KR102401634B1 - Pulp molding manufacturing apparatus - Google Patents

Abstract

The present invention relates to a pulp mold molding apparatus, comprising: a lower mold for forming a pulp mold; and an upper mold that is mold-coupled with the lower mold to transfer the mold in an adsorbed state, wherein the lower mold is to be molded The lower mold is formed to correspond to the mold and has micro-dehydration holes formed on the surface thereof, and while it is fixedly provided to the lower mold, a suction force that sucks water from the raw materials supplied to the lower mold and dehydrates it acts inside. a lower chamber to be formed, a supply port provided in the lower chamber between each lower mold to supply raw materials to each lower mold, and the lower chamber and the lower mold are accommodated and fixed therein, while being fixed to the lower mold Provide a pulp mold molding apparatus configured to mold a pulp mold of a certain thickness by directly supplying the raw material to the corresponding lower mold through a supply port around each lower mold, including a mold case that blocks the leakage of the supplied raw material do.

Description

Pulp molding manufacturing apparatus

The present invention relates to a pulp mold forming apparatus, and more particularly, to a pulp mold forming apparatus for forming a mold made of pulp material for storing and storing products for distribution or storage.

In general, a pulp mold is a product having a certain shape manufactured by processes such as dissociation, molding, and drying using paper and pulp as raw materials, and is usually a buffer packaging material such as an egg or fruit and vegetable container, a tray for fruits and vegetables, and a tray for meat and fish , has been used as a port for hair growth.

Unlike the synthetic resin packaging containers, the pulp mold used for packaging has the advantage of being easy to process after use, recyclable, no environmental pollution, and has excellent buffering effect. It is expected that the effect of replacing petrochemical products with cushioning materials for industrial use and packaging materials for industrial products will be great in the future as it does not conflict with the environmental regulations of exporting countries.

On the other hand, it is an eco-friendly product by using waste paper such as corrugated cardboard, newspaper, magazine, flyer, milk carton, and white paper as a raw material. Post-processing such as , disposal, recycling, etc. is easy, and it has excellent buffering properties, which is advantageous for heavy packaging, and it is advantageous for packaging cutting, efficiency and automation.

In the manufacturing method of such a pulp mold, the raw material is added to water to dissociate and disperse, then the pulp liquid is sucked on the surface of the mold or the pulp is attached by natural fall method, and the attached pulp of a certain shape is detached and moved to a dryer for drying. Through the process, the moisture contained in the pulp is dried and manufactured into a product.

Such a conventional pulp mold molding apparatus has been proposed as a 'pulp mold molding system for egg pack production' in Korean Patent Registration No. 10-1757902 (hereinafter referred to as 'prior art document 1').

The pulp mold forming system disclosed in Prior Art Document 1 is a pulp mold forming system for egg pack production including a first forming part, a drying part and a second forming part, the first forming part is vertical in the raw material box. A mold box that only moves up and down, a mold frame attached to the mold box, a screen mesh attached to the upper surface of the mold frame to adsorb pulp and loaded with pulp moldings, and vertically connected to the lower part of the mold box so that the vacuum acts in the direction of gravity. A first mold machine of a vertical up-down method provided with a suction hose and a discharge hose; A suction box, a suction frame attached to the lower surface of the suction box and having a shape corresponding to the mold, and a suction/discharge pipe connected to the suction box are provided. It includes, and when the first mold machine is drawn into or withdrawn from the raw material box, the mold frame is drawn in or drawn out so that the mold frame is lower than the screen mesh, and the drying unit is provided in the drying furnace and the pulp pulp It includes a blower for drying the molding with hot air, a conveyor that passes through a drying furnace, where the pulp molding is seated and transported, and a surface is formed of a wire mesh, and the secondary molding part is dried in a drying unit and passed through a drying furnace to dry with hot air A lower mold on which the completed pulp molding is seated, and a second mold for pressing the pulp molding seated on the lower mold at a high temperature, wherein the second mold performs only pressing in the vertical direction from the vertical position of the lower mold, and a second The mold includes a feeder body equipped with a vacuum rod for vacuum adsorption so that the pulp molded material that has undergone a drying process in the drying furnace is transferred to the lower mold, and a guideline that is a path through which the feeder body is transferred to the lower mold. After passing through the drying furnace and sucking the molded pulp that has been dried by hot air and fixing it, the feeder body moves along the guideline to seat the molded pulp on the lower mold, and the end of the vacuum rod of the feeder body is a jig corresponding to the pocket shape of the pulp molding. It is characterized in that the adsorption position of the pulp molding material is determined at the end of the vacuum rod and transferred to the lower mold.

In this conventional pulp mold molding method, after the first mold machine descends vertically and is immersed in the raw material box, the pulp is attached to the surface of the mold frame in the shape of an egg pack of the first mold machine as it rises. It is molded into a complete egg pack through a drying process.

However, in the conventional pulp mold molding method, the pulp is attached to the mold of the first mold while the first mold is vertically descended into the raw material box and then ascended. There is a problem in that it is not uniformly attached.

That is, the first mold machine is provided with a plurality of mold frames mounted in a square shape. When the first mold machine is raised from the raw material box, the pulp of the raw material box is swept down from the upper surface central part of the first mold machine to the side, so the mold in the center There is a problem in that there is a difference in the thickness of the pulp attached to the mold and the mold on the side, resulting in unevenness.

Republic of Korea Patent Registration No. 10-1757902

Accordingly, the present invention has been devised to solve the problems of the prior art as described above, and the pulp mold is molded by uniformly supplying raw material pulp to each lower mold over the entire area of the lower mold to which the lower mold is mounted. An object of the present invention is to provide a pulp mold molding apparatus capable of maintaining a constant thickness and quality of a pulp mold and improving the marketability of the pulp mold.

A pulp mold molding apparatus according to the present invention for achieving the above object is a pulp mold molding apparatus comprising a lower mold in which a pulp mold is molded, and an upper mold that is mold-coupled to the lower mold and transports the mold in an adsorbed state, The lower mold is formed to correspond to the mold to be molded, while the lower mold 110 having micro-dehydration holes formed on the surface thereof, is fixedly provided to the lower mold, and inside it, among the raw materials supplied to the lower mold, A lower chamber 120 to which a suction force for sucking and dehydrating water is applied, and a mold case 140 in which the lower chamber and the lower mold are accommodated and fixed therein, while blocking the leakage of raw materials supplied to the lower mold. Including, the lower chamber is provided with a plurality of independent unit chambers to which the lower mold frame is mounted in a line on the upper surface is provided to be spaced apart, and a plurality of unit chambers ( A bracket 123 for integrating 120a) is fixed and provided, and the spaced space between each unit chamber 120a is formed as a supply path 121 through which raw materials can flow, and the supply path 121 has The supply port 124 formed in the bracket 123 provided on the upper surface of the lower chamber 120 is provided to communicate with each other, and the bracket 123 covers the supply path 121 between the unit chambers 120a and the plurality of lower parts. The mold frame 110 is formed as a lattice-shaped flat plate having a space to be seated and mounted, and by forming the supply port 124 in the lattice portion of the bracket 123, the supply port around each lower mold frame is removed. It is characterized in that it is configured to form a pulp mold of a certain thickness by directly supplying the raw material to the corresponding lower mold through the mold.

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In addition, the mold case is provided with a double structure, and the outer wall portion surrounding the inner wall portion is formed higher than the inner wall portion in which the lower chamber and the lower mold frame are accommodated, so as to block overflow of the raw material.

According to the pulp mold molding apparatus of the present invention, by forming a supply port through which pulp is supplied for each lower mold between each lower mold over the entire area of the lower mold to which the lower mold is mounted, the raw material pulp for each lower mold through this supply port is uniformly supplied and attached to the lower mold, so that the thickness and quality of the pulp mold can be kept constant and high quality can be improved, and deformation of the pulp mold is prevented, thereby improving the commercial properties of the pulp mold.

1 is a front configuration view of a pulp mold forming apparatus according to the present invention.
2 is a side view of the pulp mold molding apparatus according to the present invention.
3 is a combined configuration diagram showing the lower mold of the pulp mold molding apparatus according to the present invention.
4 is an isolated configuration diagram of the lower mold according to the present invention.
5 is a coupling configuration diagram showing a lower chamber provided in the lower mold according to the present invention.
6 is an isolated configuration diagram of a lower chamber provided in the lower mold according to the present invention.
7 is a cross-sectional configuration view of the lower mold according to the present invention.
8 is a front cross-sectional view of the lower mold according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The terms used in the present invention are terms defined in consideration of the functions in the present invention, which may vary depending on the intention or custom of the user or operator, so the definitions of these terms correspond to the technical matters of the present invention and should be interpreted as a concept.

In addition, the embodiments of the present invention do not limit the scope of the present invention, but are merely exemplary matters of the components presented in the claims of the present invention, and are included in the technical spirit throughout the specification of the present invention and the scope of the claims. It is an embodiment including a substitutable component as an equivalent in the component.

In addition, optional terms in the examples below are used to distinguish one component from other components, and the components are not limited by the terms.

Accordingly, in describing the present invention, detailed descriptions of related known technologies that may unnecessarily obscure the gist of the present invention will be omitted.

1 to 8 are views showing the pulp mold forming apparatus according to the present invention and respective components thereof.

As shown in FIGS. 1 and 2, the pulp mold molding apparatus according to the present invention includes a lower mold 100 and an upper mold 200, and the lower mold 100 is fixedly provided while the upper mold 200 ) is provided to be raised and lowered toward the lower mold 100 .

In particular, the lower mold 100 is provided to be movable up and down on the base frame of the molding apparatus, and after setting the lower mold 100 by moving it up and down, it is provided in a fixed position.

As shown in FIGS. 3 to 6 , the lower mold 100 has a lower mold frame 110 having a concave-convex shape corresponding to an irregular seat for molding a product packaging mold (hereinafter, “Nanjwa” will be described as an example). ) and a lower chamber 120 to which the lower mold 110 is mounted and fixed, and a mold case 140 accommodating the lower chamber 120 and the lower mold 110 therein.

The lower mold 110 is provided to be arranged in a square or rectangular shape on the upper surface of the lower chamber 120, and each lower mold 110 is provided to be spaced apart so as not to cover the supply port 124 to be described later, and this The lower mold frame 110 provided together completely covers the upper surface of the lower chamber 120 excluding the supply port 124 to close it in a hermetically sealed state.

As shown in FIG. 8, on the surface of the lower mold 110 formed in this way, a plurality of fine dewatering holes 111 are formed, and the dewatering holes 111 may be formed in a mesh structure having micropores. , among the raw materials supplied to the upper surface of the lower mold 110 , the pulp remains attached to the surface of the lower mold 110 , and only the water contained in the pulp is discharged through the dehydration hole 111 and is dehydrated.

In addition, in the lower chamber 120 provided with the lower mold 110 as described above, a supply port 124 for supplying the pulp raw material to each lower mold 110 is provided between the lower molds 110 . do.

On the other hand, as shown in FIGS. 6 to 8 , the lower chamber 120 is provided with a plurality of independent unit chambers 120a spaced apart from each other in one direction, and the space between the unit chambers 120a is where the raw material flows. It is formed as a supply path 121 that can 121) is provided with a finishing plate to cover and finish.

The supply path 121 is provided with a supply port 124 formed in a bracket 123 to be described later provided on the upper surface of the lower chamber 120 to communicate with each other, and the supply port 124 is the length of the unit chamber 120a. Although provided side by side along the direction, the supply port may be further provided in a direction orthogonal to the unit chamber 120a without being limited thereto.

In particular, on the upper surface of all unit chambers 120a constituting the lower chamber 120, a bracket 123 for connecting and integrating a plurality of unit chambers 120a is fixed and provided. It covers the supply path 121 between the 120a and is formed as a lattice-shaped flat plate having a space in which a plurality of lower mold frames 110 can be respectively seated and mounted. (124) is formed.

Such a supply port 124 may be formed with a length corresponding to the length of the unit chamber 120a, but preferably the supply port of each line is formed of a plurality of supply ports 124 divided at regular intervals, at least It is preferable that one divided supply port 124 is provided so as to cover the installation space of the lower chamber 120 in which the lower mold frame 110 is installed. Accordingly, the raw material (pulp) can be uniformly supplied by the respective supply ports 124 for each lower mold 110 .

Therefore, the raw material, ie, the pulp, supplied to each supply port 124 of the lower chamber 120 is rapidly supplied to the entire lower chamber 120 and uniformly supplied to each lower mold frame 110, and thus supplied Since the lower mold 110 is completely submerged and then dehydrated by the raw material used, the pulp in the raw material is uniformly attached to the front lower mold 110 to mold the chaos made in the front lower mold 110 to a certain thickness. be able to At this time, since the raw material supplied to the upper surface of the lower chamber 120 through each supply port 124 is supplied only in an amount not exceeding the inner wall portion 141 of the mold case 140 to be described later, waste due to overflow of the raw material is reduced. can be prevented

In particular, in the present invention, the reason that each of the supply ports 124 for supplying the raw material to the lower mold 110 is provided between the lower molds 110 is because the specific gravity of water and pulp constituting the raw material is different, so when supplying the raw material, water is moved far within the inner wall 141 of the mold case 140 to be described later and spreads evenly, whereas the pulp has a relatively heavier specific gravity than water, so it cannot be supplied to a distant place, and most of it remains around the supply port 124 In consideration of this, a supply port 124 is provided between the lower mold frames 110 .

Accordingly, by providing a supply port 124 through which the raw material is supplied between the lower molds 110 , there is an advantage in that the thickness of the pulp mold formed in each of the lower molds 110 can be maintained constant.

In addition, on the bottom surface of each unit chamber 120a, a dewatering port 122 to which a dewatering pipe 131 to be described later is connected is respectively formed, and the lower chamber 120 is provided with a lower mold ( 110), a suction force that sucks water from the raw materials and dehydrates it acts.

Meanwhile, for the smooth dehydration of the lower chamber 120 as described above, the lower portion of the lower chamber 120 is provided to be sealed by the lower plate 130 .

The lower plate 130 is provided so that its rim surrounds the outermost side of the lower chamber 120 , and a plurality of dewatering pipes 131 are provided between the lower plate 130 and the lower chamber 120 , respectively. The pipe 131 is provided to pass through the lower plate 130 and communicate with the dewatering port 122 of the lower chamber 120 at the same time. A vacuum pump is connected to the dewatering pipe 131 to apply a suction force (vacuum pressure) to the lower chamber 120 through the dewatering pipe 131 .

Accordingly, the same vacuum pressure is applied to the lower chamber 120 at once through each unit chamber 120a constituting the lower chamber 120 and the dewatering pipe 131 connected to each unit chamber 120a, respectively, and thus the lower mold. Since all the water in the raw material supplied to the mold 110 is sucked and dehydrated at once, the pulp mold can be simultaneously molded in each lower mold 110 .

In addition, a raw material supply pipe 132 for supplying raw materials to each of the supply passages 121 and the supply ports 124 of the lower chamber 120 is connected to the central portion of the lower plate 130 and provided.

The raw material supply pipe 132 is provided with an opening/closing valve 133 capable of opening and closing the pipeline, and a bypass pipe 134 for discharging the raw material by bypassing it is provided on one side of the raw material supply pipe 132, and the bypass An opening/closing valve 135 capable of opening and closing the pipe line is also provided in the pipe 134 .

In addition, the lower chamber 120 and the lower mold 110 as described above are accommodated therein and fixed, while a mold case 140 that blocks the leakage of the raw material supplied to the lower mold 110 is further provided. .

The mold case 140 has a double-walled structure, and includes a rectangular inner wall portion 141 having upper and lower surfaces open, and an outer wall portion 142 surrounding the inner wall portion 141 . In particular, the inner wall part 141 is provided with the lower chamber 120 and the lower mold frame 110 are accommodated therein to be fixed, and the outer wall part 142 is the inner wall part 141 in a state surrounding the inner wall part 141 . ) is formed higher than that, and is provided to double block the overflow of the raw material supplied to the lower mold 110 .

In addition, the lower chamber 120 and the lower mold frame 110 and the outer surface of the lower plate 130 surrounding the lower chamber 120 are also accommodated therein in the inner wall portion 141 as described above, so that the lower chamber ( 120) can be tightly sealed.

In addition, the inner wall portion 141 and the outer wall portion 142 of the mold case 140 are provided to be spaced apart from each other at regular intervals, and the inner wall portion 141 due to a malfunction between the spaced inner wall portion 141 and the outer wall portion 142 . ) may be provided with a drain hopper (not shown) that receives the overflowing raw material and recovers it to the raw material tank.

The upper mold 200 is provided to move up and down on the base frame of the molding apparatus as shown in FIGS. 1 and 2 .

The upper mold 200 is provided with a plurality of upper mold frames 210 having a shape corresponding to the lower mold frame 110 of the lower mold 100 , and the upper mold 210 is the lower mold frame 110 . ) are arranged in a one-to-one correspondence at the top.

Accordingly, the upper mold 210 and the lower mold 110 are mold-coupled to form a pulp mold in the form of an oval.

In addition, a number of micro-adsorption holes (not shown) are formed on the surface of the upper mold 210 as described above, so that the semi-dried pulp mold attached to the lower mold 110 is adsorbed to the lower mold. It is released from the frame 110 so that it can be transferred to the next process.

On the other hand, the upper mold 200 having the upper mold frame 210 as described above is provided to be raised and lowered by the servo cylinder 220 provided on the upper surface thereof, and the servo cylinder 220 is the servo motor 221 at its upper end. Since the vertical movement amount is precisely controlled by the , it is possible to accurately control the elevation width of the upper mold 200 .

In particular, the servo cylinder 220 is provided with a screw shaft (not shown) therein, and the elevation width of the upper mold 200 is determined according to the amount of rotation of the screw shaft, so the upper mold is formed by the servo motor 221 and the screw shaft. The amount of movement of 200 can be precisely controlled.

In addition, guide cylinders 230 for guiding the upper mold 200 to be lifted are provided on both sides of the servo cylinder 220 as described above.

The operational relationship of the pulp mold molding apparatus according to the present invention as described above will be described.

First, as in FIGS. 1 and 2 , in a state in which the upper mold frame 210 of the upper mold 200 and the lower mold frame 110 of the lower mold 100 are spaced apart from each other, the raw material is fed into the raw material supply pipe 132 . is supplied, and this raw material is again supplied onto the lower mold frame 110 on the upper surface of the lower chamber 120 through the supply path 121 and the supply port 124 of the lower chamber 120 .

The raw material supplied in this way is directly supplied to the corresponding lower mold 110 through each supply port 124 provided between the lower molds 110 so that the raw material is uniformly distributed for each lower mold 110 . is supplied, and this raw material supply is made until the lower mold 110 is completely submerged.

And, in a state in which the lower mold 110 is completely submerged by the raw material, the suction force of the vacuum pump is applied to the lower mold 110 , and water among the raw materials supplied to the lower mold 110 is the lower mold 110 ). It is drained through the dewatering hole 111 of the, and the pulp remains attached to the surface of the lower mold 110 .

In this state, the servo cylinder 220 of the upper mold 200 is operated to lower the upper mold 210, and the lowered upper mold 210 is superimposed on the upper surface of the lower mold 110 and mold-coupled. .

After that, when the suction force by the vacuum pump is applied to the upper mold 210, the semi-dry pulp mold attached to the surface of the lower mold 110 is moved to the lower mold by the suction force of the upper mold 210. 110), the upper mold 210 adsorbed to the upper mold 210 while demolding, and the upper mold 210 adsorbing the pulp mold is separated from the lower mold 110 by the rise of the servo cylinder 220, and then the next process It is moved to the drying unit to demold the pulp mold, and the demolded pulp mold is dried in the drying unit and then commercialized.

Although the present invention has been described in detail through specific examples, this is for the purpose of describing the present invention in detail, and the present invention is not limited thereto. It is clear that the modification or improvement is possible.

All simple modifications and variations of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be clarified by the appended claims.

100: lower mold 110: lower mold frame
111: dewatering hole 120: lower chamber
120a: unit chamber 121: supply path
122: drain hole 123: bracket
124: supply port 130: lower plate
131: dewatering pipe 132: raw material supply pipe
133,135: on/off valve 134: bypass pipe
140: mold case 141: inner wall portion
142: outer wall 200: upper mold
210: upper mold frame 220: servo cylinder
221: servo motor 230: guide cylinder

Claims (3)

A pulp mold molding apparatus comprising: a lower mold on which a pulp mold is molded; and an upper mold that is mold-coupled to the lower mold and transports the mold in an adsorbed state,
The lower mold is formed to correspond to the mold to be molded, while the lower mold 110 has micro-dehydration holes formed on its surface;
A lower chamber 120 which is fixedly provided to the lower mold and has a suction force applied therein for sucking water from the raw materials supplied to the lower mold and dehydrating it;
The lower chamber and the lower mold frame are accommodated therein and fixed while including a mold case 140 that blocks the leakage of raw materials supplied to the lower mold frame,
The lower chamber is provided with a plurality of independent unit chambers on the upper surface of which the lower mold frame is mounted in a line, and a plurality of unit chambers 120a are provided on the upper surface of all unit chambers 120a constituting the lower chamber 120 . A bracket 123 that connects and integrates into one is fixed and provided,
A space spaced apart between each unit chamber 120a is formed as a supply path 121 through which a raw material can flow, and the supply path 121 has a supply port formed in a bracket 123 provided on the upper surface of the lower chamber 120 . (124) is provided to communicate,
The bracket 123 covers the supply path 121 between the unit chambers 120a and is formed as a lattice-shaped flat plate having a space in which a plurality of lower mold frames 110 can be respectively seated and mounted, and the bracket 123 ) by forming a supply port 124 in the lattice region,
A pulp mold forming apparatus configured to form a pulp mold of a certain thickness by directly supplying raw materials to the corresponding lower mold through a supply port around each lower mold.
delete The method according to claim 1,
The mold case is provided with a double structure, and the outer wall portion surrounding the inner wall portion is formed higher than the inner wall portion in which the lower chamber and the lower mold frame are accommodated, thereby blocking the overflow of raw materials.

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