TW202220510A - Variable type roller structure - Google Patents

Abstract

Disclosed is a variable roller structure. A variable roller structure according to an exemplary embodiment of the present invention comprises: a first body and a second body which have a cylindrical shape; a first stepped part installed between the first body and the second body; and a first movable member installed in contact with the first stepped part, wherein the diameter of the first stepped part can be varied by the rotation of the first movable member.

Description

Variable type roll structure

The present invention relates to a variable-type roll structure, and more specifically, to a variable-type roll structure capable of further changing the structure of a level difference portion supporting a part of a film base material.

The flexible circuit board is mainly woven by a roll-to-roll process in which a film-type substrate is transferred by the rotation of a roll. In order to prevent such a film-type base material from contacting the roll and causing damage to the circuit wiring or the surface, the film-type base material is The material is conveyed in a state spaced from the surface of the roll by a predetermined height. Also, as shown in FIG. 1 , the film-type base material may include a plurality of flexible circuit boards along the width direction, wherein regions between the plurality of flexible circuit boards are supported by separate height difference portions, thereby preventing the film-type base material from being Bend towards gravity.

However, according to the prior art, when transferring different numbers of film-type substrates in the width direction, as an example, in the case of forming two flexible circuit boards from a film-type substrate as shown in FIG. 1 (the following , referred to as "two sets") is changed to a film-type base material (hereinafter referred to as "three sets") that forms three flexible circuit boards as shown in Figure 2 and transferred, as the area between the flexible circuit boards. The positions supported by the individual level difference portions are also different from each other, and therefore, the rollers provided with the corresponding level difference portions need to be replaced every time. This has the problem of lowering productivity due to roll replacement time, center alignment work, and the like.

Therefore, there is a need to develop a roll structure that can transfer a film-type material having a different number of flexible circuit boards in the width direction without replacing the rolls.

prior art literature

Patent Literature

Patent Document 0001: Korean Patent Publication No. 10-2010-0103142

The problem that the invention seeks to solve

An embodiment of the present invention provides a variable-type roll structure capable of changing the outer diameter of a level difference portion supporting a film base material as required.

An embodiment of the present invention provides a variable-type roll structure capable of transferring a film substrate transferred by a plurality of sets without replacing the rolls.

technical means to solve problems

According to an embodiment of the present invention, a variable-type roller structure is provided, which includes: a first body 10 and a second body 30 that are circular; a first height difference part 50 is provided on the first body 10 and the second body Between the main bodies 30 ; and the first movable member 85 are provided in contact with the first height difference portion 50 , and the diameter of the first height difference portion 50 can be changed by the rotational movement of the first movable member 85 .

In this case, the first body and the second body respectively include: a cylindrical portion; and first side portions 15 and 35 formed on one side surface of the cylindrical portion with a predetermined width along the end portion direction of the cylindrical portion The first side portion protrudes from the outer peripheral surface of the cylindrical portion to form a height difference, and the first body and the second body can be provided in an opposite shape.

At this time, the first body and the second body further include second side portions 16 and 36 along the first side portion direction, respectively, and the outer peripheral surface of the second side portion has the same diameter as the outer peripheral surface of the first side portion. Formed or formed by a diameter that expands relative to the outer peripheral surface of the first side portion.

At this time, the first height difference portion 50 includes one or more first moving members 52 . When the side surface is in contact with the first protruding portion 84a protruding from the outer peripheral surface of the first movable member 85, the first moving member 52 is driven from the rotation center of the first movable member 85 toward the outer direction to expand the first height The diameter of the difference portion 50 .

At this time, the first moving member 52 and the first protruding portions 84a of the first movable member 85 are formed in one-to-one correspondence or in many-to-one correspondence, and in the case where the first moving member 52 or the first protruding portions 84a are formed by a plurality of them In this case, the adjacent first moving members 52 or the first protrusions 84a may be formed with a predetermined interval therebetween.

In this case, two or more n-th height difference parts are included between the first body 10 and the second body 30; More than one spacer 40 may be formed between the parts.

At this time, n nth movable members may be formed to correspond to the nth nth height difference portions described above.

At this time, the first moving member 52 further includes one or more supporting members 59, and the supporting member 59 can connect one or more of the first body, the second body, the n-th height difference portion or the space maintaining portion 40 with the first body. The moving parts 52 are combined.

In this case, the n-th movable member can be formed such that the adjacent n+1-th movable members or n-1-th movable members and the n-th protrusions intersect with each other.

At this time, the present invention also includes a hub body 80 combined with the second side parts 16 and 36, and the outer peripheral surface of the hub body 80 can be in contact with the inner peripheral surface of the first body, the second body or the movable part. way of forming.

At this time, the present invention further includes a rotating shaft 90 combined with the first body 10 and the second body 30 , and the first movable member 85 can be disposed between the rotating shaft 90 and the first height difference portion 50 .

At this time, the first body 10 and the second body 30 may include rotating shaft coupling portions 14 and 34 formed on one surface of the second side portion toward the cylindrical portion.

At this time, the present invention further includes a height difference adjusting member provided on the outer side of at least one of the second side portions of the first body and the second body, and rotatable around the rotation shaft to rotate the movable member.

At this time, the present invention also includes a height difference adjusting member 20 for controlling the rotational movement of the first movable member 85, and more than one height difference adjusting member 20 is provided to correspond to the first movable member to the nth movable member one-to-one or Many-to-one correspondence.

Efficacy compared to prior art

The variable-type roller structure according to the embodiment of the present invention has an effect of moving the corresponding first height difference portion toward the outer side in the radial direction of the rotating shaft as the movable member having the first protruding portion formed on the outer peripheral surface is rotated. Alternatively, by moving inward in the radial direction, a level difference portion in contact with the film substrate can be selectively formed.

The variable-type roller structure of the embodiment of the present invention has the effect of providing a plurality of height difference parts corresponding to the plurality of protrusion parts in addition to the first protrusion part and the first height difference part, and by making them coordinate with each other Drive to efficiently transfer film substrates transferred by multiple sets without changing the rollers.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art to which the present invention pertains can easily implement the present invention. The present invention can be embodied in various embodiments, and is not limited to the examples described herein. In the drawings, in order to clearly describe the present invention, parts irrelevant to the description are omitted, and the same reference numerals are assigned to the same or similar structural elements throughout the specification.

In this specification, it should be understood that terms such as "comprising" or "having" are used to designate the presence of features, numbers, steps, actions, structural elements, or combinations thereof described in the specification, rather than excluding in advance The presence or additional possibility of one or more other features or numbers, steps, acts, structural elements, components or combinations thereof.

In this specification, "diameter" refers to a straight line crossing the center of the circular cross section in an arbitrary circular cross section perpendicular to the longitudinal direction of the variable roll structure, and may mean connecting two parts on the outer peripheral surface of the circular cross section. The length of the line segment in points. In addition, the "radius" refers to the length of a line segment connecting the center of the circular cross section and any point on the outer peripheral surface of the circular cross section.

FIGS. 1 and 2 are perspective views showing that the variable-type roller structure according to an embodiment of the present invention transfers a film substrate having two sets of flexible circuit boards and three sets of flexible circuit boards, respectively. 3 is an exploded perspective view showing a variable-type roller structure according to an embodiment of the present invention. FIGS. 4 and 5 are views of the variable-type roller structure according to the embodiment of the present invention when viewed in a direction perpendicular to the extending direction of the rotating shaft.

The variable-type roll structure 1 according to an embodiment of the present invention is a device that can rotate around a rotating shaft 90, and as shown in FIG. ) is a device that transfers a film substrate in one direction while moving a part of the lower surface of the film. In this case, the film base material has a predetermined width and thickness, is extended in one direction, and is composed of a polymer resin, a metal component, or the like. And the flexible wiring board can be conveyed by the variable-type roll structure 1 of this invention in the state formed on the front and back of the said film base material, or the state before formation.

In more detail, the variable-type roller structure 1 according to an embodiment of the present invention is a cylindrical roller structure. In this case, the first body 10 and the second body 30 which are individually cylindrical are included to form a cylinder as a whole. shape. The variable-type roll structure 1 having the cylindrical shape as described above supports and transfers the film base material while rotating about the rotating shaft 90. At this time, in order to bring the variable-type roll structure body into contact with the film base material In order to minimize the area, it is necessary to provide at least one level difference portion having a predetermined width, such as the first level difference portion 50, on a part of the outer peripheral surface of the main body. In this case, the level difference portion is formed in a region that does not overlap with the circuit region formed on the front and back of the film base material, and the circuit can be prevented from being damaged during transfer.

In addition, the variable-type roller structure 1 according to an embodiment of the present invention is intended to transfer a state of a plurality of flexible circuit boards including two sets of flexible circuit boards or three sets of flexible circuit boards in the width direction or to form a flexible circuit The film substrate in the state before the board. In this case, the flexible circuit boards constituting the respective groups of the plurality of groups may be formed of the same width or different widths from each other.

However, if at least one level difference portion including the first level difference portion 50 is fixed and cannot be changed, every time the transfer object is changed from the film base material including two sets of flexible circuit boards as shown in FIG. In the case of the film base material including three sets of flexible circuit boards shown in FIG. 2 , that is, the area where the circuit of the film base material is formed, the size of the flexible circuit board, etc. are different, so there is a possibility that the roller structure is also replaced with one formed with the film base material. The inconvenience of the roller structure corresponding to the inner level difference portion.

In order to solve the above-mentioned problem, the variable roller structure 1 according to an embodiment of the present invention is proposed to provide a movable member 85 that can be inserted into the first body 10 and the second body 30 at a position adjacent to the rotating shaft 90 , and a movable member 85 that can be driven in coordination therewith. One or more level difference portions are used to expand the level difference portions toward the outer side in the radial direction of the rotating shaft 90 or return to the inner side.

Specifically, referring to FIG. 3 , the variable-type roller structure 1 according to an embodiment of the present invention may include a rotating shaft 90 , a first body 10 , a second body 30 , a first height difference portion 50 and a first movable member 85 .

In an embodiment of the present invention, the rotating shaft 90 is a cylindrical member extending in one direction, and is directly or indirectly combined with the first body 10 and the second body 30 to be described later, thereby supporting the first body 10 and the second body 30 .

In an embodiment of the present invention, at least a part of the rotating shaft 90 may be connected with a driving unit such as a motor. That is, the entire variable-type roller structure 1 according to an embodiment of the present invention can be rotated by rotating the rotating shaft 90 by the motor. The rotational force generated here can be transmitted to the film substrate to move the film substrate in one direction.

In contrast, in an embodiment of the present invention, the rotating shaft 90 can also be formed to be passively rotated according to the movement of the film substrate without being connected to a driving unit such as a motor. That is, the variable-type roller structure 1 according to an embodiment of the present invention supports the lower surface of the film base, and at this time, can be rotated around the rotating shaft 90 by the frictional force formed by the contact with the film base.

The variable-type roller structure 1 according to an embodiment of the present invention includes a first body 10 and a second body 30 . At this time, the first body 10 and the second body 30 may function as volume members constituting a part of the cylindrical variable-type roll structure 1, and may pass through the first side portion 15, 35 or the second sides 16, 36 support the film substrate.

In an embodiment of the present invention, the first body 10 and the second body 30 are cylindrical structures arranged at one end of the variable-type roller structure 1 with the longitudinal direction of the rotating shaft 90 as a reference. At this time, as shown in FIG. As shown in FIG. 5 , the first body 10 and the second body 30 can be arranged to face each other with reference to a first height difference portion 50 to be described later.

In addition, the first body 10 and the second body 30 can be combined with the rotating shaft 90 by forming a space through which the rotating shaft 90 can pass therethrough. That is, the rotating shaft 90 enters one of the first body 10 and the second body 30 and advances to the outside through the other.

However, in an embodiment of the present invention, the difference between the first body 10 and the second body 30 is only in the arrangement position, and the structures and functions are the same or similar. Therefore, in the following, in order to avoid repetition of the description, the first main body 10 will be mainly described, and descriptions related to the second main body 30 will be added only when necessary. Relatedly, when the reference numerals of the first body 10 are described, the reference numerals of the parts of the second body 30 corresponding to the first body 10 are also described.

More specifically, referring to FIGS. 3 to 5 , the first body 10 may include cylindrical portions 11 , 31 , first side portions 15 , 35 , second side portions 16 , 36 , and rotating shaft coupling portions 14 , 34 .

First, the cylindrical portion 11 is a portion that constitutes the outer peripheral surface of the first body 10 formed in a cylindrical shape, and can also constitute a portion of the outer peripheral surface of the variable-type roller structure 1 formed in a cylindrical shape.

Next, referring to FIG. 4 again, the first body 10 may include first side portions 15 and 35 formed on one side surface of the cylindrical portion 11 with a predetermined width along the end portion direction of the rotation shaft 90 .

At this time, the first side portions 15 and 35 may protrude by a predetermined height from the outer peripheral surface of the cylindrical portion 11 to form a height difference. The first side portions 15 and 35 are structured to support both sides of the film substrate in the width direction, respectively, when the film substrate moves between the first body 10 and the second body 30 . Thus, the film substrate is only supported by a part of the area in contact with the first side portions 15, 35, rather than by the entire area corresponding to the first body 10 and the second body 30, thereby making it possible to adapt The appearance of the flexible circuit board (circuit wiring, protective layer, etc.) or damage to the back surface of the film substrate caused by the friction of the roller structure 1 is minimized.

In an embodiment of the present invention, the first body 10 and the second body 30 may include second side portions 16 , 36 along the directions of the first side portions 15 , 35 , respectively. In this case, the second side portions 16 and 36 may be disc-shaped members formed at both ends in the longitudinal direction of the variable-type roller structure 1 according to an embodiment of the present invention.

At this time, referring to FIG. 3 , the case where the second side portions 16 and 36 are formed independently of the first side portions 15 and 35 or the cylindrical portions 11 and 31 is shown, but it should be noted that the second side portions 16 and 36 It may be formed integrally with the first side portion 15 , 35 or the cylindrical portion 11 , 31 .

Moreover, the 2nd side parts 16 and 36 are formed adjacent to the 1st side parts 15 and 35, and can be formed by the diameter which expands with respect to the outer peripheral surface of the 1st side parts 15 and 35. That is, when the outer peripheral surface of the cylindrical portion 11 is used as a reference, the second side portions 16 and 36 may be higher than the first side portions 15 and 35 . This is because the second side portions 16, 36 are members that prevent the film substrate from moving left or right out of the moving section when the film substrate is positioned on the first side portions 15, 35 and moves.

As another example, the first side portions 15, 35 and the second side portions 16, 36 are formed with the same outer diameter to expand the area in contact with the film substrate, thereby enhancing the supporting force during transfer.

In addition, in an embodiment of the present invention, more than one hole may be formed in the second side portion 16 of the first body 10 . Thereby, the height difference adjusting member 20 described later can be combined with the first movable member 85 or the hub body 80 . This will be described in detail in the corresponding section.

Referring to FIG. 3 again, the first body 10 and the second body 30 of the variable-type roller structure 1 according to an embodiment of the present invention may respectively include a rotation formed by protruding toward the cylindrical portion 11 on one surface of the second side portions 16 and 36 . Shaft joints 14 and 34 .

Specifically, the rotating shaft coupling parts 14 and 34 are members extending from the second side parts 16 and 36 of the first body 10 and the second body 30 toward the cylindrical part 11 , and a hollow may be formed therein. At this time, the rotary shaft coupling portions 14 and 34 can be coupled to the rotary shaft 90 by inserting the rotary shaft 90 into the hollows formed in the rotary shaft coupling portions 14 and 34 . As a result, if the rotating shaft 90 is rotated by an external force, the rotating force is also transmitted to the first body 10 and the second body 30 through the rotating shaft coupling parts 14 and 34 engaged with the rotating shaft 90 . The two bodies 30 can rotate together with the rotating shaft 90 . Although not shown, the rotating shaft 90 and the rotating shaft coupling parts 14 and 34 are respectively formed with protruding parts and inserting parts so as to be connected in a mating manner or can be connected by bolts, forcibly snapped or the like.

FIG. 6 is a perspective view showing a part of the level difference portion and the movable member separated from the variable-type roller structure according to the embodiment of the present invention. 7 and 8 are diagrams for explaining the movement of the level difference portion of the variable-type roller structure according to the embodiment of the present invention.

The variable roller structure 1 according to an embodiment of the present invention includes a first height difference portion 50 , and the diameter of the first height difference portion 50 can expand or decrease toward the outside or inside of the radius of the rotating shaft 90 . At this time, the first height difference portion 50 is disposed between the first body 10 and the second body 30 and supports a part of the lower surface of the film substrate.

In more detail, referring to FIGS. 4 and 5 , according to a separate operation, the diameter of the first level difference portion 50 is made larger than the diameter of the cylindrical portion 11 of the first body 10 , thereby making the first level difference portion 50 and the thin film The undersides of the substrates are in contact. Different from this, the diameter of the first level difference portion 50 is the same as or smaller than the diameter of the cylindrical portion 11 , and thus may not be in contact with the lower surface of the film substrate.

To this end, the first height difference portion 50 may include a first moving member 52 that can move toward the outer side or the inner side in the radial direction of the rotation axis.

Specifically, the first level difference portion 50 may allow one or more first moving members 52 to be spaced apart along the circumferential direction of the rotation shaft 90 . For example, the first moving member 52 can be formed of a plate shape having an inner surface 56 in contact with an outer peripheral surface of a first movable member 85 described later and an arcuate outer surface as shown in the figure.

At this time, a part of the inner side surface 56 of the first moving member 52 may protrude toward the center direction of the rotating shaft to come into contact with the first protruding portion 84 a of the first movable member 85 . As described above, when a part of the inner side surface 56 of the first moving member 52 is in contact with the at least one first protrusion 84a formed on the outer peripheral surface of the first movable member 85, the first moving member 52 rotates from the rotating shaft The center of 90 is driven toward the outer direction and can expand the diameter of the first level difference portion 50 .

Meanwhile, a joint portion 58 for connecting with the first body 10 or the second body 30 may be formed on a plate of a predetermined width formed between the inner side surface 56 and the outer side surface of the first moving member 52 . For example, the connecting portion 58 may be in the shape of a hole passing through the first moving member 52 , and the individual connecting member may be connected to the first body 10 or the second body 30 through the connecting portion 58 . The size of the coupling portion 58 is the same as or larger than the maximum height of the first protruding portion 84a of the first movable member 85 described later, so that the following can be achieved. The guiding function is that the first moving member 52 can be moved in the radial direction of the rotating shaft, and the movement of the first moving member 52 in directions other than the radial direction of the rotating shaft can be restricted.

In addition, the variable-type roller structure according to an embodiment of the present invention may further include a support member 59 combined with one or more first moving members 52 . When the first moving member 52 moves in the radial direction of the rotating shaft 90 , the above-described supporting member 59 prevents the first moving member 52 from being separated from or separated from the variable-type roller structure 1 to be separated from each other. The above-mentioned support member 59 can be applied with hooks, springs, rubber belts, etc., and can be connected to one or more adjacent first movable members 52 or adjacent first movable members 85, or the n-th height difference portion or space maintaining portion 40, which will be described later. More than one of 42 in combination.

For example, the support member 59 is formed of an elastic spring, and can apply an external force to the first moving member 52 along the center direction of the rotation shaft 90 . This not only makes the first moving member 52 protrude in the radial direction and then returns in the direction of the rotation axis again, but also supports the protruding moving member 52 to prevent it from being detached toward the outside.

In an embodiment of the present invention, a plurality of first moving parts 52 may be formed along the rotation direction of the rotation shaft 90 . At this time, the first moving members 52 may be formed to be spaced apart from each other by a predetermined interval, and may be independently movable in contact with the first protrusions 84 a of the first movable members 85 .

The variable-type roller structure 1 according to an embodiment of the present invention is a structure in which the diameter of the first height difference portion 50 is changed along the radial direction of the rotating shaft 90 as required, and includes a first movable member 85 . That is, in order to adjust the degree to which the first level difference portion 50 protrudes from the outer peripheral surfaces of the first body 10 and the second body 30 , the first movable member 85 may be included in contact with the inner side surface 56 of the first level difference portion 50 .

More specifically, the first movable member 85 is a hollow member having a hollow formed so that the rotation shaft 90 can be inserted thereinto, and can be provided between the rotation shaft 90 and the first level difference portion 50 . In addition, the first movable member 85 is rotatable around the rotation shaft 90 .

6 and 7 , at least one first protruding portion 84a protruding toward the radially outer direction of the rotating shaft 90 on the outer peripheral surface may be formed on the outer peripheral surface of the first movable member 85 .

At this time, referring to FIG. 7 , as described above, a part of the inner side surface 56 of the first moving member 52 may protrude toward the center direction of the rotating shaft 90 . In addition, a portion of the protruding portion of the inner side surface 56 of the first movable member 52 protruded as described above may be located at a position where it contacts the protruding first protruding portion 84a of the first movable member 85 (the first position ).

In this case, the movable first moving member 52 is driven toward the outer direction from the center of the rotating shaft 90 through the first protrusion 84a. As a result, the diameter of the first level difference portion 50 can be expanded, and in more detail, the diameter of the region of the first level difference portion 50 corresponding to the first moving member 52 can be expanded. That is, when a part of the inner surface 56 engages with the first protrusion 84a of the first movable member 85, the first movable member 52 is pushed up to the outer side in the radial direction of the rotating shaft, whereby the first movable member The outer peripheral surface of 52 forms a height difference with respect to the form in which the cylindrical portion 11 of the first body 10 or the second body 30 protrudes outward in the radial direction of the rotating shaft 90 .

At this time, the reason why the first moving member 52 is not completely detached from the variable-type roller structure 1 is that there is a restraining force of the support member 59 .

On the other hand, referring to FIG. 8 , when the first movable member 85 rotatable around the rotation shaft 90 is rotated by a predetermined angle from the first position, the first protrusion 84 a also follows the rotation direction of the first movable member 85 . Rotate the specified angle. Thereby, the part 56 of the protrusion in the inner side part of the 1st moving member 52 and the 1st protrusion part 84a are no longer engaged (second position). As a result, the diameter of the first level difference portion 50 whose diameter is expanded at the first position is reduced, and in more detail, the diameter of the first moving member 52 is reduced. That is, as shown in FIG. 8, the 1st moving member 52 moves along the center direction of the rotating shaft 90, and the height difference formed in the 1st position also disappears.

At this time, if the support member 59 is formed of a member that exerts an elastic force such as a spring, the first moving member 52 can more easily move toward the inner or outer direction of the rotating shaft 90 .

As described above, the variable-type roller structure 1 according to an embodiment of the present invention can be pivoted around the rotating shaft 90 so that the first movable member 85 is located at the first position or the second position, and can be selectively selected according to requirements. form a height difference.

In one embodiment of the present invention, a plurality of the first protrusions 84 a of the first movable member 85 may be formed at predetermined intervals along the circumferential direction of the outer peripheral surface of the first movable member 85 .

At this time, one first moving part 52 may correspond to one first protrusion 84a one-to-one. That is, one first protrusion 84a may correspond to and contact with one first moving member 52 .

Different from it, in an embodiment of the present invention, with the rotation of the first movable member 85 , the plurality of first moving members 52 can be alternately contacted with the first protrusions 84a. That is, the first moving member 52 and the first protrusions 84a of the first movable member 85 can be brought into contact with each other in one-to-one correspondence.

As shown in FIGS. 4 and 5 , the variable-type roller structure 1 according to an embodiment of the present invention may include three height difference parts, such as a first height difference part 50 , a second height difference part 60 and a third height difference part 70 . Various height difference parts are formed. This is because by expanding or reducing the diameters of the three level difference portions, the supporting positions of the level difference portions supporting the lower surface of the film base material are changed according to the number of flexible circuit boards included in the width direction of the film base material. For example, the area corresponding to the height difference portion and the lower surface of the film substrate may be a positioning hole area for distinguishing each flexible circuit board or a peripheral area of the flexible circuit board.

First, referring to FIG. 6 , the first height difference part 50 , the second height difference part 60 and the third height difference part 70 may have a first moving part 52 , a second moving part 62 and a third moving part 72 , respectively. Further, movable members for expanding or reducing the diameter of each level difference portion may be provided, respectively, and the outer peripheral surfaces of these movable members may have first protrusions 84a, second protrusions 84b, and third protrusions 84c, respectively.

Referring again to FIG. 4 , one or more spacer holding portions 40 and 42 having a predetermined thickness may be formed along the longitudinal direction of the rotating shaft 90 between adjacent level difference portions. As described above, by arranging the space maintaining portions 40 and 42, one level difference portion can be arranged to be spaced apart from the other adjacent level difference portion, and the distance is maintained during driving to ensure transfer stability.

At this time, the spacers 40 and 42 are members having a diameter corresponding to the outer peripheral surface of the cylindrical portion 11 of the first body 10 and the second body 30 , and the rotating shaft 90 can pass through the inside similarly to the body. The formed hollow is inserted and combined.

In an embodiment of the present invention, these protrusions 84a, 84b, and 84c are arranged so as to alternate with the protrusions of adjacent height difference parts, and can be driven in coordination. Among them, as shown in FIG. 6 , the adjacent protruding parts are staggered with each other means that the first protruding part 84a and the adjacent second protruding part 84b or the third protruding part 84c protrude from each other on the outer peripheral surface of the movable member. Inconsistently configured. That is, among the adjacent protrusions, it may mean that the directions in which the protrusions protrude from the center of the rotation shaft 90 are different from each other.

At this time, if the first protruding portion 84a and the corresponding protruding inner side surface 56 are engaged with each other by appropriately rotating the three movable members that are connected to rotate integrally, the first level difference portion 50 can be rotated toward The shaft 90 is moved radially outward to form a height difference.

However, since the second protruding portion 84b, the third protruding portion 84c and the first protruding portion 84a are arranged in a staggered manner, they cannot fit with the corresponding protruding inner surfaces 66 and 76, and thus cannot form a height difference.

In contrast, referring again to FIG. 6 , when the movable member is rotated again so that the first protruding portion 84a and the protruding inner side surface 56 corresponding thereto do not cooperate, the second protruding portion 84b and the third protruding portion 84c It cooperates with the inner side surfaces 66, 76 which protrude in opposite directions. Thus, two height differences for supporting a portion of the film substrate can be formed.

According to the above-described driving principle of the level difference portion, the variable-type roller structure 1 according to an embodiment of the present invention can easily transfer flexible circuits having different numbers through a single roller structure without replacing the roller structure. Various film substrates for boards.

For example, referring to FIGS. 1 and 4 , in the case of transferring a film base material having two sets of flexible circuit boards, only the first level difference portion 50 located in the middle portion is expanded in the radial direction of the rotation axis, whereby it is possible to The center portion in the width direction of the film substrate is supported. At this time, the central portion of the film base material is supported by the first level difference portion 50 in order to prevent the base material such as the flexible circuit board from sagging toward the inner direction of the rotating shaft. Wherein, both sides of the film substrate can be supported by the first side portions 15 formed on the first body 10 and the second body 30 respectively.

Then, as shown in FIG. 2 , in the case of transferring the film base material having three sets of flexible circuit boards, as shown in FIG. The radial direction expands and moves the first height difference portion 50 in which the protruding portion and the second height difference portion 60 and the third height difference portion 70 are alternately arranged along the inner direction of the rotating shaft 90 , so that only the second height difference portion 60 can be formed. The height difference formed with the third height difference portion 70 . At this time, the second height difference part 60 and the third height difference part 70 may respectively support a part between the flexible circuit boards in the film base material.

As in the above example, even if the protruding parts of the adjacent height difference parts are not arranged in a staggered manner, various height difference parts can be arranged according to a desired design.

In the above-mentioned embodiment, the description is based on the case where there are three level difference parts, but two or four or more level difference parts (the first level difference part, the second level difference part, the second level difference part) may be formed. , ..., the nth height difference part (n is a natural number of 2 or more)). In addition, in order to expand or reduce the diameters of the plurality of level difference portions, n corresponding movable members (first movable member, second movable member, ..., n-th movable member (n is 2 or more) may be formed. number)).

In addition, the variable-type roller structure 1 according to an embodiment of the present invention may further include a height difference adjusting member 20 , and the height difference adjusting member 20 is a first movable member that rotates so as to expand or reduce the diameter of the first height difference portion 50 . 85 structure.

Referring to FIG. 1 , the height difference adjusting member 20 may be disposed on the outer side of at least one of the second side portions 16 of the first body 10 and the second body 30 . At this time, as shown in the figure, the height difference adjusting member 20 may be formed of a ring shape which can be pivoted at a predetermined angle with the rotation shaft 90 as the center.

More specifically, a separate connecting member connected to the height difference adjusting member 20 may pass through the arcuate through hole 17 formed in the second side portion 16 to be finally combined with the first movable member 85 or the hub body 80 described later. Thereby, the first movable member 85 can be rotated by the rotation of the height difference adjusting member 20 . Among them, the height difference adjusting member 20 is not only directly or indirectly connected to the first movable member 85, but also directly or indirectly connected to the second movable member, the third movable member, and the n-th movable member, whereby a plurality of movable members can be Parts rotate.

The movable member is moved by the rotation of the height difference adjusting member 20 as described above, whereby the moving members of the respective height difference portions can be driven. As a result, the diameter of each level difference portion can be expanded toward the radially outer direction of the rotating shaft 90 or reduced toward the radially inner direction of the rotating shaft 90 .

In another embodiment, one or more height difference adjusting members 20 may be provided, and each height difference adjusting member 20 is directly or indirectly connected to one or more movable members, whereby the rotational movement can be controlled differently according to the movable members. Thereby, even if the flexible wiring board which consists of mutually different widths is formed in the form of a plurality of sets on the film base material, it becomes easy to apply a level difference part according to a desired position.

In the variable roller structure 1 according to an embodiment of the present invention, instead of directly rotating the first movable member 85, the first movable member 85 may be indirectly rotated by providing and rotating the hub body 80 connected thereto.

In more detail, referring to FIG. 3 , like the first movable member 85 , the hub body 80 may be a member having a hollow cylindrical shape formed therein.

The cylindrically shaped hub body 80 can be inserted into the hollow along the hollow formed inside the first body 10 , the second body 30 or the first movable member 85 . That is, the outer peripheral surface of the hub body 80 may be in contact with the inner peripheral surface of the first body 10 , the second body 30 , or the movable member including the first movable member 85 . In addition, the rotating shaft coupling portion 14 of the first body 10 and the second body 30 can be inserted into the hub body 80 .

At this time, the first movable member 85 formed with the first protruding portion 84a may be fixed to the outer peripheral surface of the hub body 80 by a separate coupling member such as a bolt. Thereby, the hub body 80 and the first movable member 85 can be rotated integrally. As described above, if the hub body 80 is provided between the rotating shaft coupling portion 14 of the first body 10 and the second body 30 and the first movable member 85 , the first movable member 85 can be rotated by rotating the hub body 80 And change the diameter of the height difference part.

At this time, the hub body 81 may be connected to the height difference adjusting member 20 through a separate connecting member. That is, the hub body 80 can be rotated by the rotation of the height difference adjusting member 20 .

As described above, when the variable-type roller structure 1 according to an embodiment of the present invention includes the hub body 81, a plurality of movable members corresponding to a plurality of level difference portions can be advantageously arranged. That is, as shown in FIG. 1 , after the ring-shaped movable member is formed separately, it can be freely combined with the hub body 80 according to the design. Of course, various methods such as forcibly snapping, bolting, and inserting can be applied to the combination.

As described above, the variable roll structure according to an embodiment of the present invention has the effect of changing the structure of the level difference portion without changing the roll structure, thereby enabling various film substrates to be efficiently transferred. Thereby, the time and cost for replacing the roller structure can be reduced.

An embodiment of the present invention has been described above, but the idea of the present invention is not limited to the embodiments set forth in this specification, and those of ordinary skill who understand the idea of the present invention can understand the concept of the present invention by changing the structural elements within the scope of the same idea. It is easy to propose other embodiments such as additions, changes, deletions, additions, etc., and these other embodiments are also included in the scope of the idea of the present invention.

1: Variable type roller structure 10: The first body 11,31: Cylinder part 14,34: Rotary shaft joint 15,35: First side 16,36: Second side 20: Height difference adjustment parts 30: The second body 40, 42: Spacer Keeping Section 50: First height difference part 52: First moving part 56,76: inner side 58: Joint 59: Support parts 60: Second height difference part 62: Second moving part 70: The third height difference part 72: Third moving part 80: hub body 84a: first protrusion 84b: Second protrusion 84c: Third protrusion 85: The first movable part 90: Rotation axis

FIGS. 1 and 2 are perspective views showing that the variable-type roller structure according to an embodiment of the present invention transfers a film substrate having two sets of flexible circuit boards and three sets of flexible circuit boards, respectively. 3 is an exploded perspective view showing a variable-type roller structure according to an embodiment of the present invention. FIGS. 4 and 5 are views of the variable-type roller structure according to the embodiment of the present invention when viewed in a direction perpendicular to the extending direction of the rotating shaft. FIG. 6 is a perspective view showing a part of the level difference portion and the movable member separated from the variable-type roller structure according to the embodiment of the present invention. 7 and 8 are diagrams for explaining the movement of the level difference portion of the variable-type roller structure according to the embodiment of the present invention.

1: Variable type roller structure

10: The first body

15,35: First side

16,36: Second side

20: Height difference adjustment parts

30: The second body

50: First height difference part

60: Second height difference part

70: The third height difference part

Claims (14)

A variable-type roller structure is characterized in that, comprising: The first body and the second body are formed in a cylindrical shape; a first height difference portion disposed between the first body and the second body; and The first movable member is provided in contact with the first height difference portion, The diameter of the first height difference portion is changed by the rotational movement of the first movable member. The variable-type roller structure according to claim 1, wherein: The first body and the second body respectively include: the cylindrical portion; and The first side portion is formed on one side surface of the cylindrical portion with a predetermined width along the end portion direction of the cylindrical portion, The first side portion protrudes from the outer peripheral surface of the cylindrical portion to form a height difference, The first body and the second body are arranged in an opposite shape. The variable roll structure according to claim 2, wherein: The first body and the second body further include a second side portion along the direction of the first side portion, respectively, The outer peripheral surface of the second side portion is formed of the same diameter as the outer peripheral surface of the first side portion or is formed of a diameter expanded relative to the outer peripheral surface of the first side portion. The variable-type roller structure according to claim 1, wherein: The first height difference part includes more than one first moving part, The inner side surface of the first movable member is in contact with the outer peripheral surface of the first movable member, When the inner surface of the first movable member is in contact with the first protrusion protruding from the outer peripheral surface of the first movable member, the first movable member is driven from the rotation center of the first movable member toward the outer direction and The diameter of the first level difference portion is expanded. The variable-type roller structure according to claim 4, wherein: The first moving part is formed in a one-to-one correspondence or a multi-to-one correspondence with the first protruding part of the first movable part, When the first moving member or the first protruding portion is formed by a plurality of pieces, the adjacent first moving members or the first protruding portions are formed with a predetermined interval therebetween. The variable-type roller structure according to claim 3, wherein between the first body and the second body includes two or more nth height difference parts, and the nth height difference part includes one or more The n-th moving part forms one or more spacer holding parts between the adjacent n-th height-difference parts. The variable-type roller structure according to claim 6, wherein n n th movable members are formed so as to correspond to n n n th height difference portions. The variable-type roller structure according to claim 4 or 6, wherein: The first moving part also includes one or more supporting parts, The support member combines one or more of the first body, the second body, the n-th height difference portion or the space maintaining portion with the first moving member. The variable-type roller structure according to claim 7, wherein the n-th movable member is formed such that adjacent n+1-th movable members or n-1-th movable members and n-th protrusions intersect with each other. The variable-type roller structure according to claim 7, wherein: also includes a hub body combined with the second side portion, The outer peripheral surface of the hub body is formed so as to be in contact with the inner peripheral surface of the first body, the second body or the movable member. The variable-type roller structure according to claim 3, wherein: Also includes a rotating shaft engaged with the first body and the second body, The first movable member is disposed between the rotating shaft and the first height difference portion. The variable-type roller structure according to claim 11, wherein the first body and the second body include a rotating shaft joint portion formed on one surface of the second side portion toward the cylindrical portion. The variable-type roller structure according to claim 11, further comprising a height difference adjusting member disposed on the outer side of at least one of the second side portions of the first body and the second body, and capable of using the The rotation shaft rotates around the center to rotate the first movable member. The variable-type roller structure according to claim 7, wherein: Also includes a height difference adjusting member for controlling the rotational movement of the first movable member, One or more of the height difference adjusting components are provided to correspond to the first movable component to the n th movable component one-to-one or many-to-one.

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