CN210752560U

CN210752560U - Feeding device for quantum dot preparation

Info

Publication number: CN210752560U
Application number: CN201921319924.2U
Authority: CN
Inventors: 雷双全; 段永杰
Original assignee: Jiaxing Nading Optoelectronics Technology Co ltd
Current assignee: Jiaxing Nading Optoelectronics Technology Co ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-06-16
Anticipated expiration: 2029-08-14

Abstract

The utility model relates to a feeding device for quantum dot preparation, in particular to the technical field of quantum dot preparation, which comprises a cylinder body, a plug body and a driver; the cylinder body is provided with a cavity and a discharge hole communicated with the cavity; the plug body is slidably arranged in the cavity, the plug body is in sealing fit with the inner wall of the cavity, and the plug body and the inner wall of the cavity enclose a storage chamber communicated with the discharge port; the driver is used for driving the plug body to slide so as to change the volume of the storage chamber; during the use, earlier with raw materials filling in the barrel, recycle the discharge gate and communicate reation kettle and storage compartment, start the driver at last, the driver drive cock body slides relative cavity, gliding cock body makes the volume of storage compartment reduce, and the raw materials in the storage compartment passes through the discharge gate and gets into reation kettle. The utility model discloses can solve the remaining problem of raw materials when guaranteeing quantum dot production quality.

Description

Feeding device for quantum dot preparation

Technical Field

The utility model belongs to the technical field of the quantum dot preparation technique and specifically relates to a feeding device is used in quantum dot preparation.

Background

The quantum dot, also called fluorescent semiconductor nanocrystal, is a quasi-zero-dimensional nanomaterial because the three dimensions are all on the nanometer scale. Due to the obvious quantum confinement effect, the fluorescent material can emit fluorescence after being excited, and the emission wavelength can be adjusted by changing the size, so that the fluorescent material has continuously distributed emission spectra. Based on obvious quantum effect and narrow peak width, the quantum dot has wide application prospect in the fields of solar cells, display devices, illumination, biomarkers and the like.

When the quantum dots are industrially prepared, two raw materials are required to be prepared, wherein one raw material is contained in a reaction kettle, the other raw material is added into the reaction kettle in an injection mode, and the nucleation growth of the quantum dot material is realized by combining anions in one raw material and cations in the other raw material.

At present, the following two methods are used for adding raw materials into a reaction kettle:

in the first mode, two ends of the infusion pump are respectively communicated with the reaction kettle and the storage box, and the raw materials are pumped into the reaction kettle by starting the infusion pump. Because the infusion pump has the storage cavity, partial raw materials can be remained in the infusion pump, and the utilization rate of the raw materials is further reduced.

And secondly, adding the raw materials into a closed tank, introducing high-pressure gas into the closed tank, and extruding the raw materials in the closed tank into the reaction kettle by the high-pressure gas after the closed tank is communicated with the reaction kettle. In the process, the speed of the raw materials entering the reaction kettle is uncontrollable, and the pressure in the reaction kettle is changed rapidly, so that the quality of the quantum dots is difficult to guarantee.

In view of the above, it is desirable to design a device to solve the problem of reducing the material residue while improving the quality of quantum dot production.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model aims to provide a feeding device is used in quantum dot preparation solves the remaining problem of raw materials when guaranteeing the quantum dot production quality.

The above object of the present invention is achieved by the following technical solutions:

a feeding device for quantum dot preparation comprises a cylinder, a plug body and a driver; the cylinder is provided with a cavity and a discharge hole communicated with the cavity; the plug body is slidably arranged in the cavity, the plug body is in sealing fit with the inner wall of the cavity, and the plug body and the inner wall of the cavity enclose a storage chamber communicated with the discharge port; the driver is used for driving the plug body to slide so as to change the volume of the storage chamber.

Through adopting above-mentioned technical scheme, during the use, earlier with raw materials filling in the barrel, recycle the discharge gate and communicate reation kettle and storage compartment, start the driver at last, the relative cavity of driver drive cock body slides, gliding cock body makes the volume of storage compartment reduce, and the raw materials in the storage compartment passes through the discharge gate and gets into reation kettle. The sliding speed of the plug body can be controlled by controlling the driver, and further the speed of the reduction of the volume of the storage chamber can be controlled, so that the speed of the raw materials entering the reaction kettle can be controlled. Meanwhile, in the process that the volume of the storage chamber is reduced, the influence of the raw materials entering the reaction kettle on the pressure in the reaction kettle is small, and further the influence on the production quality of the quantum dots is small.

The utility model discloses further set up to: the driver is a telescopic mechanism, and an execution end of the telescopic mechanism is connected with the plug body to drive the plug body to slide.

By adopting the technical scheme, the structure for controlling the sliding speed of the plug body by the actuating end of the telescopic mechanism is simple and convenient to control.

The utility model discloses further set up to: the telescopic mechanism is an air cylinder, and a piston rod of the air cylinder is connected with the plug body; or the telescopic mechanism is a hydraulic cylinder, and a piston rod of the hydraulic cylinder is connected with the plug body; or the telescopic mechanism is an electric cylinder, and a telescopic rod of the electric cylinder is connected with the plug body.

Through adopting above-mentioned technical scheme, the technology maturity, the structure of cylinder, pneumatic cylinder and electric jar are reliable.

The utility model discloses further set up to: the electric cylinder is a servo electric cylinder.

Through adopting above-mentioned technical scheme, when the electric jar was servo electric jar, the speed that the telescopic link drove the cock body motion is adjustable, and then can control the speed that the raw materials got into reation kettle from the discharge gate in a flexible way. The servo electric cylinder has quick acceleration and deceleration response performance; meanwhile, in the process of pushing the plug body to move by using the servo electric cylinder, the plug body can also move at a constant speed, so that the raw materials are uniformly added into the reaction kettle.

The utility model discloses further set up to: the feeding device further comprises a servo driver, and the servo driver is electrically connected with the servo electric cylinder.

By adopting the technical scheme, the moving position positioning accuracy of the servo electric cylinder is high, and the servo electric cylinder has high speed stability.

The utility model discloses further set up to: the telescopic mechanism is fixedly arranged on the cylinder body.

By adopting the technical scheme, when the telescopic mechanism is fixed on the barrel, the position relation between the plug body and the actuating end of the telescopic mechanism can be better ensured, and the reliability of the actuating end driving the plug body to move is ensured.

The utility model discloses further set up to: the telescopic mechanism is provided with a first connecting flange, the barrel is provided with a second connecting flange, and the first connecting flange and the second connecting flange are fixedly connected through a fastener.

Through adopting above-mentioned technical scheme, connected mode simple structure connects reliably, the later maintenance of being convenient for.

The utility model discloses further set up to: the feeding device further comprises a preheating structure, and the preheating structure is used for preheating raw materials in the material storage chamber.

Through adopting above-mentioned technical scheme, before the raw materials gets into reation kettle in the storage chamber, the raw materials is under the preheating treatment who preheats the structure, and the raw materials temperature in the storage chamber rises, and then reduces the difference in temperature of raw materials in the storage chamber and reation kettle, from having reduced because the risk that raw materials in the storage chamber and reation kettle received the influence because the difference in temperature leads to quantum dot production quality greatly.

The utility model discloses further set up to: the preheating structure comprises a sleeve shell sleeved outside the barrel, a heating cavity for heat-conducting fluid to flow is formed by the inner wall of the sleeve shell and the outer wall of the barrel in a surrounding mode, and a flow inlet and a flow outlet which are communicated with the heating cavity are formed in the sleeve shell.

By adopting the technical scheme, in use, the preheated fluid flows into the heating cavity from the inflow port, and flows out of the heating cavity from the outflow port; the preheating fluid flowing in the heating cavity heats the raw material in the storage chamber. When the heating mode is adopted, the temperature of the preheated fluid can be controlled to control the heated temperature of the raw materials, and then the temperature of the raw materials in the storage chamber can be controlled.

The utility model discloses further set up to: and the barrel is provided with a charging valve which can be communicated with the storage chamber.

Through adopting above-mentioned technical scheme, can conveniently feed into to the storage compartment through the charge valve.

In conclusion, the beneficial technical effects of the invention are as follows:

1. the speed of the reduction of the volume of the storage chamber is controlled, so that the speed of the raw materials entering the reaction kettle can be controlled. Meanwhile, in the process of reducing the volume of the storage chamber, the influence of the raw materials entering the reaction kettle on the pressure in the reaction kettle is small, and further the influence on the production quality of the quantum dots is small;

2. the servo drive is adopted to ensure the transfer precision and the operation stability of the equipment, the performance is stable, and the influence of equipment faults on the production quality is reduced;

3. preheat the difference in temperature of mechanism raw materials in can reducing the storage room and reation kettle, from having reduced because the risk that the raw materials received the influence because the difference in temperature leads to quantum dot production quality greatly in storage room and the reation kettle.

Drawings

Fig. 1 is a schematic structural diagram of a feeding device according to an embodiment of the present invention.

In the figure, 100, a cylinder; 110. a chamber; 120. a discharge port; 130. a storage chamber; 140. a housing; 141. a flow inlet; 142. an outflow port; 150. a heating cavity; 160. a feed valve; 170. a second connecting flange; 200. a plug body; 300. a driver; 300a, a telescoping mechanism; 301a, a first connecting flange; 301. an execution end; 310. a cylinder; 320. a hydraulic cylinder; 330. an electric cylinder; 330a, a servo electric cylinder; 331a, a telescopic rod; 330b, servo driver.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, a feeding device for quantum dot preparation comprises a cylinder 100, a plug 200 and a driver 300; the cylinder 100 is provided with a chamber 110 and a discharge hole 120 communicated with the chamber 110; the plug body 200 is slidably arranged in the chamber 110, the plug body 200 is in sealing fit with the inner wall of the chamber 110, and the plug body 200 and the inner wall of the chamber 110 enclose a storage chamber 130 communicated with the discharge hole 120; the driver 300 is used for driving the plug body 200 to slide so as to change the volume of the storage chamber 130.

When the feeding device is used, the raw materials are filled in the cylinder 100, the discharge port 120 is used for communicating the reaction kettle (not shown in the figure) with the storage chamber 130, finally the driver 300 is started, the driver 300 drives the plug body 200 to slide relative to the chamber 110, the sliding plug body 200 reduces the volume of the storage chamber 130, and the raw materials in the storage chamber 130 enter the reaction kettle through the discharge port 120. The sliding speed of the plug body 200 can be controlled by controlling the driver 300, and further the reduction speed of the volume of the storage chamber 130 can be controlled, so that the speed of the raw materials entering the reaction kettle can be controlled. Meanwhile, in the process of reducing the volume of the storage chamber 130, the influence of the raw materials entering the reaction kettle on the pressure in the reaction kettle is small, and further the influence on the production quality of the quantum dots is small.

In one embodiment, the actuator 300 is a telescopic mechanism 300a, and an actuating end 301 of the telescopic mechanism 300a is connected to the plug body 200 to drive the plug body 200 to slide. The structure of controlling the sliding speed of the plug body 200 by the actuating end 301 of the telescopic mechanism 300a is simple and convenient to control. It should be noted that the connection form of the actuating end 301 and the plug body 200 is various, for example: butt joint, fixed connection, rotary connection and the like.

It should be noted that in other embodiments, the driver 300 may be a non-telescoping mechanism. For example, the plug 200 and a part of the inner wall of the chamber 110 enclose the storage chamber 130, the plug 200 and another part of the inner wall of the chamber 110 enclose a closed liquid storage chamber (not shown), and a liquid is injected into the liquid storage chamber by an infusion pump (not shown) to push the plug 200 to slide in the chamber 110. The speed at which the plug body 200 slides can be controlled by controlling the flow rate of the fluid pumped into the fluid reservoir by the fluid delivery pump.

In one embodiment, the telescopic mechanism 300a is a cylinder 310, and a piston rod of the cylinder 310 is connected to the plug body 200; or the telescopic mechanism 300a is a hydraulic cylinder 320, and a piston rod of the hydraulic cylinder 320 is connected with the plug body 200; or the telescopic mechanism 300a is an electric cylinder 330, and a telescopic rod 331a of the electric cylinder 330 is connected with the plug body 200. The air cylinder 310, the hydraulic cylinder 320 and the electric cylinder 330 are mature in technology and reliable in structure.

Further, in one embodiment, the electric cylinder 330 is a servo electric cylinder 330 a. When the electric cylinder 330 is the servo electric cylinder 330a, the speed of the telescopic rod 331a driving the plug 200 is adjustable, so as to flexibly control the speed of the raw material entering the reaction kettle from the discharge port 120. The servo electric cylinder 330a has quick acceleration and deceleration response performance; meanwhile, in the process of pushing the plug body 200 to move by using the servo electric cylinder 330a, the plug body 200 can also move at a uniform speed, thereby ensuring that the raw materials are uniformly added into the reaction kettle.

Of course, the cylinder 310 may also be a servo cylinder; or the hydraulic cylinder may also be a servo hydraulic cylinder.

In one embodiment, the charging device further comprises a servo driver 330b, and the servo driver 330b is electrically connected to the servo electric cylinder 330 a.

In one embodiment, the telescoping mechanism 300a is fixedly mounted to the barrel 100. When the telescopic mechanism 300a is fixed on the cylinder 100, the position relationship between the plug body 200 and the actuating end 301 of the telescopic mechanism 300a can be better ensured, and the reliability of the movement of the plug body 200 driven by the actuating end 301 is ensured.

In one embodiment, the telescopic mechanism 300a is provided with a first connecting flange 301a, the cylinder 100 is provided with a second connecting flange 170, and the first connecting flange 301a and the second connecting flange 170 are fixedly connected through a fastener. Simple structure and reliable connection.

In one embodiment, the loading unit further comprises a preheating arrangement (not shown) for preheating the feedstock within the accumulator 130. Before the raw materials get into reation kettle in the storage compartment 130, the raw materials is under the preheating treatment of preheating the structure, and the raw materials temperature in the storage compartment 130 rises, and then reduces the difference in temperature of raw materials in the storage compartment 130 and the reation kettle, has reduced because the risk that raw materials in the storage compartment 130 and the reation kettle in the raw materials lead to quantum dot production quality to receive the influence because the difference in temperature is big.

In one embodiment, the preheating structure includes a casing 140 disposed outside the barrel 100, a heating chamber 150 for flowing heat transfer fluid is defined by an inner wall of the casing 140 and an outer wall of the barrel 100, and the casing 140 is provided with an inlet 141 and an outlet 142 communicated with the heating chamber 150. In use, preheated fluid flows into the heating chamber 150 from the inlet 141 and preheated fluid flows out of the heating chamber 150 from the outlet 142; the preheated fluid flowing within the heating chamber 150 heats the material within the storage chamber 130. When the heating mode is adopted, the raw material heating temperature can be controlled by controlling the temperature of the preheated fluid, so that the temperature of the raw material in the storage chamber 130 can be controlled.

It should be noted that, in other embodiments, the preheating structure may also be a heating layer (not shown in the figures) coated outside the cylinder 100, and a heating wire (not shown in the figures) is arranged in the heating layer; or the preheating structure may be a heat generating device disposed in the barrel 100.

In one embodiment, the cartridge 100 is provided with a charge valve 160 that can communicate with the storage chamber 130. The accumulator 130 can be charged through a charge valve 160.

It should be noted that a feed valve (not shown) is disposed on the general reaction kettle, and the discharge port 120 is connected to the feed valve. When the same quantum dot is processed for a long time, the storage chamber 130 needs to be replenished with raw materials several times. In this case, the feed valve can be closed and the feedstock can be added to the holding chamber 130 through the feed valve 160.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a feeding device for quantum dot preparation which characterized in that: the device comprises a cylinder body (100), wherein the cylinder body (100) is provided with a cavity (110) and a discharge hole (120) communicated with the cavity (110);

the plug body (200) is slidably arranged in the cavity (110), the plug body (200) is in sealing fit with the inner wall of the cavity (110), and the plug body (200) and the inner wall of the cavity (110) enclose a storage chamber (130) communicated with the discharge hole (120);

a driver (300), wherein the driver (300) is used for driving the plug body (200) to slide so as to change the volume of the storage chamber (130).

2. The charging device for quantum dot preparation according to claim 1, characterized in that: the driver (300) is a telescopic mechanism (300a), and an execution end (301) of the telescopic mechanism (300a) is connected with the plug body (200) to drive the plug body (200) to slide.

3. The charging device for quantum dot preparation according to claim 2, characterized in that: the telescopic mechanism (300a) is an air cylinder (310), and a piston rod of the air cylinder (310) is connected with the plug body (200); or the telescopic mechanism (300a) is a hydraulic cylinder (320), and a piston rod of the hydraulic cylinder (320) is connected with the plug body (200); or the telescopic mechanism (300a) is an electric cylinder (330), and a telescopic rod (331a) of the electric cylinder (330) is connected with the plug body (200).

4. The charging device for quantum dot preparation according to claim 3, characterized in that: the electric cylinder (330) is a servo electric cylinder (330 a).

5. The charging device for quantum dot preparation according to claim 4, characterized in that: the servo motor further comprises a servo driver (330b), and the servo driver (330b) is electrically connected with the servo electric cylinder (330 a).

6. The charging device for quantum dot preparation according to claim 2, characterized in that: the telescopic mechanism (300a) is fixedly arranged on the cylinder body (100).

7. The charging device for quantum dot preparation according to claim 6, characterized in that: the telescopic mechanism (300a) is provided with a first connecting flange (301a), the barrel (100) is provided with a second connecting flange (170), and the first connecting flange (301a) and the second connecting flange (170) are fixedly connected through a fastener.

8. The charging device for quantum dot preparation according to claim 1, characterized in that: the preheating device further comprises a preheating structure, and the preheating structure is used for preheating the raw materials in the storage chamber (130).

9. The charging device for quantum dot preparation according to claim 8, characterized in that: the preheating structure comprises a sleeve (140) sleeved outside the barrel (100), a heating cavity (150) for heat-conducting fluid to flow is formed by the inner wall of the sleeve (140) and the outer wall of the barrel (100), and a flow inlet (141) and a flow outlet (142) which are communicated with the heating cavity (150) are formed in the sleeve (140).

10. The charging device for quantum dot preparation according to claim 1, characterized in that: the cylinder (100) is provided with a feed valve (160) which can be communicated with the storage chamber (130).