JP2981847B2 - Bonding preparation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bonding preparation apparatus for supplying a bonding material to a predetermined position of a work made of cardboard, thin plate or the like in order to partially bond the work. The work is used as a box frame of a folding box used as, for example, a lunch box or a confectionery box. In this case, the work has a longitudinal groove for fitting a bottom plate, and a width direction for bending. Are cut, and both ends in the longitudinal direction of the work are bonded to form a box frame.

[0002]

2. Description of the Related Art A double tape in which a release tape and an adhesive double-sided adhesive tape are doubled and wound on a reel is used. Conventionally, those used for bonding are disclosed in, for example, JP-A-62-31662,
-12172.

As described above, the use of the adhesive double-sided tape has an advantage that the work is adhered at the moment of overlapping the work, but it is difficult to accurately adhere the adhesive piece to a narrow work at a predetermined position. Further, the adhesive action may be insufficient with the adhesive piece alone, or the adhesive strength may be weakened by heat.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a means capable of accurately and reliably bonding a work.

[0005]

SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned problems, and the first means is, as described in claim 1, an adhesive double-sided adhesive on the inner surface of a release tape. The reel around which the double tape holding the tape is wound,
A reel supporting portion rotatably supported, a double-sided double-sided adhesive tape pulled out from the reel being blown at equal intervals by a heating cutter to form an adhesive piece held by a peeling tape; A work on a work table operated by a pressurizing mechanism downstream of the part, and an adhesive preparation unit having an adhesive piece sticking portion for pressing the adhesive piece onto the work by pressing the adhesive piece on the work piece. A perforating needle protruding from the fusing blade is provided on the blade, and a sensor for detecting a hole perforated in the peeling tape with the perforating needle as a reference hole is provided in the adhesive piece attaching section, and an adhesive piece is attached by a signal from the sensor. Operating the pressurizing mechanism of the section.

According to this means, when the reference hole of the peeling tape is detected by the sensor, the work table is actuated, whereby the adhesive piece is accurately adhered to a predetermined position of the work, and the other work portion is attached to the predetermined position. If overlapped, the parts are immediately bonded.

[0007] The second means is a reel support for rotatably supporting a reel wound with a double tape holding an adhesive double-sided adhesive tape on the inner surface of a peeling tape. Part, the double-sided adhesive tape of the double tape pulled out from the reel was blown at equal intervals with a heating cutter,
A fusing section that forms an adhesive piece held by a release tape, and a work on a work table that is operated by a pressure mechanism downstream of the fusing section, by pressing the work piece onto the adhesive piece to attach the adhesive piece to the work. In the bonding preparation device provided with a piece sticking section, an adhesive supply section is provided downstream of the adhesive piece sticking section for adhering an adhesive to the work adjacent to the piece of adhesive stuck to the work. It is characterized by the following.

According to this means, the work piece to which the adhesive piece has been adhered at the adhesive piece sticking portion is further coated with an adhesive adjacent to the adhesive piece, so that another work portion is superimposed thereon. At this time, the portion is immediately adhered with the adhesive piece, and after a short delay, the adhesive is solidified and strongly adhered, so that it is securely adhered.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes an adhesion preparation device of the present invention, 2 denotes a frame, and the frame 2 has a reel supporting portion 3, a fusing portion 4 for fusing and forming an adhesive piece, a tape tension portion 5, and an adhesive piece attached to a work. An adhesive strip attaching section 6, an adhesive supply section 7, a winding section 8, and the like to be attached are sequentially provided.

The reel support 3 is provided with a reel shaft 10 on which a reel 12 of a double tape 11 is rotatably supported. As shown in FIG. 2, the double tape 11 has an adhesive double-sided adhesive tape 1 inside a release tape 11a.
1b is adhered and rolled up.
1a has high heat resistance, and the double-sided adhesive tape 11b has low heat resistance.

In the fusing section 4, as shown in FIG. 3, a fusing section 11c is formed on the double-sided adhesive tape 11b of the double tape 11 and fusing is performed to form a short adhesive piece 13, and the peeling tape 1 is formed.
A reference hole 14 is made in 1a.

In the fusing section 4, reference numeral 15 denotes a pulse motor,
16 is a toothed drive pulley fixed to the axis of the pulse motor 16, 17 is a slit disk provided with a number of slits 17a, 18 is a pulse counter, when a set number of slits pass through the pulse counter 18. The motor 15 is stopped to move the heating cutter 19 upward, and this operation is controlled by a control device (not shown).

In the figure, 20 and 20a are driven shafts and 21 and 21a, respectively.
Is a floating shaft, which is provided on the lower left and right sides of the drive pulley 16, respectively. The frame 2, which supports the shafts 20, 21, 20a, 21a, has a double wall as shown in FIG. The driven shaft 20 is supported by the frame 2 and the floating shaft 21 is held in a vertical groove 22 so as to be able to move up and down, and is lowered by the weight of the shaft 21 and its accessories. Right driven shaft 2
0a and the floating shaft 21a are similarly supported.

A driven pulley 23 having teeth, a feed roller 24, and a timing gear 25 are fixed to the driven shaft 20, and the driven pulley 23 is driven by a driving pulley 16 via a toothed belt 26. A timing gear 27 having the same diameter as the timing gear 25 and a pressing roller 28 are fixed to the floating shaft 21. The timing gears 25 and 27 mesh with each other and rotate at the same speed.
4 is pressed by gravity to feed the double tape 11. However, the right driven shaft 20a and the floating shaft 2
The timing gears 25 and 27 are not provided in 1a.

A receiving roller 29 is supported at a substantially intermediate position between the floating shafts 21 and 21a, and is in contact with the outer surface of the double tape 11. The receiving roller 29 has a peripheral groove 29a at the center of the outer peripheral surface as shown in FIG. The heating cutter 19 has a perforation needle 19a and a fusing blade 19b at the tip, and a lower portion is surrounded by a heater 19c and is moved up and down by a cylinder 19d. Therefore, when the cutter 19 is raised, the perforation needle 19a passes through the double tape 11 and
9a, and the reference hole 14 shown in FIG.
The double-sided adhesive tape 11b is formed with a fusing portion 11c by the fusing blade 19b and cut off, but the peeling tape 11a is not cut off. By repeating this operation, the short adhesive piece 1
3, 13 ... can be formed.

The tape tension portion 5 includes a vertical groove 30 and the vertical groove 30.
The double tape 11 is bent in a U-shape, and the weight of the tension roller 32 acts to tension the double tape 11. Further, by providing the position detecting means 33 of the pressure roller 32 facing the vertical groove 30, excessive or excessive slack is detected, and the speed difference between the upstream side and the downstream side is adjusted. The position detecting means 33 is provided with a plurality of position sensors 33a in a vertical direction, and detects the position of the pressure roller 32 by this. The tension roller 32 may be of a type that is pressed by a spring.

The adhesive strip attaching section 6 is driven by a pulse motor 35 and has a toothed drive pulley 36.
Two sets of driven shafts 3 are provided on the left and right under the drive pulley 36.
7, 37a and floating shafts 38, 38a.
And the same tape feed means. Both shafts 37,
The same timing gears as the timing gears 25 and 27 in FIG. 4, the same roller as the feed roller 24 and the pressure roller 28, and the same pulley as the driven pulley 23 are attached to 38 and driven by a belt 39. However, the right shafts 37a, 38
No timing gear is provided in a.

A shaft 40 is supported between the driven shafts 37 and 37a, and a receiving roller 41 is mounted on the shaft 40. The receiving roller 41 supports the outer surface of the double tape 11, that is, the release tape 11a side. You. Further, the receiving roller 41 presses the back surface of the belt 39 as a tension roller of the belt 39. Below the receiving roller 41, a work table 43 that moves up and down by a cylinder 42 is arranged. 43a is an elastic plate.

The work supplied to the work table 43 is, for example, a box frame 44 shown in FIG. 6. The box frame 44 has a bent groove 44a and a bottom fitting groove 44b cut on the inner surface side, and the outer surface side. The adhesive piece 13 is adhered to one end of the substrate, and an adhesive 45 is applied in the next step.

A sensor 46 is provided downstream of the receiving roller 41. The sensor 46 detects the reference hole 14 formed in the peeling tape 11a, and has a light source 46a and a light receiving portion 46b. A signal is generated when light passes through. When the adhesive piece 13 comes directly below the receiving roller 41, the sensor 46 is arranged at a distance L that allows one of the reference holes 14 to be detected.

Therefore, when the sensor 46 emits a signal, the motor 35 is stopped, and the
When the box 3 is raised, a predetermined portion of the box frame 44 is pressed against the adhesive strip 13, and the adhesive strip 13 is attached to the box frame 44 and separated from the release tape 11a.

When the pulse motor 35 is rotated by a certain angle after the reference hole 14 is detected by the sensor 46,
3 may be located directly below the roller 41.

Next, the box frame 44 is moved to the work table 4 by an appropriate transport means.
7, and the adhesive supply unit 7 applies an adhesive 45 as shown in FIG. The adhesive supply unit 7 includes a sensor 4
8 and an adhesive extruder 49, and extrudes the adhesive from the nozzle 49a when the box frame 44 is detected by the sensor 48.

As described above, the adhesive piece 13 and the adhesive 45 are attached to one end.
Is folded as shown in FIG. 7 and the other end is superimposed on the one end, and both ends are immediately adhered by the adhesive piece 13. If left in this state for a while, the adhesive 45 is solidified and adhered, so that a strong connection is made.

In the winding section 8, a rope pulley 51 is loosely fitted on a support shaft 50, and a reel 52 is mounted on the rope pulley 51.
Are combined. The rope 53 is connected to the rope pulley 51
And a rope pulley attached to the shaft 37 so as to be loosely hung so that slippage occurs. The peeling tape 11a from which the adhesive strip 13 has been peeled off is wound around the reel 52. When the peripheral speed of the winding portion of the reel 52 is higher than the moving speed of the peeling tape 11a, or when the tape 11a is stopped, the rope 53 It does not slip and give excessive winding torque.

As described above, the reference hole 1 is formed in the double tape 11.
4 and the adhesive strip 13 are formed, and the sticking position of the adhesive strip 13 is determined with reference to the reference hole 14. Therefore, the sticking position is accurately maintained, and the strong bonding is performed by using the adhesive 45 together. .

[0027]

According to the first aspect of the present invention, a reference hole is formed with a piercing needle at the same time when an adhesive piece is formed on the double tape, and the position of the reference hole is detected to press the work to the adhesive piece. Therefore, the adhesive piece can be attached to a correct position without protruding, and an effect of obtaining a proper adhesive structure can be obtained.

According to the second aspect of the present invention, since the bonding by the adhesive piece and the bonding by the adhesive are used together, there is an effect that a reliable bonding structure can be obtained.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a side view of a double tape.

FIG. 3 is also a plan view

FIG. 4 is a sectional view taken along line 4-4 of FIG. 1;

FIG. 5 is a sectional view taken along line 5-5 of FIG.

FIG. 6 is a plan view of a box frame.

FIG. 7 is a perspective view of the same.

[Explanation of symbols]

2 Frame 3 Reel support part 4 Fusing part 5 Tape tension part 6 Adhesive piece sticking part 7 Adhesive supply part 11 Double tape 11a Peeling tape 19 Heating cutter 19a Drilling pin 19d, 42 Cylinder 16, 35 Motor 24 Feed roller 26, 39 belt 29,41 receiving roller 43 work table 44 work

Claims (2)

(57) [Claims] 1. A reel supporting portion rotatably supporting a reel wound with a double tape holding an adhesive double-sided adhesive tape on the inner surface of a release tape, and a reel drawn out from the reel.
Fusing the double-sided adhesive tape of the heavy tape at equal intervals with a heating cutter to form a fusing section that forms an adhesive piece held by a release tape, and a work on a work table that is operated by a pressure mechanism downstream of the fusing section. An adhesive preparation device comprising: an adhesive piece sticking portion for pressing the adhesive piece onto the work by pressing the adhesive piece onto the adhesive piece, wherein a cutting needle of the heating cutter is provided with a perforating needle projecting from the fusing blade. A sensor is provided on the adhesive strip sticking portion to detect a hole punched in the release tape with a needle as a reference hole,
An adhesive preparation device, wherein a pressure mechanism of an adhesive strip attaching portion is operated by a signal of the sensor. 2. A reel supporter for rotatably supporting a reel wound with a double tape holding an adhesive double-sided adhesive tape on the inner surface of a release tape, and a reel drawn out from the reel.
Fusing the double-sided adhesive tape of the heavy tape at equal intervals with a heating cutter to form a fusing section that forms an adhesive piece held by a release tape, and a work on a work table that is operated by a pressure mechanism downstream of the fusing section. An adhesive preparation device comprising: an adhesive strip sticking section that presses against the adhesive strip and attaches the adhesive strip to the work; downstream of the adhesive strip sticking section, adjacent to the adhesive strip attached to the work. An adhesion preparation device, comprising an adhesive supply unit for attaching an adhesive to the work.