JP2002211515A - Automatic binding machine of product accommodating bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic binding machine of a product accommodating bag capable of holding and carrying the bag to a binding position so that a mouth of the product accommodating bag is not swollen at the binding position. SOLUTION: In this automatic binding machine of the product accommodating bag, first and second mouth holding belt means 29 and 30 are arranged so that the distance is gradually increased toward the binding position 25a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a product storage bag automatic binding machine for transporting a product storage bag containing a product to a binding position and binding the mouth of the product storage bag with a binding tool.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 10, an automatic product storage bag binding machine for binding a mouth 1a of a product storage bag 1 in which a product is stored with a binding tool 2 has been considered.

In this automatic product storage bag binding machine, a binding device 3 for binding an opening 1a of a product storage bag 1 with a binding device 2 shown in FIG. 14 and a product storage bag 1 are conveyed toward the binding device 3. It has a product transport belt 4 and a mouth transport means 5 for nipping and transporting the mouth 1 a of the product storage bag 1 to a binding position by the binding device 3. In addition, as the clip (bundling tool) 2, a mouth holding hole 2 b and a mouth guide notch 2 are formed in a clip plate 2 a made of resin.
The one provided with c is used. In addition, the binding device 3 includes:
A known configuration is used.

The mouth conveying means 5 has first and second mouth holding / conveying belt means 6, 7 as shown in FIG. 10 (see FIG. 11). As shown in FIG. 11, the first mouth pinching / conveying belt means 6 comprises a pair of upper and lower belts 6a, 6b.
The second mouth holding and conveying belt means 7 includes a pair of upper and lower belts 7a and 7b. Further, at the mouth discharge positions A and B of the first and second mouth holding / conveying belt means 6 and 7, shaft-shaped mouth locking means 8 and 8 are provided so as to be able to protrude and retract by driving means (not shown). (See FIG. 12).

In such a configuration, after the mouth locking means 8, 8 is inserted into the mouth discharge positions A, B of the first and second mouth holding and conveying belt means 6, 7, the product is stored. The bag 1 is transported by the product transport belt 4 to the binding device 3 side.

Then, the mouth 1a of the product storage bag 1 is connected to the first and second mouth holding / conveying belt means 6, 7 of the mouth conveying means 5.
13A, the two portions of the mouth 1a are spaced apart from each other by the first
Between the belts 6a and 6b and between the belts 7a and 7b of the second mouth holding and conveying belt means 7.

In this state, the mouth 1a is moved to the binding position 9 as shown in FIG. Then, before the mouth 1a is discharged from the first and second mouth holding belt means 6, 7 as shown in FIG. 13 (b), the binding device 3 provides the first and second mouth holding belt means. A portion between the two portions sandwiched between 6 and 7 is bound with a clip (bundling tool) 2. At this time, the binding device 3 inserts the mouth 1a into the mouth holding hole 2a by pressing the clip 2 against the mouth 1a so that the mouth guide notch 2b engages with the mouth 1a. I am doing it.

[0008] Thereafter, the mouth locking means 8, 8 are moved to the first and second positions.
13 (c), the mouth 1a is retracted from the product discharge section of the mouth gripping / conveying belt means 6 and 7, and the mouth 1a is moved to the first and second positions as shown in FIG.
Are discharged from the mouth holding belt means 5, 6.

[0009]

By the way, the first and second mouth holding / conveying belt means 6 and 7 of the above-mentioned mouth conveying means 5 are provided in parallel to each other as shown in FIG. In some cases, the portions of the first and second opening sandwiching / conveying belt means 6 and 7 of the opening 1a may expand at the binding position 9 as shown in FIG.

On the other hand, when binding, the binding device 3 presses the clip 2 against the opening 1a so that the opening guide notch 2b engages with the opening 1a as described above. It is designed to be inserted into the part holding hole 2a.

For this reason, when the portions of the first and second mouth holding / conveying belt means 6 and 7 of the mouth 1a swell as shown in FIG. 12, the mouth guide notch 2b of the clip 2 is moved to the mouth 1a.
There is a problem that the mouth 1a is rubbed and damaged by the clip 2 when pressed against the opening a, and the mouth 1a does not enter the mouth guide notch 2b.

Accordingly, an object of the present invention is to provide an automatic product storage bag binding machine capable of holding and conveying the product storage bag to the binding position so that the mouth of the product storage bag does not expand at the binding position. .

[0013]

In order to achieve this object, according to the first aspect of the present invention, the mouth of a product storage bag in which a product is stored is transported to a binding position by a mouth transport means. An automatic product storage bag binding machine provided with binding means for binding a mouth with a binding tool, wherein the mouth transport means sandwiches two locations in the opening direction of the mouth with a pair of upper and lower belts, respectively. A first and a second opening pinching and conveying belt means for conveying the sheet to the binding position are provided, and the first and second opening pinching and conveying belt means are arranged so that the interval gradually increases toward the binding position. The product storage bag automatic binding machine that has been described.

In order to achieve the above-mentioned object, a second aspect of the present invention is to dispose a product storage means for transporting a product storage bag in which a product is stored in the product transport means in the transport direction. With a tying tool,
A first opening nipping and conveying belt means for nipping one location of the mouth of the product storage bag with a pair of upper and lower belts and transporting the product to a binding position by the binding device; A second opening nipping / conveying belt means for nipping the other part of the portion with a pair of upper and lower belts and transporting it to a binding position by the binding device, and a discharge position of the first and second opening nipping belt means. A mouth locking means provided so as to be able to protrude and retract, and a driving means for causing the mouth locking means to protrude and retract from a discharge position of the first and second mouth holding belt means; After inserting the mouth locking means into the discharge position of the first and second mouth holding belt means, the mouth is discharged to the discharge position by the first and second mouth holding belt means. And the mouth is locked by the mouth locking means, Wherein the serial port section locking means first, second
A product storage bag automatic tying machine having a control circuit for tying a portion between two places sandwiched between the nip portion and the mouth holding belt means with a tying tool by the tying device. The holding belt means is a product storage bag automatic binding machine which is arranged so that the interval gradually increases toward the discharge side.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. [Structure] In FIG. 1, reference numeral 10 denotes a product storage bag automatic binding machine (product storage bag opening part binding machine) according to the present invention. The product storage bag automatic binding machine 10, which is a product storage bag binding machine, binds a mouth 11a of a product storage bag 11 in which a product G such as bread or confectionery is stored as shown in FIG. Used to do. This clip 12
As shown in FIG. 7, the clip plate 1 made of resin
2a is provided with a mouth holding hole 12b and a mouth guide notch 12c. The mouth guide notch 12c is formed in a tapered shape so as to gradually increase from the mouth holding hole 12b toward the open end. 12d, 12d
The clip plate 1 is formed by forming the mouth guide notch 12c.
2 is a locking piece provided in FIG.

The automatic product storage bag binding machine 10 has a binding machine main body 13 and a product carrying device (product carrying means) 14 for carrying the product storage bag 11 toward the binding machine main body 13 side. <Product transport device 14> The product transport device 14 includes pulleys 16 and 17 arranged at intervals, a product transport belt 18 stretched over the pulleys 16 and 17, and a product transport belt 18
Has a number of product locking members (stoppers) 19 attached to the surface thereof at intervals in the longitudinal direction. The product transport device 14 includes a drive motor (belt drive unit) 20 provided on the pulley 16 side and an output shaft 2 of the drive motor 20.
0a and the pulley 1
6 and a timing belt 23 wrapped around the timing gears 21 and 22. <Bundling Machine Body (Bundling Means) 13> The bundling machine body 13 is attached to the main body case 24 disposed on the product discharge side of the product transport belt 18 and to the front of the main body case 24 on the product transport belt 18 side. Binding device 25 and body case 2
4, and has a mouth conveying means 26 for nipping and conveying the mouth 11a of the product storage bag 11 to a binding position 25a by the binding device 25. (Bundling Device 25) As shown in FIG. 2, the bundling device 25 is attached to the main body case 24 with the clip supply device 27 attached downward, and is attached to the main body case 24 below the clip supply device. Clip connecting device 2
8

The clip supply device 27 includes a clip 1
2 is pressed down to the binding position 25a and pressed against the opening 11a of the product storage bag 11, thereby the opening guide notch 12
After the mouth 11a is inserted into the mouth holding hole 12b at c, the locking pieces 12d of the clip 12 are overlapped with each other. Such a clip supply device 27
Since a well-known structure can be adopted, detailed description thereof will be omitted.

The clip connecting device 28 is provided with a pair of locking pieces 12d,
A dowel is formed by drawing in the overlapped portion of the 12d, and the locking pieces 12d are joined together. Since a well-known structure can be adopted for this configuration, detailed description thereof is omitted. (Mouth Conveying Means 26) The mouth conveying means 26 is juxtaposed in a direction intersecting (perpendicular to) the conveying direction of the product conveying belt 18 as shown in FIG.
and a first and a second opening-portion-conveying belt means 29 and 30 for pinching two portions in the opening direction of a and transporting them to the binding position.

The first mouth holding / conveying belt means 29 includes a pair of upper and lower belts (mouth holding / conveying belts) 29a, 29.
b, and the second mouth holding and conveying belt means 30 includes a pair of upper and lower belts (mouth holding and conveying belts) 30a and 30b.
It has.

The belt 29a is, as shown in FIG. 4, a pulley supporting frame 3 having a plurality of supporting plates 31a combined.
The belt 30a is disposed in a space 34 in a pulley support frame 33 in which a plurality of support plates 33a are combined as shown in FIG. The belt 29a is stretched over the pulleys 35P1 to 35P3 held by the pulley support frames 31, 31, and the belt 30a is stretched over the pulleys 36P1 to 36P3 held by the pulley support plates 33, 33 and 35, 35. I have. The belts 29b and 30b are also belts 29a and 29b.
The pulleys 35P1 'to 35P3' and the pulleys 36P1 'to 36P of the pulley support frames 31' and 33 '
P3 '.

In addition, the distance between the first and second mouth holding belt means 29, 30, ie, the belts 29a, 30a, is arranged so that the distance gradually increases toward the mouth discharge positions A, B. I have. The mouth discharge position A is the pulley support plate 31.
a, 31a (and 31a ', 31a'),
The mouth discharge position B is located at the pulley support plates 33a, 33a (and 3).
3a ', 33a'). (Mouth Locking Means 37) Further, the main body case 24 is provided with a mouth locking means 37 for locking the mouth 11a conveyed by the first and second mouth nipping conveyance belt means 29, 30. Have been. This mouth locking means 37 is provided in FIGS.
The mouth locking pin 38 extending downward as shown in FIG.
a, 38a, a solenoid (drive means) 39 disposed in the case body 24 and having an axis extending vertically as shown in FIG. 5, and an actuator for the solenoid 39 provided integrally with the stopper 38. It has an arm 40 attached to 39a. This arm 40
Penetrates a vertically extending slit 41 provided in the front wall 24a of the case body 24.

When the solenoid 39 is not energized, the stopper 38 is positioned at the position shown by the solid line in FIG. 5 and the position shown in FIG. 6A, and the mouth locking pins 38a, 38a are moved to the mouth discharge positions A, B. 4 as shown in FIG. When the solenoid 39 is energized and operated, it causes the actuator 39a to advance upward and the mouth locking pins 38a, 38a to retreat from the mouth discharging positions A, B, and the solenoid 39 is moved to the position shown in FIGS. The upper evacuation position 42 as shown in FIG.
It is designed to move up to

In place of the solenoid 39, a drive mechanism such as an air cylinder, a hydraulic cylinder, a link or gear drive mechanism driven by a motor, or a cam mechanism driven by a motor is provided. Thus, the same as the solenoid 39, the stopper 38 can be driven to move up and down. (Control Circuit) The binding machine body (binding means) 13 has an arithmetic control circuit (control circuit) 43 for controlling the drive of the drive motor 20 as shown in FIG. The pulleys 36P3 (35P2) and 36P3 '(35P
2 ') is synchronously driven by the drive motor 44 shown in FIG. The drive of the drive motor 44 is also controlled by the arithmetic control circuit 43. The operation of the clip supply device 27 and the clip connecting device 28 is also controlled by the arithmetic and control circuit 43.

Further, a contact type sensor MS such as a micro switch is provided between the lower portions of the belts 29a and 30a as detecting means for detecting the mouth 11a of the product storage bag 11. The detecting means may be of an optical type including a light emitting element and a light receiving element, or may have another configuration.
Moreover, the output of the sensor MS is input to the arithmetic control circuit 43. [Operation] Next, the product storage bag automatic binding machine 10 having such a configuration is described.
The operation of will be described.

The arithmetic control circuit 43 is provided with the drive motor 2 shown in FIG.
0, the rotation of the drive motor 20 is transmitted to the driving pulley 16 via the timing gears 21 and 22 and the timing belt 23, and the product transport belt 18 is continuously moved in the direction indicated by the arrow 45. Drive in rotation. In this state, the binding machine main body 1 is placed on the product transport belt 18.
The product storage bag 11 is supplied at the end opposite to 3. At this time, the mouth 11a of the product storage bag 11 is protruded from the side edge of the product transport belt 18 on the side where the binding machine main body 13 is provided. Further, the product storage bag 11 supplied on the product transport belt 18 is used as a product locking member (stopper) 1.
9 while being conveyed to the binding machine body 13 side.

Along with this conveyance, the belts 29a and 29b of the first mouth holding / conveying belt means 29 move the holding portion 1 on the opening end side of the mouth 11a of the product storage bag 11 at the position shown in FIG.
1a1 is pinched, and the pinching portion 11a1 is moved toward the mouth discharge position A at a speed higher than the transport speed of the product transport belt 18 (for example, three times faster than the transport speed of the product transport belt 18). Similarly, the second mouth portion holding and conveying belt means 3
The belts 30a and 30b of the product storage bag 11
1a, the holding portion 11a2 on the product G side is held, and the holding portion 11a2 is moved to the mouth discharge position B side at a speed higher than the conveying speed of the product conveying belt 18 (for example, a speed three times faster than the conveying speed of the product conveying belt 18). ) To move. In addition, the belts 29a and 29b of the first mouth holding and conveying belt means 29 and the belts 30a and 29b of the second mouth holding and conveying belt means 30 are used.
30b is driven synchronously. In this manner, by transporting the mouth 11a at a speed higher than the transport speed of the product transport belt 18, the mouth 11a and the product storage bag 11 are advanced in the transport direction with respect to the product locking member 19, and the product storage bag 11
Is separated from the product locking member 19 in the transport direction.

During the transportation of the mouth 11a, the locking pins 38a, 38a are inserted into the mouth discharge positions A, B. Moreover, the holding portions 11a1 and 11a2 of the mouth 11a
Is gradually discharged into the mouth discharge positions A and B from between the belts 29a and 29b and 30a and 30b, and
8a and 38a are gradually locked. In this manner, all of the holding portions 11a1 and 11a2 of the mouth 11a are
a, 29b and the mouth discharge position A from between 30a, 30b,
It is discharged into B and locked by the mouth locking pins 38a, 38a.

The belts 29a, 29b and 3
The distance between 0a and 30b gradually increases toward the binding position 25a, that is, toward the mouth discharge positions A and B. Therefore,
The distance between the holding portions 11a1 and 11a2 of the mouth 11 is
1a gradually widens toward the binding position 25a. As a result, as the mouth 11a is held by the first and second mouth holding / conveying belt means 29, 30 and conveyed toward the binding position 25a as described above, the holding portions 11a1, 11a2 of the mouth 11 are moved. Is gradually pulled between. Then, in this state, the holding portions 11a1 and 11a of the mouth 11a
2 is gradually discharged into the mouth discharge positions A and B from between the belts 29a and 29b and 30a and 30b, and is locked by the mouth locking pins 38a and 38a. By this locking, the mouth 1
1a is squeezed without slack as shown in FIG. 9 (b) in a state where the holding portions 11a1 and 11a2 are pulled.

In this way, all of the mouth 11a is discharged from between the belts 29a, 29b and 30a, 30b,
Time t until locked by mouth locking pins 38a, 38a
Are the mouth discharge positions A,
B and the belts 29a, 29b and 30a, 3
0b and the moving speed of the mouth 11a.

Thereafter, the arithmetic and control circuit 43 controls the operation of the clip supply device 27 so as to place the clip 12 at the binding position 2.
5a, and the notch 12 for guiding the mouth of the product storage bag 11
c is pressed against the mouth 11a of the product storage bag 11. As a result, the opening 11 a is formed by the action of the tapered opening guide notch 12 c of the clip 12.
2b. Thereafter, the arithmetic control circuit 43
Controls the operation of the clip supply device 27 so that the clip 1
The two locking pieces 12d are overlapped with each other.

The arithmetic control circuit 43 pushes up the clip connecting device 28 to the binding position 25a by a driving means such as a driving motor (not shown), and thereby a cam means (not shown) and a link means interlocked with the pushing-up driving force. The operation of a squeezing means (not shown) using a punch and a die of the clip connecting device 28 is controlled using interlocking means such as
A dowel is formed by a squeezing means at the overlapped portion of the 2d and 12d by the squeezing means, and the locking pieces 12d and 12d are connected to each other to bind the mouth 11a as shown in FIG. 9A.

Next, the arithmetic and control circuit 43 includes the solenoid 3
9, the actuator 39 is advanced upward, and the stopper 38 is moved to the upper retreat position 42, so that the locking pins 38a, 38a of the stopper 38 are moved from the mouth discharge positions A, B in FIG. Evacuate as in).

The clip supplying device 27 and the clip connecting device 28 are moved to the binding position 25a, and
The product locking member 19 catches up with the product storage bag 11 to lock the product storage bag 11 immediately before or immediately after the binding is completed or immediately after the binding, and the clip supply device 27 and the clip connecting device 28 Binding position 25a
And the stopper pins 38a, 38 of the stopper 38
8a is retracted from the mouth discharge positions A and B as shown in FIG. 9 (c). Such timings include the transport speed of the transport belt 18, the transport speed of the opening 11 a by the first and second opening sandwiching belt transporting means 29, 30, the operation time of the clip supply device 27 and the clip connecting device 28, and the stopper. The setting is made in consideration of the elevating operation control time 38 and the like.

In this way, the conveyor belt 18 is continuously driven without stopping, and the product storage bag 11
Can be continuously conveyed and the mouth 11a can be bound (squeezed and closed) by the clip 12. The product storage bag 11 having the mouth 11a bound by the clip 12 in this manner
Is transported by the transport belt 18 and discharged.

[0035]

As described above, the mouth conveying means sandwiches the two portions of the mouth in the opening direction by a pair of upper and lower belts, respectively, and transports them to the binding position. In addition to having the transport belt means, the first and second mouth holding transport belt means are arranged so that the interval gradually widens toward the binding position, so that the mouth of the product storage bag is The holding and conveyance can be performed to the binding position so as not to expand at the binding position.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of a product storage bag automatic binding machine according to the present invention.

FIG. 2 is a partial front view of FIG.

FIG. 3 is a schematic explanatory view of a mouth conveying means shown in FIG. 1;

FIG. 4 (a) is a plan view of the mouth conveying means of FIG. 1,
(B) is a front view of (a).

FIG. 5 is an explanatory view of a mouth locking means shown in FIG. 1;

6 (a) and 6 (b) are explanatory views of the operation of the stopper of the mouth locking means shown in FIGS. 1 and 5. FIG.

FIG. 7 is an explanatory diagram of the clip of FIG. 1;

FIG. 8 is a control circuit diagram of the automatic product storage bag binding machine shown in FIG. 1;

FIGS. 9 (a) to 9 (c) are views for explaining the operation of the mouth conveying means shown in FIG. 1;

FIG. 10 is a schematic perspective view of a conventional product storage bag automatic binding machine.

FIG. 11 is a schematic explanatory view of the mouth-portion conveying means shown in FIG.

FIG. 12 is a plan view of the mouth conveying means of FIG. 10;

13 (a) to 13 (c) are explanatory views of the operation of the mouth conveying means shown in FIG.

FIG. 14 is an explanatory diagram of the clip shown in FIG. 10;

[Description of Signs] G: Product 10: Automatic product storage bag binding machine 11: Product storage bag 11a: Mouth 12: Clip (bundling tool) 14: Product carrying device ( 25 ... Bundling device 25a ... Bundling position 26 ... Mouth conveying means 29 ... First mouth nipping and conveying belt means 29a, 29b ... Belt 30 ... Second Belt transporting belt means 30a, 30b ... Belt 37 ... Mouth locking means 39 ... Solenoid (driving means) 43 ... Calculation control circuit (control circuit)

Claims (2)

[Claims] 1. A product storage bag automatic binding machine provided with binding means for transporting a mouth of a product storage bag in which a product is stored to a binding position by a mouth transporting means and binding the mouth with a binding tool. Wherein the mouth conveying means comprises first and second mouth nipping and conveying belt means for nipping two places in the opening direction of the mouth with a pair of upper and lower belts and conveying the belt to the binding position, respectively. Wherein the first and second mouth-holding / conveying belt means are arranged so that the interval gradually increases toward the binding position. 2. A bundling means which is disposed in the direction of conveyance of a product carrying means for carrying a product storage bag in which a product is stored, and which binds a mouth of the product storage bag with a binding tool. A first mouth nipping / conveying belt means for nipping one location of the mouth of the product storage bag with a pair of upper and lower belts and transporting the product to a binding position by the binding device; And a second opening nipping / conveying belt means for nipping the above-mentioned position by a pair of upper and lower belts and conveying the same to a binding position by the binding device, and a reversible position at a discharge position of the first and second opening nipping belt means. A mouth locking means provided; and a driving means for causing the mouth locking means to protrude and retract from a discharge position of the first and second mouth holding belt means. Locking means for holding the first and second opening portions After being inserted into the discharge position of the tilting means, the mouth is discharged to the discharge position by the first and second mouth holding belt means, and the mouth is locked by the mouth locking means. Automatic product storage bag tying provided with a control circuit for tying a portion between two places sandwiched between the mouth locking means and the first and second mouth holding belt means with a tying tool by the tying device. An automatic product storage bag binding machine according to claim 1, wherein said first and second mouth holding belt means are arranged so that an interval gradually increases toward a discharge side.