Improved automatic bag opening machine

Abstract

The utility model discloses an improved automatic bag opening machine which comprises a machine table, a bag containing mechanism is arranged at one end of the machine table, a bag opening mechanism is arranged at the other end of the machine table, a fixed suction cup is arranged below the bag opening mechanism, and a bag taking and conveying mechanism is arranged below the bag containing mechanism. The bag taking and conveying mechanism comprises an overturning mechanism, a material taking mechanism arranged on the overturning mechanism and a transverse moving mechanism arranged on the machine table, and the material taking mechanism is located under the bag containing mechanism. The improved automatic bag opening machine is compact in structure, due to the fact that the fixed suction cup on one side of the machine table is of a fixed structure, the occupied space is small, bag taking and bag opening are achieved through the bag taking and conveying mechanism on the other side, packaging bags can be conveyed to the fixed base plate through the transverse moving mechanism to be opened after materials are taken by the overturning mechanism, and the packaging bags are convenient to use. Compared with the prior art, the structure of a bag opening station is omitted, stability is higher, and synchronism and coordination are better.

Description

Technical Field

[0001] This utility model belongs to the field of food packaging bag technology, and specifically relates to an improved automatic bag opening machine. Background Technology

[0002] Many foods in daily life need to be packaged in bags to keep them fresh. Traditionally, some food factories use manual methods, opening the bags and putting the products inside. Due to the manual method, the speed is limited and the efficiency is unstable. Now, a large number of large-scale automatic packaging and bag-opening machines have been developed on the market. However, most of these machines have problems such as being too large and complex in structure, having high manufacturing costs, occupying a large area, and having insufficient production efficiency, stability, and reliability. These issues have hindered the promotion, popularization, and application of automatic packaging equipment to some extent.

[0003] In view of this, the applicant conducted in-depth research on the above-mentioned issues, which led to the occurrence of this case. Summary of the Invention

[0004] The purpose of this invention is to provide an improved automatic bag opening machine with a compact structure and small footprint.

[0005] To achieve the above objectives, this utility model adopts the following technical solution:

[0006] An improved automatic bag opening machine includes a machine base. One end of the machine base along its length is provided with a bag placement mechanism for placing packaging bags, and the other end is provided with a bag opening mechanism for opening the packaging bags. A fixed suction cup is provided below the bag opening mechanism. Below the bag placement mechanism is a bag picking and conveying mechanism for picking up and conveying packaging bags from the bag placement mechanism to the fixed suction cup. The bag picking and conveying mechanism includes a flipping mechanism, a material picking mechanism disposed on the flipping mechanism, and a traversing mechanism disposed on the machine base. The traversing mechanism is arranged along the length of the machine base. The material picking mechanism is located directly below the bag placement mechanism. The material picking mechanism includes a material picking suction cup. When the material picking mechanism is located at the fixed suction cup, the positions of the material picking suction cup and the fixed suction cup are corresponding.

[0007] Furthermore, the flipping mechanism includes a vertically arranged vertical plate, a mounting base that can move up and down on the vertical plate, a longitudinal drive mechanism for driving the mounting base to move, and a rotating rod rotatably connected to the mounting base. The rotating rod is arranged horizontally along the width direction of the machine platform, and the material handling mechanism is fixed on the rotating rod.

[0008] Furthermore, the vertical plate is provided with a longitudinal sliding rail and a longitudinal sliding block on the side facing the material picking mechanism. The mounting base is fixed on the longitudinal sliding block. The middle part of the vertical plate is provided with a guide groove. The end of the rotating rod away from the material picking mechanism passes through the mounting base and is connected to a crank arm. One end of the crank arm is fixedly connected to the rotating rod. The other end of the crank arm is fixedly provided with a connecting shaft. The connecting shaft is arranged parallel to the rotating rod. The end of the connecting shaft away from the crank arm extends into the guide groove and is rotatably connected in the guide groove.

[0009] Furthermore, the longitudinal movement drive mechanism includes a longitudinal movement drive cylinder fixedly mounted on the vertical plate. The longitudinal movement drive cylinder is vertically arranged on the vertical plate, and the output end of the longitudinal movement drive cylinder is fixedly connected to the mounting base.

[0010] Furthermore, a bearing seat is fitted onto the rotating rod near the vertical plate, and the rotating rod is rotatably mounted inside the bearing seat. The upper and lower ends of the vertical plate are respectively provided with travel stops for blocking the mounting seat.

[0011] Furthermore, the material handling mechanism includes a material handling suction cup mounting plate fixed on the rotating rod. One end of the material handling suction cup mounting plate is fixed on the rotating rod, and the other end of the material handling suction cup mounting plate is fixed with a material handling suction cup mounting frame for mounting the material handling suction cup. The material handling suction cup is fixed on the material handling suction cup mounting frame.

[0012] Furthermore, the machine platform is provided with a vertically arranged base plate, and the transverse movement mechanism includes a transverse slide rail and a transverse slide block arranged horizontally on the base plate, as well as a transverse movement drive mechanism for driving the transverse slide block to slide on the transverse slide rail. The transverse slide rail is fixed on the base plate, and the arrangement direction of the transverse slide rail is the length direction of the machine platform.

[0013] Furthermore, the transverse drive mechanism includes a rotary motor, a connecting seat fixed to the output end of the rotary motor, and a connecting rod fixed to the other end of the connecting seat. One end of the connecting rod is hinged to the bottom of the connecting seat, and the other end is hinged to the vertical plate.

[0014] Furthermore, the bag opening mechanism includes a support plate hopper disposed within the machine base and an opening and closing cylinder for controlling the opening and closing of the support plate hopper, and also includes a support plate drive mechanism disposed on one side of the machine base for driving the support plate hopper to move along the vertical direction of the machine base.

[0015] Furthermore, the machine base is also provided with an auxiliary material conveying mechanism, which includes an auxiliary material box fixed on the machine base and an auxiliary material conveying frame fixed on the output end of the auxiliary material box. The auxiliary material conveying frame is provided with an auxiliary material channel for the auxiliary material to pass through. One end of the auxiliary material channel is correspondingly located at the outlet end of the auxiliary material box, and the other end is located at the top of the support plate hopper.

[0016] By adopting the aforementioned design scheme, the beneficial effects of this utility model are:

[0017] This improved automatic bag opening machine has a compact structure. Since the fixed suction cup on one side of the machine is a fixed structure, it occupies little space. Bag picking and opening are both achieved by the bag picking and conveying mechanism on the other side. After the flipping mechanism picks up the material, the packaging bag can be sent to the fixed base plate by the transverse mechanism for bag opening. Compared with the existing technology, it saves the structure of the bag opening station, has higher stability, and better synchronization and coordination.

[0018] Furthermore, the flipping mechanism of this utility model achieves the flipping function in the vertical direction through the longitudinal displacement drive cylinder in conjunction with the mechanical structure, and the structural design is more reasonable and has higher reliability.

[0019] Furthermore, the upper and lower ends of the vertical plate are respectively equipped with travel stops corresponding to the mounting base, which can buffer the mounting base and improve safety performance.

[0020] Furthermore, the bag opening action is achieved by the rotation stroke of the rotary motor. When it is necessary to change the bag model, only the stroke of the rotary motor needs to be changed, which saves costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the automatic bag opening machine of this utility model.

[0022] Figure 2 This is a schematic diagram of the bag-picking and conveying mechanism in the automatic bag-opening machine of this utility model.

[0023] Figure 3 This is a cross-sectional structural diagram of the flipping mechanism and the material handling mechanism in the automatic bag opening machine of this utility model.

[0024] Figure 4 This is a schematic diagram of the bag opening mechanism of the automatic bag opening machine of this utility model.

[0025] In the picture:

[0026] 1-Machine; 10-Packaging bags;

[0027] 11-Fixed suction cup; 12-Fixed suction cup mounting bracket;

[0028] 13-Support plate; 14-Base plate;

[0029] 2-Bag placement mechanism; 3-Bag collection and conveying mechanism;

[0030] 31-Tilting mechanism; 32-Material handling mechanism;

[0031] 33 - Lateral movement mechanism; 311 - Vertical plate;

[0032] 312 - Mounting base; 313 - Longitudinal movement drive mechanism;

[0033] 314 - Rotating rod; 315 - Longitudinal slide rail;

[0034] 316 - Longitudinal slide block; 317 - Guide groove;

[0035] 318 - Crank arm; 319 - Connecting shaft;

[0036] 321 - Material suction cup;

[0037] 322 - Material suction cup mounting plate; 323 - Material suction cup mounting bracket;

[0038] 331 - Horizontal plate; 332 - Horizontal slide rail;

[0039] 333 - Transverse slide; 334 - Rotary motor;

[0040] 335 - Connecting seat; 336 - Connecting rod;

[0041] 3111 - Upper stroke stop; 3112 - Lower stroke stop;

[0042] 3141 - Bearing housing; 3171 - Vertical guide section;

[0043] 3172 - Arc-shaped guide section;

[0044] 4-Bag opening mechanism; 41-Support plate hopper;

[0045] 42-Opening and closing cylinder; 43-Support plate slide rail

[0046] 44-Bearing plate; 45-Supporting cylinder;

[0047] 46 - Fixing plate; 401 - Connecting block;

[0048] 402 - Crossbar; 403 - Quick installation;

[0049] 404 - Swing block; 405 - Linkage rod;

[0050] 51-Auxiliary material box; 52-Auxiliary material conveyor frame. Detailed Implementation

[0051] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0052] like Figures 1 to 4 As shown, an improved automatic bag opening machine includes a machine base 1, which is set on the ground. One end of the machine base 1 along its length is provided with a bag placement mechanism 2 for placing packaging bags 10, and the other end is provided with a bag opening mechanism 4 for opening the packaging bags 10. It should be noted that the bag placement mechanism 2 of this utility model is a conventional structure for placing packaging bags 10 in the field. For example, it adopts the structure of the bag placement mechanism disclosed in Chinese utility model patent with publication number "CN221642834U" and name "Small Drop-Type Bag Filling Machine". The bag placement mechanism 2 mentioned in this embodiment adopts the same structure mentioned in the above patent. The specific structure of the bag placement mechanism 2 has been described in detail in the above patent, and will not be described in detail here.

[0053] Below the bag opening mechanism 4, a fixed suction cup 11 is provided. Specifically, the machine base 1 is provided with a fixed suction cup mounting bracket 12 for mounting the fixed suction cup 11. The fixed suction cup mounting bracket 12 is fixed to the machine base 1 by a horizontally placed support plate 13. The fixed suction cup mounting bracket 12 is arranged vertically, and the fixed suction cup 11 is arranged horizontally. Below the bag placement mechanism 2, there is a bag picking and conveying mechanism 3 for picking up and conveying the packaging bags 10 on the bag placement mechanism 2 to the fixed suction cup 11. Correspondingly, the bottom of the bag placement mechanism 2 has a bag picking and conveying mechanism. The conveying mechanism 3 opens the bag-taking mechanism. The bag-taking conveying mechanism 3 includes a flipping mechanism 31, a material-taking mechanism 32 set on the flipping mechanism 31, and a transverse mechanism 33 set on the machine base 1. The transverse mechanism 33 is arranged in the length direction of the machine base 1. The material-taking mechanism 32 is located directly below the bag placement mechanism 2. The material-taking mechanism 32 includes a material-taking suction cup 321. The fixed suction cup 11 is set in the direction of the material-taking mechanism 32. When the material-taking mechanism 32 is located at the fixed suction cup 11, the positions of the material-taking suction cup 321 and the fixed suction cup 11 are corresponding.

[0054] The flipping mechanism 31 of this utility model includes a vertically arranged vertical plate 311, a mounting base 312 that can move up and down on the vertical plate 311, a longitudinal drive mechanism 313 for driving the mounting base 312 to move, and a rotating rod 314 rotatably connected to the mounting base 312. The rotating rod 314 is arranged horizontally along the width direction of the machine base 1. A bearing seat 3141 is also sleeved on the rotating rod 314 near the vertical plate 311. The rotating rod 314 is rotatably connected to the mounting base 312 through the bearing seat 3141. The material picking mechanism 32 is fixed on the rotating rod 314. A longitudinal slide rail 315 and a longitudinal slide block 316 are provided on the side of the vertical plate 311 facing the material picking mechanism 32. Preferably, the longitudinal slide rail 315... Two sets of longitudinal sliding blocks 316 are provided, located on both sides of the width direction of the vertical plate 311. The longitudinal sliding rail 315 is arranged vertically. The mounting base 312 is fixed on the two longitudinal sliding blocks 316. A guide groove 317 is provided in the middle of the vertical plate 311. The end of the rotating rod 314 away from the material picking mechanism 32 passes through the mounting base 312 and is connected to a crank arm 318. One end of the crank arm 318 is fixedly connected to the rotating rod 314, and the other end of the crank arm 318 is fixedly provided with a connecting shaft 319. The connecting shaft 319 is arranged parallel to the rotating rod 314. The end of the connecting shaft 319 away from the crank arm 318 extends into the guide groove 317 and is rotatably connected to the guide groove 317 through a bearing. Specifically, the shape of the guide groove 317 is as follows: Figure 2 and Figure 3 As shown, the guide groove 317 is arranged vertically. The guide groove 317 includes two vertically staggered guide sections 3171 and an arc-shaped guide section 3172 connecting the two vertically staggered guide sections 3171. The longitudinal movement drive mechanism 313 is a longitudinal movement drive cylinder fixed on the vertical plate 311. Specifically, the longitudinal movement drive cylinder is arranged vertically, and the output end of the longitudinal movement drive cylinder is set towards the mounting base 312 and fixed on the mounting base 312.

[0055] The material handling mechanism 32 also includes a material handling suction cup mounting plate 322 fixed on the rotating rod 314. One end of the material handling suction cup mounting plate 322 is fixed on the rotating rod 314, and the other end is fixed with a material handling suction cup mounting frame 323 for mounting the material handling suction cup 321. The material handling suction cup 321 is fixed on the material handling suction cup mounting frame 323. It should be noted that the material handling suction cup 321 and the fixed suction cup 11 are both conventional vacuum suction cups in the art. The number of material handling suction cup 321 and fixed suction cup 11 is at least two. Preferably, in this utility model, the number of fixed suction cups 11 is four, and they are respectively arranged at the four corners of the fixed suction cup mounting frame 12. Correspondingly, there are four material handling suction cups 321, and they are respectively arranged at the four corners of the material handling suction cup mounting frame 323.

[0056] The machine base 1 is provided with a vertically arranged base plate 14. The transverse movement mechanism 33 includes a transverse slide rail 332 and a transverse slide block 333 fixed on the base plate 14, and a transverse movement drive mechanism for driving the transverse slide block 333 to slide on the transverse slide rail 332. Specifically, there are two sets of transverse slide rails 332, both of which are fixed on the base plate 14. The transverse slide rails 332 are arranged in the length direction of the machine base 1, and the two sets of transverse slide rails 332 are spaced apart along the width direction of the machine base 1. The transverse movement drive mechanism includes a horizontal... The arrangement includes a rotary motor 334, a connecting seat 335 fixed to the output end of the rotary motor 334, and a connecting rod 336 fixed to the outside of the connecting seat 335. The base plate 14 is provided with a rotary motor mounting seat (not shown in the figure) for mounting the rotary motor 334. The output end of the rotary motor 334 is set outward. The connecting rod 336 is fixedly connected to the vertical plate 311 through a horizontal plate 331. One end of the connecting rod 336 is hinged to the outside of the connecting seat 335, and the other end is hinged to the top of the horizontal plate 331.

[0057] The working principle of the flipping mechanism 31 and the transverse movement mechanism 33 of this utility model:

[0058] When the longitudinal drive cylinder moves up and down, the output end of the longitudinal drive cylinder will drive the mounting base 312 and the rotating rod 314 on the mounting base 312 to move up and down, thereby driving the crank arm 318 and the connecting shaft 319 to move up and down. Since the connecting shaft 319 is rotatably set in the guide groove 317 through the bearing, the longitudinal drive cylinder will drive the connecting shaft 319 from one of the vertical guide sections 3171 through the arc guide section 3172 and then to the other vertical guide section 3171. Due to the staggered structure of the two vertical guide sections 3171, when the connecting shaft 319 moves in the guide groove 317, it will cause the connecting end of the crank arm 318 and the rotating rod 314 to swing up and down by a certain arc. That is, when the connecting shaft 319 moves in the guide groove 317, it will cause the material picking mechanism 32 fixed on the rotating rod 314 to swing up and down by a certain arc, realizing the bag picking and bag feeding actions.

[0059] Specifically, when the output end of the longitudinal drive cylinder moves upward, causing the connecting shaft 319 to be located at the highest point of the guide groove 317, the material picking suction cup mounting bracket 323 is in a horizontal state, the material picking suction cup 321 is facing upward and aligned with the packaging bag 10 in the bag placement mechanism 2, and the material picking mechanism 32 is in the material picking position. At this time, the vacuum adsorption effect of the material picking suction cup 321 is used to pick up the packaging bag 10 in the bag placement mechanism 2.

[0060] After the packaging bag 10 is picked up by the bag placement mechanism 2, the output end of the longitudinal drive cylinder moves downward, causing the connecting shaft 319 to move downward in the guide groove 317. At this time, the connecting shaft 319 drives the crank arm 318 and the rotating rod 314 to rotate. The rotating rod 314 drives the material-picking suction cup mounting frame 323 to swing downward in a certain arc towards the fixed suction cup 11. When the connecting shaft 319 is at the lowest point of the guide groove 317, the material-picking suction cup mounting frame 323 is in a vertical state (that is, when the connecting shaft 319 moves from the highest point to the lowest point along the guide groove 317, the material-picking suction cup mounting frame 323 flips 9 times). (0°), the material-picking suction cup 321 is in a horizontal state and faces the fixed suction cup 11, and each material-picking suction cup 321 corresponds to each fixed suction cup 11. At this time, the rotary motor 334 is started. The rotary motor 334 rotates and drives the connecting seat 335 to rotate. The end of the connecting seat 335 away from the rotary motor 334 drives the connecting rod 336 to move towards the fixed suction cup 11, so that the connecting rod 336 pushes the transverse sliding block 333 on the base plate 14 to move on the transverse sliding rail 332. When the material-picking suction cup 321 moves close to the fixed suction cup 11, the material-picking mechanism 32 is in the bag opening position.

[0061] Preferably, the upper and lower ends of the vertical plate 311 are respectively provided with an upper travel stop 3111 and a lower travel stop 3112 for blocking the shaft mounting seat 312. When the connecting shaft 319 is at the lowest point of the guide groove 317, the mounting seat 312 is in contact with the lower travel stop 3112. When the connecting shaft 319 is at the highest point of the guide groove 317, the mounting seat 312 is in contact with the upper travel stop 3111. This arrangement can buffer the mounting seat 312 and improve safety performance.

[0062] The improved automatic bag opening machine of this utility model has a compact structure. Since the fixed suction cup 11 on one side of the machine base 1 is a fixed structure and occupies less space, bag picking and opening are both achieved by the bag picking and conveying mechanism 3 on the other side. Compared with the prior art, it saves space at the bag opening station, has higher stability, and better synchronization and coordination.

[0063] like Figure 4 As shown, the bag opening mechanism 4 includes a support plate hopper 41 disposed within the machine base 1 and an opening / closing cylinder 42 for controlling the opening and closing of the support plate hopper 41. It also includes a support plate drive mechanism disposed on one side of the machine base 1 for driving the support plate hopper 41 to move vertically along the machine base 1. Specifically, the support plate drive mechanism includes a support plate slide rail 43 vertically arranged on the machine base 1 and a support plate slide seat (not shown in the figure) movable on the support plate slide rail 43. A bearing plate 44 is provided on the front side of the support plate slide seat, and a support plate cylinder 45 is provided on one side of the bearing plate 44 for driving the bearing plate 44 to move up and down. The support plate cylinder 45 is vertically arranged and fixed within the machine base 11.

[0064] A horizontally arranged fixing plate 46 is provided on the support plate 44. A through groove is provided on the fixing plate 46 for placing the support plate hopper 41. The support plate hopper 41 is disposed in the through groove and is located above the suction position of the fixed suction cup 11. Specifically, the support plate hopper 41 includes two support plates whose bottoms can be opened and closed. The support plates in this invention are conventional shovel-shaped support plates. The tops of the two support plates form the inlet of the support plate hopper 41, and a passageway for the support plate hopper 41 is formed between the two support plates. The material channel has two support plates whose bottoms close to form the outlet of the support plate hopper 41. Preferably, the opening and closing cylinder 42 is located on the top of the fixed plate 46, and the output end of the opening and closing cylinder 42 is connected to one of the support plates and synchronously controls the opening and closing of the two support plates. Specifically, in this embodiment, a connecting block 401 is fixedly provided on the outer side of each support plate, and a crossbar 402 is fixedly provided on each connecting block 401. The bottom of the fixed plate 46 is provided with mounting blocks 403 corresponding to both ends of the crossbar 402. The two crossbars 402 are connected to each other. The ends are respectively connected to the mounting blocks 403 at the bottom of the fixed plate 46. The opening and closing cylinder 42 is set in the same direction as the opening and closing direction of the two support plates. The output end of the opening and closing cylinder 42 is connected to a swing block 404. One end of one of the crossbars 402 extends out of the mounting block 403 and is fixedly connected to this swing block 404. Correspondingly, the ends of the two crossbars 402 that are far away from the opening and closing cylinder 42 are also provided with swing blocks 404. The two swing blocks 404 at the ends far away from the opening and closing cylinder 42 are connected by an oblique direction. The connecting rod 405 is arranged so that its two ends are connected to the upper and lower ends of the two swing blocks 404 respectively. The opening and closing cylinder 42 extends and retracts, causing the connecting rod 405 near the opening and closing cylinder 42 to rotate, which drives the swing block 404 to swing, thereby driving the two support plates to open or close towards each other. In this way, when the opening and closing cylinder 42 extends and retracts, it drives the swing block 404 to swing. The swing block 404 drives the crossbar 402 to rotate, thereby driving the support plate to move, thus controlling the opening and closing action of the two support plates.

[0065] The support plate hopper 41 is located above the fixed suction cup 11. When the material-picking suction cup 321 is at the bag-opening station, the fixed suction cup 11 holds the other side of the packaging bag 10. At this time, the rotary motor 334 reverses, causing the material-picking mechanism 32 to move back a short distance, thereby pulling open the packaging bag 10. At this time, the support plate cylinder 45 drives the bearing plate 44 to move down, so that the bottom of the support plate hopper 41 extends into the packaging bag 10. The opening and closing cylinder 42 then controls the two support plates to open and open the packaging bag 10, making it easier to put the material into the packaging bag 10. It should be noted that this utility model... The bag opening mechanism 4 can also adopt a conventional structure in the art that can automatically open the packaging bag 10, such as the bag opening mechanism structure disclosed in the Chinese utility model patent with publication number "CN221642834U" and title "Small material feeding bagging machine"; preferably, the rotary motor 334 can be a conventional servo motor with forward and reverse rotation functions in the art. The bag opening action is achieved by the stroke of the rotary motor 334. When the bag model needs to be changed, only the stroke of the rotary motor 334 needs to be changed, which saves costs.

[0066] Preferably, the machine base 1 is also provided with an auxiliary material conveying mechanism. The auxiliary material conveying mechanism includes an auxiliary material box 51 fixed on the machine base 1 and an auxiliary material conveying frame 52 fixed at the output end of the auxiliary material box 51. The auxiliary material conveying frame 52 is provided with an auxiliary material channel for the auxiliary material to pass through. One end of the auxiliary material channel is correspondingly set at the outlet end of the auxiliary material box 51, and the other end is set at the top of the support plate hopper 41. In this embodiment, the auxiliary material box 51 adopts a conventional automatic feeding structure or a vibrating box structure in the art. As long as it can automatically feed the auxiliary material, it is acceptable. This embodiment will not be described in detail here. The auxiliary material can be a desiccant pack. When in use, the auxiliary material in the auxiliary material box 51 falls into the support plate hopper 41 together with the material through the auxiliary material channel on the auxiliary material conveying frame 52 and falls into the packaging bag 10.

[0067] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An improved automatic bag-opening machine, comprising a machine base, characterized in that, One end of the machine tool along its length is provided with a bag placement mechanism for placing packaging bags, and the other end is provided with a bag opening mechanism for opening packaging bags. A fixed suction cup is provided below the bag opening mechanism, and a bag picking and conveying mechanism is provided below the bag placement mechanism for picking up and conveying packaging bags from the bag placement mechanism to the fixed suction cup. The bag picking and conveying mechanism includes a flipping mechanism, a material picking mechanism disposed on the flipping mechanism, and a transverse moving mechanism disposed on the machine tool. The transverse moving mechanism is arranged along the length of the machine tool. The material picking mechanism is located directly below the bag placement mechanism. The material picking mechanism includes a material picking suction cup. When the material picking mechanism is located at the fixed suction cup, the positions of the material picking suction cup and the fixed suction cup are corresponding.

2. The improved automatic bag-opening machine according to claim 1, characterized in that, The flipping mechanism includes a vertically arranged vertical plate, a mounting base that can move up and down on the vertical plate, a longitudinal drive mechanism for driving the mounting base to move, and a rotating rod rotatably connected to the mounting base. The rotating rod is arranged horizontally along the width direction of the machine platform, and the material handling mechanism is fixed on the rotating rod.

3. An improved automatic bag-opening machine according to claim 2, characterized in that, The vertical plate is provided with a longitudinal sliding rail and a longitudinal sliding block on the side facing the material picking mechanism. The mounting base is fixed on the longitudinal sliding block. The middle part of the vertical plate is provided with a guide groove. The end of the rotating rod away from the material picking mechanism passes through the mounting base and is connected to a crank arm. One end of the crank arm is fixedly connected to the rotating rod. The other end of the crank arm is fixedly provided with a connecting shaft. The connecting shaft is arranged parallel to the rotating rod. The end of the connecting shaft away from the crank arm extends into the guide groove and is rotatably connected in the guide groove.

4. An improved automatic bag-opening machine according to claim 3, characterized in that, The longitudinal movement drive mechanism includes a longitudinal movement drive cylinder fixedly mounted on the vertical plate. The longitudinal movement drive cylinder is vertically arranged on the vertical plate, and the output end of the longitudinal movement drive cylinder is fixedly connected to the mounting base.

5. An improved automatic bag-opening machine according to claim 3, characterized in that, A bearing seat is also fitted on the rotating rod near the vertical plate. The rotating rod is rotatably mounted in the bearing seat. The upper and lower ends of the vertical plate are respectively provided with stroke blocks to block the mounting seat.

6. An improved automatic bag-opening machine according to claim 2, characterized in that, The material handling mechanism includes a material handling suction cup mounting plate fixed on the rotating rod. One end of the material handling suction cup mounting plate is fixed on the rotating rod, and the other end of the material handling suction cup mounting plate is fixed with a material handling suction cup mounting frame for mounting the material handling suction cup. The material handling suction cup is fixed on the material handling suction cup mounting frame.

7. An improved automatic bag-opening machine according to claim 2, characterized in that, The machine platform is provided with a vertically arranged base plate. The transverse movement mechanism includes a transverse slide rail and a transverse slide block arranged horizontally on the base plate, and a transverse movement drive mechanism for driving the transverse slide block to slide on the transverse slide rail. The transverse slide rail is fixed on the base plate, and the arrangement direction of the transverse slide rail is the length direction of the machine platform.

8. An improved automatic bag-opening machine according to claim 7, characterized in that, The lateral drive mechanism includes a rotary motor, a connecting seat fixed to the output end of the rotary motor, and a connecting rod fixed to the other end of the connecting seat. One end of the connecting rod is hinged to the bottom of the connecting seat, and the other end is hinged to the vertical plate.

9. An improved automatic bag-opening machine according to claim 1, characterized in that, The bag opening mechanism includes a support plate hopper disposed within the machine base and an opening and closing cylinder for controlling the opening and closing of the support plate hopper. It also includes a support plate drive mechanism disposed on one side of the machine base for driving the support plate hopper to move along the vertical direction of the machine base.

10. An improved automatic bag-opening machine according to claim 9, characterized in that, The machine base is also provided with an auxiliary material conveying mechanism. The auxiliary material conveying mechanism includes an auxiliary material box fixed on the machine base and an auxiliary material conveying frame fixed on the output end of the auxiliary material box. The auxiliary material conveying frame is provided with an auxiliary material channel for the auxiliary material to pass through. One end of the auxiliary material channel is correspondingly located at the outlet end of the auxiliary material box, and the other end is located at the top of the support plate hopper.

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