Bag feeding type packaging machine

Abstract

The utility model relates to a bag feeding type packaging machine which is characterized in that a bag storage assembly and a stand column are erected at a bag feeding station, and a bag taking device for conveying packaging bags to a next working procedure is arranged on the stand column; the bag taking device comprises a rotating arm hinged to the stand column, a first swing rod hinged to a first extension beam fixedly installed on the peripheral face of the stand column and an overturning arm hinged between the rotating arm and the first swing rod, the rotating arm is located below the first swing rod, and the rotating planes of the rotating arm and the first swing rod are parallel to each other. A clamping plate assembly used for clamping packaging bags is connected to the end, away from the first swing rod, of the overturning arm, and a suction cup assembly used for sucking the packaging bags is arranged at the position, close to the clamping plate assembly, of an upper opening of the bag storage assembly. The driving mechanism is in transmission connection with the rotating arm and the suction cup assembly at the same time and drives the rotating arm and the suction cup assembly to rotate relative to the stand column. The bag taking and conveying device has the advantages that synchronous action of bag taking and bag conveying is achieved, the bag feeding process is simplified, and efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, specifically a bag-type packaging machine. Background Technology

[0002] Pre-packing bags, as an automated packaging equipment, are widely used in material packaging in various fields such as food, medicine, and daily chemicals.

[0003] Patent application number 202411814281.4 discloses a fully automatic rotary bag-feeding packaging machine for PE packaging bags, including a bag loading section, a bag picking section, a rotary bag clamping section, and a bag opening section, a weighing and unloading section, a re-inspection and weighing section, a punching section, a sealing section, and a finished product conveying section arranged sequentially along the circumference of the rotary bag clamping section. The bag loading section includes a bag storage component, a bag suction component, a bag clamping component, and a bag feeding component. The bag suction component and the bag clamping component form a bag separating mechanism. The bag storage component is adapted to push the stacked PE bags to move horizontally and be fed one by one to the bag feeding component by the bag separating mechanism. The bag picking section is located between the bag feeding component and the rotary bag clamping section and is adapted to flip the PE bags to the rotary bag clamping section. The rotary bag clamping section sequentially conveys the PE bags to each section for packaging processing and outputs them by the finished product conveying section.

[0004] The above-mentioned bag-type packaging machine has the following defects in actual use: 1. The PE bags are stacked by moving them horizontally through the bag storage component, and then the bag separation mechanism composed of the bag suction component and the bag clamping component sends the PE bags one by one to the bag feeding component. The bag picking part then uses a flipping method to send the PE bags to the rotating bag clamping part for rotating bag-type packaging production. This bag loading method is complicated and inefficient; 2. Most of the existing packaging bags are single-layer PE bags, including PE bags with and without seals. PE bags with seals are harder and the bag opening is not easy to open when picking them up, while PE bags without seals are softer and the bag opening is easy to open when picking them up. When the PE bags without seals are stacked in the bag storage component, and the pneumatic suction cup in the bag suction component sucks one side of the PE bag and moves it upward with the second lifting cylinder, the bag opening of the PE bag will automatically open downward, affecting the normal clamping of the subsequent bag clamping component, which will lead to errors in subsequent processes.

[0005] The aforementioned bag-type packaging machine uses a rotating bag clamping unit to transport PE bags to various parts for packaging processing. When used for packaging bags weighing more than 5 kg and with large bag sizes, the rotating bag clamping unit cannot hold the packaging bag or causes the packaging bag to be stretched and deformed or even torn due to gravity. At the same time, the movement of the packaging bag is unstable due to its large weight, thus affecting the packaging quality and efficiency.

[0006] To overcome the aforementioned deficiencies, patent application number 202521170141.8 discloses an indexing turntable assembly for a large bag-packing machine, comprising a frame, an indexing turntable, and circumferentially distributed bag clamping assemblies. Below the bag clamping assemblies is an adjustable load-bearing plate. The load-bearing plate is connected to the indexing turntable via a column. A vertical guide rod is mounted on the column, and an adjusting seat is slidably mounted on the vertical guide rod. The load-bearing plate is fixed to the adjusting seat and its height is locked by a tightening screw. An adjustable arc-shaped guide rail is mounted on the frame, with its outer surface clearance fitting with the end of the adjusting seat facing the center of the turntable. The curvature of the arc-shaped guide rail matches the rotation trajectory of the indexing turntable. A bearing is mounted on the adjusting seat, and the bearing rolls in contact with the arc-shaped guide rail.

[0007] However, while the aforementioned indexing turntable assembly overcomes the insufficient load-bearing capacity of the bag clamping assembly, it has the following drawbacks in actual use: 1. The adjusting seat and vertical guide rod are slidably connected, while the load-bearing plate is fixedly connected to the adjusting seat. The height of the adjusting seat and vertical guide rod is locked by tightening screws. Referring to the attached drawings in the patent document, it is unclear how the height is locked using tightening screws; 2. Bearings are installed on the adjusting seat, allowing the adjusting seat and load-bearing plate to slide on an arc-shaped guide rail. The document states that the arc-shaped guide rail allows the weight of the load-bearing plate to be transferred to the frame via the bearings and the arc-shaped guide rail. However, referring to the attached drawings in the patent document… Figure 2 As can be seen, the load-bearing pallet extends outwards. According to basic mechanics, the frame cannot effectively share the load of the pallet. Therefore, long-term heavy load will still cause the load-bearing pallet to bend and deform. 3. The column is an L-shaped metal component. The horizontal section is placed in the mounting groove and connected by bolts. When the load-bearing pallet carries excessively heavy materials, the horizontal section of the column bears vertical downward pressure. Long-term stress may cause the bolts to loosen, the column to deform, or even the column to detach from the mounting groove, which poses a safety hazard. Utility Model Content

[0008] The technical problem to be solved by this utility model is to provide a bag-type packaging that addresses the shortcomings of the prior art by enabling simultaneous bag picking and bag delivery, simplifying the bag loading process and improving efficiency.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a bag-type packaging machine, including a turntable, with a bag-loading station, a bag-opening station, a material-discharging station, a heat-sealing station, and a shaping station arranged sequentially along the outer circumference of the turntable. A bag-supporting component that reciprocates is provided between the bag-opening station and the material-discharging station. A conveying station for conveying finished products is provided below the shaping station. A bag-loading station is equipped with a bag storage assembly and a column for stacking packaging bags. A bag-picking device for conveying packaging bags to the next process is provided on the column. The bag-picking device includes a rotating arm hinged to the column. A first swing rod is hinged to a first extension beam fixedly installed on the outer periphery of the column, and a flipping arm is hinged between a rotating arm and the first swing rod. The rotating arm is located below the first swing rod, and the rotation planes of the two are parallel to each other. A clamping plate assembly for holding packaging bags is connected to one end of the flipping arm away from the first swing rod. A suction cup assembly for adsorbing packaging bags is provided at the opening of the bag storage assembly near the clamping plate assembly. A driving mechanism is provided inside the column. The driving mechanism is simultaneously connected to the rotating arm and the suction cup assembly and drives the rotating arm and the suction cup assembly to rotate relative to the column.

[0010] The present invention, which has the above-mentioned features, achieves synchronized bag picking and bag feeding by setting a drive mechanism that can synchronously drive the rotating arm and the suction cup assembly, simplifying the bag loading process and improving efficiency; only one drive mechanism is set to drive the suction cup assembly and the bag picking device, simplifying the overall structure of the bag loading station.

[0011] A further feature of this invention is that the suction cup assembly includes a first swing arm hinged to the column, a second swing arm connected to the first swing arm, a bag-retrieving rod, and a plurality of suction cups spaced apart on the bag-retrieving rod. One end of the bag-retrieving rod is connected to the second swing arm, and the other end is suspended in the air. The driving mechanism is connected to the first swing arm and drives the first swing arm to swing relative to the column.

[0012] The present invention, which has the above-mentioned features, is designed with a first swing arm and a second swing arm so that the suction action of the suction cup is a swing around an axis. When the suction cup adheres to one side of the upper part of the packaging bag, under the swing of the second swing arm, only the upper part of the packaging bag leaves the horizontal plane, and an angle is formed between the upper and lower parts of the packaging bag. When the second swing arm swings to the position, the clamping plate assembly clamps the bag opening and sends it to the next process. This suction action ensures that the PE bag without sealing will not open during suction.

[0013] A further feature of this invention is that the driving mechanism includes a pull rod driven by an external power source and a double-angled swing arm linked to the pull rod. A first transmission shaft passes through one corner of the double-angled swing arm, and a second swing rod is connected to the other corner. The rotation plane of the double-angled swing arm is parallel to the rotating arm. The rotating arm is connected to the first transmission shaft. A third swing arm is connected to the end of the second swing rod away from the double-angled swing arm. A second transmission shaft passes through the third swing arm, and the second transmission shaft is connected to the first swing arm.

[0014] The present invention, which has the above-mentioned features, employs this drive mechanism to ensure that the clamping plate assembly and the suction cup assembly move synchronously.

[0015] A further feature of this invention is that a connecting shaft is provided between the second swing arm and the first swing arm, and a first arc-shaped groove is provided at the end of the second swing arm near the first swing arm, and a fastener for connecting the first swing arm and the second swing arm is provided in the arc-shaped groove.

[0016] The present invention, which has the above-mentioned features, achieves angle adjustment of the first swing arm by setting an arc groove, thereby adjusting the tilt angle of the bag-picking rod and the suction cup to adapt to packaging bags of different thicknesses and materials, and improves the versatility of the equipment.

[0017] A further feature of this invention is that the bag storage assembly includes a liftable bag-laying tray, two bag-blocking plates erected on the bag-laying tray, and a rear abutment plate erected on the bag-laying tray. The bag-blocking plates are located on both sides of the bag-laying tray in the width direction, and the rear abutment plate is located on the side of the bag-laying tray away from the suction cup assembly in the length direction. A bag compartment for placing packaging bags is formed between the rear abutment plate and the bag-blocking plates. The lower end face of the bag-laying tray is provided with a screw assembly for adjusting the distance between the two bag-blocking plates. The screw assembly includes a screw rod arranged along the width direction of the bag-laying tray and at least one guide rod arranged parallel to the screw rod. Both ends of the screw rod and the guide rod are fitted with a fixing block and a sliding block. The fixing block is fixedly connected to the bag-laying tray, and the sliding block is fixedly connected to the bag-blocking plates. Two symmetrical adjustment windows are opened on the bag-laying tray, and the sliding block is placed in the adjustment windows. The screw rod is provided with symmetrical positive and negative threads, and the sliding block is provided with an internal thread that is threadedly connected to the screw rod. One end of the screw rod is provided with an adjustment handwheel.

[0018] The present invention, which has the above features, has the following characteristics: the spacing of the double-sided bag baffles can be adjusted synchronously by the forward and reverse threads of the screw, which can clamp packaging bags of different widths to prevent the packaging bags from tilting or shifting during stacking and ensure that the suction cup adsorption position is consistent each time the bag is taken out; the rear abutment plate restricts the displacement of the rear end of the packaging bag to ensure that the position of the packaging bag remains unchanged during operation.

[0019] A further feature of this invention is that a bag-supporting device is provided outside the turntable. The bag-supporting device includes a tray frame mounted outside the turntable. Several tray assemblies are evenly distributed on the tray frame, each corresponding to a workstation. Each tray assembly includes at least one first guide rod erected on the tray frame, a mounting plate slidably connected to the first guide rod, and a load-bearing tray connected to the mounting plate. The load-bearing tray includes a tray body and a base body fixedly connected to the lower end face of the tray body. One end of the mounting plate extends into the base body and is attached to the vertical surface of the base body. At least one waist-shaped groove is provided on the vertical surface of the base body, and a connection hole adapted to the waist-shaped groove is provided on the mounting plate.

[0020] The present invention, which has the above features, achieves height adjustment of the load-bearing pallet by cooperating with the waist-shaped groove and the connecting hole, and adapts to packaging bags of different sizes; by setting a seat at the bottom of the pallet to support the pallet, the overall load-bearing capacity of the load-bearing pallet is enhanced, and the pallet is prevented from bending and deforming under long-term heavy load.

[0021] A further feature of this invention is that the pallet frame includes several spaced-apart support arms, vertically arranged support rods, and a mounting ring surrounding the turntable. One end of each support arm extends into the turntable and connects thereto, while the other end connects to the upper end of the support rod. The mounting ring includes several end-to-end mounting guide plates. The lower end of each support rod is connected to the mounting guide plate, and the first guide rod is mounted on the mounting guide plate.

[0022] The present invention, which has the above-mentioned features, forms a stable cage structure by combining a support arm, a support rod, and a mounting ring. Multiple mounting guide plates disperse the load on the mounting ring, and the end-to-end connection of the mounting guide plates improves the overall strength of the mounting ring, thereby making the entire pallet frame evenly stressed and improving equipment safety. Since the mounting plate is slidably connected to the first guide rail, the load-bearing pallet is in the lowest position under natural conditions, and the mounting ring restricts the lowest position of the load-bearing pallet.

[0023] A further feature of this invention is that: the pallet frame is provided with a guide rail device that changes the height of the pallet during operation; the lower end face of the mounting plate is provided with rollers that are tactilely connected to the guide rail device; the guide rail device includes a guide component that guides the load-bearing pallet to rise and a guide rail component that allows the load-bearing pallet to slide; the guide component includes a guide rail concentric with the turntable and a guide power component that drives the guide rail to rise and fall; the guide rail includes a first arc-shaped guide rail arranged in the horizontal direction and a second arc-shaped guide rail that is inclined downward at the entry end of the first arc-shaped guide rail.

[0024] The present invention, which has the above features, guides the load-bearing pallet at its lowest position to rise by setting a guide component, and guides the load-bearing pallet to rotate with the turntable after it is raised by setting a guide rail component. The setting of the guide rail device meets the requirements of different work positions for the height of the load-bearing pallet. For example, when filling materials, it is necessary to raise the load-bearing pallet to ensure that the load-bearing pallet effectively supports the bottom of the packaging bag.

[0025] A further feature of this invention is that the guide rail device includes multiple guide rail assemblies spaced apart, and a vibration assembly is provided between each pair of guide rail assemblies. The vibration assembly includes a third arc-shaped guide rail concentric with the turntable and a guiding power assembly for driving the third arc-shaped guide rail to rise and fall.

[0026] The present invention, which has the above-mentioned features, uses the lifting and lowering movement of the third arc-shaped guide rail to drive the load-bearing tray to produce a small amplitude vibration, so that the material inside the packaging bag is evenly distributed, avoiding material accumulation that leads to poor sealing and improving packaging quality.

[0027] A further feature of this invention is that the guiding power assembly includes a guiding cylinder and a first swing arm hinged to the output end of the guiding cylinder. A connecting rod and a second guide rod are spaced apart on the first swing arm. A guide sleeve embedded in the frame is provided on the second guide rod. A second swing arm is provided on the connecting rod and the guide sleeve. The second swing arm is located above the first swing arm and the two are parallel. The second guide rod and the guide rail are an integral structure.

[0028] The present invention, which has the above-mentioned features, uses this linkage mechanism to realize the lifting and lowering movement of the guide rail, thereby increasing the stability of the lifting and lowering movement of the guide rail.

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0030] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0031] Figure 2 This is a schematic diagram of the bag-loading station in an embodiment of the present invention.

[0032] Figure 3 This is a schematic diagram of the structure of the bag-collecting station after removing the uprights, according to an embodiment of this utility model. Figure 1 .

[0033] Figure 4 This is a schematic diagram of the suction cup assembly and storage bag assembly in an embodiment of the present invention.

[0034] Figure 5 This is a schematic diagram of the lead screw assembly according to an embodiment of the present invention.

[0035] Figure 6This is a schematic diagram of the structure of the bag-collecting station after removing the uprights, according to an embodiment of this utility model. Figure 2 .

[0036] Figure 7 This is a schematic diagram of the installation of the bag-carrying device according to an embodiment of the present utility model.

[0037] Figure 8 This is a schematic diagram of the structure of the bag-carrying device according to an embodiment of the present utility model.

[0038] Figure 9 This is a schematic diagram of the structure of the tray assembly in an embodiment of the present utility model. Figure 1 .

[0039] Figure 10 This is a schematic diagram of the structure of the tray assembly in an embodiment of the present utility model. Figure 2 .

[0040] Figure 11 This is a schematic diagram of the structure of the tray frame according to an embodiment of the present utility model.

[0041] Figure 12 This is a schematic diagram of the guide rail device according to an embodiment of the present invention. Detailed Implementation

[0042] The present invention will be further described below with reference to the accompanying drawings:

[0043] like Figure 1-12 The illustrated bag packaging machine includes a frame 1 with a turntable 2 on it. Along the outer circumference of the turntable 2, there are sequentially arranged bag loading station a, bag opening station c, material unloading station d, heat sealing station g, and shaping station h. Between bag opening station c and material unloading station d, there is a bag supporting component e that reciprocates. Below the shaping station h, there is a conveying station i for conveying finished products. A zipper opening station b can be added between bag loading station a and bag opening station c, which is suitable for packaging bags with zippers. Between material unloading station d, a bag mouth cleaning station f can be added to the heat sealing station g to clean the bag mouth and prevent material debris from sticking to the bag mouth and affecting the heat sealing effect. Several bag clamping components j are arranged on the circumference of the turntable 2, corresponding to each station.

[0044] At the bag-loading station a, a bag storage assembly a1 and a column a2 are installed for stacking packaging bags. The column a2 is equipped with a bag-picking device a3 that delivers the packaging bags to the bag-clamping mechanism j. The bag-picking device a3 includes a rotating arm a31 hinged to the column a2, a first swing rod a32 hinged to a first extension beam a21 fixedly installed on the outer circumference of the column a2, and a flipping arm a33 hinged between the rotating arm a31 and the first swing rod a32. The rotating arm a31 is located below the first swing rod a32, and their rotation planes are parallel to each other. The end of the flipping arm a33 away from the first swing rod a32 is connected to a clamping plate assembly a34 for clamping the packaging bags. The opening of the bag storage assembly a1 is located near the clamping plate assembly a34, where a suction cup assembly a4 for adsorbing the packaging bags is provided. The column a2 is equipped with a driving mechanism a5, which is simultaneously connected to the rotating arm a31 and the suction cup assembly a4 and drives the rotating arm a31 and the suction cup assembly a4 to rotate relative to the column a2.

[0045] The suction cup assembly a4 includes a first swing arm a41 hinged to the column a2, a second swing arm a42 connected to the first swing arm a41, a bag-retrieving rod a43, and several suction cups a44 spaced apart on the bag-retrieving rod a43. One end of the bag-retrieving rod a43 is connected to the second swing arm a42, and the other end is suspended. The drive mechanism a5 is connected to the first swing arm a41 and drives the first swing arm a41 to swing relative to the column a2. A connecting shaft a45 passes through the second swing arm a42 and the first swing arm a41. The end of the second swing arm a42 near the first swing arm a41 is provided with a first arc-shaped groove a421. Fasteners connecting the first swing arm a41 and the second swing arm a42 pass through the first arc-shaped groove a421.

[0046] The bag-retrieving lever a43 includes an upper bag-retrieving lever a431 and a lower bag-retrieving lever a432 arranged in parallel. One end of the upper bag-retrieving lever a431 is fixedly connected to the second swing arm a42, and the other end is connected to a synchronizing block a46. The second swing arm a42 is provided with a second arc-shaped groove a422, and a fastener connecting the second swing arm a42 and the end of the lower bag-retrieving lever a432 passes through the second arc-shaped groove a422. The other end of the lower bag-retrieving lever a432 is connected to the synchronizing block a46.

[0047] The drive mechanism a5 includes a pull rod a51 driven by an external power source and a double-angled swing arm a52 linked to the pull rod a51. A first drive shaft a53 is passed through one corner of the double-angled swing arm a52, and a second swing rod a54 is connected to the other corner. The rotation plane of the double-angled swing arm a52 is parallel to the rotating arm a31. The rotating arm a31 is connected to the first drive shaft a53. A third swing arm a55 is connected to the end of the second swing rod a54 away from the double-angled swing arm a52. A second drive shaft a56 is passed through the third swing arm a55, and the second drive shaft a56 is connected to the first swing arm a41.

[0048] The bag storage assembly a1 includes a liftable bag placement tray a11, two bag baffles a12 erected on the bag placement tray a11, and a rear abutment a13 erected on the bag placement tray a11. The bag baffles a12 are located on both sides of the bag placement tray a11 in the width direction, and the rear abutment a13 is located on the side of the bag placement tray a11 away from the suction cup assembly a4 in the length direction. A bag compartment for placing packaging bags is formed between the rear abutment a13 and the bag baffles a12. The lower end face of the bag placement tray a11 is provided with a screw assembly a14 for adjusting the distance between the two bag baffles a12. The screw assembly a14 includes a screw a141 arranged along the width direction of the bag placement tray a11 and at least one guide rod a142 arranged parallel to the screw a141. Fixing blocks are sleeved at both ends of the screw a141 and the guide rod a142. A143 is fixedly connected to a144, and a144 is fixedly connected to a11. A144 is fixedly connected to a12. A11 has two symmetrical adjustment windows a111. A144 is placed inside an adjustment window a111. A141 has symmetrical positive and negative threads. A144 has an internal thread that is threaded to the screw a141. A145 is provided at one end of the screw a141. A145 is provided at the rear abutment plate a13. A131 is attached to a guide plate a131 and a vertically arranged U-shaped plate a132. A long groove a1311 is provided on the guide plate a131. A fastener connecting the guide plate a131 and the bag support plate a11 passes through the long groove a1311.

[0049] Two guide sleeves a15 are spaced apart on the frame 1. A guide post a16 is inserted inside the guide sleeve a15 and its end is connected to the bag placement plate a11. The frame 1 is also equipped with a lifting motor a17. The lifting motor a17 is linked to a screw a18 whose end is connected to the bag placement plate a11. The screw a18 is covered with a telescopic tube a19.

[0050] A bag-supporting device k is provided outside the turntable 2. The bag-supporting device k includes a pallet frame k1 mounted outside the turntable 2. Several pallet assemblies k2 are evenly distributed on the pallet frame k1, corresponding to each workstation. The pallet assembly k2 includes at least one first guide rod k21 erected on the pallet frame k1, a mounting plate k22 slidably connected to the first guide rod k21, and a load-bearing pallet k23 connected to the mounting plate k22. The load-bearing pallet k23 includes a plate body k231 and a base body k232 fixedly connected to the lower end face of the plate body k231. The base body k232 includes components fixedly connected to the plate body k231. A horizontal plane k2321 and a vertical plane k2322 perpendicular to the horizontal plane k2321 are provided at both ends of the horizontal plane k2321 along its length. The triangular plane k2323 is connected to both the horizontal plane k2321 and the vertical plane k2322. One end of the mounting plate k22 extends into the seat body k232 and is in contact with the vertical plane k2322 of the seat body k232. At least one waist-shaped groove k23221 is provided on the vertical plane k2322 of the seat body k232. The mounting plate k22 is provided with a connecting hole k221 that is adapted to the waist-shaped groove k23221.

[0051] The pallet frame k1 includes several spaced support arms k11, vertically arranged support rods k12, and a mounting ring k13 surrounding the turntable 2. One end of the support arm k11 extends into the turntable 2 and connects thereto, and the other end connects to the upper end of the support rod k12. The mounting ring k13 includes several mounting guide plates k131 connected end to end. The lower end of the support rod k12 is connected to the mounting guide plate k131. The first guide rod k21 is mounted on the mounting guide plate k131.

[0052] The pallet frame k1 is equipped with a guide rail device k3 that changes the height of the pallet during operation. The lower end face of the mounting plate k22 is equipped with a roller k24 that is tactilely connected to the guide rail device k3. The guide rail device k3 includes a guide component k31 that guides the load-bearing pallet k23 to rise and a guide rail component k32 that allows the load-bearing pallet k23 to slide. The guide component k31 includes a guide rail k311 that is concentric with the turntable 2 and a guide power component k312 that drives the guide rail k311 to rise and fall. The guide rail k311 includes a first arc-shaped guide rail k3111 that is set in the horizontal direction and a second arc-shaped guide rail k3112 that is set in the downward inclination at the entry end of the first arc-shaped guide rail k3111.

[0053] The guide rail device k3 includes multiple guide rail assemblies k32 spaced apart, and a vibration assembly k33 is provided between each pair of guide rail assemblies k32. The vibration assembly k33 includes a third arc-shaped guide rail k331 concentric with the turntable 2 and a guide power assembly k312 that drives the third arc-shaped guide rail k331 to rise and fall.

[0054] The guiding power assembly k312 includes a guide cylinder k3121 and a fourth swing arm k3122 hinged to the output end of the guide cylinder k3121. The fourth swing arm k3122 is provided with a connecting rod k3123 and a second guide rod k3124 at intervals. The second guide rod k3124 is fitted with a second guide sleeve k3125 embedded in the frame 1. The connecting rod k3123 and the second guide sleeve k3125 are provided with a fifth swing arm k3126. The fifth swing arm k3126 is located above the fourth swing arm k3122 and the two are parallel. The second guide rod k3124 and the guide rail k311 are an integral structure.

[0055] Packaging bags are stacked in the bag compartment. After the suction cup picks up one side of the upper part of the packaging bag, the bag picking rod swings with the first swing arm to lift the upper part of the packaging bag. At the same time, the flip arm flips to bring the clamping plate assembly closer to the suction cup. The clamping plates in the clamping plate assembly clamp the opening of the packaging bag. The clamping plate assembly flips with the flip arm to the side away from the suction cup, sending the packaging bag into the bag clamping assembly. At the same time, the bag picking rod swings with the first swing arm to move closer to the packaging bag to pick up the next packaging bag.

[0056] The packaging bag is clamped on both sides by a bag clamping assembly. It rotates sequentially with the turntable through the following stations: zipper opening station (b), bag opening station (c), unloading station (d), bag mouth cleaning station (f), heat sealing station (g), and shaping station (h). At the zipper opening station, the zipper of the packaging bag is opened (if there is a zipper). At the bag opening station, the bag mouth is opened and held in place by a bag support assembly. After the bag mouth is held in place, it is sent to the unloading station along with the packaging bag. After the material is filled, the packaging bag is sent to the bag mouth cleaning station to clean the bag mouth and prevent material from sticking to the bag mouth and affecting the sealing quality. The packaging bag is sent to the heat sealing station to heat seal the bag mouth. Finally, it is sent to the shaping station, where the bag mouth is pressed at a low temperature and shaped to make the sealed area flat. After shaping, it falls to the conveyor station and is sent outside.

[0057] The tray assemblies at the bag loading station, zipper opening station, heat sealing station, and shaping station are located at the lowest point, with the rollers abutting against the mounting rings. The height of the load-bearing tray can be adjusted according to the actual packaging bag size; simply adjust the position of the connecting hole within the waist-shaped groove. The guide component in the guide rail device is located at the bag opening station. The rollers roll upwards along the second arc-shaped guide rail to the first arc-shaped guide rail, raising the tray assembly. The guide power component can drive the guide rail to rise according to the actual capacity of the packaging bag. The guide rail assembly is located at the material dropping station to ensure that the load-bearing tray supports the effective bottom of the packaging bag (i.e., the bottom containing the material), ensuring that the bag opening and bag body do not deform during the filling process. The vibration component is located between the two guide rail assemblies, shaking the packaging bag after filling to make the material filling more uniform.

Claims

1. A bag-type packaging machine, comprising a turntable, with a bag-loading station, a zipper-opening station, a bag-opening station, a material-discharging station, a bag-mouth cleaning station, a heat-sealing station, and a shaping station arranged sequentially along the outer circumference of the turntable; a bag-supporting component that reciprocates is provided between the bag-opening station and the material-discharging station; and a conveying station for conveying finished products is provided below the shaping station, characterized in that: The bag-loading station is equipped with a bag storage assembly and a column for stacking packaging bags. The column is equipped with a bag-retrieving device for delivering packaging bags to the next process. The bag-retrieving device includes a rotating arm hinged to the column, a first swing rod hinged to a first extension beam fixedly installed on the outer circumference of the column, and a flipping arm hinged between the rotating arm and the first swing rod. The rotating arm is located below the first swing rod, and their rotation planes are parallel to each other. A clamping plate assembly for holding packaging bags is connected to one end of the flipping arm away from the first swing rod. A suction cup assembly for adsorbing packaging bags is provided at the opening of the bag storage assembly near the clamping plate assembly. A driving mechanism is provided inside the column. The driving mechanism is simultaneously connected to the rotating arm and the suction cup assembly and drives the rotating arm and the suction cup assembly to rotate relative to the column.

2. The bag-type packaging machine according to claim 1, characterized in that: The suction cup assembly includes a first swing arm hinged to the column, a second swing arm connected to the first swing arm, a bag-retrieving rod, and several suction cups spaced apart on the bag-retrieving rod. One end of the bag-retrieving rod is connected to the second swing arm, and the other end is suspended in the air. The driving mechanism is connected to the first swing arm and drives the first swing arm to swing relative to the column.

3. The bag-type packaging machine according to claim 2, characterized in that: The drive mechanism includes a pull rod driven by an external power source and a double-angled swing arm linked to the pull rod. A first drive shaft passes through one corner of the double-angled swing arm, and a second swing rod is connected to the other corner. The rotation plane of the double-angled swing arm is parallel to the rotating arm. The rotating arm is connected to the first drive shaft. A third swing arm is connected to the end of the second swing rod away from the double-angled swing arm. A second drive shaft passes through the third swing arm, and the second drive shaft is connected to the first swing arm.

4. The bag-type packaging machine according to claim 2, characterized in that: A connecting shaft is provided between the second swing arm and the first swing arm. The end of the second swing arm near the first swing arm is provided with a first arc-shaped groove, and a fastener connecting the first swing arm and the second swing arm is provided in the arc-shaped groove.

5. A bag-type packaging machine according to claim 2, characterized in that: The bag storage assembly includes a liftable bag placement tray, two bag baffles erected on the bag placement tray, and a rear abutment erected on the bag placement tray. The bag baffles are located on both sides of the bag placement tray in the width direction, and the rear abutment is located on the side of the bag placement tray away from the suction cup assembly in the length direction. A bag compartment for placing packaging bags is formed between the rear abutment and the bag baffles. The lower end face of the bag placement tray is provided with a screw assembly for adjusting the distance between the two bag baffles. The screw assembly includes a screw arranged along the width direction of the bag placement tray and at least one guide rod arranged parallel to the screw. Fixed blocks and sliding blocks are sleeved at both ends of the screw and the guide rod. The fixed blocks are fixedly connected to the bag placement tray, and the sliding blocks are fixedly connected to the bag baffles. Two symmetrical adjustment windows are opened on the bag placement tray, and the sliding blocks are placed in the adjustment windows. The screw is provided with symmetrical positive and negative threads, and the sliding blocks are provided with internal threads that are threadedly connected to the screw. An adjustment handwheel is provided at one end of the screw.

6. A bag-type packaging machine according to any one of claims 1-5, characterized in that: The turntable is equipped with a bag-holding device, which includes a tray frame mounted outside the turntable. The tray frame is evenly distributed with several tray assemblies corresponding to each workstation. Each tray assembly includes at least one first guide rod erected on the tray frame, a mounting plate slidably connected to the first guide rod, and a load-bearing tray connected to the mounting plate. The load-bearing tray includes a tray body and a base body fixedly connected to the lower end face of the tray body. One end of the mounting plate extends into the base body and is attached to the vertical surface of the base body. At least one waist-shaped groove is provided on the vertical surface of the base body, and the mounting plate is provided with a connection hole adapted to the waist-shaped groove.

7. A bag-type packaging machine according to claim 6, characterized in that: The pallet frame includes several spaced-apart support arms, vertically arranged support rods, and a mounting ring surrounding the turntable. One end of each support arm extends into the turntable and connects thereto, while the other end connects to the upper end of the support rod. The mounting ring includes several end-to-end mounting guide plates. The lower end of each support rod is connected to the mounting guide plate, and the first guide rod is mounted on the mounting guide plate.

8. A bag-type packaging machine according to claim 6, characterized in that: The pallet frame is equipped with a guide rail device that changes the height of the pallet during operation. The lower end face of the mounting plate is provided with rollers that are tactilely connected to the guide rail device. The guide rail device includes a guide component that guides the load-bearing pallet to rise and a guide rail component that allows the load-bearing pallet to slide. The guide component includes a guide rail concentric with the turntable and a guide power component that drives the guide rail to rise and fall. The guide rail includes a first arc-shaped guide rail arranged in the horizontal direction and a second arc-shaped guide rail that is inclined downward at the entry end of the first arc-shaped guide rail.

9. A bag-type packaging machine according to claim 8, characterized in that: The guide rail device includes multiple guide rail assemblies spaced apart, and a vibration assembly is provided between each pair of guide rail assemblies. The vibration assembly includes a third arc-shaped guide rail concentric with the turntable and a guide power assembly that drives the third arc-shaped guide rail to rise and fall.

10. A bag-type packaging machine according to claim 8 or 9, characterized in that: The guiding power assembly includes a guide cylinder and a fourth swing arm hinged to the output end of the guide cylinder. The fourth swing arm is provided with a connecting rod and a second guide rod at intervals. The second guide rod is covered with a guide sleeve embedded in the frame. The connecting rod and the guide sleeve are provided with a fifth swing arm. The fifth swing arm is located above the fourth swing arm and the two are parallel. The second guide rod and the guide rail are an integral structure.

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