WO2022109965A1 - Machine d'étirage à froid à trois fils combinée - Google Patents

Machine d'étirage à froid à trois fils combinée Download PDF

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Publication number
WO2022109965A1
WO2022109965A1 PCT/CN2020/132035 CN2020132035W WO2022109965A1 WO 2022109965 A1 WO2022109965 A1 WO 2022109965A1 CN 2020132035 W CN2020132035 W CN 2020132035W WO 2022109965 A1 WO2022109965 A1 WO 2022109965A1
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WO
WIPO (PCT)
Prior art keywords
drawing machine
cold drawing
wire
wall
combined
Prior art date
Application number
PCT/CN2020/132035
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English (en)
Chinese (zh)
Inventor
朱平
Original Assignee
常熟市梅李机械制造有限公司
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Application filed by 常熟市梅李机械制造有限公司 filed Critical 常熟市梅李机械制造有限公司
Publication of WO2022109965A1 publication Critical patent/WO2022109965A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/32—Feeding or discharging the material or mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
    • B21C1/34—Guiding or supporting the material or mandrels

Definitions

  • the invention relates to the technical field of cold drawing machines, in particular to a combined three-wire cold drawing machine.
  • cold-drawn machines are the main processing equipment for cold-drawn steel pipes. It is used for drawing black and non-ferrous metal bar materials at room temperature and secondary processing of waste pipes after hot rolling and extrusion. It is the main processing equipment for producing small diameter, precision, thin wall and high mechanical performance pipes.
  • the cold drawing machine can be roughly divided into two types: three-seat separation type and frame type.
  • the transmission mode it can be divided into various types of pullers such as chain type, hydraulic transmission type, rack type, and screw type.
  • the drawing trolley is supported by two I-shaped guide rails and driven by the main oil cylinder, so that the trolley runs along the I-shaped guide rails.
  • the main oil cylinder and the drawing trolley can be axially fixed to the trolley body through an adjustable split piston.
  • the three-wire cold drawing machine generally includes a draft seat with three built-in molds and a cold drawing trolley arranged on one side of the draft seat. , and the cold-drawing trolley is provided with three vices for holding one end of the steel pipe. When the cold-drawing trolley moves in the opposite direction of the draft seat, the steel pipe passes through the draft seat to change its diameter.
  • Patent CN207592448U discloses a fully automatic three-wire cold drawing machine.
  • the invention discloses a fully automatic three-wire cold drawing machine, which is composed of a general support and a drawing machine.
  • the middle frame of the general support is provided with a holding plate.
  • the placing plate is welded and fixed with the frame body of the general support, the top of the general support is provided with a sliding top plate on both sides, the sliding top plate on one side is provided with a scale, and a side wall corresponding to the two sliding top plates is provided with a scale.
  • a slide rail which is fitted and slidably connected to the pulleys on both sides of the pulling machine, a pulling hole is provided on the outside of the pulling machine, and the two side ends adjacent to the pulling hole are provided with connecting frames, and the connecting One end of the frame is welded and fixed to the side end of the pulling machine, and the two ends are embedded in the design of the sliding structure, which effectively collects and processes the drawn steel pipes in a unified manner, thus saving a lot of time for sorting and planning.
  • the information analysis and execution of the motor, the pulling equipment and the information receiver realizes the automation of the pulling machine, thereby avoiding the fatigue caused by manual supervision.
  • the invention provides a combined three-wire cold drawing machine, which aims to support and move the pipe pulled out by the cold drawing machine through three extension frames, so that the pipe will not fall due to its own weight and cause the bending of the product.
  • the feeding bins are synchronously and automatically loaded, which greatly reduces the consumption of manpower and makes the entire machine more automated.
  • a combined three-wire cold drawing machine includes an outer casing, a proximity switch A is installed on one side of the outer casing surface, an extension frame is installed on one side of the outer casing surface, and there are three extension frames, and the inner wall bottom of the extension frame is at the bottom.
  • An electric push rod is installed at the end, a folding rod is welded on one side of the surface of the electric push rod, an iron block is fixedly connected to the surface of the folding rod, an electromagnet is installed on the inner wall of the extension frame, and a pull rod is installed on the surface of the outer casing.
  • the inner wall of the elongated warehouse is equipped with pulling blocks and there are three pulling blocks, the surface of the elongated warehouse is installed with three upper silos, and the inner wall of the upper warehouse is welded with spring telescopic rods And there are two spring telescopic rods, an arc-shaped support plate is welded on the other side of the surface of the spring telescopic rod, an arc-shaped baffle is welded on the inner wall of the upper silo, and a hydraulic rod is installed on one side of the surface of the upper silo.
  • a switch is mounted on the surface of the casing.
  • a cold drawing machine is installed on the surface of the casing.
  • a blocking block is installed on the inner wall of the extension frame.
  • a moving wheel is installed on the surface of the arc baffle.
  • the surface of the elongated bin is provided with a feeding port, and the top of the surface of the elongated bin is provided with a powder inlet.
  • the signal output end of the proximity switch A is signal-connected to the proximity switch B and the signal input end of the hydraulic rod.
  • the input end of the switching power supply is electrically connected to the output end of the external power supply through a wire, and the output end of the switching power supply is connected to the cold drawing machine, the proximity switch A and the proximity switch B through a wire, and the proximity switch B power supply
  • the output end is electrically connected with the electric push rod and the input end of the electromagnet power supply through wires.
  • the three-wire cold drawing machine has a wider range of use.
  • the three-wire cold drawing machine generally includes a draft seat with three built-in molds and a cold drawing trolley arranged on one side of the draft seat, and the cold drawing trolley is provided with three
  • the cold drawing trolley is provided with three
  • the steel pipe passes through the draft seat to change the diameter of the pipe, so that good cooperation is required when feeding materials.
  • the spring telescopic rod will firmly fix the tube on the inner wall of the upper silo, and then add lubricating powder to the elongated silo through the powder inlet, so that a small amount of lubricating powder can be added.
  • Filling the elongated chamber greatly reduces the use of lubricating powder, and allows the lubricating powder to fully contact the pipeline, thereby producing an effect.
  • the proximity switch is a position switch that can be operated without mechanical direct contact with moving parts. When the object is close to the sensing surface of the switch to the action distance, the switch can be operated without mechanical contact and any pressure. , so as to drive DC electrical appliances or provide control instructions to computer (plc) devices.
  • Proximity switch is a switch-type sensor (ie, non-contact switch), which has the characteristics of travel switch and micro switch, and has sensing performance, reliable action, stable performance, fast frequency response, long service life, and anti-interference. Strong ability, etc., and has the characteristics of waterproof, shockproof, corrosion resistance and so on.
  • the products are inductive, capacitive, Hall, AC, DC, so that the signal will be transmitted to the hydraulic rod, so that the hydraulic rod will push the uppermost pipe of the feeding bin to push forward, and push the pipe to the inlet. Inside the feed port and pass through the drawing bin, so that when the cold drawing machine returns to the surface of the drawing bin, the pipe can be directly cold drawn, which greatly reduces the labor consumption. After the last pipe is cold drawn , the lower tube will move up under the thrust of the spring telescopic rod, and during the horizontal movement of the tube, the moving wheel on the curved veneer will play a lubricating role, making the tube move more smoothly.
  • the proximity switch A is installed on one side of the outer casing surface
  • the extension frame is installed on one side of the outer casing surface and there are three extension frames
  • the bottom end of the inner wall of the extension frame A folding rod is welded on the surface of the push rod
  • an iron block is fixedly connected to the surface of the folding rod
  • an electromagnet is installed on the inner wall of the extension frame
  • a cold drawing machine is installed on the surface of the shell
  • a blocking block is installed on the inner wall of the extension frame
  • the signal output of the proximity switch A is The terminal is connected to the proximity switch B and the signal input terminal of the hydraulic rod.
  • the proximity switch B on the extension frame will receive the signal, so that the The electromagnet and the electric push rod will be activated synchronously, and the electric push rod will push the folding rod forward.
  • the iron block on the folding rod will be adsorbed by the electromagnet, so that the folding rod will be unfolded.
  • the cold drawing machine has been pulling, and the folding rod starts to support the tube.
  • the cold drawing machine passes through the three extension frames in turn, it will receive the signal from the proximity switch B on its surface and start the electric push rod and electromagnet. , in this way, the pipeline can be supported without affecting the normal operation of the cold drawing machine.
  • the cold drawing machine removes the restriction on the pipeline, so that the pipeline will roll to one side under the action of the inclined plane. In this way, manual picking is not required.
  • the receiving switch A When the cold drawing machine moves to the rear end of the casing, it will be sensed by the receiving switch A, so that the receiving switch A will conduct the signal to the receiving switch B, thus closing the receiving switch. B.
  • the electromagnet loses its magnetic force, the folding rod is closed under the action of gravity, and the electric push rod pulls the folding rod to return to its original position, which frees up the space and will not affect the normal operation of the cold drawing machine. .
  • FIG. 1 is a schematic diagram of the overall structure of a combined three-wire cold drawing machine according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of an extension frame of a combined three-wire cold drawing machine according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a feeding bin of a combined three-wire cold drawing machine according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of an arc baffle of a combined three-wire cold drawing machine according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of a drawing bin of a combined three-wire cold drawing machine according to an embodiment of the present invention.
  • a combined three-wire cold drawing machine according to an embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 5 .
  • a combined three-wire cold drawing machine provided by an embodiment of the present invention includes a casing 1 , a proximity switch A3 is installed on one side of the surface of the casing 1 , and a proximity switch A3 is installed on one side of the surface of the casing 1 .
  • the extension frame 4 has three extension frames.
  • An electric push rod 10 is installed at the bottom end of the inner wall of the extension frame 4.
  • a folding rod 8 is welded on the surface side of the electric push rod 10, and the surface side of the folding rod 8 is fixedly connected.
  • an iron block 9 an electromagnet 7 is installed on the inner wall of the extension frame 4, an elongated compartment 11 is installed on the surface of the outer casing 1, and a pulling block 13 is installed on the inner wall of the elongated compartment 11, and there are three pulling blocks 13, the said On one side of the surface of the elongated bin 11 is installed an upper bin 15 and there are three loading bins 15.
  • the inner wall of the upper bin 15 is welded with spring telescopic rods 16 and there are two spring telescopic rods 16.
  • the surface of the spring telescopic rod 16 An arc-shaped support plate 21 is welded on the other side, an arc-shaped baffle plate 17 is welded on the inner wall of the upper silo 15 , a hydraulic rod 19 is installed on one side of the surface of the upper silo 15 , and a switch 20 is installed on the surface of the casing 1 .
  • the three extension frames 4 are used to support and move the pipes pulled out by the cold drawing machine 2, so that the pipes will not fall due to their own weight and cause bending of the products. Feeding the material greatly reduces the consumption of manpower and makes the entire machine more automated.
  • a cold drawing machine 2 is mounted on the surface of the casing 1 .
  • the drawing of the pipe is performed by the cold drawing machine 2 .
  • a blocking block 6 is installed on the inner wall of the extension frame 4 .
  • a moving wheel 18 is installed on the surface of the arc baffle 17 .
  • the friction between the conduit and the arcuate baffle 17 is reduced.
  • a feeding port 12 is opened on the surface of the elongated bin 11
  • a powder inlet 14 is opened at the top of the surface of the elongated bin 11 .
  • the feeding port 12 facilitates the entry of the pipeline and restricts the pipeline from tampering, and the powder feeding port 14 facilitates adding lubricating powder.
  • the signal output end of the proximity switch A3 is signal-connected to the signal input end of the proximity switch B5 and the hydraulic rod 19 .
  • the proximity switch B5 and the hydraulic rod 19 are controlled by the proximity switch A3.
  • the power input end of the switch 20 is electrically connected to the output end of the external power supply through a wire, and the power output end of the switch 20 is connected to the cold drawing machine 2, the proximity switch A3 and the proximity switch B5 through the wire, so The power output end of the proximity switch B5 is electrically connected with the electric push rod 10 and the power input end of the electromagnet 7 through wires.
  • the switch 20 is a master switch, and the switch B5 controls the electric push rod 10 and the electromagnet 7 .
  • the spring telescopic rod 16 will firmly fix the tubes on the inner wall of the feeding bin 15.
  • the lubricating powder is added into the elongated bin 11 through the powder inlet 14, so that a small amount of lubricating powder can be filled into the elongated bin 11, which greatly reduces the use of the lubricating powder, and can make the lubricating powder fully
  • the proximity switch A3 When the cold drawing machine 2 is transported backward to the rear end of the casing 1, it will be sensed by the proximity switch A3.
  • the proximity switch is a kind of mechanical direct contact with moving parts that can The operating position switch, when the object is close to the sensing surface of the switch to the action distance, the switch can be actuated without mechanical contact and any pressure, thereby driving the DC electrical appliance or providing control instructions to the computer (plc) device.
  • Proximity switch is a switch-type sensor (ie, non-contact switch), which has the characteristics of travel switch and micro switch, and has sensing performance, reliable action, stable performance, fast frequency response, long service life, and anti-interference. Strong ability, etc., and has the characteristics of waterproof, shockproof, corrosion resistance and so on.
  • the products are inductive type, capacitive type, Hall type, AC type and DC type, so that the signal will be transmitted to the hydraulic rod 19, so that the hydraulic rod 19 will push the uppermost pipe of the upper silo 15 to push forward, and the pipe will be pushed forward. Push it into the feeding port 12 and pass through the drawing bin 11, so that when the cold drawing machine 2 returns to the surface of the drawing bin 11, the pipe can be directly cold drawn, which greatly reduces the labor consumption. After a tube is cold drawn, the lower tube will move upwards under the action of the thrust of the spring telescopic rod 16, and during the horizontal movement of the tube, the moving wheel 18 on the arc-shaped veneer 17 will play a lubricating role.
  • the proximity switch A3 is installed on the surface side of the shell 1
  • the extension frame 4 is installed on the surface side of the shell 1 and there are three extension frames 4, and the bottom end of the inner wall of the extension frame 4 is installed with an electric push rod 10
  • a folding rod 8 is welded on the surface of the electric push rod 10
  • an iron block 9 is fixedly connected to the surface of the folding rod 8
  • an electromagnet 7 is installed on the inner wall of the extension frame 4
  • a cold drawing machine 2 is installed on the surface of the outer casing 1
  • the extension frame 4 A blocking block 6 is installed on the inner wall
  • the signal output end of the proximity switch A3 is connected with the signal input end of the proximity switch B5 and the hydraulic rod 19.
  • the cold drawing machine 2 moves backward, it will encounter the first extension frame 4.
  • the proximity switch B5 on the extension frame 4 will receive the signal, so that the electromagnet 7 and the electric push rod 10 will be activated synchronously, and the electric push rod 10 will push the folding rod 8 forward.
  • the iron block 9 on the folding rod 8 It will be adsorbed by the electromagnet 7, so that the folding rod 8 will be unfolded.
  • the folding rod 8 since the three pipes are constantly being pulled by the cold drawing machine 2, the folding rod 8 will support the pipes.
  • the electric push rod 10 and the electromagnet 7 will be activated after receiving the signal by the proximity switch B5 on its surface, so that the pipeline can be supported without affecting the normal operation of the cold drawing machine 2.
  • the cold drawing machine 2 removes the restriction on the pipe, so that the pipe will roll to one side under the action of the inclined plane, so that manual picking is not required, and the cold drawing machine 2 moves to the shell 1.
  • the receiving switch A3 When the rear end of the coil is sensed by the receiving switch A3, the receiving switch A3 will conduct the signal to the receiving switch B5, thus closing the receiving switch B5, at this time the electromagnet 7 loses its magnetic force and folds under the action of gravity The rod 8 is closed, and the electric push rod 10 pulls the folding rod 8 back into place, so that the space is freed, and the normal operation of the cold drawing machine 2 will not be affected.
  • the present invention is a combined three-wire cold drawing machine, comprising 1. a casing; 2. a cold drawing machine; 3. a proximity switch A; 4. an extension frame; 5. a proximity switch B; 6. a blocking block; 7. Electromagnet; 8. Folding rod; 9. Iron block; 10. Electric push rod; 11. Elongating bin; 12. Feeding port; 13. Pulling block; 14. Powder feeding port; 15. Feeding bin; 16, spring telescopic rod; 17, arc baffle; 18, moving wheel; 19, hydraulic rod; 20, switch; The structure and principle are all known to those skilled in the art through technical manuals or through routine experimental methods.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)

Abstract

La présente invention concerne une machine d'étirage à froid à trois fils combinée. Un commutateur de proximité A (3) est monté sur un côté de la surface d'un logement (1), trois cadres d'extension (4) sont prévus, les cadres d'extension (4) sont montés sur un côté d'une surface du logement (1), une tige de poussée électrique (10) est montée à l'extrémité inférieure d'une paroi interne du cadre d'extension (4), une tige de pliage (8) est soudée à un côté d'une surface de la tige de poussée électrique (10), un bloc de fer (9) est raccordé à demeure à un côté d'une surface de la tige de pliage (8), un électro-aimant (7) est monté sur la paroi interne du cadre d'extension (4), un bac d'allongement (11) est monté sur la surface du logement (1), trois blocs de traction (13) sont prévus, les blocs de traction (13) sont montés sur une paroi interne du bac d'allongement (11), trois bacs d'alimentation (15) sont prévus, et les bacs d'alimentation (15) sont montés sur un côté d'une surface du bac d'allongement (11). Selon la machine d'étirage à froid à trois fils combinée, les trois cadres d'extension sont utilisés pour supporter et déplacer un tuyau étiré vers l'extérieur par la machine d'étirage à froid, de telle sorte que le tuyau ne peut pas tomber du fait du poids du tuyau et en tant que tel du cintrage d'un produit ; et l'alimentation est effectuée de manière synchrone et automatique au moyen des trois bacs d'alimentation, de telle sorte que l'utilisation de main-d'œuvre est réduite, et le degré d'automatisation de l'ensemble de la machine est supérieur.
PCT/CN2020/132035 2020-11-26 2020-11-27 Machine d'étirage à froid à trois fils combinée WO2022109965A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011350062.7 2020-11-26
CN202011350062.7A CN112474844A (zh) 2020-11-26 2020-11-26 一种组合式三线冷拔机

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WO2022109965A1 true WO2022109965A1 (fr) 2022-06-02

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Publication number Priority date Publication date Assignee Title
JP2005088082A (ja) * 2003-08-08 2005-04-07 Showa Denko Kk 引抜き加工具の取付状態調整方法
CN204602843U (zh) * 2015-04-04 2015-09-02 包头市胜德鑫特种型材制造有限公司 液压推送器
CN206794391U (zh) * 2017-05-26 2017-12-26 浙江博盛不锈钢制造有限公司 全自动三线冷拔机
CN210676394U (zh) * 2019-07-18 2020-06-05 湖州高林不锈钢管制造有限公司 一种不锈钢管的夹头机
CN111299340A (zh) * 2020-01-20 2020-06-19 安陆火凤凰铝材有限责任公司 一种铝管冷拔过程中的移料装置及方法
CN211803134U (zh) * 2020-03-18 2020-10-30 成都继瑜轨道装备有限公司 一种新型钢筋冷拔机

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