Folding device for non-woven fabric bag

By using precise positioning and compression component design of the nonwoven bag folding device, the problems of low efficiency and inability to achieve tight folding in traditional manual folding have been solved, realizing efficient and tight folding of nonwoven bags, thus improving production efficiency and product quality.

CN223791113UActive Publication Date: 2026-01-13WENZHOU BILIANG BAG MAKING CO LTD
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Patent Information

Application Number
CN202520408499.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-01-13
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

Traditional nonwoven bag folding methods rely on manual operation, which is inefficient and makes it difficult to ensure the consistency and accuracy of folding. Furthermore, existing devices cannot effectively compress the folds of the nonwoven bags after folding, resulting in them unfolding loosely.

Method used

A nonwoven bag folding device was designed. It achieves precise positioning and leveling through a precision positioning groove and a leveling component. Combined with an extrusion component, a clearance groove, and a second transmission belt, it ensures rapid extrusion, folding, and discharge of the nonwoven bag.

Benefits of technology

It improves the efficiency and quality of non-woven bag folding, ensures the consistency and tightness of folding, avoids wrinkles and fluffiness, and meets production needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a folding device for a non-woven fabric bag, and relates to the technical field of non-woven fabric bag processing. The device comprises a workbench, a fixed seat is fixedly installed on the top of the workbench, a first movable seat and a second movable seat are arranged on the top of the workbench in a sliding mode, and the first movable seat and the second movable seat are both located on one side of the fixed seat and both matched with the fixed seat. And an extrusion cavity is formed in a gap between the first moving seat and the second moving seat. According to the folding device, through the accurate positioning groove and the leveling assembly, accurate positioning and leveling of the non-woven fabric bag are achieved, and the problems of wrinkles and fluffiness are avoided; the extrusion assembly is tightly matched with the abutting inclined face through a fixing plate, and effective extrusion and folding of the non-woven fabric bag are achieved. Meanwhile, through the arrangement of a receding groove and a second transmission belt, it is ensured that the folded non-woven fabric bags are rapidly discharged, and the production efficiency is improved; the whole structure is simple, operation is convenient and fast, maintenance is easy, and the non-woven fabric bag production requirement is met.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to non - woven bag processing technical field, especially, relate to a non - woven bag's folding device. BACKGROUND

[0002] Non - woven bag is a kind of green product, tough and durable, modeling beautiful, good air permeability, can be reused, can be washed, can silk print advertisement, mark, long service life.In the existing non - woven bag production process, folding non - woven bag is an important link, is favorable for the subsequent storage of non - woven bag.However, the following problems still exist in the folding processing of traditional non - woven bag:

[0003] Traditional non - woven bag folding mode mostly relies on manual operation, which is not only inefficient, but also difficult to guarantee the consistency and accuracy of folding.At the same time, some non - woven bag folding devices in the prior art can only fold non - woven bag, and the non - woven bag is not compactly extruded after folding, so the folding mark is not obvious, and the non - woven bag is easy to unfold again, which is not conducive to the subsequent storage of non - woven bag. SUMMARY

[0004] The utility model aims at providing a kind of non - woven bag's folding device, in the utility model, the folding device is positioned with flattening component through accurate groove, realizes the accurate positioning and flattening of non - woven bag, avoids the problem of wrinkle and puffy;Extrusion component is designed ingeniously, and fixed plate is closely matched with abutment inclined plane, realizes the effective extrusion folding of non - woven bag;At the same time, the setting of the gap groove and the second transmission belt ensures the quick discharge of non - woven bag after folding, improves production efficiency;Overall simple structure, convenient operation, easy to maintain, meet the non - woven bag production demand, significantly improve product quality and production efficiency, solve the existing technical problem.

[0005] To solve the above technical problems, the utility model is realized by the following technical schemes:

[0006] A kind of non - woven bag's folding device, comprising:

[0007] Workbench, the top of the workbench is fixedly installed with fixed seat, the top of the workbench is slidably provided with first mobile seat and second mobile seat, the first mobile seat and second mobile seat are located at the side of fixed seat and are matched with fixed seat, the gap between the first mobile seat and second mobile seat forms extrusion cavity, and the extrusion cavity is used to extrude non - woven bag to make it fold;

[0008] Two positioning plates are fixedly installed on the top of the fixed base, and a second positioning groove is formed between the two positioning plates. The top of the first movable base and the second movable base are both provided with grooves. The two grooves cooperate to form the first positioning groove. The first positioning groove and the second positioning groove cooperate with each other to complete the positioning of the non-woven bag to be folded.

[0009] It also includes a compression assembly for pressing the nonwoven bag located above the first movable seat and the second movable seat between the first movable seat and the second movable seat, and completing the compression folding;

[0010] It also includes a leveling component, which is used to press and level the nonwoven bag before folding.

[0011] Optionally, the extrusion assembly includes two limiting brackets fixedly installed on the top of the workbench. Each of the two limiting brackets has a limiting groove on one side. The same mounting frame is slidably arranged on one side of the two limiting brackets. Two positioning rods are fixedly installed on one side of the mounting frame. The two positioning rods are slidably connected to the inner wall of the corresponding limiting groove. Two cylinders are fixedly embedded in the top of the workbench. One end of the piston rod of each of the two cylinders is fixedly connected to the bottom of the mounting frame. A pressing rod is fixedly installed on one side of the mounting frame. The pressing rod is used to push the non-woven bag located in the first positioning groove into the extrusion chamber, causing it to bend.

[0012] Optionally, the extrusion assembly further includes a fixing plate fixedly installed on one side of the first movable seat and the second movable seat. The top of each fixing plate has an abutment slope, and the two abutment slopes are close to each other. Each fixing plate cooperates with the mounting frame through the corresponding abutment slope, used to separate the first movable seat and the second movable seat when the pressing rod descends. Multiple limiting guide rods are fixedly installed on the opposite sides of the first and second movable seats, arranged in pairs. Multiple fixing frames are fixedly installed on the top of the worktable. One end of each pair of limiting guide rods in the same group slides through the corresponding fixing frame. A second spring is sleeved on the outer wall of each limiting guide rod. One end of each second spring is fixedly connected to one side of an adjacent first or second movable seat, and the other end of each second spring is fixedly connected to one side of an adjacent fixing frame. The multiple second springs are used to bring the first and second movable seats closer together after the pressing rod rises to disengage from the extrusion chamber, thereby completing the extrusion and folding of the bent non-woven bag.

[0013] Optionally, both the bottom of the first movable seat and the second movable seat are provided with grooves, and the two grooves cooperate to form a relief groove. The relief groove is located below the extrusion chamber, and a second transmission belt is provided in the relief groove. The second transmission belt is installed on the top of the worktable and is used to discharge the extruded and folded non-woven bags.

[0014] Optionally, the leveling assembly includes limiting grooves formed on one side of the two positioning plates that are close to each other. A fixing rod is fixedly installed inside each of the two limiting grooves. A movable block is fitted onto the outer wall of each of the two fixing rods. The two movable blocks are slidably connected to the inner wall of the corresponding limiting groove. A common pressing roller is rotatably connected between the two movable blocks. The two pressing rollers are used to press and level the non-woven bag to be folded. A first spring is fitted onto the outer wall of each of the two fixing rods. One end of each of the two first springs is fixedly connected to the top of the adjacent movable block, and the other end of each of the two first springs is fixedly connected to the top inner wall of the corresponding limiting groove, for continuously applying a downward force to the pressing roller.

[0015] Optionally, a first conveyor belt is provided on the top of the fixed base, which cooperates with the pressing roller to transport the non-woven bag to be folded.

[0016] Optionally, a plurality of baffles are fixedly installed on the surface of the conveyor belt of the second transmission belt, and the plurality of baffles are used to pull out the folded non-woven bags.

[0017] The embodiments of this utility model have the following beneficial effects:

[0018] In this invention, by setting the first positioning groove and the second positioning groove, the precise positioning of the non-woven bag to be folded is achieved, ensuring the consistency and accuracy of folding; at the same time, the flattening component presses and flattens the non-woven bag to be folded, effectively avoiding problems such as wrinkles, unevenness, and fluffy bag body before folding.

[0019] In this invention, the design of the extrusion assembly enables the nonwoven bag to be extruded and folded quickly and effectively. By driving the mounting frame and pressing rod with a cylinder, the nonwoven bag can be moved from the first positioning groove into the extrusion chamber to complete the bending. Through the cooperation of the fixing plate and the abutting inclined surface, the separation and tight contact of the first moving seat and the second moving seat are realized, thereby completing the extrusion and folding of the bent nonwoven bag.

[0020] In this invention, by setting a clearance groove and a second transmission belt, the non-woven bag after being squeezed and folded is quickly discharged. The baffle on the second transmission belt can further push the folded non-woven bag, ensuring the continuity and efficiency of production.

[0021] This invention features a simple folding device that is easy to operate, maintain, and adjust. The components are tightly fitted together, ensuring stable and reliable operation. It meets the actual needs of non-woven bag production, improving production efficiency and product quality.

[0022] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention;

[0025] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of an embodiment of the present invention;

[0026] Figure 3 This is a top view of an embodiment of the present invention.

[0027] Figure 4 This is a schematic diagram of the fixing base structure according to an embodiment of the present utility model;

[0028] Figure 5 This is a schematic diagram of the movable seat structure according to an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the leveling component structure according to an embodiment of the present invention.

[0030] In the diagram: 1. Workbench; 2. Fixed seat; 3. First conveyor belt; 4. Positioning plate; 5. First movable seat; 6. Second movable seat; 7. Fixed frame; 8. First positioning groove; 9. Second positioning groove; 10. Limiting groove; 11. Fixed rod; 12. Moving block; 13. Pressing roller; 14. First spring; 15. Extrusion chamber; 16. Relief groove; 17. Limiting guide rod; 18. Second spring; 19. Fixed plate; 20. Abutting slope; 21. Mounting frame; 22. Pressing rod; 23. Positioning rod; 24. Limiting bracket; 25. Limiting slide groove; 26. Cylinder; 27. Second transmission belt; 28. Pulley. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] In the description of this utility model, it should be understood that the terms "opening", "upper", "middle", "length", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] To keep the following description of the embodiments of this utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0034] Example 1: Please refer to Figures 1-6 As shown, this embodiment provides a folding device, including:

[0035] A workbench 1 has a fixed base 2 fixedly mounted on its top for supporting and positioning the nonwoven bag. A first movable base 5 and a second movable base 6 are slidably disposed on the top of the workbench 1. Both movable bases are located on one side of the fixed base 2 and cooperate with it to complete the folding operation of the nonwoven bag. The gap between the first movable base 5 and the second movable base 6 forms a compression cavity 15. When the nonwoven bag is placed between these two movable bases, it can be compressed and folded through the compression cavity 15.

[0036] Two positioning plates 4 are fixedly installed on the top of the fixed base 2, forming a second positioning groove 9 between the two positioning plates 4. Simultaneously, grooves are formed on the tops of both the first movable base 5 and the second movable base 6, and these two grooves cooperate to form a first positioning groove 8. The first positioning groove 8 and the second positioning groove 9 cooperate to precisely position the non-woven bag to be folded, ensuring the accuracy and consistency of the folding.

[0037] To achieve the folding of the nonwoven bag, this embodiment also includes a compression assembly. The compression assembly includes two limiting brackets 24 fixedly installed on the top of the workbench 1, each of which has a limiting groove 25 on one side. A mounting frame 21 is slidably mounted on one side of the two limiting brackets 24, and the mounting frame 21 is slidably connected to the inner wall of the corresponding limiting groove 25 via two positioning rods 23 fixedly installed on one side. Two cylinders 26 are fixedly embedded in the top of the workbench 1, and one end of the piston rod of each cylinder 26 is fixedly connected to the bottom of the mounting frame 21. By controlling the extension and retraction of the cylinders 26, the mounting frame 21 can be moved up and down. A pressing rod 22 is fixedly installed on one side of the mounting frame 21. When the mounting frame 21 descends, the pressing rod 22 can push the nonwoven bag located in the first positioning groove 8 into the compression chamber 15, causing it to bend.

[0038] In this embodiment, the extrusion assembly also includes a fixing plate 19 fixedly installed on one side of the first movable seat 5 and the second movable seat 6. Both fixing plates 19 have abutment slopes 20 on their tops. When the pressing rod 22 descends, the abutment slopes 20 cooperate with the mounting frame 21 to separate the first movable seat 5 and the second movable seat 6, thus providing space for bending the non-woven bag. Multiple limiting guide rods 17 are fixedly installed on the opposite sides of the first movable seat 5 and the second movable seat 6. These limiting guide rods 17 are arranged in pairs and slide through the fixing frame 7 fixedly installed on the top of the workbench 1. A second spring 18 is sleeved on the outer wall of the limiting guide rod 17. One end of the second spring 18 is fixedly connected to one side of the adjacent first movable seat 5 or second movable seat 6, and the other end is fixedly connected to one side of the adjacent fixing frame 7. When the pressing rod 22 rises to disengage from the extrusion chamber 15, the elastic force of the second spring 18 causes the first movable seat 5 and the second movable seat 6 to move closer together, thereby completing the extrusion and folding of the bent non-woven bag.

[0039] In addition, to improve the folding effect, this embodiment also includes a flattening assembly. The flattening assembly includes a limiting groove 10 formed on one side of the two positioning plates 4 that are close to each other, and a fixing rod 11 is fixedly installed inside the limiting groove 10. A movable block 12 is sleeved on the outer wall of the fixing rod 11, and the movable block 12 is slidably connected to the inner wall of the corresponding limiting groove 10. A pressing roller 13 is rotatably connected between the two movable blocks 12, and the pressing roller 13 is used to press and flatten the non-woven bag to be folded. A first spring 14 is also sleeved on the outer wall of the fixing rod 11. One end of the first spring 14 is fixedly connected to the top of the adjacent movable block 12, and the other end is fixedly connected to the top inner wall of the corresponding limiting groove 10. Through the elastic force of the first spring 14, a downward force can be continuously applied to the pressing roller 13, thereby ensuring the flattening effect of the non-woven bag.

[0040] This application can be used in the field of nonwoven bag processing technology, or in other fields applicable to this application.

[0041] Example 2: Reference Figure 1 , 5 6. Improvement based on Example 1: A folding device for nonwoven bags, which is applied to the field of nonwoven bag processing technology;

[0042] To facilitate the input of non-woven bags, a first conveyor belt 3 is provided on the top of the fixed base 2. The first conveyor belt 3 cooperates with the pressing roller 13 to transport the non-woven bags to be folded into the device for folding.

[0043] To discharge the folded nonwoven bags, a clearance groove 16 is provided at the bottom of the first movable seat 5 and the second movable seat 6, and the clearance groove 16 is located below the extrusion chamber 15. A second transmission belt 27 is provided in the clearance groove 16 and is installed on the top of the worktable 1 for discharging the extruded and folded nonwoven bags.

[0044] Furthermore, both the first conveyor belt 3 and the second transmission belt 27 are driven by corresponding motors to ensure their normal operation.

[0045] To facilitate discharge, multiple baffles 28 are fixedly installed on the surface of the conveyor belt of the second transmission belt 27. These baffles 28 can push the folded non-woven bags to be discharged smoothly.

[0046] However, as is well known to those skilled in the art, the working principles and wiring methods of the first conveyor belt 3, the cylinder 26, and the second transmission belt 27 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0047] The usage process and working principle of this utility model technical solution are as follows:

[0048] In use, the user can connect the power supply and start the first conveyor belt 3 and the second transmission belt 27. Then, the user can place the non-woven bag to be folded into the second positioning groove 9. The first conveyor belt 3 can complete the conveying of the non-woven bag. During the conveying process, it is ensured that the non-woven bag can move under the pressing roller 13. Then, with the cooperation of the pressing roller 13 and the first conveyor belt 3, the non-woven bag to be folded can be pressed and flattened to ensure a good folding effect. After being pressed and flattened, the non-woven bag will be moved into the first positioning groove 8 by the positioning of the two positioning plates 4. Until it is completely separated from the first conveyor belt 3; when the nonwoven bag moves into the first positioning groove 8, it is located below the pressing rod 22. Then, the user can control the cylinder 26 to drive the mounting frame 21 to descend, and the pressing rod 22 will also descend synchronously, pressing the middle of the nonwoven bag; as the mounting frame 21 descends, the mounting frame 21 will abut against the two fixing plates 19 through the two abutting inclined surfaces 20, thereby driving the first moving seat 5 and the second moving seat 6 to complete the separation. At this time, a certain gap is generated between the first moving seat 5 and the second moving seat 6. The gap is the squeezing chamber 15; when the pressing rod 22 presses the non-woven bag, it presses it into the squeezing chamber 15, and because the squeezing chamber 15 is narrow, the pressing rod 22 can ensure that the non-woven bag bends into the squeezing chamber 15; when the non-woven bag is completely inside the squeezing chamber 15, the user can control the pressing rod 22 to rise again; when the pressing rod 22 is disengaged from the squeezing chamber 15, at this time, under the action of multiple second springs 18 on both sides, the first moving seat 5 and the second moving seat 6 can quickly approach and complete the squeezing and folding of the non-woven fabric between them, forming a crease, and ensuring... To ensure good folding effect, when a new batch of non-woven bags arrives, the pressing rod 22 will press down again to complete the pressing of the new non-woven bags. At this time, the first moving seat 5 and the second moving seat 6 will open again. The non-woven bags that have been squeezed and folded will fall to the bottom of the squeezing chamber 15 and come into contact with the second transmission belt 27. The second transmission belt 27 and the deflector 28 on its surface can push out the non-woven bags that have been folded in the previous round, which the user can then collect. At the same time, a new round of processing will continue, which is conducive to the continuous folding processing of non-woven bags.

[0049] It should be noted that in the description of this specification, descriptions such as "first" and "second" are only used to distinguish the features and do not have any actual order or directional meaning. This application is not limited to this.

[0050] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0051] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An apparatus for folding nonwoven fabric bags, characterized by comprising: Include: Workbench (1), the top of the workbench (1) is fixedly installed with a fixed seat (2), the top of the workbench (1) is slidably provided with a first moving seat (5) and a second moving seat (6), the first moving seat (5) and the second moving seat (6) are located on one side of the fixed seat (2) and are matched with the fixed seat (2), the gap between the first moving seat (5) and the second moving seat (6) forms an extrusion cavity (15), and the extrusion cavity (15) is used for extruding non-woven fabric bag to make it fold; The top of the fixed seat (2) is fixedly installed with two positioning plates (4), and a second positioning groove (9) is formed between the two positioning plates (4), the top of the first moving seat (5) and the second moving seat (6) is provided with a groove, and the two grooves are matched to form a first positioning groove (8), the first positioning groove (8) and the second positioning groove (9) are matched with each other, and are used for positioning the non-woven fabric bag to be folded; It also includes an extrusion assembly, which is used for pressing the non-woven fabric bag above the first moving seat (5) and the second moving seat (6) to the first moving seat (5) and the second moving seat (6), and completing extrusion folding; It also includes a leveling assembly, which is used for pressing and leveling the non-woven fabric bag before folding.

2. An apparatus for folding nonwoven bags as claimed in claim 1, wherein The extrusion assembly includes two limiting supports (24) fixedly installed on the top of the workbench (1), limiting sliding grooves (25) are formed on one side of the two limiting supports (24), the same mounting frame (21) is slidably arranged on one side of the two limiting supports (24), two positioning rods (23) are fixedly installed on one side of the mounting frame (21), the two positioning rods (23) are slidably connected with the inner walls of the corresponding limiting sliding grooves (25), two air cylinders (26) are fixedly embedded on the top of the workbench (1), the piston rods of the two air cylinders (26) are fixedly connected with the bottom of the mounting frame (21), a pressing rod (22) is fixedly installed on one side of the mounting frame (21), and the pressing rod (22) is used for pushing the non-woven fabric bag in the first positioning groove (8) into the extrusion cavity (15) to make it bend.

3. An apparatus for folding nonwoven bags as claimed in claim 1, wherein The extrusion assembly further comprises fixed plates (19) fixedly installed on one side of the first moving seat (5) and the second moving seat (6), the top of each of the two fixed plates (19) is provided with an abutting inclined surface (20), the two abutting inclined surfaces (20) are close to each other, each of the two fixed plates (19) is matched with a mounting frame (21) through the corresponding abutting inclined surface (20), and the first moving seat (5) and the second moving seat (6) are separated when the pressing rod (22) is lowered; a plurality of limiting guide rods (17) are fixedly installed on the side, away from each other, of the first moving seat (5) and the second moving seat (6), the plurality of limiting guide rods (17) are grouped into pairs, a plurality of fixed frames (7) are fixedly installed on the top of the workbench (1), one end of each of the two limiting guide rods (17) in the same group is slidably penetrated through the corresponding fixed frame (7), the outer wall of each of the plurality of limiting guide rods (17) is sleeved with a second spring (18), one end of each of the plurality of second springs (18) is fixedly connected with one side of the adjacent first moving seat (5) and second moving seat (6), the other end of each of the plurality of second springs (18) is fixedly connected with one side of the adjacent fixed frame (7), and the plurality of second springs (18) are used to make the first moving seat (5) and the second moving seat (6) close to and abut against each other after the pressing rod (22) rises to be separated from the extrusion cavity (15), so as to extrude and fold the folded non-woven fabric bag.

4. The apparatus of claim 1 wherein, The bottom of each of the first moving seat (5) and the second moving seat (6) is provided with a groove, the two grooves are matched and form a giving slot (16), the giving slot (16) is located below the extrusion cavity (15), a second transmission belt (27) is arranged in the giving slot (16), the second transmission belt (27) is installed on the top of the workbench (1), and the second transmission belt (27) is used to discharge the extruded and folded non-woven fabric bag.

5. The apparatus of claim 1 wherein, The flattening assembly comprises limiting grooves (10) formed on the side, close to each other, of the two positioning plates (4), a fixed rod (11) is fixedly installed in the inside of each of the two limiting grooves (10), the outer wall of each of the two fixed rods (11) is sleeved with a moving block (12), each of the two moving blocks (12) is slidably connected with the inner wall of the corresponding limiting groove (10), the same pressing roller (13) is rotatably connected between the two moving blocks (12), the two pressing rollers (13) are used to press and flatten the non-woven fabric bag to be folded, the outer wall of each of the two fixed rods (11) is sleeved with a first spring (14), one end of each of the two first springs (14) is fixedly connected with the top of the adjacent moving block (12), and the other end of each of the two first springs (14) is fixedly connected with the top inner wall of the corresponding limiting groove (10), so as to continuously apply a downward force to the pressing roller (13).

6. An apparatus for folding nonwoven bags as claimed in claim 5, wherein The top of the fixed seat (2) is provided with a first conveying belt (3), the first conveying belt (3) is matched with the pressing roller (13), and is used to convey the non-woven fabric bag to be folded.

7. An apparatus for folding nonwoven bags as defined in claim 4, wherein The second transmission belt (27) is fixedly installed with a plurality of push plates (28) on the conveying belt surface, and the plurality of push plates (28) are used for pushing out the folded non-woven fabric bag.