CN112606354A - Be used for rubber tube production evacuating device - Google Patents

Be used for rubber tube production evacuating device Download PDF

Info

Publication number
CN112606354A
CN112606354A CN202110066068.XA CN202110066068A CN112606354A CN 112606354 A CN112606354 A CN 112606354A CN 202110066068 A CN202110066068 A CN 202110066068A CN 112606354 A CN112606354 A CN 112606354A
Authority
CN
China
Prior art keywords
shell
connecting frame
rubber tube
tube production
rotating shaft
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
Application number
CN202110066068.XA
Other languages
Chinese (zh)
Inventor
阳文峰
杨志强
毕桥胜
黄永超
颜振忠
于伟恒
张俊杰
张义芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou Aeon Hose Co ltd
Original Assignee
Guangzhou Aeon Hose Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangzhou Aeon Hose Co ltd filed Critical Guangzhou Aeon Hose Co ltd
Priority to CN202110066068.XA priority Critical patent/CN112606354A/en
Publication of CN112606354A publication Critical patent/CN112606354A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/14Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration
    • B29C48/146Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration in the die
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50Details of extruders
    • B29C48/76Venting, drying means; Degassing means
    • B29C48/763Vent constructions, e.g. venting means avoiding melt escape
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50Details of extruders
    • B29C48/76Venting, drying means; Degassing means
    • B29C48/765Venting, drying means; Degassing means in the extruder apparatus
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2791/00Shaping characteristics in general
    • B29C2791/004Shaping under special conditions
    • B29C2791/006Using vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a vacuumizing device for rubber tube production, which comprises an extruder head, an air inlet pipeline and a suction opening, wherein a finished product is arranged at the outlet of the extruder head, a guider is arranged on the finished product, a first rotating shaft is fixed inside the guider, a sealing cover is arranged on the right side of an extension section, an air bag is arranged inside the sealing cover, a material is clamped in the middle of the air bag, a first connecting frame is connected below the sealing cover, second nuts are distributed on the side surface of the second connecting frame, a first sealing gasket is connected between the first connecting frame and the second connecting frame, bolts penetrate through the first nuts and the second nuts, the air inlet pipeline is connected below the second connecting frame, and the suction opening is arranged below the extension section. This be used for rubber tube production evacuating device is provided with the gasbag, and the accessible gasbag presss from both sides to close the material sealed, and this kind of mode has solved prior art and has sealed the problem that can appear sealed inefficacy for a long time through the film.

Description

Be used for rubber tube production evacuating device
Technical Field
The invention relates to the technical field of vacuumizing devices, in particular to a vacuumizing device for rubber tube production.
Background
In the rubber tube production process, when extruding interior glue film or outer glue film, because interior glue film and flexible axle, or outer glue film and casing ply all are the laminating of two kinds of materials, if do not adopt evacuating device when extruding, the air is sneaked into along with flexible axle or casing ply import process from the back mouth easily, lead to easily having the air and not having the close laminating together between two kinds of materials, the space is great, cause the ghost absciss layer easily, influence going on of next process, and influence the stability of product size, it enlargies to have probably further inflation when vulcanization process experiences high temperature, form big bubble and scrap.
But in prior art the material gets into evacuating device's entry generally simple and crude, seal through the film usually, serious problem of wearing and tearing can appear after long-time the use in this kind of mode, lead to the gas tightness to reduce and influence off-the-shelf quality to and the connected mode of extraction opening and aircraft nose extension segment often is through threaded connection, set up like this and can lead to unable sealing washer to carry out the problem sealed. We have therefore proposed a vacuum extractor for hose production in order to solve the problems set out above.
Disclosure of Invention
The invention aims to provide a vacuumizing device for rubber tube production, which solves the problems that in the prior art, the inlet of a material entering the vacuumizing device is generally simple and crude, and is generally sealed by a rubber sheet, the air tightness is reduced, the quality of a finished product is affected, and the connection mode of an air suction opening and a machine head extension section is usually threaded, so that the sealing ring cannot be used for sealing.
In order to achieve the purpose, the invention provides the following technical scheme: a vacuumizing device for rubber tube production comprises an extrusion machine head, an air inlet pipeline and a suction opening, wherein a finished product is arranged at the outlet of the extrusion machine head, a guider is arranged on the finished product, a first rotating shaft is fixed inside the guider, a transverse roller is arranged on the first rotating shaft, a second rotating shaft is fixed inside the guider, a longitudinal roller is arranged on the second rotating shaft, a sliding groove is formed above the inside of the guider, a sliding rod is arranged inside the sliding groove, the right side of the extrusion machine head is connected with an extension section, a pressure gauge is arranged above the extension section, a sealing cover is arranged on the right side of the extension section, an air bag is arranged inside the sealing cover, a material is clamped in the middle of the air bag, a first connecting frame is connected below the sealing cover, first nuts are distributed on the side surface of the first connecting frame, and a second connecting frame is arranged below the first connecting frame, second nuts are distributed on the side face of the second connecting frame, a first sealing gasket is connected between the first connecting frame and the second connecting frame, bolts penetrate through the first nuts and the second nuts, an air inlet pipeline is connected to the lower portion of the second connecting frame, and a suction opening is formed in the lower portion of the extension section.
Preferably, the transverse rollers are movably connected with the first rotating shaft, the transverse rollers and the longitudinal rollers are in a perpendicular relation, and the bottom surfaces of the longitudinal rollers are higher than the top surfaces of the transverse rollers.
Preferably, the longitudinal rollers are in sliding connection in the sliding groove through the second rotating shaft and the sliding rod, and the two groups of the longitudinal rollers are arranged in the guider in a bilateral symmetry mode.
Preferably, the first connecting frame is fixed with the second connecting frame through threaded connection of a bolt, a first nut and a second nut, and the area size of the bottom surface of the first connecting frame is the same as that of the top surface of the second connecting frame.
Preferably, the suction port comprises a first shell, a second shell, a spring, a suction pipeline, a second sealing gasket, a third shell and a bearing, the second shell is arranged below the first shell, the spring is connected between the first shell and the second shell, the second sealing gasket is installed on the suction pipeline, the bearing is fixed inside the third shell, and the suction pipeline penetrates through the middle of the bearing.
Preferably, the third housing is connected with the second housing by a screw thread, and the suction pipe is connected with the third housing through a bearing.
Compared with the prior art, the invention has the beneficial effects that: this be used for rubber tube production evacuating device:
(1) the bearing, the suction pipeline and the second sealing gasket are arranged, and the suction pipeline can be separated through the bearing, so that the third shell and the second shell can be separated and rotated when in spiral connection, the second sealing gasket is prevented from being damaged when rotating, the sealing failure is avoided, and the device is more stable;
(2) be provided with the gasbag, the accessible gasbag carries out the clamping to the material and seals, and this kind of mode has solved prior art and has sealed the problem that can appear sealed inefficacy for a long time through the film, makes the material more stable in the entering device.
Drawings
FIG. 1 is a schematic view of the main structure of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic view of the structure of the sealing cap of the present invention;
FIG. 4 is a partial schematic view of the deflector of the present invention;
FIG. 5 is a schematic view of a partial structure of the connection between the sealing cover and the air inlet pipe according to the present invention;
fig. 6 is a partial structure view of the connection between the suction pipe and the extension segment according to the present invention.
In the figure: 1. extruding a machine head; 2. obtaining a finished product; 3. a guide; 4. a first rotating shaft; 5. a transverse roller; 6. a second rotating shaft; 7. a longitudinal roller; 8. a chute; 9. a slide bar; 10. an extension section; 11. a pressure gauge; 12. a sealing cover; 13. an air bag; 14. material preparation; 15. a first connection frame; 16. a first nut; 17. a first gasket; 18. a second connection frame; 19. a second nut; 20. a bolt; 21. an air intake duct; 22. a suction port; 2201. a first housing; 2202. a second housing; 2203. a spring; 2204. a suction duct; 2205. a second gasket; 2206. a third housing; 2207. and a bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a vacuumizing device for rubber tube production comprises an extruder head 1, a finished product 2, a guider 3, a first rotating shaft 4, a transverse roller 5, a second rotating shaft 6, a longitudinal roller 7, a sliding groove 8, a sliding rod 9, an extension section 10, a pressure gauge 11, a sealing cover 12, an air bag 13, a material 14, a first connecting frame 15, a first nut 16, a first sealing gasket 17, a second connecting frame 18, a second nut 19, a bolt 20, an air inlet pipeline 21 and a suction opening 22, wherein the finished product 2 is arranged at an outlet of the extruder head 1, the guider 3 is arranged on the finished product 2, the first rotating shaft 4 is fixed inside the guider 3, the transverse roller 5 is arranged on the first rotating shaft 4, the second rotating shaft 6 is fixed inside the guider 3, the longitudinal roller 7 is arranged on the second rotating shaft 6, the sliding groove 8 is arranged above the guider 3, the sliding rod 9 is arranged inside the sliding groove 8, the extension section 10 is connected to the right side of the extruder head 1, and install manometer 11 above extension section 10, extension section 10 has seted up on the right side sealed cowling 12, and sealed cowling 12 internally mounted has gasbag 13, the centre clamping of gasbag 13 has material 14, and sealed cowling 12 below is connected with first connecting frame 15, first connecting frame 15 side distribution has first nut 16, and first connecting frame 15 below is provided with second connecting frame 18, second connecting frame 18 side distribution has second nut 19, and be connected with first sealed pad 17 between first connecting frame 15 and the second connecting frame 18, it has bolt 20 to run through on first nut 16 and the second nut 19, and second connecting frame 18 below is connected with admission line 21, extension section 10 below is installed and is sucked mouth 22.
The transverse roller 5 is movably connected with the first rotating shaft 4, the transverse roller 5 and the longitudinal roller 7 are in a perpendicular relation, and the bottom surface of the longitudinal roller 7 is higher than the top surface of the transverse roller 5, so that the finished product 2 is fixed.
The longitudinal rollers 7 are in sliding connection in the sliding grooves 8 through the second rotating shafts 6 and the sliding rods 9, and the longitudinal rollers 7 are symmetrically arranged in the guider 3 in a left-right mode in two groups, so that the adjusting function is achieved, and the finished products 2 in different sizes can be adapted to.
The first connection frame 15 is fixed to the second connection frame 18 by the threaded connection of the bolt 20 with the first nut 16 and the second nut 19, and the area size of the bottom surface of the first connection frame 15 is the same as the area size of the top surface of the second connection frame 18, so that the device is more stable.
The suction port 22 comprises a first shell 2201, a second shell 2202, a spring 2203, a suction pipeline 2204, a second gasket 2205, a third shell 2206 and a bearing 2207, wherein the second shell 2202 is arranged below the first shell 2201, the spring 2203 is connected between the first shell 2201 and the second shell 2202, the second gasket 2205 is arranged on the suction pipeline 2204, the bearing 2207 is fixed in the third shell 2206, and the suction pipeline 2204 penetrates through the middle of the bearing 2207.
The third housing 2206 and the second housing 2202 are connected by a screw, and the suction pipe 2204 is connected to the third housing 2206 by a bearing 2207.
The working principle is as follows: when the vacuumizing device for rubber tube production is used, firstly, the material 14 is placed in the middle of the air bag 13, then the power supply is started, the air bag 13 is expanded through the air inlet pipeline 21 to clamp the material 14, then, the gas in the extension section 10 is sucked through the suction pipeline 2204 to form a vacuum state, the internal state is confirmed by observing the pressure gauge 11, then the material 14 enters the guider 3 after being processed through the extrusion machine head 1 to form a finished product 2, the transverse roller 5 and the longitudinal roller 7 are arranged in the guider 3 to be positioned, and the longitudinal roller 7 can slide in the sliding groove 8 through the adjusting slide rod 9, so that the adjusting function is realized, the device can be adapted to finished products 2 with different sizes, and the device is more practical.
When the air inlet pipe 21 is connected with the sealing cover 12, the first connecting frame 15 and the second connecting frame 18 can be connected only by screwing the bolt 20 with the first nut 16 and the second nut 19, the sealing is carried out by the first sealing gasket 17, then when the extension section 10 is connected with the suction pipe 2204, the extension section 10 can be connected with the suction pipe 2204 by screwing the third casing 2206 with the second casing 2202, the sealing performance is enhanced by adding the second sealing gasket 2205 between the extension section 10 and the suction pipe 2204, in order to prevent the second sealing gasket 2205 from being damaged when the second sealing gasket 2205 is connected, the suction pipe 2204 is connected with the third casing 2206 by the bearing 2207 to cut off the rotary power, and finally, the spring 2203 is added between the first casing 2201 and the second casing 2202 to prevent the problem of wire slipping after the third casing 2206 is rotated after the suction pipe 2204 is connected, the device is more stable, and the whole work flow is realized. And those not described in detail in this specification are well within the skill of those in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.

Claims (6)

1. The utility model provides a be used for rubber tube production evacuating device, includes extruder head (1), admission line (21) and suction opening (22), its characterized in that: the extrusion machine head (1) is provided with a finished product (2) at an outlet, a guider (3) is installed on the finished product (2), a first rotating shaft (4) is fixed inside the guider (3), a transverse roller (5) is arranged on the first rotating shaft (4), a second rotating shaft (6) is fixed inside the guider (3), a longitudinal roller (7) is installed on the second rotating shaft (6), a sliding groove (8) is formed above the inside of the guider (3), a sliding rod (9) is arranged inside the sliding groove (8), the right side of the extrusion machine head (1) is connected with an extension section (10), a pressure gauge (11) is installed above the extension section (10), a sealing cover (12) is arranged on the right side of the extension section (10), an air bag (13) is installed inside the sealing cover (12), a material (14) is clamped in the middle of the air bag (13), and a first connecting frame (15) is connected below the sealing cover (12), first linking frame (15) side distribution has first nut (16), and is provided with second linking frame (18) below first linking frame (15), second linking frame (18) side distribution has second nut (19), and is connected with first sealed pad (17) between first linking frame (15) and second linking frame (18), it has bolt (20) to run through on first nut (16) and second nut (19), and second linking frame (18) below is connected with admission line (21), suction mouth (22) are installed to extension section (10) below.
2. The evacuation device for rubber tube production according to claim 1, wherein: the transverse roller (5) is movably connected with the first rotating shaft (4), the transverse roller (5) and the longitudinal roller (7) are in a vertical relation, and the bottom surface of the longitudinal roller (7) is higher than the top surface of the transverse roller (5).
3. The evacuation device for rubber tube production according to claim 1, wherein: the longitudinal rollers (7) are in sliding connection in the sliding groove (8) through the second rotating shaft (6) and the sliding rod (9), and the longitudinal rollers (7) are symmetrically arranged in two groups in the guider (3) in the left-right direction.
4. The evacuation device for rubber tube production according to claim 1, wherein: the first connecting frame (15) is in threaded connection with the first nut (16) and the second nut (19) through bolts (20) and is fixed with the second connecting frame (18), and the area size of the bottom surface of the first connecting frame (15) is the same as that of the top surface of the second connecting frame (18).
5. The evacuation device for rubber tube production according to claim 1, wherein: the suction port (22) comprises a first shell (2201), a second shell (2202), a spring (2203), a suction pipeline (2204), a second sealing gasket (2205), a third shell (2206) and a bearing (2207), wherein the second shell (2202) is arranged below the first shell (2201), the spring (2203) is connected between the first shell (2201) and the second shell (2202), the second sealing gasket (2205) is installed on the suction pipeline (2204), the bearing (2207) is fixed inside the third shell (2206), and the suction pipeline (2204) penetrates through the middle of the bearing (2207).
6. The evacuation device for rubber tube production according to claim 5, wherein: the third shell (2206) is connected with the second shell (2202) in a threaded manner, and the suction pipeline (2204) is connected with the third shell (2206) through a bearing (2207).
CN202110066068.XA 2021-01-19 2021-01-19 Be used for rubber tube production evacuating device Pending CN112606354A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110066068.XA CN112606354A (en) 2021-01-19 2021-01-19 Be used for rubber tube production evacuating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110066068.XA CN112606354A (en) 2021-01-19 2021-01-19 Be used for rubber tube production evacuating device

Publications (1)

Publication Number Publication Date
CN112606354A true CN112606354A (en) 2021-04-06

Family

ID=75254483

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110066068.XA Pending CN112606354A (en) 2021-01-19 2021-01-19 Be used for rubber tube production evacuating device

Country Status (1)

Country Link
CN (1) CN112606354A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0913928A (en) * 1995-06-29 1997-01-14 Kondo Lacing Gareeji:Kk Oil sucking device
CN205781543U (en) * 2016-05-28 2016-12-07 中国船舶重工集团公司第七一九研究所 A kind of pressure-air pipe flange
CN206605755U (en) * 2017-04-11 2017-11-03 河北泰沃塑管有限公司 A kind of carat control is for mould
WO2018112984A1 (en) * 2016-12-24 2018-06-28 付建志 Plastic hollow pipe guiding device
CN208896467U (en) * 2018-08-14 2019-05-24 湖北钟格塑料管有限公司 A kind of PVC pipe sizing mill
CN209084279U (en) * 2018-11-19 2019-07-09 高庆锋 A kind of pipeline closes water pressure testing fast plugging device
CN210830885U (en) * 2019-10-12 2020-06-23 张曰良 Sealed peripheral equipment for building electric pipeline

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0913928A (en) * 1995-06-29 1997-01-14 Kondo Lacing Gareeji:Kk Oil sucking device
CN205781543U (en) * 2016-05-28 2016-12-07 中国船舶重工集团公司第七一九研究所 A kind of pressure-air pipe flange
WO2018112984A1 (en) * 2016-12-24 2018-06-28 付建志 Plastic hollow pipe guiding device
CN206605755U (en) * 2017-04-11 2017-11-03 河北泰沃塑管有限公司 A kind of carat control is for mould
CN208896467U (en) * 2018-08-14 2019-05-24 湖北钟格塑料管有限公司 A kind of PVC pipe sizing mill
CN209084279U (en) * 2018-11-19 2019-07-09 高庆锋 A kind of pipeline closes water pressure testing fast plugging device
CN210830885U (en) * 2019-10-12 2020-06-23 张曰良 Sealed peripheral equipment for building electric pipeline

Similar Documents

Publication Publication Date Title
CN212844210U (en) Bearing sealing performance detection device
CN208182375U (en) A kind of adjustable wrap-up of BOPP film cutting machine
CN112606354A (en) Be used for rubber tube production evacuating device
CN212263908U (en) Valve inside coring and classifying device
CN218236539U (en) Flow monitoring mechanism
CN210939395U (en) Cutting device of PE plastic film blowing machine
CN212482795U (en) Internal expansion sealing device for air tightness detection of automobile exhaust pipeline
CN209869980U (en) Air-retaining structure of pneumatic tire
CN211390086U (en) Sizing cooling structure of polyether-ether-ketone pipe
CN207786588U (en) A kind of process unit producing light anti-aging agent ODA
CN207351804U (en) A kind of clamp assembly of sheet material stretching machine
CN213900318U (en) Flow guiding air bag
CN217463560U (en) Air inlet pipe with dust removal structure for air separation equipment
CN209542024U (en) Motor air tightness test tooling
CN218271280U (en) Pressure pipeline airtightness detection device
CN208795429U (en) A kind of mold air-tightness detection device
CN215448373U (en) Be applied to gas tightness detection device of valve processing
CN213618310U (en) Vacuum negative pressure plastic suction mould
CN213762932U (en) Positive pressure inflation side leakage detection die
CN217304292U (en) Building exterior window air tightness detection device
CN219903400U (en) Waterproof moisture permeable composite film laminating device
CN217845563U (en) Battery package gas tightness detection device
CN212021606U (en) Air plug of plastic extruder
CN212045832U (en) Plastic package mold evacuating device
CN216784506U (en) Safety breather valve for oil tank

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: 20210406

RJ01 Rejection of invention patent application after publication