KR100584206B1 - Apparatus for manufacturing pulp container - Google Patents

Abstract

The present invention relates to an apparatus for molding a pulp container from a pulp solution. According to the present invention, a pulp container forming apparatus having a lower mold and an upper mold, and having a plurality of molding parts in which pulp containers are completed by sequentially passing adjacent molding parts, wherein the molding parts are inside a pulp solution reservoir. And a first lower mold including a first lower mold installed on the upper portion and a first upper mold mounted on the upper portion so as to be combined with the first lower mold. And a washing device 400 which is installed on an upper portion of the primary molded part pulp solution reservoir and includes a shower capable of spraying water into the first lower mold, and a driving means for linearly reciprocating the shower in a predetermined direction. Equipped. The washing device comprising a shower 402 and a driving device 404 is installed independently of the slider so that the burr of the pulp container can be removed during operation by spraying water with the first lower mold. Consists of.

Pulp container, pulp container molding, washing device, burr removal

Description

Apparatus for manufacturing pulp container

1 is a schematic configuration diagram of a conventional pulp container forming apparatus.

2A to 2H are explanatory views showing the operation of the conventional molding apparatus.

Figure 3 is an exemplary perspective view of a molding apparatus according to another conventional embodiment.

Figure 4 is an exemplary side view of the molding apparatus according to the present invention.

5 is a plan view of a molding apparatus according to the present invention.

Figure 6 is an exemplary side view of a molding apparatus according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

100 ..... 1st molded part 101 ..... pulp solution reservoir

110 .... First lower mold 120 .... First upper mold

200 ..... 2nd molded part 210 ..... 1st lower mold

220 ..... 2nd upper mold 400 ..... washing machine

402 ..... Shower 404 ..... Driving Means

The present invention relates to a pulp container forming apparatus, and more particularly to a pulp container forming apparatus configured to make the treatment of the edge portion of the pulp container more clean.

The pulp container is a recyclable material made of pulp as a main raw material, and is widely used as a lunch box container or a dish. Such a pulp container is generally made by applying heat and pressure using a predetermined mold in a state in which a predetermined amount of pulp and a solvent are mixed.

As an example of such a pulp container manufacturing apparatus, there is one disclosed in the Republic of Korea Utility Model Registration No. 283194, but the overall structure is complicated and the process is complicated disadvantages. In order to solve this disadvantage, the molding apparatus proposed by the applicant of the patent application No. 20-2002-0028382 is shown in Figure 1, the operating state is shown in Figure 2.

As shown, the conventional pulp container forming apparatus is composed of a primary molding unit 100 and a secondary molding unit 200, the primary molding unit 100 and the secondary molding unit 200 is a continuous molding operation It is installed continuously as possible.

The primary molding part 100 is composed of a first lower mold 110 and a first upper mold 120, and when the first lower mold 110 and the first upper mold 120 are coupled, therebetween In the predetermined pulp container is shaped. In addition, the first lower mold 110 is installed in the pulp solution reservoir 101, and is configured to be lifted up and down by a lifting device such as a hydraulic cylinder or a pneumatic cylinder. That is, the pulp solution supplied into the pulp solution reservoir 101 is sufficiently introduced into the first lower mold 110, and in this state, the first lower mold 110 will rise upward.

In addition, the first lower mold 110 has a structure in which a plurality of holes are formed to discharge only the solution downward, and such a structure is disclosed in detail in the aforementioned application.

The first upper mold 120 engaged with the first lower mold 110 is installed on the mold mounting plate 121, and the mold mounting plate 121 is installed upright on the corner portion thereof, for example, four. The guide bar 102 is penetrated, and is guided along the guide bar 102. The first upper mold 120 is also lifted by the lifting device 132.

The secondary molding part 200 is installed at a position parallel to the primary molding part 100. The secondary molding part 200 is composed of a second lower mold 210 and a second upper mold 220. The second lower mold 210 is provided on an upper portion of the slider 230 that moves horizontally in the horizontal direction. The second upper mold 220 has the same structure as the first upper mold 120 described above, and is configured to move up and down by the elevating device 232.

The slider 230 performs left and right reciprocating motion by reciprocating means such as a hydraulic or pneumatic cylinder. Accordingly, the second lower mold 210 installed on the slider 230 reciprocates between the lower position of the first upper mold 120 and the lower position of the second upper mold 220 by the slider 230. Will move.

On the front side of the slider 230 (based on the forward movement of the slider 230 (movement to the primary molding part side)), the shower 231 and the spray 233 are provided. In the shower 231, a liquid material such as water, and in the spray 233, a liquid coating agent is sprayed toward the first lower mold 110.

The water in the shower 231 is sprayed toward the first lower mold 110 to remove the tangled portion of the rim, thereby finishing the rim of the finished pulp container. In addition, the coating agent sprayed from the spray 233 may be sprayed with a predetermined time difference from the shower 231 and applied to the upper surface of the pulp container to be molded, thereby performing a function of coating the upper surface of the container.

In addition, at the right side of the slider 230 of the secondary molding part 200, a discharge plate 300 through which the completed pulp container is discharged is installed. When the finished pulp container is pushed to the right by the right end of the slider 230, the take-out plate 300 performs a function of receiving such a product and guiding it to a predetermined position.

Next, referring to Figure 2, the operation of the conventional pulp container forming apparatus and the configuration of the peripheral portion will be described. It goes without saying that the overall operation described below is substantially continuous.

As shown in FIG. 2A, the pulp solution is filled in the upper portion of the first lower mold 110 contained in the pulp solution reservoir 101. As shown in FIG. 2B, the slider 230 moves forward (moves to the right side) to the lower portion of the primary molding part 100, and the first upper mold 120 and the second upper mold 220 are separated by a predetermined interval. In the lowered and suspended state, each of the upper molds 120 and 220 drops the semi-finished product container attached by the suction means.

In addition, the first lower mold 110 adsorbs the pulp in the pulp solution tank and rises above the water surface to perform dehydration.

Subsequently, as shown in FIG. 2C, the slider 230 is reversed by the transfer mechanism (right side in the drawing), at which time the shower 231 and the spray 233 operate, and the water and the coating agent are lowered. Sprayed on the mold (110). At this time, the pulp solution residue remaining on the edge of the first lower mold 110 is removed by the operation of the shower 231, and after a predetermined time, the spray 233 is operated to coat the coating agent with the first lower mold ( 110 is sprayed on the upper side.

In addition, when the slider 230 moves backward (rightwardly in the drawing), the slider 230 is already finished and placed on the upper plate 235 (in the process of FIG. 2B, the second upper mold 220 is used). Dropping product] is pushed to the right. The product thus pushed is guided to a predetermined place while being pushed by the blowout plate 300.

Subsequently, as shown in FIG. 2D, the first lower mold 110 is raised, and the first upper mold 120 and the second upper mold 220 are lowered together. Accordingly, the first upper mold 120 is coupled to the first lower mold 110, and the second upper mold 220 is coupled to the second lower mold 210, thereby forming a pulp in the container. . That is, heat is applied while the solution remaining in the pulp is removed to form a pulp container between each mold.

Next, as shown in FIG. 2E, the upper molds 120 and 220 rise and the first lower mold 110 descends. At this time, as described above, the pulp container is formed by heat pressurization is moved to the upper state in the state of being adsorbed to the upper mold (120,220) by the adsorption means mounted on the upper mold (120,220).

Next, as shown in FIG. 2F, the pulp solution is again supplied to the first lower mold 110 lowered into the pulp solution reservoir 101 so that the pulp is adsorbed to the mold and the excess pulp solution is discharged. Then, as shown in Fig. 2G, the slider 230 is transferred again, and the semi-finished product containers adsorbed to the upper molds drop downward. Thereafter, as shown in FIG. 2H, the slider 230 moves backward and performs the same operation as in FIG. 2C.

The pulp container forming apparatus shown in FIG. 1 shows that the pulp container is completed through the above process shown in FIG.

However, according to the conventional structure as described above, the following disadvantages are pointed out.

In order to clean the edge portion of the pulp solution, a shower is provided at the lower or one end (front end) of the slider. Therefore, in order to remove the pulp adhered to the outer peripheral upper surface of the lower mold by using the shower, the slider must be operated. However, as can be seen in the above-described process, the slider reciprocates only once in the production process of the pulp container, and thus the operation is very limited. This point can be said that the finishing treatment of the edge portion of the pulp container is not sufficiently performed because the shower device substantially interlocks with the slider.

And Figure 3 shows a schematic configuration of a conventional pulp container forming apparatus disclosed in the registration publication of the Republic of Korea Utility Model Registration No. 20-0210142.

In this conventional technique, the pulp container is formed in three stages by three upper molds 5, 5a, 5b and three lower molds 2, 3, 4. That is, the upper upper part of the pulp solution reservoir 13 is configured such that the first upper mold 5 can be lowered by the hydraulic cylinder, and the second upper mold 5a and the third upper mold 5b are sequentially next to each other. ) Is configured to move up and down by hydraulic cylinder.

In the pulp solution reservoir 13, the first lower mold 2 is configured to be lowered, and the second lower mold 3 and the third lower mold 4 are sequentially installed next to the pulp solution storage tank 13. In addition, the second lower mold 3 and the third lower mold 4 are installed to advance back and forth by a predetermined distance by the slider 10, and the slider 10 is substantially the same as the conventional configuration described above. Do.

In such a conventional configuration, the slider 10 is configured such that the pulp container can be molded in three stages while advancing the second lower mold 3 and the third lower mold 4 back and forth. The practical process can be said to be almost equivalent to that described above.

However, also in such a conventional apparatus, the same problem as mentioned above is raised.

The present invention is to solve the above-mentioned disadvantages, to provide a pulp container manufacturing apparatus configured to more reliably remove the residue of the pulp solution on the outer peripheral upper surface of the lower mold.

According to the present invention for achieving the above object, in the pulp container forming apparatus having a plurality of molding parts each having a lower mold and an upper mold, the pulp container is completed by passing through the adjacent molding part in sequence, the molding The first mold includes a first lower mold installed in the pulp solution storage tank so as to elevate the upper and lower portions thereof, and a first upper mold installed in the upper portion so as to be combined with the first lower mold. A wealth; A washing device installed on an upper portion of the primary molded part pulp solution reservoir and including a shower capable of spraying water into the first lower mold, and a driving means for linearly reciprocating the shower in a predetermined direction. It is done.

According to an embodiment, the molding unit; The primary molding part described above; A slider capable of reciprocating back and forth in the upper and lower directions of the first lower mold by advancing, a second lower mold installed on the upper portion of the slider, and a second lower mold so as to be combined with the second lower mold to move up and down The secondary molding part is configured to include the second upper mold to be installed.

The slider may be configured to perform a linear reciprocating motion forward and backward between the primary molding part and the secondary molding part, and the shower unit may perform a linear reciprocating motion toward the front and rear sides.

The drive means may be configured by, for example, a hydraulic or pneumatic cylinder, or may use a lead screw.

Next, the present invention will be described in more detail with reference to the embodiments shown in the drawings.

In the following description of the present invention, the same components as in the prior art will be described with the same reference numerals.

4 and 5 show a schematic configuration of the pulp container forming apparatus according to the present invention. As shown in the drawing, the pulp container forming apparatus according to the present invention comprises a primary molding portion 100 and a secondary molding portion 200. Since the configurations of the primary molding unit 100 and the secondary molding unit 200 are the same as those mentioned in the related art, a detailed description thereof will be omitted and will be briefly described.

The primary molding unit 100 is supplied to the pulp solution by being immersed in the pulp solution reservoir 101, and the first lower mold 110 movable upwardly and the first upper mold 120 configured to be movable up and down. Include. The first upper mold 120 and the first lower mold 110 are configured to be raised or lowered by lifting devices 130 and 132, such as pneumatic or hydraulic cylinders, respectively.

In addition, the secondary molding part 200 is installed on the upper surface of the second upper mold 220 which can be raised and lowered by the lifting device 232 such as a hydraulic cylinder, and the slider 230 which moves forward and backward in the left and right directions on the drawing. It is configured to include a second lower mold (210).

The configuration so far is substantially the same as the conventional configuration. A characteristic of the present invention is that after the pulp solution is supplied to the first lower mold 110, the pulp solution residue remains on the outer periphery of the upper surface of the first lower mold 110 so that the edge of the container becomes dirty when the container is completed. It can be said that the washing machine can remove the. In other words, when the pulp container is molded with the pulp solution residue, burr is generated on the outer periphery of the pulp container, which requires a separate post treatment.

According to the present invention, the washing device 400 independent of the slider 230 is provided at a position corresponding to the upper portion of the first lower mold 110. The washing apparatus 400 of the present invention is provided independently at the front side of the first lower mold 110. Therefore, the washing apparatus 400 of the present invention can operate independently of the slider 230 and can sufficiently flow the pulp residue on the upper surface of the first lower mold 110.

Referring to Figure 5, it will be described in more detail with respect to the washing device (400). In FIG. 5, in order to more clearly illustrate the gist of the present invention, illustrations of the respective molds and supporting structures of the molds of the primary molding part 100 and the secondary molding part 200 are omitted.

Referring to the plan view shown in FIG. 5, the washing apparatus 400 includes a shower 402 and driving means 404 for reciprocating the forward and backward movements of the shower 402. The washing device 400 is provided on the frame 320. That is, in the present invention, it can be seen that the slider 230 is configured to perform the washing while moving in the forward and backward directions on the drawing independently of the slider 230 in the left and right directions.

And the said slider 230 is comprised so that it may move back and forth (reverse left and right reciprocating on a plan view) by the drive device 230A, such as a hydraulic or pneumatic cylinder, for example. Here, the slider 230 and the shower 402 are installed independently of each other, and are configured to perform linear motion in substantially different directions. That is, in the illustrated embodiment, when the linear movement direction of the slider 230 is referred to as the left and right direction with reference to the drawings, the linear movement direction of the shower 402 is to perform the linear movement in the front and rear directions with respect to the left and right directions. do.

That is, the slider 230 is installed to perform forward and backward in the left and right directions on the drawing, the shower 402 is configured to perform a linear reciprocating motion in the vertical direction in FIG. Therefore, the shower 402 is the upper portion of the first lower mold 110 is installed in the pulp solution reservoir 101 at any time as desired by the operator within the temporal and spatial range where mechanical interference with the slider 230 does not occur. Water may be sprayed on to remove residues from the pulp solution. For example, it can be seen that the pulp solution residue is more completely washed out from the upper surface of the lower mold by driving the shower 402 several times within the range where the interference with the slider 230 does not occur. have.

The driving means 404 for linearly reciprocating the shower 402 may use, for example, a hydraulic or pneumatic cylinder having a predetermined stroke. As another embodiment of the drive means, consisting of a chain and a pair of sprockets for driving while supporting the chain, and by forward and reverse rotation, the shower head 402 connected to the chain in a certain direction It is also possible to configure a straight reciprocating motion. Alternatively, the driving means 404 may be configured as a lead screw.

4 and 5, the guide rail 405 is provided at the end of the shower 402 in order to guide the accurate linear movement of the mall shower 402. The guide rail 405 is for guiding the correct linear motion by supporting the end of the shower 402 having a predetermined length. In a specific embodiment, the roller 402a is rotatably installed at the end of the shower 402, and the roller 402a is configured to move while being in contact with the upper surface of the guide rail 405. At this time, by forming a groove on the upper surface of the guide rail 405, it may be configured to be rolled in a state where the roller 402a is more accurately seated.

In the present invention having the configuration as described above, the driving process of the mold and the slider except for the washing device 400 is the same as described above. And the washing apparatus 400 according to the present invention, the first lower mold 110 is moved upward in the state that the pulp solution is supplied on the first lower mold 110 and the first upper mold 120 and Prior to the first coupling, the outer peripheral surface of the first lower mold 110 may be sprayed with water.

When water is sprayed from the shower 402 of the washing device 400, the pulp solution residue on the upper surface of the edge portion of the first lower mold 110 is washed off. Accordingly, the residue remaining on the upper surface of the first lower mold 110 may be completely removed, and the edge portion of the pulp container may be manufactured in a clean state. The water sprayed from the shower 402 may be discharged downward through the lower mold, and the configuration of forming a plurality of water holes in the lower mold is substantially known. Therefore, when water is sprayed by the shower 402, the pulp solution residue on the upper surface of the lower mold is washed away into (or out of) the lower mold. And inside the lower mold, the hole formed in the lower mold exits the lower mold like drainage of the pulp solution.

Next, another embodiment of the present invention will be described with reference to FIG. 6. The embodiment described above is an embodiment embodied in a pulp container forming apparatus composed of a primary molding part 100 and a secondary molding part 200 having substantially a pair of upper molds and lower molds, respectively. The pulp container forming apparatus in which the pulp container is completed through a three-step process consisting of three molding parts is an embodiment. The same components as the above-described embodiments will be described with the same reference numerals.

The pulp container forming apparatus according to the present embodiment further includes a tertiary molding unit 300 in addition to the primary molding unit 100 and the secondary molding unit 200 described above. The tertiary molding part 300 may include, for example, a third upper mold 320 that is lowered by a hydraulic cylinder 332, and a third lower mold 310 that meshes with the third upper mold 320. It is configured to include.

In addition, the third lower mold 310 is installed on the same slider 230 as the second lower mold 210 and linearly reciprocates in a horizontal direction in a horizontal direction in a horizontal direction by a driving means such as a hydraulic cylinder (not shown). Will be performed. That is, in the present embodiment, the second lower mold 210 and the third lower mold 310 are moved left and right by one slider 230, respectively, and the first upper mold 120 and the second upper mold are respectively moved. It is possible to move to the lower position of the mold (220).

Therefore, the pulp container forming apparatus of the present embodiment, in the above-described embodiment, can be said to further add a separate third molding portion, and further comprises a third upper mold 320 and a third lower mold 310. By adding it, it can be said that the drying step by heating and pressurizing the pulp container is further added.

And look at the molding process of the pulp container in this embodiment based on one container, the first lower mold 110-the first upper mold 120-the second lower mold 210-the second upper mold 220 )-Third lower mold 310-Completed by sequentially passing through the third upper mold (320). And while the pulp container is made in the same order as described above, the conveying is by the slider 230 and the suction means built in each mold is the same as described above.

Also in the present embodiment, the upper portion of the pulp solution reservoir 101, the shower 402 for washing off the pulp solution residue on the upper surface of the first lower mold by spraying water on the first lower mold, and the shower A washing device 400 is provided, which is constituted by drive means 404 for reciprocating forward and backward movement of the 402 in the front-rear direction.

The washing apparatus 400 applied to this embodiment has the same configuration and operation as those shown in Figs. 4 and 5, and the construction and operation of the washing apparatus 400 are the same as described above, so it will be described. Will be omitted.

As described above, according to the present invention, it can be seen that the basic technical idea is to install the washing device 400 mounted separately from the slider 230 and operating independently of the pulp solution reservoir 101. . In addition, within the technical range of operating separately from the slider 230, it is obvious that many other modifications are possible to the configuration and operation of the washing apparatus 400.

According to the present invention as described above, it can be seen that the washing device 400 that is installed and operated separately from the slider 230 is implemented. Therefore, the washing apparatus can operate independently from the slider, and the pulp solution residue is expected to be sufficiently washed off from the upper surface of the first lower mold. And by using the conventional spray spray device for coating, it is possible to automate the surface coating of the pulp container during thermocompression molding.

Claims (8)

In the pulp container forming apparatus having a lower mold and an upper mold, respectively, and a plurality of molding parts in which the pulp container is completed by sequentially passing adjacent molding parts, The molding part 1 includes a first lower mold installed in a pulp solution storage tank so as to move up and down, and a first upper mold installed in an upper and lower form so as to be coupled to the first lower mold. A car forming part; A slider capable of reciprocating back and forth in the upper and lower directions of the first lower mold by advancing, a second lower mold installed on the upper portion of the slider, and a second lower mold so as to be combined with the second lower mold to move up and down A secondary molding part 200 including a second upper mold to be installed; And Washing apparatus 400 is installed on the upper portion of the primary molded pulp storage tank, including a shower capable of spraying water to the first lower mold, and a driving means for linearly reciprocating the shower in a predetermined direction. Is configured; The slider is a pulp container forming apparatus, characterized in that for performing a linear reciprocating motion forward and backward between the primary molding portion and the secondary molding portion, the shower performs a linear reciprocating motion to the side with respect to the front and rear. delete delete The pulp container forming apparatus according to claim 1, wherein the driving means comprises a hydraulic or pneumatic cylinder. The pulp container forming apparatus according to claim 1, wherein the driving means comprises a chain to which the shower head is connected, and a pair of sprockets to drive the chain. The pulp container forming apparatus according to claim 1, wherein the driving means is configured using a lead screw. According to claim 1, Pulp container molding apparatus further comprises a guide means for guiding the reciprocating motion while supporting the end of the shower from below. The method of claim 7, wherein the guide means, And a guide rail installed along the reciprocating direction of the shower at the lower end of the shower head, and a roller rotatably installed at the end of the shower to roll-contact the upper surface of the guide rail.

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