CN220076724U

CN220076724U - Weighing and packaging integrated machine

Info

Publication number: CN220076724U
Application number: CN202320751876.4U
Authority: CN
Inventors: 郭丽; 苏健新
Original assignee: Shenzhen Gk Plastics Co ltd
Current assignee: Shenzhen Gk Plastics Co ltd
Priority date: 2023-04-01
Filing date: 2023-04-01
Publication date: 2023-11-24
Anticipated expiration: 2033-04-01

Abstract

The utility model relates to a weighing and packaging integrated machine, which belongs to the technical field of automatic equipment and comprises a frame, a supporting piece, a charging box and a weight adjusting piece, wherein a placing table is arranged on the frame, one side surface of the placing table is used for placing packaging bags, and a gravity sensor is arranged on the placing table; the opening part is arranged on the frame and used for opening the opening of the packaging bag; the charging box is arranged on external equipment and is used for containing mixed plastic particles, a discharging pipe is arranged on the charging box, the mixed plastic particles can enter the packaging bag from the discharging pipe of the charging box, and a valve is arranged on the discharging pipe; the weight adjusting piece is arranged on the frame and is used for adjusting the weight of plastic particles in the packaging bag. The utility model has the effect of improving the safety of the mixture during the filling and packaging processes.

Description

Weighing and packaging integrated machine

Technical Field

The utility model relates to the technical field of automatic equipment, in particular to a weighing and packaging integrated machine.

Background

At present, the plastic particles/master batches and the functional powder are generally poured into a stirring barrel for uniformly stirring, and then guided out from a discharging position for next plastic wire production and processing, and finally weighing and packaging are carried out.

In the related art, after plastic particles with different specifications are uniformly mixed in a mixing drum, the plastic particles can be manually controlled to come out from a discharge hole of the mixing drum and enter a packaging bag, the packaging bag is weighed on a scale, after the packaging bag approaches to the standard weight, the discharge hole is manually closed, trial addition or extraction is performed for a plurality of times according to the actual weight in the packaging bag until the packaging bag reaches the standard weight, and then a special sealing tool is manually used for sealing the packaging bag. And then continue packaging of the next bag of product.

For the related art, there is a defect that in the process of loading and packaging, an operator needs to be located at the station for a long time, and a mixture of plastic particles and powder material emits more dust in the process of loading, so that the operator can suck more dust into a body, and the safety of the mixture in the process of loading and packaging is lower.

Disclosure of Invention

In order to improve the safety of the mixture in the process of filling and packaging, the utility model provides a weighing and packaging integrated machine.

The utility model provides a weighing and packaging integrated machine which adopts the following technical scheme:

the weighing and packaging integrated machine comprises a frame, a spreading piece, a charging box and a weight adjusting piece, wherein a placing table is arranged on the frame, one side surface of the placing table is used for placing packaging bags, and a gravity sensor is arranged on the placing table; the opening part is arranged on the frame and used for opening the opening of the packaging bag; the charging box is arranged on external equipment and is internally used for containing mixed plastic particles, a discharging pipe is arranged on the charging box, the mixed plastic particles can enter the packaging bag from the discharging pipe of the charging box, and a valve is arranged on the discharging pipe; the weight adjusting piece is arranged on the frame and is used for adjusting the weight of plastic particles in the packaging bag.

Through adopting above-mentioned technical scheme, when packing into the wrapping bag with the plastic granules after mixing, will place the wrapping bag earlier and place the bench, then the inner wall that struts the piece can make wrapping bag be close to opening one side keeps the state of opening all the time, the mouth of pipe of one side that the charging box was kept away from to the discharging pipe can aim at the opening part of wrapping bag simultaneously, then the valve on the charging box can be opened, so that the plastic granules that mix well in the charging box is packed to the wrapping bag from the discharging pipe, when the numerical value of the gravity sensor of placing the bench reaches to be close to predetermined range, the valve in the charging box can be closed, at this moment through the weight regulating part on the frame, take out the plastic granules that surpass predetermined range in the wrapping bag or add the plastic granules in the wrapping bag, so that the operation of packing into the wrapping bag with plastic granules can be accomplished, this kind of design mode just need place the wrapping bag in the predetermined position of placing the bench through the manual work, then need not the staff be in the station of wrapping bag for a long time, thereby can reduce the dust that the staff inhale, and help promoting the security of mixture in the charging and packaging process.

Optionally, the valve is an electromagnetic valve, and the electromagnetic valve is electrically connected with the gravity sensor.

Through adopting above-mentioned technical scheme, because the valve sets up to the form of solenoid valve, so when gravity sensor's numerical value is close predetermined range, gravity sensor can transmit an electric signal to make the valve close, thereby alright realize the operation of automatic control valve switching, also can promote simultaneously and weigh the degree of automation of encapsulation all-in-one.

Optionally, the expanding piece comprises a lifting cylinder, an expanding cylinder, a connecting plate and an expanding plate, wherein the lifting cylinder is arranged on the frame, and a plurality of lifting cylinders are arranged; the number of the expanding cylinders is multiple, and the expanding cylinders are arranged on the piston rods of the lifting cylinders; the plurality of connecting plates are arranged, and one side of each connecting plate is connected with the piston rod of the opening cylinder; the expansion plates are arranged in a plurality, the expansion plates are respectively connected with a plurality of connecting plates at one sides of the piston rods of the expansion cylinders, the expansion plates move towards the directions close to or far away from the axis of the packaging bag, and one side of each expansion plate far away from the axis of the packaging bag is used for being abutted against the inner wall of the packaging bag.

Through adopting above-mentioned technical scheme, when the wrapping bag is placed in the preset position of placing the platform, the piston rod of lift cylinder can stretch out in order to with propping up a holistic removal to the ascending preset position of vertical direction, a plurality of boards that prop up can be in the wrapping bag this moment and be close to one side of opening department, then a plurality of piston rods that prop up the cylinder can retract in order to make a plurality of boards that prop up move towards the direction of keeping away from the wrapping bag axis, until the inboard wall looks butt of board and wrapping bag that struts, the opening of wrapping bag can open and be the biggest state this moment, thereby can avoid plastic granules to appear unrestrained phenomenon when packing into the wrapping bag.

Optionally, still include grip block and centre gripping cylinder, grip block sliding connection is in the frame, the grip block can be towards being close to or keep away from the direction motion of wrapping bag axis, the grip block is provided with a plurality of, and is a plurality of the grip block is used for the butt wrapping bag with on the corresponding lateral wall of the inside wall of strut board looks butt.

Through adopting above-mentioned technical scheme, when a plurality of expansion plates expand wrapping bag opening to the maximum state, the piston rod of a plurality of centre gripping cylinders can stretch out to make a plurality of grip blocks move towards the direction that is close to the wrapping bag axis, until on the grip block and the wrapping bag with the corresponding lateral wall of the inside wall of expansion plate looks butt, so that the combined action of grip block and expansion block, with form the centre gripping effect to the wrapping bag one side that is close to the opening part, thereby can avoid the phenomenon that the wrapping bag topples over when packing into the wrapping bag with plastic pellet.

Optionally, the discharging pipe is flexible pipe form, be provided with flexible cylinder in the frame, flexible cylinder's piston rod with the flexible part of discharging pipe is connected, flexible cylinder is used for making the discharging pipe is close to or keep away from wrapping bag opening direction motion.

Through adopting above-mentioned technical scheme, because the discharging pipe sets up to flexible pipe form, so prop out the piece and prop out the opening of wrapping bag when, the piston rod of flexible cylinder can stretch out to make the discharging pipe keep away from one side of charging box and can stretch out, so that the ejection of compact department of discharging pipe is in the open-ended top of wrapping bag, then can pour plastic granules into the wrapping bag when the valve is opened, this kind of design mode can avoid propping out the piece and prop out the piece and take place to interfere with the discharging pipe when propping out the wrapping bag opening part.

Optionally, the placing table is slidably connected to the frame, and a sealing member is further provided on the frame, and the sealing member is used for sealing the filled packaging bag.

Through adopting above-mentioned technical scheme, when the weight of plastic granules is in predetermined within range in the wrapping bag, strut board and grip block can be released and be connected with the wrapping bag, place the platform and can slide this moment to on the station with the wrapping bag slip to sealing member, then just can seal the operation to the opening part of packing belt through the sealing member, thereby just can accomplish weighing and encapsulation operation to plastic granules.

Optionally, the weight adjusting part comprises a suction air pump and a suction air pump, an input port and an output port of the suction air pump are respectively communicated with the inside of the charging box and the packaging bag, an input port and an output port of the suction air pump are respectively communicated with the inside of the packaging bag and the charging box, and the suction air pump are electrically connected with the gravity sensor.

By adopting the technical scheme, when the numerical value on the gravity sensor is close to the preset range value, the valve on the discharging pipe can be closed, if the numerical value on the gravity sensor exceeds the preset range value, the sucking air pump can suck out plastic particles in the packaging bag into the charging box, so that the weight of the plastic particles in the packaging bag is in the preset range value, and if the numerical value on the gravity sensor is lower than the preset range value, the sucking air pump can slowly transfer the plastic particles in the charging box into the packaging bag, so that the weight of the plastic particles in the packaging bag is in the preset range value, and the weight can be kept in the preset range when the plastic particles are weighed.

Optionally, be provided with visual sensor in the frame, visual sensor is used for detecting whether the wrapping bag is in place the bench, visual sensor with the strut member and the centre gripping cylinder electricity is connected.

Through adopting above-mentioned technical scheme, because of visual sensor's setting, so when the staff places the wrapping bag on placing the platform, visual sensor can give and prop out a piece and a clamping cylinder signal of telecommunication to make prop out a piece and the opening of grip block mutually supporting the wrapping bag and be the biggest gesture, in order to make things convenient for plastic granules's weighing, thereby can further promote the degree of automation of weighing encapsulation all-in-one.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. because of the arrangement of the opening piece and the weight adjusting piece, when mixed plastic particles are required to be filled into a packaging bag, the packaging bag is placed on the placing table firstly, then the opening piece can enable the inner wall of the packaging bag, which is close to one side of the opening, to be always kept in an opening state, meanwhile, a pipe opening of one side of the discharging pipe, which is far away from the charging box, can be aligned to the opening of the packaging bag, then a valve on the charging box can be opened, so that the mixed plastic particles in the charging box are filled into the packaging bag from the discharging pipe, when the numerical value of a gravity sensor of the placing table is close to a preset range, the valve in the charging box can be closed, at the moment, the plastic particles, which are beyond the preset range, in the packaging bag are taken out or the plastic particles are added into the packaging bag through the weight adjusting piece on the rack, so that the plastic particles in the packaging bag are within the preset range, and the operation of filling the plastic particles into the packaging bag can be completed.

2. When the packaging bag is placed at the preset position of the placing table, the piston rods of the lifting cylinders extend to integrally move the opening part to the preset position in the vertical direction, at the moment, the opening plates are positioned on one side of the packaging bag close to the opening part, then the piston rods of the opening cylinders retract to enable the opening plates to move in the direction away from the axis of the packaging bag until the opening plates are abutted against the inner side wall of the packaging bag, at the moment, the opening of the packaging bag is opened to be in the maximum state, and therefore the phenomenon that plastic particles are scattered when being filled into the packaging bag can be avoided;

3. because of the setting of grip block and centre gripping cylinder, when a plurality of expansion plates prop up wrapping bag opening to the maximum state, the piston rod of a plurality of centre gripping cylinders can stretch out to make a plurality of grip blocks move towards the direction that is close to the wrapping bag axis, until on the grip block and the wrapping bag with the corresponding lateral wall of the inside wall of expansion plate looks butt, so that the combined action of grip block and expansion block, with form the centre gripping effect to the wrapping bag one side that is close to the opening part, thereby can avoid the phenomenon that the wrapping bag topples over when packing into the wrapping bag with plastic pellet.

Drawings

Fig. 1 is a schematic structural diagram of a weighing and packaging integrated machine in this embodiment.

Fig. 2 is a schematic diagram of the structure of the spreader, the clamping cylinder, and the clamping block in this embodiment.

Reference numerals illustrate: 1. a frame; 11. a placement table; 2. a spreader; 21. a lifting cylinder; 22. opening the cylinder; 23. a connecting plate; 24. an opening plate; 3. a charging box; 31. a discharge pipe; 32. a valve; 4. a weight adjusting member; 41. a suction air pump; 42. sucking out the air pump; 5. a clamping plate; 6. a clamping cylinder; 7. a telescopic cylinder; 8. a sealing member; 9. a transfer box; 10. visual sensor.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-2.

The embodiment of the utility model discloses a weighing and packaging integrated machine. Referring to fig. 1 and 2, the weighing and packaging integrated machine comprises a frame 1, a spreader 2, a charging box 3 and a weight adjusting part 4, specifically, a placing table 11 is arranged on the frame 1, the placing table 11 is in a cuboid shape as a whole, the upper surface of the placing table 11 is used for placing a packaging bag, in the embodiment, the opening section of the packaging bag is elliptical when the opening is completely spread, and is in a cuboid shape as seen from the direction perpendicular to the axis of the opening, the packaging bag is a kraft paper bag, the packaging bag is used for filling mixed plastic particles, and a gravity sensor (not shown in the figure) is arranged in the placing table 11 for weighing the plastic particles in the packaging bag; the opening part 2 is arranged on the frame 1, the opening part 2 is used for opening the opening part of the packaging bag placed on the placing table 11 and keeping the packaging bag in an opening state when the plastic particles are poured into the packaging bag, the whole packaging box 3 is in a cone shape, one side surface of the packaging box 3 with larger cross section area is provided with an opening for placing the plastic particles into the packaging box 3, the packaging box 3 is fixedly arranged on the outer frame 1, the peripheral side outer wall of one side of the packaging box 3 with smaller cross section area is provided with a discharging pipe 31, one end pipe orifice of the discharging pipe 31 is communicated with the packaging box 3, plastic particles in the packaging box 3 can enter the packaging bag from the other end pipe orifice, and in the process of packaging bag filling, one end pipe orifice of the discharging pipe 31 far away from the packaging box 3 can be positioned right above the opening of the packaging bag, a valve 32 is arranged on the discharging pipe 31, the valve 32 is in a structure form of an electromagnetic valve, the valve 32 is electrically connected with a gravity sensor, and the valve 32 is used for controlling the on-off state of the discharging pipe 31; a weight adjusting member 4 is provided on the frame 1, the weight adjusting member 4 serving to maintain the weight of the plastic granules in the package within a predetermined range.

Referring to fig. 1 and 2, when mixed plastic particles are required to be filled into a packaging bag, the packaging bag is firstly placed at a preset position on the upper surface of the placing table 11, then the opening of the packaging bag is opened to the maximum state by the opening member 2, then the valve 32 is opened, so that the plastic particles in the charging box 3 move from the discharging pipe 31 into the packaging bag, when the numerical value on the gravity sensor approaches to a preset numerical range, the gravity sensor sends an electric signal to the valve 32 to enable the valve 32 to be closed, and finally the plastic particles exceeding the packaging bag are removed from the packaging bag or the lacking plastic particles are moved into the packaging bag by the weight adjusting member 4, so that the weighing operation of the plastic particles can be completed.

Referring to fig. 1 and 2, the spreader 2 includes a lifting cylinder 21, a spreading cylinder 22, a connecting plate 23 and a spreading plate 24, specifically, a housing of the lifting cylinder 21 is fixedly disposed on the frame 1, a piston rod of the lifting cylinder 21 stretches along a vertical direction, two lifting cylinders 21 are disposed, and the two lifting cylinders 21 are symmetrically disposed along an axis of the packaging bag; the two opening cylinders 22 are arranged, the shells of the two opening cylinders 22 are fixedly connected to the piston rods of the two lifting cylinders 21 so that the two opening cylinders 22 can synchronously move along the vertical direction, the piston rods of the opening cylinders 22 stretch in the horizontal plane, and the piston rods of the two opening cylinders 22 can move towards the directions approaching or separating from each other; the connecting plates 23 are in a cuboid thin plate shape, two connecting plates 23 are arranged, and one side of one side surface of the two connecting plates 23 with larger sectional areas is fixedly connected with piston rods of the two expanding cylinders 22 respectively; the spreader plates 24 can be arranged in an arc-shaped thin block structure, the spreader plates 24 are provided with two spreader plates 24, the two spreader plates 24 are respectively and fixedly connected to one side surface of the two connecting plates 23, which are far away from each other, the two spreader plates 24 are symmetrically arranged along the axis of the packaging bag, the arc inner sides of the two spreader plates 24 are positioned on one side surface of the two spreader plates 24, which are close to each other, and the arc outer sides of the spreader plates 24 are used for being abutted to the inner side walls of the packaging bag.

Referring to fig. 1 and 2, a clamping plate 5 and a clamping cylinder 6 are further arranged on the frame 1, the clamping plate 5 is also in the form of an arc-shaped thin block, the arc-shaped inner side of the clamping plate 5 has the same angle with the arc-shaped inner side of the opening plate 24, the clamping plate 5 is slidably connected to the frame 1, two clamping plates 5 are symmetrically arranged along the axis of the packaging bag, the two clamping plates 5 can move towards the directions approaching or separating from each other, the straight line where the moving paths of the two clamping plates 5 are located and the straight line where the moving paths of the two opening plates 24 are located are arranged in the same vertical plane, and the arc-shaped inner side of the clamping plate 5 is used for being abutted against the outer side wall of the packaging bag; the casing of clamping cylinder 6 is fixed to be set up in frame 1, clamping cylinder 6 is provided with two, the straight line that the piston rod telescopic direction place of two clamping cylinder 6 and the straight line that the piston rod telescopic direction place of two clamping cylinder 22 place are in same vertical plane, so when staff spare wrapping bag is placed on the preset position of placing the platform 11, lift cylinder 21 can stretch into the preset position department of wrapping bag with the piece that struts, two piece and two grip blocks can be in same high position department this moment, then prop up the cylinder 22 and can make two piece that struts the direction motion that keep away from each other, until prop up the piece and the wrapping bag inner wall butt and strut the wrapping bag opening to maximum state, then two clamping cylinder 6 can make two grip blocks be close to each other, until grip block and the lateral wall butt of wrapping bag, through the combined action of grip block and prop up the piece, form the centre gripping effect to one side that the wrapping bag is close to the opening department, thereby can avoid the phenomenon that topples over when pouring into the wrapping bag with the plastic granules as far as possible.

In addition, in this embodiment, the discharging pipe 31 is in a telescopic pipe structure, and the frame 1 is provided with the telescopic cylinder 7, the shell of the telescopic cylinder 7 is fixedly connected to the frame 1, the piston rod of the telescopic cylinder 7 is fixedly connected to the telescopic part of the discharging pipe 31, when the opening plate 24 and the clamping plate 5 act on the packaging bag, the piston rod of the telescopic cylinder 7 can stretch out to enable a pipe orifice at one side of the discharging port far away from the charging box 3 to be positioned right above the opening of the packaging bag, so that the opening plate 24 and the clamping plate 5 can be prevented from being opened and clamped at the opening of the packaging bag as far as possible, and interference with the discharging pipe 31 occurs.

Referring to fig. 1 and 2, a transfer box 9 is further provided, the transfer box 9 is fixedly arranged on the external frame 1, the transfer box 9 is also used for placing plastic particles, the transfer box 9 is communicated with the bottom of the charging box 3, the weight adjusting piece 4 comprises a suction air pump 41 and a suction air pump 42, the suction air pump 41 and the suction air pump 42 are fixedly arranged on the frame 1, wherein the output end of the suction air pump 41 is communicated with the interior of the packaging bag through a hose, and the input end of the suction air pump 41 is communicated with the transfer box 9 through the hose; the output end of the suction air pump 42 is communicated with the transfer box 9 through a hose, the input end is communicated with the inside of the packaging bag through a hose, and the suction air pump 41 and the suction air pump 42 are electrically connected with a gravity sensor, when the packaging bag is placed on a preset position on the upper surface of the placement table 11, the hose stretches into the inside of the packaging bag, and when the numerical value on the gravity sensor is close to a preset range value, the adding or taking-out operation of plastic particles in the packaging bag is selected according to the numerical value of the gravity sensor, so that the weight of the plastic particles in the packaging bag is kept within the preset range value.

Referring to fig. 1 and 2, in order to further enhance the functionality of the whole apparatus, there is also provided a first arrangement in which a placement table 11 is slidably connected to the frame 1 through a slide rail, a sealing member 8 is further provided on the frame 1, the sealing member 8 may be in a hot-melt type or a sewing type, and after the plastic particles are poured into the packaging bag and the weighing operation is completed, the placement table 11 slides to slide onto a station where the sealing member 8 is located, so as to seal the packaging bag.

Referring to fig. 1, a second vision sensor 10 is disposed on the frame 1, the vision sensor 10 is electrically connected with the opening cylinder 22 and the clamping cylinder 6, and when the packaging bag is placed on the placing table 11, the vision sensor 10 will open the opening of the packaging bag to the maximum posture by sending out an electric signal by the opening cylinder 22 and the clamping cylinder 6, so as to facilitate weighing of the plastic particles.

The embodiment of the utility model relates to a weighing and packaging integrated machine, which has the implementation principle that: when the mixed plastic particles need to be filled into the packaging bag, the packaging bag is firstly placed on the placing table 11, then the opening part of the packaging bag can be opened to the maximum state by the opening part 2, meanwhile, the valve 32 on the discharging pipe 31 can be opened to enable the plastic particles in the material filling box 3 to be poured into the packaging bag, when the numerical value on the gravity sensor is close to a preset range, the valve 32 can be closed, meanwhile, the weighing operation on the plastic particles can be completed by the weight adjusting part 4 according to the moving-in or moving-out of the plastic particles in the packaging bag, and the design mode does not need that staff is on a station for filling the packaging bag for a long time, so that dust inhaled by the staff can be reduced, and the safety of the mixture in the filling and packaging processes can be improved.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. Weigh encapsulation all-in-one, its characterized in that: the packaging machine comprises a frame (1), a spreading piece (2), a charging box (3) and a weight adjusting piece (4), wherein a placing table (11) is arranged on the frame (1), one side surface of the placing table (11) is used for placing packaging bags, and a gravity sensor is arranged on the placing table (11); the opening piece (2) is arranged on the frame (1), and the opening piece (2) is used for opening the opening of the packaging bag; the packaging box is characterized in that the packaging box (3) is arranged on external equipment, mixed plastic particles are contained in the packaging box (3), a discharging pipe (31) is arranged on the packaging box (3), the mixed plastic particles can enter the packaging bag from the discharging pipe (31) of the packaging box (3), and a valve (32) is arranged on the discharging pipe (31); the weight adjusting piece (4) is arranged on the frame (1), and the weight adjusting piece (4) is used for adjusting the weight of plastic particles in the packaging bag.

2. The weighing and packaging integrated machine according to claim 1, wherein: the valve (32) is a solenoid valve, and the solenoid valve is electrically connected with the gravity sensor.

3. The weighing and packaging integrated machine according to claim 1, wherein: the supporting piece (2) comprises a lifting cylinder (21), a supporting cylinder (22), a connecting plate (23) and supporting plates (24), wherein the lifting cylinder (21) is arranged on the frame (1), and a plurality of lifting cylinders (21) are arranged; the plurality of the stretching cylinders (22) are arranged, and the stretching cylinders (22) are arranged on the piston rods of the lifting cylinders (21); the plurality of connecting plates (23) are arranged, and one side of each connecting plate (23) is connected with a piston rod of the opening cylinder (22); the expansion plates (24) are arranged in a plurality, the expansion plates (24) are respectively connected with a plurality of connecting plates (23) and are far away from one side of a piston rod of the expansion cylinder (22), the expansion plates (24) move towards the direction close to or far away from the axis of the packaging bag, and one side surface of the expansion plates (24) far away from the axis of the packaging bag is used for being abutted against the inner wall of the packaging bag.

4. A weighing and packaging integrated machine according to claim 3, characterized in that: still include grip block (5) and centre gripping cylinder (6), grip block (5) sliding connection is in on frame (1), grip block (5) can be towards being close to or keep away from the direction motion of wrapping bag axis, grip block (5) are provided with a plurality ofly, and a plurality of grip block (5) are used for the butt wrapping bag with on the corresponding lateral wall of the inside wall of strut board (24) butt.

5. The weighing and packaging integrated machine according to claim 4, wherein: the discharging pipe (31) is in a telescopic pipe form, a telescopic cylinder (7) is arranged on the frame (1), a piston rod of the telescopic cylinder (7) is connected with a telescopic part of the discharging pipe (31), and the telescopic cylinder (7) is used for enabling the discharging pipe (31) to move towards a direction close to or far away from an opening of the packaging bag.

6. The weighing and packaging integrated machine according to claim 1, wherein: the placing table (11) is connected to the frame (1) in a sliding mode, a sealing piece (8) is further arranged on the frame (1), and the sealing piece (8) is used for sealing the filled packaging bag.

7. The weighing and packaging integrated machine according to claim 1, wherein: the weight adjusting piece (4) comprises an inhalation air pump (41) and an aspiration air pump (42), an input port and an output port of the inhalation air pump (41) are respectively communicated with the inside of the packaging box (3) and the inside of the packaging bag, an input port and an output port of the aspiration air pump (42) are respectively communicated with the inside of the packaging bag and the inside of the packaging box (3), and the inhalation air pump (41) and the aspiration air pump (42) are electrically connected with the gravity sensor.

8. The weighing and packaging integrated machine according to claim 4, wherein: the machine frame (1) is provided with a visual sensor (10), the visual sensor (10) is used for detecting whether a packaging bag is positioned on the placing table (11), and the visual sensor (10) is electrically connected with the opening piece (2) and the clamping cylinder (6).