KR20180062093A - Curling Apparatus for Forming the Cup - Google Patents

Abstract

The present invention relates to a curling apparatus for forming a cup container. The purpose of the present invention is to provide the curling apparatus for forming the cup container, which accurately and simply performs a centering adjustment operation of forming rollers according to the change of an outer diameter size of the cup container, and which can promote full automation of a process of curling and forming an end portion of the cup container. The curling apparatus according to an embodiment of the present invention, as an apparatus for curling bottom paper and an end portion of a cylindrical main body formed by rolling up cut side paper in a cylindrical shape such that the bottom paper is brought into contact with the end portion, comprises: a forming unit which includes a plurality of sliders including the forming rollers having a forming groove formed to be recessed in an outer surface of the body thereof, and which is in contact with the end portion of the cylindrical main body; a cover base in which a plurality of guide units are formed so that the plurality of sliders are guided and moved in a radius direction; a main body base which is assembled with the cover base and rotated in one direction along with the cover base by a rotation driving source; and a centering adjusting unit in which a rotation gear, having a first gear formed on one side surface thereof and engaged with driven gears formed in the sliders, is rotatably disposed between the cover base and the main body base, and which includes an adjusting member including driving gears engaged with a second gear formed in the other side surface of the rotation gear such that the sliders are reciprocated in a radius direction by forward or reverse rotation of the rotation gear interlocked with the adjusting member due to the rotation.

Description

[0001] The present invention relates to a curling apparatus for forming a cup container,

The present invention relates to a curling apparatus used for forming a curled portion to contact an edge of a side edge of a side of a cup, which is a cylindrical body of a cup container.

In addition to industrial development, disposable products are being mass-produced and used in pursuit of convenience in human life. For example, various paper products such as cups, bowls, and dishes are produced using paper materials.

In general, a disposable cup container such as a paper cup container is manufactured by coating synthetic resin on a sheet of paper material, making a side paper which is a tapered cylindrical body by using the same, and adhering a bottom sheet as a disk-

Such a cup container is very light and can be discarded immediately after use, so that it can be used freely in everyday life, has a relatively low manufacturing cost and can be recycled.

The process of forming and molding such a cup container is as follows. First, a synthetic resin film is bonded to a paper sheet to form a coated paper, and the coated paper is cut into a fan shape so as to be formed into a cup shape.

Then, the bottom of the cylindrical body is adhered to the lower end of the cylindrical body to complete the first closed cup. Then, the end of the bottom is rolled and adhered to the bottom to manufacture a cup container. It is finished.

In the process of manufacturing such a conventional cup container, the process of forming the cylindrical body by rolling the side surface in a cylindrical shape and then adhering and adhering the bottom is performed in order to improve the adhesion to the bottom and to form a bend contacting the bottom surface, A curling process should be performed to bend the lower end inward.

(Patent Document 1) KR10-1200248 B1

Patent Document 1 discloses a side curl preliminary curling unit for curling a side paper, which is a cylindrical body, inwardly. Such a side preliminary curling unit includes a conveying belt installed on a base, a slider for conveying along the conveying belt, And a curling portion.

The pre-curling unit includes a plurality of shaping rollers equidistantly spaced circumferentially with respect to a rotation center of a disk rotating at high speed, and the end of a side surface of a cylindrical body is brought into contact with a groove of a shaping roller provided on a disk rotating at high speed A curling process for bending the end of the side edge to the inside is performed.

However, when the type and size of the cup container to be formed is changed and the size of the outer diameter of the cup container is increased or decreased, the operator rotates the adjustment screw provided on the outer side of the disk in accordance with the outer diameter of the cup container, It is necessary to carry out the centering adjustment operation for individually adjusting the position of the forming rollers in the direction of the centering direction. However, since the centering operation due to the position adjustment must be repeatedly performed, the time required for the centering operation is excessively long, It was the main cause.

In addition, after the centering adjustment operation for the shaping roller is performed, the operator must operate the shaping machine to precisely center the shaping roller, so that it is necessary to re-check whether the curling shaping to the lower end of the side of the cylindrical body, Therefore, there is a problem in that the workload of the worker is large, and the process of curling and molding the end portion of the cup container is completely automated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a cup container capable of performing a centering adjustment operation of a forming roller according to a change in outer diameter of a cup container more easily, And to provide a curling apparatus for molding production.

The present invention is not limited thereto, and other objects not mentioned may be clearly understood by those skilled in the art from the following description.

The present invention provides a curling apparatus used for forming the curled portion so that the end of the cylindrical body is curled and brought into contact with the base.

According to an embodiment of the present invention, a curling apparatus for manufacturing a cup container includes a cylindrical body formed by cutting a cut-out side sheet into a cylindrical shape and curling the end portion of the cylindrical body in contact with the bottom of the cylindrical body, A forming part including a slider having a shaping roller, the end of the cylindrical body being in contact with the shaping part; A cover base for forming a plurality of guide portions so that the plurality of sliders are guided in a radial direction; A main base mounted on the cover base and rotated in one direction together with the cover base by a rotation driving source; And a rotary gear formed on one side of a driven gear formed on the slider and a first gear engaged with the gear are rotatably disposed between the cover base and the main body base, And a centering adjusting unit that includes an adjusting member having a driven gear to be engaged and reciprocates the slider in a radial direction by forward or reverse rotation of the rotating gear interlocked with rotation of the adjusting member.

According to one embodiment, the guide portion may include a cutout portion for externally exposing the driven gear formed on the slider.

According to one embodiment, the driven gear may be integrally formed on the lower surface of the slider corresponding to the rotary gear, or may be provided in a replaceable manner.

According to an embodiment of the present invention, the main body base includes a to-be-engaged portion protruding from a bottom surface at a predetermined height, and the cover base is seated in a seating groove recessed in the end portion of the to- Section.

According to an embodiment of the present invention, a first outer skirt portion is formed on an outer side of the engaging portion so as to embed a first cavity in which the rotary gear is disposed, and a rotary gear is disposed on the outer side of the engaged portion in correspondence with the first cavity And may include a second outer skirt portion to recess the second cavity.

According to one embodiment, the to-be-engaged portion may include a support ring inserted into a center hole formed through a seating groove of the engaged portion and in contact with an end portion of the engagement portion.

According to one embodiment, the rotary gear includes a rotation hole formed through the center of the body so as to be rotatably assembled to the coupling portion extending from the cover base or rotatably assembled to the coupling portion extending from the main body base .

According to an embodiment of the present invention, the first gear comprises a driven gear formed in a shape of an arcuate spur gear on the lower surface of the slider, and a spiral gear meshed with gear, and the second gear is provided on an inclined outer surface of the adjustment member A driving gear formed in a bevel gear shape and another bevel gear engaged with the gear.

According to one embodiment, the adjustment member includes a first outer semicircular groove recessed in a first outer skirt portion extending from an outer edge of the cover base, and a second outer semicircle recessed in a second outer edge portion extending from an outer edge of the body case. And a first support shaft rotatably supported on the second outer semicircular groove to be formed.

According to an embodiment of the present invention, the first support shaft may be formed with a connection groove to which a tool or an actuator is connected to facilitate the rotation operation of the adjustment member in a forward direction or a reverse direction.

According to one embodiment, the adjustment member is rotatably mounted on a second inner semicircular groove recessed in the engaging portion extending from the cover base and a second inner semicircular groove recessed in the engaged portion extending from the rotary base And a second support shaft supported by the first support shaft.

According to the embodiment of the present invention, since the position of the forming roller is changed according to the change in the outer diameter of the cup container and the adjustment operation for centering the center of rotation is performed more accurately and simply, It is possible to reduce the workload of the worker to increase the productivity of the work, and to fully automate the process of curling and forming the end portion of the cup container, thereby reducing the manufacturing cost.

The effects of the present invention are not limited to the above-mentioned effects, and the effects not mentioned can be clearly understood by those skilled in the art from the present specification and attached drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall perspective view showing a curling apparatus for manufacturing a cup container according to an embodiment of the present invention; FIG.
2A and 2B are exploded perspective views showing a curling apparatus for manufacturing a cup container according to an embodiment of the present invention.
FIGS. 3A and 3B are cross-sectional views showing a curling apparatus for forming a cup container according to an embodiment of the present invention.
Figs. 4A and 4B are operational state diagrams showing centering operations in a cupping container forming cullering apparatus according to an embodiment of the present invention. Fig.
FIG. 5 is an overall view showing a curing operation of a container in a curling apparatus for manufacturing cup container molding according to an embodiment of the present invention. FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the following embodiments. This embodiment is provided to more fully describe the present invention to those skilled in the art. Accordingly, the shape of the elements in the figures may be exaggerated in order to emphasize a clearer description. In addition, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings, and the inventor should appropriately define the concept of the term to describe its invention in the best way possible. It should be construed as meaning and concept consistent with the technical idea of the present invention.

FIG. 1 is an overall perspective view showing a curling apparatus for forming a cup container according to an embodiment of the present invention, FIGS. 2a and 2b are exploded perspective views showing a curling apparatus for forming a cup container according to an embodiment of the present invention, 3A and 3B are cross-sectional views showing a curling apparatus for manufacturing a cup container according to an embodiment of the present invention.

1 to 3B, the cupping container forming curling apparatus 100 is configured such that a curled side surface 11 is curled in a cylindrical shape so as to be curled so that the end of the cylindrical body is in contact with the bottom 12, 110, a cover base 120, a main body base 130, and a centering control unit 140.

The forming unit 110 includes a shaping roller 114 and a slider 115 to form a curled portion by contacting an opened end of the side surface 11, which is a cylindrical body to be molded.

The shaping roller 114 is composed of a roller member having a substantially rectangular shape formed by recessing a forming groove 112 on the outer surface of the body. The slider 115 has the shaping roller 114 on its upper surface, And may be a substantially rectangular parallelepiped block structure that is slidably moved along the guide portion 125 of the base 120 in the radial direction.

Here, the shaping roller 114 may be idly rotatably assembled by a shaft member 113a between a pair of support plates 113 provided on the upper surface of the slider.

The slider 115 may include rail guiding grooves 115a formed on both sides of the slider 115 so as to be coupled to the rail 125a protruding from the guide portion. However, the present invention is not limited thereto, And a rail guide groove protruded to be coupled to the guide groove.

The lower surface of the slider 115 facing the rotary gear 143 may include a first gear 141 formed on the rotary gear and a driven gear 111 engaged with the gear.

At this time, although the driven gear 111 is illustrated as being integrally formed on the lower surface of the slider 115, the gear engagement ratio with the first gear, which is changed in accordance with the replacement of the rotary gear, The distance traveled by the linear distance can be changed.

The cover base 120 is a substantially disc member formed by recessing a plurality of guide portions 125 in the circumferential direction at equal intervals so that the plurality of sliders 115 having the shaping roller 114 are guided in the radial direction Lt; / RTI >

Here, the plurality of guide portions 125 are shown as being assembled in such a manner that four sliders 115 are slidably moved at intervals of about 90 degrees in the circumferential direction. However, the present invention is not limited thereto, Six sliders 115 may be assembled or six sliders 115 may be assembled at intervals of 60 degrees.

The plurality of sliders 115 slidable in the guide portion are moved toward or away from the center of the rotation center in accordance with the outer diameter of the cup container 10 to be curled to perform a centering adjustment operation .

The rails 125a formed on both side surfaces of the slider 115 are slidably moved on the inner side surfaces of the guide portions 125 facing each other so that the guiding movement of the slider 115 in the radial direction can be smoothly performed, Thereby forming a rail guide groove 125a which is assembled as much as possible.

The bottom surface of the guide portion 125 includes an opening 121 cut out to externally expose the driven gear 111 formed on the bottom surface of the slider. Is engaged with the first gear of the rotary gear.

The main body base 130 is directly or indirectly connected to a driving shaft of a rotation driving source 30 such as a driving motor and is integrally assembled with the lid base 120 so that the cover base 120, which are rotated in one direction.

The main body base 130 includes a cylindrical portion 138 to be projected at a predetermined height from a bottom surface of the cover base 120. The cover base 120 includes a seating groove 138a And a cylindrical coupling portion 128 protruding to a predetermined height for corresponding engagement.

A first outer skirt portion 129 is formed on the outer side of the engaging portion 128 of the cover base 120 so as to embed a first cavity C1 in which the rotary gear 143 is disposed, And the second outer skirt portion 139 may be formed outside the coupled portion 138 of the first cavity 142 so as to embed the second cavity C1 in which the rotary gear 143 is disposed corresponding to the first cavity C1. have.

Accordingly, the first and second cavities (C1, C2) facing each other when the cover base and the main body base are vertically combined form a space in which the rotary gear (143) is disposed, The lid base and the main body base are integrally assembled and assembled by a fastening member (not shown) fastened through fastening holes formed in the skirt portions 129 and 139.

The upper surface of the cover base 120 and the upper surface of the main body base 130 are connected to each other by a gap between the cover base 120 and the main body base 130, And a support ring 137 inserted into a center hole 138b formed in the seating groove 139 of the coupled portion 138 so as to be able to adjust an installation height and in contact with an end portion of the coupling portion 128 have.

The centering adjusting unit 140 includes a rotation gear 143 interposed between the cover base 120 and the main body base 130 to be engaged with the slider 115, (Not shown).

The rotary gear 143 is formed on one side of the first gear 141 so as to be engaged with the driven gear 111 formed on the lower surface of the slider 115, 145 and a second gear 142 that is engaged with the gear, on the other side.

The rotary gear 143 has been illustrated as having a turn hole 143a formed at the center of the body to be rotatably assembled to the engaging portion 128 extending from the cover base 120. However, And can be rotatably assembled to the engaged portion 138 extending from the main body base 130.

The first gear 141 of the rotary gear 143 exposed through the opening 121 formed in the guide portion of the cover base 120 is gear-engaged with the driven gear 111 of the slider 115 It is preferable that a rotation hole is rotatably inserted into the coupling portion 128 and a plane not having the second gear 142 is raised and abutted on the upper end of the coupling portion 138 of the main body base 130 .

The first gear 141 includes a driven gear 111 formed in a shape of an arc-shaped spur gear on the lower surface of the slider 115 and a spiral gear engaged with the gear, A driving gear 145 formed in a bevel gear shape on the outer surface of the adjusting member 146 and another bevel gear engaged with the gear.

The adjusting member 146 is formed of a truncated cone member having an inside diameter gradually reduced toward the center of rotation of the main body base 130 rotated in one direction along with the forming unit and the cover base during the curling process, And a driving gear 145 that meshes with the second gear 142 of the rotary gear 143 and transmits a rotational force to the inclined outer surface.

The adjustment member 146 includes a first outer semicircular groove 129a formed in a first outer skirt portion 129 extending from an outer edge of the cover base and a second outer semicircular groove 129b extending from the outer edge of the body case 130 A first support shaft 146a rotatably supported on a second outer semicircular groove 139a formed in the outer rim 139 and a second support semicircular groove 139b formed in the outer rim groove 139a, And a second support shaft 146b rotatably supported in a second inner semicircular groove 129b and a second inner semicircular groove 139b recessed in a coupled portion 138 extending from the rotary base .

The first supporting shaft 146a, which is exposed to the outer surface of the assembling structure in which the cover base and the main body base are assembled, is rotatable in a forward or reverse direction of the adjusting member by an actuator such as a wrench or a motor, It is preferable to form the connection groove 146c so as to facilitate the operation.

Accordingly, when the adjusting member 146 of the centering adjusting unit 140 is rotated in the forward or reverse direction by the tool or the actuator coupled to the connecting groove, the second gear is engaged with the driving gear of the adjusting member 140 The rotation gear 143 is rotated in the clockwise or counterclockwise direction with respect to the engaging portion or the engaged portion formed at the rotation center between the cover case and the main body case, A plurality of sliders 115 having driven gears to be driven are simultaneously guided along the guide portions 125 of the cover case in the radial direction in proportion to the number of revolutions of the regulating member.

That is, as shown in FIGS. 4A and 4B, when a plurality of sliders 115 having the shaping roller 114 are rotated in the counterclockwise direction in the drawing by the reverse rotation operation of the regulating member , The slider is simultaneously guided so as to be close to the rotation center by gear engagement between a first gear formed on a spiral gear on one side of the rotary gear and a driven gear formed on the slider.

The outer diameter of the imaginary circle O1 drawn through the molding groove 112 in contact with the edge of the side edge 11 of the cup container 10 as the object of curling molding can be reduced.

On the contrary, when the rotary gear is rotated in the clockwise direction in the figure by the reverse rotation of the regulating member 146, due to gear engagement between the first gear of the rotary gear and the driven gear of the slider, The outer diameter of the virtual circle O1 drawn while passing through the molding groove 112 can be enlarged.

Accordingly, when the size of the outside diameter of the side edge 11 of the paper cup 10 as the object to be molded is varied, the rotation direction of the rotation gear 143 interlocked by the simple rotation operation of the control member 146, The centering adjustment operation for guiding the plurality of sliders toward or away from the rotation center due to the backward rotation and the amount of rotation thereof can be performed simply and quickly.

5, when the side edge 11 of the cup container 10 is inserted and fixed in the mandrel turret 20, the driving source 30 is rotated in the state where the centering operation of the forming roller 114 is completed. A step of bending the edge of the side paper by inwardly curling by the forming roller of the curling apparatus 100 which is rotated in one direction is performed and a post-process of joining the edge of the curled side paper to the base paper is performed, It can be completed.

Meanwhile, in a state where the control unit is electrically connected to the motor member, which is an actuator that is connected to the control member 146 to generate a rotational driving force, the control unit controls the amount of the outer diameter of the edge of the cup paper, When the change information is inputted, the centering operation of the forming roller can be automatically performed by guiding the slider in accordance with the change in the outer diameter, so that the preliminary work of curling molding such as the centering adjustment operation for the curling molding operation can be performed on the work load It can be performed more easily and accurately.

The foregoing detailed description is illustrative of the present invention. In addition, the foregoing is intended to illustrate and explain the preferred embodiments of the present invention, and the present invention may be used in various other combinations, modifications, and environments. That is, it is possible to make changes or modifications within the scope of the concept of the invention disclosed in this specification, within the scope of the disclosure, and / or within the skill and knowledge of the art. The above-described embodiments illustrate the best mode for carrying out the technical idea of the present invention, and various modifications required for specific application fields and uses of the present invention are also possible. Accordingly, the detailed description of the invention is not intended to limit the invention to the disclosed embodiments. It is also to be understood that the appended claims are intended to cover such other embodiments.

110: forming part 111: driven gear
112: forming groove 114: forming roller
115: slider 120: cover base
121: opening part 125: guide part
128: engaging portion 129: first outer rim portion
130: main body base 137: support ring
138: engaged portion 139: second outer edge portion
140: centering control unit 141: first gear
142: second gear 143: rotary gear
145: driving gear 146: adjusting member

Claims (11)

An apparatus for curling a cut side face of a cylindrical body so that the cut end faces a bottom face of the cylindrical body,
A molding part including a slider having a forming roller formed by recessing a forming groove on an outer surface of the body, the end of the cylindrical body being in contact with the forming part;
A cover base for forming a plurality of guide portions so that the plurality of sliders are guided in a radial direction;
A main base mounted on the cover base and rotated in one direction together with the cover base by a rotation driving source; And
A rotating gear which is formed on one side of a driven gear formed on the slider and a first gear engaged with the gear is rotatably disposed between the cover base and the main body base, a second gear formed on the other side of the rotating gear, And a centering adjuster for reciprocating the slider in a radial direction by forward or reverse rotation of the rotary gear interlocked with rotation of the adjusting member. The method according to claim 1,
Wherein the guiding portion includes a cutout portion for externally exposing a driven gear formed on the slider. The method according to claim 1,
Wherein the driven gear is integrally formed on the lower surface of the slider corresponding to the rotary gear or is provided in a replaceable manner. The method according to claim 1,
Wherein the main body base includes a coupled portion protruding from the bottom surface at a predetermined height,
Wherein the lid base is mounted on a seating groove recessed in an end portion of the to-be-engaged portion and protrudes from the seating base at a predetermined height so as to correspond to each other. 5. The method of claim 4,
And a first outer skirt portion formed on an outer side of the engaging portion to form a first cavity in which the rotary gear is disposed,
And a second outer skirt portion formed on an outer side of the coupled portion to form a second cavity in which the rotary gear is disposed so as to correspond to the first cavity. 5. The method of claim 4,
Wherein the to-be-engaged portion includes a support ring inserted into a center hole formed in a seating groove of the to-be-coupled portion and in contact with an end portion of the coupling portion. The method according to claim 1,
Wherein the rotary gear comprises a rotation hole formed in the center of the body so as to be rotatably assembled to a coupled portion rotatably assembled to the coupling portion extending from the cover base or extending from the main body base, . The method according to claim 1,
Wherein the first gear comprises a driven gear formed in a shape of an arc-shaped spur gear on a lower surface of the slider, and a spiral gear meshed with gear,
And the second gear comprises a driving gear formed in a bevel gear shape on an inclined outer surface of the adjusting member and another bevel gear engaged with the gear. The method according to claim 1,
Wherein the adjusting member includes a first outer semicircular groove recessed in a first outer skirt portion extending from an outer edge of the cover base and a second outer semicircle recessed in a second outer rim portion extending from an outer rim of the main body case, And a first support shaft rotatably supported in the groove. 10. The method of claim 9,
Wherein the first support shaft is formed with a connection groove in which a tool or an actuator is connected to facilitate rotation of the adjustment member in a forward direction or a reverse direction. The method according to claim 1,
Wherein the adjusting member includes a second inner semicircular groove recessed in the engaging portion extending from the cover base, and a second supporting shaft rotatably supported in a second inner semicircular groove recessed in the engaged portion extending from the rotary base, A cupping container forming curing apparatus comprising:

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