A soft bag opening method and system

Abstract

The application discloses a soft bag opening method and system, and the method is used for opening the opening of a soft bag and comprises the following steps: positioning both sides of the middle part of the bag opening; bending the bag opening on at least one side of the bag opening positioning part to make the bag opening dislocated; and opening the bag opening from the bag opening positioning part. The system comprises bag opening mechanisms arranged on both sides of the bag opening and a bag blocking part, the bag opening mechanisms can be used for positioning both sides of the bag opening, and the bag opening system further comprises bag poking mechanisms arranged on the side edges of the bag opening positioning part and used for bending the bag opening. In the application, the bag opening positioning part is not moved during the bending of the bag opening. Under the action of the middle part positioning and the side edge bending, the opening of the soft bag is forced to bend and deform, so that the dislocation separation force is generated, the gap of the bag opening is generated, and the bag opening is more relaxed due to the bending of the side edge of the bag opening. Therefore, the bag opening is in a relaxed state and has a gap, the bag opening becomes much easier, and the problem of low bag opening qualified rate in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of soft bags, in particular to a soft bag opening method and system. BACKGROUND

[0002] Soft bag infusion products filled at the tail or side, including but not limited to ordinary liquid single cavity bags, liquid-liquid multi-cavity bags, and high-end powder-liquid double-chamber bags, etc. products, are made of non-PVC infusion special film. When filling, the bag body needs to be opened to facilitate the needle to enter the bag for filling. The current mainstream technology is to open the bag directly by setting an opening mechanism on both sides of the bag body, but the opening effect is not ideal. The known improvement technology is to open the bag by positioning holes or clamping mechanisms, which improves the opening effect, but the implementation mechanism is complex, and the bag body needs to be loaded onto a mechanism that can bend and move. At the same time, the moving mechanism needs to be controlled synchronously with the vacuum opening mechanism, which is difficult and costly, and the opening qualified rate still cannot meet the mass production requirements. The opening qualified rate directly affects the final product qualified rate and production cost. Affected by the current opening success rate, soft bag infusion products using tail filling technology have not been mass-produced and applied. SUMMARY

[0003] The purpose of the present application is to provide a soft bag opening method and system, which solves the problem of low opening qualified rate in the prior art.

[0004] The present application is implemented as follows: a soft bag opening method for opening the opening of a soft bag, the opening method being as follows:

[0005] Step one, positioning the middle part of both sides of the bag opening;

[0006] Step two, bending the bag opening at least one side of the bag opening positioning part to misalign the bag opening;

[0007] Step three, opening the bag opening from the bag opening positioning part.

[0008] In the present application, the bag opening is first positioned from the middle part of both sides, and then the side of the bag opening positioning part is bent, and the positioning part is not moved during the bending of the bag opening. Under the action of middle positioning and side bending, the opening of the soft bag will be stressed and deformed, thereby generating a misalignment force to create a gap in the bag opening. At the same time, due to the bending of the side of the bag opening, the bag opening will be more relaxed. Therefore, the bag opening is in a relaxed state with a gap, making it much easier to open the bag, and solving the problem of low opening qualified rate in the prior art.

[0009] The opening of the soft bag to be opened is the bag opening.

[0010] A further technical solution of the present application is as follows: the opening method is as follows:

[0011] Step 1: The bag opening mechanism positions the two sides of the center of the bag opening;

[0012] Step 2: The bag-punching mechanism bends the bag opening from at least one side of the bag opening positioning point to misalign the bag opening;

[0013] Step 3: The bag opening mechanism opens the bag from the designated opening position.

[0014] The bag opening mechanism is located on both sides of the bag opening. The bag opening mechanism can extend and retract to position the middle of the opening on both sides. The bag punching mechanism is located on the side of the bag opening positioning point. By extending and retracting the bag punching mechanism, the bag opening is bent towards the side opposite to the bag punching mechanism. During the bending process, the bag opening mechanism does not move and its position remains unchanged, and the bag opening positioning point is fixed. Due to the positioning of the bag opening mechanism and the bending of the bag punching mechanism, a gap is formed at the bag opening and it is bent. Then the bag opening mechanism opens the bag from both sides of the bag opening, which makes it easy to open the bag opening and ensures the success rate of opening the bag.

[0015] A further technical solution of the present invention is: in step two, the bag-punching mechanism alternately moves from both sides of the bag opening to bend the bag opening and misalign it.

[0016] like Figure 5 As shown, the bag-punching mechanisms are placed on both sides of the soft bag, and the bag opening is positioned between the two bag-punching mechanisms. When the bag-punching mechanisms are activated, the bag opening bends.

[0017] A further technical solution of the present invention is: in step two, the bag-punching mechanism moves from one side of the bag opening to bend the bag opening and misalign it.

[0018] like Figure 6 As shown, the bag-punching mechanism is placed on one side of the soft bag and on the side of the bag opening positioning point. The action of the bag-punching mechanism bends the bag opening, and a misalignment and separation force is generated between the bent side of the bag opening and the bag opening positioning point, creating a gap, which makes it easy to open the bag opening.

[0019] A further technical solution of the present invention is: in step two, the bag-punching mechanism moves from both sides of the bag opening positioning point to bend the bag opening and misalign it.

[0020] like Figure 7 As shown, the bag-punching mechanism is placed on the same side of the bag opening, and the bag opening is positioned between the bag-punching mechanisms. The bag-punching action causes the soft bag to bend.

[0021] A further technical solution of the present invention is: a bag-blocking component is provided on the side of the bag opening, and in step two, the bag-punching mechanism moves from one side of the bag opening and cooperates with the bag-blocking component on the other side of the bag opening to bend the bag opening.

[0022] In order to ensure the state of the soft bag during the conveying to the bag opening station, the bag blocking members are arranged on both sides of the soft bag; when the bag poking mechanism acts from one side of the bag opening, the bag opening is close to the bag blocking member on the other side, so that the bending degree is reduced and the misalignment of the bag opening is ensured to form a gap.

[0023] In the step one, the bag opening mechanism comprises a vacuum chuck, and the vacuum chuck is arranged on both sides of the bag opening for positioning the both sides of the bag opening.

[0024] The vacuum chuck has low cost and good effect.

[0025] In the step three, the bag poking mechanism is avoided during the bag opening action.

[0026] During the opening of the bag opening from the middle part of the bag opening, the bag opening mechanism drives the soft bag to move to both sides, and in this bag opening process, in order to avoid the influence of the bag poking mechanism, the bag poking mechanism is also moved away from the soft bag side synchronously.

[0027] The application further provides a soft bag opening system, which comprises bag opening mechanisms arranged on both sides of the bag opening and bag blocking members, the bag opening mechanisms are used for positioning both sides of the bag opening, and the bag opening system further comprises bag poking mechanisms arranged on the side edges of the bag opening positioning positions for bending and misaligning the bag opening.

[0028] The bag opening mechanisms are arranged on both sides of the bag opening, the bag opening mechanisms are used for positioning both sides of the middle part of the bag opening, the bag poking mechanisms are arranged on the side edges of the bag opening positioning positions, the bag opening is bent to the side opposite to the bag poking mechanism through the bag poking mechanism, and the misalignment of the bag opening is caused by the positioning of the bag opening mechanism and the bending of the bag poking mechanism; the bag opening is bent and has a gap, and then the bag opening mechanism opens the bag opening from both sides of the bag opening, so that the bag opening is easily opened and the success rate of the bag opening is ensured.

[0029] The bag poking mechanism can move along the bag opening direction of the soft bag.

[0030] The bag poking mechanism can move along the bag opening direction of the soft bag, the bag opening can be bent, and the soft bag opening can be avoided.

[0031] The application has the following beneficial effects: in the application, the middle part of the bag opening is first positioned from both sides, and then the side edges of the bag opening positioning positions are bent, and the bag opening positioning positions are not moved during the bending of the bag opening; under the action of the middle part positioning and the side edge bending, the bag opening of the soft bag is forced to bend and deform, so that the misalignment separation force is generated, the gap of the bag opening is generated, and the bag opening is more relaxed due to the bending of the side edges of the bag opening; therefore, the bag opening is in a relaxed state and has a gap, the bag opening is much easier, and the low qualified rate of the bag opening in the prior art is well solved. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is a flow chart of a soft bag opening method provided by the present application;

[0033] Figure 2 is a structural schematic diagram of a soft bag opening system provided by the present application;

[0034] Figure 3 is a top view of a soft bag opening system provided by the present application;

[0035] Figure 4 is a diagram showing the change of a soft bag opening system provided by the present application before and after opening;

[0036] Figure 5 is a diagram showing the change of a corresponding soft bag system of the soft bag opening method of Example 1 provided by the present application;

[0037] Figure 6 is a diagram showing the change of a corresponding soft bag system of the soft bag opening method of Example 2 provided by the present application;

[0038] Figure 7 is a diagram showing the change of a corresponding soft bag system of the soft bag opening method of Example 3 provided by the present application.

[0039] Reference numerals: 1. soft bag, 11. bag opening, 12. bag opening positioning place, 2. bag opening mechanism, 3. bag poking mechanism, 4. bag blocking piece. DETAILED DESCRIPTION

[0040] The present application is described in greater detail by the specific embodiments below, and other advantages and effects of the present application can be easily understood by those skilled in the art from the contents disclosed in the present specification. The present application can also be implemented or applied by different specific embodiments, and various modifications or changes can be made to the details in the present specification based on different viewpoints and applications without departing from the spirit of the present application.

[0041] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to the present specification are only used to cooperate with the contents disclosed in the present specification, to be understood and read by those skilled in the art, and do not have technical significance to limit the conditions under which the present application can be implemented. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle", and "one" in the present specification are only for the convenience of clear description, and are not used to limit the scope of the present application, and the change or adjustment of the relative relationship, without substantially changing the technical content, is also considered as the scope of the present application.

[0042] Embodiment one:

[0043] Figures 1-4 And Figure 5 A soft bag opening method is shown for opening the opening of a soft bag 1, the opening method is as follows:

[0044] Step one, positioning the middle of both sides of the bag opening 11;

[0045] Step two, bending the bag opening 11 at least one side of the bag opening positioning place 12 to misalign the bag opening 11;

[0046] Step three, opening the bag opening 11 from the bag opening positioning place 12.

[0047] In the present application, the bag opening is first positioned from the middle of both sides, then the side of the bag opening positioning place is bent, and the positioning place is fixed during the bending of the bag opening; under the action of the middle positioning and the side bending, the opening of the soft bag is forced to bend and deform, thereby generating a misalignment separation force, allowing the bag opening to have a gap, and because the side of the bag opening is bent, the bag opening is more relaxed, therefore, the bag opening is in a relaxed state and has a gap, making the opening process much easier, and the low opening qualification rate problem in the prior art is well solved.

[0048] The opening of the soft bag to be opened is the bag opening.

[0049] In the present embodiment, the opening method is as follows:

[0050] Step one, the opening mechanism 2 positions the middle of both sides of the bag opening 11;

[0051] Step two, the bag poking mechanism 3 bends the bag opening 11 at least one side of the bag opening positioning place 12 to misalign the bag opening 11;

[0052] Step three, the opening mechanism 2 performs an opening action to open the bag opening 11 from the bag opening positioning place 12.

[0053] In the present embodiment, the opening mechanism is placed on both sides of the bag opening, the opening mechanism can be extended to position the middle of both sides of the opening, the bag poking mechanism is placed on the side of the bag opening positioning place, the bag opening is bent to the opposite side of the bag poking mechanism by the extension of the bag poking mechanism, and the positioning place is fixed during the bending process, because the positioning of the opening mechanism and the bending of the bag poking mechanism form a gap in the bag opening and bend the bag opening, then the opening mechanism opens the bag opening from both sides of the bag opening, which can easily open the bag opening and ensure the success rate of opening.

[0054] As other embodiments, step one positions the middle of both sides of the bag opening by the opening mechanism, step two can bend the soft bag by rotating the carrier for conveying the soft bag, thereby bending the bag opening at least one side of the bag opening positioning place to misalign the bag opening, and finally opening the bag opening from the middle of the bag opening. Compared with the structure of the present embodiment, this way will be more complex.

[0055] In this embodiment, the bag opening mechanism includes a vacuum suction cup. The bag opening mechanism is placed on both sides of the bag opening. When it is necessary to position the two sides of the bag opening, the bag opening mechanisms on both sides are brought close to each other, and the vacuum suction cups abut against the two sides of the soft bag respectively to position the bag opening. This prevents the soft bag from moving during the bending action in step two and ensures that a misalignment and separation force can be generated at the bag opening during the bending action, thereby forming a gap at the bag opening to facilitate bag opening.

[0056] In this embodiment, the bag opening mechanism includes a telescopic drive and a vacuum suction cup located at the output end of the telescopic drive. The vacuum suction cup is used to position the two sides of the bag opening and open the bag body.

[0057] As an example, the bag opening mechanism can use an adhesive method to open the bag.

[0058] In this embodiment, the bag-punching mechanism includes a driving component and a bag-punching component located at the output end of the driving component. The bag-punching mechanism is located on the side of the bag opening positioning point. The driving component drives the bag-punching component to move from one side of the soft bag to the other side, thereby completing the bending of the soft bag opening.

[0059] In this embodiment, the opening action of the bag opening mechanism is that the vacuum suction cup moves the two sides of the soft bag away from each other.

[0060] In this embodiment, in step two, the bag-punching mechanism 3 bends the bag opening 11 from both sides of the bag opening 11, causing the bag opening to be misaligned.

[0061] like Figure 5 As shown, the bag-punching mechanisms are placed on both sides of the soft bag, and the bag opening is positioned between the two bag-punching mechanisms. When the bag-punching mechanisms are activated, the bag opening bends.

[0062] In this embodiment, the action of the bag-punching mechanism refers to the telescopic movement of the bag-punching mechanism, which can push the soft bag to the other side, causing the soft bag to bend.

[0063] In this embodiment, the bag-punching mechanism and the bag-opening mechanism are located on the same horizontal plane, resulting in a better bag-opening effect.

[0064] In this embodiment, a bag-blocking component 4 is provided on the side of the bag opening 11. In step two, the bag-punching mechanism 3 moves from one side of the bag opening 11 and cooperates with the bag-blocking component 4 on the other side of the bag opening 11 to bend the bag opening 11.

[0065] During the process of conveying the soft bag to the bag opening station, in order to ensure the condition of the soft bag, bag-blocking devices are provided on both sides of the soft bag; when the bag-punching mechanism moves from one side of the bag opening, it will cause the bag opening to move closer to the bag-blocking device on the other side, reducing the degree of bending and ensuring that the bag opening is misaligned and separated to form a gap.

[0066] In the embodiment, the bag opening mechanism 2 comprises vacuum suction cups which are arranged on both sides of the bag opening 11 and move oppositely to position both sides of the bag opening 11.

[0067] The vacuum suction cups are low in cost and good in effect.

[0068] In the embodiment, the bag opening mechanism is arranged on both sides of the soft bag symmetrically relative to the soft bag, which further ensures the bag opening effect of the soft bag.

[0069] As another embodiment, the bag opening mechanism is arranged on both sides of the bag opening, and the vacuum suction cups overlap, so that the bag opening can be opened from both sides of the bag opening.

[0070] As another embodiment, the bag opening mechanism opens the bag opening by sticking.

[0071] In the embodiment, the bag opening mechanism 3 moves away during the bag opening action.

[0072] During the opening of the bag opening from the middle part of the bag opening, the bag opening mechanism drives the soft bag to move to both sides, and during the bag opening process, the bag opening mechanism also moves away from the soft bag side synchronously to avoid the influence of the bag opening mechanism.

[0073] Embodiment two:

[0074] Figures 1-4 and Figure 6 A soft bag opening method for opening the bag opening of a soft bag 1 is shown, and the soft bag opening method is as follows:

[0075] Step one, positioning both sides of the middle part of the bag opening 11;

[0076] Step two, bending the bag opening 11 on at least one side of the bag opening positioning part 12 to make the bag opening 11 misaligned;

[0077] Step three, opening the bag opening 11 from the bag opening positioning part 12.

[0078] In the present application, the bag opening is first positioned from the middle part of both sides, and then the side edge of the bag opening positioning part is bent, and the positioning part is not moved during the bending of the bag opening. Under the action of the middle part positioning and the side edge bending, the opening of the soft bag is stressed and deformed to generate a misalignment separation force, so that the bag opening generates a gap. At the same time, due to the bending of the side edge of the bag opening, the bag opening is more relaxed. Therefore, the bag opening is in a relaxed state and has a gap, so that the bag opening becomes much easier, and the problem of low bag opening qualification rate in the prior art is well solved.

[0079] The bag opening of the soft bag is the bag opening.

[0080] In the embodiment, the bag opening method is as follows:

[0081] Step one, the bag opening mechanism 2 positions the middle of the bag opening 11 on both sides;

[0082] Step two, the bag poking mechanism 3 bends the bag opening 11 from at least one side of the bag opening positioning place 12 to make the bag opening 11 misaligned.

[0083] Step three, the bag opening mechanism 2 opens the bag opening 11 from the bag opening positioning place 12.

[0084] In this embodiment, the bag opening mechanism is placed on both sides of the bag opening, and the bag opening mechanism can be extended to position the middle of the opening on both sides. The bag poking mechanism is placed on the side of the bag opening positioning place, and the bag poking mechanism is extended to bend the bag opening to the opposite side of the bag poking mechanism. During the bending process, the positioning place is fixed. Because of the positioning of the bag opening mechanism and the bending of the bag poking mechanism, the bag opening forms a gap and is bent, and then the bag opening mechanism opens the bag opening from both sides. This can easily open the bag opening and ensure the success rate of opening the bag.

[0085] As another embodiment, step one positions the middle of the bag opening on both sides through the bag opening mechanism, step two bends the soft bag through the rotation of the carrier for conveying the soft bag, thereby bending the bag opening on at least one side of the bag opening positioning place to misalign the bag opening, and finally opening the bag opening from the middle of the bag opening. Compared with the structure of this embodiment, this way is more complex.

[0086] In this embodiment, the bag opening mechanism includes a vacuum chuck. When the bag opening mechanism needs to position the bag opening on both sides, the bag opening mechanism on both sides approaches each other, and the vacuum chucks on both sides are in contact with the soft bag on both sides to position the bag opening. This avoids the movement of the soft bag during the bending action in step two, ensures that the misaligned force can be generated in the bag opening during the bending action, thereby forming a gap in the bag opening to facilitate the opening of the bag.

[0087] In this embodiment, the bag opening mechanism includes an extension drive and a vacuum chuck placed on the output end of the extension drive. The vacuum chuck is used to position the bag opening on both sides and open the bag body.

[0088] As an embodiment, the bag opening mechanism can open the bag in a pasting manner.

[0089] In this embodiment, the bag poking mechanism includes a driving member and a bag poking member placed on the output end of the driving member. The bag poking mechanism is placed on the side of the bag opening positioning place. The driving member drives the bag poking member to move from one side of the soft bag to the other side to complete the bending of the bag opening of the soft bag.

[0090] In this embodiment, the bag opening action of the bag opening mechanism is that the vacuum chuck drives the two sides of the soft bag to move away from each other.

[0091] In this embodiment, in step two, the bag poking mechanism 3 bends the bag opening 11 from one side of the bag opening 11 to misalign the bag opening.

[0092] AsFigure 6 As shown, the bag-punching mechanism is placed on one side of the soft bag and on the side of the bag opening positioning point. The action of the bag-punching mechanism bends the bag opening, and a misalignment and separation force is generated between the bent side of the bag opening and the bag opening positioning point, creating a gap, which makes it easy to open the bag opening.

[0093] In this embodiment, the action of the bag-punching mechanism refers to the telescopic movement of the bag-punching mechanism, which can push the soft bag to the other side, causing the soft bag to bend.

[0094] In this embodiment, the bag-punching mechanism and the bag-opening mechanism are located on the same horizontal plane, resulting in a better bag-opening effect.

[0095] In this embodiment, a bag-blocking component 4 is provided on the side of the bag opening 11. In step two, the bag-punching mechanism 3 moves from one side of the bag opening 11 and cooperates with the bag-blocking component 4 on the other side of the bag opening 11 to bend the bag opening 11.

[0096] During the process of conveying the soft bag to the bag opening station, in order to ensure the condition of the soft bag, bag-blocking devices are provided on both sides of the soft bag; when the bag-punching mechanism moves from one side of the bag opening, it will cause the bag opening to move closer to the bag-blocking device on the other side, reducing the degree of bending and ensuring that the bag opening is misaligned and separated to form a gap.

[0097] In this embodiment, in step one, the bag opening mechanism 2 includes a vacuum suction cup, which is placed on both sides of the bag opening 11 and moves relative to each other to position the two sides of the bag opening 11.

[0098] Vacuum suction cups are low in cost and effective.

[0099] In this embodiment, the opening mechanisms are respectively located on both sides of the soft bag and symmetrically arranged relative to the soft bag, further ensuring the opening effect of the soft bag.

[0100] In another embodiment, the bag opening mechanism is placed on both sides of the bag opening, and the vacuum suction cups have overlapping portions, which ensures that the bag opening can be opened from both sides.

[0101] In another embodiment, the bag opening mechanism uses an adhesive method to open the bag opening.

[0102] In this embodiment, during step three, the bag-opening mechanism 3 avoids obstacles.

[0103] During the process of opening the bag from the middle, the opening mechanism drives the soft bag to move to both sides. In order to avoid the influence of the bag-punching mechanism, the bag-punching mechanism also moves to the side away from the soft bag at the same time.

[0104] Example 3:

[0105] Figures 1-4 as well as Figure 7 A method for opening a soft bag is shown, for opening the opening of a soft bag 1, the method being as follows:

[0106] Step one, positioning the middle of the bag opening 11 on both sides;

[0107] Step two, bending the bag opening 11 on at least one side of the bag opening positioning place 12 to make the bag opening 11 misaligned;

[0108] Step three, opening the bag opening 11 from the bag opening positioning place 12.

[0109] In the present application, the bag opening is first positioned from the middle of both sides, and then the side of the bag opening positioning place is bent. The bag opening positioning place is fixed during the bending of the bag opening. Under the action of the middle positioning and the side bending, the opening of the soft bag is forced to bend and deform, thereby generating a misalignment force to make the bag opening have a gap. At the same time, due to the bending of the side of the bag opening, the bag opening is more relaxed. Therefore, the bag opening is in a relaxed state and has a gap, and the opening of the bag becomes much easier, which well solves the problem of low opening qualification rate in the prior art.

[0110] The bag opening to be opened of the soft bag is the bag opening.

[0111] In the present embodiment, the bag opening method is as follows:

[0112] Step one, the bag opening mechanism 2 positions the middle of the bag opening 11 on both sides;

[0113] Step two, the bag poking mechanism 3 bends the bag opening 11 on at least one side of the bag opening positioning place 12 to make the bag opening 11 misaligned;

[0114] Step three, the bag opening mechanism 2 performs an opening action to open the bag opening 11 from the bag opening positioning place 12.

[0115] In the present embodiment, the bag opening mechanism is placed on both sides of the bag opening. The bag opening mechanism can be extended and retracted to position the middle of the opening on both sides. The bag poking mechanism is placed on the side of the bag opening positioning place. The bag opening is bent to the side opposite to the bag poking mechanism through the extension and retraction of the bag poking mechanism. The positioning place is fixed during the bending. The bag opening forms a gap and is bent due to the positioning of the bag opening mechanism and the bending of the bag poking mechanism. Then the bag opening mechanism opens the bag opening from both sides of the bag opening, which can easily open the bag opening and ensure the success rate of the bag opening.

[0116] As other embodiments, step one positions the middle of the bag opening on both sides through the bag opening mechanism. Step two can make the soft bag bend through the rotation of the carrier for conveying the soft bag, so that the bag opening on at least one side of the bag opening positioning place is bent and the bag opening is misaligned. Finally, the bag opening is opened from the middle of the bag opening. Compared with the structure of the present embodiment, this way will be more complex.

[0117] In this embodiment, the bag opening mechanism includes a vacuum suction cup. The bag opening mechanism is placed on both sides of the bag opening. When it is necessary to position the two sides of the bag opening, the bag opening mechanisms on both sides are brought close to each other, and the vacuum suction cups abut against the two sides of the soft bag respectively to position the bag opening. This prevents the soft bag from moving during the bending action in step two and ensures that a misalignment and separation force can be generated at the bag opening during the bending action, thereby forming a gap at the bag opening to facilitate bag opening.

[0118] In this embodiment, the bag opening mechanism includes a telescopic drive and a vacuum suction cup located at the output end of the telescopic drive. The vacuum suction cup is used to position the two sides of the bag opening and open the bag body.

[0119] As an example, the bag opening mechanism can use an adhesive method to open the bag.

[0120] In this embodiment, the bag-punching mechanism includes a driving component and a bag-punching component located at the output end of the driving component. The bag-punching mechanism is located on the side of the bag opening positioning point. The driving component drives the bag-punching component to move from one side of the soft bag to the other side, thereby completing the bending of the soft bag opening.

[0121] In this embodiment, the opening action of the bag opening mechanism is that the vacuum suction cup moves the two sides of the soft bag away from each other.

[0122] In this embodiment, in step two, the bag-punching mechanism 3 moves from both sides of the bag opening positioning point 12 to bend the bag opening 11 and misalign the bag opening.

[0123] like Figure 7 As shown, the bag-punching mechanism is placed on the same side of the bag opening, and the bag opening is positioned between the bag-punching mechanisms. The bag-punching action causes the soft bag to bend.

[0124] In this embodiment, the action of the bag-punching mechanism refers to the telescopic movement of the bag-punching mechanism, which can push the soft bag to the other side, causing the soft bag to bend.

[0125] In this embodiment, the bag-punching mechanism and the bag-opening mechanism are located on the same horizontal plane, resulting in a better bag-opening effect.

[0126] In this embodiment, a bag-blocking component 4 is provided on the side of the bag opening 11. In step two, the bag-punching mechanism 3 moves from one side of the bag opening 11 and cooperates with the bag-blocking component 4 on the other side of the bag opening 11 to bend the bag opening 11.

[0127] During the process of conveying the soft bag to the bag opening station, in order to ensure the condition of the soft bag, bag-blocking devices are provided on both sides of the soft bag; when the bag-punching mechanism moves from one side of the bag opening, it will cause the bag opening to move closer to the bag-blocking device on the other side, reducing the degree of bending and ensuring that the bag opening is misaligned and separated to form a gap.

[0128] In this embodiment, in step one, the bag opening mechanism 2 includes a vacuum suction cup, which is placed on both sides of the bag opening 11 and moves relative to each other to position the two sides of the bag opening 11.

[0129] Vacuum suction cups are low in cost and effective.

[0130] In this embodiment, the opening mechanisms are respectively located on both sides of the soft bag and symmetrically arranged relative to the soft bag, further ensuring the opening effect of the soft bag.

[0131] In another embodiment, the bag opening mechanism is placed on both sides of the bag opening, and the vacuum suction cups have overlapping portions, which ensures that the bag opening can be opened from both sides.

[0132] In another embodiment, the bag opening mechanism uses an adhesive method to open the bag opening.

[0133] In this embodiment, during step three, the bag-opening mechanism 3 avoids obstacles.

[0134] During the process of opening the bag from the middle, the opening mechanism drives the soft bag to move to both sides. In order to avoid the influence of the bag-punching mechanism, the bag-punching mechanism also moves to the side away from the soft bag at the same time.

[0135] Example 4:

[0136] like Figures 2-7 The illustrated soft bag opening system includes an opening mechanism 2 and a bag stopper 4 placed on both sides of the bag opening 11. The opening mechanism 2 can be used for positioning on both sides of the bag opening 11. The opening system also includes a bag punching mechanism 3 placed on the side of the bag opening positioning point 12 for bending and misaligning the bag opening 11.

[0137] In this embodiment, the bag-punching mechanism 3 can move along the opening direction of the soft bag 1.

[0138] In this embodiment, the punching structure can move along the opening direction of the soft bag, which can bend the bag opening while avoiding the opening of the soft bag.

[0139] The working principle of this embodiment is as follows: The bag opening mechanism is placed on both sides of the bag opening. The bag opening mechanism can be used to position the two sides of the middle of the opening. The bag punching mechanism is placed on the side of the bag opening positioning point. The bag opening is bent to the opposite side of the bag punching mechanism by the bag punching mechanism. Due to the positioning of the bag opening mechanism and the bending of the bag punching mechanism, the bag opening is misaligned and a gap is formed. Since the bag opening has a gap and is bent, the bag opening mechanism opens the bag from both sides of the bag opening, which makes it easy to open the bag opening and ensures the success rate of opening the bag.

[0140] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for opening a soft bag, used to open the opening of a soft bag (1), characterized in that, The method for opening the bag is as follows: Step 1: Position the two sides of the middle part of the bag opening (11); Step 2: Bend at least one side of the bag opening (11) at the bag opening positioning point (12) to misalign the bag opening (11); Step 3: Open the bag opening (11) from the bag opening positioning point (12).

2. The method for opening a soft bag according to claim 1, characterized in that, The method for opening the bag is as follows: Step 1: The bag opening mechanism (2) positions the two sides of the middle part of the bag opening (11); Step 2: The bag-punching mechanism (3) bends at least one side of the bag opening (11) at the bag opening positioning point, causing the bag opening (11) to be misaligned; Step 3: The bag opening mechanism (2) performs the bag opening action to open the bag opening (11).

3. The method for opening a soft bag according to claim 2, characterized in that, In step two, the bag-punching mechanism (3) moves alternately from both sides of the bag opening (11) to bend the bag opening (11) and misalign it.

4. The method for opening a soft bag according to claim 2, characterized in that, In step two, the bag-punching mechanism (3) moves from one side of the bag opening (11) to bend the bag opening (11) and misalign the bag opening.

5. A method for opening a soft bag according to claim 2, characterized in that, In step two, the bag-punching mechanism (3) moves from both sides of the bag opening positioning point (12) to bend the bag opening (11) and misalign the bag opening.

6. The method for opening a soft bag according to claim 2, characterized in that, A bag-blocking component (4) is provided on the side of the bag opening (11). In step two, the bag-punching mechanism (3) moves from one side of the bag opening (11) and cooperates with the bag-blocking component (4) on the other side of the bag opening (11) to bend the bag opening (11).

7. The method for opening a soft bag according to claim 2, characterized in that, In step one, the bag opening mechanism (2) includes a vacuum suction cup, which is placed on both sides of the bag opening (11) and moves relative to each other to position the two sides of the bag opening (11).

8. A method for opening a soft bag according to claim 2, characterized in that, In step three, the bag-opening mechanism (3) avoids the opening action.

9. A soft bag opening system, comprising opening mechanisms (2) disposed on both sides of the bag opening (11) and bag-blocking components (4), characterized in that, The bag opening mechanism (2) can be used for positioning on both sides of the bag opening (11). The bag opening system also includes a bag punching mechanism (3) placed on the side of the bag opening positioning point (12) for the bag opening (11) to bend and misalign.

10. A soft bag opening system according to claim 9, characterized in that, The bag-punching mechanism (3) can move along the opening direction of the soft bag (1).

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