CN117174397A - Cooling equipment of extruding machine for cable production - Google Patents

Abstract

The utility model relates to a cooling device of an extruding machine for cable production, which comprises an auxiliary device, a circulating device, a cold water tank and a cooling water tank, wherein the circulating device is used for circulating cooling water in the cooling water tank and the cold water tank; the circulating device comprises a water pump, a water inlet pipe, a water outlet pipe and two communicating pipes, wherein the auxiliary device is used for reducing thickness difference of the periphery of the outer sheath, the auxiliary device comprises a spray header and a connecting pipe, two ends of the connecting pipe are respectively communicated with the water outlet pipe and the spray header, the spray header is in an arch-shaped arrangement, the spray header is located under the cable and surrounds the cable in the cable, and the spray header is used for spraying out a fan-shaped water curtain towards one side of the cable axis. The spraying head sprays the cable from the lower part of the cable when the cable just exits the plastic extruding machine, so that the upward force can be applied to the molten plastic, the flowing speed of the molten plastic under the action of gravity is reduced, the time of cooling water acting on the molten plastic is shortened, the molten plastic is plasticized and molded as early as possible, and the thickness difference of all parts of the periphery of the outer sheath is reduced.

Description

Cooling equipment of extruding machine for cable production

Technical Field

The utility model relates to the technical field of cables and equipment for producing the cables, in particular to cooling equipment of an extruder for producing the cables.

Background

The cable is an indispensable connecting cable in electrical equipment, and generally consists of an innermost conductive cable and a plurality of outer layers, wherein the inner layer cable is formed by twisting a plurality of single wires, and the production process of the wire and the cable is continuous and generally comprises the following procedures: wire drawing-stranded wire-insulating layer extrusion-cabling-outer sheath layer-product test. The extrusion of the outer jacket is usually carried out by means of an extruder, and the extruded cable is cooled in a cooling water tank.

The utility model patent with publication number of CN205364496U discloses a water cooling device of an extruding machine discharge port, which comprises a strip-shaped water tank arranged at the top opening of the extruding machine discharge port, wherein a water outlet is arranged at one end of the water tank close to the extruding machine discharge port, a water inlet is arranged at one end of the water tank far away from the extruding machine discharge port, the water inlet is higher than the water outlet, and guide rollers are arranged below the water inlet and the water outlet.

The related technical scheme has the following defects: when the diameter of the produced cable is large to a certain extent, the thickness of the outer sheath on the corresponding cable can be increased, and when the cable passes through the cooling device horizontally after extrusion molding, the thickness of the insulating sheath is inconsistent under the action of gravity of the cable because the molten plastic is not completely plasticized when the molten plastic exits the extruder, so that the production quality of the cable is affected.

Disclosure of Invention

In order to reduce the difference between the upper thickness and the lower thickness of the insulating sheath after production, the utility model provides cooling equipment of an extruder for cable production.

The utility model provides cooling equipment of an extruding machine for cable production, which adopts the following technical scheme:

preferably, the cooling device comprises a circulating device, a cooling water tank and a cooling water tank, wherein the circulating device is used for circulating the cooling water in the cooling water tank and the cooling water tank, and the cooling water tank is used for allowing the cable after extrusion molding of the outer sheath to pass through in the horizontal direction and be cooled;

the circulating device comprises a water pump, a water inlet pipe, a water outlet pipe and two communicating pipes, wherein two partition plates are respectively arranged at two ends in the cold water tank, the partition plates divide the cold water tank into a middle tank and two overflow tanks, the two overflow tanks are respectively positioned at two sides of the middle tank, the overflow tanks are used for receiving cooling water which overflows through the two partition plates in the middle tank, the two communicating pipes respectively correspond to the two overflow tanks, two ends of the communicating pipes are respectively communicated with the corresponding overflow tanks and the cooling water tank, two ends of the water inlet pipe are respectively communicated with a water inlet of the water pump and the cooling water tank, and two ends of the water outlet pipe are respectively communicated with the middle tank and a water outlet of the water pump;

the auxiliary device is used for reducing thickness differences of all the peripheral parts of the outer sheath, the auxiliary device comprises a spray header and a connecting pipe, two ends of the connecting pipe are respectively communicated with a water outlet pipe and the spray header, the spray header is positioned in an overflow groove close to one side of the plastic extruding machine, the spray header is in an arch shape, the spray header is positioned under a cable and surrounds the cable, and the spray header is used for spraying a fan-shaped water curtain towards one side of the cable axis.

Through adopting above-mentioned technical scheme, spray the cable from the cable below when the cable just goes out the extruder through auxiliary device's shower head, firstly can upwards apply force to molten plastics, reduce the speed that molten plastics flowed under the action of gravity, secondly accelerate the time that cooling water acted on molten plastics, make molten plastics plasticize the shaping as early as possible to reduce the thickness difference everywhere in oversheath circumference.

Preferably, the auxiliary device further comprises a flow control device for controlling the flow of the connecting pipe, the flow control device comprises a first driving piece and two stop blocks, the stop blocks are connected to the connecting pipe in a sliding mode along the direction perpendicular to the water flow in the connecting pipe, the two stop blocks are opposite to each other and are used for stopping on the water flow path of the connecting pipe, and the first driving piece drives the two stop blocks to slide.

Through adopting above-mentioned technical scheme, the diameter of cable is bigger, and the thickness of corresponding oversheath also can be thicker, needs shower head spun coolant liquid to have bigger impulsive force to act on the oversheath this moment, and through two dog removal of driving piece one drive, can adjust the circulation cross section size of connecting pipe to adjust the velocity of flow of rivers in the connecting pipe, finally change shower head spun coolant liquid's impulsive force size.

Preferably, the first driving piece includes fixed roller, moves roller, first spring and two connecting rods, fixed roller and the mutual parallel arrangement of moving roller, fixed roller rotates along the direction of transportation of perpendicular to cable and connects on being close to the overflow launder inner wall on one side of the extruding machine, move roller along vertical direction sliding connection on corresponding overflow launder inner wall, fixed roller is located the top of cable, move the roller and be located the below of cable, first spring drive moves roller butt on the cable, two connecting rods are located the both sides of two dogs respectively, the one end of connecting rod is fixed on moving roller, the other end of connecting rod sets up towards corresponding dog, first inclined plane has been seted up towards the one end terminal surface of dog to the connecting rod, the one end of dog stretches out the connecting pipe and has seted up the second inclined plane that matches with first inclined plane, first inclined plane is supported on the second inclined plane all the time, first inclined plane is close to the one end of connecting pipe to the height position of the one end of keeping away from.

By adopting the technical scheme, the diameter of the cable can be automatically detected by the cooperation of the fixed roller, the movable roller and the first spring, and simultaneously the movable roller can drive the two connecting rods to move in the vertical direction; the water flow in the connecting pipe always pushes the two check blocks towards the sides far away from each other, and the first inclined surface on the connecting rod is matched with the second inclined surface on the check blocks, so that the positions of the check blocks are changed, and when the moving roller moves downwards, the two check blocks move towards the sides close to each other, and the liquid flow rate is increased; when the moving roller moves upwards, the two stoppers move towards the sides far away from each other, and the liquid flow rate is reduced.

Preferably, the device further comprises an adjusting device, the adjusting device comprises a fixed disc, two pull ropes and two second springs, the spray header is made of deformable materials, the fixed disc is sleeved and fixed on the connecting pipe, the fixed disc is positioned below the spray header, the two second springs respectively correspond to two ends of the spray header, two ends of the second springs are respectively fixed on the end parts of the corresponding spray header and the fixed disc, and the second springs are always in a compressed state; the two pull ropes are respectively positioned at two sides of the connecting pipe, the two pull ropes correspond to two ends of the spray header respectively, one end of each pull rope is fixed at the end part corresponding to the spray header, and the other end of each pull rope penetrates through the fixing disc and is fixed at the end part of the corresponding stop block extending out of the connecting pipe; when the two stop blocks move towards one end which is close to each other, the two ends of the spray header are gradually opened.

Through adopting above-mentioned technical scheme, when the cable diameter through the cold water tank became big, when the movable roller moved down, two dogs moved towards one side that is close to each other, and the dog drove the one end of stay cord and removed, and the stay cord drove the tip of shower head and opens, makes the cable of the bigger diameter of adaptation that the shower head can be better, improves the effect of shower head to the cable.

Preferably, the plastic extruding machine further comprises a locking piece, a cover body and an abutting block, wherein the abutting block is fixed on the inner wall of the overflow groove close to one side of the plastic extruding machine, a rotating rod is arranged at one end of the cover body and is rotationally connected to the abutting block, the locking piece is used for locking the rotating position of the cover body, when the cover body rotates to be abutted to the abutting block, the cover body is located right above the cable and the arched spray head, and the cover body is used for blocking cooling liquid splashed after the spray head impacts the cable.

Through adopting above-mentioned technical scheme, the cover body can cover the shower head, blocks the coolant liquid that splashes after the shower head strikes the cable, reduces the splash of coolant liquid, alleviates operating personnel's clearance degree of difficulty.

Preferably, the shower head further comprises a driving belt and a hand rotating valve with a hand wheel, wherein the hand rotating valve is arranged on the connecting pipe and used for controlling the opening and closing of the connecting pipe, the driving belt is wound on the hand wheel and the rotating rod, when the cover body is opened towards one side far away from the shower head, the hand rotating valve is closed, and when the cover body is rotated to be abutted on the abutting block, the hand rotating valve is closed.

By adopting the technical scheme, when the diameter of the cable is not large and the auxiliary device is not required to adjust the thickness difference of the peripheral direction of the outer sheath, the cover body is opened, and the cover body drives the hand wheel to rotate so as to enable the hand-turning valve to be closed, thereby closing the auxiliary device; when the cable diameter is larger, the auxiliary device is required to adjust the thickness difference of the peripheral parts of the outer sheath, the cover body is closed, the cover body drives the hand wheel to rotate so that the hand-turning valve is opened, and the auxiliary device starts to operate.

The technical effects of the utility model are mainly as follows:

1. according to the utility model, by arranging the auxiliary device, the spray head of the auxiliary device sprays the cable from the lower part of the cable when the cable just exits the plastic extruding machine, firstly, the molten plastic can be upwards forced, the flowing speed of the molten plastic under the action of gravity is reduced, secondly, the time of cooling water acting on the molten plastic is shortened, the molten plastic is plasticized and molded as soon as possible, and thus, the thickness difference of all parts of the periphery of the outer sheath is reduced;

2. according to the utility model, the adjusting device is arranged, when the diameter of the cable passing through the cold water tank is increased, the two stop blocks move towards one side close to each other when the moving roller moves downwards, the stop blocks drive one end of the pull rope to move, and the pull rope drives the end part of the spray header to open, so that the spray header can be better adapted to the cable with larger diameter, and the effect of the spray header on the cable is improved.

Drawings

Fig. 1 is a schematic view showing the overall structure of a cooling apparatus according to an embodiment of the present utility model.

Fig. 2 is a schematic view of the structure of the cover in an open state according to the embodiment of the present utility model.

Fig. 3 is a cross-sectional view taken along line A-A of fig. 2.

Fig. 4 is an enlarged view at B in fig. 3.

Reference numerals illustrate: 1. a cable; 12. an outer sheath; 2. a frame; 21. a cold water tank; 211. a partition plate; 22. a cooling water tank; 23. a middle groove; 24. an overflow trough; 25. a nearby tank; 3. a circulation device; 31. a water pump; 32. a water inlet pipe; 33. a water outlet pipe; 34. a communicating pipe; 4. an auxiliary device; 41. a spray header; 42. a connecting pipe; 43. a flow control device; 431. a stop block; 4311. a second inclined surface; 44. a first driving member; 441. a fixed roller; 442. a moving roller; 443. a first spring; 444. a connecting rod; 4441. a first inclined surface; 5. an adjusting device; 51. a fixed plate; 52. a pull rope; 53. a second spring; 61. a locking member; 611. a magnetic block; 612. a magnet; 62. a cover body; 621. a rotating rod; 63. an abutment block; 64. a hand-operated valve; 641. a hand wheel; 65. a conveyor belt.

Detailed Description

The present utility model will be further described in detail below with reference to fig. 1-4, so that the technical solution of the present utility model can be more easily understood and mastered.

The embodiment of the utility model discloses cooling equipment of an extruder for cable production.

Referring to fig. 1-4, a cooling device of an extruder for cable production in this embodiment includes a circulation device 3, a rack 2, and a cooling water tank 21 and a cooling water tank 22 disposed on the rack 2, where the cooling water tank 21 is located right above the cooling water tank 22, and according to practical situations, an external cooling device may be disposed on the cooling water tank 22 to cool the cooling water tank, for example, using a refrigerator to cool the cooling water tank. The circulation device 3 is used for circulating cooling water in the cooling water tank 22 and the cooling water tank 21. The cable 1 is first passed through an extruder to cover the outer jacket 12, and the cooling water tank 21 is used for passing the extruded cable 1 along the horizontal direction and cooling, and the transmission direction of the cable 1 is parallel to the length direction of the cooling water tank 21.

Referring to fig. 1 to 4, the circulation device 3 includes a water pump 31, a water inlet pipe 32, a water outlet pipe 33 and two communicating pipes 34, two partition boards 211 are respectively fixed at two ends in the cold water tank 21, the partition boards 211 divide the cold water tank 21 into a middle tank 23 and two overflow tanks 24, the two overflow tanks 24 are respectively located at two sides of the middle tank 23, the overflow tanks 24 are used for receiving cooling water in the middle tank 23 which overflows the two partition boards 211, the communicating pipes 34 respectively correspond to the two overflow tanks 24, two ends of the communicating pipes 34 respectively communicate with the corresponding overflow tanks 24 and the cooling water tank 22, two ends of the water inlet pipe 32 respectively communicate with a water inlet of the water pump 31 and the cooling water tank 22, and two ends of the water outlet pipe 33 respectively communicate with a water outlet of the middle tank 23 and the water pump 31.

Referring to fig. 1 to 4, a cooling apparatus of an extruder for producing cables of the present embodiment further includes an auxiliary device 4. When the diameter of the cable 1 is large to a certain extent, the thickness of the corresponding outer sheath 12 also becomes large, and the thickness of the insulating sheath is inconsistent under the action of gravity of the molten plastic, because the molten plastic is not completely plasticized when the molten plastic exits the extruder. The auxiliary device 4 is used for reducing thickness difference of the outer sheath 12 around the circumference and improving quality of the outer sheath 12 after molding.

Referring to fig. 1 to 4, the auxiliary device 4 includes a shower head 41 and a connection pipe 42. The overflow channel 24 on the side close to the extruder of the two overflow channels 24 is made the nearby channel 25. The shower head 41 is the arch setting, and connecting pipe 42 is vertical setting, and the top and the bottom of connecting pipe 42 communicate outlet pipe 33 and shower head 41 respectively, and shower head 41 is located near inslot 25, and shower head 41 is located cable 1 under and surrounds cable 1 in, and shower head 41 is used for towards cable 1 axis one side blowout fan-shaped water curtain.

Referring to fig. 1 to 4, the cable 1 is sprayed from below the cable 1 by the spray header 41 of the auxiliary device 4 when the cable 1 just exits the extruder, firstly, the molten plastic can be forced upwards, the flowing speed of the molten plastic under the action of gravity is reduced, secondly, the time of the cooling water acting on the molten plastic is shortened, the molten plastic is plasticized and molded as early as possible, and the thickness difference of the peripheral part of the outer sheath 12 is reduced.

Referring to fig. 1 to 4, the auxiliary device 4 further includes a flow control device 43 for controlling the flow of the connecting pipe 42, the flow control device 43 includes a first driving member 44 and two stoppers 431 slidably connected to the connecting pipe 42 in a horizontal width direction parallel to the cold water tank 21, the two stoppers 431 are disposed opposite to each other, the two stoppers 431 are configured to block the water path of the connecting pipe 42, and the first driving member 44 drives the two stoppers 431 to slide.

Referring to fig. 1-4, the larger the diameter of the cable 1, the thicker the thickness of the outer sheath 12, and at this time, the larger the impact force of the cooling liquid sprayed by the spray header 41 on the outer sheath 12, the two stoppers 431 are driven to move by the first driving member 44, so as to adjust the flow cross section of the connecting pipe 42, thereby adjusting the flow velocity of the water flow in the connecting pipe 42, and finally changing the impact force of the cooling liquid sprayed by the spray header 41.

Referring to fig. 1 to 4, the first driving member 44 includes a fixed roller 441, a movable roller 442, a first spring 443, and two connecting rods 444, the fixed roller 441 and the movable roller 442 are disposed parallel to each other, the fixed roller 441 is rotatably connected to the inner wall of the adjacent tank 25, the rotation axis direction of the fixed roller 441 is parallel to the width direction of the cold water tank 21, the movable roller 442 is located directly below the fixed roller 441 and is slidably connected to the inner wall of the adjacent tank 25 in the vertical direction, the fixed roller 441 is located above the cable 1, and the movable roller 442 is located below the cable 1. Both ends of the first spring 443 are fixed to the bottom wall of the adjacent groove 25 and the movable roller 442, respectively, the first spring 443 is always in a compressed state, and the first spring 443 drives the movable roller 442 to abut against the cable 1.

Referring to fig. 1-4, two connecting rods 444 are respectively located at two sides of two stoppers 431, one end of each connecting rod 444 is fixed on a moving roller 442, the other end of each connecting rod 444 is opposite to and faces the corresponding stopper 431, a first inclined surface 4441 is formed on the end surface of one end of each connecting rod 444, which faces the stopper 431, the first inclined surface 4441 gradually descends from the position, close to one end of the connecting pipe 42, to the position, far away from one end of the connecting pipe 42, of each connecting rod 444, one end of each stopper 431 extends out of the connecting pipe 42 and is provided with a second inclined surface 4311 matched with the first inclined surface 4441, and the first inclined surface 4441 always abuts against the second inclined surface 4311.

Referring to fig. 1 to 4, the moving roller 442 is moved to a corresponding position according to the diameter of the passing cable 1, the cooperation of the fixed roller 441, the moving roller 442 and the first spring 443 can automatically detect the diameter of the cable 1, and the moving roller 442 can drive the two connection rods 444 to move in the vertical direction. The water flow in the connecting pipe 42 always pushes the two stoppers 431 toward the sides away from each other, and the first inclined surface 4441 on the connecting rod 444 is matched with the second inclined surface 4311 on the stopper 431, so that the position of the stopper 431 in the connecting pipe 42 is changed. When the moving roller 442 moves downward, the two stoppers 431 move toward the sides close to each other, increasing the flow rate of the liquid in the connection pipe 42; when the movable roller 442 moves upward, the two stoppers 431 move toward the sides away from each other, and the flow rate of the liquid in the connection pipe 42 is reduced.

Referring to fig. 1 to 4, the cooling apparatus of the extruder for cable production of the present embodiment further includes an adjusting device 5, and the adjusting device 5 includes a fixing plate 51, two pulling ropes 52, and two second springs 53. The showerhead 41 is made of a deformable material such as rubber or silicone. The fixed disk 51 is sleeved and fixed on the connecting pipe 42, the fixed disk 51 is positioned right below the spray header 41, and the fixed disk 51 is positioned above the two stop blocks 431. The two second springs 53 respectively correspond to the two ends of the spray header 41, the two ends of the second springs 53 are respectively fixed on the end part corresponding to the spray header 41 and the fixed disc 51, and the second springs 53 are always in a compressed state. The two pull ropes 52 are respectively located at two sides of the connecting pipe 42, the two pull ropes 52 respectively correspond to two ends of the spray header 41, one end of each pull rope 52 is fixed at the end part corresponding to the spray header 41, and the other end of each pull rope 52 sequentially passes through the corresponding second spring 53 and the fixed disc 51 and then is fixed at the end part of the corresponding stop 431 extending out of the connecting pipe 42.

Referring to fig. 1-4, when the diameter of the cable 1 passing through the cold water tank 21 becomes larger, when the moving roller 442 moves downwards, the two stoppers 431 move towards the side close to each other, the stoppers 431 drive one end of the pull rope 52 to move, and the pull rope 52 drives the end of the spray header 41 to open, so that the spray header 41 can better adapt to the cable 1 with larger diameter, and the effect of the spray header 41 on the cable 1 is improved. On the contrary, when the diameter of the cable 1 passing through the cold water tank 21 is reduced, the second springs 53 drive the two ends of the spray header 41 to shrink, so that the spray header 41 can be better adapted to the cable 1 with smaller diameter, and the effect of the spray header 41 on the cable 1 is improved.

Referring to fig. 1 to 4, the cooling apparatus of the extruder for producing cables of the present embodiment further includes a locking member 61, a cover 62 and an abutment block 63, the abutment block 63 is fixed to the inner wall of the adjacent tank 25, one end of the cover 62 is fixed with a rotating rod 621, and the rotating rod 621 is rotatably connected to the abutment block 63 in a direction parallel to the length direction of the cooling water tank 21. When the cover 62 rotates to abut against the abutment block 63, the cover 62 is located directly above the cable 1 and the arched shower head 41, and the cover 62 is used for blocking the coolant splashed after the shower head 41 impacts the cable 1. In order to better enable the cover body 62 to cover the spray header 41, one end, far away from the rotating rod 621, of the cover body 62 is in an arch-shaped arrangement, so that the cooling liquid splashed after the spray header 41 impacts the cable 1 can be better blocked, the splashing of the cooling liquid is reduced, and the cleaning difficulty of operators is reduced.

Referring to fig. 1 to 4, the locking member 61 is used for locking the rotational position of the cover 62, the locking member 61 includes a magnetic block 611 and two magnet blocks 612, the magnetic block 611 is embedded on the cover 62, one magnet block 612 is embedded on the abutting block 63, the other magnet block 612 is embedded on the inner wall of the nearby groove 25, and when the cover 62 rotates to abut on the abutting block 63 or the cover 62 rotates to abut on the inner wall of the nearby groove 25 toward the side far from the cable 1, the magnet blocks 611 are adsorbed by the magnet blocks 612, so that the cover 62 is kept in a stationary state.

Referring to fig. 1 to 4, a hand-turning valve 64 with a hand wheel 641 is installed on the connection pipe 42, and an operator can control the opening and closing of the connection pipe 42 by turning the hand wheel 641. The hand wheel 641 is connected with a conveyor belt 65 which is wound around the hand wheel 641 and the rotating rod 621. When the cover 62 is opened toward the side away from the shower head 41, the manual rotation valve 64 is closed; when the cover 62 rotates to abut against the abutment block 63, the manual rotation valve 64 is closed.

Referring to fig. 1-4, when the diameter of the cable 1 is not large, the thickness of the outer sheath 12 is not thick, and the auxiliary device 4 is not required to adjust the thickness difference of the outer sheath 12 around the circumference, the cover 62 is opened, the cover 62 drives the hand wheel 641 to rotate so as to close the hand-turning valve 64, and the auxiliary device 4 stops running. When the diameter of the cable 1 is larger and the thickness of the outer sheath 12 is thicker, and the auxiliary device 4 is required to adjust the thickness difference of the outer sheath 12 around, the cover 62 is closed, the cover 62 drives the hand wheel 641 to rotate so as to open the hand-turning valve 64, and the auxiliary device 4 starts working.

Of course, the above is only a typical example of the utility model, and other embodiments of the utility model are also possible, and all technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of the utility model claimed.

Claims (6)

1. The utility model provides a cooling arrangement of extruder for cable manufacture which characterized in that: the cooling device comprises a circulating device (3), a cooling water tank (21) and a cooling water tank (22), wherein the circulating device (3) is used for circulating cooling water in the cooling water tank (22) and the cooling water in the cooling water tank (21), and the cooling water tank (21) is used for allowing a cable (1) subjected to extrusion molding of an outer jacket (12) to pass along the horizontal direction and be cooled;

the circulating device (3) comprises a water pump (31), a water inlet pipe (32), a water outlet pipe (33) and two communicating pipes (34), two partition plates (211) are respectively arranged at two ends in the cold water tank (21), the partition plates (211) divide the cold water tank (21) into a middle tank (23) and two overflow tanks (24), the two overflow tanks (24) are respectively positioned at two sides of the middle tank (23), the overflow tanks (24) are used for receiving cooling water which overflows through the two partition plates (211) in the middle tank (23), the two communicating pipes (34) respectively correspond to the two overflow tanks (24), two ends of the communicating pipes (34) are respectively communicated with the corresponding overflow tanks (24) and the cooling water tank (22), two ends of the water inlet pipe (32) are respectively communicated with a water inlet of the water pump (31) and a water outlet of the water pump (31), and two ends of the water outlet pipe (33) are respectively communicated with the middle tank (23) and a water outlet of the water pump (31).

Still include auxiliary device (4), auxiliary device (4) are used for reducing the thickness difference in oversheath (12) circumference everywhere, auxiliary device (4) are including shower head (41) and connecting pipe (42), the both ends of connecting pipe (42) communicate outlet pipe (33) and shower head (41) respectively, shower head (41) are located overflow launder (24) near extruder one side, shower head (41) are the arch setting, shower head (41) are located under cable (1) and enclose cable (1) in, shower head (41) are used for towards fan-shaped water curtain of cable (1) axis one side blowout.

2. The cooling apparatus of an extruder for cable production according to claim 1, wherein: the auxiliary device (4) further comprises a flow control device (43) for controlling the flow of the connecting pipe (42), the flow control device (43) comprises a first driving piece (44) and two stop blocks (431), the stop blocks (431) are connected to the connecting pipe (42) in a sliding mode along the direction perpendicular to the water flow in the connecting pipe (42), the two stop blocks (431) are opposite to each other and are used for blocking the water flow path of the connecting pipe (42), and the first driving piece (44) drives the two stop blocks (431) to slide.

3. A cooling apparatus of an extruder for cable production according to claim 2, characterized in that: the first driving piece (44) comprises a fixed roller (441), a movable roller (442), a first spring (443) and two connecting rods (444), wherein the fixed roller (441) and the movable roller (442) are arranged in parallel, the fixed roller (441) is rotationally connected to the inner wall of an overflow groove (24) close to one side of the plastic extruding machine along the transportation direction perpendicular to the cable (1), the movable roller (442) is slidingly connected to the inner wall of the corresponding overflow groove (24) along the vertical direction, the fixed roller (441) is positioned above the cable (1), the movable roller (442) is positioned below the cable (1), the first spring (443) drives the movable roller (442) to be abutted to the cable (1), the two connecting rods (444) are respectively positioned at two sides of two stop blocks (431), one end of each connecting rod (444) is fixed on the movable roller (442), the other end of each connecting rod (444) is arranged towards the corresponding stop block (431), the end face of each connecting rod (444) is provided with a first inclined surface (431) towards one end face of the corresponding stop block (431), the first inclined surface (41) is always matched with the first inclined surface (4411) which is extended out of the first inclined surface (4441), the first inclined surface (4441) gradually descends from one end close to the connecting pipe (42) to a height position far away from one end of the connecting pipe (42).

4. A cooling apparatus of an extruder for cable production according to claim 3, characterized in that: the novel shower head is characterized by further comprising an adjusting device (5), wherein the adjusting device (5) comprises a fixed disc (51), two pull ropes (52) and two second springs (53), the shower head (41) is made of deformable materials, the fixed disc (51) is sleeved and fixed on the connecting pipe (42), the fixed disc (51) is positioned below the shower head (41), the two second springs (53) respectively correspond to two ends of the shower head (41), two ends of the second springs (53) are respectively fixed on the end parts of the corresponding shower head (41) and the fixed disc (51), and the second springs (53) are always in a compressed state; the two pull ropes (52) are respectively positioned at two sides of the connecting pipe (42), the two pull ropes (52) respectively correspond to two ends of the spray header (41), one end of each pull rope (52) is fixed at the end part corresponding to the spray header (41), and the other end of each pull rope (52) penetrates through the fixing disc (51) and is fixed at the end part of the corresponding stop block (431) extending out of the connecting pipe (42); when the two stoppers (431) move toward one end close to each other, both ends of the shower head (41) are gradually opened.

5. The cooling apparatus of an extruder for cable production according to claim 1, wherein: still include locking piece (61), cover body (62) and butt piece (63), butt piece (63) are fixed on overflow launder (24) inner wall near extruder one side, the one end of cover body (62) is equipped with bull stick (621), bull stick (621) rotate and connect on butt piece (63), locking piece (61) are used for locking the rotation position of cover body (62), when cover body (62) rotate to the butt on butt piece (63), cover body (62) are located directly over cable (1) and arch shower head (41), cover body (62) are used for blocking the coolant liquid that splashes behind shower head (41) impact cable (1).

6. The cooling apparatus of an extruder for cable production according to claim 5, wherein: still include drive belt and have hand rotary valve (64) of hand wheel (641), hand rotary valve (64) set up on connecting pipe (42) and are used for controlling opening and closing of connecting pipe (42), the drive belt is rolled up on hand wheel (641) and bull stick (621), when cover body (62) are opened towards keeping away from shower head (41) one side, hand rotary valve (64) are closed, when cover body (62) rotate to the butt on butt piece (63), hand rotary valve (64) are closed.