JP6244720B2 - Delivery device for bag making machine - Google Patents

Description

  The present invention relates to a process automation device used for delivery work of a bag making machine.

Conventionally, delivery devices for bag making machines have been as follows.
For example, bags separated and cut one by one in a bag making machine fall at the cutting position and overlap on the timing conveyor. Each time a bag falls, the conveyor is sent out at a constant pitch, so that the next bag is stacked with a constant pitch shift from the previous bag. When a certain number of sheets are stacked, the conveyor is sent out greatly, and the conveyor is sent out at a constant pitch every time a bag falls again. An operator grasps a certain number of stacked bags on the conveyor, performs alignment work, bundles a certain number of bags, and inspects quality of processing defects. Furthermore, the bundled bag is strapped and packed in cardboard.

  However, the above-described technique has the following problems. In other words, since each bag overlaps on the conveyor due to free fall after cutting, the drop position changes each time due to the influence of external factors such as static electricity and air-conditioning air blow, and the bags stacked by a certain number are mixed in front and back. Sometimes it happened. Since the number of sheets to be bundled is specified, the worker has to check whether there is an excess or deficiency for the specified number of sheets one by one.

  In addition, such work is simple and repeated, but it requires concentration, which is a considerable burden on the operator. Due to fatigue of the operator, problems such as missing of defects in quality inspection of defective processing, and packing of bundles with excess or deficiency for a specified number of sheets on cardboard have occurred.

  In addition, the delivery operation process is delayed due to various variations in bag thickness and shape, surface friction coefficient of the bag, etc., such as grasping and aligning bundles, quality inspection of defective processing, and confirmation of the number of bundles. Everything is done manually. For this reason, a lot of time was required for the work, and it was impossible to cope with the high speed due to the improved performance of the bag making machine, which was a bottleneck process.

  In addition, with the diversification of bag making designs, an increasing number of bags are punched into a predetermined shape one by one. In this case, the bag is discharged from the punching device in a state where the bag and the punched residue are connected to the outer peripheral edge punched by connecting portions (nicks) which are several non-cut portions. For this reason, a process of separating the bag and the waste from the delivery device is required.

As a delivery apparatus corresponding to the punching process, there is the following.
For example, the bag discharged from the punching device is sandwiched between a pair of upper and lower belts in a state where a part of the punch is turned, and the connecting portion (nick) at the time of punching is cut off by the conveying force of the belt. The bag separated from the unloaded residue is conveyed downstream in the flow direction by a pair of upper and lower belts and falls onto the timing conveyor.

  However, the above-described technique has the following problems. In other words, when the bag is sandwiched between a pair of upper and lower belts, the bag is conveyed straight to the belt due to the balance of the friction coefficient between the bag and the strength of the joint (nick) at the time of punching. Instead of turning, the belt may break or wrinkle between the upper and lower belts, or the bag may be clogged between the belts, causing problems such as machine stoppage including the bag making machine. It was.

Japanese Patent No. 2888150 JP-A-8-91675

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide an automated apparatus for a delivery operation process in a bag making machine. That is, the bags discharged from the punching mechanism of the bag making machine are separated one by one, inspected for quality defects, accumulated and aligned until a certain number of sheets are reached, and a certain number of bundles are bound. It is to provide a fully automatic delivery device for a bag making machine that can be boxed.

In order to achieve the above-mentioned problems, the present invention takes the following measures.
1st invention cuts the connection part of the product part formed at the time of stamping, and the non-product part, and separates into the bag for every sheet. A mechanism that performs injection in the width direction of the device by sandwiching it between a belt that rotates at high speed, a quality inspection mechanism that inspects bag processing defects, and route distribution of non-defective and defective bags. A flap mechanism, a stacking mechanism for stacking a certain number of bags while counting the number of bags, a conveyor mechanism for discharging defective products, a mechanism for strapping a bundle of stacked bags, and a bundle of straps A buffer rack for storing, and a mechanism for packing a bundle of hung bags, and the stacking mechanism is installed at an inclination to receive the injected good bags. And according to the number of stacked good quality bags It and a adjustable moving mechanism stack height is the delivery apparatus of the bag making machine according to claim.
According to a second aspect of the present invention, there is provided the delivery device for a bag making machine according to claim 1, wherein a plurality of the stacking mechanisms are provided, and the route distribution of the bags to the stacking sections is performed by a flap mechanism.

  According to the delivery device of the bag making machine of the present invention, the bag making machine can be operated at a high speed in order to continuously carry the bags one by one, and stack and pack a certain number of sheets. It was possible to increase the operating time for a long time. Furthermore, the length of the delivery device can be shortened by making the conveying direction when separating the bag and the punched residue the width direction of the device, and it has become possible to automate in a compact manner.

It is the schematic which looked at the delivery apparatus of the bag making machine in the embodiment of the present invention from the side. It is the schematic of the isolation | separation process which cut | disconnects the connection part of a product part and a non-product part in embodiment of this invention. It is the schematic of the sorting and accumulation | aggregation process of the quality goods and inferior goods of a bag in embodiment of this invention.

Hereinafter, the contents of the present invention will be described in detail.
The present invention contributes to automation of a delivery operation process in a bag making machine, and includes the following mechanisms (a) to (h).
(A) When cutting the connecting part between the product part and the non-product part formed at the time of punching, by pushing the bag part before cutting with a roll from above and sandwiching it between the belt rotating at high speed below (B) Bag quality inspection mechanism (c) Flap mechanism that distributes non-defective products and defective products (d) Stacking mechanism for collecting a certain number of bags while counting the number of bags (e) Conveying mechanism for discharging (f) Mechanism for strapping a bundle of bags (g) Buffer rack for storing a bundle of straps that are strapped (h) Mechanism for packing a bundle of straps that are strapped

According to the mechanism (a) of the present invention, the bag in which the connecting portion between the product portion and the non-product portion is not cut is pushed from above the bag by a roll having a mechanism that moves up and down, and fixed on the lower surface of the bag. It is sandwiched between a belt rotating at high speed and injected in the width direction of the device. Since the connecting portion at the time of punching is cut when being pushed from above the bag by the roll, there is no influence on the posture of the bag in a state of being sandwiched between the roll and the belt. In addition, since there is no place where the bag is caught or clogged in the transport path, problems such as folding, wrinkling, and clogging of the bag do not occur. Further, the mechanism for transporting the bag after cutting the connecting portion in the width direction of the apparatus can shorten the length of the delivery apparatus, and can easily replace the existing delivery apparatus.
By the way, if you try to inject only the product part bag in the width direction with the product part and the non-product part on the same plane, the non-product part punching clogging at both ends interferes with the bag, This is not preferable because there is a risk that the product will be disturbed, causing problems such as clogging of the bag in subsequent conveyance, and causing a defective product discharge. Accordingly, a belt is installed below the film conveying surface, and the bag and the scum are removed from the same plane by being pushed in by a roll from above, and then the bag is given a force to be peeled off in the width direction and injected. Such a mechanism is desirable.
According to the mechanism (b) of the present invention, the state of the bag can be imaged by an image camera, and a quality inspection can be performed to check whether there is an abnormality in the punching position with respect to the pattern of the bag or adhesion of foreign matter.
According to the mechanism (c) of the present invention, the path of the bag injected in the width direction of the apparatus is switched by the flap mechanism that distributes the non-defective product and the defective product. By sorting with a flap driven at high speed by a solenoid, it is possible to perform sorting even if the time interval for discharging the bag is shortened, corresponding to the speedup of the bag making machine.
According to the mechanism (d) of the present invention, non-defective bags are conveyed to a stacking mechanism that stacks a fixed number of sheets while counting the number of bags by a sensor. The fed bag is abutted against the receiving plate of the stacking mechanism and stops, forming a fixed number of bundles. When the number of sheets per bundle increases, it is desirable that the stacking mechanism be retracted according to the number of stacked bags so that the stacking height of the bags does not become higher than the position where the bags are sent out.
According to the mechanism (e) of the present invention, defective bags are dropped onto the discharge conveyor and discharged out of the apparatus after passing through the flap mechanism.
According to the mechanism (f) of the present invention, a certain number of bundled bags in the stacking mechanism are clamped by the transfer mechanism, moved to the banding stage, and banded in the clamped state. After the banding, it is transferred again to the buffer rack by the transfer mechanism.
According to the mechanism (g) of the present invention, the bundle after the banding can be held in the buffer rack. If necessary, it is desirable to have a mechanism for compressing a bundle of bags stacked in a certain number in order to keep the variation in bag thickness within a certain range.
According to the mechanism (h) of the present invention, the bag can be packed by grasping a bundle of bags from the buffer rack and inserting it into the packing box.

  Further, a plurality of the accumulation mechanisms may be provided. In this case, by using a delivery device that uses a flap mechanism to distribute the route of the bags to each stacking unit, more bags can be quickly collected, and the delivery work process can be further speeded up. Become.

  EXAMPLES Hereinafter, although this invention is demonstrated in detail based on an Example, this invention is not limited only to a following example.

Here, in the delivery device of the bag making machine provided with the punching mechanism, a process until the bag punched by the punching device is packed will be described in detail based on the drawings.
First, as shown in FIG. 1, in the punching device 1, the outer peripheral edge of the bag was punched by the punching blade 2. At this time, since a connecting portion (nick) which is a non-cut portion is provided at several locations on the outer peripheral edge, the bag can be transported together with the punched waste.

  Immediately after being discharged from the punching device, a quality inspection camera 3 is installed. Using this camera, a quality inspection was performed to check whether there was any abnormality in the punching position with respect to the pattern on the bag or adhesion of foreign matter.

  After the quality inspection, the separation of the bag and the waste residue was performed by the separation mechanism 4 for the bag and the waste residue. This mechanism is shown in FIG. Separation of the bag and the unloading bag is done by pressing the bag part from above with a roll having a mechanism that moves up and down and sandwiching it between a high-speed rotating belt fixedly installed on the lower surface of the bag, and at high speed in the width direction of the device. This is done by being injected. The bag separated by this mechanism could be ejected without swirling with respect to the transport direction and without causing folding, wrinkling or clogging.

  Bags injected in the width direction were accumulated only for non-defective products until a predetermined number of sheets were collected by the bag accumulation mechanism. This mechanism is shown in FIG. The product separated from the waste by the roll 13 and the discharge belt 12 is conveyed via the sorting flap 14 to the stacking mechanism 15 if it is a non-defective product and to the discharge conveyor 16 if it is a defective product. The sorting flap 14 is driven at high speed by a solenoid, and sorting is possible even when the time interval at which the bag is discharged becomes shorter. The bags determined as defective by the above-described quality inspection were distributed to the defective product conveyance path in the sorting flap 14 and dropped onto the discharge conveyor 16 to be discharged out of the apparatus.

  In the stacking mechanism 15, the bag is abutted against the receiving plate and stops, and a fixed number of bundles are formed. The number of bags was counted by detecting with a photoelectric sensor provided during conveyance after the sorting flap. The bag receiving plate was installed at an angle, and even if the bag size changed, it could be aligned and accumulated by its own weight.

  As shown in FIG. 1, the bundled bag in the stacking mechanism is clamped by the transfer mechanism 8 and transferred to the banding mechanism 7 while being clamped, and then the banding is performed. . After the banding, the sample was transferred to the buffer rack 9 by the transfer mechanism 8 as it was.

  In the buffer rack 9, the bundle of bags stacked in a certain number was compressed by a compression mechanism for holding the bundle after tying and keeping the variation in bag thickness within a certain range.

  The bundle of bags compressed by the buffer rack 9 was gripped by the boxing device 10 and inserted into the packing box 11.

  In this way, by using the delivery device of the bag making machine of the present invention, the process of separating the bags punched by the punching device one by one, accumulating and hanging only good products, and packaging in a box It was possible to do it fully automatically.

DESCRIPTION OF SYMBOLS 1 ... Punching device 2 ... Punching blade 3 ... Quality inspection camera 4 ... Separation mechanism 5 of bag and punching waste 5 ... Punching waste 6 ... Stacking mechanism 7 of bag ... Mechanism 8 ... Transfer mechanism 9 ... Buffer rack 10 ... Packing device 11 ... Packing box 12 ... Discharge belt 13 ... Roll 14 ... Distributing flap 15 ... Stacking mechanism 16 ... discharge conveyor

Claims (2)

In the delivery device of the bag making machine that can separate only the bag part that is the product part from the continuously conveyed sheet,
By pushing the product part before separation with a roll from above and sandwiching it between the belt rotating at high speed below, the joint part between the product part and the non-product part is cut and injected in the width direction of the device. A separation mechanism that separates the bags into sheets;
A quality inspection mechanism for inspecting processing defects of the bag;
A flap mechanism for distributing the route between the non-defective product and the defective product of the injected bag;
An accumulation mechanism for accumulating a certain number of sheets while counting the number of non-defective bags;
A conveyor mechanism for discharging the defective product;
A mechanism for strapping the bundle of accumulated bags;
A buffer rack for storing a bundle of the hung bags;
A mechanism for packing the bundle of bundled bags stored in the buffer rack;
Equipped with,
The stacking mechanism includes an inclined receiving plate for receiving the ejected non-defective bag, and a movable mechanism capable of adjusting a stacking height in accordance with the number of stacks of the non-defective bag. and delivery device of the bag making machine, characterized in that are.   The delivery device for a bag making machine according to claim 1, wherein a plurality of the stacking mechanisms are provided, and the route distribution of the bags to the respective stacking sections is performed by a flap mechanism.

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