CN212703683U

CN212703683U - Seamless pipe perforating equipment with on-line ejector rod removal and ejector rod cooling circulation

Info

Publication number: CN212703683U
Application number: CN202021914052.7U
Authority: CN
Inventors: 欧阳建; 汤宏亮; 穆东; 周超群; 王建辉
Original assignee: CISDI Technology Research Center Co Ltd
Current assignee: CISDI Technology Research Center Co Ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-03-16
Anticipated expiration: 2030-09-04

Abstract

The utility model belongs to the technical field of the metallurgy, a take off ejector pin and ejector pin cooling cycle's seamless pipe perforation equipment on line is proposed, aim at solving and take off ejector pin and ejector pin cooling cycle problem on line. The punching equipment comprises a mandril, a puncher, a mandril removing system, a thrust system and a cooling circulation system. The trolley is driven by the power device to drive the ejector rod to move, and the ejector rod top enters the puncher, and then the trolley is locked through the thrust system; after the tubular billet is perforated and rolled in the perforating machine, opening the thrust system; and then the power device drives the trolley to draw the ejector rod out of the capillary, and the new ejector rod and the drawn old ejector rod are replaced by matching the cooling circulation system with the trolley and the lifting carrier roller, and then the next perforation is waited. The utility model quickly draws the ejector rod out of the capillary, thereby avoiding the problem of quick temperature drop of the capillary caused by long contact time between the capillary and the ejector rod; meanwhile, the ejector rod and the ejector head can enter the cooling circulation system to be fully cooled, and the service life of the ejector rod and the ejector head is guaranteed.

Description

Seamless pipe perforating equipment with on-line ejector rod removal and ejector rod cooling circulation

Technical Field

The utility model belongs to the technical field of the metallurgy, concretely relates to take off ejector pin and ejector pin cooling cycle's seamless pipe perforating equipment on line.

Background

The piercing and rolling of a seamless steel tube production is an important step, a solid tube blank is changed into a hollow tubular billet under the rolling of a piercing mill and a top head, after a mandril is drawn out of the tubular billet, the tubular billet is transversely conveyed to be prepared for the rolling process of the next procedure, and the mandril needs to return to the background of the piercing mill again for waiting for the piercing and rolling of the next tube blank. At present, the working procedure of removing the ejector rod from the capillary mainly comprises two modes of removing the ejector rod on line and removing the ejector rod off line.

The on-line ejector rod removing mode is that an ejector rod trolley is connected with the tail of an ejector rod, the ejector rod is directly drawn out of a capillary tube by the trolley after the punching is finished, and the trolley pushes the ejector rod to enter a background section of the puncher to prepare for next punching after the ejector rod is cooled. However, the ejector in the mode has insufficient cooling, serious continuous use burning loss, short service life of the ejector and long time for replacing the ejector once, and the production rhythm is influenced. In view of this, a process equipment for quickly replacing the plug is developed later, that is, after the ejector rod is pulled out of the hollow billet by the trolley, another plug is quickly replaced to perform the next piercing and rolling, and the replaced plug is subjected to cooling treatment.

The off-line ejector rod removing mode is that the ejector rod thrust device loosens the ejector rod after the piercing is finished, the capillary and the ejector rod are pulled to the bypass ejector rod removing position from the rolling line, the ejector rod removing device extracts the ejector rod from the capillary and enters an ejector rod cooling circulation system, meanwhile, another new ejector rod enters one section of the background of the piercing mill, and the ejector rod thrust block fixes the tail of the ejector rod to prepare for piercing and rolling of the next tube blank. The ejector head is fully cooled, the service life is long, the production rhythm is fast, but the contact time of the capillary and the ejector rod in the whole process is long, so that the temperature of the capillary is fast reduced, the energy consumption loss is large, and the next rolling deformation process is influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a take off ejector pin and ejector pin cooling cycle's seamless pipe perforation equipment on line aims at solving and takes off ejector pin and ejector pin cooling cycle problem on line.

The utility model discloses a realize through following technical scheme:

the utility model provides a pair of take off seamless pipe perforation equipment of ejector pin and ejector pin cooling cycle on line, including the ejector pin that has the top, the puncher, be used for clamping ejector pin afterbody and make the top business turn over puncher take off the ejector pin system on the ejector pin, be used for the lock to put the thrust system who takes off the ejector pin system, a cooling circulation system for changing the ejector pin, arrange thrust system, take off the ejector pin system in proper order by nearly extremely far along its vertical rolling central line in puncher one side, cooling circulation system arranges in one side of taking off the ejector pin system and parallels with it.

Adopt above-mentioned scheme, the utility model discloses having combined the advantage of two kinds of traditional ejector pin modes of taking off, can taking the ejector pin out rapidly after the perforation is accomplished, preventing that the capillary temperature drop is too fast, influences rolling process on next step, and the ejector pin of taking out gets into cooling device at once and is cooled by the water-cooling, has guaranteed that the ejector pin top can fully cool off, has promoted ejector pin top life.

Further, the ejector rod removing system consists of a power device, a trolley, a lifting carrier roller and a slide rail, the slide rail and the power device are sequentially arranged outside the side, deviating from the puncher, of the thrust system, the extending direction of the slide rail is parallel to the longitudinal rolling central line of the puncher, the trolley which is in sliding fit with the slide rail and used for clamping the tail part of the ejector rod is arranged on the slide rail, and the trolley is driven by the power device and locked by the thrust system; the lifting carrier roller is arranged between the power device and the thrust system and is positioned right below the ejector rod.

Furthermore, hydraulic quick-opening locking cylinders are arranged on the thrust system and the trolley.

Further, the slide rail is double guide rail, and the lifting support roller sets up to a plurality ofly to along the longitudinal rolling central line interval arrangement of piercing mill and be located between the double guide rail.

Furthermore, the cooling circulation system comprises a material pushing and placing device matched with the trolley and the lifting carrier roller, the material pushing and placing device is arranged into an upper layer and a lower layer, the lower layer is used for pushing out the old ejector rod and placing the new ejector rod, and the upper layer is used for pushing out the new ejector rod and placing the old ejector rod, so that the mutual synchronous replacement of the new ejector rod and the old ejector rod is realized.

Furthermore, the cooling circulation system also comprises a cooling device for cooling the ejector rod, a feeding rack for placing a new ejector rod and a discharging rack for placing an old ejector rod.

Furthermore, the feeding rack and the discharging rack are arranged up and down, and the cooling device adopts a cooling water tank and is positioned between the lower layer of the poking and placing device and the discharging rack.

The utility model has the advantages that:

1. the utility model provides a can realize taking off ejector pin and ejector pin cooling cycle's seamless pipe perforation equipment on line, it is long with ejector pin contact time to have avoided traditional off-line to take off the hollow billet that the ejector pin mode arouses, and the shortcoming that the hollow billet temperature dropped fast has avoided taking off the ejector pin top cooling that the ejector pin mode caused on line again simultaneously inadequately, the shortcoming of short-lived.

2. The utility model adopts the equipment to carry out the cooling circulation of the ejector rod and the ejector rod, and has the characteristics of less equipment action, short time for replacing the ejector rod, compact rhythm and high production efficiency; meanwhile, the cooling circulation system implements on-line three-dimensional circulation on the ejector rod, the occupied area is small, and the equipment investment is low.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.

Drawings

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings, in which:

fig. 1 is a process layout diagram of the present invention.

Description of the drawings: the device comprises a power device 1, a trolley 2, a material poking and discharging device 3, a lifting carrier roller 4, a mandril 5, a slide rail 6, a thrust system 7, a puncher 8, a cooling device 9, a feeding rack 10 and a discharging rack 11.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present embodiment, it should be understood that, if there are orientations or positional relationships indicated by terms "upper", "lower", "left", "right", "front", "rear", etc. based on the orientations or positional relationships shown in the drawings, the description is only for convenience and simplicity, and the indication or suggestion that the indicated device or element must have a specific orientation, be configured in a specific orientation, and operate, therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes, and are not to be construed as limitations on the technical solution, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

As shown in fig. 1, the seamless pipe piercing apparatus with on-line knockout pin and knockout pin cooling cycle mentioned in this embodiment includes a knockout pin 5 having a head (not marked), a piercing machine 8, a knockout pin system for clamping the tail of the knockout pin 5 and making the head on the top of the knockout pin 5 enter and exit the piercing machine 8, a thrust system 7 for locking and releasing the knockout pin system, and a cooling cycle system for replacing the knockout pin 5, wherein the thrust system 7 and the knockout pin system are arranged in sequence from near to far along the longitudinal rolling center line on the piercing machine 8 side, and the cooling cycle system is arranged on the side surface of the knockout pin system and parallel to the same.

Specifically, the ejector rod removing system comprises a power device 1, a trolley 2, a lifting carrier roller 4 and a slide rail 6, the slide rail 6 and the power device 1 are sequentially arranged outside the deviation side of a thrust system 7 departing from a puncher 8, the extension direction of the slide rail 6 is parallel to the longitudinal rolling central line of the puncher, the trolley 2 which is in sliding fit with the slide rail 6 and used for clamping the tail part of the ejector rod 5 is arranged on the slide rail 6, the trolley 2 is driven by the power device 1 and locked by the thrust system 7, namely, the thrust system 7 can fix and release the trolley 2, the front extension of the ejector rod 5 top head can be adjusted by fixing the position of the trolley 2, the ejector rod removing system mainly controls the ejector rod 5 to rapidly advance and retreat and fix the ejector rod 5, the tail part of the ejector rod 5 is clamped in a U-shaped groove (not shown) at the front end of the trolley 2, so that the trolley 2 can push and pull the ejector rod 5 to advance or, the mandril 5 is prevented from deviating during perforation; the lifting carrier roller 4 is arranged between the power device 1 and the thrust system 7 and is positioned right below the mandril 5. The cooling circulation system is composed of a poking and discharging device 3, a cooling device 9, a feeding rack 10 and a discharging rack 11, and mainly comprises a lifting carrier roller 4 which is used for poking the ejector rod 5 pulled out from the capillary and placing a new ejector rod 5, and meanwhile, the poked old ejector rod 5 enters a water tank of the cooling device for cooling so as to recycle and cool the ejector rod for one time.

In this embodiment, the thrust system 7 and the trolley 2 are both provided with hydraulic quick-opening locking cylinders. So that the thrust system can quickly lock and release the trolley, and the trolley can quickly lock and release the tail part of the ejector rod.

The slide rail 6 in the embodiment adopts double guide rails, and the lifting carrier rollers 4 are arranged in a plurality of numbers and are arranged at intervals along the longitudinal rolling central line of the perforating machine and positioned between the double guide rails.

The following describes a perforation process of the present apparatus, comprising: firstly, a power device 1 drives a trolley 2 to drive a mandril 5 to move and enable the mandril top to enter a puncher 8, and then the trolley is locked through a thrust system 7; after the tubular billet is perforated and rolled in the perforating machine, opening the thrust system; and then the power device drives the trolley to draw the ejector rod out of the capillary, and the new ejector rod and the drawn old ejector rod are replaced by matching the trolley with the cooling circulating system and the lifting carrier roller 4 to wait for the next perforation. Wherein, the thrust system is used for controlling the trolley to adjust the front extension of the ejector pin top. The height of the lifting carrier roller is also adjustable to adapt to the central height of the ejector rods with different diameters.

The detailed working process comprises the following steps: the thrust system 7 sets for the top and stretches forward the position, during the perforation, under power device 1 drive, dolly 2 drives ejector pin 5 fast migration to a section of 8 backstage in the piercing mill (the corresponding low level that descends in proper order of lift bearing roller 4 avoids interfering with dolly 2), 5 tops of ejector pin get into piercing mill 8, 5 afterbody locks ejector pin 5 of dolly front end buckle, thrust system 7 locks dolly 2, waits to perforate the rolling. After the punching is finished, the hydraulic quick-opening locking cylinder of the thrust system 7 is opened, meanwhile, the buckle at the front end of the trolley 2 is opened, the U-shaped groove at the front end of the trolley hooks the ejector rod 5 to quickly return, the old ejector rod is pulled out of the capillary, and meanwhile, the lifting roller table 4 also sequentially rises to the bottom height of the old ejector rod and supports the old ejector rod to stably return. After the old ejector rod is retreated to the designated position, the material poking and placing device 3 pokes the old ejector rod out, meanwhile, the material poking and placing device 3 puts another new ejector rod on the lifting roller table 4, the tail part of the new ejector rod is just clamped into the U-shaped groove, and then the trolley 2 is ready to send the new ejector rod into the background section of the puncher 8. The old ejector pin of dialling out gets into cooling device 9 from dialling to put the upper strata and soaks the cooling, and the medium among the cooling device adopts liquid water usually, and water in the cooling device constantly circulates through water treatment system, guarantees the ejector pin cooling effect. The old ejector rod after being fully cooled by the cooling device enters the feeding rack 11, and then stops on the material poking and discharging device 3 through equipment such as a material poking hook and an inclined rack to wait for the next ejector rod releasing process. When the ejector rod 5 is damaged and needs to be replaced, the side material blocking arm of the cooling device is opened, the ejector rod 5 enters the blanking rack 11 of the old ejector rod, and the new ejector rod directly enters the ejector rod large circulation through the feeding rack 10 of the new ejector rod.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is obvious that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The seamless pipe punching equipment comprises an ejector rod (5) with an ejector head and a puncher (8), and is characterized by further comprising an ejector rod removing system used for clamping the tail of the ejector rod and enabling the ejector head on the ejector rod to enter and exit the puncher, a thrust system (7) used for locking and releasing the ejector rod removing system and a cooling circulation system used for replacing the ejector rod, wherein the thrust system and the ejector rod removing system are sequentially arranged on one side of the puncher along the longitudinal rolling center line of the puncher from near to far, and the cooling circulation system is arranged on one side of the ejector rod removing system and is parallel to the ejector rod removing system.

2. The on-line mandrel-removing and mandrel-cooling circulating seamless pipe perforating equipment according to claim 1, wherein the mandrel-removing system is composed of a power device (1), a trolley (2), a lifting carrier roller (4) and a slide rail (6), the slide rail and the power device are sequentially arranged outside the side of the thrust system departing from the perforating machine, the extension direction of the slide rail is parallel to the longitudinal rolling central line of the perforating machine, the slide rail is provided with the trolley which is in sliding fit with the slide rail and is used for clamping the tail part of the mandrel, and the trolley is driven by the power device and locked by the thrust system; the lifting carrier roller is arranged between the power device and the thrust system and is positioned right below the ejector rod.

3. The on-line ejector rod and ejector rod cooling cycle seamless pipe perforating equipment as claimed in claim 2, wherein the thrust system and the trolley are provided with hydraulic quick-opening locking cylinders.

4. The on-line knockout pin and knockout pin cooling cycle seamless tube piercing apparatus according to claim 2, wherein the slide rail is a double guide rail, and the elevating carrier rollers are provided in plurality and are arranged at intervals along the longitudinal rolling center line of the piercing mill and between the double guide rails.