Paper bag feeding mechanism for paper bag packaging equipment

Abstract

The utility model relates to a paper bag feeding mechanism for paper bag packaging equipment, which comprises a frame provided with a feeding component for stacking paper bags. The suction cup assembly comprises a suction cup used for sucking the paper bags placed on the feeding assembly and a suction cup movement mechanism used for driving the suction cup to move. The feeding assembly comprises a feeding driving mechanism and a conveying belt driven by the feeding driving mechanism to rotate circularly, the side, close to the position where the suction cup is located, of the conveying belt is marked as a paper bag discharging side, and the side, away from the position where the suction cup is located, of the conveying belt is marked as a paper bag feeding side. Paper bags stacked on the conveying belt are conveyed from the paper bag feeding side to the paper bag discharging side through the conveying belt. The paper bag feeding device has the advantages that supplementing operation of paper bags becomes relatively convenient, the packaging rhythm of paper bag packaging equipment is not affected, and the overall packaging efficiency of the paper bag packaging equipment is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper bag packaging equipment technical field especially, relate to a paper bag feeding mechanism for paper bag packaging equipment. BACKGROUND

[0002] Many foods on the existing market are filled with metal cans, and a thin cover body (also called "thin cover") is arranged on the can mouth of the metal can. In order to reduce the pollution of the cover body during transportation, a certain number of cover bodies need to be stacked and stacked to form a cylinder after being processed, and then transported to a paper bag packaging equipment for packaging with a paper bag on the paper bag packaging equipment.

[0003] For example, a Chinese invention patent application with application number CN202011593099.2 (authorized publication number CN112660496B) discloses a paper bag packaging machine, which includes a rack, a storage bin, a suction cup assembly, a blocking piece, a guide assembly, a feeding device and a material receiving device. The storage bin is used to place the stacked paper bags. The feeding device is upstream of the processing position, the suction cup assembly is located below the storage bin material port, the blocking piece is at least partially located on the moving path of the paper bag, and the guide assembly has two guide pieces. The paper bag in the storage bin is taken out by the suction cup in the suction cup assembly, the blocking piece contacts the extending edge of the bag mouth when the paper bag moves downward, the two sides of the bag mouth are opened, and the two guide pieces of the guide assembly act on the two side edges of the bag mouth when the cover body moves to the state of being located in the guide channel. The two side edges of the bag mouth are away from each other and are in an open state. The suction cup moves upward under the drive of the first drive, the suction cup connects to the external negative pressure source and generates negative pressure, and the paper bag at the material port of the storage bin is sucked. Then the first drive drives the suction cup to drive the paper bag to move downward to the outlet of the guide channel. In the process of moving downward, the extending edge of the bag mouth touches the blocking piece and is in the "half-open" state mentioned above.

[0004] However, the above-mentioned paper bag packaging machine still has some deficiencies. First of all, the storage bin is provided with a discharge port at the bottom for the suction cup to suck out the paper bag downward. In the process of sucking out the paper bag downward by the suction cup, multiple paper bags are easily sucked out downward due to air flow suction force, causing waste of paper bags, and even affecting the normal feeding of paper bags. Secondly, due to the way of moving downward by the suction cup to take out the paper bag, the storage bin for placing the paper bag needs to be placed at a relatively high position of the equipment, which requires manual climbing to replenish the material, i.e. making the replenishment operation of the paper bag relatively difficult and affecting the overall packaging efficiency of the paper bag packaging machine. UTILITY MODEL CONTENTS

[0005] The first technical problem to be solved by the utility model is to provide a paper bag feeding mechanism for a paper bag packaging equipment which facilitates the replenishment of paper bags in view of the status of the prior art.

[0006] The second technical problem to be solved by the utility model is to provide a paper bag feeding mechanism for a paper bag packaging device, which can ensure that the paper bags are stably taken out and avoid the problem of taking out too many paper bags.

[0007] The technical scheme adopted by the utility model to solve the above first technical problem is as follows: a paper bag feeding mechanism for a paper bag packaging device, comprising:

[0008] a rack, wherein the rack is provided with a feeding assembly for stacking and placing paper bags;

[0009] a suction disc assembly, comprising a suction disc for sucking the paper bags placed on the feeding assembly and a suction disc movement mechanism for driving the suction disc to move;

[0010] The feeding assembly comprises a feeding drive mechanism and a conveying belt driven to rotate circularly by the feeding drive mechanism, one side of the conveying belt adjacent to the position of the suction disc is recorded as a paper bag unloading side, and the side far away from the position of the suction disc is recorded as a paper bag loading side, and the paper bags stacked and placed on the conveying belt are conveyed from the paper bag loading side to the paper bag unloading side by the conveying belt.

[0011] In order to facilitate the placement of paper bags and avoid the problem of skewing or scattering of the stacked paper bags during conveying by the conveying belt, the conveying belt is provided with partitions extending outward from the conveying belt and arranged in sequence and at intervals along the length direction of the conveying belt, and the gap between the two adjacent partitions on the conveying belt constitutes a storage compartment for storing a stack of paper bags.

[0012] In order to accurately limit the placement position of the paper bags on the conveying belt and ensure that the paper bags on the conveying belt can be effectively sucked by the suction disc, a limiting plate and a material pushing plate assembly are further included, the limiting plate is located on one side of the width direction of the conveying belt and arranged in vertical extension, and the material pushing plate assembly is located above the conveying belt and comprises a rotating rod extending in the transverse direction and a push plate arranged in sequence along the length direction of the rotating rod, each push plate can push the paper bags placed in each storage compartment towards the side where the limiting plate is located by rotating the rotating rod.

[0013] In order to drive the rotating rod to rotate and move the stacked paper bags in each storage compartment to the set position by the push rods, the material pushing plate assembly further comprises a rotating drive mechanism for driving the rotating rod to rotate.

[0014] Generally, the above-mentioned rotating drive mechanism can adopt a driving motor, a linear drive element or the like driving mechanism, when a driving motor is adopted, the driving motor can be directly connected with the rotating rod or indirectly connected through other transmission components (such as a gear assembly, a chain wheel assembly or a belt transmission assembly), preferably, the rotating drive mechanism comprises a first linear drive cylinder and a swing arm connected with the rotating rod, the main body of the first linear drive cylinder is rotatably arranged on the rack, and the output end of the first linear drive cylinder is rotatably connected with the swing arm.

[0015] The utility model solves the technical scheme that the above-mentioned second technical problem adopts: the suction cup movement mechanism includes the lifting movement mechanism, the suction cup can be driven by lifting movement mechanism and move upwards after the paper bag on the feeding assembly is inhaled.

[0016] When the cover enters the paper bag for packaging, considering that the paper bag in the inclined state is more convenient for stacking the cover into the paper bag for packaging, in order to meet the need of paper bag posture adjustment, preferably, the power output end of the lifting movement mechanism is further provided with a rotary cylinder and a suction cup support connected to the power output end of the rotary cylinder, the suction cup support can be rotated around the horizontal axis by the rotary cylinder, and the suction cup support comprises four downward extending support rods, and the bottom end of each of the four support rods is provided with the suction cup.

[0017] In order to facilitate the movement of the paper bag to the corresponding packaging station, the suction cup movement mechanism further comprises a longitudinal movement mechanism arranged on the rack and a transverse movement mechanism arranged on the power output end of the longitudinal movement mechanism, and the lifting movement mechanism is arranged on the power output end of the transverse movement mechanism and can be reciprocally moved along the transverse direction by the transverse movement mechanism.

[0018] In order to simplify the structure of the longitudinal movement mechanism and the transverse movement mechanism, as an improvement, the rack comprises two trusses extending longitudinally and a sliding frame arranged between the two trusses in the transverse direction, the longitudinal movement mechanism comprises a longitudinal movement cylinder, the sliding frame is driven by the longitudinal movement cylinder to reciprocate along the truss, the transverse movement mechanism comprises a transverse movement cylinder arranged on the sliding frame, the output end of the transverse movement cylinder is provided with a first fixed plate, the lifting movement mechanism comprises a lifting cylinder and a second fixed plate arranged on the output end of the lifting cylinder, the lifting cylinder is arranged on the first fixed plate, and the rotary cylinder is arranged on the second fixed plate.

[0019] In order to drive the conveying belt to rotate, the feeding driving mechanism comprises a feeding driving motor and two feeding rollers arranged in parallel in the transverse direction, the conveying belt is arranged between the two feeding rollers and is driven to rotate by the feeding rollers, and the feeding driving motor is in driving connection with one of the feeding rollers.

[0020] Compared with the prior art, the paper bag placed on the conveying belt of the feeding assembly can be conveyed from the paper bag loading side away from the suction disc position to the paper bag unloading side adjacent to the suction disc position, so that after the loading of the last stack of paper bags is completed, the next stack of paper bags can be correspondingly conveyed to fill the position, and the operator only needs to supplement the paper bags at the paper bag loading side, which makes the supplementing operation of the paper bags relatively convenient and does not affect the packaging rhythm of the paper bag packaging equipment, thereby ensuring the overall packaging efficiency of the paper bag packaging equipment. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a perspective structural schematic view of the paper bag packaging equipment of the embodiment of the utility model;

[0022] Figure 2 It is a left view of the paper bag packaging equipment of the embodiment of the utility model;

[0023] Figure 3 It is a perspective structural schematic view of the paper bag feeding mechanism of the embodiment of the utility model;

[0024] Figure 4 It is a perspective structural schematic view of the paper bag feeding mechanism of the embodiment of the utility model from another angle;

[0025] Figure 5 It is a perspective structural schematic view of the suction disc assembly of the embodiment of the utility model;

[0026] Figure 6 It is a left view of the suction disc assembly of the embodiment of the utility model. DETAILED DESCRIPTION

[0027] The utility model will be further described in detail below in combination with the embodiment of the drawings.

[0028] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0029] Figures 1-6 This invention illustrates a preferred embodiment of the paper bag packaging equipment and the paper bag feeding device for the paper bag packaging equipment. The paper bag packaging equipment generally includes a counting device 20, a feeding device 30, a packaging device 40, a paper bag feeding device, and a receiving device. The counting device 20 is used to quantitatively count the caps b during the feeding process. After counting, a stack of caps b is pushed to the packaging position 100 by the feeding device 30. The packaging device 40 is used to deliver the stacked caps b into the paper bag a located at the packaging position 100 and seal the paper bag a. After sealing, the paper bag a is unloaded by the receiving mechanism. The counting device of the paper bag packaging equipment can adopt conventional lid counting devices such as infrared counting sensors, as disclosed in application CN202322600194.6, "A Counting and Conveying Device for Lids b". The packaging and receiving devices of the paper bag packaging equipment can also adopt existing technologies, such as the corresponding device or equipment in Chinese invention patent application CN202011593099.2 (authorization announcement number: CN112660496B), "A Paper Bag a Packaging Machine", which will not be elaborated further. The paper bag feeding device used in the paper bag packaging equipment is the main inventive point of this utility model, and its structure and working process are described in detail below.

[0030] The paper bag feeding device for paper bag packaging equipment includes a frame 10, a feeding assembly mounted on the frame 10, and a suction cup assembly. The frame 10 is a support frame that provides support for the feeding assembly and the suction cup assembly. Specifically, the feeding assembly can stack paper bags a and convey paper bags a to the packaging position 100 adjacent to the frame 10.

[0031] The feeding assembly includes a feeding drive mechanism 901 and a conveyor belt 91 that is driven by the feeding drive mechanism 901 to rotate cyclically.

[0032] The vertically stacked paper bags a can be placed on the conveying belt 91. In particular, in order to facilitate the placement of the paper bags a and avoid the problem of the stacked paper bags a being skewed or scattered during the conveying by the conveying belt 91, the conveying belt 91 has baffle plates 911 extending outwardly from the conveying belt 91 and arranged in sequence and spaced apart along the length direction of the conveying belt 91, the extending direction of the baffle plates 911 being perpendicular to the conveying direction of the conveying belt 91, and the gap between two adjacent baffle plates 911 on the conveying belt 91 forming a storage compartment 910. One stack of paper bags a can be placed in each storage compartment 910. The side of the conveying belt 91 adjacent to the position of the suction cups 640 is referred to as the paper bag unloading side, and the side away from the position of the suction cups 640 is referred to as the paper bag loading side. The paper bags a placed in a stack on the conveying belt 91 are conveyed by the conveying belt 91 from the paper bag loading side to the paper bag unloading side.

[0033] The feeding drive mechanism of the embodiment includes a feeding drive motor 901 and two feeding rollers 902 arranged side by side in the transverse direction, the conveying belt 91 being wound between the two feeding rollers 902 and driven to rotate by the feeding rollers 902. The feeding drive motor 901 is drivingly connected to one of the feeding rollers 902 through a gear transmission mechanism, a belt transmission mechanism or a chain transmission mechanism, so as to drive the conveying belt 91 to rotate cyclically. Among them, the feeding roller 902 drivingly connected to the feeding drive motor is the driving roller, and the other feeding roller 902 is the driven roller.

[0034] In order to accurately limit the placement position of the paper bags a on the conveying belt 91, so as to ensure that the paper bags a on the conveying belt 91 can be effectively sucked by the suction cups 640, the rack 10 is further provided with a limiting plate 92 and a poking plate assembly, wherein the limiting plate 92 is located on one side of the conveying belt 91 in the width direction and is arranged vertically. The poking plate assembly is located above the conveying belt 91 and includes a rotating rod 94 extending in the transverse direction and push plates 93 arranged in sequence along the length direction of the rotating rod 94, each push plate 93 corresponding to each storage compartment 910 on the conveying belt 91. When the rotating rod 94 is driven to rotate by a rotating drive mechanism 95, each push plate 93 also rotates with the rotating rod 94, so as to push the paper bags a placed in each storage compartment 910 towards the side where the limiting plate 92 is located, until the side of the paper bags a in each storage compartment 910 abuts against the limiting plate 92. After the paper bags a are moved into position, the rotating drive mechanism 95 drives the rotating rod 94 and the push rod to rotate reversely (i.e. upward), so that each push plate 93 moves away from the corresponding storage compartment 910. In this way, when the conveying belt 91 is conveying, the baffle plates 911 on the conveying belt 91 will not interfere with the push plates 93. After the stack of paper bags a in the storage compartment 910 on the unloading side of the conveying belt 91 are all sucked away, the conveying belt 91 moves the stack of paper bags a in the next storage compartment 910 to the unloading side position, so as to be taken by the suction cup assembly at the fixed position.

[0035] Generally, the rotating driving mechanism 95 can be a driving motor, a linear driving member or the like. When a driving motor is used, the driving motor can be directly connected to the rotating rod 94 or indirectly connected to the rotating rod 94 through other transmission components (e.g., a gear assembly, a chain wheel assembly or a belt transmission assembly). In a preferred embodiment, the rotating driving mechanism 95 includes a first linear driving cylinder and a swing arm 941 connected to the rotating rod 94. The end of the main body of the first linear driving cylinder, which is away from the output end, is rotatably connected to the frame 10, and the output end of the first linear driving cylinder is rotatably connected to the swing arm 941. When the first linear driving cylinder is extended or retracted, the swing arm 941 can drive the rotating rod 94 and the push plates 93 on the rotating rod 94 to rotate.

[0036] The frame 10 is provided with a plurality of suspension rods 15 above the conveying belt 91, and the limiting plates 92 are fixed to the suspension rods 15. The poking plate assembly is provided on a fixed plate 942, which is parallel to the limiting plates 92 and is also fixed to the suspension rods 15.

[0037] The suction cup assembly comprises a suction cup 640 for sucking the paper bag a placed on the feeding assembly (i.e. the conveying belt 91) and a suction cup moving mechanism for driving the suction cup 640 to move. The suction cup moving mechanism comprises a longitudinal moving mechanism, a transverse moving mechanism and a lifting moving mechanism. The longitudinal moving mechanism is arranged on the frame 10, specifically, the frame 10 comprises two longitudinally extending trusses and a sliding frame 610 arranged between the two trusses in the transverse direction, the longitudinal moving mechanism comprises a longitudinal moving cylinder 61, the sliding frame 610 is driven by the longitudinal moving cylinder 61 to reciprocate along the trusses, and the longitudinal moving cylinder 61 can be a conventional rodless cylinder. The "longitudinal direction" is consistent with the width direction of the conveying belt 91, and the "transverse direction" is consistent with the conveying direction of the conveying belt 91. The transverse moving mechanism is arranged on the power output end of the longitudinal moving mechanism, specifically, the transverse moving mechanism is a transverse moving cylinder 62, which can also be a rodless cylinder arranged on the sliding frame 610. A first fixed plate 942 is arranged on the output end of the transverse moving cylinder 62, and the lifting moving mechanism is arranged on the power output end of the transverse moving mechanism and can be driven by the transverse moving mechanism to reciprocate in the transverse direction. Specifically, the lifting moving mechanism comprises a lifting cylinder and a second fixed plate 942 arranged on the output end of the lifting cylinder, wherein the lifting cylinder is arranged on the first fixed plate 942. A rotary cylinder 632 is arranged on the second fixed plate 942 of the output end of the lifting cylinder, a suction cup support 64 is arranged on the power output end of the rotary cylinder 632, the suction cup support 64 comprises four downwardly extending support rods 641, and the bottom ends of the four support rods 641 are each provided with a suction cup 640. The paper bag a in the flat state is a quadrilateral structure, and the positions of the four suction cups 640 can correspond to the positions of the four corners of the flat paper bag a. The suction cup support 64 can be driven by the rotary cylinder 632 to rotate around the transversely extending axis, so as to adjust the posture of the suctioned paper bag a to a suitable inclination angle, thereby facilitating the cover b stacked upstream to enter the paper bag a. The above-mentioned suction cup 640 can use a negative pressure generator or a vacuum system to provide negative pressure, and a sealing mechanism is used to maintain the stability of the negative pressure. The suction cup 640 cooperates with the suction cup moving mechanism to enable the suction cup 640 to stably suck and transfer the paper bag a to a fixed point.

[0038] When the suction cup assembly sucks the paper bag a on the conveying belt 91, the rotary cylinder 632 drives the suction cup support 64 to rotate, so that the four suction cups 640 are substantially in the same horizontal plane. After sucking the paper bag a, the suction cup 640 can be driven by the lifting moving mechanism to move upward. Since the gravity of the paper bag a, the remaining paper bags a except the top one sucked by the suction cup 640 will not be easily taken out upward, thereby avoiding the waste of the paper bags a.

Claims

1. A paper bag feeding mechanism for a paper bag packaging apparatus, comprising: a frame (10) having a feeding assembly on which a stack of paper bags (a) is placed; a suction disc assembly including a suction disc (640) for sucking a paper bag (a) placed on the feeding assembly and a suction disc moving mechanism for moving the suction disc (640); characterized in that the feeding assembly includes a feeding driving mechanism (90) and a conveying belt (91) driven to rotate circularly by the feeding driving mechanism (90), a side of the conveying belt (91) adjacent to a position where the suction disc (640) is located is defined as a paper bag unloading side, a side of the conveying belt (91) away from the position where the suction disc (640) is located is defined as a paper bag loading side, and a stack of paper bags (a) placed on the conveying belt (91) is conveyed from the paper bag loading side to the paper bag unloading side by the conveying belt (91). The conveying belt (91) has partitions (911) extending outwardly from the conveying belt (91) and arranged in sequence along a length direction of the conveying belt (91), and a gap between two adjacent partitions (911) on the conveying belt (91) forms a storage compartment (910) for storing a stack of paper bags (a). Further comprising a limiting plate (92) located on one side of the conveying belt (91) in a vertical direction and a pushing plate assembly located above the conveying belt (91) and including a rotating rod (94) extending in a transverse direction and push plates (93) arranged in sequence along a length direction of the rotating rod (94), each push plate (93) being able to push a stack of paper bags (a) placed in each storage compartment (910) toward a side where the limiting plate (92) is located by rotating with the rotating rod (94). The pushing plate assembly further includes a rotating driving mechanism (95) for driving the rotating rod (94) to rotate.

2. The paper bag feeding mechanism for a paper bag packaging apparatus according to claim 1, characterized by: The rotating driving mechanism (95) includes a first linear driving cylinder and a swing arm (941) connected to the rotating rod (94), a main body of the first linear driving cylinder being rotatably arranged on the frame (10), and an output end of the first linear driving cylinder being rotatably connected to the swing arm (941).

3. The paper bag feeding mechanism for a paper bag packaging apparatus according to claim 2, characterized by: The suction disc moving mechanism includes a lifting moving mechanism, and the suction disc (640) is able to be lifted upward by the lifting moving mechanism after sucking a paper bag (a) on the feeding assembly.

4. The paper bag feeding mechanism for a paper bag packaging apparatus according to claim 3, characterized by: A rotary cylinder (632) is further arranged on a power output end of the lifting moving mechanism, and a suction disc support (64) is connected to a power output end of the rotary cylinder (632), the suction disc support (64) being able to rotate around a horizontal axis by being driven by the rotary cylinder (632), and the suction disc support (64) including four downwardly extending support rods, and the bottom end of each of the four support rods being provided with the suction disc (640).

5. The bag feed mechanism for a bag packaging apparatus according to claim 4, wherein: ​ 6. The paper bag feeding mechanism for a paper bag packaging apparatus according to any one of claims 1 to 5, characterized by: ​ 7. The paper bag feed mechanism for a paper bag packaging apparatus according to claim 6, characterized by: ​ 8. The paper bag feed mechanism for a paper bag packaging apparatus according to claim 7, characterized by: The suction disc moving mechanism further comprises a longitudinal moving mechanism arranged on the frame (10) and a transverse moving mechanism arranged on the power output end of the longitudinal moving mechanism, and the lifting moving mechanism is arranged on the power output end of the transverse moving mechanism and can be driven by the transverse moving mechanism to reciprocate along the transverse direction.

9. The paper bag feed mechanism for a paper bag packaging apparatus according to claim 8, characterized by: The frame (10) comprises two trusses extending along the longitudinal direction and a sliding frame (610) arranged between the two trusses along the transverse direction, the longitudinal moving mechanism comprises a longitudinal moving cylinder (61), the sliding frame (610) is driven by the longitudinal moving cylinder (61) to reciprocate along the truss, the transverse moving mechanism comprises a transverse moving cylinder (62) arranged on the sliding frame (610), the output end of the transverse moving cylinder (62) is provided with a first fixed plate (942), the lifting moving mechanism comprises a lifting cylinder and a second fixed plate (942) arranged on the output end of the lifting cylinder, the lifting cylinder is arranged on the first fixed plate (942), and the rotating cylinder (632) is arranged on the second fixed plate (942).

10. The paper bag feeding mechanism for a paper bag packaging apparatus according to any one of claims 1 to 5, characterized by: The feeding driving mechanism comprises a feeding driving motor (901) and two feeding rollers (902) arranged side by side along the transverse direction, the conveying belt (91) is arranged between the two feeding rollers (902) and is driven to rotate by the feeding rollers (902), and the feeding driving motor (901) is in transmission connection with one of the feeding rollers (902).

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