WO2017200321A1

WO2017200321A1 - Pulp mold manufacturing system

Info

Publication number: WO2017200321A1
Application number: PCT/KR2017/005181
Authority: WO
Inventors: 김태근
Original assignee: (주)이지기술; 김태근
Priority date: 2016-05-20
Filing date: 2017-05-18
Publication date: 2017-11-23
Also published as: CN106996060B; CN106996060A; KR101653613B1

Abstract

Disclosed is a pulp mold manufacturing system. The present invention relates to a pulp mold molding system, comprising a molding unit and a drying unit, in which a molding machine or a raw material container is additionally provided with a water blocking member in the molding unit where pulp is vertically moved up and down to be submerged in the raw material container and then raised to be molded. As such, a vortex of the pulp inside the raw material container due to the up-and-down movement of the molding machine is alleviated, such that it is possible to produce a satisfactory product having a uniform thickness.

Description

Pulp Mold Manufacturing System

The present invention relates to a pulp mold manufacturing system, and more particularly, when forming pulp mold using paper slurries and organic materials, it is possible to produce a good product having a uniform thickness by forming a molded part having a water curtain and a dry part, The present invention relates to a pulp mold manufacturing system capable of increasing the commercialization and productivity of a product.

In general, the pulp mold forming system is used to make various packaging materials, buffer materials, soil mats, etc., using liquid pulp-type paper slurries and organic materials prepared by mixing waste paper with water to dissociate them. For example, a rotary molding method, which is a method of molding a molded pulp, may be mentioned.

As shown in Figure 1, the rotary molding pulp molding apparatus is a die 10 is lowered to the raw material box (B) by rotation and exited after diving in the raw material box (B) containing the pulp (P) The process of vacuum forming, dehydration and trans is repeated.

In detail, the rotary molding pulp molding apparatus has a raw material box (B) and the raw material box for dividingly supplying and storing pulp (P) in an amount necessary for molding from the main tank (T) as shown in FIG. It is divided into a molding part for molding the pulp (P) stored in B) into a specific shape, and a drying part for drying the pulp molded in the molding part.

Here, the molding part is a mold machine 10 for forming pulp molding (M) by molding the pulp (P) in a specific shape, and a blowout suction machine for transferring the pulp molding (M) made by the mold machine 10 to the drying unit It consists of 20.

As shown in FIG. 2, the mold machine 10 has a box-shaped mold box 12 and a mold having a specific shape mesh 14 on one side thereof and attached to the mold box 12. It is composed of a mold 13 and suction / discharge pipes 16 and 17 connected to both ends of the mold box 12 to rotatably support the mold box 12.

The draw-out aspirator 20 is composed of a suction box 22 and a suction frame 24 attached to the lower side of the suction box 22, the suction frame 24 is a mesh 14 of the mold machine 10 It has a structure that can form a plurality of absorption holes (not shown) is formed, the suction box 22 is connected to the suction / discharge hose (26) (27).

In addition, a suction device (not shown) such as a vacuum pump is connected to the suction pipe 16 of the mold machine 10 and the suction hose 26 of the blowout suction machine 20, and the discharge pipe 17 and the discharge hose 27. ) Is connected to a pressurization device (not shown) such as an air compressor.

And once again referring to Figure 1, the drying unit is composed of a drying furnace 30 having a plurality of blowers 32 for ejecting high temperature dry hot air, and a conveying mechanism such as a conveyor 34 formed along the blowers 32. have.

According to the conventional rotary molding pulp mold forming system as described above, the molding process by the mold machine 10, the take-out transfer process by the blowout suction machine 20, the drying process by the drying furnace 30 proceeds sequentially This results in a complete pulp mold product, which will be described in detail below.

First, in a state in which the mold 13 attached to the mold box 12 of the mold machine 10 is inserted into the raw material box B containing the pulp P with the mesh 14 downward (in FIG. 2). Pulp P is adsorbed on the surface of the mesh 14 by the vacuum suction operation through the vacuum pump. At this time, the moisture in the raw material box (B) is discharged through the suction pipe 16 via the mesh (14).

After the pulp P is continuously adsorbed and the thickness reaches a constant value, after the pulp molding M is molded, the mold box 12 rotates and comes out of the raw material box B, and the mesh 14 And pulp molding (M) adsorbed thereto is directed upward.

At this time, after the pulp mold mold (M) is out of the raw material box (B), the suction aspirator 20 is lowered, the suction mold 24 and the pulp molding (M) is in close contact, where the vacuum in the mold box (12) As the suction action of the pump is stopped and the discharge action of the air compressor is performed, the pulp mold mol (M) is separated from the mesh 14, and conversely, in the suction 22 of the blowout suction unit 20, a vacuum pump is used. The pulp mold mol M is adsorbed to the suction mold 24 by the suction action.

And the pulp molding (M) adsorbed in the blowout suction 20 is moved to the drying unit is placed on the conveyor 34, and in the blower 32 while passing through the drying furnace 30 by the operation of the conveyor 34 It is completely formed by drying by the hot dry hot air blown out.

That is, according to the drying furnace pulp mold system as described above, the molding and drying of the pulp molding (M) is made by the simple molding operation of the mold machine 10 and the hot air drying operation of the drying furnace (30).

However, according to such a rotary molding pulp molding system, the following problems occur when molding a molded product.

First, since the pulp (P) is adsorbed to the mesh 14 by the operation of the mold machine 10 during the molding of the pulp molding (M), the mold box 12 is rotated to come out of the raw material box (B), At the time of rotation of the bin 12, the adsorbed pulp P flows to the tip side later exiting the raw material bin B according to the rotation direction of the mold bin 12, so that the thickness of the pulp molding M varies depending on the site. Rather, the edges are not neatly finished, making them messy.

As a result, a weight deviation of the front and the rear in the rotational direction occurs, and thus the dehydration rate is not uniform.

Second, since the pulp molding (M) contains a lot of water during the compression by the suction aspirator 20, the suction mold 24 is not strongly pressed against the pulp molding (M), pulp molding (M) The upper surface of is not formed smoothly.

Third, the pulp molding (M) having a high moisture content flow rate in the drying process is directly in contact with the hot air, such that the pulp molded product shrinks and deforms due to rapid moisture evaporation.

Fourth, the vortex phenomenon occurs in the pulp (P) inside the raw material box (B) in accordance with the rotation of the mold machine 10 has a problem that the thickness of the pulp molding (M) can vary.

Accordingly, an object of the present invention for solving this problem is in a pulp mold forming system including a molding part and a drying part, in which the pulp is molded while the pulp is molded while being vertically moved up and down to be locked in the raw material box and added to the mold machine or the raw material box. The present invention provides a pulp mold manufacturing system capable of producing a good product having a uniform thickness by providing a water blocking member to alleviate the vortex of the pulp inside the raw material box due to the vertical movement of the mold machine.

In order to achieve the above object, the present invention is a pulp mold forming system comprising a molding unit and a drying unit, the molding unit, a mold box vertically moved up and down in the raw material box, a mold frame attached to the mold box, A mold machine having a mesh attached to the upper surface of the mold frame to suck the pulp and having a pulp molded product loaded therein and a suction / discharge hose connected to the mold box; A suction box, a suction frame attached to a lower surface of the suction box and having a shape corresponding to the mold frame, and a suction / discharge pipe connected to the suction box are provided to press and press the pulp molding loaded on the upper side of the mesh. Aspirator to transfer to the drying unit by; And a pulp mold including a plurality of lattices formed with an inlet hole through which pulp can pass, and a water barrier member fixed to one side of the mold machine, to be coupled to form a receiving space surrounding the mold frame at an upper end of the mold box. Provide a manufacturing system.

According to the pulp mold manufacturing system of the present invention described above, it is easier to control the thickness of the product than the rotary molding method that can not obtain a uniform thickness by using the vertical up-down molding method, the effect of less molding weight horseshoe, mold machine Since the vacuum by the suction hose acts in the direction of gravity, it is very advantageous for dewatering during the primary molding of the pulp molding (M).

In addition, since the after-press is carried out by the second mold machine of the present invention, it is possible to form a smooth surface on the pulp molding, increase the flavor and aesthetics associated with food, and fine-tune the text on the surface of the pulp molding (M) as necessary. There is also an effect that can be displayed. As a result, the effect of removing foreign matter or wire marks, etc., remaining on the surface by the second mold machine also occurs.

In addition, the wire mesh conveyor of the present invention has a high porosity, so that the flow of hot air by the blower is smoothly circulated inside the drying furnace, so that the drying efficiency is good by applying direct hot air instead of indirect hot air up and down to the pulp molding. The unit can be relatively small and short in length, and thus has the advantage of easy installation and maintenance.

In addition, according to the present invention, it is possible to produce a variety of products, such as a three-dimensional product with a curved buffer and egg plate, such as a flat mat seedling nail mat.

1 is a perspective view showing a conventional rotary pulp mold forming apparatus.

FIG. 2 is a perspective view of the mold and the blowout aspirator of FIG. 1. FIG.

Figure 3 is a perspective view showing the overall appearance of the pulp mold production system according to the present invention.

FIG. 4 is a perspective view illustrating an aspirator and a mold machine in FIG. 3.

FIG. 5 is a perspective view illustrating the water blocking member in FIG. 3.

7 is a perspective view showing the overall appearance of the pulp mold production system according to another embodiment of the present invention.

8 is a perspective view illustrating an aspirator and a mold machine in FIG. 7.

9 is an enlarged perspective view illustrating an enlarged portion A ′ of FIG. 7.

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Embodiment of the present invention may be modified in various forms, the scope of the invention should not be construed as limited to the embodiments described in detail below. This embodiment is provided to more completely explain the present invention to those skilled in the art. Therefore, the shape of the elements in the drawings and the like may be exaggerated to emphasize a more clear description. It should be noted that the same members in each drawing are sometimes shown with the same reference numerals. In addition, detailed descriptions of well-known functions and configurations that are determined to unnecessarily obscure the subject matter of the present invention are omitted.

First, the pulp mold manufacturing system according to the present invention is devised to solve the problems of the rotary molding pulp molding apparatus as described above in the background art, and is largely divided into a molding part and a drying part as shown in FIG. 3.

In this case, the molding unit includes a vertical up-down mold machine 100 and a suction machine 200 located at an upper end of the mold machine 100. Specifically, as illustrated in FIGS. 3 to 5, the vertical up-down method The mold machine 100 is a box-shaped mold box 110 vertically moved up and down in the raw material box (B) by a pneumatic cylinder (not shown), and a mold frame 120 attached to the mold box 110 And, the mesh 130 is attached to the upper surface of the mold 120 and the suction / discharge hose (140, 150) connected to the mold box (110). In this case, a suction device such as a vacuum pump is connected to the suction hose 140, and a pressurization device such as an air compressor is connected to the discharge hose 150.

The aspirator 200 is attached to the lower surface of the suction box 210, the suction box 210, the suction frame 220 having a shape corresponding to the mold 120, and the suction box ( It consists of suction /

discharge pipes

230 and 240 connected to 210. In this case, the suction box 210 may be provided with a heater (not shown) therein. In addition, one side of the suction box 210 is connected to the suction pipe 230 in which the vacuum force of the vacuum sole valve acts and the discharge pipe 240 in which the air pressure of the air sole valve acts.

In addition, the mesh 130, which is covered on the upper outer surface of the mold frame 120 is covered with a steel material, so as to adsorb only the pulp contained in the pulp solution when the mold machine 100 rises to complete the pulp molding (M). In addition, if the pulp (P) is too thin, the molding time is long, if thickened, the thickness formed at the same time becomes thick, it can be appropriately selected.

First, the suction mold through the vacuum pump in the state in which the mold 130 is attached to the mold box 110 of the mold machine 100 into the raw material box (B) containing the pulp (P) is introduced ( The pulp P is adsorbed on the surface of the mesh 130 by the vacuum suction operation of 140.

After the pulp P is continuously adsorbed and the thickness reaches a constant value, after the pulp molding M is molded, the mold box 110 rises and comes out of the raw material box B.

In this case, in order to increase the speed of locking or rising into the inside of the raw material box B of the mold machine 100 in order to increase the productivity of the product, vortex phenomena occur in the pulp P of the raw material box B. In addition, even if the descending speed of the mold 100 is slow, even after a strong suction action by the suction hose 140 after the mold 100 is locked into the inside of the raw material box (B) it can completely prevent the fundamental vortex phenomenon. There was no problem.

In particular, in order to produce a seedling mat mat for the mold, the mold machine 100 is formed wide. When the mold machine 100 is immersed in the inside of the raw material box B, due to the severe vortex of the pulp P The pulp material adsorbed to the mold box 110 is swept away from the periphery, so that the thickness of the pulp molding (M) is different from the periphery of the periphery, thereby making it difficult to produce a uniform product of nail mat for the final hair growth. In order to reduce the vortex phenomenon, if the mold box 110 raises or lowers the lowering speed, a low productivity problem occurs.

Therefore, in the present invention, the water barrier member 300 is provided on the upper end of the mold machine 100 to be spaced apart from the mold machine 100 to solve the above problems.

In addition, one side of the water blocking member 300 is provided with a fixing member 320 that can be fixed to the top of the mold (100) (see Fig. 4), or to the top of the raw material box (B) (see Fig. 8). do.

As the water blocking member 300 is shown in Figure 6, a plurality of gratings 310 are coupled to each other to form a plurality of receiving spaces (S) surrounding the mold frame 120 on each of the upper end of the mold box (110) In addition, the grating 310 is formed with an inlet hole 311 through which the pulp (P) can pass.

Therefore, when the mold machine 100 submerges into the inside of the raw material box (B) or exits to the outside, the vortex phenomenon is primarily alleviated by the lattice 310 of the water blocking member 300, and then the lattice 310 By passing the pulp (P) by the inlet hole (311) of the) will be able to eliminate the secondary vortex phenomenon.

Thereafter, after the mold machine 100 comes out of the raw material box B, the suction machine 200 descends to closely adhere the suction mold 220 and the pulp molding M, in which the mold box 110 is connected to a vacuum pump. As the suction action of the suction hose 140 is stopped and the discharge action of the discharge hose 150 is performed by the air compressor, the pulp mold mol (M) is separated from the mesh 130 and, on the contrary, the suction of the aspirator 200 is performed. In the box 210, the pulp mold mole M is adsorbed to the suction mold 220 by the suction action of the suction pipe 230 by the vacuum pump.

And the pulp molding (M) adsorbed to the aspirator 200 is moved to the drying unit, is dropped on the conveyor 320 of the drying furnace 310 by the discharge action of the discharge pipe 240 is transported.

In this case, the pulp mold mole (M), which is a semi-finished product molded in the mold machine 100, which is a lower die, is adsorbed onto the suction die 200 of the upper die, and the suction die 200 is vertically and horizontally moved and transferred to the drying unit. It descends into the 1cm to 10cm above the 320 is detached to the conveyor 320.

Thereafter, the mold machine 100 is submerged back into the raw material box B through a washing process, and the suction machine 200 returns to the position of the mold machine 100 in horizontal and vertical motions.

The vertical up-down method is easier to control the product thickness than the rotary molding method that can not obtain a uniform thickness, there is an effect of less molding weight horseshoe. In addition, since the vacuum by the suction hose 140 acts in the gravity direction, there is a very advantageous advantage in dewatering during the primary molding of the pulp molding (M), and the wrinkles of the pulp molding (M) are generated less.

In addition, when the mold machine 100 is submerged into the inside of the raw material box (B) by the water blocking member (300) or when it comes out, the thickness variation of the pulp molding (M) due to the vortex phenomenon of the pulp (P) is reduced and uniform. It is possible to manufacture mats for seedling nails.

After that, the pulp molding (M) enters the drying unit. The pulp molding (M) passes through the drying furnace 310 by a transfer mechanism such as a conveyor 320 and undergoes a drying process. At this time, the hot air is discharged through the blower 330 in the drying furnace 310 to dry the pulp molding (M) by the heat of convection and radiant heat of the hot air.

In this case, referring to FIG. 3 again in the drying unit according to the present invention, a conveyor 320 having a single-layer structure, not a multilayer structure, in the drying furnace 310, and a pulp molding M at an upper end of the conveyor 320. As a structure that is directly positioned, a separate carrier is not provided, and hot air drying by the blower 330 is performed in the drying furnace 310.

In order to perform efficient drying in the drying furnace 310, the surface of the conveyor 320 is formed of a wire mesh of steel material, the wire mesh conveyor 320 is a heat transfer directly The drying method has the advantage of high heat transfer rate.

In addition, the drying unit of the present invention has a high porosity of the wire mesh conveyor 320, the flow of hot air by the blower 330 is smoothly circulated in the drying furnace 310, and thus up and down in the pulp molding (M) Drying efficiency is good by applying direct hot air instead of indirect hot air, and thus the drying part can be relatively small and short in length, and there is an advantage in that it is easy to maintain equipment.

In this way, the pulp molded product M, which has undergone the primary drying process by the aspirator 200 and the secondary drying process in the drying furnace 310, passes through the drying unit, in which case the drying furnace 310 of the drying unit. Since it is designed as a single layer structure rather than a multi-layer structure, it is to increase the productivity of the product in order to dry quickly.

The pulp molding (M) once out at a predetermined interval to the outside of the drying furnace 310, and the residence time in the drying furnace 310 is also adjusted appropriately to set the drying conditions. The hot air temperature of the blower 330 in the drying furnace 310 may be different for each product. Since the molding thicknesses of the pulp moldings M are almost similar, 60 ° C. according to the type of the mat-shaped pulp moldings M. It can select suitably in the range of -350 degreeC.

7 to 9 is another embodiment of the present invention, the water blocking member 300 is attached to the upper end of the raw material box (B), the mold die 120 of the mold box 110 is a flat shape of the mat shape This is a perspective view showing the shape is not curved.

In this case, as shown in Figure 7 to 8, the water blocking member 300 is attached to the upper end of the raw material box (B) rather than the mold machine 100, the position of the water blocking member 300 is the raw material box (B) It is located at the upper end of the pulp (P) at a predetermined interval and fixed.

In this case, the height of the pulp (P) is supplied from the main tank (T) to maintain a constant height, when the concentration of the pulp (P) is high there is a risk that the inlet hole (311) of the water blocking member 300 is blocked. It is a configuration that can be installed.

That is, when the water blocking member 300 is attached to the upper end of the mold machine 100, when the mold machine 100 is submerged in the raw material box (B), the water blocking member 300 is also submerged into the raw material box (B), If the concentration of pulp (P) is high, the inlet hole (311) is blocked, the buffer effect of the pulp (P) is reduced.

Therefore, when the water blocking member 300 is attached to the raw material box (B) with a predetermined interval at the height of the pulp (P), even when the concentration of the pulp (P) is high, the vortex phenomenon of the pulp (P) continuously It can be mitigated.

The embodiment of the pulp mold manufacturing system of the present invention described above is merely exemplary, and those skilled in the art to which the present invention pertains can various modifications and other equivalent embodiments therefrom. You will know. Therefore, it will be understood that the present invention is not limited to the forms mentioned in the above detailed description. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims. It is also to be understood that the present invention includes all modifications, equivalents, and substitutes within the spirit and scope of the invention as defined by the appended claims.

[Description of the code]

100: mold machine 110: mold box

120: mold 130: mesh

140: suction hose 150: discharge hose

200: aspirator 300: water blocking member

310 grid 311 inlet hole

320: fixed member

Claims

In the pulp mold forming system comprising a molding part and a drying part,

The molding unit,

The mold box 110 vertically moved up and down in the material box B, the mold frame 120 attached to the mold box 110, and attached to the upper surface of the mold frame 120 to adsorb pulp. A mold machine 100 having a mesh 130 on which pulp moldings M are loaded and suction / discharge hoses 140 and 150 connected to the mold box 110;

A suction box 210, a suction frame 220 attached to a lower surface of the suction box 210 and having a shape corresponding to the mold frame 120, and a suction / discharge pipe connected to the suction box 210 ( 230 and 240 are provided, the suction unit 200 for pressing the pulp molding (M) loaded on the upper side of the mesh 130 and then adsorbed and transported to the drying unit; And

A plurality of gratings 310 and coupled to form a receiving space (S) surrounding the mold frame 120 at the top of the mold box 110, the inlet hole 311 through which the pulp (P) can pass; A water blocking member (300) having a fixing member (320) fixed to one side of the mold machine (100);

Pulp mold manufacturing system comprising a.
The method according to claim 1,

The drying unit,

A drying furnace 310, a blower 330 provided inside the drying furnace 310 to perform hot air drying of the pulp molding M, and the pulp molding M penetrating through the drying furnace 310. Pulp mold manufacturing system comprising a conveyor 320 is conveyed, the surface is formed of a wire mesh.