Automatic manufacturing device for inside-folding valve port woven bag

Abstract

The utility model discloses a kind of inner valve port woven bag automation manufacturing devices, it is related to bag making equipment technical field, it includes: rack, outer woven bag feeding assembly, inner film bag feeding assembly, inner film searing assembly, bag moving assembly, edge seaming machine, valve port inner folding assembly, waste hot cutting assembly, cost integration component, it is characterized by: the rack front end side is sequentially provided with outer woven bag feeding assembly, inner film bag feeding assembly, inner film searing assembly, valve port inner folding assembly and waste hot cutting assembly, cost integration component is arranged at rack end, rack is equipped with bag moving assembly. Compared with prior art, the present application adopts multiple sets of mechanical equipment to realize the production of inner valve port woven bag, which improves the accuracy and automation level of the equipment, thereby reducing the manpower and material resources of the manufacturer, improving the production efficiency and product quality of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of woven bag manufacturing, and in particular to an automated manufacturing device for woven bags with inward folding valve openings, belonging to the technical field of bag making equipment. Background Technology

[0002] Currently, traditional woven bags with inner linings consist of an inner lining and an outer woven bag. The inner lining is typically 3-5 cm longer than the outer bag due to packaging requirements. Before use, finished woven bags are manually welded together using ultrasonic welding; this entire process is done manually. First, the inner lining and outer bag are aligned manually, with the inner lining manually opened and the alignment completed by visual inspection. Second, the inner edge of the bag opening is manually folded and pressed tightly. Finally, the bag opening is heat-sealed manually while being pressed tightly. This entire process requires manual intervention, which easily leads to inconsistent quality at the interface between the inner and outer bags, low yield, and low labor productivity. Furthermore, the heat-sealing process requires manual feeding and clamping, posing certain safety hazards. Additionally, the operator's skill level and mood significantly impact product quality, resulting in poor product quality stability and negatively affecting the company's economic benefits. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model provides an automated manufacturing device for woven bags with inward-folded valve openings.

[0004] To achieve the above objectives, the present invention provides an automated manufacturing device for woven bags with inward-folded valve openings, comprising: a frame, an outer woven bag feeding assembly, an inner film bag feeding assembly, an inner film hot-pressing assembly, a bag transfer assembly, a sewing machine, a valve opening inward-folding assembly, a waste material hot-cutting assembly, and a cost integration assembly. The device is characterized in that: the front end of the frame is provided with the outer woven bag feeding assembly, the inner film bag feeding assembly, the inner film hot-pressing assembly, the valve opening inward-folding assembly, and the waste material hot-cutting assembly arranged sequentially; the cost integration assembly is located at the end of the frame; a bag transfer assembly is provided on the frame; a first sewing machine located at the end of the bag body is mounted on the frame; a second sewing machine located at the front end of the bag body is mounted on the frame; a hot / cold knife switching assembly is provided at the outlet port of the outer woven bag feeding assembly; and a heat-sealing and cutting assembly is provided at the outlet port of the inner film bag feeding assembly.

[0005] Specifically, the outer woven bag feeding assembly consists of a tension roller group, a transition roller group, and an outer woven bag substrate storage roller. The outer woven bag substrate storage roller is mounted on both sides of a lifting bracket, which is driven to swing up and down by a cylinder. A tension roller group and a transition roller group are provided between the outer woven bag substrate storage roller and the discharge port of the outer woven bag feeding assembly. The inner film bag feeding assembly consists of a tension roller group, a transition roller group, and an inner film bag substrate storage roller. The inner film bag substrate storage roller is mounted on both sides of a lifting bracket, which is driven to swing up and down by a cylinder. A transition roller group is provided between the inner film bag substrate storage roller and the discharge port of the outer woven bag feeding assembly.

[0006] Specifically, the hot and cold knife switching assembly includes a bracket with a hot knife assembly, a cold knife assembly, and a feeding assembly. The hot knife assembly and the cold knife assembly can cut the strip-shaped bag blank fed by the feeding assembly into the bag body by hot cutting and cold cutting. The frame is slidably provided with a lifting seat that is driven to move up and down by a lead screw. The movement of the lifting seat can match the hot knife assembly or cold knife assembly installed on itself with the bag feeding assembly fixed on the bracket. After the feeding assembly feeds the bag blank into the hot knife assembly or cold knife assembly for cutting by the upper and lower feeding pressure rollers and feeding rollers, several air blowing pipes of the feeding assembly can blow the bag body outward.

[0007] Specifically, the hot knife assembly and the cold knife assembly each have a hot knife seat and a cold knife seat fixed on the lifting base. When the lifting base moves to match the hot knife seat or the cold knife seat with the feeding assembly, the feeding assembly can transport the bag blank above it. The hot knife and cold knife of the hot knife assembly and the cold knife assembly can be driven by the upper cam assembly and the lower cam assembly to approach the bag blank for cutting. The hot knife and cold knife of the hot knife assembly and the cold knife assembly are each slidably mounted on the lifting base via a slider and a slide rail. When the upper cam assembly and the lower cam assembly drive the hot knife and cold knife to slide linearly, they can move closer to or further away from the hot knife seat and the cold knife seat respectively. The upper cam assembly and the lower cam assembly each have a rotatable shaft, and the cam eccentrically fixed on the shaft is fitted with a cam sleeve on its own rotation. The upper cam assembly and the lower cam assembly are connected to the hot knife and the cold knife respectively through the connecting arms of their respective cam sleeves, thereby driving them to slide linearly in the lifting seat. The hot knife assembly also includes a hot knife crossbeam, which can be driven by the upper cam assembly to slide linearly with the help of a slider and a slide rail. The hot knife assembly also includes a de-drying roller with several de-drying wheels. The de-drying roller can be driven to rotate by the pushing element provided on the hot knife crossbeam, so that the de-drying wheels can rub open the hot-cut and bonded ends of the bag blank. The feeding roller, driven to rotate by the feeding roller motor, has several slots formed on itself. The air blowing pipe for blowing out the bag body is laid at the slots, and its air inlet end is connected to the hollow pipe of the external air source provided on the bracket. The feeding assembly is also provided with a feeding support plate behind the feeding pressure roller and the feeding roller.

[0008] Specifically, a rotating shaft with several fixed cams is horizontally arranged on the support base of the inner membrane hot-pressing assembly. A drive motor drives the rotating shaft to rotate. The adsorption opening crossbar is connected to the cam sleeve sleeve fitted on the outside of the cam. A front-to-back displacement cylinder is arranged on the support base, which drives the heat-sealing base to move back and forth. A lateral displacement cylinder is arranged on the heat-sealing base. The push rods of the two sets of lateral displacement cylinders are connected to the bag opening heat-sealing blocks on the left and right sides. The adsorption opening crossbar is connected to the exhaust pump. Slide rails are provided on both sides inside the support base. The slider moves up and down along the slide rail. The cam sleeve is connected to the top of the adsorption opening horizontal bar through the connecting rod. The bottom of the adsorption opening horizontal bar is provided with several through holes, which are connected to the air outlet at the top. The air outlet is connected to the exhaust pump through the air outlet pipe. The support base is located on one side of the bag transfer assembly platform of the frame. The support base is provided with an outer shell baffle. The bag opening heat sealing block is set on the mounting plate. The push rods of the two sets of transverse displacement cylinders are respectively connected to the mounting plate. The heat sealing base is provided with double transverse guide rails. The transverse slider at the bottom of the mounting plate moves left and right along the double transverse guide rails.

[0009] Specifically, the valve port inward folding assembly has a double slide rail on its support base. A forward and backward displacement cylinder mounted on the support base intersects with the bottom of the heat-sealing base. The slider of the heat-sealing base moves forward and backward along the double slide rail. A lower adsorption plate is located below the adsorption opening crossbar. The through hole of the lower adsorption plate connects to a vacuum pump. A lifting drive device is located below the lower adsorption plate, driving the lower adsorption plate to move up and down. This includes an upper adsorption seat and a lower adsorption seat that can be relatively close or far apart on the frame. Each of the upper and lower adsorption seats has a fixed stand. The stand is hinged to a support claw via a shaft. The support claw cylinder on the stand is hinged to the shaft via a connecting arm. The upper and lower adsorption seats... During displacement, the support claw cylinder can drive the support claw to hook or release the bag head. When the bag head is adsorbed and opened, the folding plate on one side can rotate to fold it open. Behind the upper adsorption seat is a pressure plate that is driven to rise and fall by the pressure plate cylinder. When the bag head is folded open by the folding plate, the pressure plate can press down on the bag head to shape it. The upper and lower adsorption seats are each driven to rise and fall by the lifting cylinder provided on the frame. The frame is also fixed with guide sleeves. The upper and lower adsorption seats have guide rods that are slidably connected to the corresponding guide sleeves. The upper and lower adsorption seats, which are respectively connected to air ducts, have a number of adsorption holes on the side facing the bag. The two achieve adsorption and opening of the bag head through the adsorption holes.

[0010] Specifically, one end of the folding plate is fixed to the folding plate motor, and its movable end can be rotated through the folding plate motor to pass between the upper and lower adsorption seats to fold the opening of the bag head. The folding plate is placed on the support plate of the frame, and the joint formed at its bottom passes through the support plate and is connected to the folding plate motor.

[0011] Specifically, the waste material hot cutting assembly includes a support base mounted on a frame. The support base has a hot knife for cutting. A rotating shaft with several cams fixed on it is horizontally arranged on the support base. The hot knife is connected to a cam sleeve sleeved on the outside of the cam. When the bag body after folding is dragged to the knife holder on the support base by the bag transfer assembly, the rotating shaft can be driven by a motor to rotate, so that the hot knife moves down with the cooperation of the cam and the cam sleeve to cut the front end of the bag body. The support base is slidably equipped with a lifting seat through a slide rail and a slider. The lifting seat is connected to the cam sleeve and the hot knife by connecting rods set at its top and bottom, respectively. The cam sleeve is hinged to the connecting rod with a hinge joint at the top of the lifting seat through a connecting arm with a first fisheye buckle at its bottom. The lifting seat is also equipped with an upper pressure roller. The upper pressure roller can move down with the lifting seat to clamp the front end of the bag body together with the lower pressure roller set at the front end of the knife holder on the support base.

[0012] Specifically, the lower pressure roller can rotate to send the cut-off portion of the bag outward. The upper pressure roller is connected to guide rods at both ends by second fisheye buckles. The guide rods slide into the guide sleeves fixed on the front mounting plate of the lifting seat. The top of the guide rod has a retaining ring that can abut against the guide sleeve. The upper pressure roller is equipped with several pressure rollers with rough surfaces. The upper pressure roller and the lower pressure roller together clamp the front end of the bag. An opening groove is formed on one side of the support seat, through which the front end of the bag to be cut can pass.

[0013] Specifically, the cost integration component includes a storage platform and a tipping bracket. The tipping bracket is located at the end of the frame, and a motor drives the tipping bracket to flip up and down. A bag opening smoothing component is provided on one side of the inner film hot-film assembly. The smoothing cylinder of the bag opening smoothing component drives the two transverse brushing parts to move laterally. The bag transfer assembly has two sets of synchronous belts that fit together. The two sets of synchronous belts can jointly clamp the tail of the bag to drag the bag. The bag transfer assembly also includes a pressure block on the frame. When the tail of the bag is clamped between the two sets of synchronous belts, the synchronous belts and the pressure block can abut against each other.

[0014] This utility model has at least the following advantages: The cold and hot knife switching component can install cold and hot knives on the same device, and can freely change the cutting method to adapt to bag blanks of different materials. One device can process multiple substrates. The cut bag can be blown out through the air blowing pipe to avoid bag retention. The support claw structure used to hook the bag head in the valve port inward folding assembly is compact, and the overall equipment has a high degree of simplification. The support claw is installed on the upper and lower suction seats. No matter how wide the bag head is open, the support claw can hook the bag head to maintain its open state stability. The reciprocating rotation of the folding plate can realize the automatic folding action of the bag head. The waste material hot cutting assembly uses a motor-driven cam and cam sleeve to achieve rapid lifting and lowering of the hot knife, thereby improving the cutting efficiency of the bag. The cam sleeve and the lifting seat are hinged together by a fisheye buckle and a hinge joint, which can prevent the cam sleeve from interfering with the lifting seat when it rotates. The front end of the bag is clamped by upper and lower pressure rollers so that the hot knife can perform cutting operations stably. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention.

[0016] Figure 2 This is a 3D view of the inner membrane heat-sealing assembly.

[0017] Figure 3 This is a three-dimensional view of the internal structure of the inner membrane heat-sealing assembly.

[0018] Figure 4 This is a top view of the inner membrane heat-sealing assembly.

[0019] Figure 5 This is the front view of the inner membrane heat-sealing assembly.

[0020] Figure 6 This is a magnified view of a portion of the inner membrane heat-sealing assembly.

[0021] Figure 7 This is a 3D view of the valve port inward folding assembly.

[0022] Figure 8 This is an enlarged schematic diagram of the valve port inward folding assembly.

[0023] Figure 9 This is an enlarged schematic diagram of the valve port inward folding assembly.

[0024] Figure 10 This is a schematic diagram of a folding plate driven structure.

[0025] Figure 11 This is a schematic diagram of the bag transfer assembly.

[0026] Figure 12 This is a 3D view of the waste material hot cutting assembly.

[0027] Figure 13 This is a 3D view of the internal structure of the waste material hot cutting assembly.

[0028] Figure 14 This is a 3D view of the internal structure of the waste material hot cutting assembly.

[0029] Figure 15 This is a magnified view of a portion of the waste material hot-cutting assembly.

[0030] Figure 16 This is a magnified view of a portion of the waste material hot-cutting assembly.

[0031] Figure 17 This is a 3D view of the hot / cold blade switching component.

[0032] Figure 18 This is a 3D view of the hot / cold blade switching component.

[0033] Figure 19 This is a schematic diagram of the hot and cold blade switching component.

[0034] Figure 20 This is a schematic diagram of the hot and cold blade switching component.

[0035] Figure 21 This is a cross-sectional view of the hot and cold blade switching component.

[0036] Figure 22 This is a magnified view of a portion of the hot and cold blade switching component.

[0037] Figure 23 This is a magnified view of a portion of the hot and cold blade switching component.

[0038] In the diagram, the components are: 1. Frame; 2. Outer woven bag feeding assembly; 3. Inner film bag feeding assembly; 4. Inner film hot-pressing assembly; 5. Bag transfer assembly; 6. Sewing machine; 7. Valve inward folding assembly; 8. Waste material hot-cutting assembly; 9. Hot and cold knife switching assembly; 10. Cost integration assembly; 11. Heat sealing and cutting assembly; 21. Tensioning roller group; 22. Transition roller group; 41. Support base; 42. Drive motor; 43. Adsorption opening crossbar; 44. Front and rear displacement cylinder; 45. Lateral displacement cylinder; 46. Bag opening heat sealing block; 47. Slide rail; 48. Slider; 49. Lower adsorption plate; 410. Bag transfer assembly platform; 411. Outer shell baffle. 412; Cam 413, Rotary shaft 414, Heat-sealing base 415; Synchronous belt 51, Pressure block seat 52, Pressure block 53; Lifting cylinder 71, Guide sleeve 72, Guide rod 73, Support plate 74, Upper suction seat 75, Lower suction seat 76, Folding plate 77, Folding plate motor 78, Support claw 79, Stand 710, Shaft 711, Connecting arm 712, Support claw cylinder 713, Pressure plate 714, Pressure plate cylinder 715; Folding plate 81, Support plate 82, Support seat 83, Opening slot 84, Slide rail 85, Rotary shaft 86, Cam 87, Cam sleeve 88, Connecting arm 89, First fisheye buckle 810 Motor 811, Lifting seat 812, Slider 813, Connecting rod 814, Hinge joint 815, Mounting plate 816, Guide sleeve 817, Hot knife 818, Knife holder 819, Upper pressure roller 820, Guide rod 821, Second fisheye buckle 822, Retaining ring 823, Pressure roller 824, Lower pressure roller 825; Hot knife assembly 91, Cold knife assembly 92, Feeding assembly 93, Lifting seat 94, Lead screw 94, Lead screw motor 96, Hot knife 97, Hot knife holder 98, Upper cam assembly 99, Rotary shaft motor 910, Rotary shaft 911, Cam 912, Cam sleeve 913, Connecting arm 914, Fisheye 915, Hot knife crossbeam 916, Long connecting rod 917, Short connecting rod 918, Spring shaft 919, Detachment roller 920, Hinge 921, Detachment wheel 922, Protrusion 923, Cold knife assembly 924, Cold knife 925, Cold knife holder 926, Lower cam assembly 927, Gear 928, Cold knife holder 929, Connecting piece 930, Bag feeding assembly 931, Pressure roller 932, Adjusting seat 933, Feeding pressure roller 934, Feeding roller 935, Feeding roller motor 936, Synchronous pulley 937, Synchronous belt 938, Air blowing pipe 939, Support pipe 940, Feeding tray 941. Detailed Implementation

[0039] 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.

[0040] like Figures 1-23The diagram shows an automated manufacturing device for woven bags with inward-folded valve openings, comprising: a frame, an outer woven bag feeding assembly, an inner film bag feeding assembly, an inner film hot-pressing assembly, a bag transfer assembly, a sewing machine, a valve opening inward-folding assembly, a waste material hot-cutting assembly, and a cost integration assembly. The frame has the outer woven bag feeding assembly, inner film bag feeding assembly, inner film hot-pressing assembly, valve opening inward-folding assembly, and waste material hot-cutting assembly arranged sequentially on one side of its front end. The cost integration assembly is located at the end of the frame. A bag transfer assembly is mounted on the frame. A first sewing machine located at the end of the bag is mounted on the frame, and a second sewing machine located at the front of the bag is mounted on the frame. The outlet port of the outer woven bag feeding assembly is equipped with a hot / cold knife switching assembly, and the outlet port of the inner film bag feeding assembly is equipped with a heat-sealing and cutting assembly. This application uses multiple or one set of controllers to send control signals to each outer woven bag feeding assembly, inner film bag feeding assembly, inner film hot-pressing assembly, bag transfer assembly, sewing machine, valve inward folding assembly, waste material hot-cutting assembly, cost integration assembly, hot and cold knife switching assembly, and heat sealing and cutting assembly. This control system is designed and implemented by those skilled in the art, and will not be described in detail here.

[0041] In the above scheme, the outer woven bag feeding assembly consists of a tension roller group, a transition roller group, and an outer woven bag substrate storage roller. The outer woven bag substrate storage roller is mounted on both sides of a lifting bracket, which is driven to swing up and down by a cylinder. A tension roller group and a transition roller group are provided between the outer woven bag substrate storage roller and the discharge port of the outer woven bag feeding assembly. The inner film bag feeding assembly consists of a tension roller group, a transition roller group, an inner film bag substrate storage roller, and an inner film processing plate. The inner film bag substrate storage roller is mounted on both sides of a lifting bracket, which is driven to swing up and down by a cylinder. A transition roller group is provided between the inner film bag substrate storage roller and the discharge port of the outer woven bag feeding assembly. The structural design of the outer woven bag feeding assembly and the inner film bag feeding assembly is readily conceived by those skilled in the art. A drive motor and a drive device continuously transport the substrates of the outer woven bag and the inner film bag forward, and the transition roller group transports the substrate to a designated position. The tension roller group controls the tension of the substrate.

[0042] The inner film bag feeding assembly is also equipped with an inner film thermal cutting knife group on the inner film processing plate. The inner film thermal cutting knife group is moved up and down by a lifting cylinder, and multiple pressure rollers are driven by a drive motor to continuously transport the inner film forward. At this time, the bag opening assembly on one side of the bag transfer assembly opens the bag opening, so that the inner film is transported into the outer woven bag. This structure is a conventional technical design and will not be described in detail here.

[0043] The above-described solution includes a support frame comprising a hot knife assembly, a cold knife assembly, and a feeding assembly. The hot knife assembly and the cold knife assembly can cut the strip-shaped bag blank fed by the feeding assembly into bag bodies using hot and cold cutting methods. The frame is equipped with a lifting seat that is driven to move up and down by a lead screw. The movement of the lifting seat allows the hot knife assembly or cold knife assembly mounted on it to match the bag feeding assembly fixed on the support frame. The feeding assembly uses upper and lower feeding pressure rollers and feeding rollers to feed the bag blank into the hot knife assembly or cold knife assembly. After cutting, several air pipes of the feeding assembly can blow the bag outward. The hot knife assembly and cold knife assembly respectively have hot knife seats and cold knife seats fixed on the lifting base. When the lifting base moves so that the hot knife seat or cold knife seat matches the feeding assembly, the feeding assembly can transport the bag blank above it. The hot knife and cold knife of the hot knife assembly and cold knife assembly can be driven by the upper cam assembly and lower cam assembly to approach the bag blank for cutting. The hot knife and cold knife of the hot knife assembly and cold knife assembly are each slidably mounted on the lifting base via sliders and slide rails. When the upper and lower cam assemblies drive the hot and cold blades to slide linearly, they can move closer to or further away from the hot and cold blade holders respectively. Each of the upper and lower cam assemblies has a rotatable shaft. A cam eccentrically fixed on the shaft rotates and is fitted with a cam sleeve. The upper and lower cam assemblies are connected to the hot and cold blades respectively via connecting arms of their cam sleeves, thereby driving them to slide linearly within the lifting seat. The hot blade assembly also includes a hot blade crossbeam, on which the hot blade is mounted. Driven by the upper cam assembly, the hot knife assembly also includes a de-drying roller with several de-drying wheels. The de-drying roller can be rotated by the pushing element provided on the hot knife beam, so that the de-drying wheels will rub open the hot-cut and bonded ends of the bag blank. The feeding roller, driven to rotate by the feeding roller motor, has several slots formed on itself. The air blowing pipe for blowing out the bag body is laid at the slots, and its air inlet end is connected to the hollow pipe of the external air source provided on the bracket. The feeding assembly is also provided with a feeding support plate behind the feeding pressure roller and the feeding roller.

[0044] Furthermore, the aforementioned hot knife assembly / cold knife assembly is respectively disposed on the upper and lower sides of the lifting base. Each of the hot knife seat / cold knife seat is fixed to the lifting base, while the hot knife / cold knife is slidably mounted on the lifting base by means of other sliders and slide rails. When the lifting base moves to match the hot knife seat / cold knife seat with the bag feeding assembly, the upper cam assembly / lower cam assembly of the hot knife assembly / cold knife assembly can drive the hot knife / cold knife to approach the hot knife seat / cold knife seat, thereby cutting the bag blank.

[0045] Furthermore, the hot knife assembly includes a hot knife crossbeam that achieves displacement via the aforementioned slider and slide rail. The hot knife is mounted below the hot knife crossbeam via several long connecting rods. A short connecting rod with a hinge joint is installed on the top of the hot knife crossbeam 304. The upper cam assembly is hinged to the short connecting rod via a connecting arm with a fisheye buckle, thereby driving the hot knife crossbeam and the hot knife to move downward when it moves.

[0046] Specifically, the aforementioned upper cam assembly includes a rotating shaft that is horizontally arranged on the top of the lifting seat 2 and can be driven to rotate by the rotating shaft motor 313. Two cams fixed eccentrically on the rotating shaft are rotatably sleeved on their outer sides. The aforementioned connecting arm with a fisheye buckle is mounted on the cam sleeve. When the rotating shaft 323 rotates, the cam sleeve can shift up and down due to the rotation of the cams, thereby dragging the hot knife crossbeam and the hot knife closer to or away from the hot knife seat fixed on the lifting seat.

[0047] Furthermore, since the end opening of the bag blank may stick together after being cut by the hot knife, it is necessary to rub the end of the bag blank in time after the hot cutting process to prevent it from cooling and closing. The hot knife beam of the hot knife assembly is also equipped with a de-drying roller through a spring shaft. The de-drying roller is equipped with several de-drying wheels and has a hinge in the middle. The pushing element fixed on the hot knife beam is hinged to the hinge, thereby driving the de-drying roller and de-drying wheels to reciprocate. The protrusion of the de-drying wheel will rub the sticky end of the bag blank apart (the pushing element is not shown in the drawings of this application, but it can be a cylinder. This part of the structure can be referred to in the prior patent with publication number "CN207901741U").

[0048] Furthermore, the aforementioned cold knife assembly 4 includes a cold knife holder that achieves displacement via the aforementioned slider and slide rail. The cold knife is directly fixed below the cold knife holder. The aforementioned lower cam assembly is hinged to the side connecting piece of the cold knife holder via a connecting arm that also has a fisheye buckle, thereby driving the cold knife holder and the cold knife to move downward when it moves.

[0049] Specifically, the lower cam assembly has a similar structural design to the upper cam assembly. That is, the lower cam assembly also has a rotatable shaft, a cam eccentrically fixed on the shaft, and a cam sleeve with a connecting arm and a fisheye buckle. However, in order to improve the utilization rate of the internal space of the equipment, the shaft of the lower cam assembly is not directly connected to the shaft motor at its end. Instead, the shaft motor is installed in the lifting seat 2, and the shaft motor drives the shaft to rotate by two meshing gears.

[0050] Furthermore, the aforementioned feeding assembly includes a pressure roller and a feeding roller arranged vertically within the frame. The feeding roller is rotatably fixed to the frame 1 by a feeding roller motor driven by a synchronous pulley and synchronous belt. The pressure roller is positioned above the feeding roller with an adjustable seat that can be finely adjusted vertically. Several feeding pressure rollers are fixed at intervals on the pressure roller and form a clamping gap with the feeding roller to hold the bag blank. When the feeding roller rotates, the bag can be conveyed toward the hot knife assembly / cold knife assembly.

[0051] Specifically, since the bag body is cut off from the front end of the preform, the bag body will remain on the hot / cold knife holder and cannot be automatically output. Therefore, the feeding assembly 5 also has several air blowing pipes that can blow the bag body out. The frame is fixed with a feeding tray behind the pressure roller and the feeding roller through two support pipes. The rear end of the preform can be placed on the feeding tray. Both support pipes are hollow tubes, and one of them, which is close to the pressure roller and the feeding roller, is equipped with several air blowing pipes facing the lifting seat 2 on the outside. The air inlet of the air blowing pipe is connected to an external air source through the hollow support pipe, so that the bag body remaining on the hot / cold knife holder can be blown out.

[0052] Specifically, to prevent the air blowing pipe from being squeezed by the feeding roller and the feeding pressure roller, the feeding roller has a groove on its surface, and the air blowing pipe is laid in the groove.

[0053] The operation of this design is roughly as follows: First, the lead screw drives the lifting seat to move up and down, so that the hot knife holder / cold knife holder matches the feeding assembly; second, the pressure roller and feeding roller of the feeding assembly feed the bag blank into the hot knife holder / cold knife holder; then, the hot knife / cold knife descends to cut a bag body out of the bag blank. If the hot cutting method is used, the exit roller rotates after cutting to rub open the end of the bag blank; finally, the hot knife / cold knife returns to its original position, and the air blowing pipe blows the bag body outward.

[0054] In the above scheme, a rotating shaft with several fixed cams is horizontally arranged on the support base of the inner membrane hot-pressing assembly. A drive motor drives the rotating shaft to rotate. The adsorption opening crossbar is connected to the cam sleeve sleeve fitted on the outside of the cam. A front-to-back displacement cylinder is arranged on the support base. The front-to-back displacement cylinder drives the heat-sealing base to move back and forth. A lateral displacement cylinder is arranged on the heat-sealing base. The push rods of the two sets of lateral displacement cylinders are connected to the bag opening heat-sealing blocks on the left and right sides. The adsorption opening crossbar is connected to the exhaust pump. Slide rails are provided on both sides inside the support base. The slider moves up and down along the slide rail. The cam sleeve is connected to the top of the adsorption opening horizontal bar through the connecting rod. The bottom of the adsorption opening horizontal bar is provided with several through holes, which are connected to the air outlet at the top. The air outlet is connected to the exhaust pump through the air outlet pipe. The support base is located on one side of the bag transfer assembly platform of the frame. The support base is provided with an outer shell baffle. The bag opening heat sealing block is set on the mounting plate. The push rods of the two sets of transverse displacement cylinders are respectively connected to the mounting plate. The heat sealing base is provided with double transverse guide rails. The transverse slider at the bottom of the mounting plate moves left and right along the double transverse guide rails.

[0055] The bag transfer assembly transports the woven bag with the inner film to the designated position. At this point, the adsorption opening strip and the lower adsorption plate are activated to clamp the bag opening, and the air pump draws air to create negative pressure, adsorbing the upper and lower layers of the bag opening. Then, the drive motor and the lifting drive device are activated to separate the adsorption opening strip and the lower adsorption plate, opening the bag opening. Next, the front and rear displacement cylinders are activated to move the entire heat-sealing base forward, allowing the bag opening heat-sealing block to extend into the bag body. Then, the two lateral displacement cylinders are activated to push the bag opening heat-sealing blocks on the left and right sides outward, and the three sections of bag opening heat-sealing blocks (left, middle, and right) heat-seal the inner film and the woven bag. Similarly, the cylinders and motor drive each component to reset, thus completing the inner film heat sealing step, and the bag transfer assembly transports the bag to the next workstation.

[0056] In the above scheme, a double slide rail is provided on the support seat of the valve port inward folding assembly. A front-to-back displacement cylinder installed on the support seat is connected to the bottom of the heat-sealing base. The slider of the heat-sealing base moves back and forth along the double slide rail. A lower adsorption plate is provided below the adsorption opening horizontal bar. The through hole of the lower adsorption plate is connected to the air pump. A lifting drive device is provided below the lower adsorption plate. The lifting drive device drives the lower adsorption plate to move up and down. It includes an upper adsorption seat and a lower adsorption seat that can be relatively close or far apart on the frame. Each of the upper and lower adsorption seats is fixed with a stand. The stand is hinged to a support claw through a shaft. The support claw cylinder provided on the stand is hinged to the shaft through a connecting arm. When the upper and lower adsorption seats move relative to each other, the support claw cylinder can drive the support claw to hook or release the bag head. When the bag head is adsorbed and opened, the folding plate on one side can rotate to open it. The bag head is folded open. Behind the upper adsorption seat is a pressure plate that is driven to rise and fall by a pressure plate cylinder. When the bag head is folded open by the folding plate, the pressure plate can press down on the bag head to shape it. The upper and lower adsorption seats are each driven to rise and fall by a lifting cylinder on the frame. A guide sleeve is also fixed on the frame. The upper and lower adsorption seats have guide rods that are slidably connected to the corresponding guide sleeves. The upper and lower adsorption seats, each connected to an air duct, have several adsorption holes on their side facing the bag. The adsorption holes allow the bag head to be adsorbed and opened. One end of the folding plate is fixed to a folding plate motor, and its movable end can be rotated through the folding plate motor and inserted between the upper and lower adsorption seats to fold the opened bag head. The folding plate is placed on a support plate on the frame, and a connector formed at its bottom passes through the support plate and connects to the folding plate motor.

[0057] The valve bag folding mechanism includes a frame. The frame has an upper adsorption seat and a lower adsorption seat, which are arranged vertically and connected to air ducts (not shown in the figure). The upper adsorption seat and the lower adsorption seat are respectively connected to an external exhaust fan through the air duct. Under the action of the exhaust fan, the upper adsorption seat and the lower adsorption seat move down and can open the semi-finished bag body used to make the valve bag through the adsorption holes opened by themselves. At this time, the folding plate arranged on the side of the frame 1 can rotate to fold the head of the opened bag body.

[0058] Furthermore, to maintain the stability of the bag head in its open state and prevent it from being knocked off when the folding plate rotates, this design uses two barbed claws facing the bag to hook the bag head. The upper and lower suction seats each have a fixed stand. The claws are hinged to the bottom of the stand via a shaft, and a connecting arm is installed at the other end of the shaft. The connecting arm is driven by a claw cylinder hinged to the top of the stand. As the cylinder shaft of the claw cylinder extends or retracts, the connecting arm can correspondingly drive the claw to flip inward and outward, thereby hooking or releasing the bag head (the control of the claw cylinder is implemented by those skilled in the art through designing relevant circuits, which will not be described in detail here).

[0059] Furthermore, after the bag head is folded by the aforementioned folding plate, it will be in a convex state. Therefore, the frame is also equipped with a pressure plate that is driven to rise and fall by a pressure plate cylinder. The pressure plate is located behind the upper adsorption seat. After the bag head is folded, it can be pressed down to achieve shaping. At this time, obvious indentations will be pressed into the folded position of the bag.

[0060] Furthermore, the displacement function of the upper and lower adsorption seats is achieved by lifting cylinders provided on the frame. The lifting cylinders are installed on the frame plate of the frame, and their cylinder shafts are connected to the corresponding upper and lower adsorption seats. At the same time, guide sleeves are fixed on both sides of the frame plate, and the upper and lower adsorption seats have guide rods that can be inserted into the guide sleeves. With the cooperation of the guide sleeves and guide rods, the upper and lower adsorption seats can stably perform linear lifting and lowering movements.

[0061] Furthermore, the aforementioned folding plate is driven by a folding plate motor mounted on the motor plate of the frame, thereby realizing its own rotation. One end of the folding plate is connected to the folding plate motor, and the other end, as the movable end, can be inserted into the gap between the upper adsorption seat 2 and the lower adsorption seat 3 with the motor shaft as the rotation center, thereby performing a folding action on the side of the opened bag.

[0062] Specifically, since the folding plate is connected to the folding plate motor at its end, in order to prevent the folding plate 4 from falling due to its own weight, the folding plate is placed on the support plate provided on the frame, and a joint is formed at its bottom. The joint passes through the support plate and is connected to the folding plate motor.

[0063] Furthermore, several sets of bag-transferring components 7 are also arranged in parallel on the rear side of the aforementioned frame to realize the translation of the bag body. The bag-transferring components include two sets of synchronous belts that are arranged vertically and attached together. The tail of the bag body is clamped by the two sets of synchronous belts. When the synchronous belts are running, the bag body can be dragged to the folding mechanism for the folding process, or dragged to the next station for other processes.

[0064] In the above scheme, the waste material hot cutting assembly includes a support seat mounted on a frame. The support seat has a hot knife for cutting. A rotating shaft with several cams fixed on it is arranged horizontally on the support seat. The hot knife is connected to a cam sleeve sleeved on the outside of the cam. When the bag body after folding is dragged to the knife holder on the support seat by the bag transfer assembly, the rotating shaft can be driven by a motor to rotate, so that the hot knife moves down with the cooperation of the cam and the cam sleeve to cut the front end of the bag body. The support seat is slidably provided with a lifting seat through a slide rail and a slider. The lifting seat is connected to the cam sleeve and the hot knife by connecting rods set on its upper and lower sides respectively. The cam sleeve is hinged to the connecting rod with a hinge joint on the top of the lifting seat through a connecting arm with a first fisheye buckle at its bottom. The lifting seat is also equipped with an upper pressure roller. The upper pressure roller can move down with the lifting seat to clamp the front end of the bag body together with the lower pressure roller set on the front end of the knife holder on the support seat.

[0065] The waste material hot cutting assembly includes a support base mounted on a frame. The support base is adjacent to the folding mechanism of the frame used to fold the bag body. After the bag head is folded by a rotatable folding plate (the rest of the bag making machine is not described in detail here), the bag transfer assembly can drag the bag body. At this time, the bag head will pass through an opening groove formed on the side of the support base and enter the support base. The hot knife set on the support base can move downward to cut the front end of the bag body.

[0066] Furthermore, the left and right inner walls of the aforementioned support base are respectively fixed with slide rails, and a lifting base is mounted on the slide rails with sliders on both sides of itself. At the same time, a rotatable shaft is horizontally mounted on the top of the support base, and a cam fixed eccentrically on the shaft is rotatably sleeved on its outer side. The connecting arm at the bottom of the cam sleeve is hinged to the connecting rod with a hinge joint on the top of the lifting base through a first fisheye buckle. When the shaft is driven to rotate by a motor, the movable cooperation between the cam and the cam sleeve allows the lifting base to move up and down in the support base accordingly. The hot knife, which is mounted on the bottom of the lifting base with another connecting rod, can thus move closer to or away from the bag body to perform the corresponding cutting action.

[0067] Specifically, the support base has a knife holder fixed on its bottom rear side corresponding to the hot knife. The top surface of the knife holder is nearly flush with the opening groove on the side of the support base. When the bag is dragged to the support base by the bag transfer assembly, most of it is placed on the tray of the frame, and the head to be cut is located on the knife holder.

[0068] Furthermore, if the bag head is not secured during cutting, it may shift, affecting the cutting effect. Therefore, in this design, the support base is also equipped with a set of pressure rollers to clamp the front end of the bag. The set of pressure rollers includes an upper pressure roller and a lower pressure roller. The lower pressure roller is directly installed on the lower side of the support base and located in front of the blade holder. The upper pressure roller has guide rods connected to both ends of itself via second fisheye buckles. The guide rods slide into the guide sleeves fixed on the front mounting plate of the lifting base. The retaining rings installed at the top of the guide rods can abut against the guide sleeves to prevent the upper pressure roller from detaching from the lifting base. When the lifting base moves the hot blade downward, the upper pressure roller can also move downward synchronously, thereby clamping the bag head with the lower pressure roller through several pressure rollers with roughened surfaces. After the hot blade completes the cutting action, the lower pressure roller can rotate under the drive of the drive element (not shown in the figure) to discharge the cut waste material outward.

[0069] In the above scheme, the lower pressure roller can rotate to send the cut-off portion of the bag outward. The upper pressure roller is connected to guide rods at both ends by second fisheye buckles. The guide rods slide into the guide sleeves fixed on the front mounting plate of the lifting seat. The top of the guide rod has a retaining ring that can abut against the guide sleeve. The upper pressure roller is equipped with several pressure rollers with rough surfaces. The upper pressure roller and the lower pressure roller together clamp the front end of the bag. An opening groove is formed on one side of the support seat, through which the front end of the bag to be cut can pass.

[0070] In the above solution, the cost integration component includes a storage platform and a tipping bracket. The tipping bracket is located at the end of the frame, and a motor drives the tipping bracket to flip up and down. A bag opening smoothing component is provided on one side of the inner film hot-film assembly. The smoothing cylinder of the bag opening smoothing component drives the two transverse brushing parts to move laterally. The bag transfer assembly has two sets of synchronous belts that fit together. The two sets of synchronous belts can jointly clamp the tail of the bag to drag the bag. The bag transfer assembly also includes a pressure block on the frame. When the tail of the bag is clamped between the two sets of synchronous belts, the synchronous belts and the pressure block can abut against each other.

[0071] Specifically, since the two sets of synchronous belts need to clamp the bag in order to drag it, a pressure block seat with several pressure blocks is also set on the frame. The pressure block seat is located in the upper set of synchronous belts, and there is a certain gap between the pressure block and the lower side of the synchronous belt. When the bag is clamped between the two sets of synchronous belts, the upper synchronous belt will move upward slightly, thereby abutting against the pressure block. The pressure block can thus restrict the synchronous belt from clamping the bag in the opposite direction, so that the bag can be dragged.

[0072] The operation of this design is roughly as follows: First, the bag is dragged from the previous station to the lower suction seat; second, the upper and lower suction seats respectively suction the two sides of the bag to open the head of the bag; third, the support claw hooks the opened head of the bag, and the folding plate rotates to form a fold at the head of the bag; next, the support claw releases the head of the bag, the upper and lower suction seats release their suction on the bag, and the pressure plate presses the bag downward to shape it; finally, the bag is dragged to the next station.

[0073] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An automated manufacturing device for woven bags with inward-folding valve openings, comprising: The machine includes a frame, an outer woven bag feeding assembly, an inner film bag feeding assembly, an inner film hot-pressing assembly, a bag transfer assembly, a sewing machine, a valve inward folding assembly, a waste material hot-cutting assembly, and a cost integration assembly. The frame is characterized by having an outer woven bag feeding assembly, an inner film bag feeding assembly, an inner film hot-pressing assembly, a valve inward folding assembly, and a waste material hot-cutting assembly arranged sequentially on one side of its front end. The cost integration assembly is located at the end of the frame. A bag transfer assembly is mounted on the frame. A first sewing machine located at the end of the bag is mounted on the frame, and a second sewing machine located at the front of the bag is mounted on the frame. The outer woven bag feeding assembly has a hot / cold knife switching assembly at its outlet port, and the inner film bag feeding assembly has a heat-sealing and cutting assembly at its outlet port.

2. The automated manufacturing device for woven bags with inward-folded valve openings according to claim 1, characterized in that: The outer woven bag feeding assembly consists of a tension roller group, a transition roller group, and an outer woven bag substrate storage roller. The outer woven bag substrate storage roller is mounted on both sides of a lifting bracket, which is driven to swing up and down by a cylinder. A tension roller group and a transition roller group are provided between the outer woven bag substrate storage roller and the discharge port of the outer woven bag feeding assembly. The inner film bag feeding assembly consists of a tension roller group, a transition roller group, and an inner film bag substrate storage roller. The inner film bag substrate storage roller is mounted on both sides of a lifting bracket, which is driven to swing up and down by a cylinder. A transition roller group is provided between the inner film bag substrate storage roller and the discharge port of the outer woven bag feeding assembly.

3. An automated manufacturing device for woven bags with inward-folded valve openings according to claim 1 or 2, characterized in that: The hot and cold knife switching assembly includes a bracket with a hot knife assembly, a cold knife assembly, and a feeding assembly. The hot knife assembly and the cold knife assembly can cut the strip-shaped bag blank fed by the feeding assembly into the bag body by hot cutting and cold cutting. The frame is slidably provided with a lifting seat that is driven to move up and down by a lead screw. The movement of the lifting seat can match the hot knife assembly or cold knife assembly installed on itself with the bag feeding assembly fixed on the bracket. After the feeding assembly feeds the bag blank into the hot knife assembly or cold knife assembly for cutting by the upper and lower feeding pressure rollers and feeding rollers, several air blowing pipes of the feeding assembly can blow the bag body outward.

4. The automated manufacturing device for woven bags with inward folding valve openings according to claim 3, characterized in that: The hot knife assembly and cold knife assembly each have a hot knife seat and a cold knife seat fixed on the lifting base. When the lifting base moves to match the hot knife seat or cold knife seat with the feeding assembly, the feeding assembly can transport the bag blank above it. The hot knife and cold knife of the hot knife assembly and cold knife assembly can be driven by the upper cam assembly and lower cam assembly to approach the bag blank for cutting. The hot knife and cold knife of the hot knife assembly and cold knife assembly are each slidably mounted on the lifting base via a slider and a slide rail. When the upper cam assembly and lower cam assembly drive the hot knife and cold knife to slide linearly, they can move closer to or further away from the hot knife seat and cold knife seat respectively. The upper cam assembly and lower cam assembly each have a rotatable shaft. The cam eccentrically fixed on the shaft is fitted with a cam sleeve that rotates on its own. The wheel assembly and the lower cam assembly are connected to the hot knife and the cold knife respectively through the connecting arms of their respective cam sleeves, thereby driving them to slide linearly in the lifting seat. The hot knife assembly also includes a hot knife crossbeam, which can be driven by the upper cam assembly to slide linearly with the help of a slider and a slide rail. The hot knife assembly also includes a de-drying roller with several de-drying wheels. The de-drying roller can be driven to rotate by the pushing element provided on the hot knife crossbeam, so that the de-drying wheels can rub open the hot-cut and bonded ends of the bag blank. The feeding roller, driven to rotate by the feeding roller motor, has several slots formed on itself. The air blowing pipe for blowing out the bag body is laid at the slots, and its air inlet end is connected to the hollow pipe of the external air source provided on the bracket. The feeding assembly is also provided with a feeding support plate behind the feeding pressure roller and the feeding roller.

5. An automated manufacturing device for woven bags with inward-folded valve openings according to claim 1 or 2, characterized in that: The inner membrane hot-film assembly has a horizontally fixed rotating shaft on its support base. A drive motor rotates the shaft. The adsorption opening crossbar is connected to the cam sleeve on the outside of the cam. The support base is equipped with a front-to-back displacement cylinder, which drives the heat-sealing base to move back and forth. The heat-sealing base is equipped with a lateral displacement cylinder. The push rods of the two sets of lateral displacement cylinders are connected to the bag opening heat-sealing blocks on the left and right sides. The adsorption opening crossbar is connected to the exhaust pump. The support base has slide rails on both sides inside. The sliders on both sides of the adsorption opening crossbar move up and down along the slide rails. The cam sleeve is connected to the top of the adsorption opening crossbar through a connecting rod. The bottom of the adsorption opening crossbar has several through holes, which are connected to the air outlet at the top. The air outlet is connected to the exhaust pump through an air outlet pipe. The support base is located on one side of the bag transfer assembly platform of the frame. The support base is equipped with an outer shell baffle. The bag opening heat-sealing block is set on the mounting plate. The push rods of the two sets of lateral displacement cylinders are respectively connected to the mounting plate. The heat-sealing base is equipped with double lateral guide rails. The lateral slider at the bottom of the mounting plate moves left and right along the double lateral guide rails.

6. An automated manufacturing device for woven bags with inward-folded valve openings according to claim 1 or 2, characterized in that: The valve port inward folding assembly has a double slide rail on its support base. A forward and backward displacement cylinder mounted on the support base intersects with the bottom of the heat-sealing base. The slider of the heat-sealing base moves forward and backward along the double slide rail. A lower adsorption plate is located below the adsorption opening crossbar. The through-hole of the lower adsorption plate connects to a vacuum pump. A lifting drive device is located below the lower adsorption plate, driving the lower adsorption plate to move up and down. The assembly includes an upper adsorption seat and a lower adsorption seat that can be positioned relatively close to or far apart on the frame. Each upper and lower adsorption seat is fixed with a vertical base. Support claws are hinged to the vertical bases via shafts. The support claw cylinders on the vertical bases are hinged to the shafts via connecting arms. The upper and lower adsorption seats move relative to each other. At the same time, the support claw cylinder can drive the support claw to hook or release the bag head. When the bag head is adsorbed and opened, the folding plate on one side can rotate to fold it open. Behind the upper adsorption seat is a pressure plate that is driven to rise and fall by the pressure plate cylinder. When the bag head is folded open by the folding plate, the pressure plate can press down on the bag head to shape it. The upper adsorption seat and the lower adsorption seat are each driven to rise and fall by the lifting cylinder provided on the frame. The frame is also fixed with a guide sleeve. The upper adsorption seat and the lower adsorption seat have guide rods that are slidably connected to the corresponding guide sleeves. The upper adsorption seat and the lower adsorption seat, which are respectively connected to the air duct, have a number of adsorption holes on the side facing the bag. The two achieve adsorption and opening of the bag head through the adsorption holes.

7. The automated manufacturing device for woven bags with inward folding valve openings according to claim 6, characterized in that: The folding plate has one end fixed to the folding plate motor, and its movable end can be rotated through the folding plate motor to pass between the upper and lower adsorption seats to fold the opening of the bag head. The folding plate is placed on the support plate of the frame, and the joint formed at its bottom passes through the support plate and is connected to the folding plate motor.

8. An automated manufacturing device for woven bags with inward-folded valve openings according to claim 1 or 2, characterized in that: The waste material hot cutting assembly includes a support base mounted on a frame. The support base has a hot knife for cutting. A rotating shaft with several cams fixed on it is horizontally arranged on the support base. The hot knife is connected to a cam sleeve sleeved on the outside of the cam. When the bag body after folding is dragged to the knife holder on the support base by the bag transfer assembly, the rotating shaft can be driven by a motor to rotate, so that the hot knife moves down with the cooperation of the cam and the cam sleeve to cut the front end of the bag body. The support base is slidably equipped with a lifting seat through a slide rail and a slider. The lifting seat is connected to the cam sleeve and the hot knife by connecting rods set at its upper and lower ends, respectively. The cam sleeve is hinged to the connecting rod with a hinge joint at the top of the lifting seat through a connecting arm with a first fisheye buckle at its bottom. The lifting seat is also equipped with an upper pressure roller. The upper pressure roller can move down with the lifting seat to clamp the front end of the bag body together with the lower pressure roller set at the front end of the knife holder on the support base.

9. The automated manufacturing device for woven bags with inward folding valve openings according to claim 8, characterized in that: The lower pressure roller can rotate to send the cut-off portion of the bag outward. The upper pressure roller has guide rods connected to both ends by second fisheye buckles. The guide rods slide into the guide sleeves fixed on the front mounting plate of the lifting seat. The top of the guide rod has a retaining ring that can abut against the guide sleeve. The upper pressure roller is equipped with several pressure rollers with rough surfaces. The upper pressure roller and the lower pressure roller together clamp the front end of the bag. An opening groove is formed on one side of the support seat. The front end of the bag to be cut can pass through the opening groove.

10. An automated manufacturing device for woven bags with inward-folded valve openings according to claim 1, characterized in that: The cost integration component includes a storage platform and a tipping bracket. The tipping bracket is located at the end of the frame and is driven by a motor to flip up and down. A bag opening smoothing component is provided on one side of the inner film hot-film assembly. The smoothing cylinder of the bag opening smoothing component drives the two transverse brushing parts to move laterally. The bag transfer assembly has two sets of synchronous belts that fit together. The two sets of synchronous belts can clamp the tail of the bag to drag the bag. The bag transfer assembly also includes a pressure block on the frame. When the tail of the bag is clamped between the two sets of synchronous belts, the synchronous belts and the pressure block can abut against each other.

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