Automatic cutting mechanism of serrated knife

Abstract

The utility model discloses an automatic cutting mechanism of a serrated knife, and relates to the technical field of composite materials. Comprising a mounting seat, a box body assembly is arranged outside the mounting seat and used for packaging the mounting seat, the mounting seat comprises a transverse seat and a vertical seat, fixed limiting blocks are symmetrically arranged on the vertical seat, blade clamping blocks are slidably arranged on the fixed limiting blocks, a cutting assembly is arranged on the vertical seat, and the cutting assembly comprises an air cylinder arranged on one side of each fixed limiting block; a connecting lever assembly is arranged at one end of the cylinder. Through the arrangement of the mechanism, the serrated cutter body and the connecting lever assembly are adopted, under the action of the air cylinder, the serrated cutter body rapidly stretches out to cut materials, the materials are conveniently and rapidly cut in a flush mode, the serrated cutter body and the connecting lever assembly are provided with the cutter box, when the serrated cutter body does not act, the serrated cutter body is located in the cutter box, and safety and reliability are achieved; and the cutting device is particularly suitable for cutting of a double-station non-stop automatic winding and unwinding system, and the cutting operation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of composite materials, in particular to an automatic cutting mechanism of a sawtooth knife. Background Art

[0002] Composite materials are new materials that are made by optimizing the combination of material components with different properties using advanced material preparation technology. During the production and processing of composite materials, it is necessary to cut resin films, release papers, prepregs and other materials online, using automatic cutting mechanisms.

[0003] An existing serrated knife cutting mechanism for a cross-cutting machine (authorization announcement number: CN 214563259 U) has the following defects: the above-mentioned mechanism drives the cutting saw blade to quickly cut the workpiece through the second drive motor, and at the same time can drive the cutting saw blade to move left and right during the cutting process through the guide sleeve. However, when the existing resin film, release paper, prepreg and other materials of composite materials are cut, a single-piece knife is used for moving and cutting operations, which makes it difficult to adapt to the existing non-stop automatic replacement of the winding unit system, thereby making the cutting operation more cumbersome. For this reason, the present utility model is proposed. Utility Model Content

[0004] The utility model aims to provide a serrated knife automatic cutting mechanism to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a serrated knife automatic cutting mechanism, comprising a mounting seat, a box body assembly is arranged outside the mounting seat, which is used to package the mounting seat, the mounting seat comprises a horizontal seat and a vertical seat, fixed limit blocks are symmetrically arranged on the vertical seat, a blade clamping block is slidably arranged on the fixed limit block, a cutting assembly is arranged on the vertical seat, the cutting assembly comprises a cylinder arranged at one side of the fixed limit block, a connecting lever assembly is arranged at one end of the cylinder, the connecting lever assembly comprises a plurality of rotating rods equidistantly arranged on the inner side of the vertical seat, a first rotating rod is rotatably inserted at one end of the rotating rod, the first rotating rod is fixed on the vertical seat, and a second rotating rod is rotatably inserted at the other end of the rotating rod.

[0006] Preferably, the second rotating rod is fixed on the blade clamping block, a fixed rod is fixed to the middle of the rotating rod located on one side of the cylinder, and one end of the cylinder is rotatably sleeved on the fixed rod at the corresponding position.

[0007] Preferably, the vertical seat is fixed to the horizontal seat, the vertical seat and the horizontal seat are L-shaped, and both the vertical seat and the horizontal seat are installed and fixed in the box body assembly.

[0008] Preferably, the box body assembly includes a knife box arranged outside the mounting seat, both ends of the knife box are equipped with through-plate straight-through mounting plates, a through-plate straight-through body is installed on the through-plate straight-through mounting plate, and a knife outlet is opened on the top of the knife box.

[0009] Preferably, a limiting groove is provided on the fixed limiting block, the limiting groove is matched with the blade clamping block, a knife mounting groove is provided on the blade clamping block, a serrated knife body is provided on the knife mounting groove, and a blade pressing plate is provided on the blade clamping block.

[0010] Preferably, the blade pressing plate and the blade clamping block are connected via bolts, and the fixed limiting block and the vertical seat are connected via bolts.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The serrated knife automatic cutting mechanism adopts a serrated knife body and a connecting lever assembly through the setting of the mechanism. Under the action of the cylinder, the serrated knife body quickly extends to cut the material, which is convenient for quickly and evenly cutting the material. The serrated knife body and the connecting lever assembly are equipped with a knife box, so that when the serrated knife body is not moving, the serrated knife body is in the knife box, which is safe and reliable, and is particularly suitable for cutting in a double-station non-stop automatic rewinding and unwinding system, and the cutting operation is easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the internal three-dimensional structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the serrated knife retracting structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the extended structure of the serrated knife of the utility model.

[0017] In the figure: 1, mounting seat; 101, horizontal seat; 102, vertical seat; 2, serrated blade body; 3, fixed limit block; 301, limit groove; 302, blade clamping block; 4, blade pressure plate; 5, cylinder; 6, connecting lever assembly; 601, rotating rod; 602, first rotating rod; 603, second rotating rod; 604, fixed rod; 7, blade box; 701, blade outlet; 8, through-plate straight-through mounting plate; 9, through-plate straight-through body. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the process of cutting release paper, PE film and other materials, a cutting mechanism is needed. The cutting mechanism provided by the utility model is specially used to cut release paper, PE film and other materials and is adapted to the existing non-stop automatic roll changing working system, which is convenient for quickly cutting materials and ensuring a smooth cut without manual cutting operations. In the process of using this mechanism, it is necessary to carry out preparatory work such as inspection, installation and testing in advance to ensure the normal use of this mechanism.

[0020] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a serrated knife automatic cutting mechanism, including a mounting seat 1, a box assembly is arranged outside the mounting seat 1, and the mounting seat 1 includes a horizontal seat 101 and a vertical seat 102, and a fixed limit block 3 is symmetrically arranged on the vertical seat 102, and a blade clamping block 302 is slidably arranged on the fixed limit block 3, and a cutting assembly is arranged on the vertical seat 102, and the cutting assembly includes a cylinder 5 arranged at a side position of the fixed limit block 3, and a connecting lever assembly 6 is arranged at one end of the cylinder 5, and the connecting lever assembly 6 includes a cylinder 5 arranged equidistantly on the vertical seat 102. There are multiple rotating rods 601 on the inner side, and a first rotating rod 602 is rotatably inserted at one end of the rotating rod 601, and the first rotating rod 602 is fixed on the vertical seat 102, and a second rotating rod 603 is rotatably inserted at the other end of the rotating rod 601, wherein the cylinder 5 is the prior art, and the telescopic end of the cylinder 5 is connected to the connecting lever assembly 6, and the cylinder 5 is provided with two, and the rotating rod 601 is conveniently connected to the cylinder 5 to play a driving role. At the same time, the multiple rotating rods 601 are rotatably connected to the blade clamping block 302 to ensure the stable movement of the blade clamping block 302 and the serrated blade body 2 as a whole.

[0021] In the embodiment, the second rotating rod 603 is fixed on the blade clamping block 302, and a fixed rod 604 is fixed in the middle of the rotating rod 601 located on one side of the cylinder 5. One end of the cylinder 5 is rotatably sleeved on the fixed rod 604 at the corresponding position, and the vertical seat 102 is fixed to the horizontal seat 101. The vertical seat 102 and the horizontal seat 101 are L-shaped. The vertical seat 102 and the horizontal seat 101 are both installed and fixed in the box body assembly. When the cylinder 5 performs the stretching operation, the cylinder 5 pushes the rotating rod 601 and the blade clamping block 302 to perform as a whole. It extends outward obliquely, so as to quickly cut the material. When the cylinder 5 is contracting, the cylinder 5 pulls the rotating rod 601 and the blade clamping block 302 to be retracted obliquely as a whole, so as to be quickly retracted into the knife box 7 to ensure safety. When the rotating rod 601 is in operation, the two ends of the rotating rod 601 respectively perform corresponding rotation operations with the first rotating rod 602 and the second rotating rod 603 as axes. The knife outlet 701 is adapted to the extension and retraction movement trajectory of the serrated knife body 2, which plays a role in limiting and stabilizing the serrated knife body 2.

[0022] In the embodiment, the box body assembly includes a knife box 7 arranged outside the mounting seat 1, and a through-plate straight-through mounting plate 8 is installed at both ends of the knife box 7, and a through-plate straight-through body 9 is installed on the through-plate straight-through mounting plate 8. A knife outlet 701 is opened on the top of the knife box 7, and a limiting groove 301 is opened on the fixed limit block 3, and the limiting groove 301 is adapted to the blade clamping block 302. A knife mounting groove is opened on the blade clamping block 302, and a serrated knife body 2 is arranged on the knife mounting groove, and a blade pressing plate 4 is arranged on the blade clamping block 302. Among them, the through-plate straight-through mounting plate 8 and the through-plate straight-through body 9 are existing technologies to ensure the normal use of the mechanism, and the shape of the serrated knife body 2 is designed according to the physical properties of the material to be cut and the size of the cutting edge.

[0023] In the embodiment, the blade pressure plate 4 is connected to the blade clamping block 302 by bolts, and the fixed limit block 3 is connected to the vertical seat 102 by bolts, so that the mechanism is easy to disassemble and install. Through the setting of the mechanism, a serrated knife body 2 and a connecting lever assembly 6 are adopted. Under the action of the cylinder 5, the serrated knife body 2 is quickly extended to cut the material, which is convenient for fast and flush cutting of the material. The serrated knife body 2 and the connecting lever assembly 6 are equipped with a knife box 7, so that when the serrated knife body 2 is not in motion, the serrated knife body 2 is in the knife box 7, which is safe and reliable, and is particularly suitable for cutting in a double-station non-stop automatic rewinding and unwinding system, making the cutting operation easy.

[0024] Working principle: When using this mechanism, the entire mechanism is installed in position. When the material needs to be cut, the telescopic end of the cylinder 5 is controlled to stretch and contract. When the cylinder 5 is stretched, the rotating rod 601, the fixed rod 604 and the serrated knife body 2 are quickly extended from the knife outlet 701 to the upper side. This mechanism is suitable for cutting release paper, PE film and other materials, and is not used for cutting thicker and tougher composite materials such as fiber fabrics. The tip of the serrated knife body 2 pierces the surface of the material, and then the blades on both sides of the tip of the serrated knife body 2 scratch the material, and finally the long side blade of the serrated knife body 2 cuts the material. This mechanism is equipped with existing automatic overlapping mechanisms, pneumatic safety chucks and other components to achieve continuous unwinding operations without stopping.

[0025] Although the 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is limited by the attached embodiments and their equivalents.

Claims

1. A serrated knife automatic cutting mechanism, comprising a mounting seat (1), characterized in that: A box body assembly is arranged outside the mounting seat (1) for packaging the mounting seat (1), the mounting seat (1) comprising a horizontal seat (101) and a vertical seat (102), a fixed limit block (3) is symmetrically arranged on the vertical seat (102), a blade clamping block (302) is slidably arranged on the fixed limit block (3), a cutting assembly is arranged on the vertical seat (102), the cutting assembly comprises a cylinder (5) arranged at one side of the fixed limit block (3), a connecting lever assembly (6) is arranged at one end of the cylinder (5), the connecting lever assembly (6) comprises a plurality of rotating rods (601) equidistantly arranged on the inner side of the vertical seat (102), a first rotating rod (602) is rotatably inserted at one end of the rotating rod (601), the first rotating rod (602) is fixed on the vertical seat (102), and a second rotating rod (603) is rotatably inserted at the other end of the rotating rod (601).

2. The serrated knife automatic cutting mechanism according to claim 1, characterized in that: The second rotating rod (603) is fixed on the blade clamping block (302), a fixed rod (604) is fixed in the middle of the rotating rod (601) located on one side of the cylinder (5), and one end of the cylinder (5) is rotatably sleeved on the fixed rod (604) at the corresponding position.

3. The serrated knife automatic cutting mechanism according to claim 1, characterized in that: The vertical seat (102) is fixed to the horizontal seat (101), the vertical seat (102) and the horizontal seat (101) are L-shaped, and the vertical seat (102) and the horizontal seat (101) are both installed and fixed in the box body assembly.

4. The serrated knife automatic cutting mechanism according to claim 1, characterized in that: The box assembly comprises a knife box (7) arranged outside the mounting seat (1), both ends of the knife box (7) are equipped with through-plate straight-through mounting plates (8), a through-plate straight-through body (9) is installed on the through-plate straight-through mounting plate (8), and a knife outlet (701) is opened on the top of the knife box (7).

5. The serrated knife automatic cutting mechanism according to claim 1, characterized in that: The fixed limiting block (3) is provided with a limiting groove (301), the limiting groove (301) is matched with the blade clamping block (302), the blade clamping block (302) is provided with a knife installation groove, the knife installation groove is provided with a serrated knife body (2), and the blade clamping block (302) is provided with a blade pressing plate (4).

6. The serrated knife automatic cutting mechanism according to claim 5, characterized in that: The blade pressing plate (4) and the blade clamping block (302) are connected via bolts, and the fixed limit block (3) and the vertical seat (102) are connected via bolts.

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