Bag conveying mechanism

Abstract

The invention relates to a bag feeding mechanism. The device comprises a rack; the conveying assembly comprises two conveying belts and a driving assembly, the two conveying belts are symmetrically arranged on the two sides of the rack in the horizontal direction, the driving assembly drives the two conveying belts to act synchronously, and a first supporting assembly and a second supporting assembly which are arranged in a spaced mode are connected between the two conveying belts; packaging bags located in an area defined by the two conveying belts are placed in the bag warehouse mechanism; the bag taking manipulator is arranged on the outer side of the upper part of the rack; a receding area can be formed between one of the first supporting assembly and the second supporting assembly and one end of the upper portion of the rack so that the bag taking mechanical arm can stretch into the receding area, grab packaging bags on the bag warehouse mechanism and place the packaging bags on the other one of the first supporting assembly and the second supporting assembly. The packaging bag conveying efficiency and accuracy are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging equipment and relates to a bag feeding mechanism. Background Art

[0002] Automatic packaging machines are equipment that automatically weighs, fills and seals bulk materials, and are important equipment in the automated production of warehousing and logistics operations. With the application and promotion of automatic packaging equipment in the fields of petroleum, chemical, feed and other industries, the requirements for the automated operation level of the packaging process are also increasing.

[0003] In the automatic packaging production process, in order to ensure that the bag-picking robot can grab the packaging bag in a timely and accurate manner, the bag-feeding mechanism is required to deliver the packaging bag to the grabbing position of the robot in a timely and accurate manner. The existing bag-feeding technology is limited by the structure of the bag-feeding platform, and the waiting time for the bag-feeding cycle is long, making it difficult to improve the work efficiency of the whole machine.

[0004] Therefore, there is an urgent need to provide a bag delivery mechanism to ensure that the packaging bags are accurately and quickly delivered to the grabbing position of the robot, reduce the waiting time of the system, and improve the work efficiency of the whole machine. Summary of the invention

[0005] To this end, the present invention provides a bag conveying mechanism, which can effectively improve the efficiency and accuracy of packaging bag conveying.

[0006] In order to solve the above technical problems, the present invention provides a bag feeding mechanism, comprising: frame; A conveying assembly, comprising two conveying belts symmetrically arranged on both sides of the frame in the horizontal direction and a driving assembly driving the two conveying belts to move synchronously, and a first supporting assembly and a second supporting assembly spaced apart are connected between the two conveying belts; A bag storage mechanism, in which packaging bags located in an area surrounded by the two conveyor belts are placed; A bag taking robot is arranged on the outer side of the upper part of the frame; Among them, one of the first supporting assembly and the second supporting assembly can form a clearance area with one end of the upper part of the frame, so that the bag-picking robot can reach in and grab the packaging bag on the bag storage mechanism, and place the packaging bag on the other one.

[0007] In one embodiment of the present invention, the driving assembly includes a driving motor, a driving shaft connected to the driving end of the driving motor, a driven shaft, a driving wheel installed at both ends of the driving shaft, and a driven wheel installed at both ends of the driven shaft. The two ends of the upper part of the frame are rotatably connected with one driving shaft and one driven shaft, and the two ends of the lower part of the frame are respectively rotatably connected with one driven shaft, and each of the conveyor belts passes through one driving wheel and three driven wheels on one side of the frame.

[0008] In one embodiment of the present invention, it also includes a tensioning cylinder arranged on the frame, a vertical adjustment groove is arranged at the lower part of the frame, and both ends of one of the driven shafts are arranged in the vertical adjustment groove and can be against the driving end of the tensioning cylinder.

[0009] In one embodiment of the present invention, the first supporting assembly and / or the second supporting assembly comprises conveying rollers distributedly connected between the two conveying belts.

[0010] In one embodiment of the present invention, an air flotation device is provided at one end of the frame away from the bag taking robot. When the packaging bag is conveyed to the position of the air flotation device, the air flotation device can blow air to float the packaging bag.

[0011] In one embodiment of the present invention, a lifting cylinder and a positioning baffle driven by the lifting cylinder are arranged on the side of the air flotation device.

[0012] In one embodiment of the present invention, the air flotation device includes an air blowing pipe installed at one end of the upper portion of the frame and arranged along the width direction of the frame, the air blowing pipe is connected to an air source arranged at one side of the frame, and the air blowing pipe is distributed with air blowing holes.

[0013] In one embodiment of the present invention, it further comprises a mounting plate connected to the frame, wherein the mounting plate is provided with through holes corresponding to the blowing holes.

[0014] In one embodiment of the present invention, the bag taking robot includes a driving cylinder and a suction cup assembly driven by the driving cylinder.

[0015] The above technical solution of the present invention has the following advantages compared with the prior art: The bag conveying mechanism described in the present invention realizes fast, accurate, barrier-free conveying and reliable grasping of packaging bags, improves the efficiency and accuracy of packaging bag conveying, reduces the waiting time and failure rate of the system, and has broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the bag feeding mechanism of the present invention.

[0018] Figure 2 It is a structural schematic diagram of one side of the conveying component of the present invention.

[0019] Figure 3 It is a schematic structural diagram of the other side of the conveying assembly of the present invention.

[0020] Description of the Figures in the Specification: 1. Frame; 11. Tensioning cylinder; 12. Vertical adjustment slot; 2. Conveying assembly; 21. Conveying belt; 22. First supporting assembly; 23. Second supporting assembly; 24. Yielding area; 25. Driving shaft; 26. Driven shaft; 27. Driving wheel; 28. Driven wheel; 29. ​​Driving motor; 3. Bag storage mechanism; 4. Bag taking manipulator; 41. Driving cylinder; 42. Suction cup assembly; 5. Air flotation device; 51. Air blowing pipe; 52. Mounting plate; 6. Lifting cylinder; 61. Positioning baffle. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0022] In the present invention, if directions (up, down, left, right, front and back) are described, it is only for the convenience of describing the technical solution of the present invention, and does not indicate or imply that the technical features referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention.

[0023] In the present invention, "several" means one or more, "multiple" means more than two, "greater than", "less than", "exceed" and the like are understood to exclude the number itself; "above", "below", "within" and the like are understood to include the number itself. In the description of the present invention, if there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0024] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected or electrically connected or able to communicate with each other; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0025] Reference Figures 1 to 3 As shown, a bag delivery mechanism of the present invention comprises: Rack 1; The conveying assembly 2 comprises two conveying belts 21 symmetrically arranged on both sides of the frame 1 in the horizontal direction and a driving assembly driving the two conveying belts 21 to move synchronously, and a first supporting assembly 22 and a second supporting assembly 23 arranged at intervals are connected between the two conveying belts 21; The bag storage mechanism 3 is provided with packaging bags located in the area surrounded by the two conveyor belts 21; The bag taking robot 4 is arranged on the outer side of the upper part of the frame 1; Among them, one of the first supporting assembly 22 and the second supporting assembly 23 can form a clearance area 24 with one end of the upper part of the frame 1, so that the bag picking robot 4 can reach in and grab the packaging bag on the bag storage mechanism 3, and place the packaging bag on the other one.

[0026] In one embodiment, the conveyor belt 21 adopts a synchronous belt, and the driving assembly includes a driving motor 29, a driving shaft 25 connected to the driving end of the driving motor 29, a driven shaft 26, a driving wheel 27 installed at both ends of the driving shaft 25, and a driven wheel 28 installed at both ends of the driven shaft 26. The two ends of the upper part of the frame 1 are rotatably connected with one driving shaft 25 and one driven shaft 26, and the two ends of the lower part of the frame 1 are respectively rotatably connected with one driven shaft 26. Each of the conveyor belts 21 passes through one driving wheel 27 and three driven wheels 28 on one side of the frame 1.

[0027] The two conveyor belts 21 can be moved synchronously by the cooperation of the driving motor 29, the driving shaft 25, the driven shaft 26 and the synchronous belt, thereby ensuring the stability and accuracy of the packaging bag during the conveying process.

[0028] For easy installation, the bag storage mechanism 3 can be installed on one side of the frame 1 and extend from the side of the frame 1 into the area surrounded by the two conveyor belts 21, forming a support frame structure; and the bag picking robot 4 is installed above the frame 1 through an installation structure (such as an installation beam, etc.).

[0029] In one embodiment, it further comprises a tensioning cylinder 11 disposed on the frame 1, a vertical adjustment slot 12 is disposed at the lower part of the frame 1, and both ends of one of the driven shafts 26 are disposed in the vertical adjustment slot 12 and can abut against the driving end of the tensioning cylinder 11. The tensioning cylinder 11 extends out and abuts against the corresponding driven shaft 26 to tighten the conveyor belt 21.

[0030] In one embodiment, the first support assembly 22 and / or the second support assembly 23 comprises conveying rollers distributedly connected between the two conveying belts 21 .

[0031] In one embodiment, an air flotation device 5 is provided at one end of the frame 1 away from the bag taking robot 4. When the packaging bag is conveyed to the position of the air flotation device 5, the air flotation device 5 can blow air to float the packaging bag. By providing the air flotation device 5, the packaging bag can be suspended in the air to avoid obstruction that may be caused by contact with the conveying roller, effectively avoid obstruction, and effectively achieve accurate positioning.

[0032] In one embodiment, a lifting cylinder 6 and a positioning baffle 61 driven by the lifting cylinder 6 are provided beside the air flotation device 5 .

[0033] In one embodiment, the air flotation device 5 includes an air blowing pipe 51 installed at one end of the upper part of the frame 1 and arranged along the width direction of the frame 1. The air blowing pipe 51 is connected to an air source arranged on one side of the frame 1. The air blowing pipe 51 is distributed with air blowing holes.

[0034] It also includes a mounting plate 52 connected to the frame 1, and the mounting plate 52 is provided with through holes corresponding to the blowing holes.

[0035] It can be understood that the air blowing pipe 51 can spray compressed air evenly to the bottom of the packaging bag to make the packaging bag float. The design and distribution of the air blowing holes ensure the uniformity of the air flow to ensure that the packaging bag can float stably.

[0036] The air source is connected to the air blowing pipe 51 to provide compressed air. The air source can be a compressed air supply system, including an air compressor, an air storage tank, a filter, a pressure reducing valve, a pressure gauge and other components.

[0037] In one embodiment, the bag taking robot 4 includes a driving cylinder 41 and a suction cup assembly 42 driven by the driving cylinder 41 .

[0038] By driving the cylinder 41 and the suction cup assembly 42, the robot can accurately grab and place the packaging bag, and cooperate with the circulating action of the conveyor belt to achieve efficient packaging bag transportation and pick-up and placement operations; when the conveyor belt reaches the predetermined position, a signal can be sent through the provided proximity switch to ensure that the bag-taking robot 4 can release the packaging bag in time and proceed to the next step.

[0039] Through the above arrangement, two pairs of conveyor belts are formed between the two conveyor belts 21. One of the two pairs of conveyor belts is in working state, and the other is in a state of waiting for the incoming packaging bags. The double-track structure makes the transportation of packaging bags almost without waiting time, thereby improving the overall work efficiency.

[0040] The conveyor belt 21 is driven by the driving shaft 25, and the air flotation device 5 is located at the head discharge position of the conveyor crawler. When the positioning baffle 61 descends, it is flush with the air flotation platform.

[0041] The bag-taking suction cup assembly 42 sucks the packaging bag into place through the yield area 24, and the conveyor belt in a waiting state starts to move and rotates from the lower part of the conveyor belt 21 to the upper position during the movement. When the conveyor belt reaches the predetermined position, the proximity switch sends a signal, and the bag-taking suction cup assembly 42 releases the packaging bag and places it on the conveyor belt. The conveyor belt continues to move until the packaging bag reaches the position of the flotation device 5. The compressed air of the flotation device 5 floats the packaging bag and makes it suspended in the air; at this time, the positioning baffle 61 cylinder rises, and the packaging bag is blocked by the positioning baffle 61, ensuring that the packaging bag is in the correct position, waiting for the bag-taking robot 4 to grab it and enter the next step of operation.

[0042] The crawler-type bag feeding mechanism is a cyclic action mechanism, one of the two conveying crawlers is in working state, and the other is in waiting state for the incoming packaging bags, with short waiting time and fast response speed. The air flotation device 5 can make the packaging bags suspended in the air, without contact and obstruction, effectively avoiding jamming and achieving accurate positioning.

[0043] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A bag feeding mechanism, characterized in that: include: Rack(1); A conveying assembly (2) comprising two conveying belts (21) symmetrically arranged on both sides of the frame (1) in a horizontal direction and a driving assembly for driving the two conveying belts (21) to move synchronously, wherein a first supporting assembly (22) and a second supporting assembly (23) arranged at intervals are connected between the two conveying belts (21); A bag storage mechanism (3) for placing packaging bags located within an area surrounded by the two conveyor belts (21); A bag taking robot (4) is arranged on the outer side of the upper part of the frame (1); Wherein, one of the first supporting assembly (22) and the second supporting assembly (23) can form a clearance area (24) with one end of the upper portion of the frame (1) so that the bag-picking robot (4) can extend into and grab the packaging bag on the bag storage mechanism (3) and place the packaging bag on the other.

2. A bag feeding mechanism according to claim 1, characterized in that: The driving assembly comprises a driving motor (29), a driving shaft (25) connected to a driving end of the driving motor (29), a driven shaft (26), driving wheels (27) mounted at both ends of the driving shaft (25), and driven wheels (28) mounted at both ends of the driven shaft (26); one driving shaft (25) and one driven shaft (26) are rotatably connected at both ends of the upper portion of the frame (1); one driven shaft (26) is rotatably connected at both ends of the lower portion of the frame (1); and each of the conveyor belts (21) passes through one driving wheel (27) and three driven wheels (28) on one side of the frame (1).

3. A bag feeding mechanism according to claim 2, characterized in that: It also includes a tensioning cylinder (11) arranged on the frame (1), a vertical adjustment slot (12) being arranged at the lower part of the frame (1), and both ends of one of the driven shafts (26) being arranged in the vertical adjustment slot (12) and capable of abutting against the driving end of the tensioning cylinder (11).

4. A bag feeding mechanism according to claim 1, characterized in that: The first support assembly (22) and / or the second support assembly (23) comprises conveying rollers distributed and connected between the two conveyor belts (21).

5. A bag feeding mechanism according to claim 1, characterized in that: An air flotation device (5) is provided at one end of the frame (1) away from the bag taking robot (4); when the packaging bag is transported to the position of the air flotation device (5), the air flotation device (5) can blow air to float the packaging bag.

6. A bag feeding mechanism according to claim 5, characterized in that: A lifting cylinder (6) and a positioning baffle (61) driven by the lifting cylinder (6) are arranged on the side of the air flotation device (5).

7. A bag feeding mechanism according to claim 5, characterized in that: The air flotation device (5) comprises an air blowing pipe (51) installed at one end of the upper part of the frame (1) and arranged along the width direction of the frame (1), the air blowing pipe (51) being connected to an air source arranged at one side of the frame (1), and the air blowing pipe (51) being provided with air blowing holes.

8. A bag feeding mechanism according to claim 7, characterized in that: It also comprises a mounting plate (52) connected to the frame (1), wherein the mounting plate (52) is provided with a through hole corresponding to the blowing hole.

9. The bag feeding mechanism according to claim 1, characterized in that: The bag-taking robot (4) comprises a driving cylinder (41) and a suction cup assembly (42) driven by the driving cylinder (41).

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