Cable sheath joint mold locking structure

Abstract

The utility model relates to a cable sheath joint mold locking structure, which comprises a melting machine, an inner machine head and an outer machine head which are communicated in front of the melting machine, a jacket which is arranged in front of the melting machine and is used for connecting the inner machine head and the outer machine head, and a locking mechanism and a linkage mechanism which are movably connected to the front surface of the melting machine and are used for moving the jacket, the locking mechanism and the linkage mechanism are respectively provided with a first screw rod and a second screw rod, the first screw rod is in transmission connection with the second screw rod, the end part of the first screw rod is connected with a driving mechanism, the two jackets are respectively positioned on the two sides of the outer machine head, and the jacking mechanism is arranged on the side of the outer machine head. The upper end and the lower end of each jacket are connected with screw heads which are in threaded connection with the first screw rod and the second screw rod; by means of the structure, the inner machine head and the outer machine head can be rapidly disassembled and assembled, a fusion machine connector blocked by a producer can be conveniently maintained, and a mold can be conveniently replaced and adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cable sheath joint lock die structure. BACKGROUND

[0002] In the cable production process, the outer surface of the electric wire or signal wire is generally wrapped with insulating rubber, and the electric wire is generally passed through a die, and then wrapped with molten insulating plastic outside the electric wire through the die to prepare the cable. However, due to the problem of the melting machine or the different diameters of the cable, the inner head and the outer head of the front surface of the melting machine need to be cleaned and maintained, or the die installed outside the outer head needs to be replaced and adjusted. However, the inner head and the outer head of the conventional melting machine are generally fixed by simple bolts, and the die is directly fixed on the outer head by threads. The connection between the die, the inner head and the outer head is simple and crude, which not only easily causes the leakage of molten plastic liquid, but also requires multiple workers to cooperate to manually disassemble and assemble when replacing and adjusting. Moreover, it takes more than half a day to maintain or replace once, which is time-consuming and labor-consuming, and has low work efficiency, and affects the production of the cable. SUMMARY

[0003] The utility model mainly solves the technical problems existing in the prior art, and provides a cable sheath joint lock die structure which can be automatically disassembled, maintained and assembled, effectively improves the disassembly and assembly convenience, reduces the labor intensity of disassembly and assembly production.

[0004] The utility model relates to a cable sheath joint lock die structure, including the melting machine, and the inner head and the outer head who links in the front of melting machine, and set up in the front of melting machine for connecting the inner head and the outer head's clamping cover, and the locking mechanism and the linkage mechanism who are used for moving the clamping cover and are movably connected in the front surface of melting machine, and set up in the side of melting machine for separating the outer head's jacking mechanism, the locking mechanism includes with the first lead screw who moves the connection of melting machine, the linkage mechanism includes with the second lead screw who moves the connection of melting machine, transmission connection between the first lead screw and the second lead screw, and the end of first lead screw is connected with drive mechanism, the clamping cover is provided with two and is located the both sides of outer head respectively, and the upper and lower ends of each clamping cover are connected with the screw head who is connected with the first lead screw and the second lead screw respectively, the jacking mechanism includes the support who is connected with melting machine, the central movable connection of support has the connecting rod who is connected with outer head, the side of melting machine is connected with the hydraulic cylinder for driving the rotation of connecting rod.

[0005] As preferred, the side of the melting machine is provided with a cylinder groove, the hydraulic cylinder is movably connected in the cylinder groove, the central of the connecting rod is movably connected with a rotating shaft, the piston rod of the hydraulic cylinder is connected with a jack connected with the rotating shaft, so that the hydraulic cylinder can rotate in the cylinder groove, and the hydraulic cylinder drives the connecting rod to rotate through the rotating shaft by the lifting of the jack, so as to make the connecting rod rotate around the support.

[0006] As preferred, the connecting rod is L-shaped structure and located in the center of the support, and the rear of the connecting rod is connected with a cross rod, the central of the rotating shaft is connected with a shaft sleeve connected with the top rod, the rotating angle of the connecting rod is limited by the cross rod at the rear of the connecting rod, and the shaft sleeve is used to facilitate the rotation of the rotating shaft at the end of the top rod, thereby facilitating the conversion of the hydraulic cylinder jacking into the rotation of the connecting rod.

[0007] As preferred, the central of the clamping sleeve is provided with a clamping groove, the clamping groove is V-shaped structure, and the angle range a of the clamping groove is between 15 degrees and 25 degrees, so that when the two clamping sleeves are close to each other, the disc on the outside of the inner and outer machine heads can be embedded into the clamping groove as much as possible to increase the close-fitting tightness.

[0008] As preferred, the inner and outer machine heads are provided with a material cavity, and the material cavity is a conical structure, the outer surface of the inner and outer machine heads is connected with a disc, and the disc on the outer surface of the inner machine head and the disc on the outer surface of the outer machine head are close-fitted and located in the clamping groove, and the conical structure of the material cavity facilitates the separation of the inner and outer machine heads, avoiding the problem that the plastic material melted by the melting machine is solidified in the material cavity and cannot be taken out and maintained, and the clamping groove facilitates the clamping and fastening of the discs on the outer sides of the inner and outer machine heads, so as to increase the firmness and stability of the inner and outer machine heads clamped and close-fitted by the clamping sleeve.

[0009] As preferred, the front surface of the outer machine head is connected with a screw cylinder, the front surface of the screw cylinder is connected with a plug cylinder in communication with the material cavity, and the outer surface of the screw cylinder is provided with external threads, so that the mold can be threadedly connected with the external threads on the outer surface of the screw cylinder, and the plug cylinder is used to guide the molten material into the connected mold.

[0010] As preferred, the front surface of the screw cylinder is provided with a groove, the groove is arranged around the outside of the plug cylinder, the front surface of the outer machine head is connected with a convex strip, the convex strip is arranged around the outside of the screw cylinder, and the convex strip and the groove are used for preventing the molten material from seeping, avoiding the molten material from seeping into the external threads to increase the difficulty of disassembling the mold.

[0011] As preferred, the central part of the first screw rod and the second screw rod are movably connected with an axle seat connected with the melting machine, and the central part of the first screw rod and the second screw rod are connected with a limiting block, the end part of the first screw rod and the second screw rod are respectively connected with a first sprocket and a second sprocket, the outside of the first sprocket and the second sprocket is sleeved with a chain, the other end of the first screw rod is connected with a bevel gear in transmission connection with a driving mechanism, so that the rotation of the first screw rod can drive the second sprocket to rotate through the cooperation of the first sprocket and the chain, and then drive the second screw rod to rotate synchronously through the second sprocket, so as to facilitate the synchronous rotation of the first screw rod and the second screw rod to drive the screw head engaged with the first screw rod and the second screw rod to move horizontally, and the limiting block is arranged to limit the movement stroke of the screw head, and the first screw rod and the second screw rod are bidirectional screw rods with opposite screw threads, so that the two clamps connected by the screw threads between the first screw rod and the second screw rod can be close to or away from each other.

[0012] As preferred, the side of the melting machine is connected with a reduction box, the bevel gear is arranged in the reduction box and is in transmission connection with the driving mechanism, and the driving mechanism is a servo motor, so that the driving mechanism adjusts the rotation speed and torque through the reduction box to drive the bevel gear to rotate, and the reduction box is a reduction gear box.

[0013] The utility model discloses a beneficial effect is: because the melting machine front is provided with the clamp for connecting the inner machine head and the outer machine head, and the front surface of the melting machine is movably connected with the locking mechanism and the linkage mechanism for moving the clamp, so that the two clamps are located at the two sides of the inner machine head and the outer machine head respectively, and the locking mechanism and the linkage mechanism are used for synchronously driving the two clamps to move close to or away from each other through the first screw rod and the second screw rod, so that when the two clamps move close to each other, the disc outside the inner machine head and the outer machine head can be embedded into the clamp groove as far as possible, and then the outer machine head is firmly fixed in front of the inner machine head through the clamp groove in the center of the clamp, so as to automatically dismount and install the outer machine head, and effectively improve the convenience and airtightness of the outer machine head connected to the front of the inner machine head, which is convenient for the producer to dismount and install the mold connected in front of the outer machine head; the outside of the outer machine head is connected with a connecting rod, and the other end of the connecting rod is movably connected with a support, and the side of the melting machine is movably connected with a hydraulic rod for driving the connecting rod to rotate, so as to drive the connecting rod to rotate around the support through the jacking of the hydraulic rod, and then facilitate the outer machine head to automatically separate from the inner machine head, which is convenient for the producer to separate and maintain the inner machine head and the outer machine head, so as to realize the automatic dismounting and maintenance between the outer machine head and the inner machine head, effectively improve the dismounting convenience, and avoid the labor intensity required by the manual dismounting and moving of the conventional outer machine head. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0015] Figure 1 The structure schematic diagram of the mold installed in the cable sheath joint locking mold structure of the present application;

[0016] Figure 2 The overall structure schematic diagram of the cable sheath joint locking mold structure of the present application;

[0017] Figure 3 The connection structure schematic diagram of the lifting mechanism in the present application; Figure 2

[0018] The connection structure schematic diagram of the locking mechanism and the linkage mechanism in the present application; Figure 4 Figure 2 The structure schematic diagram of the inner machine head and the outer machine head connected and fixed through the clamp sleeve in the present application.

[0019] Figure 5 Figure 2 The structure schematic diagram of the inner machine head and the outer machine head connected and fixed through the clamp sleeve in the present application. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present application will be described in detail below with reference to the drawings, so that the advantages and characteristics of the present application can be more easily understood by those skilled in the art, and the protection scope of the present application can be more clearly and definitely defined.

[0021] As Figures 1 to 5 ​​The cable sheath joint locking structure shown in the application comprises a melting machine 1, an inner machine head 61 and an outer machine head 6 connected in front of the melting machine 1, a clamping sleeve 5 arranged in front of the melting machine 1 to connect the inner machine head 61 and the outer machine head 6, a locking mechanism 3 and a linkage mechanism 4 movably connected to the front surface of the melting machine 1 to move the clamping sleeve 5, and a jacking mechanism 2 arranged on the side of the melting machine 1 to separate the outer machine head 6. The locking mechanism 3 comprises a first screw rod 32 movably connected to the melting machine 1, the linkage mechanism 4 comprises a second screw rod 41 movably connected to the melting machine 1, the first screw rod 32 and the second screw rod 41 are transmissionally connected, and the end of the first screw rod 32 is connected with a driving mechanism 31. The clamping sleeve 5 is arranged on both sides of the outer machine head 6, and the upper and lower ends of each clamping sleeve 5 are respectively connected with screw heads 51 which are threadedly connected with the first screw rod 32 and the second screw rod 41. The jacking mechanism 2 comprises a bracket 21 connected with the melting machine 1, and a connecting rod 24 movably connected with the outer machine head 6 in the center of the bracket 21. A hydraulic cylinder 22 is connected to the side of the melting machine 1 to drive the connecting rod 24 to rotate.

[0022] A cylinder groove 11 is arranged on the side of the melting machine 1, and the hydraulic cylinder 22 is movably connected in the cylinder groove 11. A rotating shaft 25 is movably connected in the center of the connecting rod 24. A jack rod 23 connected with the rotating shaft 25 is connected to the piston rod of the hydraulic cylinder 22, so that the hydraulic cylinder 22 can rotate in the cylinder groove 11. The hydraulic cylinder 22 drives the connecting rod 24 to rotate through the rotating shaft 25 by lifting the jack rod 23, so as to make the connecting rod 24 rotate around the bracket 21.

[0023] The connecting rod 24 is an L-shaped structure and is located in the center of the bracket 21. A cross rod 27 is connected to the rear of the connecting rod 24. An axle sleeve 26 connected with the jack rod 23 is connected to the center of the rotating shaft 25. The rotating angle of the connecting rod 24 is limited by the cross rod 27 at the rear of the connecting rod 24, and the rotating shaft 25 can rotate at the end of the jack rod 23 through the axle sleeve 26, so as to facilitate the rotation of the connecting rod 24 by the hydraulic cylinder 22.

[0024] A clamping groove 52 is arranged in the center of the clamping sleeve 5. The clamping groove 52 is a V-shaped structure, and the angle range a of the clamping groove 52 is between 15 degrees and 25 degrees. When the two clamping sleeves 5 approach each other, the disc 62 on the outer side of the inner machine head 61 and the outer machine head 6 can be embedded into the clamping groove 52 as much as possible to increase the close-fitting tightness.

[0025] The inner machine head 61 and the outer surface of the outer machine head 6 are both surrounded by a disc 62, and the disc 62 on the outer surface of the inner machine head 61 and the disc 62 on the outer surface of the outer machine head 6 are mutually attached and located in the clamping groove 52, and the conical structure of the material cavity 65 facilitates the separation of the inner machine head 61 and the outer machine head 6, avoiding the problem that the plastic liquid melted by the melting machine 1 solidifies in the material cavity 65 and cannot be taken out for maintenance, and the clamping groove 52 facilitates clamping and fastening of the disc 62 on the outer side of the inner machine head 61 and the outer machine head 6, so as to increase the firmness and stability of the clamping and attachment of the inner machine head 61 and the outer machine head 6 through the clamp sleeve 5.

[0026] The front surface of the outer machine head 6 is connected with a screw cylinder 63, the front surface of the screw cylinder 63 is connected with a plug cylinder 64 which is communicated with the material cavity 65, and the outer surface of the screw cylinder 63 is provided with external threads 631, so that the mold 7 can be threadedly connected with the external threads 631 on the outer surface of the screw cylinder 63, and the plug cylinder 64 is used to guide the melted liquid into the connected mold 7.

[0027] The front surface of the screw cylinder 64 is provided with a groove 632, which is arranged around the outside of the plug cylinder 64, and the front surface of the outer machine head 6 is connected with a convex strip 633, which is arranged around the outside of the screw cylinder 63. The groove 632 and the convex strip 633 prevent the melted liquid from permeating and isolating, avoiding the melted liquid from permeating into the external threads 631 and increasing the difficulty of disassembling the mold 7.

[0028] The central part of the first screw rod 32 and the second screw rod 41 is movably connected with an axle seat 45 connected with the melting machine 1, and the central part of the first screw rod 32 and the second screw rod 41 is connected with a limiting block 44, the end part of the first screw rod 32 and the second screw rod 41 is respectively connected with a first sprocket 33 and a second sprocket 42, the outside of the first sprocket 33 and the second sprocket 42 is sleeved with a chain 23, the other end of the first screw rod 32 is connected with a bevel gear 34 which is drivingly connected with a driving mechanism 31, so that the rotation of the first screw rod 32 can drive the second sprocket 42 to rotate through the cooperation of the first sprocket 33 and the chain 23, and then drive the second screw rod 41 to rotate synchronously through the second sprocket 42, so as to drive the screw head 51 engaged with the first screw rod 32 and the second screw rod 41 to move horizontally through the synchronous rotation of the first screw rod 32 and the second screw rod 41, and the limiting block 44 is arranged to limit the movement stroke of the screw head 51, the first screw rod 32 and the second screw rod 41 are bidirectional screw rods with opposite screw directions, so that the two clamp sleeves 5 connected by the screw head 51 between the first screw rod 32 and the second screw rod 41 can move closer or farther away from each other.

[0029] A reduction gearbox 35 is connected to the side of the melting machine 1. The bevel gear 34 is installed in the reduction gearbox 35 and is connected to the drive mechanism 31. The drive mechanism 31 is a servo motor. The speed and torque of the drive mechanism 31 are adjusted through the reduction gearbox 35 to drive the bevel gear 34 to rotate. The reduction gearbox 35 is a reduction gearbox.

[0030] The cable sheath connector locking structure allows the mold 7 to be threaded onto the outer head 6 via the external thread 631 on the outer surface of the outer head 6. The insert 64 at the front of the outer head 6 is embedded in the mold 7. The retaining strip (not labeled) and retaining groove (not labeled) on the mold 7 correspond to the groove 632 and protrusion 633 on the outer head 6, respectively, to ensure the airtightness of the mold 7 connected to the outer head 6. Furthermore, the material cavities 65 inside the inner head 61 and the outer head 6 are interconnected and both connected to the mold 7. The outer head 6 and the inner head 6... The outer discs 62 fit together, and the drive mechanism 31 drives the first lead screw 32 in the locking mechanism 3 to rotate through the reduction gearbox 35. The first lead screw 32 drives the second lead screw 41 in the linkage mechanism 4 to rotate through the cooperation of the first sprocket 33, chain 23 and second sprocket 42. Then, through the threaded connection between the first lead screw 32, the second lead screw 41 and the screw head 51, the rotation of the first lead screw 32 and the second lead screw 41 drives the screw head 51 to move laterally, thereby bringing the two jackets 5 on the outside of the outer unit head 6 closer together so that the inner unit head 6 can be clamped through the clamping groove 42. The inner head 61 and the outer head 6 are fitted together, so that the two jackets 5 are close together to connect the inner head 61 and the outer head 6. This allows the molten material from the melter 1 to be injected into the mold 7 through the material chamber 65 in the inner head 61 and the outer head 6 to perform injection molding of the insulation layer of the cable. When it is necessary to separate the inner head 61 and the outer head 6, the drive mechanism 31 can drive the first lead screw 32 to reverse through the reduction gearbox 35, so that the first lead screw 32 is driven by the first sprocket 33, the chain 23, and the second sprocket 42. The second lead screw 41 rotates synchronously in reverse, thereby causing the two sleeves 5 connected by the screw head 51 between the first lead screw 32 and the second lead screw 41 to move away from each other, thus loosening the fastening between the inner head 61 and the outer head 6. Then, the hydraulic cylinder 22 in the lifting mechanism 2 drives the push rod 23 to rise and fall, and the push rod 23 drives the connecting rod 24 to rotate along the bracket 21 through the rotating shaft 25, thereby separating the inner head 61 and the outer head 6 so that the producer can clean and maintain the material cavity 65, and also facilitate the producer to replace the mold 7 connected to the outside of the outer head 6.

[0031] The utility model discloses beneficial effect is: because the front of the melting machine is provided with the clamping sleeve for connecting the inner machine head and the outer machine head, and the front surface of the melting machine is movably connected with the locking mechanism and the linkage mechanism for moving the clamping sleeve, so that the two clamping sleeves are located at the two sides of the inner machine head and the outer machine head respectively, and the locking mechanism and the linkage mechanism are driven synchronously with the first lead screw and the second lead screw to make the two clamping sleeves approach each other or move away from each other, so that when the two clamping sleeves approach each other, the disc outside the inner machine head and the outer machine head can be embedded into the clamping groove as much as possible, and then the outer machine head is firmly fixed in front of the inner machine head through the clamping groove in the center of the clamping sleeve, so as to automatically disassemble and install the outer machine head, and effectively improve the convenience and airtightness of the outer machine head connected to the front of the inner machine head, which is convenient for the producer to disassemble and assemble the mold connected in front of the outer machine head; the outer side of the outer machine head is connected with a connecting rod, and the other end of the connecting rod is movably connected with a support, and a hydraulic rod for driving the connecting rod to rotate is movably connected on the side of the melting machine, so as to drive the connecting rod to rotate around the support through the jacking of the hydraulic rod, and then the outer machine head is automatically separated from the inner machine head, which is convenient for the producer to separate and maintain the inner machine head and the outer machine head, so that the inner machine head and the outer machine head can be automatically disassembled and maintained, the disassembly convenience is effectively improved, and the labor intensity required by the producer to manually disassemble and move the conventional outer machine head is avoided.

[0032] The above is only the specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any change or replacement without creative labor is covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be limited by the protection scope defined in the claims.

Claims

1. A cable jacket splice lock structure, characterized by: The utility model provides a melting machine, and the inner head and the outer head are communicated in front of the melting machine, the clamping sleeve is arranged in front of the melting melting machine to connect the inner head and the outer head, the locking mechanism and the linkage mechanism are movably connected on the front surface of the melting machine to move the clamping sleeve, the jacking mechanism is arranged on the side of the melting machine to separate the outer head, the locking mechanism comprises the first lead screw movably connected with the melting machine, the linkage mechanism comprises the second lead screw movably connected with the melting machine, the first lead screw and the second lead screw are transmission connected, and the end of the first lead screw is connected with the driving mechanism, the clamping sleeve is provided with two and is located on the both sides of the outer head respectively, and the upper and lower ends of each clamping sleeve are connected with the screw head threaded with the first lead screw and the second lead screw respectively, the jacking mechanism comprises the support connected with the melting machine, the connecting rod connected with the outer head is movably connected in the center of the support, and the hydraulic cylinder for driving the connecting rod rotation is connected on the side of the melting machine.

2. A cable jacket splice mold structure as in claim 1, wherein: The side of the melting machine is provided with a cylinder groove, the hydraulic cylinder is movably connected in the cylinder groove, the connecting rod is movably connected with the rotating shaft in the center, and the piston rod of the hydraulic cylinder is connected with the jack connected with the rotating shaft.

3. A cable jacket splice mold structure as in claim 2, wherein: The connecting rod is L-shaped structure and located in the center of the support, and the rear of the connecting rod is connected with the cross bar, the rotating shaft is connected with the shaft sleeve connected with the jack in the center.

4. A cable jacket splice mold structure as in claim 1, wherein: The center of the clamping sleeve is provided with a clamping groove, the clamping groove is V-shaped structure, and the angle range a of the clamping groove is between 15 degrees and 25 degrees.

5. A cable jacket splice mold structure as in claim 4, wherein: The inner head and the outer head are provided with the material cavity in the inside, and the material cavity is conical structure, the outer surface of the inner head and the outer head is connected with the disc, and the disc of the outer surface of the inner head and the disc of the outer surface of the outer head are mutually pasted and located in the clamping groove.

6. A cable jacket splice mold structure as in claim 5, wherein: The front surface of the outer head is connected with the screw cylinder, the front surface of the screw cylinder is connected with the plug cylinder communicated with the material cavity, and the outer surface of the screw cylinder is provided with external thread.

7. A cable jacket splice mold structure as in claim 6, wherein: The front surface of the screw cylinder is provided with the groove, the groove is arranged around the outside of the plug cylinder, the front surface of the outer head is connected with the convex strip, and the convex strip is arranged around the outside of the screw cylinder.

8. A cable jacket splice mold structure as in claim 1, wherein: The center of the first lead screw and the second lead screw is movably connected with the shaft seat connected with the melting machine, the center of the first lead screw and the second lead screw is connected with the limiting block, the end of the first lead screw and the second lead screw is connected with the first sprocket and the second sprocket respectively, the outside of the first sprocket and the second sprocket is sleeved with the chain, and the other end of the first lead screw is connected with the bevel gear transmission connected with the driving mechanism.

9. A cable jacket splice mold structure as in claim 8, wherein: The side of the melting machine is connected with the speed reducer, the bevel gear is arranged in the speed reducer and is transmission connected with the driving mechanism, and the driving mechanism is servo motor.

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