Gypsum board cutter

Abstract

The utility model relates to the technical field of board cutting, in particular to a gypsum board cutter, which is characterized in that a guide support is integrally provided with a positioning block, the front end and the rear end of the positioning block are respectively and coaxially provided with a positioning groove, the positioning block is provided with two quarter arc-shaped grooves which are arranged in a central symmetry mode relative to the axis of the positioning block, and the quarter arc-shaped grooves are communicated with the positioning block. The guide support is movably matched with a U-shaped frame, the U-shaped frame is integrally formed by two long rods and a short rod, locking discs are coaxially inserted into the positioning grooves respectively, clamping sleeves are integrally arranged on the locking discs respectively, the clamping sleeves and the long rods are in one-to-one corresponding sleeving connection, the number of the locking discs is two, and the two locking discs are in threaded connection through first butterfly screws. The first butterfly screws are inserted into the quarter arc-shaped grooves in a one-to-one correspondence mode, first pressing pieces used in cooperation with the long rods on the corresponding sides of the clamping sleeves are arranged on the clamping sleeves, graduated scales are integrally arranged on the outer surfaces of the long rods respectively, and the long rods are sleeved with a plurality of sets of cutting pieces respectively.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal cutting technology, and in particular to a gypsum board cutter. Background Technology

[0002] In woodworking operations, plasterboard cutters are commonly used to cut plasterboard. However, existing plasterboard cutters can only cut one board at a time, which is inefficient. Furthermore, due to the exposed blades, accidents involving blade injuries frequently occur. This application proposes a plasterboard cutter to solve the above problems. Utility Model Content

[0003] To address the above issues and overcome the shortcomings of existing gypsum board cutters, which can only cut one board at a time, resulting in low efficiency and frequent blade injuries due to exposed blades, this utility model provides a gypsum board cutter. The technical solution includes a guide bracket, characterized in that a positioning block is integrally arranged on the guide bracket. Positioning grooves are coaxially arranged at both ends of the positioning block. Two quarter-arc grooves, centrally symmetrical about their axes, are formed on the positioning block. A U-shaped frame is movably fitted onto the guide bracket. The U-shaped frame is integrally formed by two long rods and one short rod. Locking discs are coaxially inserted into each positioning groove. Each locking disc is integrally equipped with a retainer, which is fitted onto each long rod. There are two locking discs in total, connected by a first wing screw. The first wing screw is inserted into each quarter-arc groove. Each retainer is equipped with a first clamping element that cooperates with the corresponding long rod. A scale is integrally arranged on the outer surface of each long rod. Multiple sets of cutting components are fitted onto each long rod.

[0004] Preferably, each of the cutting components includes a mounting sleeve that slides and fits with the long rod. A blade holder is fixedly connected to the side wall of the mounting sleeve. A blade groove is provided on the blade holder, and a cutting blade is placed in the blade groove. A leaf spring that abuts against the cutting blade is fixedly connected to the blade holder. A clamping groove corresponding to the leaf spring is provided on the blade holder. A connecting hole corresponding to the clamping groove is provided on the leaf spring. A second wing screw that is threadedly connected to the blade holder is inserted into the connecting hole. A second clamping element that cooperates with the long rod is arranged on the mounting sleeve. A connecting shaft is fixedly connected to the side wall of the blade holder, and auxiliary rollers are rotatably connected to both ends of the connecting shaft.

[0005] Preferably, the first clamping member includes a first through groove on the sleeve, a first damping shaft corresponding to the first through groove is fixedly connected to the sleeve, the first damping shaft is hinged to a first pressure plate, and the first pressure plate is integrally arranged with a first column corresponding to the first through groove and abutting against the long rod.

[0006] Preferably, the second clamping member includes a second through groove on the mounting sleeve, a second damping shaft corresponding to the second through groove is fixedly connected to the mounting sleeve, the second damping shaft is hinged to a second pressure plate, and the second pressure plate is integrally arranged with a second column corresponding to the second through groove and abutting against the long rod.

[0007] Preferably, the upper end of the guide bracket is threaded with an assist handle, and the lower end of the guide bracket is provided with an installation groove arranged along its length. The inner wall of the installation groove is rotatably connected with a number of pulleys evenly distributed along its length.

[0008] The beneficial effects of this utility model are:

[0009] 1. In the process of use, this application can cut multiple pieces of gypsum board at one time by adjusting the spacing of each set of cutting components. In addition, the long part of the U-shaped rod is also equipped with a scale. By adjusting the spacing of the cutting components according to the scale, gypsum board of the required size can be cut out. The operation is simple and efficient.

[0010] 2. The cutting groove on the cutting tool holder provided in this application allows the cutting tool to be housed in the cutting groove, thereby avoiding the exposure of the blade and causing injury accidents; the cutting tool holder of the cutting assembly is also equipped with an auxiliary roller through a connecting shaft. During the cutting process, the auxiliary roller can abut against the end face of the gypsum board, thereby facilitating the movement and cutting of the cutting part along the gypsum board.

[0011] 3. By adjusting the tightness of the first wing screw, the guide bracket can rotate relative to the U-shaped frame under the cooperation of the positioning groove and the positioning plate, and under the guidance of the quarter arc groove. This allows the guide bracket and the U-shaped frame to be adjusted from a vertical state to a parallel state, so that the guide bracket can be stored in the U-shaped frame, thus facilitating the carrying of this application. Attached Figure Description

[0012] Figure 1 This is the front view of the present utility model.

[0013] Figure 2 This is a first-person perspective stereoscopic view of the present invention.

[0014] Figure 3 This is an enlarged view of region A in the first-person perspective stereoscopic view of this utility model.

[0015] Figure 4 This is an enlarged view of region B in the first-person perspective stereoscopic view of this utility model.

[0016] Figure 5 This is a partial stereoscopic view of the present invention from a second perspective.

[0017] Figure 6This is an enlarged view of region C in the second-view partial stereoscopic view of this utility model.

[0018] Figure 7 This is a partial three-dimensional sectional view of the present invention from a third perspective.

[0019] Figure 8 This is a partial three-dimensional sectional view of the fourth perspective of this utility model.

[0020] Figure 9 This is a partial three-dimensional view from the fifth perspective of this utility model.

[0021] Figure 10 This is a partial three-dimensional sectional view from the sixth perspective of this utility model.

[0022] Figure 11 This is an enlarged view of region D in the sixth-angle partial stereoscopic sectional view of this utility model.

[0023] Figure 12 This is a perspective view of the present invention in conjunction with gypsum board.

[0024] Figure Labels

[0025] 1. Guide bracket, 2. Positioning block, 3. Positioning groove, 4. Quarter arc groove, 5. U-shaped frame, 6. Long rod, 7. Short rod, 8. Locking disc, 9. Sleeve, 10. First wing screw, 11. First clamping element, 12. Scale, 13. Cutting element, 14. Mounting sleeve, 15. Tool holder, 16. Tool groove, 17. Cutting blade, 18. Leaf spring, 19. Clamping groove, 20. Connecting hole, 21. Second wing screw, 22. Second clamping element, 23. Connecting shaft, 24. Auxiliary roller, 25. First through groove, 26. First damping shaft, 27. First pressure plate, 28. First column, 29. Second through groove, 30. Second damping shaft, 31. Second pressure plate, 32. Second column, 33. Power handle, 34. Mounting groove, 35. Pulley, 36. Plasterboard. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-12 The specific embodiments of this utility model will be described in further detail.

[0027] In the first embodiment, the technical solution is that, during use, multiple pieces of gypsum board 36 can be cut at once by adjusting the spacing of each group of cutting components. Furthermore, the long rod 6 of the U-shaped rod is equipped with a scale 12 (the scale 12 has corresponding graduations, which will not be specifically described in this application). Adjusting the spacing of the cutting components according to the scale 12 allows for the cutting of gypsum board 36 of the required size, making the operation simple and efficient. The cutting groove 16 on the through-groove knife holder 15 of the cutting component 13 allows the cutting blade 17 to be housed within the cutting groove, thus preventing exposed blades from causing injury. The knife holder 15 of the cutting component is also equipped with an auxiliary roller 24 via a connecting shaft 23. During cutting, the auxiliary roller 24 can abut against the end face of the gypsum board 36, facilitating the movement and cutting of the cutting component 13 along the gypsum board 36. By adjusting the tightness of the first wing screw 10, the guide bracket 1 can rotate relative to the U-shaped frame 5 under the cooperation of the positioning groove 3 and the positioning plate, and under the guidance of the quarter-arc groove 4. This allows the guide bracket 1 and the U-shaped frame 5 to be adjusted from a perpendicular state to a parallel state, so that the guide bracket 1 can be stored inside the U-shaped frame, thus facilitating the carrying of this application. The U-shaped frame 5 is integrally formed by two long rods 6 and one short rod 7.

[0028] Example 2, based on Example 1, specifically, in the use of this application, as shown in the accompanying drawings. Figure 1 As shown in the diagram, the U-shaped frame 5 is installed perpendicularly to the guide bracket 1, and the first wing nut and the first clamping member 11 are locked to ensure the fastening and stability of this application. Furthermore, during use, the cutting pieces 13 on the two long rods 6 should be used in pairs. Then, according to the required size of the gypsum board 36 to be cut, the spacing of each pair of cutting pieces 13 is adjusted using the scale 12 on the support rod, so that the spacing of each pair of adjusting pieces corresponds to the required size of the gypsum board 36 to be cut, thereby allowing multiple gypsum boards 36 that meet the requirements to be cut at once. (See the attached diagram in the specification.) Figure 12 As shown, during cutting, the end of the guide bracket 1 with the pulley 35 is placed on the upper end of the plasterboard 36, and the cutting piece 13 corresponds to the right end of the plasterboard 36. Then, the guide bracket 1 is pushed to the left. To facilitate pushing the guide bracket, an assist handle 33 is arranged. With the assistance of the assist handle 33 and the pulley 35 in the mounting groove 34, the guide bracket 1 moves to the left along the plasterboard 36. Consequently, the U-shaped frame 5 and the cutting piece 13 on it also move to the left. During the leftward movement, the auxiliary roller 24 of the cutting piece 13 first rolls and engages with the front and rear ends of the plasterboard 36 respectively, which further facilitates the movement of this application along the plasterboard 36. Then, the cutting blade 17 of the cutting piece 13 cuts into the plasterboard 36 to perform the cutting operation.

[0029] In Embodiment 3, based on Embodiment 2, the cutting component 13 of this application is fitted onto the long rod 6 via a mounting sleeve 14. To ensure that the mounting sleeve 14 can be stably fixed onto the long rod 6, the second pressure plate 31 of the second clamping component 22 should abut against the end face of the mounting sleeve 14. Under the action of the second damping shaft 30, the second pressure plate 31 will not easily flip over automatically. This ensures that the second column 32 of the second through groove 29 can press against the long rod 6, thereby ensuring that the cutting component 13 can be firmly fixed onto the long rod 6. When the distance of the cutting piece 13 needs to be adjusted according to the size of the gypsum board 36, manually flip the end face of the second pressure plate 31 away from the mounting sleeve 14. Then the second pressure plate 31 will rotate around the second damping shaft 30. At the same time, the second column 32 will also rotate synchronously and release the pressure on the end face of the long rod 6. At this time, the sliding sleeve can move along the long rod 6 to adjust the cutting piece 13. After the adjustment is completed, manually flip the second pressure plate 31 again to reset it, so that the second pressure plate 31 is pressed against the end face of the mounting sleeve 14. Then the second column 32 will also press against the long rod 6, so that the cutting piece 13 is stably fixed on the long rod 6.

[0030] In Embodiment Four, based on Embodiment Two, the blade holder 15 of the cutting component 13 is fixedly connected to the side wall of the mounting sleeve 14. The blade holder 15 has a blade groove 16 for holding the cutting blade 17. Placing the cutting blade 17 in the blade groove 16 prevents large-area exposure of the cutting blade 17 and avoids injury to the operator. Furthermore, to ensure the cutting blade 17 can be securely fastened in the blade groove 16, a leaf spring 18 and a second wing screw 21 are provided. After placing the blade in the blade groove 16, tightening the second wing screw 21 in the connecting hole 20 causes the second wing screw 21 to press the leaf spring 18 into the pressing groove 19, thereby pressing the cutting blade 17. Loosening the second wing screw 21 causes the leaf spring 18 to automatically spring back, allowing the cutting blade 17 to be removed from the blade groove 16.

[0031] In Example 5, based on Example 1, the two locking discs 8 in this application are threadedly connected with first wing screws 10 that are inserted into quarter-arc grooves 4. When this application needs to be stored for easy carrying, simply loosen the first screw on the locking disc 8. At this time, the locking disc 8 can rotate relative to the positioning groove 3, which in turn allows the guide bracket 1 to rotate relative to the U-shaped frame 5. Furthermore, due to the cooperation and guidance between the quarter-arc groove 4 on the positioning block 2 and the first wing screw 10, the guide bracket 1 can be quickly rotated to make it parallel and coincident with the U-shaped frame 5, thereby completing the storage. After that, tighten the first wing screw 10.

[0032] When only the long rod 6 needs to move relative to the sleeve 9, the first pressure plate 27 of the first clamping member 11 can be manually flipped away from the sleeve 9. As the first pressure plate 27 is flipped, the first column 28 at the first through slot 25 will also rotate around the first damping axis 26, thereby releasing the second column 32 from the clamping state of the long rod 6, and the long rod 6 can move relative to the sleeve 9. Correspondingly, if the first pressure plate 27 is manually flipped back to its original position so that it is pressed against the end face of the sleeve 9 again, the second column 32 will also be reset around the first damping axis 26 and pressed against the long rod 6, thereby restricting the movement of the long rod 6 relative to the sleeve 9 to ensure the normal use of this application.

Claims

1. A gypsum board cutter, comprising a guide bracket (1), characterized in that, The guide bracket (1) is integrally provided with a positioning block (2). The positioning block (2) has positioning grooves (3) arranged coaxially at its front and rear ends. The positioning block (2) has two quarter-arc grooves (4) arranged symmetrically about its axis. The guide bracket (1) is movably fitted with a U-shaped frame (5). The U-shaped frame (5) is integrally formed by two long rods (6) and one short rod (7). Each positioning groove (3) is coaxially inserted with a locking disc (8). Each locking disc (8) is integrally provided with a retainer. (9) The sleeve (9) is sleeved one-to-one with the long rod (6). There are two locking discs (8) and they are connected by the first butterfly screw (10). The first butterfly screw (10) is inserted one-to-one with the quarter arc groove (4). Each sleeve (9) is provided with a first clamping member (11) that works with the long rod (6) on its corresponding side. Each long rod (6) is provided with a scale (12) on its outer surface. Each long rod (6) is fitted with multiple sets of cutting parts (13).

2. The gypsum board cutter according to claim 1, characterized in that, Each of the cutting components (13) includes a mounting sleeve (14) that slides and fits with the long rod (6). A knife holder (15) is fixedly connected to the side wall of the mounting sleeve (14). A knife groove (16) is provided on the knife holder (15). A cutting knife (17) is placed in the knife groove (16). A leaf spring (18) that abuts against the cutting knife (17) is fixedly connected to the knife holder (15). A clamping groove (19) corresponding to the leaf spring (18) is provided on the knife holder (15). A connecting hole (20) corresponding to the clamping groove (19) is provided on the leaf spring (18). A second wing screw (21) that is threadedly connected to the knife holder (15) is inserted into the connecting hole (20). A second clamping component (22) that works with the long rod (6) is arranged on the mounting sleeve (14). A connecting shaft (23) is fixedly connected to the side wall of the knife holder (15). Auxiliary rollers (24) are rotatably connected to both ends of the connecting shaft (23).

3. The gypsum board cutter according to claim 1, characterized in that, The first clamping member (11) includes a first through groove (25) opened on the sleeve (9), and a first damping shaft (26) corresponding to the first through groove (25) is fixedly connected on the sleeve (9). The first damping shaft (26) is hinged to a first pressure plate (27), and the first pressure plate (27) is integrally arranged with a first column (28) corresponding to the first through groove (25) and abutting against the long rod (6).

4. The gypsum board cutter according to claim 2, characterized in that, The second clamping member (22) includes a second through groove (29) opened on the mounting sleeve (14), a second damping shaft (30) corresponding to the second through groove (29) is fixedly connected to the mounting sleeve (14), the second damping shaft (30) is hinged to a second pressure plate (31), and the second pressure plate (31) is integrally arranged with a second column (32) corresponding to the second through groove (29) and abutting against the long rod (6).

5. A gypsum board cutter according to claim 1, characterized in that, The guide bracket (1) is threadedly connected to an assist handle (33) at its upper end, and the guide bracket (1) is provided with an installation groove (34) arranged along its length at its lower end. The inner wall of the installation groove (34) is rotatably connected to several pulleys (35) evenly distributed along its length.

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