Extrusion die head of plastic extruder
By designing a multifunctional extrusion die head, using the position and material adjustment of the plug core core, the cumbersome problem of extrusion die head replacement in the prior art is solved, the production efficiency is improved and high-speed and efficient continuous production is achieved.
Patent Information
- Application Number
- CN202421390715.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-18
AI Technical Summary
The extrusion die replacement of existing plastic extruders is complicated, resulting in low production efficiency and difficult to achieve high-speed and efficient continuous production.
An extrusion die head including an extrusion head, a plug guide, a plug guide core and a fixed seat is designed. By adjusting the position or material of the plug guide core, the functions of wire, pipe and coated extrusion are realized, reducing the preliminary preparation time.
It realizes rapid adjustment of production type without replacing the extrusion die, reduces preliminary preparation time and improves the production efficiency of plastic extruders.
Smart Images
Figure CN222662607U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of plastic extruders, and in particular to an extrusion die head of a plastic extruder. Background Art
[0002] Among plastic molding equipment, plastic extruder is an important part of various plastic extrusion molding production lines. It is mainly used to extrude soft and hard polyvinyl chloride, polyethylene and other thermoplastic plastics. It can be used with corresponding auxiliary machines (including extrusion die) to process a variety of plastic products, such as pipes, rods, wires, cable insulation layers and hollow products. The function of the extrusion die is to convert the rotating plastic melt into parallel linear motion, evenly and smoothly introduce it into the extrusion die, and give the plastic the necessary molding pressure.
[0003] The existing plastic extruder extrusion die and its locking structure are usually connected by bolts or screws between the extrusion die and the plastic extruder barrel. When processing wires, pipes and cables, different types of extrusion dies need to be replaced, which makes the workload of replacing the extrusion die large and time-consuming, and reduces the production efficiency of the equipment; it is difficult to achieve high-speed, efficient and long-term continuous production.
[0004] In view of this, the inventor proposes an extrusion die head for a plastic extruder. Utility Model Content
[0005] The purpose of the present invention is to provide an extrusion die head for a plastic extruder, which can realize the functions of wire and pipe extrusion and coating extrusion, reduce the pre-preparation time, and improve the production efficiency of the plastic extruder.
[0006] In order to achieve the above-mentioned purpose, the present disclosure provides an extrusion die head of a plastic extruder, which includes an extrusion head, a blocking guide head, a blocking guide core and a fixed seat connected to the discharge end of the plastic extruder, wherein a feed channel and a molding channel that are interconnected are opened in the fixed seat, the extrusion head is a hollow structure, and is arranged at the bottom of the molding channel and connected to the fixed seat; the blocking guide head is a hollow structure, and is arranged at the top of the molding channel and connected to the fixed seat; a molding cavity is formed between the extrusion head and the blocking guide head, the blocking guide core is arranged in the blocking guide head, and the diameter of the blocking guide core is smaller than the diameter of the outlet of the extrusion head.
[0007] Optionally, the plugging and guiding head comprises a fixed section, a plugging section and a guiding section which are coaxially connected in sequence, the plugging section is adapted to the forming channel, the guiding section extends into the extrusion head, and the fixed section is connected to the fixing seat.
[0008] Optionally, the extrusion head is arranged in a funnel shape.
[0009] Optionally, the plugging guide core is made of copper, aluminum, copper alloy or aluminum alloy.
[0010] Optionally, a plurality of notches are formed on the edge of the fixing section, screw holes matching the notches are formed on the fixing seat, and bolts pass through the notches and are connected to the screw holes.
[0011] Optionally, an air inlet channel for cooling the plastic melt is also provided in the fixing seat, and the air inlet channel is communicated with the feed channel.
[0012] Through the above technical solution, the existing plastic extruder can achieve the functions of wire, pipe extrusion and coating extrusion by adjusting the position or material of the plugging guide core without changing the extrusion die head, thereby reducing the preliminary preparation time, improving the production efficiency of the plastic extruder, and having strong adaptability.
[0013] 1. Wire extrusion: When this function is used, the plugging guide core is a solid rod, and the plugging guide core is installed in the plugging guide head to close the plugging guide head. At this time, the extrusion die head functions as a wire extrusion die;
[0014] 2. Pipe extrusion: When this function is used, the plugging guide core is a hollow tube. When installed, the end face of the plugging guide core is flush with the end face of the extruder head. At this time, the mold functions as a pipe extrusion mold;
[0015] 3. Coating extrusion: When this function is used, the plugging core is a conductive wire, and the conductive wire material to be coated is continuously fed into the extrusion die through the plugging core to achieve the function of coating the outside of the conductive wire.
[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:
[0018] Figure 1 A schematic side cross-sectional view of an extrusion die head in one embodiment of the present disclosure;
[0019] Figure 2 A cross-sectional schematic diagram of a fixing seat in one embodiment of the present disclosure;
[0020] Figure 3 It is a schematic diagram of the overall structure of an extrusion die head in one embodiment of the present disclosure;
[0021] Figure 4 A schematic diagram of the connection of an extrusion head in one embodiment of the present disclosure;
[0022] Figure 5 It is a horizontal cross-sectional schematic diagram of an extrusion die head in one embodiment of the present disclosure.
[0023] Description of Reference Numerals
[0024] 100, fixing seat; 101, feeding channel; 102, forming channel; 103, air inlet channel; 110, extrusion head; 120, plugging guide head; 121, fixing section; 122, plugging section; 123, guiding section; 130, plugging guide core; 140, bolt. DETAILED DESCRIPTION
[0025] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.
[0026] In the present disclosure, unless otherwise specified, directional words such as “up, down, left, right” are generally defined according to the direction of the drawings, and “inside, outside” refer to the inside and outside of the relevant components.
[0027] In the description of the present disclosure, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.
[0028] The present disclosure provides an extrusion die head for a plastic extruder, please refer to Figure 1-Figure 5 It includes an extrusion head 110, a blocking guide head 120, a blocking guide core 130 and a fixed base 100 connected to the discharge end of the plastic extruder. The fixed base 100 is provided with a feeding channel 101 and a molding channel 102 that are interconnected. The extrusion head 110 is a hollow structure, and is arranged at the bottom of the molding channel 102 and connected to the fixed base 100; the blocking guide head 120 is a hollow structure, and is arranged at the top of the molding channel 102 and connected to the fixed base 100; a molding cavity is formed between the extrusion head 110 and the blocking guide head 120, and the blocking guide core 130 is arranged in the blocking guide head 120, and the diameter of the blocking guide core 130 is smaller than the diameter of the outlet of the extrusion head 110.
[0029] In the above technical solution, the extrusion head 110, the blocking guide head 120 and the fixing seat 100 are made of alloy steel material. The fixing seat 100 can be connected to the discharge end of the plastic extruder by bolts 140 or screws, so that the plastic melt flows into the molding cavity of the molding channel 102 through the feed channel 101. In actual use, when wire extrusion is required, the blocking guide core 130 is a solid rod, and the blocking guide core 130 is installed in the hollow blocking guide head 120 to close the blocking guide head 120 to prevent the plastic melt from flowing out from the top of the hollow blocking guide head 120. The plastic melt flows out through the lower extrusion head 110 for molding; when pipe extrusion is required, the blocking guide core 130 is a hollow tube, and the blocking guide core 130 is installed in the hollow blocking guide head 120, and the end face of the blocking guide core 130 is flush with the end face of the extrusion head 110. At this time, since the diameter of the blocking guide core 130 is smaller than the diameter of the outlet of the extrusion head 110, this This ensures that the plugging head 120 can be closed and the plastic melt can flow out from the gap between the extruder head 110 and the plugging core 130, thereby finally forming a tube. When wire coating extrusion is required, the plugging core 130 is a conductive wire, and the conductive wire material to be coated is continuously fed into the extrusion die through the plugging core 130. At this time, since the diameter of the plugging core 130 is smaller than the diameter of the outlet of the extruder head 110, this ensures that the plugging head 120 can be closed and the plastic melt can flow out from the gap between the extruder head 110 and the plugging core 130, thereby finally forming a cable.
[0030] Optionally, in some other embodiments of the present disclosure, please refer to Figure 1 The fixing seat 100 is also provided with an air inlet channel 103, which is interconnected with the feed channel 101. When the pipe is extruded, an air pipe can be threadedly connected to the top of the air inlet channel 103 to cool the plastic melt.
[0031] Optionally, in one embodiment of the present disclosure, please refer to Figure 1 The plugging head 120 includes a fixed section 121, a blocking section 122 and a guiding section 123 which are coaxially connected in sequence. The blocking section 122 is adapted to the molding channel 102 and is used to seal the molding channel 102 to prevent the plastic melt from flowing out from the top of the molding channel 102; the guiding section 123 extends into the extrusion head 110 and is used to introduce the plastic melt into the extrusion head 110; the fixed section 121 is connected to the fixing seat 100, so that the plugging head 120 is connected to the fixing seat 100 as a whole, thereby ensuring the sealing effect and preventing leakage.
[0032] Optionally, in one embodiment of the present disclosure, please refer to Figure 1 and Figure 2 The extrusion head 110 is arranged in a funnel shape, the guide section 123 extends to the end with a larger diameter, and the end with a smaller diameter is a discharge port.
[0033] Optionally, in some other embodiments of the present disclosure, the outer periphery of the sealing segment 122 is provided with an external thread, and the interior of the molding channel 102 corresponding to the sealing segment 122 is provided with a matching internal thread, so that the sealing segment 122 and the fixing seat 100 are in a sealed connection state, which can improve the sealing effect.
[0034] Optionally, in one embodiment of the present disclosure, in order to ensure the quality of the product after pipe extrusion or coating extrusion, it is necessary to make the extrusion head 110 with a hollow structure and the plugging head 120 with a hollow structure be on the same axis, so a plurality of notches can be opened on the edge of the fixed section 121, and a screw hole matching the notch is provided on the fixing seat 100, and the bolt 140 passes through the notch and is connected to the screw hole. By adjusting the different locking forces of the bolt 140, the relative position of the plugging head 120 and the discharge port of the extrusion head 110 can be achieved, so as to achieve the adjustment of the uniformity of the extruded wall thickness, thereby improving the convenience of adjustment. Similarly, the extrusion head 110 can also be connected to the fixing seat 100 using the above structure, so that the replacement of the extrusion head 110 can be convenient for adapting to the production of products of different sizes and specifications. The core position adjustment screw,
[0035] Optionally, in an embodiment of the present disclosure, when wire coating extrusion is required, the conductive wire used in the plugging conductor 130 may be made of copper wire, aluminum wire, copper alloy wire or aluminum alloy wire.
[0036] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.
[0037] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.
[0038] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.
Claims
1. An extrusion die head for a plastic extruder, characterized in that: It includes an extrusion head, a blocking guide head, a blocking guide core and a fixed seat connected to the discharge end of a plastic extruder, wherein a feed channel and a molding channel which are interconnected are provided in the fixed seat, the extrusion head is a hollow structure, and is arranged at the bottom of the molding channel and connected to the fixed seat; the blocking guide head is a hollow structure, and is arranged at the top of the molding channel and connected to the fixed seat; a molding cavity is formed between the extrusion head and the blocking guide head, the blocking guide core is arranged in the blocking guide head, and the diameter of the blocking guide core is smaller than the diameter of the outlet of the extrusion head.
2. The extrusion die head of a plastic extruder according to claim 1, characterized in that: The plugging and guiding head comprises a fixed section, a plugging section and a guiding section which are coaxially connected in sequence, the plugging section is adapted to the forming channel, the guiding section extends into the extrusion head, and the fixed section is connected to the fixing seat.
3. The extrusion die head of a plastic extruder according to claim 2, characterized in that: The extrusion head is arranged in a funnel shape.
4. An extrusion die head for a plastic extruder according to any one of claims 1 to 3, characterized in that: The plugging and guiding core is made of copper, aluminum, copper alloy or aluminum alloy.
5. The extrusion die head of a plastic extruder according to claim 2, characterized in that: The edge of the fixing section is provided with a plurality of notches, the fixing seat is provided with screw holes matched with the notches, and the bolts pass through the notches and are connected with the screw holes.
6. The extrusion die head of a plastic extruder according to claim 1, characterized in that: An air inlet channel for cooling the plastic melt is also provided in the fixing seat, and the air inlet channel is communicated with the feed channel.