CN207607106U - A kind of double-wall pipe extension fixture - Google Patents

Abstract

The utility model discloses a kind of double-wall pipe extension fixtures, including a feed mechanism, it is set to a heating haulage gear, a wiper mechanism and the receiving mechanism for being set to wiper mechanism tail end of feed mechanism side, further include the expanding mechanism being set between heating haulage gear and wiper mechanism and the ventilating mechanism for being connected to double-wall pipe, wherein, which includes a dilatation mold, several vacuum-pumping tubes for being connected to dilatation mold, the cooling water for being connected to dilatation mold one end enter pipe and be connected to a cooling water outlet tube of the dilatation mold other end.Double-wall pipe extension fixture provided by the utility model, pass through the dilatation mold structure designed with special construction, double-wall pipe is set to expand into the size of needs, simultaneously, ensure the stability of the double-wall pipe after expansion, double-wall pipe overall performance is improved, fixation, sealing, waterproof, moisture-proof effect are played to the wire rod being inserted into double-wall pipe.

Description

A kind of double-wall pipe extension fixture

Technical field

The utility model is related to a kind of double-wall pipe preparation facilities more particularly to a kind of double-wall pipe extension fixtures.

Background technology

Double-wall pipe is widely used in the wiring waterproof of electronic equipment, anti-gas-leak；The anti-corrosion protection of electric wire bifurcation, electric wire electricity The occasions such as the wiring waterproof of the repairing of cable, water pump and immersible pump.The quality of double-wall pipe directly affects its waterproof, anti-gas-leak Etc. performances.

In the prior art, the same same technique of equipment can only prepare a kind of double-wall pipe of size, when need It when wanting various sizes of double-wall pipe, needs to reset technological parameter, and needs to carry out details change to equipment, it is difficult to realization pair The quick mass production of double-wall pipe.

Therefore, it is necessary to develop a kind of novel double-wall pipe extension fixture to be needed to expand double-wall pipe size Want the double-wall pipe of size.

Utility model content

Against the above deficiency, the purpose of this utility model is to provide a kind of double-wall pipe extension fixtures, by with special The dilatation mold structure of structure design makes double-wall pipe expand into the size of needs, meanwhile, ensure the double-wall pipe after expansion Stability improves double-wall pipe overall performance, and fixation, sealing, waterproof, moisture-proof work are played to the wire rod being inserted into double-wall pipe With.

Used technical solution is the utility model in order to achieve the above objectives：

A kind of double-wall pipe extension fixture, including a feed mechanism, be set to feed mechanism side one heating haulage gear, One wiper mechanism and the receiving mechanism for being set to wiper mechanism tail end, which is characterized in that further include being set to heating dragger An expanding mechanism between structure and wiper mechanism and the ventilating mechanism for being connected to double-wall pipe, wherein the expanding mechanism includes one Dilatation mold, several vacuum-pumping tubes for being connected to dilatation mold, be connected to dilatation mold one end a cooling water enter pipe and even It is connected to a cooling water outlet tube of the dilatation mold other end.

The dilatation mold includes a mold shell and is inserted in outside mold as a further improvement of the utility model, A mold core in shell, wherein offered on the mold core central axis direction through mold core head and the tail both ends and for double The perforation that wall pipe passes through, and the mold core includes being plugged in one first integrated inner core section, several second inner core sections successively With a third inner core section；The pass through aperture being inserted into for mold core is offered on the mold shell central axis direction, in the mold Outer side face both ends offer several vacuum orifices for being connected to through hole respectively, and are offered in the mold shell lateral surface It is respectively communicated to the cooling water inlet and a cooling water outlet of through hole, which enters pipe and be plugged in cooling water inlet On, which is plugged on cooling water outlet.

The first inner core section includes one first inner core section ontology and one as a further improvement of the utility model, It is connected to one first insertion end of the first inner core section ontology front end, wherein in the first inner core section and be located at perforated peripheral It offers one first and vacuumizes cavity, this first vacuumizes cavity and be through to the first insertion end；On the first inner core section ontology Be recessed with the annular groove being connected with vacuum orifice, which is divided into two seal sections by the first inner core section ontology, this two It is respectively arranged with a sealing ring between a seal section periphery and mold shell inner wall, and offers on the annular groove and is taken out very with first What cavity body was connected several vacuumizes hole；If being offered in the first insertion end end and vacuumizing what cavity was connected with first Dry first connecting hole, and first vacuumize and offered on cavity inner wall and several first through hole being connected of perforating at this；This is close Envelope section outer wall is mutually tightly connected with mold shell inner wall, makes to form a cooling between the mold shell inner wall and mold core outer wall Water water route.

The second inner core section includes one second inner core section ontology and one as a further improvement of the utility model, It is connected to one second insertion end of the second inner core section ontology front end, wherein be convexly equipped with spiral on the second inner core section ontology Shape fin then forms helical form chute on the second inner core section ontology；It is opened in the second inner core section and positioned at perforated peripheral Vacuumize cavity equipped with one second, this second vacuumize cavity run through the second inner core section ontology and the second insertion end, this second Insertion end end offer with second vacuumize that cavity is connected several second before connecting hole；After the second inner core section ontology End offers one second slot being inserted into for the first insertion end, and bottom, which offers, in second slot is respectively communicated to first Connecting hole and second vacuumize cavity several second after connecting hole, form one between the first insertion end end and the second slot First vacuum gap, and second vacuumize and offered on cavity inner wall and several second through-holes for being connected of perforation at this.

The third inner core section includes third inner core section ontology and integrally connects as a further improvement of the utility model, It is connected to a third insertion end of third inner core section ontology front end, wherein opened in the third inner core section and positioned at perforated peripheral Cavity is vacuumized equipped with a third, which vacuumizes cavity through third inner core section ontology and third insertion end；In the third Insertion end end is offered vacuumize several thirds that cavity is connected with third before connecting hole, after the third inner core section ontology End offers the third slot being inserted into for the second insertion end, and bottom, which offers, in the third slot is respectively communicated to second Preceding connecting hole and third vacuumize connecting hole after several thirds of cavity, are formed between the second insertion end end and third slot One second vacuum gap, and several third through-holes for offering on cavity inner wall and being connected with perforation are vacuumized in the third.

The heating haulage gear including a soaking compartment and is set to immersion as a further improvement of the utility model, Several carry-over pinch rolls in slot, wherein being added in the soaking compartment has heat-conducting liquid.

The wiper mechanism includes a cleaning solution storage cylinder, a rinse bath, frame as a further improvement of the utility model, It traction rollers on rinse bath and is connected to cleaning solution storage cylinder and extends to the coiled pipe on traction rollers side Nozzle.

Further include the fixed mechanism being set on dilatation mold as a further improvement of the utility model, this is fixed Mechanism include be set to a firm banking below dilatation mold, the fixed plate that is set to above dilatation mold, be connected to it is solid Determine on pedestal and the fixed link for being located at dilatation mold two sides and the limit assembly for being set to fixed link upper end, In, which passes through fixed plate one end, which includes being sheathed on a sleeve of fixed link upper end and being set to Swing rod on sleeve；The fixed link periphery is provided with external screw thread, is provided on the sleeve lining in matching with external screw thread Screw thread；Offer the side bayonet slot being caught in for fixed link respectively at the fixed plate both ends, and the side bayonet slot is U-shaped.

The beneficial effects of the utility model are：By the dilatation mold structure designed with special construction, in mold core Interior formation vacuumizes cavity, realizes that side is ventilated into double-wall pipe, side uses and vacuumizes the side that mode takes out double-walled pipe outer wall air Formula eliminates outside air to the pressure of double-wall pipe, double-wall pipe is made to expand into the size of needs；Meanwhile in mold shell Chilled(cooling) water return (CWR) is formed between wall and mold core outer wall, cooling and shaping is carried out to the double-wall pipe after expansion, after ensureing expansion The stability of double-wall pipe, to improve double-wall pipe overall performance, make double-wall pipe to be inserted into its internal wire rod play it is fixed, Sealing, waterproof, moisture-proof effect.

Above-mentioned is the general introduction of utility model technical solution, below in conjunction with attached drawing and specific implementation mode, to the utility model It is described further.

Description of the drawings

Fig. 1 is the overall structure diagram of the utility model double-wall pipe extension fixture；

Fig. 2 is that the utility model dilatation mold enters the knot that pipe is connected with cooling water outlet tube with vacuum-pumping tube, cooling water Structure schematic diagram；

Fig. 3 is the structural schematic diagram of the utility model dilatation mold；

Fig. 4 is the installation diagram of the utility model dilatation mold；

Fig. 5 is the structural schematic diagram of the utility model mold core；

Fig. 6 is the structural schematic diagram of the utility model the first inner core section；

Fig. 7 is a structural schematic diagram of the utility model the second inner core section；

Fig. 8 is another structural schematic diagram of the utility model the second inner core section；

Fig. 9 is the structural schematic diagram of the utility model the second inner core section rear end face；

Figure 10 is the structural schematic diagram of the utility model third inner core section；

Figure 11 is the structural schematic diagram of the utility model wiper mechanism.

Specific implementation mode

Further to illustrate that the utility model is to reach the technological means and effect that predetermined purpose is taken, below in conjunction with Specific embodiment of the present utility model is described in detail in attached drawing and preferred embodiment.

Please refer to Fig. 1 to Figure 11, the utility model provides a kind of double-wall pipe extension fixture, including a feed mechanism 1, sets It is placed in a heating haulage gear 2, a wiper mechanism 3 and the rewinding for being set to 3 tail end of wiper mechanism of 1 side of feed mechanism Mechanism 4.The present embodiment double-wall pipe extension fixture further includes the expansion being set between heating haulage gear 2 and wiper mechanism 3 Mechanism and the ventilating mechanism for being connected to double-wall pipe, wherein the expanding mechanism includes a dilatation mold 5, is connected to dilatation mold 5 several vacuum-pumping tubes 6, the cooling water for being connected to 5 one end of dilatation mold enter pipe 7 and are connected to 5 other end of dilatation mold A cooling water outlet tube 8.

Such as Fig. 3 to Fig. 5, the dilatation mold 5 includes a mold shell 51 and the mold being inserted in mold shell 51 Inner core 52, wherein offered on 52 central axis direction of mold core through 52 head and the tail both ends of mold core and worn for double-wall pipe The perforation 521 crossed, and the mold core 52 includes being plugged in one first integrated inner core section 522, several second inner cores successively Section 523 and a third inner core section 524, can set the quantity of the second inner core section 523, according to specific needs in this implementation In example, it is preferred that the quantity of the second inner core section 523 is three, is plugged in one successively；On 51 central axis direction of mold shell The pass through aperture 511 being inserted into for mold core 52 is offered, offers and is connected to respectively at the 51 lateral surface both ends of mold shell Several vacuum orifices 512 of through hole 511, and offered in 51 lateral surface of mold shell and be respectively communicated to through hole 511 One cooling water inlet 513 and a cooling water outlet 514, the cooling water enter pipe 7 and are plugged on cooling water inlet 513, the cooling Water outlet pipe 8 is plugged on cooling water outlet 514.

As shown in fig. 6, the first inner core section 522 includes one first inner core section ontology 5221 and is integrally connected to first One first insertion end 5222 of 5221 front end of inner core section ontology, wherein in the first inner core section 522 and positioned at perforation 521 Periphery offers one first and vacuumizes cavity, this first vacuumizes cavity and be through to the first insertion end 5222；In first inner core Duan Benti 5221 is concavely provided with the annular groove 52211 being connected with vacuum orifice 512, and the annular groove 52211 is by the first inner core section sheet Body 5221 is divided into two seal sections 52212, is set respectively between two seal sections, 52212 periphery and 51 inner wall of mold shell Be equipped with a sealing ring 52213, and offer on the annular groove 52211 with first vacuumize that cavity is connected several vacuumize hole 52214；It is offered in 5222 end of the first insertion end and vacuumizes several first connecting holes that cavity is connected with first 52221, and first the 521 several first through hole that are connected that offer and perforate on cavity inner wall are vacuumized at this；The seal section 52212 outer walls are mutually tightly connected with 51 inner wall of mold shell, make shape between 52 outer wall of 51 inner wall of mold shell and mold core At a cooling water water route.

As shown in Figure 7 to 9, the second inner core section 523 includes one second inner core section ontology 5231 and is integrally connected to One second insertion end 5232 of 5231 front end of the second inner core section ontology, wherein the projection on the second inner core section ontology 5231 There is helical rib 52311, then forms helical form chute 52312 on the second inner core section ontology 5231；In second inner core It offers one second in section 523 and positioned at 521 peripheries of perforation and vacuumizes cavity, this second vacuumizes cavity and run through the second inner core section Ontology 5231 and the second insertion end 5232 offer in 5232 end of the second insertion end and vacuumize what cavity was connected with second Connecting hole 52321 before several second；It offers in 5231 rear end of the second inner core section ontology and is inserted into for the first insertion end 5222 One second slot 52313, bottom, which offers, in second slot 52313 is respectively communicated to the first connecting hole 52221 and Two vacuumize cavity several second after connecting hole 52314, shape between 5222 end of the first insertion end and the second slot 52313 At one first vacuum gap, and this second vacuumize offer on cavity inner wall and be connected with perforation 521 it is several second logical Hole.

In the present embodiment, it after multiple second inner core sections 523 are plugged in one, is formed between outer wall and mold shell 51 cold But water water route, and the helical form chute 52312 formed in the second inner core section 523, cooling water flow through helical form chute 52312, Keep the time that cooling water rests in the second inner core section 523 elongated, plays the role of better cooling and shaping.

As shown in Figure 10, the third inner core section 524 includes third inner core section ontology 5241 and is integrally connected in third One third insertion end 5242 of 5241 front end of core section ontology, wherein in the third inner core section 524 and outside perforation 521 It encloses and offers a third and vacuumize cavity, which vacuumizes cavity through third inner core section ontology 5241 and third insertion end 5242；The connecting hole before 5242 end of third insertion end offers and vacuumizes several thirds that cavity is connected with third 52421, offer the third slot being inserted into for the second insertion end 5232 in 5241 rear end of third inner core section ontology 52411, bottom offers in the third slot 52411 be respectively communicated to second before connecting hole 52321 and third vacuumize chamber It is true to form one second for connecting hole 52412 after several thirds of body between 5232 end of the second insertion end and third slot 52411 Empty gap, and several third through-holes for offering on cavity inner wall and being connected with perforation 521 are vacuumized in the third.

As shown in Figure 1, the heating haulage gear 2 includes a soaking compartment and several carry-over pinch rolls being set in soaking compartment 21, wherein being added in the soaking compartment has heat-conducting liquid.

As shown in figure 11, the wiper mechanism 3 includes a cleaning solution storage cylinder 31, a rinse bath 32, is set up in rinse bath It traction rollers 33 on 32 and is connected to cleaning solution storage cylinder 31 and extends to the spray of the coiled pipe on 33 side of traction rollers First 34.

As shown in Fig. 2, further including the fixed mechanism 9 being set on dilatation mold 5, which includes being set to One firm banking 91 of 5 lower section of dilatation mold, is connected to firm banking 91 at the fixed plate 92 for being set to 5 top of dilatation mold The upper and fixed link 93 for being located at 5 two sides of dilatation mold and the limit assembly 94 for being set to 93 upper end of fixed link, In, it includes the sleeve for being sheathed on 93 upper end of fixed link which, which passes through 92 one end of fixed plate, the limit assembly 94, 941 and the swing rod 942 that is set on sleeve 941；93 periphery of fixed link is provided with external screw thread, is set on 941 inner wall of sleeve It is equipped with the internal thread to match with external screw thread；Offer the side card being caught in for fixed link 93 respectively at 92 both ends of the fixed plate Slot 921, and the side bayonet slot 921 is U-shaped.

Double-wall pipe extension fixture provided in this embodiment, by the dilatation mold structure designed with special construction, in mould In-core formation vacuumizes cavity in tool, realizes that side is ventilated into double-wall pipe, and it is empty that side uses the mode that vacuumizes to take out double-walled pipe outer wall The mode of gas eliminates outside air to the pressure of double-wall pipe, double-wall pipe is made to expand into the size of needs；Meanwhile in mold Chilled(cooling) water return (CWR) is formed between outer casing inner wall and mold core outer wall, cooling and shaping is carried out to the double-wall pipe after expansion, ensures to expand The stability of double-wall pipe after makes double-wall pipe be risen to being inserted into its internal wire rod to improve double-wall pipe overall performance To fixation, sealing, waterproof, moisture-proof effect.

Using above-mentioned double-wall pipe extension fixture, the preparation of double-wall pipe can be carried out, the specific steps are：

(1) it squeezes out

(1.1) hot melt adhesive material is added in a screw extruder, is tentatively heated to 65-80 DEG C first, and squeezed by screw rod Go out the electric motor driven screw high speed rotation that frequency in machine is 15-25Hz, and continuous forward impelling, while being constantly heated to 100- 120 DEG C, hot melt adhesive material is stirred continuously by screw rod, until becoming molten condition, then with 60-80 DEG C of temperature, finally Extrusion molding；

(1.2) PE pyrocondensation materials in the tube are added in another screw extruder, are tentatively heated to 100-110 DEG C first, and by spiral shell Frequency is the electric motor driven screw high speed rotation of 15-25Hz in bar extruder, and continuous forward impelling, while being constantly heated to 120-125 DEG C, PE pyrocondensation materials in the tube are stirred continuously by screw rod, until becoming molten condition, then extrusion molding is in molding hot melt Glue periphery, forms double-wall pipe semi-finished product；

(1.3) double-wall pipe semi-finished product are flowed through in 2-10m long and sink containing water, is cooled and shaped, form double-wall pipe；

(2) it expands

(2.1) double-wall pipe is flowed through with the speed of 3-10m/min in the heat-conducting liquid that temperature is 100-115 DEG C, conductive fluid Body conducts heat to double-wall pipe, softens double-wall pipe；

(2.2) double-wall pipe is drawn to expanding mechanism, the double-walled pipe outer wall into expanding mechanism is with 0.07- on one side The vacuum degree of 0.09KPa vacuumizes, and is passed through the gas that air pressure is 0.006-0.007MPa into double-wall pipe on one side, double-wall pipe is made to expand Zhang Bian great；Simultaneously, lead to cooling water toward double-walled pipe outer wall and carry out cooling and shaping；

(2.3) double-wall pipe after cooling and shaping is passed in wiper mechanism and is cleaned.

In the step (2.1), the heat-conducting liquid is conduction oil.

The present embodiment uses special expansion technique, by while ventilating in double-wall pipe, constantly using and vacuumizing Mode take out double-wall pipe peripheral air, so that double-wall pipe is expanded to the size of needs, while logical cooling water cooling and shaping, protect The stability of double-wall pipe performance after card expansion, entire parameters of technique process is easy to control, can prepare numerous different sizes Double-wall pipe realizes the mass production of double-wall pipe.

The double-wall pipe that the present embodiment is prepared is widely used in wiring waterproof, the anti-gas-leak of electronic equipment；Electric wire bifurcation Anti-corrosion protection, the repairing of electric wire, the occasions such as wiring waterproof of water pump and immersible pump.Double-walled outer tube layer is PE heat-shrink tubes Material, internal layer are hot melt adhesive, and outer layer has many advantages, such as insulating corrosion, wear-resisting, and internal layer has low melting point, waterproof, sealing and high is bonded The advantages that property.After wire rod etc. is penetrated double-wall pipe, the contraction of internal layer hot melt adhesive can be made to be coated on wire rod by the way of heating On outer wall, not only play the role of fixed electric wire, and have the function of sealing, it is waterproof and dampproof.

The above descriptions are merely preferred embodiments of the present invention, not makees to the technical scope of the utility model Any restrictions, therefore identical as the utility model above-described embodiment or approximate technical characteristic is used, and obtained other structures, It is within the protection scope of the utility model.

Claims (8)

1. a kind of double-wall pipe extension fixture, including a feed mechanism, be set to feed mechanism side a heating haulage gear, one Wiper mechanism and the receiving mechanism for being set to wiper mechanism tail end, which is characterized in that further include being set to heating haulage gear An expanding mechanism between wiper mechanism and the ventilating mechanism for being connected to double-wall pipe, wherein the expanding mechanism includes one expanding Mold, several vacuum-pumping tubes for being connected to dilatation mold, the cooling water for being connected to dilatation mold one end enter pipe and connection To a cooling water outlet tube of the dilatation mold other end.

2. double-wall pipe extension fixture according to claim 1, which is characterized in that the dilatation mold includes outside a mold Shell and the mold core being inserted in mold shell, wherein offered in mold on the mold core central axis direction Core head and the tail both ends and the perforation passed through for double-wall pipe, and the mold core includes being plugged in one first integrated inner core successively Section, several second inner core Duan Yuyi third inner core sections；It offers on the mold shell central axis direction and to be inserted into for mold core Pass through aperture offers several vacuum orifices for being connected to through hole at the mold shell lateral surface both ends respectively, and in the mould Tool outer side face offers the cooling water inlet and a cooling water outlet for being respectively communicated to through hole, which enters pipe It is plugged on cooling water inlet, which is plugged on cooling water outlet.

3. double-wall pipe extension fixture according to claim 2, which is characterized in that the first inner core section includes in one first Core section ontology and one first insertion end for being integrally connected to the first inner core section ontology front end, wherein in the first inner core section And offer one first positioned at perforated peripheral and vacuumize cavity, this first vacuumizes cavity and is through to the first insertion end；This One inner core section ontology is concavely provided with the annular groove being connected with vacuum orifice, which is divided into two by the first inner core section ontology Seal section is respectively arranged with a sealing ring between two seal section peripheries and mold shell inner wall, and is opened on the annular groove Equipped with first vacuumize that cavity is connected several vacuumize hole；It offers in the first insertion end end and is vacuumized with first Several first connecting holes that cavity is connected, and this first vacuumize offered on cavity inner wall with perforation be connected it is several First through hole；The seal section outer wall is mutually tightly connected with mold shell inner wall, makes the mold shell inner wall and mold core outer wall Between form a cooling water water route.

4. double-wall pipe extension fixture according to claim 3, which is characterized in that the second inner core section includes in one second Core section ontology and one second insertion end for being integrally connected to the second inner core section ontology front end, wherein in the second inner core section sheet It is convexly equipped with helical rib on body, then forms helical form chute on the second inner core section ontology；In the second inner core section and One second is offered positioned at perforated peripheral and vacuumizes cavity, and second to vacuumize cavity slotting through the second inner core section ontology and second for this Enter end, the second insertion end end offer with second vacuumize that cavity is connected several second before connecting hole；This Two inner core section ontology rear ends offer one second slot being inserted into for the first insertion end, and bottom offers in second slot Be respectively communicated to the first connecting hole and second vacuumize cavity several second after connecting hole, the first insertion end end and second Between slot formed one first vacuum gap, and this second vacuumize offered on cavity inner wall with perforate be connected it is several Second through-hole.

5. double-wall pipe extension fixture according to claim 4, which is characterized in that the third inner core section includes third inner core Duan Benti and the third insertion end for being integrally connected to third inner core section ontology front end, wherein in the third inner core section and A third is offered positioned at perforated peripheral and vacuumizes cavity, which vacuumizes cavity and inserted through third inner core section ontology and third Enter end；The connecting hole before the third insertion end end offers and vacuumizes several thirds that cavity is connected with third, this Three inner core section ontology rear ends offer the third slot being inserted into for the second insertion end, and bottom offers in the third slot It is respectively communicated to connecting hole and third before second and vacuumizes connecting hole after several thirds of cavity, the second insertion end end and the One second vacuum gap is formed between three slots, and if vacuumizing to offer on cavity inner wall in the third and being connected with perforating Dry third through-hole.

6. double-wall pipe extension fixture according to claim 1, which is characterized in that the heating haulage gear includes an immersion Slot and several carry-over pinch rolls being set in soaking compartment, wherein being added in the soaking compartment has heat-conducting liquid.

7. double-wall pipe extension fixture according to claim 1, which is characterized in that the wiper mechanism is stored up including a cleaning solution It deposits cylinder, a rinse bath, the traction rollers being set up on rinse bath and is connected to cleaning solution storage cylinder and extends to traction rollers A coiled pipe nozzle on side.

8. double-wall pipe extension fixture according to claim 1, which is characterized in that further include one be set on dilatation mold Fixed mechanism, the fixed mechanism include one for being set to a firm banking below dilatation mold, being set to above dilatation mold Fixed plate, the fixed link for being connected on firm banking and being located at dilatation mold two sides and it is set to fixed link upper end A limit assembly, wherein the fixed link upper end pass through fixed plate one end, which includes being sheathed on fixed link upper end One sleeve and the swing rod being set on sleeve；The fixed link periphery is provided with external screw thread, be provided on the sleeve lining with outside The internal thread that screw thread matches；Offer the side bayonet slot being caught in for fixed link, and the side card respectively at the fixed plate both ends Slot is U-shaped.