Plastic particle feeding device of injection molding machine

Abstract

The utility model discloses an injection molding machine plastic particle feeding device, which comprises a heating cylinder and a material distribution box, a material guide plate and a filter plate are respectively arranged in the material distribution box, a plurality of vibration motors are arranged on the top surface of the filter plate, a bottom plate is arranged at the bottom end of the material distribution box, and the bottom plate is arranged on the bottom surface of the material distribution box. A second screw conveyer and a first screw conveyer are respectively and rotatably connected in the material distribution box, a heat insulation barrel is fixedly arranged on the top wall of the heating barrel, a plurality of second heating pipes and a plurality of first heating pipes are respectively and rotatably connected in the heating barrel, and each second heating pipe is positioned in the heat insulation barrel. The purpose of heating the interior of the heating cylinder in a partitioned mode is achieved, the situation that materials are not fully heated due to unified heating is avoided, meanwhile, it is avoided that large particles need to be repeatedly treated independently after the materials are separated, and energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the field of injection molding machine equipment, in particular to a plastic particle feeding device for an injection molding machine. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal, and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it ejected and fill the mold cavity.

[0003] In Chinese utility model patents, such as the utility model of CN218640195U, an automatic feeding and heating device for plastic particles for an injection molding machine is disclosed, which includes a heating mechanism to screen out larger raw material particles to prevent them from entering the heating mechanism for heating, thereby preventing the larger particles from being heated incompletely. This solves the problem that the existing plastic particle feeding mechanism for the injection molding machine lacks the effect of screening the size of the plastic particles, resulting in incomplete heating, and easily causing uneven distribution of product material after being processed into products, resulting in defective products.

[0004] However, although the above technology can screen the size of plastic particles during use, when the discharged larger plastic particles need to be reheated uniformly, it is necessary to repeatedly start and stop the equipment and readjust the distribution of the screen plates, resulting in a waste of production time, interrupting the continuity of the production process, and thus reducing the overall production efficiency. Utility Model Content

[0005] The utility model aims to solve the problems in the background technology and proposes a plastic particle feeding device for an injection molding machine.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The plastic particle feeding device of the injection molding machine includes a heating cylinder and a distribution box, wherein a material guide plate and a filter plate are respectively installed in the distribution box, a plurality of vibration motors are installed on the top surface of the filter plate, a bottom plate is installed at the bottom end of the distribution box, a second screw conveyor and a first screw conveyor are respectively rotatably connected in the distribution box, an insulating cylinder is fixedly installed on the top wall of the heating cylinder, a plurality of second heating tubes and a first heating tube are respectively rotatably connected in the heating cylinder, and each second heating tube is located in the insulating cylinder, and each first heating tube is located between the outer side of the insulating cylinder and the inner wall of the heating cylinder, the second screw conveyor is connected in the insulating cylinder through a conveying mechanism, and the first screw conveyor is connected to the heating cylinder through a conveying mechanism.

[0008] Preferably, the conveying mechanism includes a first conveying pipe and a second conveying pipe, and the first conveying pipe and the second conveying pipe are both fixedly installed on the side of the material distribution box, the first conveying pipe and the second conveying pipe are respectively connected with a first connecting pipe and a second connecting pipe, and the first connecting pipe and the second connecting pipe are both connected to the heating tube, and the first connecting pipe is connected between the outer side of the insulation tube and the inner wall of the heating tube, and the second connecting pipe is connected to the inside of the insulation tube.

[0009] Preferably, a driving motor is fixedly mounted on the bottom wall of the heating tube, and the output shaft of the driving motor passes through the heating tube and extends inwardly, a rotating plate is mounted on the output shaft of the driving motor, and the rotating plate is rotatably connected to the bottom wall of the heating tube, and the rotating plate is rotatably connected to the insulation tube, and each second conveying tube and the first heating tube are fixedly mounted on the top surface of the rotating plate.

[0010] Preferably, the top surface of the material distribution box is connected to a material inlet, and the bottom surface of the material distribution box is fixedly mounted with a support seat.

[0011] Preferably, the guide plate, filter plate and bottom plate are all placed obliquely in the material distribution box, the side wall of the material distribution box and the top surface of the bottom plate are jointly equipped with a guide plate, and the guide plate is in contact with the spiral blades of the first screw conveyor.

[0012] Preferably, the power of each of the second heating tubes is smaller than the power of the first heating tubes.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model realizes the purpose of separating the materials dumped into the material distribution box and conveying them separately through the first screw conveyor and the second screw conveyor by arranging devices such as filter plates and vibration motors.

[0015] 2. The utility model realizes the purpose of zoned heating in the heating cylinder by arranging devices such as a heating cylinder, an insulating cylinder, a first heating tube, and a second heating tube, thereby avoiding insufficient heating of materials due to unified heating, and avoiding the need to repeatedly process larger particles separately after material separation, thereby reducing energy consumption.

[0016] In summary, the utility model is easy to operate when in use, and achieves the purpose of zoned heating in the heating cylinder, avoiding insufficient heating of materials due to unified heating, and at the same time avoids the need to repeatedly process larger particles separately after material separation, thereby reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the plastic pellet feeding device for the injection molding machine proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the heating barrel of the plastic pellet feeding device for the injection molding machine proposed by the utility model;

[0019] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of a material distribution box of a plastic granule feeding device for an injection molding machine.

[0020] In the figure: 1 heating cylinder, 2 support seat, 3 driving motor, 4 material distribution box, 5 feeding port, 6 first conveying pipe, 7 second conveying pipe, 8 insulation cylinder, 9 first heating pipe, 10 material guide plate, 11 filter plate, 12 vibration motor, 13 drainage plate, 14 first screw conveyor, 15 second screw conveyor, 16 bottom plate, 17 first connecting pipe, 18 second connecting pipe, 19 rotating plate, 20 second heating pipe. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] Reference Figure 1-3 The plastic pellet feeding device of the injection molding machine comprises a heating cylinder 1 and a material distribution box 4. The top surface of the material distribution box 4 is connected with a material inlet 5. The bottom surface of the material distribution box 4 is fixedly installed with a support seat 2, so that the height of the material distribution box 4 is aligned with the height of the heating cylinder 1. A material guide plate 10 and a filter plate 11 are respectively installed in the material distribution box 4. A plurality of vibration motors 12 are installed on the top surface of the filter plate 11. A bottom plate 16 is installed at the bottom end of the material distribution box 4. A second screw conveyor 15 and a first screw conveyor 14 are respectively rotatably connected in the material distribution box 4. An insulating cylinder 8 is fixedly installed on the top wall of the heating cylinder 1. The material guide plate 10, the filter plate 11 and The bottom plate 16 is placed at an angle in the material distribution box 4. The side wall of the material distribution box 4 and the top surface of the bottom plate 16 are jointly installed with a guide plate 13, and the guide plate 13 is in contact with the spiral blade of the first screw conveyor 14. It should be noted that the material is caused to slide from the high place to the low place of the filter plate 11 through the guide plate 10, and the filtering effect is accelerated through the force of the vibration motor 12, so that the larger material stays above the filter plate 11, and the smaller particles enter the bottom plate 16, and the smaller particles are fully in contact with the first screw conveyor 14 through the guide plate 13 to avoid residual bottom material;

[0023] A plurality of second heating tubes 20 and the first heating tube 9 are rotatably connected in the heating tube 1, and each second heating tube 20 is located in the heat-insulating tube 8, and each first heating tube 9 is located between the outer side of the heat-insulating tube 8 and the inner wall of the heating tube 1. A driving motor 3 is fixedly installed on the bottom wall of the heating tube 1, and the output shaft of the driving motor 3 passes through the heating tube 1 and extends inwardly. A rotating plate 19 is installed on the output shaft of the driving motor 3, and the rotating plate 19 is rotatably connected to the bottom wall of the heating tube 1, and the rotating plate 19 is rotatably connected to the heat-insulating tube 8, and each second conveying pipe 7 and the first heating tube 9 are fixedly installed on the top surface of the rotating plate 19. Through the rotation of the first heating tube 9 and the second heating tube 20, the material can be stirred to achieve uniform heating;

[0024] The power of each second heating tube 20 is smaller than that of the first heating tube 9, and the heat-insulating tube 8 is provided to realize partitions in the heating tube 1, and different heating temperatures are realized in the partitions through the action of the first heating tube 9 and the second heating tube 20, and the second heating tube 20 heats smaller particles, and the first heating tube 9 heats larger particles, so as to avoid insufficient heating during unified heating;

[0025] The second screw conveyor 15 is connected to the insulation tube 8 through a conveying mechanism, and the first screw conveyor 14 is connected to the heating tube 1 through a conveying mechanism. The conveying mechanism includes a first conveying pipe 6 and a second conveying pipe 7, and the first conveying pipe 6 and the second conveying pipe 7 are both fixedly installed on the side of the distribution box 4. The first conveying pipe 6 and the second conveying pipe 7 are respectively connected to the first connecting pipe 17 and the second connecting pipe 18, and the first connecting pipe 17 and the second connecting pipe 18 are both connected to the heating tube 1, and the first connecting pipe 17 is connected between the outer side of the insulation tube 8 and the inner wall of the heating tube 1, and the second connecting pipe 18 is connected to the inside of the insulation tube 8.

[0026] When the utility model is used, the material is poured into the material dividing box 4 through the material inlet 5, and then the material is guided through the material guide plate 10, and the larger particles are retained on the top surface of the filter plate 11 and the smaller particles are retained on the top surface of the bottom plate 16 through the arrangement of the vibration motor 12 and the filter plate 11, and the filter plate 11 and the bottom plate 16 are both tilted, so that the second screw conveyor 15 is fully in contact with the larger particles, and the first screw conveyor 14 is fully in contact with the smaller particles, and then the first screw conveyor 14 and the second screw conveyor 15 are started, so that the material is conveyed along the second conveying pipe 7 and the first conveying pipe 6, and then the material falls into the heating cylinder 1 through the second connecting pipe 18 and the first connecting pipe 17;

[0027] At the same time, smaller particles fall into the insulation tube 8, and larger particles fall between the insulation tube 8 and the side wall of the heating tube 1. The second heating tube 20 and the first heating tube 9 are arranged to achieve zoned heating, thereby avoiding insufficient heating due to uneven material heating. At the same time, the drive motor 3 is started to drive the rotating plate 19 to rotate, and drive multiple first heating tubes 9 and second heating tubes 20 to rotate, so as to stir the material and achieve uniform heating.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plastic pellet feeding device for an injection molding machine, comprising a heating cylinder (1) and a material distribution box (4), characterized in that: A material guide plate (10) and a filter plate (11) are respectively installed in the distribution box (4), a plurality of vibration motors (12) are installed on the top surface of the filter plate (11), a bottom plate (16) is installed at the bottom end of the distribution box (4), a second screw conveyor (15) and a first screw conveyor (14) are respectively rotatably connected in the distribution box (4), an insulating tube (8) is fixedly installed on the top wall of the heating tube (1), a plurality of second heating tubes (20) and a first heating tube (9) are respectively rotatably connected in the heating tube (1), and each second heating tube (20) is located in the insulating tube (8), and each first heating tube (9) is located between the outer side of the insulating tube (8) and the inner wall of the heating tube (1), the second screw conveyor (15) is connected to the insulating tube (8) through a conveying mechanism, and the first screw conveyor (14) is connected to the heating tube (1) through a conveying mechanism.

2. The plastic particle feeding device for injection molding machine according to claim 1, characterized in that: The conveying mechanism comprises a first conveying pipe (6) and a second conveying pipe (7), and the first conveying pipe (6) and the second conveying pipe (7) are both fixedly mounted on the side of the material distribution box (4), the first conveying pipe (6) and the second conveying pipe (7) are respectively connected with a first connecting pipe (17) and a second connecting pipe (18), and the first connecting pipe (17) and the second connecting pipe (18) are both connected with the heating tube (1), and the first connecting pipe (17) is connected between the outer side of the heat-insulating tube (8) and the inner wall of the heating tube (1), and the second connecting pipe (18) is connected with the inside of the heat-insulating tube (8).

3. The plastic particle feeding device for injection molding machine according to claim 2, characterized in that: A driving motor (3) is fixedly mounted on the bottom wall of the heating tube (1), and an output shaft of the driving motor (3) passes through the heating tube (1) and extends inwardly, a rotating plate (19) is mounted on the output shaft of the driving motor (3), and the rotating plate (19) is rotatably connected to the bottom wall of the heating tube (1), and the rotating plate (19) is rotatably connected to the heat insulating tube (8), and each second conveying tube (7) and the first heating tube (9) are fixedly mounted on the top surface of the rotating plate (19).

4. The plastic particle feeding device for injection molding machine according to claim 3, characterized in that: The top surface of the material distribution box (4) is connected to a material inlet (5), and the bottom surface of the material distribution box (4) is fixedly mounted with a support seat (2).

5. The plastic pellet feeding device for injection molding machine according to claim 4, characterized in that: The guide plate (10), the filter plate (11) and the bottom plate (16) are all placed at an angle in the material distribution box (4); a flow guide plate (13) is installed on the side wall of the material distribution box (4) and the top surface of the bottom plate (16); and the flow guide plate (13) is in contact with the spiral blades of the first screw conveyor (14).

6. The plastic pellet feeding device for an injection molding machine according to claim 5, characterized in that: The power of each of the second heating tubes (20) is smaller than the power of the first heating tube (9).

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