A crimping device for sandwich panel production with anti-warping function

Abstract

This invention discloses a crimping device for sandwich panel production with anti-warping function, relating to the technical field of crimping devices. The crimping device includes a feeding component, a guiding component, and a crimping component. The feeding component has a guiding component on its surface, which is used to correct the offset and detect the size of the metal sheet to be processed. A crimping component is provided on one side of the feeding component, and a driving component is provided on one side of the crimping component. An auxiliary pressing component is provided at the bottom of the crimping component, which is used to enhance the plasticity of the unpressed area in the metal sheet during the crimping process.

Description

Technical Field

[0001] This invention relates to the field of crimping equipment technology, specifically a crimping equipment for sandwich panel production with anti-warping function. Background Technology

[0002] Sandwich panels mainly consist of a front panel and a bottom panel, and sometimes also include an intermediate filling layer. The upper cylinder of the liquid reservoir is made of sandwich panels, and the front and bottom panels of these sandwich panels are made of metal sheets, such as galvanized steel sheets, stainless steel sheets, aluminum foil, etc.

[0003] During the rib-pressing process, certain areas of the sheet material need to be stretched and ribbed. For sheets with multiple ribs, the stretching area is even larger. If the stress is uneven, it can easily lead to sheet deformation, warping, or a reduction in overall strength. Furthermore, the hardness of unpressed areas can vary, severely affecting the overall product quality. Additionally, due to the wide variety of sandwich panels and the different sizes of the required metal sheets, the rib depths that fit different sizes of metal sheets also differ. Consequently, it is difficult to effectively adjust the rib-pressing process according to the different sizes of metal sheets, resulting in low rib-pressing accuracy and a low yield rate. Summary of the Invention

[0004] The purpose of this invention is to provide a crimping device for sandwich panel production with anti-warping function, so as to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A crimping device for sandwich panel production with anti-warping function is characterized in that: the crimping device includes a feeding component, a guiding component and a crimping component, the surface of the feeding component is provided with a guiding component, the guiding component is used to correct the offset and detect the size of the metal sheet to be processed, a crimping component is provided on one side of the feeding component, a driving component is provided on one side of the crimping component, and an auxiliary pressing component is provided at the bottom of the crimping component, the auxiliary pressing component is used to enhance the plasticity of the unpressed area in the metal sheet during the crimping process.

[0007] Furthermore, during the production of sandwich panels, the upper and lower metal sheets need to be ribbed to improve the overall rigidity and deformation resistance of the panels. However, during the ribbed process, some areas of the panels need to be stretched, especially panels with multiple ribs, which require even more stretching. This can lead to panel deformation or insufficient strength, as well as differences in hardness between uncompressed areas, thus affecting the overall product quality. Additionally, due to the wide variety of sandwich panel types, the required metal sheets will vary, necessitating adjustments for different sizes of metal sheets. The feeding assembly transports the metal sheets into the ribbed assembly, while the guiding assembly performs dimensional checks and positioning adjustments on the sheets during movement, ensuring they are aligned with the transport assembly on the same horizontal axis, thus improving the accuracy of the ribbed process. The ribbed assembly performs the ribbed process on the metal sheets, and the auxiliary pressing assembly adjusts the overall strength of the compressed areas to ensure uniform rigidity throughout the panels.

[0008] The feeding assembly includes a support column, a frame, and a conveyor roller. The support column is located on a horizontal bottom surface, the frame is located at the top of the support column, and the frame is fixedly connected to the top of the support column. The conveyor roller is installed inside the frame, and the two ends of the conveyor roller are rotatably connected to the inner wall of the frame.

[0009] Furthermore, the transport rollers are located at the bottom inside the frame, and there are multiple transport rollers, all of which are equidistantly arranged and rotatably connected to the bottom inside the frame, so that the metal sheet can move laterally through the transport rollers. The support column is located at the bottom of the frame and is used to support the frame to stand on the horizontal ground.

[0010] The guiding assembly includes a slider, a guide roller, and a top block. Slide grooves are provided on both sides of the inner wall of the frame. There are two sliders, each located in a slide groove and slidably connected to the slide groove. A guide roller is provided on one side of the slider, located on the side of the slider close to the inner wall of the frame, and rotatably connected to the slider. The top block is located on the side of the slider away from the guide roller and is fixedly connected to the outer wall of the frame. A coil is provided between the top block and the slider, and the bottom end of the coil is fixedly connected to the slider. A magnetic post is provided at the bottom end of the top block, and the magnetic post and the coil are on the same central axis.

[0011] Furthermore, the guide assembly is used to adjust the position of the sheet metal when the feeding assembly transports the sheet metal. During the transport of the sheet metal, the sheet metal moves on the transport roller. As the sheet metal moves, because the guide roller is located on the inner wall of the frame, both sides of the sheet metal will contact the bottom of the guide roller. With the continuous movement of the sheet metal, both sides of the sheet metal will continuously squeeze the bottom of the guide roller, causing the guide roller to move up and down. The upward movement of the guide roller will drive the slider to move, and the movement of the slider will drive the coil to move. Since the coil and the magnetic column are on the same central axis, when the coil moves upward, the coil will be wrapped around one end of the magnetic column, and the coil will generate an induced electromotive force, resulting in a change in voltage. The greater the voltage, the farther the slider moves upward, that is, the greater the compression of the sheet metal on the guide roller, and the larger the size of the sheet metal.

[0012] The guide roller is frustum-shaped, with grooves on its surface. An electrode plate is installed in the groove, and an elastic line made of copper is installed at the opening of the groove.

[0013] Furthermore, the device includes two guide rollers and two sliders. The guide rollers are frustum-shaped, consisting of an upper base, an inclined surface, and a lower base. The upper base is the smaller end of the circular cross-section, and the lower base is the larger end. The lower base of the guide roller is rotatably connected to the slider, while the upper base faces the slider. During operation, as the metal sheet moves, both ends of the metal sheet come into contact with the inclined surface of the guide rollers. If the metal sheet is offset at this time, the two guide rollers in contact with the metal sheet will have a height difference; that is, the two guide rollers are at different heights simultaneously. Based on the position of the metal sheet, the closer it is to one side, the farther the corresponding guide roller on that side is from the transport roller. Therefore, the pressure exerted by the lower guide roller on the metal sheet is less than that exerted by the higher guide roller. The guide roller is high, and during the movement, the metal sheet will slowly move to the side with the lower height. Eventually, the two guide rollers will be on the same horizontal line. At this time, the central axis of the metal sheet will be parallel to the central axis of the feeding assembly. This allows the guide roller to adjust the offset metal sheet during the movement. The elastic wire is electrically connected to an external power source. During the rotation of the guide roller, both ends of the metal sheet will contact the groove of the guide roller, and the metal sheet will compress the elastic wire. Because the elastic wire is made of copper, it has high ductility and is not easy to break. Therefore, it will bend into the groove under compression, so that the bent end of the elastic wire contacts the electrode plate. Then, the position where the elastic wire contacts the electrode plate will be energized. The position of contact between the metal sheet and the guide roller is determined by the position of energization.

[0014] The rib assembly includes a frame, a lower pressure roller group, and an upper pressure roller group. The frame is located on one side of the frame and is fixedly connected to the frame. The lower pressure roller group is located inside the frame and includes several lower pressure rollers. The lower pressure rollers are rotatably connected to the inner wall of the frame. The upper pressure roller group is located at the top of the lower pressure roller group and is located inside the frame. The upper pressure roller group is installed at equal intervals at an angle, and the lower pressure roller group is installed in an equally spaced arrangement.

[0015] Furthermore, a lower pressure roller assembly is provided at the bottom of the inner wall of the frame. This lower pressure roller assembly has several rollers arranged at equal intervals, while the upper pressure roller assembly has several rollers arranged at equal intervals and at an angle. The end closer to the feeding component is higher than the end farther from the feeding component, thus forming an angle between the upper and lower pressure roller assemblies. When the metal sheet enters the rib assembly, the upper pressure roller assemblies apply simple compression to the metal sheet due to this angle, preventing excessive compression of the sheet at the rib positions and thus avoiding overstretching. As the metal sheet moves further, the distance between the upper and lower pressure roller assemblies decreases, eventually forming the ribs within the sheet and preventing uneven hardness caused by rapid stretching of the ribs.

[0016] A drive motor is provided at the top of the frame. The fixed end of the drive motor is fixedly connected to the top of the frame. A connecting plate is provided at the output end of the drive motor. The upper pressure roller group includes several upper pressure rollers. The upper pressure rollers are rotatably connected to the connecting plate. The other side of the connecting plate is slidably connected to the inner wall of the frame.

[0017] Furthermore, there are four drive motors, located at the four corners of the top of the frame, and two connecting plates located on both sides of the upper pressure roller. The drive motors, as the power source, are mainly used to control the movement of the connecting plates. The movement of the connecting plates controls the tilt angle of the upper pressure roller group, thereby adjusting the pressing efficiency according to the metal sheet of different sizes.

[0018] The auxiliary pressure assembly includes a heating element, a support plate, and a connecting column. A connecting column is provided between the lower pressure rollers. The two ends of the connecting column are fixedly connected to the inner wall of the frame. A support plate is provided at the top of the connecting column. The support plate is fixedly connected to the connecting column. A cavity is opened in the support plate. The heating element is located in the cavity. The heating element is used to heat the unpressed area in the metal sheet.

[0019] Furthermore, the connecting column is located between the upper and lower pressure roller groups, and both ends of the connecting column are fixedly connected to the inner wall of the frame. The connecting column is fixedly connected to a support plate. When the metal sheet enters the pressing assembly, the support plate is located at the bottom end of the metal sheet. Then, the support plate is located at the unpressed surface of the metal sheet, that is, between the pressing molds of the upper and lower pressure roller groups. In the pressing process, the heating element works to improve the plasticity of the unpressed area, thereby making the stress distribution of the lower pressure roller on the metal sheet more uniform in the pressing process, and further reducing the deformation difference of the unpressed area.

[0020] An auxiliary pressure roller is provided at the top of the lower pressure roller group. The auxiliary pressure roller is located on the side of the upper pressure roller group away from the transport roller. Both ends of the auxiliary pressure roller are rotatably connected to the inner wall of the frame, and an auxiliary pressure sleeve is fitted on the auxiliary pressure roller.

[0021] Furthermore, the auxiliary pressure roller is located on the side of the upper pressure roller group away from the feeding component. When the pressing process is about to end, it squeezes the unpressed area in the metal sheet. Due to the principle of thermal expansion and contraction, the metal sheet is affected by the heat of the heating element and will expand outward slightly. The auxiliary pressure roller is then used to adjust the surface flatness of the metal sheet.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. In use, the present invention transports metal sheets via conveyor rollers. During the movement of the metal sheet, the guide rollers on the inner wall of its frame will contact both ends of the metal sheet. The two ends of the metal sheet will exert a pushing force on the guide rollers. If the metal sheet is in an offset state, the pushing force exerted on the corresponding guide roller by the offset end will also increase, resulting in the two guide rollers being at different heights. Furthermore, due to the weight of the guide rollers and the slider, pressure will be applied to the metal sheet. When the two guide rollers are at different heights, the applied pressure will also be different. In the subsequent transportation process, the higher guide roller will continuously apply pressure to the metal sheet, causing the metal sheet to move towards the lower guide roller side, eventually reaching the point where the two guide rollers are on the same horizontal line.

[0024] 2. In the process of moving the metal sheet, the two ends of the metal sheet will generate a pushing force on the guide roller, causing the guide roller to move upward. The upward movement of the guide roller will drive the slider to move, and the movement of the slider will drive the coil to move. The coil will be wrapped around one end of the magnetic column, and the coil will generate an induced electromotive force, resulting in a change in voltage value. When the two guide rollers are on the same horizontal line, the larger the voltage value, that is, the farther the guide roller moves, the higher the height of the metal sheet, and the larger the angle between the upper pressure roller group and the lower pressure roller group in the subsequent pressing process.

[0025] 3. During the movement of the metal sheet, the two ends of the metal sheet exert a pushing force on the guide roller, causing the two ends of the metal sheet to contact the grooves of the guide roller. This, in turn, causes the metal sheet to compress the elastic wire, making the bent end of the elastic wire contact the electrode plate. Consequently, the contact point between the elastic wire and the electrode plate is energized. The contact position between the metal sheet and the guide roller is determined based on the energized position. When the two guide rollers are on the same horizontal line, the closer the energized position is to the upper bottom surface of the guide roller, the shorter the width of the metal sheet. Conversely, the closer the energized position is to the lower bottom surface of the guide roller, the longer the width of the metal sheet. Furthermore, the length of the metal sheet can be determined by the frequency of energization of the electrode plate. Combined with the voltage value of the coil, the length, width, and height of the metal sheet can be indirectly obtained.

[0026] 4. In the pressing process of this invention, because the upper pressure roller group and the lower pressure roller group form an angle, the upper pressure roller will only perform simple extrusion on the metal sheet at the beginning. As the metal sheet moves a distance, the distance between the upper pressure roller group and the lower pressure roller group will become closer and closer, eventually forming the ribs in the sheet. This achieves slow forming of the ribs in the metal sheet, preventing uneven stress caused by rapid rib formation and reducing the probability of edge warping.

[0027] 5. In the pressing process, the heating element of this invention continuously heats the unpressed area, thereby improving the plasticity of the unpressed area. This makes the stress distribution of the lower roller on the metal sheet more uniform during the pressing process, further reducing the deformation difference of the unpressed area. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the upper pressure roller assembly of the present invention;

[0030] Figure 3 This is a schematic diagram of the structure of the driving component of the present invention;

[0031] Figure 4 This is a schematic diagram of the structure of the lower pressure roller assembly of the present invention;

[0032] Figure 5 This is a schematic diagram of the feeding assembly of the present invention;

[0033] Figure 6 For the present invention Figure 5 Enlarged view of part A in the middle section;

[0034] Figure 7 This is a schematic diagram of the structure of the guide roller of the present invention;

[0035] Figure 8 This is a schematic diagram of the auxiliary pressure roller of the present invention.

[0036] In the diagram: 1. Feeding assembly; 11. Support column; 12. Frame; 13. Transport roller; 2. Guide assembly; 21. Slider; 22. Guide roller; 221. Groove; 23. Top block; 24. Coil; 25. Magnetic column; 26. Elastic line; 27. Electrode plate; 3. Pressure rib assembly; 31. Frame; 32. Lower pressure roller group; 33. Upper pressure roller group; 4. Drive assembly; 41. Drive motor; 42. Connecting plate; 5. Auxiliary pressure assembly; 51. Heating element; 52. Support plate; 53. Connecting column; 54. Auxiliary pressure roller; 55. Auxiliary pressure sleeve. Detailed Implementation

[0037] 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.

[0038] Example: Figures 1-8 As shown, the present invention provides a technical solution for a crimping device for sandwich panel production with anti-warping function. The crimping device includes a feeding component 1, a guiding component 2, and a crimping component 3. The feeding component 1 is provided with a guiding component 2 on its surface. The guiding component 2 is used to correct the offset and detect the size of the metal sheet to be processed. The crimping component 3 is provided on one side of the feeding component 1, and a driving component 4 is provided on one side of the crimping component 3. An auxiliary pressing component 5 is provided at the bottom of the crimping component 3. The auxiliary pressing component 5 is used to enhance the plasticity of the unpressed area in the metal sheet during the crimping process.

[0039] Specifically, during the production of sandwich panels, the upper and lower metal sheets need to be ribbed to improve the overall rigidity and deformation resistance of the panels. However, during the ribbing process, some areas of the panels need to be stretched, especially panels with multiple ribs, which require even more stretching. This can lead to panel deformation, warping, or low overall strength, as well as differences in hardness between uncompressed areas, thus affecting the overall product quality. Furthermore, due to the wide variety of sandwich panel types, the required metal sheets will also vary, necessitating adjustments for different sizes of metal sheets. The feeding component 1 transports the metal sheets into the ribbing component 3, the guiding component 2 performs dimensional checks on the metal sheets during movement, and adjusts their positioning to ensure that the metal sheets and the transport components are on the same horizontal axis, improving the accuracy of the ribbing. The ribbing component 3 performs the ribbing process on the metal sheets, and the auxiliary pressing component 5 adjusts the overall strength of the compressed areas to ensure uniform overall rigidity of the panels.

[0040] like Figures 1-5 As shown, the feeding assembly 1 includes a support column 11, a frame 12 and a conveying roller 13. The support column 11 is located on a horizontal bottom surface, the frame 12 is located at the top of the support column 11, the frame 12 is fixedly connected to the top of the support column 11, and the conveying roller 13 is provided inside the frame 12. The two ends of the conveying roller 13 are rotatably connected to the inner wall of the frame 12.

[0041] Specifically, the transport roller 13 is located at the bottom inside the frame 12, and there are multiple transport rollers 13, all of which are arranged at equal intervals and are rotatably connected to the bottom inside the frame 12, so that the metal sheet can be moved laterally by the transport roller 13. The support column 11 is located at the bottom of the frame 12 and is used to support the frame 12 to stand on the horizontal ground.

[0042] like Figure 5 , Figure 6As shown, the guide assembly 2 includes a slider 21, a guide roller 22, and a top block 23. Slide grooves are respectively opened on both sides of the inner wall of the frame 12. Two sliders 21 are provided, each located within a slide groove and slidably connected to the slide groove. A guide roller 22 is provided on one side of the slider 21, located on the side of the slider 21 closest to the inner wall of the frame 12, and rotatably connected to the slider 21. The top block 23 is located on the side of the slider 21 away from the guide roller 22 and is fixedly connected to the outer wall of the frame 12. A coil 24 is provided between the top block 23 and the slider 21, with the bottom end of the coil 24 fixedly connected to the slider 21. A magnetic post 25 is provided at the bottom end of the top block 23, and the magnetic post 25 and the coil 24 are on the same central axis.

[0043] Specifically, the guide assembly 2 is used to adjust the position of the metal sheet when the feeding assembly 1 transports the metal sheet. During the transport of the metal sheet, the metal sheet moves on the transport roller 13. During the movement of the metal sheet, because the guide roller 22 is located on the inner wall of the frame 12, both sides of the metal sheet will contact the bottom end of the guide roller 22. With the continuous movement of the metal sheet, both sides of the metal sheet will continuously squeeze the bottom end of the guide roller 22, causing the guide roller 22 to move up and down. The upward movement of the guide roller 22 will drive the slider 21 to move, and the movement of the slider 21 will drive the coil 24 to move. Since the coil 24 and the magnetic column 25 are on the same central axis, ... As coil 24 moves upward, it wraps around one end of magnetic post 25. As coil 24 continues to move upward, one end of magnetic post 25 moves inside coil 24. The magnetic force of magnetic post 25 cuts the coil, which in turn induces an electromotive force in coil 24, causing a change in voltage. The larger the voltage of coil 24, the closer the distance between coil 24 and magnetic post 25, the greater the upward movement distance of guide roller 22, and the larger the height of the metal plate. Conversely, the smaller the voltage of coil 24, the farther the distance between coil 24 and magnetic post 25, the smaller the upward movement distance of guide roller 22, and the smaller the height of the metal plate.

[0044] like Figure 7 As shown, the guide roller 22 is frustum-shaped, and a groove 221 is provided on the surface of the guide roller 22. An electrode plate 27 is provided in the groove 221, and an elastic line 26 is provided at the opening of the groove 221. The elastic line 26 is made of copper.

[0045] Specifically, two guide rollers 22 and two sliders 21 are provided. The guide roller 22 is frustum-shaped, consisting of an upper base, an inclined surface, and a lower base. The upper base is the end with a smaller circular cross-section, and the lower base is the end with a larger circular cross-section. The lower base of the guide roller 22 is rotatably connected to the slider 21, while the upper base faces the slider 21. During the use of the device, as the metal plate moves, both ends of the metal plate will contact the inclined surface of the guide roller 22. If the metal plate is in an offset state at this time, the two guide rollers 22 in contact with the metal plate will have a height difference, that is, the two guide rollers 22 are at different heights at the same time. Taking the position of the metal plate as a reference, the closer to a certain side, the farther the height of the guide roller 22 on the corresponding side is from the transport roller 13. Then, the pressure exerted by the guide roller 22 with a lower height on the metal plate is less than that of the guide roller with a higher height. 22. During the movement, the metal sheet will slowly move towards the side with the lower height, and eventually the two guide rollers 22 will be on the same horizontal line. At this time, the central axis of the metal sheet will be parallel to the central axis of the feeding assembly 1, so that the guide rollers 22 can adjust the offset metal sheet during the movement. The elastic line 26 is electrically connected to the external power supply. During the rotation of the guide rollers 22, the two ends of the metal sheet will contact the groove 221 of the guide rollers 22, and the metal sheet will squeeze the elastic line 26. Since the elastic line 26 is made of copper, it has high ductility and is not easy to break. Therefore, it will bend into the groove 221 when squeezed, so that the bent end of the elastic line 26 contacts the electrode plate 27. Then, the position where the elastic line 26 contacts the electrode plate 27 will be energized. The position of contact between the metal sheet and the guide rollers 22 is determined according to the position of energization.

[0046] like Figures 1-3 As shown, the pressure rib assembly 3 includes a frame 31, a lower pressure roller group 32, and an upper pressure roller group 33. The frame 31 is located on one side of the frame 12 and is fixedly connected to the frame 12. The lower pressure roller group 32 is located inside the frame 31 and includes several lower pressure rollers. The lower pressure rollers are rotatably connected to the inner wall of the frame 31. The upper pressure roller group 33 is located at the top of the lower pressure roller group 32 and is located inside the frame 31. The upper pressure roller group 33 is installed at equal intervals at an angle, and the lower pressure roller group 32 is installed in an equidistant arrangement.

[0047] Specifically, a lower pressure roller group 32 is provided at the bottom of the inner wall of the frame 31. The lower pressure roller group 32 at the bottom has several lower pressure rollers arranged at equal intervals. The upper pressure roller group 33 has several upper pressure rollers, but they are installed at equal intervals at an angle. The end closer to the feeding component 1 is higher than the end farther away from the feeding component 1. As a result, the upper pressure roller group 33 and the lower pressure roller group 32 will form an angle. When the metal sheet enters the pressing rib component 3, because the upper pressure roller group 33 and the lower pressure roller group 32 will form an angle, the upper pressure roller will only perform simple compression on the metal sheet. Therefore, it will not cause high compression on the sheet at the rib position, thus preventing excessive stretching of the metal sheet. As the moving distance of the metal sheet increases, the distance between the upper pressure roller group 33 and the lower pressure roller group 32 will become closer and closer, eventually forming the ribs in the sheet. This avoids uneven hardness of the metal sheet caused by rapid stretching and forming of the ribs.

[0048] like Figures 1-3 As shown, a drive motor 41 is provided at the top of the frame 31. The fixed end of the drive motor 41 is fixedly connected to the top of the frame 31. A connecting plate 42 is provided at the output end of the drive motor 41. The upper pressure roller group 33 includes several upper pressure rollers. The upper pressure rollers are rotatably connected to the connecting plate 42. The other side of the connecting plate 42 is slidably connected to the inner wall of the frame 31.

[0049] Specifically, there are four drive motors 41, located at the four corners of the top of the frame 31, and two connecting plates 42 located on both sides of the upper pressure roller. The drive motors 41, as the power source, are mainly used to control the movement of the connecting plates 42. The movement of the connecting plates 42 controls the tilt angle of the upper pressure roller group 33, so as to adjust the pressing efficiency according to the metal sheet of different sizes.

[0050] like Figures 1-3 As shown, the auxiliary pressure assembly 5 includes a heating element 51, a support plate 52, and a connecting column 53. The connecting column 53 is provided between the lower pressure roller group 32. The two ends of the connecting column 53 are fixedly connected to the inner wall of the frame 31. The top of the connecting column 53 is provided with a support plate 52. The support plate 52 is fixedly connected to the connecting column 53. A cavity is opened in the support plate 52. The heating element 51 is located in the cavity. The heating element 51 is used to heat the unpressed area in the metal plate.

[0051] Specifically, the connecting column 53 is located between the upper pressure roller group 33 and the lower pressure roller group 32, and both ends of the connecting column 53 are fixedly connected to the inner wall of the frame 31. The connecting column 53 is fixedly connected to the support plate 52. When the metal sheet enters the pressing assembly 3, the support plate 52 is located at the bottom end of the metal sheet. Then, the support plate 52 is located at the unpressed surface of the metal sheet, that is, between the pressing mold of the upper pressure roller group 33 and the lower pressure roller group 32. In the pressing process, the heating element 51 works to improve the plasticity of the unpressed area, so that the stress distribution of the lower pressure roller on the metal sheet is more uniform in the pressing process, and further reduces the deformation difference of the unpressed area.

[0052] like Figures 1-3 , Figure 8 As shown, the lower pressure roller group 32 is provided with an auxiliary pressure roller 54 at the top. The auxiliary pressure roller 54 is located on the side of the upper pressure roller group 33 away from the transport roller 13. The two ends of the auxiliary pressure roller 54 are rotatably connected to the inner wall of the frame 31. An auxiliary pressure sleeve 55 is fitted on the auxiliary pressure roller 54.

[0053] Specifically, the auxiliary pressure roller 54 is located on the side of the upper pressure roller group 33 away from the feeding component 1. When the pressing process is about to end, it squeezes the unpressed area in the metal sheet. Due to the principle of thermal expansion and contraction, the metal sheet is affected by the heat of the heating element 51 and will expand outward a little. Then the auxiliary pressure roller 54 is used to adjust the surface flatness of the metal sheet.

[0054] Working principle: During use, the metal sheet is moved by the conveyor roller 13. As the metal sheet moves, both sides of the sheet contact the bottom of the guide roller 22. With the continuous movement of the metal sheet, the sides continuously press against the bottom of the guide roller 22, applying a pushing force. This causes the guide roller 22 to move upwards, which in turn moves the slider 21. The movement of the slider 21 then moves the coil 24. The coil 24 is wrapped around one end of the magnetic post 25, generating an induced electromotive force, resulting in a voltage change. The greater the voltage, the greater the upward movement of the slider 21. The farther away the metal sheet is, the greater the pressure exerted on the guide roller 22. The larger the size of the metal sheet, and the more truncated the shape of the guide roller 22 (which is frustum-shaped), the more the two ends of the metal sheet will contact the inclined surfaces of the guide roller 22. If the metal sheet is in an offset state at this time, a height difference will occur between the two guide rollers 22 in contact with the metal sheet. That is, the two guide rollers 22 will be at different heights simultaneously. The metal sheet will slowly move towards the side with the lower height, causing the central axis of the metal sheet to align with the central axis of the feeding assembly 1. The two ends of the metal sheet will then contact the grooves 221 of the guide roller 22. The metal sheet then compresses the elastic wire 26, causing the bent end of the elastic wire 26 to contact the electrode plate 27. This contact point between the elastic wire 26 and the electrode plate 27 becomes energized. The energized position determines the contact point between the metal sheet and the guide roller 22, enabling the detection of the metal sheet's dimensions and adjustment of its position during transport. Then, the metal sheet, pushed by the feeding assembly 1, enters the pressure rib assembly 3. Because the upper pressure roller group 33 is equidistantly and obliquely installed when the metal sheet enters the pressure rib assembly 3, the upper pressure roller group 33 will interact with the lower pressure roller group 32. The angle is formed. At the beginning, the upper pressure roller will only perform simple compression on the metal sheet, and will not cause high compression on the sheet at the rib position, thus avoiding excessive stretching of the metal sheet. As the metal sheet moves a distance, the distance between the upper pressure roller group 33 and the lower pressure roller group 32 will become closer and closer, eventually forming the ribs in the sheet. During this process, the heating element 51 works to improve the plasticity of the unpressed area, so that the stress distribution of the lower pressure roller on the metal sheet is more uniform in the rib forming process, further reducing the deformation difference in the unpressed area.

[0055] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A crimping device for sandwich panel production with anti-warping function, characterized in that: The rib-pressing device includes a feeding assembly (1), a guiding assembly (2), and a rib-pressing assembly (3). The feeding assembly (1) has a guiding assembly (2) on its surface. The guiding assembly (2) is used to correct the offset and detect the size of the metal sheet to be processed. The feeding assembly (1) has a rib-pressing assembly (3) on one side. The rib-pressing assembly (3) has a driving assembly (4) on one side. The rib-pressing assembly (3) has an auxiliary pressing assembly (5) at its bottom end. The auxiliary pressing assembly (5) is used to enhance the plasticity of the unpressed area in the metal sheet during the rib-pressing process. The feeding assembly (1) includes a support column (11), a frame (12) and a transport roller (13). The support column (11) is located on a horizontal bottom surface, and the frame (12) is located at the top of the support column (11). The frame (12) is fixedly connected to the top of the support column (11). The transport roller (13) is provided inside the frame (12), and the two ends of the transport roller (13) are rotatably connected to the inner wall of the frame (12). The guide assembly (2) includes a slider (21), a guide roller (22), and a top block (23). The inner walls of the frame (12) are respectively provided with grooves on both sides. There are two sliders (21), and the two sliders (21) are respectively located in the grooves. The sliders (21) are slidably connected to the grooves. A guide roller (22) is provided on one side of the slider (21). The guide roller (22) is located on the side of the slider (21) close to the inner wall of the frame (12). The guide roller (22) is rotatably connected to the slider (21). The top block (23) is located on the side of the slider (21) away from the guide roller (22). The top block (23) is fixedly connected to the outer wall of the frame (12). A coil (24) is provided between the top block (23) and the slider (21). The bottom end of the coil (24) is fixedly connected to the slider (21). A magnetic column (25) is provided at the bottom end of the top block (23). The magnetic column (25) and the coil (24) are on the same central axis. The guide roller (22) is frustum-shaped, and a groove (221) is provided on the surface of the guide roller (22). An electrode plate (27) is provided in the groove (221), and an elastic line (26) is provided at the opening of the groove (221). The elastic line (26) is made of copper.

2. The crimping equipment for sandwich panel production with anti-warping function according to claim 1, characterized in that: The rib assembly (3) includes a frame (31), a lower pressure roller group (32) and an upper pressure roller group (33). The frame (31) is located on one side of the frame (12) and is fixedly connected to the frame (12). The lower pressure roller group (32) is located inside the frame (31) and includes several lower pressure rollers. The lower pressure rollers are rotatably connected to the inner wall of the frame (31). The upper pressure roller group (33) is located at the top of the lower pressure roller group (32) and is located inside the frame (31). The upper pressure roller group (33) is installed at equal intervals at an angle, and the lower pressure roller group (32) is installed in an equidistant arrangement.

3. The crimping equipment for sandwich panel production with anti-warping function according to claim 2, characterized in that: The top of the frame (31) is provided with a drive motor (41), the fixed end of the drive motor (41) is fixedly connected to the top of the frame (31), the output end of the drive motor (41) is provided with a connecting plate (42), the upper pressure roller group (33) includes several upper pressure rollers, the upper pressure rollers are rotatably connected to the connecting plate (42), and the other side of the connecting plate (42) is slidably connected to the inner wall of the frame (31).

4. A crimping device for producing sandwich panels with anti-warping function according to claim 3, characterized in that: The auxiliary pressure assembly (5) includes a heating element (51), a support plate (52) and a connecting column (53). The connecting column (53) is provided between the lower pressure roller group (32). The two ends of the connecting column (53) are fixedly connected to the inner wall of the frame (31). The top of the connecting column (53) is provided with a support plate (52). The support plate (52) is fixedly connected to the connecting column (53). A cavity is opened in the support plate (52). The heating element (51) is located in the cavity. The heating element (51) is used to heat the unpressed area in the metal plate.

5. A crimping device for producing sandwich panels with anti-warping function according to claim 4, characterized in that: The lower pressure roller group (32) is provided with an auxiliary pressure roller (54) at the top. The auxiliary pressure roller (54) is located on the side of the upper pressure roller group (33) away from the transport roller (13). The two ends of the auxiliary pressure roller (54) are rotatably connected to the inner wall of the frame (31). An auxiliary pressure sleeve (55) is fitted on the auxiliary pressure roller (54).

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