Paper bag packaging equipment

Abstract

The invention relates to paper bag packaging equipment which comprises a machine frame, a paper bag conveying device, a paper bag conveying device and a paper bag conveying device. The cover body feeding device comprises a feeding frame and a pushing mechanism, and the feeding frame is provided with a feeding channel; a feeding channel is arranged on the machine frame, the feeding channel gradually inclines upwards in the advancing direction of a cover body, a suction cup feeding device is further arranged on the machine frame and comprises a suction cup and a suction cup movement mechanism, and the suction cup can be driven by the suction cup movement mechanism to suck paper bags from a paper bag containing area far away from the packaging position and transfer the paper bags to the packaging position. The posture of the paper bag transferred to the packaging position can be adjusted through the suction cup movement mechanism so that the paper bag can be in a loading state, wherein an opening of the paper bag faces the side where an outlet of the feeding channel is located, and the paper bag gradually inclines upwards from the opening position to the bag bottom position. The feeding device has the advantages that stacked cover bodies can be stably pushed and fed, and the problem of toppling is not prone to occurring.

Description

Technical Field

[0001] The invention relates to the technical field of paper bag packaging equipment. Background Art

[0002] Many foods on the current market are packaged in metal cans, which are equipped with thin covers (also called "thin covers") on their mouths. In order to reduce contamination of such covers during transportation, after the covers are processed, a certain number of covers need to be stacked tightly and piled to form a cylinder, and then transported to paper bag packaging equipment, and packaged in paper bags on the paper bag packaging equipment for shipment.

[0003] For example, the Chinese invention patent application with application number CN202011593099.2 (authorization announcement number: CN112660496B) discloses "A paper bag packaging machine", which includes a frame, a storage bin, a suction cup assembly, a blocking member, a guide assembly, a feeding device and a receiving device. The frame is provided with a workbench, which has a packaging position for packaging a whole stack of cover bodies into paper bags, and a receiving position is also provided downstream of the packaging position of the workbench. The above-mentioned feeding device is arranged upstream of the packaging position, and is used to transport the cover body to the packaging position, and the output end of the receiving device is arranged in the area between the packaging position and the receiving position, and is used to transport the packaged cover body and the outer packaging paper bag at the packaging position to the receiving position. The feeding device and feeding process of the paper bag packaging machine are specifically as follows: the feeding device includes a toggle mechanism, the feeding end of the feeding channel has a feeding port, and the discharging end has a discharging port for discharging the cover body, the discharging port is connected to the inlet of the guide channel, the toggle assembly of the toggle mechanism is used to push the whole stack of cover bodies in the feeding channel to the toggle assembly in the guide channel, the toggle assembly has a first toggle member for pushing the whole stack of cover bodies from the feeding port through the feeding channel and a second toggle member for pushing the whole stack of cover bodies from the feeding channel to the discharging port and then to the guide channel through the discharging port, the first toggle member and the second toggle member are both arranged above the feeding channel and can move downward alternately to at least partially extend into the feeding channel.

[0004] However, the above-mentioned paper bag packaging machine still has certain shortcomings. The guide channel of the feeding device in the above-mentioned patent application is basically arranged to extend horizontally. When a stack of cover bodies are pushed by the toggle assembly, one or more cover bodies located at the front of the pushing direction will easily fall over due to inertia, and it cannot be guaranteed that the cover bodies enter the paper bag in a good stacking state, affecting the overall packaging efficiency. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a paper bag packaging device that is conducive to the stable pushing of stacked covers and is not prone to tipping over in view of the current status of the prior art.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: a paper bag packaging device, comprising:

[0007] The frame has a packaging position, and the packaging position is provided with a packaging device for sealing and packaging the paper bag equipped with the cover body;

[0008] The cover loading device comprises a feeding frame and a pushing mechanism, wherein the feeding frame has a feeding channel, and the pushing mechanism can act on the covers stacked on the feeding channel and push the covers forward along the feeding channel;

[0009] The feeding channel is gradually inclined upward along the forward direction of the cover body. A suction cup feeding device is also provided on the frame, which includes a suction cup and a suction cup movement mechanism. The suction cup can be driven by the suction cup movement mechanism to suck up a paper bag from a paper bag placement area away from the packaging position and move the paper bag to the packaging position. The paper bag moved to the packaging position can be adjusted in posture by the suction cup movement mechanism and is in a loading state: the opening of the paper bag faces the side where the outlet of the feeding channel is located, and the paper bag gradually tilts upward from its opening position to its bag bottom position.

[0010] In order to realize the inclined structural design of the feeding channel, a feeding platform is provided on the frame, the feeding frame is arranged on the feeding platform, the feeding platform has a first end adjacent to the packaging position and a second end away from the packaging position, and the height position of the first end of the feeding platform is higher than the height position of the second end of the feeding platform. The above structural design can realize the inclined design by keeping the feeding frame parallel to the feeding platform, and other matching parts or mechanisms arranged on the feeding platform can also achieve better adaptation with the feeding frame.

[0011] In order to facilitate the flexible adjustment of the inclination angle of the feeding platform (feeding channel) so as to adapt to the pushing needs of covers of different sizes, a first height-adjusting rod assembly for supporting the feeding platform and capable of adjusting the height of the first end of the feeding platform is provided on the frame at a position corresponding to the first end of the feeding platform, and a second height-adjusting rod assembly for supporting the feeding platform and capable of adjusting the height of the second end of the feeding platform is provided on the frame at a position corresponding to the second end of the feeding platform.

[0012] The bag assembly comprises two guide plates extending along the feeding direction of the whole stack of covers and relatively arranged on both sides of the outlet of the feeding channel, a guide channel for the covers to pass through is formed between the two guide plates, an inlet of the guide channel is formed between the first ends of the two guide plates, and an outlet of the guide channel is formed between the second ends of the two guide plates, the outlet of the feeding guide plate assembly can move toward the paper bag located at the packaging position, and the end thereof where the outlet is located can extend into the paper bag, when the cover to be packaged is located in the guide channel and is driven by the pushing mechanism to move along the guide channel, the ends where the outlets of the two guide plates can move away from each other to open the bag opening, thereby allowing the stacked covers in the guide channel to enter the paper bag.

[0013] In order to facilitate the corresponding end of the feeding guide plate assembly to extend into the paper bag and enable the cover body to smoothly detach from the feeding guide plate assembly and enter the paper bag, the feeding guide plate assembly also includes a mounting seat for mounting the guide plate and a feeding drive mechanism for driving the mounting seat to move forward and backward. The two guide plates are rotatably mounted on the mounting seat near the middle and the rotation axis extends vertically. In a natural state, the distance between the second ends of the two guide plates is smaller than the distance between the first ends, so that the opening of the outlet is correspondingly smaller than the opening of the inlet.

[0014] Taking into account that a corresponding cover counting unit is generally designed upstream of the packaging position, in order to better meet the production rhythm of the cover paper bag packaging and improve the packaging feeding efficiency, the feeding channel of the feeding rack includes a rear feeding section and a front feeding section arranged in sequence from back to front, and the pushing mechanism includes a first pushing component for pushing the stacked covers along the rear feeding section to the front feeding section and a second pushing component for pushing the stacked covers along the front feeding section to the guide channel and continuing to push them along the guide channel to the paper bag located at the packaging position.

[0015] In order to simplify the structure of the suction cup movement mechanism and realize the position transfer and posture adjustment (tilt angle adjustment) of the paper bag, the suction cup movement mechanism includes a longitudinal movement mechanism, a transverse movement mechanism and a lifting movement mechanism. The longitudinal movement mechanism is arranged on the frame, the transverse movement mechanism is arranged on the power output end of the longitudinal movement mechanism, the lifting movement mechanism is arranged on the power output end of the transverse movement mechanism, and can be driven by the transverse movement mechanism to reciprocate in the transverse direction. The power output end of the lifting movement mechanism is also provided with a rotating cylinder and a suction cup bracket connected to the power output end of the rotating cylinder. The suction cup bracket can be driven by the rotating cylinder to rotate around the axis extending laterally. The suction cup is arranged on the suction cup bracket and can be driven by the lifting movement mechanism to suck the paper bag on the feeding platform and move it upward. It can be imagined that the suction cup movement mechanism can also use a conventional six-axis manipulator, that is, the suction cup is driven by the manipulator to realize the position transfer and tilt angle adjustment of the paper bag.

[0016] In order to open the bag opening of the paper bag in the up-down direction, it also includes a bag pressing clamp assembly arranged on the frame or the feeding platform, the bag pressing clamp assembly includes a bag pressing clamp and a bag pressing movement mechanism, the bag pressing clamp can be driven by the bag pressing movement mechanism to extend into the bag opening of the paper bag and press down the lower edge of the bag opening. Preferably, the bag pressing movement mechanism includes a first linear motion mechanism and a second linear motion mechanism arranged on the power output end of the first linear motion mechanism, the bag pressing clamp can be arranged on the power output end of the second linear motion mechanism, the movement direction of the power output end of the first linear motion mechanism is parallel to the extension direction of the feeding channel, and the movement direction of the power output end of the second linear motion mechanism is perpendicular to the movement direction of the power output end of the first linear motion mechanism.

[0017] Taking into account that the paper bag (especially after the cover body is loaded into the paper bag) is in an inclined state, and the feeding guide plate assembly may drive the paper bag to move due to the release of friction when the feeding is completed and returned, a paper bag stop assembly is also provided at the packaging position of the frame, and the paper bag stop assembly includes a stop member and a stop driving mechanism, and the stop member can be driven by the stop driving mechanism to move toward the position of the bag opening of the paper bag, and then resist the rear side of the bag opening edge of the paper bag.

[0018] In order to simplify the structure of the packaging device and ensure the sealing quality after the paper bag is loaded into the cover body, the packaging device includes:

[0019] A pressure rod assembly, comprising a pressure rod and a pressure rod driving mechanism, wherein the pressure rod extends along the width direction of the paper bag and can be driven by the pressure rod driving mechanism to press downward on the bag opening of the paper bag, the position of the paper bag pressed by the pressure rod is at a certain distance from the edge of the bag opening of the paper bag, and the portion of the paper bag from the edge of the bag opening to the position pressed by the pressure rod is recorded as a sealing portion;

[0020] A sealing assembly, comprising a roller and a sealing drive mechanism, wherein the roller is rotatably arranged at a power output end of the sealing drive mechanism and extends along the width direction of the paper bag, and the roller can be driven by the sealing drive mechanism to move upward from bottom to top, thereby acting on the bottom of the sealing portion of the paper bag and folding the sealing portion upward;

[0021] The bag pressing assembly comprises a lower pressing plate and a pressing plate driving mechanism. The lower pressing plate can be driven by the pressing plate driving mechanism to further fold the sealing part of the paper bag folded upwards and abut against the top of the main body of the paper bag.

[0022] Compared with the prior art, the advantages of the present invention are as follows: since the feeding channel adopts an inclined structural design, specifically, it gradually inclines upward along the forward direction of the cover body, so that when the stacked cover bodies are pushed forward by the pushing mechanism, the front cover body is not easy to tip over due to its own gravity. Accordingly, the bag can be adjusted in posture after being sucked and transferred to the packaging position by the suction cup feeding device, and the paper bag is gradually inclined upward from its opening position to its bag bottom position, thereby facilitating the stacked cover bodies on the feeding channel to be smoothly pushed into the paper bag, thereby improving the overall packaging efficiency of the paper bag packaging equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the three-dimensional structure of a paper bag;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of a paper bag packaging device according to an embodiment of the present invention;

[0025] Figure 3 It is a left side view of the paper bag packaging equipment according to an embodiment of the present invention;

[0026] Figure 4 A schematic diagram of the three-dimensional structure of a counting device according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the three-dimensional structure of the counting device according to the embodiment of the present invention after some components are omitted;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the counting device according to the embodiment of the present invention after some components are omitted from another angle;

[0029] Figure 7 It is a schematic diagram of the three-dimensional structure of a screw assembly according to an embodiment of the present invention;

[0030] Figure 8 It is a three-dimensional structural schematic diagram of a screw assembly from another angle according to an embodiment of the present invention;

[0031] Fig. 9 A front view of a screw assembly according to an embodiment of the present invention;

[0032] Fig.10 It is a left side view of the screw assembly according to an embodiment of the present invention;

[0033] Fig.11 It is a schematic diagram of the three-dimensional structure of the first pusher assembly according to an embodiment of the present invention;

[0034] Fig.12 It is a schematic diagram of the three-dimensional structure of the packaging device of the paper bag packaging equipment according to the embodiment of the present invention after the relevant components are omitted, and the sealing part of the paper bag is not folded upward;

[0035] Fig.13 This is a schematic diagram of the three-dimensional structure of the packaging device of the paper bag packaging equipment according to the embodiment of the present invention after the relevant components are omitted, and the sealing part of the paper bag is folded upward at a certain angle;

[0036] Fig.14 It is a left side view of the packaging device of the paper bag packaging equipment according to the embodiment of the present invention after the relevant components are omitted;

[0037] Fig.15 A diagram showing the opening process of a feeding guide plate assembly of a paper bag packaging device according to an embodiment of the present invention;

[0038] Fig.16 It is a schematic diagram of the three-dimensional structure of the bag pressing clamp assembly of the paper bag packaging equipment according to an embodiment of the present invention;

[0039] Fig.17 It is a three-dimensional structural schematic diagram of a pressure rod assembly of a paper bag packaging device according to an embodiment of the present invention;

[0040] Fig.18 A diagram showing the opening process of a paper bag stopper assembly of a paper bag packaging device according to an embodiment of the present invention;

[0041] Fig.19a It is a schematic diagram of the three-dimensional structure of a paper bag feeding device according to an embodiment of the present invention;

[0042] Fig.19b It is a schematic diagram of the three-dimensional structure of the paper bag feeding device according to an embodiment of the present invention from another angle;

[0043] Fig. 20 It is a schematic diagram of the three-dimensional structure of the suction cup assembly of the paper bag packaging equipment according to an embodiment of the present invention;

[0044] Fig.21 It is a left side view of the suction cup assembly of the paper bag packaging equipment according to an embodiment of the present invention;

[0045] Fig. 22 It is a schematic diagram of the three-dimensional structure of a material receiving device of a paper bag packaging device according to an embodiment of the present invention;

[0046] Fig.23 It is a left side view of the material receiving device of the paper bag packaging equipment according to the embodiment of the present invention, and the bracket assembly is in a tilted state;

[0047] Fig.24 This is a left side view of the material receiving device of the paper bag packaging equipment according to an embodiment of the present invention, and the bracket assembly is in a horizontal state;

[0048] Fig.25 for Fig.23 A cross-sectional view of the material receiving device taken along the AA direction;

[0049] Fig.26 This is a left side view of the material receiving device of the paper bag packaging equipment according to an embodiment of the present invention, and the bracket assembly is in a tilted state. DETAILED DESCRIPTION

[0050] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the drawings. Since the embodiments disclosed in the invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0051] Figure 1-Figure 26 A preferred embodiment of the paper bag packaging equipment of the present invention is shown. The paper bag packaging equipment includes a counting device, a feeding device, a packaging device, a paper bag feeding device and a receiving device. Among them, the counting device is used to quantitatively count the cover bodies b in the feeding process, and the stack of cover bodies b after counting is pushed to the packaging position 100 through the feeding device. The paper bag feeding device is used to move the paper bag a from the paper bag placement area (that is, the area where the conveyor belt is located below) to the packaging position 100. The packaging device is used to send the stacked cover bodies b into the paper bag a located at the packaging position 100, and seal and package the paper bag a. After the sealing and packaging is completed, the paper bag a is unloaded through the receiving device.

[0052] See also Figure 1 and Fig.12In order to package a certain number of stacked cover bodies b, paper bag a is basically in the shape of a long strip. When paper bag a is fully opened or stretched, its cross section is basically circular, and its inner diameter is slightly larger than the outer diameter of cover body b. This ensures that a stack of cover bodies b can be smoothly loaded into paper bag a, and makes paper bag a more compact as a whole after loading cover bodies b, without any looseness or wrinkles.

[0053] See also Fig.19a and Fig.19b Before packaging, paper bag a is usually in a closed state and is also a flattened sheet as a whole. Therefore, multiple paper bags a can be stacked together to form a stack of paper bags a. Paper bag a is transferred to the packaging position 100 on the frame 10 by a paper bag feeding device. Specifically, the paper bag feeding device includes a feeding assembly and a suction cup assembly. The feeding assembly is arranged on the frame 10. The frame 10 is a supporting frame body, which provides support for the above-mentioned feeding platform 41 and the suction cup assembly. Specifically, the feeding assembly can stack paper bags a and transfer paper bags a to the packaging position 100 adjacent to the frame 10.

[0054] The feeding assembly includes a feeding drive mechanism and a conveyor belt 91 driven by the feeding drive mechanism to circulate. The vertically stacked paper bags a can be placed on the conveyor belt 91. Specifically, in order to facilitate the placement of the paper bags a and avoid the stacked paper bags a from being skewed or scattered during the conveying process of the conveyor belt 91, the conveyor belt 91 has a partition 911 extending outward from the conveyor belt 91 and arranged in sequence along the length direction of the conveyor belt 91. The extension direction of the partition 911 is perpendicular to the conveying direction of the conveyor belt 91. The gap between two adjacent partitions 911 on the conveyor belt 91 constitutes a storage compartment 910. A stack of paper bags a can be placed in each storage compartment 910. The side of the conveyor belt 91 adjacent to the position of the suction cup 640 is recorded as the paper bag unloading side, and the side away from the position of the suction cup 640 is recorded as the paper bag loading side. The paper bags a stacked on the conveyor belt 91 are transported from the paper bag loading side to the paper bag unloading side by the conveyor belt 91.

[0055] The feeding drive mechanism of this embodiment includes a second feeding drive motor 901 and two feeding rollers 902 arranged side by side and spaced apart in the transverse direction. The conveyor belt 91 is wound between the two feeding rollers 902 and driven to rotate by the conveyor rollers 902. The second feeding drive motor 901 can be connected to one of the feeding rollers 902 through a gear transmission mechanism, a belt transmission mechanism or a chain transmission mechanism, thereby driving the conveyor belt 91 to circulate and rotate. Among them, one feeding roller 902 connected to the second feeding drive motor 901 is a driving roller, and the other feeding roller is a driven roller.

[0056] In order to accurately define the placement position of the paper bag a on the conveyor belt 91, so as to ensure that the paper bag a on the conveyor belt 91 can be effectively adsorbed by the suction cup 640, a limit plate 92 and a material-diverting plate assembly are also provided on the frame 10, wherein the limit plate 92 is located on one side of the width direction of the conveyor belt 91 and is arranged to extend vertically. The material-diverting plate assembly is located above the conveyor belt 91, and includes a rotating rod 94 extending horizontally and push plates 93 arranged in sequence along the length direction of the rotating rod 94, and each push plate 93 corresponds to each storage bin 910 on the conveyor belt 91. When the rotating rod 94 is driven by the second rotating drive mechanism 95 to rotate, each push plate 93 also rotates with the rotating rod 94, thereby pushing the paper bag a placed in each storage bin 910 toward the side where the limit plate 92 is located, until the side of the paper bag a in each storage bin 910 abuts against the limit plate 92. After the paper bag a is moved to the position, the second rotary drive mechanism 95 drives the rotating rod 94 and the push rod to rotate in the opposite direction (i.e. upward), so that each push plate 93 is away from the corresponding storage bin 910, so that when the conveyor belt 91 is conveying, the partition 911 on the conveyor belt 91 will not interfere with the push plate 93. After the stack of paper bags a in the storage bin 910 on the unloading side of the conveyor belt 91 is sucked away, the conveyor belt 91 moves to move the stack of paper bags a in the next storage bin 910 to the unloading side position, so that the suction cup assembly can pick up the material at a fixed position.

[0057] The frame 10 is provided with a plurality of suspension rods 15 arranged in sequence along the conveying direction of the conveyor belt above the conveyor belt 91, and the above-mentioned limit plates 92 are fixed on each suspension rod 15. The material-pickup plate assembly is arranged on a fixed plate 942, which is parallel to the limit plate and is also fixed on each suspension rod 15.

[0058] Generally speaking, the second rotary drive mechanism 95 can be a drive mechanism such as a drive motor or a linear drive cylinder. If a drive motor is used, the drive motor can be directly connected to the rotating rod 94 or indirectly connected through other transmission components (such as a gear component, a sprocket component or a belt transmission component). In a preferred embodiment, the second rotary drive mechanism 95 includes a first linear drive cylinder and a swing arm 941 connected to the rotating rod 94, wherein the end of the main body of the first linear drive cylinder away from its output end is rotatably connected to the frame 10, and the output end of the first linear drive cylinder is rotatably connected to the swing arm 941. When the first linear drive cylinder is extended or retracted, the swing arm 941 can drive the rotating rod 94 and each push plate 93 on the rotating rod 94 to rotate.

[0059] See also Fig. 20 and Fig.21The suction cup assembly includes a suction cup 640 for sucking the paper bag a placed on the feeding assembly (specifically, the conveyor belt 91) and a suction cup movement mechanism for driving the suction cup 640 to move. The suction cup movement mechanism includes a longitudinal movement mechanism, a transverse movement mechanism, and a lifting movement mechanism. The longitudinal movement mechanism is arranged on the frame 10. Specifically, the frame 10 includes two trusses extending longitudinally and a sliding frame 610 erected transversely between the two trusses. The longitudinal movement mechanism includes a longitudinal cylinder 61. The sliding frame 610 is driven by the longitudinal cylinder 61 to reciprocate along the truss. The longitudinal cylinder 61 can adopt a conventional rodless cylinder. The above-mentioned "longitudinal" is consistent with the width direction of the conveyor belt 91, and the "transverse" is consistent with the conveying direction of the conveyor belt 91. The transverse movement mechanism is arranged on the power output end of the longitudinal movement mechanism. Specifically, the transverse movement mechanism is a transverse cylinder 62. The transverse cylinder 62 can also adopt a rodless cylinder. The rodless cylinder is arranged on the sliding frame 610. A first fixed plate 942 is provided on the output end of the transverse moving cylinder 62, and the lifting and moving mechanism is provided 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 and moving mechanism includes a lifting cylinder and a second fixed plate 942 provided on the output end of the lifting cylinder, wherein the lifting cylinder is provided on the first fixed plate 942. A rotating cylinder 632 is provided on the second fixed plate 942 at the output end of the lifting cylinder, and a suction cup bracket 641 is provided on the power output end of the rotating cylinder 632. The suction cup bracket 641 includes four support rods 642 extending downward, and the bottom ends of the four support rods 642 are provided with suction cups 640. When the paper bag a is laid flat, it has a square structure, and the positions of the four suction cups 640 can correspond to the four corner positions of the flat paper bag a. The suction cup bracket 641 can be driven by the rotary cylinder 632 to rotate around the horizontally extending axis, so as to adjust the posture of the sucked paper bag a to a suitable tilt angle, so as to facilitate the upstream stacked cover body b to enter the paper bag a. The suction cup 640 can use a negative pressure generator or a vacuum system to provide negative pressure, and maintain the stability of the negative pressure through a sealing mechanism. The suction cup 640 cooperates with the suction cup movement mechanism, so that the suction cup 640 can stably suck and transfer the paper bag a at a fixed point.

[0060] When sucking the paper bag a on the conveyor belt 91, the rotating cylinder 632 drives the suction cup bracket 641 to rotate, so that the four suction cups 640 are basically on the same horizontal plane. After sucking the paper bag a, the suction cups 640 can be driven by the lifting and moving mechanism to move upward. After sucking the paper bag a, the suction cups 640 are moved upward. Due to the gravity of the paper bag a, the rest of the paper bags a except the topmost paper bag a sucked by the suction cup 640 will not be easily taken out upward, and the waste of the paper bag a will not be caused.

[0061] See also Figure 2-Figure 10 The counting device of the paper bag packaging equipment includes a conveying frame 2, a feeding mechanism 22 and a counting unit.

[0062] The conveyor rack 2 has a conveying channel 200 for stacking and conveying the cover bodies b forward. The "front" in the "conveyor channel 200 conveyed forward" refers to the side adjacent to the outlet of the conveyor channel 200 in the extending direction of the conveyor channel 200, and is not limited to the conventional "front and rear direction". For example, when a section of the conveyor channel 200 extends vertically and the cover bodies b move downward from top to bottom, the "forward conveyance" mentioned above means downward conveyance.

[0063] The feeding mechanism 22 is arranged on one side of the conveying frame 2, and can act on the cover body b located in the conveying channel 200, and convey the cover body b forward along the conveying channel 200. Specifically, the feeding mechanism 22 includes a first feeding drive motor 221 and a feeding wheel 222 driven and rotated by the first feeding drive motor 221. There are two feeding wheels 222, and the two feeding wheels 222 are arranged on both sides of the conveying channel 200, and both are in contact with the outer peripheral edges of the cover bodies b stacked in the conveying channel 200. When the feeding wheels 222 rotate, the cover bodies b can be driven to be conveyed forward. The first feeding drive motor 221 can drive the two feeding wheels 222 to rotate through a gear transmission assembly, a belt transmission assembly or a chain transmission assembly, wherein the feeding wheels 222 arranged on both sides of the conveying channel 200 rotate in opposite directions.

[0064] The conveying channel 200 of the conveying rack 2 includes a first channel section 201, an intermediate channel section 202, and a second channel section 203 which are sequentially connected along the conveying direction. The first channel section 201 extends horizontally or gradually tilts downward from the back to the front, preferably adopting a structural design that gradually tilts downward from the back to the front. The intermediate channel section 202 extends vertically, and the cover bodies b are automatically stacked together under the action of their own gravity after being conveyed to the intermediate channel section 202. The second channel section 203 extends horizontally or gradually tilts upward from the back to the front, preferably adopting a structural design that gradually tilts upward from the back to the front.

[0065] The two feeding wheels 222 of the feeding device are arranged on both sides of the middle channel section 202, so that the cover body b located in the middle channel section 202 can be driven to be transported downward. Since the cover body b located in the middle channel section 202 is stacked vertically and is always in a tightly fitted state, the feeding wheel 222 can continuously apply a downward pushing force to the cover body b when rotating, thereby ensuring the stability of the feeding of the cover body b and the accuracy of the counting of the cover body b.

[0066] In order to simplify the structure of the conveying frame 2, the conveying frame 2 includes at least three limiting ribs 20 arranged in sequence along the circumference of the cover body b, such as Figure 4As shown, four limiting ribs 20 are shown, and the internal space defined by the four limiting ribs 20 constitutes the above-mentioned conveying channel 200. The conveying channel 200 defined by the above-mentioned limiting ribs also reserves corresponding gaps so that the feeding mechanism 22 outside the conveying channel 200 can act on the cover b located in the conveying channel 200, so that the cover b is conveyed forward. In the conveying channel 200 that forms the above-mentioned bend, each limiting rib 20 is also correspondingly designed as a matching bend structure.

[0067] A vertical plate 11 is disposed on the frame 10 , and a through hole is formed on the vertical plate 11 for the cover b to pass through. The ends of the four limiting ribs 20 are connected to the outer peripheral edge of the through hole.

[0068] The counting unit includes a screw assembly, a screw driving mechanism and a rotary encoder 13. The screw assembly includes two screws 3 arranged at intervals and capable of allowing the cover body b to pass through the gap between the two screws. The screw driving mechanism is connected to the two screws 3 in a transmission manner, so as to drive the two screws 3 to rotate synchronously. The outer peripheral walls of the two screws 3 are provided with a rotation groove in which the outer peripheral edge of the cover body b is limited. The rotation grooves of the two screws 3 are constructed so that only one cover body b can pass between the two screws 3 during the process of the two screws 3 rotating one circle. Specifically, the rotation groove 30 on the screw 3 has a groove inlet 301 for the outer peripheral edge of the cover body b to enter the rotation groove 30 and a groove outlet 302 for the cover body b located in the rotation groove 30 to move out. The angle formed by the position of the groove inlet 301 of the rotation groove 30 and the position of the groove outlet 302 relative to the central axis of the screw 3 in the circumferential direction is recorded as α, wherein 30°<α<180°. The rotating groove adopts the above structural design, so that when the next cover body b just enters the groove entrance 301 of the rotating groove of the screw rod 3, the previous cover body b has already moved out of the groove exit 302 of the rotating groove, thereby ensuring that only one cover body b passes between the two screw rods 3 during one rotation of the two screw rods 3, thereby improving the accuracy of the counting detection of the cover bodies b. The rotary encoder 13 can count the cover bodies b passing through the gap between the two screw rods 3 by directly or indirectly measuring the number of rotations of one of the screw rods 3.

[0069] Both screw rods 3 are rotatably disposed on the vertical plate 11. The screw driving mechanism includes a screw driving motor 32 and two belt drive assemblies 33 connected to the output shaft of the screw driving motor 32. The two belt drive assemblies 33 correspond to the two screw rods 3 one by one. Specifically, each belt drive assembly 33 includes at least two first pulleys 331 rotatably disposed on the vertical plate 11 and a first transmission belt wound between the corresponding two first pulleys 331. The vertical plate 11 is also provided with two second pulleys 332 coaxially connected to the two screw rods 3, and a second transmission belt 333 is wound between one of the first pulleys 331 and the second pulley 332 of the belt drive assembly 33. The above-mentioned second pulley 332 is connected to the screw rod 3 by a connecting shaft 31 rotatably passed through the vertical plate 11, and the second pulley 332 and the screw rod 3 are respectively located at the front and rear sides of the vertical plate 11.

[0070] Generally speaking, the rotating shaft of the rotary encoder 13 can be directly connected to the screw 3 through the coupling 131, or can be connected to the first pulley 331 of the belt transmission assembly 33, both of which can directly or indirectly measure the number of rotations of one of the screws 3 and thus achieve the purpose of counting the cover b passing through the gap between the two screws 3, see Figure 5 In a preferred embodiment, a fixing bracket 12 for fixing the rotary encoder 13 is further provided on the vertical plate 11, and the fixing bracket 12 is arranged adjacent to a first pulley 331 of the belt transmission assembly 33, wherein the rotating shaft of the rotary encoder 13 is connected to the first pulley 331 through a coupling 131. The outer diameter of the first pulley 331 and the outer diameter of the second pulley 332 are preferably designed to be equal in diameter, so that the number of rotations of the first pulley 331 and the number of rotations of the second pulley 332 are the same. Of course, the first pulley 331 and the second pulley 332 may also be designed to be non-equal in diameter, and the rotation angle or number of rotations between the two can be obtained by converting the corresponding ratio.

[0071] The two screw rods 3 are arranged at the position of the terminal outlet of the second channel section 203. In some embodiments, the two screw rods 3 are arranged at intervals up and down, and correspondingly, the terminal outlet of the second channel section 203 is provided with arc-shaped limit plates 9221 arranged opposite to each other up and down, and the notches of the two arc-shaped limit plates 9221 are opposite to each other to define a counting channel 211 connected with the transmission channel 200, and the two arc-shaped limit plates 9221 are provided with a clearance notch 210, and the upper and lower parts of the screw rods 3 can extend into the counting channel 211 corresponding to the screw rods 3, so as to realize the transmission of the cover body b in the counting channel 211.

[0072] The second channel section 203 of the present embodiment adopts a structural design that gradually tilts upward from the back to the front. As a result, the cover body b is always in a tightly fitted state during the process of being conveyed forward in the conveying channel 200. On this basis, the two screws 3 are arranged at the end outlet of the second channel section 203, which can ensure that the cover body b can pass through the two screws 3 in sequence without missing or the problem of the subsequent cover body b not being able to keep up.

[0073] Considering that only the rotary encoder 13 directly or indirectly measures the number of rotations of one of the screws 3 to count the covers b passing through the gap between the two screws 3, there may be inaccurate counting due to the failure of the covers b to be delivered in place. In a further preferred embodiment, the counting unit also includes an infrared sensor (not shown in the drawings) for detecting the number of covers b passing between the two screws 3. The rotary encoder 13 may have problems with pulse loss or miscounting when rotating at high speed or in the presence of mechanical vibration. The infrared sensor can be used as an auxiliary counting means to verify and supplement the count of the rotary encoder 13. The infrared sensor can detect and correct the counting errors of the rotary encoder 13 in a timely manner by detecting the number of times the covers b pass.

[0074] The cover body b is conveyed forward by the synchronously rotating screw 3, wherein the rotation grooves 30 of the two screws 3 are constructed to allow only one cover body b to pass between the two screws 3 during one rotation of the two screws 3. On this basis, the number of rotations of one of the screws 3 is directly or indirectly measured by the rotary encoder 13 to count the cover bodies b passing through the gap between the two screws 3. The structural design of the above-mentioned counting unit enables each cover body b to quickly detach from the rotation groove 30 of the screw 3 after entering the rotation groove 30 of the screw 3, which greatly shortens the conveying counting time of the cover body b and improves the counting and conveying efficiency. On the other hand, since the conveying time of each cover body b via the screw 3 is shortened, the problem of scratches or edge squeeze of the cover body b during the conveying process is also effectively avoided.

[0075] The counted stack of cover bodies b is sent to the packaging position 100 of the frame 10 by the cover body feeding device, loaded into the paper bag a placed at the packaging position 100, and then the paper bag a is sealed by the packaging device.

[0076] See also Figure 2 , Figure 4 and Fig.11, the cover body loading device includes a feeding rack 4 and a pushing mechanism. The feeding rack 4 is provided with a feeding channel 40, and the pushing mechanism can act on the cover bodies b stacked on the feeding channel 40, and push the cover bodies b forward along the feeding channel 40. In this embodiment, the feeding channel 40 gradually tilts upward along the forward direction of the cover body b. In order to realize the inclined structural design of the feeding channel 40, a feeding platform 41 is provided on the frame 10, wherein the feeding platform 41 has a first end adjacent to the packaging position 100 and a second end away from the packaging position 100, and the height position of the first end of the feeding platform 41 is higher than the height position of the second end of the feeding platform 41. The feeding rack 4 is arranged on the feeding platform 41, and the extension direction of the feeding rack 4 is parallel to the extension direction of the feeding platform 41. In order to facilitate the flexible adjustment of the inclination angle of the feeding platform 41 (feeding channel 40) so as to adapt to the pushing needs of the cover body b of different sizes, a first height adjustment rod assembly 42 is provided on the frame 10 at a position corresponding to the first end of the feeding platform 41, and a second height adjustment rod assembly 43 is provided at a position corresponding to the second end of the feeding platform 41. The first height adjustment rod assembly 42 can be used to support the bottom of the first end of the feeding platform 41 and can adjust the height of the first end of the feeding platform 41, and the second height adjustment rod assembly 43 can be used to support the bottom of the second end of the feeding platform 41 and can adjust the height of the second end of the feeding platform 41. The first height adjustment rod assembly 42 includes two vertically extending first lead screws 421, and the two first lead screws 421 are arranged at intervals along the width direction of the feeding platform 41. A first support plate 141 is provided on the frame 10 below the first end of the feeding platform 41, and the two first lead screws 421 are threadedly connected to the first support plate 141. The lower end of the first lead screw 421 is provided with a first operating handle 422 for rotating the lead screw, and the upper end of the first lead screw is hinged to the bottom of the feeding platform 41 through a hinge joint. The operator can rotate the first lead screw 421 by operating the first operating handle 422, thereby realizing the lifting and lowering of the first lead screw 421, and then achieving the purpose of adjusting the height of the first end of the feeding platform 41. Similarly, the second height adjustment rod assembly 43 includes two second lead screws 431 extending vertically, and the two second lead screws 431 are arranged at intervals along the width direction of the feeding platform 41. A second support plate 142 is provided on the frame 10 below the second end of the feeding platform 41, and the two second lead screws 431 are threadedly connected to the second support plate 142. The lower end of the second lead screw 431 is provided with a second operating handle 432 for rotating the lead screw, and the upper end of the second lead screw is hinged to the bottom of the feeding platform 41 through a hinge joint. The operator can rotate the second lead screw 431 by operating the second operating handle 432 , thereby achieving the lifting and lowering of the second lead screw 431 , thereby achieving the purpose of adjusting the height of the second end of the feeding platform 41 .

[0077] Matching with the feeding rack 4 arranged along an inclination, the paper bag a transferred to the packaging position 100 can be adjusted in posture by the suction cup movement mechanism and be in a loading state, wherein the loading state is: the opening of the paper bag a faces the side where the outlet of the feeding channel 40 is located, and the paper bag a gradually tilts upward from its opening position to its bag bottom position. Specifically, the tilting direction of the paper bag a is consistent with the extension direction of a stack of cover bodies b stacked on the feeding rack 4.

[0078] See also Figure 11-Figure 15, a support rod assembly 80 is also provided at the packaging position 100 of the frame 10, and the bagging process of the stack of cover bodies b pushed to the packaging position 100 and the sealing operation after bagging are completed are all completed on the support rod assembly 80. Specifically, when the paper bag a is driven upward by the suction cup movement mechanism and moved to the support rod assembly 80 of the packaging position 100, due to the gravity of the paper bag a, at least the lower side edge of the opening position of the paper bag a is in a hanging state, that is, the opening of the paper bag a is in a "half-open" state. In order to facilitate the paper bag a in the "half-open state" to continue to open and push the stacked cover bodies b into the paper bag a, a feeding guide plate assembly 5 is also provided at the outlet of the feeding channel 40 of the feeding frame 4 for receiving the stacked cover bodies b pushed from the feeding channel 40 and moving the stacked cover bodies b into the paper bag a at the packaging position 100. The feeding guide plate assembly 5 includes two guide pieces 51 extending along the feeding direction of the whole stack of cover bodies b and arranged relatively on both sides of the outlet of the feeding channel 40. A guide channel 510 for the cover body b to pass through is formed between the two guide pieces 51. The inlet of the guide channel 510 is formed between the first ends of the two guide pieces 51, and the outlet of the guide channel 510 is formed between the second ends. The feeding guide plate assembly 5 as a whole can reciprocate in a direction parallel to the extension direction of the feeding channel 40, so as to transfer the stacked cover bodies b pushed from the feeding channel 40 to the position of the paper bag a at the packaging position 100. After the feeding guide plate assembly 5 moves into position, the end where the outlet is located extends into the paper bag a. The stacked cover bodies b in the guide channel 510 are pushed by the pushing mechanism and move along the guide channel 510 until all the stacked cover bodies b enter the paper bag a. The specific structure and working process of the pushing mechanism are described in detail below. The feeding guide plate assembly 5 of this embodiment also includes a mounting seat 52 for mounting the guide piece 51 and a feeding drive mechanism 54 for driving the mounting seat 52 to move forward and backward. Among them, the two guide pieces 51 are rotatably mounted on the mounting seat 52 through a rotating pin 521 axis near the middle, and the rotating axis 82 line of the rotating pin 521 axis is vertically extended. A spring baffle 53 is also provided on the mounting seat 52 at the left and right sides of the two guide pieces 51, and a spring (not shown in the drawings) is provided between the two spring baffles 53 and the corresponding guide piece 51. In the natural state, under the elastic force of the two springs, the spacing between the second ends of the two guide pieces 51 is smaller than the spacing between the first ends, so that the opening of the outlet is smaller than the opening of the inlet. When the stacking cover b is driven by the push mechanism to move along the guide channel 510, the stacking cover b can act on the second ends of the two guide pieces 51 (overcoming the elastic force of the spring), and the ends of the two guide pieces 51 at the exits are moved away from each other, thereby opening the bag opening, thereby allowing the stacked cover b in the guide channel 510 to enter the paper bag a, completing the bagging action. After the stacking cover b in the guide channel 510 is transferred to the paper bag a, the second ends of the two guide pieces 51 are restored to a state of being close to each other under the elastic force of the spring.The rotating structural design of the guide plate 51 and the coordinated arrangement with the spring can facilitate the corresponding end of the feeding guide plate assembly 5 to extend into the paper bag a and enable the cover body b to smoothly detach from the feeding guide plate assembly 5 and enter the paper bag a.

[0079] Combination Figure 3 , considering that a corresponding cover body b counting unit is generally designed upstream of the packaging position 100, in order to better meet the production rhythm of the cover body b paper bag a packaging and improve the packaging feeding efficiency, the feeding channel 40 of the feeding rack 4 of this embodiment includes a rear feeding section 402 and a front feeding section 401 arranged in sequence from back to front, and the pushing mechanism includes a first pushing component 441 for pushing the stacked cover bodies b along the rear feeding section 402 to the front feeding section 401 and a second pushing component 442 for pushing the stacked cover bodies b along the front feeding section 401 to the guide channel 510 and continuing to push them along the guide channel 510 to the paper bag a located in the packaging position 100. Specifically, the first pushing assembly 441 includes a first rodless cylinder 4411 arranged on the feeding platform 41, the first rodless cylinder 4411 is located below the feeding rack 4, and the extension direction of the first rodless cylinder 4411 is consistent with the extension direction of the feeding rack 4, and the slider of the first rodless cylinder 4411 is provided with a second transverse cylinder 4412 which is opposite to and arranged at intervals on the left and right, and the power output shafts of the two second transverse cylinders 4412 are provided with a pushing plate 4413, and the two pushing plates 4413 are respectively located on the left and right sides of the feeding rack 4, and can approach or move away from each other (in the left and right direction) under the action of the corresponding second transverse cylinder 4412. The two push plates 4413 have relatively extended wedge-shaped inserts 44130 at the two opposite side edges. When the two push plates 4413 approach each other and move to the set position, the wedge-shaped inserts 44130 of the two push plates 4413 can act on the rear sides of the left and right edges of the stacking cover body b in the extension direction of the feeding rack 4, and then when the first rodless cylinder 4411 is actuated, the two push plates 4413 can drive the stacking cover body b along the rear feeding section 402 of the feeding channel 40 to be pushed to the front feeding section 401.

[0080] The second pusher assembly 442 includes a second rodless cylinder 4421, a second lifting cylinder 4422 provided on the slider of the second rodless cylinder 4421, and a pusher rod 4423 provided on the power output end of the second lifting cylinder 4422. Specifically, a second support frame 411 is provided on the feeding platform 41, the second rodless cylinder 4421 is provided on the second support frame 411, and the second rodless cylinder 4421 located on the second support frame 411 is located above the feeding rack 4. The pusher rod 4423 is located directly above the feeding channel 40 of the feeding rack 4, and the extension direction of the pusher rod 4423 is consistent with the extension direction of the feeding rack 4. The second lifting cylinder 4422 extends vertically, and the first end of the pusher rod 4423 is connected to the output end of the lower end of the second lifting cylinder 4422. When the first lifting cylinder 891 moves down to the set position, the push rod 4423 is exactly located at the position of the feeding channel 40, and the second end of the push rod 4423 is located at the rear side of the stacking cover b of the feeding channel 40. Driven by the second rodless cylinder 4421, the second end of the push rod 4423 acts on the middle area of ​​the cover b at the rear side of the stacking cover b, pushing the stacking cover b to move forward along the front feeding section 401 of the feeding channel 40. After the push rod 4423 completes the pushing action, it is driven by the second lifting cylinder 4422 to move upward, thereby giving way to the pushing action of the first pushing assembly 441. Since the pushing rod 4423 is a rod body, its second end acts on the middle area of ​​the cover body b, and the two pushing plates 4413 of the first stacking assembly act on the left and right edge positions of the cover body b. Therefore, after the stacking cover b is pushed to the front feeding section 401 by the pushing plate 4413 of the first pushing assembly 441, the pushing rod 4423 of the second pushing assembly 442 can naturally rest on the rear side of the stacking cover body b. That is, the first pushing assembly 441 and the second pushing assembly 442 can be well connected and cooperated with each other without interference problems, thereby ensuring the stability of the pushing process of the stacking cover body b.

[0081] See also Fig.14 and Fig.16Considering that the degree of "half-open state" of the bag opening of paper bag a will vary due to the deadweight of paper bag a, there may be a situation where the feeding guide plate assembly 5 does not meet the requirements for inserting the bag opening. For this reason, a bag pressing clamp assembly is also provided on the frame 10 or the feeding platform 41. Specifically, the bag pressing clamp assembly includes a bag pressing clamp 71 and a bag pressing motion mechanism 72. The bag pressing clamp 71 can be driven by the bag pressing motion mechanism 72 to extend into the bag opening of paper bag a and press down the lower edge of the bag opening. In some embodiments, the bag pressing motion mechanism 72 includes a first linear motion mechanism 721 and a second linear motion mechanism 722. A connecting plate 723 is provided on the power output end of the first linear motion mechanism 721. The second linear motion mechanism 722 is installed on the connecting plate 723. The bag pressing clamp 71 is arranged on the power output end of the second linear motion mechanism 722. The motion direction of the power output end of the first linear motion mechanism 721 is parallel to the extension direction of the feeding channel 40, and the motion direction of the power output end of the second linear motion mechanism 722 is perpendicular to the motion direction of the power output end of the first linear motion mechanism 721. Considering that the extension direction of the feeding channel 40 is inclined relative to the horizontal direction, the motion direction of the power output end of the second linear motion mechanism 722 is also inclined relative to the vertical direction. Specifically, both the first linear motion mechanism 721 and the second linear motion mechanism 722 can adopt motion mechanisms such as cylinders and electric push rods.

[0082] When paper bag a is driven upward by the suction cup movement mechanism and moves to the support rod of the packaging position 100, due to the gravity of paper bag a, at least the lower edge of the opening position of paper bag a is in a suspended state, that is, the opening of paper bag a is in a "half-open" state. Then, the bag pressing clamp assembly is actuated, and the bag pressing clamp 71 is driven by the bag pressing movement mechanism 72 to extend into the bag opening of paper bag a and press down the lower edge of the bag opening, so that the opening of paper bag a can always be maintained in a "half-open" state or a relatively large opening state, which can facilitate the insertion of the second end of the feeding guide plate assembly 5 into paper bag a, continue to open paper bag a, and then push the stacked cover body b into paper bag a.

[0083] In order to make the paper bag a fully open as a whole, so that the stacked cover body b can be smoothly pushed into the paper bag a, the frame 10 is also provided with a blowing device (not shown in the drawings), which includes a blowing pipe connected to an external air source, and the air outlet of the blowing pipe faces the bag opening of the paper bag a. When the cover body b enters the paper bag a, the blowing pipe can blow air into the paper bag a to fully expand the paper bag a. A corresponding solenoid valve can be set on the communication path between the blowing pipe and the external air source to control the on and off of the air path.

[0084] See also Fig.14In the process that the second end of the feeding guide plate assembly 5 enters the paper bag a, considering that the paper bag a may move forward due to the driving of the feeding guide plate assembly 5, a material blocking rod assembly is further provided at the front end of the support rod assembly 80. The material blocking rod assembly includes a material blocking member 961 and a material blocking driving mechanism 962 for driving the material blocking member 961 to move along the extension direction of the support rod. The material blocking driving mechanism 962 can adopt a material blocking driving cylinder, and the material blocking driving cylinder is fixed relative to the frame 10. The material blocking member 961 is a cylinder, which is arranged on the output shaft of the material blocking driving cylinder and can be blocked at the front side of the paper bag a (that is, the bottom position of the paper bag a). When the number of cover bodies b to be packaged is different, the required length of the paper bag a is also different. For paper bags a of different sizes, the material blocking member 961 can be driven by the material blocking driving cylinder to move and adjusted to a position suitable for the paper bag a of the corresponding size.

[0085] See also Fig.12 and Fig.18 Considering that the paper bag a (especially after the cover body b is loaded into the paper bag a) is in an inclined state, and the feeding guide plate assembly 5 may drive the paper bag a to move due to the friction release when the feeding is completed and returned, for this reason, a paper bag stop assembly is also provided at the packaging position 100 of the frame 10, and the paper bag stop assembly includes a stopper 741 and a stopper driving mechanism 742. The stopper 741 can be driven by the stopper driving mechanism 742 to move toward the position of the bag opening of the paper bag a, and then block the rear side of the bag opening edge of the paper bag a. Specifically, the paper bag stop assembly is arranged on the left or right side of the paper bag a, and of course, it can also be two groups, which are correspondingly arranged on the left and right sides of the paper bag a. The stopper driving mechanism 742 adopts a cylinder, and the main body of the cylinder is hinged on the frame 10. The stopper 741 is in the shape of a long strip, and the middle part of the stopper 741 is rotatably arranged on the frame 10 (or on a corresponding connecting frame arranged on the frame 10). The output end of the cylinder is rotatably connected to the first end of the stopper 741, and the second end of the stopper 741 serves as a stopper for abutting against the rear side of the edge of the bag opening of the paper bag A. When the cylinder is retracted, the stopper 741 rotates in the opposite direction, and the second end of the stopper 741 moves away from the bag opening of the paper bag A to make way.

[0086] Continue to see Figure 12-14, the packaging device also includes a pressure rod assembly and a sealing assembly. The pressure rod assembly is located above the paper bag a (the paper bag a at the packaging position 100) as a whole, and includes a pressure rod 751 and a pressure rod 751 driving mechanism. The pressure rod 751 extends along the width direction of the paper bag a, and can be driven by the pressure rod 751 driving mechanism to press down on the bag mouth of the paper bag a. Specifically, the pressure rod 751 driving mechanism includes a third linear motion mechanism 7521 and a fourth linear motion mechanism 7522 provided at the power output end of the third linear motion mechanism 7521, wherein the power output end of the third linear motion mechanism 7521 reciprocates in the left-right direction, and the power output end of the fourth linear motion mechanism 7522 reciprocates in the up-down direction. The pressure rod 751 is provided on the power output end of the fourth linear motion mechanism 7522, and is driven by the fourth linear motion mechanism 7522 to move downward and press down on the bag mouth of the paper bag a. The position where the pressure rod 751 presses the paper bag a is at a certain distance from the edge of the bag opening of the paper bag a. The portion of the paper bag a from the edge of the bag opening of the paper bag a to the position where the pressure rod 751 presses is recorded as the sealing portion a1. The sealing portion a1 can be folded upward by the sealing assembly and then pressed by the bag pressing assembly to be pressed against the top of the main body of the paper bag a, thereby achieving the purpose of sealing. Specifically, the sealing assembly includes a roller 761 and a sealing drive mechanism, wherein the sealing drive mechanism adopts a fifth linear motion mechanism 762, the main body of which is arranged at the bottom front side of the feeding platform 41, that is, at the bottom rear side of the support rod assembly 80, and the power output end of the fifth linear motion mechanism 762 extends forward and upward when extended. The roller 761 is rotatably arranged at the power output end of the sealing drive mechanism, and the axis of the roller 761 extends along the width direction of the paper bag a. When the fifth linear motion mechanism 762 extends, the roller 761 moves from bottom to top and acts on the bottom of the sealing part a1 of the paper bag a, and folds the sealing part a1 upward. The bag pressing assembly is arranged at the upper front side position of the feeding platform 41, that is, at the upper rear side position of the support rod assembly 80, and includes a lower pressing plate 771 and a pressing plate driving mechanism. The pressing plate driving mechanism includes a sixth linear motion mechanism 772 and a seventh linear motion mechanism 773 arranged on the power output end of the sixth linear motion mechanism 772. Specifically, the sixth linear motion mechanism 772 extends vertically, and the power output end of the sixth linear motion mechanism 772 extends downward, and a second fixed frame 774 is arranged thereon, and the main body of the seventh linear motion mechanism 773 is rotatably arranged on the second fixed frame 774. The lower pressing plate 771 is also rotatably arranged on the second fixed frame 774, and can be rotatably connected to the second fixed frame 774 through a pin extending left and right. The lower pressing plate 771 is an arc-shaped plate structure with an opening facing downward, and the inner diameter of the arc-shaped plate matches the outer diameter of the paper bag a after being loaded into the cover body b. The power output end of the seventh linear motion mechanism 773 is rotatably connected to the back side of the lower pressing plate 771 .After the sealing portion a1 of paper bag a is folded upward into place through the sealing assembly, the sixth linear motion mechanism 772 drives the seventh linear motion mechanism 773 and the pressure plate to move downward as a whole. During the downward movement or after the downward movement is in place, the lower pressure plate 771 is driven by the seventh linear motion mechanism 773 to deflect downward in a relatively fixed position, thereby continuing to fold the sealing portion a1 of paper bag a that is folded upward and abutting against the top of the main body of paper bag a.

[0087] The third linear motion mechanism 7521, the fourth linear motion mechanism 7522, the fifth linear motion mechanism 762, the sixth linear motion mechanism 772, and the seventh linear motion mechanism 773 mentioned above can all adopt motion mechanisms such as cylinders and electric push rods.

[0088] After the sealing and packaging is completed, the paper bag a is received by the receiving device and unloaded.

[0089] See also Figure 22-Figure 26 , the receiving device includes a support rod assembly 80, a material discharging device and a bracket device. The support rod assembly 80 is arranged at the packaging position 100 of the frame 10 of the paper bag packaging equipment. The paper bag a can be transferred to the support rod assembly 80, and the paper bag a with the cover body b can be packaged on the support rod assembly 80. Specifically, the support rod assembly 80 of this embodiment includes two support rods 81 arranged side by side and at intervals, and the extension direction of the two support rods 81 is consistent with the length direction of the paper bag a. The two support rods 81 can be driven by the first rotating drive mechanism 83 to approach or move away from each other. When the two support rods 81 move to the set position, they can maintain a supporting state of forming an upward support for the paper bag a. It can be understood that in this supporting state, the spacing between the two support rods 81 is smaller than the outer diameter of the cover body b, so that the paper bag a with the cover body b can be placed on it. After the paper bag a with the cover body b is packaged, the two support rods 81 move away from each other, and the paper bag a falls downward from between the two support rods 81 to achieve material dropping.

[0090] The support rod assembly 80 also includes two rotating shafts 82 arranged side by side and both of which can rotate around their own axes, and a first rotating drive mechanism 83 for driving the two rotating shafts 82 to rotate. The above-mentioned two support rods 81 are parallel to the rotating shafts 82 and are respectively connected to the corresponding rotating shafts 82, wherein the support rods 81 and the rotating shafts 82 can be connected through a plurality of connecting rods 84 arranged in sequence along the length direction of the support rods 81. The first rotating drive mechanism 83 includes two rotating cylinders 632, and the power output shafts of the two rotating cylinders 632 can be respectively connected to the two rotating shafts 82 through a gear transmission mechanism, a belt transmission mechanism or a chain transmission mechanism, thereby driving the two rotating shafts 82 to rotate in opposite directions, thereby realizing the two support rods 81 to move closer to or farther away from each other.

[0091] The unloading device is located below the support rod assembly, and includes an unloading drive mechanism and a roller assembly that can be driven by the unloading drive mechanism to circulate. Generally speaking, the roller assembly can adopt a conventional roller feeder in the prior art. Specifically, the unloading drive mechanism includes an unloading drive motor 85, and the roller assembly includes two groups of sprocket mechanisms arranged side by side and a plurality of roller barrels 861 arranged in sequence along the feeding direction. The two groups of sprocket mechanisms are arranged at both ends of the length direction of each roller barrel 861. Each group of sprocket mechanisms includes two or more sprockets 862 arranged along the conveying direction and a transmission chain 863 wound around the sprocket 862. The two ends of each roller barrel 861 are respectively connected to the transmission chains 863 of the two groups of sprocket mechanisms, and are driven to move by the transmission chains 863. The length direction of the roller 861 is consistent with the length direction of the paper bag a with the cover body b, and the distance between two adjacent rollers 861 is smaller than the outer diameter of the cover body b, so that the paper bag a with the cover body b can be supported by the two adjacent rollers 861 after it falls. The two sprockets 862 of the two sets of sprocket mechanisms on the same side are connected by a rotating shaft, and the unloading drive motor 85 is connected to the sprocket 862 of one set of sprocket mechanisms. When the unloading drive motor 85 is activated, the two sets of sprocket mechanisms can rotate synchronously, thereby transferring the paper bag a falling on the roller 861 to the unloading side of the roller assembly to realize unloading.

[0092] The bracket device includes a bracket driving mechanism and a bracket assembly that can be driven by the bracket driving mechanism to move up and down. Specifically, a first fixed frame 87 is provided on the frame 10 below the roller assembly, and the bracket driving mechanism includes a first lifting cylinder 891, which is provided on the first fixed frame 87. The bracket assembly is in the shape of a long strip as a whole, and its length direction is consistent with the extension direction of the roller barrel 861. The middle part of the bracket assembly is connected to the power output end of the first lifting cylinder 891, and driven by the first lifting cylinder 891, the bracket assembly can reciprocate in the up and down directions. Specifically, the width dimension of the bracket assembly is smaller than the gap between two adjacent roller barrels 861, and the bracket assembly can pass upward through the gap between two adjacent roller barrels 861 of the unloading device and approach the support rod 81, so as to receive the paper bag a dropped from the support rod 81.

[0093] Considering that the support rod 81 and the paper bag a placed thereon are in an inclined state, in order to adapt to this and to more stably receive the paper bag a, the bracket assembly includes a bracket body 88 and a bracket support frame 880 located below the bracket body 88, and the bracket body 88 and the bracket support rod 81 are both long strips and extend in the same direction. The power output end of the first lifting cylinder 891 is connected to the middle of the bracket support frame 880. The first end of the bracket support frame 880 or a position adjacent to the first end is rotatably connected to the bracket body 88 through a pin extending left and right. The second end of the bracket support frame 880 or a position adjacent to the second end is provided with a third lifting cylinder 892, the power output end of the third lifting cylinder 892 moves in the up and down direction, and is also rotatably connected to the bracket body 88 through a pin extending left and right, wherein the bracket body 88 is also provided with a slide groove 883 extending along its length direction, and the above-mentioned pin is slidably limited in the slide groove 883. The first end of the bracket support frame 880 is an end corresponding to the bag opening of the paper bag a, and the second end is an end corresponding to the bottom of the paper bag a. When receiving the material, the bracket assembly moves upward through the gap between the two adjacent rollers 861 of the unloading device to a position adjacent to the support rod 81, and then, driven by the third lifting cylinder 892, the second end of the bracket body 88 deflects upward relative to the bracket support frame 880 until its inclination direction is basically consistent with the inclination direction of the support rod 81. Since the inclination directions of the two are consistent, after the paper bag a falls on the bracket body 88, it is not easy to fall off the bracket body 88, thereby ensuring the stability of the material receiving.

[0094] After the paper bag a falls on the bracket assembly, the bracket assembly is driven by the first lifting cylinder 891 to move downward. During the downward movement, the bracket assembly can pass through the gap between two adjacent roller barrels 861 of the unloading device. When passing through the gap between two adjacent roller barrels 861 of the unloading device and continuing to move downward, the paper bag a with the cover body b falls on the two roller barrels 861. After the paper bag a falls on the roller assembly, the cyclic rotation of the roller assembly drives the paper bag a to move to the corresponding material collection position, thereby realizing the transfer and collection of the paper bag a.

[0095] The bottom of the bracket support frame 880 is also provided with at least two guide rods 881 extending downward, and the first fixed frame 87 is provided with guide holes for each guide rod 881 to pass through. Specifically, there are two guide rods 881 in this embodiment, and the two guide rods 881 are respectively located on both sides of the first lifting cylinder 891. After the above two guide rods 881 are provided, the stability of the bracket assembly moving up and down can be effectively guaranteed. The bracket body 88 defines a mounting groove with an open top, and a magnet 882 is provided in the mounting groove for attracting the paper bag a with the cover body b. After the paper bag a with the cover body b falls from the support rod to the bracket body 88, it can be firmly adsorbed by the magnet 882, thereby preventing the paper bag a from detaching from the bracket when it falls onto the bracket.

[0096] The working process of the paper bag packaging equipment is as follows: including the steps of cover counting, paper bag transfer, cover bagging, sealing packaging and unloading operation. In the cover counting and conveying step, the cover b is conveyed forward through the conveying channel 200 of the conveying frame 2, wherein the middle channel section 202 is vertically extended, and the cover b is tightly stacked under the action of gravity, and the power of forward conveying is provided by the feeding wheel 222 of the feeding mechanism 22. Two synchronously rotating screws 3 are arranged at the end of the second channel section 203 of the conveying channel 200. The rotating groove arranged on the screw 3 is designed to allow only one cover b to pass through each rotation. The number of covers b passing through is indirectly calculated by detecting the number of rotations of the screw 3 by the rotary encoder 13 to ensure the counting accuracy. Of course, in the counting process, conventional counting sensors such as infrared sensors are also used as an auxiliary to verify the counting results of the rotary encoder 13 to avoid errors caused by mechanical vibration or high-speed operation. When the cover b reaches the preset number, the stack of cover b that has been counted enters the feeding channel 40 of the loading device. The pushing mechanism includes a first pushing assembly 441 and a second pushing assembly 442. The first pushing assembly 441 (corresponding to the rear feeding section 402) pushes the cover body b to the front feeding section 401 through a rodless cylinder. The second pushing assembly 442 (corresponding to the front feeding section 401) pushes against the middle of the cover body b through a pushing rod 4423, and pushes it into the guide channel 510 of the feeding guide plate assembly 5 along the inclined feeding channel 40. The two guide plates 51 of the feeding guide plate assembly 5 form the guide channel 510. After the stacked cover body b enters the guide channel 510, it is driven by the feeding drive mechanism 54 to extend the front end of the feeding guide plate assembly 5 into the paper bag a. The second pushing mechanism of the pushing mechanism continues to move, pushing the stacked cover body b to move forward along the guide channel 510 and finally enter the paper bag a, completing the bagging action. During the bagging process, the bag pressing clamp 71 of the bag pressing clamp assembly presses down the lower edge of the bag opening of the paper bag a, and the blowing pipe of the blowing device blows air into the paper bag a to ensure that the bag opening is fully opened. Subsequently, the pressing rod 751 of the packaging device presses down the bag opening, and the sealing assembly folds the sealing portion a1 of the paper bag a upwards to a certain angle through the roller 761, and then drives the lower pressing plate 771 to deflect downward through the bag pressing assembly, so that the sealing portion a1 of the paper bag a folded upwards is further folded and abuts against the top of the main body of the paper bag a, thus completing the sealing action. Finally, the bracket of the receiving device moves upward and approaches the paper bag a on the support rod assembly 80 under the drive of the bracket driving mechanism. The support rod assembly 80 is separated after the packaging of paper bag a is completed, and paper bag a falls onto the bracket. The magnet 882 on the bracket can effectively adsorb paper bag a to prevent paper bag a from falling off. The bracket receives paper bag a and moves downward. During the downward movement, the bracket can pass through the gap between two adjacent rollers 861 of the feeding device. When passing through the gap between two adjacent rollers 861 of the feeding device and continuing to move downward, paper bag a equipped with cover body b falls on the two rollers 861.After the paper bag a falls on the roller assembly, the cyclic rotation of the roller assembly drives the paper bag a to move to the corresponding material receiving position, thereby realizing the transfer and receiving of the paper bag a.

Claims

1. A paper bag packaging device, comprising: The frame (10) has a packaging position (100), and the packaging position (100) is provided with a packaging device for sealing and packaging a paper bag equipped with a cover body (b); A cover loading device comprises a feeding rack (4) and a pushing mechanism, wherein the feeding rack (4) is provided with a feeding channel (40), and the pushing mechanism can act on the covers (b) stacked on the feeding channel (40) and push the covers (b) forward along the feeding channel (40); The invention is characterized in that: the feeding channel (40) gradually tilts upward along the forward direction of the cover body (b); a suction cup feeding device is also provided on the frame (10), the suction cup feeding device comprises a suction cup (640) and a suction cup movement mechanism; the suction cup (640) can be driven by the suction cup movement mechanism to suck up a paper bag from a paper bag placement area away from the packaging position (100) and move the paper bag to the packaging position (100); the paper bag moved to the packaging position (100) can be adjusted in posture by the suction cup movement mechanism and be in a loading state: the opening of the paper bag faces the side where the outlet of the feeding channel (40) is located, and the paper bag gradually tilts upward from its opening position to its bag bottom position.

2. The paper bag packaging equipment according to claim 1, characterized in that: A feeding platform (41) is provided on the frame (10), the feeding frame (4) is provided on the feeding platform (41), the feeding platform (41) has a first end adjacent to the packaging position (100) and a second end away from the packaging position (100), and the height position of the first end of the feeding platform (41) is higher than the height position of the second end of the feeding platform (41).

3. The paper bag packaging equipment according to claim 2, characterized in that: A first height-adjusting rod assembly (42) for supporting the feeding platform (41) and capable of adjusting the height of the first end of the feeding platform (41) is provided on the frame (10) at a position corresponding to the first end of the feeding platform (41); and a second height-adjusting rod assembly (43) for supporting the feeding platform (41) and capable of adjusting the height of the second end of the feeding platform (41) is provided on the frame (10) at a position corresponding to the second end of the feeding platform (41).

4. The paper bag packaging equipment according to claim 2, characterized in that: The outlet of the feeding channel (40) is also provided with a feeding guide plate assembly (5) for receiving the stacked cover bodies (b) pushed from the feeding channel (40) and transferring the stacked cover bodies (b) to the paper bag at the packaging position (100). The feeding guide plate assembly (5) comprises two guide plates (51) extending along the feeding direction of the whole stacked cover bodies (b) and arranged relatively on both sides of the outlet of the feeding channel (40). A guide channel (510) for the cover bodies (b) to pass through is formed between the two guide plates (51), and a guide plate (510) is formed between the first ends of the two guide plates (51). An outlet of the guide channel (510) is formed between the inlet and the second end of the channel (510); the outlet of the loading guide plate assembly (5) can move toward the paper bag located on the packaging position (100) and extend its end where the outlet is located into the paper bag; when the cover body (b) to be packaged is located in the guide channel (510) and is driven by the pushing mechanism to move along the guide channel (510), the ends where the outlets of the two guide plates (51) are located can move away from each other to open the bag opening, thereby allowing the stacked cover bodies (b) in the guide channel (510) to enter the paper bag.

5. The paper bag packaging equipment according to claim 4, characterized in that: The feeding guide plate assembly (5) also includes a mounting seat (52) for mounting the guide piece (51) and a feeding drive mechanism (54) for driving the mounting seat (52) to move forward and backward. The two guide pieces (51) are rotatably mounted on the mounting seat (52) near the middle and the rotation axis (82) extends vertically. In a natural state, the spacing between the second ends of the two guide pieces (51) is smaller than the spacing between the first ends, so that the opening of the outlet is smaller than the opening of the inlet.

6. The paper bag packaging equipment according to claim 4, characterized in that: The feeding channel (40) of the feeding rack (4) comprises a rear feeding section (402) and a front feeding section (401) which are arranged in sequence from the back to the front, and the pushing mechanism comprises a first pushing component (441) for pushing the stacked cover bodies (b) along the rear feeding section (402) to the front feeding section (401) and a second pushing component (442) for pushing the stacked cover bodies (b) along the front feeding section (401) to the guide channel (510) and continuing to push them along the guide channel (510) to the paper bag located at the packaging position (100).

7. The paper bag packaging equipment according to any one of claims 2 to 6, characterized in that: The suction cup movement mechanism comprises a longitudinal movement mechanism, a transverse movement mechanism and a lifting movement mechanism. The longitudinal movement mechanism is arranged on the frame (10), the transverse movement mechanism is 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 driven by the transverse movement mechanism to move back and forth in the transverse direction. The power output end of the lifting movement mechanism is also provided with a rotating cylinder (632) and a suction cup bracket (64) connected to the power output end of the rotating cylinder (632). The suction cup bracket (64) can be driven by the rotating cylinder (632) to rotate around a transversely extending axis. The suction cup (640) is arranged on the suction cup bracket (64) and can be driven by the lifting movement mechanism to suck the paper bag on the feeding platform (41) and then move it upward.

8. The paper bag packaging equipment according to claim 7, characterized in that: It also includes a bag pressing clamp assembly arranged on the frame (10) or the feeding platform (41), the bag pressing clamp assembly including a bag pressing clamp (71) and a bag pressing movement mechanism (72), the bag pressing clamp (71) can be driven by the bag pressing movement mechanism (72) to extend into the bag opening of the paper bag and press downwards the lower side edge of the bag opening.

9. The paper bag packaging equipment according to any one of claims 1 to 6, characterized in that: A paper bag stop assembly is also provided at the packaging position (100) of the frame (10), and the paper bag stop assembly comprises a stop member (741) and a stop driving mechanism (742). The stop member (741) can be driven by the stop driving mechanism (742) to move toward the position of the bag opening of the paper bag, and then stop at the rear side of the edge of the bag opening of the paper bag.

10. The paper bag packaging equipment according to any one of claims 1 to 6, characterized in that: The packaging device comprises: A pressure rod assembly, comprising a pressure rod (751) and a pressure rod driving mechanism, wherein the pressure rod (751) extends in the width direction of the paper bag and can be driven by the pressure rod driving mechanism to press downward on the bag opening of the paper bag, the position of the paper bag pressed by the pressure rod (751) is at a certain distance from the edge of the bag opening of the paper bag, and the portion of the paper bag from the edge of the bag opening of the paper bag to the position pressed by the pressure rod (751) is recorded as a sealing portion (a1); A sealing assembly comprises a roller (761) and a sealing drive mechanism, wherein the roller (761) is rotatably arranged at a power output end of the sealing drive mechanism and extends along the width direction of the paper bag, and the roller (761) can be driven by the sealing drive mechanism to move upward from bottom to top, thereby acting on the bottom of the sealing portion (a1) of the paper bag and folding the sealing portion (a1) upward; The bag pressing assembly comprises a lower pressing plate (771) and a pressing plate driving mechanism. The lower pressing plate (771) can be driven by the pressing plate driving mechanism to further fold the sealing portion (a1) of the paper bag folded upward and abut against the top of the main body of the paper bag.

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