JPH08113400A - Automatic connection method and device for strip material - Google Patents

Abstract

PURPOSE: To connect a back connection end of a preceding strip material and a forward connection end of a succeeding strip material effectively and safely at a high workability, and obtain a constant high quality connection part. CONSTITUTION: A heater 70 is disposed between a back connection end 1a of a preceding strip material 1A and a forward connection end 1b of a succeeding strip material 1B. The connection ends 1a, 1b of the forward and back strip materials 1A, 1B are pressed to the heater 70 to fuse the connection ends 1a, 1b of the strip materials 1A, 1B, and after the forward and back strip materials 1A, 1B are removed from the heater 70, the heater 70 is retracted from the forward and back strip materials 1A, 1B, when the connection ends 1a, 1b of the forward and back strip materials 1A, 1B are pressed to each other to be connected to each other. In thus connecting the forward and back strip materials 1A, 1B to each other, the connection ends 1a, 1b are held by a connection part lower support flat plate 18 and a connection part presser plate 74 on the upper and lower side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention continuously supplies a long strip-shaped material used for manufacturing various long-sized objects such as heat-insulating tubes for piping. The present invention relates to a method and an apparatus for automatically connecting strip-shaped materials that are sequentially connected.

[0002]

2. Description of the Related Art For example, a heat insulating tube for piping is manufactured by a tube forming apparatus 200 as shown in FIG. This tube molding apparatus 200 comprises a molding machine 202 for molding a long strip-shaped material 1 such as rubber or a thermoplastic such as expanded polyethylene into a cylindrical shape, and then fusion-splicing the connection ends thereof to each other. And a take-off machine 204 for taking the tube 2 formed by molding, a scale-cutting machine 206 for measuring the tube 2 and cutting it into predetermined lengths, and a tube 2.
And a winder 208 for winding up. In FIG. 1, reference numeral 210 indicates an accumulator that absorbs the extra length of the strip-shaped material 1.

The band-shaped material 1 is usually supplied in the form of a spirally wound pack at a predetermined length, and the molding machine 2 is used.
For continuous operation of 02, the end of the strip material in each pack must be connected to the beginning of the strip material in the next pack.

In order to connect the connecting ends of the thermoplastic strip material to each other, the prior art uses strip material splicing machines operated by the hands and feet of the operator. This strip-shaped material splicing machine is a work in which a worker operates hands and feet to cut and align the connection ends of front and rear strip-shaped materials, work to heat and melt the connection ends, and work to fuse and splice the connection ends with each other. Is configured to do.

As described above, since the conventional belt-shaped material splicing machine is operated by the operator's hands and feet, it is not possible to connect the strip-shaped material with a long working time and high workability, and the skilled worker is skilled in the work. Therefore, there is a risk that the connection portion of the strip-shaped material may be varied and the quality may be deteriorated, and the heater may be touched and injured when the connection end of the strip-shaped material is heated and melted.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to provide a strip-shaped member that can work efficiently with high workability, can obtain a constant and high-quality connection portion, and can work safely. An object is to provide a method and a device for automatically connecting materials.

[0007]

The first means for solving the problems of the present invention is to connect the rear connecting end of the preceding band-shaped material and the front connecting end of the following band-shaped material by heat-sealing each other. In the method for connecting the strip-shaped material, a heater is arranged between the rear connection end of the preceding strip-shaped material and the front connection end of the succeeding strip-shaped material, and the connection ends of the strip-shaped material before and after these are pressed against the heater. A step of melting the connection end of the strip-shaped material, a step of retracting the heater from the front and rear strip-shaped material, a step of pressing and connecting the connection ends of the front and rear strip-shaped materials to each other, An object of the present invention is to provide an automatic connecting method for a strip-shaped material, which comprises a step of sandwiching a connecting end from above and below with a flat plate for supporting a connecting portion and a connecting portion holding plate at the time of connection.

A second object solving means of the present invention is an automatic connecting method for band-shaped materials according to the first object solving means, in which the flat plate for supporting the connecting portion is provided before the connecting ends of the band-shaped materials abut against each other. It moves so as to straddle the connection end of this band-shaped material, and the connection part holding plate moves so as to cross the connection end of this band-shaped material and make light contact with the connection end before the connection end of this band-shaped material collides. Guiding the abutting action of the strip-shaped material, pressing the connection part holding plate after the abutment of the strip-shaped material against the connection part of the strip-shaped material to sandwich the connection part together with the flat plate for supporting the connection part underside of the strip-shaped material. It is to provide an automatic connection method.

A third problem solving means of the present invention is an automatic connecting method for the band-shaped material by the first or second problem-solving means, in which the connecting ends of the front and rear band-shaped materials are trimmed before being pressed against the heater. Another object of the present invention is to provide an automatic connecting method for band-shaped materials, which further comprises steps.

A fourth means for solving the problems of the present invention is to dispose between the material feeding means before and after feeding the band-shaped material and to move in a direction transverse to the feeding direction of the band-shaped material, which is arranged between the material feeding means before and after the material feeding means. A flat plate for connecting part lower support and a flat plate for heater penetration, wherein the flat plate for connecting part lower support and the flat plate for heater penetration are a working position for advancing below the strip-shaped material and a non-working position for retracting from the strip-shaped material. And a projecting position at which the connecting end of the strip-shaped material is pressed through the flat plate for penetrating the heater when the flat plate for penetrating the heater of the connecting part supporting means is in the working position. And a material melting means including a heater for displacing between the retracted position and the protruding position retracted from this protruding position, and the connecting ends of the front and rear strip-shaped materials together with the connecting part lower supporting flat plate when the connecting part lower supporting flat plate is in the working position. So as to sandwich When the connecting portion holding means including the advancing connecting portion holding plate, the rear connecting end of the preceding strip material and the front connecting end of the following strip material are opposed to each other by the front and rear material feeding means, the heater penetrates. The connecting portion supporting means and the material melting means are driven so as to move the flat plate forward and then the heater is displaced to the protruding position, and after the connecting ends of the front and rear band-shaped materials are melted in this manner, the heater is moved to the front and rear. The material melting means is driven so as to recede from the strip-shaped material, the front and rear material feeding means are driven so that the connecting ends of the front and rear strip-shaped materials are joined to each other, and the connection is performed to support the connection ends of the strip-shaped material from below. The connecting part supporting means is driven so as to move the subordinate supporting flat plate before the collision of the band-shaped material, and the connecting part pressing plate is moved so as to sandwich the connecting ends of the front and rear band-shaped materials together with the connecting part lower supporting flat plate. Drive the connecting part holding means Is to provide an automatic connection apparatus of the belt-like material characterized in that a that the drive control means.

A fifth object solving means of the present invention is an automatic connecting device for the band-shaped material according to the fourth object solving means, in which the connecting ends of the front and rear band-shaped materials are cut and aligned before being pressed against the heater. Another object of the present invention is to provide an automatic connecting device for a strip-shaped material, which further comprises cutter means driven in cooperation with the material feeding means.

[0012]

As described above, the heater is arranged between the rear connecting end of the preceding strip-shaped material and the front connecting end of the succeeding strip-shaped material, and the connecting ends of these front and rear strip-shaped materials are pressed against the heater to move back and forth. The work of melting the connection end of the strip-shaped material, the work of retracting this heater from the front and rear strip-shaped material, the work of pressing and connecting the connection ends of the front and rear strip-shaped materials to each other, and the front and rear strip-shaped material When connecting, the work of sandwiching the connection end from above and below with the flat plate for supporting the connection part and the holding plate of the connection part is automatically performed, so that it is not necessary for the worker to stand by at the work site at all times, and this work is high. It can be performed efficiently with workability, and because it is performed in an automatic work process, a constant and high-quality connection can be obtained, and the operator does not have to touch the heater, and the work can be performed safely. it can.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment of the present invention will be described in detail. FIGS. 2 to 4 show an automatic connecting device 10 for a strip-shaped material according to the present invention.
The machine base 12 and a fixed table 14 provided on the machine base 12 are provided.

The automatic connecting device 10 includes strip-shaped materials 1A and 1B.
Material feeding means 16A before and after feeding (see FIG. 18),
16B and material feeding means 16A, 16B before and after these
And a connecting part supporting means 20 including a connecting part lower support flat plate 18 and a heater penetrating flat plate 18 ′ which are arranged between the strips 1A and 1B and move in a direction transverse to the feeding direction of the strip-shaped materials 1A and 1B. .

The material feeding means 16A, 16B are screwed to both ends of the machine base 12 as shown in FIGS. 2 and 3, and more particularly in FIGS. 5 and 6. The material feeding means 16A, 16B installed on the front and rear brackets 22, 22 'are moved up and down by a fixed frame 24 attached to the brackets 22, 22' and guide rods 26, 26 'passing through the fixed frame 24. A movable frame 28 movably supported, a drive feed roller 30 rotatably supported above the fixed frame 24, and a driven feed roller 32 rotatably supported by the movable frame 28. There is.

As can be seen from FIGS. 5 and 6, a motor 34 with an electromagnetic brake is mounted on the fixed frame 24, and the output shaft of this motor 34 is connected to the drive feed roller 30. Therefore, the drive feeding roller 30 is driven by the motor 34 with an electromagnetic brake. Further, as can be seen from FIGS. 2, 5 and 6, an air cylinder 36 is attached to the fixed frame 24.
The piston rod 36 a of No. 6 is connected to the movable frame 28. Therefore, the driven feeding roller 32 moves back and forth with respect to the driving feeding roller 30 by the expansion and contraction of the piston rod 36 a of the air cylinder 36. Strip material 1A, 1B
Is sandwiched between the feeding rollers 30 and 32 and fed.

In the illustrated embodiment, the material guiding means 3 is aligned with the material feeding means 16A, 16B on the fixed table 14.
8A, 38B are provided (see FIGS. 2 and 3) and these material guiding means 38A, 38B are shown in detail in FIGS. 7 and 8. Each of the material guiding means 38A, 38B is fixed on the fixed table 14 with a space therebetween, and the guide plate 40 through which the strip-shaped materials 1A, 1B pass, and the fixed table 1.
4, front and rear rails 42, 4 provided below the guide plate 40 along the width direction of the feeding direction of the strip-shaped materials 1A, 1B.
2 '(see FIG. 7) and sliders 44,44',
The guide plate 40 is provided by thumbscrews 46, 46 'that penetrate through the long holes 40a, 40a' (see FIG. 3) in the width direction of the guide plate 40.
And a pair of guide pieces 48, 48 'fixed to the sliders 44, 44' via. Strip material 1A, 1B
Is guided between the pair of guide pieces 48, 48 'on the guide plate 40 from the right side to the left side in FIG.

As can be seen from FIGS. 2 and 7, the material guiding means so that the strip-shaped materials 1A, 1B can be smoothly transferred between the material guiding means 38A, 38B and the material feeding means 16A, 16B. On the downstream side of 16A (on the left side in FIG. 2), the guide plate 40 is provided with an inclined surface 41 that is inclined downward and a guide piece 4
8 and 48 ′, the inclined surfaces 49 and 49 ′ inclined upward, and similarly, the inclined surface 4 inclined downward of the guide plate 40 on the upstream side (right side in FIG. 1) of the material guiding means 16 B.
1 and the guide piece 48, 48 'inclined surface 4 inclined upward
9, 49 '. Therefore, the strip materials 1A, 1B
Is the feed rolls 30, 3 of the upstream material feed means 16B.
2 is smoothly transferred to the guide plate 40 and the guide pieces 48 and 48 'of the material guide means 38B on the upstream side, and similarly, the guide plate 40 and the guide piece 4 of the material guide means 38A on the downstream side.
From 8, 48 ', the material is smoothly drawn into the feed rolls 30, 32 of the downstream material feed means 16A.

The pair of guide pieces 48, 48 'are released from the guide plate 40 by loosening the thumbscrews 46, 46' shown in FIGS. 7 and 8 and, as will be described later, the sliders 44, 44 '. The interval is adjusted by adjusting along the width direction. FIG.
As shown in FIG. 5, screw rings 54 and 54 ′, which mesh with the reverse screw portions 52 A and 52 A ′ of the reverse screw rod 52 rotatably supported by the bearing members 50 and 50 ′ standing upright from the fixed table 14, respectively, have sliders 44 and 54 ′. It is fixed at 44 '. A handle 56 is attached to the reverse-threaded rod 52.

Therefore, when the thumbscrews 46, 46 'are loosened and the handle 56 is manually rotated, the reverse screw portions 52A, 52A' are turned.
Causes the sliders 44, 44 'to move towards and away from each other, which results in a pair of guide pieces 48,
The interval of 48 'can be adjusted according to the width dimension of the strip materials 1A, 1B, and the thumbscrews 46, 4 are arranged at a predetermined interval.
6'is tightened and fixed.

As shown in FIGS. 2 and 3, the connecting portion supporting means 20 includes guide plates 40 and 40 of the front and rear material guide means 38A and 38B (the guide plate 40 and the material guide means of the material guide means 38A of FIG. 2). 38B, and a pair of rails 58, 58 'arranged so as to traverse the feeding direction of the strip-shaped materials 1A, 1B between the guide plate 40 and the guide plate 40 of 38B. The flat plate 18 'for penetrating the heater is
Between a working position in which the pair of rails 58, 58 'are engaged to advance between the guide plates 40, 40 of the front and rear material guide means 38A, 38B and a non-work position retracted from these guide plates 40, 40. Plane plate drive mechanism 6 that moves back and forth by replacing
It contains 0 and 60 '.

As shown in FIGS. 2 and 3, the flat plate drive mechanisms 60 and 60 'include a flat plate 18 for supporting the connecting portion and two racks 62 provided on the lower surface of the flat plate 18' for penetrating the heater. , 62 'and these racks 62, 62'
And two pinions 64, 64 '(64 is not shown) meshing with the two pinions 64, 64', which are attached to the machine base 12 via brackets 66, 66 '. 68 'output shaft 68a, 6
It is attached to each 8'a.

Therefore, the electromagnetic brake motor 68 is shown in FIG.
When rotated clockwise when viewed from the left side of the rack 62, the rack 62 that meshes with the pinion 64, together with the connecting portion lower support flat plate 18, guide plates 40, 4 of the front and rear material guiding means 38A, 38B.
When the motor 68 rotates in the reverse direction and the motor 68 rotates in the opposite direction, the rack 62 moves to the position shown in FIG. 3 from between the guide plates 40 and 40 of the front and rear material guide means 38A and 38B together with the connection support lower support flat plate 18. fall back. On the other hand, when the electromagnetic brake motor 68 ′ is rotated counterclockwise when viewed from the left side of FIG. 3, the rack 62 ′ meshing with the pinion 64 ′ is provided with the heater penetrating flat plate 18 ′ and the front and rear material guide means 38A.
38B between the guide plates 40, 40 and the motor 6
When the 8'rotates in the opposite direction, the rack 62 'moves together with the heater penetrating flat plate 18' to the front and rear material guiding means 38A, 38.
It retreats from between the guide plates 40 and 40 of B to the position of FIG.

The automatic connecting device 10 includes a connecting portion supporting means 20.
When the flat plate 18 'for penetrating the heater is in the advanced working position, it penetrates the heater penetrating slot 18'a of the flat plate 18' for penetrating the heater and the connecting end 1 of the strip-shaped materials 1A, 1B.
a and 1b (see FIGS. 19 and 20), a material melting means 72 including a heater 70 that is displaced between a projecting position at which it is pressed and a retracted position at which it is retracted from this projecting position; Connection plate 74 for advancing so as to sandwich the connection ends 1a and 1b of the front and rear band-shaped materials 1A and 1B together with the connection part lower supporting flat plate 18 when
And a connecting portion holding means 76 including

As shown in FIGS. 2 and 4, the material melting means 72 is provided with a heater driving mechanism 78 attached to the machine base 12. The details of the heater driving mechanism 78 are shown in FIGS. 9 to 11.
Is shown in. As can be seen from FIGS. 9 to 11, the heater driving mechanism 78 includes a heater holder 80 for holding the heater 70, a non-working position shown by the solid line in FIGS. 10 and 11 and an imaginary line in FIGS. 10 and 11. A connecting arm 84 that holds the parallel link arms 82 and 82 'so as to drive the parallel link arms 82 and 82' and an air cylinder 8 that drives the parallel link arms 82 and 82 '.
It consists of 6 and. The other ends of the parallel link arms 82 and 82 ′ have arm support shafts 88 and 8 supported by the machine base 12.
8'is swingably supported, a cylinder body 86A of the air cylinder 86 is pivotally supported by the machine base 12, and a piston rod 86a is swingably connected to an auxiliary arm 90 attached to an arm support shaft 88. Has been done.

Piston rod 86a of air cylinder 86
Is contracted, the parallel link arms 82, 82 'are collapsed so that the heater 70 is in the non-working position shown by the solid lines in FIGS. 10 and 11, and the piston rod 86a of the air cylinder 86 extends. Parallel link arm 8
2, 82 'is centered around the arm support shafts 88, 88' and shown in FIG.
Of the heater 70 is swung upward as indicated by the imaginary line, so that the heater 70 is displaced to the projecting position between the guide plates 40, 40 of the front and rear material guide means 38A, 38B. The heater penetrating flat plate 18 ′ is provided in advance with the front and rear material guide means 38.
The heater 70 is located between the guide plates 40, 40 of A and 38B, and protrudes through the heater penetrating slot 18'a (see FIG. 3) of the heater penetrating flat plate 18 '. The strip-shaped materials 1A and 1B are thus pressed against both surfaces of the heater 70 at the projecting position so as to be connected to the connection ends 1a and 1B.
b is melted (see FIG. 18C).

As shown in FIG. 2, the connecting portion holding means 76 is disposed between the front and rear material guiding means 38A, 38B, and the connecting portion holding means 76 is shown in detail in FIGS. 12 to 14. There is. In the illustrated embodiment, the connecting portion pressing means 76 is the connecting portion 3 of the strip-shaped materials 1A and 1B (FIG. 19 (E)).
In addition to the connecting portion pressing plate 74 for pressing the
Terminal pressing pieces 92A, 9 for pressing the connection ends 1a, 1b of 1B.
2B, including the connecting portion pressing plate 74 and the terminal pressing piece 92A,
Reference numeral 92B denotes air cylinders 96, 98A, 98 attached to a bridge-shaped frame 94 attached to the machine base 12.
B piston rods 96a, 98a, 98b (98a not shown) are attached respectively.

As shown in FIGS. 12 and 14, the connecting portion pressing plate 74 has two guide rods 99 penetrating the frame 94, so that the connecting portion pressing plate 74 can be stably moved up and down. This connecting portion pressing plate 74 descends due to the extension of the piston rod 96a of the air cylinder 96, and the strip-shaped material 1
It has a function of pressing the connecting portions 3 of A and 1B (see FIG. 19E) together with the connecting portion lower supporting flat plate 18 from above (see FIGS. 19D and 20D).

Further, the terminal pressing pieces 92A and 92B each have two pieces.
Two mounting rods 100A, 100B are provided at both ends, and these two mounting rods 100A, 100B each have two guide rods 10 penetrating the frame 94, as shown in FIG.
Intermediate pressing members 104A, 104 having 2A, 102B
B through these intermediate pressing members 104A, 104B
Between the terminal holding piece 92A and the terminal pressing piece 92B.
A coil spring 106 wound around A and 100B
It is urged downward by A and 106B. Therefore, the terminal pressing pieces 92A and 92B are not
It is stably moved up and down by A and 102B. These terminal pressing pieces 92A and 92B are air cylinders 98A and 98B.
B piston rods 98a and 98b are urged downward to descend, and the connecting ends 1a and 1B of the strip-shaped materials 1A and 1B are lowered.
It has a function of pressing b so as to sandwich it with the flat plate 18 for supporting the connecting portion lower part. In this case, the air cylinders 98A, 98
Even if the extension amount of the piston rods 98a, 98b of B is larger than the descending amount of the terminal pressing pieces 92A, 92B, the coil springs 106A, 106B are compressed.
A and 92B are connection ends 1a and 1b of the strip-shaped materials 1A and 1B.
Will be pressed against the spring.

In the illustrated embodiment, the automatic connection device 10 is
As shown in FIGS. 15 and 16, the front and rear band-shaped materials 1A,
It further comprises cutter means 108A, 108B which are driven in cooperation with the front and rear material feeding means 16A, 16B so as to cut and align the connecting ends 1a, 1b of the 1B before pressing them on the heater 70.

These cutter means 108A, 108B
Each of which, in particular, as shown in detail in FIGS.
Cutter blade 112 attached to the cutter holder 110
The cutter blade 112, as shown in FIG. 15, has guide grooves 58a, 5a provided on the rails 58, 58 '.
8'a. Guide grooves 58a, 5
8'a, as shown in FIGS. 3 and 18 and FIG.
From the standby position (see FIG. 18A) in which the cutter blade 112 is retracted from the passages of the strip-shaped materials 1A and 1B, the strip-shaped material 1A,
1B extends to the cut and alignment end position (see FIG. 18D) across the passages of the strip-shaped materials 1A and 1B so as to cut and align.

Cutter means 108A and 108B are shown in FIG.
As shown in FIGS. 5 and 16, it includes a cutter drive mechanism 114 that drives the cutter blade 112 between the standby position and the trimming end position. This cutter drive mechanism 114
As shown in FIGS. 15 and 16, the cutter holder 110 is attached to the frame 94 and the cutter holder 110 is guided to the guide grooves 58a and 58 '.
It is composed of upper and lower guide rods 116 for guiding along a, and an air cylinder 118 having a piston rod 118a attached to the frame 94 and connected to the cutter holder 110.

Accordingly, when the piston rod 118a of the air cylinder 118 is extended, the cutter blade 112 together with the cutter holder 110 extends from the standby position along the guide grooves 58a and 58'a to the cut and alignment end position across the strip-shaped materials 1A and 1B. When it moves (see FIGS. 18A to 18D) and the piston rod 118a of the air cylinder 118 contracts, the cutter blade 112 moves together with the cutter holder 110.
Returns from the cut and aligned position to the standby position along the guide grooves 58a and 58'a (see FIGS. 18B to 18E).

As shown in FIG. 17, the automatic connecting device 10 includes material feeding means 16A, 16B and connecting portion supporting means 2.
0, the material melting means 72, the connecting portion holding means 76, and the cutter means 108A, 108B are provided with a drive control means 120 for driving them in a predetermined order.

The drive control means 120 is composed of the strip material 1A.
Of the end (rear connection end) 1a of the sheet material 1B or the end (front connection end) 1b of the strip-shaped material 1B is detected by the cutter means 108.
It may be a microcomputer that supplies an electric command signal to each means based on an activation signal from the terminal detector 122B that detects passing through B and drives these means. The drive control means 120 drives the cutter means 108A, 108B in cooperation with the respective material feeding means 16A, 16B so as to cut and align the connection ends 1a, 1b of the front and rear strip-shaped materials 1A, 1B, and precedes them. When the rear connecting end 1a of the strip-shaped material 1A and the front connecting end 1b of the succeeding strip-shaped material 1B face each other by the front and rear material feeding means 16A, 16B, the heater penetrating flat plate 18 'is advanced. Next, the connecting portion supporting means 20 and the material melting means 72 are driven so as to displace the heater 70 to the projecting position, and in this manner, the connecting ends 1 of the front and rear strip-shaped materials 1A, 1B are also driven.
After the a and 1b are melted, the front and rear material feeding means 16 so as to separate the front and rear strip-shaped materials 1A and 1B from the heater 70.
After driving A and 16B, the material melting means 72 is driven so as to retract the heater 70 from the front and rear strip-shaped materials 1A and 1B, and then the connecting ends 1a and 1B of the front and rear strip-shaped materials 1A and 1B.
front and rear material feeding means 16A, so that b is joined to each other,
16B is driven, and the connecting end 1 of the strip-shaped materials 1A and 1B
a flat plate 18 for supporting the lower part of the connection portion for supporting the a and 1b from below
Drive the connecting portion supporting means 20 so as to move before the abutting of the strip-shaped materials 1A, 1B, and the connecting portion holding plate 74 supports the connecting ends 1a, 1b of the front and rear strip-shaped materials 1A, 1B for supporting the connecting portion under support. The connecting portion pressing means 76 for moving the connecting portion pressing plate 74 is driven so as to be sandwiched with the flat plate 18, and the details thereof will be described later in detail together with the explanation of the automatic connecting method (operation of the automatic connecting device 10) of the present invention. To do.

Next, the automatic connection method of the present invention will be described in detail with reference to FIG. First, as shown in FIG.
The preceding strip material 1A corresponds to the corresponding material feeding means 16A.
Is supplied to the molding machine 202 shown in FIG. 1, for example, and when the end (rear connecting end) 1a of the band-shaped material 1A passes through the end detector 122A (see FIG. 17), the end detector 122A drives the drive control means. 18A, a starting signal is supplied to 120, and as shown in FIG. 18A, the driving of the material feeding means 16A is stopped to stop the feeding of the strip-shaped material 1A, and the terminal pressing piece 92A of the connecting portion pressing means 76 is As the piston rod 98a of the air cylinder 98A extends, the piston rod 98a descends to press the end (connection end) 1a of the strip-shaped material 1A onto the rail 58.

Thereafter, the drive control means 120 drives the cutter means 108A so that the cutter blade 112 in the guide groove 58a causes the air cylinder 11 of the cutter drive mechanism 114 to move.
8 extends the guide rod 58a to guide groove 58
The strip-shaped material 1 from the standby position (position in FIG. 18A)
The terminal (connection end) 1a of A is moved to the trimming end position (position of FIG. 18B) while trimming, and the piston rod 118 of the air cylinder 118 is moved.
Due to the contraction of a, the trimming end position returns to the standby position. After that, the terminal pressing piece 92A of the connecting part pressing means 76
Rises due to the contraction of the piston rod 98a of the air cylinder 98A (see FIG. 18C).

Then, the following strip-shaped material 1B is fed to the automatic connecting device 10 by the corresponding material feeding means 16B, and its end (connection end) 1b is guided by the guide groove 5 of the rail 58 '.
When 8'a is exceeded, the end detector 122B (see FIG. 17) supplies an activation signal to the drive control means 120, the material feeding means 16B stops the drive, and the end (connection end) 1a of the strip-shaped material 1A. Connecting portion holding means 7 in the same manner as the trimming of
6 of the terminal pressing piece 92B of 6 and the cutter means 1
The end (connection end) 1b of the strip-shaped material 1B is cut and aligned by the reciprocating movement of the cutter blade 112 of 08B (FIG. 18).
(C) to FIG. 18 (E) and FIG. 20 (B)). still,
When the strip-shaped materials 1A and 1B are cut and aligned, the material guide means 3
Since the space between the guide plates 40, 40 of 8A, 38B is open, the chips fall from the opening between the guide plates 40, 40.

Then, as shown in FIG. 19 (A), the heater penetrating flat plate 18 'of the connecting portion supporting means 20 is driven by the motor 68' of the flat plate driving mechanism 60 'to drive the pinion 6'.
4 ′, through the rack 62 ′, it moves to an operating position which is in a passage (between the front and rear guide plates 40, 40) through which the strip-shaped materials 1 A, 1 B pass, and then the heater 70 of the material melting means 72 moves the air cylinder 86. Of the piston rod 86a of FIG.
0 from the solid line position (non-working position) to the imaginary line position (working position) in FIG. 10, in which the heater 70 penetrates the heater penetration slot 18'a of the heater penetration flat plate 18 'and the strip-shaped material. It projects at a position facing the connection ends 1a, 1b of 1A, 1B.

In this state, front and rear material feeding means 16A,
16B moves the strip-shaped materials 1A and 1B until the end faces of the connection ends 1a and 1b of the strips 1A and 1B collide with the side surface of the heater 70, and after a few seconds, the strip-shaped materials 1A and 1B,
Moves 1B slightly in the direction of separation. This strip material 1
When A and 1B collide with the heater 70, the end faces of the connection ends 1a and 1b of the strip-shaped materials 1A and 1B are melted (FIG. 2).
0 (C)).

After the strip-shaped materials 1A and 1B are separated from the heater 70, the heater 70 of the material melting means 72 descends to the non-working position shown by the solid line in FIG. 10 due to the contraction of the piston rod 86a of the air cylinder 86 of the heater driving mechanism 78. And retreat, and the flat plate drive mechanism 6 of the connection part supporting means 20.
0'drives the motor 68 'in the opposite direction to drive the pinion 6
Flat plate 18 'for heater penetration through 4'and rack 62'
Is driven so as to retract from the connecting portion 3 of the strip-shaped materials 1A and 1B (see FIGS. 19B and 19C).

Finally, as shown in FIG. 19D, the flat plate 18 for supporting the connecting portion lower portion of the connecting portion supporting means 20 is driven by the motor 68 of the flat plate driving mechanism 60 to drive the pinion 64,
The strip-shaped material 1A, 1B is moved to an operating position within the passage (between the front and rear guide plates 40, 40) through the rack 62, and the material feeding means 16A, 16B is driven to drive the strip-shaped material 1A, 1B. The strip-shaped materials 1A and 1B are moved so that the melted connection ends 1a and 1b of each of them abut against each other, and then the piston rod 9 of the air cylinder 96 of the connection part holding means 76 is moved.
6a is extended to connect the connecting portion pressing plate 74 to the strip-shaped materials 1A, 1B.
20 is pressed against the strip-shaped materials 1A and 1B so as to straddle the connection ends 1a and 1b and sandwiched together with the connection support lower flat plate 18 (FIG. 20).
(D)).

After the band-shaped materials 1A and 1B are heat-sealed in this manner, as shown in FIG. 19E, the piston rod 96a of the air cylinder 96 of the connecting portion holding means 76 is contracted so that the connecting portion holding plate. 74 ascending and front and rear feeding means 1
The feeding rollers 30 and 32 of 6A and 16B are opened, and the strip-shaped materials 1A and 1B, including the heat-sealed portions thereof, are drawn into the accumulator 210 by a drawing roll (not shown) in the accumulator 210 of FIG.

When the terminal detector 122A detects that the end (connecting end) 1b of the strip-shaped material 1B is near the end of feeding, the strip-shaped material 1B is trimmed as shown in FIGS. Material 1C (not shown) is supplied and trimmed as shown in FIG. 18C and subsequent steps, and the above operation is repeated. The operation thereafter is as shown in FIG. 19 and FIG.
As described with reference to.

In the above embodiment, the connecting portion supporting means 20 is used.
Although the flat plates 18 and 18 ′ of the above are moved by the rack and pinion mechanism, they may be moved by the cylinder mechanism,
Further, the heater 70 of the material melting means 72 is moved up and down by the parallel link mechanism and the cylinder mechanism, but may be moved up and down by only the cylinder mechanism. Further, the cutter means 108
In A and 108B, the cutter blade 112 is horizontally moved so as to traverse the passage of the strip-shaped material, but it may be an elevating type.

In the above embodiment, since the front and rear band-shaped materials 1A and 1B are melted by the heater 70, they are once separated from the heater 70, and then the heater 70 is retracted, so that the connection ends 1a and 1b may collapse. Therefore, it is preferable that burrs are less likely to occur during the subsequent joining and that the heater 70 can be effectively prevented from being contaminated.
The heater 70 may be retracted as it is without separating 1B from the heater 70.

Further, in the above embodiment, the connecting portion holding plate 74
Was pressed down after abutting the connection ends 1a, 1b of the strip-shaped materials 1A, 1B.
Before the connecting ends 1a and 1b of B collide with each other, the strip materials 1A and 1B
These connecting ends 1a, 1 are straddled over the connecting ends 1a, 1b of B.
When the strip-shaped materials 1A and 1B are collided with each other, they are pushed down and moved so as to come into light contact with b to guide the colliding action, and after the colliding of the strip-shaped materials 1A and 1B, the strip-shaped materials 1A and 1B are connected to the connecting portion 3. You may press it hard.

[0048]

According to the present invention, as described above, the heater is disposed between the rear connecting end of the preceding strip-shaped material and the front connecting end of the succeeding strip-shaped material, and the strip-shaped material before and after these is formed. The work of pressing the connection end of the strip to the heater to melt the connection ends of the front and rear strips of material, the work of retracting the heater from the front and back of the strip of material, and pressing the connection end of the front and back of the strip of material so that they join to each other. Since the work of connecting and the work of sandwiching the connection end from above and below with the flat plate for supporting the connection part and the presser plate for the connection part from the top and bottom when connecting the front and rear band-shaped materials are performed automatically, the worker always stands by at the work site. These operations can be performed efficiently with high workability without the need for them. In addition, since they are performed in an automatic working process, a constant and high-quality connection can be obtained, and the worker does not touch the heater. Work safely There is a practical benefits that can Rukoto.

Further, the work of trimming these before and after melting the connecting ends of the front and rear band-shaped materials is automatically performed.
All the work required to connect the front and rear strips can be automated, so that a continuous supply of strips with good connection quality can be provided.

[Brief description of drawings]

FIG. 1 is a schematic system diagram of a usage example of a strip-shaped material supplied from an automatic connection device for the strip-shaped material according to the present invention.

FIG. 2 is a side view of an automatic connecting device for band-shaped materials according to the present invention.

FIG. 3 is a top view showing the apparatus of FIG. 2 with the connecting portion holding means and the cutter means omitted.

FIG. 4 is a front view of the device of FIG.

FIG. 5 is an enlarged front view of the material feeding means used in the present invention.

6 is a side view of the material feeding means of FIG.

FIG. 7 is an enlarged side view of the material guiding means used in the present invention.

8 is a front view of the material guiding means of FIG. 7. FIG.

FIG. 9 is an enlarged front view of cutter means used in the present invention.

10 is a side view of the cutter means of FIG. 9. FIG.

11 is a top view of the cutter means of FIG. 9. FIG.

FIG. 12 is an enlarged side view of the connecting portion holding means used in the present invention.

13 is a front view of the connecting portion pressing means of FIG.

14 is a top view of the connecting portion holding means of FIG.

FIG. 15 is an enlarged side view of the cutter means used in the present invention.

16 is a front view of the cutter means of FIG.

FIG. 17 is a system diagram of drive control means used in the present invention.

FIG. 18 is a schematic perspective view showing a series of operations for trimming the strip-shaped material during operation of the apparatus of the present invention, and FIGS. 18A to 18C show the work for trimming the preceding strip-shaped material; (C) to (E) of the same figure show the work of trimming the subsequent strip-shaped material.

FIG. 19 is a schematic perspective view showing a series of operations for melting and joining the connection end of the strip-shaped material during the operation of the device of the present invention, and FIG. 19 (A) shows the operation for melting the strip-shaped material; B) to (D) show an operation of joining the strip-shaped materials, and FIG. 6 (E) shows a state in which the connected strip-shaped materials are sent to the next step.

FIG. 20 is a schematic cross-sectional view showing a series of operations for melting and joining the connection ends of the strip-shaped material by the device of the present invention, and FIGS. 20 (A) and 20 (B) show the work of trimming the front and rear strip-shaped materials. The figure (C) shows the operation of melting the strip material, and the figure (D) shows the operation of joining the strip material.

[Explanation of symbols]

 1A Leading strip material 1B Subsequent strip material 3 Connection part 10 Automatic connection device of strip material 12 Machine stand 14 Fixed table 16A Front material feeding means 16B Rear material feeding means 18 Connection support lower plate 18 ' Heater penetrating flat plate 20 Connection part supporting means 22 Bracket 22 'Bracket 24 Fixed frame 26 Guide rod 26' Guide rod 28 Movable frame 30 Drive feed roller 32 Driven feed roller 34 Electromagnetic brake motor 36 Air cylinder 36a Piston rod 38A Material guide means 38B Material guide means 40 Guide plate 40a Long hole 42 Rail 42 'Rail 44 Slider 44' Slider 46 Thumbscrew 46 'Thumbscrew 48 Guide piece 48' Guide piece 50 Bearing member 50 'Bearing member 52 Reverse screw rod 52A Reverse screw part 52 A'Inverse screw part 54 Screw ring 54 'Screw ring 56 Handle 58 Rail 58' Rail 60 Plane plate drive mechanism 60 'Plane plate drive mechanism 62 Rack 62' Rack 64 Pinion 64 'Pinion 66 Bracket 66' Bracket 68 Electromagnetic brake motor 68a Output shaft 68 'Motor with electromagnetic brake 68'a Output shaft 70 Heater 72 Material melting means 74 Connection part holding plate 76 Connection part holding means 78 Heater drive mechanism 80 Heater holder 82 Parallel link arm 82' Parallel link arm 84 Connection arm 86 Air Cylinder 86A Cylinder body 86a Piston rod 88 Arm support shaft 88 'Arm support shaft 90 Auxiliary arm 92A Terminal pressing piece 92B Terminal pressing piece 94 Frame 96 Air cylinder 96a Piston rod 98A Air cylinder 98 Piston rod 98B Air cylinder 98b Piston rod 99 Guide rod 100A Mounting rod 100B Mounting rod 102A Guide rod 102B Guide rod 104A Intermediate pressing member 104B Intermediate pressing member 106A Coil spring 106B Coil spring 108A Cutter means 108B Cutter means 110 Cutter holder 112 Cutter blade 114 Cutter drive mechanism 116 Guide rod 118 Air cylinder 118a Piston rod 120 Drive control means 122A Terminal detector 122B Terminal detector

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location B29L 7:00 23:00

Claims (5)

[Claims] 1. A method for connecting strip materials in which the rear connecting end of the preceding strip material and the front connecting end of the following strip material are heat-sealed to each other to provide a rear connecting end of the preceding strip material. And a step of arranging a heater between the front connecting end of the strip-shaped material that follows and pressing the connection end of the front and rear strip-shaped material to the heater to melt the connection end of the front and rear strip-shaped material,
A step of retracting the heater from the front and rear band-shaped materials,
A step of pressing and connecting the connection ends of the front and rear band-shaped materials so as to bond them to each other; and, when connecting the front and rear band-shaped materials, sandwiching the connection end from above and below with a flat plate for supporting the connection part lower support and a connection part pressing plate. A method for automatically connecting strip-shaped materials, which comprises a process and a process. 2. The method for automatically connecting strip-shaped materials according to claim 1, wherein the flat plate for supporting the connecting portion straddles the connection ends of the strip-shaped materials before the connection ends of the strip-shaped materials collide with each other. And the connecting portion pressing plate straddles the connecting end of the strip-shaped material and comes into light contact with the connecting end before the connecting end of the strip-shaped material collides with each other. The abutting action of the strip-shaped material, and after the abutting of the strip-shaped material, the connecting portion pressing plate is pressed against the connecting portion of the strip-shaped material to sandwich the connecting portion together with the flat plate for supporting the connecting portion. Automatic connection method. 3. The method for automatically connecting strip-shaped materials according to claim 1 or 2, further comprising a step of trimming the connection ends of the front and rear strip-shaped materials before pressing them on the heater. A method for automatically connecting strip-shaped materials. 4. A flat plate for supporting a connecting portion, which is arranged between the material feeding means before and after feeding the band-shaped material, and which moves between the material feeding means before and after the material and moves in a direction transverse to the feeding direction of the band-shaped material. And a flat plate for penetrating the heater, and the flat plate for supporting the connecting portion and the flat plate for penetrating the heater are exchanged between a working position for advancing below the strip-shaped material and a non-working position for retracting from the strip-shaped material. And a projecting position at which the connecting end of the strip-shaped material is pushed through the heater penetrating flat plate when the heater penetrating flat plate of the connecting part supporting means is in the working position. The material melting means including a heater that is displaced between the retracted position and the retracted position, and the connection ends of the front and rear band-shaped materials are sandwiched with the connection part lower support flat plate when the connection part lower support flat plate is in the working position. So When the connecting portion pressing means including the connecting portion pressing plate that is advanced to, and the rear connecting end of the preceding strip-shaped material and the front connecting end of the following strip-shaped material are opposed to each other by the front and rear material feeding means. The connecting portion supporting means and the material melting means are driven so that the flat plate for penetrating the heater is moved forward and then the heater is displaced to the projecting position, and the connecting ends of the front and rear band-shaped materials are thus melted. rear,
The material melting means is driven so as to retract the heater from the front and rear band-shaped materials, and the front and rear material feeding means are driven so that the connection ends of the front and rear band-shaped materials are joined to each other, and In order to support the connecting end of the material from below, the connecting part supporting means is driven so as to move the connecting part lower supporting flat plate before the abutting of the band-shaped material, and the connecting ends of the front and rear band-shaped materials are connected to each other. An automatic connecting device for a band-shaped material, comprising: drive control means for driving the connecting portion holding means for moving the connecting portion holding plate so as to sandwich it with the subordinate supporting flat plate. 5. The automatic strip material connecting device according to claim 3, wherein the front and rear material feeding means cooperate with each other so that the connection ends of the front and rear strip materials are cut and aligned before being pressed against the heater. An automatic connecting device for band-shaped materials, further comprising cutter means which is driven to work.