CN105922544B - Vacuum extractor for vacuum setting machine - Google Patents

Vacuum extractor for vacuum setting machine Download PDF

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Publication number
CN105922544B
CN105922544B CN201610379018.6A CN201610379018A CN105922544B CN 105922544 B CN105922544 B CN 105922544B CN 201610379018 A CN201610379018 A CN 201610379018A CN 105922544 B CN105922544 B CN 105922544B
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CN
China
Prior art keywords
vacuum
babinet
valve
setting machine
negative pressure
Prior art date
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Active
Application number
CN201610379018.6A
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Chinese (zh)
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CN105922544A (en
Inventor
林晓东
王福春
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NINGBO FANGLI TECHNOLOGY Co Ltd
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NINGBO FANGLI TECHNOLOGY Co Ltd
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Priority to CN201610379018.6A priority Critical patent/CN105922544B/en
Publication of CN105922544A publication Critical patent/CN105922544A/en
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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
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/905Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using wet calibration, i.e. in a quenching tank
    • 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
    • B29C48/88Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00Tubular articles

Abstract

The present invention provides a kind of vacuum extractors for vacuum setting machine, belong to vacuum setting machine technical field.It solves the problems, such as that existing vacuum extractor regulating effect is poor.Originally include for vacuum extractor of vacuum setting machine:Babinet with water inlet pipe and outlet pipe, gas deflation assembly, including is set on babinet and at least one detaches pot with what outlet pipe communicated;One end of vacuum pump, the vacuum pump is connected with water inlet pipe and babinet respectively, and the other end of vacuum pump is connected with pot is detached;Regulation component is set to the negative pressure on babinet and in energy regulating box;The vacuum pump continue working can be such that the negative pressure in babinet constantly increases, and the regulation component can reduce the negative pressure in babinet and the negative pressure in babinet is made to keep fluctuating within a preset range.This vacuum extractor for being used for vacuum setting machine has the advantages that regulating effect is good, work efficiency is high.

Description

Vacuum extractor for vacuum setting machine
Technical field
The invention belongs to vacuum setting machine technical fields, are related to a kind of vacuum extractor for vacuum setting machine.
Background technology
On tubing manufacturing line, the tubing usually after molding machine comes out needs the sizing work by vacuum setting machine Skill.It is vacuumized in technological process in vacuum setting machine and cooling step, specifically, when proximate matter is from forming machine When front end enters shaping cover, pass through vacuum and cooling process in forming machine at this time so that proximate matter is inside and outside to be generated pressure difference and utilize Pressure difference realizes the sizing of proximate matter.
In the prior art, although being provided with vacuum extractor on forming machine, in the forming machine course of work, existing pumping Vacuum plant can only adjust vacuum magnitude in forming machine manually by user, be easy to cause the excessive phenomenon of negative pressure in forming machine It generates, affects the working efficiency of forming machine.To solve the problems, such as that existing forming machine vacuum extractor cannot automatically adjust, need Design a kind of vacuum extractor for vacuum setting machine that regulating effect is good.
Invention content
The purpose of the present invention is there is the above problem in view of the prior art, it is proposed that a kind of regulating effect is good, work is imitated The high vacuum extractor for vacuum setting machine of rate.
Object of the invention can be realized by the following technical scheme:For the vacuum extractor of vacuum setting machine, including:
Babinet, with water inlet pipe and outlet pipe;
Gas deflation assembly, including be set on babinet and at least one detach pot with what outlet pipe communicated;
One end of vacuum pump, the vacuum pump is connected with water inlet pipe and babinet respectively, the other end of vacuum pump with detach pot It is connected;
Regulation component is set to the negative pressure on babinet and in energy regulating box;
The vacuum pump continue working can be such that the negative pressure in babinet constantly increases, and the regulation component can reduce in babinet Negative pressure simultaneously makes the negative pressure in babinet keep fluctuating within a preset range.
In the above-mentioned vacuum extractor for vacuum setting machine, the babinet can be divided into cup and rear chamber, described true Sky pump and the pot quantity that detaches corresponding with vacuum pump are two, and two vacuum pumps are connected with cup and rear chamber respectively.
In the above-mentioned vacuum extractor for vacuum setting machine, the separation pot includes main body;
Input pipe is set to main body side and is connected with vacuum pump;
Exhaust pipe is set to the upper surface of main body and exhaust pipe lower end and stretches into main body;
Drainpipe is set to the lower surface of main body and is communicated with main body, and the drainpipe is connected with outlet pipe.
In the above-mentioned vacuum extractor for vacuum setting machine, if the transverse direction in exhaust pipe and being arranged in parallel with Dry baffle, the baffle are staggered on the two side of exhaust pipe, and one end of baffle is connected with exhaust inside pipe wall, baffle it is another One end is hanging.
In the above-mentioned vacuum extractor for vacuum setting machine, the quantity of the baffle is two pieces, two block baffles point It is not arranged in parallel on the inner wall of exhaust pipe both sides.
In the above-mentioned vacuum extractor for vacuum setting machine, the regulation component include be set on babinet and with The hand-operated valve and vacuum valve that babinet communicates, the vacuum valve can automatically adjust babinet negative pressure, the hand-operated valve energy when vacuum defective valve Normal work.
In the above-mentioned vacuum extractor for vacuum setting machine, the vacuum valve includes:
Valve body is set on babinet and offers the mounting groove communicated with babinet on the end face of valve body;
Connector is set on valve body and is communicated with mounting groove;
Pull rod is movably arranged in valve body, and one end of the pull rod extends upward through mounting groove inner wall and protruding The other end of valve body, pull rod is provided with valve, and the valve is set to the lower section in mounting groove and positioned at connector;
The pull rod energy band movable valve is mobile in mounting groove and connector can be made to block or be connected with forming machine.
In the above-mentioned vacuum extractor for vacuum setting machine, it is arranged with valve deck in valve body upper end, in valve deck and valve Spring is provided between body, the both ends of the spring are connected with valve deck and valve body respectively.
In the above-mentioned vacuum extractor for vacuum setting machine, the pull rod upper end is through valve deck and is provided with spiral shell Mother has convexed to form boss in pull rod lower end, is provided with washer on pull rod, and the valve is between boss and washer and valve The both ends of door are connected with boss and washer respectively.
In the above-mentioned vacuum extractor for vacuum setting machine, it is provided with what babinet communicated on the upper surface of babinet Air outlet valve, the air outlet valve are connected with vacuum pump.
Compared with prior art, the present invention at least has the advantages that;The present invention includes babinet, is arranged on babinet There are gas deflation assembly, vacuum pump and regulation component, the gas in babinet is constantly discharged vacuum-energy by gas deflation assembly makes babinet Interior negative pressure state, vacuum pump continue working can be such that negative pressure constantly increases, and extraneous gas can be directed into babinet by regulation component And the internal pressure of babinet is kept to fluctuate within a preset range, to ensure that the normal work of vacuum setting machine, improve work effect Rate.
Description of the drawings
Fig. 1 is the stereogram of the present invention.
Fig. 2 is the front view of the present invention.
Fig. 3 is the structural schematic diagram that pot is detached in a preferred embodiment of the present invention.
Fig. 4 is the structural schematic diagram for inventing another visual angle of separation pot in a preferred embodiment.
Fig. 5 is the sectional view for inventing vacuum valve in a preferred embodiment.
In figure, 101, cup;102, rear chamber;110, water inlet pipe;120, outlet pipe;200, pot is detached;210, main body;220, Input pipe;230, exhaust pipe;231, baffle;240, drainpipe;300, vacuum pump;400, hand-operated valve;410, vacuum valve;411, valve Body;411a, mounting groove;412, connector;413, pull rod;413a, boss;414, valve deck;414a, elastic component;415, nut;416, Washer;417, valve;418, sleeve;500, air outlet valve.
Specific implementation mode
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described, However, the present invention is not limited to these examples.
Be respectively arranged at the both ends of babinet has sizing with calibration sleeve similar in pipe diameter and copper pipe, tubing by babinet The importing of one end is covered, and is exported from babinet with copper pipe one end, simultaneously because the diameter of the diameter and tubing of calibration sleeve and copper pipe It is close, subnormal ambient can be formed in babinet, the pressure difference of tubing inner and outer surfaces can realize the sizing of tubing.
As shown in Figures 1 to 5, this includes for the vacuum extractor of vacuum setting machine:
Babinet, with water inlet pipe 110 and outlet pipe 120;
Gas deflation assembly, including be set on babinet and at least one detach pot 200 with what outlet pipe 120 communicated;
One end of vacuum pump 300, the vacuum pump 300 is connected with water inlet pipe 110 and babinet respectively, vacuum pump 300 it is another One end is connected with pot 200 is detached;
Regulation component is set to the negative pressure on babinet and in energy regulating box;
It is opened 300 working hour of vacuum pump, vacuum pump 300 can incite somebody to action based on above-mentioned technical characteristic due to being sealed environment in babinet The air-flow of babinet, which detaches and babinet is discharged by gas deflation assembly, to form negative pressure state in babinet, in order to avoid vacuum pump 300 Continue working leads to the generation of the excessive phenomenon of the negative pressure in babinet, and the pressure regulation that air-flow can be directed into babinet is provided on babinet Component and regulation component can make the negative pressure in babinet determine to fluctuate in range, ensure that the accuracy of tubing sizing.
Babinet is divided into cup 101 and rear chamber 102, and the wherein negative pressure of cup 101 mainly controls the outer diameter for determining tubing, rear chamber 102 negative pressure can control determine tubing circularity, to be respectively arranged on cup 101 and rear chamber 102 vacuum pump 300 and with The connected separation pot 200 of vacuum pump 300 so that the negative pressure of cup 101 and rear chamber 102 can be fitted according to actual needs Answering property adjusts, and improves the service efficiency of the present invention.
The air outlet valve 500 that babinet communicates is provided on babinet, air outlet valve 500 is connected with vacuum pump 300.
Above-mentioned vacuum pump 300 is preferably water ring vacuum pump 300, and water ring vacuum pump 300 can pass through the change of pump chamber internal volume Change to realize air-breathing, compression and exhaust and there is good leakproofness, shortens pumpdown time in babinet, improve the present invention's Working efficiency.
Preferably, above-mentioned separation pot 200 includes the cylindrical main body 210 of shape, the side of main body 210 be fixed with The input pipe 220 that main body 210 communicates is provided with exhaust pipe 230 in 210 upper surface of main body and portion discharge pipe 230 stretches into main body In 210, the lower surface of main body 210 is provided with the drainpipe 240 communicated with main body 210 and drainpipe 240 and 120 phase of outlet pipe Even, aqueous vapor can be directed by input pipe 220 in main body 210 by vacuum pump 300, and aqueous vapor can complete aqueous vapor separation in main body 210, So that gas is exported by exhaust pipe 230 to the external world and liquid is directed by drainpipe 240 in outlet pipe 120.
Further, vacuum pump 300 is mingled with more aqueous vapor by air-flow derived from input pipe 220, in order to avoid upper It is introduced directly into derived aqueous vapor to exhaust pipe 230 in input pipe 220, leads to the blocking of exhaust pipe 230 and influence exhaust pipe The generation of 230 exhaust efficiency phenomenon, the lowermost vertical height of above-mentioned exhaust pipe 230 are less than the vertical height of input pipe 220 Degree ensures that air-flow derived from input pipe 220 is sputtered onto on the outer wall of exhaust pipe 230, ensure that the normal work of separation pot 200.
Further, transverse direction and several baffles 231 are arranged in parallel in drainpipe 240, baffle 231 is staggered in row On the inner wall of water pipe 240, one end of baffle 231 is connected with 240 inner wall of drainpipe, and the other end of baffle 231 is hanging, adjacent two It is formed with gap between baffle 231 so that gas can be exported by gap and by the upper end of exhaust pipe 230 to the external world, and liquid Then main body 210 is flow back into along 231 wall of baffle and be expelled in outlet pipe 120 by drainpipe 240.
Further, the quantity of above-mentioned baffle 231 is two pieces, and two block baffles 231 are arranged in parallel in 240 liang of drainpipe respectively On inner wall, the radical length of baffle 231 is more than the radius of exhaust pipe 230 to be mutually staggered in two baffles 231, ensures gas energy By the gap between two baffles 231, while also avoiding liquid from blocking exhaust pipe 230 and influencing the exhaust efficiency of exhaust pipe 230 The generation of phenomenon.
Above-mentioned regulation component includes the hand-operated valve 400 and vacuum valve 410 for being set on babinet and being communicated with babinet, normal Under working condition, vacuum valve 410 is opened and hand-operated valve 400 is closed, and vacuum valve 410 can automatically adjust babinet negative pressure and ensure babinet Interior negative pressure fluctuates within a preset range;When vacuum valve 410 fails, user can open hand-operated valve 400 manually can be to protect Demonstrate,prove the normal work of the present invention.
Above-mentioned vacuum valve 410 includes:Valve body 411 is set on babinet and is offered on the end face of valve body 411 and case The mounting groove 411a that body communicates;
Connector 412 is set on valve body 411 and is communicated with mounting groove 411a;
Pull rod 413 is movably arranged in valve body 411, and one end of the pull rod 413 extends upward through in mounting groove 411a The other end of wall and protruding valve body 411, pull rod 413 is provided with valve 417, and the valve 417 is set to mounting groove 411a Lower section interior and positioned at connector 412;
413 energy band movable valve 417 of the pull rod is mobile in mounting groove 411a and connector 412 can be made to block or lead with babinet It is logical.
Above-mentioned valve 417 is arranged in mounting groove 411a, and the side of valve 417 is communicated with babinet, the other side of valve 417 It communicating with the external world, pressure caused by 417 both sides pressure difference of valve cannot drive 413 vertical shift of pull rod in normal state, To which valve 417 contacts with mounting groove 411a inner walls and blocks connector 412 and the connections of mounting groove 411a between the two;Work as babinet Interior negative pressure is excessive and so that pressure is when reaching certain value caused by 417 both sides pressure difference of valve, and pressure energy drives pull rod 413 Vertical shift simultaneously makes to be formed with gap between valve 417 and mounting groove 411a inner walls, to which extraneous air-flow can be led by gap Entering in babinet reduces the negative pressure in babinet, and the negative pressure in guard box body is maintained at preset range fluctuation.
Preferably, the from top to bottom gradual increased conical surface of diameter is offered in valve 417, on the inner wall of mounting groove 411a Cone tank corresponding with the conical surface is offered, the conical surface is located in cone tank, and in the initial state, pull rod 413 is by straight up Pulling force is so that the conical surface contacts with the inner wall of cone tank and extraneous and babinet can be made to be in blocking state, when the negative pressure in babinet Excessive and so that pressure is when reaching certain value caused by 417 both sides pressure difference of valve, pressure energy drives 413 vertical shift of pull rod And make to be formed with gap between valve 417 and cone tank inner wall, to which extraneous air-flow can be by gap be directed into babinet The negative pressure in babinet is reduced, to which the negative pressure in guard box body is maintained at preset range fluctuation.
Further, the threaded upper ends of pull rod 413 being provided with nut 415, the lower end of nut 415 is connected with valve body 411, Pull rod 413 can be driven to move in the vertical direction when circumferentially rotating nut 415, in the initial state, nut 415 can lock pull rod 413 make the conical surface be in close contact with cone tank inner wall so that babinet keeps blocking state with connector 412;It uses in use Person's energy rotating nut 415 makes pull rod 413 be in relaxation state, to which pressure caused by 417 both ends pressure difference of valve reaches pre- When definite value, pressure energy drives pull rod 413 to move straight down so that it is formed with gap between the conical surface and conical surface slot inner wall, it is extraneous Air-flow can be directed by gap in babinet, and the negative pressure holding in guard box body is fluctuated within a preset range.
Further, it is arranged with valve deck 414 in 411 upper end of valve body, be arranged between valve deck 414 and valve body 411 flexible The both ends of part 414a, elastic component 414a are born against on valve deck 414 and valve body 411, and pull rod 413 passes through elastic component 414a and valve Lid 414 is simultaneously connected with nut 415, and nut 415 is resisted against 414 upper surface of valve deck, and in the initial state, elastic component 414a is compressed And elastic force is generated, spring energy makes the conical surface be contacted with cone tank inner wall so that babinet keeps blocking state with connector 412;It is working In the process, when the pressure caused by the 417 both ends pressure difference of valve is more than elastic force, pressure energy makes pull rod 413 drive valve deck 414 perpendicular It directly moves downward, to be formed with gap between the conical surface and conical surface slot inner wall, external air flow can be directed into babinet by gap Interior, the negative pressure holding in guard box body is fluctuated within a preset range, while pull rod 413 drives valve deck 414 to be moved through straight down Spring part generates elastic force straight up by compression energy in journey, when the elastic force caused by the pressure difference is less than elastic force, elastic component 414a can draw lid as valve 417 returns back to initial position, realize the negative pressure value in energy automatic control stuff box body of the invention.
Preferably, sleeve 418 is provided in valve body 411, sleeve 418 is in close contact with 411 inner wall of valve body and is limited Sleeve 418 circumferentially rotates, and 413 part of above-mentioned pull rod is arranged in sleeve 418,
Further, protrusion is formed with boss 413a on pull rod 413, and washer 416, valve are additionally provided on pull rod 413 417 between boss 413a and washer 416 and the both ends of valve 417 are connected with boss 413a and washer 416 respectively for door, avoids Valve 417 moves along pull rod 413 and influences the generation that valve 417 works normally phenomenon in the axial direction, ensure that this The normal work of invention.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.

Claims (8)

1. the vacuum extractor for vacuum setting machine, which is characterized in that including:
Babinet, is divided into cup and rear chamber, and the babinet has water inlet pipe and outlet pipe;
Gas deflation assembly, including be set on babinet and with outlet pipe communicate it is at least one detach pot, separation pot includes that shape is in Columned main body;
One end of vacuum pump, the vacuum pump is connected with water inlet pipe and babinet respectively, and the other end of vacuum pump is connected with pot is detached, Vacuum pump and the pot quantity that detaches corresponding with vacuum pump are two, and two vacuum pumps are connected with cup and rear chamber respectively;
Regulation component is set to the negative pressure on babinet and in energy regulating box;
The vacuum pump continue working can be such that the negative pressure in babinet constantly increases, and the regulation component can reduce the negative pressure in babinet And the negative pressure in babinet is made to keep fluctuating within a preset range;
Input pipe is fixedly arranged on main body side and is communicated with main body, and described input pipe one end is connected with vacuum pump;
Exhaust pipe is set to the upper surface of main body and exhaust pipe lower end and stretches into main body, and described exhaust pipe the lowermost is vertical Height is less than the input pipe vertical height;
Drainpipe is set to the lower surface of main body and is communicated with main body, and the drainpipe is connected with outlet pipe.
2. the vacuum extractor according to claim 1 for vacuum setting machine, which is characterized in that horizontal in the exhaust pipe To and be arranged in parallel with several baffles, the baffle is staggered on the two side of exhaust pipe, one end of baffle and exhaust pipe Inner wall is connected, and the other end of baffle is hanging.
3. the vacuum extractor according to claim 2 for vacuum setting machine, which is characterized in that the quantity of the baffle It it is two pieces, two block baffles are arranged in parallel in respectively on the inner wall of exhaust pipe both sides.
4. the vacuum extractor according to claim 1 or 3 for vacuum setting machine, which is characterized in that the pressure regulation group Part includes the hand-operated valve and vacuum breaker for being set on babinet and being communicated with babinet, the vacuum breaker energy automatic control stuff box Body negative pressure, when vacuum conditions defective valve, hand-operated valve can work normally.
5. the vacuum extractor according to claim 4 for vacuum setting machine, which is characterized in that the vacuum breaker Including:
Valve body is set on babinet and offers the mounting groove communicated with babinet on the end face of valve body;
Connector is set on valve body and is communicated with mounting groove;
Pull rod is movably arranged in valve body, and one end of the pull rod extends upward through mounting groove inner wall and protruding valve body, The other end of pull rod is provided with valve, and the valve is set to the lower section in mounting groove and positioned at connector;
The pull rod energy band movable valve is mobile in mounting groove and connector can be made to block or be connected with forming machine.
6. the vacuum extractor according to claim 5 for vacuum setting machine, which is characterized in that be arranged in valve body upper end There is valve deck, spring is provided between valve deck and valve body, the both ends of the spring are connected with valve deck and valve body respectively.
7. the vacuum extractor according to claim 6 for vacuum setting machine, which is characterized in that pull rod upper end is passed through It wears valve deck and is provided with nut, boss has been convexed to form in pull rod lower end, washer is provided on pull rod, the valve is located at convex Between the platform and washer and both ends of valve are connected with boss and washer respectively.
8. the vacuum extractor according to claim 7 for vacuum setting machine, which is characterized in that in the upper surface of babinet On be provided with the air outlet valve that babinet communicates, the air outlet valve is connected with vacuum pump.
CN201610379018.6A 2016-05-31 2016-05-31 Vacuum extractor for vacuum setting machine Active CN105922544B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610379018.6A CN105922544B (en) 2016-05-31 2016-05-31 Vacuum extractor for vacuum setting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610379018.6A CN105922544B (en) 2016-05-31 2016-05-31 Vacuum extractor for vacuum setting machine

Publications (2)

Publication Number Publication Date
CN105922544A CN105922544A (en) 2016-09-07
CN105922544B true CN105922544B (en) 2018-10-30

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102152465A (en) * 2011-01-14 2011-08-17 华瀚科技有限公司 Forming equipment of extruding strip of plastic-steel winding tube
CN203962344U (en) * 2014-07-24 2014-11-26 奉化意格特机械制造有限公司 A kind of used for air compressor minimum pressure valve
CN205685706U (en) * 2016-05-31 2016-11-16 宁波方力科技股份有限公司 Vacuum extractor for vacuum setting machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102152465A (en) * 2011-01-14 2011-08-17 华瀚科技有限公司 Forming equipment of extruding strip of plastic-steel winding tube
CN203962344U (en) * 2014-07-24 2014-11-26 奉化意格特机械制造有限公司 A kind of used for air compressor minimum pressure valve
CN205685706U (en) * 2016-05-31 2016-11-16 宁波方力科技股份有限公司 Vacuum extractor for vacuum setting machine

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