Bag feeding device of bag feeding type packaging machine

Abstract

The utility model relates to the technical field of packaging machines, in particular to a bag feeding device of a bag feeding type packaging machine, which comprises a bag storage component for stacking packaging bags and a stand column, and a bag taking device for conveying the packaging bags to the next 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 to a bag feeding device for a bag-type packaging machine. Background Technology

[0002] Pre-packaging bags are mainly used for packaging materials such as food, pharmaceuticals, and daily chemicals. Patent application No. 202411814281.4 discloses a fully automatic rotary pre-packaging bag machine suitable for PE packaging bags. It includes 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 in sequence 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.

[0003] 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. To save costs, single-layer PE bags are used. Single-layer PE bags are thin, have no sealing on both sides, and are relatively soft. When picking up the bags, the bag opening is easy to open. When the unsealed PE bags 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 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 in turn leads to errors in subsequent processes. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a bag feeding device for a bag packaging machine that addresses the shortcomings of the prior art by realizing the synchronous action of bag picking and bag feeding, simplifying the bag feeding process and improving efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bag feeding device for a bag packaging machine, comprising a frame, a bag storage assembly for stacking packaging bags mounted on the frame, a column erected on the frame, and a bag picking device for feeding packaging bags to the next process mounted on the column. The bag picking 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 clamping 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, and 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.

[0006] 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 device.

[0007] 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.

[0008] 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.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] A further feature of this invention is that the bag-retrieving rod includes an upper bag-retrieving rod and a lower bag-retrieving rod arranged in parallel. One end of the upper bag-retrieving rod is fixedly connected to a second swing arm, and the other end is connected to a synchronizing block. The second swing arm is provided with a second arc-shaped groove, and a fastener connecting the second swing arm and the end of the lower bag-retrieving rod passes through the second arc-shaped groove. The other end of the lower bag-retrieving rod is connected to the synchronizing block.

[0014] The present invention, which has the above-mentioned features, sets the bag-retrieving rod as a double-rod structure to improve the strength of the bag-retrieving rod and avoid deformation under force; by setting an arc groove, the position of the lower bag-retrieving rod can be adjusted, thereby adjusting the tilt angle of the suction cup.

[0015] A further feature of this invention is that the bag storage assembly includes a liftable bag placement plate, on which two bag baffles are erected, located on both sides of the bag placement plate in the width direction. A screw assembly for adjusting the distance between the two bag baffles is provided on the lower end face of the bag placement plate. The screw assembly includes a screw rod arranged along the width direction of the bag placement plate and at least one guide rod arranged parallel to the screw rod. A fixing block and a sliding block are fitted at both ends of the screw rod and the guide rod. The fixing block is fixedly connected to the bag placement plate, and the sliding block is fixedly connected to the bag baffles. Two symmetrical adjustment windows are provided on the bag placement plate, and the sliding block is placed within the adjustment windows. The screw rod has symmetrical positive and negative threads, and the sliding block has an internal thread that is threadedly connected to the screw rod. An adjustment handwheel is provided at one end of the screw rod.

[0016] The present invention, which has the above features, has a double-sided bag baffle plate whose spacing is synchronously adjusted by the forward and reverse threads of the screw, which can clamp packaging bags of different widths, 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.

[0017] A further feature of this invention is that a rear abutment is erected on the bag-holding tray, the rear abutment being located on the side of the bag-holding tray away from the suction cup assembly along its length, and a bag compartment for placing packaging bags is formed between the rear abutment and the bag-blocking plate, the rear abutment including a guide plate that is attached to the bag-holding tray and a vertically arranged U-shaped plate, the guide plate having an elongated groove, and fasteners for connecting the guide plate and the bag-holding tray passing through the elongated groove.

[0018] The present invention, which has the above features, has the following characteristics: the rear stop plate restricts the displacement of the rear end of the packaging bag, ensuring that the position of the packaging bag remains unchanged during operation; the guide plate groove can adjust the position of the rear stop plate, thereby adjusting the size of the bag compartment to accommodate packaging bags of different sizes.

[0019] A further feature of this invention is that: two guide sleeves are spaced apart on the frame, and a guide post with its end connected to the bag placement tray passes through the guide sleeve; the frame is also equipped with a lifting motor, which is linked to a screw with one end connected to the bag placement tray, and the screw is covered with a telescopic tube.

[0020] The present invention, which has the above-mentioned features, achieves the lifting and lowering of the bag tray by setting a lifting motor; the lifting and lowering bag tray gradually rises as the packaging bag is taken out, so that the top layer of packaging bag is always in the optimal adsorption position of the suction cup assembly.

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0023] Figure 2 This is a schematic diagram of the structure after removing the columns in an embodiment of the present invention. Figure 1 .

[0024] Figure 3 This is a schematic diagram of the suction cup assembly and storage bag assembly in an embodiment of the present invention.

[0025] Figure 4 This is a schematic diagram of the lead screw assembly according to an embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram of the structure after removing the columns in an embodiment of the present invention. Figure 2 . Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings:

[0028] like Figure 1-5The illustrated bag-feeding device for a bag-feeding packaging machine includes a frame 1. A bag storage assembly a1 for stacking packaging bags and a column a2 are mounted on the frame 1. A bag-feeding device a3 for feeding packaging bags to the next process is mounted on the column a2. The bag-feeding 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 periphery 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... Located below the first swing arm a32, the rotation planes of the two are parallel to each other. The end of the flipping arm a33 away from the first swing arm a32 is connected to a clamping plate assembly a34 for holding the packaging bag. The opening of the storage bag assembly a1 is provided with a suction cup assembly a4 for adsorbing the packaging bag near the clamping plate assembly a34. The column a2 is provided with a drive mechanism a5. The drive mechanism a5 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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 to the next process. 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.

Claims

1. A bag-loading device for a bag-type packaging machine, comprising a frame, wherein a bag storage assembly for stacking packaging bags is mounted on the frame, characterized in that: A column is erected on the frame, and a bag-retrieving device is provided on the column to deliver the packaging bag 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 the rotation planes of the two are parallel to each other. A clamping plate assembly for holding the packaging bag is connected to one end of the flipping arm away from the first swing rod. A suction cup assembly for adsorbing the packaging bag 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 feeding device for a 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 feeding device for a 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 feeding device for a 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 first arc-shaped groove.

5. The bag feeding device for a bag-type packaging machine according to claim 2, characterized in that: The bag-retrieving rod includes an upper bag-retrieving rod and a lower bag-retrieving rod arranged in parallel. One end of the upper bag-retrieving rod is fixedly connected to a second swing arm, and the other end is connected to a synchronizing block. The second swing arm is provided with a second arc-shaped groove, and a fastener connecting the second swing arm and the end of the lower bag-retrieving rod passes through the second arc-shaped groove. The other end of the lower bag-retrieving rod is connected to the synchronizing block.

6. A bag-feeding device for a bag-feeding packaging machine according to any one of claims 1-5, characterized in that: The bag storage assembly includes a liftable bag placement plate with two bag baffles erected on it. The bag baffles are located on both sides of the bag placement plate in the width direction. The lower end face of the bag placement plate is provided with a screw assembly for adjusting the distance between the two bag baffles. The screw assembly includes a screw rod arranged along the width direction of the bag placement plate 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 placement plate, and the sliding block is fixedly connected to the bag baffle. The bag placement plate has two symmetrical adjustment windows, and the sliding block is placed in the adjustment windows. The screw rod has symmetrical positive and negative threads, and the sliding block has an internal thread that is threadedly connected to the screw rod. One end of the screw rod is provided with an adjustment handwheel.

7. The bag feeding device for a bag-type packaging machine according to claim 6, characterized in that: A rear abutment is erected on the bag-laying tray. The rear abutment is located on the side of the bag-laying tray away from the suction cup assembly along its length. A bag compartment for placing packaging bags is formed between the rear abutment and the bag-blocking plate. The rear abutment includes a guide plate that is attached to the bag-laying tray and a vertically arranged U-shaped plate. The guide plate has a long groove, and fasteners that connect the guide plate and the bag-laying tray are inserted into the long groove.

8. The bag feeding device for a bag-type packaging machine according to claim 6, characterized in that: The frame is provided with two guide sleeves at intervals. A guide post with its end connected to the bag placement plate passes through the guide sleeve. The frame is also provided with a lifting motor. The lifting motor is linked to a screw with one end connected to the bag placement plate. The screw is covered with a telescopic tube.

Images