Edge grinding device suitable for metal signboard
By designing a limiting frame and bolt structure, the problems of displacement and unilateral edge grinding during the edge grinding process of metal signs were solved, enabling simultaneous edge grinding on both sides of the metal signs and improving edge grinding efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-03-06
AI Technical Summary
Metal signs are prone to displacement during the edge grinding process due to the grinding force, requiring repositioning. Furthermore, only one side can be ground at a time, resulting in low work efficiency.
The system employs a limiting frame and bolt structure. The limiting frame restricts the movement of the metal sign, while an electric motor drives a rotating block and sandpaper to simultaneously grind the edges of both sides of the sign, thus improving grinding efficiency.
It achieves stable positioning of metal signs during the edge grinding process, and can grind both sides simultaneously, thus improving work efficiency.
Smart Images
Figure CN223971404U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of metal sign processing technology, and in particular to an edge grinding device suitable for metal signs. Background Technology
[0002] Metal signs are a product that integrates planning, architecture, space, sculpture, logic, color, aesthetics, and material combination. They are not simply words or signs; they are unique works of art that blend with the environment. During the processing of metal signs, edge grinding is required to ensure the smoothness of the surface. However, during the edge grinding process, metal signs are easily displaced due to the grinding force, requiring readjustment of the sign's position. Furthermore, only one side of the metal sign can be ground at a time, resulting in low work efficiency. Utility Model Content
[0003] To address the issues mentioned above, where metal signs are easily displaced during the edge grinding process due to the grinding force, requiring readjustment of the sign's position and resulting in low efficiency as only one side of the metal sign can be ground at a time, this application provides an edge grinding device suitable for metal signs.
[0004] The edge-grinding device for metal signs provided in this application adopts the following technical solution:
[0005] An edge-grinding device for metal signs includes a base and a limiting frame. The limiting frame is installed on the top of the base. Support members are welded to both sides of the limiting frame. Movable blocks are movably disposed at the bottom of each of the two support members. The tops of the two movable blocks are respectively attached to the inner top walls of the two support members. Bolts are threaded through one side of each of the two support members. The two bolts are movably connected to the movable blocks through the two limiting members. Electric motors are fixedly installed on one side of each of the two movable blocks. Circular holes are opened at the tops of both sides of the two limiting frames. Rotating blocks are welded to the ends of the power shafts of the two electric motors. The two rotating blocks rotate through the two circular holes respectively. Sandpaper is adhered to one side of each of the two rotating blocks.
[0006] Preferably, the limiting member consists of a cap and an abutment block, the abutment block is welded to one end of the bolt, the abutment block is located inside the cap, and one side of the cap is welded to one side of the movable block.
[0007] Preferably, the limiting frame has V-shaped grooves on both the front and back sides, and the two V-shaped grooves correspond to each other.
[0008] Preferably, the base consists of a base plate, two connecting rods and four screws. The two connecting rods are respectively welded to the two ends of the top of the base plate, and the opposite sides of the two connecting rods are respectively welded to the two sides of the limiting frame. The four screws are respectively threaded through the four corners of the base plate.
[0009] In summary, this application includes the following beneficial technical effects: By providing a limiting frame and two bolts, when a metal sign is inserted into the limiting frame, the limiting frame can limit the metal sign. Simultaneously, rotating the two bolts causes two movable blocks to move closer together, which in turn drives two electric motors and two rotating blocks to move closer together. Then, the power shafts of the two electric motors drive the two rotating blocks to rotate at high speed, which in turn drives two pieces of sandpaper to rotate at high speed. When the metal sign is then slowly and vertically inserted into the limiting frame, the two pieces of sandpaper can grind the edges of the metal sign. At the same time, the two rotating blocks can further limit the metal sign. Compared with the prior art, this application has the effect of limiting the metal sign and can grind the edges of both sides of the metal sign simultaneously in one go, thus improving the grinding efficiency. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the application.
[0011] Figure 2 This is a top view structural diagram of Embodiment 1 of the application.
[0012] Figure 3 This is a partial structural diagram of Embodiment 1 of the application.
[0013] Figure 4 This is a schematic diagram showing the disassembled structure of the bolt, cap, and abutment block in Embodiment 1 of the application.
[0014] Explanation of reference numerals in the attached drawings: 1. Base; 11. Base plate; 12. Connecting rod; 13. Screw; 2. Limiting frame; 31. Support; 32. Movable block; 33. Bolt; 34. Electric motor; 35. Rotating block; 36. Sandpaper; 4. Limiting component; 41. Cap; 42. Abutment block; 5. V-groove. Detailed Implementation
[0015] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 This application will be described in further detail.
[0016] Example 1:
[0017] An edge-grinding device suitable for metal signs, as shown in the reference. Figure 1-4The system includes a base 1 and a limiting frame 2. The limiting frame 2 is mounted on top of the base 1, and the base 1 supports the limiting frame 2. When a metal sign is inserted into the limiting frame 2, the limiting frame 2 limits the metal sign. V-shaped grooves 5 are provided on both the front and back sides of the limiting frame 2, and the two V-shaped grooves 5 correspond to each other, facilitating the removal of the metal sign inserted into the limiting frame 2. Support members 31 are welded to both sides of the limiting frame 2. Movable blocks 32 are movably installed at the bottom of each support member 31, and the tops of the two movable blocks 32 respectively fit against the inner top walls of the two support members 31. Bolts 33 are threaded through one side of each support member 31. The threads of the two bolts 33 are self-locking. The self-locking condition depends on the helix angle, the coefficient of friction, and the load applied. The self-locking condition can be calculated using the following formula: Self-locking condition = Coefficient of friction × tan(helix angle) ≥ 1. When this condition is met, the threaded connection is self-locking. The above content refers to existing technology. In practical applications, the corresponding self-locking angle can be set according to the friction coefficient of the material, which will not be elaborated here. The two bolts 33 are respectively connected to the movable block 32 through two limiting members 4. The limiting member 4 consists of a cap 41 and a contact block 42. The contact block 42 is welded to one end of the bolt 33 and is located inside the cap 41. One side of the cap 41 is welded to one side of the movable block 32. In this way, when the bolt 33 is rotated, the movable block 32 can be driven to slide at the bottom of the support member 31. An electric motor 34 is fixedly installed on one side of each of the two movable blocks 32. Both electric motors 34 are electrically connected to an external power source through an external switch. The top of both sides of the two limiting frames 2 are provided with round holes. The ends of the power shafts of the two electric motors 34 are welded to... There are two rotating blocks 35, which rotate through two round holes respectively. Sandpaper 36 is attached to one side of each of the two rotating blocks 35. When the two bolts 33 are rotated, the two movable blocks 32 move closer to each other, and the two movable blocks 32 drive the two electric motors 34 and the two rotating blocks 35 to move closer to each other, ensuring that when the metal sign is inserted into the limiting frame 2, its two sides can contact the two sandpapers 36. After stopping the adjustment of the position of the two movable blocks 32, the two electric motors 34 are started by using an external switch, so that the power shafts of the two electric motors 34 drive the two rotating blocks 35 to rotate at high speed. The two rotating blocks 35 drive the two sandpapers 36 to rotate at high speed. Then, when the metal sign is slowly inserted vertically into the limiting frame 2, the two sandpapers 36 can grind the edges of the metal sign.
[0018] Reference Figure 1 and Figure 2The base 1 consists of a base plate 11, two connecting rods 12 and four screws 13. The two connecting rods 12 are welded to the top two ends of the base plate 11 respectively. The opposite sides of the two connecting rods 12 are welded to the two sides of the limiting frame 2 respectively. In this way, the base plate 11 can support the limiting frame 2. The four screws 13 are threaded through the four corners of the base plate 11 respectively. By rotating the four screws 13 to connect with the external workbench surface, the base plate 11 can be installed on the external workbench.
[0019] The foregoing description, with reference to preferred embodiments, illustrates an exemplary implementation of an edge-grinding device for metal signs provided by this disclosure. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the spirit of this disclosure, and various combinations can be made to the various technical features and structures proposed in this disclosure without exceeding the protection scope of this disclosure, the protection scope of which is determined by the appended claims.
Claims
1. An edge grinding device suitable for metal signboard, comprising a base (1) and a limiting frame (2), characterized in that, The limiting frame (2) is installed at the top of the base (1), both sides of the limiting frame (2) are welded with support pieces (31), the bottom of the two support pieces (31) is movably provided with movable blocks (32), the top end of the two movable blocks (32) is respectively attached to the inner top wall of the two support pieces (31), one side of the two support pieces (31) is threaded with a bolt (33), the two bolts (33) are movably connected with the movable blocks (32) through two limiting pieces (4), one side of the two movable blocks (32) is fixedly installed with an electric motor (34), the top end of both sides of the two limiting frames (2) is provided with a round hole, the power shaft end of the two electric motors (34) is welded with a rotating block (35), the two rotating blocks (35) are respectively rotatably penetrated through the two round holes, one side of the two rotating blocks (35) is bonded with sandpaper (36).
2. An edging device for metal signs as claimed in claim 1, characterized in that: The limiting piece (4) is composed of a sleeve cap (41) and a contact block (42), the contact block (42) is welded at one end of the bolt (33), the contact block (42) is located in the sleeve cap (41), one side of the sleeve cap (41) is welded with one side of the movable block (32).
3. An edging device for metal signs as defined in claim 1, wherein: The front side and the back side of the limiting frame (2) are provided with V-shaped grooves (5), the two V-shaped grooves (5) correspond to each other.
4. An edging device for metal signs as defined in claim 1, wherein: The base (1) is composed of a bottom plate (11), two connecting rods (12) and four screws (13), the two connecting rods (12) are respectively welded at both ends of the top of the bottom plate (11), the opposite sides of the two connecting rods (12) are respectively welded with both sides of the limiting frame (2), and the four screws (13) are respectively threaded through the four corners of the bottom plate (11).