CN103448217A - Oblique core pulling demoulding device for driving helical racks - Google Patents
Oblique core pulling demoulding device for driving helical racks Download PDFInfo
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- CN103448217A CN103448217A CN2013104063556A CN201310406355A CN103448217A CN 103448217 A CN103448217 A CN 103448217A CN 2013104063556 A CN2013104063556 A CN 2013104063556A CN 201310406355 A CN201310406355 A CN 201310406355A CN 103448217 A CN103448217 A CN 103448217A
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- push rod
- rod
- loosing core
- helical
- helical rack
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Abstract
The invention discloses an oblique core pulling demoulding device for driving helical racks. The oblique core pulling demoulding device for driving helical racks comprises an oblique core pulling block (1), an ejection rod (2), a front push rod (3), a rear push rod (31), a core pulling guide block (4), an ejection rod guide block (5) and a fixed connection block (6). According to the device composed of the components above, the core pulling guide block and the ejection rod guide block are connected in series left and right in a sliding mode by the front push rod and the rear push rod; an upper helical rack of the oblique core pulling block is meshed with a front A helical rack and a rear A helical rack in a sliding mode in the core pulling guide block; a lower helical rack of the ejection rod is meshed with a front B helical rack and a rear B helical rock in a sliding mode in the ejection rod guide block; in operation, according to the technical scheme that the front push rod and the push rod move rightward, the oblique core pulling block performs pulling movement downward obliquely, and the ejection rod performs the ejection movement vertically upward, and through driving the helical racks, the oblique pulling and demoulding of an injection molding mould can achieve the aims of improving the oblique pulling stability and production efficiency, and reducing the mould body, weight and cost.
Description
Technical field
The present invention relates to a kind of stripper apparatus of injection mold, specifically refer to for the piece of tiltedly loosing core and tiltedly take out the stripper apparatus of tiltedly loosing core of a kind of helical rack transmission of the demoulding from the elongate tubular structure position of product.
Background technology
The mode that the stripper apparatus of loosing core of prior art adopts oil cylinder to pull the piece of loosing core to detach product is carried out the demoulding, but cylinder movement less stable, the situation that rollback is not in place for example appears sometimes, moreover the run duration of oil cylinder core-pulling mechanism before after the mould die sinking, product is deviate from respectively and product deviate from after before the mould matched moulds, increased the molding cycle of product, and the method that adds oil cylinder in the mould outside has not only increased the volume and weight of mould, and increased the manufacturing cost of mould, therefore, the prior art existence and stability is poor, the formed product cycle is long, volume is large, the problems and shortcomings that Heavy Weight and manufacturing cost are high.
Summary of the invention
The problems and shortcomings that exist for above-mentioned prior art, the present invention adopts by the piece of tiltedly loosing core, push rod, front push rod, rear push-rod, the guide pad of loosing core, the push rod guide pad, be fixedly connected with the device that piece forms, tiltedly the loose core cylinder bottom of piece is symmetrical before and after being provided with, acclivitous helical teeth row are called helical rack from left to right, it is symmetrical before and after the cylinder bottom of push rod is provided with, downward-sloping helical teeth row are called lower helical rack from left to right, front push rod, rear push-rod is the semicolumn rod component that is provided with helical rack, wherein, the left part of front push rod trailing flank is provided with acclivitous helical teeth row from left to right and is called front A helical rack, the right part of front push rod trailing flank is provided with downward-sloping from left to right helical teeth row and is called front B helical rack, rear push-rod is with symmetrical identical before and after front push rod, and the left part of rear push-rod leading flank is provided with acclivitous helical teeth row from left to right and is called rear A helical rack, and the right part of rear push-rod leading flank is provided with downward-sloping from left to right helical teeth row and is called rear B helical rack, the A push rod guide hole that the guide pad of loosing core is provided with two left and right directions and is parallel to each other, be provided with a through hole be tilted to the right from top to bottom between two A push rod guide holes and be called oblique guide hole, and A push rod guide hole communicates with oblique guide hole, the push rod guide pad is provided with two B push rod guide holes corresponding with A push rod guide hole, the through hole that is provided with an above-below direction between two B push rod guide holes is called straight guide hole, and B push rod guide hole communicates with straight guide hole, the guide pad of loosing core is positioned at the left of push rod guide pad, and the trailing flank of front push rod is parallel with the leading flank of rear push-rod relatively through A push rod guide hole and B push rod guide hole, and will loose core guide pad and push rod guide pad slide and be connected on front push rod and rear push-rod, the upper helical rack of piece of tiltedly loosing core interts and tiltedly in guide hole, with front A helical rack, rear A helical rack, is sliding and be connected with a joggle, and the lower helical rack of push rod interts and slides and be connected with a joggle with front B helical rack, rear B helical rack in straight guide hole, being fixedly connected with piece is fixedly connected with the right-hand member of front push rod and rear push-rod, during application, the guide pad of loosing core is fixedly connected with the support plate of mould with the push rod guide pad, is fixedly connected with piece and is connected with the drive unit of mould, loose core while ejecting, drive unit pulls front push rod and rear push-rod to move right through being fixedly connected with piece, is subject to the helical teeth effect of sliding and meshing, and the piece of tiltedly loosing core is done downward oblique extraction campaign, and push rod ejects motion vertically upward, while resetting, drive unit push rod and rear push-rod before being fixedly connected with piece and promoting reset left, the piece of tiltedly loosing core is upward to resetting, the technical scheme that push rod resets vertically downward, provide a kind of stripper apparatus of tiltedly loosing core of helical rack transmission, is intended to by the helical rack transmission, what make injection mold be provided with the elongate tubular structure position for product tiltedly takes out the demoulding, reach and improve stability, shortening formed product cycle, reduce mould body and weight, reduce the purpose of die manufacturing cost.
The object of the present invention is achieved like this: a kind of stripper apparatus of tiltedly loosing core of helical rack transmission, comprise the piece of tiltedly loosing core, push rod, front push rod, rear push-rod, the guide pad of loosing core, push rod guide pad, be fixedly connected with piece, wherein: the steel components that the described piece of tiltedly loosing core is up-small and down-big cylinder step rod, the top small stair cylinder of piece of tiltedly loosing core is provided with the profile identical with the elongate tubular structure of product, and the front and back sides of the large step cylinder in the bottom of the piece of tiltedly loosing core is arranged with acclivitous helical teeth row from left to right and is called helical rack;
The steel components that described push rod is the cylinder rod, the front and back sides of the bottom cylinder of push rod is arranged with downward-sloping from left to right helical teeth row and is called lower helical rack;
Described front push rod or rear push-rod are the semicolumn rod component that a side is provided with helical rack, wherein, the left part of the trailing flank of described front push rod is provided with acclivitous helical teeth row from left to right and is called front A helical rack, and the right part of the trailing flank of front push rod is provided with downward-sloping from left to right helical teeth row and is called front B helical rack; The planform of described rear push-rod is with symmetrical identical before and after the planform of front push rod, the left part of the leading flank of rear push-rod is provided with acclivitous helical teeth row from left to right and is called rear A helical rack, and the right part of the leading flank of rear push-rod is provided with downward-sloping from left to right helical teeth row and is called rear B helical rack; Described helical teeth row refer to oblique teeth arranged in columns;
The steel components that the described guide pad of loosing core is rectangular block shape, two through holes that the guide pad Central Symmetry of loosing core is provided with left and right directions and horizontal parallel are called A push rod guide hole, be provided with a through hole be tilted to the right from top to bottom between two described A push rod guide holes and be called oblique guide hole, inner the communicating in the inner hole with described oblique guide hole, the hole of described A push rod guide hole;
The steel components that described push rod guide pad is rectangular block shape, the push rod guide pad is provided with corresponding two the identical through holes of two described A push rod guide holes of the guide pad of loosing core and is called B push rod guide hole, the through hole that is provided with an above-below direction between two described B push rod guide holes is called straight guide hole, and the hole of described B push rod guide hole is inner to communicate with the inside, hole of described straight guide hole;
Describedly be fixedly connected with the steel components that piece is rectangular block shape, be fixedly connected with piece and be provided with corresponding two the identical through holes of two described A push rod guide holes of the guide pad of loosing core and be called connecting hole;
The guide pad of loosing core is positioned at the left of push rod guide pad, and the trailing flank of front push rod is parallel with the leading flank of rear push-rod relatively respectively through described A push rod guide hole and described B push rod guide hole, and will loose core guide pad and push rod guide pad slide and be connected on front push rod and rear push-rod; The described upper helical rack of piece of tiltedly loosing core interts and slides and be connected with a joggle with described front A helical rack, rear A helical rack in the described oblique guide hole of the guide pad of loosing core, and the described lower helical rack of push rod interts and slides and be connected with a joggle with described front B helical rack, rear B helical rack in the described straight guide hole of push rod guide pad; Being fixedly connected with piece is fixedly connected with the right-hand member of front push rod and rear push-rod by described connecting hole.
The direction face of structure representation is divided into up, down, left, right, front, rear side, and wherein, front is the face in the face of apparatus main body, and back is the face relative with described front.
Operation principle and beneficial effect
During application, the guide pad of loosing core is fixedly connected with the support plate of mould with the push rod guide pad, is fixedly connected with piece and is connected with the drive unit of mould;
Loose core while ejecting, drive unit pulls front push rod and rear push-rod to move right through being fixedly connected with piece, is subject to the helical teeth effect of sliding and meshing, and the piece of tiltedly loosing core is done the oblique downward motion of loosing core, and simultaneously, push rod is done the motion that ejects vertically upward;
While resetting, drive unit push rod and rear push-rod before being fixedly connected with piece and promoting reset left, and the piece of tiltedly loosing core is oblique upwards to be resetted, and push rod resets vertically downward.
This apparatus structure is simple, reliable operation, be applied to product be provided with the elongate tubular structure position injection mold tiltedly take out the demoulding, improved stability, shortened the cycle of formed product, reduced body and the weight of mould, thereby reduced die manufacturing cost.
Above-mentioned, the present invention adopts by the piece of tiltedly loosing core, push rod, front push rod, rear push-rod, the guide pad of loosing core, push rod guide pad, is fixedly connected with the device that piece forms, and the piece of tiltedly loosing core is provided with helical rack, and push rod is provided with lower helical rack, the left part of front push rod trailing flank is provided with front A helical rack, and the right part of front push rod trailing flank is provided with front B helical rack, the left part of rear push-rod leading flank is provided with rear A helical rack, and the right part of rear push-rod leading flank is provided with rear B helical rack, the guide pad of loosing core is provided with A push rod guide hole and oblique guide hole, and the push rod guide pad is provided with B push rod guide hole and straight guide hole, and front push rod and rear push-rod are through A push rod guide hole and B push rod guide hole guide pad and the push rod guide pad series winding that horizontally slips of loosing core, the upper helical rack of piece of tiltedly loosing core is tiltedly sliding and is being connected with a joggle with front A helical rack, rear A helical rack in guide hole, and the lower helical rack of push rod slides and is being connected with a joggle with front B helical rack, rear B helical rack in straight guide hole, being fixedly connected with piece is fixedly connected with the right-hand member of front push rod and rear push-rod, during application, the guide pad of loosing core is fixedly connected with the support plate of mould with the push rod guide pad, is fixedly connected with piece and is connected with the drive unit of mould, loose core while ejecting, front push rod and rear push-rod move right, and the downward oblique work of the piece of tiltedly loosing core is extracted motion out, and simultaneously, push rod ejects motion vertically upward, while resetting, drive unit push rod and rear push-rod before being fixedly connected with piece and promoting reset left, the piece of tiltedly loosing core is upward to resetting, the technical scheme that push rod resets vertically downward, overcome the prior art existence and stability poor, the formed product cycle is long, volume is large, the problems and shortcomings that Heavy Weight and manufacturing cost are high, the stripper apparatus of tiltedly loosing core of a kind of helical rack transmission provided, by the helical rack transmission, what make injection mold be provided with the elongate tubular structure position for product tiltedly takes out the demoulding, reached raising stability, shorten the formed product cycle, reduce mould body and weight, reduce the purpose of die manufacturing cost.
The accompanying drawing explanation
Fig. 1 is the axle geodesic structure schematic diagram of the stripper apparatus of tiltedly loosing core of a kind of helical rack transmission of the present invention;
Fig. 2 is the front view structural representation of the stripper apparatus of tiltedly loosing core of a kind of helical rack transmission of the present invention;
Fig. 3 is the stripper apparatus of tiltedly loosing core of a kind of helical rack transmission of the present invention, and being operated in looses core ejects the principle schematic of tense.
Below in conjunction with the embodiment in accompanying drawing, the present invention is described in further detail, but should not be construed as any limitation of the invention.
In figure: the piece 1 of tiltedly loosing core, push rod 2, front push rod 3, rear push-rod 31, the guide pad 4 of loosing core, push rod guide pad 5, be fixedly connected with piece 6, product 01, resilient key 02.
The specific embodiment
Consult Fig. 1～Fig. 3, the stripper apparatus of tiltedly loosing core of a kind of helical rack transmission of the present invention, comprise the piece 1 of tiltedly loosing core, push rod 2, front push rod 3, rear push-rod 31, the guide pad 4 of loosing core, push rod guide pad 5, be fixedly connected with piece 6, wherein: the described steel components of piece 1 for up-small and down-big cylinder step rod of tiltedly loosing core, the top small stair cylinder of piece 1 of tiltedly loosing core is provided with the profile identical with the elongate tubular structure of product 01, and the front and back sides of the large step cylinder in bottom of the piece 1 of tiltedly loosing core is arranged with acclivitous helical teeth row from left to right and is called helical rack;
The steel components that described push rod 2 is the cylinder rod, the front and back sides of the bottom cylinder of push rod 2 is arranged with downward-sloping from left to right helical teeth row and is called lower helical rack;
Described front push rod 3 or rear push-rod 31 are the semicolumn rod component that a side is provided with helical rack, wherein, the left part of the trailing flank of described front push rod 3 is provided with acclivitous helical teeth row from left to right and is called front A helical rack, and the right part of the trailing flank of front push rod 3 is provided with downward-sloping from left to right helical teeth row and is called front B helical rack; The planform of described rear push-rod 31 is symmetrical identical with the planform front and back of front push rod 3, the left part of the leading flank of rear push-rod 31 is provided with acclivitous helical teeth row from left to right and is called rear A helical rack, and the right part of the leading flank of rear push-rod 31 is provided with downward-sloping from left to right helical teeth row and is called rear B helical rack; Described helical teeth row refer to oblique teeth arranged in columns;
The described guide pad 4 of loosing core is for the steel components of rectangular block shape, two through holes that guide pad 4 Central Symmetries of loosing core are provided with left and right directions and horizontal parallel are called A push rod guide hole, be provided with a through hole be tilted to the right from top to bottom between two described A push rod guide holes and be called oblique guide hole, inner the communicating in the inner hole with described oblique guide hole, the hole of described A push rod guide hole;
The steel components that described push rod guide pad 5 is rectangular block shape, push rod guide pad 5 is provided with corresponding two the identical through holes of two described A push rod guide holes of the guide pad 4 of loosing core and is called B push rod guide hole, the through hole that is provided with an above-below direction between two described B push rod guide holes is called straight guide hole, and the hole of described B push rod guide hole is inner to communicate with the inside, hole of described straight guide hole;
The described piece 6 that is fixedly connected with is for the steel components of rectangular block shape, is fixedly connected with piece 6 and is provided with corresponding two the identical through holes of two described A push rod guide holes of the guide pad 4 of loosing core and is called connecting hole;
The guide pad 4 of loosing core is positioned at the left of push rod guide pad 5, the trailing flank of front push rod 3 is parallel with the leading flank of rear push-rod 31 relatively respectively through described A push rod guide hole and described B push rod guide hole, and will loose core guide pad 4 and push rod guide pad 5 slide and be connected on front push rod 3 and rear push-rod 31; The described upper helical rack of piece 1 of tiltedly loosing core interts and slides and be connected with a joggle with described front A helical rack, rear A helical rack in the described oblique guide hole of guide pad 4 of loosing core, and the described lower helical rack of push rod 2 interts and slides and be connected with a joggle with described front B helical rack, rear B helical rack in the described straight guide hole of push rod guide pad 5; Being fixedly connected with piece 6 is fixedly connected with front push rod 3 by described connecting hole with the right-hand member of rear push-rod 31.
The direction face of structure representation is divided into up, down, left, right, front, rear side, and wherein, front is the face in the face of apparatus main body, and back is the face relative with described front.
Operation principle and beneficial effect
During application, the guide pad 4 of loosing core is fixedly connected with the support plate of mould with push rod guide pad 5, is fixedly connected with piece 6 and is connected with the drive unit of mould;
Loose core while ejecting, drive unit pulls front push rod 3 and rear push-rod 31 to move right through being fixedly connected with piece 6, is subject to the helical teeth effect of sliding and meshing, and the piece 1 of tiltedly loosing core is done the oblique downward motion of loosing core, and simultaneously, push rod 2 is done the motion that ejects vertically upward;
While resetting, drive unit push rod 3 and rear push-rod 31 before being fixedly connected with piece 6 and promoting reset left, tiltedly loose core that piece 1 is oblique upwards to be resetted, and push rod 2 resets vertically downward.
This apparatus structure is simple, reliable operation, be applied to product be provided with the elongate tubular structure position injection mold tiltedly take out the demoulding, improved stability, shortened the cycle of formed product, reduced body and the weight of mould, thereby reduced die manufacturing cost.
Claims (1)
1. the stripper apparatus of tiltedly loosing core of a helical rack transmission, comprise the piece of tiltedly loosing core (1), push rod (2), front push rod (3), rear push-rod (31), the guide pad of loosing core (4), push rod guide pad (5), be fixedly connected with piece (6), it is characterized in that: the described steel components of piece (1) for up-small and down-big cylinder step rod of tiltedly loosing core, the top small stair cylinder of piece (1) of tiltedly loosing core is provided with the profile identical with the elongate tubular structure of product (01), and the front and back sides of the large step cylinder in bottom of the piece (1) of tiltedly loosing core is arranged with acclivitous helical teeth row from left to right and is called helical rack;
The steel components that described push rod (2) is the cylinder rod, the front and back sides of the bottom cylinder of push rod (2) is arranged with downward-sloping from left to right helical teeth row and is called lower helical rack;
Described front push rod (3) or rear push-rod (31) are the semicolumn rod component that a side is provided with helical rack, wherein, the left part of the trailing flank of described front push rod (3) is provided with acclivitous helical teeth row from left to right and is called front A helical rack, and the right part of the trailing flank of front push rod (3) is provided with downward-sloping from left to right helical teeth row and is called front B helical rack; The planform of described rear push-rod (31) is symmetrical identical with the planform front and back of front push rod (3), the left part of the leading flank of rear push-rod (31) is provided with acclivitous helical teeth row from left to right and is called rear A helical rack, and the right part of the leading flank of rear push-rod (31) is provided with downward-sloping from left to right helical teeth row and is called rear B helical rack; Described helical teeth row refer to oblique teeth arranged in columns;
The described guide pad of loosing core (4) is the steel components of rectangular block shape, two through holes that guide pad (4) Central Symmetry of loosing core is provided with left and right directions and horizontal parallel are called A push rod guide hole, be provided with a through hole be tilted to the right from top to bottom between two described A push rod guide holes and be called oblique guide hole, inner the communicating in the inner hole with described oblique guide hole, the hole of described A push rod guide hole;
The steel components that described push rod guide pad (5) is rectangular block shape, push rod guide pad (5) is provided with corresponding two the identical through holes of two described A push rod guide holes of the guide pad of loosing core (4) and is called B push rod guide hole, the through hole that is provided with an above-below direction between two described B push rod guide holes is called straight guide hole, and the hole of described B push rod guide hole is inner to communicate with the inside, hole of described straight guide hole;
The described piece (6) that is fixedly connected with is for the steel components of rectangular block shape, is fixedly connected with piece (6) and is provided with corresponding two the identical through holes of two described A push rod guide holes of the guide pad of loosing core (4) and is called connecting hole;
The guide pad (4) of loosing core is positioned at the left of push rod guide pad (5), the trailing flank of front push rod (3) is parallel with the leading flank of rear push-rod (31) relatively respectively through described A push rod guide hole and described B push rod guide hole, and will loose core guide pad (4) and push rod guide pad (5) slide and be connected on front push rod (3) and rear push-rod (31); The described upper helical rack of piece (1) of tiltedly loosing core interts and slides and be connected with a joggle with described front A helical rack, rear A helical rack in the described oblique guide hole of the guide pad of loosing core (4), and the described lower helical rack of push rod (2) interts and is connected with a joggle with described front B helical rack, the slip of rear B helical rack the described straight guide hole of push rod guide pad (5) in; Being fixedly connected with piece (6) is fixedly connected with front push rod (3) by described connecting hole with the right-hand member of rear push-rod (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310406355.6A CN103448217B (en) | 2013-08-30 | 2013-08-30 | A kind of oblique core_pulling demoulding device of helical rack transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310406355.6A CN103448217B (en) | 2013-08-30 | 2013-08-30 | A kind of oblique core_pulling demoulding device of helical rack transmission |
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| Publication Number | Publication Date |
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| CN103448217A true CN103448217A (en) | 2013-12-18 |
| CN103448217B CN103448217B (en) | 2015-09-02 |
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|---|---|---|---|
| CN201310406355.6A Expired - Fee Related CN103448217B (en) | 2013-08-30 | 2013-08-30 | A kind of oblique core_pulling demoulding device of helical rack transmission |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2899010A1 (en) * | 2014-01-28 | 2015-07-29 | Comercial de Utiles y Moldes, S.A. | Device for demolding parts |
| CN107283910A (en) * | 2017-07-21 | 2017-10-24 | 中铁隆昌铁路器材有限公司 | A kind of composite brake shoe pickoff and release method |
| CN108670781A (en) * | 2018-04-28 | 2018-10-19 | 芜湖凯德机械制造有限公司 | A kind of micro fatigue crack device |
| CN108748904A (en) * | 2018-07-24 | 2018-11-06 | 宁波瑞元模塑有限公司 | Oiling wicket molds anti-drawing anticollision device, collision-prevention device |
| CN111264573A (en) * | 2020-03-25 | 2020-06-12 | 湖北卧龙神厨食品股份有限公司 | Branding machine |
| CN113689803A (en) * | 2020-05-19 | 2021-11-23 | 四川精创通信网络维护有限公司 | Electronic safety sign with lock catch |
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| US6238202B1 (en) * | 1999-02-26 | 2001-05-29 | Unique Mould Makers Limited | Apparatus for ejecting threaded injection molded parts |
| CN201371556Y (en) * | 2009-02-23 | 2009-12-30 | 福星塑胶模具(深圳)有限公司 | Injection mold slide core-pulling mechanism |
| CN203438501U (en) * | 2013-08-30 | 2014-02-19 | 宁波双林模具有限公司 | Inclined core-pulling demoulding device adopting inclined rack transmission |
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| JPS6359521A (en) * | 1986-08-29 | 1988-03-15 | Matsushita Electric Ind Co Ltd | Integral-molding tool of intermeshed gears and method thereof |
| DE19616008C1 (en) * | 1996-04-23 | 1997-06-19 | Siegfried Hofmann Gmbh Werkzeu | Gearing for linear lift movement of tool part, especially for ejection or replacement of ejector of injection moulding tool |
| US6238202B1 (en) * | 1999-02-26 | 2001-05-29 | Unique Mould Makers Limited | Apparatus for ejecting threaded injection molded parts |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2899010A1 (en) * | 2014-01-28 | 2015-07-29 | Comercial de Utiles y Moldes, S.A. | Device for demolding parts |
| ES2542024A1 (en) * | 2014-01-28 | 2015-07-29 | Comercial de Útiles y Moldes, S.A. | Device for unmolding parts (Machine-translation by Google Translate, not legally binding) |
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| CN107283910A (en) * | 2017-07-21 | 2017-10-24 | 中铁隆昌铁路器材有限公司 | A kind of composite brake shoe pickoff and release method |
| CN108670781A (en) * | 2018-04-28 | 2018-10-19 | 芜湖凯德机械制造有限公司 | A kind of micro fatigue crack device |
| CN108748904A (en) * | 2018-07-24 | 2018-11-06 | 宁波瑞元模塑有限公司 | Oiling wicket molds anti-drawing anticollision device, collision-prevention device |
| CN108748904B (en) * | 2018-07-24 | 2023-09-26 | 宁波瑞元模塑有限公司 | Anti-pulling anti-collision device for opening oil filling small door |
| CN111264573A (en) * | 2020-03-25 | 2020-06-12 | 湖北卧龙神厨食品股份有限公司 | Branding machine |
| CN113689803A (en) * | 2020-05-19 | 2021-11-23 | 四川精创通信网络维护有限公司 | Electronic safety sign with lock catch |
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| Publication number | Publication date |
|---|---|
| CN103448217B (en) | 2015-09-02 |
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