CN105965857B - Can mould internal cutting blow mold and blow molding components formed device - Google Patents
Can mould internal cutting blow mold and blow molding components formed device Download PDFInfo
- Publication number
- CN105965857B CN105965857B CN201610463447.1A CN201610463447A CN105965857B CN 105965857 B CN105965857 B CN 105965857B CN 201610463447 A CN201610463447 A CN 201610463447A CN 105965857 B CN105965857 B CN 105965857B
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- cutting
- blow
- pipe fitting
- cutter
- blow molding
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/50—Moulds having cutting or deflashing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The present invention provides it is a kind of can mould internal cutting blow mold, first cut to obtain pipe fitting again to blank blow molding can be blow molded, it is characterized in that, it include: blow molding portion, for to can be blow molded blank carry out blow molding obtain pipe fitting semi-finished product, the blow molding portion includes two the first cavity plates and the second cavity plate for being mutually interlocked and being formed pipe fitting shape chamber, the pre-position of first cavity plate and the second cavity plate is respectively arranged at least one first cutting seam and at least one second cutting seam, first cutting seam and the second cutting are sewn on coplanar on the fastening direction of the first cavity plate and the second cavity plate；Cutting part stitches at least two actuators cut to pipe fitting semi-finished product across the first cutting seam and the second cutting with stitching the first cutter to match and the second cutter with the first cutting seam and the second cutting respectively and respectively driving the first cutter and the second cutter.The pipe fitting semi-finished product in blow molding portion are cut by cutting seam of the cutter in blow molding portion and directly obtain pipe fitting in blow mold, realize two processes of molding and cutting using a mold.
Description
Technical field
The present invention relates to field of machining, especially a kind of blow mold and including the mold blow molding components plus
Tooling is set.
Background technique
During being blow molded to form tubular member that both ends communicate using blow moulding machine, it is common practice to be blown using blow moulding machine
Then moulding opens blow mold at a hollow closed cryptomere part blank is obtained, take out cryptomere part blank, according to setting
Meter requires, and carries out cutting to the both ends of the cryptomere part blank to obtain the tubular member communicated to both ends.
Obviously above-mentioned usual way needs to take out part blank after being opened, and then carries out individual blank cutting action.
Independent increased blank cutting action not only needs to expend additional product turnover parts and storehouse resource, but also labor intensive,
It is easy to happen in more serious thing cutting process because of cutting deformation, cutting position caused by the reasons such as worker's cutting operation is improper
Error, these can all generate rejected part, increase production cost in rain.On the other hand, due to being cut in cutting operation process
The pipe fitting part quality situation that operational instrument, the difference of operator also result in production is different to which product quality wave occur
It is dynamic, it is unfavorable for the standardization of enterprise and stabilizes quality production.
Summary of the invention
The present invention is to propose in order to solve the above problem, provide it is a kind of can mould internal cutting blow mold and blow molding zero
Component forms device, realizes and completes cutting operation inside blow mold and directly produce tubular member.
The present invention provides it is a kind of can mould internal cutting blow mold, first cut again to blank blow molding can be blow molded
Obtain pipe fitting characterized by comprising blow molding portion, for can be blow molded blank carry out blow molding obtain pipe fitting half at
Product, the blow molding portion include two and are mutually interlocked and are formed the first cavity plates and the second cavity plate of pipe fitting shape chamber, the first cavity plate and
The pre-position of second cavity plate is respectively arranged at least one first cutting seam and at least one second cutting seam, the first cutting
Seam and the second cutting are sewn on coplanar on the fastening direction of the first cavity plate and the second cavity plate；Cutting part has and cuts respectively with first
The first cutter and the second cutter and respectively drive the first cutter and the second cutting that seam and the second cutting seam match
Knife passes through at least two actuators that the first cutting seam and the second cutting seam cut pipe fitting semi-finished product.
It is provided by the invention can mould internal cutting blow mold, can also have the following features: wherein, cutting seam along
The circumferential setting of the cross section of pipe fitting.
It is provided by the invention can mould internal cutting blow mold, can also have the following features: wherein, the first cutter
In knife edge part insertion the first cutting seam and the second cutting seam of the second cutter, the knife of the first cutter and the second cutter
Back portion exposes the first cutting seam and stitches with the second cutting and connect with actuator.
It is provided by the invention can mould internal cutting blow mold, can also have the following features: wherein, actuator is gas
Moving part, pneumatic member have pneumatic cylinder and push rod, and push rod is connect with the knife spine of the first cutter and the second cutter, in pneumatic cylinder
Drive of high-pressure gas push rod drive the cutter of connection to be cut.
It is provided by the invention can mould internal cutting blow mold, can also have the following features: wherein, set on cutter
It is equipped with the notch to match with the shape of pipe fitting semi-finished product, the blade for cutting is provided on notch.
It is provided by the invention can mould internal cutting blow mold, can also have the following features: wherein, cutting part also has
There is the broach shell being fixed on the outer wall of the first cavity plate and the second cavity plate, which cuts for entangling the first cutter and second
Cutter.
The present invention also provides a kind of blow molding components to form device, and the blow molding of blow molding blank is obtained pipe fitting,
It is characterized in that, comprising: feed portion is blow molded blank for supply certain temperature；Blow mold, for can be blow molded blank into
Row blow molding and cut obtain pipe fitting；Control unit, for controlling the work in feed portion and blow mold, wherein blow mold
For it is above-mentioned can mould internal cutting blow mold.
Blow molding components provided by the invention form device, can also have the following features: wherein, and feed portion includes storage
Hopper, auger conveyor and heater, heater are arranged on auger conveyor, and the auger conveyor is by blowing in storage hopper
It obtains that blank can be blow molded after modeling blank heating and is transported in blow mold.
Invention action and effect
There is provided according to the present invention can mould internal cutting blow mold, due to having the cutting that is arranged in blow molding portion
Portion, when being blow molded in blow molding portion blank is blow-molded obtain pipe fitting semi-finished product after, pass through the cutter in cutting part
In blow molding portion cutting seam to the pipe fitting semi-finished product in blow molding portion cut and directly in blow mold
Pipe fitting is obtained, realizes two processes of molding and cutting using a mold.Whole process is completed by a device, saves people
Work, while the product that a mold generates ensure that the high-quality of finished product and the stability of product quality.
Detailed description of the invention
Fig. 1 is that the blow molding components of the embodiment of the present invention form apparatus structure schematic diagram；
Fig. 2 is the structural schematic diagram of the blow mold of the embodiment of the present invention, and a is schematic diagram when fastening, and b is that cavity plate is opened
Partial schematic diagram afterwards；
Fig. 3 is the schematic diagram in blow mold in cutter insertion cutting seam but when not cutting；And
Fig. 4 is that the schematic diagram after being over is cut in cutter insertion cutting seaming and cutting in blow mold.
Specific embodiment
It is real below in order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention
Apply structure and application method that example combination attached drawing forms device to the blow mold of mould internal cutting of the invention and blow molding components
It is specifically addressed.
Fig. 1 is that the blow molding components of the present embodiment form apparatus structure schematic diagram.
As shown in Figure 1, it includes feed portion 2, blow mold 100 and control unit 6 that blow molding components, which form device 1,.
Feed portion 2 has storage hopper 3, auger conveyor 4 and heater 5.
Storage hopper 3 can be blow molded blank for launching, be arranged in above the import of auger conveyor 4.
The shell of auger conveyor 4 installs having heaters 5, which is used to be blow molded to what auger conveyor 4 conveyed
Blank is heated.
5 sets of heater on the shell of auger conveyor 4, connect with control unit 6, and heating temperature is controlled by control unit.
It can be blow molded after blank is put by storage hopper 3 and fall in auger conveyor 4, which obtains after heating
To the blank that is blow molded be transported in blow mold 100.
Fig. 2 is the structural schematic diagram of the blow mold of the present embodiment, and a is schematic diagram when fastening, and b is after cavity plate is opened
Partial schematic diagram.
As shown in Fig. 2, blow mold 100 carries out blow molding and cut to obtain pipe fitting for that can be blow molded blank, have
Blow molding portion 10 and cutting part 20.
As shown in Fig. 2 (a), (b), blow molding portion 10 has 12, two the first cavity plate 11, the second cavity plate cartridge units
13a and 13b, blow needle unit 14 and installation base plate 15.
First cavity plate 11, the second cavity plate 12 have the first cavity and the second cavity, and the first cavity and the second cavity are mutually engaged
It closes and forms pipe fitting shape chamber A, what pipe fitting shape chamber was blow molded formation by a curved cylinder in the present embodiment is one closed
Curved cylinder capsule.Installation base plate 15 is fixedly installed at the fastening line that the first cavity plate 11, the second cavity plate 12 mutually fasten.
The cross section of pipe fitting shape chamber one first is provided in the middle section position of the first cavity plate 11, the second cavity plate 12 to cut
Slot and one second cutting seam, the first cutting seam and the second cutting are sewn on the fastening along the first cavity plate 11 and the second cavity plate 12
Direction is coplanar, forms a circle with the fastening of the first cavity plate 11 and the second cavity plate 12.
Two cartridge units 13a and 13b be respectively fixedly disposed on installation base plate and be located at after fastening the first cavity plate 11,
The both ends of second cavity plate 12, for the both ends pinch seal that can be blow molded the pipe fitting shape chamber A of blank will to be filled with.Cartridge unit 13a
The head of pipe fitting shape chamber A is set, blank can be blow molded and entered in pipe fitting shape chamber A from the head of pipe fitting shape chamber A.Cartridge unit
The tail portion of pipe fitting shape chamber A is arranged in 13b, which is connected by pipeline with negative pressure source, for vacuumizing to pipe fitting shape chamber A
Tail portion is flow to by the head of pipe fitting shape chamber A faster with the blank that is blow molded for accelerating sticky.
Blow needle unit 14 is arranged on cartridge unit 13b, is symmetrically arranged at left and right sides of cartridge unit including two
Blowing needle 141, blowing needle 141 penetrate under the control of control unit 6 with extraneous compressed air connection and enter pipe fitting shape chamber A
Being blow molded in blank for tail portion to be blow molded blank and obtain pipe fitting semi-finished product after expansion molding under the action of compressed gas.
Fig. 3 is the schematic diagram in blow mold in cutter insertion cutting seam but when not cutting
As shown in Fig. 2 (b) and Fig. 3, cutting part 20 includes the first cutter 21, the second cutter 22, entangles the first cutting
The broach shell 23 and actuator 24 of knife 21, the second cutter 22.Since the present embodiment is to need to obtain regular pipe fitting needs pair
Pipe fitting semi-finished product both ends are all cut, so cutting part is as shown in Fig. 2, be to complete to cut by two sets of cutting parts in the present embodiment
It cuts.
First cutter 21, the second cutter 22 are rectangle.As shown in Fig. 2, there is cutting in the lower part of cutter
Blade, there is the knife spine not put the first edge on a knife or a pair of scissors in the top of cutter and side.When not cutting, the first cutter 21, second are cut
A part of cutter 22 imports in the corresponding first cutting seam of insertion and the second cutting seam.
Broach shell 23 is the metal-back of cuboid, entangles the first cutter 21, the second cutter 22 (in installation base plate 15 in figure
Under be blocked), for protecting the first cutter 21, the second cutter 22.
Actuator 24 is pneumatic member, has cylinder 241 and push rod 242, and cylinder 241 is fixed on installation base plate 15.Push rod
242 pass through broach shell 23 connect with knife spine, and driving push rod moves downward and then drives first after being passed through high pressure gas in cylinder 241
Cutter 21, the second cutter 22 blade cut in opposite directions up and down.
Control unit 6 and the connection of heater 5 and auger conveyor 4 are fed to control；With the blow needle unit of blow mold 100
14 and actuator 24 connect, for controlling blow-moulding process and cutting after molding.
Fig. 4 is that the schematic diagram after being over is cut in cutter insertion cutting seaming and cutting in blow mold.
With reference to the accompanying drawing 3,4 illustrate the present embodiment blow mold blow molding and cutting process.
The feed portion 2 that blow molding components form device 1 is injected the blank that is blow molded heated by the head H in diagram
Into pipe fitting shape chamber A.Control unit 6 drives external negative pressure source to be evacuated by the tail portion of pipe fitting shape chamber A, can be blow molded blank i.e. in this way
Rapidly it is transferred to tail portion.Then the movement of blowing needle 141 of blow needle unit 14, which penetrates this, to be blow molded in blank, by being passed through height
Blank inflation is bonded by the compressed air of pressure with the inner wall of pipe fitting shape chamber A, obtains pipe fitting semi-finished product in this way.As shown in figure 3,
The blade for being now placed in the cutter of 15 upside of installation base plate has been inserted into cutting seam but is not yet cut.
Continue to be passed through high pressure compressed gas and make pipe fitting semi-finished product bulging as shown in figure 4, control unit 6 controls blowing needle 141,
The cylinder ventilation driving push rod controlled in actuator simultaneously acts to drive the first cutter, the second cutter upward and downward incision
It cuts, is pipe fitting in the middle section G of two cutting parts, the both ends being cut are discarded.Middle section G is taken out to obtain by cutting
Pipe fitting fabricated part.
Variation
The first cutter and the second cutter are rectangular in above-described embodiment, can also be opened up on the rectangle knife
Semicircular indentations, two cutter being oppositely arranged in this way, are harmonious, it is only necessary to which the push rod of actuator moves up and down lesser up and down
Distance can easily cut off pipe fitting semi-finished product.
The beneficial effect and effect of embodiment
According to the blow mold of mould internal cutting provided in this embodiment, due to having the cutting being arranged in blow molding portion
Portion, when being blow molded in blow molding portion blank is blow-molded obtain pipe fitting semi-finished product after, pass through the cutter in cutting part
Cutting seam in forming part cuts the pipe fitting semi-finished product in forming part and directly obtains pipe fitting in blow mold,
Two processes of molding and cutting are realized using a mold.Whole process is completed by a device, is saved manually, while one
The product that a mold generates ensure that the high-quality of finished product and the stability of product quality.
In addition, since the notch that cutter have and the shape of pipe fitting semi-finished product matches (corresponds to the present embodiment as circle
The cutter of pipe fitting and corresponding semicircular indentations) the opposite position of the first cavity plate and the second cavity plate outer wall is separately positioned on when two
The cutter for setting in cutting seam just synthesize a circle, in cutting when closing of cutting or horizontal direction are cut up and down in opposite directions
Stress is balanced in the process, therefore to the good cutting effect of tubular part, the incision of formation is neat, good product quality.
Through a step, since the cutting mechanism in cutting part is arranged in forming part and between air blowing portion and feeding inlet
Position at, in this way can by one end because blow needle penetrates and bring hole and the other end because feeding inlet and bring is not advised
Then mouth is cut away by cutter, and there will be no holes and irregular closing in pipe fitting remaining in this way.
Further, it since cutting structure also has the guide sleeve for entangling cutter, can not be cut usually in this way
When protect cutter.
Further, due to having the blow needle with extraneous high-pressure air source connection, which is passed through on the outer wall of forming part
Through-hole after penetrate can be blow molded in blank blow so that parison swell molding and stick on the wall of pipe fitting shape chamber, it is empty to be passed through compression
Gas makes the chamber pressure of pipe fitting semi-finished product at this time be greater than extraneous and become bulging, in the cutter cutting of cutting part
It flat will not contract, facilitate the cutting of cutter.
Claims (8)
1. a kind of method for being blow molded components blow molding and cutting, using can mould internal cutting blow mold, first to can
Blow molding blank blow molding is cut to obtain pipe fitting again, this can the blow mold of mould internal cutting include:
Blow molding portion, for it is described be blow molded blank carry out blow molding obtain pipe fitting semi-finished product, the blow molding portion packet
Include two and be mutually interlocked and formed the first cavity plates and the second cavity plate of pipe fitting shape chamber, first cavity plate and the second cavity plate it is predetermined
At least one first cutting seam and at least one second cutting seam are respectively arranged at position, the first cutting seam and second is cut
Slot is coplanar on the fastening direction of first cavity plate and the second cavity plate；
Cutting part has the first cutter and the second cutter to match respectively with the first cutting seam and the second cutting seam
And it respectively drives first cutter and the second cutter and stitches across the first cutting seam and the second cutting to the pipe
At least two actuators that part semi-finished product are cut,
Wherein, the blow molding portion further includes installation base plate, two cartridge units and blow needle unit,
It is fixedly installed the installation base plate at the fastening line of first cavity plate and second cavity plate,
Two cartridge units be respectively fixedly disposed on the installation base plate and first cavity plate that is located at after fastening and
The both ends of second cavity plate,
One cartridge unit is arranged in the tail portion of pipe fitting shape chamber A, which is connected by pipeline with negative pressure source, for pair
The pipe fitting shape chamber A is vacuumized, and flow to the tail portion faster by the head of pipe fitting shape chamber A so that blank can be blow molded,
The blow needle unit is arranged on the cartridge unit of the tail portion pipe fitting shape chamber A, including two symmetrical settings exist
Blowing needle at left and right sides of the cartridge unit, the blowing needle are pricked under the control of control unit with extraneous compressed air communication
The described of tail portion for entering to enter the pipe fitting shape chamber A is blow molded in blank, so that the blank that is blow molded is in the compression sky
Pipe fitting semi-finished product are obtained under the action of gas after expansion molding,
The head of the pipe fitting shape chamber A, first cutter and second cutting is arranged in another described cartridge unit
Knife is located between the cartridge unit and blow needle unit on the head of the pipe fitting shape chamber A,
The blow molding and cutting method include:
Step 1, the blank that is blow molded heated is injected into pipe fitting shape chamber A by feed portion by the head of the pipe fitting shape chamber A；
Step 2, the external negative pressure source of control unit driving is by the tail portion pumping of pipe fitting shape chamber A, and described to be blow molded blank i.e. rapid
Be transferred to tail portion；
Step 3, the air blowing needle movement of blow needle unit penetrates described be blow molded in blank；
Step 4, blank inflation is bonded by the compressed air for being passed through high pressure with the inner wall of pipe fitting shape chamber A, obtains pipe fitting semi-finished product；
Step 5, the blade of the cutter on the upside of installation base plate is inserted into cutting seam but is not yet cut；
Step 6, control unit, which controls the blowing needle and continues to be passed through high pressure compressed gas, makes the pipe fitting semi-finished product bulging；
Step 7, while the ventilation driving push rod movement of the cylinder in actuator is controlled to drive the first cutter, second cutter
Blade is cut in opposite directions up and down；
It step 8, is pipe fitting in the middle section G of two cutting parts, the both ends being cut are discarded；
Step 9, it takes out middle section G and obtains the fabricated part of the pipe fitting by cutting.
2. the method according to claim 1 for being blow molded components blow molding and cutting, it is characterised in that:
Wherein, the cutting seam is arranged along the circumferential of cross section of the pipe fitting.
3. the method according to claim 1 for being blow molded components blow molding and cutting, it is characterised in that:
Wherein, the knife edge part of first cutter and the second cutter insertion the first cutting seam and the second cutting seam
In,
Expose the first cutting seam and the second cutting seam and and institute in the knife spine part of first cutter and the second cutter
State actuator connection.
4. the method according to claim 3 for being blow molded components blow molding and cutting, it is characterised in that:
Wherein, the actuator is pneumatic member, and the pneumatic member has pneumatic cylinder and push rod, and the push rod is cut with described first
The knife spine of cutter and the second cutter connects, and push rod described in the drive of high-pressure gas in the pneumatic cylinder drives the described of connection cutting
Cutter is cut.
5. the method according to claim 1 for being blow molded components blow molding and cutting, it is characterised in that:
Wherein, it is provided with the notch to match with the shape of the pipe fitting semi-finished product on the cutter, is arranged on the notch
There is the blade for cutting.
6. the method according to claim 1 for being blow molded components blow molding and cutting, it is characterised in that:
Wherein, the cutting part also has the broach shell being fixed on the outer wall of first cavity plate and the second cavity plate, the knife
Set is for entangling first cutter and the second cutter.
7. a kind of blow molding components form device, blown using described in any one of claim 1-6 for being blow molded components
The blow molding of blow molding blank is obtained pipe fitting by the method for being moulded into type and cutting characterized by comprising
Feed portion is blow molded blank for supply certain temperature；
Blow mold, for carrying out blow molding and cutting the blank that is blow molded to obtain the pipe fitting；
Control unit, for controlling the work in the feed portion and the blow mold.
8. blow molding components according to claim 7 form device, it is characterised in that:
Wherein, the feed portion includes storage hopper, auger conveyor and heater,
The heater is arranged on the auger conveyor, and the auger conveyor is by the blow molding base in the storage hopper
It can be blow molded blank described in being obtained after material heating and be transported in the blow mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610463447.1A CN105965857B (en) | 2016-06-23 | 2016-06-23 | Can mould internal cutting blow mold and blow molding components formed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610463447.1A CN105965857B (en) | 2016-06-23 | 2016-06-23 | Can mould internal cutting blow mold and blow molding components formed device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105965857A CN105965857A (en) | 2016-09-28 |
| CN105965857B true CN105965857B (en) | 2019-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610463447.1A Active CN105965857B (en) | 2016-06-23 | 2016-06-23 | Can mould internal cutting blow mold and blow molding components formed device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109624271B (en) * | 2018-12-28 | 2021-01-29 | 利宾来塑胶工业（昆山）有限公司 | Technology for machining two ends of pipe fitting blow molding product through in-mold cutting |
| CN110000847B (en) * | 2019-04-19 | 2020-12-15 | 烟台乐星汽车部件有限公司 | Machining method for intercooler air inlet pipe |
| CN110465990B (en) * | 2019-08-14 | 2021-07-02 | 宁波方正汽车模具股份有限公司 | Waste ejection mechanism for automobile ventilation pipe |
| JP2022092194A (en) * | 2020-12-10 | 2022-06-22 | 扶桑産業株式会社 | Molding device |
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| CN202399509U (en) * | 2012-01-04 | 2012-08-29 | 亚普汽车部件股份有限公司 | Trimming device for plastic oil-filling pipe |
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| CN205705254U (en) * | 2016-06-23 | 2016-11-23 | 上海群力橡塑制品有限公司 | Can mould internal cutting blow mold and blowing parts formed device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202399509U (en) * | 2012-01-04 | 2012-08-29 | 亚普汽车部件股份有限公司 | Trimming device for plastic oil-filling pipe |
| CN105313155A (en) * | 2014-05-29 | 2016-02-10 | 上海群力橡塑制品有限公司 | Flexible pipe orifice cutting device |
| CN205009574U (en) * | 2015-09-25 | 2016-02-03 | 江苏奥力威传感高科股份有限公司 | A die set for producing 3D blowing pipe |
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| CN105965857A (en) | 2016-09-28 |
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