Plastic injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, in particular to a plastic injection molding machine which comprises an injection molding machine body, a material barrel is arranged on the injection molding machine body, a supporting plate is fixedly connected to the material barrel, a connecting cylinder is rotatably connected to the supporting plate through a bearing, two connecting sleeves are arranged on the connecting cylinder in a communicated mode, and the two connecting sleeves are connected with the injection molding machine body. Two connecting sleeves are arranged on the connecting cylinder, sealing plugs abut against the interiors of the two connecting sleeves, connecting edges are fixedly connected to the sealing plugs, a first cleaning plate and a second cleaning plate are fixedly connected to the two connecting edges respectively, an air pressure adjusting mechanism is arranged on the connecting cylinder, and the connecting cylinder rotates through a rotating mechanism. According to the utility model, the cleaning effect of the inner wall is ensured.

Description

Technical Field

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

[0002] An injection molding machine, also known as an injection molding machine or injection machine, is the primary molding equipment used to create various shapes of plastic products from thermoplastics or thermosetting plastics using plastic molding molds. Available models include vertical, horizontal, and all-electric models. The machine heats the plastic and applies high pressure to the molten plastic, forcing it to eject and fill the mold cavity. After a period of use, the material barrel will become adhered to the walls of the barrel. Conventional cleaning mechanisms, which engage the barrel and perform a rotating cleaning action, scrape off the adhered material. However, prolonged contact can cause the cleaning mechanism to wear out and lose contact with the barrel wall, thus compromising cleaning effectiveness. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art that the cleaning mechanism may be worn and cannot abut against the barrel wall, thereby affecting the cleaning effect, and proposes a plastic injection molding machine.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A plastic injection molding machine is designed, including an injection molding machine body, a material barrel is provided on the injection molding machine body, a support plate is fixedly connected to the material barrel, a connecting cylinder is rotatably connected to the support plate through a bearing, two connecting sleeves are connected and provided on the connecting cylinder, sealing plugs are abutted in the two connecting sleeves, a connecting ridge is fixedly connected to the sealing plug, and the two connecting ridges are respectively fixedly connected to a first cleaning plate and a second cleaning plate, an air pressure regulating mechanism is provided on the connecting cylinder, and the connecting cylinder is rotated by a rotating mechanism.

[0006] Preferably, the rotating mechanism includes a motor, the motor is fixedly connected to the support plate, the motor is transmission-connected to a first gear, the first gear is meshed with a second gear, and the second gear is meshed with the first gear.

[0007] Preferably, the air pressure regulating mechanism includes a connecting block, a threaded rod is threadedly connected to the connecting block, a piston is connected to the threaded rod, and the piston abuts against the inner wall of the connecting cylinder.

[0008] Preferably, the threaded rod is fixedly connected to a rotating part.

[0009] Preferably, the lower end of the threaded rod is rotatably connected to a piston via a bearing.

[0010] Preferably, the first cleaning plate and the second cleaning plate are arc-shaped structures.

[0011] Preferably, the connecting edge abuts against the inner wall of the connecting sleeve.

[0012] The utility model proposes a plastic injection molding machine, which has the beneficial effect that when the first cleaning plate and the second cleaning plate are worn, the air pressure mechanism pushes the sealing plug with air to move, so that the connecting edge moves in the connecting sleeve, and the first cleaning plate and the second cleaning plate are re-contacted on the inner wall, thereby ensuring the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of a plastic injection molding machine proposed by the utility model;

[0014] Figure 2 This is a three-dimensional cross-sectional view of a plastic injection molding machine proposed by the utility model;

[0015] Figure 3 The utility model is a cross-sectional view of the air pressure mechanism of a plastic injection molding machine.

[0016] In the figure: 1. Injection molding machine body; 2. Material barrel; 3. First cleaning plate; 4. Second cleaning plate; 5. Connecting edge; 6. Connecting sleeve; 7. First gear; 8. Threaded rod; 9. Connecting cylinder; 10. Second gear; 11. Connecting block; 12. Sealing plug; 13. Piston; 14. Motor. DETAILED DESCRIPTION

[0017] 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 the embodiments.

[0018] Example 1: Reference Figure 1-3 , a plastic injection molding machine includes an injection molding machine body 1, a material barrel 2 is provided on the injection molding machine body 1, and the material barrel 2 is fixedly connected to a support plate, and a connecting cylinder 9 is rotatably connected to the support plate through a bearing. The connecting cylinder 9 is connected and provided with two connecting sleeves 6. The two connecting sleeves 6 are both abutted with sealing plugs 12, and the sealing plugs 12 are fixedly connected to a connecting ridge 5. The two connecting ridges 5 are respectively fixedly connected to a first cleaning plate 3 and a second cleaning plate 4. The first cleaning plate 3 and the second cleaning plate 4 abut against the inner wall of the material barrel 2. When the first cleaning plate 3 and the second cleaning plate 4 rotate with the connecting cylinder 9, they play a role in cleaning the inner wall. When the first cleaning plate 3 and the second cleaning plate 4 are worn, the pneumatic mechanism pushes the sealing plug 12 with air to move, so that the connecting ridge 5 moves in the connecting sleeve 6, which will make the first cleaning plate 3 and the second cleaning plate 4 abut against the inner wall again, thereby ensuring the cleaning effect.

[0019] An air pressure regulating mechanism is provided on the connecting tube 9. The connecting tube 9 is rotated by a rotating mechanism. The rotating mechanism includes a motor 14. The motor 14 is fixedly connected to the support plate. The motor 14 is transmission-connected to the first gear 7. The first gear 7 is meshed with the second gear 10. The second gear 10 is meshed with the first gear 7 and is rotated by the motor 14 to drive the first gear 7 to rotate. The rotation of the first gear 7 drives the second gear 10 to rotate, thereby rotating the connecting tube 9.

[0020] The air pressure regulating mechanism includes a connecting block 11, a threaded rod 8 is connected to the connecting block 11 through a thread, and a rotating part is fixedly connected to the threaded rod 8. The threaded rod 8 serves to facilitate grasping. A piston 13 is connected to the threaded rod 8, and the piston 13 abuts against the inner wall of the connecting tube 9. By rotating the threaded rod 8, the piston 13 is driven to move downward, and the air in the connecting tube 9 enters the connecting sleeve 6. The air will push the sealing plug 12 to move so as to adjust the pressure of the gas in the connecting tube 9.

[0021] The lower end of the threaded rod 8 is rotatably connected to the piston 13 through a bearing. When the threaded rod 8 is rotated so that the piston 13 does not rotate, the piston 13 only moves in the vertical direction, which helps to reduce wear of the piston 13.

[0022] During use: the piston 13 is driven downward by the threaded rod 8, which will compress the air. The air will push the sealing plug 12 to move, and the connecting edge 5 will move in the connecting sleeve 6, so that the first cleaning plate 3 and the second cleaning plate 4 will be re-contacted on the inner wall. The motor 14 is rotated to drive the first gear 7 to rotate, and the rotation of the first gear 7 drives the second gear 10 to rotate, thereby causing the connecting tube 9 to rotate and remove the material on the barrel wall.

[0023] Example 2: Reference Figure 1-3 As another preferred embodiment of the present invention, based on embodiment 1, the first cleaning plate 3 and the second cleaning plate 4 are arc-shaped structures so that they can fit in with the barrel wall after replacement.

[0024] Example 3: Reference Figure 1-3 As another preferred embodiment of the present invention, based on embodiment 1, the connecting edge 5 abuts against the inner wall of the connecting sleeve 6, preventing material debris from entering through the gap and affecting the movement of the connecting edge 5.

[0025] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plastic injection molding machine, comprising an injection molding machine body (1), wherein a material barrel (2) is provided on the injection molding machine body (1), characterized in that: The material barrel (2) is fixedly connected to a support plate, and a connecting cylinder (9) is rotatably connected to the support plate via a bearing. Two connecting sleeves (6) are connected and provided on the connecting cylinder (9), and sealing plugs (12) are abutted in the two connecting sleeves (6). A connecting ridge (5) is fixedly connected to the sealing plug (12), and the two connecting ridges (5) are respectively fixedly connected to the first cleaning plate (3) and the second cleaning plate (4). An air pressure regulating mechanism is provided on the connecting cylinder (9), and the connecting cylinder (9) is rotated by a rotating mechanism.

2. A plastic injection molding machine according to claim 1, characterized in that: The rotating mechanism comprises a motor (14), the motor (14) is fixedly connected to the support plate, the motor (14) is transmission-connected to a first gear (7), the first gear (7) is meshed with a second gear (10), and the second gear (10) is meshed with the first gear (7).

3. A plastic injection molding machine according to claim 1, characterized in that: The air pressure regulating mechanism comprises a connecting block (11), a threaded rod (8) is threadedly connected to the connecting block (11), a piston (13) is connected to the threaded rod (8), and the piston (13) abuts against the inner wall of the connecting cylinder (9).

4. A plastic injection molding machine according to claim 3, characterized in that: The threaded rod (8) is fixedly connected to the rotating part.

5. A plastic injection molding machine according to claim 4, characterized in that: The lower end of the threaded rod (8) is rotatably connected to a piston (13) via a bearing.

6. A plastic injection molding machine according to claim 4, characterized in that: The first cleaning plate (3) and the second cleaning plate (4) are arc-shaped structures.

7. A plastic injection molding machine according to claim 4, characterized in that: The connecting edge (5) abuts against the inner wall of the connecting sleeve (6).

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