CN117961199A - Operation method of multi-gate processing device of injection mold - Google Patents
Operation method of multi-gate processing device of injection mold Download PDFInfo
- Publication number
- CN117961199A CN117961199A CN202410087164.6A CN202410087164A CN117961199A CN 117961199 A CN117961199 A CN 117961199A CN 202410087164 A CN202410087164 A CN 202410087164A CN 117961199 A CN117961199 A CN 117961199A
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- electrode
- oil
- pressing
- inclined pressing
- disc
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000002347 injection Methods 0.000 title claims abstract description 12
- 239000007924 injection Substances 0.000 title claims abstract description 12
- 238000003825 pressing Methods 0.000 claims abstract description 68
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 22
- 238000003754 machining Methods 0.000 claims abstract description 17
- 238000010892 electric spark Methods 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 230000005494 condensation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010040007 Sense of oppression Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
- B23H1/08—Working media
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention discloses an operation method of an injection mold multi-gate processing device, which relates to the field of injection mold submarine gate processing equipment, and comprises an electrode chuck, wherein an electrode pressing column is clamped below the electrode chuck, an electrode mounting disc is connected below the electrode pressing column, a plurality of oblique pressing ribs are arranged on the side face of the electrode pressing column, an electrode driving device is slidingly connected with the side face of the oblique pressing ribs, and the top end of the electrode driving device is connected with a submarine gate electrode; in the process that the piston rod is sprung by the dish-shaped reed and is pressed down by the inclined pressing rib again, spark oil is sucked into the lower part of the piston rod from the oil inlet and is rapidly discharged from the oil outlet, so that metal scraps formed in electric spark machining can be taken away in time, and accumulation of the metal scraps is avoided.
Description
Technical Field
The invention relates to the field of injection mold submarine gate processing equipment, in particular to an operation method of an injection mold multi-gate processing device.
Background
In the production of injection mold, the submarine gate can be automatically cut off from the product when demolding, and can be automatically separated from the product in the ejection process of the product, thus being suitable for the automatic production of factories, but in the processing process of the submarine gate, because of the limitation of the shape and the precision of the submarine gate (the tolerance is generally +/-0.02 mm), electric spark processing is usually adopted, when the number of cavities of the mold is small, the effect of processing the gate by one electrode on the processing efficiency is not great, but when the number of cavities of the mold is more, such as 8 cavities and 16 cavities, the time required for processing the gate by one is longer, the efficiency is very influenced, but in the processing mode of processing the gate by one, during the electric spark processing, the etched metal scraps generated by the processing are accumulated in spark oil after condensation, are not easy to discharge and reattach at the gate, the precision of the electric spark processing is influenced, and the diameter of the scraps is extremely small, and half of the scraps is not more than 1mm, and the scraps are likely to fall on the surface again after condensation, thus being very troublesome to remove the scraps.
Disclosure of Invention
The invention aims to provide an operation method of an injection mold multi-gate processing device, which aims to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an operation method of injection mold multi-gate processingequipment, includes the electrode chuck, electrode chuck's below centre gripping has electrode to push down the post, electrode installation disc is connected with to electrode below pushing down the post, be equipped with a plurality of oblique press bars on the side of electrode pushing down the post, the side sliding connection of oblique press bar has electrode drive arrangement, electrode drive arrangement's top is connected with the submarine gate electrode, the submarine gate electrode is pushed down by the slant when pushing down the oppression electrode drive arrangement to the oblique press bar, carries out the electric discharge machining of submarine gate and gets rid of the sweeps through electrode drive arrangement.
Preferably, the electrode pushing post comprises a clamping part, an inclined pressing rib fixing part and a connecting post, wherein the clamping part is clamped and fixed in the electrode chuck, the inclined pressing rib fixing part is welded and fixed below the clamping part, inclined pressing ribs are uniformly distributed on the side face of the inclined pressing rib fixing part, the top end of the connecting post is fixed below the inclined pressing rib fixing part, and the bottom of the connecting post is slidably connected in the electrode mounting disc.
Preferably, a plurality of sliding grooves which are uniformly distributed are formed in the electrode mounting disc, and oil grooves are respectively formed in the front side surface and the rear side surface of each sliding groove.
Preferably, the electrode driving device comprises a diagonal compression bar, an electrode seat, a piston rod and a disc-shaped reed, wherein the head of the diagonal compression bar is slidably connected to the diagonal compression bar, the tail of the diagonal compression bar is fixedly connected to the electrode seat, a plurality of oil inlets are formed in four sides of the electrode seat, the piston rod is slidably mounted in the diagonal compression bar, the head of the piston rod is propped against the diagonal compression bar under the action of the elastic force of the disc-shaped reed, the disc-shaped reed is mounted in the electrode seat, and the tail of the piston rod is propped against the disc-shaped reed.
Preferably, the rear end of the submerged-arc electrode is provided with an oil path, and a plurality of oil outlets are uniformly distributed at the lowest end of the oil path and on the side surface of the submerged-arc electrode.
Preferably, the sweeps removing mechanism comprises an inner cylinder wall, an outer cylinder wall and an electromagnetic coil, wherein the inner cylinder wall is in sealing connection with one end of the outer cylinder wall, the other end of the inner cylinder wall is open, the inner cylinder wall is fixed on the electrode mounting disc, gaps are formed at the most edge of the outer cylinder wall and the electrode mounting disc, and the electromagnetic coil is respectively fixed on the outer side face of the inner cylinder wall and the inner side face of the outer cylinder wall.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can process a plurality of submerged gates simultaneously, is suitable for the condition of more mold cavities, such as 8 cavities and 16 cavities, has high processing precision, basically has the same processing quality of each gate, and has obvious efficiency improvement;
2. the oil inlet and the oil outlet are arranged in the invention, so that spark oil can be sucked into the lower part of the piston rod from the oil inlet and then rapidly discharged from the oil outlet in the process that the piston rod is sprung by the disc-shaped reed and is pressed down by the inclined pressing rib again, and the rapidly discharged spark oil forms small-range turbulence because the oil outlet is close to the working surface of the motor, so that metal scraps formed in electric spark machining can be rapidly taken away, and accumulation of the metal scraps is avoided;
3. The scrap removing mechanism provided by the invention can quickly adsorb scraps on the coil under the magnetic force of the electromagnetic coil after the scraps generated by electric spark machining are taken away by oil in the oil outlet, so that the scraps are prevented from falling on an electric spark machining surface again after being condensed, and the machining quality is prevented from being influenced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of the structure of an electrode mounting disc of the present invention;
FIG. 4 is a schematic view of the structure of the electrode pressing column of the present invention;
FIG. 5 is an enlarged view of the structure of the electrode driving device of the present invention;
Fig. 6 is an enlarged view at B in bitmap 2.
In the figure: 1-an electrode chuck;
2-electrode pressing columns; 21-obliquely pressing ribs; 22-clamping part; 23-inclined press bar fixing parts; 24-connecting columns;
3-electrode mounting disc; 31-a chute; 32-an oil groove;
4-electrode driving means; 41-oblique compression bar; 42-electrode holder; 43-a piston rod; 44-disc-shaped reed; 45-oil inlet holes;
5-a submarine gate electrode; 51-an oil path; 52-oil outlet holes.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: the utility model provides an operation method of injection mold multi-gate processingequipment, includes electrode chuck 1, electrode chuck 1's below centre gripping has electrode to push down post 2, electrode is connected with electrode installation disc 3 to push down the below of post 2, be equipped with a plurality of oblique press bars 21 on electrode is pushed down the side of post 2, the side sliding connection of oblique press bar 21 has electrode drive arrangement 4, the top of electrode drive arrangement 4 is connected with submarine gate electrode 5, submarine gate electrode 5 is pushed down by the slant when the oblique press bar 21 pushes down electrode drive arrangement 4, carries out the electric discharge machining of submarine gate and gets rid of the sweeps through electrode drive arrangement 4.
In this embodiment, the electrode pressing post 2 includes a clamping portion 22, an inclined rib fixing portion 23 and a connecting post 24, the clamping portion 22 is clamped and fixed in the electrode chuck 1, the inclined rib fixing portion 23 is welded and fixed below the clamping portion 22, the inclined ribs 21 are uniformly distributed on the side surface of the inclined rib fixing portion 23, the top end of the connecting post 24 is fixed below the inclined rib fixing portion 23, the connecting post 24 is slidably connected in the bottom electrode mounting disc 3, during the electric spark machining process, the working electrode can repeatedly move up and down, so that the working electrode and a machined product generate pulse discharge, and then materials are removed through electric erosion, in the process, the electrode chuck 1 can clamp the clamping portion 22, and the inclined ribs 21 are driven to move up and down through the up and down repetitive motion of the electrode chuck 1.
In this embodiment, the electrode mounting disc 3 is provided with a plurality of sliding grooves 31 that are uniformly distributed, the front and rear sides of the sliding grooves 31 are respectively provided with an oil groove 32, the sliding grooves 31 are used for facilitating the oblique compression bar 41 to slide in the electrode mounting disc 3, and the oil grooves 32 can meet the oil inlet requirement of the oil inlet hole 45 on the electrode base 42.
In this embodiment, the electrode driving device 4 includes a diagonal pressing rod 41, an electrode holder 42, a piston rod 43 and a disc-shaped reed 44, where the head of the diagonal pressing rod 41 is slidably connected to the diagonal pressing rod 21, the tail of the diagonal pressing rod 41 is fixedly connected to the electrode holder 42, and four sides of the electrode holder 42 are provided with a plurality of oil inlet holes 45, the piston rod 43 is slidably installed in the diagonal pressing rod 41 and the head of the piston rod 43 is propped against the diagonal pressing rod 21 under the action of the elastic force of the disc-shaped reed 44, the disc-shaped reed 44 is installed in the electrode holder 42, the tail of the piston rod 43 is propped against the disc-shaped reed 44, and there is an oil inlet gap at the position where the diagonal pressing rod 41 is slidably connected with the diagonal pressing rod 21, when the diagonal pressing rod 21 moves up in the oil inlet gap, the diagonal pressing rod 41 is not contacted with the diagonal pressing rod 21, so that the disc-shaped reed 44 will not drive the diagonal pressing rod 41 upwards, and the piston rod 43 will be propped upwards at first, the oil inlet holes 45 will be pushed into the electrode holder 42 at this time until the diagonal pressing rod 21 continues to move upwards, so that the diagonal pressing rod 41 is driven upwards; when the inclined press rib 21 moves downwards, the piston rod 43 is pressed downwards continuously until the disc-shaped reed 44 is pressed downwards, spark oil is discharged from the oil outlet 52, and the discharged spark oil can take away metal scraps generated in the electric discharge machining process.
In this embodiment, the rear end of the submerged-arc electrode 5 is provided with an oil path 51, and a plurality of oil outlets 52 are uniformly distributed at the lowest end of the oil path 51 and on the side surface of the submerged-arc electrode 5.
The edge of the electrode mounting disc 3 is fixedly provided with a scrap removing mechanism 6, the scrap removing mechanism 6 is used for collecting scraps removed by the submerged gate electrode 5 and avoiding condensation of the scraps to fall on a gate, the scrap removing mechanism 6 comprises an inner cylinder wall 61, an outer cylinder wall 62 and an electromagnetic coil 63, the inner cylinder wall 61 is in sealing connection with one end of the outer cylinder wall 62, the other end of the inner cylinder wall 61 is open, the inner cylinder wall 61 is fixed on the electrode mounting disc 3, gaps are formed at the outermost edges of the outer cylinder wall 62 and the electrode mounting disc 3, and the electromagnetic coil 63 is respectively fixed on the outer side surface of the inner cylinder wall 61 and the inner side surface of the outer cylinder wall 62.
Working principle: when the device is used, the whole device is firstly clamped on the electrode chuck 1, the electrode mounting disc 3 is fixed on a product to be processed, the electrode driving device 4 is arranged in the electrode mounting disc 3, electric spark machining is started, the electrode chuck 1 clamps the clamping part 22, the inclined pressing rib 21 is driven to move up and down through the up-and-down repeated motion of the electrode chuck 1, an oil inlet gap exists at the position where the inclined pressing rib 41 is in sliding connection with the inclined pressing rib 21, when the inclined pressing rib 21 moves up in the oil inlet gap, the inclined pressing rib 21 is not contacted with the inclined pressing rib 41, the inclined pressing rib 41 is not driven to move upwards, the disc-shaped reed 44 firstly pushes the piston rod 43 upwards, the oil inlet hole 45 is filled into the electrode seat 42 until the inclined pressing rib 21 continues to move upwards, and the inclined pressing rib 41 is driven to be contacted with the oil inlet hole 45; when the oblique press bar 21 moves downwards, the piston rod 43 is pressed downwards continuously until the disc-shaped reed 44 is pressed downwards, spark oil is discharged from the oil outlet 52, metal scraps generated in the electric discharge machining process are taken away by the discharged spark oil, and after the scraps are taken away by oil liquid discharged from the oil outlet 52, the scraps are adsorbed on the coil rapidly under the magnetic force of the electromagnetic coil 63, so that the scraps are prevented from being condensed and then fall on an electric spark machining surface again, and the machining quality is influenced.
Based on the above, the invention can process a plurality of submarine gates simultaneously, is suitable for the condition of more mold cavities, such as 8 cavities and 16 cavities, has high processing precision, basically has the same processing quality of each gate, and has obvious efficiency improvement; the oil inlet and the oil outlet are arranged in the invention, and in the process that the piston rod is sprung by the disc-shaped reed and is pressed down by the inclined pressing rib again, spark oil is sucked into the lower part of the piston rod from the oil inlet and is rapidly discharged from the oil outlet.
It will be appreciated by those skilled in the art that the present invention can be carried out in other embodiments without departing from the spirit or essential characteristics thereof. Accordingly, the above disclosed embodiments are illustrative in all respects, and not exclusive. All changes that come within the scope of the invention or equivalents thereto are intended to be embraced therein.
Claims (2)
1. An operation method of an injection mold multi-gate processing device is characterized in that: the machining device comprises an electrode chuck (1), an electrode pressing column (2) is clamped below the electrode chuck (1), an electrode mounting disc (3) is connected below the electrode pressing column (2), a plurality of inclined pressing ribs (21) are arranged on the side face of the electrode pressing column (2), an electrode driving device (4) is connected to the side face of the inclined pressing ribs (21) in a sliding mode, a submerged gate electrode (5) is connected to the top end of the electrode driving device (4), the submerged gate electrode (5) is pressed downwards in an inclined mode when the inclined pressing ribs (21) press the electrode driving device (4), electric discharge machining of a submerged gate is conducted, scraps are removed through the electrode driving device (4), a scrap removing mechanism (6) is fixed to the edge of the electrode mounting disc (3), and the scrap removing mechanism (6) is used for collecting the scraps removed by the submerged gate electrode (5) and avoiding the scraps from being condensed at a gate;
The electrode pressing column (2) comprises a clamping part (22), an inclined pressing rib fixing part (23) and a connecting column (24), wherein the clamping part (22) is clamped and fixed in the electrode chuck (1), the inclined pressing rib fixing part (23) is welded and fixed below the clamping part (22) and the inclined pressing ribs (21) are uniformly distributed on the side surface of the inclined pressing rib fixing part (23), the top end of the connecting column (24) is fixed below the inclined pressing rib fixing part (23), and the bottom of the connecting column (24) is connected in the electrode mounting disc (3) in a sliding mode;
The electrode driving device (4) comprises a diagonal pressing rod (41), an electrode seat (42), a piston rod (43) and a disc-shaped reed (44), wherein the head of the diagonal pressing rod (41) is connected to the diagonal pressing rib (21) in a sliding manner, the tail of the diagonal pressing rod (41) is fixedly connected to the electrode seat (42), a plurality of oil inlet holes (45) are formed in four side surfaces of the electrode seat (42), the piston rod (43) is arranged in the diagonal pressing rod (41) in a sliding manner, the head of the piston rod is propped against the diagonal pressing rib (21) under the elastic action of the disc-shaped reed (44), the disc-shaped reed (44) is arranged in the electrode seat (42), and the tail of the piston rod (43) is propped against the disc-shaped reed (44);
The scrap removing mechanism (6) comprises an inner cylinder wall (61), an outer cylinder wall (62) and an electromagnetic coil (63), wherein the inner cylinder wall (61) is in sealing connection with one end of the outer cylinder wall (62), the other end of the inner cylinder wall is open, the inner cylinder wall (61) is fixed on the electrode mounting disc (3), gaps are formed at the most edge of the outer cylinder wall (62) and the electrode mounting disc (3), and the electromagnetic coil (63) is respectively fixed on the outer side surface of the inner cylinder wall (61) and the inner side surface of the outer cylinder wall (62);
The rear end of the submarine gate electrode (5) is provided with an oil path (51), and a plurality of oil outlet holes (52) are uniformly distributed at the lowest end of the oil path (51) and on the side surface of the submarine gate electrode (5);
The operation method specifically comprises the following steps:
Step one: the whole device is clamped on an electrode chuck (1), an electrode mounting disc (3) is fixed on a product to be processed, and an electrode driving device (4) is mounted in the electrode mounting disc (3);
Step two: starting electric spark machining, wherein the clamping part (22) is clamped by the electrode chuck (1), the inclined pressing rib (21) is driven to move up and down through the up-and-down repeated movement of the electrode chuck (1), an oil inlet gap exists at the position of the inclined pressing bar (41) in sliding connection with the inclined pressing rib (21), when the inclined pressing rib (21) moves up in the oil inlet gap, the inclined pressing rib (21) is not contacted with the inclined pressing bar (41), the inclined pressing bar (41) is not driven to move upwards, the disc-shaped reed (44) firstly pushes the piston rod (43) upwards, and the oil inlet hole (45) is used for feeding oil into the electrode seat (42) until the inclined pressing rib (21) continues to move upwards until the inclined pressing bar (41) is contacted, and the inclined pressing bar (41) is driven to move upwards together;
Step three: when the oblique press bar (21) moves downwards, the piston rod (43) is pressed downwards continuously until the disc-shaped reed (44) is pressed downwards, spark oil is discharged from the oil outlet (52), metal scraps generated in the electric discharge machining process are taken away by the discharged spark oil, and after the scraps are taken away by oil liquid discharged from the oil outlet (52), the scraps are adsorbed on the coil under the action of the magnetic force of the electromagnetic coil (63).
2. The method of operating an injection mold multi-gate tooling apparatus of claim 1, wherein: the electrode mounting disc (3) is provided with a plurality of sliding grooves (31) which are uniformly distributed, and oil grooves (32) are respectively arranged on the front side surface and the rear side surface of the sliding grooves (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410087164.6A CN117961199A (en) | 2021-06-01 | 2021-06-01 | Operation method of multi-gate processing device of injection mold |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110607538.9A CN113305375B (en) | 2021-06-01 | 2021-06-01 | Multi-gate processing device of injection mold |
| CN202410087164.6A CN117961199A (en) | 2021-06-01 | 2021-06-01 | Operation method of multi-gate processing device of injection mold |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110607538.9A Division CN113305375B (en) | 2021-06-01 | 2021-06-01 | Multi-gate processing device of injection mold |
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| CN117961199A true CN117961199A (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110607538.9A Active CN113305375B (en) | 2021-06-01 | 2021-06-01 | Multi-gate processing device of injection mold |
| CN202410087164.6A Pending CN117961199A (en) | 2021-06-01 | 2021-06-01 | Operation method of multi-gate processing device of injection mold |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110607538.9A Active CN113305375B (en) | 2021-06-01 | 2021-06-01 | Multi-gate processing device of injection mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202388077U (en) * | 2011-12-26 | 2012-08-22 | 日写（昆山）精密模具有限公司 | Processing unit for mold sprue |
| CN204035736U (en) * | 2014-08-18 | 2014-12-24 | 歌尔声学股份有限公司 | A kind of universal cast gate electrode clamping positioner |
| CN104526090A (en) * | 2014-12-11 | 2015-04-22 | 芜湖市万华塑料制品有限公司 | Electric discharge machine |
| CN204934780U (en) * | 2015-07-16 | 2016-01-06 | 南京华格电汽塑业有限公司 | A kind of injection moulding die casting mouth electrode discharge device |
| KR101876269B1 (en) * | 2018-03-08 | 2018-07-09 | 주식회사유가엠엔티 | Small hole electric discahrging machine having function of automatically changing electrod |
| CN110524076B (en) * | 2019-06-13 | 2020-09-22 | 河北博坚金属加工有限公司 | Roller surface electric spark texturing equipment |
| CN210060032U (en) * | 2019-06-24 | 2020-02-14 | 赫比(成都)精密塑胶制品有限公司 | Ultrahigh sprue electrode clamp convenient to use |
| CN212443611U (en) * | 2020-12-30 | 2021-02-02 | 常州市瑞泰光电有限公司 | Processing assembly of formula of hiding runner mold insert |
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2021
- 2021-06-01 CN CN202110607538.9A patent/CN113305375B/en active Active
- 2021-06-01 CN CN202410087164.6A patent/CN117961199A/en active Pending
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| Publication number | Publication date |
|---|---|
| CN113305375A (en) | 2021-08-27 |
| CN113305375B (en) | 2023-12-08 |
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