Pay-off device for cable extruder

Abstract

The utility model discloses a pay-off device for a cable extruder. The pay-off device comprises a double-station pay-off mechanism, a cable storage rack and a pneumatic cable pressing mechanism, the double-station pay-off mechanism is provided with two pay-off stations which are arranged in parallel, each pay-off station can contain an I-shaped wire coil, and the pay-off stations are provided with pay-off motors for driving the I-shaped wire coils to rotate; the wire storage frame comprises a door-shaped frame body; the door-shaped frame body is erected above the double-station pay-off mechanism; a first wire storage wheel and a second wire storage wheel are arranged on the door-shaped frame body, a horizontally-arranged guide rail is arranged at the top of the door-shaped frame body, and the second wire storage wheel is installed on the guide rail in a sliding mode; the pneumatic wire pressing mechanism is provided with a wire pressing channel for a cable to pass through, and a liftable pneumatic pressing block is arranged above the wire pressing channel. Through cooperation of the double-station pay-off mechanism and the pneumatic line pressing mechanism, online line changing operation is achieved, production line interruption caused by traditional shutdown line changing is thoroughly eliminated, and production efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of cable processing technology, and in particular to a cable feeding device for a cable extruder. Background Technology

[0002] Cable extruders typically have a wire storage rack at the unwinding end. The main function of this rack during cable production is to provide stable tension, ensuring a smooth and continuous transition of the wire during processing and preventing twisting, bending, or loosening. By adjusting the tension, the rack maintains stress balance between the conductor and core during stranding and cabling, thus ensuring consistent cable quality.

[0003] Currently, most cable feeding terminals use vertical cable storage racks. While these racks allow for tension adjustment, their storage capacity is limited and cannot cover the time required for cable replacement operations. When cable replacement or reconnection is needed, a shutdown is still required. This shutdown not only affects the efficiency of the cable extruder but also disrupts the current extrusion process, causing a section of cable to remain in the extrusion process for an excessively long time, thus impacting cable quality. Utility Model Content

[0004] To address the aforementioned problems, this invention provides a cable feeding device for a cable extruder, which allows for cable changing and connection without shutting down the machine, thereby improving cable production efficiency and quality.

[0005] Therefore, the technical solution of this utility model is: a wire feeding device for a cable extruder, comprising a dual-station wire feeding mechanism, a wire storage rack, and a pneumatic wire pressing mechanism;

[0006] The dual-station wire feeding mechanism has two wire feeding stations arranged side by side. Each wire feeding station can accommodate one H-beam wire reel, and the wire feeding station is equipped with a wire feeding motor that drives the H-beam wire reel to rotate.

[0007] The wire storage rack includes a portal frame body, which is mounted above the dual-station wire feeding mechanism. The portal frame body is equipped with a first wire storage wheel and a second wire storage wheel. The top of the portal frame body is equipped with a horizontally arranged guide rail, and the second wire storage wheel is slidably mounted on the guide rail.

[0008] The pneumatic wire pressing mechanism is provided with a wire pressing channel for the cable to pass through, and a liftable pneumatic pressing block is provided above the wire pressing channel.

[0009] The cable on the H-shaped wire reel passes through the wire pressing channel and then enters the first wire storage wheel. After being repeatedly wound between the first and second wire storage wheels, the cable exits from the first wire storage wheel.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the dual-station wire feeding mechanism is provided with a vertically arranged first guide wheel, located between the two wire feeding stations; a guide slope is provided on the side of the wire feeding station, and a detachable fence is provided above the guide slope.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: the pneumatic wire pressing mechanism further includes a column, a rectangular mounting frame is provided above the column, the middle of the rectangular mounting frame is a wire pressing channel, a wire pressing cylinder is installed above the rectangular mounting frame, the cylinder rod of the wire pressing cylinder extends into the wire pressing channel, and a pneumatic pressing block is installed on the cylinder rod of the wire pressing cylinder.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme: both the first and second wire storage reels are provided with 9 to 11 wire grooves.

[0013] Based on the above scheme and as a preferred embodiment of the above scheme: the first wire storage wheel is rotatably mounted on the first mounting base, the first mounting base is fixed on the top crossbeam of the portal frame, and is located at the end away from the dual-station wire feeding mechanism.

[0014] Based on the above scheme and as a preferred embodiment of the above scheme: the second wire storage wheel is rotatably mounted on the second mounting base, the back of the second mounting base is U-shaped, fitted on the guide rail, and slides with the guide rail through internal rollers.

[0015] Based on the above scheme and as a preferred embodiment: a stranding assembly is provided above the top crossbeam of the portal frame. The stranding assembly includes a stranding motor, a stranding wheel, a wire rope, and several guide rollers. The wire rope is wound around the guide rollers and the stranding wheel, and the second mounting seat of the second wire storage wheel is fixed on the wire rope. The stranding motor drives the stranding wheel to rotate, and the stranding wheel drives the second wire storage wheel to move along the guide rail through the wire rope, adjusting the distance between it and the first wire storage wheel.

[0016] Based on the above scheme and as a preferred embodiment of the above scheme: the guide rail is provided with spring buffers at both ends, which work in conjunction with the second mounting base.

[0017] Based on the above scheme and as a preferred embodiment of the above scheme: a support frame is also provided on the top crossbeam of the portal frame, located below the guide rail and the second wire storage wheel.

[0018] In use, the fully loaded H-shaped wire reels are loaded into two identical wire feeding stations. The wire is taken from one of the H-shaped wire reels, first passed through the wire pressing channel of the pneumatic wire pressing assembly and the first reversing wheel, then passed upward through the first wire storage wheel, and then passed through the second wire storage wheel (at this time the distance between the second wire storage wheel and the first wire storage wheel is the largest) and then wound around the first wire storage wheel again. This winding between the first wire storage wheel and the second wire storage wheel is repeated many times to achieve the maximum wire storage capacity. Finally, the wire is passed out from the first wire storage wheel to the second reversing wheel and then extruded through the second reversing wheel to the extrusion station.

[0019] When a spool of cable is finished, the pressing cylinder on the pressing channel is vented, and the cylinder rod drives the pneumatic pressing block to move down and press the cable. At this time, the cable storage rack begins to release the stored cable. The operator can quickly connect the cable head of the H-shaped cable spool to the old cable head and start the second cable release station, realizing cable / spool change without stopping the machine and ensuring work efficiency.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. Through the coordinated operation of the dual-station wire feeding mechanism and the pneumatic wire pressing mechanism, online wire changing operation is achieved. When the wire reel at one station is exhausted, the pneumatic clamping block can instantly fix the cable position, the wire storage rack releases the pre-stored cable to maintain production continuity, and the other station simultaneously starts a new wire reel to continue feeding, completely eliminating the production line interruption caused by traditional downtime for wire changing, and greatly improving production efficiency.

[0022] 2. An adjustable wire storage wheel design is adopted, in which a dynamic wire storage space is formed by the second wire storage wheel that slides along the guide rail and the fixed first wire storage wheel; the cable is wound in multiple layers between 9-11 turns of wire groove, and with the spacing adjustment function driven by the stranded wire assembly, the wire storage capacity is greatly improved compared with the traditional vertical wire storage rack, which can completely cover the wire replacement operation time.

[0023] 3. The wire storage reel assembly is equipped with a spring buffer and closed-loop control of the stranding motor to absorb fluctuating stress in the wire in real time. When the wire storage rack releases the wire during the wire changing process, the second wire storage reel moves back to compensate for the tension change, ensuring that the wire is always in a state of stress balance.

[0024] 4. A wire-pressing cylinder is used to drive the wire-pressing block to pneumatically crimp the cable. The crimping response speed of the pneumatic wire-pressing block is much faster than manual crimping, making subsequent wire connection easier.

[0025] 5. Set up a guide ramp on the side of the wire laying station, along with a detachable fence, to facilitate the removal of empty H-beam wire reels and the replacement with full H-beam wire reels. After the wire reels are installed, use the fence to form a physical isolation zone to effectively avoid safety hazards caused by workers accidentally touching the wire reels while working. Attached Figure Description

[0026] Figure 1This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0028] Figure 3 This is a structural schematic diagram of the present invention (from another angle);

[0029] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0030] Figure 5 This is a front view of the structure of this utility model;

[0031] Figure 6 This is a schematic diagram of the dual-station wire feeding mechanism of this utility model;

[0032] Figure 7 This is a schematic diagram of the pneumatic wire pressing mechanism of this utility model.

[0033] The components in the diagram are labeled as follows: 1. Dual-station wire feeding mechanism; 11. Wire feeding station; 12. Wire feeding motor; 13. Insertion frame; 14. First guide wheel; 15. Guide slope; 16. Fence; 2. Wire storage rack; 21. Portal frame; 22. Crossbeam; 23. Guide rail; 24. First wire storage wheel; 241. First mounting base; 242. Second wire storage wheel; 25. Second wire groove; 251. Second mounting base; 252. Roller; 253. Stranding assembly; 26. Stranding motor; 261. Stranding wheel; 262. Wire rope; 263. Guide roller; 264. Spring buffer; 27. Sleeve; 271. Buffer rod; 272. Spring; 273. Support frame; 28. Pneumatic wire pressing mechanism; 39. Column; 31. Rectangular mounting frame; 32. Wire pressing channel; 33. Wire pressing cylinder; 34. Pneumatic pressing block; 35. I-beam wire reel; 4. First reversing wheel; 5. Second reversing wheel; 6. Detailed Implementation

[0034] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0036] See the attached drawings. The cable extruder feeding device described in this embodiment includes a dual-station feeding mechanism 1, a wire storage rack 2, and a pneumatic wire pressing mechanism 3.

[0037] The dual-station wire feeding mechanism 1 has two parallel wire feeding stations 11, each capable of accommodating a wire reel 4. Each station 11 is equipped with a wire feeding motor 12 that drives the wire reel 4 to rotate. The output shaft of the motor 12 has a bracket 13 that can be inserted into the insertion hole of the wire reel 4, allowing the motor 12 to drive the wire reel 4 to rotate and feed wire. The dual-station wire feeding mechanism 1 also has a vertically positioned first guide wheel 14 located between the two stations 11. The cable of the wire reel 4 can pass around the first guide wheel 14 for reversing and guiding the cable.

[0038] The axes of the H-beam reels 4 on the two wire-laying stations 11 are perpendicular to the winding frame 2. A guide ramp 15 is provided on the side of each of the two wire-laying stations 11, and a detachable fence 16 is provided above the guide ramp 15. The guide ramp 15, together with the detachable fence 16, facilitates the removal of empty H-beam reels 4 and the replacement with full H-beam reels 4. After the reels are installed, the fence 16 forms a physical isolation zone, effectively avoiding safety hazards caused by workers accidentally touching the reels while working.

[0039] The cable storage rack 2 includes a 6-meter-long portal frame 21, which is mounted above the dual-station cable feeding mechanism 1. The top of the portal frame 21 is provided with a crossbeam 22, and a horizontally arranged guide rail 23 is provided at the crossbeam 22. The crossbeam 22 is provided with a first cable storage wheel 24 and a second cable storage wheel 25. The first cable storage wheel 24 is provided with 11 circles of first cable grooves 241, and the second cable storage wheel 25 is provided with 10 circles of second cable grooves 251. Together, they can store more than 110 meters of cable.

[0040] The first wire storage wheel 24 is rotatably mounted on the first mounting base 242, which is fixed to the top crossbeam 22 of the portal frame 21 and located at the end away from the dual-station wire feeding mechanism 1. The second wire storage wheel 25 is rotatably mounted on the second mounting base 252, which has a U-shaped back and is fitted onto the guide rail 23, and slides with the guide rail 23 through an internal roller 253.

[0041] A stranding assembly 26 is provided above the top crossbeam 22 of the portal frame 21. The stranding assembly includes a stranding motor 261, a stranding wheel 262, a wire rope 263, and several guide rollers 264. The wire rope 263 is wound around the guide rollers 264 and the stranding wheel 262 and passes through the guide rail 23. The second mounting seat 252 of the second wire storage wheel 25 is fixed on the wire rope 263. The stranding motor 261 drives the stranding wheel 262 to rotate. The rotation of the stranding wheel 262 can drive the wire rope 263 to move, and through the wire rope 263, it drives the second wire storage wheel 25 to move along the guide rail 23, adjusting the distance between it and the first wire storage wheel 24.

[0042] The guide rail 23 is equipped with spring buffers 27 at both ends, which cooperate with the second mounting base 252. The spring buffers 27 are horizontally arranged and include a sleeve 271. A buffer rod 272 is installed inside the sleeve, and a spring 273 is fitted on the buffer rod 272. One end of the spring 273 abuts against the head of the buffer rod 272, and the other end abuts against the sleeve 271. A limiting nut is provided at the rear end of the buffer rod 272 to prevent the buffer rod 272 from disengaging from the sleeve 271. When the wire rope 263 drives the second wire storage wheel 25 and the second mounting base 252 to the end of the guide rail 23, the second mounting base 252 abuts against the end of the buffer rod 272, which can push the buffer rod 272 backward, compressing the spring 273, avoiding rigid collision and ensuring the movement stability of the second wire storage wheel 25.

[0043] A support frame 28 can be selectively installed on the top crossbeam 22 of the portal frame 21 (it can be installed according to the usage requirements, or it can be omitted), located below the guide rail 23 and the second cable storage wheel 25; the support frame 28 can support the drooping cable during the initial winding stage (at the beginning of the equipment, the cable needs to be manually wound according to the winding sequence) to prevent the cable from hanging down and interfering with the worker's movement.

[0044] The pneumatic wire pressing mechanism 3 includes a column 31, a rectangular mounting frame 32 above the column 31, a wire pressing channel 33 in the middle of the rectangular mounting frame 32 for the cable to pass through, a wire pressing cylinder 34 installed above the rectangular mounting frame 32, the cylinder rod of the wire pressing cylinder 34 extending into the wire pressing channel 33, and a pneumatic pressing block 35 installed on the cylinder rod of the wire pressing cylinder 34. The pneumatic pressing block 35 is located above the wire pressing channel 33 and can press down the cable under the action of the wire pressing cylinder 34, which facilitates the connection of the cable head when changing the cable.

[0045] In use, the fully loaded H-shaped wire reels 4 are loaded into two identical wire feeding stations 11. The cable from one of the H-shaped wire reels 4 is taken, first passed through the first guide wheel 14, then enters the wire pressing channel 33 of the pneumatic wire pressing assembly 3, and after being reversed by the first reversing wheel 5 (reversing wheels can be added or removed according to the actual route to facilitate cable movement), it passes upward through the first wire storage wheel 24, and then passes through the second wire storage wheel 25 (at this time, the distance between the second wire storage wheel and the first wire storage wheel is the largest) and then winds around the first wire storage wheel 24 again. This process is repeated many times between the first wire groove of the first wire storage wheel 24 and the second wire groove of the second wire storage wheel 25 to achieve the maximum wire storage capacity. Finally, the cable exits from the first wire storage wheel 24 to the second reversing wheel 6 and is extruded through the second reversing wheel 6.

[0046] When a spool of cable is finished, the pressing cylinder 34 on the pressing channel 33 is vented, and the cylinder rod drives the pneumatic pressing block 35 to move down and press the cable. At this time, the cable storage rack 2 begins to release the stored cable. The operator can quickly connect the cable head of the new spool of cable 4 with the old cable head and start the second cable release station, realizing cable / spool change without stopping the machine and ensuring work efficiency.

[0047] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A pay-off device for a cable extruder, characterized in that: The double-position pay-off mechanism, the cable storage rack and the pneumatic cable pressing mechanism are provided. The double-position pay-off mechanism is provided with two parallel pay-off positions, each of which can accommodate an I-shaped cable reel, and a pay-off motor is arranged on the pay-off position to drive the I-shaped cable reel to rotate. The cable storage rack comprises a door-shaped frame body, which is arranged above the double-position pay-off mechanism. The pneumatic cable pressing mechanism is provided with a cable pressing channel through which the cable passes, and a liftable pneumatic pressing block is arranged above the cable pressing channel. The cable on the I-shaped cable reel passes through the cable pressing channel and then enters the first cable storage reel, and then repeatedly winds between the first cable storage reel and the second cable storage reel, and then is discharged from the first cable storage reel.

2. A cable pay-off device for a cable extruder as claimed in claim 1, characterized in that: The double-position pay-off mechanism is provided with a first vertical guide wheel arranged between the two pay-off positions.

3. A cable pay-off device for a cable extruder as claimed in claim 1, characterized in that: The pneumatic cable pressing mechanism further comprises a stand, a rectangular mounting frame is arranged above the stand, the rectangular mounting frame is provided with the cable pressing channel in the middle, a cable pressing cylinder is arranged above the rectangular mounting frame, the cylinder rod of the cable pressing cylinder extends into the cable pressing channel, and the pneumatic pressing block is arranged on the cylinder rod of the cable pressing cylinder.

4. A cable pay-off device for a cable extruder as claimed in claim 1, characterized in that: The first cable storage reel and the second cable storage reel are each provided with 9-11 wire grooves.

5. A cable pay-off device for a cable extruder as claimed in claim 1, characterized in that: The first cable storage reel is rotatably arranged on the first mounting seat, the first mounting seat is fixed on the top beam of the door-shaped frame body, and is located away from the double-position pay-off mechanism.

6. A cable pay-off device for a cable extruder as claimed in claim 5, characterized in that: The second cable storage reel is rotatably arranged on the second mounting seat, the back of the second mounting seat is in the shape of a Chinese character, is sleeved on the guide rail, and is slidably connected to the guide rail through the internal rollers.

7. A cable pay-off device for a cable extruder as claimed in claim 6, characterized in that: A cable twisting assembly is arranged above the top beam of the door-shaped frame body, and the cable twisting assembly comprises a cable twisting motor, a cable twisting reel, a steel wire rope and a plurality of guide rollers.

8. A cable pay-off device for a cable extruder as claimed in claim 7, characterized in that: The guide rail is provided with spring buffers at both ends, which work with the second mounting seat.

9. A cable pay-off device for a cable extruder as claimed in claim 1, characterized in that: The top beam of the door-shaped frame body is further provided with a support frame, which is located below the guide rail and the second cable storage reel.

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