Anti-cracking plate cutting device

Abstract

The utility model discloses an anti-cracking plate cutting device which comprises a cutting machine base, supporting columns are fixed to the top face of the cutting machine base, supporting plates are fixed to the two supporting columns located on the same side, guide columns are fixed between the supporting plates on the left side and the right side, sliding blocks are installed on the two guide columns, and driving mechanisms are installed on the supporting plates. A connecting plate is fixed to the bottom of the sliding block, a mounting plate is fixed to the bottom of the connecting plate, a cutting motor is fixed to the bottom face of the mounting plate and provided with a cutter, and two pressing mechanisms are fixed to the mounting plate. Each pressing mechanism comprises a pressing air cylinder, a pressing roller frame is fixed to the pressing air cylinder, a pressing roller is installed on the pressing roller frame, and a cutting containing table is arranged on the top face of the cutting machine base. The two pressing rollers can rotate and press tightly during cutting, sliding of the plates can be reduced through cooperation with the anti-skid cutting placement table, and cracking is prevented; when the size of the plate is changed after multiple times of cutting, pressing, fixing and cutting are not affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of plate cutting, and in particular relates to a plate cutting device that prevents cracking. Background Art

[0002] Cutting the sheet metal is a common process in sheet metal processing, and there are many cutting methods, such as manual cutting, semi-automatic cutting machine cutting, and CNC cutting machine cutting.

[0003] When cutting boards with existing wood cutting machines, the boards are prone to deviation, which reduces the cutting accuracy and quality of the boards. In severe cases, the boards may crack, which wastes production costs and reduces production efficiency. For this reason, a Chinese patent for a continuous wood cutting machine that prevents wood from cracking (CN202123083923.2) proposes "using multiple hydraulic cylinders in conjunction with a pressure plate to fix the boards, and then using a linear motor to drive the saw blade to cut the boards, thereby avoiding the deviation of the boards during the cutting process and improving the cutting accuracy and quality".

[0004] However, the above device can only cut plates of specific sizes through multiple hydraulic cylinders and pressure plates. Since most plates need to be cut multiple times, after the plates are cut, when the size of the plates becomes smaller, the above method cannot be used to fix them again through the hydraulic cylinders and pressure plates, and other equipment needs to be replaced, which is very inconvenient. Utility Model Content

[0005] The utility model provides a plate cutting device that prevents cracking, which can realize the rotation and pressing of two pressure rollers during cutting, and can reduce the sliding of the plate with the anti-skid cutting placement table to prevent cracking; when the size of the plate changes due to multiple cutting, it will not affect the pressing and fixing cutting, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crack-proof plate cutting device, comprising a cutting machine base, support columns are fixed at the four corners of the top surface of the cutting machine base, support plates are fixed on the tops of the two support columns on the same side, guide columns are fixed between the support plates on the left and right sides, and sliders that can slide along them are installed on the two guide columns, and a driving mechanism that can drive the slider to slide left and right is installed on the support plate; a connecting plate is fixed to the bottom of the slider, a mounting plate is fixed to the bottom of the connecting plate, a cutting motor is fixed to the bottom surface of the mounting plate, a cutting knife is installed at the output end of the cutting motor, and two groups of clamping mechanisms located on both sides of the cutting knife are fixed on the mounting plate; the clamping mechanisms all include a clamping cylinder, a pressure roller frame is fixed after the piston rod of the clamping cylinder passes through the mounting plate, and a pressure roller is installed on the pressure roller frame, and the rolling direction of the pressure roller is consistent with the cutting direction of the cutting knife, and a cutting placement table is provided on the top surface of the cutting machine base.

[0007] Preferably, the driving mechanism includes a driving motor fixed on one side of the support plate, a screw is rotatably installed between the two support plates, the output shaft of the driving motor is fixedly connected to the screw via a coupling, the screw passes through the slider and is connected to it via a screw nut.

[0008] Preferably, the slider is provided with a linear bearing which is linearly slidably connected to the guide column.

[0009] Preferably, a positioning rod is fixed on the pressure roller frame, and the positioning rod passes through the mounting plate.

[0010] Preferably, the surface of the cutting and placing table is a non-slip structure and is provided with a cutting groove along the cutting direction.

[0011] Preferably, the bottom surface of the cutting machine seat is supported by four supporting legs, and shock-absorbing pads are fixed to the bottom ends of the supporting legs.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The two pressing rollers can rotate and press tightly during cutting, and the anti-slip cutting and placing table can reduce the sliding of the plate and prevent cracking.

[0014] 2. When the size of the plate changes after multiple cutting, it will not affect the clamping and fixing cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the top view of the driving mechanism of the utility model;

[0017] Figure 3 It is a partial side view structural schematic diagram of the utility model;

[0018] Figure 4 It is a schematic diagram of the top view of the cutting placement table and the cutting groove of the utility model.

[0019] In the figure: 1. cutting machine base; 2. support column; 3. support plate; 4. guide column; 5. slider; 6. connecting plate; 7. mounting plate; 8. cutting motor; 9. cutting knife; 10. clamping cylinder; 11. pressure roller frame; 12. pressure roller; 13. cutting placement table; 14. driving motor; 15. lead screw; 16. lead screw nut; 17. linear bearing; 18. positioning rod; 19. cutting groove; 20. supporting leg; 21. shock-absorbing pad. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides a plate cutting device for preventing cracking, including a cutting machine base 1, wherein support columns 2 are fixed at the four corners of the top surface of the cutting machine base 1, and support plates 3 are fixed on the tops of the two support columns 2 on the same side, and guide columns 4 are fixed between the support plates 3 on the left and right sides, and sliders 5 that can slide along the two guide columns 4 are installed, and a driving mechanism that can drive the sliders 5 to slide left and right is installed on the support plate 3; a connecting plate 6 is fixed at the bottom of the slider 5, and the bottom of the connecting plate 6 is fixed There is a mounting plate 7, a cutting motor 8 is fixed to the bottom surface of the mounting plate 7, a cutting knife 9 is installed at the output end of the cutting motor 8, and two sets of clamping mechanisms are fixed to the mounting plate 7 on both sides of the cutting knife 9; the clamping mechanisms include a clamping cylinder 10, and a pressure roller frame 11 is fixed after the piston rod of the clamping cylinder 10 passes through the mounting plate 7, and a pressure roller 12 is installed on the pressure roller frame 11, and the rolling direction of the pressure roller 12 is consistent with the cutting direction of the cutting knife 9, and a cutting placement table 13 is provided on the top surface of the cutting machine base 1 When cutting, the sheet is placed on the cutting and placing table 13, and the piston rod is extended and retracted by the pressing cylinder 10 to adjust the height of the pressing roller frame 11 and the pressing roller 12. First, the pressing rollers 12 on both sides are raised by the pressing cylinder 10. When the cutting knife 9 cuts the sheet from left to right, when the right pressing roller 12 completely exceeds the sheet and the cutting knife 9 does not cut the sheet, the pressing cylinder 10 on the right drives the pressing roller 12 to descend to the set position, so that the sheet is pressed and placed tightly against the cutting and placing table 13, and the driving mechanism causes the slider 5 to move from the left to the right. Moving to the right, when the left pressure roller 12 is located above the plate, the left clamping cylinder 10 drives the pressure roller 12 to also clamp the plate, and then the cutting motor 8 drives the cutting knife 9 to cooperate with the cutting groove 19 to complete the cutting from left to right. Since the two pressure rollers 12 rotate and clamp during cutting, the anti-slip cutting placement table 13 can reduce the sliding of the plate and prevent cracking. When the plate needs to be cut again, it is only necessary to adjust the position of the part to be cut so that the line to be cut coincides with the cutting groove 19, and then the cutting can be completed by the same principle.

[0022] Specifically, the driving mechanism includes a driving motor 14 fixed to one side of the support plate 3, a screw rod 15 is rotatably installed between the two support plates 3, the output shaft of the driving motor 14 is fixedly connected to the screw rod 15 through a coupling, the screw rod 15 passes through the slider 5, and is connected to the slider 5 through a screw nut 16; in this embodiment, the screw rod 15 is driven to rotate by the driving motor 14, and the slider 5 moves left and right through the action of the screw nut 16.

[0023] Specifically, the slider 5 is provided with a linear bearing 17 which is linearly slidably connected to the guide post 4; in this embodiment, the friction between the slider 5 and the guide post 4 can be reduced when the slider 5 slides left and right, thereby improving the transmission accuracy.

[0024] Specifically, a positioning rod 18 is fixed on the pressure roller frame 11, and the positioning rod 18 passes through the mounting plate 7; in this embodiment, the stability of the pressure roller frame 11 and the pressure roller 12 during lifting and lowering, as well as the overall firmness of the pressure roller mechanism are improved.

[0025] Specifically, the surface of the cutting and placing table 13 is a non-slip structure and is provided with a cutting groove 19 along the cutting direction; in this embodiment, the friction between the cutting and placing table 13 and the plate is enhanced to stabilize and prevent slipping under pressure.

[0026] Specifically, the bottom surface of the cutting machine base 1 is supported by four supporting legs 20, and shock-absorbing pads 21 are fixed to the bottom ends of the supporting legs 20; in this embodiment, the vibration of the entire device during cutting is reduced, and the cutting accuracy is improved.

[0027] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0028] Working principle: When cutting, place the sheet on the cutting and placing table 13, and use the clamping cylinder 10 to drive the piston rod to extend and retract, thereby adjusting the height of the pressure roller frame 11 and the pressure roller 12. First, use the clamping cylinder 10 to raise the pressure rollers 12 on both sides. When the cutting knife 9 cuts the sheet from left to right, when the right pressure roller 12 completely exceeds the sheet and the cutting knife 9 does not cut the sheet, the right pressure cylinder 10 drives the pressure roller 12 to drop to the set position, so that the sheet is pressed tightly against the cutting and placing table 13, and the driving motor 14 drives the screw rod 15 to rotate, and the screw rod The nut 16 causes the slider 5 to move from left to right. When the left pressure roller 12 is located above the plate, the left clamping cylinder 10 drives the pressure roller 12 to also clamp the plate, and then the cutting motor 8 drives the cutting knife 9 to cooperate with the cutting groove 19 to complete the cutting from left to right. Since the two pressure rollers 12 rotate and clamp during cutting, the anti-slip cutting placement table 13 can reduce the sliding of the plate and prevent cracking. When the plate needs to be cut again, it is only necessary to adjust the position of the part to be cut so that the line to be cut coincides with the cutting groove 19, and then the cutting can be completed by the same principle.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crack-proof plate cutting device, comprising a cutting machine base (1), characterized in that: The four corners of the top surface of the cutting machine base (1) are fixed with support columns (2); the tops of the two support columns (2) on the same side are fixed with support plates (3); guide columns (4) are fixed between the support plates (3) on the left and right sides; and the two guide columns (4) are provided with sliders (5) that can slide along them; the support plates (3) are provided with a driving mechanism that can drive the sliders (5) to slide left and right; a connecting plate (6) is fixed at the bottom of the slider (5); a mounting plate (7) is fixed at the bottom of the connecting plate (6); and the bottom surface of the mounting plate (7) is fixed with a A cutting motor (8) is provided, and a cutting knife (9) is installed at the output end of the cutting motor (8). The mounting plate (7) is fixed with two sets of clamping mechanisms located on both sides of the cutting knife (9); the clamping mechanisms each include a clamping cylinder (10), and a piston rod of the clamping cylinder (10) passes through the mounting plate (7) and is fixed with a pressure roller frame (11), and a pressure roller (12) is installed on the pressure roller frame (11), and the rolling direction of the pressure roller (12) is consistent with the cutting direction of the cutting knife (9), and a cutting placement table (13) is provided on the top surface of the cutting machine base (1).

2. The anti-cracking plate cutting device according to claim 1, characterized in that: The driving mechanism comprises a driving motor (14) fixed on one side of the supporting plate (3); a screw rod (15) is rotatably mounted between the two supporting plates (3); an output shaft of the driving motor (14) is fixedly connected to the screw rod (15) via a coupling; the screw rod (15) passes through the slider (5) and is transmission-connected thereto via a screw nut (16).

3. The anti-cracking plate cutting device according to claim 1, characterized in that: The slide block (5) is provided with a linear bearing (17) which is linearly slidably connected to the guide column (4).

4. The anti-cracking plate cutting device according to claim 1, characterized in that: A positioning rod (18) is fixed on each of the pressure roller frames (11), and the positioning rod (18) passes through the mounting plate (7).

5. The anti-cracking plate cutting device according to claim 1, characterized in that: The surface of the cutting and placing table (13) is a non-slip structure and is provided with a cutting groove (19) along the cutting direction.

6. The anti-cracking plate cutting device according to claim 1, characterized in that: The bottom surface of the cutting machine base (1) is supported by four supporting legs (20), and the bottom ends of the supporting legs (20) are all fixed with shock-absorbing pads (21).

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