Packaging bag grabbing device

Abstract

The utility model discloses a packaging bag grabbing device which comprises a base, a bag grabbing mechanism and a bag colliding mechanism. A packaging bag grabbing area is arranged on the lower side of the base. The bag grabbing mechanism is arranged on the base; the bag colliding mechanism is arranged on the base and comprises a bag colliding frame and a bag colliding driving assembly, the bag colliding frame is provided with a bag colliding part, the bag colliding frame is movably arranged on the base and enables the bag colliding part to enter or be separated from the packaging bag grabbing area, and the bag colliding driving assembly can drive the bag colliding frame to act. In the initial state, the bag collision frame is located outside the packaging bag grabbing area. When the packaging bag grabbing device works, the bag grabbing mechanism grabs packaging bags in the packaging bag grabbing area on the lower side of the base. When the packaging bag is cut open and internal materials flow out, the bag collision mechanism is started, the bag collision driving assembly drives the bag collision frame to move and enter the packaging bag grabbing area, the bag collision frame collides the packaging bag, the internal materials of the packaging bag are promoted to flow out more sufficiently, and therefore residues of the internal materials of the packaging bag can be reduced, and the material utilization rate is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to a grabbing device, especially a packaging bag grabbing device. BACKGROUND

[0002] Granular materials are usually stored and transported by packaging bags, and before use, the packaging bags can be cut open by an unpacking machine to pour out the materials. The unpacking machine is provided with a packaging bag grabbing device, a moving device and a bag cutting knife. The moving device moves the packaging bag grabbing device to the packaging bags in the stack to grab the packaging bags, and then moves the packaging bag grabbing device and the packaging bags to the bag cutting knife to cut open the packaging bags, so that the granular materials can flow out. Some existing packaging bag grabbing devices include a base and a bag grabbing mechanism, and the bag grabbing mechanism can grab the packaging bags below the base. However, after the packaging bags grabbed by such a packaging bag grabbing device are cut open, the materials in the packaging bags are prone to remain, affecting the utilization rate of the materials. SUMMARY

[0003] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, the utility model provides a packaging bag grabbing device, which can reduce the remaining of the materials in the grabbed packaging bags and improve the utilization rate of the materials.

[0004] According to the packaging bag grabbing device provided by the utility model, the base is provided with a packaging bag grabbing area on the lower side, the bag grabbing mechanism is arranged on the base, and the bag hitting mechanism is arranged on the base and includes a bag hitting frame and a bag hitting driving assembly. The bag hitting frame is provided with a bag hitting part, is movably arranged on the base and makes the bag hitting part enter or leave the packaging bag grabbing area, and the bag hitting driving assembly can drive the bag hitting frame to act.

[0005] According to the packaging bag grabbing device provided by the utility model, at least the following beneficial effects are achieved: in the initial state, the bag hitting frame is located outside the packaging bag grabbing area. When the packaging bag grabbing device works, the bag grabbing mechanism grabs the packaging bags in the packaging bag grabbing area below the base. When the packaging bags are cut open to flow out the internal materials, the bag hitting mechanism is started, the bag hitting driving assembly drives the bag hitting frame to move into the packaging bag grabbing area, so that the bag hitting frame hits the packaging bags, promotes the more sufficient flow out of the internal materials of the packaging bags, and thus the remaining of the internal materials of the packaging bags can be reduced and the utilization rate of the materials can be improved.

[0006] According to some embodiments of the utility model, the bag hitting frame includes a first rod body and a second rod body. The first rod body is arranged along the horizontal direction, one end of the first rod body is connected with one end of the second rod body, the other end of the second rod body is rotatably connected to the base, the bag hitting driving assembly can drive the second rod body to rotate, and the first rod body forms the bag hitting part.

[0007] According to some embodiments of the present application, the bag impact frame is provided with at least two, all the bag impact frames are arranged in the front-back direction, the bag impact frame is rotationally arranged on the base and the rotation axis is arranged in the left-right direction, and the bag impact driving assembly can drive all the bag impact frames to rotate.

[0008] According to some embodiments of the present application, the bag impact driving assembly comprises a first linear driver, a first rack and at least two first gear structures, the first rack extends in the front-back direction, the first rack is movably arranged on the base in the length direction, the first linear driver is used to drive the first rack to move, the first gear structure corresponds to the bag impact frame one by one, and the first rack is transmissionally arranged with the bag impact frame through the first gear structure.

[0009] According to some embodiments of the present application, the bag impact frame is provided with two, the rotation directions of the two bag impact frames are opposite, one of the bag impact frames is located at the front of the base, and the other bag impact frame is located at the rear of the base.

[0010] According to some embodiments of the present application, the base is provided with a vibrator.

[0011] According to some embodiments of the present application, the bag grabbing mechanism comprises a bag grabbing assembly and a bag grabbing driving assembly, the bag grabbing assembly comprises two bag grabbing frames arranged side by side, the bag grabbing frame is provided with a hook claw, the bag grabbing frame is rotationally arranged on the base and can make the hook claw insert or separate from the packaging bag grabbing area, the rotation directions of the two bag grabbing frames of the bag grabbing assembly are opposite, and the bag grabbing driving assembly can drive all the bag grabbing frames to rotate.

[0012] According to some embodiments of the present application, the hook claw is an arc-shaped rod body.

[0013] According to some embodiments of the present application, the rotation axis of the bag grabbing frame is arranged in the front-back direction, the bag grabbing driving assembly comprises a second linear driver, a second rack and a second gear structure, the second rack extends in the left-right direction, the second rack is movably arranged on the base in the length direction, the second linear driver is used to drive the second rack to move, and the second rack is transmissionally arranged with the bag grabbing frame through the second gear structure.

[0014] According to some embodiments of the present application, the bag grabbing assembly is provided with at least two and arranged in the left-right direction; the base is provided with a containing cavity, the containing cavity is located above the packaging bag grabbing area, and the bag grabbing frame can be rotated to a position where the hook claw is retracted into or extended out of the containing cavity.

[0015] Additional aspects and advantages of the present application will be partially given in the following description, partially will become obvious from the following description, or will be learned by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, taken in conjunction with the accompanying drawings, in which:

[0017] Fig. 1 It is a perspective view of the packaging bag grabbing device of the embodiment of the present application;

[0018] Fig. 2 It is a perspective view of the packaging bag grabbing device of the embodiment of the present application when the packaging bag is not grabbed;

[0019] Fig. 3 It is a side view of the packaging bag grabbing device of the embodiment of the present application when the packaging bag is grabbed;

[0020] Fig. 4 It is a side view of the packaging bag grabbing device of the embodiment of the present application when the bag hitting frame enters the packaging bag grabbing area.

[0021] Reference signs:

[0022] Base 100, packaging bag grabbing area 101, accommodating cavity 110;

[0023] Bag grabbing mechanism 200, bag grabbing frame 210, hook claw 211, bag grabbing driving assembly 220, second linear driver 221, second rack 222, second gear structure 223;

[0024] Bag hitting mechanism 300, bag hitting frame 310, first rod body 311, second rod body 312, bag hitting driving assembly 320, first linear driver 321, first rack 322, first gear structure 323;

[0025] Vibrator 400. DETAILED DESCRIPTION

[0026] The embodiments of the present application will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0027] In the description of the utility model, it is understood that the orientation description, such as the orientation or positional relationship of the indication such as upper and lower, is based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation structure and operation, therefore it can not be understood as the limitation of the utility model.

[0028] In the description of the utility model, more refers to two or more. If there is a description to the first, second, it is only used for distinguishing the purpose of technical features, and can not be understood as indicating or implying the relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0029] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be understood broadly, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0030] Refer to Figs. 1 to 4 , the packaging bag grabbing device of the utility model embodiment, including base 100, grab bag mechanism 200 and hit bag mechanism 300. The lower side of base 100 is provided with packaging bag grabbing area 101;Grab bag mechanism 200 is arranged on base 100;Hit bag mechanism 300 is arranged on base 100, and hit bag mechanism 300 includes hit bag frame 310 and hit bag driving assembly 320, hit bag frame 310 is provided with hit bag part, and hit bag frame 310 is movably arranged on base 100 and makes hit bag part enter or leave packaging bag grabbing area 101, and hit bag driving assembly 320 can drive hit bag frame 310 to act.

[0031] In the initial state, hit bag frame 310 is located outside packaging bag grabbing area 101. When packaging bag grabbing device works, grab bag mechanism 200 grabs the packaging bag in the lower side of base 100 in packaging bag grabbing area 101;When the packaging bag is cut open and the internal material flows out, hit bag mechanism 300 starts, and hit bag driving assembly 320 drives hit bag frame 310 to move into packaging bag grabbing area 101, so that hit bag frame 310 hits the packaging bag, promotes the more sufficient flow of the internal material of the packaging bag, thereby can reduce the residue of the internal material of the packaging bag, and improve the material utilization rate.

[0032] Hit bag frame 310 can repeatedly enter and leave packaging bag grabbing area 101 to form multiple times of hitting the packaging bag. When the internal material of the packaging bag flows out, hit bag frame 310 leaves packaging bag grabbing area 101, so as to facilitate discarding the empty packaging bag and grabbing other new packaging bag.

[0033] In the embodiment, the bag hitting frame 310 comprises a first rod body 311 and a second rod body 312, the first rod body 311 is arranged in the horizontal direction, one end of the first rod body 311 is connected with one end of the second rod body 312, the other end of the second rod body 312 is rotationally connected to the base 100, the bag hitting driving assembly 320 can drive the second rod body 312 to rotate, and the first rod body 311 forms a bag hitting part. The bag hitting frame 310 described above hits the cut open packaging bag through the horizontally arranged first rod body 311, the movement track of the first rod body 311 is similar to an arc swing, the packaging bag can be better hit, the internal material of the packaging bag can be more fully flowed out, and the first rod body 311 can hit the packaging bag with a large area, so that the residual material of the whole packaging bag can be fully flowed out.

[0034] Specifically, both ends of the first rod body 311 are connected to the second rod body 312, and the two second rod bodies 312 are rotationally connected to opposite sides of the base 100, so that the movement of the bag hitting frame 310 is more stable, and the structural strength is higher.

[0035] In the embodiment, the bag hitting frame 310 is arranged at least two, all the bag hitting frames 310 are arranged in the front-rear direction, the bag hitting frame 310 is rotationally arranged on the base 100, and the rotation axis is arranged in the left-right direction, and the bag hitting driving assembly 320 can drive all the bag hitting frames 310 to rotate.

[0036] The plurality of bag hitting frames 310 can simultaneously hit a plurality of packaging bags, which is suitable for the occasion that the packaging bag grabbing device can simultaneously grab a plurality of packaging bags, or can hit a large volume of packaging bag at multiple positions respectively; the bag hitting driving assembly 320 drives all the bag hitting frames 310 to rotate, so that the number of the bag hitting driving assembly 320 can be reduced, and the manufacturing cost of the device can be reduced.

[0037] In the embodiment, the bag hitting driving assembly 320 comprises a first linear driver 321, a first rack 322 and at least two first gear structures 323, the first rack 322 extends in the front-rear direction, the first rack 322 is movably arranged on the base 100 in the length direction, the first linear driver 321 is used for driving the first rack 322 to move, the first gear structure 323 corresponds to the bag hitting frame 310 one by one, and the first rack 322 is drivingly arranged with the bag hitting frame 310 through the first gear structure 323.

[0038] The first linear driver 321 drives the first rack 322 to move forward and backward, and the first rack 322 drives the plurality of bag hitting frames 310 to rotate through the plurality of first gear structures 323 respectively, the structure is relatively simple and compact, and the manufacturing cost of the device can be reduced. It should be understood that each bag hitting frame 310 corresponds to a first gear structure 323. The first gear structure 323 can comprise one or a plurality of sub-gears meshing with each other.

[0039] Specifically, the first rack 322 is connected to the base 100 in the front-rear direction through a slide rail and slide block structure. It can be imagined that in other embodiments, the first rack 322 can also be realized to be movable in the front-rear direction through a guide column and guide sleeve structure.

[0040] Specifically, the first linear actuator 321 is a pneumatic cylinder, which is simple in structure and relatively efficient in driving. It can be understood that in other embodiments, the first linear actuator 321 can also be a structure outputting linear force such as an electric cylinder, an oil cylinder, etc., which can be specifically selected by those skilled in the art according to actual needs.

[0041] It can be imagined that in other embodiments, the bag hitting driving assembly 320 can also be a structure including a motor, a chain and a chain wheel, the motor driving the bag hitting frame 310 to rotate through the chain and the chain wheel.

[0042] In an embodiment, two bag hitting frames 310 are provided, and the rotation directions of the two bag hitting frames 310 are opposite, one of the bag hitting frames 310 is located at the front of the base 100, and the other bag hitting frame 310 is located at the rear of the base 100. The grabbing mechanism is provided with two bag hitting frames 310, which is relatively simple in structure and low in manufacturing cost compared with simultaneously providing three or more bag hitting frames 310.

[0043] Specifically, in the present embodiment, one of the first gear structures 323 includes two sub-gears meshing with each other, one of the sub-gears rotates synchronously with the corresponding bag hitting frame 310, and the other sub-gear meshes with the first rack 322. The other first gear structure 323 includes a sub-gear, the sub-gear meshes with the first rack 322, and the sub-gear rotates synchronously with the corresponding bag hitting frame 310, so that the first straight rack can drive the two bag hitting frames 310 to rotate in opposite directions.

[0044] It can be imagined that in other embodiments, the bag hitting frame 310 can also be connected to the base 100 in the horizontal direction through a slide rail and slide block structure or a guide column and guide sleeve structure, the bag hitting frame 310 enters or exits the packaging bag grabbing area 101 through horizontal movement to hit the packaging bag; correspondingly, the bag hitting driving assembly 320 can be a linear actuator such as a pneumatic cylinder, an oil cylinder or an electric cylinder, etc., driving the bag hitting frame 310 to move horizontally.

[0045] It can be imagined that the bag hitting part can also be a protrusion on the bag hitting frame 310, the bag hitting frame 310 hits the packaging bag through the small area of the protrusion, and the bag hitting frame 310 can be provided with multiple protrusions to hit the packaging bag relatively uniformly.

[0046] It can be imagined that the bag hitting frame 310 can also be provided with three or more, which can be specifically selected by those skilled in the art according to actual needs.

[0047] In the embodiment, the base 100 is provided with a vibrator 400. The vibrator 400 can be started to drive the base 100 as a whole to vibrate after the packaging bag is cut, so as to better shake off the residual material in the packaging bag. Specifically, the vibrator 400 is a vibration motor. It can be imagined that in other embodiments, the vibrator 400 can also be, for example, an electromagnetic vibrator 400, a pneumatic vibrator 400, etc., which can be specifically selected by those skilled in the art according to actual needs.

[0048] In the embodiment, the bag grabbing mechanism 200 includes a bag grabbing assembly and a bag grabbing driving assembly 220. The bag grabbing assembly includes two bag grabbing frames 210 arranged side by side, and the bag grabbing frame 210 is provided with a hook claw 211. The bag grabbing frame 210 is rotationally arranged on the base 100 and can make the hook claw 211 insert into or separate from the packaging bag grabbing area 101. The two bag grabbing frames 210 of the bag grabbing assembly are reversely rotated, and the bag grabbing driving assembly 220 can drive all the bag grabbing frames 210 to rotate. When the packaging bag enters the packaging bag grabbing area 101, the bag grabbing driving assembly 220 drives the bag grabbing frame 210 to rotate, and the hook claw 211 of the bag grabbing frame 210 inserts into the packaging bag and hooks the packaging bag. The two bag grabbing frames 210 can stably hook one packaging bag, so as to realize the function of grabbing the packaging bag. When the bag grabbing driving assembly 220 drives the bag grabbing frame 210 to separate from the packaging bag grabbing area 101, the hook claw 211 is pulled out of the packaging bag, and then the packaging bag can separate from the packaging bag grabbing device, that is, the packaging bag grabbing device releases the packaging bag.

[0049] In the embodiment, the hook claw 211 is an arc-shaped rod body, and the process of inserting into the packaging bag and pulling out of the packaging bag is relatively smooth, and the hook claw 211 can better bear the weight of the packaging bag.

[0050] Specifically, the end of the hook claw 211 is a pointed end, which is convenient for inserting into the packaging bag. Each bag grabbing frame 210 is arranged with a plurality of hook claws 211 in the front-rear direction.

[0051] In the embodiment, the rotation axis of the bag grabbing frame 210 is arranged in the front-rear direction, and the bag grabbing driving assembly 220 includes a second linear driver 221, a second rack 222, and a second gear structure 223. The second rack 222 extends in the left-right direction, and the second rack 222 is movably arranged on the base 100 in the length direction. The second linear driver 221 is used to drive the second rack 222 to move, and the second rack 222 is drivingly arranged with the bag grabbing frame 210 through the second gear structure 223. The second linear driver 221 drives the second rack 222 to move left and right, and the second rack 222 drives the bag grabbing frame 210 through the second gear structure 223, so as to simultaneously drive a plurality of bag grabbing frames 210 to rotate. The structure is simple and easy to implement.

[0052] Specifically, the second rack 222 is connected to the base 100 in the left-right direction through a sliding rail and sliding block structure, and the second linear actuator 221 is a pneumatic cylinder. It can be imagined that in other embodiments, the second rack 222 can also be movable relative to the base 100 in the left-right direction through a guide pillar and guide sleeve structure; and the second linear actuator 221 can also be a structure that outputs linear force, such as an electric cylinder or an oil cylinder, which can be specifically selected by those skilled in the art according to actual needs.

[0053] Specifically, each bag grabbing assembly corresponds to a second gear structure 223, the second gear structure 223 includes two sub-gears, the two bag grabbing frames 210 of each bag grabbing assembly rotate synchronously with a sub-gear respectively, the two sub-gears are meshed with each other, and one of the sub-gears is meshed with the second rack 222, so that the two bag grabbing frames 210 of the same bag grabbing assembly rotate in opposite directions.

[0054] It can be imagined that in other embodiments, the bag grabbing driving assembly 220 can also include a motor, a chain, and two chain wheels, each bag grabbing frame 210 rotates synchronously with a chain wheel, and the motor drives all the chain wheels to rotate through the chain, so as to drive one driver to drive all the bag grabbing frames 210 to rotate; or the bag grabbing driving assembly 220 adopts a plurality of speed reduction motors, each speed reduction motor drives one bag grabbing frame 210 to rotate.

[0055] In the embodiment, the bag grabbing assembly is provided with three and arranged in the left-right direction, so that the bag grabbing device can grab three rows of packaging bags at the same time, and the grabbing efficiency is improved. It can be understood that in other embodiments, the number of bag grabbing assemblies can also be one, two, four or more, which can be specifically selected by those skilled in the art according to actual needs.

[0056] In the embodiment, the base 100 is provided with a receiving cavity 110, the receiving cavity 110 is located above the packaging bag grabbing area 101, and the bag grabbing frame 210 can rotate to a position where the hook claw 211 is retracted into or protrudes out of the receiving cavity 110. When the hook claw 211 is retracted into the receiving cavity 110, it is convenient to avoid the packaging bag from entering the packaging bag grabbing area 101, and the safety risk of production personnel being injured by the exposed hook claw 211 is reduced, and the use safety of the packaging bag grabbing device is improved.

[0057] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0058] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A packaging bag gripping device characterized by comprising: The package bag grabbing device comprises a base (100) provided with a package bag grabbing area (101) on the lower side; a bag grabbing mechanism (200) arranged on the base (100); and a bag hitting mechanism (300) arranged on the base (100), wherein the bag hitting mechanism (300) comprises a bag hitting frame (310) provided with a bag hitting part and a bag hitting driving assembly (320) capable of driving the bag hitting frame (310) to move. The bag hitting frame (310) comprises a first rod body (311) arranged in the horizontal direction and a second rod body (312) connected to one end of the first rod body (311), and the other end of the second rod body (312) is rotatably connected to the base (100), and the bag hitting driving assembly (320) is capable of driving the second rod body (312) to rotate, and the first rod body (311) forms the bag hitting part. The bag hitting frame (310) is arranged in at least two, and all the bag hitting frames (310) are arranged in the front-rear direction, and the bag hitting frame (310) is rotatably arranged on the base (100) and the rotation axis is arranged in the left-right direction, and the bag hitting driving assembly (320) is capable of driving all the bag hitting frames (310) to rotate. The bag hitting driving assembly (320) comprises a first linear driver (321), a first rack (322) extending in the front-rear direction, and at least two first gear structures (323), the first rack (322) is movably arranged on the base (100) in the length direction, the first linear driver (321) is used for driving the first rack (322) to move, and the first rack (322) is drivingly arranged with the bag hitting frame (310) through the first gear structure (323).

2. The package grasping device of claim 1, wherein: The bag hitting frame (310) is arranged in two, and the rotation directions of the two bag hitting frames (310) are opposite, one of the bag hitting frames (310) is located at the front of the base (100), and the other bag hitting frame (310) is located at the rear of the base (100).

3. The package grasping device of claim 1, wherein: The base (100) is provided with a vibrator (400).

4. The package grasping device of claim 3, wherein: The bag grabbing mechanism (200) comprises a bag grabbing assembly and a bag grabbing driving assembly (220), the bag grabbing assembly comprises two bag grabbing frames (210) arranged side by side, the bag grabbing frame (210) is provided with a hook claw (211), the bag grabbing frame (210) is rotatably arranged on the base (100) and can make the hook claw (211) insert or separate from the package bag grabbing area (101), the two bag grabbing frames (210) of the bag grabbing assembly are opposite in rotation direction, and the bag grabbing driving assembly (220) can drive all the bag grabbing frames (210) to rotate.

5. The package grasping device of claim 3, wherein: The hook claw (211) is an arc-shaped rod body.

6. The package grasping device of claim 1, wherein: ​ 7. The package grasping device of claim 1, wherein: ​ 8. The package grasping device of claim 7, wherein: ​ 9. The package grasping device of claim 7, wherein: The rotation axis of the bag grabbing frame (210) is arranged along the front-rear direction, the bag grabbing drive assembly (220) comprises a second linear actuator (221), a second rack (222) and a second gear structure (223), the second rack (222) extends along the left-right direction, the second rack (222) is movably arranged on the base (100) along the length direction, the second linear actuator (221) is used for driving the second rack (222) to move, and the second rack (222) is drivingly arranged with the bag grabbing frame (210) through the second gear structure (223).

10. The package grasping device of claim 7, wherein: The bag grabbing assembly is arranged with at least two and arranged along the left-right direction; the base (100) is provided with a containing cavity (110), the containing cavity (110) is located above the packaging bag grabbing area (101), and the bag grabbing frame (210) can rotate to a position where the hook claws (211) are retracted into or protrude out of the containing cavity (110).

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