Keyboard keycap automatic ejection and press-fit equipment

Abstract

The utility model relates to the technical field of keyboard processing equipment, in particular to keyboard keycap automatic ejecting and pressing equipment which comprises a machine table, a lower die, a middle die, an upper die, a lifting plate and a lifting driving device used for driving the lifting plate to lift, the upper die is connected with the lifting plate, the middle die is provided with a containing groove used for containing a keycap, and the lifting driving device is connected with the lower die. The upper die is provided with a keycap ejection mechanism; the lower die is provided with a protruding column corresponding to the containing groove of the middle die, the top of the protruding column is provided with a telescopic jacking column and a pressing block, and the top end of the telescopic jacking column is higher than the top of the pressing block. Before the key cap and the keyboard bottom plate are pressed, one end of the key cap is jacked up through the telescopic jacking column, so that the key cap is inserted into the keyboard bottom plate in an inclined state; and then the telescopic top column is slowly contracted by utilizing the contractility of the telescopic top column, so that the pressing block of the convex column is in contact with the key cap, and the key cap is gradually pressed on the keyboard bottom plate. According to the structure, the oblique insertion pressing process of the keycap can be realized.

Description

Technical Field

[0001] This utility model relates to the field of keyboard processing equipment technology, and in particular to an automatic keycap ejection and pressing device for keyboards. Background Technology

[0002] Currently, in the keyboard installation process, the keycaps are usually ejected from the keycap module first, and then manually assembled onto the keyboard base plate one by one by workers. This is not only inefficient but also labor-intensive. Therefore, an inventor has designed a keycap ejection and pressing machine (application number: 201420433922.7, patent name: A Keycap Ejection and Pressing Machine). The patent discloses a machine comprising: a support, a pressing drive, an ejection drive, and a lower pressure plate, an upper mold, a middle mold, and a lower mold arranged sequentially from top to bottom within the support. The middle mold and lower mold fix the keycap module and the keyboard base plate respectively. Then, the pressing drive drives the lower pressure plate to press down, and the lower pressure plate, through a fixing rod, drives the middle mold to press down, making the keycap module fit against the keyboard base plate. Finally, the ejection drive drives the upper mold, using a push pin to eject the keycap, pressing the keycap against the keyboard base plate, thus achieving both keycap ejection and pressing. Therefore, it can be concluded that the keycap is directly pressed onto the keyboard base, and this technical solution is only suitable for keycaps that are directly pressed together. However, many keyboards currently use thin keycaps. When pressing thin keycaps onto the keyboard base, the keycaps need to be tilted at a certain angle before being pressed into the keyboard base; otherwise, thin keycaps cannot be pressed onto the keyboard base. The aforementioned patent does not solve this problem, and an effective solution is urgently needed. Summary of the Invention

[0003] The purpose of this invention is to provide a keyboard keycap automatic ejection and pressing device that allows thin keycaps to be tilted and quickly pressed onto the keyboard base plate, addressing the shortcomings of existing technologies.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] This utility model provides an automatic keycap ejection and pressing device, which includes a machine base, a lower mold disposed on the machine base, a middle mold disposed above the lower mold, an upper mold disposed above the middle mold, a lifting plate slidably disposed on the machine base, and a lifting drive device for driving the lifting plate to move up and down. The upper mold is connected to the lifting plate. The middle mold is provided with a receiving groove for accommodating keycaps. The upper mold is provided with a keycap ejection mechanism. The lower mold is provided with a protrusion corresponding to the receiving groove of the middle mold. The top of the protrusion is provided with a telescopic top post and a pressing block. The top of the telescopic top post is higher than the top of the pressing block.

[0006] Furthermore, the keycap ejection mechanism includes a sliding plate slidably disposed between the lifting plate and the upper mold, an ejection rod disposed on the sliding plate, and an ejection drive device for driving the sliding plate to rise and fall. The upper mold is provided with a through hole corresponding to the ejection rod.

[0007] Furthermore, the ejection drive device includes a pull rod slidably disposed on the lifting plate, a pull block connected to the pull rod, and a lifting drive cylinder for driving the pull block to rise and fall. The pull block is connected to the output shaft of the lifting drive cylinder, one end of the pull rod is connected to the pull block, and the other end of the pull rod is connected to the sliding plate.

[0008] Furthermore, the protruding post is provided with a sliding groove for the telescopic top post to slide, and an elastic element is provided in the sliding groove.

[0009] Furthermore, the pressing block is a silicone block.

[0010] Furthermore, the lower mold is provided with guide posts, the middle mold is slidably sleeved on the guide posts, and the guide posts between the lower mold and the middle mold are provided with elastic structures.

[0011] The beneficial effects of this utility model are:

[0012] This utility model provides an automatic keycap ejection and pressing device. A telescopic ejector pin is provided on the protrusion of the lower mold. Before the keycap is pressed against the keyboard base plate, the telescopic ejector pin first elevates one end of the keycap, causing it to be inserted into the keyboard base plate at an angle. Then, utilizing the retractable nature of the telescopic ejector pin, it slowly retracts, causing the pressing block of the protrusion to contact the keycap and gradually press the keycap onto the keyboard base plate. This structure is simple, compact, and ingenious in design, operates stably and reliably, and can realize the angled insertion and pressing process of keycaps, thereby overcoming the shortcomings of existing pressing equipment. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a top view of the lower mold of this utility model;

[0015] Figure 3 This is a side view of the lower mold of this utility model;

[0016] Figure 4 This is a cross-sectional view of the protruding post, telescopic top post, and pressing block of the lower mold of this utility model;

[0017] Figure 5 This is a three-dimensional structural diagram of the concealed machine platform of this utility model.

[0018] Explanation of reference numerals in the attached figures

[0019] 1. Machine base; 2. Lower mold; 21. Protruding column; 22. Telescopic ejector column; 23. Pressing block; 24. Sliding groove; 25. Elastic element; 3. Middle mold; 31. Receiving groove; 32. Pressing block; 4. Upper mold; 41. Sliding plate; 42. Ejector rod; 43. Pull rod; 44. Pull block; 45. Lifting drive cylinder; 5. Lifting plate; 6. Lifting drive device. Detailed Implementation

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0021] like Figures 1 to 5 As shown, this utility model provides an automatic keycap ejection and pressing device, which includes a machine base 1, a lower mold 2 disposed on the machine base 1, a middle mold 3 disposed above the lower mold 2, an upper mold 4 disposed above the middle mold 3, a lifting plate 5 slidably disposed on the machine base 1, and a lifting drive device 6 for driving the lifting plate 5 to rise and fall. The upper mold 4 is connected to the lifting plate 5. The middle mold 3 is provided with a receiving groove 31 for accommodating keycaps. The upper mold 4 is provided with a keycap ejection mechanism. The lower mold 2 is provided with a protrusion 21 corresponding to the receiving groove 31 of the middle mold 3. The top of the protrusion 21 is provided with a telescopic top post 22 and a pressing block 23. The top of the telescopic top post 22 is higher than the top of the pressing block 23. Specifically, the lifting drive device 6 is a drive cylinder.

[0022] In practical applications, the keycap module is placed on the middle mold 3. Then, the lifting drive device 6 drives the lifting plate 5 to lower the upper mold 4 until the upper mold 4 presses against the middle mold 3. Next, the keycap ejection mechanism ejects the keycaps from the keycap module on the middle mold 3 and pushes them into the receiving groove 31 of the middle mold 3. Then, the lifting drive device 6 drives the lifting plate 5 to raise and reset the upper mold 4. At this time, the excess keycap module edge material is removed, and the keyboard base plate is placed on the middle mold 3. Then, the lifting drive device 6 drives the upper mold 4 to lower. At this time, the keycap ejection mechanism does not work, and the upper mold 4 presses down. When the middle mold 3 is pressed down on the lower mold 2, the protrusion 21 of the lower mold 2 enters the receiving groove 31 of the middle mold 3, and at the same time the telescopic top post 22 extends into the receiving groove 31 to facilitate contact of one end of the keycap. After being pushed by the telescopic top post 22, one end of the keycap will tilt upward, making the keycap tilted in the receiving groove 31. Then, the protrusion 21 of the lower mold 2 continues to push into the receiving groove 31, so that the tilted end of the keycap first inserts into the keyboard base plate. Slowly, the telescopic top post 22 is compressed, and the pressing block 23 facilitates contact of the keycap and presses the keycap into the keyboard base plate as a whole, thereby completing the process of tilting and pressing the keycap. This invention features a telescopic top post 22 on the protrusion 21 of the lower mold 2. Before the keycap is pressed against the keyboard base plate, the telescopic top post 22 first elevates one end of the keycap, causing it to be inserted into the keyboard base plate at an angle. Then, utilizing the retractability of the telescopic top post 22, it slowly retracts, causing the pressing block 23 of the protrusion 21 to contact the keycap and gradually press it onto the keyboard base plate. This structure is simple, compact, and ingenious in design, operates stably and reliably, and can achieve the angled insertion and pressing process of the keycap, thereby overcoming the shortcomings of existing pressing equipment.

[0023] In this technical solution, the keycap ejection mechanism includes a sliding plate 41 slidably disposed between the lifting plate 5 and the upper mold 4, an ejection rod 42 disposed on the sliding plate 41, and an ejection drive device for driving the sliding plate 41 to rise and fall. The upper mold 4 is provided with a through hole corresponding to the ejection rod 42. Specifically, the ejection drive device includes a pull rod 43 slidably disposed on the lifting plate 5, a pull block 44 connected to the pull rod 43, and a lifting drive cylinder 45 for driving the pull block 44 to rise and fall. The pull block 44 is connected to the output shaft of the lifting drive cylinder 45, one end of the pull rod 43 is connected to the pull block 44, and the other end of the pull rod 43 is connected to the sliding plate 41. In practical applications, when the upper mold 4 and the middle mold 3 are fitted together, the lifting drive cylinder 45 drives the pull block 44 to descend. The descent of the pull block 44 causes the pull rod 43 to descend, which in turn causes the sliding plate 41 to descend. The descent of the sliding plate 41 then causes the ejector rod 42 to descend. The descending ejector rod 42 extends out from the through hole of the upper mold 4, directly ejecting the keycaps on the keycap module of the middle mold 3 and pushing them into the receiving groove 31 of the middle mold 3. When the upper mold 4 is reset, and the keyboard base plate is placed on the middle mold 3 for pressing, the ejector rod 42 will not be activated and will be located above the upper mold 4.

[0024] In this technical solution, the protruding post 21 has a sliding groove 24 inside for the sliding of the telescopic top post 22, and an elastic element 25 is provided inside the sliding groove 24. The elastic element 25 is a spring, with one end abutting against the bottom of the sliding groove 24 and the other end abutting against the bottom of the telescopic top post 22. Specifically, the telescopic top post 22 has a T-shaped cross-section, and the sliding groove 24 also has a T-shaped cross-section. This structural design can limit the telescopic top post 22 within the sliding groove 24. Thus, the extension and retraction of the telescopic top post 22 is achieved by the spring.

[0025] In this technical solution, the pressing block 23 is a silicone block. Using silicone material ensures that the pressing block 23 does not produce a large hard impact with the keycap during pressing, preventing the thin keycap from being crushed.

[0026] In this technical solution, the lower mold 2 is provided with guide posts, and the middle mold 3 is slidably sleeved on the guide posts. An elastic structure is provided on the guide posts between the lower mold 2 and the middle mold 3. In the non-pressing state, the elastic structure pushes against the middle mold 3, maintaining a certain gap between the middle mold 3 and the lower mold 2.

[0027] In this technical solution, clamping blocks 32 and clamping drive devices for driving the clamping blocks 32 closer to or further away from the middle mold 3 are slidably arranged on both sides of the machine base 1. The clamping drive device is a drive cylinder. When the keycap needs to be ejected from the keycap module, the clamping drive device first drives the clamping blocks 32 closer to the middle mold 3 to clamp both sides of the middle mold 3. Its function is to prevent the middle mold 3 from pressing down when the keycap is ejected, thus preventing the protrusion 21 of the lower mold 2 from extending into the receiving groove 31 of the middle mold 3.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A keyboard keycap automatic ejection and pressing device, characterized in that: The device includes a machine base, a lower mold disposed on the machine base, a middle mold disposed above the lower mold, an upper mold disposed above the middle mold, a lifting plate slidably disposed on the machine base, and a lifting drive device for driving the lifting plate to move up and down. The upper mold is connected to the lifting plate. The middle mold is provided with a receiving groove for accommodating keycaps. The upper mold is provided with a keycap ejection mechanism. The lower mold is provided with a protrusion corresponding to the receiving groove of the middle mold. The top of the protrusion is provided with a telescopic top post and a pressing block. The top of the telescopic top post is higher than the top of the pressing block.

2. The automatic keycap ejection and pressing device according to claim 1, characterized in that: The keycap ejection mechanism includes a sliding plate slidably disposed between the lifting plate and the upper mold, an ejection rod disposed on the sliding plate, and an ejection drive device for driving the sliding plate to rise and fall. The upper mold is provided with a through hole corresponding to the ejection rod.

3. The automatic keycap ejection and pressing device according to claim 2, characterized in that: The ejection drive device includes a pull rod slidably disposed on the lifting plate, a pull block connected to the pull rod, and a lifting drive cylinder for driving the pull block to rise and fall. The pull block is connected to the output shaft of the lifting drive cylinder, one end of the pull rod is connected to the pull block, and the other end of the pull rod is connected to the sliding plate.

4. The automatic keycap ejection and pressing device according to claim 1, characterized in that: The protruding post has a sliding groove inside for the telescopic top post to slide, and an elastic element is provided in the sliding groove.

5. The automatic keycap ejection and pressing device according to claim 1, characterized in that: The pressing block is a silicone block.

6. The automatic keycap ejection and pressing device according to claim 1, characterized in that: The lower mold is provided with guide posts, the middle mold is slidably sleeved on the guide posts, and the guide posts between the lower mold and the middle mold are provided with elastic structures.

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