Method of mounting a closure to a spout of a stand-up pouch

Abstract

A kind of installation method of sealing cover is installed to the installation method of spout of self-supporting bag, it is characterized by: sequentially comprising the following steps: (1) sequentially conveying sealing cover;(2) sequentially receiving multiple sealing covers and sending to multiple sealing cover linear arrangement area along linear distribution;(3) all sealing covers located on multiple sealing cover linear arrangement area are synchronously pushed to multiple sealing cover arc arrangement area along arc distribution;(4) all sealing covers located on multiple sealing cover arc arrangement area are synchronously grabbed and set to all spouts set on positioning rod of rotary disc type spout carrying device located in installation station;(5) all sealing covers set to spout located in installation station are respectively tightened.The beneficial effects of the present application compared with prior art are that work efficiency is greatly improved, and equipment is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to a method for installing a sealing cap on a spout of a stand-up pouch. BACKGROUND

[0002] Some stand-up pouches, due to the granular solid material, are difficult to fill through the spout, so the spout and the sealing cap are usually assembled into a stand-up pouch spout cap, and then the stand-up pouch spout cap is installed on the opening at the top of the packaging bag, and the bottom of the packaging bag is not sealed and has an opening for filling, so that the bottom of the stand-up pouch semi-finished product is filled through the opening at the bottom, and finally the opening at the bottom is sealed to obtain a stand-up pouch finished product.

[0003] The above-mentioned processing method, the stand-up pouch spout cap is a key component of the stand-up pouch, and its traditional processing method is to use different injection molding machines to obtain a large number of sealing caps and a large number of spouts, respectively, and then use a vibrating disc to send out and detect each of them, and collect the qualified products. Then use vehicles or other transportation tools to transport them to the assembly production line, then pour the spouts and sealing caps into different vibrating discs and then transport and detect them in sequence, then use a hanging tube method (use a vertical positioning rod to insert the spout from bottom to top) to hang the spout on each positioning rod located at the edge of the intermittent rotating turntable, then use a similar hanging cap method (use a spout sleeved on a vertical positioning rod to insert a sealing cap from bottom to top) to sleeve the sealing cap on each spout sleeved on the positioning rod located at the edge of the intermittent rotating turntable, and finally use a cap twisting device to tighten the sealing cap to obtain a stand-up pouch spout cap finished product, and then collect the qualified stand-up pouch spout cap finished product after detection.

[0004] However, the traditional processing method has the following disadvantages: 1. Since the existing method for sleeving the sealing cap on the spout has defects, both the sealing cap and the spout are prone to wear or damage during the process of being hung on each other (especially the internal and external threads that need to cooperate with each other), resulting in a high scrap rate of stand-up pouch spout caps; 2. The processing steps are too many and unreasonable, the manufacturing and assembly of the sealing cap and the spout are completed on different production lines, which occupies a large space, has a low work efficiency, and has a low energy utilization rate.

[0005] Therefore, it is necessary to improve the installation method for placing the sealing cap on the spout to avoid collision between the two during the placement process. However, if a general robot is used to imitate the human action of grabbing the sealing cap and placing it on the spout (referred to as the grabbing and placing action), this method not only has a low efficiency, but also has a high cost of equipment, so improvement is needed. SUMMARY

[0006] The purpose of this invention is to provide a method for installing sealing caps onto the nozzles of stand-up pouches. This method allows for the rapid installation and tightening of multiple sealing caps onto the nozzles. The technical solution adopted is as follows:

[0007] A method for installing a sealing cap onto the nozzle of a stand-up pouch, characterized by comprising the following steps in sequence:

[0008] (1) Sequentially deliver the sealing caps;

[0009] (2) Receive multiple sealing caps in sequence and deliver them to the linearly arranged area of ​​multiple sealing caps;

[0010] (3) Simultaneously push all the sealing caps located on the linear arrangement area of ​​the multi-sealing caps to the arc arrangement area of ​​the multi-sealing caps distributed along the arc;

[0011] (4) Simultaneously grab all the sealing caps located in the arc arrangement area of ​​the multi-sealing cap and put them on all the nozzles on the positioning rod of the rotary nozzle carrying device located at the installation station;

[0012] (5) Tighten all the sealing caps that are fitted onto the nozzles at the installation station.

[0013] A preferred embodiment is that the equipment used in the method includes a frame and a turntable-type nozzle carrying device mounted on the frame. The turntable-type nozzle carrying device has a turntable that rotates intermittently. Multiple positioning rods for positioning the nozzles of stand-up pouches are installed on the edge of the turntable. The frame is provided with a linear arrangement area for multiple sealing caps, an arc arrangement area for multiple sealing caps, and an installation station.

[0014] In a preferred embodiment, the arc arrangement area of ​​the multiple sealing caps is identical to the arc of the positioning rods formed by connecting all the positioning rods located at the installation position, and the arc arrangement area of ​​the multiple sealing caps and the arc of the positioning rods are parallel to each other.

[0015] In a preferred embodiment, the number of sealing caps in the linear arrangement area of ​​the multiple sealing caps, the number of sealing caps in the arc arrangement area of ​​the multiple sealing caps, and the number of positioning rods located at the installation position are all the same.

[0016] In a preferred embodiment, step (1) involves using a vibratory feeder to transport the sealing cap through a conveying channel.

[0017] A better solution is that, in step (1), the sealing cover is inspected during the conveying process, and if a defect is found, the sealing cover is rejected at the outlet of the conveying channel.

[0018] In a preferred embodiment, step (2) involves using a robotic arm to deliver the sealing cap to the area where multiple sealing caps are arranged in a straight line.

[0019] Preferably, the step (4) uses one or more mechanical arms to pick up the sealing caps, move the sealing caps to above the pipe mouths, and then put down the sealing caps and cover the corresponding pipe mouths.

[0020] The present application has the advantage over the prior art that the installation method of the sealing caps is improved, the sealing caps are first sent to the linear arrangement area, then sent to the arc arrangement area, then picked up and placed on the pipe mouths of the pipe mouth carrying device, and finally tightened, thus greatly improving the work efficiency and saving equipment. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a top view of the equipment used in an embodiment of the present application;

[0022] Figure 2 is Figure 1 a schematic view of the arc arrangement area of the sealing caps and the positioning rods at the installation station in the embodiment shown;

[0023] Figure 3 is Figure 1 a top view of the plurality of cap tightening devices and the positioning rods at the installation station in the embodiment shown;

[0024] Figure 4 is Figure 1 a schematic view of the mechanical arms and all cap tightening devices in the embodiment shown. DETAILED DESCRIPTION

[0025] As Figures 1-4 shown, the installation method of the sealing caps on the stand-up pouch pipe mouths in an embodiment of the present application comprises the following steps in sequence:

[0026] (1) sequentially conveying the sealing caps;

[0027] (2) sequentially receiving the plurality of sealing caps and sending them to the linear arrangement area of the sealing caps;

[0028] (3) synchronously pushing all the sealing caps on the linear arrangement area of the sealing caps to the arc arrangement area of the sealing caps;

[0029] (4) synchronously picking up all the sealing caps on the arc arrangement area of the sealing caps and covering them on all the pipe mouths of the pipe mouth carrying device at the installation station;

[0030] (5) respectively tightening all the sealing caps on the pipe mouths at the installation station.

[0031] AsFigure 1 As shown in the figure, in an alternative embodiment of the present application, the equipment used in the method comprises a rack 1, a rotary nozzle carrying device 2 mounted on the rack 1, the rotary nozzle carrying device 2 having a rotary disc 201 that rotates intermittently, a plurality of positioning rods 202 for positioning the stand-up bag nozzles being mounted on the edge of the rotary disc 201, and a plurality of sealing cover linear arrangement areas A, a plurality of sealing cover arc arrangement areas B, and a mounting station C being provided on the rack 1.

[0032] As shown in the figure, in an alternative embodiment of the present application, the sealing cover arc arrangement areas B are the same as the positioning rod arc formed by all the positioning rods 202 located at the mounting station C, and the sealing cover arc arrangement areas B and the positioning rod arc are parallel to each other. Figures 1-3

[0033] The number of sealing covers in the sealing cover linear arrangement areas A, the number of sealing covers in the sealing cover arc arrangement areas B, and the number of positioning rods 202 located at the mounting station C are the same.

[0034] As shown in the figure, in an alternative embodiment of the present application, the number of sealing covers in the sealing cover linear arrangement areas A, the number of sealing covers in the sealing cover arc arrangement areas B, and the number of positioning rods 202 located at the mounting station C are all four. Figure 2

[0035] As shown in the figure, in an alternative embodiment of the present application, a vibrating disc 3 is used to convey the sealing covers through a conveying channel 4 in step (1). This not only saves the cost of equipment, but also effectively reduces the noise. Figure 1 In an alternative embodiment of the present application, the sealing covers are detected during the conveying of the sealing covers in step (1), and if a sealing cover is found to have defects, the sealing cover is excluded at the outlet of the conveying channel.

[0036] In an alternative embodiment of the present application, a mechanical hand is used to send the sealing covers to the sealing cover linear arrangement areas A in step (2).

[0037] In an alternative embodiment of the present application, a cylinder is used to sequentially push the sealing covers through the horizontal extension of the flat plate top surface to the sealing cover linear arrangement areas A in step (2). In other alternative embodiments, an electric cylinder or a mechanical mechanism composed of a servo motor, a screw rod, and a nut can be used to replace the cylinder to complete the pushing work of the sealing covers.

[0038] As shown in the figure, in an alternative embodiment of the present application, a mechanical hand 5 is used to grab the sealing covers in step (4), drive the sealing covers to move above the suction nozzles after being lifted, and then put down the sealing covers and cover the corresponding suction nozzles.

[0039] Figures 1-4 As shown in the figure, in an alternative embodiment of the present application, a mechanical hand 5 is used to grab the sealing covers in step (4), drive the sealing covers to move above the suction nozzles after being lifted, and then put down the sealing covers and cover the corresponding suction nozzles.​​​

[0040] In an alternative embodiment of the present application, the step (4) uses a plurality of mechanical arms to pick up the sealing caps, drive the sealing caps to rise and move above the suction nozzles, and then drop the sealing caps and fit them onto the corresponding suction nozzles.

[0041] As shown in Figures 1-4 FIG. 5, in an alternative embodiment of the present application, the step (5) uses a plurality of cap screwing devices 6 installed at the ends of the mechanical arms 5 to complete the work of screwing the sealing caps. In this embodiment, the number of the cap screwing devices 6 is four.

[0042] As shown in Figures 1-4 FIG. 5, in an alternative embodiment of the present application, the cap picking work and the cap dropping work of the step (4) and the cap screwing work of the step (5) are all completed by the same cap screwing device 6. That is, the four cap screwing devices 6 on the mechanical arms 5 complete the cap picking work, the cap dropping work, and the cap screwing work in sequence.

[0043] As shown in Figure 4 FIG. 6, in an alternative embodiment of the present application, the cap screwing device 6 includes a rotating member 601, a three-jaw cylinder 602, and three cap clamping friction wheels 603. The rotating member 601 is installed on the mechanical arm 5, and has a rotating end at the bottom. The three-jaw cylinder 602 is installed on the rotating end, and the three cap clamping friction wheels 603 are respectively installed on the three clamping jaws of the three-jaw cylinder 602.

[0044] As shown in Figure 4 FIG. 6, in an alternative embodiment of the present application, the rotating member 601 is a servo motor, and the rotating end is the output shaft of the servo motor.

[0045] The above-mentioned embodiments of the present application improve the installation method of the sealing caps. The plurality of sealing caps are first sent to the linear arrangement area of the sealing caps arranged along a straight line, and then sent to the arc arrangement area of the sealing caps arranged along an arc. The sealing caps are simultaneously picked up and dropped onto the suction nozzles of the pipe nozzle carrying device arranged on the positioning rods in the installation station. Finally, the sealing caps are screwed. The cap picking work, the cap dropping work, and the cap screwing work are all completed by the cap screwing device 6. Therefore, the production steps are optimized, the work efficiency is greatly improved, the equipment is saved, and the producer can select the commonly used equipment on the market to complete the work of each step according to the needs.

[0046] In addition, it should be noted that the specific embodiments described in the specification, each part of the name, etc. can be different, and any equivalent or simple change made in accordance with the structure, features and principles described in the patent concept of the present application are included in the protection scope of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, as long as they do not deviate from the structure of the present application or exceed the scope defined in the claims, which shall belong to the protection scope of the present application.

Claims

1. A method for installing a sealing cap onto the nozzle of a stand-up pouch, characterized in that: The steps are as follows: (1) Sequentially deliver the sealing caps; (2) Receive multiple sealing caps in sequence and deliver them to the linearly arranged area of ​​multiple sealing caps; (3) Simultaneously push all the sealing caps located on the linear arrangement area of ​​the multi-sealing caps to the arc arrangement area of ​​the multi-sealing caps distributed along the arc; (4) Simultaneously grab all the sealing caps located in the arc arrangement area of ​​the multi-sealing cap and put them on all the nozzles on the positioning rod of the rotary nozzle carrying device located at the installation station; (5) Tighten all the sealing caps that are fitted onto the nozzles at the installation station; The equipment used in the method includes a frame and a turntable nozzle carrying device mounted on the frame. The turntable nozzle carrying device has a turntable that rotates intermittently. Multiple positioning rods for positioning the nozzles of stand-up pouches are installed on the edge of the turntable. The frame is provided with a linear arrangement area for multiple sealing caps, an arc arrangement area for multiple sealing caps, and an installation station. The arc arrangement area of ​​the multi-seal cover is the same as the positioning rod arc formed by all the positioning rods located at the installation position, and the arc arrangement area of ​​the multi-seal cover and the positioning rod arc are parallel to each other.

2. The installation method of installing the sealing cap onto the nozzle of a stand-up pouch as described in claim 1, characterized in that: The number of sealing caps in the linear arrangement area, the number of sealing caps in the arc arrangement area, and the number of positioning rods located at the installation position are all the same.

3. The installation method of installing the sealing cap onto the nozzle of a stand-up pouch as described in claim 1, characterized in that: In step (1), a vibratory plate is used to transport the sealing cap through a conveying channel.

4. The installation method of installing the sealing cap onto the nozzle of a stand-up pouch as described in claim 3, characterized in that: In step (1), during the conveying of the sealing cover, the sealing cover is inspected. If a defect is found in the sealing cover, the sealing cover is rejected at the outlet of the conveying channel.

5. The installation method of installing the sealing cap onto the nozzle of a stand-up pouch as described in claim 1, characterized in that: In step (2), a robotic arm is used to deliver the sealing cap to the area where multiple sealing caps are arranged in a straight line.

6. The installation method of installing the sealing cap onto the nozzle of a stand-up pouch as described in claim 1, characterized in that: In step (4), one or more robotic arms are used to grab the sealing cap, lift it up and move it above the nozzle, and then put the sealing cap down and put it on the corresponding nozzle.

7. The installation method of installing the sealing cap onto the nozzle of a stand-up pouch as described in claim 6, characterized in that: Step (5) involves using multiple cap-tightening devices installed at the end of the robotic arm to tighten the sealing cap; the cap-grabbing and cap-releasing operations in step (4) and the cap-tightening operation in step (5) are all completed using the same cap-tightening device.

8. The installation method of installing the sealing cap onto the nozzle of a stand-up pouch as described in claim 7, characterized in that: The cap-tightening device includes a rotating component, a three-jaw cylinder, and three cap-clamping friction wheels. The rotating component is mounted on a robotic arm and has a rotating end at its bottom. The three-jaw cylinder is mounted on the rotating end, and the three cap-clamping friction wheels are respectively mounted on the three jaws of the three-jaw cylinder.

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