CN201816209U - Wood plastic extrusion dehumidification mixed feeding device - Google Patents

Abstract

The utility model relates to a mixing and feeding device for wood-plastic extrusion and dehumidification, which comprises a cylinder body, a cover plate and a stirring and mixing chamber. The cylinder body is columnar, the cover plate is arranged on the upper surface of the cylinder body, There is a motor, and the stirring and mixing chamber is arranged at the bottom of the cylinder body, and a stirring blade is arranged in it, and a stirring shaft is arranged between the stirring blade and the motor, and a spiral trough slide is arranged between the cover plate and the stirring and mixing chamber. road. The upper end of the slideway of the spiral trough is connected with a feeding port, and the lower end of the slideway of the spiral chute is installed on the upper part of the mixing chamber. The utility model simultaneously dehumidifies, mixes and prevents feeding blockage during the feeding process, which not only improves the quality efficiency of feeding, but also avoids the disadvantage of uneven mixing inside the extruder.

Description

Mixing and feeding device for wood-plastic extrusion and dehumidification

technical field

The utility model relates to a feeding device, in particular to a wood-plastic extruding and dehumidifying mixing feeding device.

Background technique

In the extrusion or injection process of plastics and their wood-plastic products, the material needs to be fed into the plasticizing device of the extruder through the feeding hopper during plasticization. Due to the large friction coefficient of wood-plastic raw materials, feeding often occurs during the feeding process. The phenomenon of blocking the mouth of the material, and the material is easy to absorb moisture after being placed for a long time, so that the material is entrained with moisture, so it needs to be dried before processing, otherwise air bubbles will be generated during the processing. In addition, for wood-plastic extrusion, its mixing Uniformity is very important, but due to the small space and high friction coefficient of materials in the plasticizing device, the mixing efficiency in the machine is very low. The above conditions have affected the quality efficiency and cost of wood-plastic processing. During the extrusion and injection molding process of polymer materials and their wood-plastic composite materials, various fillers and other materials must enter the plasticizing barrel through the feeding hopper. The feeding hopper of the traditional plastic or wood-plastic plasticizing device only has the function of holding the material. For powder or small pellets, the feeding port is often blocked, which not only affects the normal feeding, but also easily entrains gas into the barrel. Bring quality hidden dangers to subsequent extrusion processing. In addition, the material is easy to absorb moisture and become damp during the placement process, and the ratio of various materials requires good mixing to play its role. The utility model is proposed aiming at the requirements of dehumidification and mixing, and at the same time solves the problem of material blocking in feeding. The design also solves the mixed problem of expanding the use of waste wood and plastic. At present, wood-plastic composite materials have been gradually recognized by people, but the mixed technical problems in the processing process have become obstacles to the expansion of wood-plastic composite materials.

Contents of the invention

The utility model overcomes the deficiencies of the prior art, and proposes a wood-plastic extruding and dehumidifying mixing feeding device, which realizes simultaneous dehumidification, mixing and preventing feeding blockage during the feeding process, which not only improves the feeding efficiency Quality efficiency, while also avoiding the disadvantages of uneven mixing inside the extruder.

The technical scheme of the utility model is: wood-plastic extruding and dehumidifying mixing and feeding device, including a cylinder body, a cover plate and a stirring and mixing chamber, the cylinder body is columnar, and the cover plate is arranged on the upper surface of the cylinder body. A motor is arranged on the cover plate, and the stirring and mixing chamber is arranged at the bottom of the cylinder body, and a stirring blade is arranged in it, a stirring shaft is arranged between the stirring blade and the motor, and a stirring shaft is arranged between the cover plate and the stirring and mixing chamber. Spiral trough slide; the cover is provided with a temperature controller

The upper end of the slideway of the spiral trough is connected with a feeding port, and the lower end of the slideway of the spiral chute is installed on the upper part of the mixing chamber.

The spiral chute slideway is provided with a chute, and a heating plate is arranged at the bottom of the chute.

A control terminal is arranged between the temperature controller and the heating plate.

The control terminal is connected with the heating plate through a signal line.

The temperature controller is connected to the control terminal through a control line.

The stirring shaft is coaxial with the main shaft of the motor.

The utility model has the following beneficial effects:

The utility model simultaneously dehumidifies, mixes and prevents feeding from clogging during the feeding process, which not only improves the quality and efficiency of feeding, but also avoids the disadvantage of uneven mixing inside the extruder, and dehumidifies and mixes with the feeding hopper. Mixing can greatly reduce the footprint of the plasticizing device, especially for the processing of wood-plastic composites, which can accelerate the process of environmental protection. In order to achieve energy-saving production and high-quality mixed extrusion production, advanced extrusion technology devices are provided. It can provide efficient technical conditions for extrusion production enterprises.

Description of drawings

Further illustrate the utility model below in conjunction with accompanying drawing and specific embodiment.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic cross-sectional structure diagram of the slideway of the spiral trough of the present invention.

Fig. 3 is a schematic diagram of the control structure of the temperature controller of the present invention.

In the figure, 1. Motor; 2. Feeding port; 3. Temperature controller; 4. Spiral trough slide; 5. Cylinder; Board; 10. Feed trough; 11. Heating plate; 12. Signal line; 13. Control terminal; 14. Control line.

Detailed ways

The following will be further described in conjunction with the accompanying drawings, but not to limit the scope of the present utility model.

Referring to Fig. 1 and Fig. 2, in the cylinder body 5 of the feeding hopper of the wood-plastic extruder, two or more spiral chute slides 4 from top to bottom are set, and the bottom of the spiral trough slide 4 A heating plate 11 is provided, and the heating plate is controlled by a temperature controller 3, and the temperature controller 3 can control the heating plates 11 of a plurality of spiral chute slideways 4 at the same time. The material is fed from the feeding port 2, and multiple feeding ports 2 can be set. The material slides down along the spiral trough 10. While sliding down, because the heating plate 11 works under the condition of temperature control, the material on it slides down at the same time. Heated, dehumidified, dried. When the two materials fall from the top to the bottom, they enter the stirring and mixing chamber 7, and the stirring shaft 6 of the stirring and mixing chamber 7 drives the stirring blade 8 to rotate through the motor 1, and the two materials are stirred and mixed in the stirring and mixing chamber 7. , the material falls into the extruder which is arranged outside, while the material is fully mixed in the mixing chamber 7, it can also prevent the material from being blocked at the mouth and be preheated, so that the feeding on the extruder The comprehensive function of the hopper is improved, and it plays multiple functions of dehumidification, preheating and mixing. The temperature of preheating and dehumidification can be controlled by the temperature controller 3, so that different materials can be dehumidified and preheated at different temperatures. A temperature controller 3 is arranged on the cover plate 9 , the temperature controller 3 is connected to the heating plate 11 through a signal line, and the stirring shaft 6 is coaxial with the main shaft of the motor 1 .

The utility model has designed more than two spiral chute slides 4 in the feeding hopper, and different materials can be added to the spiral trough slides 4 in proportion, and when the materials slide down, the materials are heated and dried and preheated at the same time , when it descends to the feeding port of the plasticizing device, the motor 1 drives the rotating shaft to stir the materials. When the materials are dried and heated, they are also effectively mixed. Due to the driving effect of the stirring shaft 6, the materials are also avoided The feed port is clogged. As a result, the comprehensive function of the feeding hopper can be greatly improved, the extrusion production efficiency of wood-plastic products can be improved, the processing quality can be improved, and the length-to-diameter ratio of the extruder can even be reduced. This is a very necessary technology in wood-plastic processing and production. It can provide advanced technical conditions for enterprises to save energy, reduce the space occupied by machines, and make more effective use of wood-plastic materials. This is of great significance to the efficient production of enterprises and the protection of the environment.

Referring to Fig. 3, a control terminal 13 is arranged between the thermostat 3 and the heating plate 11, the control terminal 13 is connected to the heating plate 11 through the signal line 12, and the thermostat 3 is connected to the heating plate 11 through the control line 14 It is connected to the control terminal 13. The temperature controller 3 is provided with a control panel through which the user can set instructions and send instructions on the control panel. The temperature controller 3 sends instructions to the control terminal 13 through the control line 14 , and the control terminal 13 controls the heating plate 11 to perform heating operation through the signal line 12 .

Claims (7)

1. wood is moulded and is extruded the mixing drawing-in device that dries, comprise cylindrical shell, cover plate and mix the chamber, described cylindrical shell is column, cover plate is arranged on the upper surface of cylindrical shell, it is characterized in that: on the cover board be provided with motor, the chamber of mixing is arranged on the cylindrical shell inner bottom part, is provided with stirring vane in it, be provided with a shaft between described stirring vane and the described motor, at cover plate with mix and be provided with spiral hopper slideway between the chamber; Described cover plate is provided with temperature controller.

2. wood according to claim 1 is moulded and extruded the mixing drawing-in device that dries, and it is characterized in that: the upper end of described spiral hopper slideway connects a charge door, and the lower end of spiral hopper slideway is installed in the top that mixes the chamber.

3. wood according to claim 1 is moulded and extruded the mixing drawing-in device that dries, and it is characterized in that: described spiral hopper slideway is provided with hopper, is provided with heating plate in the bottom of hopper.

4. wood according to claim 3 is moulded and is extruded the mixing drawing-in device that dries, and it is characterized in that: be provided with a control terminal between described temperature controller and the heating plate.

5. wood according to claim 4 is moulded and is extruded the mixing drawing-in device that dries, and it is characterized in that: described control terminal links to each other with heating plate by holding wire.

6. wood according to claim 4 is moulded and extruded the mixing drawing-in device that dries, and it is characterized in that: described temperature controller links to each other with described control terminal by control line.

7. mould according to the described wood of above-mentioned arbitrary claim and extrude the mixing drawing-in device that dries, it is characterized in that: described shaft is coaxial with the main shaft of motor.

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