Full-automatic continuous cold pilger mill and method

Abstract

The full-automatic continuous cold pilger mill comprises a cold pilger body, a lathe bed, a feeding module, a core rod chuck module, a feeding module and an automatic feeding module, one end of the lathe bed is connected with the cold pilger body, and the cold pilger body is used for conducting cold rolling on a steel pipe; the feeding module is used for feeding a steel pipe into the cold-rolling mill body in an intermittent feeding mode, the core rod chuck module is provided with a core rod, the core rod penetrates through the core rod chuck module, the feeding module and the cold-rolling mill body, the feeding module is used for feeding the steel pipe into the core rod chuck module, and the automatic feeding module is used for automatically pushing the steel pipe into the feeding module. Through the design of the automatic feeding module and the feeding module, blank steel pipes are fed into the feeding module through the automatic feeding module, then the blank steel pipes are continuously pushed into the cold-rolling mill body through the feeding module, continuous machining of the cold-rolling mill body is guaranteed, the downtime of the cold-rolling mill body is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of cold rolling tube mills, and in particular relates to a full-automatic continuous cold rolling tube mill and a method. Background Art

[0002] With the rapid development of the national economy and the continuous expansion of new technology fields, the application scope of cold-rolled pipes is becoming wider and wider, and the requirements for their variety and quality are becoming higher and higher. Especially with the development of industries such as aviation, rockets, automobiles, and shipbuilding, the demand for various precision, thin-walled, and high-strength cold-rolled pipes is increasing. At present, the production of these pipes is mainly done by cold rolling pipe machines.

[0003] The cold rolling mill is a mechanical process equipment that uses a ring hole to cold roll rough pipes. The machine has good blanking performance and can also roll non-ferrous metal seamless pipes of ordinary precision. The biggest feature of the cold rolling mill is its high material utilization rate, and its precision and surface roughness are better than those of the cold drawing machine.

[0004] When loading materials, the existing cold rolling tube machine generally pushes a rough steel tube into the cold rolling mill body through the feeding module for cold rolling processing. After the processing of one rough steel tube is completed, it is necessary to place the second rough steel tube into the feeding module again, and then push it again to complete the loading work. Each time, the processing of the next steel tube can only be started after the processing of one steel tube is completed. Continuous processing cannot be achieved, which consumes a long time and has low production efficiency. It is not conducive to the production of the assembly line, and the production scale cannot be expanded, resulting in loss of economic benefits. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned technical problems existing in the prior art and to provide a fully automatic continuous cold rolling tube machine. Through the design of an automatic loading module and a feeding module, the blank steel tube is loaded into the feeding module by the automatic loading module, and then the blank steel tube is continuously pushed into the cold rolling mill body through the feeding module, thereby ensuring the continuous processing of the cold rolling mill body, reducing the downtime of the cold rolling mill body and increasing production efficiency.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A fully automatic continuous cold rolling tube mill, comprising

[0008] A cold rolling mill body, which is used to cold roll steel pipes;

[0009] The bed is arranged on one side of the cold rolling mill body, and one end of the bed is connected to the cold rolling mill body;

[0010] The invention is characterized in that it also includes:

[0011] A feeding module is installed on the bed and is used to feed the steel pipe into the cold rolling mill body in an intermittent feeding manner;

[0012] A core rod chuck module, which is arranged on one side of the feeding module, and is provided with a core rod, which passes through the core rod chuck module, the feeding module and the cold rolling mill body;

[0013] A feeding module, which is arranged on one side of the core rod chuck module and is used to feed the steel pipe into the core rod chuck module;

[0014] Automatic feeding module: The automatic feeding module is arranged on both sides of the feeding module, and the automatic feeding module is used to automatically push the steel pipe into the feeding module.

[0015] Through the design of automatic loading module and feeding module, the blank steel pipe is loaded into the feeding module by using the automatic loading module, and then the blank steel pipe is continuously pushed into the cold rolling mill body through the feeding module, so as to ensure the continuous processing of the cold rolling mill body, reduce the downtime of the cold rolling mill body and increase production efficiency.

[0016] Furthermore, the automatic feeding module includes a supporting base, a lifting mechanism and a guide sliding mechanism. The supporting base is stepped and is used to support the steel pipe. The lifting mechanism is installed on the supporting base. The lifting mechanism is used to lift the steel pipe to the top of the supporting base in sequence. The guide sliding mechanism is installed between the supporting base and the feeding module. The guide sliding mechanism is used to guide the steel pipe to fall into the feeding module.

[0017] Furthermore, the support base is provided with a first step, a second step and a third step, the heights of the first step, the second step and the third step are successively increased, the first step and the second step are inclined, an inclined surface is provided on the top of one side of the support base close to the guide sliding mechanism, and the second step is provided with a lifting surface;

[0018] The lifting mechanism includes a lifting frame and a lifting cylinder. The lifting frame is installed between two supporting bases. The lifting cylinder is connected to the lifting frame. The lifting cylinder is used to control the lifting of the lifting frame. The lifting frame is provided with a lifting plate. The lifting plate includes a first lifting plate and a second lifting plate. The tops of the first lifting plate and the second lifting plate are both inclined. The first lifting plate corresponds to the first step. The width of the second lifting plate is the same as the sum of the widths of the inclined surface, the third step and the lifting surface.

[0019] The guide sliding mechanism includes a mounting frame, an inclined plate, a first guide plate, a second guide plate and a guide cylinder. The inclined plate is installed on the top of the mounting frame, the first guide plate and the guide cylinder are installed on the inclined plate, the guide cylinder is connected to the second guide plate, and the guide cylinder is used to control the extension and retraction of the second guide plate.

[0020] Furthermore, the feeding module includes a feeding table, a switching mechanism and a feeding mechanism. The feeding table is installed on the support seat through the switching mechanism. The feeding table is provided with a first slide groove and a second slide groove. The first slide groove and the second slide groove are used to place the steel pipe. The switching mechanism is used to control the movement of the feeding table so that the first slide groove or the second slide groove is aligned with the core rod. Two feeding mechanisms are installed, and the two feeding mechanisms correspond to the first slide groove and the second slide groove. The feeding mechanism is used to feed the steel pipes in the first slide groove and the second slide groove into the core rod chuck module.

[0021] Furthermore, the switching mechanism includes a servo motor 1, a first driving wheel, a first driven wheel, a switching gear and a switching shaft. The first driving wheel is installed on the servo motor 1, and the first driven wheel is installed on the support seat. The first driving wheel is meshed with the first driven wheel. The switching gear is coaxially arranged with the first driven wheel. Two switching gears and two first driven wheels are correspondingly arranged. The switching shaft is arranged between the two switching gears. The switching gear is provided with a first tooth portion, and the switching shaft is provided with a second tooth portion. The first tooth portion is meshed with the second tooth portion. Both ends of the switching shaft are fixed to the bottom of the feed table through a first fixed seat. A sliding seat is provided on the support seat. The switching shaft is slidably installed on the sliding seat. The sliding seat is used to increase the stability of the movement of the switching shaft.

[0022] Furthermore, the feeding mechanism includes a second servo motor, a first threaded rod, a guide rod and a feeding plate. The second servo motor is connected to the first threaded rod. The first threaded rod and the guide rod are both fixed to the feeding table through a second fixed seat. The feeding plate is provided with a threaded hole and a sliding hole. The feeding plate is installed on the first threaded rod through the threaded hole. The feeding plate is installed on the guide rod through the sliding hole. The feeding plate is provided with a convex portion, which is used to push the steel pipe.

[0023] Further, the core rod chuck module includes a motor drive mechanism, a hydraulic mechanism and a claw mechanism, the motor drive mechanism is used to drive the card rotation mechanism to rotate, and the hydraulic mechanism is used to control the claw mechanism to clamp or loosen the core rod; the motor drive mechanism includes a servo motor three, a second driving wheel, a second driven wheel, a bevel gear and a reduction gear, the servo motor three is connected to the second driving wheel, the second driving wheel is meshed with the second driven wheel, the bevel gear is coaxially arranged with the second driven wheel, the reduction gear is installed on the claw mechanism, and the bevel gear is meshed with the reduction gear; the claw mechanism includes a feed pipe, the core rod is installed in the feed pipe, the reduction gear is installed on the feed pipe, a through hole is provided at the end of the feed pipe, a claw is installed in the through hole, an inclined portion is provided at the end of the claw away from the through hole, and the core rod is clamped or loosened by the claw;

[0024] The hydraulic mechanism includes a fixed frame, a hydraulic cylinder, a pushing frame and an extrusion ring. One end of the hydraulic cylinder is hinged to one end of the fixed frame, the other end of the hydraulic cylinder is hinged to the pushing frame, the pushing frame is hinged to the other end of the fixed frame, the extrusion ring is sleeved on the feeding pipe, the pushing frame is provided with a pushing member, the extrusion ring is provided with a pushing groove, the pushing member is located in the pushing groove, the extrusion ring is provided with a clamping groove corresponding to the clamping claw, and the clamping claw is clamped in the clamping groove.

[0025] Furthermore, the feeding module includes a power mechanism, a screw mechanism and a feeding trolley. The power mechanism is arranged at one end of the bed, the power mechanism is connected to the screw mechanism, the screw mechanism is installed on the bed, and the feeding trolley is installed on the screw mechanism. The movement of the screw mechanism is controlled by the power mechanism to make the feeding trolley move along the screw mechanism. The feeding trolley is used to push the steel pipe to move toward the cold rolling mill body.

[0026] Further, the power mechanism includes a servo motor four, a gear set and a connecting gear, the servo motor four is connected to the gear set, one end of the connecting gear is connected to the gear set, and the other end is connected to the screw mechanism, the gear set is driven to rotate by the servo motor four and the screw mechanism is driven to rotate by the connecting gear;

[0027] The screw mechanism comprises a second threaded rod, bearing seats are fixedly installed at both ends of the bed, the second threaded rod is rotatably installed on the bearing seat through bearings, and the feeding trolley is installed on the second threaded rod through a screw nut.

[0028] A method for using a fully automatic continuous cold rolling tube mill, characterized by comprising the following steps:

[0029] Step 1: Automatically feed the steel pipe to the feeding table of the feeding module through the automatic feeding module;

[0030] (1) First, the feed table is controlled to move by a switching mechanism so that the first chute or the second chute on the feed table corresponds to the automatic feeding module on one side;

[0031] (2) Then, the steel pipe located on the first step is sequentially lifted to the second step and the third step by the lifting mechanism, and when lifting to the third step, only one steel pipe is lifted, and then the steel pipe is further lifted to the top of the support base, and falls into the guide sliding mechanism through the inclined surface;

[0032] (3) The guide sliding mechanism controls the extension and retraction of the second guide plate through the guide cylinder, so that the second guide plate corresponds to the first slide groove or the second slide groove. After the steel pipe is lifted to the top of the support base, it falls onto the first guide plate through the inclined surface, and then falls into the first slide groove or the second slide groove through the second guide plate;

[0033] Step 2: Push the steel pipe located in the feed table into the cold rolling mill body through the feeding mechanism by the feeding module;

[0034] (1) After the steel pipe falls into the first chute or the second chute, the feed table is moved again by the switching mechanism so that the chute of the steel pipe on the feed table corresponds to the core rod chuck module, and at this time, the other chute corresponds to the automatic feeding module on the other side;

[0035] (2) Then the feeding mechanism controls the feeding plate to push the steel pipe to move, and push the steel pipe into the cold rolling mill body;

[0036] (3) When the steel pipe in the chute on one side is pushed into the cold rolling mill body by the feeding mechanism, the other chute corresponds to the automatic feeding module on the other side. At this time, the automatic feeding module on the other side moves to lift the steel pipe to another chute on the feeding table. After the steel pipe in one of the chutes is pushed into the cold rolling mill body, the switching mechanism controls the movement of the feeding table to achieve continuous feeding;

[0037] Step three, after the steel pipe enters the cold rolling mill body, it is cold rolled, and the steel pipe is continuously and intermittently fed into the cold rolling mill body through the feeding module, and during the processing of the cold rolling mill body, the core rod chuck module clamps the core rod.

[0038] The present invention has the following beneficial effects due to the adoption of the above technical solution:

[0039] In the present invention, a first chute and a second chute are provided on the feed table, and the steel pipe falls into the first chute and the second chute through the automatic feeding module. During processing, the feed table is controlled to move through the switching mechanism so that one of the chute where the steel pipe is placed corresponds to the core rod chuck module and the steel pipe is pushed into the core rod chuck module through the feeding mechanism. At this time, the other chute corresponds to the automatic feeding module on the other side, and the steel pipe falls into the other chute through the automatic feeding module. After the steel pipe in one chute is completely pushed into the core rod chuck module, the feed table is controlled to move again through the switching mechanism so that the other chute corresponds to the core rod chuck module. This reciprocating process enables the cold rolling mill body to be continuously processed, thereby reducing the downtime of the cold rolling mill body and increasing production efficiency.

[0040] In the present invention, the supporting base is provided with a first step, a second step and a third step, and the heights of the first step, the second step and the third step are increased in sequence. The steel pipe is lifted from the first step to the second step and then from the second step to the third step in sequence through the lifting mechanism, and the width of the second lifting plate is the same as the sum of the widths of the inclined surface, the third step and the lifting surface, thereby ensuring that only one steel pipe is lifted when the steel pipe is lifted from the second step to the third step, thereby avoiding lifting too many steel pipes into the feeding module at one time. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present invention will be further described below in conjunction with the accompanying drawings:

[0042] Figure 1 It is a structural schematic diagram of a fully automatic continuous cold rolling tube mill and method of the present invention;

[0043] Figure 2 It is a structural schematic diagram of the automatic loading module and the feeding module in the present invention;

[0044] Figure 3 It is a structural schematic diagram of the support base and the lifting mechanism in the present invention;

[0045] Figure 4 For the present invention Figure 3 Side view of

[0046] Figure 5 It is a structural schematic diagram of the guide sliding mechanism in the present invention;

[0047] Figure 6 It is a structural schematic diagram of the feeding module in the present invention;

[0048] Figure 7 It is a structural schematic diagram of the feeding platform in the present invention;

[0049] Figure 8 It is a structural schematic diagram of the switching mechanism in the present invention;

[0050] Fig. 9 It is a structural schematic diagram of the switching mechanism in the present invention;

[0051] Fig.10 It is a structural schematic diagram of the feeding mechanism in the present invention;

[0052] Fig.11 It is a structural schematic diagram of the core rod chuck module of the present invention;

[0053] Fig.12 For the present invention Fig.11 A top view of

[0054] Fig.13 For the present invention Fig.11 A cross-sectional view of

[0055] Fig.14 It is a structural schematic diagram of the feeding module and the vehicle body in the present invention;

[0056] Fig.15 For the present invention Fig.15 A partial enlarged view of the middle A;

[0057] Fig.16 For the present invention Fig.15 A partial enlarged view of point B in the middle.

[0058] In the figure: 10-cold rolling mill body; 11-bed;

[0059] 20-feeding module; 21-power mechanism; 211-servo motor four; 212-gear set; 213-connecting gear; 22-screw mechanism; 221-second threaded rod; 222-bearing seat; 23-feeding trolley; 231-screw nut; 30-core rod chuck module; 31-motor driving mechanism; 311-servo motor three; 312-second driving wheel; 313-second driven wheel; 314-conical gear; 315-reduction gear; 32-hydraulic mechanism; 321-fixed frame; 322-hydraulic cylinder; 323-pushing frame; 324-extrusion ring; 325-pushing member; 326-pushing groove; 327-claw groove; 33-claw mechanism; 331-feeding pipe; 332-through hole; 333-claw; 334-inclined part;

[0060] 40-feeding module; 41-feeding platform; 411-support seat; 412-first slide slot; 413-second slide slot; 42-switching mechanism; 421-servo motor 1; 422-first driving wheel; 423-first driven wheel; 424-switching gear; 425-switching shaft; 426-first tooth portion; 427-second tooth portion; 428-first fixed seat; 429-sliding seat; 43-feeding mechanism; 431-servo motor 2; 432-first threaded rod; 433-guide rod; 434-feeding plate; 435-second fixed seat; 436-threaded hole; 437-sliding hole; 438-convex portion;

[0061] 50-automatic feeding module; 51-support base; 511-first step; 512-second step; 513-third step; 514-inclined surface; 515-lifting surface; 52-lifting mechanism; 521-lifting frame; 522-lifting cylinder; 523-first lifting plate; 524-second lifting plate; 53-guide sliding mechanism; 531-mounting frame; 532-inclined plate; 533-first guide plate; 534-second guide plate; 535-guide cylinder. DETAILED DESCRIPTION

[0062] like Figures 1 to 16As shown, a fully automatic continuous cold rolling mill of the present invention comprises a cold rolling mill body 10, a bed 11, a feeding module 20, a core rod chuck module 30, a feeding module 40 and an automatic loading module 50. The bed 11 is arranged on one side of the cold rolling mill body 10, and one end of the bed 11 is connected to the cold rolling mill body 10. The cold rolling mill body 10 is used to cold roll the steel pipe. The feeding module 20 is installed on the bed 11. The feeding module 20 is used to feed the steel pipe into the cold rolling mill in an intermittent feeding manner. In the machine body 10, the core rod chuck module 30 is arranged on one side of the feeding module 20. The core rod chuck module 30 is provided with a core rod, and the core rod passes through the core rod chuck module 30, the feeding module 20 and the cold rolling mill body 10. The feeding module 40 is arranged on one side of the core rod chuck module 30. The feeding module 40 is used to feed the steel pipe into the core rod chuck module 30. The automatic feeding module 50 is arranged on both sides of the feeding module 40. The automatic feeding module 50 is used to automatically push the steel pipe into the feeding module 40.

[0063] The present invention firstly transports a large number of steel pipes in batches to the automatic feeding module 50 by means of a crane or other means. In this embodiment, a support frame can be tilted on one side of the support base 51 to support the steel pipe, and the steel pipe is supported by the support frame, and the steel pipe slides from the support frame to the first step 511 of the support base 51 by tilting. The automatic feeding module 50 is provided with two, which are respectively arranged on both sides of the feeding module 40, and then the steel pipes are sequentially lifted to the feeding module 40 by the automatic feeding module 50, and then the feeding module 40 is fed to the feeding module 40. The material module 40 realizes continuous and uninterrupted feeding of steel pipes into the cold rolling mill body 10, realizes continuous cold rolling processing of the steel pipes, reduces the downtime of the cold rolling mill body 10, and increases production efficiency. During the processing, the steel pipes are intermittently fed into the cold rolling mill body 10 through the feeding module 20. During the cold rolling process, the core rod is clamped by the core rod chuck module 30 and driven to rotate, ensuring that the steel pipe has a certain turning angle during cold rolling, thereby ensuring that the surface of the rolled pipe has no wrinkles, the surface is smooth and the wall thickness is uniform.

[0064] In the invention, the cold rolling mill body 10 belongs to the prior art. For details, please refer to the utility model patent entitled "A rolling mill equipped with a clutch" (authorization announcement number: CN218963619U), so it will not be elaborated here.

[0065] The automatic feeding module 50 includes a support base 51, a lifting mechanism 52 and a guide sliding mechanism 53. The support base 51 is stepped and is used to support the steel pipe. The lifting mechanism 52 is installed on the support base 51. The lifting mechanism 52 is used to lift the steel pipe to the top of the support base 51 in sequence. The guide sliding mechanism 53 is installed between the support base 51 and the feeding module 40. The guide sliding mechanism 53 is used to guide the steel pipe to fall into the feeding module 40. After the steel pipe is transported to the support frame, it slides onto the support base 51 through the inclined support frame. The steel pipe to be processed is supported by the support base 51, and then the steel pipe on the support base 51 is lifted in sequence by the lifting mechanism 52. After being lifted to the top of the support base 51, it slides into the feeding module 40 through the guide sliding mechanism 53.

[0066] The support base 51 is provided with a first step 511, a second step 512 and a third step 513, the heights of the first step 511, the second step 512 and the third step 513 are increased successively, the first step 511 and the second step 512 are both inclined, and an inclined surface 514 is provided on the top of one side of the support base 51 close to the guide sliding mechanism 53, and the second step 512 is provided with a lifting surface 515.

[0067] The lifting mechanism 52 includes a lifting frame 521 and a lifting cylinder 522. The lifting frame 521 is installed between the two supporting bases 51. The lifting cylinder 522 is connected to the lifting frame 521. The lifting cylinder 522 is used to control the lifting of the lifting frame 521. The lifting frame 521 is provided with a lifting plate, which includes a first lifting plate 523 and a second lifting plate 524. The tops of the first lifting plate 523 and the second lifting plate 524 are both inclined, and the inclination direction is close to the side of the guide sliding mechanism 53. The first lifting plate 523 corresponds to the first step 511, and the width of the second lifting plate 524 is the same as the sum of the widths of the inclined surface 514, the third step 513 and the lifting surface 515. That is, in this embodiment, the width of the inclined surface 514 is a, the width of the third step 513 is b, the width of the lifting surface 515 is c, and the width of the second lifting plate 524 is the sum of a, b, and c. Figure 4 shown.

[0068] In this embodiment, the steel pipe slides down from the support frame and falls onto the first step 511. The lifting frame 521 is raised and lowered by the lifting cylinder 522, thereby driving the first lifting plate 523 and the second lifting plate 524 to rise and fall. The first lifting plate 523 lifts the steel pipe on the first step 511 upward. Since the first lifting plate 523 is inclined, when the first lifting plate 523 is lifted to the same height as the second step 512, the steel pipe slides into the second step 512 and continues to slide in the second step 512 until the steel pipe is lifted. It falls onto the lifting surface 515. The width of the lifting surface 515 is the same as the diameter of a steel pipe. Through this design, the second lifting plate 524 is prevented from lifting multiple steel pipes at a time. The second lifting plate 524 continues to lift a steel pipe on the lifting surface 515 until it falls into the third step 513. The setting of the third step 513 prevents the steel pipe from falling. Until the second lifting plate 524 is lifted to the inclined surface 514, the steel pipe slides through the inclined surface 514 into the guide sliding mechanism 53, and falls into the feeding module 40 through the guide sliding mechanism 53.

[0069] The guide sliding mechanism 53 includes a mounting frame 531, an inclined plate 532, a first guide plate 533, a second guide plate 534 and a guide cylinder 535. The inclined plate 532 is mounted on the top of the mounting frame 531. The first guide plate 533 and the guide cylinder 535 are mounted on the inclined plate 532. The guide cylinder 535 is connected to the second guide plate 534. The second guide plate 534 is controlled to be extended and retracted by the guide cylinder 535. The first guide plate 533 and the second guide plate 534 are inclined downward at the same angle to avoid the steel pipe from getting stuck. When the steel pipe is lifted up, the guide cylinder 535 controls the second guide plate 534 to extend, so as to correspond to the slide groove on the feed table 41, ensuring that the steel pipe can accurately fall into the slide groove. When it is not needed, the second guide plate 534 is controlled to retract by the guide cylinder 535 to avoid collision.

[0070] The feeding module 40 includes a feeding table 41, a switching mechanism 42 and a feeding mechanism 43. The feeding table 41 is installed on the support seat 411 through the switching mechanism 42. The feeding table 41 is provided with a first slide groove 412 and a second slide groove 413. The first slide groove 412 and the second slide groove 413 are used to place steel pipes. The switching mechanism 42 is used to control the movement of the feeding table 41 so that the first slide groove 412 or the second slide groove 413 is aligned with the core rod. Two feeding mechanisms 43 are installed, and the two feeding mechanisms 43 correspond to the first slide groove 412 and the second slide groove 413. The feeding mechanism 43 is used to feed the steel pipes in the first slide groove 412 and the second slide groove 413 into the core rod chuck module 30.

[0071] In the present invention, the feeding table 41 has two states, and the two states are switched by a switching mechanism 42. When the feeding table 41 is in the first state, the first slide groove 412 is close to the automatic loading module 50 on one side, and the steel pipe is lifted into the first slide groove 412 by the automatic loading module 50, and then the switching mechanism 42 moves to switch the feeding table 41 to the second state. At this time, the first slide groove 412 of the feeding table 41 corresponds to the core rod chuck module 30, and the second slide groove 413 corresponds to the automatic loading module 50 on one side. The steel pipe in the first slide groove 412 is fed into the core rod chuck module 30 through the feeding mechanism 43, and the automatic loading module 50 on the side of the second slide groove 413 lifts the steel pipe into the second slide groove 413, so as to switch back and forth, thereby realizing uninterrupted and continuous feeding.

[0072] The switching mechanism 42 includes a servo motor 421, a first driving wheel 422, a first driven wheel 423, a switching gear 424 and a switching shaft 425. The first driving wheel 422 is mounted on the servo motor 421, the first driven wheel 423 is mounted on the support seat 411, the first driving wheel 422 is meshed with the first driven wheel 423, the switching gear 424 is coaxially arranged with the first driven wheel 423, the switching gear 424 and the first driven wheel 423 are respectively provided with two, the switching shaft 425 is arranged between the two switching gears 424, the switching gear 424 is provided with a first tooth portion 426, and the switching gear 424 is provided with a first tooth portion 426. The first tooth portion 426 of 24 is arranged in the same direction, and the switching shaft 425 is provided with a second tooth portion 427. The first tooth portion 426 is meshed with the second tooth portion 427. Through the meshing of the first tooth portion 426 and the second tooth portion 427, the two switching gears 424 drive the switching shaft 425 to move back and forth during the rotation, thereby driving the feeding table 41 to move back and forth. The two ends of the switching shaft 425 are fixed to the bottom of the feeding table 41 through a first fixed seat 428, and a sliding seat 429 is provided on the support seat 411. The switching shaft 425 is slidably installed on the sliding seat 429, and the sliding seat 429 is used to increase the stability of the movement of the switching shaft 425.

[0073] The feeding mechanism 43 includes a servo motor 431, a first threaded rod 432, a guide rod 433 and a feeding plate 434. The servo motor 431 is connected to the first threaded rod 432. The first threaded rod 432 and the guide rod 433 are both fixed to the feed table 41 through a second fixed seat 435. The feeding plate 434 is provided with a threaded hole 436 and a sliding hole 437. The feeding plate 434 is installed on the first threaded rod 432 through the threaded hole 436. The feeding plate 434 is installed on the guide rod 433 through the sliding hole 437. The feeding plate 434 is provided with a convex portion 438. The convex portion 438 is used to push the steel pipe. The convex portion 438 extends outward to ensure that the steel pipe can be completely pushed out.

[0074] The core rod chuck module 30 includes a motor drive mechanism 31, a hydraulic mechanism 32 and a clamping claw mechanism 33. The motor drive mechanism 31 is used to drive the clamping mechanism to rotate, and the hydraulic mechanism 32 is used to control the clamping claw mechanism 33 to clamp or release the core rod.

[0075] The motor drive mechanism 31 includes a servo motor 311, a second driving wheel 312, a second driven wheel 313, a bevel gear 314 and a reduction gear 315. The servo motor 311 is connected to the second driving wheel 312, the second driving wheel 312 is meshed with the second driven wheel 313, the bevel gear 314 is coaxially arranged with the second driven wheel 313, the reduction gear 315 is installed on the claw mechanism 33, the bevel gear 314 is meshed with the reduction gear 315, and the cooperation between the bevel gear 314 and the reduction gear 315 reduces the rotation speed of the card-turning mechanism to avoid excessive rotation speed.

[0076] The clamping claw mechanism 33 includes a feed pipe 331, a core rod is installed in the feed pipe 331, a reduction gear 315 is installed on the feed pipe 331, a through hole 332 is provided at the end of the feed pipe 331, a clamping claw 333 is installed in the through hole 332, and an inclined portion 334 is provided at the end of the clamping claw 333 away from the through hole 332, and the core rod is clamped or loosened by the clamping claw 333.

[0077] The hydraulic mechanism 32 includes a fixed frame 321, a hydraulic cylinder 322, a push frame 323 and an extrusion ring 324. One end of the hydraulic cylinder 322 is hinged to one end of the fixed frame 321, and the other end of the hydraulic cylinder 322 is hinged to the push frame 323. The push frame 323 is hinged to the other end of the fixed frame 321. The extrusion ring 324 is sleeved on the feeding pipe 331. The push frame 323 is provided with a push member 325, and the extrusion ring 324 is provided with a push groove 326. The push member 32 The extrusion ring 324 is located in the pushing groove 326, and a clamping groove 327 is provided corresponding to the clamping claw 333. The clamping claw 333 is clamped in the clamping groove 327. The movement of the hydraulic cylinder 322 pushes the pushing frame 323 to rotate. Due to the limiting design of the pushing member 325 and the pushing groove 326, the pushing member 325 pushes the extrusion ring 324 to move during the rotation of the pushing frame 323. During the movement of the extrusion ring 324, the extrusion clamping claw 333 clamps the core rod or loosens the core rod.

[0078] The feeding module 20 includes a power mechanism 21, a screw mechanism 22 and a feeding trolley 23. The power mechanism 21 is arranged at one end of the bed 11. The power mechanism 21 is connected to the screw mechanism 22. The screw mechanism 22 is installed on the bed 11. The feeding trolley 23 is installed on the screw mechanism 22. The movement of the screw mechanism 22 is controlled by the power mechanism 21. When the screw mechanism 22 rotates, the feeding trolley 23 is driven to move along the screw mechanism 22. The steel pipe is pushed toward the cold rolling mill body 10 by the feeding trolley 23, thereby realizing intermittent feeding.

[0079] The screw mechanism 22 includes a second threaded rod 221, and bearing seats 222 are fixedly installed at both ends of the bed 11. The second threaded rod 221 is rotatably installed on the bearing seat 222 through a bearing. In this embodiment, two second threaded rods 221 are provided to increase movement stability. The feeding trolley 23 is installed on the second threaded rod 221 through a screw nut 231.

[0080] The power mechanism 21 includes a servo motor 211, a gear set 212 and a connecting gear 213. The servo motor 211 is connected to the gear set 212. The design of the gear set 212 reduces the rotation speed of the screw mechanism 22. One end of the connecting gear 213 is connected to the gear set 212, and the other end is connected to the second threaded rod 221. The ends of the two second threaded rods 221 are respectively connected to a connecting gear 213. The two connecting gears 213 can be connected by a belt to increase the synchronization of rotation. The gear set 212 is driven to rotate by the servo motor 211, and the screw mechanism 22 is driven to rotate by the connecting gear 213.

[0081] A method for using a fully automatic continuous cold rolling tube mill comprises the following steps:

[0082] Step 1: Automatically feed the steel pipe to the feeding table 41 of the feeding module 40 through the automatic feeding module 50;

[0083] (1) First, the switching mechanism 42 is used to control the movement of the feeding table 41 so that the first chute 412 or the second chute 413 on the feeding table 41 corresponds to the automatic feeding module 50 on one side;

[0084] (2) Then, the steel pipe located on the first step 511 is sequentially lifted to the second step 512 and the third step 513 by the lifting mechanism 52, and when lifting to the third step 513, only one steel pipe is lifted, and then the steel pipe is further lifted to the top of the support base 51, and falls into the guide sliding mechanism 53 through the inclined surface 514;

[0085] (3) The guide sliding mechanism 53 controls the extension and retraction of the second guide plate 534 through the guide cylinder 535, so that the second guide plate 534 corresponds to the first slide groove 412 or the second slide groove 413. After the steel pipe is lifted to the top of the support base 51, it falls onto the first guide plate 533 through the inclined surface 514, and then falls into the first slide groove 412 or the second slide groove 413 through the second guide plate 534;

[0086] Step 2: The steel pipe located in the feed platform 41 is pushed into the cold rolling mill body 10 through the feeding module 40 and the feeding mechanism 43;

[0087] (1) After the steel pipe falls into the first chute 412 or the second chute 413, the switching mechanism 42 is used to move the feeding platform 41 again, so that the chute of the steel pipe on the feeding platform 41 corresponds to the core rod chuck module 30, and at this time, the other chute corresponds to the automatic feeding module 50 on the other side;

[0088] (2) Then, the feeding mechanism 43 controls the feeding plate 434 to push the steel pipe to move, and push the steel pipe into the cold rolling mill body 10;

[0089] (3) When the steel pipe in the chute on one side is pushed into the cold rolling mill body 10 by the feeding mechanism 43, the other chute corresponds to the automatic feeding module 50 on the other side. At this time, the automatic feeding module 50 on the other side moves to lift the steel pipe to the other chute of the feeding table 41. After the steel pipe in one of the chute is pushed into the cold rolling mill body 10, the switching mechanism 42 controls the feeding table 41 to move, thereby realizing continuous feeding;

[0090] Step three, after the steel pipe enters the cold rolling mill body 10, the steel pipe is cold rolled, and the steel pipe is continuously and intermittently fed into the cold rolling mill body 10 through the feeding module 20, and during the processing of the cold rolling mill body 10, the core rod chuck module 30 clamps the core rod.

[0091] The present invention first realizes the continuous feeding of steel pipes through the mutual cooperation between the automatic loading module 50 and the feeding module 40 through the above-mentioned method steps, so that the cold rolling mill body 10 can continuously process the steel pipe, reduce the downtime of the cold rolling mill body 10, and increase production efficiency. At the same time, the feeding module 20 is used to realize the continuous intermittent feeding of the steel pipe into the cold rolling mill body 10, thereby realizing cold rolling processing. The core rod chuck module 30 is designed to clamp or release the core rod through the claws 333. When processing the steel pipe, the core rod is clamped by the claws 333, so that the core rod chuck module 30 drives the core rod to rotate, ensuring that the steel pipe has a certain angle of rotation during cold rolling, thereby ensuring that the surface of the rolled pipe has no wrinkles, the surface is smooth and the wall thickness is uniform.

[0092] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims

1. A fully automatic continuous cold rolling mill, comprising A cold rolling mill body, wherein the cold rolling mill body is used for cold rolling the steel pipe; A bed, wherein the bed is arranged on one side of the cold rolling mill body, and one end of the bed is connected to the cold rolling mill body; Features Also includes: A feeding module, the feeding module is installed on the bed, and the feeding module is used to feed the steel pipe into the cold rolling mill body in an intermittent feeding manner; A core rod chuck module, the core rod chuck module is arranged on one side of the feeding module, the core rod chuck module is provided with a core rod, and the core rod passes through the core rod chuck module, the feeding module and the cold rolling mill body; A feeding module, which is arranged at one side of the core rod chuck module and is used to feed the steel pipe into the core rod chuck module; An automatic feeding module is provided on both sides of the feeding module, and is used for automatically pushing the steel pipe into the feeding module.

2. The fully automatic continuous cold rolling mill according to claim 1, characterized in that: The automatic feeding module includes a supporting base, a lifting mechanism and a guiding sliding mechanism. The supporting base is stepped and is used to support the steel pipe. The lifting mechanism is installed on the supporting base and is used to lift the steel pipe to the top of the supporting base in sequence. The guiding sliding mechanism is installed between the supporting base and the feeding module and is used to guide the steel pipe to fall into the feeding module.

3. The fully automatic continuous cold rolling mill according to claim 2, characterized in that: The support base is provided with a first step, a second step and a third step, the heights of the first step, the second step and the third step are increased in sequence, the first step and the second step are inclined, the top of the support base on one side close to the guide sliding mechanism is provided with an inclined surface, and the second step is provided with a lifting surface; The lifting mechanism includes a lifting frame and a lifting cylinder, the lifting frame is installed between the two supporting bases, the lifting cylinder is connected to the lifting frame, the lifting cylinder is used to control the lifting of the lifting frame, the lifting frame is provided with a lifting plate, the lifting plate includes a first lifting plate and a second lifting plate, the tops of the first lifting plate and the second lifting plate are both inclined, the first lifting plate corresponds to the first step, and the width of the second lifting plate is the same as the sum of the widths of the inclined surface, the third step and the lifting surface; The guide sliding mechanism includes a mounting frame, an inclined plate, a first guide plate, a second guide plate and a guide cylinder. The inclined plate is installed on the top of the mounting frame, the first guide plate and the guide cylinder are installed on the inclined plate, the guide cylinder is connected to the second guide plate, and the guide cylinder is used to control the extension and retraction of the second guide plate.

4. The fully automatic continuous cold rolling mill according to claim 1, characterized in that: The feeding module includes a feeding table, a switching mechanism and a feeding mechanism. The feeding table is installed on a support seat through the switching mechanism. The feeding table is provided with a first slide groove and a second slide groove. The first slide groove and the second slide groove are used to place steel pipes. The switching mechanism is used to control the movement of the feeding table so that the first slide groove or the second slide groove is aligned with the core rod. Two feeding mechanisms are installed, and the two feeding mechanisms correspond to the first slide groove and the second slide groove. The feeding mechanism is used to feed the steel pipes in the first slide groove and the second slide groove into the core rod chuck module.

5. The fully automatic continuous cold rolling mill according to claim 4, characterized in that: The switching mechanism includes a servo motor 1, a first driving wheel, a first driven wheel, a switching gear and a switching shaft, the first driving wheel is installed on the servo motor 1, the first driven wheel is installed on the support seat, the first driving wheel is meshed with the first driven wheel, the switching gear is coaxially arranged with the first driven wheel, the switching gear and the first driven wheel are respectively provided with two, the switching shaft is arranged between the two switching gears, the switching gear is provided with a first tooth portion, the switching shaft is provided with a second tooth portion, the first tooth portion is meshed with the second tooth portion, both ends of the switching shaft are fixed to the bottom of the feed table through a first fixed seat, a sliding seat is provided on the support seat, the switching shaft is slidably installed on the sliding seat, and the sliding seat is used to increase the stability of the movement of the switching shaft.

6. The fully automatic continuous cold rolling mill according to claim 4, characterized in that: The feeding mechanism includes a second servo motor, a first threaded rod, a guide rod and a feeding plate. The second servo motor is connected to the first threaded rod. The first threaded rod and the guide rod are both fixed to the feeding table through a second fixing seat. The feeding plate is provided with a threaded hole and a sliding hole. The feeding plate is installed on the first threaded rod through the threaded hole. The feeding plate is installed on the guide rod through the sliding hole. The feeding plate is provided with a convex portion, and the convex portion is used to push the steel pipe.

7. The fully automatic continuous cold rolling mill according to claim 1, characterized in that: The core rod chuck module comprises a motor drive mechanism, a hydraulic mechanism and a claw mechanism, wherein the motor drive mechanism is used to drive the clamping mechanism to rotate, and the hydraulic mechanism is used to control the claw mechanism to clamp or release the core rod; The motor drive mechanism includes a servo motor 3, a second driving wheel, a second driven wheel, a bevel gear and a reduction gear, wherein the servo motor 3 is connected to the second driving wheel, the second driving wheel is meshed with the second driven wheel, the bevel gear is coaxially arranged with the second driven wheel, the reduction gear is mounted on the claw mechanism, and the bevel gear is meshed with the reduction gear; The clamping claw mechanism comprises a feeding pipe, the core rod is installed in the feeding pipe, the reduction gear is installed on the feeding pipe, a through hole is provided at the end of the feeding pipe, a clamping claw is installed in the through hole, and an inclined portion is provided at one end of the clamping claw away from the through hole, and the core rod is clamped or loosened by the clamping claw; The hydraulic mechanism includes a fixed frame, a hydraulic cylinder, a pushing frame and an extrusion ring. One end of the hydraulic cylinder is hinged to one end of the fixed frame, the other end of the hydraulic cylinder is hinged to the pushing frame, the pushing frame is hinged to the other end of the fixed frame, the extrusion ring is sleeved on the feeding pipe, the pushing frame is provided with a pushing member, the extrusion ring is provided with a pushing groove, the pushing member is located in the pushing groove, the extrusion ring is provided with a clamping groove corresponding to the clamping claw, and the clamping claw is clamped in the clamping groove.

8. The fully automatic continuous cold rolling mill according to claim 1, characterized in that: The feeding module includes a power mechanism, a screw mechanism and a feeding trolley. The power mechanism is arranged at one end of the bed, the power mechanism is connected to the screw mechanism, the screw mechanism is installed on the bed, and the feeding trolley is installed on the screw mechanism. The movement of the screw mechanism is controlled by the power mechanism to make the feeding trolley move along the screw mechanism. The feeding trolley is used to push the steel pipe to move toward the cold rolling mill body.

9. The fully automatic continuous cold rolling mill according to claim 8, characterized in that: The power mechanism includes a servo motor four, a gear set and a connecting gear. The servo motor four is connected to the gear set. One end of the connecting gear is connected to the gear set, and the other end is connected to the screw mechanism. The gear set is driven to rotate by the servo motor four and the screw mechanism is driven to rotate by the connecting gear. The screw mechanism includes a second threaded rod. Bearing seats are fixedly installed at both ends of the bed. The second threaded rod is rotatably installed on the bearing seat through a bearing, and the feeding trolley is installed on the second threaded rod through a screw nut.

10. A method for using a fully automatic continuous cold rolling mill according to any one of claims 1 to 9, characterized in that The following steps are involved: Step 1: Automatically feed the steel pipe to the feeding table of the feeding module through the automatic feeding module; (1) First, the feed table is controlled to move by a switching mechanism so that the first chute or the second chute on the feed table corresponds to the automatic feeding module on one side; (2) Then, the steel pipe located on the first step is sequentially lifted to the second step and the third step by the lifting mechanism, and when lifting to the third step, only one steel pipe is lifted, and then the steel pipe is further lifted to the top of the support base, and falls into the guide sliding mechanism through the inclined surface; (3) The guide sliding mechanism controls the extension and retraction of the second guide plate through the guide cylinder, so that the second guide plate corresponds to the first slide groove or the second slide groove. After the steel pipe is lifted to the top of the support base, it falls onto the first guide plate through the inclined surface, and then falls into the first slide groove or the second slide groove through the second guide plate; Step 2: Push the steel pipe located in the feed table into the cold rolling mill body through the feeding mechanism by the feeding module; (1) After the steel pipe falls into the first chute or the second chute, the feed table is moved again by the switching mechanism so that the chute of the steel pipe on the feed table corresponds to the core rod chuck module, and at this time, the other chute corresponds to the automatic feeding module on the other side; (2) Then the feeding mechanism controls the feeding plate to push the steel pipe to move, and push the steel pipe into the cold rolling mill body; (3) When the steel pipe in the chute on one side is pushed into the cold rolling mill body by the feeding mechanism, the other chute corresponds to the automatic feeding module on the other side. At this time, the automatic feeding module on the other side moves to lift the steel pipe to another chute on the feeding table. After the steel pipe in one of the chutes is pushed into the cold rolling mill body, the switching mechanism controls the movement of the feeding table to achieve continuous feeding; Step three, after the steel pipe enters the cold rolling mill body, it is cold rolled, and the steel pipe is continuously and intermittently fed into the cold rolling mill body through the feeding module, and during the processing of the cold rolling mill body, the core rod chuck module clamps the core rod.

Images