Double-color extrusion device for cable with bracket

Abstract

The utility model discloses a double-color extrusion device for a cable with a support. The double-color extrusion device comprises an extrusion assembly; the forming machine head is provided with a threading channel, a wire jacket extrusion cavity channel and a support extrusion cavity channel, the wire jacket extrusion cavity channel comprises a wire jacket injection channel, a wire jacket filling cavity, a wire jacket extrusion channel, a wire jacket forming cavity and a wire jacket wrapping cavity, the wire jacket forming cavity is in a circular ring shape and surrounds the threading channel, and the wire jacket wrapping cavity is in a circular ring shape and surrounds one end of the threading channel. The stent extrusion cavity channel comprises a stent injection channel, a stent filling cavity, a stent extrusion channel and a stent forming cavity, and the stent forming cavity surrounds the wire jacket coating cavity; and the sectioning assembly comprises two sectioning driving mechanisms and two sectioning pressing plates, and the sectioning pressing plates are provided with wire jacket receding grooves matched with the wire jacket coating cavities. According to the utility model, the extrusion production efficiency is high, the reliable double-color extrusion molding effect can be realized, the flexibility of extrusion processing is strong, and the processing requirements of different cables can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of cable manufacturing, and particularly relates to a two-color extrusion device for a cable with a bracket. Background Art

[0002] Cables can be used in multiple fields such as communication, construction, industry, and energy. Cables play an indispensable role in production and life, mainly for multiple functions such as control installation, connecting devices, and transmitting electricity. Network cables are a type of cable used for communication.

[0003] Cables mainly include a core for signal transmission and an insulating sheath. Generally, the sheath is coated outside the core by extrusion. In different application scenarios, the sheaths of cables usually need to be designed with different structures. To meet the usage requirements of special scenarios, two different structures need to be coated outside the core to meet specific usage needs. In related technologies, this type of cable structure is usually manufactured through two independent extrusions. This method has problems such as low production efficiency and unstable structure. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a two-color extrusion device for a cable with a bracket, which has high production efficiency, a stable and reliable extrusion structure, and strong flexibility.

[0005] A two-color extrusion device for a cable with a bracket according to an embodiment of the utility model includes:

[0006] An extrusion assembly, including a sheath extruder and a bracket extruder;

[0007] A forming head, provided with a wire threading channel, a sheath extrusion channel, and a bracket extrusion channel. The wire threading channel is used for threading the core. The sheath extrusion channel includes a sheath injection channel, and a sheath filling cavity, a sheath extrusion channel, a sheath forming cavity, and a sheath coating cavity that are sequentially connected along the advancing direction of the core. One side of the sheath filling cavity is connected to the sheath injection channel, and the end of the sheath injection channel far from the sheath filling cavity is connected to the sheath extruder. The sheath forming cavity is circular and surrounds the outside of the wire threading channel. The sheath coating cavity is circular and surrounds the outside of one end of the wire threading channel. The sheath coating cavity communicates with the wire threading channel. The bracket extrusion channel includes a bracket injection channel, and a bracket filling cavity, a bracket extrusion channel, and a bracket forming cavity that are sequentially connected along the advancing direction of the core. One side of the bracket filling cavity is connected to the bracket injection channel, and the end of the bracket injection channel far from the bracket filling cavity is connected to the bracket extruder. The bracket forming cavity surrounds the outside of the sheath coating cavity, and the bracket forming cavity communicates with the sheath coating cavity;

[0008] The segmented component includes two segmented driving mechanisms and two segmented pressing plates. Both segmented pressing plates are located at one end of the bracket forming cavity away from the bracket extrusion channel. A wire sleeve relief groove matching the wire sleeve covering cavity is provided on one side of each segmented pressing plate. The two wire sleeve relief grooves are located on opposite sides of the axis of the wire threading channel. Each segmented pressing plate is respectively connected to the corresponding segmented driving mechanism, and the segmented driving mechanism is used to drive the segmented pressing plate to move relative to the axis of the wire threading channel.

[0009] In this embodiment, the bracket forming cavity includes an annular cavity and a plurality of arm cavities. Both ends of each arm cavity are respectively connected to the annular cavity and the wire sleeve covering cavity. The arm cavities are equally spaced around the wire sleeve covering cavity. The wire sleeve relief groove is semicircular, and the radius of the wire sleeve relief groove is equal to the radius of the wire sleeve covering cavity.

[0010] In this embodiment, the bracket extrusion channel includes an annular channel and a plurality of arm channels. Both ends of the annular channel are respectively connected to the bracket filling cavity and the annular cavity. Opposite ends of each arm channel are respectively connected to the bracket filling cavity and the corresponding arm cavity.

[0011] In this embodiment, the flow cross-sectional area of the wire sleeve extrusion channel is smaller than the flow cross-sectional area of the wire sleeve filling cavity, and the flow cross-sectional area of the bracket extrusion channel is smaller than the flow cross-sectional area of the bracket filling cavity.

[0012] In this embodiment, the flow cross-sectional area of the wire sleeve extrusion channel is greater than or equal to the flow cross-sectional area of the wire sleeve forming cavity, and the flow cross-sectional area of the bracket extrusion channel is greater than or equal to the flow cross-sectional area of the bracket forming cavity.

[0013] In this embodiment, the bracket extruder includes a bracket extrusion barrel, a bracket screw, a driven gear, a driving gear, and a bracket motor. The bracket screw is arranged in the bracket extrusion barrel. The driven gear is connected to one end of the bracket screw. The driven gear is located outside the bracket extrusion barrel. The driving gear is connected to the bracket motor. The driving gear is meshed with the driven gear. The driving gear is a sector gear. The outlet of the bracket extrusion barrel is connected to the bracket injection channel.

[0014] In this embodiment, the wire sleeve extruder includes a wire sleeve extrusion barrel, a wire sleeve screw, and a wire sleeve motor. The wire sleeve screw is arranged in the wire sleeve extrusion barrel. The wire sleeve screw is connected to the wire sleeve motor. The outlet of the wire sleeve extrusion barrel is connected to the wire sleeve injection channel.

[0015] In this embodiment, both the wire sleeve extruder and the bracket extruder are located on the same side of the forming head.

[0016] The embodiments of the present utility model have at least the following beneficial effects:

[0017] By setting two extruders to separately extrude and manufacture the wire sleeve and the bracket, and cooperating with two sets of extrusion channels, accurate extrusion control can be achieved for these two parts of the cable simultaneously, with high extrusion production efficiency. The wire sleeve forming cavity and the bracket forming cavity are connected through the wire sleeve covering cavity, which can prevent the two parts of the molten material in the wire sleeve forming cavity and the bracket forming cavity from influencing each other, and can achieve the effect of reliable two-color extrusion molding. Through the transition of the wire sleeve covering cavity, it can not only provide a certain forming space for the wire sleeve, but also improve the tightness of the structure after the wire sleeve and the bracket are formed. The structure of the formed cable is stable and firm. The extrusion directions of the wire sleeve extrusion channel and the bracket extrusion channel are the same, which can effectively reduce the confrontation between the wire sleeve and the bracket during extrusion, thereby further improving the stability of the extruded structure. In addition, a segmentation component is arranged at the outlet of the bracket forming cavity to block the output of the bracket forming cavity. By controlling the opening and closing of the two segmentation pressing plates according to actual needs, a segmented bracket structure can be extruded, which can meet the extrusion processing requirements of cables with segmented brackets. The flexibility of extrusion processing is strong, and it can adapt to the processing requirements of different cables. Moreover, the wire sleeve relief groove can provide relief for the continuous extrusion of the wire sleeve, which can effectively ensure the continuous reliability of the wire sleeve of the manufactured cable, and the extrusion processing action is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

[0019] Figure 1 is a three-dimensional structural schematic diagram of a two-color extrusion device for a cable with a bracket according to an embodiment of the present utility model;

[0020] Figure 2 is a structural schematic diagram of a partially cut-open two-color extrusion device for a cable with a bracket according to an embodiment of the present utility model;

[0021] Figure 3 is a structural schematic diagram of a partially cut-open two-color extrusion device for a cable with a bracket according to an embodiment of the present utility model from another perspective;

[0022] Figure 4 is a perspective structural schematic diagram of a forming head of a two-color extrusion device for a cable with a bracket according to an embodiment of the present utility model;

[0023] Figure 5 is a front view structural schematic diagram of a forming head of a two-color extrusion device for a cable with a bracket according to an embodiment of the present utility model;

[0024] Figure 6 is along Figure 5 the sectional structural schematic diagram taken along A-A' in

[0025] Reference numerals:

[0026] Wire sheath extruder 1100, wire sheath extrusion barrel 1110, wire sheath screw 1120, wire sheath motor 1130, bracket extruder 1200, bracket extrusion barrel 1210, bracket screw 1220, driven gear 1230, driving gear 1240, bracket motor 1250;

[0027] Molding head 2000, wire threading channel 2100, wire sheath extrusion cavity 2200, wire sheath injection channel 2210, wire sheath filling cavity 2220, wire sheath extrusion channel 2230, wire sheath forming cavity 2240, wire sheath coating cavity 2250, bracket extrusion cavity 2300, bracket injection channel 2310, bracket filling cavity 2320, bracket extrusion channel 2330, annular channel 2331, arm channel 2332, bracket forming cavity 2340, annular cavity 2341, arm cavity 2342;

[0028] Segmented component 3000, segmented driving mechanism 3100, segmented pressure plate 3200, wire sheath relief groove 3210. Specific embodiments

[0029] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where 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 drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, left, right, front, back, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0031] In the description of the present invention, if the wire sheath and the bracket are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installation, and connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0033] Cables play an indispensable role in production and life. They are mainly used for multiple functions such as control installation, connecting devices, and transmitting electricity. Cables can be used in many fields such as communication, construction, industry, and energy. Network cables are a type of cable used for communication. Cables mainly include a core for signal transmission and an insulating sheath. Generally, the sheath is coated around the core by extrusion. In different application scenarios, the sheaths of cables usually need to be designed with different structures. To meet the usage requirements of special scenarios, two different structures need to be coated around the core to meet specific electrical performance, mechanical strength, and aesthetic requirements. For example, to adapt to the usage requirements of harsh environments, some cables need to be provided with a support structure. In related technologies, this type of cable is usually manufactured by two independent extrusions. This method has problems such as low production efficiency and unstable structure. It is difficult to ensure the tight structure of the two insulating structures during the two extrusion processes, which affects the overall quality and reliability of the cable.

[0034] The following refers to the attached to the attached Figure 1 , describe the two-color extrusion device for a cable with a support of the embodiment of the present invention, which has high production efficiency, stable and reliable extrusion structure, and strong flexibility.

[0035] Refer to Figure 6 Figures 1 to 6 , a two-color extrusion device for a cable with a support of the embodiment of the present invention, includes:

[0036] An extrusion assembly, including a sheath extruder 1100 and a support extruder 1200;

[0037] The forming head 2000 is provided with a wire threading channel 2100, a sheath extrusion channel 2200 and a support extrusion channel 2300. The wire threading channel 2100 is used for threading the wire core to be coated and protected, and the wire core can advance through the wire threading channel 2100. The sheath extrusion channel 2200 includes a sheath injection channel 2210, and a sheath filling cavity 2220, a sheath extrusion channel 2230, a sheath forming cavity 2240, and a sheath coating cavity 2250 arranged in sequence along the advancing direction of the wire core. One side of the sheath filling cavity 2220 is connected to the sheath injection channel 2210, and the end of the sheath injection channel 2210 far from the sheath filling cavity 2220 is connected to the output end of the sheath extruder 1100. The other side of the sheath filling cavity 2220 is connected to the sheath extrusion channel 2230, and the end of the sheath extrusion channel 2230 far from the sheath filling cavity 2220 is connected to the sheath forming cavity 2240. The sheath forming cavity 2240 is annular and surrounds the outside of the wire threading channel 2100. The sheath forming cavity 2240 is not directly communicated with the wire threading channel 2100. The sheath coating cavity 2250 is annular and is connected to the end of the sheath forming cavity 2240 far from the sheath extrusion channel 2230. The sheath coating cavity 2250 surrounds the outside of one end of the wire threading channel 2100, and the sheath coating cavity 2250 is communicated with the wire threading channel 2100. The support extrusion channel 2300 includes a support injection channel 2310, and a support filling cavity 2320, a support extrusion channel 2330, and a support forming cavity 2340 arranged in sequence along the advancing direction of the wire core. The extrusion directions of the sheath extrusion channel 2200 and the support extrusion channel 2300 are the same, which can effectively reduce the high-resistant extrusion between the extruded sheath and the support, thereby effectively ensuring the stability of the extrusion structure. One side of the support filling cavity 2320 is connected to the support injection channel 2310, and the end of the support injection channel 2310 far from the support filling cavity 2320 is connected to the output end of the support extruder 1200. The other side of the support filling cavity 2320 is connected to the support extrusion channel 2330, and the end of the support extrusion channel 2330 far from the support filling cavity 2320 is connected to the support forming cavity 2340. The support forming cavity 2340 surrounds the outside of the sheath coating cavity 2250, and the support forming cavity 2340 is communicated with the sheath coating cavity 2250;

[0038] The segmented component 3000 includes two segmented driving mechanisms 3100 and two segmented pressing plates 3200. Both of the two segmented pressing plates 3200 are located at one end of the bracket forming cavity 2340 away from the bracket extrusion channel 2330. A wire sleeve relief groove 3210 matching the wire sleeve coating cavity 2250 is provided on one side of each segmented pressing plate 3200. The two wire sleeve relief grooves 3210 are located on opposite sides of the axis of the wire threading channel 2100, and the openings of the two wire sleeve relief grooves 3210 face each other. The two wire sleeve relief grooves 3210 are used to provide relief for the wire sleeve output from the wire sleeve coating cavity 2250. Each segmented pressing plate 3200 is respectively connected to two corresponding segmented driving mechanisms 3100. The segmented driving mechanism 3100 is used to drive the segmented pressing plate 3200 to move closer to or away from the axis of the wire threading channel 2100, so as to merge or separate the two wire sleeve relief grooves 3210. Preferably, the segmented driving mechanism 3100 can be set as a cylinder.

[0039] By setting two extruders for extruding the wire sleeve and the bracket respectively, and cooperating with two groups of extrusion channels, accurate extrusion control can be achieved for these two parts of the cable structure at the same time, with high extrusion production efficiency. The wire sleeve forming cavity 2240 and the bracket forming cavity 2340 are connected through the wire sleeve coating cavity 2250, which can avoid the mutual influence of the two parts of the molten material in the wire sleeve forming cavity 2240 and the bracket forming cavity 2340, and can achieve the effect of reliable two-color extrusion molding. Through the transition of the wire sleeve coating cavity 2250, it can not only provide a certain forming space for the wire sleeve, but also improve the tightness of the structure after the wire sleeve and the bracket are formed. The structure of the formed cable is stable and firm, and the electrical performance and mechanical strength of the produced cable are good. The extrusion directions of the wire sleeve extrusion channel 2200 and the bracket extrusion channel 2300 are the same, which can effectively reduce the confrontation between the wire sleeve and the bracket during extrusion, thereby further improving the stability of the extruded structure.

[0040] In addition, a segmented component 3000 is provided at the outlet of the bracket forming cavity 2340 to block the output of the bracket forming cavity 2340 under specified conditions. By controlling the opening and closing of the two segmented pressing plates 3200 according to actual needs, a segmented bracket structure can be extruded, which can meet the extrusion processing requirements of cables with segmented brackets. The extrusion processing has strong flexibility and can adapt to the processing requirements of different cables. Moreover, the wire sleeve relief groove 3210 can provide relief for the continuous extrusion of the wire sleeve, which can effectively ensure the continuity and reliability of the wire sleeve of the produced cable, and the extrusion processing action is stable and reliable.

[0041] It can be understood that the stent forming cavity 2340 includes an annular cavity 2341 and a plurality of arm cavities 2342. The two ends of each arm cavity 2342 are respectively connected to the annular cavity 2341 and the wire sleeve coating cavity 2250. The arm cavities 2342 are arranged at equal intervals around the wire sleeve coating cavity 2250. The stent forming cavity 2340 can form a stent structure with good deformation ability, thereby improving the structural stability of the extruded cable. The wire sleeve relief groove 3210 is semicircular, and the radius of the wire sleeve relief groove 3210 is equal to the radius of the wire sleeve coating cavity 2250.

[0042] When the two segmented pressing plates 3200 are combined and abutted, the two wire sleeve relief grooves 3210 can form a relief hole matching the wire sleeve coating cavity 2250, which can supply the wire core after being coated with the wire sleeve to output. At this time, the segmented pressing plate 3200 blocks the outlet of the forming stent cavity, that is, the segmented pressing plate 3200 blocks one end of the forming stent cavity far from the stent extrusion channel 2330. According to the preset time, the two segmented driving mechanisms 3100 are controlled. The two segmented driving mechanisms 3100 control the two segmented pressing plates 3200 to open and close every fixed time, so as to output the segmented stent extruded outside the wire sleeve.

[0043] It can be understood that the stent extrusion channel 2330 includes an annular channel 2331 and a plurality of arm channels 2332. The number of arm channels 2332 is equal to the number of arm cavities 2342. The opposite ends of the annular channel 2331 are respectively connected to the stent filling cavity 2320 and the annular cavity 2341. The opposite ends of each arm channel 2332 are respectively connected to the stent filling cavity 2320 and the corresponding arm cavity 2342. By setting the shape of the stent extrusion channel 2330 to match the shape of the stent forming cavity 2340, the extrusion efficiency can be effectively improved and the extrusion effect can be ensured. <>

[0044] It can be understood that the cross-section of the wire sleeve extrusion channel 2230 and the cross-section of the filled wire sleeve are both annular. The flow cross-sectional area of the wire sleeve extrusion channel 2230 is smaller than the flow cross-sectional area of the wire sleeve filling cavity 2220, which can ensure that the molten plastic can be effectively extruded in the wire sleeve extrusion channel 2230 and filled into the wire sleeve forming cavity 2240, and then an extruded wire sleeve with stable structure is formed. The flow cross-sectional area of the stent extrusion channel 2330 is smaller than the flow cross-sectional area of the stent filling cavity 2320, which can ensure that the molten plastic can be effectively extruded in the stent extrusion channel 2330 and filled into the stent forming cavity 2340, and then an extruded stent with stable structure is formed.

[0045] It can be understood that the flow cross-sectional area of the wire sleeve extrusion channel 2230 is greater than or equal to the flow cross-sectional area of the wire sleeve forming cavity 2240, which can further improve the firmness of the wire sleeve structure obtained by extrusion molding. The flow cross-sectional area of the bracket extrusion channel 2330 is greater than or equal to the flow cross-sectional area of the bracket forming cavity 2340, which can further improve the firmness of the bracket structure obtained by extrusion molding.

[0046] It can be understood that the bracket extruder 1200 includes a bracket extrusion barrel 1210, a bracket screw 1220, a driven gear 1230, a driving gear 1240, and a bracket motor 1250. The bracket screw 1220 is arranged inside the bracket extrusion barrel 1210. The driven gear 1230 is connected to one end of the bracket screw 1220 through a bracket rotating shaft. The driven gear 1230 is located outside the bracket extrusion barrel 1210. The axis of the driven gear 1230 is collinear with the axis of the bracket screw 1220. The driving gear 1240 is connected to the output end of the bracket motor 1250. The driving gear 1240 is located on one side of the driven gear 1230. The driving gear 1240 is used for periodic meshing connection with the driven gear 1230. The driving gear 1240 is a sector gear. The driving gear 1240 forms a meshing and separation structural relationship with the driven gear 1230 at different time periods in the same cycle. The driving gear 1240 drives the driven gear 1230 to rotate within a specified time period in the same cycle.

[0047] When the bracket extruder 1200 works, the bracket motor 1250 drives the bracket screw 1220 to rotate inside the bracket extrusion barrel 1210 through the driving gear 1240 and the driven gear 1230, so as to extrude the molten material from the outlet of the bracket extrusion barrel 1210. During the linkage process of the driving gear 1240 and the driven gear 1230, since the driving gear 1240 is a sector gear, the bracket screw 1220 will be driven to rotate only when the tooth part of the driving gear 1240 meshes with the driven gear 1230. When the bracket motor 1250 works continuously, the bracket screw 1220 can be made to rotate intermittently, so as to achieve the effect of segmented extrusion of the bracket. Cooperating with the segmented component 3000, a reliable segmented output effect of the bracket can be achieved. The specific time period is designed according to the actual application scenario. The outlet of the bracket extrusion barrel 1210 is connected to one end of the bracket injection channel 2310 far from the bracket filling cavity 2320.

[0048] It can be understood that the sheath extruder 1100 includes a sheath extrusion barrel 1110, a sheath screw 1120, and a sheath motor 1130. The sheath screw 1120 is disposed within the sheath extrusion barrel 1110. The sheath screw 1120 is connected to the output end of the sheath motor 1130 through a sheath rotating shaft. The sheath motor 1130 is configured to drive the sheath screw 1120 to rotate within the sheath extrusion barrel 1110, so as to extrude the molten material from the outlet of the sheath extrusion barrel 1110. The outlet of the sheath extrusion barrel 1110 is connected to one end of the sheath injection channel 2210 that is away from the sheath filling cavity 2220.

[0049] It can be understood that both the sheath extruder 1100 and the bracket extruder 1200 are located on the same side of the forming head 2000, which can effectively save space and facilitate the layout design of the workshop.

[0050] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A two-color extrusion device for a cable with a bracket, characterized in that, Comprising: An extrusion assembly, including a wire sheath extruder (1100) and a bracket extruder (1200); A forming head (2000), provided with a wire threading channel (2100), a wire sheath extrusion channel (2200) and a bracket extrusion channel (2300). The wire threading channel (2100) is used for threading a wire core. The wire sheath extrusion channel (2200) includes a wire sheath injection channel (2210), and a wire sheath filling cavity (2220), a wire sheath extrusion channel (2230), a wire sheath forming cavity (2240), and a wire sheath coating cavity (2250) that are sequentially connected along the advancing direction of the wire core. One side of the wire sheath filling cavity (2220) is connected to the wire sheath injection channel (2210). The end of the wire sheath injection channel (2210) far from the wire sheath filling cavity (2220) is connected to the wire sheath extruder (1100). The wire sheath forming cavity (2240) is annular and surrounds the outside of the wire threading channel (2100). The wire sheath coating cavity (2250) is annular and surrounds the outside of one end of the wire threading channel (2100). The wire sheath coating cavity (2250) communicates with the wire threading channel (2100). The bracket extrusion channel (2300) includes a bracket injection channel (2310), and a bracket filling cavity (2320), a bracket extrusion channel (2330), and a bracket forming cavity (2340) that are sequentially connected along the advancing direction of the wire core. One side of the bracket filling cavity (2320) is connected to the bracket injection channel (2310). The end of the bracket injection channel (2310) far from the bracket filling cavity (2320) is connected to the bracket extruder (1200). The bracket forming cavity (2340) surrounds the outside of the wire sheath coating cavity (2250). The bracket forming cavity (2340) communicates with the wire sheath coating cavity (2250); A segmentation assembly (3000), including two segmentation driving mechanisms (3100) and two segmentation pressing plates (3200). Both of the two segmentation pressing plates (3200) are located at the end of the bracket forming cavity (2340) far from the bracket extrusion channel (2330). A wire sheath relief groove (3210) matching the wire sheath coating cavity (2250) is provided on one side of each segmentation pressing plate (3200). The two wire sheath relief grooves (3210) are located on opposite sides of the axis of the wire threading channel (2100). Each segmentation pressing plate (3200) is respectively connected to the corresponding segmentation driving mechanism (3100). The segmentation driving mechanism (3100) is used to drive the segmentation pressing plate (3200) to move relative to the axis of the wire threading channel (2100).

2. The two-color extrusion device for a cable with a bracket according to claim 1, characterized in that, The stent forming cavity (2340) includes an annular cavity (2341) and a plurality of arm cavities (2342). The two ends of each arm cavity (2342) are respectively connected to the annular cavity (2341) and the wire sleeve covering cavity (2250). The arm cavities (2342) are equally spaced around the wire sleeve covering cavity (2250). The wire sleeve relief groove (3210) is semicircular, and the radius of the wire sleeve relief groove (3210) is equal to the radius of the wire sleeve covering cavity (2250).

3. The two-color extrusion device for a cable with a bracket according to claim 2, characterized in that, The stent extrusion channel (2330) includes an annular channel (2331) and a plurality of arm channels (2332). The two ends of the annular channel (2331) are respectively connected to the stent filling cavity (2320) and the annular cavity (2341). The opposite ends of each arm channel (2332) are respectively connected to the stent filling cavity (2320) and the corresponding arm cavity (2342).

4. A two-color extrusion device for a cable with a bracket, characterized in that, The flow cross-sectional area of the wire sleeve extrusion channel (2230) is smaller than the flow cross-sectional area of the wire sleeve filling cavity (2220), and the flow cross-sectional area of the stent extrusion channel (2330) is smaller than the flow cross-sectional area of the stent filling cavity (2320).

5. The two-color extrusion device for a cable with a bracket according to claim 4, characterized in that, The flow cross-sectional area of the wire sleeve extrusion channel (2230) is greater than or equal to the flow cross-sectional area of the wire sleeve forming cavity (2240), and the flow cross-sectional area of the stent extrusion channel (2330) is greater than or equal to the flow cross-sectional area of the stent forming cavity (2340).

6. The two-color extrusion device for a cable with a bracket according to claim 1, wherein, The stent extruder (1200) includes a stent extrusion barrel (1210), a stent screw (1220), a driven gear (1230), a driving gear (1240), and a stent motor (1250). The stent screw (1220) is disposed inside the stent extrusion barrel (1210). The driven gear (1230) is connected to one end of the stent screw (1220). The driven gear (1230) is located outside the stent extrusion barrel (1210). The driving gear (1240) is connected to the stent motor (1250). The driving gear (1240) is meshed with the driven gear (1230). The driving gear (1240) is a sector gear. The outlet of the stent extrusion barrel (1210) is connected to the stent injection channel (2310).

7. The two-color extrusion device for a cable with a bracket according to claim 6, wherein, The wire sleeve extruder (1100) includes a wire sleeve extrusion barrel (1110), a wire sleeve screw (1120), and a wire sleeve motor (1130). The wire sleeve screw (1120) is disposed inside the wire sleeve extrusion barrel (1110). The wire sleeve screw (1120) is connected to the wire sleeve motor (1130). The outlet of the wire sleeve extrusion barrel (1110) is connected to the wire sleeve injection channel (2210).

8. The two-color extrusion device for a cable with a bracket according to claim 1, characterized in that, The wire sleeve extruder (1100) and the stent extruder (1200) are both located on the same side of the forming head (2000).

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