plasterboard cutting device

Abstract

This application discloses a gypsum board cutting device, relating to the technical field of building material processing equipment. Its key technical features include: a bottom support platform with a horizontal beam positioned above it, one side of which is connected to a height adjustment unit; a cutting blade assembly positioned above the horizontal beam, with its lower end connected to a moving component; the cutting blade assembly includes two cutting blades symmetrically arranged along the length of the horizontal beam, a grinding blade at one end of the middle region of the two cutting blades, and the two cutting blades respectively mounted on the two side walls of the grinding blade in the width direction. Both ends of the grinding blade in the length direction have cutting edges, and the upper and lower sides of the grinding blade body are coarsely sanded surfaces. This cutting blade assembly can complete the scoring, cutting, and sanding of gypsum board in one operation, making it not only more convenient and faster than existing technologies but also saving time and effort.

Description

Technical Field

[0001] This application relates to the field of building material processing equipment technology, and in particular to a gypsum board cutting device. Background Technology

[0002] Gypsum board is a material made primarily from building gypsum. It is a lightweight, high-strength, thin, and easy-to-process building material with good sound insulation, heat insulation, and fire resistance properties, making it one of the new lightweight building materials currently under development. Gypsum board is widely used in various buildings such as residences, office buildings, shops, hotels, and industrial plants for interior partitions, wall cladding (replacing plaster), ceilings, sound-absorbing panels, floor baseboards, and various decorative panels. The standard size of commonly used decorative gypsum board is typically 1.2m × 2.4m, with a thickness of approximately 9.5mm.

[0003] The existing gypsum board cutting process generally includes the following steps: 1. Measurement and Marking: First, use a ruler and pencil to locate and mark the cutting positions on the gypsum board. 2. Fixing the Gypsum Board: Before cutting, the gypsum board needs to be securely fixed on the workbench to ensure the accuracy of the cut. 3. Cutting: Use a cutting tool to cut the gypsum board along the marked lines. Current cutting tools are mostly marble cutters or manual cutting by hand. Regardless of the method, the cutting depth does not penetrate the entire gypsum board; instead, a shallow groove is cut into the surface. Cutting too deep would easily affect the back surface structure. Generally, after cutting the front, the back is also cut. After both sides are cut, the worker can simply pry the gypsum board apart by hand from the cut seam. 4. Grinding: The cut areas of the gypsum board need to be sanded and smoothed with sandpaper or a grinder to make the surface smoother.

[0004] Because workers need to make a cut on both sides of the plasterboard when cutting along the marked lines, and then break the plasterboard apart from the cut, and then manually grind the cut edges of the plasterboard after cutting, the operation is not only tedious but also time-consuming and labor-intensive, especially when working on large-area buildings with a large amount of plasterboard, which greatly reduces the work speed. Summary of the Invention

[0005] This application provides a gypsum board cutting device, which can effectively solve the problems of cumbersome operation procedures, time and labor costs, and reduced work efficiency in the prior art when workers cut gypsum boards.

[0006] The above-mentioned objective of this application is achieved through the following technical solution:

[0007] A gypsum board cutting device includes a bottom support platform, a horizontal beam above the bottom support platform, one side of the horizontal beam being connected to a height adjustment unit, the height adjustment unit being able to adjust the vertical position of the horizontal beam; a cutting blade assembly above the horizontal beam, the lower end of the cutting blade assembly being connected to a moving component, the moving component being able to drive the cutting blade assembly to move along the length direction of the horizontal beam; the cutting blade assembly includes two cutting blades symmetrically arranged along the length direction of the horizontal beam, the adjacent sides of the two cutting blades being both cutting edges, the minimum distance between the two cutting blades being less than the thickness of the gypsum board, a grinding scraper being provided at one end of the middle area of ​​the two cutting blades, and the two cutting blades being respectively mounted on the two side walls of the grinding scraper in the width direction, both ends of the grinding scraper in the length direction being provided with cutting edges, and the upper and lower sides of the grinding scraper blade body being coarsely frosted surfaces.

[0008] Furthermore, the two cutting blades are arranged at an included angle, and the distance between the two cutting blades near the end of the grinding blade is less than the distance between the other ends of the two cutting blades.

[0009] Furthermore, each of the two cutting blades is fixedly connected to a handle near one end of the grinding blade. The two handles are respectively hinged to the two side walls of the grinding blade in the width direction via a bracket on one side close to each other. Each handle is fixedly connected to a mounting plate on the lower side of the bracket at the corresponding position. The two mounting plates are fixedly connected by a first spring. When the first spring deforms, the elastic force generated can drive the handle to rotate around the hinge point between it and the bracket.

[0010] Furthermore, the overall width of the polishing scraper is greater than the maximum thickness of the gypsum board.

[0011] Furthermore, the height adjustment unit includes a horizontally arranged U-shaped lifting frame, the open end of the U-shaped lifting frame facing the horizontally placed beam, and the lower side of the open end of the U-shaped lifting frame being fixedly connected to both ends of the horizontally placed beam; the lower side of the middle position of the closed end of the U-shaped lifting frame is fixedly connected to the output end of the hydraulic cylinder, and the other end of the hydraulic cylinder is fixedly connected to the bottom support platform.

[0012] Furthermore, two guide rods are provided through the closed end of the U-shaped lifting frame, and the U-shaped lifting frame can move up and down along the two guide rods, and the axes of the two guide rods are symmetrical about the axis of the hydraulic cylinder; the lower ends of the two guide rods are fixedly connected to the bottom support platform.

[0013] Furthermore, both ends of the horizontally placed beam are fixedly connected to the open end of the U-shaped lifting frame by a second spring.

[0014] Furthermore, the horizontally placed beam is provided with two adjusting columns on the side near the U-shaped lifting frame. The lower end of the adjusting column is fixedly connected to the bottom support platform. Multiple adjusting holes are evenly provided along the axial direction on the column body. A clamping frame is fixedly connected to one of the adjusting holes by bolts and nuts. A circular clamping plate is provided on the inner side of the clamping frame away from the adjusting column. The side of the circular clamping plate away from the adjusting column is fixedly connected to one end of a threaded knob. The other end of the threaded knob passes through the clamping frame away from the adjusting column and the two are threadedly connected.

[0015] Furthermore, the moving component includes a guide groove located below the horizontally placed beam. An adjusting threaded rod is provided within the guide groove. Both ends of the adjusting threaded rod are rotatably connected to both ends of the guide groove along its length. One end of the adjusting threaded rod passes through the corresponding end of the guide groove and is fixedly connected to the output end of a drive motor. The housing of the drive motor is mounted on the bottom support platform. A slider with the same width as the guide groove is fitted onto the adjusting threaded rod, and the two are threaded together. Two support rods are provided above the slider. The upper ends of the two support rods are fixedly connected to the lower sides of the two brackets, and the lower ends of both support rods are fixedly connected to the slider. The distance between the two support rods is greater than the thickness of the gypsum board.

[0016] Furthermore, a dust collection port is provided above the side of the guide groove away from the adjusting column. The lower side of the dust collection port is fixedly connected to the bottom support platform through a fixing block. The dust collection port is fixedly connected to the vacuum cleaner's suction hose.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] 1. After the worker marks the cutting position on the plasterboard, it can be placed on the horizontal placement beam of this application. Then, the vertical position of the plasterboard can be adjusted by the height adjustment unit so that the height of the marking line on the plasterboard is aligned with the height of the cutting blade assembly. Then, the moving component can be activated to drive the cutting blade assembly to move towards the marking line on the plasterboard. During the movement, the two cutting blades in the cutting blade assembly can make a groove on the front and back of the plasterboard along the marking line. In this way, only a thin connecting section will be left on the plasterboard at the marking line. When the grinding scraper then contacts the connecting section, it can easily cut the plasterboard completely. During the movement of the grinding scraper, the coarse abrasive surfaces on the upper and lower sides can automatically grind the cut of the plasterboard. Therefore, it can be seen that when the cutting blade assembly of this application moves along the marked lines on the gypsum board, it can complete the scoring, cutting and polishing of the gypsum board in one go. Compared with the existing technology, it is not only more convenient and faster to operate, but also saves time and effort. Especially when working on large-area buildings with a large amount of gypsum board, it can greatly improve the working speed.

[0019] 2. The two cutting blades of this application are designed at an angle, which allows the cutting edge of the blade to cut into the plasterboard first when it is slicing. This not only reduces the resistance of the cutting blade when slicing along the marked lines on the plasterboard, but also improves the smoothness of the cut edge of the plasterboard after slicing. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure when viewed from the direction of the height adjustment unit of this application;

[0022] Figure 2 yes Figure 1 A schematic diagram of the overall structure of this application when viewed from the opposite side;

[0023] Figure 3 This is a structural schematic diagram of the horizontally placed beam in this application;

[0024] Figure 4 This is a structural schematic diagram of the cutting blade assembly and related components of this application;

[0025] Figure 5 This is a structural diagram showing the plasterboard fixed to this application.

[0026] Figure 6yes Figure 5 A top view of the overall structure.

[0027] Reference numerals: 1. Bottom support platform; 2. Horizontal placement beam; 3. Height adjustment unit; 31. U-shaped lifting frame; 32. Hydraulic cylinder; 4. Cutting blade assembly; 41. Cutting blade; 42. Grinding scraper; 43. Coarse frosted surface; 5. Moving component; 51. Guide groove; 52. Adjusting threaded rod; 53. Drive motor; 54. Slider; 55. Support rod; 6. Blade handle; 7. Bracket; 8. Mounting plate; 9. First spring; 10. Guide rod; 11. Second spring; 12. Adjusting column; 13. Adjusting hole; 14. Clamping frame; 15. Circular clamping plate; 16. Threaded knob; 17. Ash collection port; 18. Fixing block; 19. Vacuum cleaner. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0029] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this application discloses a gypsum board cutting device, which includes a bottom support platform 1, a horizontal placement beam 2 above the bottom support platform 1, and a height adjustment unit 3 connected to one side of the horizontal placement beam 2. The height adjustment unit 3 can adjust the position of the horizontal placement beam 2 in the vertical direction.

[0030] A cutting blade assembly 4 is provided above the horizontally placed beam 2. The lower end of the cutting blade assembly 4 is connected to the moving component 5. The moving component 5 can drive the cutting blade assembly 4 to move along the length direction of the horizontally placed beam 2.

[0031] The cutting blade assembly 4 includes two cutting blades 41 symmetrically arranged along the length of the horizontally placed beam 2. The sides of the two cutting blades 41 that are close to each other are both cutting edges. The minimum distance between the two cutting blades 41 is less than the thickness of the gypsum board. A grinding scraper 42 is provided at one end of the middle area of ​​the two cutting blades 41. The two cutting blades 41 are respectively installed on the two side walls of the grinding scraper 42 in the width direction. Both ends of the grinding scraper 42 in the length direction are provided with cutting edges. The upper and lower sides of the blade section of the grinding scraper 42 are both coarse abrasive surfaces 43.

[0032] In the above embodiments, such as Figure 3As shown, a groove can be provided on the upper side of the horizontal placement beam 2 of this application. This can limit the gypsum board when it is placed on it, preventing the gypsum board from slipping off the surface of the horizontal placement beam 2 during the cutting process. Since the specifications of commonly used gypsum boards are generally relatively uniform, the width of the groove on the horizontal placement beam 2 can be slightly larger than the thickness of commonly used ordinary gypsum boards. This way, even if there is a slight deviation in the thickness of the gypsum board, it can still be placed in the groove on the horizontal placement beam 2.

[0033] like Figure 4 As shown, the cutting edge of the cutting blade 41 extends to its two adjacent edges, which increases the cutting edge area of ​​the cutting blade 41 and reduces the resistance when the cutting blade 41 scratches the plasterboard. After the plasterboard is placed on the horizontal beam 2, before the cutting blade assembly 4 begins cutting, the plasterboard is positioned directly in front of the area between the two cutting blades 41, and the grinding scraper 42, whose width is slightly greater than the thickness of the plasterboard, is positioned directly behind the area between the two cutting blades 41, with the cutting edge of one end of the grinding scraper 42 facing the plasterboard. Thus, when the cutting blade assembly 4 cuts the plasterboard, the two cutting blades 41 first make scratches on both sides of the plasterboard, and the grinding scraper 42, located behind them, then further processes the scratched areas on the plasterboard.

[0034] The grinding blade 42 of this application is made of metal, and the coarse abrasive surface 43 on its upper and lower sides is an integrally formed structure, which is similar to the file pattern on the surface of a file. In this way, when the grinding blade moves along the cut of the plasterboard, it not only has a good grinding effect, but also has a long service life.

[0035] When workers need to cut plasterboard, they can first mark the cutting position on the plasterboard, then place the lower end of the plasterboard on the horizontal placement beam 2, and then activate the height adjustment unit 3 to adjust the position of the mark on the plasterboard until it is at the same height as the cutting blade 41 in the cutting blade assembly 4. Then, the worker can hold the upper end of the plasterboard with their hand to keep it in a vertical position, and then activate the moving component 5. The moving component 5 can move the cutting blade assembly 4 towards the plasterboard. Since the minimum distance between the cutting blades 41 of this application is less than the thickness of the plasterboard, when the two cutting blades 41 pass through the sides of the plasterboard simultaneously, they can leave scratches on the surface of the plasterboard at the same time. Then, the cutting edge of the grinding scraper 42 located behind the two cutting blades 41 will contact the scratched area on the plasterboard and completely cut the scratched area. The coarse abrasive surface 43 on the grinding scraper 42 can also automatically grind the cut position of the plasterboard.

[0036] Compared to existing technologies where workers score lines on one side of a gypsum board and then on the other, before breaking the board along the scores and sanding the broken edges, the cutting blade assembly 4 of this application completes the aforementioned tasks in a single movement along the scores on the gypsum board. Therefore, this gypsum board cutting device significantly improves the efficiency of gypsum board cutting, especially when working on buildings with large quantities of gypsum board, as it significantly increases work speed.

[0037] Furthermore, such as Figure 4 , Figure 5 and Figure 6 As shown, the two cutting blades 41 are set at an included angle, and the distance between the two cutting blades 41 near the end of the grinding blade 42 is less than the distance between the other ends of the two cutting blades 41.

[0038] In the above embodiments, the two cutting blades 41 of this application are designed at an angle, which allows the cutting edge of the cutting blade 41 to quickly cut into the plasterboard when it is being cut. This not only reduces the resistance of the cutting blade 41 when it is cutting along the marked lines on the plasterboard, but also improves the smoothness of the cut surface of the plasterboard after cutting.

[0039] Furthermore, such as Figure 4 and Figure 5 As shown, each of the two cutting blades 41 has a handle 6 fixedly connected to one end near the grinding blade 42. The two handles 6 are respectively hinged to the two side walls of the grinding blade 42 in the width direction by a bracket 7 on one side close to each other. A mounting plate 8 is fixedly connected to the lower side of the handle 6 and the corresponding bracket 7. The two mounting plates 8 are fixedly connected by a first spring 9. When the first spring 9 deforms, the elastic force generated can drive the handle 6 to rotate around the hinge point between it and the bracket 7.

[0040] In the above embodiments, the two first springs 9 of this application can maintain a certain angle between the two cutting blades 41 in the initial state. When the two cutting blades 41 of this application begin to scratch on the plasterboard, the cutting blades 41 will be pushed by the plasterboard and rotate a certain angle away from the plasterboard. At this time, the handle 6, which is fixedly connected to the cutting blades 41, will deform along with the first springs 9 below it. The elastic force generated after the deformation of the first springs 9 will maintain the cutting blades 41 scratching a certain depth on the plasterboard. When the thickness of the plasterboard fluctuates, the cutting blades 41 of this application can also adapt well. For example, when the thickness of the plasterboard increases, if the angle between the two cutting blades 41 does not change, the resistance encountered by the cutting blades 41 during the cutting process will increase, which can easily damage the cutting blades 41. When the two cutting blades 41 of this application encounter the same situation, they will adjust the angle between the two cutting blades 41 under the action of the first springs 9 to ensure that the cutting blades 41 scratch a mark of appropriate depth on the surface of the plasterboard.

[0041] Meanwhile, since some gypsum boards may contain hard lumps during the manufacturing process, the cutting blade 41 of this application has a certain obstacle avoidance ability under the action of the first spring 9 when encountering these hard lumps, thus improving the service life of the cutting blade 41.

[0042] Furthermore, such as Figure 6 As shown, the overall width of the grinding blade 42 is greater than the maximum thickness of the plasterboard.

[0043] In the above embodiments, the grinding blade 42 of this application is set in the manner described above. On the one hand, it can ensure that the grinding blade 42 can completely cut along the marked line of the gypsum board. On the other hand, it can ensure that the coarse abrasive surface 43 on the grinding blade 42 can fully grind the upper and lower cuts of the cut gypsum board, thus ensuring the grinding effect.

[0044] Furthermore, such as Figure 1 and Figure 2 As shown, the height adjustment unit 3 includes a horizontally arranged U-shaped lifting frame 31. The open end of the U-shaped lifting frame 31 faces the horizontally placed beam 2, and the lower side of the open end of the U-shaped lifting frame 31 is fixedly connected to both ends of the horizontally placed beam 2. The lower side of the middle position of the closed end of the U-shaped lifting frame 31 is fixedly connected to the output end of the hydraulic cylinder 32, and the other end of the hydraulic cylinder 32 is fixedly connected to the bottom support platform 1.

[0045] In the above embodiments, the hydraulic cylinder 32 of this application can be connected to both ends of the horizontally placed beam 2 simultaneously via the U-shaped lifting frame 31, ensuring that the horizontally placed beam 2 remains horizontal during movement. When it is necessary to adjust the vertical position of the plasterboard on the horizontally placed beam 2, the hydraulic cylinder 32 can be activated. By adjusting the extension and retraction of its output end, the height of the plasterboard on the horizontally placed beam 2 can be adjusted via the U-shaped lifting frame 31, so that the marked line on the plasterboard is level with the height of the cutting blade assembly 4. The height adjustment unit 3 of this application is not only convenient to operate, but the adjustment process is also sufficiently smooth.

[0046] Furthermore, such as Figure 1 and Figure 2 As shown, two guide rods 10 are provided through the closed end of the U-shaped lifting frame 31. The U-shaped lifting frame 31 can move up and down along the two guide rods 10, and the axes of the two guide rods 10 are symmetrical about the axis of the hydraulic cylinder 32. The lower ends of the two guide rods 10 are fixedly connected to the bottom support platform 1.

[0047] In the above embodiments, the two guide rods 10 provided on the U-shaped lifting frame 31 can further ensure the stability of the U-shaped lifting frame 31 when it moves with the horizontally placed beam 2 under the drive of the hydraulic cylinder 32.

[0048] Furthermore, such as Figure 1 As shown, both ends of the horizontally placed beam 2 are fixedly connected to the open end of the U-shaped lifting frame 31 by the second spring 11.

[0049] In the above embodiments, during the process of cutting gypsum board, in order to prevent the gypsum board from tilting and affecting the cutting accuracy, the worker generally needs to hold the gypsum board steady by hand. However, the grinding scraper 42 has a certain thickness, and when the grinding scraper 42 cuts into the gypsum board, it is easy to cause the overall height of the gypsum board to change. If the worker does not release the gypsum board in time, the grinding scraper 42 can easily cause chipping at the cut edge of the gypsum board. Since the U-shaped lifting frame 31 of this application is connected to the horizontal placement beam 2 for placing the gypsum board by the second spring 11, the change in the height of the gypsum board is easily absorbed by the second spring 11. This can effectively prevent chipping at the cut edge when the grinding scraper 42 cuts hard into the marked line of the gypsum board.

[0050] Furthermore, such as Figure 2 and Figure 6As shown, the horizontally placed beam 2 is provided with two adjusting columns 12 on the side near the U-shaped lifting frame 31. The lower end of the adjusting column 12 is fixedly connected to the bottom support platform 1. Multiple adjusting holes 13 are evenly provided on the column body of the adjusting column 12 along the axial direction. A clamping frame 14 is fixedly connected to one of the adjusting holes 13 by bolts and nuts. A circular clamping plate 15 is provided on the inner side of the clamping frame 14 away from the adjusting column 12. The side of the circular clamping plate 15 away from the adjusting column 12 is fixedly connected to one end of the threaded knob 16. The other end of the threaded knob 16 passes through the end of the clamping frame 14 away from the adjusting column 12 and the two are threadedly connected.

[0051] In the above embodiments, the two adjusting columns 12 of this application are installed on the side of the horizontally placed beam 2 near the U-shaped lifting frame 31, which can effectively utilize the space at the opening of the U-shaped lifting frame 31. The clamping frame 14 of this application is E-shaped and consists of three parallel short rods and one long rod. One end of the short rod can be installed on the adjusting hole 13 of the adjusting column 12 by bolts and nuts to increase the contact area between the clamping frame 14 and the adjusting column 12. The threaded section of the threaded knob 16 passes through the short rod at the other end of the clamping frame 14 and the two are threadedly connected. This end of the clamping frame 14 can provide an installation base for the threaded knob 16. The circular clamping plate 15 of this application is located between the short rod in the middle of the clamping frame 14 and the short rod at the end away from the adjusting column 12 and is connected to the threaded section of the threaded knob 16.

[0052] like Figure 5 and Figure 6 As shown, when the plasterboard is placed between the circular clamping plate 15 and the short rod between the clamping frame 14, the worker can move the circular clamping plate 15 within the clamping frame 14 by turning the knob end of the threaded knob 16. This, combined with the short rod in the middle of the clamping frame 14, secures the plasterboard. After the plasterboard is adjusted vertically before cutting, it can be further secured by the clamping frame 14 and the circular clamping plate 15 on the two adjusting columns 12. This eliminates the need for the worker to manually hold the plasterboard during the cutting process, and the securing effect of the above solution is more stable compared to the worker manually holding the plasterboard.

[0053] Since the adjusting column 12 of this application has multiple adjusting holes 13, workers can adjust the installation position of the clamping frame 14 on the adjusting column as needed, thereby accommodating gypsum boards of different heights.

[0054] Furthermore, such as Figure 2As shown, the moving component 5 includes a guide groove 51 located below the horizontally placed beam 2. An adjusting threaded rod 52 is provided in the guide groove 51. The two ends of the adjusting threaded rod 52 are rotatably connected to the two ends of the guide groove 51 along its length. One end of the adjusting threaded rod 52 passes through the corresponding end of the guide groove 51 and is fixedly connected to the output end of the drive motor 53. The housing of the drive motor 53 is mounted on the bottom support platform 1. A slider 54 with the same width as the guide groove 51 is fitted on the adjusting threaded rod 52 and the two are threaded together. Two support rods 55 are provided above the slider 54. The upper ends of the two support rods 55 are fixedly connected to the lower side of the two brackets 7, and the lower ends of the two support rods 55 are fixedly connected to the slider 54. The distance between the two support rods 55 is greater than the thickness of the gypsum board.

[0055] In the above embodiments, there is a certain gap between the two support rods 55 of this application. The width of the gap is greater than the thickness of the gypsum board, which ensures that the support rods 55 will not be stuck by the gypsum board during the movement process.

[0056] The drive motor 53 of this application can drive the adjusting threaded rod 52 to rotate within the guide groove 51. Since the slider 54 is threadedly connected to the adjusting threaded rod 52 and its width is equal to the width of the guide groove 51, the slider 54 can move along its axis when the adjusting threaded rod 52 rotates. During the movement, the slider 54 moves along with the two supports 7 via the two support rods 55 above, thereby driving the cutting blade 41 and the grinding blade 42 connected to the two supports 7 to move along the marked line on the plasterboard. The worker can adjust the direction of movement of the cutting blade assembly 4 by adjusting the rotation direction of the drive motor 53, and adjust the speed at which the cutting blade assembly 4 cuts the plasterboard by adjusting the speed of the drive motor 53, effectively improving the convenience of plasterboard cutting compared to the prior art.

[0057] Furthermore, such as Figure 2 As shown, a dust collection port 17 is provided above the side of the guide groove 51 away from the adjusting column 12. The lower side of the dust collection port 17 is fixedly connected to the bottom support platform 1 through a fixing block 18. The dust collection port 17 is fixedly connected to the vacuum cleaner hose of the vacuum cleaner 19.

[0058] In the above embodiments, the bottom support platform 1 of this application still has a certain extension section on the side of the guide groove 51 away from the hydraulic cylinder 32. This extension section of the bottom support platform 1 can not only be used to install the fixing block 18 that supports the ash collection port 17, but also to place the vacuum cleaner 19. The remaining part can also be used to place the cut gypsum board raw materials.

[0059] When the horizontal beam 2 of this application reaches its lowest point under the drive of the height adjustment unit 3, there is still a certain height gap between it and the guide groove 51. The dust collection port 17 of this application is located at this gap. In this way, when the dust generated during the gypsum board cutting process falls into this gap under the action of gravity, it will be quickly collected by the vacuum cleaner 19 through the dust collection port 17. This can reduce the amount of dust generated at the cutting site on the one hand, and prevent the dust from falling onto the adjusting threaded rod 52 and affecting its normal operation on the other hand.

[0060] The implementation principle of this embodiment is as follows: Before using the gypsum board cutting device of this application, the worker can first mark the position to be cut on the gypsum board. Then, the gypsum board can be placed on the horizontal placement beam 2, and then the hydraulic cylinder 32 is activated. The height of the horizontal placement beam 2 is adjusted by the U-shaped lifting frame 31 so that the marked position on the gypsum board is flush with the position of the cutting blade assembly 4. Next, the worker can further adjust the position of the clamping frame 14 on the two adjusting columns 12 to ensure that the clamping frame 14 can fix the upper end of the gypsum board. After adjusting the position of the clamping frame 14, the two threaded knobs 16 are turned in sequence to drive the circular clamping plate 15 to cooperate with the clamping frame 14 to clamp the gypsum board.

[0061] At this point, the drive motor 53 can be started to rotate the adjusting threaded rod 52. The slider 54 on the adjusting threaded rod 52 can then move along the axis of the adjusting threaded rod 52, and through the two support rods 55 above, it moves the cutting blade assembly 4 towards the plasterboard. The two cutting blades 41 will first scratch the front and back of the plasterboard, leaving scratches on both sides simultaneously. The grinding blades 42 behind them will then further cut the scratched areas on the plasterboard, completely separating the scratched areas. Then, the coarse abrasive surfaces 43 on the upper and lower sides of the grinding blades 42 will grind the upper and lower cuts on the plasterboard. According to the above working principle, when the cutting blade assembly 4 has completely traveled along the marked path on the plasterboard, the scratching, cutting, and grinding of the plasterboard can be completed simultaneously. If the cut area needs to be further ground, the drive motor 53 can be reversed, so that the cutting blade assembly 4 can automatically perform secondary grinding on the cut area of ​​the plasterboard.

[0062] The gypsum board cutting device of this application is not only more convenient and faster to operate than the prior art, but also saves time and effort. Especially when operating on large-area buildings with a large amount of gypsum board, it can greatly improve the operation speed.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A gypsum board cutting device, comprising a bottom support platform (1), characterized in that: A horizontal beam (2) is provided above the bottom support platform (1). One side of the horizontal beam (2) is connected to a height adjustment unit (3). The height adjustment unit (3) can adjust the position of the horizontal beam (2) in the vertical direction. A cutting blade assembly (4) is provided above the horizontally placed beam (2). The lower end of the cutting blade assembly (4) is connected to a moving component (5). The moving component (5) can drive the cutting blade assembly (4) to move along the length direction of the horizontally placed beam (2). The cutting blade assembly (4) includes two cutting blades (41) symmetrically arranged along the length of the horizontally placed beam (2). The two cutting blades (41) are adjacent to each other and are both cutting edges. The minimum distance between the two cutting blades (41) is less than the thickness of the gypsum board. A grinding scraper (42) is provided at one end of the middle area of ​​the two cutting blades (41). The two cutting blades (41) are respectively installed on the two side walls of the grinding scraper (42) in the width direction. Both ends of the grinding scraper (42) in the length direction are provided with cutting edges. The upper and lower sides of the blade section of the grinding scraper (42) are both coarsely sanded surfaces (43). The two cutting blades (41) are arranged at an included angle, and the distance between the two cutting blades (41) near the end of the grinding blade (42) is less than the distance between the other ends of the two cutting blades (41); Each of the two cutting blades (41) is fixedly connected to a handle (6) at one end near the grinding blade (42). The two handles (6) are respectively hinged to the two side walls of the grinding blade (42) in the width direction through a bracket (7) on one side close to each other. The handle (6) and the bracket (7) at the corresponding position are both fixedly connected to a mounting plate (8). The two mounting plates (8) are fixedly connected by a first spring (9). When the first spring (9) deforms, the elastic force generated can drive the handle (6) to rotate around the hinge point between it and the bracket (7).

2. The gypsum board cutting device according to claim 1, characterized in that: The overall width of the grinding blade (42) is greater than the maximum thickness of the gypsum board.

3. The gypsum board cutting device according to claim 1, characterized in that: The height adjustment unit (3) includes a horizontally arranged U-shaped lifting frame (31), the open end of the U-shaped lifting frame (31) faces the horizontally placed beam (2), and the lower side of the open end of the U-shaped lifting frame (31) is fixedly connected to both ends of the horizontally placed beam (2); the lower side of the middle position of the closed end of the U-shaped lifting frame (31) is fixedly connected to the output end of the hydraulic cylinder (32), and the other end of the hydraulic cylinder (32) is fixedly connected to the bottom support platform (1).

4. The gypsum board cutting device according to claim 3, characterized in that: Two guide rods (10) are provided through the closed end of the U-shaped lifting frame (31). The U-shaped lifting frame (31) can move up and down along the two guide rods (10), and the axes of the two guide rods (10) are symmetrical about the axis of the hydraulic cylinder (32). The lower ends of the two guide rods (10) are fixedly connected to the bottom support platform (1).

5. The gypsum board cutting device according to claim 3 or 4, characterized in that: Both ends of the horizontally placed beam (2) are fixedly connected to the open end of the U-shaped lifting frame (31) by a second spring (11).

6. The gypsum board cutting device according to claim 5, characterized in that: The horizontal beam (2) is provided with two adjusting columns (12) on the side near the U-shaped lifting frame (31). The lower end of the adjusting column (12) is fixedly connected to the bottom support platform (1). Multiple adjusting holes (13) are evenly provided on the column body of the adjusting column (12) along the axial direction. A clamping frame (14) is fixedly connected to one of the adjusting holes (13) by bolts and nuts. The clamping frame (14) has a circular clamping plate (15) on the inner side of the end away from the adjusting column (12). The circular clamping plate (15) is fixedly connected to one end of the threaded knob (16) on the side away from the adjusting column (12). The other end of the threaded knob (16) passes through the end of the clamping frame (14) away from the adjusting column (12) and the two are threadedly connected.

7. The gypsum board cutting device according to claim 6, characterized in that: The moving component (5) includes a guide groove (51) located below the horizontally placed beam (2). An adjusting threaded rod (52) is provided in the guide groove (51). The two ends of the adjusting threaded rod (52) are rotatably connected to the two ends of the guide groove (51) in the length direction, and one end of the adjusting threaded rod (52) passes through the corresponding end of the guide groove (51) and is fixedly connected to the output end of the drive motor (53). The housing of the drive motor (53) is mounted on the bottom support platform (1). The adjusting threaded rod (52) is fitted with a slider (54) with the same width as the guide groove (51) and the two are threaded together. Two support rods (55) are provided above the slider (54). The upper ends of the two support rods (55) are fixedly connected to the lower side of the two brackets (7) respectively. The lower ends of the two support rods (55) are fixedly connected to the slider (54), and the distance between the two support rods (55) is greater than the thickness of the gypsum board.

8. The gypsum board cutting device according to claim 7, characterized in that, The guide groove (51) is provided with a dust collection port (17) on the side away from the adjusting column (12). The lower side of the dust collection port (17) is fixedly connected to the bottom support platform (1) through a fixing block (18). The dust collection port (17) is fixedly connected to the vacuum cleaner hose (19).

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