An in-pack bag forming machine

Abstract

This utility model relates to the field of packaging inner bag processing technology, and discloses a packaging inner bag forming machine, including a feeding section comprising an air shaft, a safety chuck, and a magnetic powder brake for fixing and tightening the film material and adjusting the feeding tension; a correction mechanism comprising a correction sensor and a feeding rack for ensuring the film material is centered during feeding; a traction section comprising a reducer motor, an active polyurethane roller, and a passive small roller for traction of the film material; a floating constant tension mechanism comprising a floating device and an auxiliary cylinder for maintaining stable film material tension; and a multi-roll single-layer film folding and folding rack section for folding and assembling multiple rolls of single-layer film material. In this utility model, the mold has instantaneous heating and cooling functions, resulting in low power consumption and allowing the film material to be pre-pressed into the mold without damage. A constant and precise temperature control mechanism achieves synchronous signal feedback and regulation, with near-zero temperature difference, enabling precise control of the heating and cooling processes.

Description

Technical Field

[0001] This utility model relates to the field of packaging inner bag processing technology, and in particular to a packaging inner bag forming machine. Background Technology

[0002] In the modern packaging industry, inner packaging bags serve as a crucial carrier for the protection and storage of goods, and their production efficiency and quality directly impact a company's market competitiveness. With the continuous growth in market demand for inner packaging bags, technological innovation in inner packaging bag forming machines has become a core driving force for industry development. High-efficiency, precise, and energy-saving forming machines can not only improve production efficiency but also meet diverse market demands; therefore, the development of new inner packaging bag forming machine technologies is urgently needed.

[0003] Traditional inner bag forming machines for packaging typically employ ordinary heated molds in conjunction with traditional temperature gauges for temperature control during the welding process. The film material is gradually heated by heating elements for welding, and during cooling, the mold is lifted to utilize natural heat dissipation or auxiliary air cooling. Mechanically, it mainly consists of a feeding device, a traction mechanism, a welding mold, and a cutting mechanism, with each part working together to complete the basic process from feeding the film material to finished product formation. However, this traditional technology has limitations in temperature control and mold operation.

[0004] Traditional temperature control methods in packaging inner bag forming machines suffer from signal feedback delays, leading to a mismatch between temperature regulation and actual demand, resulting in significant temperature differences and making it difficult to accurately control the heating and cooling process of the mold. This restricts the flexibility of sealing and welding time, and the mold must be lifted during cooling to prevent film deformation due to high temperatures. Furthermore, the slow heating and cooling rates of the mold result in high energy consumption, and the film is easily damaged during trial pressing due to improper temperature control. In addition, the prolonged heating and cooling cycles not only reduce production efficiency but also compromise welding quality, failing to meet the production requirements of high-quality packaging inner bags. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a packaging inner bag forming machine, which aims to improve the problem that the traditional packaging inner bag forming machine temperature instrument control method has signal feedback delay, resulting in temperature control not being synchronized with actual needs, having a large temperature difference, and making it difficult to accurately control the heating and cooling process of the mold.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a packaging inner bag forming machine, comprising:

[0007] The feeding section includes an air shaft, a safety chuck, and a magnetic powder brake, which are used to fix and tighten the film material and adjust the feeding tension;

[0008] The alignment mechanism, including alignment sensors and a feeding rack, is used to ensure that the film material is centered during delivery;

[0009] The traction component, including a speed reducer motor, an active polyurethane roller, and a passive small roller, is used to traction the film material.

[0010] A floating constant tension mechanism, including a floating device and an auxiliary cylinder, is used to maintain stable film tension;

[0011] The multi-roll single-layer film folding and folding rack is used to gather and fold multiple rolls of single-layer film.

[0012] The edge sealing section, including the sealing mold, heat sealing platform, and pressure roller, is used to weld the edges of the film material.

[0013] The sealing control mechanism includes a constant temperature control mechanism for real-time adjustment of welding temperature. Signal feedback and control are synchronized, with almost no temperature difference. It precisely controls heating and cooling, making the sealing welding time adjustable, and the mold does not lift during cooling, ensuring the forming effect.

[0014] The irregular sealing section includes an upper mold beam, a lower mold beam, an adjustment device, and a cloth-dispensing device, and is used for irregular welding;

[0015] The intermediate correction section includes a correction frame A movable correction frame, a correction frame A fixed correction frame, and a correction frame B edge suction device, which are used for secondary correction.

[0016] The bottom sealing section includes a power cylinder and a bottom sealing mold, used for welding the bottom of the bag;

[0017] The waste edge removal part includes a servo motor, a vibrating knife assembly and a synchronous belt, which is used to automatically remove waste edges. The sliding block of the vibrating knife assembly is connected to the frame through a linear guide rail.

[0018] The fixed-length section includes an active polyurethane roller and a movable passive mechanism for fixed-length traction. The active motor is connected to the active polyurethane roller via a planetary reducer.

[0019] The flying knife cutting section includes pneumatic blade cutting, used to cut finished products;

[0020] The automatic material collection section includes mechanical grippers and a fabric collection track for stacking finished products. The support for the fabric collection adjustment wheel is equipped with an elongated hole adjustment groove.

[0021] Furthermore, in the irregular sealing section two, the upper mold beam two is connected to the frame through the mold support two, the adjusting wheel two is connected to the adjusting screw two and the intermediate partition two through the bevel gear set, the output shaft of the power transmission mechanism two is connected to the cloth feeding device through the spline, and the cloth feeding motor drives the auxiliary adjusting shaft through the synchronous belt.

[0022] Furthermore, the irregular sealing part includes an upper mold beam, a lower mold beam, an upper mold beam II, and a lower mold beam II with replaceable molds, which are suitable for welding requirements of different shapes. The upper mold beam, lower mold beam, upper mold beam II, and lower mold beam II are welded through mold support, adjusting wheel, adjusting screw, intermediate partition layer, and power transmission mechanism.

[0023] Furthermore, the constant temperature control mechanism adopts closed-loop control, monitors the welding temperature in real time and adjusts the heating power to ensure that the temperature is constant during welding and that the mold remains in place during cooling to avoid sealing deformation. The pressure roller of the sealing heat-pressing part is equipped with a correction function to ensure that the edge of the film is flat, which is conducive to welding and forming.

[0024] Furthermore, the floating device of the floating constant tension mechanism automatically adjusts its height via an auxiliary cylinder to maintain uniform film tension and prevent wrinkles.

[0025] Furthermore, in the intermediate correction section, the correction frame A movable correction frame is connected to the correction frame A fixed correction frame via a linear guide rail, and the swing arm of the correction frame B edge suction device is hinged to the correction frame B fixed frame via a rotary cylinder. The vibrating knife group for removing waste edge is driven by a servo motor, and the output shaft of the servo motor is connected to a synchronous pulley via a key. Precise cutting is achieved through a synchronous belt, and the waste edge removal is automated.

[0026] Furthermore, the mechanical grippers of the automatic material receiving section employ self-sensing recognition technology to automatically grab finished products and stack them along the receiving track.

[0027] Furthermore, the handwheel frame includes an adjustable feed roller, a fixed feed roller, and a screw adjustment device for precisely adjusting the film conveying path.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, the mold has instant heating and cooling functions, which not only consumes little power, but also allows the material film to be pre-contacted with the mold for trial pressing without damage. The constant and precise temperature control mechanism realizes synchronous signal feedback and regulation, with near-zero temperature difference, which can accurately control the heating and cooling process, freely set the sealing and welding time, and the mold does not need to be lifted during cooling. It effectively overcomes the problems of traditional welding molds, ensures excellent molding effect, and provides a solid guarantee for high-quality welding.

[0030] 2. In this utility model, the upper and lower symmetrical double molds work, and different welding states on one or both sides can be selected according to the different thicknesses of the double or multi-layer materials. This ensures that the temperature of the welding working surface is the same and accurate in each state, and no false welding, overheating and breakdown, or weak multi-layer welding will occur even for thicker or more multi-layer materials.

[0031] 3. This utility model solves many historical problems associated with pure PE film, such as its low heat-sealing point, even lower cooling and molding temperature, and the unsuitability of lifting the mold before cooling. It enables simultaneous welding and cooling of double-layer and multi-layer pure PE film in the same location, eliminating the need to lift the mold. The cooling time can be arbitrarily selected, and the mold can be lifted only after the film has cooled to the point of no deformation. Simultaneously, different shapes of welding marks (such as bottleneck openings, U-shapes, V-shapes, etc.) can be processed as required, simply by replacing the mold. The processed pure PE film exhibits excellent results, with no shrinkage, wrinkles, bubbles, burrs, false welds, cracks, or overheating and scorching. It boasts high stability, produces no defective products, and achieves excellent molding effects. This invention solves a major problem in the processing of pure PE film.

[0032] 4. This utility model achieves fully automated, unmanned operation, capable of processing tubular film materials, sheet film materials, M-fold film materials, etc. From feeding, automatic alignment, vertical sealing, irregular sealing, horizontal ironing, cutting, waste edge removal, and automatic material collection by mechanical clamps, the entire process is completed in one go, producing a complete finished inner bag. This completely achieves unmanned operation, significantly reducing production costs. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of a packaging inner bag forming machine proposed in this utility model;

[0034] Figure 2 This is a schematic diagram of the material feeding section of a packaging inner bag forming machine according to the present invention.

[0035] Figure 3 This is a schematic diagram of the sealing and ironing part of a packaging inner bag forming machine according to the present invention;

[0036] Figure 4 This is a schematic diagram of the handwheel frame structure of a packaging inner bag forming machine proposed in this utility model;

[0037] Figure 5 This is a schematic diagram of the irregular sealing part of a packaging inner bag forming machine proposed in this utility model;

[0038] Figure 6 This is a schematic diagram of the intermediate layer structure of a packaging inner bag forming machine proposed in this utility model;

[0039] Figure 7 This is a schematic diagram of the two-part structure of the irregular sealing part of a packaging inner bag forming machine proposed in this utility model;

[0040] Figure 8 This is a schematic diagram of the power transmission mechanism two of the packaging inner bag forming machine proposed in this utility model;

[0041] Figure 9 This is a schematic diagram of the relay correction part of a packaging inner bag forming machine proposed in this utility model;

[0042] Figure 10 This is a schematic diagram of the sealing part of a packaging inner bag forming machine according to the present invention;

[0043] Figure 11 This is a schematic diagram of the automatic material receiving section of a packaging inner bag forming machine proposed in this utility model.

[0044] Legend:

[0045] 1. Feeding section; 101. Air shaft; 102. Safety chuck; 103. Powder brake; 2. Correction mechanism; 201. Correction sensor; 202. Feeding rack; 3. Traction section; 301. Reducer motor; 302. Active polyurethane roller 1; 303. Passive small roller; 4. Floating constant tension mechanism; 401. Floating device; 402. Auxiliary cylinder; 5. Multi-roll single-layer film folding and receiving rack section; 6. Edge sealing and hot sealing section; 601. Sealing mold; 602. Heat sealing platform; 603. Pressure roller; 7. Sealing Control mechanism; 701. Constant temperature control mechanism; 8. Handwheel frame section; 801. Adjustable feed roller; 802. Fixed feed roller; 803. Screw adjustment device; 9. Irregular sealing section; 901. Upper mold beam; 902. Lower mold beam; 903. Mold support; 904. Adjusting wheel; 905. Adjusting screw; 906. Intermediate partition layer; 907. Power transmission mechanism; 908. Fabric feeding device one; 10. Irregular sealing section two; 1001. Upper mold beam two; 1002. Lower mold beam two; 1003. Mold support 2; 1004, Adjusting wheel 2; 1005, Adjusting screw 2; 1006, Intermediate partition layer 2; 1007, Power transmission mechanism 2; 1008, Fabric feeding device 2; 1009, Fabric feeding motor; 1010, Adjusting device; 1011, Auxiliary adjusting shaft; 11, Intermediate correction section; 1101, Correction frame A, correction movable frame; 1102, Correction frame A, correction fixed frame; 1103, Correction frame B, edge suction device; 1104, Correction frame B, fixed frame; 12, Bottom sealing section; 1201, Power cylinder; 1 202. Bottom sealing mold; 13. Waste edge trimming section; 1301. Servo motor; 1302. Synchronous pulley; 1303. Synchronous belt; 1304. Vibrating knife assembly; 1305. Vibrating knife assembly sliding block; 14. Fixed length section; 1401. Active polyurethane roller II; 1402. Movable passive mechanism; 1403. Active motor; 15. Flying knife cutting section; 1501. Pneumatic blade cutting; 16. Automatic material collection section; 1601. Mechanical gripper; 1602. Fabric collection adjustment wheel; 1603. Fabric collection track. Detailed Implementation

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0047] Reference Figures 1-11 One embodiment of this utility model is a packaging inner bag forming machine, comprising:

[0048] The feeding section 1 includes an air shaft 101, a safety chuck 102, and a magnetic powder brake 103, which are used to fix and tighten the film material and adjust the feeding tension.

[0049] The alignment mechanism 2, including the alignment sensor 201 and the feeding rack 202, is used to ensure that the film material is centered during feeding.

[0050] The traction part 3 includes a reducer motor 301, an active polyurethane roller 302 and a passive small roller 303, which are used to traction the film material.

[0051] The floating constant tension mechanism 4 includes a floating device 401 and an auxiliary cylinder 402, which are used to maintain the stability of the film tension.

[0052] The multi-roll single-layer film folding and folding rack section 5 is used to gather and fold multiple rolls of single-layer film.

[0053] The edge sealing and hot stamping part 6 includes a sealing mold 601, a heat sealing platform 602 and a pressure roller 603, which are used to weld the edge seam of the film material.

[0054] The sealing control mechanism 7 includes a constant temperature control mechanism 701, which is used to regulate the welding temperature in real time. The signal feedback and regulation are carried out simultaneously, with almost no temperature difference. It precisely controls heating and cooling, making the sealing welding time adjustable, and the mold does not lift up during cooling, ensuring the forming effect.

[0055] The irregular sealing part 9 includes an upper mold beam 901, a lower mold beam 902, an adjustment device 1010, and a cloth feeding device 908, which are used for irregular welding.

[0056] The intermediate correction section 11 includes a correction frame A correction movable frame 1101, a correction frame A correction fixed frame 1102, and a correction frame B edge suction device 1103, which are used for secondary correction.

[0057] The bottom sealing part 12 includes a power cylinder 1201 and a bottom sealing mold 1202, which are used to weld the bottom of the bag;

[0058] The waste edge 13 includes a servo motor 1301, a vibrating knife assembly 1304 and a synchronous belt 1303, which are used to automatically remove the waste edge. The vibrating knife assembly sliding block 1305 is connected to the frame through a linear guide rail.

[0059] The fixed-length section 14 includes an active polyurethane roller 1401 and a movable passive mechanism 1402 for fixed-length traction. The active motor 1403 is connected to the active polyurethane roller 1401 via a planetary reducer.

[0060] The flying knife cutting section 15 includes a pneumatic blade cutter 1501, used for cutting finished products;

[0061] The automatic material receiving section 16 includes a mechanical gripper 1601 and a fabric receiving track 1603 for stacking finished products. The support of the fabric receiving adjustment wheel 1602 is provided with an elongated hole adjustment groove.

[0062] Specifically, in the feeding section, the air shaft 101 and safety chuck 102 fix and tighten the film material, and the magnetic powder brake 103 adjusts the tension. The single-layer fabric is folded and conveyed through the safety chucks 102 on both sides. At the same time, the correction sensor 201 of the correction mechanism 2 cooperates with the feeding rack 202 to ensure that the film material is conveyed in the center. The traction section is driven by the reducer motor 301 to drive the active polyurethane roller 302, which drives the passive small roller 303 to achieve film material traction. The floating device 401 of the floating constant tension mechanism 4 works in conjunction with the auxiliary cylinder 402 to ensure that the tension of the film material is stable during the conveying process. After the multi-roll single-layer film folding and collecting rack section 5 is assembled, it enters the sealing and hot sealing section 6. The sealing mold 601 and the heat sealing platform 602 weld the edge seam under the correction action of the pressure roller 603. The constant temperature control mechanism 701 accurately controls the welding temperature to ensure the welding quality. The adjustable feed roller 801, fixed feed roller 802, and screw adjustment device 803 of the handwheel frame section 8 can flexibly adjust the film material conveying path. Subsequently, the film material enters the irregular sealing section 9, where it completes irregular welding under the guidance of the upper mold beam 901, lower mold beam 902, upper mold beam 2 1001, lower mold beam 2 1002, and adjustment device 1010. After welding, the film material is released by the first and second fabric feeding devices 908 and 1008. The intermediate correction section 11, with its correction frame A movable correction frame 1101, correction frame A fixed correction frame 1102, and correction frame B edge suction device 1103, performs secondary correction on the film material to further ensure accurate film material positioning.

[0063] Reference Figures 1-11The irregular sealing section 9 includes an upper mold beam 901 and a lower mold beam 902, with the upper mold beam 901 connected to the frame via a mold support 1003. An adjusting wheel 1004 is connected to an adjusting screw 1005 and an intermediate partition 1006 via a bevel gear set. The output shaft of the power transmission mechanism 1007 is connected to a fabric feeding device 1008 via a spline. A fabric feeding motor 1009 drives an auxiliary adjusting shaft 1011 via a synchronous belt. The irregular sealing section 9 includes an upper mold beam 901 and a lower mold beam 902, with the upper mold beam 1001 being replaceable. The upper mold beam 901 and lower mold beam 902, along with the second upper mold beam 1001 and the second lower mold beam 1002, are suitable for welding different shapes. The upper mold beam 901, lower mold beam 902, and the second upper mold beam 1001 and the second lower mold beam 1002 are welded via mold support 903, adjusting wheel 904, adjusting screw 905, intermediate partition 906, and power transmission mechanism 907. The constant temperature control mechanism 701 employs closed-loop control, monitoring the welding temperature in real time and adjusting the heating power to ensure a constant temperature during welding. During cooling, the mold remains in its original position to prevent sealing deformation. The pressure roller 603 of the edge-heating section 6 is equipped with a correction function to ensure that the edge of the film is flat, which is conducive to welding and forming. The floating device 401 of the floating constant tension mechanism 4 automatically adjusts its height through the auxiliary cylinder 402 to maintain uniform tension of the film and prevent wrinkles. The intermediate correction section 11, the correction frame A correction movable frame 1101 is connected to the correction frame A correction fixed frame 1102 through a linear guide rail, and the swing arm of the correction frame B edge suction device 1103 is hinged to the correction frame B fixed frame 1104 through a rotary cylinder to remove the waste edge part 13. The vibrating knife assembly 1304 is driven by a servo motor 1301. The output shaft of the servo motor 1301 is connected to the synchronous wheel 1302 via a key. Precise cutting is achieved through the synchronous belt 1303. The mechanical gripper 1601 of the automatic waste edge removal and automatic material collection part 16 adopts self-sensing recognition technology to automatically grab finished products and stack them along the fabric collection track 1603. The handwheel frame part 8 includes an adjustable fabric roller 801, a fixed fabric roller 802, and a screw adjustment device 803, which are used to precisely adjust the film material conveying path.

[0064] Specifically, the power cylinder 1201 of the bottom sealing section 12 drives the bottom sealing mold 1202 to weld the bag bottom; the servo motor 1301 of the waste edge trimming section 13 drives the vibrating knife group 1304 to precisely trim excess waste edges; the active polyurethane roller 1401 of the length-fixing section 14 cooperates with the movable passive mechanism 1402 to achieve fixed-length traction of the film material; finally, the pneumatic blade cutter 1501 of the flying knife cutting section 15 cuts the film material into finished products, and the mechanical gripper 1601 of the automatic material collection section 16 stacks and collects the finished products along the collection track 1603. The entire production process covers film material conveying, multiple precise corrections, diversified welding, efficient edge trimming, precise cutting, and automatic collection, etc. The close cooperation of each part greatly improves the production efficiency and quality of the inner packaging bags and realizes fully automated production.

[0065] Working principle: First, the air shaft 101 and safety chuck 102 of the feeding section fix and tighten the film material, and the magnetic powder brake 103 adjusts the tension. The single-layer fabric is folded and conveyed through the safety chucks 102 on both sides; the correction sensor 201 and feeding rack 202 of the correction mechanism 2 ensure that the film material is centered; the reducer motor 301 of the traction section 3 drives the active polyurethane roller 302 and the passive small roller 303 to pull the film material; the floating device 401 of the floating constant tension mechanism 4 and The auxiliary cylinder 402 maintains stable tension; after the film material is gathered by the multi-roll single-layer film folding and collecting rack section 5, it enters the sealing and hot sealing section 6. The sealing mold 601 and the heat sealing platform 602 weld the edge seam under the correction of the pressure roller 603, and the constant temperature control mechanism 701 ensures the welding quality; the adjustable feed roller 801, the fixed feed roller 802 and the screw adjustment device 803 of the handwheel frame section 8 adjust the film material path; subsequently, the film material passes through the upper mold beam 901 and the lower mold of the irregular sealing section 9. Under the guidance of beam 902, upper mold beam 1001, lower mold beam 1002, and adjusting device 1010, irregular welding is completed; fabric feeding device 1 908 and fabric feeding device 2 1008 release the film material; the intermediate correction section 11 uses correction frame A correction movable frame 1101, correction frame A correction fixed frame 1102, and correction frame B edge suction device 1103 for secondary correction; the power cylinder 1201 of the bottom sealing section 12 drives the bottom sealing mold 1202 to weld the bag bottom; the waste edge is cut off. The servo motor 1301 of section 13 drives the vibrating knife group 1304 to remove waste edges; the active polyurethane roller 1401 and the movable passive mechanism 1402 of the fixed length section 14 realize fixed length traction; the pneumatic blade cutter 1501 of the flying knife cutting section 15 cuts the finished product; finally, the mechanical gripper 1601 of the automatic material collection section 16 stacks the finished product along the cloth collection track 1603, realizing fully automated production of film material conveying, correction, welding, edge cutting, fixed length cutting and automatic collection.

[0066] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A packaging inner bag forming machine, characterized in that: include: The feeding section (1) includes an air shaft (101), a safety chuck (102), and a magnetic powder brake (103), which are used to fix and tighten the film material and adjust the feeding tension; The alignment mechanism (2), including an alignment sensor (201) and a feeding rack (202), is used to ensure that the film material is centered during feeding; The traction section (3) includes a reducer motor (301), an active polyurethane roller (302), and a passive small roller (303) for traction of the film material; The floating constant tension mechanism (4) includes a floating device (401) and an auxiliary cylinder (402) for maintaining stable tension of the film material; The multi-roll single-layer film folding and folding rack section (5) is used to gather and fold multiple rolls of single-layer film. The edge sealing part (6) includes a sealing mold (601), a heat sealing platform (602) and a pressure roller (603) for welding the edge seam of the film material; The sealing control mechanism (7) includes a constant temperature control mechanism (701) for real-time adjustment of welding temperature. Signal feedback and control are carried out simultaneously, with almost no temperature difference. It accurately controls heating and cooling, making the sealing welding time adjustable, and the mold does not lift up during cooling, ensuring the forming effect. The irregular sealing part (9) includes an upper mold beam (901), a lower mold beam (902), an adjustment device (1010), and a cloth-pulling device (908), which are used for irregular welding; The intermediate correction section (11) includes a correction frame A correction movable frame (1101), a correction frame A correction fixed frame (1102), and a correction frame B edge suction device (1103), which are used for secondary correction; The bottom sealing part (12) includes a power cylinder (1201) and a bottom sealing mold (1202) for welding the bottom of the bag; The waste edge removal part (13) includes a servo motor (1301), a vibrating knife assembly (1304) and a synchronous belt (1303) for automatically removing waste edges. The vibrating knife assembly sliding block (1305) is connected to the frame through a linear guide rail. The fixed-length section (14) includes an active polyurethane roller two (1401) and a movable passive mechanism (1402) for fixed-length traction. The active motor (1403) is connected to the active polyurethane roller two (1401) through a planetary reducer. The flying knife cutting section (15) includes a pneumatic blade cutter (1501) for cutting finished products; The automatic material receiving section (16) includes mechanical grippers (1601) and a fabric receiving track (1603) for stacking finished products. The support of the fabric receiving adjustment wheel (1602) is provided with an elongated hole adjustment groove. The handwheel frame section (8) includes an adjustable feed roller (801), a fixed feed roller (802), and a screw adjustment device (803) for precisely adjusting the film material conveying path.

2. The packaging inner bag forming machine according to claim 1, characterized in that: The irregular sealing part two (10) has an upper mold beam two (1001) connected to the frame through a mold support two (1003), an adjusting wheel two (1004) connected to an adjusting screw two (1005) and an intermediate partition two (1006) through a bevel gear set, an output shaft of a power transmission mechanism two (1007) connected to a cloth feeding device two (1008) through a spline, and a cloth feeding motor (1009) driving an auxiliary adjusting shaft (1011) through a synchronous belt.

3. The packaging inner bag forming machine according to claim 1, characterized in that: The irregular sealing part (9) includes an upper mold beam (901), a lower mold beam (902), an upper mold beam II (1001), and a lower mold beam II (1002) with replaceable molds, which are suitable for welding requirements of different shapes. The upper mold beam (901), the lower mold beam (902), the upper mold beam II (1001), and the lower mold beam II (1002) are welded through a mold support (903), an adjusting wheel (904), an adjusting screw (905), an intermediate partition layer (906), and a power transmission mechanism (907).

4. The packaging inner bag forming machine according to claim 1, characterized in that: The constant temperature control mechanism (701) adopts closed-loop control, monitors the welding temperature in real time and adjusts the heating power to ensure that the temperature is constant during welding and that the mold remains in place during cooling to avoid sealing deformation. The pressure roller (603) of the sealing heat-pressing part (6) is equipped with a correction function to ensure that the edge of the film is flat and conducive to welding and forming.

5. The packaging inner bag forming machine according to claim 1, characterized in that: The floating device (401) of the floating constant tension mechanism (4) automatically adjusts its height through the auxiliary cylinder (402) to maintain uniform tension of the film material and prevent wrinkles.

6. The packaging inner bag forming machine according to claim 1, characterized in that: In the intermediate correction section (11), the correction frame A correction movable frame (1101) is connected to the correction frame A correction fixed frame (1102) through a linear guide rail. The swing arm of the correction frame B edge suction device (1103) is hinged to the correction frame B fixed frame (1104) through a rotary cylinder. The vibrating knife group (1304) of the waste edge removal section (13) is driven by a servo motor (1301). The output shaft of the servo motor (1301) is connected to the synchronous pulley (1302) through a key. Precise cutting is achieved through the synchronous belt (1303), and the waste edge removal is automated.

7. The packaging inner bag forming machine according to claim 1, characterized in that: The mechanical grippers (1601) of the automatic material receiving section (16) adopt self-sensing recognition technology to automatically grab finished products and stack them along the receiving track (1603).

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