Double dynamic film storage mechanism of woven bag soft packaging conveyor

Abstract

The application discloses a double dynamic film storage mechanism of a woven bag soft package conveyor, which is provided with a front storage space and a rear storage linkage roller group, forms a two-part buffer storage state, allows the soft package to be effectively buffered during conveying, effectively separates the front input and the rear output, reduces the influence of the soft package during the input and the output, improves the conveying stability of the soft package input and output, and improves the storage amount of the soft package, effectively avoids frequent start and stop of a front unwinding mechanism, prolongs the service life of equipment, allows the soft package to be more smoothly output outward, reduces long-distance pulling of the soft package, reduces the possibility of damage, reduces the space occupation and cost under the condition of ensuring the storage amount, and is more favorable to popularization and use.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of woven bag processing machinery, in particular to a double dynamic film storage mechanism of a woven bag soft packaging conveyor. BACKGROUND

[0002] The woven bag processing machinery generally includes a circular weaving machine for weaving processing, a composite processing machine for composite processing, a cutting machine for cutting processing, a bagging machine for bagging processing, and a sewing machine for sewing processing. The cutting machine, the bagging machine and the sewing machine generally produce together. Among them, the cutting machine cuts the woven bag into a predetermined length, the bagging machine puts the soft packaging inner film into the cut woven bag, and then conveys it to the sewing machine for sewing and bottom sealing. The whole roll of soft packaging inner film forms a whole through unwinding, conveying, film ironing, bagging and sewing with the woven bag. Therefore, the woven bag soft packaging inner film conveyor generally includes a rack and an unwinding mechanism, a film storage mechanism and a film ironing mechanism arranged on the rack. Then it is connected with the bagging machine. Because the bagging process needs a certain time, the soft packaging inner film will be paused when it is conveyed to the bagging machine. At this time, it is also used for film ironing.

[0003] In the prior art, the applicant participated in the research and development of a Chinese patent with publication number CN118811572B, which discloses a double storage space mechanism of a woven bag soft packaging conveyor. The soft packaging is effectively buffered during conveying by setting two continuous storage spaces and assisting with the sensors therein. The suspension state of the soft packaging in the two storage spaces does not interfere with each other, effectively separating the impact of the soft packaging caused by the front sequence input and the rear sequence output, improving the conveying stability of the soft packaging input and output, and reducing the possibility of damage. This device itself uses double storage space for storage. Compared with the original device, an additional set of storage space corresponding equipment is added, that is, a corresponding conveying mechanism and a blowing fan are configured, thereby increasing the equipment volume and equipment cost. The design starting point of the present application aims to achieve the use effect of the above scheme while reducing the equipment volume and reducing the cost investment of the equipment during improvement. SUMMARY

[0004] The purpose of the present application is to overcome the shortcomings of the prior art, provide a double dynamic film storage mechanism of a woven bag soft packaging conveyor, rely on the front and rear buffer storage of the storage space and the storage linkage roller group, two parts of the dynamic film storage, orderly convey and supplement the soft packaging, improve the stability of the soft packaging conveying and reduce the possibility of damage, and reduce the frequent start and stop of the front sequence unwinding mechanism, prolong the service life of the equipment under the premise of controlling the overall cost.

[0005] The application adopts the following technical scheme: a double dynamic film storage mechanism of a woven bag soft package conveyor, comprising a rack, a U-shaped frame with a storage space as a first film storage position and a storage linkage roller group as a second film storage position are sequentially arranged on the rack; the storage linkage roller group comprises an upper winding roller, a lower winding roller, a fourth driving mechanism and a middle sensor, the upper winding roller and the lower winding roller are arranged at the upper part and the lower part respectively and are controlled to move vertically by the fourth driving mechanism to approach or separate, the soft package winds around the storage film section from the upper winding roller and the lower winding roller, the fourth driving mechanism is arranged to be started synchronously when the soft package is conveyed outward, thereby driving the upper winding roller and the lower winding roller to approach each other to shorten the storage film section, and the soft package at the upper winding roller and the lower winding roller is naturally output; the middle sensor is arranged at the height position between the upper winding roller and the lower winding roller, when the middle sensor detects that the upper winding roller or the lower winding roller reaches the height position, a feedback signal is fed back to drive the fourth driving mechanism to drive the upper winding roller and the lower winding roller to move away from each other to elongate the storage film section, and the soft package is pulled out from the storage space to supplement the storage film section.

[0006] As an improvement, the upper part of the U-shaped frame is open, and an input guide roller and an output guide roller are arranged on the two sides of the opening respectively, a fan blowing towards the storage space is arranged above the opening of the U-shaped frame, a pay-off roller for storing the soft package is arranged in front of the input guide roller, a clamping mechanism for limiting the soft package is arranged behind the storage linkage roller group, the pay-off roller is controlled to start and stop rotating by the first driving mechanism, the input guide roller is controlled to start and stop rotating by the second driving mechanism, the clamping mechanism is controlled to clamp or release the soft package by the third driving mechanism, and the soft package winds around the pay-off roller, the input guide roller, the output guide roller and the storage linkage roller group in sequence and is conveyed outward through the clamping mechanism; the soft package is hung and stored at the U-shaped frame, the side wall of the U-shaped frame is provided with an upper sensor and a lower sensor at two heights respectively, and the upper sensor and the lower sensor are signal-connected with the first driving mechanism, the second driving mechanism and the fan; when the upper sensor does not detect the soft package, a feedback signal is fed back to the first driving mechanism, the second driving mechanism and the fan to start, so that the first driving mechanism and the second driving mechanism pay off the soft package, and the fan blows the soft package to be hung in the U-shaped frame in a U shape; when the soft package is paid off to the lower sensor to detect the soft package, a feedback signal is fed back to the first driving mechanism, the second driving mechanism and the fan to stop.

[0007] As an improvement, the use method of the double dynamic film storage mechanism comprises:

[0008] S1: the storage space and the storage film section initially store two sections of soft packages;

[0009] S2: when the output of the soft package is performed in the subsequent process, the clamping mechanism releases the clamping and limiting of the soft package, and the fourth driving mechanism is started to drive the upper winding roller and the lower winding roller to approach each other to shorten the storage film section, and the soft package at the storage film section is output outward;

[0010] S3: After the soft package output stops, the clamping mechanism re-clamps the soft package, and the fourth driving mechanism stops;

[0011] S4: When the middle sensor detects the upper winding roller and the lower winding roller, the fourth driving mechanism is started by the feedback signal of the middle sensor, and the upper winding roller and the lower winding roller are driven to move away from each other to elongate the storage film section, so as to pull out the soft package in the storage space to supplement the storage film section;

[0012] S5: When the upper sensor does not detect the soft package, the unwinding roller and the input guide roller rotate to unwind the soft package to the storage space, and the fan is started to blow the soft package to hang in a U shape in the storage space.

[0013] S6: When the lower sensor detects the soft package, the unwinding roller, the input guide roller, and the fan stop running, and the soft package in the storage space is fully supplemented.

[0014] As an improvement, step S2 further includes that the shortening rate of the storage film section is consistent with the rate when the soft package is outputted outward in the subsequent process.

[0015] As an improvement, the upper winding roller and the lower winding roller are respectively rotatably arranged on the sliding frames, the sliding frames are arranged on the vertical rails, and the fourth driving mechanism drives the two sliding frames to move close to or away from each other.

[0016] As an improvement, the sliding frames are provided with racks, the fourth driving mechanism is a servo motor, the servo motor is connected to gears outside, the gears are engaged with the two sets of racks for transmission, and when the servo motor is started, the two sets of sliding frames are driven to move close to or away from each other by forward rotation or reverse rotation.

[0017] As an improvement, the fourth driving mechanism is a servo motor, the servo motor is connected to a transmission wheel outside, a transmission belt is wound around the transmission wheel, the transmission belt is arranged in a ring shape, and the two sets of sliding frames are respectively connected to two sides of the ring shape, and when the servo motor is started, the two sets of sliding frames are driven to move close to or away from each other by forward rotation or reverse rotation.

[0018] As an improvement, the second driving mechanism includes a second servo motor, the second servo motor is connected to the input guide roller and drives the input guide roller to rotate when started.

[0019] As an improvement, the second driving mechanism further includes a driven roller and a second air cylinder, the second air cylinder is connected to the driven roller and adjusts the position of the driven roller relative to the input guide roller when started, so as to clamp the soft package when the input guide roller and the driven roller abut, and the driven roller is synchronously driven to rotate when the input guide roller rotates.

[0020] As an improvement, S6 further comprises: when the lower sensor detects the soft package, the lower sensor feedback signal stops the running of the unwinding roller and the input guide roller, and then the second cylinder drives the driven roller to retract, so that the fan blows the soft package between the unwinding roller and the input guide roller to the storage space, and then the second cylinder extends the driven roller to cooperate with the input guide roller to clamp the soft package, and finally the fan stops running, and the soft package in the storage space is replenished.

[0021] As an improvement, the first driving mechanism comprises a first servo motor, a driving roller, a first cylinder and a movable frame. The first servo motor is connected to the driving roller and drives the driving roller to rotate when started. The first servo motor is arranged on the movable frame. The first cylinder is connected to the movable frame and adjusts the position of the movable frame relative to the unwinding roller when started, so as to drive the driving roller against the unwinding roller.

[0022] The present application has the following advantages: by arranging the pre-sequenced storage space and the post-sequenced storage linkage roller group, a two-part buffer storage state is formed, so that the soft package is effectively buffered during conveying, effectively separating the influence of the soft package caused by the pre-sequenced input and post-sequenced output, improving the conveying stability of the soft package input replenishment and output use; the storage space and the storage linkage roller group allow the soft package to be cached more orderly, on the one hand, the storage amount of the soft package is increased, the frequent start and stop of the pre-sequenced unwinding mechanism is effectively avoided, and the service life of the equipment is prolonged; on the other hand, the structure linkage of the storage linkage roller group and the post-sequenced output allows the soft package to be output more smoothly, reduces the long-distance pulling of the soft package, and reduces the possibility of damage; and the storage linkage roller group reduces the occupation of space and the increase of cost under the condition of ensuring the storage amount, which is more conducive to popularization and use. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a side view structure schematic diagram of the first embodiment of the present application.

[0024] Figure 2 It is a side view longitudinal partial sectional structure schematic diagram of the second embodiment of the present application.

[0025] Figure 3 It is a three-dimensional structure schematic diagram of the prior art of the present application.

[0026] In the figure: 1, frame; 2, U-shaped frame; 21, upper sensor; 22, lower sensor; 3, input guide roller; 31, second driving mechanism; 311, second servo motor; 312, driven roller; 313, second air cylinder; 4, output guide roller; 5, fan; 6, unwinding roller; 61, first driving mechanism; 611, first servo motor; 612, driving roller; 613, first air cylinder; 614, movable frame; 7, clamping mechanism; 71, third driving mechanism; 72, support frame; 73, brush; 8, storage linkage roller group; 81, upper winding roller; 82, lower winding roller; 83, fourth driving mechanism; 84, middle sensor; 91, sliding frame; 92, sliding frame; 93, sliding frame; 94, sliding frame; 95, sliding frame; 96, sliding frame. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] As Figure 1 , 2, 3, as a specific embodiment of the double dynamic film storage mechanism of the woven bag soft packaging conveyor of the present application. The embodiment includes a rack 1, a U-shaped frame 2 with a storage space as a first film storage position and a storage linkage roller group 8 as a second film storage position are sequentially arranged on the rack 1; the upper part of the U-shaped frame 2 is open and the input guide roller 3 and the output guide roller 4 are arranged on the two sides of the opening respectively, a fan 5 that blows air towards the storage space is arranged above the opening of the U-shaped frame 2, a pay-off roller 6 for storing soft packaging is arranged in front of the input guide roller 3, a clamping mechanism 7 for limiting the soft packaging is arranged behind the output guide roller 4, the pay-off roller 6 is controlled to start and stop rotating by the first driving mechanism 61, the input guide roller 3 is controlled to start and stop rotating by the second driving mechanism 31, the clamping mechanism 7 is controlled to clamp or relax the soft packaging by the third driving mechanism 71, the soft packaging sequentially passes the pay-off roller 6, the input guide roller 3 and the output guide roller 4, and is conveyed outward through the clamping mechanism 7, the soft packaging is hung and stored at the U-shaped frame 2, the side walls of the U-shaped frame 2 are respectively provided with an upper sensor 21 and a lower sensor 22 at two heights, the upper sensor 21 and the lower sensor 22 are respectively connected to the first driving mechanism 61, the second driving mechanism 31 and the fan 5; when the upper sensor 21 does not detect the soft packaging, feedback signals are sent to the first driving mechanism 61, the second driving mechanism 31 and the fan 5 to start, so that the first driving mechanism 61 and the second driving mechanism 31 pay off the soft packaging, and the fan 5 blows the soft packaging to hang in a U shape in the U-shaped frame 2; when the soft packaging is paid off to the lower sensor 22, feedback signals are sent to the first driving mechanism 61, the second driving mechanism 31 and the fan 5 to stop; the storage linkage roller group 8 is arranged between the output guide roller 4 and the clamping mechanism 7, the storage linkage roller group 8 includes an upper winding roller 81, a lower winding roller 82, a fourth driving mechanism 83 and a middle sensor 84, the upper winding roller 81 and the lower winding roller 82 are arranged at the upper part and the lower part respectively and are controlled to move vertically by the fourth driving mechanism 83 to approach or separate, the soft packaging between the output guide roller 4 and the clamping mechanism 7 passes the upper winding roller 81 and the lower winding roller 82 as a film storage section, the fourth driving mechanism 83 is arranged to start synchronously when the soft packaging is conveyed outward, so as to drive the upper winding roller 81 and the lower winding roller 82 to approach each other to shorten the film storage section, and the soft packaging at the upper winding roller 81 and the lower winding roller 82 is naturally outputted; the middle sensor 84 is arranged at a height position between the upper winding roller 81 and the lower winding roller 82, when the middle sensor 84 detects that the upper winding roller 81 or the lower winding roller 82 reaches the height position, feedback signals are sent to the fourth driving mechanism 83 to drive the upper winding roller 81 and the lower winding roller 82 to move away from each other to elongate the film storage section, and the soft packaging is pulled out from the storage space to supplement the film storage section.

[0029] In use, the staff places the unwinding roll 6 of the stored soft package in the input position, and then the soft package unwinds in turn around the unwinding roll 6, the input guide roll 3 and the output guide roll 4. A certain length of the soft package is pre-hung in the storage space at the U-shaped frame 2 between the input guide roll 3 and the output guide roll 4, and the hanging length is kept between the upper sensor 21 and the lower sensor 22. The soft package that winds around the output guide roll 4 further winds around the upper winding roll 81 and the lower winding roll 82 in turn, passes through the clamping mechanism 7, and then is output towards the output end and is connected to the subsequent mechanism, such as a film heating mechanism, and is pulled by the driving mechanism of the subsequent mechanism to be output.

[0030] As the innovation of the present application, the storage space at the front U-shaped frame 2 and the storage linkage roll group 8 at the rear form two-part buffering; the fan 5 makes the soft package in a U-shaped hanging state in the storage space, and the hung part of the soft package is the first part of the buffering amount, and the soft package in the storage space is sequentially supplemented through the setting of the sensor; the soft package is wound at the upper winding roll 81 and the lower winding roll 82, and the storage film section is formed through the winding length, thereby providing the second part of the buffering amount for the soft package.

[0031] When the driving mechanism of the subsequent mechanism is outputting the soft package, the clamping mechanism 7 is pre-unlocked to the soft package, and the fourth driving mechanism 83 is started to drive the upper winding roller 81 and the lower winding roller 82 to move closer to each other and shorten the storage film section. The soft package is originally kept in a normal winding and tension state on the upper winding roller 81 and the lower winding roller 82. The moving closer action shortens the storage film section and loosens the tension or normal winding state. The loosened state is only a transient state because the driving mechanism of the subsequent mechanism is simultaneously outputting the soft package. The transiently loosened soft package is immediately output. The soft package wound on the upper winding roller 81 and the lower winding roller 82 is output, and the length of this part is always adapted to the shortened storage film section, so that a dynamic soft package winding state is achieved. The soft package output process does not cause hard pulling of the soft package, thereby reducing the possibility of damaging the soft package. After completing the output of a section of soft package, the fourth driving mechanism 83 and the locking clamping mechanism 7 are stopped, and the storage linkage roller group 8 returns to the static state. This soft package output process only outputs the soft package in this part through the action of the storage linkage roller group 8, and the soft package in the front storage space is not affected. When designing the height difference between the upper winding roller 81 and the lower winding roller 82, the height of the equipment itself and the need for several times of film output can be considered. That is, the upper winding roller 81 and the lower winding roller 82 can be designed to shorten the storage film section by two to three times and output the soft package two to three times. When the upper winding roller 81 or the lower winding roller 82 is displaced to be detected by the middle sensor 84, it indicates that the stored soft package is about to be insufficient. After completing the output of the soft package this time, the feedback signal starts the fourth driving mechanism 83 to drive the upper winding roller 81 and the lower winding roller 82 to move away from each other to elongate the storage film section. The moving away process of the upper winding roller 81 and the lower winding roller 82 from each other pulls out the soft package in the storage space to complete the replenishment. After the upper winding roller 81 and the lower winding roller 82 move away from each other and return to the initial position, they are stopped. An additional sensor can be preferably arranged to detect the initial position and stop when the initial position is detected. Because the subsequent process of processing the soft package requires a certain length of time, the moving away process of the upper winding roller 81 and the lower winding roller 82 from each other can be controlled by the fourth driving mechanism 83 to run slowly, thereby slowly pulling the soft package to complete the replenishment and reducing the pulling of the soft package. The output guide roller 4 can be a pair of rollers that lean against each other and rotate synchronously. The soft package passes between the pair of rollers, and the pair of rollers rotates synchronously with the movement of the soft package. The pair of rollers functions as a soft package position limiting effect when the soft package is static.

[0032] When the buffer amount of the storage space is designed, according to the design depth of the specific entity U-shaped frame 2 of the storage space, the soft package in the storage space can be output several times backward. When the soft package is replenished to the storage linkage roller group 8 until the soft package is higher than the upper sensor 21, the upper sensor 21 can no longer detect the soft package, and the upper sensor 21 feeds back a signal to the first driving mechanism 61, the second driving mechanism 31 and the fan 5 to start. The first driving mechanism 61 drives the unwinding roller 6 to rotate, and then the soft package is unwound. The second driving mechanism 31 drives the input guide roller 3 to rotate, so that the soft package is conveyed to the U-shaped frame 2. The fan 5 blows downward, and the soft package is hung in the U-shaped frame 2 in the form of a U. When the soft package is replenished, the clamping mechanism 7 clamps and limits the soft package at the output end, and the soft package at the storage linkage roller group 8 is normally tensioned, so that the soft package in the storage space is better hung downward. When the amount of replenished soft package is sufficient, that is, the soft package is hung to be detected by the lower sensor 22, the lower sensor 22 feeds back a signal to the first driving mechanism 61, the second driving mechanism 31 and the fan 5 to stop.

[0033] The height of the rack 1 is used to set a deeper U-shaped frame 2 structure to ensure a larger storage space. The soft package can be hung in the storage space for an appropriate length to ensure the supply of the subsequent mechanism. At the same time, the upper sensor 21 and the lower sensor 22 are arranged to have a suitable height difference, so that the soft package hung in the storage space can be output several times by the subsequent storage linkage roller group 8. Thus, the first driving mechanism 61, the second driving mechanism 31 and the fan 5 do not have to be started frequently, which reduces the energy consumption of the machine and prolongs the service life of the machine. The storage linkage roller group 8 cooperates with the output of the subsequent soft package to dynamically shorten the storage film section, so that the soft package is pulled out without damage, avoiding the extrusion and wrinkle of the soft package and the damage caused by pulling, and ensuring the product quality. The front and rear parts store the soft package, so that the running and replenishment of the front and rear parts do not affect each other, reducing the hard pulling or extrusion of the soft package. The two storage positions split the soft package replenishment time, avoiding the defect that the soft package replenishment and the soft package output time cannot be performed simultaneously in the single storage position, and improving the efficiency of the equipment use.

[0034] As an improved specific embodiment, the method for using the double dynamic film storage mechanism includes:

[0035] S1: The storage space and the storage film section initially store two sections of soft package;

[0036] S2: When the subsequent process outputs the soft package, the clamping mechanism 7 releases the clamping and limiting of the soft package. At the same time, the fourth driving mechanism 83 starts to drive the upper winding roller 81 and the lower winding roller 82 to approach each other to shorten the storage film section, and the soft package at the storage film section is output outward;

[0037] S3: After the soft package output stops, the clamping mechanism 7 re-clamps the soft package, and the fourth driving mechanism 83 stops;

[0038] S4: When the middle sensor 84 detects the upper winding roller 81 and the lower winding roller 82, the fourth driving mechanism 83 is started by the feedback signal of the middle sensor 84, and then the upper winding roller 81 and the lower winding roller 82 are driven away from each other to elongate the film storage section, so that the soft package in the storage space is pulled out to supplement the film storage section.

[0039] S5: When the upper sensor 21 does not detect the soft package, the unwinding roller 6 and the input guide roller 3 are rotated by the feedback signal of the upper sensor 21 to unwind the soft package to the storage space, and the fan 5 is started to blow the soft package to hang in a U shape in the storage space.

[0040] S6: When the lower sensor 22 detects the soft package, the unwinding roller 6, the input guide roller 3, and the fan 5 are stopped by the feedback signal of the lower sensor 22, and the soft package in the storage space is fully supplemented.

[0041] As shown in Figure 1 , 2 , by using the above-mentioned double dynamic film storage mechanism and the use method, the soft package is orderly transported and cached, and the two storage positions and structures are used to achieve more stable soft package transportation, reducing the pulling or extrusion of the soft package.

[0042] The operator adjusts the double dynamic film storage mechanism to the initial soft package state of S1 to ensure the initial running state of the soft package. The steps of S2 and S3 orderly output and cache the soft package by the subsequent mechanism, the upper winding roller 81 and the lower winding roller 82 are close to each other to shorten the film storage section, the relaxed soft package is pulled out by the subsequent mechanism, avoiding the hard pulling of the soft package, and achieving the purpose of protecting the soft package; and dynamically adjusting the soft package cache at the storage linkage roller group 8 to maintain the orderly switching of transportation and cache. The step of S4 realizes the detection and previous transportation supplement when the soft package at the storage linkage roller group 8 is insufficient, and then completes the supplement of the soft package from the storage space to the storage linkage roller group 8. The step of S5 realizes the detection and previous transportation supplement when the soft package in the storage space is insufficient. The step of S6 realizes the completion of the soft package supplement in the storage space and the recovery of the relative static storage state, and the whole returns to the initial soft package state of S1. Through the reasonable structure start-stop running design of the double dynamic film storage mechanism, the soft package can be supplied for multiple batches of output; the two-part cache reduces the time influence of the front and rear running overlap, and reduces the pulling or extrusion of the soft package.

[0043] As an improved specific embodiment, the step S2 further includes: the shortening rate of the film storage section is consistent with the rate when the subsequent process outputs the soft package outward.

[0044] The above specific embodiment specifically matches the running speed of the fourth driving mechanism 83 and the output speed of the subsequent process, and then keeps the shortening rate of the storage film section and the output rate of the soft package consistent, so that the soft package at the storage linkage roller group 8 can be pulled out in a relaxed state by the subsequent mechanism, avoiding hard pulling or extruding the soft package, and completely avoiding damage to the soft package. The active dynamic change of the length of the storage film section is matched with the running speed of the front and rear processes, which realizes the orderly storage of the soft package and avoids hard pulling and extruding the soft package.

[0045] As an improved embodiment, the upper winding roller 81 and the lower winding roller 82 are respectively rotatably arranged on the sliding frame 91, the sliding frame 91 is arranged on the vertical rail 92, and the fourth driving mechanism 83 drives the two sliding frames 91 to approach or move away from each other.

[0046] As shown in Figure 1 , 2 , the upper winding roller 81 and the lower winding roller 82 are arranged to move vertically by means of the sliding frame 91 on the vertical rail 92. The power of the fourth driving mechanism 83 is connected to the two groups of sliding frames 91, and the stable lifting of the two groups of sliding frames 91 along the vertical rail 92 can be realized, so that the upper winding roller 81 and the lower winding roller 82 can approach or move away from each other. According to the needs, the two groups of sliding frames 91 can share one vertical rail 92, thereby simplifying the components.

[0047] As an improved embodiment, the sliding frame 91 is provided with a rack 93, the fourth driving mechanism 83 is a servo motor, the servo motor is connected to a gear 94, the gear 94 is engaged with the two groups of racks 93 to drive the two groups of sliding frames 91 to approach or move away from each other when the servo motor is started to rotate forward or reverse.

[0048] As shown in Figure 1 , it is the first embodiment of the fourth driving mechanism 83 for synchronous lifting of the upper winding roller 81 and the lower winding roller 82. After using the servo motor, the running speed can be accurately adjusted and controlled. The servo motor is connected to the gear 94, and two groups of engaged racks 93 are connected to the upper and lower two groups of sliding frames 91. Figure 1 As shown in , when the gear 94 is reversed or rotated, it can synchronously drive the up and down movement of the rack 93 to approach or move away, thereby realizing the simultaneous driving action of the upper winding roller 81 and the lower winding roller 82, which can ensure the accuracy of adjusting the storage film section, and the whole transmission structure is simple and efficient, so that the cost is effectively controlled.

[0049] As an improved embodiment, the fourth driving mechanism 83 is a servo motor, which is connected to a transmission wheel 95. A transmission belt 96 is arranged on the transmission wheel 95 in a ring shape, and two groups of sliding frames 91 are connected to the two sides of the ring. When the servo motor is started to rotate forward or reverse, the transmission belt 96 is driven to rotate, so that the two groups of sliding frames 91 move close to or away from each other.

[0050] As shown in Figure 2 , it is a second embodiment of the fourth driving mechanism 83 for synchronously lifting the upper winding roller 81 and the lower winding roller 82. After using the servo motor, the running speed can be accurately controlled. The servo motor is connected to a transmission wheel 95, and a transmission belt 96 is arranged on the transmission wheel 95 in a ring shape. The upper and lower groups of sliding frames 91 are connected to one side of the transmission belt 96. Figure 2 As shown in Figure 2 , the lower sliding frame 91 is connected to the left side, and the upper sliding frame 91 is connected to the right side. When the transmission belt 96 rotates forward or reverse, the upper and lower sliding frames 91 are synchronously driven to move close to or away from each other, so that the upper winding roller 81 and the lower winding roller 82 are simultaneously driven. The accuracy of adjusting the film storage section can be ensured, and the overall transmission structure is simple and efficient, so that the cost is effectively controlled.

[0051] As an improved embodiment, the second driving mechanism 31 includes a second servo motor 311 connected to the input guide roller 3 and driving the input guide roller 3 to rotate when started.

[0052] As shown in Figure 1 , 2 , the second servo motor 311 can be accurately started and stopped by control, so as to drive the input guide roller 3 to rotate and accurately convey the soft package. The first servo motor 611 and the second servo motor 311 maintain the same speed, so as to ensure that the soft package is uniformly conveyed and supplemented to the storage space.

[0053] As an improved embodiment, the second driving mechanism 31 further includes a driven roller 312 and a second air cylinder 313. The second air cylinder 313 is connected to the driven roller 312 and adjusts the position of the driven roller 312 relative to the input guide roller 3 when started, so as to clamp the soft package when the input guide roller 3 and the driven roller 312 abut, and the driven roller 312 is synchronously driven to rotate when the input guide roller 3 rotates.

[0054] As shown in Figure 1 , 2As shown, the further provided driven roller 312 cooperates with the input guide roller 3 to clamp the soft package, and when the driven roller 312 and the input guide roller 3 rotate synchronously, the soft package is sequentially conveyed to the storage space; when the driven roller 312 and the input guide roller 3 stop, the soft package can be effectively clamped and limited, the conveying state of the soft package between the preceding unwinding roller 6 and the input guide roller 3 is maintained, and the soft package is not affected by the blowing and pulling of the subsequent air blower 5; and when the soft package needs to be replaced or debugged, the driven roller 312 can be separated from the input guide roller 3 by retracting the second cylinder 313, thereby facilitating the operation of the staff.

[0055] As an improved embodiment, S6 further comprises: when the lower sensor 22 detects the soft package, the lower sensor 22 feeds back a signal to stop the unwinding roller 6 and the input guide roller 3 first, and then the second cylinder 313 drives the driven roller 312 to retract, so that the air blower 5 blows the soft package between the unwinding roller 6 and the input guide roller 3 to the storage space, and then the second cylinder 313 extends the driven roller 312 to clamp the soft package with the input guide roller 3, and finally the air blower 5 stops running, and the soft package at the storage space is replenished.

[0056] As shown in Figure 1 , 2 When the unwinding roller 6 and the input guide roller 3 are unwinding the soft package, although they maintain the same unwinding speed to ensure the uniform conveying of the soft package, due to factors such as equipment errors and friction between structures, the speed difference between the unwinding roller 6 and the input guide roller 3 when conveying the soft package may occur, and the soft package between the unwinding roller 6 and the input guide roller 3 may be tensioned or loosened. Further defined step S6, after the soft package is replenished to a sufficient amount, the unwinding roller 6 and the input guide roller 3 are stopped first, and then the driven roller 312 is retracted, at this time the soft package between the unwinding roller 6 and the input guide roller 3 loses the limit, and can be blown tightly to the storage space under the blowing force of the air blower 5, thereby realizing the tensioning debugging of the soft package, and then the second cylinder 313 extends the driven roller 312 to clamp the soft package with the input guide roller 3, and then the air blower 5 is stopped, ensuring the flat state of the soft package.

[0057] As an improved embodiment, the first driving mechanism 61 comprises a first servo motor 611, a driving roller 612, a first cylinder 613 and a movable frame 614, the first servo motor 611 is connected to the driving roller 612 and drives the driving roller 612 to rotate when started, the first servo motor 611 is arranged on the movable frame 614, the first cylinder 613 is connected to the movable frame 614 and adjusts the position of the movable frame 614 relative to the unwinding roller 6 when started, and then the driving roller 612 is pressed against the unwinding roller 6.

[0058] As shown in Figure 3As shown, the flexible packaging on the unwinding roller 6 will consume and reduce its radius as it is unwound outward. By relying on the operation of the first cylinder 613 to push the drive roller 612 against the unwinding roller 6, the flexible packaging can be transported in an orderly and stable manner. The first servo motor 611 can be started and stopped precisely by control, thereby driving the drive roller 612 to transport the flexible packaging in an orderly and accurate manner.

[0059] As an improved specific implementation, the third drive mechanism 71 is a third cylinder, and the clamping mechanism 7 includes a support frame 72 and a brush 73. The third cylinder is connected to the brush 73 and adjusts the position of the brush 73 relative to the support frame 72 when it is started. The support frame 72 and the brush 73 clamp the flexible packaging. The brush 73 is located above the support frame 72 and is inclined at 5-10 degrees toward the output direction of the flexible packaging.

[0060] like Figure 2 As shown, after the flexible packaging passes around the lower winding roller 82, it winds between the brush 73 and the support frame 72. The lower part of the flexible packaging is supported by the support frame 72 and continues to be output outward. When clamping and limiting are required, the brush 73 is driven by the third cylinder to descend and press on the flexible packaging, which works with the support frame 72 to limit the flexible packaging. The brush 73 gently resists the flexible packaging to avoid damage. When the flexible packaging is to be output, the third cylinder drives the brush 73 to rise. The flexible packaging is pulled away from the support frame 72 by the output end and is pulled out by the upper brush 73. The brush 73 is tilted at the above angle to make the flexible packaging smoother when it is pulled out around the brush 73, reducing the resistance of the conveying.

[0061] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A method of using a dual dynamic film storage mechanism of a woven bag soft packaging conveyor, comprising a frame, characterized in that: The rack is sequentially provided with a U-shaped frame with a storage space as a first film storage position and a storage linkage roller group as a second film storage position; the storage linkage roller group comprises an upper winding roller, a lower winding roller, a fourth driving mechanism and a middle sensor, the upper winding roller and the lower winding roller are respectively arranged at the upper part and the lower part and are controlled to vertically move by the fourth driving mechanism to approach or separate, the soft package is wound around the upper winding roller and the lower winding roller as a film storage section, and the middle sensor is arranged at a height position between the upper winding roller and the lower winding roller, the upper part of the U-shaped frame is provided with an input guide roller and an output guide roller on both sides of the opening, a fan for blowing air to the storage space is arranged above the opening of the U-shaped frame, a pay-off roller for storing the soft package is arranged in front of the input guide roller, a clamping mechanism for limiting the soft package is arranged behind the storage linkage roller group, the pay-off roller is controlled to start and stop rotation by the first driving mechanism, the input guide roller is controlled to start and stop rotation by the second driving mechanism, and the clamping mechanism is controlled to clamp or release the soft package by the third driving mechanism, the soft package is sequentially wound around the pay-off roller, the input guide roller, the output guide roller and the storage linkage roller group, and is conveyed outward through the clamping mechanism; the soft package is hung and stored at the U-shaped frame, the side walls of the U-shaped frame are respectively provided with an upper sensor and a lower sensor at the upper and lower heights, and the upper sensor and the lower sensor are respectively connected to the first driving mechanism, the second driving mechanism and the fan for signal connection; The method for using the double dynamic film storage mechanism comprises: S1: initially storing two sections of soft packages in the storage space and the film storage section; S2: when the output of the soft package is performed in the subsequent process, the clamping mechanism is released from clamping and limiting the soft package, and the fourth driving mechanism is started to drive the upper winding roller and the lower winding roller to approach each other to shorten the film storage section, and the soft package at the film storage section is output outward; S3: after the output of the soft package is stopped, the clamping mechanism clamps the soft package again, and the fourth driving mechanism is stopped; S4: when the upper winding roller and the lower winding roller are detected by the middle sensor, the fourth driving mechanism is started by the feedback signal of the middle sensor to drive the upper winding roller and the lower winding roller to move away from each other to elongate the film storage section, and the soft package in the storage space is pulled out to supplement the film storage section; S5: when the upper sensor does not detect the soft package, the pay-off roller and the input guide roller are rotated by the feedback signal of the upper sensor to pay off the soft package to the storage space, and the fan is started to blow the soft package to be hung in the U-shaped storage space; S6: when the lower sensor detects the soft package, the pay-off roller, the input guide roller and the fan are stopped by the feedback signal of the lower sensor, and the soft package in the storage space is supplemented.

2. The method of using a dual dynamic film storage mechanism for a woven bag soft packaging conveyor as claimed in claim 1, characterized in that: The upper winding roller and the lower winding roller are respectively rotatably arranged on sliding frames, the sliding frames are arranged on vertical rails, and the fourth driving mechanism drives the upper and lower sliding frames to approach or move away from each other.

3. A method of using a dual dynamic film storage mechanism of a woven bag soft packaging conveyor according to claim 2, characterized in that: Step S2 further comprises: the shortening rate of the film storage section is consistent with the rate when the soft package is output outward in the subsequent process.

4. The method of using a dual dynamic film storage mechanism for a woven bag flexible packaging conveyor as defined in claim 2, wherein: The sliding frame is provided with a rack, the fourth driving mechanism is a servo motor, the servo motor is connected with a gear, the gear is engaged with the two sets of racks, when the servo motor is started, the two sets of sliding frames are driven to move close to or away from each other.

5. The method of using a dual dynamic film storage mechanism for a woven bag flexible packaging conveyor as defined in claim 2, wherein: The fourth driving mechanism is a servo motor, the servo motor is connected with a transmission wheel, the transmission wheel is provided with a transmission belt, the transmission belt is annular and the two sets of sliding frames are connected to the two sides of the annular transmission belt, when the servo motor is started, the transmission belt is driven to rotate, and the two sets of sliding frames are driven to move close to or away from each other.

6. A method of using a dual dynamic film storage mechanism of a woven bag flexible packaging conveyor according to any one of claims 1-5, characterized in that: The second driving mechanism comprises a second servo motor, the second servo motor is connected with the input guide roller and drives the input guide roller to rotate when the second servo motor is started.

7. A method of using a dual dynamic film storage mechanism of a woven bag soft packaging conveyor according to claim 6, characterized in that: The second driving mechanism further comprises a driven roller and a second air cylinder, the second air cylinder is connected with the driven roller and adjusts the position of the driven roller relative to the input guide roller when the second air cylinder is started, so that the soft package is clamped when the input guide roller and the driven roller abut, and the driven roller is driven to rotate synchronously when the input guide roller rotates.

8. A method of using a dual dynamic film storage mechanism of a woven bag soft packaging conveyor according to claim 7, characterized in that: S6 further comprises: when the lower sensor detects the soft package, the lower sensor feeds back a signal to stop the unwinding roller and the input guide roller, then the second air cylinder drives the driven roller to retract, the fan blows the soft package between the unwinding roller and the input guide roller to the storage space, then the second air cylinder drives the driven roller to extend again to clamp the soft package with the input guide roller, and finally the fan stops running, and the soft package in the storage space is replenished.

Images