CN113695167A - Striker for dispensing and manufacturing method thereof - Google Patents
Striker for dispensing and manufacturing method thereof Download PDFInfo
- Publication number
- CN113695167A CN113695167A CN202111086376.5A CN202111086376A CN113695167A CN 113695167 A CN113695167 A CN 113695167A CN 202111086376 A CN202111086376 A CN 202111086376A CN 113695167 A CN113695167 A CN 113695167A
- Authority
- CN
- China
- Prior art keywords
- striker
- dispensing
- main body
- needle head
- wafer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 11
- 239000010432 diamond Substances 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 235000012431 wafers Nutrition 0.000 claims description 21
- 238000010304 firing Methods 0.000 claims description 16
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 16
- 239000010937 tungsten Substances 0.000 claims description 16
- 229910052721 tungsten Inorganic materials 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 11
- 239000011265 semifinished product Substances 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000005219 brazing Methods 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 4
- 239000013078 crystal Substances 0.000 claims description 3
- 238000004663 powder metallurgy Methods 0.000 claims description 3
- 239000010979 ruby Substances 0.000 claims description 3
- 229910001750 ruby Inorganic materials 0.000 claims description 3
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims 1
- 230000000994 depressogenic effect Effects 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 239000010941 cobalt Substances 0.000 abstract description 13
- 229910017052 cobalt Inorganic materials 0.000 abstract description 13
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003292 glue Substances 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000005476 soldering Methods 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- NEIHULKJZQTQKJ-UHFFFAOYSA-N [Cu].[Ag] Chemical group [Cu].[Ag] NEIHULKJZQTQKJ-UHFFFAOYSA-N 0.000 description 2
- 239000011195 cermet Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention provides a striker for dispensing, which comprises a striker main body, wherein the striker main body is step-shaped, the top end of the striker is provided with a needle head made of polycrystalline diamond, and the outer end of the needle head is spherical or hemispherical. Compared with the prior art, the invention has the beneficial effects that: the invention provides a striker for dispensing, wherein a needle head made of polycrystalline diamond is arranged at the end part of a striker main body, and is directly difficult to generate chemical reaction with a workpiece material, so that the problem of cobalt loss is avoided, the downtime and machine adjustment time caused by frequent replacement of parts can be effectively reduced, and the stability of the processing quality is ensured.
Description
Technical Field
The invention relates to the field of dispensing, in particular to a striker for dispensing and a manufacturing method thereof.
Background
The dispensing machine can meet the production requirement only by being supported by precise dispensing accessories, wherein the most central accessories are dispensing valves, and the most central accessories in the dispensing valves are firing pins and dispensing nozzles. The glue dispensing operation is to control the striker and the glue dispensing nozzle to open and close at high frequency through the electromagnetic valve so as to realize the passing and closing of glue. Therefore, the life of the striker and the dispensing nozzle is critical.
The prior firing pin can adopt materials with high hardness and high wear resistance, such as stainless steel and tungsten steel. The common alloy steel has lower hardness of HRC 60-65, poor wear resistance and higher hardness of tungsten steel more than HRC80, so the firing pin is made of tungsten steel. However, the tungsten steel contains cobalt, such as the commonly used tungsten steel brand of japanese sumitomo AF1, the cobalt content is 12%, and during the dispensing process, part of the chemical components in the glue solution cause cobalt loss in the tungsten steel. Cobalt acts as a binder in tungsten steel, WC (tungsten carbide) is a very hard, very wear-resistant and refractory substance, and the melting point of the WC can reach 2870 +/-50 ℃; the melting point of cobalt is about 1430 ℃; when the temperature of the hard alloy blank is increased to about 1430 ℃ in the sintering process, the cobalt reaches the melting point and is in a molten state, and the cobalt permeates into gaps of WC (tungsten carbide) to tightly combine the WC and the Co, and when the temperature is cooled, the hard alloy is formed; therefore, the hard alloy really plays a role in resisting wear and pressure and is WC, and the cobalt plays a role in bonding; when cobalt loss occurs on the surface of the tungsten steel, the elasticity and the toughness are lost, so that the tungsten steel is embrittled and failed quickly. Therefore, in the repeated impact dispensing process of the existing firing pin made of tungsten steel, the firing pin can be rapidly catalyzed and disabled, the service life is short, and parts need to be frequently replaced.
Disclosure of Invention
Aiming at the problems, the invention provides the striker for dispensing, wherein the needle head made of the polycrystalline diamond is arranged at the end part of the striker main body, is directly difficult to generate chemical reaction with a workpiece material, does not cause cobalt loss, can effectively reduce the downtime and machine adjustment time caused by frequent replacement of parts, and ensures the stability of the processing quality.
The technical scheme adopted by the invention is as follows:
the striker for dispensing is characterized by comprising a step-shaped striker main body, wherein a needle head made of polycrystalline diamond is arranged at the top end of the striker, and the outer end of the needle head is spherical or hemispherical.
Preferably, the needle may also be made of ruby or single crystal diamond.
Preferably, the striker main body is made of a carbonized dock, titanium carbide or cermet.
Preferably, the needle is fixed to the top end of the striker main body by powder metallurgy or brazing.
Preferably, the end surface of the needle head welded with the firing pin body is provided with a tungsten steel layer.
The invention also provides a manufacturing method of the striker for dispensing, which comprises the following steps:
1) cutting the whole polycrystalline fine steel stone plate into a plurality of wafers;
2) welding the cut wafer and the top end of the striker main body in a welding mode to form a striker semi-finished product;
3) and (3) clamping and rotating the semi-finished product of the firing pin, and processing the wafer on the semi-finished product of the firing pin in the rotation into a spherical or hemispherical needle head by adopting laser.
Preferably, a laser blanking machine is used for cutting the whole polycrystalline fine steel plate in the step 1).
Preferably, the end face of the wafer welded with the striker main body in the step 2) is provided with a tungsten steel layer; the welding mode is high-frequency brazing.
Preferably, the laser beam in step 3) forms an included angle of 90 degrees with the surface to be cut on the wafer.
Preferably, the wafer is processed in step 3) by using a picosecond laser to generate a laser beam.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a striker for dispensing, wherein a needle head made of polycrystalline diamond is arranged at the end part of a striker main body, and is directly difficult to generate chemical reaction with a workpiece material, so that the problem of cobalt loss is avoided, the downtime and machine adjustment time caused by frequent replacement of parts can be effectively reduced, and the stability of the processing quality is ensured.
Drawings
Fig. 1 is a schematic view of a striker for dispensing provided by the present invention;
FIG. 2 is a partial enlarged view A-A of a striker for dispensing provided in the present invention;
fig. 3 is a wafer formed in step 1) of the manufacturing method of the striker for dispensing provided by the present invention;
fig. 4 is a schematic view illustrating the welding of the wafer and the striker base in step 2) of the manufacturing method of the striker for dispensing provided by the present invention;
fig. 5 is a schematic view of laser processing of the wafer in step 3) in the manufacturing method of the striker for dispensing provided by the invention.
Detailed Description
Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 to 2 show a preferred embodiment of a striker for dispensing according to the present invention. As shown in fig. 1 to 2, the striker for dispensing comprises a striker main body 10, wherein the striker main body 10 is step-shaped, a needle 20 made of polycrystalline diamond is arranged at the top end of the striker, the outer end of the needle 20 is spherical or hemispherical, the needle 20 made of polycrystalline diamond is mounted at the end of the striker main body 10, and is directly difficult to chemically react with a workpiece material, so that the problem of cobalt loss is avoided, the downtime and the machine setting time caused by frequent replacement of parts can be effectively reduced, and the stability of the processing quality is ensured.
The striker main body 10 may be made of carbonized docking station, titanium carbide, or cermet, which has high hardness, poor affinity with the material of the needle 20, and good chemical stability. The needle head 20 is fixed at the top end of the firing pin body 10 by powder metallurgy or soldering, the end face of the needle head 20 welded with the firing pin body is provided with a tungsten steel layer 21, the soldered solder is silver-copper alloy, and the effective soldering is carried out by combining the soldering paste and the soldering lug. The needle 20 may be made of ruby or single crystal diamond, in addition to polycrystalline diamond.
The invention also provides a manufacturing method of the striker for dispensing, which comprises the following steps:
1) cutting the whole polycrystalline fine steel stone plate into a plurality of wafers as shown in fig. 3;
2) welding the cut wafer and the top end of the striker main body into a whole by adopting a welding mode to form a semi-finished striker, as shown in fig. 4;
3) and (3) clamping and rotating the semi-finished product of the firing pin, and processing the round piece on the semi-finished product of the firing pin in the rotating process into a spherical or hemispherical pinhead by using laser, as shown in figure 5.
Cutting the whole polycrystalline fine steel plate by adopting a laser blanking machine in the step 1); in the step 2), the end face of the wafer welded with the striker main body is provided with a tungsten steel layer 21; the welding mode is high-frequency brazing, the solder is silver-copper alloy, BAg50CuZn contains 50% of silver, the melting point is 690-775, the comprehensive performance of the welding position is good, the strength is high, and the impact resistance is good; in the step 3), the laser beam forms an included angle of 90 degrees with a to-be-cut surface on the wafer, so that the wafer is processed into a spherical or hemispherical shape; and 3) adopting a picosecond laser to generate a laser beam to process the wafer.
In summary, the technical solutions of the present invention can fully and effectively achieve the above objects, and the structural and functional principles of the present invention have been fully verified in the embodiments, so as to achieve the expected efficacy and objects, and various changes or modifications can be made to the embodiments of the present invention without departing from the principles and spirit of the present invention. Accordingly, this invention includes all modifications encompassed within the scope of the claims appended hereto, and any equivalents thereof which fall within the scope of the claims appended hereto.
Claims (10)
1. The striker for dispensing is characterized by comprising a step-shaped striker main body, wherein a needle head made of polycrystalline diamond is arranged at the top end of the striker, and the outer end of the needle head is spherical or hemispherical.
2. The dispensing plunger of claim 1, wherein: the needle head can also be made of ruby or single crystal refined steel stone.
3. The dispensing plunger of claim 1, wherein: the striker main body is made of carbonized depressed place, titanium carbide or metal ceramic.
4. The dispensing plunger of claim 1, wherein: the needle head is fixed at the top end of the firing pin body by adopting a powder metallurgy or brazing mode.
5. The dispensing plunger as set forth in claim 4, wherein: the end surface of the needle head welded with the firing pin main body is provided with a tungsten steel layer.
6. A method for manufacturing the striker for dispensing according to any one of claims 1 to 5, comprising the steps of:
1) cutting the whole polycrystalline fine steel stone plate into a plurality of wafers;
2) welding the cut wafer and the top end of the striker main body in a welding mode to form a striker semi-finished product;
3) and (3) clamping and rotating the semi-finished product of the firing pin, and processing the wafer on the semi-finished product of the firing pin in the rotation into a spherical or hemispherical needle head by adopting laser.
7. The method for manufacturing the striker for dispensing according to claim 6, wherein: and 1) cutting the whole polycrystalline fine steel plate by using a laser blanking machine.
8. The method for manufacturing the striker for dispensing according to claim 6, wherein: in the step 2), the end face of the wafer welded with the striker main body is provided with a tungsten steel layer; the welding mode is high-frequency brazing.
9. The method for manufacturing the striker for dispensing according to claim 6, wherein: and 3) forming an included angle of 90 degrees between the laser beam and the surface to be cut on the wafer in the step 3).
10. The method for manufacturing the striker for dispensing according to claim 6, wherein: and 3) adopting a picosecond laser to generate a laser beam to process the wafer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111086376.5A CN113695167A (en) | 2021-09-16 | 2021-09-16 | Striker for dispensing and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111086376.5A CN113695167A (en) | 2021-09-16 | 2021-09-16 | Striker for dispensing and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113695167A true CN113695167A (en) | 2021-11-26 |
Family
ID=78661128
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111086376.5A Pending CN113695167A (en) | 2021-09-16 | 2021-09-16 | Striker for dispensing and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113695167A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0216538A1 (en) * | 1985-09-06 | 1987-04-01 | MICRA Ltd. | Surgical needle |
| CN201978871U (en) * | 2011-03-04 | 2011-09-21 | 深圳市高尚能源科技有限公司 | Firing pin for high-speed spraying dispenser |
| US20160097626A1 (en) * | 2014-10-06 | 2016-04-07 | Us Synthetic Corporation | Probes, styli, systems incorporating same and methods of manufacture |
| CN108067751A (en) * | 2017-12-13 | 2018-05-25 | 无锡吉迈微电子有限公司 | Plate grade material abnormity processing method |
| CN109877551A (en) * | 2019-03-20 | 2019-06-14 | 苏州山德精密工具有限公司 | PCD table rank rose reamer processing technology |
| CN209985694U (en) * | 2019-03-14 | 2020-01-24 | 北京派和智能装备技术有限公司 | Interference fit split type firing pin for piezoelectric injection valve |
| CN210357624U (en) * | 2019-03-14 | 2020-04-21 | 北京派和智能装备技术有限公司 | Composite material firing pin for piezoelectric injection valve |
-
2021
- 2021-09-16 CN CN202111086376.5A patent/CN113695167A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0216538A1 (en) * | 1985-09-06 | 1987-04-01 | MICRA Ltd. | Surgical needle |
| CN201978871U (en) * | 2011-03-04 | 2011-09-21 | 深圳市高尚能源科技有限公司 | Firing pin for high-speed spraying dispenser |
| US20160097626A1 (en) * | 2014-10-06 | 2016-04-07 | Us Synthetic Corporation | Probes, styli, systems incorporating same and methods of manufacture |
| CN108067751A (en) * | 2017-12-13 | 2018-05-25 | 无锡吉迈微电子有限公司 | Plate grade material abnormity processing method |
| CN209985694U (en) * | 2019-03-14 | 2020-01-24 | 北京派和智能装备技术有限公司 | Interference fit split type firing pin for piezoelectric injection valve |
| CN210357624U (en) * | 2019-03-14 | 2020-04-21 | 北京派和智能装备技术有限公司 | Composite material firing pin for piezoelectric injection valve |
| CN109877551A (en) * | 2019-03-20 | 2019-06-14 | 苏州山德精密工具有限公司 | PCD table rank rose reamer processing technology |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211126 |