KR100960481B1 - Manufacturing equipment for pulp mold - Google Patents

Abstract

The present invention relates to a pulp molding apparatus, wherein a heating means for heating a mold is embedded in at least one side of a plurality of upper molds and lower molds disposed opposite to each other, and a support column is provided on the back side of the mold. The support plate for supporting the molds are installed so that a plurality of molds are continuously arranged, and the insulation is filled between the mold and the support plate, and the heating means directly heat each of the molds individually to minimize heat loss and Even in operation, it has the effect of maintaining the fixed sum between the upper mold and the lower mold.

In addition, the present invention consists of a structure in which the support column is a fixed block made of a metal material and a heat insulating block made of a heat insulating material is combined, it is possible to reduce as much as possible the heat generated in the mold transferred to the support plate side by the support column.

Pulp molding, mold, heating means, support column, support plate, fixed block, insulating block

Description

Pulp Molding Manufacturing Equipment {Manufacturing equipment for pulp mold}

The present invention relates to an apparatus for producing pulp moldings, and more particularly, to directly heat each mold individually, and to continuously arrange a plurality of molds on a support plate, and to transfer heat generated inside the mold to the support plate. It relates to a pulp molding production apparatus that can be blocked.

In general, pulp moldings are formed by processing pulp raw materials, and have been applied in various fields such as food packaging containers such as eggs and fruits, and shock absorbing packaging tools for electronic products. These pulp moldings are naturally friendly, so foods can be stored freshly, and there is an advantage that corrosion occurs quickly when used as landfills.

[0003] A pulp molding apparatus for producing pulp moldings usually includes a reservoir for storing pulp raw materials and a mold for shaping pulp raw materials in the form of a container or the like. The mold is disposed so that the upper mold and the lower mold face each other, and after the pulp material in the reservoir is placed on the lower mold, the upper mold and the lower mold are lifted together by a lifting means such as a cylinder to transfer the pulp raw material to the container. Molded into the shape of. At this time, a plurality of vacuum suction holes are formed in each mold, and the pulp raw material and the pulp molded product are vacuum sucked or blown to the opposite mold side on the mold. In addition, each mold has a separate heater plate in the rear, and heat-dry the pulp raw material and the pulp molding by the heat transferred from the heater plate.

1 is a cross-sectional view showing an example of a conventional pulp molding apparatus, which illustrates the mold of any one of the upper mold or the lower mold of the manufacturing apparatus for forming the egg seat by processing the pulp raw material. Referring to FIG. 1, in the conventional pulp molding apparatus, a plurality of molds 10 for molding a unit pulp container are continuously installed on a heater plate 12, and heating means such as a heating wire is installed in the heater plate 12. 14 is installed. The heater plate 12 is installed to be supported on the support plate 18 by the support column 16, and a cylinder, a vacuum line, and the like, which are not shown, are installed behind the support plate 18. In addition, a heat insulator 20 is provided between the heater plate 12 and the support plate 18 to reduce the transfer of high temperature heat generated from the heater plate 12 to the support plate 18 side.

However, in the above structure, since the heat generated from the heater plate 12 is transferred to the mold 10, the heater plate 12 must be heated to a very high temperature in order to heat the mold 10. Significant heat loss occurs in the course of heating the heater plate 12. In addition, thermal deformation of the heater plate 12 is caused, and as the operation time becomes longer, the heater plate 12 is finely thermally deformed along the longitudinal direction. Since a plurality of molds 10 are generally disposed on the heater plate 12, the positions of the molds 10 are changed according to the heat deformation of the heater plate 12, which results in a standing sum between the upper mold and the lower mold. This leads to a problem that is not made. That is, in the conventional pulp molding apparatus, due to the use of the heater plate 12, the thermal deformation of the heater plate 12 causes a change in the position of the mold 10, and accordingly the longer the operating time, the upper mold and lower mold There is a problem in that the product defect rate is high because the interlocking is not achieved.

In addition, due to the above problems, it is difficult in the conventional pulp molding production apparatus to arrange a plurality of molds 10 continuously on the heater plate 12. Placing a plurality of molds 10 in series provides an environment in which a larger amount of products can be produced. However, in the conventional pulp molding manufacturing apparatus, it is necessary to design in consideration of the heat deformation of the heater plate 12, so that there is no choice but to place the mold 10 of a limited quantity (about 2) on the heater plate 12, which is It acts as a barrier to mass production.

Furthermore, in the conventional pulp molding apparatus, a heat insulating material is filled between the heater plate 12 and the support plate 18 to insulate the heater plate 12 and the support plate 18, but the heater plate 12 is supported by the support plate 18. The support column 16 for supporting the image is made of a metal material. Therefore, the support column 16 acts as a heat conductor, so that the heat generated from the heater plate 12 is transferred to the support plate 18 by the support column 16, and the heat deformation and the support plate 18 of the support plate 18. It causes failure due to deterioration of components installed at the rear.

The present invention has been proposed to solve the above problems, by installing a heating means directly inside the mold to minimize the heat loss by directly heating the mold, and individually heating each mold for forming a unit pulp container By doing so, it is possible to maintain the stationary summation between the upper mold and the lower mold even for a long time operation, and to provide a pulp molding production apparatus capable of mass production of the pulp molding by continuously arranging a plurality of molds.

In addition, the present invention has a structure in which the support column for installing the mold to be supported on the support plate combined with a fixed block made of a metal material and a heat insulating block made of a heat insulating material, thereby preventing thermal deformation of the support plate and deterioration of components behind the support plate. Another object is to provide an apparatus for producing pulp molding which can be used.

In the pulp molding production apparatus of the present invention for achieving the above object, a plurality of upper molds and lower molds for molding the pulp material in the form of a mold are disposed opposite each other, the at least one of the upper mold and the lower mold In the pulp molding manufacturing apparatus for producing a pulp raw material as a pulp molding while the upper mold and the lower mold are joined to each other, the heating means for heating the mold is embedded in the at least one side of the mold, the back side of the mold A support plate for supporting the molds is installed so that a plurality of molds are continuously arranged through the support column, and a heat insulating material is filled between the mold and the support plate.

Preferably, the heating means is a heating wire embedded in the mold.

According to one embodiment of the invention, the support column is made of SUS material.

According to another embodiment of the present invention, the support column is configured to include a fixed block made of a metal material, and an insulating block made of a heat insulating material and coupled between the fixed blocks.

More preferably, the fixed block is fixed to one end of the mold or the support plate and the other end of the first fixed block is coupled to the insulating block, one end is coupled to the insulating block and the other end is adjacent to the other fixed block It consists of a second fixed block is coupled.

In the embodiment, the fixed block and the insulating block is formed in the through hole in the center along the longitudinal direction, the fixed block has a locking jaw inside the contact portion with the insulating block, the connecting rod is inserted to pass through the through hole And, both ends of the connecting rod is provided with a head portion made of a heat insulating material to be caught on the locking step, it is preferable to be coupled to the insulating block and the fixed block by the connecting rod.

According to the pulp molding production apparatus of the present invention, by directly installing the heating means in each of the mold, directly heating the mold individually, thereby minimizing the heat loss, and standing still between the upper mold and the lower mold It is possible to maintain a large number of molds in succession, there is an effect that can be mass-produced pulp molding.

In addition, according to the present invention, as the support column installed between the mold and the support plate to support the mold to the support plate has a configuration in which the fixed block of the metal material and the heat insulation block of the heat insulating material are combined, the heat generated inside the mold is supported by the support plate. It is possible to block the transmission to and the effect of protecting the support plate and the components behind it from the high temperature heat.

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

The pulp molding production apparatus of the present invention, similar to the conventional pulp molding production apparatus, the reservoir containing the pulp raw material, a plurality of upper molds and lower molds disposed opposite to each other, the pulp raw material in the reservoir is at least one upper surface of the lower mold It is comprised, including a means which accumulates. The present invention is characterized by at least one of the upper mold and the lower mold of the mold structure and the support structure of the mold, in the following description, in addition to the above-described mold structure and the support structure of the mold, the conventional configuration of the pulp molding production apparatus Detailed description thereof will be omitted.

Figure 2 is a cross-sectional view showing a mold coupling structure in the pulp molding apparatus of the present invention, Figure 3 is a cross-sectional view showing a coupling state of the support column in the present invention, Figure 4 is a cross-sectional view showing an example of the pulp molding manufacturing apparatus of the present invention. to be.

First, Figure 2 shows the mold 50 and its supporting structure in the pulp molding apparatus for forming the egg seat plate. Referring to FIG. 2, a heating means 52 is embedded in the mold 50 corresponding to the shape of the egg seat plate. Heating means 52 is a heating wire or other various heating means. When the heating wire is selected as the heating means 52, although not shown, an electronic circuit for heating the heating wire will be connected to the heating means 52. As such, the heating means 52 is embedded in the mold 50 to directly heat the respective molds 50 without passing through a separate heat transfer member of the heating means 52, which is a heating means 52. The heat generation temperature of) can be set relatively low, and heat loss is minimized in the process of heating the mold 50. In addition, since the respective molds 50 are individually heated, even if the mold 50 is thermally expanded, its installation position is not changed, which means that even if the pulp molding apparatus of the present invention is operated for a long time, the upper mold 50a and the lower mold are operated. (50b) Let the fixed sum be maintained.

As shown in FIG. 2, a plurality of molds 50 are disposed on the support plate 54. Each mold 50 is supported and installed on the support plate 54 via the support column 60, and the heat insulating material 56 is filled in the space between the mold 50 and the support plate 54. The heat insulator 56 prevents heat generated in the mold 50 from being transferred to the support plate 54, thereby preventing thermal deformation of the support plate 54.

The support column 60 may be made of a SUS material having a relatively low thermal conductivity compared to other metals. In this case, the support column 60 is preferably selected to a lower diameter in order to maximally block the heat generated on the mold 50 side from being transferred to the support plate 54 side.

More preferably, as shown in FIG. 3, the support column 60 also includes a fixing block 62 made of a metal material to block heat generated in the mold 50 from being transferred to the support plate 54. The insulating block 64 made of a heat insulating material is made of a combined structure. In this case, as the heat insulating material 56 filled between the mold 50 and the support plate 54, a soft heat insulating material having a relatively large amount of voids is selected, and as the heat insulating material of the heat insulating block 64 constituting the support column 60, the mold is used. It is preferable that a hard heat insulating material is selected for the stable support of (50).

Figure 3 is a cross-sectional view showing a coupling state of the support column in the present invention, a partially enlarged view of the mold support structure shown in FIG. Referring to this, the support column 60 is composed of a plurality of fixed blocks 62 and the insulating block 64 is coupled between the fixed blocks 62. As described above, in the structure in which the fixing block 62 and the insulating block 64 are coupled, the fixing block 62 made of metal is fastened to the fastening portion of the mold 50 or the support plate 54 to have a more firm fastening force, and the fixing is performed. The insulating block 64 may be coupled between the blocks 62 to block heat generated from the mold 50 from being transferred to the support plate 54 through the support column 60.

More specifically, the fixed block 62 is fixed to the mold 50 or the support plate 54, the other end of the first fixing block 62a is coupled to the insulating block 64, and one end of the insulating block It is coupled to 64 and the other end is composed of a second fixed block 62b coupled to the other fixed block (62). Of course, the configuration of the support column 60 shown in Figure 3 is only one embodiment of the present invention, the number of stages of the fixed block 62 and the insulating block 64 can be added or subtracted.

The first fixing block 62a has a bolt fastening portion at one end thereof, or is fixed to the mold 50 or the support plate 54 by a separate connector 76 as shown in the figure. The connector 76 is screwed to the first fixing block 62a, the other side is provided with a screw groove or bolt shaft. In the illustrated example, the upper connector 76 has a screw groove, is fastened to the bolt 78 through the mold 50 is fixed to the mold 50 side. The lower connector 76 has a bolt shaft, which is bolted to a screw groove formed on the support plate 54 and fixed to the support plate 54. The insulating block 64 is coupled between the first fixing block 62a and the second fixing block 62b, and the other end of the second fixing block 62b is screwed with another neighboring second fixing block 62b. .

Preferably, the fixing block 62 and the insulating block 64 are formed with through-holes 66 at the center along the longitudinal direction, respectively, and each of the fixing blocks 62 is in contact with the insulating block 64. The locking jaw 68 is formed. As shown in FIG. 3, the connecting rod 70 is inserted into the through hole 66 of the fixing block 62 and the insulating block 64. Both ends of the connecting rod 70 is provided with a head portion 72 made of a heat insulating material to be caught by the locking step 68 formed in the fixing block 62. Head portion 72 is fixed to the insulating block 64 is fixed between the fixing block 62, blocking the contact between the connecting rod 70 and the fixing block 62 to prevent heat transfer through the connecting rod 70. do.

4 illustrates the pulp molding apparatus of the present invention to which the above-described mold 50 and its supporting structure are applied. Referring to this, the pulp molding apparatus of the present invention includes a plurality of upper mold 50a and the lower mold 50b spaced apart from each other. As described above, the heating means 52 is embedded in each mold 50. At the rear of each mold 50, a support plate 54 supporting the molds 50 is installed so that a plurality of molds 50 are continuously arranged. Each mold 50 is supported on the support plate 54 by the support column 60 described above.

Although the illustrated example illustrates that three molds 50 are supported on the support plate 54, a larger number of molds 50 may be installed on the support plate 54. In this way, the large number of molds 50 can be installed on the support plate 54, since the molds 50 are individually heated by the heating means 52 in which the molds 50 are embedded in the present invention. This is because the position of the upper mold 50a and the lower mold 50b can be fixed because the position of the upper mold 50a is not changed. Installing a larger number of molds 50 on the support plate 54 enables mass production of pulp moldings.

As shown in Figure 4, the pulp molding production apparatus of the present invention is provided with a reservoir (80) for storing the pulp raw material. One side of the reservoir 80 is provided with an inlet port 82 through which pulp material is introduced, and the inlet port 82 is connected to a pulp material supply line.

The upper mold 50a and the lower mold 50b are arranged to have a plurality of rows, and the lower mold 50b of any one of the plurality of rows of the lower molds 50b is immersed in the reservoir 80. The lower mold 50b, which is freshwater in the water storage tank 80, is loaded with pulp raw material on its upper surface, and is elevated to the upper mold 50a side by elevating means such as a cylinder. At this time, minute mold suction holes (not shown) are formed in each of the molds 50, and the vacuum suction holes are connected to the vacuum line 84. Therefore, when the pulp material is deposited on the lower mold 50b, the vacuum line open / close valve 86 is opened so that the pulp raw material is adsorbed on the lower mold 50b.

Pulp material is alternately adsorbed to the upper mold (50a) and the lower mold (50b), and shifted to the neighboring heat in any one mold 50, gradually heated by the heating means 52, such as egg seat plate Molded into pulp moldings.

In the pulp molding apparatus of the present invention described above, the heating means 52 is embedded in the mold 50, and the support column 60 connecting the mold 50 and the support plate 54 includes a fixed block 62. As the insulating block 64 has a combined configuration, other configurations may be replaced with other configurations generally known in the art in addition to the embodiment shown in FIG.

In addition, the present invention described above is not limited to the above-described embodiment and the accompanying drawings, it is possible that various substitutions, modifications and changes within the scope without departing from the technical spirit of the present invention, the technology to which the present invention belongs It will be apparent to those of ordinary skill in the art.

1 is a cross-sectional view showing a mold coupling structure of a conventional pulp molding apparatus

Figure 2 is a cross-sectional view showing a mold coupling structure in the pulp molding apparatus of the present invention

Figure 3 is a cross-sectional view showing a coupling state of the support column in the present invention

Figure 4 is a cross-sectional view showing an example of the pulp molding production apparatus of the present invention

<Explanation of symbols for the main parts of the drawings>

50: mold 52: heating means

54 support plate 56 heat insulating material

60: support column 62: fixed block

62a: first fixed block 62b: second fixed block

64: insulation block 66: through hole

68: hanging jaw 70: connecting rod

72: head

Claims (6)

A plurality of upper molds 50a and lower molds 50b for molding the pulp material into a mold form are disposed to face each other, and the mold 50 of at least one of the upper molds 50a and the lower mold 50b is lifted. In the pulp molding manufacturing apparatus for producing a pulp raw material as a pulp molding while the upper mold 50a and the lower mold 50b is joined, At least one side of the mold 50 is provided with heating means 52 for embedding each of the molds 50 directly and directly, and the back side of the mold 50 via a support column 60 a plurality of A support plate 54 supporting the molds 50 is installed such that the molds 50 are continuously disposed, and a heat insulating material 56 is filled between the mold 50 and the support plate 54, and the support column 60 is provided. Pulp molded article manufacturing apparatus characterized in that it comprises a fixed block (62) made of a silver metal material, and a heat insulating block (64) coupled between the fixed blocks (62) and made of a heat insulating material. The method of claim 1, The heating means 52 is a pulp molding apparatus characterized in that the heating wire is embedded in the mold (50). The method of claim 1, The support column 60 is a pulp molding apparatus characterized in that made of SUS material. delete The method of claim 1, The fixed block 62 has one end fixed to the mold 50 or the support plate 54 and the other end of the fixing block 62a is coupled to the insulating block 64, and one end thereof is the insulating block ( 64) is combined with the other end of the pulp molding manufacturing apparatus, characterized in that composed of a second fixed block (62b) coupled with the other fixed block (62). The method according to claim 1 or 5, The fixing block 62 and the insulating block 64 is formed with a through hole 66 in the center along the longitudinal direction, the fixing block 62 is a locking jaw (68) inside the contact area with the insulating block 64 And a connecting rod 70 is inserted to penetrate the through hole 66, and both ends of the connecting rod 70 are provided with a head portion 72 made of a heat insulating material to be caught by the locking jaw 68. , Pulp molding apparatus manufacturing apparatus characterized in that the insulating block 64 and the fixed block 62 is coupled by the connecting rod (70).

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