An extruder

Abstract

The application discloses an extruder, which comprises an extrusion die, a feeding assembly, a wire diameter detection device and a drying assembly, wherein the extrusion die comprises a die base and an extrusion forming assembly; the die base is provided with a glue inlet hole and a glue outlet area; the glue outlet area penetrates through the die base; the extrusion forming assembly is installed in the glue outlet area; the extrusion forming assembly comprises a wire inlet hole die, an inner die core and an outer die core; the feeding assembly is connected with the extrusion die and is used for conveying liquid silicone to the extrusion die; the wire diameter detection device comprises a wire diameter detection assembly and a heat dissipation base; the drying assembly is used for drying the wire penetrating through the heat dissipation base; the wire diameter detection assembly is arranged on the heat dissipation base; the extrusion formed wire penetrates through the heat dissipation base, so that the wire diameter detection assembly is prevented from being affected by high temperature, and the wire diameter detection accuracy is ensured. The application can be widely applied to the technical field of extrusion forming equipment.

Description

Technical Field

[0001] This invention relates to the field of extrusion molding equipment technology, and in particular to an extruder. Background Technology

[0002] The coating layer on the surface of wires is generally obtained by extruding liquid silicone onto the surface of the wire core. The wire core passes through the extrusion die, and the liquid silicone in the die is extruded and coats the surface of the wire core. To ensure rapid molding of the liquid silicone on the wire surface, a curing process is required. Currently, common curing processes include air drying and oven drying. However, air drying may cause the liquid silicone on the wire surface to flow, affecting the uniformity of the coating thickness. Therefore, oven drying is a more commonly used curing method, as the high-temperature environment created by oven drying can quickly cure the silicone.

[0003] Currently, most extruders are equipped with a wire diameter detector at the outlet to monitor the wire diameter in real time. The extruder's host computer can adjust the equipment's operating parameters in real time based on the data from the wire diameter detector to ensure that the wire diameter meets production requirements. After the wire diameter is tested, it is dried and cured. To ensure a uniform coating, the wire is conveyed vertically. Therefore, the drying component, which creates a high-temperature environment, is located below the wire diameter detector to facilitate timely curing of the silicone. However, in this case, the high-temperature environment can affect the operation of the wire diameter detector, potentially leading to inaccurate test data or even overheating and damage to the instrument.

[0004] Different wires have different requirements for coating thickness. Therefore, different specifications of extrusion dies need to be changed during the production process. In order to reduce costs, some manufacturers design extrusion dies with adjustable silicone extrusion volume, which have a variety of extrusion volume specifications to choose from, but still cannot meet the diverse requirements of wire coating thickness. Summary of the Invention

[0005] To solve at least one of the above-mentioned technical problems, the present invention provides an extruder, and the technical solution adopted is as follows.

[0006] The extruder provided by this invention includes an extrusion die, a feeding assembly, a wire diameter detection device, and a drying assembly. The extrusion die includes a die base and an extrusion molding assembly. The die base is provided with a glue inlet and a glue outlet area, the glue outlet area penetrating the die base. The extrusion molding assembly is installed in the glue outlet area. The feeding assembly is connected to the extrusion die and is used to feed liquid silicone into the extrusion die. The wire diameter detection device includes a wire diameter detection component and a heat dissipation base. The wire diameter detection component is disposed on the heat dissipation base, and the extruded wire passes through the heat dissipation base. The drying assembly is used to dry the wire passing through the heat dissipation base. The extrusion molding assembly includes a wire inlet die, an inner die core, and an outer die core.

[0007] In some embodiments of the present invention, the extrusion die includes an adjustment structure, the outer die core is connected to the adjustment structure, and the adjustment structure is movably connected to the die base to adjust the distance between the outer die core and the inner die core.

[0008] In some embodiments of the present invention, the adjusting structure is connected to the mold base by a helical drive, and the adjusting structure is rotated to adjust the distance between the outer mold core and the inner mold core.

[0009] In some embodiments of the present invention, the adjusting structure is provided with a movable locking structure, which is connected to the outer peripheral sidewall of the outer mold core to fix the outer mold core to the adjusting structure.

[0010] In some embodiments of the present invention, multiple locking structures are provided, and the locking structures are threadedly connected to the side wall of the adjusting structure, and the locking structures penetrate the side wall of the adjusting structure.

[0011] In some embodiments of the present invention, the extrusion molding assembly includes a mold flow channel disposed in the dispensing area, the inner mold core is connected to the mold flow channel, and the outer peripheral sidewall of the mold flow channel is provided with a diffusion flow path.

[0012] In some embodiments of the present invention, the heat dissipation base includes a layered partition and a heat dissipation fan, the layered partition being connected to the heat dissipation base and the heat dissipation fan being connected to the side wall of the heat dissipation base.

[0013] In some embodiments of the present invention, the layered partition divides the inner cavity of the heat dissipation base into heat dissipation channels, and the heat dissipation fans are respectively arranged on opposite sides of the heat dissipation channels. One side of the heat dissipation fan sends cold air into the heat dissipation channel, and the other side of the heat dissipation fan sends hot air out of the heat dissipation channel.

[0014] In some embodiments of the present invention, the layered partition is filled with thermal insulation material.

[0015] In some embodiments of the present invention, the wire diameter detection component is movable on the heat dissipation base to avoid the wire.

[0016] The embodiments of the present invention have at least the following beneficial effects: the feeding assembly delivers liquid silicone to the extrusion die, the wire core passes through the extrusion die, the liquid silicone in the extrusion die flows to the area between the inner and outer die cores and coats the surface of the wire core, forming a coating layer for the wire. A wire diameter detection device at the extruder exit monitors the wire diameter in real time. A drying assembly dries and cures the liquid silicone on the wire surface. To prevent the wire detection assembly from being affected by high temperatures, it is mounted on a heat dissipation base to ensure accurate wire diameter detection. This invention can be widely applied in the field of extrusion molding equipment technology. Attached Figure Description

[0017] The aspects and advantages described and / or added to the embodiments of the present invention will become apparent and readily understood in conjunction with the following drawings. It should be noted that the embodiments illustrated in the following drawings are exemplary and are only used to explain the invention, and should not be construed as limiting the invention.

[0018] Figure 1 This is a structural diagram of an extruder.

[0019] Figure 2 This is a structural diagram of an extrusion die.

[0020] Figure 3 This is a cross-sectional view of the extrusion die.

[0021] Figure 4 This is a structural diagram of the mold flow channel.

[0022] Figure 5 This is a structural diagram of the feeding assembly.

[0023] Figure 6 This is a cross-sectional view of the feeding assembly.

[0024] Figure 7 This is a structural diagram of the first cooling water circulation component.

[0025] Figure 8 This is a cross-sectional view of the first cooling water circulation assembly.

[0026] Figure 9 This is a structural diagram of a wire diameter testing device.

[0027] Figure 10 This is a schematic diagram showing the relative positions of the wire diameter detection device and the drying assembly.

[0028] Figure label:

[0029] 1000 Extrusion die; 1100 Die base; 1101 Inlet port; 1201 Wire inlet die; 1202 Inner die core; 1203 Outer die core; 1300 Adjustment structure; 1400 Die flow channel; 1401 Diffusion flow path; 1501 First connecting structure; 1502 Second connecting structure; 1601 Inlet pressure detection port; 1602 Extrusion pressure detection port;

[0030] 2000, Feeding assembly; 2101, Extrusion screw; 2102, Screw barrel; 2103, Feed driver; 2104, Main shaft; 2200, Main mounting base; 2300, Filter plate; 2400, First cooling water circulation assembly; 2401, Rotary joint; 2402, Inner cooling water pipe; 2403, Outer cooling water pipe; 2404, Second bracket; 2405, First inlet; 2406, First outlet;

[0031] 3000, Wire diameter testing device; 3100, Heat dissipation base; 3101, Layered partition; 3102, Wire passage area; 3201, Wire diameter measuring instrument; 3202, Linear guide structure;

[0032] 4000, Drying component. Detailed Implementation

[0033] The following is combined Figures 1 to 10 Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0034] In the description of this invention, it should be understood that the terms "center," "middle," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Features defined with "first" and "second" are used to distinguish feature names and do not have special meanings. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] This invention relates to an extruder, which includes a feeding assembly 2000, an extrusion die 1000, a wire diameter detection device 3000, and a drying assembly 4000. The feeding assembly 2000 is connected to the extrusion die 1000. It is understood that the feeding assembly 2000 is used to feed liquid silicone to the extrusion die 1000, which coats the surface of the wire core with the liquid silicone to form a wire. The extruded wire passes through the wire diameter detection device 3000, which detects the wire diameter in real time so that operators can determine whether the wire size is acceptable. The drying assembly 4000 is used to dry the wire that has passed through the wire diameter detection device 3000.

[0037] Referring to the accompanying drawings, the extrusion die 1000 includes a die base 1100, a feeding assembly 2000 connected to the die base 1100, and a glue inlet 1101 through which liquid silicone enters the extrusion die 1000. Further, the extrusion die 1000 includes an extrusion molding assembly connected to the die base 1100, and the die base 1100 has a glue outlet area extending through the die base 1100. The extrusion molding assembly is installed in the glue outlet area. It can be understood that the wire core passes through the extrusion molding assembly, and the liquid silicone, after being processed by the extrusion molding assembly, coats the surface of the wire core.

[0038] Specifically, the glue outlet area extends from top to bottom through the mold base 1100 to form an installation cavity, and the glue inlet hole 1101 extends from the side of the mold base 1100 to connect with the glue outlet area. The glue inlet hole 1101 forms a connecting opening on the side wall of the glue outlet area.

[0039] It is understood that the extrusion molding assembly includes an inlet die 1201, an inner die core 1202, and an outer die core 1203. All three dies have through holes, with the outer die core 1203 located at the outlet at the lower end of the dispensing area. The inlet die 1201 positions the wire core, which passes through the through hole into the extrusion molding assembly. Liquid silicone in the assembly flows to the area between the inner die core 1202 and the outer die core 1203 and is extruded through the through hole of the outer die core 1203, thus coating the surface of the wire core with liquid silicone.

[0040] After the inlet die 1201, inner die core 1202 and outer die core 1203 are assembled in the extrusion molding assembly, the coaxial design of the inlet holes of the three is further improved to ensure that the wire cores are routed evenly and that the liquid silicone can be evenly coated on the surface of the wire cores.

[0041] Furthermore, the extrusion die 1000 includes an adjustment structure 1300. The outer die core 1203 contacts the adjustment structure 1300, and the adjustment structure 1300 is movably connected to the die base 1100 to adjust the distance between the outer die core 1203 and the inner die core 1202, thereby adjusting the thickness of the silicone coating on the surface of the wire core. Specifically, the adjustment structure 1300 is provided with an internal thread, and the die base 1100 is provided with an external thread mounting structure. The adjustment structure 1300 is connected to the die base 1100 by a screw drive. By rotating the adjustment structure 1300, the adjustment structure 1300 can move linearly towards or away from the die base 1100 to adjust the distance between the outer die core 1203 and the inner die core 1202.

[0042] Referring to the accompanying drawings, the adjusting structure 1300 is located at one end of the glue dispensing area, and the outer mold core 1203 is located in the glue dispensing area. The adjusting structure 1300 has a through-section for the wire core to pass through. It can be understood that when the adjusting structure 1300 is rotated to move upwards, the outer mold core 1203 moves closer to the inner mold core 1202, thus reducing the distance between the outer mold core 1203 and the inner mold core 1202, thereby reducing the thickness of the silicone coating on the surface of the wire core. Correspondingly, when the adjusting structure 1300 moves downwards, the thickness of the silicone coating on the surface of the wire core can be increased.

[0043] In one implementation, the outer mold core 1203 is connected to the adjusting structure 1300. In this case, the adjusting structure 1300 drives the outer mold core 1203 to move up and down. Specifically, the adjusting structure 1300 is provided with a locking structure, which is connected to the outer peripheral sidewall of the outer mold core 1203 to fix the outer mold core 1203 to the adjusting structure 1300.

[0044] It is understood that the locking structure is movable on the adjusting structure 1300 to allow for the assembly and disassembly of the locking structure and the outer mold core 1203. Specifically, the locking structure is threadedly connected to the side wall of the adjusting structure 1300, and the locking structure penetrates through the side wall of the adjusting structure 1300. Referring to the attached drawings, the outer mold core 1203 is inserted into the through area of ​​the adjusting structure 1300. The side wall of the through area is provided with a threaded hole, and the locking structure is threadedly connected to the inner wall of the threaded hole. Rotating the locking structure can cause the locking structure to press against the outer mold core 1203 or release the outer mold core 1203. In some examples, the locking structure is set as a screw.

[0045] In some examples, multiple locking structures are configured, each equally spaced around the outer mold core 1203. Referring to the attached diagram, the locking structures are horizontally positioned. On one hand, by using multiple locking structures to press against the outer mold core 1203, uniform force is ensured on the outer mold core 1203. On the other hand, by adjusting the extension / retraction of each locking structure, the locking structure can push the outer mold core 1203 to translate, thereby adjusting the position of the central axis of the outer mold core 1203, and further adjusting the alignment of the outer mold core 1203 with the inner mold core 1202. The horizontal and vertical positions of the outer mold core 1203 can be adjusted using the locking structures and the adjusting structure 1300.

[0046] In one embodiment, the first end of the inner mold core 1202 is provided with a conical surface, and the outer mold core 1203 is provided with a recessed area. The recessed area has a conical wall surface, and the wire passage holes of both the inner mold core 1202 and the outer mold core 1203 are located at the tip of the conical surface. The first end of the inner mold core 1202 extends into the recessed area, thereby forming a conical region between the inner mold core 1202 and the outer mold core 1203. In this case, the liquid silicone converges towards the tip of the conical region during extrusion and is extruded from the wire passage hole of the outer mold core 1203.

[0047] In one embodiment, the extrusion molding assembly includes a die flow channel 1400, which is disposed in the discharge area. An inner die core 1202 is connected to the die flow channel 1400; specifically, the second end of the inner die core 1202 is connected to the second end of the die flow channel 1400. Under the extrusion feeding of the extrusion screw, liquid silicone flows from the inlet hole 1101 to the discharge area, and then flows along the outer peripheral sidewall of the die flow channel 1400 to the area between the inner die core 1202 and the outer die core 1203.

[0048] Referring to the attached drawings, the mold runner 1400 is inserted into the discharge area. Furthermore, the outer peripheral sidewall of the second end of the mold runner 1400 is provided with a shoulder to form a limiting part. The shoulder of the mold runner 1400 abuts against the mold base 1100 so that the mold runner 1400 is positioned in the discharge area.

[0049] Furthermore, a diffusion flow path 1401 is provided on the outer peripheral sidewall of the mold flow channel 1400. The diffusion flow path 1401 is recessed, and liquid silicone flows from the injection hole 1101 to the diffusion flow path 1401. It can be understood that the liquid silicone can be evenly distributed on the outer peripheral sidewall of the mold flow channel 1400 via the diffusion flow path 1401 and flows evenly towards the inner mold core 1202.

[0050] The diffusion flow path 1401 includes multiple branched flow channel structures. Specifically, the diffusion flow path 1401 branches to form at least two flow channel structures on the outer peripheral sidewall of the mold flow channel 1400. Each flow channel structure further branches to form at least two flow channel structures, thereby forming a gradually dispersed flow channel structure so that the liquid silicone is dispersed and distributed on the outer peripheral sidewall of the mold flow channel 1400.

[0051] Referring to the attached drawings, the mold runner 1400 is hollow, and the inner mold core 1202 is inserted into the mold runner 1400. Specifically, the second end of the inner mold core 1202 is inserted into the first end of the mold runner 1400. It can be understood that the ejection area is set as a circular cavity, and the mold runner 1400 is set as a cylindrical sleeve structure. Correspondingly, the outer peripheral sidewalls of both the inner mold core 1202 and the outer mold core 1203 are set as circular sidewalls, and the outer peripheral sidewall of the outer mold core 1203 contacts the inner sidewall of the ejection area.

[0052] In some examples, the mold flow channel 1400 connects to one end of the inner mold core 1202 to form a conical surface. After the inner mold core 1202 is connected to the mold flow channel 1400, the two conical surfaces meet, resulting in a smooth transition, which is beneficial to the flow of liquid silicone.

[0053] Furthermore, the extrusion molding assembly includes a first connecting structure 1501, which is hollow and forms a wire passage hole. The first connecting structure 1501 is configured as a cylindrical structure. The inner mold core 1202 is connected to the first connecting structure 1501. The second end of the inner mold core 1202 is connected to the first end of the first connecting structure 1501, and the wire passage holes of the first connecting structure 1501 and the inner mold core 1202 are interconnected.

[0054] It is understood that the first connecting structure 1501 is connected to the mold flow channel 1400. Specifically, the first connecting structure 1501 is inserted into the mold flow channel 1400, and the first end of the first connecting structure 1501 is inserted into the mold flow channel 1400.

[0055] Referring to the attached drawings, the outer peripheral sidewall of the second end of the first connecting structure 1501 is provided with a shoulder to form a limiting part. The shoulder of the first connecting structure 1501 abuts against the mold flow channel 1400 or the mold base 1100 so that the first connecting structure 1501 can be positioned after being inserted into the mold flow channel 1400, thereby positioning the inner mold core 1202.

[0056] In one embodiment, the extrusion molding assembly includes a second connecting structure 1502, which is connected to a first connecting structure 1501. The inlet die 1201 is connected to the second connecting structure 1502, and the second connecting structure 1502 is hollow.

[0057] Furthermore, the second connecting structure 1502 is provided with a negative pressure connection hole, which penetrates the side wall of the second connecting structure 1502. The negative pressure connection hole is connected to a vacuum pump through a pipeline. The vacuum pump can extract the air in the extrusion mold 1000 to form a vacuum environment, thereby avoiding air mixing in the liquid silicone and improving the quality of product extrusion molding.

[0058] In one embodiment, the mold base 1100 is provided with a glue inlet pressure detection port 1601 on the side wall of the glue inlet hole 1101. The glue inlet pressure detection port 1601 is equipped with a pressure sensor for detecting the fluid pressure of liquid silicone when it enters the mold base 1100. It can be understood that the glue inlet pressure detection port 1601 is located close to the inlet of the glue inlet hole 1101.

[0059] In one embodiment, the mold base 1100 is provided with an extrusion pressure detection port 1602 on the side wall of the dispensing area. The extrusion pressure detection port 1602 is equipped with a pressure sensor for detecting the fluid pressure during liquid silicone extrusion. It is understood that the extrusion pressure detection port 1602 is located near the area formed between the inner mold core 1202 and the outer mold core 1203.

[0060] In one embodiment, the mold base 1100 is provided with a cooling water flow path, and the cooling water flow path has an inlet and an outlet on the surface of the mold base 1100.

[0061] In one embodiment, the feeding assembly 2000 includes an extrusion screw 2101 and a screw barrel 2102. The extrusion screw 2101 is disposed in the screw barrel 2102, and the die base 1100 in the extrusion die 1000 is connected to the screw barrel 2102.

[0062] Furthermore, a glue inlet is provided on the side of the screw barrel 2102, and a glue outlet is provided at one end of the screw barrel 2102. Referring to the attached drawing, the glue outlet of the screw barrel 2102 is connected to the mold base 1100.

[0063] Understandably, the rotation of the extrusion screw 2101 conveys liquid silicone from the screw barrel 2102 to the extrusion die 1000. The rotation of the extrusion screw 2101 enables continuous and stable extrusion and delivery of the liquid silicone. Specifically, the feeding assembly 2000 includes a feeding driver 2103, which drives the extrusion screw 2101 to rotate.

[0064] In some examples, the feed driver 2103 includes a motor that drives the extrusion screw 2101 to rotate via gear or belt drive. Furthermore, by controlling and adjusting the motor speed via the host computer of the extruder, the speed of the extrusion screw 2101 can be adjusted, thereby controlling the output speed of the liquid silicone.

[0065] Referring to the accompanying drawings, the feeding assembly 2000 includes a main shaft 2104 and a main mounting base 2200. The main mounting base 2200 is mounted on the frame of the extruder. The main shaft 2104 is mounted on the main mounting base 2200 via rolling bearings. The extrusion screw 2101 is connected to the main shaft 2104. One end of the screw barrel 2102 is connected to the main mounting base 2200, and the other end is connected to a first bracket, which is mounted on the frame. Furthermore, gears are provided on the outer peripheral sidewall of the main shaft 2104, and gears are provided at the output end of the feeding driver 2103.

[0066] In some examples, the feeding assembly 2000 includes a filter plate 2300 located at the outlet of the screw barrel 2102, and the filter plate 2300 has multiple filter holes. It is understood that the filter plate 2300 serves to filter the liquid silica gel and ensure uniform discharge.

[0067] In one embodiment, the extruder includes a first cooling water circulation assembly 2400, which is connected to the feeding assembly 2000. The first cooling water circulation assembly 2400 is used to cool the extrusion screw 2101. Specifically, the extrusion screw 2101 is hollow, and the first cooling water circulation assembly 2400 cools the extrusion screw 2101 by circulating cooling water into it.

[0068] Referring to the accompanying drawings, the first cooling water circulation assembly 2400 includes a rotary joint 2401, an inner cooling water pipe 2402, and an outer cooling water pipe 2403. The inner cooling water pipe 2402 is inserted into the outer cooling water pipe 2403, and the outer cooling water pipe 2403 is inserted into the extrusion screw 2101. Both the inner cooling water pipe 2402 and the outer cooling water pipe 2403 are connected to the rotary joint 2401. The rotary joint 2401 is mounted on the frame via a second bracket 2404, and the rotating structure is connected to the main shaft 2104.

[0069] Furthermore, the rotary joint 2401 is provided with a first inlet 2405 and a first outlet 2406, which are respectively connected to water pipes. One end of the cooling water inner pipe 2402 is connected to the first inlet 2405, and the other end or side of the cooling water inner pipe 2402 is provided with a connecting port. The annular area formed between the outer wall of the cooling water inner pipe 2402 and the inner wall of the cooling water outer pipe 2403 serves as the cooling water return zone, which is connected to the first outlet 2406. Specifically, cooling water flows into the cooling water inner pipe 2402 from the first inlet 2405, flows into the cooling water return zone through the connecting port, and is discharged from the first outlet 2406.

[0070] It is understandable that the rotary joint 2401 can enable the inner cooling water pipe 2402 and the outer cooling water pipe 2403 to rotate with the extrusion screw 2101 while keeping the water pipes in a fixed position, thus preventing the water pipes from twisting and tangling.

[0071] Referring to the attached diagram, the drying assembly 4000 is positioned below the wire diameter detection device 3000 to dry the wire as quickly as possible. Specifically, the drying assembly 4000 includes an oven that creates a high-temperature environment.

[0072] The wire diameter detection device 3000 includes a wire diameter detection component and a heat dissipation base 3100. The wire diameter detection component is mounted on the heat dissipation base 3100. Specifically, the extruded wire passes through the heat dissipation base 3100, and the drying component 4000 is used to dry the wire passing through the heat dissipation base 3100. It is understood that the high-temperature environment generated by the drying component 4000 can lead to inaccurate detection data from the wire diameter detection component and may also cause the wire diameter detection component to malfunction. Therefore, the heat dissipation base 3100 is designed to dissipate heat from the high-temperature air.

[0073] Specifically, the heat dissipation base 3100 includes a layered partition 3101 and a cooling fan. The cooling fan is connected to the side wall of the heat dissipation base 3100. At least one layered partition 3101 is provided and connected to the heat dissipation base 3100, with the partition 3101 lying flat. It can be understood that the layered partition 3101 divides the inner cavity of the heat dissipation base 3100 into heat dissipation channels, and the cooling fan generates a cooling airflow within these channels to expel the high-temperature air entering the heat dissipation base 3100.

[0074] Referring to the attached diagram, the wire diameter detection component is positioned on top of the heat sink base 3100. In this case, hot air may rise to the location of the wire diameter detection component, therefore a cooling fan is designed to exhaust the hot air. Furthermore, a layered partition 3101 is provided on the top of the heat sink base 3100. Referring to the attached diagram, the wire diameter detection component is positioned on the upper side of the layered partition 3101 to reduce the impact of hot air on the wire diameter detection component.

[0075] In some examples, the layered partition 3101 is set to three layers, and the top and bottom of the heat dissipation base 3100 are provided with layered partitions 3101, forming two layers of heat dissipation channels in the heat dissipation base 3100.

[0076] It is understood that the heat dissipation base 3100 is provided with a wire-passing area 3102, which penetrates the heat dissipation base 3100. Referring to the attached drawings, the end of the wire-passing area 3102 penetrates the heat dissipation base 3100 from top to bottom, so that the wire can pass through the heat dissipation base 3100. Correspondingly, the wire-passing area 3102 penetrates the layered partition 3101 installed in the heat dissipation base 3100.

[0077] In one implementation, the side of the wire-passing area 3102 extends to the edge of the heat dissipation base 3100 to form a notch, so that the wire can enter the wire-passing area 3102 of the heat dissipation base 3100 from the side. Referring to the accompanying drawings, the wire-passing area 3102 forms notches on each layer of the heat dissipation base 3100. It is understood that the high-temperature air generated by the drying assembly 4000 can rise from the wire-passing area 3102 and the notch, and this high-temperature air needs to be discharged from the heat dissipation base 3100.

[0078] In one implementation, the wire diameter detection assembly is movable on the heat sink base 3100 to avoid the wire. Specifically, the wire diameter detection assembly includes a wire diameter detector 3201 and a moving component. The moving component is connected to the heat sink base 3100 and is disposed on the top of the heat sink base 3100. The moving component drives the wire diameter detector 3201 to move to avoid the wire. It is understood that when the wire enters the heat sink base 3100 through the notch in the wire passage area 3102, liquid silicone on the surface of the wire is prevented from contaminating the wire diameter detector 3201.

[0079] Driven by the moving component, the wire diameter detector 3201 can move to or away from the wire passage area 3102. The moving component includes a moving driver, which is mounted on the heat dissipation base 3100, and the wire diameter detector 3201 is connected to the moving driver. Furthermore, the moving driver drives the wire diameter detector 3201 to reciprocate via a helical drive, belt drive, or cylinder actuation.

[0080] In some examples, the moving component includes a linear guide structure 3202, to which a wire diameter detector 3201 is connected. Specifically, driven by a moving actuator, the wire diameter detector 3201 reciprocates along the linear guide structure. Further, the linear guide structure includes a guide rail or a guide rod.

[0081] In one implementation, the layered partition 3101 is filled with heat-insulating material to improve the heat insulation of the layered partition 3101. Specifically, the layered partition 3101 is hollow, and the heat-insulating material is filled in the layered partition 3101.

[0082] Of course, as an alternative, it can also be designed as follows: the layered partition 3101 uses two layers to form an intermediate layer, and the thermal insulation material is filled in the intermediate layer.

[0083] Furthermore, the layered partition 3101 is made of metal sheet to improve structural strength. Specifically, the layered partition 3101 is made of stainless steel sheet.

[0084] In one implementation, cooling fans are installed on opposite sides of the heat dissipation channel. One cooling fan sends cold air into the heat dissipation channel, and the cold air mixes with the high-temperature air to effectively cool it down. The other cooling fan sends the hot air out of the heat dissipation channel.

[0085] It is understandable that the layered partition 3101 forms a transverse heat dissipation channel in the heat dissipation base 3100. Therefore, cooling fans are respectively installed on the two opposite sides of the heat dissipation channel to form a unidirectional flow of heat dissipation air in the heat dissipation channel, so as to change the upward high temperature airflow to be discharged with the transverse heat dissipation airflow, and avoid the high temperature airflow from affecting the wire diameter detection component.

[0086] Referring to the attached drawings, the heat dissipation base 3100 includes partitions, which are disposed in the heat dissipation channel. The partitions are respectively connected to the upper and lower sides of the heat dissipation channel. The partitions are arranged along the flow direction of the heat dissipation airflow to form different heat dissipation zones in the heat dissipation channel, reduce the dispersion of heat dissipation airflow, increase the flow rate of heat dissipation airflow, and promote heat dissipation.

[0087] Of course, as an alternative, it can also be designed such that a cooling fan is installed on one side of the heat dissipation channel. Under the action of the cooling fan, an airflow is formed in the heat dissipation channel to exhaust the high-temperature air, which can also play a role in heat dissipation.

[0088] In the description of this specification, the use of terms such as "an embodiment," "some examples," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples" indicates that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0089] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

[0090] In the description of this invention, the presence of a comma ("、") in the patent title indicates an "and" relationship, not an "or" relationship. For example, if the patent title is "A and B", it means that the content claimed by this invention includes: the technical solution with the subject matter title A and the technical solution with the subject matter title B.

Claims

1. An extruder, characterized in that: include An extrusion die (1000) includes a die base (1100) and an extrusion molding assembly. The die base (1100) is provided with a glue inlet (1101) and a glue outlet area. The glue outlet area extends through the die base (1100). The extrusion molding assembly is installed in the glue outlet area. The extrusion molding assembly includes a wire inlet die (1201), an inner die core (1202), and an outer die core (1203). The extrusion molding assembly further includes a mold flow channel (1400), which is disposed in the glue outlet area. The inner mold core (1202) is connected to the mold flow channel (1400). A diffusion flow path (1401) is provided on the outer peripheral sidewall of the mold flow channel (1400). The diffusion flow path (1401) is recessed. Liquid silicone flows from the glue inlet (1101) to the diffusion flow path (1401). The diffusion flow path (1401) includes multiple branched flow channel structures. The diffusion flow path (1401) branches at least two flow channel structures on the outer peripheral sidewall of the mold flow channel (1400). Each flow channel structure further branches to form at least two flow channel structures, thereby forming a gradually dispersed flow channel structure so that the liquid silicone is dispersed and distributed on the outer peripheral sidewall of the mold flow channel (1400). A feeding assembly (2000) is connected to the extrusion die (1000) and is used to feed liquid silicone into the extrusion die (1000). A wire diameter detection device (3000) includes a wire diameter detection component and a heat dissipation base (3100). The wire diameter detection component is disposed on the heat dissipation base (3100). Extruded wire passes through the heat dissipation base (3100). The wire diameter detection component is movable on the heat dissipation base (3100) to avoid the wire. The heat dissipation base (3100) is provided with a wire passage area (3102). The end of the wire passage area (3102) extends from top to bottom through the heat dissipation base (3100) so that the wire can pass through the heat dissipation base (3100). The wire passage area (3102) passes through the layered partition (3101) installed on the heat dissipation base (3100). The side of the wire passage area (3102) extends to the edge of the heat dissipation base (3100) to form a notch so that the wire can enter the wire passage area (3102) of the heat dissipation base (3100) from the side. The wire passage area (3102) forms notches on each layer of the heat dissipation base (3100). The wire diameter detection assembly includes a wire diameter detector (3201) and a moving component. The moving component is connected to the heat sink base (3100) and is located on the top of the heat sink base (3100). The moving component drives the wire diameter detector (3201) to move to avoid the wire. Under the drive of the moving component, the wire diameter detector (3201) can move to or away from the wire crossing area (3102). A drying assembly (4000) is used to dry the wires passing through the heat dissipation base (3100), and the high-temperature air generated by the drying assembly (4000) can rise from the wire passage area (3102) and the gap.

2. The extruder according to claim 1, characterized in that: The extrusion die (1000) includes an adjustment structure (1300), the outer die core (1203) is connected to the adjustment structure (1300), and the adjustment structure (1300) is movably connected to the die base (1100) to adjust the distance between the outer die core (1203) and the inner die core (1202).

3. The extruder according to claim 2, characterized in that: The adjustment structure (1300) is connected to the mold base (1100) by a screw drive. Rotating the adjustment structure (1300) adjusts the distance between the outer mold core (1203) and the inner mold core (1202).

4. The extruder according to claim 2 or 3, characterized in that: The adjustment structure (1300) is provided with a movable locking structure, which is connected to the outer peripheral sidewall of the outer mold core (1203) so that the outer mold core (1203) is fixedly connected to the adjustment structure (1300).

5. The extruder according to claim 4, characterized in that: The locking structure is configured as a plurality of such locking structures, which are threadedly connected to the side wall of the adjusting structure (1300) and penetrate through the side wall of the adjusting structure (1300).

6. The extruder according to claim 1, characterized in that: The heat dissipation base (3100) includes a layered partition (3101) and a cooling fan. The layered partition (3101) is connected to the heat dissipation base (3100), and the cooling fan is connected to the side wall of the heat dissipation base (3100).

7. The extruder according to claim 6, characterized in that: The layered partition (3101) divides the inner cavity of the heat dissipation base (3100) into heat dissipation channels. The heat dissipation fans are respectively arranged on opposite sides of the heat dissipation channels. One side of the heat dissipation fan sends cold air into the heat dissipation channel, and the other side of the heat dissipation fan sends out the hot air in the heat dissipation channel.

8. The extruder according to claim 6 or 7, characterized in that: The layered partition (3101) is filled with heat-insulating material.

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