Automatic feeding and cutting device for geomembrane coil stock

Abstract

The utility model relates to the technical field of geomembrane processing, and provides an automatic geomembrane roll material feeding and cutting device which comprises a cutting assembly and a driving assembly. The cutting assembly comprises a first air cylinder and a second air cylinder, a first tool apron and a second tool apron are fixedly installed at the output end of the first air cylinder and the output end of the second air cylinder correspondingly, and a first cutter and a second cutter are fixedly installed on the opposite sides of the first tool apron and the second tool apron correspondingly. One side of the first tool apron and one side of the second tool apron are fixedly connected with a guide block; the geomembrane cutting device has the advantages that the tool nose at the longitudinal lower end of the first cutter can directly pierce a geomembrane to form an initial crevasse, and notch deformation caused by uneven jacking force distribution is reduced; the inclined blade face of the second cutter is matched, the two cutters are driven by the two-way lead screw to synchronously cut off from the middle to the two sides, notch deformation caused by uneven distribution of initial jacking force of the blades is avoided, double-cutter cutting is adopted, the cutting stroke is only half of that of a single cutter, and the cutting-off and resetting time is remarkably shortened.

Description

Technical Field

[0001] This utility model relates to the field of geomembrane processing technology, specifically to an automatic feeding and cutting device for geomembrane rolls. Background Technology

[0002] In existing technologies, automatic feeding and cutting of geomembrane rolls often employs a single-blade structure. A drive mechanism moves the single blade along the width of the roll, coordinating with the feeding rhythm to complete the cutting operation. This method is widely used in the geomembrane processing field and can meet basic roll cutting requirements.

[0003] However, in the automatic feeding and cutting process of wide geomembrane rolls, if a single blade is used to cut from one side to the other, the cutting stroke needs to cover the entire width, which makes the cutting and repositioning of the geomembrane take a long time. At the same time, after the single blade contacts the side of the roll, it squeezes the geomembrane through lateral force to form a tear and completes the cutting along the width direction. The separating force is mainly concentrated at the point of action of the blade, and the uneven distribution of the force can easily affect the flatness of the cut. Utility Model Content

[0004] The purpose of this invention is to provide an automatic feeding and cutting device for geomembrane rolls to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic feeding and cutting device for geomembrane rolls, comprising a cutting component and a driving component;

[0006] The cutting assembly includes a first cylinder and a second cylinder. The output ends of the first cylinder and the second cylinder are respectively fixedly mounted with a first blade holder and a second blade holder. The first cutter and the second cutter are respectively fixedly mounted on opposite sides of the first blade holder and the second blade holder. A guide block is fixedly connected to one side of the first blade holder and the second blade holder.

[0007] The first cutter has a tip extending from its lower end, while the lower end face of the second cutter has a smooth transition. The side edge of the second cutter is inclined along its length, and the upper end face of the tip is flush with the lower end face of the second cutter, with a smooth transition between the tip and the side edge. This design ensures continuous force when the two cutters initially contact the geomembrane, avoiding localized material stretching caused by the step at the cutting edge and ensuring a smooth cut. The tip of the first cutter can quickly pierce the geomembrane to form an initial tear, while the inclined blade of the second cutter can gradually cut into the geomembrane through the inclined force component, forming two independent V-shaped tears in conjunction with the first cutter.

[0008] Preferably, the drive assembly includes a support frame, on which a bidirectional lead screw is laterally rotatably connected. Two sliders are threaded onto the middle of the bidirectional lead screw. The first and second cylinders are respectively fixedly mounted on the upper ends of the two sliders. Guide grooves are formed on one side of each slider, and guide blocks are slidably connected to the guide grooves. The guide grooves on the sliders and the guide blocks on the cutter holder form a sliding fit, which constrains the vertical movement trajectory of the cutter holder, preventing it from swaying due to force during cutting, ensuring that the cutter always contacts the geomembrane at a vertical angle, and guaranteeing the straightness of the cut.

[0009] Preferably, a servo motor is fixedly installed on the support frame corresponding to the bidirectional lead screw, and the output end of the servo motor is fixedly connected to the bidirectional lead screw. By controlling the speed and direction of the motor, the moving distance and speed of the slider can be precisely adjusted, realizing the rapid adjustment of the cutter spacing, which can adapt to the cutting needs of geomembranes of different widths.

[0010] Preferably, a limiting groove is provided at the lower end of the support frame, and a limiting block is fixedly connected to the upper end of each of the two sliders. The limiting block is slidably connected to the limiting groove. The limiting groove limits the slider, which can prevent the slider from jamming or tilting during the lateral movement of the cutter, and ensure that the cutter always moves along the preset trajectory.

[0011] Preferably, both the first and second tool holders have a concave structure design, and the first and second cutters are connected to the first and second tool holders by bolts. The concave structure provides mounting space for the cutters, enhancing the connection stability between the cutters and the tool holders.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) The tip of the first cutter at the lower longitudinal end can directly pierce the geomembrane to form an initial opening, reducing the deformation of the cut caused by uneven distribution of top force; in conjunction with the inclined blade of the second cutter, the two cutters cut synchronously from the middle to both sides under the drive of the bidirectional screw, avoiding the deformation of the cut caused by uneven distribution of the initial top force of the blade, and the double-blade cutting method reduces the cutting stroke to only half that of the single-blade cutting method, significantly shortening the cutting and resetting time.

[0014] (2) The membrane is cut from the middle to both sides simultaneously by the first and second cutters. Even if the membrane is slightly offset during the rolling and conveying process, the cutting starting point of the double cutters is still based on the middle of the membrane. This can reduce the deviation of the cut position caused by the overall offset and improve the cutting accuracy of wide geomembrane. Attached Figure Description

[0015] Figure 1 This is a front view of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the initial state of the first cutter and the second cutter of this utility model;

[0018] Figure 4 This is a schematic diagram of the cutting state of the first and second cutters of this utility model;

[0019] Figure 5 This is a partial structural disassembly diagram of the present invention.

[0020] In the diagram: 1. First cylinder; 2. Second cylinder; 3. First tool holder; 4. Second tool holder; 5. First cutter; 6. Second cutter; 7. Guide block; 8. Blade tip; 9. Support frame; 10. Two-way lead screw; 11. Slider; 12. Guide groove; 13. Servo motor; 14. Limit groove; 15. Limit block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 The present invention provides the following technical solution:

[0023] An automatic feeding and cutting device for geomembrane rolls, including a cutting component and a drive component;

[0024] The cutting assembly includes a first cylinder 1 and a second cylinder 2. A first blade holder 3 and a second blade holder 4 are fixedly installed at the output ends of the first cylinder 1 and the second cylinder 2, respectively. A first cutter 5 and a second cutter 6 are fixedly installed on opposite sides of the first blade holder 3 and the second blade holder 4, respectively. A guide block 7 is fixedly connected to one side of the first blade holder 3 and the second blade holder 4. The lower end of the first cutter 5 extends to a blade tip 8. The lower end face of the second cutter 6 has a flat transition. The side blade of the second cutter 6 is inclined along the length direction. The upper end face of the blade tip 8 is flush with the lower end face of the second cutter 6, and the side blade of the blade tip 8 and the side blade of the second cutter 6 have a smooth transition.

[0025] The drive assembly includes a support frame 9, which is laterally rotatably connected to a bidirectional lead screw 10. Two sliders 11 are threadedly fitted in the middle of the bidirectional lead screw 10. A first cylinder 1 and a second cylinder 2 are respectively fixedly installed on the upper ends of the two sliders 11. A guide groove 12 is opened on one side of the two sliders 11, and a guide block 7 is slidably connected to the guide groove 12. A servo motor 13 is fixedly installed on the support frame 9 corresponding to the bidirectional lead screw 10. The output end of the servo motor 13 is fixedly connected to the bidirectional lead screw 10. A limit groove 14 is opened at the lower end of the support frame 9. Limit blocks 15 are fixedly connected to the upper ends of the two sliders 11, and the limit blocks 15 are slidably connected to the limit groove 14. The first cutter holder 3 and the second cutter holder 4 are both concave structure designs. The first cutter 5 and the second cutter 6 are connected to the first cutter holder 3 and the second cutter holder 4 by bolts.

[0026] Before cutting, the servo motor 13 is started. The output of the servo motor 13 drives the bidirectional lead screw 10 to rotate. The positive and negative thread structure of the bidirectional lead screw 10 drives the two sliders 11 to move relative to each other along the lead screw axis. The moving sliders 11 then drive the first cylinder 1, the second cylinder 2, and the first cutter 5 and the second cutter 6 to move synchronously. The initial distance between the two cutters is adjusted so that the first cutter 5 and the second cutter 6 are in contact with each other. During the movement of the slider 11, the limiting block 15 at its upper end slides along the limiting groove 14 opened at the lower end of the support frame 9. The limiting groove 14 restricts the movement trajectory of the slider 11 to avoid deviation. At the same time, the guide block 7 on one side of the first cutter holder 3 and the second cutter holder 4 slides synchronously along the guide groove 12 opened in the slider 11 to help maintain the vertical limit of the first cutter 5 and the second cutter 6.

[0027] When the geomembrane roll is being cut, after the feeding is paused, the first cylinder 1 and the second cylinder 2 are started simultaneously. The output ends of the first cylinder 1 and the second cylinder 2 extend downward, driving the first cutter holder 3 and the second cutter holder 4 to move vertically downward. During the movement, the guide block 7 slides stably along the guide groove 12 to ensure that the first cutter 5 and the second cutter 6 are always perpendicular to the surface of the geomembrane, thus avoiding the blade tilting during cutting. As the first cutter holder 3 and the second cutter holder 4 continue to fall, the longitudinal tip 8 of the first cutter 5 first contacts the surface of the geomembrane, and the tip 8 of the first cutter 5 quickly pierces the geomembrane to form the first V-shaped tear, dispersing the initial cutting resistance. As the first cutter 5 and the second cutter 6 continue to fall, the inclined blade at the lower end of the second cutter 6 gradually cuts into the geomembrane, forming the second V-shaped tear. As the bidirectional screw 10 continuously drives the slider 11 to move, the two V-shaped tears expand to both sides of the geomembrane. The two cutters cut the wide geomembrane from the middle to both sides, avoiding the concentration of separation force caused by a single V-shaped tear when cutting with a single cutter, reducing material tensile deformation, and ensuring a smooth cut.

[0028] After cutting, the output ends of the first cylinder 1 and the second cylinder 2 retract, driving the first cutter holder 3, the second cutter holder 4, the first cutter 5, and the second cutter 6 to rise upward and detach from the surface of the geomembrane; then the servo motor 13 rotates in the opposite direction, driving the bidirectional lead screw 10 to reverse, and the bidirectional lead screw 10 in turn drives the two sliders 11 to move in the opposite direction along the lead screw axis, driving the cutter back to the initial position, completing one cutting cycle, and waiting for the next roll of material to be fed into place before repeating the above actions.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic feeding and cutting device for geomembrane rolls, characterized in that: This includes disconnect components and drive components; The cutting assembly includes a first cylinder (1) and a second cylinder (2). The output ends of the first cylinder (1) and the second cylinder (2) are respectively fixedly mounted with a first blade holder (3) and a second blade holder (4). A first cutter (5) and a second cutter (6) are respectively fixedly mounted on opposite sides of the first blade holder (3) and the second blade holder (4). A guide block (7) is fixedly connected to one side of the first blade holder (3) and the second blade holder (4). The first cutter (5) has a blade tip (8) extending from its lower end. The lower end face of the second cutter (6) is flat and transitions smoothly. The side blade of the second cutter (6) is inclined along its length. The upper end face of the blade tip (8) is flush with the lower end face of the second cutter (6), and the side blade of the blade tip (8) and the side blade of the second cutter (6) transition smoothly.

2. The automatic feeding and cutting device for geomembrane rolls according to claim 1, characterized in that: The drive assembly includes a support frame (9), which is laterally rotatably connected to a two-way lead screw (10). Two sliders (11) are threadedly fitted in the middle of the two-way lead screw (10). The first cylinder (1) and the second cylinder (2) are respectively fixedly installed on the upper ends of the two sliders (11). A guide groove (12) is opened on one side of the two sliders (11), and the guide block (7) is slidably connected to the guide groove (12).

3. The automatic feeding and cutting device for geomembrane rolls according to claim 2, characterized in that: The support frame (9) is fixedly mounted with a servo motor (13) corresponding to the bidirectional lead screw (10), and the output end of the servo motor (13) is fixedly connected to the bidirectional lead screw (10).

4. The automatic feeding and cutting device for geomembrane rolls according to claim 2, characterized in that: The support frame (9) has a limiting groove (14) at its lower end, and the upper ends of the two sliders (11) are fixedly connected to limiting blocks (15), which are slidably connected to the limiting groove (14).

5. The automatic feeding and cutting device for geomembrane rolls according to claim 1, characterized in that: Both the first cutter holder (3) and the second cutter holder (4) are designed with concave structure. The first cutter (5) and the second cutter (6) are connected to the first cutter holder (3) and the second cutter holder (4) by bolts.

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