CN214645126U - Low-high pressure general forming device - Google Patents
Low-high pressure general forming device Download PDFInfo
- Publication number
- CN214645126U CN214645126U CN202023333106.3U CN202023333106U CN214645126U CN 214645126 U CN214645126 U CN 214645126U CN 202023333106 U CN202023333106 U CN 202023333106U CN 214645126 U CN214645126 U CN 214645126U
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- Prior art keywords
- pressure
- low
- glue injection
- glue
- injection port
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- 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.)
- Withdrawn - After Issue
Links
- 239000003292 glue Substances 0.000 claims abstract description 209
- 238000002347 injection Methods 0.000 claims abstract description 147
- 239000007924 injection Substances 0.000 claims abstract description 147
- 238000007789 sealing Methods 0.000 claims description 47
- 238000007664 blowing Methods 0.000 claims description 42
- 239000002184 metal Substances 0.000 claims description 23
- 238000000465 moulding Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 11
- 239000000463 material Substances 0.000 description 13
- 238000009745 resin transfer moulding Methods 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005034 decoration Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses the innovation provides a low general forming device of high pressure, including last die carrier and lower die carrier, go up the die carrier and arrange in the lower die carrier top, be provided with first die cavity on the last die carrier, be provided with the second die cavity on the lower die carrier, first die cavity and the cooperation of second die cavity form the injecting glue chamber, go up the die carrier upper surface and be provided with a plurality of low pressure injecting glue mouth, a plurality of low pressure glue outlet, high pressure injecting glue mouth and a plurality of gas blow mouth, be provided with a plurality of gas blow mouth on the lower die carrier lower surface, low pressure injecting glue mouth, low pressure glue outlet, high pressure injecting glue mouth and gas blow mouth all communicate with the die cavity; the switching of two processes is realized by controlling the on-off of the low-pressure glue injection port, the low-pressure glue outlet and the high-pressure glue injection port, and the time for replacing the mold is shortened.
Description
Technical Field
The utility model relates to a technical field of mould, more specifically the utility model relates to a general forming device of low high pressure that says so.
Background
The resin infusion RTM process comprises LP-RTM and C-RTM, wherein the LP-RTM is low-pressure forming and used for production of sample pieces, and the C-RTM is high-pressure forming and used for mass production; due to the fact that the LP-RTM and the C-RTM are different in production process, different molds need to be replaced due to the fact that the LP-RTM and the C-RTM are different in production process, connection is complex, and a large amount of time is spent in the process of replacing the forming molds.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a general forming device of low high pressure for overcome the above-mentioned defect among the prior art.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a low-pressure and high-pressure general forming device comprises an upper die frame and a lower die frame, wherein the upper die frame is arranged above the lower die frame, a first die cavity is arranged on the upper die frame, a second die cavity is arranged on the lower die frame, the first die cavity and the second die cavity are matched to form a glue injection cavity, a plurality of low-pressure glue injection ports, a plurality of low-pressure glue outlet ports, a high-pressure glue injection port and a plurality of air blowing ports are arranged on the upper surface of the upper die frame, a plurality of air blowing ports are arranged on the lower surface of the lower die frame, the low-pressure glue injection ports, the low-pressure glue outlet ports, the high-pressure glue injection ports and the air blowing ports are all communicated with the glue injection cavity, low-pressure glue injection pipes communicated with a low-pressure glue injection machine are arranged on the low-pressure glue injection ports, high-pressure glue injection pipes are arranged in the high-pressure glue injection ports, one ends of the high-pressure glue injection pipes are communicated with the high-pressure glue injection guns are arranged at the other ends of the high-pressure glue injection pipes, one side of going up the die carrier is provided with the vacuum pump, be provided with first pipeline and second pipeline on the vacuum pump, a plurality of all be provided with the gas blow pipe on the gas blow mouth, first pipeline, second pipeline communicate with each other through solenoid valve and gas blow pipe, the low pressure glue outlet communicates with each other with first pipeline through low extrusion rubber tube, upward be provided with a plurality of standing grooves on the die carrier, it is a plurality of be provided with sealing member or injecting glue spare in the standing groove.
Preferably, the high-pressure glue injection port is located in the center of the upper surface of the upper die frame, the two sides of the high-pressure glue injection port are provided with the low-pressure glue injection port and the air blowing port at the same time, the high-pressure glue injection port, the low-pressure glue injection port and the air blowing port are located on the same straight line and are parallel to the side wall of the upper die frame, and the low-pressure glue outlet is arranged on the upper surface of the upper die frame in a surrounding mode.
Preferably, the glue injection part comprises a metal pressure plate and a connecting pipe, the connecting pipe is arranged on the metal pressure plate, a through hole is formed in the metal pressure plate and communicated with the connecting pipe, and the metal pressure plate is provided with the upper surface of the upper die frame.
Preferably, a mounting table is arranged on the metal pressure plate, the connecting pipe is arranged on the mounting table, the mounting table is inserted into the low-pressure glue outlet and the low-pressure glue injection port, a sealing ring is arranged on the outer ring of the mounting table in a winding mode, the sealing ring is arranged on the surface of the metal pressure plate, and the sealing ring is arranged between the metal pressure plate and the upper die frame.
Preferably, the glue injection piece comprises a first glue injection piece and a second glue injection piece, the first glue injection piece is arranged in the low-pressure glue injection port, the second glue injection piece is arranged in the low-pressure glue outlet, and a check valve for preventing outside air from entering the glue injection cavity is arranged in the connecting pipe of the second glue injection piece.
Preferably, the edges of the periphery of the connecting surface of the upper die frame are respectively provided with a sealing groove, the sealing grooves are connected, the connecting surface of the lower die frame is correspondingly provided with a sealing strip, and the sealing strip is matched with the sealing grooves.
Preferably, the sealing strip outside is provided with a plurality of mounting grooves, and is a plurality of all be provided with height-adjustable's gasket in the mounting groove.
The utility model has the advantages that: the upper die frame is simultaneously provided with the low-pressure glue injection port, the low-pressure glue outlet and the high-pressure glue injection port, so that high-pressure and low-pressure products can be produced simultaneously by adopting the die, the switching of two processes is realized by controlling the on-off of the low-pressure glue injection port, the low-pressure glue outlet and the high-pressure glue injection port, and the replacement time of the die is reduced.
Drawings
FIG. 1 is an overall structure of the present invention;
FIG. 2 is a schematic structural view of the upper mold frame of the present invention;
FIG. 3 is a schematic structural view of the lower mold frame of the present invention;
FIG. 4 is a schematic structural view of the glue injection member of the present invention;
FIG. 5 is a schematic view of the sealing member of the present invention;
FIG. 6 is a diagram of the connection of the mold pipes of the present invention;
fig. 7 is a pipeline connection diagram of the vacuum pump of the present invention.
Reference numerals: 1. feeding a mold frame; 11. a low-pressure glue injection port; 12. a low-pressure glue outlet; 13. a high-pressure glue injection port; 14. an air blowing port; 15. a seal member; 2. a lower die frame; 21. mounting grooves; 22. a sealing strip; 3. injecting a glue piece; 31. a metal platen; 32. an installation table; 33. a connecting pipe; 34. a seal ring; 41. a low-pressure glue injection pipe; 42. a high-pressure glue injection pipe; 43. an air blowing pipe; 44. a low-pressure rubber outlet pipe; 45. a vacuum pump; 451. a first pipeline; 452. a second pipeline; 46. a high-pressure glue injection gun; 47. low-pressure glue injection machine.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The embodiments of the present invention will be described in detail with reference to the accompanying drawings:
at present, molds for LP-RTM and C-RTM are different, the connection of the molds is complex in the production process, and in order to solve the problems, a low-high pressure general forming device is provided, as shown in figures 1-7, the low-high pressure general forming device comprises an upper mold frame 1 and a lower mold frame 2, the upper mold frame 1 is arranged above the lower mold frame 2, a first mold cavity is arranged on the upper mold frame 1, a second mold cavity is arranged on the lower mold frame 2, the first glue injection cavity and the second glue injection cavity are matched to form a glue injection cavity, and the low-high pressure general forming device is adopted to simultaneously realize two processes of LP-RTM and C-RTM on the same mold.
As shown in fig. 2, the upper surface of the upper mold frame 1 is provided with a plurality of low-pressure glue injection ports 11, a plurality of low-pressure glue outlet ports 12, a high-pressure glue injection port 13 and a plurality of gas blowing ports 14, the lower surface of the lower mold frame 2 is provided with a plurality of gas blowing ports 14, the low-pressure glue injection ports 11, the low-pressure glue outlet ports 12, the high-pressure glue injection ports 13 and the gas blowing ports 14 are all communicated with the glue injection cavity, the plurality of low-pressure glue injection ports 11 are all provided with low-pressure glue injection pipes 41 communicated with a low-pressure glue injection machine 47, the high-pressure glue injection ports 13 are provided with high-pressure glue injection pipes 42, the high-pressure glue injection pipes 42 are internally provided with first solid parts in a detachable manner, one end of each high-pressure glue injection pipe 42 is communicated with the high-pressure glue injection port 13, the other end of each high-pressure glue injection pipe 42 is provided with a high-pressure gun 46, one side of the upper mold frame 1 is provided with a vacuum pump 45, the plurality of gas blowing ports 14 are all provided with gas blowing pipes 43, the vacuum pump 45 is provided with a first pipeline 451 and a second pipeline 452, the first pipeline 451 and the second pipeline 452 are communicated with the air blowing pipe 43 through electromagnetic valves, and the low-pressure glue outlet 12 is communicated with the first pipeline 451 through a low-pressure glue outlet pipe 44; the air blowing port 14 is simultaneously the same as the first pipeline 451 and the second pipeline 452 of the vacuum pump 45 through an electromagnetic valve, and air blowing and air exhaust of the glue injection cavity are realized by changing the state of the electromagnetic valve; be provided with a plurality of standing grooves on last die carrier 1, be provided with sealing member 15 or injecting glue piece 3 in the standing groove, in the use, according to the demand of different technologies, install sealing member 15 or injecting glue piece 3 in low pressure injecting glue mouth 11, low pressure play jiao kou 12, high pressure injecting glue mouth 13, realize the control to different pipeline break-make.
The high-pressure glue injection port 13 is positioned in the center of the upper surface of the upper mold frame 1, the low-pressure glue injection port 11 and the air blowing port 14 are arranged on two sides of the high-pressure glue injection port 13 at the same time, the high-pressure glue injection port 13, the low-pressure glue injection port 11 and the air blowing port 14 are positioned on the same straight line and are parallel to the side wall of the upper mold frame 1, and the low-pressure glue outlet 12 is arranged on the upper surface of the upper mold frame 1 in a surrounding mode; the high-pressure glue injection port 13 is arranged in the center of the upper mold frame 1, the low-pressure glue injection port 11 and the gas blowing port 14 are arranged on two sides of the high-pressure glue injection port 13, the gas blowing port 14 comprises a first gas blowing port and a second gas blowing port, the low-pressure glue injection port 11 comprises a first glue injection port and a second glue injection port, the first gas blowing port, the first glue injection port, the high-pressure glue injection port 13, the second glue injection port and the second gas blowing port are sequentially arranged on the upper mold frame 1, and the first gas blowing port, the first glue injection port, the high-pressure glue injection port 13, the second glue injection port and the second gas blowing port are positioned on the same straight line and parallel to the side wall of the upper mold frame 1; the first air blowing port, the first glue injection port, the high-pressure glue injection port 13, the second glue injection port and the second air blowing port are positioned on the same straight line, so that the upper die frame 1 can be conveniently installed and positioned on a press; the distance between the air blowing port 14 and the high-pressure glue injection port 13 is 675mm, the air blowing ports 14 are arranged on two sides of the high-pressure glue injection port 13, when the distance between the air blowing ports 14 and the high-pressure glue injection port 13 is within the range of 650 plus 700mm, the mold is more uniformly stressed when the air blowing ports 14 are used for demolding, and the mold can be rapidly separated from the upper mold frame 1; the distance between the low-pressure glue injection port 11 and the high-pressure glue injection port 13 is 425mm, the low-pressure glue injection ports 11 are arranged on the two sides of the high-pressure glue injection port 13, when the distance between the low-pressure glue injection port 11 and the high-pressure glue injection port 13 is within the range of 400 plus 450mm, when glue is injected through the low-pressure glue injection port 11, materials can be ensured to be uniformly injected into the glue injection cavity, and the materials are molded more uniformly; the periphery of the upper surface of the upper die frame 1 is uniformly provided with low-pressure glue outlets 12, and the low-pressure glue outlets 12 are used for facilitating exhaust in the glue injection process and discharge of bubbles after glue injection.
As shown in fig. 4, the glue injection member 3 includes a metal platen 31 and a connecting pipe 33, the connecting pipe 33 is disposed on the metal platen 31, a through hole is disposed on the metal platen 31, the through hole is communicated with the connecting pipe 33, the metal platen 31 is disposed on the upper surface of the upper mold base 1, the connecting pipe 33 is inserted into the low-pressure glue injection port 11 and the low-pressure glue outlet 12, and the connecting pipe 33 is communicated with the glue injection cavity; a mounting table 32 is arranged on the metal pressure plate 31, a connecting pipe 33 is arranged on the mounting table 32, the mounting table 32 is inserted into the low-pressure glue outlet 12 and the low-pressure glue injection port 11, a sealing ring 34 is arranged around the mounting table 32, the sealing ring 34 is arranged on the surface of the metal pressure plate 31, and the sealing ring 34 is arranged between the metal pressure plate 31 and the upper mold frame 1; a fixing piece is further arranged on the metal pressure plate 31 and arranged on the side of the mounting table 32, the fixing piece is arranged in a surrounding mode by taking the mounting table 32 as a circle center, and the metal pressure plate 31 is fixedly connected with the upper die frame 1 through the fixing piece; the glue injection piece 3 comprises a first glue injection piece and a second glue injection piece, the first glue injection piece is arranged in the low-pressure glue injection port 11, the second glue injection piece is arranged in the low-pressure glue outlet 12, and a one-way valve for preventing outside air from entering the glue injection cavity is arranged in a connecting pipe 33 of the second glue injection piece; set up first injecting glue piece in low pressure injecting glue mouth 11, set up second injecting glue piece in pushing out the jiao kou, utilize first injecting glue piece, be convenient for enter into the injecting glue intracavity with the material through first low pressure injecting glue mouth 11, utilize second injecting glue piece, carry out low pressure injecting glue in-process, when guaranteeing that the material injects the mould completely, air accessible second injecting glue piece in the material is discharged from the injecting glue intracavity, and simultaneously, utilize the check valve, when guaranteeing the air escape in the injecting glue intracavity, avoid having the air in the material, influence the shaping.
As shown in fig. 5, the sealing member 15 is a solid member, and in the high-pressure molding process, the sealing member 15 is used to block the low-pressure glue injection port 11 and the low-pressure glue outlet 12, so as to prevent the pressure of the mold from being released and the material in the glue injection cavity from overflowing; in the low-pressure molding process, the sealing element 15 is used for blocking the high-pressure glue injection port 13, so that the external air is prevented from entering the glue injection cavity through the high-pressure glue injection port 13 to generate bubbles.
The periphery of the connecting surface of the upper die carrier 1 is respectively provided with a sealing groove, two adjacent sealing grooves are connected, the lower die carrier 2 is provided with a sealing strip 22, the sealing strip 22 is matched with the sealing grooves, and the sealing connection between the upper die carrier 1 and the lower die carrier 2 is realized by the matching of the sealing strip 22 and the sealing grooves; a plurality of mounting grooves 21 are formed in the outer side of the sealing strip 22, and gaskets with adjustable heights are arranged in the mounting grooves 21; by utilizing the matching of the sealing ring 34 and the sealing groove, the material is ensured not to leak from the joint of the sealing ring and the sealing groove in the high-pressure and low-pressure forming processes; be provided with the gasket in mounting groove 21, during high-pressure injecting glue, utilize the gasket can be to the position between cope match-plate pattern 1 and the lower bolster 2, simultaneously, when high-pressure forming, can compress the gasket.
The working principle is as follows: in the low-pressure molding process, a sealing element 15 is arranged in the high-pressure glue injection port 13, a first glue injection element is arranged in the low-pressure glue injection port 11, a second glue injection element is arranged in the low-pressure glue outlet 12, the low-pressure glue injection port 11 is communicated with a low-pressure glue injection machine 47 through a low-pressure glue injection pipe 41, the gas blowing port 14 is communicated with a first pipeline 451 through a gas blowing pipe 43, and the low-pressure glue outlet 12 is communicated with the first pipeline 451 through a low-pressure glue outlet pipe 44; the vacuum pump 45 is used for pumping air in the glue injection cavity through the air blowing port 14 and the low-pressure glue outlet 12, so that the glue injection cavity is in a state, the air blowing port 14 is closed through the electromagnetic valve, and meanwhile, the one-way valve in the second glue injection piece is used for preventing external air from entering the glue injection cavity; the low-pressure glue injection machine 47 quantitatively injects materials into the glue injection cavity through the first glue injection machine on the low-pressure glue injection port 11; after the materials are molded, the air blowing pipes 43 on the upper die frame 1 and the lower die frame 2 are communicated with a second pipeline 452 on the vacuum pump 45 by using an electromagnetic valve; the air blowing port 14 is utilized to realize the rapid demoulding of the material; in the process of high-pressure glue injection molding, sealing elements 15 are arranged in the low-pressure glue injection port 11 and the low-pressure glue outlet 12, and the sealing elements 15 in the high-pressure glue injection port 13 are taken out and connected with a high-pressure glue injection gun 46; closing the die by a press, wherein the upper die frame 1 and the lower die frame 2 are not completely combined, a 2mm gap exists between the upper die frame 1 and the lower die frame 2, and meanwhile, the die is ensured not to leak after being vacuumized and is in a sealing state; vacuumizing the glue injection cavity by using the air blowing port 14, plugging the air blowing port 14 after vacuumizing is completed, and injecting materials; after the material injection is finished, the upper die frame 1 is pressed down, the die is closed and shaped, the die is opened after the product is shaped, and the air blowing port 14 is started to blow and demould the product while the die is opened; and the low-pressure forming and the high-pressure forming are quickly switched by controlling the on-off of the pipeline.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A low-pressure and high-pressure general forming device comprises an upper die frame (1) and a lower die frame (2), and is characterized in that the upper die frame (1) is arranged above the lower die frame (2), a first die cavity is arranged on the upper die frame (1), a second die cavity is arranged on the lower die frame (2), the first die cavity and the second die cavity are matched to form a glue injection cavity, the upper surface of the upper die frame (1) is provided with a plurality of low-pressure glue injection ports (11), a plurality of low-pressure glue outlet ports (12), a high-pressure glue injection port (13) and a plurality of air injection ports (14), the lower surface of the lower die frame (2) is provided with a plurality of air injection ports (14), the low-pressure glue injection ports (11), the low-pressure glue outlet ports (12), the high-pressure glue injection ports (13) and the air injection ports (14) are all communicated with the glue injection cavity, and a plurality of low-pressure glue injection pipes (41) communicated with a low-pressure glue injector (47) are arranged on the low-pressure glue injection ports (11), high-pressure injecting glue mouth (13) department is provided with high-pressure injecting glue pipe (42), the one end and the high-pressure injecting glue mouth (13) of high-pressure injecting glue pipe (42) communicate with each other, the other end of high-pressure injecting glue pipe (42) is provided with high-pressure injecting glue rifle (46), one side of going up die carrier (1) is provided with vacuum pump (45), be provided with first pipeline (451) and second pipeline (452), a plurality of on vacuum pump (45) all be provided with gas blow pipe (43) on gas blow mouth (14), first pipeline (451) communicate with each other through solenoid valve and gas blow pipe (43) with second pipeline (452), low pressure glue outlet (12) communicate with each other through low extrusion rubber tube (44) and first pipeline (451), upward be provided with a plurality of standing grooves on die carrier (1), a plurality of be provided with sealing member (15) or injecting glue spare (3) in the standing groove.
2. The low-pressure and high-pressure universal forming device is characterized in that the high-pressure glue injection port (13) is located in the center of the upper surface of the upper mold frame (1), the low-pressure glue injection port (11) and the air blowing port (14) are arranged on two sides of the high-pressure glue injection port (13) at the same time, the high-pressure glue injection port (13), the low-pressure glue injection port (11) and the air blowing port (14) are located on the same straight line and are parallel to the side wall of the upper mold frame (1), and the low-pressure glue outlet (12) is arranged on the upper surface of the upper mold frame (1) in a surrounding mode.
3. The general molding device of a low pressure and a high pressure as claimed in claim 1, wherein the injection molding member (3) comprises a metal platen (31) and a connecting pipe (33), the connecting pipe (33) is disposed on the metal platen (31), a through hole is disposed on the metal platen (31), and the through hole is communicated with the connecting pipe (33).
4. The general forming device of a low pressure and high pressure of claim 3, wherein a mounting table (32) is arranged on the metal platen (31), the connecting pipe (33) is arranged on the mounting table (32), the mounting table (32) is inserted into the low pressure glue outlet (12) and the low pressure glue injection port (11), a sealing ring (34) is arranged around the mounting table (32), the sealing ring (34) is arranged on the surface of the metal platen (31), and the sealing ring (34) is arranged between the metal platen (31) and the upper mold frame (1).
5. The low and high pressure general forming device according to claim 1, wherein the edges of the periphery of the connecting surface of the upper die carrier (1) are respectively provided with a sealing groove, the sealing grooves are connected, the connecting surface of the lower die carrier (2) is correspondingly provided with a sealing strip (22), and the sealing strip (22) is matched with the sealing groove.
6. A general forming device for low and high pressure as claimed in claim 5, wherein a plurality of mounting grooves (21) are arranged on the outer side of the sealing strip (22), and height-adjustable gaskets are arranged in the mounting grooves (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023333106.3U CN214645126U (en) | 2020-12-30 | 2020-12-30 | Low-high pressure general forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023333106.3U CN214645126U (en) | 2020-12-30 | 2020-12-30 | Low-high pressure general forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214645126U true CN214645126U (en) | 2021-11-09 |
Family
ID=78506581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023333106.3U Withdrawn - After Issue CN214645126U (en) | 2020-12-30 | 2020-12-30 | Low-high pressure general forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214645126U (en) |
-
2020
- 2020-12-30 CN CN202023333106.3U patent/CN214645126U/en not_active Withdrawn - After Issue
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