KR101793444B1 - Ring Knife for Slitting of Double-Sided Tape - Google Patents

Ring Knife for Slitting of Double-Sided Tape Download PDF

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Publication number
KR101793444B1
KR101793444B1 KR1020160031535A KR20160031535A KR101793444B1 KR 101793444 B1 KR101793444 B1 KR 101793444B1 KR 1020160031535 A KR1020160031535 A KR 1020160031535A KR 20160031535 A KR20160031535 A KR 20160031535A KR 101793444 B1 KR101793444 B1 KR 101793444B1
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KR
South Korea
Prior art keywords
double
cutting
sided tape
slotting
knife
Prior art date
Application number
KR1020160031535A
Other languages
Korean (ko)
Other versions
KR20170107784A (en
Inventor
박건우
Original Assignee
박건우
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Filing date
Publication date
Application filed by 박건우 filed Critical 박건우
Priority to KR1020160031535A priority Critical patent/KR101793444B1/en
Publication of KR20170107784A publication Critical patent/KR20170107784A/en
Application granted granted Critical
Publication of KR101793444B1 publication Critical patent/KR101793444B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/36—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and rotating continuously in one direction during cutting, e.g. mounted on a rotary cylinder
    • B26D1/365—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and rotating continuously in one direction during cutting, e.g. mounted on a rotary cylinder for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/20—Cutting beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0053—Cutting members therefor having a special cutting edge section or blade section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/006—Cutting members therefor the cutting blade having a special shape, e.g. a special outline, serrations

Abstract

The present invention provides a ring knife for double-sided tape slotting that can further reduce errors in width dimensions of a double-sided tape during a double-sided tape slotting process.
A ring knife for double-sided tape slotting according to the present invention comprises a cylindrical knife body rotatably mounted on a double-sided tape feeding line, and a ring-shaped cutting blade arranged on the outer circumferential surface of the knife body in a longitudinal direction, The cutting portion of the blade is composed of a cutting edge inclined only on one side of the vertical line of the blade edge, and a plurality of cutting blades are arranged so that the cutting faces are mutually opposite. The plurality of cutting blades are arranged such that a first slotting interval in which the cutting surfaces are mutually aligned and a second slotting interval in which the cutting surfaces face each other are alternately formed, Is set to the width dimension of the double-sided tape to be produced.

Description

[0001] The present invention relates to a ring knife for a double-sided tape,

The present invention relates to a ring knife for double-sided tape slitting, and more particularly, to a method for slitting a wide-width double-sided tape at a desired width during a double-sided tape manufacturing process by reducing the tolerance of the width dimension, To a double-sided tape slitting ring knife capable of producing a double-sided tape having a double-sided tape.

Generally, the manufacturing process of a roll type double-sided tape is a process of forming a wide double-sided tape by sequentially laminating a release paper, a pressure-sensitive adhesive layer, a PU foam layer, an adhesive layer and release paper on a base paper, And a winding step of winding the slitted double-sided tape in a roll form.

At this time, in the slitting process for cutting a wide double-sided tape to a predetermined width of a desired dimension, a plurality of fixed knives are arranged on a conveying line of the double-sided tape at regular intervals to cut the wide double- In recent years, the slitting process has been carried out using a ring knife because of problems of workability such as occurrence of speed and defects.

1 and 2 show a conventional slitting process using a ring knife. The ring knife 1 includes a cylindrical knife body 2 rotatably mounted on a transfer line of a double-sided tape T, And a plurality of ring-shaped cutting blades 3 arranged on the outer circumferential surface of the knife body 2 at regular intervals in the longitudinal direction.

As shown in Fig. 3, the cutting portion of the cutting blade 3 is composed of a cutting edge 3a and a cutting surface 3b which is inclined at both sides with respect to a vertical line YY of the blade edge 3a, A pressing force acts in a direction perpendicular to the cutting face 3b by the inclined cutting face 3b at both cut portions of the double-faced tape T in the process of cutting the double-faced tape T by the cutting face 3a.

Therefore, when the pressing force acting on the cut surface of the double-sided tape T is biased to one side, the double-sided tape T is pushed to the side where the pressing force largely acts, Is not correctly cut in the vertical direction, thereby causing an error in the width dimension L. As a result,

The slit error of the double-faced tape T by the cutting blade 3 having the both cutting faces 3b is ± 0.1 mm and the double-faced tape T having the width dimension L of 3.2 mm, for example, In case of manufacturing, products with a width of 3.1 mm and a width of 3.3 mm are produced in a small size, and this error is used in a place where the width dimension (L) of the double-sided tape (T) There is no problem.

However, in recent years, as the use area of the double-sided tape has expanded to the use of small precision parts, the user is required to reduce the error with respect to the width dimension L of the double-sided tape T to within ± 0.05 mm There is an urgent need for a solution.

It is an object of the present invention to provide a double-sided tape slotting ring knife for double-sided tape slotting, which can improve the precision of a used place by further reducing the error with respect to the width dimension of the double- .

In order to achieve the above object, the present invention provides a double-sided tape feeder comprising: a cylindrical knife body rotatably mounted on a double-sided tape feeding line; and a double-sided tape comprising a ring-shaped cutting blade arranged on the outer circumferential surface of the knife body, A cutting knife for a slitting ring, wherein the cutting portion of the cutting blade is composed of a cutting edge and a cutting surface that is only inclined with respect to a vertical line of the cutting edge, wherein the plurality of cutting blades are arranged such that the cutting surfaces are mutually offset, It is characterized by a ring knife for double-sided tape slitting, which is set to the width dimension of the double-sided tape to be produced between the edges of the blade.

The present invention also provides a ring knife for double-sided tape slitting comprising a cylindrical knife body rotatably mounted on a double-sided tape feeding line, and a ring-shaped cutting blade arranged on the outer circumferential surface of the knife body in a longitudinal direction, Wherein the cutting portion of the cutting blade comprises a cutting edge that is inclined only to one side with respect to a vertical line of a blade tip and a cutting edge of the cutting edge, And a second slotting section arranged so as to face each other are alternately formed.

Further, the present invention is characterized in that the second slotting interval is set to be shorter than the first slotting interval with respect to the blade edge of the cutting blade, and the first slotting interval is set to be between the edges of both cutting blades It is characterized by a ring knife for double-sided tape slitting that is set to the width dimension of double-sided tape.

According to the ring knife for double-sided tape slitting of the present invention having the above-described characteristic feature, since the cutting portion of the cutting blade is constituted by a cutting surface that is inclined only to one side with the cutting edge and the cutting surfaces are arranged to be equal to each other, The width dimension error of the double-sided tape can be further reduced compared with the conventional one by minimizing the swelling of the cut surface caused by the slotting process of the double-sided tape due to the cutting blade, thereby realizing a precision double-sided tape satisfying the width error range desired by the user Can be produced.

According to the present invention, a first slotting interval in which the cutting surfaces of the cutting blades are opposite to each other and a second slotting interval in which the cutting surfaces face each other are alternately formed, and a first slotting interval in which errors are small is formed A width dimension for producing a double-sided tape is set, and a second slotting interval with a large error is set to be as short as possible than the first slotting interval, thereby minimizing the loss of the double-sided tape occurring in the second slotting interval .

1 is a side view showing a conventional slotting process by a ring knife having both cutting surfaces;
2 is a front view showing a conventional slotting process by a ring knife having both cutting surfaces.
3 is an enlarged view of a main part of Fig.
4 is a front view showing a slotting process by the ring knife of the present invention.
5 is an enlarged view of a main part of Fig.

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

4 and 5 show a process of slitting a double-sided tape with a ring knife according to the present invention. The ring knife 10 of the present invention is a cylindrical knife 10 which is rotatably installed on a transfer line of a double- A knife body 11 and a ring-shaped cutting blade 12 arranged on the outer peripheral surface of the knife body 11 in the longitudinal direction.

The cutting portion of the cutting blade 12 is composed of a cutting edge 12a and a cutting surface 12b that is only tilted with respect to a vertical line Y-Y of the cutting edge 12a.

The plurality of cutting blades 12 are arranged in the longitudinal direction of the knife body 11 so that the cutting faces 12b are arranged on the same side of the knife body 11 and the cutting faces 12b are disposed on both sides of the cutting blades 12, Sided tape 12a to be produced is set to the width dimension of the double-sided tape to be produced.

According to this configuration, the double-sided tape having a precise width dimension can be produced by significantly reducing the width dimensional error of the double-sided tape as compared with the conventional ring knife having the inclined cutting face formed on both sides of the blade edge.

5, the cutting portion of the cutting blade 12 is formed with the cutting surface 12b inclined only on one side with respect to the vertical line YY of the blade tip 12a, so that the double-sided tape T The cutting surface on the side of the cutting surface 12b is subjected to a pressing force in a direction perpendicular to the cutting surface 12b to cause a tilting phenomenon, So that it can be cut so as to be near the vertical line YY of the blade 12a.

Therefore, when the cutting face 12b is arranged evenly when the cutting edge 12 is arranged and the distance between the edges 12a of the cutting edge 12 is set to the width dimension of the product to be produced, It is possible to produce a precision double-sided tape in which a width dimension error is significantly reduced as compared with a conventional ring knife having a sloped cutting surface.

The width dimension error of the double-sided tape produced by slotting wide-width double-faced tape using the ring knife 10 of the present invention is within the range of +/- 0.05, and the width dimension error by the ring knife having the conventional double- mm by about 50%.

For example, if the user requests a double-sided tape having a width of 3.2 mm or less, the first slotting interval L1 in which the cutting surface 12b is equally spaced is set to 3.15 mm, It is possible to manage the dimension of up to 3.20mm and the minimum of 31.0mm to meet the desire of the user who desires to control the width dimension of the precision double-sided tape.

4, when a plurality of cutting blades 12 are provided along the longitudinal direction of the knife body 11, a first slotting section L1 in which the cutting faces 12b are disposed so as to face each other, And a second slotting interval L2 in which the cutting faces 12b are disposed to face each other can be alternately formed.

In this case, the first slotting interval L1 is set to the width dimension of the double-sided tape to be produced, and the second slotting interval L2 is set to the width of the cutting edges 12a of both the cutting blades 12, If the distance between the blade tips 12a of the blade 12 is shorter than the first slotting interval L1 and is set to be as short as possible, the width dimension within a desired error range can be reduced by the first slotting interval L1, The double-sided tape can be produced precisely and the loss of the double-sided tape lost by the second slotting section L2 having a large error can be minimized.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to be illustrative of the present invention and not to be construed as limiting the scope of the present invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

10: ring knife 11: knife body
12: Cutting blade 12a:
12b: cutting plane L1, L2: first and second slotting sections

Claims (3)

delete A ring knife for double-sided tape slitting comprising a cylindrical knife body rotatably mounted on a double-sided tape transfer line, and a ring-shaped cutting blade arranged on the outer circumferential surface of the knife body in a longitudinal direction,
Wherein the cutting portion of the cutting blade comprises a cutting edge that is inclined only to one side with respect to a vertical line of a blade tip and a cutting edge of the cutting edge, The second slotting sections facing each other are arranged alternately,
Wherein the second slotting interval is set to be shorter than the first slotting interval with reference to a blade edge of the cutting blade, and the first slotting interval is set to a width dimension of the double-sided tape to be produced between the blade edges of both cutting blades Wherein the ring-shaped knife is a ring knife for slitting a double-sided tape. delete
KR1020160031535A 2016-03-16 2016-03-16 Ring Knife for Slitting of Double-Sided Tape KR101793444B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160031535A KR101793444B1 (en) 2016-03-16 2016-03-16 Ring Knife for Slitting of Double-Sided Tape

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160031535A KR101793444B1 (en) 2016-03-16 2016-03-16 Ring Knife for Slitting of Double-Sided Tape

Publications (2)

Publication Number Publication Date
KR20170107784A KR20170107784A (en) 2017-09-26
KR101793444B1 true KR101793444B1 (en) 2017-11-02

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KR1020160031535A KR101793444B1 (en) 2016-03-16 2016-03-16 Ring Knife for Slitting of Double-Sided Tape

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008279537A (en) * 2007-05-10 2008-11-20 Lintec Corp Slitter device and slitting method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008279537A (en) * 2007-05-10 2008-11-20 Lintec Corp Slitter device and slitting method

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