CN211591426U - Controllable film clamp of preforming environment - Google Patents

Controllable film clamp of preforming environment Download PDF

Info

Publication number
CN211591426U
CN211591426U CN201921577166.4U CN201921577166U CN211591426U CN 211591426 U CN211591426 U CN 211591426U CN 201921577166 U CN201921577166 U CN 201921577166U CN 211591426 U CN211591426 U CN 211591426U
Authority
CN
China
Prior art keywords
preforming
tabletting
base
pressing
working cavity
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.)
Active
Application number
CN201921577166.4U
Other languages
Chinese (zh)
Inventor
范茁宁
刘福生
甘云丹
韦丁
蒋城露
华颖鑫
任月虹
张明建
刘其军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southwest Jiaotong University
Original Assignee
Southwest Jiaotong University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Southwest Jiaotong University filed Critical Southwest Jiaotong University
Priority to CN201921577166.4U priority Critical patent/CN211591426U/en
Application granted granted Critical
Publication of CN211591426U publication Critical patent/CN211591426U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

The utility model relates to a physics preforming technical field, concretely relates to controllable film clamp of preforming environment, including base, preforming post, depression bar, evacuating device and heating mechanism, base, preforming post, depression bar set gradually from bottom to top, be provided with the preforming passageway in the preforming post, the base top is provided with the base station, the cover is equipped with first flexible sealing ring on the base station, the depression bar includes spacing portion and sets up the pressing plate portion in spacing portion bottom, and the cover is equipped with the flexible sealing ring of second on the pressing plate portion. The utility model discloses utilize heating mechanism to heat the preforming post, carry out evacuation processing to the working chamber through the vacuum pump for the working chamber is in negative pressure, high temperature state, lets the crystal water in the material can rapid evaporation, and under the pump-out of vacuum pump, discharges vapor, makes the preforming material that makes fine and close, and purity is also higher, and the time of preforming shortens moreover, realizes that high quality, the high efficiency of preforming are accomplished.

Description

Controllable film clamp of preforming environment
Technical Field
The utility model relates to a physics preforming technical field, concretely relates to controllable film clamp of preforming environment.
Background
Tabletting, one of dry molding, and tabletting or ring-shaped with a tabletting machine. The raw material powder for molding may be completely dried or have a certain moisture. During molding, the powder is placed in a mold, and a molding agent such as graphite is usually added to facilitate demolding and adjustment of the pore structure. The method has the advantages of being capable of adjusting the pressure of a forming machine and easily preparing the catalyst with required strength. The particles are regular in shape and high in strength, and are particularly advantageous for high pressure or high flow rate reactions. When tabletting, the powders are bonded to each other mainly by van der waals forces. Capillary pressure also increases the bonding capacity in the presence of water. When the molding pressure is not too large, the pore structure and specific surface change. When the pressure is too large, the chemical structure is generally changed in addition to the physical structure, thereby affecting the catalyst activity.
The tabletting technique is not only very important in medical science and biology, but also is an essential link for making samples in scientific research in the fields of physics, chemistry, biology and the like. At present, a common tabletting device, such as a tabletting device disclosed in chinese patent publication No. CN103538797B, which has a better tablet fixing effect, includes a tabletting film, the tabletting film includes a connecting portion and a plurality of fan-shaped pieces, all the fan-shaped pieces are uniformly arranged along the circumferential direction of the connecting portion, and further includes a connecting shaft, the lower end of the connecting shaft is provided with an umbrella-shaped structure with a diameter smaller than that of the tabletting film, an opening of the umbrella-shaped structure faces away from the connecting shaft, and the center of the connecting portion is installed at the center of the umbrella-shaped structure; after the center of the tabletting film is connected to the center of the umbrella-shaped structure, the tabletting film is restrained to be in a conical shape, and the tabletting film has elasticity and corresponding shrinkage at the moment; the connecting shaft has high rigidity, so that the pressing sheet film is prevented from being overturned or moved left and right, the action center of the pressing sheet film is basically fixed, and the pressing sheet film can only adapt to the inclination of the upper surface of the tablet stack in the bottle by self deformation without overlarge inclination. However, the pressed tablet pressed by the tabletting machine has poor transparency, low purity and long tabletting time, and compared with the simple substance density of the granular raw material, the density of the pressed tablet pressed by the tabletting machine is reduced by more than 5%.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide a controllable film clamp of preforming environment and, when the actual work research, to different materials, for reaching anticipated preforming quality, need control the preforming environment, only under predetermined environment, could reach anticipated preforming effect. The utility model provides a film clamp utilizes heating mechanism to heat the preforming post, carries out evacuation treatment to the working chamber through the vacuum pump for the working chamber is in negative pressure, high temperature state, lets the crystal water in the material can rapid evaporation, and draws down at the vacuum pump, discharges vapor, makes the pressfitting material that makes fine and close, and purity is also higher, and the time of preforming shortens moreover, realizes that high quality, the high efficiency of preforming are accomplished.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a controllable film clamp of preforming environment, includes base, preforming post and depression bar, and its structural feature is: the device comprises a base, a tabletting column and a pressing rod, and is characterized by further comprising a vacuumizing device and a heating mechanism, wherein the base, the tabletting column and the pressing rod are sequentially arranged from bottom to top, a tabletting channel is arranged in the tabletting column, a base station is arranged at the top of the base, a first flexible sealing ring is sleeved on the base station, a second flexible sealing ring is sleeved on the pressing rod, and the pressing rod and the base station are inserted into the tabletting channel in a working state; the bottom surface of depression bar, preforming passageway and the top surface of base station enclose to close and constitute the working chamber, evacuating device is used for carrying out the evacuation to the working chamber, heating mechanism is used for heating the working chamber.
Furthermore, the pressure lever comprises a limiting part and a pressing part, the limiting part and the pressing part are connected into a whole, and the diameter of the limiting part is larger than that of the pressing part and is larger than the inner diameter of the pressing channel; the second flexible sealing ring is sleeved on the outer circumference of the lower half part of the pressing sheet part and close to the bottom surface, and in a working state, part or all of the pressing sheet part is inserted into the pressing sheet channel.
Specifically, in the tabletting device, the vacuumizing device comprises a vacuum pump and a vacuum tube, the side wall of the tabletting column is provided with an air exhaust hole communicated with the working cavity, and the air exhaust hole is formed on the circumference of the lower part of the working cavity close to the bottom surface; one end of the vacuum tube is communicated with the working cavity through an air exhaust hole, and the other end of the vacuum tube is communicated with the vacuum pump; the vacuum pipe is provided with a control valve, and the vacuum pump is provided with a display instrument. In the actual work in-process, when carrying out the preforming to the material, through control vacuum pump work, carry out the evacuation to the working chamber for the pressure reduces in the working chamber, and under negative pressure state, the material is more easily compressed into the piece, and simultaneously, the material that the suppression is flaked is also inseparabler, in addition, has effectively shortened the material time of suppression flakiness, provides preforming efficiency. At the in-process to the working chamber evacuation, can look over the vacuum of working chamber through display instrument, in time know the vacuum change of working chamber, then in time make the adjustment to vacuum according to the preforming demand, let the material carry out the preforming under the best environment to reach anticipated preforming effect, improve preforming efficiency and preforming quality.
Preferably, the base and the base are integrally formed, and the first flexible sealing ring is sleeved on the circumference of the upper half part of the base close to the top surface.
More preferably, the device further comprises a display module; the side wall of the tabletting column is also provided with a temperature measuring hole, the temperature measuring hole is communicated with the working cavity, a temperature sensor is arranged at the temperature measuring hole and used for detecting the temperature in the working cavity, and the temperature sensor is electrically connected with the display module. In the course of the work, through temperature sensor and heating mechanism cooperation, control resistance wire work heats the working chamber, utilize temperature sensor to detect the temperature of working chamber simultaneously, then according to the temperature value that the preforming needs, the work of control regulator, the adjustment lets in the voltage of resistance wire, thereby the heating power of adjustment resistance wire, make the temperature of working chamber reach the predetermined value fast, let the material carry out the preforming in predetermined environment, in order to reach anticipated preforming effect, improve preforming efficiency and preforming quality.
Further, the temperature sensor is a thermocouple.
Furthermore, according to the tabletting device, the heating mechanism comprises a resistance wire and an adjuster, the resistance wire is wound on the tabletting columns, and the adjuster is used for adjusting the voltage and the current introduced into the resistance wire. Through setting up the resistance wire into winding preforming post, electric current and voltage through regulator control lets in the resistance wire, at the preforming in-process, when needing to heat the working chamber, control resistance wire work, heat the preforming post, the heat passes through the preforming post and transmits to the working chamber, thereby realize the heating to the working chamber, utilize temperature sensor to detect the temperature in working chamber simultaneously, then temperature value according to preforming needs, control regulator work, the adjustment lets in the voltage of resistance wire, thereby the heating power of adjustment resistance wire, make the temperature in working chamber reach the predetermined value fast, let the material carry out the preforming in predetermined environment, in order to reach anticipated preforming effect, improve preforming efficiency and preforming quality.
Preferably, the display module further comprises a pressure sensor, the pressure sensor is arranged at the bottom of the base or at the top surface of the base, and the pressure sensor is electrically connected with the display module.
Specifically, the tabletting device further comprises a driving device, and the driving device is used for pushing the pressing rod to move towards the base. In the course of the work, base and preforming post are fixed, and drive arrangement promotes the preforming portion of depression bar and removes to the base station in the preforming passageway, through the material of extrusion work intracavity, realizes the preforming to the material.
Further, the driving device is a jack.
More preferably, the base, the tabletting columns and the pressure rods are all made of metal materials; the base, the base station, the pressing column, the limiting part and the pressing part are all cylindrical; the diameter of the base station is the same as that of the tabletting part and is not more than that of the tabletting channel; the outer diameters of the first flexible sealing ring and the second flexible sealing ring are both larger than the inner diameter of the tabletting channel.
Furthermore, the difference between the diameters of the tabletting channel and the base is 0-0.02 mm.
Further, the temperature measuring hole is sealed through sealant or filled through the sealant. The temperature measuring holes are sealed through the sealant or filled through the sealant, so that the working cavity is kept in a closed environment, the working cavity is vacuumized conveniently when the vacuum pump works, the tightness of equipment is guaranteed, and the tabletting quality and the tabletting efficiency are improved in an auxiliary mode.
Further, the temperature measuring hole and the air suction hole are located on the same horizontal plane.
Further, the temperature measuring hole is close to the base station and arranged above the base station. In the process of tabletting, because the base station and the tabletting columns on the base are kept still, downward pressure is only required to be applied downwards to the pressing rod, the materials in the working cavity can be tabletted, the vacuum degree and the temperature of the working cavity are controlled and known in real time, the temperature measuring holes and the air exhaust holes are arranged on the same horizontal plane, the temperature measuring holes are close to the base station and are arranged above the base station, the temperature measuring holes are communicated with the working cavity constantly, the interruption of the temperature measuring holes and the air exhaust holes along with the tabletting can be avoided, the real-time monitoring is realized, the vacuum degree and the temperature of the working cavity are adjusted, and the convenience of tabletting control is improved.
The utility model adopts the above technical scheme's beneficial effect is: the utility model provides a pair of controllable film clamp of preforming environment utilizes heating mechanism to heat the preforming post, carries out evacuation processing to the working chamber through the vacuum pump for the working chamber is in negative pressure, high temperature state, lets the crystal water in the material can rapid evaporation, and under the drawing of vacuum pump, discharges vapor, makes the preforming material that makes fine and close, and purity is also higher, and the time of preforming shortens moreover, realizes that high quality, the high efficiency of preforming are accomplished.
Drawings
FIG. 1 is a schematic structural view of a tablet press device according to the present invention;
FIG. 2 is a cross-sectional view of the sheeting column of the present invention;
in the figure, 1-base, 2-tabletting column, 3-pressure rod, 4-tabletting channel, 5-base, 6-first flexible sealing ring, 7-limiting part, 8-pressure piece part, 9-second flexible sealing ring, 10-working cavity, 11-vacuum pump, 12-vacuum tube, 13-resistance wire, 14-regulator, 15-temperature measuring hole, 16-air extracting hole and 17-display module.
Detailed Description
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
As shown in fig. 1 and 2, a tablet pressing device with a controllable tablet pressing environment comprises a base 1, a tablet pressing column 2, a pressing rod 3, a vacuum pumping device and a heating mechanism, wherein the base 1, the tablet pressing column 2 and the pressing rod 3 are sequentially arranged from bottom to top, a tablet pressing channel 4 is arranged in the tablet pressing column 2, a base platform 5 is arranged on the top of the base 1, and in the embodiment, the base 1 and the base platform 5 are integrally formed. The base station 5 is sleeved with a first flexible sealing ring 6, and the first flexible sealing ring 6 is sleeved on the circumference of the upper half part of the base station 5 close to the top surface; in the working state, the base station 5 is inserted in the tabletting channel 4; the pressure lever 3 comprises a limiting part 7 and a pressing part 8 arranged at the bottom of the limiting part 7, the limiting part 7 and the pressing part 8 are connected into a whole, and the outer diameter of the limiting part 7 is larger than the diameter of the pressing part 8 and larger than the inner diameter of the pressing channel 4; a second flexible sealing ring 9 is sleeved on the pressure plate part 8, and the second flexible sealing ring 9 is sleeved on the circumference of the lower half part of the pressure plate part 8 close to the bottom surface; in the working state, part or all of the tabletting part 8 of the pressure lever 3 is inserted into the tabletting channel 4; and the bottom surface of the tabletting part 8, the tabletting channel 4 and the top surface of the base station 5 are enclosed to form a working cavity 10, the vacuumizing device is used for vacuumizing the working cavity 10, and the heating mechanism is used for heating the working cavity 10. The first flexible sealing ring 6 and the second flexible sealing ring 9 are both made of high-temperature-resistant rubber materials and can resist the environmental temperature in the working cavity 10 in the pressing sheet process.
The vacuumizing device comprises a vacuum pump 11 and a vacuum tube 12, the side wall of the tabletting column 2 is provided with an air extracting hole 16 communicated with the working cavity 10, and the air extracting hole 16 is arranged on the circumference of the lower part of the working cavity 10 close to the bottom surface; one end of the vacuum tube 12 is communicated with the working cavity 10 through the air exhaust hole 16, and the other end of the vacuum tube 12 is communicated with the vacuum pump 11.
In the present embodiment, a display module 17 and a pressure sensor (not shown in the figure) are further provided, specifically, a pressure sensor is provided at the bottom of the base 1, that is, the pressure sensor is provided between the bottom of the base 1 and the working table on which the tablet compressing device is placed; of course, the pressure sensor may be disposed on the top of the base 5, and when the pressure sensor is disposed on the top of the base 5, it is necessary to drill a cable hole of the pressure sensor on the base 5 and the base 1. Utilize pressure sensor to detect the material at the preforming in-process pressure size that receives to electrically connect pressure sensor and display module 17, show the pressure value in the course of the work on display module 17, then according to the pressure that detects, the pressure that acts on depression bar 3 is adjusted to the pertinence, realizes the accurate regulation of preforming pressure.
Specifically, the base 1, the pressing sheet column 2 and the pressing rod 3 are made of metal materials respectively. Preferably, the base 1, the pressing column 2 and the pressing rod 3 are made of steel materials respectively.
Specifically, the base 1, the base 5, the pressing column 2, the limiting portion 7 and the pressing piece portion 8 are respectively cylindrical. Preferably, the diameter of the base 5 is the same as that of the tablet pressing part 8, and the diameter of the base 5 is not larger than that of the tablet pressing channel 4.
Specifically, the difference between the diameters of the tabletting channel 4 and the base 5 is 0 to 0.02 mm. Preferably, the first flexible sealing ring 6 and the second flexible sealing ring 9 have an outer diameter larger than the diameter of the tabletting channel 4.
In the actual work in-process, when carrying out the preforming to the material, through the work of control vacuum pump 11, carry out the evacuation to working chamber 10 for pressure reduces in working chamber 10, and under negative pressure state, the material is compressed into the piece more easily, and simultaneously, the material that the suppression is flaked is also inseparabler, and in addition, carrying out the preforming under negative pressure state has still effectively shortened the time that the material suppression is flaked, has improved preforming efficiency.
In particular, the vacuum tube 12 is provided with a control valve, not shown in the figures.
Specifically, still be provided with the display instrument on vacuum pump 11, at the in-process to working chamber 10 evacuation, can look over the vacuum of working chamber 10 through the display instrument, in time know the vacuum change of working chamber 10, then in time make the adjustment to vacuum according to the preforming demand, let the material carry out the preforming under the best environment to reach anticipated preforming effect, improve preforming efficiency and preforming quality.
Specifically, the heating mechanism comprises a resistance wire 13 and a regulator 14, the resistance wire 13 is wound around the tabletting column 2, and the regulator 14 is used for controlling the voltage and the current introduced into the resistance wire 13. Through setting up resistance wire 13 into winding preforming post 2, voltage and the electric current that lets in resistance wire 13 through regulator 14 control, at the preforming in-process, when needing to heat working chamber 10, control resistance wire 13 work, heat preforming post 2, the heat transmits to working chamber 10 through preforming post 2, thereby realize the heating to working chamber 10, utilize temperature sensor to detect the temperature of working chamber 10 simultaneously, then according to the temperature value that the preforming needs, control regulator 14 work, the adjustment lets in voltage and the electric current of resistance wire 13, thereby the heating power of adjustment resistance wire 13, make the preset value of quick adjustment of working chamber 10's temperature, let the material carry out the preforming in predetermined environment, in order to reach anticipated preforming effect, improve preforming efficiency and preforming quality.
Specifically, a temperature measuring hole 15 is formed in the side wall of the tabletting column 2, the temperature measuring hole 15 is communicated with the working cavity 10, a temperature sensor is arranged at the temperature measuring hole and used for detecting the temperature of the working cavity 10, and the temperature sensor is electrically connected with the display module 17. In the course of the work, through temperature sensor and heating mechanism cooperation, control resistance wire 13 work, heat working chamber 10, utilize temperature sensor to detect working chamber 10's temperature simultaneously, then according to the temperature value that the preforming needs, control regulator 14 work, the adjustment lets in the voltage and the electric current of resistance wire 13, thereby the heating power of adjustment resistance wire 13, make working chamber 10's temperature reach the predetermined value fast, let the material carry out the preforming in predetermined environment, in order to reach anticipated preforming effect, improve preforming efficiency and preforming quality.
Specifically, the temperature sensor is a thermocouple.
Specifically, the temperature measuring hole 15 is sealed by a sealant or filled by a sealant. The temperature measuring holes 15 are sealed through the sealant or the temperature measuring holes 15 are filled through the sealant, so that the working chamber 10 is kept in a closed environment, the vacuum pump 11 is convenient to vacuumize the working chamber 10 when working, the tightness of the working chamber 10 is guaranteed, and the tabletting quality and the tabletting efficiency are improved in an auxiliary mode.
Specifically, the temperature measuring hole 15 and the air pumping hole 16 are located on the same horizontal plane, and the temperature measuring hole 15 and the air pumping hole 16 are respectively located on two sides of the working cavity 10, that is, the temperature measuring hole 15 is also arranged on the circumference of the lower portion of the working cavity 10 close to the bottom surface.
Specifically, the temperature measuring hole 15 is close to the base 5, and the temperature measuring hole 15 is arranged above the base 5. In the tabletting process, the base station 5 and the tabletting columns 2 on the base 1 are kept still, and only downward pressure is required to be applied to the compression bar 3, so that materials in the working cavity 10 can be tabletted, and in order to ensure that the vacuum degree and the temperature of the working cavity 10 are mastered and known in real time, the temperature measuring hole 15 and the air exhaust hole 16 are arranged on the same horizontal plane, the temperature measuring hole 15 is close to the base station 5, and the temperature measuring hole 15 is arranged above the base station 5, so that the temperature measuring hole 15 and the air exhaust hole 16 are communicated with the working cavity 10 constantly, interruption along with the tabletting is avoided, real-time monitoring is realized, the vacuum degree and the temperature of the working cavity 10 are adjusted, and the tabletting control convenience is improved.
Specifically, the tablet pressing device further comprises a display module 17, and the display module 17 is connected with a temperature sensor. Preferably, the pressure sensor is connected to the display module 17. In the in-process of preforming, the temperature in the temperature sensor that utilizes the setting to locate 15 temperature measurement holes detects working chamber 10, utilize pressure sensor to detect the pressure that the material received, and data transfer to display module 17 that detects temperature sensor and pressure sensor shows, let the user in time know the temperature of working chamber 10, the preforming pressure that the material received, then control regulator 14 and drive arrangement work, according to the preforming pressure that the temperature of user demand adjustment working chamber 10 and material received, let the whole process of preforming accomplish under controllable condition. Through the display instrument that sets up on the vacuum pump 11, the user can know the vacuum degree of working chamber 10, then according to the user demand, in time adjusts the operating condition of vacuum pump 11 to change the vacuum degree of working chamber 10, realize the customization preforming. Of course, it is also possible to replace the display instrument provided on the vacuum pump 11 with a vacuum degree sensor and electrically connect the vacuum degree sensor to the display module 17, so that the vacuum degree of the working chamber 10 can be checked through the display module 17, which has similar beneficial effects as the display instrument.
Preferably, the display module 17 is a display screen.
Specifically, the tablet pressing device further comprises a driving device which is used for pushing the pressing rod 3 to move towards the base 1. In the working process, the base 1 and the tabletting columns 2 are fixed, the driving device pushes the tabletting parts 8 of the pressing rods 3 to move towards the base station 5 in the tabletting channel 4, and the tabletting of materials is realized by extruding the materials in the working cavity 10.
In particular, the drive means is a jack.
According to the using method of the tabletting device, the material to be tabletted is placed in the working cavity 10, then pressure is applied to the pressing rod 3, the pressing piece part 8 moves towards the base station 5 in the tabletting channel 4, the heating mechanism is controlled to heat the tabletting columns 2, the working cavity 10 is heated, the vacuumizing device is controlled to work to vacuumize the working cavity 10, and the material is tabletted in a heating and negative pressure state. After the material is pressed and formed, the tabletting column 2 is lifted upwards to separate the tabletting column 2 from the base 5, and then the pressed and formed tablet is poked out from the tabletting channel 4 by a thin rod, so that the pressed and formed tablet can be taken out.
Specifically, the vacuum level within the working chamber 10 remains constant during the sheeting process.
Specifically, before tabletting, the heating mechanism is controlled to work, and the tabletting columns 2 are preheated.
Test examples
When the tabletting device is used for tabletting, firstly, a compression rod 3 is pulled out from a tabletting column 2, then, the ammonium nitrate material is placed in a tabletting channel 4 of the tabletting column 2, then, a compression piece part 8 of the compression rod 3 is inserted into the tabletting channel 4, a heating mechanism and a vacuum pump 12 are controlled to work, the compression column 2 is heated by the heating mechanism, heat is transferred to a working cavity 10 through the tabletting column 2, the working cavity 10 is heated, the temperature of the working cavity 10 is heated to 100 ℃, and the vacuum pump 11 is used for vacuumizing the working cavity 10, so that the pressure in the working cavity 10 is reduced, the material is more easily compressed into a tablet under a negative pressure state, and the material pressed into the tablet is more compact, on the other hand, when the working chamber 10 is in a negative pressure state, the pressure piece part 8 is used for moving towards the base station 5, the moving resistance of the pressure rod 3 is reduced, after the temperature and the vacuum degree of the working chamber 10 reach preset values, the temperature and the pressure in the working chamber 10 are kept constant, then the driving device is controlled to work, the pressure piece part 8 of the pressure rod 3 is pushed by the driving device to move towards the base station in the tabletting channel 4, tabletting of materials is realized by extruding the materials in the working chamber, the pressure is controlled to be 20MPa in the tabletting process, under the working pressure and the working chamber 10 is in a negative pressure and high temperature state, crystal water in the ammonium nitrate material can be quickly evaporated, and water vapor is discharged under the suction of the vacuum pump, so that the prepared ammonium nitrate sheet is compact in quality, and the density reaches 1.69g/cm3The elementary substance density of the granular ammonium nitrate under the normal state is 1.72g/cm3Compared with the raw materialThe density difference is about 1.7%, the transparency is good, the purity is high, the tabletting time is short, and the tabletting can be finished with high quality and high efficiency. In addition, the same method is adopted to carry out tabletting treatment on the sulfur, the pressure is controlled to be 20MPa in the tabletting process, the temperature of a working cavity is 40 ℃, and the density of the sulfur sheet obtained by pressing is 2.03g/cm3The elemental density of the normally granulated sulfur was 2.07g/cm3And more than ten sheets are continuously pressed, the density difference is not more than 2%, the obtained sulfur sheet has very stable density, very smooth surface and obviously improved transparency.
The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (9)

1. The utility model provides a controllable film clamp of preforming environment, includes base (1), preforming post (2) and depression bar (3), its characterized in that: the device is characterized by further comprising a vacuumizing device and a heating mechanism, wherein the base (1), the tabletting columns (2) and the pressing rods (3) are sequentially arranged from bottom to top, a tabletting channel (4) is arranged in the tabletting columns (2), a base platform (5) is arranged at the top of the base (1), a first flexible sealing ring (6) is sleeved on the base platform (5), a second flexible sealing ring (9) is sleeved on the pressing rods (3), and the pressing rods (3) and the base platform (5) are inserted into the tabletting channel (4) in a working state; the bottom surface of the pressure lever (3), the tabletting channel (4) and the top surface of the base station (5) are enclosed to form a working cavity (10), the vacuumizing device is used for vacuumizing the working cavity (10), and the heating mechanism is used for heating the working cavity (10).
2. The sheeting apparatus of claim 1, wherein: the pressure lever (3) comprises a limiting part (7) and a pressing piece part (8), the limiting part (7) and the pressing piece part (8) are connected into a whole, and the diameter of the limiting part (7) is larger than that of the pressing piece part (8) and larger than the inner diameter of the pressing piece channel (4); the second flexible sealing ring (9) is sleeved on the outer circumference of the lower half part of the pressing piece part (8) and close to the bottom surface, and in a working state, part or all of the pressing piece part (8) is inserted into the pressing piece channel (4).
3. The sheeting apparatus of claim 1, wherein: the vacuumizing device comprises a vacuum pump (11) and a vacuum tube (12), an air suction hole (16) communicated with the working cavity (10) is formed in the side wall of the tabletting column (2), and the air suction hole (16) is formed in the circumference, close to the bottom surface, of the lower part of the working cavity (10); one end of the vacuum tube (12) is communicated with the working cavity (10) through an air exhaust hole (16), and the other end of the vacuum tube (12) is communicated with the vacuum pump (11); the vacuum pipe (12) is provided with a control valve, and the vacuum pump (11) is provided with a display instrument.
4. The sheeting apparatus of claim 1, wherein: the base (1) and the base platform (5) are integrally formed, and the first flexible sealing ring (6) is sleeved on the circumference of the upper half part of the base platform (5) close to the top surface.
5. A tabletting apparatus as set forth in claim 2, wherein: also comprises a display module (17); the side wall of the tabletting column (2) is further provided with a temperature measuring hole (15), the temperature measuring hole (15) is communicated with the working cavity (10), a temperature sensor is arranged at the temperature measuring hole (15) and used for detecting the temperature in the working cavity (10), and the temperature sensor is electrically connected with the display module (17).
6. The sheeting apparatus of claim 5, wherein: the heating mechanism comprises a resistance wire (13) and an adjuster (14), the resistance wire (13) is wound on the pressing sheet column (2), and the adjuster (14) is used for adjusting voltage and current introduced into the resistance wire (13).
7. The sheeting apparatus of claim 5, wherein: the display device is characterized by further comprising a pressure sensor, wherein the pressure sensor is arranged at the bottom of the base (1) or on the top surface of the base platform (5), and the pressure sensor is electrically connected with the display module (17).
8. The sheeting apparatus of claim 1, wherein: the device also comprises a driving device which is used for pushing the pressing rod (3) to move towards the base (1).
9. A tabletting apparatus as set forth in claim 2, wherein: the base (1), the tabletting columns (2) and the pressing rods (3) are all made of metal materials; the base (1), the base table (5), the pressing column (2), the limiting part (7) and the pressing piece part (8) are cylindrical respectively; the diameter of the base platform (5) is the same as that of the tablet pressing part (8), and the diameters of the base platform and the tablet pressing part are not larger than that of the tablet pressing channel (4); the outer diameters of the first flexible sealing ring (6) and the second flexible sealing ring (9) are both larger than the inner diameter of the tabletting channel (4).
CN201921577166.4U 2019-09-20 2019-09-20 Controllable film clamp of preforming environment Active CN211591426U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921577166.4U CN211591426U (en) 2019-09-20 2019-09-20 Controllable film clamp of preforming environment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921577166.4U CN211591426U (en) 2019-09-20 2019-09-20 Controllable film clamp of preforming environment

Publications (1)

Publication Number Publication Date
CN211591426U true CN211591426U (en) 2020-09-29

Family

ID=72575796

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921577166.4U Active CN211591426U (en) 2019-09-20 2019-09-20 Controllable film clamp of preforming environment

Country Status (1)

Country Link
CN (1) CN211591426U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110614791A (en) * 2019-09-20 2019-12-27 西南交通大学 Tabletting device with controllable tabletting environment and use method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110614791A (en) * 2019-09-20 2019-12-27 西南交通大学 Tabletting device with controllable tabletting environment and use method

Similar Documents

Publication Publication Date Title
CN110614791A (en) Tabletting device with controllable tabletting environment and use method
CN211591426U (en) Controllable film clamp of preforming environment
CN107914146A (en) A kind of intelligentized aluminium alloy extrusions process equipment
CN207468469U (en) A kind of adjustable device for shaping glass of thickness
CN206926057U (en) Ceramic bar isostatic pressing mold
CN106915907B (en) Processing method of one-step method for heating, edge sealing, vacuumizing and sealing vertically-placed vacuum glass
CN210603716U (en) Novel high vacuum degree vacuum gauge device
CN207550570U (en) A kind of glue material pressing device being vented
CN115463702B (en) Sweet potato virus detection device and detection method
CN215930653U (en) Heat pipe and heat pipe equipment
CN211253229U (en) Closing device for bio-pharmaceuticals
CN211803817U (en) Oxygen-insulated powder compacting die capable of being vacuumized and heated
CN212236078U (en) Solid phase extraction column filling device
CN113524768A (en) Pressing device for graphite bipolar plate of fuel cell
CN111929109A (en) AGM separator electrolyte collection device
CN217359822U (en) Wood-based plate and furniture detect with climatic chamber balancing unit
CN213502983U (en) Reduced iron powder charging device
CN219736750U (en) Urine bag gas tightness pressure testing arrangement
CN118204006B (en) Lithium manganate synthesizer by low-temperature solid-phase method
CN110385882B (en) Zinc oxide powder compression molding device
CN217324075U (en) Cell casting gun and cell casting gun assembly
CN213441333U (en) Medicinal material film clamp
CN212674653U (en) Device for efficiently measuring pressure bearing value of concentrated black tomato pulp bag
CN213950998U (en) Inert gas filling device for hollow glass production
CN215230371U (en) A film clamp for traditional chinese medicine production

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant