Automatic bag sleeving device and method for a packaging device

Abstract

The present invention discloses an automatic bagging device and method for packaging equipment. The device includes at least one group of telescopic power mechanism, telescopic guide mechanism, and bag suction mechanism. The automatic bagging device is fixed on the duckbill bag-holding mechanism of the packaging equipment. A straw is extended from the position of the duckbill bag-holding mechanism to suck the packaging bag with the straw. The straw is retracted to drive the packaging bag to be put on the duckbill of the duckbill bag-holding mechanism. When the duckbill of the duckbill bag-holding mechanism is opened, the packaging bag is held open, thereby completing the automatic bagging and bag-holding action. No human intervention is required, and the bagging and bag-holding work of the packaging equipment is completed automatically, at high speed, and accurately.

Description

Technical Field

[0001] The present invention relates to an automatic bag sleeving device and method for a packaging device, and particularly to an automatic bag sleeving device and method for a paper product packaging machine. Background Art

[0002] A packaging machine is a device for packaging products and is a mechanical device widely used in industrial production. For the packaging of products produced on an assembly line, such as paper product packaging, a relatively high degree of automation of the packaging machine is required. For paper product packaging machinery, how to open and push a packaging bag into the material is currently a major technical problem. Currently, it is mostly done manually by sleeving the packaging bag on a bag-opening duckbill, and the packaging bag is opened by the opening of the duckbill. The efficiency of manual bag sleeving is extremely low and it is difficult to meet the production requirements. For some packaging devices with a relatively high degree of automation, a complex and large suction bag sleeving mechanism is mostly used to achieve automatic bag sleeving, and its mechanism is complex and the cost is very high. Summary of the Invention

[0003] The object of the present invention is to overcome the deficiencies of the prior art and provide an automatic bag sleeving device and method for a packaging device, and creatively design an automatic bag sleeving device directly fixed on a duckbill bag-opening mechanism, which has a simple structure, a relatively low cost, and a relatively high bag sleeving accuracy and success rate.

[0004] The technical solution adopted by the present invention to solve its technical problems is: an automatic bag sleeving device for a packaging equipment, the device comprising at least one set of telescopic power mechanism, telescopic guiding mechanism, and bag sucking mechanism, characterized in that: the at least one set of telescopic power mechanism is fixedly connected to the telescopic guiding mechanism; the bag sucking mechanism is fixed on the telescopic guiding mechanism; the at least one set of telescopic power mechanism drives the bag sucking mechanism to extend or retract under the guiding action of the telescopic guiding mechanism; during the extension operation of the bag sucking mechanism, the packaging bag is adsorbed, and during the retraction process of the bag sucking mechanism, the packaging bag is sleeved on the duckbill bag supporting mechanism of the packaging equipment. The at least one set of telescopic power mechanism includes a cylinder, a fixing plate, a power rod, a power plate, two power slide rail assemblies, two synchronous pulleys, and a synchronous belt; the fixing plate is fixed above or below the duckbill bag supporting mechanism of the packaging equipment; the cylinder is fixed above or below the fixing plate; the two power slide rail assemblies are fixed on both side surfaces of the power rod; the power slide rail assembly on one side of the power rod is fixedly connected to the fixing plate through the slider on the slide rail; the power slide rail assembly on the other side of the power rod is fixedly connected to the power plate through the slider on the slide rail; the piston rod of the cylinder is connected and fixed to the power rod; the two synchronous pulleys are fixed at both ends on one side of the power rod, the synchronous belt is wound around the two synchronous pulleys, and the synchronous belts on both sides of the synchronous pulleys are respectively fixedly connected to the fixing plate and the power plate; or, the two synchronous pulleys are respectively fixed at the front and rear ends on both sides of the power rod, a synchronous belt is wound around each of the two synchronous pulleys, and both ends of each synchronous belt are respectively fixedly connected to the fixing plate and the power plate; the telescopic movement of the piston rod of the cylinder drives the telescopic movement of the power rod, and the telescopic movement of the power rod drives the telescopic movement of the power plate under the action of the power slide rail assembly, synchronous pulley, and synchronous belt. The telescopic guiding mechanism includes four guiding slide rail assemblies, two guiding fixing blocks, two guiding plates, a power connecting plate, and two power connecting plate fixing blocks; the two guiding fixing blocks are fixed on both sides of the duckbill bag supporting mechanism of the packaging equipment, the slide rails of the two guiding slide rail assemblies are respectively fixed in the guiding grooves of the two guiding fixing blocks, the sliders of the two guiding slide rail assemblies are respectively fixedly connected to a guiding plate, and the guiding plate slides on the slide rail along the direction of the guiding groove; the vertical directions on the two guiding plates are respectively fixedly connected to the sliders of the other two guiding slide rail assemblies, so that the slide rails of the other two guiding slide rail assemblies slide along the vertical direction; the two power connecting plate fixing blocks are respectively fixed on the slide rails of the two guiding slide rail assemblies in the vertical direction; the one power connecting plate is fixed between the two power connecting plate fixing blocks, and the power connecting plate is fixedly connected to the power plate on the telescopic power mechanism. The bag sucking mechanism includes two suction pipes; one suction pipe is fixed between the two guiding plates in the telescopic guiding mechanism; the other suction pipe is fixed between the two power connecting plate fixing blocks in the telescopic guiding mechanism; the two suction pipes extend or retract under the action of the telescopic power mechanism and the telescopic guiding mechanism; in the retracted state of the two suction pipes, they are respectively located above and below the duckbill bag supporting mechanism of the packaging equipment; in the extended state of the two suction pipes, the bag sucking hole surfaces of the two suction pipes are attached and closed.

[0005] An automatic bagging method for packaging equipment, using the above-mentioned device, is characterized in that: the automatic bagging device is fixed to the duckbill bag-holding mechanism of the packaging equipment, a straw is extended from the position of the duckbill bag-holding mechanism, the packaging bag is sucked by the straw, the straw is retracted to drive the packaging bag to be put on the duckbill of the duckbill bag-holding mechanism, and the packaging bag is opened when the duckbill of the duckbill bag-holding mechanism is opened, thereby completing the automatic bagging and bag-holding action, including the following steps:

[0006] a telescopic power mechanism of the cylinder piston rod extends, driving the telescopic guide mechanism fixed to the power plate power connecting plate extends;

[0007] b. The power connecting plate of the telescopic guide mechanism extends and drives a straw of the bag suction mechanism fixed between the two power connecting plates and the fixed block to extend; the power connecting plate of the telescopic guide mechanism extends and drives the two guide plates to slide along the guide groove direction of the guide fixed block to extend, and another straw of the bag suction mechanism fixed between the guide plates extends;

[0008] c. The two suction pipes of the bag suction mechanism gradually close the bag suction hole under the guidance of the telescopic guide mechanism to suck the bag opening in front of the duckbill bag support mechanism;

[0009] d. After the two suction tubes of the bag suction mechanism are closed and suck the bag, the cylinder piston rod of the telescopic power mechanism retracts, driving the power connecting plate of the telescopic guide mechanism fixed to the power plate to retract;

[0010] e. The power connecting plate of the telescopic guide mechanism retracts and drives a straw fixed between the two power connecting plates and the fixed block to retract the bag suction mechanism; the power connecting plate of the telescopic guide mechanism retracts and drives the two guide plates to slide along the guide groove direction of the guide fixed block and retract, and the other straw of the bag suction mechanism fixed between the guide plates retracts;

[0011] f. The two suction tubes of the bag suction mechanism gradually retract under the guidance of the telescopic guide mechanism, while the bag suction hole surface gradually opens, driving the bag opening to open while gradually covering the duckbill of the duckbill bag support mechanism;

[0012] g. The duckbill bag-opening mechanism gradually opens and opens the packaging bag until it is tightened to complete the bag-opening action.

[0013] The beneficial effect of the present invention is that an automatic bagging device and method for packaging equipment creatively fixes the automatic bagging device on the duckbill bag-holding mechanism of the packaging equipment, extends a straw from the position of the duckbill bag-holding mechanism, sucks the packaging bag with the straw, retracts the straw and drives the packaging bag to be put on the duckbill of the duckbill bag-holding mechanism, and when the duckbill of the duckbill bag-holding mechanism is opened, the packaging bag is held open, thereby completing the automatic bagging and bag-holding action, without the need for human intervention, and completing the bagging and bag-holding work of the packaging equipment fully automatically, at high speed and accurately.

[0014] The present invention will be further described in detail below with reference to the embodiments, but the automatic bagging device and method for packaging equipment of the present invention are not limited to the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the embodiments in the accompanying drawings.

[0016] Figure 1 Schematic diagram of an apparatus according to an embodiment of the present invention.

[0017] Figure 2 It is a front view schematic diagram of the telescopic power mechanism of the first embodiment of the present invention.

[0018] Figure 3 It is a rear view schematic diagram of the telescopic power mechanism of the first embodiment of the present invention.

[0019] Figure 4 It is a schematic diagram of the extension of the telescopic power mechanism of the first embodiment of the present invention.

[0020] Figure 5 It is a front view schematic diagram of the telescopic power mechanism of the second embodiment of the present invention.

[0021] Figure 6 It is a schematic diagram of the extension of the telescopic power mechanism of the second embodiment of the present invention.

[0022] Figure 7 It is a front view schematic diagram of the telescopic power mechanism of embodiment 3 of the present invention.

[0023] Figure 8 It is a rear view schematic diagram of the telescopic power mechanism of embodiment 3 of the present invention.

[0024] Figure 9 It is a schematic diagram of the extension of the telescopic power mechanism of the third embodiment of the present invention.

[0025] Figure 10 2. It is a schematic diagram of the retraction of the telescopic guide mechanism according to an embodiment of the present invention.

[0026] Figure 11 It is a three-dimensional schematic diagram of the telescopic guide mechanism of an embodiment of the present invention.

[0027] Figure 12 Schematic diagram of the telescopic guide mechanism extending in accordance with an embodiment of the present invention.

[0028] Figure 13 2. It is a schematic diagram of the device before bag suction according to an embodiment of the present invention.

[0029] Figure 14 Schematic diagram of a bag suction device according to an embodiment of the present invention.

[0030] Figure 15It is a schematic diagram of the device bagging and bag supporting in the embodiment of the present invention.

[0031] In the figure, 1. Telescopic power mechanism, 2. Telescopic guiding mechanism, 3. Bag suction mechanism, 4. Duckbill bag supporting mechanism, 10. Cylinder, 101. Piston rod, 11. Fixed plate, 12. Power rod, 13. Power plate, 14. Power slide rail assembly, 140. Slide block, 15. Synchronous pulley, 16. Synchronous belt, 20. Guiding slide rail assembly, 201. Slide block, 21. Guiding fixed block, 22. Guiding plate, 23. Power connection plate, 24. Power connection plate fixed block, 30. Suction pipe, 5. Packaging bag. Detailed implementation manners

[0032] Embodiment 1, as Figure 1 shown, an automatic bagging device of a packaging equipment, the device includes a group of telescopic power mechanisms 1, telescopic guiding mechanisms 2, and bag suction mechanisms 3, and is characterized in that: the group of telescopic power mechanisms 1 is fixedly connected with the telescopic guiding mechanisms 2; the bag suction mechanisms 3 are fixed on the telescopic guiding mechanisms 2; at least one group of telescopic power mechanisms 1 drives the bag suction mechanisms 3 to extend or retract under the guiding action of the telescopic guiding mechanisms 2; during the extending operation of the bag suction mechanisms 3, the packaging bags 5 are adsorbed, and during the retracting process of the bag suction mechanisms 3, the packaging bags 5 are sleeved on the duckbill bag supporting mechanisms 4 of the packaging equipment.

[0033] Embodiment 1, as Figure 2 、 Figure 3 、 Figure 4 shown, the group of telescopic power mechanisms 1 includes a cylinder 10, a fixed plate 11, a power rod 12, a power plate 13, two power slide rail assemblies 14, two synchronous pulleys 15, and a synchronous belt 16; the fixed plate 11 is fixed below the duckbill bag supporting mechanism 4 of the packaging equipment; the cylinder 10 is fixed above the fixed plate 11; the two power slide rail assemblies 14 are fixed on the two side surfaces of the power rod 12; the power slide rail assembly 14 on one side of the power rod 12 is fixedly connected with the fixed plate 11 through the slide block 140 on the slide rail; the power slide rail assembly 14 on the other side of the power rod 12 is fixedly connected with the power plate 13 through the slide block 140 on the slide rail; the piston rod 101 of the cylinder 10 is connected and fixed with the power rod 12; the two synchronous pulleys 15 are respectively fixed at the front and rear ends on both sides of the power rod 12, and a synchronous belt 16 is wound around each of the two synchronous pulleys 15, and both ends of each synchronous belt 16 are respectively fixedly connected with the fixed plate 11 and the power plate 13; the telescopic movement of the piston rod 101 of the cylinder 10 drives the power rod 12 to perform telescopic movement, and the telescopic movement of the power rod 12 drives the power plate 13 to perform telescopic movement under the action of the power slide rail assembly 14, synchronous pulley 15, and synchronous belt 16.

[0034] Embodiment 2, as Figure 5 、 Figure 6As shown in the figure, the cylinder 10 is fixed above the fixed plate 11; the two power slide rail assemblies 14 are fixed on both side surfaces of the power rod 12; the power slide rail assembly 14 on one side of the power rod 12 is fixedly connected to the fixed plate 11 through the slider on the slide rail 140; the power slide rail assembly 14 on the other side of the power rod 12 is fixedly connected to the power plate 13 through the slider 140 on the slide rail; the piston rod 101 of the cylinder 10 is fixedly connected to the power rod 12; the two synchronous pulleys 15 are fixed at both ends on one side of the power rod 12, the synchronous belt 16 is wound around the two synchronous pulleys 15, and the synchronous belt 16 on both sides of the synchronous pulley 15 is fixedly connected to the fixed plate 11 and the power plate 13 respectively; the telescopic movement of the piston rod 101 of the cylinder 10 drives the telescopic movement of the power rod 12, and the telescopic movement of the power rod 12 drives the telescopic movement of the power plate 13 under the action of the power slide rail assembly 14, the synchronous pulley 15, and the synchronous belt 16.

[0035] Embodiment 3, as Figure 7 、 Figure 8 、 Figure 9 As shown in the figure, the cylinder 10 is fixed below the fixed plate 11, and the two power slide rail assemblies 14 are fixed on both side surfaces of the power rod 12; the power slide rail assembly 14 on one side of the power rod 12 is fixedly connected to the fixed plate 11 through the slider on the slide rail 140; the power slide rail assembly 14 on the other side of the power rod 12 is fixedly connected to the power plate 13 through the slider 140 on the slide rail; the piston rod 101 of the cylinder 10 is fixedly connected to the power rod 12; the two synchronous pulleys 15 are respectively fixed at the front and rear ends on both sides of the power rod 12, a synchronous belt 16 is wound around each of the two synchronous pulleys 15, and both ends of each synchronous belt 16 are fixedly connected to the fixed plate 11 and the power plate 13 respectively; the telescopic movement of the piston rod 101 of the cylinder 10 drives the telescopic movement of the power rod 12, and the telescopic movement of the power rod 12 drives the telescopic movement of the power plate 13 under the action of the power slide rail assembly 14, the synchronous pulley 15, and the synchronous belt 16.

[0036] Embodiment, as Figure 10 、 Figure 11 、 Figure 12As shown, the telescopic guide mechanism 2 includes four guide rail assemblies 20, two guide fixing blocks 21, two guide plates 22, a power connecting plate 23, and two power connecting plate fixing blocks 24; the two guide fixing blocks 21 are fixed on both sides of the duckbill bag-supporting mechanism 4 of the packaging equipment, the slide rails of the two guide rail assemblies 20 are respectively fixed in the guide grooves of the two guide fixing blocks 21, the sliders 201 of the two guide rail assemblies 20 are respectively fixedly connected to a guide plate 22, and the guide plate 22 moves along the guide The two guide plates 22 are fixedly connected to the sliders 201 of the other two guide rail assemblies 20 in the vertical direction, so that the rails of the other two guide rail assemblies 20 slide along the vertical direction; the two power connecting plate fixing blocks 24 are respectively fixed on the rails of the two guide rail assemblies 20 in the vertical direction; the one power connecting plate 23 is fixed between the two power connecting plate fixing blocks 24, and the power connecting plate 23 is fixedly connected to the power plate 13 on the telescopic power mechanism 1. The bag suction mechanism 3 includes two straws 30; one straw 30 is fixed between the two guide plates 22 in the telescopic guide mechanism 2; the other straw 30 is fixed between the two power connection plate fixing blocks 24 in the telescopic guide mechanism 2; the two straws 30 are extended or retracted under the action of the telescopic power mechanism 1 and the telescopic guide mechanism 2; when the two straws 30 are retracted, they are respectively located above and below the duckbill bag-supporting mechanism 4 of the packaging equipment; when the two straws 30 are extended, the bag suction holes of the two straws 30 are closed against each other.

[0037] Examples, such as Figure 13 、 Figure 14 、 Figure 15 As shown, an automatic bagging method for packaging equipment adopts the above-mentioned device, which is characterized in that: the automatic bagging device is fixed to the duckbill bag-holding mechanism 4 of the packaging equipment, a straw 30 is extended from the duckbill bag-holding mechanism 4, and the packaging bag 5 is sucked by the straw 30. The straw 30 is retracted to drive the packaging bag 5 to be put on the duckbill of the duckbill bag-holding mechanism 4. When the duckbill of the duckbill bag-holding mechanism 4 is opened, the packaging bag 5 is opened, thereby completing the automatic bagging and bag-holding action, including the following steps:

[0038] a telescopic power mechanism 1 of the cylinder 10 piston rod 101 extends, driving the telescopic guide mechanism 2 fixed to the power plate 13 on the power connecting plate 23 extends;

[0039] b. The power connecting plate 23 of the telescopic guide mechanism 2 extends, driving a suction pipe 30 of the bag suction mechanism 3 fixed between the two power connecting plate fixing blocks 24 to extend; the power connecting plate 23 of the telescopic guide mechanism 2 extends, and at the same time drives the two guide plates 22 to slide and extend along the guide groove direction of the guide fixing block 21, and another suction pipe 30 of the bag suction mechanism 3 fixed between the guide plates 22 extends;

[0040] c. The two suction pipes 30 of the bag suction mechanism 3 gradually close the bag opening 5 in front of the duckbill bag support mechanism 4 under the guiding effect of the telescopic guide mechanism 2;

[0041] d. After the two suction tubes 30 of the bag suction mechanism 3 are closed and suck the bag 5, the cylinder piston rod 101 of the telescopic power mechanism 1 is retracted, driving the power connecting plate 23 of the telescopic guide mechanism 2 fixed to the power plate 13 to retract;

[0042] e. The retraction of the power connecting plate 23 of the telescopic guide mechanism 2 drives one suction pipe 30 of the bag suction mechanism 3 fixed between the two power connecting plate fixing blocks 24 to retract; the retraction of the power connecting plate 23 of the telescopic guide mechanism 2 simultaneously drives the two guide plates 22 to slide and retract along the guide groove direction of the guide fixing block 21, and the other suction pipe 30 of the bag suction mechanism 3 fixed between the guide plates 22 to retract;

[0043] f. The two suction pipes 30 of the bag suction mechanism 3 are gradually retracted under the guiding effect of the telescopic guide mechanism 2, while the suction bag hole surface gradually opens, driving the bag opening 5 to open while gradually enclosing the duckbill of the duckbill support bag mechanism 4;

[0044] g. The duckbill bag support mechanism 4 gradually opens and opens the packaging bag 5 until the bag is tightened and the bag support action is completed.

[0045] The above embodiments are only used to further illustrate the automatic bagging device and method of a packaging equipment of the present invention, but the present invention is not limited to the embodiments. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the technical solution of the present invention.

Claims

1. An automatic bag-sleeving device for a packaging device, the device comprising at least one set of telescopic power mechanisms, telescopic guiding mechanisms, and bag-sucking mechanisms, characterized in that: The at least one set of telescopic power mechanism is fixedly connected to the telescopic guiding mechanism; the bag sucking mechanism is fixed on the telescopic guiding mechanism; under the guiding action of the telescopic guiding mechanism, the at least one set of telescopic power mechanism drives the bag sucking mechanism to extend or retract; during the extension operation of the bag sucking mechanism, the packaging bag is adsorbed, and during the retraction process of the bag sucking mechanism, the packaging bag is sleeved on the duckbill bag supporting mechanism of the packaging equipment; The at least one set of telescopic power mechanism includes a cylinder, a fixing plate, a power rod, a power plate, two power slide rail assemblies, two synchronous pulleys, and a synchronous belt; the fixing plate is fixed above or below the duckbill bag supporting mechanism of the packaging equipment; the cylinder is fixed above or below the fixing plate; the two power slide rail assemblies are fixed on both side surfaces of the power rod; the power slide rail assembly on one side of the power rod is fixedly connected to the fixing plate through the slider on the slide rail; the power slide rail assembly on the other side of the power rod is fixedly connected to the power plate through the slider on the slide rail; the piston rod of the cylinder is connected and fixed to the power rod; the two synchronous pulleys are fixed at both ends on one side of the power rod, the synchronous belt is wound around the two synchronous pulleys, and the synchronous belts on both sides of the synchronous pulleys are respectively fixedly connected to the fixing plate and the power plate; or, the two synchronous pulleys are respectively fixed at the front and rear ends on both sides of the power rod, and a synchronous belt is wound around each of the two synchronous pulleys, and both ends of each synchronous belt are respectively fixedly connected to the fixing plate and the power plate; the telescopic movement of the piston rod of the cylinder drives the telescopic movement of the power rod, and the telescopic movement of the power rod drives the telescopic movement of the power plate through the action of the power slide rail assembly, synchronous pulley, and synchronous belt; The telescopic guiding mechanism includes four guiding slide rail assemblies, two guiding fixing blocks, two guiding plates, a power connecting plate, and two power connecting plate fixing blocks; the two guiding fixing blocks are fixed on both sides of the duckbill bag supporting mechanism of the packaging equipment, the slide rails of the two guiding slide rail assemblies are respectively fixed in the guiding grooves of the two guiding fixing blocks, the sliders of the two guiding slide rail assemblies are respectively fixedly connected to a guiding plate, and the guiding plate slides on the slide rail along the direction of the guiding groove; the vertical directions on the two guiding plates are respectively fixedly connected to the sliders of the other two guiding slide rail assemblies, so that the slide rails of the other two guiding slide rail assemblies slide along the vertical direction; the two power connecting plate fixing blocks are respectively fixed on the slide rails of the two guiding slide rail assemblies in the vertical direction; the one power connecting plate is fixed between the two power connecting plate fixing blocks, and the power connecting plate is fixedly connected to the power plate on the telescopic power mechanism; The bag sucking mechanism includes two suction pipes; one suction pipe is fixed between the two guiding plates in the telescopic guiding mechanism; the other suction pipe is fixed between the two power connecting plate fixing blocks in the telescopic guiding mechanism; the two suction pipes extend or retract under the action of the telescopic power mechanism and the telescopic guiding mechanism; in the retracted state, the two suction pipes are respectively located above and below the duckbill bag supporting mechanism of the packaging equipment; in the extended state, the suction hole surfaces of the two suction pipes are attached and closed.

2. An automatic bag sleeving method for a packaging device, which uses the automatic bag sleeving device for a packaging device described in claim 1, and is characterized in that: The automatic bagging device is fixed on the duckbill bag-supporting mechanism of the packaging equipment, a straw is extended from the duckbill bag-supporting mechanism, the packaging bag is sucked by the straw, the straw is retracted to drive the packaging bag to be covered on the duckbill of the duckbill bag-supporting mechanism, and the packaging bag is opened when the duckbill of the duckbill bag-supporting mechanism is opened, thereby completing the automatic bagging and bag-supporting action, including the following steps: a telescopic power mechanism of the cylinder piston rod extends, driving the telescopic guide mechanism fixed to the power plate power connecting plate extends; b. The power connecting plate of the telescopic guide mechanism extends and drives a straw of the bag suction mechanism fixed between the two power connecting plates and the fixed block to extend; the power connecting plate of the telescopic guide mechanism extends and drives the two guide plates to slide along the guide groove direction of the guide fixed block to extend, and another straw of the bag suction mechanism fixed between the guide plates extends; c. The two suction pipes of the bag suction mechanism gradually close the bag suction hole under the guidance of the telescopic guide mechanism to suck the bag opening in front of the duckbill bag support mechanism; d. After the two suction tubes of the bag suction mechanism are closed and suck the bag, the cylinder piston rod of the telescopic power mechanism retracts, driving the power connecting plate of the telescopic guide mechanism fixed to the power plate to retract; e. The power connecting plate of the telescopic guide mechanism retracts and drives a straw fixed between the two power connecting plates and the fixed block to retract the bag suction mechanism; the power connecting plate of the telescopic guide mechanism retracts and drives the two guide plates to slide along the guide groove direction of the guide fixed block and retract, and the other straw of the bag suction mechanism fixed between the guide plates retracts; f. The two suction tubes of the bag suction mechanism gradually retract under the guidance of the telescopic guide mechanism, while the bag suction hole surface gradually opens, driving the bag opening to open while gradually covering the duckbill of the duckbill bag support mechanism; g. The duckbill bag-opening mechanism gradually opens and opens the packaging bag until it is tightened to complete the bag-opening action.

Images