A web handling unit, a thermoplastic prepreg slitting machine and an operating system

Abstract

The utility model discloses a kind of coiled material processing unit, thermoplastic prepreg slitting machine and operating system, coiled material processing unit includes: gas expansion shaft, first guide roller, fixed plate, linear module, screw servo module, material blocking disc assembly;Linear module is used to set on the equipment frame of slitting machine, screw servo module is set on linear module;Fixed plate is set on screw servo module;Gas expansion shaft and first guide roller are set on fixed plate, material blocking disc assembly is set on gas expansion shaft;Material blocking disc assembly includes two material blocking discs and two locking devices, two material blocking discs are respectively set on gas expansion shaft, and are locked respectively by two locking devices;Linear module is used to drive screw servo module to move, screw servo module is used to drive gas expansion shaft and first guide roller synchronous movement by fixed plate.The coiled material processing unit can quickly adjust prepreg position, so as to meet the requirement of automatic deviation correction range, improve the accuracy and reliability of slitting.

Description

Technical Field

[0001] This utility model relates to the field of prepreg slitting machine technology, and in particular to a roll processing unit, a thermoplastic prepreg slitting machine and an operating system. Background Technology

[0002] Thermoplastic prepregs are semi-finished materials used for composite material molding, formed by impregnating thermoplastic resins with reinforcing fibers through a specific process. They are characterized by softening and flowing upon heating to a certain temperature, and solidifying upon cooling, allowing them to be molded into various shapes using molding processes such as compression molding and automated fiber placement. Furthermore, they can be re-softened and reprocessed upon reheating during subsequent use, making them recyclable. Thermoplastic prepregs possess excellent mechanical properties, chemical resistance, and impact resistance, and are widely used in aerospace, automotive, and electronics industries.

[0003] In practical applications, different products have different requirements for the size and shape of thermoplastic prepregs. Prepreg slitting involves cutting wide prepregs into narrow strips of different standard specifications and requirements, making them adaptable to the production dimensions of various parts, improving material utilization, and reducing waste. At the same time, the slitting process facilitates handling, lay-up, and molding operations in subsequent processing.

[0004] The structure and working principle of current slitting machines are disclosed in existing patent documents such as those with authorization publication numbers CN217807644U, CN209113259U or application publication numbers CN111573387A, CN104973444A. Summary of the Invention

[0005] This utility model was developed to achieve rapid switching between winding and unwinding of prepreg, while solving the technical problems of prepreg deviation and compatibility of the baffle plate.

[0006] As one aspect of this utility model, an embodiment of this utility model provides a roll material processing unit, which may include: an air shaft, a first guide roller, a fixed plate, a linear module, a screw servo module, and a baffle assembly; the linear module is used to be mounted on the equipment frame of a thermoplastic prepreg slitting machine, the screw servo module is mounted on the linear module; the fixed plate is mounted on the screw servo module; the air shaft and the first guide roller are mounted on the fixed plate, and the baffle assembly is mounted on the air shaft; The baffle assembly includes two baffles and two locking devices. Each baffle includes a fixed frame, a rotating frame, and several blades. The fixed frame and the rotating frame are annular and have the same inner diameter. The fixed frame has several mounting holes in the circumferential direction and an opening on the side. The rotating frame has several sliding grooves. Each blade has protrusions on both sides that match the mounting holes and sliding grooves. Several blades and the rotating frame are installed in the fixed frame, and the rotating frame extends out of the opening. The rotating frame rotates to open and close the blades to fit onto the air shaft and lock them in place by the two locking devices. The linear module is used to drive the lead screw servo module to move, and the lead screw servo module is used to drive the air shaft and the first guide roller to move synchronously through the fixed plate.

[0007] In one embodiment, the roll processing unit may further include a magnetic powder brake disposed at the end of the air shaft.

[0008] In one embodiment, the roll material processing unit may further include: a support bushing, which is sleeved on the outside of the air shaft for supporting the paper core tube sleeved on the outside of the air shaft.

[0009] As another aspect of this utility model, an embodiment of this utility model provides a thermoplastic prepreg slitting machine, including a machine frame, and further including: a cutting assembly, a bidirectional switching transmission mechanism, and a first roll material processing unit, a second roll material processing unit, a first splicing platform assembly, a second splicing platform assembly, a first automatic correction device, and a second automatic correction device, respectively arranged symmetrically with respect to the cutting assembly. The first roll material processing unit and the second roll material processing unit are the roll material processing units described in one aspect of the above embodiments; the air shafts of the first roll material processing unit and the second roll material processing unit are connected by belts, and the bidirectional gears of the bidirectional switching transmission mechanism are respectively connected to the air shafts of the first roll material processing unit and the second roll material processing unit; the first guide roller of the first roll material processing unit is matched with the first splicing platform assembly, and the first guide roller of the second roll material processing unit is matched with the second splicing platform assembly; the first automatic correction device includes: a first position sensor and a first automatic servo correction device; the first position sensor is configured to align with the first splicing platform assembly; the first automatic servo correction device is configured on the lead screw servo module of the first roll material processing unit, and its output end is connected to the fixing plate of the first roll material processing unit; the second automatic correction device includes: a second position sensor and a second automatic servo correction device; the second position sensor is configured to align with the second splicing platform assembly; the second automatic servo correction device is configured on the lead screw servo module of the second roll material processing unit, and its output end is connected to the fixing plate of the second roll material processing unit.

[0010] In one embodiment, the bidirectional switching transmission mechanism may include: a servo motor, a gearbox, an electromagnetic clutch, a drive shaft, and a bidirectional gear; the servo motor is connected to the gearbox, the gearbox is connected to the drive shaft, the bidirectional gear is mounted on the drive shaft, and the bidirectional gear is connected to the air shafts of the first roll material processing unit and the second roll material processing unit respectively via the electromagnetic clutch.

[0011] In one embodiment, the cutting assembly may include: a cutting tool, a cutting groove, a cutting tool adjusting valve, and a plurality of second guide rollers; the cutting tool and the cutting groove are matched in position, the cutting tool adjusting valve is used to adjust the position of the cutting tool relative to the cutting groove, and the plurality of second guide rollers are located on both sides of the cutting groove for guiding the prepreg.

[0012] In one embodiment, the first splicing platform component may include: a first splicing platform, a first pneumatic device, and a first pressure bar; the first pneumatic device is connected to the first pressure bar, the first pressure bar is matched with the first splicing platform, and the first pressure bar fixes the prepreg on the first splicing platform under the control of the first pneumatic device; The second splicing platform assembly may include: a second splicing platform, a second pneumatic device, and a second pressure bar; the second pneumatic device is connected to the second pressure bar, the second pressure bar is matched with the second splicing platform, and the second pressure bar fixes the prepreg on the second splicing platform under the control of the second pneumatic device.

[0013] In one embodiment, the thermoplastic prepreg slitting machine may further include a handheld ultrasonic welding device for welding prepreg on the first splicing platform assembly or the second splicing platform assembly.

[0014] In one embodiment, the thermoplastic prepreg slitting machine may further include: multiple sets of take-up spool assemblies and multiple third guide rollers; wherein, the multiple sets of take-up spool assemblies are located on the same side of the first roll processing unit or the second roll processing unit; the multiple third guide rollers are located between the take-up spool assemblies and the first roll processing unit, or the multiple third guide rollers are located between the take-up spool assemblies and the second roll processing unit; Alternatively, some of the take-up spool assemblies are located on one side of the first roll material processing unit, and some of the take-up spool assemblies are located on one side of the second roll material processing unit, and are arranged symmetrically with the cutter assembly; some of the third guide rollers are located between the take-up spool assembly and the first roll material processing unit, and some of the third guide rollers are located between the take-up spool assembly and the second roll material processing unit.

[0015] As another aspect of this utility model, an embodiment of this utility model provides an operating system for a thermoplastic prepreg slitting machine, comprising: a controller and the aforementioned thermoplastic prepreg slitting machine; the controller is communicatively connected to the thermoplastic prepreg slitting machine and is used to set the working parameters of the thermoplastic prepreg slitting machine and regulate its working state; wherein, the working parameters include at least one of the following parameters: slitting parameters, power supply parameters, pressure roller parameters, speed parameters, and tension parameters.

[0016] The beneficial effects of the above-mentioned technical solutions provided by the embodiments of this utility model include at least the following: This utility model provides a roll material processing unit, a thermoplastic prepreg slitting machine, and an operating system. The roll material processing unit, as an independent module, allows the fixed plate to move in a straight line via a linear module, enabling rapid adjustment of the prepreg position. This meets the requirements of automatic correction range and improves the accuracy and reliability of slitting. On the other hand, by setting a baffle assembly on the air shaft, the spacing between the baffles can be quickly adjusted according to different prepreg widths, ensuring that the end face of the prepreg during winding / unwinding is flat and does not deviate.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0018] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the roll material processing unit provided in the embodiments of this utility model; Figure 2 This is a structural diagram of the baffle assembly provided in the embodiments of this utility model; Figure 3 This is a structural diagram of the baffle plate fixing frame provided in the embodiments of this utility model; Figure 4 This is a structural diagram of the rotating baffle provided in the embodiments of this utility model; Figure 5 This is a structural diagram of the baffle blade provided in the embodiment of this utility model; Figure 6 This is a schematic diagram of the thermoplastic prepreg slitting machine provided in the embodiments of this utility model (symmetrical wire feeding); Figure 7 This is a schematic diagram of the thermoplastic prepreg slitting machine (asymmetric wire feeding) provided in the embodiments of this utility model. Figure 8 This is a structural diagram of the thermoplastic prepreg slitting machine provided in the embodiments of this utility model; 11-Equipment frame; 12-Cutter assembly; 13-Two-way switching transmission mechanism; 14-First roll material processing unit; 15-Second roll material processing unit; 16-First splicing platform assembly; 17-Second splicing platform assembly; 18-First automatic deviation correction device; 19-Second automatic deviation correction device; 21-Handheld ultrasonic welding device; 22-Wire take-up spool assembly; 23-Third guide roller; 10 - Roll material handling unit; 101-Air shaft; 102-First guide roller; 103-Fixed plate; 104-Linear module; 105-Screw servo module; 106-Baffle assembly; 107-Magnetic powder brake; 108-Paper core tube; 1041-Drive motor; 1042-Linear slide rail; 1043-Slider; 1061-Baffle; 1062-Locking device; 10611-Fixed frame; 10612-Rotating frame; 10613-Blade; 106111-Mounting hole; 106112-Opening; 106121-Groove; 106131-Protrusion; 121-Cut tool; 122-Cut groove; 123-Cut tool adjusting valve; 124-Second guide roller; 161-First splicing platform; 162-First pressure bar; 171-Second splicing platform; 172-Second pressure bar; 181-First position sensor; 182-First automatic servo correction device; 191-Second position sensor; 192-Second automatic servo correction device. Detailed Implementation

[0020] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "far," "near," "front," and "rear," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] As a company primarily engaged in the manufacturing of chemical raw materials and chemical products, the applicant, based on production feedback during the research and development and use of prepreg slitting machines, believes that existing slitting machines suffer from problems such as rapid prepreg switching and prepreg deviation. Specifically, under the condition of a fixed cutter width, if the width of the prepreg masterbatch is greater than the cutter width, during prepreg slitting, some prepreg is slit. The slit prepreg filaments are wound up by the take-up reel, while the unslit prepreg is wound up by the take-up roller. The wound prepreg needs to be manually moved to the unwind roller position to become new masterbatch for further slitting, which prevents rapid switching and affects production efficiency. Furthermore, insufficient tightness of the cutter assembly during slitting, unstable traction of the pressure rollers, and tension fluctuations at the take-up and unwinding points cause prepreg deviation during take-up and unwinding, severely impacting the slitting effect and quality. Therefore, there is an urgent need to develop a new type of thermoplastic prepreg slitting machine to solve these problems.

[0024] The inventors attempted to study the problems of rapid prepreg switching and prepreg misalignment together, discovering that prepreg misalignment is closely related to the unwinding and take-up units, and that rapid prepreg switching is also closely related to the unwinding and take-up units. Through joint research, the inventors concluded that the root cause of these two problems is likely the same: improving the unwinding and take-up units. By jointly improving the unwinding and take-up units, the inventors were able to simultaneously solve both technical defects, ultimately resulting in this invention.

[0025] This embodiment of the invention provides a roll material processing unit. This roll material processing unit can serve as both the unwinding and rewinding unit of a slitting machine. In other words, it can simultaneously replace both the unwinding and rewinding units of the original slitting machine, achieving the inventor's combined improvement on the unwinding and rewinding units. (Refer to...) Figures 1-5As shown, the roll material processing unit 10 may include: an air shaft 101, a first guide roller 102, a fixed plate 103, a linear module 104, a screw servo module 105, and a baffle assembly 106; the linear module 104 is mounted on the equipment frame 11 of the thermoplastic prepreg slitting machine, and the screw servo module 105 is mounted on the linear module 104; the fixed plate 103 is mounted on the screw servo module 105; the air shaft 101 and the first guide roller 102 are mounted on the fixed plate 103, and the baffle assembly 106 is mounted on the air shaft 101; wherein, the baffle assembly 106 includes two baffles 1061 and two locking devices 1062, each baffle 1061 includes a fixed frame 10611, a rotating frame 10612, and several blades 10613, the fixed frame 10611 and the rotating frame 10612 are annular and have the same inner diameter; The fixed frame 10611 has several mounting holes 106111 around its circumference and openings 106112 on its side. The rotating frame 10612 has several sliding grooves 106121. Each blade 10613 has protrusions 106131 on both sides that match the mounting holes 106111 and sliding grooves 106121 respectively. Several blades 10613 and the rotating frame 10612 are installed in the fixed frame 10611, and the rotating frame 10612 extends out of the openings 106112. The rotation of the rotating frame 10612 causes the blades 10613 to open and close to fit onto the air shaft 101, and they are locked by two locking devices 1062 respectively. The linear module 104 is used to drive the lead screw servo module 105 to move. The lead screw servo module 105 is used to drive the air shaft 101 and the first guide roller 102 to move synchronously through the fixed plate 103.

[0026] In this embodiment, the air shaft 101 is used to support the paper core tube 108. Inflating the air shaft 101 with an air-inflating device increases its outer diameter, thus fixing the paper core tube 108 in the axial direction of the air shaft 101. After deflating the air shaft 101, the paper core tube 108 can be removed. In this embodiment, the first guide roller 102 guides the prepreg material away from or into the paper core tube 108 on the air shaft 101. It should be noted that the number of first guide rollers 102 in this embodiment can be one or more. The number and position of the first guide rollers 102 can be adjusted according to the actual wiring requirements. Furthermore, to solve the technical problem of prepreg material deviation, this embodiment requires the air shaft 101 and the first guide roller 102 to be mounted on the same fixed plate 103. This allows the air shaft 101 and the first guide roller 102 to move synchronously and quickly adjust the position of the prepreg material, and the position of the fixed plate 103 can be adjusted to meet the automatic correction range.

[0027] Reference Figures 2-5As shown, the aforementioned baffle 1061 is an iris-shaped opening and closing structure. The fixed frame 10611 has an opening 106112 at a certain angle for extending the rotating frame 10612 to allow it to slide freely. The rotating frame 10612 has a sliding groove 106121. The blades 10613 are placed sequentially on the fixed frame 10611, and the rotating frame 10612 is fitted onto the blades 10613. Opening and closing are achieved by rotating at a certain angle, forming the inner diameter of the baffle 1061. The opening and closing angle can be set according to different paper core tube 108 sizes to accommodate various paper core tube 108 sizes. The outer side of the iris-shaped opening and closing structure is connected to a concentric ring structure. The inner diameter of the concentric ring structure matches the outer diameter of the iris-shaped opening and closing structure. They can be used in a nested or fixed manner. The size of the concentric ring structure can be selected according to the prepreg winding diameter to meet diverse production needs. The locking device 1062 is located on the outside of the iris opening and closing structure fixing frame 10611. By tightening the knob, the baffle 1061 is fixed on the paper core tube 108. In this embodiment, the baffle is installed on the winding / unwinding paper core tube. The opening and closing angle of the iris opening and closing structure can be set according to different paper core tube sizes. The size of the concentric ring structure can be selected according to the winding diameter of the prepreg, which meets diverse production needs and ensures that the end face of the prepreg is flat and does not deviate.

[0028] Reference Figure 1 As shown, the linear module 104 may include components such as a drive motor 1041, a linear guide rail 1042, and a slider 1043. The lead screw servo module 105 includes a first fixed frame (lead screw servo module 105 fixed frame) and a connecting block. The lead screw servo module 105 is mounted on the first fixed frame, which is fixed to the slider 1043 of the linear module 104 via the connecting block. In this embodiment, the drive motor 1041 is electrically connected to the controller. The PLC controls the entire fixed plate 103 to move along the linear guide rail 1042, quickly adjusting the position of the prepreg to meet the adjustable range of automatic correction. In this embodiment, the baffle assembly 106 has a double baffle 1061 structure. The double baffle 1061 controls the winding and unwinding position of the prepreg on the paper core tube 108, ensuring that the end face of the prepreg is neat and does not deviate during winding. In this embodiment, the baffle plate 1061 is disc-shaped. The inner diameter of the baffle plate 1061 matches the outer diameter of the air shaft 101 or the paper core tube 108. A locking device 1062 is provided on the baffle plate 1061. After the baffle plate 1061 is installed on the air shaft 101 or the paper core tube 108, the baffle plate 1061 is locked by the locking device 1062. The baffle plate 1061 rotates as the air shaft 101 or the paper core tube 108 rotates. In this way, the prepreg is tightened onto the paper core tube 108 by the baffle plates 1061 on both sides.

[0029] The roll material processing unit provided in this embodiment of the present invention is an independent module. On the one hand, the fixed plate can be moved along a straight line by the linear module, which can quickly adjust the position of the prepreg, thus meeting the requirements of the automatic correction range and improving the accuracy and reliability of slitting. On the other hand, by setting a baffle plate assembly on the air expansion shaft, the spacing between the baffle plates can be quickly adjusted according to different prepreg widths to ensure that the end face of the prepreg during winding / unwinding is flat and does not deviate.

[0030] In one embodiment, refer to Figure 1 As shown, the aforementioned roll material processing unit 10 may further include a magnetic powder brake 107, which is disposed at the end of the air shaft 101. In this embodiment, the magnetic powder brake 107 is connected to the end of the air shaft 101, and the tension of the air shaft 101 is adjusted by controlling the current of the magnetic powder brake 107, thereby matching the winding and unwinding operations.

[0031] In one embodiment, the aforementioned roll material processing unit 10 may further include a support bushing (not shown in the figure), which is sleeved on the outside of the air expansion shaft 101 to support the paper core tube 108 sleeved on the outside of the air expansion shaft 101. In this embodiment, when the inner diameter of the paper core tube 108 does not match the diameter (outer diameter) of the air expansion shaft 101, a suitable support bushing needs to be sleeved on the air expansion shaft 101 first, and then the paper core tube 108 is sleeved on to ensure that the air expansion shaft 101 fits tightly with the paper core tube 108 after expansion. In this embodiment, the aforementioned support bushing plays a supporting role and can broaden the compatibility range between the paper core tube 108 and the air expansion shaft 101.

[0032] This utility model provides a thermoplastic prepreg slitting machine, referring to... Figures 6-8As shown, the slitting machine may include a machine frame 11, a cutter assembly 12 mounted on the machine frame 11, a bidirectional switching transmission mechanism 13, and a first roll material processing unit 14, a second roll material processing unit 15, a first splicing platform assembly 16, a second splicing platform assembly 17, a first automatic correction device 18, and a second automatic correction device 19, symmetrically arranged with respect to the cutter assembly. The first roll material processing unit 14 and the second roll material processing unit 15 are the aforementioned roll material processing unit 10. The air shafts 101 of the first roll material processing unit 14 and the second roll material processing unit 15 are connected by belts. The bidirectional gears of the bidirectional switching transmission mechanism are connected to the air shafts 101 of the first roll material processing unit 14 and the second roll material processing unit 15, respectively. The first guide roller 102 of the first roll material processing unit 14 is matched with the first splicing platform assembly 16, and the second roll material processing unit 15 is connected to the first splicing platform assembly 16. The first guide roller 102 of the processing unit 15 is matched with the second splicing platform assembly 17; the first automatic correction device 18 includes: a first position sensor 181 and a first automatic servo correction device 182; the first position sensor 181 is configured to align with the first splicing platform assembly 16; the first automatic servo correction device 182 is configured on the lead screw servo module 105 of the first roll material processing unit 14, and its output end is connected to the fixing plate 103 of the first roll material processing unit 14; the second automatic correction device 19 includes: a second position sensor 191 and a second automatic servo correction device 192; the second position sensor 191 is configured to align with the second splicing platform assembly 17; the second automatic servo correction device 192 is configured on the lead screw servo module 105 of the second roll material processing unit 15, and its output end is connected to the fixing plate 103 of the second roll material processing unit 15.

[0033] In this embodiment of the invention, when the first roll material processing unit 14 can be used as an unwinding unit, the second roll material processing unit 15 can be used as a winding unit; when the first roll material processing unit 14 is used as a winding unit, the second roll material processing unit 15 can be used as an unwinding unit. This embodiment uses the first roll material processing unit 14 as an unwinding unit and the second roll material processing unit 15 as a winding unit as an example for explanation. The thermoplastic prepreg slitting machine includes two sets of automatic correction devices. Each automatic correction device includes a position sensor and an automatic servo correction device. The position sensor is used to monitor the position deviation of the material (prepreg) edge or baseline in real time and feeds the monitoring data back to the controller. The controller calculates the correction amount according to the preset standard position, and the automatic servo correction device moves the corresponding displacement according to the instructions sent by the controller. In this embodiment, since both the automatic servo correction device and the lead screw servo module 105 are connected to the fixed plate 103, the displacement of the automatic servo correction device will drive the lead screw servo module 105 to move synchronously, thereby driving the air shaft 101 and the first guide roller 102 on the fixed plate 103 to move synchronously.

[0034] It should be noted that the above-mentioned equipment frame 11 serves as the frame that supports the various parts of the above-mentioned equipment. This thermoplastic prepreg slitting machine is similar to existing equipment. The power units such as motors (e.g., bidirectional switching transmission mechanism 13) are hidden at the rear of the entire equipment. Only the cutting assembly 12, the first roll processing unit 14 (e.g., unwinding unit), the second roll processing unit 15 (e.g., winding unit), the first splicing platform assembly 16, the second splicing platform assembly 17, the first position sensor 181 of the first automatic correction device 18, the second position sensor 191 of the second automatic correction device 19, the handheld ultrasonic welding device 21, the take-up spool assembly 22, and the third guide roller 23 are displayed on the operating platform or wire feeding platform.

[0035] In this embodiment, the thermoplastic prepreg slitting machine uses the cutting assembly as the axis of symmetry and adopts a symmetrical dual-station transmission unit (roll material processing unit 10) and a bidirectional switching transmission mechanism 13 to achieve quick switching between winding and unwinding prepreg, realizing bidirectional reuse of a single device, significantly improving production efficiency, enhancing equipment integration and flexibility. At the same time, the equipment has strong adaptability and flexibility, and can meet the slitting of prepregs of different specifications, satisfying diverse production needs.

[0036] Furthermore, the aforementioned slitting machine can quickly switch between winding and unwinding prepreg, while ensuring that the end face of the prepreg is flat during winding and unwinding, and that the splicing strength of the prepreg is high, thereby improving production efficiency and slitting quality.

[0037] In one embodiment, the bidirectional switching transmission mechanism is an existing transmission mechanism, which may include: a servo motor, a gearbox, an electromagnetic clutch, a transmission shaft, and a bidirectional gear; the servo motor is connected to the gearbox, the gearbox is connected to the transmission shaft, the bidirectional gear is mounted on the transmission shaft, and the bidirectional gear is connected to the air shaft 101 of the first roll material processing unit 14 and the second roll material processing unit 15 respectively through the electromagnetic clutch.

[0038] In this embodiment, the servo motor of the bidirectional switching transmission mechanism 13 is connected to the main drive shaft via a reduction gearbox. A bidirectional gear is mounted on the main drive shaft, and both sides are connected to the air shafts 101 of the first roll material processing unit 14 and the second roll material processing unit 15 via electromagnetic clutches (A / B). When electromagnetic clutch A is engaged and electromagnetic clutch B is disengaged, the servo motor rotates forward, driving the air shaft 101 of the first roll material processing unit 14 as the active shaft (winding), while the air shaft 101 of the second roll material processing unit 15 is passively rotated via a belt (unwinding). When the servo motor rotates in reverse, electromagnetic clutch B is engaged and electromagnetic clutch A is disengaged, making the air shaft 101 of the second roll material processing unit 15 the active shaft (winding), while the air shaft 101 of the first roll material processing unit 14 is passively rotated (unwinding). The control logic is that the forward and reverse rotation signals of the servo motor are linked to the on / off state of the electromagnetic clutches. For example, when the PLC sends a forward rotation command, electromagnetic clutch A is activated and electromagnetic clutch B is disengaged simultaneously; the reverse is true for reverse rotation, ensuring that the two air shafts 101 do not simultaneously act as active shafts.

[0039] In one embodiment, refer to Figure 6 and Figure 7 As shown, the above-mentioned cutting assembly 12 may include: a cutting tool 121, a cutting groove 122, a cutting tool adjusting valve 123, and a plurality of second guide rollers 124; the cutting tool 121 and the cutting groove 122 are matched in position, the cutting tool adjusting valve 123 is used to adjust the position of the cutting tool 121 relative to the cutting groove 122, and the plurality of second guide rollers 124 are located on both sides of the cutting groove 122 for guiding the prepreg.

[0040] In this embodiment, to ensure smooth slitting of carbon fiber, the positions of the cutter 121 and the cutter groove 122 need to be precisely adjusted. If the cutter is too shallow, the prepreg will not be cut properly, affecting the slitting quality; if the cutter is too deep, the cutter 121 and cutter groove 122 will wear excessively, shortening their service life and increasing the equipment's operating load, potentially causing equipment failure. If the cutter 121 is not aligned with the cutter groove 122, the carbon fiber will be slitting unevenly, resulting in burrs, tears, and other quality problems. In severe cases, it may even cause the cutter 121 to chip or damage other parts of the equipment. Therefore, the cutter 121 needs to be correctly adjusted. The axial and vertical movement of the cutter 121 is adjusted using the cutter adjustment valve 123. After the cutter 121 is adjusted, a trial run is required to observe the prepreg slitting effect and make fine adjustments as needed until the ideal slitting state is achieved. In this embodiment, the second guide roller 124 is used to guide the prepreg to the correct position, such as the splicing platform in subsequent processes.

[0041] In one embodiment, refer to Figure 6 and Figure 7As shown, the first splicing platform assembly 16 may include: a first splicing platform 161, a first pneumatic device (not shown in the figure), and a first pressure bar 162; the first pneumatic device is connected to the first pressure bar 162, the first pressure bar 162 is matched with the first splicing platform 161, and the first pressure bar 162 fixes the prepreg on the first splicing platform 161 under the control of the first pneumatic device; the second splicing platform assembly 17 may include: a second splicing platform 171, a second pneumatic device, and a second pressure bar 172; the second pneumatic device (not shown in the figure) is connected to the second pressure bar 172, the second pressure bar 172 is matched with the second splicing platform 171, and the second pressure bar 172 fixes the prepreg on the second splicing platform 171 under the control of the second pneumatic device.

[0042] In this embodiment, the splicing platform component is located between the automatic correction device and the cutter component 12. A pneumatic device and a pressure bar are installed above the splicing platform. After receiving the instruction from the controller, the pneumatic device controls the pressure bar to rise and fall, thereby fixing the prepreg on the splicing platform and facilitating the splicing of the prepreg.

[0043] In existing technologies, after prepreg is slit, it needs to be spliced ​​with new masterbatch to achieve further slitting. Currently, splicing is mostly done by fixing with tape, heating, and pressurizing, which has problems such as low efficiency and poor joint quality. To solve this technical problem, this embodiment improves upon it. In one embodiment, referring to... Figure 6 and Figure 7 As shown, the thermoplastic prepreg slitting machine may also include: a handheld ultrasonic welding device 21, which is used to weld the prepreg on the first splicing platform assembly 16 or the second splicing platform assembly 17.

[0044] In this embodiment, the handheld ultrasonic welding device 21 can be moved freely. Prepreg materials that need to be spliced ​​are overlapped together, with a PEEK film layer in between. A pressure bar is used to fix the prepreg materials to the splicing platform, and the handheld ultrasonic welding device 21 is used to weld the overlapped prepreg materials. After welding, the materials can be further processed into strips. This embodiment uses ultrasonic welding to splice the prepreg materials, avoiding the shortcomings of traditional methods such as tape fixing, heating, and pressurization. This improves the splicing strength, effectively prevents the prepreg materials from breaking at the splicing points, and enhances product quality.

[0045] In one embodiment, refer to Figure 6 and Figure 7As shown, the thermoplastic prepreg slitting machine may further include: multiple sets of take-up spool assemblies 22 and multiple third guide rollers 23; wherein, the multiple sets of take-up spool assemblies 22 are located on the same side of the first roll processing unit 14 or the second roll processing unit 15; the multiple third guide rollers 23 are located between the take-up spool assembly 22 and the first roll processing unit 14, or the multiple third guide rollers 23 are located between the take-up spool assembly 22 and the second roll processing unit 15; or, some take-up spool assemblies 22 are located on one side of the first roll processing unit 14, and some take-up spool assemblies 22 are located on one side of the second roll processing unit 15, and are symmetrically arranged with the cutter assembly 12; some third guide rollers 23 are located between the take-up spool assembly 22 and the first roll processing unit 14, and some third guide rollers 23 are located between the take-up spool assembly 22 and the second roll processing unit 15.

[0046] In this embodiment, the third guide roller 23 is used to divert and guide the slit prepreg yarn to the take-up reels. The upper take-up reel collects odd-numbered yarn bundles, and the lower take-up reel collects even-numbered yarn bundles. Take-up reels are installed on the upper and lower take-up shafts respectively and placed in the correct positions to ensure that the slit yarn bundles can enter the take-up reels at a certain angle. It should be noted that the third guide roller 23 in this embodiment may include a pneumatic pressure roller. The pneumatic pressure roller is connected to a cylinder, and its movement is controlled by a switch. When necessary, the pneumatic pressure roller can be activated to press down the prepreg yarn.

[0047] Based on the same inventive concept, this utility model embodiment also provides an operating system for a thermoplastic prepreg slitting machine. The operating system may include: a controller and the aforementioned thermoplastic prepreg slitting machine; the controller is communicatively connected to the thermoplastic prepreg slitting machine and is used to set the working parameters of the thermoplastic prepreg slitting machine and regulate its working state; wherein, the working parameters include at least one of the following parameters: slitting parameters, power parameters, pressure roller parameters, speed parameters, and tension parameters.

[0048] In this embodiment, the controller can be configured with multiple modules. By inputting working parameters into each module, functions such as adjusting slitting parameters, power control, pressure roller control, speed adjustment, and tension adjustment can be achieved. The controller is communicatively connected to the thermoplastic prepreg slitting machine to set the parameters of the slitting machine and control its working status.

[0049] The specific implementation and beneficial effects of the above-mentioned thermoplastic prepreg slitting machine operating system in this embodiment of the present invention can be referred to the relevant description of the above-mentioned thermoplastic prepreg slitting machine, and will not be repeated here.

[0050] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. This disclosure is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims. Thus, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model is also intended to include these modifications and variations.

Claims

1. A roll material processing unit, characterized in that, include: Air shaft, first guide roller, fixed plate, linear module, lead screw servo module, and stop plate assembly; The linear module is used to be installed on the equipment frame of the thermoplastic prepreg slitting machine, and the screw servo module is installed on the linear module; The fixing plate is mounted on the lead screw servo module; the air shaft and the first guide roller are mounted on the fixing plate, and the baffle assembly is mounted on the air shaft; The baffle assembly includes two baffles and two locking devices. Each baffle includes a fixed frame, a rotating frame, and several blades. The fixed frame and the rotating frame are annular and have the same inner diameter. The fixed frame has several mounting holes in the circumferential direction and an opening on the side. The rotating frame has several sliding grooves. Each blade has protrusions on both sides that match the mounting holes and sliding grooves. Several blades and the rotating frame are installed in the fixed frame, and the rotating frame extends out of the opening. The rotating frame rotates to open and close the blades to fit onto the air shaft and lock them in place by the two locking devices. The linear module is used to drive the lead screw servo module to move, and the lead screw servo module is used to drive the air shaft and the first guide roller to move synchronously through the fixed plate.

2. The roll material processing unit according to claim 1, characterized in that, Also includes: A magnetic powder brake, wherein the magnetic powder brake is disposed at the end of the air expansion shaft.

3. The roll material processing unit according to claim 1, characterized in that, Also includes: A support bushing is sleeved on the outside of the air expansion shaft to support the paper core tube sleeved on the outside of the air expansion shaft.

4. A thermoplastic prepreg slitting machine, comprising a frame, characterized in that, Also includes: The equipment frame is equipped with a cutter assembly, a bidirectional switching transmission mechanism, and a first roll material processing unit, a second roll material processing unit, a first splicing platform assembly, a second splicing platform assembly, a first automatic correction device, and a second automatic correction device, all symmetrically arranged with respect to the cutter assembly. The first roll material processing unit and the second roll material processing unit are roll material processing units as described in any one of claims 1 to 3; the air shafts of the first roll material processing unit and the second roll material processing unit are connected by belts, and the bidirectional gears of the bidirectional switching transmission mechanism are respectively connected to the air shafts of the first roll material processing unit and the second roll material processing unit; the first guide roller of the first roll material processing unit is matched with the first splicing platform assembly, and the first guide roller of the second roll material processing unit is matched with the second splicing platform assembly; the first automatic correction device includes: a first position sensor and a first automatic servo correction device; the first position sensor is configured to align with the first splicing platform assembly; the first automatic servo correction device is configured on the lead screw servo module of the first roll material processing unit, and its output end is connected to the fixing plate of the first roll material processing unit; the second automatic correction device includes: a second position sensor and a second automatic servo correction device; the second position sensor is configured to align with the second splicing platform assembly; the second automatic servo correction device is configured on the lead screw servo module of the second roll material processing unit, and its output end is connected to the fixing plate of the second roll material processing unit.

5. The thermoplastic prepreg slitting machine according to claim 4, characterized in that, The bidirectional switching transmission mechanism includes: a servo motor, a gearbox, an electromagnetic clutch, a transmission shaft, and a bidirectional gear; the servo motor is connected to the gearbox, the gearbox is connected to the transmission shaft, the bidirectional gear is mounted on the transmission shaft, and the bidirectional gear is connected to the air shafts of the first roll material processing unit and the second roll material processing unit respectively through the electromagnetic clutch.

6. The thermoplastic prepreg slitting machine according to claim 4, characterized in that, The cutting assembly includes: a cutting tool, a cutting groove, a cutting tool adjusting valve, and several second guide rollers; the cutting tool and the cutting groove are matched in position, the cutting tool adjusting valve is used to adjust the position of the cutting tool relative to the cutting groove, and several second guide rollers are located on both sides of the cutting groove to guide the prepreg.

7. The thermoplastic prepreg slitting machine according to claim 4, characterized in that, The first splicing platform component includes: a first splicing platform, a first pneumatic device, and a first pressure bar; the first pneumatic device is connected to the first pressure bar, the first pressure bar is matched with the first splicing platform, and the first pressure bar fixes the prepreg on the first splicing platform under the control of the first pneumatic device; The second splicing platform assembly includes: a second splicing platform, a second pneumatic device, and a second pressure bar; the second pneumatic device is connected to the second pressure bar, the second pressure bar is matched with the second splicing platform, and the second pressure bar fixes the prepreg on the second splicing platform under the control of the second pneumatic device.

8. The thermoplastic prepreg slitting machine according to any one of claims 4 to 7, characterized in that, The thermoplastic prepreg slitting machine further includes a handheld ultrasonic welding device, which is used to weld the prepreg on the first splicing platform assembly or the second splicing platform assembly.

9. The thermoplastic prepreg slitting machine according to any one of claims 4 to 7, characterized in that, The thermoplastic prepreg slitting machine further includes: multiple sets of take-up spool assemblies and multiple third guide rollers; wherein, the multiple sets of take-up spool assemblies are located on the same side of the first roll processing unit or the second roll processing unit; the multiple third guide rollers are located between the take-up spool assemblies and the first roll processing unit, or the multiple third guide rollers are located between the take-up spool assemblies and the second roll processing unit; Alternatively, some of the take-up spool assemblies are located on one side of the first roll material processing unit, and some of the take-up spool assemblies are located on one side of the second roll material processing unit, and are arranged symmetrically with the cutter assembly; some of the third guide rollers are located between the take-up spool assembly and the first roll material processing unit, and some of the third guide rollers are located between the take-up spool assembly and the second roll material processing unit.

10. An operating system for a thermoplastic prepreg slitting machine, characterized in that, include: The controller and the thermoplastic prepreg slitting machine as described in any one of claims 4 to 9; the controller is communicatively connected to the thermoplastic prepreg slitting machine and is used to set the working parameters of the thermoplastic prepreg slitting machine and regulate its working state; wherein the working parameters include at least one of the following parameters: slitting parameters, power supply parameters, pressure roller parameters, speed parameters, and tension parameters.

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