CN112404196A - Bracelet processing system of bending - Google Patents
Bracelet processing system of bending Download PDFInfo
- Publication number
- CN112404196A CN112404196A CN202011181978.4A CN202011181978A CN112404196A CN 112404196 A CN112404196 A CN 112404196A CN 202011181978 A CN202011181978 A CN 202011181978A CN 112404196 A CN112404196 A CN 112404196A
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- China
- Prior art keywords
- gear
- extrusion
- centre gripping
- clamping
- motor
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
- B21D7/025—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member and pulling or pushing the ends of the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
Abstract
The invention discloses a bracelet processing and bending system which comprises an extrusion module, a clamping module, a metal rod and a base plate. According to the metal bar extrusion device, the clamping module is arranged, so that a user can be helped to fix the metal bar on the device, the metal bar is prevented from sliding easily in the machining process, the extrusion module is arranged, the angle of the forming plate is adjusted to adapt to different materials, the device can machine metal bars made of different materials, and the application range of the device is enlarged.
Description
Technical Field
The invention relates to the technical field of industrial production, in particular to a bracelet processing and bending system.
Background
The silver bracelet is literally understood as a silver bracelet, but is endowed with a new meaning in the modern, and the new meaning is the same as that of the silver bracelet body. The silver bracelet is characterized by magnificent holes in the dictionary algae, use of rare words, frequent use of periods and expression of feelings (correction) which make people feel shallow and redundant, but the silver bracelet needs an experienced craftsman to finish the manufacture, and the silver bracelet is very high in cost due to low efficiency of artificially producing the silver bracelet.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a bracelet processing and bending system, which solves the problems that a silver bracelet needs to be finished by an experienced craftsman during manufacturing, and the silver bracelet is high in cost due to low efficiency of manual production of the silver bracelet.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a bracelet processing system of bending, includes extrusion module, centre gripping module, metal bar and bottom plate, the extrusion module include profiled sheeting, profiled sheeting movable block, profiled sheeting support, the spacing frame of sliding block, two-way screw bracket, nut piece, two-way lead screw, extrusion sun gear, extrusion driving gear, extrusion motor support, extrusion motor, semi-circular gear, extrusion middle part driving gear, extrusion middle part gear support, adjustment motor, adjustment driving gear and extrusion middle part driven gear, the equal sliding connection of sliding block spacing frame has the sliding block in both sides of bottom plate upper surface to there is two-way lead screw through two nut piece threaded connection between two sliding blocks, the both ends of two-way lead screw are connected through two-way screw bracket rotation with the upper surface of bottom plate.
The centre gripping module include holding frame, top gyro wheel support fixed plate, top gyro wheel support, top gyro wheel, bottom gyro wheel support, centre gripping nut gear, centre gripping driving gear, centre gripping motor support, centre gripping motor, centre gripping lead screw, the spacing of centre gripping nut gear, centre gripping lead screw support fixed column, centre gripping are prevented bull stick, centre gripping guide bar, elevating platform, spring and bottom gyro wheel, the middle part fixedly connected with holding frame of bottom plate upper surface, the top of holding frame is through top gyro wheel support fixed plate fixedly connected with top gyro wheel support, the lower surface of top gyro wheel support rotates and is connected with the top gyro wheel, the below of top gyro wheel is provided with the bottom gyro wheel, the below of bottom gyro wheel rotates and is connected with bottom gyro wheel support, the overlap joint has the metal rod between the opposite face of bottom gyro wheel support.
Preferably, the middle part fixedly connected with extrusion sun gear of two-way lead screw, the surface gear connection of extrusion sun gear has the extrusion driving gear, and the side of extrusion driving gear is provided with the extrusion motor, and the output shaft and the extrusion driving gear fixed connection of extrusion motor, the extrusion motor passes through extrusion motor support fixed connection with the bottom plate.
Preferably, the upper surface fixed connection of sliding block has the profiled sheeting support, and the top of profiled sheeting support has the profiled sheeting through profiled sheeting movable block swing joint.
Preferably, connecting axle fixedly connected with semicircle gear is passed through in side of profiled sheeting, and semicircle gear's surface gear is connected with extrusion middle part driving gear, and extrusion middle part driven gear is passed through connecting axle fixedly connected with in side of extrusion middle part driving gear, extrusion middle part driving gear and extrusion middle part driven gear pass through extrusion middle part gear bracket rotation with the profiled sheeting support and are connected.
Preferably, the outer surface gear of the extrusion middle driven gear is connected with an adjusting driving gear, an adjusting motor is arranged on the side of the adjusting driving gear, an output shaft of the adjusting motor is fixedly connected with the adjusting driving gear, and the adjusting motor is fixedly connected with the forming plate support through an adjusting motor support.
Preferably, the lower surface of the bottom roller support is fixedly connected with a clamping guide rod, the outer surface of the clamping guide rod is connected with a lifting table in a sliding mode, a spring is fixedly connected between the lifting table and the opposite surface of the bottom roller support and surrounds the outer side of the clamping guide rod, and a limiting ring is fixedly connected to the bottom end of the clamping guide rod.
Preferably, the lower surface of the lifting platform is fixedly connected with a clamping anti-rotation rod and a clamping lead screw, the outer surface of the clamping anti-rotation rod and the outer surface of the clamping lead screw are slidably connected with a clamping lead screw support, and the lower surface of the clamping lead screw support is fixedly connected with a clamping frame through a clamping lead screw support fixing column.
Preferably, the outer surface of the clamping screw is in threaded connection with a clamping nut gear, the side face of the clamping nut gear is rotatably connected with the clamping screw support through a clamping nut gear limiting frame, the outer surface of the clamping nut gear is connected with a clamping driving gear, a clamping motor is arranged below the clamping driving gear, an output shaft of the clamping motor is fixedly connected with the clamping driving gear, and the clamping motor is fixedly connected with the clamping nut gear limiting frame through a clamping motor support.
Compared with the prior art, the invention provides a bracelet processing and bending system, which has the following beneficial effects: according to the metal bar extrusion device, the clamping module is arranged, so that a user can be helped to fix the metal bar on the device, the metal bar is prevented from sliding easily in the machining process, the extrusion module is arranged, the angle of the forming plate is adjusted to adapt to different materials, the device can machine metal bars made of different materials, and the application range of the device is enlarged.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
FIG. 2 is a schematic view of the structure of the extrusion motor according to the present invention.
FIG. 3 is a schematic view of the present invention.
FIG. 4 is a schematic view of the extrusion module structure of the present invention.
FIG. 5 is a schematic view of a clamping module according to the present invention.
In the figure: 1-extruding a module; 101-forming a plate; 102-a movable block of a forming plate; 103-forming plate support; 104-a sliding block limiting frame; 105-a slider; 106-bidirectional screw bracket; 107-nut block; 108-a bidirectional lead screw; 109-extrusion sun gear; 110-extrusion drive gear; 111-extruding the motor bracket; 112-a squeeze motor; 113-a half-round gear; 114-pressing the central drive gear; 115-extruding the middle gear support; 116-adjusting the motor mount; 117-adjustment motor; 118-adjusting the drive gear; 119-pressing the middle driven gear; 2-a clamping module; 201-a clamping frame; 202-top roller bracket fixing plate; 203-top roller support; 204-top roller; 205-bottom roller support; 206-clamp nut gear; 207-clamping the driving gear; 208-clamping the motor bracket; 209-clamping motor; 210-clamping a lead screw; 211-clamping nut gear spacing rack; 212-clamping screw bracket; 213-clamping the lead screw bracket fixing column; 214-clamping the anti-rotation rod; 215-clamping guide bar; 216-a lifting table; 217-a spring; 218-bottom rollers; 3-a metal rod; 4-bottom plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5, the present invention provides a technical solution: a bracelet processing and bending system comprises an extrusion module 1, a clamping module 2, a metal rod 3 and a bottom plate 4, as shown in figure 1, figure 2, figure 3 and figure 4, wherein the extrusion module 1 comprises a forming plate 101, a forming plate movable block 102, a forming plate bracket 103, a sliding block limiting frame 104, a sliding block 105, a bidirectional screw bracket 106, a nut block 107, a bidirectional screw 108, an extrusion central gear 109, an extrusion driving gear 110, an extrusion motor bracket 111, an extrusion motor 112, a semicircular gear 113, an extrusion middle driving gear 114, an extrusion middle gear bracket 115, an adjustment motor bracket 116, an adjustment motor 117, an adjustment driving gear 118 and an extrusion middle driven gear 119, the sliding block 105 is connected with two sides of the upper surface of the bottom plate 4 in a sliding manner through the limiting frame 104, the bidirectional screw 108 is connected between the two sliding blocks 105 through two nut blocks 107 in a threaded manner, two ends of the bidirectional screw 108 are rotatably connected with the upper surface of the bottom plate 4 through the bidirectional screw, an extrusion central gear 109 is fixedly connected to the middle part of the bidirectional screw 108, an extrusion driving gear 110 is connected to the outer surface gear of the extrusion central gear 109, an extrusion motor 112 is arranged on the side of the extrusion driving gear 110, the output shaft of the extrusion motor 112 is fixedly connected with the extrusion driving gear 110, the extrusion motor 112 is fixedly connected with the bottom plate 4 through an extrusion motor support 111, a forming plate support 103 is fixedly connected to the upper surface of the sliding block 105, the top end of the forming plate support 103 is movably connected with a forming plate 101 through a forming plate moving block 102, a semicircular gear 113 is fixedly connected to the side of the forming plate 101 through a connecting shaft, an extrusion middle driving gear 114 is connected to the outer surface gear of the semicircular gear 113, an extrusion middle driven gear 119 is fixedly connected to the side of the extrusion middle driving gear 114 through a connecting shaft, and the extrusion middle driven gear 114 and the extrusion, the outer surface gear of the extrusion middle driven gear 119 is connected with an adjusting driving gear 118, an adjusting motor 117 is arranged on the side of the adjusting driving gear 118, an output shaft of the adjusting motor 117 is fixedly connected with the adjusting driving gear 118, and the adjusting motor 117 is fixedly connected with the forming plate support 103 through an adjusting motor support 116.
FIG. 5 is a structural diagram of a clamping module according to the present invention, wherein the clamping module 2 comprises a clamping frame 201, a top roller bracket fixing plate 202, a top roller bracket 203, a top roller 204, a bottom roller bracket 205, a clamping nut gear 206, a clamping driving gear 207, a clamping motor bracket 208, a clamping motor 209, a clamping screw 210, a clamping nut gear limiting bracket 211, a clamping screw bracket 212, a clamping screw bracket fixing column 213, a clamping rotation-preventing rod 214, a clamping guide rod 215, a lifting platform 216, a spring 217 and a bottom roller 218, the middle portion of the upper surface of the base plate 4 is fixedly connected with the clamping frame 201, the top end of the clamping frame 201 is fixedly connected with the top roller bracket 203 through the top roller bracket fixing plate 202, the lower surface of the top roller bracket 203 is rotatably connected with the top roller 204, the bottom roller 218 is disposed below the top roller 204, the bottom roller 205 is rotatably connected with the bottom, the metal rod 3 is lapped between the opposite surfaces of the bottom roller bracket 205 and the bottom roller 218, the clamping guide rod 215 is fixedly connected to the lower surface of the bottom roller bracket 205, the lifting table 216 is slidably connected to the outer surface of the clamping guide rod 215, the spring 217 is fixedly connected between the lifting table 216 and the opposite surface of the bottom roller bracket 205, the spring 217 surrounds the outer side of the clamping guide rod 215, the limiting ring is fixedly connected to the bottom end of the clamping guide rod 215, the clamping anti-rotation rod 214 and the clamping lead screw 210 are fixedly connected to the lower surface of the lifting table 216, the clamping lead screw bracket 212 is slidably connected to the outer surfaces of the clamping anti-rotation rod 214 and the clamping lead screw 210, the lower surface of the clamping lead screw bracket 212 is fixedly connected to the clamping frame 201 through the clamping lead screw bracket fixing column 213, the clamping nut gear 206 is threadedly connected to the outer surface of the clamping lead screw 210, and the side surface of the clamping, the outer surface gear of centre gripping nut gear 206 is connected with centre gripping driving gear 207, and centre gripping motor 209 is provided with below centre gripping driving gear 207, and centre gripping motor 209's output shaft and centre gripping driving gear 207 fixed connection, centre gripping motor 209 pass through centre gripping motor support 208 fixed connection with centre gripping nut gear spacing 211.
In use, a user first places the metal rod 3 between the top roller 204 and the bottom roller 218, then the user starts the clamping motor 209, the output shaft of the clamping motor 209 drives the clamping driving gear 207 to rotate, the rotation of the clamping driving gear 207 drives the clamping nut gear 206 to rotate, the rotation of the clamping nut gear 206 drives the clamping screw 210 to move vertically, the vertical movement of the clamping screw 210 drives the lifting platform 216 to move vertically, the vertical movement of the lifting platform 216 drives the bottom roller bracket 205 to move vertically through the spring 217, at this time, the bottom roller bracket 205 drives the bottom roller 218 to press the metal rod 3 to approach the outer surface of the top roller 204, at this time, the metal rod 3 is clamped between the top roller 204 and the bottom roller 218, then the user starts the adjusting motor 117, and the output shaft of the adjusting motor 117 drives the adjusting driving gear 118 to rotate, the rotation of the adjusting driving gear 118 will drive the rotation of the extruding middle driven gear 119, the rotation of the extruding middle driven gear 119 will drive the rotation of the extruding middle driving gear 114, the rotation of the extruding middle driving gear 114 will drive the semi-circular gear 113 to swing, the semi-circular gear 113 will drive the forming plate 101 to swing through the forming plate moving block 102, when the forming plate 101 swings to a proper angle, the rotation of the adjusting motor 117 will be stopped, at this time, the user will start the extruding motor 112, the output shaft of the extruding motor 112 will drive the extruding driving gear 110 to rotate, the rotation of the extruding driving gear 110 will drive the extruding central gear 109 to rotate, the rotation of the extruding central gear 109 will drive the two-way screw 108 to rotate, the two-way screw 108 will drive the sliding blocks 105 at both sides to approach each other through the nut block 107, at this time, the, the metal rod 3 then forms a circle under the constraint of the two forming plates 101.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a bracelet processing system of bending, includes extrusion module (1), clamping module (2), metal bar (3) and bottom plate 4, its characterized in that: the extrusion module (1) comprises a molding plate (101), a molding plate movable block (102), a molding plate bracket (103), a sliding block limiting frame (104), a sliding block (105), a bidirectional screw rod bracket (106), a nut block (107), a bidirectional screw rod (108), an extrusion central gear (109), an extrusion driving gear (110), an extrusion motor bracket (111), an extrusion motor (112), a semi-circular gear (113), an extrusion middle driving gear (114), an extrusion middle gear bracket (115), an adjustment motor bracket (116), an adjustment motor (117), an adjustment driving gear (118) and an extrusion middle driven gear (119), wherein the sliding block (105) is connected with two sides of the upper surface of the bottom plate (4) in a sliding manner through the sliding block limiting frame (104), and the bidirectional screw rod (108) is connected between the two sliding blocks (105) through two screw rod blocks (107) in a threaded manner, two ends of the bidirectional screw rod 108 are rotatably connected with the upper surface of the bottom plate (4) through a bidirectional screw rod bracket (106);
the clamping module (2) comprises a clamping frame (201), a top roller bracket fixing plate (202), a top roller bracket (203), a top roller (204), a bottom roller bracket (205), a clamping nut gear (206), a clamping driving gear (207), a clamping motor bracket (208), a clamping motor (209), a clamping screw (210), a clamping nut gear limiting frame (211), a clamping screw bracket (212), a clamping screw bracket fixing column (213), a clamping anti-rotation rod (214), a clamping guide rod (215), a lifting platform (216), a spring (217) and a bottom roller (218), wherein the middle part of the upper surface of the bottom plate (4) is fixedly connected with the clamping frame (201), the top end of the clamping frame (201) is fixedly connected with the top roller bracket (203) through the top roller bracket fixing plate (202), and the lower surface of the top roller bracket (203) is rotatably connected with the top roller (204), a bottom roller (218) is arranged below the top roller (204), a bottom roller support (205) is rotatably connected below the bottom roller (218), and a metal rod (3) is lapped between opposite surfaces of the bottom roller support (205) and the bottom roller (218).
2. A bracelet machining and bending system according to claim 1, wherein: the middle part fixedly connected with extrusion sun gear (109) of two-way lead screw (108), the surface gear connection of extrusion sun gear (109) has extrusion driving gear (110), and the side of extrusion driving gear (110) is provided with extrusion motor (112), and the output shaft and the extrusion driving gear (110) fixed connection of extrusion motor (112), extrusion motor (112) and bottom plate (4) are through extrusion motor support (111) fixed connection.
3. A bracelet machining and bending system according to claim 1, wherein: the upper surface of sliding block (105) is fixedly connected with shaping board support (103), and the top of shaping board support (103) has shaping board (101) through shaping board movable block (102) swing joint.
4. A bracelet machining and bending system according to claim 1, wherein: connecting axle fixedly connected with semicircle gear (113) is passed through in side of profiled sheeting (101), and the surface gear connection of semicircle gear (113) has extrusion middle part driving gear (114), and side of extrusion middle part driving gear (114) is through connecting axle fixedly connected with extrusion middle part driven gear (119), extrusion middle part driving gear (114) and extrusion middle part driven gear (119) are connected through extrusion middle part gear bracket (115) rotation with profiled sheeting support (103).
5. A bracelet machining and bending system according to claim 1, wherein: the outer surface gear of extrusion middle part driven gear (119) is connected with regulation driving gear (118), and the side of adjusting driving gear (118) is provided with adjusting motor (117), and the output shaft and the regulation driving gear (118) fixed connection of adjusting motor (117), adjusting motor (117) and shaping board support (103) are through adjusting motor support 116 fixed connection.
6. A bracelet machining and bending system according to claim 1, wherein: the lower fixed surface of bottom roller support (205) is connected with centre gripping guide bar (215), and the surface sliding connection of centre gripping guide bar (215) has elevating platform (216), fixedly connected with spring (217) between the opposite face of elevating platform (216) and bottom roller support (205), and spring (217) encircle in the outside of centre gripping guide bar (215), the bottom fixed connection of centre gripping guide bar (215) has the spacing ring.
7. A bracelet machining and bending system according to claim 1, wherein: the lower surface fixed connection of elevating platform (216) prevents bull stick (214) and centre gripping lead screw (210) with the centre gripping, the surface sliding connection that bull stick (214) and centre gripping lead screw (210) were prevented in the centre gripping has centre gripping lead screw support (212), and centre gripping lead screw support (212)'s lower surface passes through centre gripping lead screw support fixed column (213) and clamping frame (201) fixed connection.
8. A bracelet machining and bending system according to claim 1, wherein: the utility model discloses a clamping screw, including centre gripping lead screw (210), centre gripping lead screw support (212), centre gripping nut gear (206), centre gripping nut gear limit (211), the outside surface threaded connection of centre gripping lead screw (210) has centre gripping nut gear 206, and the side and the centre gripping lead screw support (212) of centre gripping nut gear rotate to be connected through centre gripping nut gear limit (211), the outside surface gear connection of centre gripping nut gear (206) has centre gripping driving gear (207), and the below of centre gripping driving gear (207) is provided with centre gripping motor (209), the output shaft and the centre gripping driving gear (207) fixed connection of centre gripping motor (209), centre gripping motor (209) and centre gripping nut gear limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011181978.4A CN112404196B (en) | 2020-10-29 | 2020-10-29 | Bracelet processing system of bending |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011181978.4A CN112404196B (en) | 2020-10-29 | 2020-10-29 | Bracelet processing system of bending |
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| Publication Number | Publication Date |
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| CN112404196A true CN112404196A (en) | 2021-02-26 |
| CN112404196B CN112404196B (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011181978.4A Active CN112404196B (en) | 2020-10-29 | 2020-10-29 | Bracelet processing system of bending |
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| CN (1) | CN112404196B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08141657A (en) * | 1994-11-17 | 1996-06-04 | Kurimoto Ltd | Product carrying-out device in bending roll |
| CN204159702U (en) * | 2014-08-29 | 2015-02-18 | 天津市裕盛液压机械有限公司 | A kind of hydraulic pipe bender |
| CN207086813U (en) * | 2017-06-27 | 2018-03-13 | 东莞市富铭辉表业有限公司 | Combined bracelet processing forging and stamping mode structure |
| CN207668400U (en) * | 2017-12-26 | 2018-07-31 | 东莞市金龙珠宝首饰有限公司 | Hollow bracket manufactures integration apparatus |
| CN209206312U (en) * | 2018-09-30 | 2019-08-06 | 湖南映宏新材料股份有限公司 | A kind of steel wire bending machine |
| CN111136141A (en) * | 2019-12-27 | 2020-05-12 | 钟源 | Automatic bending device of silver bracelet material |
-
2020
- 2020-10-29 CN CN202011181978.4A patent/CN112404196B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08141657A (en) * | 1994-11-17 | 1996-06-04 | Kurimoto Ltd | Product carrying-out device in bending roll |
| CN204159702U (en) * | 2014-08-29 | 2015-02-18 | 天津市裕盛液压机械有限公司 | A kind of hydraulic pipe bender |
| CN207086813U (en) * | 2017-06-27 | 2018-03-13 | 东莞市富铭辉表业有限公司 | Combined bracelet processing forging and stamping mode structure |
| CN207668400U (en) * | 2017-12-26 | 2018-07-31 | 东莞市金龙珠宝首饰有限公司 | Hollow bracket manufactures integration apparatus |
| CN209206312U (en) * | 2018-09-30 | 2019-08-06 | 湖南映宏新材料股份有限公司 | A kind of steel wire bending machine |
| CN111136141A (en) * | 2019-12-27 | 2020-05-12 | 钟源 | Automatic bending device of silver bracelet material |
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| Publication number | Publication date |
|---|---|
| CN112404196B (en) | 2023-03-28 |
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