CN112692129A - Rib pressing device for cylindrical thin-wall part - Google Patents
Rib pressing device for cylindrical thin-wall part Download PDFInfo
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- CN112692129A CN112692129A CN202011323866.8A CN202011323866A CN112692129A CN 112692129 A CN112692129 A CN 112692129A CN 202011323866 A CN202011323866 A CN 202011323866A CN 112692129 A CN112692129 A CN 112692129A
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- rib pressing
- pushing
- cylindrical thin
- wall part
- rod
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- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 238000013016 damping Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 description 3
- 210000003205 muscle Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
- B21D13/02—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D55/00—Safety devices protecting the machine or the operator, specially adapted for apparatus or machines dealt with in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finger-Pressure Massage (AREA)
Abstract
The invention discloses a rib pressing device for a cylindrical thin-wall part, which comprises a base; a rib pressing shell is fixed on the base, and a cylindrical part placing groove for placing a cylindrical thin-wall part is formed in the rib pressing shell; a plurality of rib pressing grooves which are convenient for rib pressing of the cylindrical thin-wall part are symmetrically arranged on the rib pressing shell positioned on the outer side of the cylindrical part placing groove; the pushing grooves correspond to the rib pressing grooves one by one, and the pushing grooves positioned on the inner side of the cylindrical part placing grooves are arranged on the rib pressing shell; a rib pressing plate for pressing ribs on the cylindrical thin-wall part is arranged in the push groove in a sliding manner; the pushing mechanism for pushing the rib pressing plates to move outwards is arranged in the rib pressing shell. The rib pressing device for the cylindrical thin-wall parts is provided with the rib pressing shell and the pushing mechanism, so that rib pressing can be conveniently carried out on the cylindrical thin-wall parts, and the structure of the cylindrical thin-wall parts cannot be damaged; through setting up the mechanism of reducing pressure, can prevent that the gusset from giving the too big thrust with cylindric thin wall part in the twinkling of an eye, lead to cylindric thin wall part structure to be damaged.
Description
Technical Field
The invention relates to a rib pressing device, in particular to a rib pressing device for a cylindrical thin-wall part.
Background
The rib pressing refers to pressing a rib on the metal sheet, namely attaching a channel steel on the metal sheet, so that the rigidity of the metal sheet can be improved. The existing rib pressing equipment presses ribs through stamping, when the cylindrical thin-wall parts are pressed by stamping, the structure of the cylindrical thin-wall parts is easily damaged, so that waste materials are generated, and when manual rib pressing is carried out manually, the efficiency is low, and workers are easily injured. In order to facilitate the ribbing of the cylindrical thin-wall part and improve the rigidity of the cylindrical thin-wall part, a ribbing device for the cylindrical thin-wall part needs to be designed to meet the requirement.
Disclosure of Invention
The invention aims to provide a rib pressing device for a cylindrical thin-wall part, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a rib pressing device for a cylindrical thin-wall part comprises a base; a rib pressing shell is fixed on the base, and a cylindrical part placing groove for placing a cylindrical thin-wall part is formed in the rib pressing shell; a plurality of rib pressing grooves which are convenient for rib pressing of the cylindrical thin-wall part are symmetrically arranged on the rib pressing shell positioned on the outer side of the cylindrical part placing groove; the pushing grooves correspond to the rib pressing grooves one by one, and the pushing grooves positioned on the inner side of the cylindrical part placing grooves are formed in the rib pressing shell; a rib pressing plate for pressing ribs of the cylindrical thin-wall part is arranged in the pushing groove in a sliding mode; and the pushing mechanism for pushing the rib pressing plates to move outwards is arranged in the rib pressing shell.
As a further scheme of the invention: the pushing mechanism comprises a rotating shaft, a sleeve, a pushing rod and a pushing plate; a cavity is formed in the base, and a rotating shaft is rotatably arranged in the cavity; the upper end of the rotating shaft penetrates through the top wall of the base in a rotating mode and is arranged in a rotating shaft groove of the beading shell in a rotating mode; threaded chutes are symmetrically arranged on the rotating shaft in the rotating shaft groove, and sleeves are respectively in threaded fit with the two threaded chutes; the outer side of the sleeve is hinged with one end of each of the plurality of push rods, and the' 35764Beta push rods correspond to the plurality of push grooves one by one; one side of each of the two sleeves is hinged with one end of each of the two push rods, and the other ends of the two push rods are hinged in the push plate; the pushing plate is arranged in the pushing groove in a sliding mode, and a rib pressing plate is arranged on the outer side of the pushing plate; the driving mechanism for driving the rotating shaft to rotate is arranged in the base.
As a still further scheme of the invention: a pressure reducing mechanism is arranged between the pushing plate and the rib pressing plate; the pressure reducing mechanism comprises a ribbing push rod, a sliding block and a ribbing spring; the inner side of the rib pressing plate is provided with sliding chutes in an up-and-down symmetrical manner, and sliding blocks are respectively arranged in the two sliding chutes in a sliding manner; the sliding block is connected with the outer side of the sliding groove through a rib pressing spring; the two sliding blocks are respectively hinged with one end of each rib pressing push rod; the other ends of the two ribbing push rods are hinged on the push plate.
As a still further scheme of the invention: a plurality of limiting rod structures are arranged between the pushing plate and the rib pressing plate; the limiting rod structure comprises an outer limiting rod and an inner limiting rod; one end of the inner limiting rod is fixed on the pushing plate, and the other end of the inner limiting rod is arranged in the outer limiting rod in a sliding mode; the outer limiting rod is fixed on the rib pressing plate.
As a still further scheme of the invention: the rib pressing shells are multiple and are arranged on the base at equal intervals; and a plurality of rib pressing shells are internally provided with pushing mechanisms.
As a still further scheme of the invention: the driving mechanism comprises a driven gear, a driving motor and a driving gear; a driving motor is fixed in the cavity of the base, and a driving gear is fixed at the rotating end of the driving motor; the number of teeth of the driving gear is less than that of the driven gear, and the driven gear is fixed on the rotating shaft; the driving gear is meshed with the single driven gear, and two adjacent driven gears are meshed with each other.
As a still further scheme of the invention: a plurality of wheel mechanisms which are convenient to move are symmetrically distributed at the bottom of the base; the wheel mechanism comprises an outer rod, an inner rod, a damping spring and wheels; an outer rod is fixed at the bottom of the base, and an inner rod is arranged in the outer rod in a sliding manner; the inner rod is connected with the outer rod through a damping spring, and the bottom of the inner rod is rotatably provided with wheels.
Compared with the prior art, the invention has the beneficial effects that: by arranging the rib pressing shell and the pushing mechanism, rib pressing can be conveniently carried out on the cylindrical thin-wall part, and the structure of the cylindrical thin-wall part cannot be damaged; through setting up the mechanism of reducing pressure, can prevent that the gusset from giving the too big thrust with cylindric thin wall part in the twinkling of an eye, lead to cylindric thin wall part structure to be damaged.
Drawings
FIG. 1 is a schematic structural view of a beading apparatus for a cylindrical thin-walled part in example 1.
Fig. 2 is a schematic structural view of a pushing mechanism of the beading device for a cylindrical thin-walled part in embodiment 1.
FIG. 3 is a schematic structural view of a beading apparatus for a cylindrical thin-walled part according to embodiment 2.
In the figure: 1. a base; 2. pressing a rib shell; 3. a rotating shaft groove; 4. a cylindrical part placing groove; 5. a push groove; 6. pressing rib grooves; 7. a rotating shaft; 8. a sleeve; 9. a push rod; 10. a push plate; 11. pressing a rib plate; 12. pressing a rib push rod; 13. a slider; 14. a rib pressing spring; 15. an outer limiting rod; 16. an inner limiting rod; 17. a driven gear; 18. a drive motor; 19. a driving gear; 20. an outer rod; 21. an inner rod; 22. a damping spring; 23. and (4) wheels.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to specific embodiments.
Example 1
Referring to fig. 1-2, the present embodiment provides a rib pressing device for a cylindrical thin-walled component, which includes a base 1; a rib pressing shell 2 is fixed on the base 1, and a cylindrical part placing groove 4 for placing a cylindrical thin-wall part is formed in the rib pressing shell 2; a plurality of rib pressing grooves 6 which are convenient for rib pressing of the cylindrical thin-wall part are symmetrically arranged on the rib pressing shell 2 positioned on the outer side of the cylindrical part placing groove 4; the pushing grooves 5 which correspond to the rib pressing grooves 6 one by one and are positioned at the inner side of the cylindrical part placing groove 4 are arranged on the rib pressing shell 2; a rib pressing plate 11 for pressing ribs of the cylindrical thin-wall part is arranged in the pushing groove 5 in a sliding mode; the pushing mechanism for pushing the rib pressing plates 11 to move outwards is arranged in the rib pressing shell 2. Set up like this, after placing cylindric thin wall part in cylindric part standing groove 4, pushing mechanism begins to work to promote a plurality of pressure gusset 11 outwards movements, and with the inner wall contact of cylindric thin wall part, pushing mechanism promotes a plurality of pressure gusset 11 and continues outwards movement this moment, thereby promotes the lateral wall and the contact of pressure muscle groove 6 of cylindric thin wall part, thereby can realize the pressure muscle effect.
Further, the pushing mechanism comprises a rotating shaft 7, a sleeve 8, a pushing rod 9 and a pushing plate 10; a cavity is arranged in the base 1, and a rotating shaft 7 is rotatably arranged in the cavity; the upper end of the rotating shaft 7 penetrates through the top wall of the base 1 in a rotating mode and is arranged in the rotating shaft groove 3 of the beading shell 2 in a rotating mode; threaded chutes are symmetrically arranged on the rotating shaft 7 positioned in the rotating shaft groove 3, and sleeves 8 are respectively in threaded fit on the two threaded chutes; the outer side of the sleeve 8 is hinged with one end of each of the push rods 9, and the '35764Beta' push rods 9 correspond to the push grooves 5 one by one; one side of each of the two sleeves 8 is hinged with one end of each of the two push rods 9, and the other end of each of the two push rods 9 is hinged in the push plate 10; the pushing plate 10 is arranged in the pushing groove 5 in a sliding mode, and a rib pressing plate 11 is arranged on the outer side of the pushing plate 10; the driving mechanism for driving the rotating shaft 7 to rotate is arranged in the base 1; set up like this, when actuating mechanism drives pivot 7 and rotates, because on two screw thread chutes respectively screw-thread fit have sleeve 8 to two sleeves 8 are close to each other, thereby promote a plurality of catch bars 9 and outwards swing, thereby promote a plurality of catch plates 10 outwards motion, thereby promote a plurality of pressure muscle board 11 outwards motion.
Further, in order to prevent the pressure reducing plate 11 from instantaneously providing excessive thrust with the cylindrical thin-wall part to damage the structure of the cylindrical thin-wall part, a pressure reducing mechanism is arranged between the pushing plate 10 and the pressure reducing plate 11; the pressure reducing mechanism comprises a ribbing push rod 12, a sliding block 13 and a ribbing spring 14; the inner side of the rib pressing plate 11 is provided with sliding chutes in an up-down symmetrical manner, and sliding blocks 13 are respectively arranged in the two sliding chutes in a sliding manner; the sliding block 13 is connected with the outer side of the sliding chute through a rib pressing spring 14; the two sliding blocks 13 are respectively hinged with one ends of the two ribbing push rods 12; the other ends of the two ribbing push rods 12 are hinged on the push plate 10; with the arrangement, when the pushing plate 10 pushes the rib pressing plate 11 to contact with the inner wall of the cylindrical thin-wall part, the two rib pressing push rods 12 swing outwards to push the two sliders 13 to be away from each other, and the two rib pressing springs 14 are compressed, so that the thrust borne by the cylindrical thin-wall part can be gradually increased, and the rib pressing plate 11 is prevented from instantaneously providing excessive thrust to the cylindrical thin-wall part, and the structure of the cylindrical thin-wall part is prevented from being damaged.
Furthermore, in order to make the rib pressing plate 11 more stable in the movement process, a plurality of limiting rod structures are arranged between the pushing plate 10 and the rib pressing plate 11; the limiting rod structure comprises an outer limiting rod 15 and an inner limiting rod 16; one end of the inner limiting rod 16 is fixed on the pushing plate 10, and the other end of the inner limiting rod 16 is arranged in the outer limiting rod 15 in a sliding manner; the outer limiting rod 15 is fixed on the rib pressing plate 11; by the arrangement, the push plate 10 and the rib pressing plate 11 can be more stable in the movement process through the matching of the outer limiting rods 15 and the inner limiting rods 16.
Furthermore, in order to improve the rib pressing efficiency, a plurality of rib pressing shells 2 are arranged on the base 1 at equal intervals; and a plurality of rib pressing shells 2 are internally provided with pushing mechanisms.
Further, the driving mechanism comprises a driven gear 17, a driving motor 18 and a driving gear 19; a driving motor 18 is fixed in the cavity of the base 1, and a driving gear 19 is fixed at the rotating end of the driving motor 18; the number of teeth of the driving gear 19 is less than that of the driven gear 17, and the driven gear 17 is fixed on the rotating shaft 7; the driving gear 19 is meshed with a single driven gear 17, and two adjacent driven gears 17 are meshed with each other; so arranged, when the driving motor 18 is working, the driving gear 19 is driven to rotate, thereby the driven gear 17 is driven to rotate, and the rotating shaft 7 is driven to rotate.
The working principle of the embodiment is as follows: after the cylindrical thin-wall part is placed in the cylindrical part placing groove 4, the pushing mechanism starts to work, so that the plurality of rib pressing plates 11 are pushed to move outwards and contact with the inner wall of the cylindrical thin-wall part, the pushing mechanism pushes the plurality of rib pressing plates 11 to continue to move outwards, the side wall of the cylindrical thin-wall part is pushed to contact with the rib pressing groove 6, and the rib pressing effect can be achieved.
Wherein, pushing mechanism's theory of operation is, drives driving gear 19 when driving motor 18 during operation and rotates to drive driven gear 17 and rotate, thereby drive pivot 7 and rotate, because on two screw thread chutes respectively screw-thread fit have sleeve 8, thereby two sleeves 8 are close to each other, thereby promote a plurality of catch bars 9 and outwards swing, thereby promote a plurality of slurcam 10 outwards movements, thereby promote a plurality of deep crush board 11 outwards movements.
When the pushing plate 10 pushes the rib pressing plate 11 to contact with the inner wall of the cylindrical thin-wall part, the two rib pressing push rods 12 swing outwards to push the two sliders 13 to be away from each other, the two rib pressing springs 14 are compressed, and therefore the thrust borne by the cylindrical thin-wall part can be gradually increased, so that the rib pressing plate 11 is prevented from instantaneously giving excessive thrust to the cylindrical thin-wall part, and the structure of the cylindrical thin-wall part is prevented from being damaged.
Example 2
Referring to fig. 3, the embodiment is further improved on the basis of embodiment 1, and the improvement is as follows: in order to facilitate moving equipment, a plurality of wheel mechanisms which are convenient to move are symmetrically distributed at the bottom of the base 1; the wheel mechanism comprises an outer rod 20, an inner rod 21, a damping spring 22 and a wheel 23; an outer rod 20 is fixed at the bottom of the base 1, and an inner rod 21 is arranged in the outer rod 20 in a sliding manner; the inner rod 21 is connected with the outer rod 20 through a damping spring 22, and a wheel 23 is rotatably arranged at the bottom of the inner rod 21.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (7)
1. A rib pressing device for a cylindrical thin-wall part is characterized by comprising a base (1); a rib pressing shell (2) is fixed on the base (1), and a cylindrical part placing groove (4) for placing a cylindrical thin-wall part is formed in the rib pressing shell (2); a plurality of rib pressing grooves (6) which are convenient for rib pressing of the cylindrical thin-wall part are symmetrically arranged on the rib pressing shell (2) which is positioned on the outer side of the cylindrical part placing groove (4); the pushing grooves (5) correspond to the rib pressing grooves (6) one by one, and are positioned on the inner side of the cylindrical part placing groove (4) and arranged on the rib pressing shell (2); a rib pressing plate (11) used for pressing ribs of the cylindrical thin-wall part is arranged in the pushing groove (5) in a sliding mode; the pushing mechanism for pushing the rib pressing plates (11) to move outwards is arranged in the rib pressing shell (2).
2. The beading device for cylindrical thin-walled parts according to claim 1, wherein the pushing mechanism comprises a rotating shaft (7), a sleeve (8), a pushing rod (9) and a pushing plate (10); a cavity is arranged in the base (1), and a rotating shaft (7) is rotatably arranged in the cavity; the upper end of the rotating shaft (7) penetrates through the top wall of the base (1) in a rotating mode and is arranged in a rotating shaft groove (3) of the beading shell (2) in a rotating mode; threaded chutes are symmetrically arranged on the rotating shaft (7) positioned in the rotating shaft groove (3), and sleeves (8) are respectively in threaded fit with the two threaded chutes; the outer side of the sleeve (8) is hinged with one end of each of a plurality of pushing rods (9), and the pushing rods (9) of the song are in one-to-one correspondence with the pushing grooves (5); one side of each of the two sleeves (8) is hinged with one end of each of the two push rods (9), and the other end of each of the two push rods (9) is hinged in the push plate (10); the pushing plate (10) is arranged in the pushing groove (5) in a sliding mode, and a rib pressing plate (11) is arranged on the outer side of the pushing plate (10); the driving mechanism for driving the rotating shaft (7) to rotate is arranged in the base (1).
3. The ribbing device for the cylindrical thin-walled part according to claim 2, wherein a pressure reducing mechanism is arranged between the pushing plate (10) and the rib pressing plate (11); the pressure reducing mechanism comprises a ribbing push rod (12), a sliding block (13) and a ribbing spring (14); sliding grooves are symmetrically formed in the upper side and the lower side of the inner side of the rib pressing plate (11), and sliding blocks (13) are respectively arranged in the two sliding grooves in a sliding mode; the sliding block (13) is connected with the outer side of the sliding groove through a rib pressing spring (14); the two sliding blocks (13) are respectively hinged with one ends of the two ribbing push rods (12); the other ends of the two ribbing push rods (12) are hinged on the push plate (10).
4. The cylindrical thin-wall part beading device according to claim 3, wherein a plurality of limiting rod structures are arranged between the pushing plate (10) and the beading plate (11); the limiting rod structure comprises an outer limiting rod (15) and an inner limiting rod (16); one end of the inner limiting rod (16) is fixed on the pushing plate (10), and the other end of the inner limiting rod (16) is arranged in the outer limiting rod (15) in a sliding manner; the outer limiting rod (15) is fixed on the rib pressing plate (11).
5. The cylindrical thin-walled part beading device according to claim 1, wherein the beading shell (2) is provided in a plurality and arranged on the base (1) at equal intervals; and pushing mechanisms are arranged in the rib pressing shells (2).
6. The cylindrical thin-walled part beading device according to claim 2, wherein the driving mechanism comprises a driven gear (17), a driving motor (18) and a driving gear (19); a driving motor (18) is fixed in a cavity of the base (1), and a driving gear (19) is fixed at the rotating end of the driving motor (18); the number of teeth of the driving gear (19) is less than that of the driven gear (17), and the driven gear (17) is fixed on the rotating shaft (7); the driving gear (19) is meshed with a single driven gear (17), and two adjacent driven gears (17) are meshed with each other.
7. The cylindrical thin-wall part beading device according to claim 6, wherein a plurality of wheel mechanisms which are convenient to move are symmetrically distributed at the bottom of the base (1); the wheel mechanism comprises an outer rod (20), an inner rod (21), a damping spring (22) and a wheel (23); an outer rod (20) is fixed at the bottom of the base (1), and an inner rod (21) is arranged in the outer rod (20) in a sliding manner; the inner rod (21) is connected with the outer rod (20) through a damping spring (22), and the bottom of the inner rod (21) is rotatably provided with a wheel (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011323866.8A CN112692129A (en) | 2020-11-23 | 2020-11-23 | Rib pressing device for cylindrical thin-wall part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011323866.8A CN112692129A (en) | 2020-11-23 | 2020-11-23 | Rib pressing device for cylindrical thin-wall part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112692129A true CN112692129A (en) | 2021-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011323866.8A Pending CN112692129A (en) | 2020-11-23 | 2020-11-23 | Rib pressing device for cylindrical thin-wall part |
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| Country | Link |
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| CN (1) | CN112692129A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0427542A2 (en) * | 1989-11-07 | 1991-05-15 | Woodbridge Industries Limited | Ribbed and grooved tube forming |
| JP2005040821A (en) * | 2003-07-22 | 2005-02-17 | Sango Co Ltd | Beading method |
| CN103316989A (en) * | 2012-03-23 | 2013-09-25 | 新疆特变电工集团有限公司 | Numerically-controlled thread punching and shearing equipment for silicon steel sheet |
| CN203992123U (en) * | 2014-07-16 | 2014-12-10 | 中国核工业华兴建设有限公司 | A kind of welding Thin-wall Barrel bulging tendons device |
| WO2017135621A2 (en) * | 2016-02-02 | 2017-08-10 | 김성식 | Metal pipe having inner protective tube and manufacturing method therefor |
| CN206716829U (en) * | 2017-04-20 | 2017-12-08 | 徐州市特种锻压机床厂 | Bulging device for annular workpieces |
| CN208325290U (en) * | 2018-04-02 | 2019-01-04 | 深圳市克伦特印刷设备有限公司 | A kind of printing plate developing machine automatic carriage |
| CN211619479U (en) * | 2020-02-22 | 2020-10-02 | 罗增义 | Convenient blowing machine of reloading supports pivot mounting structure |
| CN211619837U (en) * | 2020-01-15 | 2020-10-02 | 河北建设集团股份有限公司 | Brick lifting device for building construction |
-
2020
- 2020-11-23 CN CN202011323866.8A patent/CN112692129A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0427542A2 (en) * | 1989-11-07 | 1991-05-15 | Woodbridge Industries Limited | Ribbed and grooved tube forming |
| JP2005040821A (en) * | 2003-07-22 | 2005-02-17 | Sango Co Ltd | Beading method |
| CN103316989A (en) * | 2012-03-23 | 2013-09-25 | 新疆特变电工集团有限公司 | Numerically-controlled thread punching and shearing equipment for silicon steel sheet |
| CN203992123U (en) * | 2014-07-16 | 2014-12-10 | 中国核工业华兴建设有限公司 | A kind of welding Thin-wall Barrel bulging tendons device |
| WO2017135621A2 (en) * | 2016-02-02 | 2017-08-10 | 김성식 | Metal pipe having inner protective tube and manufacturing method therefor |
| CN206716829U (en) * | 2017-04-20 | 2017-12-08 | 徐州市特种锻压机床厂 | Bulging device for annular workpieces |
| CN208325290U (en) * | 2018-04-02 | 2019-01-04 | 深圳市克伦特印刷设备有限公司 | A kind of printing plate developing machine automatic carriage |
| CN211619837U (en) * | 2020-01-15 | 2020-10-02 | 河北建设集团股份有限公司 | Brick lifting device for building construction |
| CN211619479U (en) * | 2020-02-22 | 2020-10-02 | 罗增义 | Convenient blowing machine of reloading supports pivot mounting structure |
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Application publication date: 20210423 |