CN219044452U - Bag feeding type packaging machine - Google Patents

Abstract

The bag feeding type packaging machine comprises a frame, a bag feeding frame, a bag taking mechanism, a bag feeding mechanism, a bag clamping mechanism, a heat sealing mechanism, a discharging hopper and a bag opening mechanism, wherein a bag feeding station, a feeding station and a heat sealing station are sequentially arranged on the frame from left to right, the bag taking mechanism comprises a bag taking support plate and a bag taking sucker, and the bag taking sucker is arranged on the bag taking support plate; the bag supplying frame is arranged on the frame and corresponds to the bag supplying station, the bag clamping mechanism corresponds to the feeding station, the discharging hole at the lower end of the discharging hopper corresponds to the feeding station, and the heat sealing mechanism corresponds to the heat sealing station; the bag opening mechanism comprises a bag opening supporting plate, a bag opening rear side sucker and a second reciprocating translation mechanism, the second reciprocating translation mechanism is arranged on the frame, the bag opening rear side sucker is arranged on the bag opening supporting plate, the bag opening rear side sucker is located at a feeding station, and the bag taking sucker corresponds to the bag opening rear side sucker in position when reaching the feeding station. The utility model can open the bag mouth of the packaging bag from the front side and the rear side, so that the opening of the packaging bag is smoother.

Description

Bag feeding type packaging machine

Technical Field

The utility model relates to a packaging machine, in particular to a bag feeding type packaging machine.

Background

In order to realize packaging automation, an automatic packaging machine is generally adopted to replace manual packaging, and an operator only needs to put the prepared bag at a bag taking part of the equipment, so that the equipment can automatically take the bag, move the bag, open the bag, charge and seal the bag by hot pressing. For example, a full-automatic bag feeding type packaging machine disclosed in China patent publication No. CN217396956U with the date of the grant of 09 being 2022 and the date of the grant of 09 being 20248U comprises a machine case, a lifting guide rail arranged on the machine case, a bag feeding mechanism arranged on the lifting guide rail, a traversing mechanism arranged in the machine case and positioned on the side surface of the lifting guide rail, a traversing table arranged on the traversing mechanism, a bag taking mechanism arranged on the traversing table, a bag moving mechanism arranged on the traversing table and positioned on the side surface of the bag taking mechanism, an included angle mechanism arranged on the machine case, and a hot-press edge sealing mechanism arranged on the side surface of the included angle mechanism; the bag taking mechanism comprises a telescopic cylinder, a first connecting plate arranged on the telescopic cylinder, a first connecting rod arranged on the first connecting plate, a second connecting plate arranged at the tail end of the first connecting rod, a T-shaped plate arranged on the second connecting plate, bag taking suction cups symmetrically arranged on the T-shaped plate, and an opening suction cup arranged on the T-shaped plate and positioned in the middle of the bag taking suction cups.

When the bag taking mechanism sucks the packaging bag to the included angle mechanism, the two corners of the packaging bag are clamped by the included angle mechanism, then the bag taking sucker is loosened, the opening sucker in the middle of the bag taking sucker continues to adsorb, and the telescopic cylinder contracts, so that the opening sucker is far away from the packaging bag, the middle of the bag opening of the packaging bag is pulled to one side, and the opening of the packaging bag is realized. Although this kind of opening sucking disc can open the wrapping bag, when the opening sucking disc is kept away from the wrapping bag, always pull to one side to the sack middle part of wrapping bag, if the static electricity of wrapping bag sack is too big, the sack of wrapping bag can closely stick because of static electricity, even utilize the opening sucking disc to pull to one side with the sack middle part of wrapping bag, still can not open the sack of wrapping bag smoothly.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a bag feeding type packaging machine which can open the bag opening of a packaging bag from the front side and the rear side so that the opening of the packaging bag is smoother. The technical scheme adopted is as follows:

the bag feeding type packaging machine comprises a frame, a bag feeding frame, a bag taking mechanism, a bag conveying mechanism, a bag clamping mechanism, a heat sealing mechanism and a discharging hopper, wherein a bag feeding station, a feeding station and a heat sealing station are sequentially arranged on the frame from left to right, and a left-right translation mechanism capable of driving the bag taking mechanism to switch between the bag feeding station and the feeding station and driving the bag conveying mechanism to switch between the feeding station and the heat sealing station is arranged on the frame; the bag taking mechanism comprises a bag taking supporting plate and at least one bag taking sucker, the bag taking sucker is arranged on the bag taking supporting plate, and a first reciprocating translation mechanism capable of driving the bag taking supporting plate to reciprocate back and forth is arranged on the left-right translation mechanism; the bag feeding frame is arranged on the frame and corresponds to the bag feeding station, the bag clamping mechanism is arranged on the frame and corresponds to the charging station, the discharging hopper is arranged on the frame, the discharging hole at the lower end of the discharging hopper corresponds to the charging station, and the heat sealing mechanism is arranged on the frame and corresponds to the heat sealing station; the method is characterized in that: the bag feeding type packaging machine further comprises a bag opening mechanism, the bag opening mechanism comprises a bag opening supporting plate, at least one bag opening rear side sucker and a second reciprocating translation mechanism capable of driving the bag opening supporting plate to reciprocate back and forth, the second reciprocating translation mechanism is installed on the frame, the bag opening rear side sucker is installed on the bag opening supporting plate, the bag opening rear side sucker is located at the feeding station, and the bag taking sucker corresponds to the bag opening rear side sucker in position when reaching the feeding station.

The bag taking mechanism and the bag feeding mechanism are driven by the left-right translation mechanism to translate rightwards synchronously, the bag taking mechanism conveys the packaging bags taken down at the bag supplying station to the feeding station, and the bag feeding mechanism conveys the packaging bags with the bag opening and feeding completed at the feeding station to the heat sealing station; then the left-right translation mechanism drives the bag taking mechanism and the bag feeding mechanism to synchronously translate left, so that the bag taking mechanism returns to the bag supplying station, and the bag feeding mechanism returns to the feeding station; and the cycle is operated in this way.

At the bag supplying station, the bag taking mechanism moves to the bag supplying frame to take bags, so that single packaging bags are sucked out; then the left-right translation mechanism sends the bag taking mechanism and the sucked packaging bag to a feeding station, when two corners of the packaging bag are clamped by the bag clamping mechanism, a bag opening rear side sucker on the bag opening supporting plate is abutted with the bag opening rear side surface of the packaging bag and is sucked tightly, and the bag taking sucker still sucks the bag opening front side surface of the packaging bag; then the second reciprocating translation mechanism drives the back side sucking disc of the bag opening on the bag opening supporting plate to be backwards far away from the packaging bag, and meanwhile, the first reciprocating translation mechanism drives the bag taking sucking disc to be forwards far away from the packaging bag, so that the bag opening of the packaging bag is pulled forwards and backwards, the bag opening of the packaging bag is opened from the front side and the rear side, the discharging of the hopper is facilitated, at the moment, the back side sucking disc of the bag opening and the bag taking sucking disc are both loosened (then the left and right translation mechanism can drive the bag taking mechanism to return to a bag supplying station); in the feeding process of the discharging hopper, the bag clamping mechanism still clamps two corners of the packaging bag. After the feeding is completed, the bag feeding mechanism moves to the feeding station to clamp and fix the packaging bag, then the bag clamping mechanism loosens two corners of the packaging bag, and the left-right translation mechanism drives the bag taking mechanism to move synchronously with the bag feeding mechanism, so that the bag taking mechanism conveys another packaging bag to the feeding station, the bag feeding mechanism moves the clamped packaging bag to the heat sealing station, and the heat sealing mechanism is used for heat sealing the bag opening of the packaging bag (then the left-right translation mechanism can drive the bag feeding mechanism to return to the feeding station).

Generally, the specific structures of the bag feeding mechanism, the bag clamping mechanism (including angle mechanism), the left-right translation mechanism (lateral translation mechanism and lateral translation platform) and the first reciprocating translation mechanism (telescopic cylinder 61+first connecting plate 62+first connecting rod 63+second connecting plate 64, t-shaped plate 65 corresponds to the bag taking support plate) can be the corresponding specific structures of a bag feeding type full-automatic packaging machine disclosed in China patent publication No. CN217396956U, wherein the date of the grant notice is 2022, 09, and the date of the grant notice is.

In the preferred scheme, the bag opening mechanism further comprises at least one bag body front side sucker and at least one bag body rear side sucker, the bag body rear side sucker is installed on the bag opening supporting plate and located below the bag opening rear side sucker, the bag body front side sucker is installed on the bag taking supporting plate and located below the bag taking sucker, and the bag body front side sucker corresponds to the bag body front side sucker. When the bag taking mechanism moves to the bag supplying frame to take bags at the bag supplying station, the bag taking sucker sucks the front side face of the bag mouth of the packaging bag, and the sucker at the front side of the bag body sucks the front side face of the bag body of the packaging bag. When the bag taking mechanism moves to a feeding station from a packaging bag taken out of a bag supplying frame, a bag opening rear side sucker and a bag body rear side sucker on a bag opening supporting plate are abutted against the rear side surface of the packaging bag, the bag opening rear side sucker and the bag body rear side sucker of the packaging bag are utilized to suck the bag opening rear side surface of the packaging bag, and meanwhile, the bag taking sucker and the bag body front side sucker on the bag taking mechanism are abutted against the front side surface of the packaging bag, and the bag opening front side surface of the packaging bag and the bag body front side sucker of the packaging bag are still sucked by the bag taking sucker; then the second reciprocating translation mechanism drives the bag opening back side sucker and the bag body back side sucker on the bag opening supporting plate to be backwards far away from the packaging bag, and simultaneously the first reciprocating translation mechanism drives the bag taking sucker and the bag body front side sucker on the bag taking mechanism to be forwards far away from the packaging bag, so that the bag opening and the bag body of the packaging bag are pulled forwards and backwards, the bag opening and the bag body of the packaging bag are fully unfolded, and the discharging hopper is convenient to discharge. The structure is suitable for various packaging bags, in particular to a self-standing bag or a packaging bag with larger specification.

In a further preferred scheme, the second reciprocating translation mechanism comprises a translation cylinder, at least one first guide rod and a first connecting plate, at least one first guide sleeve which runs forwards and backwards is arranged on the frame, the first guide rod is positioned in the first guide sleeve and can move forwards and backwards in the first guide sleeve, the bag opening support plate is arranged at the front end of the first guide rod, the first connecting plate is arranged at the rear end of the first guide rod, the translation cylinder is arranged on the frame, and a piston rod of the translation cylinder is arranged backwards and is connected with the first connecting plate. When a piston rod of the translation cylinder extends backwards, the first guide rod, the bag opening support plate and the suction disc at the rear side of the bag opening are driven to move backwards for a certain distance through the first connecting plate; when the piston rod of the translation cylinder is contracted forwards, the first guide rod, the bag opening support plate and the suction disc at the back side of the bag opening are driven to move forwards and backwards through the first connecting plate, so that the bag opening support plate and the suction disc at the back side of the bag opening are driven to reciprocate forwards and backwards.

In the preferred scheme, a bag supply frame height adjusting mechanism is arranged on the frame, and the bag supply frame is arranged on a power output end of the bag supply frame height adjusting mechanism. When the packaging bag with another height is replaced for packaging, the height of the bag supplying frame is adjusted through the height adjusting mechanism of the bag supplying frame, so that the bag opening of the packaging bag placed in the bag supplying frame is aligned with the bag taking sucker.

In a further preferred scheme, the height adjusting mechanism of the bag supplying frame comprises a screw, a nut, a second guide rod and a hand wheel, wherein the screw is rotatably arranged on the frame and is vertically arranged, the second guide rod is vertically arranged on the frame, a second guide sleeve which runs up and down is arranged at the rear part of the bag supplying frame, and the second guide rod is positioned in the second guide sleeve and can move up and down in the second guide sleeve; the nut is meshed with the screw rod and is connected with the rear part of the bag supply frame; the hand wheel is installed on the upper end of screw rod. The screw is rotated by rotating the hand wheel, so that the bag supply frame is driven to lift up and down along the direction of the second guide rod through the nut.

In a further preferred scheme, the bag supplying frame comprises a back plate, two wall plates, two lower supporting plates and two front baffle plates, wherein the two wall plates are respectively arranged on the left side and the right side of the back plate and are perpendicular to the back plate, the two wall plates can move left and right relative to the back plate, the left side edge of one lower supporting plate is connected with the lower side edge of the wall plate positioned on the left side, the left side edge of one front baffle plate is connected with the front side edge of the wall plate positioned on the left side, the right side edge of the other lower supporting plate is connected with the lower side edge of the wall plate positioned on the right side, and the right side edge of the other front baffle plate is connected with the front side edge of the wall plate positioned on the right side; the back plate, the two wall plates, the two lower supporting sheets and the two front baffle sheets enclose a bag placing groove, and a bag outlet of the bag placing groove is arranged forward (a gap between the two front baffle sheets forms a bag outlet). The two wall plates are respectively and movably arranged on the left side and the right side of the backboard, so that the width of the bag placing groove can be conveniently adjusted, and the bag placing groove can be used for placing packaging bags with different width specifications. A stack of packaging bags are inserted into a bag placing groove, two lower supporting sheets support lower bag corners on the left side and the right side of the whole stack of packaging bags, two front baffles block the left end and the right end of the front side of the whole stack of packaging bags, and the whole stack of packaging bags are prevented from being poured out from a bag outlet of the bag placing groove.

In a further preferred scheme, a wallboard interval adjusting mechanism is arranged on the rear side surface of the backboard, and the wallboard interval adjusting mechanism comprises a screw rod, at least one third guide rod, two nut seats and a driving device capable of driving the screw rod to rotate; the screw rod is rotatably arranged on the back plate and runs left and right, the third guide rod is arranged on the back plate and parallel to the screw rod, at least one third guide sleeve is respectively arranged on the two wall plates, and the third guide sleeve is sleeved on the third guide rod; the left section of the screw rod is provided with a positive external thread, the right section of the screw rod is provided with a reverse external thread, the two nut seats are respectively matched with the left section and the right section of the screw rod, and the two nut seats are respectively connected with the corresponding wall plates. In order to accommodate the placement of packaging bags with different width specifications, the distance between two wall plates needs to be adjusted, the screw rod is driven to rotate by the driving device, the screw rod drives the two nut seats to move along the third guide rod, and the two nut seats respectively drive the wall plates connected with each other to move, so that the distance between the two wall plates can be adjusted. In a specific scheme, the wallboard interval adjustment mechanism comprises two third guide rods, two third guide sleeves are respectively arranged on the two wallboards, the two third guide sleeves are in one-to-one correspondence with the two third guide rods, and the third guide sleeves are sleeved on the corresponding third guide rods.

The driving device can be a motor, one end of the screw rod is in transmission connection with a power output shaft of the motor, and the screw rod is driven to rotate through the motor; the driving device can also be a hand wheel, the hand wheel is arranged at one end of the screw rod, and the screw rod is driven to rotate by manually rotating the hand wheel by a user.

In a further preferred embodiment, the lower sides of the two wall panels are inclined downwards gradually from rear to front. Through this kind of setting for the bottom of putting the bag groove is also from the back to preceding slope setting gradually downwards, with a pile of wrapping bag cartridge in putting the bag groove, the wrapping bag in putting the bag groove can be from the back to preceding whereabouts to the play sack department of putting the bag groove downwards.

In still a further preferred scheme, at least two strip-shaped guide holes which gradually incline downwards from back to front are respectively arranged on the two wall plates, the strip-shaped guide holes on the two wall plates correspond to each other, rolling rods are arranged in the corresponding two strip-shaped guide holes, and the rolling rods are horizontally arranged in the bag placing groove. A stack of packaging bags are inserted into the bag placing groove, the rolling rod is positioned at the rear side of the whole stack of packaging bags, when the bag taking mechanism takes one packaging bag out of the bag placing groove, the rolling rod gradually rolls downwards from back to front along the two strip-shaped guide holes, and the rest packaging bags in the bag placing groove are pressed forwards to the bag outlet of the bag placing groove, so that the bag taking mechanism is convenient to take out the packaging bags.

In the preferred scheme, be equipped with hopper elevating system in the frame, be equipped with the elevating system on hopper elevating system's the power take off end, the lower hopper is installed on the elevating system. The position of the discharge hole of the discharging hopper is regulated by the hopper lifting mechanism, so that the discharge hole of the discharging hopper can be lowered and inserted into the bag mouth of the packaging bag on the feeding station.

In a further preferred scheme, the hopper lifting mechanism is a first cylinder, the cylinder body of the first cylinder is arranged on the frame, the piston rod of the first cylinder is arranged upwards, and the lifting seat is arranged at the tail end of the piston rod of the first cylinder.

In the preferred scheme, the heat seal mechanism includes two heat seal drive arrangement, two heat seal briquetting and two heat seal strips, and two heat seal drive arrangement are all installed in the frame, and two heat seal drive arrangement's power take off end sets up relatively, and two heat seal briquetting are installed respectively on corresponding heat seal drive arrangement's power take off end, and two heat seal strips are installed on corresponding heat seal briquetting's medial surface. When the bag feeding mechanism moves the packaging bag to the heat sealing station, the bag opening of the packaging bag is positioned between the two heat sealing strips, and the two heat sealing pressing blocks are driven by the two heat sealing driving devices to clamp the opening of the packaging bag in opposite directions, so that the two heat sealing strips clamp the opening of the packaging bag, and the opening of the packaging bag is heat-sealed. In general, the heat seal driving device is a second cylinder, the cylinder body of the second cylinder is arranged on the frame, the piston rod of the second cylinder is horizontally arranged, and the heat seal pressing block is arranged at the tail end of the piston rod of the second cylinder.

In the preferred scheme, the lower extreme of frame is equipped with ejection of compact conveyer belt, and the feed end of ejection of compact conveyer belt is in the below of heat-seal station.

Compared with the prior art, the utility model has the following advantages:

the bag opening of the packaging bag is opened from the front side and the rear side through the matching of the bag taking sucker and the back side sucker, so that the bag opening of the packaging bag can be opened more quickly, the opening is smoother, and the charging efficiency is improved.

Drawings

FIG. 1 is a schematic view (front view) of a preferred embodiment of the present utility model;

FIG. 2 is a schematic view of the bag picking mechanism and the bag opening mechanism in the preferred embodiment of the utility model;

FIG. 3 is a schematic view of the bag picking mechanism reaching the bag supplying station in the preferred embodiment of the present utility model;

FIG. 4 is a schematic view (top view) of the bag feeding mechanism reaching the feeding station in the preferred embodiment of the present utility model;

FIG. 5 is a schematic view of a mechanism for adjusting the spacing between bag holders and wall panels according to a preferred embodiment of the present utility model;

fig. 6 is a schematic view of the heat sealing mechanism in the preferred embodiment of the utility model.

Detailed Description

The utility model is described in detail below with reference to the drawings and the specific embodiments.

As shown in fig. 1-6, the bag feeding type packaging machine in the embodiment comprises a frame 1, a bag feeding frame 2, a bag taking mechanism 3, a bag feeding mechanism 4, a bag clamping mechanism 5, a heat sealing mechanism 6, a discharging hopper 7 and a bag opening mechanism 8, wherein a bag feeding station 11, a feeding station 12 and a heat sealing station 13 are sequentially arranged on the frame 1 from left to right, and a left-right translation mechanism 14 capable of driving the bag taking mechanism 3 to switch between the bag feeding station 11 and the feeding station 12 and driving the bag feeding mechanism 4 to switch between the feeding station 12 and the heat sealing station 13 is arranged on the frame 1; the bag taking mechanism 3 comprises a bag taking supporting plate 31 and two bag taking sucking discs 32, the bag taking sucking discs 32 are arranged on the bag taking supporting plate 31, and a first reciprocating translation mechanism 15 capable of driving the bag taking supporting plate 31 to reciprocate back and forth is arranged on the left-right translation mechanism 14; the bag supplying frame 2 is arranged on the frame 1 and corresponds to the bag supplying station 11, the bag clamping mechanism 5 is arranged on the frame 1 and corresponds to the charging station 12, the discharging hopper 7 is arranged on the frame 1, a lower end discharging hole of the discharging hopper 7 corresponds to the charging station 12, and the heat sealing mechanism 6 is arranged on the frame 1 and corresponds to the heat sealing station 13; the bag opening mechanism 8 comprises a bag opening supporting plate 81, two bag opening rear side suckers 82 and a second reciprocating translation mechanism 83 capable of driving the bag opening supporting plate 81 to reciprocate back and forth, the second reciprocating translation mechanism 83 is installed on the frame 1, the bag opening rear side suckers 82 are installed on the bag opening supporting plate 81, the bag opening rear side suckers 82 are located at the feeding station 12, and the bag taking sucker 32 corresponds to the bag opening rear side suckers 82 in position when reaching the feeding station 12.

The bag taking mechanism 3 and the bag feeding mechanism 4 are driven to synchronously translate rightward through the left-right translation mechanism 14, the bag taking mechanism 3 conveys the packaging bags taken down at the bag supplying station 11 to the feeding station 12, and the bag feeding mechanism 4 conveys the packaging bags with the bag opening and feeding completed at the feeding station 12 to the heat sealing station 13; subsequently, the left-right translation mechanism 14 drives the bag taking mechanism 3 and the bag feeding mechanism 4 to synchronously translate leftwards, so that the bag taking mechanism 3 returns to the bag supplying station 11, and the bag feeding mechanism 4 returns to the feeding station 12; and the cycle is operated in this way.

At the bag supplying station 11, the bag taking mechanism 3 moves to the bag supplying frame 2 for taking bags, so that single packaging bags are sucked out; then the left-right translation mechanism 14 sends the bag taking mechanism 3 and the sucked packaging bag to the feeding station 12, when two corners of the packaging bag are clamped by the bag clamping mechanism 5, the back side suction disc 82 of the bag opening support plate 81 is abutted with the back side face of the bag opening of the packaging bag and is sucked tightly, and the bag taking suction disc 32 still sucks the front side face of the bag opening of the packaging bag; then the second reciprocating translation mechanism 83 drives the bag opening rear side suction disc 82 on the bag opening supporting plate 81 to be backward far away from the packaging bag, meanwhile, the first reciprocating translation mechanism 15 drives the bag taking suction disc 32 to be forward far away from the packaging bag, and the bag opening of the packaging bag is pulled to the front side and the rear side, so that the bag opening of the packaging bag is opened from the front side and the rear side, the discharging of the discharging hopper 7 is facilitated, and at the moment, the bag opening rear side suction disc 82 and the bag taking suction disc 32 are both loosened from the packaging bag (then the left and right translation mechanism 14 can drive the bag taking mechanism 3 to return to the bag supplying station 11); during the feeding of the hopper 7, the bag clamping mechanism 5 still clamps the two corners of the packaging bag. After the feeding is completed, the bag feeding mechanism 4 moves to the feeding station 12 to clamp and fix the packaging bag, then the bag clamping mechanism 5 loosens two corners of the packaging bag, the left-right translation mechanism 14 drives the bag taking mechanism 3 to move synchronously with the bag feeding mechanism 4, the bag taking mechanism 3 sends another packaging bag to the feeding station 12, the bag feeding mechanism 4 moves the clamped packaging bag to the heat sealing station 13, and the heat sealing mechanism 6 is used for heat sealing the bag opening of the packaging bag (then the left-right translation mechanism 14 can drive the bag feeding mechanism 4 to return to the feeding station 12).

The bag opening mechanism 8 further comprises two front side suction cups 84 and two back side suction cups 85, the back side suction cups 85 are mounted on the bag opening support plate 81 and located below the back side suction cups 82, the front side suction cups 84 are mounted on the bag taking support plate 31 and located below the bag taking suction cups 32, and the front side suction cups 84 correspond to the front side suction cups 84. When the bag taking mechanism 3 moves to the bag supplying frame 2 for taking bags at the bag supplying station 11, the bag taking sucker 32 sucks the front side face of the bag mouth of the packaging bag, and the bag body front side sucker 84 sucks the front side face of the bag body of the packaging bag. When the bag taking mechanism 3 moves to the feeding station 12 from the bag supplying frame 2, the bag opening rear side sucker 82 and the bag body rear side sucker 85 on the bag opening supporting plate 81 are abutted against the rear side surface of the bag, the bag opening rear side sucker 82 is utilized to suck the bag opening rear side surface of the bag, the bag body rear side sucker 85 is utilized to suck the bag body rear side surface of the bag, meanwhile, the bag taking sucker 32 and the bag body front side sucker 84 on the bag taking mechanism 3 are abutted against the front side surface of the bag, and the bag opening front side surface of the bag is still sucked by the bag taking sucker 32, and the bag body front side sucker 84 is still utilized to suck the bag body front side surface of the bag; then the second reciprocating translation mechanism 83 drives the bag opening back side sucker 82 and the bag body back side sucker 85 on the bag opening supporting plate 81 to be far away from the packaging bag, and meanwhile, the first reciprocating translation mechanism 15 drives the bag taking sucker 32 and the bag body front side sucker 84 on the bag taking mechanism 3 to be far away from the packaging bag, so that the bag opening and the bag body of the packaging bag are pulled towards the front side and the rear side, the bag opening and the bag body of the packaging bag are fully unfolded, and the discharging hopper 7 is convenient to discharge. The structure is suitable for various packaging bags, in particular to a self-standing bag or a packaging bag with larger specification.

The second reciprocating translation mechanism 83 comprises a translation cylinder 831, two first guide rods 832 and a first connecting plate 833, two first guide sleeves 16 which run back and forth are arranged on the frame 1, the first guide rods 832 are positioned in the first guide sleeves 16 and can move back and forth in the first guide sleeves 16, the bag opening support plate 81 is mounted at the front end of the first guide rods 832, the first connecting plate 833 is mounted at the rear end of the first guide rods 832, the translation cylinder 831 is mounted on the frame 1, and the piston rods of the translation cylinders 831 are arranged backwards and are connected with the first connecting plate 833. When the piston rod of the translation cylinder 831 extends backwards, the first guide rod 832, the bag opening support plate 81 and the suction disc 82 at the back side of the bag opening are driven by the first connecting plate 833 to move backwards for a certain distance; when the piston rod of the translation cylinder 831 is contracted forward, the first guide rod 832, the bag opening support plate 81 and the bag opening rear side suction cup 82 are driven to move forward by a certain distance by the first connecting plate 833, so as to drive the bag opening support plate 81 and the bag opening rear side suction cup 82 to reciprocate forward and backward.

The frame 1 is provided with a bag supply frame height adjusting mechanism 17, and the bag supply frame 2 is arranged at the power output end of the bag supply frame height adjusting mechanism 17. When the packaging bag is replaced by a packaging bag with another height, the height of the bag feeding frame 2 is adjusted by the bag feeding frame height adjusting mechanism 17, so that the opening of the packaging bag placed in the bag feeding frame 2 is aligned with the bag taking suction cup 32.

The bag supply frame height adjusting mechanism 17 comprises a screw 171, a nut 172, a second guide rod 173 and a hand wheel 174, wherein the screw 171 is rotatably arranged on the frame 1 and is vertically arranged, the second guide rod 173 is vertically arranged on the frame 1, a second guide sleeve 21 which runs up and down is arranged at the rear part of the bag supply frame 2, and the second guide rod 173 is positioned in the second guide sleeve 21 and can move up and down in the second guide sleeve 21; the nut 172 is meshed with the screw 171, and the nut 172 is connected with the rear part of the bag supply frame 2; a handwheel 174 is mounted on the upper end of the screw 171. The screw 171 is rotated by rotating the hand wheel 174, and the nut 172 drives the bag holder 2 to move up and down along the direction of the second guide bar 173.

The bag supplying frame 2 comprises a back plate 22, two wall plates 23, two lower supporting plates 24 and two front baffle plates 25, wherein the two wall plates 23 are respectively arranged on the left side and the right side of the back plate 22 and are perpendicular to the back plate 22, the two wall plates 23 can move left and right relative to the back plate 22, the left side edge of one lower supporting plate 24 is connected with the lower side edge of the wall plate 23 positioned on the left side, the left side edge of one front baffle plate 25 is connected with the front side edge of the wall plate 23 positioned on the left side, the right side edge of the other lower supporting plate 24 is connected with the lower side edge of the wall plate 23 positioned on the right side, and the right side edge of the other front baffle plate 25 is connected with the front side edge of the wall plate 23 positioned on the right side; the back plate 22, the two wall plates 23, the two lower supporting plates 24 and the two front baffle plates 25 enclose a bag placing groove 26, and a bag outlet 261 of the bag placing groove 26 is arranged forward (a gap between the two front baffle plates 25 forms the bag outlet 261). The two wall plates 23 are respectively movably arranged on the left side and the right side of the back plate 22, so that the width of the bag placing groove 26 is convenient to adjust, and the bag placing groove 26 can be used for placing packaging bags with different width specifications. A stack of packaging bags is inserted into the bag placing groove 26, two lower supporting sheets 24 support lower bag corners on the left side and the right side of the whole stack of packaging bags, and two front baffles block the left end and the right end of the front side of the whole stack of packaging bags, so that the whole stack of packaging bags are prevented from being poured out from a bag outlet 261 of the bag placing groove 26.

The back side surface of the back plate 22 is provided with a wallboard distance adjusting mechanism 27, and the wallboard distance adjusting mechanism 27 comprises a screw rod 271, two third guide rods 272, two nut seats 273 and a driving device 274 capable of driving the screw rod 271 to rotate; the screw rod 271 is rotatably arranged on the back plate 22 and runs left and right, the third guide rod 272 is arranged on the back plate 22 and parallel to the screw rod 271, two third guide sleeves 231 are respectively arranged on the two wall plates 23, the two third guide sleeves 231 are in one-to-one correspondence with the two third guide rods 272, and the third guide sleeves 231 are sleeved on the corresponding third guide rods 272; the left section of the screw rod 271 is provided with a forward external thread, the right section of the screw rod 271 is provided with a reverse external thread, two nut seats 273 are respectively matched with the left section and the right section of the screw rod 271, and the two nut seats 273 are respectively connected with the corresponding wall plates 23. In order to accommodate the placement of packaging bags with different width specifications, the distance between the two wall plates 23 needs to be adjusted, the driving device 274 drives the screw rod 271 to rotate, the screw rod 271 drives the two nut seats 273 to move along the third guide rod 272, and the two nut seats 273 respectively drive the wall plates 23 connected with each other to move, so that the distance between the two wall plates 23 can be adjusted. The driving device 274 may be a hand wheel, which is mounted at one end of the screw 271, and the user manually rotates the hand wheel to drive the screw 271 to rotate.

The lower sides of the two wall plates 23 are gradually inclined downwards from the rear to the front. By means of the arrangement, the bottom of the bag placing groove 26 is gradually downwards inclined from back to front, a stack of packaging bags are inserted into the bag placing groove 26, and the packaging bags in the bag placing groove 26 can slide downwards from back to front to the bag outlet 261 of the bag placing groove 26.

Three strip-shaped guide holes 232 which gradually incline downwards from back to front are respectively arranged on the two wall plates 23, the strip-shaped guide holes 232 on the two wall plates 23 correspond to each other, rolling rods 233 are arranged in the corresponding two strip-shaped guide holes 232, and the rolling rods 233 are horizontally arranged in the bag placing groove 26. When the bag taking mechanism 3 takes one package bag out of the bag placing groove 26, the rolling rod 233 gradually rolls downwards along the two strip-shaped guide holes 232 from back to front, and the rest package bags in the bag placing groove 26 are pressed forwards towards the bag outlet 261 of the bag placing groove 26, so that the bag taking mechanism 3 can take out the package bags conveniently.

The frame 1 is provided with a hopper lifting mechanism 18, a power output end of the hopper lifting mechanism 18 is provided with a lifting seat 181, and the discharging hopper 7 is arranged on the lifting seat 181; the hopper lifting mechanism 18 is a first cylinder, the cylinder body of the first cylinder is arranged on the frame 1, the piston rod of the first cylinder is upwards arranged, and the lifting base 181 is arranged at the tail end of the piston rod of the first cylinder. The position of the discharge hole of the discharging hopper 7 is adjusted by the hopper lifting mechanism 18, so that the discharge hole of the discharging hopper 7 can be lowered and inserted into the mouth of the packaging bag on the feeding station 12.

The heat seal mechanism 6 comprises two heat seal driving devices 61, two heat seal pressing blocks 62 and two heat seal strips 63, wherein the two heat seal driving devices 61 are installed on the frame 1, the power output ends of the two heat seal driving devices 61 are oppositely arranged, the two heat seal pressing blocks 62 are respectively installed on the power output ends of the corresponding heat seal driving devices 61, and the two heat seal strips 63 are installed on the inner side surfaces of the corresponding heat seal pressing blocks 62. When the bag feeding mechanism 4 moves the packaging bag to the heat sealing station 13, the bag opening of the packaging bag is positioned between the two heat sealing strips 63, and the two heat sealing pressing blocks 62 are driven by the two heat sealing driving devices 61 to clamp the opening of the packaging bag in opposite directions, so that the opening of the packaging bag is heat-sealed by the two heat sealing strips 63. In general, the heat seal driving device 61 is a second cylinder, a cylinder body of the second cylinder is provided on the frame 1, a piston rod of the second cylinder is horizontally provided, and the heat seal pressing block 62 is mounted on a piston rod end of the second cylinder.

The lower end of the frame 1 is provided with a discharge conveyer belt 19, and the feed end of the discharge conveyer belt 19 is positioned below the heat sealing station 13.

In addition, it should be noted that, in the specific embodiments described in the present specification, names of various parts and the like may be different, and all equivalent or simple changes of the structures, features and principles described in the conception of the present utility model are included in the protection scope of the present utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions in a similar manner without departing from the scope of the utility model as defined in the accompanying claims.

Claims (10)

1. The bag feeding type packaging machine comprises a frame, a bag feeding frame, a bag taking mechanism, a bag conveying mechanism, a bag clamping mechanism, a heat sealing mechanism and a discharging hopper, wherein a bag feeding station, a feeding station and a heat sealing station are sequentially arranged on the frame from left to right, and a left-right translation mechanism capable of driving the bag taking mechanism to switch between the bag feeding station and the feeding station and driving the bag conveying mechanism to switch between the feeding station and the heat sealing station is arranged on the frame; the bag taking mechanism comprises a bag taking supporting plate and at least one bag taking sucker, the bag taking sucker is arranged on the bag taking supporting plate, and a first reciprocating translation mechanism capable of driving the bag taking supporting plate to reciprocate back and forth is arranged on the left-right translation mechanism; the bag feeding frame is arranged on the frame and corresponds to the bag feeding station, the bag clamping mechanism is arranged on the frame and corresponds to the charging station, the discharging hopper is arranged on the frame, the discharging hole at the lower end of the discharging hopper corresponds to the charging station, and the heat sealing mechanism is arranged on the frame and corresponds to the heat sealing station; the method is characterized in that: the bag feeding type packaging machine further comprises a bag opening mechanism, the bag opening mechanism comprises a bag opening supporting plate, at least one bag opening rear side sucker and a second reciprocating translation mechanism capable of driving the bag opening supporting plate to reciprocate back and forth, the second reciprocating translation mechanism is installed on the frame, the bag opening rear side sucker is installed on the bag opening supporting plate, the bag opening rear side sucker is located at the feeding station, and the bag taking sucker corresponds to the bag opening rear side sucker in position when reaching the feeding station.

2. The bag-feed type packaging machine of claim 1, wherein: the bag opening mechanism further comprises at least one bag body front side sucker and at least one bag body rear side sucker, the bag body rear side sucker is installed on the bag opening supporting plate and located below the bag opening rear side sucker, the bag body front side sucker is installed on the bag taking supporting plate and located below the bag taking sucker, and the bag body front side sucker corresponds to the bag body front side sucker.

3. The bag-feed type packaging machine of claim 2, wherein: the second reciprocating translation mechanism comprises a translation cylinder, at least one first guide rod and a first connecting plate, at least one first guide sleeve which runs back and forth is arranged on the frame, the first guide rod is positioned in the first guide sleeve and can move back and forth in the first guide sleeve, the bag opening support plate is arranged at the front end of the first guide rod, the first connecting plate is arranged at the rear end of the first guide rod, the translation cylinder is arranged on the frame, and a piston rod of the translation cylinder is arranged backwards and is connected with the first connecting plate.

4. The bag-feed type packaging machine of claim 1, wherein: the stand is provided with a bag supply frame height adjusting mechanism, and the bag supply frame is arranged on a power output end of the bag supply frame height adjusting mechanism.

5. The bag-feed type packaging machine of claim 4, wherein: the height adjusting mechanism of the bag supply frame comprises a screw, a nut, a second guide rod and a hand wheel, wherein the screw is rotatably arranged on the frame and is vertically arranged, the second guide rod is vertically arranged on the frame, a second guide sleeve which runs up and down is arranged at the rear part of the bag supply frame, and the second guide rod is positioned in the second guide sleeve and can move up and down in the second guide sleeve; the nut is meshed with the screw rod and is connected with the rear part of the bag supply frame; the hand wheel is installed on the upper end of screw rod.

6. The bag-feed type packaging machine of claim 4, wherein: the bag supplying frame comprises a back plate, two wall plates, two lower supporting plates and two front baffle plates, wherein the two wall plates are respectively arranged on the left side and the right side of the back plate and are vertical to the back plate, the two wall plates can move left and right relative to the back plate, the left side edge of one lower supporting plate is connected with the lower side edge of the wall plate positioned on the left side, the left side edge of one front baffle plate is connected with the front side edge of the wall plate positioned on the left side, the right side edge of the other lower supporting plate is connected with the lower side edge of the wall plate positioned on the right side, and the right side edge of the other front baffle plate is connected with the front side edge of the wall plate positioned on the right side; the backboard, the two wall boards, the two lower supporting sheets and the two front baffle sheets enclose a bag placing groove, and a bag outlet of the bag placing groove is arranged forward.

7. The bag-feed type packaging machine of claim 6, wherein: the back side surface of the back plate is provided with a wallboard interval adjusting mechanism, and the wallboard interval adjusting mechanism comprises a screw rod, at least one third guide rod, two nut seats and a driving device capable of driving the screw rod to rotate; the screw rod is rotatably arranged on the back plate and runs left and right, the third guide rod is arranged on the back plate and parallel to the screw rod, at least one third guide sleeve is respectively arranged on the two wall plates, and the third guide sleeve is sleeved on the third guide rod; the left section of the screw rod is provided with a positive external thread, the right section of the screw rod is provided with a reverse external thread, the two nut seats are respectively matched with the left section and the right section of the screw rod, and the two nut seats are respectively connected with the corresponding wall plates.

8. The bag-feed type packaging machine of claim 7, wherein: the lower sides of the two wall plates are gradually inclined downwards from back to front.

9. The bag-feed type packaging machine of claim 8, wherein: at least two strip-shaped guide holes which gradually incline downwards from back to front are respectively formed in the two wall plates, the strip-shaped guide holes in the two wall plates correspond to each other, rolling rods are arranged in the corresponding two strip-shaped guide holes, and the rolling rods are horizontally arranged in the bag placing grooves.

10. The bag-feed type packaging machine of claim 1, wherein:

the frame is provided with a hopper lifting mechanism, a power output end of the hopper lifting mechanism is provided with a lifting seat, and the discharging hopper is arranged on the lifting seat; the hopper lifting mechanism is a first cylinder, the cylinder body of the first cylinder is arranged on the frame, the piston rod of the first cylinder is arranged upwards, and the lifting seat is arranged at the tail end of the piston rod of the first cylinder;

the heat sealing mechanism comprises two heat sealing driving devices, two heat sealing pressing blocks and two heat sealing strips, wherein the two heat sealing driving devices are arranged on the frame, the power output ends of the two heat sealing driving devices are oppositely arranged, the two heat sealing pressing blocks are respectively arranged on the power output ends of the corresponding heat sealing driving devices, and the two heat sealing strips are arranged on the inner side surfaces of the corresponding heat sealing pressing blocks;

the lower extreme of frame is equipped with ejection of compact conveyer belt, and ejection of compact conveyer belt's feed end is in the below of heat-seal station.

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