A cutting apparatus for gypsum board

Abstract

The utility model relates to the technical field of gypsum board processing, and specifically discloses a cutting equipment for gypsum board, which comprises a horizontal support plate, a positioning and clamping mechanism and a straight cutting mechanism arranged on the upper side of the horizontal support plate, the positioning and clamping mechanism comprises a U-shaped frame fixedly connected to the upper end of the horizontal support plate, an electric telescopic rod with an output end extending into the U-shaped frame is installed on the upper end of the U-shaped frame, a pressing plate is arranged in the U-shaped frame, and a pressure sensor is fixedly connected between the pressing plate and the output end of the electric telescopic rod; the driving mechanism drives the moving block to move linearly forward along the trapezoidal sliding groove and the trapezoidal sliding block guide, drives the cutting knife to move forward synchronously, makes the cutting knife blade cut into the gypsum board, and at the same time, the gypsum board is tightly fixed by the pressing plate and the positioning plate, the moving track of the cutting knife is accurate, the cutting line is effectively prevented from deviating from the predetermined track, a large amount of gypsum dust is avoided, and the construction environment and the health of the operator are protected.

Description

Technical Field

[0001] This utility model relates to the field of gypsum board processing technology, and specifically discloses a gypsum board cutting device. Background Technology

[0002] Gypsum board, a commonly used material in the building decoration industry, is lightweight, fire-resistant, and easy to process, and is widely used in interior ceilings, partitions, and decorative designs. In actual construction, gypsum board often needs to be cut into strips to fit the spacing of the joists. However, the cutting precision and efficiency of gypsum board directly affect the construction quality, thus placing high demands on the functionality and stability of the cutting equipment.

[0003] Currently, there are two main types of gypsum board cutting methods: one is to cut directly with a handheld electric saw, but the high-speed rotating saw blade generates a large amount of gypsum dust, which not only pollutes the construction environment but also threatens the health of the operators; the other is to use a utility knife to score and then break the board by hand. This method can effectively avoid dust pollution. The principle is to use a utility knife to score the paper and gypsum core along the marked lines, and then break the board along the score lines. However, this method relies on manual control of the utility knife's movement path and lacks reliable fixation of the gypsum board. During the cutting process, both the board and the utility knife are prone to displacement, causing the cutting line to deviate from the predetermined trajectory. Especially when cutting long strips of board, the manual control of the utility knife's movement trajectory can cause excessive dimensional deviations.

[0004] Therefore, a gypsum board cutting device is needed to solve the above problems. Utility Model Content

[0005] This utility model proposes a gypsum board cutting device. Through optimized structural design, it can avoid generating a large amount of gypsum dust to protect the construction environment and the health of operators. It can also reliably fix the gypsum board through a positioning and clamping mechanism, and accurately control the movement trajectory of the cutting blade with the help of a straight cutting mechanism, thereby effectively preventing the cutting line from deviating from the predetermined trajectory.

[0006] This utility model is implemented as follows: a gypsum board cutting device includes a horizontal support plate, and a positioning clamping mechanism and a straight cutting mechanism are provided on the upper side of the horizontal support plate.

[0007] The positioning and clamping mechanism includes a U-shaped frame fixedly connected to the upper end of a horizontal support plate. An electric telescopic rod with an output end extending into the upper end of the U-shaped frame is installed. A pressure plate is provided inside the U-shaped frame. A pressure sensor is fixedly connected between the pressure plate and the output end of the electric telescopic rod. A positioning plate located inside the U-shaped frame is fixedly connected to the upper end of the horizontal support plate.

[0008] The straight cutting mechanism includes a fixed plate fixedly connected to the right end of the U-shaped frame. A movable block is slidably connected to the right end of the fixed plate through a trapezoidal groove and a trapezoidal slider. A disc is provided to the right of the movable block. A bearing is embedded in the left end of the disc. A connecting shaft is fixedly connected between the inner wall of the bearing and the right end of the movable block. A knife holder is fixedly connected to the outer wall of the disc. A cutting blade extending to the outside of the knife holder is fixedly connected inside the knife holder. The straight cutting mechanism also includes a driving mechanism.

[0009] A controller is installed at the rear end of the outer wall of the U-shaped frame.

[0010] As a preferred embodiment of the gypsum board cutting device of this utility model, the driving mechanism includes two end plates distributed front and rear, fixedly connected to the right end of the fixed plate, a lead screw that passes through the moving block and is threadedly connected to the moving block is rotatably connected between the two end plates, and a drive motor whose output end is fixedly connected to the lead screw is installed on the outer wall of the rear end plate.

[0011] As a preferred embodiment of the gypsum board cutting equipment of this utility model, a crossbar is fixedly connected to the right end of the disc, the center lines of the disc, the bearing and the crossbar coincide, and a hand-pressing rod is fixedly connected to the outer wall of the crossbar.

[0012] As a preferred embodiment of the gypsum board cutting equipment of this utility model, the front and rear sides of the inner wall of the U-shaped frame are provided with sliding grooves, and the interior of each of the two sliding grooves is slidably connected with a slider that is fixedly connected to the pressure plate.

[0013] As a preferred embodiment of the gypsum board cutting equipment of this utility model, an operation panel is installed at the rear end of the outer wall of the U-shaped frame.

[0014] As a preferred embodiment of the gypsum board cutting equipment of this utility model, the lower end of the pressure plate is equipped with an anti-slip pad.

[0015] As a preferred embodiment of the gypsum board cutting equipment of this utility model, vertical support plates are fixedly connected to both the left and right sides of the lower end face of the horizontal support plate, and mounting plates with multiple mounting holes are fixedly connected to the opposite sides of the two vertical support plates.

[0016] The beneficial effects of this utility model are:

[0017] 1. After the plasterboard is positioned and fixed, the drive mechanism drives the moving block to move forward in a straight line along the trapezoidal slide and the trapezoidal slider guide, which in turn drives the cutting blade to move forward synchronously. The operator holds the hand pressure bar and applies downward pressure so that the cutting blade blade cuts into the plasterboard. At the same time, the plasterboard is tightly fixed by the pressure plate and the positioning plate to ensure that the cutting blade moves accurately, thereby effectively preventing the cutting line from deviating from the predetermined trajectory.

[0018] 2. After the cutting knife completely cuts through the plasterboard facing paper and plaster core, the operator can directly break the plasterboard by hand along the cut to obtain the required long strip of board. Combined with the whole working method, this avoids the generation of a large amount of plaster dust, thus protecting the construction environment and the health of the operators. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a front sectional view of the gypsum board cutting equipment of this utility model.

[0021] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 This is a partial right-side view of the structure of this utility model;

[0023] Figure 4 This is a right-side cross-sectional view of the tool holder of this utility model;

[0024] Figure 5 This is an external structural diagram of the U-shaped frame of this utility model.

[0025] The markings in the diagram are: 1. Horizontal support plate; 2. U-shaped frame; 3. Electric telescopic rod; 4. Pressure plate; 5. Pressure sensor; 6. Controller; 7. Positioning plate; 8. Fixing plate; 9. End plate; 10. Drive motor; 11. Lead screw; 12. Moving block; 13. Disc; 14. Connecting shaft; 15. Knife holder; 16. Cutting knife; 17. Bearing; 18. Crossbar; 19. Hand pressure rod; 20. Vertical support plate; 21. Operation panel. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0027] Please see Figure 1-5 A gypsum board cutting device includes a horizontal support plate 1, and a positioning clamping mechanism and a straight cutting mechanism are provided on the upper side of the horizontal support plate 1.

[0028] The positioning and clamping mechanism includes a U-shaped frame 2 fixedly connected to the upper end of the horizontal support plate 1. An electric telescopic rod 3 with an output end extending into the upper end of the U-shaped frame 2 is installed. A pressure plate 4 is provided inside the U-shaped frame 2. A pressure sensor 5 is fixedly connected between the pressure plate 4 and the output end of the electric telescopic rod 3. A positioning plate 7 located inside the U-shaped frame 2 is fixedly connected to the upper end of the horizontal support plate 1.

[0029] The straight cutting mechanism includes a fixed plate 8 fixedly connected to the right end of the U-shaped frame 2. The right end of the fixed plate 8 is slidably connected to a moving block 12 via a trapezoidal groove and a trapezoidal slider. A disc 13 is provided to the right of the moving block 12. A bearing 17 is embedded in the left end of the disc 13. A connecting shaft 14 is fixedly connected between the inner wall of the bearing 17 and the right end of the moving block 12. A knife holder 15 is fixedly connected to the outer wall of the disc 13. A cutting blade 16 extending to the outside of the knife holder 15 is fixedly connected inside the knife holder 15. The straight cutting mechanism also includes a drive mechanism.

[0030] The controller 6 is installed at the rear end of the outer wall of the U-shaped frame 2.

[0031] In this embodiment: In the initial state, the electric telescopic rod 3 is in the retracted state, the pressure plate 4 is located inside the upper part of the U-shaped frame 2, and the cutting blade 16 is located at the rear side;

[0032] When using, place the plasterboard to be cut on the upper end of the horizontal support plate 1, push the plasterboard to the right so that its right end passes through the internal space of the U-shaped frame 2 and fits against the front end of the positioning plate 7, and make the cutting line of the plasterboard aligned with the position of the cutting blade 16 to ensure accurate cutting position and complete the positioning of the plasterboard.

[0033] Then, the controller 6 controls the electric telescopic rod 3 to start. The output end of the electric telescopic rod 3 extends downward and pushes the pressure plate 4 down. After the anti-slip pad at the lower end of the pressure plate 4 contacts the upper surface of the gypsum board, pressure continues to be applied until the gypsum board is tightly attached to the horizontal support plate 1. During this period, the pressure sensor 5 monitors the pressure value between the output end of the electric telescopic rod 3 and the pressure plate 4 in real time and transmits the signal to the controller 6. When the pressure reaches the preset threshold, the controller 6 controls the electric telescopic rod 3 to stop moving, thus completing the stable clamping of the board and preventing the board from shifting during cutting.

[0034] Then, the moving block 12 is driven by the drive mechanism to move forward linearly under the guidance of the trapezoidal slide and the trapezoidal slider. The moving block 12 drives the disc 13, the knife holder 15 and the cutting knife 16 to move forward synchronously through the connecting shaft 14 and the bearing 17. During the forward movement of the cutting knife 16, the operator holds the hand pressure bar 19 to apply downward pressure. The pressure is transmitted to the knife holder 15 through the crossbar 18 and the disc 13, so that the cutting knife 16 cuts into the gypsum board. The bearing 17 ensures that the cutting knife 16 is perpendicular to the surface of the gypsum board. Since the cutting knife 16 moves precisely with the moving block 12 and the trapezoidal slider, and the gypsum board has been positioned and fixed by the positioning plate 7 and the pressure plate 4, the movement trajectory of the cutting knife 16 can be precisely controlled, thereby effectively preventing the cutting line from deviating from the predetermined trajectory.

[0035] When the cutting blade 16 has completely passed through the gypsum board, the cutting operation is completed. Since the cutting blade 16 has completely cut off the gypsum board's facing paper and gypsum core along the predetermined cutting line, the operator can directly break the gypsum board by hand along the cut to obtain the required long strip of board. Combined with the entire working method, this avoids the generation of a large amount of gypsum dust, thus protecting the construction environment and the health of the operators.

[0036] As a technical optimization of this utility model, the driving mechanism includes two end plates 9 fixedly connected to the right end of the fixed plate 8 and distributed in front and behind. A lead screw 11 is rotatably connected between the two end plates 9, passing through the moving block 12 and threadedly connected to the moving block 12. A drive motor 10 with its output end fixedly connected to the lead screw 11 is installed on the outer wall of the rear end plate 9.

[0037] In this embodiment: the output shaft of the drive motor 10 drives the lead screw 11 to rotate, and under the guidance of the trapezoidal groove and the trapezoidal slider, it drives the moving block 12 to move linearly.

[0038] As a technical optimization of this utility model, a crossbar 18 is fixedly connected to the right end of the disc 13. The center lines of the disc 13, the bearing 17 and the crossbar 18 coincide. A hand-pressing rod 19 is fixedly connected to the outer wall of the crossbar 18.

[0039] In this embodiment: when the operator holds the hand pressure lever 19 and applies downward pressure, the force is transmitted to the disc 13 through the crossbar 18, and then acts on the knife holder 15 and the cutting knife 16, causing the blade to cut into the plasterboard.

[0040] As a technical optimization of this utility model, the front and rear sides of the inner wall of the U-shaped frame 2 are provided with sliding grooves, and the sliding grooves are slidably connected to the sliders that are fixedly connected to the pressure plate 4.

[0041] In this embodiment: the sliding grooves on the front and rear sides of the inner wall of the U-shaped frame 2 are slidably engaged with the slider fixed to the pressure plate 4. When the electric telescopic rod 3 drives the pressure plate 4 to rise and fall, the slider moves synchronously along the sliding groove, restricting the pressure plate 4 to move only in the vertical direction, avoiding lateral swaying during clamping, and ensuring that the anti-slip pad at the lower end of the pressure plate 4 evenly presses the gypsum board.

[0042] As a technical optimization of this utility model, an operation panel 21 is installed at the rear end of the outer wall of the U-shaped frame 2.

[0043] In this embodiment: the operation panel 21 is installed on the rear end of the outer wall of the U-shaped frame 2 as a human-machine interface. The operator can input clamping, cutting, and releasing commands to the controller 6 through it, and can preset clamping pressure thresholds, adjust the speed of the drive motor 10, and other parameters.

[0044] As a technical optimization of this utility model, the lower end of the pressure plate 4 is equipped with an anti-slip pad.

[0045] In this embodiment: the anti-slip pad at the lower end of the pressure plate 4 is made of rubber or silicone with a textured surface. When the electric telescopic rod 3 pushes the pressure plate 4 to press the gypsum board, the anti-slip pad contacts the upper surface of the board, increasing the friction to prevent the gypsum board from sliding due to the lateral force applied by the cutting blade 16 during the cutting process.

[0046] As a technical optimization of this utility model, vertical support plates 20 are fixedly connected to both the left and right sides of the lower end face of the horizontal support plate 1, and mounting plates with multiple mounting holes are fixedly connected to the opposite sides of the two vertical support plates 20.

[0047] In this embodiment, the vertical support plate 20 at the lower end of the horizontal support plate 1 is fixed to the workbench or the ground by a mounting plate with mounting holes, providing vertical support and a stable mounting reference for the equipment.

[0048] The working principle and usage process of this utility model are as follows: In the initial state, the electric telescopic rod 3 is in the retracted state, the pressure plate 4 is located inside the upper part of the U-shaped frame 2, and the cutting blade 16 is located on the rear side.

[0049] When using, place the plasterboard to be cut on the upper end of the horizontal support plate 1, push the plasterboard to the right so that its right end passes through the internal space of the U-shaped frame 2 and fits against the front end of the positioning plate 7, and make the cutting line of the plasterboard aligned with the position of the cutting blade 16 to ensure accurate cutting position and complete the positioning of the plasterboard.

[0050] The operator then sends a command to the controller 6 via the control panel 21. Upon receiving the signal, the controller 6 controls the electric telescopic rod 3 to start. The output end of the electric telescopic rod 3 extends downward and pushes the pressure plate 4 down. After the anti-slip pad at the lower end of the pressure plate 4 contacts the upper surface of the gypsum board, pressure continues to be applied until the gypsum board is tightly attached to the horizontal support plate 1. During this period, the pressure sensor 5 monitors the pressure value between the output end of the electric telescopic rod 3 and the pressure plate 4 in real time and transmits the signal to the controller 6. When the pressure reaches the preset threshold, the controller 6 controls the electric telescopic rod 3 to stop moving, thus completing the stable clamping of the board and preventing the board from shifting during cutting.

[0051] Then, the operator sends a command to the controller 6 through the operation panel 21. The controller 6 starts the drive motor 10. The output shaft of the drive motor 10 drives the lead screw 11 to rotate. Under the guidance of the trapezoidal slide and the trapezoidal slider, the moving block 12 moves forward in a straight line. The moving block 12 drives the disc 13, the knife holder 15 and the cutting blade 16 to move forward synchronously through the connecting shaft 14 and the bearing 17. During the forward movement of the cutting blade 16, the operator holds the hand pressure lever 19 to apply downward pressure. The pressure is transmitted to the knife holder 15 through the crossbar 18 and the disc 13, so that the cutting blade 16 cuts into the gypsum board. The bearing 17 ensures that the cutting blade 16 is perpendicular to the surface of the gypsum board. Since the cutting blade 16 moves precisely with the moving block 12 and the trapezoidal slider, and the gypsum board has been positioned and fixed by the positioning plate 7 and the pressure plate 4, the movement trajectory of the cutting blade 16 can be precisely controlled, thereby effectively preventing the cutting line from deviating from the predetermined trajectory.

[0052] When the cutting blade 16 has completely passed through the gypsum board, the cutting operation is completed. Since the cutting blade 16 has completely cut off the gypsum board's facing paper and gypsum core along the predetermined cutting line, the operator can directly break the gypsum board by hand along the cut to obtain the required long strip of board. Combined with the entire working method, this avoids the generation of a large amount of gypsum dust, thus protecting the construction environment and the health of the operators.

[0053] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0054] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A gypsum board cutting device, comprising a horizontal support plate (1), characterized in that: The upper side of the horizontal support plate (1) is provided with a positioning clamping mechanism and a straight cutting mechanism; The positioning and clamping mechanism includes a U-shaped frame (2) fixedly connected to the upper end of the horizontal support plate (1). An electric telescopic rod (3) with its output end extending into the upper end of the U-shaped frame (2) is installed. A pressure plate (4) is provided inside the U-shaped frame (2). A pressure sensor (5) is fixedly connected between the pressure plate (4) and the output end of the electric telescopic rod (3). A positioning plate (7) located inside the U-shaped frame (2) is fixedly connected to the upper end of the horizontal support plate (1). The straight cutting mechanism includes a fixed plate (8) fixedly connected to the right end of the U-shaped frame (2). The right end of the fixed plate (8) is slidably connected to a moving block (12) through a trapezoidal groove and a trapezoidal slider. A disc (13) is provided to the right of the moving block (12). A bearing (17) is embedded in the left end of the disc (13). A connecting shaft (14) is fixedly connected between the inner wall of the bearing (17) and the right end of the moving block (12). A knife holder (15) is fixedly connected to the outer wall of the disc (13). A cutting knife (16) extending to the outside of the knife holder (15) is fixedly connected inside the knife holder (15). The straight cutting mechanism also includes a driving mechanism. A controller (6) is installed at the rear end of the outer wall of the U-shaped frame (2).

2. The gypsum board cutting equipment according to claim 1, characterized in that: The drive mechanism includes two end plates (9) fixedly connected to the right end of the fixed plate (8) and distributed in front and behind. A lead screw (11) is rotatably connected between the two end plates (9) and passes through the moving block (12) and is threadedly connected to the moving block (12). A drive motor (10) with its output end fixedly connected to the lead screw (11) is installed on the outer wall of the rear end plate (9).

3. The gypsum board cutting equipment according to claim 1, characterized in that: A crossbar (18) is fixedly connected to the right end of the disc (13). The center lines of the disc (13), the bearing (17) and the crossbar (18) coincide. A hand-pressing rod (19) is fixedly connected to the outer wall of the crossbar (18).

4. The gypsum board cutting equipment according to claim 1, characterized in that: The U-shaped frame (2) has sliding grooves on both the front and rear sides of its inner wall, and the two sliding grooves are slidably connected to sliders that are fixedly connected to the pressure plate (4).

5. The gypsum board cutting equipment according to claim 1, characterized in that: An operation panel (21) is installed at the rear end of the outer wall of the U-shaped frame (2).

6. The gypsum board cutting equipment according to claim 1, characterized in that: The lower end of the pressure plate (4) is equipped with an anti-slip pad.

7. The gypsum board cutting equipment according to claim 1, characterized in that: The horizontal support plate (1) has vertical support plates (20) fixedly connected to both sides of its lower end face, and the two vertical support plates (20) have mounting plates with multiple mounting holes fixedly connected to opposite sides of each other.

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