CN111659744A - Steel pipe pressure head system - Google Patents

Steel pipe pressure head system Download PDF

Info

Publication number
CN111659744A
CN111659744A CN202010516580.5A CN202010516580A CN111659744A CN 111659744 A CN111659744 A CN 111659744A CN 202010516580 A CN202010516580 A CN 202010516580A CN 111659744 A CN111659744 A CN 111659744A
Authority
CN
China
Prior art keywords
steel pipe
frame
heating
support
supporting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010516580.5A
Other languages
Chinese (zh)
Inventor
陈华姣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo Yongxin Steel Tube Co ltd
Original Assignee
Ningbo Yongxin Steel Tube Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ningbo Yongxin Steel Tube Co ltd filed Critical Ningbo Yongxin Steel Tube Co ltd
Priority to CN202010516580.5A priority Critical patent/CN111659744A/en
Publication of CN111659744A publication Critical patent/CN111659744A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C5/00Pointing; Push-pointing
    • B21C5/003Pointing; Push-pointing of hollow material, e.g. tube
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C9/00Cooling, heating or lubricating drawing material
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00Details of electric heating devices
    • H05B1/02Automatic switching arrangements specially adapted to apparatus ; Control of heating devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

The invention discloses a steel pipe pressure head system, which comprises a pressure head machine, an electric heating device, a first supporting device and a second supporting device, wherein the first supporting device is arranged on the pressure head machine; the first supporting device is arranged on the front side of the electric heating device and is used for supporting the steel pipe when the head is heated; the second supporting device is arranged on the front side of the heading machine and is used for supporting the steel pipe when the head of the steel pipe is pressed; the heading machine is positioned at one side of the electric heating device. The electric heating device of the steel pipe pressure head system is high in heating efficiency, environment-friendly and sanitary, coal is not needed, labor cost can be reduced, and labor intensity is reduced.

Description

Steel pipe pressure head system
Technical Field
The invention relates to the technical field of steel pipe production equipment, in particular to a steel pipe pressure head system.
Background
In the process of the steel pipe production technology, the steel pipe pressure head is one of the technologies, and the head of the steel pipe needs to be heated before the pressure head and the inner pressure head. In the prior art, the head of the steel pipe is generally heated by a heating furnace, the heating time of the heating mode is long, the heating furnace uses coal as fuel, a large amount of smoke can be generated during combustion, air pollution is easy, the heating furnace is not environment-friendly, the coal is required to be transported manually in the using process, and the labor cost is high. In addition, the labor intensity is very high because the steel pipe needs to be supported manually in the working process.
Disclosure of Invention
The invention aims to provide a steel tube pressure head system, an electric heating device of the steel tube pressure head system has high heating efficiency, does not need to use coal, is environment-friendly and sanitary, and can reduce labor cost and labor intensity.
The technical scheme of the invention is that the steel pipe pressure head system with the following structure is provided, which comprises a pressure head machine, an electric heating device, a first supporting device and a second supporting device; the first supporting device is arranged on the front side of the electric heating device and is used for supporting the steel pipe when the head is heated; the second supporting device is arranged on the front side of the heading machine and is used for supporting the steel pipe when the head of the steel pipe is pressed; the heading machine is positioned at one side of the electric heating device.
After adopting the structure, compared with the prior art, the steel pipe pressure head system has the following advantages:
the steel pipe pressure head system comprises the pressure head machine, the electric heating device, the first supporting device and the second supporting device, the electric heating device is very high in heating efficiency, the electric heating device can be started by electricity, fuel is not needed, the steel pipe pressure head system is environment-friendly and sanitary, and labor cost can be reduced. The first supporting device is used for supporting the steel pipe when the head is heated, and the second supporting device is used for supporting the steel pipe when the head pressure head is heated, so that the labor intensity is greatly reduced.
As an improvement, the heating device comprises a base, an electric heater and a control box; the electric heater and the control box are both arranged on the base; the electric heater is electrically connected with the control box; the electric heater is provided with a heating cavity for inserting the head of the steel pipe. After adopting this kind of structure, start electric heater during the heating to with the steel pipe head insert the heating chamber in, electric heater alright heat the steel pipe head, heating efficiency is very high, electric heater power consumption just can start, need not use fuel, environmental protection and health can also reduce the cost of labor.
As an improvement, the electric heater comprises a heating seat, a heating ring and a heating circuit, the heating seat is connected to the base, the heating ring is connected to the heating seat, the heating circuit is arranged in the control box, and the heating ring is electrically connected with the heating circuit; the inner cavity of the heating ring and the heating cavity. After adopting this kind of structure, electric heater simple structure, the equipment is convenient, and the heating ring heating is effectual, can heat steel pipe head all around.
As an improvement, a steel pipe head support frame is arranged on the base and in front of the heater, the support frame comprises a fixing frame and a support ring, and the support ring is arranged on the fixing frame and is positioned in front of the heater. After the structure is adopted, when the head of the steel pipe is heated, the head of the steel pipe can be supported in the supporting ring, and labor is saved.
As an improvement, the first supporting device comprises a first supporting frame, and the first supporting frame comprises a horizontal frame and a transfer frame; the horizontal frame is used for placing a steel pipe; one end of the horizontal frame is connected with one end of the transfer frame; and a rolling component is arranged on the end part of the horizontal frame connected with the transfer frame. After adopting this kind of structure, the steel pipe is placed on the horizontal stand, and the manual work moves the tip of the steel pipe that will heat to the rolling subassembly on, then receives the rolling subassembly effect to deliver to heating device with the head of steel pipe in, sends the head of steel pipe to the heading machine through the transfer frame after the heating is accomplished, and this process only needs to consume a bit of manpower, very labour saving and time saving, greatly reduced intensity of labour.
As an improvement, the horizontal frame comprises a first frame body; the first frame body on be equipped with horizontal holding surface, the transfer frame with first frame body be connected. After adopting this kind of structure, the steel pipe on the horizontal stand supports through first support body, simple structure, convenient to use.
As an improvement, the end part of the first frame body, which is close to the transfer frame, is provided with a first limiting column, the other end of the first frame body is provided with a second limiting column, and the height of the first limiting column is lower than that of the second limiting column. After adopting this kind of structure, first spacing post and second spacing post be used for spacing to the steel pipe, because the height of first spacing post is lower, the workman can jump the head of steel pipe from first spacing post very easily when rotating the steel pipe.
As an improvement, the rolling assembly is arranged at the end part of the first frame body and positioned at the outer side of the first limiting column; the rolling assembly comprises a rolling part and bearings arranged at two ends of the rolling part; the bearing is fixedly connected to the side wall of the end part of the first frame body; the rolling piece is horizontally arranged, and a gap is reserved between the rolling piece and the first frame body; the upper side of the rolling piece is higher than the horizontal supporting surface of the first frame body. After adopting this kind of structure, rolling subassembly simple structure, preparation and use are more convenient.
As an improvement, the second supporting device comprises a base body, a second frame body and a supporting head, the second frame body is arranged on the base body, and the supporting head is arranged on the second frame body; the supporting head comprises two side plates and a cross bar connected between the two side plates; when the steel pipe pressure head is used, the tail part of the steel pipe is supported on the cross bar. After adopting this kind of structure, second strutting arrangement simple structure, convenient to use.
As an improvement, a limiting plate for limiting the steel pipe is connected outside the side plate on one side. After adopting this kind of structure, limiting plate have a spacing effect to the steel pipe.
Drawings
Figure 1 is a schematic diagram of the construction of a steel pipe ram system of the present invention.
Fig. 2 is a schematic structural view of an electric heating apparatus of the steel pipe ram system of the present invention.
Figure 3 is a schematic diagram of the first support means of the steel pipe ram system of the present invention.
Figure 4 is a schematic diagram of the rolling assembly of the steel pipe ram system of the present invention.
Figure 5 is a schematic diagram of the second support means of the steel pipe ram system of the present invention.
Shown in the figure: 1. the base, 101, the platform, 102, the supporting leg, 2, the heating seat, 3, the heating ring, 4, gather hot cover, 5, the mount, 6, the support ring, 7, the baffle, 8, the control box, 9, first support frame, 901, first support body, 902, horizontal holding surface, 903, first inclined plane, 904, first spacing post, 905, the spacing post of second, 906, the supporting shoe, 907, the rolling member, 908, the bearing, 909, the transfer frame, 910, the second inclined plane, 10, the second holding surface, 11, the pedestal, 12, the second support body, 13, the curb plate, 14, the cross bar, 15, the limiting plate, 16, the indenter.
Detailed Description
For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification.
In the drawings, the thickness, size, and shape of an object have been slightly exaggerated for convenience of explanation. The figures are purely diagrammatic and not drawn to scale.
It will be further understood that the terms "comprises," "comprising," "includes," "including," "has," "having," "contains," and/or "containing," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
As shown in fig. 1, the present invention discloses a steel tube heading system, which comprises a heading machine 16, an electric heating device, a first supporting device and a second supporting device; the first supporting device is arranged on the front side of the electric heating device and is used for supporting the steel pipe when the head is heated; the second supporting device is arranged on the front side of the heading machine 16 and is used for supporting the steel pipe when the head is heading; the indenter 16 is located on one side of the electrical heating device.
As shown in fig. 2, the electric heating device includes a base 1, an electric heater, and a control box 8.
The base 1 comprises a platform 101 and supporting legs 102, wherein the supporting legs 102 are connected to the lower surface of the platform 101.
The electric heater comprises a heating seat 2, a heating ring 3 and a heating circuit. The heating base 2 is installed on the upper surface of one side of the platform 101, the heating base 2 plays a supporting role, and the heating base 2 is made of an insulating and high temperature resistant material, such as cement. The heating ring 3 is connected to the heating seat 2, and the heating ring 3 is spiral. The middle inner cavity of the heating ring 3 is a heating cavity. During heating, the head of the steel pipe is inserted into the heating cavity from the opening of the heating ring 3 far away from the heating seat. The heating seat 2 is also provided with a heat collecting cover 4, the heat collecting cover 4 is conical, and the heat collecting cover 4 is made of iron. The heat collecting cover 4 covers the heating ring 3. The heating circuit is arranged in the control box 8, and the heating circuit is electrically connected with the heating ring 3 and the control circuit in the control box 8.
A steel pipe head supporting frame is arranged on the same side of the platform 101 of the base 1 and located on the heating ring 3, and the steel pipe head supporting frame is located in front of the electric heater. The steel pipe head support frame include mount 5 and support ring 6, mount 5 fix the platform of base 1 on, support ring 6 connect mount 5 on, this support ring 6 be located the place ahead of heating ring 3 and the inner chamber of this support ring 6 with the heating chamber of heating ring 3 align.
The base 1 is also provided with a baffle 7, the baffle 7 is positioned in front of the control box 8, the length of the baffle 7 is greater than that of the control box 8, and the baffle can shield the lower part of the control box 8. The baffle 7 is close to one side of the support ring 6 and is provided with a notch 701, and the notch 701 is positioned at one side of the support ring 6.
As shown in fig. 3 and 4, the first support device comprises a first support frame 9 and a second support frame 10. The first support frame 9 comprises a horizontal frame and a transfer frame.
The horizontal shelf includes a first shelf body 901. A horizontal supporting surface 902 is arranged on the first frame body 901; the transfer rack is connected with the first rack body 901. When the steel pipe was placed on the horizontal stand, the one end of steel pipe supported on first support body 901, and the other end of steel pipe supports on second support frame 10, and the in-process of use can be drawn close or pull open the distance between first support body 901 and the second support frame 10 according to the length of steel pipe.
The end part of the first frame body 901 close to the transfer frame is provided with a first limiting column 904, the other end of the first frame body 901 is provided with a second limiting column 905, and the height of the first limiting column 904 is lower than that of the second limiting column 905. The first limiting column 904 and the second limiting column 905 are fixed on the first frame body 901 in a welding mode. The outside of first spacing post 904 still be equipped with supporting shoe 906, supporting shoe 906 can increase the intensity of first spacing post 904.
The rolling assembly comprises a rolling member 907 and bearings 908 arranged at two ends of the rolling member 907. The rolling member 907 is in a shuttle shape, and the middle of the rolling member 907 is larger than the two ends of the rolling member 907. The rolling members 907 and the bearings 908 are connected to the side walls of the first frame 901 and are located outside the supporting blocks 906. The two bearings 908 are fixedly connected to the side wall of the end of the first frame 901 through a bracket, and a gap is left between the rolling member 907 and the side wall of the first frame 901, so that the rolling member 907 can roll. The upper side of the rolling member 907 is higher than the horizontal supporting surface 902 of the first frame 901, so that a certain distance is left between the end of the steel pipe placed on the rolling member 907 and the horizontal supporting surface 902, and the purpose of doing so is not to influence the back and forth movement of the steel pipe. A first inclined plane 903 is arranged at the end of the first frame 901 and on the outer side of the rolling assembly.
A second inclined surface 910 is arranged on the transfer frame 909, and the inclined angle of the second inclined surface 910 is the same as the inclined angle of the first inclined surface 903; the end of the transfer frame 909 is connected to the end of the first frame 901 having the first inclined plane 903, and the first inclined plane 903 and the second inclined plane 910 are on the same plane.
The second support frame 10 also comprises a horizontal frame and a transfer frame which are the same as the first support frame 9, and the second support frame 10 is different from the first support frame 9 in that the second support frame 10 is not provided with a rolling assembly. The second support frame 10 and the first support frame 9 are arranged in parallel and the first support frame 9 and the second support frame 10 are aligned with each other.
The second supporting device comprises a base body 11, a second frame body 12 and a supporting head, wherein the second frame body 12 is arranged on the base body 11, and the supporting head is arranged on the second frame body 12; the supporting head comprises two side plates 13 and a cross bar 14 connected between the two side plates 13; when the steel pipe is pressed, the tail part of the steel pipe is supported on the cross bar 14. And a limiting plate 15 for limiting the steel pipe is connected outside the side plate 13 on one side. The second supporting device is disposed at one side of the second supporting frame 10 and aligned with the second supporting frame 10. The height of the second supporting device is lower than that of the second supporting frame 10.
When the steel pipe pressure head system works, the pressure head machine and the electric heating device are started. And placing the steel pipe on the first support device, wherein two ends of the steel pipe are respectively supported on the first support frame 9 and the second support frame 10. When the steel pipe needs to be heated, the tail end of the steel pipe is manually grabbed, the head of the steel pipe is lifted to enable the head of the steel pipe to jump over the first limiting column 904 and be transferred to the rolling piece 907, the rolling piece 907 is pushed, the steel pipe is sent to the heating device to be heated, and meanwhile the tail end of the steel pipe is placed on the second support frame 10. After the heating is completed, the steel pipe is pulled back, the transfer frame 909 is moved, the steel pipe slides down along the second inclined surface 910 of the transfer frame 909, then the head of the steel pipe is inserted into the heading machine, then the tail of the steel pipe is placed on the supporting head of the second supporting device, and the heading process is completed after the heading is completed.

Claims (10)

1. A steel pipe ram system characterized in that: the device comprises a heading machine, an electric heating device, a first supporting device and a second supporting device; the first supporting device is arranged on the front side of the electric heating device and is used for supporting the steel pipe when the head is heated; the second supporting device is arranged on the front side of the heading machine and is used for supporting the steel pipe when the head of the steel pipe is pressed; the heading machine is positioned at one side of the electric heating device.
2. A steel pipe ram system as claimed in claim 1 wherein: the electric heating device comprises a base, an electric heater and a control box; the electric heater and the control box are both arranged on the base; the electric heater is electrically connected with the control box; the electric heater is provided with a heating cavity for inserting the head of the steel pipe.
3. A steel pipe ram system as claimed in claim 2 wherein: the electric heater comprises a heating seat, a heating ring and a heating circuit, the heating seat is connected to the base, the heating ring is connected to the heating seat, the heating circuit is arranged in the control box, and the heating ring is electrically connected with the heating circuit; the inner cavity of the heating ring and the heating cavity.
4. A steel pipe ram system as claimed in claim 2 wherein: the base on and be located the place ahead of heater be equipped with steel pipe head support frame, the support frame include mount and support ring, the support ring locate the mount on the support ring be located the place ahead of heater.
5. A steel pipe ram system as claimed in claim 1 wherein: the first support device comprises a first support frame, and the first support frame comprises a horizontal frame and a transfer frame; the horizontal frame is used for placing a steel pipe; one end of the horizontal frame is connected with one end of the transfer frame; and a rolling component is arranged on the end part of the horizontal frame connected with the transfer frame.
6. The steel pipe ram system of claim 5, wherein: the horizontal frame comprises a first frame body; the first frame body on be equipped with horizontal holding surface, the transfer frame with first frame body be connected.
7. The steel pipe ram system of claim 6, wherein: the first support body be close to the tip of transfer frame be equipped with first spacing post, the other end of first support body be equipped with the spacing post of second, the height of first spacing post be less than the height of the spacing post of second.
8. The steel pipe ram system of claim 7, wherein: the rolling assembly is arranged at the end part of the first frame body and positioned at the outer side of the first limiting column; the rolling assembly comprises a rolling part and bearings arranged at two ends of the rolling part; the bearing is fixedly connected to the side wall of the end part of the first frame body; the rolling piece is horizontally arranged, and a gap is reserved between the rolling piece and the first frame body; the upper side of the rolling piece is higher than the horizontal supporting surface of the first frame body.
9. A steel pipe ram system as claimed in claim 1 wherein: the second support device comprises a seat body, a second frame body and a support head, the second frame body is arranged on the seat body, and the support head is arranged on the second frame body; the supporting head comprises two side plates and a cross bar connected between the two side plates; when the steel pipe pressure head is used, the tail part of the steel pipe is supported on the cross bar.
10. A steel pipe ram system as claimed in claim 9 wherein: and a limiting plate for limiting the steel pipe is connected outside the side plate on one side.
CN202010516580.5A 2020-06-09 2020-06-09 Steel pipe pressure head system Pending CN111659744A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010516580.5A CN111659744A (en) 2020-06-09 2020-06-09 Steel pipe pressure head system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010516580.5A CN111659744A (en) 2020-06-09 2020-06-09 Steel pipe pressure head system

Publications (1)

Publication Number Publication Date
CN111659744A true CN111659744A (en) 2020-09-15

Family

ID=72387014

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010516580.5A Pending CN111659744A (en) 2020-06-09 2020-06-09 Steel pipe pressure head system

Country Status (1)

Country Link
CN (1) CN111659744A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012121034A (en) * 2010-12-06 2012-06-28 Nanbu Seisakusho:Kk Partial heating and working device, and progressive die working system provided with the same
CN203144476U (en) * 2013-03-27 2013-08-21 励茂华 Steel pipe induction heating device with heat gathering hood
CN203541133U (en) * 2013-10-24 2014-04-16 浙江金航钢管科技有限公司 Steel tube heater
CN205165380U (en) * 2015-10-20 2016-04-20 重庆市汇畅钢管制造有限公司 Pipe heading machine material feeding unit
CN105783254A (en) * 2016-05-11 2016-07-20 句容鼎勤容惠金属制品有限公司 Heat collection boiler with heat collection hood
CN109332405A (en) * 2018-10-12 2019-02-15 浙江中星钢管机械有限公司 A kind of self-feeding steel pipe heading machine
CN109647920A (en) * 2018-12-19 2019-04-19 贵州航天南海科技有限责任公司 A kind of straightening wire drawing all-in-one machine
CN210253909U (en) * 2019-06-20 2020-04-07 张家港市鸿盛精密制管有限公司 Steel pipe flaring production line device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012121034A (en) * 2010-12-06 2012-06-28 Nanbu Seisakusho:Kk Partial heating and working device, and progressive die working system provided with the same
CN203144476U (en) * 2013-03-27 2013-08-21 励茂华 Steel pipe induction heating device with heat gathering hood
CN203541133U (en) * 2013-10-24 2014-04-16 浙江金航钢管科技有限公司 Steel tube heater
CN205165380U (en) * 2015-10-20 2016-04-20 重庆市汇畅钢管制造有限公司 Pipe heading machine material feeding unit
CN105783254A (en) * 2016-05-11 2016-07-20 句容鼎勤容惠金属制品有限公司 Heat collection boiler with heat collection hood
CN109332405A (en) * 2018-10-12 2019-02-15 浙江中星钢管机械有限公司 A kind of self-feeding steel pipe heading machine
CN109647920A (en) * 2018-12-19 2019-04-19 贵州航天南海科技有限责任公司 A kind of straightening wire drawing all-in-one machine
CN210253909U (en) * 2019-06-20 2020-04-07 张家港市鸿盛精密制管有限公司 Steel pipe flaring production line device

Similar Documents

Publication Publication Date Title
CN206898236U (en) A kind of efficient Frequency Induction Heating pipe-expanding machine
CN107838544A (en) Frequency Induction Heating welding machine
CN111659744A (en) Steel pipe pressure head system
CN201904937U (en) Combined electrode self-baking device capable of unshelling for large submerged arc furnace
CN208485319U (en) A kind of electrothermal tube feeding device
CN204268902U (en) A kind of electric induction furnace steel scrap continuously pre-heating promotes feeding device
CN207615858U (en) Frequency Induction Heating welding machine
CN212013086U (en) Steel pipe head heating device
CN204220900U (en) A kind of forging quantity-produced heated line
CN202709718U (en) Automatic telescopic combustion device of kiln
CN208917055U (en) A kind of pool wall splicing device of liquid-crystalline glasses kiln
CN208662366U (en) A kind of electrothermal tube augomatic syphon device
CN208745446U (en) A kind of corrugated board hot pressing laminating apparatus
CN204800108U (en) Assembly welding make -up machine of no fin micro channel flat tube heat exchanger
CN207713837U (en) A kind of carbon cathode blocks preheating device
CN208717380U (en) A kind of heated by electrodes equipment of stabiliser bar
CN209561834U (en) A kind of crimp connection fixture of motor outlet wire terminal
CN208392143U (en) A kind of heat-insulation foam material grooving apparatus
CN206973895U (en) A kind of large-size rolling bearing oil bath heater
CN207449050U (en) Screw rod cleaning device
CN108543884A (en) A kind of electrothermal tube augomatic syphon device
CN214706553U (en) Weak current engineering is pyrocondensation device for wiring
CN208745381U (en) A kind of thermal control machine rack
CN217394105U (en) Welding preheating device with embedded air deflector
CN110523892A (en) Reinforcing bar apparatus for correcting based on outdoor electric construction usage

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20200915