An automated bag making and sleeving apparatus and method thereof

The automated bag making and bag-packing equipment enables automated bag packing and cutting, solving the problems of time and labor costs in existing technologies, improving production efficiency and product quality, reducing costs and workplace injury risks, and adapting to various packaging needs.

CN119660045BActive Publication Date: 2026-07-31深圳市奥德莱智家科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
深圳市奥德莱智家科技有限公司
Filing Date
2024-12-14
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The use of existing packaging bags is time-consuming and labor-intensive, especially in the processes of setting and folding. Furthermore, some users still need to manually set the bags, which is inefficient.

Method used

An automated bag making and bagging equipment was designed, including a feeding device, a shaping vacuum cylinder, an automated bagging device, a straight pipe conveying and gripping device, a bag sealing and cutting device, and a curved pipe conveying and gripping device. Through precise control by the electrical control cabinet, the automated bag packing and cutting are realized, ensuring that the bag material remains cylindrical during processing and avoiding deformation or positional displacement.

Benefits of technology

It enables continuous and rapid bag making and bagging operations without manual intervention, improving production efficiency, ensuring product quality and consistency, reducing the risk of workplace injuries, reducing material waste and production costs, and adapting to packaging needs of different sizes and types.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses an automated bag making and bagging equipment and method, including a base and an electrical control cabinet. The base is sequentially equipped with a feeding device, a shaping vacuum cylinder, and an automated bagging device. The inner wall of the shaping vacuum cylinder is circumferentially provided with multiple suction ports for adsorbing the outer wall of the bag material to keep the bag material in a cylindrical shape. The automated bagging device includes an inner mold for bag material to be fitted. Between the shaping vacuum cylinder and the automated bagging device, there is also a straight tube conveying and gripping device for adsorbing the bag material and fitting it onto the inner mold, a sealing and cutting device for heat-sealing the end of the bag material to form a bag body and for cutting off the connection between the bag body and the bag material, and a curved tube conveying and gripping device for adsorbing the unprocessed end of the bag material to keep the bag material in a cylindrical shape. The entire process requires no manual intervention and can realize continuous and rapid bag making and bagging operations, greatly improving production efficiency.
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Description

Technical Field

[0001] This invention relates to the field of packaging equipment technology, and in particular to an automated bag making and bag-packing device and its bag making and bag-packing method. Background Technology

[0002] Currently, packaging bag products include roll styles and layered packaging styles. Taking garbage bags as an example, when using them, it is necessary to take them out from the storage area, take out one full garbage bag, put on a new garbage bag, and then fold and sort them, which involves multiple processes, which is time-consuming and labor-intensive.

[0003] Currently, some users, for convenience, invert a bucket, stack the individual bags into a stack, then place the stack of bags into the bucket and fold the edges over to secure them. When needed, they remove a full bag and continue filling the remaining ones, saving multiple actions such as taking out, placing, and sealing bags, thus improving work efficiency. However, this method still involves manual labor of stacking each bag into a stack.

[0004] This invention is based on the above circumstances. Summary of the Invention

[0005] This invention overcomes the shortcomings of the prior art and provides an automated bag making and bag-packing device and a bag making and bag-packing method thereof.

[0006] This invention is achieved through the following technical solution:

[0007] An automated bag making and bagging device includes a base and an electrical control cabinet. The base is sequentially equipped with a feeding device, a shaping vacuum cylinder, and an automated bagging device. The inner wall of the shaping vacuum cylinder is provided with multiple suction ports circumferentially for adsorbing the outer wall of the bag material to keep the bag material in a cylindrical shape. The automated bagging device includes an inner mold for the bag material to be fitted. Between the shaping vacuum cylinder and the automated bagging device, there is also a straight tube conveying and gripping device for adsorbing the bag material and fitting it onto the inner mold, a sealing and cutting device for heat-sealing the end of the bag material to form a bag body and for cutting off the connection between the bag body and the bag material, and a curved tube conveying and gripping device for adsorbing the unprocessed end of the bag material to keep the bag material in a cylindrical shape.

[0008] An automated bag-making and bag-packing device as described above includes a first mounting frame with a tensioning device base. An arc-shaped pressure strip is rotatably connected to the tensioning device base. The first mounting frame also includes a conical top block for pushing one end of the arc-shaped pressure strip to press the bag body onto the inner mold, a first servo motor for driving the conical top block to push the arc-shaped pressure strip, and a guide tube for guiding the movement of the conical top block. The output shaft of the first servo motor is connected to a lead screw. The conical top block is threadedly connected to the lead screw and slidably connected to the guide tube. A reset spring is also provided between the arc-shaped pressure strip and the tensioning device base to reset the arc-shaped pressure strip and release the bag body when the conical top block moves away from the arc-shaped pressure strip.

[0009] As described above, in an automated bag-making and bag-packing device, the inner mold is barrel-shaped, and the first mounting frame is further provided with an inner mold sleeved on a mold base.

[0010] As described above, an automated bag-making and bag-packing device includes a straight tube conveying and gripping device comprising a first annular vacuum cylinder for gripping the bag body and a first gear and rack transmission mechanism for driving the first annular vacuum cylinder to move and thereby pack the bag body onto the inner mold. The inner circumferential side of the first annular vacuum cylinder is provided with a plurality of straight tube suction nozzles for gripping the bag body.

[0011] As described above, in an automated bag making and bagging device, a first air chamber is provided inside the wall of the first annular vacuum cylinder, the straight tube nozzle is connected to the first air chamber, and the first annular vacuum cylinder is also provided with a first interface for connecting the first air chamber to a vacuum pump.

[0012] As described above, an automated bag making and bagging device includes a second mounting frame. At least two opposing bottom sealing and cutting seats are movably connected to the second mounting frame. One of the bottom sealing and cutting seats has a pressure film silicone strip, a hot melt strip, and a blade on its inner side. A second gear and rack transmission mechanism is provided between the bottom sealing and cutting seats and the second mounting frame, which can drive the pair of bottom sealing and cutting seats to close together to seal the bottom of the bag material and cut the bag material.

[0013] As described above, an automated bag making and bagging device includes a curved tube conveying and gripping device comprising a second annular vacuum cylinder for suctioning the bag body and a third gear and rack transmission mechanism for driving the second annular vacuum cylinder to move and thus drag the bag body. The second annular vacuum cylinder is circumferentially provided with a plurality of curved tube suction nozzles for suctioning the bag body.

[0014] As described above, in an automated bag making and bagging device, a second air chamber is provided inside the wall of the second annular vacuum cylinder, the bent tube suction nozzle is connected to the second air chamber, and the second annular vacuum cylinder is also provided with a second interface for connecting the second air chamber to a vacuum pump.

[0015] As described above, in an automated bag making and bagging device, a conveyor wheel for pulling the bag material and a second servo motor for driving the conveyor wheel to rotate are provided between the feeding device and the shaping vacuum cylinder.

[0016] A bag-making and bag-packing method using an automated bag-making and bag-packing device, comprising the aforementioned automated bag-making and bag-packing device, wherein the machine base is equipped with a first positioner for determining the material-picking position of the straight pipe conveyor gripping and releasing device, a second positioner for determining the material-releasing position of the straight pipe conveyor gripping and releasing device, a third positioner for determining the retraction position of the curved pipe conveyor gripping and releasing device, a fourth positioner for determining the material-picking position of the curved pipe conveyor gripping and releasing device, and a fifth positioner for determining the material-delivering position of the curved pipe conveyor gripping and releasing device; a first vacuum valve for adjusting the suction force of the straight pipe nozzle is provided between the vacuum pump and the straight pipe conveyor gripping and releasing device, and a second vacuum valve for adjusting the suction force of the curved pipe nozzle is provided between the vacuum pump and the curved pipe conveyor gripping and releasing device; the method includes the following steps:

[0017] S1. Connect the power supply and data cable to the electrical control cabinet. Connect the vacuum pump to the components in the automated bag making and bagging equipment that require air extraction. Write the relevant programs and parameters for each process.

[0018] S2. Turn on the main switch and vacuum pump of the automated bag making and bagging equipment, pull the bag material out of the feeding device, pass it through the shaping vacuum cylinder and suck it tightly onto the curved suction nozzle;

[0019] S3. The curved tube conveyor gripping device moves to the fifth positioner and hands the bag material to the straight tube conveyor gripping device for suction. The second vacuum valve reduces the suction force of the curved tube nozzle. The straight tube conveyor gripping device puts the bag material on the inner mold. The curved tube conveyor gripping device moves to the fourth positioner. The second vacuum valve increases the suction force of the curved tube nozzle to tighten the bag material.

[0020] S4. The bag sealing and cutting device heat-seals the ends of the bag material to form a bag body and cuts off the connection between the bag body and the bag material.

[0021] S5. The first vacuum valve reduces the suction force of the straight pipe nozzle, the straight pipe conveying gripping device moves to the first positioner, the first vacuum valve increases the suction force of the straight pipe nozzle, and the curved pipe conveying gripping device moves to the fifth positioner to hand the bag material to the straight pipe conveying gripping device for suction.

[0022] Repeat steps S3-S5 until the number of bags on the inner mold reaches the preset value;

[0023] In step S3, when the straight pipe conveying gripping device places the bag material onto the inner mold, the conical top block moves away from the bow-shaped pressure strip. The return spring causes the bow-shaped pressure strip to reset and release the bag. When the straight pipe conveying gripping device returns to the first positioner, the conical top block pushes the bow-shaped pressure strip to press the bag material onto the inner mold.

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] 1. The automated bag making and bagging equipment in this case requires no manual intervention throughout the entire process, enabling continuous and rapid bag making and bagging operations, greatly improving production efficiency. Precise control via an electrical control cabinet ensures that each step is executed according to preset parameters, guaranteeing high product quality and consistency. The suction port on the shaping vacuum cylinder keeps the bag material in a cylindrical shape throughout processing, avoiding deformation or positional shifts and enhancing production stability. This equipment not only performs basic bag making but also bagging, making it suitable for various packaging needs. Precise control of bag material length and cutting reduces waste and lowers production costs. Adjustable inner molds and other related components accommodate different sizes and types of bags, offering high flexibility. The high degree of automation reduces workers' direct contact with the machine, thereby lowering the risk of workplace injuries. Attached Figure Description

[0026] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the bag material in this invention, which is unwound from the feeding device, adsorbed into a cylindrical shape by the shaping vacuum cylinder, and then grasped by the straight pipe conveying and gripping device.

[0029] Figure 3 This is a cross-sectional schematic diagram of the bag material in this invention, which is unwound from the feeding device, adsorbed into a cylindrical shape by the shaping vacuum cylinder, and grasped by the straight pipe conveying and gripping device.

[0030] Figure 4 This is a schematic diagram of the bag-sealing and cutting device in this invention;

[0031] Figure 5 This is a cross-sectional schematic diagram of the automated bagging device in this invention;

[0032] Figure 6 This is a schematic diagram of the bag tightening and loosening device in this invention;

[0033] Figure 7 This is a schematic diagram of the structure of the inner mold and the bag body in this invention;

[0034] Figure 8 This is a schematic diagram of the structure of the bags stacked into a rectangular cylindrical shape in this invention;

[0035] Figure 9 This is a schematic diagram of the structure of the bag body stacked into an elliptical cylindrical shape in this invention;

[0036] Figure 10 This is a control diagram of the electrical control cabinet. Detailed Implementation

[0037] The present invention will now be further described with reference to the accompanying drawings:

[0038] like Figures 1 to 10 An automated bag-making and bagging device is shown, including a base 1 and an electrical control cabinet 2. The base 1 is sequentially equipped with a feeding device 3, a shaping vacuum cylinder 4, and an automated bagging device 5. The inner wall of the shaping vacuum cylinder 4 is provided with multiple suction ports 41 for adsorbing the outer wall of the bag material to keep the bag material in a cylindrical shape. The automated bagging device 5 includes an inner mold 51 for bag material to be fitted. Between the shaping vacuum cylinder 4 and the automated bagging device 5, there is also a straight tube conveying and gripping device 6 for adsorbing the bag material and fitting it onto the inner mold 51, a sealing and cutting device 7 for heat-sealing the end of the bag material to form a bag body and for cutting off the connection between the bag body and the bag material, and a curved tube conveying and gripping device 8 for adsorbing the unprocessed end of the bag material to keep the bag material in a cylindrical shape.

[0039] The automated bag making and bagging equipment in this case requires no manual intervention throughout the entire process, enabling continuous and rapid bag making and bagging operations, greatly improving production efficiency. Precise control via an electrical control cabinet ensures that each step is executed according to preset parameters, guaranteeing high product quality and consistency. The suction port 41 on the shaping vacuum cylinder 4 keeps the bag material in a cylindrical shape throughout processing, avoiding deformation or positional shifts and enhancing production stability. This equipment not only performs basic bag making but also has a bagging function, suitable for various packaging needs. Precise control of bag material length and cutting reduces waste and lowers production costs. The inner mold 51 and other related components can be adjusted to accommodate different sizes and types of bags, offering high flexibility. The high degree of automation reduces workers' direct contact with the machine, thereby lowering the risk of workplace injuries.

[0040] Specifically, the automated bagging device 5 includes a first mounting frame 52, on which a tensioning device base 53 is provided. An arc-shaped pressure strip 54 is rotatably connected to the tensioning device base 53. The first mounting frame 52 is also provided with a conical top block 55 for pushing one end of the arc-shaped pressure strip 54 so that the arc-shaped pressure strip 54 presses the bag body onto the inner mold 51, a first servo motor 56 for driving the conical top block 55 to push the arc-shaped pressure strip 54, and a guide tube 57 for guiding the movement of the conical top block 55. The output shaft of the first servo motor 56 is connected to a lead screw 58. The conical top block 55 is threadedly connected to the lead screw 58 and slidably connected to the guide tube 57. A reset spring 59 is also provided between the arc-shaped pressure strip 54 and the tensioning device base 53 so that the arc-shaped pressure strip 54 resets and releases the bag body when the conical top block 55 moves away from the arc-shaped pressure strip 54.

[0041] The first servo motor 56, in conjunction with the lead screw 58, enables precise position control, ensuring that the bow-shaped pressure strip 54 accurately presses or releases the bag body. The conical top block 55 moves along the guide tube 57, ensuring the linearity and stability of the movement and preventing deviation or jamming. When the conical top block 55 moves away from the bow-shaped pressure strip 54, the return spring 59 automatically pushes the bow-shaped pressure strip 54 back to its initial state. This not only simplifies the operation process but also reduces additional power requirements.

[0042] Furthermore, the first mounting bracket 52 is movably connected to the base 1 via a guide rail. A gear rack structure and a servo motor are provided between the first mounting bracket 52 and the base 1 to drive its movement. The base 1 is provided with a sixth positioner 105 for limiting the first mounting bracket 52 from sliding out of the base 1.

[0043] In one embodiment, the inner mold 51 is barrel-shaped, and the first mounting bracket 52 is further provided with the inner mold 51 fitted onto the mold base 50. The inner mold 51 may be cylindrical, square, or elliptical.

[0044] In one embodiment, the straight tube conveying and gripping device 6 includes a first annular vacuum cylinder 61 for suctioning the bag body and a first gear and rack transmission mechanism 62 for driving the first annular vacuum cylinder 61 to move and thus fit the bag body onto the inner mold 51. The inner circumferential side of the first annular vacuum cylinder 61 is provided with a plurality of straight tube suction nozzles 63 for suctioning the bag body. The first annular vacuum cylinder 61 is slidably connected to the base 1 via a guide rail.

[0045] Specifically, the first annular vacuum cylinder 61 has a first air chamber 64 inside its cylinder wall, and the straight tube nozzle 63 is connected to the first air chamber 64. The first annular vacuum cylinder 61 also has a first interface 65 for connecting the first air chamber 64 to a vacuum pump.

[0046] Multiple straight suction nozzles 63 arranged circumferentially on the inner side of the first annular vacuum cylinder 61 can evenly distribute suction force, ensuring that the bag material remains cylindrical when grasped. The first air chamber 64 is designed to be connected to the straight suction nozzles 63, allowing all straight suction nozzles 63 to act simultaneously during vacuuming, providing a consistent and powerful suction force. The first gear and rack transmission mechanism 62 provides high-precision position control, ensuring that the first annular vacuum cylinder 61 can accurately fit the bag body onto the inner mold 51. The gear and rack transmission has high mechanical efficiency and stability, making it suitable for operating environments with frequent starts and stops.

[0047] In one embodiment, the bag sealing and cutting device 7 includes a second mounting frame 71 slidably connected to the base 1 via a guide rail. At least one pair of bottom-sealing cutting seats 72 are movably connected to the second mounting frame 71, and at least two opposing bottom-sealing cutting seats 72 are movably connected to the second mounting frame 71. One of the bottom-sealing cutting seats 72 has a pressure-pressing silicone strip 75, a heat-melting strip 73, and a blade 74 on its inner side. A second gear and rack transmission mechanism is provided between the bottom-sealing cutting seat 72 and the second mounting frame 71, capable of driving the pair of bottom-sealing cutting seats 72 to approach, thereby sealing the bag material and cutting the bag material. The pressure-pressing silicone strip 75 straightens the cylindrical bag material, the heat-melting strip 73 abuts against the opposite bottom-sealing cutting seat 72 to complete the heat fusion, and the blade 74 passes through the opposite bottom-sealing cutting seat 72 in a staggered manner to complete the cutting.

[0048] In one embodiment, the curved tube conveying and gripping device 8 includes a second annular vacuum cylinder 81 for suctioning the bag and a third gear and rack transmission mechanism 82 for driving the second annular vacuum cylinder 81 to move and thus drag the bag. The second annular vacuum cylinder 81 is circumferentially provided with a plurality of curved tube suction nozzles 83 for suctioning the bag. The second annular vacuum cylinder 81 is slidably connected to the base 1 via a guide rail.

[0049] Specifically, the second annular vacuum cylinder 81 has a second air chamber 84 inside its cylinder wall, and the bent tube nozzle 83 is connected to the second air chamber 84. The second annular vacuum cylinder 81 also has a second interface 85 for connecting the second air chamber 84 to a vacuum pump.

[0050] Multiple curved suction nozzles 83 arranged circumferentially in the second annular vacuum cylinder 81 can evenly distribute suction force, ensuring that the bag material remains cylindrical when gripped. The second air chamber 84 is designed to be connected to the curved suction nozzles 83, so that when vacuuming, all curved suction nozzles 83 can act simultaneously, providing a consistent and strong suction force.

[0051] In one embodiment, the shaping vacuum cylinder 4 has a third air chamber 42 in its cylinder wall, and the suction port 41 is connected to the third air chamber 42. The shaping vacuum cylinder 4 is also provided with a third interface 43 for connecting the third air chamber 41 to a vacuum pump. The shaping vacuum cylinder 4 is slidably connected to the base 1 via a guide rail.

[0052] The bags are nested one inside the other, forming a stack of multiple bags to create a package.

[0053] In one embodiment, a conveyor roller 9 for traction of the bag material and a second servo motor 91 for driving the conveyor roller 9 to rotate are provided between the feeding device 3 and the shaping vacuum cylinder 4. The second servo motor 91 provides high-precision speed and position control, ensuring that the bag material is traction at a constant and controllable speed, avoiding material stretching or accumulation problems caused by speed fluctuations. The design of the conveyor roller 9 can apply pressure evenly, ensuring that the bag material does not slip or deviate during traction, thereby guaranteeing the flatness of the bag material and the stability of transmission. The gap between the rollers can be adjusted according to the thickness of the bag material, further improving adaptability. Precise traction control reduces slack or excessive stretching of the bag material during transmission, reduces material waste, and saves costs.

[0054] A bag-making and bag-packing method using an automated bag-making and bag-packing device, employing the aforementioned automated bag-making and bag-packing device, wherein the machine base 1 is equipped with a first positioner 100 for determining the material-taking position of the straight pipe conveying gripping and releasing device 6, a second positioner 101 for determining the material-discharging position of the straight pipe conveying gripping and releasing device 6, a third positioner 102 for determining the retraction position of the curved pipe conveying gripping and releasing device 8, a fourth positioner 103 for determining the material-taking position of the curved pipe conveying gripping and releasing device 8, and a fifth positioner 104 for determining the material-delivering position of the curved pipe conveying gripping and releasing device 8; a first vacuum valve 201 for adjusting the suction force of the straight pipe suction nozzle 63 is provided between the vacuum pump and the straight pipe conveying gripping and releasing device 6; a second vacuum valve 202 for adjusting the suction force of the curved pipe suction nozzle 83 is provided between the vacuum pump and the shaping vacuum cylinder 4; and a third vacuum valve 203 for adjusting the suction force of the suction port 41 is provided between the vacuum pump and the shaping vacuum cylinder 4. The method includes the following steps:

[0055] S1 and the electrical control cabinet 2 are connected to the power supply and data cable. The components in the automated bag making and bagging equipment that require air extraction are connected to the vacuum pump. The relevant programs and parameters for each process action are written. The electrical control cabinet 2 has a PLC control system.

[0056] S2. Turn on the main switch and vacuum pump of the automated bag making and bagging equipment, pull the bag material out from the feeding device 3, pass it through the shaping vacuum cylinder 4 and suck it tightly onto the curved suction nozzle 83.

[0057] S3, the curved tube conveying gripping device 8 moves to the fifth positioner 104 to hand the bag material to the straight tube conveying gripping device 6 for suction, the second vacuum valve 202 reduces the suction force of the curved tube nozzle 83, the straight tube conveying gripping device 6 puts the bag material on the inner mold 51, the curved tube conveying gripping device 8 moves to the fourth positioner 103, the second vacuum valve 202 increases the suction force of the curved tube nozzle 83 to tighten the bag material.

[0058] S4, the bag sealing and cutting device 7 heat seals the end of the bag material to form a bag body and cuts off the connection between the bag body and the bag material;

[0059] S5. The first vacuum valve 201 reduces the suction force of the straight pipe nozzle 63, the straight pipe conveying gripping device 6 moves to the first positioner 100, the first vacuum valve 201 increases the suction force of the straight pipe nozzle 63, and the curved pipe conveying gripping device 8 moves to the fifth positioner 104 to hand the bag material to the straight pipe conveying gripping device 6 for suction.

[0060] Repeat steps S3-S5 until the number of bags on the inner mold 51 reaches the preset value; then remove the bags manually.

[0061] In step S3, when the straight pipe conveying gripping device 6 places the bag material onto the inner mold 51, the conical top block 55 moves away from the bow-shaped pressure strip 54. The return spring causes the bow-shaped pressure strip 54 to reset and release the bag. When the straight pipe conveying gripping device 6 returns to the first positioner 100, the conical top block 55 pushes the bow-shaped pressure strip 54 to press the bag material onto the inner mold 51.

Claims

1. An automated bag making and sleeving apparatus, characterized by: The device includes a base (1) and an electrical control cabinet (2). The base (1) is provided with a feeding device (3), a shaping vacuum cylinder (4) and a bagging automation device (5) in sequence. The inner wall of the shaping vacuum cylinder (4) is provided with multiple suction ports (41) for adsorbing the outer wall of the bag material so that the bag material is kept in a cylindrical shape. The bagging automation device (5) includes an inner mold (51) for bag material to be fitted. Between the shaping vacuum cylinder (4) and the bagging automation device (5), there is also a straight tube conveying and gripping device (6) for adsorbing the bag material and fitting the bag material onto the inner mold (51), a sealing and cutting device (7) for heat sealing the end of the bag material to form a bag body and for cutting off the connection between the bag body and the bag material, and a curved tube conveying and gripping device (8) for adsorbing the unprocessed end of the bag material so that the bag material is kept in a cylindrical shape. The automated bagging device (5) includes a first mounting frame (52), on which a tensioning device base (53) is provided. An arc-shaped pressure strip (54) is rotatably connected to the tensioning device base (53). The inner mold (51) is barrel-shaped. The first mounting frame (52) is also provided with a mold base (50) for the inner mold (51) to fit on. The first mounting frame (52) is also provided with a conical top block (55) for pushing one end of the arc-shaped pressure strip (54) so ​​that the arc-shaped pressure strip (54) presses the bag body onto the inner mold (51). The top block (55) pushes the first servo motor (56) of the bow-shaped pressure strip (54) and the guide tube (57) for guiding the movement of the conical top block (55). The output shaft of the first servo motor (56) is connected to a lead screw (58). The conical top block (55) is threadedly connected to the lead screw (58) and slidably connected to the guide tube (57). A reset spring (59) is also provided between the bow-shaped pressure strip (54) and the base (53) of the tensioning device to reset the bow-shaped pressure strip (54) and release the bag body when the conical top block (55) moves away from the bow-shaped pressure strip (54). The straight tube conveying gripping device (6) includes a first annular vacuum cylinder (61) for suctioning the bag body and a first gear and rack transmission mechanism (62) for driving the first annular vacuum cylinder (61) to move so as to put the bag body on the inner mold (51). The inner circumferential side of the first annular vacuum cylinder (61) is provided with a plurality of straight tube suction nozzles (63) for suctioning the bag body. The curved tube conveying and gripping device (8) includes a second annular vacuum cylinder (81) for suctioning the bag body and a third gear and rack transmission mechanism (82) for driving the second annular vacuum cylinder (81) to move and thus drag the bag body. The second annular vacuum cylinder (81) is circumferentially provided with a plurality of curved tube suction nozzles (83) for suctioning the bag body.

2. An automated bag-on-pug machine according to claim 1, wherein: The first annular vacuum cylinder (61) has a first gas chamber (64) inside its cylinder wall. The straight tube nozzle (63) is connected to the first gas chamber (64). The first annular vacuum cylinder (61) is also provided with a first interface (65) for connecting the first gas chamber (64) to a vacuum pump.

3. An automated bag-on-pug machine according to claim 2, wherein: The bag sealing and cutting device (7) includes a second mounting frame (71), on which at least two opposing bottom sealing and cutting seats (72) are movably connected. One of the bottom sealing and cutting seats (72) is provided with a pressure film silicone strip (75), a hot melt strip (73) and a blade (74) on its inner side. A second gear and rack transmission mechanism is provided between the bottom sealing and cutting seat (72) and the second mounting frame (71) to drive the two bottom sealing and cutting seats (72) to come together so as to seal the bottom of the bag material and cut the bag material.

4. The automated bag making and bagging equipment according to claim 3, characterized in that: The second annular vacuum cylinder (81) has a second air chamber (84) inside its cylinder wall. The bent tube nozzle (83) is connected to the second air chamber (84). The second annular vacuum cylinder (81) is also provided with a second interface (85) for connecting the second air chamber (84) to a vacuum pump.

5. An automated bag-making and bag-packing device according to claim 1, characterized in that: The feeding device (3) and the shaping vacuum cylinder (4) are provided with a conveying wheel (9) for pulling the bag material and a second servo motor (91) for driving the conveying wheel (9) to rotate.

6. A bag-making and bag-packing method using an automated bag-making and bag-packing device, employing the automated bag-making and bag-packing device as described in claim 5, characterized in that, The base (1) is provided with a first locator (100) for determining the material picking position of the straight pipe conveying gripping device (6), a second locator (101) for determining the material discharging position of the straight pipe conveying gripping device (6), a third locator (102) for determining the retraction position of the curved pipe conveying gripping device (8), a fourth locator (103) for determining the material picking position of the curved pipe conveying gripping device (8), and a fifth locator (104) for determining the material delivery position of the curved pipe conveying gripping device (8). A first vacuum valve (201) for adjusting the suction force of the straight pipe suction nozzle (63) is provided between the vacuum pump and the straight pipe conveying gripping device (6), and a second vacuum valve (202) for adjusting the suction force of the curved pipe suction nozzle (83) is provided between the vacuum pump and the curved pipe conveying gripping device (8). The method includes the following steps: S1, Electrical control cabinet (2) Connect power supply and data line, connect vacuum pump to the parts that need to be evacuated in the automated bag making and bagging equipment, and write the relevant programs and parameters for each process action; S2. Turn on the main switch and vacuum pump of the automated bag making and bagging equipment, pull the bag material out from the feeding device (3), pass it through the shaping vacuum cylinder (4) and suck it tightly onto the curved suction nozzle (83); S3, the curved tube conveying gripping device (8) moves to the fifth positioner (104) and hands the bag material to the straight tube conveying gripping device (6) for suction. The second vacuum valve (202) reduces the suction force of the curved tube nozzle (83). The straight tube conveying gripping device (6) puts the bag material on the inner mold (51). The curved tube conveying gripping device (8) moves to the fourth positioner (103). The second vacuum valve (202) increases the suction force of the curved tube nozzle (83) to tighten the bag material. S4, Bag sealing and cutting device (7) heat seals the end of the bag material to form a bag body and cuts off the connection between the bag body and the bag material; S5. The first vacuum valve (201) reduces the suction force of the straight pipe nozzle (63), the straight pipe conveying gripping device (6) moves to the first positioner (100), the first vacuum valve (201) increases the suction force of the straight pipe nozzle (63), the curved pipe conveying gripping device (8) moves to the fifth positioner (104) to hand the bag material to the straight pipe conveying gripping device (6) for suction. Repeat steps S3-S5 until the number of bags on the inner mold (51) reaches the preset value; In step S3, when the straight pipe conveying gripping device (6) puts the bag material onto the inner mold (51), the conical top block (55) moves away from the bow-shaped pressure strip (54), and the return spring causes the bow-shaped pressure strip (54) to reset and release the bag body. When the straight pipe conveying gripping device (6) returns to the first positioner (100), the conical top block (55) pushes the bow-shaped pressure strip (54) to press the bag material onto the inner mold (51).