Indentation processing method of composite paper

Abstract

The invention discloses an indentation processing method for composite paper, which relates to the technical field of composite paper processing, and comprises the following steps of: 1, manufacturing a mould pressing plate, namely manufacturing the corresponding mould pressing plate according to the design requirement of a product, and enabling the lattice positions of the mould pressing plate to be consistent with the printed lattice positions; the problems that the impressing pressure cannot be detected, in the impressing process, the situation that impressions are different in depth possibly occurs, paper cracks are possibly caused seriously, secondary detection is not carried out after product processing is completed, and unqualified products are prone to being missed are solved. Pressure sensors are installed at the positions of a steel knife and a steel wire of the molding press to monitor pressure in the imprinting process in real time, so that the situation that impressions are different in depth is effectively avoided, meanwhile, the paper damage rate is reduced, secondary detection is conducted on machined products, the qualified rate of the products can be effectively increased, unqualified products are screened out in time, and the production efficiency is improved. And the cost is saved to the greatest extent.

Description

Technical Field

[0001] The invention relates to the technical field of composite paper processing, and in particular to a composite paper indentation processing method. Background Art

[0002] Composite paper creasing refers to forming the desired creases or special shapes on composite paper through creasing process. This process is widely used in packaging and printing industry, especially in making paper products such as cartons and cartons, which can ensure that the products can be folded and formed according to the preset shape.

[0003] The current composite paper creasing processing method usually uses a steel wire to press marks or leave grooves for bending on the paper through embossing. This method cannot detect the embossing pressure during the processing. During the creasing process, the impressions may vary in depth, which may seriously cause cracks in the paper, resulting in a significant increase in the product failure rate. In addition, if a secondary inspection is not performed after the product is processed, it is easy to cause unqualified products to be missed, resulting in a decrease in product quality. Therefore, a composite paper creasing processing method is proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a method for indentation processing of composite paper, which has the advantages of being able to detect and control pressure and secondary addition, and solves the problem of being unable to detect the pressure of the indentation. During the indentation process, the impression may be of different depths, which may seriously cause cracks in the paper. If a secondary inspection is not performed after the product is processed, it is easy to cause the problem of unqualified products being missed.

[0005] To achieve the above object, the present invention provides the following technical solution: a method for creasing composite paper, comprising the following steps: Step 1: Make a mold plate. According to the design requirements of the product, make the corresponding mold plate. The grid positions of the mold plate must match the printed grid positions. Step 2: Adjust the embossing plate, install and fix the prepared embossing plate in the plate frame of the die-cutting machine, preliminarily adjust the position, and obtain the preliminary die-cutting and creasing effect; Step 3: Adjust the pressure, first adjust the pressure of the steel knife, then adjust the pressure of the steel wire; Step 4: Measure the pressure, install pressure sensors at the steel knife and steel wire positions, and display the data on the display screen; Step 5: Glue the rubber plugs on both sides of the main steel blade of the template. Using the elastic restoring force of the rubber plugs, the cardboard separated by die-cutting can be pushed out from the blade. Step 6: Test the product. After all adjustments are ready, first mold out a sample and make a comprehensive inspection to see if all product indicators meet the requirements; Step 7: Confirm the sample, confirm that all items tested meet the standards, determine the product as a sample, and officially start production; Step 8: Finished product inspection: set up finished product inspection components above the die-cut finished product.

[0006] Step 9: Waste disposal: remove excess edge material from products after die-cutting and creasing.

[0007] Preferably, in the step 2, when installing the embossing plate, a center positioning system is used to center the embossing plate of the die-cutting machine. During the positioning process, with the assistance of rollers on both sides of the positioning column, the position of the upper mold is calibrated so that the upper mold and the lower mold are aligned. At the same time, the upper mold and the mounting seat maintain an active connection, which will not affect the operation of the stamping device.

[0008] Preferably, in step four, the detection value of the pressure sensor is set, and then the pressure sensor is connected to the control device through a wireless signal device, and the control device is used to control the downward pressure position of the steel knife and the steel wire, so that the steel knife and the steel wire stop working when the pressure sensor reaches the detection value, so as to ensure the beauty of the composite paper after forming and avoid damage to the paper.

[0009] Preferably, in step three, the position and direction of the indentation lines of the steel knife and the steel wire are adjusted to avoid setting the indentation lines at the locations where stress is concentrated. After the adjustment is completed, the position and direction of the steel knife and the steel wire are recorded as preliminary determination data of the indentation.

[0010] Preferably, in step six, if the product is qualified, the product is used as a qualified sample, and the sample is first used as a control group, and then the various numerical parameters of the die-cutting machine under the product are marked and used as a reference; if the product is unqualified, the product is scrapped, and step six is ​​continued until a qualified product appears.

[0011] Preferably, in step eight, a conveyor belt is set at the finished product outlet for product conveyance, an infrared detector is set above the finished product outlet, and an electric push rod is installed on one side of the conveyor belt. The infrared detector is used to detect the depth of the indentation on the surface of the finished product and perform processing.

[0012] Preferably, the processing method is as follows: when the infrared detector detects that the finished product is a qualified product, it sends a signal (marked as signal one) to the control device through the wireless signal device, and the control device controls the conveyor belt to work so that it conveys the finished product to the packaging area; when the infrared detector detects that the finished product is an unqualified product, it sends a signal (marked as signal two) to the control device through the wireless signal device, controls the electric push rod to work, and pushes the unqualified product off the conveyor belt through the electric push rod, and drops it into the waste collection device for collection.

[0013] Preferably, in step nine, the waste is divided into three parts, the first part is the unqualified products in step six; the second part is the unqualified products in step eight; the third part is the scraps of the products in the molding process, wherein the first part and the second part are collected together for rework and reprocessing to ensure that the product unqualified rate is reduced to a minimum and the cost is saved to the greatest extent, and the scraps are recycled and reused as environmentally friendly waste.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The present invention installs pressure sensors at the positions of the steel knife and steel wire of the molding machine to monitor the pressure in the printing process in real time, so as to effectively avoid the situation where the impressions are of different depths and reduce the paper damage rate. After the machine is debugged and the qualified samples are confirmed to be processed, an additional detection procedure is added to perform a secondary detection on the processed products, which can effectively improve the qualified rate of the products, screen out unqualified products in time, and centrally process the screened unqualified products for workers to judge whether they can be reworked and reprocessed, thereby saving costs to the greatest extent. The scraps are recycled as environmentally friendly waste, thereby improving the environmental friendliness of the processing. DETAILED DESCRIPTION

[0015] A method for creasing composite paper comprises the following steps: Step 1: Make a mold plate. According to the design requirements of the product, make the corresponding mold plate. The grid positions of the mold plate must match the printed grid positions. Step 2: Adjust the embossing plate, install and fix the prepared embossing plate in the plate frame of the die-cutting machine, preliminarily adjust the position, and obtain the preliminary die-cutting and creasing effect; Step 3: Adjust the pressure, first adjust the pressure of the steel knife, then adjust the pressure of the steel wire; Step 4: Measure the pressure, install pressure sensors at the steel knife and steel wire positions, and display the data on the display screen; Step 5: Glue the rubber plugs on both sides of the main steel blade of the template. Using the elastic restoring force of the rubber plugs, the cardboard separated by die-cutting can be pushed out from the blade. Step 6: Test the product. After all adjustments are ready, first mold out a sample and make a comprehensive inspection to see if all product indicators meet the requirements; Step 7: Confirm the sample, confirm that all items tested meet the standards, determine the product as a sample, and officially start production; Step 8: Finished product inspection: set a finished product inspection component above the die-cut finished product; Step 9: Waste treatment: remove the excess edge material of the product after die cutting and creasing; In step 2, when installing the die plate, the die plate of the die cutting machine is centrally positioned using a central positioning system. During the positioning process, the position of the upper die is calibrated with the assistance of rollers on both sides of the positioning column, so that the upper die and the lower die are aligned. At the same time, the upper die and the mounting seat are kept in active connection, which will not affect the operation of the stamping device. In step 4, the detection value of the pressure sensor is set, and then the pressure sensor is connected to the control device through a wireless signal device, and the control device is used to control the downward pressure position of the steel knife and the steel wire, so that the steel knife and the steel wire stop working when the pressure sensor reaches the detection value, so as to ensure the beauty of the composite paper after forming and avoid damage to the paper; In step 3, the position and direction of the indentation line of the steel knife and the steel wire are adjusted to avoid setting the indentation line at the position of stress concentration. After the adjustment is completed, the position and direction of the steel knife and the steel wire are recorded as the preliminary determination data of the indentation; In step 6, if the product is qualified, the product is used as a qualified sample, and the sample is first used as a control group, and then the numerical parameters of the die-cutting machine under the product are marked and used as a reference; if the product is unqualified, the product is scrapped, and step 6 is continued until a qualified product appears; In step eight, a conveyor belt is set at the finished product outlet for product conveying, an infrared detector is set above the finished product outlet, and an electric push rod is installed on one side of the conveyor belt. The infrared detector is used to detect the depth of the indentation on the surface of the finished product and a treatment is made. The treatment method is as follows: when the infrared detector detects that the finished product is a qualified product, it sends a signal (marked as signal one) to the control device through a wireless signal device, and the control device controls the conveyor belt to work, so that it conveys the finished product to the packaging area; when the infrared detector detects that the finished product is a defective product, it sends a signal (marked as signal two) to the control device through a wireless signal device, controls the electric push rod to work, and pushes the defective product off the conveyor belt through the electric push rod, and drops it into the waste collection device for collection; In step nine, the waste is divided into three parts. The first part is the unqualified products in step six; the second part is the unqualified products in step eight; the third part is the scraps of the products in the molding process. Among them, the first part and the second part are collected together and reprocessed to ensure that the product unqualified rate is reduced to a minimum and the cost is saved to the greatest extent. The scraps are recycled and reused as environmentally friendly waste.

[0016] Embodiment 1: The creasing processing method of composite paper comprises the following steps: Step 1: Make a mold plate. According to the design requirements of the product, make the corresponding mold plate. The grid of the mold plate must match the printed grid. Choose the appropriate paper material to ensure that it has sufficient strength and toughness to withstand the pressure during processing without breaking easily. For the parts that need to be folded or bent, consider using materials with good flexibility; Step 2: Adjust the embossing plate, install and fix the prepared embossing plate in the plate frame of the die-cutting machine, preliminarily adjust the position, and obtain the preliminary die-cutting and creasing effect; Step 3: Adjust the pressure, first adjust the pressure of the steel knife, then adjust the pressure of the steel wire; Step 4: Measure the pressure, install pressure sensors at the steel knife and steel wire positions, and display the data on the display screen; Step 5: Glue the rubber plugs on both sides of the main steel blade of the template. Using the elastic restoring force of the rubber plugs, the cardboard separated by die-cutting can be pushed out from the blade. Step 6: Test the product. After all adjustments are ready, first mold out a sample and make a comprehensive inspection to see if all product indicators meet the requirements; Step 7: Confirm the sample, confirm that all items tested meet the standards, determine the product as a sample, and officially start production; Step 8: Finished product inspection: set a finished product inspection component above the die-cut finished product; Step 9: Waste treatment: remove the excess edge material of the product after die cutting and creasing; In step 2, when installing the die plate, the die plate of the die cutting machine is centrally positioned using a central positioning system. During the positioning process, the position of the upper die is calibrated with the assistance of rollers on both sides of the positioning column, so that the upper die and the lower die are aligned. At the same time, the upper die and the mounting seat are kept in active connection, which will not affect the operation of the stamping device. In step 4, the detection value of the pressure sensor is set, and then the pressure sensor is connected to the control device through a wireless signal device, and the control device is used to control the downward pressure position of the steel knife and the steel wire, so that the steel knife and the steel wire stop working when the pressure sensor reaches the detection value, so as to ensure the beauty of the composite paper after forming and avoid damage to the paper; In step 3, the position and direction of the indentation line of the steel knife and the steel wire are adjusted to avoid setting the indentation line at the position of stress concentration. After the adjustment is completed, the position and direction of the steel knife and the steel wire are recorded as the preliminary determination data of the indentation; In step 6, if the product is qualified, the product is used as a qualified sample, and the sample is first used as a control group, and then the numerical parameters of the die-cutting machine under the product are marked and used as a reference; if the product is unqualified, the product is scrapped, and step 6 is continued until a qualified product appears. Before the test, a temperature and humidity sensor is set to detect the temperature and humidity around the composite paper. When it is detected that the temperature is higher or lower than the temperature required for processing, a temperature controller is equipped to heat or cool the surrounding environment of the paper processing; if the humidity is detected to be higher or lower than the temperature required for processing, a humidifier or dehumidifier is equipped to humidify or dehumidify the surrounding environment of the paper processing, so as to ensure that the surrounding area is in a suitable temperature and humidity environment and reduce the impact caused by the environment; In step eight, a conveyor belt is set at the finished product outlet for product conveying, an infrared detector is set above the finished product outlet, and an electric push rod is installed on one side of the conveyor belt. The infrared detector is used to detect the depth of the indentation on the surface of the finished product and a treatment is made. The treatment method is as follows: when the infrared detector detects that the finished product is a qualified product, it sends a signal (marked as signal one) to the control device through a wireless signal device, and the control device controls the conveyor belt to work, so that it conveys the finished product to the packaging area; when the infrared detector detects that the finished product is a defective product, it sends a signal (marked as signal two) to the control device through a wireless signal device, controls the electric push rod to work, and pushes the defective product off the conveyor belt through the electric push rod, and drops it into the waste collection device for collection; In step nine, the waste is divided into three parts. The first part is the unqualified products in step six; the second part is the unqualified products in step eight; the third part is the scraps of the products in the molding process. Among them, the first part and the second part are collected together and reprocessed to ensure that the product unqualified rate is reduced to a minimum and the cost is saved to the greatest extent. The scraps are recycled and reused as environmentally friendly waste.

[0017] In summary: the indentation processing method of the composite paper installs pressure sensors at the steel knife and steel wire positions of the molding machine to monitor the pressure during the indentation process in real time and perform secondary inspection on the processed products, thereby solving the problem of being unable to detect the indentation pressure. During the indentation process, the impression may vary in depth, which may seriously cause cracks in the paper. If the product is not subjected to secondary inspection after processing, it is easy to cause the problem of unqualified products being missed.

Claims

1. A method for creasing composite paper, characterized in that The following steps are involved: Step 1: Make a mold plate. According to the design requirements of the product, make the corresponding mold plate. The grid positions of the mold plate must match the printed grid positions. Step 2: Adjust the embossing plate, install and fix the prepared embossing plate in the plate frame of the die-cutting machine, preliminarily adjust the position, and obtain the preliminary die-cutting and creasing effect; Step 3: Adjust the pressure, first adjust the pressure of the steel knife, then adjust the pressure of the steel wire; Step 4: Measure the pressure, install pressure sensors at the steel knife and steel wire positions, and display the data on the display screen; Step 5: Glue the rubber plugs on both sides of the main steel blade of the template. Using the elastic restoring force of the rubber plugs, the cardboard separated by die-cutting can be pushed out from the blade. Step 6: Test the product. After all adjustments are ready, first mold out a sample and make a comprehensive inspection to see if all product indicators meet the requirements; Step 7: Confirm the sample, confirm that all items tested meet the standards, determine the product as a sample, and officially start production; Step 8: Finished product inspection: set a finished product inspection component above the die-cut finished product; Step 9: Waste disposal: remove excess edge material from products after die-cutting and creasing.

2. The method for creasing composite paper according to claim 1, characterized in that: In the step 2, when installing the embossing plate, a center positioning system is used to center the embossing plate of the die-cutting machine. During the positioning process, with the assistance of rollers on both sides of the positioning column, the position of the upper mold is calibrated so that the upper mold and the lower mold are aligned. At the same time, the upper mold and the mounting seat remain movably connected, which will not affect the operation of the stamping device.

3. The method for creasing composite paper according to claim 1, characterized in that: In step 4, the detection value of the pressure sensor is set, and then the pressure sensor is connected to the control device through a wireless signal device, and the control device is used to control the downward pressure position of the steel knife and the steel wire, so that the steel knife and the steel wire stop working when the pressure sensor reaches the detection value, so as to ensure the beauty of the composite paper after forming and avoid damage to the paper.

4. The method for creasing composite paper according to claim 1, characterized in that: In the step three, the position and direction of the indentation lines of the steel knife and the steel wire are adjusted to avoid setting the indentation lines at the location of stress concentration. After the adjustment is completed, the position and direction of the steel knife and the steel wire are recorded as preliminary determination data of the indentation.

5. The method for creasing composite paper according to claim 1, characterized in that: In step six, if the product is qualified, the product is used as a qualified sample. First, the sample is used as a control group, and then the various numerical parameters of the die-cutting machine under the product are marked and used as a reference; if the product is unqualified, the product is scrapped and step six is ​​continued until a qualified product appears.

6. The method for creasing composite paper according to claim 1, characterized in that: In the step eight, a conveyor belt is set at the finished product outlet for product conveying, an infrared detector is set above the finished product outlet, and an electric push rod is installed on one side of the conveyor belt. The infrared detector is used to detect the depth of the indentation on the surface of the finished product and take action.

7. The method for creasing composite paper according to claim 6, characterized in that: The processing method is as follows: when the infrared detector detects that the finished product is a qualified product, it sends a signal (marked as signal one) to the control device through a wireless signal device, and the control device controls the conveyor belt to work so that it conveys the finished product to the packaging area; when the infrared detector detects that the finished product is an unqualified product, it sends a signal (marked as signal two) to the control device through a wireless signal device, controls the electric push rod to work, and pushes the unqualified product off the conveyor belt through the electric push rod, and drops it into the waste collection device for collection.

8. The method for creasing composite paper according to claim 1, characterized in that: In the step nine, the waste is divided into three parts, the first part is the unqualified products in step six; the second part is the unqualified products in step eight; the third part is the scraps of the products in the molding process, wherein the first part and the second part are collected together and reprocessed to ensure that the product unqualified rate is reduced to a minimum and the cost is saved to the greatest extent, and the scraps are recycled and reused as environmentally friendly waste.