Efficient heating device for plastic pipe extrusion molding

Abstract

The utility model relates to an efficient heating device for plastic pipe extrusion molding, which comprises a heating pipe and a cooling liquid tank, an auger is arranged in the heating pipe, a mounting rack A is mounted on the outer surface of the heating pipe, a motor is mounted on the mounting rack A, an output shaft of the motor is connected with the auger, and a feeding pipe is connected to the outer surface of the heating pipe. A heating bin is mounted at the top of the feeding pipe, and a feeding hopper is connected to the outer surface of the heating bin; a stirring shaft is arranged in the heating bin, a plurality of heating rods are mounted on the outer surface of the stirring shaft, and a transmission mechanism capable of driving the stirring shaft to rotate is arranged between an output shaft of the motor and the stirring shaft. Plastic materials enter the heating bin through the feeding hopper and are preheated through the heating rod, so that the temperature of the plastic materials is increased, and the plastic materials are softened, and after the plastic materials enter the heating pipe, the fluidity of the plastic materials can be improved, the plastic materials can be conveniently conveyed in the heating pipe, and the conditions that the torque and load of a motor are increased and blockage is caused are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pipe processing, in particular to a high-efficiency heating device used for extrusion molding of plastic pipes. Background Art

[0002] A plastic pipe is a pipe component used to transport liquids, gases or other substances. It is made of plastic material. Plastic pipes are lightweight, corrosion-resistant, easy to install and low-cost, so they are widely used in various application fields. When processing plastic pipes, an extrusion molding device is required. It uses an extrusion process to heat and extrude the plastic material, and send its pressure into a special mold, so that it passes through a series of extrusion orifices to form a continuous tube shape.

[0003] However, the existing extrusion molding device heats the plastic material mainly through the heating tube. The plastic material is heated in the heating tube and is transported forward by the thrust of the screw feeder. Since it takes a certain amount of time to heat the plastic material in the heating tube, when the plastic material just enters the heating tube, the temperature is low and the fluidity is poor, resulting in large torque and load of the motor, which affects the extrusion quality of the product and makes the extrusion molding machine prone to blockage. In addition, after the plastic tube is extruded, the temperature is high, making the tube softer. The tube is often deformed due to slow cooling, which greatly reduces the yield rate of the plastic tube and increases the cost of plastic tube production and processing. Utility Model Content

[0004] The utility model aims to provide a high-efficiency heating device for plastic pipe extrusion molding, which can improve the heating efficiency of plastic materials and the cooling efficiency of the pipe after extrusion molding.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is as follows.

[0006] A high-efficiency heating device for plastic pipe extrusion molding comprises a heating pipe and a coolant tank, wherein an auger is arranged inside the heating pipe, a mounting frame A is installed on the outer surface of the heating pipe, a motor is installed on the mounting frame A, and the output shaft of the motor is connected to the auger, a feed pipe is connected to the outer surface of the heating pipe, a heating bin is installed on the top of the feed pipe, and a hopper is connected to the outer surface of the heating bin; a stirring shaft is arranged inside the heating bin, a plurality of heating rods are installed on the outer surface of the stirring shaft, and a transmission mechanism capable of driving the stirring shaft to rotate is arranged between the output shaft of the motor and the stirring shaft; a cooling pipe is installed at the discharge end of the heating pipe, a water pump is arranged inside the coolant tank, a water inlet pipe and a water outlet pipe are respectively connected to the outer surface of the cooling pipe, and the end of the water inlet pipe is connected to the water pump, and the end of the water outlet pipe is connected to the coolant tank.

[0007] It can be seen that the plastic material enters the heating bin through the feeding hopper and is first preheated by the heating rod to increase its temperature and soften its properties. Therefore, after entering the heating tube, its fluidity can be improved, which is convenient for transportation inside the heating tube, avoiding the increase of motor torque and load and blockage. In addition, since the plastic material is preheated, the heating time inside the heating tube can be reduced, the heating efficiency can be improved, the setting length of the heating tube can be reduced, the space occupied by the equipment can be reduced, and miniaturization can be facilitated. After being extruded, the plastic material enters the cooling tube, and the cooling effect of the coolant can make the plastic tube solidify quickly to avoid bending and deformation.

[0008] Furthermore, the transmission mechanism includes a bevel gear A sleeved on the outer surface of the motor output shaft, a rotating shaft is vertically arranged on the outside of the heating chamber, a bearing is installed on the outer surface of the rotating shaft, and the end of the bearing is connected to the heating chamber, a bevel gear B is installed on one end of the rotating shaft, and the bevel gear B is meshed and connected with the bevel gear A, and a pulley group is arranged for transmission between the other end of the rotating shaft and the end of the stirring shaft.

[0009] When the motor starts, its output shaft drives the bevel gear A to rotate. Through the meshing action of bevel gear A and bevel gear B, the electric rotating shaft can be rotated, and through the transmission action of the pulley group, the purpose of driving the stirring shaft to rotate can be achieved, so that the heating rod can heat the material while stirring it, thereby improving the heating effect. The motor can drive the auger to rotate and drive the stirring shaft to stir, killing two birds with one stone.

[0010] Furthermore, a hollow tube is installed on the outer surface of the feed tube, a striking rod is inserted into the interior of the hollow tube, a shoulder is provided on the outer surface of the striking rod, a spring is sleeved on the outer surface of the striking rod, both ends of the spring are respectively abutted against the shoulder and the inner wall of the hollow tube, a cam is installed on the outer surface of the rotating shaft, and the cam is in contact with the striking rod.

[0011] When the rotating shaft rotates, the cam can be driven to rotate. During the rotation of the cam, the striking rod is continuously squeezed, thereby driving the striking rod to quickly move toward the direction of the feed pipe and strike the outer surface of the feed pipe. Under the reaction force after the strike and the elastic force of the spring, the striking rod can be quickly reset, and with the continuous rotation of the cam, the striking rod can intermittently strike the feed pipe and generate vibration, thereby increasing the material discharge speed inside the feed pipe and avoiding blockage.

[0012] Furthermore, the portion of the water outlet pipe disposed outside the coolant tank is a planar curved structure, a mounting frame B is mounted on the outer surface of the coolant tank, and a cooling fan is mounted on the mounting frame B.

[0013] The plane bending structure and the heat dissipation fan can improve the cooling effect of the coolant, so that the extruded plastic pipe can be cooled and solidified at a relatively low temperature.

[0014] Furthermore, a silicone pad is provided at one end of the striking rod facing the feed pipe.

[0015] The setting of the silicone pad can achieve a buffering and shock-absorbing effect, thereby preventing the hard contact between the striking rod and the feed pipe from causing damage and deformation to the surface of the feed pipe.

[0016] Furthermore, two supporting columns are installed at the bottom of the heating tube, and the coolant tank is installed on the outer surface of one of the supporting columns, and a base is installed at the bottom of the supporting column.

[0017] By setting the supporting columns, the device can be supported and easily fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 for Figure 1 A is an enlarged schematic diagram;

[0021] Figure 4 for Figure 2 A magnified schematic diagram of B.

[0022] In the figure: 100, heating tube; 101, auger; 102, mounting bracket A; 103, motor; 104, feed pipe; 105, heating bin; 106, feeding hopper; 107, stirring shaft; 108, heating rod; 109, cooling tube; 110, coolant tank; 111, water pump; 112, water inlet pipe; 113, water outlet pipe; 200, transmission mechanism; 201, bevel gear A; 202, bearing; 203, rotating shaft; 204, bevel gear B; 205, pulley set; 300, hollow tube; 301, striking rod; 302, shaft shoulder; 303, spring; 304, cam; 400, mounting bracket B; 401, cooling fan; 500, silicone pad; 600, support column; 601, base. DETAILED DESCRIPTION

[0023] The utility model is described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-4As shown, a high-efficiency heating device for plastic pipe extrusion molding includes a heating tube 100 and a coolant tank 110. An auger 101 is arranged inside the heating tube 100. A mounting frame A102 is installed on the outer surface of the heating tube 100. A motor 103 is installed on the mounting frame A102, and the output shaft of the motor 103 is connected to the auger 101. A feed pipe 104 is connected to the outer surface of the heating tube 100. A heating chamber 105 is installed on the top of the feed pipe 104. A feeding hopper 106 is connected to the outer surface of the heating chamber 105. A stirring shaft 107 is provided at the bottom, and a plurality of heating rods 108 are installed on the outer surface of the stirring shaft 107. A transmission mechanism 200 that can drive the stirring shaft 107 to rotate is provided between the output shaft of the motor 103 and the stirring shaft 107; a cooling pipe 109 is installed at the discharge end of the heating tube 100, and a water pump 111 is provided inside the coolant tank 110. The outer surfaces of the cooling pipe 109 are respectively connected with a water inlet pipe 112 and a water outlet pipe 113, and the end of the water inlet pipe 112 is connected to the water pump 111, and the end of the water outlet pipe 113 is connected to the coolant tank 110.

[0025] When in use, a worker first puts the plastic material from the hopper 106 into the heating chamber 105, then starts the heating rod 108 to heat the material, so that its temperature rises and its properties become soft, and then starts the motor 103. Through the setting of the transmission mechanism 200, the auger 101 and the stirring shaft 107 can be driven to rotate at the same time. After being heated by the heating rod 108, the material falls into the heating pipe 100 from the feed pipe 104 and is transported forward by the auger 101. During the transportation process, it is heated again until The tube is extruded from its end to form a tube, and after the tube is extruded, it enters the cooling pipe 109. The water pump 111 can be started to pump the coolant in the coolant tank 110 into the water inlet pipe 112 and into the cooling pipe 109. After the coolant cools and solidifies the tube in the cooling pipe 109, it is discharged from the water outlet pipe 113 and flows back into the coolant tank 110, thereby achieving the purpose of recycling. The tube is discharged after being solidified in the cooling pipe 109, which can avoid bending and deformation.

[0026] Specifically, the transmission mechanism 200 includes a bevel gear A201 sleeved on the outer surface of the output shaft of the motor 103, a rotating shaft 203 is vertically arranged on the outer side of the heating chamber 105, a bearing 202 is installed on the outer surface of the rotating shaft 203, and the end of the bearing 202 is connected to the heating chamber 105, a bevel gear B204 is installed on one end of the rotating shaft 203, and the bevel gear B204 is meshed and connected with the bevel gear A201, and a belt is arranged between the other end of the rotating shaft 203 and the end of the stirring shaft 107. Wheel group 205, when the motor 103 is started, its output shaft drives the bevel gear A201 to rotate, and through the meshing action of the bevel gear A201 and the bevel gear B204, the electric rotating shaft 203 can be rotated, and through the transmission action of the pulley group 205, the purpose of driving the stirring shaft 107 to rotate can be achieved, so that the heating rod 108 heats the material while stirring it, thereby improving the heating effect. The motor 103 can not only drive the auger 101 to rotate, but also drive the stirring shaft 107 to stir, thus killing two birds with one stone.

[0027] Specifically, a hollow tube 300 is installed on the outer surface of the feed tube 104, a striking rod 301 is inserted into the interior of the hollow tube 300, a shoulder 302 is provided on the outer surface of the striking rod 301, a spring 303 is sleeved on the outer surface of the striking rod 301, and the two ends of the spring 303 are respectively abutted against the shoulder 302 and the inner wall of the hollow tube 300, a cam 304 is installed on the outer surface of the rotating shaft 203, and the cam 304 is in contact with the striking rod 301. When the rotating shaft 203 rotates, the cam 304 can be driven to rotate, and the cam During the rotation of the wheel 304, the striking rod 301 is continuously squeezed, thereby driving the striking rod 301 to move quickly toward the direction of the feed pipe 104 and strike the outer surface of the feed pipe 104. Under the reaction force after the strike and the elastic force of the spring 303, the striking rod 301 can be quickly reset, and with the continuous rotation of the cam 304, the striking rod 301 can intermittently strike the feed pipe 104 and generate vibration, thereby increasing the material discharge speed inside the feed pipe 104 and avoiding blockage.

[0028] Specifically, the portion of the water outlet pipe 113 disposed on the outside of the coolant tank 110 is a planar curved structure, and a mounting frame B400 is installed on the outer surface of the coolant tank 110, and a cooling fan 401 is installed on the mounting frame B400. The planar curved structure and the setting of the cooling fan 401 can improve the cooling effect of the coolant, so that the extruded plastic pipe can be cooled and solidified at a relatively low temperature.

[0029] Specifically, a silicone pad 500 is provided at one end of the striking rod 301 facing the feed pipe 104. The setting of the silicone pad 500 can provide a buffering and shock-absorbing effect, thereby preventing the striking rod 301 from making hard contact with the feed pipe 104 and causing damage and deformation to the surface of the feed pipe 104.

[0030] Specifically, two support columns 600 are installed at the bottom of the heating tube 100, and the coolant tank 110 is installed on the outer surface of one of the support columns 600. A base 601 is installed at the bottom of the support column 600. Through the setting of the support column 600, the device can be supported and easily fixed.

[0031] The above is a detailed description of the utility model in combination with specific embodiments, and it cannot be determined that the specific implementation methods of the present invention are limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, making several equivalent substitutions or obvious modifications without departing from the concept of the present invention, and having the same performance or use, should be regarded as belonging to the patent protection scope of the utility model determined by the submitted claims.

Claims

1. A high-efficiency heating device for plastic pipe extrusion molding, comprising a heating pipe (100) and a cooling liquid tank (110), Features: An auger (101) is arranged inside the heating tube (100), a mounting frame A (102) is installed on the outer surface of the heating tube (100), a motor (103) is installed on the mounting frame A (102), and the output shaft of the motor (103) is connected to the auger (101), the outer surface of the heating tube (100) is connected to a feed pipe (104), a heating bin (105) is installed on the top of the feed pipe (104), and the outer surface of the heating bin (105) is connected to a feeding hopper (106); A stirring shaft (107) is arranged inside the heating chamber (105), a plurality of heating rods (108) are installed on the outer surface of the stirring shaft (107), and a transmission mechanism (200) capable of driving the stirring shaft (107) to rotate is arranged between the output shaft of the motor (103) and the stirring shaft (107); A cooling pipe (109) is installed at the discharge end of the heating pipe (100), a water pump (111) is arranged inside the cooling liquid tank (110), and the outer surface of the cooling pipe (109) is respectively connected to a water inlet pipe (112) and a water outlet pipe (113), and the end of the water inlet pipe (112) is connected to the water pump (111), and the end of the water outlet pipe (113) is connected to the cooling liquid tank (110).

2. A highly efficient heating device for plastic pipe extrusion molding according to claim 1, Features: The transmission mechanism (200) comprises a bevel gear A (201) sleeved on the outer surface of the output shaft of the motor (103); a rotating shaft (203) is vertically arranged on the outer side of the heating chamber (105); a bearing (202) is installed on the outer surface of the rotating shaft (203), and the end of the bearing (202) is connected to the heating chamber (105); a bevel gear B (204) is installed on one end of the rotating shaft (203), and the bevel gear B (204) is meshed and connected with the bevel gear A (201); a pulley group (205) is arranged between the other end of the rotating shaft (203) and the end of the stirring shaft (107) for transmission.

3. A highly efficient heating device for plastic pipe extrusion molding according to claim 2, Features: A hollow tube (300) is installed on the outer surface of the feed tube (104), a striking rod (301) is inserted into the interior of the hollow tube (300), a shoulder (302) is provided on the outer surface of the striking rod (301), a spring (303) is sleeved on the outer surface of the striking rod (301), two ends of the spring (303) are respectively in contact with the shoulder (302) and the inner wall of the hollow tube (300), a cam (304) is installed on the outer surface of the rotating shaft (203), and the cam (304) is in contact with the striking rod (301).

4. A highly efficient heating device for plastic pipe extrusion molding according to claim 3, Features: The portion of the water outlet pipe (113) disposed outside the coolant tank (110) is a planar curved structure, a mounting frame B (400) is mounted on the outer surface of the coolant tank (110), and a cooling fan (401) is mounted on the mounting frame B (400).

5. A highly efficient heating device for plastic pipe extrusion molding according to claim 4, Features: A silicone pad (500) is provided at one end of the striking rod (301) facing the feed pipe (104).

6. The high-efficiency heating device for plastic pipe extrusion molding according to claim 1, Features: Two support columns (600) are installed at the bottom of the heating tube (100), and the coolant tank (110) is installed on the outer surface of one of the support columns (600), and a base (601) is installed at the bottom of the support column (600).

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