Composite photoelectric wire and cable production equipment and composite photoelectric cable

Abstract

The present invention discloses a composite optoelectronic wire and cable production equipment and a composite optoelectronic cable, and relates to the technical field of composite optoelectronic cables. It comprises a steel wire reinforcement core, and four optical fibers distributed in a matrix are arranged on the outside of the steel wire reinforcement core, and the outer side of the optical fiber is coated with a loose tube, and a water-blocking paste is filled between the four optical fibers, and the outer side of the water-blocking paste is coated with a steel-plastic composite tape; a power cord is arranged on the opposite side of the optical fiber, and the power cord is coated in a flame-retardant PVC layer. The present invention is provided with connecting belts on both sides of the middle connecting belt, and a cavity is formed between the side connecting belt and the middle connecting belt. The side connecting belt can stably support the middle connecting belt, thereby preventing the power cord from being repeatedly stressed and causing the middle connecting belt to break. In addition, the heat generated by the optical fiber can enter the cavity and contact with the surface of the side connecting belt, which can not only prevent the connection part of the middle rubber sleeve and the side rubber sleeve from being stressed and broken, but also increase the heat dissipation area, thereby improving the heat dissipation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of composite photoelectric cables, and in particular to composite photoelectric wire and cable production equipment and a composite photoelectric cable. Background Art

[0002] Composite photoelectric cable is a composite communication cable that integrates optical fiber and cable. It combines the advantages of optical fiber communication and cable communication, transmits optical signals and electrical signals in the same cable, and has high transmission efficiency and reliability.

[0003] After searching, the invention patent, application publication number CN106537207A discloses a cable connection for installing multiple communication connections in a distribution network by connecting a series of distribution points using a multi-core cable including multiple cores having a common housing;

[0004] In addition, the invention patent, application publication number CN113470882A discloses an optoelectronic composite communication cable and manufacturing mold, in which the optical cable unit is arranged outside the electrical cable unit, and multiple optical fiber cores are evenly distributed, and then the optical cable unit and the electrical cable unit are covered together by an outer sheath to form multiple protruding arc-shaped portions outside the optical cable unit. In this way, when the optical fiber core is separated from the cable as a whole, it will not cause damage to other optical cable cores or cable units, which is convenient for independent use.

[0005] The cable structure, glue injection equipment disclosed in the above scheme and the existing optoelectronic cables and equipment still have at least the following defects in application:

[0006] The connection between the middle rubber sleeve and the side rubber sleeve may break due to fatigue stress;

[0007] The existing cable structure has low pressure resistance and heat dissipation performance, which can easily cause fiber breakage and degradation of optical performance;

[0008] It is inconvenient to clean the surface of the mold cavity of the cable production equipment or spray the anti-sticking agent, which affects the use of the equipment. Summary of the invention

[0009] The object of the present invention is to provide a composite optoelectronic wire and cable production device and a composite optoelectronic cable to solve the problems raised in the above background technology.

[0010] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a composite optoelectronic wire and cable production equipment and a composite optoelectronic cable, comprising a steel wire reinforcement core, four optical fibers distributed in a matrix are arranged on the outside of the steel wire reinforcement core, the outer side of the optical fiber is coated with a loose tube, a water-blocking paste is filled between the four optical fibers, and the outer side of the water-blocking paste is coated with a steel-plastic composite tape;

[0011] A power cord is provided on the opposite side of the optical fiber, and the power cord is coated in a flame-retardant PVC layer;

[0012] A middle rubber sleeve and a side rubber sleeve are respectively arranged on the outer sides of the steel-plastic composite belt and the flame-retardant PVC layer, two side connecting belts and a middle connecting belt are connected between the middle rubber sleeve and the side rubber sleeve, and the middle connecting belt is located between the two side connecting belts;

[0013] The middle rubber sleeve, the side rubber sleeve, the side connecting belt and the middle connecting belt are extruded at one time;

[0014] A fan-shaped groove with an arc surface facing the steel-plastic composite belt is provided on the water-blocking paste between two adjacent optical fibers. A fan-shaped thermal conductive rubber block is arranged in the fan-shaped groove. A deformation cavity is formed between the two sides of the fan-shaped thermal conductive rubber block and the two side walls of the fan-shaped groove.

[0015] Furthermore, a buffer cavity is provided on the outer side of the water blocking paste, and the buffer cavity is located on the outer side of the arc surface of the fan-shaped heat conductive adhesive block.

[0016] A composite optoelectronic wire and cable production equipment, used for producing the composite optoelectronic cable, comprising a support plate, a stand, a mold sleeve and a glue injection head, wherein a glue injection hole is provided on the glue injection head, a first cable inlet hole is provided in the middle of one side of the glue injection head, and four second cable inlet holes are provided outside the first cable inlet hole, wherein the mold sleeve comprises four mold cores, and two small arc surfaces and one large arc surface are formed on the side surface of the mold core, and after the four mold cores are attached together, a central hole and four side holes are formed, and the four side holes are evenly distributed outside the central hole, and a central glue inlet groove is formed between the side holes and the central hole;

[0017] Two connectors are arranged on the glue inlet side of the mold core, and a baffle with an arc-shaped side is formed on the side of the connector, and a side glue inlet groove connected to the side hole is formed between the baffle and the mold core;

[0018] The central hole and the side hole coincide with the central axes of the first cable entry hole and the second cable entry hole respectively;

[0019] Four driving parts are arranged on the outside of the mold sleeve, and the driving parts drive the four mold cores to close and separate the molds;

[0020] A side plate is fixed on the mold core on the side opposite to the injection head, and the four side plates are combined to form a rubber inlet sleeve. A rubber injection sleeve is fixed on the side opposite to the mold core, and the rubber inlet sleeve and the rubber injection sleeve are adapted to each other.

[0021] A guide mechanism is arranged at the bottom of the glue injection head, and the guide mechanism guides the glue injection head so that the glue injection head moves horizontally along the central axis of the central hole.

[0022] Furthermore, the guide mechanism comprises a fixing frame, a plurality of guide blocks are fixed on the top of the fixing frame, a plurality of guide grooves are formed on the bottom of the injection head, and the guide grooves are matched with the guide blocks.

[0023] Furthermore, a push plate is fixed to the bottom end of the glue injection head, a second hydraulic cylinder is fixed to the top of the fixing frame, and the telescopic end of the second hydraulic cylinder is fixed to the push plate.

[0024] Furthermore, a baffle is fixed on the top of the support plate, a pressure plate is arranged between the push plate and the baffle, a plurality of plug shafts are fixed on the side of the pressure plate, the plug shafts are movably plugged with the push plate, and a plurality of springs are fixed between the pressure plate and the push plate;

[0025] A pressure sensor is fixed on one side of the baffle plate opposite to the pressure plate, and when the pressure plate moves to the left, an extrusion force is generated on the pressure sensor.

[0026] Furthermore, a step surface is formed on the outer side of the side plate, an elastic pad is fixed on the side of the step surface, an extrusion surface is formed on the inner side of the rubber injection sleeve, and the step surface is matched with the extrusion surface.

[0027] Furthermore, the driving member comprises a U-shaped plate, a guide plate is movably inserted into the groove of the U-shaped plate, and the angle formed by the guide plate and the central axis of the central hole is 30-60°;

[0028] A plurality of first hydraulic cylinders are fixed on the U-shaped plate body, and the telescopic ends of the first hydraulic cylinders are fixed to the mold core;

[0029] A plurality of limit blocks are fixed on the side of the guide plate, and a limit groove is arranged on the inner side of the U-shaped plate, and the limit groove is matched with the limit block.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The composite photoelectric cable is provided with connecting belts on both sides of the middle connecting belt, and a cavity is formed between the side connecting belt and the middle connecting belt. The side connecting belt can stably support the middle connecting belt, thereby preventing the middle connecting belt from being broken due to repeated stress on the power line. In addition, the heat generated by the optical fiber can enter the cavity and contact with the surface of the side connecting belt, which can not only prevent the connection part of the middle rubber sleeve and the side rubber sleeve from being broken due to stress, but also increase the heat dissipation area and improve the heat dissipation effect.

[0032] At the same time, the power cord and the side rubber sleeve are arranged on the opposite side of the optical fiber, which can improve the vertical and horizontal strength of the cable, thereby effectively protecting the optical fiber arranged in the middle of the cable;

[0033] In addition, a fan-shaped groove with an arc surface facing the steel-plastic composite belt is provided on the water-blocking paste between two adjacent optical fibers, and a fan-shaped thermal conductive adhesive block is arranged in the fan-shaped groove. When the water-blocking paste between the two optical fibers is subjected to force, the fan-shaped thermal conductive adhesive block will bend and deform to both sides, and the deformation is located in the deformation cavity, so that the two side walls of the fan-shaped groove will not be squeezed, so that the side force of the optical fiber is small, and the fan-shaped thermal conductive adhesive block can buffer the squeezing force, so that the optical fiber is further protected;

[0034] In addition, when the optical fiber is working, it will generate heat, which will cause the loose tube to expand outward. The lateral expansion force will squeeze the water-blocking paste on the side of the fan-shaped cavity. The squeezed water-blocking paste is in contact with the two side surfaces of the fan-shaped thermal conductive adhesive block. The heat is transferred to the fan-shaped thermal conductive adhesive block and then transferred to the water-blocking paste through its curved surface, finally achieving rapid heat dissipation.

[0035] The cable production equipment is provided with four mold cores. The first hydraulic cylinder can synchronously move the four mold cores to achieve the separation of the mold cores. Compared with the integrated mold core design in the prior art, the equipment is convenient for surface cleaning or anti-sticking agent spraying on the mold cavity of the cable production equipment, thereby improving the practicality of the device.

[0036] Furthermore, a guide mechanism and a pressure sensor are provided at the bottom of the injection head. The height of the guide mechanism is pre-adjusted to ensure that the eccentricity of the steel-plastic composite belt and the flame-retardant PVC layer meets the requirements. Compared with the existing cylindrical mold, an additional adjustment mechanism is required. The device can improve the installation efficiency through pre-eccentricity adjustment and avoid the production of defective products due to the displacement of the steel-plastic composite belt and the flame-retardant PVC layer during the injection molding process. At the same time, the setting of the pressure sensor can monitor the installation pressure between the rubber feed sleeve and the rubber injection sleeve to prevent the rubber feed sleeve and the rubber injection sleeve from being damaged due to excessive force on the rubber injection head when the rubber feed sleeve and the rubber injection sleeve are connected, and at the same time, the degree of automation of the device is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a left front axial view of the electric wire and cable production equipment of the present invention;

[0038] Figure 2 It is a left rear axial view of the electric wire and cable production equipment of the present invention;

[0039] Figure 3 A half-section diagram of the electric wire and cable production equipment of the present invention;

[0040] Figure 4 It is a detailed view of the glue feeding side of the mold sleeve in the wire and cable production equipment of the present invention;

[0041] Figure 5 It is a front view of the electric wire and cable production equipment of the present invention;

[0042] Figure 6 It is an exploded view of the mold sleeve and the glue injection head in the wire and cable production equipment of the present invention;

[0043] Figure 7 It is a front view of the composite optoelectronic cable of the present invention;

[0044] Figure 8 for Figure 7 The force annotation diagram after the enlargement of part B.

[0045] In the figure: 1. mold core; 101. side hole; 102. center hole; 103. connector; 104. stopper; 105. side glue inlet groove; 106. middle glue inlet groove; 2. glue injection head; 201. glue injection hole; 202. first cable inlet hole; 301. side plate; 302. glue injection sleeve; 303. elastic pad; 4. stand; 5. U-shaped plate; 6. guide plate; 601. limit block; 7. first hydraulic cylinder; 8. guide mechanism; 801. fixed frame; 802. guide block; 803, second hydraulic cylinder; 804, push plate; 805, baffle; 806, plug shaft; 807, pressure plate; 9, steel-plastic composite belt; 10, steel wire reinforcement core; 111, loose tube; 112, optical fiber; 113, fiber paste; 121, flame-retardant PVC layer; 122, power cord; 13, water-blocking paste; 131, buffer cavity; 14, fan-shaped thermal conductive rubber block; 141, deformation cavity; 15, middle rubber sleeve; 16, side rubber sleeve; 17, middle connecting belt; 18, side connecting belt. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] like Figure 7-Figure 8 As shown, the present invention provides a technical solution: a composite optoelectronic cable, which can simultaneously transmit electric energy and communicate, specifically, comprises a steel wire reinforcement core 10, four optical fibers 112 distributed in a matrix are arranged on the outside of the steel wire reinforcement core 10, the optical fiber 112 is composed of a plurality of optical fiber cores, and fiber paste 113 is filled between the optical fiber cores, and a loose tube 111 made of corrosion-resistant and high-temperature resistant polyethylene (or polypropylene) material is coated on the outside of the optical fiber 112, and a water-blocking paste 13 made of a mixture of acrylic resin material and metal powder is filled between the four optical fibers 112 to ensure that the water-blocking paste 13 has good elasticity, sealing and heat dissipation, and a steel-plastic composite tape 9 is coated on the outside of the water-blocking paste 13. It can be known that the positions of the four optical fibers 112 in the steel-plastic composite tape 9 can be fixed by filling and coating with the above materials, and a power line 122 is arranged on the opposite side of the optical fiber 112, and the power line 122 is coated in a flame-retardant PVC layer 121;

[0048] Since the optical fiber core is generally made of glass fiber, it is very small and relatively fragile, and is easily damaged by force. If the wire is broken, it will be very difficult to repair. However, the wire in the power cord 122 is generally thicker and has better mechanical properties. Even if the wire is broken, it is easy to repair. Therefore, in this solution, we set the optical fiber 112 on the inside and the power cord 122 on the outside, so as to achieve the purpose of the power cord 122 protecting the optical fiber 112.

[0049] like Figure 7 As shown, a middle rubber sleeve 15 and a side rubber sleeve 16 are respectively provided on the outside of the steel-plastic composite belt 9 and the flame-retardant PVC layer 121, and two side connecting belts 18 and a middle connecting belt 17 are connected between the middle rubber sleeve 15 and the side rubber sleeve 16. The middle connecting belt 17 is located between the two side connecting belts 18. It should be noted that the middle rubber sleeve 15, the side rubber sleeve 16, the side connecting belt 18 and the middle connecting belt 17 are extruded at one time by the wire and cable production equipment.

[0050] In the prior art, the middle rubber sleeve 15 and the side rubber sleeves 16 are connected by a middle connecting belt 17. Thus, during the installation or use of the cable, the power cord 122 may be subjected to torsion on the left and right sides, causing fatigue stress on the middle connecting belt 17. Long-term stress may cause the middle connecting belt 17 to break. In actual production, the above defects are overcome by increasing the thickness of the middle connecting belt 17. However, this will increase the contact area between the middle connecting belt 17 and the middle rubber sleeve 15 and the side rubber sleeve 16, reducing the heat dissipation effect of the optical fiber 112.

[0051] In this solution, the middle rubber sleeve 15 and the side rubber sleeve 16 are connected by two side connecting belts 18 and a middle connecting belt 17, and the middle connecting belt 17 is located between the two side connecting belts 18, and a cavity is formed between the side connecting belts 18 and the middle connecting belt 17. In this way, the side connecting belts 18 can stably support the middle connecting belt 17, thereby preventing the power cord 122 from breaking due to repeated force. In addition, the heat generated by the optical fiber 112 can enter the cavity and contact the surface of the side connecting belt 18, thereby increasing the heat dissipation area and improving the heat dissipation effect.

[0052] Therefore, the composite cable in this solution can effectively improve its own mechanical properties without affecting its own heat dissipation.

[0053] In addition, it should be noted that, in order to facilitate use and reduce manufacturing costs, it is necessary to reduce the overall size of the composite cable. In this way, the thickness of the water-blocking paste 13 filled between the optical fiber 112 and the steel-plastic composite tape 9 is relatively small. Figure 7As shown, when the cable is bent horizontally or vertically, the optical fiber 112 is easily damaged by force. In this solution, the power cord 122 and the side rubber sleeve 16 are arranged on the opposite sides of the optical fiber 112. This can improve the vertical and horizontal strength of the cable, thereby effectively protecting the optical fiber 112 arranged in the middle of the cable.

[0054] like Figure 7 and Figure 8 As shown, a fan-shaped groove with an arc surface facing the steel-plastic composite belt 9 is provided on the water-blocking paste 13 between two adjacent optical fibers 112, and a fan-shaped thermal conductive rubber block 14 is arranged in the fan-shaped groove. As a preferred embodiment, the arc center side of the fan-shaped thermal conductive rubber block 14 is fixed to the side wall at the arc center of the fan-shaped groove, and the arc surface of the fan-shaped thermal conductive rubber block 14 is fitted with the arc surface side wall of the fan-shaped groove, thereby ensuring the stability between the fan-shaped thermal conductive rubber block 14 and the water-blocking paste 13, and a buffer cavity 131 is provided on the outside of the water-blocking paste 13, and the buffer cavity 131 is located on the outside of the arc surface of the fan-shaped thermal conductive rubber block 14, which is used to initially buffer the pressure.

[0055] Among them, the fan-shaped thermal conductive rubber block 14 can be made of a mixture of silicone and metal powder or other existing manufacturing technologies, so that the fan-shaped thermal conductive rubber block 14 has excellent thermal conductivity while increasing its elasticity. In addition, a deformation cavity 141 is formed between the two sides of the fan-shaped thermal conductive rubber block 14 and the two side walls of the fan-shaped groove.

[0056] The above has explained the reasons why the transverse and longitudinal compression (bending) performance of the composite cable has been enhanced. Now, the stress process of the middle rubber sleeve 15 between the two power lines 122 is explained:

[0057] like Figure 8 As shown, during installation, when an external force F is applied to the middle rubber sleeve 15 between the two power lines 122, the force F is decomposed into vertical and lateral forces f at the arc surface of the fan-shaped thermally conductive rubber block 14. After the lateral force f is applied to both sides of the fan-shaped thermally conductive rubber block 14, the fan-shaped thermally conductive rubber block 14 will bend and deform to both sides, and the deformation is located in the deformation cavity 141, so that the two side walls of the fan-shaped groove will not be squeezed, so that the side force of the optical fiber 112 is relatively small. In summary, the fan-shaped thermally conductive rubber block 14 can buffer the squeezing force and protect the optical fiber 112.

[0058] It should also be added that if Figure 8As shown, the optical fiber 112 generates heat when working, and the loose tube 111 expands outward after being heated. Since the vertical sides of the loose tube 111 are blocked by the steel-plastic composite belt 9 and the steel wire reinforcement core 10 respectively, the expansion amount on the lateral sides is greater than the expansion amount on the vertical side (the loose tube 111 is similar to an elliptical shape after expansion), and the lateral expansion force C squeezes the water-blocking paste 13 on the side of the fan-shaped cavity. The squeezed water-blocking paste 13 contacts the two side surfaces of the fan-shaped heat-conducting rubber block 14. The heat is conducted to the fan-shaped heat-conducting rubber block 14 and then conducted to the water-blocking paste 13 through its arc surface, and finally rapid heat dissipation is achieved.

[0059] Composite optoelectronic wire and cable production equipment is used to produce composite optoelectronic cables, including a support plate, a stand 4, a mold sleeve and a glue injection head 2, a glue injection hole 201 is opened on the glue injection head 2, a first cable entry hole 202 for the steel-plastic composite tape 9 to pass through is opened in the middle of one side of the glue injection head 2, and four second cable entry holes for the flame-retardant PVC layer 121 to pass through are arranged on the outside of the first cable entry hole 202.

[0060] like Figure 1 As shown, the mold sleeve includes four mold cores 1, and two small arc surfaces and one large arc surface are formed on the side of the mold core 1. When the four mold cores 1 are fitted together (mold closed), a central hole 102 and four side holes 101 are formed. In order to adapt to the above-mentioned composite cable, the four side holes 101 are evenly distributed on the outside of the central hole 102, and a middle glue inlet groove 106 is formed between the side hole 101 and the central hole 102.

[0061] like Figure 4 As shown, two connectors 103 are provided on the glue inlet side of the mold core 1, and a blocking rod 104 with an arc-shaped side is formed on the side of the connector 103, and a side glue inlet groove 105 connected to the side hole 101 is formed between the blocking rod 104 and the mold core 1. To ensure that the cable eccentricity meets the requirements, the center hole 102 and the side hole 101 coincide with the central axis of the first cable inlet hole 202 and the second cable inlet hole respectively.

[0062] Four driving members are arranged on the outside of the mold sleeve. It can be known that the driving members drive the four mold cores 1 to close and separate the molds. Figure 2 As shown, the driving member includes a U-shaped plate 5, and a guide plate 6 is movably inserted in the groove of the U-shaped plate 5. The angle formed by the guide plate 6 and the central axis of the center hole 102 is 30-60°. In this solution, in order to achieve equal separation distances of the four mold cores 1 after mold separation, it is convenient for the staff to clean the two small arc surfaces and one large arc surface formed on the side of the mold core 1, and the angle formed by the guide plate 6 and the central axis of the center hole 102 is preferably 45°;

[0063] In addition, at least two first hydraulic cylinders 7 are fixed on the U-shaped plate 5, and the telescopic end of the first hydraulic cylinder 7 is detachably fixed to the mold core 1, so as to facilitate the replacement of different types of mold cores 1. Of course, the first hydraulic cylinder 7 can be replaced by other power elements, such as lifting the guide plate 6 by a motor and a screw rod. A number of limit blocks 601 are fixed on the side of the guide plate 6, and a limit groove is opened on the inner side of the U-shaped plate 5, and the limit groove is adapted to the limit block 601. The setting of the limit block 601 can not only ensure the stability of the mold core 1, but also reduce the force damage to the first hydraulic cylinder 7 caused by the thrust of the injection head 2 on the mold sleeve, thereby improving the service life of the first hydraulic cylinder 7.

[0064] like Figure 6 As shown, a side plate 301 is fixed to the side of the mold core 1 relative to the glue injection head 2, and the four side plates 301 are combined to form a glue inlet sleeve, and a glue injection sleeve 302 is fixed to the side of the glue injection head 2 relative to the mold core 1, and the glue inlet sleeve and the glue injection sleeve 302 are matched. In a specific embodiment of the present scheme, in order to improve the connection stability between the glue inlet sleeve and the glue injection sleeve 302, a step surface is formed on the outer side of the side plate 301, and an elastic pad 303 is fixed to the side of the step surface, an extrusion surface is formed on the inner side of the glue injection sleeve 302, and the step surface is matched with the extrusion surface. When the glue inlet sleeve and the glue injection sleeve 302 are matched, the elastic pad 303 is deformed by force.

[0065] like Figure 6 As shown, a guide mechanism 8 is provided at the bottom of the glue injection head 2, which guides the glue injection head 2 so that it moves horizontally along the central axis of the central hole 102, and the central hole 102 and the side hole 101 coincide with the central axes of the first cable inlet hole 202 and the second cable inlet hole respectively.

[0066] like Figure 5 and Figure 6 As shown, the guide mechanism 8 includes a fixed frame 801, and a plurality of guide blocks 802 are fixed on the top of the fixed frame 801. A plurality of guide grooves are opened at the bottom end of the injection head 2, and the guide grooves are adapted to the guide blocks 802. The guide blocks 802 can be selected from dovetail blocks or center-shaped blocks, and the guide grooves are selected from dovetail grooves and center-shaped grooves adapted to the dovetail blocks or center-shaped blocks.

[0067] The height of the guide mechanism 8 is pre-adjusted to ensure that the eccentricity of the steel-plastic composite belt 9 and the flame-retardant PVC layer 121 meets the requirements. Compared with the existing cylindrical mold, the device can improve the installation efficiency by pre-adjusting the eccentricity, and avoid the production of defective products due to the displacement of the steel-plastic composite belt 9 and the flame-retardant PVC layer 121 during the injection molding process.

[0068] In addition, a push plate 804 is fixed at the bottom end of the glue injection head 2, a second hydraulic cylinder 803 is fixed at the top of the fixed frame 801, and the telescopic end of the second hydraulic cylinder 803 is fixed to the push plate 804. The glue injection head 2 is driven by the second hydraulic cylinder 803 to move and connect the glue feeding sleeve and the glue injection sleeve 302.

[0069] In order to improve the degree of automation of the device, a baffle 805 is fixed on the top of the support plate, a pressure plate 807 is arranged between the push plate 804 and the baffle 805, at least one plug shaft 806 is fixed on the side of the pressure plate 807, and the plug shaft 806 is movably connected with the push plate 804, and a number of springs equal to the plug shaft 806 are fixed between the pressure plate 807 and the push plate 804. In order to prevent the rubber feed sleeve and the rubber injection sleeve 302 from being damaged due to excessive force on the rubber injection head 2 when they are docked, a pressure sensor is fixed on the side of the baffle 805 facing the pressure plate 807. The pressure sensor is electrically connected to the controller. When the pressure plate 807 moves to the left, it generates an extrusion pressure on the pressure sensor. When the extrusion pressure reaches the set value, the controller controls the second hydraulic cylinder 803 to stop working.

[0070] Supplement to the cable production equipment in this solution:

[0071] During installation, the height of the guide mechanism 8 is first adjusted so that the center hole 102 and the side hole 101 coincide with the central axis of the first cable inlet hole 202 and the second cable inlet hole, respectively. The controller controls the first hydraulic cylinder 7 to start. When the first hydraulic cylinder 7 is extended, the push plate 804 drives the injection head 2 to move to the left. When the pressure plate 807 moves to the left, an extrusion force is generated on the pressure sensor. At this time, the spring contracts, thereby preventing the pressure sensor from being damaged due to rigid contact between the pressure plate 807 and the pressure sensor. When the extrusion force reaches the set value, the controller controls the second hydraulic cylinder 803 to stop working, completing the connection between the mold sleeve and the injection head 2.

[0072] When injecting glue, the steel-plastic composite tape 9 is passed through the first cable inlet hole 202 and the center hole 102, and the four flame-retardant PVC layers 121 are passed through the second cable inlet hole and the side hole 101 in turn. Glue is injected into the glue injection head 2 through the glue injection hole 201. The glue fluid enters the first cable inlet hole 202 and the second cable inlet hole through the glue injection sleeve 302 and the glue inlet sleeve, and moves forward under the extrusion force, filling between the steel-plastic composite tape 9 and the side wall of the center hole 102 and between the flame-retardant PVC layer 121 and the side wall of the side hole 101. Since the temperature of the glue inlet side of the mold core 1 is relatively high, the glue is still in a molten state at this time, so the connector 103 will not interfere with the movement of the cable. After the molten glue is solidified on the outlet side of the mold core 1, the wire is discharged along the winding reel, and finally formed. Figure 7 Cable shape in

[0073] When the surface of the mold cavity of the center hole 102 and the side hole 101 is cleaned or anti-sticking agent is sprayed, the controller controls the four first hydraulic cylinders 7 to start. When the first hydraulic cylinders 7 contract, they drive the guide plate 6 to move away from the center hole 102. When the distance between adjacent mold cores 1 reaches the set value, the controller controls the first hydraulic cylinders 7 to stop working.

[0074] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A composite optoelectronic wire and cable production device, comprising a support plate, a stand (4), a mold sleeve and a glue injection head (2), wherein the glue injection head (2) is provided with a glue injection hole (201), a first cable entry hole (202) for passing a steel-plastic composite tape (9) is provided in the middle of one side of the glue injection head (2), and four second cable entry holes for passing a flame-retardant PVC layer (121) are provided outside the first cable entry hole (202), characterized in that: The mold sleeve comprises four mold cores (1), and the mold cores (1) are formed with two small arc surfaces and one large arc surface on their sides. When the four mold cores (1) are bonded together, a central hole (102) for producing a central rubber sleeve (15) and four side holes (101) for producing side rubber sleeves (16) are formed. The four side holes (101) are evenly distributed on the outside of the central hole (102), and a central glue inlet groove (106) for producing a central connecting belt (17) is formed between the side holes (101) and the central hole (102); Two connectors (103) are provided on the glue inlet side of the mold core (1), and a blocking rod (104) with an arc-shaped side is formed on the side of the connector (103). A side glue inlet groove (105) connected to the side hole (101) and used for producing the side connecting belt (18) is formed between the blocking rod (104) and the mold core (1); The central hole (102) and the side hole (101) coincide with the central axes of the first cable entry hole (202) and the second cable entry hole respectively; Four driving members are arranged on the outer side of the mold sleeve, and the driving members drive four mold cores (1) to close and separate the molds; A side plate (301) is fixed to the mold core (1) on the side opposite to the glue injection head (2), and the four side plates (301) are put together to form a glue inlet sleeve. A glue injection sleeve (302) is fixed to the side opposite to the mold core (1), and the glue inlet sleeve and the glue injection sleeve (302) are matched. A guide mechanism (8) is provided at the bottom of the glue injection head (2), and the guide mechanism (8) guides the glue injection head (2) so that it moves horizontally along the central axis of the central hole (102), so as to ensure that the eccentricity of the steel-plastic composite strip (9) and the flame-retardant PVC layer (121) meets the requirements.

2. The composite optoelectronic wire and cable production equipment according to claim 1, characterized in that: The guide mechanism (8) comprises a fixing frame (801), a plurality of guide blocks (802) are fixed on the top end of the fixing frame (801), and a plurality of guide grooves are provided on the bottom end of the injection head (2), and the guide grooves are adapted to the guide blocks (802).

3. The composite optoelectronic wire and cable production equipment according to claim 2, characterized in that: A push plate (804) is fixed to the bottom end of the glue injection head (2), a second hydraulic cylinder (803) is fixed to the top of the fixed frame (801), and a telescopic end of the second hydraulic cylinder (803) is fixed to the push plate (804).

4. The composite optoelectronic wire and cable production equipment according to claim 3, characterized in that: A baffle (805) is fixed to the top of the support plate, a pressure plate (807) is arranged between the push plate (804) and the baffle (805), a plurality of plug shafts (806) are fixed to the side of the pressure plate (807), the plug shafts (806) are movably plugged with the push plate (804), and a plurality of springs are fixed between the pressure plate (807) and the push plate (804); A pressure sensor is fixed on one side of the baffle (805) facing the pressure plate (807), and when the pressure plate (807) moves to the left, a squeezing force is generated on the pressure sensor.

5. The composite optoelectronic wire and cable production equipment according to claim 1, characterized in that: The side plate (301) has a stepped surface formed on its outer side, an elastic pad (303) is fixed to the side of the stepped surface, and an extrusion surface is formed on the inner side of the rubber injection sleeve (302), and the stepped surface is matched with the extrusion surface.

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