CN109693005A - A kind of thread chasing machine for accurate thread piece - Google Patents
A kind of thread chasing machine for accurate thread piece Download PDFInfo
- Publication number
- CN109693005A CN109693005A CN201910097985.7A CN201910097985A CN109693005A CN 109693005 A CN109693005 A CN 109693005A CN 201910097985 A CN201910097985 A CN 201910097985A CN 109693005 A CN109693005 A CN 109693005A
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- Prior art keywords
- cylinder
- clamping jaw
- thread
- stock guide
- rack
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G11/00—Feeding or discharging mechanisms combined with, or arranged in, or specially adapted for use in connection with, thread-cutting machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding Of Workpieces (AREA)
Abstract
The invention discloses a kind of thread chasing machines for accurate thread piece, are related to screw element production equipment technology, solve the technical issues of needing artificial loading and unloading.Technical points include rack, the automatic chuck being rotationally connected in rack, the two-dimensional active platform being movably connected in rack, the threading tool being set on two-dimensional active platform and the cooling system being set in rack: further including for storing each part workpiece and by loading assemblies that each part workpiece intermittence is put into automatic chuck and the blanking component for being used to remove workpiece after processing is completed；The present invention has the advantages that being capable of automatic loading/unloading.
Description
Technical field
The present invention relates to screw element production equipment technologies, more specifically, it relates to which a kind of be used for accurate thread piece
Thread chasing machine.
Background technique
The prior art, the screw elements such as similar bolt, screw, screw, screw rod need to rub with the hands on the body of rod using automatic flat die thread-rolling machine
Screw thread out, this production method yield is big, and high degree of automation, therefore is widely used in all kinds of hardware manufacturers；But
It is that existing automatic flat die thread-rolling machine precision is not high, and screw plate intensity is lower, and flexibility is poor, therefore, for some high-precisions, height
The accurate thread piece (such as screw rod, titanium screw) of intensity can not still be produced and used, to solve the above problems, hardware equipment is raw
It produces producer and has developed the thread chasing machine for producing high-end accurate thread piece.
In the prior art, thread chasing machine and the layout of center lathe are substantially similar, and existing thread chasing machine includes rack, turns
The dynamic automatic chuck being connected in rack, is set on two-dimensional active platform the two-dimensional active platform being movably connected in rack
Threading tool and the cooling system that is set in rack, drive Work piece high-speed to rotate using automatic chuck, utilize two-dimensional active
Platform drives threading tool to get on the bus out screw thread in the outer wall of the workpiece of high-speed rotation, while using cooling system to just in screw thread vehicle
Knife and workpiece are cooled down.
But existing thread chasing machine does not all have automatic loading/unloading function, and thread chasing machine internal structure is more compact,
If by the manual feeding of staff or feeding not only inefficiency, and being easy to connect with screw tool when placing workpiece
Touching, causes staff injured or workpiece is shunk, it is therefore desirable to improve.
Summary of the invention
Problem in view of the prior art, the purpose of the present invention is to provide a kind of thread chasing machine for accurate thread piece,
It has the advantages that being capable of automatic loading/unloading.
To achieve the above object, the present invention provides the following technical scheme that include rack, be rotationally connected in rack from
It moves chuck, the two-dimensional active platform being movably connected in rack, the threading tool being set on two-dimensional active platform and is set to
Cooling system in rack further includes
Loading assemblies, the loading assemblies include the stock guide being set on two-dimensional active platform, the appearance that is set on stock guide
The pusher cylinder setting box and being set on stock guide, the axis that axis and automatic chuck are provided on the stock guide are in same
One horizontal plane and the deflector chute being connected to container lower end are provided on the piston rod of the pusher cylinder and put in deflector chute
Mandril；
Blanking component, the blanking component include that the mounting base being set on two-dimensional active platform, cylinder body are set in mounting base
The pusher cylinder at end, the clamping jaw cylinder being connected on the piston rod of pusher cylinder are fixed in mounting base and upper end is in clamping jaw
Slide plate below cylinder movement routine and it is set to the hopper being connected in rack and with slide plate lower end, the folder of the clamping jaw cylinder
The axis of pawl and automatic chuck is in same level.
By using above-mentioned technical proposal, by a large amount of Workpiece storages in container, using the effect of gravity so that being in
The workpiece of container lowermost end is fallen directly in deflector chute, and the axis pair of deflector chute and automatic chuck is made using two-dimensional active platform
Together, top thick stick is then pushed so that the workpiece fallen in deflector chute can be pushed into automatic chuck to complete by pusher cylinder
Automatic charging work；Mounting base is driven to be moved to designated position using two-dimensional active platform, so that being fixed on mounting base upper end
The axis of pusher cylinder and automatic chuck is in the same vertical plane, is then driven clamping jaw cylinder to workpiece by pusher cylinder
Top so that clamping jaw cylinder can clamp workpiece, finally control pusher cylinder and reset so that clamping jaw cylinder is moved to cunning
Above plate, finally controls clamping jaw cylinder and put down workpiece so that workpiece can be slid along slide plate to feeding can be completed in hopper
Work；Structure is simple, compact layout, convenient to carry out, can also be used, be had stronger by transformation on existing thread chasing machine
The ability of being applicable in.
The present invention is further arranged to: two-dimensional active platform is removably mounted on the stock guide, on the stock guide
More are plugged with to be vertically arranged and lower end grafting is into the positioning pin in two-dimensional active platform.
By using above-mentioned technical proposal, when needing to process the workpiece of different-diameter, it is only necessary to replace stock guide
Reach the deflector chute of replacement different inner diameters, structure is simple, convenient to carry out；By positioning pin and stock guide and two-dimensional active platform it
Between cooperation can be realized the location and installation of stock guide.
The present invention is further arranged to: each positioning pin is disposed as rubber parts, each positioning pin lower end surface with
The position chamfer setting of positioning pin outer wall handover.
It, when in use will not be to two-dimensional active platform using positioning pin made of rubber parts by using above-mentioned technical proposal
It causes to damage with stock guide, effectively ensures the service life of two-dimensional active platform and stock guide；Pass through the straight of positioning pin lower end
Corner can play the role of guiding, convenient for positioning pin to be inserted into stock guide and two-dimensional active platform.
The present invention is further arranged to: being provided on the piston rod of the pusher cylinder and is inserted with what piston rod was coaxially set
Slot, the slot are internally provided with magnetic block, and one end that the mandril is connect with pusher cylinder, which is provided with, to be plugged in slot
Iron.
By using above-mentioned technical proposal, by the way that iron is inserted into slot and fixes iron energy by the absorption of magnetic block
The detachable installation of enough simple realization mandrils, convenient for staff according to the mandril of different internal diameter replacement different-diameters, and
Mandril can be taken out when replacing stock guide to prevent mandril from interfering with stock guide.
The present invention is further arranged to: the container includes the framework being fixed on stock guide and is removably mounted to frame
Intracorporal material-storing box, the lower end of the material-storing box are provided with the hang plate that two panels is in the setting of inverted "eight" shape shape, two inclinations
The lower end of plate forms the charging conduit being connected to together with deflector chute.
By using above-mentioned technical proposal, material-storing box can be positioned by framework, convenient for quickly putting for material-storing box
It sets；Each part workpiece can be guided to skid off storing along hang plate by material-storing box and by the charging conduit that two panels hang plate lower end is formed
Outside box, the automatic blanking of simple realization workpiece works.
The present invention is further arranged to: the framework includes the positive baffle that two panels is individually fixed in stock guide rear and front end,
The upper part of the two sides of each positive baffle is provided with and the mutually perpendicular side baffle of positive baffle.
It, can be to material-storing box by the cooperation between each positive baffle and each side baffle by using above-mentioned technical proposal
Each side limited, the location and installation of simple realization material-storing box.
The present invention is further arranged to: the upper end of the mounting base is provided with guide pad, and the two sides of the guide pad are solid
Surely there is a horizon bar, the cylinder body of the pusher cylinder is fixed on two horizon bars far from one end of guide pad, the pusher cylinder
Piston rod on be fixed with the motion bar for being fed through guide pad, the clamping jaw cylinder is fixed on one of motion bar far from pusher cylinder
On end.
By using above-mentioned technical proposal, can not only make to push away by the cooperation between guide rod and horizon bar, motion bar
The promotion clamping jaw cylinder that cylinder can be stable of taking offence is mobile, and mounting base can be made not get too close to automatic chuck, so that work
Personnel are not easy to interfere with mounting base when replacing screw tool.
The present invention is further arranged to: the motion bar is provided with two, two motion bars far from pusher cylinder one
Link block is fixed on end, the both ends of the link block are plugged with the fastening bolt being threadedly coupled with the cylinder body of clamping jaw cylinder.
It, can be simple by the cooperation between fastening bolt and clamping jaw cylinder, link block by using above-mentioned technical proposal
The detachable installation of clamping jaw cylinder is realized, convenient for the disassembly maintenance of clamping jaw cylinder；Two o'clock can be played by the way that two motion bars are arranged
The effect of support, so that the connection between motion bar and link block is more stable.
The present invention is further arranged to: rubber parts is provided on each clamping jaw of the clamping jaw cylinder, when blanking component
When taking out workpiece, each rubber parts is contacted with workpiece.
By using above-mentioned technical proposal, buffering, liner can be played the role of by rubber parts, so that workpiece will not be by
The clamping jaw folder of clamping jaw cylinder is bad.
The present invention is further arranged to: the upper end of the slide plate is provided with cushion.
By using above-mentioned technical proposal, the effect of buffering can be played by cushion, workpiece is avoided to fall directly on cunning
It is damaged when on plate because of collision.
Compared with prior art, the beneficial effects of the present invention are:
(1) automatic loading/unloading that can be realized thread chasing machine, effectively reduces the working strength of staff, and effectively ensures work
The work safety of personnel；
(2) compact layout will not occupy too large space, be suitable for all size manufacturer and use, and can be directly in existing screw thread
Lathe improvement uses；
(3) structure is simple, and required power device is few, at low cost, convenient for promoting the use of.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present embodiment；
Fig. 2 is the schematic diagram of internal structure of the present embodiment；
Fig. 3 is the structural schematic diagram of the present embodiment loading assemblies；
Fig. 4 is the structural schematic diagram of the present embodiment container；
Fig. 5 is the scheme of installation of the present embodiment mandril；
Fig. 6 is the structural schematic diagram of the present embodiment blanking component.
Appended drawing reference: 1, rack；2, automatic chuck；3, two-dimensional active platform；4, threading tool；5, cooling system；6, on
Expect component；61, stock guide；611, deflector chute；612, positioning pin；62, container；621, framework；6211, positive baffle；6212, side
Baffle；622, material-storing box；6221, hang plate；6222, charging conduit；63, pusher cylinder；631, slot；632, magnetic block；64, it pushes up
Bar；641, iron；7, blanking component；71, mounting base；711, guide pad；712, horizon bar；713, motion bar；714, link block；
715, fastening bolt；72, pusher cylinder；721, rubber parts；73, clamping jaw cylinder；74, slide plate；741, cushion；75, hopper；8,
Protective cover；81, transparent glass.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention will be described in detail.
A kind of thread chasing machine for accurate thread piece referring to figs. 1 and 2, including rack 1, is rotationally connected with machine
On frame 1 with for clamping workpiece automatic chuck 2, be movably connected in rack 1 with for driving each work package to do horizontal shifting
Dynamic two-dimensional active platform 3 is set on two-dimensional active platform 3 with the threading tool 4 for carrying out cutting thread to workpiece, setting
In in rack 1 with for workpiece and threading tool 4 carry out cooling cooling system 5, be set on two-dimensional active platform 3 with
In the loading assemblies 6 that workpiece is automatically fed into automatic chuck 2 and it is set on two-dimensional active platform 3 to be used to process
At the blanking component 7 that automatically takes out of workpiece；Wherein, it is additionally provided with protective cover 8 in rack 1, is provided on protective cover 8 transparent
Glass 81.
In conjunction with shown in Fig. 2 and Fig. 3, blanking component 7 include be removably mounted on two-dimensional active platform 3 stock guide 61,
It is set on stock guide 61 for storing and the container 62 and cylinder body of conveying workpieces are fixed on two-dimensional active platform 3
The pusher cylinder 63 in automatic chuck 2 is promoted with the workpiece for that will fall in stock guide 61；Wherein, container 62 includes fixing
In the framework 621 on stock guide 61 and it is removably mounted in framework 621 for storing workpiece and exporting the storing of workpiece
Box 622 is provided with the mandril 64 that can be arranged in stock guide 61 on the piston rod of pusher cylinder 63.
Wherein, as shown in connection with fig. 4, framework 621 include two panels be located at 61 both ends of stock guide positive baffle 6211 and
Multi-disc is respectively arranged at the side baffle 6212 of each 6211 two sides of positive baffle, when material-storing box 622 is installed in framework 621, storage
Each side of magazine 622 is bonded with each positive baffle 6211 and each side baffle 6212 respectively；Wherein, in material-storing box 622
Lower end is tiltedly installed with the hang plate 6221 that two panels is in the setting of "eight" shape shape, forms one between the lower end of two panels hang plate 6221
Road is used to for workpiece skid off the charging conduit 6222 outside material-storing box 622, when not having workpiece on stock guide 61 and pusher cylinder 63 is complete
When contraction, the workpiece being stored in material-storing box 622 can be fallen directly on stock guide 61 by charging conduit 6222 to complete workpiece
Transportation work.
Wherein, as shown in connection with fig. 4, the axis that one of axis and automatic chuck 2 are provided on stock guide 61 is in same water
The deflector chute 611 being connected in plane and with charging conduit 6222 is plugged with a lower end on four ends angle of stock guide 61 and inserts
Tap into the positioning pin 612 in two-dimensional active platform 3；Wherein, the lower end surface of each positioning pin 612 and 612 outer wall of positioning pin are handed over
The equal chamfer setting in the position connect.When workpiece is fallen out of container 62, workpiece can be fallen directly in deflector chute 611 to realize
The positioning work of workpiece.
As shown in figure 5, the piston rod in pusher cylinder 63 is provided with one and the piston rod coaxial line of pusher cylinder 63
Slot 631 is internally provided with a magnetic block 632 in slot 631, and one is also plugged in slot 631 by magnetic block
The iron 641 that 632 absorption are fixed in slot 631, mandril 64 are connect with iron 641 far from one end of magnetic block 632；By pushing away
Material cylinder 63 can push mandril 64 to move in deflector chute 611, so that mandril 64 can will be fallen in deflector chute 611
In workpiece jacking automatic chuck 2.
In conjunction with shown in Fig. 2 and Fig. 6, take-off assembly includes the mounting base 71 being set on two-dimensional active platform 3, cylinder body setting
In on the piston rod that the pusher cylinder 72 of 71 upper end of mounting base, cylinder body are set to pusher cylinder 72 with the clamping jaw for clamping workpiece
Cylinder 73 is set in rack 1 and is located at 3 lower end of two-dimensional active platform with the hopper 75 for collecting workpiece and tilts fixation
In the slide plate 74 being delivered on two-dimensional active platform 3 with the workpiece for taking out clamping jaw cylinder 73 in hopper 75；Wherein, slide plate
74 upper end extends to the lower section of 73 movement routine of clamping jaw cylinder, is provided in the upper end of card for preventing workpiece from knocking bad delay
Rush pad 741.
Wherein, it is fixed with a guide pad 711 in the upper end of mounting base 71, is respectively and fixedly provided with one in the two sides of guide pad 711
Root horizon bar 712 is plugged with two and the motion bar 713 disposed in parallel of horizon bar 712, pusher cylinder 72 on guide pad 711
Cylinder body be fixed on two one end of horizon bar 712 far from guide pad 711, the piston rod of pusher cylinder 72 and two motion bars
713 is fixed, one piece of link block 714 is fixed on two one end of motion bar 713 far from pusher cylinder 72, in link block 714
Left and right ends be plugged with the fastening bolt being threadedly coupled with the cylinder body of clamping jaw cylinder 73 715；Pass through pusher cylinder 72
It pushes motion bar 713 mobile, is moved at automatic chuck 2 and is pressed from both sides so that motion bar 713 is able to drive clamping jaw cylinder 73
Take work.
Wherein, rubber parts 721 is provided on each clamping jaw of clamping jaw cylinder 73, each part rubber parts 721 is set in a tubular form
On each clamping jaw for setting and being respectively sleeved at clamping jaw cylinder 73, when blanking component 7 takes out workpiece, each rubber parts 721 and work
Part contact.
The course of work of the invention is as follows:
Before work, a large amount of workpiece are put into material-storing box 622 by staff with same direction, then utilizes existing iron in factory
Plate blocks charging conduit 6222 and put material-storing box 622 in framework 621 into, after material-storing box 622 is put into framework 621, by iron plate
Extraction, at this point, can be fallen directly in deflector chute 611 in 622 the lowermost workpiece of material-storing box.
When work, the axis and automatic clamping of deflector chute 611 are moved so that by the drive loading assemblies 6 of two-dimensional active platform 3
The axis of disk 2 is aligned, and is then promoted the workpiece fallen in deflector chute 611 in automatic chuck 2 using pusher cylinder 63, using certainly
The automatic clamping function of dynamic chuck 2 fixes Workpiece clamping, then controls pusher cylinder 63 and resets, at this point, in material-storing box 622
Workpiece will continue to fall in deflector chute 611.After the completion of feeding, with two-dimensional working platform, screw tool and cooling system 5
Cutting thread work is carried out to workpiece, after the complete screw thread of vehicle, drives blanking component 7 to move so that clamping jaw gas by two-dimensional active platform 3
Cylinder 73 and workpiece are in the same vertical plane, and the surface of workpiece is then moved to by the promotion clamping jaw cylinder 73 of pusher cylinder 72
So that clamping jaw cylinder 73 can clamp workpiece, then control automatic chuck 2 and decontrol workpiece, then controls pusher cylinder 72 and reset
So that clamping jaw cylinder 73 can be moved to the top of slide plate 74, finally controls clamping jaw cylinder 73 and decontrol workpiece, at this point, work
Part can fall directly on slide plate 74 and be slipped in hopper 75 along slide plate 74.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation
Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art
Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of thread chasing machine for accurate thread piece, including rack (1), the automatic chuck being rotationally connected on rack (1)
(2), the two-dimensional active platform (3) being movably connected on rack (1), the threading tool (4) being set on two-dimensional active platform (3)
With the cooling system (5) being set in rack (1), it is characterised in that: further include
Loading assemblies (6), the loading assemblies (6) include the stock guide (61) being set on two-dimensional active platform (3), are set to
Container (62) on stock guide (61) and the pusher cylinder (63) being set on stock guide (61), on the stock guide (61)
It is provided with the deflector chute that axis is in same level with the axis of automatic chuck (2) and is connected to container (62) lower end
(611), the mandril (64) put in deflector chute (611) is provided on the piston rod of the pusher cylinder (63)；
Blanking component (7), the blanking component (7) include that the mounting base (71) that is set on two-dimensional active platform (3), cylinder body are set
The pusher cylinder (72) for being placed in mounting base (71) upper end, the clamping jaw cylinder (73) being connected on the piston rod of pusher cylinder (72),
It is fixed on the slide plate (74) and be set to rack that on mounting base (71) and upper end is in below clamping jaw cylinder (73) movement routine
(1) hopper (75) being connected in and with slide plate (74) lower end, the clamping jaw of the clamping jaw cylinder (73) and the axis of automatic chuck (2)
In same level.
2. a kind of thread chasing machine for accurate thread piece according to claim 1, it is characterised in that: the stock guide
(61) be removably mounted on two-dimensional active platform (3), be plugged on the stock guide (61) more be vertically arranged and lower end insert
Tap into the positioning pin (612) in two-dimensional active platform (3).
3. a kind of thread chasing machine for accurate thread piece according to claim 2, it is characterised in that: each positioning pin
(612) it is disposed as rubber parts (721), the position of each positioning pin (612) lower end surface and the handover of positioning pin (612) outer wall
Chamfer setting.
4. a kind of thread chasing machine for accurate thread piece according to claim 1, it is characterised in that: the pusher cylinder
(63) slot (631) being coaxially set with piston rod is provided on piston rod, the slot (631) is internally provided with magnetic
Suction block (632), one end that the mandril (64) connect with pusher cylinder (63) are provided with the iron being plugged in slot (631)
(641).
5. a kind of thread chasing machine for accurate thread piece according to claim 1, it is characterised in that: the container
It (62) include the framework (621) that is fixed on stock guide (61) and the material-storing box (622) being removably mounted in framework (621),
The lower end of the material-storing box (622) is provided with the hang plate (6221) that two panels is in the setting of inverted "eight" shape shape, two hang plates
(6221) lower end forms the charging conduit (6222) being connected to together with deflector chute (611).
6. a kind of thread chasing machine for accurate thread piece according to claim 5, it is characterised in that: the framework
(621) include positive baffle (6211) that two panels is individually fixed in stock guide (61) rear and front end, each positive baffle (6211)
The upper part of two sides is provided with and positive baffle (6211) mutually perpendicular side baffle (6212).
7. a kind of thread chasing machine for accurate thread piece according to claim 1, it is characterised in that: the mounting base
(71) upper end is provided with guide pad (711), and the two sides of the guide pad (711) are respectively and fixedly provided with horizon bar (712), the promotion
The cylinder body of cylinder (72) is fixed on one end of two horizon bars (712) separate guide pad (711), the pusher cylinder (72)
The motion bar (713) for being fed through guide pad (711) is fixed on piston rod, the clamping jaw cylinder (73) is fixed on motion bar
(713) on one end far from pusher cylinder (72).
8. a kind of thread chasing machine for accurate thread piece according to claim 7, it is characterised in that: the motion bar
(713) two are provided with, is fixed with link block (714), institute on one end of two motion bars (713) separate pusher cylinder (72)
The both ends for stating link block (714) are plugged with the fastening bolt (715) being threadedly coupled with the cylinder body of clamping jaw cylinder (73).
9. a kind of thread chasing machine for accurate thread piece according to claim 1, it is characterised in that: the clamping jaw cylinder
(73) rubber parts (721) are provided on each clamping jaw, when blanking component (7) take out workpiece, each rubber parts (721) with
Workpiece contact.
10. a kind of thread chasing machine for accurate thread piece according to claim 1, it is characterised in that: the slide plate
(74) upper end is provided with cushion (741).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910097985.7A CN109693005A (en) | 2019-01-31 | 2019-01-31 | A kind of thread chasing machine for accurate thread piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910097985.7A CN109693005A (en) | 2019-01-31 | 2019-01-31 | A kind of thread chasing machine for accurate thread piece |
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| Publication Number | Publication Date |
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| CN109693005A true CN109693005A (en) | 2019-04-30 |
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ID=66234691
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910097985.7A Pending CN109693005A (en) | 2019-01-31 | 2019-01-31 | A kind of thread chasing machine for accurate thread piece |
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| CN112294157A (en) * | 2020-11-03 | 2021-02-02 | 谭兴洪 | Kitchen ware device capable of switching shapes of turners |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112294157A (en) * | 2020-11-03 | 2021-02-02 | 谭兴洪 | Kitchen ware device capable of switching shapes of turners |
| CN112294157B (en) * | 2020-11-03 | 2022-07-26 | 南京蹑波物联网科技有限公司 | Kitchen ware device capable of switching shapes of turner |
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Application publication date: 20190430 |