Insulating extruded wire blowing set

Abstract

The invention relates to the technical field of cable processing equipment, and particularly discloses an insulated extruded wire blowing set which comprises a base, a stand column and an air source device are arranged on the upper surface of the base, a blowing set mechanism is fixedly connected to the top of the stand column and comprises an annular cylinder and an annular pipe, and the front end of the annular cylinder is open; the rear end of the annular cylinder is concentrically connected with a through cylinder used for a cable to penetrate through, the top end of the stand column is fixedly connected with the through cylinder, the annular cylinder is concentrically sleeved with the annular pipe, the bottom of the annular pipe is connected with an air source device through an air conveying pipe, and the inner ring of the annular pipe is connected with a plurality of communicating branch pipes extending into the annular cylinder in the radial direction in an annular array shape. The radial inner end of each communicating branch pipe is connected with a corrugated telescopic pipe, and the radial inner end of each corrugated telescopic pipe is connected with an air blowing nozzle. According to the invention, the cable after insulation extrusion molding can be effectively cooled uniformly, the cooling device can be suitable for various different working conditions, and the product quality of the cable after insulation extrusion molding is effectively ensured.

Description

Technical Field

[0001] The invention relates to the technical field of cable processing equipment, and particularly discloses an insulating extruded wire blowing suit. Background Art

[0002] Setting up an air ring at the outlet of the extruder of the insulation extrusion line is a very critical and standard process step in the manufacture of wires and cables. Its main purpose is to quickly, evenly and controllably cool and shape the plastic insulation layer that has just been extruded from the extruder die head and is still in a high-temperature molten state.

[0003] However, the current industry practice is to simply install an air blowing nozzle or an air ring connected by an air pipe at the extruder die head to provide unidirectional cooling or circumferentially uniform air blowing. While this approach is simple in structure, it cannot be adjusted adaptively when the diameters of the insulating extruded wire products vary, and the temperatures at the outlet vary or are uneven. This can easily lead to uneven cooling and shaping of the cable's outer insulation layer, which can severely affect product quality. Therefore, this application proposes an air blowing kit for insulating extruded wire that effectively addresses the aforementioned technical issues. Summary of the Invention

[0004] The present invention mainly provides an air blowing suit for an insulating extrusion line, so as to solve the technical problems and shortcomings of the existing insulating extrusion line which adopts a single air nozzle for online air blowing and cooling.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] An insulating extruded wire blowing suit comprises a base, an upper surface of which is provided with a column and an air source device, a top of which is fixedly connected to a blowing suit mechanism, and the blowing suit mechanism comprises an annular cylinder and an annular tube which are concentrically arranged inside and outside. The front end of the annular cylinder is open, and the rear end of the annular cylinder is concentrically connected to a through cylinder.

[0007] The annular tube is connected to the air source device through an air supply pipe, and the inner ring of the annular tube is connected to a plurality of connecting branches in an annular array that radially extend into the interior of the annular cylinder. The radial inner end of each connecting branch is connected to a corrugated telescopic tube, and the inner end of the corrugated telescopic tube is connected to an air blowing nozzle. A limiting slider is fixed to the rear end of the air blowing nozzle, and an adjustment mechanism is provided on the annular cylinder for driving all limiting sliders to move radially.

[0008] As a further arrangement of the above scheme, the adjustment mechanism includes a first annular slide rail concentrically arranged on the rear end face of the annular cylinder, a worm gear disk being rotatably connected to the first annular slide rail, an adjusting worm being rotatably connected to the annular cylinder, radial limit slides that interact with each limit slider being evenly opened circumferentially on the rear end face of the annular cylinder, oblique slide grooves corresponding to each radial limit slide opening being evenly opened circumferentially on the front side face of the worm gear disk, and a convex column that interacts with the oblique slide groove being fixed on the side of the limit slider away from the blowing nozzle.

[0009] As a further arrangement of the above scheme, a second annular slide rail is concentrically fixed on the front end face of the annular cylinder, a gear ring disc is rotatably connected to the second annular slide rail, a plurality of infrared temperature sensors arranged radially toward the center of the circle are evenly fixedly connected to the front side face of the gear ring disc in a circumferential direction, a common wire of the plurality of infrared temperature sensors is connected to a control box arranged on the base, and a flow regulating valve controlled by the control box is provided on each of the connecting branch pipes.

[0010] As a further configuration of the above solution, a rotation adjustment motor controlled by a control box is fixed on the outer circumferential surface of the annular cylinder, and a power gear meshing with the gear ring disk is provided on the motor shaft of the rotation adjustment motor.

[0011] As a further configuration of the above scheme, eight connecting branches are evenly connected on the annular tube, four infrared temperature sensors are evenly arranged on the gear ring plate, and the rotation adjustment motor is a servo motor that can rotate forward and backward and has an adjustable rotation angle.

[0012] As a further configuration of the above solution, both sides of the upper end of the ring cylinder are fixedly connected with rotating brackets, the adjusting worm is rotatably connected between the two rotating brackets, and a screwing portion is provided at one end of the adjusting worm.

[0013] As a further arrangement of the above scheme, the column includes an outer column fixed on the upper surface of the base, a telescopic inner column extending out of the outer column is inserted into the outer column, and a row of sockets arranged at intervals along the height direction are provided on the outer column and the telescopic inner column, and two aligned sockets are inserted with pins for fixing.

[0014] As a further configuration of the above solution, the gas source device is selected from any one of an air pump, a blower or a compressed gas tank.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The insulation extrusion cable blowing set disclosed in the present invention adopts a design of multiple blowing nozzles evenly arranged in a circumferential direction for air outlet, so that the insulation extruded cable can be cooled by airflow from multiple directions. Compared with the traditional method of directly using a blowing nozzle to blow air from a single direction for cooling, it can effectively make the insulation extruded cable cool evenly and improve its air cooling pre-forming speed.

[0017] 2. During operation, the blowing suit mechanism disclosed in the present invention can also rotate the adjusting worm according to the diameter of the insulated extruded cable or the surface temperature after extrusion. Under a series of transmission actions, all the blowing nozzles can be synchronously moved radially inward or outward, thereby adjusting the distance between the blowing nozzle and the insulated extruded cable, changing the speed and effect of the blowing cooling, so that the entire device can be applied to various working conditions and has a wider range of applicability.

[0018] 3. The present invention further arranges an infrared temperature sensor on the front side to detect the uniform temperature of the insulated extruded cable in different circumferential directions in the circumferential direction, and then controls the gas flow rate entering the corresponding blowing nozzle, thereby being able to adapt to the insulated extruded cable with uneven surface temperature, so that after being blown and cooled by the blowing suit mechanism, the surface of the insulated extruded cable is cooled evenly, which greatly reduces the problem of uneven stress of the insulation layer caused by uneven surface temperature, and effectively ensures the quality of the cable product after insulation extrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the back three-dimensional structure of the present invention;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the air blowing suit mechanism from a first angle in the present invention;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the air blowing suit mechanism from a second angle in the present invention;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the worm wheel, adjusting worm, etc. in the present invention;

[0024] Figure 6 For the present invention Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0025] in:

[0026] 1-base, 2-column, 201-outer column, 202-telescopic inner column, 203-socket, 204-latch, 3-blowing set mechanism, 301-ring tube, 3011-radial limit slide, 302-ring tube, 303-through tube, 304-connecting branch pipe, 305-corrugated telescopic pipe, 304-connecting branch pipe, 305-corrugated telescopic pipe, 306-blowing nozzle, 307-limit slider, 308 - boss, 309-first annular slide, 310-worm gear, 3101-oblique slide, 311-adjusting worm, 312-second annular slide, 313-gear ring, 314-infrared temperature sensor, 315-flow control valve, 316-rotational adjustment motor, 317-power gear, 318-rotating bracket, 319-screwing part, 4-air source device, 401-air pipe, 5-control box. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings 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 in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0028] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Figures 1 to 6 , and combines the embodiments to describe in detail the insulation extruded wire blowing suit disclosed in this application.

[0030] Example 1

[0031] Example 1 discloses an insulation extruded wire blowing suit, see attached Figure 1 and attached Figure 2The main part of the insulating extruded wire blowing suit includes a base 1, on the upper surface of which a column 2 and an air source device 4 are provided, and a blowing suit mechanism 3 is fixedly connected to the top of the column 2. In the specific design, the column 2 adopts a telescopic adjustable structure, which includes an outer column 201 fixed to the upper surface of the base 1, a telescopic inner column 202 extending out of the outer column 201 is inserted into the outer column 201, and then a row of sockets 203 spaced apart along the height direction are provided on the outer column 201 and the telescopic inner column 202, and a pin 204 for fixing is inserted into two aligned sockets 203 of the outer column 201 and the telescopic inner column 202, so that after the height adjustment of the telescopic inner column 202 is completed, the pin 204 is inserted into the socket 203 to achieve the fixation of the column 2.

[0032] Reference Attachment Figures 3-4 The air blowing mechanism 3 includes an annular tube 301 and an annular tube 302. The front end of the annular tube 301 is open, and a through tube 303 for passing cables is concentrically connected to the rear end of the annular tube 301. The top of the column 2 is fixedly connected to the through tube 303, so that during the insulation extrusion process, the cables can enter through the front end opening of the annular tube 301 and then be sent out from the annular tube 301. The annular tube 302 is concentrically sleeved around the outer periphery of the annular tube 301, and the bottom of the annular tube 302 is connected to the air source device 4 via an air supply pipe 401. The specific air source device 4 can be any of an air pump, a blower, or a compressed air tank, so that the air source device 4 can continuously supply high-speed cooling air to the annular tube 302.

[0033] Connected to the inner ring of the annular tube 302 are multiple connecting branches 304 extending radially into the interior of the annular cylinder 301 in an annular array. In this embodiment 1, eight connecting branches 304 are provided, evenly spaced around the circumference. Each connecting branch 304 is connected to the radially inner end of a bellows 305. A blow nozzle 306 is then connected to the radially inner end of the bellows 305, with the blow nozzle 306 positioned radially toward the insulation layer of the cable being pulled through. A limit slider 307 is fixedly attached to the rear end of each blow nozzle 306, and a boss 308 is fixed to the side of the limit slider 307 facing away from the blow nozzle 306. A first annular rail 309 is concentrically fixed to the rear end of the annular cylinder 301, located outside the through-tube 303. A worm gear 310 is rotatably connected to the first annular rail 309, and an adjusting worm 311 is rotatably connected to the annular cylinder 301, meshing with the worm gear 310. In the specific design, rotating brackets 318 are fixedly connected to both sides of the upper end of the ring cylinder 301, and then the adjusting worm 311 is rotatably connected between the two rotating brackets 318, and a screwing portion 319 is provided at one end of the adjusting worm 311, so that by rotating the screwing portion 319, the worm gear 310 is rotated around the first annular slide rail 309 under the meshing action of the adjusting worm 311 and the worm gear 310.

[0034] A radial limiting slide 3011 is evenly opened circumferentially on the rear end surface of the ring cylinder 301 and acts on each limiting slider 307. Then, an oblique slide groove 3101 corresponding to each radial limiting slide 3011 and acting on the boss 308 is evenly opened circumferentially on the front side surface of the worm gear 310. One end of each oblique slide groove 3101 is close to the outer side of the circumference, and the other end is close to the inner side of the circumference.

[0035] The insulation extrusion wire air blowing sleeve disclosed in Example 1 can be used during the outlet cooling process for cables of varying diameters or insulation extrusion temperatures. The distance between the air blowing nozzle 306 and the cable being pulled through can be adjusted based on the cable diameter or insulation extrusion outlet temperature. In operation, the user rotates the screwing portion 319, which then engages the worm gear 310, causing the worm gear 310 to rotate around the first annular guide rail 309. During the rotation of the worm gear 310, the boss 308 is acted upon by the oblique groove 3101, and the limit slider 307 is acted upon by the radial limit slide 3011, which causes all the blowing nozzles 306 to move radially inward or outward, and during the movement, the bellows 305 is extended or shortened to adjust itself adaptively until the distance between the blowing nozzle 306 and the cable is adjusted. At this time, the cooling airflow ejected from all the blowing nozzles 306 can evenly cool the insulated cable after extrusion, so that it can be pre-cooled and shaped before being passed into the cooling water tank for further cooling and shaping, thereby ensuring the quality of the shaped product.

[0036] Example 2

[0037] Example 2 discloses an insulation extruded wire blowing suit which is further improved based on Example 1. Figure 1 and attached Figure 2 The main part of the insulating extruded wire blowing suit includes a base 1, on the upper surface of which a column 2 and an air source device 4 are provided, and a blowing suit mechanism 3 is fixedly connected to the top of the column 2. In the specific design, the column 2 adopts a telescopic adjustable structure, which includes an outer column 201 fixed to the upper surface of the base 1, a telescopic inner column 202 extending out of the outer column 201 is inserted into the outer column 201, and then a row of sockets 203 spaced apart along the height direction are provided on the outer column 201 and the telescopic inner column 202, and a pin 204 for fixing is inserted into two aligned sockets 203 of the outer column 201 and the telescopic inner column 202, so that after the height adjustment of the telescopic inner column 202 is completed, the pin 204 is inserted into the socket 203 to achieve the fixation of the column 2.

[0038] Reference Attachment Figures 3-4 The air blowing mechanism 3 includes an annular tube 301 and an annular tube 302. The front end of the annular tube 301 is open, and a through tube 303 for passing cables is concentrically connected to the rear end of the annular tube 301. The top of the column 2 is fixedly connected to the through tube 303, so that during the insulation extrusion process, the cables can enter through the front end opening of the annular tube 301 and then be sent out from the annular tube 301. The annular tube 302 is concentrically sleeved around the outer periphery of the annular tube 301, and the bottom of the annular tube 302 is connected to the air source device 4 via an air supply pipe 401. The specific air source device 4 can be any of an air pump, a blower, or a compressed air tank, so that the air source device 4 can continuously supply high-speed cooling air to the annular tube 302.

[0039] Connected to the inner ring of the annular tube 302 are multiple connecting branches 304 extending radially into the interior of the annular cylinder 301 in an annular array. In this embodiment 1, eight connecting branches 304 are provided, evenly spaced around the circumference. Each connecting branch 304 is connected to the radially inner end of a bellows 305. A blow nozzle 306 is then connected to the radially inner end of the bellows 305, with the blow nozzle 306 positioned radially toward the insulation layer of the cable being pulled through. A limit slider 307 is fixedly attached to the rear end of each blow nozzle 306, and a boss 308 is fixed to the side of the limit slider 307 facing away from the blow nozzle 306. A first annular rail 309 is concentrically fixed to the rear end of the annular cylinder 301, located outside the through-tube 303. A worm gear 310 is rotatably connected to the first annular rail 309, and an adjusting worm 311 is rotatably connected to the annular cylinder 301, meshing with the worm gear 310. In the specific design, rotating brackets 318 are fixedly connected to both sides of the upper end of the ring cylinder 301, and then the adjusting worm 311 is rotatably connected between the two rotating brackets 318, and a screwing portion 319 is provided at one end of the adjusting worm 311, so that by rotating the screwing portion 319, the worm gear 310 is rotated around the first annular slide rail 309 under the meshing action of the adjusting worm 311 and the worm gear 310.

[0040] A radial limiting slide 3011 is evenly opened circumferentially on the rear end surface of the ring cylinder 301 and acts on each limiting slider 307. Then, an oblique slide groove 3101 corresponding to each radial limiting slide 3011 and acting on the boss 308 is evenly opened circumferentially on the front side surface of the worm gear 310. One end of each oblique slide groove 3101 is close to the outer side of the circumference, and the other end is close to the inner side of the circumference.

[0041] The key improvement of Example 2 is that a second annular rail 312 is concentrically fixed to the front face of the annular cylinder 301. A gear ring disk 313 is rotatably connected to the second annular rail 312. Multiple infrared temperature sensors 314, radially oriented toward the center of the ring, are uniformly fixed and circumferentially attached to the front side of the gear ring disk 313. In the specific design, four infrared temperature sensors 314 are provided, evenly spaced circumferentially on the gear ring disk 313. Common wiring connects these four infrared temperature sensors 314 to a control box 5 mounted on the base 1. Each connecting branch pipe 304 is equipped with a flow control valve 315 controlled by the control box 5. A rotational adjustment motor 316, controlled by the control box 5, is then fixed to the outer circumference of the annular cylinder 301. A power gear 317 meshing with the gear ring disk 313 is mounted on the motor shaft of the rotational adjustment motor 316. In the specific design, the rotational adjustment motor 316 is preferably a servo motor capable of forward and reverse rotation and adjustable angle of rotation.

[0042] In this embodiment 2, through the above-mentioned structural improvement design, before the cable after insulation extrusion is pulled through the ring drum 301, four infrared temperature sensors 314 in different directions first detect its surface temperature, and the rotary adjustment motor 316 can drive the power gear 317 forward and reverse, thereby causing the gear ring disk 313 to rotate back and forth within the range of ±45°. Then, combined with the four infrared temperature sensors 314, the outer surface temperature of the entire cable after insulation extrusion can be detected. When it is found that the surface temperature of the cable after insulation extrusion is uneven, the controller inside the control box 5 will actively control the opening and closing angle of the flow control valve 315 on the corresponding connecting branch 304, and then adjust the gas flow rate discharged from the blowing nozzle 306 in different directions, so that after the blowing cooling by the blowing set mechanism 3, the surface cooling is uniform, which greatly reduces the problem of uneven stress in the insulation layer caused by uneven surface temperature and effectively ensures the quality of the cable after insulation extrusion.

[0043] The above description of the present invention is exemplified in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. An insulated extruded wire blowing suit, comprising a base (1), a column (2) and an air source device (4) being provided on the upper surface of the base (1), a blowing suit mechanism (3) being fixedly connected to the top of the column (2), characterized in that: The blowing sleeve mechanism (3) comprises an annular cylinder (301) and an annular tube (302) which are concentrically arranged inside and outside. The front end of the annular cylinder (301) is open, and the rear end of the annular cylinder (301) is concentrically connected to a through cylinder (303). The annular tube (302) is connected to the air source device (4) via an air delivery pipe (401), and the inner ring of the annular tube (302) is connected to a plurality of connecting branches (304) in an annular array and radially extending into the interior of the annular cylinder (301), the radial inner end of each connecting branch (304) is connected to a bellows telescopic tube (305), the inner end of the bellows telescopic tube (305) is connected to an air blowing nozzle (306), and a limiting slider (307) is fixed to the rear side end of the air blowing nozzle (306), and an adjusting mechanism for driving all the limiting sliders (307) to move radially is provided on the annular cylinder (301).

2. The insulated extruded wire blowing suit according to claim 1, characterized in that: The adjustment mechanism comprises a first annular slide rail (309) concentrically arranged on the rear end face of the annular cylinder (301); a worm wheel (310) is rotatably connected to the first annular slide rail (309); an adjustment worm (311) meshing with the worm wheel (310) is rotatably connected to the annular cylinder (301); radial limiting sliding openings (3011) interacting with each limiting slider (307) are uniformly provided on the rear end face of the annular cylinder (301); oblique sliding grooves (3101) corresponding to each radial limiting sliding opening (3011) are uniformly provided on the front side face of the worm wheel (310); and a protruding column (308) interacting with the oblique sliding groove (3101) is fixed on the side face of the limiting slider (307) away from the blowing nozzle (306).

3. An insulating extruded wire blowing suit according to claim 1 or 2, characterized in that: A second annular slide rail (312) is concentrically fixed on the front end surface of the annular cylinder (301), a gear ring disc (313) is rotatably connected to the second annular slide rail (312), a front side surface of the gear ring disc (313) is evenly and fixedly connected to a plurality of infrared temperature measuring sensors (314) arranged radially toward the center of the circle, the plurality of infrared temperature measuring sensors (314) are connected to a control box (5) arranged on the base (1) via a common wire, and each of the connecting branch pipes (304) is provided with a flow regulating valve (315) controlled by the control box (5).

4. The insulated extruded wire blowing kit according to claim 3, characterized in that: A rotation regulating motor (316) controlled by a control box (5) is fixed on the outer circumferential surface of the annular cylinder (301), and a power gear (317) meshing with the gear ring disk (313) is provided on the motor shaft of the rotation regulating motor (316).

5. The insulated extruded wire blowing kit according to claim 4, characterized in that: The annular tube (302) is provided with eight communicating branch pipes (304) uniformly connected circumferentially, the gear ring disk (313) is provided with four infrared temperature measuring sensors (314) uniformly arranged circumferentially, and the rotation adjustment motor (316) is a servo motor capable of forward and reverse rotation and adjustable rotation angle.

6. The insulated extruded wire blowing kit according to claim 2, characterized in that: Both sides of the upper end of the ring cylinder (301) are fixedly connected with rotating brackets (318), the adjusting worm (311) is rotatably connected between the two rotating brackets (318), and one end of the adjusting worm (311) is provided with a screwing portion (319).

7. The insulated extruded wire blowing kit according to claim 1, characterized in that: The column (2) comprises an outer column (201) fixed on the upper surface of the base (1); a telescopic inner column (202) extending out of the outer column (201) is inserted into the outer column (201); a row of sockets (203) spaced apart along the height direction are provided on the outer column (201) and the telescopic inner column (202); two aligned sockets (203) are inserted with latches (204) for fixing.

8. The insulated extruded wire blowing kit according to claim 1, characterized in that: The gas source device (4) is selected from any one of an air pump, a blower or a compressed gas tank.

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