KR100604724B1 - The making device making method besides A rotary hoijunsig pulp sunghyeongpum - Google Patents

Abstract

The present invention minimizes the deformation of the pulp products to be molded at the same time to shorten the process time and productivity by molding more accurately and completely when forming pulp molded products such as egg plate, disposable lunch box, food container, product packaging buffer, etc. In addition, the present invention relates to a new molding production method and apparatus for maintaining a smoother and cleaner surface of a product to further increase the value of commerciality.

That is, at one end of the pulp product forming apparatus 10 for forming the shape of the pulp product to be molded into a liquid pulp material, and the molding molded in the pulp product forming apparatus 10 is supplied to one side of the turning step by step turning The rotary drying device 20 is pressurized and dried while being installed, and at one end of the rotary drying device, a molded product discharging device 30 for easily discharging the dried molding and then moving to a required place is installed. The molding drying step is the drying phase, the lower mold 1, 2, 3, 4 (23, 24, 25, 26, 23a, 24a, 25a, which is applied to a certain heat in a state in which the molding (P) to be dried is pressed The upper and lower base plates 21 and 22 are separately installed at a constant isotropic angle 26a) to pressurize and dry while rotating the rotary shafts at a predetermined angle about the center rotation shaft 28.

Pulp molding machine, rotary drying machine, drying bed, lower mold, discharge device, rotary

Description

Rotary rotary pulp molded article manufacturing apparatus and its manufacturing method {The making device making method besides A rotary hoijunsig pulp sunghyeongpum}                                               

1 is a front view, side view, plan view of a conventional pulp molded article manufacturing apparatus

2 is a structural diagram of the pulp molded article manufacturing apparatus presented in the present invention

Figure 3 is a partial structural view of the molded article molding apparatus 10 presented in the present invention

4 is a partial structural diagram extracting the molded product discharge device 30 presented in the present invention

        Explanation of symbols used in the main part of the drawing

10: Molding apparatus for pulp products 11,11a: Upper and lower molds for molding

13,27,33: operating cylinder 14: guide rail

20: Rotary rotary drying machine 21, 22: Upper and lower round base plate

23: drying mold 1 23a: drying mold 1

24: drying mold 2 24a: drying mold 2

25: drying mold 3 25a: drying mold 3

26: upper mold for drying 4 26a: lower mold for drying 4

28: rotating shaft 30: molding discharge device

31: Slide discharge plate 32: Conveyor for transport

33: electric device 34: hydraulic / pneumatic device

35: Air and vacuum device Y: Pulp material

P: molding

The present invention relates to a pulp molded article manufacturing apparatus and a method for manufacturing the same, more specifically, to mold, pulp molded products such as egg plate, disposable lunch box, food container, product packaging buffer, etc. more quickly, accurately and completely molded, dried prior to Compared to the above, the process time can be reduced to 1/2 so that the productivity of the pulp products can be minimized by pressing and drying in a single pocket, and the surface of the product is smoother. The present invention relates to a new molding production method and apparatus for improving the value of a product by maintaining a clean state and improving the strength of the product.

Unlike styropol and plastics, which are considered environmental pollutants due to their non-degradable properties, pulp molded products are environmentally friendly and provide eggs, disposable lunch boxes, food containers, products made mainly from pulp materials that provide the additional effects of waste recycling. Such products are packaging containers and cushioning materials.

Such pulp molded products that are both environmentally friendly and have a resource recycling effect have been selected as incentives in the environmental pollution prevention and resource recycling business, which is currently being actively promoted as a national project, and the demand has recently increased.

However, the existing pulp product molding apparatus used to manufacture such pulp products is a mold for drying the molding to dry in the molding drying process after the first molding process to make the initial mold of the product to be molded as shown in Figure 1 It takes extremely inefficient methods such as several times of pressing, separating, moving, and transferring, and it takes a lot of time unnecessarily. As a result, wrinkles and other scratches are generated on the surface of the finished molded product. It was not smooth and rough, which resulted in high defect rate and poor marketability.

Hereinafter, the conventional pulp device will be described in more detail.

That is, in the conventional pulp product forming apparatus, three upper molds 110 having a predetermined air suction force and a first upper mold 110, a second upper mold 120, and a third upper mold ( 130 and the first lower mold 110a, the second lower mold 120a, and the third lower mold 130a corresponding to the upper mold are formed below the upper mold 110, 120, and 130, respectively. Each of the lower molds 110a, 120a, and 130a may be provided, and the first lower mold 110a may be immersed in a pulp material in a fluid state to perform molding.

The second lower mold 120a and the third lower mold 130a may be flown at a predetermined interval back and forth within the lower rail 200 by the first upper mold 110 and the first lower mold 110a. After the operation is performed, the molded product adsorbed to the upper mold 110 is operated between the second lower mold 120a and the second upper mold 120 and the second lower mold 120a, and then the second prize. Molded products adsorbed to the mold 120 is configured to be delivered to each of the third lower mold 130a step by step.

As shown in FIG. 2, the conventional molding apparatus configured as described above firstly allows only pulp material crystals having a certain moisture in the liquid pulp material to be seated on the lower mold 110a in a fresh water in the liquid pulp material. After that, the first upper mold 110 having the heater heating wire is pressed thereon to form an initial shape of the molding to be molded, and at the same time, the first upper mold 110 rises in a state in which the molding is sucked, Molding pressing step)

At the same time as the first upper mold 110 is raised, the second lower mold 120a moves to the lower position of the first upper mold 110, and then a molding adsorbed to the upper mold is received. Return to the lower position of the upper mold 120. At this time, the second upper mold 120 having the heater heating wire is operated to descend, and the molded article placed in the second lower mold 120a is pressed again to be first dried. (First drying step)

The first dried mold is again raised in the state of being adsorbed to the second upper mold 120, and the second lower mold 130a is moved to the lower position of the second upper mold 120 to absorb the second upper mold. After receiving the molded product adsorbed to the 120, and then moved to the lower position of the third upper mold 130 again, the molded product seated on the third lower mold (130a) with the heater heating wire is pressed again to the secondary Drying is carried out. (2nd drying step)

In this way, the molded product that has completed the pulp molding compression molding step and the primary drying and secondary drying steps is discharged by the rear discharge device 140 to complete the final process.

As described above, the conventional molding apparatus performs a plurality of operations for pressing, separating, moving, and transferring moldings to be dried by upper and lower molds during the first and second drying steps from the pulp molding compression molding step as described above. In addition, many operations are performed, such as a turn, and in particular, since a single molded product can be produced only when the preceding process (molding process, drying process, discharge process) is completed, unnecessary waste time increases and productivity decreases, and production time This takes a lot of trouble.

In addition, the surface roughness of the product is poor due to the transfer, movement, and compression of the molding between the molds for the pulp molding many times. There is a problem that the value as a commercial property, such as rough, wrinkles are generated.

Therefore, the present invention was devised to eliminate the problems as described above, the operation of loading (compression and separation, transfer, transfer, etc.) of unnecessary drying device in about 12 seconds of drying time required for drying basically one pulp molded article manufacturing Unlike the time added, which takes more than 20 seconds, it is possible to simultaneously press / dry into one pocket without loading the pulp molded parts, so the basic drying time required for the pressing / drying is about 12 seconds. Molding, drying, and draining), which not only saves manufacturing time but also increases its output by about 2.5 times, greatly contributing to productivity improvement, and furthermore, makes the surface of pulp molded products produced by perfect press / drying more smooth. Of new techniques to remove fundamental defects and improve product quality. The present invention has been completed as a technical problem with a focus on providing a method for producing a pulp molded article.

In order to achieve the above technical problem, the present invention will be described in detail with reference to the accompanying drawings.

The present invention, as shown in Figure 3 is installed at one end of the pulp product forming apparatus 10 for forming the shape of the pulp product to be molded with a liquid pulp material,

As shown in FIG. 2, a rotary compacting and drying device is provided on one side of which the molded product is supplied from the pulp product forming apparatus 10 and dried while turning the molded product in a pressurized form in a pocket. 20) is installed,

The outer end of the rotary crimping and drying apparatus is provided with a molded article discharging device 30 for easily discharging the dried molded product and then moving to a required place.

The pulp product forming apparatus 10 is provided with a lower mold 11a for forming a fresh water in the liquid pulp material on the lower side, and a molding prize for pressing and acting against the molding lower mold 11a on the upper side thereof. The mold 11 is installed, but the upper mold 11 for forming is configured to be operated up and down by the upper air cylinder 13, and also moves along a guide rail 14 before and after a predetermined width. By configuring this to be possible,

By the operation between the upper and lower molds 11 and 11a for forming, a basic shape of the product P to be molded can be made, and the formed molded product P can be easily used in the rotary drying apparatus 20 which is a post-process. Can be supplied.

And the rotary crimping and drying apparatus 20 is provided with upper and lower circular base plates (21, 22), respectively, capable of simultaneously rotating at a predetermined angle about the center of the rotation axis (28),

On the upper surface of the lower base plate 22, one or more drying lower molds 1, 2, 3, and 4 (23a, 24a, 25a, and 26a), each having a heater heating wire, are mounted at equal angles. The bottom surface of the upper base plate 21 corresponding to the circular base plate 22 corresponds to the lower die 1, 2, 3, 4 (23a, 24a, 25a, 26a) on the lower plate base plate 22. By mounting one or more upper and lower molds 1, 2, 3, 4 (23, 24, 25, 26), each of which has a heater heating wire therein and can be operated at regular intervals by the operating cylinder 27,

One or more upper and lower molds 1, 2, 3, and 4 (23, 23) arranged at regular equivalence on the upper and lower circular base plates 21 and 22 to form the molded product P supplied from the pulp product molding apparatus 10. 24, 25, 26, 23a, 24a, 25a, 26a) while being continuously fed, the rotary molding can be compressed and dried until the pulp molding is supplied and discharged.

This can significantly shorten the process time due to the continuous automated supply method that does not generate any loss time of the process while performing a sufficient drying process required for molding the molding.

In addition, the upper and lower molds 1, 2, 3, and 4 (23, 24, 25, 26, 23a, 24a, 25a, 26a) for drying are formed by pressing and drying while simultaneously rotating the rotary molding. The upper and lower molds 1, 2, 3, and 4 for drying (23, 24, 25, 26, 23a, 24a, 25a, 26a) can be dried while being rotated to the position of the discharge device 30 in a compressed state. When drying together, the upper and lower molds 1, 2, 3, 4 (23, 24, 25, 26, 23a, 24a, 25a, 26a) are not separated, moved, transferred or compressed. As the process time can be shortened, and the anxiety factor of the corresponding position difference between upper and lower molds caused by unnecessary operation is fundamentally eliminated, there is no damage to the molding surface (wrinkle, roughness, etc.) resulting from the deviation. A smooth surface state and a strong textured molding P can be provided at all times.

If, in the future, the discharge efficiency of the steam and the need for ventilation with the outside air in the future, the upper and lower molds 1, 2, 3, 4 for drying (23, 24, 25, 26, 23a, 24a, 25a, 26a) Since only one simple up / down opening / closing operation can be simplified, the surface state of the molded product can be maintained to a degree that cannot be compared with the conventional art.

In addition, the lower one side of the rotary crimping and drying apparatus 20, the drive motor (hydraulic, pneumatic, electric, etc.) and the electric device for the necessary electrical supply to rotate the upper and lower circular base plate (21, 22) at the same time rotary (33) and hydraulic / pneumatic device 34 for cylinder operation and operation of drying molds 1, 2, 3, 4 (23, 24, 25, 26, 23a, 24a, 25a, 26a) It is a matter of course that the air and the vacuum device 35 necessary for the air spray for removal and the air suction required for adsorbing the molded article) must be installed respectively (not shown).

On the other hand, the molded article discharging device 30 as a means to be easily discharged to the external predetermined position with respect to the molded product (P) is dried through the rotary drying device 20,

A slide discharge plate 31 which is operated before and after a predetermined length by a drive of a servo motor or a cylinder (not shown) and which can be operated at a predetermined height up and down is provided, and at the bottom of one side of the discharge plate 31 is provided. Install the conveyor 32, but the bottom surface of the discharge plate 31 is equipped with an air or hydraulic actuating cylinder 33 to tilt the discharge plate to a predetermined angle to remove the molding on the discharge plate 31 By being configured to be easily delivered to the conveyor 32,

Through the rotary crimping and drying apparatus 30, the molded product discharged after completion of drying can be easily and quickly transferred to a predetermined position.

Looking at the specific action and operation state as follows.

When the inside of the mold lower mold 11a in the fresh water in the liquid pulp material (Y) in the pulp product molding apparatus is sucked in a vacuum, only crystals containing a certain moisture remain seated on the mold mold 11a. The rest of the water falls down. At this time, by pressing the upper mold 11 for forming downwards to compress the lower mold 11a, a predetermined product shape corresponding to the mold shape is created.

The molded product P thus formed is slide-advanced in the state of being adsorbed to the upper mold for molding, and the molds 1, 2, 3, and 4 for drying the rotary pressing and drying apparatus 20 (23a, 24a, 25a, 26a). It is transferred to the lower mold 1 (23a) located on one side of the pulp product molding apparatus 10. At this time, the molded article adsorbed to the upper mold 11 of the molding apparatus 10 is ejected by pushing with air, while the lower mold 1 23a sucks (vacuums) the molded article and is placed therein.

When the molding P is transferred to the drying lower mold 1 (23a), the upper mold 11 for the molding is moved backward to slide to return to the initial molding process, while the lower mold 23a is positioned on the lower mold 23a. Drying of the upper mold 1 (23) is pressed down and at the same time as the rotary state at a constant angle equal to the discharge position in the compressed state to perform a drying process.

When the upper and lower molds 1 (23, 23a) for drying are moved by one step, the upper and lower molds 4 (26, 26a), which are located on the discharge device side, are placed at the molding supply position, that is, the pulp product forming apparatus 10. By being moved to one side, the molding P is continuously formed simultaneously in the molding, feeding, pressing / low water, and discharging processes in the same operation as described above.

That is, for example, the drying phase, lower mold 2 (24, 24a) and the drying phase when the lower mold 1 (23, 23a) is a step of receiving the molding from the molding apparatus at the molding supply position The lower mold 3 (25, 25a) is to perform a drying process, the drying phase, the lower mold 4 (26, 26a) is to perform the entire process simultaneously, such as performing a discharge step, of course, Since the process can be continuously performed according to the rotary rotation of the upper and lower base plates 21 and 22 of the drying apparatus 20, a faster automated drying operation is possible without generating a process loss.

And the above-mentioned upper and lower molds 1, 2, 3, 4 for drying (23, 24, 25, 26, 23a, 24a, 25a, 26a) in the present application is to be arranged at a predetermined equal angle in four places, but this is one As an embodiment of the present invention, in consideration of the size and drying efficiency of the mold, and more than four places can be installed and used, of course.

Such a molding manufacturing apparatus of the present invention can be seen that the pulp product molding step, the molding supply step, the molding drying step, the molding discharge step, respectively, and all the processes in the process is made continuously and simultaneously, In addition, it can be seen that there is no obstacle that impairs the surface state of the molded product (P) during the drying process, and it is possible to obtain an absolute increase in the production yield due to a shorter process time compared to the conventional molding manufacturing apparatus. It is an excellent invention that can greatly contribute to the activation of pulp products, which are eco-friendly and national incentives with resource recycling aspects.

The pulp molded article manufacturing apparatus and the manufacturing method of the present invention as described in detail above take a crimping rotary rotary method that can be carried out in a continuous process to increase the productivity because the pulp products of various forms can be easily and quickly formed molding Not only can it contribute greatly, but it can be maintained more smoothly on the surface state of pulp products, which can contribute greatly to the quality improvement of the product.

Claims (5)

A lower mold 11a for fresh water in a liquid pulp material is provided on the lower side, and an upper mold 11 for pressing and acting against the molding lower mold 11a is installed on the upper side thereof. The upper mold 11 is configured to be operated up and down by the upper air cylinder 13, and is also configured to be movable along a guide width 14 before and after a predetermined width, and at one end, it is a liquid pulp material. A pulp product forming apparatus 10 for forming a shape of a pulp product to be molded, On one side there is provided a rotary pressing / drying apparatus 20 for crimping / drying while being rotated step by step by receiving the molded product from the pulp product forming apparatus 10, Pulp molded article manufacturing apparatus, characterized in that each of the outer end of the rotary pressing / drying device is provided with a molded article discharging device 30 for easily discharging the dried molding and then moved to a required place delete The method of claim 1, The rotary crimping / drying apparatus 20 is provided with upper, lower and upper and lower circular base plates 21 and 22 that can be simultaneously rotated at an angle about the center rotation shaft 28, respectively. On the upper surface of the lower base plate 22, one or more drying lower molds 1, 2, 3, and 4 (23a, 24a, 25a, 26a) having heater heater wires are mounted at an equally divided angle. The lower surface of the upper base plate 21 corresponding to the lower base plate 22 corresponds to the lower dies 1, 2, 3, and 4 (23a, 24a, 25a, 26a) on the lower plate base plate 22. One or more upper molds 1, 2, 3, and 4 (23, 24, 25, and 26), each of which is built in a heater heating wire and which can be operated at regular intervals by the cylinder 28, are mounted at an isometric angle, The upper and lower molds 1, 2, 3, 4 (23, 24, 25, 26, 23a, 24a, 25a, 26a) in the state of being mutually compressed in a rotary rotation while simultaneously configured to perform the drying Pulp molded product manufacturing apparatus. The method of claim 1, The molded article discharging device 30 is provided with a slide discharge plate 31 which is operated before and after a predetermined length by a drive of a servo motor or a cylinder and can be operated at a predetermined height up and down, and the discharge plate 31. At one side of the lower end of the conveyor 32 for the transfer; The bottom surface of the discharge plate 31 is equipped with an air cylinder 33 for tilting the discharge plate below a certain angle so that the molding on the discharge plate 31 can be easily transferred to the conveyor 32 A pulp molded article manufacturing apparatus characterized by the above-mentioned. In the pulp molded product manufacturing method consisting of the pulp product molding step, molding supply step, molding drying step, molding discharge step, The molding drying step is to be dried between the drying phases, lower molds 1, 2, 3, 4 (23, 24, 25, 26, 23a, 24a, 25a, 26a) which are separately disposed at a predetermined isometric angle. Pulp molded article manufacturing method characterized in that the rotary by rotating at a predetermined angle about the rotary shaft 28 without moving or transferring between the STAGE in the state of pressing the molded product (P).

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