Plastic part injection molding device with returned material utilization function

Abstract

The utility model relates to the related field of plastic part injection molding devices, in particular to a plastic part injection molding device with a returned material utilization function, which comprises a device body, a workbench is arranged in the device body, an extruder is arranged at the upper end of the workbench, and the upper end of the extruder is connected with a raw material barrel. An upper cover plate is arranged at the top of the raw material barrel, a first motor is inversely arranged on the upper cover plate, the driving end of the first motor penetrates through the upper cover plate to be connected with an inclined connecting rod, a second motor is fixed to the other end of the inclined connecting rod, the lower end of the second motor is connected with a rotating shaft, a plurality of smashing cutters are arranged on the rotating shaft, and the discharging end of the extruder is connected with a lower die base. And an upper mold base is arranged at the outer end of the workbench, so that preheating, stirring and crushing of raw materials can be realized, the heating and extrusion smoothness of the raw materials can be conveniently kept, the influence on the injection molding quality and progress due to blockage of the raw materials is avoided, circulating pumping operation of cooling liquid can be realized, the cooling water circulating time is long, and the contact area is large.

Description

Technical Field

[0001] The utility model relates to the related field of plastic part injection molding devices, in particular to a plastic part injection molding device with a recycled material utilization function. Background Art

[0002] The injection molding process refers to the process of making semi-finished products of a certain shape by pressurizing, injecting, cooling, and separating the molten raw materials. The injection molding process mainly includes six stages: mold closing - filling - pressure holding - cooling - mold opening - demoulding. These six stages directly determine the molding quality of the product, and these six stages are a complete continuous process;

[0003] In the prior art, most plastic part injection molding devices heat and extrude the raw materials through an extruder, and then perform injection molding operations through mold closing. However, the raw materials do not have the ability to be stirred and crushed when entering the extruder, and it is easy for the raw materials to be blocked or heated inadequately, requiring manual conduction maintenance. At the same time, it will reduce the heating efficiency of the raw materials and the processing quality of the injection molded parts, and easily lead to unqualified products. Although the existing injection molding devices can achieve the cooling effect on the injection molded parts, most of their coolants are not effective, the contact area between the coolant and the mold base is small, and the coolant does not have a continuous circulation effect. This will cause the injection molded parts to still have a certain temperature when demolding, which is inconvenient to demold and prone to deformation. Therefore, we need to upgrade and transform on the basis of the existing technology to overcome the existing problems and shortcomings. Utility Model Content

[0004] The purpose of the utility model is to provide a plastic part injection molding device with a recycled material utilization function to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A plastic part injection molding device with a recycling function is designed, comprising a device body, wherein the device body contains a workbench, an extruder is installed at the upper end of the workbench and a raw material barrel is connected to the upper end of the extruder, an upper cover plate is provided on the top of the raw material barrel and a first motor is inverted on the upper cover plate, a driving end of the first motor passes through the upper cover plate and is connected to an oblique connecting rod, a second motor is fixed to the other end of the oblique connecting rod, a rotating shaft is connected to the lower end of the second motor and a plurality of crushing knives are provided on the rotating shaft, a lower die seat is connected to the discharge end of the extruder, an upper die seat is provided at the outer end of the workbench and the upper die seat corresponds to the lower die seat, an inner groove is opened inside the lower die seat and a water storage tank is provided at the lower end, a water pump is provided at the upper end of the water storage tank and a circulation pipe is connected to the upper end of the water pump, and the circulation pipe is installed in the inner groove.

[0007] Furthermore, a plurality of heating tubes are sleeved on the outer side of the extruder, and a controller is connected to one side of the heating tubes.

[0008] Furthermore, a mounting sleeve is fixed on the outer side of the raw material barrel, and a fixing frame is connected to the lower end of the mounting sleeve.

[0009] Furthermore, a preheating layer is provided in the inner wall of the raw material barrel, and a feeder is connected between the raw material barrel and the extruder.

[0010] Furthermore, a water inlet is provided at an upper end of one side of the water storage tank, and a water outlet is provided at a lower end of one side of the water storage tank.

[0011] Furthermore, the outer end of the circulation pipe passes through the inner groove and is connected to the water tank, and the circulation pipe has an S-shaped structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a raw material barrel, a mounting sleeve, a fixing frame, a preheating layer, an upper cover plate, a first motor, an oblique connecting rod, a second motor, a rotating shaft and a crushing knife in the device, so as to realize the preheating and stirring and crushing operations of the raw materials, facilitate the maintenance of the heating and extrusion of the raw materials, avoid the blockage problem and affect the injection molding quality and progress, and improve the practicability and injection molding efficiency of the device.

[0014] 2. The utility model is equipped with a lower mold base, an upper mold base, a water storage tank, a water pump, a circulation pipe, a water inlet, a drain outlet and an inner groove in the device, which can realize the circulation pumping operation of the coolant, facilitate the rapid cooling and molding operation of the injection molded parts in the lower mold base, and the cooling water circulation time is long and the contact area is large, which improves the injection molding efficiency of the device and avoids the problems of poor natural cooling effect and long time consumption.

[0015] With reference to the following description and drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications and equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of a plastic part injection molding device with a recycled material utilization function according to the utility model;

[0018] Figure 2 This is an exploded view of the extruder structure of a plastic part injection molding device with a recycling material utilization function according to the utility model;

[0019] Figure 3 This is an exploded view of the raw material barrel structure of a plastic part injection molding device with a material recycling function according to the utility model;

[0020] Figure 4 The present invention is a cooling structure exploded view of a plastic part injection molding device with a material recycling function according to the present invention.

[0021] In the figure: 1. device body; 2. workbench; 3. extruder; 31. controller; 32. heating tube; 4. raw material barrel; 41. mounting sleeve; 42. fixing frame; 43. preheating layer; 5. upper cover plate; 6. first motor; 7. oblique connecting rod; 8. second motor; 9. rotating shaft; 10. crushing knife; 11. feeder; 12. lower die seat; 13. upper die seat; 14. water tank; 15. water pump; 16. circulation pipe; 17. water inlet; 18. drain outlet; 19. inner groove. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1 As shown in Figure 4, the present embodiment provides a plastic part injection molding device with a recycling function, comprising a device body 1, a workbench 2 included in the device body 1, an extruder 3 is installed on the upper end of the workbench 2, and the upper end of the extruder 3 is connected to a raw material barrel 4, an upper cover plate 5 is provided on the top of the raw material barrel 4, and a first motor 6 is inverted on the upper cover plate 5, the driving end of the first motor 6 passes through the upper cover plate 5 and is connected to an oblique connecting rod 7, a second motor 8 is fixed to the other end of the oblique connecting rod 7, a rotating shaft 9 is connected to the lower end of the second motor 8, and a plurality of crushing knives 10 are provided on the rotating shaft 9, a lower die seat 12 is connected to the discharge end of the extruder 3, an upper die seat 13 is provided at the outer end of the workbench 2, and the upper die seat 13 corresponds to the lower die seat 12, an inner groove 19 is opened inside the lower die seat 12, and a water storage tank 14 is provided at the lower end, a water pump 15 is provided at the upper end of the water storage tank 14, and a circulation pipe 16 is connected to the upper end of the water pump 15, and the circulation pipe 16 is installed in the inner groove 19.

[0024] Preferably, a plurality of heating tubes 32 are provided on the outer side of the extruder 3, and a controller 31 is connected to one side of the heating tubes 32. Through the cooperation between the heating tubes 32 and the controller 31, the return material inside the extruder 3 can be reheated for use to avoid waste of raw materials. A mounting sleeve 41 is fixed on the outer side of the raw material barrel 4, and a fixing frame 42 is connected to the lower end of the mounting sleeve 41. The mounting sleeve 41 and the fixing frame 42 facilitate support and placement of the raw material barrel 4. A preheating layer 43 is provided in the inner wall of the raw material barrel 4, and a feeder 11 is connected between the raw material barrel 4 and the extruder 3. The preheating layer 43 facilitates auxiliary preheating of the raw material, facilitates subsequent heating injection molding, and improves the injection molding heating efficiency.

[0025] Preferably, a water inlet 17 is provided at the upper end of one side of the water tank 14, and a drain outlet 18 is provided at the lower end of one side of the water tank 14. The water inlet 17 and the drain outlet 18 are convenient for respectively filling and draining the coolant from the water tank 14. The outer end of the circulation pipe 16 passes through the inner groove 19 and is connected to the water tank 14. The circulation pipe 16 has an S-shaped structure. The circulation pipe 16 arranged in the S-shaped structure is convenient for increasing the contact area and time between the coolant and the lower mold base 12. At the same time, the circulation pipe 16 arranged through the penetration can continuously maintain the circulation state of the coolant.

[0026] The use principle and use process of the utility model are as follows: when in use, firstly, the first motor 6 is controlled to work through an external power supply, the first motor 6 drives the oblique connecting rod 7 to rotate, and the oblique connecting rod 7 drives the second motor 8 and the rotating shaft 9 to rotate and move around the inside of the raw material barrel 4, and at the same time, the second motor 8 is turned on, and the second motor 8 drives the rotating shaft 9 and the crushing knife 10 to rotate, which can effectively crush the raw materials in the raw material barrel 4, avoiding the problem of material discharge or extrusion blockage caused by excessive raw material particles. In this process, the preheating layer 43 can be turned on to preheat the inside of the raw material barrel 4 to improve the heating efficiency of the raw materials. , which is convenient for improving the injection molding efficiency. During the injection molding process, the lower mold base 13 and the upper mold base 12 are molded together, and then the extruder 3 extrude the heated raw material into the lower mold base 12 for molding. At this time, the water pump 15 can be turned on. The water pump 15 draws coolant from the water tank 14 and pumps it into the circulation pipe 16. The coolant passes through the S-shaped circulation pipe 16 in the inner groove 19 for one circle, and then returns to the water tank 14 through the other end of the circulation pipe 16, which can achieve rapid cooling of the lower mold base 12, facilitate rapid cooling and molding of the internal injection molded parts, save processing time, and improve injection molding efficiency.

[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] In the description of this embodiment, the terms "upper", "lower", "right", etc., are based on the directions or positions shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

Claims

1. A plastic injection molding device with a recycled material utilization function, characterized in that: The device comprises a device body (1), wherein the device body (1) contains a workbench (2), an extruder (3) is installed on the upper end of the workbench (2), and the upper end of the extruder (3) is connected to a raw material barrel (4), an upper cover plate (5) is provided on the top of the raw material barrel (4), and a first motor (6) is inverted on the upper cover plate (5), a driving end of the first motor (6) passes through the upper cover plate (5) and is connected to an oblique connecting rod (7), a second motor (8) is fixed to the other end of the oblique connecting rod (7), and a rotating shaft (9) is connected to the lower end of the second motor (8) A plurality of crushing knives (10) are arranged on the rotating shaft (9); the discharge end of the extruder (3) is connected to a lower die base (12); an upper die base (13) is arranged at the outer end of the workbench (2), and the upper die base (13) corresponds to the lower die base (12); an inner groove (19) is provided inside the lower die base (12), and a water storage tank (14) is arranged at the lower end; a water pump (15) is arranged at the upper end of the water storage tank (14), and a circulation pipe (16) is connected to the upper end of the water pump (15); and the circulation pipe (16) is installed in the inner groove (19).

2. The plastic part injection molding device with the function of recycling materials according to claim 1, characterized in that: The outer side of the extruder (3) is sleeved with a plurality of heating tubes (32), and one side of the heating tubes (32) is connected to a controller (31).

3. The plastic part injection molding device with the function of recycling materials according to claim 1, characterized in that: A mounting sleeve (41) is fixed on the outside of the raw material barrel (4), and a fixing frame (42) is connected to the lower end of the mounting sleeve (41).

4. The plastic part injection molding device with the function of recycling materials according to claim 1, characterized in that: A preheating layer (43) is provided in the inner wall of the raw material barrel (4), and a feeder (11) is connected between the raw material barrel (4) and the extruder (3).

5. The plastic part injection molding device with the function of recycling materials according to claim 1, characterized in that: A water inlet (17) is provided at the upper end of one side of the water storage tank (14), and a water outlet (18) is provided at the lower end of one side of the water storage tank (14).

6. The plastic part injection molding device with the function of recycling materials according to claim 1, characterized in that: The outer end of the circulation pipe (16) passes through the inner groove (19) and is connected to the water storage tank (14); the circulation pipe (16) is in an S-shaped structure.

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