Automatic production line for round-bottom packaging bags

Abstract

The invention relates to the technical field of packaging machinery, in particular to a round-bottom packaging bag automatic production line which comprises a conveying line, and the conveying line is sequentially connected with a rolling frame, a straight edge welding device, a cutting device, a quality inspection table, an ink-jet printer, a round-bottom welding device, a gantry transplanting device, a bag folding machine and a boxing device. The material rolling frame is located at the starting end of the conveying line, the straight edge welding device is close to the material rolling frame, the cutting device is located behind the straight edge welding device, the quality inspection table is arranged behind the cutting device, the code spraying machine is located behind the quality inspection table, and the round bottom welding device is close to the code spraying machine. The gantry transplanting device is located behind the round bottom welding device, and the boxing device is located behind the bag folding machine. According to the automatic production line for the round-bottom packaging bags, full-automatic operation is achieved, manual intervention is reduced, and the production efficiency and the product consistency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging machinery, in particular to an automatic production line for round-bottom packaging bags. Background Art

[0002] In modern industrial production, packaging bags are a key tool for product transportation and storage, making their efficient production crucial. With the advancement of automation technology, the use of automated equipment for packaging bag production has become a crucial means of improving efficiency and ensuring quality. Round-bottom packaging bags, due to their unique structural design, are widely used across multiple industries. Therefore, developing an efficient automated production line for round-bottom bags is crucial for improving productivity.

[0003] Although some round-bottom bag production equipment already exists on the market, most of this equipment relies on manual intervention and cannot be fully automated. For example, in the traditional round-bottom bag production process, from material cutting on the roll rack, straight edge welding, round bottom welding to the final bag stacking and boxing, multiple workers are often required to work together. This not only increases labor costs but also easily leads to unstable product quality due to human factors. At the same time, existing production lines usually lack intelligent control and detection systems, making it difficult to ensure the accuracy and consistency of each production link, thereby affecting overall production efficiency and yield rate. Summary of the Invention

[0004] The purpose of the present invention is to provide an automated production line for round-bottom packaging bags to solve the problems raised in the above background technology that the round-bottom packaging bag production equipment on the current market relies on a lot of manual intervention, has low production efficiency and is difficult to ensure product quality.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automated production line for round-bottom packaging bags, comprising a conveyor line running through the entire production line, which is sequentially connected to a coil rack, a straight-edge welding device, a cutting device, a quality inspection table, an inkjet printer, a round-bottom welding device, a gantry transplanting device, a bag stacking machine, and a box packing device; the coil rack is located at the starting end of the conveyor line, and is used to unfold the raw materials and transmit them to the straight-edge welding device; the straight-edge welding device is adjacent to the coil rack; the cutting device is located behind the straight-edge welding device; the quality inspection table is arranged behind the cutting device, and receives the cut materials through the conveyor line; the inkjet printer is located behind the quality inspection table; the round-bottom welding device follows the inkjet printer; the gantry transplanting device is located behind the round-bottom welding device, and is used to transfer the welded products to the bag stacking machine; the box packing device is located behind the bag stacking machine, and receives the stacked packaging bags.

[0006] Preferably, the coil rack comprises a plurality of support rollers distributed in parallel, the support rollers are fixed on the ground via brackets, and the brackets are provided with adjustment devices.

[0007] Preferably, a welding head is provided inside the straight edge welding device, and the welding head is connected to a fixed seat provided on the conveyor line through a slide rail.

[0008] Preferably, the cutting device includes a horizontally arranged cutting platform, on which a cutting tool that can move up and down is installed, and the cutting tool is connected to the cutting platform via a hydraulic cylinder, and the hydraulic cylinder is fixed to one side of the cutting platform.

[0009] Preferably, the product inspection table is provided with a detection area in which a plurality of sensors are installed.

[0010] Preferably, the inkjet printer includes a nozzle assembly, which is fixed above the conveyor line through a support frame, and the support frame is provided with a fine-tuning bolt.

[0011] Preferably, the round bottom welding device is provided with a welding mold having a cylindrical structure, and the welding mold is fixed on the base through a driving mechanism.

[0012] Preferably, the gantry transplanting device includes a gantry frame spanning the conveyor line, the gantry frame is provided with a grabbing arm movable along a track, and the grabbing arm is connected to the gantry frame via a pneumatic device.

[0013] Preferably, the bag stacking machine is equipped with an inclined stacking platform, the bottom of which is connected to the ground via a spring damping shock absorber.

[0014] Preferably, the box packing device is a rectangular frame structure with an open top, and the frame is installed on a fixed base.

[0015] Compared with existing technologies, the present invention has the following beneficial effects: the automated production line for round-bottom packaging bags achieves fully automated operation, reduces manual intervention, improves production efficiency and product consistency, and ensures the accuracy and stability of each link, thereby improving product quality and reducing labor intensity. Through the coordinated cooperation of a coil rack, straight-edge welding device, cutting device, quality inspection table, inkjet printer, round-bottom welding device, gantry transplanting device, bag stacking machine, and boxing device, the automated production line for round-bottom packaging bags achieves full automation of packaging bag production. The rationally designed components and precise linkage significantly improve production efficiency and product consistency. At the same time, the high degree of automation reduces manual intervention and labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of an automated production line for round-bottom packaging bags according to the present invention;

[0017] Figure 2 This is a structural schematic diagram of a gantry transplanting device for an automated production line for round-bottom packaging bags of the present invention;

[0018] Figure 3 This is a schematic structural diagram of a bag stacking machine for an automated production line for round-bottom packaging bags according to the present invention;

[0019] Figure 4 This is a schematic structural diagram of a cutting device for an automated production line of round-bottom packaging bags according to the present invention;

[0020] Figure 5 The figure is a schematic diagram of the structure of an inkjet printer for an automated production line of round-bottom packaging bags according to the present invention.

[0021] In the figure: 1. Conveyor line; 2. Coil rack; 21. Support roller; 22. Bracket; 3. Straight-edge welding device; 4. Cutting device; 41. Cutting platform; 42. Cutting tool; 43. Hydraulic cylinder; 5. Inspection table; 6. Inkjet printer; 61. Printhead assembly; 62. Support frame; 63. Fine-tuning bolt; 7. Round bottom welding device; 71. Welding mold; 72. Base; 8. Gantry transplanting device; 81. Gantry frame; 82. Grabbing arm; 9. Bag stacking machine; 10. Packing device. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-5The present invention provides a technical solution: an automated production line for round-bottom packaging bags, comprising a conveyor line 1, which runs through the entire production line and is sequentially connected to a coil rack 2, a straight-edge welding device 3, a cutting device 4, a quality inspection table 5, an inkjet printer 6, a round-bottom welding device 7, a gantry transfer device 8, a bag stacking machine 9, and a boxing device 10. The coil rack 2 is located at the starting end of the conveyor line 1 and is used to unfold the raw materials and transfer them to the straight-edge welding device 3. The straight-edge welding device 3 is adjacent to the coil rack 2. The cutting device 4 is located behind the straight-edge welding device 3. The quality inspection table 5 is arranged behind the cutting device 4 and receives the cut materials through the conveyor line 1. The inkjet printer 6 is located behind the quality inspection table 5. The round-bottom welding device 7 follows the inkjet printer 6. The gantry transfer device 8 is located behind the round-bottom welding device 7. , which is used to transfer the welded products to the bag stacking machine 9. The boxing device 10 is located after the bag stacking machine 9 and receives the stacked packaging bags. The raw materials of this structure are unfolded by the coil rack 2 and automatically transmitted to the straight edge welding device 3 through the conveyor line 1 for preliminary welding. After welding, they are continued to be sent to the cutting device 4 by the conveyor line 1 for precise cutting to ensure uniform size. Then the materials enter the inspection table 5 for quality inspection to ensure that there are no defective products entering the subsequent process. Qualified products are sent to the inkjet printer 6 via the conveyor line 1 for information printing, and then sent to the round bottom welding device 7 to complete the key bottom forming welding. The welded packaging bags are grabbed by the gantry transfer device 8 and transferred to the bag stacking machine 9 for neat stacking. Finally, the automatic boxing operation is completed by the boxing device 10. The components are connected by The conveyor line 1 realizes continuous and orderly linkage coordination, and no human intervention is required in the whole process, which significantly improves production efficiency and product consistency, solves the problems of high labor cost, unstable product quality and low production efficiency caused by reliance on manual operation in the existing technology, and realizes truly automated continuous production. At the same time, the entire production line is coordinated and operated by the PLC central control system. Each device is equipped with an independent controller and communicates with the main control system to realize parameter setting, fault diagnosis, action interlocking and data recording, etc., further improving the intelligence level and operation convenience of the production line. The coil rack 2 includes a plurality of parallel distributed support rollers 21, and the support rollers 21 are fixed to the ground by brackets 22, and the brackets 22 are provided with adjustment devices. This structure is realized through multiple The parallel distributed support rollers 21 can achieve stable support and smooth unwinding of the raw material coil, avoiding deviation or jamming of the material during transportation. The bracket 22 is also equipped with a tension control system for adjusting the tension in the material transportation process in real time to prevent the material from loosening or stretching and deforming, ensuring the accuracy of subsequent welding and cutting. The bracket 22 ensures that the overall structure is stable and reliable. At the same time, the adjustment device arranged thereon can be flexibly adjusted according to the width and height of the raw material to meet the installation requirements of coils of different specifications, thereby improving the versatility and applicability of the equipment. A welding head is provided inside the straight edge welding device 3, and the welding head inside the straight edge welding device 3 is connected to a fixed seat provided on the conveyor line 1 through a slide rail. The welding head of the straight edge welding device 3 of this structure can move synchronously on the slide rail.Continuous and stable welding of materials is achieved. At the same time, this connection method ensures the synchronization and accuracy of the welding head and material operation during the welding process, effectively improving the welding quality and production efficiency. After the welding is completed, a cooling and shaping component is also provided to quickly cool and solidify the welding part to prevent deformation in the high-temperature softening area and improve the structural strength of the finished product. The cutting device 4 includes a horizontally arranged cutting platform 41, and a cutting tool 42 that can move up and down is installed on the cutting platform 41. The cutting tool 42 is connected to the cutting platform 41 through a hydraulic cylinder 43, and the hydraulic cylinder 43 is fixed on one side of the cutting platform 41. When the cutting device 4 is working, the hydraulic cylinder 43 drives the cutting tool 42 to move up and down accurately in the vertical direction, so as to achieve the delivery to the cutting platform 41. The materials on the conveyor are efficiently and neatly cut to a fixed length. The cutting platform 41 is set horizontally to ensure that the materials remain stable during the cutting process, and the synchronous operation of the conveyor line 1 is coordinated to further improve the cutting accuracy and production continuity. The inspection table 5 is provided with a detection area, and multiple sensors are installed in the detection area. This structure realizes multi-directional and high-precision quality inspection of the passing packaging bag materials; the sensor can monitor in real time whether the product has defects such as defects, poor welding or dimensional deviation, to ensure that only qualified products enter the subsequent process. The inkjet printer 6 includes a nozzle assembly 61, which is fixed above the conveyor line 1 by a support frame 62, and a fine-tuning bolt 63 is provided on the support frame 62. When the inkjet printer 6 is working, the nozzle assembly 61 is on the support frame Under the support of the frame 62, it is precisely located above the conveyor line 1 to ensure that the coding position is accurate. The fine-tuning bolt 63 can finely adjust the height and angle of the nozzle assembly 61 to adapt to products of different specifications and coding requirements, ensuring that the coding is clear and the position is consistent. The inkjet printer 6 is provided with a coding recognition camera for image acquisition and recognition of products that have completed coding, and feedback information to the control system to realize the coding abnormality alarm and rejection function. The round bottom welding device 7 is provided with a welding mold 71 with a cylindrical structure. The welding mold 71 is fixed to the base 72 through a driving mechanism. This structure enables the welding mold 71 to be accurately lifted and positioned according to the set program to achieve efficient and uniform welding of the bottom of the packaging bag. The welding mold 71 is provided with a heating channel and The temperature sensor accurately controls the welding temperature through the temperature control system, thereby adapting to packaging materials of different materials and improving welding stability and versatility. The gantry transplanting device 8 includes a gantry 81 across the conveyor line 1. The gantry 81 is provided with a grabbing arm 82 that can move along the track. The grabbing arm 82 is connected to the gantry 81 through a pneumatic device. This structure crosses the conveyor line 1 through the gantry 81, providing stable support for the movement of the grabbing arm 82. The grabbing arm 82 can move flexibly on the track to achieve accurate positioning, grabbing and transfer of the welded product. The pneumatic device drives the grabbing arm 82 to perform grabbing and releasing actions, with fast response speed and high control accuracy, ensuring the stability and continuity of the product during the transfer process. A positioning guide block is provided under the grabbing arm 82.Used to assist in positioning products during the grabbing and placement process, preventing them from shifting or falling and improving transfer accuracy, the bag stacker 9 is equipped with an inclined stacking platform, the bottom of which is connected to the ground via spring-damped shock absorbers. This structure allows the bags to slide smoothly and be neatly distributed during the automatic stacking process, while effectively absorbing the impact generated during the stacking process, reducing the impact of vibration on the equipment and product quality. The box packing device 10 is a rectangular frame structure with an open top, which is mounted on a fixed base. This structure allows the stacked bags to pass through the gantry transfer device 8 and accurately enter the frame and fall into the cardboard box below, ensuring that the bags are neatly and orderly loaded into the carton. At the same time, the fixed base ensures the stability of the overall structure and operational reliability.

[0024] Working principle: When using the round bottom packaging bag automatic production line, first install the raw material coil on the coil rack 2, realize smooth unwinding through multiple support rollers 21, and adjust the position by the adjustment device on the bracket 22. Then the material is conveyed to the straight edge welding device 3 via the conveyor line 1. The welding head inside it moves synchronously with the conveyor line 1 through the slide rail to complete the initial straight edge welding. After the welding is completed, the material continues to be conveyed from the conveyor line 1 to the cutting device 4. The hydraulic cylinder 43 drives the cutting tool 42 to cut the material to a fixed length. The cutting platform 41 ensures the stability of the cutting process. The cut material passes through the conveyor line 1 again and enters the inspection table 5. The multiple sensors in the detection area are used to conduct a comprehensive quality inspection of the product. The grid products are continuously conveyed to the inkjet printer 6, and the nozzle assembly 61 completes the information printing with the cooperation of the support frame 62 and the fine-tuning bolt 63. The printed products are conveyed to the round bottom welding device 7, and the welding mold 71 is precisely raised and lowered under the action of the driving mechanism to complete the bottom forming welding. The welded packaging bags are grabbed by the gantry transfer device 8, and the gantry 81 spans the conveyor line 1. The grabbing arm 82 moves along the track and completes the product transfer with the help of a pneumatic device. The transferred products are sent to the bag stacking machine 9 and automatically stacked by the inclined stacking platform. Finally, the neatly stacked packaging bags enter the cartoning device 10, and the rectangular frame structure with an open top guides the packaging bags to fall into the cartons below in an orderly manner, completing the entire automated production process.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automated production line for round-bottom packaging bags, comprising a conveyor line (1), characterized in that: The conveyor line (1) runs through the entire production line and is sequentially connected to the coil rack (2), the straight edge welding device (3), the cutting device (4), the quality inspection table (5), the inkjet printer (6), the round bottom welding device (7), the gantry transplanting device (8), the bag stacking machine (9) and the boxing device (10); The coil rack (2) is located at the starting end of the conveyor line (1) and is used to unfold the raw materials and transfer them to the straight-edge welding device (3). The straight-edge welding device (3) is adjacent to the coil rack (2). The cutting device (4) is located after the straight-edge welding device (3). The inspection table (5) is set after the cutting device (4) and receives the cut materials through the conveyor line (1). The inkjet printer (6) is located after the inspection table (5). The round bottom welding device (7) is located immediately after the inkjet printer (6). The gantry transplanting device (8) is located after the round bottom welding device (7) and is used to transfer the welded products to the bag stacking machine (9). The boxing device (10) is located after the bag stacking machine (9) and receives the stacked packaging bags.

2. The automated production line for round-bottom packaging bags according to claim 1, characterized in that: The coil rack (2) comprises a plurality of support rollers (21) distributed in parallel, wherein the support rollers (21) are fixed on the ground via a bracket (22), and an adjustment device is provided on the bracket (22).

3. The automated production line for round-bottom packaging bags according to claim 1, characterized in that: A welding head is provided inside the straight-edge welding device (3), and the welding head inside the straight-edge welding device (3) is connected to a fixed seat provided on the conveying line (1) via a slide rail.

4. The automated production line for round-bottom packaging bags according to claim 1, characterized in that: The cutting device (4) comprises a horizontally arranged cutting platform (41), on which a cutting tool (42) that can move up and down is mounted, and the cutting tool (42) is connected to the cutting platform (41) via a hydraulic cylinder (43), and the hydraulic cylinder (43) is fixed to one side of the cutting platform (41).

5. The automated production line for round-bottom packaging bags according to claim 1, characterized in that: The product inspection table (5) is provided with a detection area, in which a plurality of sensors are installed.

6. The automated production line for round-bottom packaging bags according to claim 1, characterized in that: The inkjet printer (6) includes a nozzle assembly (61), which is fixed above the conveyor line (1) via a support frame (62), and a fine-tuning bolt (63) is provided on the support frame (62).

7. The automated production line for round-bottom packaging bags according to claim 1, characterized in that: The round bottom welding device (7) is provided with a welding mold (71) having a cylindrical structure, and the welding mold (71) is fixed on a base (72) via a driving mechanism.

8. The automated production line for round-bottom packaging bags according to claim 1, characterized in that: The gantry transplanting device (8) comprises a gantry (81) spanning the conveyor line (1), the gantry (81) being provided with a grabbing arm (82) movable along a track, the grabbing arm (82) being connected to the gantry (81) via a pneumatic device.

9. The automated production line for round-bottom packaging bags according to claim 1, characterized in that: The bag stacking machine (9) is equipped with an inclined stacking platform, the bottom of which is connected to the ground via a spring damping shock absorber.

10. The automated production line for round-bottom packaging bags according to claim 1, characterized in that: The box packing device (10) is a rectangular frame structure with an open top, and the frame is installed on a fixed base.

Images