CN203539371U - Sound guide tube and die thereof - Google Patents
Sound guide tube and die thereof Download PDFInfo
- Publication number
- CN203539371U CN203539371U CN201320617586.7U CN201320617586U CN203539371U CN 203539371 U CN203539371 U CN 203539371U CN 201320617586 U CN201320617586 U CN 201320617586U CN 203539371 U CN203539371 U CN 203539371U
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- sound guide
- leading note
- guide tube
- note section
- tee
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Abstract
The utility model discloses a sound guide tube and a die thereof, which are designed to solve the problems of non-uniform wall thickness, complex machining process and the like of the conventional sound guide tube. The sound guide tube comprises a three-way tube sound guide segment and a straight tube sound guide segment, wherein the interface end of the three-way tube sound guide segment is bonded together with the interface port of the straight tube sound guide segment in a hot welding way, and a welding mark is formed on the interface. Meanwhile, the die for making the sound guide tube is disclosed. The sound guide tube disclosed by the utility model has the characteristics of flexibility, low temperature change resistance rate, uniform wall thickness and the like, and is good in sound magnifying effect and auscultation effect. In the sound guide tube, the three-way tube sound guide segment and the straight tube sound guide segment are molded separately and bonded integrally, so that the requirement on the molding die is relatively lower; meanwhile, the product quality is improved, the overall production efficiency is increased, and a better economic benefit is achieved.
Description
Technical field
This utility model belongs to fitting of medical apparatus field, the mould that is specifically related to a kind of sound guide tube and prepares this sound guide tube.
Background technology
As shown in Figure 1, existing stethoscope conventionally adopts one whole sound guide tube, and existing sound conducting tube of stethoscope be PVC soak mould integrated, thereby cause sound guide tube pipe thickness inhomogeneous.
The processing technique of PVC sound guide tube is: first the set of molds of having decomposed is installed, then the mould assembling is heated, mould after heating is immersed in PVC material again, after mould absorption PVC molding, put into baking box hot setting, subsequently the demoulding of curing molding PVC sound guide tube is decomposed, finally the pvc pipe of molding is sheared.Visible, in the manufacturing process of PVC sound guide tube, be that the mould after heating is immersed in the material of PVC, because the temperature at each position of mould is different, cause the thickness of PVC material of mould different parts absorption different.Secondly, the pipe thickness of PVC sound guide tube is relevant with the time length that mould is trapped in PVC material, and the control that workman soaks to mould the time of moulding cannot be accomplished definitely unanimously, if deviation 1s or 2s also can cause the wall thickness of sound guide tube different.Therefore the concordance of pvc pipe is poor, every pipe is all not identical, even if the wall thickness of same pipe is also inhomogeneous, thereby causes the ability of anti-ambient noise inconsistent, thereby has a strong impact on outward appearance and listen sound quality.
In addition, due to the linear variation of pvc pipe temperature influence, the rate of change of pvc pipe temperature influence is 30%-40%, along with temperature reduces very hard that pipe can become.
Moreover, because needs decompose the demoulding, therefore workman's workload is large, production efficiency is very low in PVC sound guide tube production process, within one day, a direct labor can only produce 100-200 bar PVC sound guide tube.
As shown in Figure 2, also having there is Combined type sound conducting tube (application number is CN201120294632.5) in existing stethoscope, comprises tee T leading note section and straight tube leading note section, also comprises three-way connector, and tee T leading note section is connected by three-way connector with straight tube leading note section.
But this Combined type sound conducting tube needs three-way connector, the processing technique of Combined type sound conducting tube has just increased the step that relates to three-way connector: be ready to the three-way connector that both ends are provided with internal thread hole, one end is provided with externally threaded die mandrel, the internal thread hole of three-way connector and the external screw thread of die mandrel are fixed, the three-way connector being fixedly connected with and die mandrel are suspended in the reserved groove of triplet type gel-injection mould, the outside of triplet type gel-injection mould after the other end of three-way connector is placed in and closes, the three-way connector that one end of the latter half of Combined type sound conducting tube is placed on to the first half of Combined type sound conducting tube does not wrap one end of silica gel.
The step that the preparation method of this Combined type sound conducting tube relates to three-way connector is many, this preparation method is made complicated, and the use of three-way connector also causes production cost high.
Also there is diagnostic tube (application number is CN201210080016.9) in existing stethoscope, comprise the tube body of being made by silica gel material, tube body comprises upper end for being connected with receiver and bottom for being connected with stethoscope, and tube body is one-body molded through the thermosetting of injection-molding technique.This integrated diagnostic tube needs to use mould in solid hot one-body molded process when making, if the internal diameter size of the upper end of mould and bottom is made into the same and sebific duct length is long, must cause quality and the result of use of the product produced bad; If the size of the upper end of mould and bottom and inner core is inconsistent, the long cost of mfg. moulding die that will cause of entire length significantly increases and production stability variation simultaneously, yield rate step-down, and economic benefit declines.
Utility model content
An object of the present utility model is that a kind of pipe thickness of proposition is even, anti-noise ability is strong, the simple sound guide tube of processing technique.
Another object of the present utility model is to propose the sound guide tube that a kind of low temperature environment still can normally be used.
Another object of the present utility model is that a kind of sound amplification effect of proposition is good, the sound guide tube that auscultation effect is good.
An also object of the present utility model is to propose the sound guide tube mould that a kind of processing technique is simple, machining accuracy is high.
For reaching this object, on the one hand, this utility model by the following technical solutions:
A sound guide tube, described sound guide tube comprises tee T leading note section and straight tube leading note section,
The interface end of the interface end of described tee T leading note section and described straight tube leading note section is set to one, and forms lapping defect at seam.
Preferably, described lapping defect is welding lapping defect.
Preferably, described tee T leading note section and described straight tube leading note section are made by silica gel, rubber, latex or TPU material.
Preferably, described tee T leading note section and described straight tube leading note section are made from a variety of materials.
Preferably, described tee T leading note section is different from the color of described straight tube leading note section.
Preferably, the internal diameter of described tee T leading note section is greater than the internal diameter of described straight tube leading note section, and described tee T leading note section and described straight tube leading note segment interface place form that inner wall section is stepped, arc is planar or the lapping defect of inclined plane shape.
Preferably, between described tee T leading note section and described straight tube leading note section, by supplementing injection sound guide tube raw material or binding agent, at seam, form outer wall lapping defect in the form of a ring.
On the other hand, this utility model is by the following technical solutions:
For the preparation of a mould for above-mentioned sound guide tube, comprise tee T leading note section die for the preparation of tee T leading note section, for the preparation of the straight tube leading note section die of straight tube leading note section and the integrally forming mould for described tee T leading note section and described straight tube leading note section are bonded together.
Further, described integrally forming mould comprise sound guide tube global formation patrix, sound guide tube global formation counterdie and be suspended in sound guide tube global formation patrix and sound guide tube global formation counterdie between sound guide tube global formation core rod;
On sound guide tube global formation patrix and sound guide tube global formation counterdie, be respectively arranged with forming tank and sound guide tube integrally forming mould compacted under groove on sound guide tube integrally forming mould.
Preferably, the above lapping defect corresponding position of described sound guide tube global formation core rod is provided with the changeover portion that cross section takes the form of inclined plane.
The beneficial effects of the utility model are:
(1) the sound guide tube pipe thickness in this utility model is more even, in use can better resist ambient noise, uses the sound guide tube in this utility model to coordinate stethoscope use can obtain better auscultation effect.
(2) sound guide tube in this utility model solves existing sound guide tube because using PVC material manufacture bearing temperature to affect the problem that rate of change is large, uses the scope of application that is difficult for being damaged wider in the middle of the larger environment of variations in temperature.
(3) internal diameter size of the tee T leading note section in this utility model is greater than the internal diameter size of straight tube leading note section, and sound is imported into the process of triplet type guide wire from straight tube leading note section, and sound amplification effect is better, and auscultation effect is better.
(4) this utility model bonds together interface after tee T leading note section and straight tube leading note section are separated to molding again by hot melting way, to mould require relatively lowly, also improved product quality and integral production efficiency simultaneously, economic benefit is better.
(5) tee T leading note section and straight tube leading note section when bonding, supplemented to injection sound guide tube raw material to seam and formed annular lapping defect, making bonding more firmly, sound guide tube is used more reliable, effectively extends the service life of sound guide tube.
Accompanying drawing explanation
Fig. 1 is the one-body molded sound guide tube schematic diagram of existing PVC;
Fig. 2 is existing Combined type sound conducting tube structural representation;
Fig. 3 is this utility model embodiment mono-sound guide tube structural representation;
Fig. 4 is the partial enlarged view of Fig. 3;
Fig. 5 is this utility model embodiment mono-straight tube leading note section die structural representation;
Fig. 6 is this utility model embodiment mono-straight tube leading note section counterdie, mold insert structure top view;
Fig. 7 is this utility model embodiment mono-tee T leading note section counterdie, mold insert structure top view;
Fig. 8 is this utility model embodiment mono-sound guide tube global formation counterdie, mold insert structure top view;
Fig. 9 is this utility model embodiment bis-sound guide tube structural representations;
Figure 10 is the partial enlarged drawing of Fig. 9;
Figure 11 is this utility model embodiment bis-sound guide tube global formation counterdies, mold insert structure top view;
Figure 12 is the partial enlarged drawing of Figure 11.
In figure:
1, tee T leading note section; 2, straight tube leading note section; 3, lapping defect; 4, straight tube leading note section patrix; 41, straight tube leading note section upper mold core groove; 5, straight tube leading note section counterdie; 51 straight tube leading note section lower mold core grooves, 6, straight tube leading note section core rod; 7, tee T leading note section counterdie; 71, tee T leading note section lower mold core groove; 8, tee T leading note section core rod; 9, global formation counterdie; 91, integrally forming mould compacted under groove; 92, lapping defect groove; 10, global formation core rod.
The specific embodiment
Below in conjunction with accompanying drawing the mode by specific embodiment, this utility model is described in more details.
Embodiment mono-:
As shown in Figure 3 and Figure 4, be a kind of sound guide tube that the present embodiment provides, comprise tee T leading note section 1 and straight tube leading note section 2, the interface end of the interface end of described tee T leading note section 1 and described straight tube leading note section 2 bonds together by hot melting way.The internal diameter of tee T leading note section 1 is greater than the internal diameter of straight tube leading note section 2, and tee T leading note section 1 forms with the seam of straight tube leading note section 2 lapping defect 3 that inner wall section takes the form of inclined plane.Tee T leading note section 1 and straight tube leading note section 2 are made by silica gel.
Wherein, the internal diameter size scope of tee T leading note section is 3mm-6.5mm, and length range is 120mm-320mm, and pipe thickness scope is 0.7mm-3.5mm; The internal diameter size scope of straight tube leading note section is 2.5mm-7mm, and length range is 250mm-500mm, and pipe thickness scope is 0.7mm-3.5mm.Can determine according to the actual requirements.
The present embodiment also proposes a kind of mould of preparing above-mentioned sound guide tube, and this mould comprises tee T leading note section die for the preparation of tee T leading note section 1, for the preparation of the straight tube leading note section die of straight tube leading note section 2 and the integrally forming mould for described tee T leading note section 1 and described straight tube leading note section 2 are bonded together.
The structure of tee T leading note section die as shown in Figure 7, comprises tee T leading note section patrix (not shown), tee T leading note section counterdie 7 and tee T leading note section core rod 8, is provided with tee T leading note section upper mold core groove on tee T leading note section patrix; On tee T leading note section counterdie 7, be provided with tee T leading note section lower mold core groove 71.
The structure of straight tube leading note section die as illustrated in Figures 5 and 6, comprise straight tube leading note section patrix 4, straight tube leading note section counterdie 5 and be suspended in straight tube leading note section patrix 4 and straight tube leading note section counterdie 5 between straight barrel type core rod 6; On straight tube leading note section patrix 4 and straight tube leading note section counterdie 5, be respectively arranged with the straight tube leading note section upper mold core groove 41 and the straight tube leading note section lower mold core groove 51 that match with straight barrel type core rod 6.
The structure of sound guide tube integrally forming mould as shown in Figure 8, comprise sound guide tube global formation patrix (not shown), sound guide tube global formation counterdie 9 and be suspended in sound guide tube global formation patrix and sound guide tube global formation counterdie 9 between sound guide tube global formation core rod 10; On sound guide tube global formation patrix and sound guide tube global formation counterdie 9, be respectively arranged with forming tank and sound guide tube integrally forming mould compacted under groove 91 on sound guide tube integrally forming mould.On sound guide tube global formation core rod 10, lapping defect 3 corresponding positions are provided with the changeover portion that cross section takes the form of inclined plane.
The sound guide tube of producing in the present embodiment comprises the steps:
Steps A, by mold injects, prepare respectively tee T leading note section and straight tube leading note section; The preparation method of tee T leading note section is specially, and silica gel material is expelled in tee T leading note section die and carries out hot-formingly, and hot pressing time is 200 seconds, and hot pressing temperature is 165 ℃, and hot pressing locked mode pressure is 150 tons; The preparation method of straight tube leading note section is specially, and silica gel material is expelled in straight tube leading note section die and carries out hot-formingly, and hot pressing time is 250 seconds, and hot pressing temperature is 170 ℃, and hot pressing locked mode pressure is 170 tons.
Step B, the interface of the described tee T leading note section preparing in steps A and described straight tube leading note section is bonded together by hot melting way, obtains semi-finished product sound guide tube; Specifically comprise:
Step B1, the interface end of tee T leading note section is docked with the interface end of straight tube leading note section, and be placed in integrally forming mould;
Step B2, to the sulfuration of heating of the interface end of the interface end of described tee T leading note section and described straight tube leading note section, it is adhesively fixed, and forms lapping defect at seam, wherein, hot pressing time is 200 seconds-300 seconds, and hot pressing temperature is 165 ℃-185 ℃, and hot pressing locked mode pressure is 150 tons-200 tons;
After step B3, hot pressing complete, die sinking can obtain semi-finished product sound guide tube.
Step C, the semi-finished product sound guide tube in described step B is put into oven for baking 3-5 hour, baking temperature is 200 ℃; After baking finishes, sound guide tube is carried out to shot blasting on surface or blasting treatment; Outer surface to the sound guide tube through shot-peening or blasting treatment carries out oil spout processing again.
Complete sound guide tube is carried out to shot blasting on surface or blasting treatment can make the surfacing of seam smooth, and feel is fine and smooth; Oil spout processing can also be carried out in sound guide tube surface through shot-peening or sandblast, and oil spout is processed and can be made the viscosity on sound guide tube surface lower, not sticky ash, and antistatic, the sophistication that is smooth to the touch strengthens again, and during use, user's experience sense is better.
The internal diameter size of the tee T leading note section part of the sound guide tube in this utility model is larger than the internal diameter size of straight tube leading note section part, and this makes sound import into the process of triplet type guide wire from straight tube leading note section, and sound amplification effect is better, and auscultation effect is better.After tee T leading note section part and straight tube leading note section are partly separated to molding, by hot melting way, bond together again, to mould require relatively low, good stability during production, yield rate is high, economic benefit is better.
Hot-forming condition in mould is not limited to the condition of molding described in the present embodiment, and hot pressing time scope is 200 seconds-300 seconds, and hot pressing temperature scope is 165 ℃-185 ℃, and hot pressing locked mode pressure limit is 150 tons-200 tons, can determine according to the actual requirements.The raw material of sound guide tube is also not limited to silica gel material, can also adopt rubber, latex or TPU material elastomeric material to make, and tee T leading note section can be identical with the material of straight tube leading note section, also can be different, as long as bi-material has the compatibility.The color of tee T leading note section and straight tube leading note section also can be different.The transition section of sound guide tube global formation core rod is not limited to inclined plane shape, can also be other shapes such as stepped or circular-arc, and the lapping defect inner wall section shape of corresponding formation is consistent with transition section shape.
Embodiment bis-:
Sound guide tube structure and embodiment mono-in the present embodiment are basic identical, as shown in Figure 9 and Figure 10, comprise tee T leading note section 1 and straight tube leading note section 2, the interface end of the interface end of described tee T leading note section 1 and described straight tube leading note section 2 bonds together by hot melting way.The internal diameter of tee T leading note section 1 is greater than the internal diameter of straight tube leading note section 2, and tee T leading note section 1 forms with the seam of straight tube leading note section 2 lapping defect 3 that inner wall section takes the form of inclined plane.Difference is, in the present embodiment, sound guide tube is because the seam in tee T leading note section 1 and straight tube leading note section 2 supplements injection sound guide tube raw material or binding agent, and therefore, lapping defect 3 outer walls that form at seam in the form of a ring.
Prepare the mould structure that the mould of above-mentioned sound guide tube and embodiment mono-propose basic identical, comprise tee T leading note section die for the preparation of tee T leading note section 1, for the preparation of the straight tube leading note section die of straight tube leading note section 2 and the integrally forming mould for described tee T leading note section 1 and described straight tube leading note section 2 are bonded together.As shown in figure 11, difference is, forming tank one side of integrally forming mould and described tee T leading note section 1 seam shape are suitable, opposite side and described straight tube leading note section 2 seam shapes are suitable, the middle part of described forming tank is also provided with lapping defect groove 92, by the interior supplementary injection sound guide tube raw material of described lapping defect groove 92 or binding agent to form outer wall lapping defect 3 in the form of a ring.
Accordingly, the preparation method of this enforcement sound guide tube is with respect to the difference of embodiment mono-, in step B2, mould is heated to pressurization and make the interface end of described tee T leading note section and the fusing of the interface end of described straight tube leading note section, seam to described tee T leading note section and described straight tube leading note section supplements injection silica gel material or binding agent, silica gel material or binding agent are filled lapping defect groove, the interface end of two sections is bonded together, wherein, hot pressing time is 200 seconds, hot pressing temperature is 165 ℃, and hot pressing locked mode pressure is 200 tons.By supplementing the operation of injection silica gel material or binding agent, tee T leading note section and straight tube leading note section are more firmly bonded together, sound guide tube are used more reliable, effectively extend the service life of sound guide tube.
Above-described is only principle of the present utility model and preferred embodiment.It should be pointed out that to those skilled in the art, not departing under the prerequisite of this utility model principle, can also make some distortion and improvement, also should be considered as belonging to protection domain of the present utility model.
Claims (9)
1. a sound guide tube, is characterized in that:
Described sound guide tube comprises tee T leading note section (1) and straight tube leading note section (2),
The interface end of the interface end of described tee T leading note section (1) and described straight tube leading note section (2) is set to one, and forms lapping defect (3) at seam.
2. a kind of sound guide tube according to claim 1, is characterized in that: described tee T leading note section (1) and described straight tube leading note section (2) are made by silica gel, rubber, latex or TPU material.
3. a kind of sound guide tube according to claim 2, is characterized in that: described tee T leading note section (1) is made from a variety of materials respectively with described straight tube leading note section (2).
4. a kind of sound guide tube according to claim 1, it is characterized in that: the internal diameter of described tee T leading note section (1) is greater than the internal diameter of described straight tube leading note section (2), described tee T leading note section (1) is stepped with described straight tube leading note section (2) seam formation inner wall section, arc is planar or the lapping defect of inclined plane shape (3).
5. a kind of sound guide tube according to claim 1, is characterized in that: between described tee T leading note section (1) and described straight tube leading note section (2), by supplementing injection sound guide tube raw material or binding agent, at seam, form outer wall lapping defect (3) in the form of a ring.
6. any one sound guide tube according to claim 1, is characterized in that: described lapping defect (3) is welding lapping defect.
7. for the preparation of a mould for sound guide tube as described in claim 1-6 any one, it is characterized in that: comprise tee T leading note section die for the preparation of tee T leading note section, for the preparation of the straight tube leading note section die of straight tube leading note section and the integrally forming mould for described tee T leading note section and described straight tube leading note section are bonded together.
8. the mould of a kind of sound guide tube according to claim 7, is characterized in that: described integrally forming mould comprise sound guide tube global formation patrix, sound guide tube global formation counterdie (9) and be suspended in sound guide tube global formation patrix and sound guide tube global formation counterdie (9) between sound guide tube global formation core rod (10);
On sound guide tube global formation patrix and sound guide tube global formation counterdie (9), be respectively arranged with forming tank and sound guide tube integrally forming mould compacted under groove (91) on sound guide tube integrally forming mould.
9. the mould of a kind of sound guide tube according to claim 8, is characterized in that: the above lapping defect of described sound guide tube global formation core rod (10) (3) corresponding position is provided with the changeover portion that cross section takes the form of inclined plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617586.7U CN203539371U (en) | 2013-09-30 | 2013-09-30 | Sound guide tube and die thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320617586.7U CN203539371U (en) | 2013-09-30 | 2013-09-30 | Sound guide tube and die thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203539371U true CN203539371U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320617586.7U Expired - Lifetime CN203539371U (en) | 2013-09-30 | 2013-09-30 | Sound guide tube and die thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203539371U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103479384A (en) * | 2013-09-30 | 2014-01-01 | 无锡市凯顺医疗器械制造有限公司 | Leading tone tube, manufacturing method for leading tone tube and mould |
-
2013
- 2013-09-30 CN CN201320617586.7U patent/CN203539371U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103479384A (en) * | 2013-09-30 | 2014-01-01 | 无锡市凯顺医疗器械制造有限公司 | Leading tone tube, manufacturing method for leading tone tube and mould |
| WO2015043156A1 (en) * | 2013-09-30 | 2015-04-02 | 无锡市凯顺医疗器械制造有限公司 | Sound conducting tube, and method and mold for manufacturing same |
| CN103479384B (en) * | 2013-09-30 | 2015-11-18 | 无锡市凯顺医疗器械制造有限公司 | A kind of sound guide tube, sound guide tube preparation method and mould |
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| GR01 | Patent grant | ||
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Granted publication date: 20140416 |