CN113400708B - Safety bolt assembly of closed press - Google Patents
Safety bolt assembly of closed press Download PDFInfo
- Publication number
- CN113400708B CN113400708B CN202110753957.3A CN202110753957A CN113400708B CN 113400708 B CN113400708 B CN 113400708B CN 202110753957 A CN202110753957 A CN 202110753957A CN 113400708 B CN113400708 B CN 113400708B
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- Prior art keywords
- assembly
- fixed shaft
- upper die
- lifting
- shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
- F16P1/00—Safety devices independent of the control and operation of any machine
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The invention relates to a safety plug assembly of a closed press, which comprises a base, wherein the base is connected with a cross beam through adjusting assemblies which are symmetrically arranged on two sides of the base and can ascend or descend; the stabilizing mechanisms are symmetrically arranged on the inner side and the outer side of the lifting assembly, and are unfolded or folded when the adjusting assembly ascends or descends, and are abutted against the upper die when the stabilizing mechanisms are unfolded; the locking assembly is arranged on the lifting assembly and used for locking the stabilizing mechanism in a state of abutting against the upper die, so that the upper die is lifted upwards to make room for maintainers in a maintenance state of the closed type press, and is fixed to prevent accidents in the maintenance process.
Description
Technical Field
The invention relates to the field of closed presses, in particular to a safety bolt assembly of a closed press.
Background
The closed press is mainly formed by combining four parts, namely an upper-pressing type four-upright-column oil press, a combined control cabinet, an electric heating system, a heat preservation device and a mould conveying rack. The device mainly utilizes a motor to drive a working mechanism through a transmission mechanism to apply technical force to a workpiece. The transmission mechanism is a belt transmission and gear transmission speed reducing mechanism; the working mechanism comprises a screw mechanism, a crank connecting rod mechanism and a hydraulic cylinder.
The safety bolt of the press machine is a supporting device which is placed between an upper die and a lower die or between the bottom surface of a sliding block of the press machine and a working table top and used for preventing the sliding block from falling down due to self weight, and is used for ensuring the personal safety of a technician when the die is replaced by the technician or the press machine stops and overhauls.
Disclosure of Invention
The present invention is directed to a safety plug assembly for a closed press that solves the problems set forth above in the background.
In order to achieve the purpose, the invention provides the following technical scheme:
a shut press safety pin assembly comprising:
the base is connected with a cross beam through adjusting components which are symmetrically arranged on two sides of the base and can ascend or descend, a press machine is fixedly arranged on the cross beam, and an upper die is assembled at the lower part of the press machine;
the stabilizing mechanisms are symmetrically arranged on the inner side and the outer side of the lifting assembly, and are unfolded or folded when the adjusting assembly ascends or descends, and are abutted against the upper die when the stabilizing mechanisms are unfolded;
and the locking assembly is arranged on the lifting assembly and used for locking the stabilizing mechanism in the state of abutting against the upper die.
As a further scheme of the invention: the adjusting assembly comprises a fixed shaft fixedly arranged on the base, a lifting shaft in sliding fit with the fixed shaft and an air cylinder fixedly arranged on the fixed shaft and used for driving the lifting shaft to ascend or descend;
the telescopic end of the cylinder is fixedly connected with the lifting shaft, and the fixed shaft is hollow.
As a still further scheme of the invention: stabilizing mean including install the dead axle with the meshing structure between the lift axle and with the meshing structure is connected and is rotated and install swing assembly on the dead axle, work as swing assembly moves to the horizontality, with go up the mould butt.
As a still further scheme of the invention: the meshing structure comprises a rack plate fixedly mounted on the lifting shaft and a gear which is meshed with the rack plate and is rotatably mounted on the fixed shaft and used for driving the swinging assembly to work;
through holes are formed in the inner side and the outer side of the fixed shaft, and the gear penetrates through the through holes to be meshed with the rack plate.
As a still further scheme of the invention: the swing subassembly include with gear connection and rotation are installed worm on the dead axle and with worm meshing and rotation are installed worm wheel on the dead axle and with the bearing structure that the worm wheel is connected.
As a still further scheme of the invention: the supporting structure comprises a rotary disc coaxially connected with the worm gear and a stabilizer bar fixedly arranged on the rotary disc;
the stabilizer bars symmetrically arranged on the inner side and the outer side of the fixed shaft are fixedly connected through a cross bar, and the cross bar is abutted to the upper die when the stabilizer bars are in a horizontal state.
As a still further scheme of the invention: the locking assembly comprises a lifting assembly arranged on the fixed shaft and a limiting structure connected with the lifting assembly and used for locking the stabilizer bar in a horizontal state.
As a still further scheme of the invention: the lifting assembly comprises a screw rod rotatably mounted on the fixed shaft and a threaded sleeve in threaded fit with the screw rod;
the lower part of the screw rod is fixedly provided with a hand wheel, and the threaded sleeve is fixedly connected with the limiting structure.
As a still further scheme of the invention: the limiting structure comprises a ratchet fixedly arranged at the lower part of the stabilizing rod, a sliding block fixedly connected with the threaded sleeve and in sliding fit with the surface of the fixed shaft, and a supporting rod matched with the ratchet and movably connected with the sliding block.
As a still further scheme of the invention: the supporting rod is elastically connected with the sliding block through a torsion spring, and a protrusion is fixedly arranged on the fixed shaft, so that the supporting rod is in a vertical state when the locking state is released.
Compared with the prior art, the invention has the beneficial effects that:
1. the adjusting assembly works to jack the press machine, so that a technician has a larger working space when replacing a die or overhauling the press machine, and simultaneously drives the stabilizing mechanism to work when the adjusting assembly jacks up the press machine;
2. when the stabilizing mechanism works, the stabilizing mechanism is unfolded outwards to abut against the upper die to carry the upper die, so that the upper die is prevented from falling off to threaten the personal safety of a technician when the press machine is overhauled;
3. after the stabilizing mean accepts last mould, lock stabilizing mean through the locking subassembly, prevent that stabilizing mean and last mould from taking place to break away from, increase the second floor protection subassembly on stabilizing mean's basis promptly, ensure the stability of going up the mould.
Drawings
FIG. 1 is a schematic diagram of an embodiment of a safety bolt assembly for a closed press.
Fig. 2 is an enlarged schematic view of the structure at a in fig. 1.
Fig. 3 is an enlarged schematic view of the structure at B in fig. 1.
FIG. 4 is a schematic illustration of the connection of the fixed shaft to the swing assembly in one embodiment of a safety plug assembly for a closed press.
FIG. 5 is a schematic diagram of the connection of the support bar, slide block and threaded sleeve in one embodiment of a safety plug assembly for a closed press.
In the figure: 1-a base; 2-fixing the shaft; 3-a lifting shaft; 4-a cylinder; 5-a cross beam; 6-a press machine; 7-upper mould; 8-rack plate; 9-gear; 10-a worm; 11-a worm gear; 12-a turntable; 13-a stabilizer bar; 14-a support bar; 15-bulge; 16-a screw rod; 17-a slide block; 18-a threaded sleeve; 19-torsion spring; 20-a hand wheel; 21-a ratchet; 22-cross bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, an element of the present invention may be said to be "fixed" or "disposed" to another element, either directly on the other element or with intervening elements present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1 to 5, in an embodiment of the present invention, a safety plug assembly of a closed press includes:
the base 1 is connected with a cross beam 5 through adjusting components which are symmetrically arranged on two sides of the base 1 and can ascend or descend, a press machine 6 is fixedly mounted on the cross beam 5, and an upper die 7 is assembled at the lower part of the press machine 6.
In the embodiment of the invention, the adjusting assembly works to jack up the press machine 6, so that a technician has larger working space when replacing a die or overhauling the die, and drives the stabilizing mechanism to work while the adjusting assembly jacks up the press machine 6.
The stabilizing mechanisms are symmetrically arranged on the inner side and the outer side of the lifting assembly, and are unfolded or folded when the adjusting assembly ascends or descends, and are abutted against the upper die 7 when the stabilizing mechanisms are unfolded.
In the embodiment of the invention, when the stabilizing mechanism works, the stabilizing mechanism is unfolded outwards to abut against the upper die 7 to support the upper die 7, so that the situation that the upper die 7 falls off to threaten the personal safety of a technician when the press machine 6 is overhauled is prevented;
wherein, go up between mould 7 and the part of stabilizing mean butt and the last mould 7 through screw bolt fixed connection for when going up mould 7 and stabilizing mean butt, go up mould 7 and still can be dismantled, conveniently change last mould 7.
And the locking assembly is arranged on the lifting assembly and used for locking the stabilizing mechanism in a state of abutting against the upper die 7.
In the embodiment of the invention, after the upper die 7 is received by the stabilizing mechanism, the stabilizing mechanism is locked by the locking assembly, so that the stabilizing mechanism is prevented from being separated from the upper die 7, namely, a second layer of protection assembly is added on the basis of the stabilizing mechanism, the stability of the upper die 7 is ensured, and the safety of the device is improved.
As an embodiment of the present invention, the adjusting assembly includes a fixed shaft 2 fixedly installed on the base 1, a lifting shaft 3 slidably sleeved with the fixed shaft 2, and a cylinder 4 fixedly installed on the fixed shaft 2 for driving the lifting shaft 3 to ascend or descend;
the telescopic end of the cylinder 4 is fixedly connected with the lifting shaft 3, and the fixed shaft 2 is hollow.
In the embodiment of the invention, when the telescopic end of the cylinder 4 moves upwards in use, the lifting shaft 3 is driven to move upwards, so that the lifting shaft 3 is lifted upwards relative to the fixed shaft 2, and the cross beam 5 is driven to move upwards, so that the press machine 6 and an upper die 7 arranged at the lower part of the press machine 6 are lifted upwards, and a larger working space is provided for a technician to replace dies or overhaul;
it should be noted that, the air cylinder 4 may also be replaced by a hydraulic cylinder or an electric telescopic rod, which is not specifically limited in this application and may be selected according to actual requirements.
As an embodiment of the present invention, the stabilizing mechanism includes a meshing structure installed between the fixed shaft 2 and the lifting shaft 3, and a swing assembly connected to the meshing structure and rotatably installed on the fixed shaft 2, and abuts against the upper mold 7 when the swing assembly moves to a horizontal state.
In the embodiment of the invention, when the adjusting assembly drives the press 6 to move upwards, the swinging assembly is driven to unfold to a horizontal state through the teeth and the structure and is abutted against the upper die 7 so as to achieve the purpose of stably supporting the upper die 7, and the traditional safety bolt is replaced without manually moving the safety bolt.
As an embodiment of the present invention, the engaging structure comprises a rack plate 8 fixedly mounted on the lifting shaft 3 and a gear 9 engaged with the rack plate 8 and rotatably mounted on the fixed shaft 2 for driving the oscillating assembly to work;
through holes are formed in the inner side and the outer side of the fixed shaft 2, and the gear 9 penetrates through the through holes to be meshed with the rack plate 8.
In the embodiment of the invention, when the lifting shaft 3 is lifted or lowered relative to the fixed shaft 2 in use, the rack plate 8 is driven to be lifted or lowered, so that the gear 9 which is meshed with the rack plate 8 through the through hole is rotated to drive the swinging assembly connected with the gear 9 to work to be abutted with the upper die 7.
As an embodiment of the present invention, the swing assembly includes a worm 10 connected with the gear 9 and rotatably mounted on the fixed shaft 2, a worm wheel 11 engaged with the worm 10 and rotatably mounted on the fixed shaft 2, and a supporting structure connected with the worm wheel 11.
In the embodiment of the invention, when the gear 9 rotates to drive the worm 10 to rotate, the worm wheel 11 meshed with the worm 10 is rotated, so that the supporting structure is driven to be unfolded, and when the lifting shaft 3 is lifted to the maximum height, the supporting structure is just abutted to the upper die 7;
it should be noted that, by providing the worm 10 and the worm wheel 11, a one-way locking function is realized, that is, when the worm 10 rotates, the worm wheel 11 can be driven to rotate, and when the worm wheel 11 rotates, the worm 10 cannot be driven to rotate.
As an embodiment of the present invention, the supporting structure includes a rotating disc 12 coaxially connected to the worm wheel 11 and a stabilizer bar 13 fixedly mounted on the rotating disc 12;
the stabilizer bars 13 symmetrically arranged on the inner side and the outer side of the fixed shaft 2 are fixedly connected through a cross bar 22, and the cross bar 22 is abutted against the upper die 7 when the stabilizer bars 13 are in a horizontal state.
In the embodiment of the invention, when the worm wheel 11 rotates, the rotary disc 12 is driven to rotate, so that the stabilizer bar 13 fixed with the rotary disc 12 rotates, the two stabilizer bars 13 are connected through the cross bar 22, the cross bar 22 rotates along with the stabilizer bar 13 and is abutted against the upper die 7, the upper die 7 is supported, and when the lifting shaft 3 rises to the maximum height relative to the fixed shaft 2, the stabilizer bar 13 is just in a horizontal state, and the stabilizer bar 13 is locked by the locking assembly, so that the stabilizer bar 13 is prevented from being separated from the upper die 7.
As an embodiment of the present invention, the locking assembly includes a lifting assembly mounted on the fixed shaft 2 and a limiting structure connected to the lifting assembly for locking the stabilizer bar 13 in a horizontal state.
In the embodiment of the invention, when the fixing device is used, the lifting assembly drives the limiting structure to ascend to a certain position, at the moment, the limiting structure is pulled to the clamping angle, the lifting assembly continuously ascends to be abutted against the stabilizer bar 13, and at the moment, under the action of the lifting assembly and the limiting structure, the abutting state of the stabilizer bar 13 and the upper die 7 is locked.
As an embodiment of the present invention, the lifting assembly includes a screw 16 rotatably mounted on the fixed shaft 2 and a threaded sleeve 18 in threaded engagement with the screw 16;
a hand wheel 20 is fixedly mounted at the lower part of the screw rod 16, and the threaded sleeve 18 is fixedly connected with the limiting structure.
In the embodiment of the invention, when in use, the screw rod 16 connected with the hand wheel 20 is rotated by rotating the hand wheel 20, so that the threaded sleeve 18 in threaded fit with the screw rod 16 ascends or descends in the axial direction of the screw rod 16, and the stabilizing rod 13 is kept in a stable state by manually pulling the limiting structure in the ascending process;
the screw rod 16 and the threaded sleeve 18 are in a one-way transmission relationship, namely the screw rod 16 can drive the threaded sleeve 18 to rotate, and the threaded sleeve 18 cannot drive the screw rod 16 to rotate, so that the limiting assembly cannot yield in a locking state.
As an embodiment of the present invention, the limiting structure includes a ratchet 21 fixedly installed at a lower portion of the stabilizing rod 13, a sliding block 17 fixedly connected to the threaded sleeve 18 and slidably attached to a surface of the fixed shaft 2, and a supporting rod 14 adapted to the ratchet 21 and movably connected to the sliding block 17.
In the embodiment of the invention, when the device is used, the support rod 14 is pulled to an angle of clamping with the ratchet 21, the hand wheel 20 is rotated to drive the screw rod 16 to rotate, so that the threaded sleeve 18 in threaded fit with the screw rod 16 moves upwards in the axial direction of the screw rod 16 until the support rod 14 is clamped with the ratchet 21, and the stabilizer bar 13 is propped against by the support rod 14 at the moment, thereby preventing accidents in the process of replacing a mold or overhauling and avoiding the accidents to the maximum extent;
it is noted that the sliding block 17 is movably engaged with the outer surface of the fixed shaft 2 for preventing the threaded sleeve 18 from rotating following the screw 16.
As an embodiment of the invention, the support rod 14 is elastically connected with the sliding block 17 through a torsion spring 19, and a projection 15 is fixedly arranged on the fixed shaft 2, so that the support rod 14 is in a vertical state when the locking state is released.
In the embodiment of the invention, when the locking of the stabilizer bar 13 needs to be released, the hand wheel 20 is rotated reversely to rotate the screw rod 16 reversely, so that the threaded sleeve 18 is driven to move downwards, the support rod 14 is separated from the ratchet 21, the press 6 can be driven to descend through the adjusting assembly, the stabilizing assembly is folded in the descending process, the bearing effect on the upper die 7 is released, and the support rod 14 is abutted against the protrusion 15 under the action of the torsion spring 19 in the process of continuously rotating the hand wheel 20 reversely to store the support rod 14.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (4)
1. A blind press safety plug assembly, comprising:
the device comprises a base (1), wherein the base (1) is connected with a cross beam (5) through adjusting components which are symmetrically arranged on two sides of the base (1) and can ascend or descend, a press machine (6) is fixedly arranged on the cross beam (5), and an upper die (7) is assembled at the lower part of the press machine (6);
the stabilizing mechanisms are symmetrically arranged on the inner side and the outer side of the lifting assembly, and are unfolded or folded when the adjusting assembly ascends or descends, and are abutted against the upper die (7) when the stabilizing mechanisms are unfolded;
the locking assembly is mounted on the lifting assembly and used for locking the stabilizing mechanism in a state of abutting against the upper die (7);
when the stabilizing mechanism works, the stabilizing mechanism is unfolded outwards to be abutted against the upper die 7 to carry the upper die 7;
the adjusting assembly comprises a fixed shaft (2) fixedly mounted on the base (1), a lifting shaft (3) in sliding fit with the fixed shaft (2) and a cylinder (4) fixedly mounted on the fixed shaft (2) and used for driving the lifting shaft (3) to ascend or descend;
the telescopic end of the cylinder (4) is fixedly connected with the lifting shaft (3), and the fixed shaft (2) is hollow;
the stabilizing mechanism comprises a meshing structure arranged between the fixed shaft (2) and the lifting shaft (3) and a swinging assembly which is connected with the meshing structure and is rotatably arranged on the fixed shaft (2), and when the swinging assembly moves to a horizontal state, the swinging assembly is abutted to the upper die (7);
when the adjusting component drives the press (6) to move upwards, the swinging component is driven to be unfolded to a horizontal state through the meshing structure and is abutted against the upper die (7);
the meshing structure comprises a rack plate (8) fixedly mounted on the lifting shaft (3) and a gear (9) which is meshed with the rack plate (8) and rotatably mounted on the fixed shaft (2) and used for driving the swinging assembly to work;
through holes are formed in the inner side and the outer side of the fixed shaft (2), and the gear (9) penetrates through the through holes to be meshed with the rack plate (8);
when the lifting shaft (3) rises or falls relative to the fixed shaft (2), the rack plate (8) is driven to rise or fall, so that the gear (9) which penetrates through the through hole and is meshed with the rack plate (8) rotates, and the swinging assembly connected with the gear (9) is driven to work until the swinging assembly is abutted against the upper die (7);
the swinging assembly comprises a worm (10) connected with the gear (9) and rotatably mounted on the fixed shaft (2), a worm wheel (11) meshed with the worm (10) and rotatably mounted on the fixed shaft (2), and a bearing structure connected with the worm wheel (11);
when the gear (9) rotates to drive the worm (10) to rotate, the worm wheel (11) meshed with the worm (10) is enabled to rotate, so that the supporting structure is driven to be unfolded, and when the lifting shaft (3) rises to the maximum height, the supporting structure is just abutted to the upper die (7);
the bearing structure comprises a rotary disc (12) coaxially connected with the worm wheel (11) and a stabilizer bar (13) fixedly arranged on the rotary disc (12);
the stabilizer bars (13) symmetrically arranged on the inner side and the outer side of the fixed shaft (2) are fixedly connected through a cross bar (22), and the cross bar (22) is abutted against the upper die (7) when the stabilizer bars (13) are in a horizontal state;
when the worm wheel (11) rotates, the rotary table (12) is driven to rotate, so that the stabilizer bar (13) fixed with the rotary table (12) rotates, and meanwhile, the two stabilizer bars (13) are connected through the cross bar (22), so that the cross bar (22) rotates along with the stabilizer bar (13) and is abutted against the upper die (7);
the locking assembly comprises a lifting assembly arranged on the fixed shaft (2) and a limiting structure connected with the lifting assembly and used for locking the stabilizer bar (13) in a horizontal state.
2. A safety bolt assembly for a blind press according to claim 1, characterised in that the lifting assembly comprises a screw (16) rotatably mounted on the fixed shaft (2) and a threaded sleeve (18) in threaded engagement with the screw (16);
the lower part of the screw rod (16) is fixedly provided with a hand wheel (20), and the threaded sleeve (18) is fixedly connected with the limiting structure.
3. A safety bolt assembly for a closed press according to claim 2, characterized in that the limiting structure comprises a ratchet (21) fixedly installed at the lower part of the stabilizing rod (13), a sliding block (17) fixedly connected with the threaded sleeve (18) and in sliding fit with the surface of the fixed shaft (2), and a supporting rod (14) adapted to the ratchet (21) and movably connected with the sliding block (17).
4. A safety bolt assembly for a blind press according to claim 1, characterised in that the support bar (14) is resiliently connected to the slide (17) by a torsion spring (19) and a projection (15) is fixedly mounted on the fixed shaft (2) to hold the support bar (14) in an upright position when the locking is released.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110753957.3A CN113400708B (en) | 2021-07-03 | 2021-07-03 | Safety bolt assembly of closed press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110753957.3A CN113400708B (en) | 2021-07-03 | 2021-07-03 | Safety bolt assembly of closed press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113400708A CN113400708A (en) | 2021-09-17 |
| CN113400708B true CN113400708B (en) | 2022-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110753957.3A Active CN113400708B (en) | 2021-07-03 | 2021-07-03 | Safety bolt assembly of closed press |
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| CN (1) | CN113400708B (en) |
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| CN105643354A (en) * | 2014-11-10 | 2016-06-08 | 扬州锻压机床股份有限公司 | Sliding block downward motion preventing security device of machine tool |
| CN206953649U (en) * | 2017-05-18 | 2018-02-02 | 大连诚技机电设备有限公司 | Press slide block locking device |
| CN107803809A (en) * | 2017-11-14 | 2018-03-16 | 佛山杰致信息科技有限公司 | A kind of portable physical apparatus storage box |
| CN108000932A (en) * | 2017-12-09 | 2018-05-08 | 柳州通亿汽车配件制造有限公司 | A kind of hydraulic press safety cock |
| CN209173853U (en) * | 2018-03-29 | 2019-07-30 | 成都利家建材有限公司 | A kind of electronic security(ELSEC) bolt increasing mineral varnish agitating device applied to horizontal hydraulic |
| CN209245681U (en) * | 2018-12-25 | 2019-08-13 | 广州荣安消防设备有限公司 | A kind of mobile collapsing protective stent of fire-fighting |
| CN109681761A (en) * | 2018-12-26 | 2019-04-26 | 济南二机床集团有限公司 | A kind of press machine automatic safety bolt |
| CN209524312U (en) * | 2019-01-14 | 2019-10-22 | 苏州胜铭龙油压设备有限公司 | A kind of hydraulic press safety device |
| CN210967135U (en) * | 2019-07-31 | 2020-07-10 | 江西乔扬数控设备有限公司 | Power head lifting mechanism of gantry movable type numerical control milling machine |
| CN211416428U (en) * | 2019-11-05 | 2020-09-04 | 元源新材料有限公司 | Anti-falling device for press slide block |
| CN111409011A (en) * | 2020-05-11 | 2020-07-14 | 安徽兴安电气设备股份有限公司 | Stationary flow jar polishing auxiliary device |
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