Ultrahigh-speed automatic bag folding machine

Abstract

The utility model discloses an ultrahigh-speed automatic bag folding machine which comprises a machine body, a bag folding mechanism and a feeding mechanism. The machine body is provided with a bag stacking station used for containing a material frame. The bag folding mechanism is arranged above the bag folding station; the bag folding mechanism comprises a lifting assembly and a swing arm assembly. The lifting assembly comprises a lifting driving structure, a lifting transmission structure and a mounting plate; the lifting transmission structure comprises a ball screw and a ball nut, the ball screw is rotationally connected to the machine body, and the ball nut is arranged in the circumferential direction of the ball screw in a sleeving mode; the mounting plate is fixed with the ball nut; the lifting driving structure provides power to drive the ball nut to move relative to the axis of the ball screw and drive the mounting plate to lift; the swing arm assembly is mounted on the mounting plate and used for swinging and outputting the packaging bags to the material frame; the feeding mechanism is used for continuously conveying the continuous small bags to the swing arm assembly. According to the utility model, the connected small bags can be automatically folded and placed in a material frame or a material box according to a certain stacking rule, and the bag stacking quality is high.

Description

Technical Field

[0001] The utility model relates to a packaging bag stacking device, in particular to an ultra-high-speed automatic bag stacking machine. Background Art

[0002] At present, in the field of food packaging, after packaging products such as seasoning packets and candies, they are output in the form of continuous small bags, and are transferred through a material frame after output. However, when outputting, if they are directly dropped into the material frame for transportation, if the continuous small bags cannot be stacked, the occupied space in the material frame after output is relatively large, and the space on the material frame cannot be effectively utilized. Secondly, the discharging accuracy of the discharging port of the existing bag stacking machine for continuous small bags is poor, and the bag stacking effect is not good. Content of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide an ultra-high-speed automatic bag stacking machine, which can automatically fold and place continuous small bags into a material frame or a material box according to a certain stacking rule, and has high bag stacking quality.

[0004] The purpose of the utility model is realized by adopting the following technical solutions:

[0005] An ultra-high-speed automatic bag stacking machine, characterized in that it includes a machine body, a bag stacking mechanism and a feeding mechanism;

[0006] A bag stacking station is provided on the machine body; the bag stacking station is used for placing a material frame;

[0007] The bag stacking mechanism is arranged above the bag stacking station; the bag stacking mechanism includes a lifting component and a swing arm component; the lifting component is installed on the machine body, the lifting component includes a lifting drive structure, a lifting transmission structure and a mounting plate; the lifting transmission structure includes a ball screw and a ball nut, the ball screw is rotatably connected to the machine body, the ball nut is sleeved on the circumferential direction of the ball screw; the mounting plate is fixed to the ball nut; power is provided by the lifting drive structure to drive the ball nut to move relative to the axis of the ball screw, so as to drive the mounting plate to move in the height direction; the swing arm component is installed on the mounting plate, and the swing arm component is used for swinging and outputting packaging bags to the material frame.

[0008] The feeding mechanism is used for continuously conveying continuous small bags to the swing arm component.

[0009] In an optional implementation manner, the lifting component further includes a limit switch and a limit signal sending block, the two limit switches are respectively arranged near both ends of the ball screw, and the limit signal sending block is arranged on the ball nut; when the ball nut drives the limit signal sending block to move to the trigger position of the limit switch, the limit signal sending block sends a limit signal to the main control system to limit further displacement of the ball nut.

[0010] In an alternative embodiment, the lifting assembly further includes a proximity switch, which is disposed near the middle of the ball screw; when the ball nut drives the limit signal sending block to move to the triggering position of the proximity switch, the limit signal sending block sends a proximity signal to the main control system.

[0011] In an alternative embodiment, the lifting assembly further includes an adjusting member, which is installed on the machine body and disposed near the ball screw; a sensor adjusting groove is formed on the adjusting member.

[0012] The limit switch and / or the proximity switch are respectively slidably connected to the sensor adjusting groove through a switch bracket; a locking member is provided on the switch bracket, and the locking member is used to fix the relative positions of the limit switch and / or the proximity switch and the adjusting member.

[0013] In an alternative embodiment, the machine body includes a protective box body, an installation cavity for installing the lifting assembly is formed inside the protective box body, a pulling groove is formed on one side of the installation cavity, the connection part of the ball nut and the installation plate passes through the pulling groove, and a door plate is installed on the other side through a hinge.

[0014] In an alternative embodiment, the lifting drive structure includes a motor bracket, a servo motor and a synchronous belt gear set. The servo motor is installed on the machine body through the motor bracket. The servo motor has an output shaft, and the output shaft of the servo motor is connected to the end of the ball screw through the synchronous belt gear set.

[0015] In an alternative embodiment, a tensioning support block is fixed on the motor bracket, a tensioning tooth plate is fixed on the machine body, an adjustment gap is formed between the tensioning support block and the tensioning tooth plate, and the tensioning support block and the tensioning tooth plate are connected by a screw; by rotating the screw, the adjustment gap is enlarged or reduced to adjust the relative positions of the output shaft of the servo motor and the end of the ball screw.

[0016] In an alternative embodiment, the swing arm assembly includes a swing arm and a swing arm driving member. The swing arm is rotatably installed on the installation plate; the swing arm driving member is used to drive the swing arm to rotate; a through cavity is provided inside the swing arm, a feeding port is provided at the top end of the through cavity, and a discharging port is provided at the bottom end of the through cavity; the discharging port is used to output the packaging bag to the material box during the rotation of the swing arm.

[0017] In an alternative embodiment, the feeding mechanism includes a feeding roller, a discharging roller, and a plurality of guiding rollers. The feeding roller and the discharging roller are both pivotally connected to the machine body. The plurality of guiding rollers are pivotally connected to the machine body and are located between the feeding roller and the discharging roller. The plurality of guiding rollers are spaced apart in the rotational direction of the feeding roller. The feeding roller is used for winding the connected small bags. The plurality of guiding rollers are used for supporting the packaging bags output by the feeding pipe to guide the connected small bags to be continuously conveyed to the discharging roller. The discharging roller winds the connected small bags output by the guiding rollers and guides the connected small bags to the feeding port.

[0018] A cutting mechanism is further provided on the machine body. The cutting mechanism is arranged between the discharging roller and the feeding port. The cutting mechanism is used for cutting the connected small bags.

[0019] A length detector is provided below the discharging roller. The length detector is used for detecting the single-pack length of the connected small bags output by the discharging roller and sending a length signal. The cutting mechanism is used for receiving the length signal and performing cutting according to the length signal.

[0020] In an alternative embodiment, a storage tank and a storage conveying mechanism are provided on the machine body. The storage tank is located below the feeding roller. The storage conveying mechanism is used for conveying the connected small bags into the storage tank.

[0021] A frame preparation station, a frame pushing mechanism, and a frame output mechanism are provided on the machine body. The frame preparation station is located on one side of the bag stacking station. The frame pushing mechanism is used for pushing the frame at the frame preparation station to the bag stacking station so that the frame at the bag stacking station is pushed to the frame output mechanism.

[0022] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0023] For the ultra-high-speed automatic bag stacking machine of the present utility model, the connected small bags are conveyed to the through-connection cavity of the swing arm by the feeding mechanism. During the swinging process of the swing arm, the connected small bags can be stacked layer by layer in the frame or the box. During this process, the swing arm assembly is driven to rise and fall by the lifting transmission structure. By setting the lifting transmission structure as a ball screw and a ball nut to drive the mounting plate and the swing arm assembly to rise and fall, using its point-contact rolling motion, the friction resistance during the lifting process is small, the lifting sensitivity of the bag stacking machine is improved, and there is no tremor during startup and no crawling phenomenon at low speed, better adapting to the height supply mode of the swing arm assembly during the bag stacking process, and being able to precisely control the micro-feed, thereby improving the height control accuracy at the discharging port of the connected small bags, so that the height of the discharging port of the connected small bags can adapt to the stacking height of the connected small bags in the frame for timely feedback and adjustment, improving the bag stacking quality and stacking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1Schematic structural diagram of the ultra-high-speed automatic bag stacking machine of Embodiment 1;

[0025] Figure 2 Schematic structural diagram of the ultra-high-speed automatic bag stacking machine of Embodiment 1 from another angle;

[0026] Figure 3 Top view of the ultra-high-speed automatic bag stacking machine of Embodiment 1;

[0027] Figure 4 Schematic structural diagram of the lifting assembly of the ultra-high-speed automatic bag stacking machine of Embodiment 1;

[0028] Figure 5 Schematic structural diagram of the lifting assembly of the ultra-high-speed automatic bag stacking machine of Embodiment 1 from another angle;

[0029] Figure 6 Top view of the lifting assembly of the ultra-high-speed automatic bag stacking machine of Embodiment 1.

[0030] In the figure: 10, machine body; 11, bag stacking station; 12, frame preparation station; 21, lifting assembly; 211, mounting plate; 212, ball screw; 213, ball screw nut; 214, limit switch; 215, limit signal sending block; 216, proximity switch; 217, adjusting part; 218, motor bracket; 219, servo motor; 231, synchronous belt gear set; 232, tensioning support block; 233, tensioning tooth plate; 22, swing arm assembly; 30, feeding mechanism; 40, storage and conveying mechanism; 50, storage tank; 60, frame pushing mechanism; 70, cutting knife mechanism. Detailed implementation manners

[0031] Next, in combination with the drawings and the detailed implementation manners, the present utility model will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments. Except as otherwise specifically stated, the materials and equipment used in this embodiment can be purchased from the market. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0032] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically and precisely defined.

[0033] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "connected", "communicated", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, or can be connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0034] The terms "first", "second", etc. in the description, claims and drawings of the present application are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0035] Embodiment 1:

[0036] Please refer to Figure 1-6 , this embodiment provides a super-high-speed automatic bag stacking machine, including a machine body 10, a bag stacking mechanism, and a feeding mechanism 30;

[0037] The machine body 10 mainly plays a supporting role and provides an installation basis for other components of this equipment. A bag stacking station 11 is provided on the machine body 10, and this bag stacking station 11 is used to place a material frame or a material box. The bag stacking mechanism of this embodiment is arranged above the bag stacking station 11.

[0038] Specifically, the bag stacking mechanism includes a lifting component 21 and a swing arm component 22; the lifting component 21 is installed on the machine body 10, and the lifting component 21 includes a lifting drive structure, a lifting transmission structure and a mounting plate 211; the lifting transmission structure includes a ball screw 212 and a ball nut 213, the ball screw 212 is arranged vertically, the upper end of the ball screw 212 is connected to the machine body 10 through a fixed-end bearing seat, and the lower end is connected to the machine body 10 through a support-end bearing with a seat. The ball nut 213 is sleeved on the circumference of the ball screw 212; one side of the mounting plate 211 is fixed to the ball nut 213 through a ball nut seat and a connecting arm; the power provided by the lifting drive structure transmits torque to the ball screw 212, driving the ball nut 213 to move relative to the axis of the ball screw 212, thereby driving the mounting plate 211 to move in the height direction of the machine body 10; the swing arm component 22 includes a swing arm and a swing arm drive member, and the swing arm is rotatably installed on the mounting plate 211; the swing arm drive member is used to drive the swing arm to rotate; a through cavity is provided in the swing arm, a feeding port is provided at the top end of the through cavity, and a discharging port is provided at the bottom end of the through cavity. The discharging port can output the connected small bags to the material box during the rotation of the swing arm. And the above-mentioned feeding mechanism 30 can continuously convey the connected small bags to the feeding port.

[0039] On the basis of the above structure, when using the ultra-high-speed automatic bag stacking machine of the present invention, the packaging bags are conveyed to the feeding port of the swing arm component 22 in the state of connected small bags through the feeding mechanism 30, guided to the through cavity through the feeding port, and under the action of its own gravity, the connected small bags can be continuously output through the discharging port. Since the connected small bags are in a strip shape, they are continuously output under the action of gravity, and at the same time the swing arm swings, the swing arm swings from one side of the bag stacking station 11 to the other side. At the same time, the connected small bags can be stacked from one side to the other under their own gravity. In this way, the connected small bags can be stacked layer by layer in the material box or the material bin during the swinging process of the swing arm component 22. And during this process, the lifting component 21 drives the mounting plate 211 to move in the height direction, thereby controlling the height of the swing arm component 22, so that it gradually rises or falls with the stacking height of the connected small bags in the material box, driving the distance between the swing arm component 22 and the bag stacking station to change, and adjusting the stacking height in a timely manner; by setting the lifting transmission structure as the way of driving the mounting plate 211 to lift by the ball screw 212 and the ball nut 213, due to the point-contact rolling motion characteristics of the lifting transmission structure, the friction resistance during the lifting process is small, the lifting sensitivity of the bag stacking machine is improved, and there is no tremor during startup and no crawling phenomenon at low speed, which can adapt to the height supply mode of the swing arm component 22 during the bag stacking process, and can precisely control the micro-feed, thereby improving the height control accuracy of the discharging port of the connected small bags, so that the height of the discharging port of the connected small bags can adapt to the stacking height of the connected small bags in the material box for timely feedback and adjustment, improving the bag stacking quality and stacking efficiency.

[0040] Further, the lifting assembly 21 of this embodiment further includes an adjusting member 217. The adjusting member 217 is arranged in the same direction as the ball screw 212 and is close to the ball screw 212. One side of the adjusting member 217 is fixed to the body 10, and the other side is provided with a sensor adjusting groove for installing various sensors. The sensors of this embodiment include two limit switches 214 and a proximity switch 216.

[0041] The sensors are slidably connected to the sensor adjusting groove through a switch bracket. A locking member is arranged on the switch bracket. The locking member is used to fix the relative position of the sensor and the adjusting member 217. By moving the switch bracket in the sensor adjusting groove, the position of the sensor can be adjusted. After the adjustment is completed, the position of the sensor can be fixed through the locking member.

[0042] The two limit switches 214 are respectively arranged close to both ends of the ball screw 212. A limit signal sending block 215 adapted to the limit switch 214 is fixed on the ball nut 213. When the ball nut 213 drives the limit signal sending block 215 to move to the triggering position of the limit switch 214, the limit signal sending block 215 sends a limit signal to the main control system to limit the further displacement of the ball nut 213, thereby realizing the electronic limit of the swing arm assembly 22 on the mounting plate 211.

[0043] The proximity switch 216 is arranged between the two limit switches 214. When the ball nut 213 drives the limit signal sending block 215 to move to the triggering position of the proximity switch 216, the limit signal sending block 215 sends a proximity signal to the main control system.

[0044] The lifting drive structure of this embodiment includes a motor bracket 218, a servo motor 219 and a synchronous belt gear set 231. The servo motor 219 is installed on the body 10 through the motor bracket 218. The servo motor 219 has an output shaft, and the output shaft of the servo motor 219 is connected to the end of the ball screw 212 through the synchronous belt gear set 231. By providing power through the servo motor 219, the torque is transmitted to the ball screw 212 through the synchronous belt gear set 231, driving the ball screw 212 to rotate, causing the ball nut 213 to move back and forth on the ball screw 212, driving the lifting of the mounting plate 211 and the swing arm assembly 22.

[0045] Specifically, motor support plates are respectively provided on both sides of the bottom of the motor bracket 218, the side of the motor support plate is fixedly connected to the machine body 10, and the top is connected to the motor bracket 218; a slide groove and a bolt are provided between the motor bracket 218 and the motor support plate, so that the motor bracket 218 can drive the servo motor 219 to move a short distance relative to the machine body 10. A tension support block 232 is fixed on the motor bracket 218, and a tensioning tooth plate 233 is fixed on the machine body 10. An adjustment gap is formed between the tension support block 232 and the tensioning tooth plate 233, and the tension support block 232 and the tensioning tooth plate 233 are connected by a screw; the adjustment gap is enlarged or reduced by rotating the screw, and the relative position of the output shaft of the servo motor 219 and the end of the ball screw 212 is adjusted, so as to adjust the tension of the synchronous belt gear set 231.

[0046] The machine body 10 of this embodiment includes a protective box, and a mounting cavity for mounting the lifting assembly 21 is formed inside the protective box. A draw groove is provided on one side of the mounting cavity, and the draw groove is used for the connecting arm at the connection between the ball screw nut 213 and the mounting plate 211 to extend and rise and fall, and a door panel is installed on the other side through a hinge. The protective box is provided to protect the lifting drive structure, lifting transmission structure and various sensors of the lifting assembly 21, and to prevent interference during the bag stacking process.

[0047] In some other preferred embodiments, the feeding mechanism 30 includes a feed roller, a discharge roller, and a plurality of guide rollers, the feed roller and the discharge roller are both pivotally connected to the machine body 10, the plurality of guide rollers are both pivotally connected to the machine body 10, and the plurality of guide rollers are located between the feed roller and the discharge roller, and the plurality of guide rollers are spaced apart in the rotation direction of the feed roller. Specifically, the feed roller is used to wrap the small bags, and the plurality of guide rollers are used to support the small bags output by the feed pipe to guide the small bags to be continuously transported to the discharge roller; the discharge roller wraps the small bags output by the guide roller and guides the small bags to the feed port.

[0048] It should be noted that the rotational power of the above-mentioned feed roller, guide roller and discharge roller is provided by a motor. During the rotation of the motor, the feed roller, guide roller and discharge roller can continuously pull the small bags in a continuous package and continuously transport them.

[0049] On the basis of the above structure, the connected small bags can be rolled up by the feed roller. When the feed roller rotates, the connected small bags can be continuously transported to multiple guide rollers. During the rotation of the multiple guide rollers, the strip-shaped connected small bags can be continuously output and tensioned and output through the discharge roller to the feed port of the connection cavity. The connected small bags can then be continuously transported by multiple rollers.

[0050] The machine body 10 is also provided with a cutting knife mechanism 70, and the cutting knife mechanism 70 can be arranged between the discharging roller and the feeding port. In this way, after the connected small bags in a material box at the stacking station are stacked full, the cutting knife mechanism 70 can be used to cut off the connected small bags, which is convenient for stacking in different material boxes.

[0051] More specifically, a length detector can be arranged below the discharging roller. The length detector can detect the single-pack length of the connected small bags output by the discharging roller and send a length signal; the cutting knife mechanism 70 is used to receive the length signal and perform cutting according to the length signal.

[0052] Furthermore, in the machine body 10 of this embodiment, there are also provided a storage tank 50 and a storage material conveying mechanism 40. The storage tank 50 is located below the feeding roller; the storage material conveying mechanism 40 is used to convey the connected small bags into the storage tank 50. In this way, when feeding, the external connected small bags can be first conveyed into the storage tank 50 through the storage material conveying mechanism 40, and the connected small bags in the storage tank 50 can be continuously conveyed by the feeding roller of the feeding mechanism 30, that is, a certain amount of connected small bags can be stored in the storage tank 50, improving the continuity of the bag stacking operation.

[0053] In the machine body 10 of this embodiment, there are provided a spare box station 12, a box pushing mechanism 60 and a box output mechanism. The spare box station 12 is located on one side of the bag stacking station 11, and the box pushing mechanism 60 is used to push the material box at the spare box station 12 to the bag stacking station 11, so that the material box at the bag stacking station 11 is pushed to the box output mechanism. That is, when performing the bag stacking operation in the material box at the bag stacking station 11, a spare material box can be placed at the spare box station 12 at the same time. After the material box at the bag stacking station 11 is stacked full, the spare material box can be pushed to the bag stacking station 11 through the box pushing mechanism 60, and at the same time, the material box at the bag stacking station 11 is pushed to the box output mechanism for output, making the continuity of the bag stacking operation higher.

[0054] It should be noted that the box pushing mechanism 60 can include a push plate and a push plate cylinder, and the push plate cylinder drives the push plate to reciprocate to achieve the box pushing operation. And the above box output mechanism can also be selected as a roller conveying mechanism in the prior art to achieve. Although only some components and embodiments of the present application have been illustrated and described, without actually departing from the scope and spirit of the claims, those skilled in the art can think of many modifications and changes (for example, changes in the size, dimensions, structure, shape and ratio of each component, installation arrangement, material use, color, orientation, etc.).

[0055] Finally, it should be noted that the above embodiments are only the preferred embodiments of the present invention, and the scope of protection of the present invention cannot be limited by this. Any non-substantive changes and substitutions made by those skilled in the art based on the present invention belong to the scope of protection required by the present invention.

Claims

1. An ultra-high-speed automatic bag stacking machine, characterized in that: It includes a machine body, a bag stacking mechanism and a feeding mechanism; The machine body is provided with a bag stacking station; the bag stacking station is used to place the material frame; The bag stacking mechanism is arranged above the bag stacking station; the bag stacking mechanism includes a lifting assembly and a swing arm assembly; the lifting assembly is installed on the machine body, and the lifting assembly includes a lifting drive structure, a lifting transmission structure and a mounting plate; the lifting transmission structure includes a ball screw and a ball nut, the ball screw is rotatably connected to the machine body, and the ball nut is sleeved on the circumference of the ball screw; the mounting plate is fixed to the ball nut; the lifting drive structure provides power to drive the ball nut to move relative to the axis of the ball screw, thereby driving the mounting plate to move in the height direction; the swing arm assembly is installed on the mounting plate, and the swing arm assembly is used to swing the packaging bag to output it to the material frame; The feeding mechanism is used for continuously conveying the connected small bags to the swing arm assembly.

2. The ultra-high-speed automatic bag stacking machine according to claim 1, characterized in that: The lifting assembly also includes a limit switch and a limit signaling block. The two limit switches are respectively arranged near the two ends of the ball screw, and the limit signaling block is arranged on the ball screw nut. When the ball screw nut drives the limit signaling block to move to the trigger position of the limit switch, the limit signaling block sends a limit signal to the main control system to limit the further displacement of the ball screw nut.

3. The ultra-high-speed automatic bag stacking machine according to claim 2, characterized in that: The lifting assembly also includes a proximity switch, which is arranged near the middle of the ball screw. When the ball screw nut drives the limit signal block to move to the trigger position of the proximity switch, the limit signal block sends a proximity signal to the main control system.

4. The ultra-high-speed automatic bag stacking machine according to claim 3, characterized in that: The lifting assembly further comprises an adjusting member, which is mounted on the machine body and arranged close to the ball screw; a sensor adjusting slot is provided on the adjusting member; The limit switch and / or proximity switch are respectively slidably connected to the sensor adjustment slot via a switch bracket; a locking member is provided on the switch bracket, and the locking member is used to fix the relative position of the limit switch and / or proximity switch and the adjustment member.

5. The ultra-high-speed automatic bag stacking machine according to claim 1, characterized in that: The machine body comprises a protective box body, an installation cavity for installing a lifting assembly is formed inside the protective box body, a groove is provided on one side of the installation cavity, a connection between the ball screw nut and the installation plate passes through the groove, and a door panel is installed on the other side through a hinge.

6. The ultra-high-speed automatic bag stacking machine according to claim 1, characterized in that: The lifting drive structure includes a motor bracket, a servo motor and a synchronous belt gear set. The servo motor is installed on the machine body through the motor bracket. The servo motor has an output shaft. The servo motor output shaft is connected to the end of the ball screw through a synchronous belt gear set.

7. The ultra-high-speed automatic bag stacking machine according to claim 6, characterized in that: A tensioning support block is fixed on the motor bracket, a tensioning tooth plate is fixed on the machine body, an adjustment gap is formed between the tensioning support block and the tensioning tooth plate, and the tensioning support block and the tensioning tooth plate are connected by a screw; the adjustment gap is enlarged or reduced by rotating the screw, and the relative position of the servo motor output shaft and the end of the ball screw is adjusted.

8. The ultra-high-speed automatic bag stacking machine according to claim 1, characterized in that: The swing arm assembly includes a swing arm and a swing arm driving component, the swing arm is rotatably mounted on a mounting plate; the swing arm driving component is used to drive the swing arm to rotate; a connecting cavity is provided in the swing arm, a material inlet is provided at the top of the connecting cavity, and a material outlet is provided at the bottom of the connecting cavity; the material outlet is used to output the packaging bag to the material frame during the rotation of the swing arm.

9. The ultra-high-speed automatic bag stacking machine according to claim 8, characterized in that: The feeding mechanism comprises a feed roller, a discharge roller and a plurality of guide rollers, the feed roller and the discharge roller are both pivotally connected to the machine body; the plurality of guide rollers are both pivotally connected to the machine body and are located between the feed roller and the discharge roller; the plurality of guide rollers are spaced apart in the rotation direction of the feed roller; the feed roller is used to wind the continuous bag; the plurality of guide rollers are used to support the packaging bags output by the feed pipe to guide the continuous bag to be continuously transported to the discharge roller; the discharge roller winds the continuous bag output by the guide roller and guides the continuous bag to the feed port; The machine body is also provided with a cutting mechanism, which is arranged between the discharging roller and the feeding port; the cutting mechanism is used to cut off the linked small bags; A length detector is provided below the discharging roller, and the length detector is used to detect the length of a single package of the connected small bags output by the discharging roller and send a length signal; the cutting mechanism is used to receive the length signal and cut according to the length signal.

10. The ultra-high-speed automatic bag stacking machine according to claim 1, characterized in that: The machine body is provided with a material storage trough and a material storage conveying mechanism, wherein the material storage trough is located below the feeding roller; the material storage conveying mechanism is used to convey the connected small bags into the material storage trough; The machine body is provided with a frame preparation station, a frame pushing mechanism and a material frame output mechanism. The frame preparation station is located on one side of the bag stacking station; the frame pushing mechanism is used to push the material frame of the frame preparation station to the bag stacking station, so that the material frame of the bag stacking station is pushed to the material frame output mechanism.

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