Double wire cold reducing pipe mill for processing ribbed pipe

Abstract

The application relates to the technical field of cold rolling pipe machines, in particular to a double-line cold rolling pipe machine for processing ribbed pipes, which comprises a cold rolling machine main body, a machine head, a rotary feeding mechanism and a workbench arranged on the cold rolling machine main body, a rolling roller is arranged in the machine head, and a ribbed groove is arranged on the rolling roller; the double-line cold rolling pipe machine for processing ribbed pipes is characterized in that an oiling mechanism is arranged on the workbench; when a pipe blank passes through the oiling mechanism, the extrusion column is extruded to make the shielding plate ascend, the oil liquid in the oil storage groove can flow out on the surface of the pipe blank, the oil liquid is more uniformly coated by the coating roller, the waste of the oil liquid is reduced, the grinding piece on the mounting frame is driven by the second rotating disc to grind the surface of the pipe blank, the follow-up gear walks on the gear frame, the wedge-shaped block makes up-and-down reciprocating motion, the grinding piece has the opening and closing effect, the surface of the pipe blank is guaranteed to be ground, and the displacement effect of the pipe blank is not affected by the rotary feeding mechanism.

Description

Technical Field

[0001] This invention relates to the field of cold rolling mill technology, specifically a double-line cold rolling mill for processing ribbed tubes. Background Technology

[0002] With the rapid development of the economy, cold rolling mills have been widely used in my country. Seamless steel pipes are now used in all sectors of the national economy, and the demand for them is increasing. Seamless steel pipes that were originally produced by cold drawing are now gradually being replaced by cold rolling. To increase production capacity, double-line cold rolling mills have emerged.

[0003] However, in order to ensure lubrication of the deformation area, current cold rolling mills generally apply oil to the surface of the tube blank during the rolling process. This not only results in uneven application and significant waste, but also makes it impossible to ensure that the tube blank surface is free of burrs before entering the mill head. As a result, the tube blank is easily damaged during the rolling process and its lifespan is shortened. Therefore, we propose a double-line cold rolling mill for processing ribbed tubes. Summary of the Invention

[0004] One of the technical problems this application aims to solve is: how to simultaneously grind and uniformly coat the tube blank with oil during the feeding process.

[0005] To solve the above-mentioned technical problems, this application provides a double-wire cold rolling mill for processing reinforced tubes, including a cold rolling mill body and a die head, a rotary feeding mechanism and a worktable disposed on the cold rolling mill body. The die head is provided with rolls, and the rolls are provided with reinforcing grooves.

[0006] It also includes:

[0007] An oiling mechanism is installed on the worktable and is used to apply oil to the workpiece.

[0008] The coating mechanism is rotatably mounted on the oiling mechanism, and the coating mechanism evenly coats the oiled workpiece.

[0009] A grinding mechanism is rotatably mounted on an oiling mechanism to grind the surface of a workpiece.

[0010] In some embodiments, the grinding mechanism includes a second rotating disk with a toothed structure, a mounting frame on the second rotating disk, a U-shaped rod embedded in the mounting frame, a grinding disc at one end of the U-shaped rod, a return spring between the grinding disc and the mounting frame, and a fixing frame at the other end of the U-shaped rod.

[0011] In some embodiments, the fixed frame is provided with a wedge-shaped block, displacement blocks are embedded on both sides of the wedge-shaped block, the displacement blocks are embedded on the fixed frame, a connecting rod is arranged on the wedge-shaped block, the connecting rod penetrates the surface of the fixed frame, a follow gear is arranged on the connecting rod, and the follow gear is rotationally arranged on the mounting frame.

[0012] In some embodiments, the oiling mechanism comprises a mounting disc, the grinding mechanism and the smearing mechanism are rotationally mounted on the mounting disc, a gear frame is formed on the side surface of the mounting disc close to the second rotating disc, the follow gear is engaged with the gear frame, an oil storage groove is formed in the mounting disc, an oil inlet is formed on the mounting disc, and an oil outlet is formed on the oil storage groove.

[0013] In some embodiments, one end of a connecting spring is arranged in the oil outlet, the other end of the connecting spring is provided with a shielding plate, the shielding plate covers the surface of the oil outlet, an extrusion column is arranged on the lower surface of the shielding plate, and the extrusion column is connected to the inner surface of the mounting disc through the oil outlet.

[0014] In some embodiments, the smearing mechanism comprises a first rotating disc, the first rotating disc is provided with a toothed structure, and a plurality of smearing rollers are arranged on the first rotating disc.

[0015] In some embodiments, an avoiding hole is formed on the upper surface of the workbench, the smearing mechanism and the grinding mechanism are provided with a transmission mechanism through the avoiding hole, and the transmission mechanism is located in the interior of the workbench.

[0016] In some embodiments, the transmission mechanism comprises a smearing connecting gear, the smearing connecting gear is arranged in the workbench, the smearing connecting gear is engaged with the toothed structure on the first rotating disc, a grinding connecting gear is arranged in the workbench, the grinding connecting gear is engaged with the toothed structure on the second rotating disc, a transmission gear is arranged on the smearing connecting gear, an acceleration gear is arranged on the grinding connecting gear, a plurality of acceleration gears are arranged and engaged with each other, a transmission rod is arranged between the transmission gear and the acceleration gear, and a power assembly is arranged on the acceleration gear.

[0017] In some embodiments, the power assembly comprises an output gear, the output gear is connected with an output shaft of a motor, a toothed belt is arranged on the output gear, a connecting gear is connected with the output gear through the toothed belt, and the connecting gear is arranged on the acceleration gear.

[0018] In some embodiments, the oil storage groove is formed in a fan-shaped structure.

[0019] The present application has at least the following advantages:

[0020] 1. The oiling mechanism cooperates with the coating mechanism, the extrusion column is extruded when the pipe blank passes through the oiling mechanism, the shielding plate is lifted, the oil in the oil storage groove can flow out on the surface of the pipe blank, the oil is coated more uniformly by the coating roller, and the waste of oil is reduced.

[0021] 2. The grinding mechanism is provided, the second rotating disc drives the grinding piece on the mounting frame to grind the surface of the pipe blank, the follow-up gear walks on the gear frame, the wedge block makes up-and-down reciprocating motion, the grinding piece has the opening and closing effect, the surface of the pipe blank is ground, and the displacement effect of the pipe blank is obtained without affecting the rotary feeding mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the overall structure schematic diagram of the application;

[0023] Figure 2 It is the overall structure schematic diagram of the application; Figure 1

[0024] Figure 3 It is the overall structure schematic diagram of the application;

[0025] Figure 4 It is the overall structure schematic diagram of the application; Figure 1

[0026] Figure 5 It is the overall structure schematic diagram of the application; Figure 2

[0027] Figure 6 It is the overall structure schematic diagram of the application; Figure 5

[0028] Figure 7 It is the overall structure schematic diagram of the application;

[0029] Figure 8 It is the overall structure schematic diagram of the application; Figure 7

[0030] Figure 9 It is the overall structure schematic diagram of the application;

[0031] Figure 10 It is the overall structure schematic diagram of the application; Figure 9 Figure 1

[0032] Figure 11 It is the overall structure schematic diagram of the application;

[0033] Figure 12 It is the overall structure schematic diagram of the application; ​​​​​​​

[0034] Figure 13 For the invention Figure 9 Schematic diagram of local structure Figure 2 .

[0035] In the figure: 1 - the main body of the cold rolling mill; 2 - the head; 201 - the roller; 3 - the rotary feeding mechanism; 4 - the workbench; 401 - the avoidance hole; 5 - the smearing mechanism; 501 - the first rotating disc; 502 - the smearing roller; 6 - the oiling mechanism; 601 - the mounting disc; 602 - the gear frame; 603 - the oil storage groove; 604 - the oil outlet hole; 605 - the connecting spring; 606 - the extrusion column; 607 - the shielding plate; 608 - the oil inlet; 7 - the grinding mechanism; 701 - the second rotating disc; 702 - the mounting frame; 703 - the grinding sheet; 704 - the return spring; 705 - the "U" shaped rod; 706 - the fixing frame; 707 - the displacement block; 708 - the wedge block; 709 - the follow-up gear; 710 - the connecting rod; 8 - the transmission mechanism; 801 - the smearing connecting gear; 802 - the grinding connecting gear; 803 - the transmission gear; 804 - the acceleration gear; 9 - the power assembly; 901 - the output gear; 902 - the connecting gear; 903 - the toothed belt. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application. EMBODIMENT

[0037] Please refer to Figures 1-12 The present application provides a technical solution: a double-wire cold rolling pipe mill for processing ribbed pipes, comprising a cold rolling mill main body 1 and a head 2, a rotary feeding mechanism 3 and a workbench 4 arranged on the cold rolling mill main body 1, a roller 201 arranged in the head 2, and a ribbing groove opened on the roller 201 for ribbing the surface of the pipe blank;

[0038] Further comprising:

[0039] An oiling mechanism 6 is arranged on the workbench 4 to oil the workpiece;

[0040] A smearing mechanism 5 is rotatably arranged on the oiling mechanism 6 to smear the oiled workpiece evenly;

[0041] A grinding mechanism 7 is rotatably arranged on the oiling mechanism 6 to grind the surface of the workpiece.

[0042] The grinding mechanism 7 comprises a second rotating disc 701, the second rotating disc 701 is provided with a tooth structure, the second rotating disc 701 can rotate through meshing with other gears, the second rotating disc 701 is provided with a mounting frame 702, other mechanisms can be installed on the mounting frame 702, a "U"-shaped rod 705 is embedded and installed on the mounting frame 702, one end of the "U"-shaped rod 705 is provided with a grinding piece 703, the grinding piece 703 grinds the pipe blank, the grinding piece 703 and the mounting frame 702 are provided with a return spring 704, the grinding state is quickly changed, the other end of the "U"-shaped rod 705 is provided with a fixing frame 706, so that the state of the grinding piece 703 is changed.

[0043] The fixing frame 706 is provided with a wedge block 708, displacement blocks 707 are embedded and installed on the two sides of the wedge block 708, the displacement blocks 707 move along the inclined surface of the wedge block 708, the displacement blocks 707 are embedded on the fixing frame 706, the wedge block 708 is provided with a connecting rod 710, the connecting rod 710 penetrates the surface of the fixing frame 706, the connecting rod 710 is provided with a follow-up gear 709, the connecting rod 710 reciprocates after the follow-up gear 709 rotates, so that the wedge block 708 reciprocates, and the follow-up gear 709 rotates and is arranged on the mounting frame 702.

[0044] The oiling mechanism 6 comprises a mounting disc 601, the grinding mechanism 7 and the smearing mechanism 5 are rotatably installed on the mounting disc 601, so that the grinding mechanism 7 and the smearing mechanism 5 have a fixed position, and can be arranged to be opposite to the rotation direction of the pipe blank, the mounting disc 601 is provided with a gear frame 602 on the surface close to the second rotating disc 701, the follow-up gear 709 meshes with the gear frame 602, so that the follow-up gear 709 moves on the gear frame 602 and makes the follow-up gear 709 rotate, the mounting disc 601 is provided with an oil storage groove 603, so as to store oil, the mounting disc 601 is provided with an oil inlet 608, the oil storage groove 603 is provided with an oil outlet hole 604, and oil flows out through the oil outlet hole 604.

[0045] The oil outlet hole 604 is provided with one end of a connecting spring 605, the other end of the connecting spring 605 is provided with a shielding plate 607, the connecting spring 605 quickly resets, so as to prevent oil from flowing out in the state of stopping working, the shielding plate 607 covers the surface of the oil outlet hole 604, the lower surface of the shielding plate 607 is provided with an extrusion column 606, the extrusion column 606 drives the shielding plate 607 to displace, and the extrusion column 606 is connected to the inner surface of the mounting disc 601 through the oil outlet hole 604.

[0046] The smearing mechanism 5 comprises a first rotating disc 501, the first rotating disc 501 is provided with a tooth structure, so that the first rotating disc 501 has the effect of meshing rotation, and the first rotating disc 501 is provided with a plurality of smearing rollers 502, so that the oil can be uniformly smeared while grinding.

[0047] The upper surface of the workbench 4 is provided with an avoiding hole 401, the smearing mechanism 5 and the grinding mechanism 7 are provided with a transmission mechanism 8 through the avoiding hole 401, and the transmission mechanism 8 is located inside the workbench 4.

[0048] The transmission mechanism 8 comprises a smearing connecting gear 801, the smearing connecting gear 801 is arranged in the workbench 4, the smearing connecting gear 801 is engaged with the toothed structure on the first rotating disc 501, so that the first rotating disc 501 can rotate synchronously, the workbench 4 is provided with a grinding connecting gear 802, the grinding connecting gear 802 is engaged with the toothed structure on the second rotating disc 701, so that the second rotating disc 701 can rotate synchronously, the smearing connecting gear 801 is provided with a transmission gear 803, the grinding connecting gear 802 is provided with an acceleration gear 804, through the acceleration gear 804, the grinding speed of the second rotating disc 701 is accelerated, the acceleration gear 804 is provided with a plurality of and is engaged with each other, and the stroke reaches, the transmission gear 803 and the acceleration gear 804 are provided with a transmission rod, so that the acceleration gear 804 and the transmission gear 803 rotate coaxially, and the acceleration gear 804 is provided with a power assembly 9.

[0049] The power assembly 9 comprises an output gear 901, the output gear 901 is connected with a motor output shaft, the output gear 901 is provided with a toothed belt 903, the toothed belt 903 makes the connecting gear 902 and the output gear 901 rotate synchronously, the output gear 901 is connected with a connecting gear 902 through the toothed belt 903, and the connecting gear 902 is arranged on the acceleration gear 804.

[0050] In use, the pipe embryo to be processed is conveyed onto the cold rolling machine main body 1 by the feeding mechanism and connected to be transported to the rear end. In the process of displacement, one end of the pipe blank enters the grinding mechanism 7. The output gear 901 driven by the motor drives the connecting gear 902 through the toothed belt 903 to rotate synchronously. The acceleration gear 804 connected between the connecting gear 902 and the grinding connecting gear 802 makes the grinding connecting gear 802 rotate faster than the connecting gear 902. Since the second rotating disc 701 is connected with the grinding connecting gear 802, the second rotating disc 701 drives the mounting frame 702 to rotate. In the process of rotation of the mounting frame 702, the follow-up gear 709 rotates on the gear frame 602, and the wedge block 708 connected with the follow-up gear 709 through the connecting rod 710 moves up and down, so that the displacement block 707 slides on the inclined surface of the wedge block 708, and the grinding piece 703 makes opening and closing movement. Under the premise of ensuring the grinding effect, the operation of the pipe blank in the rotary feeding mechanism 3 is not affected. After the pipe embryo passes through the grinding mechanism 7, it enters the oiling mechanism 6. The pipe embryo is pressed against the extrusion column 606, so that the shielding plate 607 rises, and the oil in the oil tank 603 is sprayed on the surface of the pipe embryo through the oil outlet hole 604. After the work is finished, the shielding plate 607 covers the surface of the oil outlet hole 604 under the action of the connecting spring 605, so as to avoid oil leakage. After the pipe embryo passes through the oiling mechanism 6, it enters the smearing mechanism 5. Since the first rotating disc 501 of the smearing mechanism 5 is connected with the transmission gear 803 through the smearing connecting gear 801, the transmission effect of the connecting gear 902 is obtained, and the rotating speed of the first rotating disc 501 is slower than that of the second rotating disc 701. When the first rotating disc 501 rotates on the pipe blank, the oil on the pipe embryo is evenly smeared by the smearing roller 502, and then enters the rotary feeding mechanism 3. The rotary feeding mechanism 3 is arranged in the opposite direction to the rotating direction of the grinding mechanism 7 and the smearing mechanism 5. After passing through the rotary feeding mechanism 3, it then enters the head 2, and the cold rolling work is carried out by the roller 201. Since the roller 201 is provided with a reinforcing groove, the pipe embryo is left with a reinforcing line on the surface during cold rolling. Embodiment

[0051] Please refer to Figures 1-13 The present application provides a technical solution: a double-line cold rolling pipe machine for processing ribbed pipe, embodiment 2 is optimized on the basis of embodiment 1;

[0052] The oil tank 603 is provided with a fan-shaped structure. Since the oiling mechanism 6 is fixed on the workbench 4, the oil in the oil tank 603 will only flow out through the oil outlet hole 604, and the oil below the oil outlet hole 604 will not flow out. In order to avoid this situation, the oil tank 603 is provided with a fan-shaped structure, so that the structure of the oil tank 603 is more reasonable, and the waste of oil is reduced.

[0053] In use, the pipe embryo to be processed is sent to the cold rolling machine main body 1 by the feeding mechanism and connected to be transported to the rear end. In the process of displacement, one end of the pipe blank enters the grinding mechanism 7. The output gear 901 driven by the motor drives the connected gear 902 through the toothed belt 903 to rotate synchronously. The acceleration gear 804 connected between the connected gear 902 and the grinding connecting gear 802 makes the grinding connecting gear 802 rotate faster than the connected gear 902. The second rotating disc 701 is connected with the grinding connecting gear 802, so that the second rotating disc 701 drives the mounting frame 702 to rotate. In the process of rotation of the mounting frame 702, the follow-up gear 709 rotates on the gear frame 602, and the wedge block 708 connected with the follow-up gear 709 through the connecting rod 710 moves up and down, so that the displacement block 707 slides on the inclined surface of the wedge block 708, and the grinding piece 703 makes opening and closing movement. Under the premise of ensuring the grinding effect, the operation of the pipe blank in the rotary feeding mechanism 3 is not affected. After the pipe embryo passes through the grinding mechanism 7, it enters the oiling mechanism 6. The pipe embryo is pressed and extruded by the extrusion column 606, so that the shielding plate 607 rises, and the oil in the oil tank 603 is sprayed on the surface of the pipe embryo through the oil outlet hole 604. After the work is finished, the shielding plate 607 covers the surface of the oil outlet hole 604 under the action of the connecting spring 605, so as to avoid oil leakage. After the pipe embryo passes through the oiling mechanism 6, it enters the smearing mechanism 5. Since the first rotating disc 501 of the smearing mechanism 5 is connected with the transmission gear 803 through the smearing connecting gear 801, the transmission effect of the connected gear 902 is obtained, and the rotating speed of the first rotating disc 501 is slower than that of the second rotating disc 701. When the first rotating disc 501 rotates on the pipe blank, the oil on the pipe embryo is evenly smeared by the smearing roller 502, and then enters the rotary feeding mechanism 3. The rotary feeding mechanism 3 is arranged in the opposite direction to the rotating direction of the grinding mechanism 7 and the smearing mechanism 5. After passing through the rotary feeding mechanism 3, it then enters the head 2, and the cold rolling work is carried out by the roller 201. Since the roller 201 is provided with a reinforcing groove, the pipe embryo is left with a reinforcing line on the surface during cold rolling.

[0054] The oil tank 603 is provided in a fan-shaped structure. Since the oiling mechanism 6 is fixed on the workbench 4, the oil in the oil tank 603 will only flow out through the oil outlet hole 604, and the oil below the oil outlet hole 604 will not flow out. In order to avoid this situation, the oil tank 603 is arranged in a fan-shaped structure, so that the structure of the oil tank 603 is more reasonable, and the waste of oil is reduced.

[0055] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A double strand cold pilger tube mill for processing pilgered pipe, comprising a cold pilger mill body and a mill head, a rotary feed mechanism and a worktable arranged on the cold pilger mill body, characterized in that: The rolling mill is internally provided with a rolling roller, and a reinforcing groove is formed on the rolling roller; Further comprising: The oiling mechanism is arranged on the workbench, and the workpiece is oiled through the oiling mechanism; The smearing mechanism is rotatably arranged on the oiling mechanism, and the oiled workpiece is smeared uniformly through the smearing mechanism; The grinding mechanism is rotatably arranged on the oiling mechanism, and the surface of the workpiece is ground through the grinding mechanism, and the grinding mechanism comprises a second rotating disc, a tooth structure is formed on the second rotating disc, an installation frame is arranged on the second rotating disc, a U-shaped rod is embedded and installed on the installation frame, a grinding piece is arranged at one end of the U-shaped rod, a return spring is arranged between the grinding piece and the installation frame, a fixing frame is arranged at the other end of the U-shaped rod, a wedge-shaped block is arranged in the fixing frame, displacement blocks are embedded and installed on both sides of the wedge-shaped block, the displacement blocks are embedded in the fixing frame, a connecting rod is arranged on the wedge-shaped block, the connecting rod penetrates through the surface of the fixing frame, a following gear is arranged on the connecting rod, and the following gear is rotatably arranged on the installation frame. The oiling mechanism comprises an installation disc, and the grinding mechanism and the smearing mechanism are rotatably installed on the installation disc.

2. A double strand cold reeling pipe mill for manufacturing ribbed pipe as claimed in claim 1 wherein: A storage groove is formed in the installation disc, an oil inlet is formed on the installation disc, and an oil outlet is formed on the storage groove.

3. A double strand cold reeling pipe mill for manufacturing ribbed pipe as claimed in claim 2 wherein: A connecting spring is arranged at one end of the oil outlet, a shielding plate is arranged at the other end of the connecting spring, the shielding plate covers the surface of the oil outlet, an extrusion column is arranged on the lower surface of the shielding plate, and the extrusion column is connected to the inner surface of the installation disc through the oil outlet.

4. The double- strand cold reeling pipe machine for processing the ribbed pipe according to claim 3, characterized in that: The smearing mechanism comprises a first rotating disc, a tooth structure is formed on the first rotating disc, and a plurality of smearing rollers are arranged on the first rotating disc.

5. The double- strand cold reeling pipe machine for processing the ribbed pipe according to claim 4, characterized in that: An avoiding hole is formed on the upper surface of the workbench, the smearing mechanism and the grinding mechanism are provided with a transmission mechanism through the avoiding hole, and the transmission mechanism is located in the workbench.

6. A double strand cold reeling pipe mill for manufacturing ribbed pipe as claimed in claim 5 wherein: The transmission mechanism comprises a smearing connecting gear, the smearing connecting gear is arranged in the workbench, the smearing connecting gear is engaged with the tooth structure on the first rotating disc, a grinding connecting gear is arranged in the workbench, the grinding connecting gear is engaged with the tooth structure on the second rotating disc, a transmission gear is arranged on the smearing connecting gear, an acceleration gear is arranged on the grinding connecting gear, a plurality of acceleration gears are arranged and engaged with each other, a transmission rod is arranged between the transmission gear and the acceleration gear, and a power assembly is arranged on the acceleration gear.

7. A double strand cold reeling pipe mill for manufacturing ribbed pipe as claimed in claim 6 wherein: The power assembly comprises an output gear, the output gear is connected with a motor output shaft, a tooth belt is arranged on the output gear, a connecting gear is connected with the output gear through the tooth belt, and the connecting gear is arranged on the acceleration gear.

8. The double-strand cold-rolling pipe mill for processing a ribbed pipe according to claim 7, characterized in that: The storage groove is formed in a fan-shaped structure.

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