Co-extrusion high-efficiency extruder

Abstract

The utility model discloses a co-extrusion high-efficiency extruder which comprises a frame, an extruder body is installed in the frame, sealing gaskets are arranged at the edges of a sealing cover and heat preservation grooves, the multiple sets of heat preservation grooves are communicated with one another through communicating pipes, the side wall of the frame is fixedly connected with a device box, multiple sets of electric heating pipes are installed in the device box, and the electric heating pipes are arranged in the device box. A piston is movably connected into the device box, two sets of connecting pipes are installed on the outer wall of the device box, the two sets of connecting pipes communicate with the interiors of the two sets of heat preservation grooves correspondingly, and a moving mechanism for driving the piston to move is installed in the device box. Circulating water is heated through the electric heating pipe, high-temperature water is evenly pumped into the heat preservation groove through reciprocating motion of the piston, closed-loop heat circulation is formed, compared with the technical means in the background technology, the heat energy utilization rate of the device is remarkably improved, energy waste is effectively reduced, meanwhile, it is guaranteed that the temperature of the outer wall of the extruder body is evenly distributed, and the service life of the extruder is prolonged. The stability of the extrusion process is improved.

Description

Technical Field

[0001] This utility model relates to the field of extrusion machine technology, and in particular to a co-extrusion high-efficiency extrusion machine. Background Technology

[0002] An extruder, also known as an extruder, is a machine mainly used for producing power cords, power cables, coaxial cables, communication cables, transmission cables, BV-class civilian wires, electronic wires, computer wires, building wires, data communication cables, radio frequency wires, HDMI data cables, etc.

[0003] Chinese utility model patent CN220075500U discloses an electric wire extrusion machine. In use, the rotation of the threaded rod drives the U-shaped plate to slide up and down, thereby wrapping the bottom of the extruder and preventing heat loss. However, there are certain drawbacks in actual use. For example, after closing, there are gaps in the contact surface with the machine body, and heat will dissipate through air convection, affecting the heat preservation effect. Therefore, it is necessary to propose a co-extrusion high-efficiency extruder to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-efficiency co-extrusion extruder.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-efficiency co-extrusion extruder includes a frame, an extruder body installed within the frame, a feed hopper on the end face of the extruder body and connected to the interior of the frame, multiple sets of insulation grooves on the outer wall of the extruder body, each set of insulation grooves having a sealing cover at its opening, a sealing gasket at the edge of the insulation groove, the multiple sets of insulation grooves being interconnected via connecting pipes, a device box fixedly connected to the side wall of the frame, multiple sets of electric heating tubes installed within the device box, a piston movably connected within the device box, two sets of connecting pipes installed on the outer wall of the device box, the two sets of connecting pipes respectively connecting to two sets of insulation grooves, and a movable mechanism for driving the piston to move within the device box.

[0007] Preferably, the active mechanism includes a reciprocating lead screw rotatably connected inside the device housing, a lead screw sleeve threadedly connected to the threaded section of the reciprocating lead screw, and the lead screw sleeve being fixedly connected to the piston via a connecting rod.

[0008] Preferably, two sets of limiting rods are fixedly connected to the inner wall of the device box, the lead screw sleeve is slidably connected to the outer wall of the two sets of limiting rods, and a limiting block is fixedly connected to the end of the reciprocating lead screw.

[0009] Preferably, the radius of the limiting block is larger than the radius of the reciprocating lead screw, and a one-way valve is installed in both sets of connecting pipes.

[0010] Preferably, the frame sidewall is fixedly connected to a side plate, and the frame outer wall is rotatably connected to two sets of transmission wheels with different radii. The two sets of transmission wheels are coaxially fixedly connected to the reciprocating screw and the internal screw of the extruder body, respectively, and the two sets of transmission wheels are connected to each other by a transmission belt.

[0011] Preferably, a servo motor is fixedly connected to the outer wall of the side plate, and the end of the output shaft of the servo motor is coaxially fixedly connected to its adjacent transmission wheel.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model utilizes an electric heating tube to heat circulating water and pumps the high-temperature water evenly into the heat preservation tank through the reciprocating motion of a piston, forming a closed-loop thermal cycle. Compared with the technical means in the background art, this device significantly improves the thermal energy utilization rate, effectively reduces energy waste, and ensures uniform temperature distribution on the outer wall of the extruder body, thereby improving the stability of the extrusion process.

[0014] 2. This utility model achieves synchronous operation of the extruder screw and the thermal circulation system through the transmission wheel and transmission belt. The operator can dynamically control the thermal circulation intensity by adjusting the speed of the servo motor to adapt to the process requirements of different materials. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a high-efficiency co-extrusion extruder proposed in this utility model;

[0016] Figure 2 for Figure 1 Structural diagram.

[0017] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of the central device box.

[0018] In the diagram: 1. Frame; 2. Extruder body; 3. Feed hopper; 4. Heating element; 5. Connecting pipe; 6. Side plate; 7. Servo motor; 8. Device box; 9. Insulation tank; 10. Transmission wheel; 11. Transmission belt; 12. Connecting pipe; 13. Reciprocating screw; 14. Limiting rod; 15. Screw sleeve; 16. Piston; 17. Sealing cover. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] Reference Figure 1-3A high-efficiency co-extrusion extruder includes a frame 1, an extruder body 2 installed inside the frame 1, a feed hopper 3 provided on the end face of the extruder body 2 and connected to the interior of the frame 1, multiple sets of heat preservation grooves 9 opened on the outer wall of the extruder body 2, a sealing cover 17 installed at the opening of each set of heat preservation grooves 9, a sealing gasket provided at the edge of the sealing cover 17 and the edge of the heat preservation groove 9, the multiple sets of heat preservation grooves 9 are connected to each other through a connecting pipe 5, a device box 8 is fixedly connected to the side wall of the frame 1, multiple sets of electric heating tubes 4 are installed inside the device box 8, a piston 16 is movably connected inside the device box 8, two sets of connecting pipes 12 are installed on the outer wall of the device box 8, the two sets of connecting pipes 12 are respectively connected to the two sets of heat preservation grooves 9, and a movable mechanism for driving the piston 16 is installed inside the device box 8.

[0021] Furthermore, after the electric heating tube 4 heats the water in the device box 8, the reciprocating motion of the piston 16 pumps the water into the insulation tank 9 through the connecting pipe 12, and then forms a closed loop circulation through the connecting pipe 5, thereby preventing the heat loss of the extruder body 2.

[0022] The moving mechanism includes a reciprocating screw 13 rotatably connected in the device box 8, and a screw sleeve 15 threadedly connected to the threaded section of the reciprocating screw 13. The screw sleeve 15 is fixedly connected to the piston 16 through a connecting rod.

[0023] Furthermore, the reciprocating screw 13 can effectively drive the piston 16 to reciprocate, realizing the circulation of water from the insulation tank 9 to the device box 8.

[0024] Two sets of limiting rods 14 are fixedly connected to the inner wall of the device box 8. The screw sleeve 15 is slidably connected to the outer wall of the two sets of limiting rods 14. A limiting block is fixedly connected to the end of the reciprocating screw 13. The radius of the limiting block is larger than the radius of the reciprocating screw 13. A one-way valve is installed in both sets of connecting pipes 12.

[0025] Furthermore, the limiting rod 14 and the limiting block can jointly constrain the movement range of the lead screw sleeve 15.

[0026] A side plate 6 is fixedly connected to the side wall of the frame 1. Two sets of transmission wheels 10 are rotatably connected to the outer wall of the frame 1, and their radii are different. The two sets of transmission wheels 10 are coaxially fixedly connected to the reciprocating screw 13 and the inner screw of the extruder body 2, respectively. The two sets of transmission wheels 10 are connected to each other through a transmission belt 11. A servo motor 7 is fixedly connected to the outer wall of the side plate 6. The end of the output shaft of the servo motor 7 is coaxially fixedly connected to its adjacent transmission wheel 10.

[0027] In this invention, when the device is in use: the servo motor 7 drives the screw inside the extruder body 2 to rotate via the transmission wheel 10 and the transmission belt 11, while the reciprocating screw 13 rotates synchronously in conjunction. The heating element 4 inside the device box 8 begins to heat the internal circulating water, and the water temperature quickly rises to the set range.

[0028] When the extruder body 2 begins extrusion, the output shaft of the servo motor 7 drives the reciprocating screw 13 to rotate at a constant speed via the transmission wheel 10. The threaded section of the reciprocating screw 13 pushes the screw sleeve 15 to slide to one side along the limit rod 14, causing the piston 16 to move towards the top of the device box 8. When the piston 16 moves upward, a negative pressure is formed at the bottom of the device box 8, drawing cold water from the insulation tank 9 into the device box 8 through a one-way valve to replenish it. When the piston 16 moves downward, the high-temperature water heated by the heating element 4 is pumped into the two sets of insulation tanks 9 through the connecting pipe 12, and evenly distributed to all insulation tanks 9 through the connecting pipe 5, forming a closed-loop dynamic thermal cycle. During the cycle, multiple sets of insulation tanks 9 are connected in series through the connecting pipe 5, and the water flow direction is precisely guided by the one-way valve to ensure uniform temperature distribution on the outer wall of the extruder body 2.

[0029] After the extrusion operation is completed, the servo motor 7 stops running, the piston 16 returns to its initial position, and the heating element 4 enters the heat preservation mode.

[0030] In summary, this device solves the problem of heat loss caused by gaps in traditional extruders through dynamic water circulation, thereby improving the heat preservation effect and process stability.

[0031] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A high-efficiency co-extrusion extruder, comprising a frame (1), characterized in that, An extruder body (2) is installed inside the frame (1). A feed hopper (3) is provided on the end face of the extruder body (2), and the feed hopper (3) is connected to the inside of the frame (1). Multiple sets of heat preservation grooves (9) are opened on the outer wall of the extruder body (2). A sealing cover (17) is installed at the opening of each set of heat preservation grooves (9). A sealing gasket is provided at the edge of the sealing cover (17) and the edge of the heat preservation groove (9). The multiple sets of heat preservation grooves (9) are connected to each other through a connecting pipe (5). A device box (8) is fixedly connected to the side wall of the frame (1). Multiple sets of electric heating tubes (4) are installed inside the device box (8). A piston (16) is movably connected inside the device box (8). Two sets of connecting pipes (12) are installed on the outer wall of the device box (8). The two sets of connecting pipes (12) are respectively connected to the two sets of heat preservation grooves (9). A moving mechanism for driving the piston (16) is installed inside the device box (8).

2. The co-extrusion high-efficiency extruder according to claim 1, characterized in that, The active mechanism includes a reciprocating screw (13) rotatably connected in the device box (8), and a screw sleeve (15) is threadedly connected to the threaded section of the reciprocating screw (13). The screw sleeve (15) is fixedly connected to the piston (16) through a connecting rod.

3. The co-extrusion high-efficiency extruder according to claim 2, characterized in that, Two sets of limiting rods (14) are fixedly connected to the inner wall of the device box (8), the lead screw sleeve (15) is slidably connected to the outer wall of the two sets of limiting rods (14), and a limiting block is fixedly connected to the end of the reciprocating lead screw (13).

4. The co-extrusion high-efficiency extruder according to claim 3, characterized in that, The radius of the limiting block is larger than the radius of the reciprocating screw (13), and a one-way valve is installed in both sets of the connecting pipes (12).

5. A high-efficiency co-extrusion extruder according to claim 4, characterized in that, The frame (1) has a side plate (6) fixedly connected to its side wall. The outer wall of the frame (1) is rotatably connected to two sets of transmission wheels (10), and their radii are different. The two sets of transmission wheels (10) are coaxially fixedly connected to the reciprocating screw (13) and the inner screw of the extruder body (2), respectively. The two sets of transmission wheels (10) are connected to each other through a transmission belt (11).

6. The co-extrusion high-efficiency extruder according to claim 5, characterized in that, A servo motor (7) is fixedly connected to the outer wall of the side plate (6), and the end of the output shaft of the servo motor (7) is coaxially fixedly connected to its adjacent transmission wheel (10).

Images