A keyboard production use die blank positioning device

Abstract

The utility model relates to keyboard production equipment technical field, concretely relates to a kind of moulding blank positioning device for keyboard production, including positioning frame, positioning frame includes warp guide pillar and weft guide pillar of sliding setting on positioning frame, and warp guide pillar and weft guide pillar are mutually perpendicular in same horizontal plane, still include movable plate slidingly connected with warp guide pillar and weft guide pillar respectively;Upper die assembly, upper die assembly includes pressing plate and the upper die plate elastically connected with pressing plate, pressing plate is equipped with hydraulic drive part, upper die plate is equipped with flat top pyramid slot, and the small caliber end size of flat top pyramid slot is identical with the size of the male die on movable plate.The utility model is set in the flat top pyramid slot of upper die plate, flat top pyramid slot will guide lower die to move when moulding, movable plate will squeeze elastic member and slide on warp guide pillar and weft guide pillar to adapt upper die plate at this time, finally realize accurate moulding, reduce the cycle of early production, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of keyboard production equipment technology, specifically to a mold positioning device for keyboard production. Background Technology

[0002] As a standardized electronic component, the core production process of a keyboard involves the injection molding of the keycaps and the outer casing. When using a keyboard mold, the upper and lower molds need to be calibrated and their accuracy ensured to prevent damage to the mold during mold closing.

[0003] Currently, traditional keyboard mold positioning requires the use of guide pillar-guide sleeve structure or conical positioning block to achieve precise alignment of the upper and lower molds. In actual operation, the mold fixing bolts need to be adjusted multiple times, resulting in a single mold installation taking 15-20 minutes. It also requires high skill from the operators. In addition, existing mold splitting mechanisms mostly adopt vertical lifting mold opening and closing. After the mold splits, the lower mold remains stationary, and the operator needs to manually reach into the mold cavity to retrieve the material.

[0004] Existing mold installation and positioning rely on high-precision mechanical coordination, which is complex and inefficient. The mold parting process poses safety hazards and limits material handling efficiency. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a positioning device for a keyboard production mold blank, which can effectively solve the problems of complex operation and low efficiency in mold installation in the existing technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a positioning device for a keyboard production mold blank, including a positioning frame. The positioning frame includes a warp guide column and a weft guide column slidably disposed on the positioning frame. The warp guide column and the weft guide column are perpendicular to each other in the same horizontal plane. The warp guide column and the weft guide column are not in the same horizontal plane. The device also includes a movable plate slidably connected to the warp guide column and the weft guide column respectively.

[0008] The upper mold assembly includes a pressure plate and an upper template elastically connected to the pressure plate. The pressure plate is provided with a hydraulic drive component, and the upper template is provided with a flat-topped pyramidal groove. The small-diameter end of the flat-topped pyramidal groove is consistent with the size of the punch on the movable plate.

[0009] According to some embodiments of this utility model, the hydraulic drive component is connected to the pressure plate through multiple sets of locking components, and the upper template is slidably connected to the pressure plate through a guide rod. The cross-section of the guide rod is T-shaped, and a return spring is provided between the guide rod and the pressure plate. The return spring is used to always pull the upper template toward the pressure plate and make it fit against the pressure plate.

[0010] According to some embodiments of the present invention, elastic elements are sleeved on the warp guide column and the weft guide column, and the elastic elements abut against the warp guide column and the movable plate, as well as against the weft guide column and the movable plate.

[0011] According to some embodiments of this utility model, the number of warp guide columns and weft guide columns is N, and N is an even number. Adjacent warp guide columns and adjacent weft guide columns are connected by a horizontal plate, and the side of the horizontal plate near the positioning frame is provided with ball bearings.

[0012] According to some embodiments of the present invention, it also includes a base, on which a connecting plate is rotatably mounted, and a spring is provided between the connecting plate and the base. The side of the spring away from the rotation axis is rotatably connected to the positioning frame through a connecting block.

[0013] According to some embodiments of this utility model, the angle between the connecting plate and the horizontal plane is α, and α < 90°.

[0014] According to some embodiments of the present invention, the upper template is provided with a guide block, the pressure plate is provided with a vertical guide plate parallel to the guide block, and the pressure plate is provided with a horizontal guide plate that cooperates with the guide block and the vertical guide plate respectively.

[0015] According to some embodiments of the present invention, the bottom of the vertical guide plate is provided with a rotating roller.

[0016] Beneficial effects

[0017] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0018] 1. The flat-topped pyramid-shaped groove in the upper template guides the lower mold to move when the lower mold and upper template are closed. At this time, the movable plate will squeeze the elastic element and slide on the warp and weft guide columns to fit the upper template, thus achieving precise mold closing. During installation, it is only necessary to roughly align the lower mold and upper mold. In the subsequent mold closing process, the upper mold and lower mold will be precisely matched under the guidance of the upper template, reducing the early production cycle and improving production efficiency.

[0019] 2. When the pressure plate descends, it works with the vertical guide plate, the horizontal guide plate and the guide block to press the positioning frame down. Since a is less than 90°, when the connecting plate is pressed, it will drive the positioning frame to move below the upper mold. When the positioning frame can no longer descend, the vertical guide plate will press the horizontal guide plate and then work with the guide block to push the upper mold plate away from the lower mold to complete the production. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention during mold closing;

[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention during mold opening;

[0023] Figure 3 This is a partial exploded view of the structure of this utility model;

[0024] Figure 4 This is a cross-sectional view of the present invention;

[0025] Figure 5 This is a partial cross-sectional view of the base and positioning frame of this utility model.

[0026] Reference numerals: 1. Positioning frame; 101. Connecting block; 11. Movable plate; 111. Warp guide column; 112. Weft guide column; 113. Elastic element; 2. Upper mold assembly; 21. Pressure plate; 211. Hydraulic drive component; 212. Guide rod; 213. Vertical guide plate; 2131. Rotating roller; 214. Horizontal guide plate; 22. Upper template; 2201. Flat-top pyramidal groove; 221. Guide block; 3. Base; 31. Connecting rotating plate; 32. Spring. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] The present invention will be further described below with reference to the embodiments.

[0029] See attached document Figure 1-5A positioning device for a keyboard production mold blank includes a positioning frame 1 for automatic correction and precise positioning during mold closing. The positioning frame 1 includes a warp guide post 111 and a weft guide post 112 slidably mounted on the positioning frame 1. The warp guide post 111 and the weft guide post 112 are perpendicular to each other in the same horizontal plane, but not in the same horizontal plane, meaning they are vertically misaligned. Specifically, the warp guide post 111 is higher or lower than the weft guide post 112. The device also includes a movable plate 11 slidably connected to the warp guide post 111 and the weft guide post 112 respectively. The movable plate 11 is used to install the lower mold, and it has multiple sets of inverted T-slots for... The lower mold is fixed on the movable plate 11 with the help of the clamp. Elastic elements 113 are sleeved on the warp guide column 111 and the weft guide column 112. The elastic elements 113 abut against the warp guide column 111 and the movable plate 11, and against the weft guide column 112 and the movable plate 11. By sleeved on the warp guide column 111 and the weft guide column 112, the elastic elements 113 are used to compress the movable plate 11, preventing the movable plate 11 from deviating too much from the center of the positioning frame 1. The number of warp guide columns 111 and weft guide columns 112 is N, and N is an even number. Adjacent warp guide columns 111 and adjacent weft guide columns 112 are connected by a horizontal plate. The side of the horizontal plate near the positioning frame 1 is provided with ball bearings. The ball bearings are used to reduce the friction between the horizontal plate and the positioning frame 1. At the same time, multiple sets of warp guide columns 111 and weft guide columns 112 also increase the pressure resistance of the movable plate 11.

[0030] The upper mold assembly 2 includes a pressure plate 21 and an upper template 22 elastically connected to the pressure plate 21. A hydraulic drive unit 211 is connected to the pressure plate 21 via multiple sets of locking components. The upper template 22 is slidably connected to the pressure plate 21 via a guide rod 212. The guide rod 212 has a T-shaped cross-section, and a return spring is provided between the guide rod 212 and the pressure plate 21. The return spring is used to consistently pull the upper template 22 towards and against the pressure plate 21. In the initial state, the spring sleeved on the guide rod 212 compresses the guide rod 212. 12. The upper template 22 is attached to the pressure plate 21. The pressure plate 21 is equipped with a hydraulic drive component 211, which is used to drive the pressure plate 21 and the upper template 22 to descend. The upper template 22 is equipped with a flat-top pyramidal groove 2201. The small diameter end of the flat-top pyramidal groove 2201 is consistent with the size of the punch on the movable plate 11. Through the setting of the flat-top pyramidal groove 2201, when the mold is closed, the flat-top pyramidal groove 2201 will guide the lower mold to gradually move and cooperate with the upper mold to produce.

[0031] In the above technical solution, when the hydraulic drive component 211 pushes the pressure plate 21 down, it will pass through the flat-topped pyramid-shaped groove 2201 set in the upper template 22. When the lower mold and the upper template 22 are closed, the flat-topped pyramid-shaped groove 2201 will guide the lower mold to move. At this time, since the lower mold is fixed on the movable plate 11, the movable plate 11 will squeeze the elastic component 113 and slide on the warp guide column 111 and the weft guide column 112 to adapt to the upper template 22, and finally achieve precise mold closing. When installing the lower mold, it is only necessary to roughly align the lower mold with the upper mold. In the subsequent mold closing process, the upper mold and the lower mold will achieve precise cooperation under the guidance of the upper template 22, reducing the early production cycle and improving production efficiency.

[0032] It also includes a base 3, on which a connecting plate 31 is rotatably mounted. A spring 32 is provided between the connecting plate 31 and the base 3. When the connecting plate 31 is not compressed, the connecting plate 31 is lifted up under the action of the spring 32. The side of the spring 32 away from the rotation axis is rotatably connected to the positioning frame 1 through the connecting block 101. While lifting the positioning frame 1 through the lifting action of the connecting plate 31, the lower mold and the upper mold will be displaced by a certain amount. Furthermore, the angle between the connecting plate 31 and the horizontal plane is α, and α < 90°. By setting the range of α, the positioning frame 1 and the upper mold assembly 2 are displaced, while preventing the upper mold assembly 2 from squeezing the positioning frame 1 to move in the opposite direction when it descends.

[0033] Furthermore, the upper template 22 is provided with a guide block 221, and the pressure plate 21 is provided with a vertical guide plate 213 parallel to the guide block 221. The pressure plate 21 is provided with a horizontal guide plate 214 that cooperates with the guide block 221 and the vertical guide plate 213 respectively. A limiting member is provided between the vertical guide plate 213 and the pressure plate 21 to prevent the vertical guide plate 213 from disengaging from the pressure plate 21. This is a relatively mature existing technology, so it will not be described in detail here. When the pressure plate 21 descends and pushes the vertical guide plate 213 to contact the positioning frame 1, the vertical guide plate 213 will push the positioning frame 1 to descend first, while cooperating with the connecting plate. 31. While the positioning frame 1 is lowered, it is gradually aligned with the upper mold. When the vertical guide plate 213 cannot be lowered, it will squeeze the horizontal guide plate 214 and then cooperate with the guide block 221 to push the upper template 22 away from the pressure plate 21 and compress the reset spring sleeved on the guide rod 212. When the upper template 22 is separated from the pressure plate 21, it cooperates with the flat-top pyramid-shaped groove 2201 to guide the lower mold into the upper template 22, so as to achieve precise mold closing and quick installation. In addition, the bottom of the vertical guide plate 213 is provided with a rotating roller 2131, which is used to reduce the friction between the vertical guide plate 213 and the positioning frame 1.

[0034] Working principle: During processing, the hydraulic drive component 211 pushes the pressure plate 21 down and first contacts the vertical guide plate 213 with the positioning frame 1, while simultaneously squeezing the positioning frame 1 down. Since α is less than 90°, when the connecting rotating plate 31 is pressed, it will drive the positioning frame 1 to move below the upper mold until the positioning frame 1 can no longer descend. The vertical guide plate 213 will then squeeze the horizontal guide plate 214, which in turn cooperates with the guide block 221 to push the upper template 22 away from the pressure plate 21 and compress the return spring sleeved on the guide rod 212. After that, the upper template 22 will contact the pressure plate 211 again. 1. During separation, the lower mold is guided by the flat-topped pyramid-shaped groove 2201. Since the lower mold is fixed on the movable plate 11, the movable plate 11 will squeeze the elastic element 113 and slide on the warp guide post 111 and weft guide post 112 to fit the upper template 22, thus achieving precise mold closing. When installing the lower mold, it is only necessary to roughly align the lower mold with the upper mold. In the subsequent mold closing process, the upper mold and the lower mold will be precisely matched under the guidance of the upper template 22, reducing the early production cycle and improving production efficiency.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A positioning device for a keyboard production mold blank, characterized in that, include: The positioning frame (1) includes a warp guide column (111) and a weft guide column (112) slidably disposed on the positioning frame (1), and the warp guide column (111) and the weft guide column (112) are perpendicular to each other in the same horizontal plane, and the warp guide column (111) and the weft guide column (112) are not in the same horizontal plane, and also includes a movable plate (11) slidably connected to the warp guide column (111) and the weft guide column (112) respectively. The upper mold assembly (2) includes a pressure plate (21) and an upper template (22) elastically connected to the pressure plate (21). The pressure plate (21) is provided with a hydraulic drive component (211). The upper template (22) is provided with a flat-topped pyramidal groove (2201), and the small diameter end size of the flat-topped pyramidal groove (2201) is consistent with the punch size on the movable plate (11).

2. The keyboard production mold positioning device according to claim 1, characterized in that, The hydraulic drive component (211) is connected to the pressure plate (21) through multiple sets of locking components, and the upper template (22) is slidably connected to the pressure plate (21) through the guide rod (212). The cross section of the guide rod (212) is T-shaped, and a return spring is provided between the guide rod (212) and the pressure plate (21). The return spring is used to always pull the upper template (22) toward the pressure plate (21) and fit it against the pressure plate (21).

3. The keyboard production mold positioning device according to claim 1, characterized in that, Elastic elements (113) are fitted on the warp guide column (111) and the weft guide column (112), and the elastic elements (113) abut against the warp guide column (111) and the movable plate (11) and against the weft guide column (112) and the movable plate (11).

4. The keyboard production mold positioning device according to claim 3, characterized in that, The number of the warp guide posts (111) and the weft guide posts (112) is N, and N is an even number. Adjacent warp guide posts (111) and adjacent weft guide posts (112) are connected by a horizontal plate, and the side of the horizontal plate near the positioning frame (1) is provided with ball bearings.

5. A keyboard production mold positioning device according to claim 1, characterized in that, It also includes a base (3), on which a connecting plate (31) is rotatably mounted, and a spring (32) is provided between the connecting plate (31) and the base (3). The side of the spring (32) away from the rotation axis is rotatably connected to the positioning frame (1) through a connecting block (101).

6. A keyboard production mold positioning device according to claim 5, characterized in that, The angle between the connecting plate (31) and the horizontal plane is a, and a < 90°.

7. A keyboard production mold positioning device according to claim 1, characterized in that, The upper template (22) is provided with a guide block (221), the pressure plate (21) is provided with a vertical guide plate (213) parallel to the guide block (221), and the pressure plate (21) is provided with a horizontal guide plate (214) that cooperates with the guide block (221) and the vertical guide plate (213) respectively.

8. A keyboard production mold positioning device according to claim 7, characterized in that, The bottom of the vertical guide plate (213) is provided with a rotating roller (2131).

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