KR102397654B1 - Method for manufacturing paper lid with accomodating groove - Google Patents

Abstract

According to the present invention, a method for manufacturing a paper lid having a top plate and a side wall installed downward on the rim of the top plate and having a receiving groove for accommodating the upper edge of a container in the rim of the top plate includes the steps of: (a) making a drawing along a drawing line that is a boundary line between a top plate region and a side wall region of a paper lid raw sheet having the top plate region corresponding to the top plate and the side wall region on the outside of the top plate region where wrinkle patterns extending outward from the top plate region are formed, so as to form a paper lid having the top plate and the corrugated sidewall, and forming a top plate shape including beading, which is the receiving groove, in an edge region of the top plate; (b) forming an incurl on the sidewall of the paper lid; and (c) compressing the in-curl to the sidewall.

Description

Method for manufacturing a paper lid having a receiving groove

The present invention relates to a method for manufacturing a paper lid, and more particularly, for manufacturing a paper lid having a top plate and a side wall installed downwardly on the edge of the top plate, and having a receiving groove formed on the edge of the top plate to accommodate the upper edge of a container. it's about how

In general, containers processed using various materials such as paper material, plastic material, and aluminum material are used to store the contents of food and food, etc. A lid is used to block the container from the external environment in order to prevent it from happening.

In particular, the use of disposable containers is increasing, and accordingly, disposable lids suitable for disposable containers are widely used.

The lid of such a container is generally manufactured by injection of a plastic material, and due to the nature of plastic, it is difficult to dispose as well as adversely affects the environment. Recently, a paper lid using a paper material is widely used.

Conventional paper lids typically have a top plate and a side wall installed downwardly on the edge of the top plate, and when covered with a container, the top plate covers the opening of the container, and the side wall is located on the side of the container.

In this case, the conventional paper lid has a simple shape, and most of the containers used with the paper lid have a curled shape at the edge of the opening. On the other hand, since the paper lid does not have a structure corresponding to the curled shape of the edge of the opening of the container, adhesion between the paper lid and the container is insufficient. Therefore, when the paper lid is put on the container, there is a problem that the contents inside the container easily come out between the container and the paper lid by an action such as turning the container over.

Accordingly, there is a need for a paper lid that enhances the bonding force between the container and the paper lid when the paper lid is placed on the container and prevents the contents from easily coming out.

An object of the present invention is to form a receiving groove for accommodating the upper edge of the container on the edge of the top plate so that the paper lid is more easily attached to the container so that the contents do not easily come out.

Another object of the present invention is to provide a method for easily manufacturing a paper lid using a lid pattern generating unit, a turret, a drawing unit, and a paper lid forming machine.

In order to achieve the object of the present invention as described above and to realize the characteristic effects of the present invention to be described later, the characteristic configuration of the present invention is as follows.

According to one aspect of the present invention, there is provided a method for manufacturing a paper lid having a top plate and a sidewall installed downwardly on the edge of the top plate, and a receiving groove for accommodating the upper edge of the container is formed on the edge of the top plate, (a ) along a drawing line that is a boundary line between the top plate region and the side wall region of a paper lid base paper having a top plate region corresponding to the top plate and a side wall region in which wrinkle patterns extending outward from the top plate region are formed outside the top plate region forming the top plate into a paper lid having the top plate and the wrinkled sidewall by drawing, and forming a top plate shape including the beading as the receiving groove in the edge region of the top plate; (b) forming an in curl on the sidewall of the paper lid; and (c) pressing the in-curl to the sidewall.

As an example, in step (a), the top plate region of the paper lid material having a top plate region corresponding to the top plate and a sidewall region on which wrinkle patterns extending outwardly from the top plate region are formed outside the top plate region; A lid holding hole corresponding to a drawing line, which is a boundary line of the sidewall region, and a beading groove formed inside the lid holding hole, moving back and forth in the lid holding hole, having the shape of the top plate, and corresponding to the receiving groove in the rim region At least one lid holder including the formed lower mold uses a turret that is intermittently rotated by coupling at least one such that the lid holding hole is in a horizontal direction, wherein the paper lid forming means uses the paper lid base paper to form the lid holding hole of the lid holder Drawing along the drawing line to the inside to form a paper lid having the top plate and the wrinkled sidewall, pressing the top plate of the paper lid with an upper mold symmetrical to the lower mold to form a top plate on the top plate and the A paper lid manufacturing method is provided for forming the beading, which is the receiving groove, in the edge region of the top plate.

As an example, the paper lid forming means may include pressing the paper lid base paper into the lid holding hole of the lid container through a drawing means into a first upper mold having a flat shape along the drawing line, so that the top plate and the side wall Drawing with a paper lid having A method of making a paper lid that forms a bead is provided.

As an example, the drawing means includes a support plate, a punching body, and a drawing body positioned inside the punching body, wherein the support plate has an outer edge that is larger than the edge of the sidewall region and forms a plate hole corresponding to the drawing line. and located between the punching body and the lid receiver, the punching body has a hole corresponding to the drawing line and an outer edge corresponding to the edge of the sidewall region, the drawing body is located within the hole of the punching body and has a rim corresponding to the drawing line, and the central axes of the punching body and the drawing body are horizontally aligned so that the central axes of the lid receiver and the drawing body coincide with each other. The punching body presses the base paper to the support plate by advancing the punching body and the drawing body, and punches it into a plate shape corresponding to the edge of the side wall region. to generate the paper lid base paper, and the drawing body draws the paper lid base paper into the lid holding hole, so that the top plate region is pressed into the lower mold to have the top plate and the wrinkled sidewall. A method of making a paper lid drawing with a lid is provided.

As an example, in the step (a), there is provided a paper lid manufacturing method in which the paper lid having the top plate shape is heat-treated in order to maintain the moldability of the container lid.

As an example, (a01) a lid pattern generating step of forming the sidewall region on the outside of the top plate region corresponding to the top plate on the paper stock supplied in the form of a band having a constant width; and (a02) punching the edge of the sidewall region formed on the base paper to generate the base paper for the lid.

As an example, in step (b), the end of the sidewall is incurled to form a first in curl on the sidewall, and the end of the first incurl is incurled to form a second incurl on the sidewall, thereby forming the sidewall. A method of manufacturing a paper lid for forming an incurl is provided.

As an example, in step (b), the sidewall on which the first incurl is formed is subjected to a first heat treatment, and the sidewall on which the second incurl is formed is subjected to a second heat treatment, or the sidewall is subjected to a first heat treatment and then the sidewall There is provided a method for manufacturing a paper lid in which the first incurl is molded into a paper cap, the sidewall on which the first incurl is formed is subjected to a second heat treatment, and then the second incurl is formed on the sidewall.

As an example, the step (b) provides a method for manufacturing a paper lid in which the sidewall is heat-treated before forming the in-curl, or the sidewall is heat-treated after forming the in-curl.

As an example, in step (c), the in-curl is pressed to the sidewall, and at the same time, an extended area that is a predetermined area from the end of the sidewall is pressed in a direction toward the side of the lid holding hole so that the extended area is larger than the top plate. A method of making a paper lid having a wide perimeter is provided.

As an example, (d) pressing an extended area, which is a predetermined area from the end of the side wall of the paper lid, in which the in-curl is pressed against the side wall, in a direction toward the side of the lid holding hole, so that the extended area is wider than the top plate There is provided a method further comprising;

As an example, there is provided a method for manufacturing a paper lid further comprising: (e) forming a curl at the end of the side wall to which the in-curl is pressed.

According to the present invention, a receiving groove for accommodating the upper edge of the container is formed on the edge of the top plate so that the paper lid is more easily adhered to the container, thereby preventing the contents from easily coming out.

In addition, the present invention has an effect of providing a method for easily manufacturing a paper lid using a lid pattern generating means, a turret, a drawing means, and a paper lid forming machine.

1 is a diagram schematically illustrating a paper lid produced by a method for manufacturing a paper lid according to an embodiment of the present invention.
2 is a plan view schematically illustrating an apparatus for manufacturing a paper lid for performing a method for manufacturing a paper lid, according to an embodiment of the present invention.
3 is a front view schematically illustrating an apparatus for manufacturing a paper lid for performing a method for manufacturing a paper lid, according to an embodiment of the present invention.
4 is a diagram schematically illustrating a lid pattern generating means of a paper lid manufacturing apparatus according to an embodiment of the present invention.
5 is a diagram schematically illustrating a drawing means of an apparatus for manufacturing a paper lid according to an embodiment of the present invention.
6 is a diagram schematically illustrating a top plate forming means of an apparatus for manufacturing a paper lid, according to an embodiment of the present invention.
7 is a diagram schematically illustrating a heating means of an apparatus for manufacturing a paper lid, according to an embodiment of the present invention.
8 is a diagram schematically illustrating a first in curl forming means of an apparatus for manufacturing a paper lid, according to an embodiment of the present invention.
9 is a diagram schematically illustrating a second in-curl forming means of an apparatus for manufacturing a paper lid according to an embodiment of the present invention.
10 is a view schematically showing a side wall forming means of a paper lid manufacturing apparatus according to an embodiment of the present invention.
11 is a diagram schematically illustrating a sidewall expansion molding means of an apparatus for manufacturing a paper lid, according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0010] Reference is made to the accompanying drawings, which show by way of illustration specific embodiments in which the present invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein with respect to one embodiment may be implemented in other embodiments without departing from the spirit and scope of the invention.

In addition, it should be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description set forth below is not intended to be taken in a limiting sense, and the scope of the present invention, if properly described, is limited only by the appended claims, along with all scope equivalents as those claimed. Like reference numerals in the drawings refer to the same or similar functions throughout the various aspects.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in order to enable those of ordinary skill in the art to easily practice the present invention.

1 is a diagram schematically illustrating a paper lid 100 produced by a method for manufacturing a paper lid according to an embodiment of the present invention.

Referring to FIG. 1 , the paper lid 100 produced by the method for manufacturing the paper lid of the present invention may have a top plate 110 and a sidewall 120 installed downwardly on the edge of the top plate 110 . At this time, a portion located at the upper portion of the container is referred to as the top plate 110 with reference to FIG. 1 , and the portion installed downwardly on the edge of the top plate 110 is referred to as the side wall 120 . Here, wrinkles may be formed on the sidewall 120 .

In addition, the paper lid 100 may have a receiving groove 101 accommodating the upper edge of the container on the edge of the top plate 110 . At this time, the shape of the receiving groove 101 may be changed to correspond to the container in which the paper lid 100 is used. For example, in the current figure 1, the corner of the container is a rounded shape, and the receiving groove 101 is a shape corresponding to this, but in the case of a square shape with the corner of the container, the shape of the receiving groove 101 is also The square angled edges could be changed to an acceptable shape. At this time, since the receiving groove 101 is generated in the top plate 110 , wrinkles such as the side wall 120 are not formed. Therefore, the paper lid 100 has a higher adhesion to the edge of the container than other paper lids with wrinkles, and thus the sealing property is also higher.

The method for manufacturing such a paper lid includes a top plate region 12 corresponding to the top plate 110 and a sidewall region ( 13) by drawing along the drawing line 11, which is the boundary line between the top plate region 12 and the side wall region 13, of the paper lid base paper having a top plate 110 and a paper lid having a wrinkled side wall 120, and , forming a top plate shape including beading that is a receiving groove in the edge region of the top plate 110 .

Then, forming the in-curl on the side wall 120 of the paper lid and pressing the in-curl to the side wall. Each step will be described in detail later.

Next, a brief structure of a paper lid manufacturing apparatus for performing the paper lid manufacturing method of the present invention will be described with reference to FIGS. 2 and 3 . 2 and 3 are a front view and a plan view schematically illustrating an apparatus for manufacturing a paper lid according to an embodiment of the present invention.

First, referring to FIG. 2 , the paper lid manufacturing apparatus according to an embodiment of the present invention includes a turret 400 in which the lid receiver 410 is coupled to at least one such that the lid holding hole is in a horizontal direction and rotates intermittently. can

At this time, the lid receiver 410, referring to FIG. 5, has a lid holding hole corresponding to the drawing line 11 that is a boundary line between the top plate region 12 and the side wall region 13 of the paper lid, and inside the lid holding hole. It may include a lower mold 411 formed and moved back and forth inside the lid holding hole, having the shape of the top plate 110 , and having beading grooves 411-1 corresponding to the receiving grooves 101 in the rim region. Here, the lower mold 411 of the lid receiver 410 may be capable of moving forward and backward, and the beading groove 411-1 may be created in a different shape according to the needs of the user, like the receiving groove 101 . . For example, if the receiving groove 101 is elliptical, the beading groove 411-1 may also be formed in an elliptical shape.

Here, the drawing means 300 punches the incoming paper stock 10 to generate a paper lid stock, and draws the paper lid stock into the lid holding hole of the lid receiver 410 along the drawing line to prevent the top plate and wrinkles. Draw with a paper lid having formed sidewalls.

In addition, referring to FIG. 3 , the apparatus for manufacturing the paper lid 100 according to an embodiment of the present invention is provided on the top plate 110 on the paper stock 10 supplied in the form of a strip having a certain width. A lid pattern generating means 200 for forming a sidewall region including pleat patterns extending outwardly from the top plate region may be included outside the corresponding top plate region. At this time, the lid pattern generating means 200 is not an essential configuration in the present invention, and the top plate region and the sidewall region are generated from another device in which the base paper 10 has a configuration similar to the lid pattern generating means 200 , It can be introduced into an apparatus for manufacturing the paper lid 100 of the present invention.

In addition, the paper base 10 is pressed into the lid holding hole of the lid receiver 410 along the drawing line 11 with the first upper mold having a flat shape to form the top plate 110 and the side wall 120 with wrinkles. The branch may include a drawing means 300 for drawing with a paper lid.

Here, the base paper 10 may be supplied from a paper roll rolled in a circle, and the base paper 10 using a predetermined device so that the lid pattern generating means 200 and the drawing means 300 operate horizontally. may be supplied in a vertical direction, but is not limited thereto, and is drawn into the drawing means 300 in a state in which the paper base 10 punched in a circle by the separately arranged lid pattern generating means 200 and the punching means is generated. it could be and it could be

Detailed structures of the lid pattern generating means 200 and the drawing means 300 will be described in detail later.

In addition, in the apparatus for manufacturing a paper lid according to an embodiment of the present invention, a second upper mold 511 symmetrical to the lower mold 411 of the lid receiver 410 is formed, and a drawn paper lid is inserted into the lid receiver ( The top plate forming means 510 for molding the shape of the top plate 110 by pressing into the lid holding hole of 410 and forming a beading that is a receiving groove in the edge region of the top plate 110, the lid holding of the lid receiver 410 An in-curl groove is formed in the area corresponding to the line extending from the inner circumferential surface of the hole, so that the lid receiver 410 into which the top plate-formed paper lid is drawn is in close contact. The in-curl forming means for forming the in-curl on the side wall 120 by being drawn into the in-curl groove and the in-curl forming paper lid move into the lid holding hole of the lid receiver 410 to which the in-curl is pressed to the side wall 120 . A paper lid forming machine 500 comprising a forming means 560 may be included.

Each component of the paper lid forming machine 500 is designed to be capable of moving forward and backward at a certain position, ie, at each forming station. At this time, the predetermined position may be each position at which the lid receiver 410 included in the intermittently rotating turret 400 stops. As an example, referring to FIG. 3 , each component of the paper lid forming machine 500 may be arranged in a cylindrical shape with respect to the turret 400 .

The detailed structure of each component of the paper lid forming machine 500 will be described in detail later.

Next, a method for manufacturing a paper lid according to an embodiment of the present invention will be described as follows.

First, a lid pattern creation step of forming a sidewall region including wrinkle patterns extending outward from the top plate region on the outside of the top plate region corresponding to the top plate on the paper stock supplied in the form of a band having a certain width may be performed. there is.

In this case, the lid pattern generation may be performed using the lid pattern generating means 200 .

4 is a diagram schematically illustrating a lid pattern generating means 200 of a paper lid manufacturing apparatus according to an embodiment of the present invention.

Referring to FIG. 4 , the base paper 10 passes through the inside of the lid pattern generating means 200 in the form of a band having a constant width. In this case, the lid pattern generating means 200 forms a sidewall region 13 including pleat patterns extending outwardly from the top plate area 12 on the outside of the top plate area 12, wherein the pleat patterns may be in a radial form. However, the present invention is not limited thereto. In this case, a boundary line between the top plate region 12 and the sidewall region 13 is referred to as a drawing line 11 .

Next, in the base paper on which the lid pattern is created, the edge of the sidewall region is punched to generate the paper lid base paper, and the paper having the top plate and the wrinkled sidewall using the drawing line that is the boundary line between the top plate region and the sidewall region in the paper lid base paper You can perform the drawing step of drawing with the lid.

In this case, punching and drawing may be performed through the drawing means 300 .

5 is a diagram schematically illustrating a drawing means 300 of an apparatus for manufacturing a paper lid according to an embodiment of the present invention.

Referring to FIG. 5 , the drawing means 300 may include a support plate 301 , a punching body 302 , and a drawing body 303 positioned inside the punching body 302 .

First, referring to FIG. 5A , the support plate 301 has an outer rim larger than the rim of the sidewall region 13 , has a plate hole corresponding to the drawing line 11 , and includes a punching body 302 and a lid It may be located between the receptors 410 . The punching body 302 has a hole corresponding to the drawing line 11 and an outer edge corresponding to the edge of the sidewall region 13 , and the drawing body 303 is located in the hole of the punching body 302 and is drawn It may have a border corresponding to the line 11 .

In this state, referring to FIG. 5B , the paper base 10 is inserted between the punching body 302 and the drawing body 303 and the support plate 301 , and is vertically punched and drawn horizontally. direction can be drawn in. At this time, by the intermittent rotation operation of the turret 400, the lid receiver 410 to which the paper lid is not drawn is located at a position corresponding to the drawing means 300, that is, at the drawing station, so that the punching body 302 and the drawing body ( In a state in which the central axis of the 303) is horizontally aligned so that the central axis coincides with the lid receiver 410, the punching body 302 advances and presses the paper base 10 with a lid pattern on the support plate 301. By punching in a plate shape corresponding to the edge of the sidewall region 13 , the paper lid base paper is generated, and the drawing body 303 advances to insert the paper lid base paper into the inside of the lid holding hole along the drawing line 11 . Referring to FIG. 5C , the top plate region 12 is pressed against the lower mold 411 , thereby drawing the top plate 110 and a paper lid having a wrinkled sidewall 120 . At this time, the longitudinal cross-section of the drawing body 303 pressed to the lower mold 411 may be formed to be flat, and accordingly, the top plate of the drawn paper lid may maintain a flat state.

Here, in addition to the advance of the drawing body 303, the lid receptor 410 may also advance to press the paper lid base.

In this case, the drawing means 300 does not necessarily include both the punching body 302 and the drawing body 303 , and may be a form including only the drawing body 303 . For example, from the outside of the apparatus of the present invention, the lid pattern generating means 200 and the punching means performing the roles of the punching body 302 are separately provided to generate a paper lid base paper, and then include only the drawing body 303 . The paper lid is drawn using the drawing means 300 that to create a paper lid base paper, and thereafter, the paper lid may be drawn using the drawing means 300 including only the drawing body 303 .

In addition, the top plate forming means 510 may be integrated with the drawing means 300 . That is, the drawing means 300 serves as a function of the top plate forming means 510 and simultaneously performs the functions of the drawing means 300 and the top plate forming means 510 , or, conversely, the top plate forming means 510 is the drawing means 300 . The functions of the top plate forming means 510 and the drawing means 300 may be simultaneously performed.

Next, a paper lid forming step of forming the shape of the top plate from the drawn paper lid and at the same time forming a beading that is a receiving groove in the edge area of the top plate, forming an in-curl on the side wall, and pressing the in-curl on the side wall to form the side wall can be performed.

In this case, the molding of the top plate may be performed through the top plate molding means 510 .

6 is a diagram schematically illustrating a top plate forming means 510 of an apparatus for manufacturing a paper lid according to an embodiment of the present invention.

Referring to FIG. 6A , the top plate forming means 510 may include a second upper mold 511 symmetrical to the lower mold 411 of the lid receiver 410 . That is, the second upper mold 511 may have a beading protrusion 511-1 corresponding to the beading groove of the lower mold 411 .

In addition, the top plate forming means 510 may further include a heater 512 for performing heat treatment to maintain the formability of the top plate-formed paper lid.

Referring to FIG. 6B , the lid receiver 410 into which the drawn paper lid is inserted is located at a position corresponding to the top plate forming means 510 by the intermittent rotation operation of the turret 400 , that is, at the top plate forming station. By positioning, in a state in which the central axis of the top plate forming means 510 is horizontally aligned so that the central axis coincides with the lid receiver 410, the second upper mold 511 of the top plate forming means 510 moves forward and the lower mold ( 411), and the receiving groove 101 area on the paper lid having the top plate 110 and the side wall 120 by the beading protrusion 511-1 and the beading groove 411-1, that is, of the top plate. A paper lid in which beading is formed may be formed in the edge region.

And, through the heat treatment by the heater 512, it is possible to maintain the formability of the entire paper lid when the beaded paper lid is formed. In this case, the heater 512 may receive heat from a heat source and transfer heat to the second upper mold 511 , but is not limited thereto.

Referring to (c) of FIG. 6 , the shape of the paper lid on which the beading is formed by the top plate forming means 510 can be confirmed. In this case, the lower mold 411 and the second upper mold 511 may form an arbitrary shape (in the case of FIG. 6 , a protrusion protruding from the center of the top plate region 12 ) on the top plate region 12 . As an example, the top plate region 12 may form the top plate 110 having a concave shape instead of a convex shape as shown in FIG. 6 . However, the shape of the top plate in the present invention is not limited thereto, and the shape of the top plate may be formed in various shapes. In addition, the top plate shape can also be formed in a flat shape.

In addition, the in curl molding includes a first in curl molding in which the first in curl is formed on the side wall by allowing the end of the side wall of the paper lid to enter into the first in curl groove, and a method in which the end of the first in curl is further introduced into the lid holding hole It may include a second in-curl forming such that the second in-curl is formed.

In addition, the in-curl forming means may further include a first heating for applying a first heat treatment to the sidewall and a second heating for applying a second heat treatment to the sidewall.

At this time, the first heating may be performed by the heating means (520).

7 is a diagram schematically illustrating a heating means 520 of an apparatus for manufacturing a paper lid, according to an embodiment of the present invention.

The paper lid molding machine 500 may further include a heating means 520 for heating the sidewall by injecting high-temperature air into the lid holding hole of the lid holder 410 into which the beaded paper lid is inserted.

Referring to (a) of FIG. 7 , the heating means 520 includes a first body 521 and a first body 521 having a smaller outer rim than the top plate 110 and including a heating nozzle for injecting high-temperature air. ) has an outer rim that is larger than the outer rim and smaller than the top plate 110, and when the heating means 520 is maximally drawn into the inside of the lid holding hole, it is spaced apart from the inner side of the lid holding hole and faces the inner side of the lid holding hole It may include a second body 522 having an air outlet 522-1 formed in the direction. In this case, the diameter of the air outlet 522-1 of the second body 522 may be smaller than the predetermined interval. In addition, in (a) of FIG. 7 , the heating means 520 is in a reversed state, and in this case, the second body 522 blocks the heating nozzle of the first body 521 to prevent injection of high-temperature air.

Referring to Figure 7 (b), the lid receiver 410 to which the beaded paper lid is inserted is a position corresponding to the heating means 520 by the intermittent rotation operation of the turret 400, that is, the first heating In a state in which the central axis of the heating means 520 is horizontally aligned so that the central axis coincides with the lid receiver 410 by being located in the station, the first body 521 is fixed when the heating means 520 moves forward. only the second body 522 advances and opens the heating nozzle of the first body 521 to inject high-temperature air, and the injected high-temperature air passes through the air outlet 522-1 of the second body 522 Through this, it is possible to reach the inner side of the lid holding hole to heat the side wall of the paper lid.

Referring to (c) of FIG. 7 , the inner side of the paper lid heated by the heating means 520 can be seen.

In addition, the first in-curl molding may be performed by the first in-curl molding means 530 .

8 is a diagram schematically illustrating a first in curl forming means 530 of an apparatus for manufacturing a paper lid according to an embodiment of the present invention.

Referring to (a) of FIG. 8 , in the first in curl molding means 530 , a first in curl groove 531 through which the end of the side wall of the heated paper lid enters is formed, and the first in curl groove 531 is formed. has a first distance adjusting unit 532 positioned in the lid receiver 410 to adjust the distance of the forward movement of the lower mold 411 when the end of the side wall is drawn in, and the end of the side wall is a first incal groove ( 531), the end of the sidewall exceeds the first incurl groove 531, so that the first incurl does not reach the inside of the lid holding hole. (533).

Referring to (b) of FIG. 8 , a position corresponding to the first in-curl forming means 530 by the intermittent rotation operation of the turret 400 of the lid receiver 410 into which the inner side heated paper lid is drawn, that is, , in a state in which the central axis of the first in curl forming means 530 is horizontally aligned so that the central axis of the lid receiver 410 and the central axis coincides with the central axis by being located in the first in curl forming station, the first in curl forming means 530 and the lower mold 411 may advance to a position where the first distance adjusting unit 532 and the lower mold 411 come into contact with each other, so that the end of the sidewall may be introduced into the first incurl groove 531 .

Referring to (c) of FIG. 8 , at this time, the first incurl is generated at the end of the sidewall without being separated from the first incurl groove 531 by the separation preventing part 533, so that the first incurl is formed. A closed paper lid may be formed.

That is, in the first in curl molding, when the end of the side wall is drawn into the first in curl groove, the first in curl groove through which the end of the side wall of the heated paper lid is drawn in is formed, and includes a lower mold having the shape of a top plate The end of the side wall is formed by the first in-curl molding means having a first distance adjusting part positioned in the lid receiver to adjust the distance of the forward movement of the lower mold, and a separation preventing part positioned between the first in curl groove and the lid holding hole. It may be performed so that the first in-curl does not reach the inside of the lid holding hole corresponding to the drawing line beyond the first in-curl groove.

In addition, the second in-curl molding may be performed by the second in-curl molding means 550 .

9 is a diagram schematically illustrating a second in-curl forming means 550 of an apparatus for manufacturing a paper lid according to an embodiment of the present invention.

The paper lid forming machine 500 may further include an additional heating unit 540 and a second in curl forming unit 550 . In this case, the paper lid on which the first incurl is formed is a position corresponding to the additional heating means 540 by the intermittent rotation operation of the turret 400 in which the lid receiver 410 into which the paper lid on which the first incurl is formed is retracted. That is, in a state in which the central axis of the additional heating means 540 is horizontally aligned so that the central axis coincides with the lid receiver 410 by being located in the second heating station, additional heating having the same structure as the heating means 520 It may be formed into a paper lid (not shown) that is further heated by means 540 .

Referring to (a) of FIG. 9 , the second in-curl molding means 550 includes the separation preventing part 533 from the first in-curl molding means 530 and the second distance adjusting part 552 is the first in-curl molding. Compared to the first distance adjusting unit 532 of the means 530 , it has a structure that is less drawn into the lid receiver 410 .

Here, the second in curl groove 551 of the second in curl molding means 550 may be the same as the first in curl groove 531 of the first in curl molding means 530 , or may have a different structure as necessary. At this time, the lid receiver 410 into which the additionally heated paper lid is introduced is positioned at a position corresponding to the second in curl molding means 550 by the intermittent rotation operation of the turret 400, that is, in the second in curl molding station. 2 In a state in which the central axis of the in curl molding means 550 is horizontally aligned so that the lid receiver 410 and the central axis coincide with each other, the second in curl molding means 550 and the lower mold 411 are connected to the second distance adjusting unit ( 552) and the lower mold 411 may each advance to the abutting position, and thus the end of the side wall may be drawn into the second incurl groove 551, and thus a paper lid in which the second incurl is molded is formed. can Here, since the paper lid on which the second in-curl is formed is a paper lid on which the first and second in-curls are formed, this is the 'in-curl-formed paper lid' by the in-curl molding means including the first in-curl molding means and the second in-curl molding means. It can be seen as the same as 'paper lid'.

That is, in the second incurl molding, the second distance adjusting unit is formed in the first distance adjusting unit of the first incurl forming unit by the second incurl forming unit having a second distance adjusting unit in which the separation preventing unit is excluded from the first in curling forming unit. It can be carried out with less retraction into the lid receptor compared to that.

Here, the number and order of the in curl forming means and the heating means are not limited to the above examples, and of course, the number and order can be freely changed according to the needs of the user. For example, by changing the order of heating and incurling, incurling may be performed first and then heating may be performed, and the configuration may be simplified by providing only one heating means and one incurling means.

For example, the in-curl forming means heat-treats the sidewall 120 through the first heating means, and then allows the first in-curl to be formed through the first in-curl forming means 530, and the sidewall ( 120) is heat-treated, and then the second in-curl is formed through the second in-curl forming means 550 or the first in-curl is formed through the first in-curl forming means 530, and then through the first heating means. The sidewall may be heat-treated, the second in-curl may be formed through the second in-curl forming means 550 , and then the sidewall may be heat-treated through the second heating means.

In addition, the in-curl forming means may further include a heating means for heat-treating the sidewall 120 before forming the in-curl or heat-treating the sidewall 120 after forming the in-curl.

In addition, the sidewall forming may be performed by the sidewall forming means 560 .

10 is a diagram schematically illustrating a sidewall forming means 560 of an apparatus for manufacturing a paper lid, according to an embodiment of the present invention.

Referring to (a) of FIG. 10 , the sidewall forming means 560 is capable of moving forward while rotating the sidewall forming means 560 with respect to a central axis and includes a first driving force transmitting unit 561 having a driving force transmitting groove; The second driving force transmitting unit 562 accommodated in the driving force transmitting groove of the first driving force transmitting unit 561 and connected to the second driving force transmitting unit 562 and having an outer circumference smaller than the circumference of the lower mold 411 portion 563 . Here, the first driving force transmitting unit 561 may move forward and backward, and the second driving force transmitting unit 562 may rise and fall according to the forward and backward movement of the first driving force transmitting unit 561 . The side contact portion 563 connected to the second driving force transmitting unit 562 may also move according to the rising and falling of the second driving force transmitting unit 562 , and the perimeter of the side contacting unit 563 is of the lid receiver 410 . It may be smaller than the circumference of the lid holding hole.

Referring to (b) of FIG. 10 , the position corresponding to the sidewall forming means 560 by the intermittent rotation operation of the turret 400 , that is, the sidewall forming of the lid receiver 410 , into which the paper lid with the incurl is formed, is inserted. In a state in which the central axis of the sidewall forming means 560 is horizontally aligned so that the central axis coincides with the lid receiver 410 by being located in the station, the sidewall forming means 560 advances to at least a part of the side adhesion part 563 may be introduced into the lid holding hole. At this time, when the first driving force transmitting unit 561 moves forward, the second driving force transmitting unit 562 accommodated in the driving force transmitting groove rises, and accordingly, the side contact part 563 also rises to increase the side contact part 563 . is moved upwardly, and the side attachment part 563 may be in close contact with the inner side of the lid holding hole to adhere some of the incurled portion of the paper lid in which the incurl is formed to the side of the lid holding hole. Here, by rotating the side adhesion part 563 while maintaining a state in close contact with the inner side surface of the lid holding hole, the entire incurled portion of the paper lid in which the in curl is formed may be pressed against the side surface of the lid holding hole. In this case, the form in which the entire incurled portion is compressed on the side surface of the lid holding hole is not limited to a flat form, and may be in various forms such as a form in which the incurl is formed inside the paper lid, a form in which the incurl is formed outside the paper lid, and the like.

In addition, the lid manufacturing method according to an embodiment of the present invention may further perform a sidewall expansion molding step to facilitate lamination of the paper lid.

In this case, the sidewall expansion molding may be performed through the sidewall expansion molding means 570 .

That is, in the paper lid manufacturing apparatus, in the paper lid in which the in-curl is pressed against the side wall 120 , the extended region, which is a predetermined region from the end of the side wall, is pressed in a direction toward the side of the lid holding hole, so that the extended region is the top plate. It may further include a sidewall expansion molding means 570 to have a wider circumference than (110).

Referring to (a) of FIG. 11 , the sidewall expansion molding means 570 has a perimeter wider than the perimeter of the inner surface of the lid holding hole and corresponds to a line extending from the inner surface of the lid holding hole of the lid receiver 410 The length of the first perimeter from the length of the expansion groove 571 formed in the area where the expansion groove 571 is formed, the pressure transmission part 572 capable of advancing with a tapered structure, and the first circumference corresponding to the expansion area and the extended groove It corresponds to the length of the sum of the excluding the length and the length of a part of the inner surface of the lid holding hole and has a second perimeter having a perimeter smaller than the first perimeter, so that the lid receiver 410 into which the paper lid is inserted is in close contact with the lower part When the end of the side wall of the paper lid is drawn into the expansion groove 571 by the forward movement of the mold 411 and the pressure transmission unit 572 advances, it is connected to the pressure transmission unit 572 to form the expansion area. By pressing in the direction toward the side of the lid holding hole and pressing the end of the side wall to the inner surface and the expansion groove 571 of the lid holding hole, the extended area of the side wall has a wider perimeter than the top plate 110 An extension 573 may be included.

Referring to (b) of FIG. 11 , the position corresponding to the sidewall expansion molding means 570 by the intermittent rotation operation of the turret 400 is the lid receiver 410 with the paper lid in which the incurl is pressed against the sidewall and the paper lid is drawn in, that is, , with the central axis of the sidewall expansion molding means 570 aligned horizontally so that the central axis coincides with the lid receiver 410 by being located in the sidewall expansion molding station, the sidewall expansion molding means 570 advances and the lower mold ( 411) advances and the compressed portion of the paper lid is located in the expanded groove 571, the expanded portion 573 is expanded by the advancement of the pressure transmitting portion 572, and accordingly, among the compressed portions of the paper lid At least a portion is pressed against the side of the expansion groove 571 .

Referring to (c) of FIG. 11 , a portion of the lower end of the compressed portion of the paper lid has a wider circumference than before, so that it can be easily loaded when the paper lid is vertically loaded.

Here, even if there is no sidewall forming means 560 , the function of the sidewall forming means 560 may be performed through the sidewall expansion forming means 570 . That is, the sidewall expansion molding means 570 can press the in-curl to the sidewall and at the same time make the circumference of a portion of the lower end of the paper lid wider than before.

In addition, in order to discharge the paper lid 100 that has been manufactured, the lid receiver 410 may be connected to an air injection pipe for spraying air to separate the paper lid from the lower mold 411 to the lower mold 411 . there is.

Here, by discharging air from the air inlet pipe, the paper lid 100 is separated from the lid receiver 410, and the discharging means 580 for discharging the separated paper lid 100 to the outside of the paper lid molding machine 500 is included. can do. In this case, the discharge means 580 may include a cooler for removing residual heat and the like remaining in the paper container 100 . And, in order to load the completed paper lid 100, it may further include a loading means 600 connected to the discharging means 580 and for loading the paper lid moved from the discharging means 580 .

In addition, the paper lid manufacturing apparatus may further include a curling forming means. In the curling forming means, a curling groove is formed in a region corresponding to the line extending from the inner circumferential surface of the lid holding hole of the lid receiver 410, and the lid receiver 410 in which the paper lid is pressed against the sidewall 120 is in close contact. and the end of the side wall 120 of the paper lid is drawn into the curling groove by the forward movement of the lower mold 411 , so that curling is formed on the side wall 120 .

Here, the curling forming means may further include a curling heating means for applying heat treatment to the sidewall 120 so that curling is easily formed. In addition, the curling molding means is formed with a curling groove into which the end of the side wall 120 of the curled heated paper lid is drawn, and when the end of the side wall 12 is drawn into the curling groove, it is located in the lid receiver 410 and is located in the lower mold When the curling distance adjusting unit that controls the distance of the forward movement of 411 and the end of the side wall 120 enter the curling groove, the end of the side wall 120 goes beyond the curling groove and the curling does not reach the inside of the lid holding hole It may have a separation preventing part positioned between the curling groove and the lid holding hole to prevent it.

At this time, the shape of the curling formed on the side wall 120 may be a shape rolled inside or outside the paper cup, but is not limited thereto, and the number and order of the curling molding means and the curling heating means can be freely adjusted similarly to the in curl molding. It will be possible.

In the above, the present invention has been described with specific matters such as specific components and limited embodiments and drawings, but these are provided to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , various modifications and variations can be devised from these descriptions by those of ordinary skill in the art to which the present invention pertains.

Accordingly, the spirit of the present invention should not be limited to the above-described embodiments, and not only the claims described below, but also all modifications equivalently or equivalently to the claims described below belong to the scope of the spirit of the present invention. will do it

100: paper lid 101: receiving groove
110: top plate 120: side wall
10: Base paper 11: Drawing line
12: top plate area 13: side wall area
200: lid pattern generating means 300: drawing means
301: support plate 302: punching body
303: drawing body 400: turret
410: lid receptor 411: lower mold
411-1: beading groove 500: paper lid molding machine
510: top plate forming means 511: upper mold
511-1: beading protrusion 512: heater
520: heating means 521: first body
522: second body 522-1: air outlet
530: first in-curl forming means 531: first in-curl groove
532: distance control unit 533: escape prevention unit
540: additional heating means 550: second in curl shaping means
551: second incline groove 552: second distance adjusting unit
560: side wall forming means 561: first driving force transmission unit
562: second driving force transmission unit 563: side contact unit
570: side wall expansion molding means 571: expanded groove
572: pressure transmitting part 573: expanding part
580: discharging means 600: loading means

Claims (12)

In the method for manufacturing a paper lid having a top plate and a side wall installed downwardly on the edge of the top plate, the edge of the top plate having a receiving groove for accommodating the upper edge of the container,
(a) a drawing line that is a boundary line between the top plate region and the side wall region of a paper lid base paper having a top plate region corresponding to the top plate and a side wall region on the outside of the top plate region in which wrinkle patterns extending outward from the top plate region are formed forming a top plate shape into a paper lid having the top plate and the wrinkled sidewall by drawing along the top plate, and forming a top plate shape including the beading as the receiving groove in the edge region of the top plate;
(b) forming an in curl on the sidewall of the paper lid; and
(c) pressing the in curl to the sidewall;
including,
The step (c) is performed by a side wall forming means,
The sidewall forming means may include: a first driving force transmitting unit capable of moving forward while rotating the sidewall forming means about a central axis and having a driving force transmitting groove; a second driving force transmitting unit accommodated in the driving force transmitting groove of the first driving force transmitting unit; and a side adhesion part connected to the second driving force transmission part and having an outer perimeter smaller than the perimeter of the lower mold,
When the first driving force transmitting unit moves forward, the second driving force transmitting unit accommodated in the driving force transmitting groove closely adheres the side contact portion to the inner side of the lid holding hole, and the side attaching unit is in close contact with the inner side of the lid holding hole A method for manufacturing a paper lid in which at least a portion of the in-curl is pressed against the side wall by an in-curl forming means by rotating while maintaining the in-curl. According to claim 1,
The step (a) is,
The top plate region corresponding to the top plate and a sidewall region on the outside of the top plate region in which wrinkle patterns extending outwardly from the top plate region are formed Corresponding to a drawing line that is a boundary line between the top plate region and the sidewall region A lid container comprising a lid holding hole, which is formed inside the lid holding hole, moves back and forth in the lid holding hole, has the shape of the top plate, and has a lower mold in which a beading groove corresponding to the receiving groove is formed in the rim region. At least one coupled turret is used so that the lid holding hole is in a horizontal direction and rotates intermittently,
a paper lid forming means draws the paper lid base paper into the lid holding hole of the lid container along the drawing line to form a paper lid having the top plate and the wrinkled sidewall, which is symmetrical to the lower mold A method for manufacturing a paper lid comprising pressing the top plate of the paper lid with an upper mold to form a top plate shape on the top plate and a beading that is the receiving groove in an edge region of the top plate. 3. The method of claim 2,
The paper lid forming means is configured to press the paper lid base paper through a drawing means into the lid holding hole of the lid container along the drawing line into a first upper mold having a flat shape to form a paper having the top plate and the sidewall. The top plate shape and the beading are molded by drawing with a lid, and pressing a second upper mold corresponding to the lower mold through a top plate forming means into the upper lid holding hole of the lid receiver into which the drawn paper lid is inserted. How to make a paper lid. 4. The method of claim 3,
The drawing means includes a support plate, a punching body, and a drawing body positioned inside the punching body, wherein the support plate has an outer edge larger than an edge of the sidewall region, has a plate hole corresponding to the drawing line, and the punching Located between the body and the lid receiver, the punching body has a hole corresponding to the drawing line and an outer edge corresponding to the edge of the sidewall region, the drawing body is located in the hole of the punching body and the drawing body A state in which the central axes of the punching body and the drawing body coincide with the lid receiver and horizontally aligned with a border corresponding to the line - In this case, the base paper is the punching body, the drawing body, and the support plate In -, the punching body presses the paper base paper to the support plate by the advancement of the punching body and the drawing body, and punches the paper into a plate shape corresponding to the edge of the side wall area. The top plate region is pressed to the lower mold by the drawing body drawing the paper lid stock paper into the lid holding hole, and drawing with the paper lid having the top plate and the wrinkled sidewall. How to make a paper lid. According to claim 1,
The step (a) is,
A method for manufacturing a paper lid, wherein the paper lid having the top plate shape is heat-treated in order to maintain the moldability of the container lid. According to claim 1,
(a01) a lid pattern generating step of forming the sidewall region on the outside of the top plate region corresponding to the top plate on the paper stock supplied in the form of a band having a constant width; and
(a02) punching an edge of the sidewall region formed on the base paper to generate the base paper for the lid;
Paper lid manufacturing method further comprising a. According to claim 1,
The step (b) is,
The end of the sidewall is incurled to form a first incurl on the sidewall,
A method of manufacturing a paper lid for forming an incurl on the sidewall by incurling an end of the first incurl to form a second incurl on the sidewall. 6. The method of claim 5,
The step (b) is,
performing a first heat treatment on the sidewall on which the first incurl is formed, and a second heat treatment on the sidewall on which the second incurl is formed;
A method for manufacturing a paper lid, wherein the sidewall is subjected to a first heat treatment and then the first incurl is formed on the sidewall, the sidewall on which the first incurl is formed is subjected to a second heat treatment, and then the second incurl is formed on the sidewall. According to claim 1,
The step (b) is,
A method of manufacturing a paper lid for heat-treating the sidewall before forming the in-curl, or heat-treating the sidewall after forming the in-curl. According to claim 1,
Step (c) is,
A paper lid manufacturing method in which the in-curl is pressed against the sidewall and at the same time, an extended region, which is a predetermined region, from the end of the sidewall is pressed in a direction toward the side of the lid holding hole so that the extended region has a wider perimeter than the top plate . According to claim 1,
(d) pressing the extended area, which is a predetermined area from the end of the side wall of the paper lid, in which the incurl is pressed against the side wall, in a direction toward the side of the lid holding hole, so that the extended area has a wider circumference than the top plate to do;
How to include more. According to claim 1,
(e) forming a curl at the end of the side wall to which the in curl is pressed;
Paper lid manufacturing method further comprising a.

Images