Woven bag pressing mechanism

Abstract

The utility model provides a kind of woven bag pressing mechanism, comprising: conveyor belt, conveyor belt is used to convey target object;Compression roller assembly, compression roller assembly movably is set above conveyor belt, compression roller assembly has support part and at least two rolling parts, each rolling part is spaced along the circumference of support part, and rolling part is rotatably set relative to support part, by setting compression roller assembly has support part and at least two rolling parts rotatable relative to support part, replace traditional integral forming compression roller, so that in the process of pressing bag, each rolling part can independently rotate according to the local speed of contact point with woven bag.The scheme effectively reduces the overall frictional resistance between compression roller and woven bag in conveying, especially when there is instantaneous difference between the speed of conveyor belt and the overall rotational speed of compression roller assembly, significantly reduces the risk of woven bag damage due to excessive friction, improves packaging quality and reliability.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, specifically to a woven bag pressing mechanism. Background Technology

[0002] In the production and logistics processes of industries such as chemicals, building materials, grains, feed, and plastic granules, woven bags are commonly used as packaging containers for the quantitative packaging and transportation of powdery, granular, or small lump materials. To improve packaging efficiency, reduce transportation space, and prevent material leakage or packaging damage during transportation, the pressing process has become an indispensable part of the packaging workflow.

[0003] In the pressing process of the transmission, woven bags carrying materials are usually conveyed on a conveyor belt and pressed sequentially by the pressing mechanism. However, during the pressing process, since the pressure roller is integrally formed, the woven bags are easily damaged due to excessive friction between the woven bags and the pressure roller during the conveyor belt conveying process, which affects the packaging quality.

[0004] Therefore, existing technologies need further development. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a woven bag pressing mechanism to solve the technical problem in the related technology that, during the pressing process, the pressure roller is integrally formed, and the excessive friction between the woven bag and the pressure roller during the conveyor belt transportation process can easily lead to damage to the woven bag and affect the packaging quality.

[0006] To achieve the above technical objectives, the present invention adopts the following technical solution: a woven bag pressing mechanism is provided, comprising: a conveyor belt for conveying a target object; a pressure roller assembly, the pressure roller assembly being movably disposed above the conveyor belt, the pressure roller assembly having a support portion and at least two rolling portions, each rolling portion being spaced apart along the periphery of the support portion, and the rolling portions being rotatably disposed relative to the support portion.

[0007] Furthermore, the pressure roller assembly includes: two support plates, which are coaxial and spaced apart; and at least two rollers, each of which is rotatably arranged and spaced apart along the periphery of the support plates.

[0008] Furthermore, the woven bag pressing mechanism also includes a drive assembly, which is drivenly connected to the support portion to drive the support portion to rotate.

[0009] Furthermore, the drive assembly includes: a drive member; a transmission member, the support portion being connected to the output end of the transmission member, and the drive member being drivenly connected to the input end of the transmission member, so that the drive member drives the support portion and the rolling portion to rotate via the transmission member. Furthermore, the woven bag pressing mechanism also includes: a pressing assembly, at least a portion of which is located above the conveyor belt, a pressure roller assembly rotatably disposed relative to the pressing assembly, and a drive assembly mounted on the pressing assembly. The pressing assembly is used to drive the pressure roller assembly to apply pressure to the target object on the conveyor belt.

[0010] Furthermore, the pressing assembly includes: a first gantry frame, at least a portion of which is located above the conveyor belt; a frame body movably mounted on the first gantry frame, a drive unit mounted on the frame body, and a support portion rotatably mounted on the frame body.

[0011] Furthermore, the pressing assembly also includes: a second gantry frame, which is spaced apart from the first gantry frame along the conveying direction of the conveyor belt; and a first spring, whose two ends are respectively connected to the frame and the second gantry frame.

[0012] Furthermore, the pressing assembly also includes: a first connecting rod, which is mounted on the frame; a connector, which is rotatably connected to the first connecting rod; a limiting rod, one end of which is connected to the connector, and the other end of which passes through the second gantry in a vertical direction and protrudes from the second gantry, and the limiting rod is provided with a first threaded section; and a first adjusting nut, the two ends of which are respectively connected to the second gantry and the first adjusting nut, and the first adjusting nut is threadedly engaged with the first threaded section, so that the spring force of the first spring can be adjusted by moving the first adjusting nut along the extension direction of the first threaded section.

[0013] Furthermore, the pressing assembly also includes: a second threaded section on the limiting rod, the second threaded section being located above the second gantry; a second adjusting nut, the second adjusting nut being threadedly engaged with the second threaded section to allow the first adjusting nut to move along the extension direction of the first threaded section; and a second spring, the two ends of the second spring being connected to the second adjusting nut and the second gantry, respectively.

[0014] Beneficial effects:

[0015] 1. By designing the pressure roller assembly with a support section and at least two rolling sections that can rotate relative to the support section, the traditional one-piece molded pressure roller is replaced. This allows each rolling section to rotate independently according to the local speed at its contact point with the woven bag during the pressing process. This solution effectively reduces the overall frictional resistance between the pressure roller and the woven bag during conveying, especially when there is an instantaneous difference between the conveyor belt speed and the overall rotational speed of the pressure roller assembly. It significantly reduces the risk of damage to the woven bag due to excessive friction, thereby improving packaging quality and reliability.

[0016] 2. By setting a drive component to drive the support part to rotate, the entire pressure roller assembly can rotate actively, and its linear speed can be matched with the speed of the conveyor belt. This solution actively drives the pressure roller assembly to rotate, reducing the relative speed difference between it and the woven bags moving on the conveyor belt. This reduces frictional heat and wear as a whole. Together with the independent rotation function of the rolling part, it ensures the smoothness of the pressing process and the integrity of the woven bags.

[0017] 3. By setting up a lowering assembly and rotatably mounting the pressure roller assembly on it, while simultaneously installing the drive assembly on the lowering assembly, the overall lifting and lowering of the pressure roller assembly and its drive device is achieved. This scheme allows the pressure roller assembly to move downwards as needed via the lowering assembly, applying the required compression force to the woven bags on the conveyor belt to complete the compression process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the woven bag pressing mechanism used in this embodiment of the utility model;

[0019] Figure 2 This is a first-view structural schematic diagram of the woven bag pressing mechanism used in an embodiment of this utility model.

[0020] The above figures include the following reference numerals:

[0021] 1. Pressure roller assembly; 2. Support plate; 3. Roller; 4. Drive assembly; 5. Drive component; 6. Transmission component; 7. Conveyor belt; 8. Pressing assembly; 9. First gantry frame; 10. Frame body; 11. Second gantry frame; 12. First spring; 13. First connecting rod; 14. Connecting component; 15. Limiting rod; 16. First adjusting nut; 17. First washer; 18. First limiting nut; 19. Second adjusting nut; 20. Second spring; 21. Second washer; 22. Second limiting nut. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0023] According to an embodiment of this utility model, in order to solve the problem that during the pressing process, because the pressure roller is integrally formed, excessive friction between the woven bag and the pressure roller can easily lead to damage to the woven bag during the conveyor belt transport process (this is more likely to occur when the conveyor belt speed and the pressure roller speed are inconsistent), thus affecting the packaging quality, a woven bag pressing mechanism is provided. Please refer to [link to relevant documentation]. Figures 1 to 2 It includes: a conveyor belt 7 for conveying a target object; and a pressure roller assembly 1, which is movably disposed above the conveyor belt 7. The pressure roller assembly 1 has a support portion and at least two rolling portions, each rolling portion being spaced apart along the periphery of the support portion and being rotatably disposed relative to the support portion.

[0024] By adopting the above technical solution, the pressure roller assembly 1 is equipped with a support portion and at least two rolling portions that can rotate relative to the support portion, replacing the traditional one-piece molded pressure roller. This allows each rolling portion to rotate independently according to the local speed at its contact point with the woven bag during the pressing process. This solution effectively reduces the overall frictional resistance between the pressure roller and the woven bag during conveying, especially when there is an instantaneous difference between the speed of the conveyor belt 7 and the overall rotational speed of the pressure roller assembly 1. This significantly reduces the risk of damage to the woven bag due to excessive friction, thereby improving packaging quality and reliability.

[0025] Please refer to Figure 1 The pressure roller assembly 1 includes: two support plates 2, which are coaxial and spaced apart; at least two rollers 3, each roller 3 is rotatably arranged, each roller 3 is spaced apart along the periphery of the support plates 2, and each roller 3 is rotatably connected to the two support plates at both ends.

[0026] Two support plates 2 form a support section; and each roller 3 forms a rolling section.

[0027] By adopting the above technical solution, and specifically setting two spaced coaxial support plates 2 as support parts, and at least two independently rotatable rollers 3 installed around the periphery of the support plates 2 as rolling parts, a split, multi-roller pressure roller structure is formed. This solution not only realizes the independent rotation function of the rolling parts, but also disperses the pressing pressure through the spaced rollers 3, avoiding pressure concentration and further reducing the possibility of woven bags being damaged due to excessive friction at a single contact point.

[0028] Please refer to Figure 2 The woven bag pressing mechanism also includes a drive assembly 4, which is connected to the support unit to drive the support unit to rotate.

[0029] By adopting the above technical solution, the drive assembly 4 drives the support part (i.e., the two support plates 2) to rotate, enabling the entire pressure roller assembly 1 to rotate actively, and its linear speed can match the speed of the conveyor belt 7. This solution actively drives the pressure roller assembly 1 to rotate, reducing the relative speed difference between it and the woven bags moving on the conveyor belt 7, thereby reducing frictional heat generation and wear as a whole. Together with the independent rotation function of the rolling part, it ensures the smoothness of the pressing process and the integrity of the woven bags.

[0030] Please refer to Figure 1 The drive assembly 4 includes: a drive member 5; a transmission member 6, a support part connected to the output end of the transmission member 6, and a drive member 5 connected to the input end of the transmission member 6, so that the drive member 5 drives the support part and the rolling part to rotate through the transmission member 6.

[0031] By adopting the above technical solution, and by setting up the driving component 5 and the transmission component 6, the power of the driving component 5 is reliably transmitted to the support part, thereby driving the support part and the roller 3 installed on it to rotate as a whole. This solution provides a stable and controllable power source for the active rotation of the pressure roller assembly 1, ensuring that its rotation speed can be set and adjusted according to the speed of the conveyor belt 7.

[0032] Furthermore, the driving component 5 is a motor.

[0033] Specifically, the transmission component 6 includes: a first sprocket, which is installed at the output end of the drive component 5 so as to drive the first sprocket to rotate through the drive component 5; a second sprocket, which is spaced apart from the first sprocket; and a chain, which is sleeved on the first sprocket and the second sprocket so that when the first sprocket rotates, the second sprocket is driven to rotate through the chain.

[0034] Furthermore, the second sprocket is connected to one of the support plates 2 so that the first sprocket can be driven to rotate by a motor, which in turn drives the second sprocket to rotate via a chain, thereby causing the support plate 2 to rotate and thus driving each roller 3 to rotate.

[0035] By adopting the above technical solution, specifically using a sprocket and chain mechanism as the transmission component 6, and connecting the second sprocket to one of the support plates 2, efficient and reliable power transmission from the drive component 5 to the support plate 2 is achieved. This solution has a simple structure, a stable transmission ratio, and can withstand the working load of the pressure roller, ensuring the smooth rotation of the support plate 2 and the roller 3 as a whole, and helping to maintain synchronization with the speed of the conveyor belt 7.

[0036] Please refer to Figure 1 The woven bag pressing mechanism further includes: a pressing assembly 8, at least a portion of which is located above the conveyor belt 7; a pressure roller assembly 1 rotatably disposed relative to the pressing assembly 8; and a drive assembly 4 mounted on the pressing assembly 8. The pressing assembly 8 is used to drive the pressure roller assembly 1 to apply pressure to the target object on the conveyor belt 7.

[0037] The target object is a woven bag containing materials.

[0038] By adopting the above technical solution, and by setting up a pressing component 8 and rotatably mounting the pressure roller assembly 1 on it, while simultaneously installing the drive component 4 on the pressing component 8, the overall lifting and lowering of the pressure roller assembly 1 and its drive device is achieved. This solution allows the pressure roller assembly 1 to move downwards via the pressing component 8 as needed, applying the required pressing force to the woven bags on the conveyor belt 7 to complete the pressing process.

[0039] Please refer to Figure 1 and Figure 2 The pressing assembly 8 includes: a first gantry 9, at least a portion of which is located above the conveyor belt 7; a frame 10, which is movably mounted on the first gantry 9, a drive unit 5 is mounted on the frame 10, and a support is rotatably mounted on the frame 10.

[0040] By adopting the above technical solution, a first gantry 9 spanning the conveyor belt 7 is set up, and a movable frame 10 is set on it. The drive component 5 and the support part are both installed on the frame 10, providing a stable mounting base for the pressure roller assembly 1 and the drive assembly 4, and allowing the whole assembly to move relative to the first gantry 9. This solution has a stable structure, ensuring the smooth execution of the pressing action.

[0041] Furthermore, the frame 10 is composed of a first swing rod, a rotating shaft, and a second swing rod connected in sequence. The first swing rod and the second swing rod are arranged opposite to each other. The rotating shaft is rotatably mounted on the first gantry frame. Two support plates 2 are rotatably mounted on opposite sides of the first swing rod and the second swing rod, so that the first swing rod, the second swing rod, the two support plates 2 and each roller 3 can swing by rotating the rotating shaft.

[0042] By adopting the above technical solution, and designing the frame 10 as consisting of a first swing rod and a second swing rod connected by a rotating shaft, and rotatably mounting two support plates 2 on the two swing rods respectively, the entire pressure roller assembly 1 (including the support plates 2 and the roller 3) can swing around the rotating shaft as a fulcrum. This solution allows the pressure roller assembly 1 to better adapt to the undulations of the woven bag surface during pressing, providing a more uniform pressure distribution. At the same time, its swinging motion itself also has a certain buffering effect, helping to reduce impact.

[0043] Please refer to Figure 1 and Figure 2 The pressing assembly 8 also includes: a second gantry 11, which is spaced apart from the first gantry 9 along the conveying direction of the conveyor belt 7; and a first spring 12, whose two ends are respectively connected to the frame 10 and the second gantry 11.

[0044] By adopting the above technical solution, a second gantry 11 spaced apart from the first gantry 9 is set up, and a first spring 12 is connected between the frame 10 and the second gantry 11, providing elastic support for the frame 10 (and the pressure roller assembly 1 on it). This solution utilizes the elastic force of the first spring 12 to assist in providing downward pressure on the one hand, and to play a buffering role when the pressure roller assembly 1 encounters local protrusions or thickness changes in the woven bag on the other hand, thus avoiding rigid impact damage to the woven bag.

[0045] Please refer to Figure 2 The pressing assembly 8 further includes: a first connecting rod 13, which is mounted on the frame 10; a connector 14, which is rotatably connected to the first connecting rod 13; a limiting rod 15, one end of which is connected to the connector 14, and the other end of which passes through the second gantry frame 11 in a vertical direction and protrudes from the second gantry frame 11, and the limiting rod 15 is provided with a first threaded section; and a first adjusting nut 16, the two ends of the first spring 12 are respectively connected to the second gantry frame 11 and the first adjusting nut 16, the first adjusting nut 16 is threadedly engaged with the first threaded section, so that the spring force of the first spring 12 can be adjusted by moving the first adjusting nut 16 along the extension direction of the first threaded section.

[0046] By adopting the above technical solution, and by setting up a first connecting rod 13, a connecting piece 14, a limiting rod 15, and a first adjusting nut 16, and connecting one end of the first spring 12 to the first adjusting nut 16, the initial preload of the first spring 12 can be adjusted. This solution changes the tension or compression state of the first spring 12 by rotating the first adjusting nut 16 to move it up and down along the first threaded section of the limiting rod 15, thereby precisely adjusting the initial downward pressure applied by the pressure roller assembly 1 to the woven bag to adapt to different materials or packaging requirements.

[0047] It should be noted that the connector 14 is provided with a rotation space, and the first connecting rod 13 is rotatably disposed in the rotation space (not shown in the figure). The first connecting rod 13 and the connector 14 are separated in the figure to make the structure of the first connecting rod 13 and the connector 14 more intuitive. In actual use, the first connecting rod 13 is connected to the connector 14 through a rotating rod. The rotating rod passes through the first connecting rod 13, and both ends of the rotating rod are connected to the connector 14.

[0048] Furthermore, two first washers 17 are fitted onto the limiting rod 15, and the two first washers 17 respectively abut against the two ends of the first spring 12. Furthermore, a first limiting nut 18 is also provided on the first threaded section, and the first limiting nut 18 is threadedly engaged with the first threaded section to limit the first adjusting nut 16.

[0049] By adopting the above technical solution, and by setting two first washers 17 on the limiting rod 15 to abut against both ends of the first spring 12 respectively, and by setting a first limiting nut 18 to cooperate with the first threaded section, the position of the first adjusting nut 16 is locked. In this solution, the first washers 17 provide a flat force-bearing surface, protecting the end of the spring and improving the force distribution; the first limiting nut 18 can lock the first adjusting nut 16 after its position is adjusted, preventing the first adjusting nut 16 from loosening during vibration or operation, thus preventing changes in preload and ensuring stable downward pressure.

[0050] Please refer to Figure 2 The pressing assembly 8 also includes: a second threaded section on the limiting rod 15, the second threaded section being located above the second gantry 11; a second adjusting nut 19, the second adjusting nut 19 being threadedly engaged with the second threaded section to allow the first adjusting nut 16 to move along the extension direction of the first threaded section; and a second spring 20, the two ends of the second spring 20 being connected to the second adjusting nut 19 and the second gantry 11 respectively.

[0051] By adopting the above technical solution, a second threaded section and a second adjusting nut 19 are provided on the limiting rod 15 above the second gantry 11, and a second spring 20 is provided between the second adjusting nut 19 and the second gantry 11, providing a two-stage elastic buffer and adjustment function for the pressing system. This solution allows adjustment of the preload of the second spring 20 by turning the second adjusting nut 19, providing auxiliary elastic support when the pressure roller assembly 1 encounters a large impact or requires additional buffering (e.g., at the start of pressing or when encountering a large protrusion), further protecting the woven bag from damage caused by excessive impact.

[0052] Furthermore, two second washers 21 are fitted onto the limiting rod 15, and the two second washers 21 respectively abut against the two ends of the second spring 20. Furthermore, the second threaded section is also provided with a second limiting nut 22, which is threadedly engaged with the second threaded section to limit the second adjusting nut 19.

[0053] By adopting the above technical solution, and by setting two second washers 21 on the limiting rod 15 to abut against both ends of the second spring 20 respectively, and by setting a second limiting nut 22 to cooperate with the second threaded section, the position of the second adjusting nut 19 is locked. In this solution, the function of the second washer 21 is the same as that of the first washer 17, protecting the spring and improving the force distribution; the second limiting nut 22 is used to lock the position of the second adjusting nut 19, preventing it from loosening, and ensuring the stability of the preload of the second spring 20 and the reliability of the buffering function.

[0054] Working principle:

[0055] First, the operator adjusts the preload of the first spring 12 and the second spring 20 by turning the first adjusting nut 16 and the second adjusting nut 19, respectively, to precisely adjust the initial downward pressure and buffering capacity of the pressure roller assembly 1 on the woven bag. Then, the drive component 5 (such as a motor) of the drive assembly 4 is started. The motor drives the support part (i.e., the two support plates 2) to rotate as a whole through the transmission component 6 (including sprockets and chains), so that the revolution linear speed of the pressure roller assembly 1 is synchronized with the speed of the conveyor belt 7. When the woven bag filled with material is sent into the pressing station by the conveyor belt 7, the pressing component 8 drives the frame 10 to move down, causing the pressure roller assembly 1 to contact the woven bag. The bag surface is pressed, during which the support plate 2 continues to revolve, while multiple rollers 3 installed around the support plate 2 rotate independently according to the local speed of the contact point with the woven bag, effectively dispersing pressure and significantly reducing friction. During the pressing process, the frame 10, composed of the first swing rod, the rotating shaft and the second swing rod, enables the pressure roller assembly 1 to adapt to the undulations of the woven bag surface, while the first spring 12 and the second spring 20 provide elastic buffering to absorb the impact. After the pressing is completed, the pressing assembly 8 drives the frame 10 and the pressure roller assembly 1 to lift, and the compacted finished woven bag is output by the conveyor belt 7, and the mechanism resets to enter the next working cycle.

[0056] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0057] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0058] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0059] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0060] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A woven bag pressing mechanism, characterized in that, include: Conveyor belt (7), the conveyor belt (7) is used to transport the target object; The pressure roller assembly (1) is movably disposed above the conveyor belt (7). The pressure roller assembly (1) has a support portion and at least two rolling portions, each of the rolling portions being spaced apart along the periphery of the support portion and being rotatably disposed relative to the support portion.

2. The woven bag pressing mechanism according to claim 1, characterized in that, The pressure roller assembly (1) includes: Two support plates (2) are coaxial and spaced apart; At least two rollers (3) are provided, each of which is rotatably arranged and is spaced apart along the periphery of the support plate (2).

3. The woven bag pressing mechanism according to claim 1, characterized in that, The woven bag pressing mechanism further includes a drive assembly (4), which is drivenly connected to the support portion to drive the support portion to rotate.

4. The woven bag pressing mechanism according to claim 3, characterized in that, The driving component (4) includes: Drive component (5); Transmission component (6), the support part is connected to the output end of the transmission component (6), and the driving component (5) is driven to the input end of the transmission component (6), so that the driving component (5) drives the support part and the rolling part to rotate through the transmission component (6).

5. The woven bag pressing mechanism according to claim 4, characterized in that, The woven bag pressing mechanism further includes: a pressing assembly (8), at least a portion of which is located above the conveyor belt (7), a pressure roller assembly (1) which is rotatably disposed relative to the pressing assembly (8), a drive assembly (4) which is mounted on the pressing assembly (8), and the pressing assembly (8) which is used to drive the pressure roller assembly (1) to apply pressure to the target object on the conveyor belt (7).

6. The woven bag pressing mechanism according to claim 5, characterized in that, The pressing component (8) includes: A first gantry (9) is positioned above the conveyor belt (7), at least a portion of which is located above the conveyor belt (7). The frame (10) is movably mounted on the first gantry (9), the drive unit (5) is mounted on the frame (10), and the support is rotatably mounted on the frame (10).

7. The woven bag pressing mechanism according to claim 6, characterized in that, The pressing component (8) also includes: The second gantry (11) and the first gantry (9) are spaced apart along the conveying direction of the conveyor belt (7); The first spring (12) is connected at both ends to the frame (10) and the second gantry (11), respectively.

8. The woven bag pressing mechanism according to claim 7, characterized in that, The pressing component (8) also includes: The first link (13) is mounted on the frame (10); A connector (14) is rotatably connected to the first connecting rod (13); A limiting rod (15) is provided. One end of the limiting rod (15) is connected to the connecting piece (14). The other end of the limiting rod (15) passes through the second gantry frame (11) in the vertical direction and protrudes from the second gantry frame (11). The limiting rod (15) is provided with a first threaded section. The first adjusting nut (16) is connected to the second gantry (11) and the first adjusting nut (16) at both ends. The first adjusting nut (16) is threadedly engaged with the first threaded section so that the spring force of the first spring (12) can be adjusted by moving the first adjusting nut (16) along the extension direction of the first threaded section.

9. The woven bag pressing mechanism according to claim 8, characterized in that, The pressing assembly (8) further includes: a second threaded section is provided on the limiting rod (15), and the second threaded section is located above the second gantry (11); The second adjusting nut (19) is threadedly engaged with the second threaded section to allow the first adjusting nut (16) to move along the extension direction of the first threaded section; The second spring (20) is connected at both ends to the second adjusting nut (19) and the second gantry (11), respectively.

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