A size-adjustable color-coated plate shearing machine and a shearing method

Abstract

The application discloses a size-adjustable color-coated plate shearing machine and a shearing method, and relates to the related technical field of cutting. The size-adjustable color-coated plate shearing machine comprises a main shaft rod which is fixed between two supports, a compression roller which is rotatably installed on the main shaft rod, an adjustable stamping mechanism which is installed on the compression roller, and support seats which are integrally formed with the main shaft rod at both ends of the main shaft rod. A cutting knife which is arranged in a U shape is slidably installed on the support seat, a stress roller is rotatably installed on the cutting knife, and the stress roller cooperates with the adjustable stamping mechanism. During a complete rotation movement process of the compression roller, an operator can flexibly adjust a stamping frequency according to actual production requirements, and single, double or four times of stamping operations can be realized. The mechanical adjustment mode is synchronous and coordinated with the rotation movement of the compression roller, and therefore, one, two or four times of accurate cutting operations can be correspondingly completed in a period of one rotation of the compression roller.

Description

Technical Field

[0001] This invention relates to the field of cutting-related technologies, specifically to a color-coated steel sheet shearing machine and shearing method with adjustable dimensions. Background Technology

[0002] Color-coated steel sheets are made from hot-dip galvanized steel sheets, hot-dip aluminum-zinc coated steel sheets, electro-galvanized steel sheets, etc., as substrates. After surface pretreatment (chemical degreasing and chemical conversion treatment), one or more layers of organic coating are applied to the surface, followed by baking and curing. They are named for the various colors of organic coating applied to the steel coils, and are often simply called color-coated coils. They are cut into color-coated sheets.

[0003] Color-coated steel sheets (rolls) usually need to be slit. A needle-punched cotton slitting device with adjustable cutting size has been disclosed in the inspection report (announcement number: CN222245095U). The cutting method of this device is to set up multiple cutting blades and achieve adjustable cutting by adjusting the distance between multiple blades. This method can cut multiple materials at the same time, which is not conducive to mobile operations.

[0004] Existing cutting equipment suitable for mobile operations typically includes a conveying mechanism and a cutting mechanism, which are controlled separately. Adjustable cutting is achieved by increasing or decreasing the material conveying to achieve different sizes, or by keeping the conveying constant while increasing or decreasing the cutting frequency to achieve different sizes.

[0005] The two methods described above have low coordination due to being controlled independently, and the debugging process is cumbersome. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a size-adjustable color-coated steel sheet shearing machine and shearing method, solving the problem of low coordination in individual control.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an adjustable-size color-coated steel sheet shearing machine, comprising a shearing table and two supports fixed to the shearing table, further comprising: a main shaft fixed between the two supports, a pressure roller rotatably mounted on the main shaft, an adjustable stamping mechanism mounted on the pressure roller, and integrally formed support seats at both ends of the main shaft; a U-shaped cutting blade slidably mounted on the support seats, a force-receiving roller rotatably mounted on the cutting blade, the force-receiving roller cooperating with the adjustable stamping mechanism; a compaction assembly mounted on both sides of the cutting blade for flattening the color-coated steel sheet; and a conveying assembly mounted on the shearing table and connected to the adjustable stamping mechanism, the conveying assembly for conveying the color-coated steel sheet along the length of the shearing table.

[0008] Furthermore, the adjustable stamping mechanism includes four circumferentially spaced receiving grooves on the pressure roller. A first, second, third, and fourth force-generating blocks are radially slidably installed in each of the four receiving grooves. The first, second, third, and fourth force-generating blocks are connected to adjustment components installed at both ends of the pressure roller, allowing the first, second, third, and fourth force-generating blocks to extend outwards. The pressure roller is connected to a drive component installed on the support base, and the drive component is also connected to the conveying component.

[0009] Furthermore, the adjustment assembly includes four lifting plates, which are respectively fixed to the bottom of the first, second, third, and fourth power blocks; four lead screws arranged in a cross pattern are rotatably mounted on both sides of the pressure roller, and the four lead screws are threadedly engaged with threaded sleeves fixed on the four lifting plates; a transmission ring is rotatably mounted on the side of the lead screw away from the first power block, and the transmission ring is provided with a first tooth, a second tooth, and a third tooth on the side facing the first power block, which engage with a second gear coaxially fixed on the four lead screws; a transmission rod is also rotatably mounted on the pressure roller, and a third gear is coaxially fixed at both ends of the transmission rod, which meshes with a second gear ring disposed inside the transmission ring.

[0010] Furthermore, the drive assembly includes a first gear rotatably mounted on the support base, the first gear meshing with a first gear ring disposed on the outer wall of the pressure roller; a motor is also fixed on the support base, the output shaft of the motor is connected to the shaft of the first gear through a first transmission chain, and the shaft of the first gear is connected to the conveying assembly.

[0011] Furthermore, the conveying assembly includes two feeding rollers rotatably mounted on the cutting table, and the two feeding rollers are connected by a gear set; support plates are mounted on opposite ends of the two brackets, and a partially engaged gear and a fourth gear are rotatably mounted on the support plates. The partially engaged gear is connected to the shaft of the first gear through a second transmission chain, and the fourth gear is connected to one of the feeding rollers through a third transmission chain.

[0012] Furthermore, multiple guide tubes are fixed on both sides of the cutting blade. The guide tubes pass through the support base and slide with it. A first spring is sleeved on the guide tube.

[0013] One end of the first spring is fixed to the support base, and the other end is fixed to the cutting blade.

[0014] Furthermore, the compaction assembly includes a guide rod axially slidably installed inside the guide tube, a pressure plate fixed to the bottom end of the guide rod, and a second spring sleeved on the guide rod, one end of the second spring being fixed to the pressure plate and the other end being fixed to the cutting blade.

[0015] Furthermore, a transmission plate is slidably mounted on each of the two supports, and the two transmission plates are fixed together by an adsorption plate. An electric push rod is fixed on each of the two supports, and the movable rod of the electric push rod is fixed to the transmission plate.

[0016] Furthermore, the transmission ratio between the toothed portion of the incomplete gear and the fourth gear is 1:1.

[0017] This invention also provides a method for shearing color-coated steel sheets with adjustable dimensions, using the aforementioned adjustable color-coated steel sheet shearing machine, including the following steps:

[0018] Step 1: Intermittently convey the color-coated steel sheets using a conveyor assembly;

[0019] Step 2: The adjustable stamping mechanism drives the cutting blade to descend, so as to cut the color-coated sheet.

[0020] Step 3: Adjust the stamping frequency by adjusting the adjustable stamping mechanism to adjust the cutting frequency.

[0021] The present invention has the following beneficial effects:

[0022] I. This adjustable color-coated steel sheet shearing machine, through its adjustable stamping mechanism design, allows operators to flexibly adjust the stamping frequency according to actual production needs during the complete rotation of the pressure roller, enabling single, double, or four stamping operations. This mechanical adjustment method is synchronized with the rotation of the pressure roller, thus allowing for one, two, or four precise cutting operations to be completed within each rotation cycle of the pressure roller.

[0023] Compared with the currently widely used CNC system for controlling the number of stampings, this mechanical adjustment scheme has several significant advantages: First, it eliminates the complex CNC parameter debugging process, making operation simple and intuitive; second, it has lower technical requirements for operators, greatly reducing the barrier to entry; third, due to its purely mechanical structure, the system operates more stably and reliably, effectively reducing the equipment failure rate; and finally, in terms of manufacturing costs, this mechanical adjustment mechanism has a significant price advantage compared to expensive CNC systems, which can significantly reduce equipment procurement costs.

[0024] II. This adjustable-size color-coated sheet shearing machine achieves equidistant conveying of color-coated sheets through a conveying assembly.

[0025] The conveying and adjustable stamping mechanism employs an innovative synchronous drive scheme to ensure a precise 1:4 speed ratio between the pressure roller and the feed roller;

[0026] Specifically, when the pressure roller completes one full rotation cycle, the feeding roller will correspondingly complete four full rotation cycles. The feeding roller will have a short pause after each rotation. This intermittent motion characteristic creates ideal working conditions for the subsequent cutting process.

[0027] When working in conjunction with an adjustable stamping mechanism, the cutting operation is optimized at three key time points: the first pause, the second pause, and the fourth pause, thereby ensuring cutting accuracy and efficiency.

[0028] Compared with traditional technical solutions, the innovations of this invention are mainly reflected in the following aspects: First, the cutting operation is entirely based on the intelligent adjustment function of the adjustable stamping mechanism; second, maintaining a fixed speed ratio between the pressure roller and the feeding roller brings significant operational advantages. In actual adjustment, the operator does not need to adjust the running speed of the conveying components or change the rotation speed of the pressure roller, which fundamentally eliminates the speed coordination problem common in traditional systems. This design not only simplifies the operation process but also greatly improves the stability and reliability of the system, providing a more precise and efficient solution for color-coated sheet processing.

[0029] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 for Figure 1 A structural diagram from another direction;

[0032] Figure 3 This is a schematic diagram of the electric push rod and transmission plate in this invention;

[0033] Figure 4 This is a schematic diagram of the adjustable stamping mechanism in this invention;

[0034] Figure 5 for Figure 4 Exploded view;

[0035] Figure 6 This is an exploded view of the adjustable stamping mechanism in this invention;

[0036] Figure 7 This is a perspective view of the pressure roller in this invention;

[0037] Figure 8This is a schematic diagram showing the interaction between the transmission ring and multiple No. 2 gears in this invention;

[0038] Figure 9 This is a schematic diagram of the conveying component in this invention;

[0039] Figure 10 for Figure 9 Enlarged view of the local structure at point A;

[0040] Figure 11 This is a schematic diagram of the compaction component in this invention;

[0041] Figure 12 This is a schematic diagram showing the positions of the first, second, and third teeth on the transmission ring in this invention.

[0042] In the diagram: 1. Cutting table; 2. Support frame; 3. Pressure roller; 301. Main shaft; 302. Cutting blade; 303. Spring No. 1; 304. Spring No. 2; 305. Pressure plate; 306. Motor; 307. Transmission chain No. 1; 308. Gear ring No. 1; 309. Gear No. 1; 3010. Guide tube; 3011. Guide rod; 3012. Force roller; 3013. Support base; 3014. Receiving groove; 3015. Force block No. 1; 3016. Force block No. 2; 3017. Force block No. 3; 3018. Force block No. 4; 3 019. Transmission ring; 3020. Lead screw; 3021. Lifting plate; 3022. Gear No. 2; 3023. Gear No. 3; 3024. Transmission rod; 3025. Gear No. 2; 3026. Gear No. 1; 3027. Gear No. 2; 3028. Gear No. 3; 4. Electric push rod; 401. Transmission plate; 402. Adsorption plate; 403. Conveying roller; 404. Conveying belt; 5. Feeding roller; 501. Gear set; 502. Transmission chain No. 2; 503. Incomplete gear; 504. Gear No. 4; 505. Transmission chain No. 3. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0045] The following is based on Figures 1-12 This invention describes a size-adjustable color-coated steel plate shearing machine provided in an embodiment of the present invention.

[0046] like Figures 1-12 As shown, this embodiment of the invention provides a color-coated steel plate shearing machine with adjustable size, a cutting table 1 and two supports 2 fixed on the cutting table 1, and a main shaft 301 fixed between the two supports 2. A pressure roller 3 is rotatably mounted on the main shaft 301, and an adjustable stamping mechanism is mounted on the pressure roller 3. Both ends of the main shaft 301 are provided with support seats 3013 integrally formed therewith.

[0047] A U-shaped cutting blade 302 is slidably mounted on the support base 3013. A force roller 3012 is rotatably mounted on the cutting blade 302. The force roller 3012 cooperates with the adjustable stamping mechanism.

[0048] The compaction assembly is installed on both sides of the cutting blade 302 and is used to flatten the color-coated sheet;

[0049] A conveying assembly is installed on the cutting table 1 and connected to the adjustable stamping mechanism. The conveying assembly is used to convey the color-coated sheet along the length of the cutting table 1.

[0050] In this embodiment of the invention, the color-coated sheet is intermittently conveyed by the conveying assembly, and during the intermittent period, the cutting blade 302 is driven to descend vertically to cut the conveyed color-coated sheet.

[0051] As the cutting blade 302 descends, it also drives the compaction component to work, pressing the color-coated sheet to ensure that the color-coated sheet is horizontal during cutting.

[0052] The adjustable stamping mechanism can adjust the cutting spacing without changing the equidistant conveying distance and conveying method of the color-coated sheet.

[0053] The adjustable stamping mechanism includes four accommodating grooves 3014 circumferentially spaced on the pressure roller 3. A first force-generating block 3015, a second force-generating block 3016, a third force-generating block 3017, and a fourth force-generating block 3018 are radially slidably installed in the four accommodating grooves 3014 respectively. The first force-generating block 3015, the second force-generating block 3016, the third force-generating block 3017, and the fourth force-generating block 3018 are connected to adjustment components installed at both ends of the pressure roller 3. The first force-generating block 3015, the second force-generating block 3016, the third force-generating block 3017, and the fourth force-generating block 3018 are adjusted to extend through the adjustment components.

[0054] The pressure roller 3 is connected to a drive assembly mounted on the support base 3013, and the drive assembly is also connected to the conveying assembly.

[0055] In this embodiment of the invention, the pressure roller 3 is driven to rotate by the driving component. When the pressure roller 3 rotates, the fourth force block 3018 or the fourth force block 3018 and the first force block 3015 or the first force block 3015, the second force block 3016, the third force block 3017, the fourth force block 3018 cooperate with the force roller 3012 to drive the cutting blade 302 to descend vertically and cut the color-coated plate.

[0056] These three coordination methods are adjusted using an adjustment component.

[0057] The adjustment assembly includes four lifting plates 3021, which are respectively fixed to the bottom of the first force block 3015, the second force block 3016, the third force block 3017, and the fourth force block 3018.

[0058] Four lead screws 3020 arranged in a cross pattern are rotatably mounted on both sides of the pressure roller 3. The four lead screws 3020 are respectively threadedly engaged with threaded sleeves fixed on the four lifting plates 3021.

[0059] A transmission ring 3019 is rotatably mounted on the side of the lead screw 3020 away from the first power block 3015. The transmission ring 3019 is provided with a first tooth 3026, a second tooth 3027, and a third tooth 3028 on the side facing the first power block 3015. The first tooth 3026, the second tooth 3027, and the third tooth 3028 cooperate with the second gear 3022, which is coaxially fixed on the four lead screws 3020.

[0060] In the initial state, tooth 3028 on transmission ring 3019 is located between 7 and 5 o'clock, tooth 3026 is located between 10 and 11 o'clock, and tooth 3027 is located between 12 and 1 o'clock. Furthermore, the tooth length of tooth 3028 is greater than that of tooth 3026 and tooth 3027. Figure 12 As shown.

[0061] A transmission rod 3024 is also rotatably mounted on the pressure roller 3. A No. 3 gear 3023 is coaxially fixed at both ends of the transmission rod 3024. The No. 3 gear 3023 meshes with the No. 2 gear ring 3025 located inside the transmission ring 3019.

[0062] In this embodiment of the invention, the transmission rod 3024 is driven to rotate by a specified tool (or by a motor). When the transmission rod 3024 rotates, the two transmission rings 3019 are driven to rotate synchronously by the meshing of the No. 3 gear 3023 at both ends with the two No. 2 gear rings 3025.

[0063] like Figure 8 As shown, for ease of description and understanding, the second gear 3022 corresponding to the fourth power block 3018 is named the first wheel, the second gear 3022 corresponding to the first power block 3015 is named the second wheel, and the gears corresponding to the second power block 3016 and the third power block 3017 are named the third wheel and the fourth wheel, respectively.

[0064] The transmission rod 3024 is manually driven to rotate by a specified tool. When the transmission rod 3024 rotates, the No. 3 gear 3023 at both ends meshes with the No. 2 gear ring 3025 on the two transmission rings 3019 to drive the two transmission rings 3019 to rotate synchronously.

[0065] When the transmission ring 3019 rotates, the corresponding lead screw 3020 is driven to rotate through the meshing of the third tooth 3028 with the first wheel. The lead screw 3020 drives the lifting plate 3021 to move along the axial direction of the lead screw 3020 by the threaded engagement of the threaded sleeve on the lifting plate 3021. When the lifting plate 3021 moves, the fourth force block 3018 is extended. After the third tooth 3028 is fully extended, the third tooth 3028 disengages from the first wheel. At the same time, the first tooth 3026 moves to the position to be engaged with the second wheel.

[0066] Continue to drive the transmission ring 3019 to rotate, and drive the second wheel to rotate through the meshing of the first tooth 3026 with the second wheel. When the second wheel rotates, it drives the corresponding lead screw 3020 to rotate. When the lead screw 3020 rotates, it drives the lifting plate 3021 to move along the axial direction of the lead screw 3020 through meshing with the threaded sleeve on the lifting plate 3021, thereby driving the first force block 3015 to extend.

[0067] During the second rotation, the first wheel is not driven, and after the first force block 3015 is fully extended, the first tooth 3026 disengages from the second wheel. At the same time, the third tooth 3028 and the second tooth 3027 move to the position to engage with the third and fourth wheels.

[0068] Continue to drive the transmission ring 3019 to rotate, and drive the third wheel and the fourth wheel to rotate synchronously through the third tooth 3028 and the second tooth 3027. When the third wheel and the fourth wheel rotate synchronously, they drive the corresponding lead screw 3020 to rotate, so that the lifting plate 3021 can be driven to move along the axial direction of the lead screw 3020 through the threaded engagement of the threaded sleeve on the lifting plate 3021. In turn, the second force block 3016 and the third force block 3017 are extended synchronously.

[0069] When the second tooth section 3027 and the third tooth section 3028 drive the third and fourth wheels, the first and second wheels are not driven.

[0070] The technical effect achieved by the above motion state is that by driving the transmission ring 3019 to rotate three times, the fourth force block 3018 is driven to extend, the first force block 3015 is driven to extend, and the second force block 3016 and the third force block 3017 are driven to extend synchronously.

[0071] When the fourth force block 3018 is extended, the pressure roller 3 rotates once to drive the cutting blade 302 to perform one punch. When the fourth force block 3018 and the first force block 3015 are extended, the pressure roller 3 rotates once to drive the cutting blade 302 to complete two punches. When the third force block 3017, the first force block 3015, the second force block 3016, and the fourth force block 3018 are all extended, the pressure roller 3 rotates once to drive the cutting blade 302 to complete four punches. This allows the pressure roller 3 to adjust the number of punches while rotating once, so that different lengths can be cut while maintaining the same conveying speed.

[0072] The drive assembly includes a first gear 309 rotatably mounted on the support 3013, and the first gear 309 meshes with a first gear ring 308 disposed on the outer wall of the pressure roller 3.

[0073] A motor 306 is also fixed on the support base 3013. The output shaft of the motor 306 is connected to the shaft of the first gear 309 through the first transmission chain 307. The shaft of the first gear 309 is connected to the conveying assembly.

[0074] In this embodiment of the invention, when the motor 306 is working, its output shaft drives the first gear 309 to rotate through the first transmission chain 307. When the first gear 309 rotates, it drives the pressure roller 3 to rotate through meshing with the first gear ring 308.

[0075] The present invention has two sets of the above-mentioned structure, which are respectively set on both sides of the pressure roller 3, so as to increase the torque and improve the driving stability. Of course, it is also possible to choose to set it on one side as appropriate.

[0076] The conveying assembly includes two feeding rollers 5 rotatably mounted on the cutting table 1, and the two feeding rollers 5 are connected by a gear set 501.

[0077] Each of the two brackets 2 has a support plate installed at one end opposite to the other. On the support plate, an incomplete gear 503 and a fourth gear 504 are rotatably mounted. The incomplete gear 503 is connected to the shaft of the first gear 309 through a second transmission chain 502. The fourth gear 504 is connected to one of the feeding rollers 5 through a third transmission chain 505.

[0078] In this embodiment of the invention, when the first gear 309 rotates, it drives the incomplete gear 503 to rotate through the second transmission chain 502. When the incomplete gear 503 rotates, it drives the fourth gear 504 to rotate through its toothed part. When the fourth gear 504 rotates, it drives one of the feeding rollers 5 to rotate through the third transmission chain 505. When one of the feeding rollers 5 rotates, it drives the other feeding roller 5 to rotate relative to it through the gear set 501.

[0079] The transmission ratio between the toothed part of the incomplete gear 503 and the fourth gear 504 is 1:1. Therefore, when the incomplete gear 503 rotates once, it will drive the fourth gear 504 to rotate once. There will be an interval before the incomplete gear 503 drives the fourth gear 504 to rotate once more. During this interval, the feeding roller 5 stops rotating, and the corresponding conveying of the color-coated plate stops. At the same time, since the driving force is on the first gear 309, the pressure roller 3 is still rotating during the interval, so as to use this interval to cut the color-coated plate.

[0080] It should be noted that the gear set 501 includes two meshing transmission gears, which are coaxially fixed on the two feeding rollers 5 respectively, so as to realize the relative rotation of the two feeding rollers 5 through the meshing of the two transmission gears.

[0081] It should also be noted that, for example, the distance conveyed by the feeding roller 5 rotating eight times is the length that the color-coated sheet needs to be cut, that is, the feeding roller 5 rotates eight times to cut once. This can be achieved by adjusting the first force block 3015, the second force block 3016, the third force block 3017, and the fourth force block 3018 to achieve the following: the feeding roller 5 rotates four times to cut once, and rotates two times to cut once. Of course, this description of the number of rotations is only for illustrative purposes and is not intended to limit the invention.

[0082] Multiple guide tubes 3010 are fixed on both sides of the cutting blade 302. The guide tubes 3010 pass through the support base 3013 and slide with it. A spring 303 is sleeved on the guide tube 3010.

[0083] One end of the first spring 303 is fixed to the support base 3013, and the other end is fixed to the cutting blade 302.

[0084] In this embodiment of the invention, when the cutting blade 302 is subjected to force and descends, it drives the guide tube 3010 to descend synchronously. At the same time, the first spring 303 is stretched so that the first spring 303 stores elastic potential energy. When the force on the cutting blade 302 disappears, the cutting blade 302 is driven to reset by releasing the elastic potential energy stored in the first spring 303.

[0085] The compaction assembly includes a guide rod 3011 axially slidably installed in the guide tube 3010. A pressure plate 305 is fixed to the bottom end of the guide rod 3011. A second spring 304 is sleeved on the guide rod 3011. One end of the second spring 304 is fixed to the pressure plate 305, and the other end is fixed to the cutting blade 302.

[0086] In this embodiment of the invention, in the initial state, the pressure plate 305 is at the bottom of the cutting edge of the cutting blade 302. When the cutting blade 302 descends, it simultaneously drives the guide rod 3011, the second spring 304, and the pressure plate 305 to descend. At this time, the second spring 304 is in an uncompressed state. As it descends, it first contacts the color-coated plate through the pressure plate 305, and as it descends, it compresses the second spring 304, allowing the second spring 304 to store elastic potential energy. The elastic potential energy of the second spring 304 is used to apply a pressing force to the pressure plate 305, so that the pressing force is transmitted to the color-coated plate through the pressure plate 305.

[0087] Its function is that when the cutting blade 302 descends, before the cutting edge of the cutting blade 302 contacts the color-coated plate, the two pressure plates 305 press down the color-coated plate located below the cutting edge of the cutting blade 302 to prevent bulging and unevenness, and the pressing action is located on both sides of the cutting blade 302.

[0088] A transmission plate 401 is slidably mounted on each of the two brackets 2. The two transmission plates 401 are fixed together by an adsorption plate 402. An electric push rod 4 is fixed on each of the two brackets 2. The movable rod of the electric push rod 4 is fixed to the transmission plate 401.

[0089] In this embodiment of the invention, a conveyor roller 403 is rotatably mounted at the end of the cutting table 1, and another conveyor roller 403 is rotatably mounted on the worktable of the next process. The two conveyor rollers 403 are connected by a conveyor belt 404.

[0090] After the color-coated sheet is cut, the cut color-coated sheet is attracted by the power supply of the adsorption plate 402. Then, the operation of the electric push rod 4 drives the transmission plate 401 to move toward the conveyor belt 404, thereby driving the adsorption plate 402 and the color-coated sheet to move onto the conveyor belt 404. The color-coated sheet is transported to the next part by the conveyor belt 404.

[0091] When in use (working), the motor 306 drives the gear 309 to rotate through the first transmission chain 307. When the gear 309 rotates, it drives the pressure roller 3 to rotate through the first gear ring 308. When the pressure roller 3 rotates, it drives the cutting blade 302 to descend vertically through the fourth force block 3018 or the fourth force block 3018 and the first force block 3015 or the first force block 3015, the second force block 3016, the third force block 3017, and the fourth force block 3018 to cut the color-coated sheet. The specific coordination method is described in detail in the "Adjustment Components" section above.

[0092] When gear 1 309 rotates, it also drives incomplete gear 503 to rotate through transmission chain 2 502. Then, through the cooperation of incomplete gear 503 and gear 4 504, gear 4 504 is driven to rotate. When gear 4 504 rotates, one of the feeding rollers 5 rotates through transmission chain 3 505. When one of the feeding rollers 5 rotates, the other feeding roller 5 is driven to rotate relative to it through gear set 501, so that the two feeding rollers 5 rotate relative to each other, and the color-coated plate is conveyed through the relative rotation of the two feeding rollers 5.

[0093] The cut color-coated sheet is adsorbed by the adsorption plate 402, and then the transmission plate 401 and the adsorption plate 402 are driven by the electric push rod 4 to transfer the color-coated sheet onto the conveyor belt 404, so that it can be transported to the next process by the conveyor belt 404.

[0094] This invention also provides a method for shearing color-coated steel sheets with adjustable dimensions, using the aforementioned adjustable color-coated steel sheet shearing machine, including the following steps:

[0095] Step 1: Intermittently convey the color-coated steel sheets using a conveyor assembly;

[0096] Step 2: The adjustable stamping mechanism drives the cutting blade 302 to descend, so as to cut the color-coated sheet through the cutting blade 302;

[0097] Step 3: Adjust the stamping frequency by adjusting the adjustable stamping mechanism to adjust the cutting frequency.

[0098] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0099] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A size-adjustable color-coated steel sheet shearing machine, comprising a cutting table (1) and two supports (2) fixed on the cutting table (1), characterized in that, Also includes: The main shaft (301) is fixed between two supports (2). A pressure roller (3) is rotatably mounted on the main shaft (301). An adjustable stamping mechanism is mounted on the pressure roller (3). Support seats (3013) integrally formed with the main shaft (301) are provided at both ends of the main shaft (301). A U-shaped cutting blade (302) is slidably mounted on the support base (3013), and a force roller (3012) is rotatably mounted on the cutting blade (302). The force roller (3012) cooperates with the adjustable stamping mechanism. The compaction assembly is installed on both sides of the cutting blade (302) and is used to flatten the color-coated sheet; A conveying assembly is installed on the cutting table (1) and connected to the adjustable stamping mechanism. The conveying assembly is used to convey the color-coated plate along the length of the cutting table (1). The adjustable stamping mechanism includes four accommodating slots (3014) circumferentially equidistantly opened on the pressure roller (3). A first power block (3015), a second power block (3016), a third power block (3017), and a fourth power block (3018) are radially slidably installed in the four accommodating slots (3014). The first power block (3015), the second power block (3016), the third power block (3017), and the fourth power block (3018) are connected to the adjustment components installed at both ends of the pressure roller (3). The adjustment components adjust the extension of the first power block (3015), the second power block (3016), the third power block (3017), and the fourth power block (3018). The pressure roller (3) is connected to a drive assembly mounted on the support base (3013), and the drive assembly is also connected to the conveying assembly; The adjustment assembly includes four lifting plates (3021), which are respectively fixed to the bottom of the first force-generating block (3015), the second force-generating block (3016), the third force-generating block (3017), and the fourth force-generating block (3018); The pressure roller (3) has four lead screws (3020) arranged in a cross pattern mounted on both sides. The four lead screws (3020) are respectively threaded into threaded sleeves fixed on the four lifting plates (3021). A transmission ring (3019) is rotatably mounted on the side of the lead screw (3020) away from the first power block (3015). The transmission ring (3019) is provided with a first tooth (3026), a second tooth (3027), and a third tooth (3028) on the side facing the first power block (3015). The first tooth (3026), the second tooth (3027), and the third tooth (3028) cooperate with the second gear (3022) which is coaxially fixed on the four lead screws (3020). A transmission rod (3024) is rotatably mounted on the pressure roller (3). A No. 3 gear (3023) is coaxially fixed at both ends of the transmission rod (3024). The No. 3 gear (3023) meshes with the No. 2 gear ring (3025) located inside the transmission ring (3019).

2. The adjustable-size color-coated steel sheet shearing machine according to claim 1, characterized in that, The drive assembly includes a first gear (309) rotatably mounted on the support base (3013), and the first gear (309) meshes with a first gear ring (308) disposed on the outer wall of the pressure roller (3); A motor (306) is also fixed on the support base (3013). The output shaft of the motor (306) is connected to the shaft of the first gear (309) through the first transmission chain (307). The shaft of the first gear (309) is connected to the conveying assembly.

3. The adjustable-size color-coated steel sheet shearing machine according to claim 2, characterized in that, The conveying assembly includes two feeding rollers (5) rotatably mounted on the cutting table (1), and the two feeding rollers (5) are connected by a gear set (501); Two brackets (2) are each equipped with a support plate at one end. The support plate is rotatably mounted with a partially engaged gear (503) and a fourth gear (504). The partially engaged gear (503) is connected to the shaft of the first gear (309) via a second transmission chain (502). The fourth gear (504) is connected to one of the feeding rollers (5) via a third transmission chain (505).

4. The adjustable-size color-coated steel sheet shearing machine according to claim 1, characterized in that, Multiple guide tubes (3010) are fixed on both sides of the cutting blade (302). The guide tubes (3010) pass through the support base (3013) and slide with it. A first spring (303) is sleeved on the guide tube (3010). One end of the first spring (303) is fixed to the support base (3013), and the other end is fixed to the cutting blade (302).

5. The adjustable-size color-coated steel sheet shearing machine according to claim 4, characterized in that, The compaction assembly includes a guide rod (3011) axially slidably installed in the guide tube (3010). A pressure plate (305) is fixed at the bottom end of the guide rod (3011). A second spring (304) is sleeved on the guide rod (3011). One end of the second spring (304) is fixed to the pressure plate (305), and the other end is fixed to the cutting blade (302).

6. The adjustable-size color-coated steel sheet shearing machine according to claim 1, characterized in that, A transmission plate (401) is slidably mounted on each of the two brackets (2). The two transmission plates (401) are fixed together by an adsorption plate (402). An electric push rod (4) is fixed on each of the two brackets (2). The movable rod of the electric push rod (4) is fixed to the transmission plate (401).

7. The adjustable-size color-coated steel sheet shearing machine according to claim 3, characterized in that, The transmission ratio between the toothed portion of the incomplete gear (503) and the fourth gear (504) is 1:

1.

8. A method for shearing color-coated steel sheets with adjustable dimensions, using a color-coated steel sheet shearing machine with adjustable dimensions as described in any one of claims 1-7, characterized in that... Includes the following steps: Step 1: Intermittently convey the color-coated steel sheets using a conveyor assembly; Step 2: Drive the cutting blade (302) down through the adjustable stamping mechanism to cut the color-coated sheet through the cutting blade (302); Step 3: Adjust the stamping frequency by adjusting the adjustable stamping mechanism to adjust the cutting frequency.

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