CN222200441U - Die repairing device with lifting function - Google Patents
Die repairing device with lifting function Download PDFInfo
- Publication number
- CN222200441U CN222200441U CN202323389808.7U CN202323389808U CN222200441U CN 222200441 U CN222200441 U CN 222200441U CN 202323389808 U CN202323389808 U CN 202323389808U CN 222200441 U CN222200441 U CN 222200441U
- Authority
- CN
- China
- Prior art keywords
- lifting
- die
- frame
- die repairing
- guide
- 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
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 238000007599 discharging Methods 0.000 claims description 20
- 230000007704 transition Effects 0.000 claims description 10
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002411 adverse Effects 0.000 abstract description 5
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000008439 repair process Effects 0.000 description 5
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 208000010040 Sprains and Strains Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
本实用新型涉及一种带有升降功能的修模装置，其特点在于包括修模台、升降上下料机构，其中升降上下料机构设置在修模台的侧旁或侧壁上。本实用新型带有升降功能，其能达到自动抬升模具与自动降低模具的目的，从而无需人工与叉车安放模具，这不仅能利于降低工人的劳动强度，还能达到提高模具安放的安全性，以及不用在修模装置的侧旁预留叉车作业空间，这就能便于提高车间的空间使用率，从而能降低对生产作业的不利影响。
The utility model relates to a mold repairing device with a lifting function, which is characterized in that it includes a mold repairing platform and a lifting loading and unloading mechanism, wherein the lifting loading and unloading mechanism is arranged on the side or side wall of the mold repairing platform. The utility model has a lifting function, which can achieve the purpose of automatically lifting and lowering the mold, thereby eliminating the need for manual and forklift placement of the mold, which not only helps to reduce the labor intensity of workers, but also improves the safety of mold placement, and does not need to reserve forklift operation space on the side of the mold repairing device, which can facilitate the improvement of the space utilization rate of the workshop, thereby reducing the adverse effects on production operations.
Description
Technical Field
The utility model relates to the technical field of die repairing, in particular to a die repairing device.
Background
At present, in order to facilitate die repair, most of the die is placed on a die repair table. In general, the existing mold repair table is made into a high-height counter structure, for example, the mold repair table is disclosed in patent documents such as China authority bulletin numbers CN214869466U, CN207901075U, CN216178624U and CN 212736714U. Therefore, when the mold is placed on the existing mold repairing table, the mold needs to be moved upwards by a high distance to be placed on the mold repairing table. Among them, the mold is now placed on the mold repair table in most of the following two ways:
First, by manual placement. Because the weight of the mould is heavy (more than hundred jin), a plurality of workers are needed to place the lifted mould on the mould repairing table during manual placement, and the labor intensity of the placement workers is high. The weight of the mould is not uniform, the height and lifting force of each worker cannot be completely the same, the experience of lifting the weight of the workers is insufficient, and the situation of unstable lifting is easy to occur when a plurality of people lift the mould, so that sprains are easy to occur, and even the situations of hand-off and injury to the workers occur, so that the safety of placing the mould is very low.
Second, by fork truck. Because the forklift occupies a large space (the length of the forklift is 3-5 meters, and the width of the forklift is 1.5-2 meters), and the forklift needs a large operation space and a safe distance to be reserved for the forklift, a large free area needs to be reserved beside the die repairing table to serve as the operation space of the forklift, the space utilization rate of a workshop is low easily, and adverse effects are easily brought to production operation.
Therefore, it is necessary to design a die repairing device with lifting function to solve the above technical problems.
Disclosure of utility model
The utility model aims to solve the problems and the defects, and provides a die repairing device with a lifting function, which can achieve the purposes of automatically lifting a die and automatically lowering the die, so that a manual and forklift is not needed to place the die, the labor intensity of workers can be reduced, the safety of die placement can be improved, and a forklift operation space is not needed to be reserved beside the die repairing device, so that the space utilization rate of a workshop can be improved, and the adverse effect on production operation can be reduced.
The technical scheme of the utility model is realized as follows:
The die repairing device with the lifting function is characterized by comprising a die repairing table and a lifting feeding and discharging mechanism, wherein the lifting feeding and discharging mechanism is arranged beside or on the side wall of the die repairing table, the lifting feeding and discharging mechanism comprises a lifting driving assembly and a bearing plate frame, the lifting driving assembly is arranged beside or on the side wall of the die repairing table, and the bearing plate frame is arranged on the lifting end of the lifting driving assembly.
Preferably, the lifting loading and unloading mechanism further comprises a guide frame, and the bearing plate frame can be vertically and slidably arranged on the guide frame.
Preferably, the lifting driving assembly comprises a driving cylinder, a roller frame and at least one traction chain, wherein the roller frame is arranged on the movable end of the driving cylinder and can be vertically and slidably arranged on the guide frame, and two ends of the traction chain are respectively fixedly connected on the guide frame and the support plate frame and enable the traction chain to be wound on the roller frame.
Preferably, the guide frame is provided with an installation cavity, the left cavity wall and the right cavity wall of the installation cavity are respectively provided with a vertical guide groove, the roller frame comprises a transverse rod, two chain wheels and two guide rollers, the middle part of the transverse rod is connected with the movable end of the driving cylinder, the two chain wheels are radially symmetrically sleeved on the transverse rod relative to the middle part of the transverse rod, the two guide rollers are respectively sleeved at the two ends of the transverse rod, the two guide rollers can be respectively embedded in the two vertical guide grooves in a rolling way, and the two traction chains are respectively wound on the two chain wheels.
Preferably, at least one guide wheel is respectively arranged on the left side wall and the right side wall of the rear end of the bearing plate frame, and each guide wheel can be respectively embedded in the corresponding vertical guide groove in a rolling way.
Preferably, the bearing plate frame comprises a bearing plate and a transverse bar, wherein the rear end of the bearing plate is provided with a reinforcing baffle frame, the reinforcing baffle frame is fixedly connected with the traction chain, and the transverse bar is detachably arranged on the upper front wall of the bearing plate.
Preferably, a die repairing bench clamp is arranged at the top of the die repairing bench.
Preferably, a transition bracket is arranged on the die repairing bench between the die repairing bench clamp and the lifting loading and unloading mechanism.
Preferably, at least two die repairing tables are arranged beside the lifting feeding and discharging mechanism.
The die repairing device has the beneficial effects that the die repairing device comprises a die repairing table and a lifting feeding and discharging mechanism, wherein the lifting feeding and discharging mechanism is arranged beside or on the side wall of the die repairing table. The lifting upper and lower feeding mechanisms can be used for automatically lifting the die and automatically lowering the die, so that a user can conveniently operate the upper and lower dies on the die repairing table through the lifting upper and lower feeding mechanisms, and thus, the die is not required to be placed by manpower and a forklift, the labor intensity of workers can be reduced, the safety of die placement can be improved, the forklift operation space is not required to be reserved beside the die repairing device, the space utilization rate of a workshop can be conveniently improved, and the adverse effect on production operation can be reduced.
Drawings
Fig. 1 is a schematic perspective view of a die repairing device in the utility model.
Fig. 2 is a schematic perspective view of a lifting loading and unloading mechanism in the utility model.
Fig. 3 is a schematic diagram of an assembly structure of a lifting driving assembly and a guide frame in the present utility model.
Fig. 4 is a schematic perspective view of a lifting driving assembly according to the present utility model.
Fig. 5 is a schematic perspective view of a support frame according to the present utility model.
FIG. 6 is a schematic diagram showing a second perspective view of the support frame of the present utility model.
Fig. 7 is a schematic perspective view of a transition bracket according to the present utility model.
Detailed Description
As shown in FIG. 1, the die repairing device with the lifting function comprises a die repairing table 1 and a lifting feeding and discharging mechanism 2, wherein the lifting feeding and discharging mechanism 2 is arranged beside or on the side wall of the die repairing table 1.
The die repairing device comprises a die repairing table 1 and a lifting feeding and discharging mechanism 2, wherein the lifting feeding and discharging mechanism 2 is arranged beside or on the side wall of the die repairing table 1. The lifting upper and lower feeding mechanism 2 can be used for automatically lifting the die and automatically lowering the die, so that a user can conveniently operate the upper and lower dies on the die repairing table through the lifting upper and lower feeding mechanism 2, and thus, the die is not required to be placed by manpower and a forklift, the labor intensity of workers can be reduced, the safety of die placement can be improved, the forklift operation space is not required to be reserved beside the die repairing device, the space utilization rate of a workshop can be conveniently improved, and the adverse effect on production operation can be reduced.
As shown in fig. 1 and 2, the lifting loading and unloading mechanism 2 includes a lifting driving assembly 21 and a supporting plate frame 22, the lifting driving assembly 21 is disposed on a side or a side wall of the mold repairing table 1, and the supporting plate frame 22 is disposed on a lifting end of the lifting driving assembly 21. The adoption of the supporting plate frame 22 not only can be beneficial to playing a good role in supporting the die, but also can be convenient for the die to be up and down, thereby further improving the convenience of use.
As shown in fig. 1 and 2, the lifting loading and unloading mechanism 2 further includes a guide frame 23, and the bearing plate frame 22 is vertically slidably disposed on the guide frame 23. The guide frame 23 can play a role in guiding and limiting the supporting plate frame 22, so that the accuracy and stability of the vertical movement of the supporting plate frame 22 can be further improved, and the use safety can be further improved.
As shown in fig. 2 to 4, the lifting driving assembly 21 includes a driving cylinder 211, a roller frame 212, and at least one traction chain 213, the roller frame 212 is disposed on a movable end of the driving cylinder 211, and the roller frame 212 is vertically slidably disposed on the guide frame 23, and two ends of the traction chain 213 are fixedly connected to the guide frame 23 and the support plate frame 22, respectively, and the traction chain 213 is wound on the roller frame 212. The lifting driving assembly 21 has a very simple and reliable structure, so that a die with a large weight can be stably and effectively transferred, and the requirement of actual use can be better met.
As shown in fig. 2 to 4, the guide frame 23 is provided with a mounting cavity 231, the left and right cavity walls of the mounting cavity 231 are respectively provided with a vertical guide groove 232, the roller frame 212 includes a transverse rod 2121, two sprockets 2122, and two guide rollers 2123, the middle part of the transverse rod 2121 is connected with the movable end of the driving cylinder 211, the two sprockets 2122 are radially symmetrically sleeved on the transverse rod 2121 with respect to the middle part of the transverse rod 2121, the two guide rollers 2123 are respectively sleeved at two ends of the transverse rod 2121, the two guide rollers 2123 are respectively rollably embedded in the two vertical guide grooves 232, the two traction chains 213 are respectively wound on the two sprockets 2122. Such roller frame 212 is very simple and reliable, which not only can facilitate the manufacture, but also can facilitate the vertical movement of the roller frame 212 to be more stable, thereby further improving the reliability and applicability of the die repairing device.
As shown in fig. 3 and 4, the vertical guide groove 232 penetrates through the outer wall of the guide frame 23, and a first protruding stop ring 2124 is disposed on the circumferential surface of the guide roller 2123, and the first protruding stop ring 2124 is disposed on the outer wall of the guide frame 23. This can function to limit the lateral rod 2121 from rocking left and right, thereby enabling a smoother vertical movement of the lateral rod 2121.
As shown in fig. 4, the piston rod of the driving cylinder 211 is disposed upward, a connecting rod 2125 is disposed on the middle of the bottom surface of the transverse rod 2121, and the transverse rod 2121 is connected to the piston rod of the driving cylinder 211 through the connecting rod 2125, so that the assembly is convenient.
As shown in fig. 2 and 5, at least one guide wheel 220 is respectively disposed on the left and right side walls of the rear end of the supporting plate frame 22, and each guide wheel 220 is respectively rollably inserted into a corresponding vertical guide groove 232. This can provide a more stable and reliable restraining and guiding action for the support plate frame 22, thereby further improving the accuracy and stability of the vertical movement of the support plate frame 22.
As shown in fig. 5, a second convex baffle ring 2201 is disposed on the circumferential surface of the guide wheel 220, and the second convex baffle ring 2201 is disposed on the outer wall of the guide frame 23. This can restrict the support plate frame 22 from shaking left and right, so that the vertical movement of the support plate frame 22 can be made smoother.
As shown in fig. 2, 5 and 6, the supporting plate frame 22 includes a supporting plate 221 and a rail 222, a reinforcing baffle frame 223 is disposed at the rear end of the supporting plate 221, the reinforcing baffle frame 223 is fixedly connected with the traction chain 213, and the rail 222 is detachably disposed on the upper front wall of the supporting plate 221. By the arrangement of the reinforcing baffle frame 223, not only the structural strength of the connecting part of the traction chain 213 can be enhanced, but also the rear side of the die can be well blocked, and the front side of the die can be blocked by the transverse baffle bar 222, so that the transfer safety of the die can be ensured. By detachably disposing the cross bar 222 on the support plate 221, the cross bar 222 can be removed when the upper and lower molds are made, which can make the upper and lower molds more convenient, thereby contributing to further improvement of the convenience of use.
As shown in fig. 5 and 6, each guide wheel 220 is provided on a side wall of the reinforcement cage 223, so that the installation place of the guide wheel 220 can be ensured to have high structural strength, thereby being beneficial to exerting stronger guiding effect.
As shown in fig. 5 and 6, a plurality of inserting columns 2221 are disposed on the bottom surface of the rail 222, and each inserting column 2221 is detachably inserted into the supporting plate 221. Therefore, not only can the disassembly and assembly requirements of the transverse barrier strips 222 be well met, but also the convenience in disassembly and assembly of the transverse barrier strips 222 can be ensured, and the use can be more convenient.
As shown in fig. 1, a die-repairing bench clamp 3 is arranged at the top of the die-repairing bench 1. Thus, more die repairing operations can be facilitated on the die, and the applicability of the die repairing device can be further improved.
As shown in fig. 1, a transition bracket 4 is arranged on the die-repairing bench 1 between the die-repairing bench clamp 3 and the lifting loading and unloading mechanism 2. Therefore, when the die repairing bench 1 is made to be slightly wider and the die repairing bench clamp 3 is not close to the edge, the transition bracket 4 is utilized to facilitate the transfer of the die between the die repairing bench clamp 3 and the lifting loading and unloading mechanism 2, so that the convenience of related operation is improved.
As shown in fig. 1 and 7, the transition bracket 4 is an n-shaped bracket with a planar top surface, and blocking convex strips 41 are respectively disposed on front and rear sides of the top surface of the transition bracket 4. Thus, the transition bracket 4 has a very simple structure, and the blocking raised strips 41 can play a role in preventing falling, thereby being beneficial to improving the use safety.
As shown in fig. 1, the die trimming device is mainly used for trimming a cylindrical die 10 (for example, a cylindrical aluminum profile extrusion die). The supporting plate 221 can be driven by the lifting driving assembly 21 to approach downwards to the ground or be attached to the ground. In the actual use process, the transverse bar 222 is firstly disassembled, the cylindrical die 10 is rolled onto the supporting plate 221, the transverse bar 222 is mounted, the lifting driving assembly 21 is started, the supporting plate 221 drives the cylindrical die 10 to move upwards, the lifting driving assembly 21 is stopped when the top surface of the supporting plate 221 is flush with the top surface of the transition bracket 4 or the height difference is quite small, the cylindrical die 10 is rolled onto the die repairing bench clamp 3 after passing through the transition bracket 4 through the cylindrical die 10, and then the die repairing operation can be carried out on the die repairing bench clamp 3. After finishing the die repairing operation, the cylindrical die 10 can be detached by reversing the operation, so that the actual use requirement can be met.
As shown in fig. 1, at least two die repairing tables 1 are arranged beside the lifting feeding and discharging mechanism 2. Therefore, the lifting feeding and discharging mechanism 2 can be used for feeding and discharging the dies of the die repairing tables 1, and each die repairing table is not required to be provided with the lifting feeding and discharging mechanism 2, so that the manufacturing and using cost can be reduced.
As shown in fig. 1, the left and right sides of the lifting feeding and discharging mechanism 2 are respectively provided with a die repairing table 1, and the left and right sides of the guide frame 23 are respectively fixed on the two die repairing tables 1. The back wall of the two die repairing tables 1 is provided with an air suction filter cabinet body 11, the two air suction filter cabinet bodies 11 are assembled together, and the back wall of the guide frame 23 is fixedly connected with the two air suction filter cabinet bodies 11. Therefore, dust pollution can be reduced, and the mounting and positioning of the lifting feeding and discharging mechanism 2 can be ensured to be very stable and reliable, so that the reliability of the die repairing device can be further improved.
As shown in fig. 1, the air suction filter cabinet 11 is provided with a movable lighting lamp 12. The movable lighting lamp 12 is a lighting lamp supported by a flexible support 121 in the prior art, and the flexible support 121 can be transversely and slidably clamped on the air suction filter cabinet 11. Therefore, various lighting requirements can be conveniently realized, and the requirements of actual use can be better met.
As shown in fig. 1, the die repairing table 1 is provided with a switch panel 13, a power supply plugboard 14, a storage drawer 15 and a tool inserting frame 16, so that various use requirements of users can be met, and the die repairing device has higher applicability.
Claims (9)
1. The die repairing device with the lifting function is characterized by comprising a die repairing table (1) and a lifting feeding and discharging mechanism (2), wherein the lifting feeding and discharging mechanism (2) is arranged beside or on the side wall of the die repairing table (1), the lifting feeding and discharging mechanism (2) comprises a lifting driving assembly (21) and a bearing plate frame (22), the lifting driving assembly (21) is arranged beside or on the side wall of the die repairing table (1), and the bearing plate frame (22) is arranged at the lifting end of the lifting driving assembly (21).
2. The die repairing device with the lifting function according to claim 1, wherein the lifting loading and unloading mechanism (2) further comprises a guide frame (23), and the bearing plate frame (22) is vertically and slidably arranged on the guide frame (23).
3. The die repairing device with lifting function according to claim 2, wherein the lifting driving assembly (21) comprises a driving cylinder (211), a roller frame (212) and at least one traction chain (213), the roller frame (212) is arranged on the movable end of the driving cylinder (211) and enables the roller frame (212) to be vertically and slidably arranged on the guide frame (23), and two ends of the traction chain (213) are fixedly connected to the guide frame (23) and the support plate frame (22) respectively and enable the traction chain (213) to be wound on the roller frame (212).
4. The die repairing device with lifting function according to claim 3, wherein the guide frame (23) is provided with a mounting cavity (231), the left cavity wall and the right cavity wall of the mounting cavity (231) are respectively provided with a vertical guide groove (232), the roller frame (212) comprises a transverse rod (2121), two chain wheels (2122) and two guide rollers (2123), the middle part of the transverse rod (2121) is connected with the movable end of the driving cylinder (211), the two chain wheels (2122) are radially symmetrically sleeved on the transverse rod (2121) relative to the middle part of the transverse rod (2121), the two guide rollers (2123) are respectively sleeved at the two ends of the transverse rod (2121), the two guide rollers (2123) are respectively embedded in the two vertical guide grooves (232) in a rolling mode, and the two traction chains (213) are respectively wound on the two chain wheels (2122).
5. The die-repairing device with lifting function according to claim 4, wherein at least one guide wheel (220) is respectively arranged on the left and right side walls of the rear end of the bearing plate frame (22), and each guide wheel (220) is respectively embedded in the corresponding vertical guide groove (232) in a rolling manner.
6. The die repairing device with lifting function according to claim 3, wherein the supporting plate frame (22) comprises a supporting plate (221) and a transverse bar (222), a reinforcing baffle frame (223) is arranged at the rear end of the supporting plate (221), the reinforcing baffle frame (223) is fixedly connected with the traction chain (213), and the transverse bar (222) is detachably arranged on the upper front wall of the supporting plate (221).
7. The die repairing device with the lifting function according to claim 1 is characterized in that a die repairing bench clamp (3) is arranged at the top of the die repairing table (1).
8. The die repairing device with the lifting function according to claim 7 is characterized in that a transition bracket (4) is arranged on the die repairing table (1) between the die repairing bench clamp (3) and the lifting loading and unloading mechanism (2).
9. The die repairing device with the lifting function according to claim 1 is characterized in that at least two die repairing tables (1) are arranged beside the lifting feeding and discharging mechanism (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323389808.7U CN222200441U (en) | 2023-12-13 | 2023-12-13 | Die repairing device with lifting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323389808.7U CN222200441U (en) | 2023-12-13 | 2023-12-13 | Die repairing device with lifting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222200441U true CN222200441U (en) | 2024-12-20 |
Family
ID=93870997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323389808.7U Active CN222200441U (en) | 2023-12-13 | 2023-12-13 | Die repairing device with lifting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222200441U (en) |
-
2023
- 2023-12-13 CN CN202323389808.7U patent/CN222200441U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111824655A (en) | A four-column lifting mold changing trolley and its automatic mold changing storage system | |
| CN104150405B (en) | A kind of pallet fork and the fork truck using this pallet fork | |
| CN112978630A (en) | Forklift portal frame | |
| CN216126532U (en) | Die changing structure of horizontal casting machine | |
| CN216990775U (en) | Motor stator assembly stand | |
| CN212577228U (en) | Support frame for plate bending machine | |
| CN211915419U (en) | Sand box pushing mechanism | |
| CN116394393B (en) | Drying rack dispatching system for production of dismantling-free templates | |
| CN111923217A (en) | Large-scale pottery cylinder blank demoulding lifting platform and use method | |
| CN214561837U (en) | A kind of turning device for tunnel segment | |
| CN212385674U (en) | Large-scale pottery jar idiosome drawing of patterns lift platform | |
| CN218345085U (en) | Movable lifting platform convenient to unload | |
| CN211915418U (en) | Molding machine with sand box pushing mechanism | |
| CN219769972U (en) | Mobile platform handling device | |
| CN221565109U (en) | A feeding device for strip steel | |
| CN221540500U (en) | Injection mold capable of being quickly replaced and positioned | |
| CN219217485U (en) | Portable supplementary elevating platform | |
| CN217457414U (en) | Automatic feeding mechanism for cement pouring mold production line | |
| CN220945837U (en) | Timber stamping device is used in furniture production | |
| CN220260975U (en) | Casting safety placing frame | |
| CN219791183U (en) | Building material stores frame | |
| CN106394636B (en) | A tooling truck | |
| CN218345090U (en) | Fixed lift platform of cartridge | |
| CN217173180U (en) | Movable electric control lifting platform | |
| CN112172970A (en) | Large-tonnage crane press-fitting corner box and wheel flexible assembly line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |