Screw pushing device of injection molding machine

Abstract

A screw pushing device of an injection molding machine belongs to the technical field of injection molding machine screw pushing devices and comprises a feeding device, a sealing cover plate, a rotating motor, a connecting upper rod, stirring horizontal columns, a connecting lower rod and helical blades. The upper surface of the feeding device is connected with the sealing cover plate at the center, the upper surface of the sealing cover plate is connected with the rotating motor at the center, the lower surface of the sealing cover plate is inserted with the connecting upper rod at the center, the side surface of the connecting upper rod is symmetrically connected with a plurality of stirring horizontal columns in vertical rows on the left and right, the lower surface of the connecting upper rod is inserted with the connecting lower rod at the center, and the side surface of the connecting lower rod is inserted with the helical blades around. The feeding container can be heated while feeding, and the stirrer can be arranged separately from the feeder.

Description

Technical Field

[0001] This utility model relates to a screw pushing device for an injection molding machine, belonging to the technical field of screw pushing equipment for injection molding machines. Background Technology

[0002] Existing injection molding machine feeding devices have slow feeding speeds, making it easy for raw materials in the discharge container to solidify. Furthermore, the agitator and feeding blades in existing injection molding machines are on the same rotating rod, which cannot be separated when replacing the agitator or feeding blades. The entire rotating rod needs to be disassembled and replaced, which is inconvenient for operators. Utility Model Content

[0003] The purpose of this utility model is to allow operators to heat the material feeding container while feeding the material into the injection molding machine, preventing the raw material from solidifying due to slow feeding. Furthermore, the agitator and feeder can be separated, allowing for individual replacement of either the agitator or the feeder during operation, simplifying the process. The technical solution is as follows:

[0004] A screw pushing device for an injection molding machine includes a feeding device 1, a sealing cover plate 2, a rotating motor 3, a connecting upper rod 4, stirring crossbars 5, a connecting lower rod 6, and spiral blades 7. The feeding device 1 has a sealing cover plate 2 connected to its upper surface center; the sealing cover plate 2 has a rotating motor 3 connected to its upper surface center; the connecting upper rod 4 is inserted into the lower surface center of the sealing cover plate 2; several stirring crossbars 5 are symmetrically connected in vertical rows on the left and right sides of the connecting upper rod 4; and the connecting upper rod 4 has a spiral blade 7 inserted into its lower surface center. The device is equipped with a connecting rod 6, with spiral blades 7 inserted around its side surface. The feeding device 1 includes a can 1-1, an outer cavity 1-2, an inner cavity 1-3, and a heating tube 1-4. The outer cavity 1-2 is located on the outer side of the inner surface of the can 1-1, and the inner cavity 1-3 is located on the inner side of the inner surface of the can 1-1. The heating tube 1-4 is spirally wound around the inside of the inner cavity 1-3. The outer cavity 1-2 is in a vacuum state. The can 1-1 is funnel-shaped. The size and shape of the sealing cover 2 are the same as those of the can 1-1. 1. The size and shape of the upper surface are mutually matched. The connecting rod 4 includes an upper column 4-1, a slot 4-2, a groove 4-3, and a threaded hole 4-4. The slot 4-2 is provided at the center of the lower surface of the upper column 4-1. The groove 4-3 is provided at the center of the upper surface inside the slot 4-2. The threaded hole 4-4 is provided in the middle of the inner side surface of the groove 4-3. The upper end of the upper column 4-1 is inserted into the center of the lower surface of the sealing cover plate 2. The rotating end of the rotating motor 3 is connected to the upper surface of the upper column 4-1. The threaded hole 4-4 is located inside the threaded hole 4-4. The connecting rod 6, which is fitted with a set screw, includes a lower post 6-1, a threaded post 6-2, a retaining post 6-3, and a rubber pad 6-4. The threaded post 6-2 is connected to the center of the upper surface of the lower post 6-1, the retaining post 6-3 is connected to the center of the upper surface of the threaded post 6-2, and the rubber pad 6-4 is connected to the center of the upper surface of the retaining post 6-3. The threaded post 6-2 is inserted into the slot 4-2, and the retaining post 6-3 is inserted into the groove 4-3. The outer diameter of the lower post 6-1 matches the outer diameter of the upper post 4-1.

[0005] The beneficial effects of this utility model are as follows: the operator can heat the inside of the feeding container while feeding the material into the injection molding machine, which can prevent the raw material from solidifying due to slow feeding. In addition, the operator can set the agitator and the feeder separately, and can replace the agitator or the feeder separately when changing, which is convenient for the operator to operate. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0007] Figure 2 This is a schematic diagram of the feeding device 1 of this utility model;

[0008] Figure 3This is a schematic diagram of the connecting rod 4 of this utility model;

[0009] Figure 4 This is a schematic diagram of the connecting rod 6 of this utility model. Detailed Implementation

[0010] Reference Figure 1 Figure 2 Figure 3 Figure 4 The screw pushing device of the injection molding machine includes a feeding device 1, a sealing cover plate 2, a rotating motor 3, a connecting upper rod 4, stirring crossbars 5, a connecting lower rod 6, and spiral blades 7. The feeding device 1 is characterized in that: a sealing cover plate 2 is connected to the center of its upper surface; a rotating motor 3 is connected to the center of the upper surface of the sealing cover plate 2; a connecting upper rod 4 is inserted into the center of the lower surface of the sealing cover plate 2; several stirring crossbars 5 are symmetrically connected in vertical rows on the left and right sides of the connecting upper rod 4; and a connecting upper rod 4 has a spiral blade 7. A connecting rod 6 is inserted, and spiral blades 7 are inserted around the side surface of the connecting rod 6. The feeding device 1 includes a can 1-1, an outer cavity 1-2, an inner cavity 1-3, and a heating tube 1-4. The outer cavity 1-2 is located on the outer side of the side surface of the can 1-1, and the inner cavity 1-3 is located on the inner side of the side surface of the can 1-1. The heating tube 1-4 is spirally wound around the inside of the inner cavity 1-3. The outer cavity 1-2 is in a vacuum state. The can 1-1 is funnel-shaped. The size and shape of the sealing cover 2 are the same as those of the can 1-1. -1 The size and shape of the upper surface are matched with each other. The connecting rod 4 includes an upper column 4-1, a slot 4-2, a groove 4-3, and a threaded hole 4-4. The slot 4-2 is provided at the center of the lower surface of the upper column 4-1. The groove 4-3 is provided at the center of the upper surface inside the slot 4-2. The threaded hole 4-4 is provided in the middle of the inner side surface of the groove 4-3. The upper end of the upper column 4-1 is inserted into the center of the lower surface of the sealing cover plate 2. The rotating end of the rotating motor 3 is connected to the upper surface of the upper column 4-1. The threaded hole 4-4 The connecting rod 6, which is equipped with a set screw, includes a lower post 6-1, a threaded post 6-2, a retaining post 6-3, and a rubber pad 6-4. The threaded post 6-2 is connected to the center of the upper surface of the lower post 6-1, the retaining post 6-3 is connected to the center of the upper surface of the threaded post 6-2, and the rubber pad 6-4 is connected to the center of the upper surface of the retaining post 6-3. The threaded post 6-2 is inserted into the slot 4-2, and the retaining post 6-3 is inserted into the retaining groove 4-3. The outer diameter of the lower post 6-1 matches the outer diameter of the upper post 4-1.

[0011] In use, the operator inserts the threaded post 6-2 on the lower connecting rod 6 into the slot 4-2 on the upper connecting rod 4, then rotates the lower post 6-1 to make the threaded post 6-3 rotate in the slot 4-2, and tightens the threaded post 6-3 in the slot 4-2. At the same time, the locking post 6-3 is inserted into the slot 4-3 and the rubber pad 6-4 cushions the locking post 6-3 from pressing against the upper surface of the slot 4-3. Then, the set screw is inserted into the threaded hole 4-4 and tightened to fix the locking post 6-3 in the slot 4-3. Then, the upper post 4-1 and the lower post 6-1 are inserted into the tank 1-1 on the feeding device 1, and the sealing cover 2 is tightened on the upper surface of the tank 1-1. Finally, the rotating motor 3 is started, and the rotating end of the motor 3 drives the upper post 4-1 and the lower post 6-1 to rotate. At the same time, the upper post 4-1 drives the stirring cross column 5 to rotate to stir the injection molding material, and the lower post 6-1 drives the spiral blade 7 to rotate to push the injection molding material out of the tank.

[0012] During use, the heating element 1-4 is powered on to heat the inside of the can 1-1, while the vacuum inside the outer cavity 1-2 reduces heat loss.

[0013] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A screw pushing device for an injection molding machine, comprising a feeding device (1), a sealing cover plate (2), a rotating motor (3), a connecting upper rod (4), a stirring crossbar (5), a connecting lower rod (6), and spiral blades (7), characterized in that: A sealing cover plate (2) is connected to the center of the upper surface of the feeding device (1). A rotating motor (3) is connected to the center of the upper surface of the sealing cover plate (2). A connecting rod (4) is inserted into the center of the lower surface of the sealing cover plate (2). Several stirring columns (5) are symmetrically connected in a vertical row on the left and right sides of the side surface of the connecting rod (4). A connecting rod (6) is inserted into the center of the lower surface of the connecting rod (4). Spiral blades (7) are inserted around the side surface of the connecting rod (6).

2. The screw pushing device for an injection molding machine according to claim 1, characterized in that: The feeding device (1) includes a can (1-1), an outer cavity (1-2), an inner cavity (1-3), and a heating tube (1-4). The outer cavity (1-2) is provided on the inner side of the side surface of the can (1-1), and the inner cavity (1-3) is provided on the inner side of the side surface of the can (1-1). The heating tube (1-4) is spirally wound around the inside of the inner cavity (1-3). The outer cavity (1-2) is in a vacuum state. The can (1-1) is funnel-shaped. The size and shape of the sealing cover (2) are matched with the size and shape of the upper surface of the can (1-1).

3. The screw pushing device for an injection molding machine according to claim 1, characterized in that: The connecting rod (4) includes an upper column (4-1), a slot (4-2), a groove (4-3), and a threaded hole (4-4). The upper column (4-1) has a slot (4-2) at the center of its lower surface. The slot (4-2) has a groove (4-3) at the center of its upper surface. The groove (4-3) has a threaded hole (4-4) at the middle of its inner side surface. The upper end of the upper column (4-1) is inserted into the center of the lower surface of the sealing cover plate (2). The rotating end of the rotating motor (3) is connected to the upper surface of the upper column (4-1). A set screw is inserted into the threaded hole (4-4).

4. The screw pushing device for an injection molding machine according to claim 3, characterized in that: The connecting rod (6) includes a lower post (6-1), a threaded post (6-2), a retaining post (6-3), and a rubber pad (6-4). The threaded post (6-2) is connected to the center of the upper surface of the lower post (6-1), the retaining post (6-3) is connected to the center of the upper surface of the threaded post (6-2), and the rubber pad (6-4) is connected to the center of the upper surface of the retaining post (6-3). The threaded post (6-2) is inserted into the slot (4-2), and the retaining post (6-3) is inserted into the retaining groove (4-3). The outer diameter of the lower post (6-1) matches the outer diameter of the upper post (4-1).

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