Bag feeding and opening device

Abstract

The utility model provides a bag feeding and opening device which comprises a bag clamping and conveying mechanism and a bag opening mechanism, the bag clamping and conveying mechanism comprises a bag clamping assembly and a movable installation frame, the bag clamping assembly is installed on the movable installation frame and can move between two stations, the bag clamping assembly is provided with one or more pairs of bag clamps, and the bag clamps are arranged on the movable installation frame. The bag opening mechanism is connected to the bag clamping and conveying mechanism and can move between two stations together with the bag clamping assembly, the bag opening mechanism is provided with a bag opening assembly, the bag opening assembly is provided with one or more bag suction parts, the bag suction parts and the bag clamps are arranged in a one-to-one correspondence mode, the bag opening mechanism is further provided with a lifting mechanism of the bag opening assembly, and the lifting mechanism is connected with the bag clamping assembly. And the bag opening assembly can be lifted, so that the bag suction part can move to the bag opening position and leave the bag in the height direction. According to the bag opening device, bags can be opened in the process of feeding the bags to the filling mechanism, efficiency is improved, stations are saved, meanwhile, the structure is simple, and the bag opening work of a plurality of bags can be carried out at the same time in a one-to-many mode.

Description

Technical Field

[0001] This utility model relates to a bag opening device. Background Technology

[0002] In bag filling, bag opening and clamping are essential steps. Generally, the clamping station and the bag removal station are two consecutive processes. After clamping, the bag is opened. The process takes a long time and the equipment structure is more complicated, which reduces the working efficiency of the bag feeding machine. Utility Model Content

[0003] The purpose of this invention is to provide a multi-station bag feeding device that combines the bag opening mechanism and the bag feeding mechanism into one station, enabling bag opening during the bag feeding process and improving efficiency.

[0004] Therefore, the present invention adopts the following technical solution:

[0005] A bag opening device includes a bag clamping and feeding mechanism and a bag opening mechanism. The bag clamping and feeding mechanism includes a bag clamping assembly and a movable mounting frame. The bag clamping assembly is mounted on the movable mounting frame and can move between two workstations. The bag clamping assembly is provided with one or more pairs of bag clamps. The bag opening mechanism is connected to the bag clamping and feeding mechanism and can move together with the bag clamping assembly between the two workstations. The bag opening mechanism is provided with a bag opening assembly. The bag opening assembly is provided with one or more sets of bag suction parts. The sets of bag suction parts are arranged in a one-to-one correspondence with the pairs of bag clamps. The bag opening mechanism is also provided with a lifting mechanism for the bag opening assembly, which can lift and lower the bag opening assembly so that the bag suction parts can move in the height direction to the bag opening position and leave the bag.

[0006] Based on the above technical solutions, the present invention may also adopt the following further technical solutions, or combine these further technical solutions:

[0007] The bag-opening mechanism is also mounted on the mobile mounting frame.

[0008] The lifting mechanism is mounted on the mobile mounting frame, and the bag opening assembly is connected to the lifting mechanism.

[0009] The bag opening assembly includes a first suction bag element and a second suction bag element arranged opposite to each other. The first suction bag element and the second suction bag element are respectively provided with suction bag parts. The suction bag parts of the first suction bag element and the second suction bag element are paired together to respectively suck up both sides of the bag. The bag opening assembly is also provided with an opening and closing drive assembly. The first suction bag element and the second suction bag element are connected to the opening and closing drive assembly and can perform opening and closing movements.

[0010] The opening and closing drive assembly is connected to the lifting mechanism, and the bag opening assembly is connected to the lifting mechanism.

[0011] The bag clamping and feeding mechanism is provided with multiple pairs of bag clamps in parallel, and the bag opening component is provided with a corresponding number of suction bag parts. The first suction bag element and the second suction bag element are both long tube structures with multiple suction bag parts arranged along the length of the long tube.

[0012] One of the two workstations is the bag-retrieving workstation; the lifting mechanism is mounted on the movable mounting frame and moves synchronously to the bag-retrieving workstation with the bag clamping assembly; and the bag suction part is located above the bag when the bag clamp moves to the bag-retrieving workstation. When the bag clamp clamps the bag and moves back to the other workstation under the drive of the movable mounting frame, the bag opening mechanism performs the bag opening action.

[0013] The movement between the two workstations is a linear movement in the front-to-back direction, and the bag opening component also performs an opening and closing movement in this direction.

[0014] The lifting mechanism is a linear lifting mechanism, which includes a lifting drive cylinder, a mounting base, and a lifting guide mechanism. The lifting drive cylinder is mounted on a movable mounting frame, and the mounting base is connected to the piston of the lifting drive cylinder. The lifting guide mechanism includes a guide rod, which is connected to the mounting base, and the guide sleeve of the guide rod is mounted on the movable mounting frame.

[0015] The opening and closing drive assembly includes an opening and closing drive power source, a common connecting rod, a first connecting rod, and a second connecting rod. The opening and closing drive power source is connected to the common connecting rod and drives it to rotate around an axis perpendicular to the horizontal plane. One end of the first connecting rod and the second connecting rod are respectively rotatably connected to the two ends of the common connecting rod. The other ends of the first connecting rod and the second connecting rod are respectively connected to a first connecting frame and a second connecting frame. The first connecting frame and the second connecting frame are respectively connected to a first suction bag element and a second suction bag element. The opening and closing drive power source is connected to the mounting base. The mounting base is provided with a guide sleeve that cooperates with the guide rods in the first connecting frame and the second connecting frame.

[0016] By adopting the technical solution of this utility model, the bag can be opened during the process of feeding the bag to the filling mechanism, which improves efficiency and saves work positions. At the same time, the structure is simple and can also perform multiple bag opening operations simultaneously. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the filling equipment using this utility model.

[0018] Figure 2 for Figure 1 An exploded side view of the filling equipment shown.

[0019] Figure 3 This is a schematic diagram of the combination of the bag clamping component and the bag opening component in this utility model.

[0020] Figure 4 This is a schematic diagram of the bag opening component in this utility model.

[0021] Figure 5 This is a schematic diagram of the bag opening component drive part in this utility model.

[0022] Figure 6 This is a top view of the bag-opening component drive part in this utility model. Detailed Implementation

[0023] Referring to the accompanying drawings, this utility model provides a bag-feeding and opening device, including a bag-clamping and feeding mechanism and a bag-opening mechanism. The bag-clamping and feeding mechanism includes a bag-clamping assembly and a movable mounting frame 1. The bag-clamping assembly is mounted on the movable mounting frame and can move between two workstations. The bag-clamping assembly has one or more pairs of bag clamps. Reference numeral 101 represents the movable guide rail of the movable mounting frame. Movable platforms 3 (cylinder assemblies) can be connected to both sides of the movable mounting frame 1 to drive the movable mounting frame 1 to move linearly along the guide rail. Reference numeral 200 represents a bag.

[0024] The bag opening mechanism is connected to the bag clamping and feeding mechanism and can move between two workstations together with the bag clamping assembly. The bag opening mechanism is provided with a bag opening component, which is provided with one or more sets of bag suction parts. The sets of bag suction parts are arranged in a one-to-one correspondence with the bag clamping pairs. The bag opening mechanism is also provided with a lifting mechanism for the bag opening component, which can lift the bag opening component, so that the bag suction parts can move to the bag opening position and leave the bag in the height direction.

[0025] In this embodiment, the movement between the two workstations is a linear movement in the back-and-forth direction, and the bag opening component also performs an opening and closing movement in this direction. In this embodiment, the two workstations are the bag-picking workstation S1 (the location where the bag is picked up) and the filling and sealing workstation S2 (the location of the filling head). In this embodiment, the bag clamping component has multiple pairs of bag clamps arranged side-by-side, and the bag opening component has a corresponding number of suction bag assembly groups.

[0026] The bag clamp pair consists of a left bag clamp 21 and a right bag clamp 22. The bag clamping assembly is equipped with an opening and closing drive mechanism for the left bag clamp 21 and the right bag clamp 22, as well as a spacing adjustment mechanism 20 for the left bag clamp 21 and the right bag clamp 22. The spacing adjustment mechanism 20 can be as shown in the figure, using a screw and nut mechanism, wherein the screw is connected to a motor, and the nut is connected to the bag clamp. The screws corresponding to the left bag clamp 21 and the right bag clamp 22 have opposite thread directions. The spacing between the left bag clamp 21 and the right bag clamp 22 is adjusted under the drive of the motor. Each bag clamp pair can be equipped with a separate motor, or all the screws can be connected into a single unit through a coupling and driven to rotate by a single motor. These structures are all existing technologies.

[0027] The bag-opening mechanism is also mounted on the movable mounting frame 1. Preferably, the lifting mechanism in the bag-opening mechanism is mounted on the movable mounting frame 1, and the bag-opening assembly in the bag-opening mechanism is connected to the lifting mechanism.

[0028] In this embodiment, the lifting mechanism is a linear lifting mechanism, which includes a lifting drive cylinder 41, a mounting base 42, and a lifting guide mechanism. The lifting drive cylinder 41 is mounted on the movable mounting frame 1, the mounting base 42 is connected to the piston of the lifting drive cylinder 41, and the lifting guide mechanism includes a guide rod 43, which is connected to the mounting base 42. The guide sleeve 44 of the guide rod 43 is mounted on the movable mounting frame 1.

[0029] The lifting mechanism, being mounted on the mobile mounting frame 1, moves synchronously with the bag clamping assembly to the bag taking station S1. Furthermore, when the bag clamp moves to the bag taking station S1, the suction part is located above the bag 200. While the bag clamp holds the bag 200, the lifting mechanism in the bag opening mechanism descends, positioning the bag opening assembly at the bag opening height. When retracting towards the filling and sealing station S2, the bag opening assembly performs the bag opening action.

[0030] The bag opening assembly includes a first suction element 51 and a second suction element 52 arranged opposite to each other. The first suction element 51 and the second suction element 52 are each provided with suction portions 50, used to respectively suction both sides of the bag 200. The suction portions 50 can be air inlets or suction cups, etc. The suction portions 50 of the first suction element 51 and the second suction element 52 are grouped together. Depending on the characteristics of the bag 200, the number of air inlets or suction cups of the first suction element 51 and the second suction element 52 participating in each suction portion group can be one or more, and the number of air inlets or suction cups in each suction portion group can be two or more. Each suction portion group is for one bag 200. This embodiment also provides a simple structure suitable for setting multiple groups of suction portions. The first suction element 51 and the second suction element 52 are both long tube structures, with multiple suction portions 50 arranged along the length of the long tube.

[0031] The bag opening assembly also includes an opening and closing drive assembly. The first suction bag element 51 and the second suction bag element 52 are connected to the opening and closing drive assembly and can perform opening and closing movements. The opening and closing drive assembly is connected to the lifting mechanism, and the bag opening assembly is connected to the lifting mechanism. When performing the bag opening action, the first suction bag element 51 and the second suction bag element 52 first move towards the bag to suck up the bag, and then move away from the bag to open it. At the same time, the bag clamp contracts synchronously to facilitate the opening of the bag.

[0032] In this embodiment, the opening and closing drive assembly includes an opening and closing drive power 61, a common connecting rod 62, a first connecting rod 63, and a second connecting rod 64. The opening and closing drive power 61 is connected to the common connecting rod 62 and drives it to rotate around an axis perpendicular to the horizontal plane. One end of the first connecting rod 63 and the second connecting rod 64 are respectively rotatably connected to the two ends of the common connecting rod 62. The other ends of the first connecting rod 63 and the second connecting rod 64 are respectively connected to the first connecting frame 65 and the second connecting frame 66. The first connecting frame 65 and the second connecting frame 66 are respectively connected to the first suction bag element 51 and the second suction bag element 52. The opening and closing drive power is connected to the mounting base 42. The mounting base is provided with guide sleeves 67 and 68 that cooperate with the guide rods in the first connecting frame 65 and the second connecting frame 66.

[0033] The attached diagram, number 300, is a guide assembly for the drop of a strap that provides bags to the bag-collecting station.

[0034] Unless otherwise specified, in this utility model, terms such as "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and "axial" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe orientation or positional relationships in this utility model are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood in conjunction with the accompanying drawings and according to the specific circumstances.

[0035] Unless otherwise expressly specified and limited, the terms "set," "clamped," and "connected" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the protection scope of the present utility model.

Claims

1. A bag-feeding and opening device, comprising a bag-clamping and feeding mechanism and a bag-opening mechanism, wherein the bag-clamping and feeding mechanism includes a bag-clamping assembly and a movable mounting frame, the bag-clamping assembly is mounted on the movable mounting frame and can move between two workstations, and the bag-clamping assembly is provided with one or more pairs of bag clamps, characterized in that, The bag opening mechanism is connected to the bag clamping and feeding mechanism and can move between two workstations together with the bag clamping assembly. The bag opening mechanism is provided with a bag opening component, which is provided with one or more sets of bag suction parts. The sets of bag suction parts are arranged in a one-to-one correspondence with the bag clamping pairs. The bag opening mechanism is also provided with a lifting mechanism for the bag opening component, which can lift the bag opening component, so that the bag suction parts can move to the bag opening position and leave the bag in the height direction.

2. The bag-opening device as described in claim 1, characterized in that, The bag-opening mechanism is mounted on a mobile mounting frame.

3. The bag-opening device as described in claim 1, characterized in that, The lifting mechanism is mounted on the mobile mounting frame, and the bag opening assembly is connected to the lifting mechanism.

4. The bag-opening device as described in claim 1, characterized in that, The bag opening assembly includes a first suction element and a second suction element arranged opposite to each other. The first suction element and the second suction element are respectively provided with suction parts. The suction parts of the first suction element and the second suction element are paired together to suck up both sides of the bag respectively. The bag opening assembly is further provided with an opening and closing drive assembly, wherein the first suction bag element and the second suction bag element are connected to the opening and closing drive assembly and are able to perform opening and closing movements.

5. The bag-opening device as described in claim 4, characterized in that, The opening and closing drive assembly is connected to the lifting mechanism, and the bag opening assembly is connected to the lifting mechanism.

6. The bag-opening device as described in claim 4, characterized in that, The bag clamping and feeding mechanism is provided with multiple pairs of bag clamps in parallel, and the bag opening component is provided with a corresponding number of suction bag parts. The first suction bag element and the second suction bag element are both long tube structures with multiple suction bag parts arranged along the length of the long tube.

7. The bag-opening device as described in claim 3, characterized in that, One of the two workstations is the bag-retrieving workstation; the lifting mechanism is mounted on the movable mounting frame and moves synchronously to the bag-retrieving workstation with the bag clamping assembly; and the bag suction part is located above the bag when the bag clamp moves to the bag-retrieving workstation. When the bag clamp clamps the bag and moves back to the other workstation under the drive of the movable mounting frame, the bag opening mechanism performs the bag opening action.

8. The bag-opening device as described in claim 1, characterized in that, The movement between the two workstations is a linear movement in the front-to-back direction, and the bag opening component also performs an opening and closing movement in this direction.

9. The bag-opening device as described in claim 3, characterized in that, The lifting mechanism is a linear lifting mechanism, which includes a lifting drive cylinder, a mounting base, and a lifting guide mechanism. The lifting drive cylinder is mounted on a movable mounting frame, and the mounting base is connected to the piston of the lifting drive cylinder. The lifting guide mechanism includes a guide rod, which is connected to the mounting base, and the guide sleeve of the guide rod is mounted on the movable mounting frame.

10. The bag-opening device as described in claim 5, characterized in that, The lifting mechanism is a linear lifting mechanism, which includes a lifting drive cylinder, a mounting base, and a lifting guide mechanism. The lifting drive cylinder is mounted on a movable mounting frame, and the mounting base is connected to the piston of the lifting drive cylinder. The lifting guide mechanism includes a guide rod, which is connected to the mounting base, and the guide sleeve of the guide rod is mounted on the movable mounting frame. The opening and closing drive assembly includes an opening and closing drive power source, a common connecting rod, a first connecting rod, and a second connecting rod. The opening and closing drive power source is connected to the common connecting rod and drives it to rotate around an axis perpendicular to the horizontal plane. One end of the first connecting rod and the second connecting rod are respectively rotatably connected to the two ends of the common connecting rod. The other ends of the first connecting rod and the second connecting rod are respectively connected to a first connecting frame and a second connecting frame. The first connecting frame and the second connecting frame are respectively connected to a first suction bag element and a second suction bag element. The opening and closing drive power source is connected to the mounting base. The mounting base is provided with a guide sleeve that cooperates with the guide rods in the first connecting frame and the second connecting frame.

Images