Runner structure for an extruder

Abstract

This utility model relates to the field of extruder technology, and more particularly to a flow channel structure for an extruder, comprising: a mounting shell connected to the frame plate of the extruder, the mounting shell having a mounting groove extending in a first direction, and the frame plate having a first through hole; an extruder head mounted in the mounting groove, the extruder head having a connecting portion formed at a position corresponding to the first through hole, the connecting portion passing through and connecting to the first through hole, the extruder head having a flow channel hole extending in the first direction, and the extruder head having an extrusion orifice extending in a second direction, the first direction being perpendicular to the second direction, the flow channel hole communicating with the extrusion orifice; a filter element mounted on the connecting portion; and a flow divider assembly mounted on the extrusion orifice, a cable passing through the flow divider assembly, the flow divider assembly communicating with the extrusion orifice, the material entering the flow channel hole from the filter element, and then the material being coated onto the cable by the flow divider assembly. This utility model improves the stability of material flow.

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, and in particular to a flow channel structure for an extruder. Background Technology

[0002] In the field of cable processing, extruders are one of the core pieces of equipment for realizing cable coating material flow (such as insulation layer and sheath material). The rationality of its flow channel structure directly affects the uniformity of cable coating, processing efficiency and finished product quality.

[0003] Existing patent CN216719608U discloses an extrusion device for extruding insulation layers for cables, including an extrusion barrel, an extrusion screw, an extrusion head, and a filter holder. The extrusion screw rotates to extrude molten insulation material from the extrusion barrel. The extrusion head is located at the discharge end of the extrusion barrel, and the filter holder is embedded between the extrusion head and the extrusion barrel. The filter holder has a conical flow channel and a fixing part and a conical platform built around the conical flow channel, with the conical platform extending towards the extrusion head. The port of the conical flow channel directly connects to the outlet of the extrusion barrel, while the end of the conical flow channel communicates with the extrusion hole of the conical platform. The filter is embedded at the end of the conical flow channel. In this existing mechanism, the material is diverted through the extrusion screw and the extrusion head. However, the extrusion screw easily retains a large number of dead corners, where the material tends to solidify, affecting the normal operation of the device. Furthermore, uneven feeding by the extrusion screw makes it difficult to control the quality of the coating material. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the related art. To this end, this invention provides a flow channel structure for an extruder, which solves the technical problem that the material easily condenses inside the equipment and is extruded unevenly in the prior art. The material is filtered by a filter element, and then the flow distribution component divides the material, so that the material can be evenly coated on the cable, thereby improving the processing quality of the material coating on the cable.

[0005] This utility model provides a flow channel structure for an extruder, including: The mounting housing is connected to the frame plate of the extruder. The mounting housing has a mounting groove extending in a first direction, and the frame plate has a first through hole. An extrusion head is installed in the mounting groove. The extrusion head has a connecting part formed at the position corresponding to the first through hole. The connecting part passes through and connects to the first through hole. The extrusion head has a flow channel hole extending in a first direction and an extrusion hole extending in a second direction. The first direction is perpendicular to the second direction. The flow channel hole communicates with the extrusion hole. A filter element, which is installed on the connecting portion; A flow divider assembly is installed in the extrusion orifice. A cable passes through the flow divider assembly, which is connected to the extrusion orifice. Material enters the flow channel orifice from the filter element, and then the material is wrapped around the cable after passing through the flow divider assembly.

[0006] A further improvement of the flow channel structure of the extruder of this utility model is that the filter element is cylindrical, and an annular groove is provided in the middle of the outer side wall of the filter element.

[0007] A further improvement of the flow channel structure of the extruder of this utility model is that the filter element has a plurality of filter holes extending along a first direction, the side of the filter element away from the mounting shell is recessed inward to form a material collection groove, and one end of the filter hole corresponds to the material collection groove.

[0008] A further improvement of the flow channel structure of the extruder of this utility model is that the flow splitting component includes a feed head, a connector, a flow splitter and a discharge head arranged coaxially and connected in sequence. A comb and a pressure head are coaxially arranged inside the flow splitter. A pressure channel is formed between the outer side wall of the comb and the inner side wall of the pressure head. A flow splitting surface is formed on the outer side of the flow splitter. A plurality of feed holes are spaced apart in the flow splitter. The feed holes correspond to the flow splitting surface and are connected to the pressure channel. The cable passes through the feed head, connector, distributor and discharge head in sequence. The cable passes through the comb and pressure head in the distributor. The material in the flow channel enters the feed hole after being diverted by the distribution surface. Then the material is squeezed out after passing through the pressure channel so that the material covers the cable that passes through the pressure head.

[0009] A further improvement of the flow channel structure of the extruder of this utility model is that the comber forms a conical section at the end of the pressure head, and the pressure head forms a conical groove corresponding to the conical section.

[0010] A further improvement of the flow channel structure of the extruder of this utility model is that an arc-shaped groove is formed at the end of the discharge head away from the distributor.

[0011] A further improvement of the flow channel structure of the extruder of this utility model is that the flow dividing surface is formed with flow dividing protrusions.

[0012] A further improvement of the flow channel structure of the extruder of this utility model is that the discharge head is connected to an adjusting plate, and by rotating the adjusting plate, the flow splitting component is driven to rotate within the extrusion hole.

[0013] A further improvement of the flow channel structure of the extruder of this utility model is that the mounting shell is provided with a support hole, the extruder has a support rod, and the support rod is connected to the support hole.

[0014] This utility model discloses an extruder flow channel structure. By incorporating a mounting shell, it facilitates installation on a frame plate. An extrusion head is mounted within the mounting shell, enabling convenient material conveying and extrusion operations. The extrusion head is connected to the frame plate via a connecting part through a first through hole, ensuring connection stability and accuracy, and allowing the entire flow channel structure to be securely mounted on the extruder. Simultaneously, a filter element is installed at the connecting part, effectively filtering the material before it enters the flow channel hole, removing impurities and particles, improving the purity of the material, and thus enhancing the quality of the coated cable. A flow divider component is installed at the extrusion hole, allowing the cable to pass smoothly through, ensuring smooth cable passage during extrusion. The flow divider component connects to the extrusion hole, enabling the material to pass through evenly and coat the cable. Through a reasonable flow distribution design, the material can fully, evenly, and tightly wrap the cable, avoiding problems such as uneven wrapping and gaps. This improves the effect and quality of cable wrapping, enabling the extruder to better meet actual production needs and providing more reliable assurance for cable production. This structural design facilitates the replacement and maintenance of the flow distribution components. When the flow distribution components are damaged or need to be adjusted according to different cable specifications and material characteristics, the operation can be completed quickly and conveniently, reducing equipment downtime and improving production efficiency.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the flow channel structure of an extruder provided by this utility model. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the flow channel structure of an extruder provided by this utility model. Figure 2 .

[0019] Figure 3 This is a schematic diagram of a filter element in the flow channel structure of an extruder provided by this utility model.

[0020] Figure 4 This is a schematic diagram of the mounting shell in the flow channel structure of an extruder provided by this utility model.

[0021] Figure 5 This is a cross-sectional schematic diagram of the extrusion head in the flow channel structure of an extruder provided by this utility model.

[0022] Figure 6 This is a cross-sectional schematic diagram of the flow distribution component in the flow channel structure of an extruder provided by this utility model.

[0023] Figure 7 This is a schematic diagram of a flow divider in the flow channel structure of an extruder provided by this utility model. Figure 1 .

[0024] Figure 8 This is a schematic diagram of a flow divider in the flow channel structure of an extruder provided by this utility model. Figure 2 .

[0025] Figure label: 1. Frame plate; 2. Mounting shell; 3. Extruder head; 4. Filter element; 5. Diverter assembly; 6. Adjusting plate; 401. Annular groove; 402. Filter hole; 403. Collection trough; 201. Mounting groove; 202. Arc-shaped part; 301. Connecting part; 302. Connecting groove; 303. Flow channel hole; 304. Extrusion hole; 51. Feed head; 52. Press head; 53. Connector head; 54. Diverter; 55. Discharge head; 56. Diverter surface; 57. Press channel; 541. Feed hole; 542. Diverter protrusion; 58. Comb. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. The following embodiments are used to illustrate this utility model but should not be used to limit its scope.

[0027] The following is combined Figures 1 to 8 The present invention describes the flow channel structure of an extruder, comprising: Mounting shell 2, which is connected to the frame plate 1 of the extruder, has a mounting groove 201 extending in a first direction, and the frame plate 1 has a first through hole. An extrusion head 3 is installed in the mounting groove 201. The extrusion head 3 has a connecting part 301 formed at the position corresponding to the first through hole. The connecting part 301 passes through and connects to the first through hole. The extrusion head 3 has a flow channel hole 303 extending in a first direction and an extrusion hole 304 extending in a second direction. The first direction is perpendicular to the second direction. The flow channel hole 303 communicates with the extrusion hole 304. Filter element 4, which is installed on the connecting part 301; The flow divider 5 is installed in the extrusion hole 304. The cable passes through the flow divider 5 and is connected to the extrusion hole 304. The material enters the flow channel hole 303 from the filter element 4, and then the material is wrapped around the cable after passing through the flow divider 5.

[0028] Preferably, the flow channel structure of the extruder of this utility model is conveniently installed on the frame plate 1 by setting a mounting shell 2, and the extrusion head 3 is set on the mounting shell 2 to facilitate the conveying and extrusion operation of the material. The extrusion head 3 is connected to the first through hole of the frame plate 1 through the connecting part 301, which ensures the stability and accuracy of the connection and allows the entire flow channel structure to be firmly installed on the extruder. At the same time, the filter element 4 is installed on the connecting part 301 to effectively filter the material before it enters the flow channel hole 303, which can remove impurities and particles from the material, improve the purity of the material, and thus improve the quality of the coated cable. The diverting component 5 is installed in the extrusion hole 304, and the cable can pass smoothly through the diverting component 5 to ensure the smooth passage of the cable during the extrusion process. The diverting component 5 connects to the extrusion hole 304, which allows the material to pass through evenly and coat the cable. Through a reasonable flow distribution design, the material can fully, evenly, and tightly wrap the cable, avoiding problems such as uneven wrapping and gaps. This improves the effect and quality of cable wrapping, enabling the extruder to better meet actual production needs and providing more reliable assurance for cable production. This structural design facilitates the replacement and maintenance of the flow distribution component 5. When the flow distribution component 5 is damaged or needs to be adjusted according to different cable specifications and material characteristics, the operation can be completed quickly and conveniently, reducing equipment downtime and improving production efficiency.

[0029] Preferably, in actual production, the flow channel structure of this extruder can be flexibly adjusted according to different cable production requirements, including the size and shape of the flow channel orifice 303 and the extrusion orifice 304, as well as the specific parameters of the flow divider component 5. For example, for cables of different diameters, a flow divider component 5 with a suitable inner diameter can be replaced to ensure that the material perfectly coats the cable, achieving high-quality cable production. Simultaneously, this structural design also facilitates precise control of the entire extrusion process. By adjusting parameters such as the material flow rate and pressure, the cable coating effect can be further optimized to meet diverse production needs.

[0030] In a preferred embodiment of the flow channel structure of an extruder according to this utility model, such as Figure 3 As shown, the filter element 4 is cylindrical, and an annular groove 401 is formed in the middle of the outer side wall of the filter element 4.

[0031] Specifically, such as Figure 3 As shown, the filter element 4 has a plurality of filter holes 402 extending along a first direction. The side of the filter element 4 away from the mounting shell 2 is recessed inward to form a material collection groove 403. One end of the filter hole 402 corresponds to the material collection groove 403.

[0032] Specifically, such as Figure 5 As shown, Figure 5 This is a schematic diagram of the extrusion head after being cut through section A. The connecting part 301 has a connecting groove 302 corresponding to the filter element 4. The filter element 4 is installed in the connecting groove 302, and the part of the filter element 4 located in the connecting groove 302 is in close contact with the inner wall of the connecting groove 302.

[0033] Furthermore, such as Figure 6 , Figure 7 and Figure 8 As shown, where Figure 6 This is a schematic diagram of the diversion assembly after being cut through section B. The diversion assembly 5 includes a feed head 51, a connector 53, a diverter 54, and a discharge head 55, which are coaxially arranged and connected in sequence. A comber 58 and a pressing head 52 are coaxially arranged inside the diverter 54. A pressing channel 57 is formed between the outer side wall of the comber 58 and the inner side wall of the pressing head 52. A diversion surface 56 is formed on the outer side of the diverter 54. The diverter 54 is provided with a plurality of feed holes 541 spaced apart. The feed holes 541 correspond to the diversion surface 56 and are connected to the pressing channel 57. The cable passes through the feed head 51, connector 53, distributor 54 and discharge head 55 in sequence. The cable passes through the comb 58 and pressure head 52 in the distributor 54. The material in the flow channel 303 is diverted by the diversion surface 56 and enters the feed hole 541. Then the material is squeezed out after passing through the pressure channel 57, so that the material covers the cable that passes through the pressure head 52.

[0034] Preferably, the diverting component 5 ensures that the material is evenly distributed before entering the pressing channel 57, thereby guaranteeing that all parts of the cable are uniformly coated with the material. The feed head 51 guides the cable smoothly into the diverting component 5, and its internal structural design effectively reduces the resistance when the cable enters, preventing the cable from bending or twisting. The connector 53 connects the feed head 51 and the diverter 54, ensuring the structural stability of the entire diverting component 5. The comber 58 combs the cable, keeping it in a neat arrangement and preventing it from tangling, thus ensuring that the material can smoothly coat the cable. The pressing head 52 compacts the material passing through the pressing channel 57, making the material and the cable more tightly bonded. The discharge head 55 ensures that the cable coated with material can be smoothly output, shaping the outflowing material to make the cable's appearance more regular. At the same time, the size and shape of the discharge head 55 can be adjusted according to different production needs to adapt to the production of various cable specifications. By finely adjusting the parameters of each component—the feed head 51, connector 53, distributor 54, and discharge head 55—precise control of the cable coating effect can be achieved. For example, adjusting the feed speed of the feed head 51 controls the supply rhythm of the material, and adjusting the pressure of the pressure head 52 changes the coating thickness of the material. Moreover, the modular design of this distributor assembly 5 makes maintenance and component replacement more convenient and quick, greatly improving production efficiency.

[0035] Specifically, such as Figure 6 , Figure 7 and Figure 8 As shown, the comb 58 forms a conical section at the end corresponding to the pressing head 52, and the pressing head 52 forms a conical groove corresponding to the conical section.

[0036] Preferably, the conical section and the conical groove cooperate to achieve precise docking and tight connection between the comb 58 and the pressing head 52, while ensuring that the material is evenly coated on the cable. During maintenance and cleaning, the relatively simple structure of the conical section and the conical groove facilitates disassembly and installation, allowing workers to easily clean and inspect them, ensuring the equipment is always in good working order.

[0037] Specifically, such as Figure 6 , Figure 7 and Figure 8 As shown, an arc-shaped groove is formed at the end of the discharge head 55 away from the distributor 54. The arc-shaped groove helps to protect the cable that has just been coated with the flowing material, and facilitates the stable formation of the cable coated with the flowing material.

[0038] Specifically, such as Figure 7 and Figure 8As shown, the diversion surface 56 has diversion protrusions 542. The diversion protrusions 542 can effectively divert and guide the incoming material. When the material comes into contact with the diversion protrusions 542, it will be evenly dispersed, allowing the material to flow smoothly on the diversion surface 56. This helps to improve the quality of the material covering the cable and avoids situations where the local coverage is too thick or too thin.

[0039] Specifically, such as Figure 1 and Figure 2 As shown, the discharge head 55 is connected to an adjusting plate 6. By rotating the adjusting plate 6, the flow-dividing component 5 is driven to rotate within the extrusion hole 304. The rotation operation of the adjusting plate 6 is relatively simple. Operators can easily achieve the rotation of the flow-dividing component 5 within the extrusion hole 304 through simple manual operation or with the help of small tools.

[0040] Preferably, the mounting shell 2 has an arc-shaped portion 202 at the position corresponding to the flow divider 5, which facilitates the smooth installation of the flow divider 5 into the extrusion hole 304.

[0041] Specifically, such as Figure 4 As shown, the mounting shell 2 has a support hole, and the extruder has a support rod. The support rod is connected to the support hole, which improves the installation stability of the mounting shell 2. The connection between the support rod and the support hole also facilitates the assembly and disassembly of the equipment. When it is necessary to maintain, clean or replace parts of the extruder or flow channel structure, the staff can easily remove the extruder from the mounting shell 2, which greatly improves the maintainability and efficiency of the equipment.

[0042] In one specific implementation, by rotating the adjusting plate 6, the position of the diversion component 5 within the extrusion hole 304 is adjusted. The cable enters the diversion component 5, and the material passes through the filter element 4 into the flow channel hole 303, and then into the extrusion hole 304. The material is diverted by the diversion protrusion 542 and flows on the diversion surface 56, and then enters the pressing channel 57 through the feed hole 541, so that the material is evenly coated on the cable passing through the pressing head 52. The cable coated with material then passes through the discharge head 55 to complete the processing of the cable coated with material.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A flow channel structure of an extruder, characterized by, include: The mounting housing is connected to the frame plate of the extruder. The mounting housing has a mounting groove extending in a first direction, and the frame plate has a first through hole. An extrusion head is installed in the mounting groove. The extrusion head has a connecting part formed at the position corresponding to the first through hole. The connecting part passes through and connects to the first through hole. The extrusion head has a flow channel hole extending in a first direction and an extrusion hole extending in a second direction. The first direction is perpendicular to the second direction. The flow channel hole communicates with the extrusion hole. A filter element, which is installed on the connecting portion; A flow divider assembly is installed in the extrusion orifice. A cable passes through the flow divider assembly, which is connected to the extrusion orifice. Material enters the flow channel orifice from the filter element, and then the material is wrapped around the cable after passing through the flow divider assembly.

2. The flow channel structure of an extruder according to claim 1, wherein The filter element is cylindrical, and an annular groove is formed in the middle of the outer side wall of the filter element.

3. The flow channel structure of an extruder according to claim 2, wherein The filter element has a plurality of filter holes extending along a first direction. The side of the filter element away from the mounting shell is recessed inward to form a material collection groove, and one end of the filter hole corresponds to the material collection groove.

4. The flow channel structure of an extruder according to claim 1, wherein The diversion assembly includes a feed head, a connector, a diverter, and a discharge head that are coaxially arranged and connected in sequence. A comb and a pressing head are coaxially arranged inside the diverter. A pressing channel is formed between the outer side wall of the comb and the inner side wall of the pressing head. A diversion surface is formed on the outer side of the diverter. The diverter is provided with a plurality of feed holes spaced apart. The feed holes correspond to the diversion surface and are connected to the pressing channel. The cable passes through the feed head, connector, distributor and discharge head in sequence. The cable passes through the comb and pressure head in the distributor. The material in the flow channel enters the feed hole after being diverted by the distribution surface. Then the material is squeezed out after passing through the pressure channel so that the material covers the cable that passes through the pressure head.

5. The flow channel structure of an extruder according to claim 4, wherein The comber forms a conical section at the end corresponding to the pressing head, and the pressing head forms a conical groove corresponding to the conical section.

6. The flow channel structure of an extruder according to claim 4, wherein An arc-shaped groove is formed at the end of the discharge head away from the distributor.

7. The flow channel structure of an extruder according to claim 4, wherein The flow-dividing surface has flow-dividing protrusions.

8. The flow channel structure of an extruder according to claim 4, wherein The discharge head is connected to an adjustment plate. By rotating the adjustment plate, the flow-dividing component is driven to rotate within the extrusion hole.

9. The flow channel structure of an extruder according to claim 1, wherein The mounting shell has a support hole, and the extruder has a support rod connected to the support hole.

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