly connected with discharge pipes, and the ends of the plurality of discharge pipes are respectively fixedly connected with transparent tubes.

[0011] The beneficial effects of the present invention are:

[0012] 1. During the feeding process, the injection molding machine's feeding error-proofing device first starts the cylinder at the corresponding position, and then rotates the support plate around the first rotating shaft through the second rotating shaft and the hinge seat, so that the transparent tube corresponding to the plastic particles rotates to a vertical state with the lower hopper. By observing the color of the transparent tube corresponding to the plastic particles, the operator can know the color of the plastic particles to be fed in advance, so as to perform self-inspection in advance and achieve the purpose of feeding error-proofing.

[0013] 2. The injection molding machine has an anti-error feeding device. During the flipping process, the end of the transparent tube passes through the bristles in the corresponding fixed frame and extends into the lower hopper. The bristles can prevent plastic particles from splashing out of the fixed frame during the feeding process.

[0014] 3. The injection molding machine is equipped with a feeding error prevention device. The motor drives the stirring shaft to rotate, and the stirring shaft drives multiple stirring blades to rotate. The stirring blades mix and stir the plastic particles inside the lower hopper to improve the mixing degree of the plastic particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the installation structure of the transparent tube of the utility model;

[0018] Figure 4 This is a schematic diagram of the installation structure of the fixed frame of the utility model.

[0019] In the figure: 1. discharge hopper; 2. fixing sleeve; 3. cylinder; 4. support block; 5. first rotating shaft; 6. support plate; 7. fixing block; 8. transparent tube; 9. hinge seat; 10. second rotating shaft; 11. discharge pipe; 12. chassis; 13. vacuum feeding pump; 14. suction pipe; 15. discharge pipe; 16. mounting hole; 17. fixing frame; 18. brush; 19. top cover; 20. motor; 21. stirring shaft; 22. stirring blade. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figure 1 、 Figure 2 and Figure 3 As shown, a feeding error-proofing device for an injection molding machine includes a lower hopper 1, a fixed sleeve 2 is fixedly connected to the outer wall of the lower hopper 1, a plurality of cylinders 3 are rotatably connected to the inner wall of the fixed sleeve 2, a plurality of support blocks 4 are fixedly connected to the outer wall of the lower hopper 1, a first rotating shaft 5 is rotatably connected to the outer walls of the plurality of support blocks 4, a plurality of first rotating shafts 5 are fixedly connected to the ends of the plurality of support plates 6, a fixed block 7 is fixedly connected to the top of the plurality of support plates 6, a transparent tube 8 is fixedly connected to the inner wall of the plurality of fixed blocks 7, and the color of the plurality of transparent tubes 8 corresponds to the color of the plastic particles to be fed. The color of the transparent tube 8 corresponds to the color of the plastic particles to be fed. This design allows the operator to intuitively identify each material, effectively avoiding material confusion and misfeeding. The transparent tube 8 also allows the operator to observe the material flow at any time to ensure a smooth feeding process. The ends of multiple transparent tubes 8 extend into the lower hopper 1, and the bottoms of multiple support plates 6 are fixedly connected to hinge seats 9. The inner walls of multiple hinge seats 9 are rotatably connected to second rotating shafts 10. The ends of multiple second rotating shafts 10 are respectively rotatably connected to the output ends of the corresponding cylinders 3, such as Figure 1 As shown, during the loading process, the cylinder 3 at the corresponding position is first started. Under the push of air pressure, the piston in the cylinder 3 extends, and the support plate 6 is rotated around the first rotating shaft 5 through the second rotating shaft 10 and the hinge seat 9, so that the transparent tube 8 corresponding to the plastic particles is rotated to a vertical state with the lower hopper 1. Since the color of the transparent tube 8 corresponds to the color of the plastic particles to be loaded, the operator can know the color of the plastic particles to be loaded in advance by observing the color of the transparent tube 8 corresponding to the plastic particles, thereby performing self-inspection in advance and achieving the purpose of error prevention in loading.

[0022] like Figure 2 and Figure 4As shown, the outer wall of the lower hopper 1 is provided with a plurality of mounting holes 16, the inner walls of the plurality of mounting holes 16 are fixedly connected with a fixing frame 17, the inner walls of the plurality of fixing frames 17 are fixedly connected with bristles 18, and the end of the transparent tube 8 passes through the fixing frame 17 and extends to the outside thereof.

[0023] like Figure 1 and Figure 2 As shown, a top cover 19 is fixedly connected to the top of the lower hopper 1, a motor 20 is fixedly connected to the top of the top cover 19, an output end of the motor 20 passes through the top cover 19 and extends to the bottom thereof, a stirring shaft 21 is fixedly connected to the output end of the motor 20, and a plurality of stirring blades 22 are fixedly connected to the outer wall of the stirring shaft 21. The arrangement of the stirring shaft 21 and the stirring blades 22 can fully stir the material in the lower hopper 1, ensure uniform mixing of the material, avoid stratification or agglomeration of the material, and improve the production efficiency and product quality of the injection molding machine.

[0024] like Figure 1 and Figure 2 As shown, a discharge pipe 11 is fixedly connected to the bottom of the discharge hopper 1, a chassis 12 is fixedly connected to the circumferential outer wall of the discharge pipe 11, a plurality of vacuum feeding pumps 13 are fixedly connected to the top of the chassis 12, a plurality of vacuum feeding pumps 13 are fixedly connected to the feeding ends of the plurality of vacuum feeding pumps 13 are fixedly connected to the suction pipe 14, a plurality of vacuum feeding pumps 13 are fixedly connected to the output ends of the plurality of discharge pipes 15, and the ends of the plurality of discharge pipes 15 are respectively fixedly connected to the transparent tube 8.

[0025] Working principle: The motor 20 drives the stirring shaft 21 to rotate, and the stirring shaft 21 drives the plurality of stirring blades 22 to rotate, and the stirring blades 22 mix and stir the plastic particles inside the lower hopper 1 to improve the mixing degree of the plastic particles;

[0026] During the feeding process, the plastic granule storage barrels of corresponding colors are placed under the corresponding vacuum feeding pumps 13, so that the suction pipes 14 of the vacuum feeding pumps 13 are placed in the storage barrels. When plastic granules of different colors are fed, the corresponding cylinders 3 above the vacuum feeding pumps 13 are started, and the support plate 6 is rotated around the first rotating shaft 5 through the second rotating shaft 10 and the hinge seat 9, so that the transparent tubes 8 corresponding to the plastic granules are rotated to a perpendicular state with the lower hopper 1. The color of the plastic granules to be fed can be known in advance, so that self-inspection can be performed in advance to achieve the purpose of error-proof feeding.

[0027] During the flipping process, the end of the transparent tube 8 passes through the bristles 18 in the corresponding fixed frame 17 and extends to the inside of the lower hopper 1. The bristles 18 can prevent the plastic particles from splashing out of the fixed frame 17 during the loading process. The vacuum loading pump 13 transports the plastic particles to the inside of the transparent tube 8 through the discharge pipe 15, and discharges them into the inside of the lower hopper 1 through the transparent tube 8.

[0028] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0029] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A feeding error prevention device for an injection molding machine, comprising a lower hopper (1), characterized in that: The outer wall of the lower hopper (1) is fixedly connected to a fixed sleeve (2), and the inner wall of the fixed sleeve (2) is rotatably connected to a plurality of cylinders (3). The outer wall of the lower hopper (1) is fixedly connected to a plurality of support blocks (4), and the outer walls of the plurality of support blocks (4) are rotatably connected to a first rotating shaft (5). The ends of the plurality of first rotating shafts (5) are fixedly connected to a supporting plate (6), and the tops of the plurality of supporting plates (6) are fixedly connected to a fixed block (7). The inner walls of the plurality of fixed blocks (7) are fixedly connected to a transparent tube (8). The colors of the plurality of transparent tubes (8) correspond to the colors of the plastic particles to be loaded, and the ends of the plurality of transparent tubes (8) extend into the lower hopper (1). The bottoms of the plurality of supporting plates (6) are fixedly connected to a hinge seat (9), and the inner walls of the plurality of hinge seats (9) are rotatably connected to a second rotating shaft (10). The ends of the plurality of second rotating shafts (10) are rotatably connected to the output ends of the corresponding cylinders (3).

2. The injection molding machine feeding error-proofing device according to claim 1, characterized in that: The outer wall of the lower hopper (1) is provided with a plurality of mounting holes (16), the inner walls of the plurality of mounting holes (16) are fixedly connected to a fixing frame (17), the inner walls of the plurality of fixing frames (17) are fixedly connected to bristles (18), and the end of the transparent tube (8) passes through the fixing frame (17) and extends to the outside thereof.

3. The injection molding machine feeding error-proofing device according to claim 2, characterized in that: The top of the lower hopper (1) is fixedly connected to a top cover (19), the top of the top cover (19) is fixedly connected to a motor (20), and the output end of the motor (20) passes through the top cover (19) and extends to the bottom thereof.

4. The injection molding machine feeding error-proofing device according to claim 3, characterized in that: The output end of the motor (20) is fixedly connected to a stirring shaft (21), and the outer wall of the stirring shaft (21) is fixedly connected to a plurality of stirring blades (22).

5. The injection molding machine feeding error prevention device according to claim 4, characterized in that: The bottom of the lower hopper (1) is fixedly connected to a lower feed pipe (11), the circumferential outer wall of the lower feed pipe (11) is fixedly connected to a chassis (12), and the top of the chassis (12) is fixedly connected to a plurality of vacuum feeding pumps (13).

6. The injection molding machine feeding error prevention device according to claim 5, characterized in that: The feed ends of the plurality of vacuum feeding pumps (13) are all fixedly connected with a suction pipe (14), the output ends of the plurality of vacuum feeding pumps (13) are all fixedly connected with a discharge pipe (15), and the ends of the plurality of discharge pipes (15) are respectively fixedly connected with the transparent tube (8).

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