Container bag production equipment

Abstract

The invention relates to the technical field of flexible freight bag production, and discloses flexible freight bag production equipment which comprises a supporting frame, a winding mechanism, a tension adjusting mechanism and a driving mechanism, the winding mechanism comprises an air expansion shaft, a plurality of adjusting blocks, a winding shaft and an adjusting assembly, and the air expansion shaft is rotationally connected to the supporting frame through the driving mechanism; the multiple adjusting blocks are fixedly connected to the surface of the air expansion shaft, the air expansion shaft is sleeved with the winding shaft, multiple through grooves are evenly formed in the periphery of the winding shaft, the adjusting assembly is used for pressing and limiting cloth, and the tension adjusting mechanism is used for adjusting the tension of the cloth in the winding process. According to the cloth feeding device, in the releasing process of the cloth on the winding shaft, the tension changed due to cloth releasing can be continuously adjusted and balanced, and therefore the situation that due to uneven cloth feeding, the cutting length error is increased, and the specification consistency of products is affected is effectively prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of flexible intermediate bulk container (FIBC) production, and particularly to a production device for FIBCs. Background Art

[0002] The full name of a flexible intermediate bulk container (FIBC) is a flexible bulk bag, also known as a big bag or ton bag. It is a soft and foldable packaging container, a large-capacity transport bag made of foldable coated fabric, resin-processed fabric, and other soft materials. Generally, it is mainly made of polypropylene or polyethylene. It is formed by extrusion into a film, cutting, drawing, then knitting, cutting, and sewing. During the manufacturing process, the fabric needs to be wound and released to facilitate subsequent operations.

[0003] Chinese Patent Publication No. CN212097634U discloses a hemming device for the production of ton bag FIBCs, including a bracket. The front and rear inner walls of the bracket are respectively fixedly installed with U-shaped plates with opposite openings. The upper parts of the opposite surfaces of the U-shaped plates are fixedly installed with L-shaped plates. There are two longitudinally arranged rotating shafts inside the bracket. Belt pulleys are respectively fixedly installed on the outer peripheries of the rotating shafts, and all the belt pulleys are located outside the bracket. A motor is fixedly installed on the rear of the bracket, and the output shaft of the motor is fixedly connected to the other end of one of the rotating shafts. The two belt pulleys are connected by a belt. The utility model can move the pressing roller up and down through an adjusting device, thereby adjusting the pressing force between the conveying roller and the pressing roller, avoiding mutual wear between the conveying roller and the pressing roller and the FIBC, resulting in loosening. By adjusting the pressing roller downward, the conveying roller and the pressing roller can be mutually pressed to improve the hemming effect.

[0004] In the related art's FIBC production equipment, after the fabric for making the FIBC is wound up, the wound-up fabric needs to be released, cut, and sewn into an FIBC. During the process of the winding shaft rotating to release the fabric, as the coil diameter becomes smaller, the resistance to the fabric release will gradually decrease, the tension of the fabric will drop, and the fabric on the winding shaft may become loose due to the tension problem, resulting in uneven fabric feeding, increasing the cutting length error, affecting the dimensional accuracy and specification consistency of the FIBC, and may also cause the fabric to shift during the cutting process, resulting in uneven cutting edges, affecting the appearance of the FIBC and subsequent sewing.

[0005] Therefore, it is necessary to provide a production device for FIBCs to solve the above technical problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a production device for FIBCs to solve the existing problems in the above background art.

[0007] To achieve the above object, the present invention provides the following technical solution: A bulk bag production device, including a support frame, a winding mechanism, a tension adjusting mechanism, and a driving mechanism. The winding mechanism includes an air shaft, a plurality of adjusting blocks, a winding shaft, and an adjusting component. The air shaft is rotatably connected to the support frame through the driving mechanism. A plurality of the adjusting blocks are uniformly fixedly connected to the surface of the air shaft. The winding shaft is sleeved on the outer periphery of the air shaft. A plurality of through grooves are uniformly formed on the outer periphery of the winding shaft, and the sizes and positions of the plurality of through grooves correspond to those of the plurality of adjusting blocks. The adjusting component is used to press and limit the fabric during the release of the winding shaft. The tension adjusting mechanism is used to adjust the tension of the fabric during winding. The driving mechanism is used to drive the rotation of the winding shaft to wind the fabric.

[0008] As a further solution of the present invention, connection bearings are installed at both ends of the air shaft, and the connection bearings are located inside the side walls at both ends of the support frame. A connecting plate is fixedly installed on the outer periphery of the connection bearing. The adjusting component includes a mounting block, a first arc plate, a second arc plate, a plurality of compression springs, and a set of arc guide blocks. A first slide rail is fixedly installed on the inner wall of the connecting plate. A slider is slidably connected to the first slide rail. Both ends of the mounting block are fixedly connected to the slider. The outer top of the first arc plate is fixedly connected to the mounting block. One ends of the plurality of compression springs are uniformly fixedly installed on the inner top of the first arc plate. The outer top of the second arc plate is fixedly connected to the other ends of the plurality of compression springs. A set of the arc guide blocks are fixedly installed at both ends of the second arc plate, and the guiding ends of the arc guide blocks are arranged close to both ends of the winding shaft.

[0009] As a further solution of the present invention, an arc guide groove is formed at the guiding end of the arc guide block, and an arc limiting block is arranged at the top of the arc guide groove.

[0010] As a further aspect of the present invention, the tension adjusting mechanism includes a first traction roller, a second traction roller, a first flattening roller, a second flattening roller, two sets of transmission rods and a power assembly. The bottom of the support frame is rotatably connected to a first support rod and a second support rod through the power assembly. The first support rod and the second support rod are arranged close to each other, and both ends of the first support rod penetrate through the side walls at both ends of the support frame. The first support rod and the second support rod are located in front of the take-up reel. One set of the transmission rods is rotatably connected to both ends of the first support rod, and the other set of the transmission rods is rotatably connected to both ends of the second support rod. The first traction roller is fixedly installed on the top of the set of transmission rods away from the take-up reel, and the second traction roller is fixedly installed on the set of transmission rods close to the take-up reel. Connecting grooves are formed on the inner walls on both sides of the support frame, and a first electric push rod is fixedly installed in the connecting grooves. The first flattening roller is fixedly installed at the output end of the first electric push rod. Both ends of the second flattening roller are fixedly installed on the inner walls on both sides of the support frame, and the first flattening roller and the second flattening roller are arranged close to each other. The power assembly is used to drive the first support rod and the second support rod to rotate.

[0011] As a further aspect of the present invention, the power assembly includes a set of driving members and a set of rockers. One set of the driving members is respectively fixedly installed outside the side walls at both ends of the support frame, and the other set of the driving members is respectively fixedly installed inside the side walls at both ends of the support frame. The set of driving members located inside the side walls at both ends of the support frame is arranged close to the second traction roller. Among them, the output ends of one set of the driving members are respectively fixedly connected to a set of transmission members below the second traction roller. One end of each of the set of rockers is respectively fixedly connected to both ends of the first support rod, and the other end of each of the set of rockers is respectively fixedly connected to the output ends of the set of driving members located outside the side walls at both ends of the support frame.

[0012] As a further aspect of the present invention, the driving mechanism includes a driving motor, a driving gear, a driven gear, a transmission belt and a speed reduction assembly. The driving motor is fixedly installed inside the side wall at one end of the support frame, and the driving motor is located behind the take-up reel. The driving gear is fixedly connected to the output end of the driving motor. Both ends of the air shaft penetrate through the side walls at both ends of the support frame. The driven gear is fixedly installed at both ends of the air shaft, and the driven gear is located outside the side walls at both ends of the support frame. The transmission belt is in transmission connection with the surfaces of the driving wheel and the driven wheel. The speed reduction assembly is used to slow down the rotation speed of the air shaft.

[0013] As a further solution of the present invention, the reduction assembly includes a reduction motor, a rotating shaft, a group of rotating gears, a group of belts and a group of rotating discs. The reduction motor is fixedly mounted on the outside of the side wall of the support frame at one end away from the driving motor, the output end of the reduction motor passes through the side wall of the support frame and is located at the bottom inner side of the support frame, one end of the rotating shaft is fixedly connected to the output end of the reduction motor, and the other end of the rotating shaft is rotatably connected to a side wall of the support frame away from the reduction motor, a group of rotating gears are respectively fixedly mounted on both ends of the rotating shaft, a group of rotating discs are respectively fixedly mounted on both ends of the inflatable shaft, and a group of rotating discs are located between the support frame and the rotating bearing, and a group of belts are respectively transmission-connected to the rotating gears and the surfaces of the rotating discs.

[0014] As a further solution of the present invention, a traction assembly is provided on the support frame, and the traction assembly is located at the rear end of the inflatable shaft, the traction assembly includes a first rotating roller, a second rotating roller and a third rotating roller, the first rotating roller is rotatably connected between the side walls at both ends of the support frame, the first rotating roller is located below the winding shaft and is arranged close to the winding shaft, the second rotating roller is rotatably connected between the side walls at both ends of the support frame, the second rotating roller is located obliquely above the first rotating roller and is arranged close to the first rotating roller, the third rotating roller is rotatably connected between the side walls at both ends of the support frame, and the third rotating roller is located at the top of the side walls at both ends of the support frame.

[0015] As a further solution of the present invention, a cutting mechanism is also provided on the support frame, and the cutting mechanism includes a mounting plate, a plurality of cutting knives, and a second electric push rod. A support plate is fixedly installed between the side walls at both ends of the support frame, and the support plate is located obliquely above the second rotating roller. A second slide rail is provided on the support plate, and the bottom of the mounting plate is slidably connected to the second slide rail. The plurality of cutting knives are evenly fixedly installed on the surface of the mounting plate, the second electric push rod is fixedly installed on the inner wall of the side wall at one end of the support frame, and the output end of the second electric push rod is fixedly connected to one end of the mounting plate.

[0016] As a further solution of the present invention, the driving member is specifically a standard cylinder, and the reduction motor is specifically an RV series aluminum alloy worm gear reducer.

[0017] In the present invention, by arranging an air shaft, a plurality of adjusting blocks and a winding shaft to cooperate with each other, during the process of releasing the fabric on the winding shaft, the air shaft is slowly inflated to continuously adjust and balance the tension changed due to the release of the fabric, thereby effectively preventing uneven feeding of the fabric, increasing the cutting length error, affecting the dimensional accuracy and specification consistency of the product, and generating waste. Further, an adjusting assembly is provided to limit the loose position of the fabric, thereby effectively preventing overlapping misalignment and wrinkles from occurring during the fabric release process, avoiding unsmooth feeding of the fabric, resulting in the cutting blade being stuck or damaged, or even the fabric being pulled and torn. Moreover, during the release process, the arc-shaped guiding block of the adjusting assembly will pull the fabric deviating from the release line of the winding shaft back to the correct release route through the arc-shaped guiding groove and the arc-shaped limiting block, thereby effectively preventing the cutting position of the fabric from shifting due to abnormal movement of the fabric, resulting in uneven cutting edges. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the drawings and embodiments.

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a schematic diagram of the installation structure of the power assembly of the present invention;

[0021] Figure 3 is a schematic diagram of the overall structure of the present invention from another perspective;

[0022] Figure 4 is a schematic diagram of the structure of the cutting mechanism of the present invention;

[0023] Figure 5 is a schematic diagram of the structure of the driving mechanism of the present invention;

[0024] Figure 6 is of the present invention Figure 5 magnified schematic diagram of part A;

[0025] Figure 7 is a schematic diagram of the structure of the adjusting assembly of the present invention;

[0026] Figure 8 is a schematic diagram of the external structure of the winding shaft of the present invention;

[0027] Figure 9 is a schematic diagram of the internal structure of the winding shaft of the present invention;

[0028] Figure 10 is a schematic diagram of the structure of the arc-shaped guiding block of the present invention.

[0029] In the figure: 1, support frame; 2, rewinding mechanism; 21, air shaft; 22, adjusting block; 23, winding shaft; 24, adjusting component; 241, mounting block; 242, first arc plate; 243, second arc plate; 244, compression spring; 245, arc guide block; 3, through slot; 4, connecting bearing; 5, connecting plate; 6, first slide rail; 7, slider; 8, arc guide slot; 9, arc limit block; 10, tension adjusting mechanism; 101, first traction roller; 102, second traction roller; 103, first flattening roller; 104, second flattening roller; 105, transmission rod; 106, power component; 1061, driving part; 1062, rocker; 11, connecting slot; 12, first electric push rod; 13, driving mechanism; 131, driving motor; 132, driving gear; 133, driven gear; 134, transmission belt; 135, reduction component; 1351, reduction motor; 1352, rotating shaft; 1353, rotating gear; 1354, belt; 1355, rotating wheel disc; 14, traction component; 141, first rotating roller; 142, second rotating roller; 143, third rotating roller; 15, cutting mechanism; 151, mounting plate; 152, cutting knife; 153, second electric push rod; 16, support plate; 17, second slide rail; 18, first support rod; 19, second support rod. Detailed implementation mode

[0030] Embodiment 1

[0031] As Figures 1 - 2As shown in the figure, a bulk bag production device, the tension adjusting mechanism 10 includes a first traction roller 101, a second traction roller 102, a first flattening roller 103, a second flattening roller 104, two sets of transmission rods 105 and a power assembly 106. The bottom of the support frame 1 is rotationally connected to a first support rod 18 and a second support rod 19 through the power assembly 106. The first support rod 18 and the second support rod 19 are arranged close to each other, and both ends of the first support rod 18 penetrate through the side walls at both ends of the support frame 1. The first support rod 18 and the second support rod 19 are located in front of the take-up reel 23. One set of the transmission rods 105 is rotationally connected to both ends of the first support rod 18, and the other set of the transmission rods 105 is rotationally connected to both ends of the second support rod 19. The first traction roller 101 is fixedly installed on the top of the set of transmission rods 105 far from the take-up reel 23, and the second traction roller 102 is fixedly installed on the set of transmission rods 105 close to the take-up reel 23. Connecting grooves 11 are formed on the inner walls on both sides of the support frame 1, and first electric push rods 12 are fixedly installed in the connecting grooves 11. The first flattening roller 103 is fixedly installed at the output end of the first electric push rod 12. Both ends of the second flattening roller 104 are fixedly installed on the inner walls on both sides of the support frame 1, and the first flattening roller 103 and the second flattening roller 104 are arranged close to each other. The power assembly 106 is used to drive the first support rod 18 and the second support rod 19 to rotate;

[0032] The power assembly 106 includes a set of driving members 1061 and a set of rocker arms 1062. One set of the driving members 1061 are respectively fixedly installed outside the side walls at both ends of the support frame 1, and the other set of the driving members 1061 are respectively fixedly installed inside the side walls at both ends of the support frame 1. The set of driving members 1061 located inside the side walls at both ends of the support frame 1 are arranged close to the second traction roller 102. Among them, the output ends of one set of the driving members 1061 are respectively fixedly connected to a set of transmission members below the second traction roller 102. One end of each of the set of rocker arms 1062 is respectively fixedly connected to both ends of the first support rod, and the other end of each of the set of rocker arms 1062 is respectively fixedly connected to the output ends of the set of driving members 1061 located outside the side walls at both ends of the support frame 1.

[0033] During use, the staff first adjust the positions and tilting angles of the first traction roller 101 and the second traction roller 102 according to the material and thickness of the fabric used to make the flexible intermediate bulk container. First, start the driving member 1061, so that the output ends of a group of driving members 1061 located on the outer wall of the support frame 1 extend or shorten to an appropriate length, driving a group of rocker arms 1062 connected thereto to rotate, thereby causing the first support rod 18 to rotate. At this time, a group of transmission members located on the first support rod 18 will drive the first traction roller 101 at the top to rotate according to the rotation angle of the first support rod 18, thereby changing the tilting angle and height of the first traction roller 101 and the distance from the winding shaft 23. Similarly, controlling the output end of the driving member 1061 located on the inner wall of the support frame 1 to extend or shorten to an appropriate length drives a group of rocker arms 1062 connected thereto to rotate, thereby driving the rotation of the second traction roller 102 at the top of the group of rocker arms 1062, thereby changing the tilting angle and height of the second traction roller 102 and the distance from the winding shaft 23. Subsequently, the flexible intermediate bulk container fabric to be wound is placed on the first traction roller 101. At this time, pull one end of the fabric located on the first traction roller 101 through the gap between the first flattening roller 103 and the second flattening roller 104, and place it above the second traction roller 102 and the winding shaft 23 to complete the work before winding the fabric.

[0034] The effect of such a setting is that before using the device to wind the fabric, the tilting angle of the traction roller and the distance from the winding shaft 23 can be adjusted according to the characteristics, thickness and material of the fabric itself, so as to supplement or reduce the insufficient or excessive tension caused by different fabric material thicknesses, thereby avoiding the problem that the fabric will undergo permanent deformation or even breakage when subjected to excessive tension. At the same time, it also avoids the situation that the fabric is prone to wrinkles during the winding process and the fabric on the winding shaft 23 is loose. In addition, through the compensation and reduction of the tension, the tension adjustment mechanism 10 greatly improves the production efficiency and reduces the production cost at the same time;

[0035] In the process of winding the cloth using the device, as the cloth on the winding shaft 23 increases and the diameter of the winding shaft 23 increases, the driving member 1061 can be started to change the inclination angle and position of the first traction roller 101 and the second traction roller 102 accordingly, so as to maintain the tension balance of the cloth in the winding process, reduce the tension fluctuation in the winding process, and ensure the stability of the cloth in the winding process. The first flattening roller 103 and the second flattening roller 104 will flatten the cloth to be wound up, reduce wrinkles on the surface of the wound cloth, and at the same time, during the process of adjusting the position and inclination angle of the first traction roller 101 and the second traction roller 102, the winding length of the cloth will change, and the output end of the first electric push rod 12 pushes the first flattening roller 103, so that the cloth under the first flattening roller 103 moves downward with it, and the cloth is pulled, which can increase the tension of the cloth, put the cloth in a stretched state, and further reduce the generation of wrinkles.

[0036] Embodiment 2

[0037] Based on the first embodiment, Figures 5 - 6 As shown, the driving mechanism 13 includes a driving motor 131, a driving gear 132, a driven gear 133, a transmission belt 134 and a reduction assembly 135. The driving motor 131 is fixedly mounted inside the side wall at one end of the support frame 1, and the driving motor 131 is located at the rear end of the winding shaft 23. The driving gear 132 is fixedly connected to the output end of the driving motor 131. The two ends of the inflatable shaft 21 pass through the two end side walls of the support frame 1. The driven gear 133 is fixedly mounted on the two ends of the inflatable shaft 21, and the driven gear 133 is located outside the two end side walls of the support frame 1. The transmission belt 134 is transmission-connected to the surfaces of the driving wheel and the driven wheel. The reduction assembly 135 is used to slow down the rotation speed of the inflatable shaft 21.

[0038] When in use, the drive motor 131 is started to rotate the output end of the drive motor 131, driving the driving gear 132 on the output end of the drive motor 131 to rotate, and then the driven gear 133 is rotated through the transmission of the transmission belt 134, driving the inflatable shaft 21 to rotate, so that the winding shaft 23 on the outer periphery of the inflatable shaft 21 starts to rotate at a uniform speed to wind up the cloth.

[0039] like Figures 5 - 6As shown, the deceleration assembly 135 includes a deceleration motor 1351, a rotating shaft 1352, a group of rotating gears 1353, a group of belts 1354 and a group of rotating discs 1355. The deceleration motor 1351 is fixedly mounted on the outside of the side wall of the support frame 1 away from the driving motor 131, and the output end of the deceleration motor 1351 passes through the side wall of the support frame 1 and is located at the inner bottom of the support frame 1. One end of the rotating shaft 1352 is fixedly connected to the output end of the deceleration motor 1351, and the other end of the rotating shaft 1352 is rotatably connected to a side wall of the support frame 1 away from the deceleration motor 1351. A group of rotating gears 1353 are respectively fixedly mounted on both ends of the rotating shaft 1352, and a group of rotating discs 1355 are respectively fixedly mounted on both ends of the inflatable shaft 21, and a group of rotating discs 1355 are located between the support frame 1 and the rotating shaft 1352 bearing, and a group of belts 1354 are respectively transmission-connected to the rotating gear 1353 and the surface of the rotating disc 1355.

[0040] When in use, the reduction motor 1351 is driven to rotate the output end of the driving motor 131, driving the rotating shaft 1352 to start rotating. At the same time, a group of rotating gears 1353 fixedly installed at both ends of the rotating shaft 1352 will rotate, and then the belt 1354 on the rotating gear 1353 is transmitted to make the rotating wheel 1355 on the inflatable shaft 21 start rotating, thereby adjusting the rotation speed of the winding shaft 23.

[0041] The effect of such a setting is that the rotation speed of the reel 23 can be precisely controlled by the reduction motor 1351 during the process of the reel 23 reeling the cloth, and at the same time, the tension adjustment mechanism 10 can be used to adjust the tension in real time during the cloth reeling stage according to the characteristics of the cloth, thereby achieving more precise control of the tension during the cloth reeling process, thereby ensuring that the cloth is even and flat during the reeling process, reducing defects such as wrinkles and indentations, and thus improving the quality of the produced container bags.

[0042] Embodiment 3

[0043] On the basis of embodiment 1 or 2, Figures 8 - 9 As shown, the winding mechanism 2 includes an inflatable shaft 21, a plurality of adjustment blocks 22, a winding shaft 23 and an adjustment assembly 24. The inflatable shaft 21 is rotatably connected to the support frame 1 through a driving mechanism 13. The plurality of adjustment blocks 22 are evenly fixedly connected to the surface of the inflatable shaft 21. The winding shaft 23 is sleeved on the outer periphery of the inflatable shaft 21. A plurality of through grooves 3 are evenly opened on the outer periphery of the winding shaft 23, and the plurality of through grooves 3 correspond to the size and position of the plurality of adjustment blocks 22.

[0044] During use, when the winding shaft 23 releases the fabric, at this time, according to the release speed of the fabric by the winding shaft 23, the air shaft 21 is gradually inflated, so that the volume of the air shaft 21 gradually increases, so that a plurality of adjusting blocks 22 on the outer periphery of the air shaft 21 pass through a plurality of through grooves 3 on the winding shaft 23, and push and squeeze the inner circle of the fabric wound on the winding shaft 23 outwards, and adjust the tension changed due to the decrease in the diameter of the winding shaft 23 when the fabric is released.

[0045] The effect of such a setting is that the air shaft 21 is slowly inflated to continuously adjust and balance the tension changed due to the release of the fabric, thereby effectively preventing uneven feeding of the fabric, increasing the cutting length error, affecting the dimensional accuracy and specification consistency of the product, and generating waste materials.

[0046] As Figure 7 and Figure 10 shown, further, connecting bearings 4 are installed at both ends of the air shaft 21, and the connecting bearings 4 are located inside the side walls at both ends of the support frame 1. A connecting plate 5 is fixedly installed on the outer periphery of the connecting bearing 4. The adjusting assembly 24 includes a mounting block 241, a first arc plate 242, a second arc plate 243, a plurality of compression springs 244 and a set of arc guide blocks 245. A first slide rail 6 is fixedly installed on the inner wall of the connecting plate 5. A slider 7 is slidably connected to the first slide rail 6. Both ends of the mounting block 241 are fixedly connected to the slider 7. The outer top of the first arc plate 242 is fixedly connected to the mounting block 241. One ends of the plurality of compression springs 244 are uniformly fixedly installed on the inner top of the first arc plate 242. The outer top of the second arc plate 243 is fixedly connected to the other ends of the plurality of compression springs 244. A set of arc guide blocks 245 are fixedly installed at both ends of the second arc plate 243, and the guiding ends of the arc guide blocks 245 are arranged close to both ends of the winding shaft 23;

[0047] An arc guide groove 8 is formed at the guiding end of the arc guide block 245, and an arc limiting block 9 is arranged at the top of the arc guide groove 8.

[0048] During use, when the fabric on the winding shaft 23 is released, first move the slider 7 on the first slide rail 6, so that the movement of the slider 7 drives the second arc plate 243 on the mounting block 241 to abut against the outermost layer of the fabric wound on the winding shaft 23. Stop moving the slider 7 and fix it until the compression spring 244 between the first arc plate 242 and the second arc plate 243 is completely compressed. Subsequently, during the continuous release of the fabric, the diameter of the winding shaft 23 continuously decreases, and the compression spring 244 begins to continuously recover its deformation, thereby pushing the second arc plate 243 to always abut against the outermost layer of the fabric wound on the winding shaft 23, limiting the looseness of the continuously released fabric during the rotation of the winding shaft 23. At the same time, during the continuous release of the fabric, the arc-shaped guide block 245 will pull the fabric deviating from the release route of the winding shaft 23 back to the accurate release route.

[0049] The effect of such a setting is that by limiting the loose position of the fabric, it effectively prevents the occurrence of overlapping misalignment and wrinkles during the fabric release process, avoids the unsmooth feeding of the fabric, resulting in the cutting blade 152 being stuck or damaged, and even causing the fabric to be pulled and torn. The fabric deviating from the release line of the winding shaft 23 is pulled back to the correct release route through the arc-shaped guide groove 8 and the arc-shaped limiting block 9, thereby effectively preventing the cutting position of the fabric from shifting due to abnormal fabric movement, resulting in uneven cutting edges.

[0050] As Figure 3 As shown in the figure, a traction assembly 14 is provided on the support frame 1, and the traction assembly 14 is located at the rear end of the air shaft 21. The traction assembly 14 includes a first rotating roller 141, a second rotating roller 142, and a third rotating roller 143. The first rotating roller 141 is rotatably connected between the side walls at both ends of the support frame 1. The first rotating roller 141 is located below the winding shaft 23 and is disposed close to the winding shaft 23. The second rotating roller 142 is rotatably connected between the side walls at both ends of the support frame 1. The second rotating roller 142 is located obliquely above the first rotating roller 141 and is disposed close to the first rotating roller 141. The third rotating roller 143 is rotatably connected between the side walls at both ends of the support frame 1, and is located at the top of the side walls at both ends of the support frame 1.

[0051] During use, pull the fabric released from the winding shaft 23, pass it above the first rotating roller 141, and then pull it under the second rotating roller 142, and finally place it on the top of the third rotating roller 143. Under the pulling action of the subsequent equipment, the released fabric is stretched to maintain the tension of the fabric and keep the fabric in a taut state, facilitating the subsequent cutting of the fabric.

[0052] As Figure 4As shown, a cutting mechanism 15 is further provided on the support frame 1. The cutting mechanism 15 includes a mounting plate 151, a plurality of cutting knives 152, and a second electric push rod 153. A support plate 16 is fixedly installed between the side walls at both ends of the support frame 1, and the support plate 16 is located obliquely above the second rotating roller 142. A second slide rail 17 is provided on the support plate 16. The bottom of the mounting plate 151 is slidably connected to the second slide rail 17. A plurality of the cutting knives 152 are uniformly fixedly installed on the surface of the mounting plate 151. The second electric push rod 153 is fixedly installed on the inner wall of one side wall of the support frame 1, and the output end of the second electric push rod 153 is fixedly connected to one end of the mounting plate 151.

[0053] During use, according to the length of the fabric to be cut, the second electric push rod 153 is started to make the output end of the second electric push rod 153 extend or shorten, and the mounting plate 151 is pushed along the second slide rail 17 on the support plate 16 to move the mounting plate 151 to a suitable position, so that the plurality of cutting knives 152 on the mounting plate 151 are at the positions where the fabric needs to be cut.

[0054] Working principle: During use, the staff first adjusts and changes the positions and inclination angles of the first traction roller 101 and the second traction roller 102 according to the material and thickness of the fabric to be used for making the shipping bag. First, the driving member 1061 is started to make the output end of a group of driving members 1061 on the outer wall of the support frame 1 extend or shorten to a suitable length, driving a group of rocker arms 1062 connected thereto to rotate, thereby making the first support rod 18 rotate. At this time, a group of transmission members on the first support rod 18 will drive the first traction roller 101 at the top to rotate according to the rotation degree of the first support rod 18, thereby changing the inclination angle, height of the first traction roller 101, and the distance from the winding shaft 23. Similarly, controlling the output end of the driving member 1061 on the inner wall of the support frame 1 to extend or shorten to a suitable length will drive a group of rocker arms 1062 connected thereto to rotate, thereby driving the rotation of the second traction roller 102 at the top of this group of rocker arms 1062, thereby changing the inclination angle, height of the second traction roller 102, and the distance from the winding shaft 23, so as to supplement or reduce the insufficient or excessive tension caused by different fabric material thicknesses, thereby avoiding the problem that the fabric will undergo permanent deformation or even breakage when subjected to excessive tension, and at the same time avoiding the situation that the fabric is prone to wrinkles during the winding process and the fabric on the winding shaft 23 is loose due to too small tension. Subsequently, the shipping bag fabric to be wound is placed on the first traction roller 101. At this time, pull one end of the fabric located on the first traction roller 101 through the gap between the first flattening roller 103 and the second flattening roller 104, and place it above the second traction roller 102 and the winding shaft 23 to complete the work before winding the fabric.

[0055] Subsequently, start the drive motor 131 to rotate the output end of the drive motor 131, driving the driving gear 132 on the output end of the drive motor 131 to rotate. Subsequently, through the transmission of the transmission belt 134, the driven gear 133 rotates, driving the air shaft 21 to rotate, so that the winding shaft 23 on the outer circumference of the air shaft 21 starts to rotate at a constant speed to wind the fabric. During the process of using this device to wind the fabric, as the fabric on the winding shaft 23 continuously increases and the diameter of the winding shaft 23 increases, the driving member 1061 can be started to make corresponding changes to the inclination angle and position of the first traction roller 101 and the second traction roller 102, so as to maintain the tension balance during the winding process of the fabric, reduce the tension fluctuation during the winding process, and improve the stability during the fabric winding process. The first flattening roller 103 and the second flattening roller 104 will flatten the fabric to be wound, reducing the wrinkles on the surface of the wound fabric. At the same time, during the adjustment of the position and inclination angle of the first traction roller 101 and the second traction roller 102, the winding length of the fabric will change. The output end of the first electric push rod 12 pushes the first flattening roller 103, causing the fabric below the first flattening roller 103 to move downward with it, pulling the fabric, which can increase the tension of the fabric and keep the fabric in a stretched state, further reducing the generation of wrinkles;

[0056] When it is necessary to adjust the rotation speed of the winding shaft 23, drive the reduction motor 1351 to rotate the output end of the drive motor 131, driving the rotating shaft 1352 to start rotating. At the same time, a set of rotating gears 1353 fixedly installed at both ends of the rotating shaft 1352 will rotate. Subsequently, through the transmission of the belt 1354 on the rotating gear 1353, the rotating disk 1355 on the air shaft 21 starts to rotate, thereby adjusting the rotation speed of the winding shaft 23. At the same time, in cooperation with the tension adjustment mechanism 10, according to the characteristics of the fabric, the tension is adjusted in real time during the fabric winding stage, realizing more precise control of the tension during the fabric winding process, so as to ensure that the fabric is uniform and flat during the winding process, reducing defects such as wrinkles and indentations, and thus improving the quality of the produced flexible intermediate bulk container;

[0057] During the process of releasing the fabric after winding is completed, first move the slider 7 on the first slide rail 6, so that the movement of the slider 7 drives the second arc plate 243 on the mounting block 241 to abut against the outermost layer of the fabric wound on the winding shaft 23. Stop moving the slider 7 and fix it until the compression spring 244 between the first arc plate 242 and the second arc plate 243 is completely compressed. Subsequently, during the continuous release of the fabric, the diameter of the winding shaft 23 continuously decreases, and the compression spring 244 begins to continuously recover its deformation, thereby pushing the second arc plate 243 to always abut against the outermost layer of the fabric wound on the winding shaft 23 to limit the looseness of the fabric. At the same time, during the continuous release of the fabric, the arc-shaped guide block 245 will pull the fabric deviating from the release route of the winding shaft 23 back to the accurate release route, thus effectively preventing the cutting position of the fabric from shifting due to abnormal movement of the fabric, resulting in uneven cutting edges;

[0058] Pull the fabric released from the winding shaft 23, pass it above the first rotating roller 141, and then pull it under the second rotating roller 142, and finally place it on the top of the third rotating roller 143. Under the pulling action of the subsequent equipment, the released fabric is stretched to maintain the tension of the fabric and keep the fabric in a taut state, facilitating the subsequent cutting of the fabric;

[0059] When cutting the fabric, according to the length of the fabric to be cut, start the second electric push rod 153, so that the output end of the second electric push rod 153 extends or shortens, and push the mounting plate 151 along the second slide rail 17 on the support plate 16 to move the mounting plate 151 to a suitable position, so that the multiple cutting knives 152 on the mounting plate 151 are at the position where the fabric needs to be cut.

Claims

1. A bulk bag production device, characterized in that: It includes a support frame, a winding mechanism, a tension adjusting mechanism and a driving mechanism. The winding mechanism includes an air shaft, a plurality of adjusting blocks, a winding shaft and an adjusting assembly. The air shaft is rotatably connected to the support frame through the driving mechanism. A plurality of the adjusting blocks are uniformly and fixedly connected to the surface of the air shaft. The winding shaft is sleeved on the outer periphery of the air shaft. A plurality of through grooves are uniformly formed in the outer periphery of the winding shaft, and the sizes and positions of the plurality of through grooves correspond to those of the plurality of adjusting blocks. The adjusting assembly is used to press and limit the fabric during the release of the winding shaft. The tension adjusting mechanism is used to adjust the tension of the fabric during winding. The driving mechanism is used to drive the rotation of the winding shaft to wind the fabric.

2. The bulk bag production equipment according to claim 1, characterized in that: Connection bearings are installed at both ends of the air shaft, and the connection bearings are located inside the side walls at both ends of the support frame. A connecting plate is fixedly installed on the outer periphery of the connection bearings. The adjusting assembly includes a mounting block, a first arc plate, a second arc plate, a plurality of compression springs and a set of arc guide blocks. A first slide rail is fixedly installed on the inner wall of the connecting plate. A slider is slidably connected to the first slide rail. Both ends of the mounting block are fixedly connected to the slider. The outer top of the first arc plate is fixedly connected to the mounting block. One ends of the plurality of compression springs are uniformly and fixedly installed on the inner top of the first arc plate. The outer top of the second arc plate is fixedly connected to the other ends of the plurality of compression springs. A set of arc guide blocks are fixedly installed at both ends of the second arc plate, and the guiding ends of the arc guide blocks are arranged close to both ends of the winding shaft.

3. The bulk bag production equipment according to claim 2, characterized in that: An arc guiding groove is formed at the guiding end of the arc guide block, and an arc limiting block is arranged at the top of the arc guiding groove.

4. The bulk bag production equipment according to claim 1, characterized in that: The tension adjusting mechanism includes a first traction roller, a second traction roller, a first flattening roller, a second flattening roller, two sets of transmission rods and a power assembly. A first support rod and a second support rod are rotatably connected to the bottom of the support frame through the power assembly. The first support rod and the second support rod are arranged close to each other, and both ends of the first support rod penetrate through the side walls at both ends of the support frame. The first support rod and the second support rod are located in front of the winding shaft. One set of transmission rods is rotatably connected to both ends of the first support rod, and the other set of transmission rods is rotatably connected to both ends of the second support rod. The first traction roller is fixedly installed on the top of the set of transmission rods far from the winding shaft. The second traction roller is fixedly installed on the set of transmission rods close to the winding shaft. Connecting grooves are formed on the inner walls on both sides of the support frame, and a first electric push rod is fixedly installed in the connecting groove. The first flattening roller is fixedly installed at the output end of the first electric push rod. Both ends of the second flattening roller are fixedly installed on the inner walls on both sides of the support frame, and the first flattening roller and the second flattening roller are arranged close to each other. The power assembly is used to drive the rotation of the first support rod and the second support rod.

5. The bulk bag production equipment according to claim 4, characterized in that: The power assembly includes a set of driving members and a set of rocker arms. One set of the driving members is fixedly installed outside the side walls at both ends of the support frame, and the other set of the driving members is fixedly installed inside the side walls at both ends of the support frame. The set of driving members located inside the side walls at both ends of the support frame is arranged close to the second traction roller. Among them, the output ends of one set of the driving members are respectively fixedly connected to a set of transmission members below the second traction roller. One end of each of the set of rocker arms is fixedly connected to both ends of the first support rod, and the other end of each of the set of rocker arms is fixedly connected to the output ends of the set of driving members located outside the side walls at both ends of the support frame.

6. The bulk bag production equipment according to claim 1, characterized in that: The driving mechanism includes a driving motor, a driving gear, a driven gear, a transmission belt, and a speed reduction assembly. The driving motor is fixedly installed inside the side wall at one end of the support frame, and the driving motor is located at the rear end of the take-up reel. The driving gear is fixedly connected to the output end of the driving motor. Both ends of the air shaft penetrate through the side walls at both ends of the support frame. The driven gear is fixedly installed at both ends of the air shaft, and the driven gear is located outside the side walls at both ends of the support frame. The transmission belt is in transmission connection with the surfaces of the driving wheel and the driven wheel. The speed reduction assembly is used to slow down the rotation speed of the air shaft.

7. The bulk bag production equipment according to claim 6, characterized in that: The speed reduction assembly includes a reduction motor, a rotating shaft, a set of rotating gears, a set of belts, and a set of rotating discs. The reduction motor is fixedly installed outside the side wall at the end of the support frame far from the driving motor. The output end of the reduction motor penetrates through the side wall of the support frame and is located at the bottom inside the support frame. One end of the rotating shaft is fixedly connected to the output end of the reduction motor, and the other end of the rotating shaft is rotatably connected to the side wall of the support frame far from the reduction motor. A set of the rotating gears are respectively fixedly installed at both ends of the rotating shaft. The set of rotating discs are respectively fixedly installed at both ends of the air shaft, and the set of rotating discs are located between the support frame and the rotating bearing. A set of the belts are respectively in transmission connection with the surfaces of the rotating gears and the rotating discs.

8. The bulk bag production equipment according to claim 1, characterized in that: A traction assembly is provided on the support frame, and the traction assembly is located at the rear end of the air shaft. The traction assembly includes a first rotating roller, a second rotating roller, and a third rotating roller. The first rotating roller is rotatably connected between the side walls at both ends of the support frame. The first rotating roller is located below the take-up reel and close to the take-up reel. The second rotating roller is rotatably connected between the side walls at both ends of the support frame. The second rotating roller is located obliquely above the first rotating roller and close to the first rotating roller. The third rotating roller is rotatably connected between the side walls at both ends of the support frame, and the third rotating roller is located at the top of the side walls at both ends of the support frame.

9. The bulk bag production equipment according to claim 8, characterized in that: A cutting mechanism is further arranged on the support frame. The cutting mechanism comprises a mounting plate, a plurality of cutting knives and a second electric push rod. A support plate is fixedly installed between the side walls at both ends of the support frame, and the support plate is located obliquely above the second rotating roller. A second sliding rail is arranged on the support plate. The bottom of the mounting plate is slidably connected to the second sliding rail. The plurality of cutting knives are uniformly and fixedly installed on the surface of the mounting plate. The second electric push rod is fixedly installed on the inner wall of the side wall at one end of the support frame, and the output end of the second electric push rod is fixedly connected to one end of the mounting plate.

Images