CN114670486A - Tablet press for preparing detection sample - Google Patents
Tablet press for preparing detection sample Download PDFInfo
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- CN114670486A CN114670486A CN202210498258.3A CN202210498258A CN114670486A CN 114670486 A CN114670486 A CN 114670486A CN 202210498258 A CN202210498258 A CN 202210498258A CN 114670486 A CN114670486 A CN 114670486A
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- 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
- B30B11/04—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 co-operating with a fixed mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0094—Press load monitoring means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/26—Programme control arrangements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a tablet press for preparing a detection sample, belongs to the technical field of tablet press equipment, and can solve the problems that the subsequent test precision is influenced because the tablet pressing force of a traditional tablet press is difficult to control, so that the tablet pressing is difficult to take out or the tablet pressing is uneven. The tablet press comprises: the tabletting mold is used for placing a sample to be pressed; the pressing module is used for applying downward pressure to the tabletting mold; the push-up module comprises a piezoelectric ceramic actuator and a piezoelectric ceramic controller; the piezoelectric ceramic actuator is arranged below the tabletting mold; the piezoelectric ceramic controller is used for controlling the piezoelectric ceramic actuator to apply upward thrust to the tabletting mold so as to enable the piezoelectric ceramic actuator to be matched with the downward pressing module and extrude the sample to be pressed in the tabletting mold into a sheet shape; the pressure measurement module is used for measuring the thrust exerted by the piezoelectric ceramic actuator; and the control module is used for controlling the output voltage of the piezoelectric ceramic controller according to the thrust measured by the pressure measurement module. The invention is used for manufacturing the sample wafer to be tested.
Description
Technical Field
The invention relates to a tablet press for preparing a detection sample, and belongs to the technical field of tablet press equipment.
Background
The Fourier transform infrared spectrometer has the advantages of high luminous flux, low noise, high measuring speed and the like, and can perform qualitative and quantitative analysis on a sample, so the Fourier transform infrared spectrometer has wide functions in the fields of pharmaceutical and chemical industry, geological and mining, petroleum, coal, environmental protection, customs, precious stone identification, criminal investigation identification and the like.
The IR spectrum is one of the basis for qualitative identification, and the correct sample preparation method is required to make a high quality spectrum. Generally, the base line of a drawn spectrogram is relatively flat, the strongest peak is in a transmittance range, and the weak peak can be clearly seen and is not covered by noise. Therefore, it is important to master simple and practical sample preparation methods and to prepare high-quality spectrogram samples quickly. In general, the most important factor affecting the quality of the spectra is the thickness of the sample. The sample is too thin, the peaks will be weak, some peaks will be masked by the baseline noise; conversely, if the sample is too thick, the peak shape may become broader and even a truncated peak may be formed. The sample thickness should therefore vary from sample to sample. The tablet press plays a crucial role in the preparation thickness of the sample as an accessory of the Fourier transform infrared spectrometer.
Aiming at the preparation of a detection sample of a Fourier transform infrared spectrometer, the traditional tablet press mostly adopts a hydraulic manual driving mode to realize the compression of a powdery sample. The dynamics of preforming can vary from person to person, and too big dynamics can lead to the disk adhesion in the mould, is difficult for taking out, and the dynamics undersize can lead to the preforming inhomogeneous, influences follow-up measuring accuracy.
Disclosure of Invention
The invention provides a tablet press for preparing a detection sample, which can solve the problem that the subsequent test precision is influenced because the tablet pressing force of the traditional tablet press is difficult to control, so that the tablet pressing is difficult to take out or the tablet pressing is uneven.
The invention provides a tablet press for preparing a detection sample, which comprises:
the tabletting mold is used for placing a sample to be pressed;
the pressing module is arranged above the tabletting mold and is used for applying downward pressure to the tabletting mold;
the push-up module comprises a piezoelectric ceramic actuator and a piezoelectric ceramic controller; the piezoelectric ceramic actuator is arranged below the tabletting mold; the piezoelectric ceramic controller is used for controlling the piezoelectric ceramic actuator to apply upward thrust to the tabletting mold so as to enable the piezoelectric ceramic actuator to be matched with the lower pressing module and extrude the sample to be pressed in the tabletting mold into a tablet shape;
the pressure measurement module is used for measuring the thrust exerted by the piezoelectric ceramic actuator;
and the control module is used for controlling the output voltage of the piezoelectric ceramic controller according to the thrust measured by the pressure measurement module.
Optionally, the tabletting mold comprises:
the upper support pillar and the lower support pillar are oppositely arranged, and each upper support pillar and each lower support pillar comprises a circular table and a cylinder fixed in the center of the surface of one side of the circular table;
the sample fixing column is arranged between the upper top column and the lower pressing column, and a through hole is formed in the center of the sample fixing column and used for accommodating the sample to be pressed; the cylindrical top ends of the upper top column and the lower pressing column respectively extend into the through hole from two sides of the through hole so as to extrude the sample to be pressed;
the supporting piece is arranged between the upper top column and the sample fixing column and used for supporting the sample fixing column;
the bottom center of the round table of the upper support pillar is provided with a groove, and the groove is matched with a top end column cap of the piezoelectric ceramic actuator.
Optionally, the tablet press mold further comprises: and the U-shaped lower pressing piece is arranged above the sample fixing column and used for applying downward pressure to the sample fixing column so as to enable the pressed sample to be separated from the through hole of the sample fixing column.
Optionally, the sample fixing column is of a circular step structure; the opening end of the U-shaped lower pressing piece is provided with a notch structure matched with the circular step structure.
Optionally, the push-up module further includes:
the piezoelectric ceramic actuator is fixed in the sleeve, and a top end stud of the piezoelectric ceramic actuator extends out of the sleeve;
and the top cover is sleeved on a top end column head of the piezoelectric ceramic actuator and is used for sealing the top end opening of the sleeve.
Optionally, the pressure measurement module includes:
the pressure sensor is fixed in the sleeve, is in contact with the bottom end of the piezoelectric ceramic actuator and is used for measuring the thrust applied by the piezoelectric ceramic actuator;
and the collector is connected with the pressure sensor and the control module and is used for feeding back the thrust measured by the pressure sensor to the control module.
Optionally, the tablet press further comprises a box body; the sleeve is fixed in the box body, and a top end column head of the piezoelectric ceramic actuator extends out of the top surface of the box body;
the push-down module includes:
the cross beam is arranged above the box body and is provided with a threaded through hole;
one end of each support column is fixed on the box body, and the other end of each support column is fixed on the cross beam and used for supporting the cross beam;
and the torque knob is arranged on the beam, is in threaded connection with the threaded through hole and is used for applying downward pressure to a tabletting mold arranged on the top end column head of the piezoelectric ceramic actuator.
Optionally, the tablet press further comprises a pressure display connected between the pressure sensor and the collector, and configured to display a thrust value applied by the piezoelectric ceramic actuator in real time.
Optionally, the tablet press further comprises a front box body with an opening on one side;
the opening end face of the front box body is connected with the box body; the pressure display is embedded on the front panel of the box body.
Optionally, the control module is further configured to send warning information when the thrust measured by the pressure sensor is greater than a preset threshold.
The invention can produce the beneficial effects that:
(1) the tablet press provided by the invention adopts the piezoelectric ceramic actuator to provide pressure, the driving voltage is 1000V, the output force can be controlled, and the maximum output force can reach 50000N, namely 5 tons. The piezoelectric ceramic controller is used for controlling the output force of the piezoelectric ceramic actuator, and the pressing of the powder experiment sample can be realized within the range of 0-5 t.
(2) According to the tablet press provided by the invention, the piezoelectric ceramic actuator is controlled by the piezoelectric ceramic controller to apply pressure to the tablet pressing die part, meanwhile, the tablet pressing die forms a reaction force on the piezoelectric ceramic actuator, the pressure sensor is fixed at the tail end of the sleeve and is in contact with the piezoelectric ceramic actuator so as to acquire the magnitude of the reaction force, and the pressure sensor can display the magnitude of the pressure in real time through the pressure display.
(3) According to the tablet press provided by the invention, the pressure sensor is connected with the control module (namely an upper computer) through the concentrator to realize closed-loop control, and a pressure warning value (namely a preset threshold value) can be preset, wherein the pressure warning value is the pressure when an optimal spectrogram can be obtained. When the test sample is gradually pressurized, an alarm is triggered when a critical point is reached, so that the sample is protected from being damaged.
Drawings
Fig. 1 is a schematic view of an assembly structure of a tablet press provided by an embodiment of the present invention;
FIG. 2 is a schematic view of an assembly structure of a tablet pressing mold according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an exploded view of a sheeting die according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a push-up module according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a torque knob according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a box according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a front case provided in an embodiment of the present invention;
fig. 8 is a schematic diagram of a three-dimensional model of a tablet press according to an embodiment of the present invention.
List of parts and reference numerals:
10. a tabletting mold; 11. an upper top pillar; 111. a groove; 12. pressing the column; 13. a sample fixing column; 14. a support member; 15. a U-shaped lower member; 21. a piezoelectric ceramic actuator; 22. a piezoelectric ceramic controller; 23. a sleeve; 24. a top cover; 31. a pressure sensor; 32. a collector; 41. a cross beam; 42. a support column; 43. a torque knob; 50. a box body; 51. a wiring slot; 60. a pressure display; 70. a front box body; 71. a front panel; 80. an upper computer; 90. a work bench.
Detailed Description
The present invention will be described in detail with reference to examples, but the present invention is not limited to these examples.
An embodiment of the present invention provides a tablet press for preparing a test sample, as shown in fig. 1 to 8, including:
a tabletting mold 10 for placing a sample to be pressed;
a pressing module disposed above the tablet pressing mold 10 for applying a downward pressure to the tablet pressing mold 10;
the push-up module comprises a piezoelectric ceramic actuator 21 and a piezoelectric ceramic controller 22; the piezoelectric ceramic actuator 21 is arranged below the tabletting mold 10; the piezoelectric ceramic controller 22 is used for controlling the piezoelectric ceramic actuator 21 to apply an upward thrust to the tabletting mold 10, so that the piezoelectric ceramic actuator 21 is matched with the lower pressing module to extrude the sample to be pressed in the tabletting mold 10 into a tablet shape;
the pressure measuring module is used for measuring the thrust exerted by the piezoelectric ceramic actuator 21;
and the control module is used for controlling the output voltage of the piezoelectric ceramic controller 22 according to the thrust measured by the pressure measurement module. In practical application, the control module may be the upper computer 80.
The piezoelectric ceramic actuator 21 can be a high-voltage cylindrical piezoelectric ceramic actuator, the driving voltage can reach 1000V, and cylindrical mechanical packaging piezoelectric ceramic with pre-load force is provided; can bear certain tensile force, and is internally provided with high-output piezoelectric ceramics.
The piezoelectric ceramic controller 22 is a high-voltage controller, for example, a high-voltage piezoelectric ceramic controller of the E00/E01 series of core tomorrow can be used, and can output high voltage of 0-1000V.
The piezoelectric ceramic actuator 21 is adopted to provide pressure, the driving voltage is 1000V, the output force can be controlled, and the maximum output force can reach 50000N, namely 5 tons. The piezoelectric ceramic controller 22 is used for controlling the output force of the piezoelectric ceramic actuator 21, and the pressing of the powder experiment sample can be realized within the range of 0-5 t. Therefore, the problem that the tabletting force of the traditional tablet press is difficult to control, so that the tabletting is difficult to take out or is uneven, and the subsequent testing precision is influenced is solved.
Specifically, referring to fig. 1 to 3, the tableting die 10 includes:
the upper support pillar 11 and the lower support pillar 12 are arranged oppositely, and the upper support pillar 11 and the lower support pillar 12 both comprise a circular truncated cone and a cylinder fixed at the center of the surface of one side of the circular truncated cone.
A sample fixing column 13 which is arranged between the upper top column 11 and the lower pressing column 12, and the center of which is provided with a through hole for accommodating a sample to be pressed; the cylindrical top ends of the upper top column 11 and the lower pressing column 12 respectively extend into the through holes from both sides of the through holes to press the sample to be pressed.
And a support member 14 disposed between the upper top pillar 11 and the sample fixing pillar 13 for supporting the sample fixing pillar 13. The embodiment of the present invention does not limit the specific structure of the supporting member 14, as long as it can support; in practical applications, the supporting member 14 may be a U-shaped hole column structure.
The bottom center of the circular truncated cone of the upper support column 11 is provided with a groove 111, the groove 111 is matched with the top end column head of the piezoelectric ceramic actuator 21, and the design facilitates the piezoelectric ceramic actuator 21 to apply pressure on the tabletting mold 10.
The tableting die 10 further includes: and a U-shaped lower pressing member 15 disposed above the sample fixing column 13 for applying a downward pressure to the sample fixing column 13 to separate the pressed sample from the through hole of the sample fixing column 13.
In practical use, the upper support 11 is first placed on the top plunger of the piezoelectric ceramic actuator 21, the support 14 in the shape of a U-shaped hole is sleeved on the upper support, the sample fixing column 13 is placed on the upper support, so that a powdery sample can be loaded in the through hole of the sample fixing column 13, the lower support 12 is inserted into the through hole of the sample fixing column 13, then the support 14 in the shape of a U-shaped hole is pulled out, the torque knob 43 of the lower module is screwed down, and a pre-tightening force is applied through the torque knob 43 before the piezoelectric ceramic actuator 21 applies pressure. After the test sample is pressed, the moment knob 43 is loosened, the U-shaped pressing piece 15 is sleeved on the sample fixing column 13, then the moment knob 43 is slightly rotated, downward pressure is applied to the U-shaped pressing piece 15 by using the lower end of the moment knob 43, and thus the pressed test sample can be separated from the through hole of the sample fixing column 13.
Further, the sample fixing column 13 may have a circular step structure; the open end of the U-shaped lower press 15 has a notch structure matching the circular step structure. This design facilitates the application of force by the U-shaped hold-down 15 to the sample holding column 13.
Referring to fig. 1 and 5, the tablet press further includes a case 50; the sleeve 23 is fixed in the box 50 and the top end stud of the piezoceramic actuator 21 protrudes out of the top surface of the box 50. The bottom end of the box body 50 can be provided with a wiring slot 51, so that the connection among all the parts is convenient.
The pushing module specifically comprises:
the beam 41 is arranged above the box body 50 and is provided with a threaded through hole.
Two support posts 42, one end of which is fixed to the box 50 and the other end of which is fixed to the cross beam 41, support the cross beam 41. The bottom of the support column 42 may be threadably engaged with the housing 50.
And a torque knob 43 provided on the cross beam 41 and screwed with the threaded through-hole for applying downward pressure to the tablet die 10 mounted on the top end stud of the piezoceramic actuator 21. The torque knob 43 can be provided with different torques and is screw-engaged with the cross beam 41. The torque T of the torque knob 43 is controllable, and the thrust of the screw of the torque knob 43 at the bottom can be calculated according to the formula F ═ (2 × pi) × T/P. Wherein T is torque, F is screw thrust, and P is thread lead. The pre-tightening force of the torque knob 43 on the pressing column 12 is controlled by setting different torsion forces, and a click sound is generated when the set pre-tightening force is reached.
Referring to fig. 1 and 4, the push-up module further includes:
the sleeve 23, the piezoceramic actuator 21 is fixed in the sleeve 23, and the top end stud of the piezoceramic actuator extends out of the sleeve 23;
and the top cover 24 is sleeved on the top end stud of the piezoelectric ceramic actuator 21 and is used for closing the top end opening of the sleeve 23.
The pressure measurement module specifically includes:
a pressure sensor 31 fixed in the sleeve 23 and contacting the bottom end of the actuator 21 for measuring the thrust exerted by the actuator 21; in practical use, the piezoceramic actuator 21 is arranged in the box 50, the box 50 is placed on the worktable 90, the bottom end of the piezoceramic actuator 21 is fixed with the bottom surface of the box 50, and the pressure sensor 31 is arranged between the bottom end of the piezoceramic actuator 21 and the bottom surface of the box 50, so that when the piezoceramic actuator 21 applies upward thrust to the tabletting mold 10, the pressure sensor 31 receives downward reaction force of the piezoceramic actuator 21, the reaction force is the same as the upward thrust in magnitude and in opposite direction, and the specific value of the upward thrust applied to the tabletting mold 10 by the piezoceramic actuator 21 can be accurately measured by using the pressure sensor 31.
And the collector 32 is connected with both the pressure sensor 31 and the control module and is used for feeding back the thrust measured by the pressure sensor 31 to the control module. In practical application, the control module may be the upper computer 80. The pressure sensor 31 feeds back signals to the upper computer 80 through the collector 32, so that closed-loop control over the pressure sensor 31 can be achieved.
In the embodiment of the present invention, the tablet press further includes a pressure display 60, and the pressure display 60 is connected between the pressure sensor 31 and the collector 32, and is used for displaying the thrust value exerted by the piezoceramic actuator 21 (i.e. the pressure value received by the tablet press mold 10 from the piezoceramic actuator 21) in real time.
The tablet press further comprises a front box body 70 with an opening on one side; the open end face of the front case 70 is connected to the case 50; the pressure indicator 60 is embedded in the front panel 71 of the case. For example, the open end of the front case 70 may be connected to the case 50 by means of a slot.
Further, the control module is further configured to send out warning information when the thrust measured by the pressure sensor 31 is greater than a preset threshold. This prevents the sample from being damaged by excessive force. The specific value of the preset threshold is not limited in the embodiment of the invention, and a person skilled in the art can set the value according to actual conditions.
The piezoelectric ceramic actuator 21 is adopted to provide pressure, the driving voltage is 1000V, the output force can be controlled, and the maximum output force can reach 50000N, namely 5 tons. The piezoelectric ceramic controller 22 is used for controlling the output force of the piezoelectric ceramic actuator 21, and the pressing of the powder experiment sample can be realized within the range of 0-5 t.
The invention controls the piezoelectric ceramic actuator 21 to apply pressure to the tabletting mold 10 part by adopting the piezoelectric ceramic controller 22, meanwhile, the tabletting mold 10 forms a reaction force to the piezoelectric ceramic actuator 21, the pressure sensor 31 is fixed at the tail end of the sleeve 23 and is in contact with the piezoelectric ceramic actuator 21 so as to acquire the magnitude of the reaction force, and the pressure sensor 31 can display the magnitude of the pressure in real time through the pressure display 60.
The pressure sensor 31 of the present invention is connected to the control module (i.e. the upper computer 80) through the hub to realize closed-loop control, and a pressure alarm value (i.e. a preset threshold value) can be preset, wherein the pressure alarm value is the pressure when the optimal spectrogram can be obtained. When the test sample is gradually pressurized, an alarm is triggered when a critical point is reached, so that the sample is protected from being damaged.
Although the present application has been described with reference to a few embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the application as defined by the appended claims.
Claims (10)
1. A tablet press for preparing test samples, comprising:
the tabletting mold is used for placing a sample to be pressed;
the pressing module is arranged above the tabletting mold and is used for applying downward pressure to the tabletting mold;
the push-up module comprises a piezoelectric ceramic actuator and a piezoelectric ceramic controller; the piezoelectric ceramic actuator is arranged below the tabletting mold; the piezoelectric ceramic controller is used for controlling the piezoelectric ceramic actuator to apply upward thrust to the tabletting mold so as to enable the piezoelectric ceramic actuator to be matched with the lower pressing module and extrude the sample to be pressed in the tabletting mold into a tablet shape;
the pressure measurement module is used for measuring the thrust exerted by the piezoelectric ceramic actuator;
and the control module is used for controlling the output voltage of the piezoelectric ceramic controller according to the thrust measured by the pressure measurement module.
2. The tablet press according to claim 1, wherein the tablet dies comprise:
the upper support pillar and the lower support pillar are oppositely arranged, and each upper support pillar and each lower support pillar comprises a circular table and a cylinder fixed in the center of the surface of one side of the circular table;
the sample fixing column is arranged between the upper top column and the lower pressing column, and a through hole is formed in the center of the sample fixing column and used for accommodating the sample to be pressed; the cylindrical top ends of the upper top column and the lower pressing column respectively extend into the through hole from two sides of the through hole so as to extrude the sample to be pressed;
the supporting piece is arranged between the upper top column and the sample fixing column and used for supporting the sample fixing column;
the bottom center of the round table of the upper support pillar is provided with a groove, and the groove is matched with a top end column cap of the piezoelectric ceramic actuator.
3. The tablet press according to claim 2, wherein the tablet dies further comprise: and the U-shaped lower pressing piece is arranged above the sample fixing column and used for applying downward pressure to the sample fixing column so as to enable the pressed sample to be separated from the through hole of the sample fixing column.
4. The tablet press according to claim 3, wherein the sample fixation posts are circular step structures; the opening end of the U-shaped lower pressing piece is provided with a notch structure matched with the circular step structure.
5. The tablet press according to claim 3, wherein the push-up module further comprises:
the piezoelectric ceramic actuator is fixed in the sleeve, and a top end stud of the piezoelectric ceramic actuator extends out of the sleeve;
and the top cover is sleeved on a top end column head of the piezoelectric ceramic actuator and is used for sealing the top end opening of the sleeve.
6. The tablet press according to claim 5, wherein the pressure measurement module comprises:
the pressure sensor is fixed in the sleeve, is in contact with the bottom end of the piezoelectric ceramic actuator and is used for measuring the thrust applied by the piezoelectric ceramic actuator;
and the collector is connected with the pressure sensor and the control module and is used for feeding back the thrust measured by the pressure sensor to the control module.
7. The tablet press according to claim 6, wherein the tablet press further comprises a housing; the sleeve is fixed in the box body, and a top end column head of the piezoelectric ceramic actuator extends out of the top surface of the box body;
the push-down module includes:
the cross beam is arranged above the box body and is provided with a threaded through hole;
one end of each supporting column is fixed on the box body, and the other end of each supporting column is fixed on the cross beam and used for supporting the cross beam;
and the torque knob is arranged on the beam, is in threaded connection with the threaded through hole and is used for applying downward pressure to a tabletting mold arranged on the top end column head of the piezoelectric ceramic actuator.
8. The tablet press according to claim 7, further comprising a pressure display connected between the pressure sensor and the collector for displaying in real time the magnitude of the thrust exerted by the piezoceramic actuator.
9. The tablet pressing machine according to claim 8, further comprising a front box open on one side;
the opening end face of the front box body is connected with the box body; the pressure display is embedded on the front panel of the box body.
10. The tablet press according to claim 6, wherein the control module is further adapted to issue a warning message when the push force measured by the pressure sensor is greater than a preset threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210498258.3A CN114670486A (en) | 2022-05-09 | 2022-05-09 | Tablet press for preparing detection sample |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210498258.3A CN114670486A (en) | 2022-05-09 | 2022-05-09 | Tablet press for preparing detection sample |
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| CN114670486A true CN114670486A (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210498258.3A Pending CN114670486A (en) | 2022-05-09 | 2022-05-09 | Tablet press for preparing detection sample |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06220504A (en) * | 1993-01-29 | 1994-08-09 | Hitachi Metals Ltd | Powder press forming machine |
| JP2000094194A (en) * | 1998-09-16 | 2000-04-04 | Fuji Oozx Inc | Discharging device for green compact |
| JP2000094192A (en) * | 1998-09-14 | 2000-04-04 | Fuji Oozx Inc | Device for discharging green compact |
| WO2003074263A1 (en) * | 2002-03-05 | 2003-09-12 | Eisai Co., Ltd. | Method and device for evaluating compression molding characteristics of powder |
| JP2004174596A (en) * | 2002-11-29 | 2004-06-24 | Nano Control:Kk | Powder press and method of the same |
| CN1820933A (en) * | 2005-12-26 | 2006-08-23 | 西北工业大学 | Super plasticity extruding and forming device for micro parts |
| CN110181850A (en) * | 2019-06-05 | 2019-08-30 | 合肥旺和电子科技有限公司 | High speed sheeting system and its control method for pharmaceutical equipment |
| CN110869147A (en) * | 2017-07-10 | 2020-03-06 | 住友电气工业株式会社 | Method for producing powder compact |
| CN215620252U (en) * | 2021-01-25 | 2022-01-25 | 南京以太通信技术有限公司 | Driving cylinder control assembly and press machine |
-
2022
- 2022-05-09 CN CN202210498258.3A patent/CN114670486A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06220504A (en) * | 1993-01-29 | 1994-08-09 | Hitachi Metals Ltd | Powder press forming machine |
| JP2000094192A (en) * | 1998-09-14 | 2000-04-04 | Fuji Oozx Inc | Device for discharging green compact |
| JP2000094194A (en) * | 1998-09-16 | 2000-04-04 | Fuji Oozx Inc | Discharging device for green compact |
| WO2003074263A1 (en) * | 2002-03-05 | 2003-09-12 | Eisai Co., Ltd. | Method and device for evaluating compression molding characteristics of powder |
| JP2004174596A (en) * | 2002-11-29 | 2004-06-24 | Nano Control:Kk | Powder press and method of the same |
| CN1820933A (en) * | 2005-12-26 | 2006-08-23 | 西北工业大学 | Super plasticity extruding and forming device for micro parts |
| CN110869147A (en) * | 2017-07-10 | 2020-03-06 | 住友电气工业株式会社 | Method for producing powder compact |
| CN110181850A (en) * | 2019-06-05 | 2019-08-30 | 合肥旺和电子科技有限公司 | High speed sheeting system and its control method for pharmaceutical equipment |
| CN215620252U (en) * | 2021-01-25 | 2022-01-25 | 南京以太通信技术有限公司 | Driving cylinder control assembly and press machine |
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