CN117184553A

CN117184553A - Automatic bag supplying method of packaging machine

Info

Publication number: CN117184553A
Application number: CN202311183871.7A
Authority: CN
Inventors: 赵亮
Original assignee: Jiangsu Hagong Drug Machine Technology Co ltd
Current assignee: Jiangsu Hagong Drug Machine Technology Co ltd
Priority date: 2023-09-14
Filing date: 2023-09-14
Publication date: 2023-12-08

Abstract

The invention discloses an automatic bag supplying method of a packaging machine, S1, an automatic bag supplying machine is provided; s2, placing the packaging bag on a material supplementing station; s3, a bag feeding push rod extends out of the bag feeding longitudinal strip-shaped hole and pushes the packaging bag on the material supplementing station to the sucking station for holding; s4, descending a lifting sucker to suck and lift the packaging bag, and moving the packaging bag to a bag supplying station; s5, the supporting device acts to support the bottom of the packaging bag; s6, enabling the opening mechanism to act so as to open the bag opening; s7, deflecting a bag opening shaft, and hooking a bag opening claw in a bag opening; s8, clamping the edge of the bag mouth from the side face; s9, loosening the packaging bag by the lifting sucker and resetting; s10, rotating the turnover main shaft, and feeding the bag mouth upwards to a bag clamping mechanism of the bag filling machine; s11, deflecting the bag opening shaft to reversely deflect, and separating the bag opening claw hook from the bag opening; s12, turning the main shaft to reset; the method can accurately and automatically enable the packaging bag to be sucked and turned over for bagging, and automatically feed the packaging bag, so that the production efficiency is improved.

Description

Automatic bag supplying method of packaging machine

Technical Field

The invention relates to the technical field of packaging equipment, in particular to an automatic bag supplying method of a packaging machine.

Background

The packaging bag is a flexible transportation packaging container, has the advantages of moisture resistance, dust resistance and the like, and can contain materials which are not easy to convey, so that the packaging bag is convenient to assemble, disassemble and transport.

To improve packaging efficiency, an automatic device is required to be used in combination, and an automatic packaging machine is described in a publication of patent No. 202320276692.7, comprising: a frame; the bag supplying device is arranged at one side of the frame and is suitable for placing a rubber bag; the bag taking device is vertically arranged on the rack and is positioned above the bag supplying device; after being suitable for adsorbing the rubber bag, the bag mouth of the rubber bag is upwards transferred to a feeding station; the bag clamping device is arranged on the frame, aligned or approximately aligned with the bag opening of the rubber bag and arranged along the central axis of the bag opening of the rubber bag; two vertex angles at the bag mouth of the rubber bag are suitable for clamping and fixing; the bag opening device is arranged on the frame, aligned or approximately aligned with the bag opening of the rubber bag and positioned at two sides of the central axis of the bag opening of the rubber bag; is suitable for opening the mouth of the rubber bag; the packaging method using the automatic packaging machine suffers from the following drawbacks: 1. when the packaging bags with different sizes are used for conveying, the position of the bag bin cannot be changed, so that the packaging bag can not be well matched with different packaging bags, and the bag supplying effect is poor; 2. the baffle plate is driven by the linear module to linearly move back and forth along the groove, so that a larger linear module is needed to ensure the moving range, the integral structure size is influenced, and the use cost is increased; 3. when sucking the packaging bags, the sucking discs are fixedly installed, and when sucking the packaging bags with different sizes, the positions of the sucking discs cannot be adjusted to accurately suck the packaging bags; 4. the bag taking device absorbs the upper part of the packaging bag, and the lower part of the packaging bag is not provided with a supporting structure which is effectively supported in the ascending process, so that the subsequent bag clamping is affected; 5. the rotary clamping plates are fixed, and when the packaging bag needs to be clamped, the packaging bag needs to be lifted, the packaging bag contacts with the second clamp on the rotary shift, and the clamping is uneven during clamping, so that the follow-up processing is affected.

Disclosure of Invention

The technical problems to be solved by the invention are as follows: the automatic bag feeding method of the packaging machine can accurately and automatically enable the packaging bag to be sucked, turned and sleeved, automatically feed the packaging bag and improve production efficiency.

In order to solve the technical problems, the technical scheme of the invention is as follows: an automatic bag supplying method of a packaging machine, comprising the following steps:

s1, providing an automatic bag feeding machine, wherein the automatic bag feeding machine comprises a frame, a bag supporting plate is arranged on the frame, a transverse limiting structure for transversely limiting a packaging bag is arranged on the bag supporting plate, a longitudinal positioning structure for longitudinally positioning the packaging bag is arranged on the bag supporting plate, a placing area for placing the packaging bag is formed by the transverse limiting structure and the longitudinal limiting structure, a material supplementing station and a sucking station are arranged on the placing area, a longitudinally moving bag feeding longitudinal sliding seat is arranged on the frame, a bag feeding push rod is installed on the bag feeding longitudinal sliding seat in an ascending and descending mode, at least two bag feeding longitudinal strip-shaped holes extending from the material supplementing station to the sucking station are formed in the bag supporting plate, the bag feeding push rod penetrates through the bag supporting plate and is restrained in the bag feeding longitudinal strip-shaped holes, and the bag feeding push rod drives the bag feeding longitudinal sliding seat to reciprocate between the material supplementing station and the sucking station through a bag feeding lifting power device, and the bag feeding push rod is driven to lift by a bag feeding lifting power device to enable the bag feeding push rod to be higher than or lower than a supporting surface of the bag supporting plate;

The automatic packaging machine is characterized in that a bag conveying device is further arranged on the frame, the bag conveying device comprises a bag conveying lifting power supporting seat fixedly arranged on the frame, a bag conveying lifting power device is arranged on the bag conveying lifting power supporting seat, a bag conveying connecting plate is arranged below the bag conveying lifting power supporting seat, the bag conveying connecting plate is driven to lift by the bag conveying lifting power device, a bag conveying longitudinal power supporting seat is fixedly arranged below the bag conveying connecting plate, a bag conveying longitudinal power device is fixedly arranged on the bag conveying longitudinal power supporting seat, a bag conveying longitudinal sliding frame is longitudinally slidably arranged on the bag conveying connecting plate, the bag conveying longitudinal sliding frame longitudinally slides between a suction station and a bag supplying station by the bag conveying longitudinal power device, a bag conveying installation frame is fixedly arranged below the bag conveying longitudinal sliding frame, a plurality of lifting sucking discs for sucking the packaging bags are arranged on the bag conveying installation frame, the lifting sucking discs are communicated with an air suction system, and a supporting device for supporting the bottom of the packaging bags is also arranged on the frame;

the bag opening turnover device is arranged on the rack and positioned at the bag supplying station; the bag opening turnover device comprises a turnover main shaft which is rotatably arranged on a frame and is positioned above a bag supply station, a bag opening installation seat is fixedly arranged in the middle of the turnover main shaft, a bag opening shaft is rotatably arranged on the bag opening installation seat, bag opening claws are arranged at two ends of the bag opening shaft, the bag opening shaft is driven to rotate by a bag opening deflection adjusting device, a first swing clamping device and a second swing clamping device which are used for tensioning and clamping two ends of a packaging bag are also arranged at two ends of the turnover main shaft, the turnover main shaft is driven to rotate by a main deflection adjusting device, and an opening mechanism which is used for sucking the lower part of a bag opening of the packaging bag and is arranged below the bag opening claws on the frame so as to enable the lower part of the bag opening of the packaging bag to be opened;

S2, placing the stacked stack of packaging bags on a material supplementing station of a bag supporting plate;

s3, a bag feeding push rod is driven by a bag feeding lifting power device to extend out of the bag feeding longitudinal strip-shaped hole, and a bag feeding longitudinal sliding driving device is used for pushing and holding the packaging bag on the material supplementing station to the suction station;

s4, driving a lifting sucker at a suction station to descend by a bag feeding lifting power device to suck and lift a first packaging bag at an upper layer, and driving a bag feeding longitudinal sliding frame to move from the suction station to a bag feeding station by a bag feeding longitudinal power device;

s5, the supporting device acts to support the bag bottom of the packaging bag at the bag supplying station;

s6, the opening mechanism acts to suck the bottom of the bag mouth of the packaging bag on the lifting sucker and moves downwards to open the bag mouth;

s7, driving the bag opening shaft to deflect by the bag opening deflection adjusting device so that the bag opening claw is hooked in the bag opening of the packaging bag;

s8, the first swing clamping device and the second swing clamping device act to clamp the edge of the bag mouth of the packaging bag from the side face;

s9, loosening the packaging bag by the lifting sucker and horizontally resetting;

s10, driving the turning main shaft to rotate by the main deflection adjusting device, so that the bag opening hook claw, the first swing clamping device and the second swing clamping device clamp the packaging bag to deflect 90 degrees, and continuously supporting the bag bottom of the packaging bag by the supporting device in the process of deflecting the turning main shaft; finally, the bag mouth of the packaging bag is upwards fed to a bag clamping mechanism of a bag filling machine, and bag feeding is completed;

S11, driving the bag opening shaft to deflect reversely by the bag opening deflection adjusting device to enable the bag opening claw hook to be separated from the bag opening of the packaging bag, and resetting the supporting device to avoid a space for sucking the packaging bag by the lifting sucker;

s12, after the first swing clamping device and the second swing clamping device loosen the packaging bag, the main deflection adjusting device drives the turnover main shaft to rotate and reset;

s13, repeating the steps S4 to S12, and feeding the packaging bags to a bag clamping mechanism of a bag filling machine one by one;

s14, in the process of supplying the last packaging bag of the stack of packaging bags, placing a new stack of packaging bags on a material supplementing station of a bag supporting plate;

s15, the bag supplying push rod is driven by the bag supplying lifting power device to be lowered on the bag supporting plate, and then the bag supplying longitudinal sliding driving device moves the bag supplying push rod from the suction station to the material supplementing station; and (3) repeating the step (S3) to complete the material supplementing of the packaging bags after the last packaging bag is sucked and lifted by the lifting sucker.

As a preferable scheme, the driving mode of the bag feeding longitudinal sliding driving device for driving the bag feeding push rod is as follows: the first bag supplying connecting rod and the second bag supplying connecting rod are hinged to each other, the length of the first bag supplying connecting rod is longer than that of the second bag supplying connecting rod, one end of the first bag supplying connecting rod is hinged to the longitudinal bag supplying sliding seat, the first bag supplying connecting rod is hinged to the frame, the longitudinal bag supplying sliding driving device is a linear bag supplying power device, the linear bag supplying power device is hinged to the middle of the frame and the first bag supplying connecting rod, the linear bag supplying connecting rod is driven to swing through linear movement of the linear bag supplying power device, and the second bag supplying connecting rod is further enabled to swing to drive the longitudinal bag supplying sliding seat to slide.

As a preferable scheme, the position of the lifting sucker is adjustable in the transverse position and the longitudinal position.

As a preferable scheme, the vertical sliding frame is provided with a bag sucking limiting structure for limiting the descending position of the lifting sucker, when the lifting sucker is driven to descend, the lifting sucker firstly contacts the upper surface of the uppermost packaging bag and then vacuumizes, and the lifting sucker continuously descends to squeeze the uppermost packaging bag, and when the bag sucking limiting structure contacts the upper surface of the uppermost packaging bag, the extrusion force between the lifting sucker and the uppermost packaging bag reaches the maximum allowable value.

In a preferred embodiment, in step S8, the first swing clamp and the second swing clamp are biased laterally toward the bag to clamp the edge of the bag, and then biased outwardly to stretch and tension the bag horizontally.

As a preferable scheme, the first swing clamping device and the second swing clamping device are limited by the bag clamping limiting jacking block in limiting positions when outwards swinging.

After the technical scheme is adopted, the invention has the following effects: the automatic bag feeding method for the packaging machine comprises the following steps:

s15, the bag supplying push rod is driven by the bag supplying lifting power device to be lowered on the bag supporting plate, and then the bag supplying longitudinal sliding driving device moves the bag supplying push rod from the suction station to the material supplementing station; repeating the step S3 to complete the material supplementing of the packaging bags after the last packaging bag is sucked and lifted by the lifting sucker; according to the method, the packaging bags are effectively stacked on the feeding station, the packaging bags can be effectively pushed to the suction station through the push rod, then the lifting sucker on the suction station can sequentially lift and suck the packaging bags through the bag conveying lifting power device, the bag conveying longitudinal power device drives the bag conveying longitudinal sliding frame to move the sucked packaging bags to the bag supplying station, meanwhile, the supporting device supports, then the opening mechanism on the bag supplying station is matched with the opening mechanism to open the bag mouth, the bag opening claw can swing and extend into the bag mouth conveniently, the first swing clamping device and the second swing clamping device clamp the two sides of the packaging bags, so that the packaging bags can form three-point fixed stable openings, the bag clamping mechanism of the bag filling machine can be supplied conveniently, and the bag supplying can be repeated continuously, and the efficiency is high.

The driving mode of the bag feeding push rod driven by the bag feeding longitudinal sliding driving device is as follows: the bag feeding first connecting rod and the bag feeding second connecting rod are mutually hinged, the length of the bag feeding first connecting rod is longer than that of the bag feeding second connecting rod, one end of the bag feeding first connecting rod is hinged on the bag feeding longitudinal sliding seat, the bag feeding first connecting rod is hinged on the frame, the bag feeding longitudinal sliding driving device is a bag feeding linear power device, the bag feeding linear power device is hinged at the middle parts of the frame and the bag feeding first connecting rod, the bag feeding linear power device is utilized to drive the bag feeding first connecting rod to swing in a linear mode, and further the bag feeding second connecting rod swings to drive the bag feeding longitudinal sliding seat to slide; the deflection of the bag feeding second connecting rod can be driven through the deflection of the bag feeding first connecting rod, and the swing distance of the bag feeding first connecting rod driven by the bag feeding linear power device can be enlarged through the cooperation of the bag feeding first connecting rod and the bag feeding second connecting rod, so that the bag feeding linear power device can meet the moving distance required by the bag feeding longitudinal sliding seat without linear movement for a long distance, and the efficiency is improved.

The position of the lifting sucker is adjustable in the transverse position and the longitudinal position; the position of the lifting sucker can be adjusted to adapt to packaging bags of different sizes, the packaging bags can be accurately sucked, and the sucking firmness and accuracy are improved.

And because the bag sucking limiting structures for limiting the descending positions of the lifting suckers are distributed on the longitudinal sliding frame, when the lifting sucker is driven to descend, the lifting sucker firstly contacts the upper surface of the packaging bag on the uppermost layer and then vacuumizes, and the lifting sucker continuously descends to extrude the packaging bag on the uppermost layer, and when the bag sucking limiting structures contact the upper surface of the packaging bag on the uppermost layer, the extrusion force between the lifting sucker and the packaging bag on the uppermost layer reaches the maximum allowable value, so that the lifting sucker can be effectively ensured to accurately and effectively suck one packaging bag when sucking each time, and the sucking accuracy is ensured.

In step S8, the first swing clamping device and the second swing clamping device deflect from the side surface to the packaging bag to clamp the edge of the opening of the packaging bag, and then deflect outwards to horizontally stretch and tension the packaging bag, so that the opening of the packaging bag can be formed into an opening in a tight state through the first swing clamping device, the second swing clamping device and the bag opening claw, the opening is further ensured to be accurate, and the subsequent bag supply is facilitated.

And because the limit positions of the bag clamping limit jacking blocks are limited when the first swing clamping device and the second swing clamping device deflect outwards, the deformation or tearing of the packaging bag caused by excessive deflection of the first swing clamping device and the second swing clamping device is prevented, and the bag feeding quality is prevented from being influenced.

Drawings

The invention will be further described with reference to the drawings and examples.

FIG. 1 is a schematic diagram of an embodiment of the present invention;

FIG. 2 is a top view of a bag supply apparatus according to an embodiment of the present invention;

FIG. 3 is a front view of a bag supply apparatus according to an embodiment of the present invention;

FIG. 4 is a view in the A direction of FIG. 3;

FIG. 5 is a front view of a bag feeding apparatus according to an embodiment of the present invention

FIG. 6 is a left side view of a bag feeding apparatus according to an embodiment of the present invention;

FIG. 7 is a view in the B direction of FIG. 6;

FIG. 8 is a schematic view of a supporting device according to an embodiment of the present invention;

FIG. 9 is a front view of a bag opening and flipping device according to an embodiment of the present invention;

FIG. 10 is a schematic view of a bag opening and turning device according to an embodiment of the present invention;

FIG. 11 is a left side view of an embodiment of the bag opening and flipping device of the present invention;

FIG. 12 is a partial enlarged view at C of FIG. 9;

in the accompanying drawings: 101. a frame; 102. a bag support plate; 103. a longitudinal slide seat for the bag; 104. a bag feeding push rod; 105. a material supplementing station; 106. a suction station; 107. a bag feeding longitudinal slide rail; 108. a bag supply slide plate; 109. a bag-feeding sliding roller; 110. a longitudinal strip-shaped hole for the bag; 111. the bag supplying longitudinal adjusting through groove; 112. a bag pushing rod adjusting screw; 113. a first bag feed link; 114. a bag supply second connecting rod; 115. a bag feeding straight line cylinder; 116. fixing a transverse baffle; 117. a movable transverse baffle; 118. a transverse limit strip-shaped through groove; 119. a bag supplying lifting cylinder; 120. a first sliding positioning plate; 121. a second sliding positioning plate; 122. a first adjusting through groove; 123. a second adjusting through groove; 124. a bag supplying push plate; 125. a bag supply connecting plate; 126. a movable notch;

201. A support arm; 202. a bag feeding lifting power support seat; 203. a bag feeding lifting guide rod; 204. a bag feeding lifting rotating roller; 205. a bag feeding lifting cylinder; 206. a bag feeding connecting plate; 207. a bag feeding longitudinal power support seat; 208. a bag feeding longitudinal guide rod; 209. a bag feeding fixed shaft sleeve; 210. a bag feeding fixing frame; 211. a bag feeding longitudinal cylinder; 212. a bag feeding synchronizing rod; 213. the first bag feeding installation frame; 214. a bag feeding transverse connecting rod; 215. a bag feeding longitudinal connecting rod; 216. feeding a bag and transversely forming a strip-shaped through groove; 217. feeding a bag into a longitudinal strip-shaped through groove; 218. a second bag feeding mounting rack; 219. strip-shaped through grooves with bag feeding openings; 220. sending a bag screw; 221. lifting the sucker; 222. a suction bag limiting top block; 223. supporting the swing arm; 224. a supporting plate; 225. supporting and swinging a connecting block; 226. supporting a linear cylinder; 227. an air extraction system; 228. an air blowing system; 229. a bag supplying station;

301. turning over the main shaft; 302. opening a bag mounting seat; 303. a bag opening shaft; 304. opening a bag hook claw; 305. a bag opening deflection connecting rod; 306. a straight line cylinder for opening the bag; 307. a first clamping mount; 308. a first clamping link; 309. the second clamping installation seat; 310. a second clamping link; 311. a first bag clamping claw; 312. a second bag clamping claw; 313. a first bag clamping straight cylinder; 314. a first cylinder hinged plate; 315. a second cylinder hinge plate; 316. a second bag clamping straight cylinder; 317. a first upper jaw; 318. a first lower jaw; 319. bag clamping synchronous connecting rod; 320. a bag clamping extension connecting rod; 321. a first bag clamping opening and closing cylinder; 322. a second bag clamping opening and closing cylinder; 323. a second upper jaw; 324. a second lower jaw; 325. a bag opening main deflection connecting rod; 326. a bag opening supporting seat; 327. a main straight-line cylinder for opening the bag; 328. a bag clamping fixing rod; 329. a bag clamping limiting top block; 330. a bag clamping bulge; 331. a bag opening claw connecting rod; 332. a strip-shaped through hole for opening the bag; 333. the clamping bag slides in the strip-shaped hole; 334. a bag opening adjusting screw; 335. an opening lifting frame; 336. an opening auxiliary adsorption plate; 337. an opening sucker; 338. exposing the hole; 339. an opening lifting cylinder; 340. an opening fixing seat; 341. a ventilation rod; 342. a guide spring; 343. and a spring guide rod.

Detailed Description

The present invention will be described in further detail with reference to the following examples.

As shown in fig. 1 to 12, an embodiment of the present invention discloses an automatic bag feeding method of a packaging machine, including the following steps:

s1, providing an automatic bag feeding machine, which comprises a frame 1, wherein a bag supporting plate 102 is arranged on the frame 1, a transverse limiting structure for transversely limiting a packaging bag is arranged on the bag supporting plate 102, a longitudinal positioning structure for longitudinally positioning the packaging bag is arranged on the bag supporting plate 102, a placing area for placing the packaging bag is formed by the transverse limiting structure and the longitudinal limiting structure, a feeding station 105 and a suction station 106 are arranged on the placing area, a longitudinally moving bag feeding longitudinal sliding seat 103 is arranged on the frame 1, a bag feeding push rod 104 is arranged on the bag feeding longitudinal sliding seat 103 in a lifting manner, at least two bag feeding longitudinal strip-shaped holes 110 extending from the feeding station 105 to the suction station 106 are arranged on the bag supporting plate 102, the bag feeding push rod 104 penetrates through the bag supporting plate 102 and is restrained in the bag feeding longitudinal strip-shaped holes 110, the bag feeding push rod 104 is driven by a bag feeding longitudinal sliding driving device to reciprocate between the feeding station 105 and the suction station 106, and the bag feeding push rod 104 is driven by a bag feeding lifting power device to lift or is lower than the bag supporting surface of the bag supporting plate 102;

The machine frame 1 is also provided with a bag conveying device, the bag conveying device comprises a bag conveying lifting power support seat 202 fixedly arranged on the machine frame 1, the bag conveying lifting power support seat 202 is provided with a bag conveying lifting power device, a bag conveying connecting plate 206 is arranged below the bag conveying lifting power support seat 202, the bag conveying connecting plate 206 is driven to lift by the bag conveying lifting power device, a bag conveying longitudinal power support seat 207 is fixedly arranged below the bag conveying connecting plate 206, the bag conveying longitudinal power support seat 207 is fixedly provided with a bag conveying longitudinal power device, the bag conveying connecting plate 206 is longitudinally provided with a bag conveying longitudinal sliding frame in a sliding manner, the bag conveying longitudinal sliding frame is driven to longitudinally slide between the suction station 106 and the bag supply station 229 by the bag conveying longitudinal power device, a bag conveying installation frame is fixedly arranged below the bag conveying longitudinal sliding frame, a plurality of lifting suction cups 221 for sucking the bag are arranged on the bag conveying installation frame, the lifting suction cups 221 are communicated with a suction system 227, and the machine frame 1 is also provided with a supporting device for supporting the bottom of the bag;

the frame 1 is provided with a bag opening and overturning device at the bag supplying station 229; the bag opening overturning device comprises an overturning main shaft 301 which is rotatably arranged on a frame 1 and is positioned above a bag supply station 229, a bag opening installation seat 302 is fixedly arranged in the middle of the overturning main shaft 301, a bag opening shaft 303 is rotatably arranged on the bag opening installation seat 302, bag opening claws 304 are arranged at two ends of the bag opening shaft 303, the bag opening shaft 303 is driven to rotate through a bag opening deflection adjusting device, a first swinging clamping device and a second swinging clamping device which are used for tensioning and clamping two ends of a packaging bag are also arranged at two ends of the overturning main shaft 301, the overturning main shaft 301 is driven to rotate through the main deflection adjusting device, and an opening mechanism which is arranged on the frame 1 and is positioned below the bag opening claws 304 and used for sucking the lower part of the bag opening of the packaging bag to enable the bag opening to be opened is arranged;

S2, placing the stacked stack of packaging bags on a material supplementing station 105 of a bag supporting plate 102;

s3, a bag feeding push rod 104 is driven by a bag feeding lifting power device to extend out of a bag feeding longitudinal strip-shaped hole 110, and a bag feeding longitudinal sliding driving device is used for pushing and holding the packaging bag on the material supplementing station 105 to the sucking station 106;

s4, the bag feeding lifting power device drives the lifting sucker 221 at the suction station 106 to descend so as to suck and lift the first packaging bag at the upper layer, and then the bag feeding longitudinal power device drives the bag feeding longitudinal sliding frame to move from the suction station 106 to the bag feeding station 229;

s5, the supporting device acts to support the bag bottom of the packaging bag at the bag supplying station 229;

s6, the opening mechanism acts to suck the bottom of the bag mouth of the packaging bag on the lifting sucker 221 and move downwards to open the bag mouth;

s7, driving the bag opening shaft 303 to deflect by the bag opening deflection adjusting device, so that the bag opening claw 304 is hooked in the bag opening of the packaging bag;

s9, the lifting sucker 221 is reset horizontally after loosening the packaging bag;

s10, driving the turning main shaft 301 to rotate by the main deflection adjusting device, so that the bag opening hook claw 304, the first swing clamping device and the second swing clamping device clamp the packaging bag to deflect 90 degrees, and continuously supporting the bag bottom of the packaging bag by the supporting device in the process of deflecting the turning main shaft 301; finally, the bag mouth of the packaging bag is upwards fed to a bag clamping mechanism of a bag filling machine, and bag feeding is completed;

S11, the bag opening deflection adjusting device drives the bag opening shaft 303 to deflect reversely, so that a bag opening hook claw 304 is separated from a bag opening of the packaging bag, and at the same time, the supporting device resets to avoid a space for sucking the packaging bag by the lifting sucker 221;

s12, after the first swing clamping device and the second swing clamping device loosen the packaging bag, the main deflection adjusting device drives the turnover main shaft 301 to rotate and reset;

s14, in the process of feeding the last packaging bag of the stack of packaging bags, placing a new stack of packaging bags on the feeding station 105 of the bag supporting plate 102;

s15, the bag supplying push rod 104 is driven by a bag supplying lifting power device to be lowered onto the bag supporting plate 102, and then the bag supplying longitudinal sliding driving device moves the bag supplying push rod 104 from the suction station 106 to the material supplementing station 105; repeating the step S3 to complete the material supplementing of the packaging bag after the last packaging bag is sucked and lifted by the lifting sucker 221; according to the method, the packaging bags are effectively stacked on the feeding station 105, the packaging bags can be effectively pushed to the suction station 106 through the push rod, then the lifting sucker 221 on the suction station 106 can sequentially lift and suck the packaging bags through the bag conveying lifting power device, the bag conveying longitudinal sliding frame is driven by the bag conveying longitudinal power device to move the sucked packaging bags to the bag supplying station 229, meanwhile, the supporting device supports, then the opening mechanism on the bag supplying station 229 is matched with the opening mechanism to open the bag mouth, the bag opening claw 304 can conveniently swing and extend into the bag mouth, the first swing clamping device and the second swing clamping device are connected to clamp the two sides of the packaging bags, so that the packaging bags can form three-point fixed stable openings, the bag clamping mechanism of a bag filling machine can be conveniently supplied, the bag can be continuously and repeatedly supplied, and the efficiency is high.

Preferably, the driving mode of the bag feeding push rod 104 driven by the bag feeding longitudinal sliding driving device is as follows: the bag feeding first connecting rod 113 and the bag feeding second connecting rod 114 are mutually hinged, the length of the bag feeding first connecting rod 113 is longer than that of the bag feeding second connecting rod 114, one end of the bag feeding first connecting rod 113 is hinged on the bag feeding longitudinal sliding seat 103, the bag feeding first connecting rod 113 is hinged on the frame 1, the bag feeding longitudinal sliding driving device is a bag feeding linear driving device, the bag feeding linear driving device is hinged in the middle of the frame 1 and the bag feeding first connecting rod 113, the bag feeding linear driving device is utilized to drive the bag feeding first connecting rod 113 to swing in a linear action mode, and then the bag feeding second connecting rod 114 is enabled to swing to drive the bag feeding longitudinal sliding seat 103 to slide; the deflection of the bag feeding first connecting rod 113 can be driven by the bag feeding linear power device, the deflection of the bag feeding second connecting rod 114 can be driven by the bag feeding linear power device, the swinging distance of the bag feeding first connecting rod 113 can be enlarged by the cooperation of the bag feeding first connecting rod 113 and the bag feeding second connecting rod 114, and therefore the bag feeding linear power device can meet the moving distance required by the bag feeding longitudinal sliding seat 103 without moving linearly for a long distance, the efficiency is improved, and the cost can be effectively reduced.

Preferably, the position of the lifting sucker 221 is adjustable in a transverse position and a longitudinal position; the position of the lifting sucker 221 can be adjusted to adapt to packaging bags of different sizes, the packaging bags can be accurately sucked, and the sucking firmness and accuracy are improved.

Preferably, the vertical sliding frame is provided with a bag sucking limiting structure for limiting the descending position of the lifting sucker 221, when the lifting sucker 221 is driven to descend, the lifting sucker 221 firstly contacts the upper surface of the uppermost packaging bag and then vacuumizes, and the lifting sucker 221 continuously descends to squeeze the uppermost packaging bag, and when the bag sucking limiting structure contacts the upper surface of the uppermost packaging bag, the squeezing force between the lifting sucker 221 and the uppermost packaging bag reaches a maximum allowable value; thus, the lifting sucker 221 can be effectively ensured to accurately and effectively suck one packaging bag every time when sucking, and the sucking bag limiting structure can ensure the sucking accuracy.

Preferably, in step S8, the first swing clamping device and the second swing clamping device deflect from the side surface to the packaging bag to clamp the edge of the bag mouth of the packaging bag, and then deflect to the outside to horizontally stretch and tension the packaging bag; thus, the bag mouth can be formed into an opening in a tightening state through the first swing clamping device, the second swing clamping device and the bag opening hook claw 304, so that the opening is further ensured to be accurate, and the subsequent bag supply is facilitated.

Preferably, the first swing clamping device and the second swing clamping device are limited by the bag clamping limiting top block 329 in the limit position when swinging outwards; the first swing clamping device and the second swing clamping device are prevented from being excessively deflected to cause deformation or tearing of the packaging bag, and the quality of the supplied bag is prevented from being influenced.

In addition, the embodiment of the invention also discloses an automatic bag feeding machine of a packaging machine, as shown in fig. 1 to 12, the automatic bag feeding machine of the packaging machine comprises a frame 101, a bag supporting plate 102 is arranged on the frame 101, a transverse limiting structure for transversely limiting a packaging bag is arranged on the bag supporting plate 102, a longitudinal positioning structure for longitudinally positioning the packaging bag is arranged on the bag supporting plate 102, a placing area for placing the packaging bag is formed by the transverse limiting structure and the longitudinal limiting structure, a feeding station 105 and a suction station 106 are arranged on the placing area, a longitudinally moving bag feeding longitudinal sliding seat 103 is arranged on the frame 101, a bag feeding push rod 104 is arranged on the bag feeding longitudinal sliding seat 103 in a lifting manner, at least two bag feeding longitudinal strip holes 110 extending from the feeding station 105 to the suction station 106 are arranged on the bag supporting plate 102, the bag feeding push rod 104 penetrates through the bag supporting plate 102 and is restrained in the bag feeding longitudinal strip holes 110, the bag feeding push rod 104 drives the bag feeding longitudinal sliding seat 103 to reciprocate between the feeding station 105 and the suction station 106 through a bag feeding longitudinal sliding driving device, and the bag feeding push rod 104 is driven by the bag feeding push rod 104 to be lifted or lifted by the bag feeding push rod 104 to be lifted and lowered by the bag feeding driving device 102;

The machine frame 101 is also provided with a bag conveying device, the bag conveying device comprises a bag conveying lifting power support seat 202 fixedly arranged on the machine frame 101, the bag conveying lifting power support seat 202 is provided with a bag conveying lifting power device, a bag conveying connecting plate 206 is arranged below the bag conveying lifting power support seat 202, the bag conveying connecting plate 206 is driven to lift by the bag conveying lifting power device, a bag conveying longitudinal power support seat 207 is fixedly arranged below the bag conveying connecting plate 206, the bag conveying longitudinal power support seat 207 is fixedly provided with a bag conveying longitudinal power device, the bag conveying connecting plate 206 is longitudinally provided with a bag conveying longitudinal sliding frame in a sliding manner, the bag conveying longitudinal sliding frame is driven to longitudinally slide between the suction station 106 and the bag supply station 229 by the bag conveying longitudinal power device, a bag conveying installation frame is fixedly arranged below the bag conveying longitudinal sliding frame, a plurality of lifting suction cups 221 for sucking the bag are arranged on the bag conveying installation frame, the lifting suction cups 221 are communicated with a suction system 227, and a supporting device for supporting the bottom of the packaging bag is also arranged on the machine frame 101;

the frame 101 is provided with a bag opening and overturning device at the bag supplying station 229; the bag opening turnover device comprises a turnover main shaft 301 which is rotatably arranged on a frame 101 and is positioned above a bag supply station 229, a bag opening installation seat 302 is fixedly arranged in the middle of the turnover main shaft 301, a bag opening shaft 303 is rotatably arranged on the bag opening installation seat 302, bag opening claws 304 are arranged at two ends of the bag opening shaft 303, the bag opening shaft 303 is driven to rotate by a bag opening deflection adjusting device, a first swing clamping device and a second swing clamping device which are used for tensioning and clamping two ends of a packaging bag are further arranged at two ends of the turnover main shaft 301, the turnover main shaft 301 is driven to rotate by the main deflection adjusting device, and an opening mechanism which is used for sucking the lower part of a bag opening of the packaging bag and is arranged below the bag opening claws 304 on the frame 101.

As shown in fig. 2, two longitudinal slide rails 107 for supplying bags are mounted on the frame 101, two longitudinal slide rails 107 for supplying bags are slidably mounted on the longitudinal slide rails 107 for supplying bags 103, a first longitudinal adjustment structure for supplying bags is provided between the longitudinal slide rails 108 for supplying bags 103 and the longitudinal slide rails 103 for supplying bags, a push rod 104 for supplying bags is mounted on the longitudinal slide rails 108 for supplying bags in a lifting manner, two longitudinal slide rails 107 for supplying bags are mounted on the frame 101, two sliding rollers 109 for supplying bags, which are matched with the longitudinal slide rails 107 for supplying bags, are slidably mounted on the longitudinal slide rails 107 for supplying bags, two sliding rollers 109 for supplying bags are slidably mounted on the longitudinal slide rails 107 for supplying bags, the two sliding rollers 109 for supplying bags are rotatably mounted on the longitudinal slide rails 103 for supplying bags, the corresponding sliding rollers 109 for supplying bags are provided on both sides of the longitudinal slide rails 103, when the longitudinal slide rails 103 for supplying bags are slid on the longitudinal slide rails 107 for supplying bags, a longitudinal slide holes 110 for supplying bags are provided on the longitudinal slide rails 102 for supplying bags, two sliding rods for supplying bags 104 are provided on the longitudinal slide rails 104 for supplying bags, and the longitudinal slide rails 104 for supplying bags are accurately and are provided in the longitudinal slide rails 104 for supplying bags by means of sliding along the longitudinal slide rails for supplying bags, and the longitudinal slide rails 104 for supplying bags for accurately sliding along the longitudinal slide rails 104.

Further, the first bag feeding longitudinal adjustment structure comprises a bag feeding longitudinal adjustment through groove 111 formed in the bag feeding slide plate 108, the bag feeding slide plate 108 is connected with the bag feeding longitudinal slide seat 103 through a bag feeding push rod adjusting screw 112, and the bag feeding push rod adjusting screw 112 penetrates through the bag feeding longitudinal adjustment through groove 111; the bag supplying push rod 104 is fixedly installed on the bag supplying slide plate 108 firstly, two bag supplying longitudinal adjusting through grooves 111 are formed in the two longitudinal ends of the corresponding bag supplying push rod 104, a straight line is formed in the bag supplying longitudinal adjusting through groove 111 on the bag supplying push rod 104, the two bag supplying longitudinal adjusting through grooves 111 correspond to one bag supplying longitudinal strip-shaped hole 110 in the bag supporting plate 102, the other bag supplying push rod 104 is also identical, a bag supplying push rod adjusting screw 112 is arranged on the corresponding bag supplying longitudinal adjusting through groove 111, the bag supplying push rod adjusting screw 112 is connected to the bag supplying longitudinal slide plate 103 in a threaded mode, the bag supplying slide plate 108 and the bag supplying longitudinal slide plate 103 can be fixed through the bag supplying push rod adjusting screw 112, the bag supplying slide plate 108 can slide along the bag supplying longitudinal adjusting through groove 111 through unscrewing of the bag supplying push rod adjusting screw 112, then the bag supplying push rod adjusting screw 112 can be tightly fixed through adjusting the longitudinal position of the bag supplying push rod 104, and therefore, the bag supplying slide plate 108 can be suitable for different sizes of bags, and the bag supplying structure is simple and effective.

The bag feeding longitudinal sliding driving device as shown in fig. 4 comprises a bag feeding linear power device, a bag feeding first connecting rod 113 and a bag feeding second connecting rod 114, wherein one end of the bag feeding first connecting rod 113 is hinged on the frame 101, one end of the bag feeding second connecting rod 114 is hinged on the bag feeding longitudinal sliding seat 103, the other end of the bag feeding first connecting rod 113 is hinged with the other end of the bag feeding second connecting rod 114, and the bag feeding linear power device is hinged on the frame 101 and the middle part of the bag feeding first connecting rod 113 to drive the bag feeding first connecting rod 113 to swing; the bag supplying linear power device comprises a bag supplying linear cylinder 115, wherein the base of the bag supplying linear cylinder 115 is hinged to the frame 101, and the guide rod of the bag supplying linear cylinder 115 is hinged to the rod body of the bag supplying first connecting rod 113; the bag supplying first connecting rod 113 is hinged to one lateral side of the frame 101 and swings around a hinging point, meanwhile, the bag supplying second connecting rod 114 is hinged to the bag supplying first connecting rod 113, the bag supplying second connecting rod 114 is hinged to the bag supplying longitudinal sliding seat 103, and the bag supplying longitudinal sliding seat 103 can only move linearly longitudinally, so that when the bag supplying first connecting rod 113 swings, the bag supplying second connecting rod 114 can be driven to move, the bag supplying longitudinal sliding seat 103 can be pushed to slide along a bag supplying longitudinal guide rail, and the bag supplying linear air cylinder 115 is hinged to one end of the frame 101, so that when a guide rod stretches out, the guide rod pushes the bag supplying first connecting rod 113 to swing, the pushed guide rod can swing along with the bag supplying linear air cylinder 115, the flexibility is effectively improved, and when the bag supplying first connecting rod 113 drives the bag supplying second connecting rod 114 to slide longitudinally, the extending distance of the guide rod of the bag supplying linear air cylinder 115 can be effectively enlarged, and reciprocating movement between the material supplementing station 105 and the sucking station 106 can be met without a large air cylinder; the telescopic effect of the bag feeding linear cylinder 115 is amplified, the use volume of the bag feeding linear cylinder 115 is reduced, and the cost is reduced.

In this embodiment, the lateral limiting structure includes a fixed lateral baffle 116 fixed on the bag supporting plate 102 and a movable lateral baffle 117 moving laterally, the movable lateral baffle 117 is mounted on the bag supporting plate 102 through a lateral adjustment structure, and the lateral adjustment structure is the same as the first longitudinal adjustment structure for supplying bags; the fixed transverse baffle 116 is fixed on one transverse side of a packaging bag, the bag supporting plate 102 is provided with transverse limiting strip-shaped through grooves 118 which are convenient for the movable transverse baffle 117 to slide, the transverse limiting strip-shaped through grooves 118 are three, the bag supporting plate 102 is uniformly arranged at intervals, the movable transverse baffle 117 is provided with threaded holes, the lower part of the bag supporting plate 102 is provided with transverse adjusting screws, the movable transverse baffle 117 can be fixed by tightening the transverse adjusting screws, the movable transverse baffle 117 can be adjusted by loosening the transverse adjusting screws, so that the packaging bag can be transversely limited by loosening the transverse adjusting screws, and the position of the movable transverse baffle 117 is adjusted to help limit the packaging bags with different sizes, and meanwhile, the packaging bag can be accurately and neatly moved when the bag pushing rod 104 is pushed.

In this embodiment, the longitudinal positioning structure includes a first sliding positioning plate 120 longitudinally slidably mounted on the feeding station 105 and a second sliding positioning plate 121 longitudinally slidably mounted on the suction station 106, where the first sliding positioning plate 120 positions the upstream side of the packaging bag, the first sliding positioning plate 120 is provided with a receiving slot for receiving the bag feeding push rod 104, the second sliding positioning plate 121 positions the downstream side of the packaging bag, and the first sliding positioning plate 120 and the second sliding positioning plate 121 are adjusted by a bag feeding second longitudinal adjusting structure and a bag feeding third longitudinal adjusting structure, and the bag feeding second longitudinal adjusting structure and the bag feeding third longitudinal adjusting structure are the same as the bag feeding first longitudinal adjusting structure; the second longitudinal adjustment structure for supplying bags comprises two first adjustment through grooves 122 arranged on the bag supporting plate 102, a threaded hole is formed in the first sliding positioning plate 120, a first adjustment screw penetrates through the first adjustment through grooves 122 to be in threaded connection with the threaded hole, and the longitudinal position of the first sliding positioning plate 120 can be changed by screwing or unscrewing the first adjustment screw, so that the initial pushing position of the packaging bag on the feeding station 105 is changed; the third longitudinal bag feeding adjusting structure comprises two second adjusting through grooves 123, second adjusting screws are correspondingly arranged on the second sliding and positioning plates 121 and penetrate through the second adjusting through grooves 123 in a threaded connection mode, the second sliding and positioning plates 121 can adjust the proper end positions of the packaging bags on the suction station 106, and flexibility of pushing the corresponding different packaging bags is improved.

As shown in fig. 2 and 3, the lifting power device comprises a bag feeding lifting cylinder 119, the bag feeding lifting cylinder 119 is fixedly mounted on the bag feeding slide plate 108, a movable gap 126 which is convenient for the bag feeding lifting cylinder 119 to move longitudinally is arranged on the bag feeding longitudinal slide plate 103, when the bag feeding slide plate 108 is adjusted, the bag feeding lifting cylinder 119 can change due to the change of the position of the bag feeding slide plate 108, so that the movement of the bag feeding lifting cylinder 119 can be convenient through the movable gap 126, the bag feeding push rod 104 can be controlled to descend, the bag feeding push rod 104 can be prevented from contacting with a packaging bag on the material feeding station 105 when returning to the material feeding station 105, and then the bag feeding push rod 104 ascends from the accommodating groove to continue pushing.

In this embodiment, the bag feeding push rod 104 includes a bag feeding push plate 124 contacting with the packaging bag, the bag feeding push plate 124 is connected with the guide rod of the bag feeding lifting cylinder 119 through a bag feeding connecting plate 125, the lower end of the bag feeding push plate 124 corresponds to the position of the movable notch 126, the contact area between the bag feeding push plate 124 and the packaging bag can be increased, the pushing is convenient, and the bag feeding push plate 124 stretches and contracts when the guide rod stretches and contracts, so that the bag feeding push plate 124 is not affected.

As shown in fig. 6, the bag feeding longitudinal sliding frame comprises bag feeding longitudinal guide rods 208 installed at two sides of a bag feeding longitudinal power support seat 207, the bag feeding longitudinal guide rods 208 are longitudinally and slidably installed on the bag feeding connecting plate 206, bag feeding fixing frames 210 are respectively arranged at the upstream end and the downstream end of the bag feeding longitudinal guide rods 208, the bag feeding fixing frames are installed on the bag feeding fixing frames 210, the bag feeding longitudinal power device comprises a bag feeding longitudinal air cylinder 211, the bag feeding longitudinal air cylinder 211 is installed between the bag feeding longitudinal power support seat 207 and one of the bag feeding fixing frames 210, and a bag feeding synchronous rod 212 is installed between the bag feeding fixing frames 210; because the bag feeding longitudinal power support seat 207 is fixedly arranged below the bag feeding connecting plate 206, the bag feeding longitudinal air cylinder 211 is fixedly arranged on the bag feeding longitudinal power support seat 207, the bag feeding longitudinal air cylinder 211 is longitudinally arranged in a direction, the guide rod longitudinally stretches and contracts, two bag feeding fixing shaft sleeves 209 are symmetrically arranged on two sides of the bag feeding longitudinal power support seat 207 respectively, the bag feeding fixing shaft sleeves 209 are fixedly arranged on the bag feeding connecting plate 206, and the bag feeding longitudinal guide rods 208 penetrate through the bag feeding fixing shaft sleeves 209, so that when the bag feeding longitudinal air cylinder 211 drives the bag feeding fixing frame 210 to move towards the bag feeding station 229, the bag feeding longitudinal guide rods 208 can move longitudinally, the accuracy of the longitudinal movement is ensured, the bag feeding installation frame below can be effectively supported, and the firmness of the device is improved.

As shown in fig. 7, the bag feeding mounting frame includes a first bag feeding frame 213 and a second bag feeding frame 218, the first bag feeding frame 213 and the second bag feeding frame 218 are respectively mounted on two lateral sides of the upstream bag feeding frame 210, the first bag feeding frame 213 and the second bag feeding frame 218 are provided with a bag feeding adjusting structure for adjusting the position of a lifting sucker 221, and the downstream bag feeding frame 210 on the longitudinal bag feeding guide bar 208 is also mounted with the lifting sucker 221; because the wrapping bag is the rectangle form, need to absorb effectively in the four corners department of wrapping bag like this and just can ensure that the wrapping bag can stably absorb the removal, consequently send the wrapping bag both sides that bag first mounting bracket 213 and bag second mounting bracket 218 can correspond the upstream end respectively and absorb accurately, the wrapping bag on the downstream end is absorbed through the lift sucking disc 221 on the low reaches bag mount 210, guarantees to absorb accurately, can correspond not the wrapping bag of equidimension through sending a bag adjustment structure, improves the device flexibility.

Further, the first bag feeding mounting frame 213 and the second bag feeding frame 218 have the same structure, the first bag feeding frame 213 includes a horizontal bag feeding connecting rod 214 and a vertical bag feeding connecting rod 215, the bag feeding adjusting structure includes a vertical bag feeding strip-shaped through slot 217 formed on the vertical bag feeding connecting rod 215, the lifting sucker 221 is constrained in the vertical bag feeding strip-shaped through slot 217 and locked and fixed by a fastener, the horizontal bag feeding connecting rod 214 is provided with a horizontal bag feeding strip-shaped through slot 216, the horizontal bag feeding connecting rod 214 is fixedly mounted on the upstream bag feeding fixing frame 210 by a screw penetrating the horizontal bag feeding strip-shaped through slot 216, the vertical bag feeding connecting rod 215 is fixedly mounted on the horizontal bag feeding connecting rod 214 by a screw penetrating the vertical bag feeding strip-shaped through slot 217, the downstream bag feeding fixing frame 210 is provided with a horizontal bag feeding strip-shaped through slot 219, and the lifting sucker 221 is constrained in the horizontal bag feeding strip-shaped through slot 219 and locked and fixed by a fastener; the bag feeding second mounting frame 218 also comprises a corresponding bag feeding transverse connecting rod 214 and a bag feeding longitudinal connecting rod 215, the bag feeding longitudinal connecting rod 215 on the bag feeding second mounting frame 218 is also provided with a corresponding lifting sucker 221, which is symmetrically arranged with the bag feeding first mounting frame 213, the bag feeding transverse connecting rod 214 is arranged at two sides of the upstream bag feeding fixing frame 210, the bag feeding transverse connecting rod 214 is provided with a bag feeding transverse strip through groove 216, the fastener is a bag feeding screw 220, the bag feeding screw 220 penetrates through the bag feeding transverse strip through groove 216 and is connected with the upstream bag feeding fixing frame 210 in a threaded manner, the position of the bag feeding transverse connecting rod 214 can be adjusted along the bag feeding transverse strip through groove 216, the transverse distance can be changed, the lifting sucker 221 fixed on the bag feeding longitudinal connecting rod 215 can be adjusted transversely, and two lifting sucking discs 221 are respectively arranged on the bag conveying longitudinal connecting rod 215, the bag conveying longitudinal connecting rod 215 is also provided with a corresponding bag conveying longitudinal strip-shaped through groove 217, the lifting sucking discs 221 can effectively adjust positions along the bag conveying longitudinal strip-shaped through groove 217, transverse and longitudinal adjustment can be carried out by matching with the bag conveying transverse connecting rod 214, meanwhile, the downstream bag conveying fixing frame 210 is provided with two bag conveying opening strip-shaped through grooves 219 which are transversely symmetrically arranged, each bag conveying opening strip-shaped through groove 219 is provided with one lifting sucking disc 221, the bag conveying opening strip-shaped through grooves 219 are transversely arranged, so that the lifting sucking discs 221 can be transversely adjusted, three lifting sucking discs 221 are arranged on one side of the lifting sucking discs and can be longitudinally and transversely adjusted, after a packaging bag can be sucked, the packaging bag can smoothly move without influencing conveying.

As shown in fig. 5 and 6, the bag feeding connecting plate 206 is provided with a bag feeding lifting guide rod 203, the bag feeding lifting guide rod 203 is located at two sides of the bag feeding lifting power support seat 202, two sides of the bag feeding lifting power support seat 202 are fixedly provided with bag feeding lifting rotating rollers 204 matched with the bag feeding lifting guide rod 203, the bag feeding lifting power device comprises a bag feeding lifting cylinder 205, and a guide rod of the bag feeding lifting cylinder 205 is hinged with the bag feeding connecting plate 206; because the bag conveying lifting power supporting seat 202 is fixedly arranged on the frame 101 through the supporting arm 201, the bag conveying lifting power supporting seat 202 is supported and provided with the bag conveying lifting air cylinder 205, the guide rods of the bag conveying lifting air cylinder 205 can lift and retract, four bag conveying lifting rotating rollers 204 are respectively arranged on two sides of the bag conveying lifting power supporting seat 202, and two pairs of bag conveying lifting guide rods 203 vertically pass through the middle of the bag conveying lifting rotating rollers, when the bag conveying lifting air cylinder 205 drives the bag conveying connecting plate 206 to lift, the bag conveying lifting guide rods 203 can accurately lift and guide, the lifting sucker 221 can be effectively driven to stably lift, the accurate guiding performance is improved, and the guide rods are hinged with the bag conveying connecting plate 206 to ensure good flexibility.

In this embodiment, the bag feeding fixing frame 210 is provided with a bag sucking limiting structure for limiting the descending of the lifting suction cup 221, the bag sucking limiting structure comprises a bag sucking limiting top block 222 fixedly installed on the upstream bag feeding fixing frame 210 and on the downstream bag feeding fixing frame 210, the end part of the bag sucking limiting top block 222 is spherical, and the height of the bag sucking limiting top block 222 is smaller than that of the lifting suction cup 221, so that when the lifting suction cup 221 is sucked, the lifting suction cup 221 can be driven to the upper body after the lifting suction cup 221 is compressed until the bag sucking limiting top block 222 is contacted with a packaging bag, and the suction effect of the lifting suction cup 221 is prevented from being influenced excessively.

As shown in fig. 8, the supporting device comprises a supporting swing arm 223 hinged on a frame 101, a supporting plate 224 at the bottom of a supporting packaging bag is fixedly arranged at the free end of the supporting swing arm 223, a supporting deflection connecting block 225 is fixedly connected at the hinged position of the supporting swing arm 223, a supporting straight cylinder 226 is hinged on the frame 101, and a guide rod of the supporting straight cylinder 226 is hinged with the supporting deflection connecting block 225; the support swing arm 223 is hinged in the frame 101, the support swing arm 223 can swing back and forth by 90 degrees, the supporting plate 224 swings synchronously along with the support swing arm 223, so that the supporting plate 224 is located below a packaging bag at the downstream position, the support swing connecting block 225 is fixedly arranged at the hinged position of the support swing arm 223, the guide rod is hinged with the support swing connecting block 225, when the support straight-line cylinder 226 extends out of the guide rod, the guide rod can push the support swing connecting block 225 to swing so as to drive the support swing arm 223 to swing, the support straight-line cylinder 226 is hinged on the frame 101, and the guide rod can swing along with the support swing connecting block 225 after extending out, so that the support straight-line cylinder 226 can swing effectively, and the structure is simple and convenient to use.

As shown in fig. 10, the first swing clamping device and the second swing clamping device have the same structure, the first swing clamping device includes a first clamping mounting seat 307 fixedly mounted on the turning main shaft 301, a first clamping connecting rod 308 is mounted on the first clamping mounting seat 307 in a swing manner, and the swing center of the first clamping connecting rod 308 is perpendicular to the axis of the turning main shaft 301; the free end of the first clamping connecting rod 308 is provided with a first bag clamping claw 311 which is opened or closed, the first clamping connecting rod 308 drives a reciprocating deflection through a first bag clamping linear power device to enable the first bag clamping claw 311 to be close to or far away from two sides of a bag opening of a packaging bag, the turning main shaft 301 is provided with a bag clamping limiting structure for limiting the swinging range of the first clamping connecting rod 308, and the first bag clamping claw 311 drives a first bag clamping opening and closing power device to open and close two sides of the bag opening of the packaging bag; in order to accurately open the bag mouth of the packaging bag, after the bag opening hook claw 304 is hooked, the two sides of the bag mouth are tensioned, so that the bag mouth is effectively tensioned and opened, and thus the bag mouth is still accurately opened when the packaging bag is overturned, the first clamping connecting rod 308 is driven by the first clamping straight line power device to lean against one side of the bag mouth of the packaging bag, then the first clamping claw 311 is driven by the first clamping connecting rod 308 to clamp the packaging bag, and then the first clamping connecting rod 308 is far away from the bag mouth side, the second swinging clamping device is also similar, so that the bag mouth of the packaging bag can be effectively opened, the second swinging device comprises a second clamping installation seat 309, a second clamping connecting rod 310 is arranged on the second clamping installation seat 309 in a swinging manner, the free end of the second clamping connecting rod 310 is also provided with a second clamping claw 312 for opening or closing, the second clamping connecting rod 310 is driven by the second clamping straight line power device to swing back and forth, and the second clamping claw 312 is driven by the second clamping bag opening and closing power device to open and close; the first bag clamping linear power device comprises a first bag clamping linear cylinder 313, a first cylinder hinge plate 314 and a second cylinder hinge plate 315 are fixedly arranged on the turnover main shaft 301, the first bag clamping linear cylinder 313 is hinged to the first cylinder hinge plate 314, a guide rod of the first bag clamping linear cylinder 313 is hinged to the upper portion of the first clamping connecting rod 308, the first bag clamping linear cylinder 313 conveniently drives the first clamping connecting rod 308 to swing when swinging, the second bag clamping linear power device also comprises a second bag clamping linear cylinder 316, the second cylinder hinge plate 315 is hinged to the second bag clamping linear cylinder 316, and a guide rod of the second bag clamping linear cylinder 316 is hinged to the upper portion of the second clamping connecting rod 310.

As shown in fig. 12, the first bag clamping jaw 311 includes a first upper jaw 317 and a first lower jaw 318, the first upper jaw 317 and the first lower jaw 318 are respectively hinged on the first clamping link 308, the first upper jaw 317 is hinged with a power end of the first bag clamping and opening power device, the first upper jaw 317 is driven to swing by the first bag clamping and opening power device, a bag clamping synchronous link 319 is hinged between the first upper jaw 317 and the first lower jaw 318, and the first upper jaw 317 drives the first lower jaw 318 to swing synchronously by the bag clamping synchronous link 319 when swinging; the first lower jaw 318 is provided with a bag clamping extension connecting rod 320, one end of a bag clamping synchronous connecting rod 319 is hinged with a first upper jaw 317, the other end of the bag clamping synchronous connecting rod 319 is hinged with the bag clamping extension connecting rod 320, the bag clamping extension connecting rod 320 is provided with a bag clamping sliding strip-shaped hole 333, the hinged position of the bag clamping extension connecting rod 320 and the first lower jaw 318 can be slidably hinged, the first bag clamping opening and closing power device comprises a first bag clamping opening and closing cylinder 321, the first bag clamping opening and closing cylinder 321 is hinged and installed in the middle of the first clamping connecting rod 308, after the guide rod of the first bag clamping opening and closing cylinder 321 is hinged with the first upper jaw 317, when the first upper jaw 317 swings upwards, the bag clamping synchronous connecting rod 319 swings upwards, so that the bag clamping extension connecting rod 320 is driven to swing upwards, the first lower jaw 317 and the first lower jaw 318 are controlled to be opened and closed by a power device, so that the cost is saved, and the practicability is improved; the second bag clamping and opening and closing power device comprises a second bag clamping and opening and closing air cylinder 322, the second bag clamping and opening and closing air cylinder 322 is hinged to the middle of the second clamping connecting rod 310, a guide rod of the second bag clamping and opening and closing air cylinder 322 is hinged to the second upper claw 323, and a bag clamping synchronous connecting rod 319 is also arranged between the second upper claw 323 and the second lower claw 324, so that the second upper claw 323 and the second lower claw 324 can be controlled to swing, and the practicability is improved.

In this embodiment, the main deflection adjusting device includes a bag opening main deflection connecting rod 305 fixedly connected with the turning main shaft 301, a bag opening supporting seat 326 for conveniently rotating and installing the turning main shaft 301 is provided on the frame 101, a main linear power device is hinged between the bag opening main deflection connecting rod 325 and the frame 1, and the main linear power device drives the bag opening main deflection connecting rod 325 to swing; the main linear power device comprises a bag opening main linear cylinder 327, the bag opening main linear cylinder 327 is vertically hinged on the frame 101, a guide rod of the bag opening main linear cylinder 327 is hinged with a bag opening main deflection connecting rod 325, so that the bag opening main deflection connecting rod 325 can swing through the extension and retraction of the guide rod, the turning main shaft 301 can rotate, the bag opening hook claw 304, the first clamping connecting rod 308 and the second clamping connecting rod 310 which are arranged on the turning main shaft 301 can effectively deflect, and the bag opening main linear cylinder 327 can swing along with the bag opening main deflection connecting rod 325, and the whole deflection and the synchronism are improved.

In this embodiment, the bag clamping limiting structure includes a bag clamping fixing rod 328 fixedly mounted on the turning spindle 301, and a bag clamping limiting top block 329 that abuts against the outer side of the first clamping connecting rod 308 is mounted on the bag clamping fixing rod 328 in a threaded manner; one side of the second swing clamping device is also provided with a corresponding bag clamping limiting structure; thus, when the first clamping connecting rod 308 and the second clamping connecting rod 310 swing outwards, the first clamping connecting rod and the second clamping connecting rod are propped against by the corresponding bag clamping limiting jacking blocks 329, so that the bag opening of the packaging bag is prevented from being damaged due to overlarge swing amplitude, and the bag opening accuracy is ensured.

In this embodiment, the contact surfaces of the first upper claw 317 and the first lower claw 318 are provided with mutually matched bag clamping protrusions 330, and the second upper claw 323 and the second lower claw 324 are also provided with corresponding bag clamping protrusions 330, so that the clamping degree is improved when the two sides of the bag mouth of the packaging bag are clamped, and the clamping firmness is ensured.

As shown in fig. 11, two ends of the bag opening shaft 303 are fixedly provided with bag opening claw connecting rods 331, the bag opening claw 304 is mounted on the bag opening claw connecting rods 331, and the bag opening claw connecting rods 331 are provided with claw adjusting mechanisms capable of adjusting the height of the bag opening claw 304; the hook claw adjusting device comprises two bag opening strip-shaped through holes 332 formed in the bag opening hook claw connecting rod 331, bag opening adjusting screws 334 in threaded connection with the bag opening hook claw 304 are arranged in the bag opening strip-shaped through holes 332, the height positions of the bag opening hook claw 304 can be adjusted by unscrewing or tightening the bag opening adjusting screws 334, the bag opening can be accurately hooked by conveying packaging bags in a certain height range, flexibility of the hook claw is improved, and using effects are improved.

As shown in fig. 12, the opening mechanism comprises an opening lifting frame 335 installed on the frame 101 in a lifting and sliding manner, an opening auxiliary adsorption plate 336 is fixedly installed on the opening lifting frame 335, an opening suction cup 337 is also installed on the opening lifting frame 335, an exposing hole 338 which is convenient for exposing the opening suction cup 337 is arranged on the opening auxiliary adsorption plate 336, and an opening lifting power device for driving the opening lifting frame 335 to lift is installed on the frame 101; the opening lifting power device comprises an opening lifting cylinder 339, the opening holy sword cylinder is vertically and fixedly arranged on an opening fixing seat 340, the opening fixing seat 340 is fixedly arranged on a frame 101, a ventilation rod 341 which penetrates through an opening lifting frame 335 and is connected with an opening suction disc 337 is arranged on the opening fixing seat 340, the ventilation rod 341 is connected with an air suction system 227 to facilitate the suction of the opening suction disc 337, meanwhile, a guide spring 342 is further arranged between the opening lifting frame 335 and the opening fixing seat 340, a spring guide rod 343 is arranged in the guide spring 342, the effect of guiding accurately is effectively achieved, the exposure hole 338 can ensure that the opening suction disc 337 can accurately suck a packaging bag when the opening lifting device is used, the bag mouth of the packaging bag can also uniformly contact with the opening auxiliary suction plate 336, the packaging bag is effectively supported, and the bag opening effect is guaranteed to be good.

The corresponding air extraction system 227 and the air blowing system 228 are arranged at the top of the frame 101, the air extraction openings are formed in the lifting sucker 221 and the opening sucker 337, the air extraction openings are connected with the air extraction system 227 through air extraction pipes and vent pipes, the air extraction is convenient, meanwhile, air inlet and air outlet of each air cylinder are also needed to be controlled by a guide rod to stretch and retract, and the air extraction system 227 and the air blowing system 228 are arranged at the top to be connected with the vent pipes conveniently.

The above examples are merely illustrative of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and adaptations of the technical solution of the present invention should and are intended to fall within the scope of the present invention as defined in the claims.

Claims

1. An automatic bag supplying method of a packaging machine is characterized by comprising the following steps of: the method comprises the following steps:

2. An automatic bag feeding method of a packaging machine according to claim 1, wherein: the driving mode of the bag feeding push rod driven by the bag feeding longitudinal sliding driving device is as follows: the first bag supplying connecting rod and the second bag supplying connecting rod are hinged to each other, the length of the first bag supplying connecting rod is longer than that of the second bag supplying connecting rod, one end of the first bag supplying connecting rod is hinged to the longitudinal bag supplying sliding seat, the first bag supplying connecting rod is hinged to the frame, the longitudinal bag supplying sliding driving device is a linear bag supplying power device, the linear bag supplying power device is hinged to the middle of the frame and the first bag supplying connecting rod, the linear bag supplying connecting rod is driven to swing through linear movement of the linear bag supplying power device, and the second bag supplying connecting rod is further enabled to swing to drive the longitudinal bag supplying sliding seat to slide.

3. An automatic bag feeding method of a packaging machine as claimed in claim 2, wherein: the position of the lifting sucker is adjustable in the transverse position and the longitudinal position.

4. An automatic bag feeding method of a packaging machine as claimed in claim 3, wherein: and bag sucking limiting structures for limiting the descending position of the lifting sucker are distributed on the longitudinal sliding frame, when the lifting sucker is driven to descend, the lifting sucker firstly contacts the upper surface of the uppermost packaging bag and then vacuumizes, and the lifting sucker continuously descends to extrude the uppermost packaging bag, and when the bag sucking limiting structures contact the upper surface of the uppermost packaging bag, the extrusion force between the lifting sucker and the uppermost packaging bag reaches the maximum allowable value.

5. An automatic bag feeding method of a packaging machine according to claim 4, wherein: in step S8, the first swing clamping device and the second swing clamping device are firstly deflected from the side surface to the packaging bag to clamp the edge of the bag mouth of the packaging bag, and then deflected to the outer side to horizontally stretch and tension the packaging bag.

6. An automatic bag feeding method of a packaging machine according to claim 5, wherein: the first swing clamping device and the second swing clamping device are limited in limiting positions by the bag clamping limiting jacking blocks when outwards swinging.