CN113198896A - Punch forming process for medical tray - Google Patents
Punch forming process for medical tray Download PDFInfo
- Publication number
- CN113198896A CN113198896A CN202110521484.4A CN202110521484A CN113198896A CN 113198896 A CN113198896 A CN 113198896A CN 202110521484 A CN202110521484 A CN 202110521484A CN 113198896 A CN113198896 A CN 113198896A
- Authority
- CN
- China
- Prior art keywords
- shaping
- stamping
- sliding
- tray
- clamping
- 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
- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000008569 process Effects 0.000 title claims abstract description 33
- 238000007493 shaping process Methods 0.000 claims abstract description 170
- 238000004080 punching Methods 0.000 claims abstract description 94
- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 230000007306 turnover Effects 0.000 claims description 6
- 239000013013 elastic material Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 241000252254 Catostomidae Species 0.000 claims 2
- 238000009499 grossing Methods 0.000 abstract description 20
- 238000005452 bending Methods 0.000 abstract description 6
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 230000001360 synchronised effect Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 238000011084 recovery Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
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
- 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
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- 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
- B21D37/16—Heating or cooling
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- 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
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
- B21D45/04—Ejecting devices interrelated with motion of tool
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The invention relates to a punch forming process for a medical tray, which uses a punch forming device for a low medical tray, the medical tray punch forming device comprises an installation bottom plate, supporting legs, a punching mechanism, a smoothing mechanism and a shaping mechanism, and the invention can solve the problem that in the process of punch forming of the medical tray, it is difficult to adsorb to tray panel tightly, avoid tray panel to take place the displacement slip phenomenon when the punching press, also be difficult to the tray after the punching press heat, make the tray stereotype fast, be difficult to carry out synchronous support operation to the edge all around of tray and upper end after the punching press, avoid the tray to take place the slope and bounce the phenomenon when carrying out elastic recovery after the punching press, also be difficult to carry out the clamping location in step to the both sides of arcwall face bending position on the tray, further eliminate surface tension on the tray disk body, reduce the possibility scheduling problem that the tray material takes place to kick-back.
Description
Technical Field
The invention relates to the technical field of punch forming, in particular to a punch forming process for a medical tray.
Background
Medical tray is medical instrument commonly used, and common medical tray often is the rectangle shape, mainly used places medical instrument and medicine, and medical tray often is sheet metal and makes through stamping forming's method, and medical tray is carrying out stamping forming's in-process, often can have following problem:
1) medical tray is carrying out stamping forming's in-process, be difficult to adsorb the location to tray panel, avoid tray panel to take place the displacement slip phenomenon when the punching press, also be difficult to lean on the tray panel of punching press regional edge position department to press tightly at the in-process of punching press, avoid tray panel's edge position department to take place fold deformation, the tray after more difficult to the punching press heats, make the tray carry out quick design, reduce the follow-up possibility of taking out the in-process and taking place to kick-back of tray.
2) Medical tray is at the in-process that carries out the punching press operation, be difficult to carry out synchronous support operation to the edge all around of tray and upper end, avoid the tray to take place to incline and bounce the phenomenon when carrying out elastic recovery after the punching press, also be difficult to carry out the tight location of clamp in step to the both sides of arcwall face bending position on the tray, further eliminate surface tension on the tray disk body, promote the operating efficiency of tray design operation and the stability when finalizing the design, reduce the possibility that the tray material takes place to kick-back.
Disclosure of Invention
In order to solve the problems, the invention provides a punch forming process for a medical tray, which can solve the problems in the background art.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose: the utility model provides a medical tray stamping forming technology, its used a medical tray stamping forming device, this medical tray stamping forming device includes mounting plate, supporting legs, punching press mechanism, smooths mechanism and typical mechanism, adopts above-mentioned medical tray stamping forming device to medical tray stamping forming operation during concrete technology as follows:
s1, placing the plates: firstly, manually placing a tray plate to be subjected to punch forming into a punching mechanism, and checking the integral operation state of equipment;
s2, stamping forming: performing punch forming operation on the medical tray through the punching mechanism, and pressing and smoothing the tray plates around the punching position through the smoothing mechanism in the punching process;
s3, shaping and pressure maintaining: after the step S2 is finished, further shaping and pressure maintaining operations are carried out on the medical tray through a shaping mechanism;
s4, taking out and collecting: after the step S3 is finished, ejecting the shaped medical tray through a punching mechanism, and manually carrying out further collection operation;
supporting legs are uniformly arranged at the corners around the lower end of the mounting bottom plate, a stamping mechanism is arranged at the upper end of the mounting bottom plate, a flattening mechanism is arranged on the stamping mechanism, a shaping mechanism is arranged and rotated in the stamping mechanism, and the shaping mechanism is positioned below the flattening mechanism;
the punching press mechanism include the punching press base, the punching press notch, Contraband type frame, the punching press slide bar, the punching press slide, the punching press cylinder, support cylinder and support balladeur train, Contraband type frame that the opening is decurrent is installed to mounting plate's upper end, install multiunit punching press slide bar between Contraband type frame and the mounting plate, install the punching press slide bar through sliding fit's mode on the punching press slide bar, install the punching press cylinder on the Contraband type frame, and the output shaft of punching press cylinder is connected with the punching press slide bar, install the punching press slide on the punching press slide bar, install the punching press base on the mounting plate that lies in punching press slide base below, the middle part of punching press base is seted up and is stamped the punching press notch with punching press slide base outer wall matched with, install the support balladeur train through sliding fit's mode in the punching press notch, install the support cylinder in the punching press base, and the output shaft of support cylinder is connected with the support balladeur train, the tray plate can be further subjected to punch forming operation through sliding fit between the punching base and the punching slide seat.
Furthermore, the flattening mechanism comprises flattening sliding frames, flattening springs, flattening rotating shafts, heaters, heating grooves, heat conducting holes and balls, a plurality of groups of flattening sliding frames are arranged on the stamping sliding plate positioned on the outer side of the stamping sliding seat in a sliding fit mode, the flattening sliding frames are connected with the stamping sliding plate through the flattening springs, the flattening rotating shafts are uniformly arranged between the flattening sliding frames in the same group in a rotating fit mode, a plurality of groups of heating grooves are uniformly formed in the circumferential direction of the side wall of the stamping sliding seat, the heaters are arranged at the upper end of the stamping sliding seat and communicated with the heating grooves through the heat conducting holes, a plurality of groups of balls are uniformly arranged on the stamping base positioned on the outer side of the stamping notch in a rotating fit mode, the arranged flattening rotating shafts can be tightly abutted against the peripheral outer wall of the tray plate under the pushing of the flattening springs, and the clamping operation of the tray plate is realized, promote tray panel at the punching press slide and carry out the in-process of punching press, can further support to leaning on tightly to the tray panel of punching press regional edge position department through the two-way extrusion effect of smoothing pivot and ball, avoid the edge position department of tray panel to take place fold deformation phenomenon, the efficiency of heat transfer in the heater can further be promoted through the heating tank of circumference setting, and with the even dispersion of heat to the edge all around of tray, the tray after the punching press heats, can make the quick design of going on of ability behind the tray punching press, reduce the follow-up possibility of taking out the in-process and taking place to kick-back of tray.
Further, the shaping mechanism comprises a shaping rotating shaft, helical gears, a shaping connecting rod, a shaping cylinder, a shaping cam, shaping chutes, a shaping sliding frame, a shaping sliding barrel, a shaping seat, a lifting cylinder, a shaping spring, a compression spring, a turnover connecting rod and a clamping unit, wherein a plurality of groups of shaping chutes are uniformly arranged on the stamping base positioned at the outer side of the stamping notch, a plurality of groups of shaping carriages are arranged in the shaping chutes in a sliding fit manner, the shaping carriages are connected with the stamping base through the shaping spring, a plurality of groups of shaping rotating shafts are arranged in the stamping base positioned below the shaping carriages in a rotating fit manner, a plurality of groups of helical gears are uniformly arranged on the shaping rotating shafts through splines, the helical gears between two adjacent groups of shaping rotating shafts are mutually meshed for transmission, a plurality of groups of shaping cams are uniformly arranged on the shaping rotating shafts positioned in the shaping chutes through the splines, and the shaping cams are abutted against the shaping carriages in a sliding fit manner, the utility model discloses a hydraulic press forming device, including a setting rotary shaft, a mounting plate, a fixing seat, a fixing sliding frame, a lifting air cylinder, a clamping unit, a fixing connecting rod, a fixing cylinder, a fixing sliding frame, a compression spring, a lifting air cylinder, a clamping unit and a pressing base.
Furthermore, the clamping unit comprises a clamping notch, a fixed shaft, a clamping sliding frame, a connecting rope, a clamping jaw, a clamping spring and a clamping rotating shaft, the upper end of the stamping base is provided with the clamping notch, a plurality of groups of fixed shafts are uniformly arranged at the corners around the clamping notch through bearings, the outer wall of the stamping base is provided with the clamping rotating shaft through the bearings, the clamping rotating shaft is provided with the connecting rope, the other end of the connecting rope is arranged in the clamping notch, the connecting rope is abutted against the side wall of the fixed shaft in a sliding fit manner, a plurality of groups of clamping sliding frames are arranged in the clamping notch between the same group of fixed shafts in a sliding fit manner, the clamping sliding frame is connected with the stamping base through the clamping spring, the connecting rope is abutted against the clamping sliding frame in a sliding fit manner, the clamping jaws are symmetrically arranged on the clamping sliding frame in a rotating fit manner, and are connected with the clamping sliding frame through torsion springs, the clamping jaws installed in a hinged mode can be used for synchronously clamping and positioning two sides of the bending position of the arc-shaped surface on the tray.
Furthermore, the shaping seat on evenly be provided with elastic material's toper piece, the toper piece that sets up on the shaping seat can compress tightly the location to the lateral wall upper end of tray, through carrying out synchronous support operation to the edge all around of tray and upper end, can further fix a position the tray in punching the intraoral position of notch.
Furthermore, the side wall of the shaping sliding cylinder is provided with a supporting block, the supporting block is positioned below the shaping seat, and the supporting block can circumferentially support the edge side wall of the tray.
Further, the centre gripping pivot on install spacing dish through the spline, spacing groove has evenly been seted up along its circumference on the spacing dish, installs the stopper on the punching press base, the stopper supports at the spacing inslot for elastic construction and stopper through sliding fit's mode, can further realize carrying on spacing fixedly to the position of centre gripping pivot through the joint cooperation between stopper and the spacing groove.
Further, the support balladeur train on evenly be provided with the multiunit sucking disc, and lie in and evenly seted up anti-skidding line on the support balladeur train between adjacent two sets of sucking discs, set up the sucking disc on the support balladeur train and can realize the absorption location operation to tray panel, set up the contact friction between sucking disc anti-skidding line all around can further strengthen support balladeur train and the tray panel, further avoid tray panel to take place the displacement slip phenomenon.
Further, the clamping jaw be connected and evenly be provided with the elasticity post on the clamping jaw through torsional spring and centre gripping balladeur train, the elasticity post that sets up on the clamping jaw can avoid causing the clamp to hinder to the outer wall of tray when contact friction between increase clamping jaw and tray, further promotes the stability of centre gripping location operation.
Furthermore, the height of the lower end of the leveling rotating shaft is lower than that of the lower end of the stamping sliding seat.
The invention has the beneficial effects that:
1. according to the stamping mechanism provided by the invention, the sucking discs arranged on the supporting sliding frame can realize the adsorption positioning operation on the tray plate, the anti-slip lines arranged on the periphery of the sucking discs can further enhance the contact friction force between the supporting sliding frame and the tray plate, the displacement sliding phenomenon of the tray plate is further avoided, the primary positioning of the tray plate is realized, and the stamping forming operation can be further carried out on the tray plate through the sliding fit between the stamping base and the stamping sliding seat.
2. The smoothing rotating shaft of the smoothing mechanism provided by the invention can be tightly abutted against the peripheral outer wall of the tray plate under the pushing of the smoothing spring to realize the clamping operation of the tray plate, in the process of pushing the tray plate to punch by the punching slide seat, the tray plate at the edge position of the punching area can be further abutted and clamped by the two-way extrusion action of the smoothing rotating shaft and the balls, the phenomenon of fold deformation at the edge position of the tray plate is avoided, the smoothness of the periphery of the punching part in the process of forming the tray is further improved, the efficiency of heat transfer in the heater can be further improved through the heating grooves arranged in the circumferential direction, the heat is uniformly dispersed to the peripheral edge of the tray and is heated through the punched tray, can make the tray can be quick after the punching press stereotype, reduce the follow-up possibility of taking out the emergence resilience of in-process of tray.
3. According to the shaping mechanism provided by the invention, the supporting block can circumferentially support the edge side wall of the tray, the conical block arranged on the shaping seat can compress and position the upper end of the side wall of the tray, the position of the tray in the punching notch can be further positioned by synchronously supporting the peripheral edge and the upper end of the tray, the tray is prevented from inclining and bouncing when being elastically restored due to insufficient suction force of the sucking disc, the operation efficiency of the tray shaping operation and the stability during shaping are further improved, the two sides of the arc-shaped surface bending position on the tray can be synchronously clamped and positioned by the clamping jaws which are hinged, the elastic columns arranged on the clamping jaws can increase the contact friction force between the clamping jaws and the tray, the clamping damage to the outer wall of the tray is avoided, the stability of the clamping and positioning operation is further improved, and the tray can be further improved by synchronously clamping and limiting the arc-shaped side wall of the tray The working efficiency of the model operation reduces the possibility of the tray material rebounding.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a front view of the overall structure of the present invention;
FIG. 3 is a first schematic cross-sectional view of the present invention;
FIG. 4 is a second cross-sectional schematic view of the present invention;
FIG. 5 is a third schematic cross-sectional view of the present invention;
FIG. 6 is an enlarged schematic view taken at A of FIG. 3 in accordance with the present invention;
FIG. 7 is an enlarged schematic view at B of FIG. 4 in accordance with the present invention;
FIG. 8 is a schematic view of a partial perspective of the stamping mechanism of the present invention;
FIG. 9 is a partial perspective view of the smoothing mechanism of the present invention;
fig. 10 is a partial perspective view of the medical tray to be worked on according to the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments, it being understood that the specific embodiments described herein are only for the purpose of explaining the present invention and are not intended to limit the present invention.
Referring to 1-10, the medical tray punch forming process uses a medical tray punch forming device, the medical tray punch forming device comprises an installation bottom plate 1, supporting legs 2, a punching mechanism 3, a flattening mechanism 4 and a shaping mechanism 5, and the medical tray punch forming process comprises the following specific processes when the medical tray punch forming device is adopted for punch forming operation of a medical tray:
s1, placing the plates: manually placing a tray plate to be subjected to punch forming on the punching base 3a, centering and aligning the tray plate, then pushing the supporting sliding frame 3j to move upwards through the supporting cylinder 3h, enabling the sucker arranged on the supporting sliding frame 3j to abut against the side wall of the tray plate and adsorb the tray plate, and further achieving primary positioning of the tray plate;
s2, stamping forming: the stamping sliding plate 3e is pushed by the stamping cylinder 3g to slide downwards along the stamping sliding rod 3d, the stamping sliding seat 3f and the smoothing sliding seat 4a are further driven to slide downwards, the height of the lower end position of the smoothing rotating shaft 4c is lower than that of the lower end position of the stamping sliding seat 3f, the smoothing sliding seat 4a is in contact with a tray plate before the stamping sliding seat 3f in the downward sliding process, the smoothing rotating shaft 4c is further pushed to be tightly abutted against the peripheral outer wall of the tray plate under the elastic action of the smoothing spring 4b, the clamping operation of the tray plate is realized, and then in the further downward sliding process of the stamping sliding plate 3e, the stamping sliding seat 3f is in contact with the tray plate and pushes the tray plate to move synchronously towards the stamping notch 3b, so that the stamping operation of the plate is carried out;
s3, shaping and pressure maintaining: after the punching slide seat 3f pushes the tray plate to be attached to the bottom of the punching notch 3b, the heater 4d is further started, heat generated in the heater 4d is further transferred into the heating groove 4e through the heat conduction hole 4f and further transferred onto the tray, so that the tray is heated within a certain range, after the tray is heated for a certain time, the heater 4d is closed, the punching slide plate 3e is driven by the punching cylinder 3g to move upwards in a resetting mode, and the punching slide seat 3f and the leveling carriage 4a are further driven to move in a resetting mode synchronously;
then, the shaping connecting rod 5c is pushed to rotate through the shaping cylinder 5d, the shaping rotating shaft 5a is further driven to synchronously rotate, the shaping rotating shaft 5a uniformly arranged on the periphery of the stamping base 3a is further driven to synchronously rotate through meshing transmission among the bevel gears 5b, the shaping sliding frame 5g is further pushed to upwards slide in the shaping sliding groove 5f through the shaping cam 5e, then, the shaping sliding cylinder 5h is further pushed to upwards slide along the shaping sliding frame 5g through the lifting cylinder 5k, the supporting block and the shaping base 5j are further driven to synchronously move, and the outer wall edge and the upper end of the tray are further synchronously supported and positioned;
then, the clamping rotating shaft 5q7 is further rotated manually, the clamping sliding frame 5q3 is further pushed by the connecting rope 5q4 to slide synchronously to one side of the outer wall of the tray, the clamping jaw 5q5 is further enabled to be synchronously abutted against two sides of the bending position of the arc-shaped surface on the tray, the arc-shaped outer wall of the tray is further synchronously supported and clamped, and the operation efficiency of the tray shaping operation is further improved;
s4, taking out and collecting: after the shaping of the tray is completed, the positioning effect of the clamping jaws 5q5 and the shaping seats 5j on the tray is gradually released, then the supporting sliding frame 3j is pushed to move upwards through the supporting air cylinder 3h, the tray is further pushed to move upwards synchronously, and then the tray after the stamping is completed is taken out manually.
Supporting legs 2 are uniformly arranged at the corners around the lower end of the mounting bottom plate 1, a stamping mechanism 3 is arranged at the upper end of the mounting bottom plate 1, a flattening mechanism 4 is arranged on the stamping mechanism 3, a shaping mechanism 5 is arranged in the stamping mechanism 3 in a rotating mode, and the shaping mechanism 5 is located below the flattening mechanism 4;
the stamping mechanism 3 comprises a stamping base 3a, a stamping notch 3b, an Contraband-shaped frame 3c, a stamping slide bar 3d, a stamping sliding plate 3e, a stamping sliding seat 3f, a stamping cylinder 3g, a supporting cylinder 3h and a supporting sliding frame 3j, the upper end of the mounting base plate 1 is provided with a Contraband-shaped frame 3c with a downward opening, a plurality of groups of stamping slide bars 3d are arranged between the Contraband-shaped frame 3c and the mounting base plate 1, the stamping sliding plate 3e is arranged on the stamping slide bar 3d in a sliding fit manner, the stamping cylinder 3g is arranged on the Contraband-shaped frame 3c, an output shaft of the stamping cylinder 3g is connected with the stamping sliding plate 3e, the stamping sliding plate 3e is provided with a stamping sliding seat 3f, the mounting base 1 below the stamping sliding seat 3f is provided with a stamping base 3a, the middle part of the stamping base 3a is provided with a stamping notch 3b matched with the outer wall of the stamping sliding seat 3f, install support balladeur train 3j through sliding fit's mode in the punching press notch 3b, support balladeur train 3j on evenly be provided with the multiunit sucking disc, and be located and evenly seted up anti-skidding line on the support balladeur train 3j between adjacent two sets of sucking discs, install support cylinder 3h in the punching press base 3a, and support cylinder 3 h's output shaft is connected with support balladeur train 3 j.
When the punching machine works, a tray plate to be punched and formed is manually placed on the punching base 3a and is aligned in the middle, then the supporting sliding frame 3j is pushed to move upwards through the supporting air cylinder 3h, the sucker arranged on the supporting sliding frame 3j is enabled to be abutted against the side wall of the tray plate and adsorb the tray plate, the contact friction force between the supporting sliding frame 3j and the tray plate can be further enhanced through the anti-skid lines arranged on the periphery of the sucker, the tray plate is further prevented from generating a displacement sliding phenomenon, the primary positioning of the tray plate is further realized, then the punching sliding plate 3e is pushed to slide downwards along the punching sliding rod 3d through the punching air cylinder 3g, the punching sliding seat 3f is further driven to synchronously move downwards, and when the punching sliding seat 3f is abutted against the tray plate in a contact manner, the tray plate is further driven to synchronously move towards the punching notch 3b in the process, the supporting sliding frame 3j is driven to synchronously contract and reset through the supporting cylinder 3h, so that the punching forming operation of the tray plate is realized.
The smoothing mechanism 4 comprises a smoothing sliding frame 4a, a smoothing spring 4b, a smoothing rotating shaft 4c, a heater 4d, a heating groove 4e, a heat conducting hole 4f and a ball 4g, a plurality of groups of smoothing sliding frames 4a are arranged on a stamping sliding plate 3e positioned on the outer side of the stamping sliding seat 3f in a sliding fit mode, the flattening sliding frames 4a are connected with the stamping sliding plates 3e through flattening springs 4b, flattening rotating shafts 4c are uniformly arranged between the flattening sliding frames 4a in the same group in a rotating fit mode, a plurality of groups of heating grooves 4e are uniformly arranged on the side wall of the stamping sliding seat 3f along the circumferential direction, a heater 4d is arranged at the upper end of the stamping sliding seat 3f, and the heater 4d is communicated with the heating groove 4e through the heat conduction hole 4f, and a plurality of groups of balls 4g are uniformly arranged on the stamping base 3a positioned at the outer side of the stamping notch 3b in a rotating fit mode.
When the pressing device works, the pressing sliding plate 3e drives the pressing sliding seat 3f to slide downwards and simultaneously drives the leveling sliding frame 4a to slide downwards, the height of the lower end position of the leveling rotating shaft 4c is lower than that of the lower end position of the pressing sliding seat 3f, the leveling sliding frame 4a contacts with a tray plate before the pressing sliding seat 3f in the downward sliding process, the leveling sliding frame 4a is arranged on the pressing sliding plate 3e in a sliding fit mode, the leveling sliding frame 4a starts to shrink in the subsequent downward moving process of the pressing sliding plate 3e, the leveling spring 4b gradually enters a compression state, the leveling rotating shaft 4c is further pushed to be tightly abutted against the peripheral outer wall of the tray plate through the elastic action of the leveling spring 4b, the clamping operation of the tray plate is realized, and then, the tray plate is pushed by the pressing sliding seat 3f to perform the pressing process, the tray plate at the edge position of the stamping area can be further abutted and clamped by flattening the two-way extrusion action of the rotating shaft 4c and the ball 4g, the phenomenon of wrinkle deformation at the edge position of the tray plate is avoided, the smoothness of the periphery of the stamping part in the tray forming process is further improved, when the stamping slide seat 3f pushes the tray plate to be attached to the bottom of the stamping notch 3b, the heater 4d is further started, heat generated in the heater 4d is further transferred into the heating groove 4e through the heat conduction hole 4f and further transferred onto the tray, so that the temperature of the tray is raised within a certain range, the efficiency of heat transfer can be further improved through the circumferentially arranged heating groove 4e, the heat is uniformly dispersed to the periphery of the tray, the tray after stamping is heated, and the tray can be rapidly shaped after stamping, the possibility of springback during the subsequent taking-out process of the tray is reduced.
The shaping mechanism 5 comprises a shaping rotating shaft 5a, helical gears 5b, a shaping connecting rod 5c, a shaping cylinder 5d, a shaping cam 5e, a shaping sliding chute 5f, a shaping sliding frame 5g, a shaping sliding barrel 5h, a shaping seat 5j, a lifting cylinder 5k, a shaping spring 5m, a compression spring 5n, a turnover connecting rod 5p and a clamping unit 5q, wherein a plurality of groups of shaping sliding chutes 5f are uniformly arranged on the stamping base 3a positioned at the outer side of the stamping notch 3b, a plurality of groups of shaping sliding frames 5g are arranged in the shaping sliding chutes 5f in a sliding fit manner, the shaping sliding frames 5g are connected with the stamping base 3a through the shaping springs 5m, a plurality of groups of shaping rotating shafts 5a are arranged in the stamping base 3a positioned below the shaping sliding frames 5g in a rotating fit manner, a plurality of groups of helical gears 5b are uniformly arranged on the shaping rotating shafts 5a through splines, and the helical gears 5b between two adjacent shaping rotating shafts 5a are mutually meshed for transmission, a plurality of groups of shaping cams 5e are uniformly arranged on a shaping rotating shaft 5a positioned in a shaping chute 5f through splines, the shaping cams 5e are abutted against a shaping sliding frame 5g in a sliding fit mode, a shaping connecting rod 5c is arranged on the shaping rotating shaft 5a through splines, a shaping cylinder 5d is arranged on an installation base plate 1 in a rotating fit mode, an output shaft of the shaping cylinder 5d is hinged with the shaping connecting rod 5c for transmission, a plurality of groups of shaping seats 5j are arranged at the upper end part of the shaping sliding frame 5g in a rotating fit mode, conical blocks made of elastic materials are uniformly arranged on the shaping seats 5j, a plurality of groups of shaping sliding cylinders 5h are arranged on the shaping sliding frame 5g positioned below the shaping seats 5j in a sliding fit mode, the shaping sliding cylinders 5h are hinged with the shaping seats 5j for transmission through turnover connecting rods 5p, and compression springs 5n are sleeved on the shaping sliding frame 5g positioned between the shaping sliding cylinders 5h and the shaping seats 5j, the shaping sliding frame 5g is provided with a lifting cylinder 5k in a rotating fit mode, an output shaft of the lifting cylinder 5k is in transmission hinge connection with a shaping sliding barrel 5h, a supporting block is arranged on the side wall of the shaping sliding barrel 5h and located below a shaping base 5j, and a clamping unit 5q is arranged in the stamping base 3 a.
When the punching machine works specifically, after the tray is heated for a certain time, the heater 4d is closed, the punching cylinder 3g drives the punching slide plate 3e to move upwards for resetting, the punching slide seat 3f and the smoothing slide frame 4a are further driven to move synchronously for resetting, at the moment, the tray is still positioned at the inner side of the punching notch 3b under the adsorption action of the sucker, then the shaping cylinder 5d pushes the shaping connecting rod 5c to rotate, the shaping rotating shaft 5a is further driven to rotate synchronously, the shaping rotating shafts 5a which are uniformly arranged at the periphery of the punching base 3a are further driven to rotate synchronously through the meshing transmission between the bevel gears 5b, the uniformly arranged shaping cams 5e are further driven to rotate synchronously, and the shaping slide frame 5g is further pushed to slide upwards in the shaping chute 5f through the abutting action when the shaping cams 5e rotate, when the output shaft of the shaping cylinder 5d extends to the farthest distance, the shaping carriage 5g rises to the largest height, then the extending operation state of the shaping cylinder 5d is kept, the position height of the shaping carriage 5g is further positioned, when the shaping carriage 5g rises to the largest position height, the shaping spring 5m is in the stretching state, the shaping seat 5j is positioned above the shaping chute 5f, then the shaping sliding cylinder 5h is further pushed by the lifting cylinder 5k to slide upwards along the shaping carriage 5g, at the moment, the compression spring 5n is in the compression state, the support block is further driven to synchronously move and abut against the edge side wall of the tray, in the process that the shaping sliding cylinder 5h slides upwards, the shaping seat 5j is further driven to rotate by the hinged transmission of the turnover connecting rod 5p, when the output shaft of the lifting cylinder 5k extends to the farthest distance, set up on the toper piece on the design seat 5j supports and leans on the upper end lateral wall of tray, through carrying out synchronous support operation to the edge all around of tray and upper end, can further fix a position the position of tray in punching press notch 3b, prevent that the suction of sucking disc is not enough to lead to the tray to take place to incline and bounce when carrying out elastic recovery, further promote the operating efficiency of tray design operation and the stability when finalizing the design.
The clamping unit 5q comprises a clamping notch 5q1, a fixed shaft 5q2, a clamping sliding frame 5q3, a connecting rope 5q4, a clamping jaw 5q5, a clamping spring 5q6 and a clamping rotating shaft 5q7, the upper end of the punching base 3a is provided with a clamping notch 5q1, the corners of the periphery of the clamping notch 5q1 are uniformly provided with a plurality of groups of fixed shafts 5q2 through bearings, the outer wall of the punching base 3a is provided with a clamping rotating shaft 5q7 through a bearing, the clamping rotating shaft 5q7 is provided with a limiting disc through a spline, the limiting disc is uniformly provided with a limiting groove along the circumferential direction, the punching base 3a is provided with a limiting block, the limiting block abuts against the limiting groove in a sliding fit manner, the clamping rotating shaft 5q7 is provided with the connecting rope 5q4, the other end of the connecting rope 5q4 is arranged in the clamping notch 5q1, and the connecting rope 5q4 abuts against the side wall of the fixed shaft 5q2 in a sliding fit manner, a plurality of groups of clamping sliding carriages 5q3 are arranged in a clamping notch 5q1 between the same group of fixed shafts 5q2 in a sliding fit mode, the clamping sliding carriages 5q3 are connected with the punching base 3a through clamping springs 5q6, the connecting ropes 5q4 abut against the clamping sliding carriages 5q3 in a sliding fit mode, clamping jaws 5q5 are symmetrically arranged on the clamping sliding carriages 5q3 in a rotating fit mode, the clamping jaws 5q5 are connected with the clamping sliding carriages 5q3 through torsion springs, and elastic columns are uniformly arranged on the clamping jaws 5q 5.
When the clamping device works specifically, after the sizing seat 5j positions and clamps the tray, the limiting block is shifted upwards manually, the clamping effect on the limiting groove is further removed, then the clamping rotating shaft 5q7 is further rotated manually, the limiting disc is further driven to synchronously rotate while the clamping rotating shaft 5q7 rotates, the connecting rope 5q4 is further driven to be wound, in the winding process of the connecting rope 5q4, the clamping sliding frame 5q3 is further pushed to synchronously slide towards one side of the outer wall of the tray through the sliding abutting effect, the clamping jaw 5q5 is further synchronously abutted against two sides of the bending position of the arc-shaped surface on the tray, the tray is further supported and clamped, the elastic column arranged on the clamping jaw 5q5 can increase the contact friction force between the clamping jaw 5q5 and the tray and avoid clamping damage to the outer wall of the tray, and the stability of the clamping and positioning operation is further improved, the efficiency of the operation of tray design can be further promoted through the spacing operation of centre gripping of carrying out the synchronization to it on the arc lateral wall of tray, after the location centre gripping operation of clamping jaw 5q5 realization to the tray, stop the rotation of centre gripping pivot 5q7, can further carry out spacingly through the joint cooperation between stopper and the spacing groove to the position of spacing dish, further realize the spacing to clamping jaw 5q5 position through centre gripping pivot 5q7 and connection rope 5q4, after the tray design is accomplished, progressively remove clamping jaw 5q5 and the location effect of shaping seat 5j to the tray, later promote support balladeur train 3j rebound through supporting cylinder 3h, further promote the tray upwards carry out synchronous motion, later, take out the tray after the punching press is accomplished through the manual work.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a medical tray stamping forming technology, its used a medical tray stamping forming device, this medical tray stamping forming device includes mounting plate (1), supporting legs (2), punching press mechanism (3), smooths mechanism (4) and forming mechanism (5), its characterized in that: the specific process for the medical tray punch forming operation by adopting the medical tray punch forming device is as follows:
s1, placing the plates: firstly, manually placing a tray plate to be subjected to punch forming into a punching mechanism (3), and checking the integral operation state of the device;
s2, stamping forming: the punching mechanism (3) is used for punching and forming the medical tray, and the flattening mechanism (4) is used for pressing and flattening the tray plates around the punching position in the punching process;
s3, shaping and pressure maintaining: after the step S2 is finished, further shaping and pressure maintaining operation is carried out on the medical tray through a shaping mechanism (5);
s4, taking out and collecting: after the step S3 is finished, ejecting the shaped medical tray through a punching mechanism (3), and manually carrying out further collection operation;
supporting legs (2) are uniformly arranged at the corners around the lower end of the mounting bottom plate (1), a stamping mechanism (3) is arranged at the upper end of the mounting bottom plate (1), a flattening mechanism (4) is arranged on the stamping mechanism (3), a shaping mechanism (5) is arranged and rotated in the stamping mechanism (3), and the shaping mechanism (5) is positioned below the flattening mechanism (4);
the stamping mechanism (3) comprises a stamping base (3a), a stamping notch (3b), an Contraband type frame (3c), a stamping slide bar (3d), a stamping sliding plate (3e), a stamping sliding seat (3f), a stamping cylinder (3g), a supporting cylinder (3h) and a supporting sliding frame (3j), the upper end of the mounting base plate (1) is provided with a Contraband type frame (3c) with a downward opening, a plurality of groups of stamping slide bars (3d) are arranged between the Contraband type frame (3c) and the mounting base plate (1), the stamping sliding plate (3e) is arranged on the stamping slide bar (3d) in a sliding fit mode, the stamping cylinder (3g) is arranged on the Contraband type frame (3c), the output shaft of the stamping cylinder (3g) is connected with the stamping sliding plate (3e), the stamping sliding seat (3f) is arranged on the stamping sliding plate (3e), the stamping base (3a) is arranged on the mounting base plate (1) below the stamping sliding seat (3f), the middle part of punching press base (3a) is seted up with punching press slide (3f) outer wall matched with punching press notch (3b), installs support balladeur train (3j) through sliding fit's mode in punching press notch (3b), installs support cylinder (3h) in punching press base (3a), and the output shaft of support cylinder (3h) is connected with support balladeur train (3 j).
2. The punch forming process of the medical tray as claimed in claim 1, wherein: the flattening mechanism (4) comprises a flattening sliding frame (4a), a flattening spring (4b), a flattening rotating shaft (4c), a heater (4d), a heating groove (4e), a heat conducting hole (4f) and balls (4g), a plurality of groups of flattening sliding frames (4a) are arranged on a stamping sliding plate (3e) positioned on the outer side of the stamping sliding seat (3f) in a sliding fit mode, the flattening sliding frames (4a) are connected with the stamping sliding plate (3e) through the flattening spring (4b), the flattening rotating shafts (4c) are uniformly arranged between the flattening sliding frames (4a) in the same group in a rotating fit mode, a plurality of groups of heating grooves (4e) are uniformly formed in the circumferential direction of the side wall of the stamping sliding seat (3f), the heater (4d) is arranged at the upper end of the stamping sliding seat (3f), and the heater (4d) is communicated with the heating grooves (4e) through the heat conducting hole (4f), a plurality of groups of balls (4g) are uniformly arranged on the stamping base (3a) positioned at the outer side of the stamping notch (3b) in a rotating fit mode.
3. The punch forming process of the medical tray as claimed in claim 1, wherein: the shaping mechanism (5) comprises a shaping rotating shaft (5a), a helical gear (5b), a shaping connecting rod (5c), a shaping cylinder (5d), a shaping cam (5e), a shaping sliding groove (5f), a shaping sliding frame (5g), a shaping sliding barrel (5h), a shaping seat (5j), a lifting cylinder (5k), a shaping spring (5m), a compression spring (5n), a turnover connecting rod (5p) and a clamping unit (5q), wherein a plurality of groups of shaping sliding grooves (5f) are uniformly formed in the stamping base (3a) positioned at the outer side of a stamping notch (3b), a plurality of groups of shaping sliding frames (5g) are arranged in the shaping sliding grooves (5f) in a sliding fit manner, the shaping sliding frames (5g) are connected with the stamping base (3a) through the shaping spring (5m), a plurality of groups of shaping rotating shafts (5a) are arranged in the stamping base (3a) positioned below the shaping sliding frames (5g) in a rotating fit manner, the shaping mechanism is characterized in that a plurality of groups of helical gears (5b) are uniformly arranged on a shaping rotating shaft (5a) through splines, the helical gears (5b) between two adjacent groups of shaping rotating shafts (5a) are in meshed transmission, a plurality of groups of shaping cams (5e) are uniformly arranged on the shaping rotating shaft (5a) in a shaping sliding groove (5f) through splines, the shaping cams (5e) are abutted against a shaping sliding frame (5g) in a sliding fit mode, a shaping connecting rod (5c) is arranged on the shaping rotating shaft (5a) through splines, a shaping cylinder (5d) is arranged on an installation base plate (1) in a rotating fit mode, an output shaft of the shaping cylinder (5d) is hinged with the shaping connecting rod (5c) for transmission, a plurality of groups of shaping seats (5j) are arranged at the end part of the upper end part of the shaping sliding frame (5g) below the shaping seats (5j), and a plurality of groups of shaping sliding cylinders (5h) are arranged on the shaping sliding fit mode The shaping sliding barrel (5h) is hinged with a shaping seat (5j) through a turnover connecting rod (5p) and is sleeved with a compression spring (5n) on a shaping sliding frame (5g) located between the shaping sliding barrel (5h) and the shaping seat (5j), a lifting cylinder (5k) is mounted on the shaping sliding frame (5g) in a rotation fit mode, an output shaft of the lifting cylinder (5k) is hinged with the shaping sliding barrel (5h) in a transmission mode, and a clamping unit (5q) is mounted in a stamping base (3 a).
4. The punch forming process of the medical tray as claimed in claim 3, wherein: the clamping unit (5q) comprises a clamping notch (5q1), a fixed shaft (5q2), a clamping sliding frame (5q3), a connecting rope (5q4), a clamping jaw (5q5), a clamping spring (5q6) and a clamping rotating shaft (5q7), the upper end of the stamping base (3a) is provided with the clamping notch (5q1), a plurality of groups of fixed shafts (5q2) are uniformly arranged at the corners of the periphery of the clamping notch (5q1) through bearings, the clamping rotating shaft (5q7) is arranged on the outer wall of the stamping base (3a) through bearings, the connecting rope (5q4) is arranged on the clamping rotating shaft (5q7), the other end of the connecting rope (5q4) is arranged in the clamping notch (5q1), the connecting rope (5q4) abuts against the side wall of the fixed shaft (5q2) in a sliding fit mode, and a plurality of groups of clamping sliding frame (3) are arranged in the clamping notch (5q1) between the same group of fixed shafts (5q2) in a sliding fit mode, the clamping sliding frame (5q3) is connected with the stamping base (3a) through a clamping spring (5q6), the connecting rope (5q4) abuts against the clamping sliding frame (5q3) in a sliding fit mode, clamping jaws (5q5) are symmetrically installed on the clamping sliding frame (5q3) in a rotating fit mode, and the clamping jaws (5q5) are connected with the clamping sliding frame (5q3) through torsion springs.
5. The punch forming process of the medical tray as claimed in claim 3, wherein: the shaping seat (5j) is uniformly provided with conical blocks made of elastic materials.
6. The punch forming process of the medical tray as claimed in claim 3, wherein: the side wall of the shaping sliding cylinder (5h) is provided with a supporting block, and the supporting block is positioned below the shaping seat (5 j).
7. The punch forming process of the medical tray as claimed in claim 4, wherein: the clamping rotating shaft (5q7) is provided with a limiting disc through a spline, the limiting disc is provided with a limiting groove along the circumferential direction of the limiting disc, the stamping base (3a) is provided with a limiting block, and the limiting block is of an elastic structure and is supported in the limiting groove in a sliding fit mode.
8. The punch forming process of the medical tray as claimed in claim 1, wherein: the supporting sliding frame (3j) is evenly provided with a plurality of groups of suckers, and anti-skid grains are evenly arranged on the supporting sliding frame (3j) between two adjacent groups of suckers.
9. The punch forming process of the medical tray as claimed in claim 4, wherein: the clamping jaw (5q5) is connected with the clamping carriage (5q3) through a torsion spring, and elastic columns are uniformly arranged on the clamping jaw (5q 5).
10. The punch forming process of the medical tray as claimed in claim 2, wherein: the height of the lower end of the flattening rotating shaft (4c) is lower than that of the lower end of the stamping sliding seat (3 f).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110521484.4A CN113198896A (en) | 2021-05-13 | 2021-05-13 | Punch forming process for medical tray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110521484.4A CN113198896A (en) | 2021-05-13 | 2021-05-13 | Punch forming process for medical tray |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113198896A true CN113198896A (en) | 2021-08-03 |
Family
ID=77030963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110521484.4A Pending CN113198896A (en) | 2021-05-13 | 2021-05-13 | Punch forming process for medical tray |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113198896A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116586498A (en) * | 2023-07-14 | 2023-08-15 | 江苏泽润新能科技股份有限公司 | New energy automobile battery tray shaping device |
-
2021
- 2021-05-13 CN CN202110521484.4A patent/CN113198896A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116586498A (en) * | 2023-07-14 | 2023-08-15 | 江苏泽润新能科技股份有限公司 | New energy automobile battery tray shaping device |
| CN116586498B (en) * | 2023-07-14 | 2023-09-08 | 江苏泽润新能科技股份有限公司 | New energy automobile battery tray shaping device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107695663B (en) | A kind of worm gear reset spring automatic assembling apparatus | |
| CN113198896A (en) | Punch forming process for medical tray | |
| CN213826518U (en) | Various steel sheet forming device that bends | |
| CN112474943A (en) | Batch production process of power wire clamps | |
| CN212704191U (en) | Forging device in forging part machining process | |
| CN116441394B (en) | Adjustable stamping equipment is used in digit control machine tool processing | |
| CN217141805U (en) | Plate bending machine with clamping function | |
| CN117619990A (en) | Stamping device for metal gears | |
| CN115157026B (en) | Elbow pipe fitting surface polishing device | |
| CN208245674U (en) | A kind of fixed device of stamping die processing | |
| CN112024754B (en) | Metal tank body punch forming equipment and punch forming process | |
| CN214683634U (en) | Panel hem instrument | |
| CN217373995U (en) | Dual-heating embossing machine | |
| CN113290139A (en) | Manufacturing, forming and processing machine and processing technology for valve plate of air compressor | |
| CN206383493U (en) | Bending machine | |
| CN116586477B (en) | Bending machine for processing power distribution cabinet | |
| CN218873362U (en) | Bending machine with adjusting structure for metal processing | |
| CN108215136B (en) | Pipe bender | |
| CN115351163B (en) | Plate drawing bending curved surface shaping mechanism | |
| CN217749033U (en) | Stamping device is used in sheet metal component processing | |
| CN221187685U (en) | Heat sealing mechanism | |
| CN217648345U (en) | Mould maintenance frame | |
| CN214031640U (en) | Automatic screwing device for bottle cap and body | |
| CN214522338U (en) | Embossing device for preparing pattern flower shape of surface depression of special paper | |
| CN211803636U (en) | Forging die for special-shaped pipe |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210803 |
|
| RJ01 | Rejection of invention patent application after publication |