CN212779130U - Immersion type 3D measuring device - Google Patents
Immersion type 3D measuring device Download PDFInfo
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- CN212779130U CN212779130U CN202022261328.2U CN202022261328U CN212779130U CN 212779130 U CN212779130 U CN 212779130U CN 202022261328 U CN202022261328 U CN 202022261328U CN 212779130 U CN212779130 U CN 212779130U
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Abstract
The utility model discloses an immersion type 3D measuring device, include: a support; the force measuring container is arranged below the bracket and filled with liquid; the force measuring device is arranged at the bottom of the force measuring container and is used for measuring the weight of the force measuring container; the object to be detected is arranged on the bracket through the moving component; the moving assembly comprises a first moving assembly for driving the object to be measured to vertically move relative to the force measuring container, a second moving assembly rotating in a vertical plane, and a third moving assembly rotating relative to the second moving assembly; the first moving assembly is arranged on the bracket, the second moving assembly is arranged on the first moving assembly, the third moving assembly is arranged on the second moving assembly, and the object to be detected is arranged on the third moving assembly; the moving assembly drives the object to be measured to be immersed into the liquid in the force measuring container in multiple directions, and the force measuring device measures the weight of the force measuring container.
Description
Technical Field
The utility model relates to a 3D measures technical field, especially relates to an immersion type 3D measuring device.
Background
The existing 3D measurement technology mainly uses laser, optics, etc. to scan and obtain the surface morphology of an object. However, the 3D measurement method of optical scanning has the following problems: when a hollow cavity or a gap exists inside the object to be measured, the optical measurement method such as laser cannot be used, and the finally obtained 3D model data is incomplete.
In order to solve the problems, the prior art adopts the following scheme:
for example, after taking a model of the dental silicone rubber, an impression of the tooth is obtained, the impression needs to be obtained by pouring plaster to obtain a male model, and then the 3D scanning is carried out on the plaster male model to obtain the shape of the tooth. However, the scheme is complicated in operation and large in accumulated error. For example, the liquid level height is directly measured by the existing immersion type 3D measuring method, the precision of the measuring scheme is poor, and the measuring structure is inaccurate.
Disclosure of Invention
The utility model provides a technical problem overcome the defect that prior art exists, provide an immersion type 3D measuring device, provide the precision of measuring the determinand greatly, reduced the measuring device cost, the structure is more simple.
The technical scheme of the utility model is that:
an immersion 3D measurement device comprising:
a support; the force measuring container is arranged below the bracket, and liquid for measurement is filled in the force measuring container; the force measuring device is arranged at the bottom of the force measuring container and is used for measuring the weight change of the liquid in the force measuring container; the moving assembly is arranged on the bracket and used for bearing an object to be measured; the moving assembly can drive the object to be measured to be immersed into liquid in the force measuring container in a preset direction according to a preset immersion scheme, and the weight change of the liquid in the force measuring container is measured through the force measuring device; wherein the object to be measured is a dentognathic impression.
The moving assembly comprises a first moving assembly, a second moving assembly and a third moving assembly, the first moving assembly is mounted on the first moving assembly, the third moving assembly is mounted on the second moving assembly, the object to be measured is mounted on the third moving assembly, the first moving assembly is used for driving the second moving assembly, the third moving assembly and the object to be measured to move in the depth direction relative to the force measuring container, the second moving assembly is used for driving the third moving assembly and the object to be measured to rotate in a plane parallel to the depth direction of the force measuring container, the third moving assembly is used for driving the object to be measured to rotate relative to the second moving assembly, and the rotating surface of the third moving assembly is perpendicular to the rotating surface of the second moving assembly.
In some embodiments, the first moving assembly comprises:
the sliding rail is arranged on the bracket and is arranged in the depth direction relative to the force measuring container;
the sliding block is movably arranged on the sliding rail;
the first power device comprises a first motor and a screw rod, the first motor is installed on the sliding rail or the support, the connecting end of the first motor is connected with the screw rod, the screw rod is arranged along the sliding rail, the sliding block is sleeved on the screw rod and is in threaded connection, the first motor drives the screw rod to rotate, and the screw rod rotates to drive the sliding block to move along the sliding rail.
In some embodiments, the second moving assembly comprises:
a worm mounted to the slider;
the worm gear structure is meshed and connected with the worm, and the radial direction of the worm gear structure is parallel to the depth direction of the force measuring container;
the second power device is used for driving the worm to rotate, the worm rotates to drive the worm gear structure to rotate, and the worm gear structure drives the third moving assembly and the object to be detected to rotate; and a second motor in the second power device is connected with the worm to drive the worm to rotate.
In some embodiments, the second moving assembly comprises a worm and gear box, the worm and gear box is mounted on the sliding block, the worm is arranged in the worm and gear box, the worm gear structure is movably mounted at the bottom of the worm and gear box, and the worm is meshed with the worm gear structure from an opening at the bottom of the worm and gear box;
the worm wheel structure is of a circular arc structure, and a tooth part meshed with the worm is arranged on the outer ring surface of the worm wheel structure facing the worm.
In some embodiments, the worm wheel structure is movably connected with the bottom of the worm gear box through a limiting structure, and the limiting structure comprises:
the limiting edges are arranged on the two sides of the tooth part on the outer ring surface of the worm gear structure, and the two limiting edges are inclined towards one side of the tooth part to form a sliding groove structure;
the limiting block is arranged on an opening at the bottom of the worm gear box, the two side faces of the limiting block are inclined, matched with the limiting edge, and the limiting block is arranged in the chute structure and can move relatively.
In some embodiments, the third moving assembly comprises:
the rotating shaft is vertically arranged on one side, facing the object to be tested, of the worm gear structure, and the object to be tested is arranged on the rotating shaft;
the third power device is used for driving the rotating shaft to rotate, and the rotating shaft rotates to drive the object to be tested to rotate relative to the worm gear structure; the third power device adopts a third motor, the third motor is arranged on the inner ring surface of the worm gear structure, and the connecting end of the third motor is connected with the rotating shaft and drives the rotating shaft to rotate.
In some embodiments, a clamp is mounted on the rotating shaft, and the clamp clamps the object to be measured; the object to be measured extends to form a clamping part, and the clamping part is connected with the clamp.
In some embodiments, the load cell is positioned on a base, and the load cell employs a high-precision load cell positioned between the bottom of the load cell and the base.
In some embodiments, the force measuring container is provided with a communicating portion, when the moving assembly drives the object to be measured to be immersed into the liquid in the force measuring container in a predetermined orientation according to a predetermined immersion scheme, the liquid is discharged through the communicating portion arranged on the force measuring container, and the force measuring device measures the change of the weight of the liquid in the force measuring container.
The utility model provides an immersion type 3D measuring device makes it compare with prior art and has following advantage and positive effect:
the utility model provides an immersion type 3D measuring device utilizes the characteristic that liquid can flow into the hole, the clearance of determinand inside, adopts the weight of measuring the row of boiling water to be convenient for obtain the interior form of determinand, compared with the optical scanning mode, improved measurement accuracy by a wide margin, the structure is simpler, has reduced equipment cost; further, the utility model discloses a first removal subassembly, second remove the cooperation motion between subassembly and the third removal subassembly and realized that the determinand is diversified entering into liquid many times, the angle is less, and the angle of test is more, and the precision is higher to great improvement measurement accuracy.
Drawings
Fig. 1 is a schematic perspective view of an immersion type 3D measuring device provided by the present invention;
fig. 2 is a partial schematic view of an immersion type 3D measuring device provided by the present invention;
FIG. 3 is a schematic view of the vertical in-plane rotation of the object to be measured according to the present invention;
fig. 4 is a schematic view illustrating the rotation of the dut with respect to the second moving assembly according to the present invention;
FIG. 5 is the utility model provides a vertical sketch map of immersion type 3D measuring device
Fig. 6 is a schematic view of the liquid discharge measured by the force measuring container according to the present invention.
Detailed Description
In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
What this application will solve is that present laser scanning can't scan the inside hole of object, the condition in clearance, and liquid can flow in inside hole of object and clearance naturally to can measure inside form. For example, the application is applied to the orthodontic field of teeth, in the process of producing the invisible appliance, firstly, a female die (impression) of the teeth is obtained after a silicone rubber mold is taken, the female die needs to be filled with gypsum to obtain a male die, then, the 3D scanning is carried out on the gypsum male die to obtain the shape of the teeth, the time consumption of the operation is long, the process is quite complex, the labor cost is high, and therefore the production efficiency is low. The specific embodiment mode is as follows:
example 1
Referring to fig. 1-2, the present embodiment provides an immersion type 3D measuring device, which includes a bracket, a force measuring container 2, a force measuring device 3, and a moving assembly; the force measuring container 2 is arranged below the bracket, and liquid is filled in the force measuring container 2; the force measuring device 3 is arranged at the bottom of the force measuring container 2 and is used for measuring the weight change of the liquid in the force measuring container 2; the moving assembly is arranged on the bracket and used for bearing an object to be measured; the moving assembly can drive the object to be measured to be immersed into the liquid in the force measuring container in a preset direction according to a preset immersion scheme, and the weight change of the liquid in the force measuring container is measured through the force measuring device; wherein the object to be measured is a dentognathic impression. The moving assembly comprises a first moving assembly, a second moving assembly arranged on the first moving assembly and a third moving assembly arranged on the second moving assembly, and the object to be detected 5 is arranged on the third moving assembly; the first moving assembly drives the second moving assembly, the third moving assembly and the object to be measured 5 to move in the depth direction relative to the force measuring container 2, the second moving assembly drives the third moving assembly and the object to be measured 5 to rotate in a plane parallel to the depth direction of the force measuring container, the third moving assembly drives the object to be measured 5 to rotate relative to the second moving assembly, and the rotating surface of the third moving assembly is perpendicular to the rotating surface of the second moving assembly.
Referring to fig. 6, during measurement, liquid is filled in the force measuring container 2, the second moving assembly and the third moving assembly drive the object to be measured to rotate in two directions, the object to be measured is driven by the first moving assembly to vertically move and gradually extend into the liquid in the force measuring container 2 every time the second moving assembly and the third moving assembly rotate for an angle, the liquid is discharged through the communicating part 22 (the discharged liquid is received through other containers 21), so that the weight of the force-measuring container 2 is reduced, and the force-measuring device measures the weight change in real time in the process, a curve is thus obtained for the weight reduction of the load cell 2, this reduced weight, i.e. the weight of the volume of liquid displaced, the density of the liquid is known, so that the volume of the object to be measured immersed in the liquid is obtained, and the finally obtained curve is the curve of the object to be measured with the volume gradually increasing under two different angle values; the method comprises the steps of converting curves of different angles into a sinogram, wherein the sinogram is radon transformation of a 3-dimensional Shape of an object, and then carrying out inverse radon transformation on the sinogram to obtain a three-dimensional gray value image of the tested object.
The utility model provides an immersion type 3D measuring device utilizes the characteristic that liquid can flow into the hole, the clearance of determinand inside, adopts the weight of measuring the row of boiling water to be convenient for obtain the interior form of determinand, relative to the optical scanning mode, measurement accuracy, the structure is simpler, has reduced equipment cost; further, the utility model discloses having increased substantially and having realized the diversified multi-angle of determinand through the cooperation motion between first removal subassembly, second removal subassembly and the third removal subassembly, in the small displacement entered into liquid, can effectively reduce the container volume, alleviateed container liquid weight to reduce the range and improve force cell sensor's absolute accuracy.
In this embodiment, the stand comprises legs 16 which are placed on both sides of the load cell 2, a support plate 12 which connects the two legs 16 and spans over the load cell 2, on which support plate the displacement assembly is mounted.
Further, the lower end of the leg 16 is provided with a support 4 for enhancing its stability.
Furthermore, the two sides of the supporting plate 12 are connected with the two legs 16 in a height-adjustable manner, so that the overall height of the object to be measured and the moving assembly can be adjusted conveniently; specifically, through being equipped with the sand grip of vertical extension on the back of backup pad 12, be provided with the spout of the vertical extension of matching on supporting 16, the sand grip is arranged in the spout and can be followed the spout and reciprocated, after backup pad 12 removed to target location department, the rethread screw realized fixing.
In the present embodiment, the first moving assembly includes a slide rail 18, a slider 15 and a first power device; the slide rail 18 is mounted on the support plate 12 and extends in the depth direction relative to the force measuring container 2; the slide block 15 is movably arranged on the slide rail 18; the first power device is used for driving the sliding block 15 to move relative to the sliding rail 18, and the sliding block 15 moves relative to the sliding rail 18 to drive the object 5 to be measured to move partially or completely along the depth direction of the force measuring container 2 to be immersed into the force measuring container 2.
Further, the first power device comprises a first motor 14 and a screw 13, the first motor 14 is mounted on the upper end of the slide rail 18 or the support plate 12, the connecting end of the first motor 14 is connected with the screw 13, the screw 13 is vertically arranged along the slide rail 18, the sliders 15 are sleeved on the screw 13 and are connected with the screw 13 in a threaded manner, the first motor 14 drives the screw 13 to rotate, and the screw 13 rotates to drive the sliders 15 to move along the slide rail 18, as shown in fig. 5.
In the present embodiment, the second moving assembly comprises a worm, a worm gear structure 8 and a second power device; the worm is arranged on the slide block 15; the worm wheel structure is meshed with the worm, and the radial direction of the worm wheel structure is arranged along the vertical plane; the second power device is connected with the worm and used for driving the worm to rotate, the worm rotates to drive the worm gear structure to rotate, and the worm gear structure drives the object to be measured to rotate on the vertical plane, as shown in fig. 3.
The first moving assembly comprises a worm and gear box 9, the worm and gear box 9 is fixed on the sliding block 15 through a connecting frame, the worm is arranged in the worm and gear box 9, the worm gear structure 8 is movably mounted at the bottom of the worm and gear box 9, and the worm is meshed with the worm gear structure 8 from an opening at the bottom of the worm and gear box.
As shown in fig. 2, the worm wheel structure 8 is a circular arc structure, and a tooth portion engaged with the worm is provided on an outer ring surface facing the worm.
Wherein, through limit structure swing joint between worm wheel structure 8 and the worm gear case 9 bottom, limit structure is including setting up spacing limit 801 and the stopper 901 of setting on the worm gear case 9 bottom opening of tooth portion both sides on the 8 outer lane faces of worm wheel structure, two limit 801 all set up to tooth portion lopsidedness and constitute the spout structure, stopper 901 both sides are the slope form that matches with spacing limit, stopper 901 installs in the spout structure and can relative movement, in the 8 rotatory while of worm wheel structure, realize vertical spacing between the two.
The second power device adopts a second motor 10, and the second motor 10 is installed on the outer side wall of the worm gear box 9 and connected with the worm to drive the worm to rotate.
The second moving assembly provided by the embodiment adopts a worm and gear structure to suspend the rotating center away from the rotating center of the first motor, so that the rotating center can be positioned on the object to be measured, and the measured object can not perform excessive parallel movement during rotation, and the scheme does not need to add a group of mechanical arms to control the action; and above-mentioned scheme can effectively reduce the area size of immersion fluid bucket, reduces the total quality of immersion fluid, improves measurement accuracy.
In this embodiment, the third displacement assembly includes a rotating shaft and a third power device, the rotating shaft is vertically installed on one side of the worm gear structure facing the object to be tested, and the object to be tested is installed on the rotating shaft; the third power device drives the rotating shaft to rotate, and the rotating shaft rotates to drive the object to be measured to rotate relative to the worm gear structure 8, as shown in fig. 4.
The third power device adopts a third motor 7, the third motor 7 is arranged on the inner ring surface of the worm gear structure 8 through a frame structure 17, and the axial direction of an output shaft of the third motor 7 is ensured to be vertical to the worm gear structure 8; the connecting end of the third motor 7 is connected with the rotating shaft and drives the rotating shaft to rotate. The third motor 7 may be a stepper motor.
In this embodiment, a clamp 6 is installed on the rotating shaft, and the object 5 is clamped by the clamp 6.
Further, a clamping portion 501 extends from the object to be measured 5, and the clamping portion 501 is connected with the clamp; the setting of clamping part 501 is passed through to this embodiment, when guaranteeing that the determinand enters into liquid completely, avoids anchor clamps to stretch into the liquid internally.
Further, the clamp 6 comprises a connecting plate, one end of the connecting plate is connected with the rotating shaft, and the other end of the connecting plate is fixedly connected with the clamping part through a screw. Of course, the specific structure of the clamp in other embodiments can be adjusted according to the specific requirements, and is not limited to the above.
In this embodiment, the force measuring container 2 is placed on a base 1, and the force measuring device 3 is a high-precision force sensor which is placed between the bottom of the force measuring container 2 and the base 1. The force measuring container is provided with a communicating part 22, when the moving assembly drives the object to be measured to be immersed into the liquid in the force measuring container 2 in a preset direction according to a preset immersion scheme, the liquid is discharged through the communicating part 22 arranged on the force measuring container 2, and the force measuring device 3 measures the change of the weight of the liquid in the force measuring container 2. The communication part 22 is not limited to the structure limited by the present application, and may be shown in various forms as long as it facilitates liquid discharge.
The embodiment is applicable to any object to be measured, is not limited here, and can be adjusted according to specific conditions.
Example 2
This example is a further adjustment made on the basis of example 1.
In this embodiment, the object 5 is a dental impression, and when measuring the dental impression, the dental impression is mounted on the fixture of the third moving assembly, and is immersed in the liquid in the force measuring container 2 in multiple directions through the moving assembly. Because the dental impression is provided with a plurality of tooth shapes, the tooth shapes form grooves consistent with the tooth shapes, and the dental impression is deeply inserted into liquid at different angles and different depths, the liquid is discharged in different volumes, so the weights are different; thereby according to the liquid level degree of depth of surveying, weight, density, and the angle is different and draws the east transform to calculate the tooth jaw model data information that corresponds with the tooth jaw die according to the relevance, and directly carry out the printing of tooth jaw model, need not to pour the gypsum in the die and obtain the gypsum formpiston in this application, thereby the process has been practiced thrift, when practicing thrift the process, because liquid can advance to stay in the middle of each space, cause the tooth jaw model of printing out and actual patient's tooth jaw model more to press close to, it is more accurate, provide work efficiency for the production of follow-up correction ware, and the patient corrects the effect and further obtains improving.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (10)
1. An immersion type 3D measuring device, comprising:
a support;
the force measuring container is arranged below the bracket, and liquid for measurement is filled in the force measuring container;
the force measuring device is arranged at the bottom of the force measuring container and is used for measuring the weight change of the liquid in the force measuring container;
the moving assembly is arranged on the bracket and used for bearing an object to be measured; the moving assembly can drive the object to be measured to be immersed into liquid in the force measuring container in a preset direction according to a preset immersion scheme, and the weight change of the liquid in the force measuring container is measured through the force measuring device; wherein the object to be measured is a dentognathic impression.
2. An immersion 3D measuring device according to claim 1 wherein the moving assembly comprises a first moving assembly mounted to the frame, a second moving assembly mounted to the first moving assembly, and a third moving assembly mounted to the second moving assembly, wherein the object to be measured is mounted to the third moving assembly, and the first moving assembly drives the second moving assembly, the third moving assembly, and the object to be measured to move in a depth direction relative to the force measuring container; the second moving assembly drives the third moving assembly and the object to be measured to rotate in a plane parallel to the depth direction of the force measuring container, the third moving assembly drives the object to be measured to rotate relative to the second moving assembly, and the rotating surface of the third moving assembly is perpendicular to the rotating surface of the second moving assembly.
3. An immersion 3D measurement device in accordance with claim 2 wherein the first movement assembly comprises:
the sliding rail is arranged on the bracket and is arranged in the depth direction relative to the force measuring container;
the sliding block is movably arranged on the sliding rail;
the first power device comprises a first motor and a screw rod, the first motor is installed on the sliding rail or the support, the connecting end of the first motor is connected with the screw rod, the screw rod is arranged along the sliding rail, the sliding block is sleeved on the screw rod and is in threaded connection, the first motor drives the screw rod to rotate, and the screw rod rotates to drive the sliding block to move along the sliding rail.
4. An immersion 3D measurement device in accordance with claim 3 wherein the second movement assembly comprises:
a worm mounted to the slider;
the worm gear structure is meshed and connected with the worm, and the radial direction of the worm gear structure is parallel to the depth direction of the force measuring container;
the second power device is used for driving the worm to rotate, the worm rotates to drive the worm gear structure to rotate, and the worm gear structure further drives the third moving assembly and the object to be detected to rotate; and a second motor in the second power device is connected with the worm to drive the worm to rotate.
5. An immersion 3D measuring device according to claim 4 wherein the second moving assembly includes a worm and gear box mounted on the slide block, the worm is disposed in the worm and gear box, the worm gear structure is movably mounted on the bottom of the worm and gear box, and the worm is engaged with the worm gear structure from an opening at the bottom of the worm and gear box;
the worm wheel structure is of a circular arc structure, and a tooth part meshed with the worm is arranged on the outer ring surface of the worm wheel structure facing the worm.
6. A liquid immersion type 3D measuring device according to claim 5, wherein the worm gear structure is movably connected with the bottom of the worm gear box through a limiting structure;
the limit structure comprises: the limiting edges are arranged on the two sides of the tooth part on the outer ring surface of the worm gear structure, and the two limiting edges are inclined towards one side of the tooth part to form a sliding groove structure; the limiting block is arranged on an opening at the bottom of the worm gear box, the two side faces of the limiting block are inclined, matched with the limiting edge, and the limiting block is arranged in the chute structure and can move relatively.
7. An immersion 3D measurement device in accordance with claim 4 wherein the third movement assembly comprises: the rotating shaft is vertically arranged on one side, facing the object to be tested, of the worm gear structure, and the object to be tested is arranged on the rotating shaft;
the third power device is used for driving the rotating shaft to rotate, and the rotating shaft rotates to drive the object to be tested to rotate relative to the worm gear structure; the third power device adopts a third motor, the third motor is arranged on the inner ring surface of the worm gear structure, and the connecting end of the third motor is connected with the rotating shaft and drives the rotating shaft to rotate.
8. An immersion type 3D measuring device according to claim 7, wherein a clamp is arranged on the rotating shaft, and the clamp clamps the object to be measured; the object to be measured extends to form a clamping part, and the clamping part is connected with the clamp.
9. An immersion 3D measurement device in accordance with claim 1 wherein the load cell is placed on a base, the load cell is a high precision load cell, and the high precision load cell is placed between the load cell bottom and the base.
10. The immersion type 3D measuring device according to claim 1, wherein the force measuring container is provided with a communicating part, when the moving assembly drives the object to be measured to be immersed into liquid in the force measuring container in a preset direction according to a preset immersion scheme, the liquid is discharged through the communicating part arranged on the force measuring container, and the force measuring device measures the change of the weight of the liquid in the force measuring container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022261328.2U CN212779130U (en) | 2020-10-12 | 2020-10-12 | Immersion type 3D measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022261328.2U CN212779130U (en) | 2020-10-12 | 2020-10-12 | Immersion type 3D measuring device |
Publications (1)
| Publication Number | Publication Date |
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| CN212779130U true CN212779130U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022261328.2U Active CN212779130U (en) | 2020-10-12 | 2020-10-12 | Immersion type 3D measuring device |
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| CN (1) | CN212779130U (en) |
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2020
- 2020-10-12 CN CN202022261328.2U patent/CN212779130U/en active Active
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Address after: 314006 Building 2, 3556 Linggongtang Road, Daqiao Town, Nanhu District, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Zhengya Dental Co.,Ltd. Address before: 314006 4th floor, North District, building 1, 239, Asia Pacific Road, Daqiao Town, Nanhu District, Jiaxing City, Zhejiang Province Patentee before: ZHEJIANG YINCHILI MEDICAL TECHNOLOGY Co.,Ltd. |