CN102990351A - Bolt gasket assembling device - Google Patents

Bolt gasket assembling device Download PDF

Info

Publication number
CN102990351A
CN102990351A CN2012105029473A CN201210502947A CN102990351A CN 102990351 A CN102990351 A CN 102990351A CN 2012105029473 A CN2012105029473 A CN 2012105029473A CN 201210502947 A CN201210502947 A CN 201210502947A CN 102990351 A CN102990351 A CN 102990351A
Authority
CN
China
Prior art keywords
bolt
plate
assembled
conduit
pad
Prior art date
Application number
CN2012105029473A
Other languages
Chinese (zh)
Other versions
CN102990351B (en
Inventor
李亚成
王洋
曹璞玉
吕忠斌
刘洋
Original Assignee
江苏大学
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 江苏大学 filed Critical 江苏大学
Priority to CN201210502947.3A priority Critical patent/CN102990351B/en
Publication of CN102990351A publication Critical patent/CN102990351A/en
Application granted granted Critical
Publication of CN102990351B publication Critical patent/CN102990351B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention provides a bolt gasket assembling device comprising a gasket distribution disc, a bolt duct, an intermittent rotation mechanism and a support, wherein the gasket distribution disc comprises a cover plate and a distribution plate; the cover plate is located above the distribution plate; an inclined bump is arranged on the cover plate; a gasket guide groove is formed in the inclined bump; the cover plate is integrally fixed on the support; a semi-open gasket groove is formed in the edge of the distribution plate and a through hole for the smooth passing of the rod part of a bolt to be assembled is formed at the center of the semi-open gasket groove; the bolt duct is located right above the semi-open gasket groove; the intermittent rotation mechanism is located on the support; a long shaft is arranged at the center of the intermittent rotation mechanism; a long shaft hole is formed in the center of the distribution plate; and the long shaft is in key connection with the long shaft hole; the intermittent rotation mechanism drives the distribution plate to rotate around the long shaft intermittently by means of the long shaft. With the bolt gasket assembling device provided by the invention, the bolt and the gasket can be assembled together conveniently, quickly and effectively; and therefore, the bolt gasket assembling device has a potential market prospect.

Description

A kind of spacer for bolt assembling device
Technical field
The present invention relates to a kind of assembling device, more precisely, it relates to a kind of for bolt, pad automatic assembling apparatus.
Background technology
In the present mechanical processing industry, use the local a lot of of bolt, in most of occasion, bolt and pad all are matching used.And the manufacturer of bolt, pad all is that bolt, pad are supplied separately in for the supply of material of downstream manufacturer.So the manufacturer in downstream must can use bolt and shim pack when carrying out production operation altogether.The process of this combination is by manually finishing, wasting time and energy mostly.When being work, the prerequisite of automatic assembling apparatus needs the feed that bolt to be assembled, pad can be orderly, constant, present known spacer for bolt automatic assembling apparatus all is to adopt air valve, servomotor etc. to jointly control the purpose that just can reach assembling, and structure is comparatively numerous and diverse and pressure gas source need to be provided in addition.The invention provides a more energy-conservation simple scheme, only adopt a motor that power is provided, compact conformation has reduced cost.
Summary of the invention
The invention provides a kind of spacer for bolt assembling device, this spacer for bolt assembling device can effectively be assembled together bolt to be assembled and pad, reaches the purpose of saving the labour, raising the efficiency.
The invention provides a kind of spacer for bolt assembling device, comprise pad distributing disc, bolt conduit, intermittent rotating mechanism and support; Described pad distributing disc comprises cover plate and distribution grid, and described cover plate is positioned at described distribution grid top, and described cover plate is provided with oblique projection, is provided with the pad approaching channel in the described oblique projection, and described cover plate integral body is fixed on the described support; Described distribution grid edge is provided with half open form pad groove, and the center of described half open form pad groove is provided with the through hole that the bar section that can make bolt to be assembled is passed smoothly; Described bolt conduit be positioned at described half open form pad groove directly over; Described intermittent drive mechanism is positioned on the described support, the center of described intermittent drive mechanism is provided with major axis, the center of described distribution grid is provided with the major axis hole, key is connected between described major axis and the described major axis hole, and described intermittent rotating mechanism drives described distribution grid around described major axis intermittent rotary by described major axis.
Particularly, described intermittent rotating mechanism is the single armed Sheave Device with the External Gear.
Described single armed Sheave Device with the External Gear by with the pivoted arm of straight pin, have the sheave of radial slot and the motor that is fixed on the frame forms, the pivoted arm rotation of described driven by motor band straight pin, when the straight pin on the pivoted arm of continuous rotation enters the radial slot of sheave, stir sheave and turn over; After straight pin produced radial slot, sheave stopped operating.
Described bolt conduit is provided with the adjustment plate, described adjustment plate comprises connecting plate, intermediate plate and gripper shoe, described connecting plate is fixedly connected with described bolt conduit bolt, described connecting plate and described gripper shoe are provided with some bolts hole, described intermediate plate is provided with some bolt slots, relies on the position of bolt in different bolt slots and bolt hole to realize the adjusting of the relative position between described connecting plate and described bolt conduit, described intermediate plate and described connecting plate, described intermediate plate and the described gripper shoe.
Further, described bolt conduit has T-shaped mouthful at the side upper end-face edge, and the opening lateral dimension on described T-shaped mouthful of top is greater than bolt nut lateral dimension to be assembled.
Further, described bolt conduit has ganoid lower T-shaped mouthful in the lower end, side, the opening lateral dimension on described lower T-shaped mouthful of top is greater than bolt nut lateral dimension to be assembled, the open height on described lower T-shaped mouthful of top is greater than the height of bolt nut to be assembled, T-shaped mouthful inner chamber is that infundibulate is drawn the hole under the described bolt conduit, described infundibulate is drawn the minimal openings aperture place in hole less than the shank of bolt outside dimension of bolt to be assembled, makes bolt to be assembled slip into the opening part that the nut of its bolt to be assembled behind the bolt conduit can be still in described lower T shape mouth top from upper T shape mouth.
Rely on spacer for bolt assembling device of the present invention can be easily and fast, effectively bolt, shim pack are fitted together, and only provide power with a motor, simple in structure, greatly lowered human cost and production efficiency, have the market potential prospect.
Description of drawings
For clearer explanation technical scheme of the present invention, the below will do one to the accompanying drawing of required use in embodiment or the existing technical description and introduce simply.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of distributing disc of the present invention.
Fig. 3 is the oblique projection cube structure schematic diagram on the cover plate of the present invention.
Fig. 4 is bolt guide-tube structure schematic diagram of the present invention.
Fig. 5 is adjustable plate structural representation of the present invention.
Fig. 6 is Geneva mechanism of the present invention, pad distributing disc and bolt conduit relative motion schematic diagram.
Fig. 7 be the present invention when working the spacer for bolt assembling finish schematic diagram.
Distribution grid was to the force diagram of the spacer for bolt that assembles when Fig. 8 was discharging of the present invention.
The specific embodiment
Such as Fig. 1, Fig. 2 and shown in Figure 3, spacer for bolt assembling device of the present invention comprises pad distributing disc, bolt conduit 5, intermittent rotating mechanism and support 9, described pad distributing disc comprises cover plate 31 and distribution grid 32, described cover plate 31 is positioned at described distribution grid 32 tops, described cover plate 31 is provided with oblique projection 33, be provided with pad approaching channel 37 in the described oblique projection 33, described cover plate 31 integral body are fixed on the described support 9; Described distribution grid 32 edges are provided with half open form pad groove 34, and the center of described half open form pad groove 34 is provided with the through hole 35 that the bar section that can make bolt to be assembled is passed smoothly; Described bolt conduit 5 be positioned at described half open form pad groove 34 directly over, described distribution grid 32 is according to the size of gasket design pad approaching channel 37 and half open form pad groove 34 to be assembled, its size slips into smoothly, skids off and be advisable to be fit to pad to be assembled.
Shown in Figure 4, described bolt conduit 5 has T-shaped mouthful 51 at the side upper end-face edge, the opening lateral dimension on described T-shaped mouthful of 51 tops is greater than bolt nut lateral dimension to be assembled, described bolt conduit 5 has ganoid lower T-shaped mouthful 52 in the lower end, side, the opening lateral dimension on described lower T-shaped mouthful of 52 tops is greater than bolt 4 nut lateral dimensions to be assembled, the open height on described lower T-shaped mouthful of 52 tops is greater than the height of bolt 4 nuts to be assembled, T-shaped mouthful 52 inner chamber is that infundibulate is drawn the hole under the described bolt conduit, described infundibulate is drawn the minimal openings aperture place in hole less than the shank of bolt outside dimension of bolt 4 to be assembled, makes bolt 4 to be assembled slip into the opening part that the nut of its bolts 4 to be assembled behind the bolt conduit 5 can be still in described lower T shape mouth 52 tops from upper T shape mouth; Described bolt conduit 5 is provided with adjusts plate 6, described adjustment plate comprises connecting plate 61, intermediate plate 62 and gripper shoe 63, described connecting plate 61 is fixedly connected with described bolt conduit 5 bolts, described connecting plate 61 and described gripper shoe 63 are provided with some bolts hole, described intermediate plate 62 is provided with some bolt slots, rely on the position of bolt in different bolt slots and bolt hole to realize described connecting plate 61 and described bolt conduit 5, described intermediate plate 62 and described connecting plate 61, the adjusting of the relative position between described intermediate plate 62 and the described gripper shoe 63, thereby the whole adjusting that realizes adjusting 6 pairs of bolt conduit 5 positions of plate.(shown in Figure 5); Described intermittent drive mechanism is fixed on the described support 9, among Fig. 6, described intermittent rotating mechanism is the single armed Sheave Device with the External Gear, namely, the single armed Sheave Device with the External Gear by with the pivoted arm 22 of straight pin 21, have the sheave 23 of six radial slots and the motor 10 that is fixed on the frame forms, motor 10 drives pivoted arm 22 rotations with straight pin 21, when the straight pin 21 on the pivoted arm of continuous rotation enters radial slot, stirs sheave 23 and turns over; After straight pin 21 produced radial slot, sheave 23 stopped operating, and pivoted arm 22 circles, sheave 23 finish once turning stop transport moving; The center of described sheave 23 is fixed with major axis 8, the center of described distribution grid 32 is provided with major axis hole 36(Fig. 2), key is connected between described major axis 8 and the described major axis hole 36, described intermittent rotating mechanism drives described distribution grid 32 around described major axis 8 intermittent rotaries by the major axis 8 on the sheave 23, described intermittent rotating mechanism revolution once stops, the center of circle of described half open form pad groove 34 is all on the longitudinal center cross section of described pad approaching channel 37, its purpose of described intermittent drive mechanism is to provide an intermittently power and do not limit its form, be that the hexagonal sheave can become other forms such as triangle sheave such as the Geneva mechanism among the embodiment, coupling gear can become other forms such as toothed belt transmission.
Pad 1 slips in the pad approaching channel 37, because the center of circle of half open form pad groove 34 is all the time all on the longitudinal center cross section of described pad approaching channel 37, pad 1 is slided in the half open form pad groove 34 on the distribution grid smoothly by pad approaching channel 37, under the effect of motor 10, pivoted arm 22 with straight pin 21 rotates continuously, and then drive sheave 23 intermittent rotaries, and major axis 8 is also made intermittent rotary under the effect of sheave 23, and distribution grid 32 is also followed major axis 8 and is done synchronously intermittent rotary.Pause during intermittent rotary each time, the center of circle of half open form pad groove 34 is all the time all on the longitudinal center cross section of described pad approaching channel 37, the half open form pad groove 34 that is distribution grid 32 edges always is in the position of aiming at pad approaching channel 37, and pad 1 to be assembled can slip in the half open form pad groove 34 at distribution grid 32 edges through the pad approaching channel 37 of cover plate 2.So, in the intermittent rotary process, pad 1 to be installed is by in the pad approaching channel 37 half open form pad groove 34 that enters into distribution grid 32 edges intermittently.The upper T-shaped mouth 51 that open bolt conduit 5 sides and lower T shape mouth 52 are fit to bolts and slip into from the side smoothly, skid off.Adjust the easily relative position of adjusting bolt conduit 5 and distributing disc 32 of plate 6.
The each time pause of distribution grid 32 intermittent rotaries, rest on pads 1 in the half open form pad groove 34 can both forward to smoothly bolt conduit 5 under.Thus, the bolt to be installed 4 that enters bolt conduit 5 can glide smoothly, passes the pad to be installed 1 that is placed in the half open form pad groove 34, and then reaches the state that bolt and pad assemble, and it is shown in Figure 7 to form spacer for bolt 11(); When the spacer for bolt 11 that assembles need to carry out the discharging operation, a loading process is as shown in Figure 8 arranged, a peripheral force that provides when being rotated by distribution grid 32 can provide a power radially to the spacer for bolt 11 that assembles under the effect of half open form pad 34, so, the spacer for bolt 11 that assembles skids off after the bolt conduit 5, self inertia force and the effect of the half open form pad 34 at distribution grid 32 edges under break away from smoothly the purpose that distribution grid reaches discharging.
Progressive part of the present invention is that the distributing disc of (1) described device can dismantle smoothly, according to the diameter of the bolt that assembles, pad, different distributing discs can be installed; (2) described bolt conduit is detachable, can change different bolt conduits according to the varying in size of diameter of the bolt that assembles.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to aforementioned each embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that; It still can be made amendment to the technical scheme that aforementioned embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (6)

1. a spacer for bolt assembling device is characterized in that: comprise pad distributing disc, bolt conduit (5), intermittent rotating mechanism and support (9); Described pad distributing disc comprises cover plate (31) and distribution grid (32), described cover plate (31) is positioned at described distribution grid (31) top, described cover plate (31) is provided with oblique projection (33), be provided with pad approaching channel (37) in the described oblique projection (33), described cover plate (31) integral body is fixed on the described support (9); Described distribution grid (32) edge is provided with half open form pad groove (34), and the center of described half open form pad groove (34) is provided with the through hole (35) that the bar section that can make bolt to be assembled is passed smoothly; Described bolt conduit (5) be positioned at described half open form pad groove (34) directly over; Described intermittent drive mechanism is positioned on the described support (9), the center of described intermittent drive mechanism is provided with major axis (8), the center of described distribution grid (32) is provided with major axis hole (36), key is connected between described major axis (8) and the described major axis hole (36), and described intermittent rotating mechanism drives described distribution grid (32) around described major axis (8) intermittent rotary by described major axis (8).
2. a kind of spacer for bolt assembling device according to claim 1, it is characterized in that: described intermittent rotating mechanism is the single armed Sheave Device with the External Gear.
3. a kind of spacer for bolt assembling device according to claim 2, it is characterized in that: described single armed Sheave Device with the External Gear by the pivoted arm (22) of band straight pin (21), have the sheave (23) of radial slot and the motor (10) that is fixed on the frame (9) forms, described motor (10) drives pivoted arm (22) rotation with straight pin, when the straight pin on the pivoted arm of continuous rotation (21) enters the radial slot of sheave, stir sheave (23) and turn over; After straight pin (21) produced radial slot, sheave (23) stopped operating.
4. a kind of spacer for bolt assembling device according to claim 1, it is characterized in that: also be provided with on the described bolt conduit (5) and adjust plate (6), described adjustment plate (6) comprises connecting plate (61), intermediate plate (62) and gripper shoe (63), described connecting plate (61) is fixedly connected with described bolt conduit (5) bolt, described connecting plate (61) and described gripper shoe (63) are provided with some bolts hole, described intermediate plate (62) is provided with some bolt slots, relies on the position of bolt in different bolt slots and bolt hole to realize described connecting plate (61) and described bolt conduit (5), described intermediate plate (62) and described connecting plate (61), the adjusting of the relative position between described intermediate plate (62) and the described gripper shoe (63).
5. a kind of spacer for bolt assembling device according to claim 1, it is characterized in that: described bolt conduit (5) has T-shaped mouthful (51) at the side upper end-face edge, and the opening lateral dimension on described T-shaped mouthful of (51) top is greater than bolt nut lateral dimension to be assembled.
6. a kind of spacer for bolt assembling device according to claim 1, it is characterized in that: described bolt conduit (5) has ganoid lower T-shaped mouthful (52) in the lower end, side, the opening lateral dimension on described lower T-shaped mouthful of (52) top is greater than bolt to be assembled (4) nut lateral dimension, the open height on described lower T-shaped mouthful of (52) top is greater than the height of bolt to be assembled (4) nut, the inner chamber of T-shaped mouthful (52) is that infundibulate is drawn the hole under the described bolt conduit, described infundibulate is drawn the minimal openings aperture place in hole less than the shank of bolt outside dimension of bolt to be assembled (4), makes bolt to be assembled (4) slip into the opening part that the nut of its bolt to be assembled (4) behind the bolt conduit (5) can be still in described lower T shape mouth (52) top from upper T shape mouth.
CN201210502947.3A 2012-11-30 2012-11-30 A kind of spacer for bolt assembling device Expired - Fee Related CN102990351B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210502947.3A CN102990351B (en) 2012-11-30 2012-11-30 A kind of spacer for bolt assembling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210502947.3A CN102990351B (en) 2012-11-30 2012-11-30 A kind of spacer for bolt assembling device

Publications (2)

Publication Number Publication Date
CN102990351A true CN102990351A (en) 2013-03-27
CN102990351B CN102990351B (en) 2016-04-06

Family

ID=47919749

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210502947.3A Expired - Fee Related CN102990351B (en) 2012-11-30 2012-11-30 A kind of spacer for bolt assembling device

Country Status (1)

Country Link
CN (1) CN102990351B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106044182A (en) * 2016-07-14 2016-10-26 浙江卓怡纺织有限公司 Tank feeding device
CN106041509A (en) * 2016-07-22 2016-10-26 上海天美天平仪器有限公司 Automatic bolt butterfly shim sleeving machine
CN106425448A (en) * 2016-12-15 2017-02-22 上海应用技术大学 Device for fast placing washers on bolts
CN106826209A (en) * 2016-12-29 2017-06-13 广州凯耀资产管理有限公司 A kind of spacer for bolt erecting device and its installation method
CN107364690A (en) * 2017-06-15 2017-11-21 上海工程技术大学 A kind of ring rotation pallet conveyer for capturing small parts
CN110421345A (en) * 2019-07-17 2019-11-08 程康康 A kind of bolt washer sleeving machine
CN112108862A (en) * 2020-11-23 2020-12-22 潍坊市利程建材科技有限公司 Mechanical device for placing washer on bolt

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56119341A (en) * 1980-01-11 1981-09-18 Nec Corp Combining device of screw and nut
CN2242757Y (en) * 1995-06-15 1996-12-18 刘英宗 Device for automatically fitting and joining screw and washer
US5616082A (en) * 1995-03-27 1997-04-01 Illinois Tool Works Inc. Apparatus for assembling a fastener to a washer
US20080070469A1 (en) * 2006-09-20 2008-03-20 Konstruktionsbuero Wuethrich Construction set comprising at least one plate
CN201098793Y (en) * 2007-11-27 2008-08-13 上海振好机械有限公司 Assistant nesting device for screw gasket
CN201098678Y (en) * 2007-09-28 2008-08-13 上海振好机械有限公司 Screw gasket auxiliary telescoping combination screening device
CN201807952U (en) * 2010-09-25 2011-04-27 山东潍坊福田模具有限责任公司 Special clamp for grinding narrow and high workpiece
CN201871956U (en) * 2010-09-30 2011-06-22 芜湖航天汽车连杆有限公司 Three-way positioning tool clamp for machining small end of connecting rod
CN102335870A (en) * 2011-10-20 2012-02-01 无锡海特精密模具有限公司 Clamping jig for grinding machine

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56119341A (en) * 1980-01-11 1981-09-18 Nec Corp Combining device of screw and nut
US5616082A (en) * 1995-03-27 1997-04-01 Illinois Tool Works Inc. Apparatus for assembling a fastener to a washer
CN2242757Y (en) * 1995-06-15 1996-12-18 刘英宗 Device for automatically fitting and joining screw and washer
US20080070469A1 (en) * 2006-09-20 2008-03-20 Konstruktionsbuero Wuethrich Construction set comprising at least one plate
CN201098678Y (en) * 2007-09-28 2008-08-13 上海振好机械有限公司 Screw gasket auxiliary telescoping combination screening device
CN201098793Y (en) * 2007-11-27 2008-08-13 上海振好机械有限公司 Assistant nesting device for screw gasket
CN201807952U (en) * 2010-09-25 2011-04-27 山东潍坊福田模具有限责任公司 Special clamp for grinding narrow and high workpiece
CN201871956U (en) * 2010-09-30 2011-06-22 芜湖航天汽车连杆有限公司 Three-way positioning tool clamp for machining small end of connecting rod
CN102335870A (en) * 2011-10-20 2012-02-01 无锡海特精密模具有限公司 Clamping jig for grinding machine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106044182A (en) * 2016-07-14 2016-10-26 浙江卓怡纺织有限公司 Tank feeding device
CN106041509A (en) * 2016-07-22 2016-10-26 上海天美天平仪器有限公司 Automatic bolt butterfly shim sleeving machine
CN106425448A (en) * 2016-12-15 2017-02-22 上海应用技术大学 Device for fast placing washers on bolts
CN106826209A (en) * 2016-12-29 2017-06-13 广州凯耀资产管理有限公司 A kind of spacer for bolt erecting device and its installation method
CN106826209B (en) * 2016-12-29 2019-04-05 广州凯耀资产管理有限公司 A kind of spacer for bolt mounting device and its installation method
CN107364690A (en) * 2017-06-15 2017-11-21 上海工程技术大学 A kind of ring rotation pallet conveyer for capturing small parts
CN110421345A (en) * 2019-07-17 2019-11-08 程康康 A kind of bolt washer sleeving machine
CN110421345B (en) * 2019-07-17 2021-04-13 江苏柯德展示道具有限公司 Washer sleeving machine for bolts
CN112108862A (en) * 2020-11-23 2020-12-22 潍坊市利程建材科技有限公司 Mechanical device for placing washer on bolt

Also Published As

Publication number Publication date
CN102990351B (en) 2016-04-06

Similar Documents

Publication Publication Date Title
CN203843285U (en) Cutting machine for stainless steel pipe
CN103681168B (en) Spherical bulb production equipment
CN203343618U (en) Multi-station workbench used for laser marking machine
CN202508668U (en) Full-automatic winding machine
CN204872432U (en) Vertical rotary cabinet
CN105290944A (en) Automatic polishing device
CN203875586U (en) Fluorine mouth nut locking mechanism
CN206464379U (en) A kind of full-automatic snake bend machine
CN202225056U (en) Composite polishing machine
CN207218484U (en) A kind of fan blade rotation press-loading device of rotor
CN203917546U (en) A kind of multiple site punching device
CN107877160B (en) A kind of lamp holder assembly method
CN204416558U (en) Move materials device
CN105415115B (en) A kind of valve stem end surface milling drum
CN103598067B (en) Sprinkler turnplate driven by stepping motor and control method
CN103496544A (en) Width adjustable type transportation flow channel
CN202557855U (en) Film feeding and cutting device
US20130139557A1 (en) Washing Machine Drive System
CN104842254A (en) Hub polisher
CN205212659U (en) Motor rotor machining equipment
CN205736645U (en) Hub fixture and self-centering rotating disk and tire changer
CN202242718U (en) Edge knurling machine
CN207390408U (en) A kind of multistation feeder
CN104786530A (en) Winding device on wrapping machine
CN201147814Y (en) Special thread rolling machine for pencil sharpener helical hob cutter

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20160406

Termination date: 20191130