CN218751739U - Double-station bag feeding packaging machine - Google Patents

Abstract

The utility model provides a double-station bag feeding packaging machine, which is provided with a positioning device and a bag opening device for a bag opening station and a filling device and a sealing device for a filling sealing station; the bag storage and separation device is arranged above the bag storage and separation device, and the positioning device and the bag opening device are arranged below the bag storage and separation device; the bag feeding and packaging machine is provided with two filling and sealing stations which are arranged on two sides of the bag opening station; a reciprocating bag feeding device is arranged below the bag opening device, the filling device and the sealing device; the bag clamping driving mechanism and the adjusting power of the bag clamping mechanism arranged on the reciprocating bag feeding device are power controlled by independent programs, and the adjusting power is a driving mechanism for adjusting the distance between the left bag clamping assembly and the right bag clamping assembly of the bag clamping mechanism of the reciprocating bag feeding device. The utility model discloses can send the bag through gravity, through translation reciprocating transport, control (or around) duplex position filling seal, place area occupied is little, and the mechanism is simple, and is efficient.

Description

Double-station bag feeding packaging machine

Technical Field

The utility model relates to a for bag packagine machine and packing method, especially relate to a duplex position for bag packagine machine and packing method.

Background

The bags are filled and packaged by a circular conveying type packaging method. If linear conveying packaging is adopted, the occupied area of the existing equipment is large, the stroke of a conveying device is long, or the conveying device still needs to do circulating motion in the vertical direction, so that the structure of the machine is complex.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bag packagine machine and packing method are given in duplex position translation to both reduce the place and occupy, can reduce conveying mechanism's complexity again, and efficiency is higher.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the double-station bag feeding packaging machine is characterized by comprising a bag storage and distribution device and a reciprocating conveying device, wherein the bag feeding packaging machine is provided with a bag opening station and a filling and sealing station, the bag feeding packaging machine is provided with a positioning device and a bag opening device for the bag opening station, and the bag feeding packaging machine is provided with a filling device and a sealing device for the filling and sealing station; wherein:

the bag storage and separation device is arranged above the bag storage and separation device, and the positioning device and the bag opening device are arranged below the bag storage and separation device;

the bag feeding and packaging machine is provided with two filling and sealing stations which are arranged at two sides of the bag opening station;

a reciprocating bag conveying device is arranged below the bag opening device, the filling device and the sealing device; the reciprocating bag conveying device is provided with a bag clamping mechanism to complete bag transmission between a bag opening station and a filling and sealing station; the bag clamping driving mechanism and the adjusting power of the bag clamping mechanism arranged on the reciprocating bag feeding device are power controlled by a single program, and the adjusting power is a driving mechanism for adjusting the distance between the left bag clamping assembly and the right bag clamping assembly of the bag clamping mechanism of the reciprocating bag feeding device.

On the basis of adopting above-mentioned technical scheme, the utility model discloses still can adopt following further technical scheme, or to these further technical scheme combined use:

the two filling and sealing stations are symmetrically arranged relative to the bag opening station.

The bag storage and distribution device is provided with a plurality of parallel bag storage bins and corresponding bag distribution mechanisms, and the bag storage bins are respectively provided with outlets; the bag opening device is provided with a bag opening mechanism, the bag opening mechanism is provided with a plurality of bag storage bins, the bag opening mechanism is provided with a plurality of bag clamping mechanisms, the bag storage bins are matched with the bag opening mechanism, the filling device is provided with a plurality of filling heads, and the sealing device is provided with a plurality of sealing mechanisms.

The reciprocating bag conveying device is provided with a first group of bag clamping mechanisms and a second group of bag clamping mechanisms, and the first group of bag clamping mechanisms and the second group of bag clamping mechanisms synchronously move in the same direction; the first group of bag clamping mechanisms move back and forth between the bag opening station and the first filling and sealing station of the two filling and sealing stations, and the second group of bag clamping mechanisms move back and forth between the bag opening station and the second filling and sealing station of the two filling and sealing stations.

The positioning device is provided with a lifting connecting mechanism, the positioning device is provided with a positioning structure with an upward opening and bag opening and abdicating positions arranged on the front surface and the rear surface, and the positioning structure is used for receiving bags falling after bag separation; the positioning structure is connected with the lifting connecting mechanism and can be lifted upwards to a bag opening station and lowered to give way.

The bag opening device is provided with a sucker lifting connecting mechanism, the bag opening device is provided with a front sucker and a rear sucker, the front sucker and the rear sucker are connected with a sucker front-and-back moving mechanism so that the front sucker and the rear sucker can be separated from each other to perform bag opening action and approach each other to stick to a bag wall, the sucker front-and-back moving mechanism is connected with the sucker lifting connecting mechanism and can be lowered to the height of an opened bag and lifted to leave the bag which is clamped by a bag clamping mechanism on the reciprocating bag conveying device and opened.

And a bag discharging device is further arranged below the bag storage and separation device and guides the falling bags into the positioning device, and a bag falling track specified by the bag discharging device passes through a gap between the front sucking disc and the rear sucking disc of the bag opening device.

The filling station device is provided with a lifting connecting mechanism, and a filling head of the filling device is connected with the lifting connecting mechanism to descend for filling and ascend after filling.

The sealing device is provided with a sealing mechanism, the sealing mechanism is connected with the lifting connecting mechanism, descends for sealing, and ascends to leave the bag after the sealing is finished;

the lifting connecting mechanism of the sealing mechanism is provided with lifting power, the sealing mechanism is in a cantilever shape and is located on the side face of the connecting plate, the sealing mechanism is driven by the power to open and close, and the lifting power is located on the side face of the filling mechanism.

In order to achieve the above object, according to the second aspect of the present invention, the present invention adopts the following technical solutions:

a packaging method, characterized by comprising the following process steps:

s1, bag storage and bag separation station: used for storing the bag stack and separating the single bag;

s2, a bag opening station: carrying out bag opening operation;

s3, filling and sealing stations, namely filling materials into the bags and sealing the filled bags;

in the height direction, the bag opening station and the filling and sealing station are arranged below the bag storage and distribution station, two filling and sealing stations are arranged, and the two filling and sealing stations are arranged on two sides of the bag opening station;

the bag is conveyed by adopting a reciprocating bag conveying device, and the first group of bag clamping mechanisms move back and forth between the bag opening station and a first filling and sealing station of the two filling and sealing stations to convey the bags; the second group of bag clamping mechanisms move back and forth between the bag opening station and a second filling and sealing station of the two filling and sealing stations to convey bags;

when the first group of bag clamping mechanisms are at the bag opening station, the second group of bag clamping mechanisms are at the second filling and sealing station; when the second group of bag clamping mechanisms are at the bag opening station, the first bag clamping mechanism is at the first filling and sealing station.

Further: the filling and sealing are located at the same station.

Further:

after the bags are separated from the bag stack, the bags are limited by the bag conveying track and fall to the falling position determined by the positioning device by gravity, and the positioning device rises to the falling position by the lifting motion performed in sequence;

the bag opening device descends to a specified position through ascending and descending movement performed in sequence when the bag reaches the falling position determined by the positioning device; completing the bag opening action after the bag opening device receives the bag, and at the moment, descending the positioning device away from the falling position to give way; after the first group of bag clamping mechanisms clamp the opened bags at the bag opening station, the bag opening device releases the bags and lifts the bags away from the designated position, after the bags are transferred away, the positioning device lifts to the falling position, and when the first group of bag clamping mechanisms move to the first filling and sealing station, the second group of bag clamping mechanisms move to the bag opening station; the bag opening device descends to a specified position through ascending and descending movement performed in sequence when the bag reaches the falling position determined by the positioning device; after the bag opening device receives the bag, the bag opening action is finished, and at the moment, the positioning device descends to leave the falling position for abdicating; after the second group of bag clamping mechanisms clamp the opened bags, the bag opening device releases the bags and lifts the bags away from the designated position, after the bags are transferred away, the positioning device lifts to the falling position, the second group of bag clamping mechanisms are conveyed to the second filling and sealing station, and the first group of bag clamping mechanisms return to the bag opening station at the same time; circularly carrying out;

the bag clamping driving mechanisms and the adjusting power of the first bag clamping mechanism and the second bag clamping mechanism are power controlled by independent programs, the distance between the left bag clamping assembly and the right bag clamping assembly in the same group can be independently adjusted, and the bag clamps can be independently opened and closed, so that the left bag clamping assembly and the right bag clamping assembly can move to positions outside the side surface of the bag and displace towards the center to shorten the distance, and the bag is clamped;

the sealing mechanism receives the bag to perform bag sealing action, and after the sealing is finished, the sealing mechanism can directly release the bag to enable the sealed bag to fall and be output;

when the bag is received and sealed by the sealing mechanism, the bag clamping mechanism releases the bag and can move to the bag opening station under the conveying of the reciprocating bag feeding device.

Owing to adopt the technical scheme of the utility model, the utility model discloses a can send the bag through gravity, through the reciprocal transport of translation, control (or around) duplex position filling seal, the place area occupied is little, and the mechanism is simple, and is efficient.

Drawings

Fig. 1 is a schematic view of an embodiment of the dual-station translational bag feeder of the present invention viewed from one angle.

Fig. 2 is a schematic view of the embodiment of the dual-station translation bag-feeding packaging machine of the present invention viewed from another angle.

Fig. 3 is a side view of the embodiment of the double-station translation bag feeding and packaging machine of the present invention.

Fig. 4 is a schematic view of the bag storage and separation mechanism in the embodiment shown in fig. 1-3.

Fig. 5 is a schematic view of a bag opening mechanism in the embodiment shown in fig. 1-3.

Fig. 6 is a schematic view of a lower bag positioning mechanism in the embodiment of fig. 1-3.

Fig. 7 is a schematic view of the filling mechanism mounting structure in the embodiment shown in fig. 1-3.

Fig. 8 is a schematic view of the closure mechanism in the embodiment of fig. 1-3.

FIG. 9 is a schematic view of the shuttle in the embodiment of FIGS. 1-3

Fig. 10 is a flowchart of a packaging method provided by the present invention.

Detailed Description

Reference is made to the accompanying drawings. The utility model provides a bag packagine machine is given to duplex position, divide bagging apparatus and reciprocating conveyor including storing up the bag, set up for bag packagine machine and open bag station S2 and filling and seal station S3, set up positioner and open the bagging apparatus for bag packagine machine to opening bag station S2, seal station S3 and set up filling device and closing device for the filling for bag packagine machine.

The bag storage and separation device 200 is arranged at a bag storage and separation station S1 above the machine frame 100, and a positioning device and a bag opening device are arranged below the bag storage and separation device, wherein the positioning device is used for receiving the falling bags 801 after bag separation.

The bag feeding and packaging machine is provided with two filling and sealing stations S3, and the two filling and sealing stations S3 are arranged on two sides of the bag opening station;

a reciprocating bag feeding device 700 is arranged below the bag opening device, the filling device and the sealing device; the reciprocating bag conveying device is provided with a bag clamping mechanism to complete bag transmission between a bag opening station and a filling and sealing station; the bag clamping driving mechanism and the adjusting power of the bag clamping mechanism arranged on the reciprocating bag feeding device are power controlled by a single program, and the adjusting power is a driving mechanism for adjusting the distance between the left bag clamping assembly and the right bag clamping assembly of the bag clamping mechanism of the reciprocating bag feeding device.

The bag storage and distribution device 200 is provided with a plurality of parallel bag storage bins 201 and corresponding bag distribution mechanisms, bags are placed in the bag storage bins 201 and stacked and provided with outlets 202, the bag storage bins 201 are arranged obliquely so that the bags can be fed to the bag storage bin outlets 202 one by means of gravity, sucking discs 203 are arranged outside the outlets of the bag storage bins, each bag storage bin outlet 202 is provided with a group of sucking discs 203 respectively, the sucking discs 203 are installed on an installation plate 204, the installation plate 204 is connected with a driving mechanism 205 (such as an air cylinder) and moves back and forth over the bag storage bin outlets 202, the sucking discs 203 suck the bags when the bags advance to the outlets of the bag storage bin outlets 202, then the bags retreat for a set distance and are released, and the bags fall down by means of gravity.

The bag opening device is provided with a bag clamping mechanism, the bag opening mechanism is provided with a bag storage bin, the bag storage bin is provided with a bag opening mechanism, the bag opening mechanism is provided with a bag storage bin, the bag storage bin is provided with a bag clamping mechanism, the filling device is provided with a corresponding number of filling heads, and the sealing device is provided with a corresponding number of sealing mechanisms.

Preferred embodiments of the devices and their cooperation are described in further detail below with reference to the accompanying drawings.

The bag storage and separation device is further provided with a bag discharging device below, the bag discharging device adopts a bag conveying rail 206, the bag is guided into the positioning device by the conveying rail 206, the conveying rail 206 consists of two opposite guide grooves, and the bag slides down along the guide grooves by means of gravity. The bag falling trajectory defined by the conveying track 206 passes through the gap between the front suction cup and the rear suction cup of the bag opening mechanism.

The positioning device 300 is provided with a lifting connection mechanism and a plurality of positioning structures 302 with openings facing upwards and provided with bag opening abdicating parts 303 at the front and back sides, the number of the positioning structures 302 corresponds to that of the bag storage bins 201, and the positioning structures 302 are connected with the lifting connection mechanism and can be lifted to a bag opening station (the position of the positioning structures in figure 3) and can release the limitation on bags after being lowered. The lifting connection mechanism can adopt a cylinder 301 as power and is provided with a positioning structure lifting connection frame 304, and the lifting connection frame 304 is connected with the cylinder 301 and can be driven to lift. The positioning structure 302 is mounted on a lifting link 304. Location structure 302 comprises left side location strip and right side location strip, and left side location strip and right side location strip set up the inboard bag constant head tank of face respectively. Further, the positioning structure 302 can be adjustable to adapt to bags with different sizes, each left positioning bar is connected to the connecting frame 3021 on one side, each right positioning bar is connected to the connecting frame 3022 on the other side, and a guide rod 3023 is respectively arranged, so that the connecting frame 3021 and the connecting frame 3022 can be moved through a threaded connection structure by operating a hand wheel 3024 respectively.

The cylinder 301 is mounted on a mounting bracket 305. Further, the mounting rack 305 is fixedly mounted in a height-adjustable manner, the height can be adjusted when the specification is changed, a nut is arranged at the fixed mounting position of the mounting rack, the nut is in threaded connection with a lifting adjusting screw rod 308, the screw rod 308 is connected with a fixed seat 310, the height of the mounting rack 305 can be adjusted by rotating the screw rod 308 through a hand wheel 307, reference numeral 306 is a guide slider fixedly connected with the mounting rack 305, and reference numeral 309 is a guide rail slidably connected with the guide slider 306.

The bag opening working component of the bag opening device adopts a front sucker 401 and a rear sucker 402 which are arranged in a matched mode, the front sucker 401 and the rear sucker 402 are connected with a sucker front-and-back moving mechanism, so that the front sucker 401 and the rear sucker 402 can be separated from each other to perform bag opening action and approach to each other to stick to a bag wall, the sucker front-and-back moving mechanism is connected with a sucker lifting connecting mechanism, the bag opening working component can descend to a position where a positioning device positions a bag, namely a bag opening station S2, and ascends to leave the bag which is clamped by a bag clamping mechanism on the reciprocating bag conveying device and is opened. In this embodiment, the suction cup forward-backward moving mechanism includes a connecting plate 403, a driving cylinder 404, a mounting plate 405 of a front suction cup 401, and a mounting plate 406 of a rear suction cup 402, the driving cylinder 404 includes a cylinder for driving the mounting plate 405 to move forward and backward and a cylinder for driving the mounting plate 406 to move forward and backward, and the suction cup forward-backward moving mechanism may further include a guide structure for moving forward and backward. The connecting plate 403 is connected with a lifting driving cylinder 407 of the sucker lifting connecting mechanism, the front sucker 401 and the rear sucker 402 are arranged asymmetrically relative to the connecting plate 403, and a gap between the suckers 401 and the rear sucker 402 is used for a falling bag to pass through; the lifting connection mechanism is provided with a cylinder fixing plate 408 and a lifting guide structure.

The two filling and sealing stations S3 are respectively provided with a filling device, the filling device is provided with a lifting connecting mechanism to lift and lower the filling heads 501, and the number and arrangement mode of the filling heads 501 correspond to the bag clamping mechanism on the reciprocating bag feeding device 700. Reference numeral 502 is the lift of filling head and drives actuating cylinder, and reference numeral 503 is the mounting panel that drives actuating cylinder 502 that goes up and down, and reference numeral 504 is the liftable mounting panel of being connected with actuating cylinder 502, filling head 501 is connected with lift mounting panel 504. Adopt the utility model discloses a station cooperation and sack transport scheme seal the station at the filling, can not set up to press from both sides a bag mechanism to the filling action.

Seal station S3 to two filling and still set up closing device respectively, closing device sets up seals mechanism and lift coupling mechanism, seals the mechanism and is connected with lift coupling mechanism, and the lift coupling mechanism who seals the mechanism sets up cylinder 608 as lift power, cylinder 608 is installed on station mounting panel 604, seal the mechanism and install on mounting panel 602, mounting panel 602 is connected with cylinder 608, and can be driven and go up and down. The sealing mechanism is provided with a front sealing piece 6011 and a rear sealing piece 6012, and the bag is sealed by the front sealing piece 6011 and the rear sealing piece 6012 in an electric heating clamping mode. After the bag is filled, the air cylinder 608 drives the sealing mechanism to lower to the sealing height for sealing. Reference numeral 609 is a lift guide assembly.

The sealing mechanism is in a cantilever shape and is located on one side of the connecting plate 602, and the cylinder 603 drives the sealing mechanism to open and close, so that the cylinder 603 can be located on the side surface of the filling mechanism, and when the front sealing piece 6011 and the rear sealing piece 6012 are opened, the space between the front sealing piece 6011 and the rear sealing piece 6012 is a lifting channel of the filling head. The front sealing member 6011 and the rear sealing member 6012 may be respectively connected to a power source, and the cantilever structure of the sealing mechanism in this embodiment is driven by one power source. The front sealing member 6011 is connected to a movable frame 605, the movable frame 605 is provided with a cantilever-shaped guide rod 607 slidably connected to the connection plate 602, and the connection plate 602 is provided with a guide matching structure slidably connected to the guide rod 607. An extension bar of the cylinder 603 is connected to a connection bar 6010 at the other side of the connection plate 602, and the connection bar 6010 is connected to the guide bar 607. A buffer spring 606 is provided between the front sealing member 6011 and the carriage 605. The mounting rack 6013 of the rear sealing member 6012 is fixedly connected to the connecting plate 602 through a connecting structure, and two sides of the mounting rack 6013 are also respectively provided with a guide matching structure to be slidably connected to the guide rod 607. A power cylinder can also be arranged between the mounting rack 6013 and the connecting plate 602, so that the bag clamping efficiency is better.

The reciprocating bag feeding device is provided with a reciprocating conveying mechanism 700 which can adopt a belt or chain transmission mechanism making reciprocating motion, and reference numeral 709 is a driving mechanism thereof. The reciprocating conveying mechanism 700 is provided with a first group bag clamping mechanism 701 and a second group bag clamping mechanism 702, the first group bag clamping mechanism 701 and the second group bag clamping mechanism 702 are connected with the reciprocating conveying mechanism 700 through a connecting structure to synchronously move in the same direction, the first group bag clamping mechanism 701 and the second group bag clamping mechanism 702 are separated by a certain distance, and the distance between two filling and sealing stations S3 and a middle bag opening station S2 is equal in the conveying distance of the reciprocating conveying mechanism 700; the first group of bag clamping mechanisms move back and forth between the bag opening station and a first filling and sealing station of the two filling and sealing stations to convey bags; the second group of bag clamping mechanisms move back and forth between the bag opening station and the second filling and sealing station of the two filling and sealing stations to convey the bags. Therefore, the two sets of bag clamping mechanisms can be conveyed quickly, efficiently and in a relay mode, the occupied area is small, the first set of bag clamping mechanisms 701 and the second set of bag clamping mechanisms 702 are transferred synchronously in corresponding stations, and the efficiency is improved. When the first bag clamping mechanism 701 and the second bag clamping mechanism 702 are respectively conveyed by reciprocating conveying mechanisms driven by different powers, the distances between the two filling and sealing stations S3 and the middle bag opening station S2 are not required to be equal.

As described above, the reciprocating conveying device is provided with a matched number of bag clamping mechanisms, and the bag clamping mechanisms of the first group of bag clamping mechanisms 701 and the second group of bag clamping mechanisms 702 are equal in number and correspond to the positioning structures 302 in number. The first bag clamping mechanism 701 and the second bag clamping mechanism 702 have the same structure, and the structure of the first bag clamping mechanism 701 is taken as an example as follows: the bag clamping mechanisms of the first group of bag clamping mechanisms 701 are connected in parallel through guide rods 703, two ends of each guide rod are connected with the sliding seat 704 on one side, and the guide rods 703 of the second group of bag clamping mechanisms 702 are connected with the sliding seat 704 on the other side. The sliding seats 704 are connected with the guide rail 705 in a sliding mode through guide blocks, the sliding seats 704 of the first bag clamping mechanism 701 and the second bag clamping mechanism 702 are connected together through a connecting plate to achieve spacing, and the first bag clamping mechanism and the second bag clamping mechanism are connected with the reciprocating conveying mechanism 700 through a connecting piece 710. It is also possible to directly synchronize the belt connecting the first set of bag gripping mechanisms 701 and the second set of bag gripping mechanisms 702.

The independent adjustment power can be independently controlled in groups or independently controlled for only a single bag clamping mechanism. Since in this embodiment, the bag-clamping mechanisms of the same group arrive at the same station at the same time and do the same work, preferably, the adjusting power is independently controlled according to the group, the bag-clamping mechanisms of the first group of bag-clamping mechanisms 701 are adjusted by the same adjusting power, and the bag-clamping mechanisms of the second group of bag-clamping mechanisms 702 are adjusted by the same adjusting power. In this embodiment, the adjusting power is a motor 706 or other available power, the motor 706 is mounted on the sliding seat 704 and also moves along with the sliding seat 704, the motor 706 is connected to a lead screw 707 parallel to the guide rod 703, the lead screw 707 is formed by connecting multiple lead screws through a connecting shaft structure, and can be connected by a key slot or a coupling, the lead screw threads at two ends of each lead screw are opposite, and each lead screw corresponds to one bag clamping mechanism. The left bag clamping assembly and the right bag clamping assembly of the bag clamping mechanism are respectively provided with a mounting seat 77, and the mounting seats 77 on the left side and the right side are provided with nut sleeves or nut holes and are in threaded connection with screw rods at two ends of each screw rod, so that the left bag clamping assembly and the right bag clamping assembly synchronously move in the opposite direction. Through independent regulation power for left bag subassembly and right bag subassembly can adjust the whole interval between left bag subassembly and the right bag subassembly of pressing from both sides, raise the efficiency, and optimize for the action sequence of different mechanisms of different devices in the complete machine and provide bigger space.

The left bag clamping assembly and the right bag clamping assembly are identical in structure and are respectively provided with an independently controlled driving mechanism, the driving mechanism can adopt an electric cylinder or an air cylinder, the driving mechanism is connected with the mounting seat 77, and the driving mechanism is connected with the clamping blocks through a connecting mechanism to drive the bag clamps 74 to open and close. The connecting mechanism may be a movable connecting rod, the bag clamp is driven to open and close through the movable connection of the movable connecting rod, the connecting mechanism may also be a rack which does linear motion, and the bag clamp 74 is driven to open and close through a meshing transmission structure of the rack and the gear. A guard member 75 may be provided outside the driving mechanism (electric cylinder or air cylinder) and the connecting structure, and if one of the clamp blocks is fixedly provided, the clamp block may be fixed to the guard member 75, and the guard member 75 is cantilevered forward and fixedly connected to the mounting seat 77.

The following describes the packaging method provided by the present invention in detail with reference to the accompanying drawings. The packaging method comprises the following processing procedures:

(1) Bag storage and separation station S1: for storing the stack 800 of bags, separating out the single bag 801;

(2) Bag opening station S2: carrying out bag opening operation;

(3) A filling and sealing station S3, which is used for filling materials into the bags and sealing the filled bags, wherein the filling and sealing are positioned at the same station, and the conveying mechanism 700 does not move the bag clamping mechanism from the beginning of filling to the end of filling and before the bag is clamped by the sealing device; when the first bag clamping mechanism 701 and the second bag clamping mechanism 702 are respectively conveyed by reciprocating conveying mechanisms driven by different powers, filling and sealing can also be positioned at different stations (bags are conveyed to different positions along the conveying mechanisms).

In the height direction, the bag opening station S2 and the filling and sealing station S3 are arranged below the bag storage and distribution station S1, two filling and sealing stations S3 are arranged, the bag opening station S2 is positioned in the middle, and the two filling and sealing stations S3 are arranged on two sides of the bag opening station S1 at equal intervals;

the bag is conveyed by adopting a reciprocating bag conveying device, and the first group of bag clamping mechanisms 701 moves back and forth between the bag opening station S2 and a first filling and sealing station of the two filling and sealing stations to convey the bag 801; the second group of bag clamping mechanisms 702 move back and forth between the bag opening station S2 and a second filling and sealing station of the two filling and sealing stations to convey the bags 801;

when the first bag clamping mechanism 701 is at the bag opening station S2, the second bag clamping mechanism 702 is at the second filling and sealing station (the right filling and sealing station S3 in fig. 3); when the second group of bag clamping mechanisms 702 is at the bag opening station S2, the first bag clamping mechanism 701 is at the first filling and sealing station (the filling and sealing station S3 on the left side in fig. 3).

In the process, after the bag 801 is separated from the bag stack 800, the bag is limited by the bag conveying track 206, and the bag falls to a falling position determined by the positioning device by gravity, namely the bag opening station S2, and the positioning device ascends to the falling position by the ascending and descending movement performed in sequence;

the bag opening device descends to a specified position through ascending and descending movement performed in sequence when the bag reaches the falling position determined by the positioning device; the bag opening device finishes the bag opening action after receiving the bag, and at the moment, the positioning device descends away from the falling position to carry out abdication (the abdication is the position for the left bag clamping component and the right bag clamping component of the bag clamping mechanism to smoothly move from two sides to the middle to clamp the bag, and the bag is sucked by the bag opening device before abdication); after the bag clamping mechanism clamps the opened bag, the bag opening device releases the bag and lifts the bag away from the designated position. After the bag is transferred, the positioning device is raised to the falling position.

After the bag opening device receives the bag, the bag opening action is finished, and at the moment, the positioning device descends to leave the falling position for abdicating; the first bag clamping mechanism clamps the opened bag, the bag opening device releases the bag and lifts the bag away from the designated position, after the bag is transferred away, the positioning device lifts to the falling position,

the bag clamping driving mechanism and the adjusting power of the first bag clamping mechanism 701 and the second bag clamping mechanism 702 are power controlled by independent programs, and the distance between the left bag clamping assembly and the right bag clamping assembly in the same group can be independently adjusted, and the bag clamps can be independently opened and closed, so that the left bag clamping assembly and the right bag clamping assembly can move to positions outside the side face of the bag and displace towards the center to shorten the distance, and the bag is clamped. In each action station, the first group of bag clamping mechanisms and the second group of bag clamping mechanisms adjust the distance between the bag clamping assemblies as required through adjusting power.

When the first bag clamping mechanism 701 moves to the first filling and sealing station, the second bag clamping mechanism 702 moves to the bag opening station S2; completing the bag opening action after the bag opening device receives the bag, and at the moment, descending the positioning device away from the falling position to give way; after the second group of bag clamping mechanisms 702 clamp the opened bag, the bag opening device releases the bag and lifts the bag away from the specified position, and after the bag is transferred away, the positioning device lifts to the falling position; the second group of bag clamping mechanisms 702 are sent to a second filling and sealing station, and the first group of bag clamping mechanisms 701 return to the bag opening station S2 at the same time; and (4) circulating.

The bag is received at the sealing mechanism, the bag sealing action is carried out, after the sealing is finished, the sealing mechanism can directly release the bag, so that the sealed bag drops and is output, namely, two bag outlet stations S4 are also provided, and the two bag outlet stations are respectively positioned below the two filling and sealing stations.

When the bag closing mechanism receives the bag and closes the bag, the bag clamping mechanism releases the bag and can move to the bag opening station S2 under the conveying of the reciprocating bag feeding device.

Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element to be referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the orientation or positional relationship in the present invention are only used for exemplary illustration and are not to be construed as a limitation of the present patent, and it is possible for a person having ordinary skill in the art to understand the specific meaning of the above terms according to specific situations in conjunction with the drawings.

Unless otherwise specifically stated or limited, the terms "disposed," "sandwiched," and "connected" in the present disclosure are to be understood broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the specific embodiments of the present invention, but the structural features of the present invention are not limited thereto, and any changes or modifications made by those skilled in the art in the field of the present invention are all covered in the protection scope of the present invention.

Claims (9)

1. The double-station bag feeding packaging machine is characterized by comprising a bag storage and distribution device and a reciprocating conveying device, wherein the bag feeding packaging machine is provided with a bag opening station and a filling and sealing station, the bag feeding packaging machine is provided with a positioning device and a bag opening device for the bag opening station, and the bag feeding packaging machine is provided with a filling device and a sealing device for the filling and sealing station; wherein:

the bag storage and separation device is arranged above the bag storage and separation device, and the positioning device and the bag opening device are arranged below the bag storage and separation device;

the bag feeding and packaging machine is provided with two filling and sealing stations which are arranged at two sides of the bag opening station;

a reciprocating bag feeding device is arranged below the bag opening device, the filling device and the sealing device; the reciprocating bag conveying device is provided with a bag clamping mechanism to complete bag transmission between a bag opening station and a filling and sealing station; the bag clamping driving mechanism and the adjusting power of the bag clamping mechanism arranged on the reciprocating bag feeding device are power controlled by independent programs, and the adjusting power is a driving mechanism for adjusting the distance between the left bag clamping assembly and the right bag clamping assembly of the bag clamping mechanism of the reciprocating bag feeding device.

2. The dual station bag-feeding packaging machine of claim 1 wherein said two fill-seal stations are symmetrically disposed relative to said bag-opening station.

3. The dual-station bag feeding and packaging machine according to claim 1 wherein the bag storage and distribution device is provided with a plurality of parallel bag storage bins and corresponding bag distribution mechanisms, the bag storage bins being respectively provided with outlets; the bag opening device is provided with a bag clamping mechanism matched with the bag storage bin in quantity, the filling device is provided with filling heads in corresponding quantity, and the sealing device is provided with a sealing mechanism in corresponding quantity.

4. A dual station bag-feeding packaging machine according to claim 1 or 2 wherein the reciprocating bag-feeding apparatus is provided with a first set of bag-gripping mechanisms and a second set of bag-gripping mechanisms, the first and second sets of bag-gripping mechanisms moving synchronously and in the same direction; the first group of bag clamping mechanisms move back and forth between the bag opening station and the first filling and sealing station of the two filling and sealing stations, and the second group of bag clamping mechanisms move back and forth between the bag opening station and the second filling and sealing station of the two filling and sealing stations.

5. The double-station bag feeding packaging machine according to claim 1, wherein the positioning device is provided with a lifting connecting mechanism, the positioning device is provided with a positioning structure with an upward opening, a front side and a rear side provided with bag opening and abdicating parts, and the positioning structure is used for receiving bags falling after bag separation; the positioning structure is connected with the lifting connecting mechanism and can be lifted upwards to a bag opening station and lowered to give way.

6. The dual station bag feeding and packaging machine of claim 1 wherein the bag opener is provided with a suction cup lifting and connecting mechanism, the bag opener is provided with a front suction cup and a rear suction cup, the front suction cup and the rear suction cup are connected with a suction cup forward and backward moving mechanism so that the front suction cup and the rear suction cup can move away from each other to open the bag and approach each other to stick to the wall of the bag, and the suction cup forward and backward moving mechanism is connected with the suction cup lifting and connecting mechanism so that the suction cup can be lowered to a bag opening height and lifted away from the bag which is already opened and clamped by the bag clamping mechanism on the reciprocating bag feeding device.

7. The double-station bag feeding and packaging machine according to claim 1, wherein a bag discharging device is further arranged below the bag storage and separation device, the bag discharging device guides the falling bags into the positioning device, and the falling tracks of the bags specified by the bag discharging device pass through the gaps between the front suction cups and the rear suction cups of the bag opening device.

8. The dual station bag-feeding packaging machine according to claim 1 wherein the filling station device is provided with an elevating connecting mechanism, and the filling head of the filling device is connected with the elevating connecting mechanism to descend for filling and ascend after filling.

9. The dual station bag-feeding packaging machine of claim 1 wherein the sealing device is provided with a sealing mechanism, the sealing mechanism being connected to the lifting and lowering linkage to lower the seal and raise it away from the bag after the seal is completed;

the lifting connecting mechanism of the sealing mechanism is provided with lifting power, the sealing mechanism is in a cantilever shape and is located on the side face of the connecting plate, the sealing mechanism is driven by the power to open and close, and the lifting power is located on the side face of the filling mechanism.

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