Automatic roll width adjustment device and method

Abstract

The present application provides a kind of automatic adjusting device of coiled material width, including the conveying mechanism of conveying coiled material to winding machine, conveying mechanism includes: be located in oiling pool oiling roller and extruding roller, and be located between oiling pool and winding machine and stay rack;Stay rack and winding machine between also be equipped with coiled material width measuring device;Coiled material width measuring device includes the spring baffle, fixed frame and level sensor that are set in both sides of coiled material;The level sensor of both sides of coiled material is respectively connected to PLC system, and PLC system also controls the speed difference of oiling roller and extruding roller.The present application also provides a kind of coiled material width automatic adjusting method, coiled material width is automatically adjusted using the above-mentioned coiled material width automatic adjusting device.The present application can monitor coiled material width, and judge whether coiled material width is qualified, and can automatically adjust coiled material width when coiled material width is unqualified, can improve coiled material product qualified rate.

Description

Technical Field

[0001] This invention relates to an automatic roll width adjustment device and method. Background Technology

[0002] Waterproof membranes are mainly used in building walls, roofs, tunnels, highways, landfills, etc., to resist external rainwater and groundwater seepage. They are flexible building materials that can be rolled up and serve as a leak-proof connection between the foundation and the building. They are the first line of defense for waterproofing the entire project and play a vital role in the overall project.

[0003] With the development of the domestic waterproofing industry and the continuous improvement of waterproofing technology, there are still cases where the width of the waterproofing membrane is not properly controlled during the production process, which will affect the pass rate of waterproofing membrane products. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention provides an automatic roll width adjustment device, including a conveying mechanism for conveying rolls to a winding machine. The conveying mechanism includes an oiling roller and a pressing roller disposed in an oiling tank, and a holding frame located between the oiling tank and the winding machine.

[0005] A roll width measuring device is also provided between the dwell frame and the winding machine; the roll width measuring device includes: a first baffle that abuts against one side of the roll, a second baffle that abuts against the other side of the roll, a first spring that drives the first baffle to abut against the roll, a second spring that drives the second baffle to abut against the roll, a first fixing frame that supports the first spring, a second fixing frame that supports the second spring, a first level sensor that detects the distance between the first baffle and the first fixing frame in real time, and a second level sensor that detects the distance between the second baffle and the second fixing frame in real time; the first fixing frame is located outside the first baffle, and the two ends of the first spring are respectively connected to the first fixing frame and the first baffle; the second fixing frame is located outside the second baffle, and the two ends of the second spring are respectively connected to the second fixing frame and the second baffle;

[0006] The first and second level sensors are connected to the PLC system, and the PLC system also controls the speed difference between the oiling roller and the extrusion roller.

[0007] Preferably, a speedometer is also provided between the stop frame and the winding machine; the speedometer detects the roll conveying speed at the roll width measuring device in real time and transmits the roll conveying speed to the PLC system.

[0008] Preferably, a roll material dewatering device is also provided between the stop frame and the roll material width measuring device; the roll material dewatering device includes a spring squeegee and an air jet on both sides of the roll material; the spring squeegee and the air jet scrape off excess water from both sides of the roll material, preventing damage to the roll material width measuring device caused by excessive water entering the roll material width measuring device due to high friction between the roll material edge film and the first baffle and / or the second baffle; and the spring squeegee and the air jet scrape the roll material edge film to the top of the roll material, preventing excessive friction between the edge film and the first baffle and / or the second baffle.

[0009] The present invention also provides a method for automatically adjusting the width of a roll material, which uses the above-mentioned automatic roll material width adjustment device to automatically adjust the width of the roll material at the coating tank, and includes the following steps:

[0010] The roll material is conveyed by the conveying mechanism and passes in sequence through the oiling roller, the extrusion roller, the holding rack, and the roll width measuring device, and is then wound up by the winding machine;

[0011] When rolls of material of different widths pass through the roll width measuring device, the first and second baffles on both sides of the roll will move accordingly according to the width of the roll. Specifically: when the roll becomes wider, the roll will drive the first baffle to compress the first spring and move towards the first fixed frame, and at the same time, the roll will drive the second baffle to compress the second spring and move towards the second fixed frame; when the roll becomes less loaded, the first spring will drive the first baffle away from the first fixed frame and move closer to the roll, and at the same time, the second spring will drive the second baffle away from the second fixed frame and move closer to the roll. The first level sensor detects the distance W1 between the first baffle and the first fixed frame in real time and transmits the distance W1 data to the PLC system; the second level sensor detects the distance W2 between the second baffle and the second fixed frame in real time and transmits the distance W2 data to the PLC system; the PLC system pre-records the distance W3 between the first fixed frame and the second fixed frame, and the PLC system calculates the real-time width W of the roll, where the real-time width W = W3 - W1 - W2.

[0012] However, the real-time width W of the roll material calculated during the conveying process is inaccurate; the winding machine pauses once after each winding; when the winding machine pauses, the roll material conveying speed at the roll material width measuring device becomes 0 meters / minute; each time the roll material conveying speed at the roll material width measuring device becomes 0 meters / minute, the PLC system records the calculated real-time width W of the roll material and compares the recorded real-time width W with the preset qualified roll material width W0; when the recorded real-time width W is greater than the preset qualified roll material width W0, the calculation is inaccurate. At speed 0, the PLC system appropriately increases the speed difference between the oiling roller and the extrusion roller; when the real-time width W of the roll material recorded in this instance is less than the preset qualified width W0 of the roll material, the PLC system appropriately decreases the speed difference between the oiling roller and the extrusion roller; if there is no speed difference between the oiling roller and the extrusion roller, there will be no stretching effect on the base fabric of the roll material at the oiling pool; when the rotation speed of the oiling roller is greater than the rotation speed of the extrusion roller, there will be a stretching effect on the base fabric of the roll material at the oiling pool; the stretching effect on the base fabric can be adjusted by controlling the speed difference between the oiling roller and the extrusion roller, thereby adjusting the width of the roll material.

[0013] The advantages and beneficial effects of this invention are as follows:

[0014] This invention provides an automatic roll width adjustment device and method. The invention can monitor the roll width and determine whether the roll width is qualified. It can also automatically adjust the roll width when the roll width is not qualified, thereby improving the roll product qualification rate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the present invention. Detailed Implementation

[0016] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0017] The specific technical solution of this invention is as follows:

[0018] like Figure 1 As shown, the present invention provides an automatic roll width adjustment method, which uses an automatic roll width adjustment device to automatically adjust the roll width at the oiling tank;

[0019] The automatic roll width adjustment device includes: a PLC system, and an oiling tank, a holding rack, a roll dewatering device, a roll width measuring device, and a winding machine arranged in sequence; a speed meter is also provided between the holding rack and the winding machine; an oiling roller and a pressing roller are provided in the oiling tank; the PLC system can control the speed difference between the oiling roller and the pressing roller.

[0020] The roll material dewatering device includes spring scrapers and air jets installed on both sides of the roll material.

[0021] The roll width measuring device includes: a first baffle abutting one side of the roll, a second baffle abutting the other side of the roll, a first spring driving the first baffle to abut the roll, a second spring driving the second baffle to abut the roll, a first fixing frame supporting the first spring, a second fixing frame supporting the second spring, a first level sensor for real-time detection of the distance between the first baffle and the first fixing frame, and a second level sensor for real-time detection of the distance between the second baffle and the second fixing frame; the first fixing frame is located outside the first baffle, and the two ends of the first spring are respectively connected to the first fixing frame and the first baffle; the second fixing frame is located outside the second baffle, and the two ends of the second spring are respectively connected to the second fixing frame and the second baffle; the first level sensor and the second level sensor are respectively connected to a PLC system;

[0022] The speedometer detects the roll conveying speed at the roll width measuring device in real time and transmits the roll conveying speed to the PLC system.

[0023] The automatic roll width adjustment method includes the following steps:

[0024] The roll material is conveyed and passes sequentially through an oiling roller, a squeeze roller, a holding rack, a roll material dewatering device, and a roll material width measuring device, and is then wound up by a winding machine;

[0025] The spring-loaded scraper and air jet of the roll material dewatering device scrape away excess water from both sides of the roll material, preventing damage to the roll material width measuring device caused by excessive water entering the roll material width measuring device due to high friction between the roll material edge film and the first baffle and / or the second baffle; and the spring-loaded scraper and air jet scrape the roll material edge film to the top of the roll material, preventing excessive friction between the edge film and the first baffle and / or the second baffle.

[0026] When rolls of material of different widths pass through the roll width measuring device, the first and second baffles on both sides of the roll will move accordingly according to the width of the roll. Specifically: when the roll becomes wider, the roll will drive the first baffle to compress the first spring and move towards the first fixed frame, and at the same time, the roll will drive the second baffle to compress the second spring and move towards the second fixed frame; when the roll becomes less loaded, the first spring will drive the first baffle away from the first fixed frame and move closer to the roll, and at the same time, the second spring will drive the second baffle away from the second fixed frame and move closer to the roll. The first level sensor detects the distance W1 between the first baffle and the first fixed frame in real time and transmits the distance W1 data to the PLC system; the second level sensor detects the distance W2 between the second baffle and the second fixed frame in real time and transmits the distance W2 data to the PLC system; the PLC system pre-records the distance W3 between the first fixed frame and the second fixed frame, and the PLC system calculates the real-time width W of the roll, where the real-time width W = W3 - W1 - W2.

[0027] However, the real-time width W of the roll material calculated during the conveying process is inaccurate; the winding machine pauses once after each winding; when the winding machine pauses, the roll material conveying speed at the roll material width measuring device becomes 0 meters / minute; each time the roll material conveying speed at the roll material width measuring device becomes 0 meters / minute, the PLC system records the calculated real-time width W of the roll material and compares the recorded real-time width W with the preset qualified roll material width W0; when the recorded real-time width W is greater than the preset qualified roll material width W0, the PLC system appropriately increases the speed difference between the oiling roller and the extrusion roller (e.g., appropriately increasing the speed of the oiling roller and the extrusion roller). The speed of the pressure roller remains constant, and the speed of the extrusion roller is always less than the speed of the oiling roller. When the real-time width W of the roll material recorded in this instance is less than the preset qualified width W0 of the roll material, the PLC system appropriately reduces the speed difference between the oiling roller and the extrusion roller (e.g., appropriately reduces the speed of the oiling roller, keeps the speed of the extrusion roller constant, and ensures that the speed of the extrusion roller is always less than the speed of the oiling roller). If there is no speed difference between the oiling roller and the extrusion roller, there will be no stretching effect on the base fabric of the roll material at the oiling pool. When the speed of the oiling roller is greater than the speed of the extrusion roller, there will be a stretching effect on the base fabric of the roll material at the oiling pool. The stretching effect on the base fabric can be adjusted by controlling the speed difference between the oiling roller and the extrusion roller, thereby adjusting the width of the roll material.

[0028] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for automatically adjusting the width of a roll material, characterized in that, An automatic roll width adjustment device is used to automatically adjust the roll width at the oiling tank; The automatic roll width adjustment device includes a conveying mechanism for feeding the roll to the winding machine. The conveying mechanism includes an oiling roller and a pressing roller disposed in an oiling tank, and a holding frame located between the oiling tank and the winding machine. A roll width measuring device is also disposed between the holding frame and the winding machine. The roll width measuring device includes a first baffle abutting one side of the roll, a second baffle abutting the other side of the roll, a first spring driving the first baffle to abut the roll, a second spring driving the second baffle to abut the roll, a first fixing frame supporting the first spring, a second fixing frame supporting the second spring, a first level sensor for real-time detection of the distance between the first baffle and the first fixing frame, and a second level sensor for real-time detection of the distance between the second baffle and the second fixing frame. The first fixing frame is located outside the first baffle, and the two ends of the first spring are respectively connected to the first fixing frame. The system includes: a first baffle; a second fixed frame located outside the second baffle; two ends of a second spring connected to the second fixed frame and the second baffle, respectively; a first level sensor and a second level sensor connected to a PLC system, which also controls the speed difference between the oiling roller and the extrusion roller; a speedometer between the stop frame and the winding machine; the speedometer detects the roll conveying speed at the roll width measuring device in real time and transmits the roll conveying speed to the PLC system; a roll dewatering device between the stop frame and the roll width measuring device; the roll dewatering device includes spring wipers and air jets on both sides of the roll; the spring wipers and air jets scrape off excess water from both sides of the roll; and the spring wipers and air jets scrape the roll edge film to the top of the roll to avoid excessive friction between the edge film and the first baffle and / or the second baffle. The automatic adjustment of the roll width at the coating tank using the roll width automatic adjustment device includes the following steps: The roll material is conveyed by the conveying mechanism and passes in sequence through the oiling roller, the extrusion roller, the holding frame, and the roll width measuring device, and is then wound up by the winding machine; The first level sensor detects the distance W1 between the first baffle and the first fixed frame in real time and transmits the distance W1 data to the PLC system; the second level sensor detects the distance W2 between the second baffle and the second fixed frame in real time and transmits the distance W2 data to the PLC system; the PLC system pre-records the distance W3 between the first fixed frame and the second fixed frame, and the PLC system calculates the real-time width W of the roll material, where the real-time width W of the roll material is W3-W1-W2; The winding machine pauses once after each winding cycle. When the winding machine pauses, the roll conveying speed at the roll width measuring device becomes 0 m / min. Each time the roll conveying speed at the roll width measuring device becomes 0 m / min, the PLC system records the calculated real-time roll width W and compares the recorded real-time roll width W with the preset qualified roll width W0. When the recorded real-time roll width W is greater than the preset qualified roll width W0, the PLC system appropriately increases the speed difference between the oiling roller and the pressing roller. When the recorded real-time roll width W is less than the preset qualified roll width W0, the PLC system appropriately decreases the speed difference between the oiling roller and the pressing roller.

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