Inward folding device for organ bag

Abstract

The utility model provides an organ bag infolding device which comprises a machine frame, the machine frame is sequentially provided with an arching assembly, a supporting assembly and an infolding assembly in the organ bag production direction, the arching assembly can press the two sides of a packaging film inwards to be arched, and the supporting assembly can support and assist the packaging film in moving in the production direction. The inward folding assembly can further press the two sides of the packaging film inwards and eliminate arching. The packaging bag is simple in structure, the two sides of the packaging film can be folded inwards through the arching assembly and the inward folding assembly, an organ belt is manufactured, the storage space of the packaging bag is increased, and the occupied space of the bag is reduced when the bag is folded; due to the fact that the multiple first mounting holes and the multiple second mounting holes are formed, the positions of the corresponding first supporting rods and the second supporting rods can be adjusted according to the width of the packaging film so as to meet the requirement for inward folding of the packaging film, adjustment is flexible, and the application range is wide. The outer edge of the circular ring has a radian, so that the packaging film is smooth when being pressed inwards and arched, and the packaging film cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag processing, in particular to an inner folding device for an accordion bag. Background Art

[0002] An accordion bag is formed by folding the two side edges of a flat bag into the inside of the bag, folding the original oval opening of the bag into a rectangular opening. After folding, the edges on both sides of the bag are like vent leaves, but they are closed, which is practical and reduces the space occupied by the bag.

[0003] Patent document CN219006981U discloses a folding mechanism for an accordion bag, wherein a supporting device and a forming device are slidably mounted on a mounting plate, and a driving device for driving the supporting device to slide left and right is mounted on the mounting plate; the supporting device comprises a supporting seat fixedly connected to the driving device, and the supporting seat is provided with two groups of supporting groups that move relative to each other in the up and down directions, and each group of supporting groups is composed of two supporting rods that move relative to each other in the front and back directions; the forming device comprises two main forming devices with the same structure fixedly mounted on the mounting plate and a secondary forming device mounted on the supporting device, and the two main forming devices are symmetrically arranged on both sides of the supporting device, and the PE film material is supported and tensioned by the supporting device, and then the cooled PE film material is secondary formed by the forming device. The PE film material made by an ordinary flat bag film blowing machine can also support the accordion bag.

[0004] In the above scheme, the folding mechanism is suitable for the processing and folding of PE film materials, and also requires molding and cooling, but is not suitable for the folding processing of packaging rolls. Therefore, it is necessary to provide an accordion bag inner folding device to solve the shortcomings of the prior art. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and provide an inner folding device for an accordion bag.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A accordion bag inward folding device includes a frame, on which an arching component, a support component and an inward folding component are sequentially arranged along the production direction of the accordion bag. The arching component can press both sides of the packaging film inward to arch, the support component can support and assist the packaging film to move in the production direction, and the inward folding component can further press both sides of the packaging film inward and eliminate the arch.

[0008] The utility model is further configured that the arching component comprises:

[0009] A first mounting bar, both ends of which are fixedly connected to the frame, and the first mounting bars are evenly distributed with first mounting holes;

[0010] A first support rod, the bottom of which passes through the first mounting hole, and a first blocking piece is provided in the middle of the first support rod;

[0011] A first locking block, the first locking block is connected to the bottom of the first support rod;

[0012] A first limiting piece, the first limiting piece is located at the top of the first supporting rod, and a pair of the first limiting pieces are provided;

[0013] A circular ring is located between the two first limiting pieces.

[0014] The utility model is further configured that the support assembly includes:

[0015] Height adjustment rods, which are installed on both sides of the frame, and a pair of height adjustment rods are provided;

[0016] A roller core, both ends of which are connected to the top of the corresponding height-adjusting rod;

[0017] A roller shaft is sleeved on the roller core.

[0018] The utility model is further configured that the inner folding assembly includes:

[0019] A second mounting bar, both ends of which are fixedly connected to the frame, and the second mounting bars are evenly distributed with second mounting holes;

[0020] A second support rod, the bottom of which passes through the second mounting hole, and a second blocking piece is provided in the middle of the second support rod;

[0021] A second locking block, the second locking block is connected to the bottom of the second support rod;

[0022] A second limiting piece, the second limiting piece is located at the top of the second supporting rod, and a pair of the second limiting pieces are provided;

[0023] The disc is located between the two second limiting pieces.

[0024] The utility model is further configured that the cross section of the circular ring is a rounded rectangle.

[0025] The utility model is further configured that the cross section of the disc is a rectangle.

[0026] The utility model is further configured that a center sealing hot pressing component is provided at the front end of the arching component.

[0027] The utility model is further configured that the rear end of the inner folding component is provided with an end surface hot pressing component.

[0028] In summary, the utility model has the following beneficial effects:

[0029] 1. The utility model has a simple structure. The two sides of the packaging film can be folded inwardly through the arching component and the inward folding component to form an accordion bag, thereby increasing the storage space of the packaging bag and reducing the space occupied by the bag when folded.

[0030] 2. Since the utility model has a plurality of first mounting holes and second mounting holes, the positions of the corresponding first support rods and second support rods can be adjusted according to the width of the packaging film to meet the inward folding of the packaging film. The adjustment is flexible and has a wide range of applications.

[0031] 3. The outer edge of the circular ring of the utility model has an arc, which makes it easier for the packaging film to be pressed inwardly and arched smoothly without damaging the packaging film. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of the utility model.

[0033] Figure 2 It is a structural schematic diagram of the arching component of the utility model.

[0034] Figure 3 It is a structural schematic diagram of the inner folding component of the utility model.

[0035] In the figure, 1. frame, 21. first mounting bar, 22. first support rod, 23. first locking block, 24. first limiting plate, 25. ring, 26. first mounting hole, 27. first baffle, 31. height adjustment rod, 32. roller core, 33. roller shaft, 41. second mounting bar, 42. second support rod, 43. second locking block, 44. second limiting plate, 45. disk, 46. second mounting hole, 47. second baffle, 5. middle sealing hot pressing group, 6. end face hot pressing assembly. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0037] Embodiment 1:

[0038] In this embodiment, if Figure 1-3As shown, the utility model proposes an inner folding device for an accordion bag, including a frame 1, on which an arching component, a supporting component and an inner folding component are sequentially provided along the production direction of the accordion bag. The arching component can press both sides of the packaging film inward to arch, the supporting component can support and assist the packaging film to move in the production direction, and the inner folding component can further press both sides of the packaging film inward and eliminate the arch.

[0039] In this embodiment, it is further configured that the arch assembly includes a first mounting bar 21, a first support rod 22, a first locking block 23, a first limiting plate 24 and a ring 25. Both ends of the first mounting bar are fixedly connected to the frame, and the first mounting bars are evenly distributed with first mounting holes 26; the bottom of the first support rod passes through the first mounting hole, and a first blocking plate 27 is provided in the middle of the first support rod; the first locking block is connected to the bottom of the first support rod; the first limiting plate is located at the top of the first support rod, and a pair of first limiting plates are provided; the ring is located between the two first limiting plates.

[0040] In this embodiment, it is further configured that the supporting assembly includes a height-adjusting rod 31, a roller core 32 and a roller shaft 33. The height-adjusting rods are installed on both sides of the frame, and a pair of height-adjusting rods are provided; the two ends of the roller core are respectively connected to the top of the corresponding height-adjusting rods; the roller shaft is sleeved on the roller core, and the roller shaft is used to support the packaging film and rotate synchronously when the packaging film is conveyed to reduce friction.

[0041] In this embodiment, it is further configured that the inward folding component includes a second mounting strip 41, a second support rod 42, a second locking block 43, a second limiting plate 44 and a disc 45; both ends of the second mounting strip are fixedly connected to the frame, and second mounting holes 46 are evenly distributed on the second mounting strip; the bottom of the second support rod passes through the second mounting hole, and a second blocking plate 47 is provided in the middle of the second support rod; the second locking block is connected to the bottom of the second support rod; the second limiting plate is located at the top of the second support rod, and a pair of second limiting plates are provided; the disc is located between the two second limiting plates.

[0042] In this embodiment, the cross section of the circular ring is a rounded rectangle, and the outer edge of the circular ring has an arc, so that the packaging film can be pressed inwardly into the arch smoothly without damaging the packaging film.

[0043] In this embodiment, it is further configured that the cross section of the disc is rectangular and the disc is relatively thin, so that the packaging film can be further pressed inwardly and folded inwardly.

[0044] In this embodiment, a center sealing heat pressing assembly 5 is further arranged at the front end of the arching assembly, and after both sides of the packaging film are folded inwardly by the folding device, the center of the packaging film is heat-sealed by the center sealing heat pressing assembly to form a semi-closed bag body.

[0045] In this embodiment, it is further configured that an end surface hot pressing component 6 is provided at the rear end of the inner folding component. After the packaging film is folded inwardly by the inner folding component, the end portion of the packaging film is heat-sealed at intervals by the end surface hot pressing component to form a closed bag body, and then the end portion of the packaging film is cut by the cutting component.

[0046] Embodiment 2:

[0047] In this embodiment, if Figure 1-3 As shown, the first mounting hole is provided with an internal thread, the bottom of the first support rod is provided with an external thread matching the first mounting hole, and the first support rod is threadedly connected to the first mounting hole; the second mounting hole is provided with an internal thread, the bottom of the second support rod is provided with an external thread matching the second mounting hole, and the second support rod is threadedly connected to the second mounting hole, which facilitates flexible disassembly and assembly of the first support rod and the second support rod.

[0048] The working principle of the accordion bag inward folding device is as follows: the packaging film is folded outward on both sides in the front process, and when passing through the ring, the width between the two rings is smaller than the width of the packaging film. Under the action of the ring, the two sides of the packaging film are pressed inward and arched. When passing through the disk again, the width between the two disks is smaller than the width between the two rings. During the packaging film conveying process, the packaging film is further pressed inward to eliminate the arching, so that the packaging film is folded inward, and an accordion bag is made in the back process.

[0049] In the description of the present utility model, it should be noted that when terms such as "upper", "lower", "inner", "outer", "left", "right" and the like indicating orientation or positional relationship appear, it should be understood that the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the equipment 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 utility model. In addition, when terms such as "first" and "second" appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, terms such as "installation", "setting", and "connection" should be understood in a broad sense. For example, "connection" 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, or it can be the internal connection of two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. An accordion bag inner folding device, comprising a frame, characterized in that: The frame is provided with an arching component, a supporting component and an inner folding component in sequence along the production direction of the accordion bag. The arching component can press both sides of the packaging film inward to arch, the supporting component can support and assist the packaging film to move in the production direction, and the inner folding component can further press both sides of the packaging film inward and eliminate the arch; The arch assembly includes: A first mounting bar, both ends of which are fixedly connected to the frame, and the first mounting bars are evenly distributed with first mounting holes; A first support rod, the bottom of which passes through the first mounting hole, and a first blocking piece is provided in the middle of the first support rod; A first locking block, the first locking block is connected to the bottom of the first support rod; A first limiting piece, the first limiting piece is located at the top of the first supporting rod, and a pair of the first limiting pieces are provided; A circular ring, the circular ring is located between the two first limiting pieces; The support components include: Height adjustment rods, which are installed on both sides of the frame, and a pair of height adjustment rods are provided; A roller core, both ends of which are connected to the top of the corresponding height-adjusting rod; A roller shaft, which is sleeved on the roller core; The inner folding components include: A second mounting bar, both ends of which are fixedly connected to the frame, and the second mounting bars are evenly distributed with second mounting holes; A second support rod, the bottom of which passes through the second mounting hole, and a second blocking piece is provided in the middle of the second support rod; A second locking block, the second locking block is connected to the bottom of the second support rod; A second limiting piece, the second limiting piece is located at the top of the second supporting rod, and a pair of the second limiting pieces are provided; The disc is located between the two second limiting pieces.

2. The accordion bag inner folding device according to claim 1, characterized in that: The cross section of the ring is a rounded rectangle.

3. The accordion bag inner folding device according to claim 1, characterized in that: The cross section of the disc is rectangular.

4. The accordion bag inner folding device according to claim 1, characterized in that: A middle sealing hot pressing component is provided at the front end of the arching component.

5. The accordion bag inner folding device according to claim 1, characterized in that: An end surface hot pressing component is provided at the rear end of the inner folding component.

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