CN108421946A - A kind of cold header - Google Patents
A kind of cold header Download PDFInfo
- Publication number
- CN108421946A CN108421946A CN201810238881.9A CN201810238881A CN108421946A CN 108421946 A CN108421946 A CN 108421946A CN 201810238881 A CN201810238881 A CN 201810238881A CN 108421946 A CN108421946 A CN 108421946A
- Authority
- CN
- China
- Prior art keywords
- fixed
- funnel
- babinet
- cross bar
- crossbar
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
Abstract
The invention discloses a kind of cold headers,The discharge port of its side is located at including cold headers main body and inclination,Cylinder is equipped with below discharge port,It is fixed with connecting rod between cylinder and cold headers main body,Cylinder lower end is cased with funnel,The section of funnel is shape of falling from power,The diameter of cylinder is less than the diameter of funnel upper end,There are gaps between cylinder body outer wall and funnel upper end inner wall,Funnel lower end is cased with oil inlet,The diameter of funnel lower end is less than the diameter of oil inlet,There are gaps between funnel lower end outer wall and oil inlet inner wall,Oil inlet lower end is fixed with oil collection barrel and communicates therewith,Oil collection barrel is equipped with the second oil outlet,Second oil outlet is equipped with the second control valve,Funnel both ends are respectively fixed with first crossbar and second crossbar,The vibration that the present invention passes through funnel and box body,Excessive fluid is effectively collected,Bolt surface is set only to be coated with a small amount of oil film.By a motor, the vibration of funnel and box body can be operated simultaneously, and dual-use achievees the effect that saving.
Description
Technical field
The present invention relates to machinery equipment field, and in particular to a kind of cold header.
Background technology
Cold header is the special equipment that the fasteners such as batch production nut bolt are specifically used to based on pier.Cold-heading is
Using mold at normal temperatures to the forging method of metal bar material upsetting formation.Cold headers are cold working, can be released in process
A large amount of heat is released, a large amount of lubricating oil is needed to participate in work in the cold headers course of work.After the completion of cold-heading, process
Bolt and nut can be conveyed out, and a part of fluid is flowed out with bolt and nut, existing structure for conveying, usually one it is inclined
Plate or the inclined box body with leakage hole, can not effectively collect the fluid of outflow, pollute and waste, conveying
Also a large amount of fluid can be carried on the bolt gone out so that the greasy incomparable bad processing of bolt.
Invention content
Above-mentioned in order to solve the problems, such as, the present invention provides a kind of cold header.
The present invention is achieved through the following technical solutions：
A kind of cold header, including cold headers main body and inclination are located at the discharge port of its side, the discharge port lower section
Equipped with cylinder, connecting rod is fixed between the cylinder and cold headers main body, the cylinder lower end is cased with funnel, the funnel
Section is shape of falling from power, and the diameter of the cylinder is less than the diameter of funnel upper end, between the cylinder body outer wall and funnel upper end inner wall
There are gap, the funnel lower end is cased with oil inlet, and the diameter of the funnel lower end is less than the diameter of oil inlet, under the funnel
There are gaps, the oil inlet lower end to be fixed with oil collection barrel and communicate therewith between end outer wall and oil inlet inner wall, the oil-collecting
Bucket is equipped with the second oil outlet, and second oil outlet is equipped with the second control valve, and the funnel both ends are respectively fixed with first
Cross bar and second crossbar, in the first crossbar fitting be cased with and the fixed sleeve of cold headers main body and be slidably connected with it, institute
It states and is equipped with contraction spring in sleeve, the contraction spring both ends are fixed with first crossbar and cold headers main body respectively, and described second
The rotatable connection of cross bar side has the first idler wheel, the cylinder side to tilt and be fixed with blanking pipeline and communicate therewith, the cylinder
It is tilted be equipped with the fixed hole pattern of its inner wall, hole pattern lower position is described to fall on the side of blanking pipeline eminence position
Pipe material lower position, which passes through, to be had babinet and communicates therewith, and the blanking pipeline is fixed with wall box, and the babinet lower end is solid
Determine and be communicated with trapped fuel case, the trapped fuel case is equipped with oil outlet, and the oil outlet is equipped with the first control valve, the trapped fuel case
It is connect with vacuum pump by connecting tube, box body is equipped in the babinet, the box body lower wall is equipped with multiple through-holes, the material blanking tube
There are gaps, the box body both ends to fix respectively above box body, between the box side wall and cabinet wall for road lower position
There are a third cross bar and the 4th cross bar, third cross bar side, which passes through wall box and is rotatably connected, the second idler wheel, and described the
Three cross bars are slidably connected with wall box, and the 4th cross bar side passes through wall box and is fixed with block, and the described 4th is horizontal
Tension spring is cased on bar, the tension spring both ends are fixed with block and babinet respectively, and the 4th cross bar is slidably connected with wall box,
It is equipped with motor between the second crossbar and third cross bar, turntable, the turntable annular are fixed on the output shaft of the motor
Surface array is fixed with multiple arcs convex block, and first idler wheel and the second idler wheel are pasted with the arc bump of turntable both sides respectively
It closes, the motor lower end is fixed with pillar, and the oil collection barrel, pillar, trapped fuel case and vacuum pump lower end are fixed with and cold-heading owner
The fixed pedestal of body.
Preferably, the section of the first crossbar, second crossbar, third cross bar and the 4th cross bar is rectangular, and described
One cross bar, second crossbar, third cross bar and the 4th cross bar are in same level.
Preferably, the babinet lower end is shape of falling from power.
Preferably, the babinet upper end is equipped with opening, and the overthe openings are fitted with the lid hinged with babinet, described
Lid lower end is fixed with sealing ring.
Compared with prior art, the beneficial effects of the invention are as follows：Pass through the vibration of funnel so that fluid falls more
Soon, without hanging on inner wall of hopper, fluid, which enters in oil collection barrel, to be collected.The bolt for speckling with fluid is dropped into inside box body, is led to
The vibration of box body is crossed, excessive fluid leaks down from through-hole, opens vacuum pump, and fluid also can quickly be collected into trapped fuel case, make
Bolt surface is only coated with a small amount of oil film.By a motor, the vibration of funnel and box body, a machine two can be operated simultaneously
With achieving the effect that saving.
Description of the drawings
Fig. 1 is the schematic diagram of structure of the present invention；
Fig. 2 is the partial enlarged view of structure of the present invention.
In figure：Cold headers main body 1, discharge port 2, connecting rod 3, cylinder 4, hole pattern 5, funnel 6, oil collection barrel 7, oil inlet 8,
One cross bar 9, sleeve 10, contraction spring 11, blanking pipeline 12, babinet 13, second crossbar 14, the first idler wheel 15, third cross bar 16,
Second idler wheel 17, motor 18, turntable 19, arc bump 20, pillar 21, box body 22, through-hole 22-1, the 4th cross bar 23, tension spring 24,
Block 25, trapped fuel case 26, the first oil outlet 27, the first control valve 28, vacuum pump 29, connecting tube 30, lid 31, the second oil outlet
32, the second control valve 33, pedestal 34.
Specific implementation mode
Present invention is further described in detail with specific implementation mode below in conjunction with the accompanying drawings：
As shown in Figure 1 and Figure 2, a kind of cold header, including cold headers main body 1 and inclination are located at the discharge port of its side
2,2 lower section of the discharge port is equipped with cylinder 4, and connecting rod 3, the cylinder 4 are fixed between the cylinder 4 and cold headers main body 1
Lower end is cased with funnel 6, and the section of the funnel 6 is shape of falling from power, and the diameter of the cylinder 4 is less than the diameter of 6 upper end of funnel, described
There are gap between 6 upper end inner wall of 4 outer wall of cylinder and funnel, 6 lower end of the funnel is cased with oil inlet 8,6 lower end of the funnel
Diameter is less than the diameter of oil inlet 8, and there are gap, the oil inlets 8 between 8 inner wall of 6 lower end outer wall of the funnel and oil inlet
Lower end is fixed with oil collection barrel 7 and communicates therewith, and the oil collection barrel 7 is equipped with the second oil outlet 32, on second oil outlet 32
Equipped with the second control valve 33,6 both ends of the funnel are respectively fixed with first crossbar 9 and second crossbar 14, in the first crossbar 9
Fitting is cased with and 1 fixed sleeve 10 of cold headers main body and is slidably connected with it, and contraction spring 11, institute are equipped in the sleeve 10
It states 11 both ends of contraction spring to fix with first crossbar 9 and cold headers main body 1 respectively, the rotatable connection of 14 side of the second crossbar has
First idler wheel 15,4 side of the cylinder tilt be fixed with blanking pipeline 12 and communicate therewith, the cylinder 4 it is tilted be equipped with
The fixed hole pattern 5 of its inner wall, 5 lower position of the hole pattern is in the side of 12 eminence position of blanking pipeline, the blanking pipeline 12
Lower position, which passes through, to be had babinet 13 and communicates therewith, and the blanking pipeline 12 is fixed with 13 side wall of babinet, 13 lower end of the babinet
Trapped fuel case 26 is fixed and is communicated with, the trapped fuel case 26 is equipped with oil outlet 27, and the oil outlet 27 is equipped with the first control valve
28, the trapped fuel case 26 is connect by connecting tube 30 with vacuum pump 29, is equipped with box body 22 in the babinet 13, under the box body 22
Wall is equipped with multiple through-hole 22-1, and 12 lower position of the blanking pipeline is above box body 22,22 side wall of the box body and babinet 13
There are gap between inner wall, 22 both ends of the box body are respectively fixed with third cross bar 16 and the 4th cross bar 23, the third cross bar
16 sides, which pass through 13 side wall of babinet and are rotatably connected, the second idler wheel 17, and the third cross bar 16 connects with 13 side walls of babinet
It connecing, 23 side of the 4th cross bar passes through 13 side wall of babinet and is fixed with block 25, and tension spring 24 is cased on the 4th cross bar 23,
24 both ends of the tension spring are fixed with block 25 and babinet 13 respectively, and the 4th cross bar 23 is connect with 13 side walls of babinet, institute
It states and is equipped with motor 18 between second crossbar 14 and third cross bar 16, turntable 19 is fixed on the output shaft of the motor 18, it is described
19 annular surface array of turntable is fixed with multiple arcs convex block 20, first idler wheel, 15 and second idler wheel 17 respectively with turntable 19
The arc bump 20 of both sides is bonded, and 18 lower end of the motor is fixed with pillar 21, the oil collection barrel 7, pillar 21,26 and of trapped fuel case
29 lower end of vacuum pump is fixed with and 1 fixed pedestal 34 of cold headers main body.
The first crossbar 9, second crossbar 14, third cross bar 16 and the 4th cross bar 23 section be it is rectangular, described
One cross bar 9, second crossbar 14, third cross bar 16 and the 4th cross bar 23 are in same level.
13 lower end of the babinet is shape of falling from power.
13 upper end of the babinet is equipped with opening, and the overthe openings are fitted with the lid 31 hinged with babinet 13, described
31 lower end of lid is fixed with sealing ring.
Operation principle：In the use of the present invention, starting motor 18 so that turntable 19 rotates, and turntable 19 drives multiple arcs
Convex block 20 rotates, and when the first idler wheel 15 of 19 side of turntable is withstood by arc bump 20, the first idler wheel 15 rotates and drives the
Two cross bars 14 are slightly moved to the direction far from turntable 19, and second crossbar 14 drives funnel 6 slightly mobile, and funnel 6 drives first
Cross bar 9 is slightly mobile, and first crossbar 9 is slided into sleeve 10, and contraction spring 11 is squeezed and shrinks, when the of 19 side of turntable
When one idler wheel 15 is between two arc bumps 20, contraction spring 11 resets, and first crossbar 9 is slided to outside sleeve 10, and first is horizontal
Bar 9 drives funnel 6 slightly mobile, and funnel 6 drives second crossbar 14 slightly mobile, second crossbar 14 drive the first idler wheel 15 to by
The direction of nearly turntable 19 is slightly moved, and at this moment the first idler wheel 15 rotates and is bonded arc bump 20, and reaching makes 6 side-to-side vibrations of funnel
Effect.At the same time, when the second idler wheel 17 of 19 other side of turntable is between two arc bumps 20, the rebound of tension spring 24 is multiple
Position, block 25 drive the 4th cross bar 23 to be slided into babinet 13, and the 4th cross bar 23 drives box body 22 slightly mobile, and box body 22 drives
Third cross bar 16 is slightly mobile, and third cross bar 16 drives the second idler wheel 17 slightly to be moved to close to the direction of turntable 19, and at this moment the
Second wheel 17 rotates and is bonded arc bump 20, when the second idler wheel 17 of 19 other side of turntable is withstood by arc bump 20, the
Second wheel 17 rotates and third cross bar 16 is driven slightly to be moved to the direction far from turntable 19, and third cross bar 16 drives box body 22 light
Micro-shifting is dynamic, and box body 22 drives the 4th cross bar 23 slightly mobile, and the 4th cross bar 23 drives block 25 to be moved to the direction far from babinet 13
Dynamic, tension spring 24 is stretched, and achievees the effect that make 22 side-to-side vibrations of box body.By a motor 18,6 He of funnel can be operated simultaneously
The vibration of box body 22, dual-use achieve the effect that saving.
The bolt processed through cold headers main body 1 falls into cylinder 4 from discharge port 2 and falls on hole pattern 5, the hole of hole pattern 5
Less than bolt, bolt is stopped, the fluid flowed out with bolt under hole pattern 5 by dropping into funnel 6, by the vibration of funnel 6,
So that fluid falls faster, without hanging on 6 inner wall of funnel, oil inlet 8 prevents the spillage of fluid, fluid from entering oil collection barrel
It is collected in 7, can be discharged from the second oil outlet 32 by the second control valve 33.Speckle with fluid bolt slid from hole pattern 5 into
Enter blanking pipeline 12, drop into the inside of box body 22 in babinet 13 again later, by the vibration of box body 22, excessive fluid is from through-hole
22-1 leaks down, and opens vacuum pump 29, by connecting tube 30, fluid also can be quickly collected into trapped fuel case 26, make bolt surface
It is only coated with a small amount of oil film, can be discharged from the first oil outlet 27 by the first control valve 28.Lid 31 is opened, spiral shell is can be taken off
Bolt.Connecting rod 3 is used for fixed cylinder 4, and pillar 21 supports motor 18, pedestal 34 to play firm effect.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe the originals of the present invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (4)
1. a kind of cold header, including cold headers main body (1) and inclination are located at the discharge port (2) of its side, it is characterised in that：
It is equipped with cylinder (4) below the discharge port (2), connecting rod (3), institute are fixed between the cylinder (4) and cold headers main body (1)
It states cylinder (4) lower end and is cased with funnel (6), the section of the funnel (6) is shape of falling from power, and the diameter of the cylinder (4) is less than funnel
(6) diameter of upper end, there are gap between cylinder (4) outer wall and funnel (6) upper end inner wall, end cap under the funnel (6)
Have an oil inlet (8), the diameter of funnel (6) lower end is less than the diameter of oil inlet (8), funnel (6) lower end outer wall with into
There are gaps, oil inlet (8) lower end to be fixed with oil collection barrel (7) and communicate therewith, the oil collection barrel between hydraulic fluid port (8) inner wall
(7) it is equipped with the second oil outlet (32), second oil outlet (32) is equipped with the second control valve (33), the funnel (6) two
End is respectively fixed with first crossbar (9) and second crossbar (14), is bonded and is cased with and cold headers main body on the first crossbar (9)
(1) it fixed sleeve (10) and is slidably connected with it, contraction spring (11), the contraction spring is equipped in the sleeve (10)
(11) both ends are fixed with first crossbar (9) and cold headers main body (1) respectively, and second crossbar (14) the side rotatable connection has the
One idler wheel (15), cylinder (4) side tilt and are fixed with blanking pipeline (12) and communicate therewith, and the cylinder (4) is tilted
Equipped with the fixed hole pattern of its inner wall (5), hole pattern (5) the lower position is in the side of blanking pipeline (12) eminence position, institute
Stating blanking pipeline (12) lower position and passing through has babinet (13) and communicates therewith, the blanking pipeline (12) and babinet (13) side wall
Fixed, trapped fuel case (26) is fixed and be communicated in babinet (13) lower end, and the trapped fuel case (26) is equipped with oil outlet (27), institute
It states oil outlet (27) and is equipped with the first control valve (28), the trapped fuel case (26) is connected by connecting tube (30) and vacuum pump (29)
It connects, box body (22) is equipped in the babinet (13), box body (22) lower wall is equipped with multiple through-holes (22-1), the blanking pipeline
(12) lower position is above box body (22), and there are gap, the boxes between box body (22) side wall and babinet (13) inner wall
Body (22) both ends are respectively fixed with third cross bar (16) and the 4th cross bar (23), and third cross bar (16) side passes through babinet
(13) side wall and be rotatably connected have the second idler wheel (17), the third cross bar (16) connect with babinet (13) side walls, described
4th cross bar (23) side passes through babinet (13) side wall and is fixed with block (25), and tension spring is cased on the 4th cross bar (23)
(24), tension spring (24) both ends are fixed with block (25) and babinet (13) respectively, the 4th cross bar (23) and babinet (13)
Side walls connect, equipped with motor (18) between the second crossbar (14) and third cross bar (16), the motor (18) it is defeated
It is fixed with turntable (19) on shaft, turntable (19) the annular surface array is fixed with multiple arcs convex block (20), and described first
Idler wheel (15) and the second idler wheel (17) are bonded with the arc bump (20) of turntable (19) both sides respectively, and motor (18) lower end is solid
Surely there is a pillar (21), the oil collection barrel (7), pillar (21), trapped fuel case (26) and vacuum pump (29) lower end is fixed with and cold headers
Main body (1) fixed pedestal (34).
2. a kind of cold header according to claim 1, it is characterised in that：The first crossbar (9), second crossbar
(14), the section of third cross bar (16) and the 4th cross bar (23) is rectangular, the first crossbar (9), second crossbar (14),
Three cross bars (16) and the 4th cross bar (23) are in same level.
3. a kind of cold header according to claim 1, it is characterised in that：Babinet (13) lower end is shape of falling from power.
4. a kind of cold header according to claim 1, it is characterised in that：Babinet (13) upper end is equipped with opening,
The overthe openings are fitted with and the hinged lid (31) of babinet (13), and lid (31) lower end is fixed with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810238881.9A CN108421946B (en) | 2018-03-22 | 2018-03-22 | A kind of cold header |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810238881.9A CN108421946B (en) | 2018-03-22 | 2018-03-22 | A kind of cold header |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108421946A true CN108421946A (en) | 2018-08-21 |
| CN108421946B CN108421946B (en) | 2019-07-12 |
Family
ID=63159347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810238881.9A Expired - Fee Related CN108421946B (en) | 2018-03-22 | 2018-03-22 | A kind of cold header |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108421946B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971402A (en) * | 2018-08-30 | 2018-12-11 | 安徽阳天机械工业有限公司 | A kind of Multistation cold upsetting formation machine of water-oil separating |
| CN109622871A (en) * | 2019-02-26 | 2019-04-16 | 海盐宇星螺帽有限责任公司 | A kind of anhydrous cold-heading device of high strength nut |
| CN110625039A (en) * | 2019-09-25 | 2019-12-31 | 浙江君悦标准件有限公司 | Cold header with automatic blank forming mechanism |
| CN111001748A (en) * | 2020-01-08 | 2020-04-14 | 芜湖永辉汽车紧固件有限公司 | Nut cold heading forming and trimming all-in-one machine |
| CN115138804A (en) * | 2022-09-02 | 2022-10-04 | 常州市武进大众标准件有限公司 | High-strength bolt cold heading equipment and bolt manufacturing process thereof |
| CN115401161A (en) * | 2022-11-01 | 2022-11-29 | 连云港米思米标准件有限公司 | Discharging mechanism of cold header for bearing production |
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| GB491620A (en) * | 1937-07-21 | 1938-09-06 | Hubert Chippendale Smith | Improvements relating to metal heating furnaces |
| CN203253536U (en) * | 2013-04-25 | 2013-10-30 | 杨洁 | Cold headed nut degreaser |
| CN203419466U (en) * | 2013-07-02 | 2014-02-05 | 上虞市锐新环境设备有限公司 | Automatic feeding frame for oil removal |
| CN203495122U (en) * | 2013-09-17 | 2014-03-26 | 宁波腾工精密机械制造有限公司 | High precision collision-free feeding machine of cold header |
| CN105458155A (en) * | 2014-09-09 | 2016-04-06 | 天津捷多耀科技有限公司 | Cold header discharging device |
| CN205629269U (en) * | 2016-05-03 | 2016-10-12 | 浙江精艺标准件有限公司 | Discharge mechanism of cold heading machine |
| CN107442484A (en) * | 2017-08-08 | 2017-12-08 | 上海永太汽车零部件厂 | Part de-oiling purging system |
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2018
- 2018-03-22 CN CN201810238881.9A patent/CN108421946B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB491620A (en) * | 1937-07-21 | 1938-09-06 | Hubert Chippendale Smith | Improvements relating to metal heating furnaces |
| CN203253536U (en) * | 2013-04-25 | 2013-10-30 | 杨洁 | Cold headed nut degreaser |
| CN203419466U (en) * | 2013-07-02 | 2014-02-05 | 上虞市锐新环境设备有限公司 | Automatic feeding frame for oil removal |
| CN203495122U (en) * | 2013-09-17 | 2014-03-26 | 宁波腾工精密机械制造有限公司 | High precision collision-free feeding machine of cold header |
| CN105458155A (en) * | 2014-09-09 | 2016-04-06 | 天津捷多耀科技有限公司 | Cold header discharging device |
| CN205629269U (en) * | 2016-05-03 | 2016-10-12 | 浙江精艺标准件有限公司 | Discharge mechanism of cold heading machine |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971402A (en) * | 2018-08-30 | 2018-12-11 | 安徽阳天机械工业有限公司 | A kind of Multistation cold upsetting formation machine of water-oil separating |
| CN108971402B (en) * | 2018-08-30 | 2023-11-21 | 安徽阳天机械工业有限公司 | Multi-station cold heading forming machine for oil-water separation |
| CN109622871A (en) * | 2019-02-26 | 2019-04-16 | 海盐宇星螺帽有限责任公司 | A kind of anhydrous cold-heading device of high strength nut |
| CN109622871B (en) * | 2019-02-26 | 2023-08-22 | 宇星紧固件(嘉兴)股份有限公司 | High strength nut's anhydrous cold heading device |
| CN110625039A (en) * | 2019-09-25 | 2019-12-31 | 浙江君悦标准件有限公司 | Cold header with automatic blank forming mechanism |
| CN111001748A (en) * | 2020-01-08 | 2020-04-14 | 芜湖永辉汽车紧固件有限公司 | Nut cold heading forming and trimming all-in-one machine |
| CN115138804A (en) * | 2022-09-02 | 2022-10-04 | 常州市武进大众标准件有限公司 | High-strength bolt cold heading equipment and bolt manufacturing process thereof |
| CN115401161A (en) * | 2022-11-01 | 2022-11-29 | 连云港米思米标准件有限公司 | Discharging mechanism of cold header for bearing production |
| CN115401161B (en) * | 2022-11-01 | 2023-01-10 | 连云港米思米标准件有限公司 | Discharging mechanism of cold header for bearing production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108421946B (en) | 2019-07-12 |
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