An automated production line for woven bags

Abstract

The present invention relates to the technical field of woven bag production, and specifically to an automated production line for woven bags, comprising a machine base, a winding section, and a cutting and flattening mechanism, wherein the winding section is disposed on the machine base, is rotatable about a first axis, and is configured to wind up a circular woven fabric base; the cutting and flattening mechanism is disposed on the winding section, and is configured to cut the circular woven fabric base wound up by the winding section from the inside out, and is configured to flatten and collect the cut circular woven fabric base. Thus, on the one hand, continuous transportation of the circular woven fabric base can be achieved, simplifying the process while reducing the frequency of manual intervention; on the other hand, the circular woven fabric base can be continuously cut, flattened, and collected, reducing the occurrence of skewness, wrinkles, and the like, thereby reducing the adverse effects on subsequent handling, sewing, and other processes, and ensuring production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of woven bag production, in particular to an automated production line for woven bags. Background Art

[0002] Woven bags are a type of packaging bag woven from plastic threads, commonly used for packaging and storing various items. They are lightweight, durable, waterproof, easy to clean, environmentally friendly, customizable and printable, and are widely used in food packaging, tourism transportation, engineering material transportation and other fields.

[0003] In the related art, for example, Chinese patent application CN115246251A discloses a method for producing and processing plastic woven bags, which includes the following steps: S1, loading; S2, transmission: the servo motor drives the transmission chain plate to rotate clockwise, the suction cup absorbs the woven bag, and moves with the transmission chain plate. When the woven bag moves under the cutting blade, the servo motor is turned off; S3, cutting: the woven bag is cut by the cutting blade; S4, unloading: after cutting, the servo motor is restarted to drive the woven bag to continue moving through the transmission chain plate and the suction cup.

[0004] However, there are also some problems in the existing woven bag production process: in terms of the cutting process, for woven bags with a soft texture and no need to be sealed, the processing process of the circular woven fabric base needs to go through multiple steps such as conveying to the designated location, cutting, and then conveying the cut semi-finished products away. This operation process is cumbersome and complicated, and the frequency of manual intervention is high, resulting in low production efficiency; at the same time, since the cut semi-finished products are soft in texture, they are very easy to skew and wrinkle during the stacking process, resulting in uneven stacking. This uneven stacking state will have an adverse effect on subsequent handling, sewing and other processes. Summary of the Invention

[0005] Based on this, it is necessary to provide an automated production line for woven bags to address the low efficiency problem in the current woven bag production process.

[0006] The above purpose is achieved through the following technical solutions:

[0007] An automated production line for woven bags, comprising:

[0008] base;

[0009] a winding portion, disposed on the machine base and capable of rotating about a first axis, and configured to be capable of winding a circular woven fabric base;

[0010] The cutting and flattening mechanism is arranged on the winding part and is configured to cut the circular woven fabric base rolled up by the winding part from the inside to the outside, and is configured to flatten and collect the cut circular woven fabric base.

[0011] Furthermore, the winding part includes a mounting seat, which is a strip-shaped structure. The mounting seat is perpendicular to the first axis, and the middle of the mounting seat coincides with the first axis; both ends of the mounting seat are located on the same side and are vertically provided with support strips, the support strips are an arc-shaped structure, and the openings of the two support strips are arranged opposite to each other.

[0012] Furthermore, the cutting and flattening mechanism includes a flattening plate, and two flattening plates are provided on the mounting seat, the plate surface of the flattening plate is parallel to the first axis, the flattening plate is an arc-shaped structure, the openings of the two flattening plates are arranged opposite to each other, and the two flattening plates can elastically slide in a direction away from each other; a cutting strip knife is provided in the middle of the outer arc surface of each supporting strip, and the cutting strip knife is parallel to the supporting strip; a top roller is provided on the machine base, and the top roller is parallel to the first axis, and is located below the winding part, and is spaced apart from the winding part; a hollow rod is provided at the end of each supporting strip, and the hollow rod is parallel to the first axis and can rotate around its own axis, the interior of the hollow rod is a negative pressure environment, and a plurality of suction ports are provided on the outer peripheral wall of each hollow rod, and the suction port is connected to the interior of the hollow rod.

[0013] Furthermore, the cross-section of the cutting blade is an isosceles acute triangle, and the tip of the cutting blade is arranged outward.

[0014] Furthermore, the automated production line of woven bags further comprises a first elastic member, which is connected between the two spreading plates. Under the action of the first elastic member, the two spreading plates tend to move away from each other.

[0015] Furthermore, the first elastic member is a first compression spring or a rubber matrix.

[0016] Furthermore, the automated production line of woven bags further comprises two second elastic members, which are connected between the spreading plate and the mounting seat. Under the action of the second elastic members, the two spreading plates tend to move away from each other.

[0017] Furthermore, the second elastic member is a second compression spring or a rubber matrix.

[0018] Furthermore, the automated production line of the woven bags further comprises an air suction component, which is configured to provide a negative pressure environment for the hollow rods.

[0019] Furthermore, the automated production line of woven bags further includes a drive assembly, and the drive assembly is configured to provide a driving force for the rotation of the winding part.

[0020] The beneficial effects of the present invention are:

[0021] The present invention relates to an automated production line for woven bags. By providing a winding section and a cutting and flattening mechanism coordinated therewith, the circular woven fabric base can be rolled up and flattened and collected during the woven bag production process. Thus, on the one hand, continuous transportation of the circular woven fabric base can be achieved, which simplifies the process and helps reduce the frequency of manual intervention. On the other hand, the circular woven fabric base can be continuously cut, flattened and collected, reducing the occurrence of skewness, wrinkles and the like, thereby reducing the adverse effects on subsequent handling, sewing and other processes, and ensuring production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of an automated production line for woven bags provided in an embodiment of the present invention;

[0023] Figure 2 A schematic front view of the structure of an automated production line for woven bags provided by an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the three-dimensional structure of the winding section and the cutting and flattening mechanism of the automated production line for woven bags provided by an embodiment of the present invention during assembly;

[0025] Figure 4 for Figure 3 Middle AA section view;

[0026] Figure 5 for Figure 4 A schematic diagram of the partially enlarged structure at Y in the middle;

[0027] Figure 6 for Figure 3 Middle BB section view;

[0028] Figure 7 for Figure 6 Schematic diagram of the partially enlarged structure at Z in the middle;

[0029] Figure 8 A schematic side view of the structure of the winding section and cutting and flattening mechanism of the automated production line for woven bags provided by an embodiment of the present invention during assembly;

[0030] Figure 9 for Figure 8 Mid-CC section view.

[0031] in:

[0032] 1. Machine base;

[0033] 2. Winding unit; 201. Mounting seat; 2011. Slide; 2012. Air extraction port; 202. Support strip;

[0034] 301, spreading plate; 3011, slider; 3012, nut; 302, cutting knife; 303, top roller; 304, hollow rod; 3041, suction port; 305, first compression spring;

[0035] 4. Drive assembly; 401. First drive motor; 402. Coupling;

[0036] 5. Discharge machine;

[0037] 6. Second drive motor. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0040] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0041] Refer to the following Figures 1 to 9 The automated production line for woven bags provided in an embodiment of the present invention will be described.

[0042] Specifically, the automated production line for woven bags is configured to include a drying mixer, an extruder, a weaving machine, a discharger 5, a cutting machine and a sewing machine, wherein the drying mixer is used to stir and dry the materials required for the woven bags, thereby obtaining a uniformly mixed and dry raw material; the extruder is used to extrude the uniformly mixed and dry raw material into a film, and then cut it into embryonic wires with a blade, and after heat setting and pulling shrinkage, obtain a rolled-up flat wire; the weaving machine is used to weave the flat wire into a cylindrical round woven fabric base; the discharger 5 is used to discharge the round woven fabric base; the cutting machine is used to cut the round woven fabric base to obtain strips of woven bags; the sewing machine is used to sew a single woven bag to obtain a finished woven bag.

[0043] In the production of woven bags, existing cutting machines, when used to cut soft, non-sealed woven bags, require a circular fabric base, requiring multiple operations, including conveying, positioning, cutting, and semi-finished product transfer. This process is significantly complex and significantly increases the frequency of manual intervention, leading to a significant decrease in production efficiency. Furthermore, due to the high flexibility of the semi-finished products after cutting, they are prone to morphological defects such as deviation and wrinkles during stacking, resulting in insufficient stacking regularity. This poor stacking condition has a knock-on effect on subsequent logistics, transportation, and sewing processes. For example, there is a risk of semi-finished products scattering or breaking during handling, and additional calibration operations are required during the sewing process, increasing process complexity and time costs.

[0044] Based on this, in the automated production line of woven bags provided in an embodiment of the present invention, the cutting machine is configured to include a machine base 1, a winding section 2 and a cutting and flattening mechanism, wherein the winding section 2 is arranged on the machine base 1 and can rotate around a first axis, and is configured to be able to wind up the circular woven fabric base discharged by the discharge machine 5; the cutting and flattening mechanism is arranged on the winding section 2, and is configured to be able to cut the circular woven fabric base rolled up by the winding section 2 from the inside to the outside, and is configured to be able to flatten and collect the cut circular woven fabric base.

[0045] Therefore, when cutting woven bags with a soft texture and no need for sealing, the linkage mechanism between the winding section 2 and the cutting and flattening mechanism constructs a dynamic continuous production system, wherein the winding section 2 realizes dynamic winding of the circular woven fabric base by constant rotation around the first axis. This non-intermittent conveying mode completely changes the intermittent process of "positioning-cutting" in the traditional process; when the circular woven fabric base continues to rotate with the winding section 2, the cutting and flattening mechanism synchronously performs cutting and flattening operations from the inside to the outside, making the entire production process continuous and efficient.

[0046] Furthermore, the winding section 2 is configured to include a mounting seat 201 and two support strips 202, wherein the mounting seat 201 is a strip structure and is vertically arranged when installed and is located on the right side of the machine base 1, the mounting seat 201 is perpendicular to the first axis, and the middle part of the mounting seat 201 coincides with the first axis; the two support strips 202 are respectively vertically arranged at both ends of the mounting seat 201, and are both located on the right side of the mounting seat 201, and the support strips 202 can be detachably connected to the mounting seat 201 by bolts, and the support strips 202 are arc-shaped structures, and the opening of the upper support strip 202 is arranged downward, and the opening of the lower support strip is arranged upward, so that the openings of the two support strips 202 are arranged relative to each other, and then when the mounting seat 201 rotates around the first axis, the outer arc surfaces of the two support strips 202 can serve as a supporting structure to support the circular woven fabric base, and can also serve as a fulcrum to wind up the circular woven fabric base.

[0047] Furthermore, the cutting and flattening mechanism is configured to include a flattening plate 301, a cutting blade 302, a top roller 303, a hollow rod 304 and a first elastic member, wherein the number of the flattening plates 301 is two, both of which are located between the two supporting strips 202, and the plate surface of the flattening plate 301 is parallel to the first axis; the first elastic member is connected between the two flattening plates 301, and under the action of the first elastic member, the flattening plate 301 located at the front side has a tendency to move forward, and the display board located at the rear side has a tendency to move backward, so that the two flattening plates 301 can move along each other. The cam 2011 is a plurality of sliding blocks 2011 arranged at a plurality of intervals in the vertical direction, and the plurality of sliding blocks 2011 are arranged at a plurality of intervals in the vertical direction. The plurality of sliding blocks 3011 are a plurality of sliding blocks 2011 arranged at a plurality of intervals in the vertical direction, and the plurality of sliding blocks 3011 are a plurality of sliding blocks 3011 arranged at a plurality of intervals in the vertical direction. The nut 3012 is threadedly sleeved on each of the two expansion plates 301. The nut 3012 is stopped on the left side wall of the mounting seat 201 during installation, so that the expansion plate 301 can slide along the slide groove 2011 through the slider 3011 without being separated from the mounting seat 201, ensuring that the expansion plate 301 always has a fixed position; the expansion plate 301 is an arc-shaped structure, and the two expansion plates 301 are arranged at intervals along the front and back directions, and the opening of the expansion plate 301 on the front side is set to the rear, and the opening of the expansion plate 301 on the rear side is set to the front, so that the openings of the two expansion plates 301 are set relative to each other; initially, the expansion plate 301 on the front side is set to the front side. The upper end of the side expansion plate 301 abuts against the inner arc surface of the support strip 202 located above under the action of the first elastic member, and the lower end abuts against the inner arc surface of the support strip 202 located below under the elastic action. The upper end of the rear expansion plate 301 abuts against the inner arc surface of the support strip 202 located above under the action of the first elastic member, and the lower end abuts against the inner arc surface of the support strip 202 located below under the elastic action. Therefore, when the mounting seat 201 rotates around the first axis, the outer arc surfaces of the two expansion plates 301 can serve as support structures to support the circular woven fabric base.

[0048] It is understood that the first elastic member can be configured as a first compression spring 305 or a rubber matrix. Taking the example of the first elastic member being configured as the first compression spring 305, the first compression spring 305 is positioned transversely between the two expansion plates 301 and extends in the front-to-back direction. During installation, the front end of the first compression spring 305 is fixedly connected to the rear surface of the expansion plate 301 located on the front side, and the rear end is fixedly connected to the front surface of the expansion plate 301 located on the rear side. Under the action of the first compression spring 305, the expansion plate 301 located on the front side tends to move forward, while the display panel located on the rear side tends to move backward.

[0049] There are two cutting knives 302, one of which is parallel and fixedly arranged at the top of the outer arc surface of the supporting strip 202 located above, and the other cutting knife 302 is parallel and fixedly arranged at the bottom of the outer arc surface of the supporting strip 202 located below, ensuring that the circular fabric base can be cut in the horizontal direction; the top roller 303 is arranged on the machine base 1, the top roller 303 is parallel to the first axis, and is located directly below the winding part 2, and is spaced apart from the winding part 2. The top roller 303 is used as a support for the cutting knife 302 when cutting the circular fabric base. During the process of processing the circular woven fabric base, as the mounting seat 201 rotates, the circular woven fabric base is wound around the supporting strip 202 and the spreading plate 301 from the inside to the outside (vortex trajectory) along the circumferential direction; when the circular woven fabric base is wound to a preset number of layers (greater than the distance between the cutting blade 302 located below and the top roller 303 when the mounting seat 201 is in a vertical state), as the mounting seat 201 continues to rotate, when the mounting seat 201 is in a vertical state, the cutting blade 302 located below cuts the circular woven fabric base from the inside to the outside under the support of the top roller 303, and cuts at least one layer.

[0050] There are four hollow rods 304, two of which are respectively arranged in parallel at the two ends of the arc-shaped structure of the support strip 202 located above, and both can rotate around their own axes. The other two hollow rods 304 are respectively arranged in parallel at the two ends of the arc-shaped structure of the support strip 202 located below, and both can rotate around their own axes. The interior of the hollow rod 304 is a negative pressure environment, and a plurality of suction ports 3041 are provided on the outer peripheral wall of each hollow rod 304. The suction ports 3041 are connected to the interior of the hollow rod 304, so that the circular woven fabric base can be adsorbed on the hollow rod 304, so that the circular woven fabric base rotates with the hollow rod 304, which is convenient for flattening and collection.

[0051] During the processing of the circular woven fabric base, after the cutting knife 302 at the bottom has cut the circular woven fabric base, the lower end of the innermost circular woven fabric base is divided into two independent parts; then the air inside the two hollow rods 304 at the bottom is sucked to make the interior of the two hollow rods 304 a negative pressure environment, and the negative pressure environment adsorbs the two lower ends of the innermost circular woven fabric base onto the two hollow rods 304 respectively through the suction port 3041; at the same time, the hollow rods 304 are driven to rotate, and the hollow rod 304 at the bottom front is ensured to rotate in the counterclockwise direction. The hollow rod 304 located at the bottom and rear rotates in a clockwise direction. Under the action of adsorption, the hollow rod 304 synchronously drives the lower end of the innermost circular woven fabric base to rotate, and then drives it from top to bottom into the area between the lower end of the spreading plate 301 and the supporting strip 202. At this time, since the upper end of the innermost circular woven fabric base is restricted by the outer circular woven fabric base and cannot move, the hollow rod 304 synchronously drives the lower end of the innermost circular woven fabric base to continue to move downward under the action of adsorption, so that the innermost circular woven fabric base can be flattened.

[0052] As the mounting base 201 rotates, when the cutting blade 302 originally located at the top rotates to the bottom, it is supported by the top roller 303 and cuts the circular woven fabric base from the inside to the outside, and cuts at least one layer, so that the original upper end of the innermost circular woven fabric base is also divided into two independent parts, and then the above-mentioned process of sucking the air inside the hollow rod 304 and driving the hollow rod 304 to rotate is repeated, so that the original upper end of the innermost circular woven fabric base rotates synchronously with the hollow rod 304 under the action of adsorption, and then enters from top to bottom into the area between the lower end of the spreading plate 301 and the supporting strip 202. At this time, since the two ends of the innermost circular woven fabric base are respectively adsorbed by the two hollow rods 304 on the same side and tensioned in the upward and downward directions, it can achieve the innermost The circular woven fabric bases of the layer are flattened and can be collected; the above process is repeated, and as the number of circular woven fabric bases between the spreading plate 301 and the supporting strip 202 increases, the two spreading plates 301 are pushed closer to each other, thereby compressing the first compression spring 305. The elastic force of the first compression spring 305 increases, so that the circular woven fabric bases can be stably clamped between the spreading plate 301 and the supporting strip 202; when the number of circular woven fabric bases between the spreading plate 301 and the supporting strip 202 reaches a preset number, multiple circular woven fabric bases are pulled out from the right side of the spreading plate 301 from left to right. The operation is simple. After multiple circular woven fabric bases are pulled out, the first compression spring 305 is released, driving the two spreading plates 301 to move away from each other, facilitating the start of the next round of flattening and collecting the circular woven fabric bases.

[0053] Thus, a closed-loop system of the three coordinated processes of "conveying-cutting-collecting" is formed, so that the circular fabric base is conveyed at a constant linear speed through the continuous rotation of the winding part 2, and the circular fabric base forms a stable annular trajectory under the action of tension, avoiding the displacement of the fabric base caused by inertia during positioning in the traditional process, and providing a dynamic and stable operation basis for subsequent cutting; at the same time, when the cutting knife 302 rotates with the winding part 2, its motion trajectory is matched with the conveying speed of the circular fabric base in real time, and dynamic cutting is achieved by using the "motion trajectory synchronization method". At this time, the direction of the force of the blade on the circular fabric base forms a reasonable angle with the movement direction of the circular fabric base, which reduces the cutting The hollow rod 304 can remove the resistance and avoid the wrinkles of the circular woven fabric base caused by local stress concentration during traditional cutting. In addition, the circular woven fabric base after cutting is controlled by the triple mechanism of "tension-adsorption-stretching" under the synergistic effect of the negative pressure adsorption of the hollow rod 304 and the elastic support of the spreading plate 301. The negative pressure adsorption force of the hollow rod 304 fixes the cutting edge, and the spreading plate 301 stretches the circular woven fabric base through the lateral tension generated by the elastic sliding. The cooperation of the two eliminates the sagging wrinkles of the soft material caused by its own weight, so that the cut circular woven fabric base can be collected in a flat state, thereby reducing the adverse effects on subsequent handling, sewing and other processes, and ensuring production efficiency.

[0054] In a further embodiment, in order to improve the force balance when the two expansion plates 301 move toward each other, the number of first compression springs 305 can be set to multiple. Compared with a single first compression spring 305, multiple first compression springs 305 can construct a multi-point support system, thereby dispersing the driving force to different points of action, forming a symmetrical elastic support structure, thereby effectively offsetting the deflection torque caused by uneven force.

[0055] Specifically in this embodiment, the number of the first compression springs 305 can be set to two, and the two first compression springs 305 can be arranged at intervals along the left and right directions. When the two unfolding plates 301 are subjected to external extrusion force, the first compression springs 305 on the left and right sides synchronously generate reverse elastic force to form a horizontal force couple balance system. This structure can ensure that the elastic forces exerted on various parts of the unfolding plates 301 remain consistent during the process of their movement toward each other, avoiding tilting of the plate surface due to excessive force on one side, and is particularly suitable for scenarios where uneven lateral tension is generated in the flattening process of a circular woven fabric base.

[0056] In other embodiments, the two first compression springs 305 can also be arranged at intervals in the upper and lower directions. When the spreading plate 301 is subjected to vertical pressure from the circular woven fabric base, the upper and lower first compression springs 305 generate reverse supporting force through elastic deformation, forming a vertical force balance system. This layout is particularly suitable for processing circular woven fabric bases with uneven thickness. The independent deformation of the upper and lower first compression springs 305 can adapt to pressure changes in different parts, while ensuring the flattening effect, avoiding displacement deviation of the spreading plate 301 caused by sudden local pressure changes.

[0057] Therefore, by setting up multiple first compression springs 305 and utilizing their spatial distribution advantage, single-point force is converted into multi-point coordinated force, and the principle of force composition and decomposition is utilized to achieve dynamic balance during the movement of the unfolding plate 301, fundamentally solving the problem of unbalanced force that may occur when the traditional single first compression spring 305 is driven, and providing reliable mechanical support for the stable flattening of the circular woven fabric base.

[0058] In other embodiments, to enable the two expansion plates 301 to elastically slide away from each other, two second elastic members may be used in place of the first elastic member, with the second elastic members connected between the expansion plates 301 and the mounting base 201. Under the action of the second elastic members, the two expansion plates 301 tend to move away from each other. In this way, by changing the connection position and force path of the elastic elements, a new elastic drive system is constructed. Compared to the design in which the first elastic member is connected between the two expansion plates 301, the core mechanism of the second elastic member is to apply an elastic driving force between the expansion plates 301 and the mounting base 201, and to generate a reaction force through the rigid support of the mounting base 201, thereby driving the expansion plates 301 to move in the opposite direction.

[0059] Specifically in this embodiment, the second elastic member can be set as a second compression spring, which is placed horizontally between the two expansion plates 301 and extends in the front-to-back direction. When installed, the two ends of the second compression spring are respectively fixed on the expansion plate 301 and the mounting base 201. Under the action of the second compression spring, the expansion plate 301 located on the front side has a tendency to move forward, and the exhibition board located on the rear side has a tendency to move backward, thereby forming a force transmission chain of "machine base 1-second compression spring-expansion plate 301", ensuring the stability and directionality of the driving force.

[0060] It is understandable that the second elastic member may also be configured as a rubber matrix.

[0061] In other embodiments, the cross-section of the cutting blade 302 is an isosceles acute triangle, with the tip of the cutting blade 302 facing outward. This geometric configuration of an isosceles acute triangle significantly reduces stress concentration areas during cutting. Furthermore, by reducing the initial contact area between the blade and the circular woven fabric, a greater pressure can be generated under the same cutting force, effectively overcoming the flexible resistance of soft woven materials and achieving precise cutting.

[0062] During the cutting process, when the cutting knife 302 rotates with the winding part 2 and cuts into the circular fabric base, the component force generated by the tip can stretch the fabric fibers along the two sides of the triangle, and utilize the coupling effect of the tensile strength and shear force of the material to reduce the fiber pulling phenomenon during the cutting process; at the same time, the symmetrical structure of the isosceles triangle can ensure that the cutting force is evenly distributed on the blades on both sides, avoiding cutting deviation caused by uneven force on one side, and is particularly suitable for the circular cutting scenario of the circular fabric base in the winding state.

[0063] When the winding part 2 rotates around the first axis, the tip of the cutting knife 302 moves from the inside to the outside along the radial direction of the circular woven fabric base. This cutting direction is perpendicular to the winding direction of the fabric fibers, which can minimize the influence of fiber stretching on the cutting accuracy; at the same time, the outward-facing tip can utilize the centrifugal force generated by the rotation of the winding part 2 to assist in cutting, so that the blade obtains additional tangential force at the moment of contact with the fabric, thereby improving cutting efficiency and cross-sectional flatness.

[0064] In other embodiments, the automated production line for woven bags is configured to further include an air suction component, which is configured to provide a negative pressure environment for the hollow rod 304 .

[0065] Specifically in this embodiment, four air extraction ports 2012 are provided on the left side wall of the mounting base 201, and the air extraction ports 2012 are provided corresponding to the hollow rod 304 and are connected to the hollow rod 304; the air extraction component is provided to include an air pump, and the number of air pumps can be provided to be one, and they are connected to the four air extraction ports 2012 respectively through a four-way solenoid valve. When in use, the interior of different hollow rods 304 can be evacuated to a negative pressure environment through different air extraction ports 2012 by controlling the four-way solenoid valve; the number of air pumps can also be provided to be four, and they are connected to the four air extraction ports 2012 respectively, to ensure that the interior of the four hollow rods 304 can be evacuated to a negative pressure environment through the air extraction ports 2012.

[0066] In other embodiments, the automated production line for woven bags is configured to further include a drive assembly 4 , and the drive assembly 4 is configured to provide a driving force for the winding portion 2 to rotate.

[0067] Specifically in this embodiment, the drive assembly 4 is configured to include a first drive motor 401 and a coupling 402, wherein the first drive motor 401 is fixed on the top of the machine base 1 during installation, the motor shaft of the first drive motor 401 faces right, and the axis of the motor shaft of the first drive motor 401 extends horizontally in the left and right directions; the coupling 402 is fixed on the top of the machine base 1 and is located on the right side of the first drive motor 401. When installed, the receiving end of the coupling 402 is connected to the motor shaft of the first drive motor 401, and the output end is fixedly inserted in the middle of the mounting base 201 to ensure that the mounting base 201 can be driven to rotate, thereby realizing the winding of the circular woven fabric base.

[0068] In other embodiments, in order to facilitate the provision of driving force for the rotation of the hollow rod 304, the automated production line of the woven bag is configured to also include four second drive motors 6, two of which are arranged at the right end of the upper support strip 202, and are respectively arranged at both ends of the arc structure of the upper support strip 202, and the other two second drive motors 6 are both arranged at the right end of the lower support strip 202, and are respectively arranged at both ends of the arc structure of the lower support strip 202. When the second drive motor 6 is installed, the motor shaft faces left and is fixed to the right end of the hollow rod 304. The axis of the motor shaft of the second drive motor 6 extends horizontally in the left and right directions and coincides with the axis of the hollow rod 304, ensuring that the hollow rod 304 can be driven to rotate.

[0069] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-described embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that variations and modifications are possible without departing from the scope of the present invention, and such variations and modifications are fully within the scope of protection of the present invention.

Claims

1. An automated production line for woven bags, characterized in that: The automated production line of woven bags comprises: base; a winding portion, disposed on the machine base and capable of rotating about a first axis, and configured to be capable of winding a circular woven fabric base; a cutting and flattening mechanism, provided on the winding portion, and configured to cut the circular woven fabric base wound up by the winding portion from the inside out, and configured to flatten and collect the cut circular woven fabric base; The winding portion includes a mounting seat, which is a strip-shaped structure. The mounting seat is perpendicular to the first axis, and the middle of the mounting seat coincides with the first axis. Both ends of the mounting seat are located on the same side and are vertically provided with support strips. The support strips are arc-shaped structures, and the openings of the two support strips are arranged opposite to each other. The cutting and flattening mechanism includes a flat plate, and two flat plates are provided on the mounting seat, and the plate surface of the flat plate is parallel to the first axis. The flat plate is an arc-shaped structure, and the openings of the two flat plates are arranged opposite to each other, and the two flat plates can elastically slide in a direction away from each other; a cutting strip knife is provided in the middle of the outer arc surface of each supporting strip, and the cutting strip knife is parallel to the supporting strip; a top roller is provided on the machine base, and the top roller is parallel to the first axis, and is located below the winding part, and is spaced apart from the winding part; a hollow rod is provided at the end of each supporting strip, and the hollow rod is parallel to the first axis and can rotate around its own axis, the interior of the hollow rod is a negative pressure environment, and a plurality of suction ports are provided on the outer peripheral wall of each hollow rod, and the suction port is connected to the interior of the hollow rod.

2. The automated production line for woven bags according to claim 1, characterized in that: The cross-section of the cutting blade is an isosceles acute triangle, and the tip of the cutting blade is arranged outward.

3. The automated production line for woven bags according to claim 1, characterized in that: The automated production line for woven bags further comprises a first elastic member connected between the two spreading plates. Under the action of the first elastic member, the two spreading plates tend to move away from each other.

4. The automated production line for woven bags according to claim 3, characterized in that: The first elastic member is a first compression spring or a rubber matrix.

5. The automated production line for woven bags according to claim 1, characterized in that: The automated production line of woven bags further comprises two second elastic members, which are connected between the spreading plate and the mounting seat. Under the action of the second elastic members, the two spreading plates tend to move away from each other.

6. The automated production line for woven bags according to claim 5, characterized in that: The second elastic member is a second compression spring or a rubber matrix.

7. The automated production line for woven bags according to claim 1, characterized in that: The automated production line of woven bags further comprises an air suction member, which is configured to provide a negative pressure environment for the hollow rods.

8. The automated production line for woven bags according to claim 1, characterized in that: The automated production line for woven bags further comprises a driving assembly configured to provide driving force for the winding portion to rotate.

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