CN1199787C - Equipment and method for forming plates adapted for rigid plastic pipes connection - Google Patents
Equipment and method for forming plates adapted for rigid plastic pipes connection Download PDFInfo
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- CN1199787C CN1199787C CN 01119357 CN01119357A CN1199787C CN 1199787 C CN1199787 C CN 1199787C CN 01119357 CN01119357 CN 01119357 CN 01119357 A CN01119357 A CN 01119357A CN 1199787 C CN1199787 C CN 1199787C
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Abstract
The present invention relates to a method and a device for forming a plate which is used for connecting rigid plastic pipes. The method of the present invention comprises the following steps: forming a hole on a metal plate; heating the metal plate to 300 to 600 DEG; drawing the metal plate to prolong the dimension and the distance of the hole. A first forming roll with an uneven waveform part is arranged; a second forming roll with a linear uneven part is arranged above the first forming roll. A melting net 3 and a resin plate are arranged between the first forming roll and the second forming roll; a convexity and a groove are formed on the melting net via the forming rolls. Therefore, the plate integrally molten by the resin plate and the melting net is formed.
Description
Technical field
The present invention relates to a kind of method that is used to form the sheet material that is applicable to the welding rigid plastic pipes, described sheet material is used to connect the rigid plastic pipes that is used as water pipe, gas pipe, sewage pipe and drainpipe.Specifically, the present invention relates to a kind of method that is used to form sheet material, described sheet material is used to connect rigid plastic pipes, can enough this modes easily be connected rigid plastic pipes securely, promptly use a fusing net (fused-Las), by a pair of format roll, by tear, heating and drawing one metallic plate form described fusing net to form uniform hole, it is online that continuous waveform patterns is formed on fusing, and simultaneously, the fusing net is fixed by format roll.
Background technology
Rigid plastic pipes, for example water pipe, gas pipe, sewage pipe and drainpipe are formed particular length, as the hot fusing method that described pipe is connected to each other and combines, have modes such as butt joint welding, socket welding and sheet material welding.
The socket welding process that the flat 4-171392 of day patent application of the present disclosure is introduced has inconvenient part, promptly selects to have a tube connector corresponding to the size of rigid plastic pipes diameter, and rigid plastic pipes and tube connector must be fitted to each other.If the end displacement or the bending of pipe, pipe can not be used.
In addition, prior art has a kind of structure, by the work step that spumes in the manufacturing process, insulated wire is manufactured into a screw type heating wire, and by being placed in the injection mold, heating wire is injected into shape, make final products, so heating wire is inserted into tube connector.
Therefore, have several problems, according to the diameter of pipe, when forming product, injection molding equipment must increase volume, and corresponding to the volume of injection molding equipment, the cost of product is considerably high.
When the rigid plastic pipes of circle was connected, energy was not to be provided to whole surface equably, therefore, can not provide one to melt effect uniformly.If after finishing welding, supply water, owing to hydraulic pressure, leak, the initial ring environment pollution, running water is wasted.
The sheet material welding process that Korean Utility Model 124493 (mandate on July 12nd, 1998) is introduced has such problem; the mother metal that is sheet material is made a net form coil to heating wire; use low density polyethylene (LDPE) (LDPE) flexible to protect; but because it has different physical characteristics and melting point with the high density polyethylene (HDPE) (HDPE) of the mother metal that is used as rigid plastic pipes; described rigid plastic pipes is connected on the sheet material; when being connected to one another at a time-out, sheet material and rigid plastic pipes can not play the effect of single integral body.
Particularly, thermoplastic resin (LD, MD, HDPE) in, after using the heating of heater or heating wire, by exterior vibration and hydraulic pressure, the underground buried structure of interface applications welding or sheet material welding process can be separated easily.
It is important and perfect that the thermoplastic resin of requirement chemical heat stability is connected under identical melting point and physical characteristic.
In addition, after one resin plate is formed by injection moulding, one connection space and a heat compensator are integrally formed with one another, one reticulated coil that is suitable for the size of connection space and heat compensator is connected on the integrated connection space and heat compensator, one is used to provide the thermally coupled of the energy to be connected, thereby, being used as a melted join plate, described plate is a pipe fused component.
In said method, when connection space and heat compensator were shaped by general injection, large diameter (1000mm or bigger) sewage pipe and drainpipe were buried under the ground.So method requires different technology, for example injection moulding is connected with netted, thereby, cause the rising of manufacturing cost.
In addition, reticulated coil is a vertical two-sided symmetrical structure, and the center is on the connection space of resin plate both sides, and heat compensator is positioned at the center of resin plate, so that accept energy.Yet after resin plate encased pipe, if energy is supplied to the connection terminal, only in the part of LD resin plate, the non-contact area arrived melting point, because overheated, contact area causes the rigid plastic pipes distortion.
In the intersection of the resin plate that centers on the pipe circumference,, need the gap to stop spark owing to produce spark.Yet, produce leakage at gap location, thereby, waste resource, the severe contamination earth, economic loss and similar consequence are just arranged.
At sunk area, lap just, melting point resin is 220 ℃, the fusing point of the resin binder of resin plate lap is 120 ℃.If lap is fully depressed, spark then appears, after this, catches fire at sunk part owing to overheated.
In addition, because reticulated coil is woven together each other, resistance is inhomogeneous, has very big resistance difference.So a high resistance partly caves in, therefore breaking out of fire, is difficult to make coil, can not guarantee safety.
Summary of the invention
An object of the present invention is to provide the method that a kind of improved formation is applicable to the sheet material of welding rigid plastic pipes, even resin plate and fusing Netcom are crossed between a pair of format roll, during turning simultaneously, format roll is heated, and uses the uneven part on the format roll to form uneven surface.
Another object of the present invention is projection and the groove that forms waveform in the inside of welded pipe with the spacing of rule, will melt net and integrally be fixed on the melted surface to melt rigid plastic pipes.
Another object of the present invention is to stop to leak, owing to after welding, going up in the opposite direction with water leakage side, waveform patterns is formed on projection and the groove.
For realizing above-mentioned purpose of the present invention, the invention provides the method that a kind of formation is applicable to the sheet material of welding rigid plastic pipes, described method comprises the steps: to form the hole on metallic plate, and metallic plate is heated to 300～600 ℃, the drawing metallic plate is with the size and the spacing of elongated pore; Make the fusing net; Setting has first format roll of the uneven part of waveform, second format roll that will have the uneven part of a linear is arranged on the top of first format roll, an one fusing net and a resin plate are set between first and second format rolls, wherein by the process format roll, projection and groove are formed on fusing on the net, so resin plate and fusing net are formed by the sheet material of whole welding.
Description of drawings
The description that the preferred embodiment of the present invention is carried out in conjunction with the drawings, other advantage of the present invention and feature will become clearer, in the accompanying drawing:
Fig. 1 has shown the installment state of plates forming equipment of the present invention;
Fig. 2 has shown the mode of operation of plates forming equipment of the present invention;
Fig. 3 is a perspective view, has shown sheet material of the present invention;
Fig. 4 has shown the state that is connected that uses rigid plastic pipes of the present invention;
Fig. 5 is a plan view, has shown deployed condition of the present invention;
Fig. 6 is a front view, has shown deployed condition of the present invention;
Fig. 7 is an enlarged cross-sectional view of the present invention;
Fig. 8 is a viewgraph of cross-section that amplifies, and has shown fusing net according to the invention;
Fig. 9 is a plan view, has shown the sheet material that is done that meets another embodiment of the present invention;
Figure 10 is the viewgraph of cross-section that amplifies of Fig. 9.
The specific embodiment
Hereinafter will be described the preferred embodiment of the present invention in conjunction with the accompanying drawings.
Make a fusion sheet material 1 by following step.Provide and have cast or be cut into the metallic plate that has otch in the preliminary dimension.Hole 37 is formed on the metallic plate with vertical in form, and metallic plate is heated, drawing when temperature is 300～600 ℃.When metallic plate during by drawing, because heating, the hole is extended, and therefore, a complete connected fusing net 3 is made of.After fusing net 3 was handled, guide plate 23 provided resin plate 2, the one fusing nets 3 of a usefulness ester moulding to be set at the upside of resin plate 2.When fusing net 3 is set at the top of resin plate 2, second format roll 22 ' and first and second format rolls 22,22 ' that make first format roll 22 of their first uneven parts 45 by having waveform and have a uneven part 45 ' of linear are heated to 200 ℃.Projection 7 that be formed this moment continuously and groove 8 are integrally formed on resin plate 2 and the fusing net 3, and therefore, sheet material 1 is made of.
In processing fusing net operation, in being heated to 300～600 ℃ heating work step, hole 37 is expanded since under vacuum condition by heat treatment, elasticity reduces.In addition, metallic plate is perforated, heating and drawing, in order to form hole 37 equally spacedly, therefore, when rigid pipe 11 and 11 ' during by fusion, provides uniform electric current.
One metallic sieve can be used as fusing net 3, if metallic sieve is placed on the resin plate 2, makes them pass through format roll 22 and 22 ', forms the projection 7 and the groove 8 of waveform, and therefore, fusing net 3 integrally is fixed on the resin plate 2.
Being heated into forming roll 22 and 22 ' will melt net 3 easily and compress and be fixed on the resin plate 2.Yet, not being heated into forming roll 22 and 22 ', resin plate 2 and 3 also can be formed an integral body.
Hereinafter detailed introduction is used plates forming equipment 21 to form the method and structure of sheet material 1.
Supported by pillar 25 according to plates forming equipment of the present invention, have format roll 22 and 22 ' at upside.Has heating wire in the format roll 22 and 22 ', by the Current Control temperature.
Except electrification, can utilize oil or other material that the temperature of format roll 22 and 22 ' is controlled.Format roll 22 and 22 ' has the uneven part that is respectively applied for formation projection 7 and groove 8.During turning, format roll 22 and 22 ' will melt net 3 and resin plate 2 forms an integral body, therefore, has made a fusion sheet material 1.
Be supported on the control panel 32 of controlling in the space 34 with the control lever 33 that format roll 22 links to each other with 22 ', link to each other with Control Shaft 36 by upper plate 35.Control lever 33 is moved into forming roll 22 and format roll 22 ' is rotated, subsequently, utilize belt 30 and 31 or gear format roll 22 is rotated.
One control element 24 is positioned in a side of format roll 22, the operation of control motor 26, by a chain 28, use to be decelerated the driving force rotation rotating shaft 29 that device 27 is slowed down, described control element 24 is controlled to the temperature of forming roll 22 and 22 ' by belt 30 and 31.
By control element 24 drive motors 26, plates forming equipment 21 transmits and drives energy, therefore, format roll 22 and 22 ' is rotated, and utilizes format roll 22 and 22 ' inner heating wire, and format roll 22 and 22 ' is heated to 200 ℃.Resin plate 2 and 3 is stacked upon on the guide plate 23 and is provided between format roll 22 and 22 '.
Be provided to resin plate and 3 between format roll 22 and 22 ' by between the format roll 22 and 22 ' that is heated and rotates, uneven part 45 by waveform is pushed, therefore, resin plate 2 is melted and forms an integral body with fusing net 3, simultaneously, the projection 7 of waveform patterns and groove 8 are formed on the upper surface of sheet material 1 of fusion.
Preferably with the form of ripple, projection 7 and groove 8 are formed on the upper surface of resin plate 2, but if necessary, fusing net 3 is fixed and twines pitch tube 11 and 1 '.
By the fusion plate 1 that forms through the format roll 22 and 22 ' moulding that is done.Utilize projection 7 and groove 8, fusing net 3 is integrally formed on the resin plate 2, therefore, is used for the surface of molten resin plate 2.
If Control Shaft 36 rotates on upper plate 35, the control lever 33 in the control space 34 vertically moves by control panel 32, is adjusted to spacing between forming roll 22 and 22 ', and therefore the degree of depth of projection 7 and groove 8 can be adjusted.
In addition, utilize temperature of format roll 22 and 22 ' and uneven part 45 driving fusing nets 3 to enter resin plate 2, so that both are together fixed to one another, the size and the degree of depth of projection 7 and groove 8 are adjusted.Fusing net 3 adopts " ∏ " form, has blank parts 39 in central authorities.
At this moment, because guide plate 23 is wide, thereby the same time, provide three resin plates 2 to form sheet material 1, a wide plate can be formed, thereby the width of fusion plate 1 can be freely adjusted.In addition, format roll 22 and 22 ' length also can freely be adjusted.
By cutting, the fusion plate 1 that is formed the plate shape of using synthetic resin has a cutting surface 10 that is formed by cutting, and the lap of described cutting surface 10 on the surface 9 of resin plate 2 tilts.
The format roll 22 and 22 ' of waveform is heated, and extruding fusing net 3, will melt net 3 and be fixed on the resin plate 2.The user can make the stationary state of with the naked eye externally seeing fusing net 3.
The fusing net 3 that is fixed on the sheet material 1 can be installed into multi-form.In the present invention, fusing net 3 is fixed on the part of melted surface 2, and has an intermediate surface 4 and the outer surface 5 that is formed on intermediate surface 4 both sides.
There is lead-out wire 6 both sides at fusing net 3, so that provide energy from the outside by a melting unit.In the part that is fixed, fusing net 3 produces heat in the part that is fixed, and makes rigid plastic pipes 11 and 11 ' fusing.
When rigid pipe 11 and 11 ' is melted, rigid pipe 11 and 11 ' position is cleaned on every side on the sheet material 1, sheet material 1 is rolled, with 6 provide electric current to lead-in wire, the whole surface of fusing net 3 is by the current flow heats by lead-in wire 6, resin plate 2 is melted, and therefore rigid plastic pipes 11 and 11 ' is combined.
At this moment, because lead-in wire 6 provides reversal, by tearing metallic plate point-blank, fusing net 3 is formed, and the size in hole 37 and spacing are uniformly, and the resistance that fusing net 3 is produced is identical with the resistance that a single line connects generation, resistance value is fixed, therefore, when rigidity plastics 11 and 11 ' pipe are connected, provide stability.
Because fusing net 3 resembles and is connected the single line, after on integrally being formed on resin plate 2, during the heating work step, without any not having connected part, by heating equably, resin plate 2 is melted on the whole equably, and therefore, rigid plastic pipes 11 and 11 ' has on the whole uniformly in conjunction with effect.
In addition, when sheet material 1 was wrapped on rigid plastic pipes 11 and 11 ', the projection 7 and the groove 8 that are formed on sheet material 1 upper surface can use little power to be bent easily, thereby sheet material 1 is provided with easily, utilizes fusing net 3, burn-off rate is enhanced, and the fusing amount is increased.
In addition, even resin plate 2 melts equably with rigid plastic pipes 11 and 11 ', because leaking may appear in hydraulic pressure.Yet in the present invention, the projection 7 of waveform patterns and groove 8 are formed on one perpendicular to leaking on the direction that direction takes place, and therefore, have stoped leakage effectively.
Therefore, by leaking stoping, can not reveal perpendicular to the direction of leaking by projection 7 and groove 8 in a plurality of stages.
Because the side of melted surface 2 is formed a circle, the cutting surface 10 on surface 9 is easy to be formed a circle, and the coupling part of fusing net 3 is superimposed on the outside on cutting surface 10.
Cutting surface 10 not only is melted net 3 fusings at circumferencial direction, and melts at the connected net 3 that vertically is melted, and therefore, stops at lap to occur leaking.
In the present invention, sheet material 1 is formed a rectangle, but also can be formed different shapes, for example circle or oval.Sheet material 1 can be formed with this mode, promptly melts net 3 and is placed on the resin plate 2, uses pressing mode to exert pressure, and needn't use format roll 22 and 22 '.
As shown in Figures 9 and 10, substitute and to be formed on the waveform patterns on the projection 7 and groove 8 on the resin plate 2, one sheet material 1 ' can be formed with this mode, promptly use format roll 22 that bossing 50 is formed on fusing net 3 and the resin plate 2, described format roll 22 has the uneven part of linear pattern that resembles the format roll 22 '.
In addition, sheet material 1 can be formed with this mode, promptly melts on the upper surface that net 3 is placed in plate, and uneven part is formed circle.Can predict that sheet material can be formed other form that is equal to.
As mentioned above, metallic plate is heated to 300～600 ℃ and by drawing, when metallic plate is torn and carries, make the size and the spacing in hole even, when rigid plastic pipes is melted by resembling the fusing net that connects the single line, resin plate is melted equably, thereby, welding performance stable and rigidity is provided.
Resin plate is provided with the waveform patterns on projection and groove, and fusing net 3 is integrally fixed, so by single technology, fusing net 3 is fixed on the resin plate.
After resin plate and rigid plastic pipes welding and combination, on perpendicular to the direction of leaking direction, utilize projection and groove with waveform patterns, resin plate is fused, and has therefore stoped the leakage by several solid-state weld bonds.
Sidepiece on the surface, sheet material have a cutting surface, and are rolled into a circle in the position that pipe is overlapped, and therefore, have stoped the leakage at overlap.
Below the present invention has been done very detailed description, thus after reading and having understood this specification, for a person skilled in the art, various changes of the present invention and revise and will become obvious.So all are so changed and correction is also included within this invention, so they are in the protection domain of claims.
Claims (1)
1. a formation is applicable to the method for the sheet material of welding rigid plastic pipes, and described method comprises the steps:
Form the hole on metallic plate, metallic plate is heated to 300～600 ℃, the drawing metallic plate is with the size and the spacing of elongated pore;
Make the fusing net;
Setting has first format roll of the uneven part of waveform, and second format roll that will have the uneven part of a linear is arranged on the top of first format roll, and a fusing net and a resin plate are set between first and second format rolls,
Wherein by through format roll, projection and groove are formed on fusing on the net, so resin plate and fusing net are formed by the sheet material of whole welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01119357 CN1199787C (en) | 2001-05-30 | 2001-05-30 | Equipment and method for forming plates adapted for rigid plastic pipes connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01119357 CN1199787C (en) | 2001-05-30 | 2001-05-30 | Equipment and method for forming plates adapted for rigid plastic pipes connection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1387995A CN1387995A (en) | 2003-01-01 |
| CN1199787C true CN1199787C (en) | 2005-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01119357 Expired - Fee Related CN1199787C (en) | 2001-05-30 | 2001-05-30 | Equipment and method for forming plates adapted for rigid plastic pipes connection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1199787C (en) |
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2001
- 2001-05-30 CN CN 01119357 patent/CN1199787C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1387995A (en) | 2003-01-01 |
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