CN220743572U - Filling structure of multi-row strip-shaped bag packaging machine - Google Patents

Abstract

The utility model discloses a filling structure of a multi-row strip-shaped bag packaging machine, which comprises an upper transverse sealing mechanism, a lower transverse sealing mechanism and a filling mechanism. The upper transverse sealing mechanism is fixedly arranged on the frame of the packaging machine, the lower transverse sealing mechanism is arranged on the frame of the packaging machine in a lifting manner, the lower transverse sealing mechanism is arranged at the lower end of the upper transverse sealing mechanism, the filling mechanism is arranged at the top of the frame of the packaging machine and comprises a filling needle, the filling needle is arranged on the frame in a lifting manner, and a filling nozzle of the filling needle is arranged corresponding to the upper transverse sealing mechanism and is used for filling the strip-shaped bags after transverse sealing. The filling structure of the multi-column strip-shaped bag packaging machine avoids the influence of filling materials on the welding of the transverse sealing position, ensures the welding quality of the transverse sealing, reduces the risk of liquid leakage or powder leakage, and improves the welding qualification rate of the transverse sealing of the product.

Description

Filling structure of multi-row strip-shaped bag packaging machine

Technical Field

The utility model relates to the technical field of packaging equipment, in particular to a filling structure of a multi-row strip-shaped bag packaging machine.

Background

The multi-column packing machine is a packing device widely used in the packing machinery industry at present. The packaging machine is efficient, stable and accurate, can complete multiple rows of packaging tasks simultaneously, and has higher production efficiency and application prospect. The multi-column packing machine is widely applied to the industries of food, medicine, chemical industry, daily chemicals and the like. The filling products of the multi-row strip-shaped bag packaging machine in the market are in a series of particles, powder, pills, liquid and the like, the liquid filling difficulty and the powder filling difficulty are the greatest, and along with the demand of productivity, the production speed and the product quality of the packaging machine required by customers are higher and higher. The multi-row strip-shaped bag packaging machine is high in running speed beat, the average running speed is 60 cut/min, the risk of liquid clamping in transverse sealing exists during liquid filling, the welding quality is affected after liquid clamping in transverse sealing, the risk probability of liquid leakage is high, and the qualification rate of products is reduced. When the powder or fine particle multi-row strip-shaped bag packaging machine is used for filling and sealing, the conditions that fine powder falls out untimely and powder is bleached exist, and the risk probability of transverse sealing and powder clamping is high.

At present, a multi-row strip-shaped bag packaging machine conventionally adopts a mode of welding by a single transverse sealing die, the transverse sealing die realizes two functions of welding and drawing a film, the welding, film drawing and filling are performed simultaneously, the allowed filling time is short, the liquid or powder cannot be isolated from the film material in the transverse sealing welding area, and the probability of transverse sealing liquid and powder clamping is high.

Disclosure of Invention

In view of the above, the utility model provides a filling structure of a multi-row strip-shaped bag packaging machine, which avoids the influence of filling materials on the welding of a transverse sealing position, ensures the welding quality of the transverse sealing, reduces the risk of liquid leakage or powder leakage, and improves the welding qualification rate of the transverse sealing of products.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a multi-column strip bag packing machine filling structure comprising:

the upper transverse sealing mechanism is fixedly arranged on the frame of the packaging machine;

the lower transverse sealing mechanism is arranged on the frame of the packaging machine in a lifting manner;

the filling mechanism is arranged at the top of the frame of the packaging machine;

the lower transverse sealing mechanism is arranged at the lower end of the upper transverse sealing mechanism, the filling mechanism comprises a filling needle, the filling needle is arranged on the frame in a lifting manner, and a filling nozzle of the filling needle is arranged corresponding to the upper transverse sealing mechanism.

Optionally, the upper transverse sealing mechanism comprises a first mounting bracket, an upper transverse sealing first die and an upper transverse sealing second die, and the molding side of the upper transverse sealing second die and the molding side of the upper transverse sealing first die are oppositely matched;

the first mounting bracket is fixedly connected to the frame, first guide structures are arranged on two sides of the first mounting bracket, and the first guide structures are used for driving the upper transverse sealing first die to move; the upper transverse sealing second die is driven to move through a second guide structure.

Optionally, the first guiding structure comprises a first guiding shaft, one end of the first guiding shaft is fixedly connected with the first traction plate, and the other end of the first guiding shaft is connected with the upper transverse sealing first die;

the second guide structure comprises a second guide shaft, one end of the second guide shaft is fixedly connected with the second traction plate, and the other end of the second guide shaft is connected with the upper transverse sealing second die;

the first traction plate and the second traction plate are driven to move oppositely through a first power driving mechanism, so that the upper transverse sealing first die and the upper transverse sealing second die are driven to be welded or separated in a closed mode.

Optionally, the first power driving mechanism comprises a first servo motor, a power output end of the first servo motor is connected with a first driving screw, a first threaded section and a second threaded section with opposite rotation directions are arranged on the first driving screw, the first threaded section is in threaded connection with the first traction plate, and the second threaded section is in threaded connection with the second traction plate;

the first servo motor is fixedly connected to the first mounting bracket.

Optionally, the lower transverse sealing mechanism comprises a second mounting bracket, a lower transverse sealing first die and a lower transverse sealing second die, and the molding side of the lower transverse sealing second die and the molding side of the lower transverse sealing first die are oppositely matched;

the second mounting bracket is vertically and slidably connected to the frame, and third guide structures are arranged on two sides of the second mounting bracket and used for driving the lower transverse sealing first die to move; and the lower transverse sealing second die is driven to move through a fourth guide structure.

Optionally, the third guiding structure comprises a third guiding shaft, one end of the third guiding shaft is fixedly connected with the third traction plate, and the other end of the third guiding shaft is connected with the lower transverse sealing first die;

the fourth guide structure comprises a fourth guide shaft, one end of the fourth guide shaft is fixedly connected with the fourth traction plate, and the other end of the fourth guide shaft is connected with the lower transverse sealing second die;

the third traction plate and the fourth traction plate are driven to move oppositely through a second power driving mechanism, so that the lower transverse sealing first die and the lower transverse sealing second die are driven to be welded or separated in a closed mode;

the second mounting bracket is connected with a second lifting mechanism, and the second lifting mechanism drives the second mounting bracket to lift.

Optionally, the second power driving mechanism comprises a second servo motor, a power output end of the second servo motor is connected with a second driving screw, a third threaded section and a fourth threaded section with opposite rotation directions are arranged on the second driving screw, the third threaded section is in threaded connection with the third traction plate, and the fourth threaded section is in threaded connection with the fourth traction plate.

Optionally, the second lifting mechanism comprises a third servo motor, the third servo motor is fixedly connected to the frame, and the power output end of the third servo motor drives the second mounting bracket to lift.

Optionally, the filling mechanism comprises a filling needle and a filling pump, the outlet end of the filling pump is connected with the inner cavity of the filling needle through a hose, and the filling pump is communicated with the liquid container through a pipeline; the filling needle is vertically and fixedly connected to the needle body supporting plate, and the needle body supporting plate is driven to lift through a fourth servo motor.

Optionally, the filling needle is provided with a plurality of, and a plurality of the filling needle parallel arrangement in on the needle body backup pad.

According to the technical scheme, the filling structure of the multi-row strip-shaped bag packaging machine provided by the utility model adopts the double transverse sealing mechanisms, the upper transverse sealing mechanism is fixed and is used for transverse sealing and welding the strip-shaped bags, the lower transverse sealing mechanism is of a welding traction structure, and the transverse sealing positions welded by the upper transverse sealing mechanism are welded for the second time while the strip-shaped bags are pulled to descend, so that the welding quality of the transverse sealing is ensured, and leakage of liquid or powder materials is effectively avoided. The filling needle is matched with lifting movement during filling, filling materials are thoroughly isolated from a transverse sealing welding area of the membrane material, the problems of transverse sealing liquid clamping and powder clamping are solved, the welding quality of transverse sealing is ensured, the leakage risk is reduced, and the welding qualification rate of the transverse sealing of products is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of an angle structure of a filling structure of a multi-row strip-shaped bag packaging machine according to an embodiment of the present utility model;

fig. 2 is a schematic view of another angle of a filling structure of a multi-column strip-shaped bag packaging machine according to an embodiment of the present utility model;

FIG. 3 is a schematic view of an angle structure of an upper transverse sealing mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic view of an angle structure of a lower transverse sealing mechanism according to an embodiment of the present utility model;

FIG. 5 is a schematic view of an angle of the upper transverse sealing mechanism and the lower transverse sealing mechanism assembled together according to the embodiment of the present utility model;

fig. 6 is a schematic diagram of working states of an upper transverse sealing mechanism and a lower transverse sealing mechanism in different states when a filling structure of a multi-row strip-shaped bag packaging machine provided by the embodiment of the utility model fills liquid;

fig. 7 is a schematic diagram of working states of an upper transverse sealing mechanism and a lower transverse sealing mechanism in different states when the filling structure of the multi-row strip-shaped bag packaging machine provided by the embodiment of the utility model fills powder.

Wherein:

1. the machine frame is provided with a machine frame,

2. a filling pump is arranged on the bottom of the filling tank,

3. the hose is provided with a flexible pipe,

4. the first lifting mechanism is provided with a first lifting mechanism,

5. the filling needle is provided with a filling needle,

501. a filling nozzle is arranged on the inner side of the container,

6. a longitudinal sealing mechanism is arranged on the upper surface of the base,

7. an upper transverse sealing mechanism is arranged on the upper transverse sealing mechanism,

701. a first mounting bracket 702, a first guiding structure 703, a first traction plate 704, a first driving screw rod, 705, a first servo motor 706, a second traction plate 707, a second guiding structure 708, an upper transverse sealing second mould 709, an upper transverse sealing first mould 710, a first guiding block,

8. a lower transverse sealing mechanism is arranged on the lower transverse sealing mechanism,

801. a second mounting bracket 802, a third guide structure 803, a third traction plate 804, a second driving screw rod, 805, a second servo motor 806, a fourth traction plate 807, a fourth guide structure 808, a lower transverse sealing second die 809, a lower transverse sealing first die 810, a second guide block 811, a third servo motor 812, a fifth guide shaft 813, a third driving screw rod,

9. strip-shaped bags.

Detailed Description

The utility model discloses a filling structure of a multi-row strip-shaped bag packaging machine, which avoids the influence of filling materials on the welding of a transverse sealing position, ensures the welding quality of the transverse sealing, reduces the risk of liquid leakage or powder leakage, and improves the welding qualification rate of the transverse sealing of products.

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 7, the filling structure of the multi-column strip-shaped bag packaging machine of the present utility model comprises an upper transverse sealing mechanism 7, a lower transverse sealing mechanism 8 and a filling mechanism. The upper transverse sealing mechanism 7 is fixedly arranged on the frame 1 of the packaging machine. The lower transverse sealing mechanism 8 is arranged on the frame 1 of the packaging machine in a lifting way. The lower transverse sealing mechanism 8 is arranged at the lower end of the upper transverse sealing mechanism 7, the filling mechanism is arranged at the top of the frame 1 of the packaging machine, the filling mechanism comprises a filling needle 5, the filling needle 5 is arranged on the frame 1 in a lifting manner, a filling nozzle 501 of the filling needle 5 is arranged corresponding to the upper transverse sealing mechanism 7, and the filling needle 5 is used for filling the strip-shaped bags 9 after transverse sealing. The upper transverse sealing mechanism 7 is used for carrying out transverse sealing welding on the film material at the corresponding position, and the upper transverse sealing mechanism 7 is fixed in position. The lower transverse sealing mechanism 8 performs film drawing and secondary welding on the transverse sealing, and the lower transverse sealing mechanism 8 ascends and descends along the film drawing direction.

The filling structure of the multi-row strip-shaped bag packaging machine adopts the double transverse sealing mechanisms, the upper transverse sealing mechanism 7 is fixed and is used for transversely sealing and welding the strip-shaped bags 9, the lower transverse sealing mechanism 8 is of a welding traction structure, and the transverse sealing positions welded by the upper transverse sealing mechanism 7 are welded for the second time while the strip-shaped bags 9 are drawn to descend, so that the welding quality of transverse sealing is ensured, and leakage of liquid or powder materials is effectively avoided. The lifting motion of the filling needle 5 is matched during filling, the filling material and the transverse sealing welding area of the membrane material are thoroughly isolated, the problems of transverse sealing liquid clamping and powder clamping are solved, the welding quality of transverse sealing is ensured, the leakage risk is reduced, and the welding qualification rate of the transverse sealing of products is improved.

Specifically, as shown in fig. 3, the upper cross-seal mechanism 7 includes a first mounting bracket 701, an upper cross-seal first die 709, and an upper cross-seal second die 708. The specific structures of the upper transverse sealing first mold 709 and the upper transverse sealing second mold 708 are structures in the prior art, and the structures of the upper transverse sealing first mold 709 and the upper transverse sealing second mold are not improved, and are not described herein. The die pressing side of the upper transverse sealing second die 708 and the die pressing side of the upper transverse sealing first die 709 are arranged in parallel and opposite in a matched mode, the matched mode means that the length and the width of the die pressing side of the upper transverse sealing second die 708 and the die pressing side of the upper transverse sealing first die 709 are identical, the set heights of the die pressing side of the upper transverse sealing second die 708 and the die pressing side of the upper transverse sealing first die 709 are identical, and therefore the die pressing side of the upper transverse sealing second die 708 and the die pressing side of the upper transverse sealing first die 709 can be conveniently clamped on two sides of the same position of a film material when the die pressing side of the upper transverse sealing second die 708 and the die pressing side of the upper transverse sealing first die are close to each other, and transverse sealing welding is conveniently achieved. The first mounting bracket 701 is fixedly connected to the frame 1, and first guiding structures 702 are arranged on two sides of the first mounting bracket 701, and the first guiding structures 702 are used for driving the upper transverse sealing first die 709 to move. The upper cross seal second die 708 is moved by the second guide structure 707.

Further, the first guiding structure 702 includes a first guiding shaft and a first guiding block 710, where one end of the first guiding shaft is fixedly connected to the first traction plate 703, and the other end is connected to the upper transverse sealing first mold 709. In order to limit the movement direction of the first guide shaft, thereby limiting the movement direction of the upper transverse sealing first die 709, a first guide block 710 is arranged on the first mounting bracket 701, a first limit chute extending along the movement direction of the upper transverse sealing first die 709 is arranged on the first guide block 710, and the first guide shaft is slidably connected in the first limit chute. The second guiding structure 707 comprises a second guiding axle having one end fixedly connected to the second traction plate 706 and the other end connected to the upper cross seal second mold 708. In order to limit the movement direction of the second guide shaft, the second guide shaft is slidably connected in a second limit chute on the first mounting bracket 701. The first guide shaft and the second guide shaft are arranged in parallel, and the first guide shaft and the second guide shaft are both provided with two. Wherein the first traction plate 703 and the second traction plate 706 are driven to move towards each other by a first power driving mechanism, so that the upper transverse sealing first die 709 and the upper transverse sealing second die 708 are driven to be welded or separated in a closing manner.

In an embodiment, the first power driving mechanism comprises a first servo motor 705, a power output end of the first servo motor 705 is connected with a first driving screw 704, and the power output end of the first servo motor 705 is connected with the first driving screw 704 through a coupling. In order to facilitate driving the upper cross seal first die 709 and the upper cross seal second die 708 to approach or separate from each other, a first threaded section and a second threaded section with opposite rotation directions are provided on the first driving screw 704, the first threaded section is in threaded connection with the first traction plate 703, and the second threaded section is in threaded connection with the second traction plate 706. It will be appreciated that the end of the first drive screw 704 is rotatably coupled to the first mounting bracket 701 by a bearing. The lengths of the first thread segment and the second thread segment are set according to actual movement requirements, and are not limited herein. The first servomotor 705 is fixedly connected to the first mounting bracket 701.

Wherein the lower cross seal mechanism 8 includes a second mounting bracket 801, a lower cross seal first die 809 and a lower cross seal second die 808, as shown in fig. 4. The specific structures of the lower cross seal first mold 809 and the lower cross seal second mold 808 are those in the prior art, and the structures of the two are not improved, and are not described herein. The molding side of the lower cross seal second mold 808 is disposed in parallel opposing engagement with the molding side of the lower cross seal first mold 809. The matching arrangement means that the length and the width of the lower transverse sealing first die 809 and the lower transverse sealing second die 808 are the same, and the setting heights are the same, so that when the die pressing sides of the lower transverse sealing first die 809 and the lower transverse sealing second die 808 are close to each other, the lower transverse sealing second die can be clamped on two sides of the same position of the film material, and transverse sealing welding and film drawing are conveniently realized. The second mounting bracket 801 is vertically and slidably connected to the frame 1, and third guiding structures 802 are arranged on two sides of the second mounting bracket 801, and the third guiding structures 802 are used for driving the lower transverse sealing first die 809 to move. The lower cross seal second die 808 is moved by fourth guide structure 807.

In one embodiment, third guiding structure 802 comprises a third guiding shaft, one end of which is fixedly connected to third traction plate 803, and the other end of which is connected to lower cross seal first mold 809. In order to limit the movement direction of the third guide shaft, thereby limiting the movement direction of the lower transverse sealing first die 809, a second guide block 810 is arranged on the second mounting bracket 801, a third limit chute extending along the movement direction of the lower transverse sealing first die 809 is arranged on the second guide block 810, and the third guide shaft is slidably connected in the third limit chute. The fourth guiding structure 807 comprises a fourth guiding shaft, one end of which is fixedly connected to the fourth traction plate 806 and the other end of which is connected to the lower cross seal second mold 808. In order to limit the movement direction of the fourth guide shaft, the fourth guide shaft is slidably connected to the second mounting bracket 801 in a fourth limit chute. The third guide shaft and the fourth guide shaft are arranged in parallel, and two third guide shafts and two fourth guide shafts are arranged. The third traction plate 803 and the fourth traction plate 806 are driven to move towards each other through the second power driving mechanism, so that the lower transverse sealing first die 809 and the lower transverse sealing second die 808 are driven to be welded or separated in a closing manner.

Further, the second power driving mechanism includes a second servo motor 805, a power output end of the second servo motor 805 is connected with a second driving screw 804, and a power output end of the second servo motor 805 is connected with the second driving screw 804 through a coupling. The second driving screw 804 is provided with a third threaded section and a fourth threaded section with opposite rotation directions, the third threaded section is in threaded connection with the third traction plate 803, and the fourth threaded section is in threaded connection with the fourth traction plate 806. It will be appreciated that the end of the second drive screw 804 is rotatably coupled to the second mounting bracket 801 by a bearing. The lengths of the third thread segment and the fourth thread segment are set according to actual movement requirements, and are not limited herein. A second servo motor 805 is fixedly attached to the second mounting bracket 801.

In order to facilitate lifting of the lower transverse sealing mechanism 8, the second mounting bracket 801 is connected with a second lifting mechanism, and the second lifting mechanism drives the second mounting bracket 801 to lift, so that lifting control of the lower transverse sealing mechanism 8 is realized. Specifically, the second lifting mechanism includes a third servo motor 811, as shown in fig. 5, where the third servo motor 811 is fixedly connected to the frame 1, and the power output end thereof drives the second mounting bracket 801 to lift. In an embodiment, the power output end of the third servo motor 811 is connected with the third driving screw 813, the third driving screw 813 is in threaded connection with the second mounting bracket 801, a fifth guiding shaft 812 is further arranged on the frame 1, the second mounting bracket 801 is slidably connected to the fifth guiding shaft 812, and the fifth guiding shaft 812 is used for guiding the second mounting bracket 801 to lift and lower, so that the second mounting bracket 801 is prevented from rotating along with the third driving screw 813 in the lifting process.

Specifically, the filling mechanism comprises a filling needle 5 and a filling pump 2, the outlet end of the filling pump 2 is connected with the inner cavity of the filling needle 5 through a hose 3, and the filling pump 2 is communicated with a liquid container (not shown in the figure) through a pipeline, and the liquid container is used for containing materials to be filled. The filling needle 5 is vertically and fixedly connected to the needle body supporting plate, and the needle body supporting plate is driven to lift through a fourth servo motor. The filling pump 2 is a ceramic plunger pump and comprises a push rod and a rotary valve, wherein liquid is pumped into the cavity through the push rod or pushed out of the cavity, the rotary valve is used for converting a mechanism connected with the cavity, so that the cavity is communicated with the liquid container when the plunger pump pumps liquid, the cavity is communicated with the filling needle 5 when the plunger pump pumps liquid, the filling amount is controlled by the push rod of the plunger pump controlled by one servo motor, and the conversion angle and the time of the cavity are accurately controlled by the other servo motor. The servo motors are arranged on the frame 1. Further, the filling needles 5 are provided in plurality, and the plurality of filling needles 5 are arranged in parallel on the needle body supporting plate. When the filling is stopped, in order to avoid the drip of the filling nozzle 501, the filling pump 5 controls the liquid at the position of the filling nozzle 501 to be sucked into the filling needle 5, so that the drip risk of the filling nozzle 501 is reduced.

The filling structure of the multi-row strip-shaped bag packaging machine is controlled by a servo motor, and accurate matching of all stations is realized in a control mode of an electronic cam.

When filling, the upper transverse sealing mechanism 7 stretches out and welds, the filling pump 2 starts to fill, the filling needle 5 automatically rises and falls along with the liquid level in the film strip package, the liquid splashing risk is reduced, the upper transverse sealing mechanism 7 is retracted and still keeps the filling state, the filling is stopped at the initial stage of downwards film pulling of the lower transverse sealing mechanism 8, when the film is pulled to a set position, the filling needle 5 descends to the lowest position, the distance of the filling nozzle 501 for polluting new film materials by liquid is shortened, and when the film pulling is finished, the film material in the area corresponding to the upper transverse sealing mechanism 7 is the new film material which is newly pulled and has no liquid, so that the upper transverse sealing mechanism 7 is ensured to be sealed without liquid clamping, and the transverse sealing liquid clamping is avoided. According to the filling structure of the multi-row strip-shaped bag packaging machine, the upper transverse sealing mechanism 7 is fixed and is used for transversely sealing and welding the strip-shaped bags 9, the lower transverse sealing mechanism 8 is of a welding traction structure, and the transverse sealing positions welded by the upper transverse sealing mechanism 7 are welded for the second time while the strip-shaped bags 9 are pulled to descend, so that the welding quality of transverse sealing is ensured. The filling needle 5 moves up and down during filling, the filling material is thoroughly isolated from the transverse sealing welding area of the membrane material, the problem of transverse sealing liquid clamping or powder clamping is solved, the welding quality of transverse sealing is ensured, the leakage risk is reduced, and the welding qualification rate of the transverse sealing of the product is improved.

The filling mechanism adopts screw mechanism filling to replace filling pump 2, filling needle 5 can not go up and down, starts the filling when last horizontal sealing mechanism 7 welds, and the filling is ended at the initial stage of drawing the membrane, makes last horizontal sealing mechanism 7 welded membrane material avoid with powder contact.

According to the filling structure of the multi-row strip-shaped bag packaging machine, the filling needle 5 is arranged on the frame 1 in a lifting manner, the upper transverse sealing mechanism 7 is welded once, the lower transverse sealing mechanism 8 is welded secondarily while drawing a film, and the problems of liquid clamping prevention and powder clamping prevention of transverse sealing are solved. The action flow and control mode of each specific component are finished by controlling the servo motor through the electronic cam curve, the electronic cam curve of the operation of the servo motor can accurately describe the operation beats, positions and time of each mechanism, and the action flow and control mode are control means in the prior art and are not repeated here.

When the multi-row strip-shaped bag packaging machine disclosed by the utility model is used for filling, the upper transverse sealing mechanism 7 is used for welding the nth transverse sealing position of the strip-shaped bags 9, and simultaneously, the filling nozzle 501 of the liftable filling needle 5 is used for filling materials into the nth separation bag body. During or after filling, the (n-1) th transverse sealing position is clamped by using the lower transverse sealing mechanism 8, and the films are pulled downwards and welded secondarily, so that each transverse sealing position is welded twice, and the transverse sealing welding quality is better. The n-th separation bag body filling material is finished before the n+1-th transverse sealing position of the strip-shaped bag 9 reaches the upper transverse sealing mechanism 7.

The filling structure of the multi-row strip-shaped bag packaging machine adopts the double transverse sealing mechanisms, the upper transverse sealing mechanism 7 is fixed and is used for transversely sealing and welding the strip-shaped bags 9, the lower transverse sealing mechanism 8 is of a welding traction structure, and the transverse sealing positions welded by the upper transverse sealing mechanism 7 are welded for the second time while the strip-shaped bags 9 are drawn to descend, so that the welding quality of transverse sealing is ensured, and leakage of liquid or powder materials is effectively avoided. The n-th separation bag body filling material is finished before the n+1th transverse sealing position of the strip bag 9 reaches the upper transverse sealing mechanism 7, so that the inner wall of the subsequent strip bag 9 is prevented from being splashed by the material caused by material filling to pollute the inner wall of the strip bag 9, no material on the inner wall of the strip bag 9 is ensured, the influence of the filling material on the welding of the transverse sealing position is avoided, the welding quality of the transverse sealing is ensured, the risk of liquid leakage or powder leakage is reduced, the welding qualification rate of the transverse sealing of products is improved, and the filling precision is improved.

In one embodiment, when the material is a liquid, the method comprises the following steps: first, when the upper transverse sealing mechanism 7 closes the nth transverse sealing position of the film material of the welded strip-shaped bag 9, the filling needle 5 starts to fill, the filling nozzle 501 of the filling needle 5 is spaced from the liquid level in the bag body by a first distance, and the filling nozzle 501 of the filling needle 5 rises synchronously with the liquid level in the bag body. Then, after the upper transverse sealing mechanism 7 is retracted to the film drawable position, the lower transverse sealing mechanism 8 clamps the n-1 th transverse sealing position of the film material of the strip-shaped bag 9, and the film is drawn downwards and welded secondarily, and the filling nozzle 501 of the filling needle 5 is always spaced from the liquid level in the bag body by a second distance. The filling nozzle 501 of the filling needle 5 continues to fill and descends simultaneously as the liquid level moves down due to the pulling of the film. The first distance and the second distance may be equal or unequal, and are specifically set by those skilled in the art according to needs. In this embodiment, when the filling is completed, the lower transverse sealing mechanism 8 stops filling until the lower transverse sealing mechanism 8 has a half of the film pulling stroke, the lower transverse sealing mechanism 8 keeps the film pulling state, the newly pulled film is conveyed downwards, no liquid contacts with the inner side surface of the newly pulled film, and at this time, liquid drops splashed when the newly pulled film is likely to exist, so that the height of the splashed liquid is very low, and the transverse sealing welding is not affected.

Wherein, the filling needle 5 is lifted by the first lifting mechanism 4, and the first lifting mechanism 4 is used for controlling the height of the filling nozzle 501 of the filling needle 5 from the liquid level so as to control the distance of the filling nozzle 501 from the liquid level. The lower transverse sealing mechanism 8 is controlled to lift through a second lifting mechanism, and the second lifting mechanism is used for controlling the height of the lower transverse sealing mechanism 8 so as to control whether the lower transverse sealing mechanism 8 pulls a film or returns.

Further, when the liquid filling amount in the bag body is 70% -80%, the upper transverse sealing mechanism 7 is welded, and the rest liquid filling amount is finished when the lower transverse sealing mechanism 8 descends to draw the film. When the lower transverse sealing mechanism 8 descends to draw the film to a half position, the filling is completed, and when the lower transverse sealing mechanism 8 finishes drawing the film, the n+1th transverse sealing position of the film material is opposite to the upper transverse sealing mechanism 7.

Specifically, referring to fig. 6, the flow of liquid filling and transverse sealing welding is shown, the film material of the strip-shaped bag 9 is rolled into a barrel shape by the longitudinal sealing mechanism 6 and is conveyed to the position of the transverse sealing mechanism, at this time, the state is a in fig. 6, and the specific structure of the longitudinal sealing mechanism 6 is the same as that of the longitudinal sealing mechanism of the packaging machine in the prior art. The film moves downwards, the upper transverse sealing mechanism 7 stretches out to transversely seal the strip-shaped bags 9, and the state is B in fig. 6. At the same time as the upper transverse sealing mechanism 7 is closed and welded, the filling pump 2 is started for filling, and the state is C in fig. 6. Along with the filling of liquid, the liquid level in strip bag 9 rises, in order to make filling mouth 501 and the liquid of filling needle 5 contactless, prevent liquid splash, filling mouth 501 keeps first distance with the liquid level, first elevating system pulls filling needle 5 synchronous rising, and rising speed and displacement are correlated with liquid filling speed, specifically can adopt liquid level sensor to monitor the filling liquid level, and liquid level height parameter conveys the controller, by controller control first elevating system control filling needle 5 to make filling mouth 501 contactless liquid reduces splash and gush up the liquid height, makes the filling liquid splash not to the inner membrance of new drawing the membrane material as far as possible, and the state at this moment is D. After the upper transverse sealing mechanism 7 meets the welding time, the upper transverse sealing mechanism 7 is retracted, the filling pump 2 is still in a filling state, the liquid level in the bag body is increased, the filling needle 5 is also increased, and the lower transverse sealing mechanism 8 stretches out to clamp the transverse sealing at the corresponding position, and the state is E in fig. 6. It can be understood that in the above process, the welded transverse seal of the upper transverse seal mechanism 7 is the nth transverse seal, the transverse seal clamped by the lower transverse seal mechanism 8 is the nth-1 transverse seal, and the nth-1 transverse seal is the transverse seal welded before the nth transverse seal.

When the upper transverse sealing mechanism 7 is retracted to a certain position, after the lower transverse sealing mechanism 8 is extended to a certain position, the lower transverse sealing mechanism 8 descends to draw the film, and filling is completed when the film is drawn to a half position of a stroke. When filling in the pulled film state, the filling needle 5 is in a descending state, so that the filling nozzle 501 needs to be ensured not to contact with liquid, the risks of liquid splashing and liquid surging are minimized, and liquid drops are prevented from splashing on the inner side surface of the new pulled film material as much as possible, and the state is F in fig. 6. According to the filling time requirements of different filling amounts, filling parameters are distributed, in one embodiment, 70% -80% of the filling amount is completed when the upper transverse sealing mechanism 7 is welded, and 20% -30% of the filling amount is completed when the film is pulled downwards. In other embodiments, the ratio may be adjusted appropriately according to the characteristics of different liquids.

When the filling is completed, the lower transverse sealing mechanism 8 pulls the film at a half stroke position, the lower transverse sealing mechanism 8 is in a film pulling state, the filling is stopped at the moment, the newly pulled film material is conveyed downwards, no liquid is in contact with the newly pulled film material at the moment, and the state is G in fig. 6. When the lower transverse sealing mechanism 8 pulls the film to the final stage, that is, when the transverse sealing welding area of the film passes through the filling nozzle 501, the filling is stopped already after the transverse sealing welding area passes through the filling nozzle 501, the filling nozzle 501 has no liquid, the film of the next transverse sealing welding area can be ensured to have no liquid contact, the welding reliability of the transverse sealing welding film is ensured, and the state is H in fig. 6.

When the lower transverse sealing mechanism 8 finishes pulling the film, the n+1th transverse sealing welding area of the film material is opposite to the upper transverse sealing mechanism 7, and the lower transverse sealing mechanism 8 is about to be released, and the state is I in fig. 6. After the film pulling is completed, the upper transverse sealing mechanism 7 stretches out to transversely seal the n+1th transverse sealing welding area of the film material, and the lower transverse sealing mechanism 8 is loosened, and the state is B in fig. 6. According to the flow, the liquid filling and transverse sealing welding sealing actions of the multi-row strip-shaped bag packaging machine are realized through the sequential circulation actions, and the transverse sealing welding liquid clamping prevention filling is realized. In fig. 6, the various states of filling with liquid material and welding with transverse seals are provided in the same figure in order to compare the displacement of the strip-shaped bags 9 in relation to the film pulling.

When the filling material is powder, the method comprises the following steps: when the upper transverse sealing mechanism 7 closes the nth transverse sealing position of the welding film material, starting to fill the powder until the powder reaches the filling amount; the upper transverse sealing mechanism 7 is retracted to a film drawable position, the lower transverse sealing mechanism 8 clamps the n-1 th transverse sealing position of the film material, and the film is downwards drawn and simultaneously welded for the second time, when the film drawing of the lower transverse sealing mechanism 8 is finished, the n+1 th transverse sealing position of the film material is opposite to the upper transverse sealing mechanism 7, so that the n+1 th transverse sealing welding area is the newly drawn film material, and the powder filling is finished, so that the filled powder is prevented from being stained on the inner side of the film material. When the powder or the granular materials are filled, the powder or the granules directly and freely fall into the strip-shaped bag, so that the risk of splashing is avoided. When the filling material is powder or particles, the filling can be completed in the welding stage of the upper transverse sealing mechanism 7. The filling of the welding stage of the upper transverse sealing mechanism 7 is completed, the lower transverse sealing mechanism 8 pulls out the new film material, and powder or particles cannot adhere to the newly pulled film material, so that the problem that the transverse sealing welding is affected by powder suppression is solved.

In an embodiment, referring to fig. 7, the flow of the powder filling and transverse sealing welding operation is shown, the film material of the strip-shaped bag 9 is rolled into a barrel shape by the longitudinal sealing mechanism 6, and the state is a in fig. 7, and the specific structure of the longitudinal sealing mechanism 6 is the same as that of the longitudinal sealing mechanism of the packaging machine in the prior art. The film material moves downwards, and the upper transverse sealing mechanism 7 stretches out to transversely seal the rolled film, and the state is b in fig. 7. At the same time as the upper transverse sealing mechanism 7 is closed and welded, the solid powder or granule filling is opened, and the state is c in fig. 7. The filling mechanism continues to fill while the upper transverse sealing mechanism 7 is welded, and the powder or granular product gradually increases in the strip-shaped bags, at this time in the state d in fig. 7. When the upper transverse sealing mechanism 7 meets the welding time, the upper transverse sealing mechanism 7 is retracted, the filling is finished at this time, the powder or the particles reach the filling amount, and the probability of fine powder dusting exists on the inner side of the film at this time, and the state is e in fig. 7. When the upper transverse sealing mechanism 7 is retracted to a certain position, the lower transverse sealing mechanism 8 extends out, after the lower transverse sealing mechanism 8 stretches out to be in place, the lower transverse sealing mechanism 8 clamps the film material to descend and pull the film, and when the film is pulled, powder is blown out to fall into the film material of the strip-shaped bag 9 along with pulling out of a new film material, and the state is f in fig. 7. When the lower transverse sealing mechanism 8 finishes pulling the film, the next transverse sealing welding area of the film material is opposite to the upper transverse sealing mechanism 7, at the moment, the film material of the transverse sealing welding area corresponding to the upper transverse sealing mechanism 7 is not in fine powder contact, and is a new film which is pulled down, the lower transverse sealing mechanism 8 is about to be released, and the state is g in fig. 7. In fig. 7, the various states of powder filling and transverse seal welding are arranged in the same figure in order to compare the displacement of the strip-shaped bag 9 in film drawing. After the film pulling is completed, the upper transverse sealing mechanism 7 stretches out to transversely seal the next transverse sealing welding area of the film material, and the lower transverse sealing mechanism 8 is loosened, and the state is b in fig. 7. Through the flow description, the powder or particle filling and transverse sealing welding and sealing actions of the multi-row strip-shaped bag packaging machine are realized through the sequential circulation actions, and the transverse sealing welding powder clamping prevention filling is realized.

In the description of the present embodiment, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present embodiment.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present embodiment, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A multi-column strip bag packing machine filling structure, comprising:

the upper transverse sealing mechanism is fixedly arranged on the frame of the packaging machine;

the lower transverse sealing mechanism is arranged on the frame of the packaging machine in a lifting manner;

the filling mechanism is arranged at the top of the frame of the packaging machine;

the lower transverse sealing mechanism is arranged at the lower end of the upper transverse sealing mechanism, the filling mechanism comprises a filling needle, the filling needle is arranged on the frame in a lifting manner, and a filling nozzle of the filling needle is arranged corresponding to the upper transverse sealing mechanism.

2. The multi-row strip-shaped bag packaging machine filling structure according to claim 1, wherein the upper transverse sealing mechanism comprises a first mounting bracket, an upper transverse sealing first die and an upper transverse sealing second die, and the die pressing side of the upper transverse sealing second die is arranged in opposite fit with the die pressing side of the upper transverse sealing first die;

the first mounting bracket is fixedly connected to the frame, first guide structures are arranged on two sides of the first mounting bracket, and the first guide structures are used for driving the upper transverse sealing first die to move; the upper transverse sealing second die is driven to move through a second guide structure.

3. The multi-row strip-shaped bag packing machine filling structure according to claim 2, wherein the first guiding structure comprises a first guiding shaft, one end of the first guiding shaft is fixedly connected with a first traction plate, and the other end of the first guiding shaft is connected with the upper transverse sealing first die;

the second guide structure comprises a second guide shaft, one end of the second guide shaft is fixedly connected with the second traction plate, and the other end of the second guide shaft is connected with the upper transverse sealing second die;

the first traction plate and the second traction plate are driven to move oppositely through a first power driving mechanism, so that the upper transverse sealing first die and the upper transverse sealing second die are driven to be welded or separated in a closed mode.

4. The filling structure of the multi-row strip-shaped bag packaging machine according to claim 3, wherein the first power driving mechanism comprises a first servo motor, a power output end of the first servo motor is connected with a first driving screw, a first threaded section and a second threaded section with opposite rotation directions are arranged on the first driving screw, the first threaded section is in threaded connection with the first traction plate, and the second threaded section is in threaded connection with the second traction plate;

the first servo motor is fixedly connected to the first mounting bracket.

5. The multi-row strip-shaped bag packaging machine filling structure according to claim 1, wherein the lower transverse sealing mechanism comprises a second mounting bracket, a lower transverse sealing first die and a lower transverse sealing second die, and the die pressing side of the lower transverse sealing second die is arranged in opposite fit with the die pressing side of the lower transverse sealing first die;

the second mounting bracket is vertically and slidably connected to the frame, and third guide structures are arranged on two sides of the second mounting bracket and used for driving the lower transverse sealing first die to move; and the lower transverse sealing second die is driven to move through a fourth guide structure.

6. The filling structure of a multi-row strip-shaped bag packaging machine according to claim 5, wherein the third guiding structure comprises a third guiding shaft, one end of the third guiding shaft is fixedly connected with a third traction plate, and the other end of the third guiding shaft is connected with the lower transverse sealing first die;

the fourth guide structure comprises a fourth guide shaft, one end of the fourth guide shaft is fixedly connected with the fourth traction plate, and the other end of the fourth guide shaft is connected with the lower transverse sealing second die;

the third traction plate and the fourth traction plate are driven to move oppositely through a second power driving mechanism, so that the lower transverse sealing first die and the lower transverse sealing second die are driven to be welded or separated in a closed mode;

the second mounting bracket is connected with a second lifting mechanism, and the second lifting mechanism drives the second mounting bracket to lift.

7. The filling structure of a multi-row strip-shaped bag packaging machine according to claim 6, wherein the second power driving mechanism comprises a second servo motor, a power output end of the second servo motor is connected with a second driving screw, a third threaded section and a fourth threaded section with opposite rotation directions are arranged on the second driving screw, the third threaded section is in threaded connection with the third traction plate, and the fourth threaded section is in threaded connection with the fourth traction plate.

8. The filling structure of a multiple row strip bag packing machine according to claim 6, wherein the second lifting mechanism comprises a third servo motor, the third servo motor is fixedly connected to the frame, and a power output end of the third servo motor drives the second mounting bracket to lift.

9. The filling structure of the multi-row strip-shaped bag packaging machine according to claim 1, wherein the filling mechanism comprises a filling needle and a filling pump, an outlet end of the filling pump is connected with an inner cavity of the filling needle through a hose, and the filling pump is communicated with a liquid container through a pipeline; the filling needle is vertically and fixedly connected to the needle body supporting plate, and the needle body supporting plate is driven to lift through a fourth servo motor.

10. The filling structure of a multiple row strip bag packing machine according to claim 9, wherein a plurality of the filling needles are provided, and a plurality of the filling needles are disposed in parallel on the needle body support plate.