Keyboard balancing pole
By applying PTFE cladding and precision wire straightening and bending processes on the keyboard balance rod, the existing keyboard balance rod materials are easily oxidized and processed in low efficiency, achieving higher wear resistance and longer service life, while improving the precision and process efficiency of the product.
Patent Information
- Application Number
- CN202411974234.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-03-28
AI Technical Summary
The existing keyboard balance rod materials are prone to oxidation and rust, with loud sound, high labor costs in the processing process, low work efficiency and poor product quality.
The main rod section and bent section of the keyboard balance rod are covered with a polytetrafluoroethylene cladding layer. The steel wire is straightened and covered through a high-speed straightening machine and an extruder. Combined with online fixed length cutting and automatic bending, the angle and degree of the balance rod are accurately controlled.
It improves the wear resistance and oxidation resistance of the keyboard balance rod, extends the service life, and simplifies the process and improves the precision and accuracy of the product.
Abstract
Description
Technical Field
[0001] The invention relates to a keyboard balance bar. Background Art
[0002] The keys of the keyboard are equipped with keycap stabilizers, i.e. balance bars, which are usually supported by bent iron wires to stabilize the keycaps. The raw material is coiled steel wire, which often needs to be straightened in advance and cut to the required length before processing. The existing balance bars have no coating on the surface and are processed by conventional "eight-claw machines". Since there is no coating on the surface, the surface is easily oxidized and rusted, making a loud noise when typing on the keyboard. In addition, the processing process has high labor costs, low work efficiency, and poor product quality. Summary of the invention
[0003] In order to solve the above technical problem, the present invention provides a keyboard balance bar.
[0004] The technical solution adopted in the present invention is: A keyboard balance bar comprises a main bar section, both ends of the main bar section are provided with bending sections, the main bar section and the bending section are an integrally formed structure, and the surfaces of the main bar section and the bending section are provided with a coating layer, the coating layer is a polytetrafluoroethylene coating layer, and the polytetrafluoroethylene coating layer comprises the following components and weight proportions: 10-15 parts of polytetrafluoroethylene, 3-8 parts of phenolic resin, 7-15 parts of toughening agent, 7-10 parts of inorganic nitride, 4-15 parts of solvent and 0.1-0.3 parts of antioxidant.
[0005] A method for preparing a keyboard balance bar comprises the following steps: In the first step, two groups of high-speed straightening machines are used to straighten the steel wire of automatic pay-off. Each group of straightening machines has eight top blocks, with an average of four blocks at each end. The arrangement and top position of each top block in each group of high-speed straightening machines are accurately positioned. When threading the steel wire, the end of the top block of the high-speed straightening machine is wrapped with 2mm thick wear-resistant aramid material to reduce the friction between the steel wire and the top block during the straightening process. After straightening, a certain length of steel wire is taken for testing using the through-hole measurement method; In the second step, the straightened steel wire passes through the extruder head for coating, the extruder main engine speed and traction speed are adjusted to control the amount of glue output, and the position of the extruder die and mandrel is adjusted to make the polytetrafluoroethylene coating layer uniform around the surface of the steel wire; The third step is to cut the straightened and coated steel wire to a fixed length online, and then put the cut-to-length steel wire into the automatic bending machine for bending; The fourth step is to automatically feed the material through the servo module to control the length of each section during the bending process, adjust the rotation angle of the bending knife to control the angle of each section of the balance bar, and control the degree of tilt and flatness of the balance bar by adjusting the angle of the bending knife itself.
[0006] As a further improvement of the above technical solution, the single-side thickness of the polytetrafluoroethylene coating layer is 0.04-0.06 mm.
[0007] As a further improvement of the above technical solution, the tilting degree and flatness of the keyboard balance bar are ≤0.15mm.
[0008] The advantages of the present invention are: The present invention coats the outer surface of the balance bar with a polytetrafluoroethylene coating layer, so that the keyboard balance bar has good wear resistance and oxidation resistance, and the service life of the keyboard balance bar is extended; by adopting the preparation method of the keyboard balance bar of the present invention, the process is simple and the product is precise and accurate. DETAILED DESCRIPTION
[0009] The embodiments described in the present invention are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1:
[0010] A keyboard balance bar comprises a main bar section, both ends of the main bar section are provided with bending sections, the main bar section and the bending section are an integrally formed structure, and the surfaces of the main bar section and the bending section are provided with a coating layer, the coating layer is a polytetrafluoroethylene coating layer, and the polytetrafluoroethylene coating layer comprises the following components and weight proportions: 10 parts of polytetrafluoroethylene, 3 parts of phenolic resin, 7 parts of toughening agent, 7 parts of inorganic nitride, 4 parts of solvent and 0.1 part of antioxidant.
[0011] A method for preparing a keyboard balance bar comprises the following steps: In the first step, two groups of high-speed straightening machines are used to straighten the steel wire of automatic pay-off. Each group of straightening machines has eight top blocks, with an average of four blocks at each end. The arrangement and top position of each top block in each group of high-speed straightening machines are accurately positioned. When threading the steel wire, the end of the top block of the high-speed straightening machine is wrapped with 2mm thick wear-resistant aramid material to reduce the friction between the steel wire and the top block during the straightening process. After straightening, a certain length of steel wire is taken for testing using the through-hole measurement method; In the second step, the straightened steel wire passes through the extruder head for coating, the extruder main engine speed and traction speed are adjusted to control the amount of glue output, and the position of the extruder die and mandrel is adjusted to make the polytetrafluoroethylene coating layer uniform around the surface of the steel wire; The third step is to cut the straightened and coated steel wire to a fixed length online, and then put the cut-to-length steel wire into the automatic bending machine for bending; The fourth step is to automatically feed the material through the servo module to control the length of each section during the bending process, adjust the rotation angle of the bending knife to control the angle of each section of the balance bar, and control the degree of tilt and flatness of the balance bar by adjusting the angle of the bending knife itself.
[0012] As a further improvement of the above technical solution, the single-side thickness of the polytetrafluoroethylene coating layer is 0.04-0.06 mm.
[0013] As a further improvement of the above technical solution, the tilting degree and flatness of the keyboard balance bar are ≤0.15mm. Embodiment 2:
[0014] A keyboard balance bar comprises a main bar section, both ends of the main bar section are provided with bending sections, the main bar section and the bending section are an integrally formed structure, and the surfaces of the main bar section and the bending section are provided with a coating layer, the coating layer is a polytetrafluoroethylene coating layer, and the polytetrafluoroethylene coating layer comprises the following components and weight proportions: 12 parts of polytetrafluoroethylene, 5 parts of phenolic resin, 11 parts of toughening agent, 8 parts of inorganic nitride, 10 parts of solvent and 0.2 parts of antioxidant.
[0015] A method for preparing a keyboard balance bar comprises the following steps: In the first step, two groups of high-speed straightening machines are used to straighten the steel wire of automatic pay-off. Each group of straightening machines has eight top blocks, with an average of four blocks at each end. The arrangement and top position of each top block in each group of high-speed straightening machines are accurately positioned. When threading the steel wire, the end of the top block of the high-speed straightening machine is wrapped with 2mm thick wear-resistant aramid material to reduce the friction between the steel wire and the top block during the straightening process. After straightening, a certain length of steel wire is taken for testing using the through-hole measurement method; In the second step, the straightened steel wire passes through the extruder head for coating, the extruder main engine speed and traction speed are adjusted to control the amount of glue output, and the position of the extruder die and mandrel is adjusted to make the polytetrafluoroethylene coating layer uniform around the surface of the steel wire; The third step is to cut the straightened and coated steel wire to a fixed length online, and then put the cut-to-length steel wire into the automatic bending machine for bending; The fourth step is to automatically feed the material through the servo module to control the length of each section during the bending process, adjust the rotation angle of the bending knife to control the angle of each section of the balance bar, and control the degree of tilt and flatness of the balance bar by adjusting the angle of the bending knife itself.
[0016] As a further improvement of the above technical solution, the single-side thickness of the polytetrafluoroethylene coating layer is 0.04-0.06 mm.
[0017] As a further improvement of the above technical solution, the tilting degree and flatness of the keyboard balance bar are ≤0.15mm. Embodiment three:
[0018] A keyboard balance bar comprises a main bar section, both ends of the main bar section are provided with bending sections, the main bar section and the bending section are an integrally formed structure, and the surfaces of the main bar section and the bending section are provided with a coating layer, the coating layer is a polytetrafluoroethylene coating layer, and the polytetrafluoroethylene coating layer comprises the following components and weight proportions: 15 parts of polytetrafluoroethylene, 8 parts of phenolic resin, 15 parts of toughening agent, 10 parts of inorganic nitride, 15 parts of solvent and 0.3 parts of antioxidant.
[0019] A method for preparing a keyboard balance bar comprises the following steps: In the first step, two groups of high-speed straightening machines are used to straighten the steel wire of automatic pay-off. Each group of straightening machines has eight top blocks, with an average of four blocks at each end. The arrangement and top position of each top block in each group of high-speed straightening machines are accurately positioned. When threading the steel wire, the end of the top block of the high-speed straightening machine is wrapped with 2mm thick wear-resistant aramid material to reduce the friction between the steel wire and the top block during the straightening process. After straightening, a certain length of steel wire is taken for testing using the through-hole measurement method; In the second step, the straightened steel wire passes through the extruder head for coating, the extruder main engine speed and traction speed are adjusted to control the amount of glue output, and the position of the extruder die and mandrel is adjusted to make the polytetrafluoroethylene coating layer uniform around the surface of the steel wire; The third step is to cut the straightened and coated steel wire to a fixed length online, and then put the cut-to-length steel wire into the automatic bending machine for bending; The fourth step is to automatically feed the material through the servo module to control the length of each section during the bending process, adjust the rotation angle of the bending knife to control the angle of each section of the balance bar, and control the degree of tilt and flatness of the balance bar by adjusting the angle of the bending knife itself.
[0020] As a further improvement of the above technical solution, the single-side thickness of the polytetrafluoroethylene coating layer is 0.04-0.06 mm.
[0021] As a further improvement of the above technical solution, the tilting degree and flatness of the keyboard balance bar are ≤0.15mm.
[0022] 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 keyboard balance bar, comprising a main bar section, both ends of the main bar section are provided with bending sections, the main bar section and the bending section are an integrally formed structure, characterized in that: The surfaces of the main rod section and the bending section are both provided with a coating layer, which is a polytetrafluoroethylene coating layer. The polytetrafluoroethylene coating layer includes the following components and weight proportions: 10-15 parts of polytetrafluoroethylene, 3-8 parts of phenolic resin, 7-15 parts of toughening agent, 7-10 parts of inorganic nitride, 4-15 parts of solvent and 0.1-0.3 parts of antioxidant.
2. A method for preparing a keyboard balance bar according to claim 1, characterized in that: The following steps are involved: In the first step, two groups of high-speed straightening machines are used to straighten the steel wire of automatic pay-off. Each group of straightening machines has eight top blocks, with an average of four blocks at each end. The arrangement and top position of each top block in each group of high-speed straightening machines are accurately positioned. When threading the steel wire, the end of the top block of the high-speed straightening machine is wrapped with 2mm thick wear-resistant aramid material to reduce the friction between the steel wire and the top block during the straightening process. After straightening, a certain length of steel wire is taken for testing using the through-hole measurement method; In the second step, the straightened steel wire passes through the extruder head for coating, the extruder main engine speed and traction speed are adjusted to control the amount of glue output, and the position of the extruder die and mandrel is adjusted to make the polytetrafluoroethylene coating layer around the surface of the steel wire uniform; The third step is to cut the straightened and coated steel wire to a fixed length online, and then put the cut-to-length steel wire into the automatic bending machine for bending; The fourth step is to automatically feed the material through the servo module to control the length of each section during the bending process, adjust the rotation angle of the bending knife to control the angle of each section of the balance bar, and control the degree of tilt and flatness of the balance bar by adjusting the angle of the bending knife itself.
3. The method for preparing a keyboard balance bar according to claim 2, characterized in that: The single-side thickness of the polytetrafluoroethylene coating layer is 0.04-0.06 mm.
4. The method for preparing a keyboard balance bar according to claim 2, characterized in that: The tilt degree and flatness of the keyboard balance bar are ≤0.15mm.