Packaging device

Abstract

The utility model discloses a packaging device which is characterized in that a bin body is provided with a containing cavity used for containing a packaging bag, the top of the bin body is provided with an opening, and the opening is communicated with the containing cavity; the clamping assembly and the bin body are arranged in a relative movement manner, so that the clamping assembly is arranged above the bin body and can seal the opening; in the first working state, a clamping channel used for clamping a packaging bag is formed in the clamping assembly, and the projection of the clamping channel on the opening plane is located in the outer edge of the opening. The top surface of the clamping assembly is provided with a flat sealing surface; the sealing cover and the clamping assembly are arranged in a relative movement mode, and the sealing face is covered with the sealing cover so that gas in the packaging bag can be extracted. The orthographic projection of the clamping channel is arranged in the outer edge of the opening, and the side walls of the clamping channel are continuously arranged, so that when the clamping channel covers the bin body and is used for exhausting air, the air cannot leak from the side walls of the clamping channel; the sealing surface is flat, and the side wall of the clamping channel is continuous, so that the sealing cover can tightly cover the clamping channel of the clamping assembly, and the vacuumizing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, in particular to a packaging device. Background Art

[0002] At present, most products on the market need to be packaged in packaging bags. The main method is to put the product into the packaging bag, and then seal the bag by vacuuming or filling it with inert gas. Traditional packaging methods mostly use manual packaging. In recent years, many packaging machines have appeared, which greatly improve packaging efficiency and reduce labor costs.

[0003] In order to improve packaging efficiency, the existing packaging mechanism usually has a containing cavity, a sealing block and a vacuum mechanism; the containing cavity contains the packaging bag, and there are two sealing blocks, which are arranged oppositely at the top of the containing cavity, and the opposite side walls of the sealing blocks are flat. When vacuuming, the two sealing blocks are moved closer to each other, the bag opening of the packaging bag is placed above the sealing blocks, and then the vacuum mechanism is covered on the sealing blocks so that the bag opening is placed in the vacuum mechanism.

[0004] However, since a gap needs to be left between the two sealing blocks for gas to be discharged, when the vacuum pumping mechanism is covered on the sealing blocks and vacuum pumping is performed, external gas will enter from the gap between the two sealing blocks, thereby affecting the vacuum pumping efficiency. Utility Model Content

[0005] In view of the above problems, the present application provides a packaging device to improve the vacuuming efficiency.

[0006] To achieve the above objectives, the present application provides a packaging device, comprising:

[0007] A bin body, wherein a receiving cavity for receiving the packaging bag is provided in the bin body, and an opening is provided at the top of the bin body, and the opening is communicated with the receiving cavity;

[0008] A clamping assembly, wherein the clamping assembly and the bin body are arranged to move relative to each other so that the clamping assembly is placed above the bin body and can close the opening; the clamping assembly has a first working state, in which a clamping channel for clamping a packaging bag is formed on the clamping assembly, and a projection of the clamping channel on the opening plane is located within the outer edge of the opening; the top surface of the clamping assembly has a flat sealing surface;

[0009] A sealing cover is arranged to move relative to the clamping assembly and can be covered on the sealing surface and completely cover the clamping channel so that the bag opening of the packaging bag is placed in the sealing cover and the gas in the packaging bag is extracted through the sealing cover.

[0010] In the technical solution of the embodiment of the present application, the clamping assembly includes: a first clamping block and a second clamping block, wherein the first clamping block and the second clamping block are arranged opposite to each other;

[0011] The first clamping block comprises: a first clamping member and two first movable members respectively disposed on both sides of the first clamping member, wherein the first movable members are movably connected to the first clamping member and can protrude from the first clamping member toward the second clamping block or be retracted to be flush with the first clamping member;

[0012] One side edge of the first movable member facing the other first movable member is placed above the side wall of the bin body or above the opening;

[0013] Wherein, in the first working state, the first movable member protrudes from the first clamping member and abuts against the second clamping block, and there is a gap between the first clamping member and the second clamping block, so that the clamping channel is formed between the first clamping member and the second clamping block.

[0014] In the technical solution of the embodiment of the present application, the motion trajectory of the first movable member and the motion trajectory of the first clamping member are parallel to each other.

[0015] In the technical solution of the embodiment of the present application, one side edge of the first movable member facing the other first movable member is placed above the side wall of the bin body.

[0016] In the technical solution of the embodiment of the present application, the first clamping block and the second clamping block are symmetrically arranged;

[0017] The second clamping block comprises: a second clamping member and two second movable members respectively disposed on both sides of the second clamping member, wherein the second movable members are movably connected to the second clamping member and can protrude from the second clamping member toward the first clamping block or be retracted to be flush with the second clamping member;

[0018] One side edge of the second movable member facing the other second movable member is placed above the side wall of the bin body or above the opening;

[0019] Wherein, in the first working state, the second movable member protrudes from the second clamping member and abuts against the first clamping block, and there is a gap between the second clamping member and the first clamping block, so that the clamping channel is formed between the second clamping member and the first clamping block.

[0020] The technical solution of the embodiment of the present application further includes: a first suction cup and a second suction cup, wherein the first suction cup is fixed on the first clamping member, and the second suction cup is fixed on the second clamping member;

[0021] Wherein, when the first clamping member and the second clamping member move away from each other, the first suction cup and the second suction cup move away from each other synchronously to open the packaging bag.

[0022] In the technical solution of the embodiment of the present application, the first clamping block also includes: a first elastic member, one end of the first elastic member is connected to the first movable member, and the other end of the first elastic member is connected to the first clamping member, so that the first movable member can elastically reciprocate in a direction approaching or moving away from the second clamping block.

[0023] In the technical solution of the embodiment of the present application, the first clamping block also includes: a first fixed seat, the first clamping member is fixedly connected to the first fixed seat, one end of the first elastic member is connected to the first movable member, and the other end of the first elastic member is connected to the first fixed seat.

[0024] In the technical solution of the embodiment of the present application, the first elastic member is a spring.

[0025] In the technical solution of the embodiment of the present application, the first clamping block further includes: a slide rail, the first movable member is movably connected to the slide rail, and the movement trajectories of the first movable member and the first clamping member are parallel to each other.

[0026] In the technical solution of the embodiment of the present application, sealing strips are provided on the opposite sides of the first clamping block and the second clamping block.

[0027] In the technical solution of the embodiment of the present application, a sealing strip is provided on the top of the side wall of the warehouse body.

[0028] The technical solution of the embodiment of the present application further includes: a bag opening component; the bag opening component and the bin body are arranged to move relative to each other to absorb the two side walls of the packaging bag;

[0029] The bag opening assembly comprises: a first adsorption unit and a second adsorption unit, wherein the first adsorption unit and the second adsorption unit are arranged opposite to each other, and the first adsorption unit and the second adsorption unit are used to adsorb two side walls of the packaging bag respectively.

[0030] Different from the prior art, the above technical solution, since the projection of the clamping channel on the opening plane is located inside the outer edge of the opening, that is, the entire inner wall edge of the clamping channel is within the opening range, a circumferential seal is formed at the connection between the clamping assembly and the bin body, so that when the clamping channel cover is set on the bin body and vacuum is performed, the gas will not leak from the side of the clamping assembly; at the same time, through the flat sealing surface set on the top of the clamping assembly, the sealing cover can be tightly covered on the clamping channel of the clamping assembly, and the clamping channel is covered by the sealing cover. When the packaging bag is vacuumed, the accommodating cavity inside the bin body and the gas in the packaging bag can only be pumped away in the direction of the sealing cover, thereby improving the vacuuming efficiency.

[0031] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0033] Figure 1 It is a structural diagram of a packaging device in a specific embodiment;

[0034] Figure 2 It is a structural diagram of a bin body and a bracket of a packaging device according to a specific embodiment;

[0035] Figure 3 It is a structural diagram of the cooperation between the clamping assembly and the slide rail of the packaging device in a specific embodiment;

[0036] Figure 4 It is a structural diagram of a clamping assembly of a packaging device in a specific embodiment in a first working state;

[0037] Figure 5 It is a structural diagram of the clamping assembly of the packaging device in a specific embodiment in the second working state;

[0038] Figure 6 It is a schematic diagram of the top view of the clamping assembly of the packaging device and the bin body in a specific embodiment;

[0039] Figure 7 is a schematic diagram of the internal structure of the sealing cover of the packaging device according to a specific embodiment;

[0040] Figure 8 It is a schematic diagram of the state when the bag opening assembly of the packaging device of a specific embodiment moves toward the packaging bag;

[0041] Fig. 9 It is a schematic diagram of a state in which a bag opening assembly of a packaging device in a specific embodiment opens a bag opening of a packaging bag;

[0042] Fig.10 It is a schematic diagram of a state where the first clamping member and the second clamping member of the packaging device of a specific embodiment are close to the packaging bag;

[0043] Fig.11 It is a schematic diagram of a state in which a clamping assembly of a packaging device in a specific embodiment forms a clamping channel;

[0044] Fig.12 for Fig.11 Enlarged view of point A in the middle.

[0045] Description of reference numerals:

[0046] 10. bin body; 20. clamping assembly; 30. sealing cover; 40. sealing strip; 50. bag opening assembly; 60. bracket;

[0047] 11. accommodating cavity; 12. opening;

[0048] 21. Clamping channel; 22. Sealing surface; 23. First clamping block; 24. Second clamping block; 25. Slide rail;

[0049] 51. a first adsorption unit; 52. a second adsorption unit;

[0050] 231, first clamping member; 232, first movable member; 233, first elastic member; 234, first fixing seat;

[0051] 241. A second clamping member; 242. A second movable member. DETAILED DESCRIPTION

[0052] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0054] 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 clearly and specifically defined.

[0055] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0056] 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, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0057] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0058] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0059] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0060] See also Figures 1 to 12 , this embodiment provides a packaging device, including:

[0061] A storage body 10, wherein a receiving cavity 11 for receiving the packaging bag is provided in the storage body 10, and an opening 12 is provided at the top of the storage body 10, and the opening 12 is communicated with the receiving cavity 11;

[0062] A clamping assembly 20, wherein the clamping assembly 20 and the bin body 10 are arranged to move relative to each other, so that the clamping assembly 20 is placed above the bin body 10 and can close the opening 12; the clamping assembly 20 has a first working state, in which a clamping channel 21 for clamping a packaging bag is formed on the clamping assembly 20, and a projection of the clamping channel 21 on the plane of the opening 12 is located inside the outer edge of the opening 12; the top surface of the clamping assembly 20 has a flat sealing surface 22;

[0063] The sealing cover 30 is arranged to move relative to the clamping assembly 20, and can be covered on the sealing surface 22 and completely cover the clamping channel 21, so that the bag opening of the packaging bag is placed in the sealing cover 30, and the gas in the packaging bag is extracted through the exhaust holes on the sealing cover 30, the warehouse body 10 and / or the clamping assembly 20.

[0064] The warehouse body 10 can be made of metal, plastic or other materials, and has a receiving cavity 11 inside the warehouse body 10, which is used to receive the packaging bag to be packaged. The top of the warehouse body 10 has an opening 12, which is connected to the receiving cavity 11, so that the packaging bag can be put in and / or taken out through the opening 12.

[0065] It should also be noted that the side wall of the storage body 10 has a certain thickness, and the opening 12 refers to the area framed by the outer edge of the side wall; that is, the opening 12 includes the hollow area surrounded by the inner edge of the side wall and the top surface of the side wall.

[0066] In some embodiments, the packaging device further includes a bracket 60, and the bin body 10 and the bracket 60 are arranged to move relative to each other; specifically, Figure 2 As shown, the bracket 60 includes: a body 61, a power source 62 and a plurality of sliding units 63. The warehouse body 10 is placed in the body, and the warehouse body 10 is slidably connected to the body 61 through the plurality of sliding units 63. The power source 62 is transmission-connected to the warehouse body 10, and the power source 62 drives the warehouse body 10 to reciprocate in the height direction. Further, the top of the body 61 has an opening for the warehouse body 10 to pass through. The warehouse body 10 passes through the opening under the drive of the power source 62 to achieve the up and down displacement of the warehouse body 10.

[0067] Furthermore, an air extraction hole for extracting air is opened on the side wall or the bottom of the main body 61 , and the air extraction hole runs through the side wall and / or the bottom of the main body 61 .

[0068] The clamping assembly 20 is located above the bin body 10, and realizes relative movement with the bin body 10 through a driving assembly (not shown in the figure). The clamping assembly 20 is placed outside the bin body 10. When it is necessary to clamp a packaging bag, seal an opening 12, etc., the clamping assembly 20 is driven by the driving assembly to move to the top of the bin body 10 in a horizontal, vertical, curved and / or oblique direction to form a closed accommodating chamber 11. According to different movement modes of the clamping assembly 20, a corresponding driving assembly can be set to realize the movement of the clamping assembly 20.

[0069] In some embodiments, the clamping assembly 20 is a plate having strip-shaped through holes, and the strip-shaped through holes constitute a clamping channel 21; further, a movable plate is provided on the side of the clamping channel 21 to clamp the packaging bag located in the middle, so that the opening of the packaging bag is located above the clamping assembly 20 and the bottom of the packaging bag is located below the clamping assembly 20.

[0070] When the clamping assembly 20 is in the first working state, refer to Figure 4 as well as Figure 6 , the clamping assembly 20 is against the top of the bin body 10, and the clamping channel 21 is located above the opening 12; at this time, the orthographic projection of the clamping channel 21 on the plane where the opening 12 is located is completely located within the outer edge of the opening 12, so that the accommodating cavity 11 is connected to the outside world only through the clamping channel 21.

[0071] Furthermore, the orthographic projection of the clamping channel 21 on the plane where the opening 12 is located is completely located within the outer edge of the opening 12, including the following multiple situations: first, the clamping channel 21 is strip-shaped, and the two ends of the clamping channel 21 are placed above the top of the side wall of the warehouse body 10, that is, the two ends of the clamping channel 21 are located between the inner and outer edges of the side wall of the warehouse body 10, and the other two sides are placed above the hollow area; second, the four sides of the clamping channel 21 are all placed between the inner and outer edges of the side wall of the warehouse body 10; third, the four sides of the clamping channel 21 are all placed above the hollow area. Preferably, the end of the clamping channel 21 is placed above the side wall of the warehouse body 10.

[0072] The sealing cover 30 realizes relative movement with the clamping assembly 20 through a corresponding driving assembly (not shown in the figure). It should be noted that when the sealing cover 30 needs to be placed on the clamping assembly 20, the sealing cover 30 is driven by the corresponding driving assembly to move to the top of the clamping assembly 20 in a horizontal, vertical, curved and / or oblique direction, and is airtightly connected with the clamping assembly 20 to form a closed chamber in the sealing cover 30. Furthermore, a suction hole for exhausting air is opened on the side wall or the top of the sealing cover 30, and the suction hole runs through the side wall or the top of the sealing cover 30.

[0073] In order to prevent air leakage between the sealing cover 30 and the clamping assembly 20 when the sealing cover 30 is covered, the top of the clamping assembly 20 has a flat sealing surface 22, and the bottom edge of the sealing cover 30 is in the same plane. Specifically, the vacuum is a hollow structure with an open bottom, and the open bottom and the hollow part are connected to each other; when the sealing cover 30 is covered on the clamping assembly 20, the lower edge of the sealing cover 30 fits with the sealing surface 22 of the clamping assembly 20 to prevent gas leakage from the gap between the sealing cover 30 and the warehouse body 10.

[0074] In some embodiments, the hollow structure in the sealing cover 30 can also accommodate a sealing unit, see Figure 7 After the vacuum operation of the packaging bag is completed, the sealing unit can be directly driven to seal the packaging bag.

[0075] In actual operation, the packaging bag is placed in the accommodating cavity 11 of the warehouse body 10, and the clamping assembly 20 with the clamping channel 21 is pressed against the top of the warehouse body 10, so that the packaging bag passes through the clamping assembly 20 through the clamping channel 21, and the clamping channel 21 clamps the packaging bag; the sealing cover 30 is driven to cover the clamping channel 21 that clamps the packaging bag, and a vacuum operation is performed to extract the gas in the packaging bag.

[0076] The air extraction holes on the sealing cover 30 and the main body 61 can be selected according to actual needs to achieve functions such as vacuum in the bag and opening the packaging bag.

[0077] Different from the prior art, the above technical solution, since the projection of the clamping channel 21 on the opening plane is located inside the outer edge of the opening 12, that is, the entire inner wall edge of the clamping channel 21 is within the range of the opening 12, a circumferential seal is formed at the connection between the clamping assembly 20 and the warehouse body 10, so that when the clamping channel 21 is covered on the warehouse body 10 and vacuum is performed, gas will not leak from the side of the clamping assembly 20; at the same time, through the flat sealing surface set on the top of the clamping assembly 20, the sealing cover 30 can be tightly covered on the clamping channel 21 of the clamping assembly 20, and the clamping channel 21 is covered by the sealing cover 30. When the packaging bag is vacuumed, the accommodating cavity 11 inside the warehouse body 10 and the gas in the packaging bag can only be pumped away in the direction of the sealing cover 30, thereby improving the vacuuming efficiency.

[0078] According to some embodiments of the present application, referring to Figures 3 to 6 The clamping assembly 20 includes: a first clamping block 23 and a second clamping block 24, wherein the first clamping block 23 and the second clamping block 24 are arranged opposite to each other;

[0079] The first clamping block 23 includes: a first clamping member 231 and two first movable members 232 respectively disposed on both sides of the first clamping member 231, wherein the first movable members 232 are movably connected to the first clamping member 231 and can protrude from the first clamping member 231 toward the second clamping block 24 or be retracted to be flush with the first clamping member 231;

[0080] One side edge of the first movable member 232 facing the other first movable member 232 is placed above the side wall of the bin body 10 or above the opening 12;

[0081] Among them, in the first working state, the first movable member 232 protrudes from the first clamping member 231 and abuts against the second clamping block 24, and there is a gap between the first clamping member 231 and the second clamping block 24, so that the clamping channel 21 is formed between the first clamping member 231 and the second clamping block 24.

[0082] It is understandable that, since the first clamping member 231 and the second clamping block 24 can move relative to each other, the interval between the first clamping member 231 and the second clamping block 24 can be adjusted, that is, the clamping channel 21 can have different widths in different states, and can be adjusted according to actual work needs. In certain working states, the first clamping member 231 and the second clamping block 24 can be basically fitted together, at which time the first movable member 232 is flush with the first clamping member 231, and the clamping channel 21 can be considered to be closed, and this state is called the second working state.

[0083] The first clamping block 23 and the second clamping block 24 are arranged opposite to each other, and the first clamping block 23 and the second clamping block 24 are arranged relatively close to each other or relatively far from each other. Figure 4 In the present application, the relative movement direction of the first clamping block 23 and the second clamping block 24 is set to be the width direction a of the clamping channel 21, and the vertical direction to the width direction is the length direction b of the clamping channel 21. The first clamping block 23 includes a first clamping member 231 and a first movable member 232. There are two first movable members 232, which are respectively placed on both sides of the first clamping member 231, and the two first movable members 232 are arranged along the length direction of the clamping channel 21.

[0084] The first clamping member 231 and the first movable member 232 are arranged to fit each other, or there is a gap between them; in the initial position, the surface of the first movable member 232 close to the second clamping block 24 protrudes beyond the surface of the first clamping member 231 close to the second clamping block 24, that is, the distance between the first movable member 232 and the second clamping block 24 is greater than the distance between the first clamping member 231 and the second clamping block 24; the side surface of the first clamping block 23 close to the second clamping block 24 is "concave" shaped.

[0085] The first clamping member 231 and the first movable member 232 are arranged to move relative to each other. Specifically, when the first clamping block 23 is not in contact with the second clamping block 24, the first clamping member 231 and the first movable member 232 move synchronously; when the first clamping block 23 is in contact with the second clamping block 24, the first movable member 232 abuts against the second clamping block 24 and stops moving. At this time, the clamping assembly 20 is in the first working state; the first clamping member 231 continues to approach the second clamping block 24, and at this time, the first movable member 232 moves relative to the first clamping member 231. Further, the movement trajectory of the first movable member 232 is parallel to the movement trajectory of the first clamping member 231.

[0086] In this embodiment, the side of the second clamping block 24 close to the first clamping block 23 is a plane; when the first clamping block 23 and the second clamping block 24 move close to each other, the first movable member 232 contacts the second clamping block 24, and is in the first working state at this time, and a clamping channel 21 is formed between the first clamping member 231 and the second clamping block 24; when the first clamping member 231 contacts the second clamping block 24 (referring to the first clamping member 231 and the second clamping block 24 clamping the packaging bag), the clamping assembly 20 is in the second working state (see Figure 5 ), and the first clamping member 231 and the second clamping block 24 clamp the packaging bag.

[0087] Of course, in other embodiments, the first clamping member 231 and the first movable member 232 can be separately provided, and only when the clamping channel 21 is formed, the first movable member 232 moves from its position under the drive of the driving unit, so that the first clamping member 231 and the first movable member 232 contact each other and enclose the second clamping block 24 to form the clamping channel 21. Then, the first clamping member 231 continues to move toward the second clamping block 24 to reduce the width of the clamping channel 21.

[0088] Preferably, please refer to Figure 1 as well as Figures 3 to 6 , one side edge of the first movable member 232 facing the other first movable member 232 is placed above the side wall of the warehouse body 10.

[0089] When the first movable member 232 contacts the second clamping block 24 to form the clamping channel 21, the clamping channel 21 is surrounded by the edge of the first movable member 232, the edge of the first clamping member 231 and the edge of the second clamping block 24. The edge of the first movable member 232 is placed above the top surface of the side wall of the bin body 10; the two ends of the edge of the first clamping member 231 are also placed above the top surface of the side wall of the bin body 10 and contact the edge of the first movable member 232, and the middle of the edge of the first clamping member 231 is placed above the opening 12; the two ends of the edge of the second clamping block 24 are also placed above the top surface of the side wall of the bin body 10 and contact the edge of the first movable member 232, and the middle of the edge of the second clamping block 24 is placed above the opening 12. This is to prevent gas from leaking from between the first clamping member 231 and the second clamping block 24 during vacuuming.

[0090] It should also be noted that, in this patent, gas leakage may refer to the gas entering a closed chamber from the outside, or the gas being discharged from a closed chamber to the outside.

[0091] According to some embodiments of the present application, referring to Figures 1 to 6 , the first clamping block 23 and the second clamping block 24 are symmetrically arranged;

[0092] The second clamping block 24 includes: a second clamping member 241 and two second movable members 242 respectively disposed on both sides of the second clamping member 241, wherein the second movable members 242 are movably connected to the second clamping member 241 and can protrude from the second clamping member 241 toward the first clamping block 23 or be retracted to be flush with the second clamping member 241;

[0093] One side edge of the second movable member 242 facing the other second movable member 242 is placed above the side wall of the bin body 10 or above the opening 12;

[0094] Among them, in the first working state, the second movable member 242 protrudes from the second clamping member 241 and abuts against the first clamping block 23, and there is a gap between the second clamping member 241 and the first clamping block 23, so that the clamping channel 21 is formed between the second clamping member 241 and the first clamping block 23.

[0095] In this embodiment, the first clamping block 23 and the second clamping block 24 have the same structure and are symmetrically arranged; specifically, the second clamping block 24 includes a second clamping member 241 and a second movable member 242, and there are two second movable members 242, which are respectively placed on both sides of the second clamping member 241, and the two second movable members 242 are arranged along the length direction of the clamping channel 21.

[0096] The second clamping member 241 and the second movable member 242 are arranged to fit each other, or there is a gap between them; in the initial position, the surface of the second movable member 242 close to the first clamping block 23 protrudes beyond the surface of the second clamping member 241 close to the first clamping block 23; the side surface of the second clamping block 24 close to the first clamping block 23 is "concave" shaped.

[0097] The second clamping member 241 and the second movable member 242 are arranged to move relative to each other. Specifically, when the first clamping block 23 is not in contact with the second clamping block 24, the second clamping member 241 and the second movable member 242 move synchronously; when the second clamping block 24 is in contact with the first clamping block 23, the second movable member 242 and the first movable member 232 abut against each other and form a clamping channel 21, that is, the clamping channel 21 is placed between the first clamping member and the second clamping member 241. At this time, the clamping assembly 20 is in the first working state; the second clamping member 241 continues to approach the first clamping block 23, and the second movable member 242 and the second clamping member 241 move relative to each other.

[0098] Furthermore, in this embodiment, when the first clamping block 23 abuts against the second clamping block 24 to form the clamping channel 21, the clamping channel 21 is surrounded by the edge of the relatively arranged first movable member 232, the edge of the relatively arranged second movable member 242, the edge of the first clamping member 231 and the edge of the second clamping member 241.

[0099] The edge of the first movable part 232 and the edge of the second movable part 242 enclosing the clamping channel 21 are placed above the top surface of the side wall of the warehouse body 10; both ends of the edge of the first clamping part 231 are also placed above the top surface of the side wall of the warehouse body 10 and contact with the edge of the first movable part 232 enclosing the clamping channel 21, and the middle part of the edge of the first clamping part 231 is placed above the opening 12; both ends of the edge of the second clamping part 241 are also placed above the top surface of the side wall of the warehouse body 10 and contact with the edge of the second movable part 242 enclosing the clamping channel 21, and the middle part of the edge of the second clamping part 241 is placed above the opening 12; to prevent gas from leaking from between the first clamping block 23 and the second clamping block 24 during vacuuming.

[0100] According to some embodiments of the present application, the device further includes: a first suction cup and a second suction cup, wherein the first suction cup is fixed on the first clamping member 231 , and the second suction cup is fixed on the second clamping member 241 ;

[0101] When the first clamping member 231 and the second clamping member 241 move away from each other, the first suction cup and the second suction cup move away from each other synchronously to open the packaging bag.

[0102] The first suction cup is fixedly arranged on the first clamping member 231, and the second suction cup is fixedly arranged on the second clamping member 241; the first suction cup and the second suction cup are arranged opposite to each other. The end of the first suction cup close to the second suction cup is flush with the first clamping member 231; similarly, the end of the second suction cup close to the first suction cup is flush with the second clamping member 241. During operation, the first clamping block 23 and the second clamping block 24 move towards each other until the packaging bag is clamped, at which time, the first suction cup and the second suction cup start to absorb both sides of the packaging bag; then the first clamping block 23 and the second clamping block 24 move away from each other, so that the first suction cup and the second suction cup apply force to both sides of the packaging bag to open the bag opening.

[0103] According to some embodiments of the present application, referring to Figures 3 to 6 The first clamping block 23 also includes: a first elastic member 233, one end of the first elastic member 233 is connected to the first movable member 232, and the other end of the first elastic member 233 is connected to the first clamping member 231, so that the first movable member 232 elastically reciprocates in a direction close to or away from the second clamping block 24.

[0104] In some embodiments, in order to realize the relative movement between the first clamping member 231 and the first clamping block 23, a slide groove is provided on the side wall of the first clamping member 231 relative to the first movable member 232, and the first movable member 232 slides in the slide groove; and a spring is placed in the slide groove, so that when the first clamping block 23 is not in contact with the second clamping block 24, the first movable member 232 protrudes from the plane of the first clamping member 231 close to the second clamping block 24. Of course, in other embodiments, the spring can also be replaced by an elastic mechanism such as a cylinder or an oil cylinder.

[0105] In the initial state, the first movable member 232 protrudes from the surface of the first clamping member 231 close to the second clamping block 24, and at this time, the first elastic member 233 is in the initial state. When the first movable member 232 contacts the second clamping block 24 and the first movable member 232 continues to approach the second clamping block 24, the first elastic member 233 is gradually compressed until the first clamping member 231 and the second clamping block 24 fit each other.

[0106] Then the first clamping member 231 and the second clamping block 24 are driven away from each other, so that the first clamping member 231 and the second clamping block 24 lightly rest on the two side walls of the packaging bag; at this time, since the first elastic member 233 releases the elastic force, the first movable member 232 continues to resist the second clamping block 24.

[0107] According to some embodiments of the present application, referring to Figures 3 to 6The first clamping block 23 further includes: a first fixing seat 234, the first clamping member 231 is fixedly connected to the first fixing seat 234, one end of the first elastic member 233 is connected to the first movable member 232, and the other end of the first elastic member 233 is connected to the first fixing seat 234. The first elastic member 233 can be a cylinder, an oil cylinder, a magnet, or a spring. Preferably, the first elastic member 233 is a spring.

[0108] The first fixed seat 234 and the first clamping member 231 are integrally formed and arranged. The first fixed seat 234 is placed on the side of the first clamping member 231 away from the second clamping block 24, and the first fixed seat 234 and the first clamping member 231 form a "convex" structure. The first movable member 232 is placed on the side of the first fixed seat 234 close to the first clamping member 231; the first elastic member 233 is placed between the first movable member 232 and the first fixed seat 234, and one end of the first elastic member 233 abuts against the first movable member 232, and the other end abuts against the first fixed seat 234.

[0109] Similarly, the second clamping block 24 also includes: a second fixing seat and a second elastic member, and the second clamping block 24 is the same as the first clamping structure, which will not be described in detail.

[0110] According to some embodiments of the present application, referring to Figures 1 to 3 The first clamping block 23 further includes: a slide rail 25, the first movable member 232 is movably connected to the slide rail 25, and the moving tracks of the first movable member 232 and the first clamping member 231 are parallel to each other.

[0111] The slide rail 25 is placed below the first clamping block 23 and the second clamping block 24, and the slide rail 25 is arranged parallel to the width direction of the clamping channel 21, and the first movable member 232 and the second movable member 242 are slidably arranged on the slide rail 25. Preferably, the slide rail 25 is placed on the top of the bracket 60, that is, the slide rail 25 is fixedly connected to the bracket 60.

[0112] According to some embodiments of the present application, referring to Figures 2 to 4 A sealing strip 40 is provided on the opposite sides of the first clamping block 23 and the second clamping block 24. A sealing strip 40 is provided on the top of the side wall of the bin body 10.

[0113] The sealing strip 40 is made of rubber, silicone, thermoplastic elastomer, thermoplastic vulcanized rubber or polyvinyl chloride, and the sealing strip 40 will further improve the airtightness of the conflicting position. Furthermore, the sealing strip 40 located at the top of the warehouse body 10 is in the shape of a "U" character, and the sealing strip 40 located on the first movable member 232, the first clamping member 231, the second movable member 242 and the second clamping member 241 is in the shape of a strip. When conflicting, the sealing strip 40 is squeezed, and since the sealing strip 40 itself is elastic, the squeezed sealing strip 40 has a tendency to recover to fill the gap and prevent air leakage.

[0114] According to some embodiments of the present application, the bag-opening assembly 50 is also included; the bag-opening assembly 50 is arranged to move relative to the bin body 10 to absorb the two side walls of the packaging bag;

[0115] The bag opening assembly 50 includes a first adsorption unit 51 and a second adsorption unit 52 . The first adsorption unit 51 and the second adsorption unit 52 are arranged opposite to each other. The first adsorption unit 51 and the second adsorption unit 52 are used to adsorb the two side walls of the packaging bag respectively.

[0116] In the present embodiment, the bag opening assembly 50 has an independent power source to drive the bag opening assembly 50 alone; specifically, the bag opening assembly 50 includes a first adsorption unit 51 and a second adsorption unit 52, and the first adsorption unit 51 and the second adsorption unit 52 are arranged opposite to each other. When it is necessary to open the bag opening of the packaging bag, the first adsorption unit 51 and the second adsorption unit 52 are driven to move closer to each other to adsorb the side walls of the packaging bag; after the first adsorption unit 51 and the second adsorption unit 52 respectively adsorb the two side walls of the packaging bag, the first adsorption unit 51 and the second adsorption unit 52 are driven to move relatively away from each other to open the bag opening of the packaging bag.

[0117] Finally, throughout the vacuum sealing process, refer to Figures 8 to 9 First, the first adsorption unit 51 and the second adsorption unit 52 of the bag opening assembly 50 adsorb both sides of the packaging bag to open the bag mouth; then put in tea leaves, rice, beans and other vacuum-packed objects; then drive the first clamping block 23 and the second clamping block 24 to move closer to each other. Since the first movable member 232 protrudes from the first clamping block 23 and the second movable member 242 protrudes from the second clamping block 24, the first movable member 232 and the second movable member 242 are in contact with each other, and a clamping channel 21 is formed between the first clamping member 231 and the second clamping member 241; drive the bin body 10 and the clamping assembly 20 to move relative to each other, so that the clamping assembly 20 is against the opening 12 of the bin body 10, and the opening 12 is connected to the clamping channel 21, and the bag mouth of the packaging bag is placed above the clamping assembly 20.

[0118] See also Figures 10 to 12The first clamping member 231 and the second clamping member 241 are driven to move toward each other to reduce the width of the clamping channel 21 and enable the first clamping member 231 and the second clamping member 241 to clamp the packaging bag; further, the packaging bag can be clamped in the following two ways: first, the first clamping member 231 and the second clamping member 241 are moved toward each other until the first clamping member 231 and the second clamping member 241 clamp the packaging bag, and at this time, the first clamping member 231 and the second clamping member 241 lightly support the side wall of the packaging bag; second, the first clamping member 231 and the second clamping member 241 are moved toward each other until the first clamping member 231 and the second clamping member 241 clamp the packaging bag, and at this time, the first clamping member 231 and the second clamping member 241 clamp the side wall of the packaging bag, and then the first clamping member 231 and the second clamping member 241 move away from each other until the first clamping member 231 and the second clamping member 241 lightly support the side wall of the packaging bag.

[0119] The driving sealing cover 30 is covered on the clamping channel 21 and evacuates the air in the packaging bag to achieve vacuum in the bag.

[0120] Of course, in some embodiments, when an unexpanded packaging bag is placed in the main body 61, the first clamping block 23 and the second clamping block 24 can be brought close to each other to clamp the packaging bag, and then the main body 61 can be driven to evacuate the bag, and the pressure difference between the main body 61 and the inside of the packaging bag can be used to achieve the bag expansion operation.

[0121] In other embodiments, when the packaging bag is already filled with contents, the first movable member 232 and the second movable member 242 contact each other, the first clamping member 231 and the second clamping member 241 do not clamp the packaging bag (at this time the packaging bag rests on the clamping channel 21), the sealing cover 30 is covered on the clamping channel 21, and the gas in the closed cavity is extracted through the suction holes on the sealing cover 30 and / or the main body 61, so that the air pressure in the closed cavity and the packaging bag is reduced; then the first clamping member 231 and the second clamping member 241 are driven to clamp the packaging bag, and at this time, when the vacuum in the closed cavity is broken, a vacuum packaging bag is obtained.

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; 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 all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A packaging device, characterized in that: include: A bin body, wherein a receiving cavity for receiving the packaging bag is provided in the bin body, and an opening is provided at the top of the bin body, and the opening is communicated with the receiving cavity; A clamping assembly, wherein the clamping assembly and the bin body are arranged to move relative to each other so that the clamping assembly is placed above the bin body and can close the opening; the clamping assembly has a first working state, in which a clamping channel for clamping a packaging bag is formed on the clamping assembly, and a projection of the clamping channel on the opening plane is located within the outer edge of the opening; the top surface of the clamping assembly has a flat sealing surface; A sealing cover is arranged to move relative to the clamping assembly, and can be covered on the sealing surface and completely cover the clamping channel.

2. The packaging device according to claim 1, characterized in that: The clamping assembly comprises: a first clamping block and a second clamping block, wherein the first clamping block and the second clamping block are arranged opposite to each other; The first clamping block comprises: a first clamping member and two first movable members respectively disposed on both sides of the first clamping member, wherein the first movable members are movably connected to the first clamping member and can protrude from the first clamping member toward the second clamping block or be retracted to be flush with the first clamping member; One side edge of the first movable member facing the other first movable member is placed above the side wall of the bin body or above the opening; Wherein, in the first working state, the first movable member protrudes from the first clamping member and abuts against the second clamping block, and there is a gap between the first clamping member and the second clamping block, so that the clamping channel is formed between the first clamping member and the second clamping block.

3. The packaging device according to claim 2, characterized in that: The motion trajectory of the first movable member and the motion trajectory of the first clamping member are parallel to each other.

4. The packaging device according to claim 2, characterized in that: One side edge of the first movable member facing the other first movable member is placed above the side wall of the bin body.

5. The packaging device according to claim 2, characterized in that: The first clamping block and the second clamping block are symmetrically arranged; The second clamping block comprises: a second clamping member and two second movable members respectively disposed on both sides of the second clamping member, wherein the second movable members are movably connected to the second clamping member and can protrude from the second clamping member toward the first clamping block or be retracted to be flush with the second clamping member; One side edge of the second movable member facing the other second movable member is placed above the side wall of the bin body or above the opening; Wherein, in the first working state, the second movable member protrudes from the second clamping member and abuts against the first clamping block, and there is a gap between the second clamping member and the first clamping block, so that the clamping channel is formed between the second clamping member and the first clamping block.

6. The packaging device according to claim 5, characterized in that: Also includes: A first suction cup and a second suction cup, wherein the first suction cup is fixed on the first clamping member, and the second suction cup is fixed on the second clamping member; Wherein, when the first clamping member and the second clamping member move away from each other, the first suction cup and the second suction cup move away from each other synchronously to open the packaging bag.

7. The packaging device according to any one of claims 2 to 6, characterized in that: The first clamping block further includes: a first elastic member, one end of which is connected to the first movable member, and the other end of which is connected to the first clamping member, so that the first movable member can elastically reciprocate in a direction approaching or moving away from the second clamping block.

8. The packaging device according to claim 7, characterized in that: The first clamping block further includes: a first fixing seat, the first clamping member is fixedly connected to the first fixing seat, one end of the first elastic member is connected to the first movable member, and the other end of the first elastic member is connected to the first fixing seat.

9. The packaging device according to claim 7, characterized in that: The first elastic member is a spring.

10. The packaging device according to claim 2, characterized in that: The first clamping block further comprises a slide rail, the first movable member is movably connected to the slide rail, and movement tracks of the first movable member and the first clamping member are parallel to each other.

11. The packaging device according to claim 2, characterized in that: Sealing strips are arranged on the opposite sides of the first clamping block and the second clamping block.

12. The packaging device according to claim 1, characterized in that: A sealing strip is arranged on the top of the side wall of the bin body.

13. The packaging device according to claim 1, characterized in that: Also includes: Bag assembly; The bag opening assembly is arranged to move relative to the bin body to absorb the two side walls of the packaging bag; The bag opening assembly comprises: a first adsorption unit and a second adsorption unit, wherein the first adsorption unit and the second adsorption unit are arranged opposite to each other, and the first adsorption unit and the second adsorption unit are used to adsorb two side walls of the packaging bag respectively.

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