Double station automatic bag feeder

Abstract

The utility model relates to a kind of double-station automatic bag feeder, including rack, belt conveyor, bag suction mechanism, bag conveying mechanism and two bag supporting mechanisms, two bag supporting mechanisms are slidably arranged in the inner top end of rack;By adopting the above technical scheme, when bag is moved to the front end of belt conveyor following belt conveyor, the upper and lower surfaces of bag are sucked by suction mechanism, so as to open bag mouth, bag conveying mechanism enters bag again and props up bag mouth, then is sent to bag supporting mechanism, at this time, one bag supporting mechanism is receiving bag sent by bag conveying mechanism, another bag supporting mechanism transports bag received by it to next process, after transportation is completed, the bag supporting mechanism is reversely slid to the front of bag conveying mechanism again, bag conveying mechanism continues to supply bag for it, another bag supporting mechanism that completes bag receiving work transports bag to next process in the direction opposite to the position of another bag supporting mechanism, reciprocating motion is realized to double-station bag feeding, to improve the purpose of industrial production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of bag feeding machine technology, and in particular to a dual-station automatic bag feeding machine. Background Technology

[0002] In modern industrial production, especially in the packaging process of food, chemical, and pharmaceutical industries, automated equipment has become a core force for improving efficiency, ensuring quality, and reducing costs. Among them, pre-made bag packaging machines are widely used because they can directly use pre-made packaging bags to complete the filling and sealing of materials, are highly adaptable, and produce aesthetically pleasing packaging. Pre-made bag machines typically complete actions such as bag picking, bag opening, bag stretching, filling, sealing, and output in sequence. Their performance directly determines the cycle time and capacity of the entire packaging production line.

[0003] Currently, traditional bag feeding machines are mostly single-station designs, meaning that a set of bag picking, opening, and supporting mechanisms serves a fixed filling station. The workflow is cyclical: a robotic arm takes a bag from the bag magazine, opens the bag opening through a specific mechanism, and then the supporting mechanism's mechanical fingers fully open the bag opening and move it below the filling port, waiting for material to be filled. During the filling process, as well as the subsequent sealing and output processes, the entire execution unit of the bag feeding mechanism must be in a standstill and waiting state until all processes at the current station are completed before it can return to the starting position to process the next bag. This "work-wait" serial mode makes the bag feeding process a significant bottleneck in the packaging production line, limiting the further improvement of the overall production speed. Therefore, it is necessary to design a dual-station automatic bag feeding machine. Utility Model Content

[0004] The purpose of this invention is to provide a dual-station automatic bag feeder to solve the problems existing in the prior art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A dual-station automatic bag feeding machine, wherein the frame is fixedly installed at the top front end of the workbench, a belt conveyor is provided at the top of the workbench, the belt conveyor is arranged from back to front, a bag suction mechanism is provided at the top of the belt conveyor, a bag transfer mechanism and a bag support mechanism are respectively provided at the middle section and the top of the frame, and two bag support mechanisms are provided, both of which are slidably arranged at the inner top of the frame.

[0007] By adopting the above technical solution, when the bag moves to the front end of the belt conveyor, the suction mechanism sucks up the top and bottom of the bag, thereby opening the bag opening so that the bag transfer mechanism can enter the bag and support the bag opening, and then send it to the bag support mechanism. At this time, one bag support mechanism is receiving the bag from the bag transfer mechanism, and the other bag support mechanism transports the bag it received to the next process. After the transport is completed, the bag support mechanism slides in the opposite direction to the bag transfer mechanism, and the bag transfer mechanism continues to supply bags to it. The other bag support mechanism, which has completed the bag receiving work, then transports the bag to the next process in the opposite direction to the other bag support mechanism. The two reciprocate simultaneously to achieve dual-station bag feeding, thereby improving industrial production efficiency.

[0008] In a further embodiment, the bag-supporting mechanism includes a housing, electric push rods, and grippers. Two electric push rods and two grippers are provided. The two electric push rods are symmetrically arranged at the bottom of the housing, with one end of each electric push rod close to the other being a fixed end. The two grippers are symmetrically arranged at the movable ends of the two electric push rods. A linear motor is fixedly installed at the inner top of the frame, with its moving part pointing downwards. A connecting plate is fixedly installed on the moving part of the linear motor, and both bag-supporting mechanisms are fixedly installed at the bottom of the connecting plate.

[0009] By adopting the above technical solution, both bag-supporting mechanisms are fixedly installed at the bottom of the connecting plate. When the linear motor moves, the moving part of the linear motor drives the two bag-supporting mechanisms to achieve synchronous forward or reverse movement through the connecting plate. Thus, the two bag-supporting mechanisms can take turns receiving bags from the bag-transfer mechanism.

[0010] In a further embodiment, the suction bag mechanism includes a first cylinder and a suction cup assembly. Two suction cup assemblies are provided, and the two suction cup assemblies are arranged symmetrically above and below each other. A bracket is fixedly installed on the left and right sides of the belt conveyor. The first cylinder is fixedly installed on the inner top of the bracket. One suction cup assembly is fixedly installed on the bottom of the first cylinder, and the other suction cup assembly is fixedly installed on the worktable.

[0011] In a further embodiment, the suction cup assembly includes a fixing plate and suction heads. Multiple suction heads are provided, and the multiple suction heads are equally spaced from left to right on the fixing plate. Each suction head includes a pipe and a suction cup. A vertically penetrating passage is provided at the center of the suction cup. One end of the pipe is fixedly connected to the fixing plate, and the other end of the pipe is connected to the suction cup. An air tube is connected to one side of the pipe.

[0012] By adopting the above technical solution, when the front end of the bag moves to the front of the belt conveyor, the first cylinder moves downward, and then the two sets of suction cup assemblies generate negative pressure through the air pipes, so that the two sets of suction cups arranged symmetrically above and below can suck up the top and bottom sides of the bag.

[0013] In a further embodiment, the bag-transfer mechanism includes a first drive unit, a rotating rod, a second drive unit, and a support rod. Two first drive units and two support rods are provided. The rotating rods are rotatably mounted within the frame and spaced apart at the top of the support. The middle section of the rotating rod is configured as a receiving box. The second drive unit is located within the receiving box and includes two pneumatic telescopic rods symmetrically arranged within the receiving box. The ends of the two pneumatic telescopic rods that are close to each other are the fixed ends of the pneumatic telescopic rods. Two first drive units are symmetrically arranged at both ends of the rotating rod. Each first drive unit includes a drive cylinder, a return spring, and a connecting block. The connecting block is sleeved on one end of the rotating rod. The return spring is inclinedly positioned at the top of the worktable. The drive cylinder is inclinedly positioned at the top of the return spring. The movable part of the drive cylinder is located at the top of the drive cylinder body, and the movable part of the drive cylinder is movably connected to the connecting block.

[0014] By adopting the above technical solution, the second drive unit uses two pneumatic telescopic rods to move the two support rods closer or further apart, thereby achieving the clamping and feeding of the bag. The first drive unit, through the cooperation of the return spring, drive cylinder and connecting block, drives the rotating rod to rotate, thereby driving the support rod to move clockwise or counterclockwise, thereby achieving the work of feeding the bag to the bag-supporting mechanism.

[0015] In a further embodiment, a control panel is provided on the left side of the rack.

[0016] By adopting the above technical solution, the control panel is used to control the working status of the belt conveyor, the bag suction mechanism, the bag transfer mechanism, the bag support mechanism, and the linear motor.

[0017] In summary, this utility model has the following beneficial effects:

[0018] 1. By setting up two bag-supporting mechanisms to move synchronously, when the bag moves to the front end of the belt conveyor, the suction mechanism sucks up the top and bottom of the bag, thereby opening the bag opening so that the bag transfer mechanism can enter the bag, support the bag opening, and then send it to the bag-supporting mechanism. At this time, one bag-supporting mechanism is receiving the bag from the bag transfer mechanism, while the other bag-supporting mechanism transports the bag it received to the next process. After the transport is completed, the bag-supporting mechanism slides in the opposite direction to the bag transfer mechanism, which continues to supply bags to it. The other bag-supporting mechanism, which has completed its bag receiving work, then transports the bag to the next process in the opposite direction to the other bag-supporting mechanism. The two reciprocating movements at the same time realize dual-station bag feeding, which can improve the efficiency of industrial production. Attached Figure Description

[0019] Figure 1 This is an overall schematic diagram of the present invention, used to illustrate the structure of the dual-station automatic bag feeder;

[0020] Figure 2 This is a structural schematic diagram illustrating the bag suction mechanism and bag transfer mechanism of this utility model;

[0021] Figure 3 This is a structural schematic diagram illustrating the bag-supporting mechanism of this utility model.

[0022] In the diagram, 1. Workbench; 2. Frame; 3. Belt conveyor; 4. Bag suction mechanism; 41. First cylinder; 42. Suction cup assembly; 5. Bag transfer mechanism; 51. First drive unit; 511. Drive cylinder; 512. Return spring; 513. Connecting block; 52. Rotating rod; 53. Second drive unit; 54. Support rod; 6. Bag supporting mechanism; 61. Machine housing; 62. Electric push rod; 63. Gripper; 7. Linear motor; 8. Connecting plate; 9. Control panel. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. 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 specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0025] Example 1:

[0026] like Figures 1-3 As shown, a dual-station automatic bag feeding machine includes a workbench 1 and a frame 2. The frame 2 is fixedly installed at the top front end of the workbench 1. A belt conveyor 3 is provided at the top of the workbench 1. The belt conveyor 3 is arranged from back to front in the transport direction. A bag suction mechanism 4 is provided at the top of the belt conveyor 3. A bag transfer mechanism 5 and a bag support mechanism 6 are respectively provided at the middle section and the top of the frame 2. There are two bag support mechanisms 6, and both bag support mechanisms 6 are slidably arranged at the inner top of the frame 2.

[0027] The bag-supporting mechanism 6 includes a housing 61, electric push rods 62, and grippers 63. Two electric push rods 62 and two grippers 63 are provided. The two electric push rods 62 are symmetrically arranged at the bottom of the housing 61, with the ends of the two electric push rods 62 closest to each other being fixed ends. The two grippers 63 are symmetrically arranged at the movable ends of the two electric push rods 62. A linear motor 7 is fixedly installed at the top inner end of the frame 2. The moving part of the linear motor 7 faces downwards, and a connecting plate 8 is fixedly installed on the moving part of the linear motor 7. Both bag-supporting mechanisms 6 are fixedly installed at the bottom of the connecting plate 8. The bag-suction mechanism 4 includes a first cylinder 41. There are two suction cup assemblies 42, arranged symmetrically vertically. Supports are fixedly mounted on the left and right sides of the belt conveyor 3. The first cylinder 41 is fixedly mounted on the inner top of the support. One suction cup assembly 42 is fixedly mounted on the bottom of the first cylinder 41, and the other suction cup assembly 42 is fixedly mounted on the worktable 1. Each suction cup assembly 42 includes a fixed plate and multiple suction heads, arranged at equal intervals from left to right on the fixed plate. Each suction head includes a pipe and a suction cup. A vertically penetrating passage is provided at the center of the suction cup. One end of the pipe connects to the fixed plate... The fixed plate is connected to the suction cup at the other end of the pipe, and an air tube is connected to one side of the pipe. The bag transfer mechanism 5 includes a first drive unit 51, a rotating rod 52, a second drive unit 53, and a support rod 54. Two of each of the first drive unit 51 and support rod 54 are provided. The rotating rod 52 is rotatably mounted inside the frame 2, and is spaced apart at the top of the support. The middle section of the rotating rod 52 is set as a receiving box. The second drive unit 53 is located inside the receiving box and includes two pneumatic telescopic rods. The two pneumatic telescopic rods are symmetrically arranged left and right inside the receiving box, and are close to each other. One end is the fixed section of the pneumatic telescopic rod. Two first drive units 51 are symmetrically arranged on the left and right sides of the rotating rod 52. Each first drive unit 51 includes a drive cylinder 511, a return spring 512, and a connecting block 513. The connecting block 513 is sleeved on one end of the rotating rod 52. The return spring 512 is inclinedly arranged on the top of the worktable 1. The drive cylinder 511 is inclinedly arranged on the top of the return spring 512. The movable part of the drive cylinder 511 is located at the top of the drive cylinder 511 body. The movable part of the drive cylinder 511 is movably connected to the connecting block 513. A control panel 9 is arranged on the left side of the frame 2.

[0028] Specific implementation process: At the start of the work, the bag is placed on the belt conveyor, which transports the bag from back to front. When the front end of the bag moves to the front of the belt conveyor, the bag suction mechanism is activated. The first cylinder fixed on the bracket moves downward, causing the suction cup assembly fixed at its bottom to move down and cooperate with another suction cup assembly fixed on the worktable. The suction heads of the two suction cup assemblies generate negative pressure through pipes and air tubes, sucking up the top and bottom of the bag, thus opening the bag opening. At this time, the moving part of the drive cylinder of the first drive unit pushes the connecting block, and with the cooperation of the return spring, drives the rotating rod to rotate, causing the support rod to move clockwise. Then, the two pneumatic telescopic rods of the second drive unit move closer to each other, so that the support part of the support rod can enter the already opened bag opening. Then the two pneumatic telescopic rods move away from each other, supporting the bag. After that, the rotating rod continues to rotate counterclockwise under the action of the first drive unit, sending the bag with the opening to the bag-supporting mechanism. In terms of the bag-supporting mechanism, both bag-supporting mechanisms are fixed at the bottom of the connecting plate connected to the linear motor moving part. When one bag-supporting mechanism is in front of the bag-transfer mechanism and ready to receive the bag, the linear motor is not started. The bag-transfer mechanism feeds the bag into the bag-supporting mechanism. The two electric push rods at the bottom of the casing move away from each other, driving the grippers to support the bag. Then, the linear motor starts, and the moving part drives the bag-supporting mechanism to slide forward through the connecting plate, transporting the bag to the next process. At the same time, another bag-supporting mechanism slides in the opposite direction to the front of the bag-transfer mechanism, ready to receive the next bag. When the first bag-supporting mechanism finishes transporting the bag and returns, the second bag-supporting mechanism is already transporting the newly received bag to the next process in the opposite direction. This process is repeated, with the two bag-supporting mechanisms taking turns receiving the bags from the bag-transfer mechanism and alternately transporting them to the next process in different directions. This achieves simultaneous operation of two workstations, greatly improving bag feeding efficiency and meeting the needs of industrial production.

[0029] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0030] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A dual-station automatic bag feeder, comprising a worktable (1) and a frame (2), characterized in that: The frame (2) is fixedly installed at the top front end of the workbench (1). A belt conveyor (3) is provided at the top of the workbench (1). The belt conveyor (3) is arranged from back to front in the transport direction. A bag suction mechanism (4) is provided at the top of the belt conveyor (3). A bag transfer mechanism (5) and a bag support mechanism (6) are respectively provided at the middle section and the top of the frame (2). There are two bag support mechanisms (6). Both bag support mechanisms (6) are slidably arranged at the inner top of the frame (2).

2. The dual-station automatic bag feeder according to claim 1, characterized in that: The bag-supporting mechanism (6) includes a housing (61), an electric push rod (62), and grippers (63). There are two electric push rods (62) and two grippers (63). The two electric push rods (62) are symmetrically arranged at the bottom of the housing (61). The ends of the two electric push rods (62) that are close to each other are fixed ends. The two grippers (63) are symmetrically arranged at the movable ends of the two electric push rods (62). A linear motor (7) is fixedly installed at the top inner end of the frame (2). The moving part of the linear motor (7) is downward. A connecting plate (8) is fixedly installed on the moving part of the linear motor (7). The two bag-supporting mechanisms (6) are fixedly installed at the bottom of the connecting plate (8).

3. The dual-station automatic bag feeder according to claim 1, characterized in that: The suction bag mechanism (4) includes a first cylinder (41) and a suction cup assembly (42). There are two suction cup assemblies (42), which are arranged symmetrically above and below each other. A bracket is fixedly installed on the left and right sides of the belt conveyor (3). The first cylinder (41) is fixedly installed on the inner top of the bracket. One suction cup assembly (42) is fixedly installed on the bottom of the first cylinder (41), and the other suction cup assembly (42) is fixedly installed on the workbench (1).

4. The dual-station automatic bag feeder according to claim 3, characterized in that: The suction cup assembly (42) includes a fixed plate and a suction head. Multiple suction heads are provided, and the multiple suction heads are equally spaced from left to right on the fixed plate. Each suction head includes a pipe and a suction cup. A vertical passage is provided at the center of the suction cup. One end of the pipe is fixedly connected to the fixed plate, and the other end of the pipe is connected to the suction cup. An air tube is connected to one side of the pipe.

5. The dual-station automatic bag feeder according to claim 1, characterized in that: The bag transfer mechanism (5) includes a first drive unit (51), a rotating rod (52), a second drive unit (53), and a support rod (54). Two of each of the first drive unit (51) and support rod (54) are provided. The rotating rod (52) is rotatably mounted within the frame (2). The rotating rods (52) are spaced apart at the top of the support. The middle section of the rotating rod (52) is configured as a receiving box. The second drive unit (53) is located within the receiving box and includes two pneumatic telescopic rods. The two pneumatic telescopic rods are symmetrically arranged left and right within the receiving box, with the ends of the two pneumatic telescopic rods close to each other forming the pneumatic telescopic rod's... At the fixed end, two first drive units (51) are symmetrically arranged at both ends of the rotating rod (52). Each first drive unit (51) includes a drive cylinder (511), a return spring (512), and a connecting block (513). The connecting block (513) is sleeved on one end of the rotating rod (52). The return spring (512) is inclinedly arranged on the top of the worktable (1). The drive cylinder (511) is inclinedly arranged on the top of the return spring (512). The movable part of the drive cylinder (511) is located at the top of the body of the drive cylinder (511). The movable part of the drive cylinder (511) and the connecting block (513) are movably connected.

6. The dual-station automatic bag feeder according to claim 1, characterized in that: A control panel (9) is provided on the left side of the rack (2).

Images