Automatic bag taking posture adjustment method and automatic buckle pressing machine

Abstract

The present invention belongs to the field of automated equipment, and more particularly relates to an automated bag-picking posture adjustment method and an automatic buckle pressing machine. During the process of moving the first and second bag-picking components to a transport mechanism after adsorbing the package bag, the transport adsorption position on the package bag is adjusted in posture, and the periphery of the transport adsorption position is smoothed horizontally and vertically in a manner simulating human hands, to ensure that the transport adsorption position is adjusted to a flat state before the package bag is transported to the transport mechanism, thereby ensuring the transport mechanism's adsorption effect on the package bag and its positioning effect after adsorption, and facilitating the precise positioning of the handle on the package bag without being affected by wrinkles caused by its own surface unevenness.

Description

Technical Field

[0001] The present invention belongs to the field of automation equipment, and in particular relates to an automatic bag taking posture adjustment method and an automatic buckle pressing machine. Background Art

[0002] In daily life, packaging bags used to hold heavy items are often equipped with handles. These handles are typically secured to the bag using snap fasteners. The handles consist of two interlocking fasteners. During assembly, these fasteners are typically assembled manually, through manual positioning, or using a press, resulting in low efficiency.

[0003] To achieve automated production, equipment has emerged that automatically presses two handle fasteners onto bags for assembly. The most important aspect of this equipment is ensuring the precise positioning of the handles to facilitate subsequent press-fit alignment. The typical process for this automated equipment is that bags to be pressed are stacked on a loading mechanism. The bag removal assembly then picks up each bag and moves it to a transport mechanism. The transport mechanism then uses suction elements to hold the bags together and transport them to the pressing station, where the handle fasteners on both sides are pressed together. Since the handles are fixed, the transport mechanism's suction elements are pre-set to ensure precise positioning of the handles after transport.

[0004] However, because packaging bags are inherently soft, their surfaces become uneven when stacked on the loading mechanism. If directly attracted by the suction element on the transport mechanism (most currently using vacuum suction belts), the uneven surface of the bags will cause wrinkles after being attracted. This will ultimately affect the positioning of the handles and cause subsequent lamination failures, ultimately requiring machine downtime for adjustments, significantly impacting automation efficiency. Summary of the Invention

[0005] The present invention provides an automatic bag-taking posture adjustment method, which can simulate manual actions and flatten the packaging bag before it is adsorbed by a transport mechanism, ensuring that the packaging bag is adsorbed in a flat posture, thereby enabling accurate positioning.

[0006] The present invention is achieved through the following technical solutions:

[0007] An automatic bag taking posture adjustment method includes the following steps:

[0008] S1, the first bag taking component and the second bag taking component adsorb the packaging bag around the transportation adsorption position of the packaging bag, wherein the transportation adsorption position is the position where the packaging bag is adsorbed by the transportation adsorption position of the transportation mechanism when being transported on the transportation mechanism;

[0009] S2: The first bag-removing assembly and the second bag-removing assembly jointly pull the packaging bag onto the transport mechanism, so that the suction assembly on the transport mechanism suctions the packaging bag to the transport suction position. When the packaging bag arrives in front of the transport mechanism, the first bag-removing assembly and the second bag-removing assembly adjust the posture of the packaging bag.

[0010] The posture adjustment includes a transverse smoothing action and a longitudinal smoothing action. The transverse smoothing action includes the first bag picking assembly sucking the package bag, and then the left suction group and the right suction group of the first bag picking assembly move away from each other to simulate a transverse pulling action around the transport suction position of the package bag.

[0011] The longitudinal smoothing action includes the second bag taking component adsorbing the packaging bag, and then the second bag taking component moves longitudinally to simulate the longitudinal pulling action around the transportation adsorption position of the packaging bag.

[0012] In the above-mentioned method for adjusting the automatic bag-taking posture, in step S1, the position where the first bag-taking component adsorbs the packaging bag is located on both sides above the transport adsorption position.

[0013] In the above-mentioned method for adjusting the automatic bag-taking posture, in step S1, the position where the second bag-taking component adsorbs the packaging bag is located below the transport adsorption position.

[0014] The above-mentioned method for adjusting the automatic bag-taking posture further includes, in step S1, a third bag-taking component, which is located on the second bag-taking component and is used to absorb the lower end of the packaging bag or a position close to the lower end.

[0015] As described above, an automated bag picking posture adjustment method, the first bag picking component includes a first mounting plate and a first transverse driving mechanism, the first mounting plate is arranged on the bag picking movable seat, the first transverse driving mechanism is arranged on the first mounting plate, and the left adsorption group and the right adsorption group are installed on the first transverse driving mechanism.

[0016] According to the above-mentioned method for adjusting the posture of an automated bag picking, the second bag picking assembly includes a positioning tailstock, a positioning plate, a guide rod, a second suction head group, and a longitudinal movement mechanism;

[0017] The positioning tailstock is installed on the bag-taking moving seat, and a longitudinally extending strip hole is provided on the positioning tailstock;

[0018] The positioning plate is fixedly arranged, and a longitudinally extending clearance hole is provided on the positioning plate;

[0019] The second suction head group is installed at the end of the guide rod;

[0020] The guide rod passes through the clearance hole of the positioning plate, and the tail end passes through the strip hole of the positioning tailstock;

[0021] The longitudinal movement mechanism is mounted on the positioning plate and is used to drive the guide rod and the second suction head group to move longitudinally.

[0022] In the above-mentioned method for adjusting the automatic bag-taking posture, a limiting piece having an outer diameter larger than that of the strip-shaped hole is provided on the guide rod near the tail end, and a reset spring is provided between the limiting piece and the positioning tailstock.

[0023] In the above-mentioned method for adjusting the posture of an automated bag taking operation, the third bag taking assembly includes a third mounting plate, a connecting plate provided on the third mounting plate, and a plurality of suction heads provided on the connecting plate.

[0024] The present invention also provides an automatic button crimping machine, comprising a frame, on which a bag taking component is provided for executing the above-mentioned automatic bag taking posture adjustment method.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] The present invention provides an automated bag-picking posture adjustment method, in which the first bag-picking component and the second bag-picking component adjust the posture of the transport adsorption position on the packaging bag during the process of moving the packaging bag to the transportation mechanism after adsorbing the packaging bag, and perform horizontal and vertical smoothing actions around the transport adsorption position in a manner simulating human hands to ensure that the transport adsorption position of the packaging bag is adjusted to a flat state before being transported to the transportation mechanism, thereby ensuring the adsorption effect of the transportation mechanism on the packaging bag and the positioning effect after adsorption, so that the handle position on the packaging bag can be accurately positioned without being affected by wrinkles caused by the uneven surface of the bag itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0028] Figure 1 is a bag taking component structure corresponding to an automatic bag taking posture adjustment method of the present invention.

[0029] Construction diagram;

[0030] Figure 2 is a schematic diagram of the cooperation between the packaging bag and the bag removal component before the posture of the packaging bag is adjusted;

[0031] FIG3 is a schematic diagram of the packaging bag in FIG2 after adjusting its posture;

[0032] FIG4 is a schematic diagram of the bag taking component in FIG2 after adjusting its posture;

[0033] FIG5 is a schematic diagram of the bag taking assembly in FIG2 from another angle;

[0034] FIG6 is an exploded view of the structure of the second bag taking assembly in FIG5. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] The present invention is achieved through the following technical solutions:

[0037] As shown in Figures 1 to 6, an automatic bag-taking posture adjustment method includes the following steps: S1, a first bag-taking component 31 and a second bag-taking component 32 adsorb the packaging bag 9 around the transport adsorption position of the packaging bag 9, wherein the transport adsorption position is the position where the packaging bag is adsorbed by the transport adsorption position of the transportation mechanism when being transported on the transportation mechanism; S2, the first bag-taking component 31 and the second bag-taking component 32 jointly pull the packaging bag 9 onto the transportation mechanism, so that the adsorption components on the transportation mechanism adsorb the transportation adsorption position of the packaging bag 9, and before the packaging bag 9 reaches the transportation mechanism, the first bag-taking component 31 and the second bag-taking component 32 adjust the posture of the packaging bag 9; the posture adjustment includes a lateral smoothing action and a longitudinal smoothing action, and the lateral smoothing action includes, after the first bag-taking component 31 adsorbs the packaging bag 9, the left adsorption group 311 and the right adsorption group 312 of the first bag-taking component 31 perform a relative distance movement to simulate a lateral pulling action around the transport adsorption position of the packaging bag 9; The longitudinal smoothing action involves the second bag-removing assembly 32 moving longitudinally after it has attracted the bag 9, simulating a longitudinal pulling motion around the transport attachment point of the bag 9. This method involves adjusting the position of the transport attachment point on the bag as the first and second bag-removing assemblies move to the transport mechanism after attracting the bag. This method simulates human hands, performing both horizontal and longitudinal smoothing actions around the transport attachment point to ensure the transport attachment point is flat before the bag is transported to the transport mechanism. This ensures that the transport attachment point is effectively attracted by the transport mechanism and positioned properly after attraction. This ensures that the handle on the bag is precisely positioned, unaffected by wrinkles caused by surface irregularities.

[0038] Furthermore, as shown in Figure 2, in step S1, the first bag-removing assembly 31 suctions the bag 9 to both sides above the transport suction position. Furthermore, in step S1, the second bag-removing assembly 32 suctions the bag 9 to below the transport suction position. To account for the potential unevenness of the bag surface (the curved area within the bag in Figure 2), and after adjustment as shown in Figure 3, this method only requires ensuring a flat transport suction position to achieve precise positioning on the automated equipment. Therefore, this method only requires suction around the transport suction position. In this solution, suction is applied to the upper and lower sides of the transport suction position.

[0039] In addition, in order to accommodate packaging bags of different sizes, this solution further includes a third bag taking component 33 in step S1. The third bag taking component 33 is located in the second bag taking component 32 and is used to absorb the lower end of the packaging bag 9 or a position close to the lower end.

[0040] Furthermore, in step S2, the lateral smoothing action is performed synchronously with the longitudinal smoothing action, that is, no matter whether the posture of the transport adsorption position is concave or convex, it is ensured to become a flat posture by pulling horizontally and longitudinally.

[0041] In an embodiment of the present invention, the specific structure of the bag-taking mechanism corresponding to this method is as follows: it includes a base 3 and a bag-taking movable seat 301 provided on the base 3; in this solution, the bag-taking movable seat 301 is used to move toward the feeding mechanism to remove a single packaging bag from the feeding mechanism, but as mentioned in the background technology, when the packaging bags are hung in a stacked manner, their surfaces are prone to unevenness.

[0042] Based on this, the embodiment of the present invention further includes a first bag-removing assembly 31 disposed on the bag-removing movable base 301, which is movable with the bag-removing movable base 301 relative to the loading mechanism. The assembly comprises a left suction group 311 and a right suction group 312, which are movable relative to each other on the bag-removing movable base 301. A second bag-removing assembly 32, located below the first bag-removing assembly 31, is movable with the bag-removing movable base 301 relative to the loading mechanism and is movable longitudinally on the bag-removing movable base 301. As the first and second bag-removing assemblies move after absorbing the bag, the first assembly can pull and smooth the suction area horizontally, and the second assembly can pull and smooth the suction area longitudinally. This smoothing action simulates a human hand, ensuring that the suction area is flat before the bag is transported to the transport mechanism, facilitating precise positioning of the handle.

[0043] Specifically, in this embodiment of the present invention, the first bag-removing assembly 31 is used to absorb the upper portion of the transport suction position of the packaging bag. After absorption, the left suction group 311 and the right suction group 312 are moved laterally away from each other. Its specific structure is as shown in Figure 4. It includes a first mounting plate 310 and a first transverse drive mechanism 313. The first mounting plate 310 is mounted on the bag-removing movable base 301, and the first transverse drive mechanism 313 is mounted on the first mounting plate 310. The left suction group 311 and the right suction group 312 are mounted on the first transverse drive mechanism 313. In this solution, the lateral movement of the left suction group 311 and the right suction group 312 relative to each other simulates the action of a human hand leveling a recessed position, thereby causing the transport suction position to be pulled laterally.

[0044] Furthermore, in this embodiment of the present invention, the left suction group 311 includes a left mounting plate 3110 and a left suction head 3111 disposed on the left mounting plate 3110. The right suction group 312 includes a right mounting plate 3120 and a right suction head 3121 disposed on the right mounting plate 3120. The first transverse drive mechanism 313 can be a pneumatic cylinder, which drives the left mounting plate 3110 and the right mounting plate 3120 to move relative to each other simultaneously to achieve the above-mentioned movements.

[0045] In addition, in the embodiment of the present invention, two of the left suction head 3111 and the right suction head 3121 are provided, so that more points on the packaging bag can be adsorbed, thereby preventing detachment.

[0046] Furthermore, to facilitate adjustment of the suction position, in this embodiment of the present invention, the left mounting plate 3110 is provided with a longitudinally extending elongated adjustment hole, into which the left suction head 3111 is secured. This allows for use with packaging bags of varying sizes, greatly enhancing the product's applicability.

[0047] To simplify the structure, an elastic return member is provided between the left mounting plate 3110 and the right mounting plate 3120. After the first transverse drive mechanism 313 releases force, the elastic return member allows the left and right mounting plates 3110, 3120 to quickly move away from each other. The aforementioned effect is achieved by matching the elastic force of the elastic return member with the suction force of the nozzle. This simple structure simplifies the overall machine.

[0048] In the embodiment of the present invention, the second bag-taking assembly 32 is mainly used to pull the packaging bag longitudinally, and its specific structure is as follows: including a positioning tailstock 321, a positioning plate 322, a guide rod 323, a second suction head group 324 and a longitudinal moving mechanism 325;

[0049] The positioning tailstock 321 is mounted on the bag-removing movable base 301 and is provided with a longitudinally extending strip hole 3211. The positioning plate 322 is fixed and provided with a longitudinally extending clearance hole 3221. The second suction head assembly 324 is mounted on the end of the guide rod 323. The guide rod 323 passes through the clearance hole 3221 of the positioning plate 322, and its tail end passes through the strip hole 3211 of the positioning tailstock 321. The longitudinal movement mechanism is mounted on the positioning plate 322 and is used to drive the guide rod 323 and the second suction head assembly 324 in longitudinal motion. The mechanism works by moving the second suction head assembly 324 up and down after the second suction head assembly 324 has attracted the bag, thereby pulling the bag longitudinally.

[0050] More specifically, the second suction head group 324 includes multiple suction heads, three in this embodiment, connected to the guide rod 323 via a connecting base. Furthermore, in this embodiment, the guide rod 323 faces the suction heads in the middle, and a second guide rod is provided on each suction head on one side to enhance the stability of the second suction head group 324 during its vertical movement.

[0051] Furthermore, since the position of a bag changes as the bag-removing mechanism removes it from the loading mechanism, to ensure that the second bag-removing assembly can smoothly contact the bag surface for suction, a stopper having an outer diameter greater than the strip-shaped hole 3211 is provided near the tail end of the guide rod 323. A return spring is also provided between the stopper and the positioning tailstock 321. Thus, as the bag-removing movable seat 301 drives the second bag-removing assembly toward the bag, until the second bag-removing assembly contacts the bag, the return spring causes the second bag-removing assembly to be restrained by the bag as the bag-removing movable seat 301 continues to move, acting as a compression spring at the tail end, which maintains the pressure on the second bag-removing assembly against the bag surface.

[0052] In addition, in this solution, in order to facilitate the removal of larger packaging bags without unrestricted lower ends, the bag removal mechanism further includes a third bag removal component 33 provided on the bag removal movable seat 301 , and the third bag removal component 33 is located below the second bag removal component 32 .

[0053] Specifically, the structure of the third bag taking assembly 33 is similar to that of the first bag taking assembly, and includes a third mounting plate 331 , a connecting plate 332 disposed on the third mounting plate 331 , and a plurality of suction heads 333 disposed on the connecting plate 332 .

[0054] Moreover, in order to facilitate adjustment, the connecting plate 332 is provided with a plurality of transversely extending adjustment holes, and the suction head 333 is fixed in the adjustment holes, so that appropriate adjustment can be made according to packaging bags of different specifications to ensure the adsorption effect.

[0055] The present invention also provides an automatic button pressing machine, which has the above-mentioned bag taking component and is suitable for the above-mentioned adjustment method, and thus also has corresponding beneficial effects.

[0056] The present invention provides an automated bag-picking posture adjustment method, in which the first bag-picking component and the second bag-picking component adjust the posture of the transport adsorption position on the packaging bag during the process of moving the packaging bag to the transportation mechanism after adsorbing the packaging bag, and perform horizontal and vertical smoothing actions around the transport adsorption position in a manner simulating human hands to ensure that the transport adsorption position of the packaging bag is adjusted to a flat state before being transported to the transportation mechanism, thereby ensuring the adsorption effect of the transportation mechanism on the packaging bag and the positioning effect after adsorption, so that the handle position on the packaging bag can be accurately positioned without being affected by wrinkles caused by the uneven surface of the bag itself.

[0057] The above descriptions provide one or more specific implementations, and the specific implementation of the present invention is not limited to these descriptions. Any similarity or similarity to the methods and structures of the present invention, or any technical deductions or substitutions based on the concepts of the present invention, shall be considered within the scope of protection of the present invention.

Claims

1. A method for adjusting the posture of an automated bag-taking machine, characterized in that: The steps include: S1. The first bag-removing assembly and the second bag-removing assembly adsorb the packaging bag around the transport adsorption position of the packaging bag, wherein the transport adsorption position is the position where the packaging bag is adsorbed by the transport adsorption position of the transport mechanism when being transported on the transport mechanism, the position where the first bag-removing assembly adsorbs the packaging bag is located on both sides above the transport adsorption position, and the position where the second bag-removing assembly adsorbs the packaging bag is located below the transport adsorption position; S2: The first bag-taking assembly and the second bag-taking assembly jointly pull the packaging bag onto the transport mechanism, so that the adsorption assembly on the transport mechanism adsorbs the packaging bag at the transport adsorption position. When the packaging bag arrives in front of the transport mechanism, the first bag-taking assembly and the second bag-taking assembly adjust the posture of the packaging bag. The posture adjustment includes a transverse smoothing action and a longitudinal smoothing action. The transverse smoothing action includes the first bag picking assembly sucking the packaging bag, and then the left suction group and the right suction group of the first bag picking assembly move away from each other to simulate a transverse pulling action around the transportation suction position of the packaging bag. The longitudinal smoothing action includes the second bag taking component sucking the packaging bag, and then the second bag taking component moves longitudinally to simulate the longitudinal pulling action around the transportation suction position of the packaging bag; The first bag taking assembly includes a first mounting plate and a first transverse driving mechanism. The first mounting plate is provided on the bag taking movable seat. The first transverse driving mechanism is provided on the first mounting plate. The left adsorption group and the right adsorption group are installed on the first transverse driving mechanism. The second bag-taking assembly includes a positioning tailstock, a positioning plate, a guide rod, a second suction head group, and a longitudinal moving mechanism; The positioning tailstock is installed on the bag-taking moving seat, and a longitudinally extending strip hole is provided on the positioning tailstock; The positioning plate is fixedly arranged, and a longitudinally extending clearance hole is provided on the positioning plate; The second suction head group is installed at the end of the guide rod; The guide rod passes through the clearance hole of the positioning plate, and the tail end passes through the strip hole of the positioning tailstock; The longitudinal movement mechanism is installed on the positioning plate and is used to drive the guide rod and the second suction head group to move longitudinally.

2. The method for adjusting the automatic bag-taking posture according to claim 1, characterized in that: In step S1, a third bag-taking component is also included. The third bag-taking component is located on the second bag-taking component and is used to absorb the lower end of the packaging bag or a position close to the lower end.

3. The method for adjusting the automatic bag-taking posture according to claim 1, characterized in that: In step S2, the transverse smoothing action and the longitudinal smoothing action are performed synchronously.

4. The method for adjusting the automatic bag-taking posture according to claim 1, characterized in that: A limiting piece with an outer diameter larger than that of the strip-shaped hole is provided on the guide rod near the tail end, and a reset spring is provided between the limiting piece and the positioning tailstock.

5. The method for adjusting the automatic bag-taking posture according to claim 2, characterized in that: The third bag taking assembly includes a third mounting plate, a connecting plate arranged on the third mounting plate, and a plurality of suction heads arranged on the connecting plate.

6. An automatic button crimping machine, characterized in that: The invention comprises a frame on which a bag taking component for executing an automatic bag taking posture adjustment method as claimed in any one of claims 1 to 5 is provided.

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