Packaging bag clamping device

Abstract

The utility model discloses a packaging bag clamping device which is characterized in that a first clamping piece and a second clamping piece are oppositely arranged, and the output end of a first power source is in transmission connection with the first clamping piece and / or the second clamping piece through a first transmission piece; the shaping mechanism is arranged on one side of the clamping mechanism, and the bag containing cavity is communicated with the vacuum mechanism through an air path. The output end of the second power source is in transmission connection with the clamping mechanism through a second transmission piece, and the second power source is used for driving the clamping mechanism to move in the direction close to or away from the shaping mechanism so that the packaging bag clamped by the clamping mechanism can be placed in the shaping mechanism or moved out of the shaping mechanism. The first clamping piece and the second clamping piece are located above the shaping mechanism. Through the arrangement of a clamping mechanism and a second power source, the packaging bag is moved, the lower portion of the packaging bag is placed in a bag containing cavity, and a bag opening of the packaging bag is placed outside a shaping mechanism; the vacuum mechanism extracts gas in the bag containing cavity through the extraction opening, so that the lower portion of the packaging bag is evenly expanded, and shaping operation of the packaging bag is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to clamping device field, especially a kind of packing bag clamping device. BACKGROUND

[0002] Many products need to be packaged in packing bags. For example, tea leaves. The current tea packaging bag not only requires sealing the tea leaves in the packaging bag, but also requires improving the packaging efficiency and the appearance of the packaging bag.

[0003] The previous packaging method is mostly packaged manually. In recent years, there have been many packaging machines for tea packaging. These machines mainly use a poking rod to shape the packaging bag. Specifically, the poking rod is inserted into the packaging bag to be sealed from the opening, and then the bottom of the packaging bag to be sealed is pried open to form a regular square structure. However, this method can only shape the bottom of the packaging bag to be sealed, and the shaping effect on the top of the packaging bag is poor, and the packaging efficiency is not high. SUMMARY

[0004] In view of the above problems, the present application provides a packing bag clamping device to efficiently package regular-shaped packaging products.

[0005] To achieve the above-mentioned purpose, the present application provides a packing bag clamping device, which comprises:

[0006] A clamping mechanism, which comprises a first clamping member, a second clamping member and a first power source. The first clamping member and the second clamping member are oppositely arranged. The output end of the first power source is connected to the first clamping member and / or the second clamping member through a first transmission member. The first power source is used to drive the first clamping member and the second clamping member to move closer to or farther away from each other.

[0007] A shaping mechanism, which is arranged on one side of the clamping mechanism. The shaping mechanism comprises a bag placing cavity and a closed structure. The bag placing cavity is in communication with the air path of the vacuum mechanism. The closed structure is used to form a closed space in communication with the air path of the vacuum mechanism after the packaging bag is placed in the bag placing cavity.

[0008] A second power source, the output end of which is connected to the clamping mechanism through a second transmission member. The second power source is used to drive the clamping mechanism to move closer to or farther away from the shaping mechanism, so that the packaging bag clamped by the clamping mechanism is placed in or removed from the shaping mechanism. The first clamping member and the second clamping member are above the shaping mechanism.

[0009] In some embodiments, the first clamping member is provided with a first bag placing unit on the side wall thereof, and the second clamping member is provided with a second bag placing unit on the side wall thereof, and the first and second bag placing units are used for adsorbing the packaging bag.

[0010] In some embodiments, the first and second bag placing units are suction cups.

[0011] In some embodiments, the packaging bag positioning mechanism is further provided on the first clamping member and / or the second clamping member, and when the clamping mechanism clamps the packaging bag, the preset position of the packaging bag is aligned with the positioning mechanism.

[0012] In some embodiments, the first transmission member comprises a first rack and a first gear, the first rack is engaged with the first gear, the first gear is arranged on the output end of the first power source, and the first rack is connected with the first clamping member or the second clamping member.

[0013] In some embodiments, the first transmission member comprises a second rack, a third rack and a second gear, the second rack is connected with the first clamping member, the third rack is connected with the second clamping member, and the second gear is engaged with the second rack and the third rack on both sides thereof; the second gear is arranged on the output end of the first power source.

[0014] In some embodiments, the first clamping member and / or the second clamping member is connected with the first sliding rail, and the first power source drives the first clamping member and / or the second clamping member to slide on the first sliding rail.

[0015] In some embodiments, the clamping mechanism is connected with the housing of the packaging bag clamping device through the second sliding rail, and the second power source drives the clamping mechanism to slide on the second sliding rail.

[0016] In some embodiments, the shaping mechanism comprises a first housing and a second housing, the first housing and the second housing are arranged to reciprocate relative to each other in the horizontal direction, when the first housing and the second housing are folded in the horizontal direction, the packaging bag is located between the first housing and the second housing, the first housing and the second housing are airtight, and the first housing and the second housing enclose the bag placing cavity; the bag placing cavity is further provided with an air outlet, and the air outlet penetrates the side wall of the bag placing cavity.

[0017] In some embodiments, the first housing and the second housing are provided with a third bag placing unit along the side wall thereof.

[0018] Differing from the prior art, in the technical scheme, the packaging bag is moved by the clamping mechanism and the second power source, so that the lower part of the packaging bag is placed in the bag placing cavity and the bag opening of the packaging bag is placed outside the shaping mechanism; the vacuum mechanism extracts the gas in the bag placing cavity through the air extraction opening on the shaping mechanism, so that the lower part of the packaging bag is uniformly expanded, thereby realizing the shaping operation of the packaging bag.

[0019] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, which can be implemented according to the content of the specification, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0020] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not meant to limit the present application. Moreover, the same reference numerals in the various drawings indicate the same or similar elements. In the drawings:

[0021] Figure 1 Structure diagram of the packaging bag clamping device described in the specific embodiment;

[0022] Figure 2 Structure diagram of the clamping mechanism and the second power source described in the specific embodiment;

[0023] Figure 3 Exploded view of the packaging bag clamping device described in the specific embodiment;

[0024] Figure 4 Structure diagram of the clamping mechanism described in the specific embodiment;

[0025] Figure 5 Structure diagram of the second transmission member and the second sliding rail described in the specific embodiment;

[0026] Figure 6 Structure diagram of the packaging bag described in the specific embodiment;

[0027] Figure 7 Structure diagram of the bottom of the packaging bag described in the specific embodiment;

[0028] Figure 8 Flowchart when the sheet-shaped packaging bag is moved into the shaping mechanism in the specific embodiment;

[0029] Figure 9 Flowchart when the bag placing cavity is vacuumed in the specific embodiment;

[0030] Figure 10 Flowchart when the first clamping member and the second clamping member open the bag opening in the specific embodiment;

[0031] Figure 11 Flow chart for opening the bag mouth before shaping the embodiment;

[0032] Figure 12 Flow chart for vacuumizing the bag cavity with the packaging bag containing material for the embodiment;

[0033] Figure 13 Flow chart for opening the bag mouth again with the packaging bag containing material for the embodiment.

[0034] Explanation of reference signs:

[0035] 10, clamping mechanism; 20, shaping mechanism; 30, second power source; 40, first transmission member; 50, second transmission member; 60, first slide rail; 70, second slide rail; 80, packaging bag; 90, material;

[0036] 11, first clamping member; 12, second clamping member; 13, first power source;

[0037] 21, first housing body; 22, second housing body; 23, bag cavity; 24, air suction port;

[0038] 41, first rack; 42, first gear;

[0039] 51, fourth rack; 52, third gear;

[0040] 81, bag mouth;

[0041] 111, first bag opening unit; 121, second bag opening unit. DETAILED DESCRIPTION

[0042] The embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0044] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise explicitly specified and limited.

[0045] Reference herein to "embodiments" means that the particular features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily a separate or alternative embodiment to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0046] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after it.

[0047] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0048] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0049] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing", and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0050] First of all, please refer to Figure 6 ; in Figure 6 , the left side of the bag 80 is the shape of the bag 80 when it has not been opened, at which time the bag 80 is in a sheet shape; in Figure 6 , the middle bag 80 is the shape of the bag 80 when it is opened away from the bag opening 81 side; in Figure 6 , the right side of the bag 80 is the bag 80 when it is opened. Figure 7 The bottom of the bag 80 when it is opened is concave.

[0051] In the present application, the bag 80 is in a sheet shape when it has not been opened, and at this time the bag 80 is difficult to be opened, specifically, when opening the bag, the bag opening rod needs to be inserted into the bag body to achieve bag opening; at this time, a longer bag opening rod needs to be inserted from the bag opening 81 to the bottom of the bag. At the same time, due to the concave shape of the bag bottom, the end of the bag opening rod close to the bottom cannot effectively open the bag bottom, and is easy to cause damage to the bag bottom.

[0052] Further, in the existing embodiment, a blowing method is also used to open the bag, specifically, a blowing port is placed at the bag opening 81 (the upper part of the bag 80 or the area close to the bag opening 81), and the inside of the bag is blown to open the bag body; however, in actual operation, since only the blowing port is provided at the bag opening 81, the part of the bag body cannot be completely opened, thereby causing the opened bag body to be deformed.

[0053] Please refer to Figures 1 to 13 , the present embodiment discloses a bag 80 clamping device, comprising:

[0054] The clamping mechanism 10 comprises a first clamping piece 11, a second clamping piece 12 and a first power source 13, and the first clamping piece 11 and the second clamping piece 12 are oppositely arranged, the output end of the first power source 13 is drivingly connected with the first clamping piece 11 and / or the second clamping piece 12 through a first transmission member 40, and the first power source 13 is used to drive the first clamping piece 11 and the second clamping piece 12 to move relatively close or relatively far away;

[0055] The shaping mechanism 20 is placed on one side of the clamping mechanism 10, and the shaping mechanism 20 comprises a bag placing cavity 23 and a closed structure, the bag placing cavity 23 is in communication with the vacuum mechanism air path, and the closed structure is used to form a closed space in communication with the vacuum mechanism air path after the bag 80 is placed in the bag placing cavity 23;

[0056] A second power source 30, an output end of the second power source 30 is in transmission connection with the clamping mechanism 10 through a second transmission member 50, and the second power source 30 is used to drive the clamping mechanism 10 to move towards or away from the shaping mechanism 20 so that the packaging bag 80 clamped by the clamping mechanism 10 is placed in or moved out of the shaping mechanism 20, and the first clamping member 11 and the second clamping member 12 are above the shaping mechanism 20.

[0057] The clamping mechanism 10 is used to clamp the packaging bag 80 so that the packaging bag 80 is moved from a clamping position to a shaping position; that is, the packaging bag 80 is moved onto the clamping mechanism 10 through a manual or automatic process, and the clamping mechanism 10 clamps the packaging bag 80 and moves it into the shaping mechanism 20.

[0058] The first clamping member 11 and the second clamping member 12 are in the shape of a strip, and the first clamping member 11 and the second clamping member 12 are arranged in parallel and on the same plane. When the packaging bag 80 is placed between the first clamping member 11 and the second clamping member 12, the first clamping member 11 and the second clamping member 12 move towards each other until the packaging bag 80 is clamped, and at this time the packaging bag 80 will not fall. The first power source 13 is in transmission connection with the first clamping member 11 and / or the second clamping member 12, so as to drive the first clamping member 11 and the second clamping member 12 to move towards or away from each other. Taking the movement towards each other as an example, the movement away from each other is the same.

[0059] The first power source 13 has the following three situations when driving the first clamping member 11 and the second clamping member 12 to move towards each other: one is to drive the first clamping member 11 to move towards the second clamping member 12; the second is to drive the second clamping member 12 to move towards the first clamping member 11; and the third is to drive the first clamping member 11 and the second clamping member 12 to move simultaneously, that is, to drive the first clamping member 11 to move towards the second clamping member 12 while driving the second clamping member 12 to move towards the first clamping member 11. In this application, it is preferred that the first power source 13 drives the first clamping member 11 to move towards or away from the second clamping member 12.

[0060] The first transmission member 40 is connected with the first power source 13 and the first clamping member 11, and / or the first transmission member 40 is connected with the first power source 13 and the second clamping member 12.

[0061] The shaping mechanism 20 is used to open the packaging bag 80 away from one side of the bag opening 81 (the lower part of the packaging bag 80), and when the packaging bag 80 is placed in the shaping mechanism 20, the shaping mechanism 20 performs the bag opening operation on the packaging bag 80 to complete the bag opening operation of the lower part of the packaging bag 80. Further, when the packaging bag 80 has not been placed in the shaping mechanism 20, the closing structure is in an open state, and the packaging bag 80 can be moved into or out of the shaping mechanism 20; when the closing structure closes the cavity, the vacuum mechanism extracts the gas in the bag placement cavity 23 to make the lower part of the packaging bag 80 uniformly expand. The bag placement cavity 23 is a cavity in the shaping mechanism 20 for accommodating the packaging bag 80.

[0062] The second power source 30 is in driving connection with the clamping mechanism 10 through the second transmission member 50, that is, the second power source 30 drives the second transmission member 50 to move, and in turn drives the clamping mechanism 10 to move; specifically, when the clamping mechanism 10 clamps the packaging bag 80, the second power source 30 will drive the clamping mechanism 10 to move through the second transmission member 50, so that the packaging bag 80 is placed in the shaping mechanism 20.

[0063] The first power source 13 and the second power source 30 can be a pneumatic cylinder, a hydraulic cylinder, an electric motor, etc.; of course, in some embodiments, the second power source 30 can also be a mechanical hand.

[0064] The relative close movement and the relative close state mean that the gap between the two objects becomes smaller and smaller until the two objects touch each other or touch the object (such as the packaging bag 80) between the two objects; similarly, the relative far movement and the separation state mean that the gap between the two objects becomes larger and larger.

[0065] In actual operation, the sheet-shaped packaging bag 80 is moved between the first clamping member 11 and the second clamping member 12 by manual or automatic process, and then the first power source 13 drives the first clamping member 11 and / or the second clamping member 12 to move close to each other through the first transmission member 40. The second power source 30 drives the clamping mechanism 10 to move to the shaping mechanism 20 through the second transmission member 50, so that the lower part of the sheet-shaped packaging bag 80 is placed in the shaping mechanism 20, and the bag opening 81 of the packaging bag 80 is placed outside the shaping mechanism 20; and then the shaping mechanism 20 shapes the lower part of the sheet-shaped packaging bag 80.

[0066] When the lower part of the packaging bag 80 is placed in the shaping mechanism 20, the lower part of the packaging bag 80 is placed in the bag placing cavity 23 in the shaping mechanism 20. Then the vacuum mechanism performs the vacuumizing operation on the bag placing cavity 23 to extract the gas in the bag placing cavity 23. When the gas in the bag placing cavity 23 is extracted, there are two cases: one is that the sealing mechanism is completely closed to form a closed space, i.e. the bag placing cavity 23 is a completely closed cavity. At this time, a small amount of gas remains in the packaging bag 80. When the air pressure in the bag placing cavity 23 becomes low, the air pressure in the packaging bag 80 remains unchanged, and the part of the packaging bag 80 located in the bag placing cavity 23 will expand and become larger until it reaches the preset shape. The second is that the sealing mechanism is not completely sealed, i.e. when the gas is extracted, the external gas can enter the bag placing cavity 23, but the rate of vacuumizing the bag placing cavity 23 is much greater than the rate of external gas entering. At this time, the air pressure in the bag placing cavity 23 will still become low, the air pressure in the packaging bag 80 remains unchanged, and the gas can enter the packaging bag 80 from the bag opening 81, and the part of the packaging bag 80 located in the bag placing cavity 23 will expand and become larger.

[0067] The driving method of the packaging clamping device includes the following steps: driving the first power source 13 of the clamping mechanism 10 so that the first clamping part 11 and the second clamping part 12 of the clamping mechanism 10 clamp the bag opening 81 of the packaging bag 80, and driving the second power source 30 to move the packaging bag 80 into the shaping mechanism 20 by the clamping mechanism 10;

[0068] The sealing structure of the shaping mechanism 20 is driven to be closed to form a closed bag placing cavity 23, and the side of the packaging bag 80 away from the bag opening 81 is placed in the bag placing cavity 23, and the bag opening 81 of the packaging bag 80, the first clamping part 11 and the second clamping part 12 are placed outside the bag placing cavity 23;

[0069] The vacuum mechanism communicating with the bag placing cavity 23 is driven to extract the gas in the bag placing cavity 23;

[0070] The sealing structure of the shaping mechanism 20 is driven to be opened.

[0071] Specifically, the packaging bag 80 is moved to between the first clamping part 11 and the second clamping part 12 by artificial or other equipment, and then the first clamping part 11 and the second clamping part 12 move close to each other to clamp the packaging bag 80, and the first clamping part 11 and the second clamping part 12 clamp the bag opening 81 (the upper part of the packaging bag 80 or the area close to the bag opening 81), and then the packaging bag 80 is moved to between the first warehouse body 21 and the second warehouse body 22 under the driving of the second power source 30.

[0072] The first cartridge body 21 and the second cartridge body 22 move towards each other until the first cartridge body 21 and the second cartridge body 22 clamp the packaging bag 80, at which time the middle part of the shaping mechanism 20 is hollow, and the hollow area is the bag placing cavity 23; the bag opening 81 of the packaging bag 80 is placed outside the shaping mechanism 20, and the lower part of the packaging bag 80 is placed in the bag placing cavity 23.

[0073] Then the bag placing cavity 23 performs a vacuum operation, and the air pressure in the bag placing cavity 23 is reduced, at which time the air pressure of the lower part of the packaging bag 80 is greater than the air pressure in the shaping mechanism 20, causing the lower part of the packaging bag 80 to uniformly expand to achieve the shaping purpose.

[0074] In the above technical solution, through the arrangement of the clamping mechanism 10 and the second power source 30, the packaging bag 80 is moved so that the lower part of the packaging bag 80 is placed in the bag placing cavity 23, and the bag opening 81 of the packaging bag 80 is placed outside the shaping mechanism 20; the vacuum mechanism extracts the gas in the bag placing cavity 23 through the gas extraction port 24 on the shaping mechanism 20, causing the lower part of the packaging bag 80 to uniformly expand, thereby achieving the shaping operation of the packaging bag 80.

[0075] According to some embodiments of the present application, with reference to Figures 8 to 13 , the first clamping piece 11 is provided with a first bag opening unit 111 on the side wall thereof, and the second clamping piece 12 is provided with a second bag opening unit 121 on the side wall thereof, and the first bag opening unit 111 and the second bag opening unit 121 are both used for adsorbing the packaging bag 80.

[0076] The first bag opening unit 111 and the second bag opening unit 121 are the same in structure, and both are used for providing negative pressure adsorption of the bag opening 81. Hereinafter, the first bag opening unit 111 will be taken as an example for description, and the second bag opening unit 121 will not be described again.

[0077] The first bag opening unit 111 is a suction cup, has an adhesive protrusion, or has a negative pressure hole. Preferably, the first bag opening unit 111 is a suction cup or a negative pressure hole, and the first bag opening unit 111 is connected with the vacuum mechanism. When it is needed to open the bag opening 81 by the first bag opening unit 111, the vacuum mechanism is started to generate negative pressure in the middle part of the suction cup or the negative pressure hole, so that the bag opening 81 (the upper part of the packaging bag 80 or the area close to the bag opening 81) is adsorbed on the first bag opening unit 111.

[0078] Further, the bag opening 81 of the packaging bag 80 is connected in a two-piece structure, please refer to Figure 6 the packaging bag 80 on the right side in the figure.

[0079] Please refer to Figures 8 to 10When the closed structure of the shaping mechanism 20 is opened, further comprising the steps of: driving the first bag opening unit 111 of the first clamping member 11 and the second bag opening unit 121 of the second clamping member 12 to adsorb the bag opening 81, and driving the first power source 13 to make the first clamping member 11 and the second clamping member 12 move relatively apart in the horizontal direction;

[0080] Driving the material 90 conveying mechanism to load the material 90 into the packaging bag 80 from the bag opening 81 of the packaging bag 80. After loading the material 90 into the packaging bag 80 from the bag opening 81 of the packaging bag 80, further comprising the steps of: driving the first power source 13 to drive the first clamping member 11 and the second clamping member 12 to move relatively close to clamp the packaging bag 80

[0081] When the lower part of the packaging bag 80 is inflated, the first bin body 21 and the second bin body 22 move relatively apart; the first bag opening unit 111 on the first clamping member 11 and the second bag opening unit 121 on the second clamping member 12 are activated, the first bag opening unit 111 and the second bag opening unit 121 respectively adsorb the two sides of the packaging bag 80, and then the first power source 13 drives the first clamping member 11 and the second clamping member 12 to separate, so that the bag opening 81 of the packaging bag 80 is opened.

[0082] After the bag opening 81 of the packaging bag 80 is opened, the material 90 is loaded into the packaging bag 80 from the bag opening 81 of the packaging bag 80; at this time, the loaded material 90 directly falls into the bottom of the shaped packaging bag 80.

[0083] Of course, in another embodiment, referring to Figures 11 to 13 , after the first clamping member 11 and the second clamping member 12 clamp the bag opening 81 of the packaging bag 80, further comprising the steps of:

[0084] Driving the first bag opening unit 111 of the first clamping member 11 and the second bag opening unit 121 of the second clamping member 12 to adsorb the bag opening 81, and the first clamping member 11 and the second clamping member 12 move relatively apart in the horizontal direction;

[0085] Driving the material 90 conveying mechanism to load the material 90 into the packaging bag 80 from the bag opening 81 of the packaging bag 80;

[0086] Then, driving the second power source 30 to drive the clamping mechanism 10 to move the packaging bag 80 into the shaping mechanism 20. Further, when the first clamping member 11 and the second clamping member 12 move the packaging bag 80 into the bag placing cavity 23, the material 90 is placed inside the bag placing cavity 23. After loading the material 90 into the packaging bag 80 from the bag opening 81 of the packaging bag 80, further comprising the steps of: driving the first power source 13 to drive the first clamping member 11 and the second clamping member 12 to move relatively close to clamp the packaging bag 80

[0087] When the packaging bag 80 is clamped, the first bag unit 111 on the first clamping member 11 and the second bag unit 121 on the second clamping member 12 are activated, the first bag unit 111 and the second bag unit 121 respectively adsorb two sides of the packaging bag 80, and then the first power source 13 drives the first clamping member 11 and the second clamping member 12 to separate, so that the bag opening 81 of the packaging bag 80 is opened; at this time, the bottom of the packaging bag 80 is still in an unopened state.

[0088] After the bag opening 81 of the packaging bag 80 is opened, the material 90 is loaded into the packaging bag 80 from the bag opening 81 of the packaging bag 80; at this time, the loaded material 90 is located above the area of the packaging bag 80 which has not been opened.

[0089] After the material 90 is loaded into the packaging bag 80, the first clamping member 11 and the second clamping member 12 move close to each other to clamp the packaging bag 80 again; and then the clamping mechanism 10 drives the packaging bag 80 to move, so that the side of the packaging bag 80 away from the bag opening 81 is located between the first bin body 21 and the second bin body 22.

[0090] Further, when the packaging bag 80 is located between the first bin body 21 and the second bin body 22, the material 90 is located below the upper edge of the first bin body 21 and the upper edge of the second bin body 22; when the opposite bag cavity 23 is pumped, the area of the packaging bag 80 which has not been opened expands uniformly, and the material 90 falls to the bottom of the packaging bag 80.

[0091] In actual operation, when opening operation is needed, the first bag unit 111 and the second bag unit 121 are activated, and the first bag unit 111 adsorbs the packaging bag 80 close to the first clamping member 11, and the second bag unit 121 adsorbs the packaging bag 80 close to the second clamping member 12; and then the first clamping member 11 and the second clamping member 12 move away from each other to open the bag opening 81.

[0092] According to some embodiments of the present application, further comprising: a positioning mechanism; the positioning mechanism is located on the first clamping member 11 and / or the second clamping member 12, when the clamping mechanism 10 clamps the packaging bag 80, the preset position of the packaging bag 80 is aligned with the positioning mechanism. That is, before the first clamping member 11 and the second clamping member 12 clamp the packaging bag 80, it further includes the step of aligning the preset position of the packaging bag 80 with the positioning mechanism.

[0093] In the present embodiment, the positioning mechanism can be a sensor, a positioning block or the like, when the positioning mechanism is a sensor, the first clamping member 11 and the second clamping member 12 move close to each other until the packaging bag 80 is clamped when the packaging bag 80 moves to the sensing position; or when the packaging bag 80 touches the positioning block on the first clamping member 11 and / or the second clamping member 12, the first clamping member 11 and the second clamping member 12 move close to each other until the packaging bag 80 is clamped.

[0094] Further, the preset position of the packaging bag 80 can be a specific position on the packaging bag 80, preferably an edge of the packaging bag 80.

[0095] Of course, in other embodiments, since the starting point of the clamping mechanism 10 is fixed, when the clamping mechanism 10 returns to the starting point, the other automated equipment can move to the preset position according to the preset program, and then the clamping mechanism 10 clamps the packaging bag 80; similarly, the automated equipment can move the packaging bag 80 to the preset position, and then the clamping mechanism 10 moves to the preset position and clamps the packaging bag 80.

[0096] According to some embodiments of the present application, referring to Figure 1 , Figure 3 and Figure 4 , the first transmission member 40 comprises a first rack 41 and a first gear 42, the first rack 41 is engaged with the first gear 42, the first gear 42 is arranged on the output end of the first power source 13, and the first rack 41 is connected with the first clamping member 11 or the second clamping member 12.

[0097] When the first rack 41 is connected with the first clamping member 11, the second clamping member 12 is fixedly arranged; when the packaging bag 80 is arranged between the first clamping member 11 and the second clamping member 12, the first power source 13 drives the first gear 42 to rotate, and then the first gear 42 drives the first rack 41 to move, and the first rack 41 drives the first clamping member 11 to move towards or away from the second clamping member 12.

[0098] When the first rack 41 is connected with the second clamping member 12, the same principle applies, which will not be described here.

[0099] Of course, in other embodiments, the first transmission member 40 comprises a second rack, a third rack and a second gear, the second rack is connected with the first clamping member 11, the third rack is connected with the second clamping member 12, and the second gear is engaged with the second rack and the third rack on both sides; the second gear is arranged on the output end of the first power source 13.

[0100] In this embodiment, the second rack and the third rack are arranged on both sides of the second gear, and the second rack and the third rack are engaged with the second gear; when the first power source 13 drives the second gear to rotate, the second gear drives the second rack and the third rack to move synchronously (i.e. the second rack and the third rack move towards or away from each other at the same time). Further, the first clamping member 11 and the second clamping member 12 are driven to move synchronously.

[0101] According to some embodiments of the present application, referring to Figure 1 , Figure 2 and Figure 5The second transmission member 50 comprises a fourth rack 51 and a third gear 52, the fourth rack 51 is engaged with the third gear 52, the third gear 52 is disposed on the output end of the second power source 30, and the fourth rack 51 is connected with the clamping mechanism 10.

[0102] The fourth rack 51 is fixedly connected with the clamping mechanism 10. When the packaging bag 80 is clamped by the first clamping member 11 and the second clamping member 12, the second power source 30 drives the third gear 52 to rotate, and then the third gear 52 drives the fourth rack 51 to move, and the fourth rack 51 drives the clamping mechanism 10 to move towards or away from the shaping mechanism 20.

[0103] According to some embodiments of the present application, referring to Figures 2 to 4 Further comprising a first sliding rail 60, the first clamping member 11 and / or the second clamping member 12 are connected with the first sliding rail 60, and the first power source 13 drives the first clamping member 11 and / or the second clamping member 12 to slide on the first sliding rail 60.

[0104] The first sliding rail 60 comprises a first sliding groove and a first sliding rail 60; a first sliding block is fixedly connected with the housing of the clamping mechanism 10, the first sliding groove is fixedly connected with the first clamping member 11, the first sliding groove and the first sliding rail 60 are slidingly connected, and the first sliding rail 60 is arranged to enable the first clamping member 11 to be stably driven by the first power source 13.

[0105] According to some embodiments of the present application, referring to Figure 2 and Figure 3 Further comprising a second sliding rail 70, the clamping mechanism 10 is connected with the housing of the packaging bag 80 clamping device through the second sliding rail 70, and the second power source 30 drives the clamping mechanism 10 to slide on the second sliding rail 70.

[0106] The second sliding rail 70 comprises a second sliding groove and a second sliding rail 70; a second sliding block is fixedly connected with the housing of the packaging bag 80 clamping device, the second sliding groove is fixedly connected with the housing of the clamping mechanism 10, the second sliding groove and the second sliding rail 70 are slidingly connected, and the second sliding rail 70 is arranged to enable the clamping mechanism 10 to be stably driven by the second power source 30.

[0107] According to some embodiments of the present application, referring to Figure 1The shaping mechanism 20 comprises a first bin body 21 and a second bin body 22, the first bin body 21 and the second bin body 22 are arranged to reciprocate relative to each other in a horizontal direction, the first bin body 21 and the second bin body 22 are closed in the horizontal direction, the packaging bag 80 is located between the first bin body 21 and the second bin body 22, the first bin body 21 and the second bin body 22 are air-tightly matched, and the first bin body 21 and the second bin body 22 enclose a bag placing cavity 23.

[0108] According to some embodiments of the present application, the air outlet 24 is connected with a vacuum mechanism air path, and the air outlet 24 is used to extract the gas in the bag placing cavity 23.

[0109] When the first bin body 21 and the second bin body 22 enclose the bag placing cavity 23, the shaping mechanism 20 is a hollow structure, and the bag placing cavity 23 is used to accommodate the lower part of the packaging bag 80; in the present application, the shaping mechanism 20 comprises the first bin body 21 and the second bin body 22, and the first bin body 21 and the second bin body 22 can be closed to form the shaping mechanism 20 in the following three modes: first, the first bin body 21 is located on the left side of the second bin body 22, the first bin body 21 is a plate arranged in the height direction, the second bin body 22 is a hollow structure with an opening on the left side, and when the second bin body 22 is closed with the first bin body 21, the opening of the second bin body 22 is in contact with the first bin body 21; second, the first bin body 21 is located on the left side of the second bin body 22, the second bin body 22 is a plate arranged in the height direction, the first bin body 21 is a hollow structure with an opening on the right side, and when the second bin body 22 is closed with the first bin body 21, the opening of the first bin body 21 is in contact with the first bin body 21; third, the first bin body 21 is located on the left side of the second bin body 22, the first bin body 21 is a hollow structure with an opening on the right side, the second bin body 22 is a hollow structure with an opening on the left side, and when the second bin body 22 is closed with the first bin body 21, the opening of the first bin body 21 is in contact with the opening of the second bin body 22, and the two openings are air-tightly matched.

[0110] Preferably, the first bin body 21 and the second bin body 22 are in the third mode, and the first bin body 21 and the second bin body 22 are symmetrically arranged.

[0111] The air outlet 24 is located on the shaping mechanism 20, the air outlet 24 is in communication with the vacuum mechanism, and is used to extract the gas in the bag placing cavity 23 to meet the shaping requirement. Specifically, when the first bin body 21 and the second bin body 22 are closed to form the shaping mechanism 20, the vacuum mechanism can perform vacuumizing operation, and the gas in the bag placing cavity 23 is extracted through the air outlet 24. Specifically, when the air outlet 24 extracts the gas in the bag placing cavity 23, the air pressure in the shaping mechanism 20 is reduced, at this time, the air pressure of the lower part of the packaging bag 80 is greater than the air pressure in the shaping mechanism 20, so that the lower part of the packaging bag 80 is inflated.

[0112] The closing structure of the driving shaping mechanism 20 includes the steps of driving the first bin body 21 and the second bin body 22 to move relatively close in the horizontal direction, and the first bin body 21 and the second bin body 22 are air-tightly matched after being close, and the first bin body 21 and the second bin body 22 enclose the bag placing cavity 23.

[0113] The closing structure of the driving shaping mechanism 20 includes the steps of driving the first bin body 21 and the second bin body 22 to move relatively close in the horizontal direction, and the first bin body 21 and the second bin body 22 are air-tightly matched after being close, and the first bin body 21 and the second bin body 22 enclose the bag placing cavity 23.

[0114] In some embodiments, the shaping mechanism 20 further includes bin body driving mechanisms, two bin body driving mechanisms, the first bin body 21 and the second bin body 22 are respectively connected with one bin body driving mechanism, and the output ends of the two bin body driving mechanisms are respectively connected with the first bin body 21 and the second bin body 22; the bin body driving mechanism can be a hydraulic push rod, a telescopic rod, or other mechanisms that can drive the first bin body 21 and the second bin body 22 to move.

[0115] According to some embodiments of the present application, a third bag opening unit is arranged on the upper edge of the bin body. The third bag opening unit is a suction disc, has an adhesive protrusion, or has a negative pressure hole. Preferably, the third bag opening unit is a suction disc or a negative pressure hole, and the third bag opening unit is connected with a vacuum mechanism. When the third bag opening unit needs to open the bag opening 81, the vacuum mechanism is started to generate negative pressure in the middle of the negative pressure hole or the suction disc, so that the bag opening 81 (the upper part of the packaging bag 80 or the area close to the bag opening 81) is adsorbed on the third bag opening unit.

[0116] The third bag opening unit is a plurality of third bag opening units, and the plurality of third bag opening units are respectively arranged on the upper edges of the first bin body 21 and the second bin body 22. Specifically, the third bag opening unit is located on one side of the upper edge of the first bin body 21 close to the second bin body 22, and the third bag opening unit is located on one side of the upper edge of the second bin body 22 close to the first bin body 21.

[0117] In actual use, when the lower part of the packaging bag 80 is inflated, the first bin body 21 and the second bin body 22 move away from each other. At this time, the third bag opening unit is started, the upper edges of the first bin body 21 and the second bin body 22 adsorb the packaging bag 80 clamped by the first bin body 21 and the second bin body 22 in the area, to expand the area clamped by the first bin body 21 and the second bin body 22, and to assist the first clamping piece 11 and the second clamping piece 12 to expand the packaging bag 80.

[0118] According to some embodiments of the present application, the driving of the vacuum mechanism communicated with the bag placing cavity 23 to extract the gas in the bag placing cavity 23 includes the steps of:

[0119] The vacuum mechanism communicated with the bag placing cavity 23 is intermittently driven to extract the gas in the bag placing cavity 23, so that the material 90 falls to the bottom of the packaging bag 80.

[0120] In the present embodiment, when the lower part of the packaging bag 80 is placed in the bag placing cavity 23 in a closed state, in order to make the material 90 to be placed at the bottom of the packaging bag 80, or to make the material 90 more compact, the gas in the bag placing cavity 23 can be intermittently extracted, and in the process of continuous shaking, the material 90 can be moved to the bottom of the packaging bag 80. Intermittent refers to the process of stopping the extraction of gas after extracting the gas in the bag placing cavity 23 for a period of time, and then extracting the gas again for a period of time and stopping the extraction again. In the process of starting and stopping multiple times, the packaging bag 80 is forced to shake, and thus the material 90 falls.

[0121] According to some embodiments of the present application, the method further comprises the step of: driving the second power source 30 to drive the clamping mechanism 10 to move the packaging bag 80 out of the shaping mechanism 20;

[0122] The first power source 13 of the clamping mechanism 10 is driven to move the first clamping part 11 and the second clamping part 12 of the clamping mechanism 10 away from the bag opening 81 of the packaging bag 80.

[0123] Specifically, after the material 90 is placed at the bottom of the packaging bag 80, the first power source drives the first clamping part 11 and the second clamping part 12 to separate and release the packaging bag 80. At this time, the packaging bag 80 falls into other equipment.

[0124] In some embodiments, a controller is further included, which is connected with the clamping mechanism 10, the shaping mechanism 20 and the vacuum mechanism of the clamping device, and is used to execute the driving method of the clamping device of the packaging bag 80.

[0125] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A packaging bag clamping device characterized by comprising: The application relates to a packaging bag clamping device, which comprises a clamping mechanism, a shaping mechanism and a second power source. The clamping mechanism comprises a first clamping piece, a second clamping piece and a first power source, the first clamping piece and the second clamping piece are oppositely arranged, the output end of the first power source is in transmission connection with the first clamping piece and / or the second clamping piece through a first transmission member, and the first power source is used for driving the first clamping piece and the second clamping piece to move relatively close to or relatively far away from each other. The shaping mechanism is arranged on one side of the clamping mechanism, and comprises a bag placing cavity and a closed structure; the bag placing cavity is in air communication with a vacuum mechanism air path; and the closed structure is used for forming a closed space in air communication with the vacuum mechanism air path after a packaging bag is placed in the bag placing cavity. The output end of the second power source is in transmission connection with the clamping mechanism through a second transmission member, and the second power source is used for driving the clamping mechanism to move towards the direction close to or far away from the shaping mechanism so that the packaging bag clamped by the clamping mechanism is placed in or moved out of the shaping mechanism, and the first clamping piece and the second clamping piece are arranged above the shaping mechanism.

2. The bag holder of claim 1, wherein A first bag opening unit is arranged on the side wall of the first clamping piece relative to the second clamping piece, and a second bag opening unit is arranged on the side wall of the second clamping piece relative to the first clamping piece, and the first bag opening unit and the second bag opening unit are used for adsorbing the packaging bag.

3. The bag holder of claim 2, wherein The first bag opening unit and the second bag opening unit are both suction cups.

4. The bag holder of claim 1, wherein: The application further comprises a positioning mechanism, which is arranged on the first clamping piece and / or the second clamping piece; when the clamping mechanism clamps the packaging bag, the preset position of the packaging bag is aligned with the positioning mechanism. The first transmission member comprises a first rack and a first gear, the first rack is in meshing connection with the first gear, the first gear is arranged on the output end of the first power source, and the first rack is connected with the first clamping piece or the second clamping piece.

5. The bag holder of claim 1 wherein, The first transmission member comprises a second rack, a third rack and a second gear, the second rack is connected with the first clamping piece, the third rack is connected with the second clamping piece, and the second gear is in meshing connection with the second rack and the third rack on both sides; and the second gear is arranged on the output end of the first power source.

6. The bag holder of claim 1, wherein The application further comprises a first sliding rail, the first clamping piece and / or the second clamping piece are connected with the first sliding rail, and the first power source drives the first clamping piece and / or the second clamping piece to slide on the first sliding rail.

7. The bag holder of claim 1, wherein: The application further comprises a second sliding rail, the clamping mechanism is connected with the shell of the packaging bag clamping device through the second sliding rail, and the second power source drives the clamping mechanism to slide on the second sliding rail. The shaping mechanism comprises a first warehouse body and a second warehouse body, the first warehouse body and the second warehouse body are arranged in reciprocating movement in the horizontal direction, the first warehouse body and the second warehouse body are in air-tight cooperation when being folded in the horizontal direction, the packaging bag is located between the first warehouse body and the second warehouse body, the first warehouse body and the second warehouse body enclose the bag placing cavity, and an air outlet is further arranged on the bag placing cavity and penetrates the side wall of the bag placing cavity.

8. The bag holder of claim 1, wherein: ​ ​ 9. The bag holder of claim 1, wherein ​ 10. The bag holder of claim 9, wherein The first and second cartridge bodies are provided with third bag units along the upper edges. The first and second cartridge bodies are provided with third bag units along the upper edges.

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