Cold rolling uncoiler guide sleeve repair method and device thereof

A repair method and guide sleeve technology are applied in the field of guide sleeve repair of a cold rolling decoiler and its device, which can solve the problems of similar hot working hardness, long maintenance period and high maintenance cost, and achieve long service life, avoid equipment failure, and easily effect of operation

Inactive Publication Date: 2016-03-30
浙江龙盛薄板有限公司
View PDF1 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome a series of problems brought about by the traditional structure, such as expensive spare parts, non-common use after maintenance, high maintenance cost, long maintenance cycle and similar thermal processing hardness, the present inve

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cold rolling uncoiler guide sleeve repair method and device thereof
  • Cold rolling uncoiler guide sleeve repair method and device thereof
  • Cold rolling uncoiler guide sleeve repair method and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0051] Embodiment 1 The method for repairing the guide sleeve of a cold rolling decoiler according to the present invention includes the following steps:

[0052] 1) Disassemble the worn guide sleeve, and process the inner hole of the guide sleeve on a lathe with a single cut of 1-2mm;

[0053] 2) Machining an undercut groove on the milling machine at a position 200mm from the end of the inner hole wall on both sides of the guide sleeve;

[0054] 3) Machining axial grooves on both ends of the guide sleeve on the slotting machine;

[0055] 4) Process the copper sleeve on the lathe to ensure the transitional fit between the copper sleeve and the inner hole of the guide sleeve, the inner hole of the copper sleeve and the mandrel, and under the premise of meeting the stress requirements, the actual axial processing length of the copper sleeve is greater than the theoretically calculated copper The minimum axial length of the sleeve (if there are multiple calculation results, take the theo...

Example Embodiment

[0074] Embodiment 2 A device constructed according to the repair method of the present invention includes a guide sleeve 1, a mandrel 4 and a sector plate 3. The outer wall of the guide sleeve 1 is provided with a plurality of inclined wedges 11 with slopes. The slope direction is the same, and each wedge is correspondingly installed with a sector plate 3, the sector plate 3 is slidingly fitted with the guide sleeve 1 through the wedge 11, and both ends of the guide sleeve 1 are respectively inlaid with copper sleeves 2 in the axial direction. , The outer ring of the copper sleeve 2 is symmetrically provided with two engaging parts 21 for clamping in the guide sleeve groove 12, the copper sleeve 2 is in transitional fit with the inner hole of the guide sleeve 1, and the mandrel 4 is inserted into the inner hole of the copper sleeve 2, the mandrel 4 is fixed to the copper sleeve 2 by the connecting key 41 axially arranged on the side wall of the mandrel, and there is a gap betwee...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Yield strengthaaaaaaaaaa
Login to view more

Abstract

The invention discloses a cold rolling uncoiler guide sleeve repair method and a device thereof. The method comprises the following steps: a worn guide sleeve is dismounted and processed to a proper size, and a tool withdrawal groove and an axial groove are processed; copper sleeves are processed on a lathe to guarantee transitional fit between the copper sleeves and an inner hole of the guide sleeve and clearance fit between inner holes of the copper sleeves and mandrels; after parts are assembled, no-load actions are repeated for several times; and after the actions are stabilized, a steel coil is loaded for trial turning. The device, built according to the repair method, comprises the guide sleeve, the mandrel and a fan-shaped plate; the copper sleeves are respectively embedded in the two ends of the guide sleeve in the axial direction; two clamping parts are symmetrically arranged on outer rings of the copper sleeves; the copper sleeves and the inner hole of the guide sleeve are in transitional fit; and the mandrels are inserted in the inner holes of the copper sleeves, are fixed with the copper sleeves through connecting keys axially arranged on the side walls of the mandrels, and are in clearance fit with the copper sleeves. The repair method and device have the following beneficial effects: the mandrels are not worn; after the service life of the copper sleeves is used up, the copper sleeves with lower cost are only replaced; the maintenance is convenient; the operation is easy; the stock of spare parts is reduced; and funds are saved.

Description

technical field [0001] The invention relates to a method and a device for repairing a guide sleeve of a cold rolling uncoiler, belonging to the metallurgical industry. Background technique [0002] All cold-rolled strip mills have uncoilers for opening steel coils. This equipment is arranged at the head of the pickling line, cold rolling mill pre-coiler, temper mill uncoiler, and recoiler uncoiler. The coil produced in this process is put on the fan-shaped plate of the uncoiler, and the mandrel inside the coiler is pulled by the hydraulic cylinder, and the mandrel pulls the outer diamond-shaped guide sleeve, and the guide sleeve has five inclined wedges with a slope. The oblique wedge on the fan-shaped plate slides relative to each other, so as to realize the diameter expansion of the fan-shaped plate, tighten the inner ring of the steel coil, and realize the fixing of the coiled sheet on the fan-shaped plate of the uncoiler. Roll feeding, five-roll straightening, etc. will...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B23P6/00B21C47/30
CPCB23P6/00B21C47/30
Inventor 赵占伟王华勇瞿光清阮加才
Owner 浙江龙盛薄板有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap