Container bag sewing machine with automatic cutting function

Abstract

The invention discloses an automatic cutting container bag sewing machine, which relates to the technical field of sewing equipment, and comprises a transmission sewing mechanism, a vertical plate, a first bracket, a first rotating frame, a bottom plate, a second rotating frame, a third rotating frame, a second bracket, a third bracket, a fixed plate, a center frame and a cutting mechanism, a sewing machine is arranged in the center of the conveying and sewing mechanism and used for sewing and conveying the container bags; the two sets of cutting mechanisms are arranged left and right and fixed to the bottom plate through fixing plates correspondingly, and the cutting mechanisms are provided with cutter feeding plates and cutter groove plates which move in the two directions and used for cutting the container bags in a two-way moving cutting mode. The center frame is fixed to the middle of the upper portion of the bottom plate, located between the two cutting mechanisms and used for connecting the two cutting mechanisms. The technical effects that the cutting process stability is improved, the cutting effect is improved, the cutting precision is improved, and the production efficiency is improved can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of sewing equipment, in particular to an automatic cutting container bag sewing machine. Background Art

[0002] The FIBC sewing machine is a device used to produce FIBCs (also known as ton bags, large bags in bags), which is designed to automatically cut the fabric and sew it into finished FIBCs. Sewing FIBCs is a key link in the production process. Through strict quality control and inspection, it can ensure that the quality of FIBCs meets the standard requirements and provide high-quality products.

[0003] The Chinese invention patent with patent number CN114381869B discloses a polypropylene container bag sewing machine with an automatic cutting device, including a transmission sewing structure and an automatic connection cutting structure. The transmission sewing structure is fixedly connected at the side end position of the automatic connection cutting structure. The transmission sewing structure includes a supporting base plate, a mounting bracket, a limit rod frame, a first rotating frame seat and a bottom support plate. The invention installs the automatic connection cutting structure, and the automatic connection cutting structure is arranged in combination of a first center frame, a first pushing component, a second center frame and a second pushing component. The first center frame and the second center frame help to fix the center and realize the center limit connection. The first pushing component and the second pushing component are symmetrically arranged to realize cutting work and continuous cutting work, which is convenient for unified processing purposes. The first pushing component and the second pushing component are connected by a rod body, which can realize the interconnection of the first pushing component and the second pushing component, which is convenient for overall adjustment and control.

[0004] Although the above scheme improves the operating efficiency to a certain extent and realizes automated operation when cutting the container bags, in actual use, the use of a one-way cutting method when cutting the container bags can easily lead to deviations in the cutting process, making the container bags unable to remain stable during cutting, and the cutting edges are not neat enough, and a consistent cutting effect cannot be guaranteed, which reduces the cutting accuracy and affects production efficiency and product quality. Summary of the invention

[0005] The present application solves the technical problems in the prior art of unstable cutting process, low cutting effect, affected cutting accuracy and reduced production efficiency by providing an automated cutting container bag sewing machine, thereby achieving the technical effects of improved cutting process stability, improved cutting effect, improved cutting accuracy and improved production efficiency.

[0006] The present application provides an automated cutting container bag sewing machine, comprising a transmission sewing mechanism, a vertical plate, a first bracket, a first rotating frame, a bottom plate, a second rotating frame, a third rotating frame, a second bracket, a third bracket, a fixed plate, a center frame and a cutting mechanism;

[0007] A sewing machine is provided at the center of the transmission and sewing mechanism for sewing and conveying the bulk bags; the bottom plate is a rectangular steel plate, serving as the basic support of the entire transmission and sewing mechanism; the vertical plate is vertically fixed to the left side of the bottom plate for supporting other components; the first bracket, the second bracket and the third bracket are fixed to the bottom plate in sequence from left to right; the first rotating frame, the second rotating frame and the third rotating frame are all rotatable frame structures, which are respectively fixed on the first bracket, the second bracket and the third bracket, for conveying the bulk bags and adjusting their positions; the fixed plates are provided in two groups and arranged left and right, and each group of fixed plates includes two fixed plates arranged front and back for supporting the cutting mechanism;

[0008] The cutting mechanism is provided with two groups and arranged on the left and right, and is respectively fixed on the bottom plate by a fixing plate. The cutting mechanism is provided with a bidirectionally movable feed plate and a knife groove plate, and is used to cut the container bag by a bidirectionally movable cutting method;

[0009] The center frame is fixed at the middle part above the bottom plate and is located between the two cutting mechanisms, and is used to connect the two cutting mechanisms.

[0010] Further, the cutting mechanism includes a first slide plate, a second slide plate, a feed plate and a knife groove plate;

[0011] The first and second slide plates are each provided with two groups, each group of the first and second slide plates includes two first slide plates and a second slide plate arranged up and down, the first and second slide plates are arranged front to back and are respectively fixed on corresponding fixed plates; the feed plate is a rectangular plate-shaped structure and is slidably connected to the first slide plate through an electromagnetic slider 1; the knife groove plate is a rectangular plate-shaped structure and is slidably connected to the second slide plate through an electromagnetic slider 2, and a plurality of knife grooves are provided on the opposite surfaces of the knife groove plate and the feed plate.

[0012] Furthermore, the magnetism of the electromagnetic slider 1 and the electromagnetic slider 2 are opposite during the cutting process, and when the cutting is completed, the magnetism of the electromagnetic slider 1 and the electromagnetic slider 2 are the same.

[0013] Furthermore, the cutting mechanism also includes a feed assembly for adjusting the position and number of the cutter heads and an adjustment assembly for adjusting the length of the cutter groove;

[0014] The feed assembly includes a first feed rack, a second feed rack, a first bolt, a second bolt, and a cutting head; the first feed rack and the second feed rack are both slidably connected in the feed plate; one end of the first bolt and the second bolt are both slidably connected in the feed plate by a threaded connection, and the other ends thereof are respectively rotatably connected to the first feed rack and the second feed rack by a rotational connection; a plurality of cutting heads are provided, which are evenly fixed on the corresponding first feed rack and the second feed rack.

[0015] Further, the adjustment assembly includes a combination frame, an adjustment bolt and a moving block;

[0016] The combined frame is slidably connected inside the knife groove plate for connecting the moving block; one end of the adjusting bolt is slidably connected inside the knife groove plate by a threaded connection and the other end is connected to the combined frame by a rotating connection for adjusting the position of the moving block in the corresponding knife groove; a plurality of moving blocks are provided and are evenly fixed on the combined frame for cooperating with the cutting head during the cutting process.

[0017] Furthermore, the cutting mechanism also includes a tensioning component for adjusting the tensioning force when cutting the container bag; the tensioning component is provided with two groups, which are arranged in a mirror-like manner up and down and are respectively fixed on the upper and lower ends of the feed plate and the knife groove plate, and are used to longitudinally tension the container bag when cutting.

[0018] Furthermore, the tensioning assembly includes a support rod 1, a support rod 2, a pressing head 1 and a pressing head 2;

[0019] The support rod 1 and the support rod 2 are arranged in a front-to-back mirror image, and are respectively rotatably connected to the knife groove plate and the feed plate by a hinged manner, so as to drive the pressing head 1 and the pressing head 2 to move upward or downward during the movement of the knife groove plate and the feed plate towards each other, thereby longitudinally tightening the upper and lower ends of the container bag; the pressing head 1 and the pressing head 2 are respectively rotatably connected to the support rod 1 and the support rod 2, so as to press and straighten the container bag during the cutting process.

[0020] Furthermore, the pressing head 1 is a fan-shaped structure and is hollow inside, and includes an arc plate, a rotating plate, a contact head and an air bag;

[0021] The arc plate is rotatably connected to the two ends of the support rod by means of a hinge; two rotating plates are provided and arranged front to back, one end of which is connected to the corresponding arc plate, and the other end is hinged to the contact head; the contact head is an arc-shaped structure, which is used to cooperate with the second pressing head to press the container bag and change its tension; the airbag is fixed inside the first pressing head, which is used to push the rotating plates on both sides outward when inflated, thereby changing the angle of the first pressing head.

[0022] Furthermore, the rotating plate is made of hard plastic; the second pressing head is made of rubber, and cooperates with the first pressing head and the rotating plate to form a complete circular structure.

[0023] Furthermore, a plurality of balls are provided at one end where the contact head cooperates with the pressing head, so as to improve the stability of the change of the tensioning force of the container bag.

[0024] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0025] By adopting a bidirectional moving cutting method, the electromagnetic slider 1 and the electromagnetic slider 2 respectively drive the feed plate and the knife slot plate to move toward or away from each other, so that the cutting head inside the feed plate can cut the container bag between the feed plate and the knife slot plate, and at the same time, the feed plate and the knife slot plate can support and fix the cutting position of the container bag, effectively solving the technical problems of unstable cutting process, low cutting effect, affecting cutting accuracy and reducing production efficiency in the prior art, and achieving the technical effects of improved cutting process stability, improved cutting effect, improved cutting accuracy and improved production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 The present invention is a schematic diagram of the overall three-dimensional structure of an automatic cutting container bag sewing machine.

[0027] Figure 2 The present invention is a schematic diagram of the three-dimensional structure of a center frame and a cutting unit of an automated cutting container bag sewing machine.

[0028] Figure 3 The present invention is a schematic diagram of the three-dimensional structure of a cutting unit of an automated cutting container bag sewing machine.

[0029] Figure 4 The invention discloses an automatic cutting container bag sewing machine. Figure 3 A partial enlarged schematic diagram in the middle.

[0030] Figure 5 The present invention is a top view of a cutting unit of an automated cutting container bag sewing machine.

[0031] Figure 6 The invention discloses an automatic cutting container bag sewing machine. Figure 5 Full section view along the BB axis.

[0032] Figure 7 The present invention is a schematic diagram of the three-dimensional structure of a pressing head of an automatic cutting container bag sewing machine.

[0033] Figure 8 The present invention is a partial three-dimensional structural cross-sectional view of a pressing head of an automated cutting container bag sewing machine.

[0034] Fig. 9 It is a three-dimensional schematic diagram of the state switching of a pressing head of an automatic cutting container bag sewing machine according to the present invention.

[0035] Fig.10 The present invention is a schematic diagram of the cutting mechanism of an automatic cutting container bag sewing machine before cutting the container bag.

[0036] Fig.11The present invention is a schematic diagram of the cutting mechanism of an automatic cutting container bag sewing machine when cutting a container bag.

[0037] Fig.12 The present invention is a schematic diagram of the state of a container bag being cut by an automatic cutting container bag sewing machine.

[0038] In the figure: 100, transmission sewing mechanism; 110, vertical plate; 120, first bracket; 130, first rotating frame; 140, bottom plate; 150, second rotating frame; 160, third rotating frame; 170, second bracket; 180, third bracket; 190, fixed plate; 200, center frame; 300, cutting mechanism; 310, first slide plate; 311, electromagnetic slide block 1; 320, second slide plate; 321, electromagnetic slide block 2; 330, feed plate; 340, knife groove plate; 341, knife groove ; 350, feed assembly; 351, first feed rack; 352, second feed rack; 353, first bolt; 354, second bolt; 355, cutting head; 360, adjustment assembly; 361, combination rack; 362, adjustment bolt; 363, moving block; 370, tensioning assembly; 371, support rod one; 373, support rod two; 380, pressing head one; 381, arc plate; 382, ​​rotating plate; 383, contact head; 384, ball; 385, airbag; 390, pressing head two. DETAILED DESCRIPTION

[0039] To facilitate the understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0040] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0042] See also Figure 1, which is a schematic diagram of the overall three-dimensional structure of an automated cutting container bag sewing machine of the present invention; the automated cutting container bag sewing machine of the present application adopts a bidirectional moving cutting method, and the electromagnetic slider 1 311 and the electromagnetic slider 2 321 respectively drive the feed plate 330 inside the first slide plate 310 and the knife groove plate 340 inside the second slide plate 320 to move toward or away from each other, so that the cutting head 355 inside the feed plate 330 can cut the container bag between the feed plate 330 and the knife groove plate 340, and at the same time, the feed plate 330 and the knife groove plate 340 can support and fix the cutting position of the container bag, thereby achieving the technical effects of improved cutting process stability, improved cutting effect, improved cutting accuracy and improved production efficiency.

[0043] Embodiment 1: Figure 1-Figure 6 As shown, the present application discloses an automatic cutting container bag sewing machine, which includes a transmission sewing mechanism 100, a center frame 200 and a cutting mechanism 300;

[0044] The transmission and sewing mechanism 100 is used for conveying and positioning the container bag, and includes the transmission and sewing mechanism 100, the vertical plate 110, the first bracket 120, the first rotating frame 130, the bottom plate 140, the second rotating frame 150, the third rotating frame 160, the second bracket 170, the third bracket 180, the fixed plate 190, the center frame 200 and the cutting mechanism 300;

[0045] The transport and sewing mechanism 100 is provided with a sewing machine at the center for sewing and transporting the container bags;

[0046] The bottom plate 140 is a rectangular steel plate, which serves as the basic support of the entire transmission sewing mechanism 100;

[0047] The vertical plate 110 is vertically fixed to the left side of the bottom plate 140 to support other components;

[0048] The first bracket 120, the second bracket 170 and the third bracket 180 are fixed on the bottom plate 140 in sequence from left to right;

[0049] The first rotating frame 130, the second rotating frame 150 and the third rotating frame 160 are all rotatable frame structures, which are respectively fixed on the first bracket 120, the second bracket 170 and the third bracket 180, and are used to transport the container bag and adjust its position;

[0050] The fixing plates 190 are provided in two groups and arranged left and right, and each group of fixing plates 190 includes two fixing plates 190 arranged front and back, and are used to support the cutting mechanism 300;

[0051] The cutting mechanism 300 is provided with two groups and arranged on the left and right, and is respectively fixed on the bottom plate 140 through the fixing plate 190. The cutting mechanism 300 has a bidirectionally movable feed plate 330 and a knife groove plate 340, which are used to cut the container bag by a bidirectional moving cutting method;

[0052] The center frame 200 is fixed at the middle portion above the bottom plate 140 and is located between the two cutting mechanisms 300 , and is used to connect the two cutting mechanisms 300 .

[0053] like Figure 1-Figure 6 As shown, the cutting mechanism 300 includes a first slide plate 310, a second slide plate 320, a feed plate 330 and a knife groove plate 340;

[0054] The first slide plate 310 and the second slide plate 320 are provided in two groups, each group of the first slide plate 310 and the second slide plate 320 includes two first slide plates 310 and two second slide plates 320 arranged up and down, and the first slide plates 310 and the second slide plates 320 are arranged front and back and are respectively fixed on the corresponding fixing plates 190;

[0055] The feed plate 330 is a rectangular plate structure and is slidably connected to the first slide plate 310 via an electromagnetic slide block 1 311;

[0056] The knife groove plate 340 is a rectangular plate-shaped structure and is slidably connected to the second slide plate 320 via the second electromagnetic slider 321 . A plurality of knife grooves 341 are formed on the opposite surface of the knife groove plate 340 and the knife feed plate 330 .

[0057] The magnetism of the electromagnetic slider 1 311 and the electromagnetic slider 2 321 are opposite during the cutting process. When the cutting is completed, the magnetism of the electromagnetic slider 1 311 and the electromagnetic slider 2 321 are the same.

[0058] The electromagnetic slider 1 311 and the electromagnetic slider 2 321 are used to drive the feed plate 330 and the knife groove plate 340 to move toward and away from each other. They are preferably made of stainless steel or special alloy materials and are controlled by an electromagnetic system. They are all existing technologies and will not be described in detail here.

[0059] The present application adopts a bidirectional moving cutting method to ensure that the feed plate 330 and the knife groove plate 340 can compress and cut the container bag from both sides at the same time. Compared with unidirectional cutting, the total stroke required for cutting is reduced, the cutting efficiency is improved, and the deviation that may be caused by cutting in a single direction is reduced, thereby improving the straightness and edge flatness of the cutting. The driving of the electromagnetic slider 1 311 and the electromagnetic slider 2 321 can not only ensure that the moving speed of the feed plate 330 and the knife groove plate 340 is more uniform and stable during the cutting process, thereby avoiding the problem of uneven cutting caused by fluctuations in a single power source, but also can accurately control the cutting force of the cutting head 355 on the container bag by adjusting the magnetic strength and moving speed of the electromagnetic slider 1 311 and the electromagnetic slider 2 321, thereby adapting to the cutting requirements of container bags of different materials and thicknesses, thereby enhancing the adaptability and flexibility of the equipment.

[0060] When the embodiment of the present application is actually running, the steps are as follows:

[0061] Step 1: The user fixes the sewing machine at the center of the transmission sewing mechanism 100 to complete the equipment installation, connects the container bag to the outside world through the third rotating frame 160, the second rotating frame 150, and the first rotating frame 130 in sequence, and places it between the feed plate 330 and the knife groove plate 340 to achieve the transmission task. Under the action of the first rotating frame 130, the container bag moves to the left and is cut by the cutting mechanism 300;

[0062] Step 2: Start the electromagnetic slider 1 311 and the electromagnetic slider 2 321, and drive the feed plate 330 and the knife groove plate 340 to move toward each other through electromagnetic force, so as to clamp and cut the container bag, thereby completing the continuous cutting process;

[0063] Step 3: After the container bag is cut, start the electromagnetic slider 1 311 and the electromagnetic slider 2 321 to drive the feed plate 330 and the knife groove plate 340 to move back to each other. The sewing machine set in the center of the transmission sewing mechanism 100 can perform sewing work to help it carry out production and processing work.

[0064] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0065] The present application adopts a bidirectional moving cutting method to ensure that the feed plate 330 and the knife groove plate 340 can clamp and cut the container bag from two directions at the same time, reducing the deviation that may be caused by cutting in a single direction, improving the straightness and edge flatness of the cutting, and improving the stability of the cutting process; effectively solving the technical problems in the prior art of unstable cutting process, low cutting effect, affecting cutting accuracy and reducing production efficiency, and achieving the technical effects of improved cutting process stability, improved cutting effect, improved cutting accuracy and improved production efficiency.

[0066] Embodiment 2: In order to further expand the scope of application of the device, make it suitable for cutting container bags of different thicknesses and materials, and improve the flexibility of the device, the present application proposes the following technical solutions for the above technical problems, specifically:

[0067] like Figure 3-Figure 6 As shown, the cutting mechanism 300 further includes a cutting assembly 350 for adjusting the position and number of cutting heads and an adjusting assembly 360 for adjusting the length of the cutting groove 341;

[0068] The feed assembly 350 includes a first feed frame 351, a second feed frame 352, a first bolt 353, a second bolt 354, and a cutting head 355;

[0069] The first tool feed frame 351 and the second tool feed frame 352 are both slidably connected in the tool feed plate 330;

[0070] One end of each of the first bolt 353 and the second bolt 354 is slidably connected in the feed plate 330 by a threaded connection, and the other end thereof is rotatably connected to the first feed frame 351 and the second feed frame 352 respectively by a rotational connection;

[0071] There are multiple cutting heads 355 , which are evenly fixed on the corresponding first feed rack 351 and the second feed rack 352 .

[0072] The adjustment assembly 360 includes a combination frame 361, an adjustment bolt 362 and a moving block 363;

[0073] The assembly frame 361 is slidably connected to the inside of the knife groove plate 340 and is used to connect the moving block 363;

[0074] One end of the adjusting bolt 362 is slidably connected in the knife groove plate 340 by a threaded connection, and the other end is connected to the assembly frame 361 by a rotational connection, so as to adjust the position of the moving block 363 in the corresponding knife groove 341;

[0075] There are multiple moving blocks 363, which are evenly fixed on the assembly frame 361 and are used to cooperate with the cutting head 355 during the cutting process.

[0076] The present application sets a feed assembly 350 and an adjustment assembly 360, and can adjust the position of the corresponding cutting head 355 and the number of cutting heads 355 during feed through the first bolt 353 and the second bolt 354, and then adjust the position and number of cutting points to control the extension of the cutting heads 355 at different positions to achieve customized cutting; the length of the knife groove 341 can be adjusted by adjusting the bolt 362, thereby adapting to the cutting of container bags of different specifications (thickness) and materials, thereby expanding the scope of application.

[0077] Embodiment 3: Considering that the container bag is made of flexible material, when the container bag is cut, the tension during cutting directly affects the stability of the cutting process. If the tension during cutting is too small, it may lead to incomplete cutting. If the tension is too large, the container bag will be broken. In order to prevent incomplete cutting or avoid damage to the container bag during the cutting process, the present application proposes the following technical solutions for the above technical problems, specifically:

[0078] like Figure 3-Figure 6 As shown, the cutting mechanism 300 also includes a tensioning assembly 370 for adjusting the tensioning force when cutting the container bag; the tensioning assembly 370 is provided with two groups, which are arranged in a mirror image up and down and are respectively fixed to the upper and lower ends of the feed plate 330 and the knife groove plate 340, and are used to longitudinally tension the container bag when cutting.

[0079] The tensioning assembly 370 includes a support rod 1 371, a support rod 2 373, a pressing head 1 380 and a pressing head 2 390;

[0080] The support rod 1 371 and the support rod 2 373 are arranged in a front-to-back mirror image, and are respectively rotatably connected to the knife groove plate 340 and the feed plate 330 by a hinged manner, so as to drive the pressing head 1 380 and the pressing head 2 390 to move upward or downward during the process of the knife groove plate 340 and the feed plate 330 moving toward each other, thereby longitudinally tightening the upper and lower ends of the container bag;

[0081] The pressing head 1 380 and the pressing head 2 390 are rotatably connected to the support rod 1 371 and the support rod 2 373 respectively, and are used to press and straighten the container bag during the cutting process.

[0082] In this embodiment, a tensioning assembly 370 is provided to longitudinally tighten the upper and lower ends of the container bag, and the feed plate 330 and the knife groove plate 340 move toward each other to drive the support rod 1 371 and the support rod 2 373 to rotate, thereby driving the pressing head 1 380 and the pressing head 2 390 to press the upper and lower ends of the container bag, so that the pressing head 1 380 and the pressing head 2 390 are straightened in both directions upward and downward along the two ends of the container bag, and then the two ends of the container bag are longitudinally tightened, so that the cutting points are on the same straight line, ensuring the flatness of the container bag during the cutting process, and preventing the cutting position from being offset due to loosening or twisting of the container bag, thereby improving the cutting accuracy and stability.

[0083] The setting of the pressing head 1 380 and the pressing head 2 390 not only provides the necessary tension, but also further ensures that the cutting points are on the same straight line by straightening the ends of the container bag upward and downward, avoiding the use performance of the container bag affected by incomplete cutting or uneven incisions, so that the equipment can adapt to the cutting needs of container bags of different materials and thicknesses, improves the automation and stability of cutting, reduces the need for manual intervention, and thus improves production efficiency. At the same time, by ensuring the smooth progress of the cutting process, it also reduces the risk of accidents caused by improper cutting and improves production safety.

[0084] Embodiment 4: Taking into account the sharpness of the cutter head and the tension force of the container bag during cutting, the two factors have a direct impact on the cutting effect. If the cutter head is not sharp enough due to excessive wear, the tension force controlled during cutting of the container bag must be greater. However, this is more difficult to control for equipment used for a long time. In order to further improve the cutting accuracy and ensure the cutting quality, this application proposes the following technical solutions for the above technical problems, specifically:

[0085] like Figure 8-Figure 12 As shown, the pressing head 1 380 is a fan-shaped structure with a hollow interior, including an arc plate 381, a rotating plate 382, ​​a contact head 383 and an air bag 385;

[0086] The arc plate 381 is rotatably connected to the end of the second support rod 373 by means of a hinge;

[0087] The rotating plates 382 are provided with two and arranged front and back, one end of which is connected to the corresponding arc-shaped plate 381, and the other end is hinged to the contact head 383;

[0088] The contact head 383 is an arc-shaped structure, and is used to cooperate with the second pressing head 390 to press the container bag and change its tension;

[0089] The airbag 385 is fixed inside the pressing head 380 and is used to push the rotating plates 382 on both sides outward when inflated, thereby changing the angle of the pressing head 380.

[0090] The rotating plate 382 is made of hard plastic; the second pressing head 390 is made of rubber, and cooperates with the first pressing head 380 and the rotating plate 382 to form a complete circular structure. The rotating plate 382 is made of hard plastic, and cooperates with the second pressing head 390, which not only enhances durability, but also improves stability during the cutting process, and can more effectively transmit tension, and the second pressing head 390 made of rubber provides better friction and buffering effect.

[0091] A plurality of balls 384 are provided at one end of the contact head 383 that cooperates with the second pressing head 390 to improve the stability of the change in the tensioning force of the container bag.

[0092] A rotating plate 382 is provided to contact the container bag and the rotating plate 382 is made of hard plastic to cooperate with the pressing head 2 390, so that the pressing head 1 380 and the pressing head 2 390 can tighten the straight line where the cutting position of the container bag is located when the cutting head 355 cuts the container bag, so that the incision positions are aligned, and the opening angle of the pressing head 1 380 is flexibly and adaptively controlled in accordance with the specifications of different cutting heads 355, thereby adjusting the tensioning force of the container bag, so that the present application can be used in conjunction with cutting heads 355 with different degrees of wear. If used in conjunction with a cutter head with a large degree of wear, it is only necessary to control the opening angle of the pressing head 1 380 by controlling the expansion amount of the airbag 385, so that the opening angle becomes larger, thereby the tensioning force of the container bag becomes larger; conversely, when used in conjunction with a cutter head with a small degree of wear, the opening angle of the pressing head 1 380 is controlled to become smaller, and its tensioning force becomes smaller.

[0093] The present application adjusts the tension of the container bag by changing the angle of the pressing head 380, and can adapt to the cutting head 355 with different degrees of wear. When the wear of the cutter head increases, the tension can be increased by increasing the opening angle of the pressing head 380 to maintain the cutting effect; otherwise, the opening angle is reduced to reduce the tension; the pressing head 380 and the pressing head 2 390 are combined into a complete circle, and the straight line where the cutting position of the container bag is located is tightened during cutting to ensure that the incision position is aligned, thereby improving the cutting accuracy and reducing the problems caused by the offset of the cutting position or the uneven incision; the air bag 385 is set to control the opening angle of the rotating plate 382, ​​and the tension of the container bag during cutting is adaptively adjusted, which reduces the maintenance work of frequently replacing or adjusting the cutter head due to the wear of the cutter head, so that the equipment can maintain efficient cutting capacity for a longer time, thereby improving production efficiency. At the same time, for container bags of different specifications and materials, it can also be flexibly responded to by adjusting the opening angle of the pressing head 380, thereby increasing the applicability of the equipment.

[0094] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic cutting container bag sewing machine, characterized in that: It comprises a transmission sewing mechanism (100), a vertical plate (110), a first bracket (120), a first rotating frame (130), a bottom plate (140), a second rotating frame (150), a third rotating frame (160), a second bracket (170), a third bracket (180), a fixed plate (190), a center frame (200) and a cutting mechanism (300); A sewing machine is provided at the center of the transmission and sewing mechanism (100) for sewing and conveying bulk bags; the bottom plate (140) is a rectangular steel plate, serving as the basic support of the entire transmission and sewing mechanism (100); the vertical plate (110) is vertically fixed to the left side of the bottom plate (140) for supporting other components; the first bracket (120), the second bracket (170) and the third bracket (180) are fixed on the bottom plate (140) in sequence from left to right; the first rotating frame (130), the second rotating frame (150) and the third rotating frame (160) are all rotatable frame structures, which are respectively fixed on the first bracket (120), the second bracket (170) and the third bracket (180) for conveying bulk bags and adjusting their positions; The fixing plates (190) are provided in two groups and arranged left and right, and each group of fixing plates (190) includes two fixing plates (190) arranged front and back, and are used to support the cutting mechanism (300); The cutting mechanism (300) is provided with two groups and arranged on the left and right, and is respectively fixed on the bottom plate (140) through the fixing plate (190). The cutting mechanism (300) is provided with a bidirectionally movable feed plate (330) and a knife groove plate (340), and is used to cut the container bag by a bidirectionally movable cutting method; The center frame (200) is fixed at the middle part above the bottom plate (140) and is located between the two cutting mechanisms (300) and is used to connect the two cutting mechanisms (300).

2. The automatic cutting container bag sewing machine according to claim 1, characterized in that: The cutting mechanism (300) comprises a first slide plate (310), a second slide plate (320), a feed plate (330) and a knife groove plate (340); the first slide plate (310) and the second slide plate (320) are each provided with two groups, each group of the first slide plate (310) and the second slide plate (320) comprises two first slide plates (310) and two second slide plates (320) arranged up and down, the first slide plate (310) and the second slide plate (320) are arranged front and back and are respectively fixed on corresponding fixed plates (190); the feed plate (330) is a rectangular plate-shaped structure and is slidably connected to the first slide plate (310) through an electromagnetic slider 1 (311); the knife groove plate (340) is a rectangular plate-shaped structure and is slidably connected to the second slide plate (320) through an electromagnetic slider 2 (321), and a plurality of knife grooves (341) are provided on the opposite surface of the knife groove plate (340) and the feed plate (330).

3. The automatic cutting container bag sewing machine according to claim 2, characterized in that: The magnetism of the electromagnetic slider 1 (311) and the electromagnetic slider 2 (321) is opposite during the cutting process. When the cutting is completed, the magnetism of the electromagnetic slider 1 (311) and the electromagnetic slider 2 (321) are the same.

4. The automatic cutting container bag sewing machine according to claim 3, characterized in that: The cutting mechanism (300) further comprises a feed assembly (350) for adjusting the position and number of the cutter heads and an adjustment assembly (360) for adjusting the length of the cutter groove (341); the feed assembly (350) comprises a first feed frame (351), a second feed frame (352), a first bolt (353), a second bolt (354) and a cutting cutter head (355); the first feed frame (351) and the second feed frame (352) are both slidably connected in the feed plate (330); one end of the first bolt (353) and the second bolt (354) are both slidably connected in the feed plate (330) by means of a threaded connection, and the other ends thereof are respectively rotatably connected to the first feed frame (351) and the second feed frame (352) by means of a rotatable connection; a plurality of cutting cutter heads (355) are provided, and are evenly fixed on the corresponding first feed frame (351) and the second feed frame (352).

5. The automatic cutting container bag sewing machine according to claim 4, characterized in that: The adjustment assembly (360) comprises a combination frame (361), an adjustment bolt (362) and a moving block (363); The assembly frame (361) is slidably connected inside the knife groove plate (340) and is used to connect the moving block (363); one end of the adjusting bolt (362) is slidably connected inside the knife groove plate (340) by a threaded connection and the other end is connected to the assembly frame (361) by a rotational connection, so as to adjust the position of the moving block (363) in the corresponding knife groove (341); a plurality of moving blocks (363) are provided and are evenly fixed on the assembly frame (361) and are used to cooperate with the cutting head (355) during the cutting process.

6. The automatic cutting container bag sewing machine according to claim 5, characterized in that: The cutting mechanism (300) also includes a tensioning assembly (370) for adjusting the tensioning force when cutting the container bag; the tensioning assembly (370) is provided with two groups, arranged in an upper and lower mirror image, and respectively fixed to the upper and lower ends of the feed plate (330) and the knife groove plate (340), and is used to longitudinally tension the container bag when cutting.

7. The automatic cutting container bag sewing machine according to claim 6, characterized in that: The tensioning assembly (370) comprises a support rod 1 (371), a support rod 2 (373), a pressing head 1 (380) and a pressing head 2 (390); The support rod 1 (371) and the support rod 2 (373) are arranged in a front-to-back mirror image, and are respectively rotatably connected to the knife groove plate (340) and the feed plate (330) by means of a hinge, and are used to drive the pressing head 1 (380) and the pressing head 2 (390) to move upward or downward during the process of the knife groove plate (340) and the feed plate (330) moving toward each other, thereby longitudinally tightening the upper and lower ends of the container bag; the pressing head 1 (380) and the pressing head 2 (390) are respectively rotatably connected to the support rod 1 (371) and the support rod 2 (373), and are used to press and straighten the container bag during the cutting process.

8. The automatic cutting container bag sewing machine according to claim 7, characterized in that: The pressing head 1 (380) is a fan-shaped structure and is hollow inside, and comprises an arc plate (381), a rotating plate (382), a contact head (383) and an air bag (385); The arc plate (381) is rotatably connected to the end of the second support rod (373) by means of a hinge; two rotating plates (382) are provided and arranged front to back, one end of which is connected to the corresponding arc plate (381) and the other end is hinged to the contact head (383); the contact head (383) is an arc-shaped structure, which is used to cooperate with the second pressing head (390) to press the container bag and change its tension; the airbag (385) is fixed inside the pressing head (380) and is used to push the rotating plates (382) on both sides outward when expanded, thereby changing the angle of the pressing head (380).

9. The automatic cutting container bag sewing machine according to claim 8, characterized in that: The rotating plate (382) is made of hard plastic; the second pressing head (390) is made of rubber, and cooperates with the first pressing head (380) and the rotating plate (382) to form a complete circular structure.

10. The automatic cutting container bag sewing machine according to claim 9, characterized in that: One end of the contact head (383) that cooperates with the second pressing head (390) is provided with a plurality of balls (384) for improving the stability of the change of the tensioning force of the container bag.

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