JP5877220B2 - Production equipment for adhesive coatings - Google Patents

Description

  The present invention relates to an apparatus for manufacturing an adhesive covering for manufacturing an intermediate product of an adhesive covering in which an object to be attached is attached to a product separator original.

  The adhesive covering is a product in which an object to be pasted and a product separator are detachably bonded, and is also used as a medicine. The adherend is a product in which an adhesive layer containing a drug is laminated on the entire surface of one side of a support, and is mass-produced by an apparatus for manufacturing an adhesive covering.

  For example, as shown in FIGS. 4 and 5, the adhesive covering body manufacturing apparatus includes a first vacuum drum 111, a knife edge 130 as a peeling means, a first die roll 112, a second vacuum drum 121, 2, a pressure-sensitive adhesive covering is manufactured from the material to be stuck 210 and the product separator 220 (see, for example, Patent Document 1).

  The material to be stuck 210 includes a belt-shaped support material 211, an adhesive layer 212 provided on the entire surface of the support material 211, and a release separator 213 laminated on the adhesive layer 212 (see FIG. 5). The product separator original fabric 220 is fed out from a state wound in a roll shape, and is split into two parts by being split in the longitudinal direction by the second die roll 122.

  The first vacuum drum 111 is partially wound by adsorbing the workpiece original fabric 210 with the release separator 213 on the outside and the support original fabric 211 on the inside. Moreover, the 1st vacuum drum 111 advances the to-be-adhered material original fabric 210 to a length direction by rotating in a fixed direction (counterclockwise direction in drawing).

  And the knife edge 130 is arrange | positioned in the advancing direction upstream of the to-be-sticked material original fabric 210 wound around the 1st vacuum drum 111 partially. The pointed end of the knife edge 130 is applied to the release separator 213. The release separator 213 is pulled back along the folding surface of the knife edge 130 in the direction of folding back with respect to the traveling direction of the support original fabric 211, thereby peeling from the adhesive layer 212 laminated on the support original fabric 211. .

  The first die roll 112 is disposed in the intermediate portion in the traveling direction of the support original fabric 211 that is partially wound around the first vacuum drum 111. In addition, the first die roll 112 forms cuts in the pressure-sensitive adhesive layer 212 and the support raw fabric 211 so as to form the adherend continuous band 214 in which adherends (not shown) are arranged one after another in series. Have a blade (not shown).

  The second vacuum drum 121 is disposed on the downstream side in the traveling direction of the article continuous band 214 partially wound around the first vacuum drum 111. In addition, the second vacuum drum 121 is partially wound by adsorbing the product separator original fabric 220 and rotated in the opposite direction (clockwise in the drawing) to the first vacuum drum 111, so It advances in the length direction opposite to 220. The peripheral speed of the second vacuum drum 121 is slightly higher than the peripheral speed of the first vacuum drum 111.

  The second die roll 122 is disposed on the upstream side in the traveling direction of the product separator original fabric 220 that is partially wound around the second vacuum drum 121. Further, the second die roll 122 has a blade (not shown) for placing a longitudinal split in the product separator original fabric 220.

  The manufacturing apparatus for the adhesive covering is configured as described above. Next, a method for producing an adhesive covering using this production apparatus will be described.

  The original material 210 to be stuck is partially wound around the first vacuum drum 111 and is adsorbed by the first vacuum drum 111. As the first vacuum drum 111 rotates in the circumferential direction, the material to be attached 210 is advanced in the length direction.

  Then, the release separator 213 of the workpiece original fabric 210 hits the knife edge 130 on the upstream side in the traveling direction, and is returned to the direction in which it is folded back with respect to the traveling direction of the workpiece original fabric 210, thereby supporting substrate 211. The adhesive layer 212 is peeled off.

  Then, the adhesive layer 212 is exposed to the outside, and the support original fabric 211 advances in the length direction while being adsorbed by the first vacuum drum 111. And the 1st die roll 112 cuts into the adhesion layer 212 and the support raw material 211, and the to-be-attached article continuous band 214 of the state which put the to-be-attached object in order in series is formed.

  On the other hand, the product separator web 220 is partially wound around the second vacuum drum 121 and is adsorbed by the second vacuum drum 121. As the second vacuum drum 121 rotates, the product separator original fabric 220 advances in the length direction. The product separator is split by the second die roll 122 and divided into two.

  And each to-be-attached thing of the to-be-attached article continuous band 214 and the product separator original fabric 220 divided into two will be in the state pinched | interposed into the 1st vacuum drum 111 and the 2nd vacuum drum 121. FIG. Since the peripheral speed of the second vacuum drum 121 is slightly higher than the peripheral speed of the first vacuum drum 111, an intermediate product in which each article to be attached is attached to the product separator raw fabric 220 at intervals. Manufactured.

Japanese Patent No. 4997303

  In the conventional apparatus for producing an adhesive covering, the first die roll 112 for making a cut in the support original fabric 211 and the adhesive layer 212 is disposed on the downstream side of the knife edge 130, so that each adherend The release separator 213 is peeled from the support original fabric 211 in a state where no is formed. The support original fabric 211 is adsorbed to the first vacuum drum 111 with a minimum weak adsorbing force so that an object to be formed formed on the downstream side can be transferred to the product separator original fabric 220.

  Therefore, when the support original fabric 211 has stretchability, the adhesive force between the support original fabric 211 and the release separator 213 by the adhesive layer 212 is stronger than the adsorption force of the first vacuum drum 111. Together, the support material 211 follows the release separator 213 that is pulled back, that is, is folded back along the knife edge 130, separated from the first vacuum drum 111, and adsorbed by the first vacuum drum 111. Disappear.

  When the support original fabric 211 is separated from the first vacuum drum 111 even a little, the support original fabric 211 is separated from the first vacuum drum 111 in a wide range in a chain manner. Therefore, in the conventional apparatus for producing an adhesive covering, it is difficult to peel the release separator 213 from the support original fabric 211 having elasticity.

  Therefore, the present invention provides a pressure-sensitive adhesive covering that can reliably peel the release separator from the pressure-sensitive adhesive layer provided on the base material even when the base material has elasticity. It is an object to provide an apparatus.

An apparatus for producing an adhesive covering according to the present invention includes a strip-shaped support original fabric, an adhesive layer provided on one entire surface of the support original fabric, and a strip-shaped release separator laminated on the adhesive layer. An apparatus for producing an adhesive covering for producing an intermediate product in which a plurality of objects to be adhered formed from an object to be adhered are affixed to a belt-shaped product separator raw material at intervals, the support A first vacuum drum on which an original material to be stuck with a raw material outside is partially wound, wherein the first vacuum drum advances in the length direction while adsorbing the original material to be stuck; A die roll having a support original and a blade for making a cut in the adhesive layer on the first vacuum drum, wherein a plurality of adherends are stuck on the release separator. A die roll forming a band, and A second vacuum drum in which the patch continuous band is bridged from the first vacuum drum, and the second vacuum is advanced in the length direction while adhering the paste continuous band with the release separator facing outside. A drum, a peeling mechanism for peeling the release separator of the object continuous band on the second vacuum drum from the object to be bonded, and a product on which each object of the adherence continuous band is transferred And a peeling surface that wraps the release separator in a direction opposite to the advancing direction of the pointed end portion and the adherend continuous band attached to the release separator. a knife edge with, disposed adjacent the knife edge, the features and winding included prevention roller for pressing the object to be attached material on the second vacuum drum It is characterized in that.

  According to this apparatus for producing an adhesive covering, a notch is made by a die roll blade into a support original and an adhesive layer of an original material to be stuck that is adsorbed to the first vacuum drum and partially wrapped. Thus, an adherend continuous band in which a plurality of adherends are stuck on the release separator is formed. This sticking object continuous band advances from the first vacuum drum to the second vacuum drum, is partially wound around the second vacuum drum, is adsorbed, and advances in the length direction.

When the release separator of the adherend continuous band is wound around the second vacuum drum, it is exposed to the outside. The release separator is peeled off from the object to be pasted by a peeling mechanism. Specifically, the release separator is applied to the tip portion of the knife edge and is peeled off from the object to be pasted by being folded along the folded surface.
At this time, the wrapping prevention roller presses the object to be adhered to the second vacuum drum, so that the object to be adhered does not follow the release separator that is pulled back.
That is, the release separator is adhered to the adhesive layer of each object to be adhered, and is not integrally adhered over the entire length of the object continuous band. Therefore, even if the object to be pasted is stretchable, the object to be pasted proceeds while being attracted to the second vacuum drum without being pulled by the release separator to be peeled off.

  And the adhesion layer of a to-be-adhered thing is piled up on the product separator original fabric wound around the bonding roller. By making the traveling speed of the product separator web faster than the peripheral speed of the second vacuum drum, it is possible to produce an intermediate product in which each article to be pasted is attached to the product separator with a gap.

  Further, as one aspect of the apparatus for producing the adhesive covering, the second vacuum drum includes a plurality of communication holes communicating with an outer peripheral surface and at least one end surface, and the communication of the second vacuum drum is performed. A configuration comprising an end plate overlaid on an end surface where the hole is exposed, and an end plate provided with an intake portion that communicates with a plurality of communication holes and sucks air in a range that adsorbs the adherend continuous band Can be adopted.

  According to this adhesive covering body manufacturing apparatus, the end panel provided with the air intake portion is superimposed on the end surface of the second vacuum drum provided with the communication hole. The second vacuum drum is rotated in order to advance the adherend continuous band in the length direction, and the communication hole is also rotated by this rotation, but only the communication hole communicating with the intake portion formed in the end board is sucked. The Therefore, the sticking object stuck on the product separator original by the pasting roller does not continue to be attracted to the communication hole.

  In this case, it is preferable that the end plate includes an injection unit for exhausting air from the communication hole.

  According to this apparatus for manufacturing an adhesive covering, the object to be adhered is adsorbed by the communication hole sucked from the suction part of the end panel until the object to be adhered is overlapped on the product separator original by the laminating roller, and the object to be adhered is adhered. In a state where the product separator raw material is overlapped by the roller, air is blown from the injection unit to the communication hole, so that the article to be attached is pressed against the product separator original material wound around the application roller.

  ADVANTAGE OF THE INVENTION According to this invention, even if a support raw material has a stretching property, manufacture of the adhesive coating body which made it possible to peel a release separator reliably from the adhesive layer provided in the support raw material. An apparatus can be provided.

FIG. 1 is an explanatory view showing an embodiment of an apparatus for producing an adhesive covering according to the present invention. FIG. 2 is an explanatory view showing a first state, which is a main part showing an embodiment of an apparatus for producing an adhesive covering according to the present invention. FIG. 3 is an explanatory view showing a second state, which is a main part of an embodiment of the apparatus for manufacturing an adhesive covering according to the present invention. FIG. 4 is an explanatory view showing a conventional apparatus for producing an adhesive covering. FIG. 5 is an explanatory view showing a main part of a conventional apparatus for producing an adhesive covering.

  An embodiment of an apparatus for producing an adhesive covering according to the present invention will be described with reference to FIGS. Each drawing is schematically drawn.

  This apparatus for producing an adhesive covering is for producing an intermediate product 200 in which a plurality of articles 215 formed from a band-shaped article original 210 are affixed to a band-shaped product separator 220 at intervals. It is a device.

  This apparatus for producing an adhesive covering includes a first vacuum drum 10, a die roll 20, a second vacuum drum 30, a peeling mechanism 40, and a laminating roller 50.

  Both the first vacuum drum 10 and the second vacuum drum 30 rotate in the circumferential direction and are provided with horizontal rotation shafts 11a and 31a. Further, end plates 12 and 32 are superimposed on one or both end surfaces of the first vacuum drum 10 and the second vacuum drum 30.

  The first vacuum drum 10 and the second vacuum drum 30 are formed with a plurality of annular communication holes 11b and 31b penetrating the outer peripheral surface and the end surface. When the communication holes 11b and 31b open only on one end surface of the first vacuum drum 10 and the second vacuum drum 30, the end plates 12 and 32 are overlapped only on one end surface, and the communication holes 11b and 31b are formed. When opening to the end surfaces of both the first vacuum drum 10 and the second vacuum drum 30, the end plates 12 and 32 are superimposed on both end surfaces.

  The end boards 12 and 32 are provided with concave intake portions 12a and 32a for sucking (intake) air in the communication holes 11b and 31b within a certain range. The intake portions 12a and 32a are provided in a C shape, for example.

  The end board 32 superimposed on the second vacuum drum 30 is provided with an injection part 32b. The injection unit 32b is provided with an injection unit 32b so as to be adjacent to the end of the suction unit 32a on the laminating roller 50 side. Air is discharged (exhausted) from the injection portion 32 b to the communication hole 31 b of the second vacuum drum 30.

  The end board 32 superimposed on the second vacuum drum 30 is in a state where the communication hole 31b adjacent to the laminating roller 50 and the air intake portion 32a communicate with each other as shown in FIG. 2, and as shown in FIG. The injection portion 32b reciprocates at a constant angle with the state where the injection portion 32b is adjacent to the communication hole 31b adjacent to the alignment roller 50. The reciprocating motion of the end plate 32 can be performed by a crank mechanism (not shown) or the like.

  Then, the original material 210 to be stuck is partially wound around the first vacuum drum 10. The material to be attached 210 is adsorbed to the first vacuum drum 10 with the support material 211 being outside and the release separator 213 being inside (the adhesive layer 212 is not shown in FIGS. 2 and 3). .) Then, when the first vacuum drum 10 rotates in a certain direction (clockwise in the drawing), the original material 210 to be stuck advances in the length direction.

  Then, the die roll 20 is disposed at the intermediate portion (in the drawing, at the 12 o'clock position of the timepiece dial) in the advancing direction of the original material 210 to be adhered, which is partially wound around the first vacuum drum 10. The die roll 20 has a blade for making a cut in the support original fabric 211 and the adhesive layer 212 (see FIG. 5) of the adhesive original fabric.

  A notch is formed in the support original fabric 211 and the adhesive layer 212 of the adherend substrate 210 so that a plurality of adherends 215 are arranged in series on the release separator 213 one after another. Is formed. The blade is provided in a ladder shape on the outer peripheral surface of the die roll 20.

  Then, the second vacuum drum 30 is partially wound around and adsorbs the adherend continuous band 214. The second vacuum drum 30 rotates in the direction opposite to the first vacuum drum 10 (counterclockwise in the drawing), thereby causing the pasted article continuous band 214 to advance in the length direction. The release separator 213 of the adherend continuous band 214 is exposed to the outside.

  The peeling mechanism 40 is arranged at the intermediate portion in the traveling direction of the adherend continuous band 214 partially wound around the second vacuum drum 30 (in the drawing, at the 5 o'clock position on the clock face). Is done. The peeling mechanism 40 includes a knife edge 41 and a roll-in preventing roller 42 disposed adjacent to the knife edge 41.

  The knife edge 41 includes a pointed end portion 41a applied to the release separator 213 and a folding surface 41b that folds the release separator 213 in the direction opposite to the advancing direction of the adherend continuous band 214. The roll-in preventing roller 42 presses the object 215 to the second vacuum drum 30 so as not to stick.

  The laminating roller 50 is disposed on the downstream side in the advancing direction of the adherend continuous band 214 partially wound around the second vacuum drum 30, and has a faster peripheral speed than the second vacuum drum 30. , It rotates in the direction opposite to the second vacuum drum 30 (clockwise in the drawing). A product separator original fabric 220 is partially wound around the laminating roller 50.

  In the illustrated product separator original fabric 220, two products having a width slightly wider than half the width of the object 215 are arranged in parallel. However, the product separator original fabric 220 may be only one with the same width as the article 215 to be pasted. In any case, the laminating roller 50 and the second vacuum drum 30 are arranged so as to sandwich the object 215 to be bonded and the original product separator 220.

  The manufacturing apparatus for the adhesive covering is configured as described above. Next, a method of manufacturing the intermediate product 200 using this adhesive covering manufacturing apparatus will be described.

  The original material 210 to be stuck is adsorbed by the first vacuum drum 10 and partially wound, and the first vacuum drum 10 is rotated to advance in the length direction. The original material 210 is attached to the first vacuum drum with the release separator 213 on the inside, and the support material 211 is exposed to the outside.

  Then, the blade of the die roll 20 cuts the support material 211 and the adhesive layer 212 of the material to be adhered 210, so that the material to be adhered 215 is connected in series on the release separator 213. A band 214 is formed. Both sides of the support original fabric 211 and the adhesive layer 212 are removed as scrap 216. Therefore, each side part of the release separator 213 is exposed on both sides of the adherend continuous band 214.

  And the to-be-adhered article continuous band 214 advances from the state partially wound around the first vacuum drum 10 to the state partially wound around the second vacuum drum 30.

  Then, the release separator 213 is located along the folded surface 41b of the knife edge 41 at a position where it hits the sharp tip 41a of the knife edge 41 of the peeling mechanism 40, that is, opposite to the traveling direction of the article continuous band 214. It is folded in the direction and peeled off from the object to be stuck 215. The pasted article continuous band 214 is obtained by pasting a plurality of pasted articles 215 in series, and the release separator 213 is easily peeled off from the adhesive layer 212 of each pasted article 215.

  Therefore, even if each object to be stuck 215 has elasticity, it does not follow the release separator 213 folded back by the knife edge 41 and continues to be attracted to the second vacuum drum 30. Note that each object 215 does not follow the release separator 213 even when the roll-in prevention roller 42 of the peeling mechanism 40 presses each object 215 against the second vacuum drum 30.

  And the to-be-attached object 215 which peeled the release separator 213 advances toward the bonding roller 50, when the 2nd vacuum drum 30 rotates. As shown in FIG. 2, the suction portion 32a provided on the end plate 32 superimposed on the second vacuum drum 30 is positioned on the downstream side of the position adjacent to the bonding roller 50. It proceeds while being adsorbed to the position of the laminating roller 50.

  Then, when the object to be adhered 215 advances until it is adjacent to the position of the laminating roller 50, the end board 32 superimposed on the second vacuum drum 30 rotates as shown in FIG. The jetting part 32 b is adjacent to the position of the laminating roller 50. If it does so, air will blow out to the communicating hole 31b which has adsorb | sucked the to-be-adhered object 215 adjacent to this bonding roller 50, and this to-be-attached object 215 will be pressed on the product separator original fabric 220. FIG.

  When the adhesive layer 212 of the article to be attached 215 is overlapped with the product separator, the article to be attached 215 is attached to the original product separator 220. Since the peripheral speed of the laminating roller 50 is slightly higher than the peripheral speed of the second vacuum drum 30, the product separator original fabric 220 is in a state of pulling the object to be adhered 215. Accordingly, the preceding object 215 is attached to the product separator original 220 with a space from the subsequent object 215. Thus, the product separator original fabric 220 to which the object 215 is attached at intervals is the intermediate product 200.

  Then, in the intermediate product 200 in which the article 215 is pasted on the product separator original 220, the product separator original 220 between the article 215 and the article 215 is cut and packaged with a packaging material. As a result, the final product is completed. Further, the end board 32 superimposed on the second vacuum drum 30 immediately returns to the original position shown in FIG.

  The present invention can be variously modified without being limited to the above embodiment. For example, the manufacturing apparatus of this adhesive covering can be suitably used when the support original fabric 211 has stretchability, but the support original fabric 211 does not have stretchability. But it can be used.

  Moreover, in the said embodiment, the end board 32 superimposed on the 2nd vacuum drum 30 shall reciprocate at a small angle. However, it is assumed that the end plate 32 is fixed, and an air supply / exhaust portion (not shown) independent from the air intake portion 32a is provided at a position adjacent to the laminating roller 50, and an electromagnetic for switching between intake air and exhaust air to this air supply / exhaust portion A valve or the like may be provided.

  Moreover, when it is not necessary to advance the to-be-adhered article continuous band 214 at high speed, the end part 32 overlapped with the second vacuum drum 30 may not include the injection part 32b and the air supply / exhaust part.

  In the peeling mechanism 40 of the above embodiment, the object 215 is prevented from following the release separator 213 by the winding prevention roller 42. However, depending on the adhesive force of the adhesive layer 212, the winding prevention roller 42 is changed. It does not necessarily have to be provided.

  In the embodiment, the peripheral speed of the laminating roller 50 is higher than the peripheral speed of the second vacuum drum 30. However, the laminating roller 50 may be a free roller, and the product separator original fabric 220 may be pulled at a speed higher than the peripheral speed of the second vacuum drum 30.

DESCRIPTION OF SYMBOLS 10 ......... First vacuum drum 20 ......... Die roll 30 ......... Second vacuum drum 31b ... Communication hole 32 ......... End plate 32a ... Suction part 32b ... Injection part 40 ......... Peeling mechanism 41 ......... Knife edge 41a ... Pointed end 41b ... Folding surface 42 ...... Enrollment prevention roller 50 ...... Lamination roller 200 ... Intermediate product 210 ... Substrate original material 211 ... Base material Anti-212 …… Adhesive layer 213 …… Release separator 214 …… Substrate continuous band 215 …… Subject 220… Product separator original

Claims (3)

A plurality of adherends formed from an adherend original fabric having a strip-shaped support original fabric, an adhesive layer provided on the entire surface of the support original fabric, and a strip-shaped release separator laminated on the adhesive layer An apparatus for manufacturing an adhesive covering for manufacturing an intermediate product in which an object is attached to a strip-shaped product separator original with a gap,
A first vacuum drum on which an original material to be stuck with the support original material facing outside is partially wound, and advances in the length direction while adsorbing the original material to be stuck When,
A die roll having a support original of an original to be attached on the first vacuum drum and a die roll having a blade for making a cut in the adhesive layer, wherein an adherend is attached to the release separator. A die roll forming a continuous band;
The second continuous drum is a second vacuum drum spanned from the first vacuum drum, and is a second vacuum drum that advances in the length direction while adsorbing the continuous article continuous band with the release separator facing outside. The vacuum drum,
A peeling mechanism for peeling the release separator of the object continuous band on the second vacuum drum from the object;
A pasting roller for winding a product separator original fabric on which each of the pasted articles of the pasted article continuous band is transferred ;
The peeling mechanism includes a knife edge having a fold end surface that folds and follows the release separator in a direction opposite to a traveling direction of the pointed end portion applied to the release separator and the pasted article continuous band, and adjacent to the knife edge. arranged, the apparatus for manufacturing the pressure-sensitive adhesive covering material, characterized that you have a winding included prevention roller for pressing the object to be attached material on the second vacuum drum. The second vacuum drum includes a plurality of communication holes communicating with the outer peripheral surface and at least one end surface,
An end plate that is superimposed on an end surface of the second vacuum drum where the communication hole is exposed, and has an intake portion that communicates with the plurality of communication holes and sucks air in a range that adsorbs the adherend connecting band. The apparatus for producing an adhesive covering according to claim 1, further comprising an end plate provided.   The apparatus for producing an adhesive covering according to claim 2, wherein the end plate includes an injection unit for exhausting air from the communication hole.

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