Plastic extruder with leakage-proof function

Abstract

The utility model discloses a plastic extruder with a leakage-proof function, and relates to the technical field of plastic extruders. The feeding assembly is arranged on the upper surface of the mounting base; the discharging assembly is arranged on the outer surface of the feeding assembly; the heating box is arranged on one side of the feeding assembly; the mold pipe is arranged on one side of the heating box; the heating box is arranged on the upper surface of the mounting base, the cooling unit is arranged on the upper surface of the mounting base, the discharging assembly comprises a material box, a driving motor, a feeding pipe, a first gear, a second gear, a connecting rod and stirring blades, the feeding assembly comprises a driving box and a screw pushing pipe, and one side of the heating box communicates with one side of the screw pushing pipe. According to the utility model, the box body, the heat conducting plate, the radiating fins, the copper pipe, the water pump, the coiled pipe and the heat conducting fin plate are matched to assist in cooling the interior of the mold pipe, so that the shaping of plastics is accelerated, and the processing rate of the plastic extruder is increased.

Description

Technical Field

[0001] This utility model relates to the field of plastic extruder technology, specifically to a plastic extruder with a leak-proof function. Background Technology

[0002] Plastics are polymers made from monomers through addition or condensation polymerization. They have moderate resistance to deformation, falling between fibers and rubber. They are composed of synthetic resins and additives such as fillers, plasticizers, stabilizers, lubricants, and colorants. In the plastic production process, plastic extruders are often used to extrude and shape the plastics.

[0003] In the prior art, patent document CN216832147U discloses a plastic extruder, including a barrel, a drive motor, and a screw. A heating cylinder is sleeved on the outer wall of the barrel, and a plurality of equally spaced heating plates are arranged on the inner wall of the heating cylinder. The heating plates are in close contact with the outer wall of the barrel. A mold is provided at one end of the barrel, and a cooling pipe is wound around the outer wall of the mold. A base is provided at the bottom end of the barrel, and a cooling water tank is provided at the top of the base. A water pump is provided on one side of the cooling water tank. An inlet pipe is sleeved on the output end of the water pump. One end of the inlet pipe is connected to the cooling pipe, and an outlet pipe is sleeved on the end of the cooling pipe away from the inlet pipe. One end of the outlet pipe is connected to the cooling water tank.

[0004] To address the problem of inaccurate raw material temperature control within the barrel of current plastic extruders, which leads to inadequate melting and solidification of plastic granules and affects the quality of plastic products, existing technology employs a cooling device to lower the temperature of the discharge die. However, this device relies solely on semiconductor refrigeration to cool the cooling water, and it is prone to clogging during material feeding, further reducing the practicality of the plastic extruder. Utility Model Content

[0005] The purpose of this invention is to provide a plastic extruder with a leak-proof function to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A leak-proof plastic extruder includes a mounting base; a feeding assembly disposed on the upper surface of the mounting base; a discharging assembly disposed on the outer surface of the feeding assembly; a heating box disposed on one side of the feeding assembly; a mold tube disposed on one side of the heating box; and a cooling unit disposed on the upper surface of the mounting base. The discharging assembly includes a material box, a drive motor, a feeding pipe, a gear one, a gear two, a connecting rod, and a stirring blade. The feeding assembly includes a drive box and a screw pusher tube. One side of the heating box is connected to one side of the screw pusher tube, and the other side of the heating box is connected to the connecting end of the mold tube. The cooling unit includes a conveying assembly and a heat dissipation assembly.

[0008] A further improvement of this utility model is that the bottom surface of the drive box is fixedly connected to the upper surface of the mounting base, and one side of the drive box is fixedly connected to one side of the screw push tube.

[0009] By adopting the above technical solution, the combination of heating box, drive box and screw push tube can help heat and transfer the plastic in the feeding component to the mold tube for shaping.

[0010] A further improvement of this utility model is that the bottom surface of the material box is fixedly connected to the upper surface of the screw pushing tube, and the upper surface of the material box is fixedly connected to the bottom surface of the feeding tube.

[0011] A further improvement of this utility model is that: the upper surface of the material box is detachably connected to the bottom surface of the drive motor; the output end of the drive motor is fixedly connected to the upper surface of gear one; the outer surface of gear one meshes with the outer surface of gear two; the inner wall of gear two is fixedly connected to the outer surface of the connecting rod; the upper surface of the connecting rod is rotatably connected to the inner wall of the material box; and the outer surface of the connecting rod is fixedly connected to one side of the stirring blade.

[0012] By employing the above technical solution, the combination of a material bin, a drive motor, a feeding pipe, gear one, gear two, a connecting rod, and a stirring blade can assist in stirring the plastic raw materials fed into the material bin, thereby causing accumulation during the plastic feeding process.

[0013] A further improvement of the present invention is that the conveying assembly includes a housing, the bottom surface of which is fixedly connected to the upper surface of the mounting base, and a heat-conducting plate is detachably connected to the upper surface of the housing. The output end of the heat-conducting plate extends into the interior of the mold tube, and the input end of the heat-conducting plate extends into the interior of the housing.

[0014] By adopting the above technical solution, the combination of the box body and the heat conduction plate can help to pump the cooling water inside the box body to the mold tube.

[0015] A further improvement of the present invention is that the heat dissipation component includes a heat-conducting plate, heat dissipation fins are fixedly connected to the outer surface of the heat-conducting plate, and copper tubes are fixedly connected to the inner wall of the heat dissipation fins.

[0016] The above technical solution, which uses a combination of heat-conducting plates, heat dissipation fins, and copper pipes, can help dissipate heat from the cooling water.

[0017] A further improvement of this utility model is that: one side of the heat-conducting plate extends into the interior of the housing, and the outer surface of the heat-conducting plate is provided with heat-conducting fins.

[0018] By adopting the above technical solution, the use of heat-conducting fins can help transfer the temperature of the cooling water inside the box to the heat-conducting plate through the principle of heat transfer, thereby increasing the contact area between the heat-conducting plate and the cooling water, and thus improving the heat transfer efficiency.

[0019] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0020] 1. This utility model provides a plastic extruder with a leak-proof function. The material box, drive motor, feeding pipe, gear one, gear two, connecting rod and stirring blade are used to assist in stirring the plastic raw material fed into the material box, so that the plastic material accumulates during the feeding process and affects the feeding rate.

[0021] 2. This utility model provides a plastic extruder with a leak-proof function. The combination of a heating box, a drive box and a screw push tube can help heat and transfer the plastic in the feeding assembly to the mold tube for shaping, thereby increasing the practicality of the plastic extruder.

[0022] 3. This utility model provides a plastic extruder with a leak-proof function. The combination of a housing, heat-conducting plate, heat dissipation fins, copper pipe, water pump, serpentine pipe and heat-conducting fins can help cool the inside of the mold tube, thereby accelerating the shaping of plastic and increasing the processing speed of the plastic extruder. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a front structural diagram of the present invention;

[0025] Figure 3 This is a schematic diagram of the feeding assembly structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the cooling unit structure of this utility model;

[0027] Figure 5This is a partial structural diagram of the cooling unit of this utility model.

[0028] In the diagram: 1. Mounting base; 2. Feeding assembly; 21. Material bin; 22. Drive motor; 23. Feeding pipe; 24. Gear 1; 25. Gear 2; 26. Connecting rod; 27. Stirring blade; 3. Feeding assembly; 31. Drive box; 32. Screw pusher pipe; 4. Heating box; 5. Mold tube; 6. Cooling unit; 61. Box body; 62. Heat-conducting plate; 63. Heat dissipation fins; 64. Copper pipe; 65. Water pump; 66. Serpentine tube; 67. Heat-conducting fins. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to embodiments: Example 1

[0030] like Figure 1-5 As shown, this utility model provides a plastic extruder with a leak-proof function, including a mounting base 1; a feeding assembly 3 disposed on the upper surface of the mounting base 1; a discharging assembly 2 disposed on the outer surface of the feeding assembly 3; a heating box 4 disposed on one side of the feeding assembly 3; a mold tube 5 disposed on one side of the heating box 4; and a cooling unit 6 disposed on the upper surface of the mounting base 1. The discharging assembly 2 includes a material box 21, a drive motor 22, a feeding pipe 23, a first gear 24, a second gear 25, a connecting rod 26, and a stirring blade 27. The feeding assembly 3 includes a drive box 31 and a screw pusher pipe 32. One side of the heating box 4 is adjacent to one side of the screw pusher pipe 32. The heating box 4 is connected to the mold tube 5 on the other side. The cooling unit 6 includes a conveying component and a heat dissipation component. The bottom surface of the drive box 31 is fixedly connected to the upper surface of the mounting base 1. One side of the drive box 31 is fixedly connected to one side of the screw push tube 32. During the use of the plastic extruder, plastic raw materials are fed into the material box 21 through the feeding pipe 23. Then, the drive motor 22 is started, and the drive shaft of the drive motor 22 drives the gear 1 24 to rotate, which in turn drives the connecting rod 26 to rotate in conjunction with the gear 25, so that the stirring blade 27 stirs the plastic and prevents blockage during the use of the plastic extruder. Example 2

[0031] like Figure 1-5As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the bottom surface of the material box 21 is fixedly connected to the upper surface of the screw push tube 32, the upper surface of the material box 21 is fixedly connected to the bottom surface of the feeding tube 23, the upper surface of the material box 21 is detachably connected to the bottom surface of the drive motor 22, the output end of the drive motor 22 is fixedly connected to the upper surface of gear 1 24, the outer surface of gear 1 24 meshes with the outer surface of gear 25, the inner wall of gear 25 is fixedly connected to the outer surface of the connecting rod 26, the upper surface of the connecting rod 26 is rotatably connected to the inner wall of the material box 21, and the outer surface of the connecting rod 26 is fixedly connected to one side of the stirring blade 27. When the plastic from the feeding assembly 2 is fed into the screw push tube 32, the drive box 31 drives the spiral blade inside the screw push tube 32 to push the plastic into the heating box 4 for heating, and finally, after being shaped by the mold tube 5, the plastic processing is completed. Example 3

[0032] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the conveying assembly includes a housing 61, the bottom surface of which is fixedly connected to the upper surface of the mounting base 1, and a heat-conducting plate 62 is detachably connected to the upper surface of the housing 61. The output end of the heat-conducting plate 62 extends into the interior of the mold tube 5, and the input end of the heat-conducting plate 62 extends into the interior of the housing 61. The heat dissipation assembly includes a heat-conducting plate 62, and heat dissipation fins 63 are fixedly connected to the outer surface of the heat-conducting plate 62. A copper tube 64 is fixedly connected to the inner wall of the heat dissipation fins 63. One side of the heat-conducting plate 62 extends... Extending into the interior of the housing 61, the outer surface of the heat-conducting plate 62 is provided with heat-conducting fins 67. When it is necessary to cool and shape the plastic, the water pump 65 is started to pump the cooling water inside the housing 61 into the mold tube 5 to assist in cooling the plastic inside the mold tube 5. At the same time, the heat-conducting fins 67 inside the housing 61 use the principle of heat conduction to exchange heat between the cooling water and the heat-conducting plate 62. In addition, the heat-conducting plate 62 conducts the heat of the cooling water inside the housing 61 to the surface of the heat dissipation fins 63 and the copper tube 64, which can further cool the cooling water inside the housing 61.

[0033] The working principle of this leak-proof plastic extruder will be explained in detail below.

[0034] like Figure 1-5As shown, during the operation of the plastic extruder, plastic raw materials are fed into the feed hopper 21 through the feeding pipe 23. Then, the drive motor 22 is started, and its drive shaft drives gear 24 to rotate, which in turn drives the connecting rod 26 to rotate in conjunction with gear 25. This causes the stirring blades 27 to stir the plastic, preventing blockage during extruder operation. When the plastic from the feeding assembly 2 is fed into the screw push pipe 32, the drive box 31 drives the spiral blades inside the screw push pipe 32 to push the plastic into the heating box 4. The plastic is heated and then shaped by the mold tube 5 to complete the plastic processing. When the plastic needs to be cooled and shaped, the water pump 65 is started to pump the cooling water inside the box 61 into the mold tube 5 to help cool the plastic inside the mold tube 5. At the same time, the heat-conducting fins 67 inside the box 61 use the principle of heat conduction to exchange heat between the cooling water and the heat-conducting plate 62. In addition, the heat-conducting plate 62 conducts the heat of the cooling water inside the box 61 to the surface of the heat dissipation fins 63 and the copper tube 64, which can further cool the cooling water inside the box 61.

[0035] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A plastic extruder with leakage-proof function, comprising a mounting base (1); a feeding assembly (3) arranged on the upper surface of the mounting base (1); a discharging assembly (2) arranged on the outer surface of the feeding assembly (3); a heating box (4) arranged on one side of the feeding assembly (3); a die pipe (5) arranged on one side of the heating box (4); and a cooling unit (6) arranged on the upper surface of the mounting base (1), characterized in that: the discharging assembly (2) comprises a material box (21), a driving motor (22), a feeding pipe (23), a gear one (24), a gear two (25), a connecting rod (26) and a stirring blade (27), the feeding assembly (3) comprises a driving box (31) and a screw pushing pipe (32), one side of the heating box (4) is in communication with one side of the screw pushing pipe (32), the other side of the heating box (4) is in communication with the connecting end of the die pipe (5), and the cooling unit (6) comprises a conveying assembly and a heat dissipation assembly.

2. The plastic extruder with leakage-proof function according to claim 1, characterized in that: The bottom surface of the driving box (31) is fixedly connected with the upper surface of the mounting base (1), and one side of the driving box (31) is fixedly connected with one side of the screw pushing pipe (32).

3. The plastic extruder with leakage-proof function according to claim 2, characterized in that: The bottom surface of the material box (21) is fixedly connected with the upper surface of the screw pushing pipe (32), and the upper surface of the material box (21) is fixedly connected with the bottom surface of the feeding pipe (23).

4. The plastic extruder with leakage-proof function according to claim 3, characterized in that: The upper surface of the material box (21) is detachably connected with the bottom surface of the driving motor (22), the output end of the driving motor (22) is fixedly connected with the upper surface of the gear one (24), the outer surface of the gear one (24) is meshingly connected with the outer surface of the gear two (25), the inner wall of the gear two (25) is fixedly connected with the outer surface of the connecting rod (26), the upper surface of the connecting rod (26) is rotatably connected with the inner wall of the material box (21), and the outer surface of the connecting rod (26) is fixedly connected with one side of the stirring blade (27).

5. The plastic extruder with leakage-proof function according to claim 1, characterized in that: The conveying assembly comprises a box body (61), the bottom surface of the box body (61) is fixedly connected with the upper surface of the mounting base (1), and the upper surface of the box body (61) is detachably connected with a heat conduction plate (62), the output end of the heat conduction plate (62) extends into the die pipe (5), and the input end of the heat conduction plate (62) extends into the box body (61).

6. The plastic extruder with leakage-proof function according to claim 5, characterized in that: The heat dissipation assembly comprises the heat conduction plate (62), the outer surface of the heat conduction plate (62) is fixedly connected with a heat dissipation fin (63), and the inner wall of the heat dissipation fin (63) is fixedly connected with a copper pipe (64).

7. The plastic extruder with leakage-proof function according to claim 6, characterized in that: One side of the heat conduction plate (62) extends into the box body (61), and the outer surface of the heat conduction plate (62) is provided with a heat conduction fin plate (67).

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