CN1163381C - Thermal shrinking wrapper sheet for bundling metal, prodn. method and using method - Google Patents
Thermal shrinking wrapper sheet for bundling metal, prodn. method and using method Download PDFInfo
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- CN1163381C CN1163381C CNB001180568A CN00118056A CN1163381C CN 1163381 C CN1163381 C CN 1163381C CN B001180568 A CNB001180568 A CN B001180568A CN 00118056 A CN00118056 A CN 00118056A CN 1163381 C CN1163381 C CN 1163381C
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Abstract
The present invention relates to bundling metal of a thermal shrinking plank stuff which is clamped under the condition that both ends of the thermal shrinking plank stuff are mutually opposite. The bundling metal comprises two long parts for clamping the thermal shrinking plank stuff, and the long parts have an opening/closing part. When the long parts are parallel mutually, the distance between the long parts of at least one end is larger than that of the middle part. The bundling metal has a structure that clamping force is applied to the thermal shrinking plank stuff by switching off the opening/closing part. The shape of the bundling metal is matched with an irregular part of a warped object by making the bundling metal form a deformation part, and the object is wrapped by the thermal shrinking plank stuff without forming an interstice.
Description
Technical field
The present invention relates to a kind of shroud ring metal, the shroud ring metallo-production method of thermal contraction panel shrinkage and packaging method that wraps up with thermal contraction sheet material of being used to.
Background technology
In order to keep enveloped body-for example, a metal tube, a cable etc.-insulativity, resistance to corrosion, waterproof property with thermal contraction sheet material parcel object, the method for shrinking sheet material by heating is widely used.In the case, for clamping thermal contraction sheet material, following technology is proposed.
(1) Japanese Utility Model No.169527/1982 has introduced a kind of method of using thermal contraction sheet material parcel object, the end of thermal contraction sheet material is clamped between a pair of rod part, and with the described rod part of intermediate plate clamping thermal contraction sheet material is fixed, described sheet material is carried out thermal contraction.
(2) Japanese patent application No.48860/1989 has introduced a kind of method of using thermal contraction sheet material parcel object, the end of thermal contraction sheet material is clamped between a pair of rod part, in the case, with steel wire with the opposite end of thermal contraction sheet material and the object shroud ring that will wrap up together, the two ends of thermal contraction sheet material are pushed to the object side.Say that further come clamping thermal contraction sheet material by clamp described rod part with intermediate plate, in the case, thermal contraction sheet material is by thermal contraction.
Yet,,,, need an intermediate plate in order to obtain gripping power because the rod part is a form of straight lines for technique scheme.Therefore, increased number of parts, also made the operability of stationary heat contraction sheet material bad.Especially, in above-mentioned prior art scheme (2), must use steel wire, this makes the work complexity.
Because intermediate plate has big heat absorption capacity, it hinders heating and cooling.That is to say that problem is: when heating, the hot tongues of fire of intermediate plate shielding heating torch; After the heating, intermediate plate needs certain hardening time.
In above-mentioned prior art scheme (2), owing to steel wire rod part and the object that will wrap up are bundled, when the object that will wrap up was the pipe of polyethylene sheath and so on, heat hot was shunk sheet material, can make the polyethylene sheath deliquescing.Therefore, steel wire may enter the shell of deliquescing.
Further say, in above-mentioned prior art scheme,, then be difficult to shrink sheet material, cause between object that will wrap up and thermal contraction sheet material to have the gap along the object contraction heat that will wrap up if the body surface that will wrap up has the fitfull position.
Therefore, main purpose of the present invention provides a kind of shroud ring metal, shroud ring metallo-production method of thermal contraction sheet material and the method for wrapping up with thermal contraction sheet material.Described thermal contraction sheet material can wrap up the object that the surface has the fitfull position, does not have the gap between object that will wrap up and thermal contraction sheet material, has good operability during work.
Summary of the invention
According to the present invention, a kind of shroud ring metal of thermal contraction sheet material is provided, with thermal contraction sheet material parcel object, and under the situation respect to one another of the two ends of thermal contraction sheet material clamping thermal contraction sheet material, it is characterized in that described shroud ring metal comprises two elongated workpieces that are used for clamping thermal contraction sheet material, these elongated workpieces have: an opened/closed part, it is to form like this: when elongated workpieces was parallel to each other, at least at one end, the distance between the elongated workpieces was bigger than the distance between the centre portion; With a crushed element, described crushed element extends to the opened/closed part, and matches with the fitfull position of wanting enveloped body, and the part in the crushed element is partly opened with a closed surface from opened/closed and stretched out at least; And shroud ring metallo-structure is to shrink sheet material by closed opened/closed part thermotropism to apply gripping power.
A kind of rod material or list are applicable to makes described shroud ring metal.As constituting shroud ring metallo-material, preferably has the metal of proper stiffness.For example, can use metal filament.
As a specific embodiment: " when elongated workpieces by parallel placement, be in the distance that distance between the parallel part is wider than centre portion at least in the end ".Have such a case: an end of each elongated workpieces is bent have a certain degree (Figure 1A); Also have such a case: two ends of each elongated workpieces all are bent have a certain degree (Figure 1B).Say that further elongated workpieces is made into an arc (Fig. 1 C).
In the shroud ring metal, when the end of elongated workpieces at least was separated from one another, thermal contraction sheet material was inserted between the elongated workpieces, and the two ends of clamping elongated workpieces make that thermal contraction sheet material is clamped.When two elongated workpieces are under the situation independent of each other, then need the two ends of clamping elongated workpieces, but inserting thermal contraction sheet material sometimes is the comparison difficulty.Therefore, an end of elongated workpieces can link to each other.That is to say that the form of shroud ring spare is to be folded to another elongated workpieces by coupling end from an elongated workpieces.
The shroud ring metal certainly is used to wrap up the object that does not have irregular position, and for example, end wise has the rod material of certain diameter.But it also can be used to wrap up the object that has irregular position from the teeth outwards effectively.That is to say that when the object that will be wrapped has the fitfull position, wish to form a crushed element on elongated workpieces, this crushed element is matched with the fitfull position, and extends to the opened/closed part.At least the part of crushed element is carried out from opened/closed part and is opened and stretch out on a surface of closed action.
The shroud ring metal at the two ends by clamping thermal contraction sheet material, to finishing heating, thermal contraction sheet material is clamped in the state that matches with irregular position from initial heat-up stage, simultaneously, the formation in gap between the restriction thermal contraction sheet material and the object that will wrap up.
In order to make opened/closed partly be in closure state, at an end of opened/closed part, form a hook portion at least.By described hook portion being hooked the other end of opened/closed part, opened/closed partly is kept closed.For example, have a kind of like this structure: the end of an elongated workpieces is bent to " U " shape, and the end of another elongated workpieces is hooked by described " U " shape.In another embodiment, on the neighboring of elongated workpieces, can settle a ring.
The shroud ring metallo-production method that the present invention is used for thermal contraction sheet material relates to a kind of long circular arc component production shroud ring metallo-method of using, and it comprises the steps: to form an elongated workpieces with circular shape; Around the center, the elongated workpieces of folding circular arc; The two ends of folding elongated workpieces are separated from each other.According to aforementioned production method, compare with crooked elongated workpieces, can produce the shroud ring metal with less work step.
On the other hand, packaging method of the present invention is a kind of method of wrapping up the object with small diameter portion and major diameter part with thermal contraction sheet material, and it comprises the steps:
(1) on thermal contraction sheet material corresponding to the zone of small diameter portion, settle lining cement,
(2) with thermal contraction sheet material parcel object, with above-mentioned shroud ring metal clamping thermal contraction sheet material, and the two ends that make thermal contraction sheet material are toward each other,
(3) by heating, shrink described thermal contraction sheet material.
Use packaging method of the present invention,, also can it closely be wrapped up, and can between small diameter portion and thermal contraction sheet material, not form the gap with thermal contraction sheet material even the object that is wrapped has small diameter portion and major diameter part.Especially, wish that the zone between small diameter portion and large-diameter portion branch forms a mild as far as possible taper by placing a kind of lining cement.In addition, except coated lining cement, " placement lining cement " also comprises adhesive sheet of placement (or band).
Description of drawings
Fig. 1 is a schematic plan view, shown shroud ring metal of the present invention, Figure 1A has shown the structure that at one end forms an opened/closed part, and Figure 1B has shown that at both ends forms the structure of an opened/closed part, and Fig. 1 C has shown formed arcuate structure;
Fig. 2 has shown the step with thermal contraction sheet material parcel object;
Fig. 3 has shown shroud ring metallo-embodiment of the present invention, and Fig. 3 A is whole shroud ring metallo-plan view, and Fig. 3 B is a lateral plan, has shown a short member, and Fig. 3 C is a lateral plan, has shown a long pole;
Fig. 4 has shown shroud ring metal of the present invention has been placed in state on the thermal contraction sheet material;
Fig. 5 has shown that described thermal contraction sheet material produces thermal contraction state afterwards;
Fig. 6 has shown the shroud ring metal in the another embodiment of the present invention, and at this, elongated workpieces is made into arc, and Fig. 6 A is a plan view, and Fig. 6 B is a lateral plan;
Fig. 7 has shown the test method with shroud ring metallo-gripping power shown in Figure 6, Fig. 7 A has shown a kind of test method, promptly determine the influence of the difference of ring diameter to gripping power, Fig. 7 B has shown a kind of test method, i.e. the difference of the bending spring of arch section and the relation between the gripping power.
The specific embodiment
Hereinafter will describe the present invention in detail.
At first, under state, the embodiment that the present invention recommended is described with thermal contraction sheet material shroud ring CATV connector.
First embodiment
Fig. 2 has shown the state with shroud ring metal parcel object of the present invention.In the object that is wrapped,, cable 23 is connected on the CATV equipment 20 by a connector end 21 and a CATV connector 22.CATV connector 22 is major diameter parts, and connector end 21 and cable 23 are small diameter portion, from the middle part of connector end 21 to the middle part of cable 23, with thermal contraction sheet material 10 parcels.Between the connector end 21 of the connector 22 of major diameter part and small diameter portion, have approximate rectangular diff-H, in above-mentioned diff-H part, whether can be wrapped up and the gap do not occur by thermal contraction sheet material, be very important.The size of the object each several part that wraps up is as follows:
The connector outer end diameter is 20mm
The external diameter of CATV connector is 27mm
The outside diameter of cable is 14mm
Fig. 3 has shown the shroud ring metal that is used to wrap up.Form described shroud ring metal by crooked stainless steel wire, the shroud ring metal has a crushed element 2 and is used to clamp the opened/closed part 3 of crushed element 2, and the shape of described crushed element matches with the profile of CATV connector.
By folding corrosion-resistant steel steel wire and make the steel wire keeping parallelism form crushed element 2, and form approximate " [" shape." [" is to be out of shape with the irregular position of the object that will be wrapped with matching in formation.In the case, not being strict with crushed element matches with the irregular position of the object that will wrap up.In addition, between parallel corrosion-resistant steel steel wire, there is a little gap 4.
Opened/closed part 3 is extended to crushed element 2, is formed " V " shape of an opening usually.By closed two ends, clamp crushed element 2.In one embodiment, in the opened/closed part 3 one is made up of long pole 3A, and another is made up of short member 3B.When closed long pole 3A and short member 3B, must make two rod members all remain on closure state, for the device that two rod members are kept closed, there is not concrete qualification.For example, as shown in Figure 4 and Figure 5, a ring 5 is placed on long pole and the short member, makes two rod members be in closure state.In the case, the end of long pole 3A preferably is folded into " L " shape, like this, can stop ring 5 to break away from when work.For described ring, can use a spiral spring.Why use a long pole 3A in an opened/closed part, and use short member 3B, purpose to stop ring to come off when work exactly in another, the length of two rod members can equate.In addition, in opened/closed part 3 shown in Figure 3, each end all is a linear, still, can construct the opened/closed part by following mode, for example, the end of long pole 3A (or short member 3B) is bent to U " shape, partly hook short member 3B (or long pole 3A) by making " U " shape; long pole 3A and short member 3B are maintained at a closed state; therefore, encircle 5 and spiral springs and can be omitted as mentioned above, thereby with low cost.
At least the part of crushed element 2 is partly opened with a closed surface from opened/closed and is stretched out.In other words, crushed element 2 stretches out in a surface that comprises long pole 3A and short member 3B.By making not in-line of opened/closed part 3 and crushed element 2, the thermal contraction sheet material of parcel object is in such state, and promptly it is matched with the fitfull position that will wrap up object.
The size of shroud ring metal each several part is as follows
Crushed element
The length a:14mm of end portion
The angle θ 1:23 of end portion °
The length b:25mm of centre portion
The length c:17mm of root portion
The angle θ 2:24 of root portion °
Centre portion and opened/closed part apart from d:7mm
The end of centre portion and end portion apart from e:5.5mm
The bending spring r of sweep (connecting bridge) is 1.5mm
The opened/closed part
The length of long pole 3A: 114mm
The length of short member 3B: 94mm
Between long pole and the short member angle theta 3:10 °
(experimental example 1)
Use above-mentioned shroud ring metal, a CATV connector is wrapped up by thermal contraction sheet material.In this embodiment, by changing the size that constitutes shroud ring metallo-corrosion-resistant steel gauge of wire and thermal contraction sheet material, the helpfulness of the operability of thermal contraction sheet material insertion crushed element and the shrinkage character of shell is determined.Thermal contraction sheet material can be a kind of like this sheet material, for example, but has crosslinked polyethylene heat shrinkability characteristic and that only extend at Width single pole spare, and is best, and the coated one deck heat of the inside face of sheet material is melted the adhesive of type.
Be under the free shrink state at sheet material, the size of thermal contraction sheet material is with representing that with afterwards length and thickness described length is the length on the shrinkage direction before shrinking.
Experimentize by following mode.At first, thermal contraction sheet material is around the object (Fig. 2) that will wrap up, and in the case, thermal contraction sheet material is settled like this, that is: thermal contraction sheet material side is positioned at the top of connector end, and another side is positioned at the top of cable; And the shrinkage direction of thermal contraction sheet material is the peripheral direction of the object that is wrapped.The shroud ring metal in the case, (Fig. 4) is settled from the side (side of CATV equipment) of thermal contraction sheet material toward each other in the two ends of thermal contraction sheet material.The opened/closed part of shroud ring metal 1 is opened a little, with the distance between the parallel-segment that increases crushed element, thermal contraction sheet material 10 respect to one another is inserted between the crushed element.In the case, by adjusting shroud ring metallo-position, make crushed element be placed in the top of CATV connector.Thermal contraction sheet material 10 shrinks by heating and forms a shell (Fig. 5).
Table 1
| Sequence number | Thermal contraction sheet material (mm) | Corrosion-resistant steel steel wire diameter (mm) | Retaining part gap (mm) | Operability | The shrink wrapped characteristic | |||
| Before the contraction | After the contraction | |||||||
| Length | Thickness | Length | Thickness | |||||
| 1-1 | 110 | 0.9 | 35 | 3.3 | 1.5 | 0.2 | Good | Enter inside, NG |
| 1-2 | 130 | 1.0 | 40 | 3.4 | 1.5 | 0.2 | Good | Enter inside, NG |
| 1-3 | 150 | 1.1 | 45 | 3.5 | 1.5 | 0.2 | Good | Enter inside, NG |
| 1-4 | 110 | 0.9 | 35 | 3.3 | 2.0 | 0.2 | The difficult insertion | Good |
| 1-5 | 130 | 1.0 | 40 | 3.4 | 2.0 | 0.2 | Good | Good |
| 1-6 | 150 | 1.1 | 45 | 3.5 | 2.0 | 0.2 | Good | Good |
| 1-7 | 110 | 0.9 | 35 | 3.3 | 2.5 | 0.2 | The difficult insertion | The gap appears in cable side |
| 1-8 | 130 | 1.0 | 40 | 3.4 | 2.5 | 0.2 | Good | The gap appears in cable side |
| 1-9 | 150 | 1.1 | 45 | 3.5 | 2.5 | 0.2 | Good | Good |
| 1-10 | 110 | 0.9 | 35 | 3.3 | 3.0 | 1.4 | The difficult insertion | Enter inside, NG |
| 1-11 | 130 | 1.0 | 40 | 3.4 | 3.0 | 1.4 | Good | Enter inside, NG |
| 1-12 | 150 | 1.1 | 45 | 3.5 | 3.0 | 1.4 | Good | Good |
As shown in table 1, when the corrosion-resistant steel gauge of wire was 1.5mm, steel wire was too thin, so that the crushed element gripping power is too little.Therefore, along with the contraction of sheet material, sheet material slides, and shifts to a side of the object that will wrap up from crushed element, and object can not be wrapped up (in table, being described to " entering inside, NG ") suitably.
On the other hand.When gauge of wire was 2mm, operability can allow, and the shrink wrapped characteristic is good, simultaneously, did not form the gap between object that will be wrapped and shell.Yet, in the case, in NO.1-4, when with thermal contraction sheet material parcel object, because the operability poor slightly (in the table, being described to " being difficult to insert ") between the crushed element is inserted in the existence of too short sheet material length and big diameter parts, thermal contraction sheet material.
When steel wire diameter was 2.5mm, in NO.1-7, operability at the opposite side (cable side) of thermal contraction sheet material, in NO.1-7 and NO.1-8, formed a little gap not as the operability among the NO.1-4 between object that will wrap up and shell.
On the other hand, when steel wire diameter is 3mm, among NO.1-10 and the NO.1-11, because gauge of wire is very big and hard, the impassabitity crooked steel wire reduces the gap between the crushed element, at crushed element, gripping power can not be used effectively, therefore, contraction along with sheet material, sheet material slides, and shift to a side of the object that will wrap up from crushed element, and object can not be wrapped up suitably.Especially, identical with the reason of NO.1-4, the operability of NO.1-10 is bad.About NO.1-12, though the gap between the crushed element is big, because thermal contraction sheet material is very thick, the gripping power of crushed element is effectively utilized, and therefore, object is wrapped up suitably.
(experimental example 2)
Do the experiment identical with table 1, the helpfulness of the shrinkage of the operability of thermal contraction sheet material insertion crushed element and shell is determined in the gap by changing crushed element and the angle theta 3 of opened/closed part.Table 2 has shown experiment condition and result.In addition, before contraction, the thickness of thermal contraction sheet material is 1.0mm, and after contraction, the thickness of thermal contraction sheet material is 3.4mm.
Table 2
| Sequence number | Thermal contraction sheet material | Corrosion-resistant steel steel wire diameter (mm) | Retaining part gap (mm) | Angle (°) | Operability | The shrink wrapped characteristic | |
| Length (mm) before shrinking | Length (mm) after shrinking | ||||||
| 2-1 | 130 | 40 | 2.0 | 0.7 | 3 | Good | Enter inner NG |
| 2-2 | 130 | 40 | 2.0 | 0.1 | 4 | Good | Enter inner NG |
| 2-3 | 130 | 40 | 2.0 | 0.1 | 7 | Good | Good |
| 2-4 | 130 | 40 | 2.0 | 0 | 10 | Good | Good |
| 2-5 | 130 | 40 | 2.0 | 0.3 | 10 | Good | Good |
| 2-6 | 130 | 40 | 2.0 | 0.5 | 10 | Good | Good |
| 2-7 | 130 | 40 | 2.0 | 0.7 | 10 | Good | Good |
| 2-8 | 130 | 40 | 2.0 | 0.8 | 10 | Good | Enter inner NG |
| 2-9 | 130 | 40 | 2.0 | 1.0 | 10 | Good | Enter inner NG |
As shown in table 2, when the corrosion-resistant steel gauge of wire was 2.0mm, the gap of crushed element was preferably less than 0.8mm, and the angle of opened/closed part is 7～10 °.
(experimental example 3)
In experimental example 2, wrap up under the described condition of NO.2-5, for thermal contraction sheet material is attached on the object that will wrap up, in advance around the position that occurs the gap easily, then, reusable heat shrinks sheet material around described adhesive strip with an adhesive strip.In experimental example, use the adhesive tapes made by thermoplastic plastic around as shown in Figure 2 connector end 21 in advance, thermal contraction sheet material wraps on the adhesive tapes.Because the length of connector end 21 is short and diff-H occurs between connector end 21 and connector 23, these positions are difficult to parcel.After heat hot is shunk sheet material, examine the position between connector end and the thermal contraction sheet material.Lining cement is layered on the whole periphery of connector end, and has determined that above-mentioned position is wrapped, and does not form the gap.
Second embodiment
Hereinafter introduce the shroud ring metal of the present invention that uses corrosion-resistant steel steel wire with arcuate structure.
Fig. 6 A is a plan view, has shown shroud ring metal of the present invention, and Fig. 6 B is a lateral plan.Bend to arc by the corrosion-resistant steel steel wire with linear portion, and in the centre stainless steel spring steel wire is folded into " U " shape (hair clip form), the extendible portion that makes arc and forms said structure toward each other.Shown in Figure 3, by crooked corrosion-resistant steel steel wire, and have a certain degree, and constitute opened/closed part 3 with crushed element 2.But in the present embodiment, by making the embowment of whole corrosion-resistant steel steel wire, and constitute opened/closed part 3.In the embodiment shown in fig. 3, have four crooked work steps: " an end bending " → " other end bending " → " central bend (forming the hair clip form) " → " bending of crushed element ".In the embodiment shown in fig. 6, only need three crooked work steps: " crooked arc " → " central bend (forming the hair clip form) " → " bending of crushed element ".
Because the stainless steel spring steel wire among the embodiment is in middle bending, therefore, the length of each rod member of opened/closed part 3 all is identical.Following structure and shroud ring metal shown in Figure 3 are identical.
(1) crushed element.
(2) according to bending arc, the opened/closed part is always opened wide and is " V " shape.
(3) when opened/closed partly is in closure state, the gap between the stainless steel spring steel wire is captured.
(4) in crushed element, form a little gap 4.
(5) in use, thermal contraction sheet material is inserted between the stainless steel spring steel wire, and opened/closed partly is in closure state.
(experimental example 4)
Shroud ring metal shown in Figure 6 is in closure state, and the internal diameter with ring of good gripping power is determined.By the bending spring of change corrosion-resistant steel steel wire and the internal diameter of ring, that the clamping degree that thermal contraction sheet material is inserted in the shroud ring metal is measured.Estimate the value of gripping power by following mode.Be two kinds of sheet materials below, show that as Fig. 7 A thermal contraction sheet material (1) (width is 45mm) and thermal contraction sheet material (2) (width is 10mm) with different in width are clamped in the shroud ring metal.When encircling 5 from an end when being placed on the shroud ring metal 1, just can measure the gap between two rod members of shroud ring metal.In addition,, and, make and to allow two rod members of shroud ring metal 1 enter closure state with ring 5, and cause, have considerable gripping power at position near the shroud ring metal center by bending to arc owing to two rod members contact with each other.Therefore, in experiment, sheet material is clamped in easy rising end, and simultaneously, the gap of the close middle body between the rod member is measured.
In experiment, be that 300mm, external diameter are that the stainless steel spring steel wire of 2.0mm is made the shroud ring metal with length, its bending spring is 400mm, 650mm or 900mm.Like this, gap 6 (Fig. 6 A) is 1.5mm ± 0.1mm, and folding in central authorities.It is such that each thickness is that the thermal contraction sheet material of 1.0mm is folded into actual shell, and at folded state, sheet material is clamped in the shroud ring metal.
Experimentize by following mode.At first, folding width is the thermal contraction sheet material (1) of 45mm and the thermal contraction sheet material (2) that width is 10mm, and above-mentioned each sheet material is clamped between the rod member of shroud ring metal 1, and Fig. 7 A (is seen) toward each other in the two ends of each sheet material.With internal diameter is the ring 5 of 4.3mm, is placed on the shroud ring metal 1 from the end, can make near the gap between two rod members at shroud ring metallic central position measured like this.Use internal diameter to repeat above-mentioned operation as the ring 5 of 5.5mm.Experimental result is as shown in table 3.
Table 3 (maximum clearance)
| Bending spring (mm) | The ring internal diameter | |
| φ4.3mm | φ5.5mm | |
| 400 | 2.10mm | 1.81mm |
| 650 | 2.22mm | 2.03mm |
| 900 | 2.13mm | 1.98mm |
As shown in table 3, use internal diameter to be 5.5mm, ring 5 with slight franchise, the gap is littler as the gap that ring caused of 4.3mm than using internal diameter, and wherein, internal diameter 4.3mm is near the diameter summation (4.0mm) of stainless steel spring steel wire.This is because when opened/closed partly is closed too tightly, in crushed element one side, owing to be clamped in the existence of the thickness of the thermal contraction sheet material between the opened/closed part, make that the gap between the corrosion-resistant steel steel wire is widened to some extent.
In shroud ring metallo-planar view (Fig. 3 A) shown in Figure 3, crushed element 2 is almost parallel linear portion forms, opened/closed part 3 relative deformation parts 2 curved having a certain degree, and simultaneously, opened/closed part 3 also is to be close to the linear portion form.Be positioned in by the thermal contraction sheet material of shroud ring metal clamping between the middle part of the end of crushed element 2 and opened/closed part 3.When opened/closed partly is closed, between " marginal portion and the crushed element of opened/closed part " and " curved end (end of crushed element side) ", between " above-mentioned marginal portion " and " end of the opened/closed part of sheet material ", distance between the corrosion-resistant steel steel wire becomes big, but just can not get enough gripping powers occasionally.Therefore, thermal contraction sheet material seldom separates from shroud ring metal 1.
On the other hand, in shroud ring metal shown in Figure 6, the marginal portion with crushed element 2 of opened/closed part 3 is formed a continuous arc, like this, can prevent coming off of sheet material.
(experimental example 5)
Use shroud ring metal shown in Figure 6, along its length direction, the dispersion of gripping power is determined.Test purpose is to determine: when the thermal contraction sheet material A～L with same width by the shroud ring metal shown in Fig. 7 B during clamping, can thermal contraction sheet material be held.
In experiment, used the used shroud ring metal of front experiment.Among thermal contraction sheet material A～L, the width of each sheet material is that 10mm, thickness are 1.0mm, identical in the material of used sheet material and the experimental example 1.
Test by following step.At first, folded heat shrinks sheet material A～L.Under the state respect to one another of the two ends of thermal contraction sheet material, with each folding thermal contraction sheet material (seeing Fig. 7 B) of shroud ring metal 1 clamping.Is that the ring 5 of 5.5mm is placed on the shroud ring metal 1 from an end with internal diameter, to keep the closure state of two rod members.With hand hand inspection thermal contraction sheet material, determine whether thermal contraction sheet material comes off.By changing shroud ring metallo-bending spring, repeat above-mentioned test.Table 4 has shown test result.Represent to have enough gripping powers with O, represent that with X sheet material comes off easily, represent that with XX sheet material can come off naturally.
Table 4 (gripping power)
| Bending spring (mm) | A | B | C | D | E | F | G | H | I | J | K | L |
| 100 | O | O | O | XX | XX | XX | XX | XX | XX | XX | XX | O |
| 200 | O | O | O | O | O | XX | XX | XX | XX | XX | XX | O |
| 300 | O | O | O | O | O | X | X | X | X | X | O | O |
| 400 | O | O | O | O | O | X | X | O | O | O | O | O |
| 650 | O | O | O | X | X | X | X | X | X | X | O | O |
| 900 | O | O | X | X | X | X | X | X | X | O | O | O |
| Infinitely great | O | O | X | X | X | X | X | X | X | X | O | O |
As shown in table 4, when bending spring was 100mm or 200mm, shroud ring metallo-gripping power was too big; When use has the shroud ring metal 1 of round section, take place to interlock, cause thermal contraction sheet material to come off.The meaning that term " interlocks " is: in the unlatching and closure surfaces of opened/closed part, two corrosion-resistant steel steel wires are not parallel placements, can not shroud ring sheet material.When taking place sheet material not only to take place come off when staggered, and the folding sheet material after being heated do not attach the object that is wrapped, and sheet material can not be shunk fully.In experiment, when bending spring was 400mm, test result was best.
(experimental example 6)
From above-mentioned test result, the repeatability of using shroud ring metal shown in Figure 6 can realize wrapping up object wherein, has irregular position on described object surfaces.By bending length is that 300mm, bending spring are that 400mm, external diameter are the stainless steel spring steel wire of 2.0mm, and at the folding stainless steel spring steel wire of central authorities, forming width is the gap 4 of 1.5 ± 0.1mm, as shown in Figure 6A, has prepared shroud ring metal 1.By deforming steel wire, shown in Fig. 6 B, form the crushed element 2 of shroud ring metal 1, match with CATV connector 22, described CATV connector 22 is exactly the object that is wrapped among Fig. 2.The size of CATV connector 22 each several parts and shroud ring metal deformation part measure-alike, i.e. size a shown in the embodiment 1～e, angle θ 1 and θ 2.
By following mode, carry out the test of repeatability.Length is 130mm, and thickness is that the thermal contraction sheet material 10 of 1.0mm centers on enveloped body (Fig. 2).By heating, the length of thermal contraction sheet material 10 becomes 40mm, thickness becomes 3.4mm, in the case, thermal contraction sheet material is to place like this: a side of thermal contraction sheet material 10 is positioned at the top of connector end 21, opposite side is positioned at the top of cable 23, and simultaneously, the thermal contraction direction of sheet material is consistent with the object peripheral direction that will wrap up.So, the two ends of thermal contraction sheet material 10 toward each other, its state is from a side (side of CATC equipment) shroud ring metal 1 to be placed on (Fig. 4) on the thermal contraction sheet material 10.The opened/closed part 3 of shroud ring metal 1 is opened slightly, so that widen crushed element 2, simultaneously, the thermal contraction sheet material of facing mutually 10 is clamped in the crushed element 2.In the case, adjust the position of shroud ring metal 1, so as crushed element 2 be placed on CATV connector 22 around.And internal diameter is the end that the ring 5 of 5.5mm is placed on shroud ring metal 1, and opened/closed partly is fixed in closure state.Then, heat, make thermal contraction sheet material 10 shrink by using an electric heater (not shown).Therefore, shroud ring metal 1 can not be from slippage on the thermal contraction sheet material, and it can be attached on the object that will wrap up fully.Use shroud ring metal 1 to repeat parcel in a like fashion No. 10 times.Thermal contraction sheet material does not come off from the shroud ring metal, thereby has good repeatability.
As mentioned above, according to shroud ring metal of the present invention and method, can obtain following effect.
(1) even on the object surfaces that will be wrapped, have the fitfull position, also can wrap up, and between object that is wrapped and thermal contraction sheet material, can not form the gap with thermal contraction sheet material.
(2) do not use intermediate plate or steel wire, thermal contraction sheet material is heated, reduced number of parts, improved operability.Especially,, form the shroud ring metal of " U " shape, only, just the shroud ring metal can be placed on the thermal contraction sheet material from the lateral edges of thermal contraction sheet material by connecting the end of two elongated workpieces.
(3) have between the shroud ring metallo-metal rod of certain bending spring by thermal contraction sheet material is inserted, sheet material can be by clamping equably.In addition, by the annex of selecting to be fit to, can be so that shroud ring metallo-end be kept closed, like this, gripping power just can be changed.So installing according to thermal contraction sheet material just becomes possibility.Therefore, thermal contraction sheet material can closely be attached on the object that will wrap up.
(4) shroud ring metallo-production method of the present invention: be earlier stainless steel spring steel wire to be bent to circular arc, therefore the folding corrosion-resistant steel steel wire around the center, has reduced the production work step again, has increased economic benefit and operability.
Claims (7)
1. the shroud ring metal of a thermal contraction sheet material, with thermal contraction sheet material parcel object, and under the situation respect to one another of the two ends of thermal contraction sheet material clamping thermal contraction sheet material, it is characterized in that,
Described shroud ring metal comprises two elongated workpieces that are used for clamping thermal contraction sheet material, and these elongated workpieces have:
An opened/closed part, it is to form like this: when elongated workpieces is parallel to each other, at least at one end, the distance between the elongated workpieces than the distance between the centre portion big and
A crushed element, described crushed element extends to the opened/closed part, and matches with the fitfull position of wanting enveloped body, and the part in the crushed element is partly opened with a closed surface from opened/closed and stretched out at least; And
Shroud ring metallo-structure is to shrink sheet material by closed opened/closed part thermotropism to apply gripping power.
2. the shroud ring metal of thermal contraction sheet material according to claim 1 is characterized in that: at least at an end of each elongated workpieces, be bent and have a certain degree.
3. the shroud ring metal of thermal contraction sheet material according to claim 1 is characterized in that: each elongated workpieces all is made into circular arc.
4. according to the shroud ring metal of claim 2 or 3 described thermal contraction sheet materials, it is characterized in that: the end of elongated workpieces links to each other, and forms an elongated workpieces; By connecting bridge, this elongated workpieces can fold on another elongated workpieces.
5. according to the shroud ring metal of claim 1,2 or 3 described thermal contraction sheet materials, it is characterized in that: in the end of an opened/closed part partly, form a hook portion at least; Shroud ring metallo-structure is by hook portion being hooked the other parts in the opened/closed part, making opened/closed partly be in closure state.
6. the shroud ring metallo-production method of a thermal contraction sheet material, described shroud ring metal comprises two elongated workpieces that are used for clamping thermal contraction sheet material, these elongated workpieces have: an opened/closed part, it is to form like this: when elongated workpieces is parallel to each other, at least at one end, the distance between the elongated workpieces is bigger than the distance between the centre portion; With a crushed element, described crushed element extends to the opened/closed part, and matches with the fitfull position of wanting enveloped body, and the part in the crushed element is partly opened with a closed surface from opened/closed and stretched out at least; And shroud ring metallo-structure is to shrink sheet material by closed opened/closed part thermotropism to apply gripping power, it is characterized in that this method comprises the steps: to form the elongated workpieces with circular shape; The elongated workpieces of folding circular arc is separated from each other the elongated workpieces two ends around the center.
7. method that has the object of small diameter portion and major diameter part with thermal contraction sheet material parcel, described shroud ring metal comprises two elongated workpieces that are used for clamping thermal contraction sheet material, these elongated workpieces have: an opened/closed part, it is to form like this: when elongated workpieces is parallel to each other, at least at one end, the distance between the elongated workpieces is bigger than the distance between the centre portion; With a crushed element, described crushed element extends to the opened/closed part, and matches with the fitfull position of wanting enveloped body, and the part in the crushed element is partly opened with a closed surface from opened/closed and stretched out at least; And shroud ring metallo-structure is to shrink sheet material by closed opened/closed part thermotropism to apply gripping power, goes to be characterised in that this method comprises the steps:
On thermal contraction sheet material,, settle lining cement corresponding to the zone of small diameter portion;
With thermal contraction sheet material parcel object, under the situation respect to one another of the two ends of thermal contraction sheet material, with the described shroud ring metal of claim 1 clamping thermal contraction sheet material;
By heating, make described thermal contraction panel shrinkage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001180568A CN1163381C (en) | 2000-05-13 | 2000-05-13 | Thermal shrinking wrapper sheet for bundling metal, prodn. method and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001180568A CN1163381C (en) | 2000-05-13 | 2000-05-13 | Thermal shrinking wrapper sheet for bundling metal, prodn. method and using method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1323725A CN1323725A (en) | 2001-11-28 |
| CN1163381C true CN1163381C (en) | 2004-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001180568A Expired - Fee Related CN1163381C (en) | 2000-05-13 | 2000-05-13 | Thermal shrinking wrapper sheet for bundling metal, prodn. method and using method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1163381C (en) |
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2000
- 2000-05-13 CN CNB001180568A patent/CN1163381C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1323725A (en) | 2001-11-28 |
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