Packing belt manufacturing system and using method thereof

Abstract

The invention provides a packing belt manufacturing system and a using method thereof, and the method comprises the following steps: S1, heating a raw material to a molten state, extruding the molten raw material through a fine nozzle of a segmented screw extruder to form a belt blank, and rapidly cooling the belt blank to form an initial form of a packing belt; s2, a stretching system carries out stretching treatment on the cooled packing belt, and meanwhile, a heating system carries out high-temperature shaping treatment on the packing belt in the stretching process; s3, the surface of the packing belt is heated again, and the preset patterns are printed on the surface of the packing belt while the surface of the packing belt is softened; and S4, the packing belt is wound through a winding rod, the wound packing belt is cut into different lengths through a cutting system, and finally the cut packing belt is packaged. According to different raw materials and customer requirements, technological parameters such as melting heating, stretching and embossing can be adjusted, and packing belts of different specifications and different properties can be produced.

Description

Technical Field

[0001] The present invention relates to the technical field of strapping tape manufacturing, and in particular to a strapping tape manufacturing system and a use method thereof. Background Art

[0002] The strapping tape manufacturing system is mainly used to produce strapping tapes for packaging and bundling items. Strapping tapes are widely used in logistics, warehousing and transportation industries. Although strapping tape manufacturing technology has made great progress, it still faces technical problems and challenges: strapping tape manufacturing involves multiple process links, and the fine control of parameters in each link is crucial to product quality. However, traditional control systems often find it difficult to achieve high-precision control throughout the process. In order to meet market demand, a variety of new high-performance materials have been developed, but the existing manufacturing system has certain limitations in adapting to new materials and requires new equipment and process support. Summary of the invention

[0003] In view of the above technical problems, the present invention proposes a strapping tape manufacturing system and a method for using the same, and the technical solutions adopted are as follows:

[0004] A method for manufacturing a strapping tape, characterized in that the method comprises:

[0005] S1: heating the raw materials to a molten state, and extruding the molten raw materials through a fine nozzle of a segmented screw extruder to form a strapping embryo, and rapidly cooling the strapping embryo to form the initial form of the strapping tape;

[0006] S2: The stretching system stretches the cooled strapping tape, and the heating system performs high-temperature shaping on the strapping tape during the stretching process;

[0007] S3: The surface of the strapping tape is heated again, and while the surface of the strapping tape is softened, a preset pattern is printed on the surface of the strapping tape;

[0008] S4: The winding rod reels the strapping tape, and the cutting system cuts the rewound strapping tape into different lengths. Finally, the cut strapping tape is packaged.

[0009] Preferably, the S1 includes:

[0010] S11: Clean the raw materials, and mix the masterbatch into the raw materials through a masterbatch machine according to a preset ratio of masterbatch and raw materials;

[0011] S12: The raw material is put into the feeding area of ​​the segmented screw extruder. The feeding area of ​​the segmented screw extruder includes a first preheating system, which heats the raw material and then sends the raw material to the compression area through the transmission system;

[0012] S13: The temperature of the compression zone of the segmented screw extruder is gradually increased to heat the molten raw material. At the same time, according to a preset pressure value, the screw speed and rotation speed of the segmented screw extruder are controlled to control the pressure of the molten raw material in the compression zone. When the raw material in the compression zone is completely dissolved, the dissolved raw material is sent to the homogenization zone through the transmission system;

[0013] S14: The homogenization zone is continuously heated and pressurized to make the raw material reach a uniform temperature and viscosity, and is extruded through a fine nozzle of a segmented screw extruder to form a ribbon embryo, and the high-temperature and high-pressure ribbon embryo is quickly cooled through a No. 1 cooling system to solidify and form.

[0014] Preferably, S2 includes:

[0015] S21: After the No. 2 preheating system preliminarily softens the strapping tape, the strapping tape is sent to the main stretching area through the transmission system;

[0016] S22: The stretching system stretches the strapping tape through a stretching roller according to a preset stretching ratio;

[0017] S23: The heating system in the main stretching system heats the strapping tape to a preset temperature during the stretching process, so that the strapping tape forms a stable and high-strength structure;

[0018] S24: The stretched and heated strapping tape is rapidly cooled by the second cooling system to fix the shape and size of the strapping tape.

[0019] Preferably, S3 includes:

[0020] S31: The strapping tape enters the embossing area of ​​the embossing system through the transmission system, and the embossing roller embosses the pattern on the surface of the strapping tape under a set pressure;

[0021] S32: The embossed strapping tape is immediately sent to the No. 3 cooling system through the transmission system to cool and solidify the surface pattern.

[0022] Preferably, the S4 includes:

[0023] S41: The strapping tape after stretching, shaping and embossing is transmitted to the winding machine through the transmission system and fixed on the winding rod through the fixing system;

[0024] S42: The winding machine starts, the winding rod starts to rotate, and the strapping tape is wound on the winding rod. At the same time, the guiding system is used to ensure that the strapping tape is evenly distributed during the winding process;

[0025] S43: When the strapping tape wound on the winding rod reaches a set length, the winding machine stops to form a strapping tape roll, and the strapping tape roll is cut by an automatic cutting device, and finally the cut strapping tape roll is packaged.

[0026] A strapping tape manufacturing system, characterized in that the system comprises:

[0027] Melting and heating system: heat the raw materials to a molten state, and extrude the molten raw materials through the fine nozzle of the segmented screw extruder to form a strip embryo, and quickly cool the strip embryo to form the initial shape of the strapping tape;

[0028] Stretching system: The stretching system stretches the strapping tape after cooling, and the heating system performs high-temperature shaping on the strapping tape during the stretching process;

[0029] Embossing system: The surface of the strapping tape is heated again, and while the surface of the strapping tape is softened, the preset pattern is printed on the surface of the strapping tape;

[0030] Rewinding system: The rewinding rod rewinds the strapping tape, and the cutting system cuts the rewound strapping tape into different lengths. Finally, the cut strapping tape is packaged.

[0031] Preferably, the melting heating system comprises:

[0032] Pre-cleaning system: clean the raw materials and mix the masterbatch into the raw materials through the masterbatch machine according to the preset ratio of masterbatch and raw materials;

[0033] Preheating system No. 1: The raw material is put into the feeding area of ​​the segmented screw extruder. The feeding area of ​​the segmented screw extruder contains a preheating system No. 1, which heats the raw material and then sends the raw material to the compression area through the transmission system;

[0034] Compression system: The temperature of the compression zone of the segmented screw extruder gradually increases to heat the molten raw materials. At the same time, according to the preset pressure value, the pressure of the molten raw materials in the compression zone is controlled by controlling the screw speed and rotation speed of the segmented screw extruder. When the raw materials in the compression zone are completely dissolved, the dissolved raw materials are sent to the homogenization zone through the transmission system;

[0035] Homogenization system: The homogenization zone is continuously heated and pressurized to make the raw materials reach uniform temperature and viscosity, and then they are extruded through the fine nozzle of the segmented screw extruder to form a ribbon embryo. The high-temperature and high-pressure ribbon embryo is quickly cooled through the No. 1 cooling system to solidify and form.

[0036] Preferably, the stretching system comprises:

[0037] No. 2 preheating system: After the No. 2 preheating system preliminarily softens the strapping tape, it is sent to the main stretching area through the transmission system;

[0038] Stretching roller system: The stretching system stretches the strapping tape through the stretching roller according to the preset stretching ratio;

[0039] Built-in heating system in the stretching system: The heating system in the main stretching system heats the strapping tape to a preset temperature during the stretching process, so that the strapping tape forms a stable and high-strength structure;

[0040] No. 2 Cooling System: The strapping tape after stretching and heating is quickly cooled by the No. 2 cooling system to fix the shape and size of the strapping tape.

[0041] Preferably, the embossing system comprises:

[0042] Embossing roller system: The strapping tape enters the embossing area of ​​the embossing system through the transmission system, and the embossing roller embosses the pattern on the surface of the strapping tape under the set pressure;

[0043] No. 3 cooling system: The embossed strapping tape is immediately sent to the No. 3 cooling system through the transmission system to cool and solidify the surface pattern.

[0044] Preferably, the winding system comprises:

[0045] Fixing system: The strapping tape that has been stretched, shaped and embossed is transferred to the winder through the conveying system and fixed on the winder rod through the fixing system;

[0046] Guide system: The winding machine starts, the winding rod starts to rotate, and the strapping tape is wound on the winding rod. At the same time, the guide system ensures that the strapping tape is evenly distributed during the winding process.

[0047] Cutting system: When the strapping tape wound on the winding rod reaches the set length, the winding machine stops to form a strapping tape roll, and the strapping tape roll is cut by automatic cutting equipment, and finally the cut strapping tape roll is packaged.

[0048] Beneficial effects of the present invention: The entire system realizes automatic control of the entire process from melt heating, stretching, embossing to winding, cutting and packaging. This highly automated production method not only greatly improves production efficiency, but also reduces the errors and costs caused by manual operation, which is conducive to large-scale production of enterprises. Through precise melt heating, cooling treatment, stretching shaping and embossing process, it can be ensured that each strapping tape meets uniform standards in terms of size, strength, hardness and appearance. This stability is of great significance for ensuring product quality and enhancing brand image. The combined use of the stretching system and the embossing system not only improves the tensile strength and hardness of the strapping tape, but also increases the friction between the strapping tape and the packaged object through embossing treatment, thereby improving the stability and safety of the packaging. This plays an important role in preventing goods from being scattered or damaged during transportation and storage. The system can adjust the process parameters such as melt heating, stretching, embossing, etc. according to different raw materials and customer needs to produce strapping tapes of different specifications and different performances. This flexibility enables the system to adapt to the diverse needs of the market and improve the market competitiveness of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 The present invention discloses a method for manufacturing a strapping tape. DETAILED DESCRIPTION

[0050] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0051] One embodiment of the present invention provides a method for manufacturing a strapping tape, characterized in that the method comprises:

[0052] S1: heating the raw materials to a molten state, and extruding the molten raw materials through a fine nozzle of a segmented screw extruder to form a strapping embryo, and rapidly cooling the strapping embryo to form the initial form of the strapping tape;

[0053] S2: The stretching system stretches the cooled strapping tape, and the heating system performs high-temperature shaping on the strapping tape during the stretching process;

[0054] S3: The surface of the strapping tape is heated again, and while the surface of the strapping tape is softened, a preset pattern is printed on the surface of the strapping tape;

[0055] S4: The winding rod reels the strapping tape, and the cutting system cuts the rewound strapping tape into different lengths. Finally, the cut strapping tape is packaged.

[0056] The working principle and effect of the above technical solution are as follows: the raw materials are heated to a molten state by a heating and melting system, and the molten state eliminates the solid cohesion in the material, greatly increasing its fluidity. The molten raw materials pass through a segmented screw extruder, in which the screw pushes the molten material to the extruder head. The extruder head is equipped with a fine nozzle, which accurately extrude the material with the help of high melting pressure to form a continuous strip embryo. The temperature and pressure are closely monitored during the extrusion process to ensure that the strip embryo is uniform. The extruded strip embryo passes through a cooling system and is quickly cooled to the solidification forming temperature. The cooled strapping tape enters the stretching system, in which the stretching roller applies tension for processing. During the stretching process, the strapping tape is heated to a specific high temperature by a heating system to achieve shaping treatment. The strapping tape after stretching and shaping passes through a heating device again to heat the surface. After heating, the surface softens and has good moldability. In the embossing system, the pattern or logo is embossed on the surface of the strapping tape by applying pressure through a preset pattern roller. After cooling and curing, the pattern is fixed on the surface. The strapping tape treated with the pattern is transmitted to the winding system. The winding rod evenly winds the strapping tape into a roll to ensure that the strapping tape is neat and tangle-free. After winding, the strapping tape is cut into the required length by the cutting system. The cut strapping tape roll is packaged. The packaging usually includes a protective film, a label and a strap. Each of the steps is operated by automated equipment, which improves production efficiency. The extrusion process is accurately controlled by the segmented spiral extruder to ensure uniform melting and molding of the raw materials. The strip embryo is quickly cooled to avoid material defects caused by uneven cooling. The stretching system and high-temperature shaping device ensure the consistency of the physical properties of the strapping tape, such as tensile strength and toughness, so that the final product has higher reliability and stability in use. By adjusting the melting temperature, extrusion speed, stretch ratio and shaping temperature, strapping tapes of different specifications and uses can be flexibly produced to meet different market needs.

[0057] In one embodiment of the present invention, the S1 includes:

[0058] S11: Clean the raw materials, and mix the masterbatch into the raw materials through a masterbatch machine according to a preset ratio of masterbatch and raw materials;

[0059] S12: The raw material is put into the feeding area of ​​the segmented screw extruder. The feeding area of ​​the segmented screw extruder includes a first preheating system, which heats the raw material and then sends the raw material to the compression area through the transmission system;

[0060] S13: The temperature of the compression zone of the segmented screw extruder is gradually increased to heat the molten raw material. At the same time, according to a preset pressure value, the screw speed and rotation speed of the segmented screw extruder are controlled to control the pressure of the molten raw material in the compression zone. When the raw material in the compression zone is completely dissolved, the dissolved raw material is sent to the homogenization zone through the transmission system;

[0061] S14: The homogenization zone is continuously heated and pressurized to make the raw material reach a uniform temperature and viscosity, and is extruded through a fine nozzle of a segmented screw extruder to form a ribbon embryo, and the high-temperature and high-pressure ribbon embryo is quickly cooled through a No. 1 cooling system to solidify and form.

[0062] The working principle and effect of the above technical solution are as follows: according to the color requirements of the product design, the ratio of masterbatch to raw material is preset, and the masterbatch is precisely controlled by the metering system, and the masterbatch is uniformly mixed with the raw material. A preheating system is set in the feeding area of ​​the segmented screw extruder to preliminarily heat the raw material, and the preheated raw material is sent to the compression area. The screw rotates to push the raw material forward continuously, and further heats the raw material through friction and shearing. The compression area of ​​the segmented screw extruder gradually increases the temperature to fully melt the raw material. This process requires precise temperature control, and heating is performed step by step through the regionally distributed heating device. The pressure in the compression area is controlled by adjusting the speed and rotation speed of the screw, so that the raw material is uniformly compressed and melted. After reaching the set temperature and pressure, the raw material is fully melted to form a uniform molten state. The molten raw material enters the homogenization area and is maintained for a period of time to achieve uniform temperature and viscosity. In the homogenization area, by maintaining a constant temperature and pressure, the internal fluidity of the plastic melt is kept constant, and the molecular segment aggregation is eliminated to form braid solidity. After reaching the predetermined viscosity and temperature, the molten raw material is extruded through the fine nozzle of the segmented screw extruder to form a ribbon embryo. Once the ribbon embryo is extruded, it quickly enters the cooling system, and the ribbon embryo is quickly cooled and solidified through a water cooling or air cooling device. The masterbatch and raw material ratio is accurately controlled by the masterbatch machine to ensure the consistency of color and material, thereby improving the appearance quality of the product. Continuous heating and pressurization in the homogenization zone allows the raw material to reach a uniform temperature and viscosity to ensure the uniformity of the material. The homogenization treatment eliminates defects such as crystallization and bubbles in the raw material, so that the final ribbon embryo has excellent mechanical properties. The design and use of the segmented screw extruder makes the production process continuous and efficient, reducing downtime and machine change time. Through the fine control of the screw speed and rotation speed, the heating and melting process can be optimized to reduce material waste.

[0063] In one embodiment of the present invention, S2 includes:

[0064] S21: After the No. 2 preheating system preliminarily softens the strapping tape, the strapping tape is sent to the main stretching area through the transmission system;

[0065] S22: The stretching system stretches the strapping tape through a stretching roller according to a preset stretching ratio;

[0066] S23: The heating system in the main stretching system heats the strapping tape to a preset temperature during the stretching process, so that the strapping tape forms a stable and high-strength structure;

[0067] S24: The stretched and heated strapping tape is rapidly cooled by the second cooling system to fix the shape and size of the strapping tape.

[0068] The working principle and effect of the above technical solution are as follows: the strapping tape is preliminarily softened before stretching so that it is easier to deform during stretching. The preheated strapping tape is conveyed to the main stretching zone. By controlling the stretching ratio, the strapping tape reaches the preset mechanical properties. The stretching system is mainly composed of a stretching roller system, and the rollers in the stretching roller system are arranged at a preset speed and spacing to achieve step-by-step stretching of the strapping tape. The strapping tape is subjected to tension by the stretching roller so that it is extended under directional tension, so as to rearrange the molecular chains of the material and improve the strength and toughness of the material. The strapping tape is heated during the stretching process to maintain a stable high temperature state to further achieve the shaping of the material. The strapping tape after stretching and shaping is quickly cooled to fix its shape and size and maintain a high-strength structure. Through a real-time monitoring system with a temperature sensor, it is ensured that the temperature of the strapping tape changes evenly during the cooling process, no internal stress is generated, and warping or deformation is prevented. The second preheating system preheats the strapping tape to a softened state, making the material easier to stretch and reducing the risk of breakage during the stretching process. The preheating system ensures that the temperature of the strapping tape is uniform before entering the main stretching zone, reducing the temperature gradient that may occur during the stretching process and reducing stress concentration. The stretching process aligns the molecular chains of the material, improves the tensile strength and toughness of the strapping tape, and increases the reliability of the product. Through stretching, the molecular structure of the strapping tape is stretched and deformed to a preset state, which significantly improves the physical properties of the material, including its ductility and elasticity. High-precision stretching rollers and control systems are used to ensure the stability and consistency of the stretching process and improve product consistency. The heating system in the main stretching system ensures that the strapping tape is heated to the appropriate temperature during the stretching process, and the molecular chains are oriented and solidified in the stretched state. High-temperature shaping improves the dimensional stability of the strapping tape, making the product less likely to deform during subsequent processes and actual use.

[0069] In one embodiment of the present invention, S3 includes:

[0070] S31: After the surface of the strapping tape is softened by the heating system of the embossing system, it enters the embossing area of ​​the embossing system through the transmission system, and the embossing roller embosses the pattern on the surface of the strapping tape under a set pressure;

[0071] S32: The embossed strapping tape is immediately sent to the No. 3 cooling system through the transmission system to cool and solidify the surface pattern.

[0072] The working principle and effect of the above technical solution are as follows: according to the material properties and melting point, a suitable preheating temperature is set so that the material surface softens but does not melt. The conveying system stably and continuously conveys the stretched and shaped strapping tape to the heating zone of the embossing system. The strapping tape surface is locally heated by the heater of the stretching system, and the residual heat remains on the strapping tape surface, so that the surface softens for embossing. The hardness tester measures the hardness of the strapping tape by pressing or contacting, and the Rockwell hardness tester is used, and the measured data will be recorded in real time. The laser thickness gauge measures the thickness of the strapping tape by non-contact or contact method, and the measurement data is transmitted and recorded in real time. The hardness and thickness data of the strapping tape are transmitted to the control system in the embossing roller system through the data bus. The built-in microprocessor or PLC receives the hardness and thickness measurement data in real time. The built-in algorithm of the control system calculates the embossing pressure to be applied according to the input hardness and thickness data, and controls the pressure device of the embossing roller through the hydraulic system and the servo system to dynamically adjust the embossing pressure in real time. The control system sets and adjusts the surface temperature of the embossing roller according to the material characteristics of the strapping tape and the hardness and thickness data measured in real time. The surface temperature of the embossing roller is precisely controlled by the electric heater to ensure the softening effect of the strapping tape surface. The embossing roller clearly embosses the preset pattern on the strapping tape surface at the set pressure and temperature. The embossed strapping tape is immediately sent to the No. 3 cooling system through the conveyor system, and the surface temperature of the strapping tape drops rapidly, and the pattern solidifies and takes shape. The control system dynamically adjusts the embossing pressure and roller temperature based on the real-time measured data to ensure that the strapping tape is embossed in the best condition. The embossing system can automatically adjust the pressure and temperature of the embossing roller according to different materials and thicknesses to ensure consistent embossing effects. Through real-time measurement and dynamic adjustment, the system can quickly correct and optimize production parameters and significantly reduce the defective rate.

[0073] In one embodiment of the present invention, the S4 includes:

[0074] S41: The strapping tape after stretching, shaping and embossing is transmitted to the winding machine through the transmission system and fixed on the winding rod through the fixing system;

[0075] S42: The winding machine starts, the winding rod starts to rotate, and the strapping tape is wound on the winding rod. At the same time, the guiding system is used to ensure that the strapping tape is evenly distributed during the winding process;

[0076] S43: When the strapping tape wound on the winding rod reaches a set length, the winding machine stops to form a strapping tape roll, and the strapping tape roll is cut by an automatic cutting device, and finally the cut strapping tape roll is packaged.

[0077] The working principle and effect of the above technical solution are as follows: the strapping tape that has been stretched, shaped and embossed is conveyed from the cooling area to the reel through the conveying system. The reel includes one or more reeling rods, and the fixing system may include a clamp or an automatic fixing device for firmly fixing the strapping tape on the reeling rod. When the strapping tape reaches the reel, the fixing system automatically fixes one end of the strapping tape on the reeling rod to ensure that the tape does not slip or loosen during the winding process. The reeling system starts the reel, and the reeling rod starts to rotate, automatically winding the strapping tape on the reeling rod. The rotation speed of the reeling rod is precisely controlled by the frequency converter and the servo control system to ensure that the reeling speed and the transmission speed are synchronized to prevent the tension of the strapping tape from changing or stretching and deforming. The guide system includes a movable guide rail or an adjustment frame for automatically adjusting the position of the strapping tape during the reeling process. The lateral position of the strapping tape is detected by a sensor, fed back to the control system, and the reeling position is adjusted by a corresponding mechanism to ensure that the strapping tape is evenly distributed during the reeling process to avoid deviation or uneven winding. The system is provided with a length counter for recording and monitoring the winding length of the strapping tape. When the winding length reaches the set value, the winder automatically stops rotating, stops counting and releases the fixing system. The system triggers the automatic cutting device according to the preset length, quickly and accurately cutting the strapping tape from the winding rod. Automatic adjustment is made according to the packaging specifications and requirements to ensure that the strapping tape roll position and arrangement are appropriate. Intelligent packaging equipment automatically seals, labels and bundles to complete the overall packaging steps of the product. Conveyor systems such as belt conveyors or roller conveyor systems can effectively reduce the wrinkling or detachment of the strapping tape during transmission and improve transmission efficiency. The fixing system automatically fixes the strapping tape on the winding rod to ensure that the strapping tape will not slip or loosen during the winding process. The winder drives the winding rod to rotate through an electric motor, and uses a frequency converter or servo control to achieve precise control of the speed to ensure stable winding of the strapping tape. The system can control the winding tension in real time to ensure that the strapping tape will not deform under tension and maintain tension consistency. The guide system automatically adjusts the position of the strapping tape to ensure uniform distribution during the winding process to avoid winding deviation and unevenness. The integrated length counter or encoder monitors the winding length of the strapping tape in real time to ensure that the length of each roll of product is consistent and avoid errors. The automatic cutting device accurately cuts the strapping tape according to the preset length, cuts neatly, does not require manual operation, and is highly efficient. After the cutting is completed, the system quickly prepares for the next strapping tape roll, reducing the switching time and improving production efficiency.

[0078] One embodiment of the present invention provides a strapping tape manufacturing system, characterized in that the system comprises:

[0079] Melting and heating system: heat the raw materials to a molten state, and extrude the molten raw materials through the fine nozzle of the segmented screw extruder to form a strip embryo, and quickly cool the strip embryo to form the initial shape of the strapping tape;

[0080] Stretching system: The stretching system stretches the strapping tape after cooling, and the heating system performs high-temperature shaping on the strapping tape during the stretching process;

[0081] Embossing system: The surface of the strapping tape is heated again, and while the surface of the strapping tape is softened, the preset pattern is printed on the surface of the strapping tape;

[0082] Rewinding system: The rewinding rod rewinds the strapping tape, and the cutting system cuts the rewound strapping tape into different lengths. Finally, the cut strapping tape is packaged.

[0083] The working principle and effect of the above technical solution are as follows: the raw materials are heated to a molten state by a heating and melting system, and the molten state eliminates the solid cohesion in the material, greatly increasing its fluidity. The molten raw materials pass through a segmented screw extruder, in which the screw pushes the molten material to the extruder head. The extruder head is equipped with a fine nozzle, which accurately extrude the material with the help of high melting pressure to form a continuous strip embryo. The temperature and pressure are closely monitored during the extrusion process to ensure that the strip embryo is uniform. The extruded strip embryo passes through a cooling system and is quickly cooled to the solidification forming temperature. The cooled strapping tape enters the stretching system, in which the stretching roller applies tension for processing. During the stretching process, the strapping tape is heated to a specific high temperature by a heating system to achieve shaping treatment. The strapping tape after stretching and shaping passes through a heating device again to heat the surface. After heating, the surface softens and has good moldability. In the embossing system, the pattern or logo is embossed on the surface of the strapping tape by applying pressure through a preset pattern roller. After cooling and curing, the pattern is fixed on the surface. The strapping tape treated with the pattern is transmitted to the winding system. The winding rod evenly winds the strapping tape into a roll to ensure that the strapping tape is neat and tangle-free. After winding, the strapping tape is cut into the required length by the cutting system. The cut strapping tape roll is packaged. The packaging usually includes a protective film, a label and a strap. Each of the steps is operated by automated equipment, which improves production efficiency. The extrusion process is accurately controlled by the segmented spiral extruder to ensure uniform melting and molding of the raw materials. The strip embryo is quickly cooled to avoid material defects caused by uneven cooling. The stretching system and high-temperature shaping device ensure the consistency of the physical properties of the strapping tape, such as tensile strength and toughness, so that the final product has higher reliability and stability in use. By adjusting the melting temperature, extrusion speed, stretch ratio and shaping temperature, strapping tapes of different specifications and uses can be flexibly produced to meet different market needs.

[0084] In one embodiment of the present invention, the melting heating system comprises:

[0085] Pre-cleaning system: clean the raw materials and mix the masterbatch into the raw materials through the masterbatch machine according to the preset ratio of masterbatch and raw materials;

[0086] Preheating system No. 1: The raw material is put into the feeding area of ​​the segmented screw extruder. The feeding area of ​​the segmented screw extruder contains a preheating system No. 1, which heats the raw material and then sends the raw material to the compression area through the transmission system;

[0087] Compression system: The temperature of the compression zone of the segmented screw extruder gradually increases to heat the molten raw materials. At the same time, according to the preset pressure value, the pressure of the molten raw materials in the compression zone is controlled by controlling the screw speed and rotation speed of the segmented screw extruder. When the raw materials in the compression zone are completely dissolved, the dissolved raw materials are sent to the homogenization zone through the transmission system;

[0088] Homogenization system: The homogenization zone is continuously heated and pressurized to make the raw materials reach uniform temperature and viscosity, and then they are extruded through the fine nozzle of the segmented screw extruder to form a ribbon embryo. The high-temperature and high-pressure ribbon embryo is quickly cooled through the No. 1 cooling system to solidify and form.

[0089] The working principle and effect of the above technical solution are as follows: according to the color requirements of the product design, the ratio of masterbatch to raw material is preset, and the masterbatch is precisely controlled by the metering system, and the masterbatch is uniformly mixed with the raw material. A preheating system is set in the feeding area of ​​the segmented screw extruder to preliminarily heat the raw material, and the preheated raw material is sent to the compression area. The screw rotates to push the raw material forward continuously, and further heats the raw material through friction and shearing. The compression area of ​​the segmented screw extruder gradually increases the temperature to fully melt the raw material. This process requires precise temperature control, and heating is performed step by step through the regionally distributed heating device. The pressure in the compression area is controlled by adjusting the speed and rotation speed of the screw, so that the raw material is uniformly compressed and melted. After reaching the set temperature and pressure, the raw material is fully melted to form a uniform molten state. The molten raw material enters the homogenization area and is maintained for a period of time to achieve uniform temperature and viscosity. In the homogenization area, by maintaining a constant temperature and pressure, the internal fluidity of the plastic melt is kept constant, and the molecular segment aggregation is eliminated to form braid solidity. After reaching the predetermined viscosity and temperature, the molten raw material is extruded through the fine nozzle of the segmented screw extruder to form a ribbon embryo. Once the ribbon embryo is extruded, it quickly enters the cooling system, and the ribbon embryo is quickly cooled and solidified through a water cooling or air cooling device. The masterbatch and raw material ratio is accurately controlled by the masterbatch machine to ensure the consistency of color and material, thereby improving the appearance quality of the product. Continuous heating and pressurization in the homogenization zone allows the raw material to reach a uniform temperature and viscosity to ensure the uniformity of the material. The homogenization treatment eliminates defects such as crystallization and bubbles in the raw material, so that the final ribbon embryo has excellent mechanical properties. The design and use of the segmented screw extruder makes the production process continuous and efficient, reducing downtime and machine change time. Through the fine control of the screw speed and rotation speed, the heating and melting process can be optimized to reduce material waste.

[0090] In one embodiment of the present invention, the stretching system comprises:

[0091] No. 2 preheating system: After the No. 2 preheating system preliminarily softens the strapping tape, it is sent to the main stretching area through the transmission system;

[0092] Stretching roller system: The stretching system stretches the strapping tape through the stretching roller according to the preset stretching ratio;

[0093] Built-in heating system in the stretching system: The heating system in the main stretching system heats the strapping tape to a preset temperature during the stretching process, so that the strapping tape forms a stable and high-strength structure;

[0094] No. 2 Cooling System: The strapping tape after stretching and heating is quickly cooled by the No. 2 cooling system to fix the shape and size of the strapping tape.

[0095] The working principle and effect of the above technical solution are as follows: the strapping tape before stretching is preliminarily softened so that it is easier to deform during stretching. The preheated strapping tape is conveyed to the main stretching zone. By controlling the stretching ratio, the strapping tape reaches the preset mechanical properties. The stretching system is mainly composed of a stretching roller system, and the rollers in the stretching roller system are arranged at a preset speed and spacing to achieve step-by-step stretching of the strapping tape. The strapping tape is stretched by the stretching roller to extend under directional tension, so as to rearrange the molecular chains of the material and improve the strength and toughness of the material. The strapping tape is heated during the stretching process to maintain a stable high temperature state to further achieve the shaping of the material. The strapping tape after stretching and shaping is quickly cooled to fix its shape and size and maintain a high-strength structure. Through a real-time monitoring system with a temperature sensor, it is ensured that the temperature of the strapping tape changes evenly during the cooling process, no internal stress is generated, and warping or deformation is prevented. The second preheating system preheats the strapping tape to a softened state, making the material easier to stretch and reducing the risk of breakage during the stretching process. The preheating system ensures that the temperature of the strapping tape is uniform before entering the main stretching zone, reducing the temperature gradient that may occur during the stretching process and reducing stress concentration. The stretching process aligns the molecular chains of the material, improves the tensile strength and toughness of the strapping tape, and increases the reliability of the product. Through stretching, the molecular structure of the strapping tape is stretched and deformed to a preset state, which significantly improves the physical properties of the material, including its ductility and elasticity. High-precision stretching rollers and control systems are used to ensure the stability and consistency of the stretching process and improve product consistency. The heating system in the main stretching system ensures that the strapping tape is heated to the appropriate temperature during the stretching process, and the molecular chains are oriented and solidified in the stretched state. High-temperature shaping improves the dimensional stability of the strapping tape, making the product less likely to deform during subsequent processes and actual use.

[0096] In one embodiment of the present invention, the embossing system comprises:

[0097] Embossing roller system: The strapping tape enters the embossing area of ​​the embossing system through the transmission system, and the embossing roller embosses the pattern on the surface of the strapping tape under the set pressure;

[0098] No. 3 cooling system: The embossed strapping tape is immediately sent to the No. 3 cooling system through the transmission system to cool and solidify the surface pattern.

[0099] The embossing system needs to ensure that appropriate pressure is applied to form a clear pattern while the surface of the strapping tape is softened. The embossing system can dynamically adjust the pressure to adapt to strapping tapes of different materials and thicknesses. The technical solutions adopted are as follows:

[0100] A: The hardness tester in the embossing roller system measures the hardness of the strapping tape, and the thickness gauge in the embossing roller system measures the thickness of the strapping tape, and transmits the measured data to the control system in the embossing roller system;

[0101] B: The control system in the embossing roller system dynamically adjusts the embossing pressure according to the measured strapping hardness and thickness data, and the specific pressure adjustment value is obtained by the following formula:

[0102]

[0103] Among them, H represents the hardness of the strapping tape, d represents the thickness of the strapping tape, and d 0 represents the average thickness of the strapping tape, α represents the thermal expansion coefficient of the strapping tape, T represents the embossing temperature of the embossing roller, T m It indicates the melting point of the strapping tape, t indicates the embossing time, and τ indicates the stress relaxation time of the strapping tape. τ is a constant obtained through experimental testing.

[0104] In addition, the embossing speed T of the embossing roller is dynamically adjusted, wherein the specific adjustment value of the temperature is obtained by the following formula:

[0105]

[0106] Among them, T n It indicates the surface temperature of the strapping tape, v indicates the diffusion rate of the residual temperature on the surface of the strapping tape after it is heated in the stretching zone and reaches the embossing system. The temperature diffusion rate is a value measured by experimental tests, and λ indicates the thermal conductivity coefficient of the strapping tape;

[0107] C: Through real-time measurement of the thickness and hardness of the strapping tape, the embossing system dynamically adjusts the surface temperature and embossing pressure of the embossing roller so that the embossing pattern is clearly printed on the surface of the strapping tape.

[0108] The working principle and effect of the above technical solution are as follows: according to the material properties and melting point, a suitable preheating temperature is set so that the material surface softens but does not melt. The conveying system stably and continuously conveys the stretched and shaped strapping tape to the heating zone of the embossing system. The strapping tape surface is locally heated by the heater of the stretching system, and the residual heat remains on the strapping tape surface, so that the surface softens for embossing. The hardness tester measures the hardness of the strapping tape by pressing or contacting, and the Rockwell hardness tester is used, and the measured data will be recorded in real time. The laser thickness gauge measures the thickness of the strapping tape by non-contact or contact method, and the measurement data is transmitted and recorded in real time. The hardness and thickness data of the strapping tape are transmitted to the control system in the embossing roller system through the data bus. The built-in microprocessor or PLC receives the hardness and thickness measurement data in real time. The built-in algorithm of the control system calculates the embossing pressure to be applied according to the input hardness and thickness data, and controls the pressure device of the embossing roller through the hydraulic system and the servo system to dynamically adjust the embossing pressure in real time. The control system sets and adjusts the surface temperature of the embossing roller according to the material characteristics of the strapping tape and the hardness and thickness data measured in real time. The surface temperature of the embossing roller is precisely controlled by the electric heater to ensure the softening effect of the strapping tape surface. The embossing roller clearly embosses the preset pattern on the strapping tape surface at the set pressure and temperature. The embossed strapping tape is immediately sent to the No. 3 cooling system through the conveyor system, and the surface temperature of the strapping tape drops rapidly, and the pattern solidifies and takes shape. The control system dynamically adjusts the embossing pressure and roller temperature based on the real-time measured data to ensure that the strapping tape is embossed in the best condition. The embossing system can automatically adjust the pressure and temperature of the embossing roller according to different materials and thicknesses to ensure consistent embossing effects. Through real-time measurement and dynamic adjustment, the system can quickly correct and optimize production parameters and significantly reduce the defective rate.

[0109] In one embodiment of the present invention, the winding system comprises:

[0110] Fixing system: The strapping tape that has been stretched, shaped and embossed is transferred to the winder through the conveying system and fixed on the winder rod through the fixing system;

[0111] Guide system: The winding machine starts, the winding rod starts to rotate, and the strapping tape is wound on the winding rod. At the same time, the guide system ensures that the strapping tape is evenly distributed during the winding process.

[0112] Cutting system: When the strapping tape wound on the winding rod reaches the set length, the winding machine stops to form a strapping tape roll, and the strapping tape roll is cut by automatic cutting equipment, and finally the cut strapping tape roll is packaged.

[0113] The working principle and effect of the above technical solution are as follows: the strapping tape that has been stretched, shaped and embossed is conveyed from the cooling area to the reel through the conveying system. The reel includes one or more reeling rods, and the fixing system may include a clamp or an automatic fixing device for firmly fixing the strapping tape on the reeling rod. When the strapping tape reaches the reel, the fixing system automatically fixes one end of the strapping tape on the reeling rod to ensure that the tape does not slip or loosen during the winding process. The reeling system starts the reel, and the reeling rod starts to rotate, automatically winding the strapping tape on the reeling rod. The rotation speed of the reeling rod is precisely controlled by the frequency converter and the servo control system to ensure that the reeling speed and the transmission speed are synchronized to prevent the tension of the strapping tape from changing or stretching and deforming. The guide system includes a movable guide rail or an adjustment frame for automatically adjusting the position of the strapping tape during the reeling process. The lateral position of the strapping tape is detected by a sensor, fed back to the control system, and the reeling position is adjusted by a corresponding mechanism to ensure that the strapping tape is evenly distributed during the reeling process to avoid deviation or uneven winding. The system is provided with a length counter for recording and monitoring the winding length of the strapping tape. When the winding length reaches the set value, the winder automatically stops rotating, stops counting and releases the fixing system. The system triggers the automatic cutting device according to the preset length, quickly and accurately cutting the strapping tape from the winding rod. Automatic adjustment is made according to the packaging specifications and requirements to ensure that the strapping tape roll position and arrangement are appropriate. Intelligent packaging equipment automatically seals, labels and bundles to complete the overall packaging steps of the product. Conveyor systems such as belt conveyors or roller conveyor systems can effectively reduce the wrinkling or detachment of the strapping tape during transmission and improve transmission efficiency. The fixing system automatically fixes the strapping tape on the winding rod to ensure that the strapping tape will not slip or loosen during the winding process. The winder drives the winding rod to rotate through an electric motor, and uses a frequency converter or servo control to achieve precise control of the speed to ensure stable winding of the strapping tape. The system can control the winding tension in real time to ensure that the strapping tape will not deform under tension and maintain tension consistency. The guide system automatically adjusts the position of the strapping tape to ensure uniform distribution during the winding process to avoid winding deviation and unevenness. The integrated length counter or encoder monitors the winding length of the strapping tape in real time to ensure that the length of each roll of product is consistent and avoid errors. The automatic cutting device accurately cuts the strapping tape according to the preset length, cuts neatly, does not require manual operation, and is highly efficient. After the cutting is completed, the system quickly prepares for the next strapping tape roll, reducing the switching time and improving production efficiency.

[0114] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for manufacturing a strapping tape, characterized in that: The method comprises: S1: heating the raw materials to a molten state, and extruding the molten raw materials through a fine nozzle of a segmented screw extruder to form a strapping embryo, and rapidly cooling the strapping embryo to form the initial form of the strapping tape; S2: The stretching system stretches the cooled strapping tape, and the heating system performs high-temperature shaping on the strapping tape during the stretching process; S3: The surface of the strapping tape is heated again, and while the surface of the strapping tape is softened, a preset pattern is printed on the surface of the strapping tape; S4: The winding rod reels the strapping tape, and the cutting system cuts the rewound strapping tape into different lengths. Finally, the cut strapping tape is packaged.

2. A method for manufacturing a strapping tape according to claim 1, characterized in that: The S1 includes: S11: Clean the raw materials, and mix the masterbatch into the raw materials through a masterbatch machine according to a preset ratio of masterbatch and raw materials; S12: The raw material is put into the feeding area of ​​the segmented screw extruder. The feeding area of ​​the segmented screw extruder includes a first preheating system, which heats the raw material and then sends the raw material to the compression area through the transmission system; S13: The temperature of the compression zone of the segmented screw extruder is gradually increased to heat the molten raw material. At the same time, according to a preset pressure value, the screw speed and rotation speed of the segmented screw extruder are controlled to control the pressure of the molten raw material in the compression zone. When the raw material in the compression zone is completely dissolved, the dissolved raw material is sent to the homogenization zone through the transmission system; S14: The homogenization zone is continuously heated and pressurized to make the raw material reach a uniform temperature and viscosity, and is extruded through a fine nozzle of a segmented screw extruder to form a ribbon embryo, and the high-temperature and high-pressure ribbon embryo is quickly cooled through a No. 1 cooling system to solidify and form.

3. A method for manufacturing a strapping tape according to claim 1, characterized in that: The S2 includes: S21: After the No. 2 preheating system preliminarily softens the strapping tape, the strapping tape is sent to the main stretching area through the transmission system; S22: The stretching system stretches the strapping tape through a stretching roller according to a preset stretching ratio; S23: The heating system in the main stretching system heats the strapping tape to a preset temperature during the stretching process, so that the strapping tape forms a stable and high-strength structure; S24: The stretched and heated strapping tape is rapidly cooled by the second cooling system to fix the shape and size of the strapping tape.

4. A method for manufacturing a strapping tape according to claim 1, characterized in that: The S3 includes: S31: The strapping tape enters the embossing area of ​​the embossing system through the transmission system, and the embossing roller embosses the pattern on the strapping tape surface under a set pressure; S32: The embossed strapping tape is immediately sent to the No. 3 cooling system through the transmission system to cool and solidify the surface pattern.

5. A method for manufacturing a strapping tape according to claim 1, characterized in that: The S4 includes: S41: The strapping tape after stretching, shaping and embossing is transmitted to the winding machine through the transmission system and fixed on the winding rod through the fixing system; S42: The winding machine starts, the winding rod starts to rotate, and the strapping tape is wound on the winding rod. At the same time, the guiding system is used to ensure that the strapping tape is evenly distributed during the winding process; S43: When the strapping tape wound on the winding rod reaches a set length, the winding machine stops to form a strapping tape roll, and the strapping tape roll is cut by an automatic cutting device, and finally the cut strapping tape roll is packaged.

6. A strapping tape manufacturing system, characterized in that: The system comprises: Melting and heating system: heat the raw materials to a molten state, and extrude the molten raw materials through the fine nozzle of the segmented screw extruder to form a strip embryo, and quickly cool the strip embryo to form the initial shape of the strapping tape; Stretching system: The stretching system stretches the strapping tape after cooling, and the heating system performs high-temperature shaping on the strapping tape during the stretching process; Embossing system: The surface of the strapping tape is heated again, and while the surface of the strapping tape is softened, the preset pattern is printed on the surface of the strapping tape; Rewinding system: The rewinding rod rewinds the strapping tape, and the cutting system cuts the rewound strapping tape into different lengths. Finally, the cut strapping tape is packaged.

7. A strapping tape manufacturing system according to claim 6, characterized in that: The melting heating system comprises: Pre-cleaning system: clean the raw materials and mix the masterbatch into the raw materials through the masterbatch machine according to the preset ratio of masterbatch and raw materials; Preheating system No. 1: The raw material is put into the feeding area of ​​the segmented screw extruder. The feeding area of ​​the segmented screw extruder contains a preheating system No. 1, which heats the raw material and then sends the raw material to the compression area through the transmission system; Compression system: The temperature of the compression zone of the segmented screw extruder gradually increases to heat the molten raw materials. At the same time, according to the preset pressure value, the pressure of the molten raw materials in the compression zone is controlled by controlling the screw speed and rotation speed of the segmented screw extruder. When the raw materials in the compression zone are completely dissolved, the dissolved raw materials are sent to the homogenization zone through the transmission system; Homogenization system: The homogenization zone is continuously heated and pressurized to make the raw materials reach uniform temperature and viscosity, and then they are extruded through the fine nozzle of the segmented screw extruder to form a ribbon embryo. The high-temperature and high-pressure ribbon embryo is quickly cooled through the No. 1 cooling system to solidify and form.

8. A strapping tape manufacturing system according to claim 6, characterized in that: The stretching system comprises: No. 2 preheating system: After the No. 2 preheating system preliminarily softens the strapping tape, it is sent to the main stretching area through the transmission system; Stretching roller system: The stretching system stretches the strapping tape through the stretching roller according to the preset stretching ratio; Built-in heating system in the stretching system: The heating system in the main stretching system heats the strapping tape to a preset temperature during the stretching process, so that the strapping tape forms a stable and high-strength structure; No. 2 Cooling System: The strapping tape after stretching and heating is quickly cooled by the No. 2 cooling system to fix the shape and size of the strapping tape.

9. A strapping tape manufacturing system according to claim 6, characterized in that: The embossing system comprises: Embossing roller system: The strapping tape enters the embossing area of ​​the embossing system through the transmission system, and the embossing roller embosses the pattern on the surface of the strapping tape under the set pressure; No. 3 cooling system: The embossed strapping tape is immediately sent to the No. 3 cooling system through the transmission system to cool and solidify the surface pattern.

10. A strapping tape manufacturing system according to claim 6, characterized in that: The winding system comprises: Fixing system: The strapping tape that has been stretched, shaped and embossed is transferred to the winder through the conveying system and fixed on the winder rod through the fixing system; Guide system: The winding machine starts, the winding rod starts to rotate, and the strapping tape is wound on the winding rod. At the same time, the guide system ensures that the strapping tape is evenly distributed during the winding process. Cutting system: When the strapping tape wound on the winding rod reaches the set length, the winding machine stops to form a strapping tape roll, and the strapping tape roll is cut by automatic cutting equipment, and finally the cut strapping tape roll is packaged.

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