CN220837615U - Steel plate limiting device for cold bending forming machine - Google Patents

Steel plate limiting device for cold bending forming machine Download PDF

Info

Publication number
CN220837615U
CN220837615U CN202322448194.9U CN202322448194U CN220837615U CN 220837615 U CN220837615 U CN 220837615U CN 202322448194 U CN202322448194 U CN 202322448194U CN 220837615 U CN220837615 U CN 220837615U
Authority
CN
China
Prior art keywords
plate
face
electric telescopic
sliding
fixedly connected
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202322448194.9U
Other languages
Chinese (zh)
Inventor
周志维
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Sancheng Zhonghe Intelligent Equipment Technology Co ltd
Original Assignee
Qingdao Sancheng Zhonghe Intelligent Equipment Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Sancheng Zhonghe Intelligent Equipment Technology Co ltd filed Critical Qingdao Sancheng Zhonghe Intelligent Equipment Technology Co ltd
Priority to CN202322448194.9U priority Critical patent/CN220837615U/en
Application granted granted Critical
Publication of CN220837615U publication Critical patent/CN220837615U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

The utility model relates to the technical field of cold roll forming machines, in particular to a steel plate limiting device for a cold roll forming machine, which comprises a bottom strip, wherein the left end face of the bottom strip is contacted with a movable plate, the lower end face of the movable plate is fixedly connected with a bottom plate, the upper end face of the bottom plate is contacted with a side roller, the upper end face of the bottom strip is contacted with a first top plate, the right side of the upper end face of the first top plate is provided with a rotating shaft, the middle of the rotating shaft is internally and rotatably connected with a conveying belt, the right side of the rotating shaft is fixedly connected with a motor, the left end face of the rotating shaft is rotatably connected with a second top plate, the middle of the rotating shaft is fixedly connected with a rolling roller, through design and matching, the second electric telescopic rod can be started to jack up the first top plate and the second top plate to a required height when the device encounters a steel plate with higher height, and then telescopic the second electric telescopic rod is used for limiting or extruding the steel plate to transport the steel plate.

Description

Steel plate limiting device for cold bending forming machine
Technical Field
The utility model relates to the technical field of cold roll forming machines, in particular to a steel plate limiting device for a cold roll forming machine.
Background
The cold bending forming is a new process for effectively forming metal plates, and by utilizing the process, not only high-quality profile steel products can be produced, but also the development period of the products can be shortened, the production efficiency can be improved, the requirements of cold bending machines are continuously improved in recent years, the requirements on the cold bending machines are higher and higher, and a steel plate limiting device for a cold bending forming machine is required.
The patent specification with the publication number of CN215697480U discloses a steel plate limiting device for a cold roll forming machine, which comprises a first limiting device, a conveying frame, a roller, a driving belt, a motor, a second limiting device and a conveying roller, wherein the roller is uniformly rotatably arranged in the upper end of the conveying frame, the first limiting device is arranged at one bottom end of the inner side of the conveying frame, the second limiting device is arranged at the other bottom end of the inner side of the conveying frame, the driving belt is uniformly rotatably arranged at the outer end of the conveying frame, the driving belt is fixedly connected with the front end of the roller, the driving belt is rotatably connected onto the driving belt, the motor is fixedly connected to the middle part of the outer end face of the driving belt on one side, and the motor is fixedly connected onto the conveying frame through a supporting frame.
However, the steel plate limiting device for the cold roll forming machine has the following problems in the implementation of the related art: the device can drive each roller to synchronously rotate through the starting motor, the motor drives the belt pulley and the driving belt, at the moment, the rotating rollers can convey the steel plate to the position between the rollers and the conveying rollers, the limiting conveying rollers in the first limiting device and the second limiting device play a role in limiting the two sides of the steel plate through the limiting conveying rollers in the conveying process, so that the steel plate cannot deviate and shake in the conveying process between the rollers and the conveying rollers, the distance between the rollers and the conveying rollers of the device is a fixed distance, when the steel plate with different thickness is required to be produced, the feeding port can be difficult to debug, when the thickness of the steel plate is thicker, the steel plate can hardly enter the inside of the device to carry out extrusion limiting transportation, and certain limitation is provided, and in view of the above, the steel plate limiting device for the cold bending forming machine is provided to overcome the defects.
Disclosure of utility model
The utility model aims to solve the defects in the prior art and provides a steel plate limiting device for a cold-bending forming machine.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: including the sill bar, sill bar left end face contact has the movable plate, terminal surface fixedly connected with bottom plate under the movable plate, bottom plate up end contact has a side roller, sill bar up end contact has first roof, first roof up end right side is provided with the pivot, inside rotation is connected with the conveyer belt in the middle of the pivot, pivot right side fixedly connected with motor, pivot left end face rotates and is connected with the second roof, fixedly connected with roller in the middle of the pivot, the inside sliding connection of movable plate has the sliding plate, the spacing groove has been seted up to the inside front and back side of movable plate, side fixedly connected with stopper around the sliding plate, movable plate up end right side fixedly connected with first fixed plate, movable plate up end contact has the second fixed plate, second fixed plate fixedly connected with haulage plate, terminal surface upside fixedly connected with sliding block around the pivot, inside first electric telescopic handle that is provided with of sill bar, inside is provided with the second electric telescopic handle, the inside is provided with the first roof down, the inside sliding connection of movable plate has the inside top plate, the inside top plate is seted up to the side of sliding connection behind the first roof.
As a further description of the above technical solution: the right end face of the second top plate is rotationally connected with the left end face of the rotating shaft, and the distance between the left end face of the first top plate and the right end face of the second top plate is equal to the length of the rolling roller.
As a further description of the above technical solution: the number of the bottom plates, the moving plates, the bottom strips and the sliding plates is two, and the bottom strips, the moving plates, the bottom plates and the sliding plates are in symmetrical relation with the middle point of the conveying roller as the center.
As a further description of the above technical solution: the number of the first fixing plates and the second fixing plates is a plurality, the number of the side rollers is equal to the sum of the first fixing plates and the second fixing plates, the upper end faces of the side rollers are rotationally connected with the lower end faces of the first fixing plates and the second fixing plates, the first fixing plates and the second fixing plates are located on the upper sides of the moving plates and are in alternating relation with each other, the lower end faces of the traction plates are in contact with the upper end faces of the first fixing plates, and the lower end faces of the second fixing plates are fixedly connected with the upper end faces of the sliding plates.
As a further description of the above technical solution: the length of the conveying roller is equal to the distance between the right end face of the left bottom plate and the left end face of the right bottom plate, the left side and the right side of the conveying roller are rotationally connected with the bottom plate, and the rotating shaft penetrates through the first top plate and is fixedly connected with the rolling roller.
As a further description of the above technical solution: four first electric telescopic rods are arranged in the bottom strip, the first electric telescopic rods are arranged on the right end faces of the front side and the rear side of the bottom strip, the right end faces of the first electric telescopic rods are fixedly connected with the left side of the movable plate, the first electric telescopic rods are symmetrically arranged in the right bottom strip by taking the midpoint of the conveying roller as the center, eight first electric telescopic rods are arranged in total, two second electric telescopic rods are arranged in the upper end face of the bottom strip, the upper end faces of the second electric telescopic rods are fixedly connected with the second top plate, and the second electric telescopic rods are symmetrically arranged in the right bottom strip by taking the midpoint of the conveying roller as the center.
As a further description of the above technical solution: the number of the traction plates and the number of the movable bins are two, the traction plates are respectively located in the first top plate and the second top plate, the number of the sliding blocks and the number of the sliding grooves are four, the sliding blocks are slidably connected inside the sliding grooves, the length of the sliding grooves is equal to the pushing distance of the first electric telescopic rod, and the height of the limiting grooves is equal to the pushing distance of the second electric telescopic rod.
The utility model has the following beneficial effects:
according to the steel plate limiting device for the cold bending forming machine, through design and matching, the original technology is not damaged, when the device encounters a steel plate with higher height, the second electric telescopic rod can be started to jack up the first top plate and the second top plate to the required height, when the steel plate enters the device, the second electric telescopic rod stretches out and draws back to limit or squeeze the steel plate, the device divides the side rollers into two parts which are alternately arranged on the same plane, and along with the rising of the first top plate and the second top plate, one part of the side rollers rises along with the rising of the traction plate, and the first electric telescopic rod can push the moving plate, the sliding plate and the traction plate to limit and squeeze the side surfaces of the steel plate.
Drawings
FIG. 1 is a schematic overall perspective view of the present utility model;
FIG. 2 is a schematic perspective view of a mobile plate according to the present utility model;
FIG. 3 is a schematic view of an exploded perspective view of a bottom strip according to the present utility model;
FIG. 4 is a schematic view of the bottom of the second top plate of the present utility model;
FIG. 5 is a schematic perspective view of a sliding tray according to the present utility model;
FIG. 6 is a schematic perspective view of a second electric telescopic rod according to the present utility model;
fig. 7 is a schematic cross-sectional perspective view of the sliding plate of the present utility model.
Legend description:
1. A bottom strip; 2. a moving plate; 3. a bottom plate; 4. a motor; 5. a rolling roller; 6. a conveying roller; 7. a conveyor belt; 8. a rotating shaft; 9. a first top plate; 10. a first fixing plate; 11. a second fixing plate; 12. a traction plate; 13. a first electric telescopic rod; 14. a second electric telescopic rod; 15. a sliding block; 16. a sliding plate; 17. moving the bin; 18. a sliding groove; 19. a side roller; 20. a second top plate; 21. a limit groove; 22. and a limiting block.
Detailed Description
Referring to fig. 1-7, the utility model provides a steel plate limiting device for a cold roll forming machine, which comprises: including sill bar 1, sill bar 1 left end face contact has movable plate 2, movable plate 2 lower terminal surface fixedly connected with bottom plate 3, bottom plate 3 up end contact has side roller 19, sill bar 1 up end contact has first roof 9, first roof 9 up end right side is provided with pivot 8, inside rotation is connected with conveyer belt 7 in the middle of the pivot 8, pivot 8 right side fixedly connected with motor 4, pivot 8 left end face rotates and is connected with second roof 20, fixedly connected with roller 5 in the middle of the pivot 8, movable plate 2 inside sliding connection has sliding plate 16, limit groove 21 has been seted up to movable plate 2 inside front and back side, sliding plate 16 front and back side below fixedly connected with stopper 22, movable plate 2 up end right side fixedly connected with first fixed plate 10, movable plate 2 up end contact has second fixed plate 11, second fixed plate 11 fixedly connected with haulage plate 12, terminal surface upside fixedly connected with sliding block 15 in the front and back of the pivot 8, inside first electric telescopic link 13 that is provided with of sill bar 1, inside is provided with second electric telescopic link 14, first terminal surface 9 inside is provided with roof 17 in the front and back side of the inside sliding plate 9, sliding connection has the inside sliding plate 18 in the first roof 3, sliding plate 3 inside sliding connection has the inside groove is seted up to the bottom plate 18.
As a further embodiment of the above technical solution: the right end face of the second top plate 20 is rotationally connected with the left end face of the rotating shaft 8, the distance between the left end face of the first top plate 9 and the right end face of the second top plate 20 is equal to the length of the rolling roller 5, the rotating shaft 8 rotates to drive the rolling roller 5 to rotate between the first top plate 9 and the second top plate 20, and the steel plate can be extruded and conveyed by matching with the conveying roller 6 at the bottom of the device.
As a further embodiment of the above technical solution: the number of the bottom plate 3, the moving plate 2, the bottom strips 1 and the sliding plates 16 is two, the bottom strips 1, the moving plate 2, the bottom plate 3 and the sliding plates 16 are in symmetrical relation with the middle point of the conveying roller 6 as the center, and the moving plate 2 and the sliding plates 16 can drive the side rollers 19 to extrude and limit the side surfaces of the steel plates inside the device and transport the steel plates by matching with the rotation of the rolling rollers 5 under the pushing of the first electric telescopic rods 13.
As a further embodiment of the above technical solution: the number of the first fixing plates 10 and the second fixing plates 11 is a plurality of, the number of the side rollers 19 is equal to the sum of the first fixing plates 10 and the second fixing plates 11, the upper end faces of the side rollers 19 are rotationally connected with the lower end faces of the first fixing plates 10 and the second fixing plates 11, the first fixing plates 10 and the second fixing plates 11 are located on the upper side of the movable plate 2 and are in alternating relation with each other, the lower end faces of the traction plates 12 are in contact with the upper end faces of the first fixing plates 10, the lower end faces of the second fixing plates 11 are fixedly connected with the upper end faces of the sliding plates 16, and the side rollers 19 can extrude and limit steel plates with different heights under the action of the second fixing plates 11 of the first fixing plates 10.
As a further embodiment of the above technical solution: the length of the conveying roller 6 is equal to the distance between the right end face of the left bottom plate 3 and the left end face of the right bottom plate 3, the left side and the right side of the conveying roller 6 are rotationally connected with the bottom plate 3, the rotating shaft 8 penetrates through the first top plate 9 and is fixedly connected with the rolling roller 5, the right end face of the rotating shaft 8 is fixedly connected with the motor 4, the right end face of the motor 4 is fixed on the front side of the upper end face of the first top plate 9, the motor 4 is rotationally driven to rotate with the rotating shaft 8 and the conveying belt 7, the rotating shaft 8 and the conveying belt 7 are rotationally driven to rotate the rolling roller 5, and the rolling roller 5 is matched with the conveying roller 6 to work.
As a further embodiment of the above technical solution: four first electric telescopic rods 13 are arranged in the bottom strip 1, the first electric telescopic rods 13 are arranged on the right end faces of the front side and the rear side of the bottom strip 1, the right end faces of the first electric telescopic rods 13 are fixedly connected with the left side of the movable plate 2, the first electric telescopic rods 13 are symmetrically arranged on the center of the midpoint of the conveying roller 6 and are arranged inside the right bottom strip 1, eight first electric telescopic rods 13 are arranged in total, two second electric telescopic rods 14 are arranged inside the upper end face of the bottom strip 1, the upper end faces of the second electric telescopic rods 14 are fixedly connected with the second top plate 20, the second electric telescopic rods 14 are symmetrically arranged on the center of the midpoint of the conveying roller 6 and are arranged inside the right bottom strip 1, the first electric telescopic rods 13 can push the movable plate 2, the sliding plate 16 and the traction plate 12 to be extruded and limited between devices, the second electric telescopic rods 14 can jack the first top plate 9 and the second top plate 20 upwards, the traction plate 12, the second fixed plate 11, the side rollers 19 and the sliding plate 16 are lifted, the height of the steel plate is adapted, and the steel plate is extruded and retracted through the second electric telescopic rods 14 to limit the steel plate.
As a further embodiment of the above technical solution: the number of the traction plates 12 and the number of the movable bins 17 are two, the traction plates 12 are respectively positioned in the movable bins 17 on the lower end surfaces of the first top plate 9 and the second top plate 20, the number of the sliding blocks 15 and the number of the sliding grooves 18 are four, the sliding blocks 15 are slidably connected in the sliding grooves 18, the length of the sliding grooves 18 is equal to the pushing distance of the first electric telescopic rod 13, the height of the limiting grooves 21 is equal to the pushing distance of the second electric telescopic rod 14, the traction plates 12 can slide in the sliding grooves 18 through the sliding blocks 15, the lower end surfaces of the traction plates 12 are fixed with the second fixed plates 11, the second fixed plates 11 are fixed with the sliding plates 16, the sliding plates 16 are limited in the movable plates 2, the lengths and the heights of the sliding grooves 18 and the limiting grooves 21 are equal to the maximum distances of the expansion of the first electric telescopic rod 13 and the second electric telescopic rod 14, and stability of the device can be improved.
Working principle:
When the steel plate regulating device is used, the device is regulated according to the thickness of the steel plate, the device can push the movable plate 2 and the bottom plate 3 to move through the first electric telescopic rod 13 in the bottom strip 1, the movable plate 2 drives the movable plate 16 to move, the movable plate 16 drives the second fixed plate 11 to move, the second fixed plate 11 drives the traction plate 12 and the sliding block 15 to move in the sliding groove 18, so that the width of the steel plate is limited, then the second electric telescopic rod 14 is started, the second electric telescopic rod 14 jacks up the first top plate 9, the first top plate 9 drives the sliding block 15 and the traction plate 12 in the movable bin 17 to rise, the traction plate 12 drives the second fixed plate 11 to rise, the second fixed plate 11 drives the sliding plate 16 and the limiting block 22 to rise in the limiting groove 21, the second fixed plate 11 drives the side roller 19 to rise, and the second top plate 20 is identical, so that the device can accommodate the steel plate with thicker thickness, and simultaneously, the side roller 19 connected with the first fixed plate 10 in a rotating way can realize limiting extrusion of a larger range, the possibility of the side edge of the steel plate is reduced, after the motor 4 is started, the motor 4 drives the rotation shaft 8 and the rotation shaft 8 drives the rotation shaft 8 to rotate, and the rotation shaft 8 rotates and the rotation shaft 5 rotates and the rotation shaft 8 rotates and the limit roller 8 rotates and the rotation shaft 5.
Finally, it should be noted that: the foregoing description of the preferred embodiments of the present utility model is not intended to be limiting, but rather, it will be apparent to those skilled in the art that the foregoing description of the preferred embodiments of the present utility model can be modified or equivalents can be substituted for some of the features thereof, and any modification, equivalent substitution, improvement or the like that is within the spirit and principles of the present utility model should be included in the scope of the present utility model.

Claims (7)

1. The utility model provides a cold roll forming machine steel sheet stop device, includes sill bar (1), its characterized in that: the utility model discloses a traction rod, including bottom strip (1), bottom strip (2) left end face contact, bottom strip (2) lower terminal surface fixedly connected with bottom plate (3), bottom plate (3) up end contact has side cylinder (19), bottom strip (1) up end contact has first roof (9), first roof (9) up end right side is provided with pivot (8), inside rotation is connected with conveyer belt (7) in the middle of pivot (8), pivot (8) right side fixedly connected with motor (4), pivot (8) left end face rotation is connected with second roof (20), fixedly connected with roller (5) in the middle of pivot (8), inside sliding connection of movable plate (2) has sliding plate (16), limiting groove (21) have been seted up to inside front and back side of movable plate (2), sliding plate (16) front and back side below fixedly connected with stopper (22), movable plate (2) up end face right side fixedly connected with first fixed plate (10), movable plate (2) up end face contact has second roof (11), second traction plate (11) fixedly connected with bottom strip (12) inside sliding connection has (12), the novel lifting device is characterized in that a second electric telescopic rod (14) is arranged inside the bottom strip (1), a movable bin (17) is arranged inside the lower end face of the first top plate (9), a sliding groove (18) is formed in the front side and the rear side of the lower end face of the first top plate (9), and the left end face of the bottom plate (3) is rotationally connected with a conveying roller (6).
2. The steel plate limiting device for a cold roll forming machine according to claim 1, wherein: the right end face of the second top plate (20) is rotationally connected with the left end face of the rotating shaft (8), and the distance between the left end face of the first top plate (9) and the right end face of the second top plate (20) is equal to the length of the rolling roller (5).
3. The steel plate limiting device for a cold roll forming machine according to claim 1, wherein: the number of the bottom plates (3), the movable plates (2), the bottom strips (1) and the sliding plates (16) is two, and the bottom strips (1), the movable plates (2), the bottom plates (3) and the sliding plates (16) are in symmetrical relation with the middle point of the conveying roller (6) as the center.
4. The steel plate limiting device for a cold roll forming machine according to claim 1, wherein: the utility model discloses a fixed plate, including fixed plate (2), fixed plate (10), fixed plate (11), fixed plate (2) are the fixed plate, fixed plate (2) are located and are the mutual relation of alternation, and terminal surface and fixed plate (10) up end contact under traction plate (12), fixed plate (11) down terminal surface and sliding plate (16) up end fixed connection under fixed plate (10), second fixed plate (11), fixed plate (10), fixed plate (11) are located movable plate (2) upside.
5. The steel plate limiting device for a cold roll forming machine according to claim 1, wherein: the length of the conveying roller (6) is equal to the distance between the right end face of the left bottom plate (3) and the left end face of the right bottom plate (3), the left side and the right side of the conveying roller (6) are rotationally connected with the bottom plate (3), and the rotating shaft (8) penetrates through the first top plate (9) and is fixedly connected with the rolling roller (5).
6. The steel plate limiting device for a cold roll forming machine according to claim 1, wherein: four first electric telescopic rods (13) are arranged in the bottom strip (1), the first electric telescopic rods (13) are arranged on the right end faces of the front side and the rear side of the bottom strip (1), the right end faces of the first electric telescopic rods (13) are fixedly connected with the left side of the movable plate (2), the first electric telescopic rods (13) are symmetrically arranged in the right bottom strip (1) by taking the middle point of the conveying roller (6) as the center, eight first electric telescopic rods (13) are arranged in total, two second electric telescopic rods (14) are arranged in the upper end face of the bottom strip (1), the upper end faces of the second electric telescopic rods (14) are fixedly connected with the second top plate (20), and the second electric telescopic rods (14) are symmetrically arranged in the right bottom strip (1) by taking the middle point of the conveying roller (6) as the center.
7. The steel plate limiting device for a cold roll forming machine according to claim 1, wherein: the utility model discloses a motor vehicle, including traction plate (12), removal storehouse (17) quantity all has two, and traction plate (12) are located the inside of terminal surface removal storehouse (17) under first roof (9), second roof (20) respectively, sliding block (15), sliding tray (18) all have four, and sliding block (15) sliding connection is inside sliding tray (18), the length of sliding tray (18) equals the promotion distance of first electric telescopic handle (13), the height of spacing groove (21) equals the promotion distance of second electric telescopic handle (14).
CN202322448194.9U 2023-09-08 2023-09-08 Steel plate limiting device for cold bending forming machine Active CN220837615U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322448194.9U CN220837615U (en) 2023-09-08 2023-09-08 Steel plate limiting device for cold bending forming machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322448194.9U CN220837615U (en) 2023-09-08 2023-09-08 Steel plate limiting device for cold bending forming machine

Publications (1)

Publication Number Publication Date
CN220837615U true CN220837615U (en) 2024-04-26

Family

ID=90742371

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322448194.9U Active CN220837615U (en) 2023-09-08 2023-09-08 Steel plate limiting device for cold bending forming machine

Country Status (1)

Country Link
CN (1) CN220837615U (en)

Similar Documents

Publication Publication Date Title
CN111790775A (en) Straightening device for eliminating bending and twisting of aluminum profile
CN112387608A (en) Computer hardware detects conveyor based on it is spacing to extrude
CN220837615U (en) Steel plate limiting device for cold bending forming machine
CN107651369B (en) Finished brick quantitative conveying and marshalling device
CN215756166U (en) Hydraulic lifting platform with conveying mechanism
CN215972257U (en) Tire clamping device for tire packaging
CN213975753U (en) Intermittently-driven conveying device
CN214452234U (en) Chain conveying marshalling for baked bricks
CN112829047B (en) High-efficient roll forming equipment of longquan celadon of bull moulding-die
CN108820837A (en) A kind of intelligent conveying machinery of plastic clad sheet steel production and processing
CN212652437U (en) Cold-bending circle machine equipment
CN218252308U (en) Section bar does not have trace forming device
CN220906412U (en) Pneumatic side displacement steel device
CN220617397U (en) Conveying brick dividing and grouping device
CN218982947U (en) Upright post extrusion forming device
CN220115579U (en) Plate stack overturning and conveying device
CN219135303U (en) Logistics carrying stacking device convenient to transport
CN218611214U (en) Stamping assembly line for hardware machining
CN219116530U (en) Feeding mechanism for aluminum alloy door and window production
CN213559151U (en) Rolling pay-off structure of rhombus metal mesh plate
CN213893056U (en) Automatic pad pasting business turn over material device
CN211687165U (en) Roll-off platform is used in photovoltaic module production convenient to adjust
CN212449697U (en) Aluminium base board layering discharging device
CN215032682U (en) Automatic metal box machining equipment
CN212442680U (en) Elevator door plant bend assembly line

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant