Melting and injection molding all-in-one machine for PET processing

Abstract

The utility model relates to the field of melting and injection molding all-in-one machines, in particular to a melting and injection molding all-in-one machine for PET (Polyethylene Terephthalate) processing, which is characterized in that a hopper is fixedly arranged at the upper end of a charging barrel, is used for putting raw materials into the charging barrel, and is sleeved outside the charging barrel through a heating ring; the heating ring can heat raw materials in the charging barrel to enable the raw materials to reach a melting point so that the raw materials can be melted, then the charging barrel can rotate under the action of the rotating mechanism, so that the raw materials in the charging barrel can be heated more uniformly, the injection mechanism is connected with one side of the feeding barrel, and a solution in the feeding barrel can flow into the injection mechanism, so that the injection efficiency is improved. In order to prevent small raw materials which are not completely dissolved during rotation of the heated part from entering the injection barrel, an electric heating wire is wound outside the injection barrel, so that the raw materials which are not completely dissolved in the injection barrel can be dissolved, finally, under the work of the air cylinder, the injection mechanism can inject molten liquid into the mold bin, and the injection efficiency is improved. And finally, the purpose of melting injection molding can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of melting and injection molding integrated machines, in particular to a melting and injection molding integrated machine for PET processing. Background Art

[0002] PET (polyethylene terephthalate) is a commonly used plastic material, which is often used to make bottles, fibers, films, containers and other applications. In order to process PET into the desired products, a melter and an injection molding machine are usually required, that is, PET is heated and melted for injection molding, extrusion, blow molding or other processing techniques. However, when the PET melter and the injection molding machine are set up separately, additional space is required to accommodate the two devices, which may lead to layout and management problems in the workplace. Using the two devices separately may also increase maintenance and repair costs, because two different devices need to be maintained separately, which may require more time and resources, thereby increasing manpower and reducing work efficiency. Utility Model Content

[0003] The utility model aims to provide a melting and injection molding integrated machine for PET processing.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] Provided is a melting and injection molding integrated machine for PET processing, comprising a mold bin and two supporting columns, the two supporting columns are vertically fixed to the upper end of the mold bin, and the upper end of the mold bin is provided with a through hole for injecting molten plastic, and also comprises a heating ring, a barrel, a hopper, a rotating mechanism, an injection mechanism, a cylinder and a support frame, the heating ring is horizontally fixedly arranged on the upper end of one supporting column, the barrel is horizontally fixedly arranged on the upper end of another supporting column, and the barrel is inserted into the heating ring, the upper end of the barrel is fixedly provided with a hopper, the rotating mechanism is fixedly arranged on the outer wall of the barrel for driving the barrel to rotate, the injection mechanism is fixedly arranged on one end of the feed barrel, the piston of the injection mechanism is fixedly connected to the output end of the cylinder, the cylinder is fixedly arranged on the support frame through a cylinder fixing member, and the support frame is fixedly arranged on the mold bin.

[0006] Furthermore, a circle of heating belt is arranged on the inner wall of the heating ring.

[0007] Furthermore, the barrel includes a feed end, a discharge end and a heating part, the feed end and the discharge end are respectively arranged at the two ends of the heating part, and the heating part is rotatably connected to the feed end and the discharge end, the hopper is fixedly inserted on the feed end, and a small discharge port is fixedly arranged on one side of the discharge end.

[0008] Furthermore, the rotating mechanism includes a base, a motor, a gear and a gear ring. The base is fixedly arranged on the outer wall of the discharge end, the motor is fixedly arranged on the base, the output end of the motor is fixedly connected to the middle part of the gear, the gear ring is fixedly installed on the outer wall of the heating part, and the gear is meshed with the gear ring.

[0009] Furthermore, the injection mechanism also includes an injection cylinder and a nozzle. The middle part of the injection cylinder is vertically fixedly connected to the discharge port. The lower end of the injection cylinder is fixedly provided with a nozzle, which is inserted into the through hole at the upper end of the mold bin. The piston is slidably arranged inside the injection cylinder.

[0010] Furthermore, a heating wire is wound around the outside of the injection cylinder, and a heat-resistant rubber sleeve is sleeved on the outside of the injection cylinder.

[0011] The beneficial effects of the utility model are as follows: the hopper is fixedly arranged at the upper end of the barrel, and the hopper is used to put the raw material into the barrel, and then the heating ring is sleeved on the outside of the barrel, so that the heating ring can heat the raw material in the barrel to make it melt when it reaches the melting point, and then the barrel can be rotated under the action of the rotating mechanism, so that the raw material in the barrel can be heated more evenly, and since the injection mechanism is connected to one side of the feed barrel, the solution in the feed barrel can flow into the injection mechanism, and in order to prevent small raw materials that are not completely melted when the heated part rotates from entering the injection barrel, an electric heating wire is wound around the outside of the injection barrel, so that the raw materials that are not completely melted in the injection barrel can be melted, and finally under the operation of the cylinder, the injection mechanism can inject the molten liquid into the mold bin, and finally the purpose of melt injection molding can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the following is a brief introduction to the drawings required to be used in the embodiment of the utility model.

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 for Figure 1 A magnified schematic diagram of point A;

[0015] Figure 3 It is a front view schematic diagram of the utility model;

[0016] Figure 4 It is a partial schematic diagram of the utility model;

[0017] Figure 5 for Figure 4 Schematic cross-sectional view along BB;

[0018] In the figure: 1. mold bin; 2. support column; 11. through hole; 3. heating ring; 4. barrel; 5. hopper; 6. rotating mechanism; 7. injection mechanism; 8. cylinder; 9. support frame; 91. fixing part; 31. heating belt; 41. feeding end; 42. discharging end; 43. heating part; 44. small discharging port; 61. base; 62. motor; 63. gear; 64. gear ring; 71. injection barrel; 72. nozzle; 73. piston; 74. heating wire; 75. heat-resistant rubber sleeve. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0020] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product.

[0021] Reference Figures 1 to 4 The shown one kind of melting and injection molding machine for PET processing includes a mold bin 1 and two support columns 2, the two support columns 2 are vertically fixed to the upper end of the mold bin 1, and the upper end of the mold bin 1 is provided with a through hole 11 for injecting molten plastic, and also includes a heating ring 3, a barrel 4, a hopper 5, a rotating mechanism 6, an injection mechanism 7, a cylinder 8 and a support frame 9, the heating ring 3 is horizontally fixedly arranged on the upper end of one support column 2, the barrel 4 is horizontally fixedly arranged on the upper end of another support column 2, and the barrel 4 is inserted into the interior of the heating ring 3, the upper end of the barrel 4 is fixedly provided with a hopper 5, the rotating mechanism 6 is fixedly arranged on the outer wall of the barrel 4 for driving the barrel 4 to rotate, the injection mechanism 7 is fixedly arranged at one end of the feed barrel 4, the piston 73 of the injection mechanism 7 is fixedly connected to the output end of the cylinder 8, the cylinder 8 is fixedly arranged on the support frame 9 through a fixing member 91, and the support frame 9 is fixedly arranged on the mold bin 1. The hopper 5 is fixedly arranged at the upper end of the barrel 4, and the hopper 5 is used to put the raw material into the barrel 4. The heating ring 3 is then sleeved on the outside of the barrel 4, and the heating ring 3 can heat the raw material in the barrel 4 to make it melt when it reaches the melting point. Then, under the action of the rotating mechanism 6, the barrel 4 can be rotated, so that the raw material in the barrel 4 can be heated more evenly. Since the injection mechanism 7 is connected to one side of the feed barrel 4, the solution in the feed barrel 4 can flow into the injection mechanism 7. Under the operation of the cylinder 8, the injection mechanism 7 can inject the molten liquid into the mold bin 1.

[0022] The inner wall of the heating ring 3 is provided with a circle of heating belt 31. The heating belt 31 is closely attached to the inner surface of the heating ring 3, and when the current passes through, they generate heat, which is then transferred to the feed barrel 4, and then the barrel 4 heats the raw materials.

[0023] The barrel 4 includes a feed end 41, a discharge end 42 and a heated portion 43. The feed end 41 and the discharge end 42 are respectively arranged at the two ends of the heated portion 43, and the heated portion 43 is rotatably connected with the feed end 41 and the discharge end 42. The hopper 5 is fixedly inserted on the feed end 41, and a small discharge port 44 is fixedly arranged on one side of the discharge end 42. The heated portion 43 is arranged at both ends of the feed end 41 and the discharge end 42, and the heated end can be rotated by a rotating mechanism 6. In order to prevent the unmelted raw materials in the barrel 4 from entering the injection mechanism 7 during rotation, a small discharge port 44 is fixedly arranged on one side of the discharge end 42.

[0024] The rotating mechanism 6 includes a base 61, a motor 62, a gear 63 and a gear ring 64. The base 61 is fixedly arranged on the outer wall of the discharge end 42, the motor 62 is fixedly arranged on the base 61, the output end of the motor 62 is fixedly connected to the middle of the gear 63, the gear ring 64 is fixedly installed on the outer wall of the heat receiving part 43, and the gear 63 is meshed with the gear ring 64. When the motor 62 is working, the output end of the motor 62 drives the gear 63 to rotate, and the gear 63 is meshed with the gear ring 64. Because the gear ring 64 is installed on the outer wall of the heat receiving part 43, the motor 62 can drive the heat receiving part 43 to rotate, so that the raw materials in the barrel 4 are heated more evenly.

[0025] The injection mechanism also includes a syringe 71 and a nozzle 72. The middle of the syringe 71 is vertically fixedly connected to the discharge port. The lower end of the syringe 71 is fixedly provided with a nozzle 72, which is inserted into the through hole 11 at the upper end of the mold bin 1. The piston 73 is slidably provided inside the syringe 71. Since the middle of the syringe 71 is vertically fixedly connected to the discharge port, the solution in the barrel 4 can flow into the syringe 71. Since the piston 73 of the injection mechanism 7 is fixedly connected to the output end of the cylinder 8, the piston 73 can be slidably provided inside the syringe 71. When the cylinder 8 works, it drives the piston 73 to move, and the solution inside the syringe 71 can be injected into the mold bin 1 through the nozzle 72.

[0026] The outside of the injection barrel 71 is wound with a heating wire 74, and the outside of the injection barrel 71 is covered with a heat-resistant rubber sleeve 75. In order to prevent the small raw materials that are not completely melted from entering the injection barrel 71 when the heated part 43 rotates, the outside of the injection barrel 71 is wound with a heating wire 74. When current passes through, the resistance wire generates heat, so that the raw materials that are not completely melted in the injection barrel 71 can be melted.

[0027] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A melt injection molding machine for PET processing, comprising a mold bin (1) and two support columns (2), wherein the two support columns (2) are vertically fixed to the upper end of the mold bin (1), and the upper end of the mold bin (1) is provided with a through hole (11) for injecting molten plastic, characterized in that: It also includes a heating ring (3), a barrel (4), a hopper (5), a rotating mechanism (6), an injection mechanism (7), a cylinder (8) and a support frame (9), wherein the heating ring (3) is horizontally fixedly arranged on the upper end of a support column (2), the barrel (4) is horizontally fixedly arranged on the upper end of another support column (2), and the barrel (4) is inserted into the interior of the heating ring (3), the upper end of the barrel (4) is fixedly provided with a hopper (5), the rotating mechanism (6) is fixedly arranged on the outer wall of the barrel (4) for driving the barrel (4) to rotate, the injection mechanism (7) is fixedly arranged on one end of the feed barrel (4), the piston (73) of the injection mechanism (7) is fixedly connected to the output end of the cylinder (8), the cylinder (8) is fixedly arranged on the support frame (9) through a cylinder fixing member (91), and the support frame (9) is fixedly arranged on the mold bin (1).

2. The melting and injection molding integrated machine for PET processing according to claim 1, characterized in that: The inner wall of the heating ring (3) is provided with a circle of heating belt (31).

3. The melting and injection molding integrated machine for PET processing according to claim 2, characterized in that: The barrel (4) comprises a feed end (41), a discharge end (42) and a heated portion (43); the feed end (41) and the discharge end (42) are respectively arranged at two ends of the heated portion (43), and the heated portion (43) is rotatably connected to the feed end (41) and the discharge end (42); the hopper (5) is fixedly inserted on the feed end (41), and a small discharge port (44) is fixedly arranged on one side of the discharge end (42).

4. The melting and injection molding integrated machine for PET processing according to claim 3, characterized in that: The rotating mechanism (6) comprises a base (61), a motor (62), a gear (63) and a gear ring (64); the base (61) is fixedly arranged on the outer wall of the discharge end (42); the motor (62) is fixedly arranged on the base (61); the output end of the motor (62) is fixedly connected to the middle part of the gear (63); the gear ring (64) is fixedly installed on the outer wall of the heat receiving part (43); and the gear (63) is meshed with the gear ring (64).

5. The melting and injection molding integrated machine for PET processing according to claim 4, characterized in that: The injection mechanism (7) further comprises an injection cylinder (71) and a nozzle (72); the middle portion of the injection cylinder (71) is vertically fixedly connected to the discharge port; the lower end of the injection cylinder (71) is fixedly provided with the nozzle (72); the nozzle (72) is inserted into the through hole (11) at the upper end of the mold bin (1); and the piston (73) is slidably provided inside the injection cylinder (71).

6. The melting and injection molding integrated machine for PET processing according to claim 5, characterized in that: The outside of the injection cylinder (71) is wound with an electric heating wire (74), and the outside of the injection cylinder (71) is sheathed with a heat-resistant rubber sleeve (75).

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