Automatic film blowing and feeding device for liquid flexible packaging film

Abstract

The present invention relates to the technical field of packaging film blowing, cooling and shaping, and specifically to an automatic film blowing and feeding device for liquid soft packaging film, including a packaging film storage device, a guiding conveying device and a driving device for driving the packaging film storage device and the guiding conveying device to operate are installed on the left side of the packaging film storage device, and a packaging film conveying device is installed on the front side of the packaging film storage device. The present invention uses the linkage cooperation of the packaging film storage device, the guiding conveying device, the driving device and the packaging film conveying device, and uses the driving device to drive the propulsion mechanism to move forward intermittently, so that the push plate pushes the packaging film forward one by one, and then drives the frontmost packaging film to move to the left through the packaging film conveying device, first uses the fixed guide rail to guide the packaging film into the movable guide rail, and then makes the movable guide rail and the packaging film move synchronously, and uses the movable guide rail to guide the packaging film to fit, so as to avoid the top port of the packaging film from being skewed, and ensure the accuracy of the subsequent alignment of the soft packaging film port with the blowing port.

Description

Technical Field

[0001] The invention relates to the technical field of packaging film blowing, cooling and shaping, and in particular to an automatic film blowing and feeding device for liquid soft packaging film. Background Art

[0002] The process of making film bags from liquid flexible packaging film mainly includes the following steps: 1. Selecting suitable packaging film materials; 2. Producing flexible packaging film bags through extrusion, film blowing and other processes; 3. Cooling and shaping. During cooling and shaping, the flexible packaging film bags are usually transferred to the cooling station by automatic feeding equipment, in which the automatic feeding equipment often uses a manipulator with a suction cup to absorb a single flexible packaging film from a frame storing several flexible packaging film bags, and then transfers it. After the flexible packaging film bag is transferred to the cooling station, the air blowing port of the cooling equipment is aligned with the port of the flexible packaging film bag to blow air, so that the flexible packaging film is blown open, so as to further cool and shape the flexible packaging film.

[0003] However, the following deficiencies still exist in the automatic conveying and feeding process for cooling and shaping: 1. When the manipulator with a suction cup absorbs and transfers the flexible packaging film, the suction cup only performs point absorption and fixation on the non-port parts of the flexible packaging film. Since the flexible packaging film itself is relatively soft and has weak support, the parts of the flexible packaging film that are not absorbed and fixed, especially the ports, are difficult to always maintain a vertical and flat state during the transfer, which can easily affect the accuracy of the alignment between the port at the top of the flexible packaging film and the air outlet, thereby affecting the overall operating efficiency; 2. The existing packaging film feeding device feeds the flexible packaging film in the storage bin by pushing the flexible packaging film for the manipulator to absorb the flexible packaging film. When the flexible packaging film is used up, the manipulator needs to suspend the absorption and feeding. After the flexible packaging film is re-added to the storage bin, the manipulator continues to absorb the flexible packaging film, which increases the waiting time for the flexible packaging film to be replenished, affecting the efficiency of the cooling and shaping of the flexible packaging film. Summary of the invention

[0004] In order to solve the above problems, the present invention provides an automatic film blowing and feeding device for liquid soft packaging film, including a packaging film storage device, a guiding conveying device and a driving device for driving the packaging film storage device and the guiding conveying device to operate are installed on the left side of the packaging film storage device, a blowing cooling station is installed on the left side of the guiding conveying device, and a packaging film conveying device is installed on the front side of the packaging film storage device.

[0005] The packaging film storage device includes a storage basket, a push plate is slidably installed inside the storage basket, a propulsion mechanism for pushing the push plate forward is installed on the rear side of the storage basket, a film outlet is provided at the front end of the left side of the storage basket, and a suction port connected to the film outlet is provided at the front end of the storage basket.

[0006] The guiding and conveying equipment includes a first support frame arranged on the left side of the storage basket, fixed guide rails are installed at both left and right ends of the front side of the first support frame, the fixed guide rail on the right side is aligned with the film outlet, a movable guide rail located between the two fixed guide rails is installed on the front side of the first support frame for sliding left and right, a first moving mechanism that drives the movable guide rail to move is installed inside the first support frame, the movable guide rail consists of a U-shaped plate with an opening facing forward and a vertical plate installed on one side close to the horizontal section of the U-shaped plate, the fixed guide rail and the movable guide rail have the same structure, a number of flattening rollers equidistantly distributed up and down are rotatably installed on the front and rear opposite inner walls of the movable guide rail, and a transmission mechanism that drives the flattening rollers to rotate is installed at both upper and lower ends of the movable guide rail.

[0007] The driving device includes a driving motor 1 fixedly installed on the left side of the storage basket. The driving motor 1 is a double-output shaft motor. The output shaft at the bottom end of the driving motor 1 is transmission-connected to a grooved wheel mechanism that drives the propulsion mechanism to move intermittently. A reciprocating driving mechanism that drives the first moving mechanism to reciprocate is installed on the top of the first support frame. The output shaft at the top of the driving motor 1 is transmission-connected to the reciprocating driving mechanism.

[0008] In one possible implementation, the propulsion mechanism includes a hollow propulsion plate fixedly connected to the rear side of the pusher plate, a first rack is slidably installed on the bottom of the hollow propulsion plate, a first gear is rotatably installed on the rear side of the packaging film storage device, the first gear is meshed with the first rack, the groove wheel mechanism is transmission connected to the first gear, a return spring 1 is fixedly connected between the top of the first rack and the inner wall of the hollow propulsion plate, a first pull rod is fixedly connected to the top of the return spring 1, the top of the first pull rod slides through to the top of the hollow propulsion plate, and a locking component for limiting the first pull rod is installed inside the first pull rod.

[0009] In one possible implementation, the locking assembly includes a locking block symmetrically and slidably installed inside the first pull rod, a return spring 2 is fixedly connected between the left and right locking blocks, a pushing block is fixedly connected to the top of the locking block close to the center line of the first pull rod, a pressure rod is slidably installed on the top of the first pull rod, an inclined pressure plate is symmetrically and fixedly connected to the bottom of the pressure rod, the end of the inclined pressure plate away from the center line of the first pull rod is inclined downward and slidably cooperates with the top of the corresponding pushing block, and the top of the pressure rod slides through to the top of the first pull rod.

[0010] In one possible implementation, the first moving mechanism includes a plurality of rotating shafts rotatably installed at equal intervals on the left and right sides inside the first support frame, belt pulleys are fixedly installed at the upper and lower ends of the rotating shafts, a transmission belt is commonly connected between the belt pulleys diametrically opposed on the left and right sides, and the movable guide rail is fixedly installed between the upper and lower transmission belts.

[0011] In a possible implementation, adjacent flattening rollers corresponding to the same vertical line are connected by a belt drive, and the left and right ends of the flattening roller located in the middle of the plurality of flattening rollers arranged vertically are provided with spiral patterns, and the thread directions of the spiral patterns at both ends are opposite.

[0012] In one possible implementation, the transmission mechanism includes a first transmission shaft vertically rotatably installed inside the movable guide rail, the first transmission shaft has an end away from the center of the movable guide rail fixedly connected to a second gear, the front side of the first support frame is fixedly connected to a second rack, the second gear is meshed with the second rack, and a second transmission shaft symmetrically distributed front and rear about the first transmission shaft is rotatably installed inside the movable guide rail, the first transmission shaft and the second transmission shaft are connected via a gear set, and the second transmission shaft and the adjacent flattening roller are connected via a bevel gear set.

[0013] In one possible implementation, the reciprocating drive mechanism includes a turntable fixedly mounted on a top output shaft of a driving motor, a sliding rod fixedly connected to the edge of the top of the turntable, a limiting guide rail fixedly connected to the top of the first support frame, a third rack is installed inside the limiting guide rail for sliding back and forth, a third gear is coaxially fixedly connected to the top of the right rotating shaft, the third rack is meshed with the third gear, the rear end of the third rack is fixedly connected to a slide groove frame, and the sliding rod is installed inside the slide groove frame for sliding left and right.

[0014] In one possible implementation, the packaging film conveying equipment includes a second support frame installed on the front side of the first support frame, the outside of the second support frame is provided with a plurality of electric suction cups evenly distributed around the edge of the second support frame, the inside of the second support frame is installed with a second moving mechanism for driving the electric suction cups to circulate, the second moving mechanism has the same structure as the first moving mechanism, and the top of the second support frame is installed with a driving motor 2 for driving the second moving mechanism to rotate.

[0015] In one possible implementation, a limiting device for limiting the electric suction cup is also installed on the front side of the movable guide rail, and the limiting device includes a shell fixedly connected to the front side of the movable guide rail, a wedge block is installed on the bottom of the shell for sliding up and down, the hypotenuse of the wedge block is inclined to the lower left, and a second pull rod is fixedly connected to the top of the wedge block, and a return spring three is fixedly connected between the top of the wedge block and the inner wall of the shell, and the top of the second pull rod slides through the top of the shell and is fixedly connected to a guide rod, and the side of the electric suction cup facing the inside of the second support frame is fixedly connected to a limiting slot frame, and the limiting slot frame cooperates with the wedge block.

[0016] In one possible implementation, an unlocking device for releasing the limit is fixedly connected to the top of the left end of the first support frame, and the unlocking device includes a guide block fixedly connected to the top of the first support frame, a guide bevel is provided on the front side of the guide block, the left end of the guide bevel is inclined upward, and a trumpet-shaped opening is provided at the right end of the guide bevel, and the guide rod cooperates with the guide bevel.

[0017] The beneficial effects of the present invention are as follows: 1. The present invention uses the linkage cooperation of the packaging film storage device, the guiding and conveying device, the driving device and the packaging film conveying device, and uses the driving device to drive the propulsion mechanism to move forward intermittently, so that the pushing plate pushes the packaging films forward one by one, and then drives the front end of the packaging film to move to the left through the packaging film conveying device, first uses the fixed guide rail to guide the packaging film to the movable guide rail, and then makes the movable guide rail and the packaging film move synchronously, and uses the movable guide rail to guide the packaging film to fit, so as to avoid the top port of the packaging film from being skewed. While the movable guide rail moves, the transmission mechanism can drive the flattening roller to rotate, and uses the flattening roller to flatten the upper and lower ends of the packaging film, so as to further keep the packaging film in a vertical and flat state during the transfer, thereby ensuring the accuracy of the subsequent alignment of the flexible packaging film port with the blowing port, and also helping to improve the overall working efficiency.

[0018] 2. The present invention drives the driving motor 1 and the reciprocating driving mechanism through a single driving source, and utilizes the driving motor 1 to drive the propulsion mechanism to intermittently push the pushing plate forward, which can push the packaging film forward for feeding, and at the same time utilizes the reciprocating driving mechanism to drive the first moving mechanism to drive the movable guide rail to reciprocate left and right, which can continuously guide and transport the packaging film between the storage basket and the blowing and cooling station, so as to facilitate the continuous loading of the packaging film one by one, and when the packaging film in the storage basket is almost used up, the first pull rod is pulled to drive the first rack to move upward, so that the first rack can be separated from the first gear, and then the hollow propulsion plate and the pushing plate are slid backward, so that packaging film can be added to the storage basket, and there is no need to suspend the loading of the packaging film, which is beneficial to improving the loading efficiency of the packaging film.

[0019] 3. The present invention uses a limiting device and an unlocking device in coordination. When the electric suction cup moves with the packaging film adsorbed on it into the movable guide rail, the wedge block can be engaged with the limiting slot frame, thereby limiting the movable guide rail and the electric suction cup, improving the synchronization of the movable guide rail and the electric suction cup when they move to the left, and facilitating the movable guide rail to guide the packaging film to fit. When the movable guide rail moves to dock with the fixed guide rail at the left end, the guide inclined slot is used to guide the guide rod, so that the second pull rod pulls the wedge block to move upward and separate from the limiting slot frame, thereby facilitating the release of the limiting of the movable guide rail and the electric suction cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure from the first viewing angle of the present invention.

[0021] Figure 2 It is a schematic diagram of the stereoscopic structure from a second viewing angle of the present invention.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the packaging film storage device of the present invention from a first perspective.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the packaging film storage device of the present invention from a second viewing angle.

[0024] Figure 5 It is a schematic diagram of a half-section three-dimensional structure of a hollow propulsion plate of the present invention.

[0025] Figure 6 The present invention Figure 5 Enlarged view of point A in the middle.

[0026] Figure 7 It is a three-dimensional structural schematic diagram of the guiding and conveying device of the present invention.

[0027] Figure 8 It is a sectional view of the left side of the movable guide rail of the present invention.

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the flattening roller of the present invention.

[0029] Fig.10 It is a three-dimensional structural schematic diagram of the packaging film conveying equipment of the present invention.

[0030] Fig.11 It is a three-dimensional structural schematic diagram of the limiting device of the present invention.

[0031] Fig.12 It is a schematic diagram of the three-dimensional structure of the unlocking device of the present invention.

[0032] In the figure: 1. packaging film storage device; 11. storage basket; 111. film outlet; 112. suction port; 12. push plate; 13. push mechanism; 131. hollow push plate; 132. first rack; 133. first gear; 134. return spring 1; 135. first pull rod; 136. locking assembly; 1361. locking block; 1362. return spring 2; 1363. pushing block; 1364. pressure rod; 1365. oblique pressure plate; 2. guiding and conveying device; 21. first support frame; 22. fixed guide rail; 23. movable guide rail; 24. first moving mechanism; 241. rotating shaft; 242. belt pulley; 243. transmission belt; 25. flattening roller; 251. spiral pattern; 26. transmission mechanism; 261 , the first transmission shaft; 262, the second gear; 263, the second rack; 264, the second transmission shaft; 3, driving device; 31, driving motor one; 32, groove wheel mechanism; 33, reciprocating driving mechanism; 331, turntable; 332, slide rod; 333, limiting guide rail; 334, third rack; 335, third gear; 336, slide slot frame; 4, blowing cooling station; 5, packaging film conveying device; 51, second support frame; 52, electric suction cup; 53, second moving mechanism; 54, driving motor two; 6, limiting device; 61, shell; 62, wedge block; 63, second pull rod; 64, reset spring three; 65, guide rod; 66, limiting slot frame; 7, unlocking device; 71, guide block; 72, guide inclined slot. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0034] See also Figure 1 and Figure 2 An automatic film blowing and feeding device for liquid soft packaging film comprises a packaging film storage device 1, a guide conveying device 2 and a driving device 3 for driving the packaging film storage device 1 and the guide conveying device 2 to operate are installed on the left side of the packaging film storage device 1, a blowing and cooling station 4 is installed on the left side of the guide conveying device 2, and a packaging film conveying device 5 is installed on the front side of the packaging film storage device 1. The blowing and cooling station 4 is a prior art and has a mechanism for fixing the packaging film. The drawings of the present invention only show its setting position, but not its specific structure.

[0035] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The packaging film storage device 1 includes a storage basket 11, a push plate 12 is slidably installed inside the storage basket 11, a propulsion mechanism 13 is installed on the rear side of the storage basket 11 to push the push plate 12 forward, a film outlet 111 is opened at the front end of the left side of the storage basket 11, and a suction port 112 connected to the film outlet 111 is opened at the front end of the storage basket 11.

[0036] See also Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8 The guiding conveying device 2 includes a first support frame 21 arranged on the left side of the storage basket 11, and fixed guide rails 22 are installed at the left and right ends of the front side of the first support frame 21. A movable guide rail 23 located between the two fixed guide rails 22 is installed on the front side of the first support frame 21 for sliding left and right. A first moving mechanism 24 that drives the movable guide rail 23 to move is installed inside the first support frame 21. The movable guide rail 23 consists of a U-shaped plate with an opening facing forward and a vertical plate installed on one side close to the horizontal section of the U-shaped plate. The fixed guide rail 22 and the movable guide rail 23 have the same structure. A plurality of flattening rollers 25 equidistantly distributed up and down are rotatably installed on the front and rear opposite inner walls of the movable guide rail 23, and a transmission mechanism 26 that drives the flattening rollers 25 to rotate is installed at the upper and lower ends of the movable guide rail 23.

[0037] During operation, the fixed guide rails 22 on the left and right sides are aligned with the blowing and cooling station 4 and the film outlet 111 respectively, and the packaging film in the storage basket 11 moves to the left from the film outlet 111, and then passes through the fixed guide rail 22 on the right and enters the movable guide rail 23. Subsequently, the packaging film moves as a whole with the movable guide rail 23 until it is fitted with the fixed guide rail 22 on the left. The packaging film moves to the left from the movable guide rail 23, and then passes through the fixed guide rail 22 on the left and enters the blowing and cooling station 4. The fixed guide rails 22 and the movable guide rails 23 are used to guide and limit the packaging film to avoid deviation of the port of the packaging film and ensure that the packaging film is vertically flat.

[0038] See also Figure 1 , Figure 2 , Figure 4 and Figure 7 The driving device 3 includes a driving motor 31 fixedly installed on the left side of the storage basket 11. The driving motor 31 is a double-output shaft motor. The output shaft at the bottom of the driving motor 31 is transmission-connected to a grooved wheel mechanism 32 that drives the propulsion mechanism 13 to move intermittently. A reciprocating driving mechanism 33 that drives the first moving mechanism 24 to reciprocate is installed on the top of the first support frame 21. The output shaft at the top of the driving motor 31 is transmission-connected to the reciprocating driving mechanism 33.

[0039] See also Figure 1-Figure 6The pushing mechanism 13 includes a hollow pushing plate 131 fixedly connected to the rear side of the pushing plate 12, a first rack 132 is slidably installed at the bottom of the hollow pushing plate 131, a first gear 133 is rotatably installed at the rear side of the packaging film storage device 1, the first gear 133 is meshed with the first rack 132, the groove wheel mechanism 32 is transmission connected with the first gear 133, a return spring 134 is fixedly connected between the top of the first rack 132 and the inner wall of the hollow pushing plate 131, a first pull rod 135 is fixedly connected to the top of the return spring 134, the top of the first pull rod 135 slides through the top of the hollow pushing plate 131, and a locking assembly 136 for limiting the first pull rod 135 is installed inside the first pull rod 135.

[0040] The grooved wheel mechanism 32 is driven by a driving motor 31, and then the grooved wheel mechanism 32 drives the first gear 133 to rotate intermittently, so that the first gear 133 intermittently pushes the hollow propulsion plate 131 to move forward, so that the push plate 12 can gradually push the packaging film forward, so that every time the packaging film conveying device 5 conveys a packaging film, the subsequent packaging films will be replenished in turn, which is convenient for loading the packaging films one by one. Under the locking of the locking component 136, the first rack 132 is stably meshed with the first gear 133.

[0041] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 The locking assembly 136 includes a locking block 1361 symmetrically and slidably installed inside the first pull rod 135, a return spring 1362 is fixedly connected between the left and right locking blocks 1361, a pushing block 1363 is fixedly connected to the top of the locking block 1361 close to the center line of the first pull rod 135, a pressure rod 1364 is slidably installed on the top of the first pull rod 135, and an inclined pressure plate 1365 is symmetrically and fixedly connected to the bottom of the pressure rod 1364, the end of the inclined pressure plate 1365 away from the center line of the first pull rod 135 is tilted downward and slidably cooperates with the top of the corresponding pushing block 1363, and the top of the pressure rod 1364 slides through to the top of the first pull rod 135.

[0042] When the locking block 1361 is to be released from the lock of the first pull rod 135, the pressure rod 1364 is pressed downward, and the inclined pressure plate 1365 is used to push the pushing block 1363 to drive the locking block 1361 to retract into the first pull rod 135, thereby releasing the lock of the first pull rod 135, making it easier for the first pull rod 135 to move up and down. When the packaging film in the storage basket 11 is almost used up, while the previous packaging film is being loaded and the next packaging film is waiting to be loaded, the first rack 132 can be driven upward by pulling the first pull rod 135, so that the first rack 132 can be moved upward. 32 separates from the first gear 133, and then pushes the hollow propulsion plate 131 and the push plate 12 to move backward, so that the push plate 12 can be kept away from the remaining packaging film, and then the packaging film is replenished into the storage basket 11 without stopping the loading of the packaging film. After the replenishment is completed, the push plate 12 is pushed forward to press the packaging film, and then the first pull rod 135 is pushed downward to make the first rack 132 mesh with the first gear 133 again, and then the pressure rod 1364 is moved upward. At this time, the rebound force of the reset spring 1362 pushes the locking block 1361 to protrude to the outside of the first pull rod 135, and re-locks the first pull rod 135.

[0043] See also Figure 2 and Figure 7 The first moving mechanism 24 includes a plurality of rotating shafts 241 rotatably installed at equal intervals on the left and right inside the first support frame 21, and belt pulleys 242 are fixedly installed at the upper and lower ends of the rotating shafts 241. A transmission belt 243 is commonly connected between the left and right opposite belt pulleys 242, and the movable guide rail 23 is fixedly installed between the upper and lower transmission belts 243.

[0044] See also Figure 1 , Figure 2 , Figure 4 and Figure 7 The reciprocating drive mechanism 33 includes a turntable 331 fixedly mounted on the top output shaft of the driving motor 31, a sliding rod 332 is fixedly connected to the edge of the top of the turntable 331, a limiting guide rail 333 is fixedly connected to the top of the first support frame 21, a third rack 334 is slidably mounted inside the limiting guide rail 333, a third gear 335 is coaxially fixedly connected to the top of the right rotating shaft 241, the third rack 334 is meshed with the third gear 335, a slide groove frame 336 is fixedly connected to the rear end of the third rack 334, and the sliding rod 332 is slidably mounted inside the slide groove frame 336.

[0045] The turntable 331 and the slide bar 332 are driven to rotate by the driving motor 31. During the rotation process, the slide bar 332 will slide left and right in the slide slot frame 336 and push the third rack 334 to move back and forth. The third rack 334 is used to drive the third gear 335 and the rotating shaft 241 to rotate back and forth, and then the belt pulley 242 drives the transmission belt 243 to move back and forth, so that the transmission belt 243 drives the movable guide rail 23 to move back and forth between the two fixed guide rails 22 to continuously load the packaging film.

[0046] See also Figure 1 , Figure 7 , Figure 8 and Fig. 9 The adjacent flattening rollers 25 corresponding to the same vertical line are connected by belt transmission. The left and right ends of the flattening roller 25 located in the middle among the plurality of flattening rollers 25 arranged vertically are provided with spiral patterns 251, and the thread directions of the spiral patterns 251 at the two ends are opposite.

[0047] See also Figure 1 , Figure 7 and Figure 8 The transmission mechanism 26 includes a first transmission shaft 261 vertically rotatably installed inside the movable guide rail 23, and the first transmission shaft 261 is fixedly connected to the second gear 262 at one end away from the center of the movable guide rail 23. The front side of the first support frame 21 is fixedly connected to the second rack 263, and the second gear 262 is meshed with the second rack 263. The movable guide rail 23 has a second transmission shaft 264 symmetrically distributed front and rear about the first transmission shaft 261 installed inside the movable guide rail 23. The first transmission shaft 261 and the second transmission shaft 264 are connected by a gear set, and the second transmission shaft 264 and the adjacent flattening roller 25 are connected by a bevel gear set.

[0048] When the movable guide rail 23 moves to the left, the second rack 263 can drive the second gear 262 and the first transmission shaft 261 to rotate, and then the first transmission shaft 261 drives the second transmission shaft 264 to rotate through the gear set, and the second transmission shaft 264 drives the flattening roller 25 to rotate through the bevel gear set and the belt. The flattening rollers 25 on the front and rear sides of the packaging film rotate towards each other, the upper flattening roller 25 flattens the top of the packaging film upwards, and the lower flattening roller 25 flattens the bottom of the packaging film downwards. At the same time, the spiral pattern 251 can pull the left and right sides of the packaging film outward, which is beneficial for the packaging film to continue to maintain a vertical and flat state during the transfer.

[0049] See also Figure 1 , Figure 3 and Fig.10The packaging film conveying equipment 5 includes a second support frame 51 installed on the front side of the first support frame 21, and a plurality of electric suction cups 52 are evenly distributed around the edge of the second support frame 51 on the outside of the second support frame 51. A second moving mechanism 53 for driving the electric suction cup 52 to circulate is installed inside the second support frame 51. The second moving mechanism 53 has the same structure as the first moving mechanism 24, and a driving motor 54 for driving the second moving mechanism 53 to rotate is installed on the top of the second support frame 51.

[0050] The second moving mechanism 53 is driven by the driving motor 2 54 to operate, so that the second moving mechanism 53 drives the electric suction cup 52 to move back and forth around the edge of the second support frame 51, and the electric suction cup 52 near the side of the packaging film storage device 1 moves horizontally from right to left. When the electric suction cup 52 moves to the suction port 112 and is directly opposite to the packaging film, it stops moving, and the electric suction cup 52 is used to absorb a packaging film, and then the second moving mechanism 53 drives the electric suction cup 52 to continue to move to the left. When the electric suction cup 52 drives the packaging film to move to the movable The movable guide rail 23 then stops moving, at which point the electric suction cup 52 is aligned with the movable guide rail 23, and then the movable guide rail 23 and the electric suction cup 52 move synchronously to the left, and when the movable guide rail 23 moves to dock with the fixed guide rail 22 at the left end, the movable guide rail 23 stops moving, and the electric suction cup 52 continues to drive the packaging film to move to the blowing cooling station 4, at which point the electric suction cup 52 stops moving and releases the adsorption of the packaging film, and finally the electric suction cup 52 rotates to the side of the second support frame 51 away from the guiding conveying device 2 and moves right to its initial position.

[0051] See also Figure 1 , Figure 7 , Fig.10 and Fig.11 A limiting device 6 for limiting the electric suction cup 52 is also installed on the front side of the movable guide rail 23. The limiting device 6 includes a shell 61 fixedly connected to the front side of the movable guide rail 23. A wedge block 62 is installed on the bottom of the shell 61 for sliding up and down. The hypotenuse of the wedge block 62 is inclined to the lower left. A second pull rod 63 is fixedly connected to the top of the wedge block 62. A return spring three 64 is fixedly connected between the top of the wedge block 62 and the inner wall of the shell 61. The top of the second pull rod 63 slides through the top of the shell 61 and is fixedly connected to a guide rod 65. The side of the electric suction cup 52 facing the inside of the second support frame 51 is fixedly connected to a limiting slot frame 66. The limiting slot frame 66 cooperates with the wedge block 62. The height of the left side of the limiting slot frame 66 is lower than the height of the right side.

[0052] When the electric suction cup 52 moves the packaging film to the inside of the movable guide rail 23, the limiting slot frame 66 is gradually aligned with the wedge block 62. At the beginning, the left side of the limiting slot frame 66 will push the wedge block 62 to move upward and compress the return spring three 64. When the limiting slot frame 66 is completely aligned with the wedge block 62, the rebound force of the return spring three 64 can insert the wedge block 62 into the inside of the limiting slot frame 66, and clamp the movable guide rail 23 and the electric suction cup 52 together, thereby improving the synchronization of the movable guide rail 23 and the electric suction cup 52 when moving.

[0053] See also Figure 1 , Figure 7 , Fig.11 and Fig.12 An unlocking device 7 for releasing the limit is fixedly connected to the top of the left end of the first support frame 21. The unlocking device 7 includes a guide block 71 fixedly connected to the top of the first support frame 21. A guide bevel 72 is provided on the front side of the guide block 71. The left end of the guide bevel 72 is inclined upward, and a trumpet-shaped opening is provided at the right end of the guide bevel 72. The guide rod 65 cooperates with the guide bevel 72.

[0054] When the movable guide rail 23 moves to the left and is about to contact the fixed guide rail 22 on the left, the guide rod 65 will enter the guide bevel groove 72, and the guide rod 65 will move obliquely upward through the guide bevel groove 72. Then the guide rod 65 drives the second pull rod 63 and the wedge block 62 to move upward, so that the wedge block 62 can be separated from the limiting slot frame 66, thereby releasing the limiting of the movable guide rail 23 and the electric suction cup 52. After the movable guide rail 23 contacts the fixed guide rail 22 on the left and stops moving, the electric suction cup 52 can continue to move to the left.

[0055] During specific use, step one, put the packaging film into the storage basket 11 in front of the pushing plate 12, and drive the grooved wheel mechanism 32 to operate through the driving motor 1 31, and then the grooved wheel mechanism 32 drives the first gear 133 to rotate intermittently, so that the first gear 133 drives the first rack 132 and the hollow pushing plate 131 to move forward, so that the pushing plate 12 pushes the packaging film to the front end of the storage basket 11 and aligns it with the film outlet 111. At this time, stop driving the motor 1 31, and drive the second moving mechanism 53 to operate through the driving motor 2 54, so that the second moving mechanism 53 drives the electric suction cup 52 close to the side of the packaging film storage device 1 to move to the left, and when the electric suction cup 52 moves to the suction port 112, it stops moving, and uses the electric suction cup 52 to adsorb a packaging film.

[0056] Step 2: After that, the electric suction cup 52 absorbs the packaging film and moves to the left, and the packaging film is moved to the left from the film outlet 111. Then, the packaging film is moved to the left into the movable guide rail 23 along the inner wall of the right fixed guide rail 22. When the electric suction cup 52 is completely aligned with the movable guide rail 23, the movement is stopped. At this time, the limit slot frame 66 moves to align with the wedge block 62. The reset spring 3 64 pushes the wedge block 62 to move downward and snap into the limit slot frame 66, limiting the movable guide rail 23 and the electric suction cup 52, and then the drive is started at the same time. The motor 1 31 and the driving motor 2 54 drive the turntable 331 and the slide bar 332 to rotate through the driving motor 1 31, so that the slide bar 332 pushes the slide slot frame 336 and the third rack 334 to move back and forth. When the third rack 334 moves forward, the third rack 334 pushes the third gear 335 and the rotating shaft 241 to rotate, and then the belt pulley 242 drives the transmission belt 243 to rotate, so that the transmission belt 243 drives the movable guide rail 23 to move to the left. At this time, the movable guide rail 23 and the electric suction cup 52 move to the left synchronously with the packaging film.

[0057] Step three, when the movable guide rail 23 moves to the left, the second gear 262 will rotate along the second rack 263, and the second gear 262 will drive the first transmission shaft 261 to rotate, and then the first transmission shaft 261 will drive the second transmission shaft 264 to rotate through the gear set, and the second transmission shaft 264 will drive the flattening roller 25 to rotate through the bevel gear set, and the flattening roller 25 will be used to flatten the upper and lower ends of the packaging film, so that the packaging film can continue to maintain a vertical and flat state during the transfer. When the movable guide rail 23 moves to the left, the driving motor 31 drives the first gear 133 to rotate through the grooved wheel mechanism 32, so that the hollow propulsion plate 131 pushes the push plate 12 to move forward, thereby pushing the packaging film forward.

[0058] Step 4, when the movable guide rail 23 moves to the left end of the first support frame 21, the guide rod 65 enters the guide inclined groove 72 and moves obliquely upward along the guide inclined groove 72, and the guide rod 65 pulls the wedge block 62 upward through the second pull rod 63, so that the wedge block 62 is separated from the limiting slot frame 66, and the limit between the movable guide rail 23 and the electric suction cup 52 is released. When the movable guide rail 23 is in contact with the fixed guide rail 22 on the left, it stops moving, and the packaging film is carried by the electric suction cup 52 from the movable guide rail 23 to the left to slide to the fixed guide rail 22 on the left, and moves along the fixed guide rail 22 on the left to the blowing cooling station 4. At this time, the electric suction cup 52 stops moving and releases the adsorption of the packaging film, so that the packaging film remains in the blowing cooling station 4 to be blown and cooled.

[0059] Step 5: The second moving mechanism 53 continues to drive the electric suction cup 52 to move, so that the electric suction cup 52 moves rightward along the side of the second support frame 51 away from the packaging film storage device 1 to the initial position for subsequent packaging film loading.

[0060] Step 6: When the packaging film in the storage basket 11 is almost used up, the pressure rod 1364 is pressed downward, and the pressure rod 1364 is used to push the inclined pressure plate 1365 downward, and then the inclined pressure plate 1365 pushes the pushing block 1363 to drive the locking block 1361 to retract into the first pull rod 135, thereby releasing the lock on the first pull rod 135, and then pull the first pull rod 135 to drive the first rack 132 to move upward, so that the first rack 132 is separated from the first gear 133, and then Push the hollow propulsion plate 131 and the pushing plate 12 backward to separate the pushing plate 12 from the remaining packaging film, and then add the packaging film into the storage basket 11. Then push the first pull rod 135 downward to re-engage the hollow propulsion plate 131 with the first gear 133, and then release the pressure rod 1364. Use the reset spring 1362 to push the locking block 1361 to move and protrude to the outside of the first pull rod 135, so that the locking block 1361 limits the first pull rod 135 again.

[0061] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic film blowing and feeding device for liquid flexible packaging film, characterized in that: A packaging film storage device (1), wherein a guide conveying device (2) and a driving device (3) for driving the packaging film storage device (1) and the guide conveying device (2) are installed on the left side of the packaging film storage device (1), a blowing cooling station (4) is installed on the left side of the guide conveying device (2), and a packaging film conveying device (5) is installed on the front side of the packaging film storage device (1); The packaging film storage device (1) comprises a storage basket (11), a material pusher plate (12) is slidably mounted inside the storage basket (11) in a forward and backward manner, a propulsion mechanism (13) is mounted on the rear side of the storage basket (11) for pushing the material pusher plate (12) forward, a film outlet (111) is provided at the front end of the left side of the storage basket (11), and a suction port (112) is provided at the front end of the storage basket (11) and is connected to the film outlet (111); The guiding and conveying device (2) comprises a first support frame (21) arranged on the left side of the storage basket (11), fixed guide rails (22) are installed at both left and right ends of the front side of the first support frame (21), a movable guide rail (23) located between the two fixed guide rails (22) is installed on the front side of the first support frame (21) for sliding left and right, a first moving mechanism (24) for driving the movable guide rail (23) to move is installed inside the first support frame (21), the movable guide rail (23) is composed of a U-shaped plate with an opening facing forward and a vertical plate installed on one side close to the horizontal section of the U-shaped plate, the fixed guide rail (22) and the movable guide rail (23) have the same structure, a plurality of flattening rollers (25) equidistantly distributed up and down are rotatably installed on the front and rear opposite inner walls of the movable guide rail (23), and a transmission mechanism (26) for driving the flattening rollers (25) to rotate is installed at both upper and lower ends of the movable guide rail (23); The driving device (3) comprises a driving motor (31) fixedly mounted on the left side of the storage basket (11); the driving motor (31) is a double-output shaft motor; the output shaft at the bottom end of the driving motor (31) is drivingly connected to a grooved wheel mechanism (32) for driving the propulsion mechanism (13) to move intermittently; and the output shaft at the top end of the driving motor (31) is drivingly connected to a reciprocating driving mechanism (33) for driving the first moving mechanism (24) to reciprocate.

2. The automatic film blowing and feeding device for liquid flexible packaging film according to claim 1, characterized in that: The propulsion mechanism (13) comprises a hollow propulsion plate (131) fixedly connected to the rear side of the push plate (12); a first rack (132) is slidably mounted on the bottom of the hollow propulsion plate (131); a first gear (133) is rotatably mounted on the rear side of the packaging film storage device (1); the first gear (133) is meshed with the first rack (132); the grooved wheel mechanism (32) is transmission-connected to the first gear (133); a return spring (134) is fixedly connected between the top of the first rack (132) and the inner wall of the hollow propulsion plate (131); a first pull rod (135) is fixedly connected to the top of the return spring (134); the top of the first pull rod (135) slides through the top of the hollow propulsion plate (131); a locking assembly (136) for limiting the first pull rod (135) is installed inside the first pull rod (135).

3. The automatic film blowing and feeding device for liquid flexible packaging film according to claim 2, characterized in that: The locking assembly (136) includes a locking block (1361) symmetrically slidably installed inside the first pull rod (135), a return spring 2 (1362) is fixedly connected between the left and right locking blocks (1361), a pushing block (1363) is fixedly connected to the top of the locking block (1361) close to the center line of the first pull rod (135), a pressure rod (1364) is slidably installed on the top of the first pull rod (135), and an inclined pressure plate (1365) is symmetrically fixedly connected to the bottom of the pressure rod (1364), the end of the inclined pressure plate (1365) away from the center line of the first pull rod (135) is tilted downward and slidably cooperates with the top of the corresponding pushing block (1363), and the top of the pressure rod (1364) slides through to the top of the first pull rod (135).

4. The automatic film blowing and feeding device for liquid flexible packaging film according to claim 1, characterized in that: The first moving mechanism (24) comprises a plurality of rotating shafts (241) rotatably mounted at equal intervals on the left and right inside the first support frame (21), belt pulleys (242) being fixedly mounted on both upper and lower ends of the rotating shafts (241), a transmission belt (243) being commonly connected and transmitting between the belt pulleys (242) opposite to each other on the left and right, and the movable guide rail (23) being fixedly mounted between the upper and lower transmission belts (243).

5. The automatic film blowing and feeding device for liquid flexible packaging film according to claim 1, characterized in that: The adjacent flattening rollers (25) corresponding to the same vertical line are connected via a belt drive, and the flattening roller (25) located in the middle of the plurality of flattening rollers (25) arranged vertically has spiral patterns (251) at both ends, and the spiral patterns (251) at both ends have opposite thread directions.

6. The automatic film blowing and feeding device for liquid flexible packaging film according to claim 1, characterized in that: The transmission mechanism (26) comprises a first transmission shaft (261) which is vertically rotatably mounted inside the movable guide rail (23); a second gear (262) is fixedly connected to one end of the first transmission shaft (261) away from the center of the movable guide rail (23); a second rack (263) is fixedly connected to the front side of the first support frame (21); the second gear (262) is meshed with the second rack (263); a second transmission shaft (264) which is symmetrically distributed frontward and rearward about the first transmission shaft (261) is rotatably mounted inside the movable guide rail (23); the first transmission shaft (261) and the second transmission shaft (264) are connected to each other via a gear set; and the second transmission shaft (264) and the adjacent flattening roller (25) are connected to each other via a bevel gear set.

7. The automatic film blowing and feeding device for liquid flexible packaging film according to claim 4, characterized in that: The reciprocating drive mechanism (33) comprises a turntable (331) fixedly mounted on the top output shaft of a driving motor (31); a slide bar (332) is fixedly connected to the edge of the top of the turntable (331); a limit guide rail (333) is fixedly connected to the top of the first support frame (21); a third rack (334) is slidably mounted inside the limit guide rail (333) for forward and backward movement; a third gear (335) is coaxially fixedly connected to the top of the right rotating shaft (241); the third rack (334) meshes with the third gear (335); a rear end of the third rack (334) is fixedly connected to a slide groove frame (336); and the slide bar (332) is slidably mounted inside the slide groove frame (336) for left and right movement.

8. The automatic film blowing and feeding device for liquid flexible packaging film according to claim 1, characterized in that: The packaging film conveying device (5) comprises a second support frame (51) installed on the front side of the first support frame (21); a plurality of electric suction cups (52) evenly distributed around the edge of the second support frame (51) are arranged on the outside of the second support frame (51); a second moving mechanism (53) for driving the electric suction cup (52) to cyclically move is installed inside the second support frame (51); the second moving mechanism (53) has the same structure as the first moving mechanism (24); and a driving motor (54) for driving the second moving mechanism (53) to rotate is installed on the top of the second support frame (51).

9. The automatic film blowing and feeding device for liquid flexible packaging film according to claim 8, characterized in that: A limiting device (6) for limiting the electric suction cup (52) is also installed on the front side of the movable guide rail (23), and the limiting device (6) includes a shell (61) fixedly connected to the front side of the movable guide rail (23), and a wedge block (62) is installed on the bottom of the shell (61) for sliding up and down, and the hypotenuse of the wedge block (62) is inclined to the lower left, and the top of the wedge block (62) is fixedly connected to a second pull rod (63), and a return spring three (64) is fixedly connected between the top of the wedge block (62) and the inner wall of the shell (61), and the top of the second pull rod (63) slides through the top of the shell (61) and is fixedly connected to a guide rod (65), and the side of the electric suction cup (52) facing the inside of the second support frame (51) is fixedly connected to a limiting slot frame (66), and the limiting slot frame (66) cooperates with the wedge block (62).

10. The automatic film blowing and feeding device for liquid flexible packaging film according to claim 9, characterized in that: An unlocking device (7) for releasing the limit is fixedly connected to the top of the left end of the first support frame (21), and the unlocking device (7) comprises a guide block (71) fixedly connected to the top of the first support frame (21), a guide inclined groove (72) is provided on the front side of the guide block (71), the left end of the guide inclined groove (72) is inclined upward, and a trumpet-shaped opening is provided at the right end of the guide inclined groove (72), and the guide rod (65) cooperates with the guide inclined groove (72).

Images