CN111977034A

CN111977034A - Bag opening and filling mechanism and using method thereof

Info

Publication number: CN111977034A
Application number: CN202010778237.8A
Authority: CN
Inventors: 陈建强
Original assignee: Hefei Cherishing Pack Technology Co ltd
Current assignee: Hefei Cherishing Pack Technology Co ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2020-11-24

Abstract

The invention relates to the technical field of packaging, in particular to a bag opening and filling mechanism and a using method thereof, wherein the bag opening and filling mechanism comprises a second sucker unit and a bag opening and discharging unit, wherein the second sucker unit is used for preliminarily pulling two sides of an opening of a packaging bag, and the bag opening and discharging unit is used for completely opening the opening of the packaging bag; the second sucker units are divided into two groups and are respectively arranged at two sides of the mouth of the packaging bag, and each group of second sucker units comprises a second sucker group and a second sucker drive for driving the suckers at the second sucker group to move forwards and move away from each other; the bag opening and discharging unit comprises a first shell body and a second shell body. The invention has the advantages that: after the second sucking disc unit is used for sucking the packaging bag open, the material is placed into the packaging bag through the bag opening and discharging unit, and mechanical support is provided for realizing automatic bag opening and discharging.

Description

Bag opening and filling mechanism and using method thereof

Technical Field

The invention relates to the technical field of packaging, in particular to a bag opening and filling mechanism and a using method thereof.

Background

At present, nut packaging is all intensive manual or semi-manual operation, safety, sanitation and precision are not guaranteed, rework rate is high, and secondary waste is large. Specifically, the method comprises the following steps: on one hand, the labor intensity of staff is high, the staff is easy to fatigue, negative emotion is generated, and errors are easy to occur due to pure manual or semi-manual operation; on the other hand, the consumables taken manually, fool-type auxiliary equipment, manual bag opening, sealing, boxing and reworking, and even the transportation between the stations back and forth are all in the same space, so that crowding is easily caused, the whole working efficiency is low, and the packaging precision is low.

Disclosure of Invention

In order to provide a mechanical structure for realizing automatic bag opening of the packaging bag, the invention provides a bag opening and filling mechanism. The invention adopts the following technical scheme:

a bag opening and filling mechanism comprises a second sucker unit for opening two sides of a packaging bag and a bag opening and discharging unit for opening the packaging bag and placing materials, wherein the second sucker unit comprises a second sucker group consisting of two suckers and used for respectively sucking the outer edges of the two sides of the packaging bag and a second sucker drive driving the two suckers to move simultaneously in opposite directions; the bag opening and discharging unit comprises a first shell body and a second shell body which can be covered and plugged into the packaging bag, a bag opening supporting plate and a rotary drive fixed on the bag opening and discharging supporting plate, and the rotary drive drives the first shell body and the second shell body to rotate.

The use method of the bag opening and filling mechanism comprises the following steps:

s51, when the second sucker unit is close to the middle, the packaging bag moves upwards, and the bag supporting unit at the bottom of the packaging bag drives the bottom of the packaging bag to move upwards simultaneously; after the two sucking discs in the second sucking disc unit are completely attached to the corresponding surfaces of the packaging bag, the two sucking discs in the second sucking disc unit move in opposite directions to suck the packaging bag open, and when the two sucking discs reach a set distance, the control mechanism controls the shell-shaped bodies in the bag opening and discharging unit to move from the closing position to the opening position;

s52, the two suckers continue to move reversely until the first elastic component and the corresponding shell-shaped body press the packaging bag, and after the shell-shaped body is at the opening position, the detection hole and the suction surface of the corresponding sucker are just separated by the bag surface of the packaging bag;

s53, the control mechanism obtains the negative pressure value of the sucker through the negative pressure detection parts on the two sides, if the negative pressure value on one side of the packaging bag does not reach the set value, the control mechanism indicates that one side of the packaging bag is not opened, the control mechanism controls the corresponding mechanism to not work, otherwise, the step S54 is executed;

and S54, the control mechanism controls the material to enter the opened packaging bag through a blanking gap formed between the first shell body and the second shell body of the opening station.

The invention has the advantages that:

(1) according to the automatic bag opening and discharging device, after the second sucking disc unit sucks the packaging bag open, the bag opening and discharging unit is used for placing materials into the packaging bag, and mechanical support is provided for automatic bag opening and discharging.

(2) The hinge hole and the force acting hole are matched for rotation driving to drive the first shell body and the second shell body to rotate around the hinge hole, so that the first shell body and the second shell body can be replaced at an opening station and a closing station.

(3) The first elastic member serves to prevent the packing bag from slipping down when the material is filled and to protect the packing bag after the shell is pressed against the packing bag.

(4) The fixing of the sucker is realized by the mode of the front end connecting rod and the rear end connecting rod, and the movement of the sucker is realized by moving the front end connecting rod and the rear end connecting rod.

(5) All be provided with sucking disc and the first elastomeric element that is used for a plurality of wrapping bags of simultaneous action on front end connecting rod and the rear end connecting rod length direction, can handle a plurality of wrapping bags simultaneously.

(6) The second bag suction driving ensures that the synchronous movement of the front end connecting rod and the rear end connecting rod can be realized by using one power part.

(7) The negative pressure detecting parts corresponding to the sucking disc units on the left side and the right side of the packaging bag indicate that the packaging bag is not opened as long as one side of the negative pressure detecting parts does not reach a set value.

(8) The use of one shell power member ensures that the first shell and the second shell operate simultaneously, preventing failure.

(9) The method can well realize the bag opening and discharging effects.

(10) The annular section formed by the two shells in the open state effectively solves the problem of material filling blockage.

It should be noted that: the invention mainly protects the packaging bag to be transferred among all processes without protecting the software part in the packaging bag.

Drawings

Fig. 1 is an overall system diagram.

Fig. 2 is a perspective view of the material supply mechanism.

Fig. 3 is a perspective view of the material diverting and conveying unit.

Fig. 4 is a perspective view of the first transfer unit.

Fig. 5 is a perspective view of the second transfer unit.

Fig. 6 and 7 are sectional views at the second transfer unit and the first material shaping unit.

Fig. 8 is a perspective view of the packing bag supply mechanism.

Fig. 9 is a bottom view of the bag magazine.

Fig. 10 is a perspective view of the bag conveying mechanism and the finished product output mechanism on the bag conveying mechanism.

Fig. 11A, 11B, and 11C are sectional views of the pusher mechanism.

Fig. 12 is a structural view of the first guide groove.

Fig. 13 is a structural view of the second pushing unit.

FIG. 14 is a structural diagram of a bag opening and filling mechanism, a bag conveying mechanism and a first beating unit.

Fig. 15, 16 and 17 are structural views of a bag opening and discharging unit.

Fig. 18 is a perspective view of the shell.

Fig. 19 is a schematic perspective view of a bag supporting plate.

Fig. 20 is a schematic view of the arrangement position of the shaping mechanism.

Fig. 21 is a structural view of the first tapping unit.

Fig. 22 and 23 are structural views of the shaping mechanism.

Fig. 24, 25, and 26 are structural views of the lateral shaping portion.

Fig. 27 and 28 are structural views of the vertical shaping portion.

Figure 29 is a perspective view of the creasing assembly.

Fig. 30 and 31 are structural views of the sealing mechanism.

Fig. 32 is a perspective view showing the state in which the bag pressing unit and the heat insulating block are attached.

Fig. 33 is a partial mechanical diagram of the sealing unit.

The notations in the figures have the following meanings:

1-Material supply mechanism 10-general support

100-material diverting conveyor unit 101-main conveyor 102-paddle assembly 1021-first pivot pin

1022-separation plate 1023-deflector plate 1024-second pivot pin 1025-arcuate slot

103-first steering drive 1031-steering support 1032-steering power section 104-arc plate

110-first conveying unit 111-first conveyor belt 112-first photoelectric detection assembly

113-discharge assembly 114-flight 1151-first baffle 1152-second baffle 1153-third baffle

120-second transfer unit 121-first material buffer bin 122-second material buffer bin

123-scraping assembly 1231-scraping plate 1232-scraping drive 124-second photoelectric detection assembly

125-discharge plate 126-material temporary storage platform 127-auxiliary discharge part

130-first material shaping unit 131-first shaping drive 132-first shaping moving plate

140-first Pushing Unit

2-packaging bag supply mechanism

210-bag bin 2101-bin panel 2102-arc frame 2103-bag blocking piece

220-first suction bag unit 2201-first suction cup 2202-first suction bag drive

2203-suction cup connecting piece

230-third photoelectric detection component

3-bag conveying mechanism 300-second conveyor belt 301-second conveyor drive 302-side support plate

303-partition board 304-bag bottom baffle 305-bag supporting board

3110 bag head 3111 bag bottom

4-material conveying and pushing mechanism 410-material receiving and steering unit 4101-first guide groove 4102-second steering drive

4103-second channel 4014-transition channel

420-second pushing unit 4201-push rod

4202-contact assembly 42021-tablet 42022-protrusion 421-dam

5-bag opening and filling mechanism 500-second suction cup unit

501-second sucker group 5011-sucker connecting rod

502-second sucker drive 5021-rotating disc 5022-sucker rotating power component

5023-first rotating shaft 5024-second rotating shaft 5025-bag opening guide rail

5026-front end connecting rod 5027-rear end connecting rod

504-first elastic component

510-bag opening and discharging unit 511-first shell body 512-second shell body 5110-detection hole

513-rotary drive 514-powered rod

6-shaping mechanism 600-first tapping unit 601-tapping cylinder 602-tapping plate

610-second tapping unit

620-first pocket mouth shaping unit 6210-transverse shaping assembly 6211-transverse shaping support plate

6212-transverse reshape 62121-first rotary lever 62122-second rotary lever 62123-permanent seat

62124-transverse shaping plate 62125-transverse shaping drive

6220-longitudinal truing assembly 6221-vertical support plate

62221-first support plate 62222-second guide bar 62223-third support plate

62224-fourth guide bar

6223 moving plate

6224-longitudinal truing drive 62241-circular turntable 62242-annular power member

62243-third rotating shaft 62244-fourth rotating shaft 62245-bending connecting rod

6225-first longitudinal shaping plate 6226-second longitudinal shaping plate

6230-Plastic distance drive

6240-crease Assembly 6241-crease drive 6242-crease Block

62421-crease connecting block 62422-crease straight plate 62423-crease sloping plate

630-shaping air blowing pipe

7-sealing mechanism 710-bag pressing sealing assembly 711-heat insulation block 712-sealing unit

7121-sealing block 7122-heating element 7123-high temperature resistant rubber plate 7124-high temperature anti-sticking adhesive tape

7125 temperature measuring element

713-bag pressing unit 7131-bag pressing transition plate group 7132-bag pressing straight plate 7133-bag pressing inclined plate

720-sealing driving 730-sealing fixing plate

741-sliding bearing 742-position adjusting plate 743-handle 744-position adjusting guide shaft

745-adjusting screw rod

8-finished product output mechanism 81-discharging baffle 82-discharging driving mechanism

9-control mechanism 10-support frame

Detailed Description

As shown in fig. 1 to 32, the whole system of the present invention includes a main support frame 10 and a material supply mechanism 1 fixed on the main support frame 10 for supplying a material to be packaged;

the packaging bag supply mechanism 2 is used for realizing the supply function of the packaging bags;

the bag conveying mechanism 3 moves the packaging bags at different stations;

the material conveying and pushing mechanism 4 is used for conveying the materials falling from the material supply mechanism and pushing the materials into the packaging bag;

the bag opening and filling mechanism 5 is used for opening the packaging bag and putting materials;

a shaping mechanism 6 for shaping the packaging bag mouth to prepare for sealing;

the sealing mechanism 7 is used for sealing the packaging bag;

and the finished product output mechanism 8 is used for outputting the finished product to the next working procedure.

A control mechanism 9 for acquiring signals of each sensor in the device and controlling all driving operations;

after the material supply mechanism 1 and the packaging bag supply mechanism 2 supply materials and packaging bags respectively, the materials are put into the packaging bags through the bag opening and filling mechanism 5, then the packaging bags are subjected to shape shaping through the shaping mechanism 6, then the packaging bags are sealed through the sealing mechanism 7, and finally the packaging bags are output to the next procedure through the finished product output mechanism 8. The above-described path of travel of the packaging bag is realized entirely by the bag conveying mechanism 3 having an inclined conveying surface. In order to ensure the above movement function, as shown in fig. 1, the whole bag conveying mechanism 3 can be regarded as a road and is extended along the processing direction of the packaging bag supplying mechanism 2, the shaping mechanism 6, the sealing mechanism 7 and the finished product outputting mechanism 8, so that the ordered connection and material conveying function of materials at each process is achieved, and the continuity, the high efficiency and the fast rhythm of the whole processing structure are ensured.

To facilitate a further understanding of the specific construction of the invention, the mechanisms are described in detail below:

1. material supply mechanism

As shown in fig. 2 to 7, the material supply mechanism 1 includes a material turning and conveying unit 100, a first conveying unit 110, a second conveying unit 120, a first material shaping unit 130, and a first material pushing unit 140. The material turns to the conveying unit 100 and sets up in the front end of first conveying unit 110, and when the mechanism in the device rear does not have the material demand, material turns to conveying unit 100 and turns to the conveying with the material, can not flow into on first conveying unit 110.

As shown in fig. 3, the material diverting and conveying unit 100 includes a main conveyor belt 101, a paddle assembly 102, and a first diverting driver 103 for driving a diverting paddle 1023 to divert. The width of the main transfer belt 101 is greater than the width of the first transfer belt 111 in the first transfer unit 110. The first steering drive 103 comprises steering supports 1031 fixed on the steering baffles on two sides of the main conveyor belt 101, the two sides of the main conveyor belt 101 are provided with the steering baffles, the steering supports 1031 are provided with steering power parts 1032, the shifting plate assembly 102 comprises a first rotating pin 1021, a separating plate 1022, a steering shifting plate 1023 and a second rotating pin 1024, one end side surface of the steering shifting plate 1023 is connected with the separating plate 1022 through the first rotating pin 1021, the driving end of the steering power parts 1032 is connected with the second rotating pin 1024, the second rotating pin 1024 is arranged at the position close to the middle of the steering shifting plate 1023, the steering supports 1031 are provided with arc-shaped grooves 1025 for guiding the second rotating pin 1024, and the second rotating pin 1024 drives the steering shifting plate 1021 as a rotating shaft and the second rotating pin 1024 as an action point to rotate the steering shifting plate 1023. The separation plate 1022 functioning to divide the output end of the main belt 101 is disposed at the middle of the width direction of the main belt 101, and the diverter switch plate 1023 includes two stations during the movement. The first station is that the end of the steering poking plate 1023 far away from the partition plate 1022 leans against the steering baffle on the left side, so that the materials enter the material recovery box and are blocked from entering the second conveying unit to flow into the next process of the device, the second station is that the end of the steering poking plate 1023 far away from the partition plate 1022 leans against the steering baffle on the right side, and the materials enter the second conveying unit and are blocked from entering the material recovery box.

For better guidance of the material, the side of the main conveyor belt 101 before the material passes the paddle assembly 102 is provided with an arc 104 or inclined plate.

As shown in fig. 4, the first conveying unit 110 includes a first conveyor belt 111, and a first photoelectric detection assembly 112 and a discharge assembly 113 are sequentially disposed on a side of the first conveyor belt 111 along a moving direction of the material. When the materials are too much on the first conveyor belt 111, the first photoelectric detection assembly 112 includes two adjacent photoelectric sensors, and when the trigger time interval of the two photoelectric sensors is lower than a set value, the discharge assembly 113 behind the first photoelectric detection assembly 112 starts to operate at this time, so as to take out the corresponding surplus materials on the first conveyor belt 111 from the current queue, and push or blow the surplus materials into the material recycling box at the side from the preset discharge port on the first conveyor belt 111, thereby maintaining the interval uniformity of the materials in the transportation queue. Except that setting up unloading subassembly 113 in first conveyer belt 111 both sides, other positions department all is provided with the baffle, effectively prevents that the material from dropping from first conveyer belt 111. The discharging component 113 can adopt a compressed air nozzle to blow off the materials, can also be arranged into a cylinder, a slider-crank or even a screw slider and other similar pushing structures, and only needs to realize the pushing-out function of the materials. Above the first conveyor belt 111, a barrier 114 is disposed to lay an upright object flat, in which case the barrier 114 is supported by barriers on both sides. The stopper 114 is arranged so that when normal material transportation is considered, the soft nut package according to the present invention is usually fed in a flat lying state with the bag opening facing to the same side; however, the materials may be forced to be in an upright state due to many factors such as the collision of the materials with each other, the vibration of the belt surface of the conveyor belt, and even the random replacement of the bags after the temporary bag extraction by the sampling personnel; due to the arrangement of the blocking member 114, the materials which are vertical and are over high can be knocked back to the lying state by the blocking member 114 at a specific height, so that the material temporary storage platform at the next station can be ensured to normally receive the materials. To ensure the controllability of the material transportation, the rotation speed of the main conveyor belt 101 and the first conveyor belt 111 can be adjusted.

As shown in fig. 5, the second conveying unit includes a material temporary storage platform, a first material buffer bin and a second material buffer bin disposed at two sides of the material temporary storage platform, a material scraping assembly, and a second photoelectric detection assembly. Scrape the material subassembly including scraping the flitch, scraping the material drive, the material enters into material platform of keeping in after the conveying of first conveyer belt 111. The scraping drive orders about the scraping plates to move left and right, the materials of the material temporary storage platform are alternately pushed to the material placing plates located on two sides of the material temporary storage platform, and the material placing plates can be opened by the aid of the material plate drive connected with the control mechanism 9, so that the materials fall into the material buffer bin. The retractable material placing plates at the upper end surfaces of the first material buffer bin and the second material buffer bin and the reciprocating action of the scraping plates can be realized through software control, and of course, in actual operation, sensing equipment such as sensors can be arranged as appropriate, and the material dropping effect can also be realized. The scraping plate comprises two stations, one station is parallel and level with a first baffle 1151 close to a first material buffer bin, the other station is parallel and level with a second baffle close to a second material buffer bin, in the back-and-forth switching process of the first station and the second station, the scraping plate can push materials originally located on the material temporary storage platform to a material placing plate arranged on the buffer bin, and then the materials fall into the first material buffer bin and the second material buffer bin under the self-weight or the external force action through the opening and closing action of the material placing plate. It is worth noting that: when the scraping plate scrapes materials in a left-right reciprocating manner, the discharging plate is always in an extending covering state or a closed state; and only when the shaped materials in the two buffer bins are pushed out by the first pushing unit and the first shaping moving plate reset, the discharging plate is opened, so that the materials on the discharging plate are discharged into the corresponding buffer bins. And then, the discharging plates are covered again, and the first shaping moving plate works, so that the shaping operation is performed on the materials in the corresponding buffer bin. And only after the materials in the two buffer bins are shaped, the first material pushing unit meets the material pushing condition. Certainly, in actual operation, the first material pushing unit may also be designed as a single-rod double-group pushing structure, that is, the materials in the two buffer bins may be shaped independently by the two groups of material pushing units working independently, which is obviously not the same as the first material pushing unit in terms of efficiency, and will not be described herein again.

The height of the material temporary storage platform is not lower than that of the material discharging plates on two sides, so that the material discharging plates can be conveniently scraped by the material scraping plates. Optimized, for the better material from the blowing board fall into the material buffering storehouse in, be provided with the support on the lateral surface in material buffering storehouse, be fixed with the supplementary blanking part that is located directly over the blowing board on the support, supplementary blanking part is the portion of blowing in this scheme, just to the material buffering storehouse in, can accelerate the material and sink in the material buffering storehouse.

As shown in fig. 6, the first material shaping unit 130 includes a first shaping driver 131 and a first shaping moving plate 132, the first shaping moving plate 132 is a side wall of the first material buffer bin and the second material buffer bin, the side wall is located on a side surface of the length direction of the material, and the first shaping driver 131 drives the corresponding side wall to move back and forth, thereby playing a role of extruding the material to make the material elongated. Preferably, the first shaping moving plate 132 is arc-shaped or has a certain angle with the horizontal direction, so as to better attach the materials. The first shaping moving plate 132 in the first material buffer bin and the second material buffer bin extrudes the materials, so that the materials are as thin and long as possible within an allowable range, and the materials entering the later-stage working procedure are conveniently stuffed into the packaging bag.

As shown in fig. 5 and 7, the first material pushing unit 140 is disposed in the end direction of the first material buffer bin and the second material buffer bin, and the first material pushing unit 140 pushes the material near the bottom in the material buffer bin into the material receiving steering unit 410 of the material conveying and pushing mechanism 4.

The working process of the material supply mechanism 1 is as follows:

s11, the device is started, the control mechanism 9 controls the first steering drive 103 to work, the steering poking plate 1023 is located at the second station, the materials move from the material steering transmission unit 100 to the first transmission unit 110, the first photoelectric detection assembly 112 on the side of the first transmission unit 110 detects the feeding speed, when two adjacent materials are too close to each other, namely the adjacent materials are too close to each other, two photoelectric sensors in the first photoelectric detection assembly 112 transmit signals to the control mechanism 9, and the discharging assembly 113 acts to enable the redundant materials to be separated from the transportation queue of the first transmission belt 111 and move into the material recovery box. In addition, when the space between two adjacent materials is too close, no matter whether materials exist on the material buffer bin, the two material placing plates and the material temporary storage platform or not, redundant materials are removed; and if the materials are arranged on the material buffer bin, the two material placing plates and the material temporary storage platform, the first conveyor belt should stop working instantly, and the first conveyor belt can convey the materials to the material temporary storage platform again after the materials at the material temporary storage platform are digested, namely, the materials enter the next flow.

S12, the control mechanism 9 obtains a signal of the first photoelectric detection assembly 112, that is, after detecting that the material is fed from the first conveying unit 110, and when detecting that the material falls into the material temporary storage platform through the second photoelectric detection assembly, the control mechanism 9 controls the scraping drive, so that the scraping plate moves back and forth between the first station and the second station. When the material is placed on the material placing plate of the corresponding material buffer bin, the control mechanism 9 judges whether the material in the corresponding material buffer bin is discharged. When the materials are discharged, the control mechanism 9 controls the material placing plate to be located at the first station, so that the materials enter the corresponding material buffer bin and then are switched to the second station.

S13, after the material enters the corresponding material buffer bin, the first material shaping unit 130 shapes the material, the control mechanism 9 determines whether the material is needed in the material pushing mechanism 4, and when the material is needed, the control mechanism 9 controls the first material pushing unit 140 to push the material to the material pushing mechanism 4.

2. Packaging bag supply mechanism

As shown in fig. 8 and 9, the packing bag supply mechanism 2 includes a bag magazine 210 and a first bag suction unit 220. The bag magazine 210 includes a magazine panel 2101 as the bottom of the bag magazine 210, and an arc frame 2102 supporting a plurality of bags to be simultaneously placed. In this embodiment, the bag bin 210 and the first bag suction unit 220 are disposed opposite to each other. The arcuate frame 2102 has a different height from one side to the opposite side, which is caused by the difference in the inherent construction of the bag: in order to ensure the volume of the packaging bag, the bag bottom is usually of a foldable structure, so that the bag cavity can be automatically opened after materials enter the bag; the foldable structure of the bag bottom can enable the bag body to be in an unopened state, the thickness of the bag bottom is obviously thicker than that of the bag opening, and the thickness difference exists between the bag bottom and the bag opening. The thickness difference is more pronounced when a plurality of unopened pouches are stacked in the same direction as one another. When the arc-shaped frame 2102 of the present invention is adopted, it is obviously more favorable for achieving the purpose of reliably accommodating the packaging bag with the thickness difference. More specifically, the shape of the arc-shaped frame 2102 is a box-shaped structure with an upward opening, and the height of an outer end box wall of the arc-shaped frame 2102 contacting with the bottom of a packaging bag is higher than that of an inner end box wall of the arc-shaped frame 2102 contacting with the head of the packaging bag; on the horizontal projection perpendicular to the length direction of the packaging bag belt, an arc line formed by the projection of the outer end box wall and an arc line formed by the projection of the inner end box wall form a concentric circle. The wrapping bag is soft materials and level and places in bag storehouse 210, has seted up out the pocket hole on the storehouse panel 2101, the wrapping bag can pass under the adsorption affinity, and after the wrapping bag that leans on in storehouse panel 2101 medial surface department from going out the downthehole suction of pocket, storehouse panel 2101 is hugged closely under the action of gravity to adjacent wrapping bag at the rear. Optimally, the bag outlet hole is positioned at the box bottom of the bag bin, so that a bin panel for discharging bags is formed at the box bottom of the bag bin; bag blocking pieces 2103 are arranged along the periphery of the bag outlet hole, and each bag blocking piece 2103 is hinged and fixed on the bin panel 2101 through a hinge shaft vertical to the panel surface of the bin panel. The bag blocking piece 2103 is used for adjusting the size of the bag outlet hole and hanging the packaging bag at the bag outlet hole to prevent the packaging bag from automatically falling.

The first suction bag unit 220 includes a first suction plate 2201, a first suction bag drive 2202. The first suction cups 2201 and the bag bins 210 are multiple and the same in number, and the multiple first suction cups 2201 are connected with a first suction bag driver 2202 through suction cup connectors 2203. In this embodiment, the number of the first suction pads 2201 is 2.

The first suction tray 2201 is provided with a negative pressure pipe, and the negative pressure pipe is connected with a corresponding negative pressure supply part. The controlled end of the negative pressure supply part, which is opened or not, is connected with a control mechanism.

Preferably, in order to detect whether the bag taking is successful, the packaging bag supplying mechanism 2 further comprises a third photoelectric detection assembly 230, and the third photoelectric detection assembly 230 and the first bag suction drive 2202 are respectively connected with corresponding ports of the control mechanism.

The bag bin 210 is arranged on the side edge of the side edge support plate 302 of the bag conveying mechanism 3 through a support part. In this embodiment, the first suction bag units 220 are respectively disposed on the side support plates 302 at both sides of the bag conveying mechanism 3, and the first suction trays 2201 penetrate through the corresponding side support plates 302, thereby sucking the head and tail ends of the unified packaging bag.

3. Bag conveying mechanism

As shown in fig. 10, the bag conveying mechanism 3 includes a second conveyor belt 300, a second conveyor driver 301, a side support plate 302, and a plurality of partition plates 303, wherein the plurality of partition plates 303 are sequentially arranged on the second conveyor belt 300 at intervals and form an array of partitions with the second conveyor belt 300. The side support plates 302 are located on two sides of the second conveyor belt 300 and are parallel to the second conveyor belt 300, the width of the partition plate 303 is smaller than that of the second conveyor belt 300 and is far away from the side edge of the subsequent processing mechanism, the side support plates 302 on one side of the conveyor belt close to the subsequent processing mechanism press the second conveyor belt 300, and accordingly damaged materials cannot fall into the lower portion of the second conveyor belt 300. Preferably, a gap for sundries to fall off is reserved between the side support plate 302 at the lower side of the belt surface and the bag bottom baffle plate 304. The first suction tray 2201 sucks the packaging bags in the bag bin 210 into the partition space of the bag conveying mechanism 3 under the action of the first suction bag driving device 2202, the side supporting plates 302 are used for supporting two ends of the packaging bags in the conveying process of the packaging bags and play a role in positioning the packaging bags in the vertical direction, and therefore the centers of the filled packaging bags can be consistent with the centers required by the stations such as the shaping mechanism 6, the sealing mechanism 7 and the bag opening mechanism 5. The second conveyor drive 301 rotates the second conveyor 300 to transport the bag to the next station. The bag bottom baffle 304 is vertically arranged on the side edge of the partition board 303 and used for blocking the bottom of the packaging bag. Most of the pocket bottom flap 304 is hidden in the figure for ease of viewing other structures. As shown in fig. 19, a bag supporting driver for driving the bag supporting plate 305 to move up and down is disposed below the side supporting plate 302, and the bag supporting plate 305 is located at the bag bottom 3111. When the bag head 3110 of wrapping bag is held to a take the altitude to opening bag filling mechanism 5, hold in the palm the bag drive and order about bag board 305 and upwards jacking, make the wrapping bag be parallel with second conveyer belt 300 all the time. In the unactuated state, the pocket support plate 305 is flush with the surface of the side support plate 302.

Thus, in the bag opening process, the central axis of the packaging bag is always parallel to the second conveyor belt 300. Since the bottom of the folded packages is nearly perpendicular to the side support plates 302 during the opening process, the packages are inclined on the second conveyor 300. With the closed-loop material conveying of the second conveyor belt 300, the partition spaces of the bag conveying mechanism 3 are continuously circulated among the packaging bag supply mechanism 2, the material conveying and pushing mechanism 4, the bag opening and filling mechanism 5, the shaping mechanism 6, the sealing mechanism 7 and the finished product output mechanism 8, so that the feeding effect is realized.

Because the second conveyor belt 300 is inclined, the flexible packaging material can be conveyed, pushed and filled conveniently, and in the inclined state, the packaging bag can make the bag bottom 3111 and the longitudinal bottom surface fully contact with the bag supporting plate 305 and the side supporting plate 302 by means of the self gravity, so that the packaging bag can be accurately positioned and conveyed between the partition plates. Compared with other modes, the structure has the advantages of simple mechanical structure, high efficiency and good automatic alignment effect. The transverse distance between the partitions is slightly larger than the transverse width dimension of the bag, so that the bag can be automatically aligned under the action of gravity in the partition with the inclined layout. However, the structure also has a certain problem that the opening of the packaging bag can be passively tilted upwards under the bag opening action of the bag opening and filling mechanism 5, and then the materials enter the packaging bag under the material pushing action of the material conveying and pushing mechanism 4; however, in practical operation, people find that when the bag body of the packaging bag and the pushing path of the pushing mechanism 4 are not in the same plane, the bottom of the packaging bag is bent, so that the material cannot directly move to the bottom, and the feeding state is affected. The present invention solves the above problem by means of the bag pallet 305 by providing a preformed hole in the side support panels 302 at the bag opening and filling mechanism 5 through which the bag pallet 305 can extend. Every time the bag opening and filling mechanism 5 opens the bag opening of the packaging bag, the bag supporting plate 305 synchronously ascends through the reserved hole as shown in fig. 10, so that the bag bottom of the packaging bag is pushed to synchronously lift along with the bag opening; therefore, the pushing path of the pushing mechanism 4 can be basically flush with the length direction of the packaging bag at each time, the materials can be pushed to the bottom, and the operation is very flexible and efficient.

In addition, due to the processing technology of the bag body, the bottom edge of the bag body is usually in a hard folded angle shape after hot pressing. The hard corner-shaped bottom edge of the bag does not affect the matching state of the bag body and the second conveying belt 300 when the bag body is not opened. However, after the materials are pushed into the packaging bag and shaped, the bottom of the packaging bag is pressed and opened, and the bottom edge of the hard corner-folded bag of the bag body is tilted downwards and extrudes the side supporting plate 302, so that the bag body cannot present a required attaching type transportation state. Therefore, according to the invention, the reserved gap is preset between the bag bottom baffle 304 and the side support plate 302, once the bag bottom edge of the packaging bag filled with materials tilts downwards, the bag bottom edge of the packaging bag filled with materials can naturally fall into the reserved gap, so that the bottom bag side of the packaging bag filled with materials can be always and correctly attached to the second conveyor belt 300, and meanwhile, the sundries falling function is also realized, and the working reliability and the high efficiency of the whole bag conveying process are further ensured.

The working process of the matching of the packaging bag supply mechanism 2 and the bag conveying mechanism 3 is as follows:

s21, placing the packaging bags into the bag bin 210, and enabling the packaging bags at the lowest part to be tightly attached to the bin panel 2101 in the arc-shaped frame 2102 due to the action of gravity;

s22, the control mechanism 9 controls the first suction bag drive 2202 to work, and the first suction disc 2201 sucks the innermost packaging bag from the holes of the bin panel 2101 to the corresponding partition rooms through negative pressure; the third photoelectric detection component 230 detects whether the bag taking is successful, if the bag taking is successful, the step S23 is performed, and if the bag taking is not successful, the control mechanism 9 controls the partition room to operate to all subsequent stations, and the corresponding stations do not operate;

s23, when the first suction tray 2201 contracts downwards in a direction away from the bag bin 210, the negative pressure supply part stops supplying negative pressure when reaching the set position, and the packaging bag falls from the first suction tray 2201 into the partition space under the action of gravity;

s24, the control mechanism 9 obtains the signal of the positioning photoelectric detection position, and controls the bag conveying mechanism 3 to work so that the packaging bag enters the next procedure.

4. Material conveying and pushing mechanism

As shown in fig. 11 to 13, the material pushing mechanism 4 includes a material receiving and turning unit 410 and a second material pushing unit 420.

The material receiving and turning unit 410 comprises a first guide slot 4101, a second turning drive 4102 for driving the first guide slot 4101 to turn, a second guide slot 4103 and a transition channel, wherein the first guide slot 4101 comprises two stations under the action of the second turning drive 4102, the first station is in butt joint with the outlet of the material buffer bin so as to receive the material pushed out by the corresponding material buffer bin through the first material pushing unit 140, and the second station is that the first guide slot 4101 and the second guide slot 4103 form an annular cavity. In this embodiment, the annular cavity is cylindrical. The rotating shaft of the first guide groove 4101 is close to the transition channel, the input end of the transition channel is close to the output end of the cavity, and the transition channel is used as the total output of the material conveying and pushing mechanism 4 and is convenient to connect with the next procedure.

The first guide 4101 obtains the material at the front end, and the material may automatically fall out under the action of gravity by moving from the first station to the second station; on the one hand, the second trough 4103 prevents material from flying out during rotation of the first trough 4101; on the other hand, the second guiding slot 4103 can cooperate with the first guiding slot 4101 to form an annular cavity, so that the material is changed into a shape state suitable for the cavity, and the annular cavity can also provide a guiding channel for pushing the material.

The second pushing unit 420 includes a pusher 4201, a contact assembly 4202 fixed to an end of the pusher 4201, and a pusher driver, and the pusher 4201 moves back and forth in a longitudinal direction of the second guide groove 4103. Optimally, in order to reduce the damage of the material caused by large impact and effectively improve the work efficiency of material transmission and pushing, under the driving action of the push rod, the speed of the push rod 4201 in the process from the beginning to the returning is divided into a starting end uniform speed, a middle section uniform speed, a tail end static maintaining uniform speed and a returning uniform speed in sequence, and the returning uniform speed is not less than the starting end uniform speed, not less than the middle section uniform speed and more than the tail end static maintaining uniform speed, so that the material cannot be deformed or damaged due to overlarge speed when just contacting the second material pushing unit 420. Particularly for the materials of the flexible package, the initial end average speed is the high-speed operation before the materials contact the second pushing unit 420, the middle section average speed is the anti-crushing operation mode after the materials contact the second pushing unit 420, the terminal is static, the uniform speed is kept, the materials can be fully compacted in the packaging bag, and the return uniform speed is the high-speed return of the second pushing unit 420 after the pushing is finished, so that the working efficiency is improved.

In order to determine where to turn on different speeds, three inductive switches are sequentially arranged on the general support 10 at the side of the putter 4201 along the length of the putter 4201. When the push rod 4201 performs a specified linear motion, the inductive switches are sequentially triggered, so that the push rod 4201 is controlled to jump from the previous average speed to the next average speed. During the return process of the push rod 4201, the return average speed is maintained until the first inductive switch during the return process is touched, and the return average speed is reached to the initial state. Preferably, the driving device of the second pushing unit 420 is provided with a pushing resistance threshold, when the pushing resistance of the driving device is greater than the threshold, it indicates that the material is clamped in the cavity, and after the control mechanism 9 obtains a signal that the resistance of the driving device is greater than the threshold (for example, the power is greater than the threshold), the control mechanism 9 starts the alarm device and stops all mechanisms from working, so as to protect the clamped material, prevent the material from being excessively extruded and damaged, and prevent the mechanical structure from being damaged.

The contact assembly 4202 of the second pusher unit 420 includes a pusher piece 42021 and a protrusion 42022, and the bottom of the pusher piece 42021 is fixed to the pusher 4201 by a connecting plate. In the above solution, the push plate 42021 is integrally in the form of a wide-mouthed groove with gradually increasing size from the groove bottom to the notch, so that the push plate 42021 and the protrusion 42022 are conveniently fixed; meanwhile, the protrusion 42022 is fixed to the bottom of the concave cambered surface of the tablet 42021 by fixing means such as thread fitting, bonding, even welding, and the like. Preferably, the protrusion 42022 is secured to the stem 4201 by a threaded engagement to facilitate proper replacement of the protrusion 42022 when worn. When the material is soft, the wide-mouthed groove-shaped material pushing sheet 42021 can be tightly attached to the surface of the material by virtue of the arc-shaped contact surface, and compared with plane contact, the arc-shaped contact surface can play a certain furling function, so that the reshaped material can be prevented from deforming again. Meanwhile, on one hand, the protrusions 42022 can prevent the material from forming a vacuum area on the contact surface of the material and the tablet 42021 when the push rod 4201 is retreated under the above-mentioned gathering effect, which causes the material to be adsorbed on the tablet 42021; on the other hand, when the material is soft packaging bag, the protrusion 42022 pushes the top of the gas-containing soft packaging bag, so that the top of the material is folded back into the packaging bag, compared with the flat-pressing packaging bag, the upper end surface of the packaging bag is not easy to rebound, the volume of the whole material in the packaging bag is smaller, and the subsequent sealing operation of the packaging bag is facilitated. The whole contact assembly 4202 is connected with the push rod 4201 through a connecting plate, so that the contact assembly 4202 can be correspondingly replaced according to different materials, the use flexibility of the contact assembly is guaranteed, and the application range is wider.

When the detection component in the bag opening and filling mechanism detects that the packaging bag is not opened, the material can continue to enter the following process, and the material can be stopped from continuing falling through the material stopping part 421 arranged on the side edge of the second guide groove.

In this embodiment, the material pushing mechanisms 4 include two groups, which are respectively used for pushing the materials in the first material buffer bin 121 and the second material buffer bin 122.

The process of the material conveying and pushing mechanism 4 is as follows:

s41, the control mechanism 9 controls the first guide groove 4101 to be positioned at the first station, the material is discharged from the material buffer bin, and then the second steering drive 4102 is controlled to rotate to the second station;

s42, the push rod 4201 of the second pushing unit 420 moves towards the material direction, and pushes the material out of the cavity formed by the first guiding slot 4101 and the second guiding slot 4103, and falls into the packaging bag opened by the bag opening and filling mechanism 5.

5. Bag opening and filling mechanism

As shown in fig. 14 to 18, the bag opening mechanism includes a second suction cup unit 500 and a bag opening and emptying unit.

Second sucking disc unit 500 includes second sucking disc group 501 and second sucking disc drive 502, second sucking disc group 501 includes two sucking discs, is located the opening part of the both sides face of wrapping bag respectively, and second sucking disc drive 502 orders about two sucking discs of second sucking disc group 501 and adsorbs the both sides of wrapping bag simultaneously, then removes to opposite direction to open the wrapping bag.

The bag opening and discharging unit 510 comprises a first shell 511 and a second shell 512 which can be covered, a bag opening and discharging support plate and a rotary drive 513. When the first shell 511 and the second shell 512 are in the initial state, which is the closing position, the first shell 511 and the second shell 512 are respectively arranged at two sides of the mouth of the packaging bag; when the first shell 511 and the second shell 512 are in a working state, which is an opening station, the first shell 511 and the second shell 512 are hinged in an opposite direction until the tips of the first shell 511 and the second shell 512 are inserted into the bag mouths of the primarily pulled packaging bags, and at this time, a gap formed between the first shell 511 and the second shell 512 forms a blanking gap for blanking.

As shown in fig. 18, each of the first and

second shells

511 and 512 includes a shifting tongue having an arc-shaped appearance, and when the first and

second shells

511 and 512 are in an operating state, the arc surfaces of the shifting tongues of the two shells are opposite to each other so as to form the blanking gap; the arc back of the poking tongue is parallel to the poking tongue axis and is provided with a mounting plate, hinge holes and acting force holes are arranged on the mounting plate, the axes of the hinge holes are parallel to each other, the acting force holes are arranged at positions between the hinge holes and the poking tongue and are hinged to the bag opening and discharging supporting plate through the hinge holes, and the rotary drive 513 is connected with the acting force holes through a pull rod, so that the first shell-shaped body 511 and the second shell-shaped body 512 are driven to rotate around the hinge holes, and the first shell-shaped body 511 and the second shell-shaped body 512.

The rotary drive 513 comprises a shell-shaped body power part and power rods 514, the power rods 514 are hinged with the acting force holes, and two power rods 514 hinged with the first shell-shaped body 511 and the second shell-shaped body 512 are connected to each shell-shaped body power part.

The second suction cup unit 500 includes a front end link and a rear end link which are located at both sides of the packing bag and used for fixing the suction cups. The bag opening support plate is provided with a bag opening guide rail 5025, the guide direction of the bag opening guide rail 5025 is perpendicular to the bag surface of the packaging bag, and the front end connecting rod 5026 and the rear end connecting rod 5027 move back and forth on the corresponding bag opening guide rail 5025 under the action of the second sucker drive 502. The second sucker driver 502 comprises a rotating disk 5021, a sucker rotating power component 5022 for driving the rotating disk 5021 to rotate, a first rotating shaft 5023 and a second rotating shaft 5024 which are fixed on the rotating periphery, wherein a connecting line of the first rotating shaft 5023 and the second rotating shaft 5024 passes through the circle center of the rotating disk 5021, the first rotating shaft 5023 and the second rotating shaft 5024 are respectively connected through a rotating shaft connecting rod, and the rotating shaft connecting rod is connected with a corresponding front end connecting rod 5026 and a corresponding rear end connecting rod 5027.

When the first shell 511 and the second shell 512 are at the opening positions, the outer side surfaces of the bottoms of the first shell 511 and the second shell 512 are positioned in the packaging bag. In order to prevent the second suction cup unit 500 from being damaged when the second suction cup unit 500 is engaged with the corresponding shell to support the packing bag, the first elastic member 504 is fixed to the connecting rod at the bag opening supporting plate, and the first elastic member 504 is closer to the corresponding shell with respect to the suction cup of the second suction cup unit 500. The first elastic member 504 is used for cooperating with the shell to hold the front or rear opening of the packing bag in a facing manner after the shell is pressed against the packing bag, thereby preventing the packing bag from sliding down during filling and protecting the packing bag. When the shell is in the open position, the outer wall of the shell presses the bag against the first resilient member 504. The second suction cup unit 500 is located above the first elastic member 504 on the same side. Preferably, in order to detect whether the packaging bag is opened, the first and

second shells

511 and 512 have a detection hole 5110 on a contact surface with the packaging bag, a negative pressure detection member is disposed on a ventilation pipe of the second suction unit 500, and the negative pressure detection members corresponding to the suction units on the left and right sides of the packaging bag indicate that the packaging bag is not opened as long as one side of the negative pressure detection members does not reach a predetermined value. And sending a non-opening signal of the packaging bag corresponding to the partition to a subsequent control mechanism 9, wherein the material conveying and pushing mechanism 4, the shaping mechanism 6 and the sealing mechanism 7 are all not operated at the corresponding partition, and the packaging bag and the material in the partition are all recovered to a material recovery area.

The bag opening and filling mechanism 5 comprises the following working steps:

s51, when the second sucker unit 500 is close to the middle, the bag opening of the packaging bag moves upwards, meanwhile, the bag supporting unit supports the bag tail to move upwards synchronously, and the packaging bag is ensured to be level with the second conveyor belt 300 all the time; after the two suction cups in the second suction cup unit 500 are completely attached to the corresponding surfaces of the packaging bag, the two suction cups in the second suction cup unit 500 move in opposite directions to suck the packaging bag open; when the two suckers reach a set distance, the control mechanism 9 controls the shell-shaped bodies in the bag opening and discharging unit to move from the closing position to the opening position;

s52, continuing to move the two suckers in the reverse direction until the suckers are in place, and then starting to move each shell to the start position; after the shell is at the opening station, on one hand, the shell presses the bag opening of the packaging bag on the first elastic part 504, so that the bag opening of the packaging bag is fixed; on the other hand, the detection hole 5110 of the shell is located at the opposite side of the corresponding suction cup, that is, the detection hole 5110 and the suction surface of the suction cup are just separated by the bag surface of the packaging bag;

s53, the control mechanism 9 obtains the negative pressure value of the sucker through the negative pressure detection parts on the two sides, if the negative pressure value on one side does not reach the set value, the bag mouth on one side of the packaging bag is not opened, and when the control mechanism 9 controls the partition to move to the shaping mechanism 6 and the sealing mechanism 7, the shaping mechanism 6 and the sealing mechanism do not work, and the push rod 4201 can also be controlled not to work; if the negative pressure values on both sides reach the set value, the step S54 is executed;

s54, the control mechanism 9 controls the push rod 4201 in the material conveying and pushing mechanism 4 to work, so that the materials enter the packaging bag through a blanking gap formed by the two groups of the shells; then, the push rod 4201 returns to leave the materials in the bag cavity of the packaging bag, and the packaging process is completed.

During the return stroke of the push rod 4201, the two groups of shells start to be gradually reset, namely, the shells return to the closing position from the opening position; at this time, the clamping state between the corresponding shell and the first elastic member 504 disappears, and the packaging bag returns to the unconstrained state, so that the frictional force of the push rod 4201 actually drives the packaging bag containing the material to move upwards. At this time, the following first beating unit 600 is needed to perform the functions of exhausting air, primarily shaping, pressing out the bag to prevent the filled bag from being lifted up by the push rod 4201.

6. Shaping mechanism

As shown in fig. 14 and fig. 20 to 29, the shaping mechanism 6 includes a first tapping unit 600, a second tapping unit 610, and a first bag mouth shaping unit 620.

As shown in fig. 14, 20 and 21, the first tapping unit 600 is disposed at the bag opening and emptying unit in the bag opening mechanism. The first tapping unit 600 is provided with a tapping cylinder 601 and a tapping plate 602 fixed at a driving end of the cylinder. The clapper 602 beats the bulged packaging bag filled with the materials, so that on one hand, the shaping function is achieved, and the appearance attractiveness of the finished product of the packaging bag filled with the materials is ensured; on the other hand, the packaging bags filled with the materials are pressed back to the belt surface of the conveying belt again, so that the positioning effect of the packaging bags relative to the partitions is ensured.

The second flapping unit 610 and the first flapping unit 600 have the same structure and are arranged at the front end of the first bag mouth shaping unit 620.

The first tapping unit 600 and the second tapping unit 610 may be disposed, or alternatively disposed.

The first pocket shaping unit 620 includes a lateral shaping assembly 6210, a longitudinal shaping assembly 6220, a shaping mounting plate for fixing the lateral shaping assembly 6210 and the longitudinal shaping assembly 6220, and a shaping distance drive 6230 and a crease assembly 6240 for driving the shaping mounting plate to be adjusted in a distance from the pocket.

As shown in fig. 24 to 26, the transverse shaping assembly 6210 includes a transverse shaping supporting plate 6211, a transverse shaping portion 6212 on the transverse shaping supporting plate 6211 disposed in a mirror symmetry manner, and a transverse shaping driver 62125, wherein the right side of the transverse shaping portion 6212 includes a first rotating rod 62121, a second rotating rod 62122, a fixing seat 62123 of the transverse shaping plate 62124, and a transverse shaping plate 62124. The first rotating lever 62121 includes three rotating shafts along the length direction, the rotating shaft at the upper end is connected with the transverse shaping driver 62125, and the rotating shaft at the middle upper part is rotatably connected with the transverse shaping support plate 6211. In the above solution, the fixing seat 62123 is a 7-shaped connecting piece, and the first rotating rod 62121 is hinged at the corner of the 7-shaped connecting piece. The second rotating lever 62122 comprises 2 rotating shafts, the rotating shaft at the upper end is rotatably connected with the transverse shaping supporting plate 6211, and the rotating shaft at the lower end is hinged with the transverse end of the 7-shaped connecting piece. A transverse alignment plate 62124 is secured to the vertical end of the "7" shaped connector. Specifically, the mirror-symmetrical lateral shaping portion 6212 is driven by the lateral shaping drive 62125 so that a planar four-bar linkage is formed by the horizontal lateral portions of the first rotating lever 62121, the second rotating lever 62122, the lateral shaping support plate 6211, and the fixed seat 62123, so that the two symmetrical sets of lateral shaping plates 62124 always move in parallel back and forth in the approaching and separating directions with the two sets of lateral shaping plates 62124 always vertically downward. Because the transverse shaping driver 62125 is a floating structure, namely, only two ends of the transverse shaping driver are respectively hinged with the two groups of first rotating rods 62121, the transverse shaping driver has no other fixed structure; therefore, when the two lateral aligning plates 62124 are moved in opposite directions, the lateral aligning drive 62125 is shifted in the right and left direction in accordance with the amount of resistance fed back to the lateral aligning plates 62124 from both sides of the bag, so that it is possible to automatically correct errors in the size of the bag, errors in the shape of the filled bag, errors in the position between the partitions, and the like, thereby ensuring the optimum aligning effect. A plurality of mounting holes are formed in the vertical portion of the fixing seat 62123 along the length direction, waist-shaped holes are correspondingly formed in the transverse shaping plate 62124, the waist-shaped holes can be adjusted or replaced according to shaping size requirements, and the height of the transverse shaping plate 62124 on the 7-shaped connecting piece can be adjusted, so that the transverse shaping plate is suitable for different packaging bags. Because set up two sets of horizontal plastic subassemblies on horizontal plastic backup pad 6211, can realize carrying out the function of plastic simultaneously to two wrapping bags, show to promote actual plastic efficiency.

As shown in fig. 26 to 27, the longitudinal shaping assembly 6220 includes a vertical support plate 6221, a rectangular moving portion, a plate moving portion, and a longitudinal shaping drive 6224, the rectangular moving portion includes a rectangular frame including a first support plate 62221 and a second guide rod 62222 perpendicular to each other, a third support plate 62223 parallel to the first support plate 62221 and perpendicular to the second guide rod 62222, and a fourth guide rod 62224 parallel to the second guide rod 62222 and perpendicular to the third support plate 62223, and a first longitudinal shaping plate 6225 is fixed on the first support plate 62221. The plate moving part comprises a moving plate 6223 which is sleeved on the second guide rod 62222 to move back and forth, and the moving plate 6223 is provided with a second longitudinal shaping plate 6226 which can move oppositely and separately relative to the first longitudinal shaping plate 6225. A longitudinal trimming drive 6224 is provided on the vertical support plate 6221 and is connected to the third support plate 62223 and the moving plate 6223, respectively, said longitudinal trimming drive 6224 drives the third support plate 62223 and the moving plate 6223 to move towards and away from each other, so as to realize the opening and closing function of the first longitudinal trimming plate 6225 and the second longitudinal trimming plate 6226 inside the packaging bag. In this arrangement, the longitudinal shaping drive 6224 is a circular steering drive that rotates back and forth to effect simultaneous movement of the third support panel 62223 and the moving panel 6223 toward and away from each other. The principle of the annular steering drive is the same as that of the second chuck drive 502. The method specifically comprises the following steps: the annular steering drive comprises a circular turntable, an annular power component for driving the circular turntable to rotate, and a third rotating shaft and a fourth rotating shaft which are fixed on the periphery of the circular turntable, wherein a connecting line of the third rotating shaft and the fourth rotating shaft passes through the circle center of the circular turntable, the third rotating shaft and the fourth rotating shaft are respectively connected through a connecting rod, and the connecting rods are connected with a corresponding third supporting plate 62223 and a corresponding moving plate 6223. In order to shape two bags simultaneously, a first longitudinal shaping plate 6225 and a second longitudinal shaping plate 6226 are respectively provided at both sides of the first supporting plate 62221 and the moving plate 6223, and both ends of the moving plate 6223 are respectively fitted over the second guide bar 62222 and the fourth guide bar 62224 parallel to the second guide bar 62222. In other words: taking fig. 28 as an example, in actual operation, the longitudinal shaping driver 6224 performs a turning motion, i.e., a pushing force is applied to the third supporting plate 62223 and the moving plate 6223 through the transmission shafts; when the third supporting plate 62223 is pushed, it moves upward in fig. 28, and then the second guide rod 62222 and the fourth guide rod 62224 drive the first supporting plate 62221 to move upward; at the same time, the moving plate 6223 performs a downward guiding sliding motion relative to the second guide bar 62222 and the fourth guide bar 62224 due to the action of the transmission shaft. Thus, the moving plate 6223 to which the second longitudinal shaping plate 6226 is fixed moves downward, and the first support plate 62221 to which the first longitudinal shaping plate 6225 is fixed moves upward, so that the corresponding second longitudinal shaping plate 6226 and the first longitudinal shaping plate 6225 can synchronously move toward and away from each other. When the first longitudinal shaping plate 6225 and the second longitudinal shaping plate 6226 are used to extend into the bag openings at the front and rear sides of the packaging bag, the mutual separation action of the two can open the bag openings, so that the transverse shaping plate 62124 can be conveniently tucked from the left and right sides of the packaging bag, namely the narrow sides, to the bag side of the packaging bag; and the bag opening is released and reset in the similar action of the two so as to ensure that the current packaging bag can normally move to the subsequent flow.

When the first longitudinal shaping plate 6225 and the second longitudinal shaping plate 6226 are used as a group of shaping plate sets, two groups of shaping plate sets are arranged on the rectangular frame, so that one device can simultaneously shape two packaging bags. The longitudinal shaping plate is provided with a shaping air blowing pipe 630, air is blown into the packaging bag before the longitudinal shaping plate is inserted into the packaging bag, so that the packaging bag is fully opened, and the longitudinal shaping plate provided with the shaping air blowing pipe 630 can be replaced according to different sizes of the packaging bag.

The movement directions of the shaping distance driver 6230, the transverse shaping driver 62125 and the longitudinal shaping driver 6224 are perpendicular to each other, so that three-dimensional movement is formed.

As shown in fig. 22 and 29, the folding unit 6240 includes a folding driver 6241 and folding blocks 6242 respectively located at the front and rear sides, i.e., both long sides of the bag. The adjacent surfaces of the two groups of crease blocks 6242 are provided with second elastic components, thereby improving the crease effect. When the transverse shaping assembly 6210 and the longitudinal shaping assembly 6220 move in place, the two groups of crease blocks 6242 move in opposite directions under the action of the crease driver 6241 to clamp the upper front and rear sides of the middle part of the packaging bag in an inclined manner, and then the transverse shaping assembly 6210 and the longitudinal shaping assembly 6220 move away to finish shaping the mouth of the packaging bag and expose the curved smooth bag shoulder. Crease piece 6242 includes the crease connecting block, fixes the crease straight board on the crease connecting block, fixes the crease swash plate at the straight board lower tip of crease, and when the crease straight board produced the crease to the wrapping bag effect, crease swash plate slant laminating was in wrapping bag face department, the increase with the contact surface of wrapping bag to optimize the crease effect. Of course, the position of the crease component can be adjusted adaptively according to the requirements of the packaging bag, namely the height of the crease can be adjusted, so as to meet the processing requirements of different packaging bags.

The working process of the shaping mechanism 6 is as follows:

s61, the control mechanism 9 controls the first beating unit 600 to work, and the packaging bag which is just put in the material is shaped for the first time;

s62, the control mechanism 9 controls the second beating unit 610 to work, and secondary shaping is carried out on the packaging bag in which the material is just put;

s63, the control mechanism 9 controls the shaping distance drive 6230 to make the shaping plates in the transverse shaping assembly 6210 and the longitudinal shaping assembly 6220 be positioned at the corresponding positions of the packaging bags to be shaped; specifically, the transverse shaping plate 62124 is positioned at the left and right sides of the opening of the bag, the first longitudinal shaping plate 6225 and the second longitudinal shaping plate 6226 both extend into the packaging bag to be shaped, and the shaping air blowing pipe 630 on the longitudinal shaping plate blows air into the packaging bag while the shaping distance drive 6230 works, so that the packaging bag is fully opened, and the transverse shaping plate 62124 is in the maximum opening state, and the opening distance of the longitudinal shaping plate is smaller than the opening size of the packaging bag;

s64, the control mechanism 9 controls the transverse shaping drive 62125 in the transverse shaping assembly 6210 to work, so that the two groups of transverse shaping plates 62124 act oppositely and synchronously extrude the left side and the right side of the packaging bag inwards; in the process, the control mechanism 9 delays to control the operation of the longitudinal shaping drive 6224 in the longitudinal shaping assembly 6220, so that the first longitudinal shaping plate 6225 and the second longitudinal shaping plate 6226 generate the opposite action; namely: when the two groups of transverse shaping plates 62124 act oppositely, the first longitudinal shaping plate 6225 and the second longitudinal shaping plate 6226 act oppositely, and in the overlooking view of the bag opening, the parts are matched together to change the bag opening of the packaging bag from the original square section with a wide opening shape into a flat double M-shaped section;

s65, the control mechanism 9 controls the operation of the crease assembly 6240, the crease assembly 6240 compresses the package, and the shaping distance drive 6230 pulls the longitudinal shaping plate and the transverse shaping plate 62124 out of the package while the crease assembly 6240 compresses the package mouth.

7. Sealing mechanism

As shown in fig. 30-32, the sealing mechanism 7 includes bag pressing and sealing assemblies 710 located at both sides of the packaging bag, a sealing driver 720, and a sealing fixing plate 730 supporting the sealing driver 720. The bag pressing and sealing assembly 710 includes an insulation block 711 fixed to a driving end of a sealing driver 720, a sealing unit 712 fixed up and down on the insulation block 711, and a bag pressing unit 713. The sealing unit 712 includes a sealing block 7121, a heating element 7122 disposed in the sealing block 7121, and a high temperature resistant adhesive sheet 7123 fixed on a sealing surface of the sealing block 7121. In addition, as shown in fig. 33, the sealing mechanism further includes a high temperature anti-sticking adhesive tape 7124, the high temperature anti-sticking adhesive tape 7124 covers the outside of the high temperature resistant adhesive plate 7123, which on one hand plays a role of fixing the high temperature resistant adhesive plate 7123, and on the other hand can also avoid the situation of the packaging bag being burned due to the direct contact with the sealing block during the heat sealing process of the packaging bag. It should be noted that, in the length direction of the entire sealing block 7121, the high temperature resistant rubber sheet 7123 is higher than the sealing plane of the sealing block 7121, and since the high temperature resistant rubber sheet 7123 itself has compressibility, it can be automatically attached according to the thickness of different areas of the bag under the sealing pressure. Meanwhile, in order to control the temperature of the sealing block 7121, a temperature measuring element 7125 is further disposed on the sealing block 7121 so as to adjust the operating power of the heating element 7122.

The bag pressing unit 713 comprises a bag pressing transition plate group 7131, a bag pressing straight plate 7132 and a bag pressing inclined plate 7133, one end of the bag pressing transition plate group 7131 is fixed on the heat insulation block 711, the other end of the bag pressing transition plate group is connected with the pressing plate straight plate, the pressing plate inclined plate is arranged below the bag pressing straight plate 7132, and the outer side wall of the packaging bag is tightly attached to the bag pressing rear side. The length of the bag pressing transition plate group 7131 is adjustable, namely the distance between the bag pressing straight plate 7132 and the inclined plate to the heat insulation block 711 is adjustable, so that the bag pressing straight plate 7132 and the bag pressing inclined plate 7133 are applicable to different packaging bags filled with materials, the bag pressing unit 713 is used for realizing air exhaust before sealing and ensuring the sealing to be smooth, and the front and the back of a bag opening are not staggered. The bag pressing unit can be replaced, so that the bag pressing unit is suitable for packaging bags filled with different material quantities.

In order to adapt to different packaging bags and different sealing heights, the sealing mechanism 7 further comprises a sealing position adjusting assembly for adjusting the position of the sealing fixing plate 730, the sealing position adjusting assembly comprises a position adjusting plate 742, the position adjusting plate 742 is in sliding fit with a sliding bearing 741 on the general support frame 10 through a position adjusting guide shaft 744, and the top end of the position adjusting guide shaft 744 is fixed on the sealing fixing plate 730. Meanwhile, an adjusting screw 745 is rotatably fitted on the position adjusting plate 742, and an end of the adjusting screw 745 located outside the position adjusting plate 742 constitutes an operating end and is provided with a handle 743 for facilitating the operation, and an end of the adjusting screw located inside the position adjusting plate 742 extends axially and forms a screw fit with the overall support frame 10. Thus, each time the handle 743 is rotated, the adjustment screw 745 produces a screw slider motion with respect to the main support frame 10, which in turn causes the position adjustment plate 742 to move toward and away from the main support frame. The movement of the position adjusting plate 742 drives the sealing fixing plate 730 to move up and down, thereby completing the on-line adjustment function of the sealing mechanism 7.

The working process of the sealing mechanism 7 is as follows:

s71, controlling the position of the bag pressing and sealing assembly 710 by adjusting the handle 743; the control mechanism 9 controls the heating element 7122 to work, and the heating element 7122 is kept in different temperature states according to different packaging bag attributes according to the working time and power of the temperature measuring element 7125; meanwhile, the control mechanism 9 controls the first flapping unit 600 positioned at the sealing mechanism 7 to work, flap and shape the packaging bag, ensure that the part to be sealed of the packaging bag is in the right position, and facilitate the subsequent sealing operation;

s72, when the control mechanism 9 obtains that the package bag to be sealed reaches between the two sealing blocks 7121, the control mechanism 9 controls the sealing driver 720 to work, and under the action of the sealing driver 720, the heat insulation blocks 711 and the sealing unit 712 move in the same direction to realize the sealing operation, and simultaneously, the two sets of bag pressing units 713 engaged with each other perform synchronous opposite actions to perform the functions of beating and shaping.

After the patting and shaping and the subsequent heat sealing operations are completed, the sealed packaging bag enters a finished product output mechanism.

8. Finished product output mechanism

As shown in fig. 10, the finished product output mechanism 8 includes a discharge baffle 81 and a discharge driving mechanism 82 for driving the discharge baffle 81 to move up and down. The discharge baffle 81 is located on the lower side of the inclined second conveyor 300, in this case below the side baffle. The non-finished product and the finished product detect a signal corresponding to whether the packaging bag is opened or not according to the front end, the control mechanism 9 controls the discharging driving mechanism 82 to drive the discharging baffle 81 to move up and down, when the discharging baffle 81 moves downwards, one of the non-finished product and the finished product slides from the partition space through the upper part of the discharging baffle 81, and when the discharging baffle 81 moves upwards, the other one is output from the tail end of the rotating second conveyor belt 300. Here, finished products and unfinished products can be selected to fall, that is, only the finished products and the unfinished products need to be output through different channels. In this embodiment, the finished product falls down through the discharge baffle 81, and the unfilled material packaging bags are discharged along the end of the second conveyor belt 300.

The above mechanisms can work independently or in combination as required, and all belong to the technical solutions described in the present application.

The invention is not to be considered as limited to the specific embodiments shown and described, but is to be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides an open bag filling mechanism which characterized in that: comprises a second sucking disc unit (500) for preliminarily pulling two sides of the mouth of the packaging bag open and a bag opening and emptying unit (510) for completely opening the mouth of the packaging bag; the two groups of second sucker units (500) are respectively arranged at two sides of the mouth of the packaging bag, and each group of second sucker units (500) comprises a second sucker group (501) and a second sucker driver (502) for driving the suckers at the second sucker group (501) to move forward and away from each other; the bag opening and discharging unit (510) comprises a first shell body (511) and a second shell body (512), and the first shell body (511) and the second shell body (512) have the following two working states: when the first shell body (511) and the second shell body (512) are in the initial state, the first shell body (511) and the second shell body (512) are respectively arranged at two sides of the opening of the packaging bag; when the first shell body (511) and the second shell body (512) are in a working state, the first shell body (511) and the second shell body (512) are hinged in an opposite direction until the tips of the first shell body (511) and the second shell body (512) are inserted into the openings of the packaging bags which are initially pulled open, and at the moment, a gap formed between the first shell body (511) and the second shell body (512) forms a blanking gap for blanking.

2. The bag opening and filling mechanism according to claim 1, wherein the first shell (511) and the second shell (512) each comprise a shifting tongue with an arc-shaped appearance, and when the first shell (511) and the second shell (512) are in a working state, the arc surfaces of the shifting tongues of the two shells are opposite to each other so as to enclose the blanking gap; the arc back of the poking tongue is parallel to the axis of the poking tongue and is provided with a mounting plate, a hinge hole and an acting force hole are arranged on the mounting plate, the axes of the hinge hole and the acting force hole are parallel to each other, and the acting force hole is arranged at the position between the hinge hole and the poking tongue.

3. The bag opening and filling mechanism according to claim 2, further comprising a rotary drive (513) forming a power source of the corresponding scallop, wherein the rotary drive (513) is a cylinder, and a piston rod end of the rotary drive (513) is connected with the force hole through a power rod (514); hinge axes at two ends of the power rod (514) are parallel to the hinge hole axes.

4. A bag opening and filling mechanism according to claim 1, further comprising a first elastic member (504) for engaging the first shell (511) with the second shell (512) to clamp the mouth of the corresponding side of the packaging bag.

5. The bag opening and filling mechanism according to claim 1, wherein the second sucker unit (500) further comprises a sucker link (5011) for fixing the sucker on the same side, a front end link (5026) and a rear end link (5027) which are located on two sides of the bag and are used for connecting the corresponding sucker link (5011), the sucker link (5011) moves back and forth on a bag opening guide rail (5025) arranged on the bag opening support plate, the direction of the bag opening guide rail (5025) is perpendicular to the direction of the bag surface of the bag, and the front end link (5026) and the rear end link (5027) move back and forth on the corresponding bag opening guide rail (5025) under the action of the second sucker driver (502).

6. The bag opening and filling mechanism according to claim 5, wherein the second sucker driver (502) comprises a rotating disk (5021), a sucker rotating power component (5022) for driving the rotating disk (5021) to rotate, a first rotating shaft (5023) and a second rotating shaft (5024) connected with the periphery of the rotating disk (5021), the first rotating shaft (5023) and the second rotating shaft (5024) are connected through the circle center of the rotating disk (5021), and the first rotating shaft (5023) and the second rotating shaft (5024) are respectively connected with a front end connecting rod (5026) and a rear end connecting rod (5027) through connecting rod rotating shafts (5025).

7. The bag opening and filling mechanism according to claim 3, wherein the first shell body (511) and the second shell body (512) are provided with detection holes (5110) on the contact surfaces with the packaging bag, and the air pipe in the second suction cup unit (500) is provided with a negative pressure detection part.

8. The bag opening and filling mechanism according to claim 1, wherein two suction cups are provided on the two opposite suction cup connecting rods (5011) at opposite positions, respectively.

9. Use of a bag opening filling mechanism according to any of claims 1-8, characterized in that it comprises the following steps:

s51, when the second sucking disc unit (500) is closed towards the middle, the packaging bag moves upwards, and the bag supporting unit at the bottom of the packaging bag drives the bottom of the packaging bag to move upwards simultaneously; after the two suction discs in the second suction disc unit (500) are completely attached to the corresponding surfaces of the packaging bag, the two suction discs in the second suction disc unit (500) move in opposite directions to suck the packaging bag open, and when the two suction discs reach a set distance, the control mechanism (9) controls the shell-shaped bodies in the bag opening and discharging unit (510) to move from a closing position to an opening position;

s52, the two suckers continue to move reversely until the first elastic part (504) and the corresponding shell-shaped body press the packaging bag, and after the shell-shaped body is at the opening position, the detection hole (5110) and the suction surface of the corresponding sucker are just separated by the bag surface of the packaging bag;

s53, the control mechanism (9) obtains the negative pressure value of the sucker through the negative pressure detection parts on the two sides, if the negative pressure value on one side of the packaging bag does not reach the set value, the control mechanism (9) controls the corresponding mechanism not to work, otherwise, the step S54 is executed;

s54, the control mechanism (9) controls the material to enter the opened packaging bag through a blanking gap formed between the first shell body (511) and the second shell body (512) of the opening station.