JPH05340Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention is particularly useful for bonding along the seams of sewing materials such as wet suits used for diving, which cannot be bonded with a heat-melting adhesive called hotmelt. The present invention relates to a seal tape adhesion device for joints of silicon-based materials.

[Prior Art] Generally, when sewing a wetsuit or the like using a synthetic fiber sheet or a synthetic resin sheet as a material, after sewing with a sewing machine, sealing is performed to prevent water leakage and to strengthen the seams (stitched parts). Apply tape along the seam.

This work is usually done by spraying hot air onto a heat-melting adhesive applied to the back side of the sealing tape, melting the adhesive in advance, and attaching the sealing tape to the seam of the material. There is known an apparatus that continuously applies a seal tape along a seam by feeding it between a roller made of steel and a roller made of metal such as iron.

[Problems to be solved by the invention] By the way, this type of device can be used to seal along the armholes, which are the joints between the waist and sleeves, and along the joints in the length direction, such as the sleeves and crotches. When processing, unlike when processing a relatively wide flat part, for example, when sealing an armhole, it is necessary to seal annularly along the circumference of the sleeve. As with cylinder-type sewing machines, a cylindrical cylinder part with a processing part, in this case a pressure roller, is required at the tip, and sealing of seams in the length direction of sleeves and crotches requires a cylinder part. When sealing is performed continuously along the length of a cylindrical object, it is necessary to perform a continuous sealing process along the length of the cylindrical object. In this case, a special machine is used depending on the area to be sealed, such as a pressure roller and an arm disposed along the feed direction of the material, and the work process is divided into This necessitated an increase in equipment costs and man-hours due to seal processing, etc.

Furthermore, silicone-based sheet materials have the disadvantage that silicone has poor mold release properties and cannot be pasted with sealing tape using the conventional apparatus described above.

The present invention was developed in view of these circumstances, and includes the armholes, which are the joints between the waist and sleeves,
The joints along the length of the sleeve and crotch tubular parts,
The object of the present invention is to provide a sealing tape bonding device for silicone-based materials that can perform continuous sealing processing with the same device and can also reliably adhere sealing tapes to silicone-based materials.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an adhesive that applies a silicone resin adhesive to a silicone resin tape that is fed out from a first feed position and polymerized on the surface of a conveying tape. a coating mechanism, a branching roller that separates the silicone resin tape coated with the adhesive and the conveying tape and sends them out in a branched manner; and a first winding roller that winds up the carrying tape branched out from the branching roller.
It consists of a winding mechanism, a first pressure roller and a second pressure roller that are in pressure contact with a common roller that winds the anti-adhesive tape that is fed out from the second feeding position, and the first roller is aligned with the direction of movement of the material. A second roller is provided at the tip of the cylinder section disposed in the orthogonal direction, and a second roller is provided at the tip of the arm section disposed along the direction of movement of the material, and the cylinder section and the arm section are rotated. configuring the first and second rollers to be able to selectively press against the common roller, and directing the applied adhesive toward the material,
In order to press the silicone resin tape fed between the material and the anti-adhesive tape from the branch roller to the material, the common pressure roller is moved to a pressure bonding position close to the first roller or the second roller and the seal line is moved. At the end position of the seal line, the common roller is connected to the first roller or the second roller.
a common roller contact/separation mechanism for retracting the common roller to a standby position separated from the roller; a cutting and holding mechanism that holds the unpressed starting end of the silicone resin tape and cuts the tip when the common roller is retracted; and this cutting and holding mechanism. A sealing tape bonding device for a silicone-based material is equipped with a moving mechanism for selectively moving the silicone resin tape from a holding position, a temporary fixing position to a material, and a common roller pressing position to a retracted position. This is what I did.

[Function] According to the present invention, the silicone resin tape coated with the silicone resin adhesive by the adhesive application mechanism is coated with the silicone material by the cooperation of the common roller and the first and second rollers. It can be applied to the joint surface to ensure high liquid-tightness or airtightness, and the silicone adhesive can be applied to the seam, that is, the perforation hole, by the pressing force of the pressure roller and the pressing member. can be infiltrated into the area to greatly improve the sealing performance of this area.

In addition, sealing of annular parts such as armholes and sealing along the length of cylindrical materials such as sleeves and crotch parts can be performed by alternating between the cylinder part and the arm part. can.

[Example] Hereinafter, an example of the present invention will be described based on the drawings.

Fig. 1 is a front view showing an embodiment of the seal tape adhesion device according to the present invention, Fig. 2 is a partial side view, and Fig. 3 is a front view of Fig. 2. In these figures, 1 is a motor. , a main body housing housing various drive sources such as an air cylinder, a power transmission mechanism, etc., 2 is an arm, and 3 is a common roller provided at the tip of the arm 2 so as to be movable up and down. This common roller 3 is rotatably attached to the tip of a contact/separation mechanism 4 formed by an arm 2, and the base end of the contact/separation mechanism 4 is connected to a support pin 4a attached to the base end of the main body casing 1. It is designed to be rotated and held by a drive source such as a cylinder device (not shown) about a rotation center to a crimping position shown by a solid line and a standby position shown by a phantom line.

The main body casing 1 includes a cylinder part 10 and an arm part 1.
1 is disposed so as to be rotatable, and can be rotated within a predetermined angle by a drive source such as an air cylinder disposed within the main body casing 1.

That is, the cylinder part 10 has an arm 13 attached to the tip of the drive source 12, and further has an arm 13 attached to the tip of the drive source 12.
Attach the cylinder 14 to the tip of the cylinder 1.
Pressure rollers 16 and 17 having the same diameter and having outer peripheries made of silicone rubber or the like are attached to both ends of a shaft 15 which is rotatably supported within the shaft 15.

One of the pressure rollers 16 serves as a first roller that selectively presses against the common roller 3, and by rotating the arm 13, it can be moved to the standby position shown by the two-dot chain line in FIG. , as shown by the solid line, between the operating position where the common roller 3 is pressed and the arrow A in the figure
As shown in the figure, it is designed to be able to move back and forth.

The other pressure roller 17 comes into pressure contact with a drive roller 18 provided protruding from the side wall of the main body casing 1 at the position where the pressure roller 16 comes into pressure contact with the common roller 3, and is driven by the drive roller 18. It rotates. A cover 19 partially covers the drive roller 18.

The arm 13 is rotated using an air cylinder or the like disposed inside the main body housing 1 as a driving source.

Further, the arm portion 11 is attached to the tip of a cylindrical rotation shaft 20 that projects horizontally from the side wall of the main body housing portion 1.
It is perpendicular to the rotating shaft 20 and is integrally provided along the material feeding direction. This arm portion 11 rotatably supports a pressure roller 21 as a second roller at its tip, and this pressure roller 21 is supported on the rotating shaft 21.
It is configured to be rotated by a drive source disposed within the main body casing 1 via a shaft 22 and a timing belt 23 provided within the main body casing 1 .

Further, the rotation shaft 20 is rotated within a predetermined angle by an air cylinder or the like disposed inside the main body casing 1, and the pressure roller 21 is placed in the lower position shown by the solid line in FIG. It is designed to be able to reciprocate in the direction shown by arrow B in the figure between this position and the operating position where it comes into pressure contact with the common roller 3 shown by the two-dot chain line.

The cylinder portion 10 and the arm portion 11 are operated simultaneously by a changeover operation of a changeover switch provided on a pedal 25 or an operation panel 26, and when sealing a cylindrical material such as an armhole in the circumferential direction. The state is switched to the state shown in FIG. 3, and when sealing is to be performed along the length of a cylindrical portion such as a sleeve portion or a crotch portion, the state is switched to the state shown by the imaginary line in FIG. 1.

A polymer tape 24 obtained by polymerizing a silicone resin tape (hereinafter simply referred to as silicone tape) 9 is rotatably attached to the first feeding position 1A of the main body casing 1, with the polymer tape 24 being wound around the surface of the transport tape 8. It will be done. The polymer tape 24 fed out from the first feeding position 1A reaches the adhesive application position 27 along guide rollers R1 to R3, and is guided by a roller 28 rotatably mounted at this position to the first feeding position 1A.
It is sent out to the tension adjustment mechanism 29.

A paste-like silicone resin adhesive 31 is applied by an adhesive application mechanism 30 to the surface of the polymer tape 24 guided by the roller 28 at the adhesive application position 27, that is, to the silicone tape 9. That is,
The adhesive application mechanism 30 includes an adhesive injection machine 30B having a downward nozzle 30A attached to its tip for injecting adhesive 31, and an injection passage 30C of this injection machine 30B.
The injection passage 30 is removably attached to the opening.
C and a filling tank part 30D that supplies an adhesive 31 to the filling tank part 30D.
TKAB-002) is filled. And injection machine 3
0B is a support pin 30 attached to the main body housing part 1
Centered around E, it is rotated and held by a drive source such as a cylinder device (not shown) between an adhesive application position shown by a solid line and a standby position shown by a phantom line.

The first tension adjustment mechanism 29 has a pair of left and right adjustment arms 29A, 29B with tension adjustment rollers TR1, TR2 rotatably attached to their lower ends, and a connecting member 29D spanned between these adjustment arms 29A, 29B. and cylinder device 29E
The upper end of the adjustment arm 29A is pivotally attached 29a to the main body casing 1, and
A substantially central portion of B is pivotally mounted with a pin 29b, and
The tip of the rod 29e of the cylinder device 29E is connected to the force point of the adjustment arm 29A. Therefore, by the operation of the cylinder device 29E, the adjustment arms 29A, 29B are rotated and held at the first adjustment position shown by the solid line and the second adjustment position shown by the imaginary line.

From the roller 28 at the adhesive application position 27 to the first
The polymerization tape 24 sent out to the tension adjustment mechanism 29 reaches the branch roller 32 along the tension adjustment roller TR1 of the adjustment arm 29A. The conveying tape 8 of the polymerization raw tape 24 is connected to the branching roller 32
Tension adjustment roller of adjustment arm 29B from A
The silicon tape 9 is sent upward toward the TR 2 and is separated by sending the silicone tape 9 coated with the adhesive 31 downward. Note that this initial separation work is performed manually by an operator. The conveyance tape 8 sent out from the tension adjustment roller TR2 is guided by guide rollers R4 to R8 and wound up by a first winding mechanism 33 consisting of a winding reel.

On the other hand, an anti-adhesive tape 34 is rotatably attached to the second repeating position 1B in a wound state. The anti-adhesive tape 34 fed out from the second feeding position 1B is sent out along the guide roller R9 to the second tension adjustment mechanism 5, and from there reaches the common roller 3 along the guide rollers R10 to R13. After being wound, the sheet is guided by guide rollers R15 to R17 and wound up by a second winding mechanism 35 consisting of a winding reel.

A second tension adjustment mechanism 5 is attached to the contact/separation mechanism 4 to which the common roller 3 is rotatably attached. That is, the second tension adjustment mechanism 5 moves along an L-shaped adjustment arm 5A whose tip end is attached to the arm 2 constituting the approach/separation mechanism 4 and extends rearward, and a long hole 5B formed in this adjustment arm 5A. It is composed of a tension adjustment roller TR3 which is freely held.

A holding/cutting mechanism 6 is disposed near the front of the common roller 3 and the contact/separation mechanism 4. Holding and cutting mechanism 6
After crimping the silicone tape 9 and the silicone resin adhesive 31 to the upper surface of the seam of the material 7 to form a crimped seal line of a predetermined length, hold the uncrimped starting end of the silicone tape 9, and In other words, it is for cutting the boundary or the vicinity of the boundary between the crimped part and the uncrimped part and waiting for the next crimping operation. The support plate 6B is rotatable between a retracted position shown by a solid line and a holding/cutting position shown by a phantom line by a drive source such as a cylinder device (not shown).
and the cylinder 6C attached to this support plate 6B.
By the operation of the moving mechanism 6A, the silicone resin tape 9 is selectively moved from the holding position to the material 7, the temporary fixing position to the material 7, and the pressing position of the common roller 3 to the evacuated position, and by the operation of the cylinder 6C. Bracket 6 that rotates around pin 6D
A holding head 6F is attached to the holding head 6F, and a cutting blade 6G is provided near the rear end of the holding head 6F. The holding head 6F is composed of a vacuum suction head, and the cutting blade 6G is composed of an electric heating plate.

According to such a configuration, when sealing is performed along the circumferential direction of a cylindrical material such as an armhole, the cylinder portion 10 is first switched to the operating position as shown in FIGS. 2 and 3. , and switches the arm portion 11 to the standby position.

In this way, as shown in FIG. 3, when the material 7 is fed between the common roller 3 and the pressure roller 16 with the silicone tape 9 attached to the seam, D as shown in FIG.
It can be sealed continuously like a section.

Next, when sealing is performed along the joints in the length direction of the sleeve part b or the crotch part c, the cylinder part 10 is switched to the standby position and the arm part 11 is moved as shown by the imaginary line in FIG. Switch to operating position.

Here, in order to insert the cylindrical material 7 into the arm portion 11, the common roller 3 is made to stand by at an upper position by the operation of the contact/separation mechanism 4, and the common roller 3 and the pressure roller 21
In this state, insert the cylindrical material 7 to the front side of the arm 11, apply the silicone tape 9 to the joint of the material 7, and press the common roller 3 again. , the material 7, the silicone tape 9, and the anti-adhesive tape 34 are fed between the common roller 3 and the pressure roller 21.

In this way, while the cylindrical material 7 is being sent behind the rollers 3 and 21, the silicone tape 9 is continuously adhered along the seam. That is,
As shown in FIG. 5A, the unpressed starting end of the silicone tape 9 coated with a paste-like silicone resin adhesive 31 by the adhesive coating mechanism 30 provided at the adhesive coating position 27 is held and cut. It is held by suction on the holding head 6F of the mechanism 6.

By operating the cylinder 6C in the moving mechanism 6A, the holding head 6F is rotated to the position shown in FIG. 5B, and the silicone tape 9 is lightly pressed onto the seam of the material 7 via the silicone resin adhesive 31. Perform temporary fixing.

After the holding head 6F is released from suction, the cylinder 6C is moved back and the support plate 6B is rotated to retract the holding and cutting mechanism 6 to the retracted position shown by the solid line in FIG.

The common roller contact/separation mechanism 4 is rotated to the pressure bonding position shown by the solid line in FIG.
Press it to the side. That is, the common roller 3 and the pressure roller 16 or the pressure roller 21 pinch the joint portion of the material 7, the adhesive 31, the silicone tape 9, and the anti-adhesive tape 34. Furthermore, when the common roller contact/separation mechanism 4 is rotated to the crimping position, the L-shaped adjustment arm 50 constituting the second tension adjustment mechanism 5 moves upward, and the guide roller R9 and R
10 to shorten the length of the anti-adhesive tape 34 from the guide roller R9 to the guide roller R10.
When the adhesive tape 34 rotates from the standby position to the pressure bonding position together with the contact/separation mechanism 4, the length of the anti-adhesive tape 34 from the guide roller R13 to the common roller 3 increases, resulting in an increase in tension, that is, the second feeding position 1B. This prevents the inconvenience that the anti-adhesive tape 34 is excessively fed out and unnecessary slack is generated in the anti-adhesive tape 34.

The rod 29e of the cylinder device 29E in the first tension adjustment mechanism 29 is moved backward to hold the adjustment arms 29A, 29B at the first adjustment position shown by the solid line. As a result, the length of the polymerized raw tape 24 from the roller 28 to the branching roller 32 becomes longer, and the silicone tape 9 being fed out from the branching roller 32 is pulled and moved by the branching roller 32 side, and the silicone tape 9 to branch roller 32
and the common roller 3 with a tension suitable for crimping, and the length of the conveying tape 8 from the branching roller 32 to the guide roller R4 is shortened, so that the conveying tape 8 and the silicone tape 9 are pulled toward the branching roller 32 side. By absorbing the amount of movement caused by this, excessive tension is prevented from being applied to the transport tape 8.

A take-up reel that constitutes the first take-up mechanism 33;
The take-up reel, roller, and guide roller R4 constituting the second take-up means 35 are each rotated in the direction of the arrow by a drive source (not shown).

The anti-adhesive tape 34 and the silicone tape 9 coated with the adhesive 31 by the adhesive coating mechanism 30 at the adhesive coating position 27 are continuously fed into the joint between the common roller 3 and the material 7. The silicone tape 9 is adhered to the seam by the clamping force of the pressure roller 16 or the pressure roller 21, and a sealing process is performed to form a continuous seal line.

After the anti-adhesion tape 34 fulfills its function of preventing the adhesive 30 from adhering to the surface of the common roller 3, it is wound up by the second winding mechanism 35, and the conveying tape 8 is wound up by the first winding mechanism 33. It is wound up.

When all the seal lines SL by the silicone tape 9 are formed on the seams of the material 7, all drive sources are stopped, and the contact/separation mechanism 4 in FIG. 1 is then rotated to the standby position shown by the imaginary line. Then, the common roller 3 is retracted. As a result, the L-shaped adjustment arm 5A of the second tension adjustment mechanism 5 moves downward, and the tension adjustment roller TR3 is moved between the guide rollers R9 and R10.
By increasing the length of the anti-adhesive tape 34 from the guide roller R9 to the guide roller R10 and rotating the common roller 3 to the standby position, the adhesive from the guide roller R13 to the common roller 3 is prevented. The length of the tape 34 is shortened, and the inconvenience that the anti-adhesive tape 34 is slackened during this time and the tension is significantly reduced is prevented.

Rotate the support plate 6B and move the holding/cutting mechanism 6 to the first position.
The holding head 6F is moved to the holding/cutting position shown by the imaginary line in the figure, and the holding head 6F is brought into contact with the silicone tape 9. At the same time, the holding head 6F is given suction force by vacuum to hold the unpressed starting end of the silicone tape 9 by suction, and By heating the cutting blade 6G by energizing, the boundary between the crimped portion and the uncrimped portion of the silicone tape 9 or the uncrimped portion near the boundary is melted and cut.

The rod 29e of the cylinder device 29E in the first tension adjustment mechanism 29 is advanced to hold the adjustment arms 29A, 29B at the second adjustment position shown by the imaginary line. As a result, the length of the polymerized tape 24 from the roller 28 to the branching roller 32 is shortened, and the silicone tape 9 fed out from the branching roller 32 is given slack, and the length of the polymerized tape 24 from the branching roller 32 to the guide roller R4 is shortened. By increasing the length of the conveying tape 3 leading to the polymerization raw tape 2
The slack of the conveying tape 8 caused by the shortening of the length between the roller 28 and the branching roller 32 of No. 4 is absorbed, and an appropriate tension is applied.

The support plate 6B of the moving mechanism 6A is rotated, and the holding/cutting mechanism 6 is moved to the retracted position shown by the solid line in FIG. 1 and is on standby.

By repeating the above steps, seal lines can be sequentially formed and sealed at the joints of the subsequent materials 7, and the silicon adhesive 31
By attaching the silicone tape 9 to the joint surface of the silicone material 7 via the silicone material 7, high liquid-tightness can be ensured. Furthermore, the silicon adhesive 31 can be actively penetrated into the seam, that is, the perforation hole, by the squeezing force of the common roller 3 and the pressure roller 16 or the pressure roller 21, so that the sealing performance of this part can be improved. can be significantly increased.

Note that when the silicone resin adhesive 31 in the filling tank 30D of the adhesive application mechanism 30 is consumed, each drive system described above is temporarily stopped, and the injection machine 30B is placed on standby as shown by the imaginary line in FIG. What is necessary is just to rotate and hold it in the position, and to replenish adhesive to the filling tank part 30D. In practice, replenishment is accomplished by loading a cartridge into the filling tank portion 30D.

[Effects of the invention] As explained above, according to the invention, even when sealing is performed on annular parts such as armholes, or along the length of cylindrical materials such as sleeves and crotch parts, By alternating between the cylinder part and the arm part, sealing can be performed continuously with one device, and there is no need to install a dedicated machine or separate the work into separate processes as in the past. This makes it possible to significantly reduce equipment costs and manufacturing costs. In addition, the seal tape can be reliably attached to the joints of silicone materials that cannot be bonded with hot-melt adhesives, ensuring high liquid-tightness at the joints. At the same time, the seam can be reinforced. Moreover, since the silicone-based adhesive can be actively penetrated into the joint by the pressing force of the common roller and the first or second pressure roller, the sealing performance is greatly improved. Therefore, it can be suitably used as a seal for wetsuits used for diving, and its durability can be improved.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the overall configuration of a seal tape bonding device applied to the implementation of the present invention, Fig. 2 is a partial side view, Fig. 3 is a front view of the same, and Fig. 4 shows an example of the material. The schematic drawings, FIGS. 5A and 5B, are explanatory front views showing the operating state of the holding head in the holding and cutting mechanism. 3...Common roller, 4...Contact/separation mechanism, 6...Holding switching mechanism, 6A...Movement mechanism, 7...Material, 8
...Conveyance tape, 9...Silicon tape, 10...
...Cylinder part, 11...Arm part, 16...First pressure roller, 21...Second pressure roller, 30...
Adhesive application mechanism, 31... Adhesive, 19A... Moving means, 32... Branch roller, 33... First winding mechanism, 34... Anti-adhesive tape, 35... Second
Winding mechanism.

Claims (1)

[Scope of utility model registration request] An adhesive application mechanism that applies a silicone resin adhesive to the silicone resin tape that is fed out from the first feed position and polymerized on the surface of the conveying tape, and separates the silicone resin tape coated with the adhesive and the conveyance tape from each other. A branching roller that branches and sends out the branch,
A first winding mechanism that winds the conveying tape branched out from the branching roller, and a first pressure roller and a second pressure roller that press against a common roller that winds the anti-adhesive tape that is fed out from the second feeding position. Consisting of pressure rollers, the first roller is provided at the tip of a cylinder section disposed in a direction perpendicular to the direction of movement of the material, and the second roller is provided at the tip of an arm section disposed along the direction of movement of the material. Provided at the tip, the first and second rollers can be selectively pressed against the common roller by rotating the cylinder part and the arm part, and the applied adhesive can be directed toward the material. Then, in order to press the silicone resin tape fed between the material and the anti-adhesive tape from the branch roller to the material, move the common pressure roller to a pressure bonding position close to the first roller or the second roller. It has a common roller contact/separation mechanism that forms a seal line and retracts the common roller to a standby position separated from the first roller or second roller at the end position of the seal line, and when the common roller is retracted, the silicone resin tape is removed. A cutting holding mechanism that holds the uncrimped starting end of the tape and cuts its tip, and selectively moves this cutting holding mechanism to a location evacuated from the silicone resin tape holding position, the temporary fixing position to the material, and the common roller crimping position. A sealing tape adhesion device made of a silicone material, characterized in that it is equipped with a moving mechanism for moving the tape.