JPS6239432A - Discharger for cutting chip of package in packaging machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) The present invention relates to a device for discharging cutting waste from packaged products in various packaging machines, and for example, a device for cutting a cylindrical film into a predetermined length. Then, the cut part is sealed to form a bag shape, the mouth of the packaging bag is expanded, the contents are put in there, the mouth is tied and the bag is discharged (e.g. (Refer to Japanese Patent Application Laid-open No. 174413/1983)
This invention relates to a device for discharging the cut edges of the bag opening which are cut after being tied.

(Prior art and problems to be solved by the invention) Conventionally, in this type of bagging and packaging machine, Japanese Patent Laid-Open No. 59-163
As described in Japanese Patent No. 109, after binding, the grip by the clamp member is released, and the packaging bag is allowed to fall and be discharged.

However, at the bag opening, an ear remains above the bundled portion, and if this ear becomes too large, it is necessary to cut the ear after binding and before discharging. After this cutting, the packaging bag falls and is ejected, and after this ejection, the cut edges of the bag opening that are released from the clamp member also fall, but a device is needed to efficiently and reliably eject the dropped cut edges. Ta.

Furthermore, when the grip of the bag opening is released, the cut ends of the bag usually fall, but there is a risk that the cut ends may remain attached to the clamp member and not fall, which may hinder the ejection of the cut ends. there were.

Furthermore, in addition to the TF bagging and packaging machine, various packaging machines generate various cutting debris, and a device for discharging and covering the debris is required.

Structure of the Invention (Means and Effects for Solving the Problems) The first invention is made to provide the same device, and as shown in the drawings of the embodiments described later, there is a discharge port into which cutting waste 62a of the packaged product 61 enters. 5
4, a discharge pipe 53 is provided for discharging the cutting waste 62a by a flow of air.

Then, the cut chips 62a of the packaged product 61 enter the discharge port 54, and the cut chips 62a are sent out to the discharge pipe 53 by the flow of air.

In addition to the first invention, the second invention is provided with an air outlet 51a that blows air toward the cut waste 62a of the packaged product 61 and sends the cut waste 62a to the discharge port 54. .

Even if the cut debris 62a of the packaged product 61 remains attached, air is blown out from the air outlet 51a toward the cut debris 62a, and the cut debris 62a is forcibly moved to the discharge port 54. sent to.

(Example) Hereinafter, an example in which the present invention is applied to discharge from the cut end of a bag opening of a bag filling and packaging machine will be described with reference to the drawings.

As shown in FIG. 1, the clamp member 1 is supported between a pair of parallel main chains 2, and as shown in FIG.
It is designed to reach above 0. In this clamp member 1, as shown in FIG.
A pair of movable clamping plates 5 each formed in a fork shape are supported rotatably and movably in the axial direction. Each movable clamping plate 5 extends downward from the inside of this support shaft 4.
The clamping arm 6 is adapted to come into contact with the inner clamping surface 3a of the fixed clamping plate 3. A cam roller 8 is supported by a slide shaft 9 on a movable arm 7 of each movable clamping plate 5 extending from the support shaft 4 to the outside of the fixed clamping plate 3, and the movable arm 7 of the movable clamping plate 5 extends along the support shaft 4. When moving, the cam roller 8 also moves along the slide shaft 9 together with the movable arm 7. Both ends of the slide shaft 9 are urged in the direction of arrow B by a spring 10, so that the clamping arm 6 of the movable clamping plate 5 and the clamping surface 3a of the fixed clamping plate 3 are always closed. The fixed clamping plate 3 and the movable clamping plate 5 constitute a gripping section. As shown in FIG. 1.3, the packaging bag 61 containing the contents is held at its mouth end between the clamping arm 6 of the movable clamping plate 5 and the clamping surface 3a of the fixed clamping plate 3. It is designed to be suspended.

In the conveyance device 11, as shown in FIG.
It is designed so that it can come into contact with one side of a. This main rotating belt 12 rotates in the same direction as the moving direction A of the clamp member 1 while in contact with the packaging bag 61, and its rotational speed is slower than the moving speed of the clamp member 1. Further, an auxiliary rotating belt 13 is provided opposite to the main rotating belt 12.
is arranged and rotates in the opposite direction to the main rotating belt 12 to guide the suspended packaging bag 61 between it and the main rotating belt 12.

A pair of upper and lower guide rods 14 are disposed above the main rotary belt 12, and an endless feed chain 15 is disposed above the auxiliary rotary belt 13, facing the guide rods 14. A guide passage 16 is formed between these guide rods 14 and the feed chain 15. Both guide rods 14 reach the binding cutting device 20, and the lower guide rod 14 is inclined downward as it goes toward the device 20.

A plurality of first feed pawls 17 are attached to the feed chain 15 at equal intervals, and when the opening 62 of the suspended IC packaging bag 61 moves through the guide passage 16, the opening 62 is moved in the moving direction. It is supposed to be pressed to A. Said feed chain 1
A second feed pawl 19 is supported on the lower surface of the sprocket 18 that is close to the binding cutting device 20 among the sprockets on which the sprocket 5 is hung so as to maintain a constant distance from the lower surface, and its tip 19a is extended from the outer periphery of the sprocket 18. It also protrudes slightly outward. When the sprocket 18 rotates as the feed chain 15 rotates,
Each first feed pawl 17 of the feed chain 15 and sprocket 1-
The distal end portion 19a of the second feed pawl 19 of 18 and the sprocket 18 of the feed chain 15 move in a state where they are opposed to each other at a constant interval in the vertical direction by an angular range. - The guide passage 1 of the conveyance device 11 is provided in the bundle cutting device 20.
A binding passage 21 is formed that continues linearly with the binding passage 21, and at the entrance 21a of this binding passage 21, the first feed pawl 17 and the second feed pawl 19 move from a separated state to approach each other and face each other. .

As for the pasting mechanism of the bundle cutting device 20, as shown in FIG. 4, a rotary member 22 having a plurality of recesses 23 on its outer periphery is rotatably attached to a shaft 24 on one side edge of the bundle passage 21.
On the other side edge of the binding passage 21, a holding member 25 is rotatably attached to a shaft 27, which is pressed against the outer periphery of the rotating member 22 by the force of a spring 26. Bundle cutting device 2
The distal end portion 28a of the tee 728 installed in the rotary member 22 is set to be held between the rotating member 22 and the holding member 25. Furthermore, a bifurcated cutting member 29 having a cutter 30 and an engaging protrusion 31 is rotatably attached to a shaft 32 on one side edge of the binding passage 21 on the far side. 30 retreats from the binding passage 21, and the engaging protrusion 31 blocks the binding passage 21.

A discharge port 34 is continuously formed at the end 21b of the binding passage 21 located below the engagement protrusion 31 of the cutting member 29, and an arc-shaped discharge port 34 is formed above the discharge port 34 continuously from the end 21b. The cutting passage 35 is formed to deviate from the moving direction A of the bag opening 62 to one side. This cutting path 3
A circular cutter 36 is supported on one side of the cutter 5 (near the extension line of the bundling passage 21), and a part of the cutting edge 36a on its outer periphery blocks the cutting passage 35 and sinks into the lower side edge 35a of the passage 35. There is. This circular cutter 36 is driven via a belt 37 and a pulley 38 as shown in FIG.

As shown in FIG. 3, a guide plate 39 rotatably supported by a support shaft 40 is provided above between the two main chains 2 and extends in the moving direction A of the clamp member 1. A connecting rod 44 is rotatably attached to shafts 45 and 46 between a bracket 41 fixed to the upper surface of the proximal end side of the bracket 41 and the distal end of a rotary arm 43 fixed to a drive shaft 42 above the bracket 41. When the rotary arm 43 pivots as the drive shaft 42 rotates, the guide plate 39 is moved around the support shaft 40 via the connecting rod 44 to the highest position shown in FIG. 3 and the lowest position shown in FIG. It is designed to tilt between.

Note that the guide plate 39 at the highest position is the clamp member 1
The guide plate 39 is inclined upward in the moving direction A, and the guide plate 39 at the lowest position is almost horizontal.

As shown in FIG. 3, the guide plate 39 has a presser member 47.
is movably supported, and this pressing member 47 is attached to the guide plate 3.
It consists of a chassis 48 having rollers 48a that move along the line 9 and a pair of presser plates 49 attached to the lower part of the chassis 48, and the presser plates 49 are arranged so that the distance between them increases as they move downward. ing. Also, the guide plate 39
A stopper 50 is fixed to the base end side of the stopper 50 so that its position can be adjusted,
As shown in FIG. 3, when the guide plate 39 is at the highest position, the chassis 48 of the presser member 47 comes into contact with the stopper 5o and is prevented from moving further towards the base end of the guide plate 39.

As shown in FIG. 1, an air blowing pipe 51 is attached to the holding plate 49 on one side of the vehicle chassis 48 of the holding member 47, and its air outlet 51a is inserted into both holding plates 49. An air supply hose 52 is connected to the blowout pipe 51 . Air is ejected diagonally downward from the air outlet 51a of the air blowing pipe 51 toward the space between the fixed clamping plates 3 of the clamp member 1.

As shown in FIG. 2, a discharge pipe 53 is disposed on the rear side of the bundle cutting device 20, and a discharge port 54 is opened on the upper surface closer to one side than the insertion of the circular cutter 36. An air jet pipe 55 is attached to one side of the discharge port 54, and an air supply hose 56 is connected to this air jet pipe 55. Air is supplied to the air outlet 5 of the air outlet pipe 55 as shown by the arrow.
The liquid is ejected from the outlet 5a toward the outlet 54.

Now, the packaging bag 61 suspended from the clamp member 1 is transferred toward the binding cutting device 20, and the housing portion 6 of the packaging bag 61 is
When one side of 1a comes into contact with the main rotating belt 12, the housing portion 61a is forcibly rotated in the direction of arrow P in FIG. , the opening 62 of the packaging bag 61 is twisted in the opposite direction of the P arrow. The other side of the housing portion 61a of the packaging bag 61 also comes into contact with the auxiliary rotating belt 13 that rotates in the opposite direction to the main rotating belt 12, thereby promoting the twisting. The first feed pawl 17 of the feed chain 15 supports the transport middle opening 62 of the packaging bag 61 and prevents it from swinging.
During this twisting process, it particularly functions to prevent shake.

Moreover, as the packaging bag 61 approaches the bundle cutting device 20,
The accommodating portion 6 of the packaging bag 61 is secured by the inclined lower guide rod 14.
The shoulder portion of 1a is pressed downward, and together with the above-mentioned twisting action, the stored items can be packed even more tightly.

On the other hand, as the clamp member 1 moves, the opening 6 of the packaging bag 61
2 enters the recess 23 of the rotating member 22 from the guide passage 16 of the conveying device 11 through the entrance 21a of the binding passage 21.
As shown in FIG. 4, the tip 28a of the tee 728 is bent along the recess 23 of the rotary member 22 so as to sandwich the mouth 62, and the mouth 62 is rotated by the rotation of the rotary member 22 as the mouth 62 moves. It is sandwiched and pasted. At this time, the mouth part 62
However, since the first feed pawl 17 and the second feed pawl 19 cooperate to push the mouth portion 62, the mouth portion 62 is supported by both feed pawls 17 and 19, and the zero portion 62 Runout is prevented. When the mouth part 62 further moves in this state and pushes the engagement protrusion 31 of the cutting member 29, the cutter 30 moves toward the binding path 21 against the bias of the spring 33, and the attached tape is removed. The tip 28a of 28 is cut as shown in FIG. During this cutting, the first and second feed claws 1
7.19 is about to leave the mouth part 62.

After this binding, the opening 62 of the packaging bag 61 is guided from the end 21b of the binding passage 21 to the cutting passage 35.

Since the passage 35 is formed in an arc shape deviating from the moving direction A of the bag opening 62, the bag opening 62 is cut on the upper side of the tape 28 by the cutting edge 36a of the circular cutter 36 while being held by the cutting edge 36a. Ru.

By this cutting, the packaging bag 61 (see FIG. 5) falls from the clamp member 1 and is discharged, and only the cut portion 62a (see FIG. 6) remains on the clamp member 1. The cutting edge 36a of the circular cutter 36 is located at one side edge 35a of the cutting passage 35.
Since it is recessed, the passage 35 is completely blocked and the bag opening 62 can be reliably brought into contact with the cutting edge 36a.

When the guide plate 39 is tilted downward from the highest position shown in FIG. 3 in synchronization with this binding and cutting, the presser member 47 is lowered with the tilting, and both sides are moved as shown by the imaginary line in FIG. The inner surface of the presser plate 49 serves as a movable clamping member 5 for the clamp member 1.
comes into contact with the cam roller 8. Due to this contact, the holding member 47 moves along the guide plate 39 as the clamp member 1 moves. During this time, the opening 62 of the packaging bag 61 reaches the binding/cutting device 20, where it is bound by the chi 728 and cut by the cutter 30 as described above.

Thereafter, when the guide plate 39 roughly tilts to the lowest position shown in FIG. It's crowded. Then, the movable arm 7 of the movable clamping plate 5 rotates in the direction of arrow B against the bias of the spring 10, and the clamping surface 3a of the fixed clamping plate 3 and the clamping arm 6 of the movable clamping plate 5 listen to each other.

In synchronization with this opening, as shown in FIGS. 6 and 7(a), air is ejected diagonally downward from the air outlet 51a of the air blowing pipe 51 and hits the inner surface of the cutting ear 62a of the bag opening 62. As shown in Fig. 2 and Fig. 7 (b), the same cutting 16
2a reliably falls into the discharge port 54 of the discharge pipe 53. In synchronization with this fall, air is ejected from the ejection port 55a of the air ejection pipe 55 to the discharge port 54, as shown in FIG.

Thereafter, when the guide plate 39 is tilted upward from the lowest position β shown in FIG. 49 is separated from the cam roller 8 of the movable clamping plate 5, and the movable arm 7 of the movable clamping plate 5 is moved to the spring 10.
The clamping surface 3a of the fixed clamping plate 3 and the clamping arm 6 of the movable clamping plate 5 are closed again. Further, as the guide plate 39 tilts upward, the presser member 47 moves toward the proximal end along the oblique guide plate 39, and comes into contact with the stopper 50 at the lowest position shown in FIG. In this state, the next clamp member 1 is moved below the holding member 47, and the packaging bag 61 and the cutting tab 62a are discharged in the same manner as described above.

In addition, regarding the discharge pipe 53, suction force may be used instead of air jetting from the air jetting pipe 55. Further, the air blowing pipe 51 does not necessarily need to be attached to the holding member 47, and may be attached to the clamp member 1, the machine frame, or the like.

Effects of the Invention In short, according to the first invention, since the flow of air is used to discharge the cutting waste 62a of the packaged product 61 from various packaging machines, the discharge can be carried out efficiently and reliably.

Further, according to the second invention, since the air jet is used to separate the cutting gap 62a of the packaged product 61, in addition to the effect of the first invention, the cut waste 62a can be reliably sent to the discharge port 54. can.

[Brief explanation of drawings]

FIG. 1 is a schematic front view showing a part of a bag filling and packaging machine equipped with a bag mouth cutting edge discharge device according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line X-X in FIG. 1. , Fig. 3 is a partial side view showing the grip release action of the packaging bag, Fig. 4 is a partial plan view showing the binding cutting device and the cut edge discharge device, and Fig. 5 is a partial perspective view showing the packaging bag cut after binding. Figures 6 and 7 (a),
(b). (C) is a partial side view and a partial front view showing the discharge action of the cutting ear. Clamp member 1, conveyance device 11, bundle cutting device 20, cutting passage 35, side edge 35a1 circular cutter 36, cutting edge 36
a, air blow-off pipe 51, blow-off port 51a, discharge pipe 53, discharge port 54, air blow-off pipe 55, blow-out port 55a, packaging bag (packaged product) 61, mouth portion 62, cutting ear (cutting waste) 62a.

Claims (1)

[Claims] 1. A discharge port (for receiving cutting waste (62a) of the packaged product (61));
54) A device for discharging cutting waste from a packaged product in a packaging machine, characterized in that it is equipped with a discharge pipe (53) for sending out the cutting waste (62a) from the cutting waste (62a) by a flow of air. 2. The discharge pipe (53) has an air jet port (55a) that jets air to its discharge port (54) to provide a flow of air inside the discharge pipe (53). A cutting waste discharge device for packaged products in the packaging machine described in . 3. Discharge port (
54), a discharge pipe (53) that sends out the cutting waste (62a) by air flow, and a discharge pipe (53) that sends out the cutting waste (62a) from the packaged product (61).
2a) and an air outlet (51a) for blowing out air toward the outlet (54) to send the cut debris (62a) to the outlet (54). .