Packaging bag conveying mechanism of automatic paper diaper packaging machine

Abstract

The invention relates to the technical field of paper diaper production equipment, in particular to a packaging bag conveying mechanism of an automatic paper diaper packaging machine, which is characterized by comprising a bag storage device, a translation adsorption device, an intermittent reciprocating overturning adsorption device, a bag opening pulling adsorption device, an intermittent rotating table and a bag opening opening device, three bag opening expanding devices are evenly arranged on the intermittent rotating table in the rotating direction of the intermittent rotating table, a bag opening expanding station, a bagging station and a discharging station are sequentially formed on the intermittent rotating table, and the bag storage device, the translation adsorption device, the intermittent reciprocating overturning adsorption device and the bag opening expanding adsorption device are all arranged on one side of the bag opening expanding station. According to the packaging bag opening device, packaging bags can be automatically and smoothly conveyed, bag openings of the packaging bags can be smoothly and automatically opened, and the overall production efficiency and production quality can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of diaper production equipment, and in particular to a packaging bag conveying mechanism of an automatic diaper packaging machine. Background Art

[0002] As a complete set of diaper production line to ensure the smooth operation of the assembly line, the automatic diaper packaging machine solves the problem that most manufacturers used manual or semi-automatic packaging methods in the past to improve the overall production efficiency and avoid direct manual contact to ensure hygiene and quality. Among them, the packaging bag conveying mechanism is one of the important components of the automatic diaper packaging machine, and the conveying of packaging bags and the opening of packaging bag mouths are relatively difficult to automate. Therefore, how to realize the automatic and smooth conveying of packaging bags and the smooth completion of the automatic opening of packaging bag mouths to improve production efficiency and production quality is the technical problem to be solved by this application. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a packaging bag conveying mechanism for a diaper automatic packaging machine that facilitates the automatic and smooth conveying of packaging bags and smoothly completes the automatic opening of the bag mouth, thereby improving the overall production efficiency and production quality.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows: the packaging bag conveying mechanism of the automatic diaper packaging machine includes a bag storage device, a translation adsorption device, an intermittent reciprocating flipping adsorption device, a bag opening adsorption device, an intermittent rotating table and a bag opening opening device. Three bag opening opening devices are evenly arranged on the intermittent rotating table along its rotation direction and are sequentially formed with a bag opening opening station, a bag filling station and a unloading station. The bag storage device, the translation adsorption device, the intermittent reciprocating flipping adsorption device and the bag opening opening adsorption device are all arranged on one side of the bag opening opening station. The bag storage device is used to store several stacked packaging bags, the translation adsorption device is used to adsorb the packaging bag at the bottom of the bag storage device and transfer it to the intermittent reciprocating flipping adsorption device, the intermittent reciprocating flipping adsorption device is used to transfer the packaging bag transferred from the translation adsorption device to the bag opening opening station of the intermittent rotating table, the bag opening opening adsorption device is used to cooperate with the intermittent reciprocating flipping adsorption device and initially open the bag opening of the packaging bag, and the bag opening opening device is used to extend into the bag opening of the initially opened packaging bag and completely open the bag opening of the packaging bag.

[0005] Furthermore, the bag storage device includes a first support frame and a bag storage frame fixed to the upper end of the first support frame. The bag storage frame is provided with a bag storage cavity running through its upper and lower ends. Placement plates are fixed on both sides of the left and right sides of the opening at the lower end of the bag storage cavity. An extraction port is formed between the two placement plates. The two placement plates are respectively used to support the head and tail sides of the packaging bag.

[0006] Furthermore, the translation adsorption device is arranged below the storage bag frame, and the translation adsorption device includes a second support frame, a first linear guide slider assembly, a translation seat, a first linear drive member, a second linear drive member and a first negative pressure adsorption head. The translation seat is connected to the upper end of the second support frame through a horizontal sliding connection of the first linear guide slider assembly. The first linear drive member is arranged on one side of the upper end of the second support frame and is used to drive the translation seat to move horizontally. The second linear drive member is arranged on the translation seat and is used to drive the first negative pressure adsorption head to rise and fall. A first guide assembly is provided between the first negative pressure adsorption head and the translation seat.

[0007] Furthermore, a receiving groove adapted to the first negative pressure adsorption head is provided in the middle of the upper end surface of the translation seat. When the first negative pressure adsorption head is in the receiving groove, the upper end surface of the first negative pressure adsorption head is flush with the upper end surface of the translation seat.

[0008] Furthermore, the intermittent reciprocating flipping adsorption device includes a first base, a flip plate, a third linear drive component, and a second negative pressure adsorption head. The first base is fixedly mounted on the first support seat, and a rotatable and laterally arranged first rotating shaft is installed on the first base through a first bearing. A first intermittent reciprocating drive source is provided on the first base, and the first intermittent reciprocating drive source is transmission-connected to one end of the first rotating shaft and is used to drive the first rotating shaft to perform intermittent reciprocating rotation of 90 degrees. The flip plate is fixedly mounted on the other end of the first rotating shaft. The third linear drive component is provided on the flip plate and is used to drive the second negative pressure adsorption head to move along the radial direction of the first rotating shaft. A second guide assembly is provided between the second negative pressure adsorption head and the flip plate.

[0009] Furthermore, the bag opening adsorption device includes a second support seat, a guide plate, a fourth linear drive member and a third negative pressure adsorption head. The fourth linear drive member is arranged at the upper end of the second support seat and is used to drive the third negative pressure adsorption head to move laterally. The guide plate is fixedly arranged at the upper end of the second support seat, and a third guide assembly is provided between the third negative pressure adsorption head and the guide plate.

[0010] Furthermore, the intermittent rotating table includes a second base and a turntable. A rotatable and vertically arranged second rotating shaft is installed on the second base through a second bearing. A second intermittent driving source is provided on the second base. The second intermittent driving source is connected to the lower end of the second rotating shaft and is used to drive the second rotating shaft to rotate intermittently 120 degrees. The turntable is fixedly installed on the upper end of the second rotating shaft. Three circular perforations are evenly arranged on the turntable along its circumferential direction, corresponding to the bag opening station, bagging station and unloading station respectively.

[0011] Further, the bag mouth opening device includes a spreading plate, an annular lifting plate, an annular adjusting plate, a strip-shaped lifting plate, a fifth linear driving member, a sixth linear driving member, and a tension spring. The annular adjusting plate and the annular lifting plate are arranged from top to bottom and located above the turntable. The annular adjusting plate, the annular lifting plate, and the circular perforation are coaxially arranged. The fifth linear driving member is arranged on the annular lifting plate and is used to drive the annular adjusting plate to lift. A fourth guiding assembly is arranged between the annular adjusting plate and the annular lifting plate. The spreading plates are multiple and are located inside the annular lifting plate and the annular adjusting plate and are evenly arranged along the circumference of the circular perforation. A conical bag loading cavity with a wider upper part and a narrower lower part is formed by enclosing among the multiple spreading plates. The outer peripheral surface of the spreading plate is hinged to the inner peripheral surface of the annular lifting plate. A guiding part and a spreading part are respectively formed on the upper and lower sides of the spreading plate at the hinge position. The tension springs are multiple and correspond to the multiple spreading plates one by one. Multiple connecting blocks corresponding to the multiple spreading plates one by one are fixedly arranged on the outer peripheral surface of the annular lifting plate. One end of the tension spring is connected to the spreading plate and the other end is connected to the connecting block. The tension spring is used to always apply an elastic force to the spreading plate so that the outer peripheral surface of the spreading plate abuts against the inner peripheral surface of the annular adjusting plate. The strip-shaped lifting plate is fixedly connected to the annular lifting plate. The strip-shaped lifting plate is slidably connected to the fixed shaft up and down through a second linear guide rail slider assembly. The fixed shaft is fixedly arranged at the center of the upper end surface of the turntable. An installation plate is fixedly arranged at the top of the fixed shaft. The sixth linear driving member is arranged on the installation plate and is used to drive the strip-shaped lifting plate to lift.

[0012] Further, the inner peripheral surface of the annular adjusting plate is provided with multiple guiding grooves that are adapted to and correspond to the multiple spreading plates one by one. The inner bottom surface of the guiding groove is a semi-circular arc surface.

[0013] Further, the spreading plate is in an arc-shaped bending shape, and an included angle is formed between the spreading part and the guiding part. An anti-slip pad is fixedly arranged on the outer side surface of the spreading part, and a plurality of anti-slip bumps are fixedly arranged on the outer side surface of the anti-slip pad.

[0014] From the above description, it can be seen that the packaging bag conveying mechanism of the automatic diaper packaging machine provided by the present invention has the following beneficial effects: through the setting of the bag storage device, it is convenient to store a plurality of stacked packaging bags, and with the use of the translation adsorption device, it is convenient to adsorb and extract the packaging bag located at the bottom of the bag storage device and transfer it to the intermittent reciprocating flipping adsorption device. The intermittent reciprocating flipping adsorption device can adsorb the packaging bag transferred by the translation adsorption device and transfer it to the bag opening opening station of the intermittent rotating table. By cooperating with the bag opening opening adsorption device, the bag opening opening adsorption device and The intermittent reciprocating flipping adsorption device is respectively adsorbed on both sides of the bag opening of the packaging bag, thereby achieving the preliminary opening of the bag opening of the packaging bag, and then, the bag opening opening device is extended into the bag opening of the initially opened packaging bag and fully opens the bag opening of the packaging bag. At the same time, with the intermittent rotation of the intermittent turntable, the packaging bag with the fully opened bag opening can be transferred to the bagging station to facilitate the subsequent smooth bagging of diapers at the bagging station. In this way, the automatic and smooth transportation of the packaging bag can be realized and the automatic opening of the bag opening of the packaging bag can be successfully completed, which can improve the overall production efficiency and production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic three-dimensional structural diagram of the packaging bag conveying mechanism of the automatic diaper packaging machine of the present invention.

[0016] Figure 2 for Figure 1 A local enlarged schematic diagram of point A in the middle.

[0017] Figure 3 It is a front view of the packaging bag conveying mechanism of the automatic diaper packaging machine of the present invention.

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the intermittent reciprocating flipping adsorption device.

[0019] Figure 5 Schematic diagram of the three-dimensional structure of the translational adsorption device.

[0020] Figure 6 It is a schematic diagram of the three-dimensional structure of the bag storage device.

[0021] Figure 7 Schematic diagram of the three-dimensional structure of the adsorption device for opening the bag.

[0022] Figure 8 Schematic diagram of the three-dimensional structure of the turntable.

[0023] Figure 9 Schematic diagram of the three-dimensional structure of the support plate.

[0024] Figure 10 This is a schematic diagram of the intermittent reciprocating flipping adsorption device and the bag opening adsorption device when initially opening the bag opening of the packaging bag.

[0025] In the figure: 1-bag storage device; 11-first support frame; 12-bag storage frame; 121-bag storage cavity; 122-placing plate; 123-extraction port; 2-translational adsorption device; 21-second support frame; 22-first linear guide slider assembly; 23-translational seat; 231-accommodating groove; 24-first linear drive member; 25-second linear drive member; 26-first negative pressure adsorption head; 27-first guide assembly; 3-intermittent reciprocating flip adsorption device; 31-first base; 32-flip plate; 33-third linear drive member; 34-second negative pressure adsorption head; 35-first support seat; 36-first rotating shaft; 37-first intermittent reciprocating drive source; 38-second guide assembly; 4-bag opening adsorption device; 41-second support Seat; 42-guide plate; 43-fourth linear drive member; 44-third negative pressure adsorption head; 45-third guide assembly; 5-intermittent rotating table; 51-second base; 52-turntable; 521-circular perforation; 53-second rotating shaft; 54-second intermittent drive source; 55-fixed shaft; 56-mounting plate; 6-bag opening device; 61-opening plate; 611-guide part; 612-opening part; 6121-anti-slip pad; 62-annular lifting plate; 621-connecting block; 63-annular adjustment plate; 631-guide groove; 64-strip lifting plate; 65-fifth linear drive member; 66-sixth linear drive member; 67-tension spring; 68-fourth guide assembly; 69-second linear guide slider assembly; 7-packaging bag. DETAILED DESCRIPTION

[0026] The present invention is further described below through specific embodiments.

[0027] like Figures 1 to 10As shown in the figure, the packaging bag conveying mechanism of the disposable diaper automatic packaging machine of the present invention includes a bag storage device 1, a translation adsorption device 2, an intermittent reciprocating flipping adsorption device 3, a bag mouth opening adsorption device 4, an intermittent rotating table 5, and a bag mouth expanding device 6. Three bag mouth expanding devices 6 are evenly arranged along the rotation direction of the intermittent rotating table 5, and a bag mouth expanding working position, a bag loading working position, and a discharging working position are sequentially formed. The bag storage device 1, the translation adsorption device 2, the intermittent reciprocating flipping adsorption device 3, and the bag mouth opening adsorption device 4 are all arranged on one side of the bag mouth expanding working position. The bag storage device 1 is used to store a plurality of packaging bags 7 stacked and placed. The translation adsorption device 2 is used to adsorb and transfer the lowermost packaging bag 7 in the bag storage device 1 to the intermittent reciprocating flipping adsorption device 3. The intermittent reciprocating flipping adsorption device 3 is used to transfer the packaging bag 7 transferred by the translation adsorption device 2 to the bag mouth expanding working position of the intermittent rotating table 5. The bag mouth opening adsorption device 4 is used to cooperate with the intermittent reciprocating flipping adsorption device 3 to initially open the bag mouth of the packaging bag 7. The bag mouth expanding device 6 is used to extend into the initially opened bag mouth of the packaging bag 7 and fully expand the bag mouth of the packaging bag 7.

[0028] Through the setting of the bag storage device 1, it is convenient to store a plurality of stacked packaging bags 7. In cooperation with the use of the translation adsorption device 2, it is convenient to adsorb, extract and transfer the lowermost packaging bag 7 in the bag storage device 1 to the intermittent reciprocating flipping adsorption device 3. The intermittent reciprocating flipping adsorption device 3 can adsorb and transfer the packaging bag 7 transferred by the translation adsorption device 2 to the bag mouth expanding working position of the intermittent rotating table 5. By cooperating with the use of the bag mouth opening adsorption device 4, the bag mouth opening adsorption device 4 and the intermittent reciprocating flipping adsorption device 3 respectively adsorb on both sides of the bag mouth of the packaging bag 7, thereby realizing the initial opening of the bag mouth of the packaging bag 7. Then, the bag mouth expanding device 6 extends into the initially opened bag mouth of the packaging bag 7 and fully expands the bag mouth of the packaging bag 7. At the same time, with the intermittent rotation of the intermittent rotating table 5, the packaging bag 7 with the fully expanded bag mouth can be transferred to the bag loading working position to facilitate the subsequent smooth bagging of disposable diapers at the bag loading working position. In this way, the automatic and smooth conveying of the packaging bag 7 can be realized, and the automatic opening of the bag mouth of the packaging bag 7 can be successfully completed, which can improve the overall production efficiency and production quality.

[0029] The bag storage device 1 includes a first support frame 11 and a bag storage frame 12 fixedly arranged at the upper end of the first support frame 11. A bag storage cavity 121 penetrating through the upper and lower ends thereof is arranged in the bag storage frame 12. Placing plates 122 are fixedly arranged on both the left and right sides at the lower opening of the bag storage cavity 121. An extraction opening 123 is formed between the two placing plates 122. The two placing plates 122 are respectively used to support the head and tail sides of the packaging bag 7. In this way, a plurality of packaging bags 7 can be stacked and placed in the bag storage cavity 121, and it is convenient to extract the lowermost packaging bag 7 in the bag storage cavity 121 from the extraction opening 123. In addition, notch openings are arranged on the front and rear surfaces of the bag storage frame 12 to further facilitate the stacked placement of the packaging bag 7 in the bag storage cavity 121.

[0030] The translation and adsorption device 2 is arranged below the bag storage frame 12. The translation and adsorption device 2 includes a second support frame 21, a first linear guide rail slider assembly 22, a translation seat 23, a first linear driving member 24, a second linear driving member 25, and a first negative pressure adsorption head 26. The translation seat 23 is horizontally slidably connected to the upper end of the second support frame 21 through the first linear guide rail slider assembly 22 to guide the movement of the translation seat 23 and effectively ensure the smoothness and smoothness during its movement. The first linear driving member 24 is arranged on one side of the upper end of the second support frame 21 and is used to drive the translation seat 23 to move horizontally, so that the translation seat 23 can be smoothly moved and switched between the bag storage device 1 and the intermittent reciprocating flipping and adsorption device 3. The second linear driving member 25 is arranged on the translation seat 23 and is used to drive the first negative pressure adsorption head 26 to move up and down, thereby facilitating the adsorption and extraction action on the lowermost packaging bag 7 in the bag storage cavity 121 of the bag storage frame 12. A first guiding assembly 27 is arranged between the first negative pressure adsorption head 26 and the translation seat 23 to guide the up and down movement of the first negative pressure adsorption head 26.

[0031] Correspondingly, there are two first linear guide rail slider assemblies 22 arranged at intervals. The first linear guide rail slider assembly 22 includes a first guide rail and a first slider that are adapted and slidably matched. The first guide rail is fixedly installed at the upper end of the second support frame 21, and the first slider is fixedly installed at the lower end of the translation seat 23, thereby effectively ensuring the smoothness and smoothness during the movement of the translation seat 23.

[0032] The first linear driving member 24 can be a first hydraulic cylinder, a first air cylinder, or a first electric push rod, and the second linear driving member 25 can be a second hydraulic cylinder, a second air cylinder, or a second electric push rod.

[0033] The first negative pressure adsorption head 26 can adopt the structure in the existing technology. The first negative pressure adsorption head 26 is connected to an external negative pressure source device, such as an air pump, through a first hose. When the first negative pressure adsorption head 26 is controlled by the external negative pressure source device to perform an air suction action, it can produce an adsorption effect on the packaging bag 7.

[0034] The first guide assembly 27 includes a corresponding first guide rod and a first guide hole. There are two first guide rods and two first guide holes, which are arranged at intervals. The first guide hole is arranged on the translation seat 23. The upper end of the first guide rod is fixedly connected to the first negative pressure adsorption head 26. The lower end of the first guide rod passes through the first guide hole and the two are slidably fitted together, thereby further playing a corresponding guiding role in the lifting and lowering of the first negative pressure adsorption head 26, so as to better ensure the stability and smoothness of the first negative pressure adsorption head 26 during lifting and lowering. In addition, the lower end of the first guide rod is also fixedly connected to a first limit block.

[0035] In addition, a receiving groove 231 adapted to the first negative pressure adsorption head 26 is provided in the middle of the upper end surface of the translation seat 23. When the first negative pressure adsorption head 26 is in the receiving groove 231, the upper end surface of the first negative pressure adsorption head 26 is flush with the upper end surface of the translation seat 23. As a result, when the first negative pressure adsorption head 26 adsorbs the packaging bag 7, the remaining unadsorbed area of the packaging bag 7 can be supported on the upper end surface of the translation seat 23, thereby better ensuring the overall flatness of the packaging bag 7, which is conducive to the smooth adsorption of the subsequent intermittent reciprocating flipping adsorption device 3.

[0036] The intermittent reciprocating flipping adsorption device 3 includes a first base 31, a flip plate 32, a third linear drive member 33, and a second negative pressure adsorption head 34. The first base 31 is fixedly mounted on a first support seat 35. A rotatable and laterally arranged first rotating shaft 36 is installed on the first base 31 through a first bearing. A first intermittent reciprocating drive source 37 is provided on the first base 31. The first intermittent reciprocating drive source 37 is transmission-connected to one end of the first rotating shaft 36 and is used to drive the first rotating shaft 36 to perform intermittent reciprocating rotation of 90 degrees. The flip plate 32 is fixedly mounted on the other end of the first rotating shaft 36. The third linear drive member 33 is provided on the flip plate 32 and is used to drive the second negative pressure adsorption head 34 to move along the radial direction of the first rotating shaft 36, thereby facilitating the adsorption of the packaging bag 7 transferred from the translational adsorption device 2 and transferring it to the bag opening station of the intermittent rotating table 5. A second guide assembly 38 is provided between the second negative pressure adsorption head 34 and the flip plate 32 to guide the movement of the second negative pressure adsorption head 34.

[0037] The first intermittent reciprocating drive source 37 includes a first servo motor and a first intermittent dividing mechanism. The motor shaft of the first servo motor is drivingly connected to the input shaft of the first intermittent dividing mechanism, and the output shaft of the first intermittent dividing mechanism is drivingly connected to the first rotating shaft 36. By controlling the forward and reverse rotation of the first servo motor and cooperating with the use of the first intermittent dividing mechanism, it is convenient to drive the first rotating shaft 36 to perform intermittent reciprocating rotation of 90 degrees.

[0038] The third linear drive member 33 can be a third hydraulic cylinder, a third air cylinder or a third electric push rod.

[0039] The second negative pressure suction head 34 can adopt a structure in the prior art. The second negative pressure suction head 34 is connected to an external negative pressure source device, such as an air pump, through a second hose. When the second negative pressure suction head 34 is controlled by the external negative pressure source device to perform a suction action, it can generate an adsorption effect on the packaging bag 7.

[0040] The second guiding assembly 38 includes a second guiding rod and a second guiding hole that are adapted to each other. Both the second guiding rod and the second guiding hole are two and are arranged at intervals. The second guiding hole is provided on the turning plate 32. One end of the second guiding rod is fixedly connected to the second negative pressure suction head 34, and the other end of the second guiding rod passes through the second guiding hole and is in sliding fit therebetween. Thus, it can further guide the movement of the second negative pressure suction head 34 to better ensure the smoothness and smoothness of the movement of the second negative pressure suction head 34. In addition, a second limiting block is fixedly connected to the other end of the second guiding rod.

[0041] The bag mouth opening and adsorbing device 4 includes a second support seat 41, a guiding plate 42, a fourth linear drive member 43 and a third negative pressure suction head 44. The fourth linear drive member 43 is arranged at the upper end of the second support seat 41 and is used to drive the third negative pressure suction head 44 to move horizontally. The guiding plate 42 is fixedly arranged at the upper end of the second support seat 41, and a third guiding assembly 45 is arranged between the third negative pressure suction head 44 and the guiding plate 42.

[0042] The fourth linear drive member 43 can be a fourth hydraulic cylinder, a fourth air cylinder or a fourth electric push rod.

[0043] The third negative pressure suction head 44 can adopt a structure in the prior art. The third negative pressure suction head 44 is connected to an external negative pressure source device, such as an air pump, through a third hose. When the third negative pressure suction head 44 is controlled by the external negative pressure source device to perform a suction action, it can generate an adsorption effect on the packaging bag 7.

[0044] The third guide assembly 45 includes a corresponding third guide rod and a third guide hole. There are two third guide rods and two third guide holes, which are arranged at intervals. The third guide hole is provided on the guide plate 42. One end of the third guide rod is fixedly connected to the third negative pressure adsorption head 44, and the other end of the third guide rod passes through the third guide hole and the two are slidably fitted together, thereby further playing a corresponding guiding role in the movement of the third negative pressure adsorption head 44, so as to better ensure the stability and smoothness of the third negative pressure adsorption head 44 during movement. In addition, the other end of the third guide rod is also fixedly connected to a third limit block.

[0045] The intermittent rotating platform 5 includes a second base 51 and a turntable 52. A rotatable and vertically arranged second rotating shaft 53 is installed on the second base 51 through a second bearing. A second intermittent driving source 54 is provided on the second base 51. The second intermittent driving source 54 is connected to the lower end of the second rotating shaft 53 and is used to drive the second rotating shaft 53 to rotate intermittently by 120 degrees. The turntable 52 is fixedly installed on the upper end of the second rotating shaft 53. The turntable 52 is evenly provided with two cams along its circumference, which are respectively connected to the bag opening. The three circular perforations 521 corresponding to the turntable 52, the three bag opening devices 6 are respectively arranged at the three circular perforations 521 on the turntable 52, thereby facilitating the driving of the packaging bag 7 through the bag opening opening station, the bag filling station and the unloading station in sequence, so as to perform the opening opening and fixing action of the packaging bag 7 in sequence, fill and package the packaging bag 7 with diapers after the bag opening is opened and fixed, and unload the packaging bag 7 packed with diapers.

[0046] The second intermittent reciprocating drive source includes a second servo motor and a second intermittent divider. The motor shaft of the second servo motor is transmission-connected to the input shaft of the second intermittent divider, and the output shaft of the second intermittent divider is transmission-connected to the second rotating shaft 53. By controlling the rotation of the second servo motor and coordinating the use of the second intermittent divider, it is easy to drive the second rotating shaft 53 to perform 120-degree intermittent rotation.

[0047] The bag mouth expanding device 6 includes an expanding plate 61, an annular lifting plate 62, an annular adjusting plate 63, a strip-shaped lifting plate 64, a fifth linear driving member 65, a sixth linear driving member 66, and a tension spring 67. The annular adjusting plate 63 and the annular lifting plate 62 are arranged in sequence from top to bottom and are located above the turntable 52. The annular adjusting plate 63, the annular lifting plate 62, and the circular through hole 521 are coaxially arranged. The fifth linear driving member 65 is arranged on the annular lifting plate 62 and is used to drive the annular adjusting plate 63 to lift. A fourth guiding component 68 is arranged between the annular adjusting plate 63 and the annular lifting plate 62. The expanding plates 61 are multiple and are located inside the annular lifting plate 62 and the annular adjusting plate 63 and are evenly arranged along the circumference of the circular through hole 521. A tapered bag loading cavity with a wider upper part and a narrower lower part is formed by enclosing among the multiple expanding plates 61. The outer peripheral surface of the expanding plate 61 is hinged to the inner peripheral surface of the annular lifting plate 62. A guiding portion 611 and an expanding portion 612 are respectively formed on the upper and lower sides of the expanding plate 61 at the hinge position. The tension springs 67 are multiple and correspond to the multiple expanding plates 61 one by one. Multiple connecting blocks 621 corresponding to the multiple expanding plates 61 one by one are fixedly arranged on the outer peripheral surface of the annular lifting plate 62. One end of the tension spring 67 is connected to the expanding plate 61, and the other end is connected to the connecting block 621. The tension spring 67 is used to always apply an elastic acting force to the expanding plate 61 so that the outer peripheral surface of the expanding plate 61 abuts against the inner peripheral surface of the annular adjusting plate 63, thereby ensuring the stability of the installation positions of the multiple expanding plates 61. The strip-shaped lifting plate 64 is fixedly connected to the annular lifting plate 62. The strip-shaped lifting plate 64 is slidably connected to the fixed shaft 55 up and down through a second linear guide rail slider assembly 69. The fixed shaft 55 is fixedly arranged at the center of the upper end surface of the turntable 52. An installation plate 56 is fixedly arranged at the top of the fixed shaft 55. The sixth linear driving member 66 is arranged on the installation plate 56 and is used to drive the strip-shaped lifting plate 64 to lift.

[0048] Through the arrangement of the second linear guide slider assembly 69, the lifting of the strip-shaped lifting plate 64 can be guided accordingly. When the sixth linear driving member 66 drives the strip-shaped lifting plate 64 to rise, the annular lifting plate 62 and multiple spreading plates 61 can be driven to rise together, and the bag mouth spreading device 6 as a whole is located above the turntable 52. When the bag mouth pulling and adsorbing device 4 and the intermittent reciprocating flipping and adsorbing device 3 initially pull the bag mouth of the packaging bag 7, the spreading plates 61 will not cause interference. After the bag mouth of the packaging bag 7 is initially pulled open, it is convenient to drive the strip-shaped lifting plate 64 to descend through the sixth linear driving member 66, thereby driving the annular lifting plate 62 and multiple spreading plates 61 to descend together, so that the spreading portion 612 of the spreading plate 61 smoothly extends into the bag mouth of the initially pulled open packaging bag 7 after passing through the circular through hole 521 of the turntable 52. Through the arrangement of the fourth guiding assembly 68, the lifting of the annular adjusting plate 63 can be guided accordingly. When the fifth linear driving member 65 drives the annular adjusting plate 63 to rise, the guiding portions 611 on the upper sides of multiple spreading plates 61 can be driven to flip inward synchronously, and the spreading portions 612 on the lower sides of multiple spreading plates 61 can be driven to flip outward, so as to further spread the bag mouth of the packaging bag 7 outward from the bag mouth of the packaging bag 7 and fixedly hold the packaging bag 7. Its overall structure is stable and reliable, and the operation is convenient.

[0049] Preferably, the number of the spreading plates 61 is 3 - 5.

[0050] The fifth linear driving member 65 can adopt a fifth hydraulic cylinder, a fifth air cylinder or a fifth electric push rod, and the sixth linear driving member 66 can adopt a sixth hydraulic cylinder, a sixth air cylinder or a sixth electric push rod.

[0051] The fourth guiding assembly 68 includes a fourth guiding rod and a fourth guiding hole which are adapted to each other. Both the fourth guiding rod and the fourth guiding hole are two and are arranged at intervals. The fourth guiding hole is arranged on the annular adjusting plate 63, the lower end of the fourth guiding rod is fixedly connected to the upper end of the annular lifting plate 62, and the upper end of the fourth guiding rod passes through the fourth guiding hole and is in sliding fit therebetween, thereby further guiding the lifting of the annular adjusting plate 63 accordingly, so as to better ensure the smoothness and smoothness of the annular adjusting plate 63 during lifting. In addition, a fourth limiting block is fixedly connected to the upper end of the fourth guiding rod.

[0052] The second linear guide slider assembly 69 includes a second guide rail and a second slider that are adapted and slidably matched. The second guide rail is fixedly installed in the installation groove on the outer peripheral surface of the fixed shaft 55, and the second slider is fixedly installed at one end of the strip lifting plate 64, thereby effectively ensuring the stability and smoothness of the strip lifting plate 64 and the annular lifting plate 62.

[0053] The inner circumference of the annular adjustment plate 63 is provided with a plurality of guide grooves 631 that are adapted to and correspond one to one with the plurality of support plates 61, thereby playing a corresponding guiding and limiting role in the relative movement between the annular adjustment plate 63 and the support plates 61, so as to further ensure the stability of the plurality of support plates 61 when flipping. In addition, the inner bottom surface of the guide groove 631 is a semicircular arc surface.

[0054] Preferably, the expansion plate 61 is curved and an angle is formed between the expansion portion 612 and the guide portion 611. Thus, when the expansion portion 612 of the expansion plate 61 is expanded outward, the expansion portion 612 can be close to a vertical state to maximize the contact area between the expansion portion 612 and the packaging bag 7. In addition, an anti-slip pad 6121 is fixedly provided on the outer side surface of the expansion portion 612, and a plurality of anti-slip protrusions are fixedly provided on the outer side surface of the anti-slip pad 6121, thereby increasing the friction resistance to the packaging bag 7 when expanded, so as to further ensure that the multiple expansion plates 61 can better expand and fix the packaging bag 7. In addition, the anti-slip pad 6121 is a silicone pad or a rubber pad.

[0055] The method for using the packaging bag conveying mechanism of the automatic diaper packaging machine of the present invention comprises the following steps:

[0056] Step 1: stack several packaging bags 7 and place them in the bag storage cavity 121 of the bag storage frame 12;

[0057] Step 2: The first negative pressure adsorption head 26 is driven upward by the second linear drive member 25 until it contacts the surface of the packaging bag 7 located at the bottom of the storage chamber 121 through the extraction port 123 at the lower end of the storage chamber 121. The first negative pressure adsorption head 26 is then controlled to suction air, thereby adsorbing the packaging bag 7 located at the bottom. The first negative pressure adsorption head 26 is then driven downward by the second linear drive member 25, thereby adsorbing the packaging bag 7 located at the bottom through the extraction port 123 and smoothly extracting it.

[0058] Step 3: The first linear drive member 24 drives the translation seat 23 and the packaging bag 7 adsorbed on the first negative pressure adsorption head 26 to move to the intermittent reciprocating flipping adsorption device 3;

[0059] Step 4: Drive the second negative pressure suction head 34 to move downward through the third linear driving member 33 until it abuts against the surface of the packaging bag 7 adsorbed on the first negative pressure suction head 26. First, control the first negative pressure suction head 26 to stop sucking air to release the adsorption effect of the first negative pressure suction head 26 on the packaging bag 7. Then, control the second negative pressure suction head 34 to suck air, so that the second negative pressure suction head 34 generates an adsorption effect on the packaging bag 7. Then, drive the second negative pressure suction head 34 to move upward through the third linear driving member 33, so that the second negative pressure suction head 34 moves away from the first negative pressure suction head 26 and transfers the packaging bag 7 from the first negative pressure suction head 26 to the second negative pressure suction head 34. Then, drive the translation seat 23 together with the first negative pressure suction head 26 to move back to the position directly below the storage bag frame 12 through the first linear driving member 24;

[0060] Step 5: Drive the first rotating shaft 36 to rotate forward 90 degrees through the first intermittent reciprocating driving source 37, so as to drive the turning plate 32 together with the second negative pressure suction head 34 to turn 90 degrees toward the intermittent rotating table 5. Then, drive the second negative pressure suction head 34 to move toward the side of the bag mouth opening and adsorbing device 4 through the third linear driving member 33 until the second negative pressure suction head 34 is located below the circular perforation 521 at the bag mouth opening and spreading work position;

[0061] Step 6: Drive the third negative pressure suction head 44 to move toward the second negative pressure suction head 34 through the fourth linear driving member 43 until the third negative pressure suction head 44 abuts against the other surface of the packaging bag 7 on the second negative pressure suction head 34. Then, control the third negative pressure suction head 44 to suck air, so that the third negative pressure suction head 44 generates an adsorption effect on the other surface of the packaging bag 7. Then, drive the second negative pressure suction head 34 and the third negative pressure suction head 44 to move away from each other to an appropriate distance through the third linear driving member 33 and the fourth linear driving member 43 respectively, so as to initially open the bag mouth of the packaging bag 7;

[0062] Step 7: Drive the strip-shaped lifting plate 64 together with the annular lifting plate 62 to descend through the sixth linear driving member 66, so that the expanding parts 612 of the plurality of expanding plates 61 extend into the bag opening of the packaging bag 7. Then, drive the annular adjusting plate 63 to rise through the fifth linear driving member 65, thereby driving the guiding parts 611 on the upper sides of the plurality of expanding plates 61 to turn inwards synchronously, and causing the expanding parts 612 on the lower sides of the plurality of expanding plates 61 to turn outwards, so as to further expand the bag opening of the packaging bag 7 outwards from the bag opening of the packaging bag 7 and fixedly hold the packaging bag 7. And during the process of expanding and fixing the packaging bag 7, the second negative pressure suction head 34 and the third negative pressure suction head 44 can be driven by the third linear driving member 33 and the fourth linear driving member 43 to adaptively move away from each other, and then control the second negative pressure suction head 34 and the third negative pressure suction head 44 to stop sucking air, so that the adsorption effects of the second negative pressure suction head 34 and the third negative pressure suction head 44 on the packaging bag 7 are released. Then, continue to drive the second negative pressure suction head 34 and the third negative pressure suction head 44 to move away from each other until they are reset by the third linear driving member 33 and the fourth linear driving member 43 respectively. Then, drive the first rotating shaft 36 to reverse 90 degrees through the first intermittent reciprocating driving source 37, thereby driving the turning plate 32 together with the second negative pressure suction head 34 to turn 90 degrees towards the translation adsorption device 2 side and reset;

[0063] Step 8: Drive the second rotating shaft 53 to intermittently rotate 120 degrees through the second intermittent reciprocating driving source, thereby driving the turntable 52 to intermittently rotate 120 degrees together, so that the bag opening expanding device 6 together with the packaging bag 7 that is expanded and fixed is transferred from the bag opening expanding station to the bagging station. At this time, the disposable diapers to be packaged can be smoothly loaded into the packaging bag 7 through the conical bagging cavity formed between the plurality of expanding plates 61;

[0064] Step 9: Drive the second rotating shaft 53 to intermittently rotate 120 degrees again through the second intermittent reciprocating driving source, thereby driving the turntable 52 to intermittently rotate 120 degrees again, so that the packaging bag 7 containing disposable diapers is transferred to the unloading station. Then, drive the annular adjusting plate 63 to descend through the fifth linear driving member 65, and at the same time cooperate with the elastic force exerted by the tension spring 67, thereby driving the guiding parts 611 on the upper sides of the plurality of expanding plates 61 to turn outwards, and causing the expanding parts 612 on the lower sides of the plurality of expanding plates 61 to turn inwards, so that the expanding parts 612 of the plurality of expanding plates 61 synchronously release the packaging bag 7, so as to unload the packaging bag 7 containing disposable diapers. Then, drive the strip-shaped lifting plate 64 together with the annular lifting plate 62 to rise through the sixth linear driving member 66, so that the expanding parts 612 of the plurality of expanding plates 61 rise and reset above the turntable 52,

[0065] Step Ten: Drive the second rotating shaft 53 to intermittently rotate 120 degrees again through the second intermittent reciprocating driving source, thereby driving the turntable 52 to intermittently rotate 120 degrees together, so that the bag mouth opening device 6 is transferred from the discharging station to the bag mouth opening station for resetting;

[0066] Step Eleven: Repeat Steps Two to Ten in this way, and the automatic continuous conveying of the packaging bag 7 can be achieved.

[0067] The above are only several specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantive modification made to the present invention using this concept shall fall within the scope of infringement of the protection scope of the present invention.

Claims

1. The packaging bag conveying mechanism of a disposable diaper automatic packaging machine, characterized in that: It includes a bag storage device, a translation adsorption device, an intermittent reciprocating flipping adsorption device, a bag mouth pulling adsorption device, an intermittent rotating table and a bag mouth expanding device. Three of the bag mouth expanding devices are evenly arranged along the rotation direction of the intermittent rotating table, and a bag mouth expanding working position, a bag loading working position and a discharging working position are sequentially formed. The bag storage device, the translation adsorption device, the intermittent reciprocating flipping adsorption device and the bag mouth pulling adsorption device are all arranged on one side of the bag mouth expanding working position. The bag storage device is used to store a number of packaging bags stacked and placed. The translation adsorption device is used to adsorb and transfer the lowermost packaging bag in the bag storage device to the intermittent reciprocating flipping adsorption device. The intermittent reciprocating flipping adsorption device is used to transfer the packaging bag transferred by the translation adsorption device to the bag mouth expanding working position of the intermittent rotating table. The bag mouth pulling adsorption device is used to cooperate with the intermittent reciprocating flipping adsorption device and initially pull open the bag mouth of the packaging bag. The bag mouth expanding device is used to extend into the initially pulled open bag mouth of the packaging bag and completely expand the bag mouth of the packaging bag.

2. The packaging bag conveying mechanism of the disposable diaper automatic packaging machine according to claim 1, wherein: The bag storage device includes a first support frame and a bag storage frame fixedly arranged at the upper end of the first support frame. A bag storage cavity penetrating through its upper and lower ends is arranged in the bag storage frame. Placement plates are fixedly arranged on both the left and right sides at the lower end opening of the bag storage cavity. An extraction opening is formed between the two placement plates. The two placement plates are respectively used to support the head and tail sides of the packaging bag.

3. The packaging bag conveying mechanism of the disposable diaper automatic packaging machine according to claim 2, wherein: The translation adsorption device is arranged below the bag storage frame. The translation adsorption device includes a second support frame, a first linear guide rail slider assembly, a translation seat, a first linear driving member, a second linear driving member and a first negative pressure adsorption head. The translation seat is horizontally slidably connected to the upper end of the second support frame through the first linear guide rail slider assembly. The first linear driving member is arranged on one side of the upper end of the second support frame and is used to drive the translation seat to move horizontally. The second linear driving member is arranged on the translation seat and is used to drive the first negative pressure adsorption head to move up and down. A first guiding assembly is arranged between the first negative pressure adsorption head and the translation seat.

4. The packaging bag conveying mechanism of the disposable diaper automatic packaging machine according to claim 3, wherein: A receiving groove adapted to the first negative pressure adsorption head is arranged in the middle of the upper end surface of the translation seat. When the first negative pressure adsorption head is in the receiving groove, the upper end surface of the first negative pressure adsorption head is flush with the upper end surface of the translation seat.

5. The packaging bag conveying mechanism of the disposable diaper automatic packaging machine according to claim 1, wherein: The intermittent reciprocating flipping adsorption device includes a first base, a flip plate, a third linear drive component, and a second negative pressure adsorption head. The first base is fixedly mounted on the first support seat, and a rotatable and laterally arranged first rotating shaft is installed on the first base through a first bearing. A first intermittent reciprocating drive source is provided on the first base, and the first intermittent reciprocating drive source is transmission-connected to one end of the first rotating shaft and is used to drive the first rotating shaft to perform intermittent reciprocating rotation of 90 degrees. The flip plate is fixedly mounted on the other end of the first rotating shaft, and the third linear drive component is provided on the flip plate and is used to drive the second negative pressure adsorption head to move along the radial direction of the first rotating shaft. A second guide assembly is provided between the second negative pressure adsorption head and the flip plate.

6. The bag conveying mechanism of the disposable diaper automatic packaging machine according to claim 1, wherein: The bag opening adsorption device includes a second support seat, a guide plate, a fourth linear drive member and a third negative pressure adsorption head. The fourth linear drive member is arranged at the upper end of the second support seat and is used to drive the third negative pressure adsorption head to move laterally. The guide plate is fixedly arranged at the upper end of the second support seat, and a third guide assembly is provided between the third negative pressure adsorption head and the guide plate.

7. The packaging bag conveying mechanism of the disposable diaper automatic packaging machine according to claim 1, wherein: The intermittent rotating table includes a second base and a turntable, a rotatable and vertically arranged second rotating shaft is installed on the second base through a second bearing, a second intermittent driving source is provided on the second base, the second intermittent driving source is connected to the lower end of the second rotating shaft and is used to drive the second rotating shaft to rotate intermittently 120 degrees, the turntable is fixedly installed on the upper end of the second rotating shaft, and three circular perforations are evenly arranged on the turntable along its circumferential direction, corresponding to the bag opening station, the bagging station and the unloading station respectively.

8. The packaging bag conveying mechanism of the disposable diaper automatic packaging machine according to claim 7, wherein: The bag mouth opening device includes a spreading plate, an annular lifting plate, an annular adjusting plate, a strip-shaped lifting plate, a fifth linear driving member, a sixth linear driving member, and a tension spring. The annular adjusting plate and the annular lifting plate are arranged from top to bottom and are located above the turntable. The annular adjusting plate, the annular lifting plate, and the circular through hole are coaxially arranged. The fifth linear driving member is arranged on the annular lifting plate and is used to drive the annular adjusting plate to lift. A fourth guiding assembly is arranged between the annular adjusting plate and the annular lifting plate. The spreading plates are multiple and are located inside the annular lifting plate and the annular adjusting plate and are evenly arranged along the circumference of the circular through hole. A tapered bag loading cavity with a wider upper part and a narrower lower part is formed by enclosing between the multiple spreading plates. The outer peripheral surface of the spreading plate is hinged to the inner peripheral surface of the annular lifting plate. Guide portions and spreading portions are respectively formed on the upper and lower sides of the spreading plate at the hinge position. The tension springs are multiple and correspond to the multiple spreading plates one by one. Multiple connecting blocks corresponding to the multiple spreading plates one by one are fixedly arranged on the outer peripheral surface of the annular lifting plate. One end of the tension spring is connected to the spreading plate and the other end is connected to the connecting block. The tension spring is used to always apply an elastic acting force to the spreading plate so that the outer peripheral surface of the spreading plate abuts against the inner peripheral surface of the annular adjusting plate. The strip-shaped lifting plate is fixedly connected to the annular lifting plate. The strip-shaped lifting plate is connected to the fixed shaft through a second linear guide rail slider assembly and slides up and down with the fixed shaft. The fixed shaft is fixedly arranged at the center of the upper end surface of the turntable. An installation plate is fixedly arranged at the top end of the fixed shaft. The sixth linear driving member is arranged on the installation plate and is used to drive the strip-shaped lifting plate to lift.

9. The packaging bag conveying mechanism of the disposable diaper automatic packaging machine according to claim 8, characterized in that: The inner peripheral surface of the annular adjusting plate is provided with multiple guide grooves that are adapted to and correspond to the multiple spreading plates one by one. The inner bottom surface of the guide groove is a semi-circular arc surface.

10. The packaging bag conveying mechanism of the disposable diaper automatic packaging machine according to claim 8, characterized in that: The spreading plate is in an arc-shaped bent shape, and an included angle is formed between the spreading portion and the guide portion. An anti-slip pad is fixedly arranged on the outer side surface of the spreading portion, and a plurality of anti-slip bumps are fixedly arranged on the outer side surface of the anti-slip pad.

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