CN107322972A - A kind of pressure column pinch roller axle construction of built in pressure sensor - Google Patents
A kind of pressure column pinch roller axle construction of built in pressure sensor Download PDFInfo
- Publication number
- CN107322972A CN107322972A CN201710529955.XA CN201710529955A CN107322972A CN 107322972 A CN107322972 A CN 107322972A CN 201710529955 A CN201710529955 A CN 201710529955A CN 107322972 A CN107322972 A CN 107322972A
- Authority
- CN
- China
- Prior art keywords
- pinch roller
- pressure
- hole
- threading hole
- shaft body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
- G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
Abstract
The invention provides a kind of pressure column pinch roller axle construction of built in pressure sensor, including pinch roller shaft body, radially it is provided with pinch roller shaft body between two coaxial but not insertion gauge holes, two gauge holes provided with the radial direction threading hole for ganging up two gauge holes；Pinch roller shaft body one end between one of gauge hole or radial direction threading hole vertically provided with axial threading hole；A pressure-strain piece is pasted on the side wall of two gauge holes respectively, two wires are penetrated in axial threading hole from pinch roller shaft body one end, and the weld with two pressure-strain pieces respectively.The present invention uses pressure-strain piece as pressure sensor, with the characteristics of sensitivity coefficient is big, mechanical hysteresis is minimum；Pressure sensor is formed integrally with wheel pressing shaft, simple for structure, and size is small, easy for installation；Eliminate the mechanical connecting structure of traditional sensors, it is to avoid error caused by mechanically connecting, improve the precision and feedback speed of pressure detecting.
Description
Technical field
The present invention relates to a kind of pressure column pinch roller axle construction of built in pressure sensor, it is adaptable to pharmacy, food service industry life
On the pressure column device of the rotary tablet machine of production.
Background technology
Rotary tablet machine is that the one kind grown up on the basis of single-punch tablet press can be continuously finished filling, tabletting, push away
Many stamping machines of a series of actions such as piece.The small, noise of vibration is low, energy consumption is small, yield is high because of it, steady quality and be adapted to rule
The features such as mould is produced at home and abroad is used widely, it has also become the main mechanical of tablet manufacturing.
In existing rotary tablet machine, the pressure sensor of the pressure column used is individual components, the pressure sensor
Mechanically connected between wheel pressing shaft with connecting rod.There are the following problems for this pressure sensor assembling mode：
1st, assembling structure is more complicated, and installation of the pressure sensor in pressure column is cumbersome；
2nd, middle mechanical connection link can influence the precision of pressure detecting；
3rd, during pressure detecting, also there is mechanical hysteresis in pressure sensor, it is impossible to which feedback pressure is detected in time
Value.
The content of the invention
The technical problem to be solved in the present invention is the pressure sensor assembling structure for how simplifying rotary tablet machine, is improved
The accuracy and speed of pressure detecting.
In order to solve the above-mentioned technical problem, the technical scheme is that providing a kind of pressure column of built in pressure sensor
Pinch roller axle construction, it is characterised in that：It is radially coaxial but not insertion provided with two in pinch roller shaft body including pinch roller shaft body
Provided with the radial direction threading hole for ganging up two gauge holes between gauge hole, two gauge holes；Pinch roller shaft body one
End between one of gauge hole or radial direction threading hole vertically provided with axial threading hole；
A pressure-strain piece is pasted on the side wall of two gauge holes respectively, two wires are penetrated from pinch roller shaft body one end
In axial threading hole, and the weld with two pressure-strain pieces respectively.
Preferably, sealed on the outside of described two gauge holes by silica gel protected lid.
Preferably, when the axial threading hole is located at pinch roller shaft body one end between one of gauge hole, two
Wire is penetrated in axial threading hole from pinch roller shaft body one end, and is extended at the gauge hole with axial threading hole insertion；One
The weld of root wire and the pressure-strain piece in the gauge hole；Biography of another wire from radial direction threading hole through opposite
In sensor hole, and on the joint for the pressure-strain piece being welded in the gauge hole of opposite.
Preferably, the axial threading hole located at pinch roller shaft body one end between radial direction threading hole when, two wires from
Pinch roller shaft body one end is penetrated in axial threading hole, and extend to at radial direction threading hole, respectively through the gauge hole of both sides
It is interior, and with the weld of two pressure-strain pieces.
Preferably, two wires are tightened up by cable, form an integral member.
Compared with prior art, the pressure column pinch roller axle construction for the built in pressure sensor that the present invention is provided has following beneficial
Effect：
1st, using pressure-strain piece as pressure sensor, with the characteristics of sensitivity coefficient is big, mechanical hysteresis is minimum；
2nd, pressure sensor and wheel pressing shaft are formed integrally, simple for structure, and size is small；
3rd, eliminate the mechanical connecting structure of traditional sensors, it is to avoid error caused by mechanically connecting, improve pressure
The precision and feedback speed of detection；
4th, it is easy for installation, cable need to only be coupled with control system in assembling.
Brief description of the drawings
The pressure column wheel pressing shaft structural representation for the built in pressure sensor that Fig. 1 provides for the present embodiment；
Fig. 2 is A-A sectional views in Fig. 1；
Fig. 3 is that threading hole punches schematic diagram.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.
The pressure column wheel pressing shaft structural representation for the built in pressure sensor that Fig. 1 and Fig. 1 provides for the present embodiment, it is described
The pressure column pinch roller axle construction of built in pressure sensor by partly constituting as follows：
Pinch roller shaft body 1, the carrier installed as pressure sensor；
Pressure-strain piece 2, realizes the sensing part of pressure detecting；
Wire 3, realizes the carrier of signal transmission；
Cable 5, for wire 3 to be tightened up, an integral member of formation；
Cable connector 4, for cable 5 to be fixed on into pinch roller shaft body 1；
Silica gel protected lid 6, for pressure-strain piece 2 to be isolated from the outside, realizes protective effect.
The process of the pressure column pinch roller axle construction for the built in pressure sensor that the present embodiment is provided is as follows：
Step 1：Two macropores are radially opened in pinch roller shaft body 1, on the same axis, hole is not open-minded for holes, is opened
Hole is perpendicular to axis, and Suo Kaikong centers are on the quadrantal points of axle.Opened in the middle of along both sides toward axle, the hole opened is complete along axis
Holohedral symmetry.
Step 2：A concentric aperture is opened at the macropore center opened in step 1, and two macropores are ganged up in this hole.In pressure
An eccentric threading hole is opened along the axis direction of axle in wheel shaft body 1, this threading hole is connected with one of macropore, is such as schemed
Shown in 3.
Step 3：Prefabricated pressure-strain piece 2, the application pressing force strain on the circular flat that the macropore bottom opened is formed
Piece 2, the paste position of pressure-strain piece 2 of both sides is symmetrical, and line is parallel to axis.
Step 4：Cable 5 is cut by physical length, two wires 3 of cable 5 are passed through after cable connector 4, from wearing
String holes is penetrated in the macropore opened to step 1, the weld of a wire 3 and the pressure-strain piece 2 in the macropore, Ling Yigen
Worn in the aperture that the wire of wire 3 is opened from step 2 to opposite macropore, on the joint for being welded to the pressure-strain piece 3 in the macropore of opposite.
Step 5：Two macropores are sealed by prefabricated silica gel protected lid 6, are isolated from the outside, make pressure-strain piece 2
Protected with wire 3.
Step 6：Cable connector 4 is fixed on the threading bore ends that pinch roller shaft body 1 is opened, the fixation of cable 5 is realized.
The operation principle of the pressure column pinch roller axle construction for the built in pressure sensor that the present embodiment is provided is as follows：
1st, when there is pressure on pinch roller, pinch roller shaft body 1 will be made to produce moment of flexure, so that pinch roller shaft body 1 is deformed.
2nd, the deformation of pinch roller shaft body 1 drives the pressure-strain piece 2 for being pasted on its surface to be deformed.According to pressure-strain
Piece principle, the deformation of pressure-strain piece makes the resistance value of itself change.
3rd, pressure-strain piece 2 is accessed by full-bridge circuit by cable 5, is provided with DC constant voltage source, according to formula：
U0=U* Δs R/ (R+ Δ R)
Wherein, U0For sensor output voltage；U is sensor input voltage；R is foil gauge internal resistance wire self-resistance；
Δ R is foil gauge internal resistance wire resistance variable after stress.
The change of monitoring voltage in circuit, you can obtain Δ R.
4th, according to formulaDraw ε；
Wherein, k is foil gauge internal resistance wire sensitivity coefficient, and k=l+2 μ, μ are the Poisson's ratio of foil gauge internal resistance wire, and l is
Foil gauge internal resistance wire initial length；Δ l is length varying value after foil gauge internal resistance wire stress；ε is strain value,
5th, according to mechanics of materials formula, inverse goes out upper the born pressure value of wheel pressing shaft.
The pressure column pinch roller axle construction for the built in pressure sensor that the present embodiment is provided can effectively improve pressure feedback speed,
And mechanical connection link is eliminated, measurement accuracy is got a promotion；Pressure sensor is formed integrally with wheel pressing shaft, makes structure letter
Change, profile is succinct, easy for installation.
It is described above, only presently preferred embodiments of the present invention, it is not any to the present invention in form and substantial limitation,
It should be pointed out that for those skilled in the art, on the premise of the inventive method is not departed from, can also make
Some improvement and supplement, these are improved and supplement also should be regarded as protection scope of the present invention.All those skilled in the art,
Without departing from the spirit and scope of the present invention, when made using disclosed above technology contents it is a little more
Dynamic, modification and the equivalent variations developed, are the equivalent embodiment of the present invention；Meanwhile, all substantial technologicals pair according to the present invention
The variation, modification and evolution for any equivalent variations that above-described embodiment is made, still fall within the scope of technical scheme
It is interior.
Claims (5)
1. a kind of pressure column pinch roller axle construction of built in pressure sensor, it is characterised in that：Including pinch roller shaft body (1), pinch roller
Radially it is provided between two coaxial but not insertion gauge holes, two gauge holes and is provided with two biographies in shaft body (1)
The radial direction threading hole that sensor hole is ganged up；Pinch roller shaft body (1) one end to one of gauge hole or radial direction threading hole it
Between vertically provided with axial threading hole；
Paste a pressure-strain piece (2) on the side wall of two gauge holes respectively, two wires (3) are from pinch roller shaft body (1) one
End is penetrated in axial threading hole, and the weld with two pressure-strain pieces (2) respectively.
2. a kind of pressure column pinch roller axle construction of built in pressure sensor as claimed in claim 1, it is characterised in that：Described two
Sealed on the outside of individual gauge hole by silica gel protected lid (6).
3. a kind of pressure column pinch roller axle construction of built in pressure sensor as claimed in claim 1, it is characterised in that：The axle
To threading hole located at pinch roller shaft body (1) one end between one of gauge hole when, two wires (3) are from pinch roller shaft body
(1) one end is penetrated in axial threading hole, and is extended at the gauge hole with axial threading hole insertion；A piece wire (3) is with being somebody's turn to do
The weld of pressure-strain piece (2) in gauge hole；Sensor of another wire (3) from radial direction threading hole through opposite
In hole, and on the joint for the pressure-strain piece (3) being welded in the gauge hole of opposite.
4. a kind of pressure column pinch roller axle construction of built in pressure sensor as claimed in claim 1, it is characterised in that：The axle
To threading hole located at pinch roller shaft body (1) one end between radial direction threading hole when, two wires (3) are from pinch roller shaft body (1) one
End is penetrated in axial threading hole, and extend to at radial direction threading hole, respectively through in the gauge hole of both sides, and with two pressures
The weld of stress-strain piece (3).
5. a kind of pressure column pinch roller axle construction of built in pressure sensor as claimed in claim 1, it is characterised in that：Described two
Root wire (3) is tightened up by cable (5), forms an integral member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710529955.XA CN107322972A (en) | 2017-06-30 | 2017-06-30 | A kind of pressure column pinch roller axle construction of built in pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710529955.XA CN107322972A (en) | 2017-06-30 | 2017-06-30 | A kind of pressure column pinch roller axle construction of built in pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107322972A true CN107322972A (en) | 2017-11-07 |
Family
ID=60199722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710529955.XA Pending CN107322972A (en) | 2017-06-30 | 2017-06-30 | A kind of pressure column pinch roller axle construction of built in pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107322972A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2686845Y (en) * | 2003-08-05 | 2005-03-23 | 上海天祥健台制药机械有限公司 | Mechanism for measuring tabletting force for pressure sensor |
| CN101089567A (en) * | 2006-06-14 | 2007-12-19 | 大连理工大学 | Beam ring force sensor |
| JP2009244151A (en) * | 2008-03-31 | 2009-10-22 | Toyota Motor Corp | Sensor and method for detecting pressure and friction force |
| KR20130013556A (en) * | 2011-07-28 | 2013-02-06 | 현대제철 주식회사 | Device for attaching strain gauge |
| CN104677527A (en) * | 2013-12-03 | 2015-06-03 | 上海天和制药机械有限公司 | Tabletting force measuring device |
| CN104723600A (en) * | 2015-03-16 | 2015-06-24 | 武汉轻工大学 | Chamber internal stress test method of screw oil press |
| CN204988576U (en) * | 2015-05-08 | 2016-01-20 | 上海东富龙科技股份有限公司 | Pressure sensor's excess loading protector in rotary tablet machine |
| CN106626503A (en) * | 2016-12-27 | 2017-05-10 | 银川西部大森数控技术有限公司 | Built-in force sensor capable of directly measuring force |
| CN106768523A (en) * | 2017-02-14 | 2017-05-31 | 南京泽荣自动化系统有限责任公司 | A kind of press tonnage measuring method and its device |
| CN207088545U (en) * | 2017-06-30 | 2018-03-13 | 上海东富龙科技股份有限公司 | The pressure column pinch roller axle construction of built in pressure sensor |
-
2017
- 2017-06-30 CN CN201710529955.XA patent/CN107322972A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2686845Y (en) * | 2003-08-05 | 2005-03-23 | 上海天祥健台制药机械有限公司 | Mechanism for measuring tabletting force for pressure sensor |
| CN101089567A (en) * | 2006-06-14 | 2007-12-19 | 大连理工大学 | Beam ring force sensor |
| JP2009244151A (en) * | 2008-03-31 | 2009-10-22 | Toyota Motor Corp | Sensor and method for detecting pressure and friction force |
| KR20130013556A (en) * | 2011-07-28 | 2013-02-06 | 현대제철 주식회사 | Device for attaching strain gauge |
| CN104677527A (en) * | 2013-12-03 | 2015-06-03 | 上海天和制药机械有限公司 | Tabletting force measuring device |
| CN104723600A (en) * | 2015-03-16 | 2015-06-24 | 武汉轻工大学 | Chamber internal stress test method of screw oil press |
| CN204988576U (en) * | 2015-05-08 | 2016-01-20 | 上海东富龙科技股份有限公司 | Pressure sensor's excess loading protector in rotary tablet machine |
| CN106626503A (en) * | 2016-12-27 | 2017-05-10 | 银川西部大森数控技术有限公司 | Built-in force sensor capable of directly measuring force |
| CN106768523A (en) * | 2017-02-14 | 2017-05-31 | 南京泽荣自动化系统有限责任公司 | A kind of press tonnage measuring method and its device |
| CN207088545U (en) * | 2017-06-30 | 2018-03-13 | 上海东富龙科技股份有限公司 | The pressure column pinch roller axle construction of built in pressure sensor |
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