CN104000358A - Gold bracelet processing technology - Google Patents

Abstract

A gold hand chain processing technology is used for processing a gold hand chain, the gold hand chain comprises a plurality of chain bodies and buckle pieces connected with two adjacent chain bodies, and the gold hand chain processing technology comprises the following steps: step (1): stamping a chain body on a chain body processing die; step (2): stamping the cramp on a cramp processing die, and the step (3): and assembling the buckle sheet and the chain body. According to the gold bracelet processing technology, the chain body is processed through the chain body processing mold, the buckle sheet processing mold processes the buckle sheet, the whole production technology is simple, the exquisite degree is high, the appearance effect of a product is guaranteed, the chain body processing mold and the buckle sheet processing mold are directly adopted for processing in the whole processing process, the automation level degree is high, and the processing efficiency is good.

Description

Gold bracelet processing technology

technical field

The invention relates to a processing technology, and more specifically relates to a processing technology of a gold bracelet.

Background technique

In order to strengthen the visual effect, meet the needs of consumers, and improve the overall aesthetics of the existing gold jewelry, the surface is often printed with complex patterns. This type of jewelry is difficult to process and the efficiency is low. The existing gold jewelry processing molds cannot meet the processing requirements. Production demand; In addition, the molds of traditional hydraulic jewelry or small accessories are often pressed in one piece. In the case of large orders and tight production cycles, they cannot meet the needs of production and shipment in time. Moreover, the existing processing of gold jewelry The processing size of the mold is fixed, and gold ornaments of different specifications need to be completed on different molds, the overall flexibility is not high, and the adaptability is poor.

Correspondingly, for the supporting processing technology of the above-mentioned gold jewelry, the entire production process is rough, and the products processed by this process are not high in exquisiteness, and the appearance effect cannot be guaranteed. And the processing technology is complicated, and the processing efficiency of the whole processing process is on the low side.

Contents of the invention

Based on this, the object of the present invention is to provide a gold bracelet processing technology with a high level of automation and labor saving for the deficiencies of the prior art.

A gold bracelet processing technology for processing a gold bracelet, comprising the following steps:

Step (1): providing a chain body processing die and gold bars, stamping the gold bars into several chain bodies on the chain body processing die;

Step (2): provide a buckle processing mold and a gold piece, and stamp the gold piece into a buckle on the buckle processing mold; the buckle processing mold includes a master mold, is arranged above the master mold and A matched male mold, a cutting device installed on the female mold and a stamping device installed on the male mold; The limiting plates on both sides of the female mold core, the front end of the female mold core is provided with several sets of installation grooves that penetrate up and down, and the installation grooves are arranged side by side and are located between the two limit plates. It is composed of symmetrical left and right parts. A forming part is formed between the left and right parts of the installation groove. The forming part includes a square main part and a connecting rib connecting one end of the main part. A hook part protrudes from the four corners of the main part. The cutting device includes a first driving cylinder and a cutting knife connected to the first driving cylinder, the cutting knife is installed in the installation groove, and the cutting knife of each cutting device corresponds to the contour of the forming part, so The first driving device drives the cutter to move up and down; the stamping device includes a motor and a stamping block connected to the motor, the stamping block is installed on the female mold core and is located behind the forming part, and the stamping block penetrates up and down There are stamping grooves arranged side by side on the ground, and each stamping groove is aligned with a forming part; the upper end surface of the stamping block is respectively provided with a plurality of first convex lines and a plurality of second convex lines on both sides of each stamping groove, so that The cross-sections of the first convex strip and the second convex strips are "U" shaped, and the two ends of each of the first convex strips are respectively opposite to the forming part and the stamping groove; the motor drives the stamping block to move up and down, so that the stamping The first convex line and the second convex line on the block protrude from the female mold core or are accommodated in the female mold core, and the length of the first convex line is consistent with the length between the front and rear of the forming part; the male mold includes A male formwork is detachably installed on the male mold core on the male formwork, the two sides of the lower end surface of the male mold core correspond to the limiting plates of the female mold to open the limit slots, and the lower end surface of the male mold core corresponds to the installation groove , the first protruding line, and the second protruding line are respectively provided with storage slots, arc-shaped slots, and shear slots arranged side by side; There is a top in the groove, the shape of the top is the same as that of the forming part, the length of the first protrusion is equal to the width of the arc groove, the width of the second protrusion, the width of the shear groove and the main body When the mold is closed, the upper and lower sides of the gold sheet are respectively attached to the top and the forming part, and the first convex line and the second convex line are respectively inserted into the arc groove and the shear groove; , the gold piece is placed in the middle of the lower mold core, the male mold and the female mold are mold-closed, the upper and lower sides of the gold piece are respectively attached to the top and the forming part, and the limiting plate of the female mold is clamped at the limit In the bit groove, the first drive cylinder drives the cutter to move upwards, cuts off the excess material, and forms a primary bending piece with the same shape as the forming part. The male mold returns upward to feed the gold piece forward, and the primary bending piece Moving above the first convex line, the male mold moves downward to close the female mold; the motor drives the stamping block to move downward, and the first convex line touches the primary bending piece and embeds it in the arc-shaped groove. Both sides of the primary bending piece are turned up to form a "U"-shaped secondary bending The male mold described in the sheet moves upwards away from the female mold again, the secondary bending piece falls off in the arc groove of the stamping block, the motor drives the stamping block back to its position, and then the gold sheet is fed forward, so that the secondary bending piece moves to the shearing position. Above the groove, the main body of the secondary bending piece is opposite to the shearing groove, the motor drives the stamping block to move downward, and the second convex line of the stamping block abuts against the main body of the secondary bending piece to shear Movement in the groove, because the groove width of the second convex strip and the shearing groove are equal in length, the edges of the two ends of the second convex strip on the stamping block will cut off the connecting ribs on both sides of the secondary bending piece to form a buckle piece; finally , the male mold moves upward, and the buckle falls off from the shear groove; and

Step (3): Assemble the chain formed in step (1) and the clasp formed in step (2) to form the gold bracelet.

Further, in step (1), the chain body processing mold includes a lower mold, an upper mold matched with the lower mold, a return mechanism and an oil pressure device whose two ends are respectively connected to the upper mold and the lower mold, and the oil The pressure device is installed under the lower die, and the oil pressure device drives the lower die to move upwards, and the return mechanism pushes against the upper die to return; the lower die includes a base plate and a lower die core, and the lower die core is fixed on the base plate The upper end face of the lower die core is provided with a number of first grooves arranged side by side; the upper die includes a connecting plate and an upper die core installed in the middle of the lower end plate of the connecting plate; the upper die core and the lower die The cores are arranged up and down, and the lower end surface of the upper mold core is provided with a number of second-shaped grooves, which correspond to the first-shaped grooves on the lower mold core. The bottom wall of the second-shaped grooves is provided with patterns; the first-shaped grooves Enclosed with the second groove to form a cavity, the positioning block is installed on the lower end surface of the connecting plate on both sides of the lower mold core; the return mechanism is a return spring, and the two ends of the return spring are respectively connected to the Base plate and connecting plate; when the chain body processing mold is working, first place the gold bar on the first groove of the lower mold, the hydraulic device pushes the upper mold to punch downward, and the return mechanism elastically compresses, the first groove and the The second type groove encloses the molding cavity, and the gold bar is stamped to form a chain body. The outer surface of the chain body is provided with a printing pattern corresponding to the pattern on the bottom wall of the second type groove. The two ends of the chain body are also provided with a buckle bar, and the two ends of the buckle bar are connected to the groove wall of the slot.

Further, in step (3), pass the "U" shaped buckle on the buckle rod at the adjacent end of the second chain body, and press the two ends of the buckle so that the hook at one end of the buckle and the buckle The hook parts at the other end are fitted together, and then the bonded hook parts are fixed by welding to prevent the buckle bar from falling off from the buckle piece.

Further, the upper mold core and the lower mold core are respectively installed on the upper mold and the lower mold in a foldable manner.

Further, the number of the first groove of the upper mold core and the number of the second groove of the lower mold core is one.

Further, the chain body processing mold can also be provided with an ejector mechanism and a stamp; the ejector mechanism includes a cylinder and a ejector rod connected to the cylinder, and the cylinder drives the ejector rod to expand and contract up and down; the base plate is provided with Perforation, the perforation is connected with the first groove, the ejector rod is installed in the perforation, the upper end of the steel stamp is provided with a stamp corresponding to the pattern in the middle of the gold bar, and the stamp is placed on the perforation above the perforation Inside, the lower end of the steel stamp fits with the upper end of the ejector rod, and the upper end of the steel stamp extends into the groove. After the gold bar is processed, the cylinder of the ejector mechanism drives the ejector rod to move upward, and the processed chain body is ejected.

In summary, the gold bracelet processing technology of the present invention processes the chain body through the chain body processing mold, and the clasp processing mold processes the clasp. The whole production process is simple and exquisite, and the appearance effect of the product is guaranteed. The whole processing process is directly processed by the chain body processing mold and buckle processing mold, which has a high degree of automation and high processing efficiency.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the gold bracelet when the chain body and the clasp are matched.

Fig. 2 is a schematic diagram of the structure when the mold for processing the chain body is clamped.

Fig. 3 is a structural schematic view of the chain body processing mold shown in Fig. 2 when the mold is opened.

Fig. 4 is a structural schematic view of the ejection mechanism and steel stamp of the chain body processing mold shown in Fig. 2 installed on the core of the female mold.

Fig. 5 is a schematic structural view of the master mold of the buckle processing mold of the present invention.

Fig. 6 is a schematic structural view of the male mold of the buckle processing mold of the present invention.

FIG. 7 is a schematic structural view of the forming part on the master mold of the buckle processing mold shown in FIG. 5 .

Fig. 8 is a structural schematic diagram of sequentially forming a primary bending piece, a secondary bending piece and a buckle piece on the gold piece during the process of processing the gold piece by the button piece processing mold of the present invention.

Detailed ways

In order to make the technical solution of the present invention more clearly expressed, the present invention will be further described below in conjunction with the accompanying drawings.

Please refer to Fig. 1 to Fig. 8, it is a kind of gold bracelet processing technology of the present invention, is used for processing the gold bracelet 10 of gold material, and this gold bracelet 10 comprises several chain bodies 20 and the button that connects adjacent two chain bodies 30 piece, gold bracelet processing technology includes the following steps:

Step (1): providing a chain body processing mold and a plurality of gold bars, and stamping the gold bars out of the chain body 20 on the chain body processing mold;

Described chain body processing die comprises lower mold 40, the upper mold 50 that cooperates with lower mold 40, the return mechanism 60 that two ends are connected on upper mold 50 and lower mold 40 and hydraulic device (not shown), so The hydraulic device is arranged below the lower die 40, and the hydraulic device drives the lower die 40 to move upwards, cooperates with the upper die 50 to punch gold bars, and the return mechanism 60 pushes against the upper die 50 to return;

Described lower mold 40 comprises base plate 41 and lower mold core 42, and this lower mold core 42 is fixed on the upper end surface of base plate 41 by fixture (such as screw), and the upper end surface of lower mold core 42 is provided with a plurality of first side-by-side arrangements. Groove 43.

The upper mold 50 includes a connecting plate 51 and an upper mold core 52 installed in the middle of the lower end plate of the connecting plate 51 . The upper mold core 52 and the lower mold core 42 are vertically opposite to each other, and the lower end surface of the upper mold core 52 is provided with some second grooves (not shown), which correspond to the first grooves 43 on the lower mold core 42. Correspondingly, the bottom wall of the second groove is provided with patterns. The first groove 43 and the second groove enclose a cavity. The positioning blocks are installed on the lower end surface of the connecting plate 51 on both sides of the lower mold core 42 . The return mechanism 60 is a return spring, and two ends of the return spring are respectively connected to the base plate 41 and the connecting plate 51 .

When the chain body processing mold of the present invention is working, the gold bars are first placed on the first groove 43 of the lower mold 40 at the same time, the hydraulic device pushes the upper mold 50 to punch downward, the return mechanism 60 elastically compresses, and the first groove 43 and the second type groove enclose the molding cavity, and the gold bar is stamped to form a chain body 20. The outer surface of the chain body 20 corresponds to the decorative pattern on the bottom wall of the second type groove. There is respectively provided with a slot 21, and the two ends of the chain body are also provided with buckle bars 22, and the two ends of the buckle bar 22 are connected to the groove wall of the slot 21.

Preferably, the upper mold core 52 and the lower mold core 42 of the present invention are respectively installed on the upper mold 50 and the lower mold 40 in a foldable manner, and different upper mold cores 52 and lower mold cores 52 can be replaced according to the required pattern of the gold bar. The mold core is 42, so that the gold bracelet processing technology can process gold bars of different types of patterns. According to the needs of processing, the upper mold core 52 and the lower mold core 42 that are only provided with a single first groove 43 and a single second groove can also be used to process the gold bars.

In addition, when the chain body processing mold of the present invention uses a single first groove 43 and a second groove to process gold bars one by one, the gold bracelet processing technology can also be provided with an ejector mechanism 70 and a stamp 73 . The ejector mechanism 70 includes a cylinder 71 and a push rod 72 connected to the cylinder 71, and the cylinder 71 drives the push rod 72 to expand and contract up and down. The base plate 41 is provided with a perforation, which communicates with the first groove 43, the ejector rod 72 is installed in the perforation, and the upper end of the steel stamp 73 is provided with a stamp corresponding to the pattern in the middle of the gold bar , the steel stamp 73 is placed in the perforation above the perforation, the lower end of the stamp 73 fits the upper end of the push rod 72, and the upper end of the stamp 73 extends into the groove. After the gold bar is processed, the cylinder 71 of the ejector mechanism 70 drives the ejector rod 72 to move upwards, and the processed chain body is ejected.

Step (2): Provide a buckle processing mold and several gold pieces 100, on the buckle processing mold, the gold pieces 100 are punched into buckles; the buckle processing device is used to cut the strip-shaped gold pieces 100 Processed into several buckles 30, the buckle processing mold includes a female mold 80, a male mold 90 that is arranged above the female mold 80 and cooperates with the female mold 80, and a cutting device (not shown) installed on the female mold 80 And be installed on the stamping device (figure not marked) on the male mold 90.

The master mold 80 includes a master template 81, a master mold core 82 detachably installed on the master template 81, and limiting plates 83 installed on both sides of the master mold core 82. The front end of the master mold core 82 is provided with There are several sets of mounting grooves 84 that penetrate up and down. The mounting grooves 84 are arranged side by side and are located between the two limit plates 83. Each set of mounting grooves 84 is composed of mirror-symmetrical left and right parts; the left and right parts of the mounting grooves 84 A forming portion 85 is formed therebetween. The forming portion 85 includes a square main body 851 and a connecting rib 852 connecting one end of the main body 851 . A hook portion 853 protrudes from four corners of the main body 851 .

The cutting device includes a first driving cylinder (not shown) and a cutting knife (not shown) connected to the first driving cylinder, the cutting knife is passed through the installation groove 84, and the cutting device of each cutting device The knife corresponds to the contour of the forming part 85, and the first driving device drives the cutting knife to move up and down.

The stamping device includes a motor and a stamping block 86 connected to the motor. The stamping block 86 is installed on the female mold core 82 and is located behind the forming part 85. The stamping block 86 is provided with stamping grooves arranged side by side vertically. 87, each stamping groove 87 is aligned with a forming portion 85, and the upper end surface of the stamping block 86 is respectively provided with a plurality of first convex strips 88 and a plurality of second convex strips 89 on both sides of each stamping groove 87. The cross-sections of the first protruding lines 88 and the plurality of second protruding lines 89 are U-shaped, and the two ends of each of the first protruding lines 88 are opposite to the forming portion 85 and the punching groove 87 respectively. The motor drives the stamping block 86 to move up and down, so that the first convex line 88 and the second convex line 89 on the stamping block 86 protrude outside the female mold core 82 or are accommodated in the female mold core 82. The first convex line The length of 88 is consistent with the length between the front and back of the molding part 85 .

The male mold 90 includes a male template 91 detachably installed on the male mold 91 on the male template 91, and the two sides of the lower end of the male mold 92 correspond to the limiting plates 83 of the female mold 80 with limiting slots. 93, the lower end surface of the male mold core 92 is respectively provided with a receiving groove 94, an arc-shaped groove 95 and a shearing groove 96 arranged side by side corresponding to the installation groove 84, the first convex line 88, and the second convex line 89. The two ends of each arc-shaped groove 95 are respectively opposite to the receiving groove 94 and the shearing groove 96. Each receiving groove 94 is provided with a top 97 whose shape is the same as that of the forming part 85. The first The length of the convex strip 88 is equal to the groove width of the arc-shaped groove 95, and the groove width of the second convex strip 89, the shear groove 96, and the main body 851 are equal in length; The first protruding line 88 and the second protruding line 89 respectively extend into the arc-shaped groove 95 and the shearing groove 96 respectively.

When processing the buckle of the gold bracelet, the buckle processing device can process the buckle on both sides of the gold piece 100 at a time to improve the processing efficiency. During processing, the gold sheet 100 is placed in the middle of the lower mold core 42, the male mold 90 and the female mold 80 are mold-closed, the upper and lower sides of the gold sheet 100 are respectively bonded to the top 97 and the forming part 85, and the female The limiting plate 83 of the mold 80 is clamped in the limiting groove 93, and the first driving cylinder drives the cutter to move upwards to cut off excess side material to form a primary bending piece with the same shape as the forming part 85. The primary bending The sheet corresponding forming portion 85 also includes a square main body portion 851 and two connecting ribs 852 respectively connecting the two ends of the main body portion 851. The four corners of the main body portion 851 are protrudingly provided with a hook portion 853. 100 is fed forward, the primary bending piece moves above the first protruding strip 88 , and the male die 90 moves downward to close with the female die 80 . The motor drives the stamping block 86 to move downward, the first protruding strip 88 abuts against the primary bending piece and is embedded in the arc-shaped groove 95, and the two sides of the primary bending piece are upturned to form a “U”-shaped secondary The male mold 90 of the secondary bending piece is further away from the female mold 80 upwards again, the secondary bending piece falls off in the arc-shaped groove 95 of the stamping block 86, and the motor drives the stamping block 86 to return to its position. Then, the gold sheet 100 is fed forward, so that The secondary bending piece moves above the shear groove 96, the main body portion 851 of the secondary bending piece is opposite to the shear groove 96, and the motor drives the stamping block 86 to move downward, and the second protrusion of the stamping block 86 The strip 89 abuts against the main body 851 of the secondary bending piece and moves in the shear groove 96. Since the groove widths of the second convex strip 89 and the shear groove 96 are equal in length, the two ends of the second convex strip 89 on the stamping block 86 Cut off the connecting ribs 852 on both sides of the secondary bending piece at the edge of the upper part to form a buckle piece. Finally, the male die 90 moves upwards, the buckle falls off from the shear groove 96, and the outer manipulator recovers the buckle, thereby completing the processing of the buckle.

Step (3): Assemble the buckle and the chain body; when assembling, the "U" shaped buckle passes through the buckle bar at the adjacent end of the second chain body, and presses the two ends of the buckle so that one end of the buckle The hook portion 853 of the hook is attached to the hook portion 853 at the other end of the buckle, and then the attached hook 853 is fixedly connected by welding to prevent the buckle from falling off from the buckle.

In summary, the gold bracelet processing technology of the present invention processes the chain body 20 through the chain body processing mold, and the buckle piece processing mold processes the buckle piece 30. The whole production process is simple and exquisite, and the appearance of the product is guaranteed. As a result, the entire processing process is directly processed by the chain body processing mold and the buckle processing mold, with a high degree of automation and high processing efficiency.

The above-mentioned embodiment only expresses one implementation mode of the present invention, and its description is relatively specific and detailed, but it should not be understood as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (6)

1. a gold bangle processing technology, for machine-shaping one gold bangle, is characterized in that, comprises the following steps:

Step (1): serobila processing mold and a gold bar is provided, on this serobila processing mold, this gold bar struck out to some serobilas;

Step (2): cramp processing mold and a gold plaque is provided, on this cramp processing mold, this gold plaque struck out to cramp, described cramp processing mold comprises master mold, is located at master mold top the male model coordinating with master mold, is installed in the cutting device on master mold and is installed in the decompressor on male model, described master mold comprises caster, is installed in the mother module core on caster and is installed in the limiting plate of mother module core both sides removably, if described mother module core front end is provided with the mounting groove that some groups run through up and down, between mounting groove, be and be arranged side by side and between two limiting plates, every group of mounting groove is made up of left and right two parts of mirror image symmetry, between left and right two parts of mounting groove, form a forming part, this forming part comprises a square main part and connects the dowel of main part one end, and described main part four edges are convexly equipped with a hook part, described cutting device comprises the first driving cylinder and is connected in the cutting knife of the first driving cylinder, and described cutting knife is arranged in described mounting groove, and the cutting knife of each cutting device is corresponding with the profile of forming part, and described the first drive unit drives cutting knife to move up and down, described decompressor comprises motor and connects the pressing block of this motor, and described pressing block is installed on mother module core and is positioned at the rear of forming part, and described pressing block penetratingly offers the stamped groove being arranged side by side up and down, and each stamped groove is alignd with a forming part, the upper surface of described pressing block convexes with respectively some the first raised lines and some the second raised lines in each stamped groove both sides, the cross section of described the first raised line and some the second raised lines is " U " type, and described in each, the first raised line two ends are relative with forming part and stamped groove respectively, described driven by motor pressing block moves up and down, and makes the first raised line and the second raised line on pressing block stretch out in outside mother module core or be contained in mother module core, and the length between the length of described the first raised line and forming part front and back is consistent, described male model comprises that a male model plate is installed in the male die core on male model plate removably, the limiting plate of the corresponding master mold in both sides, described male die core lower surface offers stopper slot, and the corresponding mounting groove in described male die core lower surface, the first raised line and the second raised line offer respectively the accepting groove, arc shaped groove and the cut groove that are arranged side by side, each arc shaped groove two ends is relative with accepting groove and cut groove respectively, described in each, in accepting groove, be provided with top, the profile of this top is identical with forming part, the length of described the first raised line and the groove width of arc shaped groove are isometric, groove width and the main part of described the second raised line, cut groove are isometric, when matched moulds, fit with top and forming part respectively in the upper and lower both sides of described gold plaque, and described the first raised line and the second raised line stretch into respectively in arc shaped groove and cut groove, add man-hour, described gold plaque is positioned over lower die middle part, and male model and master mold carry out matched moulds, fit with top and forming part respectively in the upper and lower both sides of described gold plaque, the limiting plate of described master mold is fastened in stopper slot, and described first drives cylinder to drive cutting knife to move upward, and excises unnecessary rim charge, form the profile elementary bent sheet identical with forming part, male model is return upwards, and by gold plaque feeding forward, elementary bent sheet moves to the first raised line top, described male model moves downward, with master mold matched moulds, described driven by motor pressing block moves downward, described the first raised line is supported elementary bent sheet and is embedded in arc shaped groove, described elementary bent sheet both sides are toward upwarping, described in the secondary bent sheet of formation " U " shape, male model is again upwards away from master mold, secondary bent sheet comes off in the arc shaped groove of pressing block, driven by motor pressing block return then, gold plaque is feeding forward, make secondary bent sheet move to cut groove top, the main part of this secondary bent sheet is relative with cut groove, described driven by motor pressing block moves downward, the main part that the second raised line of described pressing block is supported secondary bent sheet moves in cut groove, due to the second raised line, the groove width of cut groove is isometric, the dowel of secondary bent sheet both sides is cut off at the edge at the second raised line both ends on pressing block, form cramp, finally, male model moves upward, and cramp comes off in cut groove, and

Step (3): the cramp of the serobila of step (1) moulding and step (2) moulding is assembled into described gold bangle.

2. gold bangle processing technology as claimed in claim 1, it is characterized in that, in step (1), described serobila processing mold comprises counterdie, the patrix coordinating with counterdie, return mechanism and the oil gear that two ends are connected to upper die and lower die, described oil gear is located at the below of counterdie, this oil gear drives counterdie to move upward, and described return mechanism is supported patrix return; Described counterdie comprises substrate and lower die, and this lower die is fixedly arranged on the upper surface of substrate, and the upper surface of lower die is provided with some the first type grooves that are arranged side by side; Described patrix comprises connecting plate, is installed in the upper cores at connecting plate bottom plate middle part; Described upper cores and lower die are presented down and are oppositely arranged, and the lower surface of this upper cores is provided with some Second-Type grooves, and corresponding with the first type groove on lower die, the diapire of Second-Type groove is provided with decorative pattern; The first type groove and Second-Type groove are encircled into a die cavity, and described locating piece is installed in connecting plate lower surface in lower die both sides; Described return mechanism is a return spring, and the two ends of described return spring are connected on substrate and connecting plate; When the work of serobila processing mold, first described gold bar is positioned on the first type groove of counterdie, oil gear promotes the downward punching press of patrix, return mechanism elastic compression, and the first type groove and Second-Type groove are encircled into die cavity, gold bar is carried out to punching press, form serobila, the decorative pattern of the diapire of the corresponding Second-Type groove of lateral surface of this serobila is provided with decalcomania, and described serobila two ends are provided with and are respectively equipped with a fluting, these serobila two ends are also provided with button bar, and described button bar two ends are connected on the cell wall of fluting.

3. gold bangle processing technology as claimed in claim 2, it is characterized in that, when step (3), by passing on the button bar of two adjacent one end of serobila of the cramp of " U " shape, compress the two ends of cramp, the hook part of cramp one end and the hook part of the cramp other end are fitted, then mode by the welding hook part after to laminating carries out affixedly, prevent that button bar from coming off in cramp.

4. gold bangle processing technology as claimed in claim 2, is characterized in that, described upper cores and lower die are installed in respectively on patrix and counterdie by the mode that can roll over dress.

5. gold bangle processing technology as claimed in claim 4, is characterized in that, the quantity of the first type groove of described upper cores and the Second-Type groove of lower die is one.

6. gold bangle processing technology as claimed in claim 5, is characterized in that, described serobila processing mold also can arrange an ejecting mechanism and steel seal; This ejecting mechanism comprises a cylinder and is connected in the push rod on cylinder, and described cylinder drives push rod flexible up and down; Described substrate is provided with perforation, this perforation and being connected with the first type groove, described push rod is installed in perforation, and the upper surface of described steel seal is provided with stamp, corresponding with the decorative pattern at gold bar middle part, described steel seal is positioned in perforation in perforation top, the lower end of steel seal and push rod upper end fit, and steel seal upper end is stretched in type groove, and gold bar completes after processing, the cylinder of ejecting mechanism drives push rod to move upward, and the serobila that completes processing is ejected.