Conveying and heating mechanism for air conditioner plastic part injection molding

Abstract

The conveying and heating mechanism comprises an injection molding machine body, a fixing support is installed on one side of the injection molding machine body, a transverse heat preservation cylinder is installed on the fixing support, a conveying pipeline is arranged in the transverse heat preservation cylinder, one end of the conveying pipeline is communicated with the injection molding machine body, and the other end of the conveying pipeline is communicated with the injection molding machine body. The conveying pipeline is communicated with a feeding hopper, a hollow rotating rod is rotatably connected to the interior of the conveying pipeline, a spiral conveying sheet is mounted on the hollow rotating rod, one end, far away from the injection molding machine main body, of the hollow rotating rod penetrates and extends out of the transverse thermal insulation cylinder, one end of the hollow rotating rod is connected with a rotating joint, and an air heater is mounted on the injection molding machine main body. A hot air pipe is communicated between the hot air blower and the rotating joint; and a heating coil is wound on the outer wall of the conveying pipeline. The utility model has the beneficial effects that the heating efficiency is improved, the heat distribution is uniform, the raw materials can be uniformly heated and melted, the cooling during flowing is avoided, the product quality is improved, and the thermal insulation performance is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding equipment, in particular to a conveying and heating mechanism for injection molding of air-conditioning plastic parts. Background Art

[0002] Injection molding machine is also called injection molding machine or injection machine. It 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] The utility model with application number CN201820556903.1 discloses an injection molding machine with a bubble discharge mechanism. By setting the injection molding piston of the injection molding machine to be porous, the screw rotates to continuously transport the heated and melted plastic, and enters the collecting barrel through the small holes on the piston. When passing through the small holes, the bubbles wrapped in the plastic are broken and discharged from the exhaust pipe, thereby achieving the purpose of bubble discharge.

[0004] The above-mentioned device heats and melts the raw material through the heating coil on the screw conveyor and the heating wire in the piston. The heating speed through the heating coil is slow. When the raw material flows to the end of the conveying cylinder, the raw material is heated by the heating wire in the piston. The contact area between the piston and the raw material is small, and the raw material far away from the piston cannot be heated. The heating is uneven and the thermal insulation effect is poor. The raw material is easy to cool at the end of the conveying cylinder, and the cooled material is easy to enter the mold, which reduces the product production quality.

[0005] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content

[0006] The utility model aims to solve the above problems and designs a conveying and heating mechanism for injection molding of air-conditioning plastic parts.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A conveying and heating mechanism for injection molding of air-conditioning plastic parts, comprising an injection molding machine body, a fixed bracket installed on one side of the injection molding machine body, a transverse insulation cylinder installed on the fixed bracket, a conveying pipe arranged in the transverse insulation cylinder, one end of the conveying pipe being connected to the injection molding machine body, a feed hopper being connected to the conveying pipe, a hollow rotating rod being rotatably connected in the conveying pipe, a spiral conveying sheet being installed on the hollow rotating rod, one end of the hollow rotating rod away from the injection molding machine body extending through the transverse insulation cylinder, one end of the hollow rotating rod being connected to a rotating joint, a hot air blower being installed on the injection molding machine body, a hot air pipe being connected between the hot air blower and the rotating joint, and a heating coil being wound around the outer wall of the conveying pipe.

[0009] Furthermore, a fixed baffle is installed at one end of the hollow rotating rod close to the rotating joint, a transverse partition plate is installed inside the hollow rotating rod, a fixed opening is provided at one end of the transverse partition plate away from the fixed baffle, an air inlet is provided on the fixed baffle, and the air inlet is located below the transverse partition plate. An air outlet is provided on the hollow rotating rod, and the air outlet is located between the transverse insulation tube and the conveying pipe.

[0010] Furthermore, a driven pulley is installed on the hollow rotating rod, and the driven pulley is located between the transverse insulation cylinder and the rotating joint. A motor bracket is installed on one side of the fixed bracket, and a driving motor is installed on the motor bracket. A driving pulley is installed on the output end of the driving motor, and the driving pulley is connected to the driven pulley through a transmission belt.

[0011] Furthermore, a pressure relief valve is provided on one side of the top of the transverse insulation cylinder.

[0012] Furthermore, the motor bracket is located above the hot air blower, and the motor bracket is made of heat-insulating material.

[0013] Furthermore, a fixed bearing is provided at one end of the transverse heat-insulating cylinder away from the injection molding machine, and the hollow rotating rod is fixedly connected to the inner ring of the fixed bearing.

[0014] Compared with the prior art, this technical solution has the following beneficial effects:

[0015] The conveying pipe is heated by the heating coil, and the hot air enters the hollow rotating rod. The inside of the conveying pipe can be heated through the hollow rotating rod, which improves the heating efficiency and evenly distributes the heat. The raw materials can be heated and melted evenly to avoid cooling during flow and to avoid the materials from not being completely melted when entering the mold, thereby improving the product quality.

[0016] The hot air can circulate in the hollow rotating rod. When the hot air flows to the air outlet, the hot air enters the horizontal insulation tube, and the conveying pipeline is insulated by the horizontal insulation tube. At the same time, the hot air can also heat the conveying pipeline, thereby improving the heating efficiency and enhancing the insulation performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a schematic structural diagram of a conveying and heating mechanism for injection molding of air-conditioning plastic parts.

[0018] Figure 2 It is an enlarged cross-sectional view of the transverse insulation tube.

[0019] Figure 3 This is an enlarged cross-sectional view of the hollow rotating rod.

[0020] Figure 4 for Figure 2 A partial enlarged view of point B in the middle.

[0021] Figure 5 for Figure 1 A partial enlarged view of point A in the middle.

[0022] In the figure: 1. Injection molding machine body; 2. Fixed bracket; 3. Horizontal insulation cylinder; 4. Conveying pipeline; 5. Feed hopper; 6. Hollow rotating rod; 7. Screw conveyor plate; 8. Rotating joint; 9. Hot air blower; 10. Hot air duct; 11. Heating coil; 12. Fixed baffle; 13. Horizontal partition plate; 14. Fixed opening; 15. Air inlet; 16. Air outlet; 17. Driven pulley; 18. Motor bracket; 19. Driving motor; 20. Driving pulley; 21. Transmission belt; 22. Pressure relief valve; 23. Fixed bearing. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0025] The utility model provides Figure 1-5The shown conveying and heating mechanism for injection molding of air-conditioning plastic parts comprises an injection molding machine body 1, a fixed bracket 2 is installed on one side of the injection molding machine body 1, a transverse heat preservation cylinder 3 is installed on the fixed bracket 2, a conveying pipe 4 is arranged in the transverse heat preservation cylinder 3, one end of the conveying pipe 4 is connected with the injection molding machine body 1, a feed hopper 5 is connected to the conveying pipe 4, a hollow rotating rod 6 is rotatably connected in the conveying pipe 4, a spiral conveying sheet 7 is installed on the hollow rotating rod 6, one end of the hollow rotating rod 6 away from the injection molding machine body 1 extends through the transverse heat preservation cylinder 3, one end of the hollow rotating rod 6 is connected with a rotating joint 8, a hot air blower 9 is installed on the injection molding machine body 1, a hot air pipe 10 is connected between the hot air blower 9 and the rotating joint 8, and a heating coil 11 is wound around the outer wall of the conveying pipe 4.

[0026] The raw materials are poured into the feed hopper 5, and the raw materials enter the conveying pipe 4 through the feed hopper 5. The heating coil 11 starts to work, and the heating coil 11 heats the conveying pipe 4. At the same time, the hot air blower 9 starts to work, and the hot air generated by the hot air blower 9 enters the hollow rotating rod 6 through the hot air pipe 10 and the rotating joint 8. The inside of the conveying pipe 4 can be heated through the hollow rotating rod 6, which improves the heating efficiency and evenly distributes the heat, so that the raw materials can be evenly heated and melted to avoid cooling during the flow. The spiral conveying sheet 7 is driven by the hollow rotating rod 6 to rotate to convey the raw materials, and the thermal insulation is improved by the horizontal insulation cylinder 3.

[0027] Refer to the instruction manual Figure 2 , Instruction Manual Figure 3 And the instruction manual Figure 4 A fixed baffle 12 is installed at one end of the hollow rotating rod 6 close to the rotating joint 8, a transverse partition plate 13 is installed in the hollow rotating rod 6, and a fixed opening 14 is provided at one end of the transverse partition plate 13 away from the fixed baffle plate 12, an air inlet 15 is provided on the fixed baffle plate 12, and the air inlet 15 is located below the transverse partition plate 13, and an air outlet 16 is provided on the hollow rotating rod 6, and the air outlet 16 is located between the transverse insulation cylinder 3 and the conveying pipeline 4.

[0028] After the hot air enters the hollow rotating rod 6, the fixed baffle 12 will block it, and the hot air enters the hollow rotating rod 6 through the air inlet 15 on the fixed baffle 12, and the hot air flows along the bottom of the horizontal partition plate 13 in the hollow rotating rod 6, and the hot air enters the top of the horizontal partition plate 13 through the fixed opening 14. The hot air can flow in the hollow rotating rod 6. When the hot air flows to the air outlet 16, the hot air enters the horizontal insulation tube 3, and the conveying pipe 4 is insulated by the horizontal insulation tube 3. At the same time, the hot air can also heat the conveying pipe 4, thereby improving the heating efficiency and enhancing the insulation performance.

[0029] Refer to the instruction manual Figure 4 And the instruction manual Figure 5A driven pulley 17 is installed on the hollow rotating rod 6, and the driven pulley 17 is located between the horizontal insulation cylinder 3 and the rotating joint 8. A motor bracket 18 is installed on one side of the fixed bracket 2, and a driving motor 19 is installed on the motor bracket 18. A driving pulley 20 is installed on the output end of the driving motor 19, and the driving pulley 20 is connected to the driven pulley 17 through a transmission belt 21.

[0030] The driving motor 19 starts to work, and the output end of the driving motor 19 drives the active pulley 20 to rotate, and the active pulley 20 drives the driven pulley 17 to rotate through the transmission belt 21, and the driven pulley 17 drives the hollow rotating rod 6 and the spiral conveying sheet 7 to rotate to transport the material.

[0031] Refer to the instruction manual Figure 1 And the instruction manual Figure 2 A pressure relief valve 22 is provided on one side of the top of the horizontal insulation tube 3.

[0032] When the internal pressure value of the transverse heat-insulating cylinder 3 exceeds the set value, the pressure relief valve 22 opens, and the internal pressure of the transverse heat-insulating cylinder 3 is released through the pressure relief valve 22 to avoid equipment damage caused by excessive pressure.

[0033] Refer to the instruction manual Figure 4 A fixed bearing 23 is provided at one end of the transverse heat preservation cylinder 3 away from the injection molding machine, and the hollow rotating rod 6 is fixedly connected to the inner ring of the fixed bearing 23.

[0034] The hollow rotating rod 6 rotates along the fixed bearing 23 during rotation.

[0035] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A conveying and heating mechanism for injection molding of air-conditioning plastic parts, comprising an injection molding machine body (1), a fixing bracket (2) being installed on one side of the injection molding machine body (1), characterized in that: A transverse heat-insulating cylinder (3) is installed on the fixed bracket (2), a conveying pipe (4) is arranged inside the transverse heat-insulating cylinder (3), one end of the conveying pipe (4) is connected to the injection molding machine body (1), the conveying pipe (4) is connected to a feed hopper (5), a hollow rotating rod (6) is rotatably connected inside the conveying pipe (4), a spiral conveying sheet (7) is installed on the hollow rotating rod (6), one end of the hollow rotating rod (6) away from the injection molding machine body (1) extends through the transverse heat-insulating cylinder (3), one end of the hollow rotating rod (6) is connected to a rotating joint (8), a hot air blower (9) is installed on the injection molding machine body (1), a hot air pipe (10) is connected between the hot air blower (9) and the rotating joint (8), and a heating coil (11) is wound around the outer wall of the conveying pipe (4).

2. A conveying and heating mechanism for injection molding of air-conditioning plastic parts according to claim 1, characterized in that: A fixed baffle (12) is installed at one end of the hollow rotating rod (6) close to the rotating joint (8), a transverse partition plate (13) is installed inside the hollow rotating rod (6), and a fixed opening (14) is provided at one end of the transverse partition plate (13) away from the fixed baffle plate (12). An air inlet (15) is provided on the fixed baffle plate (12), and the air inlet (15) is located below the transverse partition plate (13). An air outlet (16) is provided on the hollow rotating rod (6), and the air outlet (16) is located between the transverse heat preservation cylinder (3) and the conveying pipe (4).

3. The conveying and heating mechanism for injection molding of air-conditioning plastic parts according to claim 1, characterized in that: A driven pulley (17) is mounted on the hollow rotating rod (6), and the driven pulley (17) is located between the transverse heat-insulating cylinder (3) and the rotating joint (8). A motor bracket (18) is mounted on one side of the fixed bracket (2), and a driving motor (19) is mounted on the motor bracket (18). A driving pulley (20) is mounted on the output end of the driving motor (19), and the driving pulley (20) is connected to the driven pulley (17) via a transmission belt (21).

4. The conveying and heating mechanism for injection molding of air-conditioning plastic parts according to claim 1, characterized in that: A pressure relief valve (22) is provided on one side of the top of the transverse heat-insulating cylinder (3).

5. The conveying and heating mechanism for injection molding of air-conditioning plastic parts according to claim 3, characterized in that: The motor bracket (18) is located above the hot air blower (9), and the motor bracket (18) is made of a heat-insulating material.

6. The conveying and heating mechanism for injection molding of air-conditioning plastic parts according to claim 1, characterized in that: A fixed bearing (23) is provided at one end of the transverse heat-insulating cylinder (3) away from the injection molding machine, and the hollow rotating rod (6) is fixedly connected to the inner ring of the fixed bearing (23).

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