Automatic bag lifting and folding device

Abstract

The utility model relates to the technical field of automatic packaging, and discloses an automatic bag lifting and folding device which comprises a guide mechanism, a bag lifting mechanism and a bag folding mechanism. The guide mechanism comprises two guide frames which are oppositely arranged, and a bag folding space is formed between the two guide frames; the two bag lifting mechanisms are connected to the two guide frames in a relatively sliding mode correspondingly. The bag folding mechanism comprises a bag folding connecting plate, bag folding assemblies and a bag folding assembly, the two ends of the bag folding connecting plate are slidably connected to the two guide frames correspondingly, the two bag folding assemblies are arranged on the first opposite side, close to the bag folding space, of the bag folding connecting plate correspondingly, and the bag folding assembly is connected to the second opposite side, close to the bag folding space, of the bag folding connecting plate; the bag folding assembly comprises two fixed bag folding plates and a sliding bag folding plate; the sliding bag folding plate is arranged between the two fixed bag folding plates in a sliding mode in the direction close to or away from the bag folding space. And the problem that the bag opening of the folded film bag is not smooth enough, so that the later-section box sealing procedure is affected is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic packaging, in particular to an automatic bag lifting and folding device. Background Art

[0002] At present, in the automatic packaging industry, a bagging machine sleeves a film bag into a carton, and after the items are packed into the carton, they flow into the subsequent film bag packaging process. Most of the existing bag mouth packaging methods are heat sealing type, bundling type and bag folding type; the bag folding type bag mouth packaging is suitable for some independent items that do not need to be sealed, are not easy to fall off, and are convenient for later bag opening or reuse scenarios.

[0003] In the prior art, generally, bag lifting manipulators are symmetrically arranged on a frame. The bag lifting manipulators are slidably connected to opposite ends of the frame and are used to lift the bag mouth from the outer periphery of the box mouth of the box body. Then, the bag mouth is closed by a bag folding manipulator, and the bag folding manipulator is lifted and lowered to compress the closed bag mouth inside the box body. However, the bag mouth of the folded film bag is relatively messy and not flat enough, which affects the subsequent box sealing process. Summary of the Utility Model

[0004] In order to solve the deficiencies of the above-mentioned prior art, the utility model provides an automatic bag lifting and folding device, which avoids the problem that the subsequent box sealing process is affected due to the unevenness of the bag mouth of the folded film bag. And it is more convenient for later bag opening or reuse scenarios.

[0005] The technical effects to be achieved by the utility model are realized through the following technical solutions:

[0006] The utility model provides an automatic bag lifting and folding device, comprising:

[0007] A guiding mechanism, comprising two oppositely arranged guiding frames, and a bag folding space is formed between the two guiding frames;

[0008] Bag lifting mechanisms, the two bag lifting mechanisms are respectively slidably connected to the two guiding frames; and

[0009] A bag folding mechanism, comprising a bag folding connecting plate, a bag folding component and a bag stacking component. The two ends of the bag folding connecting plate are respectively slidably connected to the two guiding frames. The two bag folding components are respectively arranged on the first opposite side of the bag folding connecting plate close to the bag folding space, and the bag stacking component is connected to the second opposite side of the bag folding connecting plate close to the bag folding space;

[0010] Wherein, the bag folding component comprises two fixed bag folding plates and a sliding bag folding plate; the sliding bag folding plate is slidably arranged between the two fixed bag folding plates along a direction close to or away from the bag folding space.

[0011] In some implementations, the two fixed bag folding plates and the sliding bag folding plates are staggered and arranged on both sides of the opening edge of the bag body to be folded.

[0012] In this implementation, the two fixed bag folding plates and the sliding bag folding plates can smoothly cross-clamp the bag opening of the film bag when folding the bag, thereby ensuring that the two relatively arranged sliding bag folding plates drive the bag opening to close when they move relative to each other, so as to ensure the reliability of folding the bag opening into an M-shaped bag opening.

[0013] In some implementations, the fixed folding bag plate includes a first fixed wall and a second fixed wall, the first fixed wall is connected to the folding bag connecting plate and extends obliquely toward the folding bag space, and the second fixed wall is connected to an end of the first fixed wall away from the folding bag connecting plate; and / or

[0014] The sliding bag folding plate includes a first sliding wall and a second sliding wall. The first sliding wall is slidably connected to the bag folding connecting plate and extends obliquely toward the bag folding space. The second sliding wall is connected to one end of the first sliding wall away from the bag folding connecting plate.

[0015] In some implementations, the sliding bag folding plate is connected to the bag folding connecting plate in a relatively sliding manner via a bag folding sliding assembly.

[0016] In some implementations, the bag folding sliding assembly includes a slide rail connected to the bag folding connecting plate and two sliders respectively connected to the two sliding bag folding plates, and a sliding drive member drives the two sliders to move relative to each other along the slide rail.

[0017] In some embodiments, the bag stacking assembly includes two relatively arranged bag stacking structures, the bag stacking structures include a bag stacking connector and a bag stacking plate, the bag stacking connector is connected to the bag folding connector plate, the bag stacking plate is rotatably connected to the bag stacking connector, and a rotating drive member drives the bag stacking plate to rotate relative to the bag stacking connector.

[0018] In this implementation, the rotating drive member drives the bag stacking plate to rotate, so that the two oppositely arranged bag stacking plates fold the bag opening in sequence from both sides of the M-shaped bag opening, thereby making the bag opening fit the items in the box, and further making the bag opening flatly stacked in the box, which is convenient for the subsequent box sealing process.

[0019] In some implementations, the bag stacking plate includes a sleeve, a bent wall, and a stacking wall. The sleeve is rotatably connected to the bag stacking connector. One end of the bent wall passes through the sleeve, and the other end is bent and connected to the stacking wall.

[0020] In this implementation, by adjusting the insertion distance between the bending wall and the sleeve, the bag stacking plate can be more adapted to the folding requirements of film bags of different specifications.

[0021] In some implementations, the overlapping wall has a first overlapping surface and a second overlapping surface, the first overlapping surface is affixed to the bending wall, the second overlapping surface is connected to the end of the first overlapping surface away from the bending wall, and is affixed to the film bag to be stacked when stacking the bag.

[0022] In some implementations, the bag folding mechanism further includes a bag blowing assembly connected to a side of the bag folding connecting plate close to the bag folding space, and openings of several bag blowing assemblies are arranged toward the bag folding space.

[0023] In this implementation, after the bag lifting mechanism lifts the bag opening of the film bag, the bag folding assembly clamps the bag opening, and the bag blowing assembly blows toward the outside of the bag opening to blow the bag opening together, making it easier for the bag folding assembly to fold the bag opening into an M-shaped bag opening.

[0024] In some implementations, a bag pressing mechanism is further included, which is arranged downstream of the bag folding mechanism. The bag pressing mechanism includes a fixed seat, a bag pressing connector and a bag pressing structure. The bag pressing connector is slidably connected to the fixed seat, and the bag pressing structure is elastically connected to the end of the bag pressing connector facing away from the fixed seat.

[0025] In summary, the present invention has at least the following advantages:

[0026] The utility model provides an automatic bag folding device, wherein two bag folding assemblies are arranged relative to each other on a side of a bag folding connecting plate close to the bag folding space. When folding a bag, the two fixed bag folding plates of the bag folding assembly are located inside the bag opening, and the sliding bag folding plate is located outside the bag opening. The sliding bag folding plate slides in a direction close to the bag folding space, that is, the two relatively arranged sliding bag folding plates move relative to each other and move closer to the center of the bag folding space to support the bag opening into an M shape. The bag folding assembly folds downward from the side of the M-shaped bag opening so that the bag opening fits the articles in the box smoothly, avoiding the problem of the uneven opening of the folded film bag affecting the subsequent box sealing process. It is also more convenient for later bag removal or reuse. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the structure of the automatic bag lifting and folding device of Example 1;

[0028] Figure 2 for Figure 1 The enlarged partial view of the automatic bag lifting and folding device at point A is shown;

[0029] Figure 3 for Figure 2 A schematic structural diagram of the sliding assembly shown;

[0030] Figure 4 Schematic diagram of the structure of the automatic bag lifting and folding device of Example 2;

[0031] Figure 5 For Figure 4 the structural schematic diagram of the overlapping wall shown;

[0032] Figure 6 the structural schematic diagram of the automatic bag-lifting and bag-folding device of Embodiment 3;

[0033] Figure 7 the structural schematic diagram of the bag-lifting mechanism of Embodiment 3;

[0034] Figure 8 the structural schematic diagram of the bag-pressing mechanism and the bag-folding mechanism of Embodiment 3;

[0035] Figure 9 For Figure 8 the structural schematic diagram of the bag-pressing mechanism shown.

[0036] Markings in the figure:

[0037] 1. Guide mechanism; 11. Guide frame; 12. Bag-folding space;

[0038] 2. Bag-lifting mechanism; 21. Bag-lifting connecting piece; 22. Bag-lifting jaw; 23. Bag-lifting driving piece;

[0039] 3. Bag-folding mechanism; 31. Bag-folding connecting plate; 32. Bag-folding assembly; 321. Fixed bag-folding plate; 3211. First fixed wall; 3212. Second fixed wall; 322. Sliding bag-folding plate; 3221. First sliding wall; 3222. Second sliding wall; 33. Bag-overlapping assembly; 331. Bag-overlapping structure; 3311. Bag-overlapping connecting piece; 3312. Bag-overlapping plate; 331a. Kit; 331b. Bent wall; 331c. Overlapping wall; 332a. First overlapping surface; 332b. Second overlapping surface; 34. Sliding assembly; 341. Slide rail; 342. Slide block; 35. Bag-blowing assembly; 351. Bag-blowing air outlet;

[0040] 4. Bag-pressing mechanism; 41. Fixed seat; 42. Bag-pressing connecting piece; 43. Bag-pressing structure. Detailed implementation manners

[0041] To make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. The described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments.

[0042] Accordingly, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts fall within the scope of protection of the present invention.

[0043] Embodiment 1:

[0044] Please refer to Figure 1 ~ Figure 3 , the automatic bag lifting and folding device of the present invention includes a guiding mechanism 1, a bag lifting mechanism 2, and a bag folding mechanism 3.

[0045] Among them, please combine Figure 1 and Figure 2 , Figure 1 which shows the structural relationship of the guiding mechanism 1, the bag lifting mechanism 2, and the bag folding mechanism 3 in the embodiment of the present invention, Figure 2 and which shows the specific structure of the bag folding assembly 32 in the embodiment of the present invention. Specifically, the guiding mechanism 1 includes two oppositely arranged guiding frames 11, and a bag folding space 12 is formed between the two guiding frames 11; the two bag lifting mechanisms 2 are respectively slidably connected to the two guiding frames 11; the bag folding mechanism 3 includes a bag folding connecting plate 31, a bag folding assembly 32, and a bag stacking assembly 33. The two ends of the bag folding connecting plate 31 are respectively slidably connected to the two guiding frames 11. The two bag folding assemblies 32 are respectively arranged on the first opposite side of the bag folding connecting plate 31 close to the bag folding space 12, and the bag stacking assembly 33 is connected to the second opposite side of the bag folding connecting plate 31 close to the bag folding space 12; among them, the bag folding assembly 32 includes two fixed bag folding plates 321 and a sliding bag folding plate 322; the sliding bag folding plate 322 is slidably arranged between the two fixed bag folding plates 321 along the direction of approaching or departing from the bag folding space 12.

[0046] In this embodiment, a bag lifting mechanism 2 is correspondingly connected to a guiding frame 11. Two bag lifting mechanisms 2 are arranged oppositely to lift the mouth of the film bag from the outer periphery of the box opening. The bag folding assembly 32 folds the lifted bag mouth into an M shape, and then the bag stacking assembly 33 presses the M-shaped bag mouth downward from the side to make the bag mouth fit the bagged item smoothly, that is, stack it flatly inside the box body. The specific working process of the automatic bag lifting and folding device is as follows: The two oppositely arranged bag lifting mechanisms 2 descend along the guiding frame 11 until they reach the bag lifting station. The bag lifting driving member 23 drives the bag lifting mechanism 2 to extend towards the bag folding space 12 until it fits the outer periphery of the box body and is located below the bag mouth. The bag lifting driving member 23 drives the bag lifting mechanism 2 to rise along the guiding frame 11 so that the bag lifting mechanism 2 clamps the bag mouth and lifts it upward to complete the bag lifting process. The bag folding mechanism 3 descends along the guiding frame 11 to the bag folding station, so that the bag folding assembly 32 arranged on the first opposite side of the bag folding connecting plate 31 approaches the bag mouth. The two fixed bag folding plates 321 are located inside the bag mouth, and the sliding bag folding plate 322 is located outside the bag mouth. The sliding bag folding plate 322 slides along the direction close to the bag folding space 12, that is, the two oppositely arranged sliding bag folding plates 322 move relatively and approach the center of the bag folding space 12 to expand the bag mouth into an M shape, facilitating the subsequent bag stacking of the bag mouth. The bag stacking assembly 33 arranged on the second opposite side of the bag folding connecting plate 31 folds downward from the side of the M-shaped bag mouth so that the bag mouth is stacked flatly inside the box body. It can be understood that the first opposite side is the transportation direction of the box body, and the second opposite side is the direction in which the two guiding frames 11 are arranged oppositely. The transportation direction of the box body and the direction in which the two guiding frames 11 are arranged oppositely are perpendicular to each other.

[0047] In the above automatic bag lifting and folding device, the two bag folding assemblies 32 are arranged oppositely on the side of the bag folding connecting plate 31 close to the bag folding space 12. When folding the bag, the two fixed bag folding plates 321 of the bag folding assembly 32 are located inside the bag mouth, and the sliding bag folding plate 322 is located outside the bag mouth. The sliding bag folding plate 322 slides along the direction close to the bag folding space 12, that is, the two oppositely arranged sliding bag folding plates 322 move relatively and approach the center of the bag folding space 12 to expand the bag mouth into an M shape. The bag stacking assembly 33 folds downward from the side of the M-shaped bag mouth so that the bag mouth fits the item in the box smoothly, avoiding the problem that the folded film bag mouth is not flat enough, which affects the subsequent box sealing process. And it is more convenient for the scenarios of later bag opening or reuse.

[0048] In some preferred embodiments, the two fixed bag folding plates 321 and the sliding bag folding plate 322 are arranged in a staggered manner on both sides of the opening edge of the bag to be folded. It is convenient for the two fixed bag folding plates 321 and the sliding bag folding plate 322 to cross-clamp the bag mouth of the film bag smoothly during bag folding, and then ensure the reliability that the two oppositely arranged sliding bag folding plates 322 drive the bag mouth to close when moving relatively, so that the bag mouth is folded into an M-shaped bag mouth.

[0049] In some preferred embodiments, the fixed bag folding plate 321 includes a first fixed wall 3211 and a second fixed wall 3212, the first fixed wall 3211 is connected to the bag folding connecting plate 31 and extends obliquely toward the bag folding space 12, and the second fixed wall 3212 is connected to the end of the first fixed wall 3211 away from the bag folding connecting plate 31; and / or the sliding bag folding plate 322 includes a first sliding wall 3221 and a second sliding wall 3222, the first sliding wall 3221 is slidably connected to the bag folding connecting plate 31 and extends obliquely toward the bag folding space 12, and the second sliding wall 3222 is connected to the end of the first sliding wall 3221 away from the bag folding connecting plate 31. The fixed folding bag plate 321 and the sliding folding bag plate 322 are bent and connected to the folding bag connecting plate 31, which makes it easier to cross-clamp the bag opening of the film bag and improves the stability of clamping the film bag. At the same time, since the second fixed wall 3212 and the second sliding wall 3222 are arranged parallel to the bag opening of the film bag, the folded bag opening is flat and aligned, thereby improving the reliability of the folding bag assembly 32.

[0050] In some more preferred embodiments, see Figure 3 , Figure 3 The diagram illustrates the structural relationship between the slide rail 341 and the slider 342 in an embodiment of the present invention. Specifically, the sliding bag folding plate 322 is connected to the bag folding connecting plate 31 through a bag folding sliding assembly 34 for relative sliding. This improves the reliability of the sliding bag folding plate 322 sliding along the bag folding connecting plate 31, thereby ensuring that the sliding bag folding plate 322 folds the bag opening into an M-shaped bag opening. The bag folding sliding assembly 34 includes a slide rail 341 connected to the bag folding connecting plate 31 and two sliders 342 respectively connected to the two sliding bag folding plates 322. The sliding drive member drives the two sliders 342 to move relative to each other along the slide rail 341. This allows the two sliding bag folding plates 322 to move relative to each other along the bag folding connecting plate 31, thereby improving the stability of the overall structure.

[0051] Example 2:

[0052] The difference between this embodiment and embodiment 1 is that this embodiment further optimizes the structure of the automatic bag lifting and folding device of the utility model. Figure 4 ~Attached Figure 7 .

[0053] Among them, see Figure 4 , Figure 4 The diagram illustrates the structural relationship between the bag stacking connector 3311 and the bag stacking plate 3312 in an embodiment of the present invention. Specifically, the bag stacking assembly 33 includes two opposing bag stacking structures 331, each of which includes a bag stacking connector 3311 and a bag stacking plate 3312. The bag stacking connector 3311 is connected to the bag folding connecting plate 31, and the bag stacking plate 3312 is rotatably connected to the bag stacking connector 3311. A rotary drive member drives the bag stacking plate 3312 to rotate relative to the bag stacking connector 3311.

[0054] In this embodiment, the rotating drive member drives the bag stacking plate 3312 to rotate, so that the two oppositely arranged bag stacking plates 3312 fold the bag opening in sequence from both sides of the M-shaped bag opening, thereby making the bag opening fit the items in the box, and further making the bag opening flatly stacked in the box, which is convenient for the subsequent box sealing process.

[0055] In some preferred embodiments, the bag stacking plate 3312 includes a sleeve 331a, a bent wall 331b, and a superimposed wall 331c. The sleeve 331a is rotatably connected to the bag stacking connector 3311. One end of the bent wall 331b is inserted into the sleeve 331a, and the other end is bent and connected to the superimposed wall 331c. By adjusting the insertion distance between the bent wall 331b and the sleeve 331a, the bag stacking plate 3312 can be made more adaptable to the folding requirements of film bags of different specifications. Specifically, the sleeve 331a is provided with a waist-shaped hole, and the bent wall 331b is inserted into the sleeve 331a. Bolts are simultaneously inserted through the waist-shaped hole and the bent wall 331b to securely connect the bent wall 331b to the sleeve 331a. By adjusting the screw connection position of the bent wall 331b to the waist-shaped hole, the length of the bent wall 331b can be adjusted, thereby making the bag stacking plate 3312 more adaptable to the folding requirements of film bags of different specifications. The bending wall 331b plays a certain supporting role on the overlapping wall 331c, so that the overlapping wall 331c can generate a certain pressure on the film bag when overlapping the film bag, thereby making the film bag fit the items in the box.

[0056] In some more preferred embodiments, see Figure 5 , Figure 5 The diagram illustrates the structural relationship between the first overlapping surface 332a and the second overlapping surface 332b in an embodiment of the present invention. Specifically, the overlapping wall 331c comprises a first overlapping surface 332a and a second overlapping surface 332b. The first overlapping surface 332a is affixed to the bent wall 331b, while the second overlapping surface 332b is connected to the end of the first overlapping surface 332a facing away from the bent wall 331b and affixes to the film bag to be stacked during bag stacking. During bag stacking, the bent wall 331b rotates, thereby driving the first overlapping surface 332a toward and affixing the side of the M-shaped bag opening. The bent wall 331b continues to rotate, causing the first overlapping surface 332a to press against the side of the M-shaped bag opening and fold downward. As the bent wall 331b rotates further, the second overlapping surface 332b presses the bag opening tightly, forcing the bag opening to affix to the items in the box, thereby allowing the bag opening to be smoothly stacked within the box. Specifically, the first overlapping surface 332a is used for scraping and folding, and the second overlapping surface 332b is used for pressing and folding, thereby ensuring the reliability of the overlapping wall 331c.

[0057] Example 3:

[0058] The difference between this embodiment and embodiment 2 is that this embodiment further optimizes the structure of the automatic bag lifting and folding device of the utility model.Figure 6 ~Appendix Figure 9 。

[0059] Among them, please refer to Figure 6 , Figure 6 which shows the structural relationship between the folding bag connecting plate 31 and the bag blowing assembly 35 in the embodiment of the present utility model. Specifically, the bag folding mechanism 3 further includes a bag blowing assembly 35 connected to the side of the folding bag connecting plate 31 close to the bag folding space 12, and the openings of a plurality of bag blowing assemblies 35 are arranged towards the bag folding space 12.

[0060] In this embodiment, after the bag lifting mechanism 2 lifts the mouth of the film bag, the bag folding assembly 32 clamps the mouth of the bag, and the bag blowing assembly 35 blows against the outside of the mouth of the bag to blow the mouth of the bag together, facilitating the bag folding assembly 32 to fold the mouth of the bag into an M-shaped mouth. Specifically, the bag blowing assemblies 35 are relatively arranged on the first opposite side. Preferably, the bag blowing assembly 35 includes two bag blowing air outlets 351, and the two bag blowing air outlets 351 are arranged at intervals to blow the film bag evenly.

[0061] In some preferred embodiments, please refer to Figure 7 , Figure 7 which shows the specific structure of the bag lifting mechanism 2 in the embodiment of the present utility model. Specifically, the bag lifting mechanism 2 includes a bag lifting connecting piece 21, a bag lifting claw 22 and a bag lifting driving piece 23. The bag lifting connecting piece 21 is slidably connected to the guide frame 11. The bag lifting claw 22 is connected to the side of the bag lifting connecting piece 21 close to the bag folding space 12. The bag lifting driving piece 23 is connected to the bag lifting connecting piece 21 and is drivingly connected to the bag lifting claw 22. The bag lifting driving piece 23 drives the bag lifting claw 22 to approach or move away from the bag folding space 12 to complete the bag lifting action. Specifically, the bag lifting claw 22 fits on the outer periphery of the box body and clamps and lifts the film bag sleeved on the outer periphery of the box mouth when rising.

[0062] In some more preferred embodiments, please refer to Figure 8 and Figure 9 , Figure 8 and Figure 9The diagram illustrates the structural relationship between the bag pressing mechanism 4 and the bag folding mechanism 3 in an embodiment of the present invention. Specifically, the automatic bag lifting and bag folding device further includes a bag pressing mechanism 4, which is arranged downstream of the bag folding mechanism 3. The bag pressing mechanism 4 includes a fixed seat 41, a bag pressing connector 42, and a bag pressing structure 43. The bag pressing connector 42 is slidably connected to the fixed seat 41, and the bag pressing structure 43 is elastically connected to the end of the bag pressing connector 42 facing away from the fixed seat 41. After the bag folding mechanism 3 completes the bag folding process, the box is transported to the bag pressing mechanism 4 by a conveying device. The bag pressing connector 42 descends along the fixed seat 41, thereby driving the bag pressing structure 43 to descend to compact the folded film bag in the box and further regularize the film bag. Since the bag pressing structure 43 is elastically connected to the bag pressing connector 42, the problem of hard contact between the bag pressing mechanism 4 and the film bag, which may damage the items in the film bag, is avoided. At the same time, the problem of wear of the film bag by the bag pressing structure 43 is also avoided, further improving the reliability of the bag pressing mechanism 4.

[0063] The automatic bag folding device of the present invention has two bag folding assemblies 32 arranged opposite to each other on one side of the bag folding connecting plate 31 close to the bag folding space 12. When folding the bag, the two fixed bag folding plates 321 of the bag folding assembly 32 are located on the inner side of the bag opening, and the sliding bag folding plate 322 is located on the outer side of the bag opening. The sliding bag folding plate 322 slides in the direction close to the bag folding space 12, that is, the two relatively arranged sliding bag folding plates 322 move relative to each other and move closer to the center of the bag folding space 12 to support the bag opening into an M shape. The bag stacking assembly 33 folds downward from the side of the M-shaped bag opening so that the bag opening fits the articles in the box smoothly, avoiding the problem of the uneven opening of the folded film bag affecting the subsequent box sealing process. It is also more convenient for later bag removal or reuse.

[0064] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0065] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model 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 construed as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0066] In addition, the terms "horizontal", "vertical", "hanging", etc. do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0067] In the present utility model, unless otherwise clearly specified and defined, the first feature being above or below the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being above, over, and on top of the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being below, under, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0068] Although the description of the present utility model is made in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications, and changes based on the above content. Therefore, all such substitutions, improvements, and changes are included within the spirit and scope of the appended claims.

Claims

1. An automatic bag lifting and folding device, characterized in that, Comprising: A guiding mechanism (1), including two oppositely arranged guiding frames (11), with a bag folding space (12) formed between the two guiding frames (11); A bag lifting mechanism (2), with the two bag lifting mechanisms (2) respectively slidably connected to the two guiding frames (11); and A bag folding mechanism (3), including a bag folding connecting plate (31), a bag folding component (32) and a bag stacking component (33), with two ends of the bag folding connecting plate (31) respectively slidably connected to the two guiding frames (11), the two bag folding components (32) respectively arranged on a first opposite side of the bag folding connecting plate (31) close to the bag folding space (12), and the bag stacking component (33) connected to a second opposite side of the bag folding connecting plate (31) close to the bag folding space (12); Wherein, the bag folding component (32) includes two fixed bag folding plates (321) and a sliding bag folding plate (322); the sliding bag folding plate (322) is slidably arranged between the two fixed bag folding plates (321) along a direction approaching or departing from the bag folding space (12).

2. The automatic bag lifting and folding device according to claim 1, characterized in that The two fixed bag folding plates (321) and the sliding bag folding plate (322) are arranged in a staggered manner on both sides of the opening edge of the bag to be folded.

3. The automatic bag lifting and folding device according to claim 2, wherein The fixed bag folding plate (321) includes a first fixed wall (3211) and a second fixed wall (3212), the first fixed wall (3211) is connected to the bag folding connecting plate (31) and extends obliquely towards the bag folding space (12), and the second fixed wall (3212) is connected to one end of the first fixed wall (3211) departing from the bag folding connecting plate (31); and / or The sliding bag folding plate (322) includes a first sliding wall (3221) and a second sliding wall (3222), the first sliding wall (3221) is slidably connected to the bag folding connecting plate (31) and extends obliquely towards the bag folding space (12), and the second sliding wall (3222) is connected to one end of the first sliding wall (3221) departing from the bag folding connecting plate (31).

4. The automatic bag lifting and folding device according to claim 1, characterized in that, The sliding bag folding plate (322) is relatively slidably connected to the bag folding connecting plate (31) through a bag folding sliding component (34).

5. The automatic bag lifting and folding device according to claim 4, characterized in that, The bag folding sliding component (34) includes a slide rail (341) connected to the bag folding connecting plate (31) and two sliders (342) respectively connected to the two sliding bag folding plates (322), and a sliding driving member drives the two sliders (342) to move relatively along the slide rail (341).

6. The automatic bag lifting and folding device according to claim 1, characterized in that The bag stacking component (33) includes two oppositely arranged bag stacking structures (331), the bag stacking structure (331) includes a bag stacking connecting member (3311) and a bag stacking plate (3312), the bag stacking connecting member (3311) is connected to the bag folding connecting plate (31), the bag stacking plate (3312) is rotatably connected to the bag stacking connecting member (3311), and a rotation driving member drives the bag stacking plate (3312) to rotate relative to the bag stacking connecting member (3311).

7. The automatic bag lifting and folding device according to claim 6, wherein The bag stacking plate (3312) comprises a sleeve (331a), a bent wall (331b) and a stacking wall (331c); the sleeve (331a) is rotatably connected to the bag stacking connector (3311); one end of the bent wall (331b) is passed through the sleeve (331a), and the other end is bent and connected to the stacking wall (331c).

8. The automatic bag lifting and folding device according to claim 7, characterized in that, The overlapping wall (331c) has a first overlapping surface (332a) and a second overlapping surface (332b), wherein the first overlapping surface (332a) is closely connected to the bending wall (331b), and the second overlapping surface (332b) is connected to an end of the first overlapping surface (332a) facing away from the bending wall (331b), and is closely connected to the film bag to be stacked when the bag is stacked.

9. The automatic bag lifting and folding device according to claim 1, characterized in that The bag folding mechanism (3) further comprises a bag blowing assembly (35) connected to a side of the bag folding connecting plate (31) close to the bag folding space (12), and openings of several bag blowing assemblies (35) are arranged toward the bag folding space (12).

10. The automatic bag lifting and folding device according to claim 1, characterized in that, The invention also includes a bag pressing mechanism (4), which is arranged downstream of the bag folding mechanism (3). The bag pressing mechanism (4) includes a fixed seat (41), a bag pressing connector (42) and a bag pressing structure (43). The bag pressing connector (42) is slidably connected to the fixed seat (41), and the bag pressing structure (43) is elastically connected to an end of the bag pressing connector (42) that faces away from the fixed seat (41).

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