Packaging bag opening righting mechanism

Abstract

The utility model relates to a packaging bag mouth righting mechanism which comprises two oppositely-arranged clamping parts, each clamping part comprises a fixed finger fixedly installed and a movable finger rotationally installed, the movable fingers gradually get close to or get away from the fixed fingers under the action of a rotating air cylinder, and air blowing modules are arranged on the outer sides of the fixed fingers and the outer sides of the movable fingers. The air blowing module comprises an air blowing opening with an opening facing the bag opening of the packaging bag. When air blowing is needed, the air blowing electromagnetic valve is accurately and timely opened for air blowing through the air blowing module. When air is exhausted, high-speed compressed air is blown out in the bag opening direction, and the high-speed compressed air can be blown and righting by high-pressure air when encountering a lodging bag opening.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging, and in particular relates to a packaging bag opening straightening mechanism. Background Art

[0002] With the advancement of technology, more and more industrial production fields are adopting automated production, which improves production efficiency, reduces production costs, and facilitates production management. The packaging industry for products such as flour, feed, and chemical raw materials is also gradually moving towards automated packaging production. After the packaging bag is filled with material, a conveyor device transports it to the bag sewing machine for sealing. However, due to the soft material of the woven bag, the bag opening is prone to collapse. If the bag opening collapses, it can cause production accidents such as improper sewing. Utility Model Content

[0003] (1) Purpose of the utility model

[0004] In order to overcome the above shortcomings, the purpose of the present utility model is to provide a packaging bag opening straightening mechanism to solve the above technical problems.

[0005] (2) Technical solution

[0006] To achieve the above objectives, the technical solutions provided by this application are as follows:

[0007] A packaging bag opening straightening mechanism includes two relatively arranged clamping components, wherein the clamping components include a fixed finger installed in a fixed manner and a movable finger installed in a rotatable manner. The movable finger gradually approaches or moves away from the fixed finger under the action of a rotating cylinder. A blowing module is provided on the outside of the fixed finger and the movable finger. The blowing module includes a blowing port with an opening facing the bag opening of the packaging bag.

[0008] Preferably, the movable finger includes a clamping plate corresponding to the fixed finger and a connecting plate vertically connected to the end of the clamping plate, and the connecting plate is fixedly connected to the driving end of the rotary cylinder.

[0009] Preferably, the blowing module includes a gas circulation channel provided therein, an air inlet is provided at the entrance of the gas circulation channel, the air inlet is connected to the gas source, and a plurality of blowing ports are provided at the upper end of the gas circulation channel.

[0010] Preferably, the blowing port is arranged obliquely toward the center of the bag opening of the packaging bag.

[0011] Preferably, the clamping component is arranged 5-10 cm away from the opening of the packaging bag.

[0012] Preferably, it further comprises a PLC control system, wherein the PLC control system is connected to the blowing module and the air source. Beneficial effects

[0013] A key technical feature of this utility model is the installation of an air blowing module on each gripping finger of the clamping component. Each air blowing module features multiple air openings oriented diagonally toward the bag opening. Air flow from the air blowing module is controlled by the system's PLC, based on the equipment's workflow. When air is needed, the air solenoid valve opens precisely and promptly. During the air discharge, high-speed compressed air is blown toward the bag opening. If a bag falls over, the high-pressure air will straighten it.

[0014] The second key technical point of the utility model is that the blowing module can move with the clamping fingers. When the clamping fingers clamp the bag opening, the two blowing modules will be close to both sides of the bag opening. When the blowing is working, the high-pressure airflow blown out by the blowing module is close to both sides of the packaging bag toward the bag opening, ensuring that the bag opening is straight and not tilted. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the clamping component of the utility model from a top view;

[0016] Figure 2 This is a main structural diagram according to an embodiment of the present utility model;

[0017] Figure 3 This is a side view of an embodiment of the present invention;

[0018] Figure 4 It is a diagram of the internal structure of the blowing module according to one embodiment of the present utility model. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clear, the following is a detailed description of the present invention with reference to the attached drawings. Figure 1-4 , the present invention is further described in detail. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0020] The present invention provides a packaging bag opening straightening mechanism comprising two opposing clamping components, each of which is positioned 5-10 cm from the opening of the packaging bag 8. This mechanism facilitates sewing the opening of the packaging bag 8 and prevents the opening of the packaging bag 8 from falling over under the action of the blowing module 2. The mechanism also includes a PLC control system connected to the blowing module 8 and an air source. The PLC control system accurately opens the blowing solenoid valves for blowing, with the gas at both ends blowing the packaging bag straight upward, preventing it from falling over and facilitating sewing. The mechanism has a high degree of automation and does not require excessive human intervention.

[0021] The clamping component includes a fixed finger 3 and a rotatably mounted movable finger. The movable finger gradually approaches or moves away from the fixed finger 3 under the action of a rotating cylinder 7. The movable finger includes a clamping plate 4 corresponding to the fixed finger 3 and a connecting plate 6 perpendicularly connected to the end of the clamping plate 4. The connecting plate 6 is fixedly connected to the driving end of the rotating cylinder 7. The rotating cylinder 7 drives the movable finger to rotate, thereby clamping the packaging bag. The shape of the movable finger effectively prevents the packaging bag from being pinched between the movable and fixed fingers, ensuring production continuity.

[0022] A blowing module 2 is provided on the outside of the fixed finger 3 and the movable finger. The blowing module 2 includes a blowing port 1 that opens toward the opening of the packaging bag 8. The blowing module 2 includes an internal gas flow channel 10. The entrance of the gas flow channel 10 is provided with an air inlet 11, which is connected to an air source. The upper end of the gas flow channel 10 is provided with multiple blowing ports 9. The blowing ports 9 are arranged at an angle toward the center of the packaging bag opening. This effectively gathers gas at the packaging bag opening, ensuring the packaging bag is in an upright state.

[0023] A key technical feature of this utility model is the installation of an air blowing module on each gripping finger of the clamping component. Each air blowing module features multiple air openings oriented diagonally toward the bag opening. Air flow from the air blowing module is controlled by the system's PLC, based on the equipment's workflow. When air is needed, the air solenoid valve opens precisely and promptly. During the air discharge, high-speed compressed air is blown toward the bag opening. If a bag falls over, the high-pressure air will straighten it.

[0024] The second key technical point of the utility model is that the blowing module can move with the clamping fingers. When the clamping fingers clamp the bag opening, the two blowing modules will be close to both sides of the bag opening. When the blowing is working, the high-pressure airflow blown out by the blowing module is close to both sides of the packaging bag toward the bag opening, ensuring that the bag opening is straight and not tilted.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A packaging bag opening straightening mechanism, characterized in that: It includes two clamping parts arranged opposite to each other, wherein the clamping parts include a fixed finger installed fixedly and a movable finger installed rotatably. The finger gradually approaches or moves away from the fixed finger under the action of the rotating cylinder. An air blowing module is provided on the outer side of the packaging bag, and the air blowing module includes an air blowing port opening toward the bag opening of the packaging bag.

2. A packaging bag opening straightening mechanism according to claim 1, characterized in that: The movable finger includes a clamping plate corresponding to the fixed finger and a connecting plate vertically connected to the end of the clamping plate, and the connecting plate is fixedly connected to the driving end of the rotary cylinder.

3. The packaging bag opening straightening mechanism according to claim 1, characterized in that: The blowing module includes a gas circulation channel provided therein, an air inlet is provided at the entrance of the gas circulation channel, the air inlet is connected to the gas source, and a plurality of blowing ports are provided at the upper end of the gas circulation channel.

4. A packaging bag opening straightening mechanism according to claim 1 or 3, characterized in that: The air blowing port is arranged obliquely toward the center of the bag opening of the packaging bag.

5. The packaging bag opening straightening mechanism according to claim 1, characterized in that: The clamping component is arranged 5-10 cm away from the bag opening of the packaging bag.

6. The packaging bag opening straightening mechanism according to claim 1, characterized in that: It also includes a PLC control system, which is connected to the blowing module and the air source.

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