JPH11240504A - Binder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To bind a packing object without loose looseness in a binder for binding the packing object with a binding material of a band, or a string, made of plastic such as PE(polyethylene), PP(polypropylene) and nylon. SOLUTION: A movable clamp 14 is provided at a primary clamping position correspondingly arranged on the side of a band line and at a front upper portion of a band feed port in a detachable manner with respect to a fixed clamp 15 located in the rear of the movable clamp 14, and a primary clamping requiring no slide table is made possible. Further, by providing a means for secondarily clamping the band at the rear portion positioned in the direction of the band line of the band feed port, a secondary clamping is performed in a state of holding the strain of the band due to rewinding, and a packing object is tightened by effectively working a force due to rewinding on the packing object.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a banding machine that binds a band made of plastic such as PE (polyethylene), PP (polypropylene), nylon, or the like, and a cord with a binding material.

[0002]

2. Description of the Related Art Conventionally, this type of binding machine automatically performs a process of winding a band around a package, tightening the band, thermally welding the band, and cutting the band. FIG. 30 is a diagram showing a state at the time of binding in the binding machine, where W is a package, T is a band,
a, b, and c move up and down by the rotation axis of the cam shaft d.
Adhesive press block having a secondary clamp, a secondary clamp and a cutter, e is a hot plate attached to an arm whose tip is circularly moved by a cam, and provided so as to be able to advance and retreat between overlapping portions of the band T. The mounting portion, g, is a slide table provided at the lower portion of the mounting portion f so as to be able to advance and retreat according to the camshaft phase.
In the above binding machine, the primary clamp a narrows the band T to the upper slide table g, pulls back the band T, winds it around the package W, and after the band T is tightened, the secondary clamp b rises. The band T of the slide table g is held at a narrow pressure, and a hot plate e is inserted between the bands T to be polymerized at the lower part of the slide table g. At the same time, the band T was cut and bound.

[0003]

However, in the binding machine having the above structure, the primary clamp a, the secondary clamp b, and the adhesive press block c press the slide table g via the band T. The slide table g must have sufficient stability, strength, and rigidity. Therefore, the slide table g is formed to be thick and wide, and requires rigidity. When the slide table g retracted after the binding of the slide table g was completed, the band T was loosened. This is more remarkable as the packing material W is smaller, and is not suitable for binding rods such as reinforcing bars. Further, in the binding machine having the above configuration, when the band T is secondarily clamped, the tension of the band T due to rewind acts between the secondary clamp b and the rewinding means. W
Therefore, the slide table g needs to be pressed with a larger pressing force. Also, 1
Secondary clamp a, secondary clamp b, etc. are slide tables g
Due to the configuration provided at the lower part, the driving mechanism is naturally also provided inside the lower part of the slide table g, so that the binding machine has to be enlarged. Also, it is not easy to insert the hot plate e between the overlapping bands T between the primary clamp a and the secondary clamp b pressing the band T from the lower part of the slide table g. As a result, there were adverse effects such as damage to the hot plate e and poor adhesion. Also, when the band T is cut by a cutter, the band T is torn in the length direction of the band T to cause poor binding or the cut surface is pierced by the tension of the band T. Injuries were sometimes caused by touching hands.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention has a structure in which a lower portion of a package mounting portion is disposed on a side of a band line and corresponding to an upper front portion of a band outlet on the band line. At the next clamp position, a movable clamp disposed in the front of the band line direction is provided so as to be able to freely contact and separate from the fixed clamp disposed behind the movable clamp, and both clamps are located between the primary clamp position and the upper front part of the band outlet on the band line. In this way, it is possible to perform primary clamping even with both thinner and narrower clamps without using a slide table as in the past, as well as on the other side of the primary clamped band. Release between the bond and the band between the primary and secondary clamps. Also, by providing means for secondary clamping of the band at the rear of the band outlet in the band line direction, secondary clamping is performed while maintaining the tension of the band by rewinding, and the force of rewinding is effectively applied to the package. Apply and tighten. In addition, a hot plate is provided so as to be able to advance and retreat so as to contact the lower portions of both clamps moved to the upper front in the band line direction of the band outlet, and means for pressing the band between the primary and secondary clamps against the hot plate is provided. Thus, the hot plate is easily inserted between the bands opened as described above. Also, a means for temporarily stopping the hot plate at a position close to the band between the primary and secondary clamps during the retreat is provided, and the band between the primary and secondary clamps is pressed against the lower portion of the hot plate and the lower portions of both clamps. By providing the means, the molten bands are bonded together by cooling under pressure, and the bands are melt-cut with a hot plate.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a body of a binding machine that binds a package W with a band or a string (hereinafter, referred to as a band T) made of plastic, and the body 1 is a cover body provided with a mounting portion 2 for the package W horizontally. 3 and a motor base 4
And the band guide housing 5 are arranged and fixed in parallel, and a clamp unit 6 is provided between the two. The motor base 4 is formed by providing a device avoiding space 7 in which one end in the longitudinal direction of a rectangular plate is cut out in a concave shape.
Is provided with a drive transmission mechanism 8. The band guide housing 5 has a substantially rectangular plate-like band guide base 9 and a base cover 10 parallel to a band T sending and rewinding line (hereinafter, referred to as a band line L), that is, wider than the band T. The motor base 4 and the band guide housing 5 are disposed and fixed at three points, namely, upper and lower ends of the other end (rear) in the longitudinal direction (band line direction) and lower front portions in the band line direction. 11 and 11a, and the motor base 4 and the band guide housing 5
And hold the interval.

[0006] The clamp unit 6 is
The slide board 12 and the fixed board 13 are slidably overlapped up and down and back and forth. The movable clamp 14 is arranged in parallel to the guide housing 5 side at a right angle, and is disposed in front of the fixed clamp 15 in the band line direction. The joining surface of the movable clamp 14 and the fixed clamp 15 has a wedge-shaped ridge 16 on one side and a groove 17 corresponding to the ridge 16 on the other side. Article 16 and groove 17
Are engaged.

The fixed substrate 13 is made of a rectangular plate as a base, and a band guide avoiding space 18 is formed by cutting the upper part from the front to the rear, and a rectangular shaft avoiding space 19 is provided at the center lower part of the base. The front strut 11 above
(Hereinafter referred to as a rail bar 11), a long sliding hole 20 is provided in the front and rear at a position corresponding to the rear bar 11a,
Long fulcrum holes 21 and 21a are provided at positions corresponding to the support bars 11a (hereinafter referred to as support bars 11a and 11b).
A long hook-like hole 22 is provided in the upper front part of the front and back and front and rear. Further, a claw piece 23 which is long in the vertical direction and has an inclined surface formed on the front lower portion of the fixed substrate 13 and in the vicinity of the shaft avoiding space 19 is protrudingly provided. The upper surface of the inclined surface is a sloped top, and the sloped top is fixed substrate 13
(The surface on the side of the band guide housing 5).

The slide substrate 12 is formed by forming a base thereof in a substantially hook shape having a long front and rear portion and a rear portion bent downward, and the same as the fixed substrate 13 in front of the surface of the slide substrate 12 (facing the band guide housing 5 side). A thick pin 24 is protruded, a square hole 25 is provided at the center, and a long slot 26 is provided at the back and forth. The pin 24 of the slide board 12 is inserted into the hook-shaped hole 22 of the fixed board 13.
Is movably mounted, the slide substrate 12 is overlapped from the back side of the fixed substrate 13, and the screw portions 28, 28 a projecting from the center of the two circular guide plates 27, 27 a are screwed into the square holes 25 and Each of the slide substrates 12 is inserted into the elongated holes 26 and screwed to the fixed substrate 13 so that the slide substrate 12 can slide up and down and back and forth with respect to the fixed substrate 13.

On the back surfaces of the slide substrate 12 and the fixed substrate 13, spring stopper plates 29, 29 a inclined downward and forward are provided at the lower front part of the fixed substrate 13 and the upper front part of the slide substrate 12, respectively. Between the spring stopper plates 29, 29a, a clamp joining spring 30 inclined forward toward the surface of both substrates 12, 13 is compression-inserted, and the clamp joining spring 30 is provided.
The direction in which the slide substrate 12 is pressed against the fixed substrate 13 side with
The movable clamp 14 is biased obliquely upward with respect to the fixed clamp 15, that is, the movable clamp 14 is positioned in front of and parallel to the fixed clamp 15. In such a state,
A pin 24 provided on the slide board 12 is located at a corner 22 a of the hook-shaped hole 22 provided on the fixed board 13. Also, slide board
On the back side of 12, a rotatable roller 31 is provided on an axis vertically arranged on the back side in the front lower part near the spring stopper plate 29, and a spring receiving plate 32 is vertically fixed on the rear lower part of the slide substrate 12. I have. The support bars 11a and 11b are inserted through the fulcrum holes 21 and 21a provided at the rear of the clamp unit 6 (fixed substrate 13) with play at the roots of the band guide housing 5 and the rail bars 11 and the front of the fixed substrate 13 at the front. Sliding hole 20 is slidably inserted through the clamp unit 6
Is swingably provided with its rear side as a fulcrum.

A unit operating spring 33 is engaged between the spring stopper plate 29a of the clamp unit 6 (fixed substrate 13) and the lower front portion of the base cover 10 of the band guide housing 5,
The clamp unit 6 is urged toward the band guide housing 5 (band line L side). Unit operating spring 33
In the fixed board 13, the sliding hole 20 is inserted in parallel with the rail bar 11, and the unit operating spring 33 is inserted through the band guide base 9 and the base cover 10 corresponding to the insertion position. A collar 34 is attached to the support bars 11a and 11b, and the fulcrum of the clamp unit 6 is pressed against the band guide housing 5 by the collar 34, and the fulcrum holes 21 and 11b are provided.
The movement of the fulcrum is made smooth by the spring washers 35 and 35a arranged on both sides of the 21a, so that the clamp unit 6 can swing.

The drive transmission mechanism 8 includes a clamp operation link 36 provided on the inner surface of the motor base 4 and a drive mechanism 37. The clamp operating link 36 is linked with the drive mechanism 37 to operate the swinging operation of the clamp unit 6 and the operation operation of the movable clamp 14.
38, which comprises an output lever 39 and a connecting lever 40 which are longer than this. The push-down lever 38 and the output lever 39 have their lower ends pivotally connected to the front and rear lower portions of the motor base 4, respectively, and connect the upper end of the push-down lever 38 to the upper end portion of the output lever 39. A link is formed by pivotally connecting with a rod 40. The pivot point of the push-down lever 38 is the rail bar.
It is provided on the same line as 11.

The push-down lever 38 has a convex portion in front of the upper end.
A state in which the clamp unit 6 is formed obliquely to the side of the band line L, that is, the band guide housing 5, with the protrusion 41 being formed so as to protrude and the pressing portion 42 inclined rearwardly below the protrusion 41. (Hereinafter, it will be referred to as a diagonal girder state)
A roller provided with the pressing portion 42 on the back surface of the slide substrate 12
It can be detached from 31. In the above-mentioned oblique girder state, the movable and fixed clamps 14 and 15 are located on the side of the band line L, and such a position is defined as a position K of the primary clamp where both clamps 14 and 15 hold the tip of the band T. The primary clamp position K is arranged corresponding to the upper front part of the band outlet 95 on the band line L. On the other hand, the upper end of the output lever 39 is pivotally connected to the base end of the support rod 43 that can move back and forth with the support pin 44. A long slide hole 45 is provided in front of the support rod 43 in the front-rear direction, and the slide hole 45 is slidably mounted on a shaft pin 46 protruding upward and forward from the inner surface of the motor base 4. A link spring 47 is hooked between the support pin 44 and the shaft pin 46, and the output lever 39 is tilted forward by the link spring 47, and the push-down lever 38 is tilted forward via the connecting rod 40. ing. As a result, the pressing unit 42 of the lever 38 is pushed down while the clamp unit 6 is in the oblique girder state.
Presses the roller 31 downward against the elastic force of the clamp connecting spring 30, pushes down the movable clamp 14 downward, and arranges the movable clamp 14 at the lower front part with respect to the fixed clamp 15. When the clamp unit 6 is in the slanted girder state, the clamp joining spring 30 and the spring stopper plates 29 and 29a protruding from the back surface side of the clamp unit 6 are arranged in the device avoiding space 7 of the motor base 4, and the clamp unit 6 It does not hinder the rocking motion.

A first roller 48 projects from the lower front end of the output lever 39. Further, a spring receiving lever 50 is pivotally attached to a pivot 49 at the lower end of the output lever rod 39 so as to be swingable. A second roller 51 is provided at a front end of the spring receiving lever 50, and a rear end of the spring receiving lever 50 is provided. The clamp spring 52 is interposed between the unit and the spring receiving plate 32 of the slide board 12, and the spring receiving lever
50 is leaning forward. The first and second rollers 48 and 51 rotate (revolve) about the pivot 49, and the radius of rotation of the first roller 48 and the second roller 51 is set longer in the latter.

A support plate 53 is provided on the front upper portion of the support rod 43 to be wide toward the clamp unit 6, and a front end portion of the support plate 53 is formed to extend in the shape of an elongated band to form a band guide 54. The guide 54 is curved downward in a spoon (concave surface) shape, and the band guide 54 is provided below the fixed clamp 15 at the primary clamp position K so as to be able to advance and retreat in the oblique girder state of the clamp unit 6. The band guide 54 does not hinder the oblique girder state of the clamp unit 6 even if it protrudes from the upper portion of the motor base 4 toward the clamp unit 6 due to the band guide avoiding space 18 provided in the clamp unit 6.

The drive mechanism 37 is a forward / reverse rotatable gear motor fixed to the outer surface of the motor base 4 as a drive source 55,
The drive shaft of the drive source 55 protrudes through the lower center part of the motor base 4, the rotating shaft 56 connected to the drive shaft passes through the band guide housing 5, and the tip of the rotating shaft 56 is provided on the base cover 10. It is rotatably supported by a bearing 57. Axis of rotation
In 56, a band roller 58 whose outer peripheral surface is knurled is fixed to a portion (front end side) corresponding to the inside of the band guide housing 5, a clutch plate 59 is fixed to a base end of the band roller 58, and a band is fixed. A clamp operation cam 60 is interposed between the roller 58 and the clutch plate 59. still,
In the band guide base 9 of the band guide housing 5, a roller insertion hole (not shown) having a diameter larger than that of the band roller 58 is provided.
Is provided. Further, a clutch plate 59 and a clamp operation cam 60 arranged between the motor base 4 and the band guide housing 5 are provided.
Are arranged in the area of the shaft avoiding space 19 provided in the clamp unit 6, so that the swing operation of the clamp unit 6 is not hindered.

An arc-shaped orbit 61 is formed on the inner surface of the motor base 4 on the inner surface of the motor base 4 so as to be concentric with the rotating shaft 56 and project forward. The ends of the track 61 are located vertically, and the upper and lower end portions are formed as a start point 62 and an end point 63, respectively.
A central portion 64 of 61 is formed smoothly, and upward slopes 65, 65a are formed from the vicinity of the central portion 64 to a start point portion 62 and an end point portion 63,
Start point 62 and end point 63 corresponding to the tops of the slopes 65, 65a
Abutments 66, 66a are protruded.

The clamp operation cam 60 includes a cylindrical cam 68 having a cam surface 67 protruding from the outer periphery thereof, a clutch disengagement body 69 on a surface adjacent to the clutch plate 59 and the band roller 58 of the cylindrical cam 68, The swing operation body 70 of the unit 6 is provided. The cylindrical cam 68 includes an output lever 39 and a spring receiving lever.
In the forward inclined state of 50, the first and second rollers 48 and 51 are circumscribed or close to the outer peripheral surface where the cam surface 67 is not provided, and the cam surface 67 continuously forms the inclined surface 71 and the arc surface 71a. And the first and second rollers 48, 51
Is pressed. In the cylindrical cam 68,
A mounting recess 72 for mounting the clutch release body 69 is formed on the adjacent surface of the clutch.

The mounting recess 72 is concentric with the cylindrical cam 68 and has a small-diameter circular recess 73 and an opposite side of the cam surface 67.
That is, a concave notch 74 continuously formed in the circular concave portion 73 on the diameter line Z passing through the inclined surface 71 and the arc surface 71 a on the cam surface 67.
Consisting of In the mounting concave portion 72, a base shaft 75 parallel to the rotary shaft 56 protrudes on the cam surface 67 side on the diameter line Z, and a spring hole 76 parallel to the rotary shaft 56 on the concave notch 73 side on the diameter line Z.
And a pressing spring 77 is inserted into the spring hole 76 so that the tip of the pressing spring 77 projects from the spring hole 76.

The clutch disengagement body 69 has the same thickness as the circular recess 73, has an outer diameter slightly smaller than the circular recess 73, and has a shaft base 78 having a shaft hole 78 slightly larger than the diameter of the rotary shaft 56. In addition, a key 80 is provided on the extension of one radius of the ring base 79 so as to protrude therefrom, and a pin hole 81 slightly larger in diameter than the base shaft 75 is provided at a position corresponding to the base shaft 75 in the ring base 79. Is provided. And the pin hole 81 of the clutch release body 69
The base shaft 75 and the rotating shaft 56 are loosely fitted in the shaft holes 78, respectively, and the annular base 79 and the unmating key 80 are loosely fitted in the circular recess 73 and the concave notch 74, respectively. Is urged toward the clutch plate 59 by the pressing spring 77.

The clutch plate 59 includes a clamp operation cam 60
A concave surface 82 having the same shape as the circular concave portion 73
, And a plurality of engaging recesses 83, 83a,... Having the same shape as the concave notch 74 are provided at equal intervals on the outer peripheral edge. Then, the hanging key 80 is placed on the track 61, and the track 61
When the detaching key 80 slides on the slopes 65, 65a on the side of the start point 62 and the end point 63 on the upper side, the key 80 is pressed toward the circular concave portion 73, so that the key 80 fits into the engaging concave portions 83, 83a. Therefore, the clutch plate 59 and the clamp operation cam 60 are not connected. Also, on the smooth central portion 64 on the track 61, the detaching key 80 is in a non-contact state with the central portion 64 at intervals, so that the detaching key 80 located on the central portion 64 is The pressing spring 77 fits into the engaging recesses 83, 83a,..., And the clutch plate 59 and the clamp operation cam 60 are connected.

In the cylindrical cam 68, a band roller
A mounting shaft 84 for mounting the swing operation body 70 is formed on a surface adjacent to the mounting 58. The mounting shaft 84 is concentric with the cylindrical cam 68, and has a small arc-shaped protruding annular shaft formed by cutting out a part of the circular shaft so as to form an excellent arc. The notch range of the mounting shaft 84 extends over a range of 90 degrees from a position corresponding to the axis of the hanging key 80, and the notch end face of the mounting shaft 84 is
5, 85a.

The swing operating body 70 has an annular ring shaft 86 into which the mounting shaft 84 is loosely fitted, and the engaging surfaces 85, 85a.
An engaging projection 87 protruding in the centrifugal direction of the annular shaft 86 is provided on the outer periphery of the annular shaft 86 corresponding to the engaging projection 87. ing. And, in the fan-shaped protruding piece 88, a pressing cam 89 having an inclined surface having an apex inclined on the end point 63 side of the track 61 is provided on a side surface on the clutch plate 59 side,
The pressing cam 89 slides and presses the inclined surface of the claw 23 provided on the fixed substrate 13 of the clamp unit 6.
Slides on the claw piece 23 and presses it to cause the clamp unit 6 to swing. still,
In the oblique girder state of the clamp unit 6, the back surface of the claw piece 23 is provided with an interval with the hanging key 80 of the hanging body,
No contact is made with this.

Further, a steel ball 91 is mounted in a steel ball hole 90 provided at an appropriate position on the arcuate end surface of the mounting shaft 84 so as to be able to protrude and retract by the elasticity of a spring 92, while a band roller is in contact with the end surface of the mounting shaft 84. A plurality of recesses 93, 93a... Are provided on the adjacent surface of the steel ball 91 so as to correspond to the orbital circumference of the steel ball 91, and the steel ball 91 is removably fitted into the recesses 93, 93a. Axis of rotation
It can be rotated around 56. In the figure, when the rotation shaft 56 is rotated counterclockwise from the state where the trip key 80 is located at the start point 62 of the track 61 (forward rotation start position X), the trip key 80 is moved to the end point 63 of the track 61. Until the rotation key 56 is rotated rightward from the state where the unlocking key 80 is located at the end point 63 of the track 61 (reverse rotation start position Y), the unlocking key 80 is moved to the end point of the track 61. Before reaching 63, the clamp operation cam 60 is rotated by the steel ball 91 with the rotating shaft 56. When the unlocking key 80 reaches the end point 63 or the start point 62 of the track 61 by turning left or right, the clamp is clamped. The rotating shaft 56 runs idle with respect to the operation cam 60. The clamp operation cam 60 constituted by the steel ball 91 and the concave portions 93, 93a... Is rotatable with the rotation shaft 56. When it reaches the section 62, the clamp actuating cam
Since it is sufficient that the shaft 60 idles with respect to the rotary shaft 56, the present invention is not limited to such a means.

Next, the band guide housing 5 will be described. A band insertion port 94 and an outlet 95 are provided below the rear end and the front end of the band guide housing 5, and inside the band guide housing 5, two folds are provided between the band insertion port 94 and the outlet 95 at the front and rear. A meandering band guide path 97 provided with portions 96 and 96a is provided. still,
The width of the band guide path 97 is naturally formed to be slightly larger than the width of the band T. The band guide path 97 includes the band roller 58, a binding mechanism 98 disposed horizontally above the band roller 58 in the length direction of the band guide housing 5, and an upper roller disposed close to the band roller 58. It is composed of 99 and so on.

The binding mechanism 98 includes a band guide housing 5
Swing block 100 swingably installed in the upper front half of the
And a linear cam 10 for swinging the swing block 100.
Consists of 1 The swing block 100 is made of a substantially L-shaped member that is long in the front and rear direction and protrudes downward at the front. A roller trochanter 102 is rotatably provided at a lower front portion, and a swing support shaft 103 is protruded from a rear side surface. , The spherical trochanter 104 that protrudes rotatably below the rear end
Are provided in the width direction. Then, a vertically and vertically long guide hole 105 is provided in the band guide base 9 and the base cover 10, and the swing support shaft 103 is rotatably and vertically slidably mounted in the guide hole 105. The position of the swing block 100 is regulated by the mounting. Here, the other end of the torsion coil spring 106, one end of which is hung on the base cover 10, is hung above the swing support shaft 103 in a slidable state, and the swing support shaft 103 is urged downward. doing. Also, the swing block 100 has a flat surface formed on the upper surface, and a notch formed in the rear end of the upper surface in the width direction of the swing block 100, so that a band holding portion 107 is formed at a position corresponding to the spherical trochanter 104. Is provided. Further, a band guide plate 108 made of a leaf spring or a steel plate is protruded at the tip end of the swing block 100 so as to be inclined upward, and the band guide plate 108 is moved from the band outlet 95 and fixed to the lower portions of the clamps 14 and 15. An adhesive pressing portion 109 is provided by projecting to the vicinity of the height and bending the tip of the band guide plate 108. Reference numeral 110 denotes a band guide piece made of a spring plate projecting rearward above the rear end of the swing block 100. Reference numeral 111 denotes a guide roller disposed below the roller trochanter 102.

The linear motion cam 101 is parallel to the horizontal swing block 100 and
The swing block 100 is horizontally arranged so as to support the swing block 100 on the rear side of the roller trochanter 102 via the spherical trochanter 104. The translation cam 101 is made of a substantially L-shaped member that is long in the front-rear direction of the band guide housing 5, and has a cam surface 112 extending from the front end to the rear end of the upper surface thereof, and a band at the rear end. An arc-shaped first folded portion where T slides
The translation cam 101 has first and second slide shafts 114 and 115 protruding from the front and rear ends thereof on both sides thereof. Also, the band guide base 9 and the base cover 10 are provided with first and second slits 116 and 117 which are horizontal and long in the front and rear directions.
The first and second slide shafts 114,
115 is slidably mounted, and the linear motion cam 101 reciprocates linearly in the front and rear direction of the band guide housing 5 (back and forth in the band line direction). The slide shafts 114 and 115 are the first,
The second slits 116 and 117 are located at the rear ends. Also, the first
The slide shaft 114 spans a pull-back spring 118 between the slide shaft 114 and a proper position at the lower rear end of the base cover 10.
This urges the first slide shaft 114 toward the rear end of the first slit 116.

The cam surface 112 is formed by engraving the horizontal upper surface of the linear motion cam 101 located below the swing block 100 in a predetermined shape, and the cam surface 11 for the roller rotator 102 and the spherical rotator 104 is formed.
2a and 112b are continuously formed before and after the band line direction.
The roller trochanter cam surface 112a is formed by cutting the end of the linear motion cam 101 obliquely to provide an upwardly inclined surface, and forming the top of the inclined surface (the same plane as the upper surface of the linear motion cam 101) as the band fusion position A. doing. Further, a curved surface is provided continuously at the band melting position A, and the curved surface is a heater retreat position B. or,
A pressure-cooling / cutting position C is formed by providing a smooth surface of a predetermined length (the same plane as the upper surface of the linear motion cam 101) continuously with the heater retreat position B. The spherical trochanter cam surface 112b is provided with a separate curved surface shallower than the above-mentioned curved surface continuously at the pressure cooling / cutting position C, that is, the deepest portion is formed at substantially the same depth as the protruding length of the spherical trochanter 104, Such a curved surface forms a horizontal holding position D of the swing block 100, and a horizontal upper surface which is continuous with the horizontal holding position D forms a secondary clamping position E of the band T.

Then, the horizontal state of the swing block 100, that is, the first and second slide shafts 114 and 11 of the translation cam 101
5 is positioned at the rear end of the first and second slits 116 and 117, the bending guide 119 is arranged to face the first folded portion 96 with a band passage width (interval into which the band T can be inserted), and A passage guide 120 parallel to the horizontal surface portion 113 of the translation cam 101 is disposed to face the curved guide 119 so as to face the curved guide 119. In addition, the curved guide 119 and the passage guide 120
It is fixed to the band guide base 9. In the band guide base 9 and the base-cover 10, a guide plate 121 made of a leaf spring is horizontally arranged and fixed from above the band holding portion 107 formed at the rear end of the swing block 100 to the upper end of the curved guide 119. , Swing block 100
The band T is strongly clamped (secondary clamp) between the band holding portion 107 and the lower portion of the guide plate 121 corresponding to the position above the band holding portion 107 (hereinafter, referred to as a band pressing portion 121a). Has formed. The guide plate 121 is fixed to the band guide base 9 and the base-cover 10 by inserting insertion pieces 122, 122a projecting from both side surfaces of the guide plate 121 into the band guide base 9 and the base-cover 10. A swing guide plate 123 having a length from the front end of the swing block 100 to the front end of the guide plate 121 is horizontally arranged at a position higher than the guide plate 121.

The swing guide plate 123 has its base formed in a strip shape, a horizontal wing plate 124 horizontally protruding from the front side surface of the base, and a vertical plate 125 protruding upward from the rear end side surface. At the same time, a horizontal tail plate 126 protrudes outward from the end of the vertical plate 125. Then, corresponding to the horizontal wing plate 124 and the horizontal tail plate 126, the horizontal wing plate 124 and the horizontal tail plate 126 are mounted on the support holes 127 and 127a provided in the band guide base 9 and the base cover 10, respectively. The swing guide plate 123 is swingable with the tail plate 126 as a fulcrum. The support hole 127 for the horizontal wing plate is wider than the horizontal wing plate 124, and is formed in a vertically long shape within the swing range of the front portion of the swing guide plate 123, and the upper end portion is formed in a downward descending shape. The support hole 127a for the horizontal tail plate is formed to be large enough to allow the swing guide plate 123 to swing, and the upper end is formed to be inclined backward and downward. Further, the swing guide plate 123 is urged downward by a torsion coil spring 128 provided above the band guide base 9,
In the horizontal state of the swing guide plate 123, the horizontal wing plate 124 and the horizontal tail plate 126 are located below the support holes 127 and 127a.

Then, from the upper surface of the band guide plate 108 and the swing block 100, the first folded portion 96 of the linear motion cam 101 is formed.
And the horizontal plane portion 113, and the swing guide plate 123, the guide plate 121, the curved guide 119, and the passage guide 120 opposed to each other, from the band outlet 95 in the band guide path 97 to the second folded portion 96a. Make up the route.

The second folded portion 96a of the band guide path 97
Is formed by an outer peripheral surface of the band roller 58 and an arc guide 128 arranged on an outer circle concentric with the band roller 58, and a mountain-shaped passage 129 is provided from the second folded portion 96a to the band insertion port 94. ing. The ridged passage 129 has ridge-shaped passage guides 130 and 130a arranged vertically, and a part of the outer peripheral surface is interposed between the lower passage guide 130a and the arc guide 128 and close to the band roller 58. The upper roller 99 is arranged in such a way as to perform.

The upper roller 99 is formed of a bearing, and is connected to an eccentric shaft 132 eccentric upward with respect to the center of a roller shaft 131 to which the inner ring of the bearing is fixed. , Eccentric shaft 1
A disk 133 is fixed to the tip of 32. A rod-shaped handle 134 is projected on the circumference of the disk 133, and a spring 135 is hooked between the handle 134 and the base cover 10 at an appropriate position.
It is urged to circumscribe 58. Therefore, the above disk 133
When is rotated in a direction against the elastic force of the spring 135,
The upper roller 99 is separated from the band roller 58, and can secure a passage width when the band T is inserted.

The upper end of the band guide housing 5 (band guide base 9 and base cover 10) is slightly lower than the height of the fixed grip 15 and is formed horizontally. A convex wall 136 is formed to extend upward at the rear of the upper end, and a front end face of the convex wall 136 is formed vertically, so that an upper end of the band guide housing 5 is formed as a heater mounting portion 137. In the heater mounting portion 137, a heater holder 138 is provided so as to be movable in the front-rear direction on the band line L and swingable up and down. The heater holder 138 is formed in a substantially strip shape. A rectangular hot plate 139 is provided at the front end, and the hot plate 139 is provided so as to be movable to the upper front part of the band outlet 95 on the band line L and to be movable forward and backward so as to contact the lower parts of the fixed clamps 14 and 15. I have.

Further, the heater holder 138 is formed so as to have a small width by notching both rear portions thereof so as to correspond to the interval width of the convex wall 136, and to form a right angle portion provided at the base of the small width portion, A first stopper 141 abuts on a front end surface of the convex wall 136 (hereinafter, referred to as an abutting portion 140).
Further, on the side of the base cover 10 side of the heater holder 138, projections 142, 142a are provided on the front and rear sides, and a plate-like guide 143 is projected below the front projection 142, and the rear projections are provided.
A second rod-like member is provided via a bracket 144 protruding from a lower portion of the second member 142a.
The stopper 145 protrudes outward and perpendicular to the base cover 10.

The guide 143 has an outer surface in front of the upper end of the base cover 10 and a guard rail 146 which is spaced from the outer surface.
It is located between them. In addition, a rectangular plate-shaped extruding protruding piece 147 is formed downward at an appropriate position behind the heater holder 138. Further, the heating plate 139 is heated by a heater holder 148 formed of a plate spring provided at the lower portion of the cover body 3.
It is biased downward to the 137 side. The heating plate 139 is connected to a power source (not shown) via electric wires 149 and 149a connected thereto, and constantly heats the heating plate 139.

Next, the band tension mechanism 150 provided on the outer surface of the base cover 10 and the heater operating member 151 will be described. First, the band tension mechanism 150 is
A lower portion of the rear end of a substantially rectangular tension substrate 152 which is long in the front-rear direction is pivotally attached to the base cover 10 via a pivot 153, and the tension substrate 152 is provided with an elongated hole 154 substantially corresponding to the second slit 117. A shaft recess 155 is continuously formed diagonally above the rear end of the elongated hole 154, and the second slit is formed.
When the second slide shaft 115 is located at the rear end of the shaft 117, the shaft stopper recess 155 is engaged with the second slide shaft 115 so as to be detachable. In such an engaged state, the tension substrate
The reference numeral 152 is inclined forward and downward about the pivot 153 as a fulcrum. In addition, on the tension substrate 152,
, A sliding roller 156 is rotatably pivoted.

Further, the lower part of the leg 157, which is formed continuously in the front lower part of the tension substrate 152, is
The second tension adjusting plate 158 is disposed in the band guide housing 5 through the base cover 10 in the inclined state. Tension adjustment plate 15 provided on base cover 10
8 is substantially trapezoidal, that is, the tension substrate 152
And the upper end of the through hole 159 is inclined backward and downward.

The tension adjusting plate 158 has an appropriate area,
A permanent magnet 160 is provided below the tension adjustment plate 158 so as to be able to move back and forth with the tension substrate 152 inclined as described above. The magnet 160 forms a magnetically attached portion 161 to the tension adjusting plate 158 with its upper surface horizontal, and the magnet 160 is fixed on an L-shaped plate-shaped bracket 162.

The bracket 162 has its side end slidably in contact with the band guide base 9 and the base cover 10. The bracket 162 has an upright wall 163 behind the bracket 162, and is parallel to the upright wall 163. Fixed plate installed at the rear
A screw rod 165 (the screw is omitted in the figure) is screwed to the screw 164, and a disk handle 166 is fixed to the base end of the screw rod 165 protruding backward from the fixing plate 164. When the disk handle 166 is rotated, both sides of the bracket 162 are in sliding contact with the band guide base 9 and the base cover 10 and do not rotate. Therefore, the magnet 160 is moved back and forth, and the tension adjusting plate 158 is magnetically attached to the magnet 160. The area can be adjusted, thereby adjusting the force for pulling the tension substrate 152 downward. If the magnet 160 is an electromagnet, the magnetic force can be changed.In this case, the magnet 160 may be fixedly disposed below the tension adjusting plate 158 with the tension substrate 152 in the above-mentioned inclined state. No means for moving is required.

In addition, on the front upper part of the tension substrate 152,
During the retreat of the hot plate 139 (heater holder 138), the hot plate 13 is positioned at a position close to the band T between the primary and secondary clamps.
A temporary stop mechanism 167 for temporarily stopping the substrate 9 is disposed horizontally with respect to the tension substrate 152. Temporary stop mechanism 167
In the state where the tension substrate 152 is in a horizontal state, that is, the slot 154 is aligned with the second slit 117, the stop mechanism 16 is temporarily stopped.
The stop plate 168 provided at 7 is located on the same plane as the second stopper 145 provided at the heater holder 138 and in front of it. Reference numeral 169 denotes a support plate fixed to the tension substrate 152. The support plate 169 has a pair of screw rods 171 provided with long holes 170 in front and rear directions and projecting vertically outward from the tension substrate 152.
, 171a penetrate the slot 170 and a nut (not shown)
In the axial direction of the screw rods 171 and 171a and the oblong hole 170.
The position of the spindle plate 169 is adjusted in the front-rear direction.

Further, the upper end surface of the support plate 169 is made smooth, a rectangular plate-shaped protruding shaft 172 is protruded upward substantially at the center thereof, and a deformed shaft hole 173 provided at the center of the stop plate 168 is formed. The stop plate 168 is mounted on the convex half shaft 172 so as to be rotatable only in one direction (left rotation in plan view). Also, outside the front of the stop plate 168,
A pull-down spring 174 is stretched between the inner surface of the base cover 10 and the outer surface of the base cover 10 to urge the stop plate 168 in a rotatable direction. The stop plate 168 has a protrusion 175 protruding from the heater holder 138 side. When the tension stopper 152 is in a horizontal state and the second stopper 145 contacts the rear end surface of the protrusion 175 while the heater holder 138 is moving forward. The stop plate 168 rotates so as not to hinder the advance of the heater holder 138, and when the heater holder 138 is retracted, the second stopper
When 145 contacts the front end surface of the projection 175, the stop plate
Since 168 does not rotate, the second stopper 145 is stopped, and the heater holder 138 is stopped temporarily during the retreat. 176 is a stop plate 168 that penetrates perpendicularly to the convex half shaft 172.
This is the retaining shaft.

The heater operating member 151 is provided with the second slide shaft 11.
5 and a push-out plate 177 provided so as to be capable of engaging and disengaging, and a push-out arm 178 of a heater holder 138. The push-out arm 178 is vertically formed on the lift-off plate 177 to be integrally formed on the tension board 152. Heater heater 151
Are placed on top of each other. Also, on the outer surface of the base cover 10, in a vertical direction below the rear end of the second slit 117,
Further, a shaft pin is protruded below the tension substrate 152, and the shaft pin is formed as a support shaft 179 of the heater operating member 151.
A long slot 18 at the bottom of the hanging plate 177
0, the heater operating body 151 can be moved up and down with respect to the spindle 179, and the heater operating body is moved by the spindle 179.
151 is swingably provided.

The hanging plate 177 is provided with a protruding projection 181 at the front, and when the heater operating member 151 is upright at an upper position with respect to the support shaft 179, the projection 181 is provided.
The upper end surface of the second slit 117 is formed so as to slope forward and downward so as to correspond to the position between the upper and lower ends of the second slit 117, and the upper end surface forms a sliding surface 182 of the second slide shaft 115. Moving surface 182
Is located at the base of the vertical front end surface of the push arm 178. Reference numeral 183 denotes an engaging recess formed by notching the upper end of the push-out arm 178 from the upper and lower middle portion of the front end face of the pushing arm 178 to the upper part of the detaching plate 177. The engaging recess 183 is an insertion opening in which the front end face of the pushing arm 178 is opened. 184 and an engaging portion of the second slide shaft 115 depressed from the top of the sliding surface 182.
185. When the heater operating member 151 is in the upright state, the vertical rear end surface 186 of the hanging plate 177 slidably abuts on a sliding roller 156 provided on the tension substrate 152, and the heater operating member 151 moves relative to the support shaft 179. In the lower position, a projecting wall projecting rearward from the upper part of the rear end face 186
187 contacts the sliding roller 156.

The pushing arm 178 has a pushing rod 188 projecting into the band guide housing 5 at the upper end side, and the pushing rod 188 behind the pushing protrusion 147 of the heater holder 138 when the heater operating member 151 is in an upright state.
Are provided so as to be movable back and forth by the swing of the heater operating member 151, and when the pushing rod 188 advances, the pushing protrusion 14
7 is pressed. 189 is the base cover
The insertion hole of the push rod 188 corresponding to the moving range of the push rod 188 provided in 10. Further, a pulling spring 190 is bridged between the front of the projecting portion 181 of the hanging plate 177 and the upper rear end of the base cover 10, and the pulling spring 190 urges the heater operating member 151 in a direction (rearward) for holding the heater operating member 151 in an upright state. ing. Also, push arm 178 and heater holder
A return spring 191 is hung between the rear projecting pieces provided on the side of the 138, and the heater holder 138 is urged rearward by the return spring 191.

On the outer surface of the base cover 10,
Drive source by connecting first and second limit switches 192 and 193
55 is rotated in reverse (clockwise). That is, the first
A first limit switch 192 is disposed at a front end of the slit 116, a second limit switch 193 is disposed at an upper end of a support hole 127 for a horizontal blade, and a first slide shaft 114 is positioned at a front end of the first slit 116. And the first limit switch
The drive source 55 is set to rotate in the reverse direction (clockwise) when the horizontal blade 124 is separated from the second limit switch 193 while the 192 is pressed.

Further, a band guide opening 194 formed in the mounting portion 2 on the upper surface of the cover 3 so as to have a substantially band-shaped opening in the band line direction from the band outlet 95 corresponding to the band line L is formed on the cover 3. It is provided continuously to the lower part of the front end face, and the state before the start of the main body 1, that is, the state in which the clamp unit 6 is cross-hatched and the movable clamp 14 is separated from the fixed clamp 15 in the lower front part (the two clamps 14, 15). At the primary clamp position K), a substantially band-shaped band introduction port 195 having a length extending to the rear of the band guide plate 108 is formed so as to correspond to the rear of the band guide plate 108 from between the clamps 14 and 15. The guide port 194 and the band introduction port 195 are continuously formed at respective front and rear ends. One end of the band guide port 194 on the motor base 4 side is formed as a binding band separating end 196.

The main body 1 holds the band T with a fixed clamp 15.
Turn downward from behind the moving and fixed clamp 14,
There is a case where the band T is introduced between 15 and a case where the band T is introduced from above from between the moving and fixing clamps 14 and 15, and the latter is more suitable for packing a smaller package W in the former. I have. The band inlet 195 is formed in the mounting portion 2 so as to correspond to both of the above two types of primary clamps and to be provided between the two clamps 14 and 15 in the band line direction rearward. However, in the former type (hereinafter, referred to as an A type), it is sufficient that the band introduction port 195 is formed so as to correspond to the rear side of the fixed clamp 15 at the primary clamp position K in the band line direction. In the latter type (hereinafter, referred to as a B type), a band introduction port 195 may be formed between the two clamps 14 and 15 at the primary clamp position K.

Reference numeral 197 denotes a fixing portion of the cover body 3. The fixing portion 197 is formed in the shape of a rectangular substrate, and protrudes forward from the upper front end of the outer surface of the base cover 10. or,
The main body 1 may be provided with a band guiding arch 198. This arch 198 loops a U-shaped cross section between the band guide port 194 and the band introduction port 195, and connects one end thereof to the fixing portion. 197, and the other end is fixed to a bracket 199 which is arranged at an appropriate position on the mounting portion 2. Here, a band introduction port corresponding to the above two types of mounting portions 2 is provided.
In the A type, the lower end of the band guiding arch 198 on the 195 side is directed backward in the band line direction of the fixed clamp 15 at the primary clamp position K, and is turned downward from behind the fixed clamp 15 to move and fix the fixed clamp 15. Automatically introduce band T between 15 and B type,
The band T is directed between the clamps 14 and 15 at the primary clamp position K, and the band T is automatically introduced between the movable and fixed clamps 14 and 15.

Next, the operation of the binding machine will be described. In the state before the start of the main body 1 (primary clamp position K),
The clamp unit 6 is cross-hatched, the moving clamp 14 is separated from the fixed clamp 15 at the lower front, and the band guide 54 is located below the fixed clamp 15. In such a state, the package W is placed on the placing section 2. Is placed. Band T in advance
The band guide 194 passes from the band insertion port 94 through the band guide path 97, the band outlet 95, and the band guide plate 108.
, The tip of the band T is projected. In inserting the band T, the disc 133 is rotated counterclockwise against the elastic force of the spring 135 to separate the upper roller 99 circumscribing the band roller 58 from the band roller 58 and insert the band T. With the passage width secured, the band T is pushed into the band insertion port 94 in such a state, and the tip of the band T is projected from the band guide port 194.

After placing the package W on the placing section 2, the disk 133 is rotated counterclockwise in the same manner as described above, and the tip of the band T protruding from the band band guide port 194 is pulled out. Is passed from the band guide port 194 to the band introduction port 195, and the tip of the band T is pressed upward against the band guide 54, whereby the tip of the band T is bent upward, and the tip of the band T is lowered downward from behind the fixed clamp 15. To be introduced between the moving and fixed clamps 14 and 15. The band T is
Wound on a band reel (not shown) mounted on the main body 1,
It is supplied to the main body 1.

Then, the drive source 55 is operated, and the rotary shaft 56 connected to the drive shaft is rotated forward (leftward). The normal rotation start position X of the track 61, that is, the starting point 62 where the unlock key 80 is located
Are not fitted in the engaging concave portions 83, 83a,... Of the clutch plate 59, but the mounting shaft 84 of the cylindrical cam 68 is not fitted.
Are provided in the recesses 93 and 93a of the band roller 58.
... the cylindrical cam 68 rotates together with the rotary shaft 56 by being fitted to any of them. When the hook release key 80 slides on the slope 65 from the starting point 62 on the track 61 and reaches the center 64, it is fitted into the engaging recesses 83, 83a by the pressing spring 77, and the clutch plate 59 and the cylindrical cam The cylindrical cam 68 rotates together with the rotary shaft 56 even when an external force acts in a direction opposite to the rotation of the cylindrical cam 68.

Subsequently, the inclined surface 71 of the cam surface 67 of the cylindrical cam 68 presses the output lever rod 39 rearward via the first roller 48 against the elastic force of the link spring 47. The band guide 54 retreats from the lower part of the fixed clamp 15 via 43, and is continuously pushed down via the connecting rod 40, and the lever rod 38 retreats. The roller 30 that has been pushed down by the pressing portion 42 of the pushing down lever 38 against the elastic force of the clamp joining spring 30 raises the moving clamp 14 by releasing the pushing down force. Then the above cam surface
The inclined surface 71 in 67 presses the spring receiving lever 50 backward via the second roller 51, and elastically compresses the clamp spring 52, thereby joining the movable clamp 14 to the fixed clamp 15 via the spring receiving plate 32. , The band T has both clamps 14,
Sandwiched between fifteen. In such a clamping state, both clamps 1
The ridges 16 and the grooves 17 provided on 4 and 15 mesh with each other to prevent the band T from slipping off. Subsequently, the engaging surface 85 of the mounting shaft 84
Engages with the engagement protrusion 87 of the annular shaft 86 in the swing operation body 70, and rotates the swing operation body 70 together with the cylindrical cam 68.
Accordingly, the pressing cam 89 pressing the claw 23 provided on the fixed substrate 13 gradually moves in the pressing release direction against the elastic force of the unit operating spring 33, and moves and fixes the band T in a pinched state. The clamps 14 and 15 are gradually moved to the band guide housing 5 side, and the two clamps 14 and 15 are positioned at the upper front part of the band outlet 95 and oscillate until the release key 80 reaches the slope 65 a of the track 61. To end.

Further, the cylindrical cam 68 and the swing operating body 70 continue to rotate, and the arcuate surface 71a of the cam surface 67 presses the first and second rollers 48 and 51, whereby the output lever 39 and the spring receiving lever are pressed. 50 is locked in the upright state, and the clamp spring 52
By further compression, the joining force of the movable clamp 14 to the fixed clamp 15 is increased, and the band T is firmly held. When the release key 80 moves on the inclined surface 65a of the track 61, the release key 80 is pressed by the inclined surface 65a, disengages from the engaging recesses 83, 83a of the clutch plate 59, and engages with the cylindrical cam 68 by the clutch plate 59. Is released and the rotation of the cylindrical cam 68 with the rotating shaft 56 by the steel ball hole 90 causes the key to be removed.
When 80 reaches the end portion 63 and abuts the stop 66a, the cylindrical cam 68 cannot be rotated to the left, and is fixed to the rotating shaft 56 because the hooking-off key 80 is fitted in the concave notch 74. Only the band roller 58 (and the clutch plate 59) rotates. Note that the operation up to this point is performed while the hanging key 80, which is less than half a rotation of the rotating shaft 56, moves from the start point 62 to the end point 63 on the track 61. Then, by the above operation, the band T sandwiched between the movable and fixed clamps 14 and 15 is arranged on the band line L in the upper front part of the band outlet 95.

During the above operation, the band roller 58 rotates leftward, and the band T is rewound backward in the band line direction of the band outlet 95 by the upper roller 99 pressed against the band roller 58. Since the tip of the band T is clamped (primary clamp) between the movable and fixed clamps 14 and 15, the band T is unwound and the band T
And nervous. The first folded portion 96 of the translation cam 101 is pressed by the tensioning band T. here,
The second slide shaft 115 of the linear motion cam 101 is
2, the force for pushing down the tension board 152 by the magnet 160 magnetizing the tension adjusting plate 158 and the force for urging the first slide shaft 114 rearward by the pullback spring 118. Band T more than
Is tensioned and presses the first folded portion 96, the tension substrate 152 swings upward around the pivot 153, and the second slide shaft 115 slides forward from the shaft stopper recess 155 to the second slide shaft 115. At this time, the tension of the band T is determined by the magnet 160
The magnetic adhesion area of the tension adjustment plate and the tension adjustment plate 158
Adjustment is made by the movement of magnet 160 relative to 158.

The tension substrate 152 is a tension adjusting plate.
158 is horizontal by contacting the upper end of the through hole 159, and the elongated hole 154 overlaps the second slit 117. At the same time, the stop plate 168 provided in the stop mechanism 167 is
It is located on the same plane as the second stopper 145 provided at 138 and in front of it. Also, the engagement portion is formed by the second slide shaft 115.
Pressing the front end of the 185, the heater operating body was in an upright state
151 swings forward, and the pushing bar 188 pushes the pushing protrusion 147 of the heater holder 138 forward, so that the heater holder 138 (hot plate 139) moves forward. Even if the second stopper 145 contacts the rear end face of the projection 175 of the stop plate 168 during the advance of the hot plate 139, the stop plate 168 rotates and does not hinder the advance of the heater holder 138.

The first folded portion 96 by the strained band T
The linear motion cam 101 moves forward by the pressing of the ball, and the spherical trochanter 104 of the swing block 100 moves to the horizontal holding position D of the cam surface 112.
When it is located at the secondary clamp position E from the
A band T in a tension state is strongly clamped (secondary clamp) between the band press contact portion 121a corresponding to the upper position of the band 107 and the package T between the moving and fixed clamps 14, 15 (primary clamp). The band T wound around W is held tight. In such a state, the tightening direction of the band T is the same as the pressing (joining) direction of the moving clamp 14 with respect to the fixed clamp 15 that sandwiches the band T, and the band T rolls the moving clamp 14 together with the packaged material W. And the fixed clamps 14 and 15 further increase the clamping force, and the band T between the two clamps 14 and 15 never comes off.

On the other hand, the hot plate 139 is provided between the band T wound around the lower portion of the fixed clamp 15 and the band T tightened by the band pressing portion 107 and the band pressing portion 121a, that is, the band T between the primary clamp and the secondary clamp. Move forward. At the same time, the roller trochanter 102 of the swing block 100 slides on the inclined surface of the cam surface 112 and is located at the band melting position A,
Swing the swing block 100 upward, and move the band guide plate
The bonding press 109 of 108 presses the heating plate 139, which reaches the band T between the primary clamp and the secondary clamp, together with the band T so as to swing the heater holder 138 upward, and presses it upward. The band T is sandwiched between the clamp 109 and the moving and fixing clamps 14 and 15 to melt the bonded portion of the band T. The band T between the primary clamp and the secondary clamp
Presses the swing guide plate 123 upward because of the tension, but the tilt angle of the swing guide plate 123 is
The band T is restricted by the upper ends of the support holes 127 and 127a, and the band T in such a tension state is always inclined at a constant angle.

The roller trochanter of the swing block 100
When 102 is located at the heater retreat position B on the cam surface 112, the swing block 100 swings downward, lowering the adhesive press section 109, and the melting of the band T is completed. At this time, the hot plate 139 is disengaged from the adhesive press portion 109 and the moving and fixed clamps 14 and 15, and the hot plate 139 is retracted by the pulling spring 190 and the return spring 191. During the retreat of the hot plate 139, the second stopper of the heater holder 138
145 contacts the front end face of the projection 175 of the stop plate 168,
Unlike when moving forward, stop plate 168 does not rotate.
5 stops the second stopper 145, and the hot plate 139 stops temporarily during the retreat. At this time, the tip of the hot plate 139 is in a state close to the band T between the primary clamp and the secondary clamp.

The roller trochanter of the swing block 100
When the position 102 is located at the pressure cooling / cutting position C of the cam surface 112, the swing block 100 is swung upward again, and the melted portion of the band T is pressed upward by the adhesive pressing section 10 which is pressed.
The band T is pressurized and cooled between the movable clamp 9 and the movable and fixed clamps 14 and 15, and at the same time, the band T is pushed up and pressed along the band guide plate 108, so that the band T is inclined between the primary and secondary clamps. The inclination angle of the band T increases, and the lower part of the hot plate 139 waiting at the close position is brought into contact with and pressed together with the band T, and the band T is melted and cut by the hot plate 139 near the bonded portion of the band T. The band T is cut at such a position until the inclined state does not change, and the binding of the package W is completed. When the band T is cut, the swing guide plate 123 which has been inclined upward by the band T which has been tense, swings downward, and the swing guide which has pressed the second limit switch 193 until then. The horizontal wing plate 124 of the guide plate 123 is separated from the second limit switch 193. Since the first slide shaft 114 of the translation cam 101 is located at the front end of the first slit 116 and presses the first limit switch 192 before the band is cut, the driving source The main shaft 1 is returned to the initial state, that is, the movable and fixed clamps 14 and 15 return to the primary clamp position K in the reverse order.
In this state, the clamps 14 and 15 are bound together with the package W by the band T.
Swings backward to the primary clamp position K in a state where it cannot be fully opened. During this movement, the band T intersects with the binding band separation end 196 of the band guide port 194, so that the band T The clamps 14 and 15 are forcibly separated, and then the clamps 14 and 15 return to the initial state.
At the time of such return, the tip of the band T is sent out to the band guide port 194 by the band roller 58.

Although the operation state of the A type has been described above, the operation type of the B type is different from that of the first embodiment only in the state of the primary clamp. FIG. 28 shows a process in which the primary clamped band T is positioned on the band line L and the package W is wound. The difference from the A type (see FIG. 2) is that, in the primary clamp state, the tip of the band T protrudes below the movable and fixed clamps 14 and 15. The protruding portion corresponds to the bonding portion of the band T, and when the hot plate 139 advances to melt the band T,
139 bends below the moving clamp 14. Except for the above points, it is the same as the A type.

In the case where the band guiding arch 198 is provided, the band T is automatically guided from the band sending / outlet 95 to the band introducing port 195 along the loop of the band guiding arch 198 when the driving source 55 rotates clockwise. .

[0062]

In summary, the present invention is directed to the placing portion 2 of the package W
In the lower part, the moving clamp 14 disposed in the band line direction forward is placed at the rear of the primary clamp position K which is disposed on the side of the band line L and corresponding to the upper front part of the band outlet 95 on the band line L. Fixed clamp placed
The movable and fixed clamps 14 and 15 can be made thinner and narrower because the band T can be primary-clamped without the need for the slide table f, unlike the conventional case, because the slide table f is not required. Even if the clamps 14 and 15 are pulled out after the package W is bound, no slack occurs. It is possible to bind relatively small packages W that could not be bound in the past.
Further, the size of the binding machine can be reduced.

Since the clamps 14 and 15 are provided movably between the primary clamp position K and the upper front of the band outlet 95 on the band line L, the band clamped between the movable and fixed clamps 14 and 15 is provided. T sends out the band on the band line L
95, and the primary clamp a does not press the slide table f via the band T on the band line L as in the related art. The gap between the band T and the secondary and secondary clamps can be opened. Also, after binding the package W, 1
When the clamps 14 and 15 return to the next clamp position K, the clamps 14 and 15 bound together with the package W can be extracted.

Further, since a means for secondary clamping of the band T is provided at the rear of the band outlet 95 in the band line direction, the secondary clamping can be performed while maintaining the tension of the band due to rewinding. It can be effectively tightened by acting on the packing material W, and the moving clamp 14 arranged in the front in the band line direction is combined with the primary clamp by clamping the band T to the fixed clamp 15 behind it. Since the direction in which the band T is tightened and the direction in which the moving clamp 14 is pressed (joined) to the fixed clamp 15 holding the band T are the same, and the band T wraps up the moving clamp 14 together with the package W, the band T The tightening force is further applied to the pressing force of the movable clamp 14, the movable and fixed clamps 14 and 15 further increase the clamping force, and the band T between the clamps 14 and 15 does not come off. In addition, the tightening force of the band T on the package W can be increased, so that the binding device can be reduced in size without requiring a large force from a large driving source as in the related art. In addition, the above-mentioned problem becomes more remarkable as the size of the package W is smaller. Therefore, it is possible to completely eliminate the problem of loosening caused by the binding of small items which cannot be performed by the conventional binding machine. Can be bound without any trouble.

Further, since the band guide port 194 is formed in the placement section 2 in front of the band outlet port 95 in the band line direction corresponding to the band line L, the band T on the band line L is not affected. You can rewind without rewinding. On the other hand, when the two clamps 14 and 15 return to the primary clamp position K after the package W is bound, the side end of the band guide port 194 on the side of the primary clamp position K (the banding band separating end 19).
Since the band T intersects 6), the clamps 14 and 15 can be forcibly separated from the bonded portion of the band T, and the clamps 14 and 15 bound together with the package W can be extracted. Also, band guide 194 and band introduction 195
Are formed continuously, the band T that has been primary clamped can be moved on the band line without any adverse effect.

The band introduction port corresponding to the rear side of the fixed clamp 15 in the band line direction at the primary clamp position K.
Since the opening 195 is formed, the tip of the band T can be turned downward from behind the fixed clamp 15 and introduced between the clamps 14 and 15. Since the band introduction port 195 is formed between the clamps 14 and 15 at the primary clamp position K, the band T can be moved from above and introduced between the fixed clamps 14 and 15. It is easier to introduce between the clamps 14 and 15 than the A type, and in this case, unlike the above A type, the band T is
In addition, since only the moving clamp 14 is wound, it is effective to bind a smaller one. Further, since the band introduction port 195 which is formed to correspond to the band line direction rearward from the space between both clamps 14 and 15 at the primary clamp position K is formed continuously, the band inlet 195 is formed from above or from behind the fixed clamp 15 to below. Turn it around and put a band T between both clamps 14 and 15.
Can be selectively used only by introducing the band T between the clamps 14 and 15.

Further, the hot plate 139 is provided so as to be able to advance and retreat so as to come into contact with the lower portions of the clamps 14 and 15 which have moved to the upper front in the band line direction of the band outlet 95, so that one of the primary clamped bands T Since the gap between the bonded portion and the band T between the primary and secondary clamps is open, the hot plate 139 can be easily inserted between the bands T, and the conventional band T can be attached to the band T. There is no adverse effect such as breakage of the hot plate d or poor adhesion due to the collision. Further, the hot plate 139 can be provided so as to be able to advance and retreat from either side of the band line L or the rear side in the band line L direction.
Also, since means for pressing the band T between the primary and secondary clamps against the hot plate 139 is provided, the band
The band T between the primary and secondary clamps can be melted by the hot plate 139 at the same time to form a bonded portion.

Further, since means for temporarily stopping the hot plate 139 at a position close to the band T between the primary and secondary clamps during the retreat is provided, the band T between the primary and secondary clamps is By pressing the lower part, the band T can be on standby at the melting and cutting position by the hot plate 139. Also, the band T between the primary and secondary clamps is attached to the lower portion of the hot plate 139 and both clamps 14 and 15.
Since the means for pressing to the lower part is provided, the molten bands T can be bonded by pressing and cooling, and the band T can be melt-cut by the hot plate 139. In addition, since cutting is not performed by a cutter as in the related art, the cut surface is not torn or pierced, and when carrying a poorly bound or bound packaged product W, there is no damage even if a hand or the like touches such a portion. .

Since the movable clamp 14 is disposed at the lower front part of the fixed clamp 15, in particular, the tip of the band T is turned downward from behind the fixed clamp 15 and introduced between the movable clamp 14 and the fixed clamp 15. Since the moving clamp 14 into which the band T is introduced can be positioned below the fixed clamp 15, the moving and fixed clamp 14,
It is easy to introduce the tip of the band T between the spaces 15.

Further, the fixed clamp 15 is fixed at the primary clamp position K.
, A band guide 54 having a concave surface for bending the tip of the band T introduced from behind the fixed clamp 15 upward between the clamps 14 and 15 is provided so as to be able to advance and retreat. By pressing against the concave surface of 54, the tip of the band T is bent upward, and the tip of the band T is turned downward from behind the fixed clamp 15 to be moved and introduced between the fixed clamps 14 and 15. Easy to do.

Further, the secondary clamping means is provided by a folding cam which is folded back between the primary clamp and the band T rewinding means on the linear cam 101 which can move back and forth in the band line direction, and slides on the band T. Since the band 96 is provided, the band T is wound around the package W by the primary clamping and rewinding of the band T, and the band T is tensioned.
The linear cam 101 can be moved by pressing the folded portion 96 without any driving means. Further, below the folded band T, a band pressing portion 107 which is pressed against the cam surface 112b of the linear motion cam 101 via the trochanter 104 is provided and positioned.
, The band T can be secondarily clamped behind the band outlet 95 in the band line direction only by the unwinding force of the band T.

Further, since the linear cam 101 is urged rearward in the band line direction by the elastic member 118, the tension of the band T can be increased, so that the clamping force of the secondary clamp against the band T can be increased, and the packing material W Can be further tightened, and the binding of the package W can be improved.

Further, a band introduction port is provided from the above-mentioned band outlet 95.
Since the band guiding arch 198 is bridged during the period 195, the band guiding arch 198 can be automatically guided to the band introducing port 195 from the band sending / outlet 95 along the loop of the band guiding arch 198.

Since the lower end of the band guide arch 198 on the side of the band introduction port 195 is directed backward in the band line direction of the fixed clamp 15 at the primary clamp position K, the band T is moved downward from the rear of the fixed clamp 15. It can be automatically turned around and introduced between the moving and fixed clamps 14,15.

Since the lower end of the band guiding arch 198 on the side of the band introduction port 195 is directed between the two clamps 14 and 15 at the primary clamp position K, the band T is moved from above and fixed between the fixed clamps 14 and 15. Its practical effect is extremely large, for example, it can be automatically introduced.

[Brief description of the drawings]

FIG. 1 is a plan view of a binding machine.

FIG. 2 is a front view of FIG.

FIG. 3 is a front view of the clamp unit.

FIG. 4 is a rear view of FIG. 3;

FIG. 5 is a plan view of FIG. 3;

FIG. 6 is an exploded perspective view of a drive mechanism.

FIG. 7 is a longitudinal sectional view of a main body showing a driving mechanism section.

FIG. 8 is a diagram showing a drive transmission mechanism.

FIG. 9 is a diagram illustrating a state before starting of a drive transmission mechanism at a primary clamp position.

FIG. 10 is a diagram showing the drive transmission mechanism when the movable clamp is raised at the primary clamp position.

FIG. 11 is a diagram showing a drive transmission mechanism when a movable clamp is joined to a fixed clamp at a primary clamp position.

FIG. 12 is a plan view of the main body at a primary clamping position.

FIG. 13 is a plan view of the main body showing a state where the movable clamp is raised at the primary clamp position.

FIG. 14 is a plan view of the main body showing a state where the movable clamp is joined to the fixed clamp at the primary clamp position.

FIG. 15 is a plan view of the main body showing a state where the movable and fixed clamps are positioned on the band line.

FIG. 16 is a plan view of the main body showing a state when the band is melted.

FIG. 17 is a plan view of the main body showing a state where the hot plate is temporarily stopped.

FIG. 18 is a diagram showing a binding mechanism when the band is rewound.

FIG. 19 is a diagram showing a binding mechanism unit when the band is melted.

FIG. 20 is a diagram illustrating a binding mechanism when the hot plate is temporarily stopped.

FIG. 21 is a diagram illustrating a binding mechanism unit when the band is pressurized and cooled and cut.

FIG. 22 is a diagram illustrating a binding mechanism when the band roller is rotated in the reverse direction.

FIG. 23 is a view showing a band tension mechanism and a heater operating body.

FIG. 24 is a view showing a band tension mechanism and a heater operating body when the band is melted.

FIG. 25 is a view showing a band tension mechanism and a heater operating body when the hot plate is temporarily stopped.

FIG. 26 is a diagram illustrating a band tension mechanism and a heater operating body when the band is pressurized and cooled and cut.

FIG. 27 is a diagram showing a band tension mechanism and a heater operating body when the band roller rotates in the reverse direction.

FIG. 28 is a view showing a modification of the primary clamp.

FIG. 29 is a view showing a band unwinding state of the binding machine equipped with the band guiding arch.

FIG. 30 is a diagram showing a conventional technique.

[Explanation of symbols]

 2 Placement part 14 Moving clamp 15 Fixed clamp 54 Band guide 95 Band outlet 96 Folding part 101 Linear cam 104 Roller 107 Band pressing part 112b Cam surface 118 Elastic member 121a Band pressure contact part 139 Hot plate 194 Band guide port 195 Band Inlet 198 Band guide arch K Primary clamp position L Band line T band W Package

Claims (9)

[Claims] 1. A movement which is disposed in the lower part of a mounting portion of a package at a primary clamping position which is located on a side of a band line and corresponding to an upper front part of a band outlet on the band line, and which is disposed forward in a band line direction. A clamp is provided so as to be able to freely contact and separate from a fixed clamp disposed behind the clamp, and both clamps are movably provided between a primary clamp position and a front upper portion of the band outlet on the band line. A means for secondary clamping of the band at the rear,
Also, a band guide opening is formed in the mounting portion in front of the band outlet in the band line direction corresponding to the band line, and a band is formed in the primary clamp position corresponding to the rear of the fixed clamp in the band line direction. An inlet is continuously formed, and a hot plate is provided so as to be able to advance and retreat so as to come into contact with the lower portions of both clamps which have been moved forward in the band line direction of the band outlet, and the band between the primary and secondary clamps is heated. A means is provided for pressing the hot plate, and
A means for temporarily stopping at a position close to the band between the next and secondary clamps is provided, and a means for pressing the band between the primary and secondary clamps to the lower portion of the hot plate and the lower portions of both clamps is provided. Binding machine. 2. A movement which is arranged in the lower part of the mounting portion of the package, on the side of the band line and at the primary clamp position corresponding to the upper front part of the band outlet on the band line, in front of the band line direction. A clamp is provided so as to be able to freely contact and separate from a fixed clamp disposed behind the clamp, and both clamps are movably provided between a primary clamp position and a front upper portion of the band outlet on the band line. A means for secondary clamping of the band at the rear,
In addition, in the above-mentioned mounting portion, a band guide opening formed in front of the band sending direction in the band line direction corresponding to the band line, and a band introduction opening formed in correspondence with both clamps at the primary clamp position. Are continuously formed, and a hot plate is provided so as to be able to advance and retreat so as to contact the lower portions of both clamps moved to the upper front in the band line direction of the band outlet, and the band between the primary and secondary clamps is pressed against the hot plate. Means for stopping the hot plate at a position close to the band between the primary and secondary clamps during the retreat, and the band between the primary and secondary clamps to the lower portion of the hot plate and both clamps. A binding machine characterized by comprising means for pressing down. 3. A movement disposed in a lower part of the mounting portion of the package, at a primary clamping position disposed on a side of the band line and corresponding to an upper front part of a band outlet on the band line, in front of the band line. A clamp is provided so as to be able to freely contact and separate from a fixed clamp disposed behind the clamp, and both clamps are movably provided between a primary clamp position and a front upper portion of the band outlet on the band line. A means for secondary clamping of the band at the rear,
Also, a band guide opening is formed in the mounting portion in front of the band sending port in the band line direction corresponding to the band line, and an opening is formed in the band line direction rearward between both clamps at the primary clamp position. A hot plate is provided so as to be able to advance and retreat so as to be in contact with the lower portions of both clamps which have been moved forward in the band line direction of the band outlet of the band and the band between the primary and secondary clamps. Means for pressing the hot plate against the hot plate, means for temporarily stopping the hot plate at a position close to the band between the primary and secondary clamps during the retreat, and the band T between the primary and secondary clamps are provided. A binding machine comprising means for pressing the lower part of the hot plate and the lower part of both clamps. 4. The binding machine according to claim 1, wherein the movable clamp is disposed at a lower front portion with respect to the fixed clamp. 5. A band guide having a concave surface for bending a leading end of a band introduced from behind the fixed clamp upward between the two clamps is provided below the fixed clamp at the primary clamp position so as to be able to advance and retreat. The binding machine according to claim 1, 3 or 4, wherein 6. The secondary clamping means is provided with a folded portion for folding a band between a primary clamp and a band rewinding means and slidingly contacting the band between the primary clamp and the band rewinding means on a linear motion cam movable back and forth in the band line direction. A band pressing portion to be pressed against the cam surface of the linear motion cam through the trochanter is provided below the folded band, and the band pressing portion is fixed on the band pressing portion via the band T. The binding machine according to claim 1, 2, 3, 4, or 5, wherein: 7. The binding machine according to claim 6, wherein the linear cam is urged rearward in the band line direction by an elastic member. 8. A band guide arch is extended between the band outlet and the band inlet, and the lower end of the band guide arch on the band inlet side is directed backward in the band line direction of the fixed clamp at the primary clamp position. The binding machine according to claim 1, 3, 4, 5, 6, or 7. 9. A band guide arch extending between the band outlet and the band inlet, and a lower end of the band guide arch on the band inlet side is directed between the two clamps at the primary clamp position. Claim 2,
The binding machine according to 3, 4, 6, or 7.