CN209246898U - Hot flow path thermal insulation layer gap measuring apparatus - Google Patents
Hot flow path thermal insulation layer gap measuring apparatus Download PDFInfo
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- CN209246898U CN209246898U CN201822160478.7U CN201822160478U CN209246898U CN 209246898 U CN209246898 U CN 209246898U CN 201822160478 U CN201822160478 U CN 201822160478U CN 209246898 U CN209246898 U CN 209246898U
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- flow path
- hot flow
- gasket
- insulation layer
- thermal insulation
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Abstract
The utility model relates to a kind of hot flow path thermal insulation layer gap measuring apparatus, including gasket, the gasket is the shell structure of uniform thickness, the inner surface of the gasket is the space curved surface that can be fitted with the head surface for the hot flow path for forming the tested heat-insulated lamellar spacing of hot flow path, and the outer surface of the gasket is the space curved surface that can be fitted with the hole bottom surface in the hot flow path hole for forming the tested heat-insulated lamellar spacing of hot flow path.The utility model can be realized the measurement to the heat-insulated lamellar spacing of hot flow path, so that installation, the repair for hot runner system provide foundation, and then improve the appearance quality of injecting products near cast gate.
Description
Technical field
The utility model relates to a kind of measurement tooling of injection mold, specially one kind is capable of measuring the heat-insulated lamellar spacing of hot flow path
Device, belong to injection mold technology.
Background technique
It is directly heated by the way that electric heating coil is arranged around runner, hot runner system can guarantee the modeling of runner and cast gate
Heating flow channel is only needed extremely when expecting to remain molten condition, therefore no longer need to shut down in injection moulding process to take condensate, then being switched on
Required temperature.This feature makes hot runner system that production efficiency not only can be improved, while can also reduce waste material, contracting
Short injection cycle reduces production cost, therefore hot runner system is more and more widely used in Injection Mold Design.
However there is very high temperature since hot flow path head is directly heated by electric heating coil, herein between mould gate wall
The heat-insulated lamellar spacing in gap with about 0.3mm-0.5mm, referred to as hot flow path, this gap is by filling plastic.If heat-insulated lamellar spacing
It is worth excessive, then the plastics filled easily are washed into die cavity and form silver-colored chevilled silk, if this gap value is too small, the hot-fluid of high temperature on product
The product near cast gate is easily scalded in road head, forms open defect, therefore there is the appearance of product in the heat-insulated lamellar spacing of hot flow path
Very big influence.
Due to more deep at insert heat flow passage sprue, machining accuracy is not easy to guarantee, and heat-insulated lamellar spacing is in hot flow path system
System is difficult to measure again after going deep into cover half, this brings difficulty to installation, the repair of hot runner system, and usual hot flow path company only surveys
Shape at the cast gate of mold is measured, can not consider the influence of hot flow path head deviation, i.e. institute's measured value is not theoretic heat-insulated interlayer
Gap value.
Summary of the invention
The purpose of the utility model is to provide a kind of hot flow path thermal insulation layer gap measuring apparatus, can be realized to hot flow path every
The measurement in thermosphere gap so that installation, the repair for hot runner system provide foundation, and then improves near cast gate outside product surface
Appearance quality.
The main technical schemes of the utility model have:
A kind of hot flow path thermal insulation layer gap measuring apparatus, including gasket, the gasket are the shell structure of uniform thickness, the pad
The inner surface of piece is the space song that can be fitted with the head surface for the hot flow path for forming the tested heat-insulated lamellar spacing of hot flow path
Face, the outer surface of the gasket are can be affixed with the hole bottom surface in the hot flow path hole for forming the tested heat-insulated lamellar spacing of hot flow path
The space curved surface of conjunction.
The complete configuration of gasket is often cased with multiple gaskets, and the thickness of each gasket is not mutually equal.
In every set the most thin gasket with a thickness of 0.3mm, the most thick gasket with a thickness of 0.6mm.
Gasket described in every set has 4, and thickness is respectively preferably 0.3mm, 0.4mm, 0.5mm and 0.6mm.
The inner surface of the gasket is spherical surface.
The radius of the spherical surface is in 4-8mm range.
The gasket includes core and the skirt section for surrounding the core, and the skirt section includes multiple centered on the core
The outside radial stick to scatter.
The core is equipped with through-hole, and the gasket is additionally provided with hook silk, and the hook silk is located in the through-hole.
The hot flow path thermal insulation layer gap measuring apparatus can also include dimensional measuring instrument, for measuring the tail of hot flow path
The backway in portion.
The dimensional measuring instrument is preferably vernier caliper.
The beneficial effects of the utility model are:
Heat-insulated lamellar spacing can be surveyed position and measured by the utility model by being transferred to outside hot flow path, be overcome
Heat-insulated lamellar spacing can not go deep into the problem that instrument goes measurement under conventional situation, and operation is simple for measurement.
Increasing component needed for the utility model is only several gaskets, and required measuring instrument uses vernier caliper, step
It is simple and convenient to operate.
Due to realizing the accurate measurement of thermal insulation layer gap width, foundation can be provided for installation, the repair of hot flow path, avoided
Because of open defect at product cast gate caused by thermal insulation layer gap deviation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the gasket；
Fig. 2 is that dependency structure installation relation is shown when being thermally shielded lamellar spacing measurement using one embodiment of the utility model
It is intended to；
Fig. 3 is the A partial enlarged view of Fig. 2.
Detailed description of the invention: 1, model frame；2, fixed die insert；3, hot runner system；4, gasket；5, vernier caliper.
Specific embodiment
As shown in Figure 1, the utility model discloses a kind of hot flow path thermal insulation layer gap measuring apparatus, including gasket 4, it is described
Gasket is the shell structure of uniform thickness.The inner surface of the gasket is can be with the hot-fluid of the tested heat-insulated lamellar spacing of hot flow path of formation
The space curved surface that the head surface in road fits, the outer surface of the gasket are can be tested the heat-insulated interlayer of hot flow path with being formed
The space curved surface that the hole bottom surface in the hot flow path hole of gap fits, i.e., the described gasket, which is placed on the head and mold of hot flow path, to be used for
It can fully fit simultaneously with the two surfaces when installing between the bottom hole in the hot flow path hole of hot flow path.
When the gasket of adequate thickness is put on the head and mold of hot flow path between the bottom hole in hot flow path hole, institute
The position for stating hot flow path opposing mold necessarily changes compared with when not putting gasket, as long as measuring hot flow path opposing mold
Change in location value can extrapolate the size of the heat-insulated lamellar spacing of the hot flow path.
It is preferably able to directly measure the backway of the position of the hot flow path, i.e., the described hot flow path is along hot flow path axis
The changing value in direction calculates that more directly difference of the thickness of gasket at a distance from hot flow path retrogressing is institute in this way
State the size of the heat-insulated lamellar spacing of hot flow path.
The preferably several complete configurations of gasket, and the thickness of each gasket in every set is not mutually equal.Measurement
When, preferably according to head from sequence from thin to thick to hot flow path and the hot flow path hole bottom hole between be gradually put into list one by one
A gasket, after a gasket is put into, the tail portion of the hot flow path then continues to change compared to retrogressing is not generated when not being put into gasket
One gasket stops changing gasket until generating to retreat for the first time, and measures the heat in the case where this last gasket is put into
The distance that the tail portion of runner retreats, difference of the thickness of the gasket at a distance from the retrogressing of the tail portion of the hot flow path are equal to described
The size of the heat-insulated lamellar spacing of hot flow path.
In every set the most thin gasket with a thickness of 0.3mm, the most thick gasket with a thickness of 0.6mm.This implementation
In example, gasket described in every set has 4, and thickness is respectively preferably 0.3mm, 0.4mm, 0.5mm and 0.6mm standard value, this is at sleeve gasket
Quantity and the thickness configuration of piece can be realized with least gasket quantity the hot flow path usually within the scope of 0.3-0.5mm every
The measurement of the enough accuracy in thermosphere gap.
The inner surface of the gasket is preferably spherical surface, to match with the hot runner system of bulb type.The ball
The radius in face is determining according to the radius on the corresponding hot flow path head, such as can be excellent in the present embodiment within the scope of 4-8mm
It is selected as 5.2mm, it is identical as the radius of hot flow path bulb part.
The gasket includes that skirt section can be surrounded by except core described in core 4-2 and encirclement, and the skirt section includes more
A radial stick 4-3 to scatter outside centered on the core, when the sphere diameter of gasket core and hot flow path head or heat
When the sphere diameter of runner hole does not match strictly, the radial stick to scatter can be convenient gasket expansion or shrink, to reduce to the greatest extent
Measured deviation.Certainly, the edge shape of the gasket is unlimited, can also be not provided with the skirt section, such as gasket is in ball on the whole
It is shelly-shaped.
It is further preferably provided with through-hole 4-1 on the gasket and hooks silk (not shown), the hook silk is located at the through-hole
It is interior.The hook silk can be convenient being removed and placed into for the gasket.
The hot flow path thermal insulation layer gap measuring apparatus can also include accurate dimensional measuring instrument, real shown in attached drawing 2
Applying dimensional measuring instrument described in example is vernier caliper 5, certainly can also be using other instruments such as micrometers, as long as precision can
It meets the requirements and is convenient for measuring.
As shown in Figure 2,3, when measurement, model frame 1 is connected and fixed with fixed die insert 2 by fixing screws, and hot flow path hole is worn
It crosses model frame and enters fixed die insert, the bulb part of the hot flow path 3 is matched by the gasket 4 with the hot flow path hole.
Using the change in location value of the vernier caliper 5 measurement relatively described model frame of hot flow path, and thus converse the hot flow path
Thermal insulation layer gap width.
The change in location value of the measurement relatively described model frame of hot flow path preferably measures the hot flow path along hot flow path axis
The changing value in direction, i.e., the backway of the tail portion of hot flow path above-mentioned.For convenience of measurement, usually by the hot flow path hole of model frame
Oral area end face is arranged to the plane vertical with hot flow path axis direction.
The operating process of measurement is as follows:
First the hot flow path 3 is directly loadable into the hot flow path hole in the model frame and fixed die insert, records the heat
Runner and the model frame position, the hot flow path hole of the relatively described model frame in tail portion annular large end face of the usually described hot flow path
The height of oral area end face, and it is recorded as La.
The hot flow path is then taken out, the gasket of i.e. 0.3mm thickness most thin in complete gasket is found out, it can be by the gasket
It is reloaded in the hot flow path hole after overlaying on the head of the hot flow path, the gasket first can also be put into the hot flow path hole
It is interior, then reload the hot flow path, it is packed into the tail portion annular large end face phase that the hot flow path is measured after the hot flow path in a word
To the height of the hot flow path aperture end surface of the model frame, it is recorded as Lb.Notice that its measurement position should be with the measurement position of La
It sets identical.Lb-La is the backway of the tail portion of the hot flow path.
If Lb be greater than La, mean that the tail portion of the hot flow path truly has retrogressing, then can calculate the hot flow path every
Thermosphere gap width is 0.3- (Lb-La)；If Lb is identical as La, means that the tail portion of the hot flow path does not retreat, then take out
With a thickness of the gasket of 0.3mm, then the gasket changed with a thickness of 0.4mm, Lb value is measured again according to identical operation, if at this time
Lb be greater than La, then can calculate the hot flow path thermal insulation layer gap width be 0.4- (Lb-La)；If Lb at this time and La still phase
Together, then continue to replace the bigger gasket progress similar operations of thickness, until Lb is for the first time more than La, it is then thick according to corresponding gasket
It spends H and Lb value and calculates H- (Lb-La), obtain the hot flow path thermal insulation layer gap width.
According to head from sequence from thin to thick to hot flow path and the hot flow path hole bottom hole between be gradually put into one by one
Single gasket is a kind of preferred measuring sequence, in fact, can also be put into using any one in complete gasket as first
Single gasket, if any gasket of thickness again compared to retrogressings is not generated when not being put into gasket, is changed in the tail portion of the hot flow path,
Preferably first change the gasket of the big level-one of thickness (i.e. thickness is greater than the gasket being currently put into and the smallest gasket of thickness)；If produced
Retrogressing is given birth to, the gasket that can change the small level-one of thickness is confirmed, after replacing gasket, if not generating retrogressing, by previous pad
The corresponding value of piece is calculated, if also producing retrogressing, the gasket for continuing to replace again small level-one is confirmed.For generating
Whether the case where retrogressing can also be greater than present back according to the thickness difference of the gasket of currently used gasket and small level-one
The gasket that distance determines whether to change small level-one measures, can be directly according to current correlation when the former is greater than the latter
Numerical value is calculated, and obtains the hot flow path thermal insulation layer gap width.
No matter which kind of above-mentioned measuring sequence, preferred general principle is to guarantee that substituting into the H and Lb of above-mentioned calculating formula when calculating answers
Hot flow path should should make this retrogressing relative to the chip for having back amount when being not loaded into gasket, and being packed into after this is loaded into gasket
Analog value when the smallest gasket of magnitude.It is minimum to retreat magnitude, illustrates that the thickness of gap width and gasket is closest, then measuring
Result opposite use other gaskets more accurate.In fact, appointing in the case where ensuring each gasket precision using in complete gasket
What one gasket that hot flow path can be made to generate back amount after being packed into is ok.
Claims (14)
1. a kind of hot flow path thermal insulation layer gap measuring apparatus, it is characterised in that: including gasket, the gasket is the shell knot of uniform thickness
Structure, the inner surface of the gasket are can to fit with the head surface for the hot flow path for forming the tested heat-insulated lamellar spacing of hot flow path
Space curved surface, the outer surface of the gasket is can be with the bottom hole in the hot flow path hole for forming the tested heat-insulated lamellar spacing of hot flow path
The space curved surface that surface fits.
2. hot flow path thermal insulation layer gap measuring apparatus as described in claim 1, it is characterised in that: the complete configuration of gasket,
Multiple gaskets are often cased with, and the thickness of each gasket is not mutually equal.
3. hot flow path thermal insulation layer gap measuring apparatus as claimed in claim 2, it is characterised in that: the most thin pad in every set
Piece with a thickness of 0.3mm, the most thick gasket with a thickness of 0.6mm.
4. hot flow path thermal insulation layer gap measuring apparatus as claimed in claim 3, it is characterised in that: gasket described in every set has 4,
Thickness is respectively 0.3mm, 0.4mm, 0.5mm and 0.6mm.
5. the hot flow path thermal insulation layer gap measuring apparatus as described in claim 1,2,3 or 4, it is characterised in that: the gasket
Inner surface is spherical surface.
6. hot flow path thermal insulation layer gap measuring apparatus as claimed in claim 5, it is characterised in that: the radius of the spherical surface is in 4-
8mm range.
7. the hot flow path thermal insulation layer gap measuring apparatus as described in claim 1,2,3 or 4, it is characterised in that: the gasket packet
It includes core and surrounds the skirt section of the core, the skirt section includes multiple radial items to scatter outside centered on the core
Block.
8. hot flow path thermal insulation layer gap measuring apparatus as claimed in claim 7, it is characterised in that: the core is equipped with through-hole,
The gasket is additionally provided with hook silk, and the hook silk is located in the through-hole.
9. hot flow path thermal insulation layer gap measuring apparatus as claimed in claim 5, it is characterised in that: the gasket include core and
The skirt section of the core is surrounded, the skirt section includes multiple radial sticks to scatter outside centered on the core.
10. hot flow path thermal insulation layer gap measuring apparatus as claimed in claim 9, it is characterised in that: the core is equipped with through-hole,
The gasket is additionally provided with hook silk, and the hook silk is located in the through-hole.
11. hot flow path thermal insulation layer gap measuring apparatus as claimed in claim 6, it is characterised in that: the gasket includes core
With the skirt section for surrounding the core, the skirt section includes multiple radial sticks to scatter outside centered on the core.
12. hot flow path thermal insulation layer gap measuring apparatus as claimed in claim 11, it is characterised in that: the core is equipped with logical
Hole, the gasket are additionally provided with hook silk, and the hook silk is located in the through-hole.
13. hot flow path thermal insulation layer gap measuring apparatus as claimed in claim 5, it is characterised in that: further include linear measure longimetry work
Tool.
14. hot flow path thermal insulation layer gap measuring apparatus as claimed in claim 13, it is characterised in that: the dimensional measuring instrument
For vernier caliper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822160478.7U CN209246898U (en) | 2018-12-22 | 2018-12-22 | Hot flow path thermal insulation layer gap measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822160478.7U CN209246898U (en) | 2018-12-22 | 2018-12-22 | Hot flow path thermal insulation layer gap measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209246898U true CN209246898U (en) | 2019-08-13 |
Family
ID=67534125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822160478.7U Active CN209246898U (en) | 2018-12-22 | 2018-12-22 | Hot flow path thermal insulation layer gap measuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209246898U (en) |
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2018
- 2018-12-22 CN CN201822160478.7U patent/CN209246898U/en active Active
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