CN216506928U - Desk press for transformer core - Google Patents

Desk press for transformer core Download PDF

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Publication number
CN216506928U
CN216506928U CN202122734157.5U CN202122734157U CN216506928U CN 216506928 U CN216506928 U CN 216506928U CN 202122734157 U CN202122734157 U CN 202122734157U CN 216506928 U CN216506928 U CN 216506928U
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China
Prior art keywords
groups
sets
plate
dust collection
sleeve
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Expired - Fee Related
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CN202122734157.5U
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Chinese (zh)
Inventor
吕敬
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Dalian Hengxin Transformer Co ltd
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Dalian Hengxin Transformer Co ltd
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Priority to CN202122734157.5U priority Critical patent/CN216506928U/en
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Publication of CN216506928U publication Critical patent/CN216506928U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model relates to the technical field of mechanical equipment, in particular to a table type press machine for a transformer iron core, wherein after a turntable rotates, two groups of bolts slide left and right in two groups of external members through the support of two groups of connecting rods, so that the two groups of bolts are respectively inserted into a plurality of groups of through holes of a side plate through sliding to fix the position of a workbench, the position fixing effect of the workbench after different heights are adjusted is improved, the stability of the workbench on the support of the transformer iron core is improved, and the practicability of the device is improved; including bottom plate, curb plate, pressing means, roof, first slider, workstation, carousel, mounting bracket, motor, first sleeve, first spliced pole, multiunit limiting plate, two sets of connecting rods, two sets of bolts, two sets of external members and two sets of first pneumatic cylinders, the bottom plate top is connected with the curb plate bottom, and pressing means installs on the curb plate, and the roof bottom is connected with the curb plate top, and slidable mounting is about respectively on the curb plate for the first slider of multiunit.

Description

Desk press for transformer core
Technical Field
The utility model relates to the technical field of mechanical equipment, in particular to a table type press machine for a transformer iron core.
Background
The table type press machine for the transformer iron core is an auxiliary device for processing the transformer iron core, and is widely used in the field of mechanical equipment; present a desk-top press for transformer core discovers in using, the press is a structure exquisite commonality press, it is extensive to have the usage, characteristics such as production efficiency height, but the press wide application is cut off, punch a hole, the blanking, it is crooked, technologies such as riveting and shaping, press when using when adding man-hour to transformer core at present, the press is highly not convenient for adjust transformer core's supporting platform, lead to the press not convenient for carry out the processing of pressing of different degrees to transformer core, the use limitation of pressure has been increased, and fixed convenience behind the press supporting platform altitude mixture control is relatively poor, the work efficiency of press has been reduced, the practicality of press has been reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides the table press for the transformer core, which has the advantages that after the rotary table rotates, the two groups of bolts slide left and right in the two groups of external members through the support of the two groups of connecting rods, so that the two groups of bolts are respectively inserted into the multiple groups of through holes of the side plates through sliding to fix the position of the workbench, the position fixing effect of the workbench after different heights are adjusted is improved, the stability of the workbench for supporting the transformer core is improved, and the practicability of the device is improved.
The utility model relates to a table press for transformer iron cores, which comprises a bottom plate, side plates, a pressing mechanism, a top plate, a first slide block, a workbench, a rotary table, a mounting frame, a motor, a first sleeve, a first connecting column, a plurality of groups of limiting plates, two groups of connecting rods, two groups of bolts, two groups of external members and two groups of first hydraulic cylinders, wherein the top end of the bottom plate is connected with the bottom end of the side plates, the pressing mechanism is arranged on the side plates, the bottom end of the top plate is connected with the top end of the side plates, the plurality of groups of first slide blocks can be respectively arranged on the side plates in a vertically sliding manner, the outer edge of the workbench is connected with the outer side walls of the plurality of groups of first slide blocks, the top end of the rotary table is rotatably connected with the bottom end of the workbench, the bottom end of the mounting frame is connected with the top end of the bottom plate, the motor is arranged on the inner side wall of the mounting frame, the first sleeve is rotatably arranged at the top end of the first sleeve, a plurality of slide grooves are arranged in the opening, the lower part of the first connecting post extends into the first sleeve through the opening, the top end of the first connecting post is fixedly connected with the bottom end of the rotary disc, a plurality of groups of limiting plates are all arranged on the outer side wall of the first connecting post, and a plurality of groups of limiting plates respectively slide up and down in a plurality of groups of sliding chutes of the first sleeve opening, one ends of two groups of connecting rods are rotatably connected with the outer side wall of the turntable, one end of each group of connecting rods is respectively arranged at the eccentric position of the turntable, the other end of each group of connecting rods is respectively rotatably connected with one end of each group of bolts, the top ends of the two groups of external members are respectively connected with the bottom end of the worktable, the middle parts of the two groups of bolts respectively slide in the two groups of external members from side to side, and be provided with the multiunit through-hole on the curb plate lateral wall, inside the other end of two sets of bolts stretched into the multiunit through-hole respectively through sliding, the bottom of two sets of first pneumatic cylinders all was connected with the bottom plate top, and two sets of first pneumatic cylinder tops are connected with two sets of external members bottoms respectively.
The utility model relates to a table press for transformer cores, which comprises a second sliding block, a push plate, a press head, second hydraulic cylinders, second sleeves, second connecting columns and springs, wherein a plurality of groups of second sliding blocks are arranged inside a side plate in a vertically sliding mode, the outer edges of the push plate are connected with the outer side walls of the plurality of groups of second sliding blocks, the top end of the press head is connected with the bottom end of the push plate, a plurality of groups of second hydraulic cylinders are all arranged on the inner side wall of a top plate, the bottom end output ends of the plurality of groups of second hydraulic cylinders are all connected with the top end of the push plate, the top ends of the plurality of groups of second sleeves are all connected with the bottom end of the top plate, the upper portions of the plurality of groups of second connecting columns are respectively arranged inside the plurality of groups of second sleeves in a vertically sliding mode, the bottom ends of the plurality of groups of second connecting columns are all connected with the top end of the push plate, and the plurality of springs are respectively installed on the outer side walls of the plurality of second connecting columns in a matched mode and are respectively arranged inside the plurality of groups of second sleeves.
The table press for the transformer iron core further comprises a dust collection box, an induced draft fan and a hose, wherein the dust collection box is installed on the outer side wall of the side plate, an air inlet and an air outlet are formed in the dust collection box, the air inlet and the air outlet are communicated with the interior of the dust collection box, the induced draft fan is installed on the outer side wall of the dust collection box and communicated with the air outlet of the dust collection box, the hose is communicated with the air inlet of the dust collection box, a dust collection groove is formed in the top end of the workbench, and the input end of the hose is communicated with the dust collection groove.
The table press for the transformer iron core further comprises a plurality of groups of spring telescopic columns and a plurality of groups of support legs, the top ends of the plurality of groups of spring telescopic columns are connected with the bottom end of the bottom plate, and the top ends of the plurality of groups of support legs are respectively connected with the bottom ends of the plurality of groups of spring telescopic columns.
The table press for the transformer core further comprises a plurality of groups of anti-slip pads, and the plurality of groups of anti-slip pads are respectively connected with the top ends of the plurality of groups of support legs.
The table type press machine for the transformer iron core further comprises a height measuring instrument, and the height measuring instrument is installed at the top end of the workbench.
Compared with the prior art, the utility model has the beneficial effects that: open two sets of first pneumatic cylinders and promote the workstation through two sets of external members and slide from top to bottom, thereby make the workstation adjust transformer core's support height, improve transformer core processing altitude mixture control's convenience, reduce the use limitation of device, it is rotatory to drive first sleeve through opening the motor, first sleeve is rotatory to drive the carousel through first spliced pole and rotates, the carousel rotates the back and makes two sets of bolts horizontal slip in two sets of external members through the support of two sets of connecting rods, thereby make two sets of bolts insert the position of workstation after the multiunit through-hole of curb plate is inside respectively through sliding, thereby improve the fixed effect of workstation position after the different altitude mixture control, improve the stability that the workstation supported transformer core, improve the practicality of device.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a bottom view enlarged structure diagram of the connection of the turntable and the connecting rod;
FIG. 3 is an enlarged view of the connection of the connecting rod with the latch, etc.;
FIG. 4 is an enlarged view of the first sleeve in connection with the first connecting post or the like;
FIG. 5 is an enlarged schematic view of the connection of the second sleeve to the second connecting post, etc.;
in the drawings, the reference numbers: 1. a base plate; 2. a side plate; 3. a top plate; 4. a first slider; 5. a work table; 6. a turntable; 7. a mounting frame; 8. a motor; 9. a first sleeve; 10. a first connecting column; 11. a limiting plate; 12. a connecting rod; 13. a bolt; 14. a kit; 15. a first hydraulic cylinder; 16. a second slider; 17. pushing the plate; 18. a pressing head; 19. a second hydraulic cylinder; 20. a second sleeve; 21. a second connecting column; 22. a spring; 23. a dust collection box; 24. an induced draft fan; 25. a hose; 26. a spring telescopic column; 27. a support leg; 28. a non-slip mat; 29. a height measuring instrument.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
As shown in fig. 1 to 5, the table press for transformer cores of the present invention comprises a bottom plate 1, a side plate 2, a pressing mechanism, a top plate 3, a first slide block 4, a workbench 5, a rotary table 6, a mounting frame 7, a motor 8, a first sleeve 9, a first connecting post 10, a plurality of sets of limiting plates 11, two sets of connecting rods 12, two sets of bolts 13, two sets of kits 14, and two sets of first hydraulic cylinders 15, wherein the top end of the bottom plate 1 is connected with the bottom end of the side plate 2, the pressing mechanism is mounted on the side plate 2, the bottom end of the top plate 3 is connected with the top end of the side plate 2, the plurality of sets of first slide blocks 4 are respectively slidably mounted on the side plate 2 up and down, the outer edge of the workbench 5 is connected with the outer side walls of the plurality of sets of first slide blocks 4, the top end of the rotary table 6 is rotatably connected with the bottom end of the workbench 5, the bottom end of the mounting frame 7 is connected with the top end of the bottom plate 1, the motor 8 is mounted on the inner side wall of the mounting frame 7, the first sleeve 9 is rotatably mounted on the top end of the mounting frame 7, the output end of the motor 8 is connected with the bottom end of the first sleeve 9, the top end of the first sleeve 9 is provided with an opening, a plurality of groups of sliding grooves are arranged in the opening, the lower part of the first connecting column 10 extends into the first sleeve 9 through the opening, the top end of the first connecting column 10 is fixedly connected with the bottom end of the rotary table 6, a plurality of groups of limiting plates 11 are arranged on the outer side wall of the first connecting column 10, the plurality of groups of limiting plates 11 respectively slide up and down in the plurality of groups of sliding grooves of the opening of the first sleeve 9, one end of two groups of connecting rods 12 are rotatably connected with the outer side wall of the rotary table 6, one end of two groups of connecting rods 12 are respectively arranged at the eccentric position of the rotary table 6, the other ends of two groups of connecting rods 12 are respectively rotatably connected with one ends of two groups of bolts 13, the top ends of two groups of sleeves 14 are respectively connected with the bottom end of the workbench 5, the middle parts of the two groups of bolts 13 respectively slide left and right in the two groups of sleeves 14, and a plurality of through holes are arranged on the outer side wall of the side plate 2, the other ends of the two groups of bolts 13 respectively extend into the through holes by sliding, the bottom ends of the two groups of first hydraulic cylinders 15 are connected with the top end of the bottom plate 1, and the top ends of the two groups of first hydraulic cylinders 15 are respectively connected with the bottom ends of the two groups of external members 14; open two sets of first pneumatic cylinders 15 and promote workstation 5 through two sets of external members 14 and slide from top to bottom, thereby make workstation 5 adjust transformer core's support height, improve transformer core machining altitude mixture control's convenience, reduce the use limitation of device, it is rotatory to drive first sleeve 9 through opening motor 8, first sleeve 9 is rotatory to drive carousel 6 through first spliced pole 10 and rotates, carousel 6 makes two sets of bolts 13 slide from side to side in two sets of external members 14 through the support of two sets of connecting rods 12 after rotating, thereby make two sets of bolts 13 insert the position of workstation 5 after the multiunit through-hole of curb plate 2 is inside respectively through sliding and fix, thereby improve the fixed effect in position behind the different altitude mixture control of workstation 5, improve the stability that workstation 5 supported transformer core, improve the practicality of device.
The utility model relates to a table press for transformer cores, which comprises a pressing mechanism, a plurality of groups of second sliding blocks 16, a push plate 17, a pressing head 18, second hydraulic cylinders 19, a second sleeve 20, a second connecting column 21 and springs 22, wherein the plurality of groups of second sliding blocks 16 can be arranged in a side plate 2 in a vertical sliding manner, the outer edge of the push plate 17 is connected with the outer side walls of the plurality of groups of second sliding blocks 16, the top end of the pressing head 18 is connected with the bottom end of the push plate 17, the plurality of groups of second hydraulic cylinders 19 are all arranged on the inner side wall of a top plate 3, the output ends of the bottom ends of the groups of second hydraulic cylinders 19 are connected with the top end of the push plate 17, the top ends of the groups of second sleeves 20 are connected with the bottom end of the top plate 3, the upper parts of the groups of second connecting columns 21 are respectively arranged in the groups of second sleeves 20 in a vertically sliding manner, the bottom ends of the groups of second connecting columns 21 are respectively connected with the top end of the push plate 17, and the groups of springs 22 are respectively installed on the outer side walls of the groups of second connecting columns 21 in a matched manner and are respectively arranged in the groups of second sleeves 20; promote push pedal 17 downstream through opening multiunit second pneumatic cylinder 19, make push pedal 17 press processing through the transformer core on press head 18 to 5 tops of workstation, improve the convenience of transformer core processing, through setting up multiunit spring 22, make push pedal 17 pull multiunit second spliced pole 21 lapse after the lapse, when push pedal 17 upwards removes, through multiunit spring 22 to multiunit second spliced pole 21's elasticity, make multiunit second spliced pole 21 stimulate push pedal 17 rebound simultaneously, thereby improve the convenience of push pedal 17 upwards removal, reduce the weight of push pedal 17 upwards removal, thereby reduce the energy consumption of device, the practicality of device is improved.
The table press for the transformer iron core further comprises a dust collection box 23, an induced draft fan 24 and a hose 25, wherein the dust collection box 23 is installed on the outer side wall of the side plate 2, an air inlet and an air outlet are formed in the dust collection box 23, the air inlet and the air outlet are communicated with the interior of the dust collection box 23, the induced draft fan 24 is installed on the outer side wall of the dust collection box 23 and communicated with the air outlet of the dust collection box 23, the hose 25 is communicated with the air inlet of the dust collection box 23, a dust collection groove is formed in the top end of the workbench 5, and the input end of the hose 25 is communicated with the dust collection groove; inhale in the dust collection box 23 through opening draught fan 24, absorb the piece dirt in the dust collecting tank through hose 25 after making the interior negative pressure that forms of dust collection box 23 to improve the piece collection convenience that transformer core produced man-hour, reduce the working strength that personnel collected, improve the work efficiency of device, improve the practicality of device.
The table press for the transformer core further comprises a plurality of groups of spring telescopic columns 26 and a plurality of groups of support legs 27, wherein the top ends of the plurality of groups of spring telescopic columns 26 are connected with the bottom end of the bottom plate 1, and the top ends of the plurality of groups of support legs 27 are respectively connected with the bottom ends of the plurality of groups of spring telescopic columns 26; through setting up multiunit spring telescopic column 26, improve the shock attenuation effect of press body during operation, reduce the noise that vibrations produced, improve device's practicality.
The table press for the transformer core further comprises a plurality of groups of anti-slip pads 28, wherein the plurality of groups of anti-slip pads 28 are respectively connected with the top ends of the plurality of groups of support legs 27; through setting up multiunit slipmat 28, improve the frictional force of multiunit stabilizer blade 27 bottom and ground, improve multiunit stabilizer blade 27's anti-skidding effect, improve the stability in use of device.
The desk type press machine for the transformer core further comprises a height measuring instrument 29, wherein the height measuring instrument 29 is installed at the top end of the workbench 5; through setting up altitude measurement appearance 29 to be convenient for measure the elevating height of workstation 5, improve the accuracy of transformer core processing, improve the convenience of processing.
The utility model relates to a table press for transformer cores, which is characterized in that when in work, firstly two groups of first hydraulic cylinders 15 are opened to push a workbench 5 to slide up and down through two groups of external members 14, so that the workbench 5 adjusts the supporting height of the transformer core, a motor 8 is opened to drive a first sleeve 9 to rotate, the first sleeve 9 rotates to drive a rotary table 6 to rotate through a first connecting post 10, the rotary table 6 rotates to drive two groups of bolts 13 to slide left and right in the two groups of external members 14 through the support of two groups of connecting rods 12, so that the two groups of bolts 13 are respectively inserted into a plurality of groups of through holes of a side plate 2 through sliding to fix the position of the workbench 5, then a plurality of groups of second hydraulic cylinders 19 are opened to push a push plate 17 to move downwards, so that the push plate 17 presses the transformer core at the top end of the workbench 5 through a pressing head 18, and the push plate 17 moves downwards and then pulls a plurality of groups of second connecting posts 21 to slide downwards through arranging a plurality of springs 22, when the push plate 17 moves upwards, the plurality of groups of second connecting columns 21 are pulled upwards by the elasticity of the plurality of groups of springs 22, the plurality of groups of second connecting columns 21 are pulled upwards simultaneously, then the draught fan 24 is opened to suck air into the dust collection box 23, and the dust collection box 23 is internally provided with negative pressure and then absorbs the debris and dirt in the dust collection groove through the hose 25.
According to the table type press machine for the transformer iron core, the installation mode, the connection mode or the arrangement mode are common mechanical modes, and the table type press machine can be implemented as long as the beneficial effects of the table type press machine can be achieved; the motor 8, the first hydraulic cylinder 15, the second hydraulic cylinder 19, the induced draft fan 24 and the height measuring instrument 29 of the table press for the transformer core are purchased from the market, and technicians in the industry only need to install and operate according to the attached operating instructions.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (6)

1. A table press machine for transformer iron cores is characterized by comprising a bottom plate (1), side plates (2), a pressing mechanism, a top plate (3), first sliding blocks (4), a workbench (5), a rotary table (6), a mounting frame (7), a motor (8), a first sleeve (9), first connecting columns (10), a plurality of groups of limiting plates (11), two groups of connecting rods (12), two groups of bolts (13), two groups of external members (14) and two groups of first hydraulic cylinders (15), wherein the top end of the bottom plate (1) is connected with the bottom end of the side plates (2), the pressing mechanism is arranged on the side plates (2), the bottom end of the top plate (3) is connected with the top end of the side plates (2), the plurality of groups of first sliding blocks (4) can be respectively arranged on the side plates (2) in a vertical sliding manner, the outer edges of the workbench (5) are connected with the outer side walls of the plurality of groups of first sliding blocks (4), the top end of the rotary table (6) is rotatably connected with the bottom end of the workbench (5), the bottom end of the mounting frame (7) is connected with the top end of the bottom plate (1), the motor (8) is installed on the inner side wall of the mounting frame (7), the first sleeve (9) is rotatably installed at the top end of the mounting frame (7), the output end of the motor (8) is connected with the bottom end of the first sleeve (9), the top end of the first sleeve (9) is provided with an opening, a plurality of groups of sliding grooves are formed in the opening, the lower part of the first connecting column (10) extends into the first sleeve (9) through the opening, the top end of the first connecting column (10) is fixedly connected with the bottom end of the turntable (6), a plurality of groups of limiting plates (11) are all arranged on the outer side wall of the first connecting column (10), a plurality of groups of limiting plates (11) respectively slide up and down in the plurality of groups of sliding grooves formed in the opening of the first sleeve (9), one ends of two groups of connecting rods (12) are rotatably connected with the outer side wall of the turntable (6), and one ends of the two groups of connecting rods (12) are respectively arranged at the eccentric positions of the turntable (6), the other end of two sets of connecting rods (12) respectively with the one end rotatable coupling of two sets of bolts (13), the top of two sets of external members (14) all is connected with workstation (5) bottom, two sets of bolts (13) middle part is respectively at the inside horizontal slip of two sets of external members (14), and be provided with the multiunit through-hole on curb plate (2) lateral wall, the other end of two sets of bolts (13) stretches into inside the multiunit through-hole respectively through sliding, the bottom of two sets of first pneumatic cylinders (15) all is connected with bottom plate (1) top, two sets of first pneumatic cylinders (15) top is connected with two sets of external members (14) bottom respectively.
2. The table press machine for the transformer core according to claim 1, wherein the pressing mechanism comprises a second slider (16), a push plate (17), a pressing head (18), a second hydraulic cylinder (19), a second sleeve (20), a second connecting column (21) and a spring (22), a plurality of groups of second sliders (16) are slidably arranged in the side plate (2) up and down, the outer edge of the push plate (17) is connected with the outer side wall of the plurality of groups of second sliders (16), the top end of the pressing head (18) is connected with the bottom end of the push plate (17), the plurality of groups of second hydraulic cylinders (19) are all arranged on the inner side wall of the top plate (3), the output ends of the bottom ends of the plurality of groups of second hydraulic cylinders (19) are all connected with the top end of the push plate (17), the top ends of the plurality of groups of second sleeves (20) are all connected with the bottom end of the top plate (3), the upper portions of the plurality of groups of second connecting columns (21) are respectively slidably arranged in the plurality of groups of second sleeves (20) up and down, the bottom of multiunit second spliced pole (21) all is connected with the top of push pedal (17), and multiunit spring (22) cooperate respectively to install on the lateral wall of multiunit second spliced pole (21) and set up respectively inside multiunit second sleeve (20).
3. The table press machine for the transformer iron core according to claim 1, further comprising a dust collection box (23), an induced draft fan (24) and a hose (25), wherein the dust collection box (23) is installed on the outer side wall of the side plate (2), an air inlet and an air outlet are arranged in the dust collection box (23), the air inlet and the air outlet are communicated with the interior of the dust collection box (23), the induced draft fan (24) is installed on the outer side wall of the dust collection box (23) and communicated with the air outlet of the dust collection box (23), the hose (25) is communicated with the air inlet of the dust collection box (23), a dust collection groove is arranged at the top end of the workbench (5), and the input end of the hose (25) is communicated with the dust collection groove.
4. The table press machine for the transformer core according to claim 1, further comprising a plurality of sets of spring telescopic columns (26) and a plurality of sets of support legs (27), wherein the top ends of the plurality of sets of spring telescopic columns (26) are connected with the bottom end of the bottom plate (1), and the top ends of the plurality of sets of support legs (27) are respectively connected with the bottom ends of the plurality of sets of spring telescopic columns (26).
5. The table press for transformer cores according to claim 4, further comprising a plurality of sets of anti-slip pads (28), wherein the plurality of sets of anti-slip pads (28) are respectively connected to the top ends of the plurality of sets of support legs (27).
6. A bench press for transformer cores according to claim 1, further comprising a height gauge (29), the height gauge (29) being mounted on top of the table (5).
CN202122734157.5U 2021-11-09 2021-11-09 Desk press for transformer core Expired - Fee Related CN216506928U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122734157.5U CN216506928U (en) 2021-11-09 2021-11-09 Desk press for transformer core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122734157.5U CN216506928U (en) 2021-11-09 2021-11-09 Desk press for transformer core

Publications (1)

Publication Number Publication Date
CN216506928U true CN216506928U (en) 2022-05-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122734157.5U Expired - Fee Related CN216506928U (en) 2021-11-09 2021-11-09 Desk press for transformer core

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CN (1) CN216506928U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115008644A (en) * 2022-06-09 2022-09-06 钟文兵 Mechanical transmission pressing production mold structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115008644A (en) * 2022-06-09 2022-09-06 钟文兵 Mechanical transmission pressing production mold structure

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