KR101118149B1 - Manufacturing apparatus and method for pulp mold - Google Patents

Abstract

The present invention relates to a pulp molding production apparatus and method that can be factory automation of the removal, loading, and transport of the pulp molding to reduce labor costs and significantly improve productivity, the pulp molding production apparatus of the present invention is the lower mold (16) A cradle 18 installed on one side to mount the pulp molding 50 in which molding is completed; A lower mold moving means (28) for reciprocating the lower mold (16) laterally; Lower mold movement detecting means (42) for detecting lateral movement of the lower mold (16); The lift 34 is installed to be able to elevate from the side of the lower mold 16 to the upper portion of the holder 18, and the pulp molding 50 on the holder 18 falls downward when the lower mold 16 reciprocates. ; A placement table 36 disposed below the lift 34 and on which a pulp molding 50 dropped by the lift 34 is placed; Drop detection means (44) installed between the lift (34) and the loading rack (36) and detecting that the pulp molding (50) falls onto the loading rack (36); A stock mount moving means (37) for moving the stock pile (36) in the vertical direction according to the detection signal of the drop detecting means (44); And a conveyor 38 installed at the lower portion of the loading stand 36 and moving the loading stand 36 in a horizontal direction. The pulp molding 50 is removed from the lower mold 16, and After the pulp molding 50 is placed in the loaded state by using the conveyor 38, the pulp molding is removed, loaded and transported quickly by a non-stop process. It will proceed, unmanned automated production can be mass-produced and has the effect of greatly reducing the manufacturing cost.

Pulp moldings, upper molds, lower molds, lifts, scrapers, stackers, conveyors

Description

Manufacturing apparatus and method for pulp molding {Manufacturing apparatus and method for pulp mold}

The present invention relates to an apparatus and method for producing pulp moldings, and more particularly, to a new structure that improves product productivity, reduces manufacturing cost, and enables mass production by automating the removal, loading, and transportation of pulp moldings. An apparatus and method for producing pulp moldings.

In general, the packaging equipment molded from the pulp material in the shape of a container is naturally friendly, so that foods such as eggs or fruits can be kept fresh, and used as various packaging equipment such as shock absorbing packaging equipment for electronic products.

[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 molds are arranged so that a plurality of upper molds and lower molds face each other, and each of the molds is arranged so that the molds forming the finished pulp molded product have a plurality of rows from the molds formed by first stacking the pulp material. As the mold of either side of the upper mold and the lower mold is elevated, the upper mold and the lower mold are joined together, and thus the pulp raw material is formed into a primary pulp molding. As the lower mold reciprocates laterally, the primary pulp moldings are moved to the mold side of the neighboring rows to form the final pulp moldings. In each mold, numerous vacuum suction holes are formed to vacuum suck the pulp material or the primary pulp molding and fix the position on the mold by vacuum suction. A heating means is provided at the rear to heat-dry the pulp raw material or the primary pulp molding.

By the way, the conventional pulp molding production apparatus is proceeding by manually removing the pulp molding is completed from the lower mold of the end and transfer it to the loading rack again. As described above, the process of removing and transporting the pulp molding by hand causes an increase in the process cost due to labor cost generation, and a problem in that the productivity is lowered due to the delay of the entire manufacturing process.

The present invention has been proposed in order to solve the above problems, by automating a series of processes of removing, loading and transporting the completed pulp molding to reduce the process cost and greatly shorten the manufacturing process to mass production of pulp molding It is an object of the present invention to provide an apparatus and method for producing pulp moldings that can improve and reduce manufacturing cost.

The pulp molded article manufacturing apparatus of the present invention for achieving the above object is a pulp molded article (50) in the form of a container or packaging device by vacuum suction the pulp raw material (10) and the reservoir tank for storing the pulp raw material (10). In the pulp molding apparatus comprising a plurality of upper mold 14 and the lower mold 16 to be molded into), installed on one side of the lower mold 16, the pulp molding 50 is completed Cradle 18; A lower mold moving means (28) for reciprocating the lower mold (16) laterally; Lower mold movement detecting means (42) for detecting lateral movement of the lower mold (16); The lift 34 is installed to be able to elevate from the side of the lower mold 16 to the upper portion of the holder 18, and the pulp molding 50 on the holder 18 falls downward when the lower mold 16 reciprocates. ; A placement table 36 disposed below the lift 34 and on which a pulp molding 50 dropped by the lift 34 is placed; Drop detection means (44) installed between the lift (34) and the loading rack (36) and detecting that the pulp molding (50) falls onto the loading rack (36); A stock mount moving means (37) for moving the stock pile (36) in the vertical direction according to the detection signal of the drop detecting means (44); And a conveyor 38 installed at the lower portion of the loading stand 36 and moving the loading stand 36 in a horizontal direction.

According to a preferred embodiment, the lower end of the lift 34 is provided with a scraper 35 is caught on the end of the pulp molding 50 mounted on the holder 18 in the lift 34 is lowered.

According to a preferred embodiment, the drop detection means 44 is composed of an optical sensor or an ultrasonic sensor.

According to a more preferred embodiment, when the detection signal of the drop detection means 44 is generated, the stockpile moving means 37 lowers the stockpile 36 by one step.

The pulp molding manufacturing method of the present invention for achieving the above object is a pulp molding manufacturing method for producing a pulp molding 50 using the pulp molding apparatus described above, (a) the lower mold movement detection means 42 If) detects lateral movement of the lower mold 16, lowering the lift 34; (b) when the lower mold 16 returns, raising the lift 34; (c) when the detection signal of the drop detecting means 44 is generated, lowering the stock pile 36 by one step; (d) determining whether the number of detections of the drop detecting means 44 reaches a predetermined number of times; And (e) if it is determined in step (d) that the number of detections of the drop detection means 44 reaches a predetermined number of times, placing the stock holder 36 on the conveyor 38. It is composed.

According to the pulp molding production apparatus and method of the present invention, when the bottom mold is reciprocated in the horizontal direction in the state that the final molding is completed on the holder, the pulp molding on the holder is dropped and loaded on the holder while lifting the lift. By maintaining the stable drop distance by dropping the loading stand step by step according to the detection signal of the drop detection means, and when the loading of a certain quantity is completed, by placing the loading stand on the conveyor, stripping, which is a process after the manufacture of pulp moldings, Accumulation and transportation are carried out in an unmanned automated process, and no labor costs are required, as well as the entire manufacturing process is non-stop, significantly reducing the manufacturing cost and making it easy to mass-produce pulp moldings. .

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

1 to 3 is a block diagram illustrating a step-by-step operation state of the present invention, Figure 4 is a flow chart showing a control flow in the present invention.

First, FIGS. 1 to 3 illustrate an apparatus for forming an egg seat plate as an example of a pulp molding apparatus. As shown, the pulp molding production apparatus of the present invention and the reservoir 12 for storing the pulp raw material 10, and the upper mold 14 and the lower mold 16 and arranged to face each other and have a plurality of rows and , A lift 18 installed on the right side of the lower mold 16 and a post installed upright on the right side of the lower mold 16 to lift, remove, and transport the pulp molding 50 ( 34), the loading base 36, and the conveyor 38. As shown in FIG.

Although not shown, the pulp raw material 10 is supplied to the reservoir 12 from the pulp raw material supply device, and the pulp raw material 10 is maintained at a constant level in the reservoir 12. For example, when the level in the reservoir 12 is lowered as the pulp raw material 10 is used, the pump is operated to supply fresh pulp raw material 10 into the reservoir 12.

In the conventional pulp molded product manufacturing apparatus, the leftmost lower mold is lifted into the reservoir 12 to deposit the pulp raw material 10. The pulp molding production apparatus of the present invention may have such a configuration, but preferably the leftmost lower mold 16a is fixedly installed without being elevated. In such a structure, the use of a hydraulic cylinder can be reduced, and the structure of an apparatus can be simplified. Next, the process of depositing the pulp raw material 10 in the leftmost lower mold 16a is explained.

As shown, the pulp raw material 10 stored in the reservoir 12 is flushed with the reservoir 12 and the reservoir 12 so as to prevent the pulp material 10 from overflowing to the lower mold 16 side of another row and affecting other processes. The leftmost lower mold 16a is preferably disposed below the other lower molds 16.

An air chamber 20 is formed below the lower mold 16a. The air chamber 20 is closed at an upper portion thereof, and has a communication port 22 communicating with the inner space of the reservoir 12 at the lower portion thereof. Compressed air flows into the air chamber 20, as shown by the arrow. When the compressed air flows into the air chamber 20 as described above, the level of the pulp raw material 10 in the reservoir 12 rises while the compressed air is pressurized toward the communication port 22. At this time, the lower mold (16a) is fresh water in the pulp raw material (10).

Then, when the compressed air in the air chamber 20 through the compressed air exhaust pipe 24 as shown, the water level of the pulp raw material 10 is lowered again. At this time, the lower mold 16a is exposed above the water surface of the pulp raw material 10.

As such, when the level of the pulp raw material 10 is raised and lowered using compressed air, the pulp raw material 10 is lowered by the myriad vacuum suction holes (not shown) formed in the lower mold 16a. It is adsorbed on the upper surface of 16a).

The upper mold 14 disposed on the upper surface of the lower mold 16a on which the pulp raw material 10 is adsorbed is lifted by the upper mold moving means 26. Preferably, the upper mold moving means 26 is a hydraulic cylinder, the leftmost upper mold 14 has a longer vertical stroke than the upper mold 14 in the adjacent row, so that the stroke of the hydraulic cylinder should be sufficiently secured. .

The upper mold 14 is lowered to engage with the lower mold 16a, and the heating means 29 embedded in the upper mold 14 are heated to form a primary pulp molding. And the upper mold 14 rises in the state which inhaled the primary pulp molding by the vacuum suction hole.

As shown, in the right side of the die 17 in which the lower molds 16 of the second row and the third row are installed, a holder 18 for temporarily mounting the completed pulp molding 50 is installed. The die 17 is then reciprocated in the horizontal direction by a lower mold moving means 28 (such as a hydraulic cylinder, for example).

Figure 1 shows the position of the lower mold 16 initially, Figure 2 shows a state in which the lower mold 16 is shifted to the left by the hydraulic cylinder, Figure 3 is the lower mold 16 is a hydraulic cylinder It shows the state which shifted to the right by the figure, and shows the removal, loading, and conveying example of the pulp molding 50. FIG. In each figure, the drawing about the primary pulp molding in the shaping | molding process of the left side, and the pulp molding in a shaping | molding process was abbreviate | omitted.

Referring to FIG. 2, it can be seen that the lower mold 16 of the second and third rows is moved to the left by the hydraulic cylinder. In this arrangement, the upper molds 14 descend. Each of the upper molds 14 blows the primary pulp molding into an opposing lower mold 16. At this time, the rightmost upper mold 14 is disposed opposite to the holder 18 as shown, the pulp molding 50 is completed in the rightmost upper mold 14 is dropped onto the holder 18 It is seated.

Referring to FIG. 3, it can be seen that the lower mold 16 is shifted to the right again. In this arrangement, the leftmost upper mold 14 is lowered toward the lower mold 16a on which the pulp raw material 10 is loaded as described above to form a primary pulp molding. The other upper molds 14 are lowered to the oppositely disposed lower mold 16 side, where the lower molds 16 blow the primary pulp molding to the upper mold 14 side, and the upper molds 14 vacuum intake.

At this time, as shown, the cradle 18 mounted on the rightmost side of the die 17 is to come out to the right side, where the removal, loading, conveying process of the pulp molding 50 according to the present invention is in progress. In the following description, the shifting of the die 17 to the right by the lower mold moving means 28 is referred to as " shift shifting, " Reference is made to "return."

As shown, a post 30 is installed on the right side of the apparatus, and on this post 30, an apparatus for automatically performing the removal, loading and transport of the pulp molding 50 is installed.

As shown, a lift 34 is installed above the post 30, and the lift 34 is lifted by lift lift means 32 such as a pneumatic cylinder. Under the lift 34, a loading stand 36 for loading the completed pulp molding 50 is installed, and the loading stand 36 is operated by the loading stand moving means 37. The stockpile moving means 37 is composed of, for example, a pulley and a movable block suspended from the pulley, and the pulley is driven by a step motor or the like. The conveyor 38 for moving the loading stand 36 in the horizontal direction is provided below the loading stand 36.

Preferably, the initial position of the loading stand 36 is located as close as possible to the lift 34. This is to allow the pulp molding 50 dropped by the lift 34 to rest on the loading rack 36.

As shown, the lower mold movement detecting means 42 is installed in the lower portion of the die 17, the lower mold 16 is installed. In an embodiment, the lower mold movement detecting means 42 is a limit switch and detects the lateral movement of the lower mold 16. And, in the middle of the post 30, drop detection means 44 for detecting the fall of the pulp molding 50 is preferably provided between the lift 34 and the loading table 36. In an embodiment, the drop detection means 44 is an optical sensor that optically senses the presence or absence of the pulp molding 50, which may be replaced by other sensor means such as an ultrasonic sensor.

In the device, the operation of the lift elevating means 32 is controlled in accordance with the detection signal of the lower mold movement detecting means 42, and the operation of the loading stand moving means 37 is controlled in accordance with the detection signal of the drop detection means 44. The control unit 40 is installed. The controller 40 has a circuit configuration using an electric element, and in some cases, may include a microcomputer or a microprocessor.

4 is a flowchart illustrating an example of controlling a series of processes of automatically removing, loading and transporting the pulp molding 50 under the control of the controller 40 in the present invention. Referring to this, a description will be given of the pulp molded product removal, loading, transport process in the present invention as follows.

First, as described above, the final pulp molding 50 is molded while the primary pulp molding moves the upper and lower molds step by step. And, the final pulp molding 50 is mounted on the cradle 18 on the right side of the lower mold 16. After the device has started operation, after several manufacturing processes, the pulp molding 50 is placed on the holder 18. Then, the process of removing, loading and transporting the pulp molding is started, and thereafter, the pulp molding 50 is mounted on the holder 18 for each process (every time the reciprocating movement of the lower mold is completed).

The step begins with the lower mold 16 being shifted to the right (ST100). When the lower mold 16 moves to the right as shown by an arrow in FIG. 3, the lower mold movement detecting means 42 detects this, and the controller 40 lowers the lift 34 (ST110). The lift 34 is a means for removing and dropping the pulp molding 50 from the holder 18.

In this case, the lift 34 may have various configurations. For example, a grip mechanism may be provided at the end of the lift 34. In this case, after the lift 34 is lowered to grip the pulp molding 50 on the holder 18, the lower mold 16 may be released to release and drop the grip.

However, in light of the product characteristics of the pulp molding 50, it may be vulnerable to external pressure. Therefore, in the present embodiment, the configuration in which the lift 34 does not grip the pulp molding 50 is selected. As shown in FIG. 3, the end of the lift 34 is provided with a scraper 35 extending downward to meet the specifications of the pulp molding 50. The scraper 35 is a member caught on the end of the pulp molding 50 and does not directly grip the pulp molding 50.

As a next step, the lower mold 16 is returned by the lower mold moving means 28 (ST120). As shown in FIG. 2, the holder 18 is also moved to the left side like the lower mold 16. At this time, since the pulp molding 50 is caught by the scraper 35 of the lift 34, As the holder 18 returns, the pulp molding 50 falls downward (ST130). The fall of the pulp molding 50 is detected by the fall detection means 44. After the one stripping process is finished, the lift 34 is raised for the next stripping process.

The pulp molding 50 is automatically deposited on the lower loading table 36 while falling by the lift 34. As mentioned above, the lift 34 and the loading rack 36 have as short a fall distance as possible. By the way, in the process of the pulp molding 50 is continuously stacked, the pile height may rise to the height of the holder (18). Therefore, in the present invention, by placing the loading stand 36 to an appropriate height for each step, to prevent the process interruption according to the loading height, and to maintain a stable falling distance continuously.

When the detection signal of the fall detection means 44 is generated, the step motor of the loading base moving means 37 rotates one step, and the loading base 36 is moved down by one step (ST140). One step in which the loading base 36 is lowered preferably corresponds to the loading height of one pulp molding 50.

As a next step, the controller 40 determines whether or not the number of falling detection detections of the drop detecting means 44 reaches a predetermined number of times (ST150). Accumulated quantity of the pulp molded product 50 may be determined according to the type of pulp molded product 50, packaging standards, requirements of a buyer or a purchaser, and the like. For example, if the packaging specification is configured to package the pulp molding 50 in which 50 pieces are stacked, the controller 40 determines whether the number of drop detection detections reaches 50 times.

If it is determined that 50 detections have been made in step ST150, the loading rack 36 is placed on the conveyor 38 (ST160). Then, the pulp molding 50 is moved to the conveyor 38 in a state where the pulp molding 50 is placed on the loading rack 36, or after removing the loading rack 36 in a separate process, as shown by a dotted line in FIG. 3. Only 50 can be moved to the conveyor 38. And, although not shown, after one loading rack 36 is placed on the conveyor 38, a new loading rack 36 is automatically supplied to the initial installation height.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible in the technical field of the present invention without departing from the technical spirit of the present invention. It will be clear to those of ordinary knowledge.

1 to 3 is a block diagram illustrating a step-by-step operation state of the present invention

4 is a flowchart showing a control flow of the present invention.

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

10 pulp raw material 12 reservoir

14: upper mold 16, 16a: lower mold

18: cradle 20: air chamber

22: communication port 24: compressed air exhaust pipe

26: upper mold moving means 28: lower mold moving means

30: Post 32: lift lifting means

34: lift 35: scraper

36: enemy yard 37: carriers

38: conveyor 40: control unit

42: lower mold movement detection means 44: drop detection means

50: pulp molding

Claims (5)

A plurality of upper molds 14 and lower molds 16 for storing the pulp raw material 10 and a plurality of upper molds 14 and 16 for vacuum suctioning the pulp raw material 10 into a pulp molded product 50 in the form of a container or a packaging device. In the pulp molded article manufacturing apparatus comprising: A cradle 18 installed on one side of the lower mold 16 to mount a pulp molding 50 in which molding is completed; A lower mold moving means (28) for reciprocating the lower mold (16) laterally; Lower mold movement detecting means (42) for detecting lateral movement of the lower mold (16); The lift 34 is installed to be able to elevate from the side of the lower mold 16 to the upper portion of the holder 18, and the pulp molding 50 on the holder 18 falls downward when the lower mold 16 reciprocates. ; A placement table 36 disposed below the lift 34 and on which a pulp molding 50 dropped by the lift 34 is placed; Drop detection means (44) installed between the lift (34) and the loading rack (36) and detecting that the pulp molding (50) falls onto the loading rack (36); A stock mount moving means (37) for moving the stock pile (36) in the vertical direction according to the detection signal of the drop detecting means (44); And And a conveyor (38) installed at the lower portion of the loading stand (36) and moving the loading stand (36) in a horizontal direction. The method of claim 1, At the lower end of the lift 34 is a pulp molding apparatus, characterized in that the scraper 35 is caught on the end of the pulp molding 50 mounted on the holder 18 in the lift 34 is lowered state is installed. . The method of claim 1, The drop detection means 44 is a pulp molding apparatus characterized in that consisting of an optical sensor or an ultrasonic sensor. The method according to claim 1 or 3, The loading rack moving unit (37) is a pulp molding production apparatus, characterized in that for dropping the loading rack (36) by one step when the detection signal of the drop detection means (44) occurs. In the pulp molded article manufacturing method for producing a pulp molded article 50 using the pulp molded article manufacturing apparatus of claim 1, (a) if the lower mold movement detecting means 42 detects the lateral movement of the lower mold 16, lowering the lift 34; (b) when the lower mold 16 returns, raising the lift 34; (c) when the detection signal of the drop detecting means 44 is generated, lowering the loading table 36 by one step; (d) determining whether the number of detections of the drop detecting means 44 reaches a predetermined number of times; And (e) if it is determined in step (d) that the number of detections of the drop detection means 44 reaches a predetermined number of times, placing the stock holder 36 on the conveyor 38; Pulp molded article manufacturing method characterized in that.

Images