A plastic extrusion wire drawing device capable of quick color and material changing

Abstract

The utility model belongs to the technical field of plastic extrusion, concretely relates to a plastic extrusion wire drawing device of quick colour and material changing, including plastic wire drawing extruder and the feeding mechanism of installing on plastic wire drawing extruder, and the feeding mechanism includes the feed tank, the feed tank fixedly connected on the upside of plastic wire drawing extruder, the inside of feed tank is provided with two space adjustable storage cavities, the horizontal section size of storage cavity is adjustable, and heating drying processing mechanism is installed in the inside of storage cavity, the downside of feed tank is fixedly connected with two discharge pipes, two feed pipes are linked with the lower end of two storage cavities respectively, and the valve is installed on the discharge pipe, and the lower end of two discharge pipes is linked with a communicating pipe, and the communicating pipe is linked with plastic wire drawing extruder. The utility model can realize the quick switching and heating pretreatment of plastic wire drawing extruder raw materials, and can dynamically adjust the storage cavity volume according to the raw material quantity in the inside of storage cavity, reduces the waste of heat energy.

Description

Technical Field

[0001] This utility model belongs to the field of plastic extrusion technology, specifically relating to a plastic extrusion and drawing device that can quickly change colors and materials. Background Technology

[0002] In the field of plastic extrusion and fiber production, plastic fiber extruders are the core equipment for melting, extruding, and drawing raw materials into shapes. They are widely used in the manufacturing process of products such as plastic woven bags, plastic nets, and plastic ropes. With the increasing market demand for diversified and personalized plastic products, it has become commonplace to frequently change plastic raw materials of different colors and materials during the production process (i.e., "color and material changes").

[0003] Meanwhile, in order to improve the melting uniformity of extrusion and reduce defects such as broken filaments and uneven thickness in the finished product, the raw materials are pre-treated by heating. The requirements for energy utilization efficiency during the pre-treatment process are also increasing.

[0004] However, while some existing plastic extrusion and drawing devices improve material changing efficiency by increasing the feeding channel and the raw material receiving cavity (or hopper), the volume of the raw material receiving cavity (or hopper) is mostly fixed and cannot be dynamically adjusted according to the actual amount of raw material used. When the amount of raw material used is small, a large number of "empty areas" will form in the receiving cavity, while the heating mechanism still needs to heat the entire receiving cavity. This results in the heat energy in the empty areas not effectively contacting the raw material and being wasted, leading to low energy utilization and significant heat energy waste. Utility Model Content

[0005] The purpose of this invention is to provide a plastic extrusion and drawing device that can quickly change colors and materials, enabling rapid switching of raw materials and heating pretreatment in plastic extrusion machines. It can also dynamically adjust the volume of the receiving cavity according to the amount of raw material inside, reducing the waste of heat energy.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A plastic extrusion and drawing device with quick color and material change capability includes a plastic drawing extruder and a feeding mechanism installed on the plastic drawing extruder;

[0008] The feeding mechanism includes a feeding box, which is fixedly connected to the upper side of the plastic drawing extruder. The feeding box has two adjustable storage cavities inside, and the horizontal cross-sectional dimensions of the storage cavities are adjustable. A heating and drying treatment mechanism is installed inside the storage cavities.

[0009] Two discharge pipes are fixedly connected to the lower side of the feeding box. The two discharge pipes are respectively connected to the lower ends of the two receiving cavities. Valves are installed on the discharge pipes. A connecting pipe is connected to the lower ends of the two discharge pipes. The connecting pipe is connected to the plastic drawing extruder. Two feeding pipes are fixedly connected to the upper end of the feeding box. The two feeding pipes are respectively connected to the upper ends of the two receiving cavities. Valves are installed on both feeding pipes.

[0010] Furthermore, electric telescopic rods are fixedly connected to both sides of the feeding box, and the output ends of the two electric telescopic rods are fixedly connected to side plates located inside the feeding box. The storage cavity is the space between the side plates and the side wall of the feeding box.

[0011] Furthermore, both sides of the lower side of the feed box are fixedly connected to a collection hopper, and an opening is provided on the lower side of the feed box and at the position opposite to the two collection hoppers. The lower end of the collection hopper is fixedly connected to the discharge pipe.

[0012] Furthermore, a base plate is fixedly connected to the lower side of the side plate, and the side plate and the base plate form an L-shaped structure. A feeding slope is provided on the upper side of the base plate.

[0013] Furthermore, the heating and drying mechanism includes multiple electric heating rods installed inside the receiving cavity. The multiple electric heating rods inside the same receiving cavity are arranged in at least one row. The upper and lower ends of each electric heating rod are fixedly connected to a mounting base. Tension springs are fixedly connected between two adjacent mounting bases in the same row, between the mounting base and the inner wall of the feeding box, and between adjacent mounting bases and the side plate.

[0014] The technical effects achieved by this utility model are as follows:

[0015] This utility model discloses a plastic extrusion and drawing device with rapid color and material change capability. By setting two receiving cavities connected to the plastic drawing extruder, it can realize the rapid switching of raw materials in the plastic drawing extruder and complete the rapid color and material change of raw materials. By setting a heating and drying treatment mechanism, the plastic raw materials inside the receiving cavities can be pre-treated by heating. Moreover, the volume of the receiving cavities can be dynamically adjusted according to the amount of raw materials inside the receiving cavities, so that the volume of the receiving cavities is adapted to the amount of plastic raw materials inside the receiving cavities. This can effectively reduce the empty areas inside the receiving cavities where no raw materials are present, thereby reducing the heat energy that is not in effective contact with the raw materials in the empty areas and reducing the waste of heat energy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a front view of the structure of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the feeding mechanism of this utility model;

[0019] Figure 4 This is a cross-sectional front view of the feeding mechanism of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Plastic filament extruder; 2. Feed box; 3. Feed pipe; 4. Discharge pipe; 5. Valve; 6. Collection hopper; 7. Electric telescopic rod; 8. Side plate; 9. Base plate; 10. Discharge ramp; 11. Tension spring; 12. Mounting base; 13. Electric heating rod. Detailed Implementation

[0022] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0023] like Figures 1-4 As shown, a plastic extrusion and drawing device capable of rapid color and material change includes a plastic drawing extruder 1 and a feeding mechanism installed on the plastic drawing extruder 1.

[0024] The plastic filament extruder 1 is a mature existing technology. This technical solution does not involve any improvement to the plastic filament extruder 1, so the plastic filament extruder 1 will not be described in detail.

[0025] The feeding mechanism includes a feeding box 2, which is fixedly connected to the upper side of the plastic drawing extruder 1. The feeding box 2 has two adjustable storage cavities inside, and the volume of the storage cavities can be dynamically adjusted according to the quantity of the two plastic raw materials.

[0026] The horizontal cross-sectional dimensions of the storage cavity are adjustable to change its volume, so that the volume of the storage cavity matches the amount of plastic material inside the storage cavity.

[0027] Two discharge pipes 4 are fixedly connected to the lower side of the feed box 2. The two discharge pipes 4 are respectively connected to the lower end of the two receiving cavities. A valve 5 is installed on the discharge pipe 4. A connecting pipe is connected to the lower end of the two discharge pipes 4. The connecting pipe is connected to the plastic drawing extruder 1. Two feed pipes 3 are fixedly connected to the upper end of the feed box 2. The two feed pipes 3 are respectively connected to the upper end of the two receiving cavities. A valve 5 is installed on each of the two feed pipes 3.

[0028] At this time, the two raw materials are added into the two receiving cavities through the two feed pipes 3 respectively. According to the needs, the valve 5 on the discharge pipe 4 below the corresponding receiving cavity is opened, and the two raw materials in the two receiving cavities can be added into the plastic drawing extruder 1, realizing the rapid switching of raw materials in the plastic drawing extruder 1 and completing the color and material change of raw materials.

[0029] like Figure 1 and Figures 3-4 As shown, a heating and drying mechanism is installed inside the storage cavity. The plastic raw materials inside the storage cavity can be pre-treated by heating and drying through the heating and drying mechanism. Since the volume of the storage cavity and the amount of plastic raw materials inside the storage cavity are matched, the empty areas inside the storage cavity without raw materials can be effectively reduced, thereby reducing the heat energy in the empty areas that are not in effective contact with the raw materials and reducing the waste of heat energy.

[0030] like Figure 1 and Figures 3-4 As shown, electric telescopic rods 7 are fixedly connected to both sides of the feeding box 2. The output ends of the two electric telescopic rods 7 are fixedly connected to side plates 8 located inside the feeding box 2. The side plates 8 can move horizontally inside the feeding box 2, and a sealing ring can be fixedly connected to the outer side of the side plates 8. The sealing ring can be used to fill the gap between the side plates 8 and the inner wall of the feeding box 2. The storage cavity is the space between the side plates 8 and the side wall of the feeding box 2. The horizontal cross-sectional dimensions of the storage cavity can be adjusted by starting the electric telescopic rods 7 to drive the side plates 8 to move horizontally.

[0031] like Figure 1 and Figures 3-4 As shown, two collecting hoppers 6 are fixedly connected to the lower sides of the feeding box 2. Openings are provided on the lower side of the feeding box 2 and opposite to the two collecting hoppers 6, so that the two collecting hoppers 6 are connected to the two receiving cavities respectively. The lower end of the collecting hopper 6 is fixedly connected to the discharge pipe 4. At this time, the raw material inside the receiving cavity can enter the collecting hopper 6 under the action of gravity, and then be guided to the discharge pipe 4 along the inclined inner wall of the collecting hopper 6, so that the raw material inside the collecting hopper 6 can be discharged relatively easily. Moreover, by moving the side plate 8, the plastic raw material located in the plane area of ​​the lower inner wall of the feeding box 2 (that is, the area of ​​the inner wall of the feeding box 2 located between the two collecting hoppers 6) can be pushed into the collecting hopper 6.

[0032] The bottom plate 9 can be fixedly connected to the lower side of the side plate 8. The side plate 8 and the bottom plate 9 form an L-shaped structure. The upper side of the bottom plate 9 is provided with a feeding ramp 10. When the side plate 8 is located on the upper side of the inner wall plane area of ​​the lower side of the feed box 2, the feeding ramp 10 can be used to guide the plastic raw material on the upper side of the bottom plate 9.

[0033] The heating and drying mechanism includes multiple electric heating rods 13 installed inside the storage cavity, which can release heat energy relatively evenly to the upper part of the storage cavity.

[0034] In this arrangement, multiple electric heating rods 13 inside the same storage cavity are arranged in at least one row. The upper and lower ends of the electric heating rods 13 are fixedly connected to mounting bases 12. Tension springs 11 are fixedly connected between two adjacent mounting bases 12 in the same row, between the mounting base 12 and the inner wall of the feed box 2, and between adjacent mounting bases 12 and the side plate 8. When the side plate 8 moves, the mounting bases 12 can be moved by the tension springs 11, which in turn moves the electric heating rods 13, thereby automatically adjusting the position of the electric heating rods 13 so that the electric heating rods 13 are evenly distributed in the upper part of the storage cavity.

[0035] The mounting base 12 is preferably made of ceramic to reduce the heat energy transferred from the electric heating rod 13 to the tension spring 11.

[0036] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A plastic extrusion and drawing device capable of rapid color and material change, characterized in that: It includes a plastic filament extruder (1) and a feeding mechanism mounted on the plastic filament extruder (1); The feeding mechanism includes a feeding box (2), which is fixedly connected to the upper side of the plastic drawing extruder (1). The feeding box (2) has two adjustable storage cavities inside. The horizontal cross-sectional dimensions of the storage cavities are adjustable. A heating and drying treatment mechanism is installed inside the storage cavities. Two discharge pipes (4) are fixedly connected to the lower side of the feed box (2). The two discharge pipes (4) are respectively connected to the lower ends of the two receiving cavities. A valve (5) is installed on the discharge pipe (4). A connecting pipe is connected to the lower ends of the two discharge pipes (4). The connecting pipe is connected to the plastic drawing extruder (1). Two feed pipes (3) are fixedly connected to the upper end of the feed box (2). The two feed pipes (3) are respectively connected to the upper ends of the two receiving cavities. A valve (5) is installed on each of the two feed pipes (3).

2. The plastic extrusion and drawing device with rapid color and material change capability according to claim 1, characterized in that: Electric telescopic rods (7) are fixedly connected to both sides of the feed box (2). The output ends of the two electric telescopic rods (7) are fixedly connected to side plates (8) located inside the feed box (2). The storage cavity is the space between the side plates (8) and the side wall of the feed box (2).

3. The plastic extrusion and drawing device with rapid color and material change capability according to claim 2, characterized in that: The feed box (2) has two fixedly connected collection hoppers (6) on both sides of its lower side. The feed box (2) and the two collection hoppers (6) have openings at their opposite positions. The lower end of the collection hopper (6) is fixedly connected to the discharge pipe (4).

4. The plastic extrusion and drawing device with rapid color and material change capability according to claim 3, characterized in that: The side plate (8) is fixedly connected to the bottom plate (9), and the side plate (8) and the bottom plate (9) form an L-shaped structure. The bottom plate (9) is provided with a feeding slope (10) on its upper side.

5. A plastic extrusion and drawing device with rapid color and material change capability according to claim 2, characterized in that: The heating and drying process includes multiple electric heating rods (13) installed inside the storage cavity.

6. A plastic extrusion and drawing device with rapid color and material change capability according to claim 5, characterized in that: Multiple electric heating rods (13) inside the same storage cavity are arranged in at least one row. The upper and lower ends of each electric heating rod (13) are fixedly connected to mounting bases (12). Tension springs (11) are fixedly connected between two adjacent mounting bases (12) in the same row, between the mounting base (12) and the inner wall of the feed box (2), and between adjacent mounting bases (12) and the side plate (8).

7. A plastic extrusion and drawing device with rapid color and material change capability according to claim 6, characterized in that: The mounting base (12) is made of ceramic.

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