A hard disk shell rapid prototyping stamping die
By designing a rapid prototyping stamping die for hard drive casings, the problems of high equipment cost and slow production speed in existing technologies have been solved, realizing one-time forming and automated production of hard drive casings, improving production efficiency and die flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KUNSHAN YIJIEXIN ACCURACY SHEET METAL CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-09
Smart Images

Figure CN224333248U_ABST
Abstract
Description
Technical Field
[0001] This utility model mainly relates to the technical field of casing stamping dies, specifically a rapid prototyping stamping die for hard disk casings. Background Technology
[0002] The hard drive casing is the external protective device for a hard drive, playing a crucial role in data storage and device use. The internal mechanical structure of a hard drive is sensitive to vibration, and the casing absorbs impact through cushioning materials, reducing the risk of the hard drive's read / write head colliding with the platters. The sealed design prevents dust and moisture from entering the hard drive, preventing circuit board corrosion or mechanical component jamming. In industrial environments or outdoor use, the casing can extend the life of the hard drive. Existing hard drive casings are usually made by stamping, but hard drive casings require double-sided stamping, which involves many steps and results in a low production speed.
[0003] According to application number 201721093231.7, a continuous die for stamping solid-state drive casing is provided, including an upper die assembly and a lower die assembly. The upper die assembly moves up and down in the vertical direction, and the lower die assembly is used to place the solid-state drive casing workpiece. The upper die assembly includes an upper die base and first to fourth upper dies arranged sequentially from left to right on the lower surface of the upper die base. The lower die assembly includes a lower die base and first to fourth lower dies arranged sequentially on the upper surface of the lower die base. The upper dies and the corresponding lower dies form the first to fourth dies, which are respectively used for punching, trimming, drawing, notching and rotary cutting of the workpiece.
[0004] The aforementioned document describes a process that uses multiple sets of molds working together to achieve continuous workpiece forming, resulting in high production efficiency. However, it also presents challenges such as high equipment costs and the need for additional equipment for material feeding and unloading. Utility Model Content
[0005] Based on this, the purpose of this utility model is to provide a rapid prototyping stamping die for hard disk casings, so as to solve the technical problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A rapid prototyping stamping die for a hard drive casing includes a lower die frame, an upper die frame suspended at the top of the lower die frame, a stripper plate fixedly installed at the top of the lower die frame, a lower die fixedly installed at the top of the stripper plate, an ejector component inside the lower die, a feeding guide rail fixedly installed at one end of the top of the lower die frame, a driving component on one side of the outer side of the feeding guide rail, a lifting plate fixedly installed on the bottom plate of the upper die frame, an upper die movably suspended at the bottom of the lifting plate, and a driving component at the end of the upper die frame near the driving component.
[0008] Preferably, the unloading plate has an inclined groove on one side, and a plurality of first unloading holes are opened in the middle of the unloading plate. The unloading plate has a rectangular groove opened in the middle of the lower mold frame to facilitate unloading from all the first unloading holes.
[0009] Preferably, the lower mold has two plastic grooves with one side open in the middle, and two plastic strips are fixedly installed at both ends of the plastic grooves. The top of the lower mold has a sheet metal through groove that connects to the feeding guide rail. The middle of the sheet metal through groove has multiple second unloading holes that connect to the first unloading hole. The feeding end of the sheet metal through groove has a cutting groove.
[0010] Preferably, the ejector component includes a mounting groove that extends through the middle of the plastic groove. An arc-shaped plate with one end hinged to the inside of the mounting groove is oscillatingly mounted inside the mounting groove. A small spring is fixedly connected to the bottom of the other end of the arc-shaped plate. A support block fixed to the top of the unloading plate is fixedly connected to the bottom of the small spring.
[0011] Preferably, two plastic plates matching the internal structure of the plastic groove are fixedly installed at the bottom of the upper mold, and a plurality of sliding holes aligned with the second unloading hole are opened in the middle of the upper mold. A punching rod with its top fixed to the lifting plate is slidably installed inside the sliding hole, and a strip cutter is fixedly installed at the bottom of the upper mold aligned with the cutter groove.
[0012] Preferably, the driving component includes two rotating rollers rotatably mounted inside the feed guide rail. Multiple magnetic rings are fixed on the sidewalls of the rotating rollers. A first gear is rotatably mounted on one side of the feed guide rail and connected to the central shaft of the upper rotating roller. An internal meshing ratchet is rotatably mounted on the sidewall of the feed guide rail near the lower mold. The outer rings of the first gear and the internal meshing ratchet are connected by a toothed belt. A linkage gear is fixedly connected to the other end of each of the two rotating rollers, and the two linkage gears mesh with each other.
[0013] Preferably, the driving component includes a bolt mounting plate welded to the bottom corner of the upper mold frame, a hollow pile is provided on one side of the feed guide rail, a second gear is rotatably installed inside the hollow pile, the second gear is fixedly connected to the central shaft of the internal meshing ratchet, a toothed plate with its bottom extending into the hollow pile and meshing with the second gear is bolted to one side of the bolt mounting plate, and multiple bolt holes are provided at the points where the bolt mounting plate and the toothed plate are aligned.
[0014] In summary, this technical solution has the following main advantages:
[0015] This invention allows for the pre-cutting of long sheet metal strips of the designed length during mold closing using a strip cutter, preparing for subsequent stamping. The design of the plastic plate and plastic groove enables the mold to press out the front and back shells of the hard drive housing. At the same time, the plastic strip shapes the sliding grooves on the hard drive housing, achieving one-time molding of the hard drive housing. The design of the punching rod allows for the punching of multiple screw holes on the long sheet metal strip, meeting the assembly requirements of the hard drive housing. The waste material from punching can be smoothly discharged, keeping the inside of the mold clean and smooth.
[0016] The pop-out component design allows for quick and easy ejection of the molded semi-finished hard drive casing during demolding, enabling rapid discharge along the inclined groove and improving production efficiency. The design of the drive and actuation components enables automatic and precise feeding during demolding, preventing slippage and insufficient feeding. Furthermore, by adjusting the installation positions of multiple bolt holes on the bolt mounting plate and toothed plate, the feeding sheet metal length can be adjusted to a certain extent, improving the flexibility and adaptability of the mold. Attached Figure Description
[0017] Figure 1 This is an isometric view of the overall structure of this utility model;
[0018] Figure 2 This is a rear view of the overall structure of this utility model;
[0019] Figure 3 This is a split view of the lower half of the structure of this utility model;
[0020] Figure 4 This is an enlarged view of part of the structure of this utility model;
[0021] Figure 5 This is an exploded view of the drive component structure of this utility model;
[0022] Figure 6 This is a bottom view of the upper part of the structure of this utility model.
[0023] Figure Descriptions: 10. Lower mold base; 11. Upper mold base; 12. Stripper plate; 13. Lower mold; 14. Pop-out component; 15. Feed guide rail; 16. Drive component; 17. Lifting plate; 18. Upper mold; 19. Driving component; 121. Inclined groove; 122. First stripper hole; 123. Rectangular groove; 131. Plastic groove; 132. Plastic strip; 133. Sheet metal through groove; 134. Second stripper hole; 135. Cutting groove; 141. Installation... 142. Groove; 143. Arc plate; 144. Small spring; 145. Support block; 181. Plastic plate; 182. Sliding hole; 183. Drilling rod; 184. Strip cutter; 161. Rotary roller; 162. Magnetic ring; 163. First gear; 164. Internal meshing ratchet; 165. Toothed belt; 166. Linkage gear; 191. Bolt mounting plate; 192. Hollow pile; 193. Second gear; 194. Toothed plate; 195. Bolt hole. Detailed Implementation
[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0025] Example
[0026] Please refer to the attached document carefully. Figure 1 , 3As shown in Figures 4 and 6, a rapid prototyping stamping die for a hard disk casing includes a lower die frame 10, an upper die frame 11 for suspension at the top of the lower die frame 10, a stripper plate 12 fixedly mounted on the top of the lower die frame 10, a lower die 13 fixedly mounted on the top of the stripper plate 12, an ejector component 14 inside the lower die 13, a feeding guide rail 15 fixedly mounted at one end of the top of the lower die frame 10, a driving component 16 on one side of the outer side of the feeding guide rail 15, and a lifting plate 17 fixedly mounted on the bottom plate of the upper die frame 11. The bottom is equipped with a movable upper mold 18, and the upper mold frame 11 has a driving component 19 near the driving component 16. A sloping groove 121 is provided on one side of the stripper plate 12, and multiple first stripping holes 122 are opened in the middle of the stripper plate 12. The stripper plate 12 also has a rectangular groove 123 in the middle of the lower mold frame 10 to facilitate unloading from all the first stripping holes 122. Two plastic grooves 131 with one-sided openings are opened in the middle of the lower mold 13, and two plastic strips 132 are fixedly installed at both ends of the plastic grooves 131. The top of the sheet metal through groove 133 is provided with a feeding guide rail 15. Multiple second discharge holes 134 are provided in the middle of the sheet metal through groove 133, connecting to the first discharge hole 122. A cutting groove 135 is provided at the feeding end of the sheet metal through groove 133. The ejector component 14 includes a mounting groove 141 that passes through the middle of the plastic groove 131. An arc-shaped plate 142, one end of which is hinged inside the mounting groove 141, is oscillatingly mounted inside the mounting groove 141. A small spring is fixedly connected to the bottom of the other end of the arc-shaped plate 142. 143, a small spring 143 is fixedly connected to a support block 144 fixed to the top of the unloading plate 12; two plastic plates 181 matching the internal structure of the plastic groove 131 are fixedly installed at the bottom of the upper mold 18; multiple sliding holes 182 aligned with the second unloading hole 134 are opened in the middle of the upper mold 18; a punching rod 183 fixed to the top of the lifting plate 17 is slidably installed inside the sliding hole 182; a strip cutter 184 is fixedly installed at the bottom of the upper mold 18 aligned with the cutter groove 135.
[0027] As described above, the lower mold base 10 and the upper mold base 11 are respectively equipped with three positioning rods and positioning sleeves at the three corners to facilitate precise mold closing. The upper mold 18 is equipped with spring rods that slide through the upper mold base 11 at the four corners of the top for compression mold closing. The strip cutter 184 is long enough to pre-cut the long strip of sheet metal of the designed length during mold closing. Then, the plastic plate 181 is pressed into the plastic groove 131. The two sets of plastic plates 181 and plastic grooves 131 respectively press out the front and back shells of the hard disk housing. The two plastic strips 132 shape the sliding grooves on the hard disk housing. At the same time, each The punching rod 183 passes through the sliding hole 182 and is pressed into the second unloading hole 134, punching multiple screw holes in the long sheet metal. The waste material from punching leaks out along the second unloading hole 134, the first unloading hole 122, and the rectangular groove 123. When the mold is closed, the small spring 143 is compressed, and the arc plate 142 swings and sinks into the mounting groove 141 without affecting the molding. When the mold is demolded, the small spring 143 rebounds, and one end of the arc plate 142 swings out of the mounting groove 141, popping out the semi-finished hard disk shell that has been molded, and quickly exiting along the inclined groove 121.
[0028] Please refer to the attached document carefully. Figure 1 , 2 As shown in Figures 3, 5, and 6, the driving component 16 includes two rotating rollers 161 rotatably mounted inside the feed guide rail 15. Multiple magnetic rings 162 are fixed to the side walls of the rotating rollers 161. A first gear 163, rotatably connected to the central shaft of the upper rotating roller 161, is rotatably mounted on one side of the feed guide rail 15. An internally meshing ratchet 164, rotatably mounted on the side wall of the feed guide rail 15, is located near the lower mold 13 on the side of the first gear 163. The outer rings of the first gear 163 and the internally meshing ratchet 164 are connected by a toothed belt 165. A connecting rod is fixedly connected to the other end of each of the two rotating rollers 161. The drive gear 166 has two linkage gears 166 meshing with each other; the driving component 19 includes a bolt mounting plate 191 welded to the bottom corner of one corner of the upper mold frame 11, a hollow pile 192 is provided on one side of the feed guide rail 15, a second gear 193 is rotatably installed inside the hollow pile 192, the second gear 193 is fixedly connected to the central shaft of the internal meshing ratchet 164, a toothed plate 194 with its bottom extending into the hollow pile 192 and meshing with the second gear 193 is bolted to one side of the bolt mounting plate 191, and multiple bolt holes 195 are provided at the alignment of the bolt mounting plate 191 and the toothed plate 194.
[0029] As described above, the magnetic ring 162 is used to increase the friction of clamping the long sheet metal and prevent slippage during feeding, which would result in insufficient feeding. During demolding, the upper mold frame 11 is raised, and the toothed plate 194 is driven to rise through the bolt mounting plate 191. The toothed plate 194 meshes with the second gear 193, which in turn drives the internal meshing ratchet 164 to rotate forward. This, in turn, drives the first gear 163 to rotate through the toothed belt 165, causing the upper roller 161 to rotate. Since the two linkage gears 166 mesh and rotate, they drive the lower roller 161 to rotate in the opposite direction. The two rollers 161 together push the long strip... The sheet metal enters the sheet metal through groove 133. Utilizing the characteristic that the internal meshing ratchet 164 can only rotate in the forward direction, the toothed plate 194 will not pull the long sheet metal out of the sheet metal through groove 133 in the reverse direction when the mold is closed, thus realizing the function of automatic and precise feeding during demolding. Only the bottom half of the toothed plate 194 has meshing teeth. When it is necessary to adjust the feeding length, the effective distance of the meshing teeth of the toothed plate 194 can be adjusted by adjusting the installation position of the bolt mounting plate 191 and the multiple bolt holes 195 on the toothed plate 194, thereby realizing the function of adjusting the feeding sheet metal length to a certain extent.
[0030] The above embodiments are only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the scope of protection of this utility model.
Claims
1. A rapid prototyping stamping die for a hard disk casing, comprising a lower die frame (10), wherein a suspended upper die frame (11) is provided on the top of the lower die frame (10), characterized in that, The lower mold frame (10) is fixedly installed with a stripper plate (12) on top, and a lower mold (13) is fixedly installed on top of the stripper plate (12). The lower mold (13) is provided with an ejector component (14) inside. A feeding guide rail (15) is fixedly installed at one end of the top of the lower mold frame (10). A driving component (16) is provided on one side of the outside of the feeding guide rail (15). A lifting plate (17) is fixedly installed on the bottom plate of the upper mold frame (11). An upper mold (18) is movably lifted at the bottom of the lifting plate (17). A driving component (19) is provided at one end of the upper mold frame (11) near the driving component (16).
2. The rapid prototyping stamping die for a hard disk casing according to claim 1, characterized in that, The unloading plate (12) has a sloping groove (121) on one side, and a plurality of first unloading holes (122) are opened in the middle of the unloading plate (12). The unloading plate (12) has a rectangular groove (123) opened in the middle of the lower mold frame (10) to facilitate unloading from all the first unloading holes (122).
3. The rapid prototyping stamping die for a hard disk casing according to claim 2, characterized in that, The lower mold (13) has two plastic grooves (131) with one side open in the middle. Two plastic strips (132) are fixedly installed at both ends of the plastic grooves (131). The lower mold (13) has a sheet metal through groove (133) at the top that connects to the feeding guide rail (15). The sheet metal through groove (133) has multiple second unloading holes (134) in the middle that connect to the first unloading hole (122). The feeding end of the sheet metal through groove (133) has a cutting groove (135).
4. The rapid prototyping stamping die for a hard disk casing according to claim 3, characterized in that, The pop-out component (14) includes a mounting groove (141) that passes through the middle of the plastic groove (131). An arc-shaped plate (142) with one end hinged inside the mounting groove (141) is oscillatingly mounted inside the mounting groove (141). A small spring (143) is fixedly connected to the bottom of the other end of the arc-shaped plate (142). A support block (144) fixed to the top of the unloading plate (12) is fixedly connected to the bottom of the small spring (143).
5. The rapid prototyping stamping die for a hard disk casing according to claim 3, characterized in that, Two plastic plates (181) matching the internal structure of the plastic groove (131) are fixedly installed at the bottom of the upper mold (18). Multiple sliding holes (182) aligned with the second unloading hole (134) are opened in the middle of the upper mold (18). A punching rod (183) with its top fixed on the lifting plate (17) is slidably installed inside the sliding hole (182). A strip cutter (184) is fixedly installed at the bottom of the upper mold (18) aligned with the cutter groove (135).
6. The rapid prototyping stamping die for a hard disk casing according to claim 1, characterized in that, The driving component (16) includes two rotating rollers (161) that are rotatably mounted inside the feed guide rail (15). Multiple magnetic rings (162) are fixed on the side wall of the rotating rollers (161). A first gear (163) is rotatably mounted on one side of the feed guide rail (15) and connected to the central shaft of the upper rotating roller (161). An internal meshing ratchet (164) is rotatably mounted on the side wall of the feed guide rail (15) near the lower mold (13). The outer rings of the first gear (163) and the internal meshing ratchet (164) are connected by a toothed belt (165). A linkage gear (166) is fixedly connected to the other end of each of the two rotating rollers (161), and the two linkage gears (166) mesh with each other.
7. The rapid prototyping stamping die for a hard disk casing according to claim 6, characterized in that, The driving component (19) includes a bolt mounting plate (191) welded to the bottom corner of the upper mold frame (11). A hollow pile (192) is provided on one side of the feed guide rail (15). A second gear (193) is rotatably installed inside the hollow pile (192). The second gear (193) is fixedly connected to the central shaft of the internal meshing ratchet (164). A toothed plate (194) with its bottom extending into the hollow pile (192) and meshing with the second gear (193) is bolted to one side of the bolt mounting plate (191). Multiple bolt holes (195) are provided at the alignment points of the bolt mounting plate (191) and the toothed plate (194).