JP2570145Y2 - Binding machine - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a synthetic resin bag (including a net bag) for storing bread, confectionery, processed food or agricultural products.
The present invention relates to a tying machine used to close the mouth of the tying.

[0002]

2. Description of the Related Art Japanese Patent Publication No. 63-62416 discloses bread,
In order to close the mouth of the bag containing the confectionery, etc., a flat PVC cord having a thin iron wire as a core is used, and a bag mouth binding machine for closing the mouth of the bag with the PVC cord is disclosed. ing. This binding machine is a binding device of a bag mouth provided with a folding claw that rotates by feeding a predetermined length of a flat binding wire in which a core wire such as a metal wire is embedded, cuts and hangs over the bag mouth, and scoops the binding strap end. , A driving source shaft is provided at a base end of the flat frame body formed of a pair of side walls having a front end formed with a bag opening guide groove, and the driving shaft is coaxial with the axis of the bag opening guide groove; The base end of an orthogonal main shaft that has an intermittent gear for string twisting with an arc cam arranged on one side, and an intermittent face gear for string twisting integrated with the intermittent gear, and has a folding claw at the tip end of the intermittent face gear for string twisting. And the cam for the cord winding arm is integrally attached to the back side of the drive source shaft.
At the intermittent rotation position of the cord winding arm cam, a driven rod facing the lower end is swingably provided, and the shaft of the driven rod is provided with a front-end retractable movable claw at the tip and a rear-moving press movable claw in the middle. The swinging arm is pivotally connected, the intermittent gear for feeding out the string is meshed with a transmission gear with a notched arc portion for stationary, and the arc for stationary is arranged so as to slide on the arc cam surface for opening the power supply. One of a pair of friction wheels is axially mounted coaxially.

As a tying tool for closing the mouth of a synthetic resin bag such as a polyvinyl chloride bag in a converged state, for example, US Pat. No. 3,021,354 discloses that a mouth of a bag is accommodated. There is disclosed a binding device provided with a slit for inserting a focused mouth portion of a bag into an opening to be formed, and provided with a barb or projection protruding from the periphery of the opening toward the center.

[0004]

[Problem to be solved by the present invention] Japanese Patent Publication No. 63-6241
Since the binding machine shown in No. 6 uses a metal wire as the core wire of the binding strap, there is a danger that the binding strap may injure the fingertip depending on the handling of the consumer who purchased the product in the bag. is there. Also, the binding power of the binding strap is not sufficient when the weight of the product in the bag increases.

The applicant of the present application has disclosed in Japanese Patent Application No. 4-264263 that the binding force at the time of initial use is large, the binding operation at the time of re-use is easy, and the re-use at the time of first use is also easy. A tying tool and a tying method for closing the mouth of the bag, which can maintain the tying force, have been proposed. This binding method is a flat plate made of an elastic material, a first opening provided in the center of the flat plate for receiving a binding object, and a second opening continuous with the first opening and extending to an outer peripheral edge of the flat plate. A step of assembling a tying tool having an opening and locking wings on both sides of the second opening to an object to be tied through the second opening, and tangling both side portions of the flat plate with the second opening as a boundary Thus, the diameter of the first opening is slightly reduced and the flat plate is narrowed to a substantially conical shape having the first opening as a vertex. And fixing by the following method. An object of the present invention is to provide an apparatus for performing the above-described binding method.

[0006]

SUMMARY OF THE INVENTION The present invention is directed to a flat plate made of an elastic material, the first opening being provided substantially at the center of the flat plate and containing the object to be bound, and a flat plate connected to the first opening. A binding device located at the front end of a binding device band formed by cascading a plurality of binding devices having a second opening extending to the outer peripheral edge of the second opening and locking wings provided on both ends of the second opening, In a binding machine that is sequentially fitted and locked to the outside of the bound mouth portion of the bag-like material, the binding device is sent to the front end of the binding device band feeding passage by being reciprocally driven in the binding device band feeding passage. A tying mechanism that is provided at a front end position of a slider assembly, a tying member feeding path, and is rotatable, and includes a rotatable crossing arm and a fixed pair of jigs. In a state where the zipper extends rearward of the zipper band feed passage and is stopped at an initial position at a predetermined rotation angle, The locking wing is inserted across the cross-arm through the second opening by the feeding operation of the slider assembly, and the tying tool is connected to the closed mouth of the bag-like object through the first opening. The jig is inserted into the outer part and is located close to and in front of the cross-arm. When the cross-arm is in the initial position, the jig is used in the rotation direction of the cross-arm. Positioned in front of the arm, when tying the tying device, the cross-arm is rotated from the initial position around the central axis of the tying device band feed path,
While one of the locking wings of the binding tool is in contact with one of the corresponding jigs, it is guided so as to be crossed and entangled with the other locking wing fixed and supported on the other of the jigs, and the binding tool is , The first
And a tying mechanism for narrowing the conical part into a substantially conical shape so as to protrude toward the mouth of the bag-like object with the opening as the top.

[0007]

According to the present invention, the slider assembly moves forward to feed the tying tool to the front end of the tying tool feed path. As a result, both the locking wings of the tying tool intersect and are inserted through the second opening into the crossing arm stopped at the initial position at the predetermined rotation angle. At this time, the binding device is fitted through the first opening into the outer portion of the bundled mouth of the bag. Then, the cross-arm is rotated, and one of the two locking wings of the tying tool is in contact with one of the corresponding jigs, while the other is fixed to the other of the jigs. It is guided to be hung and entangled. As a result, the tying tool is narrowed down to a substantially conical shape with both locking wings crossed and fixed so that the tying is convex toward the mouth of the bag-like object with the first opening as the apex.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Outline of a binding machine As shown in FIGS. 1 and 2, the binding machine of the present invention is a flat plate made of an elastic synthetic resin. A star-shaped opening (first opening) 21a to be accommodated, a second opening 21c that is continuous with the star-shaped opening 21a and extends to the outer peripheral edge of the flat plate, and engagement members provided on both ends of the second opening 21c. Binding device 2 having a stop blade 21d
The binding tools 21 located at the front end of the binding tool band formed by connecting a large number of pieces 1 in a cascade are sequentially fitted and locked to the outside of the bound mouth portion of the bag-like material.

The binding machine has a pentagonal binding machine body 1 having a trapezoidal side surface as a functional block, and a binding device attached to the rear end of the binding machine body 1 and gradually lowered toward the front. A magazine 1a, a trigger 2 pivotally supported by the binding machine main body 1, a slider assembly 3 extending from the rear to the front of the binding machine main body 1 so as to be lower in front, and coaxial with the slider assembly 3. A tie holder 4 fitted in the front of the slider assembly 3 and a claw 35 for controlling the slider assembly 3 and the tie holder 4 to be integrated or slidable with each other.
A binding device entanglement mechanism 5 provided at the front end of the binding device main body 1 and at the front end of the feeding path of the binding device band, and an electric motor 6 disposed at a lower portion of a rear portion of the binding device main body 1;
Reduction gear device 7 driven by the output shaft of electric motor 6
A main gear assembly 9 rotated by the output gear 8 of the reduction gear device 7 and having the intermittent gear 10, a power transmission mechanism B for linking the intermittent gear 10 of the main gear assembly 9 and the tying mechanism 5, The binding assembly feed claw / cutter assembly 43 provided at the tip of the slider assembly 3. Binding machine body 1
A bag opening cutting mechanism 12 is provided on the left side of the binding machine main body 1 and is detachable from the main body 1 and is linked to the intermittent gear 10. Hereinafter, each functional block will be described in detail.

The binding machine main body 1 has a plurality of fixtures 14 at the front end and the rear end of the lower surface 13. These fixtures 14 are installed on a horizontal worktable surface, for example. The binding machine may be installed vertically with the fixture 14 in contact with a vertical surface. In this case, the left side portion of the binding machine in the figure is located above, and the right side portion of the binding machine in FIG. 1 is located below.

In the vicinity of the front end of the binding machine main body 1, there is formed a collecting groove 15 which extends so as to be constricted downward from the upper end side of the binding machine main body 1 and collects the bag mouth. The lower end of the focusing groove 15
Extending forward from the central axis of the focusing groove 15, a rectangular detachment preventing portion 16 is formed. When the binding operator grips the synthetic resin bag containing the confectionery or the like with both hands and pushes it down from the upper end opening of the collecting groove 15 to the lower end, the bag opening moves to the slip-off preventing portion 16 due to the shape of the collecting groove 15. You will be guided. Even if the bag is subjected to an upward force at the time of cutting by the blade-shaped cutter 81 of the bag opening cutting mechanism 12, the bag opening is formed on the ceiling wall 1 of the slip-off preventing portion 16.
6a, it does not pass through the focusing groove 15 upward.

A power unit housing 17 for housing the electric motor 6 and the reduction gear unit 7 is provided at a rear part of the body 1 of the binding machine, and protrudes from the left side of the body 1 of the binding machine.

A ceiling wall portion 25 extends long from the rear end of the binding machine body 1 toward the front, and projects from the rear side of the binding machine body 1 to the left side of the binding machine body 1. And a binding device loading opening 26 extending on the center line of the binding device main body 1 and having an upper end opened. This loading passage 26
Has an inclined passage 27 at the front end thereof, which deviates to the right side surface of the binding machine main body 1. The inclined passage 27 is provided in the binding tool magazine 1a.
From the binding groove feed path portion extending from the lower end of the converging groove 15 through the slip-off preventing portion 16.

Between the focusing groove 15 and the power unit accommodating portion 17, on the right side surface of the binding machine main body 1 serving as a feeding passage of the binding tool, two pivots extending in the front-rear direction of the binding machine main body 1 (FIG. A door 19 that opens and closes vertically (not shown) is disposed. At an upper end of the door 19, a claw 18a that rotates around two shafts 18 protruding rightward is provided.
The door 19 is latched in a closed state by these claws 18a. On the inner surface of the door 19, a right-angled triangular check pawl 2 whose front end is perpendicular to the front-rear axis of the binding machine main body 1 is provided.
0 is arranged. The front end of the check claw 20 abuts on the rear end edge of the tying tool 21 located at the front end of the tying tool strip, thereby preventing the tying tool 21 from retreating.

The tying tool magazine 1a is a shallow dish shape, and is provided at a rear portion of the tying body 1 so as to protrude to the left side of the tying body 1.
It is detachably fixed to the binding machine body 1. The tying tool magazine 2 includes a circular reel mounting portion 23 for mounting a tying device reel 22 in which a tying device band is wound, and a reel mounting portion 23.
And a narrow width unwinding passage 24 extending from the rear end toward the rear end of the binding machine body 1. Unwinding passage 24
Is continuous with the loading opening 26 of the binding machine main body 1. The tying band is simply loaded into the tying magazine 1a by the loading method in a state where the rolled portion is loaded into the reel mounting portion 23 from above and the unwind portion is loaded into the unwinding passage 24 from above. can do.

Trigger The trigger 2 is provided on the left side of the binding machine body 1 with the door 1
At a position substantially opposite to the mounting position 9, it is disposed so as to be pivotable about the shaft 70 in the front and rear directions of the binding machine main body 1. Axis 70
, A torsion coil spring 71 is attached and urges the trigger 2 in the clockwise direction in FIG. Also, trigger 2
Waits at the position shown in FIG. 2 by a stopper (not shown) before binding the bag mouth.

At the front end (left end in FIG. 2) of the trigger 2,
A U-shaped upper bag mouth portion receiver 72 extending toward the right side of the binding machine body 1 is provided. Below the upper bag mouth receiving portion 72, the lower bag mouth receiving portion 73 is provided only on the left side of the binding machine main body 1 so as to cover the upper end opening of the focusing groove 15 from the left side of the binding machine main body 1. Is provided. Upper bag mouth receiving part 72
A substantially rectangular groove 74 is formed between the lower bag mouth portion receiver 73 and the lower bag mouth portion receiver 73. When the operator pushes down the trigger 2 to the lower end, the groove 74 is provided at the lower end of the focusing groove 15.
To form a rectangular opening completely surrounding the bag mouth. This enables the two wings 21d of the binding device 21 to be smoothly fitted to the outer portion of the bound bag opening.

On the other hand, a limit switch type trigger switch 75 is mounted on the side of the binding machine main body 1 below the pawl clutch 67 of the power transmission mechanism B. The trigger switch 75 starts an electric circuit (not shown) for rotating the electric motor 6 for one binding cycle. The lower end of the lower bag mouth receiving portion 73 of the trigger 2 causes the actuator of the trigger switch 75 to be actuated. 75a is closed by being depressed and starts the electric circuit.

Slider Assembly As shown in FIG. 3, the slider assembly 3 is disposed in a binding band feeding passage in the binding machine main body 1 and is reciprocated in the binding band feeding passage. Thereby, the binding device 21 is sent to the front end of the binding device band feeding passage. Slider assembly 3
Is a cross-shaped first slider 28 driven by the eccentric pin 11 functioning as a cam, and coaxial with the first slider 28, and a tying member band feeder to the first slider 28 via a compression coil spring 30. The second slider 29 has a straight bar shape and is movably mounted in the axial direction of the passage. The slider assembly 3 feeds the zipper band in a direction opposing the force of the compression coil spring 30.

The horizontal bar portion 28a of the first slider 28 has
A cam groove 28d having a substantially arc shape and having dead ends 28b and 28c at both ends is formed. This cam groove 28
An eccentric pin 11 is loosely fitted to d. First slider 28
Is formed in a yoke shape. The first slider 28 is provided on the eccentric pin 11 due to the rotation of the main gear assembly 9.
Reciprocate in the axial direction of the tying member band feed passage.

As shown in FIG. 5, the second slider 29 has a right side surface 29a whose cross section is concave in a V shape.
Cooperating with the inner surface of the door 19, the star-shaped opening 2
It is ensured that it is fed towards the focusing groove 15 in a square cross section centered on 1a. At the front end of the second slider 29, a pair of slider-side first
It has a locking portion 31 and has a pair of slider-side second locking portions 32 each having a forward facing shoulder surface at a position close to the slider-side first locking portion 31. The slider-side first locking portion 31 is a holder-side first locking portion provided with a forward-facing shoulder surface due to a difference in width, which is formed substantially at an intermediate portion between upper and lower inner surfaces of the binder holder 4.
It is disengaged from the locking portion 34. The slider-side second locking portion 32 includes:
It is formed as a notch with respect to the second slider 29,
In front of the second slider 29 in the axial direction, a pair of slopes 33 facing the slider-side second locking portion 32 is formed.
The slider-side second locking portion 32 is engaged with and disengaged from a pair of claws 35 pivotally disposed on the rear side of the binder holder 4.

A pair of slider-side third locking portions 36 each having a rearward-facing shoulder due to a difference in width are formed at a position slightly rearward from an intermediate point on the front-rear axis of the second slider 29. . The slider-side third locking portion 36 is connected to the first slider 28.
Is disengaged from the front end face 37.

In the feeding process of the tying tool, the second slider 29 moves the tying tool 21 located at the front end of the tying tool band through a tying tool and a cutter assembly 43 to be described later. Press to the front edge. The compression coil spring 30 is
When a load equal to or more than a predetermined load is applied to the slider 29, the slider 29 is charged so as to shorten the length of the slider assembly 3. This protects the load or the binding machine from damage.

Binding Tool Feeding Claw and Cutter Assembly As shown in FIGS. 3 and 4, the binding tool feeding claw and cutter assembly 43 is provided inside the binding tool holder 4.
From the front end of the second slider 29, it protrudes forward coaxially with the second slider 29, and is disposed so as to be pivotable about a shaft 43a.

At the front of the body 47 of the feed claw and cutter assembly 43, a pair of right and left feed claws 44 are disposed. The feed claw 44 is inserted into the star-shaped opening 21a of the tying tool 21 located at the front end of the tying tool strip, and engages with the periphery of the star-shaped opening 21a.

At a position slightly retracted from the front surface of the main body 47, a pair of blade-shaped cutters 45 are provided on the outer right and left sides of the position of the feed claw 44 by screws 46.
3 is fixed to the main body 47. As shown in FIG. 10, the cutter 45 has a slanted edge that recedes from the outside to the inside. The inclined front edge of the feed claw 44 is
It is located forward of the inclined edge of the cutter 45.

An inclined guide surface 48 is formed at the front end of the left side of the main body 47 of the feed claw and cutter assembly 43.
A contact surface 49 having a gentle slope opposite to the guide surface 48 is formed continuously with the rear end of the guide surface 48.

On the other hand, on the left side near the front end of the binder holder 4, a guide surface 48 of a main body 47 of the feed claw and cutter assembly 43 is provided.
In addition, a boss 50 that engages with and disengages from the contact surface 49 is provided. As shown in FIGS. 3 and 11, from the state where the slider assembly 3 and the binder holder 4 have been integrally advanced, the binder holder 4 is moved from the holder side first locking portion 38 to the main body. When the slider assembly 3 is further moved forward by the engagement with the second side locking portion 40, the guide surface 48 and the contact surface 49 of the feed claw / cutter assembly 43 sequentially contact the boss 5
0 and rotates the feed claw and cutter assembly 43 counterclockwise. Thereby, the pair of cutters 45 cuts the connecting portion 21b between the binding tool 21 at the front end of the binding tool band and the binding tool 21 at the next position.

At the front end on the right side of the main body 47 of the feed claw and cutter assembly 43, an inclined surface 51 is formed at the rear of the position where the cutter 45 is mounted, facing the rear right. Second
When the slider 29 is retracted, the inclined surface 51 is
Abutting on the holder-side second locking portion 52 and sliding, the feed claw / cutter assembly 43 rotates to the left, and the cutter 45 separates from the binding band.

Binding Tool Holder As shown in FIG. 3 and FIG.
Is a long member having a U-shaped cross section, and is slidably fitted to the front of the second slider 29. The right side surfaces of the upper and lower portions 4a and 4b of the binder holder 4
2 so that the first slider 2 can maintain a bent posture having a U-shaped cross section with the star-shaped opening 21a as a vertex.
9 is formed as an inclined surface that is continuous with the U-shaped depression on the right side surface.

The binder holder 4 is disposed movably in the axial direction of the feed path of the binder band with respect to the binder body 1. At the rear end of the tying member holder 4, a holder-side first locking portion 38 having a forward facing shoulder surface is provided. The holder-side first locking portion 38 includes a main body-side first locking portion 39 provided on the binding machine main body 1 and having a forward facing shoulder surface, and a main body-side first locking portion 39.
The second main body-side locking portion 40 formed forward of the locking portion 39 and having a rearward facing shoulder surface is engaged with and disengaged from the second body-side locking portion 40.

A pair of upper and lower horizontal holes 41 for accommodating a pair of claws 35 are formed in front of the holder-side first locking portion 38 in front of the holder-side first locking portion 38. A holder-side first locking portion 34 having a forward facing shoulder surface due to a difference in width is formed in front of the lateral hole 41. The holder-side third locking portion 42 is a slider-side first locking portion 31 of the second slider 29.
And disengage.

Claw 35 The claw 35 is disposed between the slider assembly 3 and the binder holder 4, and is a locking means for controlling the slider assembly 3 and the binder holder 4 to be integrated or slidable with each other. The outer surface of the claw 35 is in sliding contact with the inner side surface of the binding machine main body 1 so that the binding device 21 located at the front end of the binding device band is moved to another portion of the binding device band by the binding device feed / cutter assembly 43. Until the slider assembly is separated from the slider holder, the slider-side second locking portion 32 is engaged with the slider assembly 3 and the binder holder 4 to be locked together. The claw 35 is formed on the outer portion of the bound mouth portion of the bag-like material after the binding device 21 located at the front end of the binding device band is separated from the other portion of the binding device band by the binding device feed / cutter assembly 43. The slider assembly 3 is released from the binding holder 4 by retracting into the recess 40a formed in the inner surface of the binding machine main body 1 until the slider assembly 3 is fitted into the binding device holder 4. Thereby, the tying tool holder 4 is stopped from moving forward while holding the tying tool 21 located at the front end of the tying tool band in a bent posture. During this time, the pawl 35 allows the slider assembly 3 to move forward with the tying tool band feeding path together with the tying tool feeding and cutter assembly 43 and fit into the outside of the converged mouth portion of the bag-like material.

As shown in FIG. 14, the binding device entanglement mechanism 5 is provided in the binding machine main body 1 to prevent the lower end of the focusing groove 15 from coming off.
6 is provided at a position facing the binding device 21 at the front end of the binding device band.

The binding device entanglement mechanism 5 is a disk 5 made of synthetic resin.
3 and a crossing arm 54 projecting rearward from the disk 53
And a synthetic resin jig 55 fixed integrally with the binding machine body 1 and projecting rearward of the disk 53 in front of the rear end of the crossing arm 54, and integrally with the front surface of the disk 53. And a driven gear 56 provided.

As shown in FIG. 15, the crossing arm 54 has a substantially S-shaped rear shape, and has two posts extending forward from the upper and lower edges of the S-shape. Part 54d
Is implanted on the disk 53. Cross arm 54
Has a first arm 54a and a second arm 54b on both sides. As shown in FIG. 14, both side wings 21 d of the tying tool 21 at the front end of the tying tool band are attached to the second arm 54 of the slider assembly 3 with respect to the cross arm 54 that stops rotating at a fixed position and waits. By the advance of 29, the first and second arms 54a and 54b of the cross arm 54 are fitted to the cross arm 54 so as to be sandwiched from the left and right (or front and back) with the central portion 54c as a boundary.

As shown in FIG. 15, the jig 55 of the tying mechanism 5 has a back surface shape composed of an arc portion 58c and a chord portion 59a, and the arc portion 58 facing the chord portion 59a.
c is formed to protrude rearward at a part of the
The first claw 58 that covers substantially the entirety of the triangular opening 21c between the one wing 21d of the tying member 21 and the other wing 21d of the tying tool 21, and an arc through the arc-shaped opening 58a Part 58
c is formed so as to protrude rearward at a portion connected to the chord portion 59a, and includes a second claw portion 59 that receives the other wing portion 21d of the binding device 21 from the back side. Portions other than the first claw 58 and the second claw 59 are formed as a space 60.

As shown in FIG. 15, when the cross arm 54 is rotated counterclockwise, the first arm 54a and the second arm 54b become entangled with the two wings 21d of the binding device 21. The wings 21d are twisted counterclockwise in FIG. When the first arm portion 54a of the cross arm 54 passes the inner surface of the first claw portion 58 forward in the counterclockwise direction, the one wing portion 21d of the binding tool 21 entangled with the first arm portion 54a The other wing of the binding device 21 twisted counterclockwise by the second arm 54b and the second claw 59 while being twisted toward the opening 58a while being guided by the inner side surface 58b of the one claw 58. 21d is crossed when rotated by approximately 360 ° from the state of FIG.

FIGS. 17 and 18 show a modification of the tying mechanism. According to this modification, the central portion 54c of the cross arm 54 is supported by one post 54e. The arm 54 for hanging the cross is attached to both wings 21 d of the tying tool 21.
Is a cross-arm 5 through the second opening 21c of the binding tool 21.
As long as it is inserted so as to intersect with 4, it may be linear.

Electric motor The electric motor 6 is a normal DC motor.

Main Gear Assembly The main gear assembly 9 is substantially the same as that generally known, and is provided integrally with a main gear 9a having a gear formed on the entire circumference and on a side surface of the main gear 9a. An intermittent gear 10 having teeth 10a formed only in a predetermined range of the circumference, and a tooth 1 of the intermittent gear 10 provided integrally with a side surface of the intermittent gear 10.
Arc-shaped flange 1 corresponding to the portion where 0a is not formed
0b formed on the control plate 10c.

In the main gear assembly 9, the main gear 9 a is always meshed with the output gear 8 of the reduction gear unit 7, and is rotated counterclockwise in FIGS. 1 and 19 by the rotation of the output gear 8. The eccentric movement of the eccentric pin 11 provided at the eccentric position of the main gear assembly 9 causes the slider assembly 3 to slide back and forth in its axial direction.

On the circumference of the main gear assembly 9, the intermittent gear 1
A transmission gear 61 that can mesh with the No. 0 tooth 10a and transmits torque to the tying mechanism 5 and a transmission gear 62 that transmits torque to the bag opening cutting mechanism 12 are provided. The two transmission gears 61 and 62 have teeth formed on the entire periphery thereof so as to mesh with the teeth 10 a of the intermittent gear 10, and the control plate 1.
The arc-shaped notches 61a and 62a are formed so as to maintain the state of being stopped at a predetermined rotation angle position by engaging with the flange portion 10b of 0c. These notches 61a and 62a are provided between the transmission gears 61 and 62 and the intermittent gear 10.
Does not hinder the engagement with the teeth 10a.

When the main gear assembly 9 is rotated counterclockwise in FIGS. 1 and 19 by the output gear 8 of the reduction gear unit 7, the portion of the intermittent gear 10 without the teeth 10a firstly becomes the transmission gear 61. Therefore, the transmission gear 61 is not rotated. Moreover, since the flange portion 10b of the control plate 10c is engaged with the notch 61a of the transmission gear 61, the transmission gear 61 is stopped at the predetermined rotation angle position. Therefore, the binding device entanglement mechanism 5 is stopped at the predetermined rotation angle position. The main gear assembly 9 further rotates, the notch 61a and the flange 10c disengage, and the teeth 10a of the intermittent gear 10 mesh with the transmission gear 61. Thereby, the transmission gear 61 is
At the same time, the tying mechanism 5 is rotated from the predetermined rotation angle position. Also, in particular,
As can be understood from FIG. 17, the transmission gear 62 stopped at the predetermined rotation angle position also meshes with the teeth 10 a of the intermittent gear 10 at a timing slightly later than the transmission gear 61, and operates the bag mouth cutting mechanism 12. The number of teeth 10a of the intermittent gear 10 and the number of teeth of the transmission gears 61 and 62 are set to be the same. Therefore, when the main gear assembly 9 makes one rotation, the transmission gears 61 and 62 also make one rotation,
It always returns to each predetermined rotation angle position and is stopped.

In this way, the main gear assembly 9 pushes the trigger 2 after the binding operator pushes the trigger 2 by pushing down the mouth portion of the bag-like material to the falling-off preventing portion 16 at the lower end of the focusing groove 15.
The sequence and timing of the operations among the slider assembly 3, the binding holder 4, the binding binding mechanism 5, and the bag opening cutting mechanism 12 are determined.

Power transmission mechanism Power transmission mechanism B for operating the tying mechanism 5
A bevel gear 64 coaxially and integrally fixed to the transmission gear 61, a bevel gear 65 meshing with the bevel gear 64,
This bevel gear 65 is fixed to one end, and the other end is a tying mechanism 5
, A pawl clutch 67 attached to the front end of the torsion connection rod 66 as an overload prevention clutch, and coaxial with the torsion connection rod 66 and located forward of the claw clutch 67. And a driving gear 68 that meshes with the driven gear 56 of the tying mechanism 5. The claw clutch 67 has a known structure, and prevents an overload of the crossing arm 54 of the tying mechanism 5. The driving gear 68 transmits torque to the driven gear 56 of the tying mechanism 5 via an intermediate gear 68 a rotatably supported by the binding machine main body 1. In a process in which the binding device 21 is fitted into the outer portion of the bound mouth portion of the bag-like material and the two locking wings 21d of the binding device 21 are entangled, when a load equal to or more than a predetermined load is applied to the power transmission mechanism B, The pawl clutch 67 operates to cut off the power transmission relationship between the torsion connection rod 66 and the drive gear 68. This protects the load or the tying mechanism 5 from being damaged.

The main part of the bag opening mechanism 12 is arranged on the left side of the binding machine main body 1. The bag mouth cutting mechanism 12 is used for the binding machine body 1.
A sheath 76 fixed to the left side of the main body 1 with pins and screws and extending to near the rear end of the binding machine main body 1;
Transmission gear 62 meshing with the intermittent gear 10 and the binding machine body 1
, A crank 79 connected to the shaft 78 and disposed in the sheath 76, and a crank 7
9 and a connecting bar 80 extending forwardly along the sheath 76
Is provided at the end of the connecting bar 80 so as to be pivotable, and a sheath 76 is provided.
The guide (not shown) provided on the inner surface of the
6 and a blade-like cutter 81 which reciprocates back and forth in the inside. The cutter 81 reciprocates back and forth in the vicinity of the position facing the pull-out preventing portion 16 of the focusing groove 15 on the left side of the binding machine main body 1. The cutter 81 has a cutting edge formed so that the lower end protrudes forward from the upper end.

[Brief description of the drawings]

FIG. 1 is a right side view of the binding machine of the present invention.

FIG. 2 is a view in the direction of arrow 2-2 in FIG. 1;

FIG. 3 is a right side view showing an arrangement structure of a slider assembly, a binding device holder, and a feed claw / cutter assembly, showing a state immediately before the feeding of the binding device is started.

FIG. 4 is a plan view showing an arrangement structure of a slider assembly, a binder holder, and a feed claw / cutter assembly, and shows a state immediately before the feeding of the binder is started.

FIG. 5 is a sectional view taken along line 5-5 in FIG. 3;

FIG. 6 is a sectional view taken along line 6-6 in FIG. 3;

FIG. 7 is a front view showing an arrangement structure of a slider assembly, a binder holder and a feed claw / cutter assembly, and shows a state immediately before the feeding of the binder is started.

FIG. 8 is a plan view of the feed claw and cutter assembly.

FIG. 9 is a right side view of the feed claw and cutter assembly.

FIG. 10 is a front view of the feed claw and cutter assembly.

FIG. 11 is a right side view showing an arrangement structure of a slider assembly, a binding device holder, and a feed claw / cutter assembly, and shows a state in which the feeding of the binding device is completed.

FIG. 12 is a plan view showing an arrangement structure of a slider assembly, a binding device holder, and a feed claw / cutter assembly, showing a state in which the feeding of the binding device is completed.

FIG. 13 is a front view showing an arrangement structure of a slider assembly, a binding device holder, and a feed claw / cutter assembly, and shows a state in which the feeding of the binding device is completed.

FIG. 14 is a right side view of the tying mechanism.

FIG. 15 is a rear view of the tying mechanism.

FIG. 16 is a right side view of the tying mechanism and FIG.
Shows a state rotated 90 degrees from the state shown in FIG.

FIG. 17 is a right side view of a binding device entanglement mechanism according to a modification.

FIG. 18 is a rear view of a binding device entanglement mechanism according to a modified example.

FIG. 19 is a side view showing a meshing relationship between the main gear assembly and both transmission gears.

FIG. 20 is a plan view of the main gear assembly.

FIG. 21 is a side view of a power transmission system.

FIG. 22 is a plan view of a power transmission system.

FIG. 23 is a perspective view showing a state in which a binding device is fitted into the bag mouth and the bag mouth is bound.

[Explanation of symbols]

 Reference Signs List 3 slider assembly 5 binding device binding mechanism 6 electric motor 7 gear reduction device 21 binding device 21a first opening 21c second opening 21d locking wing 54 crossing arm 55 jig 58 first claw portion 59 second claw Part 60 Opening

Claims (1)

(57) [Scope of request for utility model registration] 1. A flat plate made of an elastic material, a first opening provided substantially at the center of the flat plate for receiving a binding object, and a second opening continuous with the first opening and extending to an outer peripheral edge of the flat plate. A plurality of tying tools having an opening and locking wings provided on both sides of the tip of the second opening are connected in series at a front end of a tying tool band formed by cascading a plurality of tying tools. A bundling machine that fits and locks into the outer portion of the mouth portion and that reciprocates in the bundling band feed passage to feed the bundling device to the front end of the bundling band feeding passage; A rotatable cross arm provided at the front end of the feed passage,
A binding device entanglement mechanism comprising a fixed pair of jigs, wherein the crossing arm extends behind the binding device band feed passage and is stopped at an initial position at a predetermined rotation angle. The locking wing is inserted across the cross-arm through the second opening by the feeding operation of the slider assembly, and the tying tool is connected to the closed mouth of the bag-like object through the first opening. The jig is inserted into the outer part and is located close to and in front of the cross-arm. When the cross-arm is in the initial position, the jig is used in the rotation direction of the cross-arm. The arm is located forward of the arm, and when the tying tool is entangled, the cross-linking arm is rotated from the initial position around the central axis of the tying tool band feed passage so that one of the two locking wings of the tying tool corresponds to the corresponding jig. While being in contact with one, it is guided crosswise and entangled with the other locking wing fixed and supported on the other side of the jig, So as to be convex toward the mouth of the bag-like objects with a first opening as the apex, the binding machine comprising a binder twine mechanism narrowing down substantially conical.