KR101816618B1 - Flexible padder for Hydraulic Roller Crown - Google Patents

Flexible padder for Hydraulic Roller Crown Download PDF

Info

Publication number
KR101816618B1
KR101816618B1 KR1020170101271A KR20170101271A KR101816618B1 KR 101816618 B1 KR101816618 B1 KR 101816618B1 KR 1020170101271 A KR1020170101271 A KR 1020170101271A KR 20170101271 A KR20170101271 A KR 20170101271A KR 101816618 B1 KR101816618 B1 KR 101816618B1
Authority
KR
South Korea
Prior art keywords
hydraulic
sealing
packing
elastic
groove
Prior art date
Application number
KR1020170101271A
Other languages
Korean (ko)
Inventor
장익순
Original Assignee
풍광기계 주식회사
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 풍광기계 주식회사 filed Critical 풍광기계 주식회사
Priority to KR1020170101271A priority Critical patent/KR101816618B1/en
Application granted granted Critical
Publication of KR101816618B1 publication Critical patent/KR101816618B1/en

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/006Guiding rollers, wheels or the like, formed by or on the outer element of a single bearing or bearing unit, e.g. two adjacent bearings, whose ratio of length to diameter is generally less than one

Abstract

The present invention relates to a hydraulic crown roller for a flexible padder and, more specifically, to a hydraulic crown roller for a flexible padder, which enables an operation to be performed while adjusting the pressure of a nip applied to the position of a workpiece in accordance with the type and use of the workpiece. The hydraulic crown roller for a flexible padder comprises: a shaft (110) having a hydraulic passage (111) formed therein; a seal fixing flange (120) mounted to be fixated to a recess groove (112); a sealing member (130) mounted in a sealing insertion groove (113); an elastic member (140); and a padder tube (150).

Description

[0001] The present invention relates to a hydraulic pad roller for a flexible paddle,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydraulic crown roller for a flexible federer, and more particularly, to a hydraulic crown roller for a flexible federer which is capable of performing an operation while adjusting a pressure of a nip applied to a position of a workpiece, Roller.

Generally, a pair of pressure rollers are provided in a pulp and paper machine, a dyeing machine, a metal rolling machine, a calander, etc. in parallel so as to rotate at regular intervals, and workpieces are processed while passing the workpieces between the pressure rollers.

However, in the conventional pressure roller, since the length of the roller is long to press the wide workpiece and the rotation axis of both ends of the roller is supported and pressed, the thickness of the central portion in the width direction of the workpiece Thick.

That is, as the roller is warped by the pressing force, there arises a problem that the widthwise central portion of the press-molded workpiece is formed thick.

In order to solve such a problem, a roller is manufactured and used so that the diameter of the central portion of the roller is made larger than that of both sides of the roller so as to form a gently convex curve in the longitudinal direction of the roller.

This is called a crown, and a roller is called a crown.

On the other hand, in order to form a crown on the roller as described above, the surface of the roller must be cut by a curved line, which makes it difficult to manufacture the roller.

Also, even if a crown is formed on the roller, the pressing force varies depending on the thickness, the width, and the material of the workpiece to be manufactured by pressurization, and thus the degree of bending of the roller varies. Therefore, the nip pressure nip pressure can not be uniformly formed.

On the other hand, although the surface of the roller can be curved to form a crown, there is a problem that the degree of the crown can not be controlled.

A prior art related to this is disclosed in Korean Patent Laid-Open Publication No. 10-2007-0022389 and a method for producing uniform pressure in the nip.

Korean Patent Laid-Open No. 10-2007-0022389 (Published date: February 26, 2007)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a crown effect without reducing the surface of a roller, uniformly forming a nip pressure, The present invention provides a hydraulic crown roller for a flexible paddle.

In order to achieve the above object, the hydraulic crown roller for a flexible paddle according to the present invention has a hydraulic oil passage 111 formed therein and has a first hydraulic oil inlet hole 112a communicating with the hydraulic oil passage 111 And a sealing insertion groove 113 is formed in the outer side in a track shape so as to communicate with the cylindrical recessed groove 112. The sealing insertion groove 113 is formed in the outer middle portion, A plurality of elastic member mounting grooves 113a are formed in the grooves 113 at regular intervals and the sealing grooves 113 are formed between the sealing grooves 113 except for the cylindrical grooves 112 in which the elastic member mounting grooves 113a are formed. A shaft 110 having a hydraulic action portion 114 formed therein; The first hydraulic oil passage 121 and the second hydraulic oil passage 122 that are opened and closed by the oil pressure flowing through the first hydraulic oil inlet hole 112a formed in the outer side of the shaft 110 are communicated with each other, A seal fixing flange 120 fixedly mounted on the flange 112; A sealing member 130 movably mounted in a circumferential direction of the shaft 100 in a sealing insertion groove 113 formed to communicate with a cylindrical concave groove 112 in which the seal fixing flange 120 is mounted; A cylindrical faded tube 150 which surrounds the outer side of the shaft 110 mounted on the outer side of the sealing member 130 and the seal fixing flange 120; And an elastic member 140 installed in the elastic member mounting groove 113a to provide an elastic force so that the upper surface of the sealing member 130 is kept in contact with the inner surface of the fader tube 150; The sealing member 130 includes a first packing 131 having a curved first hydraulic operating surface 131a formed on the bottom thereof and a second packing 131 disposed on the first packing 131 in a state of being closely contacted with a lower surface thereof, And a second hydraulic action piece 132 for keeping the airtightness of the beaded tube 150 by the hydraulic pressure applied to the hydraulic action surface 131a.

delete

delete

delete

delete

delete

The hydraulic operating portion 114 formed between the sealing insertion grooves 113 is formed to have a curvature smaller than the outer diameter of the shaft 110 so that the first hydraulic oil inlet 112a and the first hydraulic pressure passage 121, So that the hydraulic pressure supplied through the hydraulic passage 122 is sequentially applied

The sealing member 130 has a first packing 131 formed with a curved first hydraulic operating surface 131a at its bottom and is made of a soft material and is pressurized by the hydraulic pressure applied to the first hydraulic operating surface 131a The second hydraulic action piece 132, which is kept airtight while the upper end is in contact with the inner surface of the beaded tube 150, is divided into a material having hardness stronger than that of the first packing 131, The lower part of the second hydraulic action piece 132 formed by dividing the seating piece 131b into an upper part of the first packing 131 and having a hardness stronger than that of the first packing 131, The receiving groove 132a having the same center and inner diameters as the groove 131b is formed and the upper and lower portions of the positioning plate 133 made of steel are respectively inserted into the receiving groove 132a and the receiving groove 131b The second hydraulic action piece 132 is located at the correct position on the upper part of the first packing 131, The.

It is to be noted that the elastic member 140 provided in the elastic member mounting groove 113a and providing an elastic force is a coil spring having a tensile strength of 3 kg / cm 2 or less.

The diameter of the coil spring as the elastic member 140 is the same as the diameter of the sealing ring 113 formed on both sides of the shaft 110, It is noted that the diameter of the coil spring provided in the elastic member mounting groove 113a of the insertion groove 113 is narrow.

The hydraulic crown roller for a flexible paddle according to the present invention adjusts the pressure of the nip applied to the position of the workpiece while the federative tube is deformed by inputting the hydraulic pressure supplied by the operator to the hydraulic action portion through the pressure regulator , It is an extremely useful invention having an effect that when the workpiece is processed using the hydraulic crown roller, the work can be performed while adjusting the pressure of the nip applied to the position of the workpiece depending on the type and use of the workpiece.

On the other hand, according to the present invention, the nip pressure can be uniformly formed, and the degree of crown effect can be controlled.

1 is a plan view of a hydraulic crown roller according to the present invention;
FIG. 2 is an exploded perspective view showing a state in which a sealing member, a seal fixing flange, and an elastic member are mounted on a shaft of a hydraulic crown roller of the present invention
3 is a side sectional view showing the structure of the hydraulic crown roller of the present invention
4 is a partially enlarged view showing a shaft for a hydraulic crown roller according to the present invention
Fig. 5 is an enlarged view showing a state in which a seal fixing flange is installed on a shaft of a hydraulic crown roller of the present invention
6 is a partially enlarged cross-sectional view showing a state in which a seal fixing flange is installed on a shaft of a hydraulic crown roller of the present invention
7 is an operating state diagram showing a state in which the sealing member is operated so as to open the first hydraulic passage and the second hydraulic passage of the seal fixing flange provided on the shaft of the hydraulic crown roller of the present invention
8 is an exploded view showing the engagement state of a sealing member for a hydraulic crown roller according to the present invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 2 is an exploded perspective view showing a state in which a sealing member, a seal fixing flange, and an elastic member are mounted on a shaft of a hydraulic crown roller of the present invention. FIG. 3 is an exploded perspective view of a hydraulic crown FIG. 4 is a partially enlarged view showing a shaft for a hydraulic crown roller according to the present invention, FIG. 5 is an enlarged view of a main portion showing a state in which a seal fixing flange is installed on a shaft of a hydraulic crown roller according to the present invention, FIG. 6 is a partially enlarged cross-sectional view showing a state in which a seal fixing flange is installed on a shaft of a hydraulic crown roller according to the present invention, and FIG. 7 is a cross-sectional view showing a state where a first hydraulic passage and a second hydraulic passage Fig. 8 is an explanatory view showing the state of engagement of the sealing member for the hydraulic crown roller of the present invention It is even.

As shown in Figs. 1 to 8, the hydraulic crown roller for a flexible paddle according to the present invention includes a hydraulic oil passage 111 formed inside and having a first hydraulic oil inlet hole 112a And a sealing insertion groove 113 is formed in the outer side in a track shape so as to communicate with the cylindrical recessed groove 112, A plurality of elastic member mounting grooves 113a are formed in the sealing insertion grooves 113 at regular intervals and the sealing grooves 113a are formed in the sealing insertion grooves 113 except for the cylindrical grooved grooves 112 formed with the elastic member mounting grooves 113a. A shaft 110 having a hydraulic action portion 114 formed therebetween; The first hydraulic oil passage 121 and the second hydraulic oil passage 122 that are opened and closed by the oil pressure flowing through the first hydraulic oil inlet hole 112a formed in the outer side of the shaft 110 are communicated with each other, A seal fixing flange 120 fixedly mounted on the flange 112; A sealing member 130 movably mounted in a circumferential direction of the shaft 100 in a sealing insertion groove 113 formed to communicate with a cylindrical concave groove 112 in which the seal fixing flange 120 is mounted; A cylindrical faded tube 150 which surrounds the outer side of the shaft 110 mounted on the outer side of the sealing member 130 and the seal fixing flange 120; And an elastic member 140 installed in the elastic member mounting groove 113a to provide an elastic force so that the upper surface of the sealing member 130 is kept in contact with the inner surface of the fader tube 150. [

delete

delete

delete

delete

The sealing member 130 includes a first packing 131 formed with a first hydraulic operating surface 131a curved at a bottom thereof and a second packing 131 coupled to the upper portion of the first packing 131 in tight contact with a lower surface thereof. And a second hydraulic action piece 132 for keeping the airtightness of the beaded tube 150 by the hydraulic pressure applied to the first hydraulic action surface 131a.

In addition, the hydraulic action portion 114 formed between the sealing insertion grooves 113 is formed with a curvature smaller than the outer diameter of the shaft 110.

The sealing member 130 has a first packing 131 formed with a curved first hydraulic operating surface 131a at its bottom and is made of a soft material. The first packing 131 is made of a soft material and the hydraulic pressure applied to the first hydraulic operating surface 131a The second hydraulic action piece 132, which is kept airtight while the upper end is in contact with the inner surface of the beaded tube 150, is divided into a material having hardness stronger than that of the first packing 131, The lower part of the second hydraulic action piece 132 formed by dividing the seating piece 131b into an upper part of the first packing 131 and having a hardness stronger than that of the first packing 131, The receiving groove 132a having the same center and inner diameters as the groove 131b is formed and the upper and lower portions of the positioning plate 133 made of steel are respectively inserted into the receiving groove 132a and the receiving groove 131b The second hydraulic action piece 132 is located at the correct position on the upper part of the first packing 131, The.

The elastic member 140 provided in the elastic member mounting groove 113a and providing an elastic force is a coil spring having a tensile strength of 3 kg / cm 2 or less.

The diameter of the coil spring as the elastic member 140 is the same as the diameter of the sealing ring 113 formed on the left and right sides of the shaft 110, The diameter of the coil spring installed in the elastic member mounting groove 113a of the insertion groove 113 is narrow.

In the present invention, when the work such as pulp and paper, dyeing, metal rolling, calander and the like is performed, the operator visually confirms the hydraulic pressure supplied to the hydraulic operating portion 114, And the hydraulic pressure is supplied to and discharged from the hydraulic pressure acting portion 114 by operating.

1 and 7, the hydraulic pressure supplied to the hydraulic operating portion 114 is transmitted through the first hydraulic oil inlet 112a through the hydraulic passage 111 formed in the shaft 110, And a shaft 110 having a sealing insertion groove 113 formed by the hydraulic pressure transmitted to the first hydraulic operating surface 131a is transmitted to the first hydraulic operating surface 131a formed at the lower portion of the first packing 131 of the first hydraulic operating surface 131, The sealing member 130 is moved to the outer side of the shaft 110 to open the first hydraulic passage 121 formed in the seal fixing flange 120 provided in the concave groove 112, When the first hydraulic pressure passage 121 is opened and the second hydraulic pressure passage 122 communicated with the first hydraulic pressure passage 121 is inserted into the sealing insertion groove 113 with a curvature smaller than the outer diameter of the shaft 110, The hydraulic pressure is supplied to the hydraulic pressure acting portion 114 formed between the shaft 110 and the hydraulic pressure applying portion 114, And is bent and deformed.

The first packing 131 and the second hydraulic action piece 132 of the sealing member 130 are fixed to the positioning plate 131b and the receiving groove 132a, (112a) formed in the shaft insertion hole (113) formed in the shaft (110) in a state where the first hydraulic oil inlet hole (112a) and the second hydraulic oil inlet hole The first packing 131 of the sealing member 130 is made soft so that the lower portion formed with the first hydraulic operating surface 131a is opened to the left and right so that the inner side wall of the sealing insertion groove 113 The first packing 131 is moved in the circumferential direction of the shaft 110 and the upper end of the first packing 131 is moved to the inner side surface of the bead tube 150, The upper end portion of the second hydraulic pressure action piece 132 of the sealing member 130 which is in contact with the oil pressure inlet groove 132b And is kept in a close contact state by the inflow hydraulic pressure.

When the hydraulic pressure is discharged from the hydraulic operating portion 114, the sealing member 130 is returned to its original position to return to the original position. Thus, the faded tube 150, which has been expanded so as to protrude in the circumferential direction of the shaft 110, At the same time, is contracted and returned to its original shape.

On the other hand, the elastic member 140, which provides an elastic force like the coil spring, is installed in the elastic member mounting groove 113a such that the tensile strength is 3 kg / cm 2 or less, The upper end portion of the second hydraulic action piece 132 of the sealing member 130 located at the intermediate portion and the other portion of the sealing insertion groove 110 to which the oil pressure is supplied later than the one- It is possible to prevent the oil pressure from leaking while maintaining the state of being kept in close contact with the inner surface of the hollow tube 150.

The diameter of the coil spring as the elastic member 140 is the same as the diameter of the sealing ring 113 formed on both sides of the shaft 110, The diameter of the coil spring installed in the elastic member mounting groove 113a of the insertion groove 113 is narrow and the central portion of the inner space is most deformed when a certain pressure is supplied to the bead tube 150 and the bending is generated Even if the deformation becomes smaller as it goes to the side, airtightness is maintained while maintaining a constant pressure.

The coated portion 160 is formed on the outer surface of the cylindrical tube 150 to have a smooth surface so that the hydraulic crown roller 100 and the hydraulic crown roller 100 So that the surface of the workpiece passing between the workpiece and the workpiece is smoothed and passed.

100: Hydraulic crown roller 110: Shaft
111: Hydraulic passage 112: Cylindrical groove
112a: First hydraulic oil inlet 113: Sealing insertion groove
113a: elastic member mounting groove 114: hydraulic operating portion
120: seal fixing flange 121: first hydraulic passage
122: second hydraulic passage 130: sealing member
131: first packing 131a: first hydraulic operating surface
131b: seat groove 132: second hydraulic action piece
132a: receiving groove 133: positioning plate
140: elastic member 150: flanged tube
160: Coating portion

Claims (5)

  1. A hydraulic oil passage 111 is formed inside and a first hydraulic oil inlet hole 112a communicating with the hydraulic oil passage 111 is formed and a cylindrical recessed groove 112 is formed in both the left and right sides of the outer middle portion, A sealing insertion groove 113 is formed in the outer side in a track shape so as to communicate with the cylindrical recessed groove 112. A plurality of elastic member mounting recesses 113a are formed in the sealing insertion recess 113 at regular intervals A shaft 110 having a hydraulic operation part 114 formed between the sealing insertion grooves 113 except for the cylindrical recess 112 formed with the elastic member mounting recess 113a;
    The first hydraulic oil passage 121 and the second hydraulic oil passage 122 that are opened and closed by the oil pressure flowing through the first hydraulic oil inlet hole 112a formed in the outer side of the shaft 110 are communicated with each other, A seal fixing flange 120 fixedly mounted on the flange 112;
    A sealing member 130 movably mounted in a circumferential direction of the shaft 100 in a sealing insertion groove 113 formed to communicate with a cylindrical concave groove 112 in which the seal fixing flange 120 is mounted;
    A cylindrical faded tube 150 which surrounds the outer side of the shaft 110 mounted on the outer side of the sealing member 130 and the seal fixing flange 120;
    And an elastic member 140 installed in the elastic member mounting groove 113a to provide an elastic force so that the upper surface of the sealing member 130 is kept in contact with the inner surface of the fader tube 150;
    The sealing member 130 includes a first packing 131 having a curved first hydraulic operating surface 131a formed on the bottom thereof and a second packing 131 disposed on the first packing 131 in a state of being closely contacted with a lower surface thereof, And a second hydraulic action piece (132) for keeping the airtightness of the beaded tube (150) by the hydraulic pressure applied to the hydraulic action surface (131a).
  2. The hydraulic crown roller for a flexible paddle according to claim 1, wherein the hydraulic action portion (114) formed between the sealing insertion grooves (113) is formed with a curvature smaller than the outer diameter of the shaft (110).
  3. The sealing member 130 according to claim 1, wherein the sealing member 130 is made of a soft material and the first packing 131 having the first hydraulic operating surface 131a curved at the bottom is formed, The second hydraulic action piece 132 that is kept airtight while the upper end is in contact with the inner side surface of the bead tube 150 by the hydraulic pressure is divided and made into a material having hardness stronger than that of the first packing 131, The lower portion of the second hydraulic action piece 132 formed by dividing the seating 131b into an upper portion of the packing 131 and having a hardness higher than that of the first packing 131, The upper and lower portions of the positioning plate 133 made of steel are inserted into the receiving groove 132a and the receiving groove 131b, respectively, And the second hydraulic actuating piece 132 is positioned at the correct position on the upper part of the first packing 131 Flexible fader reolyong hydraulic crown roller of.
  4. The hydraulic crown roller for a flexible paddle according to claim 1, wherein the elastic member (140) provided in the elastic member mounting groove (113a) to provide an elastic force is a coil spring having a tensile strength of 3 kg / cm2 or less.
  5. delete
KR1020170101271A 2017-08-09 2017-08-09 Flexible padder for Hydraulic Roller Crown KR101816618B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020170101271A KR101816618B1 (en) 2017-08-09 2017-08-09 Flexible padder for Hydraulic Roller Crown

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020170101271A KR101816618B1 (en) 2017-08-09 2017-08-09 Flexible padder for Hydraulic Roller Crown

Publications (1)

Publication Number Publication Date
KR101816618B1 true KR101816618B1 (en) 2018-01-09

Family

ID=61000590

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020170101271A KR101816618B1 (en) 2017-08-09 2017-08-09 Flexible padder for Hydraulic Roller Crown

Country Status (1)

Country Link
KR (1) KR101816618B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101147017B1 (en) 2004-03-05 2012-05-17 롬 앤드 하스 덴마크 파이낸스 에이에스 Compliant pressure roller with uniform nip pressure
US20150234940A1 (en) 2012-09-20 2015-08-20 Boegli-Gravures Sa Method for producing a set of cooperating embossing rollers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101147017B1 (en) 2004-03-05 2012-05-17 롬 앤드 하스 덴마크 파이낸스 에이에스 Compliant pressure roller with uniform nip pressure
US20150234940A1 (en) 2012-09-20 2015-08-20 Boegli-Gravures Sa Method for producing a set of cooperating embossing rollers

Similar Documents

Publication Publication Date Title
US10286436B2 (en) Method of press forming and press forming apparatus
EP0294034B1 (en) Method of forming box-like frame members
RU2320444C2 (en) Machine provided with linear drive for plastic working of metals
US4289014A (en) Double action domer assembly
TWI510303B (en) Spin forming method
US3765647A (en) Valve construction and method
JP4567336B2 (en) Apparatus and method for expanding and forming can body
US5735156A (en) Method and apparatus for forming a non-circular pipe
EP0913605B1 (en) Sealing apparatus
Al-Qureshi Elastic-plastic analysis of tube bending
US6758077B2 (en) Manufacturing method of cylinder
JP2005324255A (en) Method for manufacturing round steel tube
DE3713083C3 (en) Tool for joining sheet metal
US4148426A (en) Method and apparatus for manufacturing metal pipe
US6026666A (en) Method for manufacturing internally geared parts
EP1904243B1 (en) Press brake tool holder incorporating tool-seating mechanism
CA2693332A1 (en) Method for hydroforming and a hydroformed product
JP4687890B2 (en) Straightening method of metal bending pipe and straightening press mold
CA2539342C (en) Support body, holding device therefor, apparatus with such a body for treatment of a web, methods of forming an extended nip in the apparatus and controlling load in the nip
WO2006098183A1 (en) Cylindrical shaft and method of manufacturing the same
US7343767B2 (en) Roller tool for the linear deformation of sheet metal and sheet deformation facility having such a roller tool
US7237423B1 (en) Apparatus for stretch forming blanks
EP1389149B1 (en) Tool for a bending machine
US6151938A (en) Dieless forming apparatus
Khandeparkar et al. Hydromechanical deep drawing of cups with stepped geometries

Legal Events

Date Code Title Description
E701 Decision to grant or registration of patent right
GRNT Written decision to grant