JP4355809B2 - Paper lid forming device - Google Patents

Description

  The present invention relates to a paper lid molding apparatus, and more particularly to a paper lid molding apparatus for molding apparatus structure for enabling mass production in accordance with the structural characteristics of a paper lid molded using a paper material.

  In general, with the development of the industrial economy, as human life cultures become more complex and diversified, various forms of fast food that can save time have been commercialized. Such fast foods are generally disposable containers. Are sold in a housed state.

  Such disposable containers are used in a variety of ways, from those that contain food and drink such as cup noodles, to those that contain food and drink such as water and take-out coffee. Use a lid to prevent the contents from spilling.

  On the other hand, lids used for such disposable containers are mainly made of plastic materials. Such plastic materials are easily deformed to the desired shape by applying heat and pressure, and if the temperature is lowered, the molded shape can be maintained for a long time. There is an advantage that can be molded and used.

  However, when disposing of such a general disposable plastic lid, there is a problem that not only the disposal is difficult due to the characteristics of the plastic that does not decay, but also the environment has a serious adverse effect.

  In other words, the plastic materials used are materials that are difficult to decompose naturally even after several hundred years, and they are buried in the ground and discarded without any special treatment method, which extremely pollutes the natural environment. During incineration, environmental hormones and various carcinogens that are harmful to the human body as well as air pollution may be discharged.

  By the way, in order to solve such environmental problems, in recent years, there has been an attempt to make a lid with a thick white paperboard (pulp material) which is not a plastic material but easy to dispose of. However, such paperboard materials are expensive because raw materials must be imported, and production costs increase. In addition, due to the characteristics of paper, there is a technical problem that it is difficult to form and it is difficult to maintain the shape due to strength reduction because of the use of a forming method in which the edges are separately formed into a circular shape and combined.

  In addition, conventional paper lid molding requires many work steps for strength reinforcement and molding work due to the characteristics of the paper material, which complicates the structure of the molding machine for automation. There was a problem that the production cost was expensive.

  The present invention has been made in view of the above-described problems of conventional paper lid forming apparatuses, and an object of the present invention is to construct an apparatus for producing a large number of container lids with paper material. It is an object of the present invention to provide a new and improved paper lid forming apparatus capable of reducing the unit production cost of products by simplifying the apparatus.

  In order to solve the above problems, according to a first aspect of the present invention, on one side of the apparatus, a supply base for stacking and storing in order to sequentially supply a plurality of lid base papers cut in advance is provided. A plurality of base paper inserts are formed at regular intervals along the periphery of the disc table whose rotation is stopped by a predetermined angle for the gradual forming of the lid base paper supplied from A mold lifting base is mounted so that it can be moved up and down. On the mold lifting base, a thermoforming mold, a removable groove forming mold and a reinforcing groove forming mold for forming the base paper inserted into each insertion portion are respectively provided. A provided paper lid forming apparatus is provided.

  Further, the paper lid forming apparatus includes a flange portion that is bent and extended in the vertical direction along the peripheral edge of the central main body portion of the base paper made of paper material, and a flange portion that is formed at regular intervals on the flange portion, In the paper lid forming device for forming a detachable groove formed along a part of the inner corner where the flange portion and the main body portion meet, a supply for supplying a plurality of base papers to one side of the device and stacking and storing them A base and a plurality of original inserts are formed at regular intervals along the periphery, and a disk table that is repeatedly rotated and stopped by a predetermined angle, and mounted on the lower part of the disk table, can be moved up and down A mold lifting platform, and the mold lifting platform can include a thermoforming mold for molding the inserted cover base paper, a removable groove forming mold, and a reinforcing groove forming mold.

  A table support for preventing the disk table from moving during the molding operation is provided on the mold lifting platform, and an insertion hole into which the table support can be inserted is provided at the corresponding position of the disk table. Can be formed. In other words, a table support is formed on the mold lift to prevent the disk table from moving during the molding operation, and the table support is inserted at a position corresponding to the table support on the disk table. Possible insertion holes can be formed.

  In the detachable groove forming mold, a groove forming projection for forming the detachable groove at the inner corner of the base paper by eccentric rotation can be formed along the upper end of the outer peripheral surface. That is, the detachable groove forming mold may be provided with a groove forming projection for forming a detachable groove at the inner corner of the lid base paper along the upper end of the outer peripheral surface.

  As described above, the paper lid forming apparatus of the present invention simplifies the paper lid molding process and facilitates the molding by the continuous production process, and produces the paper lid by mass production of paper lid products. Unit price can be reduced.

  In addition, since the paper lid formed by the paper lid forming apparatus of the present invention is made of a single paper base paper, it can be produced by an automatic process, and a more stable coupling is maintained when coupling with the cup container. At the same time, there is an advantage of having excellent compatibility by changing the size.

  Hereinafter, preferred embodiments of a paper lid forming device according to the present invention will be described in detail with reference to the accompanying drawings. In the present specification and drawings, components having substantially the same functional configuration are denoted by the same reference numerals, and redundant description is omitted.

(First embodiment)
FIG. 1 is a perspective view showing an appearance of a paper lid forming apparatus in the first embodiment, FIG. 2 is a perspective view of the paper lid forming apparatus in the first embodiment, and FIG. 3 is a paper lid forming apparatus in the first embodiment. FIG. 4 is a side view of the paper lid forming apparatus in the first embodiment, FIG. 5A is a cross-sectional view showing the flange portion forming stage of the paper lid by the paper lid forming apparatus in the first embodiment, and FIG. FIG. 5C is a cross-sectional view showing a step of forming a paper cover reinforcing groove, and FIG. 5C is a cross-sectional view showing a step of forming a paper cover reinforcing groove. The schematic configuration of the paper lid forming apparatus according to the present embodiment will be described below.

  Referring to FIGS. 1 to 4, a supply stand 120 in which the cut base paper 1 is laminated in a plurality of layers is provided on one side of the apparatus, and at a position separated from the supply stand 120 by a predetermined separation, In order to form the supplied lid base paper 1 stepwise, a disc table 100 that repeats rotation and stop by a predetermined angle about a central shaft is installed, and a plurality of disc tables 100 are provided along the edge of the disc table 100. Base paper insertion portions 101 are formed at regular intervals.

  Referring to FIGS. 5A to 5C, the base paper inserting portion 101 is formed with a side wall portion 102 for bending the edge portion and a groove portion 103 formed at the upper end of the side wall portion 102 when the lid base paper 1 is raised. . Further, the upper support mold 117 supports the upper surface of the lid body during molding by the mold.

  And the mold raising / lowering stand 110 is attached to the lower part of the disc table 100 so that raising / lowering is possible to an up-down direction. On the mold lifting platform 110, a thermoforming mold 111, a detachable groove forming mold 112, and a reinforcing groove forming mold 113 for performing stepwise forming of the lid base paper 1 inserted into each insertion portion 101 are respectively cylindrical. Configured.

  In particular, the removable mold 112 has a roulette shape and can be rotated eccentrically, and a groove forming protrusion 112a is provided along the upper end of the outer peripheral surface. The groove forming protrusion 113 is formed on the upper surface of the reinforcing groove forming mold 113. 113a is projected in a circular shape.

  Further, a table support 115 for preventing the disc table 100 from moving during the molding operation is installed on the mold lifting platform 110, and the disc table 100 is positioned at a corresponding position. , An insertion hole 105 is formed.

  On the other hand, the configuration of the drive unit for rotating and raising / lowering the disk table 100 and the mold lifting / lowering base 110 is a well-known technique applied in various ways to ordinary paper cup forming apparatuses. A description of the technical configuration and operation process of the drive unit that departs from the technical summary will be omitted.

  Hereinafter, a forming process by the operation of the paper lid forming apparatus in this embodiment will be described.

  First, each cover base paper 1 stacked and stored on the supply base 120 has a flat circular shape, and has a main body portion 10 at the center side, and a flange portion 20 that is bent along the periphery of the main body portion 10 is formed. . Here, in order to bend the flange part 20 easily, the flange part 20 is cut so that a plurality of flange parts 21 are cut at regular intervals and a plurality of arc parts are formed along the outer periphery thereof. The

  When the lid base paper 1 in such a cut state is pulled down one by one by the suction port 121 provided in the lower part thereof, and is automatically supplied below the disk table 100 by a pusher (not shown). The mold elevating table 110 moves up and down, and a stepwise forming operation is performed on the cover base paper 1 inserted into the base paper insertion portion 101 of the disk table 100 that stops rotating by a predetermined angle.

  In other words, the lid base paper 1 is transferred from the lower side to the upper side of the insertion part 101 of the disc table 100, so that the peripheral part is bent by the side wall part 102 and transferred to the flange part 20. It will be located in the molding mold 111. Thereafter, the thermoforming mold 111 rises, dissipates heat, and the lid base paper 1 inserted and transferred in a bent state is heated as a whole, so that it is easily molded into a predetermined form in the next stage. So that

  After such a process, when the thermoforming mold 111 is lowered, as a next step, the disk table 100 is rotated by a predetermined angle to reach the detachable groove forming mold 112. Thereafter, roulette processing by eccentric rotation is performed, so that the groove 11 is formed on the outer periphery of the mold and the groove 103 formed in the insertion portion is caused to interact with the detachable groove 11 by the cover base paper 1. In the next stage, the disk table 100 is rotated once again, and here, the reinforcing groove forming mold 113 is raised so as to protrude downward on the main body 10 of the base paper 1. A plurality of circular reinforcing grooves 12 are formed, whereby the strength of the paper cover is reinforced.

  In particular, in the molding process, the respective molding molds 111, 112, and 113 are raised, and the upper support mold 117 supports the upper surface of the base paper when performing the molding operation on the base paper 1. The deformation of the base paper 1 can be prevented.

  On the other hand, in the process in which the respective molding molds 111, 112, 113 are raised and the molding operation is performed, the table support 115 is lifted together and inserted into the insertion hole 105 of the disk table 100. The table is prevented from floating, so that the lid can be molded more accurately.

  FIG. 6 is a perspective view of the paper lid completed in the present embodiment, and FIG. 7 is a cross-sectional view showing the coupling between the paper lid completed in the present embodiment and the cup container. Hereinafter, a forming process by the operation of the paper lid forming apparatus in this embodiment will be described.

  When the operation using the paper lid forming apparatus of the present embodiment is continuously repeated, the produced paper lid is placed on the upper end opening of the cup container 30 to prevent the contents from flowing out and from the outside. Since the curling portion 31 is formed along the periphery of the upper end opening of the cup container 30 to be joined, the curling portion 31 is joined when the paper lid is joined. Is inserted into the detachable groove 11 to maintain a stable coupled state.

  At this time, since the detachable groove 11 is formed at the inner corner of the paper lid, the curling portion 31 at the upper end of the cup container 30 is brought into close contact with the main body portion 10 of the paper lid, and the contact area between them. The lid coupling state due to the increase will be maintained more stably.

  Further, since the flange portion 20 of the paper lid is formed with the flange portions 21 at regular intervals, it has a feature that it can be contracted and expanded.

  Therefore, even when the opening diameter of the curling portion 31 is slightly different in the process of coupling the lid body 1 to the cup container 30, the size of the flange portion 20 is enlarged or reduced according to the size. It can be seen that compatibility improves.

  The preferred embodiment of the paper lid forming apparatus according to the present invention has been described above with reference to the accompanying drawings, but the present invention is not limited to such an example. It will be obvious to those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea described in the claims, and these are naturally within the technical scope of the present invention. It is understood that it belongs.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a paper lid forming apparatus that can simplify the apparatus for mass-producing container lids with paper material and reduce the production unit price of the product.

It is a perspective view which shows the external appearance of the paper cover molding apparatus in 1st Embodiment. It is a perspective view of the paper lid forming device in a 1st embodiment. It is a top view of the paper lid forming device in a 1st embodiment. It is a side view of the paper lid forming device in a 1st embodiment. It is sectional drawing which shows the flange part shaping | molding step of the paper lid by the paper lid molding apparatus in 1st Embodiment. It is sectional drawing which shows the attachment / detachment groove | channel shaping | molding step of the paper lid by the paper lid molding apparatus in 1st Embodiment. It is sectional drawing which shows the reinforcement groove | channel shaping | molding step of the paper lid by the paper lid molding apparatus in 1st Embodiment. It is a perspective view of the paper lid completed in 1st Embodiment. It is sectional drawing which shows the coupling | bonding of the paper lid and cup container completed in 1st Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lid base paper 10 Main body part 11 Detachment groove 12 Reinforcement groove 20 Flange part 21 Ridge part 30 Cup container 31 Curling part 100 Disc table 101 Base paper insertion part 102 Side wall part 103 Groove part 105 Insertion hole 110 Molding member raising / lowering base 111 Heating molding member 112 Detachable groove forming member 112a Groove forming protrusion 113 Reinforcing groove forming member 113a Groove forming protrusion 115 Table support 117 Upper support mold 120 Supply stand 121 Adsorption port

Claims (3)

A flange portion that is bent and extended in the vertical direction along the periphery of the central main body portion of the base paper made of paper material;
A flange portion formed at regular intervals on the flange portion;
A detachable groove formed along a part of the inner corner where the flange portion and the main body portion meet,
In the paper lid molding device for molding
On one side of the apparatus includes a supply table that teapot subjected plurality of lid sheet stacked storage,
A disc table in which a plurality of base paper insertion portions are formed at regular intervals along the periphery, and is repeatedly rotated and stopped by a predetermined angle;
A molded member lifting platform mounted on the lower part of the disk table and capable of moving up and down;
With
The lid base paper supplied from the supply base is inserted into the base paper insertion portion,
Said forming member elevating platform has a hot forming member for heating the lid base paper inserted in folded state in the base paper insertion portion, a detachable groove forming member forming the detachable groove, down the center body portion of the cover sheet And a reinforcing groove forming member that forms a reinforcing groove protruding from the paper lid. A table support for preventing the disc table from moving during the molding operation is formed on the molding member lift, and the table support can be inserted at a position corresponding to the table support on the disc table. The paper lid forming apparatus according to claim 1, wherein an insertion hole is formed. The paper lid forming apparatus according to claim 1, wherein the removable groove forming member is provided with a groove forming projection for forming a removable groove at an inner corner of the lid base paper along an upper end of the outer peripheral surface.

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