TWI608968B - Simultaneous clamping of printed multi-line bags to the same sealing position control method - Google Patents

Description

Synchronous clamping of printed multi-line bag material to the same sealing and cutting position control method

The invention relates to releasing the clip of the line bag material when a specific printing point on any line bag material is detected at the same position during the clamping and pulling process of the bag material printed on each line at the same time. Hold until the specific printing point on the last line of bags is also detected, and stop the drawing operation, so that the pattern positions of all the lines of the bags are aligned, which is beneficial to the subsequent sealing and bag making operations.

In the previous patent No. 418830, the bag of the folded book is punched into a vest bag, and the vest bag is folded and pinched to a conveyor belt, and then transported to the end by manual operation. The folded vest bag is put into a pre-made bag, and then the bag mouth of the bag is sealed by a small sealing machine to be boxed; although the vest bag is folded in advance, it is convenient for the operator to directly load the bag. Into the bag, it can avoid the trouble of folding the vest bag, but the bag must be pre-made separately, and the packaging operation is still using manpower, which affects the efficiency of work and manpower.

Therefore, it is the publication of the No. M437818 patent, which aims to improve the problem that the above-mentioned packaging bags must be pre-made and must be relied on by human packaging. The main purpose is to provide a bag-holding mechanism, a receiving mechanism, an ejection mechanism, and a ejector mechanism on a machine table. The film feeding mechanism, the film clamping mechanism and the sealing and cutting mechanism, wherein the bagging mechanism is configured to clamp the stacked plastic bags by using the clamps, and moves relative to the receiving mechanism to allow the plastic bags to be placed in the receiving mechanism for positioning. The ejector mechanism will be located The plastic bag on the connecting mechanism is topped out and folded in a folded shape, and the packaging film material is introduced through the film feeding mechanism and the stretching is located above the ejection mechanism, and then the packaging film material is clamped through the film clamping mechanism to be ejected. The outside of the plastic bag, and then the sealing and cutting mechanism clamps the packaging film material and the plastic bag to seal the film material up and down; thereby allowing the packaging process of the plastic bag to be consistently operated to achieve the purpose of automatic bag making and packaging operations.

However, whether it is the above automatic bag making and packaging machine or other bag making and packaging device, the bag material used for making the packaging bag is a blank bag material which is not printed with any pattern, and the jaw device is clamped and pulled. When the bag material is bagged, it is only necessary to set the length of the bag material to be pulled, even when the multi-line bag is set on the same machine at the same time.

However, if the manufacturer prints the same pattern or trademark on the bag for aesthetics or for the manufacturer, the length of the bag device to be pulled by the jaw device must be precisely controlled, and the position of the pin must also be per The same must be the same, in order to keep the pattern on each bag made at a fixed position, but the aforementioned machine or device does not provide the relevant control method to keep the bag material in a fixed position, more special When the multi-line bag material is simultaneously pulled and bagged on the same machine, how to make each line bag material synchronously pull to a consistent position, so that the pattern on each line bag material is kept in the bag making process. The same position and alignment technology does not occur such as offset, and no one provides related solutions.

At the same time, the patent of the device for bag-folding packaging according to the patent application No. 104217354, 104209787, or 103220186 previously filed by the inventor is only applicable to the bag material without the printed pattern, as long as it is transmitted through the respective set on the pinch unit. The group of jaws can synchronously seal and cut the bags of the bag materials after the belt bags are synchronously pulled to the sealing and cutting position of the predetermined bag length, but if the bag material is printed with the bag Long continuous interval of the same pattern At the same time, problems such as slippage, mechanical movement or error in the movement of the bag material may cause different accumulation errors of the wire bag materials when the bag materials are pulled on the pinching unit, resulting in the production of each line bag material. The position of the pattern on the bag can not be aligned. It is necessary to manually adjust the position of the bag to adjust it, which is not only inconsistent with the requirements of mechanical operation, but also difficult to achieve automatic control.

Furthermore, the inventor separates the sets of jaws on the pinch unit into separate devices for pulling each line of bag material, that is, each group of jaws is independently servo motor and cooperates to detect a specific printing point on the bag material. The electric eye of each line is conveyed separately by each bag, so that the bag materials can be pulled to the same sealing and cutting position, and the patterns on the line bags are aligned, so that the bag made by sealing and cutting is made. The quality can be exactly the same, but the movement of each set of jaws is controlled by independent control device and servo motor. That is, when a machine has four-line bag bags at the same time, there must be four parts. The servo motor and its control device not only make the structure of the machine more complicated, but also increase the cost of the control device by four times. For the manufacturer, the design and manufacturing troubles are increased, and for the user, High cost equipment and high maintenance costs.

The reason is that in order to solve the above-mentioned bag material pulling and forming the bag to be packaged, it is not only not available for the bag material that has been printed with the pattern, but also for the automatic alignment of the bag material of the multi-line existing printing pattern. Execution, or even through the independent pinch device of each line of bags, to overcome the purpose of pattern alignment, but the equipment is too expensive and so on, so the present invention is only through the same group of pinch units and control devices with multiple jaws When the pinch unit moves so that all the jaws simultaneously pull the bag material that has been printed with the pattern at the same time, during the pulling process of all the wire bag materials, if When a specific printing point in the pattern on any of the line bags is detected, the jaws holding the line of the bag are released and the pulling is stopped, but the pinch unit remains moved and the other line bags remain Continue to pull until the same specific printing point on the last line of bags is detected, and the pinch unit is stopped, and the grippers of all the lines are clamped again to perform the sealing and bag making operation. Therefore, based on the foregoing detecting the same specific printing point on each line of the bag material, the detected line bag material is stopped and pulled, so that all the line bag materials are pulled at the same sealing position. And make the patterns on each line of bags aligned.

The technical solution adopted by the present invention to solve the technical problem is that the clamping unit is moved by clamping the multi-line bag material which has been printed with the same pattern in the same pattern by the same clamping unit. At the same time, after pulling the bag materials to the same sealing and cutting position, the bag materials of all the wires are simultaneously sealed and cut into bags, and transferred to the work place for release, and the execution is repeated, and the pulling method for controlling the bag materials is: The stipulated specific printing points on the line bag pattern are aligned with the line detection points at the same position, so that the groups of jaws on the pinch unit hold the bag materials of the lines and move and pull, if any When a specific printing point on the pattern of any line of bags is detected, the line jaws are released and the clamping unit continues to move, so that the other line bags are continuously pulled until the last line. After the same specific printing point on the pattern on the bag material is detected, the pinch unit stops moving and the bag material of all the lines is clamped by the jaws, so that the bag material can be pulled. Each line of bag material is pulled to the phase At the sealing position, and so that each line pattern on the bag material consistent alignment.

Therefore, the movement of the pinch unit having the plurality of sets of jaws is driven by the same driving device of the present invention, and the detection of the same specific printing point on each line of the bag material is detected, and when any line bag material is detected At the specific printing point, the jaws at the corresponding position on the pinch unit are released. With the control method, all the bag materials can be clamped and pulled to the same sealing and cutting position, and the patterns on the finished bag can be aligned, so that the multi-line bag with the same pattern is printed. The material can be completed by the same pinch unit under the driving movement of a driving device, and the bag feeding is performed, and the clamping of each group of jaws is completed.

1‧‧‧ bag material opening unit

2‧‧‧ bag return unit

3‧‧‧Electric eye

4‧‧‧clamping unit

41‧‧‧claw

5‧‧‧Cut and cut unit

The invention will now be further described with reference to the drawings and embodiments.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic illustration of a multi-line bag feed device of the present invention.

2 is a flow chart showing the steps of the control method for multi-line bag material pull alignment according to the present invention.

Referring to FIG. 1 and FIG. 2, the present invention is a method for controlling the bag material feeding of a multi-line bag making and packaging device, wherein the device mainly comprises a bag for which multiple lines have been printed with consecutive patterns of the same pattern. The bag material opening unit 1 which is inserted into the bag and opens the bag mouth, and a bag material returning unit 2 which can hold the multi-line bag material at the same time on the front side of the bag material opening and closing unit 1 and is returned in the bag material At the same position on the front side of the unit 2, a plurality of electric eyes 3 corresponding to the respective line bags and capable of detecting a specific printing point on the pattern are provided, and at the same time on the rear side of the bag opening unit 1, there is a corresponding line thereon. The pinch unit 4 capable of holding the respective bag materials at the bag opening unit 1 and pulling the jaws 41 is further provided with a sealing and cutting unit 5 adjacent to the rear side of the bag opening unit 1 for the pinch unit 4 The bag material is clamped by the bag opening unit 1 and pulled back to the set bag length, and then the bag is sealed and cut by the sealing and cutting unit 5 to form a bag, and the cut bag is cut. Each line of bag material is then pulled back to the bag opening unit 1 by the bag material return unit 2, ready for the next time The bag is pulled and pulled, and the prepared bag is transferred to the destination through the pinch unit 4 to be released, and then the pinch unit 4 is returned to the original position, and then the clamping and pulling operation of the bag materials is performed. The work of performing bag making is repeated.

The method steps of the pull control of each of the above-mentioned line bags are as shown in FIG. 2, which is to first align the same specific printing points on the pattern of each line of bags to the printing point detection points of the same position ( That is, in the above-mentioned electric eye 3), after each of the jaws 41 on the pinch unit 4 simultaneously clamps the respective bag materials, the pinch unit 4 is moved to pull the bag material backward, and is kept moving, and in all the bag materials. During the synchronous pulling process, the specific printing points on the same pattern on the lower line of each line of the bag are continuously detected by the electric eye 3, and then the specific printing point on any line of the bag material is detected by the electric eye 3 When it is time, the clamping unit 41 of the wire bag is clamped on the pinching unit 4, the clamping is released to stop the pulling of the wire bag, and the pinching unit 4 continues to move, so that the other wires are The bag material remains gripped and pulled, and the execution is repeated until the specific printing point on the pattern of the last line of the bag material is detected, so that the pinch unit 4 stops moving and stops pulling the bag material. Send and let the bags of all the lines be clamped by the jaws 41, and then make all the lines The material is simultaneously sealed and cut into bags, and then the bag is transferred to the destination by the pinch unit 4 for other work processing and released, and then the pinch unit 4 is returned to the original position and then all is carried out. The clamping and pulling of the bag material of the line is repeated in a repeated manner.

In addition, when the pinching unit 4 continuously moves and pulls the wire bag materials while being clamped, the jaws 41 of any one of the wires are disposed to detect the clamping of the wire bag material when the clamping of the wire bag is released. Whether the clamping part is retracted from the bag material, if the bag material is not withdrawn, the pinching unit 4 is kept moving, but if the bag material is withdrawn, the pinching unit 4 stops moving and emits an audible or signal The warning role.

Therefore, in the process of clamping each of the wire bag materials from the respective jaws 41 on the above-mentioned pinch unit 4 and moving and pulling each of the wire bag materials, the electric eye 3 of each wire is kept at the same specific printing point on the bag pattern. Detecting, if any line of bag material is detected by the electric eye 3 of the line, the line clamps 41 release the clamping thereof, that is, the wire bag material has been pulled to the preset bag length and the predetermined sealing and cutting position to stop being pulled continuously until the electric eye 3 of the other lines is sequentially, or At the same time, when the same specific printing point on the corresponding bag material is detected, the bag material of all the lines is pulled to the same preset bag length and the same sealing and cutting position, that is, the line bag material is obtained. The upper patterns are aligned at the same position, and the bags made by sealing and cutting the various line materials can achieve the same purpose.

At the same time, the pinch unit 4 of the present invention can be driven by a single servo motor of the same mechanism, so that the jaws 41 holding the wire bag materials are mounted on the pinch unit 4 of the same moving mechanism, so that the pinch unit 4 is driven. By moving and pulling all the bags of the thread, and in accordance with the above control method of the present invention, it is possible to achieve the same sealing and cutting position of each line of the bag material, and to ensure the alignment of the drawings on the line of the bag materials, so that the device structure is not only the structure of the device It can simplify and reduce the cost of equipment.

Claims (1)

The utility model relates to a control method for synchronously feeding a printed multi-line bag material to the same sealing and cutting position, which is a pinching unit which is driven by the same servo motor and has an array of jaws thereon, and is clamped by each group of jaws at the same time. Sending the line bag materials with the same pattern in the same interval, and after the pinch unit moves to pull the line bag materials to the sealing and cutting position of the length of the same bag, the bag materials of all the lines are simultaneously sealed and bagged, and then The bag is transferred to the job for release, and the cycle is repeated. The control method for each group of jaws is: (1) stipulate the same specific printing point on each line bag pattern, and align Each line detection point at the same position; (2) each group of jaws on the pinch unit clamps the bag material of the corresponding line, and moves and pulls; (3) if there is any line bag material When a specific printing point on the next pattern is detected, the line jaws are released from the grip and the pulling of the bag material is stopped, but the pinch unit continues to move and the other line bags are kept continuous. Pull; (4) until the last line of the bag material After the specific printing point is detected, the pinch unit stops moving, and the bag material of all the lines is clamped by the jaws; thus, the method of (2)~(4) allows the bag materials to be pulled to When the same sealing position is used, the position of the pattern on each line of the bag can be aligned.