A mold and molding process for glasses accessories

Abstract

The present application relates to the technical field of molds, and discloses a mold and molding process for eyeglass accessories, which includes an upper mold structure and a lower mold structure located below the upper mold structure, wherein the upper mold structure is provided with a shaping component for shaping the blank and a cutting component for cutting the edge of the blank in sequence along the length direction; the lower mold structure includes a lower mold base, a slide groove is provided on the lower mold base, the slide groove includes a shaping area and a cutting area, a base is slidingly provided in the slide groove, and an upper end surface of the base is provided with a accommodating cavity for placing the blank, and the lower mold base is provided with a driving structure that can drive the base to move back and forth between the shaping area and the cutting area. The present application has the effect of improving the production efficiency of decorative accessories.

Description

Technical Field

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

[0002] Glasses are one of the commonly used items in people's lives, and their products come in a variety of shapes.

[0003] Related technologies such as Figure 1 The decorative accessory shown is used on temples. It includes a main body with a hollow structure 41 and multiple positioning posts. The main body is machined from a blank 4. The positioning posts are milled from a frustum 42. The end faces of the positioning posts facing away from the main body have threaded holes. An inclined surface 43 is located above the main body, and a flat surface is located below the main body, on which the positioning posts are mounted.

[0004] The decorative accessories include multiple positioning columns, which results in a thick blank for the decorative accessories. Using low-pressure equipment to stamp the blank is difficult. In the related art, the decorative accessories are usually produced by casting, which has low processing efficiency. Summary of the Invention

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

[0006] This application provides a mold for eyeglass accessories, which adopts the following technical solution:

[0007] A mold for eyeglass accessories comprises an upper mold structure and a lower mold structure located below the upper mold structure, wherein the upper mold structure is provided with a shaping component for shaping a blank and a cutting component for cutting off the edge of the blank in sequence along the length direction; the lower mold structure comprises a lower mold base, a slide groove is provided on the lower mold base, the slide groove comprises a shaping area and a cutting area, a base is slidably provided in the slide groove, an upper end surface of the base is provided with a receiving cavity for placing the blank, and the lower mold base is provided with a driving structure that can drive the base to move back and forth between the shaping area and the cutting area.

[0008] By adopting the above technical solution, the blank is first placed in the accommodating cavity of the base, and the driving structure then moves the base to the shaping component, the upper mold structure closes the mold toward the lower mold structure, so that the shaping component shapes the blank, and 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 toward the lower mold structure, so that the shaping component cuts off the upper edge material of the blank, and the upper mold structure and the lower mold structure are separated. Finally, the processed workpiece is taken out from the base, thereby completing the shaping of the blank and improving the production efficiency of decorative accessories.

[0009] Optionally, the driving structure includes a mounting frame horizontally slidingly arranged on the side of the lower mold base and a circular shaft arranged on the side of the lower mold base, the mounting frame is provided with a mounting hole on the end face facing the lower mold base, the circular shaft outer sleeve is provided with a special-shaped gear, the upper inner wall of the mounting hole is provided with a first rack, and the lower inner wall of the mounting hole is provided with a second rack, the first rack and the second rack can both engage with the special-shaped gear, a mounting rod connecting the two is provided between the mounting frame and the base, and the upper mold structure includes a driving component that can drive the special-shaped gear to rotate.

[0010] By adopting the above technical solution, when the upper mold structure and the lower mold structure are not completely closed, the driving assembly drives the special-shaped gear to rotate, and the special-shaped gear drives the operating frame and the base to move through the first rack / second rack, so that the base is in the shaping area / cutting area, changing the process of the next closing action.

[0011] Optionally, the driving assembly includes a linkage gear sleeved outside the circular shaft and a linkage rack arranged on the upper mold structure, the linkage rack and the linkage gear are engaged with each other, and a one-way assembly connecting the linkage gear and the special-shaped gear is provided between the two, and the one-way assembly enables the special-shaped gear to rotate in one direction.

[0012] By adopting the above technical solution, two action processes are included. In the first process, when the upper mold structure is closed toward the lower mold structure, the linkage rack is driven to descend. Since the linkage rack is engaged with the linkage gear, the linkage rack drives the linkage gear to rotate. Due to the limitation of the one-way component, the special-shaped gear cannot rotate, that is, the position of the base remains unchanged. When the upper mold structure and the lower mold structure are opened, the linkage rack drives the linkage gear to rotate in the opposite direction. The linkage gear drives the special-shaped gear to rotate through the one-way component. The special-shaped gear drives the operation frame and the base to move through the first rack / second rack; In the second process, when the upper mold structure is closed toward the lower mold structure, the linkage rack is driven to descend. Since the linkage rack is engaged with the linkage gear, the linkage rack drives the linkage gear to rotate. The linkage gear drives the special-shaped gear to rotate through the one-way component. The special-shaped gear drives the operation frame and the base to move through the first rack / second rack. When the upper mold structure and the lower mold structure are opened, the linkage rack drives the linkage gear to rotate in the opposite direction. Due to the limitation of the one-way component, the special-shaped gear cannot rotate, that is, the position of the base remains unchanged.

[0013] Optionally, the upper mold structure includes an upper mold base, a punch fixing plate arranged below the upper mold base, an upper mold plate arranged below the punch fixing plate, and an upper mold spring arranged between the punch fixing plate and the upper mold plate. The shaping component includes a shaping punch inserted into the punch fixing plate, a first through-hole for the shaping punch to pass through is provided on the upper mold plate, a shaping groove is provided on the lower end face of the shaping punch, and a conical groove is provided on the accommodating cavity.

[0014] By adopting the above technical solution, when the base is in the shaping area and the upper mold structure is closed toward the lower mold structure, the upper mold plate first conflicts with the lower mold base. As the upper mold structure continues to descend, the upper mold plate is limited by the lower mold base and cannot descend. The shaping punch further descends, causing the shaping punch to extrude 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.

[0015] Optionally, the cutting assembly includes a cutting punch installed on a punch fixing plate, a second through-hole for the cutting punch to pass through is provided on the upper template, a through-hole for the cutting punch to pass through is provided on the bottom wall of the accommodating cavity, and a discharge hole that can be aligned with the second through-hole is provided on the bottom wall of the chute.

[0016] By adopting the above technical solution, when the base is in the cutting area and the upper mold structure is closed toward the lower mold structure, the upper mold plate first conflicts with the lower mold base. As the upper mold structure continues to descend, the upper mold plate is limited by the lower mold base and cannot descend. The cutting punch further descends to cut the edge material of the blank, so that the cut waste is discharged through the through hole and the discharge hole.

[0017] Optionally, the base includes an operating frame, the accommodating cavity is arranged on the operating frame, and two operating blocks are arranged below the operating frame, and the two operating blocks are distributed along the width direction of the lower mold structure. The accommodating cavity is located between the two operating blocks, and the two operating blocks are rotatably connected therebetween with an operating rod located in the horizontal direction of the accommodating cavity. The position arrangement of the operating rod and the accommodating cavity is consistent with the position arrangement of the cutting component and the shaping component. The outer sleeve of the operating rod is provided with an operating plate capable of blocking the opening below the accommodating cavity, the frustum groove is provided on the operating plate, and a limit assembly for limiting the rotation of the operating plate is provided on the operating frame, and the bottom wall of the slide groove is provided with a discharge hole for the operating plate to be turned into.

[0018] By adopting the above technical solution, after the base moves to above the discharge hole, the limit assembly releases the lock on the operating panel, and the operating panel rotates into the discharge hole. The operating panel no longer blocks the lower end surface of the accommodating cavity, and the workpiece enters the discharge hole from the accommodating cavity, thereby realizing the unloading of the workpiece; after the workpiece is unloaded, the base continues to move toward the shaping area, and the operating panel first hits the junction of the discharge hole and the chute. As the base continues to move, the operating panel is limited and rotates in the opposite direction until the operating panel re-blocks the lower opening of the accommodating cavity.

[0019] 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 for inserting the limit bar is provided on the operating plate, 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.

[0020] 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.

[0021] Optionally, a fixed groove is provided on the bottom wall of the slide, 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, and the electromagnet can drive the iron block to descend, and the lower end surface of the operating block is provided with a clearance groove for inserting the iron block, and the clearance groove passes through the operating block along the length direction of the lower mold structure.

[0022] 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 moving 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.

[0023] A molding process for a mold for eyeglass accessories comprises the following steps:

[0024] Step 1: Laser cutting process: the blank is placed in the laser equipment, and the laser equipment processes the outer contour of the eyeglass accessories on the blank and roughly processes the hollow part of the eyeglass accessories;

[0025] Step 2: stamping process, the blank is placed in the mold for eyeglass accessories, and the upper mold structure and the lower mold structure are closed and separated by a punch press to shape the blank;

[0026] Step three, cleaning process, to remove the oil stains on the blank;

[0027] Step 4: punching process, punching the blank;

[0028] Step 5: Milling process: Place the blank on a milling machine and use the milling machine to form positioning columns and planes on the blank;

[0029] Step six, tapping process, tapping on the positioning column.

[0030] By adopting the above technical solution, the molding of eyeglass accessories is divided into multiple steps, and each step is independent. The above steps can be carried out simultaneously, saving product processing time and improving product production efficiency; enabling small pressure equipment to realize large thickness product stamping processing; the bottom surface of the blank is a plane, and positioning is performed on the plane, so that the inclined surface formed on the blank during the blank shaping process and punching process is smoother, thereby improving the accuracy of the product.

[0031] Optionally, in step 2, the blank is shaped by the following steps:

[0032] Step a: Move the base to the shaping area, and the punch press closes and separates the upper die structure and the lower die structure. The shaping component forms an inclined surface on the blank, and the bottom of the blank is extruded to form a frustum.

[0033] Step b: the driving structure drives the base to move from the shaping area to the cutting area;

[0034] Step c: the punch press closes and separates the upper die structure and the lower die structure, so that the cutting assembly removes the edge material on the blank;

[0035] Step d: the driving structure drives the base to move from the cutting area to the shaping area;

[0036] Step e, repeating steps a to d until the blank is formed.

[0037] By adopting the above technical solution, the blanks are processed alternately by the shaping process and the cutting process. The staff does not need to transfer the blanks to other processing equipment in the middle, which saves the time of blank transfer and further improves the production efficiency of the blanks.

[0038] In summary, this application includes at least one of the following beneficial technical effects:

[0039] 1. First, place the blank into the accommodating cavity of the base. The driving mechanism then moves the base to the shaping component. The upper mold structure closes the mold toward the lower mold structure, allowing the shaping component to shape the blank. The upper mold structure and the lower mold structure are separated. Then, the driving mechanism moves the base to the cutting component. The upper mold structure closes the mold toward the lower mold structure, allowing the shaping component to cut off the upper edge of the blank. The upper mold structure and the lower mold structure are separated. Finally, the processed workpiece is removed from the base, completing the shaping of the blank and improving the production efficiency of decorative accessories.

[0040] 2. The molding of eyeglass accessories is divided into multiple steps, and each step is independent. The above steps can be carried out simultaneously, saving product processing time and improving product production efficiency; enabling small pressure equipment to achieve large-thickness product stamping processing; the bottom surface of the blank is flat, and positioning is performed on the flat surface, so that the bevel formed on the blank during the blank shaping process and punching process is smoother, thereby improving product precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0042] Figure 1 This is the workpiece diagram after mold processing;

[0043] Figure 2 Schematic diagram of the structure of the mold in Example 1;

[0044] Figure 3 is a schematic diagram of the base structure in Example 1;

[0045] Figure 4 It is a schematic diagram of the partial structure of the highlight driving structure in Example 1;

[0046] Figure 5 is a schematic diagram of the base structure in Example 2;

[0047] Figure 6 yes Figure 5 Partial cross-sectional view along line AA;

[0048] Figure 7 is a schematic diagram highlighting the lower mold structure in Example 2;

[0049] Figure 8 yes Figure 7 Partial cross-sectional view along line BB.

[0050] Figure numerals: 1, upper die structure; 11, upper die seat; 12, punch fixing plate; 13, upper die spring; 14, upper die plate; 141, first through-hole; 142, second through-hole; 15, shaping component; 151, shaping punch; 16, cutting component; 161, cutting punch; 2, lower die structure; 21, lower die seat; 211, slide groove; 2111, shaping area; 2112, cutting area; 212, slide hole; 213, discharge hole; 214, discharge hole; 215, chamfer; 216, fixing groove; 22, base; 221, accommodating cavity; 222, frustum groove; 223, through-hole; 224, operating frame; 2241, operating groove; 225, operating block; 2251 , give way groove; 226, operating rod; 227, operating panel; 2271, limit groove; 228, limit assembly; 2281, limit plate; 2282, limit bar; 2283, limit spring; 229, unlocking assembly; 2291, electromagnet; 2292, connecting spring; 2293, iron block; 3, driving structure; 31, mounting frame; 311, mounting hole; 32, first rack; 33, second rack; 34, circular shaft; 35, special-shaped gear; 36, mounting rod; 37, driving assembly; 371, linkage gear; 372, linkage rack; 373, one-way assembly; 3731, one-way bearing; 4, blank; 41, hollow part; 42, frustum block; 43, inclined plane. DETAILED DESCRIPTION

[0051] The following is combined with Figure 2-8 This application is described in further detail.

[0052] This embodiment discloses a mold for eyeglass accessories. Figure 2 A mold for eyeglass accessories includes an upper mold structure 1 and a lower mold structure 2, wherein the upper mold structure 1 is located above the lower mold structure 2.

[0053] Reference 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 die plate 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.

[0054] Reference Figure 2 The upper die plate 14 is located below the punch fixing plate 12, and the punch fixing plate 12 and the upper die plate 14 are connected by bolts. The upper die spring 13 is disposed between the punch fixing plate 12 and the upper die plate 14 and is in a compressed state. Furthermore, the upper die spring 13 can be mounted outside the bolts connecting the punch fixing plate 12 and the upper die plate 14.

[0055] Reference Figure 2 A shaping component 15 and a cutting component 16 are provided on the upper mold structure 1 , and the cutting component 16 is located on one side of the shaping component 15 along the length direction of the upper mold structure 1 .

[0056] Reference 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 under the blank 4. The frustum blocks 42 can be processed into positioning columns in the subsequent milling process. 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 the lower end surface of the shaping punch 151 is provided with a shaping groove. 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.

[0057] Reference Figure 2 The cutting assembly 16 is used to cut the edge of the blank 4. The cutting assembly 16 includes three cutting punches 161. The upper ends of the three cutting punches 161 are inserted into the punch fixing plate 12. The three cutting punches 161 are distributed in an array along the length direction of the upper mold structure 1.

[0058] Reference Figure 2 The upper template 14 is provided with second through-holes 142, and the number of the second through-holes 142 is the same as the number of the cutting punches 161. The second through-holes 142 can allow the cutting punches 161 to pass through.

[0059] Reference Figure 2 and Figure 3 The lower die structure 2 includes a lower die base 21 and a base 22. A chute 211 is defined on the upper end surface of the lower die base 21, extending through the lower die base 21 along its length. The chute 211 includes a shaping area 2111 and a cutting area 2112 along its length. The shaping area 2111 is located directly below the shaping punch 151. The cutting area 2112 is located directly below the cutting punch 161.

[0060] Reference Figure 2 and Figure 3 The base 22 is slidably disposed in the slide groove 211. The upper end surface of the base 22 is provided with a receiving cavity 221, into which the blank 4 can be installed. The bottom wall of the receiving cavity 221 is provided with a plurality of frustum grooves 222. When the blank 4 is placed in the receiving cavity 221, the frustum grooves 222 are located directly below the blank 4.

[0061] Reference Figure 2 and Figure 3 The bottom wall of the accommodating chamber 221 defines three through-holes 223, through which the cutting punches 161 pass. When the base 22 moves below the cutting assembly 16, each of the three through-holes 223 aligns with a cutting punch 161. The bottom wall of the chute 211 defines a discharge hole 213, and all three through-holes 223 align with the discharge hole 213.

[0062] Reference Figure 2and Figure 3 When the base 22 is in the shaping area 2111, the upper mold structure 1 and the lower mold structure 2 are engaged, and the shaping punch 151 can form an inclined surface 43 on the blank 4, while simultaneously squeezing part of the material into the truncated cone groove 222, forming a truncated cone block 42 on the blank 4. When the base 22 is in the cutting area 2112, the upper mold structure 1 and the lower mold structure 2 are engaged, and the cutting punch 161 cuts off the edge material on the blank 4.

[0063] Reference Figure 3 and Figure 4 The lower die base 21 is provided with a driving structure 3 for driving the base 22 to move in the slide 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.

[0064] Reference Figure 3 and Figure 4 The mounting frame 31 is horizontally slidably mounted on one side of the lower die base 21 along the width direction. A mounting hole 311 is defined on the end surface of the mounting frame 31 facing the lower die base 21. A first rack 32 is fixedly connected to the upper inner wall of the mounting hole 311, and a second rack 33 is fixedly connected to the lower inner wall of the mounting hole 311.

[0065] Reference Figure 3 and Figure 4 The inner wall of the chute 211 near the mounting frame 31 is provided with a sliding hole 212, which is in the shape of a horizontal elongated hole. The mounting rod 36 is slidably disposed in 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.

[0066] Reference Figure 3 and Figure 4 The circular shaft 34 is fixedly connected to the end surface of the lower die base 21 facing the mounting frame 31, and the side of the circular shaft 34 away from the lower die base 21 passes through the mounting hole 311. The special-shaped gear 35 is sleeved on the outer surface of the circular shaft 34. The first rack 32 and the second rack 33 can mesh with the special-shaped gear 35.

[0067] Reference Figure 3 and Figure 4 The drive assembly 37 is disposed on the upper die base 11 and is used to drive the circular shaft 34 to rotate. The drive assembly 37 includes a linkage gear 371, a linkage rack 372, and a one-way assembly 373. The linkage gear 371 is sleeved on the circular shaft 34, and the linkage gear 371 and the linkage rack 372 are meshed with each other.

[0068] Reference Figure 3 and Figure 4One-way assembly 373 connects linkage gear 371 to special-shaped gear 35, allowing special-shaped gear 35 to rotate in only one direction. One-way assembly 373 includes a one-way bearing 3731, which is mounted on the outer surface of circular shaft 34. The inner ring of one-way bearing 3731 is fixedly connected to linkage gear 371, and the outer ring of one-way bearing 3731 is fixedly connected to special-shaped gear 35.

[0069] In this embodiment, when the upper mold structure 1 is closing the mold with the lower mold structure 2, the linkage rack 372 is driven to descend. Since the linkage rack 372 is meshed with the linkage gear 371, the linkage rack 372 drives the linkage gear 371 to rotate. Due to the restriction 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 mold structure 1 and the lower mold structure 2 are opening, the linkage rack 372 drives the linkage gear 371 to rotate in the opposite direction. The linkage gear 371 drives the special-shaped gear 35 to rotate via the one-way component 373. The special-shaped gear 35 drives the operating frame 224 and the base 22 to move via the first rack 32 / second rack 33. In summary, during the opening process of the upper mold structure 1 and the lower mold structure 2, the operating frame 224 and the base 22 can be moved horizontally.

[0070] In other embodiments, when the upper mold structure 1 is closing the mold with respect to the lower mold structure 2, the linkage rack 372 is driven to descend. Since the linkage rack 372 is meshed 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 operating frame 224 and the base 22 to move through the first rack 32 / the second rack 33. When the upper mold structure 1 and the lower mold structure 2 are opening the mold, the linkage rack 372 drives the linkage gear 371 to rotate in the opposite direction. Due to the restriction 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 closing process of the upper mold structure 1 and the lower mold structure 2, the operating frame 224 and the base 22 can be moved horizontally.

[0071] The implementation principle of Example 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 mold structure 1 and the lower mold structure 2 are closed, and the shaping punch 151 is inserted into the accommodating cavity 221 and shapes the blank 4, so that the inclined surface 43 is formed on the blank 4, and part of the material of the blank 4 enters the truncated cone groove 222 to form the truncated cone block 42. In the second step, the upper mold structure 1 and the lower mold structure 2 are opened, and the upper mold plate 14 drives the linkage rack 372 to rise, so that 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 bearing 3731. The special-shaped gear 35 drives the operating frame 224 to move through the first rack 32 / second rack 33, so that the base 22 moves from the shaping area 2111 to the cutting area 2112. In the third step, the upper mold structure 1 and the lower mold structure 2 are closed again, and the cutting punch 161 is inserted into the accommodating cavity 221 to cut off the edge of the blank 4.

[0072] This embodiment also discloses a molding process using a mold for eyeglass accessories. A molding process using a mold for eyeglass accessories includes the following steps:

[0073] 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;

[0074] Step 2, stamping process, placing the blank 4 in the mold for eyeglass accessories, using a punch to close and separate the upper mold structure 1 and the lower mold structure 2 to shape the blank 4, specifically using the following steps:

[0075] Step a: Move the base 22 to the shaping area 2111, and use a punch to separate 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 extrude a truncated cone 42 on the bottom of the blank 4.

[0076] Step b: the driving structure 3 drives the base 22 to move from the shaping area 2111 to the cutting area 2112;

[0077] Step c: The 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;

[0078] Step d: the driving structure 3 drives the base 22 to move from the cutting area 2112 to the shaping area 2111;

[0079] Step e, repeating steps a to d until the blank 4 is formed;

[0080] Step three, cleaning process, to remove the oil stains on the blank 4;

[0081] Step 4: punching process, punching the blank 4;

[0082] Step 5: Milling process: Place the blank 4 on a milling machine and form positioning columns and planes on the blank 4 using the milling machine;

[0083] Step six, tapping process, tapping on the positioning column.

[0084] Example 2

[0085] Reference Figure 5 This embodiment differs from Example 1 in that the base 22 includes an operating frame 224, an operating block 225, an operating rod 226, an operating plate 227, and a limit assembly 228. An accommodating cavity 221 is provided on the operating frame 224. Two operating blocks 225 are provided, each fixedly connected to the lower end surface of the operating frame 224 and distributed along the width of the lower mold structure 2. The accommodating cavity 221 is located between the two operating blocks 225.

[0086] Reference Figure 4 and Figure 5 The operating rod 226 is rotatably connected between the two operating blocks 225. The positional arrangement of the operating rod 226 and the accommodating chamber 221 is consistent with the positional arrangement of the cutting assembly 16 and the shaping assembly 15. The operating plate 227 is mounted on the outside of the operating rod 226 and can block the lower opening of the accommodating chamber 221. The frustum groove 222 and the material passage hole 223 are both provided on the operating plate 227.

[0087] Reference Figure 5 and Figure 6 The limiting assembly 228 is provided on the operating frame 224 , and the limiting assembly 228 is used to limit the rotation of the operating plate 227 . The limiting assembly 228 includes a limiting plate 2281 , a limiting bar 2282 and a limiting spring 2283 .

[0088] Reference Figure 5 and Figure 6 The limiting plate 2281 is located on the side of the accommodating chamber 221 away from the operating rod 226 and is rotatably connected to the operating frame 224. The limiting bar 2282 is fixedly connected to the side facing the operating frame 224. The limiting bar 2282 can be inserted between the two operating plates 227. The operating plates 227 have limiting slots 2271 defined therein, into which the limiting plate 2281 can be inserted. When the limiting plate 2281 is inserted into the limiting slots 2271, the operating plate 227 can block the lower opening of the accommodating chamber 221.

[0089] Reference Figure 5 and Figure 6The side of the operating frame 224 is provided with an operating slot 2241, and a limit spring 2283 is disposed in the operating slot 2241. 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, and the other end of the limit spring 2283 is fixedly connected to the limit plate 2281.

[0090] Reference Figure 2 and Figure 7 The bottom wall of the chute 211 defines a discharge hole 214, located between the cutting assembly 16 and the shaping assembly 15. A chamfer 215 is defined at the junction of the discharge hole 214 and the chute 211, located on the side of the discharge hole 214 closest to the shaping area 2111. The lower die base 21 is provided with an unlocking assembly 229. As the base 22 moves from the cutting area 2112 toward the shaping area 2111, the unlocking assembly 229 drives the limiting plate 2281 to move away from the operating plate 227.

[0091] Reference Figure 6 and Figure 8 The bottom wall of the chute 211 is provided with a fixing groove 216, which 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.

[0092] Reference Figure 8 The electromagnet 2291, the connecting spring 2292, and the iron block 2293 are all disposed 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 a power supply and a controller. The controller energizes the electromagnet 2291, making it magnetic.

[0093] 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.

[0094] 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 used for the iron block 2293 to be inserted.

[0095] Reference Figure 6 and Figure 8When electromagnet 2291 is not energized, one end of iron block 2293 is inserted into chute 211, so that when base 22 moves from cutting area 2112 to shaping area 2111, iron block 2293 is located in the movement path of limit plate 2281. When electromagnet 2291 is energized, electromagnet 2291 attracts iron block 2293, causing it to move toward electromagnet 2291 and completely embed itself in chute 211.

[0096] The implementation principle of Example 2 is: before the base 22 moves from the shaping area 2111 to the cutting area 2112, the electromagnet 2291 is energized, the electromagnet 2291 attracts the iron block 2293, causing the iron block 2293 to move toward the electromagnet 2291, and the iron block 2293 is completely embedded in the slide groove 211.

[0097] When the base 22 moves from the shaping area 2111 toward the cutting area 2112 , the limiting plate 2281 is not blocked by the iron block 2293 , and the base 22 can smoothly reach the cutting area 2112 .

[0098] Before the base 22 moves from the cutting area 2112 to the shaping area 2111 , the electromagnet 2291 is powered off, the electromagnet 2291 no longer attracts the iron block 2293 , and the connecting spring 2292 is reset to drive the iron block 2293 into the chute 211 .

[0099] As the base 22 moves from the shaping area 2111 toward the cutting area 2112, the limiting plate 2281 is blocked by the iron block 2293 and rotates, causing the limiting bar 2282 to disengage from the limiting groove 2271. The operating plate 227, no longer constrained by the limiting bar 2282, rotates downward, freeing the operating plate 227 from blocking the lower opening of the accommodating chamber 221, allowing the workpiece to be released from the base 22 and discharged from the discharge hole 214. After the workpiece is discharged, the base 22 continues to move toward the shaping area 2111, and the operating plate 227 first contacts the chamfer 215. As the base 22 continues to move, the operating plate 227 is constrained by the chamfer 215 and rotates in the opposite direction, causing the operating plate 227 to re-block the lower opening of the accommodating chamber 221.

[0100] Unless otherwise defined, the technical or scientific terms used in this application shall have the usual meanings understood by persons of ordinary skill in the field to which this application belongs. The words "first", "second", "third" and similar terms used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprises" cover the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0101] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the design concept of the present application should be included in the scope of protection of the present 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 the blank (4) and a cutting component (16) for cutting the edge of the blank (4) in sequence along the length direction; the lower die structure (2) includes a lower die base (21), a slide groove (211) is provided on the lower die base (21), the slide groove (211) includes a shaping area (2111) and a cutting area (2112), a base (22) is slidably provided in the slide groove (211), an upper end surface of the base (22) is provided with a receiving cavity (221) for placing the blank (4), and a driving structure (3) is provided on the lower die base (21) that can drive the base (22) to move back and forth between the shaping area (2111) and the cutting area (2112); The base (22) includes 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 an operating rod (226) located in the horizontal direction of the accommodating cavity (221) is rotatably connected between the two operating blocks (225), and the position arrangement of the operating rod (226) and the accommodating cavity (221) is consistent with that of the cutting assembly. (16) and the shaping component (15) are arranged in the same position, the operating rod (226) is provided with an operating plate (227) capable of blocking the opening below the accommodating cavity (221), the operating plate (227) is provided with a truncated cone groove (222), part of the material of the blank (4) enters the truncated cone groove (222) to form a truncated cone block (42), 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 chute (211) is provided with a discharge hole (214) for the operating plate (227) to be rotated into.

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 circular 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 face facing the lower die base (21); the circular 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); the first rack (32) and the second rack (33) are both capable of engaging 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 on the outside of the circular shaft (34) and a linkage rack (372) provided 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 provided 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) includes 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) includes a shaping punch (151) inserted into the punch fixing plate (12); the upper mold plate (14) is provided with a first through hole (141) for the shaping punch (151) to pass through; and the lower end surface of the shaping punch (151) is provided with a shaping groove.

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

6. The mold for eyeglass accessories according to claim 1, characterized in that: An operating slot (2241) is provided on the side of the operating frame (224), and the operating slot (2241) is located on the side of the accommodating chamber (221) away from the operating rod (226). The limiting assembly (228) includes a limiting plate (2281) rotatably connected to one side of the operating frame (224) and a limiting spring (2283) arranged in the operating slot (2241). The limiting plate (2281) is located on the side of the accommodating chamber (221) away from the operating rod (226). The limiting plate (2281) faces the accommodating chamber (221). A limiting strip (2282) located below the operating frame (224) is provided on one side of the cavity (221); a limiting groove (2271) is provided on the operating plate (227) for the limiting strip (2282) to be inserted; one end of the limiting spring (2283) is fixedly connected to the bottom wall of the operating groove (2241); the other end of the limiting spring (2283) is fixedly connected to the limiting plate (2281); and an unlocking component (229) is provided on the lower die base (21) for driving the limiting plate (2281) to rotate.

7. The mold for eyeglass accessories according to claim 6, characterized in that: The bottom wall of the slide groove (211) is provided with a fixed groove (216), and the unlocking component (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), and 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), and 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) for inserting the iron block (2293), and the clearance groove (2251) passes through the operating block (225) along the length direction of the lower mold structure (2).

8. 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 rough-processes the hollow portion (41) of the eyeglass accessory; Step 2, a stamping process, placing the blank (4) in the mold for eyeglass accessories according to any one of claims 1 to 7, and using a punch to close and separate the upper mold structure (1) and the lower mold structure (2), shaping the blank (4) and cutting off the edge material; Step 3: cleaning process to remove the 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.

9. The molding process of a mold for eyeglass accessories according to claim 8, characterized in that: In step 2, the shaping and edge removal of the blank (4) are specifically carried out by the following steps: Step a, moving the base (22) to the shaping area (2111), the punch press 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, the 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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