JP6114224B2 - Annular fabric bonding equipment - Google Patents

Description

  The present invention relates to a technique for annularly adhering cloth having stretchability constituting garments, and in particular, when adhering such cloth, the cloths can be annularly bonded with sufficient adhesive strength. The present invention relates to a bonding apparatus.

  In recent years, in the field of clothing (especially underwear), there has been proposed a method and an apparatus for adhering fabrics of respective parts constituting an underwear to each other with an adhesive, rather than sewing (sewing) with needles and sewing threads. By bonding the fabrics with an adhesive, it is possible to eliminate the unevenness of the sewing thread formed on the surface of the fabric by sewing, and to make the front and back surfaces of the underwear smooth. Thus, by making the adhesive part thin, it is possible to manufacture an underwear such as an undershirt that has a good touch and does not resonate with the outer.

In such an apparatus for adhering the cloth, the adhesive is usually heated to be liquid and discharged from a nozzle. The dough is arranged in the vicinity of the nozzle and sequentially transferred. As a result, an adhesive is attached to the cloth, and another cloth is then superimposed on the cloth with the adhesive attached, and the cloths are bonded together by pressure bonding.
An example of such a fabric bonding apparatus is disclosed in Japanese Patent Publication No. 11-512129 (Patent Document 1) and Japanese Patent Publication No. 2003-528227 (Patent Document 2).

  In the bonding method disclosed in Patent Document 1, two pieces of cloth made of a thin and flexible other material such as a woven fabric or leather or a synthetic sheet used for manufacturing clothes, lining articles, furniture and the like are used. A method of adhering with an additional material, wherein an adhesive deposit is formed on at least one piece of cloth along an adhering area provided on at least one of the cloth pieces, and then the adhering area of the two pieces of cloth The adhesive portions are formed by pressing each other together. In this bonding method, heating is performed only from one cloth piece side when pressing.

  The bonding apparatus disclosed in Patent Document 2 is an apparatus for bonding two fibers or similar products with a hot melt layer, and is a means for advancing the hot melt layer together with the fibers. Means for carrying one fiber and a very thin hot melt layer together in a cooled state, and heating to act on the hot melt layer and plasticize the hot melt layer until the surface contacts the first fiber Means and means for carrying the second fiber and pressing the two fibers until the plasticized hot melt layer contacts the first fiber. In this bonding apparatus, the hot melt layer is plasticized by heating means before the first fiber and the second fiber come into contact with each other.

  By the way, in an upper body garment (for example, an undershirt), it is a stretch knitted fabric having a circularly knitted body part and left and right sleeve parts, and the body part and the sleeve part are knitted separately. The armhole of the sleeve is sewn in an annular shape with the shoulder around the arm. Japanese Patent Laid-Open No. 2003-326602 (Patent Document 3) discloses a method of sewing a seam portion (for example, a sleeve portion that is a seam portion between a waistline portion and a sleeve portion) when manufacturing a wet suit or the like, although it is not an undershirt. Further, an apparatus for preventing or reinforcing water leakage by welding a seal tape to a seam portion is disclosed, and it is also disclosed that a seam portion is welded directly without sewing the seam portion.

The welding and bonding apparatus disclosed in Patent Document 3 is a welding and bonding apparatus in which a sheet-shaped material is fed between a pair of rollers, and the sheet-shaped material is heated and bonded by a heating unit while pressing with the rollers. The roller includes a common roller and a first roller and a second roller that are in pressure contact with the common roller, and the first roller is provided at the tip of a cylinder portion disposed in a direction orthogonal to the material traveling direction. The second roller is provided at the tip of the arm portion disposed along the material traveling direction, and the cylinder portion and the arm portion are rotated by a driving source so that the first and second rollers are the common roller. And the heating means is a horn that applies ultrasonic vibration to a material wound around the first or second roller pressed against the common roller. To. According to this welding and joining apparatus, even in the case of welding joining of an annular part of a material such as an armhole part or welding joining of a part along the length direction of a tubular material such as a sleeve part or a crotch part, By alternately switching the arm portion to the operating position, it is possible to continuously weld and bond with one device. Therefore, it is not necessary to divide the work into separate processes using a dedicated machine as in the prior art, and the equipment cost and manufacturing cost can be greatly reduced.

Japanese National Patent Publication No. 11-512129 Special table 2003-528227 gazette JP 2003-326602 A

  In these bonding techniques disclosed in Patent Document 1 and Patent Document 2, the adhesive is applied over almost the entire width of the bonding region along the conveying direction of the cloth or web to be bonded. For this reason, the adhesive is applied to almost the entire area of the bonding region, and the fabrics and the like are bonded to each other. Moreover, although it does not show a prior art document concretely, it is also well-known that the heat bonding adhesive tape is supplied to the cloth and the cloths are bonded to each other.

  However, in such a case, the adhesive is applied in a sheet form and bonded to almost the entire area of the bonding region. For this reason, since the adhesion region is planar, high adhesion strength can be secured between the adhesion surfaces of the fabric, but the stretchability of the fabric is hindered, and the stretchability inherent to the fabric is impaired. . Clothing such as underwear composed of the fabric thus bonded does not have elasticity even if the bonded portion has sufficient strength.

  That is, both of these Patent Documents 1 and 2 only disclose a bonding technique for bonding two sheet-like cloth pieces in a planar and entire manner, and do not disclose a technique for bonding them in an annular shape. In adhering the fabric in a ring shape, it is necessary to match the adhesion start point and the adhesion end point. However, matching the start point and the end point in this manner is an important issue due to the stretchability of the fabric. Adhesion technology that adheres two-dimensionally and entirely does not solve such problems. On the other hand, although patent document 3 discloses welding a seam part directly, without sewing the armhole part which is a seam part of a waist part and a sleeve part, the detail of the technique welded annularly without sewing Is not disclosed at all.

The present invention has been developed in view of the above-described problems, and the object of the present invention is to bond the fabrics in a ring shape with sufficient adhesive strength when bonding the fabrics having elasticity. An object is to provide an annular fabric bonding apparatus.
It is another object of the present invention to provide an annular dough bonding apparatus that makes it possible to bond doughs in a ring shape without shifting a predetermined bonding position.

  It is another object of the present invention to provide an annular fabric bonding apparatus that allows the fabrics to be bonded in a ring shape without impairing the stretchability of the fabric while ensuring the adhesive strength.

In order to achieve the above object, the annular fabric bonding apparatus according to the present invention employs the following technical means.
That is, the annular fabric bonding apparatus according to the present invention bonds the fabrics having elasticity in a ring shape. An adhesive is applied to the adhesion region of at least one of the surfaces facing the fabric. This annular fabric bonding apparatus has a hollow cylindrical shape that is rotatably supported by a central axis, and the annular fabric in a state in which a bonded region is superimposed on a bonding region and is stretched at a desired elongation rate. Gripping means for covering and gripping the outer surface of the paper, and rotary pressing means for pressing the cloth gripped by the gripping means and applying a rotational force to the cloth to rotate it around the central axis.

Preferably, the rotary pressure contact means includes a roller that rotates at least in contact with the adhesion region, and presses the cloth and applies a rotational force to the cloth by sandwiching the cloth between the roller and the gripping means. (Roller system).
More preferably, the rotational pressure contact means includes at least two rollers that rotate at least in contact with the adhesion region and an endless belt wound around the rollers, and the fabric is sandwiched between the belt and the gripping means. By doing so, it can be configured to include means for pressing the fabric and applying a rotational force to the fabric (belt roller system).

  As described above, the rotary pressure contact means may be either a roller system or a belt roller system in which a belt is wound around at least two rollers. As will be described later, when a heater is not used (in the case of low-temperature bonding), the roller method may be preferable because the heating time may be short. Further, in the case of this roller system, it is preferable that the rotation of the hollow cylinder described above is also synchronized. Further, in either the roller method or the belt roller method, the hollow cylinder side (only) may be rotated.

More preferably, the annular fabric bonding apparatus further includes a heating unit for heating the bonding region, and the heating unit is a heater that contacts the belt from the opposite side that contacts the fabric, and the gripping device A heater having a shape along the cylindrical outer peripheral surface of the means may be configured to include means for heating the dough via the belt.
More preferably, an elastic body can be formed on the outer surface of the hollow cylinder.

More preferably, the inner cylinder side of the hollow cylinder can be configured to form a bag portion into which a cloth that does not include an adhesive region is pushed.
More preferably, the circumference of the outer surface of the hollow cylinder or the circumference including the elastic body can be configured to be 101% to 130% as compared with the circumference of the cloth to be annularly bonded.
More preferably, the adhesive comprises an adhesive portion where the fabrics are continuously bonded by forming the adhesive into a predetermined shape, and a non-adhesive portion where the fabrics are not bonded by the adhesive. It can apply | coat with an adhesive pattern and can comprise so that the said adhesion part and the said non-adhesion part may be repeatedly provided in the predetermined direction. And it can comprise so that the said adhesive pattern may be zigzag shape or a curve shape, or the said adhesive pattern may be dot shape.

  According to the present invention, for example, when adhering around the arm of the sleeve to the armhole of the body part, which is elastic like a knitted fabric constituting an undershirt, An annular fabric bonding apparatus that can be bonded in a ring shape can be provided. Furthermore, it is possible to provide an annular fabric bonding apparatus that makes it possible to bond fabrics in a ring shape without shifting a predetermined bonding position. Furthermore, it is possible to provide an annular fabric bonding apparatus that enables the fabrics to be bonded in a ring shape without impairing the stretchability of the fabric while ensuring the adhesive strength.

It is a perspective view showing the whole annular cloth adhesion device concerning an embodiment of the invention. FIG. 2 is a partially enlarged view of FIG. 1 (position A side as a preparation zone). FIG. 2 is a partially enlarged view of FIG. 1 (position B side as an adhesion zone). It is a front view (position A side which is a preparation zone) of the cyclic | annular fabric bonding apparatus shown in FIG. It is a left view (position B side which is an adhesion | attachment zone) of the cyclic | annular fabric bonding apparatus shown in FIG. It is a right view (position D side which is a taking-out zone) of the cyclic | annular fabric bonding apparatus shown in FIG. It is a top view of the cyclic | annular fabric bonding apparatus shown in FIG. It is a control block diagram of the annular fabric bonding apparatus shown in FIG. It is a front view of the undershirt adhere | attached with the cyclic | annular fabric bonding apparatus shown in FIG. FIG. 10 is a partially enlarged view of FIG. 9. It is a perspective view which shows the wearing condition of the undershirt of FIG. It is a figure which shows the adhesion procedure of the body and sleeve part of the undershirt of FIG. It is a figure corresponding to FIG. 12, Comprising: It is a figure which shows the adhesion procedure of the body and sleeve part of the undershirt which concerns on a modification.

  Hereinafter, an annular fabric bonding apparatus (hereinafter simply referred to as an bonding apparatus) 1000 according to an embodiment of the present invention will be described with reference to the drawings. The annular fabric bonding apparatus 1000 is a device for bonding clothes fabrics having stretchability. For example, a hot-melt adhesive (synonymous with thermoplasticity) is applied in advance in a desired bonding pattern. Glue the dough.

  Here, a preferable adhesive is appropriately selected depending on the material of the fabric, the adhesive strength, the adhesion site, and the like, and the heat melting temperature of the adhesive follows the selection. In some cases, an adhesive having a heat melting temperature close to room temperature may be selected. In this case, since the dough can be bonded without being heated only by pressing the doughs together, the bonding apparatus 1000 according to the present embodiment is used for the dough. The heater for heating is not an essential component. When a heater for heating the dough is not provided as described above, the roller method may be preferable because the heating time may be short rather than the belt roller method in which a belt is wound around two rollers. .

  In addition, before bonding by the bonding apparatus 1000, an adhesive is applied to the fabric with a desired bonding pattern by a coating apparatus. The physical properties of the adhesive used in the bonding apparatus 1000 according to the present embodiment are bonded immediately after being applied to the cloth in the coating apparatus, even if attached to other objects without being peeled off from the cloth to be bonded at room temperature. In this bonding apparatus 1000, the cloth to which the adhesive is applied is bonded to another cloth by pressure welding (or heating in the pressure welding state). For this reason, after apply | coating an adhesive agent to material | dough with an application | coating apparatus, it can perform suitably adhere | attaching material | dough with this adhesion | attachment apparatus 1000. FIG. This is preferable in that the work for preparing (setting, temporary bonding) the bonded portion of the fabric can be easily performed at the position A of the bonding apparatus 1000.

  In the bonding apparatus 1000, it is also preferable to apply an adhesive to the fabric with a desired bonding pattern. For example, an adhesive is applied to the fabric with a desired adhesive pattern at position D, and a fabric to which adhesive is applied at position A and a fabric to be bonded (other fabric) are prepared (setting, temporary bonding), It is also preferable to bond the fabric coated with the adhesive and the other fabric by pressure welding at position B (or heating in the pressure welding state). In this way, it is preferable in the point which can perform the operation | work from application | coating of the adhesive agent to cloth | dough in 1 unit | set of the adhesive device 1000.

  Although the details will be described later as an operation, it is assumed that the object to be bonded by the bonding apparatus 1000 according to the present embodiment is a cloth forming an underwear, and the underwear is formed by bonding the cloth. Furthermore, this underwear is a female undershirt that can be worn under an outer garment (for example, a thin knit), feels good, and does not resonate with the outer.

  In this case, any material may be used as long as the fabrics are bonded to each other. When the fabrics are bonded in the bonding apparatus 1000 according to the present embodiment, the body parts and the sleeves that are separately knitted are connected to the armholes of the body parts. Even when the arm around the sleeve is bonded in an annular shape at the shoulder (that is, when another member is bonded), the hem of the body part is folded back and the waistline is bonded in an annular shape (that is, one member) Is also included).

[overall structure]
FIG. 1 is an overall perspective view of the bonding apparatus 1000 according to the present embodiment. The bonding apparatus 1000 includes a main shaft 1010 in the vertical direction, a swivel table 1020 composed of a plane perpendicular to the main shaft 1010, a swivel bearing 1030 that pivotally supports the main shaft 1010 so that the swivel table 1020 can be horizontally rotated, and Four sets of gripping portions (mainly composed of a dough-gripping hollow cylinder 1040 and a horizontal shaft 1070, which will be described later) are provided on the turning table 1020 and grip the dough to be bonded.

These gripping portions are provided on the turning table 1020 at an angular interval of 90 degrees from each other. When the operator turns 90 degrees in the direction of arrow R (1) by 90 degrees (as described later, the turning stopper is The gripping portion rotates in the horizontal direction from position A as the preparation zone to position B as the adhesion zone → position C as the fixation zone → position D as the take-out zone. In this bonding apparatus 1000, in addition to the gripping portion on the turning table 1020 described above, the cloths to be bonded that are gripped to the gripping portion by the operator at the position A are provided at the position B. When the hollow cylinder 1040 for gripping the cloth in the gripping part rotates once, the cloth is pressed to press the cloths together, and the bonding area where the adhesive is applied is heated by the heater to bond the cloths to each other. A unit, a control unit 1300 for controlling the entire bonding apparatus 1000 as described above, and a frame 1400 are provided.

Note that if the bonding apparatus 1000 can form the position A as the preparation zone and the position B as the bonding zone, the fixing process and the removal process can be performed at the position B. Therefore, it is sufficient that there are at least two gripping portions.
FIG. 2 is an enlarged perspective view showing a perspective view on the position A side as a preparation zone, and FIG. 3 is an enlarged perspective view showing a perspective view on the position B side as an adhesion zone. FIG. 4 is a front view of the bonding apparatus 1000 (position A side as a preparation zone), FIG. 5 is a left side view (position B side as an adhesion zone), and FIG. 6 is a right side view (take-out zone). FIG. 7 shows a top view of the position D side).

  As shown in these drawings, the bonding apparatus 1000 bonds the fabrics having elasticity in an annular shape. The cloth may be two sheets or one sheet, but in the following, it is an apparatus that bonds two sheets of cloth (the undershirt body cloth and the sleeve cloth as described later). It will be explained as being. A hot-melt adhesive is applied to the adhesion region of at least one of the surfaces of the two fabrics facing each other. Here, it is assumed that an adhesive is applied in advance to a predetermined adhesion region of one of the two fabrics.

  The gripping portion described above includes a shaft 1070 extending in the horizontal direction and a hollow cylinder for gripping a cloth (hereinafter simply referred to as a hollow cylinder) having a hollow cylindrical shape rotatably supported by the shaft 1070 with the shaft 1070 serving as a rotation center axis. (It may be described as a cylinder) 1040, two bearings 1080 per one shaft 1070 for rotatably supporting the shaft 1070, and one rotation of the hollow cylinder 1040 by a rotary encoder at position B to be described later In order to achieve this, an encoder detection roller (which may be simply referred to as a detection roller in the following) 1090 provided for one shaft 1070 is provided. Two bearings 1080 are provided for one shaft 1070, and four sets of these bearings 1080 are provided at equiangular intervals on the turning table 1020, and a detection roller 1090 is provided between the two bearings 1080. ing. When the turning table 1020 is turned in the direction indicated by the arrow R (1), the detection roller 1090 is positioned approximately every 90 degrees by the turning stopper, and the turning is temporarily stopped.

  At the position A of the bonding apparatus 1000, the outer surface of the hollow cylinder 1040 is covered with an annular cloth in a state where the bonding area is superimposed on the bonding area and is stretched at a desired stretch rate, thereby gripping the cloth. Is done. In the position B, the bonding apparatus 1000 presses the fabric gripped by the hollow cylinder 1040 and applies a rotational force to the fabric so as to make one rotation around the shaft 1070 as a central axis (a fabric to be described later). A feed belt motor 1200, a dough feed belt 1220 such as Teflon (registered trademark), an encoder lifting air cylinder 1230, and a unit lifting air cylinder 1250 as main components, and a heater 1260 having an arbitrary configuration.

Further, the rotary pressure contact unit includes at least two rollers (driving roller 1208, driven roller 1210) that rotate at least in contact with the bonding region, and an endless fabric feed belt (hereinafter simply referred to as a belt) wound around these rollers. 1220, and the belt 1220 and the outer surface of the hollow cylinder 1040 sandwich the fabric to press the fabric and feed the fabric to rotate the driving roller 1208 to apply a rotational force to the fabric. A belt motor 1200 (hereinafter sometimes simply referred to as a motor) 1200 is provided. Note that, as described above, it is possible to configure the rotary pressure welding unit only with a roller that does not include a belt.

  Further, the rotary pressure contact unit further includes a unit elevating air cylinder 1250 that moves the rollers (the driving roller 1208, the driven roller 1210) and the belt 1220 in the vertical direction so as to approach and separate from the hollow cylinder 1040 at the position B. In the rotary pressure contact unit, the belt 1220 is brought close to the hollow cylinder 1040 to press the belt 1220 against the cloth, and the belt (drive roller 1208, driven roller 1210) is driven to rotate in the direction indicated by the arrow R (2). It rotates in the direction of arrow R (2). The air pressure supplied to the unit elevating air cylinder 1250 is adjusted by a precision regulator (not shown), so that the belt 1220 is pressed against the cloth according to the outer diameter of the hollow cylinder 1040, the kind of cloth and adhesive, and the like. Is controlled. Here, in the rotary pressure contact unit, the mechanism capable of moving up and down may be the hollow cylinder 1040 or both of the rollers (the driving roller 1208 and the driven roller 1210) and the belt 1220, or both. In other words, any of the rollers (the driving roller 1208, the driven roller 1210), the belt 1220, and the hollow cylinder 1040 may be configured to be able to approach and separate from each other. The roller system is also the same as long as any one of them is configured to be able to approach and separate from each other.

  Further, the bonding apparatus 1000 may further include a lift heater (hereinafter simply referred to as a heater) 1260 for heating the bonding region. The heater 1260 is in contact with the belt 1220 from the opposite side in contact with the fabric and has a shape along the outer peripheral surface of the hollow cylinder 1040. The heater 1260 heats the dough via the belt 1220. For this reason, the belt 1220 is a material such as heat-resistant Teflon (registered trademark).

  Further, an elastic body 1050 such as silicon or a heat-resistant sponge is formed (adhered) on the outer surface (one turn) of the hollow cylinder 1040 so that the cloth does not slip from the hollow cylinder 1040. In this case, since the length of the annular bonding varies depending on the size of the undershirt, for example, the diameter of the hollow cylinder 1040 or the thickness of the elastic body 1050 can be changed to cope with various sizes. It is preferable to make it. For example, the hollow cylinder 1040 (and the elastic body 1050) can be easily exchanged for the shaft 1070 by cutting off male screws at both ends of the shaft 1070 and screwing with the female screws cut by the rotary knob 1060. It is preferable.

  The hollow cylinder 1040 is a hollow cylindrical container with the opposite side of the main shaft 1010 as the bottom, and the main shaft 1010 side (inner cylinder side) is open. This open part forms a bag part into which the dough that does not include the bonding area is pushed. However, the position and shape of the bottom of the hollow cylinder 1040 are not limited to such positions and shapes. There may be a rib-like bush near the center inside the hollow cylinder 1040, or both may be open. That is, the opening position (opening direction) is not limited, and it can be appropriately selected whether the opening side (bottom side) is inside or outside. Further, it is preferable that the hollow cylinder 1040 has a small diameter other than the bonding portion (here, the side into which the cloth is pushed). This is because if the diameter of the hollow cylinder other than the bonded portion is large, the fabric is tensioned and wrinkles are likely to occur. It is also preferable to air blow in a direction to stretch the set fabric so that the set fabrics do not overlap to prevent wrinkles.

  The hollow cylinder 1040 has a peripheral length of the outer surface (when the elastic body 1050 is not provided or thin) or a peripheral length including the elastic body 1050 is 101% to 130% compared to the peripheral length of the cloth to be annularly bonded. is there. That is, at the position A of the bonding apparatus 1000, the elastic body 1050 provided on the outer surface of the hollow cylinder 1040 has a desired stretch ratio (101% to 130%) in a state where the bonded area is overlapped with the bonded area. A ring-shaped fabric stretched in the above is covered. In this way, the fabric in a state stretched at a desired stretch rate is pressed by the rotary press unit at position B.

Each part of the bonding apparatus 1000 according to the present embodiment having such characteristics will be described.
[Each component configuration]
-Turning part When this bonding apparatus 1000 is rotated 90 degrees in the direction of arrow R (1), the turning stopper 1100 acts. The turning stopper 1100 includes a recess corresponding to the outer peripheral shape of the detection roller 1090 and is connected to the stopper shaft 1120 via a stopper stay 1110. The stopper shaft 1120 is provided so as to be movable in the vertical direction by a stopper shaft holder 1140. The stopper shaft 1120 is provided with a pressure spring 1130 that inhibits turning by pressing the turning stopper 1100 against the detection roller 1090.

  It should be noted that the rotation stopper 1100 does not rotate with respect to the rotation of the detection roller 1090, and that the operator can easily set the fabric in the hollow cylinder 1040 at the position A (easily swivels around the main shaft 1010). The spring constant of the pressure contact spring 1130 is determined so that the fabric does not become difficult to set in the hollow cylinder 1040 by rotating around the shaft 1070.

・ Rotary pressure welding unit (conveyance function)
The cloth conveyance function in the rotary pressure welding unit will be described. The fabric conveying function includes a belt 1220 that is pressed against the fabric, a motor 1200 that is a driving source for rotating the belt 1220, a driving roller 1208 and a driven roller 1210 around which the belt 1220 is wound, and the belt 1220. A tension roller 1212 for applying appropriate tension is provided. The drive roller 1208 is connected to the end of the drive shaft 1206, and the timing pulley 1204 is connected to the end of the drive shaft 1206 opposite to the drive roller 1208.

  The tension roller 1212 is rotatably supported by a tension applying member 1214, the tension applying member 1214 is supported by a tension applying shaft 1216, and a spring engagement is applied to the end of the tension applying member 1214 on the opposite side of the tension roller 1212. A portion 1218 is provided. The spring engagement portion 1218 is provided with a spring (not shown), and a force in the arrow T direction acts on the tension applying member 1214 by the spring, and as a result, the force in the arrow T direction is also applied to the tension roller 1212. Acts to apply an appropriate tension to the belt 1220.

  A timing pulley (the motor side is not shown) is connected to the rotating shaft of the motor 1200, and the driving force of the motor 1200 is transmitted to the timing pulley 1204 connected to the driving shaft 1206 via the timing belt 1202. As a result, the belt 1220 rotates in the direction indicated by the arrow R (2) by the driving force of the motor 1200. When the dough is sandwiched between the belt 1220 and the hollow cylinder 1040 (when the rotary pressure welding unit is on the arrow X (2) side as will be described later), when the motor 1200 is rotated, the belt 1220 and the hollow cylinder 1040 The dough is rotated in the direction indicated by R (2) and conveyed in the direction indicated by arrow R (2).

Note that the speed of the cloth conveyance speed, that is, the rotation speed of the motor 1200 is determined by the operator so that the bonding process can be performed with high work efficiency based on the kind of cloth, the kind of adhesive, the temperature of the heater 1260, and the like. The target speed is input to the motor and is controlled by a motor drive driver 1530 described later, and the actual speed is displayed on the speed display unit 1240.
・ Rotary pressure welding unit (pressure welding function)
A motor 1200 (including a heater 1260 that realizes a heating function to be described later) and the like that realize a transfer function in the rotary pressure welding unit are stacked on the unit holder 1252. The unit holder 1252 is moved in the vertical direction of arrow X (1) -arrow X (2) by the unit lifting air cylinder 1250.

Here, the direction indicated by the arrow X (1) (the upper side of the unit elevating air cylinder 1250) is the position at the timing when the turning table 1020 turns or the motor 1200 is not operating, and is the standby position of the rotary pressure welding unit. is there. The direction indicated by the arrow X (2) (the lower side of the unit elevating air cylinder 1250) is the timing at which the turning table 1020 does not turn and the timing at which the motor 1200 is operated, which is the position at the operating position of the rotary pressure contact unit. The upper and lower ends of the unit elevating air cylinder 1250 are detected by a proximity switch or the like.

  In the operating position of the rotary press unit, the press contact force to the fabric by the belt 1220 must be appropriate. In this case, when the hollow cylinder 1040 including the elastic body 1050 is changed to one having a different diameter, or the type of cloth and adhesive is changed, the air pressure supplied to the unit lifting air cylinder 1250 is changed by the precision regulator. It has been changed to achieve an appropriate pressure contact force.

・ Rotary pressure welding unit (heating function)
The heater 1260 for realizing the heating function in the rotary pressure welding unit is loaded on the unit holder 1252 together with the motor 1200 and moved in the vertical direction of arrow X (1) -arrow X (2) by the unit lifting air cylinder 1250. Is done. The temperature of the heater 1260 is controlled by, for example, a heater temperature controller 1520 that maintains a target temperature by PID control or the like, and an appropriate temperature is maintained according to the type of fabric and adhesive.

  The heater 1260 has a concave shape along the outer peripheral surface of the hollow cylinder 1040 (exactly, the elastic body 1050), and is a fabric that is sandwiched and pressed between the hollow cylinder 1040 (exactly the elastic body 1050) and the belt 1220. The heated dough is heated. In addition, since the outer diameter of the hollow cylinder 1040 (and / or the elastic body 1050) is changed, the concave shape of the heater 1260 is also the maximum curvature of the hollow cylinder 1040 (and / or the elastic body 1050) to be changed. It is preferable that the curvature is moderate enough to cope with the minimum curvature.

  The heater 1260 is disposed inside the belt 1220 wound around the driving roller 1208 and the driven roller 1210. The heater 1260 is not in contact with the belt 1220 at the standby position of the rotary pressure welding unit on the arrow X (1) side, and the heater 1260 is in contact with the belt 1220 at the operating position of the rotary pressure welding unit on the arrow X (2) side. The belt 1220 is pressed toward the hollow cylinder 1040 by the elevating air cylinder 1250, the cloth is sandwiched between the belt 1220 and the hollow cylinder 1040 (more precisely, the elastic body 1050), and the cloth is indicated by the arrow R (2). The fabric is heated by the heater 1260 while being conveyed in the direction.

・ Rotary pressure welding unit (rotation detection function)
A rotary encoder 1236 or the like that realizes a rotation detection function in the rotary pressure welding unit is loaded on a shaft holder 1232 that is different from the unit holder 1252, and an arrow Y is raised by an encoder raising and lowering air cylinder 1230 that is different from the unit raising and lowering air cylinder 1250. (1) —Moved in the vertical direction of arrow Y (2). The shaft holder 1232 is an L-shaped thin plate, and a vertical hole is provided with a round hole through which the detection shaft of the rotary encoder 1236 passes and a U-shaped groove. The detection shaft of the rotary encoder 1236 protruding from the round hole is provided with an encoder detection urethane roller (hereinafter sometimes simply referred to as a detection urethane roller) 1234, and the main shaft 1010 side of the vertical surface (detection urethane). A rotary encoder 1236 is provided on the back side of the roller 1234. Note that the cylinder of the encoder lifting air cylinder 1230 is connected to the horizontal surface of the shaft holder 1232. Here, the U-shaped groove and the shaft 1070 are not normally in contact with each other, and the rotatable portion of the bonding apparatus 1000 rotates suddenly (due to an external factor or the like) during the pressure contact, resulting in poor adhesion. This U-shaped groove (mainly) realizes a stopper role to prevent. The role of suppressing the vibration of the shaft 1070 when the motor 1200 is operated is realized mainly by the press contact spring 1130.

Here, the direction indicated by the arrow Y (1) (the upper end side of the encoder lifting air cylinder 1230) is the position at the timing when the turning table 1020 turns or the motor 1200 is not operating, and is on the standby position side of the rotary pressure welding unit. It is. The direction indicated by the arrow Y (2) (the lower end side of the encoder lifting air cylinder 1230) is the position at the timing when the turning table 1020 does not turn or when the motor 1200 is activated and the rotary encoder 1236 detects the rotation state of the hollow cylinder 1040. The operating position side of the rotary pressure welding unit. The upper and lower ends of the encoder lifting air cylinder 1230 are detected by a proximity switch or the like.

  When the encoder elevating air cylinder 1230 is in the arrow Y (2) direction, the detection urethane roller 1234 is in contact with the detection roller 1090 without slipping. For this reason, at the operating position of the rotary pressure contact unit (the motor 1200 is in the operating state), the rotary encoder 1236 causes the rotation of the hollow cylinder 1040 (same as the rotation of the shaft 1070) to detect the detection roller 1090 and the detection urethane roller. 1234 can be detected (accurately by increasing the resolution because the diameter is larger than that of the shaft 1070).

As described above, even if the outer diameter of the hollow cylinder 1040 (and / or the elastic body 1050) is changed, since the rotation of the shaft 1070 is detected, the hollow cylinder 1040 makes one rotation (the entire adhesive region is pressed). Can be detected accurately.
[Control block]
The bonding apparatus 1000 having such a configuration is controlled by the control unit 1300. The control unit 1300 is provided with, for example, a control panel 1310 provided with various instruments, a main switch (breaker) 1340 for supplying power to the bonding apparatus 1000, and a power supply to the bonding apparatus 1000. It comprises a power lamp 1330 for indicating that it is in the middle, and an operation button 1320 for operating and stopping the press-contact conveyance unit.

  More specifically, the control unit 1300 will be described with reference to the control block diagram shown in FIG. In the control block diagram shown in FIG. 8, for example, a mode including a motor drive driver, a cylinder drive driver, and an output interface is shown. However, even if such a driver and / or interface is not actually provided, It suffices that the bonding apparatus 1000 is configured to realize a desired operation. As such a mode, a motor is not provided and the speed of the motor is controlled by a speed controller and the operation is controlled only by ON / OFF control from the CPU, or an air cylinder is adopted as the cylinder. For example, the operation may be controlled only by operating the solenoid valve.

  As shown in FIG. 8, the control unit 1300 receives various input signals according to a program and parameters (such as a conveyance speed) stored in advance, executes arithmetic processing, and outputs output signals (control signals) to various output devices. An arithmetic unit for output (here, CPU 1500), an input interface 1510 for receiving an input signal from the operation button 1320, a heater temperature controller 1520 for controlling the temperature of the heater 1260 described above, and the motor 1200 described above are controlled. A motor drive driver 1530 for controlling the air cylinder (encoder elevating air cylinder 1230 and unit elevating air cylinder 1250), and an output interface 1550 for turning on / off the power lamp 1330. And illustration Not comprised of a memory (storing a program and parameters).

  An input interface 1510, a motor drive driver 1530, a cylinder drive driver 1540, an output interface, and 1550 are connected to the CPU 1500 via a bus or the like. A heater 1260 is connected to the heater temperature controller 1520 and controls energization of the heater so as to maintain the heater 1260 at a desired temperature. Note that the heater temperature controller 1520 may or may not be connected to the CPU 1500. In the case of connection, for example, when the measured temperature of the heater is within a predetermined range of the set temperature (when it is a desired temperature), the permission signal is output from the heater temperature controller 1520 to the CPU 1500. The received CPU 1500 permits the operation of the bonding apparatus 1000 (lowering the unit elevating air cylinder 1250 in the direction indicated by arrow X (2), lowering the encoder elevating air cylinder 1230 in the direction indicated by arrow Y (2), The motor 1200 can be controlled to be allowed to rotate. By controlling in this way, it is possible to prevent the bonding operation from being performed even when the temperature of the heater 1260 is low.

In the following description, it is assumed that when the main switch 1340 is turned on, the temperature of the heater 1260 is controlled to the set temperature by the heater temperature controller 1520.
The motor drive driver 1530 is connected to a motor 1200, a speed command unit 1238, and a speed display unit 1240, and the cylinder drive driver 1540 is connected to a unit lift air cylinder 1250 and an encoder lift air cylinder 1230. As described above, the cylinder drive driver 1540 is described as being connected to an air cylinder to control the operation, but may be an electric cylinder instead of an air cylinder. In other words, as long as the above-described function can be realized, an air driving method, an electric driving method, or another driving method may be used.

  The rotary encoder 1236 to which the detection urethane roller 1234 is connected is connected to the CPU 1500 (or may be a motor drive driver 1530) and counts pulses during the rotation of the hollow cylinder 1040 so that the hollow cylinder 1040 makes one rotation. Then, the rotation of the motor 1200 is stopped. Here, the number of rotations of the hollow cylinder 1040 is not limited to one, and there is a possibility of two or more rotations depending on temperature conditions. For example, when the outside air temperature (which indicates the room temperature where the bonding apparatus 1000 is installed) is low, the rubber on the receiving side is cold, so the hollow cylinder 1040 is rotated twice or more at the start of operation, and as time passes It is also possible to change the number of rotations of the hollow cylinder 1040.

The CPU 1500 that has received the operation signal from the operation button 1320 controls the bonding apparatus 1000 as follows, for example.
Before operating the operation button 1320 (operation), the operator rotates the hollow cylinder 1040 in a state where an appropriate brake is applied by the turning stopper 1100 at the position A while providing it on the outer surface of the hollow cylinder 1040. The elastic body 1050 is covered with a fabric in a state where the bonded area is superimposed on the bonded area. In this case, a hollow cylinder 1040 provided with an elastic body 1050 corresponding to the circumference of the annular fabric to be bonded is screwed to the shaft 1070 by the rotary knob 1060. In such fabric preparation work, the hollow cylinder does not slide due to the action of the elastic body 1050 and the fabric is stretched at a desired stretch rate (101% to 130%). The elastic body 1050 provided on the outer surface of 1040 is put on. The operator rotates the turntable 1020 90 degrees around the main shaft 1010 so that the fabric stretched at a desired stretch rate moves from position A to position B. In addition, the cloth | dough which does not contain an adhesion | attachment area | region is pushed into the inner cylinder side of the hollow cylinder 1040 by the operator.

  While the hollow cylinder 1040 on which the fabric is set is swiveling from the position A to the position B in the direction indicated by the arrow R (1), the non-slip action by the elastic body 1050 and the fabric that does not include the adhesion region are open side of the hollow cylinder 1040 The fabric is not slid down from the hollow cylinder 1040 due to the action of preventing the fabric from being caught in each part of the bonding apparatus 1000 by being pushed into the (bag portion). Further, since the hollow cylinder 1040 on which the fabric is set turns to the position B, the hollow cylinder 1040 located at the position D turns to the position A and is held by the turning stopper 1100, so that the turning table 1020 can be easily turned. Not to be.

  In this state, the operator operates the operation button 1320 (operation). It is assumed that the CPU 1500 detects that the hollow cylinder 1040 is located at positions A to D by a proximity switch (not shown). When the CPU 1500 detects that the operation button 1320 (operation) has been operated, the CPU 1500 outputs an approach command signal to the unit elevating air cylinder 1250 so that the rotary pressure contact unit loaded on the unit holder 1252 is in the standby position (arrow). It is moved from the indication X (1) side) to the operating position (arrow X (2) side). Also, along with this operation (or before this operation, or with a time difference from this operation), the CPU 1500 outputs an approach command signal to the encoder lift air cylinder 1230, and the rotary encoder mounted on the shaft holder 1232 1236 and the urethane roller for detection 1234 are moved from the standby position (arrow Y (1) side) to the operating position (arrow Y (2) side).

Next, the CPU 1500 outputs a rotation command signal to the motor 1200, the motor 1200 is rotated at a desired rotation speed (desired fabric feed speed), and the drive roller 1208, the driven roller 1210, and the belt 1220 are indicated by an arrow R ( 2) It is rotated in the direction. At this time, since the belt 1220 is in pressure contact with the hollow cylinder 1040 (more precisely, the elastic body 1050) with the cloth interposed therebetween, the hollow cylinder 1040 is rotated in the direction indicated by the arrow R (2) by the belt 1220. When the hollow cylinder 1040 rotates, the shaft 1070 rotates and the detection roller 1090 rotates. The rotation of the detection roller 1090 is detected by the rotary encoder 1236 via the detection urethane roller 1234. When the pulse signal from the rotary encoder 1236 is input, the CPU 1500 accumulates the number of pulses from the start of rotation, and when the accumulated number of pulses reaches the number of pulses corresponding to one rotation of the hollow cylinder 1040, the CPU 1500 A rotation stop signal is output, and the rotation of the motor 1200 is stopped.

  Note that one rotation of the hollow cylinder 1040 may be detected by the rotary encoder 1236 and a rotation end signal may be input to the CPU 1500 so that the CPU 1500 stops the motor 1200, and the rotation end signal (without the CPU 1500 being passed). ) Direct input to the motor drive driver 1530 may cause the motor drive driver 1530 to stop the motor 1200.

  Thereafter, the CPU 1500 outputs a separation command signal to the unit elevating air cylinder 1250, so that the rotary press contact unit loaded on the unit holder 1252 moves from the operating position (arrow X (2) side) to the standby position (arrow X ( 1) to the side). In addition, along with this operation (or before this operation, or with a time difference from this operation), the CPU 1500 outputs a separation command signal to the encoder lift air cylinder 1230, and the rotary encoder loaded on the shaft holder 1232 1236 and the urethane roller for detection 1234 are moved from the operating position (arrow Y (2) side) to the standby position (arrow Y (1) side).

In addition, in the case where the bonding apparatus 1000 is controlled in this way by the CPU 1500, when the operation button 1320 (stop) is operated by the operator, all operations (except for the heater temperature controller 1520) of the bonding apparatus 1000 are performed. Stop immediately or return to the standby position and stop.
[Operation]
The operation of the bonding apparatus 1000 having the above structure will be described. In the explanation of the operation, in order to adhere the sleeve part of the undershirt to the body (this body is provided with a cloth double part), the sleeve part (with no adhesive applied) to the armhole of the body (adhesive is pre-applied) As an example, the case of bonding is described. In the description of this operation, first, an undershirt and an adhesive application pattern (adhesion pattern) will be described.

-Undershirt of operation | movement object The front view of the undershirt 10 is shown in FIG. As shown in FIG. 9, this undershirt 10 has a body part 11 that is circularly knitted and left and right sleeve parts 12. The body part 11 and the sleeve part 12 are stretch knitted fabrics knitted separately, and as will be described later, the body part 11 and the sleeve part 12 are joined at the shoulder by a bonding structure using an adhesive. Thus, the entire undershirt 10 is formed.

  Here, the expansion / contraction direction of the undershirt 10 will be described. The body part 11 is the direction in which the horizontal direction in FIG. 9 is the course direction (relative to the wale direction) and is easy to expand and contract (easily stretches along the waist), and the sleeve part 12 is along the circumference of the arm. The course direction is the course direction (relative to the wale direction), and is the direction that is more easily expanded and contracted (easily stretched around the arm). The course direction means the same direction as the knitting direction in the horizontal knitted fabric, and the wale direction means a direction orthogonal to the course direction.

In the case of using the course direction as described above, the armhole of the body part 11 is difficult to expand and contract with respect to the arm periphery direction of the sleeve part 12 (details will be described later, but there is a difference in elasticity in the armhole). The direction around the arm is easy to expand and contract. In this case, when joining the sleeve portion 12 to the body portion 11 by general sewing, it is necessary to sew the body portion 11 which is difficult to stretch to the sleeve portion 12 which is easy to stretch, so that the arm of the sleeve portion 12 can be sewn. The length in the rotation direction is designed to be shorter than the arm hole of the body part 11. On the other hand, in the case of a bonded structure using an adhesive, which will be described later, if the arm-around direction length of the sleeve portion 12 is designed to be shorter than the arm hole of the body portion 11 in this manner, The direction length may be insufficient. For this reason, the arm portion direction length of the sleeve portion 12 is the same as the arm hole of the body portion 11 or is designed to be longer than the arm hole of the body portion 11. In addition, when using a horizontal knitted fabric for an undershirt, it is as above-mentioned, but when using a warp knitted fabric, a course direction and a wale direction are reverse to the case of a horizontal knitted fabric. Accordingly, the horizontal direction in FIG. 9 is the wale direction, and the direction orthogonal to the wale direction is the course direction.

  Here, the fabric with stretchability (stretchable knitted fabric having a stretch direction) refers to other including a direction in which the stretch rate in one direction out of the above-described directions (course direction and wale direction) is orthogonal thereto. It refers to a stretchable knitted fabric having a direction larger than the direction as the stretch direction. In such a stretch knitted fabric, one of the above-mentioned directions (course direction and wale direction) or a direction in the vicinity of the one direction is the direction (maximum) in which the stretch rate is the largest in the knitted fabric. Stretching direction).

  In addition, the body part 11 may join the front body and the back body by the bonding structure using an adhesive agent. Further, the sleeve 12 may be a circular knitted fabric knitted by a circular knitting machine as it is, or a knitted fabric knitted by a flat knitting machine or a circular knitting machine is cut, and then an adhesive is used. It may be joined in a cylindrical shape by a laminating structure using. The sleeve 12 in the undershirt 10 is assumed to be the latter.

In any case, the body part 11 and the left and right sleeve parts 12 knitted separately are bonded together with an adhesive and are not sewn. Furthermore, this undershirt 10 does not have any sewn part, and each part knitted separately is bonded by a bonding structure.
The upper part of the body part 11 and corresponding to the neck of the wearer is formed with a heel that is struck in a shallow U-shape as an opening, and is below the body part 11 and is the waist part of the wearer. The lower end portion of the body is formed as an opening in the portion corresponding to, and the cuff portion for taking out the hand as the opening is formed in the portion corresponding to the wrist portion of the wearer at the end portion of the sleeve portion 12. Has been. The ends of the fabrics in these openings are made of a fabric (stretchable knitted fabric that does not require peripheral processing) whose peripheral edge is cut off.

  Furthermore, the characteristic structure of the undershirt 10 is demonstrated with reference to FIG. 10 and FIG. Here, FIG. 10 is a partially enlarged view of the left half of the undershirt 10, and FIG. 11 is a perspective view showing a wearing state of the undershirt 10. 10 shows a state in which the undershirt 10 is turned upside down, and FIG. 11 shows a clothing state in which the undershirt 10 is not turned upside down.

  As shown in these drawings, in this undershirt 10, the upper left and right ends of the body part 11 are provided with a bonding structure 112 using an adhesive in order to form a heel part, and the sleeve part 12 is a flat knitting machine. Alternatively, in order to cut a knitted fabric knitted by a circular knitting machine into a cylindrical shape, a bonding structure 120 using an adhesive is provided, and the body 11 and the sleeve 12 are joined at the shoulder. And a bonding structure 110 using an adhesive.

  These bonding structures 110, 112, and 120 basically have the same structure as described later. Among the bonding structures, the bonding structures 112 and 120 are linear, whereas the bonding structure 110 is characterized by being curvilinear and perimeter. Conventionally, an adhesive is used. Joining was impossible. The bonding structures 112 and 120 including the bonding structure 110 are realized by the bonding structure shown below. In the following, since the bonding structures 110, 112, and 120 have the same structure, the bonding structure 110 will be described.

  The bonding structure 110 is a method of attaching a fabric by bonding a body part 11 (elastic fabric 1) and a sleeve 12 (elastic fabric 2), which are elastic fabrics, through an adhesive pattern P formed by an adhesive. It is a mating structure. With reference to FIG. 12 which shows the adhesion procedure of the body part 11 and the sleeve part 12, this bonding structure is demonstrated in detail. In FIG. 12, the undershirt 10 is turned upside down, and the body joint portion of the sleeve portion 12 is superimposed on the front side of the sleeve joint portion of the body portion 11 (the sleeve portion 12 is on the upper side). On the contrary, the body joint part of the sleeve part 12 may overlap the back side of the sleeve joint part of the body part 11 (the body part 11 is on top). Here, it is preferable that the adhesive is applied to the body part 11 side, but the adhesive may be applied to the sleeve part 12 side. However, in the following description, it is assumed that the adhesive is applied to the body part 11 side.

  As shown in FIG. 12, the adhesive pattern P includes an adhesive portion 3 to which the stretchable fabric 1 and the stretchable fabric 2 are continuously bonded by forming an adhesive in a predetermined shape (zigzag shape in FIG. 12). The adhesive portion 3 is formed with an opening in a plan view, and the stretchable fabric 1 and the stretchable fabric 2 are not bonded by an adhesive, and the adhesive portion 3 and the nonbonded portion 4 are in a predetermined direction ( In FIG. 12, it is repeatedly provided in a direction having stretchability around the arm of the sleeve 12.

As described above, the adhesive pattern P is composed of the adhesive portion 3 and the non-adhesive portion 4, and the adhesive is bonded to the adhesive surfaces 1a of the stretchable fabric 1 and the stretchable fabric 2, as shown in FIG. It means the shape in plan view of the bonded portion that is thermally bonded to the surface 2a.
The bonding portion 3 is a portion formed by continuously repeating a predetermined shape (a zigzag shape in FIG. 12) in a predetermined direction (a direction having elasticity along the arm of the sleeve 12 in FIG. 12). is there.

  More specifically, in the case where the shape of the bonding pattern P is a zigzag shape, the bonding portion 3 has a minimum repeating unit U constituting the bonding portion 3 of “<” shape or “>” as shown in FIG. "<" Shape or ">" shape, which is the minimum repeating unit U, is a portion in which the stretchable fabric 1 and the stretchable fabric 2 are repeatedly and repeatedly arranged in a direction having stretchability. That is.

The zigzag shape shown in FIG. 12 repeats a predetermined zigzag amplitude (amplitude orthogonal to the stretchable direction of the fabric) and a predetermined zigzag pitch at a fixed period.
On the other hand, the non-adhesive part 4 is an opening formed by the adhesive part 3 in a plan view, and the stretchable fabric 1 and the stretchable fabric 2 are not bonded by an adhesive.
More specifically, the non-bonding portion 4 is the minimum repetition of the bonding portion 3 in each of the stretchable fabric 1 and the stretchable fabric 2 as shown in FIG. 12 when the shape of the adhesive pattern P is a zigzag shape. This is a portion where the adhesive fabric is not applied from the opening end of the “<” shape or “>” shape, which is the unit U, to the inner predetermined region, and the stretchable fabric 1 and the stretchable fabric 2 are not bonded.

Since the non-adhesive portion 4 is a region where the adhesive is not applied, the non-adhesive portion 4 becomes a stretchable portion that is not hindered by the adhesive even if the fabric is stretched in the stretchable direction.
Specifically, when the non-adhesive portion 4 is pulled in the direction in which the fabric is stretched, the non-adhesive portion 4 extends in a stretchable direction as a stretch, so that the stretch is not hindered by the adhesive.
When bonding the stretchable fabrics with the adhesive pattern P in a zigzag shape, the stretch force and stretchability of the stretchable fabrics can be controlled by changing the above-mentioned predetermined zigzag amplitude and the predetermined zigzag pitch. Can do.

In addition, when making the shape of the adhesion pattern P into a zigzag shape, the period is not particularly limited, and does not need to be a constant period as shown in FIG. The period of the zigzag shape may be appropriately determined depending on the fabric characteristics, the bonding position, the manufacturing conditions, and the like.
Further, the shape of the adhesive pattern P is not particularly limited to a zigzag shape, and various adhesive patterns P can be mentioned. Among various shapes of the adhesive pattern P, a zigzag shape or a curve shape is preferable. This is because the shape is easy to apply when applying (applying) the adhesive to the fabric. The adhesive pattern P applicable to the undershirt 10 is characterized in that it is not strip-like or planar but linear.

In addition, the number of repetitions of the bonding portion 3 and the non-bonding portion 4 constituting the bonding pattern P in a predetermined direction may be at least two times, and is not limited to the predetermined number. In addition, when applying to the bonding structure of the undershirt 10, it becomes the predetermined number of times according to the dimension.
Here, when the number of repetitions is 2, the adhesive pattern P is configured to be arranged in the order of the adhesive 3, the non-adhesive part 4, and the adhesive part 3, when the number of repetitions is 3 times or more. The adhesive pattern P has a configuration in which the adhesive part 3, the non-adhesive part 4, the adhesive part 3, the non-adhesive part 4,.

Furthermore, the arrangement pattern of the bonding part 3 and the non-bonding part 4 constituting the bonding pattern P is not particularly limited, and may be irregularly configured.
Although it does not specifically limit as an adhesive agent, For example, as above-mentioned, a thermoplastic resin (synonymous with a thermomeltable resin) is mentioned.
Examples of such thermoplastic resins include polyurethane hot melt resins, polyester hot melt resins, polyamide hot melt resins, EVA hot melt resins, polyolefin hot melt resins, styrene elastomer resins, and moisture curable urethane resins. A hot melt resin, a reactive hot melt resin, or the like is preferably used, and a reactive hot melt resin is particularly preferable. Reactive hot melt resin has high adhesive strength and can be bonded in a short time, so it has a curved line, such as bonding the entire armhole circumference in the body part and the entire arm circumference in the sleeve part, It is also suitably used in places where the bonded shape does not match. The details of the adhesive that does not have thermoplasticity (heat melting property) will be described later.

  The undershirt 10 is formed by bonding the sleeve portion 12 to the armhole to which the adhesive is applied with the bonding pattern P after the buttock of the body portion 11 is formed by the bonding structure 112. Is done. At this time, the bonding apparatus 1000 is used. In addition, it is also preferable that the bonding structures 112 and 120 are bonded using the bonding apparatus 1000. In addition, when the periphery is folded and bonded as a peripheral processing instead of bonding the fabrics of different parts, the peripheral edge of one fabric having an adhesive applied to the peripheral portion is bonded using the bonding apparatus 1000. It is also preferable to do.

As shown in FIG. 12A, the bonding structure 110 is bonded as shown in FIG. 12B by bonding the sleeve portion 12 and the arm hole of the body portion 11 to which the adhesive is applied by the bonding apparatus 1000. Is formed.
-Modification of the undershirt of an operation | movement object Below, with reference to FIG. 13, the modification of the undershirt 10 mentioned above is demonstrated. The undershirt which concerns on this modification differs in the point that the adhesion pattern in a bonding structure is not the adhesion pattern P mentioned above but the dotted | punctate adhesion dot pattern D as shown in FIG. Since the other configuration is the same, the description of the undershirt other than the adhesive pattern will not be repeated here. Since FIG. 13 corresponds to FIG. 12, the undershirt 10 is turned over.

  As shown in FIG. 13, the adhesive dot pattern D is a stretchable fabric by forming the adhesive in a dot shape (in FIG. 13, a set of points repeated at a pitch L (1) and an interval L (2)). 1 and the stretchable fabric 2 are bonded to each other, and the stretchable fabric 1 and the stretchable fabric 2 are not bonded to each other by the adhesive. The non-bonding portion 104 is repeatedly provided. In FIG. 13, the three points of the interval L (2) are repeatedly provided at the pitch L (1) in the direction having the stretchability around the arm of the sleeve 12, but this is limited to this. is not.

  The bonding portion 103 and the non-bonding portion 104 exhibit the same effects as the bonding portion 3 and the non-bonding portion 4, respectively. That is, the non-adhesive portion 104 is an area where the adhesive is not applied and becomes a stretchable portion that is not hindered by the adhesive even if the fabric is stretched in the stretchable direction. The non-adhesive portion 104 extends in a stretchable direction as a stretch, and thus exhibits the same effect as the adhesive pattern P that is not hindered by the adhesive.

  As shown in FIG. 13, the pitch L (1) and the interval L (2) may be appropriately determined depending on the fabric characteristics, the bonding position, the manufacturing conditions, and the like. Further, the shape of the point set of the adhesive dot pattern D is not particularly limited to a shape in which a predetermined number of points is repeated, but it is 3 points, 2 points, 1 point, 2 points, 3 points, 2 points, 1 point, 2 points. It may be a point set made up of repeated dot patterns (staggered patterns) such as three points. Furthermore, the size of the bonded portion 103 (the diameter of the dots = the dot diameter) may be any size with the maximum diameter being that the non-bonded portion 104 can be formed between the adjacent bonded portions 103.

The pitch L (1), the interval L (2), the dot pattern, and the dot diameter are determined by comprehensively considering the fabric elongation strength in the undershirt, the preferred stretch direction in the undershirt, the peel strength, and the like. It should be. The dot diameter is preferably determined in consideration of the adhesive application amount or / and the application area ratio (area ratio of the bonding portion 103 to the bonding portion 103 and the non-bonding portion 104) per unit area of the cloth. Further, the adhesive pattern may be formed by appropriately combining the adhesive pattern P and the adhesive dot pattern D.

-Adhesive in the undershirt to be operated The adhesive constituting the adhesive pattern (adhesive pattern P, adhesive dot pattern D) is not particularly limited, and as described above, it is made of, for example, a thermoplastic resin. A heat-melted adhesive or hot melt is preferably used, but other adhesives will be described below.

It is also possible to use a liquid adhesive (solvent adhesive or water-soluble adhesive) formed by dissolving a resin in a solvent or water as an adhesive constituting the above-described adhesive pattern (particularly, adhesive dot pattern D). .
In the case of using such a liquid adhesive, it is possible to screen-print the above-mentioned adhesive pattern on one of the objects to be bonded and to bond the other object to be bonded in a room temperature environment. It is also possible to form a single adhesive by dissolving a plurality of resins in a solvent. For example, a resin dissolved in a solvent is formed as a base layer on the fabric, and a different resin dissolved in the solvent is formed thereon. It can also be formed as a single adhesive by printing or application. These adhesive forming methods are not particularly limited. In particular, there is an advantage that the solidification rate can be controlled by their reaction by dissolving a plurality of resins in a solvent and using them as one adhesive. It is also possible to control the solidification rate by irradiating the adhesive with UV. Also, by forming different adhesive layers on each fabric to be bonded and bonding the different adhesive layers (the different adhesives formed on each fabric react to adhere to each other) It is also possible to control the solidification rate.

-Operation | movement of an adhesion | attachment apparatus Adhesive agent is previously apply | coated to the armhole of the body part 11 in the undershirt 10 mentioned above, and the operation | movement which adhere | attaches the sleeve part 12 on the armhole of the body part 11 by the adhesive device 1000 which concerns on this Embodiment is demonstrated. . In the following, the bonding apparatus 1000 is in the standby position (the unit lifting air cylinder 1250 is raised, the rotary pressure welding unit is in the standby position (arrow X (1) side), and the encoder lifting air cylinder 1230 is raised. When the hollow cylinder 1040 in which the fabric is set at the position A is turned to the position B at the standby position (arrow Y (1) side))), the rotary encoder 1236 and the detection urethane roller 1234 are turned to the position B. The operation of the bonding apparatus 1000 after operating the button 1320 (operation) will be described. The undershirt to be operated is not the undershirt shown in FIG. 13 (not the undershirt shown in FIG. 13), but the operation of the bonding apparatus 1000 is the same for the undershirt shown in FIG.

  First, the rotary pressure welding unit loaded on the unit holder 1252 is moved from the standby position (arrow X (1) side) to the operating position (arrow X (2) side). As a result, the heater 1260 that has not been in contact with the belt 1220 at the standby position of the rotary pressure welding unit on the side indicated by arrow X (1) contacts the belt 1220, and the supplied air pressure is adjusted by a precision regulator. As a result, the belt 1220 is pressed toward the hollow cylinder 1040 and the belt 1220 and the hollow cylinder 1040 (more precisely, the elastic body 1050) hold the fabric.

Further, the rotary encoder 1236 and the detection urethane roller 1234 loaded on the shaft holder 1232 are moved from the standby position (arrow Y (1) side) to the operating position (arrow Y (2) side). As a result, the detection urethane roller 1234 that has not been in contact with the detection roller 1090 on the arrow Y (1) side contacts the detection roller 1090.
Next, the motor 1200 starts to rotate, and rotational force is transmitted to the timing belt 1202, the timing pulley 1204, and the drive shaft 1206, and the drive roller 1208 rotates in the direction indicated by the arrow R (2). When the driving roller 1208 rotates, the belt 1220 to which an appropriate tension is applied from the driven roller 1210 and the tension roller 1212 is driven in the direction indicated by the arrow R (2). Since the belt 1220 is pressed toward the hollow cylinder 1040 by the unit elevating air cylinder 1250, the belt 1220 is transmitted to the hollow cylinder 1040 by the driving force of the belt 1220 and is sandwiched between the belt 1220 and the hollow cylinder 1040 (more precisely, the elastic body 1050). The made dough is conveyed in the direction of arrow R (2).

  Since the hollow cylinder 1040 rotates during the operation of the motor 1200, the shaft 1070 rotates, the detection roller 1090 rotates, and the rotation of the detection roller 1090 is detected by the rotary encoder 1236 via the detection urethane roller 1234. Is done. When the pulse signals from the rotary encoder 1236 are accumulated and the accumulated number of pulses reaches the number of pulses corresponding to one rotation of the hollow cylinder 1040 (when the sleeve 12 is bonded to the entire circumference of the armhole of the body part 11), The rotation of the motor 1200 stops.

Thereafter, the rotary pressure welding unit loaded on the unit holder 1252 is moved from the operating position (arrow X (2) side) to the standby position (arrow X (1) side), and the rotary encoder 1236 loaded on the shaft holder 1232 and The detection urethane roller 1234 is moved from the operating position (arrow Y (2) side) to the standby position (arrow Y (1) side).
As described above, when the two fabrics are nipped and conveyed, the thermoplastic resin (adhesive) interposed between the stretchable fabrics is melted by heating and pressing from at least one of the two fabrics. As a result, the adhesive is liquefied, and then the stretchable fabrics are joined by cooling and solidification. More specifically, in the bonding apparatus 1000, the bonding surfaces 1a and 2a of the stretchable fabric 1 and the stretchable fabric 2 are combined to form a predetermined adhesive pattern P between the stretchable fabric 1 and the stretchable fabric 2. A thermoplastic resin is interposed and placed on the bonding apparatus 1000, and the thermoplastic resin interposed between the stretchable fabric 1 and the stretchable fabric 2 is heated and pressed from at least one of the two fabrics by the bonding apparatus 1000. By melting, the thermoplastic resin is thermally melted, and then the elastic fabric 1 and the elastic fabric 2 are fixed by being removed from the heater, cooled and solidified (position C and position D).

  In this way, the bonding pattern P intervening between the stretchable materials can be formed in a zigzag shape, and a fabric bonding structure capable of controlling the stretch force and stretchability of the stretchable materials can be realized. By finishing the bonded portion very thinly compared to stitching, it is possible to realize an undershirt 10 that is comfortable to touch and does not resonate with the outer.

  In addition, when the body part 11 and the sleeve part 12 to which the adhesive is applied are bonded by the bonding apparatus 1000 (showing a state in which the undershirt 10 is turned over), as shown in FIG. In an inverted state, an adhesive is applied to the periphery of the back side of the armhole, and the sleeve portion 12 is bonded to the upper side thereof. In this way, when the sleeve part is overlapped with the armhole, even if the adhesive pattern protrudes from the end part of the sleeve part due to the variation in the overlap, it can be hidden from the body part 11 and hidden from view. . In addition, it is preferable because variations in the end portions of the sleeve portions at the time of bonding can be prevented from being seen from the table.

  Further, in the bonding of the arm holes and the like as described above, when the fabrics are overlapped and heated and bonded together, the appearance of the overlapped portion may be deteriorated depending on the shape of the fabric or / and the overlapping portion. At the position B of the bonding apparatus 1000, the fabric is not overlapped at the same time as applying heat, but the operator does not exhibit a strong bonding action at the position A before bonding. It is preferable to set the dough on the hollow cylinder 1040 while finely adjusting the alignment position as necessary.

  As described above, according to the bonding apparatus 1000 according to the present embodiment, when the stretchable fabrics are bonded to each other through the adhesive, the fabrics can be bonded in a ring shape with sufficient bonding strength. . Further, since the hollow cylindrical bag part holds and adheres the cloth other than the bonding area while being positioned at the position A, the cloth is annularly formed without shifting a predetermined bonding position. Can be glued to. Furthermore, since the adhesive is applied in a desired adhesive pattern, the fabrics can be bonded to each other in an annular shape while securing the adhesive strength and without inhibiting the stretchability of the fabric.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  The present invention provides an adhesive device capable of adhering in an annular shape without interfering with the stretchability of the fabric while securing the adhesive strength when the fabrics having stretchability are bonded through an adhesive. Can be used.

10 Undershirt 11 Body (Elastic fabric 1)
12 Sleeve (elastic fabric 2)
3 Bonding part 4 Non-bonding part 110, 112, 120 Bonding structure P Bonding pattern 1000 Annular fabric bonding device (bonding device)
1010 Main shaft 1020 Swivel table 1030 Swivel bearing 1040 Hollow cylinder (hollow cylinder) for gripping fabric
1050 Elastic body 1060 Rotation knob 1070 Shaft 1080 Bearing 1090 Encoder detection roller (detection roller)
DESCRIPTION OF SYMBOLS 1100 Turning stopper 1110 Stopper stay 1120 Stopper shaft 1130 Pressure spring 1140 Stopper shaft holder 1200 Material feed belt motor (motor)
1202 Timing belt 1204 Timing pulley (driven side)
1206 Drive shaft 1208 Drive roller 1210 Driven roller 1212 Tension roller 1214 Tension applying member 1216 Tension applying shaft 1218 Spring engaging portion 1220 Fabric feed belt (belt)
1230 Encoder elevating air cylinder 1232 Shaft holder 1234 Encoder detection urethane roller (detection urethane roller)
1236 Rotary encoder 1238 Speed command section 1240 Speed display section 1250 Unit lifting air cylinder 1252 Unit holder 1254 Slide unit 1260 Lifting heater (heater)
1300 Control unit 1310 Control panel 1320 Operation button 1330 Power lamp 1340 Main switch (breaker)
1400 frame 1410 adjuster 1500 CPU
1510 Input interface 1520 Heater temperature controller 1530 Motor drive driver 1540 Cylinder drive driver 1550 Output interface

Claims (10)

An annular fabric bonding device for annularly bonding fabrics having elasticity,
An adhesive is applied to the adhesive region of at least one of the surfaces facing the fabric,
It has a hollow cylindrical shape that is pivotally supported by a central axis, and grips an annular fabric in a state where the bonded region is overlapped with the bonded region and stretched at a desired stretch rate on the outer surface of the hollow cylinder. Gripping means for
An annular dough bonding apparatus, comprising: a press-contacting means for pressing the dough gripped by the gripping means and applying a rotational force to the dough to rotate around the center axis.   The rotary pressure contact means includes a roller that rotates at least in contact with the adhesion region, and presses the cloth and applies rotational force to the cloth by sandwiching the cloth between the roller and the gripping means. The annular fabric bonding apparatus according to claim 1, comprising:   The rotary pressure contact means includes at least two rollers that rotate at least in contact with the adhesion region and an endless belt wound around the rollers, and by holding the fabric between the belt and the gripping means, The annular fabric bonding apparatus according to claim 1, comprising means for pressing the fabric and applying a rotational force to the fabric. The annular fabric bonding apparatus further includes a heating means for heating the bonding area,
The heating means is a heater that comes into contact with the belt from the opposite side that comes into contact with the cloth, and a heater having a shape along the outer peripheral surface of the cylinder of the gripping means heats the cloth through the belt. The annular cloth bonding apparatus according to any one of claims 1 to 3, further comprising means for   The annular fabric bonding apparatus according to any one of claims 1 to 4, wherein an elastic body is formed on an outer surface of the hollow cylinder.   The annular fabric bonding apparatus according to any one of claims 1 to 5, wherein an inner tube side of the hollow cylinder forms a bag portion into which a fabric that does not include a bonding region is pushed.   The perimeter of the outer surface of the hollow cylinder or the perimeter including an elastic body is 101% to 130% as compared with the perimeter of a cloth to be bonded in an annular shape. Annular fabric bonding device. The adhesive is
An adhesive part in which the fabrics are continuously bonded by forming the adhesive into a predetermined shape;
The dough is applied with an adhesive pattern composed of non-adhesive portions that are not bonded by the adhesive,
The annular fabric bonding apparatus according to claim 1, wherein the bonding portion and the non-bonding portion are repeatedly provided in a predetermined direction.   The annular fabric bonding apparatus according to claim 8, wherein the bonding pattern has a zigzag shape or a curve shape.   The annular fabric bonding apparatus according to claim 8, wherein the bonding pattern has a dot shape.