A bag opening forming mechanism for processing soft packaging bags

Abstract

The utility model discloses a bag opening opening forming mechanism for processing a flexible packaging bag, comprising a frame, a first lifting component, a second lifting component, a first spacing adjustment component, a second spacing adjustment component, a vacuum suction nozzle and a bag opening plate, wherein the first spacing adjustment component is connected to two of the vacuum suction nozzles, and the second spacing adjustment component is connected to two of the bag opening plates. The vacuum suction nozzle of the utility model can be adsorbed on the outer side wall of the flexible packaging bag, and then the first spacing adjustment component is adjusted to increase the distance between the two vacuum suction nozzles, so that the bag opening of the flexible packaging bag is slightly opened, so that the bag opening of the flexible packaging bag can be extended into the bag opening of the flexible packaging bag, and the bag opening of the flexible packaging bag is opened and formed as the spacing adjustment of the second spacing adjustment component increases. Such a configuration can keep the flexible packaging bag in a stable shape during the bag opening opening process, avoid deformation or collapse during the bag making process, and thus ensure the product quality of the flexible packaging bag.

Description

Technical Field

[0001] The utility model relates to the field of soft packaging bag processing, in particular to a bag opening opening forming mechanism for soft packaging bag processing. Background Art

[0002] Flexible packaging bags are soft packaging bags made of plastic materials. Such packaging bags are usually made of various types of plastics, such as polyethylene, polypropylene, polyvinyl chloride, polylactic acid, etc. Plastic flexible packaging bags are widely used in the packaging of food, daily necessities, cosmetics, medicines and other fields. They are light, easy to carry, moisture-proof, anti-oxidation, etc., and can effectively protect the quality of products and extend the shelf life.

[0003] In the prior art, during the processing and bag making process of flexible packaging bags, the traditional flexible packaging bag materials are not unfolded and formed, and the structure is generally flat. One end of the bag mouth needs to be opened before the subsequent process can be carried out. The bag mouth of the flexible packaging bag is usually opened by pulling it to both sides through a suction nozzle. However, this opening method will cause wrinkles in the flexible packaging bag, thereby affecting the product quality of the flexible packaging bag.

[0004] Therefore, the prior art has defects and needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a bag opening forming mechanism for processing a soft packaging bag with good bag opening forming effect and simple structure.

[0006] To achieve this purpose, the utility model adopts the following technical solutions: a bag opening forming mechanism for processing a flexible packaging bag, comprising a frame, a first lifting assembly, a second lifting assembly, a first spacing adjustment assembly, a second spacing adjustment assembly, a vacuum suction nozzle and a bag opening plate;

[0007] The first lifting assembly and the second lifting assembly are arranged on both sides of the frame, the movable end of the first lifting assembly is arranged upward and connected to the first spacing adjustment assembly, and the movable end of the second lifting assembly is arranged upward and connected to the second spacing adjustment assembly;

[0008] The first spacing adjustment component is connected to the two vacuum suction nozzles, and the vacuum suction nozzles are used to absorb the outer side wall of the soft packaging bag. The second spacing adjustment component is connected to the two bag support plates, and the bag support plates are used to extend into the interior of the soft packaging bag. The bag support plates are arranged between the two vacuum suction nozzles.

[0009] The first spacing adjustment assembly and the second spacing adjustment assembly have the same structure, and both include a push-pull cylinder, a connecting rod arm, a mounting seat, a gear, a rack and an extension rod;

[0010] The movable end of the first lifting assembly is connected to the mounting seat, the gear is rotatably connected to the middle of the mounting seat, and sliding grooves are provided on both sides of the mounting seat;

[0011] The rack is arranged in the slide slot, and the side wall of the rack is meshedly connected with the gear, and the rack is used to move along the length direction of the slide slot as the gear rotates;

[0012] A connecting rod arm is provided on the top of the gear, and the movable end of the push-pull cylinder is connected to the connecting rod arm. The push-pull cylinder is used to push the connecting rod arm to drive the gear to rotate;

[0013] The extension rod is in an L-shaped structure, one end of the extension rod is connected to the end of the rack, and the other end of the extension rod is connected to the bag support plate or the vacuum nozzle.

[0014] By adopting the above technical scheme, in the bag opening forming mechanism for processing the soft packaging bag, the first lifting component and the second lifting component have the same structure, both of which include a lifting cylinder and a lifting plate, the movable end of the lifting cylinder is connected to the lifting plate, and the mounting seat is arranged on the lifting plate.

[0015] By adopting the above-mentioned technical solutions, in the bag opening forming mechanism for processing the soft packaging bag, the lifting stroke of the first lifting component is smaller than the lifting stroke of the second lifting component.

[0016] By adopting the above-mentioned technical solutions, in the bag opening forming mechanism for processing the soft packaging bag, the lower half of the bag opening plate is formed with a conical structure whose width gradually decreases from top to bottom.

[0017] By adopting the above-mentioned technical solutions, in the bag opening forming mechanism for processing the soft packaging bag, the first spacing adjustment component also includes a pipe clamping seat and a connecting pipe;

[0018] The pipe clamping seat is arranged at the end of the extension rod, the connecting pipe is sleeved in the pipe clamping seat, the pipe clamping seat is used to clamp the connecting pipe, and the vacuum suction nozzle is arranged at the bottom of the connecting pipe.

[0019] By adopting the above-mentioned technical solutions, in the bag opening forming mechanism for processing the soft packaging bag, the thickness of the bag opening plate is 1-4 mm.

[0020] By adopting the above-mentioned technical solutions, in the bag opening forming mechanism for processing the soft packaging bag, the connecting rod arm is an angular structure, and the connecting rod arm is connected to the gear through a rotating shaft.

[0021] By adopting the above-mentioned technical solutions, in the bag opening forming mechanism for processing the soft packaging bag, the side of the bag opening plate adjacent to the vacuum suction nozzle is coated with a polytetrafluoroethylene coating.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] When the utility model needs to open the bag opening of the flexible packaging bag, the first lifting component can drive the vacuum suction nozzle to move below the bag opening edge of the flexible packaging bag, and then the first spacing adjustment component can adjust to reduce the distance between the two vacuum suction nozzles so that the vacuum suction nozzle and the outer side wall of the flexible packaging bag are adsorbed, and then the first spacing adjustment component is adjusted to increase the distance between the two vacuum suction nozzles so that the bag opening of the flexible packaging bag is slightly opened, and finally, under the action of the second lifting component, the bag opening plate is extended into the bag opening of the flexible packaging bag, and as the spacing of the second spacing adjustment component is adjusted to increase, the bag opening of the flexible packaging bag is opened and formed; by adopting the bag opening plate, the flexible packaging bag can maintain a stable shape during the bag opening opening process, and deformation or collapse during the bag making process can be avoided, thereby ensuring the product quality of the flexible packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0026] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the first spacing adjustment component of the utility model;

[0028] Figure 3 This is a partial structural diagram of the first spacing adjustment component of the utility model;

[0029] Figure 4 It is a schematic diagram of the bag support plate structure of the utility model. DETAILED DESCRIPTION

[0030] In order to make the utility model's purpose, features, and advantages more obvious and easy to understand, the following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the embodiments described below are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0032] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0033] like Figures 1 to 4As shown, an embodiment of the utility model provides a bag opening forming mechanism for processing a flexible packaging bag, comprising a frame 1, a first lifting component 2, a second lifting component 3, a first spacing adjustment component 4, a second spacing adjustment component 5, a vacuum suction nozzle 6 and a bag opening plate 7, wherein the first lifting component 2 and the second lifting component 3 are arranged on both sides of the frame 1, the movable end of the first lifting component 2 is arranged upward and connected to the first spacing adjustment component 4, the movable end of the second lifting component 3 is arranged upward and connected to the second spacing adjustment component 5, the first spacing adjustment component 4 is connected to the two vacuum suction nozzles 6, the vacuum suction nozzle 6 is used to absorb the outer side wall of the flexible packaging bag, the second spacing adjustment component 5 is connected to the two bag opening plates 7, the bag opening plates 7 are used to extend into the interior of the flexible packaging bag, and the bag opening plates 7 are arranged between the two vacuum suction nozzles 6. When it is necessary to open the bag opening of the soft packaging bag, the first lifting component 2 can drive the vacuum suction nozzle 6 to move below the edge of the bag opening of the soft packaging bag, and then the first spacing adjustment component 4 can adjust to reduce the distance between the two vacuum suction nozzles 6, so that the vacuum suction nozzle 6 and the outer wall of the soft packaging bag are adsorbed, and then the first spacing adjustment component 4 adjusts to increase the distance between the two vacuum suction nozzles 6, so that the bag opening of the soft packaging bag is slightly opened, and finally, under the action of the second lifting component 3, the bag opening plate 7 is extended into the bag opening of the soft packaging bag, and as the spacing adjustment of the second spacing adjustment component 5 increases, the bag opening of the soft packaging bag is opened and formed; by using the bag opening plate 7, the soft packaging bag can maintain a stable shape during the bag opening opening process, avoiding deformation or collapse during the bag making process, thereby ensuring the product quality of the soft packaging bag.

[0034] like Figures 1 to 3As shown, the first spacing adjustment component 4 and the second spacing adjustment component 5 have the same structure, both of which include a push-pull cylinder 41, a connecting rod arm 42, a mounting seat 43, a gear 44, a rack 45 and an extension rod 46. The movable end of the first lifting component 2 is connected to the mounting seat 43, and the gear 44 is rotatably connected to the middle of the mounting seat 43. Slide grooves 430 are provided on both sides of the mounting seat 43. The rack 45 is arranged in the slide groove 430, and the side wall of the rack 45 is meshed with the gear 44. The gear rail 45 is connected to the gear 44, and the gear rail 45 is used to move along the length direction of the slide slot 430 as the gear 44 rotates. A connecting rod arm 42 is provided on the top of the gear 44. The movable end of the push-pull cylinder 41 is connected to the connecting rod arm 42. The push-pull cylinder 41 is used to push the connecting rod arm 42 to drive the gear 44 to rotate. The extension rod 46 is an L-shaped structure. One end of the extension rod 46 is connected to the end of the gear rail 45, and the other end of the extension rod 46 is connected to the bag support plate 7 or the vacuum suction nozzle 6. When it is necessary to adjust the spacing between the two vacuum suction nozzles 6 or the two bag support plates 7, the connecting rod arm 42 can be driven to rotate by the telescopic movement of the push-pull cylinder 41. Since the connecting rod arm 42 is connected to the gear 44, the gear 44 is driven to rotate. The rotation of the gear 44 causes the two gear rails 45 to move along the length direction of the slide slot 430 respectively, thereby realizing the adjustment of the spacing. It should be noted that when the gear 44 rotates, the moving directions of the two racks 45 are parallel and opposite. With this arrangement, the telescopic adjustment of the vacuum nozzle 6 or the bag support plate 7 can be achieved under the driving action of the same power source.

[0035] like Figure 1 As shown, further, the first lifting assembly 2 and the second lifting assembly 3 have the same structure, both of which include a lifting cylinder 21 and a lifting plate 22, the movable end of the lifting cylinder 21 is connected to the lifting plate 22, and the mounting seat 43 is arranged on the lifting plate 22. In this embodiment, the first lifting assembly 2 and the second lifting assembly 3 respectively drive the lifting plate 22 to perform lifting actions through the lifting cylinder 21.

[0036] Furthermore, the lifting stroke of the first lifting assembly 2 is smaller than the lifting stroke of the second lifting assembly 3. Since the soft packaging bag is deep, the lifting stroke of the bag support plate 7 is large.

[0037] like Figure 1 and Figure 4 As shown, further, a conical structure 71 with a gradually decreasing width from top to bottom is formed on the lower half of the bag support plate 7. The setting of the conical structure 71 makes it easier for the bag support plate 7 to extend into the interior of the soft packaging bag.

[0038] like Figure 1As shown, further, the first spacing adjustment component 4 also includes a clamping tube seat 47 and a connecting tube 48, the clamping tube seat 47 is arranged at the end of the extension rod 46, the connecting tube 48 is sleeved in the clamping tube seat 47, the clamping tube seat 47 is used to clamp the connecting tube 48, and the vacuum suction nozzle 6 is arranged at the bottom of the connecting tube 48. By adjusting the position of the connecting tube 48 in the clamping tube seat 47, the height of the vacuum suction nozzle 6 can be finely adjusted to adapt to soft packaging bags of different sizes or shapes, thereby reducing the lifting and moving stroke of the first lifting component 2.

[0039] Furthermore, the thickness of the bag support plate 7 is 1-4 mm. In this embodiment, the thickness of the bag support plate 7 is 2 mm.

[0040] like Figure 2 As shown, further, the connecting rod arm 42 is an angular structure, and the connecting rod arm 42 and the gear 44 are connected through a rotating shaft 40. When the connecting rod arm 42 rotates, the gear 44 can be driven to rotate by the rotation.

[0041] Furthermore, the side of the bag-opening plate 7 close to the adjacent vacuum nozzle 6 is coated with a polytetrafluoroethylene coating. The polytetrafluoroethylene coating has excellent anti-adhesion performance, and coating it on the side wall of the bag-opening plate 7 can prevent the bag-opening plate 7 from adhering to the flexible packaging bag during the process of opening the flexible packaging bag, thereby preventing product quality problems.

[0042] When the utility model needs to open the bag opening of the soft packaging bag, the first lifting component 2 can drive the vacuum suction nozzle 6 to move below the bag opening edge of the soft packaging bag, and then the first spacing adjustment component 4 can adjust to reduce the distance between the two vacuum suction nozzles 6, so that the vacuum suction nozzle 6 and the outer wall of the soft packaging bag are adsorbed, and then the first spacing adjustment component 4 adjusts to increase the distance between the two vacuum suction nozzles 6, so that the bag opening of the soft packaging bag is slightly opened, and finally, under the action of the second lifting component 3, the bag opening plate 7 is extended into the bag opening of the soft packaging bag, and as the spacing adjustment of the second spacing adjustment component 5 increases, the bag opening of the soft packaging bag is opened and formed; by adopting the bag opening plate 7, the soft packaging bag can maintain a stable shape during the bag opening opening process, avoid deformation or collapse during the bag making process, thereby ensuring the product quality of the soft packaging bag.

[0043] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A bag opening forming mechanism for processing a flexible packaging bag, characterized in that: It includes a frame, a first lifting assembly, a second lifting assembly, a first spacing adjustment assembly, a second spacing adjustment assembly, a vacuum suction nozzle and a bag support plate; The first lifting assembly and the second lifting assembly are arranged on both sides of the frame, the movable end of the first lifting assembly is arranged upward and connected to the first spacing adjustment assembly, and the movable end of the second lifting assembly is arranged upward and connected to the second spacing adjustment assembly; The first spacing adjustment component is connected to the two vacuum suction nozzles, and the vacuum suction nozzles are used to absorb the outer side wall of the soft packaging bag. The second spacing adjustment component is connected to the two bag support plates, and the bag support plates are used to extend into the interior of the soft packaging bag. The bag support plates are arranged between the two vacuum suction nozzles. The first spacing adjustment assembly and the second spacing adjustment assembly have the same structure, and both include a push-pull cylinder, a connecting rod arm, a mounting seat, a gear, a rack and an extension rod; The movable end of the first lifting assembly is connected to the mounting seat, the gear is rotatably connected to the middle of the mounting seat, and sliding grooves are provided on both sides of the mounting seat; The rack is arranged in the slide slot, and the side wall of the rack is meshedly connected with the gear, and the rack is used to move along the length direction of the slide slot as the gear rotates; A connecting rod arm is provided on the top of the gear, and the movable end of the push-pull cylinder is connected to the connecting rod arm. The push-pull cylinder is used to push the connecting rod arm to drive the gear to rotate; The extension rod is in an L-shaped structure, one end of the extension rod is connected to the end of the rack, and the other end of the extension rod is connected to the bag support plate or the vacuum nozzle.

2. The bag opening forming mechanism for processing a flexible packaging bag according to claim 1, characterized in that: The first lifting assembly and the second lifting assembly have the same structure, and both include a lifting cylinder and a lifting plate. The movable end of the lifting cylinder is connected to the lifting plate, and the mounting seat is arranged on the lifting plate.

3. The bag opening forming mechanism for processing a flexible packaging bag according to claim 2, characterized in that: The lifting stroke of the first lifting assembly is smaller than the lifting stroke of the second lifting assembly.

4. The bag opening forming mechanism for processing a flexible packaging bag according to claim 1, characterized in that: The lower half of the bag-supporting plate is formed with a conical structure whose width gradually decreases from top to bottom.

5. The bag opening forming mechanism for processing a flexible packaging bag according to claim 1, characterized in that: The first spacing adjustment component also includes a pipe clamp seat and a connecting pipe; The pipe clamping seat is arranged at the end of the extension rod, the connecting pipe is sleeved in the pipe clamping seat, the pipe clamping seat is used to clamp the connecting pipe, and the vacuum suction nozzle is arranged at the bottom of the connecting pipe.

6. The bag opening forming mechanism for processing a flexible packaging bag according to claim 1, characterized in that: The thickness of the bag support plate is 1-4 mm.

7. The bag opening forming mechanism for processing a flexible packaging bag according to claim 1, characterized in that: The connecting rod arm is an angular structure, and the connecting rod arm is connected to the gear via a rotating shaft.

8. The bag opening forming mechanism for processing a flexible packaging bag according to claim 1, characterized in that: The side of the bag support plate adjacent to the vacuum suction nozzle is coated with a polytetrafluoroethylene coating.

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