A fixed-length cutting device for PVC plastic floor

Abstract

The invention discloses a fixed-length cutting device for PVC plastic floor, comprising a base, a cutting mechanism, a conveying mechanism and a PLC controller. An infrared sensor is arranged in front of a cutting knife, which can accurately sense the position of the PVC plastic floor, can accurately cut the PVC plastic floor, improve the processing accuracy of the PVC plastic floor, and make the length of each cut PVC plastic floor within the accuracy requirement. The cutting knife performs reciprocating rotary cutting through a lead screw, a motor, a cylinder and a cylinder push rod. Compared with the stamping molding on one side, such cutting will not cause damage to the PVC plastic floor, thus avoiding damage to the PVC plastic floor during the cutting process. In addition, the reciprocating rotary cutting can improve the cutting accuracy of the cutting knife for the PVC plastic floor. A rotating shaft and a rotating motor are arranged at the connection between the knife holder and the cutting knife, which can further improve the cutting accuracy of the cutting knife for the PVC plastic floor and reduce the damage caused by the cutting knife to the PVC plastic floor.

Description

Technical Field

[0001] The invention relates to the technical field of fixed-length cutting devices, in particular to a fixed-length cutting device for PVC plastic floors. Background Art

[0002] Plastic flooring refers to flooring paved with plastic materials. Plastic flooring can be divided into two types according to its use status: block material (or floor tiles) and coil material (or floor leather). According to its material, it can be divided into three types: hard, semi-hard and soft (elastic). According to its basic raw materials, it can be divided into several types such as polyvinyl chloride (PVC) plastic, polyethylene (PE) plastic and polypropylene (PP) plastic. PVC plastic flooring has length and width requirements. In the production process of PVC plastic flooring, it is necessary to cut the extruded PVC plastic flooring to a fixed length. The existing fixed-length cutting device can only control the length of the PVC plastic flooring to be cut through the conveying mechanism. When cutting, it is easy to make the length of the cut PVC plastic flooring have slight differences, and it is impossible to make the length of the cut PVC plastic flooring consistent. Most of the existing fixed-length cutting devices cut the PVC plastic flooring in one punch, which is easy to cause a large impact force on the PVC plastic flooring and damage the internal structure of the PVC plastic flooring. Summary of the invention

[0003] The purpose of the present invention is to provide a fixed-length cutting device for PVC plastic floor, which has a simple and reasonable structure. An infrared sensor is provided in front of the cutting knife of the device, which can sense the position of the PVC plastic floor to be cut and can accurately cut the PVC plastic floor. The cutting mechanism of the device is controlled by a lead screw and a motor, so that the cutting mechanism can reciprocate. At the same time, a rotating shaft and a propulsion mechanism are also provided on the cutting mechanism, so that the cutting knife can rotate through the rotating shaft, thereby reducing the damage to the PVC plastic floor during the cutting process.

[0004] The object of the present invention is achieved in that:

[0005] A fixed-length cutting device for PVC plastic flooring, comprising a base, a cutting mechanism for cutting the flooring, a conveying mechanism for conveying the flooring, an infrared sensor and a PLC controller, wherein the conveying mechanism is rotatably mounted directly above the base, the cutting mechanism is mounted on the base and arranged above the conveying mechanism, the infrared sensor is mounted on the cutting mechanism through a sensor bracket, the infrared sensor is mounted in front of the cutting end of the cutting mechanism, the PLC controller is mounted on the base, and the conveying mechanism and the infrared sensor are connected to the PLC controller;

[0006] Further, the cutting mechanism is installed on the base through a support frame, the support frame is provided with a horizontally arranged sliding shaft whose axis is perpendicular to the conveying direction of the conveying mechanism, a horizontal driving mechanism is provided above the support frame, the horizontal driving mechanism includes a motor, a lead screw and a limit block, the motor is installed on one side of the support frame, the limit block is installed on the other side of the support frame, the lead screw is horizontally arranged directly above the sliding shaft, one end of the lead screw is connected to the output end of the motor, and the other end is connected to the limit block, and the motor is connected to a PLC controller;

[0007] Furthermore, the cutting mechanism includes a slide, an axis support seat, a rotating shaft, a tool holder, a cutting knife and a propulsion mechanism, the slide is sleeved on the lead screw and the sliding shaft, the axis support seat is installed on one side of the slide, the tool holder is arranged in front of the slide, the tool holder and the axis support seat are connected by a rotating shaft, the cutting knife is arranged on the tool holder, and the propulsion mechanism is installed on the other side of the slide;

[0008] Furthermore, a nut matched with the lead screw is provided in the slide seat, and the slide seat is arranged on the lead screw through the nut;

[0009] Furthermore, the propulsion mechanism includes a cylinder and a cylinder propulsion rod, the cylinder is installed on the other side of the slide, the cylinder propulsion rod is tilted, one end of the cylinder propulsion rod is connected to the output end of the cylinder, and the other end is connected to the tool holder;

[0010] Furthermore, the tool holder is rotated by a rotating shaft, a cylinder and a cylinder propulsion rod;

[0011] Furthermore, the tool holder is provided with a rotating motor and a rotating shaft, the rotating shaft is arranged at the lower end of the tool holder, the tool holder is connected to the cutting knife through the rotating shaft, the rotating motor is arranged at one end of the rotating shaft, the output end of the rotating motor is connected to the rotating shaft, and the rotating motor is connected to the PLC controller.

[0012] Working principle of the present invention:

[0013] The cut PVC plastic floor is transported to the front of the cutting knife through the conveying mechanism. The infrared sensor in front of the cutting knife senses the PVC plastic floor and sends a signal to the PLC controller. The PLC controls the cylinder to work, and the cylinder controls the cylinder push rod to shrink. The cylinder push rod drives the knife holder to move upward, and the knife holder drives the cutting knife to move upward. The PLC controller controls the conveying mechanism to transport the PVC plastic floor to a specified length and then stops, and sends a signal to the PLC controller. The PLC controller controls the motor to work, and the motor controls the slide to reciprocate between the main shafts through the lead screw and the nut. The cylinder starts to work, and the cylinder controls the cylinder push rod to repeat the process of extension, contraction, extension, and contraction, so that the cutting knife cuts the PVC plastic floor. At the same time, the PLC controller also controls the rotating motor to work, and the rotating motor drives the cutting knife to rotate back and forth at a small angle through the rotating shaft. When the cutting is completed, the PLC controller first controls the rotating motor and the motor to stop working, and then controls the cylinder to shrink the cylinder push rod to move the cutting knife upward. Finally, the conveying mechanism is controlled to transport the PVC plastic floor to a specified length again, and the above cutting process is repeated.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] A fixed-length cutting device for PVC plastic flooring comprises a base, a cutting mechanism, a conveying mechanism and a PLC controller. An infrared sensor is arranged in front of a cutting knife, which can accurately sense the position of the PVC plastic flooring and can accurately cut the PVC plastic flooring, thereby improving the processing accuracy of the PVC plastic flooring and ensuring that the length of each cut PVC plastic flooring is within the accuracy requirement. The cutting knife performs reciprocating rotary cutting through a lead screw, a motor, a cylinder and a cylinder push rod. Compared with the stamping molding on one side, such cutting will not cause damage to the PVC plastic flooring, thereby avoiding damage to the PVC plastic flooring during the cutting process. Furthermore, the reciprocating rotary cutting can improve the cutting accuracy of the cutting knife for the PVC plastic flooring. A rotating shaft and a rotating motor are arranged at the connection between the knife holder and the cutting knife, thereby further improving the cutting accuracy of the cutting knife for the PVC plastic flooring and reducing the damage caused to the PVC plastic flooring by the cutting knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the present invention.

[0017] Figure 2 Cutting mechanism structure diagram

[0018] Among them, 1 is a base, 11 is a support frame, 111 is a main shaft, 2 is a cutting mechanism, 21 is a slide seat, 211 is a nut, 22 is an axis support seat, 23 is a rotating shaft, 24 is a tool holder, 241 is a rotating motor, 242 is a rotating shaft, 25 is a cutting knife, 26 is a propulsion mechanism, 261 is a cylinder, 262 is a cylinder propulsion rod, 3 is a conveying mechanism, 4 is an infrared sensor, 41 is a sensor bracket, 5 is a PLC controller, 6 is a horizontal driving mechanism, 61 is a motor, 62 is a lead screw, and 63 is a limit block. DETAILED DESCRIPTION

[0019] like Figure 1-2 As shown, a fixed-length cutting device for PVC plastic flooring includes a base 1 and a cutting mechanism 2 for cutting the flooring, and also includes a conveying mechanism 3 for conveying the flooring, an infrared sensor 4 and a PLC controller 5. The conveying mechanism 3 is rotatably installed directly above the base 1, the cutting mechanism 2 is installed on the base 1 and is arranged above the conveying mechanism 3, the infrared sensor 4 is installed on the cutting mechanism 2 through a sensor bracket 41, the infrared sensor 4 is installed in front of the cutting end of the cutting mechanism 2, the PLC controller 5 is installed on the base 1, and the conveying mechanism 3 and the infrared sensor 4 are connected to the PLC controller 5.

[0020] Further, the cutting mechanism 2 is installed on the base 1 through a support frame 11, and a horizontally arranged sliding shaft 111 is provided on the support frame 11, and its axis is perpendicular to the conveying direction of the conveying mechanism 3. A horizontal driving mechanism 6 is provided above the support frame 11, and the horizontal driving mechanism 6 includes a motor 61, a lead screw 62 and a limit block 63. The motor 61 is installed on one side of the support frame 11, and the limit block 63 is installed on the other side of the support frame 11. The lead screw 62 is horizontally arranged just above the sliding shaft 111, and one end of the lead screw 62 is connected to the output end of the motor 61, and the other end is connected to the limit block 63. The motor 61 is connected to the PLC controller 5. .

[0021] Furthermore, the cutting mechanism 2 includes a slide 21, an axis support seat 22, a rotating shaft 23, a tool holder 24, a cutting knife 25 and a propulsion mechanism 26. The slide 21 is mounted on the lead screw 62 and the sliding shaft 111. The axis support seat 22 is installed on one side of the slide 21. The tool holder 24 is arranged directly in front of the slide 21. The tool holder 24 and the axis support seat 22 are connected by a rotating shaft 23. The cutting knife 25 is arranged on the tool holder 24. The propulsion mechanism 26 is installed on the other side of the slide 21.

[0022] Furthermore, a nut 211 matched with the lead screw 62 is disposed in the slide seat 21 , and the slide seat 21 is disposed on the lead screw 62 via the nut 211 .

[0023] Furthermore, the propulsion mechanism 26 includes a cylinder 261 and a cylinder propulsion rod 262. The cylinder 261 is installed on the other side of the slide 21. The cylinder propulsion rod 262 is tilted. One end of the cylinder propulsion rod 262 is connected to the output end of the cylinder 261, and the other end is connected to the tool holder 24.

[0024] Furthermore, the tool holder 24 is rotated by the rotating shaft 23 , the cylinder 261 and the cylinder propulsion rod 262 .

[0025] Furthermore, the tool holder 24 is provided with a rotating motor 241 and a rotating shaft 242, the rotating shaft 242 is arranged at the lower end of the tool holder 24, the tool holder 24 is connected to the cutting knife 25 through the rotating shaft 242, the rotating motor 241 is arranged at one end of the rotating shaft 242, the output end of the rotating motor 241 is connected to the rotating shaft 242, and the rotating motor 241 is connected to the PLC controller 5.

[0026] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present invention, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.

Claims

1. A fixed-length cutting device for PVC plastic floor, comprising a base (1), a cutting mechanism (2) for cutting the floor, a conveying mechanism (3) for conveying the floor, an infrared sensor (4) and a PLC controller (5), wherein the conveying mechanism (3) is rotatably mounted directly above the base (1), the cutting mechanism (2) is mounted on the base (1) and arranged above the conveying mechanism (3), the infrared sensor (4) is mounted on the cutting mechanism (2) via a sensor bracket (41), the infrared sensor (4) is mounted in front of the cutting end of the cutting mechanism (2), the PLC controller (5) is mounted on the base (1), and the conveying mechanism (3) and the infrared sensor (4) are connected to the PLC controller (5); The cutting mechanism (2) is mounted on the base (1) via a support frame (11); a horizontally arranged sliding shaft (111) is provided on the support frame (11), the axis of which is perpendicular to the conveying direction of the conveying mechanism (3); a horizontal driving mechanism (6) is provided above the support frame (11); the horizontal driving mechanism (6) comprises a motor (61), a lead screw (62) and a limit block (63); the motor (61) is mounted on one side of the support frame (11); the limit block (63) is mounted on the other side of the support frame (11); the lead screw (62) is horizontally arranged directly above the sliding shaft (111); one end of the lead screw (62) is connected to the output end of the motor (61); and the other end is connected to the limit block (63); the motor (61) is connected to a PLC controller (5); The cutting mechanism (2) comprises a slide seat (21), an axis support seat (22), a rotating shaft (23), a tool holder (24), a cutting knife (25) and a propulsion mechanism (26); the slide seat (21) is sleeved on the lead screw (62) and the sliding shaft (111); the axis support seat (22) is mounted on one side of the slide seat (21); the tool holder (24) is arranged in front of the slide seat (21); the tool holder (24) and the axis support seat (22) are connected via the rotating shaft (23); the cutting knife (25) is arranged on the tool holder (24); and the propulsion mechanism (26) is mounted on the other side of the slide seat (21); A nut (211) matching with the lead screw (62) is provided in the slide seat (21), and the slide seat (21) is arranged on the lead screw (62) via the nut (211); The propulsion mechanism (26) comprises a cylinder (261) and a cylinder propulsion rod (262), wherein the cylinder (261) is mounted on the other side of the slide seat (21), the cylinder propulsion rod (262) is arranged obliquely, one end of the cylinder propulsion rod (262) is connected to the output end of the cylinder (261), and the other end is connected to the tool holder (24); The tool holder (24) is rotated via the rotating shaft (23), the cylinder (261) and the cylinder propulsion rod (262).

2. A fixed-length cutting device for PVC plastic flooring according to claim 1, characterized in that: The tool holder (24) is provided with a rotating motor (241) and a rotating shaft (242); the rotating shaft (242) is arranged at the lower end of the tool holder (24); the tool holder (24) is connected to the cutting knife (25) via the rotating shaft (242); the rotating motor (241) is arranged at one end of the rotating shaft (242); the output end of the rotating motor (241) is connected to the rotating shaft (242); and the rotating motor (241) is connected to a PLC controller (5).

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