Automatic production line for woven bags

Abstract

The invention relates to the technical field of woven bag production, in particular to an automatic woven bag production line which comprises a machine base, a winding part and a cutting and flattening mechanism, and the winding part is arranged on the machine base, can rotate around a first axis and is configured to be capable of winding a circular woven fabric base; and the cutting and flattening mechanism is arranged on the winding part and is configured to be capable of cutting the circular woven fabric base wound by the winding part from inside to outside, and is configured to be capable of flattening and collecting the cut circular woven fabric base. Therefore, on one hand, continuous transportation of the circular woven fabric base can be achieved, the process is simplified, meanwhile, the frequency of manual intervention is reduced, on the other hand, the circular woven fabric base can be continuously cut, flattened and collected, the conditions of skewing, wrinkling and the like are reduced, then the adverse effects on the subsequent procedures of carrying, sewing and the like are reduced, and the production efficiency is guaranteed.

Description

Technical Field

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

[0002] A woven bag is a packaging bag woven from plastic threads, usually used for packaging and storing various items, and has the characteristics of being light, durable, waterproof, easy to clean, environmentally friendly, customizable, and printable, and is widely used in multiple fields such as food packaging, tourism transportation, and engineering material transportation.

[0003] In related technologies, for example, Chinese Patent Application CN115246251A discloses a method for manufacturing and processing plastic woven bags, and the method for manufacturing and processing plastic woven bags includes the following steps: S1, feeding; S2, conveying: the servo motor drives the transmission chain plate to rotate clockwise, the suction cup adsorbs the woven bag and moves together with the transmission chain plate, and when the woven bag moves below the cutting blade, the servo motor is turned off; S3, cutting: the woven bag is cut by the cutting blade; S4, discharging: after cutting, the servo motor is restarted, and the woven bag is driven to continue moving by the transmission chain plate and the suction cup.

[0004] However, there are also some problems in the existing woven bag production process: in the cutting process, for woven bags with a soft texture and no need for sealing, the processing process of the circular woven fabric base needs to go through multiple steps such as conveying to a specified position, cutting, and then conveying the cut semi-finished product away. This operation process is cumbersome and complex, and the frequency of manual intervention is relatively high, resulting in low production efficiency; at the same time, due to the soft texture of the cut semi-finished product, it is extremely easy to be skewed, wrinkled, etc. during the stacking process, resulting in uneven stacking. This uneven stacking state will have an adverse impact on subsequent processes such as handling and sewing. Summary of the Invention

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

[0006] The above object is achieved by the following technical solutions: An automated production line for woven bags, the automated production line for woven bags includes: A machine base; A winding part, arranged on the machine base, capable of rotating around a first axis, and configured to wind a circular woven fabric base; A cutting and flattening mechanism, arranged on the winding part, and configured to cut the circular woven fabric base wound by the winding part from the inside to the outside, and configured to flatten and collect the cut circular woven fabric base.

[0007] Further, the winding part includes a mounting seat, the mounting seat is in a strip structure, the mounting seat is perpendicular to the first axis, and the middle of the mounting seat coincides with the first axis; support strip plates are vertically arranged at both ends of the mounting seat on the same side, the support strip plates are in an arc structure, and the openings of the two support strip plates are arranged opposite to each other.

[0008] Further, the cutting and flattening mechanism includes flattening plates, two flattening plates are arranged on the mounting seat, the plate surface of the flattening plate is parallel to the first axis, the flattening plate is in an arc 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 arranged in the middle of the outer arc surface of each support strip plate, and the cutting strip knife is parallel to the support strip plate; a top roller is arranged on the machine base, the top roller is parallel to the first axis, is located below the winding part, and is arranged at an interval from the winding part; a hollow rod is arranged at the end of each support strip plate, the hollow rod is parallel to the first axis and can rotate around its own axis, the inside of the hollow rod is in a negative pressure environment, and a plurality of suction ports are arranged on the outer peripheral wall of each hollow rod, and the suction ports are communicated with the inside of the hollow rod.

[0009] Further, the cross-sectional shape of the cutting strip knife is an isosceles acute triangle, and the tip of the cutting strip knife faces outwards.

[0010] Further, the automatic production line of the woven bag further includes a first elastic member, the first elastic member is connected between the two flattening plates, and under the action of the first elastic member, the two flattening plates tend to move away from each other.

[0011] Further, the first elastic member is a first compression spring or a rubber matrix.

[0012] Further, the automatic production line of the woven bag further includes two second elastic members, the second elastic members are connected between the flattening plates and the mounting seat, and under the action of the second elastic members, the two flattening plates tend to move away from each other.

[0013] Further, the second elastic member is a second compression spring or a rubber matrix.

[0014] Further, the automatic production line of the woven bag further includes an air extraction member, and the air extraction member is configured to be able to provide a negative pressure environment for the hollow rod.

[0015] Further, the automatic production line of the woven bag further includes a driving assembly, and the driving assembly is configured to be able to provide a driving force for the rotation of the winding part.

[0016] The beneficial effects of the present invention are: The present invention relates to an automated production line for woven bags. By providing a winding part and a cutting and flattening mechanism cooperating therewith, during the production process of woven bags, it is possible to wind and flatten and collect the edges of the circular woven fabric base, so that on the one hand, continuous transportation of the circular woven fabric base can be achieved, simplifying the process and facilitating the reduction of 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 skewing, wrinkling and other situations, thereby reducing the adverse effects on subsequent processes such as handling and sewing, and ensuring production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 6 is a schematic three-dimensional structure diagram of the automated production line for woven bags provided by an embodiment of the present invention; Figure 2 FIG. 9 is a schematic front view structure diagram of the automated production line for woven bags provided by an embodiment of the present invention; Figure 3 FIG. 12 is a schematic three-dimensional structure diagram of the winding part and the cutting and flattening mechanism of the automated production line for woven bags provided by an embodiment of the present invention during assembly; Figure 4 FIG. 15 is Figure 3 a sectional view taken along the line A-A in FIG. 15; Figure 5 FIG. 20 is Figure 4 a partially enlarged schematic structural diagram at Y in FIG. 21; Figure 6 FIG. 25 is Figure 3 a sectional view taken along the line B-B in FIG. 25; Figure 7 FIG. 30 is Figure 6 a partially enlarged schematic structural diagram at Z in FIG. 31; Figure 8 FIG. 35 is a schematic side view structure diagram of the winding part and the cutting and flattening mechanism of the automated production line for woven bags provided by an embodiment of the present invention during assembly; Figure 9 FIG. 38 is Figure 8 a sectional view taken along the line C-C in FIG. 39.

[0018] Wherein: 1, machine base; 2, winding part; 201, mounting seat; 2011, chute; 2012, air extraction port; 202, support strip; 301, flattening plate; 3011, slider; 3012, nut; 302, cutting strip knife; 303, top roller; 304, hollow rod; 3041, suction port; 305, first compression spring; 4, drive assembly; 401, first drive motor; 402, coupling; 5, discharge machine; 6, second drive motor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, 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 used to limit the present invention.

[0020] The serial numbers assigned to the components in this article itself, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meanings. The terms "connection" and "coupling" mentioned in this article, unless otherwise specified, both include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention.

[0021] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0022] The following refers to Figures 1 to 9 to describe the automated production line of woven bags provided by the embodiments of the present invention.

[0023] Specifically, the automated production line of woven bags is set to include a drying mixer, an extruder, a knitting machine, an ejector 5, a cutting machine and a sewing machine. The drying mixer is used to stir and dry the materials required for the woven bags, so as to obtain uniformly mixed and dry raw materials; the extruder is used to extrude the uniformly mixed and dry raw materials into a film, then cut them into embryo filaments with a blade, and through heat setting and traction shrinkage, obtain flat filaments formed into a roll; the knitting machine is used to knit the flat filaments into a cylindrical circular woven fabric base; the ejector 5 is used to eject the circular woven fabric base; the cutting machine is used to cut the circular woven fabric base to obtain strips of woven bags; the sewing machine is used to sew single woven bags, so as to obtain finished woven bags.

[0024] In the field of the production of woven bags, when the existing cutting machine cuts a woven bag with a relatively soft texture and no need for sealing, the processing process of its circular woven fabric base includes multiple operation units such as conveying and positioning, cutting, and semi-finished product transfer. This process flow is significantly complex and will greatly increase the frequency of manual intervention, resulting in a significant decline in production efficiency. In addition, due to the high flexibility of the semi-finished product after cutting, it is extremely easy to have morphological defects such as offset and creases during the stacking process, resulting in insufficient stacking regularity. This poor stacking state will have a chain effect on subsequent logistics transfer and sewing processing links; for example, there is a risk of semi-finished products scattering and breaking during handling; in the sewing process, additional calibration operations are required, further increasing the process complexity and time cost.

[0025] Based on this, in the automated production line of woven bags provided in the embodiments of the present invention, the cutting machine is set to include a machine base 1, a winding part 2, and a cutting and flattening mechanism. The winding part 2 is arranged on the machine base 1 and can rotate around the first axis, and is configured to wind the circular woven fabric base discharged by the discharging machine 5; the cutting and flattening mechanism is arranged on the winding part 2 and is configured to cut the circular woven fabric base wound by the winding part 2 from the inside to the outside, and is configured to flatten and collect the cut circular woven fabric base.

[0026] Thus, when cutting a woven bag with a relatively soft texture and no need for sealing, the linkage mechanism between the winding part 2 and the cutting and flattening mechanism constructs a dynamic continuous production system. The winding part 2 realizes the dynamic winding of the circular woven fabric base through the 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 continuously rotates with the winding part 2, the cutting and flattening mechanism synchronously performs the cutting and flattening operations from the inside to the outside, making the whole production process continuous and efficient.

[0027] Furthermore, the winding part 2 is set to include a mounting seat 201 and two supporting strip plates 202. The mounting seat 201 is a strip-shaped structure and is vertically arranged during installation 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 of the mounting seat 201 coincides with the first axis; the two supporting strip plates 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. The supporting strip plates 202 can be detachably connected to the mounting seat 201 through bolts. The supporting strip plates 202 are arc-shaped structures, and the opening of the upper supporting strip plate 202 faces downward, and the opening of the lower supporting strip plate faces upward, so that the openings of the two supporting strip plates 202 are arranged opposite to each other. Thus, when the mounting seat 201 rotates around the first axis, the outer arc surfaces of the two supporting strip plates 202 can not only be used as a supporting structure to support the circular woven fabric base but also be used as a fulcrum to wind the circular woven fabric base.

[0028] 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.

[0029] 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.

[0030] There are two cutting strip knives 302. One of the cutting strip knives 302 is fixedly arranged in parallel on the top of the outer arc surface of the upper support strip plate 202, and the other cutting strip knife 302 is fixedly arranged in parallel on the bottom of the outer arc surface of the lower support strip plate 202, ensuring that the circular fabric base can be cut transversely; the top roller 303 is arranged on the machine base 1. The top roller 303 is parallel to the first axis, is located directly below the winding part 2, and is arranged at an interval from the winding part 2. The top roller 303 is used as a support when the cutting strip knife 302 cuts the circular fabric base. During the process of processing the circular fabric base, as the mounting seat 201 rotates, the circular fabric base is wound around the support strip plate 202 and the flattening plate 301 from the inside to the outside (in a spiral trajectory) along the circumferential direction; when the circular fabric base is wound to a preset number of layers (greater than the distance between the lower cutting strip knife 302 and the top roller 303 when the mounting seat 201 is in the vertical state), as the mounting seat 201 continues to rotate, when the mounting seat 201 is in the vertical state, under the support of the top roller 303, the lower cutting strip knife 302 cuts the circular fabric base from the inside to the outside and cuts at least one layer.

[0031] There are four hollow rods 304. Two of the hollow rods 304 are respectively arranged in parallel at both ends of the arc-shaped structure of the upper support strip plate 202 and can rotate around their own axes. The other two hollow rods 304 are respectively arranged in parallel at both ends of the arc-shaped structure of the lower support strip plate 202 and can rotate around their own axes; the inside of the hollow rod 304 is in a negative pressure environment. A plurality of suction ports 3041 are arranged on the outer peripheral wall of each hollow rod 304. The suction ports 3041 are communicated with the inside of the hollow rod 304, so that the circular fabric base can be adsorbed on the hollow rod 304 and the circular fabric base can follow the hollow rod 304 to rotate, facilitating flattening and collection.

[0032] During the process of processing the circular woven fabric base, after the cutting strip knife 302 located below cuts 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 located below is sucked out, making the inside of both of them in a negative pressure environment. This 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 ports 3041; at the same time, the hollow rods 304 are driven to rotate, and it is ensured that the hollow rod 304 located in the front below rotates counterclockwise, and the hollow rod 304 located in the back below rotates clockwise. Under the adsorption effect, the hollow rods 304 synchronously drive the lower ends of the innermost circular woven fabric base to rotate, and then drive it to enter the area between the lower end of the flattening plate 301 and the support strip plate 202 from top to bottom. 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, under the adsorption effect, the hollow rods 304 synchronously drive the lower end of the innermost circular woven fabric base to continue moving downward, so as to be able to flatten the innermost circular woven fabric base.

[0033] As the mounting base 201 rotates, when the cutting strip knife 302 originally located above rotates to below, supported by the top roller 303, it cuts the circular woven fabric base from the inside out 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. Then, the above 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 synchronously follows the hollow rod 304 to rotate under the adsorption effect, and then enters the area between the lower end of the flattening plate 301 and the support strip plate 202 from top to bottom. 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 are tensioned in the up and down directions, it can not only flatten the innermost circular woven fabric base, but also collect it; repeat the above process. As the number of circular woven fabric bases between the flattening plate 301 and the support strip plate 202 increases, it pushes the two flattening plates 301 closer to each other, and then compresses the first compression spring 305, and the elastic force of the first compression spring 305 increases accordingly, so as to be able to stably clamp the circular woven fabric base between the flattening plate 301 and the support strip plate 202; when the number of circular woven fabric bases between the flattening plate 301 and the support strip plate 202 reaches the preset number, from the right side of the flattening plate 301, multiple circular woven fabric bases are drawn out from left to right. The operation is simple. After multiple circular woven fabric bases are drawn out, the first compression spring 305 is released, driving the two flattening plates 301 to move away from each other, which is convenient for starting the next round of flattening and collecting of the circular woven fabric base.

[0034] Thus, a closed-loop system that coordinates the three processes of "conveying - cutting - collecting" is formed. Through the continuous rotation of the winding part 2, the circular fabric base is conveyed at a constant linear speed. Under the action of tension, the circular fabric base forms a stable circular trajectory, avoiding the displacement of the fabric base caused by inertia during positioning in the traditional process and providing a dynamically stable operation basis for subsequent cutting. At the same time, when the cutting strip knife 302 rotates with the winding part 2, its movement trajectory is matched with the conveying speed of the circular fabric base in real time, and dynamic cutting is achieved by using the "synchronous movement trajectory method". At this time, the acting direction of the cutting edge on the circular fabric base forms a reasonable angle with the movement direction of the circular fabric base, reducing the cutting resistance and avoiding the wrinkles of the circular fabric base caused by local stress concentration during traditional cutting. In addition, under the synergistic action of the negative pressure adsorption of the hollow rod 304 and the elastic support of the flattening plate 301, the shape control of the circular fabric base after cutting is realized through the triple mechanism of "tension - adsorption - stretching". The negative pressure adsorption force of the hollow rod 304 fixes the cutting edge, and the flattening plate 301 stretches the circular fabric base through the lateral tension generated by elastic sliding. The two cooperate to eliminate the sagging wrinkles caused by the self-weight of the soft material, so that the circular fabric base after cutting is collected in a flat state, reducing the adverse effects on subsequent processes such as handling and sewing and ensuring production efficiency.

[0035] In a further embodiment, to improve the force balance when the two flattening plates 301 move towards each other, the number of the 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, so that the driving force can be dispersed to different acting points, forming a symmetric elastic support structure, thereby effectively offsetting the deflection moment caused by uneven force.

[0036] Specifically in this embodiment, the number of the first compression springs 305 can be set to two. The two first compression springs 305 can be arranged at intervals in the left - right direction. When the two flattening plates 301 are subjected to an external extrusion force, the first compression springs 305 on the left and right sides simultaneously generate reverse elastic forces, forming a force couple balance system in the horizontal direction. This structure can ensure that during the process of the flattening plates 301 moving towards each other, the elastic forces received by each part are consistent, avoiding the inclination of the plate surface caused by excessive force on one side, especially suitable for the scenario of uneven lateral tension generated during the flattening process of the circular fabric base.

[0037] In other embodiments, the two first compression springs 305 can also be arranged at intervals in the up - down direction. When the flattening plate 301 is subjected to a vertical pressure from the circular fabric base, the first compression springs 305 arranged up and down generate reverse support forces through elastic deformation, forming a force balance system in the vertical direction. This layout is particularly suitable for dealing with circular fabric bases with uneven thickness. It can adapt to the pressure changes in different parts through the independent deformation of the upper and lower first compression springs 305, ensuring the flattening effect while avoiding the displacement deviation of the flattening plate 301 caused by sudden local pressure changes.

[0038] Thus, by setting a plurality of first compression springs 305 and taking advantage of their spatial distribution, the single-point force is transformed into multi-point collaborative force, and the dynamic balance during the movement of the flattening plate 301 is achieved by using the principle of force synthesis and decomposition, fundamentally solving the problem of uneven force that may occur during the driving of the traditional single first compression spring 305, and providing a reliable mechanical support for the stable flattening of the circular woven fabric base.

[0039] In other embodiments, to enable the two flattening plates 301 to elastically slide in a direction away from each other, two second elastic members can also be provided to replace the first elastic member, and the second elastic members are connected between the flattening plates 301 and the mounting base 201. Under the action of the second elastic members, the two flattening plates 301 tend to move away from each other. In this way, by changing the connection position and force application path of the elastic element, a new elastic drive system is constructed. Compared with the design where the first elastic member is connected between the two flattening plates 301, the core mechanism of the second elastic member is to apply the elastic driving force between the flattening plate 301 and the mounting base 201, and form a reaction force through the rigid support of the mounting base 201, thereby driving the flattening plate 301 to move in the opposite direction.

[0040] Specifically in this embodiment, the second elastic member can be set as a second compression spring. The second compression spring is horizontally arranged between the two flattening plates 301 and extends in the front-rear direction. When the second compression spring is installed, its two ends are respectively fixed on the flattening plate 301 and the mounting base 201. Under the action of the second compression spring, the front flattening plate 301 has a tendency to move forward, and the rear exhibition plate has a tendency to move backward, thus forming a force transmission chain of "machine base 1 - second compression spring - flattening plate 301" to ensure the stability and directionality of the driving force.

[0041] It can be understood that the second elastic member can also be set as a rubber matrix.

[0042] In other embodiments, the cross-sectional shape of the cutting strip knife 302 is an isosceles acute triangle, and the tip of the cutting strip knife 302 is arranged outward. In this way, through the geometric configuration of the isosceles acute triangle, on the one hand, its tip structure can significantly reduce the stress concentration area during cutting, and on the other hand, by reducing the initial contact area between the blade and the circular woven fabric base, a greater pressure can be generated under the same cutting force, thereby effectively overcoming the flexibility resistance of the soft woven material and achieving precise cutting.

[0043] 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.

[0044] 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.

[0045] 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 .

[0046] 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.

[0047] 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.

[0048] 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.

[0049] In some other embodiments, to facilitate providing the driving force for the rotation of the hollow rod 304, the automated production line of the woven bag is further provided with four second driving motors 6. Two of the second driving motors 6 are both arranged at the right end of the upper support strip plate 202 and are respectively arranged at both ends of the arc-shaped structure of the upper support strip plate 202. The other two second driving motors 6 are both arranged at the right end of the lower support strip plate 202 and are respectively arranged at both ends of the arc-shaped structure of the lower support strip plate 202. When the second driving 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 driving motor 6 extends horizontally in the left-right direction and coincides with the axis of the hollow rod 304, ensuring that the hollow rod 304 can be driven to rotate.

[0050] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, 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, it should be considered as the scope recorded in this specification.

[0051] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. An automated production line for woven bags, characterized in that, The automated production line of the woven bag includes: A machine base; A winding part, which is arranged on the machine base, can rotate around the first axis, and is configured to wind the circular woven fabric base; A cutting and flattening mechanism, which is arranged on the winding part, and is configured to cut the circular woven fabric base wound by the winding part from the inside to the outside, and is configured to flatten and collect the cut circular woven fabric base.

2. The automated production line of the woven bag according to claim 1, wherein, The winding part includes a mounting seat. The mounting seat is a strip-shaped structure. The mounting seat is perpendicular to the first axis, and the middle part of the mounting seat coincides with the first axis; Support strip plates are vertically arranged at both ends of the mounting seat on the same side. The support strip plates are arc-shaped structures, and the openings of the two support strip plates are arranged opposite to each other.

3. The automated production line of the woven bag according to claim 2, wherein, The cutting and flattening mechanism includes flattening plates. Two flattening plates are arranged 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. The two flattening plates can elastically slide in the direction away from each other; A cutting strip knife is arranged in the middle of the outer arc surface of each support strip plate. The cutting strip knife is parallel to the support strip plate; A top roller is arranged on the machine base. The top roller is parallel to the first axis, is located below the winding part, and is arranged at an interval from the winding part; A hollow rod is arranged at the end of each support strip plate. The hollow rod is parallel to the first axis and can rotate around its own axis. The inside of the hollow rod is a negative pressure environment. A plurality of suction ports are arranged on the outer peripheral wall of each hollow rod. The suction ports are communicated with the inside of the hollow rod.

4. The automated production line of the woven bag according to claim 3, characterized in that, The cross-sectional shape of the cutting strip knife is an isosceles acute triangle, and the tip of the cutting strip knife faces outwards.

5. The automated production line of the woven bag according to claim 3, wherein The automated production line of the woven bag further includes a first elastic member. The first elastic member is connected between the two flattening plates. Under the action of the first elastic member, the two flattening plates tend to move away from each other.

6. The automated production line of the woven bag according to claim 5, characterized in that, The first elastic member is a first compression spring or a rubber matrix.

7. The automated production line of the woven bag according to claim 3, wherein The automated production line of the woven bag further includes two second elastic members. The second elastic members are connected between the flattening plates and the mounting seat. Under the action of the second elastic members, the two flattening plates tend to move away from each other.

8. The automated production line of the woven bag according to claim 7, characterized in that, The second elastic member is a second compression spring or a rubber matrix.

9. The automated production line of the woven bag according to claim 3, characterized in that, The automated production line of the woven bag further includes an air extraction member, which is configured to provide a negative pressure environment for the hollow rod.

10. The automated production line of the woven bag according to claim 1, wherein, The automated production line of the woven bag further includes a driving assembly, which is configured to provide the driving force for the rotation of the winding part.

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