CN208841674U

CN208841674U - Teflon ring automatic molding machine

Info

Publication number: CN208841674U
Application number: CN201820957014.6U
Authority: CN
Inventors: 储绍清
Original assignee: Nantong Haylett Rubber And Plastic Machinery Co Ltd
Current assignee: Nantong Haylett Rubber And Plastic Machinery Co Ltd
Priority date: 2018-06-21
Filing date: 2018-06-21
Publication date: 2019-05-10
Anticipated expiration: 2028-06-21

Abstract

The utility model discloses ptfe ring automatic mould press, including the mould bases being fixed on column, and the molding cylinder set on the vertical center of mould bases, wherein: molding cylinder, top is flexible up and down by the upper mold that upper oil cylinder drives bottom to have molding bulge loop, and internal bottom position has the lower die of crossette flexible up and down by the driving of lower oil cylinder；The crossette setting of the molding bulge loop face lower die of upper mold, and the top of the crossette of lower die and molding cylinder inside, molding bulge loop bottom are encircled into sealing ring cavity；The intracavitary feed pipe by connecting injection molding machine metering device of sealing ring obtains polytetrafluoroethylene (PTFE) feed ethylene；The vertical direction of the crossette of lower die runs through at least one discharging mandril, and discharging mandril passes through its up and down motion of discharging power source drive；Upper oil cylinder, lower oil cylinder and discharging power source are all connected with PLC control device.The slave feeding of polytetrafluoroethylsealed sealed ring is completed to die forming, the full-automatic processing of product discharging, has high in machining efficiency, formed product is high-quality, and operating cost is low.

Description

Ptfe ring automatic mould press

Technical field

The present invention relates to technical fields, more particularly to ptfe ring automatic mould press.

Background technique

High molecular polymer, especially polytetrafluoroethylene (PTFE) (PTFE) and ultra-high molecular weight polyethylene (UHMWPE), due to it The features such as melt viscosity is high, coefficient of friction is small, critical shear rate is low brings very big difficulty to being kneaded, being molded, and use is existing Injection molding machine is difficult injection molding, it more difficult to form super-huge workpiece.

Chinese patent, Application Number (patent): CN2015205498899 discloses a kind of composite material, high molecular polymer Shaping equipment, kneading machine (twin screw or single screw extruder), the injection barrel with piston including having batch hopper And moulding press.The outlet of kneading machine is connected by check (non-return) valve with the front outlet for injecting barrel, and molding material can will be needed Injection injection barrel, it can be ensured that the material of each product is completely new；Inject the mold that barrel passes through check (non-return) valve and moulding press It is connected, the material in filling barrel is injected by mold by piston.

The equipment will be kneaded plastic alloy, and injection molding, molding are unified in one, overcome macromolecule polymer material, compound The problem of material, especially polytetrafluoroethylene (PTFE) (PTFE) and the difficult injection molding of ultra-high molecular weight polyethylene (UHMWPE)；Simultaneously by only The volume for changing injection cylinder can reach molding large-mass workpiece, overcome general injection molding machine molding large-mass workpiece equipment and make The high problem of valence reduces mold clamping force further through being molded after low-pressure injection molding, can not only reduce equipment cost, in turn ensure product Quality because machine cost is cheaper compared with other injection molding machines, only 1/5th or so, using molding directly at Type has maximally utilised the energy of briquetting pressure, reduces energy consumption, and is easy the biggish product of molding and multimode cavity system Product.The orientation of molding materials is small, does not crack, indeformable, easily guarantee quality, is especially easy molding macromolecule polymer material And the composite materials such as various plastic alloys.

But the polytetrafluoroethylproducts products of sheet can only be formed using the molding equipment, circular product cannot be made.

Summary of the invention

In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides it is a kind of can under the control of PLC control device It is automatic to realize conveying feeding, die forming and the automatic mould press for unloading polytetrafluoroethylsealed sealed ring automatically.

The technical scheme adopted by the invention is that: ptfe ring automatic mould press, including the mould bases being fixed on column, and Molding cylinder set on the vertical center of mould bases, in which:

It is molded cylinder, the bottom position that top drives bottom to have the upper mold of molding bulge loop flexible up and down, internal by upper oil cylinder Set has the lower die of crossette flexible up and down by the driving of lower oil cylinder；

The crossette setting of the molding bulge loop face lower die of upper mold, and the top of the crossette of lower die and molding cylinder inside, mould Belling ring bottom is encircled into sealing ring cavity；

The intracavitary feed pipe by connecting injection molding machine metering device of sealing ring obtains polytetrafluoroethylene (PTFE) feed ethylene；

The vertical direction of the crossette of lower die run through at least one discharging mandril, discharging mandril by discharging power source drive its It moves up and down；

Upper oil cylinder, lower oil cylinder and discharging power source are all connected with PLC control device.

Further, the side for being molded bulge loop is additionally provided with the company for being greater than the molding collar of the molding bulge loop for connection diameter Hole is connected, is molded in bulge loop and the connection through-hole of molding collar and passes through plug-in and pull-off device.

Further, molding bulge loop is equipped at least three connection through-holes, each connection through-hole connects a plug-in and pull-off device.

Further, the crossette of lower die is equipped with groove close to center position, is equipped in the outer respective slot of lower die for adjusting The lower die bushing of mould preparation pressure sealing ring size obtained.

Further, feed pipe passes through the molding bulge loop of molding cylinder or upper mold or the crossette of lower die is conveyed to sealing ring cavity Polytetrafluoroethylene (PTFE) feed ethylene.

Compared with prior art, the beneficial effects of the present invention are: ptfe ring automatic mould press of the invention, on the top of lower die Crossette is arranged in portion, so that the top of the crossette of lower die and molding cylinder inside, molding bulge loop bottom are encircled into sealing ring cavity, is sealing It need to only be acted on simultaneously to the intracavitary casting polytetrafluoroethylene (PTFE) feed ethylene of sealing ring, upper die and lower die before loop forming or when shaping, Die forming sealing ring, overall structure is simple, and the molding bulge loop of upper mold and the crossette size of lower die can design smaller, energy Enough meet the manufacture of sealing ring, integral die machine is light-weight compared with the existing technology, and structure is easy to accomplish.

In addition, the vertical direction positioned at the crossette of lower die runs through at least one discharging top after sealing ring die forming Bar realizes automatic discharging under the driving of discharging power source, completes the slave feeding of polytetrafluoroethylsealed sealed ring to die forming, product discharging Full-automatic processing, there is high in machining efficiency, the features such as formed product is high-quality, and operating cost is low.

It synthetically says, ptfe ring automatic mould press of the invention, overall structure is simple, compared with the existing technology integral die Machine is light-weight, and structure is easy to accomplish；And can complete the slave feeding of polytetrafluoroethylsealed sealed ring to die forming, product discharging it is complete from Dynamic processing, has high in machining efficiency, and formed product is high-quality, and operating cost is low.

Detailed description of the invention

Fig. 1 is the structure chart of one embodiment of ptfe ring automatic mould press；

Fig. 2 is the structure chart of one embodiment of upper mold；

Fig. 3 is the structure chart of one embodiment of lower die；

Wherein: 1- column, 2- mould bases, 3- molding cylinder, 4- upper oil cylinder, 5- upper mold, 51- molding bulge loop, 511- connection through-hole, 52- plug-in and pull-off device, 53- molding collar；Oil cylinder under 6-, 7- lower die, 71- crossette, 711- groove, 72- lower die bushing；8- sealing ring Chamber, 9- feed pipe, 10- discharging mandril, 11- discharging power source, 12-PLC control device.

Specific embodiment

In order to deepen the understanding of the present invention, present invention will be further explained below with reference to the attached drawings and examples, the implementation Example for explaining only the invention, does not constitute protection scope of the present invention and limits.

As shown in Figure 1, ptfe ring automatic mould press, including the mould bases 2 being fixed on column 1, and is set to mould bases 2 vertically The molding cylinder 3 of center, in which: molding cylinder 3, top drive bottom to have in the upper mold 5 of molding bulge loop 51 by upper oil cylinder 4 Lower flexible, internal bottom position has about 7 lower die of crossette 71 flexible by the driving of lower oil cylinder 6；The molding bulge loop of upper mold 5 The crossette 71 of 51 face lower dies 7 is arranged, and 3 inside of the top of the crossette 71 of lower die 7 and molding cylinder, molding 51 bottom of bulge loop are closed Surround sealing ring cavity 8；It seals in ring cavity 8 and polytetrafluoroethylene (PTFE) feed ethylene is obtained by the feed pipe 9 of connection injection molding machine metering device, The accurate control to the polytetrafluoroethylene (PTFE) feed ethylene entered in sealing ring cavity 8 may be implemented；The vertical direction of the crossette 71 of lower die 7 Through at least one discharging mandril 10, discharging mandril 10 drives it to move up and down and realizes and will shape by discharging power source 11 Polytetrafluoroethylsealed sealed ring releases sealing ring cavity automatically and carries out discharging；Realize these controls, it is necessary to by upper oil cylinder 4, lower oil cylinder 6 and discharging Power source 11 is all connected with PLC control device 12.

Specifically, the course of work of ptfe ring automatic mould press of the invention is:

Crossette is set at the top of lower die, so that the top of the crossette of lower die and molding cylinder inside, molding bulge loop bottom are closed Surround sealing ring cavity, before sealing loop forming or when shaping only need to the intracavitary casting polytetrafluoroethylene (PTFE) feed ethylene of sealing ring, on Mould, lower die act on simultaneously, can die forming sealing ring.After sealing ring die forming, positioned at lower die crossette it is vertical Direction run through at least one discharging mandril, realize automatic discharging under the driving of discharging power source, complete polytetrafluoroethylsealed sealed ring from Feeding is to die forming, the full-automatic processing of product discharging.

In the above-described embodiments, shown in Figure 2, the side of molding bulge loop 51, which is additionally provided with, is greater than the mould for connection diameter Pass through plug in the connection through-hole 511 of the connection through-hole 511 of the molding collar 53 of belling ring 51, molding bulge loop 51 and molding collar Device 52, molding collar are connected to the outside of molding bulge loop 51 pluggablely, may be implemented to process sealing ring of different shapes, It may be implemented to process the sealing ring of different dimensions, it is different that same set of upper and lower mold processing can be used in the setting of the structure Size and varying cross-section sealing ring.

In order to realize same purpose, can also upper mold 5 molding bulge loop 51 at least provided with three connection through-holes 511, Each connection through-hole 511 connects a plug-in and pull-off device 52.The plug of standard component can be used in plug-in and pull-off device 51 described here Pin can also have the device of plug function instead of using just not detailed here since the structure is relatively conventional with designed, designed Narration.

As shown in figure 3, groove 711 can also be equipped with close to center position in the crossette 71 of lower die 7, corresponded to outside lower die 7 It is equipped with the lower die bushing 72 for adjusting molding sealing ring size obtained in groove 711, processes different rulers also for realizing The sealing ring that same set of upper and lower mold processes different size and varying cross-section can be used in the sealing ring of very little specification.

More preferably embodiment is that feed pipe 9 passes through the molding bulge loop 51 of molding cylinder 3 or upper mold or the crossette 71 of lower die 7 Polytetrafluoroethylene (PTFE) feed ethylene is conveyed to sealing ring cavity, specifically passes through that device elder generation sealing ring feeding, it is fixed according to use habit.

What the embodiment of the present invention was announced is preferred embodiment, and however, it is not limited to this, the ordinary skill people of this field Member, easily according to above-described embodiment, understands spirit of the invention, and make different amplification and variation, but as long as not departing from this The spirit of invention, all within the scope of the present invention.

Claims

1. A tetrafluoro ring automatic molding machine, characterized in that: it comprises a mold base (2) fixed on the upright column (1), and a molding cylinder (3) arranged at the vertical center position of the mold base (2), wherein:

The molding cylinder (3), the top part drives the upper mold (5) with the molding convex ring (51) at the bottom to expand and contract up and down through the upper oil cylinder (4), and the lower part with the shoulder (71) is driven by the lower oil cylinder (6). The mold (7) can be stretched up and down;

The molding convex ring (51) of the upper mold (5) is arranged facing the shoulder (71) of the lower mold (7). The bottom of the convex ring (51) encloses a sealing ring cavity (8);

In the sealing ring cavity (8), the polytetrafluoroethylene ethylene material is obtained through the feeding pipe (9) connected to the metering device of the injection molding machine;

The vertical direction of the shoulder (71) of the lower die (7) runs through at least one unloading ejector rod (10), and the ejection ejector pin (10) is driven to move up and down by the unloading power source (11);

The upper oil cylinder (4), the lower oil cylinder (6) and the unloading power source (11) are all connected to the PLC control device (12).

2. The tetrafluoro ring automatic molding machine according to claim 1, characterized in that: the side surface of the molding convex ring (51) is further provided with a side surface for connecting the molding collar (53) with a diameter larger than the molding convex ring (51). The connecting through hole (511), and the connecting through hole (511) between the molded convex ring (51) and the molded collar (53) pass the plug-in device (52).

3. The tetrafluoro ring automatic molding machine according to claim 2, wherein the molding convex ring (51) is provided with at least three connecting through holes (511), and each connecting through hole (511) is connected to a plug-in device (52).

4. The tetrafluoro ring automatic molding machine according to any one of claims 1-3, characterized in that: the shoulder (71) of the lower mold (7) is provided with a groove (711) near the center position, and the lower mold (7) is provided with a groove (711). (7) The outer corresponding groove (711) is provided with a lower die bushing (72) for adjusting the size of the molded sealing ring.

5. The tetrafluoro ring automatic molding machine according to claim 4, characterized in that: the feeding pipe (9) passes through the molding cylinder (3) or the molding convex ring (51) of the upper mold or the protrusion of the lower mold (7). The shoulder (71) conveys the PTFE vinyl material to the seal ring cavity.