A plastic woven bag cutting and sewing device

Abstract

The utility model discloses a kind of plastic braided bag slit cutting devices, it is related to slit cutting technical field.A kind of plastic braided bag slit cutting device, including base, tensioning roller, support frame, second cylinder and fixed connecting seat groove, the inside of support frame is provided with limiting component, limiting component includes connecting seat, cutting assembly and two protective shells, two protective shells are fixedly connected in connecting seat two sides outer wall correspondence, when pulling pull rod in limiting component, limiting plate slides in second limiting plate groove, while compression reset spring, make the end of limiting plate close to first limiting plate groove in upper end two sides of slit cutting assembly from first limiting plate groove in slit cutting assembly, release the limiting fixing of slit cutting assembly, slit cutting assembly is fixed only by the magnetic attraction of magnetic attraction base and magnetic block at this time, it can be taken out downward after overcoming magnetic force, such disassembly slit cutting assembly simple and fast, avoid staff to disassemble it by means of wrench and other tools.

Description

Technical Field

[0001] This utility model relates to the field of cutting and sewing technology, and in particular to a cutting and sewing device for plastic woven bags. Background Technology

[0002] In modern industrial production systems, woven plastic bags are widely used in agriculture, chemical industry, building materials and other fields due to their low cost, high strength, moisture resistance and wear resistance. With the continuous growth of market demand, the production efficiency and product quality of woven plastic bags have become the core elements of enterprise competition. As a key piece of equipment in the woven plastic bag production line that realizes the integrated processing of cutting and sewing, the performance of the cutting and sewing device directly determines the quality and production efficiency of the finished woven bags. The cutting blade, as the core execution component of the cutting and sewing device, undertakes the important function of cutting the continuous woven fabric into shape and sewing the bag opening. Its installation stability and disassembly convenience are key factors affecting the reliability of equipment operation, maintenance costs and product qualification rate.

[0003] Currently, most plastic woven bag cutting devices on the market still use the traditional bolt fixing method to install the cutting blade. In actual operation, operators need to use tools such as screwdrivers and wrenches to tighten multiple fixing bolts one by one to complete the installation or removal of the cutting blade. For manufacturing enterprises, daily equipment maintenance and blade replacement are frequent and necessary operations. The cumbersome bolt disassembly and assembly process not only consumes a lot of time, but also increases labor costs. In the industrial production scenario where time is money, long-term equipment downtime for maintenance will undoubtedly reduce the overall operating efficiency of the production line and affect the enterprise's production capacity and order delivery schedule. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a plastic woven bag cutting device that can solve the problem of bolt fixing for installing the cutting blade. In actual operation, operators need to use tools such as screwdrivers and wrenches to tighten multiple fixing bolts one by one to complete the installation or removal of the cutting blade. For manufacturing enterprises, daily equipment maintenance and blade replacement are frequent and necessary operations. The cumbersome bolt disassembly and assembly process not only consumes a lot of time, but also increases labor costs. In the industrial production scenario where time is money, long-term equipment downtime for maintenance will undoubtedly reduce the overall operating efficiency of the production line and affect the enterprise's production capacity and order delivery schedule.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastic woven bag cutting and sewing device, comprising a base, a tension roller, a support frame, a second cylinder, and a fixed connecting seat groove, wherein the support frame is provided with a limit component inside;

[0006] The limiting component includes a connecting seat, a cutting component, and two protective shells. The two protective shells are fixedly connected to the outer walls on both sides of the connecting seat. A fixed connecting seat groove is provided on the lower surface of the connecting seat. The upper outer wall of the cutting component is slidably connected to the inside of the fixed connecting seat groove. A magnetic block is fixedly installed on the inner wall of the fixed connecting seat groove.

[0007] The upper outer wall of the cutting component is fixedly installed with a magnetic base. The upper outer walls of the cutting component are provided with first limiting plate grooves on both sides. The inner walls of the base are provided with second limiting plate grooves on both sides. Limiting plates are slidably connected inside the two second limiting plate grooves. Pull rods are slidably connected to the outer walls of the two protective shells. Return springs are sleeved on the outer walls of the two pull rods.

[0008] Preferably, the magnetic base is used in conjunction with the magnetic block, and the outer walls of the four T-shaped blocks at the upper end of the cutting component are slidably connected to the inner walls of the four T-shaped block slots of the fixed connection seat groove.

[0009] The two limiting plates extend slidably into the interior of the fixed connection seat groove at the end closest to the first limiting plate groove and are slidably connected to the interior of the corresponding first limiting plate groove, respectively. The interiors of the two protective shells are respectively connected to the interiors of the corresponding second limiting plate grooves.

[0010] Preferably, the ends of the two pull rods near the limiting plate both slide into the interior of the second limiting plate groove and are fixedly connected to the outer wall of the corresponding limiting plate, respectively.

[0011] Among them, the two sliding rods slidably connected on the two protective shells extend into the interior of the second limiting plate groove at one end and are fixedly connected to the outer wall of the corresponding limiting plate respectively.

[0012] Preferably, the two ends of the two reset springs are fixedly connected to the outer wall of the corresponding limiting plate and the inner wall of the protective shell, respectively;

[0013] The cutting assembly consists of a mounting base and a cutting blade.

[0014] Preferably, the support frame is U-shaped, and two convex plates on the upper surface of the base are rotatably connected to guide rollers. The base is fixedly installed on the upper surface of the base, and the second cylinder is fixedly installed on the upper surface of the support frame.

[0015] Among them, the two sliding rods that are slidably connected to the upper surface of the support frame extend into the interior of the support frame at their ends and are fixedly connected to the upper surface of the connecting seat. The output end of the second cylinder extends into the interior of the support frame and is fixedly connected to the upper surface of the connecting seat.

[0016] Preferably, a first cylinder is fixedly installed inside the grooves on both sides of the upper end of the fixed frame, and the outer wall of the support seat on the rotating shaft at both ends of the tension roller is slidably connected to the grooves on the outer walls on both sides of the fixed frame.

[0017] Among them, the output ends of the two first cylinders slide to the slots on both sides of the fixed frame and are fixedly connected to the outer wall of the support seat on the rotating shaft at both ends of the tension roller, and the guide roller is located between the tension roller and the support frame.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. In this plastic woven bag cutting device, when the pull rod is pulled in the limiting assembly, the limiting plate slides in the second limiting plate groove, and at the same time, the return spring is compressed, so that the end of the limiting plate near the first limiting plate groove exits from the first limiting plate groove on both sides of the upper end of the cutting assembly, releasing the limiting fixation of the cutting assembly. At this time, the cutting assembly, which is fixed only by the magnetic attraction between the magnetic base and the magnetic block, can be taken out downward after overcoming the magnetic force. This makes the disassembly of the cutting assembly simple and quick, avoiding the need for workers to use wrenches or other tools to disassemble it, effectively improving the practicality and flexibility of the equipment. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the external structure of the slit cutting assembly of this utility model;

[0023] Figure 3 This is a schematic diagram of the external structure of the guide roller of this utility model;

[0024] Figure 4 This utility model Figure 2 A structural schematic diagram of the enlarged view at point A in the middle.

[0025] Reference numerals: 1. Base; 2. First cylinder; 3. Tensioning roller; 4. Return spring; 5. Guide roller; 6. Support frame; 7. Second cylinder; 8. Connecting seat; 9. Cutting assembly; 10. Protective shell; 11. Pull rod; 12. Fixed connecting seat groove; 13. Fixing frame; 14. First limiting plate groove; 15. Magnetic base; 16. Second limiting plate groove; 17. Limiting plate; 18. Magnetic block. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Please see Figure 1-4 This utility model provides a technical solution: a plastic woven bag cutting and sewing device, including a base 1, a tension roller 3, a support frame 6, a second cylinder 7 and a fixed connecting seat groove 12;

[0031] The support frame 6 is equipped with a limit component inside;

[0032] The limiting assembly includes a connecting base 8, a cutting component 9, and two protective shells 10. The two protective shells 10 are fixedly connected to the outer walls on both sides of the connecting base 8. A fixed connecting groove 12 is formed on the lower surface of the connecting base 8. The upper outer wall of the cutting component 9 is slidably connected to the inside of the fixed connecting groove 12. A magnetic block 18 is fixedly installed on the inner wall of the fixed connecting groove 12. A magnetic base 15 is fixedly installed on the upper outer wall of the cutting component 9. The magnetic base 15 works in conjunction with the magnetic block 18. The outer walls of the four T-shaped blocks at the upper end of the cutting component 9 are slidably connected to the inside of the four T-shaped block slots on the inner wall of the fixed connecting groove 12. A first limiting plate groove 14 is formed on both sides of the upper outer wall of the cutting component 9. A second limiting plate groove 16 is formed on both sides of the inner wall of the base 1. A limiting plate 17 is slidably connected inside the two second limiting plate grooves 16. The two limiting plates 17 are close to the first limiting plate grooves 14. One end of each of the two protective shells 10 slides into the interior of the fixed connection slot 12 and is slidably connected to the interior of the corresponding first limiting plate slot 14. The interiors of the two protective shells 10 are respectively connected to the interiors of the corresponding second limiting plate slots 16. The outer walls of the two protective shells 10 are slidably connected with pull rods 11. The ends of the two pull rods 11 near the limiting plate 17 slide into the interior of the second limiting plate slot 16 and are respectively fixedly connected to the outer walls of the corresponding limiting plate 17. The ends of the two sliding rods slidably connected on the two protective shells 10 near the limiting plate 17 slide into the interior of the second limiting plate slot 16 and are respectively fixedly connected to the outer walls of the corresponding limiting plate 17. The outer walls of the two pull rods 11 are each sleeved with a return spring 4. The two ends of the two return springs 4 are respectively fixedly connected to the outer walls of the corresponding limiting plate 17 and the inner walls of the protective shells 10. The cutting assembly 9 consists of a mounting base and a cutting blade.

[0033] The support frame 6 is U-shaped. Two convex plates on the upper surface of the base 1 are rotatably connected to guide rollers 5. The base 1 is fixedly installed on the upper surface of the base 1. The second cylinder 7 is fixedly installed on the upper surface of the support frame 6. Two sliding rods slidably connected to the upper surface of the support frame 6 extend into the interior of the support frame 6 and are fixedly connected to the upper surface of the connecting seat 8. The output end of the second cylinder 7 extends into the interior of the support frame 6 and is fixedly connected to the upper surface of the connecting seat 8. The first cylinder 2 is fixedly installed in the grooves on both sides of the upper end of the fixed frame 13. The outer wall of the support seat on the rotating shaft at both ends of the tension roller 3 is slidably connected to the grooves on both sides of the outer wall of the fixed frame 13. The output ends of the two first cylinders 2 extend into the grooves on both sides of the fixed frame 13 and are fixedly connected to the outer wall of the support seat on the rotating shaft at both ends of the tension roller 3. The guide roller 5 is located between the tension roller 3 and the support frame 6.

[0034] Furthermore, when using the device, a plastic woven bag is placed on the device and passes through the tension roller 3 and guide roller 5 in sequence. The guide roller 5 is installed on the upper surface of the base 1 with two opposing convex plates. By rotating, it guides the woven bag to accurately enter the cutting area. The support seats on the rotating shafts at both ends of the tension roller 3 are slidably connected to the outer walls of the fixed frame 13 on both sides through grooves. At this time, the first cylinder 2 in the grooves on both sides of the upper end of the fixed frame 13 is activated. The output end of the first cylinder 2 pushes the support seats at both ends of the tension roller 3, causing the tension roller 3 to move downward or up and down, thereby applying tension to the woven bag and ensuring that the woven bag remains flat and stable during the subsequent cutting process, avoiding uneven cutting due to slack. Then, the second cylinder 7 is activated. The second cylinder 7 is fixedly installed on the upper surface of the "U"-shaped support frame 6, and its output end is connected to the upper surface of the connecting seat 8. The output end of the second cylinder 7 extends and retracts downward, causing the connecting seat 8 to slide down along the inside of the support frame 6. Since the cutting component 9 slides through the four T-shaped blocks at the upper end and the four T-shaped block grooves on the inner wall of the fixed connecting seat groove 12, the cutting component 9 is slidably connected to the four T-shaped blocks in the grooves of the fixed connecting seat 12. The cutting assembly 9 is dynamically connected, and its upper outer wall slides into the fixed connection slot 12. Therefore, the connecting seat 8 will cause the cutting assembly 9 to move downwards. When the cutting assembly 9 approaches the woven bag, the cutting blade in the cutting assembly 9 begins to cut the woven bag. Then, when the cutting assembly 9 needs to be replaced or maintained, the pull rod 11, which is slidably connected to the outer wall of the protective shell 10, is pulled. The end of the pull rod 11 near the limiting plate 17 is fixedly connected to the limiting plate 17, and a return spring 4 is sleeved on the outer wall of the pull rod 11. 4. Both ends are connected to the outer wall of the limiting plate 17 and the inner wall of the protective shell 10, respectively. When the pull rod 11 is pulled, the limiting plate 17 slides in the second limiting plate groove 16, and at the same time, the return spring 4 is compressed, so that the end of the limiting plate 17 near the first limiting plate groove 14 exits from the first limiting plate groove 14 on both sides of the upper end of the cutting assembly 9, releasing the limiting fixation of the cutting assembly 9. At this time, the cutting assembly 9, which is fixed only by the magnetic attraction of the magnetic base 15 and the magnetic block 18, can be taken out downward after overcoming the magnetic force, and the replacement or maintenance can be completed.

[0035] When the pull rod 11 is pulled through the limiting assembly, the limiting plate 17 slides within the second limiting plate groove 16, simultaneously compressing the return spring 4. This causes the end of the limiting plate 17 near the first limiting plate groove 14 to exit from the first limiting plate groove 14 on both sides of the upper end of the cutting assembly 9, releasing the limiting fixation of the cutting assembly 9. At this point, the cutting assembly 9, which is fixed solely by the magnetic attraction of the magnetic base 15 and the magnetic block 18, can be removed downwards after overcoming the magnetic force. This makes disassembling the cutting assembly 9 simple and quick, avoiding the need for workers to use wrenches or other tools to disassemble it, effectively improving the practicality and flexibility of the equipment.

[0036] Structural Description: Base 1: As the basic support structure of the entire device, it provides an installation platform for other components. The upper surface of the base has a convex plate for mounting the guide roller 5 and a part for fixing the support frame 6. The inner walls on both sides have second limiting plate grooves 16 for mounting the limiting plate 17 to ensure the sliding guidance and positioning of the limiting plate 17.

[0037] Guide roller 5: Rotatably connected to the two opposing surfaces of the convex plates on the upper surface of the base 1, it changes the conveying direction of the woven bag by its own rotation, so that the woven bag can pass smoothly through the tension roller 3 and enter the working area of ​​the cutting component 9, playing a guiding and initial positioning role;

[0038] Tensioning roller 3: The support seats on the two ends of the rotating shaft are slidably connected to the outer walls of the two sides of the fixed frame 13 through grooves. It can move up and down under the drive of the first cylinder 2. By applying tension to the woven bag, it ensures that the woven bag is in a tight state during the cutting process, thereby improving the cutting quality.

[0039] First cylinder 2: It is fixedly installed inside the grooves on both sides of the upper end of the fixed frame 13. The output end is fixedly connected to the outer wall of the support seat on the rotating shaft at both ends of the tension roller 3. Through the extension and retraction movement of the output end, the up and down movement distance of the tension roller 3 is precisely controlled, thereby adjusting the tension of the woven bag.

[0040] Support frame 6: It has a "U" shaped structure and is fixedly installed on the upper surface of the base 1. It has a limiting component inside to provide installation and movement space for components such as connecting seat 8 and cutting component 9. The upper surface is fixed with a second cylinder 7 to provide power for the up and down movement of the cutting component 9.

[0041] Second cylinder 7: Installed on the upper surface of support frame 6, the output end slides into the inside of support frame 6 and is fixedly connected to the upper surface of connecting seat 8. Through the extension and retraction of the output end, the connecting seat 8 and the cutting component 9 are moved up and down, so that the cutting component 9 can move closer to or away from the woven bag to complete the cutting operation.

[0042] Connecting seat 8: A fixed connecting seat groove 12 is opened on the lower surface for installing the cutting component 9. Protective shells 10 are fixedly connected to the outer walls on both sides. Driven by the second cylinder 7, the cutting component 9 moves up and down inside the support frame 6.

[0043] Cutting component 9: It consists of a mounting base and a cutting blade. The upper end is slidably connected to the T-shaped block groove on the inner wall of the fixed connection seat groove 12 through four T-shaped blocks to achieve stable installation and sliding. The upper end has first limiting plate grooves 14 on both sides, which cooperate with the limiting plate 17 to achieve fixation. The magnetic base 15 on the outer wall of the upper end cooperates with the magnetic block 18 on the inner wall of the fixed connection seat groove 12 to provide auxiliary fixing force. Its core component, the cutting blade, is used for cutting and sewing woven bags.

[0044] Protective shell 10: It is fixed on the outer walls of both sides of the connecting seat 8 and communicates with the second limiting plate groove 16 inside. It provides installation space and protection for components such as pull rod 11 and return spring 4, and guides the sliding of pull rod 11.

[0045] Pull rod 11: It is slidably connected to the outer wall of the protective shell 10, and one end is fixedly connected to the limiting plate 17. By pulling pull rod 11, the limiting plate 17 is driven to slide in the second limiting plate groove 16, so as to realize the limiting and fixing and releasing of the cutting component 9.

[0046] Return spring 4: It is sleeved on the outer wall of the pull rod 11, and its two ends are respectively connected to the outer wall of the limiting plate 17 and the inner wall of the protective shell 10. After the pull rod 11 is pulled, it generates elastic deformation. When the pull rod 11 is released, the elastic force is used to reset the limiting plate 17, ensuring the fixed stability of the cutting component 9.

[0047] Limiting plate 17: It is slidably connected inside the second limiting plate groove 16, and one end can slide to the first limiting plate groove 14 of the cutting assembly 9. By cooperating with the first limiting plate groove 14, it restricts the movement of the cutting assembly 9 in the fixed connection seat groove 12, and ensures that the cutting assembly 9 is fixed in position when working.

[0048] Magnetic block 18: It is fixedly installed on the inner wall of the fixed connection seat groove 12 and attracts each other with the magnetic base 15 on the upper outer wall of the cutting assembly 9, providing initial fixing force for the cutting assembly 9 and enhancing the stability of the installation of the cutting assembly 9.

[0049] Magnetic base 15: Fixed to the upper outer wall of the cutting component 9, cooperating with the magnetic block 18 to realize the magnetic connection between the cutting component 9 and the fixed connection seat groove 12, and the auxiliary limiting plate 17 to fix the cutting component 9;

[0050] Fixed frame 13: used to install the first cylinder 2. The grooves on both sides of its outer wall provide sliding tracks for the support seats on the rotating shafts at both ends of the tension roller 3, and cooperate with the first cylinder 2 to realize the up and down movement control of the tension roller 3.

[0051] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A plastic woven bag cutting and sewing device, comprising a base (1), a tensioning roller (3), a supporting frame (6), a second air cylinder (7) and a fixed connecting seat groove (12), the top of the base (1) is provided with a fixed frame (13), characterized in that: The inside of the support frame (6) is provided with a limiting assembly; The limiting assembly comprises a connecting seat (8), a cutting assembly (9) and two protective shells (10), the two protective shells (10) are fixedly connected on the outer walls of the two sides of the connecting seat (8), a fixed connecting seat groove (12) is formed in the lower surface of the connecting seat (8), the outer wall of the upper end of the cutting assembly (9) is slidably connected with the inside of the fixed connecting seat groove (12), and a magnetic suction block (18) is fixedly installed on the inner wall of the fixed connecting seat groove (12); The outer wall of the upper end of the cutting assembly (9) is fixedly installed with a magnetic suction base (15), the outer walls of the two sides of the upper end of the cutting assembly (9) are both provided with a first limiting plate groove (14), the inner walls of the two sides of the base (1) are both provided with a second limiting plate groove (16), the inside of each of the two second limiting plate grooves (16) is slidably connected with a limiting plate (17), and the outer wall of each of the two protective shells (10) is slidably connected with a pull rod (11), and the outer wall of each of the two pull rods (11) is sleeved with a reset spring (4).

2. A plastic woven bag slitting apparatus as claimed in claim 1 wherein: The magnetic suction base (15) is used in cooperation with the magnetic suction block (18), and the outer walls of the four T-shaped blocks of the upper end of the cutting assembly (9) are slidably connected with the four T-shaped block grooves in the inner wall of the fixed connecting seat groove (12); The end of each of the two limiting plates (17) close to the first limiting plate groove (14) is slidably extended into the inside of the fixed connecting seat groove (12) and is slidably connected with the inside of the corresponding first limiting plate groove (14), and the inside of each of the two protective shells (10) is communicated with the inside of the corresponding second limiting plate groove (16).

3. A plastic woven bag slitting apparatus as claimed in claim 1, wherein: The end of each of the two pull rods (11) close to the limiting plate (17) is slidably extended into the inside of the second limiting plate groove (16) and is fixedly connected with the outer wall of the corresponding limiting plate (17); The end of each of the two protective shells (10) close to the limiting plate (17) is slidably extended into the inside of the second limitation plate groove (16) and is fixedly connected with the outer wall of the corresponding limiting plate.

4. A plastic woven bag slitting apparatus as claimed in claim 1, wherein: The two ends of each of the two reset springs (4) are fixedly connected with the outer wall of the corresponding limiting plate (17) and the inner wall of the protective shell (10); The cutting assembly (9) is composed of a mounting seat and a cutting knife.

5. A plastic woven bag slitting apparatus as claimed in claim 1, wherein: The support frame (6) is in a "U" shape, the upper surface of the base (1) is rotatably connected with a guide roller (5) through two convex plates opposite to each other, the base (1) is fixedly installed on the upper surface of the base (1), and the second air cylinder (7) is fixedly installed on the upper surface of the support frame (6); The end of each of the two slide rods slidably connected with the upper surface of the support frame (6) close to the support frame (6) is slidably extended into the inside of the support frame (6) and is fixedly connected with the upper surface of the connecting seat (8), and the output end of the second air cylinder (7) is slidably extended into the inside of the support frame (6) and is fixedlyconnected with the upper surface of the connecting seat (8).

6. A plastic woven bag slitting apparatus as claimed in claim 1, wherein: The outer wall of the support seat on the rotating shaft of the two ends of the tensioning roller (3) is slidably connected with the grooves formed in the two side walls of the fixed frame (13) in a corresponding mode. The output ends of the two first air cylinders (2) slide to the inside of the grooves on both sides of the fixing frame (13) and are fixedly connected with the outer wall of the supporting seat on the two ends of the tension roller (3). The guide roller (5) is located between the tension roller (3) and the supporting frame (6).

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