TWI781712B - Control method and device for forward and reverse stacking of bag head and tail - Google Patents

Abstract

A control method and device for stacking the front and rear sides of bags alternately. It is the corresponding part of the finished product pinching unit of a bag double-fold packaging machine. , lower swing positioning, and the time for the finished product guide slide to swing upwards to the positioning is earlier, so that the finished product pinch unit is used to pinch and move the finished bag, so that the tail of the finished bag is blocked by the swing end of the finished product guide slide, and the bag The head of the finished product is still moved forward on the finished guide chute until it is positioned and then released, that is, the head of the finished bag is facing forward and the tail is facing backward, and is slid forward and outward along the finished product guide chute And carry out the follow-up stacking operation, and make the finished product guide slide swing up to the time of positioning a little later, let the finished product pinch unit transfer the bag finished product to pass the swing end of the finished product guide slide completely, and the finished product guide slideway just swings up to Positioning, and then release the finished bag so that its tail is facing forward and its head is facing backward, and it is slid forward and outward along the finished guide slide for subsequent stacking operations. In this way, the interactive use can make the head of the finished bag The tails are forward and reverse stacked in a staggered manner.

Description

Control method and device for forward and reverse stacking of bag head and tail

The present invention relates to a control method and device for forward and reverse stacking of bag heads and tails, in particular, when the finished bag finished in half-folded packaging is transferred, through a finished product guide slide that is controlled to be tilted up earlier and later, so that The tail of the finished bag is blocked or passed by the finished guide chute, so that the tail of the finished bag can be slid and sent out on the guide chute in the direction of backward and forward, and the continuous interactive stacking of the front and back of the head and tail is carried out.

Regarding the applicant's new patent No. 103220186 "Device for Folding and Packing Bags in Half", its main structure is to fold the bag in half through a pair of folding transfer unit and transfer it to the desired packaging place. The bag mouth of the bag is kept open. The bag material on the opening unit is clamped and pulled out, sealed and cut into packaging bags, and then transferred to the desired packaging place, and then the bag that has been folded in half is pushed into the bag transfer unit. In the packaging bag clamped on the top, and then through a finished product pinch unit, the finished product clamped into the bag is sent to the sealing unit for sealing operation, and finally the finished product pinch unit transfers the finished packaged bag to the upper fixed inclined device Released on the guide chute, the finished bag slides along the guide chute to the destination for subsequent processing.

And in order to stack and bundle the aforementioned plurality of finished bags that have been packaged, the finished bags will also be conveyed to the applicant's No. 109136825 "Providing an automatic machine for bundling multiple stacks of plastic bags" Stack transfer device" invention patent office, into After the predetermined number of finished bags are stacked, the operation of bundling them together is carried out.

However, if each of the above-mentioned bags that are stacked one by one and folded in half is the finished bag 1 of the vest bag as shown in Figures 1 and 2, the folded end of the bag finished 1 after the whole stack is folded in half is The head 11 is the clamping place for the aforementioned finished product pinch unit, and the opposite end is the tail 12, because the middle of the bag opening 10 of the finished product 1 of the vest bag is cut off and becomes empty, resulting in The thickness D of the head portion 11 of the above-mentioned bag finished product 1 will be much thicker than the thickness d of the tail portion 12 of the bag finished product.

Therefore, if the head 11 and the tail 12 of each bag product 1 are stacked together in the same direction, one end shown in Figure 3 will be in a higher shape H, and the opposite end will be in a lower shape. As a result, when the finished bag products stacked together are bundled, binding ropes are prone to occur, and it is difficult to tightly bind the finished bag products 1 stacked together, and even the binding ropes may easily slip off.

The reason is that, in order to improve the aforementioned known applicant's "device for double-folding and packaging of bags", after completing the packaging of the double-folding bag, it is slid to the conveyor belt by its guide slide, and then delivered to the applicant's "providing multi-pack" by the conveyor belt. When stacking on the "automatic stacking transfer device" for bundling plastic bags, the head and tail of the finished bags are stacked in the same direction, resulting in problems such as difficulty in binding or even slipping of the finished bags after stacking. The present invention provides that the finished bag after being folded and packaged is pinched and sent to a finished product guide slide that can swing up and down, and the finished product guide slide is moved to the position earlier or later, so that the tail end of the finished bag is closed. The swing end of the finished product guide chute is blocked, so that the tail end of the finished bag turns in a backward direction and is released on the finished product guide chute to slide outward, and the tail end of the finished bag passes through the swing end of the finished product guide chute Then it rises to the positioning, and then releases the finished bag on the finished product guide slide, so that the tail end of the finished bag is slid forward in the forward direction, so that the interaction Use the finished bags that can be sent out by sliding to carry out the interactive stacking of the head and the tail.

The technical solution adopted by the present invention to solve the technical problem is: opposite to the finished product pinching unit for pinching and moving the finished bag product, a finished product guide slideway for receiving and releasing the finished bag product on it and sliding forward to the outside is provided. Make a swing end of the finished product guide slide to swing early to the position, let the tail of the pinched finished bag be blocked by the swing end, make the tail of the finished bag turn and be released in the finished product guide in a backward direction. Slide out on the slideway for stacking, and make the swing end of the finished product guide slide swing up to the position later, so that the tail of the finished bag is released on the finished guide slide after passing through the swing end, so that the tail of the finished bag Slide out in a forward direction to stack.

In the above scheme, a finished product pinching unit that pinches the finished bag product is opposite, and a finished product guide slideway that can accept and release the finished bag product on it and slide forward to the outside is provided to further guide the finished product to slide One end of the road, swing to the swing end of the positioning earlier or later in the preset transfer interval of the bag finished product.

Therefore, through the above-mentioned control of the present invention, swing upwards to the positioned finished guide slide early or later, so that the swing ends of the finished guide slide can be alternately released so that the tail of the finished bag is blocked by the swing end and folded back. On the finished product guide slide, make the tail of the finished bag slide outward in the direction of the rear, and release it on the finished guide slide after passing through the swing end, so that the tail of the finished bag slides outward in the forward direction, so that The finished bags can be stacked head-to-tail, forward and reverse.

1: Finished bag

11: head

12: Tail

2: Finished guide slide

20: swing end

3: Pneumatic cylinder

31: Drive end

4: Horizontal conveyor belt

5: Longitudinal conveyor belt

7: Finished product pinching unit

He: height

Figure 1 is a schematic diagram of general vest bags stacked together.

Figure 2 is a schematic diagram of a general vest bag folded in half.

Figure 3 is a schematic diagram of the stacking of a vest bag that is generally folded and packaged.

Fig. 4 is a schematic diagram of the structure of the present invention to convey the finished bag from head to tail in forward and reverse directions.

Fig. 5 is a schematic diagram on the way of the finished slideway of the present invention when it swings up later.

Fig. 6 is a schematic diagram of the finished slideway of the present invention after it has been swung upwards to its location.

Fig. 7 is a schematic diagram of the bag finished product of the present invention being released on the finished product guideway while its head is sliding outwards backwards.

Fig. 8 is a schematic diagram of the finished guide slideway of the present invention after it has been swung upwards and positioned in advance.

Fig. 9 is a schematic diagram of the finished bag of the present invention having its tail end blocked by the finished guide slide and facing backward during pinch delivery.

Fig. 10 is a schematic diagram of the bag finished product of the present invention being released on the finished product guide chute and its tail is outwardly sliding towards the rear.

Fig. 11 is a schematic diagram of the finished bag of the present invention after the head and the tail are staggered and stacked in reverse.

Please refer to Fig. 4, the present invention is a device for sending out the finished product 1 of the bag which has been folded and packaged in the forward and reverse directions from the head to the tail. One end of the guide slideway 2 is pivotally fixed, and the other end is a swing end 20 that can be positioned up and down. The telescopic driving end 31 is pivotally fixed with the back of the finished guide slide 2, and through the expansion and contraction of the driving end 31 of the pneumatic cylinder 3, the swing end 21 of the finished guide slide 2 is driven to perform the aforementioned upward and downward swing positioning , that is, through the finished product pinching unit 7 of the patent No. 103220186 "Device for Folding Bags in Half", the finished bag 1 is pinched and sent to the finished product guide slide 2 that swings upwards to the positioning, so that the finished bag 1 goes outward. slide.

In addition, a horizontal conveyor belt is set at the end of the pivotal end of the above-mentioned finished product guideway 2 4, and at the conveying end of the horizontal conveyor belt 4, a vertical conveyor belt 5 is then connected, and the vertical conveyor belt 5 is referred to in the patent No. 109136825 "providing automatic stacking transfer device for bundling of multiple stacks of plastic bags" Conveyor belt (element symbol 7), that is, through the longitudinal conveyor belt 5 of the present invention, the finished bag 1 to be stacked is sent into the "automatic stacking transfer device that provides bundling of multiple stacks of plastic bags" for continuous stacking Operation.

Furthermore, as shown in Figure 5, the finished product pinching unit 7 clamps the finished bag 1 folded in half, and when turning to pinch the finished bag 1 to the finished product guide chute 2, the finished product guide chute The swing end 20 of 2 swings up to the position later, so that the finished product 1 of the bag is in the process of being pinched, and its tail 12 first passes through the swing end 20 of the finished product guide chute 2 before the finished product guide chute 2 swings The end 20 continues to swing upwards to the set position.

At this time, as shown in Figure 6, the tail portion 12 of the finished bag 1 will be received by the finished product guide 2 first, so that the tail 12 of the finished bag 1 is facing forward, and then the finished product pinch unit 7 After the bag finished product 1 is released, as shown in Figure 7, the head 11 of the bag finished product 1 is facing backward and the tail 12 is facing forward, and slides forward along the inclined finished product guideway 2. On the horizontal conveyor belt 4, the finished bag 1 is transported to the vertical conveyor belt 5 by the horizontal conveyor belt 4, and the finished bag 1 is transported to the continuous stacking operation place by the vertical conveyor belt 5.

In addition, as shown in Figure 8, the finished product pinching unit 7 clamps the finished bag 1 folded and packaged, and when turning to want to pinch the finished bag 1 to the finished guide slide 2, the finished product guide 2 The swing end 20 swings upwards to the position in advance, so that the finished bag 1 is pinched, so that its tail 12 is first blocked by the swing end 20 of the finished guide slide 2 as shown in Figure 9, and the finished bag 1 is still When being pinched to the positioning position, the tail 2 of the finished bag 1 is folded back to face the rear, and then the pinching unit 7 of the finished bag is released as shown in Figure 10. After the finished bag 1 is released, its head 11 will be facing forward The direction falls on the finished product guide chute 2, and then the finished bag 1 will slide forward and outward along the inclined finished product guide 2 to the horizontal conveyor belt 4, and then the bag finished product 1 will be transported by the horizontal conveyor 4 Transport to the longitudinal conveyor belt 5, and the bag finished product 1 is transported to the continuous stacking operation place by the longitudinal conveyor belt 5.

Therefore, the operator only needs to set the finished product pinch unit 7, and alternately make the finished product guide slide 2 swing upwards to a later or earlier positioning time within the preset finished product pinch interval times, so that the bag can be finished 1 The tail 12 of the tail 12 alternately slides forward or backward; then directly slides into the continuous stacking operation, or transports to the continuous stacking operation through one or several conveyor belts, so that the stacked bags are finished products 1 As shown in Fig. 11, after the head 11 and the tail 12 of each bag finished product 1 are alternately stacked in forward and reverse directions, the height He of the two ends after stacking is made to be equal and consistent, so that the subsequent binding The operation can be carried out more smoothly, and at the same time, the finished bags 1 after stacking can be tightly bound together so that there is no doubt about slippage.

1: Finished bag

2: Finished guide slide

20: swing end

3: Pneumatic cylinder

31: Drive end

4: Horizontal conveyor belt

5: Longitudinal conveyor belt

7: Finished product pinching unit

Claims (2)

A control method for front and back stacking of the bag head and tail. It is a finished product pinching unit opposite to the finished product pinching unit for pinching and moving the finished bag. A guide slideway for the finished product that can accept and release the finished bag is provided to slide forward and outward, and The swing end at one end of the finished product guide slideway can be positioned to swing up and down. The control method is to make the finished product pinching unit interactively make the finished product bag in the interval of the preset number of times of continuous clamping of the finished product bag. The swing end of the guide slideway swings up until it is positioned later, so that the tail of the finished bag passes through the swing end before the finished product pinch unit is pinched to the position and the finished bag is released, so that the tail of the finished bag is Sliding out in the forward direction for subsequent stacking operations, and the swing end of the finished product guide slideway is swung to the position in advance, so that the finished bag is pinched by the finished product pinch unit, so that its tail is blocked by the swing end first Hold, while the finished product pinch unit continues to move the head to the position before releasing the finished bag, so that the tail of the finished bag is released on the finished guide slide in the backward direction and slides outward for subsequent stacking operations. A device for alternately stacking the head and the tail of the bag. It is opposite to the finished product pinching unit for pinching the finished bag. There is a finished guide slideway for receiving the finished bag and sliding it outward. Among them: Let one end of the finished product guide slideway be set as a swing end that can be used for up and down positioning swing, and make the swing end alternate between later and earlier upper swings to positioning in the preset intervals of bag finished product transfer. The action is to provide the finished product pinch unit to pinch the tail end of the finished bag through the swing end and slide forward along the finished guide slide, and the tail end of the finished bag is blocked by the swing end and turn backward along the finished guide slide slide.

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