A sizing die cooling and lubrication device

Abstract

The invention discloses a sizing die cooling and lubricating device, which relates to the technical field of twisted cable production, and comprises a guide frame arranged at one side of a wire outlet of a twisting machine, and also comprises a cooling mechanism arranged on the guide frame, wherein a transverse through hole is opened on the guide frame, a sizing die is arranged inside the through hole, a cavity is formed between the outer surface of the sizing die and the inner wall of the through hole, and the cooling mechanism comprises a spray component acting on one side of the through hole and a drying component acting on the other side of the through hole and connected with the cavity; in the invention, a liquid spraying ring tube sprays cooling lubricating liquid on the surface of the wire core, so that the wire core and the die are cooled and lubricated, and at the same time, the surface of the wire core is smooth after being pressed, and the occurrence of fracture is reduced; the air inlet of the fan is connected with the cavity, so that the heat generated by friction is extracted, the heat dissipation effect is further improved, the mold is prevented from being deformed, the service life is increased, and the production cost is reduced; the jet ring tube dries the residual liquid on the surface of the twisted cable core, and will not affect the subsequent processing.

Description

Technical Field

[0001] The invention relates to the technical field of twisted cable production, and in particular to a sizing die cooling and lubricating device. Background Art

[0002] In the current cable production, such as through-ground wires, DC cables, power cables, etc., in order to achieve the purpose of twisting or cabling, the twisting equipment must complete two movements: one is to make the twisted single wire (or cable core wire) rotate around the central axis of the equipment; the other is to make the twisted product move forward in a straight line at a uniform speed; in addition, by adjusting the speed coordination of these two movements, the size of the helix angle formed by the twisted single wire (or cable core) can be changed to ensure that the twisted product meets its standard structural requirements; however, a large amount of friction heat will be generated during the sizing die shaping process, causing the sizing die to heat up and deform, which not only affects the production quality of the product, but also shortens the service life of the sizing die, thereby increasing the production cost. Summary of the invention

[0003] The object of the present invention is to provide a sizing die cooling and lubricating device, aiming to solve the problem that the sizing die is prone to heat and deformation in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a sizing die cooling and lubrication device, comprising a sizing die and a guide frame arranged on one side of the wire outlet of a stranding machine, and also comprising a cooling mechanism arranged on the guide frame, the guide frame is provided with a transverse through hole, the inside of the through hole is equipped with a sizing die for twisting and shaping the wire core, a cavity is formed between the outer surface of the sizing die and the inner wall of the through hole, the cooling mechanism comprises a spray assembly acting on one side of the through hole and a drying assembly acting on the other side of the through hole and connected to the cavity, one end of the sizing die is provided with a folded edge and the folded edge is connected to the guide frame body located on the other side of the through hole.

[0005] Furthermore, the drying component includes an exhaust fan, a heater and a jet ring tube, the exhaust fan and the heater are fixedly mounted on the guide frame, the air inlet end of the exhaust fan passes through the guide frame and is connected to the cavity, the air outlet end of the exhaust fan is connected to the jet ring tube through the heater, and the jet ring tube is adjacent to the other side of the through hole and is coaxially arranged with the through hole.

[0006] Furthermore, the spray assembly includes a liquid storage tank, a water pump and a liquid spray ring pipe. The liquid storage tank is arranged on the guide frame, the water pump is fixedly installed on the guide frame and the water inlet end is connected with the liquid storage tank, and the water outlet end is connected with the liquid spray ring pipe through the liquid guide pipe. The liquid spray ring pipe is adjacent to one side of the through hole and is coaxial with the through hole.

[0007] Furthermore, the sizing die includes a die sleeve and a parallel wire shaping die group arranged inside the die sleeve, the parallel wire shaping die group includes a parallel wire die arranged on one side of the die sleeve close to the through hole and a sizing die close to the other side of the through hole, the parallel wire die and the sizing die are coaxially arranged and fixedly connected, one end of the die sleeve is provided with a folded edge and the folded edge is connected to the guide frame body located on the other side of the through hole, and one end of the sizing die extends to the outside of the die sleeve and is connected to the folded edge.

[0008] Furthermore, the diameters of the air injection annular tube and the liquid injection annular tube are both larger than the diameter of the through hole.

[0009] The present invention has the following beneficial effects: The present invention provides a sizing die cooling and lubricating device, which sprays cooling lubricating liquid on the surface of a plurality of wire cores through a liquid spraying ring tube acting on one side of a through hole, thereby cooling and lubricating the wire cores and the die, and at the same time making the surface of the wire cores smooth after being pressed, thereby reducing the occurrence of breakage; the air inlet of the fan is connected to the cavity, so that the heat generated by friction in the cavity can be extracted, further cooling and dissipating the heat of the sizing die, preventing the sizing die from deformation due to heat, thereby increasing the service life of the sizing die and reducing the production cost; the plurality of wire cores are twisted and output from the other side of the through hole, and the jet ring tube connected to the air outlet of the fan sprays hot air to dry the residual liquid on the surface of the twisted cable core after shaping, without affecting the subsequent processing steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the jet ring tube in the present invention; In the figure: 1. guide frame; 2. sizing die; 3. cavity; 4. exhaust fan; 5. heater; 6. jet ring pipe; 7. liquid storage tank; 8. water pump; 9. spray ring pipe; 201. die sleeve; 202. paralleling die; 203. sizing die. DETAILED DESCRIPTION

[0011] like Figures 1 to 2 As shown, a sizing die cooling and lubrication device comprises a sizing die 2 and a guide frame 1 arranged at one side of the wire outlet of a stranding machine, and also comprises a cooling mechanism arranged on the guide frame 1. A transverse through hole is opened on the guide frame 1, and a sizing die 2 for twisting and shaping the wire core is matched inside the through hole. A cavity 3 is formed between the outer surface of the sizing die 2 and the inner wall of the through hole, and a feed port for inputting the wire core and a discharge port for outputting the twisted cable core after shaping are respectively formed at both ends of the through hole. The cooling mechanism comprises a spray assembly acting at the feed port of the through hole and a drying assembly acting at the discharge port of the through hole and connected to the cavity 3. A folded edge is provided at one end of the sizing die 2, and the folded edge is bolted to the frame body of the guide frame 1 located at the discharge port.

[0012] The drying assembly includes an exhaust fan 4, a heater 5 and an air jet ring 6. The exhaust fan 4 and the heater 5 are fixedly mounted on the guide frame 1. The air inlet end of the exhaust fan 4 passes through the guide frame 1 and is connected to the cavity 3. The cavity 3 and the feed port form a passage, which can extract the heat generated by friction inside the cavity 3, further achieving the effect of heat dissipation; the air outlet end of the exhaust fan 4 is connected to the air jet ring 6 through the heater 5. The air jet ring 6 is adjacent to the other side of the through hole and is coaxially arranged with the through hole, so as to dry the liquid remaining on the outer surface of the twisted cable core after shaping.

[0013] The spray assembly includes a liquid storage tank 7, a water pump 8 and a liquid spray ring pipe 9. The liquid storage tank 7 is arranged on the guide frame 1. The liquid storage tank 7 is used to store cooling lubricating liquid. The water pump 8 is fixedly installed on the guide frame 1 and the water inlet end is connected to the liquid storage tank 7. The water outlet end is connected to the liquid spray ring pipe 9 through a liquid guide pipe. The liquid spray ring pipe 9 is adjacent to one side of the through hole and is coaxial with the through hole.

[0014] The sizing die includes a die sleeve 201 and a parallel line shaping die group arranged inside the die sleeve 201, the parallel line shaping die group includes a parallel line die 202 arranged on one side of the die sleeve 201 close to the through hole and a sizing die 203 close to the other side of the through hole, the parallel line die 202 is fixedly connected to the sizing die 203, the through hole of the parallel line die 202 and the through hole of the sizing die 203 have the same diameter and are coaxially arranged, one end of the die sleeve 201 is provided with a folded edge and the folded edge is connected to the guide frame 1 located on the other side of the through hole, and one end of the sizing die 203 extends to the outside of the die sleeve 201 and is connected to the folded edge.

[0015] The air injection annular pipe 6 and the liquid injection annular pipe 9 have the same structure and their diameters are both larger than the diameter of the through hole.

[0016] The specific operation process of the present invention is as follows: When the wire core is being cabled, the traction box provides conveying power for the movement of the wire core. During the conveying process, the wire core passes through the feed port and enters the wire drawing die 202 for twisting. The twisting power is provided by the capstan assembly at the upper end of the twisting machine. The twisted cable becomes a cable core and passes through the sizing die 203, and is finally output from the discharge port.

[0017] The liquid spraying ring pipe 9 is suspended at the feed port. With the support of the water pump 8, the liquid spraying ring pipe 9 can spray cooling lubricating liquid to realize cooling and lubrication of the wire core and the mold, reduce the surface temperature of the wire core, solve various process problems caused by excessively high twisting temperature, and improve the twisting production efficiency. By arranging the jet ring pipe 6 at the discharge port, when the exhaust fan 4 and the heater 5 are running at the same time, the exhaust fan 4 draws the air in the cavity into the heater 5, which is heated by the electric heating grid plate and then discharged from the nozzle of the jet ring pipe 6, which can dry the residual liquid on the twisted cable core without affecting the subsequent processing steps. The heat generated by friction is extracted by the exhaust fan 4, which further cools and dissipates the heat of the sizing mold.

Claims

1. A sizing die cooling and lubricating device, comprising a sizing die (2) and a guide frame (1) arranged on one side of a stranding machine outlet, characterized in that: The invention also comprises a cooling mechanism arranged on the guide frame (1), wherein the guide frame (1) is provided with a through hole extending transversely therethrough, wherein a sizing die (2) for shaping the wire core is provided inside the through hole, wherein a cavity (3) is formed between the outer surface of the sizing die (2) and the inner wall of the through hole, wherein the cooling mechanism comprises a spraying component acting on one side of the through hole and a drying component acting on the other side of the through hole and connected to the cavity (3), wherein a folding edge is provided at one end of the sizing die (2) and the folding edge is connected to the frame body of the guide frame (1) located on the other side of the through hole.

2. A sizing die cooling and lubrication device according to claim 1, characterized in that: The drying assembly comprises an exhaust fan (4), a heater (5) and an air jet ring tube (6); the exhaust fan (4) and the heater (5) are both fixedly mounted on the guide frame (1); an air inlet end of the exhaust fan (4) passes through the guide frame (1) and is connected to the cavity (3); an air outlet end of the exhaust fan (4) is connected to the air jet ring tube (6) through the heater (5); and the air jet ring tube (6) is disposed adjacent to the other side of the through hole and coaxially with the through hole.

3. A sizing die cooling and lubrication device according to claim 1, characterized in that: The spray assembly comprises a liquid storage tank (7), a water pump (8) and a liquid spraying annular pipe (9); the liquid storage tank (7) is arranged on the guide frame (1); the water pump (8) is fixedly mounted on the guide frame (1) and has a water inlet end connected to the liquid storage tank (7); and a water outlet end connected to the liquid spraying annular pipe (9) via a liquid guide pipe; the liquid spraying annular pipe (9) is arranged adjacent to one side of the through hole and coaxially with the through hole.

4. A sizing die cooling and lubrication device according to claim 1, characterized in that: The sizing die comprises a die sleeve (201) and a paralleling and shaping die set arranged inside the die sleeve (201); the paralleling and shaping die set comprises a paralleling die (202) arranged on one side of the die sleeve (201) close to the through hole and a sizing die (203) close to the other side of the through hole; the paralleling die (202) and the sizing die (203) are coaxially arranged and fixedly connected; one end of the die sleeve (201) is provided with a folding edge and the folding edge is connected to a frame body of a guide frame (1) located on the other side of the through hole; one end of the sizing die (203) extends to the outside of the die sleeve (201) and is connected to the folding edge.

5. A sizing die cooling and lubrication device according to claim 1, characterized in that: The diameters of the air injection annular tube (6) and the liquid injection annular tube (9) are both larger than the diameter of the through hole.

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