Mould for glasses accessories and forming process

Abstract

The invention relates to the technical field of molds, and discloses a mold for glasses accessories and a forming process, the mold comprises an upper mold structure and a lower mold structure located below the upper mold structure, and the upper mold structure is sequentially provided with a shaping assembly used for shaping a blank and a cutting assembly used for cutting off rim charges of the blank in the length direction; the lower die structure comprises a lower die base, a sliding groove is formed in the lower die base, the sliding groove comprises a shaping area and a cutting area, a base is arranged in the sliding groove in a sliding mode, and a containing cavity used for containing a blank is formed in the upper end face of the base. And a driving structure capable of driving the base to do reciprocating motion between the shaping area and the cutting area is arranged on the lower die holder. The production device has the effect of improving the production efficiency of the decorative accessories.

Description

Technical Field

[0001] The present application relates to the technical field of molds, and particularly relates to a mold for spectacle accessories and a molding process. Background Art

[0002] Glasses are one of the commonly used items in people's lives, and their product shapes are diverse.

[0003] In related technologies, such as Figure 1 the decorative accessories for temple arms shown. The decorative accessories include an accessory body and a plurality of positioning posts. A hollow structure 41 is provided on the accessory body, and the accessory body is made from a blank 4. The positioning posts are formed by milling a frustum block 42. A threaded hole is provided on the end face of the positioning post away from the accessory body. An inclined surface 43 is provided above the accessory body, a flat surface is provided below the accessory body, and the positioning posts are provided on the flat surface.

[0004] The decorative accessories include a plurality of positioning posts, resulting in a large thickness of the blank processed into the decorative accessories. It is difficult to achieve stamping processing of the blank using equipment with a small pressure. In related technologies, casting is usually used to produce the decorative accessories, and its processing efficiency is low. Summary of the Invention

[0005] In order to improve the production efficiency of the decorative accessories, the present application provides a mold for spectacle accessories and a molding process.

[0006] A mold for spectacle accessories provided by the present application adopts the following technical solutions: A mold for spectacle accessories includes an upper mold structure and a lower mold structure located below the upper mold structure. The upper mold structure is sequentially provided with a shaping component for shaping the blank and a cutting component for cutting off the edge material of the blank along the length direction. The lower mold structure includes a lower mold base. A chute is provided on the lower mold base. The chute includes a shaping area and a cutting area. A base is slidably provided in the chute. A receiving cavity for placing the blank is provided on the upper end surface of the base. A driving structure is provided on the lower mold base that can drive the base to reciprocate between the shaping area and the cutting area.

[0007] By adopting the above technical solutions, first place the blank into the receiving cavity of the base, then the driving structure moves the base to the shaping component, the upper mold structure closes the mold towards the lower mold structure, so that the shaping component shapes the blank, the upper mold structure and the lower mold structure are separated, then the driving structure moves the base to the cutting component, the upper mold structure closes the mold towards the lower mold structure, so that the shaping component cuts off the edge material of the blank, the upper mold structure and the lower mold structure are separated, and finally take out the processed workpiece from the base to realize the shaping work of the blank, improving the production efficiency of the decorative accessories.

[0008] Optionally, the driving structure includes a mounting frame horizontally slidably disposed on the side surface of the lower die base and a round shaft disposed on the side surface of the lower die base. An installation hole is formed on the end surface of the mounting frame facing the lower die base. An irregular gear is sleeved outside the round shaft. A first rack is disposed on the upper inner wall of the installation hole, and a second rack is disposed on the lower inner wall of the installation hole. Both the first rack and the second rack can mesh with the irregular gear. An installation rod connecting the two is disposed between the mounting frame and the base. The upper die structure includes a driving component capable of driving the irregular gear to rotate.

[0009] By adopting the above technical solution, when the upper die structure and the lower die structure are not fully closed, the driving component drives the irregular gear to rotate. The irregular gear drives the operation frame and the base to move through the first rack / second rack, so that the base is in the plastic forming area / cutting area, changing the process performed by the next closing operation.

[0010] Optionally, the driving component includes a linkage gear sleeved outside the round shaft and a linkage rack disposed on the upper die structure. The linkage rack and the linkage gear mesh with each other. A one-way component connecting the two is disposed between the linkage gear and the irregular gear. The one-way component enables the irregular gear to rotate in one direction.

[0011] By adopting the above technical solution, there are two action processes. The first process is that when the upper die structure closes towards the lower die structure, it drives the linkage rack to descend. Since the linkage rack meshes with the linkage gear, the linkage rack drives the linkage gear to rotate. Due to the limitation of the one-way component, the irregular gear cannot rotate, that is, the position of the base remains unchanged. When the upper die structure and the lower die structure are opened, the linkage rack drives the linkage gear to rotate in the reverse direction. The linkage gear drives the irregular gear to rotate through the one-way component. The irregular gear drives the operation frame and the base to move through the first rack / second rack. The second process is that when the upper die structure closes towards the lower die structure, it drives the linkage rack to descend. Since the linkage rack meshes with the linkage gear, the linkage rack drives the linkage gear to rotate. The linkage gear drives the irregular gear to rotate through the one-way component. The irregular gear drives the operation frame and the base to move through the first rack / second rack. When the upper die structure and the lower die structure are opened, the linkage rack drives the linkage gear to rotate in the reverse direction. Due to the limitation of the one-way component, the irregular gear cannot rotate, that is, the position of the base remains unchanged.

[0012] Optionally, the upper die structure includes an upper die base, a punch fixing plate disposed below the upper die base, an upper template disposed below the punch fixing plate, and an upper die spring disposed between the punch fixing plate and the upper template. The plastic forming component includes a plastic forming punch inserted into the punch fixing plate. A first through hole through which the plastic forming punch can pass is formed on the upper template. A plastic forming groove is formed on the lower end surface of the plastic forming punch. A frustum groove is formed in the accommodating cavity.

[0013] By adopting the above technical solution, when the base is in the shaping area and the upper die structure is closed towards the lower die structure, the upper template first contacts the lower die base. As the upper die structure continues to descend, after the upper template is limited by the lower die base and cannot descend further, the shaping punch further descends, so that the shaping punch extrudes the blank, forming an inclined surface on the blank. During the process of the shaping punch extruding the blank, part of the blank enters the frustum groove, forming a frustum block under the blank.

[0014] Optionally, the blanking component includes a blanking punch passing through the punch fixing plate. A second perforation through which the blanking punch can pass is formed on the upper template. A through hole through which the blanking punch can pass is formed on the bottom wall of the accommodating cavity. A blanking hole capable of aligning with the second perforation is formed on the bottom wall of the sliding groove.

[0015] By adopting the above technical solution, when the base is in the blanking area and the upper die structure is closed towards the lower die structure, the upper template first contacts the lower die base. As the upper die structure continues to descend, after the upper template is limited by the lower die base and cannot descend further, the blanking punch further descends to cut the side material of the blank, and the cut waste is discharged through the through hole and the blanking hole.

[0016] Optionally, the base includes an operation frame. The accommodating cavity is arranged on the operation frame. Two operation blocks are arranged below the operation frame. The two operation blocks are distributed along the width direction of the lower die structure. The accommodating cavity is located between the two operation blocks. An operation rod in the horizontal direction of the accommodating cavity is rotatably connected between the two operation blocks. The arrangement positions of the operation rod and the accommodating cavity are consistent with the arrangement positions of the blanking component and the shaping component. An operation plate capable of blocking the lower opening of the accommodating cavity is sleeved outside the operation rod. The frustum groove is arranged on the operation plate. A limiting component for restricting the rotation of the operation plate is arranged on the operation frame. An outlet hole through which the operation plate can turn in is formed on the bottom wall of the sliding groove.

[0017] By adopting the above technical solution, after the base moves above the outlet hole, the limiting component releases the locking of the operation plate, and the operation plate rotates into the outlet hole. The operation plate no longer blocks the lower end face of the accommodating cavity, and the workpiece enters the outlet hole from the accommodating cavity, thereby realizing workpiece unloading. After the workpiece unloading is completed, the base continues to move towards the shaping area. The operation plate first contacts the junction of the outlet hole and the sliding groove. As the base continues to move, the operation plate is limited and rotates in the reverse direction until the operation plate re-blocks the lower opening of the accommodating cavity.

[0018] Optionally, an operating groove is provided on the side of the operating frame, and the operating groove is located on the side of the accommodating chamber away from the operating rod. The limit assembly includes a limit plate rotatably connected to one side of the operating frame and a limit spring arranged in the operating groove. The limit plate is located on the side of the accommodating chamber away from the operating rod, and a limit bar located below the operating frame is provided on the side of the limit plate facing the accommodating chamber. A limit groove is provided on the operating plate for inserting the limit bar, and the limit spring is in a stretched state. One end of the limit spring is fixedly connected to the bottom wall of the operating groove, and the other end of the limit spring is fixedly connected to the limit plate. An unlocking assembly that can drive the limit plate to rotate is provided on the lower mold base.

[0019] By adopting the above technical solution, when the base moves directly above the discharge hole, the unlocking component drives the limit plate to rotate so that the limit bar no longer disengages from the limit groove, that is, the limit bar no longer limits the operating plate, so the operating plate can be rotated into the discharge hole, allowing the workpiece to be unloaded.

[0020] Optionally, a fixed groove is provided on the bottom wall of the slide groove, and the unlocking assembly includes an electromagnet, a connecting spring and an iron block arranged in the fixed groove, one end of the connecting spring is fixedly connected to the bottom wall of the fixed groove, the other end of the connecting spring is connected to the iron block, the electromagnet is fixedly connected to the bottom wall of the fixed groove, the electromagnet is located below the iron block, the electromagnet can drive the iron block to descend, and a clearance groove for inserting the iron block is provided on the lower end surface of the operating block, and the clearance groove passes through the operating block along the length direction of the lower mold structure.

[0021] By adopting the above technical solution, when the electromagnet is energized, the electromagnet attracts the iron block, so that the iron block is completely embedded in the fixed groove, and at the same time the connecting spring is compressed and deformed, and the base will not be interfered with by the iron block when it moves from the shaping area to the cutting area; when the electromagnet is de-energized, the connecting spring drives the iron block to extend out of the fixed groove, and the base moves from the cutting area to the shaping area until the limit plate collides with the iron block. As the base continues to move, the limit plate rotates, and then the limit bar is disengaged from the limit groove and the operating panel is unlocked, so that the operating panel rotates downward into the discharge hole due to its own gravity, so that the workpiece enters the discharge hole from the accommodating cavity, thereby realizing the unloading of the workpiece.

[0022] A molding process for a mold for eyeglass accessories comprises the following steps: Step 1: laser cutting process, placing the blank in a laser device, and the laser device processes the outer contour of the eyeglass accessory on the blank, and roughly processes the hollow part of the eyeglass accessory; Step 2: stamping process, placing the blank in a mold for eyeglass accessories, and using a punch press to close and separate the upper mold structure and the lower mold structure to shape the blank; Step three: cleaning process to remove oil stains on the blank; Step 4: Punching process, punching the blank; Step 5: Milling process, placing the blank on a milling machine, and forming positioning posts and planes on the blank through the milling machine; Step 6: Tapping process, tapping the positioning posts.

[0023] By adopting the above technical solutions, the forming of the spectacle accessories is divided into multiple steps, and each step is independent. The above steps can be carried out synchronously, saving the processing time of the product and improving the production efficiency of the product; enabling small-pressure equipment to achieve stamping processing of large-thickness products; the bottom surface of the blank is a plane, and positioning is carried out with the plane, so that during the plastic shaping process and punching process of the blank, the flatness of the inclined surface formed on the blank is better, improving the precision of the product.

[0024] Optionally, in Step 2, the plastic shaping of the blank specifically adopts the following steps: Step a: Move the base to the plastic shaping area, and the punching press closes and opens the upper die structure and the lower die structure. The plastic shaping component forms an inclined surface on the blank, and the bottom of the blank is extruded to form a frustum block; Step b: The driving structure drives the base to move, and moves the base from the plastic shaping area to the blank cutting area; Step c: The punching press closes and opens the upper die structure and the lower die structure, and the blank cutting component removes the side material on the blank; Step d: The driving structure drives the base to move, and moves the base from the blank cutting area to the plastic shaping area; Step e: Repeat Steps a to d until the blank is formed.

[0025] By adopting the above technical solutions, the plastic shaping process and the blank cutting process are alternately used to process the blank. The staff does not need to transfer the blank to other processing equipment midway, saving the time for blank transfer and further improving the production efficiency of the blank.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. First, place the blank in the accommodation cavity of the base, then the driving structure moves the base to the plastic shaping component, the upper die structure closes with the lower die structure, so that the plastic shaping component shapes the blank, the upper die structure and the lower die structure are separated, then the driving structure moves the base to the blank cutting component, the upper die structure closes with the lower die structure, so that the plastic shaping component cuts off the side material on the blank, the upper die structure and the lower die structure are separated, and finally the processed workpiece is taken out from the base, realizing the plastic shaping work of the blank and improving the production efficiency of the decorative accessories; 2. The forming of spectacle accessories is divided into multiple steps, and each step is independent. The above steps can be carried out synchronously, saving the processing time of the product and improving the production efficiency of the product; enabling small-pressure equipment to achieve stamping processing of large-thickness products; the bottom surface of the blank is a plane, and positioning is carried out with the plane, so that during the blank shaping process and the punching process, the flatness of the inclined surface formed on the blank is better, improving the accuracy of the product. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 is the workpiece drawing after being processed by the mold; Figure 2 is the structural schematic diagram of the mold in Embodiment 1; Figure 3 is the schematic diagram of the base structure in Embodiment 1; Figure 4 is the partial structural schematic diagram highlighting the driving structure in Embodiment 1; Figure 5 is the schematic diagram of the base structure in Embodiment 2; Figure 6 is Figure 5 the partial sectional view along line A-A in Figure 7 is the schematic diagram highlighting the lower mold structure in Embodiment 2; Figure 8 is Figure 7 the partial sectional view along line B-B in

[0029] Reference signs: 1. Upper die structure; 11. Upper die base; 12. Punch fixing plate; 13. Upper die spring; 14. Upper template; 141. First perforation; 142. Second perforation; 15. Shaping component; 151. Shaping punch; 16. Material cutting component; 161. Material cutting punch; 2. Lower die structure; 21. Lower die base; 211. Slide groove; 2111. Shaping area; 2112. Material cutting area; 212. Slide hole; 213. Unloading hole; 214. Discharge hole; 215. Chamfer; 216. Fixed groove; 22. Base; 221. Accommodation cavity; 222. Frustum groove; 223. Through hole; 224. Operation frame; 2241. Operation groove; 225. Operation block; 2251. Relief groove; 226. Operating rod; 227. Operating plate; 2271. Limit groove; 228. Limit component; 2281. Limit plate; 2282. Limit strip; 2283. Limit spring; 229. Unlocking component; 2291. Electromagnet; 2292. Connecting spring; 2293. Iron block; 3. Driving structure; 31. Installation frame; 311. Installation hole; 32. First rack; 33. Second rack; 34. Round shaft; 35. Special-shaped gear; 36. Installation rod; 37. Driving component; 371. Linkage gear; 372. Linkage rack; 373. One-way component; 3731. One-way bearing; 4. Blank; 41. Hollow part; 42. Frustum block; 43. Inclined surface. Detailed implementation manners

[0030] The following further elaborates on this application in conjunction with the Figure 2 - 8 accompanying drawings.

[0031] This embodiment discloses a mold for glasses accessories. Refer to Figure 2 , a mold for glasses accessories, including an upper die structure 1 and a lower die structure 2, and the upper die structure 1 is located above the lower die structure 2.

[0032] Refer to Figure 2 , the upper die structure 1 includes an upper die base 11, a punch fixing plate 12, an upper die spring 13 and an upper template 14. The punch fixing plate 12 is located below the upper die base 11, and the punch fixing plate 12 is connected to the upper die base 11 by bolts.

[0033] Refer to Figure 2 , the upper template 14 is located below the punch fixing plate 12, and the punch fixing plate 12 is connected to the upper template 14 by bolts. The upper die spring 13 is arranged between the punch fixing plate 12 and the upper template 14, and the upper die spring 13 is in a compressed state. Further, the upper die spring 13 can be sleeved outside the bolts connecting the punch fixing plate 12 and the upper template 14.

[0034] Refer to Figure 2 , a shaping component 15 and a material cutting component 16 are arranged on the upper die structure 1, and the material cutting component 16 is located on one side of the shaping component 15 along the length direction of the upper die structure 1.

[0035] Referring to Figure 2 , the shaping component 15 is used to shape the blank 4, forming an inclined surface 43 on the blank 4 and forming a plurality of frustum blocks 42 below the blank 4. The frustum blocks 42 can be machined into positioning posts in subsequent milling processes. The shaping component 15 includes a shaping punch 151, the upper end of the shaping punch 151 is inserted into the punch fixing plate 12, and a shaping groove is provided on the lower end surface of the shaping punch 151. A first through hole 141 is provided on the upper template 14, and the first through hole 141 can allow the shaping punch 151 to pass through.

[0036] Referring to Figure 2 , the blanking component 16 is used to cut the side material of the blank 4. The blanking component 16 includes three blanking punches 161, the upper ends of the three blanking punches 161 are all inserted into the punch fixing plate 12, and the three blanking punches 161 are arranged in an array along the length direction of the upper die structure 1.

[0037] Referring to Figure 2 , a second through hole 142 is provided on the upper template 14, and the number of the second through holes 142 is the same as the number of the blanking punches 161. The second through hole 142 can allow the blanking punch 161 to pass through.

[0038] Referring to Figure 2 and Figure 3 , the lower die structure 2 includes a lower die base 21 and a base 22. A chute 211 is provided on the upper end surface of the lower die base 21, and the chute 211 runs through the lower die base 21 along the length direction of the lower die base 21. The chute 211 includes a shaping area 2111 and a blanking area 2112 along the length direction of the lower die base 21. The shaping area 2111 is located directly below the shaping punch 151. The blanking area 2112 is located directly below the blanking punch 161.

[0039] Referring to Figure 2 and Figure 3 , the base 22 is slidably arranged in the chute 211, a receiving cavity 221 is provided on the upper end surface of the base 22, and the blank 4 can be installed in the receiving cavity 221. A plurality of frustum grooves 222 are provided on the bottom wall of the receiving cavity 221. When the blank 4 is placed in the receiving cavity 221, the frustum grooves 222 are located directly below the blank 4.

[0040] Referring to Figure 2 and Figure 3 , three material passing holes 223 are provided on the bottom wall of the receiving cavity 221, and the material passing holes 223 can allow the blanking punches 161 to pass through. When the base 22 moves below the blanking component 16, the three material passing holes 223 are respectively aligned with one blanking punch 161. A discharge hole 213 is provided on the bottom wall of the chute 211, and the three material passing holes 223 are all aligned with the discharge hole 213.

[0041] Referring to Figure 2And Figure 3 When the base 22 is in the shaping area 2111, the upper die structure 1 and the lower die structure 2 are closed. An inclined surface 43 can be formed on the blank 4 within the shaping punch 151, and at the same time, part of the material is extruded into the frustum groove 222 to form a frustum block 42 on the blank 4. When the base 22 is in the material cutting area 2112, the upper die structure 1 and the lower die structure 2 are closed, and the material cutting punch 161 cuts off the side material on the blank 4.

[0042] Refer to Figure 3 And Figure 4 As shown in FIGS. and, a driving structure 3 is provided on the lower die base 21. The driving structure 3 is used to drive the base 22 to move within the sliding groove 211. The driving structure 3 includes a mounting frame 31, a first rack 32, a second rack 33, a circular shaft 34, a special-shaped gear 35, a mounting rod 36, and a driving assembly 37.

[0043] Refer to Figure 3 And Figure 4 As shown in FIGS. and, the mounting frame 31 is horizontally slidably arranged on one side of the lower die base 21 along the width direction. An installation hole 311 is formed in the end face of the mounting frame 31 facing the lower die base 21. The first rack 32 is fixedly connected to the upper inner wall of the installation hole 311, and the second rack 33 is fixedly connected to the lower inner wall of the installation hole 311.

[0044] Refer to Figure 3 And Figure 4 As shown in FIGS. and, a sliding hole 212 is formed in the inner wall of the sliding groove 211 close to the mounting frame 31. The sliding hole 212 is in the shape of a horizontal long strip hole. The mounting rod 36 is slidably arranged within the sliding hole 212. One end of the mounting rod 36 is fixedly connected to the base 22, and the other end of the mounting rod 36 is fixedly connected to the mounting frame 31.

[0045] Refer to Figure 3 And Figure 4 As shown in FIGS. and, the circular shaft 34 is fixedly connected to the end face of the lower die base 21 facing the mounting frame 31. The side of the circular shaft 34 away from the lower die base 21 passes through the installation hole 311. The special-shaped gear 35 is sleeved outside the circular shaft 34. The first rack 32 and the second rack 33 can be engaged with the special-shaped gear 35.

[0046] Refer to Figure 3 And Figure 4 As shown in FIGS. and, the driving assembly 37 is arranged on the upper die base 11. The driving assembly 37 is used to drive the circular shaft 34 to rotate. The driving assembly 37 includes a linkage gear 371, a linkage rack 372, and a one-way assembly 373. The linkage gear 371 is sleeved outside the circular shaft 34, and the linkage gear 371 and the linkage rack 372 are engaged with each other.

[0047] Refer to Figure 3 And Figure 4, the one-way component 373 is used to connect the linkage gear 371 and the special-shaped gear 35, so that the special-shaped gear 35 can only rotate in one direction. The one-way component 373 includes a one-way bearing 3731, and the one-way bearing 3731 is sleeved outside the round shaft 34. The inner ring of the one-way bearing 3731 is fixedly connected to the linkage gear 371, and the outer ring of the one-way bearing 3731 is fixedly connected to the special-shaped gear 35.

[0048] In this embodiment, when the upper die structure 1 closes the mold towards the lower die structure 2, it drives the linkage rack 372 to descend. Since the linkage rack 372 meshes with the linkage gear 371, the linkage rack 372 drives the linkage gear 371 to rotate. Due to the limitation of the one-way bearing 3731, the special-shaped gear 35 cannot rotate, that is, the position of the base 22 remains unchanged. When the upper die structure 1 and the lower die structure 2 open the mold, the linkage rack 372 drives the linkage gear 371 to rotate in the reverse direction. The linkage gear 371 drives the special-shaped gear 35 to rotate through the one-way component 373. The special-shaped gear 35 drives the operation frame 224 and the base 22 to move through the first rack 32 / second rack 33. In summary, during the process of the upper die structure 1 and the lower die structure 2 opening the mold, the horizontal movement of the operation frame 224 and the base 22 can be realized.

[0049] In other embodiments, when the upper die structure 1 closes the mold towards the lower die structure 2, it drives the linkage rack 372 to descend. Since the linkage rack 372 meshes with the linkage gear 371, the linkage rack 372 drives the linkage gear 371 to rotate. The linkage gear 371 drives the special-shaped gear 35 to rotate through the one-way component 373. The special-shaped gear 35 drives the operation frame 224 and the base 22 to move through the first rack 32 / second rack 33. When the upper die structure 1 and the lower die structure 2 open the mold, the linkage rack 372 drives the linkage gear 371 to rotate in the reverse direction. Due to the limitation of the one-way bearing 3731, the special-shaped gear 35 cannot rotate, that is, the position of the base 22 remains unchanged. In summary, during the process of the upper die structure 1 and the lower die structure 2 closing the mold, the horizontal movement of the operation frame 224 and the base 22 can be realized.

[0050] The implementation principle of Embodiment 1 is as follows: In the initial state, the base 22 is in the shaping area 2111. When processing the blank 4, in the first step, the upper die structure 1 and the lower die structure 2 are closed. The shaping punch 151 is inserted into the receiving cavity 221 and shapes the blank 4, forming an inclined surface 43 on the blank 4, and part of the material of the blank 4 enters the frustum groove 222 to form a frustum block 42. In the second step, the upper die structure 1 and the lower die structure 2 are opened. The upper template 14 drives the linkage rack 372 to rise, causing the linkage rack 372 to drive the linkage gear 371 to rotate. The linkage gear 371 drives the special-shaped gear 35 to rotate through the one-way bearing 3731. The special-shaped gear 35 drives the operation frame 224 to move through the first rack 32 / the second rack 33, moving the base 22 from the shaping area 2111 to the material cutting area 2112. In the third step, the upper die structure 1 and the lower die structure 2 are closed again. The material cutting punch 161 is inserted into the receiving cavity 221 to cut off the side material of the blank 4. This embodiment also discloses a forming process using a mold for spectacle accessories. A forming process using a mold for spectacle accessories includes the following steps: Step 1, laser cutting process. Place the blank 4 in a laser device. The laser device processes the outer contour of the spectacle accessory on the blank 4 and rough-processes the hollow part 41 of the spectacle accessory. Step 2, stamping process. Place the blank 4 in the mold for spectacle accessories. The punching press closes and opens the upper die structure 1 and the lower die structure 2 to shape the blank 4. Specifically, the following steps are adopted: Step a, move the base 22 to the shaping area 2111. The punching press closes and opens the upper die structure 1 and the lower die structure 2. The shaping component 15 forms an inclined surface 43 on the blank 4, and the bottom of the blank 4 is extruded to form a frustum block 42. Step b, the driving structure 3 drives the base 22 to move, moving the base 22 from the shaping area 2111 to the material cutting area 2112. Step c, the punching press closes and opens the upper die structure 1 and the lower die structure 2, enabling the material cutting component 16 to remove the side material on the blank 4. Step d, the driving structure 3 drives the base 22 to move, moving the base 22 from the material cutting area 2112 to the shaping area 2111. Step e, repeat steps a to d until the blank 4 is formed. Step 3, cleaning process, removing the oil stain on the blank 4. Step 4, punching process, punching the blank 4. Step 5, milling process. Place the blank 4 on a milling machine. The milling machine forms a positioning post and a plane on the blank 4. Step 6, tapping process, tapping the positioning post.

[0051] Embodiment 2 Refer toFigure 5 , the difference between this embodiment and Embodiment 1 is that the base 22 includes an operation frame 224, an operation block 225, an operation rod 226, an operation plate 227 and a limiting component 228. The accommodating cavity 221 is arranged on the operation frame 224. There are two operation blocks 225, both of which are fixedly connected to the lower end surface of the operation frame 224, and the two operation blocks 225 are distributed along the width direction of the lower die structure 2. The accommodating cavity 221 is located between the two operation blocks 225.

[0052] Refer to Figure 4 and Figure 5 , the operation rod 226 is rotatably connected between the two operation blocks 225, and the positional arrangement of the operation rod 226 and the accommodating cavity 221 is the same as the positional arrangement of the cutting component 16 and the shaping component 15. The operation plate 227 is sleeved outside the operation rod 226, and the operation plate 227 can block the lower opening of the accommodating cavity 221. The frustum-shaped groove 222 and the material passing hole 223 are both arranged on the operation plate 227.

[0053] Refer to Figure 5 and Figure 6 , the limiting component 228 is arranged on the operation frame 224, and the limiting component 228 is used to limit the rotation of the operation plate 227. The limiting component 228 includes a limiting plate 2281, a limiting strip 2282 and a limiting spring 2283.

[0054] Refer to Figure 5 and Figure 6 , the limiting plate 2281 is located on the side of the accommodating cavity 221 away from the operation rod 226, and the limiting plate 2281 is rotatably connected to the operation frame 224. The limiting strip 2282 is fixedly connected to the side facing the operation frame 224. The limiting strip 2282 can be inserted between the two operation plates 227. A limiting groove 2271 is formed on the operation plate 227, and the limiting plate 2281 can be inserted into the limiting groove 2271. When the limiting plate 2281 is inserted into the limiting groove 2271, the operation plate 227 can block the lower opening of the accommodating cavity 221.

[0055] Refer to Figure 5 and Figure 6 , an operation groove 2241 is formed on the side surface of the operation frame 224, the limiting spring 2283 is arranged in the operation groove 2241, and the limiting spring 2283 is in a stretched state. One end of the limiting spring 2283 is fixedly connected to the bottom wall of the operation groove 2241, and the other end of the limiting spring 2283 is fixedly connected to the limiting plate 2281.

[0056] Refer to Figure 2 and Figure 7The bottom wall of the chute 211 is provided with a discharge hole 214, which is located between the cutting component 16 and the shaping component 15. A chamfer 215 is provided at the junction of the discharge hole 214 and the chute 211, and the chamfer 215 is located on the side of the discharge hole 214 close to the shaping area 2111. An unlocking component 229 is provided on the lower die base 21. When the base 22 moves from the cutting area 2112 to the shaping area 2111, the unlocking component 229 can drive the limit plate 2281 to move in a direction away from the operating plate 227.

[0057] Reference Figure 6 and Figure 8 The bottom wall of the slide groove 211 is provided with a fixing groove 216, and the fixing groove 216 is located on one side of the discharge hole 214 along the width direction of the lower mold structure 2. The unlocking component 229 includes an electromagnet 2291, a connecting spring 2292 and an iron block 2293.

[0058] Reference Figure 8 The electromagnet 2291, the connecting spring 2292 and the iron block 2293 are all arranged in the fixing groove 216. The electromagnet 2291 is fixedly connected to the bottom wall of the fixing groove 216. The electromagnet 2291 is electrically connected to the power supply and the controller. The electromagnet 2291 is energized by the controller so that the electromagnet 2291 has magnetism.

[0059] Reference Figure 8 , the iron block 2293 is located above the electromagnet 2291. The connecting spring 2292 is sleeved outside the electromagnet 2291, one end of the connecting spring 2292 is fixedly connected to the bottom wall of the fixing groove 216, and the other end of the connecting spring 2292 is fixedly connected to the iron block 2293.

[0060] Reference Figure 5 and Figure 8 The end surface of the operating block 225 away from the operating frame 224 is provided with a clearance groove 2251, and the clearance groove 2251 penetrates the operating block 225 along the length direction of the lower mold structure 2. The clearance groove 2251 can be inserted into the iron block 2293.

[0061] Reference Figure 6 and Figure 8 When the electromagnet 2291 is not energized, one end of the iron block 2293 is inserted into the chute 211, so that when the base 22 moves from the cutting area 2112 to the shaping area 2111, the iron block 2293 is located on the moving path of the limit plate 2281. When the electromagnet 2291 is energized, the electromagnet 2291 attracts the iron block 2293, so that the iron block 2293 moves toward the electromagnet 2291, and the iron block 2293 is completely embedded in the chute 211.

[0062] The implementation principle of Embodiment 2 is as follows: Before the base 22 moves from the shaping area 2111 towards the material cutting area 2112, the electromagnet 2291 is energized, and the electromagnet 2291 attracts the iron block 2293, causing the iron block 2293 to move towards the electromagnet 2291, and the iron block 2293 is completely embedded in the chute 211.

[0063] During the process of the base 22 moving from the shaping area 2111 towards the material cutting area 2112, the limiting plate 2281 is not blocked by the iron block 2293, and the base 22 can smoothly reach the material cutting area 2112.

[0064] Before the base 22 moves from the material cutting area 2112 towards the shaping area 2111, the electromagnet 2291 is de-energized, and the electromagnet 2291 no longer attracts the iron block 2293. The connecting spring 2292 resets and drives the iron block 2293 to extend into the chute 211.

[0065] During the process of the base 22 moving from the shaping area 2111 towards the material cutting area 2112, the limiting plate 2281 rotates due to the blockage of the iron block 2293, causing the limiting strip 2282 to disengage from the limiting groove 2271. The operating plate 227 that is no longer limited by the limiting strip 2282 rotates downward, so that the operating plate 227 no longer blocks the lower opening of the accommodating cavity 221, enabling the workpiece to disengage from the base 22 and be discharged from the discharge hole 214. After the workpiece is discharged, the base 22 continues to move towards the shaping area 2111. The operating plate 227 first contacts the chamfer 215. As the base 22 continues to move, the operating plate 227 rotates in the reverse direction due to the limitation of the chamfer 215, causing the operating plate 227 to block the lower opening of the accommodating cavity 221 again.

[0066] Unless otherwise defined, the technical terms or scientific terms used in this application shall have the ordinary meanings understood by those of ordinary skill in the field to which this application belongs. The terms "first", "second", "third" and similar terms used in the specification and claims of this application do not denote any order, quantity or importance, but are only used to distinguish different components. The terms such as "a" or "one" do not denote a quantity limitation either, but mean that there is at least one. The terms such as "comprising" or "including" mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. The terms such as "upper", "lower", "left", "right" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.

[0067] The above are only the preferred embodiments of this application and are not used to limit this application. Any modifications, equivalent replacements, improvements, etc. made within the design concept of this application shall be included within the protection scope of this application.

Claims

1. A mold for eyeglass accessories, comprising an upper mold structure (1) and a lower mold structure (2) located below the upper mold structure (1), characterized in that: The upper die structure (1) is provided with a shaping component (15) for shaping a blank (4) and a cutting component (16) for cutting off the edge of the blank (4) in sequence along the length direction; the lower die structure (2) comprises a lower die base (21), a slide groove (211) is provided on the lower die base (21), the slide groove (211) comprises a shaping area (2111) and a cutting area (2112), a base (22) is slidably provided in the slide groove (211), an accommodating cavity (221) for placing the blank (4) is provided on the upper end surface of the base (22), and a driving structure (3) capable of driving the base (22) to reciprocate between the shaping area (2111) and the cutting area (2112) is provided on the lower die base (21).

2. The mold for eyeglass accessories according to claim 1, characterized in that: The driving structure (3) comprises a mounting frame (31) horizontally slidably arranged on the side of the lower die base (21) and a round shaft (34) arranged on the side of the lower die base (21); the mounting frame (31) is provided with a mounting hole (311) on the end surface facing the lower die base (21); the round shaft (34) is provided with a special-shaped gear (35) on its outer sleeve; the upper inner wall of the mounting hole (311) is provided with a first rack (32); the lower inner wall of the mounting hole (311) is provided with a second rack (33); both the first rack (32) and the second rack (33) are capable of meshing with the special-shaped gear (35); a mounting rod (36) connecting the mounting frame (31) and the base (22) is provided between the two; and the upper die structure (1) comprises a driving assembly (37) capable of driving the special-shaped gear (35) to rotate.

3. The mold for eyeglass accessories according to claim 2, characterized in that: The driving assembly (37) comprises a linkage gear (371) sleeved outside the circular shaft (34) and a linkage rack (372) arranged on the upper mold structure (1); the linkage rack (372) and the linkage gear (371) are meshed with each other; a one-way assembly (373) is arranged between the linkage gear (371) and the special-shaped gear (35) to connect the two; the one-way assembly (373) enables the special-shaped gear (35) to rotate in one direction.

4. The mold for eyeglass accessories according to claim 1, characterized in that: The upper mold structure (1) comprises an upper mold base (11), a punch fixing plate (12) arranged below the upper mold base (11), an upper mold plate (14) arranged below the punch fixing plate (12), and an upper mold spring (13) arranged between the punch fixing plate (12) and the upper mold plate (14); the shaping component (15) comprises a shaping punch (151) inserted into the punch fixing plate (12); the upper mold plate (14) is provided with a first through hole (141) through which the shaping punch (151) can pass; the lower end surface of the shaping punch (151) is provided with a shaping groove; and the accommodating cavity (221) is provided with a truncated cone groove (222).

5. The mold for eyeglass accessories according to claim 4, characterized in that: The cutting component (16) comprises a cutting punch (161) which is penetrated on a punch fixing plate (12); the upper mold plate (14) is provided with a second through hole (142) through which the cutting punch (161) can pass; the bottom wall of the accommodating cavity (221) is provided with a through hole (223) through which the cutting punch (161) can pass; and the bottom wall of the slide groove (211) is provided with a discharge hole (213) which can be aligned with the second through hole (142).

6. The mold for eyeglass accessories according to claim 5, characterized in that: The base (22) comprises an operating frame (224), the accommodating cavity (221) is arranged on the operating frame (224), two operating blocks (225) are arranged below the operating frame (224), the two operating blocks (225) are distributed along the width direction of the lower mold structure (2), the accommodating cavity (221) is located between the two operating blocks (225), and the two operating blocks (225) are rotatably connected to an operating rod (226) located in the horizontal direction of the accommodating cavity (221), and the operating rod (226) and the accommodating cavity (221) are connected to each other. The position arrangement of the cavity (221) is consistent with the position arrangement of the cutting component (16) and the shaping component (15); the operating rod (226) is provided with an operating plate (227) capable of blocking the opening below the accommodating cavity (221); the truncated cone groove (222) is provided on the operating plate (227); the operating frame (224) is provided with a limit assembly (228) for limiting the rotation of the operating plate (227); and the bottom wall of the slide groove (211) is provided with a discharge hole (214) capable of allowing the operating plate (227) to rotate into.

7. The mold for eyeglass accessories according to claim 6, characterized in that: An operating groove (2241) is provided on the side of the operating frame (224), and the operating groove (2241) is located on a side of the accommodating chamber (221) away from the operating rod (226). The limiting assembly (228) comprises a limiting plate (2281) rotatably connected to one side of the operating frame (224) and a limiting spring (2283) arranged in the operating groove (2241), and the limiting plate (2281) is located on a side of the accommodating chamber (221) away from the operating rod (226). The limiting plate (2281) is arranged on a side of the accommodating chamber (221) away from the operating rod (226). A limit bar (2282) is arranged below the operating frame (224); a limit slot (2271) is provided on the operating plate (227) for the limit bar (2282) to be inserted; the limit spring (2283) is in a stretched state; one end of the limit spring (2283) is fixedly connected to the bottom wall of the operating slot (2241); the other end of the limit spring (2283) is fixedly connected to the limit plate (2281); and an unlocking component (229) is arranged on the lower die base (21) for driving the limit plate (2281) to rotate.

8. The mold for eyeglass accessories according to claim 7, characterized in that: The bottom wall of the slide groove (211) is provided with a fixed groove (216); the unlocking assembly (229) comprises an electromagnet (2291), a connecting spring (2292) and an iron block (2293) arranged in the fixed groove (216); one end of the connecting spring (2292) is fixedly connected to the bottom wall of the fixed groove (216); the other end of the connecting spring (2292) is connected to the iron block (2293); the electromagnet (2291) is fixedly connected to the bottom wall of the fixed groove (216); the electromagnet (2291) is located below the iron block (2293); the electromagnet (2291) can drive the iron block (2293) to descend; the lower end surface of the operating block (225) is provided with a clearance groove (2251) into which the iron block (2293) can be inserted; the clearance groove (2251) penetrates the operating block (225) along the length direction of the lower mold structure (2).

9. A molding process for a mold for eyeglass accessories, characterized in that: The steps include: Step 1, laser cutting process, placing the blank (4) in a laser device, and the laser device processes the outer contour of the eyeglass accessory on the blank (4), and roughly processes the hollow part (41) of the eyeglass accessory; Step 2: a stamping process, wherein the blank (4) is placed in a mold for eyeglass accessories according to any one of claims 1 to 8, and the upper mold structure (1) and the lower mold structure (2) are joined and separated by a punching machine to shape the blank (4); Step 3: cleaning process to remove oil stains on the blank (4); Step 4: punching process, punching the blank (4); Step 5, milling process, placing the blank (4) on a milling machine, and forming a positioning column and a plane on the blank (4) by the milling machine; Step six, tapping process, tapping on the positioning column.

10. The molding process of the mold for eyeglass accessories according to claim 9, characterized in that: In step 2, the shaping of the blank (4) is specifically carried out by the following steps: Step a, moving the base (22) to the shaping area (2111), the punching machine closes and separates the upper die structure (1) and the lower die structure (2), and the shaping component (15) forms an inclined surface (43) on the blank (4), so that the bottom of the blank (4) is extruded to form a truncated cone block (42); Step b, the driving structure (3) drives the base (22) to move, and moves the base (22) from the shaping area (2111) to the cutting area (2112); Step c, a punch press closes and separates the upper die structure (1) and the lower die structure (2), so that the cutting assembly (16) removes the edge material on the blank (4); Step d, the driving structure (3) drives the base (22) to move, and moves the base (22) from the cutting area (2112) to the shaping area (2111); Step e, repeating steps a to d until the blank (4) is formed.

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