KR20210074084A - Mask sheet 3D folding device for mask pack - Google Patents

Abstract

The present invention relates to a device for stereoscopically folding a mask sheet for a mask pack. The device of the present invention comprises: a sheet transfer unit installed on a support frame to support a mask sheet delivered from the outside and transfer the same horizontally; a Z-axis folding unit for folding the mask sheet supported by the sheet transfer unit for the first time; a Y-axis folding unit for folding the mask sheet again, which is folded by the Z-axis folding unit, wherein the mask sheet is folded for the second time, based on a folding line perpendicular to that of the Z-axis folding unit; and an X-axis folding unit for folding the mask sheet again, which is folded by the Y-axis folding unit for the third time, based on a folding line perpendicular to one of the folding lines of the Z-axis folding unit and the Y-axis folding unit, thereby folding the mask sheet provided by the sheet transfer unit many times to such a size that the mask sheet can be accommodated into a pouch. In accordance with the present invention, the device for stereoscopically folding a mask sheet for a mask pack folds the mask sheet three times in X-, Y-, and Z-axis directions which are perpendicular to one another through a stereoscopic folding process, thereby minimizing the area of the mask sheet to prevent the mask sheet from being caught by the entrance portion of the pouch when the mask sheet is inserted into the pouch mask sheet. Therefore, inserting the mask sheet can be more rapidly performed.

Description

Mask sheet 3D folding device for mask pack}

The present invention relates to a mask sheet three-dimensional folding apparatus, and more particularly, to a mask sheet three-dimensional folding apparatus for a mask pack that folds a provided mask sheet in three mutually orthogonal X, Y, and Z directions.

Various ingredients and methods of products are being used to remove dead skin cells or to shrink pores and remove blemishes to improve skin condition and prevent aging. Among them, cosmetic packs are mainly aimed at soothing and improving the condition of the skin. It is a method of applying a functional cosmetic liquid (eg, essence) itself to the skin including the face, or covering the skin with a sheet paper containing the cosmetic liquid. applies.

As is known, cosmetic packs have various effects depending on the characteristics of ingredients contained in the cosmetic liquid, for example, remove sebum and impurities in the pores to soften the skin, supply various nutrients and moisture, reduce pores, soothe the skin, It functions to balance the skin by enhancing elasticity. For this reason, not only women who are interested in skin beauty, but also young men in recent years, it is easy to see that they want to take care of their skin using cosmetic packs.

There are several types of skin care products related to beauty packs, and among them, there are mask packs that you can use by yourself without the help of others. The mask pack is a sealed pouch containing a mask sheet and a cosmetic liquid, and the user opens the pouch and then takes out the sheet and spreads it on the face. The mask sheet is a nonwoven fabric having an approximate shape that can cover the face, and it absorbs the cosmetic liquid in a folded state inside the pouch.

The production of the cosmetic pack includes the process of folding the cut sheet and inserting it into the pouch first, injecting the cosmetic liquid into the pouch into which the sheet is inserted, and then sealing the pouch. As a prior art for folding a sheet to a size that can be inserted into a pouch, Korean Patent Publication No. 10-1719603 (automatic mask pack acquisition device) has been disclosed.

The disclosed acquisition device is a feeder on which a plurality of sheets are loaded, an automatic sheet supply unit that separates and supplies the sheets loaded on the feeder into sheets, a rolling unit that winds the sheet supplied by the automatic sheet supply unit in a roll form, a rolling unit A support plate on which a sheet wound in a roll shape is seated by means of a support plate, a folding guide part including a through hole formed to penetrate the support plate in the vertical direction, and pressing the sheet seated on the support plate in a downward direction, but the sheet is folded around the pressing point and a folding input induction unit for introducing the sheet into the inside of the packaging material positioned below the through hole while inducing the movement of the sheet to pass through the through hole.

However, in the conventional mask pack acquisition device described above, since the pre-cut and loaded sheets must be supplied separately, the overall production speed is slow, and in some cases, two sheets can be transferred at once due to static electricity between the sheets. have

In addition, since the rolled sheet under the action of negative pressure is placed on the support plate and then folded by pressing only the center portion, there is a problem that the rolled sheet may be unwound while transporting the rolled sheet or at the moment of folding.

Domestic Patent Publication No. 10-1719603 (Automatic mask pack acquisition device) Domestic Patent Publication No. 10-1719608 (Mask Pack Acquisition Device)

The present invention was created to solve the above problems, and since the mask sheet is folded in a mutually orthogonal direction, the area of the mask sheet is minimized. An object of the present invention is to provide a mask sheet three-dimensional folding device for possible mask packs.

A mask sheet three-dimensional folding apparatus for a mask pack of the present invention as a means of solving the problem for achieving the above object, the support frame; a sheet transport unit installed on the support frame and horizontally transporting the mask sheet transferred from the outside; A Z-folding unit that folds the mask sheet supplied through the sheet conveying unit to a size that can be accommodated in a pouch, and primarily folds the mask sheet supported by the sheet conveying unit; a Y-folding part that folds the mask sheet folded by the Z-folding part again, and secondarily folds it based on a folding line orthogonal to the Z-folding part's folding line; The mask sheet folded by the Y-folding part is folded once again, and an X-folding part is included for thirdly folding the Z-folding part or the Y-folding part's folding line based on a folding line orthogonal to any one of the folding lines.

In addition, the sheet transfer unit; a first conveyor for horizontally transporting the mask sheet, and a second conveyor in a straight line with the first conveyor and spaced apart from the first conveyor, wherein the Z-folding unit; A first servo actuator installed on the upper part of the sheet transfer unit, a Z blade that vertically moves up and down through a gap between the first conveyor and the second conveyor by the first servo actuator, is installed in the vertical direction of the lower part of the Z blade and a first grounding pocket having a primary folding slit into which the Z-blade in a lowered state is inserted, the Y-folding unit; A second servo actuator installed under the sheet transport unit, a Y blade that moves horizontally and linearly reciprocates by the second servo actuator, advances to the first grounding pocket, and passes through the primary folding slit, the primary folding slit and a second grounding pocket having a secondary folding slit into which the passed Y-blade is inserted, wherein the X-folding unit; A third servo actuator installed on the lower part of the sheet transfer unit, a horizontal linear reciprocating movement by the third servo actuator, moving in a direction orthogonal to the Y blade, advancing toward the secondary grounding pocket and passing through the secondary folding slit Equipped with X blades.

In addition, the Z blade, Y blade, and X blade are plate-shaped members having a certain thickness, and their respective movement directions are orthogonal to each other, and the Z blade is lowered when the mask sheet spans the first conveyor and the second conveyor. Then, fold the mask sheet in half and put it in the primary folding slit and then raise it to its original position, and the Y blade, after the mask sheet is inserted in the primary folding slit, passes through the primary folding slit to insert the mask sheet a second time. After being folded and inserted into the secondary folding slit of the second folding pocket, it is retracted and returned to its original position, and the X blade, after the mask sheet is inserted into the secondary folding slit, passes through the secondary folding slit and folds the mask sheet a third time.

In addition, the first grounding pocket is provided with a Y-blade through-slit through which the Y-blade passes, and the second grounding pocket is provided with an X-blade-through-slit through which the X-blade passes.

In addition, at the front end of the X blade, Y blade, and Z blade, a slip preventing portion for preventing slip on the mask sheet is formed.

In addition, on the downstream side of the X-folding part, a sheet insertion part for receiving the mask sheet that is folded by the X-blade and discharged from the secondary folding slit and is inserted into the waiting pouch sheet is further included.

The mask sheet three-dimensional folding apparatus for a mask pack of the present invention made as described above folds the mask sheet three times in X, Y, Z directions orthogonal to each other through a three-dimensional folding operation, so that the area of the mask sheet is minimized When inserting the mask sheet into the pouch, it does not get caught at the entrance of the pouch, enabling faster insertion.

1 is a block diagram showing the overall configuration of a continuous packaging apparatus to which a three-dimensional folding apparatus for a mask sheet for a mask pack according to an embodiment of the present invention is applied.
FIG. 2 is a perspective view of the cutting roll of FIG. 1 ;
FIG. 3 is a view for explaining the configuration of the sorting supply conveyor shown in FIG. 1 .
4A and 4B are side views showing an operation method of the selective supply conveyor of FIG. 3 .
5 is a view for explaining the configuration of a mask sheet three-dimensional folding apparatus for a mask pack according to an embodiment of the present invention.
6 is a perspective view separately illustrating the X-folding part of FIG. 5 .
7 is a view for explaining the operation of the three-dimensional folding apparatus shown in FIG.
8A is a side view schematically showing the structure of the sheet insert shown in FIG. 1, and FIG. 8B is a cross-sectional view taken along the WW line of FIG. 8A.
9A to 9D are views for explaining the operation of the sheet inserting unit of FIG. 8A.
10 is a plan view illustrating the structure of the pouch positioning unit of FIG. 1 .
11A to 11G are diagrams for explaining the operation of the pouch positioning unit shown in FIG. 10 .
12 is a plan view illustrating a modified example of the pouch positioning unit shown in FIG. 10 .

Hereinafter, one embodiment according to the present invention will be described in more detail with reference to the accompanying drawings.

Prior to a full-scale description of the present invention, a continuous packaging device to which the three-dimensional folding device of the present invention can be applied will be first described.

1 is a configuration diagram showing the overall configuration of a continuous packaging device to which a three-dimensional folding device for a mask sheet for a mask pack according to an embodiment of the present invention is applied, and FIG. 2 is a perspective view of the cutting roll of FIG.

As shown, the continuous packaging device 10 includes a frame structure 21, a roll holder 22, an optical inspection unit 23, a cutting unit 25, a sheet transfer unit, an XYZ folding unit 50, and a pouch positioning. A tooth portion 80 and a sheet insertion portion 70 are provided.

The frame structure 21 is a structure that provides support, and accommodates the cutting unit 25 and the sheet transfer unit in its inner region.

The roll holder 22 includes a holder 22a that rotatably supports the fabric roll 11 on which the fabric 11a to be manufactured the mask sheet 11b is wound. The fabric 11a is a nonwoven fabric having a certain width, is supported by the holder 22a while being wound in a roll shape, and is unwound at a required speed.

The fabric 11a supplied from the fabric roll 11 passes through a cutting part 25 to be described later and is cut. The cutting unit 25 cuts the fabric 11a and serves to take the mask sheet 11b from the fabric. The mask sheet 11b is a sheet-like member separated by cutting the central portion of the fabric 11a, and has a shape as shown in FIG. 3 .

The continuous packaging device 10 is to produce a non-stop cutting of the mask sheet in the field while feeding the fabric at a constant speed, rather than loading the mask sheets stacked by several hundred sheets and then supplying them one by one. There is no need for equipment for loading or unloading the mask sheet, and there is no concern that the mask sheet will be transferred over and over again.

The remaining fabric (hereinafter, fabric scrap) after the mask sheet 11b is removed is separately collected through a first discharge part 26 and a second discharge part 27 to be described later.

The fabric 11a drawn out from the roll holder 22 passes through the optical inspection unit 23 before reaching the cutting unit 25 . The optical inspection unit 23 detects the presence or absence of an abnormality in the far end, and includes a first camera 23a, a downward board 23b, a second camera 23c, and an upward board 23d. The abnormality of the fabric includes contamination by contaminants or defects in the fabric itself.

The lower board 23b passes the fabric 11a to its lower side and the upper board 23d passes to the upper part. The fabric 11a passes through the bottom and top surfaces of the lower board 23b and the upper board 23d.

The first camera 23a irradiates light upwards to the fabric passing through the downward board 23b and simultaneously photographs the bottom surface of the fabric 11a. The content captured by the first camera 23a is outputted in real time to the monitor 23f, and the operator checks the state of the bottom surface of the fabric 11a through the monitor 23f. The second camera 23c irradiates light downward to the fabric passing over the upper board 23d and shoots it at the same time. It goes without saying that the content captured by the second camera 23c is also transmitted to the monitor 23f. The operator checks the state of the upper surface of the fabric 11a through the monitor 23f.

The fabric 11a that has passed through the optical inspection unit 23 enters the cutting unit 25 after passing through several tension control rollers.

The cutting unit 25 serves to pull and transfer the continuously supplied fabric and perform shearing to remove the mask sheet 11b from the fabric. The cutting unit 25 includes a cutting roll 24, a support roll 25a, a transfer roll 25b, a pressing roll 25c, an auxiliary roll 25d, and a support belt 25e.

The cutting roll 24 has the structure shown in FIG. 2 . As shown in FIG. 2 , the cutting roll 24 includes a cylindrical body 24a having a predetermined diameter and a cutting blade 24b formed on the outer circumferential surface of the body 24a. The cutting blade 24b is in contact with the outer circumferential surface of the support roll 25a, and cuts the fabric as if cutting a plate with a Thomson cutter.

The support roll 25a is in close contact with the cutting roll 24 and supports the fabric passing between the cutting roll and the cutting roll so that the fabric is cut by the cutting blade 24b. The fabric 11a is separated into the scrap 12 and the mask sheet 11b while passing through the support roll 25a and the cutting roll 24 . As mentioned above, the scrap 12 is discharged to the outside through the first and second discharge units 26 and 27 , and the mask sheet 11b is horizontally conveyed by riding on the sorting supply conveyor 30 which is a sheet conveying unit.

The transfer roll 25b serves to separate the mask sheet 11b cut by the cutting roll 24 from the scrap 12 and guide it toward the pressing hole 25c. The mask sheet 11b is sent to the pressing roll 25c side in a state of being attached to the outer peripheral surface of the transfer roll 25b, and then is pressed by the support belt 25e to be in close contact with the transfer belt 33 surface of the sorting supply conveyor 30. .

The pressing roll 25c and the auxiliary roll 25d are connected by a support belt 25e and rotate in the same direction. The support belt 25e is a belt-shaped member having a certain width and thickness, and is not for power transmission, but only circulates between the pressing roll 25c and the auxiliary roll 25d. The mask sheet 11b transferred through the transfer roll 25b is guided in the direction of the arrow a, then enters between the support belt 25e and the transfer belt 33, and is pressed downward by the transfer belt 33. .

On the other hand, the suction head 26a of the first discharge part 26 is positioned above the cutting roll 24 . The first discharge part 26 sucks a relatively small fabric scrap (not shown) that remains without being dropped from the outer peripheral surface of the cutting roll 24 among the fabric scraps and guides it to the outside. The small size fabric scraps are pieces that come out of the hole where the eyes and mouth of the mask sheet will be located.

In any case, the first discharge unit 26 includes a suction head 26a, an extended corrugated pipe 26b, a vacuum pump 26c, and a container 26d. In the suction head 26a, the cutting roll 24 is disposed close to the outer circumferential surface, and the scrap remaining on the cutting roll 24 is sucked into the inside. The extended corrugated pipe 26b is a flexible hose and guides the inflowing scrap to the collection container 26d. The vacuum pump 26c forms a negative pressure in the extended corrugated pipe 26b so that the scraps are collected in the collecting container 26d through the extended corrugated pipe.

In addition, the second discharge unit 27 pulls out the continuous scrap 12 coming out between the cutting roll 24 and the transfer roll 25b to take it out. The second discharge part 27 includes an inflow guide part 27a, a transfer pipe 27b, and a collection roll 27c. The inlet guide 27a is a wide inlet formed at the bottom and guides the scrap 12 to the transfer pipe 27b.

In addition, the transfer pipe 27b passes the scrap 12 so that the scrap 12 reaches the collection roll 27c. The collection roll 27c is a winding means for winding and pulling the scrap 12 . The scrap 12 comes out of the cutting part 25 at a constant speed by the collecting roll 27c. As long as the long scraps 12 can be wound, the shape or configuration of the collection roll 27c may vary. In addition, of course, the discharge speed of the scrap 12 and the feed speed of the fabric are the same. Reference numeral 12a denotes an empty hole after the mask sheet 11b exits.

By operating the first discharging unit 26 and the second discharging unit 27, all of the fabric scrap is discharged to the outside. state is maintained This is the reason that on-site production of mask sheets is possible.

The sheet conveying unit includes a sorting supply conveyor 30, a first conveyor 51a, and a first conveyor 51b. The sorting supply conveyor 30 is to guide the mask sheet 11b cut by the cutting unit 25 to the first conveyor 51a, and the first conveyor 51a is the mask sheet 11b from the sorting supply conveyor 30. ) and serves to guide it to the second conveyor 51b and the XYZ folding unit 50 . In particular, the end of the sorting supply conveyor 30 may descend in the direction of the arrow k, as shown in Fig. 4b.

FIG. 3 is a view for explaining the configuration of the sorting supply conveyor shown in FIG. 1 .

Basically, the sorting supply conveyor 30 has the purpose of sorting the mask sheet 11b in which the defect is confirmed among the mask sheet 11b transferred to the first conveyor 51a and discharging it to the defective container 13 . For example, when contaminants are attached to the mask sheet 11b, the mask sheet 11b is prevented from passing to the first conveyor 51a. This sorting operation is implemented by the abnormality detection unit 28 and the switching actuator 38 .

As shown in FIG. 1 , the abnormality detection unit 28 is equipment disposed on the vertical upper part of the sorting supply conveyor 30 , and determines whether it is normal by photographing all the mask sheets 11b that are horizontally transported. The content detected by the abnormality detection unit 28 is transmitted to the control unit 29 in real time, and the control unit selects the end of the supply conveyor 30 when the mask sheet 11b detected by the abnormality detection unit 28 is defective. is lowered as shown in FIG. 4B. If the detected mask sheet is normal, the transport path of the selective supply conveyor 30 is maintained horizontally.

This sorting supply conveyor 30 is provided with a pair of side frames 31, an end roller 37, a leveling roller 32, a conveying belt 33, and a path switching unit.

The side frame 31 is a member extending horizontally and parallel to each other, and has a plurality of rollers therebetween. Although only the end roller 37 and the leveling roller 32 are illustrated in FIG. 3 , a number of other rollers for circulating the conveying belt 33 are also applied.

The end roller 37 is rotatably located at the end of the side frame while being supported by the path changing unit, and guides the circulation movement of the conveying belt 33 . The end roller (37) has a roller body (37a) in contact with the conveying belt (33), and a horizontal fixed shaft (37b) for supporting the roller body (37a).

The leveling roller 32 includes a shaft 32b having both ends fixed to the side frame 31 and a roller body 32a supported by the shaft 32b. The roller body 32a rolls and supports and supports the conveyance belt 33 .

The path change unit, as mentioned above, when receiving a signal from the abnormality detection unit 28 in a state supported by the side frame 31, lowers the end roller 37 and transports it on the conveying belt 33 It serves to guide the mask sheet 11b to the lower part of the first conveyor 51a.

This path switching unit includes a vertical guide rod 34 , a sliding block 35 , a connecting bar 36 , a fixing plate 39 , and a switching actuator 38 .

The vertical guide rod 34 is a rod-shaped member that is vertically fixed to the ends of the side frames 31 on both sides, and supports the sliding block 35 so as to be lifted and lowered. The vertical guide rod 34 is provided with a support groove 34a for preventing the sliding block 35 from being separated.

The sliding block 35 is capable of lifting and lowering in the vertical direction while being supported by each vertical guide rod 34 . The lifting movement of the sliding block (35) is made by the switching actuator (38). Also, the fixed shaft 37b of the end roller 37 is mounted on the sliding block 35 . As the sliding block 35 slides up and down, the end roller 37 is also lifted and lowered at the same time, of course.

In addition, the connecting bar (36) is a horizontal member whose both ends are fixed to the sliding block (35). The connecting bar 36 is parallel to the end roller at the lower part of the end roller 37 .

The fixed plate 39 is a rectangular plate having a certain thickness, and both ends are fixed to the vertical guide rod 34 and support the switching actuator 38 . The switching actuator 38 is a pneumatic type, and has a cylinder 38a coupled to the fixing plate 39 and a piston rod 38b fixed to the connecting bar 36 . The upper end of the piston rod 38b is fixed to the central portion of the connecting bar 36 .

4A and 4B are side views showing an operation method of the selective supply conveyor of FIG. 3 .

Referring to FIG. 4A , it can be seen that the end roller 37 is horizontally supported by the conveying belt 33 in a state in which it is raised as much as possible. That is, the height of the sorting supply conveyor 30 and the first conveyor 51a is maintained to be the same. At this time, the mask sheet 11b passes from the selective supply conveyor 30 to the first conveyor 51a without abnormality.

However, if there is an abnormality in the mask sheet 11b conveyed by the conveyance belt 33 , the control unit 29 lowers the end roller 37 through the switching actuator 38 . As the end roller 37 descends, the portion between the leveling roller 32 and the end roller 37 rotates in the direction of the arrow k and becomes inclined, and the mask sheet ( 11b) falls to the lower part of the first conveyor 51a and collects in the defective container 13.

On the other hand, referring back to FIG. 1 , it can be seen that the second conveyor 51b is located on the downstream side of the first conveyor 51a. The second conveyor 51b forms a straight line with the first conveyor 51a and supports the mask sheet 11b. In addition, a gap is provided between the second conveyor 51b and the first conveyor 51a through which the Z blade 54d, which will be described later, passes. The Z blade 54d descends in the middle of the mask sheet 11b passing from the first conveyor 51a to the first conveyor 51b, and serves to necessarily fold the central portion of the mask sheet 11b. This will be described later.

In addition, a support frame 53 is disposed under the first conveyor 51a. The support frame 53 supports the first and second conveyors 51a and 51b horizontally as well as the Y-folding part 55 , the X-folding part 56 , and the sheet insertion part 70 .

In addition, a horizontal frame 52 is positioned on both sides of the first and second conveyors 51a and 51b. The horizontal frame 52 is provided on both sides of the width of the first and second conveyors 51a and 51b to protect the first and second conveyors 51a and 51b and support the Z-folding unit 54 at the same time.

The Z-folding unit 54 includes a vertical support 52a, a first servo actuator 54g fixed to the vertical support 52a, a Z blade 54d, and a first grounding pocket 57 . The first servo actuator 54g itself, as a general linear motion mechanism, raises and lowers the lifting arm 54c in a vertically fixed state. The lifting arm 54c is vertically moved by the first servo actuator 54g.

The Z-blade 54d is a plate-shaped member vertically fixed to the elevating arm 54c, and may have, for example, a shape as shown in FIG. 5 . The Z blade 54d descends by the first servo actuator 54g, folds approximately the middle part of the mask sheet 11b passing through the lower part at the same time, and is inserted into the first grounding pocket 57 together with the mask sheet, The mask sheet 11b is left in the first ground pocket 57 and rises. A detailed description related thereto will be provided later.

In addition, the Y-folding part 55 is positioned between the first conveyor 51a and the support frame 53 . The Y folding unit 55 includes a second servo actuator 55g installed in a direction parallel to the transport direction of the mask sheet, a Y blade 55d that reciprocates linearly by the second servo actuator 55g, and a second ground A pocket 58 is provided. The Y blade 55d has the structure shown in FIG. 5 and passes through the Y blade through slit 57b of the first grounding pocket 57 and is inserted into the secondary folding slit 58a of the second grounding pocket 58. retreat

In addition, an X-folding unit 56 is installed on the right side of the Y-folding unit 55 in the drawing. The X-folding part 56 has the structure shown in FIG. 6 . As shown in FIG. 6 , the X-folding part 56 is linearly reciprocated by the third servo actuator 56g and the third servo actuator 56g extending in a direction orthogonal to the second servo actuator 55g. It has a carriage 56c, and an X-blade 56d fixed to the carriage 56c. The X-blade also passes through the X-blade through slit 58b formed in the second grounding pocket 58 as a plate-like member having a certain thickness.

5 is a view for explaining the configuration of the XYZ folding unit 50 of the mask sheet three-dimensional folding apparatus for a mask pack according to an embodiment of the present invention, and FIG. 6 is a perspective view separately illustrating the X-folding unit of FIG. 5 . Also, FIG. 7 is a view for explaining the operation of the 3D folding apparatus shown in FIG. 5 .

Basically, the XYZ folding unit 50 serves to fold the mask sheet 11b delivered through the first conveyor 51a three times in the X direction, the Y direction, and the Z direction. The X-direction, Y-direction, and Z-direction refer to directions orthogonal to each other in three-dimensional space, and are also linear travel directions of the X blade 56d, Y blade 55d, and Z blade 54d.

First, the Z-folding part 54 is a Z-blade 54d positioned vertically in the vertical upper part of the gap between the first conveyor 51a and the second conveyor 51b, and the Z-blade 54d is fixed to the vertical lower part. It includes a first ground pocket (57). The Z blade 54d is made of a metal plate having a certain thickness and moves up and down in the Z direction (vertical direction) by the first servo actuator 54g.

A toothed blade portion 54e is formed at the lower end of the Z blade 54d. The toothed blade portion 54e is an anti-slip portion to prevent the Z blade 54d from sliding with respect to the mask sheet 11b. The sawtooth portion 54e is located at a higher altitude than the mask sheet 11b in a state where the Z blade 54d is located at top dead center, and is close to the bottom of the primary folding slit 57a at the bottom dead center.

The first ground pocket 57 is a rectangular plate-shaped member of a certain thickness, and has a primary folding slit 57a and a Y-blade through slit 57b. The primary folding slit 57a is a groove for accommodating the lowered Z blade 54d, and the Y blade through slit 57b is a straight through hole opened upward through which the Y blade 55d advancing in the Y direction passes. .

The Y-folding part 55 has a Y-blade 55d and a second grounding pocket 58 . The Y-blade 55d is a metal plate having a certain thickness and has a toothed portion 55e at its front end in the forward direction. The sawtooth part 55e is a slip prevention part for preventing slippage with respect to the mask sheet 11b.

In addition, the second ground pocket 58 is located in the forward direction of the Y blade 55d, and the Y blade 55d passing through the Y blade through slit 57b of the primary folding slit 57a is inserted. As a square plate-shaped member, it has a secondary folding slit 58a and an X-blade penetrating slit 58b. The secondary folding slit 58a is a gap through which the Y blade 55d is fitted, and the X blade through slit 58b is a straight groove through which the X blade 56d passes.

The X-folding portion 56 has an X-blade 56d and a carriage 56c, as described above. The X blade 56d is a rectangular plate-shaped member having a certain thickness, and has a toothed blade portion 56e at its tip end in the X direction. The toothed part 56e is an anti-slip part that prevents slipping on the mask sheet.

The mask sheet 11b is stored in the pouch 100 after being folded three times through the process shown in FIGS. 7A to 7D .

That is, the moment the mask sheet 11b that is deployed and moves horizontally passes through the vertical lower part of the Z blade, as shown in FIG. 7A , the Z blade 54d descends in the direction of the arrow Z and is based on the folding line AA. to fold the mask sheet 11b. The Z blade 54d descends with the mask sheet 11b folded in half, inserts the mask sheet 11d into the primary folding slit 57a, and then rises. The mask sheet 11b is in the first folded state as shown in FIG. 7B .

Then, the Y-blade 55d moves in the direction of the arrow Y, passes through the Y-blade through slit 57b, and the mask sheet 11b waiting in the primary folding slit 57a is folded based on the folding line B-B. The Y blade 55d returns to its initial position with the second folded mask sheet 11b inserted into the secondary folding slit 58a.

After the mask sheet 11b is inserted into the secondary folding slit 58a, the X blade 56d advances in the direction of the arrow X, and the mask sheet 11b is folded for the third time based on the folding line C-C. The X-blade 56d is inserted into the third grounding pocket 73f of the sheet insertion portion (70 in FIG. 8) to be described later, and the mask sheet 11b is inserted into the third folding slit 73g. 7D shows the third folded state of the mask sheet 11b. The mask sheet 11b inserted into the third ground pocket 73f is inserted into the pouch 100 in a state where the sheet insertion part 70 is lowered.

In some cases, when the process is completed with the X-folding part, a mask sheet accommodation pocket having an appropriate structure instead of the sheet insertion part 70 may be disposed in front of the moving direction of the X-blade.

8A is a side view schematically showing the structure of the sheet insert shown in FIG. 1, and FIG. 8B is a cross-sectional view taken along the line W-W of FIG. 8A.

As shown, the seat insertion unit 70 includes a fourth servo actuator 73k, a connecting plate 73d, a holding case 73e, a discharge actuator 74, and a pushing block 75.

The fourth servo actuator 73k is installed on the side of the second ground pocket 58 as a vertically installed lifting force output means. In addition, the fourth servo actuator 73k is provided with a slider 73c that moves up and down. The slider 73c moves up and down within a set range when the fourth servo actuator 73k is operated.

The connecting plate 73d is fixed to the slider 73c and moves up and down simultaneously with the slider 73c. In addition, the holding case 73e is fixed to the connecting plate 73d, and has a discharge actuator 74 and a pushing block 75 therein as a case extending vertically. The holding case 73e moves up and down while accommodating the pushing block 75 .

The discharge actuator 74 is a linear servo type actuator, and has a vertical fixed body 74a and an operating rod 74b. In addition, the pushing block 75 is fixed to the lower end of the operation rod 74b. The pushing block 75 is a member for discharging the mask sheet 11b into the inner space of the pouch, as shown in FIG. 9C .

In addition, a third grounding pocket 73f is provided on the lower side of the holding case 73e. The third grounding pocket (73f) provides a tertiary folding slit (73g) that is a space open to the bottom. The tertiary folding slit 73g is a space in which the mask sheet 11b is inserted in the arrow p direction of FIG. 8B by the X blade to maintain the folded state three times.

9A to 9D are views for explaining the operation of the sheet inserting unit of FIG. 8A.

Referring to FIG. 9A , it can be seen that the mask sheet 11b is inserted into the tertiary folding slit 73g and the pouch 100 is waiting in the vertical lower portion of the holding case 73e. The inlet of the pouch 100 is in an open state.

In this state, as shown in FIG. 9B , when the slider 73c is lowered, the third grounding pocket 73f is inserted into the pouch 100 . Then, the holding case 73e is raised and the pushing block 75 is lowered at the same time to push the mask sheet 11b to the lower part of the tertiary folding slit 73g.

If the mask sheet 11b is accommodated in the pouch 100 through the above process, as shown in FIG. 9d , after restoring the holding case 73e and the pushing block 75 to their initial positions, the next mask sheet 11b is 3 Wait for it to be inserted into the car folding slit (73g).

10 is a plan view illustrating the structure of the pouch positioning unit 80 of FIG. 1 .

The pouch positioning unit 80 is disposed on the side of the support frame 53 and serves to transport the pouch 100 waiting in the pouch cassette 86 to the vertical lower portion of the holding case 73e. The pouch 100 waits for the input of the mask sheet 11b in an open state in the vertical lower portion of the holding case 73e.

Referring to FIG. 10 , it can be seen that the pouch cassette 86 is mounted on both sides of the support frame 53 . A large amount of pouches 100 are accommodated in the pouch cassette 86 in an upright state. The pouch cassette 86 is not a sealed case, but has an open structure in which pouches can be drawn out one by one from the front.

In addition, a box-shaped support case 81 is positioned on the side of the support frame 53 . The support case 81 takes the form of a box and has a dual actuator 82a therein. The dual actuator 82a supports the two sliders 82b to be slidable as a horizontal linear motion implementation means.

The slider 82b repeatedly reciprocates in a predetermined section while supporting the pouch transfer opening device 85 . For example, in the drawing, when the left pouch transfer opener 85 is positioned at the vertical lower portion of the sheet insertion unit 70, the right pouch transfer opener 85 moves from the right pouch cassette 86 to one pouch 100. is to extract Also, when the left pouch transfer opener 85 moves to the left pouch cassette 86 , the right pouch transfer opener 85 moves to the vertical lower part of the sheet insertion unit 70 .

The task of each pouch transfer opener 85 is to pull out one pouch from the pouch cassette 86 and place it in the vertical lower part of the sheet insertion part 70 with the mouth of the pouch wide open, tertiary folding slit (73g) This mask sheet 11b is to be inserted into the pouch sheet. In addition, after the mask sheet 11b is inserted, the pouch sheet (semi-finished product) in which the mask sheet has been inserted is freely dropped. The semi-finished product that has fallen to the bottom is discharged to the outside through the discharge conveyor 91 .

The pouch positioning unit 80 includes two pouch take-out machines 83 and two pouch transfer-openers 85 interlocking with each drawer 83 .

The pouch ejector 83 corresponds to the pouch cassette 86 while being mounted on the support case 81 . The pouch ejector 83 has a horizontal actuator 83a, a reciprocating head 83c, and a pair of suction parts 83d. The reciprocating head 83c is fixed to the piston rod 83b of the actuator and moves forward and backward with respect to the pouch cassette 86. In addition, the adsorption unit 83d is connected to an external vacuum pump (not shown) through a flexible tube, and adsorbs the front surface of the pouch 100 waiting for its turn.

If the reciprocating head 83c moves to the pouch cassette 86 and the suction unit 83d adsorbs the pouch, the reciprocating head 83c is in a retracted state. At this time, it goes without saying that the pouch 100 is adsorbed and fixed to the adsorption unit 83d.

The pouch transfer opener 85 has an outer frame 85b, a fixed suction unit 85e, an actuator 85c, an inner frame 85f, and a movable suction unit 85d, and has a higher altitude than the pouch extractor 83. horizontal reciprocating motion in For example, when the pouch transfer opener 85 is transferred in the side direction as much as possible, it may be positioned above the pouch ejector 83 .

The outer frame 85b takes the shape of a square frame and includes a pouch to be transported in its inner region. Reference numeral 85k denotes a side passage for receiving the pouch. The fixed adsorption unit 85e is mounted on the end of the outer frame 85b, faces the inner space of the outer frame, and absorbs one side of the pouch under the action of negative pressure provided from the outside.

Also, the actuator 85c is mounted on the outer frame 85b and reciprocates the inner frame 85f. The inner frame 85f is a rectangular frame reciprocating inside the outer frame 85b, and has a movable suction part 85d.

The movable suction unit 85d corresponds to the fixed suction unit 85e one-to-one, and absorbs the other side of the pouch under the action of negative pressure provided from the outside. With the pouch 100 interposed between the fixed suction unit 85e and the movable suction unit 85d, the movable suction unit 85d is advanced toward the fixed suction unit 85e, and the fixed suction unit 85e And after providing negative pressure to the movable suction unit 85d, when the movable suction unit 85d is retracted, the entrance of the pouch is opened.

11A to 11G are diagrams for explaining the operation of the pouch positioning unit shown in FIG. 10 .

11A shows a state in which the adsorption unit 83d adsorbs the front of the pouch 100, and FIG. 11B shows a state in which the adsorption unit 83d retreats from the pouch cassette 86 and one pouch 100 is withdrawn.

As shown in FIG. 11B , immediately after the adsorption unit 83d withdraws the pouch 100 , the pouch transfer opener 85 moves in the direction of the arrow n in FIG. 10 . Accordingly, the fixed suction unit 85e and the movable suction unit 85d are disposed on both sides of the pouch 100 as shown in FIG. 11C . Next, the movable suction unit 85d moves toward the fixed suction unit 85e with the pouch 100 interposed therebetween to adsorb both sides of the pouch, and the suction unit 83d is removed. (Fig. 11d).

The movable suction unit 85d and the fixed suction unit 85e adsorb and fix the pouch 100, and at the same time, the pouch transfer opener 85 moves to the vertical lower portion of the tertiary folding slit 73g. At this time, the movable suction unit 85d moves away from the fixed suction unit 85e to open the entrance of the pouch as shown in FIG. 11E .

As soon as the pouch 100 arrives at the lower portion of the tertiary folding slit 73g, the tertiary folding slit 73g descends to insert the mask sheet 11b in the pouch and exit. 11f, the insertion of the mask sheet 11b into the pouch is completed.

After the insertion of the mask sheet is completed, the vacuum pressure applied to the fixed suction unit 85e and the movable suction unit 85d is released, and the movable suction unit 85d returns to its initial position. At this time, by the action of gravity, the semi-finished mask sheet falls freely and is transferred to the discharge conveyor 91 and is carried out.

12 is a plan view illustrating a modified example of the pouch positioning unit shown in FIG. 10 .

As shown, first and second belts 87a and 88a and guide rails 85p are provided on the upper portion of the support case 81 .

The first belt 87a is maintained in a taut state by the pulley 87b and rotates in both directions by the servo motor 87c. The second belt 88a also rotates in both directions by the servomotor 88c with both ends supported by the pulley 88b. The first belt 87a and the second belt 88a are parallel to each other.

In addition, the guide rail 85p is a linear member extending in parallel with each other, and supports the slider 85m in a slidable manner. The slider 85m is a plate-shaped member having a certain thickness, supported by the guide rail 85p, and linearly moves in the left and right directions in the drawing by receiving power from the first and second belts 87a and 88a. Two sliders (85m) form a set.

In the drawing, the left slider 85m is connected to the first belt 87a through a belt connector 85n, and the right slider 85m is connected to the second belt 88a through another belt connector 85n.

The operation of the pouch transfer opener 85 and the pouch ejector 83 shown in FIG. 12 is similar to the pouch transfer opener described with reference to FIG. 10, but the pouch ejector 83 withdraws only the pouch 100 in place, The pouch transfer opening device 85 is different in that it slides left and right. The action is as follows.

First, the left pouch ejector 83 waits in a state in which one pouch 100 is withdrawn. At the same time, the left pouch transfer opener 85 moves to the left pouch ejector 83 to receive the pouch. In the meantime, the right pouch transfer opener 85 receives the mask sheet with the pouch 100 open, and then freely falls the pouch into which the mask sheet is inserted, and then moves to the right pouch ejector 83 . At this time, the right pouch take-out machine 83 is waiting in a state in which one pouch 100 is withdrawn.

While the right pouch transfer opener 85 goes to receive the pouch, the left pouch transfer opener 85 arrives at the vertical lower part of the pushing block 75, opens the entrance of the pouch 100, and waits for the mask sheet to descend. . When the mask sheet is put into the pouch 100 , the pouch is freely dropped and then moved to the left pouch ejector 83 .

As mentioned above, although the present invention has been described in detail through specific embodiments, the present invention is not limited to the above embodiments, and various modifications are possible by those of ordinary skill within the scope of the technical spirit of the present invention.

10: continuous packaging device 11: fabric roll 11a: fabric
11b: mask sheet 12: scrap 12a: hole
13: Defective bin 21: Frame structure 22: Roll holder
22a: cradle 23: optical inspection unit 23a: first camera
23b: downward board 23c: second camera 23d: upward board
23f: Monitor 24: Cutting Roll 24a: Body
24b: cutting blade 25: cutting part 25a: support roll
25b: transfer roll 25c: press roll 25d: auxiliary roll
25e: support belt 26: first discharge portion 26a: suction head
26b: Extended corrugated pipe 26c: Vacuum pump 26d: Receptacle
27: second outlet 27a: inlet guide 27b: transfer pipe
27c: collection roll 28: abnormality detection unit 29: control unit
30: sorting supply conveyor 31: side frame 32: leveling roller
32a: roller body 32b: shaft 33: transfer belt
34: vertical guide rod 34a: support groove 35: sliding block
36: connecting bar 37: end roller 37a: roller body
37b: fixed shaft 38: switching actuator 38a: cylinder
38b: piston rod 39: fixed plate 50: XYZ folding part
51a: first conveyor 51b: second conveyor 52: horizontal frame
52a: vertical support 53: support frame 54: Z folding part
54c: Lifting arm 54d: Z blade 54e: Toothed part
54g: First servo actuator 55: Y folding part 55d: Y blade
55e: tooth blade part 55g: second servo actuator 56: X folding part
56c: reciprocating band 56d: X blade 56e: toothed part
56g: 3rd servo actuator 57: 1st ground pocket 57a: 1st folding slit
57b: Y blade through slit 58: second ground pocket 58a: secondary folding slit
58b: X blade through slit 70: seat insertion part 73c: slider
73d: connection plate 73e: holding case 73f: third ground pocket
73g: tertiary folding slit 73k: fourth servo actuator 74: exhaust actuator
74a: fixed body 74b: working rod 75: pushing block
80: pouch fixed position 81: support case 82a: dual actuator
82b: slider 83: pouch ejector 83a: actuator
83b: piston rod 83c: reciprocating head 83d: suction part
85: pouch transfer opening device 85b: outer frame 85c: actuator
85d: movable suction unit 85e: fixed suction unit 85f: inner frame
85k: Side passage 85m: Slider 85n: Belt connector
86: pouch cassette 87a: first belt 87b: pulley
87c: Servo motor 88a: Second belt 88b: Pulley
88c: servo motor 91: exhaust conveyor 100: pouch

Claims (6)

a support frame;
a sheet transport unit installed on the support frame and horizontally transporting the mask sheet transferred from the outside;
By folding the mask sheet supplied through the sheet transfer unit to a size that can be accommodated in a pouch,
a Z-folding unit that primarily folds the mask sheet supported by the sheet conveying unit;
a Y-folding unit that folds the mask sheet in the folded state by the Z-folding unit again, and secondarily folds it based on a folding line orthogonal to the Z-folding unit's folding line;
For a mask pack comprising an X-folding part that folds the mask sheet folded by the Y-folding part once again, and folds three times based on a folding line orthogonal to any one of the folding lines of the Z-folding part or the Y-folding part. Mask sheet 3D folding device. According to claim 1,
The sheet transfer unit;
A first conveyor for horizontally transporting the mask sheet, and a second conveyor in a straight line with the first conveyor and spaced apart from the first conveyor,
The Z-folding unit;
A first servo actuator installed on the upper portion of the sheet transfer unit, a Z blade that vertically moves up and down through a gap between the first conveyor and the second conveyor by the first servo actuator, installed in the vertical direction of the Z blade and a first grounding pocket having a primary folding slit into which the Z-blade in a lowered state is inserted,
The Y folding unit;
A second servo actuator installed under the sheet transfer unit, a Y blade that moves horizontally and linearly reciprocates by the second servo actuator and passes through the primary folding slit by advancing to the first grounding pocket, the primary folding slit It includes a second grounding pocket having a secondary folding slit into which the passed Y blade is inserted,
The X folding unit;
A third servo actuator installed on the lower part of the sheet transfer unit, a horizontal linear reciprocating motion by the third servo actuator, moving in a direction orthogonal to the Y blade, advancing toward the secondary grounding pocket and passing through a secondary folding slit A mask sheet three-dimensional folding device for mask packs having an X-blade. 3. The method of claim 2,
The Z blade, Y blade, and X blade are plate-shaped members having a certain thickness, and their respective movement directions are orthogonal to each other,
The Z blade descends when the mask sheet spans the first conveyor and the second conveyor, folds the mask sheet in half, inserts it into the primary folding slit, and then returns to its original position,
The Y blade, after the mask sheet is inserted into the primary folding slit, passes through the primary folding slit and folds the mask sheet for a second time, inserts it into the secondary folding slit of the second grounding pocket, and returns to its original position,
The X-blade, after the mask sheet is inserted into the secondary folding slit, passes through the secondary folding slit to fold the mask sheet a third time, a mask sheet three-dimensional folding device for a mask pack. 3. The method of claim 2,
A Y blade through slit through which the Y blade passes is formed in the first ground pocket,
A mask sheet three-dimensional folding device for a mask pack provided with an X-blade penetrating slit through which the X-blade passes in the second grounding pocket. 3. The method of claim 2,
A mask sheet three-dimensional folding device for a mask pack in which a slip prevention part for preventing slip on the mask sheet is formed at the front end of the X blade, Y blade, and Z blade. 4. The method of claim 3,
On the downstream side of the X-folding part,
A mask sheet three-dimensional folding device for a mask pack that further includes a sheet insertion unit that is folded by the X-blade and receives the mask sheet discharged from the secondary folding slit and inserts it into the waiting pouch sheet.

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