An automatic bag gripping and bag opening structure

Abstract

This utility model discloses an automatic bag-grabbing and supporting structure, including a baling machine. A bag-grabbing and supporting assembly is installed at the bag output port of the baling machine. The assembly includes a mounting frame, a bag-grabbing device drive motor, a bag-grabbing device gripping plate, a successful bag-grabbing detection sensor, and a bag-grabbing stroke sensor that detects the working stroke of the gripping plate. The output shaft of the bag-grabbing device drive motor is connected to a rotating shaft, and the gripping plate is connected to the rotating shaft. Driven by the bag-grabbing device drive motor, the gripping plate can move horizontally to a downward vertical direction to limit the bag opening. The bag-grabbing device drive motor is located on the side of the mounting frame, and the rotating shaft is rotatably connected within the mounting frame. The mounting frame is fixed to the baling machine. This structure offers low equipment cost and improved detection accuracy.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging machine equipment, specifically to an automatic bag gripping and bag-supporting structure. Background Technology

[0002] While automated packaging is becoming increasingly widespread, the failure rate in the bag-opening stage is quite high. The main solutions on the market are two-sided gripper solutions, but these are limited by the bag's width, resulting in low accuracy during product delivery. Another option is vacuum suction, which is expensive and highly dependent on a vacuum machine. Because the bag is not perfectly flat, even slight wrinkles can cause unstable suction. Therefore, designing a bag-opening technology that can solve the high failure rate problem in the bag-opening stage of automated packaging, while also being low-cost and simple in structure, is particularly important. Utility Model Content

[0003] The purpose of this utility model is to provide an automatic bag gripping and bag opening structure to solve the problems mentioned in the background art, such as the high failure rate of the bag opening process in existing packaging machines, as well as the complex structure and high cost.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic bag gripping and supporting structure, comprising a baling machine, wherein a bag gripping and supporting assembly is provided on the bag output port of the baling machine, the bag gripping and supporting assembly comprising a mounting frame, a bag gripping device drive motor, a bag gripping device gripping plate, a bag gripping success detection sensor for checking whether bag gripping is successful, and a bag gripping stroke sensor for detecting and checking the working stroke of the bag gripping plate, wherein the output shaft of the bag gripping device drive motor is connected to a rotating shaft, and the bag gripping device gripping plate is connected to the rotating shaft, and the bag gripping device gripping plate can move horizontally to a downward vertical direction to limit the bag opening under the drive of the bag gripping device drive motor, the bag gripping device drive motor is located on the side of the mounting frame, the rotating shaft is rotatably connected in the mounting frame, and the mounting frame is fixed on the baling machine.

[0005] Furthermore, to limit the bag on one side, a limiting mechanism is also provided on the bag output port of the packaging machine. This limiting mechanism includes mounting beams, a rotary drive motor, a second rotary shaft, an auxiliary transmission gear, a second auxiliary transmission gear, a moving frame, a lower crossbeam, a main transmission gear, and a third auxiliary transmission gear. Two mounting beams are fixed to both sides of the bag output port of the packaging machine. Each mounting beam has a guide rail, and a positioning beam is fixed between the two mounting beams. The rotary drive motor is fixed below the positioning beam. The second rotary shaft rotatably passes through the positioning beam. The output shaft of the rotary drive motor is connected to the main transmission gear, and the third auxiliary transmission gear is located at the center of the second rotary shaft. The driving gear and the auxiliary transmission gear three are connected by a transmission chain two. Both ends of the rotating shaft two are connected to an auxiliary transmission gear one. Each mounting beam has an auxiliary transmission gear two connected to its lower end. The auxiliary transmission gear two and the auxiliary transmission gear one on the same side are connected by a transmission chain one. A movable frame is connected to each transmission chain one. A lower crossbeam is provided between the two movable frames. The two ends of the lower crossbeam are slidably connected to the corresponding guide rails by sliders. After the gripping plate of the bag gripping device flips downward, it can cooperate with the lower crossbeam to grip and lock the bag on one side. In this way, the automatic delivery of goods into the bag will not be affected by the opening space or obstruction of the opening.

[0006] Furthermore, to facilitate material unloading, a material unloading channel is provided below the limiting mechanism.

[0007] Furthermore, the positioning beam has a T-shaped structure.

[0008] Furthermore, to avoid damaging the bag, the bag gripping device has a curved bottom surface below the gripping plate.

[0009] Furthermore, for ease of installation, a fixed beam is provided on both sides of the bag output port of the packaging machine. The mounting frame is fixed between the two fixed beams. The bag gripping success detection sensor and the bag gripping stroke sensor are installed on the sensor bracket, and the sensor bracket is fixed on the mounting frame.

[0010] Furthermore, the output shaft of the drive motor of the bag-grabbing device is connected to a coupling, and the other end of the coupling is connected to the rotating shaft.

[0011] Compared with the prior art, the beneficial effects of this utility model are: therefore, this structure can greatly save material costs and labor costs, and solve the problem of high failure rate in the bag opening stage of automatic packaging in a simple and practical way; because it is gripped and opened in the middle of the bag, the bag is opened in a trapezoidal state, which can meet the automatic packaging work of larger goods and greatly reduce the failure rate. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structure of an automatic bag-grabbing and bag-supporting structure in Embodiment 1. Figure 1 ;

[0013] Figure 2 This is a three-dimensional structure of an automatic bag-grabbing and bag-supporting structure in Embodiment 1. Figure 2 ;

[0014] Figure 3 This is a schematic diagram of the automatic bag-grabbing and bag-supporting structure in Embodiment 1 without the bag-grabbing and bag-supporting assembly installed. Figure 1 ;

[0015] Figure 4 This is a schematic diagram of the automatic bag-grabbing and bag-supporting structure in Embodiment 1 without the bag-grabbing and bag-supporting assembly installed. Figure 2 ;

[0016] Figure 5 This is a schematic diagram of the automatic bag-grabbing and supporting structure in Embodiment 1 without the installation of the bag-grabbing device drive motor, bag-grabbing device gripping plate, and rotating shaft. Figure 1 ;

[0017] Figure 6 This is a schematic diagram of the bag gripping and supporting assembly.

[0018] In the diagram: 1. Packaging machine; 2. Bag gripping device drive motor; 3. Bag gripping device gripping plate; 4. Transmission chain 2; 5. Bag gripping success detection sensor; 6. Bag gripping stroke sensor; 7. Rotary shaft 1; 8. Mounting beam; 9. Rotary drive motor; 10. Rotary shaft 2; 11. Auxiliary transmission gear 1; 12. Auxiliary transmission gear 2; 13. Moving frame; 14. Lower crossbeam; 15. Guide rail; 16. Positioning beam; 17. Transmission chain 1; 18. Slider; 19. Feeding channel; 20. Arc-shaped bending part; 401. Fixed beam; 21. Sensor bracket; 22. Coupling; 23. Main transmission gear; 24. Auxiliary transmission gear 3; 25. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] Example 1

[0022] Please see Figures 1-6 As shown, this embodiment discloses an automatic bag gripping and supporting structure, including a baling machine 1. A bag gripping and supporting assembly is provided on the bag output port of the baling machine 1. The bag gripping and supporting assembly includes a mounting frame 2, a bag gripping device drive motor 3 (powering the gripping plate), a bag gripping device gripping plate 4, a bag gripping success detection sensor 6 (checking successful bag gripping), and a bag gripping stroke sensor 7 (detecting the working stroke of the gripping plate). The output shaft of the bag gripping device drive motor 3 is connected to a rotating shaft 8, and the bag gripping device gripping plate 4 is connected to the rotating shaft 8. Driven by the bag gripping device drive motor 3, the bag gripping device gripping plate 4 can move horizontally to a downward vertical direction to limit the bag opening. 3 is located on the side of the mounting frame 2. The rotating shaft 8 is rotatably connected inside the mounting frame 2. The mounting frame 2 is fixed on the entire packaging machine 1. The output shaft of the bag gripping device drive motor 3 is connected to a coupling 23. The other end of the coupling 23 is connected to the rotating shaft 8. Furthermore, to avoid damaging the bag, a bent part 401 with an arc-shaped bottom surface is provided below the gripping plate 4 of the bag gripping device. At the same time, for easy installation, a fixed beam 21 is provided on both sides of the bag output port of the entire packaging machine 1. The mounting frame 2 is fixed between the two fixed beams 21. The bag gripping success detection sensor 6 and the bag gripping stroke sensor 7 are installed on the sensor bracket 22. The sensor bracket 22 is fixed on the mounting frame 2.

[0023] Furthermore, to limit the bag on one side, a limiting mechanism is also provided on the bag output port of the packaging machine 1. This limiting mechanism includes a mounting beam 9, a rotary drive motor 10, a second rotary shaft 11, an auxiliary transmission gear 12, an auxiliary transmission gear 13, a moving frame 14, a lower crossbeam 15, a main transmission gear 24, and an auxiliary transmission gear 25. Two mounting beams 9 are fixed to both sides of the bag output port of the packaging machine 1. Each mounting beam 9 is equipped with a guide rail 16, and a positioning beam 17 is fixed between the two mounting beams 9. The structure is T-shaped. The rotary drive motor 10 is fixed below the positioning beam 17. A rotating shaft 11 rotatably passes through the positioning beam 17. The output shaft of the rotary drive motor 10 is connected to a main drive gear 24. An auxiliary drive gear 25 is located at the center of the rotating shaft 11. The main drive gear 24 and the auxiliary drive gear 25 are connected by a transmission chain 5. An auxiliary drive gear 12 is connected to each end of the rotating shaft 11. An auxiliary drive gear 13 is connected to the bottom of each mounting beam 9. The auxiliary transmission gear 13 and auxiliary transmission gear 12 on the same side are connected by a transmission chain 18. A movable frame 14 is connected to each transmission chain 18, and a lower crossbeam 15 is provided between the two movable frames 14. The two ends of the lower crossbeam 15 are slidably connected to the corresponding guide rails 16 via sliders 19. When the gripping plate 4 of the bag-gripping device flips downwards, it can cooperate with the lower crossbeam 15 to grip and lock one side of the bag. This ensures that the automatic delivery of goods into the bag is not affected by the opening space or obstruction. For convenience... For feeding, a feeding channel 20 is provided below the limiting mechanism. The working principle is as follows: the drive motor 10 drives the main transmission gear 24 to rotate, which in turn drives the auxiliary transmission gear 25 to rotate under the action of the transmission chain 2 5, and simultaneously drives the rotating shaft 2 11 to rotate. At this time, the auxiliary transmission gears 12 on both sides of the rotating shaft 2 11 rotate, and then drive the auxiliary transmission gear 2 13 to rotate under the action of the transmission chain 18, which finally drives the lower crossbeam 15 to move along the guide rail 16 to change the distance between the lower crossbeam 15 and the gripping plate 4 of the bag gripping device, so that it can clamp bags of different thicknesses.

[0024] The working principle of this structure is as follows: When the packaging equipment receives a work instruction, the bag output device on the bag output port of the packaging machine 1 sends out the bags from the roll individually. The bags are in a state of side opening. Driven by the fan above the bags, one side of the bag opening is blown open. At this time, the bag gripping device drive motor 3 drives to the end position of the stroke. At this time, the bag gripping device gripping plate 4 moves from a horizontal position to a downward vertical position. During the downward process, the bag gripping device gripping plate 4 is in the middle of the bag, and the bag is in an open state. When it reaches the vertical position of 135°, the bag opening is grabbed back downward by the gripping plate. In this way, one side of the bag can be grabbed and locked in the bag gripping device gripping plate 4. Between the lower crossbeams 15, the automatic delivery of goods into the bag is not affected by the opening space or obstruction during the opening process. At the same time, this structure improves the detection accuracy by adding a bag gripping stroke sensor 7 to detect the working stroke of the bag gripping device 4 and a successful bag gripping detection sensor 6 to detect whether the bag gripping device 4 has successfully gripped the bag. Therefore, this structure can greatly save material and labor costs and solve the problem of high failure rate in the bag opening process during automatic packaging in a simple and practical way. Because the bag is gripped and opened in the middle, the bag is opened in a trapezoidal state, which can meet the automatic packaging of larger goods and greatly reduce the failure rate.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic bag grabbing and opening structure comprising a packing machine (1), characterized in that: The bag output port of the packaging machine (1) is provided with a bag gripping and supporting assembly. The bag gripping and supporting assembly includes a mounting frame (2), a bag gripping device drive motor (3), a bag gripping device gripping plate (4), a bag gripping success detection sensor (6) for checking whether the bag gripping is successful, and a bag gripping stroke sensor (7) for detecting and checking the working stroke of the bag gripping plate. The output shaft of the bag gripping device drive motor (3) is connected to a rotating shaft (8). The bag gripping device gripping plate (4) is connected to the rotating shaft (8). Under the drive of the bag gripping device drive motor (3), the bag gripping device gripping plate (4) can move from a horizontal position to a downward vertical position to limit the bag opening. The bag gripping device drive motor (3) is located on the side of the mounting frame (2). The rotating shaft (8) is rotatably connected inside the mounting frame (2). The mounting frame (2) is fixed on the packaging machine (1).

2. The automatic bag grabbing and opening structure according to claim 1, characterized in that, The bag output port of the packaging machine (1) is also equipped with a limiting mechanism. The limiting mechanism includes a mounting beam (9), a rotary drive motor (10), a second rotary shaft (11), an auxiliary transmission gear (12), a second auxiliary transmission gear (13), a moving frame (14), a lower crossbeam (15), a main transmission gear (24), and a third auxiliary transmission gear (25). There are two mounting beams (9) and they are fixed on both sides of the bag output port of the packaging machine (1). Each of the two mounting beams (9) is equipped with a guide rail (16). A positioning beam (17) is fixed between the two mounting beams (9). The rotary drive motor (10) is fixed below the positioning beam (17). The second rotary shaft (11) is rotatably passed through the positioning beam (17). The output shaft of the rotary drive motor (10) is connected to the main transmission gear (24). The center of the second rotary shaft (11) is provided with a... Auxiliary transmission gear three (25) is connected to the main transmission gear (24) via a transmission chain two (5). Both ends of the rotating shaft two (11) are connected to an auxiliary transmission gear one (12). Each mounting beam (9) is connected to an auxiliary transmission gear two (13) below. The auxiliary transmission gear two (13) and auxiliary transmission gear one (12) on the same side are connected via a transmission chain one (18). A movable frame (14) is connected to each transmission chain one (18). A lower crossbeam (15) is provided between the two movable frames (14). The two ends of the lower crossbeam (15) are slidably connected to the corresponding guide rail (16) via sliders (19). The gripping plate (4) of the bag gripping device can be flipped downward to cooperate with the lower crossbeam (15) to grip and clamp the bag on one side.

3. An automatic bag grabbing and opening structure according to claim 2, characterized in that, A feeding channel (20) is provided below the limiting mechanism.

4. An automatic bag grabbing and opening structure according to claim 1 or 2 or 3, characterized in that, The positioning beam (17) is a T-shaped structure.

5. An automatic bag grabbing and opening structure according to claim 1 or 2 or 3, characterized in that, The bag-grabbing device has a bent part (401) with an arc-shaped bottom surface below the gripping plate (4).

6. An automatic bag grabbing and opening structure according to claim 1 or 2 or 3, characterized in that, The packaging machine (1) has a fixed beam (21) on both sides of the bag output port. The mounting frame (2) is fixed between the two fixed beams (21). The bag grabbing success detection sensor (6) and the bag grabbing stroke sensor (7) are installed on the sensor bracket (22). The sensor bracket (22) is fixed on the mounting frame (2).

7. An automatic bag-grabbing and bag-supporting structure according to claim 1, 2, or 3, characterized in that, The output shaft of the bag-grabbing device drive motor (3) is connected to a coupling (23), and the other end of the coupling (23) is connected to the rotating shaft (8).

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