Signboard cutting device with fixing structure
By designing a sign-cutting device with a fixed structure, and utilizing a combination of a U-shaped frame and a detachable support frame, the problem of inconvenient cleaning of the saw blades was solved, and the precision and stability of laser cutting were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-03-17
AI Technical Summary
The saw blades under existing laser cutting machines accumulate iron slag and dust after prolonged use, affecting cutting accuracy and stability, and are inconvenient to clean.
Design a sign cutting device with a fixed structure, including a U-shaped frame and a detachable support frame. The combination of the U-shaped frame and the support frame facilitates the cleaning and replacement of the saw blades. The cutting operation is performed using a three-axis gantry robot and a PLC control system.
It enables convenient cleaning and replacement of the saw blade, improves cutting accuracy and stability, and simplifies the operation process.
Smart Images

Figure CN223997589U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sign cutting technology, specifically a sign cutting device with a fixed structure. Background Technology
[0002] The serrated blade beneath a laser cutting machine is actually part of the laser cutting work platform, commonly referred to as the laser cutting work platform. Its main function is to support and fix the material to be cut, ensuring that the material does not move or deform during the cutting process, thereby improving cutting accuracy and efficiency. However, after prolonged use, a large amount of iron filings and dust accumulates on the serrated blade beneath the machine tool. These impurities affect the cutting accuracy and quality. Specifically, the iron filings and dust on the serrated blade can cause uneven placement of the sheet material, resulting in vibration during cutting, which in turn affects the stability of the cutting process and may even trigger limit alarms.
[0003] Existing laser cutting platforms are integrated with the machine tool bed, meaning the saw blades cannot be easily removed from inside the machine tool. Cleaning the saw blades requires climbing onto the machine tool surface, which is inconvenient due to the small gaps between the saw blades and limited operating space above the machine tool. Therefore, we propose a sign-cutting device with a fixed structure. Utility Model Content
[0004] This utility model provides a sign cutting device with a fixed structure, which has the advantage of facilitating the cleaning of the saw blade and solves the problems mentioned in the background art.
[0005] The technical solution of this utility model is implemented as follows: a sign cutting device with a fixed structure includes a U-shaped frame, a support plate is provided at the bottom of the side of the U-shaped frame away from its opening, and first support legs are provided at the bottom of both ends of the U-shaped frame near its opening. A three-axis laser cutting device is provided at the top of the U-shaped frame. It also includes a fixed structure, which includes a bearing frame, a walking device is provided at the bottom of the bearing frame, and a number of serrated blades are provided at the top of the bearing frame. The bearing frame is placed inside the U-shaped frame from the opening.
[0006] Preferably, the load-bearing frame and the U-shaped frame are detachably connected.
[0007] Preferably, the walking device includes multiple second support legs disposed below the support frame, and each second support leg is provided with a caster wheel at its bottom.
[0008] Preferably, adjacent second support legs are connected by a reinforcing frame.
[0009] Preferably, the support frame is provided with multiple fixing rods.
[0010] Preferably, each saw blade is detachably mounted on a strip bar, with both ends of the strip bar placed on and detachably connected to the support frame.
[0011] Preferably, a control cabinet is provided at one end of the U-shaped frame, and a PLC control system is installed inside the control cabinet.
[0012] Preferably, the three-axis laser cutting device includes a three-axis gantry robot, and a laser cutter is provided on the free end of the three-axis gantry robot; one side of the three-axis gantry robot is installed on the side of the support plate, and the other side is installed on the top of the horizontal frame, the horizontal frame is located above the opening of the U-shaped frame, and the bottom of both ends of the horizontal frame are connected to the U-shaped frame through brackets.
[0013] Preferably, a strip mounting base is provided on the side of the support plate, and the side of the three-axis gantry robot away from the horizontal frame is set on the strip mounting base; both the strip mounting base and the horizontal frame extend to both ends of the control cabinet, and in the initial state, the laser cutter is positioned above the control cabinet.
[0014] Compared with the prior art, when using this utility model, if there is a lot of metal slag on the saw blade or when the saw blade needs to be replaced, the support frame can be removed from the U-shaped frame, which makes it easy to clean or replace the saw blade. After that, the support frame can be pushed back into the U-shaped frame for installation. The operation is simple and convenient. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the front structure of the present invention. Figure 1 .
[0017] Figure 2 This is a schematic diagram of the rear structure of the present invention. Figure 1 .
[0018] Figure 3 This is a schematic diagram of the front structure of the present invention. Figure 2 .
[0019] Figure 4 This is a schematic diagram of the rear structure of the present invention. Figure 2 .
[0020] Figure 5 This is a schematic diagram of the front structure of the present invention. Figure 3 .
[0021] Figure 6 This is a schematic diagram of the specific structure of the load-bearing frame of this utility model.
[0022] Figure 7 This is a schematic diagram of the specific installation structure of the saw blade of this utility model.
[0023] In the diagram: 1. U-shaped frame; 2. Serrated blade; 3. Bracket; 4. Horizontal frame; 5. Laser cutter; 6. Three-axis gantry robot; 7. Control cabinet; 8. Strip mounting base; 9. Support plate; 10. Connecting seat; 11. Bearing frame; 12. First support leg; 13. Second support leg; 14. Reinforcing frame; 15. Fixing rod; 16. Strip rod. Detailed Implementation
[0024] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0025] Reference Figures 1 to 7 This utility model provides a technical solution: a sign cutting device with a fixed structure, including a U-shaped frame 1, a support plate 9 at the bottom of the side of the U-shaped frame 1 away from its opening, and first support legs 12 at the bottom of the two ends of the U-shaped frame 1 near its opening. The first support legs 12 and the support plate 9 are supported on the ground. To increase stability, the first support legs 12 and the support plate 9 can be connected by a rod (such as...). Figure 1 Connected to (pointed to by the middle arrow A).
[0026] The top of the U-shaped frame 1 is equipped with a three-axis laser cutting device, which includes a three-axis gantry robot 6. The free end of the three-axis gantry robot 6 is equipped with a laser cutter 5. The three-axis gantry robot 6 has three degrees of freedom: horizontal forward and backward movement, left and right movement, and up and down movement. Therefore, the three-axis gantry robot 6 can drive the laser cutter 5 to any point on its working plane.
[0027] During installation, one side of the three-axis gantry robot 6 is mounted on the side of the support plate 9, and the other side of the three-axis gantry robot 6 is mounted on the top of the horizontal frame 4. For example... Figure 1 As shown, a strip mounting seat 8 is provided on the side of the support plate 9. The side of the three-axis gantry robot 6 away from the horizontal frame 4 is set on the strip mounting seat 8. The strip mounting seat 8 and the top of the U-shaped frame 1 are stepped, so that the height of the guide rail part and the linear drive module part of the three-axis gantry robot 6 does not exceed the top of the U-shaped frame 1.
[0028] It should be noted that the horizontal frame 4 should be positioned above the opening of the U-shaped frame 1, and the bottom ends of the horizontal frame 4 should be connected to the U-shaped frame 1 via brackets 3, thus ensuring the stability of the horizontal frame 4. Figure 1 and Figure 3 As shown, a control cabinet 7 is provided at one end of the U-shaped frame 1, and the strip mounting base 8 and the horizontal frame 4 extend to both ends of the control cabinet 7. In the initial state, the laser cutter 5 stays above the control cabinet 7.
[0029] In practical applications, the control cabinet 7 is equipped with a PLC control system. The PLC control system has been widely used as the control system of the machine tool. The PLC control system is connected to the three-axis gantry robot 6 and the laser cutter 5 respectively, so that the PLC control system controls the three-axis gantry robot 6 and the laser cutter 5 to move along the set path, thereby driving the laser cutter 5 to cut along the set path.
[0030] After the cutting is completed or when not in use, the laser cutter 5 is always positioned above the control cabinet 7 under the drive of the three-axis gantry robot 6. Since part of the U-shaped frame 1 is the cutting area, positioning the laser cutter 5 above the control cabinet 7 allows the U-shaped frame 1 to be fully exposed, which facilitates loading and unloading of materials.
[0031] Furthermore, in practical applications, the cutting platform of a laser cutting machine consists of multiple equally spaced saw blades. To ensure stable support for the saw blades, the saw blades 2 are mounted on a fixed structure, such as... Figure 2 As shown, the fixed structure includes a support frame 11, and a walking device is provided at the bottom of the support frame 11. The walking device includes multiple second support legs 13 arranged below the support frame 11. Each second support leg 13 is provided with a caster wheel at the bottom, so that the support frame 11 can be moved easily.
[0032] like Figure 1 and Figure 2 As shown, the top of the support frame 11 is provided with several serrated blades 2 arranged at intervals. When in use, the support frame 11 is placed into the U-shaped frame 1 through the opening. Of course, the support frame 11 can also be taken out from the opening.
[0033] The load-bearing frame 11 and the U-shaped frame 1 are detachably connected, such as... Figure 1 and Figure 5 As shown, multiple connecting seats 10 are provided on the top of the U-shaped frame 1, and each connecting seat 10 is equipped with a bolt. The side of the bearing frame 11 is provided with screw holes corresponding to the bolts. When the bearing frame 11 is placed inside the U-shaped frame 1, the screw holes are aligned with the bolts, and the bolts can be tightened into the screw holes. Of course, the bearing frame 11 and the U-shaped frame 1 can also be connected in other ways, such as by a locking mechanism.
[0034] Based on the above embodiments, it should be noted that the advantage of designing the support frame 11 to be easy to remove is that when a lot of metal slag is attached to the saw blade 2 or when the saw blade 2 needs to be replaced, the support frame 11 can be removed from the U-shaped frame 1, which makes it easy to clean the saw blade 2. After cleaning, the support frame 11 can be pushed back into the U-shaped frame 1 for installation.
[0035] It should also be noted that, such as Figure 2 As shown, there is a certain gap between the horizontal frame 4 and the opening of the U-shaped frame 1, which increases the size of the opening of the U-shaped frame 1. This makes it easier to pull the load-bearing frame 11 out of the U-shaped frame 1 and push the load-bearing frame 11 into the U-shaped frame 1.
[0036] Furthermore, such as Figure 4 and Figure 6 As shown, adjacent second support legs 13 are connected by a reinforcing frame 14, which can enhance the support strength of the second support legs 13; moreover, multiple fixing rods 15 are provided inside the load-bearing frame 11, and the fixing rods 15 can enhance the support strength of the load-bearing frame 11.
[0037] Based on the above embodiments, in order to facilitate the replacement of the saw blade 2, such as Figure 7 As shown, each saw blade 2 is detachably mounted on the strip rod 16. The saw blade 2 and the strip rod 16 are fastened together by multiple bolts. The two ends of the strip rod 16 are placed on the support frame 11 and are detachably connected to the support frame 11. The two ends of the strip rod 16 are also connected to the support frame 11 by bolts. When the saw blade 2 needs to be replaced, the strip rod 16 can be removed from the support frame 11 to replace the saw blade 2.
[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A signboard cutting device with fixed structure, comprising a U-shaped frame body (1), a support plate (9) is arranged at the bottom of the side away from the opening of the U-shaped frame body (1), and first support legs (12) are arranged at the bottoms of the two ends of the side close to the opening of the U-shaped frame body (1), characterized in that, The top of the U-shaped frame body (1) is provided with a three-axis laser cutting device; The fixing structure comprises a bearing frame (11), the bottom of the bearing frame (11) is provided with a walking device, the top of the bearing frame (11) is provided with a plurality of spaced sawtooth pieces (2), and the bearing frame (11) is arranged in the U-shaped frame body (1) from the opening.
2. The sign cutting apparatus having a fixed structure according to claim 1, wherein The bearing frame (11) and the U-shaped frame body (1) are detachably connected.
3. The sign cutting apparatus having a fixed structure of claim 1, wherein, The walking device comprises a plurality of second support legs (13) arranged below the bearing frame (11), and the bottom of each second support leg (13) is provided with a universal wheel.
4. The sign cutting apparatus having a fixture structure according to claim 3, wherein The adjacent second support legs (13) are connected through a reinforcing frame (14).
5. The sign cutting apparatus having a fixture structure according to claim 4, wherein The bearing frame (11) is provided with a plurality of fixing rods (15).
6. The sign cutting apparatus having a fixture structure according to claim 1, wherein Each sawtooth piece (2) is detachably mounted on a strip-shaped rod (16), and the two ends of the strip-shaped rod (16) are arranged on the bearing frame (11) and detachably connected with the bearing frame (11).
7. The sign cutting apparatus having a fixed structure according to any one of claims 1 to 6, wherein One end of the U-shaped frame body (1) is provided with a control cabinet (7), and the control cabinet (7) is provided with a PLC control system.
8. The sign cutting apparatus having a fixture structure according to claim 7, wherein The three-axis laser cutting device comprises a three-axis gantry robot (6), and the free end of the three-axis gantry robot (6) is provided with a laser cutter (5); One side of the three-axis gantry robot (6) is mounted on the side surface of a support plate (9), and the other side is mounted on the top of a horizontal frame (4), the horizontal frame (4) is located above the opening of the U-shaped frame body (1), and the two ends of the horizontal frame (4) are connected with the U-shaped frame body (1) through supports (3) respectively.
9. The sign cutting apparatus having a fixture structure according to claim 8, wherein The side surface of the support plate (9) is provided with a strip-shaped mounting seat (8), and the side of the three-axis gantry robot (6) away from the horizontal frame (4) is arranged on the strip-shaped mounting seat (8); The strip-shaped mounting seat (8) and the horizontal frame (4) extend to the two ends of the control cabinet (7), and in the initial state, the laser cutter (5) stays above the control cabinet (7).