Anti-condensation feeding mechanism of biodegradable lunch box injection molding machine

Abstract

The utility model relates to the technical field of feeding of injection molding machines, in particular to an anti-condensation feeding mechanism of a biodegradable meal box injection molding machine, which comprises a feeding cylinder and a support frame, the feeding cylinder comprises a shell and protective covers detachably mounted at two ends of the shell; an inner barrel is arranged in the feeding barrel, a plurality of feeding augers are symmetrically arranged in the inner barrel, the feeding ends of the feeding augers are connected with the same feeding port through feeding pipes, and the discharging ends of the feeding augers are connected with the same discharging port through discharging pipes. According to the embodiment, the inner barrel is arranged in the feeding barrel, the feeding augers are installed in the inner barrel, and molten plastic entering from the feeding port is divided into multiple parts, so that the amount of the molten plastic in the feeding augers is reduced, and the condensation probability of the molten plastic is reduced.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of injection molding machine feeding, in particular to an anti-condensation feeding mechanism for a biodegradable lunch box injection molding machine. Background Art

[0002] Biodegradable tableware refers to the process in which microorganisms in the natural environment, such as bacteria, mold, algae, etc., undergo biochemical reactions under the action of microorganisms and enzymes, causing the tableware to change from moldy appearance to internal quality changes, and finally forming carbon dioxide and water. It will not pollute the environment and protect the environment. Degradable tableware can be divided into two categories according to the materials used. One is made of natural materials, such as paper products, straw, starch, etc., which are degradable and are also called environmentally friendly products; the other is made of plastic as the main ingredient, and starch, photosensitizers and other substances are added during the processing. In order to protect the environment, many disposable tableware are currently made of biodegradable plastics, and injection molding is the most suitable method.

[0003] Injection molding machine is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastic plastics or thermosetting plastics. The feed rod of the existing injection molding machine's feed auger is mostly equipped with a heating function. The molten plastic is continuously heated during the feeding process to prevent the molten plastic from condensing due to temperature drop. However, due to the large amount of molten plastic in the feed auger, the heating method used by the feed rod is uneven, the temperature at the center of the injection molding tube is high, and the temperature at the edge is low, which is prone to condensation. Utility Model Content

[0004] The utility model aims to provide an anti-condensation feeding mechanism for a biodegradable lunch box injection molding machine to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-condensation feeding mechanism of a biodegradable lunch box injection molding machine, comprising a feeding barrel and a support frame, the feeding barrel comprising an outer shell and a protective cover detachably mounted on both ends of the outer shell; an inner barrel is arranged inside the feeding barrel, a plurality of feeding augers are symmetrically arranged inside the inner barrel, the feeding ends of the plurality of feeding augers are connected to the same feeding port through a feeding pipe, and the discharging ends of the feeding augers are connected to the same discharging port through a discharging pipe.

[0006] As a further solution of the utility model: the inner cylinder includes a second cylinder body and a first cylinder body detachably installed at both ends of the second cylinder body, and the first cylinder body and the second cylinder body are both provided with an insulation cavity inside, the insulation cavity is filled with liquid insulation agent, and multiple heating components are also installed inside the insulation cavity.

[0007] As a further solution of the utility model: the feeding auger includes a shell and an auger blade arranged inside the shell, the auger blade is rotatably installed inside the shell through a shaft, the end of the shaft extends out of the shell, and a driven gear is fixedly installed on the end of the shaft, a driving shaft is rotatably installed at the center of the inner cylinder, a driving gear is fixedly installed on the output end of the driving shaft, and the driving gear is meshed with the driven gear; a rotating motor is fixedly installed inside the second cylinder, and the output end of the rotating motor is fixedly connected to the driving shaft.

[0008] As a further solution of the utility model: both ends of the shaft body are hollow structures, and a plurality of openings are opened on the shaft sections located inside the shell on both sides of the shaft body, one end of the feed pipe is connected to one end of the shaft body, and the other end of the feed pipe is connected to the feed port.

[0009] As a further solution of the utility model: the inner cylinder is rotatably mounted in the outer shell, a gear ring is fixedly mounted on the inner cylinder, the feeding cylinder is fixedly mounted on a support frame, a first gear is rotatably mounted on the support frame, and the first gear is meshed with the gear ring.

[0010] As a further solution of the utility model: the first gear is rotatably mounted on the connecting frame via a connecting shaft, the connecting frame is fixedly mounted on a supporting frame, and a driving motor for driving the connecting shaft to rotate is also mounted on the supporting frame.

[0011] As a further solution of the utility model: the feed port is rotatably connected to the protective cover.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: in this embodiment, an inner cylinder is arranged inside the feeding cylinder, and multiple feeding augers are installed inside the inner cylinder, so that the molten plastic entering from the feed port is divided into multiple portions, thereby reducing the amount of molten plastic in each feeding augers and reducing the probability of condensation of the molten plastic; the inner cylinder arranged in the utility model includes a second cylinder body and a first cylinder body detachably installed at both ends of the second cylinder body, and the first cylinder body and the second cylinder body are both provided with insulation chambers, the insulation chambers are filled with liquid insulation, and multiple heating components are also installed inside the insulation chambers, and the heating components heat the liquid insulation, so that the heated liquid insulation heats the feeding auger, thereby increasing the side wall temperature of the feeding auger, avoiding the temperature of the molten plastic near the side wall inside the feeding auger to decrease, and preventing the molten plastic at the edge from condensing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the anti-condensation feeding mechanism of the biodegradable lunch box injection molding machine;

[0014] Figure 2 It is a front view of the anti-condensation feeding mechanism of the biodegradable lunch box injection molding machine;

[0015] Figure 3 A schematic diagram of the structure of removing the protective cover of the feeding cylinder in the anti-condensation feeding mechanism of the biodegradable lunch box injection molding machine;

[0016] Figure 4 This is a schematic diagram of the structure of the inner cylinder in the anti-condensation feeding mechanism of the biodegradable lunch box injection molding machine;

[0017] Figure 5 It is a cross-sectional view of the second cylinder in the anti-condensation feeding mechanism of the biodegradable lunch box injection molding machine;

[0018] Figure 6 This is a schematic diagram of the structure of the central axis and auger blades in the anti-condensation feeding mechanism of the biodegradable lunch box injection molding machine.

[0019] In the figure: 10, feeding barrel; 11, protective cover; 12, outer shell; 20, supporting frame; 21, driving motor; 22, first gear; 23, connecting frame; 30, inner barrel; 301, first barrel; 302, second barrel; 303, insulation chamber; 304, heating component; 305, rotating motor; 31, feeding auger; 311, auger blade; 312, shaft; 313, opening; 32, driven gear; 33, driving gear; 331, driving shaft; 34, feeding pipe; 35, feeding port; 36, gear ring. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-Figure 6 In an embodiment of the utility model, an anti-condensation feeding mechanism of a biodegradable lunch box injection molding machine includes a feeding barrel 10 and a support frame 20, wherein the feeding barrel 10 includes an outer shell 12 and a protective cover 11 detachably mounted on both ends of the outer shell 12; an inner barrel 30 is arranged inside the feeding barrel 10, and a plurality of feeding augers 31 are symmetrically arranged inside the inner barrel 30, and the feeding ends of the plurality of feeding augers 31 are connected to the same feeding port 35 through a feeding pipe 34, and the discharging ends of the feeding augers 31 are connected to the same discharging port through a discharging pipe. In this embodiment, a plurality of feeding augers 31 are installed inside the inner barrel 30 to divide the molten plastic entering the feeding port 35 into multiple portions, thereby reducing the amount of molten plastic in each feeding augers 31 and reducing the probability of condensation of the molten plastic.

[0022] In the embodiment of the present application, the inner cylinder 30 includes a second cylinder 302 and a first cylinder 301 detachably mounted at both ends of the second cylinder 302, the first cylinder 301 and the second cylinder 302 are both provided with a heat preservation chamber 303, the heat preservation chamber 303 is filled with a liquid heat preservation agent, and a plurality of heating components 304 are also installed in the heat preservation chamber 303, the heating components 304 are used to heat the liquid heat preservation agent, so that the heated liquid heat preservation agent heats the feeding auger 31, increases the side wall temperature of the feeding auger 31, avoids the temperature of the molten plastic near the side wall of the feeding auger 31 to decrease, and prevents the molten plastic at the edge from condensing; it should be noted that, Figure 5 As shown, the heat preservation chamber 303 is an annular structure, the feeding auger 31 is installed inside the heat preservation chamber 303 , and the outer wall of the feeding auger 31 is in contact with the inner wall of the heat preservation chamber 303 .

[0023] In the embodiment of the present application, the feeding auger 31 includes a shell and an auger blade 311 arranged inside the shell, the auger blade 311 is rotatably installed inside the shell through a shaft body 312, the end of the shaft body 312 extends out of the shell, and a driven gear 32 is fixedly installed on the end of the shaft body 312, a driving shaft 331 is rotatably installed at the center of the inner cylinder 30, and a driving gear 33 is fixedly installed on the output end of the driving shaft 331, and the driving gear 33 is meshed with the driven gear 32, when the driving shaft 331 is in a rotating state, the driving gear 33 controls the rotation of the driven gear 32, and then controls the rotation of the auger blade 311 inside the shell; it should be noted that a rotating motor 305 is fixedly installed inside the second cylinder 302, and the output end of the rotating motor 305 is fixedly connected to the driving shaft 331, and the rotating motor 305 is used to control the rotation of the driving shaft 331.

[0024] like Figure 6 As shown, both ends of the shaft body 312 are hollow structures, and a plurality of openings 313 are provided on the shaft sections located inside the shell on both sides of the shaft body 312. One end of the feed pipe 34 is connected to one end of the shaft body 312, and the other end of the feed pipe 34 is connected to the feed port 35. The molten plastic enters the end of the shaft body 312 along the feed pipe 34 from the feed port 35, and finally flows into the shell of the feeding auger 31 from the opening 313. The same applies to the discharge of the molten plastic.

[0025] The inner cylinder 30 is rotatably installed in the outer shell 12, and a ring gear 36 is fixedly installed on the inner cylinder 30. The feeding cylinder 10 is fixedly installed on the support frame 20, and a first gear 22 is rotatably installed on the support frame 20. The first gear 22 is meshed with the ring gear 36. When the first gear 22 is in a rotating state, the ring gear 36 and the inner cylinder 30 rotate synchronously on the outer shell 12, thereby promoting the flow of molten plastic inside the shell of the feeding auger 31 and avoiding the coagulation of the molten plastic. It should be noted that in order to achieve the contact and cooperation between the first gear 22 and the ring gear 36, a notch should be provided on the outer wall of the outer shell 12, and the first gear 22 passes through the notch and contacts with the ring gear 36 on the inner cylinder 30 inside the outer shell 12.

[0026] Furthermore, the first gear 22 is rotatably mounted on the connecting frame 23 via a connecting shaft, the connecting frame 23 is fixedly mounted on the supporting frame 20, and a driving motor 21 for driving the connecting shaft to rotate is also mounted on the supporting frame 20.

[0027] It should also be noted that the feed port 35 is rotatably connected to the protective cover 11 , and when the inner cylinder 30 rotates, the feed port 35 rotates synchronously, and the same is true for the discharge port.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An anti-condensation feeding mechanism for a biodegradable lunch box injection molding machine, characterized in that: The invention comprises a feeding barrel (10) and a support frame (20), wherein the feeding barrel (10) comprises an outer shell (12) and protective covers (11) detachably mounted on both ends of the outer shell (12); an inner barrel (30) is arranged inside the feeding barrel (10), and a plurality of feeding augers (31) are symmetrically arranged inside the inner barrel (30); the feeding ends of the plurality of feeding augers (31) are connected to a common feeding port (35) via a feeding pipe (34), and the discharging ends of the feeding augers (31) are connected to a common discharging port via a discharging pipe.

2. The anti-condensation feeding mechanism of the biodegradable lunch box injection molding machine according to claim 1 is characterized in that: The inner cylinder (30) comprises a second cylinder (302) and a first cylinder (301) detachably mounted at both ends of the second cylinder (302); a heat preservation cavity (303) is disposed inside the first cylinder (301) and the second cylinder (302); the heat preservation cavity (303) is filled with a liquid heat preservation agent; and a plurality of heating components (304) are also mounted inside the heat preservation cavity (303).

3. The anti-condensation feeding mechanism of the biodegradable lunch box injection molding machine according to claim 2, characterized in that: The feeding auger (31) comprises a shell and an auger blade (311) arranged inside the shell, the auger blade (311) is rotatably mounted inside the shell via a shaft (312), the end of the shaft (312) protrudes out of the shell, and a driven gear (32) is fixedly mounted on the end of the shaft (312), a driving shaft (331) is rotatably mounted at the center of the inner cylinder (30), a driving gear (33) is fixedly mounted on the output end of the driving shaft (331), and the driving gear (33) is meshed with the driven gear (32); a rotating motor (305) is fixedly mounted inside the second cylinder (302), and the output end of the rotating motor (305) is fixedly connected to the driving shaft (331).

4. The anti-condensation feeding mechanism of the biodegradable lunch box injection molding machine according to claim 3, characterized in that: Both ends of the shaft body (312) are hollow structures, and a plurality of openings (313) are provided on shaft sections located inside the shell on both sides of the shaft body (312). One end of the feed pipe (34) is connected to one end of the shaft body (312), and the other end of the feed pipe (34) is connected to the feed port (35).

5. The anti-condensation feeding mechanism of the biodegradable lunch box injection molding machine according to claim 1, characterized in that: The inner cylinder (30) is rotatably mounted in the outer shell (12), a gear ring (36) is fixedly mounted on the inner cylinder (30), the feeding cylinder (10) is fixedly mounted on the support frame (20), a first gear (22) is rotatably mounted on the support frame (20), and the first gear (22) is meshed with the gear ring (36).

6. The anti-condensation feeding mechanism of the biodegradable lunch box injection molding machine according to claim 5, characterized in that: The first gear (22) is rotatably mounted on a connecting frame (23) via a connecting shaft, the connecting frame (23) is fixedly mounted on a supporting frame (20), and a driving motor (21) for driving the connecting shaft to rotate is also mounted on the supporting frame (20).

7. The anti-condensation feeding mechanism of the biodegradable lunch box injection molding machine according to claim 6, characterized in that: The feed port (35) is rotatably connected to the protective cover (11).

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