CN120347129A - Quick die change locking mechanism for connector stamping and stamping die thereof - Google Patents
Quick die change locking mechanism for connector stamping and stamping die thereofInfo
- Publication number
- CN120347129A CN120347129A CN202510749360.XA CN202510749360A CN120347129A CN 120347129 A CN120347129 A CN 120347129A CN 202510749360 A CN202510749360 A CN 202510749360A CN 120347129 A CN120347129 A CN 120347129A
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- push rod
- stamping
- loading
- quick
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/14—Particular arrangements for handling and holding in place complete dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
本发明涉及加工模具技术领域，尤其为一种连接器冲压快速换模锁紧机构及其冲压模具，其中连接器冲压快速换模锁紧机构包括：上模座和下模座，下模座中设置有下模芯，其特征在于，上模座和下模座上设置有：导向组件，导向组件用于在冲压时对上模座和下模座进行导向；预紧组件，预紧组件包括加载装置和卡接装置；冲压紧固组件，冲压紧固组件包括对接触发装置和液压加固装置；快拆组件，快拆组件包括按压装置、液压油输送装置和分离装置；本申请在进行冲压时通过对接触发装置开启液压加固装置，通过动态加固的方式加强卡接装置对模芯的固定，并且在进行分离时利用液压加固装置中排出的液压油加快分离速度，使换模的速度更快。
The present invention relates to the technical field of processing molds, and in particular to a connector stamping quick mold change locking mechanism and its stamping mold, wherein the connector stamping quick mold change locking mechanism comprises: an upper mold base and a lower mold base, a lower mold core is arranged in the lower mold base, and is characterized in that the upper mold base and the lower mold base are provided with: a guide assembly, the guide assembly is used to guide the upper mold base and the lower mold base during stamping; a pre-tightening assembly, the pre-tightening assembly comprises a loading device and a clamping device; a stamping fastening assembly, the stamping fastening assembly comprises a docking trigger device and a hydraulic reinforcement device; a quick-release assembly, the quick-release assembly comprises a pressing device, a hydraulic oil conveying device and a separation device; the present application opens the hydraulic reinforcement device through the docking trigger device during stamping, strengthens the fixation of the clamping device to the mold core by means of dynamic reinforcement, and uses the hydraulic oil discharged from the hydraulic reinforcement device to accelerate the separation speed during separation, so as to make the mold change faster.
Description
Technical Field
The invention relates to the technical field of processing dies, in particular to a connector stamping quick die change locking mechanism and a stamping die thereof.
Background
The stamping die comprises an upper die holder and a lower die holder, the upper die holder is connected with an upper die core, the lower die holder is connected with a lower die core, the lower die holder and the lower die core are kept fixed during stamping, and the upper die core in the upper die holder is driven by a stamping push rod to approach the lower die core to complete die assembly.
In the field of connector stamping forming, along with the shortening of the iteration cycle of a product and the rapid increase of the requirements of small-batch production of multiple varieties, the traditional die replacement mode cannot meet the high-efficiency manufacturing requirement, the traditional stamping die is usually carried out in a manual bolt locking mode in the die core replacement process, a large amount of time and cost are required, and the problems of locking screw tooth failure and the like are easy to occur after long-time and high-strength work.
Disclosure of Invention
The invention aims to provide a connector stamping quick die change locking mechanism and a stamping die thereof, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
On one hand, the quick die change locking mechanism for connector stamping comprises an upper die holder and a lower die holder, wherein a lower die core is arranged in the lower die holder, and the upper die holder and the lower die holder are provided with a die cavity;
The guide assembly is used for guiding the upper die holder and the lower die holder during stamping;
The pre-tightening assembly is arranged on the lower die holder and comprises a loading device and a clamping device, and the loading device is used for driving the clamping device to clamp the lower die core;
The stamping fastening assembly comprises a butt joint triggering device and a hydraulic reinforcing device, wherein the butt joint triggering device is used for triggering and starting the hydraulic reinforcing device when the upper die holder and the lower die holder are stamped, and the hydraulic reinforcing device is used for further fixing the clamping device through hydraulic pressure;
The quick detach subassembly, quick detach subassembly includes press device, hydraulic oil conveyor and separator, through pressing press device is used for starting hydraulic oil conveyor, hydraulic oil conveyor is arranged in with the hydraulic oil input in the hydraulic pressure reinforcing apparatus separator, separator is arranged in with joint device and lower mold core mutual separation.
Preferably, the guide assembly comprises a guide post and a guide seat, the upper die holder is provided with the guide post, the lower die holder is provided with the guide seat, and the guide post is inserted into the guide seat when stamping is performed.
Preferably, the loading device comprises a loading motor, a loading screw and a loading block, wherein the loading motor is used for driving the loading screw to rotate, the loading block is connected with the loading screw, and the loading block is driven to move when the loading screw rotates.
Preferably, the clamping device is arranged on the loading block, the clamping device comprises a clamping block, the clamping block is of an L-shaped structure, and the clamping block is fixedly connected with the loading block.
Preferably, the docking triggering device comprises a triggering block and a pressure sensor, wherein the triggering block is arranged on the guide post, the pressure sensor is arranged inside the guide seat, and when the guide post is inserted into the bottom of the guide seat, the triggering block presses the pressure sensor.
Preferably, the mounting groove has been seted up to the die holder, be provided with the installation piece in the mounting groove, the loading motor set up in the installation piece, loading piece sliding connection in the installation piece, hydraulic reinforcement device includes hydraulic push rod, hydraulic cylinder, hydraulic pressure sensor and electromagnetic valve one, hydraulic push rod both ends connect respectively in the loading piece with the installation piece, when pressure sensor senses pressure hydraulic cylinder can with hydraulic oil input in the hydraulic push rod, hydraulic pressure sensor set up in hydraulic push rod with hydraulic cylinder internal connection department, hydraulic pressure sensor is used for right the inside pressure of hydraulic push rod detects, electromagnetic valve one is used for controlling hydraulic push rod with hydraulic cylinder's intercommunication.
Preferably, the pressing device comprises an unlocking switch, the unlocking switch is arranged on the lower die holder, and the unlocking switch is pressed to open the hydraulic oil conveying device.
Preferably, the hydraulic oil conveying device comprises a connecting rod, a gas compression piston, a compression cylinder, a pneumatic push rod, an extrusion piston and a pressure release valve, wherein the gas compression piston is connected to the guide post through the connecting rod, the gas compression piston is movably connected to the compression cylinder, compressed gas in the compression cylinder is input into the pneumatic push rod through a hose, the pneumatic push rod is arranged in the hydraulic cylinder, the motion end of the pneumatic push rod is connected with the extrusion piston, the pressure release valve is connected to the pneumatic push rod, and when the air pressure in the pneumatic push rod exceeds the safety threshold of the pneumatic push rod, the pressure release valve is opened to release redundant air in the pneumatic push rod.
Preferably, the separation device comprises a separation push rod, a vane pump and a second electromagnetic reversing valve, the separation push rod is mutually communicated with the hydraulic cylinder through the second electromagnetic reversing valve, the vane pump is connected with the separation push rod, the vane pump is used for pumping hydraulic oil in the hydraulic cylinder into the separation push rod, and two ends of the separation push rod are respectively connected with the mounting block and the mounting groove.
On the other hand, a stamping die is provided, and the stamping die comprises the connector stamping quick die-changing locking mechanism.
Compared with the prior art, the hydraulic pressure reinforcing device is started through the butt joint triggering device when stamping is carried out, the clamping device is reinforced to fix the die core through a dynamic reinforcing mode, enough fastening effect can be continuously ensured in the stamping process, the problem of micro offset of the die core caused by vibration and impact force is solved, stamping precision is ensured, hydraulic oil discharged from the hydraulic pressure reinforcing device is utilized to accelerate the separation speed when separating, the die changing speed is higher, hydraulic oil (reinforcing during stamping and driving during separating) is utilized in multiple dimensions, production downtime is reduced, multi-angle optimization such as efficiency, safety and the like is realized through hydraulic energy utilization (reinforcing/driving during stamping), and the hydraulic pressure reinforcing/separating device is particularly suitable for precise stamping scenes of connectors with high requirements on production flexibility, precision and reliability.
Drawings
FIG. 1 is a schematic diagram of an axial structure of the present invention;
FIG. 2 is a schematic diagram of an axial view structure II (perspective treatment is performed on a part of the structure of the lower die holder);
FIG. 3 is a schematic diagram of an axial structure of the present invention;
FIG. 4 is a schematic view of the connection structure of the guide post and the gas compression piston of the present invention;
FIG. 5 is a schematic view of the position structure of the guide seat and compression cylinder of the present invention;
FIG. 6 is a schematic view of the mounting block and load motor position configuration of the present invention;
FIG. 7 is a schematic view of the mounting block and separate pushrod location configuration of the present invention;
FIG. 8 is a schematic view of the internal structure of the mounting block of the present invention;
FIG. 9 is a schematic view of the connection structure of the components of the hydraulic reinforcement device of the present invention;
Fig. 10 is a schematic view of the internal structure of the hydraulic cylinder according to the present invention.
In the drawing, an upper die holder 1, a lower die holder 2, a lower die core 3, a guide post 4, a guide seat 5, a loading motor 6, a loading screw rod 7, a loading block 8, a clamping block 9, a triggering block 10, a pressure sensor 11, a mounting block 12, a hydraulic push rod 13, a hydraulic cylinder 14, a hydraulic sensor 15, a first 16 electromagnetic reversing valve 17, an unlocking switch 18, a connecting rod 19, a gas compression piston 20, a compression cylinder 21, a pneumatic push rod 22, a compression piston 23, a pressure release valve 24, a separation push rod 24, a 25 vane pump 26, a second 26 electromagnetic reversing valve 201 and a mounting groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-10, the present invention provides a technical solution:
The utility model provides a quick die change locking mechanism of connector punching press, as the description figure 1 shows, includes upper die base 1 and die holder 2, is provided with die core 3 in the die holder 2, and die holder 2 is used for installing die core 3 down:
the guide assembly is used for guiding the upper die holder 1 and the lower die holder 2 during stamping;
The pre-tightening assembly is arranged on the lower die holder 2 and comprises a loading device and a clamping device, and the loading device is used for driving the clamping device to clamp the lower die core 3;
the stamping fastening assembly comprises a butt joint triggering device and a hydraulic reinforcing device, wherein the butt joint triggering device is used for triggering and starting the hydraulic reinforcing device when the upper die holder 1 and the lower die holder 2 are stamped, and the hydraulic reinforcing device is used for further fixing the clamping device through hydraulic pressure;
The quick detach subassembly, quick detach subassembly include press device, hydraulic oil conveyor and separator, are used for starting hydraulic oil conveyor through pressing press device, and hydraulic oil conveyor is arranged in with the hydraulic oil input separator in the hydraulic pressure reinforcing apparatus, and separator is arranged in with joint device and lower mold core 3 mutual separation.
The guide assembly comprises a guide post 4 and a guide seat 5, the guide post 4 is fixedly connected to the upper die holder 1, the guide seat 5 is fixedly connected to the lower die holder 2, and the guide assembly is arranged in the guide post 4 to be inserted into the guide seat 5 during punching.
The loading device comprises a loading motor 6, a loading screw rod 7 and a loading block 8, wherein the loading motor 6 is a servo motor, so that the rotation angle of the loading motor can be accurately controlled, the loading motor 6 is used for driving the loading screw rod 7 to rotate, the loading block 8 and the loading screw rod 7 are connected with each other, and the loading block 8 is driven to move along the mounting groove 201 when the loading screw rod 7 rotates.
The clamping device is arranged on the loading block 8, the clamping device comprises a clamping block 9, the clamping block 9 is used for clamping the lower die core 3 of the lower die holder 2, the clamping block 9 is of an L-shaped structure, the clamping block 9 is fixedly connected to the loading block 8, rubber buffer blocks are arranged at contact positions of the clamping block 9 and the lower die core 3, the rubber buffer blocks are connected with the clamping block 9, the rubber buffer blocks are used for reducing abrasion of the lower die core 3 caused by direct contact between the clamping block 9 and the lower die core 3, and accordingly the service life of the lower die core 3 is prolonged.
The butt joint trigger device includes trigger piece 10 and pressure sensor 11, and trigger piece 10 fixed connection guide post 4 keeps away from the one end of upper die base 1, and pressure sensor 11 sets up inside guide holder 5, and pressure sensor 11 is used for detecting the position of trigger piece 10, and when guide post 4 can insert the guide holder 5 bottom, trigger piece 10 can press pressure sensor 11, and hydraulic reinforcement device can carry out hydraulic reinforcement to loading piece 8 this moment.
The lower die holder 2 is provided with a mounting groove 201, the mounting groove 201 is used for mounting the mounting block 12, the mounting groove 201 is also used for limiting the movement direction of the loading block 8, the mounting groove 201 is internally provided with the mounting block 12, the loading motor 6 is arranged on the mounting block 12, the loading block 8 is slidably connected to the mounting block 12, the hydraulic reinforcement device comprises a hydraulic push rod 13, a hydraulic cylinder 14, a hydraulic sensor 15 and an electromagnetic directional valve I16, two ends of the hydraulic push rod 13 are respectively connected to the loading block 8 and the mounting block 12, when no hydraulic oil exists in the hydraulic push rod 13, the hydraulic push rod 13 is in a free movement state, at the moment, the hydraulic push rod 13 does not support the loading block 8, the hydraulic push rod 13 is provided with a gas discharge valve, only gas flow is allowed to pass through, the gas discharge valve is used for adjusting the gas pressure in the hydraulic push rod 13 when the free movement state of the hydraulic push rod 13, the gas discharge valve is in the prior art, the model is purchased according to actual conditions, when the pressure sensor 11 senses the pressure, the hydraulic cylinder 14 inputs hydraulic oil into the hydraulic push rod 13 through the electromagnetic directional valve I16, the hydraulic sensor 15 is arranged at the connection position of the hydraulic push rod 13, the hydraulic pressure 13 is used for detecting the pressure inside the hydraulic sensor 15, the hydraulic pressure inside the hydraulic push rod 13 is controlled by the electromagnetic directional valve I16, and the hydraulic pressure of the electromagnetic directional valve I is used for controlling the direction of the hydraulic push rod 13.
The pressing device comprises an unlocking switch 17, the unlocking switch 17 is a self-resetting switch with a Bluetooth function, the unlocking switch 17 is arranged on the lower die holder 2, and the unlocking switch 17 is pressed to be used for starting the hydraulic oil conveying device.
The hydraulic oil conveying device comprises a connecting rod 18, a gas compression piston 19, a compression cylinder 20, a pneumatic push rod 21, an extrusion piston 22 and a pressure relief valve 23, wherein the gas compression piston 19 is connected to the guide post 4 through the connecting rod 18, the gas compression piston 19 is movably connected to the compression cylinder 20, therefore, when the guide post 4 moves, the gas compression piston 19 moves along the compression cylinder 20, compressed gas in the compression cylinder 20 is input into the pneumatic push rod 21 through a hose, the pneumatic push rod 21 is arranged in the hydraulic cylinder 14, the extrusion piston 22 is connected to the moving end of the pneumatic push rod 21, the pressure relief valve 23 is connected to the pneumatic push rod 21, and when the air pressure in the pneumatic push rod 21 exceeds the safety threshold of the pneumatic push rod 21, the pressure relief valve 23 is opened to release redundant air in the pneumatic push rod 21.
The separating device comprises a separating push rod 24, a vane pump 25 and a second electromagnetic directional valve 26, the separating push rod 24 is mutually communicated with the hydraulic cylinder 14 through the second electromagnetic directional valve 26, the vane pump 25 is connected with the separating push rod 24, the vane pump 25 is used for pumping hydraulic oil in the hydraulic cylinder 14 into the separating push rod 24, and two ends of the separating push rod 24 are respectively connected with the mounting block 12 and the mounting groove 201.
The working principle is that when the die is used, the loading motor 6 drives the loading screw rod 7 to move, and when the loading screw rod 7 moves, the loading block 8 drives the clamping block 9 to clamp and fix the lower die core 3 on the lower die holder 2 in multiple directions;
In the stamping process, the guide post 4 is inserted into the guide seat 5, when the guide post 4 is inserted into the bottom of the guide seat 5, the trigger block 10 presses the pressure sensor 11, the first electromagnetic directional valve 16 is opened (in the reciprocating process of the guide post 4 inserted into the guide seat 5, the connecting rod 18 drives the gas compression piston 19 to move along the compression cylinder 20, compressed gas in the compression cylinder 20 is input into the pneumatic push rod 21 through a hose, the extrusion piston 22 inputs hydraulic oil into the hydraulic push rod 13 under the driving of the pneumatic push rod 21), and the hydraulic oil in the hydraulic push rod 13 is increased by continuously stamping, so that the loading block 8 is supported, the problem that the loading block 8 is deviated due to mechanical vibration and the like after long-time use is solved, and when the hydraulic sensor 15 detects that the hydraulic pressure in the hydraulic push rod 13 is too high, the first electromagnetic directional valve 16 is closed;
when the lower die core 3 needs to be replaced, the unlocking switch 17 is pressed, the loading motor 6 drives the clamping block 9 to be far away from the lower die core 3, meanwhile, the first electromagnetic directional valve 16 switches the flow direction (hydraulic oil can only flow into the hydraulic oil cylinder 14 from the hydraulic push rod 13 in one direction), the vane pump 25 pumps the hydraulic oil into the separating push rod 24, and the mounting block 12 is jacked up when the separating push rod 24 stretches so as to quickly separate the lower die core 3 from the clamping block 9;
After the separation is completed, the loading block 8 drives the hydraulic push rod 13 to continue to move until the hydraulic push rod 13 is in a compressed state, the pressure release valve 23 is fully opened, air in the pneumatic push rod 21 is completely discharged, the electromagnetic directional valve II 26 is opened (hydraulic oil can enter the hydraulic oil cylinder 14 through the separation push rod 24), and at the moment, the hydraulic oil returns to the hydraulic oil cylinder 14 from the hydraulic push rod 13 and the separation push rod 24.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510749360.XA CN120347129A (en) | 2025-06-06 | 2025-06-06 | Quick die change locking mechanism for connector stamping and stamping die thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510749360.XA CN120347129A (en) | 2025-06-06 | 2025-06-06 | Quick die change locking mechanism for connector stamping and stamping die thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN120347129A true CN120347129A (en) | 2025-07-22 |
Family
ID=96403717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510749360.XA Pending CN120347129A (en) | 2025-06-06 | 2025-06-06 | Quick die change locking mechanism for connector stamping and stamping die thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN120347129A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120715116A (en) * | 2025-08-27 | 2025-09-30 | 合肥和宇精工科技有限公司 | A quick die-changing device for metal stamping parts production |
-
2025
- 2025-06-06 CN CN202510749360.XA patent/CN120347129A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120715116A (en) * | 2025-08-27 | 2025-09-30 | 合肥和宇精工科技有限公司 | A quick die-changing device for metal stamping parts production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7165437B2 (en) | Mechanical press device | |
| CN210097031U (en) | Compact type efficient filter press | |
| CN110789063B (en) | Mold replacing device | |
| CN101594946B (en) | Stretch pad unit with hybrid drive | |
| CN1293957C (en) | Short path aluminium extrusion machine front feeding system and its gripping pliers type adaptive ingot supply device | |
| CN108787868A (en) | Bull huge discharge screw pump stator with equal wall thickness is manufactured equipment and its moulding process | |
| CN212190858U (en) | A locking mechanism and a bending die quick clamping system including the same | |
| US8438892B2 (en) | Stem slide device | |
| CN201205750Y (en) | Mold-lockikng mechanism of injection mold machine | |
| CN219910441U (en) | Tail gate stay bar spring structure | |
| CN219820718U (en) | Multistation unbalanced load press | |
| CN215150986U (en) | Split type mould convenient to dismouting | |
| CN112775649B (en) | Oil bag press | |
| CN224055446U (en) | Purely-driven shoemaking hydraulic press | |
| CN217571577U (en) | Welding positioning mechanism based on automobile manufacturing parts | |
| CN110625385B (en) | Assembling machine for cleaning pipe joint | |
| CN115647214A (en) | Lifting rotary type clamping device | |
| CN1974200A (en) | Proportionally controlled hydraulic system for precise powder forming hydraulic press | |
| CN210816948U (en) | Rotary movable type section steel punching device | |
| CN110193550B (en) | A rotating and movable steel punching device | |
| CN202158123U (en) | Servo-actuated expanding brake type power-off brake apparatus | |
| CN215544465U (en) | Flexible pipe joint clamp steel belt forming equipment | |
| CN113246412B (en) | A rotating separation device | |
| CN224060276U (en) | Full-electric-driven multifunctional shoemaking forming machine | |
| CN223185390U (en) | A trimming die for processing automobile sunroof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |