Injection molding device for keyboard keycap

By setting up an automatic lubrication system for auxiliary connecting rings and lubrication balls in the keyboard key cap injection molding device, the rust problem of guide columns is solved, and the operation convenience and practicality of the device are improved.

CN223223773UActive Publication Date: 2025-08-15KUNSHAN GUANXIN PLASTIC ELECTRONICS CO LTD
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Patent Information

Application Number
CN202422419436.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-08
Publication Date
2025-08-15
Estimated Expiration
2034-10-08

AI Technical Summary

Technical Problem

When the keyboard key cap injection molding device is used, the staff may forget to apply lubricant, causing rust on the guide column and energy loss.

Method used

The auxiliary connecting ring is set at the corner position of the upper end of the connection lower mold, and lubricated oil-coated balls are provided on the inner side. The inner chamber of the oil storage ring and the oil-coated pipe are connected through the rotary shaft. When the guide column is plugged into the auxiliary connecting ring, the oil-coated balls are automatically lubricated. The lubricating oil flows into the inner chamber of the oil-coated ring through the oil-coated pipe to achieve automatic lubrication.

Benefits of technology

It improves operational convenience, reduces energy loss caused by rust on the guide column, and enhances the practicality of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an injection molding device for a keyboard keycap. The injection molding device comprises a connecting lower mold arranged at the lower side position of a connecting upper mold, an auxiliary lubricating and oiling ball is arranged on the inner side of an auxiliary connecting ring, an inserting guide column connected with an upper die can be inserted along the middle of the auxiliary connecting ring, the side face of the inserting guide column can make contact with the auxiliary lubricating and oiling ball to move, and the auxiliary lubricating and oiling ball can bring an inner chamber of an oil storage ring out of the smearing guide column to achieve the lubricating effect. After the oil storage ring is improved, oil can be injected into all the auxiliary connecting rings by injecting oil into one auxiliary connecting ring, so that the operation convenience is improved; and meanwhile, an auxiliary lubricating and oiling ball can be used for automatically oiling, so that the phenomenon of excessive energy loss caused by rust of a guide column can be effectively avoided and reduced, and the use practicability of the injection molding device for the keyboard keycap is effectively improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field related to keyboard keycap processing, and particularly relates to an injection molding device for keyboard keycaps. Background Art

[0002] A keycap is a small plastic cap-shaped component that snaps onto the top of a keyboard key and is marked with the function, numbers, or letters of the corresponding key. The keycap of a mechanical keyboard refers to the outermost part of the keyboard where your fingers strike. The number of keycaps on each mechanical keyboard varies depending on the layout, such as 104, 87, 84, 98, and so on. Keycaps are made of different materials, including ABS, POM, and PBT, and there are also a variety of character printing processes.

[0003] The injection molding device used for keyboard keycaps is a type of injection molding machine. Injection molding machines, also known as injection molding machines or injection machines, are primarily used to inject thermoplastics or thermosetting plastics into molds through heating and pressurization to form plastic products of various shapes. Keyboard keycap injection molding machines are one such type of machine, specifically designed for producing keyboard keycaps. These keycaps are typically made from thermoplastic plastic materials such as PBT. Through the heating and pressurization process of the injection molding machine, the plastic is injected into the mold to form the final shape of the keycaps.

[0004] However, when using the injection molding device for keyboard keycaps, workers may forget to apply lubricating oil, which can easily cause rust on the guide posts. When the guide posts on the injection molding device for keyboard keycaps are guided, rust will form around them, causing some energy to be wasted.

[0005] The utility model improves the above-mentioned problem and particularly relates to an injection molding device for keyboard keycaps capable of applying lubrication. Utility Model Content

[0006] The purpose of the present utility model is to provide an injection molding device for keyboard keycaps, so as to solve the problem in the injection molding device for keyboard keycaps proposed in the above background technology that the staff may forget to apply lubricating oil during use, which may easily cause the guide pillars to rust, and the guide pillars on the injection molding device of the keyboard keycaps may rust around them during guiding, which may cause part of the energy to be wasted.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: an injection molding device for keyboard keycaps, comprising a connecting upper mold and a connecting lower mold provided at a position below the connecting upper mold;

[0008] An auxiliary connecting ring is provided at the upper corner position of the connecting lower mold, and an auxiliary lubricating oil ball is provided at the inner position of the auxiliary connecting ring. The upper and lower side positions of the auxiliary lubricating oil ball are rotatably connected to the auxiliary connecting ring through a rotating shaft. An oil storage ring inner chamber is provided at the internal position of the auxiliary connecting ring, and a connecting oil pipe is provided at the side position of the auxiliary connecting ring. A rotating connecting cover is provided at the side position of one of the auxiliary connecting rings. The plug-in guide column connecting the upper mold will be plugged in along the middle of the auxiliary connecting ring, and its side will contact the auxiliary lubricating oil ball for movement. The auxiliary lubricating oil ball will bring the oil storage ring inner chamber out to the guide column to play a lubricating role, and the oil injected out of the rotating connecting cover will flow into the other oil storage ring inner chambers along the connecting oil pipe.

[0009] Preferably, vertical lines are provided on the outer side surface of the rotatable connection cover, and the rotatable connection cover is rotatably connected to the auxiliary connection ring through threaded rotation.

[0010] Preferably, a mold upper connecting plate is provided at the upper side surface of the connecting upper mold, a threaded connecting hole is provided on the mold upper connecting plate, and an injection molding connecting hole is provided at the middle position of the mold upper connecting plate.

[0011] Preferably, a mold lower connecting plate is provided at the lower end of the connecting lower mold, the mold lower connecting plate and the connecting lower mold are an integrated structure, and threaded holes are also provided on the mold lower connecting plate.

[0012] Preferably, a hidden groove is provided at an outer position of the connecting oil pipe, and the hidden groove is formed by connecting the upper structure of the lower mold.

[0013] Preferably, an injection molding groove is provided at the upper side surface of the connecting upper mold, and the injection molding groove is formed by a milling machine.

[0014] Preferably, a keycap molding groove is provided on the injection molding groove, and an injection material flow channel groove is provided at an adjacent position of each keycap molding groove.

[0015] Compared with the prior art, the present invention provides an injection molding device for keyboard keycaps, which has the following beneficial effects:

[0016] In the injection molding device for keyboard keycaps, an auxiliary connecting ring is provided at the upper corner position of the lower mold, an auxiliary lubricating oil-coated ball is provided at the inner position of the auxiliary connecting ring, the upper and lower side positions of the auxiliary lubricating oil-coated ball are rotatably connected to the auxiliary connecting ring through a rotating shaft, an oil storage ring inner chamber is provided at the inner position of the auxiliary connecting ring, and a connecting oil pipe is provided at the side position of the auxiliary connecting ring. A rotating connecting cover is provided at the side position of one of the auxiliary connecting rings, and the plug-in guide column connected to the upper mold will be plugged in along the middle of the auxiliary connecting ring, and its side will contact the auxiliary connecting ring. When the lubricating oil ball moves, the auxiliary lubricating oil ball will bring the oil from the inner chamber of the oil storage ring to the guide post to play a lubricating role. The oil injected by rotating the connecting cover will flow along the connecting oil pipe into the inner chamber of other oil storage rings. After the practical improvement, all auxiliary connecting rings can be oiled by oiling one auxiliary connecting ring, thereby improving the convenience of operation. At the same time, the auxiliary lubricating oil ball can automatically apply oil, which can effectively avoid the excessive energy loss caused by rust on the guide post, thereby effectively improving the practicality of the injection molding device for keyboard keycaps. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the injection molding device for keyboard keycaps of the present invention.

[0018] Figure 2 The utility model is a schematic diagram of the lower mold structure of the injection molding device for keyboard keycaps.

[0019] Figure 3 This is an enlarged structural diagram of the injection molding device No. B for keyboard keycaps of the present invention.

[0020] Figure 4 This is an enlarged structural diagram of the injection molding device No. A for keyboard keycaps of the present invention.

[0021] Figure 5 The utility model is a schematic top view of the cross-sectional structure of the auxiliary connecting ring of the injection molding device for keyboard keycaps.

[0022] In the figure: 1. Connecting plate on the mold; 2. Connecting the upper mold; 3. Connecting the lower mold; 4. Connecting plate on the lower mold; 5. Injection molding connecting hole; 6. Injection molding groove; 7. Connecting oil pipe; 8. Auxiliary lubrication oil-coated ball; 9. Auxiliary connecting ring; 10. Hidden groove; 11. Keycap molding groove; 12. Injection material flows through the channel groove; 13. Connecting shaft; 14. Oil storage ring inner chamber; 15. Rotating connecting cover. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 making creative efforts are within the scope of protection of the present invention.

[0024] The utility model provides Figure 1-5 As shown, an injection molding device for keyboard keycaps includes a connecting upper mold 2 and a connecting lower mold 3 provided at a position below the connecting upper mold 2;

[0025] An auxiliary connecting ring 9 is provided at the upper corner position of the lower mold 3, and an auxiliary lubricating oil-coated ball 8 is provided at the inner position of the auxiliary connecting ring 9. The upper and lower side positions of the auxiliary lubricating oil-coated ball 8 are rotatably connected to the auxiliary connecting ring 9 through a rotating shaft. An oil storage ring inner chamber 14 is provided at the internal position of the auxiliary connecting ring 9, and a connecting oil pipe 7 is provided at the side position of the auxiliary connecting ring 9. A rotating connecting cover 15 is provided at the side position of one of the auxiliary connecting rings 9. The plug-in guide column connecting the upper mold 2 will be plugged in along the middle of the auxiliary connecting ring 9, and its side will contact the auxiliary lubricating oil-coated ball 8 As the oil is moved, the auxiliary lubricating oil-coating ball 8 will bring the oil storage ring chamber 14 out to coat the guide column to play a lubricating role. The oil injected by rotating the connecting cover 15 will flow into the other oil storage ring chambers 14 along the connecting oil pipe 7. After the practical improvement, all auxiliary connecting rings 9 can be oiled by oiling one auxiliary connecting ring 9, thereby improving the convenience of operation. At the same time, the auxiliary lubricating oil-coating ball 8 can automatically apply oil, which can effectively avoid the excessive energy loss caused by rust on the guide column, thereby effectively improving the practicality of the injection molding device for keyboard keycaps.

[0026] like Figure 2 As shown, vertical lines are provided on the outer side surface of the rotating connecting cover 15. The rotating connecting cover 15 is rotatably connected to the auxiliary connecting ring 9 by threaded rotation. The vertical lines on the outer side of the rotating connecting cover 15 can increase the friction between the user's hand, thereby avoiding the phenomenon of mutual sliding resulting in inability to rotate.

[0027] like Figure 1As shown, a mold upper connecting plate 1 is provided at the upper side position of the upper mold 2, a threaded connecting hole is provided on the mold upper connecting plate 1, an injection connecting hole 5 is provided at the middle position of the mold upper connecting plate 1, and a mold lower connecting plate 4 is provided at the lower end position of the lower mold 3. The mold lower connecting plate 4 and the lower mold 3 are an integrated structure, and a threaded hole is also provided on the mold lower connecting plate 4. The position of the injection connecting hole 5 is provided for injecting injection molding material. The mold upper connecting plate 1 and the mold lower connecting plate 4 are used to install and connect the mold to a designated machine.

[0028] like Figure 1 As shown, a hidden groove 10 is provided at the outer side of the connecting oil pipe 7. The hidden groove 10 is formed by connecting the upper structure of the lower mold 3. The setting of the hidden groove 10 is used to hide the connecting oil pipe 7 to avoid accidental contact and affect the appearance due to its exposure.

[0029] like Figure 2 As shown, an injection molding groove 6 is provided at the upper side surface position of the upper mold 2, and the injection molding groove 6 is formed by a milling machine. A keycap molding groove 11 is provided on the injection molding groove 6, and an injection material flow channel groove 12 is provided at the adjacent position of each keycap molding groove 11. The injection molding material injected into the injection connection hole 5 will enter the injection molding groove 6, and then at the same time it will flow along the injection molding material through the channel groove 12 and flow into other keycap molding grooves 11 for molding.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An injection molding device for keyboard keycaps, comprising A connecting upper mold (2) and a connecting lower mold (3) provided at a lower side of the connecting upper mold (2); Its characteristics are: An auxiliary connecting ring (9) is provided at the upper corner position of the connecting lower mold (3), an auxiliary lubricating oil-coating ball (8) is provided at the inner position of the auxiliary connecting ring (9), and the upper and lower side positions of the auxiliary lubricating oil-coating ball (8) are rotatably connected to the auxiliary connecting ring (9) through a rotating shaft. An oil storage ring inner chamber (14) is provided at the inner position of the auxiliary connecting ring (9), and a connecting oil pipe (7) is provided at the side position of the auxiliary connecting ring (9). A rotating connecting cover (15) is provided at the side position of one of the auxiliary connecting rings (9). The plug-in guide column connecting the upper mold (2) will be plugged in along the middle of the auxiliary connecting ring (9), and its side will contact the auxiliary lubricating oil-coating ball (8) to move. The auxiliary lubricating oil-coating ball (8) will bring the oil storage ring inner chamber (14) out of the guide column to play a lubricating role. The oil injected out of the rotating connecting cover (15) will flow into other oil storage ring inner chambers (14) along the connecting oil pipe (7).

2. The injection molding device for keyboard keycaps according to claim 1, characterized in that: The outer side surface of the rotating connection cover (15) is provided with vertical lines, and the rotating connection cover (15) is rotationally connected to the auxiliary connection ring (9) through threaded rotation.

3. The injection molding device for keyboard keycaps according to claim 1, characterized in that: A mold upper connecting plate (1) is provided at the upper side of the connecting upper mold (2), a threaded connecting hole is provided on the mold upper connecting plate (1), and an injection molding connecting hole (5) is provided at the middle position of the mold upper connecting plate (1).

4. The injection molding device for keyboard keycaps according to claim 1, characterized in that: A mold lower connecting plate (4) is provided at the lower end of the connecting lower mold (3). The mold lower connecting plate (4) and the connecting lower mold (3) are an integrated structure, and a threaded hole is also provided on the mold lower connecting plate (4).

5. The injection molding device for keyboard keycaps according to claim 1, characterized in that: A hidden groove (10) is provided at the outer side of the connecting oil pipe (7), and the hidden groove (10) is formed by connecting the upper structure of the lower mold (3).

6. The injection molding device for keyboard keycaps according to claim 1, characterized in that: An injection molding groove (6) is provided at the upper side surface of the connecting upper mold (2), and the injection molding groove (6) is formed by a milling machine.

7. The injection molding device for keyboard keycaps according to claim 6, characterized in that: A key cap molding groove (11) is provided on the injection molding groove (6), and an injection material flow channel groove (12) is provided at an adjacent position of each key cap molding groove (11).